gitweb / gitweb.perlon commit Merge branch 'jk/send-pack' into HEAD (7ae4dd0)
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21BEGIN {
  22        CGI->compile() if $ENV{'MOD_PERL'};
  23}
  24
  25our $cgi = new CGI;
  26our $version = "++GIT_VERSION++";
  27our $my_url = $cgi->url();
  28our $my_uri = $cgi->url(-absolute => 1);
  29
  30# core git executable to use
  31# this can just be "git" if your webserver has a sensible PATH
  32our $GIT = "++GIT_BINDIR++/git";
  33
  34# absolute fs-path which will be prepended to the project path
  35#our $projectroot = "/pub/scm";
  36our $projectroot = "++GITWEB_PROJECTROOT++";
  37
  38# fs traversing limit for getting project list
  39# the number is relative to the projectroot
  40our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
  41
  42# target of the home link on top of all pages
  43our $home_link = $my_uri || "/";
  44
  45# string of the home link on top of all pages
  46our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  47
  48# name of your site or organization to appear in page titles
  49# replace this with something more descriptive for clearer bookmarks
  50our $site_name = "++GITWEB_SITENAME++"
  51                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  52
  53# filename of html text to include at top of each page
  54our $site_header = "++GITWEB_SITE_HEADER++";
  55# html text to include at home page
  56our $home_text = "++GITWEB_HOMETEXT++";
  57# filename of html text to include at bottom of each page
  58our $site_footer = "++GITWEB_SITE_FOOTER++";
  59
  60# URI of stylesheets
  61our @stylesheets = ("++GITWEB_CSS++");
  62# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  63our $stylesheet = undef;
  64# URI of GIT logo (72x27 size)
  65our $logo = "++GITWEB_LOGO++";
  66# URI of GIT favicon, assumed to be image/png type
  67our $favicon = "++GITWEB_FAVICON++";
  68
  69# URI and label (title) of GIT logo link
  70#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  71#our $logo_label = "git documentation";
  72our $logo_url = "http://git.or.cz/";
  73our $logo_label = "git homepage";
  74
  75# source of projects list
  76our $projects_list = "++GITWEB_LIST++";
  77
  78# the width (in characters) of the projects list "Description" column
  79our $projects_list_description_width = 25;
  80
  81# default order of projects list
  82# valid values are none, project, descr, owner, and age
  83our $default_projects_order = "project";
  84
  85# show repository only if this file exists
  86# (only effective if this variable evaluates to true)
  87our $export_ok = "++GITWEB_EXPORT_OK++";
  88
  89# only allow viewing of repositories also shown on the overview page
  90our $strict_export = "++GITWEB_STRICT_EXPORT++";
  91
  92# list of git base URLs used for URL to where fetch project from,
  93# i.e. full URL is "$git_base_url/$project"
  94our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  95
  96# default blob_plain mimetype and default charset for text/plain blob
  97our $default_blob_plain_mimetype = 'text/plain';
  98our $default_text_plain_charset  = undef;
  99
 100# file to use for guessing MIME types before trying /etc/mime.types
 101# (relative to the current git repository)
 102our $mimetypes_file = undef;
 103
 104# assume this charset if line contains non-UTF-8 characters;
 105# it should be valid encoding (see Encoding::Supported(3pm) for list),
 106# for which encoding all byte sequences are valid, for example
 107# 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
 108# could be even 'utf-8' for the old behavior)
 109our $fallback_encoding = 'latin1';
 110
 111# rename detection options for git-diff and git-diff-tree
 112# - default is '-M', with the cost proportional to
 113#   (number of removed files) * (number of new files).
 114# - more costly is '-C' (which implies '-M'), with the cost proportional to
 115#   (number of changed files + number of removed files) * (number of new files)
 116# - even more costly is '-C', '--find-copies-harder' with cost
 117#   (number of files in the original tree) * (number of new files)
 118# - one might want to include '-B' option, e.g. '-B', '-M'
 119our @diff_opts = ('-M'); # taken from git_commit
 120
 121# information about snapshot formats that gitweb is capable of serving
 122our %known_snapshot_formats = (
 123        # name => {
 124        #       'display' => display name,
 125        #       'type' => mime type,
 126        #       'suffix' => filename suffix,
 127        #       'format' => --format for git-archive,
 128        #       'compressor' => [compressor command and arguments]
 129        #                       (array reference, optional)}
 130        #
 131        'tgz' => {
 132                'display' => 'tar.gz',
 133                'type' => 'application/x-gzip',
 134                'suffix' => '.tar.gz',
 135                'format' => 'tar',
 136                'compressor' => ['gzip']},
 137
 138        'tbz2' => {
 139                'display' => 'tar.bz2',
 140                'type' => 'application/x-bzip2',
 141                'suffix' => '.tar.bz2',
 142                'format' => 'tar',
 143                'compressor' => ['bzip2']},
 144
 145        'zip' => {
 146                'display' => 'zip',
 147                'type' => 'application/x-zip',
 148                'suffix' => '.zip',
 149                'format' => 'zip'},
 150);
 151
 152# Aliases so we understand old gitweb.snapshot values in repository
 153# configuration.
 154our %known_snapshot_format_aliases = (
 155        'gzip'  => 'tgz',
 156        'bzip2' => 'tbz2',
 157
 158        # backward compatibility: legacy gitweb config support
 159        'x-gzip' => undef, 'gz' => undef,
 160        'x-bzip2' => undef, 'bz2' => undef,
 161        'x-zip' => undef, '' => undef,
 162);
 163
 164# You define site-wide feature defaults here; override them with
 165# $GITWEB_CONFIG as necessary.
 166our %feature = (
 167        # feature => {
 168        #       'sub' => feature-sub (subroutine),
 169        #       'override' => allow-override (boolean),
 170        #       'default' => [ default options...] (array reference)}
 171        #
 172        # if feature is overridable (it means that allow-override has true value),
 173        # then feature-sub will be called with default options as parameters;
 174        # return value of feature-sub indicates if to enable specified feature
 175        #
 176        # if there is no 'sub' key (no feature-sub), then feature cannot be
 177        # overriden
 178        #
 179        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 180
 181        # Enable the 'blame' blob view, showing the last commit that modified
 182        # each line in the file. This can be very CPU-intensive.
 183
 184        # To enable system wide have in $GITWEB_CONFIG
 185        # $feature{'blame'}{'default'} = [1];
 186        # To have project specific config enable override in $GITWEB_CONFIG
 187        # $feature{'blame'}{'override'} = 1;
 188        # and in project config gitweb.blame = 0|1;
 189        'blame' => {
 190                'sub' => \&feature_blame,
 191                'override' => 0,
 192                'default' => [0]},
 193
 194        # Enable the 'snapshot' link, providing a compressed archive of any
 195        # tree. This can potentially generate high traffic if you have large
 196        # project.
 197
 198        # Value is a list of formats defined in %known_snapshot_formats that
 199        # you wish to offer.
 200        # To disable system wide have in $GITWEB_CONFIG
 201        # $feature{'snapshot'}{'default'} = [];
 202        # To have project specific config enable override in $GITWEB_CONFIG
 203        # $feature{'snapshot'}{'override'} = 1;
 204        # and in project config, a comma-separated list of formats or "none"
 205        # to disable.  Example: gitweb.snapshot = tbz2,zip;
 206        'snapshot' => {
 207                'sub' => \&feature_snapshot,
 208                'override' => 0,
 209                'default' => ['tgz']},
 210
 211        # Enable text search, which will list the commits which match author,
 212        # committer or commit text to a given string.  Enabled by default.
 213        # Project specific override is not supported.
 214        'search' => {
 215                'override' => 0,
 216                'default' => [1]},
 217
 218        # Enable grep search, which will list the files in currently selected
 219        # tree containing the given string. Enabled by default. This can be
 220        # potentially CPU-intensive, of course.
 221
 222        # To enable system wide have in $GITWEB_CONFIG
 223        # $feature{'grep'}{'default'} = [1];
 224        # To have project specific config enable override in $GITWEB_CONFIG
 225        # $feature{'grep'}{'override'} = 1;
 226        # and in project config gitweb.grep = 0|1;
 227        'grep' => {
 228                'override' => 0,
 229                'default' => [1]},
 230
 231        # Enable the pickaxe search, which will list the commits that modified
 232        # a given string in a file. This can be practical and quite faster
 233        # alternative to 'blame', but still potentially CPU-intensive.
 234
 235        # To enable system wide have in $GITWEB_CONFIG
 236        # $feature{'pickaxe'}{'default'} = [1];
 237        # To have project specific config enable override in $GITWEB_CONFIG
 238        # $feature{'pickaxe'}{'override'} = 1;
 239        # and in project config gitweb.pickaxe = 0|1;
 240        'pickaxe' => {
 241                'sub' => \&feature_pickaxe,
 242                'override' => 0,
 243                'default' => [1]},
 244
 245        # Make gitweb use an alternative format of the URLs which can be
 246        # more readable and natural-looking: project name is embedded
 247        # directly in the path and the query string contains other
 248        # auxiliary information. All gitweb installations recognize
 249        # URL in either format; this configures in which formats gitweb
 250        # generates links.
 251
 252        # To enable system wide have in $GITWEB_CONFIG
 253        # $feature{'pathinfo'}{'default'} = [1];
 254        # Project specific override is not supported.
 255
 256        # Note that you will need to change the default location of CSS,
 257        # favicon, logo and possibly other files to an absolute URL. Also,
 258        # if gitweb.cgi serves as your indexfile, you will need to force
 259        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 260        'pathinfo' => {
 261                'override' => 0,
 262                'default' => [0]},
 263
 264        # Make gitweb consider projects in project root subdirectories
 265        # to be forks of existing projects. Given project $projname.git,
 266        # projects matching $projname/*.git will not be shown in the main
 267        # projects list, instead a '+' mark will be added to $projname
 268        # there and a 'forks' view will be enabled for the project, listing
 269        # all the forks. If project list is taken from a file, forks have
 270        # to be listed after the main project.
 271
 272        # To enable system wide have in $GITWEB_CONFIG
 273        # $feature{'forks'}{'default'} = [1];
 274        # Project specific override is not supported.
 275        'forks' => {
 276                'override' => 0,
 277                'default' => [0]},
 278);
 279
 280sub gitweb_check_feature {
 281        my ($name) = @_;
 282        return unless exists $feature{$name};
 283        my ($sub, $override, @defaults) = (
 284                $feature{$name}{'sub'},
 285                $feature{$name}{'override'},
 286                @{$feature{$name}{'default'}});
 287        if (!$override) { return @defaults; }
 288        if (!defined $sub) {
 289                warn "feature $name is not overrideable";
 290                return @defaults;
 291        }
 292        return $sub->(@defaults);
 293}
 294
 295sub feature_blame {
 296        my ($val) = git_get_project_config('blame', '--bool');
 297
 298        if ($val eq 'true') {
 299                return 1;
 300        } elsif ($val eq 'false') {
 301                return 0;
 302        }
 303
 304        return $_[0];
 305}
 306
 307sub feature_snapshot {
 308        my (@fmts) = @_;
 309
 310        my ($val) = git_get_project_config('snapshot');
 311
 312        if ($val) {
 313                @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
 314        }
 315
 316        return @fmts;
 317}
 318
 319sub feature_grep {
 320        my ($val) = git_get_project_config('grep', '--bool');
 321
 322        if ($val eq 'true') {
 323                return (1);
 324        } elsif ($val eq 'false') {
 325                return (0);
 326        }
 327
 328        return ($_[0]);
 329}
 330
 331sub feature_pickaxe {
 332        my ($val) = git_get_project_config('pickaxe', '--bool');
 333
 334        if ($val eq 'true') {
 335                return (1);
 336        } elsif ($val eq 'false') {
 337                return (0);
 338        }
 339
 340        return ($_[0]);
 341}
 342
 343# checking HEAD file with -e is fragile if the repository was
 344# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 345# and then pruned.
 346sub check_head_link {
 347        my ($dir) = @_;
 348        my $headfile = "$dir/HEAD";
 349        return ((-e $headfile) ||
 350                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 351}
 352
 353sub check_export_ok {
 354        my ($dir) = @_;
 355        return (check_head_link($dir) &&
 356                (!$export_ok || -e "$dir/$export_ok"));
 357}
 358
 359# process alternate names for backward compatibility
 360# filter out unsupported (unknown) snapshot formats
 361sub filter_snapshot_fmts {
 362        my @fmts = @_;
 363
 364        @fmts = map {
 365                exists $known_snapshot_format_aliases{$_} ?
 366                       $known_snapshot_format_aliases{$_} : $_} @fmts;
 367        @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
 368
 369}
 370
 371our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 372do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 373
 374# version of the core git binary
 375our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 376
 377$projects_list ||= $projectroot;
 378
 379# ======================================================================
 380# input validation and dispatch
 381our $action = $cgi->param('a');
 382if (defined $action) {
 383        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 384                die_error(undef, "Invalid action parameter");
 385        }
 386}
 387
 388# parameters which are pathnames
 389our $project = $cgi->param('p');
 390if (defined $project) {
 391        if (!validate_pathname($project) ||
 392            !(-d "$projectroot/$project") ||
 393            !check_head_link("$projectroot/$project") ||
 394            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 395            ($strict_export && !project_in_list($project))) {
 396                undef $project;
 397                die_error(undef, "No such project");
 398        }
 399}
 400
 401our $file_name = $cgi->param('f');
 402if (defined $file_name) {
 403        if (!validate_pathname($file_name)) {
 404                die_error(undef, "Invalid file parameter");
 405        }
 406}
 407
 408our $file_parent = $cgi->param('fp');
 409if (defined $file_parent) {
 410        if (!validate_pathname($file_parent)) {
 411                die_error(undef, "Invalid file parent parameter");
 412        }
 413}
 414
 415# parameters which are refnames
 416our $hash = $cgi->param('h');
 417if (defined $hash) {
 418        if (!validate_refname($hash)) {
 419                die_error(undef, "Invalid hash parameter");
 420        }
 421}
 422
 423our $hash_parent = $cgi->param('hp');
 424if (defined $hash_parent) {
 425        if (!validate_refname($hash_parent)) {
 426                die_error(undef, "Invalid hash parent parameter");
 427        }
 428}
 429
 430our $hash_base = $cgi->param('hb');
 431if (defined $hash_base) {
 432        if (!validate_refname($hash_base)) {
 433                die_error(undef, "Invalid hash base parameter");
 434        }
 435}
 436
 437my %allowed_options = (
 438        "--no-merges" => [ qw(rss atom log shortlog history) ],
 439);
 440
 441our @extra_options = $cgi->param('opt');
 442if (defined @extra_options) {
 443        foreach my $opt (@extra_options) {
 444                if (not exists $allowed_options{$opt}) {
 445                        die_error(undef, "Invalid option parameter");
 446                }
 447                if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
 448                        die_error(undef, "Invalid option parameter for this action");
 449                }
 450        }
 451}
 452
 453our $hash_parent_base = $cgi->param('hpb');
 454if (defined $hash_parent_base) {
 455        if (!validate_refname($hash_parent_base)) {
 456                die_error(undef, "Invalid hash parent base parameter");
 457        }
 458}
 459
 460# other parameters
 461our $page = $cgi->param('pg');
 462if (defined $page) {
 463        if ($page =~ m/[^0-9]/) {
 464                die_error(undef, "Invalid page parameter");
 465        }
 466}
 467
 468our $searchtype = $cgi->param('st');
 469if (defined $searchtype) {
 470        if ($searchtype =~ m/[^a-z]/) {
 471                die_error(undef, "Invalid searchtype parameter");
 472        }
 473}
 474
 475our $searchtext = $cgi->param('s');
 476our $search_regexp;
 477if (defined $searchtext) {
 478        if (length($searchtext) < 2) {
 479                die_error(undef, "At least two characters are required for search parameter");
 480        }
 481        $search_regexp = quotemeta $searchtext;
 482}
 483
 484# now read PATH_INFO and use it as alternative to parameters
 485sub evaluate_path_info {
 486        return if defined $project;
 487        my $path_info = $ENV{"PATH_INFO"};
 488        return if !$path_info;
 489        $path_info =~ s,^/+,,;
 490        return if !$path_info;
 491        # find which part of PATH_INFO is project
 492        $project = $path_info;
 493        $project =~ s,/+$,,;
 494        while ($project && !check_head_link("$projectroot/$project")) {
 495                $project =~ s,/*[^/]*$,,;
 496        }
 497        # validate project
 498        $project = validate_pathname($project);
 499        if (!$project ||
 500            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 501            ($strict_export && !project_in_list($project))) {
 502                undef $project;
 503                return;
 504        }
 505        # do not change any parameters if an action is given using the query string
 506        return if $action;
 507        $path_info =~ s,^$project/*,,;
 508        my ($refname, $pathname) = split(/:/, $path_info, 2);
 509        if (defined $pathname) {
 510                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 511                # we could use git_get_type(branch:pathname), but it needs $git_dir
 512                $pathname =~ s,^/+,,;
 513                if (!$pathname || substr($pathname, -1) eq "/") {
 514                        $action  ||= "tree";
 515                        $pathname =~ s,/$,,;
 516                } else {
 517                        $action  ||= "blob_plain";
 518                }
 519                $hash_base ||= validate_refname($refname);
 520                $file_name ||= validate_pathname($pathname);
 521        } elsif (defined $refname) {
 522                # we got "project.git/branch"
 523                $action ||= "shortlog";
 524                $hash   ||= validate_refname($refname);
 525        }
 526}
 527evaluate_path_info();
 528
 529# path to the current git repository
 530our $git_dir;
 531$git_dir = "$projectroot/$project" if $project;
 532
 533# dispatch
 534my %actions = (
 535        "blame" => \&git_blame2,
 536        "blobdiff" => \&git_blobdiff,
 537        "blobdiff_plain" => \&git_blobdiff_plain,
 538        "blob" => \&git_blob,
 539        "blob_plain" => \&git_blob_plain,
 540        "commitdiff" => \&git_commitdiff,
 541        "commitdiff_plain" => \&git_commitdiff_plain,
 542        "commit" => \&git_commit,
 543        "forks" => \&git_forks,
 544        "heads" => \&git_heads,
 545        "history" => \&git_history,
 546        "log" => \&git_log,
 547        "rss" => \&git_rss,
 548        "atom" => \&git_atom,
 549        "search" => \&git_search,
 550        "search_help" => \&git_search_help,
 551        "shortlog" => \&git_shortlog,
 552        "summary" => \&git_summary,
 553        "tag" => \&git_tag,
 554        "tags" => \&git_tags,
 555        "tree" => \&git_tree,
 556        "snapshot" => \&git_snapshot,
 557        "object" => \&git_object,
 558        # those below don't need $project
 559        "opml" => \&git_opml,
 560        "project_list" => \&git_project_list,
 561        "project_index" => \&git_project_index,
 562);
 563
 564if (!defined $action) {
 565        if (defined $hash) {
 566                $action = git_get_type($hash);
 567        } elsif (defined $hash_base && defined $file_name) {
 568                $action = git_get_type("$hash_base:$file_name");
 569        } elsif (defined $project) {
 570                $action = 'summary';
 571        } else {
 572                $action = 'project_list';
 573        }
 574}
 575if (!defined($actions{$action})) {
 576        die_error(undef, "Unknown action");
 577}
 578if ($action !~ m/^(opml|project_list|project_index)$/ &&
 579    !$project) {
 580        die_error(undef, "Project needed");
 581}
 582$actions{$action}->();
 583exit;
 584
 585## ======================================================================
 586## action links
 587
 588sub href(%) {
 589        my %params = @_;
 590        # default is to use -absolute url() i.e. $my_uri
 591        my $href = $params{-full} ? $my_url : $my_uri;
 592
 593        # XXX: Warning: If you touch this, check the search form for updating,
 594        # too.
 595
 596        my @mapping = (
 597                project => "p",
 598                action => "a",
 599                file_name => "f",
 600                file_parent => "fp",
 601                hash => "h",
 602                hash_parent => "hp",
 603                hash_base => "hb",
 604                hash_parent_base => "hpb",
 605                page => "pg",
 606                order => "o",
 607                searchtext => "s",
 608                searchtype => "st",
 609                snapshot_format => "sf",
 610                extra_options => "opt",
 611        );
 612        my %mapping = @mapping;
 613
 614        $params{'project'} = $project unless exists $params{'project'};
 615
 616        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 617        if ($use_pathinfo) {
 618                # use PATH_INFO for project name
 619                $href .= "/$params{'project'}" if defined $params{'project'};
 620                delete $params{'project'};
 621
 622                # Summary just uses the project path URL
 623                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 624                        delete $params{'action'};
 625                }
 626        }
 627
 628        # now encode the parameters explicitly
 629        my @result = ();
 630        for (my $i = 0; $i < @mapping; $i += 2) {
 631                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 632                if (defined $params{$name}) {
 633                        if (ref($params{$name}) eq "ARRAY") {
 634                                foreach my $par (@{$params{$name}}) {
 635                                        push @result, $symbol . "=" . esc_param($par);
 636                                }
 637                        } else {
 638                                push @result, $symbol . "=" . esc_param($params{$name});
 639                        }
 640                }
 641        }
 642        $href .= "?" . join(';', @result) if scalar @result;
 643
 644        return $href;
 645}
 646
 647
 648## ======================================================================
 649## validation, quoting/unquoting and escaping
 650
 651sub validate_pathname {
 652        my $input = shift || return undef;
 653
 654        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 655        # at the beginning, at the end, and between slashes.
 656        # also this catches doubled slashes
 657        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 658                return undef;
 659        }
 660        # no null characters
 661        if ($input =~ m!\0!) {
 662                return undef;
 663        }
 664        return $input;
 665}
 666
 667sub validate_refname {
 668        my $input = shift || return undef;
 669
 670        # textual hashes are O.K.
