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, @parents) = @_;
1062        my $line;
1063        my $result = '';
1064
1065        $line = $from_line;
1066        #assert($line =~ m/^---/) if DEBUG;
1067        # no extra formatting for "^--- /dev/null"
1068        if (! $diffinfo->{'nparents'}) {
1069                # ordinary (single parent) diff
1070                if ($line =~ m!^--- "?a/!) {
1071                        if ($from->{'href'}) {
1072                                $line = '--- a/' .
1073                                        $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1074                                                esc_path($from->{'file'}));
1075                        } else {
1076                                $line = '--- a/' .
1077                                        esc_path($from->{'file'});
1078                        }
1079                }
1080                $result .= qq!<div class="diff from_file">$line</div>\n!;
1081
1082        } else {
1083                # combined diff (merge commit)
1084                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1085                        if ($from->{'href'}[$i]) {
1086                                $line = '--- ' .
1087                                        $cgi->a({-href=>href(action=>"blobdiff",
1088                                                             hash_parent=>$diffinfo->{'from_id'}[$i],
1089                                                             hash_parent_base=>$parents[$i],
1090                                                             file_parent=>$from->{'file'}[$i],
1091                                                             hash=>$diffinfo->{'to_id'},
1092                                                             hash_base=>$hash,
1093                                                             file_name=>$to->{'file'}),
1094                                                 -class=>"path",
1095                                                 -title=>"diff" . ($i+1)},
1096                                                $i+1) .
1097                                        '/' .
1098                                        $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1099                                                esc_path($from->{'file'}[$i]));
1100                        } else {
1101                                $line = '--- /dev/null';
1102                        }
1103                        $result .= qq!<div class="diff from_file">$line</div>\n!;
1104                }
1105        }
1106
1107        $line = $to_line;
1108        #assert($line =~ m/^\+\+\+/) if DEBUG;
1109        # no extra formatting for "^+++ /dev/null"
1110        if ($line =~ m!^\+\+\+ "?b/!) {
1111                if ($to->{'href'}) {
1112                        $line = '+++ b/' .
1113                                $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1114                                        esc_path($to->{'file'}));
1115                } else {
1116                        $line = '+++ b/' .
1117                                esc_path($to->{'file'});
1118                }
1119        }
1120        $result .= qq!<div class="diff to_file">$line</div>\n!;
1121
1122        return $result;
1123}
1124
1125# format patch (diff) line (not to be used for diff headers)
1126sub format_diff_line {
1127        my $line = shift;
1128        my ($from, $to) = @_;
1129        my $diff_class = "";
1130
1131        chomp $line;
1132
1133        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1134                # combined diff
1135                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1136                if ($line =~ m/^\@{3}/) {
1137                        $diff_class = " chunk_header";
1138                } elsif ($line =~ m/^\\/) {
1139                        $diff_class = " incomplete";
1140                } elsif ($prefix =~ tr/+/+/) {
1141                        $diff_class = " add";
1142                } elsif ($prefix =~ tr/-/-/) {
1143                        $diff_class = " rem";
1144                }
1145        } else {
1146                # assume ordinary diff
1147                my $char = substr($line, 0, 1);
1148                if ($char eq '+') {
1149                        $diff_class = " add";
1150                } elsif ($char eq '-') {
1151                        $diff_class = " rem";
1152                } elsif ($char eq '@') {
1153                        $diff_class = " chunk_header";
1154                } elsif ($char eq "\\") {
1155                        $diff_class = " incomplete";
1156                }
1157        }
1158        $line = untabify($line);
1159        if ($from && $to && $line =~ m/^\@{2} /) {
1160                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1161                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1162
1163                $from_lines = 0 unless defined $from_lines;
1164                $to_lines   = 0 unless defined $to_lines;
1165
1166                if ($from->{'href'}) {
1167                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1168                                             -class=>"list"}, $from_text);
1169                }
1170                if ($to->{'href'}) {
1171                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1172                                             -class=>"list"}, $to_text);
1173                }
1174                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1175                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1176                return "<div class=\"diff$diff_class\">$line</div>\n";
1177        } elsif ($from && $to && $line =~ m/^\@{3}/) {
1178                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1179                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1180
1181                @from_text = split(' ', $ranges);
1182                for (my $i = 0; $i < @from_text; ++$i) {
1183                        ($from_start[$i], $from_nlines[$i]) =
1184                                (split(',', substr($from_text[$i], 1)), 0);
1185                }
1186
1187                $to_text   = pop @from_text;
1188                $to_start  = pop @from_start;
1189                $to_nlines = pop @from_nlines;
1190
1191                $line = "<span class=\"chunk_info\">$prefix ";
1192                for (my $i = 0; $i < @from_text; ++$i) {
1193                        if ($from->{'href'}[$i]) {
1194                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1195                                                  -class=>"list"}, $from_text[$i]);
1196                        } else {
1197                                $line .= $from_text[$i];
1198                        }
1199                        $line .= " ";
1200                }
1201                if ($to->{'href'}) {
1202                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1203                                          -class=>"list"}, $to_text);
1204                } else {
1205                        $line .= $to_text;
1206                }
1207                $line .= " $prefix</span>" .
1208                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1209                return "<div class=\"diff$diff_class\">$line</div>\n";
1210        }
1211        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1212}
1213
1214## ----------------------------------------------------------------------
1215## git utility subroutines, invoking git commands
1216
1217# returns path to the core git executable and the --git-dir parameter as list
1218sub git_cmd {
1219        return $GIT, '--git-dir='.$git_dir;
1220}
1221
1222# returns path to the core git executable and the --git-dir parameter as string
1223sub git_cmd_str {
1224        return join(' ', git_cmd());
1225}
1226
1227# get HEAD ref of given project as hash
1228sub git_get_head_hash {
1229        my $project = shift;
1230        my $o_git_dir = $git_dir;
1231        my $retval = undef;
1232        $git_dir = "$projectroot/$project";
1233        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1234                my $head = <$fd>;
1235                close $fd;
1236                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1237                        $retval = $1;
1238                }
1239        }
1240        if (defined $o_git_dir) {
1241                $git_dir = $o_git_dir;
1242        }
1243        return $retval;
1244}
1245
1246# get type of given object
1247sub git_get_type {
1248        my $hash = shift;
1249
1250        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1251        my $type = <$fd>;
1252        close $fd or return;
1253        chomp $type;
1254        return $type;
1255}
1256
1257sub git_get_project_config {
1258        my ($key, $type) = @_;
1259
1260        return unless ($key);
1261        $key =~ s/^gitweb\.//;
1262        return if ($key =~ m/\W/);
1263
1264        my @x = (git_cmd(), 'config');
1265        if (defined $type) { push @x, $type; }
1266        push @x, "--get";
1267        push @x, "gitweb.$key";
1268        my $val = qx(@x);
1269        chomp $val;
1270        return ($val);
1271}
1272
1273# get hash of given path at given ref
1274sub git_get_hash_by_path {
1275        my $base = shift;
1276        my $path = shift || return undef;
1277        my $type = shift;
1278
1279        $path =~ s,/+$,,;
1280
1281        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1282                or die_error(undef, "Open git-ls-tree failed");
1283        my $line = <$fd>;
1284        close $fd or return undef;
1285
1286        if (!defined $line) {
1287                # there is no tree or hash given by $path at $base
1288                return undef;
1289        }
1290
1291        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1292        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1293        if (defined $type && $type ne $2) {
1294                # type doesn't match
1295                return undef;
1296        }
1297        return $3;
1298}
1299
1300# get path of entry with given hash at given tree-ish (ref)
1301# used to get 'from' filename for combined diff (merge commit) for renames
1302sub git_get_path_by_hash {
1303        my $base = shift || return;
1304        my $hash = shift || return;
1305
1306        local $/ = "\0";
1307
1308        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1309                or return undef;
1310        while (my $line = <$fd>) {
1311                chomp $line;
1312
1313                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1314                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1315                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1316                        close $fd;
1317                        return $1;
1318                }
1319        }
1320        close $fd;
1321        return undef;
1322}
1323
1324## ......................................................................
1325## git utility functions, directly accessing git repository
1326
1327sub git_get_project_description {
1328        my $path = shift;
1329
1330        open my $fd, "$projectroot/$path/description" or return undef;
1331        my $descr = <$fd>;
1332        close $fd;
1333        if (defined $descr) {
1334                chomp $descr;
1335        }
1336        return $descr;
1337}
1338
1339sub git_get_project_url_list {
1340        my $path = shift;
1341
1342        open my $fd, "$projectroot/$path/cloneurl" or return;
1343        my @git_project_url_list = map { chomp; $_ } <$fd>;
1344        close $fd;
1345
1346        return wantarray ? @git_project_url_list : \@git_project_url_list;
1347}
1348
1349sub git_get_projects_list {
1350        my ($filter) = @_;
1351        my @list;
1352
1353        $filter ||= '';
1354        $filter =~ s/\.git$//;
1355
1356        my ($check_forks) = gitweb_check_feature('forks');
1357
1358        if (-d $projects_list) {
1359                # search in directory
1360                my $dir = $projects_list . ($filter ? "/$filter" : '');
1361                # remove the trailing "/"
1362                $dir =~ s!/+$!!;
1363                my $pfxlen = length("$dir");
1364
1365                File::Find::find({
1366                        follow_fast => 1, # follow symbolic links
1367                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1368                        wanted => sub {
1369                                # skip project-list toplevel, if we get it.
1370                                return if (m!^[/.]$!);
1371                                # only directories can be git repositories
1372                                return unless (-d $_);
1373
1374                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1375                                # we check related file in $projectroot
1376                                if ($check_forks and $subdir =~ m#/.#) {
1377                                        $File::Find::prune = 1;
1378                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1379                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1380                                        $File::Find::prune = 1;
1381                                }
1382                        },
1383                }, "$dir");
1384
1385        } elsif (-f $projects_list) {
1386                # read from file(url-encoded):
1387                # 'git%2Fgit.git Linus+Torvalds'
1388                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1389                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1390                my %paths;
1391                open my ($fd), $projects_list or return;
1392        PROJECT:
1393                while (my $line = <$fd>) {
1394                        chomp $line;
1395                        my ($path, $owner) = split ' ', $line;
1396                        $path = unescape($path);
1397                        $owner = unescape($owner);
1398                        if (!defined $path) {
1399                                next;
1400                        }
1401                        if ($filter ne '') {
1402                                # looking for forks;
1403                                my $pfx = substr($path, 0, length($filter));
1404                                if ($pfx ne $filter) {
1405                                        next PROJECT;
1406                                }
1407                                my $sfx = substr($path, length($filter));
1408                                if ($sfx !~ /^\/.*\.git$/) {
1409                                        next PROJECT;
1410                                }
1411                        } elsif ($check_forks) {
1412                        PATH:
1413                                foreach my $filter (keys %paths) {
1414                                        # looking for forks;
1415                                        my $pfx = substr($path, 0, length($filter));
1416                                        if ($pfx ne $filter) {
1417                                                next PATH;
1418                                        }
1419                                        my $sfx = substr($path, length($filter));
1420                                        if ($sfx !~ /^\/.*\.git$/) {
1421                                                next PATH;
1422                                        }
1423                                        # is a fork, don't include it in
1424                                        # the list
1425                                        next PROJECT;
1426                                }
1427                        }
1428                        if (check_export_ok("$projectroot/$path")) {
1429                                my $pr = {
1430                                        path => $path,
1431                                        owner => to_utf8($owner),
1432                                };
1433                                push @list, $pr;
1434                                (my $forks_path = $path) =~ s/\.git$//;
1435                                $paths{$forks_path}++;
1436                        }
1437                }
1438                close $fd;
1439        }
1440        return @list;
1441}
1442
1443sub git_get_project_owner {
1444        my $project = shift;
1445        my $owner;
1446
1447        return undef unless $project;
1448
1449        # read from file (url-encoded):
1450        # 'git%2Fgit.git Linus+Torvalds'
1451        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1452        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1453        if (-f $projects_list) {
1454                open (my $fd , $projects_list);
1455                while (my $line = <$fd>) {
1456                        chomp $line;
1457                        my ($pr, $ow) = split ' ', $line;
1458                        $pr = unescape($pr);
1459                        $ow = unescape($ow);
1460                        if ($pr eq $project) {
1461                                $owner = to_utf8($ow);
1462                                last;
1463                        }
1464                }
1465                close $fd;
1466        }
1467        if (!defined $owner) {
1468                $owner = get_file_owner("$projectroot/$project");
1469        }
1470
1471        return $owner;
1472}
1473
1474sub git_get_last_activity {
1475        my ($path) = @_;
1476        my $fd;
1477
1478        $git_dir = "$projectroot/$path";
1479        open($fd, "-|", git_cmd(), 'for-each-ref',
1480             '--format=%(committer)',
1481             '--sort=-committerdate',
1482             '--count=1',
1483             'refs/heads') or return;
1484        my $most_recent = <$fd>;
1485        close $fd or return;
1486        if (defined $most_recent &&
1487            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1488                my $timestamp = $1;
1489                my $age = time - $timestamp;
1490                return ($age, age_string($age));
1491        }
1492}
1493
1494sub git_get_references {
1495        my $type = shift || "";
1496        my %refs;
1497        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1498        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1499        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1500                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1501                or return;
1502
1503        while (my $line = <$fd>) {
1504                chomp $line;
1505                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1506                        if (defined $refs{$1}) {
1507                                push @{$refs{$1}}, $2;
1508                        } else {
1509                                $refs{$1} = [ $2 ];
1510                        }
1511                }
1512        }
1513        close $fd or return;
1514        return \%refs;
1515}
1516
1517sub git_get_rev_name_tags {
1518        my $hash = shift || return undef;
1519
1520        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1521                or return;
1522        my $name_rev = <$fd>;
1523        close $fd;
1524
1525        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1526                return $1;
1527        } else {
1528                # catches also '$hash undefined' output
1529                return undef;
1530        }
1531}
1532
1533## ----------------------------------------------------------------------
1534## parse to hash functions
1535
1536sub parse_date {
1537        my $epoch = shift;
1538        my $tz = shift || "-0000";
1539
1540        my %date;
1541        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1542        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1543        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1544        $date{'hour'} = $hour;
1545        $date{'minute'} = $min;
1546        $date{'mday'} = $mday;
1547        $date{'day'} = $days[$wday];
1548        $date{'month'} = $months[$mon];
1549        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1550                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1551        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1552                             $mday, $months[$mon], $hour ,$min;
1553        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1554                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1555
1556        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1557        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1558        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1559        $date{'hour_local'} = $hour;
1560        $date{'minute_local'} = $min;
1561        $date{'tz_local'} = $tz;
1562        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1563                                  1900+$year, $mon+1, $mday,
1564                                  $hour, $min, $sec, $tz);
1565        return %date;
1566}
1567
1568sub parse_tag {
1569        my $tag_id = shift;
1570        my %tag;
1571        my @comment;
1572
1573        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1574        $tag{'id'} = $tag_id;
1575        while (my $line = <$fd>) {
1576                chomp $line;
1577                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1578                        $tag{'object'} = $1;
1579                } elsif ($line =~ m/^type (.+)$/) {
1580                        $tag{'type'} = $1;
1581                } elsif ($line =~ m/^tag (.+)$/) {
1582                        $tag{'name'} = $1;
1583                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1584                        $tag{'author'} = $1;
1585                        $tag{'epoch'} = $2;
1586                        $tag{'tz'} = $3;
1587                } elsif ($line =~ m/--BEGIN/) {
1588                        push @comment, $line;
1589                        last;
1590                } elsif ($line eq "") {
1591                        last;
1592                }
1593        }
1594        push @comment, <$fd>;
1595        $tag{'comment'} = \@comment;
1596        close $fd or return;
1597        if (!defined $tag{'name'}) {
1598                return
1599        };
1600        return %tag
1601}
1602
