Andrew's git / gitweb.git / gitweb/gitweb.perl
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gitweb / gitweb.perlon commit Merge branch 'maint' (7756b1f)
   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
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44# html text to include at home page
  45our $home_text = "++GITWEB_HOMETEXT++";
  46
  47# URI of default stylesheet
  48our $stylesheet = "++GITWEB_CSS++";
  49# URI of GIT logo (72x27 size)
  50our $logo = "++GITWEB_LOGO++";
  51# URI of GIT favicon, assumed to be image/png type
  52our $favicon = "++GITWEB_FAVICON++";
  53
  54# URI and label (title) of GIT logo link
  55#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  56#our $logo_label = "git documentation";
  57our $logo_url = "http://git.or.cz/";
  58our $logo_label = "git homepage";
  59
  60# source of projects list
  61our $projects_list = "++GITWEB_LIST++";
  62
  63# show repository only if this file exists
  64# (only effective if this variable evaluates to true)
  65our $export_ok = "++GITWEB_EXPORT_OK++";
  66
  67# only allow viewing of repositories also shown on the overview page
  68our $strict_export = "++GITWEB_STRICT_EXPORT++";
  69
  70# list of git base URLs used for URL to where fetch project from,
  71# i.e. full URL is "$git_base_url/$project"
  72our @git_base_url_list = ("++GITWEB_BASE_URL++");
  73
  74# default blob_plain mimetype and default charset for text/plain blob
  75our $default_blob_plain_mimetype = 'text/plain';
  76our $default_text_plain_charset  = undef;
  77
  78# file to use for guessing MIME types before trying /etc/mime.types
  79# (relative to the current git repository)
  80our $mimetypes_file = undef;
  81
  82# You define site-wide feature defaults here; override them with
  83# $GITWEB_CONFIG as necessary.
  84our %feature = (
  85        # feature => {
  86        #       'sub' => feature-sub (subroutine),
  87        #       'override' => allow-override (boolean),
  88        #       'default' => [ default options...] (array reference)}
  89        #
  90        # if feature is overridable (it means that allow-override has true value,
  91        # then feature-sub will be called with default options as parameters;
  92        # return value of feature-sub indicates if to enable specified feature
  93        #
  94        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  95
  96        # Enable the 'blame' blob view, showing the last commit that modified
  97        # each line in the file. This can be very CPU-intensive.
  98
  99        # To enable system wide have in $GITWEB_CONFIG
 100        # $feature{'blame'}{'default'} = [1];
 101        # To have project specific config enable override in $GITWEB_CONFIG
 102        # $feature{'blame'}{'override'} = 1;
 103        # and in project config gitweb.blame = 0|1;
 104        'blame' => {
 105                'sub' => \&feature_blame,
 106                'override' => 0,
 107                'default' => [0]},
 108
 109        # Enable the 'snapshot' link, providing a compressed tarball of any
 110        # tree. This can potentially generate high traffic if you have large
 111        # project.
 112
 113        # To disable system wide have in $GITWEB_CONFIG
 114        # $feature{'snapshot'}{'default'} = [undef];
 115        # To have project specific config enable override in $GITWEB_CONFIG
 116        # $feature{'blame'}{'override'} = 1;
 117        # and in project config gitweb.snapshot = none|gzip|bzip2;
 118        'snapshot' => {
 119                'sub' => \&feature_snapshot,
 120                'override' => 0,
 121                #         => [content-encoding, suffix, program]
 122                'default' => ['x-gzip', 'gz', 'gzip']},
 123
 124        # Enable the pickaxe search, which will list the commits that modified
 125        # a given string in a file. This can be practical and quite faster
 126        # alternative to 'blame', but still potentially CPU-intensive.
 127
 128        # To enable system wide have in $GITWEB_CONFIG
 129        # $feature{'pickaxe'}{'default'} = [1];
 130        # To have project specific config enable override in $GITWEB_CONFIG
 131        # $feature{'pickaxe'}{'override'} = 1;
 132        # and in project config gitweb.pickaxe = 0|1;
 133        'pickaxe' => {
 134                'sub' => \&feature_pickaxe,
 135                'override' => 0,
 136                'default' => [1]},
 137
 138        # Make gitweb use an alternative format of the URLs which can be
 139        # more readable and natural-looking: project name is embedded
 140        # directly in the path and the query string contains other
 141        # auxiliary information. All gitweb installations recognize
 142        # URL in either format; this configures in which formats gitweb
 143        # generates links.
 144
 145        # To enable system wide have in $GITWEB_CONFIG
 146        # $feature{'pathinfo'}{'default'} = [1];
 147        # Project specific override is not supported.
 148
 149        # Note that you will need to change the default location of CSS,
 150        # favicon, logo and possibly other files to an absolute URL. Also,
 151        # if gitweb.cgi serves as your indexfile, you will need to force
 152        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 153        'pathinfo' => {
 154                'override' => 0,
 155                'default' => [0]},
 156);
 157
 158sub gitweb_check_feature {
 159        my ($name) = @_;
 160        return unless exists $feature{$name};
 161        my ($sub, $override, @defaults) = (
 162                $feature{$name}{'sub'},
 163                $feature{$name}{'override'},
 164                @{$feature{$name}{'default'}});
 165        if (!$override) { return @defaults; }
 166        if (!defined $sub) {
 167                warn "feature $name is not overrideable";
 168                return @defaults;
 169        }
 170        return $sub->(@defaults);
 171}
 172
 173sub feature_blame {
 174        my ($val) = git_get_project_config('blame', '--bool');
 175
 176        if ($val eq 'true') {
 177                return 1;
 178        } elsif ($val eq 'false') {
 179                return 0;
 180        }
 181
 182        return $_[0];
 183}
 184
 185sub feature_snapshot {
 186        my ($ctype, $suffix, $command) = @_;
 187
 188        my ($val) = git_get_project_config('snapshot');
 189
 190        if ($val eq 'gzip') {
 191                return ('x-gzip', 'gz', 'gzip');
 192        } elsif ($val eq 'bzip2') {
 193                return ('x-bzip2', 'bz2', 'bzip2');
 194        } elsif ($val eq 'none') {
 195                return ();
 196        }
 197
 198        return ($ctype, $suffix, $command);
 199}
 200
 201sub gitweb_have_snapshot {
 202        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 203        my $have_snapshot = (defined $ctype && defined $suffix);
 204
 205        return $have_snapshot;
 206}
 207
 208sub feature_pickaxe {
 209        my ($val) = git_get_project_config('pickaxe', '--bool');
 210
 211        if ($val eq 'true') {
 212                return (1);
 213        } elsif ($val eq 'false') {
 214                return (0);
 215        }
 216
 217        return ($_[0]);
 218}
 219
 220# rename detection options for git-diff and git-diff-tree
 221# - default is '-M', with the cost proportional to
 222#   (number of removed files) * (number of new files).
 223# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 224#   (number of changed files + number of removed files) * (number of new files)
 225# - even more costly is '-C', '--find-copies-harder' with cost
 226#   (number of files in the original tree) * (number of new files)
 227# - one might want to include '-B' option, e.g. '-B', '-M'
 228our @diff_opts = ('-M'); # taken from git_commit
 229
 230our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 231do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 232
 233# version of the core git binary
 234our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 235
 236$projects_list ||= $projectroot;
 237
 238# ======================================================================
 239# input validation and dispatch
 240our $action = $cgi->param('a');
 241if (defined $action) {
 242        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 243                die_error(undef, "Invalid action parameter");
 244        }
 245}
 246
 247# parameters which are pathnames
 248our $project = $cgi->param('p');
 249if (defined $project) {
 250        if (!validate_pathname($project) ||
 251            !(-d "$projectroot/$project") ||
 252            !(-e "$projectroot/$project/HEAD") ||
 253            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 254            ($strict_export && !project_in_list($project))) {
 255                undef $project;
 256                die_error(undef, "No such project");
 257        }
 258}
 259
 260our $file_name = $cgi->param('f');
 261if (defined $file_name) {
 262        if (!validate_pathname($file_name)) {
 263                die_error(undef, "Invalid file parameter");
 264        }
 265}
 266
 267our $file_parent = $cgi->param('fp');
 268if (defined $file_parent) {
 269        if (!validate_pathname($file_parent)) {
 270                die_error(undef, "Invalid file parent parameter");
 271        }
 272}
 273
 274# parameters which are refnames
 275our $hash = $cgi->param('h');
 276if (defined $hash) {
 277        if (!validate_refname($hash)) {
 278                die_error(undef, "Invalid hash parameter");
 279        }
 280}
 281
 282our $hash_parent = $cgi->param('hp');
 283if (defined $hash_parent) {
 284        if (!validate_refname($hash_parent)) {
 285                die_error(undef, "Invalid hash parent parameter");
 286        }
 287}
 288
 289our $hash_base = $cgi->param('hb');
 290if (defined $hash_base) {
 291        if (!validate_refname($hash_base)) {
 292                die_error(undef, "Invalid hash base parameter");
 293        }
 294}
 295
 296our $hash_parent_base = $cgi->param('hpb');
 297if (defined $hash_parent_base) {
 298        if (!validate_refname($hash_parent_base)) {
 299                die_error(undef, "Invalid hash parent base parameter");
 300        }
 301}
 302
 303# other parameters
 304our $page = $cgi->param('pg');
 305if (defined $page) {
 306        if ($page =~ m/[^0-9]/) {
 307                die_error(undef, "Invalid page parameter");
 308        }
 309}
 310
 311our $searchtext = $cgi->param('s');
 312if (defined $searchtext) {
 313        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 314                die_error(undef, "Invalid search parameter");
 315        }
 316        $searchtext = quotemeta $searchtext;
 317}
 318
 319# now read PATH_INFO and use it as alternative to parameters
 320sub evaluate_path_info {
 321        return if defined $project;
 322        my $path_info = $ENV{"PATH_INFO"};
 323        return if !$path_info;
 324        $path_info =~ s,^/+,,;
 325        return if !$path_info;
 326        # find which part of PATH_INFO is project
 327        $project = $path_info;
 328        $project =~ s,/+$,,;
 329        while ($project && !-e "$projectroot/$project/HEAD") {
 330                $project =~ s,/*[^/]*$,,;
 331        }
 332        # validate project
 333        $project = validate_pathname($project);
 334        if (!$project ||
 335            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 336            ($strict_export && !project_in_list($project))) {
 337                undef $project;
 338                return;
 339        }
 340        # do not change any parameters if an action is given using the query string
 341        return if $action;
 342        $path_info =~ s,^$project/*,,;
 343        my ($refname, $pathname) = split(/:/, $path_info, 2);
 344        if (defined $pathname) {
 345                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 346                # we could use git_get_type(branch:pathname), but it needs $git_dir
 347                $pathname =~ s,^/+,,;
 348                if (!$pathname || substr($pathname, -1) eq "/") {
 349                        $action  ||= "tree";
 350                        $pathname =~ s,/$,,;
 351                } else {
 352                        $action  ||= "blob_plain";
 353                }
 354                $hash_base ||= validate_refname($refname);
 355                $file_name ||= validate_pathname($pathname);
 356        } elsif (defined $refname) {
 357                # we got "project.git/branch"
 358                $action ||= "shortlog";
 359                $hash   ||= validate_refname($refname);
 360        }
 361}
 362evaluate_path_info();
 363
 364# path to the current git repository
 365our $git_dir;
 366$git_dir = "$projectroot/$project" if $project;
 367
 368# dispatch
 369my %actions = (
 370        "blame" => \&git_blame2,
 371        "blobdiff" => \&git_blobdiff,
 372        "blobdiff_plain" => \&git_blobdiff_plain,
 373        "blob" => \&git_blob,
 374        "blob_plain" => \&git_blob_plain,
 375        "commitdiff" => \&git_commitdiff,
 376        "commitdiff_plain" => \&git_commitdiff_plain,
 377        "commit" => \&git_commit,
 378        "heads" => \&git_heads,
 379        "history" => \&git_history,
 380        "log" => \&git_log,
 381        "rss" => \&git_rss,
 382        "search" => \&git_search,
 383        "shortlog" => \&git_shortlog,
 384        "summary" => \&git_summary,
 385        "tag" => \&git_tag,
 386        "tags" => \&git_tags,
 387        "tree" => \&git_tree,
 388        "snapshot" => \&git_snapshot,
 389        # those below don't need $project
 390        "opml" => \&git_opml,
 391        "project_list" => \&git_project_list,
 392        "project_index" => \&git_project_index,
 393);
 394
 395if (defined $project) {
 396        $action ||= 'summary';
 397} else {
 398        $action ||= 'project_list';
 399}
 400if (!defined($actions{$action})) {
 401        die_error(undef, "Unknown action");
 402}
 403if ($action !~ m/^(opml|project_list|project_index)$/ &&
 404    !$project) {
 405        die_error(undef, "Project needed");
 406}
 407$actions{$action}->();
 408exit;
 409
 410## ======================================================================
 411## action links
 412
 413sub href(%) {
 414        my %params = @_;
 415        my $href = $my_uri;
 416
 417        # XXX: Warning: If you touch this, check the search form for updating,
 418        # too.
 419
 420        my @mapping = (
 421                project => "p",
 422                action => "a",
 423                file_name => "f",
 424                file_parent => "fp",
 425                hash => "h",
 426                hash_parent => "hp",
 427                hash_base => "hb",
 428                hash_parent_base => "hpb",
 429                page => "pg",
 430                order => "o",
 431                searchtext => "s",
 432        );
 433        my %mapping = @mapping;
 434
 435        $params{'project'} = $project unless exists $params{'project'};
 436
 437        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 438        if ($use_pathinfo) {
 439                # use PATH_INFO for project name
 440                $href .= "/$params{'project'}" if defined $params{'project'};
 441                delete $params{'project'};
 442
 443                # Summary just uses the project path URL
 444                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 445                        delete $params{'action'};
 446                }
 447        }
 448
 449        # now encode the parameters explicitly
 450        my @result = ();
 451        for (my $i = 0; $i < @mapping; $i += 2) {
 452                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 453                if (defined $params{$name}) {
 454                        push @result, $symbol . "=" . esc_param($params{$name});
 455                }
 456        }
 457        $href .= "?" . join(';', @result) if scalar @result;
 458
 459        return $href;
 460}
 461
 462
 463## ======================================================================
 464## validation, quoting/unquoting and escaping
 465
 466sub validate_pathname {
 467        my $input = shift || return undef;
 468
 469        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 470        # at the beginning, at the end, and between slashes.