 671        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 672                return $input;
 673        }
 674        # it must be correct pathname
 675        $input = validate_pathname($input)
 676                or return undef;
 677        # restrictions on ref name according to git-check-ref-format
 678        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 679                return undef;
 680        }
 681        return $input;
 682}
 683
 684# decode sequences of octets in utf8 into Perl's internal form,
 685# which is utf-8 with utf8 flag set if needed.  gitweb writes out
 686# in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
 687sub to_utf8 {
 688        my $str = shift;
 689        my $res;
 690        eval { $res = decode_utf8($str, Encode::FB_CROAK); };
 691        if (defined $res) {
 692                return $res;
 693        } else {
 694                return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
 695        }
 696}
 697
 698# quote unsafe chars, but keep the slash, even when it's not
 699# correct, but quoted slashes look too horrible in bookmarks
 700sub esc_param {
 701        my $str = shift;
 702        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 703        $str =~ s/\+/%2B/g;
 704        $str =~ s/ /\+/g;
 705        return $str;
 706}
 707
 708# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 709sub esc_url {
 710        my $str = shift;
 711        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 712        $str =~ s/\+/%2B/g;
 713        $str =~ s/ /\+/g;
 714        return $str;
 715}
 716
 717# replace invalid utf8 character with SUBSTITUTION sequence
 718sub esc_html ($;%) {
 719        my $str = shift;
 720        my %opts = @_;
 721
 722        $str = to_utf8($str);
 723        $str = $cgi->escapeHTML($str);
 724        if ($opts{'-nbsp'}) {
 725                $str =~ s/ /&nbsp;/g;
 726        }
 727        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 728        return $str;
 729}
 730
 731# quote control characters and escape filename to HTML
 732sub esc_path {
 733        my $str = shift;
 734        my %opts = @_;
 735
 736        $str = to_utf8($str);
 737        $str = $cgi->escapeHTML($str);
 738        if ($opts{'-nbsp'}) {
 739                $str =~ s/ /&nbsp;/g;
 740        }
 741        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 742        return $str;
 743}
 744
 745# Make control characters "printable", using character escape codes (CEC)
 746sub quot_cec {
 747        my $cntrl = shift;
 748        my %es = ( # character escape codes, aka escape sequences
 749                   "\t" => '\t',   # tab            (HT)
 750                   "\n" => '\n',   # line feed      (LF)
 751                   "\r" => '\r',   # carrige return (CR)
 752                   "\f" => '\f',   # form feed      (FF)
 753                   "\b" => '\b',   # backspace      (BS)
 754                   "\a" => '\a',   # alarm (bell)   (BEL)
 755                   "\e" => '\e',   # escape         (ESC)
 756                   "\013" => '\v', # vertical tab   (VT)
 757                   "\000" => '\0', # nul character  (NUL)
 758                   );
 759        my $chr = ( (exists $es{$cntrl})
 760                    ? $es{$cntrl}
 761                    : sprintf('\%03o', ord($cntrl)) );
 762        return "<span class=\"cntrl\">$chr</span>";
 763}
 764
 765# Alternatively use unicode control pictures codepoints,
 766# Unicode "printable representation" (PR)
 767sub quot_upr {
 768        my $cntrl = shift;
 769        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 770        return "<span class=\"cntrl\">$chr</span>";
 771}
 772
 773# git may return quoted and escaped filenames
 774sub unquote {
 775        my $str = shift;
 776
 777        sub unq {
 778                my $seq = shift;
 779                my %es = ( # character escape codes, aka escape sequences
 780                        't' => "\t",   # tab            (HT, TAB)
 781                        'n' => "\n",   # newline        (NL)
 782                        'r' => "\r",   # return         (CR)
 783                        'f' => "\f",   # form feed      (FF)
 784                        'b' => "\b",   # backspace      (BS)
 785                        'a' => "\a",   # alarm (bell)   (BEL)
 786                        'e' => "\e",   # escape         (ESC)
 787                        'v' => "\013", # vertical tab   (VT)
 788                );
 789
 790                if ($seq =~ m/^[0-7]{1,3}$/) {
 791                        # octal char sequence
 792                        return chr(oct($seq));
 793                } elsif (exists $es{$seq}) {
 794                        # C escape sequence, aka character escape code
 795                        return $es{$seq}
 796                }
 797                # quoted ordinary character
 798                return $seq;
 799        }
 800
 801        if ($str =~ m/^"(.*)"$/) {
 802                # needs unquoting
 803                $str = $1;
 804                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 805        }
 806        return $str;
 807}
 808
 809# escape tabs (convert tabs to spaces)
 810sub untabify {
 811        my $line = shift;
 812
 813        while ((my $pos = index($line, "\t")) != -1) {
 814                if (my $count = (8 - ($pos % 8))) {
 815                        my $spaces = ' ' x $count;
 816                        $line =~ s/\t/$spaces/;
 817                }
 818        }
 819
 820        return $line;
 821}
 822
 823sub project_in_list {
 824        my $project = shift;
 825        my @list = git_get_projects_list();
 826        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 827}
 828
 829## ----------------------------------------------------------------------
 830## HTML aware string manipulation
 831
 832sub chop_str {
 833        my $str = shift;
 834        my $len = shift;
 835        my $add_len = shift || 10;
 836
 837        # allow only $len chars, but don't cut a word if it would fit in $add_len
 838        # if it doesn't fit, cut it if it's still longer than the dots we would add
 839        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 840        my $body = $1;
 841        my $tail = $2;
 842        if (length($tail) > 4) {
 843                $tail = " ...";
 844                $body =~ s/&[^;]*$//; # remove chopped character entities
 845        }
 846        return "$body$tail";
 847}
 848
 849# takes the same arguments as chop_str, but also wraps a <span> around the
 850# result with a title attribute if it does get chopped. Additionally, the
 851# string is HTML-escaped.
 852sub chop_and_escape_str {
 853        my $str = shift;
 854        my $len = shift;
 855        my $add_len = shift || 10;
 856
 857        my $chopped = chop_str($str, $len, $add_len);
 858        if ($chopped eq $str) {
 859                return esc_html($chopped);
 860        } else {
 861                return qq{<span title="} . esc_html($str) . qq{">} .
 862                        esc_html($chopped) . qq{</span>};
 863        }
 864}
 865
 866## ----------------------------------------------------------------------
 867## functions returning short strings
 868
 869# CSS class for given age value (in seconds)
 870sub age_class {
 871        my $age = shift;
 872
 873        if (!defined $age) {
 874                return "noage";
 875        } elsif ($age < 60*60*2) {
 876                return "age0";
 877        } elsif ($age < 60*60*24*2) {
 878                return "age1";
 879        } else {
 880                return "age2";
 881        }
 882}
 883
 884# convert age in seconds to "nn units ago" string
 885sub age_string {
 886        my $age = shift;
 887        my $age_str;
 888
 889        if ($age > 60*60*24*365*2) {
 890                $age_str = (int $age/60/60/24/365);
 891                $age_str .= " years ago";
 892        } elsif ($age > 60*60*24*(365/12)*2) {
 893                $age_str = int $age/60/60/24/(365/12);
 894                $age_str .= " months ago";
 895        } elsif ($age > 60*60*24*7*2) {
 896                $age_str = int $age/60/60/24/7;
 897                $age_str .= " weeks ago";
 898        } elsif ($age > 60*60*24*2) {
 899                $age_str = int $age/60/60/24;
 900                $age_str .= " days ago";
 901        } elsif ($age > 60*60*2) {
 902                $age_str = int $age/60/60;
 903                $age_str .= " hours ago";
 904        } elsif ($age > 60*2) {
 905                $age_str = int $age/60;
 906                $age_str .= " min ago";
 907        } elsif ($age > 2) {
 908                $age_str = int $age;
 909                $age_str .= " sec ago";
 910        } else {
 911                $age_str .= " right now";
 912        }
 913        return $age_str;
 914}
 915
 916use constant {
 917        S_IFINVALID => 0030000,
 918        S_IFGITLINK => 0160000,
 919};
 920
 921# submodule/subproject, a commit object reference
 922sub S_ISGITLINK($) {
 923        my $mode = shift;
 924
 925        return (($mode & S_IFMT) == S_IFGITLINK)
 926}
 927
 928# convert file mode in octal to symbolic file mode string
 929sub mode_str {
 930        my $mode = oct shift;
 931
 932        if (S_ISGITLINK($mode)) {
 933                return 'm---------';
 934        } elsif (S_ISDIR($mode & S_IFMT)) {
 935                return 'drwxr-xr-x';
 936        } elsif (S_ISLNK($mode)) {
 937                return 'lrwxrwxrwx';
 938        } elsif (S_ISREG($mode)) {
 939                # git cares only about the executable bit
 940                if ($mode & S_IXUSR) {
 941                        return '-rwxr-xr-x';
 942                } else {
 943                        return '-rw-r--r--';
 944                };
 945        } else {
 946                return '----------';
 947        }
 948}
 949
 950# convert file mode in octal to file type string
 951sub file_type {
 952        my $mode = shift;
 953
 954        if ($mode !~ m/^[0-7]+$/) {
 955                return $mode;
 956        } else {
 957                $mode = oct $mode;
 958        }
 959
 960        if (S_ISGITLINK($mode)) {
 961                return "submodule";
 962        } elsif (S_ISDIR($mode & S_IFMT)) {
 963                return "directory";
 964        } elsif (S_ISLNK($mode)) {
 965                return "symlink";
 966        } elsif (S_ISREG($mode)) {
 967                return "file";
 968        } else {
 969                return "unknown";
 970        }
 971}
 972
 973# convert file mode in octal to file type description string
 974sub file_type_long {
 975        my $mode = shift;
 976
 977        if ($mode !~ m/^[0-7]+$/) {
 978                return $mode;
 979        } else {
 980                $mode = oct $mode;
 981        }
 982
 983        if (S_ISGITLINK($mode)) {
 984                return "submodule";
 985        } elsif (S_ISDIR($mode & S_IFMT)) {
 986                return "directory";
 987        } elsif (S_ISLNK($mode)) {
 988                return "symlink";
 989        } elsif (S_ISREG($mode)) {
 990                if ($mode & S_IXUSR) {
 991                        return "executable";
 992                } else {
 993                        return "file";
 994                };
 995        } else {
 996                return "unknown";
 997        }
 998}
 999
1000
1001## ----------------------------------------------------------------------
1002## functions returning short HTML fragments, or transforming HTML fragments
1003## which don't belong to other sections
1004
1005# format line of commit message.
1006sub format_log_line_html {
1007        my $line = shift;
1008
1009        $line = esc_html($line, -nbsp=>1);
1010        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
1011                my $hash_text = $1;
1012                my $link =
1013                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
1014                                -class => "text"}, $hash_text);
1015                $line =~ s/$hash_text/$link/;
1016        }
1017        return $line;
1018}
1019
1020# format marker of refs pointing to given object
1021sub format_ref_marker {
1022        my ($refs, $id) = @_;
1023        my $markers = '';
1024
1025        if (defined $refs->{$id}) {
1026                foreach my $ref (@{$refs->{$id}}) {
1027                        my ($type, $name) = qw();
1028                        # e.g. tags/v2.6.11 or heads/next
1029                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
1030                                $type = $1;
1031                                $name = $2;
1032                        } else {
1033                                $type = "ref";
1034                                $name = $ref;
1035                        }
1036
1037                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
1038                                    esc_html($name) . "</span>";
1039                }
1040        }
1041
1042        if ($markers) {
1043                return ' <span class="refs">'. $markers . '</span>';
1044        } else {
1045                return "";
1046        }
1047}
1048
1049# format, perhaps shortened and with markers, title line
1050sub format_subject_html {
1051        my ($long, $short, $href, $extra) = @_;
1052        $extra = '' unless defined($extra);
1053
1054        if (length($short) < length($long)) {
1055                return $cgi->a({-href => $href, -class => "list subject",
1056                                -title => to_utf8($long)},
1057                       esc_html($short) . $extra);
1058        } else {
1059                return $cgi->a({-href => $href, -class => "list subject"},
1060                       esc_html($long)  . $extra);
1061        }
1062}
1063
1064# format git diff header line, i.e. "diff --(git|combined|cc) ..."
1065sub format_git_diff_header_line {
1066        my $line = shift;
1067        my $diffinfo = shift;
1068        my ($from, $to) = @_;
1069
1070        if ($diffinfo->{'nparents'}) {
1071                # combined diff
1072                $line =~ s!^(diff (.*?) )"?.*$!$1!;
1073                if ($to->{'href'}) {
1074                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1075                                         esc_path($to->{'file'}));
1076                } else { # file was deleted (no href)
1077                        $line .= esc_path($to->{'file'});
1078                }
1079        } else {
1080                # "ordinary" diff
1081                $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
1082                if ($from->{'href'}) {
1083                        $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
1084                                         'a/' . esc_path($from->{'file'}));
1085                } else { # file was added (no href)
1086                        $line .= 'a/' . esc_path($from->{'file'});
1087                }
1088                $line .= ' ';
1089                if ($to->{'href'}) {
1090                        $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1091                                         'b/' . esc_path($to->{'file'}));
1092                } else { # file was deleted
1093                        $line .= 'b/' . esc_path($to->{'file'});
1094                }
1095        }
1096
1097        return "<div class=\"diff header\">$line</div>\n";
1098}
1099
1100# format extended diff header line, before patch itself
1101sub format_extended_diff_header_line {
1102        my $line = shift;
1103        my $diffinfo = shift;
1104        my ($from, $to) = @_;
1105
1106        # match <path>
1107        if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
1108                $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1109                                       esc_path($from->{'file'}));
1110        }
1111        if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
1112                $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1113                                 esc_path($to->{'file'}));
1114        }
1115        # match single <mode>
1116        if ($line =~ m/\s(\d{6})$/) {
1117                $line .= '<span class="info"> (' .
1118                         file_type_long($1) .
1119                         ')</span>';
1120        }
1121        # match <hash>
1122        if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
1123                # can match only for combined diff
1124                $line = 'index ';
1125                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1126                        if ($from->{'href'}[$i]) {
1127                                $line .= $cgi->a({-href=>$from->{'href'}[$i],
1128                                                  -class=>"hash"},
1129                                                 substr($diffinfo->{'from_id'}[$i],0,7));
1130                        } else {
1131                                $line .= '0' x 7;
1132                        }
1133                        # separator
1134                        $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
1135                }
1136                $line .= '..';
1137                if ($to->{'href'}) {
1138                        $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1139                                         substr($diffinfo->{'to_id'},0,7));
1140                } else {
1141                        $line .= '0' x 7;
1142                }
1143
1144        } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
1145                # can match only for ordinary diff
1146                my ($from_link, $to_link);
1147                if ($from->{'href'}) {
1148                        $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
1149                                             substr($diffinfo->{'from_id'},0,7));
1150                } else {
1151                        $from_link = '0' x 7;
1152                }
1153                if ($to->{'href'}) {
1154                        $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1155                                           substr($diffinfo->{'to_id'},0,7));
1156                } else {
1157                        $to_link = '0' x 7;
1158                }
1159                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
1160                $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
1161        }
1162
1163        return $line . "<br/>\n";
1164}
1165
1166# format from-file/to-file diff header
1167sub format_diff_from_to_header {
1168        my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
1169        my $line;
1170        my $result = '';
1171
1172        $line = $from_line;
1173        #assert($line =~ m/^---/) if DEBUG;
1174        # no extra formatting for "^--- /dev/null"
1175        if (! $diffinfo->{'nparents'}) {
1176                # ordinary (single parent) diff
1177                if ($line =~ m!^--- "?a/!) {
1178                        if ($from->{'href'}) {
1179                                $line = '--- a/' .
1180                                        $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1181                                                esc_path($from->{'file'}));
1182                        } else {
1183                                $line = '--- a/' .
1184                                        esc_path($from->{'file'});
1185                        }
1186                }
1187                $result .= qq!<div class="diff from_file">$line</div>\n!;
1188
1189        } else {
1190                # combined diff (merge commit)
1191                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1192                        if ($from->{'href'}[$i]) {
1193                                $line = '--- ' .
1194                                        $cgi->a({-href=>href(action=>"blobdiff",
1195                                                             hash_parent=>$diffinfo->{'from_id'}[$i],
1196                                                             hash_parent_base=>$parents[$i],
1197                                                             file_parent=>$from->{'file'}[$i],
1198                                                             hash=>$diffinfo->{'to_id'},
1199                                                             hash_base=>$hash,
1200                                                             file_name=>$to->{'file'}),
1201                                                 -class=>"path",
1202                                                 -title=>"diff" . ($i+1)},
1203                                                $i+1) .
1204                                        '/' .
1205                                        $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1206                                                esc_path($from->{'file'}[$i]));
1207                        } else {
1208                                $line = '--- /dev/null';
1209                        }
1210                        $result .= qq!<div class="diff from_file">$line</div>\n!;
1211                }
1212        }
1213
1214        $line = $to_line;
1215        #assert($line =~ m/^\+\+\+/) if DEBUG;
1216        # no extra formatting for "^+++ /dev/null"
1217        if ($line =~ m!^\+\+\+ "?b/!) {
1218                if ($to->{'href'}) {
1219                        $line = '+++ b/' .
1220                                $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1221                                        esc_path($to->{'file'}));
1222                } else {
1223                        $line = '+++ b/' .
1224                                esc_path($to->{'file'});
1225                }
1226        }
1227        $result .= qq!<div class="diff to_file">$line</div>\n!;
1228
1229        return $result;
1230}
1231
1232# create note for patch simplified by combined diff
1233sub format_diff_cc_simplified {
1234        my ($diffinfo, @parents) = @_;
1235        my $result = '';
1236
1237        $result .= "<div class=\"diff header\">" .
1238                   "diff --cc ";
1239        if (!is_deleted($diffinfo)) {
1240                $result .= $cgi->a({-href => href(action=>"blob",
1241                                                  hash_base=>$hash,
1242                                                  hash=>$diffinfo->{'to_id'},
1243                                                  file_name=>$diffinfo->{'to_file'}),
1244                                    -class => "path"},
1245                                   esc_path($diffinfo->{'to_file'}));
1246        } else {
1247                $result .= esc_path($diffinfo->{'to_file'});
1248        }
1249        $result .= "</div>\n" . # class="diff header"
1250                   "<div class=\"diff nodifferences\">" .
1251                   "Simple merge" .
1252                   "</div>\n"; # class="diff nodifferences"
1253
1254        return $result;
1255}
1256
1257# format patch (diff) line (not to be used for diff headers)
1258sub format_diff_line {
1259        my $line = shift;
1260        my ($from, $to) = @_;
1261        my $diff_class = "";
1262
1263        chomp $line;
1264
1265        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1266                # combined diff
1267                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1268                if ($line =~ m/^\@{3}/) {
1269                        $diff_class = " chunk_header";
1270                } elsif ($line =~ m/^\\/) {
1271                        $diff_class = " incomplete";
1272                } elsif ($prefix =~ tr/+/+/) {
1273                        $diff_class = " add";
1274                } elsif ($prefix =~ tr/-/-/) {
1275                        $diff_class = " rem";
1276                }
1277        } else {
1278                # assume ordinary diff
1279                my $char = substr($line, 0, 1);
1280                if ($char eq '+') {
1281                        $diff_class = " add";
1282                } elsif ($char eq '-') {
1283                        $diff_class = " rem";
1284                } elsif ($char eq '@') {
1285                        $diff_class = " chunk_header";
1286                } elsif ($char eq "\\") {
1287                        $diff_class = " incomplete";
1288                }
1289        }
1290        $line = untabify($line);
1291        if ($from && $to && $line =~ m/^\@{2} /) {
1292                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1293                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1294
1295                $from_lines = 0 unless defined $from_lines;
1296                $to_lines   = 0 unless defined $to_lines;
1297
1298                if ($from->{'href'}) {
1299                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1300                                             -class=>"list"}, $from_text);
1301                }
1302                if ($to->{'href'}) {
1303                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1304                                             -class=>"list"}, $to_text);
1305                }
1306                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1307                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1308                return "<div class=\"diff$diff_class\">$line</div>\n";
1309        } elsif ($from && $to && $line =~ m/^\@{3}/) {
1310                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1311                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1312
1313                @from_text = split(' ', $ranges);
1314                for (my $i = 0; $i < @from_text; ++$i) {
1315                        ($from_start[$i], $from_nlines[$i]) =
1316                                (split(',', substr($from_text[$i], 1)), 0);
1317                }
1318
1319                $to_text   = pop @from_text;
1320                $to_start  = pop @from_start;
1321                $to_nlines = pop @from_nlines;
1322
1323                $line = "<span class=\"chunk_info\">$prefix ";
1324                for (my $i = 0; $i < @from_text; ++$i) {
1325                        if ($from->{'href'}[$i]) {
1326                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1327                                                  -class=>"list"}, $from_text[$i]);
1328                        } else {
1329                                $line .= $from_text[$i];
1330                        }
1331                        $line .= " ";
1332                }
1333                if ($to->{'href'}) {
1334                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1335                                          -class=>"list"}, $to_text);
1336                } else {
1337                        $line .= $to_text;
1338                }
1339                $line .= " $prefix</span>" .
1340                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1341                return "<div class=\"diff$diff_class\">$line</div>\n";
1342        }
1343        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1344}
1345
1346# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
1347# linked.  Pass the hash of the tree/commit to snapshot.
1348sub format_snapshot_links {
1349        my ($hash) = @_;
1350        my @snapshot_fmts = gitweb_check_feature('snapshot');
1351        @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
1352        my $num_fmts = @snapshot_fmts;
1353        if ($num_fmts > 1) {
1354                # A parenthesized list of links bearing format names.
1355                # e.g. "snapshot (_tar.gz_ _zip_)"
1356                return "snapshot (" . join(' ', map
1357                        $cgi->a({
1358                                -href => href(
1359                                        action=>"snapshot",
1360                                        hash=>$hash,
1361                                        snapshot_format=>$_
1362                                )
1363                        }, $known_snapshot_formats{$_}{'display'})
1364                , @snapshot_fmts) . ")";
1365        } elsif ($num_fmts == 1) {
1366                # A single "snapshot" link whose tooltip bears the format name.