1603sub parse_commit_text {
1604        my ($commit_text, $withparents) = @_;
1605        my @commit_lines = split '\n', $commit_text;
1606        my %co;
1607
1608        pop @commit_lines; # Remove '\0'
1609
1610        if (! @commit_lines) {
1611                return;
1612        }
1613
1614        my $header = shift @commit_lines;
1615        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1616                return;
1617        }
1618        ($co{'id'}, my @parents) = split ' ', $header;
1619        while (my $line = shift @commit_lines) {
1620                last if $line eq "\n";
1621                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1622                        $co{'tree'} = $1;
1623                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1624                        push @parents, $1;
1625                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1626                        $co{'author'} = $1;
1627                        $co{'author_epoch'} = $2;
1628                        $co{'author_tz'} = $3;
1629                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1630                                $co{'author_name'}  = $1;
1631                                $co{'author_email'} = $2;
1632                        } else {
1633                                $co{'author_name'} = $co{'author'};
1634                        }
1635                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1636                        $co{'committer'} = $1;
1637                        $co{'committer_epoch'} = $2;
1638                        $co{'committer_tz'} = $3;
1639                        $co{'committer_name'} = $co{'committer'};
1640                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1641                                $co{'committer_name'}  = $1;
1642                                $co{'committer_email'} = $2;
1643                        } else {
1644                                $co{'committer_name'} = $co{'committer'};
1645                        }
1646                }
1647        }
1648        if (!defined $co{'tree'}) {
1649                return;
1650        };
1651        $co{'parents'} = \@parents;
1652        $co{'parent'} = $parents[0];
1653
1654        foreach my $title (@commit_lines) {
1655                $title =~ s/^    //;
1656                if ($title ne "") {
1657                        $co{'title'} = chop_str($title, 80, 5);
1658                        # remove leading stuff of merges to make the interesting part visible
1659                        if (length($title) > 50) {
1660                                $title =~ s/^Automatic //;
1661                                $title =~ s/^merge (of|with) /Merge ... /i;
1662                                if (length($title) > 50) {
1663                                        $title =~ s/(http|rsync):\/\///;
1664                                }
1665                                if (length($title) > 50) {
1666                                        $title =~ s/(master|www|rsync)\.//;
1667                                }
1668                                if (length($title) > 50) {
1669                                        $title =~ s/kernel.org:?//;
1670                                }
1671                                if (length($title) > 50) {
1672                                        $title =~ s/\/pub\/scm//;
1673                                }
1674                        }
1675                        $co{'title_short'} = chop_str($title, 50, 5);
1676                        last;
1677                }
1678        }
1679        if ($co{'title'} eq "") {
1680                $co{'title'} = $co{'title_short'} = '(no commit message)';
1681        }
1682        # remove added spaces
1683        foreach my $line (@commit_lines) {
1684                $line =~ s/^    //;
1685        }
1686        $co{'comment'} = \@commit_lines;
1687
1688        my $age = time - $co{'committer_epoch'};
1689        $co{'age'} = $age;
1690        $co{'age_string'} = age_string($age);
1691        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1692        if ($age > 60*60*24*7*2) {
1693                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1694                $co{'age_string_age'} = $co{'age_string'};
1695        } else {
1696                $co{'age_string_date'} = $co{'age_string'};
1697                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1698        }
1699        return %co;
1700}
1701
1702sub parse_commit {
1703        my ($commit_id) = @_;
1704        my %co;
1705
1706        local $/ = "\0";
1707
1708        open my $fd, "-|", git_cmd(), "rev-list",
1709                "--parents",
1710                "--header",
1711                "--max-count=1",
1712                $commit_id,
1713                "--",
1714                or die_error(undef, "Open git-rev-list failed");
1715        %co = parse_commit_text(<$fd>, 1);
1716        close $fd;
1717
1718        return %co;
1719}
1720
1721sub parse_commits {
1722        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1723        my @cos;
1724
1725        $maxcount ||= 1;
1726        $skip ||= 0;
1727
1728        local $/ = "\0";
1729
1730        open my $fd, "-|", git_cmd(), "rev-list",
1731                "--header",
1732                ($arg ? ($arg) : ()),
1733                ("--max-count=" . $maxcount),
1734                ("--skip=" . $skip),
1735                $commit_id,
1736                "--",
1737                ($filename ? ($filename) : ())
1738                or die_error(undef, "Open git-rev-list failed");
1739        while (my $line = <$fd>) {
1740                my %co = parse_commit_text($line);
1741                push @cos, \%co;
1742        }
1743        close $fd;
1744
1745        return wantarray ? @cos : \@cos;
1746}
1747
1748# parse ref from ref_file, given by ref_id, with given type
1749sub parse_ref {
1750        my $ref_file = shift;
1751        my $ref_id = shift;
1752        my $type = shift || git_get_type($ref_id);
1753        my %ref_item;
1754
1755        $ref_item{'type'} = $type;
1756        $ref_item{'id'} = $ref_id;
1757        $ref_item{'epoch'} = 0;
1758        $ref_item{'age'} = "unknown";
1759        if ($type eq "tag") {
1760                my %tag = parse_tag($ref_id);
1761                $ref_item{'comment'} = $tag{'comment'};
1762                if ($tag{'type'} eq "commit") {
1763                        my %co = parse_commit($tag{'object'});
1764                        $ref_item{'epoch'} = $co{'committer_epoch'};
1765                        $ref_item{'age'} = $co{'age_string'};
1766                } elsif (defined($tag{'epoch'})) {
1767                        my $age = time - $tag{'epoch'};
1768                        $ref_item{'epoch'} = $tag{'epoch'};
1769                        $ref_item{'age'} = age_string($age);
1770                }
1771                $ref_item{'reftype'} = $tag{'type'};
1772                $ref_item{'name'} = $tag{'name'};
1773                $ref_item{'refid'} = $tag{'object'};
1774        } elsif ($type eq "commit"){
1775                my %co = parse_commit($ref_id);
1776                $ref_item{'reftype'} = "commit";
1777                $ref_item{'name'} = $ref_file;
1778                $ref_item{'title'} = $co{'title'};
1779                $ref_item{'refid'} = $ref_id;
1780                $ref_item{'epoch'} = $co{'committer_epoch'};
1781                $ref_item{'age'} = $co{'age_string'};
1782        } else {
1783                $ref_item{'reftype'} = $type;
1784                $ref_item{'name'} = $ref_file;
1785                $ref_item{'refid'} = $ref_id;
1786        }
1787
1788        return %ref_item;
1789}
1790
1791# parse line of git-diff-tree "raw" output
1792sub parse_difftree_raw_line {
1793        my $line = shift;
1794        my %res;
1795
1796        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1797        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1798        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1799                $res{'from_mode'} = $1;
1800                $res{'to_mode'} = $2;
1801                $res{'from_id'} = $3;
1802                $res{'to_id'} = $4;
1803                $res{'status'} = $5;
1804                $res{'similarity'} = $6;
1805                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1806                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1807                } else {
1808                        $res{'file'} = unquote($7);
1809                }
1810        }
1811        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
1812        # combined diff (for merge commit)
1813        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
1814                $res{'nparents'}  = length($1);
1815                $res{'from_mode'} = [ split(' ', $2) ];
1816                $res{'to_mode'} = pop @{$res{'from_mode'}};
1817                $res{'from_id'} = [ split(' ', $3) ];
1818                $res{'to_id'} = pop @{$res{'from_id'}};
1819                $res{'status'} = [ split('', $4) ];
1820                $res{'to_file'} = unquote($5);
1821        }
1822        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1823        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1824                $res{'commit'} = $1;
1825        }
1826
1827        return wantarray ? %res : \%res;
1828}
1829
1830# parse line of git-ls-tree output
1831sub parse_ls_tree_line ($;%) {
1832        my $line = shift;
1833        my %opts = @_;
1834        my %res;
1835
1836        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1837        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1838
1839        $res{'mode'} = $1;
1840        $res{'type'} = $2;
1841        $res{'hash'} = $3;
1842        if ($opts{'-z'}) {
1843                $res{'name'} = $4;
1844        } else {
1845                $res{'name'} = unquote($4);
1846        }
1847
1848        return wantarray ? %res : \%res;
1849}
1850
1851# generates _two_ hashes, references to which are passed as 2 and 3 argument
1852sub parse_from_to_diffinfo {
1853        my ($diffinfo, $from, $to, @parents) = @_;
1854
1855        if ($diffinfo->{'nparents'}) {
1856                # combined diff
1857                $from->{'file'} = [];
1858                $from->{'href'} = [];
1859                fill_from_file_info($diffinfo, @parents)
1860                        unless exists $diffinfo->{'from_file'};
1861                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1862                        $from->{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
1863                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
1864                                $from->{'href'}[$i] = href(action=>"blob",
1865                                                           hash_base=>$parents[$i],
1866                                                           hash=>$diffinfo->{'from_id'}[$i],
1867                                                           file_name=>$from->{'file'}[$i]);
1868                        } else {
1869                                $from->{'href'}[$i] = undef;
1870                        }
1871                }
1872        } else {
1873                $from->{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
1874                if ($diffinfo->{'status'} ne "A") { # not new (added) file
1875                        $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
1876                                               hash=>$diffinfo->{'from_id'},
1877                                               file_name=>$from->{'file'});
1878                } else {
1879                        delete $from->{'href'};
1880                }
1881        }
1882
1883        $to->{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
1884        if (!is_deleted($diffinfo)) { # file exists in result
1885                $to->{'href'} = href(action=>"blob", hash_base=>$hash,
1886                                     hash=>$diffinfo->{'to_id'},
1887                                     file_name=>$to->{'file'});
1888        } else {
1889                delete $to->{'href'};
1890        }
1891}
1892
1893## ......................................................................
1894## parse to array of hashes functions
1895
1896sub git_get_heads_list {
1897        my $limit = shift;
1898        my @headslist;
1899
1900        open my $fd, '-|', git_cmd(), 'for-each-ref',
1901                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1902                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1903                'refs/heads'
1904                or return;
1905        while (my $line = <$fd>) {
1906                my %ref_item;
1907
1908                chomp $line;
1909                my ($refinfo, $committerinfo) = split(/\0/, $line);
1910                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1911                my ($committer, $epoch, $tz) =
1912                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1913                $name =~ s!^refs/heads/!!;
1914
1915                $ref_item{'name'}  = $name;
1916                $ref_item{'id'}    = $hash;
1917                $ref_item{'title'} = $title || '(no commit message)';
1918                $ref_item{'epoch'} = $epoch;
1919                if ($epoch) {
1920                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1921                } else {
1922                        $ref_item{'age'} = "unknown";
1923                }
1924
1925                push @headslist, \%ref_item;
1926        }
1927        close $fd;
1928
1929        return wantarray ? @headslist : \@headslist;
1930}
1931
1932sub git_get_tags_list {
1933        my $limit = shift;
1934        my @tagslist;
1935
1936        open my $fd, '-|', git_cmd(), 'for-each-ref',
1937                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1938                '--format=%(objectname) %(objecttype) %(refname) '.
1939                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1940                'refs/tags'
1941                or return;
1942        while (my $line = <$fd>) {
1943                my %ref_item;
1944
1945                chomp $line;
1946                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1947                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1948                my ($creator, $epoch, $tz) =
1949                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1950                $name =~ s!^refs/tags/!!;
1951
1952                $ref_item{'type'} = $type;
1953                $ref_item{'id'} = $id;
1954                $ref_item{'name'} = $name;
1955                if ($type eq "tag") {
1956                        $ref_item{'subject'} = $title;
1957                        $ref_item{'reftype'} = $reftype;
1958                        $ref_item{'refid'}   = $refid;
1959                } else {
1960                        $ref_item{'reftype'} = $type;
1961                        $ref_item{'refid'}   = $id;
1962                }
1963
1964                if ($type eq "tag" || $type eq "commit") {
1965                        $ref_item{'epoch'} = $epoch;
1966                        if ($epoch) {
1967                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1968                        } else {
1969                                $ref_item{'age'} = "unknown";
1970                        }
1971                }
1972
1973                push @tagslist, \%ref_item;
1974        }
1975        close $fd;
1976
1977        return wantarray ? @tagslist : \@tagslist;
1978}
1979
1980## ----------------------------------------------------------------------
1981## filesystem-related functions
1982
1983sub get_file_owner {
1984        my $path = shift;
1985
1986        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1987        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1988        if (!defined $gcos) {
1989                return undef;
1990        }
1991        my $owner = $gcos;
1992        $owner =~ s/[,;].*$//;
1993        return to_utf8($owner);
1994}
1995
1996## ......................................................................
1997## mimetype related functions
1998
1999sub mimetype_guess_file {
2000        my $filename = shift;
2001        my $mimemap = shift;
2002        -r $mimemap or return undef;
2003
2004        my %mimemap;
2005        open(MIME, $mimemap) or return undef;
2006        while (<MIME>) {
2007                next if m/^#/; # skip comments
2008                my ($mime, $exts) = split(/\t+/);
2009                if (defined $exts) {
2010                        my @exts = split(/\s+/, $exts);
2011                        foreach my $ext (@exts) {
2012                                $mimemap{$ext} = $mime;
2013                        }
2014                }
2015        }
2016        close(MIME);
2017
2018        $filename =~ /\.([^.]*)$/;
2019        return $mimemap{$1};
2020}
2021
2022sub mimetype_guess {
2023        my $filename = shift;
2024        my $mime;
2025        $filename =~ /\./ or return undef;
2026
2027        if ($mimetypes_file) {
2028                my $file = $mimetypes_file;
2029                if ($file !~ m!^/!) { # if it is relative path
2030                        # it is relative to project
2031                        $file = "$projectroot/$project/$file";
2032                }
2033                $mime = mimetype_guess_file($filename, $file);
2034        }
2035        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2036        return $mime;
2037}
2038
2039sub blob_mimetype {
2040        my $fd = shift;
2041        my $filename = shift;
2042
2043        if ($filename) {
2044                my $mime = mimetype_guess($filename);
2045                $mime and return $mime;
2046        }
2047
2048        # just in case
2049        return $default_blob_plain_mimetype unless $fd;
2050
2051        if (-T $fd) {
2052                return 'text/plain' .
2053                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2054        } elsif (! $filename) {
2055                return 'application/octet-stream';
2056        } elsif ($filename =~ m/\.png$/i) {
2057                return 'image/png';
2058        } elsif ($filename =~ m/\.gif$/i) {
2059                return 'image/gif';
2060        } elsif ($filename =~ m/\.jpe?g$/i) {
2061                return 'image/jpeg';
2062        } else {
2063                return 'application/octet-stream';
2064        }
2065}
2066
2067## ======================================================================
2068## functions printing HTML: header, footer, error page
2069
2070sub git_header_html {
2071        my $status = shift || "200 OK";
2072        my $expires = shift;
2073
2074        my $title = "$site_name";
2075        if (defined $project) {
2076                $title .= " - " . to_utf8($project);
2077                if (defined $action) {
2078                        $title .= "/$action";
2079                        if (defined $file_name) {
2080                                $title .= " - " . esc_path($file_name);
2081                                if ($action eq "tree" && $file_name !~ m|/$|) {
2082                                        $title .= "/";
2083                                }
2084                        }
2085                }
2086        }
2087        my $content_type;
2088        # require explicit support from the UA if we are to send the page as
2089        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2090        # we have to do this because MSIE sometimes globs '*/*', pretending to
2091        # support xhtml+xml but choking when it gets what it asked for.
2092        if (defined $cgi->http('HTTP_ACCEPT') &&
2093            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2094            $cgi->Accept('application/xhtml+xml') != 0) {
2095                $content_type = 'application/xhtml+xml';
2096        } else {
2097                $content_type = 'text/html';
2098        }
2099        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2100                           -status=> $status, -expires => $expires);
2101        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2102        print <<EOF;
2103<?xml version="1.0" encoding="utf-8"?>
2104<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2105<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2106<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2107<!-- git core binaries version $git_version -->
2108<head>
2109<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2110<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2111<meta name="robots" content="index, nofollow"/>
2112<title>$title</title>
2113EOF
2114# print out each stylesheet that exist
2115        if (defined $stylesheet) {
2116#provides backwards capability for those people who define style sheet in a config file
2117                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2118        } else {
2119                foreach my $stylesheet (@stylesheets) {
2120                        next unless $stylesheet;
2121                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2122                }
2123        }
2124        if (defined $project) {
2125                printf('<link rel="alternate" title="%s log RSS feed" '.
2126                       'href="%s" type="application/rss+xml" />'."\n",
2127                       esc_param($project), href(action=>"rss"));
2128                printf('<link rel="alternate" title="%s log Atom feed" '.
2129                       'href="%s" type="application/atom+xml" />'."\n",
2130                       esc_param($project), href(action=>"atom"));
2131        } else {
2132                printf('<link rel="alternate" title="%s projects list" '.
2133                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
2134                       $site_name, href(project=>undef, action=>"project_index"));
2135                printf('<link rel="alternate" title="%s projects feeds" '.
2136                       'href="%s" type="text/x-opml"/>'."\n",
2137                       $site_name, href(project=>undef, action=>"opml"));
2138        }
2139        if (defined $favicon) {
2140                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
2141        }
2142
2143        print "</head>\n" .