 471        # also this catches doubled slashes
 472        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 473                return undef;
 474        }
 475        # no null characters
 476        if ($input =~ m!\0!) {
 477                return undef;
 478        }
 479        return $input;
 480}
 481
 482sub validate_refname {
 483        my $input = shift || return undef;
 484
 485        # textual hashes are O.K.
 486        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 487                return $input;
 488        }
 489        # it must be correct pathname
 490        $input = validate_pathname($input)
 491                or return undef;
 492        # restrictions on ref name according to git-check-ref-format
 493        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 494                return undef;
 495        }
 496        return $input;
 497}
 498
 499# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 500sub to_utf8 {
 501        my $str = shift;
 502        return decode("utf8", $str, Encode::FB_DEFAULT);
 503}
 504
 505# quote unsafe chars, but keep the slash, even when it's not
 506# correct, but quoted slashes look too horrible in bookmarks
 507sub esc_param {
 508        my $str = shift;
 509        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 510        $str =~ s/\+/%2B/g;
 511        $str =~ s/ /\+/g;
 512        return $str;
 513}
 514
 515# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 516sub esc_url {
 517        my $str = shift;
 518        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 519        $str =~ s/\+/%2B/g;
 520        $str =~ s/ /\+/g;
 521        return $str;
 522}
 523
 524# replace invalid utf8 character with SUBSTITUTION sequence
 525sub esc_html {
 526        my $str = shift;
 527        $str = to_utf8($str);
 528        $str = escapeHTML($str);
 529        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 530        $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 531        return $str;
 532}
 533
 534# git may return quoted and escaped filenames
 535sub unquote {
 536        my $str = shift;
 537        if ($str =~ m/^"(.*)"$/) {
 538                $str = $1;
 539                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 540        }
 541        return $str;
 542}
 543
 544# escape tabs (convert tabs to spaces)
 545sub untabify {
 546        my $line = shift;
 547
 548        while ((my $pos = index($line, "\t")) != -1) {
 549                if (my $count = (8 - ($pos % 8))) {
 550                        my $spaces = ' ' x $count;
 551                        $line =~ s/\t/$spaces/;
 552                }
 553        }
 554
 555        return $line;
 556}
 557
 558sub project_in_list {
 559        my $project = shift;
 560        my @list = git_get_projects_list();
 561        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 562}
 563
 564## ----------------------------------------------------------------------
 565## HTML aware string manipulation
 566
 567sub chop_str {
 568        my $str = shift;
 569        my $len = shift;
 570        my $add_len = shift || 10;
 571
 572        # allow only $len chars, but don't cut a word if it would fit in $add_len
 573        # if it doesn't fit, cut it if it's still longer than the dots we would add
 574        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 575        my $body = $1;
 576        my $tail = $2;
 577        if (length($tail) > 4) {
 578                $tail = " ...";
 579                $body =~ s/&[^;]*$//; # remove chopped character entities
 580        }
 581        return "$body$tail";
 582}
 583
 584## ----------------------------------------------------------------------
 585## functions returning short strings
 586
 587# CSS class for given age value (in seconds)
 588sub age_class {
 589        my $age = shift;
 590
 591        if ($age < 60*60*2) {
 592                return "age0";
 593        } elsif ($age < 60*60*24*2) {
 594                return "age1";
 595        } else {
 596                return "age2";
 597        }
 598}
 599
 600# convert age in seconds to "nn units ago" string
 601sub age_string {
 602        my $age = shift;
 603        my $age_str;
 604
 605        if ($age > 60*60*24*365*2) {
 606                $age_str = (int $age/60/60/24/365);
 607                $age_str .= " years ago";
 608        } elsif ($age > 60*60*24*(365/12)*2) {
 609                $age_str = int $age/60/60/24/(365/12);
 610                $age_str .= " months ago";
 611        } elsif ($age > 60*60*24*7*2) {
 612                $age_str = int $age/60/60/24/7;
 613                $age_str .= " weeks ago";
 614        } elsif ($age > 60*60*24*2) {
 615                $age_str = int $age/60/60/24;
 616                $age_str .= " days ago";
 617        } elsif ($age > 60*60*2) {
 618                $age_str = int $age/60/60;
 619                $age_str .= " hours ago";
 620        } elsif ($age > 60*2) {
 621                $age_str = int $age/60;
 622                $age_str .= " min ago";
 623        } elsif ($age > 2) {
 624                $age_str = int $age;
 625                $age_str .= " sec ago";
 626        } else {
 627                $age_str .= " right now";
 628        }
 629        return $age_str;
 630}
 631
 632# convert file mode in octal to symbolic file mode string
 633sub mode_str {
 634        my $mode = oct shift;
 635
 636        if (S_ISDIR($mode & S_IFMT)) {
 637                return 'drwxr-xr-x';
 638        } elsif (S_ISLNK($mode)) {
 639                return 'lrwxrwxrwx';
 640        } elsif (S_ISREG($mode)) {
 641                # git cares only about the executable bit
 642                if ($mode & S_IXUSR) {
 643                        return '-rwxr-xr-x';
 644                } else {
 645                        return '-rw-r--r--';
 646                };
 647        } else {
 648                return '----------';
 649        }
 650}
 651
 652# convert file mode in octal to file type string
 653sub file_type {
 654        my $mode = shift;
 655
 656        if ($mode !~ m/^[0-7]+$/) {
 657                return $mode;
 658        } else {
 659                $mode = oct $mode;
 660        }
 661
 662        if (S_ISDIR($mode & S_IFMT)) {
 663                return "directory";
 664        } elsif (S_ISLNK($mode)) {
 665                return "symlink";
 666        } elsif (S_ISREG($mode)) {
 667                return "file";
 668        } else {
 669                return "unknown";
 670        }
 671}
 672
 673## ----------------------------------------------------------------------
 674## functions returning short HTML fragments, or transforming HTML fragments
 675## which don't beling to other sections
 676
 677# format line of commit message or tag comment
 678sub format_log_line_html {
 679        my $line = shift;
 680
 681        $line = esc_html($line);
 682        $line =~ s/ /&nbsp;/g;
 683        if ($line =~ m/([0-9a-fA-F]{40})/) {
 684                my $hash_text = $1;
 685                if (git_get_type($hash_text) eq "commit") {
 686                        my $link =
 687                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 688                                        -class => "text"}, $hash_text);
 689                        $line =~ s/$hash_text/$link/;
 690                }
 691        }
 692        return $line;
 693}
 694
 695# format marker of refs pointing to given object
 696sub format_ref_marker {
 697        my ($refs, $id) = @_;
 698        my $markers = '';
 699
 700        if (defined $refs->{$id}) {
 701                foreach my $ref (@{$refs->{$id}}) {
 702                        my ($type, $name) = qw();
 703                        # e.g. tags/v2.6.11 or heads/next
 704                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 705                                $type = $1;
 706                                $name = $2;
 707                        } else {
 708                                $type = "ref";
 709                                $name = $ref;
 710                        }
 711
 712                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 713                }
 714        }
 715
 716        if ($markers) {
 717                return ' <span class="refs">'. $markers . '</span>';
 718        } else {
 719                return "";
 720        }
 721}
 722
 723# format, perhaps shortened and with markers, title line
 724sub format_subject_html {
 725        my ($long, $short, $href, $extra) = @_;
 726        $extra = '' unless defined($extra);
 727
 728        if (length($short) < length($long)) {
 729                return $cgi->a({-href => $href, -class => "list subject",
 730                                -title => to_utf8($long)},
 731                       esc_html($short) . $extra);
 732        } else {
 733                return $cgi->a({-href => $href, -class => "list subject"},
 734                       esc_html($long)  . $extra);
 735        }
 736}
 737
 738sub format_diff_line {
 739        my $line = shift;
 740        my $char = substr($line, 0, 1);
 741        my $diff_class = "";
 742
 743        chomp $line;
 744
 745        if ($char eq '+') {
 746                $diff_class = " add";
 747        } elsif ($char eq "-") {
 748                $diff_class = " rem";
 749        } elsif ($char eq "@") {
 750                $diff_class = " chunk_header";
 751        } elsif ($char eq "\\") {
 752                $diff_class = " incomplete";
 753        }
 754        $line = untabify($line);
 755        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 756}
 757
 758## ----------------------------------------------------------------------
 759## git utility subroutines, invoking git commands
 760
 761# returns path to the core git executable and the --git-dir parameter as list
 762sub git_cmd {
 763        return $GIT, '--git-dir='.$git_dir;
 764}
 765
 766# returns path to the core git executable and the --git-dir parameter as string
 767sub git_cmd_str {
 768        return join(' ', git_cmd());
 769}
 770
 771# get HEAD ref of given project as hash
 772sub git_get_head_hash {
 773        my $project = shift;
 774        my $o_git_dir = $git_dir;
 775        my $retval = undef;
 776        $git_dir = "$projectroot/$project";
 777        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 778                my $head = <$fd>;
 779                close $fd;
 780                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 781                        $retval = $1;
 782                }
 783        }
 784        if (defined $o_git_dir) {
 785                $git_dir = $o_git_dir;
 786        }
 787        return $retval;
 788}
 789
 790# get type of given object
 791sub git_get_type {
 792        my $hash = shift;
 793
 794        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 795        my $type = <$fd>;
 796        close $fd or return;
 797        chomp $type;
 798        return $type;
 799}
 800
 801sub git_get_project_config {
 802        my ($key, $type) = @_;
 803
 804        return unless ($key);
 805        $key =~ s/^gitweb\.//;
 806        return if ($key =~ m/\W/);
 807
 808        my @x = (git_cmd(), 'repo-config');
 809        if (defined $type) { push @x, $type; }
 810        push @x, "--get";
 811        push @x, "gitweb.$key";
 812        my $val = qx(@x);
 813        chomp $val;
 814        return ($val);
 815}
 816
 817# get hash of given path at given ref
 818sub git_get_hash_by_path {
 819        my $base = shift;
 820        my $path = shift || return undef;
 821        my $type = shift;
 822
 823        $path =~ s,/+$,,;
 824
 825        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 826                or die_error(undef, "Open git-ls-tree failed");
 827        my $line = <$fd>;
 828        close $fd or return undef;
 829
 830        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 831        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 832        if (defined $type && $type ne $2) {
 833                # type doesn't match
 834                return undef;
 835        }
 836        return $3;
 837}
 838
 839## ......................................................................
 840## git utility functions, directly accessing git repository
 841
 842sub git_get_project_description {
 843        my $path = shift;
 844
 845        open my $fd, "$projectroot/$path/description" or return undef;
 846        my $descr = <$fd>;
 847        close $fd;
 848        chomp $descr;
 849        return $descr;
 850}
 851
 852sub git_get_project_url_list {
 853        my $path = shift;
 854
 855        open my $fd, "$projectroot/$path/cloneurl" or return;
 856        my @git_project_url_list = map { chomp; $_ } <$fd>;
 857        close $fd;
 858
 859        return wantarray ? @git_project_url_list : \@git_project_url_list;
 860}
 861
 862sub git_get_projects_list {
 863        my @list;
 864
 865        if (-d $projects_list) {
 866                # search in directory
 867                my $dir = $projects_list;
 868                my $pfxlen = length("$dir");
 869
 870                File::Find::find({
 871                        follow_fast => 1, # follow symbolic links
 872                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 873                        wanted => sub {
 874                                # skip project-list toplevel, if we get it.
