gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $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
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $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
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # html text to include at home page
  45 our $home_text = "++GITWEB_HOMETEXT++";
  46
  47 # URI of default stylesheet
  48 our $stylesheet = "++GITWEB_CSS++";
  49 # URI of GIT logo (72x27 size)
  50 our $logo = "++GITWEB_LOGO++";
  51 # URI of GIT favicon, assumed to be image/png type
  52 our $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";
  57 our $logo_url = "http://git.or.cz/";
  58 our $logo_label = "git homepage";
  59
  60 # source of projects list
  61 our $projects_list = "++GITWEB_LIST++";
  62
  63 # show repository only if this file exists
  64 # (only effective if this variable evaluates to true)
  65 our $export_ok = "++GITWEB_EXPORT_OK++";
  66
  67 # only allow viewing of repositories also shown on the overview page
  68 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  69
  70 # list of git base URLs used for URL to where fetch project from,
  71 # i.e. full URL is "$git_base_url/$project"
  72 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  73
  74 # default blob_plain mimetype and default charset for text/plain blob
  75 our $default_blob_plain_mimetype = 'text/plain';
  76 our $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)
  80 our $mimetypes_file = undef;
  81
  82 # You define site-wide feature defaults here; override them with
  83 # $GITWEB_CONFIG as necessary.
  84 our %feature = (
  85         # feature => {
  86         #       'sub' => feature-sub (subroutine),
  87         #       'override' => allow-override (boolean),
  88         #       'default' => [ default options...] (array reference)}
  89         #
  90         # if feature is overridable (it means that allow-override has true value,
  91         # then feature-sub will be called with default options as parameters;
  92         # return value of feature-sub indicates if to enable specified feature
  93         #
  94         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  95
  96         'blame' => {
  97                 'sub' => \&feature_blame,
  98                 'override' => 0,
  99                 'default' => [0]},
 100
 101         'snapshot' => {
 102                 'sub' => \&feature_snapshot,
 103                 'override' => 0,
 104                 #         => [content-encoding, suffix, program]
 105                 'default' => ['x-gzip', 'gz', 'gzip']},
 106
 107         'pickaxe' => {
 108                 'sub' => \&feature_pickaxe,
 109                 'override' => 0,
 110                 'default' => [1]},
 111 );
 112
 113 sub gitweb_check_feature {
 114         my ($name) = @_;
 115         return unless exists $feature{$name};
 116         my ($sub, $override, @defaults) = (
 117                 $feature{$name}{'sub'},
 118                 $feature{$name}{'override'},
 119                 @{$feature{$name}{'default'}});
 120         if (!$override) { return @defaults; }
 121         return $sub->(@defaults);
 122 }
 123
 124 # To enable system wide have in $GITWEB_CONFIG
 125 # $feature{'blame'}{'default'} = [1];
 126 # To have project specific config enable override in $GITWEB_CONFIG
 127 # $feature{'blame'}{'override'} = 1;
 128 # and in project config gitweb.blame = 0|1;
 129
 130 sub feature_blame {
 131         my ($val) = git_get_project_config('blame', '--bool');
 132
 133         if ($val eq 'true') {
 134                 return 1;
 135         } elsif ($val eq 'false') {
 136                 return 0;
 137         }
 138
 139         return $_[0];
 140 }
 141
 142 # To disable system wide have in $GITWEB_CONFIG
 143 # $feature{'snapshot'}{'default'} = [undef];
 144 # To have project specific config enable override in $GITWEB_CONFIG
 145 # $feature{'blame'}{'override'} = 1;
 146 # and in project config  gitweb.snapshot = none|gzip|bzip2
 147
 148 sub feature_snapshot {
 149         my ($ctype, $suffix, $command) = @_;
 150
 151         my ($val) = git_get_project_config('snapshot');
 152
 153         if ($val eq 'gzip') {
 154                 return ('x-gzip', 'gz', 'gzip');
 155         } elsif ($val eq 'bzip2') {
 156                 return ('x-bzip2', 'bz2', 'bzip2');
 157         } elsif ($val eq 'none') {
 158                 return ();
 159         }
 160
 161         return ($ctype, $suffix, $command);
 162 }
 163
 164 sub gitweb_have_snapshot {
 165         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 166         my $have_snapshot = (defined $ctype && defined $suffix);
 167
 168         return $have_snapshot;
 169 }
 170
 171 # To enable system wide have in $GITWEB_CONFIG
 172 # $feature{'pickaxe'}{'default'} = [1];
 173 # To have project specific config enable override in $GITWEB_CONFIG
 174 # $feature{'pickaxe'}{'override'} = 1;
 175 # and in project config gitweb.pickaxe = 0|1;
 176
 177 sub feature_pickaxe {
 178         my ($val) = git_get_project_config('pickaxe', '--bool');
 179
 180         if ($val eq 'true') {
 181                 return (1);
 182         } elsif ($val eq 'false') {
 183                 return (0);
 184         }
 185
 186         return ($_[0]);
 187 }
 188
 189 # rename detection options for git-diff and git-diff-tree
 190 # - default is '-M', with the cost proportional to
 191 #   (number of removed files) * (number of new files).