2144              "<body>\n";
2145
2146        if (-f $site_header) {
2147                open (my $fd, $site_header);
2148                print <$fd>;
2149                close $fd;
2150        }
2151
2152        print "<div class=\"page_header\">\n" .
2153              $cgi->a({-href => esc_url($logo_url),
2154                       -title => $logo_label},
2155                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2156        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2157        if (defined $project) {
2158                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2159                if (defined $action) {
2160                        print " / $action";
2161                }
2162                print "\n";
2163        }
2164        print "</div>\n";
2165
2166        my ($have_search) = gitweb_check_feature('search');
2167        if ((defined $project) && ($have_search)) {
2168                if (!defined $searchtext) {
2169                        $searchtext = "";
2170                }
2171                my $search_hash;
2172                if (defined $hash_base) {
2173                        $search_hash = $hash_base;
2174                } elsif (defined $hash) {
2175                        $search_hash = $hash;
2176                } else {
2177                        $search_hash = "HEAD";
2178                }
2179                $cgi->param("a", "search");
2180                $cgi->param("h", $search_hash);
2181                $cgi->param("p", $project);
2182                print $cgi->startform(-method => "get", -action => $my_uri) .
2183                      "<div class=\"search\">\n" .
2184                      $cgi->hidden(-name => "p") . "\n" .
2185                      $cgi->hidden(-name => "a") . "\n" .
2186                      $cgi->hidden(-name => "h") . "\n" .
2187                      $cgi->popup_menu(-name => 'st', -default => 'commit',
2188                                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2189                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2190                      " search:\n",
2191                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2192                      "</div>" .
2193                      $cgi->end_form() . "\n";
2194        }
2195}
2196
2197sub git_footer_html {
2198        print "<div class=\"page_footer\">\n";
2199        if (defined $project) {
2200                my $descr = git_get_project_description($project);
2201                if (defined $descr) {
2202                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2203                }
2204                print $cgi->a({-href => href(action=>"rss"),
2205                              -class => "rss_logo"}, "RSS") . " ";
2206                print $cgi->a({-href => href(action=>"atom"),
2207                              -class => "rss_logo"}, "Atom") . "\n";
2208        } else {
2209                print $cgi->a({-href => href(project=>undef, action=>"opml"),
2210                              -class => "rss_logo"}, "OPML") . " ";
2211                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2212                              -class => "rss_logo"}, "TXT") . "\n";
2213        }
2214        print "</div>\n" ;
2215
2216        if (-f $site_footer) {
2217                open (my $fd, $site_footer);
2218                print <$fd>;
2219                close $fd;
2220        }
2221
2222        print "</body>\n" .
2223              "</html>";
2224}
2225
2226sub die_error {
2227        my $status = shift || "403 Forbidden";
2228        my $error = shift || "Malformed query, file missing or permission denied";
2229
2230        git_header_html($status);
2231        print <<EOF;
2232<div class="page_body">
2233<br /><br />
2234$status - $error
2235<br />
2236</div>
2237EOF
2238        git_footer_html();
2239        exit;
2240}
2241
2242## ----------------------------------------------------------------------
2243## functions printing or outputting HTML: navigation
2244
2245sub git_print_page_nav {
2246        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2247        $extra = '' if !defined $extra; # pager or formats
2248
2249        my @navs = qw(summary shortlog log commit commitdiff tree);
2250        if ($suppress) {
2251                @navs = grep { $_ ne $suppress } @navs;
2252        }
2253
2254        my %arg = map { $_ => {action=>$_} } @navs;
2255        if (defined $head) {
2256                for (qw(commit commitdiff)) {
2257                        $arg{$_}{'hash'} = $head;
2258                }
2259                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2260                        for (qw(shortlog log)) {
2261                                $arg{$_}{'hash'} = $head;
2262                        }
2263                }
2264        }
2265        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2266        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2267
2268        print "<div class=\"page_nav\">\n" .
2269                (join " | ",
2270                 map { $_ eq $current ?
2271                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2272                 } @navs);
2273        print "<br/>\n$extra<br/>\n" .
2274              "</div>\n";
2275}
2276
2277sub format_paging_nav {
2278        my ($action, $hash, $head, $page, $nrevs) = @_;
2279        my $paging_nav;
2280
2281
2282        if ($hash ne $head || $page) {
2283                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2284        } else {
2285                $paging_nav .= "HEAD";
2286        }
2287
2288        if ($page > 0) {
2289                $paging_nav .= " &sdot; " .
2290                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2291                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2292        } else {
2293                $paging_nav .= " &sdot; prev";
2294        }
2295
2296        if ($nrevs >= (100 * ($page+1)-1)) {
2297                $paging_nav .= " &sdot; " .
2298                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2299                                 -accesskey => "n", -title => "Alt-n"}, "next");
2300        } else {
2301                $paging_nav .= " &sdot; next";
2302        }
2303
2304        return $paging_nav;
2305}
2306
2307## ......................................................................
2308## functions printing or outputting HTML: div
2309
2310sub git_print_header_div {
2311        my ($action, $title, $hash, $hash_base) = @_;
2312        my %args = ();
2313
2314        $args{'action'} = $action;
2315        $args{'hash'} = $hash if $hash;
2316        $args{'hash_base'} = $hash_base if $hash_base;
2317
2318        print "<div class=\"header\">\n" .
2319              $cgi->a({-href => href(%args), -class => "title"},
2320              $title ? $title : $action) .
2321              "\n</div>\n";
2322}
2323
2324#sub git_print_authorship (\%) {
2325sub git_print_authorship {
2326        my $co = shift;
2327
2328        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2329        print "<div class=\"author_date\">" .
2330              esc_html($co->{'author_name'}) .
2331              " [$ad{'rfc2822'}";
2332        if ($ad{'hour_local'} < 6) {
2333                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2334                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2335        } else {
2336                printf(" (%02d:%02d %s)",
2337                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2338        }
2339        print "]</div>\n";
2340}
2341
2342sub git_print_page_path {
2343        my $name = shift;
2344        my $type = shift;
2345        my $hb = shift;
2346
2347
2348        print "<div class=\"page_path\">";
2349        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2350                      -title => 'tree root'}, to_utf8("[$project]"));
2351        print " / ";
2352        if (defined $name) {
2353                my @dirname = split '/', $name;
2354                my $basename = pop @dirname;
2355                my $fullname = '';
2356
2357                foreach my $dir (@dirname) {
2358                        $fullname .= ($fullname ? '/' : '') . $dir;
2359                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2360                                                     hash_base=>$hb),
2361                                      -title => $fullname}, esc_path($dir));
2362                        print " / ";
2363                }
2364                if (defined $type && $type eq 'blob') {
2365                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2366                                                     hash_base=>$hb),
2367                                      -title => $name}, esc_path($basename));
2368                } elsif (defined $type && $type eq 'tree') {
2369                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2370                                                     hash_base=>$hb),
2371                                      -title => $name}, esc_path($basename));
2372                        print " / ";
2373                } else {
2374                        print esc_path($basename);
2375                }
2376        }
2377        print "<br/></div>\n";
2378}
2379
2380# sub git_print_log (\@;%) {
2381sub git_print_log ($;%) {
2382        my $log = shift;
2383        my %opts = @_;
2384
2385        if ($opts{'-remove_title'}) {
2386                # remove title, i.e. first line of log
2387                shift @$log;
2388        }
2389        # remove leading empty lines
2390        while (defined $log->[0] && $log->[0] eq "") {
2391                shift @$log;
2392        }
2393
2394        # print log
2395        my $signoff = 0;
2396        my $empty = 0;
2397        foreach my $line (@$log) {
2398                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2399                        $signoff = 1;
2400                        $empty = 0;
2401                        if (! $opts{'-remove_signoff'}) {
2402                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2403                                next;
2404                        } else {
2405                                # remove signoff lines
2406                                next;
2407                        }
2408                } else {
2409                        $signoff = 0;
2410                }
2411
2412                # print only one empty line
2413                # do not print empty line after signoff
2414                if ($line eq "") {
2415                        next if ($empty || $signoff);
2416                        $empty = 1;
2417                } else {
2418                        $empty = 0;
2419                }
2420
2421                print format_log_line_html($line) . "<br/>\n";
2422        }
2423
2424        if ($opts{'-final_empty_line'}) {
2425                # end with single empty line
2426                print "<br/>\n" unless $empty;
2427        }
2428}
2429
2430# return link target (what link points to)
2431sub git_get_link_target {
2432        my $hash = shift;
2433        my $link_target;
2434
2435        # read link
2436        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2437                or return;
2438        {
2439                local $/;
2440                $link_target = <$fd>;
2441        }
2442        close $fd
2443                or return;
2444
2445        return $link_target;
2446}
2447
2448# given link target, and the directory (basedir) the link is in,
2449# return target of link relative to top directory (top tree);
2450# return undef if it is not possible (including absolute links).
2451sub normalize_link_target {
2452        my ($link_target, $basedir, $hash_base) = @_;
2453
2454        # we can normalize symlink target only if $hash_base is provided
2455        return unless $hash_base;
2456
2457        # absolute symlinks (beginning with '/') cannot be normalized
2458        return if (substr($link_target, 0, 1) eq '/');
2459
2460        # normalize link target to path from top (root) tree (dir)
2461        my $path;
2462        if ($basedir) {
2463                $path = $basedir . '/' . $link_target;
2464        } else {
2465                # we are in top (root) tree (dir)
2466                $path = $link_target;
2467        }
2468
2469        # remove //, /./, and /../
2470        my @path_parts;
2471        foreach my $part (split('/', $path)) {
2472                # discard '.' and ''
2473                next if (!$part || $part eq '.');
2474                # handle '..'
2475                if ($part eq '..') {
2476                        if (@path_parts) {
2477                                pop @path_parts;
2478                        } else {
2479                                # link leads outside repository (outside top dir)
2480                                return;
2481                        }
2482                } else {
2483                        push @path_parts, $part;
2484                }
2485        }
2486        $path = join('/', @path_parts);
2487
2488        return $path;
2489}
2490
2491# print tree entry (row of git_tree), but without encompassing <tr> element
2492sub git_print_tree_entry {
2493        my ($t, $basedir, $hash_base, $have_blame) = @_;
2494
2495        my %base_key = ();
2496        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2497
2498        # The format of a table row is: mode list link.  Where mode is
2499        # the mode of the entry, list is the name of the entry, an href,
2500        # and link is the action links of the entry.
2501
2502        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2503        if ($t->{'type'} eq "blob") {
2504                print "<td class=\"list\">" .
2505                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2506                                               file_name=>"$basedir$t->{'name'}", %base_key),
2507                                -class => "list"}, esc_path($t->{'name'}));
2508                if (S_ISLNK(oct $t->{'mode'})) {
2509                        my $link_target = git_get_link_target($t->{'hash'});
2510                        if ($link_target) {
2511                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2512                                if (defined $norm_target) {
2513                                        print " -> " .
2514                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2515                                                                     file_name=>$norm_target),
2516                                                       -title => $norm_target}, esc_path($link_target));
2517                                } else {
2518                                        print " -> " . esc_path($link_target);
2519                                }
2520                        }
2521                }
2522                print "</td>\n";
2523                print "<td class=\"link\">";
2524                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2525                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2526                              "blob");
2527                if ($have_blame) {
2528                        print " | " .
2529                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2530                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2531                                      "blame");
2532                }
2533                if (defined $hash_base) {
2534                        print " | " .
2535                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2536                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2537                                      "history");
2538                }
2539                print " | " .
2540                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2541                                               file_name=>"$basedir$t->{'name'}")},
2542                                "raw");
2543                print "</td>\n";
2544
2545        } elsif ($t->{'type'} eq "tree") {
2546                print "<td class=\"list\">";
2547                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2548                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2549                              esc_path($t->{'name'}));
2550                print "</td>\n";
2551                print "<td class=\"link\">";
2552                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2553                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2554                              "tree");
2555                if (defined $hash_base) {
2556                        print " | " .
2557                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2558                                                     file_name=>"$basedir$t->{'name'}")},
2559                                      "history");
2560                }
2561                print "</td>\n";
2562        }
2563}
2564
2565## ......................................................................
2566## functions printing large fragments of HTML
2567
2568sub fill_from_file_info {
2569        my ($diff, @parents) = @_;
2570
2571        $diff->{'from_file'} = [ ];
2572        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2573        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2574                if ($diff->{'status'}[$i] eq 'R' ||
2575                    $diff->{'status'}[$i] eq 'C') {
2576                        $diff->{'from_file'}[$i] =
2577                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2578                }
2579        }
2580
2581        return $diff;
2582}
2583
2584# parameters can be strings, or references to arrays of strings
2585sub from_ids_eq {
2586        my ($a, $b) = @_;
2587
2588        if (ref($a) eq "ARRAY" && ref($b) eq "ARRAY" && @$a == @$b) {
2589                for (my $i = 0; $i < @$a; ++$i) {
2590                        return 0 unless ($a->[$i] eq $b->[$i]);
2591                }
2592                return 1;
2593        } elsif (!ref($a) && !ref($b)) {
2594                return $a eq $b;
2595        } else {
2596                return 0;
2597        }
2598}
2599
2600sub is_deleted {
2601        my $diffinfo = shift;
2602
2603        return $diffinfo->{'to_id'} eq ('0' x 40);
2604}
2605
2606sub git_difftree_body {
2607        my ($difftree, $hash, @parents) = @_;
2608        my ($parent) = $parents[0];
2609        my ($have_blame) = gitweb_check_feature('blame');
2610        print "<div class=\"list_head\">\n";
2611        if ($#{$difftree} > 10) {
2612                print(($#{$difftree} + 1) . " files changed:\n");
2613        }
2614        print "</div>\n";
2615
2616        print "<table class=\"" .
2617              (@parents > 1 ? "combined " : "") .
2618              "diff_tree\">\n";
2619
2620        # header only for combined diff in 'commitdiff' view
2621        my $has_header = @parents > 1 && $action eq 'commitdiff';
2622        if ($has_header) {
2623                # table header
2624                print "<thead><tr>\n" .
2625                       "<th></th><th></th>\n"; # filename, patchN link
2626                for (my $i = 0; $i < @parents; $i++) {
2627                        my $par = $parents[$i];
2628                        print "<th>" .
2629                              $cgi->a({-href => href(action=>"commitdiff",
2630                                                     hash=>$hash, hash_parent=>$par),
2631                                       -title => 'commitdiff to parent number ' .
2632                                                  ($i+1) . ': ' . substr($par,0,7)},
2633                                      $i+1) .
2634                              "&nbsp;</th>\n";
2635                }
2636                print "</tr></thead>\n<tbody>\n";
2637        }
2638
2639        my $alternate = 1;
2640        my $patchno = 0;
2641        foreach my $line (@{$difftree}) {
2642                my $diff;
2643                if (ref($line) eq "HASH") {
2644                        # pre-parsed (or generated by hand)
2645                        $diff = $line;
2646                } else {
2647                        $diff = parse_difftree_raw_line($line);
2648                }
2649
2650                if ($alternate) {
2651                        print "<tr class=\"dark\">\n";
2652                } else {
2653                        print "<tr class=\"light\">\n";
2654                }
2655                $alternate ^= 1;
2656
2657                if (exists $diff->{'nparents'}) { # combined diff
2658
2659                        fill_from_file_info($diff, @parents)
2660                                unless exists $diff->{'from_file'};
2661
2662                        if (!is_deleted($diff)) {
2663                                # file exists in the result (child) commit
2664                                print "<td>" .
2665                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2666                                                             file_name=>$diff->{'to_file'},
2667                                                             hash_base=>$hash),
2668                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2669                                      "</td>\n";
2670                        } else {
2671                                print "<td>" .
2672                                      esc_path($diff->{'to_file'}) .
2673                                      "</td>\n";
2674                        }
2675
2676                        if ($action eq 'commitdiff') {
2677                                # link to patch
2678                                $patchno++;
2679                                print "<td class=\"link\">" .
2680                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2681                                      " | " .
2682                                      "</td>\n";
2683                        }
2684
2685                        my $has_history = 0;
2686                        my $not_deleted = 0;
2687                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2688                                my $hash_parent = $parents[$i];
2689                                my $from_hash = $diff->{'from_id'}[$i];
2690                                my $from_path = $diff->{'from_file'}[$i];
2691                                my $status = $diff->{'status'}[$i];
2692
2693                                $has_history ||= ($status ne 'A');
2694                                $not_deleted ||= ($status ne 'D');
2695
2696                                if ($status eq 'A') {
2697                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2698                                } elsif ($status eq 'D') {
2699                                        print "<td class=\"link\">" .