1367                # i.e. "_snapshot_"
1368                my ($fmt) = @snapshot_fmts;
1369                return
1370                        $cgi->a({
1371                                -href => href(
1372                                        action=>"snapshot",
1373                                        hash=>$hash,
1374                                        snapshot_format=>$fmt
1375                                ),
1376                                -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
1377                        }, "snapshot");
1378        } else { # $num_fmts == 0
1379                return undef;
1380        }
1381}
1382
1383## ----------------------------------------------------------------------
1384## git utility subroutines, invoking git commands
1385
1386# returns path to the core git executable and the --git-dir parameter as list
1387sub git_cmd {
1388        return $GIT, '--git-dir='.$git_dir;
1389}
1390
1391# returns path to the core git executable and the --git-dir parameter as string
1392sub git_cmd_str {
1393        return join(' ', git_cmd());
1394}
1395
1396# get HEAD ref of given project as hash
1397sub git_get_head_hash {
1398        my $project = shift;
1399        my $o_git_dir = $git_dir;
1400        my $retval = undef;
1401        $git_dir = "$projectroot/$project";
1402        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1403                my $head = <$fd>;
1404                close $fd;
1405                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1406                        $retval = $1;
1407                }
1408        }
1409        if (defined $o_git_dir) {
1410                $git_dir = $o_git_dir;
1411        }
1412        return $retval;
1413}
1414
1415# get type of given object
1416sub git_get_type {
1417        my $hash = shift;
1418
1419        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1420        my $type = <$fd>;
1421        close $fd or return;
1422        chomp $type;
1423        return $type;
1424}
1425
1426sub git_get_project_config {
1427        my ($key, $type) = @_;
1428
1429        return unless ($key);
1430        $key =~ s/^gitweb\.//;
1431        return if ($key =~ m/\W/);
1432
1433        my @x = (git_cmd(), 'config');
1434        if (defined $type) { push @x, $type; }
1435        push @x, "--get";
1436        push @x, "gitweb.$key";
1437        my $val = qx(@x);
1438        chomp $val;
1439        return ($val);
1440}
1441
1442# get hash of given path at given ref
1443sub git_get_hash_by_path {
1444        my $base = shift;
1445        my $path = shift || return undef;
1446        my $type = shift;
1447
1448        $path =~ s,/+$,,;
1449
1450        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1451                or die_error(undef, "Open git-ls-tree failed");
1452        my $line = <$fd>;
1453        close $fd or return undef;
1454
1455        if (!defined $line) {
1456                # there is no tree or hash given by $path at $base
1457                return undef;
1458        }
1459
1460        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1461        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1462        if (defined $type && $type ne $2) {
1463                # type doesn't match
1464                return undef;
1465        }
1466        return $3;
1467}
1468
1469# get path of entry with given hash at given tree-ish (ref)
1470# used to get 'from' filename for combined diff (merge commit) for renames
1471sub git_get_path_by_hash {
1472        my $base = shift || return;
1473        my $hash = shift || return;
1474
1475        local $/ = "\0";
1476
1477        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1478                or return undef;
1479        while (my $line = <$fd>) {
1480                chomp $line;
1481
1482                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1483                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1484                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1485                        close $fd;
1486                        return $1;
1487                }
1488        }
1489        close $fd;
1490        return undef;
1491}
1492
1493## ......................................................................
1494## git utility functions, directly accessing git repository
1495
1496sub git_get_project_description {
1497        my $path = shift;
1498
1499        open my $fd, "$projectroot/$path/description" or return undef;
1500        my $descr = <$fd>;
1501        close $fd;
1502        if (defined $descr) {
1503                chomp $descr;
1504        }
1505        return $descr;
1506}
1507
1508sub git_get_project_url_list {
1509        my $path = shift;
1510
1511        open my $fd, "$projectroot/$path/cloneurl" or return;
1512        my @git_project_url_list = map { chomp; $_ } <$fd>;
1513        close $fd;
1514
1515        return wantarray ? @git_project_url_list : \@git_project_url_list;
1516}
1517
1518sub git_get_projects_list {
1519        my ($filter) = @_;
1520        my @list;
1521
1522        $filter ||= '';
1523        $filter =~ s/\.git$//;
1524
1525        my ($check_forks) = gitweb_check_feature('forks');
1526
1527        if (-d $projects_list) {
1528                # search in directory
1529                my $dir = $projects_list . ($filter ? "/$filter" : '');
1530                # remove the trailing "/"
1531                $dir =~ s!/+$!!;
1532                my $pfxlen = length("$dir");
1533                my $pfxdepth = ($dir =~ tr!/!!);
1534
1535                File::Find::find({
1536                        follow_fast => 1, # follow symbolic links
1537                        follow_skip => 2, # ignore duplicates
1538                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1539                        wanted => sub {
1540                                # skip project-list toplevel, if we get it.
1541                                return if (m!^[/.]$!);
1542                                # only directories can be git repositories
1543                                return unless (-d $_);
1544                                # don't traverse too deep (Find is super slow on os x)
1545                                if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1546                                        $File::Find::prune = 1;
1547                                        return;
1548                                }
1549
1550                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1551                                # we check related file in $projectroot
1552                                if ($check_forks and $subdir =~ m#/.#) {
1553                                        $File::Find::prune = 1;
1554                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1555                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1556                                        $File::Find::prune = 1;
1557                                }
1558                        },
1559                }, "$dir");
1560
1561        } elsif (-f $projects_list) {
1562                # read from file(url-encoded):
1563                # 'git%2Fgit.git Linus+Torvalds'
1564                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1565                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1566                my %paths;
1567                open my ($fd), $projects_list or return;
1568        PROJECT:
1569                while (my $line = <$fd>) {
1570                        chomp $line;
1571                        my ($path, $owner) = split ' ', $line;
1572                        $path = unescape($path);
1573                        $owner = unescape($owner);
1574                        if (!defined $path) {
1575                                next;
1576                        }
1577                        if ($filter ne '') {
1578                                # looking for forks;
1579                                my $pfx = substr($path, 0, length($filter));
1580                                if ($pfx ne $filter) {
1581                                        next PROJECT;
1582                                }
1583                                my $sfx = substr($path, length($filter));
1584                                if ($sfx !~ /^\/.*\.git$/) {
1585                                        next PROJECT;
1586                                }
1587                        } elsif ($check_forks) {
1588                        PATH:
1589                                foreach my $filter (keys %paths) {
1590                                        # looking for forks;
1591                                        my $pfx = substr($path, 0, length($filter));
1592                                        if ($pfx ne $filter) {
1593                                                next PATH;
1594                                        }
1595                                        my $sfx = substr($path, length($filter));
1596                                        if ($sfx !~ /^\/.*\.git$/) {
1597                                                next PATH;
1598                                        }
1599                                        # is a fork, don't include it in
1600                                        # the list
1601                                        next PROJECT;
1602                                }
1603                        }
1604                        if (check_export_ok("$projectroot/$path")) {
1605                                my $pr = {
1606                                        path => $path,
1607                                        owner => to_utf8($owner),
1608                                };
1609                                push @list, $pr;
1610                                (my $forks_path = $path) =~ s/\.git$//;
1611                                $paths{$forks_path}++;
1612                        }
1613                }
1614                close $fd;
1615        }
1616        return @list;
1617}
1618
1619our $gitweb_project_owner = undef;
1620sub git_get_project_list_from_file {
1621
1622        return if (defined $gitweb_project_owner);
1623
1624        $gitweb_project_owner = {};
1625        # read from file (url-encoded):
1626        # 'git%2Fgit.git Linus+Torvalds'
1627        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1628        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1629        if (-f $projects_list) {
1630                open (my $fd , $projects_list);
1631                while (my $line = <$fd>) {
1632                        chomp $line;
1633                        my ($pr, $ow) = split ' ', $line;
1634                        $pr = unescape($pr);
1635                        $ow = unescape($ow);
1636                        $gitweb_project_owner->{$pr} = to_utf8($ow);
1637                }
1638                close $fd;
1639        }
1640}
1641
1642sub git_get_project_owner {
1643        my $project = shift;
1644        my $owner;
1645
1646        return undef unless $project;
1647
1648        if (!defined $gitweb_project_owner) {
1649                git_get_project_list_from_file();
1650        }
1651
1652        if (exists $gitweb_project_owner->{$project}) {
1653                $owner = $gitweb_project_owner->{$project};
1654        }
1655        if (!defined $owner) {
1656                $owner = get_file_owner("$projectroot/$project");
1657        }
1658
1659        return $owner;
1660}
1661
1662sub git_get_last_activity {
1663        my ($path) = @_;
1664        my $fd;
1665
1666        $git_dir = "$projectroot/$path";
1667        open($fd, "-|", git_cmd(), 'for-each-ref',
1668             '--format=%(committer)',
1669             '--sort=-committerdate',
1670             '--count=1',
1671             'refs/heads') or return;
1672        my $most_recent = <$fd>;
1673        close $fd or return;
1674        if (defined $most_recent &&
1675            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1676                my $timestamp = $1;
1677                my $age = time - $timestamp;
1678                return ($age, age_string($age));
1679        }
1680        return (undef, undef);
1681}
1682
1683sub git_get_references {
1684        my $type = shift || "";
1685        my %refs;
1686        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1687        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1688        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1689                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1690                or return;
1691
1692        while (my $line = <$fd>) {
1693                chomp $line;
1694                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1695                        if (defined $refs{$1}) {
1696                                push @{$refs{$1}}, $2;
1697                        } else {
1698                                $refs{$1} = [ $2 ];
1699                        }
1700                }
1701        }
1702        close $fd or return;
1703        return \%refs;
1704}
1705
1706sub git_get_rev_name_tags {
1707        my $hash = shift || return undef;
1708
1709        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1710                or return;
1711        my $name_rev = <$fd>;
1712        close $fd;
1713
1714        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1715                return $1;
1716        } else {
1717                # catches also '$hash undefined' output
1718                return undef;
1719        }
1720}
1721
1722## ----------------------------------------------------------------------
1723## parse to hash functions
1724
1725sub parse_date {
1726        my $epoch = shift;
1727        my $tz = shift || "-0000";
1728
1729        my %date;
1730        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1731        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1732        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1733        $date{'hour'} = $hour;
1734        $date{'minute'} = $min;
1735        $date{'mday'} = $mday;
1736        $date{'day'} = $days[$wday];
1737        $date{'month'} = $months[$mon];
1738        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1739                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1740        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1741                             $mday, $months[$mon], $hour ,$min;
1742        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1743                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1744
1745        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1746        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1747        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1748        $date{'hour_local'} = $hour;
1749        $date{'minute_local'} = $min;
1750        $date{'tz_local'} = $tz;
1751        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1752                                  1900+$year, $mon+1, $mday,
1753                                  $hour, $min, $sec, $tz);
1754        return %date;
1755}
1756
1757sub parse_tag {
1758        my $tag_id = shift;
1759        my %tag;
1760        my @comment;
1761
1762        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1763        $tag{'id'} = $tag_id;
1764        while (my $line = <$fd>) {
1765                chomp $line;
1766                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1767                        $tag{'object'} = $1;
1768                } elsif ($line =~ m/^type (.+)$/) {
1769                        $tag{'type'} = $1;
1770                } elsif ($line =~ m/^tag (.+)$/) {
1771                        $tag{'name'} = $1;
1772                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1773                        $tag{'author'} = $1;
1774                        $tag{'epoch'} = $2;
1775                        $tag{'tz'} = $3;
1776                } elsif ($line =~ m/--BEGIN/) {
1777                        push @comment, $line;
1778                        last;
1779                } elsif ($line eq "") {
1780                        last;
1781                }
1782        }
1783        push @comment, <$fd>;
1784        $tag{'comment'} = \@comment;
1785        close $fd or return;
1786        if (!defined $tag{'name'}) {
1787                return
1788        };
1789        return %tag
1790}
1791
1792sub parse_commit_text {
1793        my ($commit_text, $withparents) = @_;
1794        my @commit_lines = split '\n', $commit_text;
1795        my %co;
1796
1797        pop @commit_lines; # Remove '\0'
1798
1799        if (! @commit_lines) {
1800                return;
1801        }
1802
1803        my $header = shift @commit_lines;
1804        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1805                return;
1806        }
1807        ($co{'id'}, my @parents) = split ' ', $header;
1808        while (my $line = shift @commit_lines) {
1809                last if $line eq "\n";
1810                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1811                        $co{'tree'} = $1;
1812                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1813                        push @parents, $1;
1814                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1815                        $co{'author'} = $1;
1816                        $co{'author_epoch'} = $2;
1817                        $co{'author_tz'} = $3;
1818                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1819                                $co{'author_name'}  = $1;
1820                                $co{'author_email'} = $2;
1821                        } else {
1822                                $co{'author_name'} = $co{'author'};
1823                        }
1824                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1825                        $co{'committer'} = $1;
1826                        $co{'committer_epoch'} = $2;
1827                        $co{'committer_tz'} = $3;
1828                        $co{'committer_name'} = $co{'committer'};
1829                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1830                                $co{'committer_name'}  = $1;
1831                                $co{'committer_email'} = $2;
1832                        } else {
1833                                $co{'committer_name'} = $co{'committer'};
1834                        }
1835                }
1836        }
1837        if (!defined $co{'tree'}) {
1838                return;
1839        };
1840        $co{'parents'} = \@parents;
1841        $co{'parent'} = $parents[0];
1842
1843        foreach my $title (@commit_lines) {
1844                $title =~ s/^    //;
1845                if ($title ne "") {
1846                        $co{'title'} = chop_str($title, 80, 5);
1847                        # remove leading stuff of merges to make the interesting part visible
1848                        if (length($title) > 50) {
1849                                $title =~ s/^Automatic //;
1850                                $title =~ s/^merge (of|with) /Merge ... /i;
1851                                if (length($title) > 50) {
1852                                        $title =~ s/(http|rsync):\/\///;
1853                                }
1854                                if (length($title) > 50) {
1855                                        $title =~ s/(master|www|rsync)\.//;
1856                                }
1857                                if (length($title) > 50) {
1858                                        $title =~ s/kernel.org:?//;
1859                                }
1860                                if (length($title) > 50) {
1861                                        $title =~ s/\/pub\/scm//;
1862                                }
1863                        }
1864                        $co{'title_short'} = chop_str($title, 50, 5);
1865                        last;
1866                }
1867        }
1868        if ($co{'title'} eq "") {
1869                $co{'title'} = $co{'title_short'} = '(no commit message)';
1870        }
1871        # remove added spaces
1872        foreach my $line (@commit_lines) {
1873                $line =~ s/^    //;
1874        }
1875        $co{'comment'} = \@commit_lines;
1876
1877        my $age = time - $co{'committer_epoch'};
1878        $co{'age'} = $age;
1879        $co{'age_string'} = age_string($age);
1880        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1881        if ($age > 60*60*24*7*2) {
1882                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1883                $co{'age_string_age'} = $co{'age_string'};
1884        } else {
1885                $co{'age_string_date'} = $co{'age_string'};
1886                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1887        }
1888        return %co;
1889}
1890
1891sub parse_commit {
1892        my ($commit_id) = @_;
1893        my %co;
1894
1895        local $/ = "\0";
1896
1897        open my $fd, "-|", git_cmd(), "rev-list",
1898                "--parents",
1899                "--header",
1900                "--max-count=1",
1901                $commit_id,
1902                "--",
1903                or die_error(undef, "Open git-rev-list failed");
1904        %co = parse_commit_text(<$fd>, 1);
1905        close $fd;
1906
1907        return %co;
1908}
1909
1910sub parse_commits {
1911        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1912        my @cos;
1913
1914        $maxcount ||= 1;
1915        $skip ||= 0;
1916
1917        local $/ = "\0";
1918
1919        open my $fd, "-|", git_cmd(), "rev-list",
1920                "--header",
1921                ($arg ? ($arg) : ()),
1922                ("--max-count=" . $maxcount),
1923                ("--skip=" . $skip),
1924                @extra_options,
1925                $commit_id,
1926                "--",
1927                ($filename ? ($filename) : ())
1928                or die_error(undef, "Open git-rev-list failed");
1929        while (my $line = <$fd>) {
1930                my %co = parse_commit_text($line);
1931                push @cos, \%co;
1932        }
1933        close $fd;
1934
1935        return wantarray ? @cos : \@cos;
1936}
1937
1938# parse ref from ref_file, given by ref_id, with given type
1939sub parse_ref {
1940        my $ref_file = shift;
1941        my $ref_id = shift;
1942        my $type = shift || git_get_type($ref_id);
1943        my %ref_item;
1944
1945        $ref_item{'type'} = $type;
1946        $ref_item{'id'} = $ref_id;
1947        $ref_item{'epoch'} = 0;
1948        $ref_item{'age'} = "unknown";
1949        if ($type eq "tag") {
1950                my %tag = parse_tag($ref_id);
1951                $ref_item{'comment'} = $tag{'comment'};
1952                if ($tag{'type'} eq "commit") {
1953                        my %co = parse_commit($tag{'object'});
1954                        $ref_item{'epoch'} = $co{'committer_epoch'};
1955                        $ref_item{'age'} = $co{'age_string'};
1956                } elsif (defined($tag{'epoch'})) {
1957                        my $age = time - $tag{'epoch'};
1958                        $ref_item{'epoch'} = $tag{'epoch'};
1959                        $ref_item{'age'} = age_string($age);
1960                }
1961                $ref_item{'reftype'} = $tag{'type'};
1962                $ref_item{'name'} = $tag{'name'};
1963                $ref_item{'refid'} = $tag{'object'};
1964        } elsif ($type eq "commit"){
1965                my %co = parse_commit($ref_id);
1966                $ref_item{'reftype'} = "commit";
1967                $ref_item{'name'} = $ref_file;
1968                $ref_item{'title'} = $co{'title'};
1969                $ref_item{'refid'} = $ref_id;
1970                $ref_item{'epoch'} = $co{'committer_epoch'};
1971                $ref_item{'age'} = $co{'age_string'};
1972        } else {
1973                $ref_item{'reftype'} = $type;
1974                $ref_item{'name'} = $ref_file;
1975                $ref_item{'refid'} = $ref_id;
1976        }
1977
1978        return %ref_item;
1979}
1980
1981# parse line of git-diff-tree "raw" output
1982sub parse_difftree_raw_line {
1983        my $line = shift;
1984        my %res;
1985
1986        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1987        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1988        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1989                $res{'from_mode'} = $1;
1990                $res{'to_mode'} = $2;
1991                $res{'from_id'} = $3;
1992                $res{'to_id'} = $4;
1993                $res{'status'} = $5;
1994                $res{'similarity'} = $6;
1995                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1996                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1997                } else {
1998                        $res{'file'} = unquote($7);
1999                }
2000        }
2001        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
2002        # combined diff (for merge commit)
2003        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
2004                $res{'nparents'}  = length($1);
2005                $res{'from_mode'} = [ split(' ', $2) ];
2006                $res{'to_mode'} = pop @{$res{'from_mode'}};
2007                $res{'from_id'} = [ split(' ', $3) ];
2008                $res{'to_id'} = pop @{$res{'from_id'}};
2009                $res{'status'} = [ split('', $4) ];
2010                $res{'to_file'} = unquote($5);
2011        }
2012        # 'c512b523472485aef4fff9e57b229d9d243c967f'
2013        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
2014                $res{'commit'} = $1;
2015        }
2016
2017        return wantarray ? %res : \%res;
2018}
2019
2020# wrapper: return parsed line of git-diff-tree "raw" output
2021# (the argument might be raw line, or parsed info)
2022sub parsed_difftree_line {
2023        my $line_or_ref = shift;
2024
2025        if (ref($line_or_ref) eq "HASH") {
2026                # pre-parsed (or generated by hand)
2027                return $line_or_ref;
2028        } else {
2029                return parse_difftree_raw_line($line_or_ref);
2030        }
2031}
2032
2033# parse line of git-ls-tree output
2034sub parse_ls_tree_line ($;%) {
2035        my $line = shift;
2036        my %opts = @_;
2037        my %res;
2038
2039        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
2040        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2041
2042        $res{'mode'} = $1;
2043        $res{'type'} = $2;
2044        $res{'hash'} = $3;
2045        if ($opts{'-z'}) {
2046                $res{'name'} = $4;
2047        } else {
2048                $res{'name'} = unquote($4);
2049        }
2050
2051        return wantarray ? %res : \%res;
2052}
2053
2054# generates _two_ hashes, references to which are passed as 2 and 3 argument
2055sub parse_from_to_diffinfo {
2056        my ($diffinfo, $from, $to, @parents) = @_;
2057
2058        if ($diffinfo->{'nparents'}) {
2059                # combined diff
2060                $from->{'file'} = [];
2061                $from->{'href'} = [];
2062                fill_from_file_info($diffinfo, @parents)
2063                        unless exists $diffinfo->{'from_file'};
2064                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2065                        $from->{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2066                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2067                                $from->{'href'}[$i] = href(action=>"blob",
2068                                                           hash_base=>$parents[$i],
2069                                                           hash=>$diffinfo->{'from_id'}[$i],
2070                                                           file_name=>$from->{'file'}[$i]);
2071                        } else {
2072                                $from->{'href'}[$i] = undef;
2073                        }
2074                }
2075        } else {
2076                # ordinary (not combined) diff
2077                $from->{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2078                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2079                        $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2080                                               hash=>$diffinfo->{'from_id'},
2081                                               file_name=>$from->{'file'});
2082                } else {
2083                        delete $from->{'href'};
2084                }
2085        }
2086
2087        $to->{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
2088        if (!is_deleted($diffinfo)) { # file exists in result
2089                $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2090                                     hash=>$diffinfo->{'to_id'},
2091                                     file_name=>$to->{'file'});
2092        } else {
2093                delete $to->{'href'};
2094        }
2095}
2096
2097## ......................................................................