 875                                return if (m!^[/.]$!);
 876                                # only directories can be git repositories
 877                                return unless (-d $_);
 878
 879                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 880                                # we check related file in $projectroot
 881                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 882                                    -e "$projectroot/$subdir/$export_ok")) {
 883                                        push @list, { path => $subdir };
 884                                        $File::Find::prune = 1;
 885                                }
 886                        },
 887                }, "$dir");
 888
 889        } elsif (-f $projects_list) {
 890                # read from file(url-encoded):
 891                # 'git%2Fgit.git Linus+Torvalds'
 892                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 893                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 894                open my ($fd), $projects_list or return;
 895                while (my $line = <$fd>) {
 896                        chomp $line;
 897                        my ($path, $owner) = split ' ', $line;
 898                        $path = unescape($path);
 899                        $owner = unescape($owner);
 900                        if (!defined $path) {
 901                                next;
 902                        }
 903                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 904                            -e "$projectroot/$path/$export_ok")) {
 905                                my $pr = {
 906                                        path => $path,
 907                                        owner => to_utf8($owner),
 908                                };
 909                                push @list, $pr
 910                        }
 911                }
 912                close $fd;
 913        }
 914        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 915        return @list;
 916}
 917
 918sub git_get_project_owner {
 919        my $project = shift;
 920        my $owner;
 921
 922        return undef unless $project;
 923
 924        # read from file (url-encoded):
 925        # 'git%2Fgit.git Linus+Torvalds'
 926        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 927        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 928        if (-f $projects_list) {
 929                open (my $fd , $projects_list);
 930                while (my $line = <$fd>) {
 931                        chomp $line;
 932                        my ($pr, $ow) = split ' ', $line;
 933                        $pr = unescape($pr);
 934                        $ow = unescape($ow);
 935                        if ($pr eq $project) {
 936                                $owner = to_utf8($ow);
 937                                last;
 938                        }
 939                }
 940                close $fd;
 941        }
 942        if (!defined $owner) {
 943                $owner = get_file_owner("$projectroot/$project");
 944        }
 945
 946        return $owner;
 947}
 948
 949sub git_get_references {
 950        my $type = shift || "";
 951        my %refs;
 952        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 953        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 954        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 955                or return;
 956
 957        while (my $line = <$fd>) {
 958                chomp $line;
 959                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 960                        if (defined $refs{$1}) {
 961                                push @{$refs{$1}}, $2;
 962                        } else {
 963                                $refs{$1} = [ $2 ];
 964                        }
 965                }
 966        }
 967        close $fd or return;
 968        return \%refs;
 969}
 970
 971sub git_get_rev_name_tags {
 972        my $hash = shift || return undef;
 973
 974        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 975                or return;
 976        my $name_rev = <$fd>;
 977        close $fd;
 978
 979        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 980                return $1;
 981        } else {
 982                # catches also '$hash undefined' output
 983                return undef;
 984        }
 985}
 986
 987## ----------------------------------------------------------------------
 988## parse to hash functions
 989
 990sub parse_date {
 991        my $epoch = shift;
 992        my $tz = shift || "-0000";
 993
 994        my %date;
 995        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 996        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 997        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 998        $date{'hour'} = $hour;
 999        $date{'minute'} = $min;
1000        $date{'mday'} = $mday;
1001        $date{'day'} = $days[$wday];
1002        $date{'month'} = $months[$mon];
1003        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1004                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1005        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1006                             $mday, $months[$mon], $hour ,$min;
1007
1008        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1009        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1010        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1011        $date{'hour_local'} = $hour;
1012        $date{'minute_local'} = $min;
1013        $date{'tz_local'} = $tz;
1014        return %date;
1015}
1016
1017sub parse_tag {
1018        my $tag_id = shift;
1019        my %tag;
1020        my @comment;
1021
1022        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1023        $tag{'id'} = $tag_id;
1024        while (my $line = <$fd>) {
1025                chomp $line;
1026                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1027                        $tag{'object'} = $1;
1028                } elsif ($line =~ m/^type (.+)$/) {
1029                        $tag{'type'} = $1;
1030                } elsif ($line =~ m/^tag (.+)$/) {
1031                        $tag{'name'} = $1;
1032                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1033                        $tag{'author'} = $1;
1034                        $tag{'epoch'} = $2;
1035                        $tag{'tz'} = $3;
1036                } elsif ($line =~ m/--BEGIN/) {
1037                        push @comment, $line;
1038                        last;
1039                } elsif ($line eq "") {
1040                        last;
1041                }
1042        }
1043        push @comment, <$fd>;
1044        $tag{'comment'} = \@comment;
1045        close $fd or return;
1046        if (!defined $tag{'name'}) {
1047                return
1048        };
1049        return %tag
1050}
1051
1052sub parse_commit {
1053        my $commit_id = shift;
1054        my $commit_text = shift;
1055
1056        my @commit_lines;
1057        my %co;
1058
1059        if (defined $commit_text) {
1060                @commit_lines = @$commit_text;
1061        } else {
1062                local $/ = "\0";
1063                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1064                        or return;
1065                @commit_lines = split '\n', <$fd>;
1066                close $fd or return;
1067                pop @commit_lines;
1068        }
1069        my $header = shift @commit_lines;
1070        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1071                return;
1072        }
1073        ($co{'id'}, my @parents) = split ' ', $header;
1074        $co{'parents'} = \@parents;
1075        $co{'parent'} = $parents[0];
1076        while (my $line = shift @commit_lines) {
1077                last if $line eq "\n";
1078                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1079                        $co{'tree'} = $1;
1080                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1081                        $co{'author'} = $1;
1082                        $co{'author_epoch'} = $2;
1083                        $co{'author_tz'} = $3;
1084                        if ($co{'author'} =~ m/^([^<]+) </) {
1085                                $co{'author_name'} = $1;
1086                        } else {
1087                                $co{'author_name'} = $co{'author'};
1088                        }
1089                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1090                        $co{'committer'} = $1;
1091                        $co{'committer_epoch'} = $2;
1092                        $co{'committer_tz'} = $3;
1093                        $co{'committer_name'} = $co{'committer'};
1094                        $co{'committer_name'} =~ s/ <.*//;
1095                }
1096        }
1097        if (!defined $co{'tree'}) {
1098                return;
1099        };
1100
1101        foreach my $title (@commit_lines) {
1102                $title =~ s/^    //;
1103                if ($title ne "") {
1104                        $co{'title'} = chop_str($title, 80, 5);
1105                        # remove leading stuff of merges to make the interesting part visible
1106                        if (length($title) > 50) {
1107                                $title =~ s/^Automatic //;
1108                                $title =~ s/^merge (of|with) /Merge ... /i;
1109                                if (length($title) > 50) {
1110                                        $title =~ s/(http|rsync):\/\///;
1111                                }
1112                                if (length($title) > 50) {
1113                                        $title =~ s/(master|www|rsync)\.//;
1114                                }
1115                                if (length($title) > 50) {
1116                                        $title =~ s/kernel.org:?//;
1117                                }
1118                                if (length($title) > 50) {
1119                                        $title =~ s/\/pub\/scm//;
1120                                }
1121                        }
1122                        $co{'title_short'} = chop_str($title, 50, 5);
1123                        last;
1124                }
1125        }
1126        if ($co{'title'} eq "") {
1127                $co{'title'} = $co{'title_short'} = '(no commit message)';
1128        }
1129        # remove added spaces
1130        foreach my $line (@commit_lines) {
1131                $line =~ s/^    //;
1132        }
1133        $co{'comment'} = \@commit_lines;
1134
1135        my $age = time - $co{'committer_epoch'};
1136        $co{'age'} = $age;
1137        $co{'age_string'} = age_string($age);
1138        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1139        if ($age > 60*60*24*7*2) {
1140                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1141                $co{'age_string_age'} = $co{'age_string'};
1142        } else {
1143                $co{'age_string_date'} = $co{'age_string'};
1144                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1145        }
1146        return %co;
1147}
1148
1149# parse ref from ref_file, given by ref_id, with given type
1150sub parse_ref {
1151        my $ref_file = shift;
1152        my $ref_id = shift;
1153        my $type = shift || git_get_type($ref_id);
1154        my %ref_item;
1155
1156        $ref_item{'type'} = $type;
1157        $ref_item{'id'} = $ref_id;
1158        $ref_item{'epoch'} = 0;
1159        $ref_item{'age'} = "unknown";
1160        if ($type eq "tag") {
1161                my %tag = parse_tag($ref_id);
1162                $ref_item{'comment'} = $tag{'comment'};
1163                if ($tag{'type'} eq "commit") {
1164                        my %co = parse_commit($tag{'object'});
1165                        $ref_item{'epoch'} = $co{'committer_epoch'};
1166                        $ref_item{'age'} = $co{'age_string'};
1167                } elsif (defined($tag{'epoch'})) {
1168                        my $age = time - $tag{'epoch'};
1169                        $ref_item{'epoch'} = $tag{'epoch'};
1170                        $ref_item{'age'} = age_string($age);
1171                }
1172                $ref_item{'reftype'} = $tag{'type'};
1173                $ref_item{'name'} = $tag{'name'};
1174                $ref_item{'refid'} = $tag{'object'};
1175        } elsif ($type eq "commit"){
1176                my %co = parse_commit($ref_id);
1177                $ref_item{'reftype'} = "commit";
1178                $ref_item{'name'} = $ref_file;
1179                $ref_item{'title'} = $co{'title'};
1180                $ref_item{'refid'} = $ref_id;
1181                $ref_item{'epoch'} = $co{'committer_epoch'};
1182                $ref_item{'age'} = $co{'age_string'};
1183        } else {
1184                $ref_item{'reftype'} = $type;
1185                $ref_item{'name'} = $ref_file;
1186                $ref_item{'refid'} = $ref_id;
1187        }
1188
1189        return %ref_item;
1190}
1191
1192# parse line of git-diff-tree "raw" output
1193sub parse_difftree_raw_line {
1194        my $line = shift;
1195        my %res;
1196
1197        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1198        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1199        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1200                $res{'from_mode'} = $1;
1201                $res{'to_mode'} = $2;
1202                $res{'from_id'} = $3;
1203                $res{'to_id'} = $4;
1204                $res{'status'} = $5;
1205                $res{'similarity'} = $6;
1206                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1207                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1208                } else {
1209                        $res{'file'} = unquote($7);
1210                }
1211        }
1212        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1213        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1214                $res{'commit'} = $1;
1215        }
1216
1217        return wantarray ? %res : \%res;
1218}
1219
1220# parse line of git-ls-tree output
1221sub parse_ls_tree_line ($;%) {
1222        my $line = shift;
1223        my %opts = @_;
1224        my %res;
1225
1226        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1227        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1228
1229        $res{'mode'} = $1;
1230        $res{'type'} = $2;
1231        $res{'hash'} = $3;
1232        if ($opts{'-z'}) {
1233                $res{'name'} = $4;
1234        } else {
1235                $res{'name'} = unquote($4);
1236        }
1237
1238        return wantarray ? %res : \%res;
1239}
1240
1241## ......................................................................
1242## parse to array of hashes functions
1243
1244sub git_get_refs_list {
1245        my $type = shift || "";
1246        my %refs;
1247        my @reflist;
1248
1249        my @refs;
1250        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1251                or return;
1252        while (my $line = <$fd>) {
1253                chomp $line;
1254                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1255                        if (defined $refs{$1}) {
1256                                push @{$refs{$1}}, $2;
1257                        } else {
1258                                $refs{$1} = [ $2 ];
1259                        }
1260
1261                        if (! $4) { # unpeeled, direct reference
1262                                push @refs, { hash => $1, name => $3 }; # without type
1263                        } elsif ($3 eq $refs[-1]{'name'}) {
1264                                # most likely a tag is followed by its peeled
1265                                # (deref) one, and when that happens we know the
1266                                # previous one was of type 'tag'.
1267                                $refs[-1]{'type'} = "tag";
1268                        }
1269                }
1270        }
1271        close $fd;
1272
1273        foreach my $ref (@refs) {
1274                my $ref_file = $ref->{'name'};
1275                my $ref_id   = $ref->{'hash'};
1276
1277                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1278                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1279
1280                push @reflist, \%ref_item;
1281        }
1282        # sort refs by age
1283        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1284        return (\@reflist, \%refs);
1285}
1286
1287## ----------------------------------------------------------------------
1288## filesystem-related functions
1289
1290sub get_file_owner {
1291        my $path = shift;
1292
1293        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1294        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1295        if (!defined $gcos) {
1296                return undef;
1297        }
1298        my $owner = $gcos;
1299        $owner =~ s/[,;].*$//;
1300        return to_utf8($owner);
1301}
1302
1303## ......................................................................
1304## mimetype related functions
1305
1306sub mimetype_guess_file {
1307        my $filename = shift;
1308        my $mimemap = shift;
1309        -r $mimemap or return undef;
1310
1311        my %mimemap;
1312        open(MIME, $mimemap) or return undef;
1313        while (<MIME>) {
1314                next if m/^#/; # skip comments
1315                my ($mime, $exts) = split(/\t+/);
1316                if (defined $exts) {
1317                        my @exts = split(/\s+/, $exts);
1318                        foreach my $ext (@exts) {
1319                                $mimemap{$ext} = $mime;
1320                        }
1321                }
1322        }
1323        close(MIME);
1324
1325        $filename =~ /\.([^.]*)$/;
1326        return $mimemap{$1};
1327}
1328
1329sub mimetype_guess {
1330        my $filename = shift;
1331        my $mime;
1332        $filename =~ /\./ or return undef;
1333
1334        if ($mimetypes_file) {
1335                my $file = $mimetypes_file;
1336                if ($file !~ m!^/!) { # if it is relative path
1337                        # it is relative to project
1338                        $file = "$projectroot/$project/$file";
1339                }
1340                $mime = mimetype_guess_file($filename, $file);
1341        }
1342        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1343        return $mime;
1344}
1345
1346sub blob_mimetype {
1347        my $fd = shift;
1348        my $filename = shift;
1349
1350        if ($filename) {
1351                my $mime = mimetype_guess($filename);
1352                $mime and return $mime;
1353        }
1354
1355        # just in case
1356        return $default_blob_plain_mimetype unless $fd;
1357
1358        if (-T $fd) {
1359                return 'text/plain' .
1360                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1361        } elsif (! $filename) {
1362                return 'application/octet-stream';
1363        } elsif ($filename =~ m/\.png$/i) {
1364                return 'image/png';
1365        } elsif ($filename =~ m/\.gif$/i) {
1366                return 'image/gif';
1367        } elsif ($filename =~ m/\.jpe?g$/i) {
1368                return 'image/jpeg';
1369        } else {
1370                return 'application/octet-stream';
1371        }
1372}
1373
1374## ======================================================================
1375## functions printing HTML: header, footer, error page
1376
1377sub git_header_html {
1378        my $status = shift || "200 OK";
1379        my $expires = shift;
1380
1381        my $title = "$site_name git";
1382        if (defined $project) {
1383                $title .= " - $project";
1384                if (defined $action) {
1385                        $title .= "/$action";
1386                        if (defined $file_name) {
1387                                $title .= " - " . esc_html($file_name);
1388                                if ($action eq "tree" && $file_name !~ m|/$|) {
1389                                        $title .= "/";
1390                                }
1391                        }
1392                }
1393        }
1394        my $content_type;
1395        # require explicit support from the UA if we are to send the page as
1396        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1397        # we have to do this because MSIE sometimes globs '*/*', pretending to
1398        # support xhtml+xml but choking when it gets what it asked for.