2700                                              $cgi->a({-href => href(action=>"blob",
2701                                                                     hash_base=>$hash,
2702                                                                     hash=>$from_hash,
2703                                                                     file_name=>$from_path)},
2704                                                      "blob" . ($i+1)) .
2705                                              " | </td>\n";
2706                                } else {
2707                                        if ($diff->{'to_id'} eq $from_hash) {
2708                                                print "<td class=\"link nochange\">";
2709                                        } else {
2710                                                print "<td class=\"link\">";
2711                                        }
2712                                        print $cgi->a({-href => href(action=>"blobdiff",
2713                                                                     hash=>$diff->{'to_id'},
2714                                                                     hash_parent=>$from_hash,
2715                                                                     hash_base=>$hash,
2716                                                                     hash_parent_base=>$hash_parent,
2717                                                                     file_name=>$diff->{'to_file'},
2718                                                                     file_parent=>$from_path)},
2719                                                      "diff" . ($i+1)) .
2720                                              " | </td>\n";
2721                                }
2722                        }
2723
2724                        print "<td class=\"link\">";
2725                        if ($not_deleted) {
2726                                print $cgi->a({-href => href(action=>"blob",
2727                                                             hash=>$diff->{'to_id'},
2728                                                             file_name=>$diff->{'to_file'},
2729                                                             hash_base=>$hash)},
2730                                              "blob");
2731                                print " | " if ($has_history);
2732                        }
2733                        if ($has_history) {
2734                                print $cgi->a({-href => href(action=>"history",
2735                                                             file_name=>$diff->{'to_file'},
2736                                                             hash_base=>$hash)},
2737                                              "history");
2738                        }
2739                        print "</td>\n";
2740
2741                        print "</tr>\n";
2742                        next; # instead of 'else' clause, to avoid extra indent
2743                }
2744                # else ordinary diff
2745
2746                my ($to_mode_oct, $to_mode_str, $to_file_type);
2747                my ($from_mode_oct, $from_mode_str, $from_file_type);
2748                if ($diff->{'to_mode'} ne ('0' x 6)) {
2749                        $to_mode_oct = oct $diff->{'to_mode'};
2750                        if (S_ISREG($to_mode_oct)) { # only for regular file
2751                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2752                        }
2753                        $to_file_type = file_type($diff->{'to_mode'});
2754                }
2755                if ($diff->{'from_mode'} ne ('0' x 6)) {
2756                        $from_mode_oct = oct $diff->{'from_mode'};
2757                        if (S_ISREG($to_mode_oct)) { # only for regular file
2758                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2759                        }
2760                        $from_file_type = file_type($diff->{'from_mode'});
2761                }
2762
2763                if ($diff->{'status'} eq "A") { # created
2764                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2765                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2766                        $mode_chng   .= "]</span>";
2767                        print "<td>";
2768                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2769                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2770                                      -class => "list"}, esc_path($diff->{'file'}));
2771                        print "</td>\n";
2772                        print "<td>$mode_chng</td>\n";
2773                        print "<td class=\"link\">";
2774                        if ($action eq 'commitdiff') {
2775                                # link to patch
2776                                $patchno++;
2777                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2778                                print " | ";
2779                        }
2780                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2781                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2782                                      "blob");
2783                        print "</td>\n";
2784
2785                } elsif ($diff->{'status'} eq "D") { # deleted
2786                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2787                        print "<td>";
2788                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2789                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
2790                                       -class => "list"}, esc_path($diff->{'file'}));
2791                        print "</td>\n";
2792                        print "<td>$mode_chng</td>\n";
2793                        print "<td class=\"link\">";
2794                        if ($action eq 'commitdiff') {
2795                                # link to patch
2796                                $patchno++;
2797                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2798                                print " | ";
2799                        }
2800                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2801                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
2802                                      "blob") . " | ";
2803                        if ($have_blame) {
2804                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2805                                                             file_name=>$diff->{'file'})},
2806                                              "blame") . " | ";
2807                        }
2808                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2809                                                     file_name=>$diff->{'file'})},
2810                                      "history");
2811                        print "</td>\n";
2812
2813                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
2814                        my $mode_chnge = "";
2815                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2816                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2817                                if ($from_file_type ne $to_file_type) {
2818                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2819                                }
2820                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2821                                        if ($from_mode_str && $to_mode_str) {
2822                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2823                                        } elsif ($to_mode_str) {
2824                                                $mode_chnge .= " mode: $to_mode_str";
2825                                        }
2826                                }
2827                                $mode_chnge .= "]</span>\n";
2828                        }
2829                        print "<td>";
2830                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2831                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2832                                      -class => "list"}, esc_path($diff->{'file'}));
2833                        print "</td>\n";
2834                        print "<td>$mode_chnge</td>\n";
2835                        print "<td class=\"link\">";
2836                        if ($action eq 'commitdiff') {
2837                                # link to patch
2838                                $patchno++;
2839                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2840                                      " | ";
2841                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2842                                # "commit" view and modified file (not onlu mode changed)
2843                                print $cgi->a({-href => href(action=>"blobdiff",
2844                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2845                                                             hash_base=>$hash, hash_parent_base=>$parent,
2846                                                             file_name=>$diff->{'file'})},
2847                                              "diff") .
2848                                      " | ";
2849                        }
2850                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2851                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2852                                       "blob") . " | ";
2853                        if ($have_blame) {
2854                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2855                                                             file_name=>$diff->{'file'})},
2856                                              "blame") . " | ";
2857                        }
2858                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2859                                                     file_name=>$diff->{'file'})},
2860                                      "history");
2861                        print "</td>\n";
2862
2863                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
2864                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2865                        my $nstatus = $status_name{$diff->{'status'}};
2866                        my $mode_chng = "";
2867                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2868                                # mode also for directories, so we cannot use $to_mode_str
2869                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2870                        }
2871                        print "<td>" .
2872                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2873                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
2874                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
2875                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2876                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2877                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
2878                                      -class => "list"}, esc_path($diff->{'from_file'})) .
2879                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2880                              "<td class=\"link\">";
2881                        if ($action eq 'commitdiff') {
2882                                # link to patch
2883                                $patchno++;
2884                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2885                                      " | ";
2886                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2887                                # "commit" view and modified file (not only pure rename or copy)
2888                                print $cgi->a({-href => href(action=>"blobdiff",
2889                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2890                                                             hash_base=>$hash, hash_parent_base=>$parent,
2891                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
2892                                              "diff") .
2893                                      " | ";
2894                        }
2895                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2896                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
2897                                      "blob") . " | ";
2898                        if ($have_blame) {
2899                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2900                                                             file_name=>$diff->{'to_file'})},
2901                                              "blame") . " | ";
2902                        }
2903                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2904                                                    file_name=>$diff->{'to_file'})},
2905                                      "history");
2906                        print "</td>\n";
2907
2908                } # we should not encounter Unmerged (U) or Unknown (X) status
2909                print "</tr>\n";
2910        }
2911        print "</tbody>" if $has_header;
2912        print "</table>\n";
2913}
2914
2915sub git_patchset_body {
2916        my ($fd, $difftree, $hash, @hash_parents) = @_;
2917        my ($hash_parent) = $hash_parents[0];
2918
2919        my $patch_idx = 0;
2920        my $patch_number = 0;
2921        my $patch_line;
2922        my $diffinfo;
2923        my (%from, %to);
2924
2925        print "<div class=\"patchset\">\n";
2926
2927        # skip to first patch
2928        while ($patch_line = <$fd>) {
2929                chomp $patch_line;
2930
2931                last if ($patch_line =~ m/^diff /);
2932        }
2933
2934 PATCH:
2935        while ($patch_line) {
2936                my @diff_header;
2937                my ($from_id, $to_id);
2938
2939                # git diff header
2940                #assert($patch_line =~ m/^diff /) if DEBUG;
2941                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2942                $patch_number++;
2943                push @diff_header, $patch_line;
2944
2945                # extended diff header
2946        EXTENDED_HEADER:
2947                while ($patch_line = <$fd>) {
2948                        chomp $patch_line;
2949
2950                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
2951
2952                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2953                                $from_id = $1;
2954                                $to_id   = $2;
2955                        } elsif ($patch_line =~ m/^index ((?:[0-9a-fA-F]{40},)+[0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2956                                $from_id = [ split(',', $1) ];
2957                                $to_id   = $2;
2958                        }
2959
2960                        push @diff_header, $patch_line;
2961                }
2962                my $last_patch_line = $patch_line;
2963
2964                # check if current patch belong to current raw line
2965                # and parse raw git-diff line if needed
2966                if (defined $diffinfo &&
2967                    defined $from_id && defined $to_id &&
2968                    from_ids_eq($diffinfo->{'from_id'}, $from_id) &&
2969                    $diffinfo->{'to_id'} eq $to_id) {
2970                        # this is continuation of a split patch
2971                        print "<div class=\"patch cont\">\n";
2972                } else {
2973                        # advance raw git-diff output if needed
2974                        $patch_idx++ if defined $diffinfo;
2975
2976                        # read and prepare patch information
2977                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2978                                # pre-parsed (or generated by hand)
2979                                $diffinfo = $difftree->[$patch_idx];
2980                        } else {
2981                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2982                        }
2983                        # modifies %from, %to hashes
2984                        parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
2985                        if ($diffinfo->{'nparents'}) {
2986                                # combined diff
2987                                $from{'file'} = [];
2988                                $from{'href'} = [];
2989                                fill_from_file_info($diffinfo, @hash_parents)
2990                                        unless exists $diffinfo->{'from_file'};
2991                                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2992                                        $from{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2993                                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2994                                                $from{'href'}[$i] = href(action=>"blob",
2995                                                                         hash_base=>$hash_parents[$i],
2996                                                                         hash=>$diffinfo->{'from_id'}[$i],
2997                                                                         file_name=>$from{'file'}[$i]);
2998                                        } else {
2999                                                $from{'href'}[$i] = undef;
3000                                        }
3001                                }
3002                        } else {
3003                                $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
3004                                if ($diffinfo->{'status'} ne "A") { # not new (added) file
3005                                        $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
3006                                                             hash=>$diffinfo->{'from_id'},
3007                                                             file_name=>$from{'file'});
3008                                } else {
3009                                        delete $from{'href'};
3010                                }
3011                        }
3012
3013                        $to{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
3014                        if (!is_deleted($diffinfo)) { # file exists in result
3015                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
3016                                                   hash=>$diffinfo->{'to_id'},
3017                                                   file_name=>$to{'file'});
3018                        } else {
3019                                delete $to{'href'};
3020                        }
3021                        # this is first patch for raw difftree line with $patch_idx index
3022                        # we index @$difftree array from 0, but number patches from 1
3023                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3024                }
3025
3026                # print "git diff" header
3027                $patch_line = shift @diff_header;
3028                print format_git_diff_header_line($patch_line, $diffinfo,
3029                                                  \%from, \%to);
3030
3031                # print extended diff header
3032                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
3033        EXTENDED_HEADER:
3034                foreach $patch_line (@diff_header) {
3035                        print format_extended_diff_header_line($patch_line, $diffinfo,
3036                                                               \%from, \%to);
3037                }
3038                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
3039
3040                # from-file/to-file diff header
3041                $patch_line = $last_patch_line;
3042                if (! $patch_line) {
3043                        print "</div>\n"; # class="patch"
3044                        last PATCH;
3045                }
3046                next PATCH if ($patch_line =~ m/^diff /);
3047                #assert($patch_line =~ m/^---/) if DEBUG;
3048                #assert($patch_line eq $last_patch_line) if DEBUG;
3049
3050                $patch_line = <$fd>;
3051                chomp $patch_line;
3052                #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3053
3054                print format_diff_from_to_header($last_patch_line, $patch_line,
3055                                                 $diffinfo, \%from, \%to,
3056                                                 @hash_parents);
3057
3058                # the patch itself
3059        LINE:
3060                while ($patch_line = <$fd>) {
3061                        chomp $patch_line;
3062
3063                        next PATCH if ($patch_line =~ m/^diff /);
3064
3065                        print format_diff_line($patch_line, \%from, \%to);
3066                }
3067
3068        } continue {
3069                print "</div>\n"; # class="patch"
3070        }
3071
3072        if ($patch_number == 0) {
3073                if (@hash_parents > 1) {
3074                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3075                } else {
3076                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
3077                }
3078        }
3079
3080        print "</div>\n"; # class="patchset"
3081}
3082
3083# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3084
3085sub git_project_list_body {
3086        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3087
3088        my ($check_forks) = gitweb_check_feature('forks');
3089
3090        my @projects;
3091        foreach my $pr (@$projlist) {
3092                my (@aa) = git_get_last_activity($pr->{'path'});
3093                unless (@aa) {
3094                        next;
3095                }
3096                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3097                if (!defined $pr->{'descr'}) {
3098                        my $descr = git_get_project_description($pr->{'path'}) || "";
3099                        $pr->{'descr_long'} = to_utf8($descr);
3100                        $pr->{'descr'} = chop_str($descr, 25, 5);
3101                }
3102                if (!defined $pr->{'owner'}) {
3103                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
3104                }
3105                if ($check_forks) {
3106                        my $pname = $pr->{'path'};
3107                        if (($pname =~ s/\.git$//) &&
3108                            ($pname !~ /\/$/) &&
3109                            (-d "$projectroot/$pname")) {
3110                                $pr->{'forks'} = "-d $projectroot/$pname";
3111                        }
3112                        else {
3113                                $pr->{'forks'} = 0;
3114                        }
3115                }
3116                push @projects, $pr;
3117        }
3118
3119        $order ||= $default_projects_order;
3120        $from = 0 unless defined $from;
3121        $to = $#projects if (!defined $to || $#projects < $to);
3122
3123        print "<table class=\"project_list\">\n";
3124        unless ($no_header) {
3125                print "<tr>\n";
3126                if ($check_forks) {
3127                        print "<th></th>\n";
3128                }
3129                if ($order eq "project") {
3130                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3131                        print "<th>Project</th>\n";
3132                } else {
3133                        print "<th>" .
3134                              $cgi->a({-href => href(project=>undef, order=>'project'),
3135                                       -class => "header"}, "Project") .
3136                              "</th>\n";
3137                }
3138                if ($order eq "descr") {
3139                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3140                        print "<th>Description</th>\n";
3141                } else {
3142                        print "<th>" .
3143                              $cgi->a({-href => href(project=>undef, order=>'descr'),
3144                                       -class => "header"}, "Description") .
3145                              "</th>\n";
3146                }
3147                if ($order eq "owner") {
3148                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3149                        print "<th>Owner</th>\n";
3150                } else {
3151                        print "<th>" .
3152                              $cgi->a({-href => href(project=>undef, order=>'owner'),
3153                                       -class => "header"}, "Owner") .
3154                              "</th>\n";
3155                }
3156                if ($order eq "age") {
3157                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3158                        print "<th>Last Change</th>\n";
3159                } else {
3160                        print "<th>" .
3161                              $cgi->a({-href => href(project=>undef, order=>'age'),
3162                                       -class => "header"}, "Last Change") .
3163                              "</th>\n";
3164                }
3165                print "<th></th>\n" .
3166                      "</tr>\n";
3167        }
3168        my $alternate = 1;
3169        for (my $i = $from; $i <= $to; $i++) {
3170                my $pr = $projects[$i];
3171                if ($alternate) {
3172                        print "<tr class=\"dark\">\n";
3173                } else {
3174                        print "<tr class=\"light\">\n";
3175                }
3176                $alternate ^= 1;
3177                if ($check_forks) {
3178                        print "<td>";
3179                        if ($pr->{'forks'}) {
3180                                print "<!-- $pr->{'forks'} -->\n";
3181                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3182                        }
3183                        print "</td>\n";
3184                }
3185                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3186                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3187                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3188                                        -class => "list", -title => $pr->{'descr_long'}},
3189                                        esc_html($pr->{'descr'})) . "</td>\n" .
3190                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
3191                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3192                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3193                      "<td class=\"link\">" .
3194                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3195                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3196                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3197                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3198                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3199                      "</td>\n" .
3200                      "</tr>\n";
3201        }
3202        if (defined $extra) {
3203                print "<tr>\n";
3204                if ($check_forks) {
3205                        print "<td></td>\n";
3206                }
3207                print "<td colspan=\"5\">$extra</td>\n" .