2098## parse to array of hashes functions
2099
2100sub git_get_heads_list {
2101        my $limit = shift;
2102        my @headslist;
2103
2104        open my $fd, '-|', git_cmd(), 'for-each-ref',
2105                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2106                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2107                'refs/heads'
2108                or return;
2109        while (my $line = <$fd>) {
2110                my %ref_item;
2111
2112                chomp $line;
2113                my ($refinfo, $committerinfo) = split(/\0/, $line);
2114                my ($hash, $name, $title) = split(' ', $refinfo, 3);
2115                my ($committer, $epoch, $tz) =
2116                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2117                $name =~ s!^refs/heads/!!;
2118
2119                $ref_item{'name'}  = $name;
2120                $ref_item{'id'}    = $hash;
2121                $ref_item{'title'} = $title || '(no commit message)';
2122                $ref_item{'epoch'} = $epoch;
2123                if ($epoch) {
2124                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2125                } else {
2126                        $ref_item{'age'} = "unknown";
2127                }
2128
2129                push @headslist, \%ref_item;
2130        }
2131        close $fd;
2132
2133        return wantarray ? @headslist : \@headslist;
2134}
2135
2136sub git_get_tags_list {
2137        my $limit = shift;
2138        my @tagslist;
2139
2140        open my $fd, '-|', git_cmd(), 'for-each-ref',
2141                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2142                '--format=%(objectname) %(objecttype) %(refname) '.
2143                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2144                'refs/tags'
2145                or return;
2146        while (my $line = <$fd>) {
2147                my %ref_item;
2148
2149                chomp $line;
2150                my ($refinfo, $creatorinfo) = split(/\0/, $line);
2151                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2152                my ($creator, $epoch, $tz) =
2153                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2154                $name =~ s!^refs/tags/!!;
2155
2156                $ref_item{'type'} = $type;
2157                $ref_item{'id'} = $id;
2158                $ref_item{'name'} = $name;
2159                if ($type eq "tag") {
2160                        $ref_item{'subject'} = $title;
2161                        $ref_item{'reftype'} = $reftype;
2162                        $ref_item{'refid'}   = $refid;
2163                } else {
2164                        $ref_item{'reftype'} = $type;
2165                        $ref_item{'refid'}   = $id;
2166                }
2167
2168                if ($type eq "tag" || $type eq "commit") {
2169                        $ref_item{'epoch'} = $epoch;
2170                        if ($epoch) {
2171                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2172                        } else {
2173                                $ref_item{'age'} = "unknown";
2174                        }
2175                }
2176
2177                push @tagslist, \%ref_item;
2178        }
2179        close $fd;
2180
2181        return wantarray ? @tagslist : \@tagslist;
2182}
2183
2184## ----------------------------------------------------------------------
2185## filesystem-related functions
2186
2187sub get_file_owner {
2188        my $path = shift;
2189
2190        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2191        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2192        if (!defined $gcos) {
2193                return undef;
2194        }
2195        my $owner = $gcos;
2196        $owner =~ s/[,;].*$//;
2197        return to_utf8($owner);
2198}
2199
2200## ......................................................................
2201## mimetype related functions
2202
2203sub mimetype_guess_file {
2204        my $filename = shift;
2205        my $mimemap = shift;
2206        -r $mimemap or return undef;
2207
2208        my %mimemap;
2209        open(MIME, $mimemap) or return undef;
2210        while (<MIME>) {
2211                next if m/^#/; # skip comments
2212                my ($mime, $exts) = split(/\t+/);
2213                if (defined $exts) {
2214                        my @exts = split(/\s+/, $exts);
2215                        foreach my $ext (@exts) {
2216                                $mimemap{$ext} = $mime;
2217                        }
2218                }
2219        }
2220        close(MIME);
2221
2222        $filename =~ /\.([^.]*)$/;
2223        return $mimemap{$1};
2224}
2225
2226sub mimetype_guess {
2227        my $filename = shift;
2228        my $mime;
2229        $filename =~ /\./ or return undef;
2230
2231        if ($mimetypes_file) {
2232                my $file = $mimetypes_file;
2233                if ($file !~ m!^/!) { # if it is relative path
2234                        # it is relative to project
2235                        $file = "$projectroot/$project/$file";
2236                }
2237                $mime = mimetype_guess_file($filename, $file);
2238        }
2239        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2240        return $mime;
2241}
2242
2243sub blob_mimetype {
2244        my $fd = shift;
2245        my $filename = shift;
2246
2247        if ($filename) {
2248                my $mime = mimetype_guess($filename);
2249                $mime and return $mime;
2250        }
2251
2252        # just in case
2253        return $default_blob_plain_mimetype unless $fd;
2254
2255        if (-T $fd) {
2256                return 'text/plain' .
2257                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2258        } elsif (! $filename) {
2259                return 'application/octet-stream';
2260        } elsif ($filename =~ m/\.png$/i) {
2261                return 'image/png';
2262        } elsif ($filename =~ m/\.gif$/i) {
2263                return 'image/gif';
2264        } elsif ($filename =~ m/\.jpe?g$/i) {
2265                return 'image/jpeg';
2266        } else {
2267                return 'application/octet-stream';
2268        }
2269}
2270
2271## ======================================================================
2272## functions printing HTML: header, footer, error page
2273
2274sub git_header_html {
2275        my $status = shift || "200 OK";
2276        my $expires = shift;
2277
2278        my $title = "$site_name";
2279        if (defined $project) {
2280                $title .= " - " . to_utf8($project);
2281                if (defined $action) {
2282                        $title .= "/$action";
2283                        if (defined $file_name) {
2284                                $title .= " - " . esc_path($file_name);
2285                                if ($action eq "tree" && $file_name !~ m|/$|) {
2286                                        $title .= "/";
2287                                }
2288                        }
2289                }
2290        }
2291        my $content_type;
2292        # require explicit support from the UA if we are to send the page as
2293        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2294        # we have to do this because MSIE sometimes globs '*/*', pretending to
2295        # support xhtml+xml but choking when it gets what it asked for.
2296        if (defined $cgi->http('HTTP_ACCEPT') &&
2297            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2298            $cgi->Accept('application/xhtml+xml') != 0) {
2299                $content_type = 'application/xhtml+xml';
2300        } else {
2301                $content_type = 'text/html';
2302        }
2303        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2304                           -status=> $status, -expires => $expires);
2305        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2306        print <<EOF;
2307<?xml version="1.0" encoding="utf-8"?>
2308<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2309<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2310<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2311<!-- git core binaries version $git_version -->
2312<head>
2313<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2314<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2315<meta name="robots" content="index, nofollow"/>
2316<title>$title</title>
2317EOF
2318# print out each stylesheet that exist
2319        if (defined $stylesheet) {
2320#provides backwards capability for those people who define style sheet in a config file
2321                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2322        } else {
2323                foreach my $stylesheet (@stylesheets) {
2324                        next unless $stylesheet;
2325                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2326                }
2327        }
2328        if (defined $project) {
2329                printf('<link rel="alternate" title="%s log RSS feed" '.
2330                       'href="%s" type="application/rss+xml" />'."\n",
2331                       esc_param($project), href(action=>"rss"));
2332                printf('<link rel="alternate" title="%s log RSS feed (no merges)" '.
2333                       'href="%s" type="application/rss+xml" />'."\n",
2334                       esc_param($project), href(action=>"rss",
2335                                                 extra_options=>"--no-merges"));
2336                printf('<link rel="alternate" title="%s log Atom feed" '.
2337                       'href="%s" type="application/atom+xml" />'."\n",
2338                       esc_param($project), href(action=>"atom"));
2339                printf('<link rel="alternate" title="%s log Atom feed (no merges)" '.
2340                       'href="%s" type="application/atom+xml" />'."\n",
2341                       esc_param($project), href(action=>"atom",
2342                                                 extra_options=>"--no-merges"));
2343        } else {
2344                printf('<link rel="alternate" title="%s projects list" '.
2345                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2346                       $site_name, href(project=>undef, action=>"project_index"));
2347                printf('<link rel="alternate" title="%s projects feeds" '.
2348                       'href="%s" type="text/x-opml"/>'."\n",
2349                       $site_name, href(project=>undef, action=>"opml"));
2350        }
2351        if (defined $favicon) {
2352                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2353        }
2354
2355        print "</head>\n" .
2356              "<body>\n";
2357
2358        if (-f $site_header) {
2359                open (my $fd, $site_header);
2360                print <$fd>;
2361                close $fd;
2362        }
2363
2364        print "<div class=\"page_header\">\n" .
2365              $cgi->a({-href => esc_url($logo_url),
2366                       -title => $logo_label},
2367                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2368        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2369        if (defined $project) {
2370                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2371                if (defined $action) {
2372                        print " / $action";
2373                }
2374                print "\n";
2375        }
2376        print "</div>\n";
2377
2378        my ($have_search) = gitweb_check_feature('search');
2379        if ((defined $project) && ($have_search)) {
2380                if (!defined $searchtext) {
2381                        $searchtext = "";
2382                }
2383                my $search_hash;
2384                if (defined $hash_base) {
2385                        $search_hash = $hash_base;
2386                } elsif (defined $hash) {
2387                        $search_hash = $hash;
2388                } else {
2389                        $search_hash = "HEAD";
2390                }
2391                my $action = $my_uri;
2392                my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2393                if ($use_pathinfo) {
2394                        $action .= "/$project";
2395                } else {
2396                        $cgi->param("p", $project);
2397                }
2398                $cgi->param("a", "search");
2399                $cgi->param("h", $search_hash);
2400                print $cgi->startform(-method => "get", -action => $action) .
2401                      "<div class=\"search\">\n" .
2402                      (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
2403                      $cgi->hidden(-name => "a") . "\n" .
2404                      $cgi->hidden(-name => "h") . "\n" .
2405                      $cgi->popup_menu(-name => 'st', -default => 'commit',
2406                                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2407                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2408                      " search:\n",
2409                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2410                      "</div>" .
2411                      $cgi->end_form() . "\n";
2412        }
2413}
2414
2415sub git_footer_html {
2416        print "<div class=\"page_footer\">\n";
2417        if (defined $project) {
2418                my $descr = git_get_project_description($project);
2419                if (defined $descr) {
2420                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2421                }
2422                print $cgi->a({-href => href(action=>"rss"),
2423                              -class => "rss_logo"}, "RSS") . " ";
2424                print $cgi->a({-href => href(action=>"atom"),
2425                              -class => "rss_logo"}, "Atom") . "\n";
2426        } else {
2427                print $cgi->a({-href => href(project=>undef, action=>"opml"),
2428                              -class => "rss_logo"}, "OPML") . " ";
2429                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2430                              -class => "rss_logo"}, "TXT") . "\n";
2431        }
2432        print "</div>\n" ;
2433
2434        if (-f $site_footer) {
2435                open (my $fd, $site_footer);
2436                print <$fd>;
2437                close $fd;
2438        }
2439
2440        print "</body>\n" .
2441              "</html>";
2442}
2443
2444sub die_error {
2445        my $status = shift || "403 Forbidden";
2446        my $error = shift || "Malformed query, file missing or permission denied";
2447
2448        git_header_html($status);
2449        print <<EOF;
2450<div class="page_body">
2451<br /><br />
2452$status - $error
2453<br />
2454</div>
2455EOF
2456        git_footer_html();
2457        exit;
2458}
2459
2460## ----------------------------------------------------------------------
2461## functions printing or outputting HTML: navigation
2462
2463sub git_print_page_nav {
2464        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2465        $extra = '' if !defined $extra; # pager or formats
2466
2467        my @navs = qw(summary shortlog log commit commitdiff tree);
2468        if ($suppress) {
2469                @navs = grep { $_ ne $suppress } @navs;
2470        }
2471
2472        my %arg = map { $_ => {action=>$_} } @navs;
2473        if (defined $head) {
2474                for (qw(commit commitdiff)) {
2475                        $arg{$_}{'hash'} = $head;
2476                }
2477                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2478                        for (qw(shortlog log)) {
2479                                $arg{$_}{'hash'} = $head;
2480                        }
2481                }
2482        }
2483        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2484        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2485
2486        print "<div class=\"page_nav\">\n" .
2487                (join " | ",
2488                 map { $_ eq $current ?
2489                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2490                 } @navs);
2491        print "<br/>\n$extra<br/>\n" .
2492              "</div>\n";
2493}
2494
2495sub format_paging_nav {
2496        my ($action, $hash, $head, $page, $nrevs) = @_;
2497        my $paging_nav;
2498
2499
2500        if ($hash ne $head || $page) {
2501                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2502        } else {
2503                $paging_nav .= "HEAD";
2504        }
2505
2506        if ($page > 0) {
2507                $paging_nav .= " &sdot; " .
2508                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2509                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2510        } else {
2511                $paging_nav .= " &sdot; prev";
2512        }
2513
2514        if ($nrevs >= (100 * ($page+1)-1)) {
2515                $paging_nav .= " &sdot; " .
2516                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2517                                 -accesskey => "n", -title => "Alt-n"}, "next");
2518        } else {
2519                $paging_nav .= " &sdot; next";
2520        }
2521
2522        return $paging_nav;
2523}
2524
2525## ......................................................................
2526## functions printing or outputting HTML: div
2527
2528sub git_print_header_div {
2529        my ($action, $title, $hash, $hash_base) = @_;
2530        my %args = ();
2531
2532        $args{'action'} = $action;
2533        $args{'hash'} = $hash if $hash;
2534        $args{'hash_base'} = $hash_base if $hash_base;
2535
2536        print "<div class=\"header\">\n" .
2537              $cgi->a({-href => href(%args), -class => "title"},
2538              $title ? $title : $action) .
2539              "\n</div>\n";
2540}
2541
2542#sub git_print_authorship (\%) {
2543sub git_print_authorship {
2544        my $co = shift;
2545
2546        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2547        print "<div class=\"author_date\">" .
2548              esc_html($co->{'author_name'}) .
2549              " [$ad{'rfc2822'}";
2550        if ($ad{'hour_local'} < 6) {
2551                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2552                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2553        } else {
2554                printf(" (%02d:%02d %s)",
2555                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2556        }
2557        print "]</div>\n";
2558}
2559
2560sub git_print_page_path {
2561        my $name = shift;
2562        my $type = shift;
2563        my $hb = shift;
2564
2565
2566        print "<div class=\"page_path\">";
2567        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2568                      -title => 'tree root'}, to_utf8("[$project]"));
2569        print " / ";
2570        if (defined $name) {
2571                my @dirname = split '/', $name;
2572                my $basename = pop @dirname;
2573                my $fullname = '';
2574
2575                foreach my $dir (@dirname) {
2576                        $fullname .= ($fullname ? '/' : '') . $dir;
2577                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2578                                                     hash_base=>$hb),
2579                                      -title => $fullname}, esc_path($dir));
2580                        print " / ";
2581                }
2582                if (defined $type && $type eq 'blob') {
2583                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2584                                                     hash_base=>$hb),
2585                                      -title => $name}, esc_path($basename));
2586                } elsif (defined $type && $type eq 'tree') {
2587                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2588                                                     hash_base=>$hb),
2589                                      -title => $name}, esc_path($basename));
2590                        print " / ";
2591                } else {
2592                        print esc_path($basename);
2593                }
2594        }
2595        print "<br/></div>\n";
2596}
2597
2598# sub git_print_log (\@;%) {
2599sub git_print_log ($;%) {
2600        my $log = shift;
2601        my %opts = @_;
2602
2603        if ($opts{'-remove_title'}) {
2604                # remove title, i.e. first line of log
2605                shift @$log;
2606        }
2607        # remove leading empty lines
2608        while (defined $log->[0] && $log->[0] eq "") {
2609                shift @$log;
2610        }
2611
2612        # print log
2613        my $signoff = 0;
2614        my $empty = 0;
2615        foreach my $line (@$log) {
2616                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2617                        $signoff = 1;
2618                        $empty = 0;
2619                        if (! $opts{'-remove_signoff'}) {
2620                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2621                                next;
2622                        } else {
2623                                # remove signoff lines
2624                                next;
2625                        }
2626                } else {
2627                        $signoff = 0;
2628                }
2629
2630                # print only one empty line
2631                # do not print empty line after signoff
2632                if ($line eq "") {
2633                        next if ($empty || $signoff);
2634                        $empty = 1;
2635                } else {
2636                        $empty = 0;
2637                }
2638
2639                print format_log_line_html($line) . "<br/>\n";
2640        }
2641
2642        if ($opts{'-final_empty_line'}) {
2643                # end with single empty line
2644                print "<br/>\n" unless $empty;
2645        }
2646}
2647
2648# return link target (what link points to)
2649sub git_get_link_target {
2650        my $hash = shift;
2651        my $link_target;
2652
2653        # read link
2654        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2655                or return;
2656        {
2657                local $/;
2658                $link_target = <$fd>;
2659        }
2660        close $fd
2661                or return;
2662
2663        return $link_target;
2664}
2665
2666# given link target, and the directory (basedir) the link is in,
2667# return target of link relative to top directory (top tree);
2668# return undef if it is not possible (including absolute links).
2669sub normalize_link_target {
2670        my ($link_target, $basedir, $hash_base) = @_;
2671
2672        # we can normalize symlink target only if $hash_base is provided
2673        return unless $hash_base;
2674
2675        # absolute symlinks (beginning with '/') cannot be normalized
2676        return if (substr($link_target, 0, 1) eq '/');
2677
2678        # normalize link target to path from top (root) tree (dir)
2679        my $path;
2680        if ($basedir) {
2681                $path = $basedir . '/' . $link_target;
2682        } else {
2683                # we are in top (root) tree (dir)
2684                $path = $link_target;
2685        }
2686
2687        # remove //, /./, and /../
2688        my @path_parts;
2689        foreach my $part (split('/', $path)) {
2690                # discard '.' and ''
2691                next if (!$part || $part eq '.');
2692                # handle '..'
2693                if ($part eq '..') {
2694                        if (@path_parts) {
2695                                pop @path_parts;
2696                        } else {
2697                                # link leads outside repository (outside top dir)
2698                                return;
2699                        }
2700                } else {
2701                        push @path_parts, $part;
2702                }
2703        }
2704        $path = join('/', @path_parts);
2705
2706        return $path;
2707}
2708
2709# print tree entry (row of git_tree), but without encompassing <tr> element
2710sub git_print_tree_entry {
2711        my ($t, $basedir, $hash_base, $have_blame) = @_;
2712
2713        my %base_key = ();
2714        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2715
2716        # The format of a table row is: mode list link.  Where mode is
2717        # the mode of the entry, list is the name of the entry, an href,
2718        # and link is the action links of the entry.
2719
2720        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2721        if ($t->{'type'} eq "blob") {
2722                print "<td class=\"list\">" .
2723                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2724                                               file_name=>"$basedir$t->{'name'}", %base_key),
2725                                -class => "list"}, esc_path($t->{'name'}));
2726                if (S_ISLNK(oct $t->{'mode'})) {
2727                        my $link_target = git_get_link_target($t->{'hash'});
2728                        if ($link_target) {
2729                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2730                                if (defined $norm_target) {
2731                                        print " -> " .
2732                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2733                                                                     file_name=>$norm_target),
2734                                                       -title => $norm_target}, esc_path($link_target));
2735                                } else {
2736                                        print " -> " . esc_path($link_target);
2737                                }
2738                        }
2739                }
2740                print "</td>\n";
2741                print "<td class=\"link\">";
2742                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2743                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2744                              "blob");
2745                if ($have_blame) {
2746                        print " | " .
2747                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2748                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2749                                      "blame");
2750                }
2751                if (defined $hash_base) {
2752                        print " | " .
2753                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2754                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2755                                      "history");
2756                }
2757                print " | " .
2758                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2759                                               file_name=>"$basedir$t->{'name'}")},
2760                                "raw");
2761                print "</td>\n";
2762
2763        } elsif ($t->{'type'} eq "tree") {
2764                print "<td class=\"list\">";
2765                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2766                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2767                              esc_path($t->{'name'}));
2768                print "</td>\n";
2769                print "<td class=\"link\">";
2770                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2771                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2772                              "tree");
2773                if (defined $hash_base) {
2774                        print " | " .
2775                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2776                                                     file_name=>"$basedir$t->{'name'}")},
2777                                      "history");
2778                }
2779                print "</td>\n";
2780        } else {
2781                # unknown object: we can only present history for it
2782                # (this includes 'commit' object, i.e. submodule support)
2783                print "<td class=\"list\">" .
2784                      esc_path($t->{'name'}) .
2785                      "</td>\n";
2786                print "<td class=\"link\">";
2787                if (defined $hash_base) {
2788                        print $cgi->a({-href => href(action=>"history",
2789                                                     hash_base=>$hash_base,
2790                                                     file_name=>"$basedir$t->{'name'}")},
2791                                      "history");
2792                }
2793                print "</td>\n";
2794        }
2795}
2796
2797## ......................................................................
2798## functions printing large fragments of HTML
2799
2800# get pre-image filenames for merge (combined) diff
2801sub fill_from_file_info {
2802        my ($diff, @parents) = @_;
2803
2804        $diff->{'from_file'} = [ ];
2805        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2806        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2807                if ($diff->{'status'}[$i] eq 'R' ||
2808                    $diff->{'status'}[$i] eq 'C') {
2809                        $diff->{'from_file'}[$i] =
2810                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2811                }
2812        }
2813
2814        return $diff;
2815}
2816
2817# is current raw difftree line of file deletion
2818sub is_deleted {
2819        my $diffinfo = shift;
2820
2821        return $diffinfo->{'to_id'} eq ('0' x 40);
2822}
2823
2824# does patch correspond to [previous] difftree raw line
2825# $diffinfo  - hashref of parsed raw diff format
2826# $patchinfo - hashref of parsed patch diff format
2827#              (the same keys as in $diffinfo)
2828sub is_patch_split {
2829        my ($diffinfo, $patchinfo) = @_;
2830
2831        return defined $diffinfo && defined $patchinfo
2832                && ($diffinfo->{'to_file'} || $diffinfo->{'file'}) eq $patchinfo->{'to_file'};
2833}
2834
2835
2836sub git_difftree_body {
2837        my ($difftree, $hash, @parents) = @_;
2838        my ($parent) = $parents[0];
2839        my ($have_blame) = gitweb_check_feature('blame');
2840        print "<div class=\"list_head\">\n";
2841        if ($#{$difftree} > 10) {
2842                print(($#{$difftree} + 1) . " files changed:\n");
2843        }
2844        print "</div>\n";
2845
2846        print "<table class=\"" .