 192 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 193 #   (number of changed files + number of removed files) * (number of new files)
 194 # - even more costly is '-C', '--find-copies-harder' with cost
 195 #   (number of files in the original tree) * (number of new files)
 196 # - one might want to include '-B' option, e.g. '-B', '-M'
 197 our @diff_opts = ('-M'); # taken from git_commit
 198
 199 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 200 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 201
 202 # version of the core git binary
 203 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 204
 205 $projects_list ||= $projectroot;
 206
 207 # ======================================================================
 208 # input validation and dispatch
 209 our $action = $cgi->param('a');
 210 if (defined $action) {
 211         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 212                 die_error(undef, "Invalid action parameter");
 213         }
 214 }
 215
 216 # parameters which are pathnames
 217 our $project = $cgi->param('p');
 218 if (defined $project) {
 219         if (!validate_pathname($project) ||
 220             !(-d "$projectroot/$project") ||
 221             !(-e "$projectroot/$project/HEAD") ||
 222             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 223             ($strict_export && !project_in_list($project))) {
 224                 undef $project;
 225                 die_error(undef, "No such project");
 226         }
 227 }
 228
 229 our $file_name = $cgi->param('f');
 230 if (defined $file_name) {
 231         if (!validate_pathname($file_name)) {
 232                 die_error(undef, "Invalid file parameter");
 233         }
 234 }
 235
 236 our $file_parent = $cgi->param('fp');
 237 if (defined $file_parent) {
 238         if (!validate_pathname($file_parent)) {
 239                 die_error(undef, "Invalid file parent parameter");
 240         }
 241 }
 242
 243 # parameters which are refnames
 244 our $hash = $cgi->param('h');
 245 if (defined $hash) {
 246         if (!validate_refname($hash)) {
 247                 die_error(undef, "Invalid hash parameter");
 248         }
 249 }
 250
 251 our $hash_parent = $cgi->param('hp');
 252 if (defined $hash_parent) {
 253         if (!validate_refname($hash_parent)) {
 254                 die_error(undef, "Invalid hash parent parameter");
 255         }
 256 }
 257
 258 our $hash_base = $cgi->param('hb');
 259 if (defined $hash_base) {
 260         if (!validate_refname($hash_base)) {
 261                 die_error(undef, "Invalid hash base parameter");
 262         }
 263 }
 264
 265 our $hash_parent_base = $cgi->param('hpb');
 266 if (defined $hash_parent_base) {
 267         if (!validate_refname($hash_parent_base)) {
 268                 die_error(undef, "Invalid hash parent base parameter");
 269         }
 270 }
 271
 272 # other parameters
 273 our $page = $cgi->param('pg');
 274 if (defined $page) {
 275         if ($page =~ m/[^0-9]/) {
 276                 die_error(undef, "Invalid page parameter");
 277         }
 278 }
 279
 280 our $searchtext = $cgi->param('s');
 281 if (defined $searchtext) {
 282         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 283                 die_error(undef, "Invalid search parameter");
 284         }
 285         $searchtext = quotemeta $searchtext;
 286 }
 287
 288 # now read PATH_INFO and use it as alternative to parameters
 289 sub evaluate_path_info {
 290         return if defined $project;
 291         my $path_info = $ENV{"PATH_INFO"};
 292         return if !$path_info;
 293         $path_info =~ s,^/+,,;
 294         return if !$path_info;
 295         # find which part of PATH_INFO is project
 296         $project = $path_info;
 297         $project =~ s,/+$,,;
 298         while ($project && !-e "$projectroot/$project/HEAD") {
 299                 $project =~ s,/*[^/]*$,,;
 300         }
 301         # validate project
 302         $project = validate_pathname($project);
 303         if (!$project ||
 304             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 305             ($strict_export && !project_in_list($project))) {
 306                 undef $project;
 307                 return;
 308         }
 309         # do not change any parameters if an action is given using the query string
 310         return if $action;
 311         $path_info =~ s,^$project/*,,;