3208                      "</tr>\n";
3209        }
3210        print "</table>\n";
3211}
3212
3213sub git_shortlog_body {
3214        # uses global variable $project
3215        my ($commitlist, $from, $to, $refs, $extra) = @_;
3216
3217        my $have_snapshot = gitweb_have_snapshot();
3218
3219        $from = 0 unless defined $from;
3220        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3221
3222        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3223        my $alternate = 1;
3224        for (my $i = $from; $i <= $to; $i++) {
3225                my %co = %{$commitlist->[$i]};
3226                my $commit = $co{'id'};
3227                my $ref = format_ref_marker($refs, $commit);
3228                if ($alternate) {
3229                        print "<tr class=\"dark\">\n";
3230                } else {
3231                        print "<tr class=\"light\">\n";
3232                }
3233                $alternate ^= 1;
3234                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3235                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3236                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
3237                      "<td>";
3238                print format_subject_html($co{'title'}, $co{'title_short'},
3239                                          href(action=>"commit", hash=>$commit), $ref);
3240                print "</td>\n" .
3241                      "<td class=\"link\">" .
3242                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3243                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3244                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3245                if ($have_snapshot) {
3246                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
3247                }
3248                print "</td>\n" .
3249                      "</tr>\n";
3250        }
3251        if (defined $extra) {
3252                print "<tr>\n" .
3253                      "<td colspan=\"4\">$extra</td>\n" .
3254                      "</tr>\n";
3255        }
3256        print "</table>\n";
3257}
3258
3259sub git_history_body {
3260        # Warning: assumes constant type (blob or tree) during history
3261        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3262
3263        $from = 0 unless defined $from;
3264        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3265
3266        print "<table class=\"history\" cellspacing=\"0\">\n";
3267        my $alternate = 1;
3268        for (my $i = $from; $i <= $to; $i++) {
3269                my %co = %{$commitlist->[$i]};
3270                if (!%co) {
3271                        next;
3272                }
3273                my $commit = $co{'id'};
3274
3275                my $ref = format_ref_marker($refs, $commit);
3276
3277                if ($alternate) {
3278                        print "<tr class=\"dark\">\n";
3279                } else {
3280                        print "<tr class=\"light\">\n";
3281                }
3282                $alternate ^= 1;
3283                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3284                      # shortlog uses      chop_str($co{'author_name'}, 10)
3285                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
3286                      "<td>";
3287                # originally git_history used chop_str($co{'title'}, 50)
3288                print format_subject_html($co{'title'}, $co{'title_short'},
3289                                          href(action=>"commit", hash=>$commit), $ref);
3290                print "</td>\n" .
3291                      "<td class=\"link\">" .
3292                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3293                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3294
3295                if ($ftype eq 'blob') {
3296                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3297                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3298                        if (defined $blob_current && defined $blob_parent &&
3299                                        $blob_current ne $blob_parent) {
3300                                print " | " .
3301                                        $cgi->a({-href => href(action=>"blobdiff",
3302                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3303                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3304                                                               file_name=>$file_name)},
3305                                                "diff to current");
3306                        }
3307                }
3308                print "</td>\n" .
3309                      "</tr>\n";
3310        }
3311        if (defined $extra) {
3312                print "<tr>\n" .
3313                      "<td colspan=\"4\">$extra</td>\n" .
3314                      "</tr>\n";
3315        }
3316        print "</table>\n";
3317}
3318
3319sub git_tags_body {
3320        # uses global variable $project
3321        my ($taglist, $from, $to, $extra) = @_;
3322        $from = 0 unless defined $from;
3323        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3324
3325        print "<table class=\"tags\" cellspacing=\"0\">\n";
3326        my $alternate = 1;
3327        for (my $i = $from; $i <= $to; $i++) {
3328                my $entry = $taglist->[$i];
3329                my %tag = %$entry;
3330                my $comment = $tag{'subject'};
3331                my $comment_short;
3332                if (defined $comment) {
3333                        $comment_short = chop_str($comment, 30, 5);
3334                }
3335                if ($alternate) {
3336                        print "<tr class=\"dark\">\n";
3337                } else {
3338                        print "<tr class=\"light\">\n";
3339                }
3340                $alternate ^= 1;
3341                if (defined $tag{'age'}) {
3342                        print "<td><i>$tag{'age'}</i></td>\n";
3343                } else {
3344                        print "<td></td>\n";
3345                }
3346                print "<td>" .
3347                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3348                               -class => "list name"}, esc_html($tag{'name'})) .
3349                      "</td>\n" .
3350                      "<td>";
3351                if (defined $comment) {
3352                        print format_subject_html($comment, $comment_short,
3353                                                  href(action=>"tag", hash=>$tag{'id'}));
3354                }
3355                print "</td>\n" .
3356                      "<td class=\"selflink\">";
3357                if ($tag{'type'} eq "tag") {
3358                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3359                } else {
3360                        print "&nbsp;";
3361                }
3362                print "</td>\n" .
3363                      "<td class=\"link\">" . " | " .
3364                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3365                if ($tag{'reftype'} eq "commit") {
3366                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3367                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3368                } elsif ($tag{'reftype'} eq "blob") {
3369                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3370                }
3371                print "</td>\n" .
3372                      "</tr>";
3373        }
3374        if (defined $extra) {
3375                print "<tr>\n" .
3376                      "<td colspan=\"5\">$extra</td>\n" .
3377                      "</tr>\n";
3378        }
3379        print "</table>\n";
3380}
3381
3382sub git_heads_body {
3383        # uses global variable $project
3384        my ($headlist, $head, $from, $to, $extra) = @_;
3385        $from = 0 unless defined $from;
3386        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3387
3388        print "<table class=\"heads\" cellspacing=\"0\">\n";
3389        my $alternate = 1;
3390        for (my $i = $from; $i <= $to; $i++) {
3391                my $entry = $headlist->[$i];
3392                my %ref = %$entry;
3393                my $curr = $ref{'id'} eq $head;
3394                if ($alternate) {
3395                        print "<tr class=\"dark\">\n";
3396                } else {
3397                        print "<tr class=\"light\">\n";
3398                }
3399                $alternate ^= 1;
3400                print "<td><i>$ref{'age'}</i></td>\n" .
3401                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3402                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3403                               -class => "list name"},esc_html($ref{'name'})) .
3404                      "</td>\n" .
3405                      "<td class=\"link\">" .
3406                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3407                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3408                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3409                      "</td>\n" .
3410                      "</tr>";
3411        }
3412        if (defined $extra) {
3413                print "<tr>\n" .
3414                      "<td colspan=\"3\">$extra</td>\n" .
3415                      "</tr>\n";
3416        }
3417        print "</table>\n";
3418}
3419
3420sub git_search_grep_body {
3421        my ($commitlist, $from, $to, $extra) = @_;
3422        $from = 0 unless defined $from;
3423        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3424
3425        print "<table class=\"grep\" cellspacing=\"0\">\n";
3426        my $alternate = 1;
3427        for (my $i = $from; $i <= $to; $i++) {
3428                my %co = %{$commitlist->[$i]};
3429                if (!%co) {
3430                        next;
3431                }
3432                my $commit = $co{'id'};
3433                if ($alternate) {
3434                        print "<tr class=\"dark\">\n";
3435                } else {
3436                        print "<tr class=\"light\">\n";
3437                }
3438                $alternate ^= 1;
3439                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3440                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3441                      "<td>" .
3442                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3443                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3444                my $comment = $co{'comment'};
3445                foreach my $line (@$comment) {
3446                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3447                                my $lead = esc_html($1) || "";
3448                                $lead = chop_str($lead, 30, 10);
3449                                my $match = esc_html($2) || "";
3450                                my $trail = esc_html($3) || "";
3451                                $trail = chop_str($trail, 30, 10);
3452                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3453                                print chop_str($text, 80, 5) . "<br/>\n";
3454                        }
3455                }
3456                print "</td>\n" .
3457                      "<td class=\"link\">" .
3458                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3459                      " | " .
3460                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3461                print "</td>\n" .
3462                      "</tr>\n";
3463        }
3464        if (defined $extra) {
3465                print "<tr>\n" .
3466                      "<td colspan=\"3\">$extra</td>\n" .
3467                      "</tr>\n";
3468        }
3469        print "</table>\n";
3470}
3471
3472## ======================================================================
3473## ======================================================================
3474## actions
3475
3476sub git_project_list {
3477        my $order = $cgi->param('o');
3478        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3479                die_error(undef, "Unknown order parameter");
3480        }
3481
3482        my @list = git_get_projects_list();
3483        if (!@list) {
3484                die_error(undef, "No projects found");
3485        }
3486
3487        git_header_html();
3488        if (-f $home_text) {
3489                print "<div class=\"index_include\">\n";
3490                open (my $fd, $home_text);
3491                print <$fd>;
3492                close $fd;
3493                print "</div>\n";
3494        }
3495        git_project_list_body(\@list, $order);
3496        git_footer_html();
3497}
3498
3499sub git_forks {
3500        my $order = $cgi->param('o');
3501        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3502                die_error(undef, "Unknown order parameter");
3503        }
3504
3505        my @list = git_get_projects_list($project);
3506        if (!@list) {
3507                die_error(undef, "No forks found");
3508        }
3509
3510        git_header_html();
3511        git_print_page_nav('','');
3512        git_print_header_div('summary', "$project forks");
3513        git_project_list_body(\@list, $order);
3514        git_footer_html();
3515}
3516
3517sub git_project_index {
3518        my @projects = git_get_projects_list($project);
3519
3520        print $cgi->header(
3521                -type => 'text/plain',
3522                -charset => 'utf-8',
3523                -content_disposition => 'inline; filename="index.aux"');
3524
3525        foreach my $pr (@projects) {
3526                if (!exists $pr->{'owner'}) {
3527                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3528                }
3529
3530                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3531                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3532                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3533                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3534                $path  =~ s/ /\+/g;
3535                $owner =~ s/ /\+/g;
3536
3537                print "$path $owner\n";
3538        }
3539}
3540
3541sub git_summary {
3542        my $descr = git_get_project_description($project) || "none";
3543        my %co = parse_commit("HEAD");
3544        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3545        my $head = $co{'id'};
3546
3547        my $owner = git_get_project_owner($project);
3548
3549        my $refs = git_get_references();
3550        # These get_*_list functions return one more to allow us to see if
3551        # there are more ...
3552        my @taglist  = git_get_tags_list(16);
3553        my @headlist = git_get_heads_list(16);
3554        my @forklist;
3555        my ($check_forks) = gitweb_check_feature('forks');
3556
3557        if ($check_forks) {
3558                @forklist = git_get_projects_list($project);
3559        }
3560
3561        git_header_html();
3562        git_print_page_nav('summary','', $head);
3563
3564        print "<div class=\"title\">&nbsp;</div>\n";
3565        print "<table cellspacing=\"0\">\n" .
3566              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3567              "<tr><td>owner</td><td>$owner</td></tr>\n";
3568        if (defined $cd{'rfc2822'}) {
3569                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3570        }
3571
3572        # use per project git URL list in $projectroot/$project/cloneurl
3573        # or make project git URL from git base URL and project name
3574        my $url_tag = "URL";
3575        my @url_list = git_get_project_url_list($project);
3576        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3577        foreach my $git_url (@url_list) {
3578                next unless $git_url;
3579                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3580                $url_tag = "";
3581        }
3582        print "</table>\n";
3583
3584        if (-s "$projectroot/$project/README.html") {
3585                if (open my $fd, "$projectroot/$project/README.html") {
3586                        print "<div class=\"title\">readme</div>\n";
3587                        print $_ while (<$fd>);
3588                        close $fd;
3589                }
3590        }
3591
3592        # we need to request one more than 16 (0..15) to check if
3593        # those 16 are all
3594        my @commitlist = $head ? parse_commits($head, 17) : ();
3595        if (@commitlist) {
3596                git_print_header_div('shortlog');
3597                git_shortlog_body(\@commitlist, 0, 15, $refs,
3598                                  $#commitlist <=  15 ? undef :
3599                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3600        }
3601
3602        if (@taglist) {
3603                git_print_header_div('tags');
3604                git_tags_body(\@taglist, 0, 15,
3605                              $#taglist <=  15 ? undef :
3606                              $cgi->a({-href => href(action=>"tags")}, "..."));
3607        }
3608
3609        if (@headlist) {
3610                git_print_header_div('heads');
3611                git_heads_body(\@headlist, $head, 0, 15,
3612                               $#headlist <= 15 ? undef :
3613                               $cgi->a({-href => href(action=>"heads")}, "..."));
3614        }
3615
3616        if (@forklist) {
3617                git_print_header_div('forks');
3618                git_project_list_body(\@forklist, undef, 0, 15,
3619                                      $#forklist <= 15 ? undef :
3620                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3621                                      'noheader');
3622        }
3623
3624        git_footer_html();
3625}
3626
3627sub git_tag {
3628        my $head = git_get_head_hash($project);
3629        git_header_html();
3630        git_print_page_nav('','', $head,undef,$head);
3631        my %tag = parse_tag($hash);
3632
3633        if (! %tag) {
3634                die_error(undef, "Unknown tag object");
3635        }
3636
3637        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3638        print "<div class=\"title_text\">\n" .
3639              "<table cellspacing=\"0\">\n" .
3640              "<tr>\n" .
3641              "<td>object</td>\n" .
3642              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3643                               $tag{'object'}) . "</td>\n" .
3644              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3645                                              $tag{'type'}) . "</td>\n" .
3646              "</tr>\n";
3647        if (defined($tag{'author'})) {
3648                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3649                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3650                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3651                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3652                        "</td></tr>\n";
3653        }
3654        print "</table>\n\n" .
3655              "</div>\n";
3656        print "<div class=\"page_body\">";
3657        my $comment = $tag{'comment'};
3658        foreach my $line (@$comment) {
3659                chomp $line;
3660                print esc_html($line, -nbsp=>1) . "<br/>\n";
3661        }
3662        print "</div>\n";
3663        git_footer_html();
3664}
3665
3666sub git_blame2 {
3667        my $fd;
3668        my $ftype;
3669
3670        my ($have_blame) = gitweb_check_feature('blame');
3671        if (!$have_blame) {
3672                die_error('403 Permission denied', "Permission denied");
3673        }
3674        die_error('404 Not Found', "File name not defined") if (!$file_name);
3675        $hash_base ||= git_get_head_hash($project);
3676        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3677        my %co = parse_commit($hash_base)
3678                or die_error(undef, "Reading commit failed");
3679        if (!defined $hash) {
3680                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3681                        or die_error(undef, "Error looking up file");
3682        }
3683        $ftype = git_get_type($hash);
3684        if ($ftype !~ "blob") {
3685                die_error('400 Bad Request', "Object is not a blob");
3686        }
3687        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3688              $file_name, $hash_base)
3689                or die_error(undef, "Open git-blame failed");
3690        git_header_html();
3691        my $formats_nav =
3692                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3693                        "blob") .
3694                " | " .
3695                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3696                        "history") .
3697                " | " .
3698                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3699                        "HEAD");
3700        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3701        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3702        git_print_page_path($file_name, $ftype, $hash_base);
3703        my @rev_color = (qw(light2 dark2));
3704        my $num_colors = scalar(@rev_color);
3705        my $current_color = 0;
3706        my $last_rev;
3707        print <<HTML;
3708<div class="page_body">
3709<table class="blame">
3710<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3711HTML
3712        my %metainfo = ();
3713        while (1) {
3714                $_ = <$fd>;
3715                last unless defined $_;
3716                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3717                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3718                if (!exists $metainfo{$full_rev}) {
3719                        $metainfo{$full_rev} = {};
3720                }
3721                my $meta = $metainfo{$full_rev};
3722                while (<$fd>) {
3723                        last if (s/^\t//);
3724                        if (/^(\S+) (.*)$/) {
3725                                $meta->{$1} = $2;
3726                        }
3727                }
3728                my $data = $_;
3729                chomp $data;
3730                my $rev = substr($full_rev, 0, 8);
3731                my $author = $meta->{'author'};
3732                my %date = parse_date($meta->{'author-time'},
3733                                      $meta->{'author-tz'});
3734                my $date = $date{'iso-tz'};
3735                if ($group_size) {
3736                        $current_color = ++$current_color % $num_colors;
3737                }
3738                print "<tr class=\"$rev_color[$current_color]\">\n";
3739                if ($group_size) {
3740                        print "<td class=\"sha1\"";
3741                        print " title=\"". esc_html($author) . ", $date\"";
3742                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3743                        print ">";
3744                        print $cgi->a({-href => href(action=>"commit",
3745                                                     hash=>$full_rev,
3746                                                     file_name=>$file_name)},
3747                                      esc_html($rev));
3748                        print "</td>\n";
3749                }
3750                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3751                        or die_error(undef, "Open git-rev-parse failed");
3752                my $parent_commit = <$dd>;
3753                close $dd;
3754                chomp($parent_commit);
3755                my $blamed = href(action => 'blame',
3756                                  file_name => $meta->{'filename'},
3757                                  hash_base => $parent_commit);
3758                print "<td class=\"linenr\">";
3759                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3760                                -id => "l$lineno",
3761                                -class => "linenr" },
3762                              esc_html($lineno));
3763                print "</td>";
3764                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3765                print "</tr>\n";
3766        }
3767        print "</table>\n";
3768        print "</div>";
3769        close $fd
3770                or print "Reading blob failed\n";
3771        git_footer_html();
3772}
3773
3774sub git_blame {
3775        my $fd;
3776
3777        my ($have_blame) = gitweb_check_feature('blame');
3778        if (!$have_blame) {
3779                die_error('403 Permission denied', "Permission denied");
3780        }
3781        die_error('404 Not Found', "File name not defined") if (!$file_name);
3782        $hash_base ||= git_get_head_hash($project);
3783        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3784        my %co = parse_commit($hash_base)
3785                or die_error(undef, "Reading commit failed");
3786        if (!defined $hash) {
3787                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3788                        or die_error(undef, "Error lookup file");
3789        }
3790        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3791                or die_error(undef, "Open git-annotate failed");
3792        git_header_html();
3793        my $formats_nav =
3794                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3795                        "blob") .