2847              (@parents > 1 ? "combined " : "") .
2848              "diff_tree\">\n";
2849
2850        # header only for combined diff in 'commitdiff' view
2851        my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
2852        if ($has_header) {
2853                # table header
2854                print "<thead><tr>\n" .
2855                       "<th></th><th></th>\n"; # filename, patchN link
2856                for (my $i = 0; $i < @parents; $i++) {
2857                        my $par = $parents[$i];
2858                        print "<th>" .
2859                              $cgi->a({-href => href(action=>"commitdiff",
2860                                                     hash=>$hash, hash_parent=>$par),
2861                                       -title => 'commitdiff to parent number ' .
2862                                                  ($i+1) . ': ' . substr($par,0,7)},
2863                                      $i+1) .
2864                              "&nbsp;</th>\n";
2865                }
2866                print "</tr></thead>\n<tbody>\n";
2867        }
2868
2869        my $alternate = 1;
2870        my $patchno = 0;
2871        foreach my $line (@{$difftree}) {
2872                my $diff = parsed_difftree_line($line);
2873
2874                if ($alternate) {
2875                        print "<tr class=\"dark\">\n";
2876                } else {
2877                        print "<tr class=\"light\">\n";
2878                }
2879                $alternate ^= 1;
2880
2881                if (exists $diff->{'nparents'}) { # combined diff
2882
2883                        fill_from_file_info($diff, @parents)
2884                                unless exists $diff->{'from_file'};
2885
2886                        if (!is_deleted($diff)) {
2887                                # file exists in the result (child) commit
2888                                print "<td>" .
2889                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2890                                                             file_name=>$diff->{'to_file'},
2891                                                             hash_base=>$hash),
2892                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2893                                      "</td>\n";
2894                        } else {
2895                                print "<td>" .
2896                                      esc_path($diff->{'to_file'}) .
2897                                      "</td>\n";
2898                        }
2899
2900                        if ($action eq 'commitdiff') {
2901                                # link to patch
2902                                $patchno++;
2903                                print "<td class=\"link\">" .
2904                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2905                                      " | " .
2906                                      "</td>\n";
2907                        }
2908
2909                        my $has_history = 0;
2910                        my $not_deleted = 0;
2911                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2912                                my $hash_parent = $parents[$i];
2913                                my $from_hash = $diff->{'from_id'}[$i];
2914                                my $from_path = $diff->{'from_file'}[$i];
2915                                my $status = $diff->{'status'}[$i];
2916
2917                                $has_history ||= ($status ne 'A');
2918                                $not_deleted ||= ($status ne 'D');
2919
2920                                if ($status eq 'A') {
2921                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2922                                } elsif ($status eq 'D') {
2923                                        print "<td class=\"link\">" .
2924                                              $cgi->a({-href => href(action=>"blob",
2925                                                                     hash_base=>$hash,
2926                                                                     hash=>$from_hash,
2927                                                                     file_name=>$from_path)},
2928                                                      "blob" . ($i+1)) .
2929                                              " | </td>\n";
2930                                } else {
2931                                        if ($diff->{'to_id'} eq $from_hash) {
2932                                                print "<td class=\"link nochange\">";
2933                                        } else {
2934                                                print "<td class=\"link\">";
2935                                        }
2936                                        print $cgi->a({-href => href(action=>"blobdiff",
2937                                                                     hash=>$diff->{'to_id'},
2938                                                                     hash_parent=>$from_hash,
2939                                                                     hash_base=>$hash,
2940                                                                     hash_parent_base=>$hash_parent,
2941                                                                     file_name=>$diff->{'to_file'},
2942                                                                     file_parent=>$from_path)},
2943                                                      "diff" . ($i+1)) .
2944                                              " | </td>\n";
2945                                }
2946                        }
2947
2948                        print "<td class=\"link\">";
2949                        if ($not_deleted) {
2950                                print $cgi->a({-href => href(action=>"blob",
2951                                                             hash=>$diff->{'to_id'},
2952                                                             file_name=>$diff->{'to_file'},
2953                                                             hash_base=>$hash)},
2954                                              "blob");
2955                                print " | " if ($has_history);
2956                        }
2957                        if ($has_history) {
2958                                print $cgi->a({-href => href(action=>"history",
2959                                                             file_name=>$diff->{'to_file'},
2960                                                             hash_base=>$hash)},
2961                                              "history");
2962                        }
2963                        print "</td>\n";
2964
2965                        print "</tr>\n";
2966                        next; # instead of 'else' clause, to avoid extra indent
2967                }
2968                # else ordinary diff
2969
2970                my ($to_mode_oct, $to_mode_str, $to_file_type);
2971                my ($from_mode_oct, $from_mode_str, $from_file_type);
2972                if ($diff->{'to_mode'} ne ('0' x 6)) {
2973                        $to_mode_oct = oct $diff->{'to_mode'};
2974                        if (S_ISREG($to_mode_oct)) { # only for regular file
2975                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2976                        }
2977                        $to_file_type = file_type($diff->{'to_mode'});
2978                }
2979                if ($diff->{'from_mode'} ne ('0' x 6)) {
2980                        $from_mode_oct = oct $diff->{'from_mode'};
2981                        if (S_ISREG($to_mode_oct)) { # only for regular file
2982                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2983                        }
2984                        $from_file_type = file_type($diff->{'from_mode'});
2985                }
2986
2987                if ($diff->{'status'} eq "A") { # created
2988                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2989                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2990                        $mode_chng   .= "]</span>";
2991                        print "<td>";
2992                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2993                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2994                                      -class => "list"}, esc_path($diff->{'file'}));
2995                        print "</td>\n";
2996                        print "<td>$mode_chng</td>\n";
2997                        print "<td class=\"link\">";
2998                        if ($action eq 'commitdiff') {
2999                                # link to patch
3000                                $patchno++;
3001                                print $cgi->a({-href => "#patch$patchno"}, "patch");
3002                                print " | ";
3003                        }
3004                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3005                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3006                                      "blob");
3007                        print "</td>\n";
3008
3009                } elsif ($diff->{'status'} eq "D") { # deleted
3010                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
3011                        print "<td>";
3012                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3013                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
3014                                       -class => "list"}, esc_path($diff->{'file'}));
3015                        print "</td>\n";
3016                        print "<td>$mode_chng</td>\n";
3017                        print "<td class=\"link\">";
3018                        if ($action eq 'commitdiff') {
3019                                # link to patch
3020                                $patchno++;
3021                                print $cgi->a({-href => "#patch$patchno"}, "patch");
3022                                print " | ";
3023                        }
3024                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3025                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
3026                                      "blob") . " | ";
3027                        if ($have_blame) {
3028                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3029                                                             file_name=>$diff->{'file'})},
3030                                              "blame") . " | ";
3031                        }
3032                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3033                                                     file_name=>$diff->{'file'})},
3034                                      "history");
3035                        print "</td>\n";
3036
3037                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3038                        my $mode_chnge = "";
3039                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3040                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3041                                if ($from_file_type ne $to_file_type) {
3042                                        $mode_chnge .= " from $from_file_type to $to_file_type";
3043                                }
3044                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3045                                        if ($from_mode_str && $to_mode_str) {
3046                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3047                                        } elsif ($to_mode_str) {
3048                                                $mode_chnge .= " mode: $to_mode_str";
3049                                        }
3050                                }
3051                                $mode_chnge .= "]</span>\n";
3052                        }
3053                        print "<td>";
3054                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3055                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
3056                                      -class => "list"}, esc_path($diff->{'file'}));
3057                        print "</td>\n";
3058                        print "<td>$mode_chnge</td>\n";
3059                        print "<td class=\"link\">";
3060                        if ($action eq 'commitdiff') {
3061                                # link to patch
3062                                $patchno++;
3063                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3064                                      " | ";
3065                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3066                                # "commit" view and modified file (not onlu mode changed)
3067                                print $cgi->a({-href => href(action=>"blobdiff",
3068                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3069                                                             hash_base=>$hash, hash_parent_base=>$parent,
3070                                                             file_name=>$diff->{'file'})},
3071                                              "diff") .
3072                                      " | ";
3073                        }
3074                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3075                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
3076                                       "blob") . " | ";
3077                        if ($have_blame) {
3078                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3079                                                             file_name=>$diff->{'file'})},
3080                                              "blame") . " | ";
3081                        }
3082                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3083                                                     file_name=>$diff->{'file'})},
3084                                      "history");
3085                        print "</td>\n";
3086
3087                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3088                        my %status_name = ('R' => 'moved', 'C' => 'copied');
3089                        my $nstatus = $status_name{$diff->{'status'}};
3090                        my $mode_chng = "";
3091                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3092                                # mode also for directories, so we cannot use $to_mode_str
3093                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3094                        }
3095                        print "<td>" .
3096                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3097                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3098                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3099                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3100                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3101                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3102                                      -class => "list"}, esc_path($diff->{'from_file'})) .
3103                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3104                              "<td class=\"link\">";
3105                        if ($action eq 'commitdiff') {
3106                                # link to patch
3107                                $patchno++;
3108                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
3109                                      " | ";
3110                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3111                                # "commit" view and modified file (not only pure rename or copy)
3112                                print $cgi->a({-href => href(action=>"blobdiff",
3113                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3114                                                             hash_base=>$hash, hash_parent_base=>$parent,
3115                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3116                                              "diff") .
3117                                      " | ";
3118                        }
3119                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3120                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
3121                                      "blob") . " | ";
3122                        if ($have_blame) {
3123                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3124                                                             file_name=>$diff->{'to_file'})},
3125                                              "blame") . " | ";
3126                        }
3127                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3128                                                    file_name=>$diff->{'to_file'})},
3129                                      "history");
3130                        print "</td>\n";
3131
3132                } # we should not encounter Unmerged (U) or Unknown (X) status
3133                print "</tr>\n";
3134        }
3135        print "</tbody>" if $has_header;
3136        print "</table>\n";
3137}
3138
3139sub git_patchset_body {
3140        my ($fd, $difftree, $hash, @hash_parents) = @_;
3141        my ($hash_parent) = $hash_parents[0];
3142
3143        my $is_combined = (@hash_parents > 1);
3144        my $patch_idx = 0;
3145        my $patch_number = 0;
3146        my $patch_line;
3147        my $diffinfo;
3148        my $to_name;
3149        my (%from, %to);
3150
3151        print "<div class=\"patchset\">\n";
3152
3153        # skip to first patch
3154        while ($patch_line = <$fd>) {
3155                chomp $patch_line;
3156
3157                last if ($patch_line =~ m/^diff /);
3158        }
3159
3160 PATCH:
3161        while ($patch_line) {
3162
3163                # parse "git diff" header line
3164                if ($patch_line =~ m/^diff --git (\"(?:[^\\\"]*(?:\\.[^\\\"]*)*)\"|[^ "]*) (.*)$/) {
3165                        # $1 is from_name, which we do not use
3166                        $to_name = unquote($2);
3167                        $to_name =~ s!^b/!!;
3168                } elsif ($patch_line =~ m/^diff --(cc|combined) ("?.*"?)$/) {
3169                        # $1 is 'cc' or 'combined', which we do not use
3170                        $to_name = unquote($2);
3171                } else {
3172                        $to_name = undef;
3173                }
3174
3175                # check if current patch belong to current raw line
3176                # and parse raw git-diff line if needed
3177                if (is_patch_split($diffinfo, { 'to_file' => $to_name })) {
3178                        # this is continuation of a split patch
3179                        print "<div class=\"patch cont\">\n";
3180                } else {
3181                        # advance raw git-diff output if needed
3182                        $patch_idx++ if defined $diffinfo;
3183
3184                        # read and prepare patch information
3185                        $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3186
3187                        # compact combined diff output can have some patches skipped
3188                        # find which patch (using pathname of result) we are at now;
3189                        if ($is_combined) {
3190                                while ($to_name ne $diffinfo->{'to_file'}) {
3191                                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3192                                              format_diff_cc_simplified($diffinfo, @hash_parents) .
3193                                              "</div>\n";  # class="patch"
3194
3195                                        $patch_idx++;
3196                                        $patch_number++;
3197
3198                                        last if $patch_idx > $#$difftree;
3199                                        $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3200                                }
3201                        }
3202
3203                        # modifies %from, %to hashes
3204                        parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
3205
3206                        # this is first patch for raw difftree line with $patch_idx index
3207                        # we index @$difftree array from 0, but number patches from 1
3208                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3209                }
3210
3211                # git diff header
3212                #assert($patch_line =~ m/^diff /) if DEBUG;
3213                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
3214                $patch_number++;
3215                # print "git diff" header
3216                print format_git_diff_header_line($patch_line, $diffinfo,
3217                                                  \%from, \%to);
3218
3219                # print extended diff header
3220                print "<div class=\"diff extended_header\">\n";
3221        EXTENDED_HEADER:
3222                while ($patch_line = <$fd>) {
3223                        chomp $patch_line;
3224
3225                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
3226
3227                        print format_extended_diff_header_line($patch_line, $diffinfo,
3228                                                               \%from, \%to);
3229                }
3230                print "</div>\n"; # class="diff extended_header"
3231
3232                # from-file/to-file diff header
3233                if (! $patch_line) {
3234                        print "</div>\n"; # class="patch"
3235                        last PATCH;
3236                }
3237                next PATCH if ($patch_line =~ m/^diff /);
3238                #assert($patch_line =~ m/^---/) if DEBUG;
3239
3240                my $last_patch_line = $patch_line;
3241                $patch_line = <$fd>;
3242                chomp $patch_line;
3243                #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3244
3245                print format_diff_from_to_header($last_patch_line, $patch_line,
3246                                                 $diffinfo, \%from, \%to,
3247                                                 @hash_parents);
3248
3249                # the patch itself
3250        LINE:
3251                while ($patch_line = <$fd>) {
3252                        chomp $patch_line;
3253
3254                        next PATCH if ($patch_line =~ m/^diff /);
3255
3256                        print format_diff_line($patch_line, \%from, \%to);
3257                }
3258
3259        } continue {
3260                print "</div>\n"; # class="patch"
3261        }
3262
3263        # for compact combined (--cc) format, with chunk and patch simpliciaction
3264        # patchset might be empty, but there might be unprocessed raw lines
3265        for (++$patch_idx if $patch_number > 0;
3266             $patch_idx < @$difftree;
3267             ++$patch_idx) {
3268                # read and prepare patch information
3269                $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3270
3271                # generate anchor for "patch" links in difftree / whatchanged part
3272                print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3273                      format_diff_cc_simplified($diffinfo, @hash_parents) .
3274                      "</div>\n";  # class="patch"
3275
3276                $patch_number++;
3277        }
3278
3279        if ($patch_number == 0) {
3280                if (@hash_parents > 1) {
3281                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3282                } else {
3283                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
3284                }
3285        }
3286
3287        print "</div>\n"; # class="patchset"
3288}
3289
3290# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3291
3292sub git_project_list_body {
3293        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3294
3295        my ($check_forks) = gitweb_check_feature('forks');
3296
3297        my @projects;
3298        foreach my $pr (@$projlist) {
3299                my (@aa) = git_get_last_activity($pr->{'path'});
3300                unless (@aa) {
3301                        next;
3302                }
3303                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3304                if (!defined $pr->{'descr'}) {
3305                        my $descr = git_get_project_description($pr->{'path'}) || "";
3306                        $pr->{'descr_long'} = to_utf8($descr);
3307                        $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
3308                }
3309                if (!defined $pr->{'owner'}) {
3310                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
3311                }
3312                if ($check_forks) {
3313                        my $pname = $pr->{'path'};
3314                        if (($pname =~ s/\.git$//) &&
3315                            ($pname !~ /\/$/) &&
3316                            (-d "$projectroot/$pname")) {
3317                                $pr->{'forks'} = "-d $projectroot/$pname";
3318                        }
3319                        else {
3320                                $pr->{'forks'} = 0;
3321                        }
3322                }
3323                push @projects, $pr;
3324        }
3325
3326        $order ||= $default_projects_order;
3327        $from = 0 unless defined $from;
3328        $to = $#projects if (!defined $to || $#projects < $to);
3329
3330        print "<table class=\"project_list\">\n";
3331        unless ($no_header) {
3332                print "<tr>\n";
3333                if ($check_forks) {
3334                        print "<th></th>\n";
3335                }
3336                if ($order eq "project") {
3337                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3338                        print "<th>Project</th>\n";
3339                } else {
3340                        print "<th>" .
3341                              $cgi->a({-href => href(project=>undef, order=>'project'),
3342                                       -class => "header"}, "Project") .
3343                              "</th>\n";
3344                }
3345                if ($order eq "descr") {
3346                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3347                        print "<th>Description</th>\n";
3348                } else {
3349                        print "<th>" .
3350                              $cgi->a({-href => href(project=>undef, order=>'descr'),
3351                                       -class => "header"}, "Description") .
3352                              "</th>\n";
3353                }
3354                if ($order eq "owner") {
3355                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3356                        print "<th>Owner</th>\n";
3357                } else {
3358                        print "<th>" .
3359                              $cgi->a({-href => href(project=>undef, order=>'owner'),
3360                                       -class => "header"}, "Owner") .
3361                              "</th>\n";
3362                }
3363                if ($order eq "age") {
3364                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3365                        print "<th>Last Change</th>\n";
3366                } else {
3367                        print "<th>" .
3368                              $cgi->a({-href => href(project=>undef, order=>'age'),
3369                                       -class => "header"}, "Last Change") .
3370                              "</th>\n";
3371                }
3372                print "<th></th>\n" .
3373                      "</tr>\n";
3374        }
3375        my $alternate = 1;
3376        for (my $i = $from; $i <= $to; $i++) {
3377                my $pr = $projects[$i];
3378                if ($alternate) {
3379                        print "<tr class=\"dark\">\n";
3380                } else {
3381                        print "<tr class=\"light\">\n";
3382                }
3383                $alternate ^= 1;
3384                if ($check_forks) {
3385                        print "<td>";
3386                        if ($pr->{'forks'}) {
3387                                print "<!-- $pr->{'forks'} -->\n";
3388                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3389                        }
3390                        print "</td>\n";
3391                }
3392                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3393                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3394                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3395                                        -class => "list", -title => $pr->{'descr_long'}},
3396                                        esc_html($pr->{'descr'})) . "</td>\n" .
3397                      "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
3398                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3399                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3400                      "<td class=\"link\">" .
3401                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3402                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3403                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3404                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3405                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3406                      "</td>\n" .
3407                      "</tr>\n";
3408        }
3409        if (defined $extra) {
3410                print "<tr>\n";
3411                if ($check_forks) {
3412                        print "<td></td>\n";
3413                }
3414                print "<td colspan=\"5\">$extra</td>\n" .
3415                      "</tr>\n";
3416        }
3417        print "</table>\n";
3418}
3419
3420sub git_shortlog_body {
3421        # uses global variable $project
3422        my ($commitlist, $from, $to, $refs, $extra) = @_;
3423
3424        $from = 0 unless defined $from;
3425        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3426
3427        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3428        my $alternate = 1;
3429        for (my $i = $from; $i <= $to; $i++) {
3430                my %co = %{$commitlist->[$i]};
3431                my $commit = $co{'id'};
3432                my $ref = format_ref_marker($refs, $commit);
3433                if ($alternate) {
3434                        print "<tr class=\"dark\">\n";
3435                } else {
3436                        print "<tr class=\"light\">\n";
3437                }
3438                $alternate ^= 1;
3439                my $author = chop_and_escape_str($co{'author_name'}, 10);
3440                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3441                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3442                      "<td><i>" . $author . "</i></td>\n" .
3443                      "<td>";
3444                print format_subject_html($co{'title'}, $co{'title_short'},
3445                                          href(action=>"commit", hash=>$commit), $ref);
3446                print "</td>\n" .
3447                      "<td class=\"link\">" .
3448                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3449                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3450                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3451                my $snapshot_links = format_snapshot_links($commit);
3452                if (defined $snapshot_links) {
3453                        print " | " . $snapshot_links;
3454                }
3455                print "</td>\n" .
3456                      "</tr>\n";
3457        }
3458        if (defined $extra) {
3459                print "<tr>\n" .
3460                      "<td colspan=\"4\">$extra</td>\n" .
3461                      "</tr>\n";
3462        }
3463        print "</table>\n";
3464}
3465
3466sub git_history_body {
3467        # Warning: assumes constant type (blob or tree) during history
3468        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3469
3470        $from = 0 unless defined $from;
3471        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3472
3473        print "<table class=\"history\" cellspacing=\"0\">\n";
3474        my $alternate = 1;
3475        for (my $i = $from; $i <= $to; $i++) {
3476                my %co = %{$commitlist->[$i]};
3477                if (!%co) {
3478                        next;
3479                }
3480                my $commit = $co{'id'};
3481
3482                my $ref = format_ref_marker($refs, $commit);
3483
3484                if ($alternate) {
3485                        print "<tr class=\"dark\">\n";
3486                } else {
3487                        print "<tr class=\"light\">\n";
3488                }
3489                $alternate ^= 1;
3490        # shortlog uses      chop_str($co{'author_name'}, 10)
3491                my $author = chop_and_escape_str($co{'author_name'}, 15, 3);
3492                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3493                      "<td><i>" . $author . "</i></td>\n" .
3494                      "<td>";
3495                # originally git_history used chop_str($co{'title'}, 50)
3496                print format_subject_html($co{'title'}, $co{'title_short'},
3497                                          href(action=>"commit", hash=>$commit), $ref);
3498                print "</td>\n" .
3499                      "<td class=\"link\">" .
