Andrew's git - gitweb.git/blob - gitweb/gitweb.perl

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