3796                " | " .
3797                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3798                        "history") .
3799                " | " .
3800                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3801                        "HEAD");
3802        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3803        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3804        git_print_page_path($file_name, 'blob', $hash_base);
3805        print "<div class=\"page_body\">\n";
3806        print <<HTML;
3807<table class="blame">
3808  <tr>
3809    <th>Commit</th>
3810    <th>Age</th>
3811    <th>Author</th>
3812    <th>Line</th>
3813    <th>Data</th>
3814  </tr>
3815HTML
3816        my @line_class = (qw(light dark));
3817        my $line_class_len = scalar (@line_class);
3818        my $line_class_num = $#line_class;
3819        while (my $line = <$fd>) {
3820                my $long_rev;
3821                my $short_rev;
3822                my $author;
3823                my $time;
3824                my $lineno;
3825                my $data;
3826                my $age;
3827                my $age_str;
3828                my $age_class;
3829
3830                chomp $line;
3831                $line_class_num = ($line_class_num + 1) % $line_class_len;
3832
3833                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3834                        $long_rev = $1;
3835                        $author   = $2;
3836                        $time     = $3;
3837                        $lineno   = $4;
3838                        $data     = $5;
3839                } else {
3840                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3841                        next;
3842                }
3843                $short_rev  = substr ($long_rev, 0, 8);
3844                $age        = time () - $time;
3845                $age_str    = age_string ($age);
3846                $age_str    =~ s/ /&nbsp;/g;
3847                $age_class  = age_class($age);
3848                $author     = esc_html ($author);
3849                $author     =~ s/ /&nbsp;/g;
3850
3851                $data = untabify($data);
3852                $data = esc_html ($data);
3853
3854                print <<HTML;
3855  <tr class="$line_class[$line_class_num]">
3856    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3857    <td class="$age_class">$age_str</td>
3858    <td>$author</td>
3859    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3860    <td class="pre">$data</td>
3861  </tr>
3862HTML
3863        } # while (my $line = <$fd>)
3864        print "</table>\n\n";
3865        close $fd
3866                or print "Reading blob failed.\n";
3867        print "</div>";
3868        git_footer_html();
3869}
3870
3871sub git_tags {
3872        my $head = git_get_head_hash($project);
3873        git_header_html();
3874        git_print_page_nav('','', $head,undef,$head);
3875        git_print_header_div('summary', $project);
3876
3877        my @tagslist = git_get_tags_list();
3878        if (@tagslist) {
3879                git_tags_body(\@tagslist);
3880        }
3881        git_footer_html();
3882}
3883
3884sub git_heads {
3885        my $head = git_get_head_hash($project);
3886        git_header_html();
3887        git_print_page_nav('','', $head,undef,$head);
3888        git_print_header_div('summary', $project);
3889
3890        my @headslist = git_get_heads_list();
3891        if (@headslist) {
3892                git_heads_body(\@headslist, $head);
3893        }
3894        git_footer_html();
3895}
3896
3897sub git_blob_plain {
3898        my $expires;
3899
3900        if (!defined $hash) {
3901                if (defined $file_name) {
3902                        my $base = $hash_base || git_get_head_hash($project);
3903                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3904                                or die_error(undef, "Error lookup file");
3905                } else {
3906                        die_error(undef, "No file name defined");
3907                }
3908        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3909                # blobs defined by non-textual hash id's can be cached
3910                $expires = "+1d";
3911        }
3912
3913        my $type = shift;
3914        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3915                or die_error(undef, "Couldn't cat $file_name, $hash");
3916
3917        $type ||= blob_mimetype($fd, $file_name);
3918
3919        # save as filename, even when no $file_name is given
3920        my $save_as = "$hash";
3921        if (defined $file_name) {
3922                $save_as = $file_name;
3923        } elsif ($type =~ m/^text\//) {
3924                $save_as .= '.txt';
3925        }
3926
3927        print $cgi->header(
3928                -type => "$type",
3929                -expires=>$expires,
3930                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3931        undef $/;
3932        binmode STDOUT, ':raw';
3933        print <$fd>;
3934        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3935        $/ = "\n";
3936        close $fd;
3937}
3938
3939sub git_blob {
3940        my $expires;
3941
3942        if (!defined $hash) {
3943                if (defined $file_name) {
3944                        my $base = $hash_base || git_get_head_hash($project);
3945                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3946                                or die_error(undef, "Error lookup file");
3947                } else {
3948                        die_error(undef, "No file name defined");
3949                }
3950        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3951                # blobs defined by non-textual hash id's can be cached
3952                $expires = "+1d";
3953        }
3954
3955        my ($have_blame) = gitweb_check_feature('blame');
3956        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3957                or die_error(undef, "Couldn't cat $file_name, $hash");
3958        my $mimetype = blob_mimetype($fd, $file_name);
3959        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3960                close $fd;
3961                return git_blob_plain($mimetype);
3962        }
3963        # we can have blame only for text/* mimetype
3964        $have_blame &&= ($mimetype =~ m!^text/!);
3965
3966        git_header_html(undef, $expires);
3967        my $formats_nav = '';
3968        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3969                if (defined $file_name) {
3970                        if ($have_blame) {
3971                                $formats_nav .=
3972                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3973                                                               hash=>$hash, file_name=>$file_name)},
3974                                                "blame") .
3975                                        " | ";
3976                        }
3977                        $formats_nav .=
3978                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3979                                                       hash=>$hash, file_name=>$file_name)},
3980                                        "history") .
3981                                " | " .
3982                                $cgi->a({-href => href(action=>"blob_plain",
3983                                                       hash=>$hash, file_name=>$file_name)},
3984                                        "raw") .
3985                                " | " .
3986                                $cgi->a({-href => href(action=>"blob",
3987                                                       hash_base=>"HEAD", file_name=>$file_name)},
3988                                        "HEAD");
3989                } else {
3990                        $formats_nav .=
3991                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3992                }
3993                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3994                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3995        } else {
3996                print "<div class=\"page_nav\">\n" .
3997                      "<br/><br/></div>\n" .
3998                      "<div class=\"title\">$hash</div>\n";
3999        }
4000        git_print_page_path($file_name, "blob", $hash_base);
4001        print "<div class=\"page_body\">\n";
4002        if ($mimetype =~ m!^text/!) {
4003                my $nr;
4004                while (my $line = <$fd>) {
4005                        chomp $line;
4006                        $nr++;
4007                        $line = untabify($line);
4008                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4009                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4010                }
4011        } elsif ($mimetype =~ m!^image/!) {
4012                print qq!<img type="$mimetype"!;
4013                if ($file_name) {
4014                        print qq! alt="$file_name" title="$file_name"!;
4015                }
4016                print qq! src="! .
4017                      href(action=>"blob_plain", hash=>$hash,
4018                           hash_base=>$hash_base, file_name=>$file_name) .
4019                      qq!" />\n!;
4020        }
4021        close $fd
4022                or print "Reading blob failed.\n";
4023        print "</div>";
4024        git_footer_html();
4025}
4026
4027sub git_tree {
4028        my $have_snapshot = gitweb_have_snapshot();
4029
4030        if (!defined $hash_base) {
4031                $hash_base = "HEAD";
4032        }
4033        if (!defined $hash) {
4034                if (defined $file_name) {
4035                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4036                } else {
4037                        $hash = $hash_base;
4038                }
4039        }
4040        $/ = "\0";
4041        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4042                or die_error(undef, "Open git-ls-tree failed");
4043        my @entries = map { chomp; $_ } <$fd>;
4044        close $fd or die_error(undef, "Reading tree failed");
4045        $/ = "\n";
4046
4047        my $refs = git_get_references();
4048        my $ref = format_ref_marker($refs, $hash_base);
4049        git_header_html();
4050        my $basedir = '';
4051        my ($have_blame) = gitweb_check_feature('blame');
4052        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4053                my @views_nav = ();
4054                if (defined $file_name) {
4055                        push @views_nav,
4056                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
4057                                                       hash=>$hash, file_name=>$file_name)},
4058                                        "history"),
4059                                $cgi->a({-href => href(action=>"tree",
4060                                                       hash_base=>"HEAD", file_name=>$file_name)},
4061                                        "HEAD"),
4062                }
4063                if ($have_snapshot) {
4064                        # FIXME: Should be available when we have no hash base as well.
4065                        push @views_nav,
4066                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
4067                                        "snapshot");
4068                }
4069                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4070                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4071        } else {
4072                undef $hash_base;
4073                print "<div class=\"page_nav\">\n";
4074                print "<br/><br/></div>\n";
4075                print "<div class=\"title\">$hash</div>\n";
4076        }
4077        if (defined $file_name) {
4078                $basedir = $file_name;
4079                if ($basedir ne '' && substr($basedir, -1) ne '/') {
4080                        $basedir .= '/';
4081                }
4082        }
4083        git_print_page_path($file_name, 'tree', $hash_base);
4084        print "<div class=\"page_body\">\n";
4085        print "<table cellspacing=\"0\">\n";
4086        my $alternate = 1;
4087        # '..' (top directory) link if possible
4088        if (defined $hash_base &&
4089            defined $file_name && $file_name =~ m![^/]+$!) {
4090                if ($alternate) {
4091                        print "<tr class=\"dark\">\n";
4092                } else {
4093                        print "<tr class=\"light\">\n";
4094                }
4095                $alternate ^= 1;
4096
4097                my $up = $file_name;
4098                $up =~ s!/?[^/]+$!!;
4099                undef $up unless $up;
4100                # based on git_print_tree_entry
4101                print '<td class="mode">' . mode_str('040000') . "</td>\n";
4102                print '<td class="list">';
4103                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4104                                             file_name=>$up)},
4105                              "..");
4106                print "</td>\n";
4107                print "<td class=\"link\"></td>\n";
4108
4109                print "</tr>\n";
4110        }
4111        foreach my $line (@entries) {
4112                my %t = parse_ls_tree_line($line, -z => 1);
4113
4114                if ($alternate) {
4115                        print "<tr class=\"dark\">\n";
4116                } else {
4117                        print "<tr class=\"light\">\n";
4118                }
4119                $alternate ^= 1;
4120
4121                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4122
4123                print "</tr>\n";
4124        }
4125        print "</table>\n" .
4126              "</div>";
4127        git_footer_html();
4128}
4129
4130sub git_snapshot {
4131        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
4132        my $have_snapshot = (defined $ctype && defined $suffix);
4133        if (!$have_snapshot) {
4134                die_error('403 Permission denied', "Permission denied");
4135        }
4136
4137        if (!defined $hash) {
4138                $hash = git_get_head_hash($project);
4139        }
4140
4141        my $git = git_cmd_str();
4142        my $name = $project;
4143        $name =~ s/\047/\047\\\047\047/g;
4144        my $filename = to_utf8(basename($project));
4145        my $cmd;
4146        if ($suffix eq 'zip') {
4147                $filename .= "-$hash.$suffix";
4148                $cmd = "$git archive --format=zip --prefix=\'$name\'/ $hash";
4149        } else {
4150                $filename .= "-$hash.tar.$suffix";
4151                $cmd = "$git archive --format=tar --prefix=\'$name\'/ $hash | $command";
4152        }
4153
4154        print $cgi->header(
4155                -type => "application/$ctype",
4156                -content_disposition => 'inline; filename="' . "$filename" . '"',
4157                -status => '200 OK');
4158
4159        open my $fd, "-|", $cmd
4160                or die_error(undef, "Execute git-archive failed");
4161        binmode STDOUT, ':raw';
4162        print <$fd>;
4163        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4164        close $fd;
4165
4166}
4167
4168sub git_log {
4169        my $head = git_get_head_hash($project);
4170        if (!defined $hash) {
4171                $hash = $head;
4172        }
4173        if (!defined $page) {
4174                $page = 0;
4175        }
4176        my $refs = git_get_references();
4177
4178        my @commitlist = parse_commits($hash, 101, (100 * $page));
4179
4180        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
4181
4182        git_header_html();
4183        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4184
4185        if (!@commitlist) {
4186                my %co = parse_commit($hash);
4187
4188                git_print_header_div('summary', $project);
4189                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4190        }
4191        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4192        for (my $i = 0; $i <= $to; $i++) {
4193                my %co = %{$commitlist[$i]};
4194                next if !%co;
4195                my $commit = $co{'id'};
4196                my $ref = format_ref_marker($refs, $commit);
4197                my %ad = parse_date($co{'author_epoch'});
4198                git_print_header_div('commit',
4199                               "<span class=\"age\">$co{'age_string'}</span>" .
4200                               esc_html($co{'title'}) . $ref,
4201                               $commit);
4202                print "<div class=\"title_text\">\n" .
4203                      "<div class=\"log_link\">\n" .
4204                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4205                      " | " .
4206                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4207                      " | " .
4208                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4209                      "<br/>\n" .
4210                      "</div>\n" .
4211                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4212                      "</div>\n";
4213
4214                print "<div class=\"log_body\">\n";
4215                git_print_log($co{'comment'}, -final_empty_line=> 1);
4216                print "</div>\n";
4217        }
4218        if ($#commitlist >= 100) {
4219                print "<div class=\"page_nav\">\n";
4220                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
4221                               -accesskey => "n", -title => "Alt-n"}, "next");
4222                print "</div>\n";
4223        }
4224        git_footer_html();
4225}
4226
4227sub git_commit {
4228        $hash ||= $hash_base || "HEAD";
4229        my %co = parse_commit($hash);
4230        if (!%co) {
4231                die_error(undef, "Unknown commit object");
4232        }
4233        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4234        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4235
4236        my $parent  = $co{'parent'};
4237        my $parents = $co{'parents'}; # listref
4238
4239        # we need to prepare $formats_nav before any parameter munging
4240        my $formats_nav;
4241        if (!defined $parent) {
4242                # --root commitdiff
4243                $formats_nav .= '(initial)';
4244        } elsif (@$parents == 1) {
4245                # single parent commit
4246                $formats_nav .=
4247                        '(parent: ' .
4248                        $cgi->a({-href => href(action=>"commit",
4249                                               hash=>$parent)},
4250                                esc_html(substr($parent, 0, 7))) .
4251                        ')';
4252        } else {
4253                # merge commit
4254                $formats_nav .=
4255                        '(merge: ' .
4256                        join(' ', map {
4257                                $cgi->a({-href => href(action=>"commit",
4258                                                       hash=>$_)},
4259                                        esc_html(substr($_, 0, 7)));
4260                        } @$parents ) .
4261                        ')';
4262        }
4263
4264        if (!defined $parent) {
4265                $parent = "--root";
4266        }
4267        my @difftree;
4268        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4269                @diff_opts,
4270                (@$parents <= 1 ? $parent : '-c'),
4271                $hash, "--"
4272                or die_error(undef, "Open git-diff-tree failed");
4273        @difftree = map { chomp; $_ } <$fd>;
4274        close $fd or die_error(undef, "Reading git-diff-tree failed");
4275
4276        # non-textual hash id's can be cached
4277        my $expires;
4278        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4279                $expires = "+1d";
4280        }
4281        my $refs = git_get_references();
4282        my $ref = format_ref_marker($refs, $co{'id'});
4283
4284        my $have_snapshot = gitweb_have_snapshot();
4285
4286        git_header_html(undef, $expires);
4287        git_print_page_nav('commit', '',
4288                           $hash, $co{'tree'}, $hash,
4289                           $formats_nav);
4290
4291        if (defined $co{'parent'}) {
4292                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4293        } else {
4294                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4295        }
4296        print "<div class=\"title_text\">\n" .