3500                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3501                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3502
3503                if ($ftype eq 'blob') {
3504                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3505                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3506                        if (defined $blob_current && defined $blob_parent &&
3507                                        $blob_current ne $blob_parent) {
3508                                print " | " .
3509                                        $cgi->a({-href => href(action=>"blobdiff",
3510                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3511                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3512                                                               file_name=>$file_name)},
3513                                                "diff to current");
3514                        }
3515                }
3516                print "</td>\n" .
3517                      "</tr>\n";
3518        }
3519        if (defined $extra) {
3520                print "<tr>\n" .
3521                      "<td colspan=\"4\">$extra</td>\n" .
3522                      "</tr>\n";
3523        }
3524        print "</table>\n";
3525}
3526
3527sub git_tags_body {
3528        # uses global variable $project
3529        my ($taglist, $from, $to, $extra) = @_;
3530        $from = 0 unless defined $from;
3531        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3532
3533        print "<table class=\"tags\" cellspacing=\"0\">\n";
3534        my $alternate = 1;
3535        for (my $i = $from; $i <= $to; $i++) {
3536                my $entry = $taglist->[$i];
3537                my %tag = %$entry;
3538                my $comment = $tag{'subject'};
3539                my $comment_short;
3540                if (defined $comment) {
3541                        $comment_short = chop_str($comment, 30, 5);
3542                }
3543                if ($alternate) {
3544                        print "<tr class=\"dark\">\n";
3545                } else {
3546                        print "<tr class=\"light\">\n";
3547                }
3548                $alternate ^= 1;
3549                if (defined $tag{'age'}) {
3550                        print "<td><i>$tag{'age'}</i></td>\n";
3551                } else {
3552                        print "<td></td>\n";
3553                }
3554                print "<td>" .
3555                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3556                               -class => "list name"}, esc_html($tag{'name'})) .
3557                      "</td>\n" .
3558                      "<td>";
3559                if (defined $comment) {
3560                        print format_subject_html($comment, $comment_short,
3561                                                  href(action=>"tag", hash=>$tag{'id'}));
3562                }
3563                print "</td>\n" .
3564                      "<td class=\"selflink\">";
3565                if ($tag{'type'} eq "tag") {
3566                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3567                } else {
3568                        print "&nbsp;";
3569                }
3570                print "</td>\n" .
3571                      "<td class=\"link\">" . " | " .
3572                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3573                if ($tag{'reftype'} eq "commit") {
3574                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3575                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3576                } elsif ($tag{'reftype'} eq "blob") {
3577                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3578                }
3579                print "</td>\n" .
3580                      "</tr>";
3581        }
3582        if (defined $extra) {
3583                print "<tr>\n" .
3584                      "<td colspan=\"5\">$extra</td>\n" .
3585                      "</tr>\n";
3586        }
3587        print "</table>\n";
3588}
3589
3590sub git_heads_body {
3591        # uses global variable $project
3592        my ($headlist, $head, $from, $to, $extra) = @_;
3593        $from = 0 unless defined $from;
3594        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3595
3596        print "<table class=\"heads\" cellspacing=\"0\">\n";
3597        my $alternate = 1;
3598        for (my $i = $from; $i <= $to; $i++) {
3599                my $entry = $headlist->[$i];
3600                my %ref = %$entry;
3601                my $curr = $ref{'id'} eq $head;
3602                if ($alternate) {
3603                        print "<tr class=\"dark\">\n";
3604                } else {
3605                        print "<tr class=\"light\">\n";
3606                }
3607                $alternate ^= 1;
3608                print "<td><i>$ref{'age'}</i></td>\n" .
3609                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3610                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3611                               -class => "list name"},esc_html($ref{'name'})) .
3612                      "</td>\n" .
3613                      "<td class=\"link\">" .
3614                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3615                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3616                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3617                      "</td>\n" .
3618                      "</tr>";
3619        }
3620        if (defined $extra) {
3621                print "<tr>\n" .
3622                      "<td colspan=\"3\">$extra</td>\n" .
3623                      "</tr>\n";
3624        }
3625        print "</table>\n";
3626}
3627
3628sub git_search_grep_body {
3629        my ($commitlist, $from, $to, $extra) = @_;
3630        $from = 0 unless defined $from;
3631        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3632
3633        print "<table class=\"grep\" cellspacing=\"0\">\n";
3634        my $alternate = 1;
3635        for (my $i = $from; $i <= $to; $i++) {
3636                my %co = %{$commitlist->[$i]};
3637                if (!%co) {
3638                        next;
3639                }
3640                my $commit = $co{'id'};
3641                if ($alternate) {
3642                        print "<tr class=\"dark\">\n";
3643                } else {
3644                        print "<tr class=\"light\">\n";
3645                }
3646                $alternate ^= 1;
3647                my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
3648                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3649                      "<td><i>" . $author . "</i></td>\n" .
3650                      "<td>" .
3651                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3652                               chop_and_escape_str($co{'title'}, 50) . "<br/>");
3653                my $comment = $co{'comment'};
3654                foreach my $line (@$comment) {
3655                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3656                                my $lead = esc_html($1) || "";
3657                                $lead = chop_str($lead, 30, 10);
3658                                my $match = esc_html($2) || "";
3659                                my $trail = esc_html($3) || "";
3660                                $trail = chop_str($trail, 30, 10);
3661                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3662                                print chop_str($text, 80, 5) . "<br/>\n";
3663                        }
3664                }
3665                print "</td>\n" .
3666                      "<td class=\"link\">" .
3667                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3668                      " | " .
3669                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3670                print "</td>\n" .
3671                      "</tr>\n";
3672        }
3673        if (defined $extra) {
3674                print "<tr>\n" .
3675                      "<td colspan=\"3\">$extra</td>\n" .
3676                      "</tr>\n";
3677        }
3678        print "</table>\n";
3679}
3680
3681## ======================================================================
3682## ======================================================================
3683## actions
3684
3685sub git_project_list {
3686        my $order = $cgi->param('o');
3687        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3688                die_error(undef, "Unknown order parameter");
3689        }
3690
3691        my @list = git_get_projects_list();
3692        if (!@list) {
3693                die_error(undef, "No projects found");
3694        }
3695
3696        git_header_html();
3697        if (-f $home_text) {
3698                print "<div class=\"index_include\">\n";
3699                open (my $fd, $home_text);
3700                print <$fd>;
3701                close $fd;
3702                print "</div>\n";
3703        }
3704        git_project_list_body(\@list, $order);
3705        git_footer_html();
3706}
3707
3708sub git_forks {
3709        my $order = $cgi->param('o');
3710        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3711                die_error(undef, "Unknown order parameter");
3712        }
3713
3714        my @list = git_get_projects_list($project);
3715        if (!@list) {
3716                die_error(undef, "No forks found");
3717        }
3718
3719        git_header_html();
3720        git_print_page_nav('','');
3721        git_print_header_div('summary', "$project forks");
3722        git_project_list_body(\@list, $order);
3723        git_footer_html();
3724}
3725
3726sub git_project_index {
3727        my @projects = git_get_projects_list($project);
3728
3729        print $cgi->header(
3730                -type => 'text/plain',
3731                -charset => 'utf-8',
3732                -content_disposition => 'inline; filename="index.aux"');
3733
3734        foreach my $pr (@projects) {
3735                if (!exists $pr->{'owner'}) {
3736                        $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
3737                }
3738
3739                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3740                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3741                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3742                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3743                $path  =~ s/ /\+/g;
3744                $owner =~ s/ /\+/g;
3745
3746                print "$path $owner\n";
3747        }
3748}
3749
3750sub git_summary {
3751        my $descr = git_get_project_description($project) || "none";
3752        my %co = parse_commit("HEAD");
3753        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3754        my $head = $co{'id'};
3755
3756        my $owner = git_get_project_owner($project);
3757
3758        my $refs = git_get_references();
3759        # These get_*_list functions return one more to allow us to see if
3760        # there are more ...
3761        my @taglist  = git_get_tags_list(16);
3762        my @headlist = git_get_heads_list(16);
3763        my @forklist;
3764        my ($check_forks) = gitweb_check_feature('forks');
3765
3766        if ($check_forks) {
3767                @forklist = git_get_projects_list($project);
3768        }
3769
3770        git_header_html();
3771        git_print_page_nav('summary','', $head);
3772
3773        print "<div class=\"title\">&nbsp;</div>\n";
3774        print "<table cellspacing=\"0\">\n" .
3775              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3776              "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
3777        if (defined $cd{'rfc2822'}) {
3778                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3779        }
3780
3781        # use per project git URL list in $projectroot/$project/cloneurl
3782        # or make project git URL from git base URL and project name
3783        my $url_tag = "URL";
3784        my @url_list = git_get_project_url_list($project);
3785        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3786        foreach my $git_url (@url_list) {
3787                next unless $git_url;
3788                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3789                $url_tag = "";
3790        }
3791        print "</table>\n";
3792
3793        if (-s "$projectroot/$project/README.html") {
3794                if (open my $fd, "$projectroot/$project/README.html") {
3795                        print "<div class=\"title\">readme</div>\n";
3796                        print $_ while (<$fd>);
3797                        close $fd;
3798                }
3799        }
3800
3801        # we need to request one more than 16 (0..15) to check if
3802        # those 16 are all
3803        my @commitlist = $head ? parse_commits($head, 17) : ();
3804        if (@commitlist) {
3805                git_print_header_div('shortlog');
3806                git_shortlog_body(\@commitlist, 0, 15, $refs,
3807                                  $#commitlist <=  15 ? undef :
3808                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3809        }
3810
3811        if (@taglist) {
3812                git_print_header_div('tags');
3813                git_tags_body(\@taglist, 0, 15,
3814                              $#taglist <=  15 ? undef :
3815                              $cgi->a({-href => href(action=>"tags")}, "..."));
3816        }
3817
3818        if (@headlist) {
3819                git_print_header_div('heads');
3820                git_heads_body(\@headlist, $head, 0, 15,
3821                               $#headlist <= 15 ? undef :
3822                               $cgi->a({-href => href(action=>"heads")}, "..."));
3823        }
3824
3825        if (@forklist) {
3826                git_print_header_div('forks');
3827                git_project_list_body(\@forklist, undef, 0, 15,
3828                                      $#forklist <= 15 ? undef :
3829                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3830                                      'noheader');
3831        }
3832
3833        git_footer_html();
3834}
3835
3836sub git_tag {
3837        my $head = git_get_head_hash($project);
3838        git_header_html();
3839        git_print_page_nav('','', $head,undef,$head);
3840        my %tag = parse_tag($hash);
3841
3842        if (! %tag) {
3843                die_error(undef, "Unknown tag object");
3844        }
3845
3846        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3847        print "<div class=\"title_text\">\n" .
3848              "<table cellspacing=\"0\">\n" .
3849              "<tr>\n" .
3850              "<td>object</td>\n" .
3851              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3852                               $tag{'object'}) . "</td>\n" .
3853              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3854                                              $tag{'type'}) . "</td>\n" .
3855              "</tr>\n";
3856        if (defined($tag{'author'})) {
3857                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3858                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3859                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3860                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3861                        "</td></tr>\n";
3862        }
3863        print "</table>\n\n" .
3864              "</div>\n";
3865        print "<div class=\"page_body\">";
3866        my $comment = $tag{'comment'};
3867        foreach my $line (@$comment) {
3868                chomp $line;
3869                print esc_html($line, -nbsp=>1) . "<br/>\n";
3870        }
3871        print "</div>\n";
3872        git_footer_html();
3873}
3874
3875sub git_blame2 {
3876        my $fd;
3877        my $ftype;
3878
3879        my ($have_blame) = gitweb_check_feature('blame');
3880        if (!$have_blame) {
3881                die_error('403 Permission denied', "Permission denied");
3882        }
3883        die_error('404 Not Found', "File name not defined") if (!$file_name);
3884        $hash_base ||= git_get_head_hash($project);
3885        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3886        my %co = parse_commit($hash_base)
3887                or die_error(undef, "Reading commit failed");
3888        if (!defined $hash) {
3889                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3890                        or die_error(undef, "Error looking up file");
3891        }
3892        $ftype = git_get_type($hash);
3893        if ($ftype !~ "blob") {
3894                die_error('400 Bad Request', "Object is not a blob");
3895        }
3896        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3897              $file_name, $hash_base)
3898                or die_error(undef, "Open git-blame failed");
3899        git_header_html();
3900        my $formats_nav =
3901                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3902                        "blob") .
3903                " | " .
3904                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3905                        "history") .
3906                " | " .
3907                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3908                        "HEAD");
3909        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3910        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3911        git_print_page_path($file_name, $ftype, $hash_base);
3912        my @rev_color = (qw(light2 dark2));
3913        my $num_colors = scalar(@rev_color);
3914        my $current_color = 0;
3915        my $last_rev;
3916        print <<HTML;
3917<div class="page_body">
3918<table class="blame">
3919<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3920HTML
3921        my %metainfo = ();
3922        while (1) {
3923                $_ = <$fd>;
3924                last unless defined $_;
3925                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3926                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3927                if (!exists $metainfo{$full_rev}) {
3928                        $metainfo{$full_rev} = {};
3929                }
3930                my $meta = $metainfo{$full_rev};
3931                while (<$fd>) {
3932                        last if (s/^\t//);
3933                        if (/^(\S+) (.*)$/) {
3934                                $meta->{$1} = $2;
3935                        }
3936                }
3937                my $data = $_;
3938                chomp $data;
3939                my $rev = substr($full_rev, 0, 8);
3940                my $author = $meta->{'author'};
3941                my %date = parse_date($meta->{'author-time'},
3942                                      $meta->{'author-tz'});
3943                my $date = $date{'iso-tz'};
3944                if ($group_size) {
3945                        $current_color = ++$current_color % $num_colors;
3946                }
3947                print "<tr class=\"$rev_color[$current_color]\">\n";
3948                if ($group_size) {
3949                        print "<td class=\"sha1\"";
3950                        print " title=\"". esc_html($author) . ", $date\"";
3951                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3952                        print ">";
3953                        print $cgi->a({-href => href(action=>"commit",
3954                                                     hash=>$full_rev,
3955                                                     file_name=>$file_name)},
3956                                      esc_html($rev));
3957                        print "</td>\n";
3958                }
3959                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3960                        or die_error(undef, "Open git-rev-parse failed");
3961                my $parent_commit = <$dd>;
3962                close $dd;
3963                chomp($parent_commit);
3964                my $blamed = href(action => 'blame',
3965                                  file_name => $meta->{'filename'},
3966                                  hash_base => $parent_commit);
3967                print "<td class=\"linenr\">";
3968                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3969                                -id => "l$lineno",
3970                                -class => "linenr" },
3971                              esc_html($lineno));
3972                print "</td>";
3973                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3974                print "</tr>\n";
3975        }
3976        print "</table>\n";
3977        print "</div>";
3978        close $fd
3979                or print "Reading blob failed\n";
3980        git_footer_html();
3981}
3982
3983sub git_blame {
3984        my $fd;
3985
3986        my ($have_blame) = gitweb_check_feature('blame');
3987        if (!$have_blame) {
3988                die_error('403 Permission denied', "Permission denied");
3989        }
3990        die_error('404 Not Found', "File name not defined") if (!$file_name);
3991        $hash_base ||= git_get_head_hash($project);
3992        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3993        my %co = parse_commit($hash_base)
3994                or die_error(undef, "Reading commit failed");
3995        if (!defined $hash) {
3996                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3997                        or die_error(undef, "Error lookup file");
3998        }
3999        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
4000                or die_error(undef, "Open git-annotate failed");
4001        git_header_html();
4002        my $formats_nav =
4003                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4004                        "blob") .
4005                " | " .
4006                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4007                        "history") .
4008                " | " .
4009                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4010                        "HEAD");
4011        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4012        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4013        git_print_page_path($file_name, 'blob', $hash_base);
4014        print "<div class=\"page_body\">\n";
4015        print <<HTML;
4016<table class="blame">
4017  <tr>
4018    <th>Commit</th>
4019    <th>Age</th>
4020    <th>Author</th>
4021    <th>Line</th>
4022    <th>Data</th>
4023  </tr>
4024HTML
4025        my @line_class = (qw(light dark));
4026        my $line_class_len = scalar (@line_class);
4027        my $line_class_num = $#line_class;
4028        while (my $line = <$fd>) {
4029                my $long_rev;
4030                my $short_rev;
4031                my $author;
4032                my $time;
4033                my $lineno;
4034                my $data;
4035                my $age;
4036                my $age_str;
4037                my $age_class;
4038
4039                chomp $line;
4040                $line_class_num = ($line_class_num + 1) % $line_class_len;
4041
4042                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
4043                        $long_rev = $1;
4044                        $author   = $2;
4045                        $time     = $3;
4046                        $lineno   = $4;
4047                        $data     = $5;
4048                } else {
4049                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
4050                        next;
4051                }
4052                $short_rev  = substr ($long_rev, 0, 8);
4053                $age        = time () - $time;
4054                $age_str    = age_string ($age);
4055                $age_str    =~ s/ /&nbsp;/g;
4056                $age_class  = age_class($age);
4057                $author     = esc_html ($author);
4058                $author     =~ s/ /&nbsp;/g;
4059
4060                $data = untabify($data);
4061                $data = esc_html ($data);
4062
4063                print <<HTML;
4064  <tr class="$line_class[$line_class_num]">
4065    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
4066    <td class="$age_class">$age_str</td>
4067    <td>$author</td>
4068    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
4069    <td class="pre">$data</td>
4070  </tr>
4071HTML
4072        } # while (my $line = <$fd>)
4073        print "</table>\n\n";
4074        close $fd
4075                or print "Reading blob failed.\n";
4076        print "</div>";
4077        git_footer_html();
4078}
4079
4080sub git_tags {
4081        my $head = git_get_head_hash($project);
4082        git_header_html();
4083        git_print_page_nav('','', $head,undef,$head);
4084        git_print_header_div('summary', $project);
4085
4086        my @tagslist = git_get_tags_list();
4087        if (@tagslist) {
4088                git_tags_body(\@tagslist);
4089        }
4090        git_footer_html();
4091}
4092
4093sub git_heads {
4094        my $head = git_get_head_hash($project);
4095        git_header_html();
4096        git_print_page_nav('','', $head,undef,$head);
4097        git_print_header_div('summary', $project);
4098
4099        my @headslist = git_get_heads_list();
4100        if (@headslist) {
4101                git_heads_body(\@headslist, $head);
4102        }
4103        git_footer_html();
4104}
4105
4106sub git_blob_plain {
4107        my $expires;
4108
4109        if (!defined $hash) {
4110                if (defined $file_name) {
4111                        my $base = $hash_base || git_get_head_hash($project);
4112                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4113                                or die_error(undef, "Error lookup file");
4114                } else {
4115                        die_error(undef, "No file name defined");
4116                }
4117        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4118                # blobs defined by non-textual hash id's can be cached
4119                $expires = "+1d";
4120        }
4121
4122        my $type = shift;
4123        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4124                or die_error(undef, "Couldn't cat $file_name, $hash");
4125
4126        $type ||= blob_mimetype($fd, $file_name);
4127
4128        # save as filename, even when no $file_name is given
4129        my $save_as = "$hash";
4130        if (defined $file_name) {
4131                $save_as = $file_name;
4132        } elsif ($type =~ m/^text\//) {
4133                $save_as .= '.txt';
4134        }
4135
4136        print $cgi->header(
4137                -type => "$type",
4138                -expires=>$expires,
4139                -content_disposition => 'inline; filename="' . "$save_as" . '"');
4140        undef $/;
4141        binmode STDOUT, ':raw';
4142        print <$fd>;
4143        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4144        $/ = "\n";
4145        close $fd;
4146}
4147
4148sub git_blob {
4149        my $expires;
4150
4151        if (!defined $hash) {
4152                if (defined $file_name) {
4153                        my $base = $hash_base || git_get_head_hash($project);
4154                        $hash = git_get_hash_by_path($base, $file_name, "blob")
4155                                or die_error(undef, "Error lookup file");
4156                } else {
4157                        die_error(undef, "No file name defined");
4158                }
4159        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4160                # blobs defined by non-textual hash id's can be cached
4161                $expires = "+1d";
4162        }
4163
4164        my ($have_blame) = gitweb_check_feature('blame');
4165        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4166                or die_error(undef, "Couldn't cat $file_name, $hash");
4167        my $mimetype = blob_mimetype($fd, $file_name);
4168        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
4169                close $fd;
4170                return git_blob_plain($mimetype);
4171        }
4172        # we can have blame only for text/* mimetype
4173        $have_blame &&= ($mimetype =~ m!^text/!);
4174
4175        git_header_html(undef, $expires);
4176        my $formats_nav = '';
4177        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4178                if (defined $file_name) {
4179                        if ($have_blame) {
4180                                $formats_nav .=
4181                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
4182                                                               hash=>$hash, file_name=>$file_name)},
4183                                                "blame") .
4184                                        " | ";
4185                        }
4186                        $formats_nav .=
4187                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4188                                                       hash=>$hash, file_name=>$file_name)},
4189                                        "history") .
4190                                " | " .
4191                                $cgi->a({-href => href(action=>"blob_plain",
4192                                                       hash=>$hash, file_name=>$file_name)},
4193                                        "raw") .
4194                                " | " .
4195                                $cgi->a({-href => href(action=>"blob",
4196                                                       hash_base=>"HEAD", file_name=>$file_name)},
4197                                        "HEAD");
4198                } else {
4199                        $formats_nav .=
4200                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
4201                }
4202                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4203                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4204        } else {
4205                print "<div class=\"page_nav\">\n" .
4206                      "<br/><br/></div>\n" .
4207                      "<div class=\"title\">$hash</div>\n";
4208        }
4209        git_print_page_path($file_name, "blob", $hash_base);
4210        print "<div class=\"page_body\">\n";
4211        if ($mimetype =~ m!^text/!) {
4212                my $nr;
4213                while (my $line = <$fd>) {
4214                        chomp $line;
4215                        $nr++;
4216                        $line = untabify($line);
4217                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4218                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4219                }
4220        } elsif ($mimetype =~ m!^image/!) {
4221                print qq!<img type="$mimetype"!;
4222                if ($file_name) {
4223                        print qq! alt="$file_name" title="$file_name"!;
4224                }
4225                print qq! src="! .