 312         my ($refname, $pathname) = split(/:/, $path_info, 2);
 313         if (defined $pathname) {
 314                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 315                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 316                 $pathname =~ s,^/+,,;
 317                 if (!$pathname || substr($pathname, -1) eq "/") {
 318                         $action  ||= "tree";
 319                         $pathname =~ s,/$,,;
 320                 } else {
 321                         $action  ||= "blob_plain";
 322                 }
 323                 $hash_base ||= validate_refname($refname);
 324                 $file_name ||= validate_pathname($pathname);
 325         } elsif (defined $refname) {
 326                 # we got "project.git/branch"
 327                 $action ||= "shortlog";
 328                 $hash   ||= validate_refname($refname);
 329         }
 330 }
 331 evaluate_path_info();
 332
 333 # path to the current git repository
 334 our $git_dir;
 335 $git_dir = "$projectroot/$project" if $project;
 336
 337 # dispatch
 338 my %actions = (
 339         "blame" => \&git_blame2,
 340         "blobdiff" => \&git_blobdiff,
 341         "blobdiff_plain" => \&git_blobdiff_plain,
 342         "blob" => \&git_blob,
 343         "blob_plain" => \&git_blob_plain,
 344         "commitdiff" => \&git_commitdiff,
 345         "commitdiff_plain" => \&git_commitdiff_plain,
 346         "commit" => \&git_commit,
 347         "heads" => \&git_heads,
 348         "history" => \&git_history,
 349         "log" => \&git_log,
 350         "rss" => \&git_rss,
 351         "search" => \&git_search,
 352         "shortlog" => \&git_shortlog,
 353         "summary" => \&git_summary,
 354         "tag" => \&git_tag,
 355         "tags" => \&git_tags,
 356         "tree" => \&git_tree,
 357         "snapshot" => \&git_snapshot,
 358         # those below don't need $project
 359         "opml" => \&git_opml,
 360         "project_list" => \&git_project_list,
 361         "project_index" => \&git_project_index,
 362 );
 363
 364 if (defined $project) {
 365         $action ||= 'summary';
 366 } else {
 367         $action ||= 'project_list';
 368 }
 369 if (!defined($actions{$action})) {
 370         die_error(undef, "Unknown action");
 371 }
 372 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 373     !$project) {
 374         die_error(undef, "Project needed");
 375 }
 376 $actions{$action}->();
 377 exit;
 378
 379 ## ======================================================================
 380 ## action links
 381
 382 sub href(%) {
 383         my %params = @_;
 384
 385         my @mapping = (
 386                 project => "p",
 387                 action => "a",
 388                 file_name => "f",
 389                 file_parent => "fp",
 390                 hash => "h",
 391                 hash_parent => "hp",
 392                 hash_base => "hb",
 393                 hash_parent_base => "hpb",
 394                 page => "pg",
 395                 order => "o",
 396                 searchtext => "s",
 397         );
 398         my %mapping = @mapping;
 399
 400         $params{'project'} = $project unless exists $params{'project'};
 401
 402         my @result = ();
 403         for (my $i = 0; $i < @mapping; $i += 2) {
 404                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 405                 if (defined $params{$name}) {
 406                         push @result, $symbol . "=" . esc_param($params{$name});
 407                 }
 408         }
 409         return "$my_uri?" . join(';', @result);
 410 }
 411
 412
 413 ## ======================================================================
 414 ## validation, quoting/unquoting and escaping
 415
 416 sub validate_pathname {
 417         my $input = shift || return undef;
 418
 419         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 420         # at the beginning, at the end, and between slashes.
 421         # also this catches doubled slashes
 422         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 423                 return undef;
 424         }
 425         # no null characters
 426         if ($input =~ m!\0!) {
 427                 return undef;
 428         }
 429         return $input;
 430 }
 431
 432 sub validate_refname {
 433         my $input = shift || return undef;
 434
 435         # textual hashes are O.K.