4297              "<table cellspacing=\"0\">\n";
4298        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4299              "<tr>" .
4300              "<td></td><td> $ad{'rfc2822'}";
4301        if ($ad{'hour_local'} < 6) {
4302                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4303                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4304        } else {
4305                printf(" (%02d:%02d %s)",
4306                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4307        }
4308        print "</td>" .
4309              "</tr>\n";
4310        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4311        print "<tr><td></td><td> $cd{'rfc2822'}" .
4312              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4313              "</td></tr>\n";
4314        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4315        print "<tr>" .
4316              "<td>tree</td>" .
4317              "<td class=\"sha1\">" .
4318              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4319                       class => "list"}, $co{'tree'}) .
4320              "</td>" .
4321              "<td class=\"link\">" .
4322              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4323                      "tree");
4324        if ($have_snapshot) {
4325                print " | " .
4326                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
4327        }
4328        print "</td>" .
4329              "</tr>\n";
4330
4331        foreach my $par (@$parents) {
4332                print "<tr>" .
4333                      "<td>parent</td>" .
4334                      "<td class=\"sha1\">" .
4335                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4336                               class => "list"}, $par) .
4337                      "</td>" .
4338                      "<td class=\"link\">" .
4339                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4340                      " | " .
4341                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4342                      "</td>" .
4343                      "</tr>\n";
4344        }
4345        print "</table>".
4346              "</div>\n";
4347
4348        print "<div class=\"page_body\">\n";
4349        git_print_log($co{'comment'});
4350        print "</div>\n";
4351
4352        git_difftree_body(\@difftree, $hash, @$parents);
4353
4354        git_footer_html();
4355}
4356
4357sub git_object {
4358        # object is defined by:
4359        # - hash or hash_base alone
4360        # - hash_base and file_name
4361        my $type;
4362
4363        # - hash or hash_base alone
4364        if ($hash || ($hash_base && !defined $file_name)) {
4365                my $object_id = $hash || $hash_base;
4366
4367                my $git_command = git_cmd_str();
4368                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4369                        or die_error('404 Not Found', "Object does not exist");
4370                $type = <$fd>;
4371                chomp $type;
4372                close $fd
4373                        or die_error('404 Not Found', "Object does not exist");
4374
4375        # - hash_base and file_name
4376        } elsif ($hash_base && defined $file_name) {
4377                $file_name =~ s,/+$,,;
4378
4379                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4380                        or die_error('404 Not Found', "Base object does not exist");
4381
4382                # here errors should not hapen
4383                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4384                        or die_error(undef, "Open git-ls-tree failed");
4385                my $line = <$fd>;
4386                close $fd;
4387
4388                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4389                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4390                        die_error('404 Not Found', "File or directory for given base does not exist");
4391                }
4392                $type = $2;
4393                $hash = $3;
4394        } else {
4395                die_error('404 Not Found', "Not enough information to find object");
4396        }
4397
4398        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4399                                          hash=>$hash, hash_base=>$hash_base,
4400                                          file_name=>$file_name),
4401                             -status => '302 Found');
4402}
4403
4404sub git_blobdiff {
4405        my $format = shift || 'html';
4406
4407        my $fd;
4408        my @difftree;
4409        my %diffinfo;
4410        my $expires;
4411
4412        # preparing $fd and %diffinfo for git_patchset_body
4413        # new style URI
4414        if (defined $hash_base && defined $hash_parent_base) {
4415                if (defined $file_name) {
4416                        # read raw output
4417                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4418                                $hash_parent_base, $hash_base,
4419                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4420                                or die_error(undef, "Open git-diff-tree failed");
4421                        @difftree = map { chomp; $_ } <$fd>;
4422                        close $fd
4423                                or die_error(undef, "Reading git-diff-tree failed");
4424                        @difftree
4425                                or die_error('404 Not Found', "Blob diff not found");
4426
4427                } elsif (defined $hash &&
4428                         $hash =~ /[0-9a-fA-F]{40}/) {
4429                        # try to find filename from $hash
4430
4431                        # read filtered raw output
4432                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4433                                $hash_parent_base, $hash_base, "--"
4434                                or die_error(undef, "Open git-diff-tree failed");
4435                        @difftree =
4436                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4437                                # $hash == to_id
4438                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4439                                map { chomp; $_ } <$fd>;
4440                        close $fd
4441                                or die_error(undef, "Reading git-diff-tree failed");
4442                        @difftree
4443                                or die_error('404 Not Found', "Blob diff not found");
4444
4445                } else {
4446                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4447                }
4448
4449                if (@difftree > 1) {
4450                        die_error('404 Not Found', "Ambiguous blob diff specification");
4451                }
4452
4453                %diffinfo = parse_difftree_raw_line($difftree[0]);
4454                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4455                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4456
4457                $hash_parent ||= $diffinfo{'from_id'};
4458                $hash        ||= $diffinfo{'to_id'};
4459
4460                # non-textual hash id's can be cached
4461                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4462                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4463                        $expires = '+1d';
4464                }
4465
4466                # open patch output
4467                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4468                        '-p', ($format eq 'html' ? "--full-index" : ()),
4469                        $hash_parent_base, $hash_base,
4470                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4471                        or die_error(undef, "Open git-diff-tree failed");
4472        }
4473
4474        # old/legacy style URI
4475        if (!%diffinfo && # if new style URI failed
4476            defined $hash && defined $hash_parent) {
4477                # fake git-diff-tree raw output
4478                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4479                $diffinfo{'from_id'} = $hash_parent;
4480                $diffinfo{'to_id'}   = $hash;
4481                if (defined $file_name) {
4482                        if (defined $file_parent) {
4483                                $diffinfo{'status'} = '2';
4484                                $diffinfo{'from_file'} = $file_parent;
4485                                $diffinfo{'to_file'}   = $file_name;
4486                        } else { # assume not renamed
4487                                $diffinfo{'status'} = '1';
4488                                $diffinfo{'from_file'} = $file_name;
4489                                $diffinfo{'to_file'}   = $file_name;
4490                        }
4491                } else { # no filename given
4492                        $diffinfo{'status'} = '2';
4493                        $diffinfo{'from_file'} = $hash_parent;
4494                        $diffinfo{'to_file'}   = $hash;
4495                }
4496
4497                # non-textual hash id's can be cached
4498                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4499                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4500                        $expires = '+1d';
4501                }
4502
4503                # open patch output
4504                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4505                        '-p', ($format eq 'html' ? "--full-index" : ()),
4506                        $hash_parent, $hash, "--"
4507                        or die_error(undef, "Open git-diff failed");
4508        } else  {
4509                die_error('404 Not Found', "Missing one of the blob diff parameters")
4510                        unless %diffinfo;
4511        }
4512
4513        # header
4514        if ($format eq 'html') {
4515                my $formats_nav =
4516                        $cgi->a({-href => href(action=>"blobdiff_plain",
4517                                               hash=>$hash, hash_parent=>$hash_parent,
4518                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4519                                               file_name=>$file_name, file_parent=>$file_parent)},
4520                                "raw");
4521                git_header_html(undef, $expires);
4522                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4523                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4524                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4525                } else {
4526                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4527                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4528                }
4529                if (defined $file_name) {
4530                        git_print_page_path($file_name, "blob", $hash_base);
4531                } else {
4532                        print "<div class=\"page_path\"></div>\n";
4533                }
4534
4535        } elsif ($format eq 'plain') {
4536                print $cgi->header(
4537                        -type => 'text/plain',
4538                        -charset => 'utf-8',
4539                        -expires => $expires,
4540                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4541
4542                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4543
4544        } else {
4545                die_error(undef, "Unknown blobdiff format");
4546        }
4547
4548        # patch
4549        if ($format eq 'html') {
4550                print "<div class=\"page_body\">\n";
4551
4552                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4553                close $fd;
4554
4555                print "</div>\n"; # class="page_body"
4556                git_footer_html();
4557
4558        } else {
4559                while (my $line = <$fd>) {
4560                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4561                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4562
4563                        print $line;
4564
4565                        last if $line =~ m!^\+\+\+!;
4566                }
4567                local $/ = undef;
4568                print <$fd>;
4569                close $fd;
4570        }
4571}
4572
4573sub git_blobdiff_plain {
4574        git_blobdiff('plain');
4575}
4576
4577sub git_commitdiff {
4578        my $format = shift || 'html';
4579        $hash ||= $hash_base || "HEAD";
4580        my %co = parse_commit($hash);
4581        if (!%co) {
4582                die_error(undef, "Unknown commit object");
4583        }
4584
4585        # we need to prepare $formats_nav before any parameter munging
4586        my $formats_nav;
4587        if ($format eq 'html') {
4588                $formats_nav =
4589                        $cgi->a({-href => href(action=>"commitdiff_plain",
4590                                               hash=>$hash, hash_parent=>$hash_parent)},
4591                                "raw");
4592
4593                if (defined $hash_parent) {
4594                        # commitdiff with two commits given
4595                        my $hash_parent_short = $hash_parent;
4596                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4597                                $hash_parent_short = substr($hash_parent, 0, 7);
4598                        }
4599                        $formats_nav .=
4600                                ' (from';
4601                        for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
4602                                if ($co{'parents'}[$i] eq $hash_parent) {
4603                                        $formats_nav .= ' parent ' . ($i+1);
4604                                        last;
4605                                }
4606                        }
4607                        $formats_nav .= ': ' .
4608                                $cgi->a({-href => href(action=>"commitdiff",
4609                                                       hash=>$hash_parent)},
4610                                        esc_html($hash_parent_short)) .
4611                                ')';
4612                } elsif (!$co{'parent'}) {
4613                        # --root commitdiff
4614                        $formats_nav .= ' (initial)';
4615                } elsif (scalar @{$co{'parents'}} == 1) {
4616                        # single parent commit
4617                        $formats_nav .=
4618                                ' (parent: ' .
4619                                $cgi->a({-href => href(action=>"commitdiff",
4620                                                       hash=>$co{'parent'})},
4621                                        esc_html(substr($co{'parent'}, 0, 7))) .
4622                                ')';
4623                } else {
4624                        # merge commit
4625                        $formats_nav .=
4626                                ' (merge: ' .
4627                                join(' ', map {
4628                                        $cgi->a({-href => href(action=>"commitdiff",
4629                                                               hash=>$_)},
4630                                                esc_html(substr($_, 0, 7)));
4631                                } @{$co{'parents'}} ) .
4632                                ')';
4633                }
4634        }
4635
4636        my $hash_parent_param = $hash_parent;
4637        if (!defined $hash_parent) {
4638                $hash_parent_param =
4639                        @{$co{'parents'}} > 1 ? '-c' : $co{'parent'} || '--root';
4640        }
4641
4642        # read commitdiff
4643        my $fd;
4644        my @difftree;
4645        if ($format eq 'html') {
4646                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4647                        "--no-commit-id", "--patch-with-raw", "--full-index",
4648                        $hash_parent_param, $hash, "--"
4649                        or die_error(undef, "Open git-diff-tree failed");
4650
4651                while (my $line = <$fd>) {
4652                        chomp $line;
4653                        # empty line ends raw part of diff-tree output
4654                        last unless $line;
4655                        push @difftree, scalar parse_difftree_raw_line($line);
4656                }
4657
4658        } elsif ($format eq 'plain') {
4659                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4660                        '-p', $hash_parent_param, $hash, "--"
4661                        or die_error(undef, "Open git-diff-tree failed");
4662
4663        } else {
4664                die_error(undef, "Unknown commitdiff format");
4665        }
4666
4667        # non-textual hash id's can be cached
4668        my $expires;
4669        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4670                $expires = "+1d";
4671        }
4672
4673        # write commit message
4674        if ($format eq 'html') {
4675                my $refs = git_get_references();
4676                my $ref = format_ref_marker($refs, $co{'id'});
4677
4678                git_header_html(undef, $expires);
4679                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4680                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4681                git_print_authorship(\%co);
4682                print "<div class=\"page_body\">\n";
4683                if (@{$co{'comment'}} > 1) {
4684                        print "<div class=\"log\">\n";
4685                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4686                        print "</div>\n"; # class="log"
4687                }
4688
4689        } elsif ($format eq 'plain') {
4690                my $refs = git_get_references("tags");
4691                my $tagname = git_get_rev_name_tags($hash);
4692                my $filename = basename($project) . "-$hash.patch";
4693
4694                print $cgi->header(
4695                        -type => 'text/plain',
4696                        -charset => 'utf-8',
4697                        -expires => $expires,
4698                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4699                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4700                print <<TEXT;
4701From: $co{'author'}
4702Date: $ad{'rfc2822'} ($ad{'tz_local'})
4703Subject: $co{'title'}
4704TEXT
4705                print "X-Git-Tag: $tagname\n" if $tagname;
4706                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4707
4708                foreach my $line (@{$co{'comment'}}) {
4709                        print "$line\n";
4710                }
4711                print "---\n\n";
4712        }
4713
4714        # write patch
4715        if ($format eq 'html') {
4716                git_difftree_body(\@difftree, $hash, $hash_parent || @{$co{'parents'}});
4717                print "<br/>\n";
4718
4719                git_patchset_body($fd, \@difftree, $hash, $hash_parent || @{$co{'parents'}});
4720                close $fd;
4721                print "</div>\n"; # class="page_body"
4722                git_footer_html();
4723
4724        } elsif ($format eq 'plain') {
4725                local $/ = undef;
4726                print <$fd>;
4727                close $fd
4728                        or print "Reading git-diff-tree failed\n";
4729        }
4730}
4731
4732sub git_commitdiff_plain {
4733        git_commitdiff('plain');
4734}
4735
4736sub git_history {
4737        if (!defined $hash_base) {
4738                $hash_base = git_get_head_hash($project);
4739        }
4740        if (!defined $page) {
4741                $page = 0;
4742        }
4743        my $ftype;
4744        my %co = parse_commit($hash_base);
4745        if (!%co) {
4746                die_error(undef, "Unknown commit object");
4747        }
4748
4749        my $refs = git_get_references();
4750        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4751
4752        if (!defined $hash && defined $file_name) {
4753                $hash = git_get_hash_by_path($hash_base, $file_name);
4754        }
4755        if (defined $hash) {
4756                $ftype = git_get_type($hash);
4757        }
4758
4759        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4760
4761        my $paging_nav = '';
4762        if ($page > 0) {
4763                $paging_nav .=
4764                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4765                                               file_name=>$file_name)},
4766                                "first");
4767                $paging_nav .= " &sdot; " .
4768                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4769                                               file_name=>$file_name, page=>$page-1),
4770                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4771        } else {
4772                $paging_nav .= "first";
4773                $paging_nav .= " &sdot; prev";
4774        }
4775        if ($#commitlist >= 100) {
4776                $paging_nav .= " &sdot; " .
4777                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4778                                               file_name=>$file_name, page=>$page+1),
4779                                 -accesskey => "n", -title => "Alt-n"}, "next");
4780        } else {
4781                $paging_nav .= " &sdot; next";
4782        }
4783        my $next_link = '';
4784        if ($#commitlist >= 100) {
4785                $next_link =
4786                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4787                                               file_name=>$file_name, page=>$page+1),
4788                                 -accesskey => "n", -title => "Alt-n"}, "next");
4789        }
4790
4791        git_header_html();
4792        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4793        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4794        git_print_page_path($file_name, $ftype, $hash_base);
4795
4796        git_history_body(\@commitlist, 0, 99,
4797                         $refs, $hash_base, $ftype, $next_link);
4798
4799        git_footer_html();
4800}
4801
4802sub git_search {
4803        my ($have_search) = gitweb_check_feature('search');
4804        if (!$have_search) {
4805                die_error('403 Permission denied', "Permission denied");
4806        }
4807        if (!defined $searchtext) {
4808                die_error(undef, "Text field empty");
4809        }
4810        if (!defined $hash) {
4811                $hash = git_get_head_hash($project);
4812        }
4813        my %co = parse_commit($hash);
4814        if (!%co) {
4815                die_error(undef, "Unknown commit object");
4816        }
4817        if (!defined $page) {
4818                $page = 0;
4819        }
4820
4821        $searchtype ||= 'commit';
4822        if ($searchtype eq 'pickaxe') {
4823                # pickaxe may take all resources of your box and run for several minutes
4824                # with every query - so decide by yourself how public you make this feature
4825                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4826                if (!$have_pickaxe) {
4827                        die_error('403 Permission denied', "Permission denied");
4828                }
4829        }
4830        if ($searchtype eq 'grep') {
4831                my ($have_grep) = gitweb_check_feature('grep');
4832                if (!$have_grep) {
4833                        die_error('403 Permission denied', "Permission denied");
4834                }
4835        }
4836
4837        git_header_html();
4838
4839        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4840                my $greptype;
4841                if ($searchtype eq 'commit') {
4842                        $greptype = "--grep=";
4843                } elsif ($searchtype eq 'author') {
4844                        $greptype = "--author=";
4845                } elsif ($searchtype eq 'committer') {
4846                        $greptype = "--committer=";
4847                }
4848                $greptype .= $search_regexp;
4849                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4850
4851                my $paging_nav = '';
4852                if ($page > 0) {
4853                        $paging_nav .=
4854                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4855                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4856                                        "first");
4857                        $paging_nav .= " &sdot; " .