1399        if (defined $cgi->http('HTTP_ACCEPT') &&
1400            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1401            $cgi->Accept('application/xhtml+xml') != 0) {
1402                $content_type = 'application/xhtml+xml';
1403        } else {
1404                $content_type = 'text/html';
1405        }
1406        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1407                           -status=> $status, -expires => $expires);
1408        print <<EOF;
1409<?xml version="1.0" encoding="utf-8"?>
1410<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1411<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1412<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1413<!-- git core binaries version $git_version -->
1414<head>
1415<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1416<meta name="generator" content="gitweb/$version git/$git_version"/>
1417<meta name="robots" content="index, nofollow"/>
1418<title>$title</title>
1419<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1420EOF
1421        if (defined $project) {
1422                printf('<link rel="alternate" title="%s log" '.
1423                       'href="%s" type="application/rss+xml"/>'."\n",
1424                       esc_param($project), href(action=>"rss"));
1425        } else {
1426                printf('<link rel="alternate" title="%s projects list" '.
1427                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1428                       $site_name, href(project=>undef, action=>"project_index"));
1429                printf('<link rel="alternate" title="%s projects logs" '.
1430                       'href="%s" type="text/x-opml"/>'."\n",
1431                       $site_name, href(project=>undef, action=>"opml"));
1432        }
1433        if (defined $favicon) {
1434                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1435        }
1436
1437        print "</head>\n" .
1438              "<body>\n" .
1439              "<div class=\"page_header\">\n" .
1440              $cgi->a({-href => esc_url($logo_url),
1441                       -title => $logo_label},
1442                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1443        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1444        if (defined $project) {
1445                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1446                if (defined $action) {
1447                        print " / $action";
1448                }
1449                print "\n";
1450                if (!defined $searchtext) {
1451                        $searchtext = "";
1452                }
1453                my $search_hash;
1454                if (defined $hash_base) {
1455                        $search_hash = $hash_base;
1456                } elsif (defined $hash) {
1457                        $search_hash = $hash;
1458                } else {
1459                        $search_hash = "HEAD";
1460                }
1461                $cgi->param("a", "search");
1462                $cgi->param("h", $search_hash);
1463                $cgi->param("p", $project);
1464                print $cgi->startform(-method => "get", -action => $my_uri) .
1465                      "<div class=\"search\">\n" .
1466                      $cgi->hidden(-name => "p") . "\n" .
1467                      $cgi->hidden(-name => "a") . "\n" .
1468                      $cgi->hidden(-name => "h") . "\n" .
1469                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1470                      "</div>" .
1471                      $cgi->end_form() . "\n";
1472        }
1473        print "</div>\n";
1474}
1475
1476sub git_footer_html {
1477        print "<div class=\"page_footer\">\n";
1478        if (defined $project) {
1479                my $descr = git_get_project_description($project);
1480                if (defined $descr) {
1481                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1482                }
1483                print $cgi->a({-href => href(action=>"rss"),
1484                              -class => "rss_logo"}, "RSS") . "\n";
1485        } else {
1486                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1487                              -class => "rss_logo"}, "OPML") . " ";
1488                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1489                              -class => "rss_logo"}, "TXT") . "\n";
1490        }
1491        print "</div>\n" .
1492              "</body>\n" .
1493              "</html>";
1494}
1495
1496sub die_error {
1497        my $status = shift || "403 Forbidden";
1498        my $error = shift || "Malformed query, file missing or permission denied";
1499
1500        git_header_html($status);
1501        print <<EOF;
1502<div class="page_body">
1503<br /><br />
1504$status - $error
1505<br />
1506</div>
1507EOF
1508        git_footer_html();
1509        exit;
1510}
1511
1512## ----------------------------------------------------------------------
1513## functions printing or outputting HTML: navigation
1514
1515sub git_print_page_nav {
1516        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1517        $extra = '' if !defined $extra; # pager or formats
1518
1519        my @navs = qw(summary shortlog log commit commitdiff tree);
1520        if ($suppress) {
1521                @navs = grep { $_ ne $suppress } @navs;
1522        }
1523
1524        my %arg = map { $_ => {action=>$_} } @navs;
1525        if (defined $head) {
1526                for (qw(commit commitdiff)) {
1527                        $arg{$_}{hash} = $head;
1528                }
1529                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1530                        for (qw(shortlog log)) {
1531                                $arg{$_}{hash} = $head;
1532                        }
1533                }
1534        }
1535        $arg{tree}{hash} = $treehead if defined $treehead;
1536        $arg{tree}{hash_base} = $treebase if defined $treebase;
1537
1538        print "<div class=\"page_nav\">\n" .
1539                (join " | ",
1540                 map { $_ eq $current ?
1541                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1542                 } @navs);
1543        print "<br/>\n$extra<br/>\n" .
1544              "</div>\n";
1545}
1546
1547sub format_paging_nav {
1548        my ($action, $hash, $head, $page, $nrevs) = @_;
1549        my $paging_nav;
1550
1551
1552        if ($hash ne $head || $page) {
1553                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1554        } else {
1555                $paging_nav .= "HEAD";
1556        }
1557
1558        if ($page > 0) {
1559                $paging_nav .= " &sdot; " .
1560                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1561                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1562        } else {
1563                $paging_nav .= " &sdot; prev";
1564        }
1565
1566        if ($nrevs >= (100 * ($page+1)-1)) {
1567                $paging_nav .= " &sdot; " .
1568                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1569                                 -accesskey => "n", -title => "Alt-n"}, "next");
1570        } else {
1571                $paging_nav .= " &sdot; next";
1572        }
1573
1574        return $paging_nav;
1575}
1576
1577## ......................................................................
1578## functions printing or outputting HTML: div
1579
1580sub git_print_header_div {
1581        my ($action, $title, $hash, $hash_base) = @_;
1582        my %args = ();
1583
1584        $args{action} = $action;
1585        $args{hash} = $hash if $hash;
1586        $args{hash_base} = $hash_base if $hash_base;
1587
1588        print "<div class=\"header\">\n" .
1589              $cgi->a({-href => href(%args), -class => "title"},
1590              $title ? $title : $action) .
1591              "\n</div>\n";
1592}
1593
1594#sub git_print_authorship (\%) {
1595sub git_print_authorship {
1596        my $co = shift;
1597
1598        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1599        print "<div class=\"author_date\">" .
1600              esc_html($co->{'author_name'}) .
1601              " [$ad{'rfc2822'}";
1602        if ($ad{'hour_local'} < 6) {
1603                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1604                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1605        } else {
1606                printf(" (%02d:%02d %s)",
1607                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1608        }
1609        print "]</div>\n";
1610}
1611
1612sub git_print_page_path {
1613        my $name = shift;
1614        my $type = shift;
1615        my $hb = shift;
1616
1617
1618        print "<div class=\"page_path\">";
1619        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1620                      -title => 'tree root'}, "[$project]");
1621        print " / ";
1622        if (defined $name) {
1623                my @dirname = split '/', $name;
1624                my $basename = pop @dirname;
1625                my $fullname = '';
1626
1627                foreach my $dir (@dirname) {
1628                        $fullname .= ($fullname ? '/' : '') . $dir;
1629                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1630                                                     hash_base=>$hb),
1631                                      -title => $fullname}, esc_html($dir));
1632                        print " / ";
1633                }
1634                if (defined $type && $type eq 'blob') {
1635                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1636                                                     hash_base=>$hb),
1637                                      -title => $name}, esc_html($basename));
1638                } elsif (defined $type && $type eq 'tree') {
1639                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1640                                                     hash_base=>$hb),
1641                                      -title => $name}, esc_html($basename));
1642                        print " / ";
1643                } else {
1644                        print esc_html($basename);
1645                }
1646        }
1647        print "<br/></div>\n";
1648}
1649
1650# sub git_print_log (\@;%) {
1651sub git_print_log ($;%) {
1652        my $log = shift;
1653        my %opts = @_;
1654
1655        if ($opts{'-remove_title'}) {
1656                # remove title, i.e. first line of log
1657                shift @$log;
1658        }
1659        # remove leading empty lines
1660        while (defined $log->[0] && $log->[0] eq "") {
1661                shift @$log;
1662        }
1663
1664        # print log
1665        my $signoff = 0;
1666        my $empty = 0;
1667        foreach my $line (@$log) {
1668                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1669                        $signoff = 1;
1670                        $empty = 0;
1671                        if (! $opts{'-remove_signoff'}) {
1672                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1673                                next;
1674                        } else {
1675                                # remove signoff lines
1676                                next;
1677                        }
1678                } else {
1679                        $signoff = 0;
1680                }
1681
1682                # print only one empty line
1683                # do not print empty line after signoff
1684                if ($line eq "") {
1685                        next if ($empty || $signoff);
1686                        $empty = 1;
1687                } else {
1688                        $empty = 0;
1689                }
1690
1691                print format_log_line_html($line) . "<br/>\n";
1692        }
1693
1694        if ($opts{'-final_empty_line'}) {
1695                # end with single empty line
1696                print "<br/>\n" unless $empty;
1697        }
1698}
1699
1700sub git_print_simplified_log {
1701        my $log = shift;
1702        my $remove_title = shift;
1703
1704        git_print_log($log,
1705                -final_empty_line=> 1,
1706                -remove_title => $remove_title);
1707}
1708
1709# print tree entry (row of git_tree), but without encompassing <tr> element
1710sub git_print_tree_entry {
1711        my ($t, $basedir, $hash_base, $have_blame) = @_;
1712
1713        my %base_key = ();
1714        $base_key{hash_base} = $hash_base if defined $hash_base;
1715
1716        # The format of a table row is: mode list link.  Where mode is
1717        # the mode of the entry, list is the name of the entry, an href,
1718        # and link is the action links of the entry.
1719
1720        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1721        if ($t->{'type'} eq "blob") {
1722                print "<td class=\"list\">" .
1723                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1724                                               file_name=>"$basedir$t->{'name'}", %base_key),
1725                                -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1726                print "<td class=\"link\">";
1727                if ($have_blame) {
1728                        print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1729                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
1730                                            "blame");
1731                }
1732                if (defined $hash_base) {
1733                        if ($have_blame) {
1734                                print " | ";
1735                        }
1736                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1737                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1738                                      "history");
1739                }
1740                print " | " .
1741                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1742                                               file_name=>"$basedir$t->{'name'}")},
1743                                "raw");
1744                print "</td>\n";
1745
1746        } elsif ($t->{'type'} eq "tree") {
1747                print "<td class=\"list\">";
1748                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1749                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1750                              esc_html($t->{'name'}));
1751                print "</td>\n";
1752                print "<td class=\"link\">";
1753                if (defined $hash_base) {
1754                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1755                                                     file_name=>"$basedir$t->{'name'}")},
1756                                      "history");
1757                }
1758                print "</td>\n";
1759        }
1760}
1761
1762## ......................................................................
1763## functions printing large fragments of HTML
1764
1765sub git_difftree_body {
1766        my ($difftree, $hash, $parent) = @_;
1767
1768        print "<div class=\"list_head\">\n";
1769        if ($#{$difftree} > 10) {
1770                print(($#{$difftree} + 1) . " files changed:\n");
1771        }
1772        print "</div>\n";
1773
1774        print "<table class=\"diff_tree\">\n";
1775        my $alternate = 1;
1776        my $patchno = 0;
1777        foreach my $line (@{$difftree}) {
1778                my %diff = parse_difftree_raw_line($line);
1779
1780                if ($alternate) {
1781                        print "<tr class=\"dark\">\n";
1782                } else {
1783                        print "<tr class=\"light\">\n";
1784                }
1785                $alternate ^= 1;
1786
1787                my ($to_mode_oct, $to_mode_str, $to_file_type);
1788                my ($from_mode_oct, $from_mode_str, $from_file_type);
1789                if ($diff{'to_mode'} ne ('0' x 6)) {
1790                        $to_mode_oct = oct $diff{'to_mode'};
1791                        if (S_ISREG($to_mode_oct)) { # only for regular file
1792                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1793                        }
1794                        $to_file_type = file_type($diff{'to_mode'});
1795                }
1796                if ($diff{'from_mode'} ne ('0' x 6)) {
1797                        $from_mode_oct = oct $diff{'from_mode'};
1798                        if (S_ISREG($to_mode_oct)) { # only for regular file
1799                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1800                        }
1801                        $from_file_type = file_type($diff{'from_mode'});
1802                }
1803
1804                if ($diff{'status'} eq "A") { # created
1805                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1806                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1807                        $mode_chng   .= "]</span>";
1808                        print "<td>";
1809                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1810                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1811                                      -class => "list"}, esc_html($diff{'file'}));
1812                        print "</td>\n";
1813                        print "<td>$mode_chng</td>\n";
1814                        print "<td class=\"link\">";
1815                        if ($action eq 'commitdiff') {
1816                                # link to patch
1817                                $patchno++;
1818                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1819                        }
1820                        print "</td>\n";
1821
1822                } elsif ($diff{'status'} eq "D") { # deleted
1823                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1824                        print "<td>";
1825                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1826                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1827                                       -class => "list"}, esc_html($diff{'file'}));
1828                        print "</td>\n";
1829                        print "<td>$mode_chng</td>\n";
1830                        print "<td class=\"link\">";
1831                        if ($action eq 'commitdiff') {
1832                                # link to patch
1833                                $patchno++;
1834                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1835                                print " | ";
1836                        }
1837                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1838                                                     file_name=>$diff{'file'})},
1839                                      "blame") . " | ";
1840                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1841                                                     file_name=>$diff{'file'})},
1842                                      "history");
1843                        print "</td>\n";
1844
1845                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1846                        my $mode_chnge = "";
1847                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1848                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1849                                if ($from_file_type != $to_file_type) {
1850                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1851                                }
1852                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1853                                        if ($from_mode_str && $to_mode_str) {
1854                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1855                                        } elsif ($to_mode_str) {
1856                                                $mode_chnge .= " mode: $to_mode_str";
1857                                        }
1858                                }
1859                                $mode_chnge .= "]</span>\n";
1860                        }
1861                        print "<td>";
1862                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1863                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1864                                      -class => "list"}, esc_html($diff{'file'}));
1865                        print "</td>\n";
1866                        print "<td>$mode_chnge</td>\n";
1867                        print "<td class=\"link\">";
1868                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1869                                if ($action eq 'commitdiff') {
1870                                        # link to patch
1871                                        $patchno++;
1872                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1873                                } else {
1874                                        print $cgi->a({-href => href(action=>"blobdiff",
1875                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1876                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1877                                                                     file_name=>$diff{'file'})},
1878                                                      "diff");
1879                                }
1880                                print " | ";
1881                        }
1882                        print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1883                                                     file_name=>$diff{'file'})},
1884                                      "blame") . " | ";
1885                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1886                                                     file_name=>$diff{'file'})},
1887                                      "history");
1888                        print "</td>\n";
1889
1890                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1891                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1892                        my $nstatus = $status_name{$diff{'status'}};
1893                        my $mode_chng = "";
1894                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1895                                # mode also for directories, so we cannot use $to_mode_str
1896                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1897                        }
1898                        print "<td>" .