4226                      href(action=>"blob_plain", hash=>$hash,
4227                           hash_base=>$hash_base, file_name=>$file_name) .
4228                      qq!" />\n!;
4229        }
4230        close $fd
4231                or print "Reading blob failed.\n";
4232        print "</div>";
4233        git_footer_html();
4234}
4235
4236sub git_tree {
4237        if (!defined $hash_base) {
4238                $hash_base = "HEAD";
4239        }
4240        if (!defined $hash) {
4241                if (defined $file_name) {
4242                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4243                } else {
4244                        $hash = $hash_base;
4245                }
4246        }
4247        $/ = "\0";
4248        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4249                or die_error(undef, "Open git-ls-tree failed");
4250        my @entries = map { chomp; $_ } <$fd>;
4251        close $fd or die_error(undef, "Reading tree failed");
4252        $/ = "\n";
4253
4254        my $refs = git_get_references();
4255        my $ref = format_ref_marker($refs, $hash_base);
4256        git_header_html();
4257        my $basedir = '';
4258        my ($have_blame) = gitweb_check_feature('blame');
4259        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4260                my @views_nav = ();
4261                if (defined $file_name) {
4262                        push @views_nav,
4263                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4264                                                       hash=>$hash, file_name=>$file_name)},
4265                                        "history"),
4266                                $cgi->a({-href => href(action=>"tree",
4267                                                       hash_base=>"HEAD", file_name=>$file_name)},
4268                                        "HEAD"),
4269                }
4270                my $snapshot_links = format_snapshot_links($hash);
4271                if (defined $snapshot_links) {
4272                        # FIXME: Should be available when we have no hash base as well.
4273                        push @views_nav, $snapshot_links;
4274                }
4275                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4276                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4277        } else {
4278                undef $hash_base;
4279                print "<div class=\"page_nav\">\n";
4280                print "<br/><br/></div>\n";
4281                print "<div class=\"title\">$hash</div>\n";
4282        }
4283        if (defined $file_name) {
4284                $basedir = $file_name;
4285                if ($basedir ne '' && substr($basedir, -1) ne '/') {
4286                        $basedir .= '/';
4287                }
4288        }
4289        git_print_page_path($file_name, 'tree', $hash_base);
4290        print "<div class=\"page_body\">\n";
4291        print "<table cellspacing=\"0\">\n";
4292        my $alternate = 1;
4293        # '..' (top directory) link if possible
4294        if (defined $hash_base &&
4295            defined $file_name && $file_name =~ m![^/]+$!) {
4296                if ($alternate) {
4297                        print "<tr class=\"dark\">\n";
4298                } else {
4299                        print "<tr class=\"light\">\n";
4300                }
4301                $alternate ^= 1;
4302
4303                my $up = $file_name;
4304                $up =~ s!/?[^/]+$!!;
4305                undef $up unless $up;
4306                # based on git_print_tree_entry
4307                print '<td class="mode">' . mode_str('040000') . "</td>\n";
4308                print '<td class="list">';
4309                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4310                                             file_name=>$up)},
4311                              "..");
4312                print "</td>\n";
4313                print "<td class=\"link\"></td>\n";
4314
4315                print "</tr>\n";
4316        }
4317        foreach my $line (@entries) {
4318                my %t = parse_ls_tree_line($line, -z => 1);
4319
4320                if ($alternate) {
4321                        print "<tr class=\"dark\">\n";
4322                } else {
4323                        print "<tr class=\"light\">\n";
4324                }
4325                $alternate ^= 1;
4326
4327                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4328
4329                print "</tr>\n";
4330        }
4331        print "</table>\n" .
4332              "</div>";
4333        git_footer_html();
4334}
4335
4336sub git_snapshot {
4337        my @supported_fmts = gitweb_check_feature('snapshot');
4338        @supported_fmts = filter_snapshot_fmts(@supported_fmts);
4339
4340        my $format = $cgi->param('sf');
4341        if (!@supported_fmts) {
4342                die_error('403 Permission denied', "Permission denied");
4343        }
4344        # default to first supported snapshot format
4345        $format ||= $supported_fmts[0];
4346        if ($format !~ m/^[a-z0-9]+$/) {
4347                die_error(undef, "Invalid snapshot format parameter");
4348        } elsif (!exists($known_snapshot_formats{$format})) {
4349                die_error(undef, "Unknown snapshot format");
4350        } elsif (!grep($_ eq $format, @supported_fmts)) {
4351                die_error(undef, "Unsupported snapshot format");
4352        }
4353
4354        if (!defined $hash) {
4355                $hash = git_get_head_hash($project);
4356        }
4357
4358        my $git_command = git_cmd_str();
4359        my $name = $project;
4360        $name =~ s,([^/])/*\.git$,$1,;
4361        $name = basename($name);
4362        my $filename = to_utf8($name);
4363        $name =~ s/\047/\047\\\047\047/g;
4364        my $cmd;
4365        $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
4366        $cmd = "$git_command archive " .
4367                "--format=$known_snapshot_formats{$format}{'format'} " .
4368                "--prefix=\'$name\'/ $hash";
4369        if (exists $known_snapshot_formats{$format}{'compressor'}) {
4370                $cmd .= ' | ' . join ' ', @{$known_snapshot_formats{$format}{'compressor'}};
4371        }
4372
4373        print $cgi->header(
4374                -type => $known_snapshot_formats{$format}{'type'},
4375                -content_disposition => 'inline; filename="' . "$filename" . '"',
4376                -status => '200 OK');
4377
4378        open my $fd, "-|", $cmd
4379                or die_error(undef, "Execute git-archive failed");
4380        binmode STDOUT, ':raw';
4381        print <$fd>;
4382        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4383        close $fd;
4384}
4385
4386sub git_log {
4387        my $head = git_get_head_hash($project);
4388        if (!defined $hash) {
4389                $hash = $head;
4390        }
4391        if (!defined $page) {
4392                $page = 0;
4393        }
4394        my $refs = git_get_references();
4395
4396        my @commitlist = parse_commits($hash, 101, (100 * $page));
4397
4398        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
4399
4400        git_header_html();
4401        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4402
4403        if (!@commitlist) {
4404                my %co = parse_commit($hash);
4405
4406                git_print_header_div('summary', $project);
4407                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4408        }
4409        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4410        for (my $i = 0; $i <= $to; $i++) {
4411                my %co = %{$commitlist[$i]};
4412                next if !%co;
4413                my $commit = $co{'id'};
4414                my $ref = format_ref_marker($refs, $commit);
4415                my %ad = parse_date($co{'author_epoch'});
4416                git_print_header_div('commit',
4417                               "<span class=\"age\">$co{'age_string'}</span>" .
4418                               esc_html($co{'title'}) . $ref,
4419                               $commit);
4420                print "<div class=\"title_text\">\n" .
4421                      "<div class=\"log_link\">\n" .
4422                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4423                      " | " .
4424                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4425                      " | " .
4426                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4427                      "<br/>\n" .
4428                      "</div>\n" .
4429                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4430                      "</div>\n";
4431
4432                print "<div class=\"log_body\">\n";
4433                git_print_log($co{'comment'}, -final_empty_line=> 1);
4434                print "</div>\n";
4435        }
4436        if ($#commitlist >= 100) {
4437                print "<div class=\"page_nav\">\n";
4438                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
4439                               -accesskey => "n", -title => "Alt-n"}, "next");
4440                print "</div>\n";
4441        }
4442        git_footer_html();
4443}
4444
4445sub git_commit {
4446        $hash ||= $hash_base || "HEAD";
4447        my %co = parse_commit($hash);
4448        if (!%co) {
4449                die_error(undef, "Unknown commit object");
4450        }
4451        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4452        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4453
4454        my $parent  = $co{'parent'};
4455        my $parents = $co{'parents'}; # listref
4456
4457        # we need to prepare $formats_nav before any parameter munging
4458        my $formats_nav;
4459        if (!defined $parent) {
4460                # --root commitdiff
4461                $formats_nav .= '(initial)';
4462        } elsif (@$parents == 1) {
4463                # single parent commit
4464                $formats_nav .=
4465                        '(parent: ' .
4466                        $cgi->a({-href => href(action=>"commit",
4467                                               hash=>$parent)},
4468                                esc_html(substr($parent, 0, 7))) .
4469                        ')';
4470        } else {
4471                # merge commit
4472                $formats_nav .=
4473                        '(merge: ' .
4474                        join(' ', map {
4475                                $cgi->a({-href => href(action=>"commit",
4476                                                       hash=>$_)},
4477                                        esc_html(substr($_, 0, 7)));
4478                        } @$parents ) .
4479                        ')';
4480        }
4481
4482        if (!defined $parent) {
4483                $parent = "--root";
4484        }
4485        my @difftree;
4486        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4487                @diff_opts,
4488                (@$parents <= 1 ? $parent : '-c'),
4489                $hash, "--"
4490                or die_error(undef, "Open git-diff-tree failed");
4491        @difftree = map { chomp; $_ } <$fd>;
4492        close $fd or die_error(undef, "Reading git-diff-tree failed");
4493
4494        # non-textual hash id's can be cached
4495        my $expires;
4496        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4497                $expires = "+1d";
4498        }
4499        my $refs = git_get_references();
4500        my $ref = format_ref_marker($refs, $co{'id'});
4501
4502        git_header_html(undef, $expires);
4503        git_print_page_nav('commit', '',
4504                           $hash, $co{'tree'}, $hash,
4505                           $formats_nav);
4506
4507        if (defined $co{'parent'}) {
4508                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4509        } else {
4510                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4511        }
4512        print "<div class=\"title_text\">\n" .
4513              "<table cellspacing=\"0\">\n";
4514        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4515              "<tr>" .
4516              "<td></td><td> $ad{'rfc2822'}";
4517        if ($ad{'hour_local'} < 6) {
4518                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4519                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4520        } else {
4521                printf(" (%02d:%02d %s)",
4522                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4523        }
4524        print "</td>" .
4525              "</tr>\n";
4526        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4527        print "<tr><td></td><td> $cd{'rfc2822'}" .
4528              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4529              "</td></tr>\n";
4530        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4531        print "<tr>" .
4532              "<td>tree</td>" .
4533              "<td class=\"sha1\">" .
4534              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4535                       class => "list"}, $co{'tree'}) .
4536              "</td>" .
4537              "<td class=\"link\">" .
4538              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4539                      "tree");
4540        my $snapshot_links = format_snapshot_links($hash);
4541        if (defined $snapshot_links) {
4542                print " | " . $snapshot_links;
4543        }
4544        print "</td>" .
4545              "</tr>\n";
4546
4547        foreach my $par (@$parents) {
4548                print "<tr>" .
4549                      "<td>parent</td>" .
4550                      "<td class=\"sha1\">" .
4551                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4552                               class => "list"}, $par) .
4553                      "</td>" .
4554                      "<td class=\"link\">" .
4555                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4556                      " | " .
4557                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4558                      "</td>" .
4559                      "</tr>\n";
4560        }
4561        print "</table>".
4562              "</div>\n";
4563
4564        print "<div class=\"page_body\">\n";
4565        git_print_log($co{'comment'});
4566        print "</div>\n";
4567
4568        git_difftree_body(\@difftree, $hash, @$parents);
4569
4570        git_footer_html();
4571}
4572
4573sub git_object {
4574        # object is defined by:
4575        # - hash or hash_base alone
4576        # - hash_base and file_name
4577        my $type;
4578
4579        # - hash or hash_base alone
4580        if ($hash || ($hash_base && !defined $file_name)) {
4581                my $object_id = $hash || $hash_base;
4582
4583                my $git_command = git_cmd_str();
4584                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4585                        or die_error('404 Not Found', "Object does not exist");
4586                $type = <$fd>;
4587                chomp $type;
4588                close $fd
4589                        or die_error('404 Not Found', "Object does not exist");
4590
4591        # - hash_base and file_name
4592        } elsif ($hash_base && defined $file_name) {
4593                $file_name =~ s,/+$,,;
4594
4595                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4596                        or die_error('404 Not Found', "Base object does not exist");
4597
4598                # here errors should not hapen
4599                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4600                        or die_error(undef, "Open git-ls-tree failed");
4601                my $line = <$fd>;
4602                close $fd;
4603
4604                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4605                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4606                        die_error('404 Not Found', "File or directory for given base does not exist");
4607                }
4608                $type = $2;
4609                $hash = $3;
4610        } else {
4611                die_error('404 Not Found', "Not enough information to find object");
4612        }
4613
4614        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4615                                          hash=>$hash, hash_base=>$hash_base,
4616                                          file_name=>$file_name),
4617                             -status => '302 Found');
4618}
4619
4620sub git_blobdiff {
4621        my $format = shift || 'html';
4622
4623        my $fd;
4624        my @difftree;
4625        my %diffinfo;
4626        my $expires;
4627
4628        # preparing $fd and %diffinfo for git_patchset_body
4629        # new style URI
4630        if (defined $hash_base && defined $hash_parent_base) {
4631                if (defined $file_name) {
4632                        # read raw output
4633                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4634                                $hash_parent_base, $hash_base,
4635                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4636                                or die_error(undef, "Open git-diff-tree failed");
4637                        @difftree = map { chomp; $_ } <$fd>;
4638                        close $fd
4639                                or die_error(undef, "Reading git-diff-tree failed");
4640                        @difftree
4641                                or die_error('404 Not Found', "Blob diff not found");
4642
4643                } elsif (defined $hash &&
4644                         $hash =~ /[0-9a-fA-F]{40}/) {
4645                        # try to find filename from $hash
4646
4647                        # read filtered raw output
4648                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4649                                $hash_parent_base, $hash_base, "--"
4650                                or die_error(undef, "Open git-diff-tree failed");
4651                        @difftree =
4652                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4653                                # $hash == to_id
4654                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4655                                map { chomp; $_ } <$fd>;
4656                        close $fd
4657                                or die_error(undef, "Reading git-diff-tree failed");
4658                        @difftree
4659                                or die_error('404 Not Found', "Blob diff not found");
4660
4661                } else {
4662                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4663                }
4664
4665                if (@difftree > 1) {
4666                        die_error('404 Not Found', "Ambiguous blob diff specification");
4667                }
4668
4669                %diffinfo = parse_difftree_raw_line($difftree[0]);
4670                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4671                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4672
4673                $hash_parent ||= $diffinfo{'from_id'};
4674                $hash        ||= $diffinfo{'to_id'};
4675
4676                # non-textual hash id's can be cached
4677                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4678                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4679                        $expires = '+1d';
4680                }
4681
4682                # open patch output
4683                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4684                        '-p', ($format eq 'html' ? "--full-index" : ()),
4685                        $hash_parent_base, $hash_base,
4686                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4687                        or die_error(undef, "Open git-diff-tree failed");
4688        }
4689
4690        # old/legacy style URI
4691        if (!%diffinfo && # if new style URI failed
4692            defined $hash && defined $hash_parent) {
4693                # fake git-diff-tree raw output
4694                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4695                $diffinfo{'from_id'} = $hash_parent;
4696                $diffinfo{'to_id'}   = $hash;
4697                if (defined $file_name) {
4698                        if (defined $file_parent) {
4699                                $diffinfo{'status'} = '2';
4700                                $diffinfo{'from_file'} = $file_parent;
4701                                $diffinfo{'to_file'}   = $file_name;
4702                        } else { # assume not renamed
4703                                $diffinfo{'status'} = '1';
4704                                $diffinfo{'from_file'} = $file_name;
4705                                $diffinfo{'to_file'}   = $file_name;
4706                        }
4707                } else { # no filename given
4708                        $diffinfo{'status'} = '2';
4709                        $diffinfo{'from_file'} = $hash_parent;
4710                        $diffinfo{'to_file'}   = $hash;
4711                }
4712
4713                # non-textual hash id's can be cached
4714                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4715                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4716                        $expires = '+1d';
4717                }
4718
4719                # open patch output
4720                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4721                        '-p', ($format eq 'html' ? "--full-index" : ()),
4722                        $hash_parent, $hash, "--"
4723                        or die_error(undef, "Open git-diff failed");
4724        } else  {
4725                die_error('404 Not Found', "Missing one of the blob diff parameters")
4726                        unless %diffinfo;
4727        }
4728
4729        # header
4730        if ($format eq 'html') {
4731                my $formats_nav =
4732                        $cgi->a({-href => href(action=>"blobdiff_plain",
4733                                               hash=>$hash, hash_parent=>$hash_parent,
4734                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4735                                               file_name=>$file_name, file_parent=>$file_parent)},
4736                                "raw");
4737                git_header_html(undef, $expires);
4738                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4739                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4740                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4741                } else {
4742                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4743                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4744                }
4745                if (defined $file_name) {
4746                        git_print_page_path($file_name, "blob", $hash_base);
4747                } else {
4748                        print "<div class=\"page_path\"></div>\n";
4749                }
4750
4751        } elsif ($format eq 'plain') {
4752                print $cgi->header(
4753                        -type => 'text/plain',
4754                        -charset => 'utf-8',
4755                        -expires => $expires,
4756                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4757
4758                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4759
4760        } else {
4761                die_error(undef, "Unknown blobdiff format");
4762        }
4763
4764        # patch
4765        if ($format eq 'html') {
4766                print "<div class=\"page_body\">\n";
4767
4768                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4769                close $fd;
4770
4771                print "</div>\n"; # class="page_body"
4772                git_footer_html();
4773
4774        } else {
4775                while (my $line = <$fd>) {
4776                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4777                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4778
4779                        print $line;
4780
4781                        last if $line =~ m!^\+\+\+!;
4782                }
4783                local $/ = undef;
4784                print <$fd>;
4785                close $fd;
4786        }
4787}
4788
4789sub git_blobdiff_plain {
4790        git_blobdiff('plain');
4791}
4792
4793sub git_commitdiff {
4794        my $format = shift || 'html';
4795        $hash ||= $hash_base || "HEAD";
4796        my %co = parse_commit($hash);
4797        if (!%co) {
4798                die_error(undef, "Unknown commit object");
4799        }
4800
4801        # choose format for commitdiff for merge
4802        if (! defined $hash_parent && @{$co{'parents'}} > 1) {
4803                $hash_parent = '--cc';
4804        }
4805        # we need to prepare $formats_nav before almost any parameter munging
4806        my $formats_nav;
4807        if ($format eq 'html') {
4808                $formats_nav =
4809                        $cgi->a({-href => href(action=>"commitdiff_plain",
4810                                               hash=>$hash, hash_parent=>$hash_parent)},
4811                                "raw");
4812
4813                if (defined $hash_parent &&
4814                    $hash_parent ne '-c' && $hash_parent ne '--cc') {
4815                        # commitdiff with two commits given
4816                        my $hash_parent_short = $hash_parent;
4817                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4818                                $hash_parent_short = substr($hash_parent, 0, 7);
4819                        }
4820                        $formats_nav .=
4821                                ' (from';
4822                        for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
4823                                if ($co{'parents'}[$i] eq $hash_parent) {
4824                                        $formats_nav .= ' parent ' . ($i+1);
4825                                        last;
4826                                }
4827                        }
4828                        $formats_nav .= ': ' .
4829                                $cgi->a({-href => href(action=>"commitdiff",
4830                                                       hash=>$hash_parent)},
4831                                        esc_html($hash_parent_short)) .
4832                                ')';
4833                } elsif (!$co{'parent'}) {
4834                        # --root commitdiff
4835                        $formats_nav .= ' (initial)';
4836                } elsif (scalar @{$co{'parents'}} == 1) {
4837                        # single parent commit
4838                        $formats_nav .=
4839                                ' (parent: ' .
4840                                $cgi->a({-href => href(action=>"commitdiff",
4841                                                       hash=>$co{'parent'})},
4842                                        esc_html(substr($co{'parent'}, 0, 7))) .
4843                                ')';
4844                } else {
4845                        # merge commit
4846                        if ($hash_parent eq '--cc') {
4847                                $formats_nav .= ' | ' .
4848                                        $cgi->a({-href => href(action=>"commitdiff",
4849                                                               hash=>$hash, hash_parent=>'-c')},
4850                                                'combined');
4851                        } else { # $hash_parent eq '-c'
4852                                $formats_nav .= ' | ' .
4853                                        $cgi->a({-href => href(action=>"commitdiff",
4854                                                               hash=>$hash, hash_parent=>'--cc')},
4855                                                'compact');
4856                        }
4857                        $formats_nav .=
4858                                ' (merge: ' .
4859                                join(' ', map {
4860                                        $cgi->a({-href => href(action=>"commitdiff",
4861                                                               hash=>$_)},
4862                                                esc_html(substr($_, 0, 7)));
4863                                } @{$co{'parents'}} ) .