4858                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4859                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4860                                                       page=>$page-1),
4861                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4862                } else {
4863                        $paging_nav .= "first";
4864                        $paging_nav .= " &sdot; prev";
4865                }
4866                if ($#commitlist >= 100) {
4867                        $paging_nav .= " &sdot; " .
4868                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4869                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4870                                                       page=>$page+1),
4871                                         -accesskey => "n", -title => "Alt-n"}, "next");
4872                } else {
4873                        $paging_nav .= " &sdot; next";
4874                }
4875                my $next_link = '';
4876                if ($#commitlist >= 100) {
4877                        $next_link =
4878                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4879                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4880                                                       page=>$page+1),
4881                                         -accesskey => "n", -title => "Alt-n"}, "next");
4882                }
4883
4884                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4885                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4886                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4887        }
4888
4889        if ($searchtype eq 'pickaxe') {
4890                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4891                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4892
4893                print "<table cellspacing=\"0\">\n";
4894                my $alternate = 1;
4895                $/ = "\n";
4896                my $git_command = git_cmd_str();
4897                my $searchqtext = $searchtext;
4898                $searchqtext =~ s/'/'\\''/;
4899                open my $fd, "-|", "$git_command rev-list $hash | " .
4900                        "$git_command diff-tree -r --stdin -S\'$searchqtext\'";
4901                undef %co;
4902                my @files;
4903                while (my $line = <$fd>) {
4904                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4905                                my %set;
4906                                $set{'file'} = $6;
4907                                $set{'from_id'} = $3;
4908                                $set{'to_id'} = $4;
4909                                $set{'id'} = $set{'to_id'};
4910                                if ($set{'id'} =~ m/0{40}/) {
4911                                        $set{'id'} = $set{'from_id'};
4912                                }
4913                                if ($set{'id'} =~ m/0{40}/) {
4914                                        next;
4915                                }
4916                                push @files, \%set;
4917                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4918                                if (%co) {
4919                                        if ($alternate) {
4920                                                print "<tr class=\"dark\">\n";
4921                                        } else {
4922                                                print "<tr class=\"light\">\n";
4923                                        }
4924                                        $alternate ^= 1;
4925                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4926                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4927                                              "<td>" .
4928                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4929                                                      -class => "list subject"},
4930                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4931                                        while (my $setref = shift @files) {
4932                                                my %set = %$setref;
4933                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4934                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4935                                                              -class => "list"},
4936                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4937                                                      "<br/>\n";
4938                                        }
4939                                        print "</td>\n" .
4940                                              "<td class=\"link\">" .
4941                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4942                                              " | " .
4943                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4944                                        print "</td>\n" .
4945                                              "</tr>\n";
4946                                }
4947                                %co = parse_commit($1);
4948                        }
4949                }
4950                close $fd;
4951
4952                print "</table>\n";
4953        }
4954
4955        if ($searchtype eq 'grep') {
4956                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4957                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4958
4959                print "<table cellspacing=\"0\">\n";
4960                my $alternate = 1;
4961                my $matches = 0;
4962                $/ = "\n";
4963                open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'};
4964                my $lastfile = '';
4965                while (my $line = <$fd>) {
4966                        chomp $line;
4967                        my ($file, $lno, $ltext, $binary);
4968                        last if ($matches++ > 1000);
4969                        if ($line =~ /^Binary file (.+) matches$/) {
4970                                $file = $1;
4971                                $binary = 1;
4972                        } else {
4973                                (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
4974                        }
4975                        if ($file ne $lastfile) {
4976                                $lastfile and print "</td></tr>\n";
4977                                if ($alternate++) {
4978                                        print "<tr class=\"dark\">\n";
4979                                } else {
4980                                        print "<tr class=\"light\">\n";
4981                                }
4982                                print "<td class=\"list\">".
4983                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
4984                                                               file_name=>"$file"),
4985                                                -class => "list"}, esc_path($file));
4986                                print "</td><td>\n";
4987                                $lastfile = $file;
4988                        }
4989                        if ($binary) {
4990                                print "<div class=\"binary\">Binary file</div>\n";
4991                        } else {
4992                                $ltext = untabify($ltext);
4993                                if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) {
4994                                        $ltext = esc_html($1, -nbsp=>1);
4995                                        $ltext .= '<span class="match">';
4996                                        $ltext .= esc_html($2, -nbsp=>1);
4997                                        $ltext .= '</span>';
4998                                        $ltext .= esc_html($3, -nbsp=>1);
4999                                } else {
5000                                        $ltext = esc_html($ltext, -nbsp=>1);
5001                                }
5002                                print "<div class=\"pre\">" .
5003                                        $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5004                                                               file_name=>"$file").'#l'.$lno,
5005                                                -class => "linenr"}, sprintf('%4i', $lno))
5006                                        . ' ' .  $ltext . "</div>\n";
5007                        }
5008                }
5009                if ($lastfile) {
5010                        print "</td></tr>\n";
5011                        if ($matches > 1000) {
5012                                print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5013                        }
5014                } else {
5015                        print "<div class=\"diff nodifferences\">No matches found</div>\n";
5016                }
5017                close $fd;
5018
5019                print "</table>\n";
5020        }
5021        git_footer_html();
5022}
5023
5024sub git_search_help {
5025        git_header_html();
5026        git_print_page_nav('','', $hash,$hash,$hash);
5027        print <<EOT;
5028<dl>
5029<dt><b>commit</b></dt>
5030<dd>The commit messages and authorship information will be scanned for the given string.</dd>
5031EOT
5032        my ($have_grep) = gitweb_check_feature('grep');
5033        if ($have_grep) {
5034                print <<EOT;
5035<dt><b>grep</b></dt>
5036<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5037    a different one) are searched for the given
5038<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a>
5039(POSIX extended) and the matches are listed. On large
5040trees, this search can take a while and put some strain on the server, so please use it with
5041some consideration.</dd>
5042EOT
5043        }
5044        print <<EOT;
5045<dt><b>author</b></dt>
5046<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
5047<dt><b>committer</b></dt>
5048<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
5049EOT
5050        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5051        if ($have_pickaxe) {
5052                print <<EOT;
5053<dt><b>pickaxe</b></dt>
5054<dd>All commits that caused the string to appear or disappear from any file (changes that
5055added, removed or "modified" the string) will be listed. This search can take a while and
5056takes a lot of strain on the server, so please use it wisely.</dd>
5057EOT
5058        }
5059        print "</dl>\n";
5060        git_footer_html();
5061}
5062
5063sub git_shortlog {
5064        my $head = git_get_head_hash($project);
5065        if (!defined $hash) {
5066                $hash = $head;
5067        }
5068        if (!defined $page) {
5069                $page = 0;
5070        }
5071        my $refs = git_get_references();
5072
5073        my @commitlist = parse_commits($hash, 101, (100 * $page));
5074
5075        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
5076        my $next_link = '';
5077        if ($#commitlist >= 100) {
5078                $next_link =
5079                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
5080                                 -accesskey => "n", -title => "Alt-n"}, "next");
5081        }
5082
5083        git_header_html();
5084        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5085        git_print_header_div('summary', $project);
5086
5087        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5088
5089        git_footer_html();
5090}
5091
5092## ......................................................................
5093## feeds (RSS, Atom; OPML)
5094
5095sub git_feed {
5096        my $format = shift || 'atom';
5097        my ($have_blame) = gitweb_check_feature('blame');
5098
5099        # Atom: http://www.atomenabled.org/developers/syndication/
5100        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5101        if ($format ne 'rss' && $format ne 'atom') {
5102                die_error(undef, "Unknown web feed format");
5103        }
5104
5105        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5106        my $head = $hash || 'HEAD';
5107        my @commitlist = parse_commits($head, 150);
5108
5109        my %latest_commit;
5110        my %latest_date;
5111        my $content_type = "application/$format+xml";
5112        if (defined $cgi->http('HTTP_ACCEPT') &&
5113                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5114                # browser (feed reader) prefers text/xml
5115                $content_type = 'text/xml';
5116        }
5117        if (defined($commitlist[0])) {
5118                %latest_commit = %{$commitlist[0]};
5119                %latest_date   = parse_date($latest_commit{'author_epoch'});
5120                print $cgi->header(
5121                        -type => $content_type,
5122                        -charset => 'utf-8',
5123                        -last_modified => $latest_date{'rfc2822'});
5124        } else {
5125                print $cgi->header(
5126                        -type => $content_type,
5127                        -charset => 'utf-8');
5128        }
5129
5130        # Optimization: skip generating the body if client asks only
5131        # for Last-Modified date.
5132        return if ($cgi->request_method() eq 'HEAD');
5133
5134        # header variables
5135        my $title = "$site_name - $project/$action";
5136        my $feed_type = 'log';
5137        if (defined $hash) {
5138                $title .= " - '$hash'";
5139                $feed_type = 'branch log';
5140                if (defined $file_name) {
5141                        $title .= " :: $file_name";
5142                        $feed_type = 'history';
5143                }
5144        } elsif (defined $file_name) {
5145                $title .= " - $file_name";
5146                $feed_type = 'history';
5147        }
5148        $title .= " $feed_type";
5149        my $descr = git_get_project_description($project);
5150        if (defined $descr) {
5151                $descr = esc_html($descr);
5152        } else {
5153                $descr = "$project " .
5154                         ($format eq 'rss' ? 'RSS' : 'Atom') .
5155                         " feed";
5156        }
5157        my $owner = git_get_project_owner($project);
5158        $owner = esc_html($owner);
5159
5160        #header
5161        my $alt_url;
5162        if (defined $file_name) {
5163                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5164        } elsif (defined $hash) {
5165                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5166        } else {
5167                $alt_url = href(-full=>1, action=>"summary");
5168        }
5169        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5170        if ($format eq 'rss') {
5171                print <<XML;
5172<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5173<channel>
5174XML
5175                print "<title>$title</title>\n" .
5176                      "<link>$alt_url</link>\n" .
5177                      "<description>$descr</description>\n" .
5178                      "<language>en</language>\n";
5179        } elsif ($format eq 'atom') {
5180                print <<XML;
5181<feed xmlns="http://www.w3.org/2005/Atom">
5182XML
5183                print "<title>$title</title>\n" .
5184                      "<subtitle>$descr</subtitle>\n" .
5185                      '<link rel="alternate" type="text/html" href="' .
5186                      $alt_url . '" />' . "\n" .
5187                      '<link rel="self" type="' . $content_type . '" href="' .
5188                      $cgi->self_url() . '" />' . "\n" .
5189                      "<id>" . href(-full=>1) . "</id>\n" .
5190                      # use project owner for feed author
5191                      "<author><name>$owner</name></author>\n";
5192                if (defined $favicon) {
5193                        print "<icon>" . esc_url($favicon) . "</icon>\n";
5194                }
5195                if (defined $logo_url) {
5196                        # not twice as wide as tall: 72 x 27 pixels
5197                        print "<logo>" . esc_url($logo) . "</logo>\n";
5198                }
5199                if (! %latest_date) {
5200                        # dummy date to keep the feed valid until commits trickle in:
5201                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
5202                } else {
5203                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
5204                }
5205        }
5206
5207        # contents
5208        for (my $i = 0; $i <= $#commitlist; $i++) {
5209                my %co = %{$commitlist[$i]};
5210                my $commit = $co{'id'};
5211                # we read 150, we always show 30 and the ones more recent than 48 hours
5212                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5213                        last;
5214                }
5215                my %cd = parse_date($co{'author_epoch'});
5216
5217                # get list of changed files
5218                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5219                        $co{'parent'} || "--root",
5220                        $co{'id'}, "--", (defined $file_name ? $file_name : ())
5221                        or next;
5222                my @difftree = map { chomp; $_ } <$fd>;
5223                close $fd
5224                        or next;
5225
5226                # print element (entry, item)
5227                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
5228                if ($format eq 'rss') {
5229                        print "<item>\n" .
5230                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
5231                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
5232                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5233                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5234                              "<link>$co_url</link>\n" .
5235                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
5236                              "<content:encoded>" .
5237                              "<![CDATA[\n";
5238                } elsif ($format eq 'atom') {
5239                        print "<entry>\n" .
5240                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5241                              "<updated>$cd{'iso-8601'}</updated>\n" .
5242                              "<author>\n" .
5243                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5244                        if ($co{'author_email'}) {
5245                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5246                        }
5247                        print "</author>\n" .
5248                              # use committer for contributor
5249                              "<contributor>\n" .
5250                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5251                        if ($co{'committer_email'}) {
5252                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5253                        }
5254                        print "</contributor>\n" .
5255                              "<published>$cd{'iso-8601'}</published>\n" .
5256                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5257                              "<id>$co_url</id>\n" .
5258                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5259                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5260                }
5261                my $comment = $co{'comment'};
5262                print "<pre>\n";
5263                foreach my $line (@$comment) {
5264                        $line = esc_html($line);
5265                        print "$line\n";
5266                }
5267                print "</pre><ul>\n";
5268                foreach my $difftree_line (@difftree) {
5269                        my %difftree = parse_difftree_raw_line($difftree_line);
5270                        next if !$difftree{'from_id'};
5271
5272                        my $file = $difftree{'file'} || $difftree{'to_file'};
5273
5274                        print "<li>" .
5275                              "[" .
5276                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5277                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5278                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5279                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
5280                                      -title => "diff"}, 'D');
5281                        if ($have_blame) {
5282                                print $cgi->a({-href => href(-full=>1, action=>"blame",
5283                                                             file_name=>$file, hash_base=>$commit),
5284                                              -title => "blame"}, 'B');
5285                        }
5286                        # if this is not a feed of a file history
5287                        if (!defined $file_name || $file_name ne $file) {
5288                                print $cgi->a({-href => href(-full=>1, action=>"history",
5289                                                             file_name=>$file, hash=>$commit),
5290                                              -title => "history"}, 'H');
5291                        }
5292                        $file = esc_path($file);
5293                        print "] ".
5294                              "$file</li>\n";
5295                }
5296                if ($format eq 'rss') {
5297                        print "</ul>]]>\n" .
5298                              "</content:encoded>\n" .
5299                              "</item>\n";
5300                } elsif ($format eq 'atom') {
5301                        print "</ul>\n</div>\n" .
5302                              "</content>\n" .
5303                              "</entry>\n";
5304                }
5305        }
5306
5307        # end of feed
5308        if ($format eq 'rss') {
5309                print "</channel>\n</rss>\n";
5310        }       elsif ($format eq 'atom') {
5311                print "</feed>\n";
5312        }
5313}
5314
5315sub git_rss {
5316        git_feed('rss');
5317}
5318
5319sub git_atom {
5320        git_feed('atom');
5321}
5322
5323sub git_opml {
5324        my @list = git_get_projects_list();
5325
5326        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5327        print <<XML;
5328<?xml version="1.0" encoding="utf-8"?>
5329<opml version="1.0">
5330<head>
5331  <title>$site_name OPML Export</title>
5332</head>
5333<body>
5334<outline text="git RSS feeds">
5335XML
5336
5337        foreach my $pr (@list) {
5338                my %proj = %$pr;
5339                my $head = git_get_head_hash($proj{'path'});
5340                if (!defined $head) {
5341                        next;
5342                }
5343                $git_dir = "$projectroot/$proj{'path'}";
5344                my %co = parse_commit($head);
5345                if (!%co) {
5346                        next;
5347                }
5348
5349                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5350                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5351                my $html = "$my_url?p=$proj{'path'};a=summary";
5352                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5353        }
5354        print <<XML;
5355</outline>
5356</body>
5357</opml>
5358XML
5359}