1899                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1900                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1901                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1902                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1903                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1904                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1905                                      -class => "list"}, esc_html($diff{'from_file'})) .
1906                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1907                              "<td class=\"link\">";
1908                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1909                                if ($action eq 'commitdiff') {
1910                                        # link to patch
1911                                        $patchno++;
1912                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1913                                } else {
1914                                        print $cgi->a({-href => href(action=>"blobdiff",
1915                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1916                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1917                                                                     file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1918                                                      "diff");
1919                                }
1920                                print " | ";
1921                        }
1922                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1923                                                     file_name=>$diff{'from_file'})},
1924                                      "blame") . " | ";
1925                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1926                                                    file_name=>$diff{'from_file'})},
1927                                      "history");
1928                        print "</td>\n";
1929
1930                } # we should not encounter Unmerged (U) or Unknown (X) status
1931                print "</tr>\n";
1932        }
1933        print "</table>\n";
1934}
1935
1936sub git_patchset_body {
1937        my ($fd, $difftree, $hash, $hash_parent) = @_;
1938
1939        my $patch_idx = 0;
1940        my $in_header = 0;
1941        my $patch_found = 0;
1942        my $diffinfo;
1943
1944        print "<div class=\"patchset\">\n";
1945
1946        LINE:
1947        while (my $patch_line = <$fd>) {
1948                chomp $patch_line;
1949
1950                if ($patch_line =~ m/^diff /) { # "git diff" header
1951                        # beginning of patch (in patchset)
1952                        if ($patch_found) {
1953                                # close previous patch
1954                                print "</div>\n"; # class="patch"
1955                        } else {
1956                                # first patch in patchset
1957                                $patch_found = 1;
1958                        }
1959                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1960
1961                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1962                                $diffinfo = $difftree->[$patch_idx];
1963                        } else {
1964                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1965                        }
1966                        $patch_idx++;
1967
1968                        # for now, no extended header, hence we skip empty patches
1969                        # companion to  next LINE if $in_header;
1970                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1971                                $in_header = 1;
1972                                next LINE;
1973                        }
1974
1975                        if ($diffinfo->{'status'} eq "A") { # added
1976                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1977                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1978                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1979                                              $diffinfo->{'to_id'}) . " (new)" .
1980                                      "</div>\n"; # class="diff_info"
1981
1982                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1983                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1984                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1985                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1986                                              $diffinfo->{'from_id'}) . " (deleted)" .
1987                                      "</div>\n"; # class="diff_info"
1988
1989                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1990                                 $diffinfo->{'status'} eq "C" || # copied
1991                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1992                                print "<div class=\"diff_info\">" .
1993                                      file_type($diffinfo->{'from_mode'}) . ":" .
1994                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1995                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1996                                              $diffinfo->{'from_id'}) .
1997                                      " -> " .
1998                                      file_type($diffinfo->{'to_mode'}) . ":" .
1999                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2000                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2001                                              $diffinfo->{'to_id'});
2002                                print "</div>\n"; # class="diff_info"
2003
2004                        } else { # modified, mode changed, ...
2005                                print "<div class=\"diff_info\">" .
2006                                      file_type($diffinfo->{'from_mode'}) . ":" .
2007                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2008                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2009                                              $diffinfo->{'from_id'}) .
2010                                      " -> " .
2011                                      file_type($diffinfo->{'to_mode'}) . ":" .
2012                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2013                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2014                                              $diffinfo->{'to_id'});
2015                                print "</div>\n"; # class="diff_info"
2016                        }
2017
2018                        #print "<div class=\"diff extended_header\">\n";
2019                        $in_header = 1;
2020                        next LINE;
2021                } # start of patch in patchset
2022
2023
2024                if ($in_header && $patch_line =~ m/^---/) {
2025                        #print "</div>\n"; # class="diff extended_header"
2026                        $in_header = 0;
2027
2028                        my $file = $diffinfo->{'from_file'};
2029                        $file  ||= $diffinfo->{'file'};
2030                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2031                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
2032                                        -class => "list"}, esc_html($file));
2033                        $patch_line =~ s|a/.*$|a/$file|g;
2034                        print "<div class=\"diff from_file\">$patch_line</div>\n";
2035
2036                        $patch_line = <$fd>;
2037                        chomp $patch_line;
2038
2039                        #$patch_line =~ m/^+++/;
2040                        $file    = $diffinfo->{'to_file'};
2041                        $file  ||= $diffinfo->{'file'};
2042                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2043                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
2044                                        -class => "list"}, esc_html($file));
2045                        $patch_line =~ s|b/.*|b/$file|g;
2046                        print "<div class=\"diff to_file\">$patch_line</div>\n";
2047
2048                        next LINE;
2049                }
2050                next LINE if $in_header;
2051
2052                print format_diff_line($patch_line);
2053        }
2054        print "</div>\n" if $patch_found; # class="patch"
2055
2056        print "</div>\n"; # class="patchset"
2057}
2058
2059# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2060
2061sub git_shortlog_body {
2062        # uses global variable $project
2063        my ($revlist, $from, $to, $refs, $extra) = @_;
2064
2065        $from = 0 unless defined $from;
2066        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2067
2068        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2069        my $alternate = 1;
2070        for (my $i = $from; $i <= $to; $i++) {
2071                my $commit = $revlist->[$i];
2072                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2073                my $ref = format_ref_marker($refs, $commit);
2074                my %co = parse_commit($commit);
2075                if ($alternate) {
2076                        print "<tr class=\"dark\">\n";
2077                } else {
2078                        print "<tr class=\"light\">\n";
2079                }
2080                $alternate ^= 1;
2081                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2082                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2083                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2084                      "<td>";
2085                print format_subject_html($co{'title'}, $co{'title_short'},
2086                                          href(action=>"commit", hash=>$commit), $ref);
2087                print "</td>\n" .
2088                      "<td class=\"link\">" .
2089                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2090                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2091                if (gitweb_have_snapshot()) {
2092                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2093                }
2094                print "</td>\n" .
2095                      "</tr>\n";
2096        }
2097        if (defined $extra) {
2098                print "<tr>\n" .
2099                      "<td colspan=\"4\">$extra</td>\n" .
2100                      "</tr>\n";
2101        }
2102        print "</table>\n";
2103}
2104
2105sub git_history_body {
2106        # Warning: assumes constant type (blob or tree) during history
2107        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2108
2109        $from = 0 unless defined $from;
2110        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2111
2112        print "<table class=\"history\" cellspacing=\"0\">\n";
2113        my $alternate = 1;
2114        for (my $i = $from; $i <= $to; $i++) {
2115                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2116                        next;
2117                }
2118
2119                my $commit = $1;
2120                my %co = parse_commit($commit);
2121                if (!%co) {
2122                        next;
2123                }
2124
2125                my $ref = format_ref_marker($refs, $commit);
2126
2127                if ($alternate) {
2128                        print "<tr class=\"dark\">\n";
2129                } else {
2130                        print "<tr class=\"light\">\n";
2131                }
2132                $alternate ^= 1;
2133                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2134                      # shortlog uses      chop_str($co{'author_name'}, 10)
2135                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2136                      "<td>";
2137                # originally git_history used chop_str($co{'title'}, 50)
2138                print format_subject_html($co{'title'}, $co{'title_short'},
2139                                          href(action=>"commit", hash=>$commit), $ref);
2140                print "</td>\n" .
2141                      "<td class=\"link\">" .
2142                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2143                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2144
2145                if ($ftype eq 'blob') {
2146                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2147                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2148                        if (defined $blob_current && defined $blob_parent &&
2149                                        $blob_current ne $blob_parent) {
2150                                print " | " .
2151                                        $cgi->a({-href => href(action=>"blobdiff",
2152                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2153                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2154                                                               file_name=>$file_name)},
2155                                                "diff to current");
2156                        }
2157                }
2158                print "</td>\n" .
2159                      "</tr>\n";
2160        }
2161        if (defined $extra) {
2162                print "<tr>\n" .
2163                      "<td colspan=\"4\">$extra</td>\n" .
2164                      "</tr>\n";
2165        }
2166        print "</table>\n";
2167}
2168
2169sub git_tags_body {
2170        # uses global variable $project
2171        my ($taglist, $from, $to, $extra) = @_;
2172        $from = 0 unless defined $from;
2173        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2174
2175        print "<table class=\"tags\" cellspacing=\"0\">\n";
2176        my $alternate = 1;
2177        for (my $i = $from; $i <= $to; $i++) {
2178                my $entry = $taglist->[$i];
2179                my %tag = %$entry;
2180                my $comment_lines = $tag{'comment'};
2181                my $comment = shift @$comment_lines;
2182                my $comment_short;
2183                if (defined $comment) {
2184                        $comment_short = chop_str($comment, 30, 5);
2185                }
2186                if ($alternate) {
2187                        print "<tr class=\"dark\">\n";
2188                } else {
2189                        print "<tr class=\"light\">\n";
2190                }
2191                $alternate ^= 1;
2192                print "<td><i>$tag{'age'}</i></td>\n" .
2193                      "<td>" .
2194                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2195                               -class => "list name"}, esc_html($tag{'name'})) .
2196                      "</td>\n" .
2197                      "<td>";
2198                if (defined $comment) {
2199                        print format_subject_html($comment, $comment_short,
2200                                                  href(action=>"tag", hash=>$tag{'id'}));
2201                }
2202                print "</td>\n" .
2203                      "<td class=\"selflink\">";
2204                if ($tag{'type'} eq "tag") {
2205                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2206                } else {
2207                        print "&nbsp;";
2208                }
2209                print "</td>\n" .
2210                      "<td class=\"link\">" . " | " .
2211                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2212                if ($tag{'reftype'} eq "commit") {
2213                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2214                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2215                } elsif ($tag{'reftype'} eq "blob") {
2216                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2217                }
2218                print "</td>\n" .
2219                      "</tr>";
2220        }
2221        if (defined $extra) {
2222                print "<tr>\n" .
2223                      "<td colspan=\"5\">$extra</td>\n" .
2224                      "</tr>\n";
2225        }
2226        print "</table>\n";
2227}
2228
2229sub git_heads_body {
2230        # uses global variable $project
2231        my ($headlist, $head, $from, $to, $extra) = @_;
2232        $from = 0 unless defined $from;
2233        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2234
2235        print "<table class=\"heads\" cellspacing=\"0\">\n";
2236        my $alternate = 1;
2237        for (my $i = $from; $i <= $to; $i++) {
2238                my $entry = $headlist->[$i];
2239                my %tag = %$entry;
2240                my $curr = $tag{'id'} eq $head;
2241                if ($alternate) {
2242                        print "<tr class=\"dark\">\n";
2243                } else {
2244                        print "<tr class=\"light\">\n";
2245                }
2246                $alternate ^= 1;
2247                print "<td><i>$tag{'age'}</i></td>\n" .
2248                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2249                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2250                               -class => "list name"},esc_html($tag{'name'})) .
2251                      "</td>\n" .
2252                      "<td class=\"link\">" .
2253                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2254                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2255                      $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2256                      "</td>\n" .
2257                      "</tr>";
2258        }
2259        if (defined $extra) {
2260                print "<tr>\n" .
2261                      "<td colspan=\"3\">$extra</td>\n" .
2262                      "</tr>\n";
2263        }
2264        print "</table>\n";
2265}
2266
2267## ======================================================================
2268## ======================================================================
2269## actions
2270
2271sub git_project_list {
2272        my $order = $cgi->param('o');
2273        if (defined $order && $order !~ m/project|descr|owner|age/) {
2274                die_error(undef, "Unknown order parameter");
2275        }
2276
2277        my @list = git_get_projects_list();
2278        my @projects;
2279        if (!@list) {
2280                die_error(undef, "No projects found");
2281        }
2282        foreach my $pr (@list) {
2283                my $head = git_get_head_hash($pr->{'path'});
2284                if (!defined $head) {
2285                        next;
2286                }
2287                $git_dir = "$projectroot/$pr->{'path'}";
2288                my %co = parse_commit($head);
2289                if (!%co) {
2290                        next;
2291                }
2292                $pr->{'commit'} = \%co;
2293                if (!defined $pr->{'descr'}) {
2294                        my $descr = git_get_project_description($pr->{'path'}) || "";
2295                        $pr->{'descr'} = chop_str($descr, 25, 5);
2296                }
2297                if (!defined $pr->{'owner'}) {
2298                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2299                }
2300                push @projects, $pr;
2301        }
2302
2303        git_header_html();
2304        if (-f $home_text) {
2305                print "<div class=\"index_include\">\n";
2306                open (my $fd, $home_text);
2307                print <$fd>;
2308                close $fd;
2309                print "</div>\n";
2310        }
2311        print "<table class=\"project_list\">\n" .
2312              "<tr>\n";
2313        $order ||= "project";
2314        if ($order eq "project") {
2315                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2316                print "<th>Project</th>\n";
2317        } else {
2318                print "<th>" .
2319                      $cgi->a({-href => href(project=>undef, order=>'project'),
2320                               -class => "header"}, "Project") .