4864                                ')';
4865                }
4866        }
4867
4868        my $hash_parent_param = $hash_parent;
4869        if (!defined $hash_parent_param) {
4870                # --cc for multiple parents, --root for parentless
4871                $hash_parent_param =
4872                        @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
4873        }
4874
4875        # read commitdiff
4876        my $fd;
4877        my @difftree;
4878        if ($format eq 'html') {
4879                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4880                        "--no-commit-id", "--patch-with-raw", "--full-index",
4881                        $hash_parent_param, $hash, "--"
4882                        or die_error(undef, "Open git-diff-tree failed");
4883
4884                while (my $line = <$fd>) {
4885                        chomp $line;
4886                        # empty line ends raw part of diff-tree output
4887                        last unless $line;
4888                        push @difftree, scalar parse_difftree_raw_line($line);
4889                }
4890
4891        } elsif ($format eq 'plain') {
4892                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4893                        '-p', $hash_parent_param, $hash, "--"
4894                        or die_error(undef, "Open git-diff-tree failed");
4895
4896        } else {
4897                die_error(undef, "Unknown commitdiff format");
4898        }
4899
4900        # non-textual hash id's can be cached
4901        my $expires;
4902        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4903                $expires = "+1d";
4904        }
4905
4906        # write commit message
4907        if ($format eq 'html') {
4908                my $refs = git_get_references();
4909                my $ref = format_ref_marker($refs, $co{'id'});
4910
4911                git_header_html(undef, $expires);
4912                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4913                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4914                git_print_authorship(\%co);
4915                print "<div class=\"page_body\">\n";
4916                if (@{$co{'comment'}} > 1) {
4917                        print "<div class=\"log\">\n";
4918                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4919                        print "</div>\n"; # class="log"
4920                }
4921
4922        } elsif ($format eq 'plain') {
4923                my $refs = git_get_references("tags");
4924                my $tagname = git_get_rev_name_tags($hash);
4925                my $filename = basename($project) . "-$hash.patch";
4926
4927                print $cgi->header(
4928                        -type => 'text/plain',
4929                        -charset => 'utf-8',
4930                        -expires => $expires,
4931                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4932                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4933                print <<TEXT;
4934From: $co{'author'}
4935Date: $ad{'rfc2822'} ($ad{'tz_local'})
4936Subject: $co{'title'}
4937TEXT
4938                print "X-Git-Tag: $tagname\n" if $tagname;
4939                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4940
4941                foreach my $line (@{$co{'comment'}}) {
4942                        print "$line\n";
4943                }
4944                print "---\n\n";
4945        }
4946
4947        # write patch
4948        if ($format eq 'html') {
4949                my $use_parents = !defined $hash_parent ||
4950                        $hash_parent eq '-c' || $hash_parent eq '--cc';
4951                git_difftree_body(\@difftree, $hash,
4952                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4953                print "<br/>\n";
4954
4955                git_patchset_body($fd, \@difftree, $hash,
4956                                  $use_parents ? @{$co{'parents'}} : $hash_parent);
4957                close $fd;
4958                print "</div>\n"; # class="page_body"
4959                git_footer_html();
4960
4961        } elsif ($format eq 'plain') {
4962                local $/ = undef;
4963                print <$fd>;
4964                close $fd
4965                        or print "Reading git-diff-tree failed\n";
4966        }
4967}
4968
4969sub git_commitdiff_plain {
4970        git_commitdiff('plain');
4971}
4972
4973sub git_history {
4974        if (!defined $hash_base) {
4975                $hash_base = git_get_head_hash($project);
4976        }
4977        if (!defined $page) {
4978                $page = 0;
4979        }
4980        my $ftype;
4981        my %co = parse_commit($hash_base);
4982        if (!%co) {
4983                die_error(undef, "Unknown commit object");
4984        }
4985
4986        my $refs = git_get_references();
4987        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4988
4989        if (!defined $hash && defined $file_name) {
4990                $hash = git_get_hash_by_path($hash_base, $file_name);
4991        }
4992        if (defined $hash) {
4993                $ftype = git_get_type($hash);
4994        }
4995
4996        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4997
4998        my $paging_nav = '';
4999        if ($page > 0) {
5000                $paging_nav .=
5001                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5002                                               file_name=>$file_name)},
5003                                "first");
5004                $paging_nav .= " &sdot; " .
5005                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5006                                               file_name=>$file_name, page=>$page-1),
5007                                 -accesskey => "p", -title => "Alt-p"}, "prev");
5008        } else {
5009                $paging_nav .= "first";
5010                $paging_nav .= " &sdot; prev";
5011        }
5012        if ($#commitlist >= 100) {
5013                $paging_nav .= " &sdot; " .
5014                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5015                                               file_name=>$file_name, page=>$page+1),
5016                                 -accesskey => "n", -title => "Alt-n"}, "next");
5017        } else {
5018                $paging_nav .= " &sdot; next";
5019        }
5020        my $next_link = '';
5021        if ($#commitlist >= 100) {
5022                $next_link =
5023                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5024                                               file_name=>$file_name, page=>$page+1),
5025                                 -accesskey => "n", -title => "Alt-n"}, "next");
5026        }
5027
5028        git_header_html();
5029        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
5030        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5031        git_print_page_path($file_name, $ftype, $hash_base);
5032
5033        git_history_body(\@commitlist, 0, 99,
5034                         $refs, $hash_base, $ftype, $next_link);
5035
5036        git_footer_html();
5037}
5038
5039sub git_search {
5040        my ($have_search) = gitweb_check_feature('search');
5041        if (!$have_search) {
5042                die_error('403 Permission denied', "Permission denied");
5043        }
5044        if (!defined $searchtext) {
5045                die_error(undef, "Text field empty");
5046        }
5047        if (!defined $hash) {
5048                $hash = git_get_head_hash($project);
5049        }
5050        my %co = parse_commit($hash);
5051        if (!%co) {
5052                die_error(undef, "Unknown commit object");
5053        }
5054        if (!defined $page) {
5055                $page = 0;
5056        }
5057
5058        $searchtype ||= 'commit';
5059        if ($searchtype eq 'pickaxe') {
5060                # pickaxe may take all resources of your box and run for several minutes
5061                # with every query - so decide by yourself how public you make this feature
5062                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5063                if (!$have_pickaxe) {
5064                        die_error('403 Permission denied', "Permission denied");
5065                }
5066        }
5067        if ($searchtype eq 'grep') {
5068                my ($have_grep) = gitweb_check_feature('grep');
5069                if (!$have_grep) {
5070                        die_error('403 Permission denied', "Permission denied");
5071                }
5072        }
5073
5074        git_header_html();
5075
5076        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
5077                my $greptype;
5078                if ($searchtype eq 'commit') {
5079                        $greptype = "--grep=";
5080                } elsif ($searchtype eq 'author') {
5081                        $greptype = "--author=";
5082                } elsif ($searchtype eq 'committer') {
5083                        $greptype = "--committer=";
5084                }
5085                $greptype .= $search_regexp;
5086                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
5087
5088                my $paging_nav = '';
5089                if ($page > 0) {
5090                        $paging_nav .=
5091                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5092                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
5093                                        "first");
5094                        $paging_nav .= " &sdot; " .
5095                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5096                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5097                                                       page=>$page-1),
5098                                         -accesskey => "p", -title => "Alt-p"}, "prev");
5099                } else {
5100                        $paging_nav .= "first";
5101                        $paging_nav .= " &sdot; prev";
5102                }
5103                if ($#commitlist >= 100) {
5104                        $paging_nav .= " &sdot; " .
5105                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5106                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5107                                                       page=>$page+1),
5108                                         -accesskey => "n", -title => "Alt-n"}, "next");
5109                } else {
5110                        $paging_nav .= " &sdot; next";
5111                }
5112                my $next_link = '';
5113                if ($#commitlist >= 100) {
5114                        $next_link =
5115                                $cgi->a({-href => href(action=>"search", hash=>$hash,
5116                                                       searchtext=>$searchtext, searchtype=>$searchtype,
5117                                                       page=>$page+1),
5118                                         -accesskey => "n", -title => "Alt-n"}, "next");
5119                }
5120
5121                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
5122                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5123                git_search_grep_body(\@commitlist, 0, 99, $next_link);
5124        }
5125
5126        if ($searchtype eq 'pickaxe') {
5127                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5128                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5129
5130                print "<table cellspacing=\"0\">\n";
5131                my $alternate = 1;
5132                $/ = "\n";
5133                my $git_command = git_cmd_str();
5134                my $searchqtext = $searchtext;
5135                $searchqtext =~ s/'/'\\''/;
5136                open my $fd, "-|", "$git_command rev-list $hash | " .
5137                        "$git_command diff-tree -r --stdin -S\'$searchqtext\'";
5138                undef %co;
5139                my @files;
5140                while (my $line = <$fd>) {
5141                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
5142                                my %set;
5143                                $set{'file'} = $6;
5144                                $set{'from_id'} = $3;
5145                                $set{'to_id'} = $4;
5146                                $set{'id'} = $set{'to_id'};
5147                                if ($set{'id'} =~ m/0{40}/) {
5148                                        $set{'id'} = $set{'from_id'};
5149                                }
5150                                if ($set{'id'} =~ m/0{40}/) {
5151                                        next;
5152                                }
5153                                push @files, \%set;
5154                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
5155                                if (%co) {
5156                                        if ($alternate) {
5157                                                print "<tr class=\"dark\">\n";
5158                                        } else {
5159                                                print "<tr class=\"light\">\n";
5160                                        }
5161                                        $alternate ^= 1;
5162                                        my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
5163                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
5164                                              "<td><i>" . $author . "</i></td>\n" .
5165                                              "<td>" .
5166                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
5167                                                      -class => "list subject"},
5168                                                      chop_and_escape_str($co{'title'}, 50) . "<br/>");
5169                                        while (my $setref = shift @files) {
5170                                                my %set = %$setref;
5171                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
5172                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
5173                                                              -class => "list"},
5174                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
5175                                                      "<br/>\n";
5176                                        }
5177                                        print "</td>\n" .
5178                                              "<td class=\"link\">" .
5179                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5180                                              " | " .
5181                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5182                                        print "</td>\n" .
5183                                              "</tr>\n";
5184                                }
5185                                %co = parse_commit($1);
5186                        }
5187                }
5188                close $fd;
5189
5190                print "</table>\n";
5191        }
5192
5193        if ($searchtype eq 'grep') {
5194                git_print_page_nav('','', $hash,$co{'tree'},$hash);
5195                git_print_header_div('commit', esc_html($co{'title'}), $hash);
5196
5197                print "<table cellspacing=\"0\">\n";
5198                my $alternate = 1;
5199                my $matches = 0;
5200                $/ = "\n";
5201                open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'};
5202                my $lastfile = '';
5203                while (my $line = <$fd>) {
5204                        chomp $line;
5205                        my ($file, $lno, $ltext, $binary);
5206                        last if ($matches++ > 1000);
5207                        if ($line =~ /^Binary file (.+) matches$/) {
5208                                $file = $1;
5209                                $binary = 1;
5210                        } else {
5211                                (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
5212                        }
5213                        if ($file ne $lastfile) {
5214                                $lastfile and print "</td></tr>\n";
5215                                if ($alternate++) {
5216                                        print "<tr class=\"dark\">\n";
5217                                } else {
5218                                        print "<tr class=\"light\">\n";
5219                                }
5220                                print "<td class=\"list\">".
5221                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5222                                                               file_name=>"$file"),
5223                                                -class => "list"}, esc_path($file));
5224                                print "</td><td>\n";
5225                                $lastfile = $file;
5226                        }
5227                        if ($binary) {
5228                                print "<div class=\"binary\">Binary file</div>\n";
5229                        } else {
5230                                $ltext = untabify($ltext);
5231                                if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) {
5232                                        $ltext = esc_html($1, -nbsp=>1);
5233                                        $ltext .= '<span class="match">';
5234                                        $ltext .= esc_html($2, -nbsp=>1);
5235                                        $ltext .= '</span>';
5236                                        $ltext .= esc_html($3, -nbsp=>1);
5237                                } else {
5238                                        $ltext = esc_html($ltext, -nbsp=>1);
5239                                }
5240                                print "<div class=\"pre\">" .
5241                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5242                                                               file_name=>"$file").'#l'.$lno,
5243                                                -class => "linenr"}, sprintf('%4i', $lno))
5244                                        . ' ' .  $ltext . "</div>\n";
5245                        }
5246                }
5247                if ($lastfile) {
5248                        print "</td></tr>\n";
5249                        if ($matches > 1000) {
5250                                print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5251                        }
5252                } else {
5253                        print "<div class=\"diff nodifferences\">No matches found</div>\n";
5254                }
5255                close $fd;
5256
5257                print "</table>\n";
5258        }
5259        git_footer_html();
5260}
5261
5262sub git_search_help {
5263        git_header_html();
5264        git_print_page_nav('','', $hash,$hash,$hash);
5265        print <<EOT;
5266<dl>
5267<dt><b>commit</b></dt>
5268<dd>The commit messages and authorship information will be scanned for the given string.</dd>
5269EOT
5270        my ($have_grep) = gitweb_check_feature('grep');
5271        if ($have_grep) {
5272                print <<EOT;
5273<dt><b>grep</b></dt>
5274<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5275    a different one) are searched for the given
5276<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a>
5277(POSIX extended) and the matches are listed. On large
5278trees, this search can take a while and put some strain on the server, so please use it with
5279some consideration.</dd>
5280EOT
5281        }
5282        print <<EOT;
5283<dt><b>author</b></dt>
5284<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
5285<dt><b>committer</b></dt>
5286<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
5287EOT
5288        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5289        if ($have_pickaxe) {
5290                print <<EOT;
5291<dt><b>pickaxe</b></dt>
5292<dd>All commits that caused the string to appear or disappear from any file (changes that
5293added, removed or "modified" the string) will be listed. This search can take a while and
5294takes a lot of strain on the server, so please use it wisely.</dd>
5295EOT
5296        }
5297        print "</dl>\n";
5298        git_footer_html();
5299}
5300
5301sub git_shortlog {
5302        my $head = git_get_head_hash($project);
5303        if (!defined $hash) {
5304                $hash = $head;
5305        }
5306        if (!defined $page) {
5307                $page = 0;
5308        }
5309        my $refs = git_get_references();
5310
5311        my @commitlist = parse_commits($hash, 101, (100 * $page));
5312
5313        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
5314        my $next_link = '';
5315        if ($#commitlist >= 100) {
5316                $next_link =
5317                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
5318                                 -accesskey => "n", -title => "Alt-n"}, "next");
5319        }
5320
5321        git_header_html();
5322        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5323        git_print_header_div('summary', $project);
5324
5325        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5326
5327        git_footer_html();
5328}
5329
5330## ......................................................................
5331## feeds (RSS, Atom; OPML)
5332
5333sub git_feed {
5334        my $format = shift || 'atom';
5335        my ($have_blame) = gitweb_check_feature('blame');
5336
5337        # Atom: http://www.atomenabled.org/developers/syndication/
5338        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5339        if ($format ne 'rss' && $format ne 'atom') {
5340                die_error(undef, "Unknown web feed format");
5341        }
5342
5343        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5344        my $head = $hash || 'HEAD';
5345        my @commitlist = parse_commits($head, 150, 0, undef, $file_name);
5346
5347        my %latest_commit;
5348        my %latest_date;
5349        my $content_type = "application/$format+xml";
5350        if (defined $cgi->http('HTTP_ACCEPT') &&
5351                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5352                # browser (feed reader) prefers text/xml
5353                $content_type = 'text/xml';
5354        }
5355        if (defined($commitlist[0])) {
5356                %latest_commit = %{$commitlist[0]};
5357                %latest_date   = parse_date($latest_commit{'author_epoch'});
5358                print $cgi->header(
5359                        -type => $content_type,
5360                        -charset => 'utf-8',
5361                        -last_modified => $latest_date{'rfc2822'});
5362        } else {
5363                print $cgi->header(
5364                        -type => $content_type,
5365                        -charset => 'utf-8');
5366        }
5367
5368        # Optimization: skip generating the body if client asks only
5369        # for Last-Modified date.
5370        return if ($cgi->request_method() eq 'HEAD');
5371
5372        # header variables
5373        my $title = "$site_name - $project/$action";
5374        my $feed_type = 'log';
5375        if (defined $hash) {
5376                $title .= " - '$hash'";
5377                $feed_type = 'branch log';
5378                if (defined $file_name) {
5379                        $title .= " :: $file_name";
5380                        $feed_type = 'history';
5381                }
5382        } elsif (defined $file_name) {
5383                $title .= " - $file_name";
5384                $feed_type = 'history';
5385        }
5386        $title .= " $feed_type";
5387        my $descr = git_get_project_description($project);
5388        if (defined $descr) {
5389                $descr = esc_html($descr);
5390        } else {
5391                $descr = "$project " .
5392                         ($format eq 'rss' ? 'RSS' : 'Atom') .
5393                         " feed";
5394        }
5395        my $owner = git_get_project_owner($project);
5396        $owner = esc_html($owner);
5397
5398        #header
5399        my $alt_url;
5400        if (defined $file_name) {
5401                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5402        } elsif (defined $hash) {
5403                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5404        } else {
5405                $alt_url = href(-full=>1, action=>"summary");
5406        }
5407        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5408        if ($format eq 'rss') {
5409                print <<XML;
5410<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5411<channel>
5412XML
5413                print "<title>$title</title>\n" .
5414                      "<link>$alt_url</link>\n" .
5415                      "<description>$descr</description>\n" .
5416                      "<language>en</language>\n";
5417        } elsif ($format eq 'atom') {
5418                print <<XML;
5419<feed xmlns="http://www.w3.org/2005/Atom">
5420XML
5421                print "<title>$title</title>\n" .
5422                      "<subtitle>$descr</subtitle>\n" .
5423                      '<link rel="alternate" type="text/html" href="' .
5424                      $alt_url . '" />' . "\n" .
5425                      '<link rel="self" type="' . $content_type . '" href="' .
5426                      $cgi->self_url() . '" />' . "\n" .
5427                      "<id>" . href(-full=>1) . "</id>\n" .
5428                      # use project owner for feed author
5429                      "<author><name>$owner</name></author>\n";
5430                if (defined $favicon) {
5431                        print "<icon>" . esc_url($favicon) . "</icon>\n";
5432                }
5433                if (defined $logo_url) {
5434                        # not twice as wide as tall: 72 x 27 pixels
5435                        print "<logo>" . esc_url($logo) . "</logo>\n";
5436                }
5437                if (! %latest_date) {
5438                        # dummy date to keep the feed valid until commits trickle in:
5439                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
5440                } else {
5441                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
5442                }
5443        }
5444
5445        # contents
5446        for (my $i = 0; $i <= $#commitlist; $i++) {
5447                my %co = %{$commitlist[$i]};
5448                my $commit = $co{'id'};
5449                # we read 150, we always show 30 and the ones more recent than 48 hours
5450                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5451                        last;
5452                }
5453                my %cd = parse_date($co{'author_epoch'});
5454
5455                # get list of changed files
5456                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5457                        $co{'parent'} || "--root",
5458                        $co{'id'}, "--", (defined $file_name ? $file_name : ())
5459                        or next;
5460                my @difftree = map { chomp; $_ } <$fd>;
5461                close $fd
5462                        or next;
5463
5464                # print element (entry, item)
5465                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
5466                if ($format eq 'rss') {
5467                        print "<item>\n" .
5468                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
5469                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
5470                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5471                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5472                              "<link>$co_url</link>\n" .
5473                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
5474                              "<content:encoded>" .
5475                              "<![CDATA[\n";
5476                } elsif ($format eq 'atom') {
5477                        print "<entry>\n" .
5478                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5479                              "<updated>$cd{'iso-8601'}</updated>\n" .
5480                              "<author>\n" .
5481                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5482                        if ($co{'author_email'}) {
5483                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5484                        }
5485                        print "</author>\n" .
5486                              # use committer for contributor
5487                              "<contributor>\n" .
5488                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5489                        if ($co{'committer_email'}) {
5490                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5491                        }
5492                        print "</contributor>\n" .
5493                              "<published>$cd{'iso-8601'}</published>\n" .
5494                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5495                              "<id>$co_url</id>\n" .
5496                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5497                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5498                }
5499                my $comment = $co{'comment'};
5500                print "<pre>\n";
5501                foreach my $line (@$comment) {
5502                        $line = esc_html($line);
5503                        print "$line\n";
5504                }
5505                print "</pre><ul>\n";
5506                foreach my $difftree_line (@difftree) {
5507                        my %difftree = parse_difftree_raw_line($difftree_line);
5508                        next if !$difftree{'from_id'};
5509
5510                        my $file = $difftree{'file'} || $difftree{'to_file'};
5511
5512                        print "<li>" .
5513                              "[" .
5514                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5515                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5516                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5517                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
5518                                      -title => "diff"}, 'D');
5519                        if ($have_blame) {
5520                                print $cgi->a({-href => href(-full=>1, action=>"blame",
5521                                                             file_name=>$file, hash_base=>$commit),
5522                                              -title => "blame"}, 'B');
5523                        }
5524                        # if this is not a feed of a file history
5525                        if (!defined $file_name || $file_name ne $file) {
5526                                print $cgi->a({-href => href(-full=>1, action=>"history",
5527                                                             file_name=>$file, hash=>$commit),
5528                                              -title => "history"}, 'H');
5529                        }
5530                        $file = esc_path($file);
5531                        print "] ".
5532                              "$file</li>\n";
5533                }
5534                if ($format eq 'rss') {
5535                        print "</ul>]]>\n" .
5536                              "</content:encoded>\n" .
5537                              "</item>\n";
5538                } elsif ($format eq 'atom') {
5539                        print "</ul>\n</div>\n" .
5540                              "</content>\n" .
5541                              "</entry>\n";
5542                }
5543        }
5544
5545        # end of feed
5546        if ($format eq 'rss') {
5547                print "</channel>\n</rss>\n";
5548        }       elsif ($format eq 'atom') {
5549                print "</feed>\n";
5550        }
5551}
5552
5553sub git_rss {
5554        git_feed('rss');
5555}
5556
5557sub git_atom {
5558        git_feed('atom');
5559}
5560
5561sub git_opml {
5562        my @list = git_get_projects_list();
5563
5564        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5565        print <<XML;
5566<?xml version="1.0" encoding="utf-8"?>
5567<opml version="1.0">
5568<head>
5569  <title>$site_name OPML Export</title>
5570</head>
5571<body>
5572<outline text="git RSS feeds">
5573XML
5574
5575        foreach my $pr (@list) {
5576                my %proj = %$pr;
5577                my $head = git_get_head_hash($proj{'path'});
5578                if (!defined $head) {
5579                        next;
5580                }
5581                $git_dir = "$projectroot/$proj{'path'}";
5582                my %co = parse_commit($head);
5583                if (!%co) {
5584                        next;
5585                }
5586
5587                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5588                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5589                my $html = "$my_url?p=$proj{'path'};a=summary";
5590                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5591        }
5592        print <<XML;
5593</outline>
5594</body>
5595</opml>
5596XML
5597}