2321                      "</th>\n";
2322        }
2323        if ($order eq "descr") {
2324                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2325                print "<th>Description</th>\n";
2326        } else {
2327                print "<th>" .
2328                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2329                               -class => "header"}, "Description") .
2330                      "</th>\n";
2331        }
2332        if ($order eq "owner") {
2333                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2334                print "<th>Owner</th>\n";
2335        } else {
2336                print "<th>" .
2337                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2338                               -class => "header"}, "Owner") .
2339                      "</th>\n";
2340        }
2341        if ($order eq "age") {
2342                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2343                print "<th>Last Change</th>\n";
2344        } else {
2345                print "<th>" .
2346                      $cgi->a({-href => href(project=>undef, order=>'age'),
2347                               -class => "header"}, "Last Change") .
2348                      "</th>\n";
2349        }
2350        print "<th></th>\n" .
2351              "</tr>\n";
2352        my $alternate = 1;
2353        foreach my $pr (@projects) {
2354                if ($alternate) {
2355                        print "<tr class=\"dark\">\n";
2356                } else {
2357                        print "<tr class=\"light\">\n";
2358                }
2359                $alternate ^= 1;
2360                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2361                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2362                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2363                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2364                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2365                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2366                      "<td class=\"link\">" .
2367                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2368                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2369                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2370                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2371                      "</td>\n" .
2372                      "</tr>\n";
2373        }
2374        print "</table>\n";
2375        git_footer_html();
2376}
2377
2378sub git_project_index {
2379        my @projects = git_get_projects_list();
2380
2381        print $cgi->header(
2382                -type => 'text/plain',
2383                -charset => 'utf-8',
2384                -content_disposition => 'inline; filename="index.aux"');
2385
2386        foreach my $pr (@projects) {
2387                if (!exists $pr->{'owner'}) {
2388                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2389                }
2390
2391                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2392                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2393                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2394                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2395                $path  =~ s/ /\+/g;
2396                $owner =~ s/ /\+/g;
2397
2398                print "$path $owner\n";
2399        }
2400}
2401
2402sub git_summary {
2403        my $descr = git_get_project_description($project) || "none";
2404        my $head = git_get_head_hash($project);
2405        my %co = parse_commit($head);
2406        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2407
2408        my $owner = git_get_project_owner($project);
2409
2410        my ($reflist, $refs) = git_get_refs_list();
2411
2412        my @taglist;
2413        my @headlist;
2414        foreach my $ref (@$reflist) {
2415                if ($ref->{'name'} =~ s!^heads/!!) {
2416                        push @headlist, $ref;
2417                } else {
2418                        $ref->{'name'} =~ s!^tags/!!;
2419                        push @taglist, $ref;
2420                }
2421        }
2422
2423        git_header_html();
2424        git_print_page_nav('summary','', $head);
2425
2426        print "<div class=\"title\">&nbsp;</div>\n";
2427        print "<table cellspacing=\"0\">\n" .
2428              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2429              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2430              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2431        # use per project git URL list in $projectroot/$project/cloneurl
2432        # or make project git URL from git base URL and project name
2433        my $url_tag = "URL";
2434        my @url_list = git_get_project_url_list($project);
2435        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2436        foreach my $git_url (@url_list) {
2437                next unless $git_url;
2438                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2439                $url_tag = "";
2440        }
2441        print "</table>\n";
2442
2443        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2444                git_get_head_hash($project)
2445                or die_error(undef, "Open git-rev-list failed");
2446        my @revlist = map { chomp; $_ } <$fd>;
2447        close $fd;
2448        git_print_header_div('shortlog');
2449        git_shortlog_body(\@revlist, 0, 15, $refs,
2450                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2451
2452        if (@taglist) {
2453                git_print_header_div('tags');
2454                git_tags_body(\@taglist, 0, 15,
2455                              $cgi->a({-href => href(action=>"tags")}, "..."));
2456        }
2457
2458        if (@headlist) {
2459                git_print_header_div('heads');
2460                git_heads_body(\@headlist, $head, 0, 15,
2461                               $cgi->a({-href => href(action=>"heads")}, "..."));
2462        }
2463
2464        git_footer_html();
2465}
2466
2467sub git_tag {
2468        my $head = git_get_head_hash($project);
2469        git_header_html();
2470        git_print_page_nav('','', $head,undef,$head);
2471        my %tag = parse_tag($hash);
2472        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2473        print "<div class=\"title_text\">\n" .
2474              "<table cellspacing=\"0\">\n" .
2475              "<tr>\n" .
2476              "<td>object</td>\n" .
2477              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2478                               $tag{'object'}) . "</td>\n" .
2479              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2480                                              $tag{'type'}) . "</td>\n" .
2481              "</tr>\n";
2482        if (defined($tag{'author'})) {
2483                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2484                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2485                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2486                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2487                        "</td></tr>\n";
2488        }
2489        print "</table>\n\n" .
2490              "</div>\n";
2491        print "<div class=\"page_body\">";
2492        my $comment = $tag{'comment'};
2493        foreach my $line (@$comment) {
2494                print esc_html($line) . "<br/>\n";
2495        }
2496        print "</div>\n";
2497        git_footer_html();
2498}
2499
2500sub git_blame2 {
2501        my $fd;
2502        my $ftype;
2503
2504        my ($have_blame) = gitweb_check_feature('blame');
2505        if (!$have_blame) {
2506                die_error('403 Permission denied', "Permission denied");
2507        }
2508        die_error('404 Not Found', "File name not defined") if (!$file_name);
2509        $hash_base ||= git_get_head_hash($project);
2510        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2511        my %co = parse_commit($hash_base)
2512                or die_error(undef, "Reading commit failed");
2513        if (!defined $hash) {
2514                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2515                        or die_error(undef, "Error looking up file");
2516        }
2517        $ftype = git_get_type($hash);
2518        if ($ftype !~ "blob") {
2519                die_error("400 Bad Request", "Object is not a blob");
2520        }
2521        open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2522                or die_error(undef, "Open git-blame failed");
2523        git_header_html();
2524        my $formats_nav =
2525                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2526                        "blob") .
2527                " | " .
2528                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2529                        "history") .
2530                " | " .
2531                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2532                        "HEAD");
2533        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2534        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2535        git_print_page_path($file_name, $ftype, $hash_base);
2536        my @rev_color = (qw(light2 dark2));
2537        my $num_colors = scalar(@rev_color);
2538        my $current_color = 0;
2539        my $last_rev;
2540        print <<HTML;
2541<div class="page_body">
2542<table class="blame">
2543<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2544HTML
2545        while (<$fd>) {
2546                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2547                my $full_rev = $1;
2548                my $rev = substr($full_rev, 0, 8);
2549                my $lineno = $2;
2550                my $data = $3;
2551
2552                if (!defined $last_rev) {
2553                        $last_rev = $full_rev;
2554                } elsif ($last_rev ne $full_rev) {
2555                        $last_rev = $full_rev;
2556                        $current_color = ++$current_color % $num_colors;
2557                }
2558                print "<tr class=\"$rev_color[$current_color]\">\n";
2559                print "<td class=\"sha1\">" .
2560                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2561                                esc_html($rev)) . "</td>\n";
2562                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2563                      esc_html($lineno) . "</a></td>\n";
2564                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2565                print "</tr>\n";
2566        }
2567        print "</table>\n";
2568        print "</div>";
2569        close $fd
2570                or print "Reading blob failed\n";
2571        git_footer_html();
2572}
2573
2574sub git_blame {
2575        my $fd;
2576
2577        my ($have_blame) = gitweb_check_feature('blame');
2578        if (!$have_blame) {
2579                die_error('403 Permission denied', "Permission denied");
2580        }
2581        die_error('404 Not Found', "File name not defined") if (!$file_name);
2582        $hash_base ||= git_get_head_hash($project);
2583        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2584        my %co = parse_commit($hash_base)
2585                or die_error(undef, "Reading commit failed");
2586        if (!defined $hash) {
2587                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2588                        or die_error(undef, "Error lookup file");
2589        }
2590        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2591                or die_error(undef, "Open git-annotate failed");
2592        git_header_html();
2593        my $formats_nav =
2594                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2595                        "blob") .
2596                " | " .
2597                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2598                        "history") .
2599                " | " .
2600                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2601                        "HEAD");
2602        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2603        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2604        git_print_page_path($file_name, 'blob', $hash_base);
2605        print "<div class=\"page_body\">\n";
2606        print <<HTML;
2607<table class="blame">
2608  <tr>
2609    <th>Commit</th>
2610    <th>Age</th>
2611    <th>Author</th>
2612    <th>Line</th>
2613    <th>Data</th>
2614  </tr>
2615HTML
2616        my @line_class = (qw(light dark));
2617        my $line_class_len = scalar (@line_class);
2618        my $line_class_num = $#line_class;
2619        while (my $line = <$fd>) {
2620                my $long_rev;
2621                my $short_rev;
2622                my $author;
2623                my $time;
2624                my $lineno;
2625                my $data;
2626                my $age;
2627                my $age_str;
2628                my $age_class;
2629
2630                chomp $line;
2631                $line_class_num = ($line_class_num + 1) % $line_class_len;
2632
2633                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2634                        $long_rev = $1;
2635                        $author   = $2;
2636                        $time     = $3;
2637                        $lineno   = $4;
2638                        $data     = $5;
2639                } else {
2640                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2641                        next;
2642                }
2643                $short_rev  = substr ($long_rev, 0, 8);
2644                $age        = time () - $time;
2645                $age_str    = age_string ($age);
2646                $age_str    =~ s/ /&nbsp;/g;
2647                $age_class  = age_class($age);
2648                $author     = esc_html ($author);
2649                $author     =~ s/ /&nbsp;/g;
2650
2651                $data = untabify($data);
2652                $data = esc_html ($data);
2653
2654                print <<HTML;
2655  <tr class="$line_class[$line_class_num]">
2656    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2657    <td class="$age_class">$age_str</td>
2658    <td>$author</td>
2659    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2660    <td class="pre">$data</td>
2661  </tr>
2662HTML
2663        } # while (my $line = <$fd>)
2664        print "</table>\n\n";
2665        close $fd
2666                or print "Reading blob failed.\n";
2667        print "</div>";
2668        git_footer_html();
2669}
2670
2671sub git_tags {
2672        my $head = git_get_head_hash($project);
2673        git_header_html();
2674        git_print_page_nav('','', $head,undef,$head);
2675        git_print_header_div('summary', $project);
2676
2677        my ($taglist) = git_get_refs_list("tags");
2678        if (@$taglist) {
2679                git_tags_body($taglist);
2680        }
2681        git_footer_html();
2682}
2683
2684sub git_heads {
2685        my $head = git_get_head_hash($project);
2686        git_header_html();
2687        git_print_page_nav('','', $head,undef,$head);
2688        git_print_header_div('summary', $project);
2689
2690        my ($headlist) = git_get_refs_list("heads");
2691        if (@$headlist) {
2692                git_heads_body($headlist, $head);
2693        }
2694        git_footer_html();
2695}
2696
2697sub git_blob_plain {
2698        my $expires;
2699
2700        if (!defined $hash) {
2701                if (defined $file_name) {
2702                        my $base = $hash_base || git_get_head_hash($project);
2703                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2704                                or die_error(undef, "Error lookup file");
2705                } else {
2706                        die_error(undef, "No file name defined");
2707                }
2708        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2709                # blobs defined by non-textual hash id's can be cached
2710                $expires = "+1d";
2711        }
2712
2713        my $type = shift;
2714        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2715                or die_error(undef, "Couldn't cat $file_name, $hash");
2716
2717        $type ||= blob_mimetype($fd, $file_name);
2718
2719        # save as filename, even when no $file_name is given
2720        my $save_as = "$hash";
2721        if (defined $file_name) {
2722                $save_as = $file_name;
2723        } elsif ($type =~ m/^text\//) {
2724                $save_as .= '.txt';
2725        }
2726
2727        print $cgi->header(
2728                -type => "$type",
2729                -expires=>$expires,
2730                -content_disposition => 'inline; filename="' . "$save_as" . '"');
2731        undef $/;
2732        binmode STDOUT, ':raw';
2733        print <$fd>;
2734        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2735        $/ = "\n";
2736        close $fd;
2737}
2738
2739sub git_blob {
2740        my $expires;
2741
2742        if (!defined $hash) {
2743                if (defined $file_name) {
2744                        my $base = $hash_base || git_get_head_hash($project);
2745                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2746                                or die_error(undef, "Error lookup file");
2747                } else {
2748                        die_error(undef, "No file name defined");
2749                }
2750        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2751                # blobs defined by non-textual hash id's can be cached
2752                $expires = "+1d";
2753        }
2754
2755        my ($have_blame) = gitweb_check_feature('blame');
2756        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2757                or die_error(undef, "Couldn't cat $file_name, $hash");
2758        my $mimetype = blob_mimetype($fd, $file_name);
2759        if ($mimetype !~ m/^text\//) {
2760                close $fd;
2761                return git_blob_plain($mimetype);
2762        }
2763        git_header_html(undef, $expires);
2764        my $formats_nav = '';
2765        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2766                if (defined $file_name) {
2767                        if ($have_blame) {
2768                                $formats_nav .=
2769                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2770                                                               hash=>$hash, file_name=>$file_name)},
2771                                                "blame") .
2772                                        " | ";
2773                        }
2774                        $formats_nav .=
2775                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2776                                                       hash=>$hash, file_name=>$file_name)},
2777                                        "history") .
2778                                " | " .
2779                                $cgi->a({-href => href(action=>"blob_plain",
2780                                                       hash=>$hash, file_name=>$file_name)},
2781                                        "raw") .
2782                                " | " .
2783                                $cgi->a({-href => href(action=>"blob",
2784                                                       hash_base=>"HEAD", file_name=>$file_name)},
2785                                        "HEAD");
2786                } else {
2787                        $formats_nav .=
2788                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2789                }
2790                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2791                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2792        } else {
2793                print "<div class=\"page_nav\">\n" .
2794                      "<br/><br/></div>\n" .
2795                      "<div class=\"title\">$hash</div>\n";
2796        }
2797        git_print_page_path($file_name, "blob", $hash_base);
2798        print "<div class=\"page_body\">\n";
2799        my $nr;
2800        while (my $line = <$fd>) {
2801                chomp $line;
2802                $nr++;
2803                $line = untabify($line);
2804                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2805                       $nr, $nr, $nr, esc_html($line);
2806        }
2807        close $fd
2808                or print "Reading blob failed.\n";
2809        print "</div>";
2810        git_footer_html();
2811}
2812
2813sub git_tree {
2814        my $have_snapshot = gitweb_have_snapshot();
2815
2816        if (!defined $hash_base) {
2817                $hash_base = "HEAD";
2818        }
2819        if (!defined $hash) {
2820                if (defined $file_name) {
2821                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2822                } else {
2823                        $hash = $hash_base;
2824                }
2825        }
2826        $/ = "\0";
2827        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2828                or die_error(undef, "Open git-ls-tree failed");
2829        my @entries = map { chomp; $_ } <$fd>;
2830        close $fd or die_error(undef, "Reading tree failed");
2831        $/ = "\n";
2832
2833        my $refs = git_get_references();
2834        my $ref = format_ref_marker($refs, $hash_base);
2835        git_header_html();
2836        my $basedir = '';
2837        my ($have_blame) = gitweb_check_feature('blame');
2838        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2839                my @views_nav = ();
2840                if (defined $file_name) {
2841                        push @views_nav,
2842                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2843                                                       hash=>$hash, file_name=>$file_name)},
2844                                        "history"),
2845                                $cgi->a({-href => href(action=>"tree",
2846                                                       hash_base=>"HEAD", file_name=>$file_name)},
2847                                        "HEAD"),
2848                }
2849                if ($have_snapshot) {
2850                        # FIXME: Should be available when we have no hash base as well.
2851                        push @views_nav,
2852                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2853                                        "snapshot");
2854                }
2855                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2856                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2857        } else {
2858                undef $hash_base;
2859                print "<div class=\"page_nav\">\n";
2860                print "<br/><br/></div>\n";
2861                print "<div class=\"title\">$hash</div>\n";
2862        }
2863        if (defined $file_name) {
2864                $basedir = $file_name;
2865                if ($basedir ne '' && substr($basedir, -1) ne '/') {
2866                        $basedir .= '/';
2867                }
2868        }
2869        git_print_page_path($file_name, 'tree', $hash_base);
2870        print "<div class=\"page_body\">\n";
2871        print "<table cellspacing=\"0\">\n";
2872        my $alternate = 1;
2873        # '..' (top directory) link if possible
2874        if (defined $hash_base &&
2875            defined $file_name && $file_name =~ m![^/]+$!) {
2876                if ($alternate) {
2877                        print "<tr class=\"dark\">\n";
2878                } else {
2879                        print "<tr class=\"light\">\n";
2880                }
2881                $alternate ^= 1;
2882
2883                my $up = $file_name;
2884                $up =~ s!/?[^/]+$!!;
2885                undef $up unless $up;
2886                # based on git_print_tree_entry
2887                print '<td class="mode">' . mode_str('040000') . "</td>\n";
2888                print '<td class="list">';
2889                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
2890                                             file_name=>$up)},
2891                              "..");
2892                print "</td>\n";
2893                print "<td class=\"link\"></td>\n";
2894
2895                print "</tr>\n";
2896        }
2897        foreach my $line (@entries) {
2898                my %t = parse_ls_tree_line($line, -z => 1);
2899
2900                if ($alternate) {
2901                        print "<tr class=\"dark\">\n";
2902                } else {
2903                        print "<tr class=\"light\">\n";
2904                }
2905                $alternate ^= 1;
2906
2907                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
2908
2909                print "</tr>\n";
2910        }
2911        print "</table>\n" .
2912              "</div>";
2913        git_footer_html();
2914}
2915
2916sub git_snapshot {
2917        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2918        my $have_snapshot = (defined $ctype && defined $suffix);
2919        if (!$have_snapshot) {
2920                die_error('403 Permission denied', "Permission denied");
2921        }
2922
2923        if (!defined $hash) {
2924                $hash = git_get_head_hash($project);
2925        }
2926
2927        my $filename = basename($project) . "-$hash.tar.$suffix";
2928
2929        print $cgi->header(
2930                -type => 'application/x-tar',
2931                -content_encoding => $ctype,
2932                -content_disposition => 'inline; filename="' . "$filename" . '"',
2933                -status => '200 OK');
2934
2935        my $git = git_cmd_str();
2936        my $name = $project;
2937        $name =~ s/\047/\047\\\047\047/g;
2938        open my $fd, "-|",
2939        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2940                or die_error(undef, "Execute git-tar-tree failed.");
2941        binmode STDOUT, ':raw';
2942        print <$fd>;
2943        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2944        close $fd;
2945
2946}
2947
2948sub git_log {
2949        my $head = git_get_head_hash($project);
2950        if (!defined $hash) {
2951                $hash = $head;
2952        }
2953        if (!defined $page) {
2954                $page = 0;
2955        }
2956        my $refs = git_get_references();
2957
2958        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2959        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2960                or die_error(undef, "Open git-rev-list failed");
2961        my @revlist = map { chomp; $_ } <$fd>;
2962        close $fd;
2963
2964        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2965
2966        git_header_html();
2967        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2968
2969        if (!@revlist) {
2970                my %co = parse_commit($hash);
2971
2972                git_print_header_div('summary', $project);
2973                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2974        }
2975        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2976                my $commit = $revlist[$i];
2977                my $ref = format_ref_marker($refs, $commit);
2978                my %co = parse_commit($commit);
2979                next if !%co;
2980                my %ad = parse_date($co{'author_epoch'});
2981                git_print_header_div('commit',
2982                               "<span class=\"age\">$co{'age_string'}</span>" .
2983                               esc_html($co{'title'}) . $ref,
2984                               $commit);
2985                print "<div class=\"title_text\">\n" .
2986                      "<div class=\"log_link\">\n" .
2987                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2988                      " | " .
2989                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2990                      " | " .
2991                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2992                      "<br/>\n" .
2993                      "</div>\n" .
2994                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2995                      "</div>\n";
2996
2997                print "<div class=\"log_body\">\n";
2998                git_print_simplified_log($co{'comment'});
2999                print "</div>\n";
3000        }
3001        git_footer_html();
3002}
3003
3004sub git_commit {
3005        my %co = parse_commit($hash);
3006        if (!%co) {
3007                die_error(undef, "Unknown commit object");
3008        }
3009        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3010        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3011
3012        my $parent = $co{'parent'};
3013        if (!defined $parent) {
3014                $parent = "--root";
3015        }
3016        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3017                or die_error(undef, "Open git-diff-tree failed");
3018        my @difftree = map { chomp; $_ } <$fd>;
3019        close $fd or die_error(undef, "Reading git-diff-tree failed");
3020
3021        # non-textual hash id's can be cached
3022        my $expires;
3023        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3024                $expires = "+1d";
3025        }
3026        my $refs = git_get_references();
3027        my $ref = format_ref_marker($refs, $co{'id'});
3028
3029        my $have_snapshot = gitweb_have_snapshot();
3030
3031        my @views_nav = ();
3032        if (defined $file_name && defined $co{'parent'}) {
3033                push @views_nav,
3034                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3035                                "blame");
3036        }
3037        git_header_html(undef, $expires);
3038        git_print_page_nav('commit', '',
3039                           $hash, $co{'tree'}, $hash,
3040                           join (' | ', @views_nav));
3041
3042        if (defined $co{'parent'}) {
3043                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3044        } else {
3045                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3046        }
3047        print "<div class=\"title_text\">\n" .
3048              "<table cellspacing=\"0\">\n";
3049        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3050              "<tr>" .
3051              "<td></td><td> $ad{'rfc2822'}";
3052        if ($ad{'hour_local'} < 6) {
3053                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3054                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3055        } else {
3056                printf(" (%02d:%02d %s)",
3057                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3058        }
3059        print "</td>" .
3060              "</tr>\n";
3061        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3062        print "<tr><td></td><td> $cd{'rfc2822'}" .
3063              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3064              "</td></tr>\n";
3065        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3066        print "<tr>" .
3067              "<td>tree</td>" .
3068              "<td class=\"sha1\">" .
3069              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3070                       class => "list"}, $co{'tree'}) .
3071              "</td>" .
3072              "<td class=\"link\">" .
3073              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3074                      "tree");
3075        if ($have_snapshot) {
3076                print " | " .
3077                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3078        }
3079        print "</td>" .
3080              "</tr>\n";
3081        my $parents = $co{'parents'};
3082        foreach my $par (@$parents) {
3083                print "<tr>" .
3084                      "<td>parent</td>" .
3085                      "<td class=\"sha1\">" .
3086                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3087                               class => "list"}, $par) .
3088                      "</td>" .
3089                      "<td class=\"link\">" .
3090                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3091                      " | " .
3092                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3093                      "</td>" .
3094                      "</tr>\n";
3095        }
3096        print "</table>".
3097              "</div>\n";
3098
3099        print "<div class=\"page_body\">\n";
3100        git_print_log($co{'comment'});
3101        print "</div>\n";
3102
3103        git_difftree_body(\@difftree, $hash, $parent);
3104
3105        git_footer_html();
3106}
3107
3108sub git_blobdiff {
3109        my $format = shift || 'html';
3110
3111        my $fd;
3112        my @difftree;
3113        my %diffinfo;
3114        my $expires;
3115
3116        # preparing $fd and %diffinfo for git_patchset_body
3117        # new style URI
3118        if (defined $hash_base && defined $hash_parent_base) {
3119                if (defined $file_name) {
3120                        # read raw output
3121                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3122                                "--", $file_name
3123                                or die_error(undef, "Open git-diff-tree failed");
3124                        @difftree = map { chomp; $_ } <$fd>;
3125                        close $fd
3126                                or die_error(undef, "Reading git-diff-tree failed");
3127                        @difftree
3128                                or die_error('404 Not Found', "Blob diff not found");
3129
3130                } elsif (defined $hash &&
3131                         $hash =~ /[0-9a-fA-F]{40}/) {
3132                        # try to find filename from $hash
3133
3134                        # read filtered raw output
3135                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3136                                or die_error(undef, "Open git-diff-tree failed");
3137                        @difftree =
3138                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3139                                # $hash == to_id
3140                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3141                                map { chomp; $_ } <$fd>;
3142                        close $fd
3143                                or die_error(undef, "Reading git-diff-tree failed");
3144                        @difftree
3145                                or die_error('404 Not Found', "Blob diff not found");
3146
3147                } else {
3148                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3149                }
3150
3151                if (@difftree > 1) {
3152                        die_error('404 Not Found', "Ambiguous blob diff specification");
3153                }
3154
3155                %diffinfo = parse_difftree_raw_line($difftree[0]);
3156                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3157                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3158
3159                $hash_parent ||= $diffinfo{'from_id'};
3160                $hash        ||= $diffinfo{'to_id'};
3161
3162                # non-textual hash id's can be cached
3163                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3164                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3165                        $expires = '+1d';
3166                }
3167
3168                # open patch output
3169                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3170                        '-p', $hash_parent_base, $hash_base,
3171                        "--", $file_name
3172                        or die_error(undef, "Open git-diff-tree failed");
3173        }
3174
3175        # old/legacy style URI
3176        if (!%diffinfo && # if new style URI failed
3177            defined $hash && defined $hash_parent) {
3178                # fake git-diff-tree raw output
3179                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3180                $diffinfo{'from_id'} = $hash_parent;
3181                $diffinfo{'to_id'}   = $hash;
3182                if (defined $file_name) {
3183                        if (defined $file_parent) {
3184                                $diffinfo{'status'} = '2';
3185                                $diffinfo{'from_file'} = $file_parent;
3186                                $diffinfo{'to_file'}   = $file_name;
3187                        } else { # assume not renamed
3188                                $diffinfo{'status'} = '1';
3189                                $diffinfo{'from_file'} = $file_name;
3190                                $diffinfo{'to_file'}   = $file_name;
3191                        }
3192                } else { # no filename given
3193                        $diffinfo{'status'} = '2';
3194                        $diffinfo{'from_file'} = $hash_parent;
3195                        $diffinfo{'to_file'}   = $hash;
3196                }
3197
3198                # non-textual hash id's can be cached
3199                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3200                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3201                        $expires = '+1d';
3202                }
3203
3204                # open patch output
3205                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3206                        or die_error(undef, "Open git-diff failed");
3207        } else  {
3208                die_error('404 Not Found', "Missing one of the blob diff parameters")
3209                        unless %diffinfo;
3210        }
3211
3212        # header
3213        if ($format eq 'html') {
3214                my $formats_nav =
3215                        $cgi->a({-href => href(action=>"blobdiff_plain",
3216                                               hash=>$hash, hash_parent=>$hash_parent,
3217                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3218                                               file_name=>$file_name, file_parent=>$file_parent)},
3219                                "raw");
3220                git_header_html(undef, $expires);
3221                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3222                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3223                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3224                } else {
3225                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3226                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3227                }
3228                if (defined $file_name) {
3229                        git_print_page_path($file_name, "blob", $hash_base);
3230                } else {
3231                        print "<div class=\"page_path\"></div>\n";
3232                }
3233
3234        } elsif ($format eq 'plain') {
3235                print $cgi->header(
3236                        -type => 'text/plain',
3237                        -charset => 'utf-8',
3238                        -expires => $expires,
3239                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3240
3241                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3242
3243        } else {
3244                die_error(undef, "Unknown blobdiff format");
3245        }
3246
3247        # patch
3248        if ($format eq 'html') {
3249                print "<div class=\"page_body\">\n";
3250
3251                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3252                close $fd;
3253
3254                print "</div>\n"; # class="page_body"
3255                git_footer_html();
3256
3257        } else {
3258                while (my $line = <$fd>) {
3259                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3260                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3261
3262                        print $line;
3263
3264                        last if $line =~ m!^\+\+\+!;
3265                }
3266                local $/ = undef;
3267                print <$fd>;
3268                close $fd;
3269        }
3270}
3271
3272sub git_blobdiff_plain {
3273        git_blobdiff('plain');
3274}
3275
3276sub git_commitdiff {
3277        my $format = shift || 'html';
3278        my %co = parse_commit($hash);
3279        if (!%co) {
3280                die_error(undef, "Unknown commit object");
3281        }
3282        if (!defined $hash_parent) {
3283                $hash_parent = $co{'parent'} || '--root';
3284        }
3285
3286        # read commitdiff
3287        my $fd;
3288        my @difftree;
3289        if ($format eq 'html') {
3290                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3291                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3292                        or die_error(undef, "Open git-diff-tree failed");
3293
3294                while (chomp(my $line = <$fd>)) {
3295                        # empty line ends raw part of diff-tree output
3296                        last unless $line;
3297                        push @difftree, $line;
3298                }
3299
3300        } elsif ($format eq 'plain') {
3301                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3302                        '-p', $hash_parent, $hash
3303                        or die_error(undef, "Open git-diff-tree failed");
3304
3305        } else {
3306                die_error(undef, "Unknown commitdiff format");
3307        }
3308
3309        # non-textual hash id's can be cached
3310        my $expires;
3311        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3312                $expires = "+1d";
3313        }
3314
3315        # write commit message
3316        if ($format eq 'html') {
3317                my $refs = git_get_references();
3318                my $ref = format_ref_marker($refs, $co{'id'});
3319                my $formats_nav =
3320                        $cgi->a({-href => href(action=>"commitdiff_plain",
3321                                               hash=>$hash, hash_parent=>$hash_parent)},
3322                                "raw");
3323
3324                git_header_html(undef, $expires);
3325                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3326                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3327                git_print_authorship(\%co);
3328                print "<div class=\"page_body\">\n";
3329                print "<div class=\"log\">\n";
3330                git_print_simplified_log($co{'comment'}, 1); # skip title
3331                print "</div>\n"; # class="log"
3332
3333        } elsif ($format eq 'plain') {
3334                my $refs = git_get_references("tags");
3335                my $tagname = git_get_rev_name_tags($hash);
3336                my $filename = basename($project) . "-$hash.patch";
3337
3338                print $cgi->header(
3339                        -type => 'text/plain',
3340                        -charset => 'utf-8',
3341                        -expires => $expires,
3342                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3343                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3344                print <<TEXT;
3345From: $co{'author'}
3346Date: $ad{'rfc2822'} ($ad{'tz_local'})
3347Subject: $co{'title'}
3348TEXT
3349                print "X-Git-Tag: $tagname\n" if $tagname;
3350                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3351
3352                foreach my $line (@{$co{'comment'}}) {
3353                        print "$line\n";
3354                }
3355                print "---\n\n";
3356        }
3357
3358        # write patch
3359        if ($format eq 'html') {
3360                git_difftree_body(\@difftree, $hash, $hash_parent);
3361                print "<br/>\n";
3362
3363                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3364                close $fd;
3365                print "</div>\n"; # class="page_body"
3366                git_footer_html();
3367
3368        } elsif ($format eq 'plain') {
3369                local $/ = undef;
3370                print <$fd>;
3371                close $fd
3372                        or print "Reading git-diff-tree failed\n";
3373        }
3374}
3375
3376sub git_commitdiff_plain {
3377        git_commitdiff('plain');
3378}
3379
3380sub git_history {
3381        if (!defined $hash_base) {
3382                $hash_base = git_get_head_hash($project);
3383        }
3384        if (!defined $page) {
3385                $page = 0;
3386        }
3387        my $ftype;
3388        my %co = parse_commit($hash_base);
3389        if (!%co) {
3390                die_error(undef, "Unknown commit object");
3391        }
3392
3393        my $refs = git_get_references();
3394        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3395
3396        if (!defined $hash && defined $file_name) {
3397                $hash = git_get_hash_by_path($hash_base, $file_name);
3398        }
3399        if (defined $hash) {
3400                $ftype = git_get_type($hash);
3401        }
3402
3403        open my $fd, "-|",
3404                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3405                        or die_error(undef, "Open git-rev-list-failed");
3406        my @revlist = map { chomp; $_ } <$fd>;
3407        close $fd
3408                or die_error(undef, "Reading git-rev-list failed");
3409
3410        my $paging_nav = '';
3411        if ($page > 0) {
3412                $paging_nav .=
3413                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3414                                               file_name=>$file_name)},
3415                                "first");
3416                $paging_nav .= " &sdot; " .
3417                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3418                                               file_name=>$file_name, page=>$page-1),
3419                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3420        } else {
3421                $paging_nav .= "first";
3422                $paging_nav .= " &sdot; prev";
3423        }
3424        if ($#revlist >= (100 * ($page+1)-1)) {
3425                $paging_nav .= " &sdot; " .
3426                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3427                                               file_name=>$file_name, page=>$page+1),
3428                                 -accesskey => "n", -title => "Alt-n"}, "next");
3429        } else {
3430                $paging_nav .= " &sdot; next";
3431        }
3432        my $next_link = '';
3433        if ($#revlist >= (100 * ($page+1)-1)) {
3434                $next_link =
3435                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3436                                               file_name=>$file_name, page=>$page+1),
3437                                 -title => "Alt-n"}, "next");
3438        }
3439
3440        git_header_html();
3441        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3442        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3443        git_print_page_path($file_name, $ftype, $hash_base);
3444
3445        git_history_body(\@revlist, ($page * 100), $#revlist,
3446                         $refs, $hash_base, $ftype, $next_link);
3447
3448        git_footer_html();
3449}
3450
3451sub git_search {
3452        if (!defined $searchtext) {
3453                die_error(undef, "Text field empty");
3454        }
3455        if (!defined $hash) {
3456                $hash = git_get_head_hash($project);
3457        }
3458        my %co = parse_commit($hash);
3459        if (!%co) {
3460                die_error(undef, "Unknown commit object");
3461        }
3462
3463        my $commit_search = 1;
3464        my $author_search = 0;
3465        my $committer_search = 0;
3466        my $pickaxe_search = 0;
3467        if ($searchtext =~ s/^author\\://i) {
3468                $author_search = 1;
3469        } elsif ($searchtext =~ s/^committer\\://i) {
3470                $committer_search = 1;
3471        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3472                $commit_search = 0;
3473                $pickaxe_search = 1;
3474
3475                # pickaxe may take all resources of your box and run for several minutes
3476                # with every query - so decide by yourself how public you make this feature
3477                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3478                if (!$have_pickaxe) {
3479                        die_error('403 Permission denied', "Permission denied");
3480                }
3481        }
3482        git_header_html();
3483        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3484        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3485
3486        print "<table cellspacing=\"0\">\n";
3487        my $alternate = 1;
3488        if ($commit_search) {
3489                $/ = "\0";
3490                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3491                while (my $commit_text = <$fd>) {
3492                        if (!grep m/$searchtext/i, $commit_text) {
3493                                next;
3494                        }
3495                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3496                                next;
3497                        }
3498                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3499                                next;
3500                        }
3501                        my @commit_lines = split "\n", $commit_text;
3502                        my %co = parse_commit(undef, \@commit_lines);
3503                        if (!%co) {
3504                                next;
3505                        }
3506                        if ($alternate) {
3507                                print "<tr class=\"dark\">\n";
3508                        } else {
3509                                print "<tr class=\"light\">\n";
3510                        }
3511                        $alternate ^= 1;
3512                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3513                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3514                              "<td>" .
3515                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3516                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3517                        my $comment = $co{'comment'};
3518                        foreach my $line (@$comment) {
3519                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3520                                        my $lead = esc_html($1) || "";
3521                                        $lead = chop_str($lead, 30, 10);
3522                                        my $match = esc_html($2) || "";
3523                                        my $trail = esc_html($3) || "";
3524                                        $trail = chop_str($trail, 30, 10);
3525                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3526                                        print chop_str($text, 80, 5) . "<br/>\n";
3527                                }
3528                        }
3529                        print "</td>\n" .
3530                              "<td class=\"link\">" .
3531                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3532                              " | " .
3533                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3534                        print "</td>\n" .
3535                              "</tr>\n";
3536                }
3537                close $fd;
3538        }
3539
3540        if ($pickaxe_search) {
3541                $/ = "\n";
3542                my $git_command = git_cmd_str();
3543                open my $fd, "-|", "$git_command rev-list $hash | " .
3544                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3545                undef %co;
3546                my @files;
3547                while (my $line = <$fd>) {
3548                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3549                                my %set;
3550                                $set{'file'} = $6;
3551                                $set{'from_id'} = $3;
3552                                $set{'to_id'} = $4;
3553                                $set{'id'} = $set{'to_id'};
3554                                if ($set{'id'} =~ m/0{40}/) {
3555                                        $set{'id'} = $set{'from_id'};
3556                                }
3557                                if ($set{'id'} =~ m/0{40}/) {
3558                                        next;
3559                                }
3560                                push @files, \%set;
3561                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3562                                if (%co) {
3563                                        if ($alternate) {
3564                                                print "<tr class=\"dark\">\n";
3565                                        } else {
3566                                                print "<tr class=\"light\">\n";
3567                                        }
3568                                        $alternate ^= 1;
3569                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3570                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3571                                              "<td>" .
3572                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3573                                                      -class => "list subject"},
3574                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3575                                        while (my $setref = shift @files) {
3576                                                my %set = %$setref;
3577                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3578                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3579                                                              -class => "list"},
3580                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3581                                                      "<br/>\n";
3582                                        }
3583                                        print "</td>\n" .
3584                                              "<td class=\"link\">" .
3585                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3586                                              " | " .
3587                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3588                                        print "</td>\n" .
3589                                              "</tr>\n";
3590                                }
3591                                %co = parse_commit($1);
3592                        }
3593                }
3594                close $fd;
3595        }
3596        print "</table>\n";
3597        git_footer_html();
3598}
3599
3600sub git_shortlog {
3601        my $head = git_get_head_hash($project);
3602        if (!defined $hash) {
3603                $hash = $head;
3604        }
3605        if (!defined $page) {
3606                $page = 0;
3607        }
3608        my $refs = git_get_references();
3609
3610        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3611        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3612                or die_error(undef, "Open git-rev-list failed");
3613        my @revlist = map { chomp; $_ } <$fd>;
3614        close $fd;
3615
3616        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3617        my $next_link = '';
3618        if ($#revlist >= (100 * ($page+1)-1)) {
3619                $next_link =
3620                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3621                                 -title => "Alt-n"}, "next");
3622        }
3623
3624
3625        git_header_html();
3626        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3627        git_print_header_div('summary', $project);
3628
3629        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3630
3631        git_footer_html();
3632}
3633
3634## ......................................................................
3635## feeds (RSS, OPML)
3636
3637sub git_rss {
3638        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3639        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3640                or die_error(undef, "Open git-rev-list failed");
3641        my @revlist = map { chomp; $_ } <$fd>;
3642        close $fd or die_error(undef, "Reading git-rev-list failed");
3643        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3644        print <<XML;
3645<?xml version="1.0" encoding="utf-8"?>
3646<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3647<channel>
3648<title>$project $my_uri $my_url</title>
3649<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3650<description>$project log</description>
3651<language>en</language>
3652XML
3653
3654        for (my $i = 0; $i <= $#revlist; $i++) {
3655                my $commit = $revlist[$i];
3656                my %co = parse_commit($commit);
3657                # we read 150, we always show 30 and the ones more recent than 48 hours
3658                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3659                        last;
3660                }
3661                my %cd = parse_date($co{'committer_epoch'});
3662                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3663                        $co{'parent'}, $co{'id'}
3664                        or next;
3665                my @difftree = map { chomp; $_ } <$fd>;
3666                close $fd
3667                        or next;
3668                print "<item>\n" .
3669                      "<title>" .
3670                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3671                      "</title>\n" .
3672                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3673                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3674                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3675                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3676                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3677                      "<content:encoded>" .
3678                      "<![CDATA[\n";
3679                my $comment = $co{'comment'};
3680                foreach my $line (@$comment) {
3681                        $line = to_utf8($line);
3682                        print "$line<br/>\n";
3683                }
3684                print "<br/>\n";
3685                foreach my $line (@difftree) {
3686                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3687                                next;
3688                        }
3689                        my $file = esc_html(unquote($7));
3690                        $file = to_utf8($file);
3691                        print "$file<br/>\n";
3692                }
3693                print "]]>\n" .
3694                      "</content:encoded>\n" .
3695                      "</item>\n";
3696        }
3697        print "</channel></rss>";
3698}
3699
3700sub git_opml {
3701        my @list = git_get_projects_list();
3702
3703        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3704        print <<XML;
3705<?xml version="1.0" encoding="utf-8"?>
3706<opml version="1.0">
3707<head>
3708  <title>$site_name Git OPML Export</title>
3709</head>
3710<body>
3711<outline text="git RSS feeds">
3712XML
3713
3714        foreach my $pr (@list) {
3715                my %proj = %$pr;
3716                my $head = git_get_head_hash($proj{'path'});
3717                if (!defined $head) {
3718                        next;
3719                }
3720                $git_dir = "$projectroot/$proj{'path'}";
3721                my %co = parse_commit($head);
3722                if (!%co) {
3723                        next;
3724                }
3725
3726                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3727                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3728                my $html = "$my_url?p=$proj{'path'};a=summary";
3729                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3730        }
3731        print <<XML;
3732</outline>
3733</body>
3734</opml>
3735XML
3736}