 436         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 437                 return $input;
 438         }
 439         # it must be correct pathname
 440         $input = validate_pathname($input)
 441                 or return undef;
 442         # restrictions on ref name according to git-check-ref-format
 443         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 444                 return undef;
 445         }
 446         return $input;
 447 }
 448
 449 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 450 sub to_utf8 {
 451         my $str = shift;
 452         return decode("utf8", $str, Encode::FB_DEFAULT);
 453 }
 454
 455 # quote unsafe chars, but keep the slash, even when it's not
 456 # correct, but quoted slashes look too horrible in bookmarks
 457 sub esc_param {
 458         my $str = shift;
 459         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 460         $str =~ s/\+/%2B/g;
 461         $str =~ s/ /\+/g;
 462         return $str;
 463 }
 464
 465 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 466 sub esc_url {
 467         my $str = shift;
 468         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 469         $str =~ s/\+/%2B/g;
 470         $str =~ s/ /\+/g;
 471         return $str;
 472 }
 473
 474 # replace invalid utf8 character with SUBSTITUTION sequence
 475 sub esc_html {
 476         my $str = shift;
 477         $str = to_utf8($str);
 478         $str = escapeHTML($str);
 479         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 480         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 481         return $str;
 482 }
 483
 484 # git may return quoted and escaped filenames
 485 sub unquote {
 486         my $str = shift;
 487         if ($str =~ m/^"(.*)"$/) {
 488                 $str = $1;
 489                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 490         }
 491         return $str;
 492 }
 493
 494 # escape tabs (convert tabs to spaces)
 495 sub untabify {
 496         my $line = shift;
 497
 498         while ((my $pos = index($line, "\t")) != -1) {
 499                 if (my $count = (8 - ($pos % 8))) {
 500                         my $spaces = ' ' x $count;
 501                         $line =~ s/\t/$spaces/;
 502                 }
 503         }
 504
 505         return $line;
 506 }
 507
 508 sub project_in_list {
 509         my $project = shift;
 510         my @list = git_get_projects_list();
 511         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 512 }
 513
 514 ## ----------------------------------------------------------------------
 515 ## HTML aware string manipulation
 516
 517 sub chop_str {
 518         my $str = shift;
 519         my $len = shift;
 520         my $add_len = shift || 10;
 521
 522         # allow only $len chars, but don't cut a word if it would fit in $add_len
 523         # if it doesn't fit, cut it if it's still longer than the dots we would add
 524         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 525         my $body = $1;
 526         my $tail = $2;
 527         if (length($tail) > 4) {
 528                 $tail = " ...";
 529                 $body =~ s/&[^;]*$//; # remove chopped character entities
 530         }
 531         return "$body$tail";
 532 }
 533
 534 ## ----------------------------------------------------------------------
 535 ## functions returning short strings
 536
 537 # CSS class for given age value (in seconds)
 538 sub age_class {
 539         my $age = shift;
 540
 541         if ($age < 60*60*2) {
 542                 return "age0";
 543         } elsif ($age < 60*60*24*2) {
 544                 return "age1";
 545         } else {
 546                 return "age2";
 547         }
 548 }
 549
 550 # convert age in seconds to "nn units ago" string
 551 sub age_string {
 552         my $age = shift;
 553         my $age_str;
 554
 555         if ($age > 60*60*24*365*2) {
 556                 $age_str = (int $age/60/60/24/365);
 557                 $age_str .= " years ago";
 558         } elsif ($age > 60*60*24*(365/12)*2) {
 559                 $age_str = int $age/60/60/24/(365/12);
 560                 $age_str .= " months ago";
 561         } elsif ($age > 60*60*24*7*2) {
 562                 $age_str = int $age/60/60/24/7;
 563                 $age_str .= " weeks ago";
 564         } elsif ($age > 60*60*24*2) {
 565                 $age_str = int $age/60/60/24;
 566                 $age_str .= " days ago";
 567         } elsif ($age > 60*60*2) {
 568                 $age_str = int $age/60/60;
 569                 $age_str .= " hours ago";
 570         } elsif ($age > 60*2) {
 571                 $age_str = int $age/60;
 572                 $age_str .= " min ago";
 573         } elsif ($age > 2) {
 574                 $age_str = int $age;
 575                 $age_str .= " sec ago";
 576         } else {
 577                 $age_str .= " right now";
 578         }
 579         return $age_str;
 580 }
 581
 582 # convert file mode in octal to symbolic file mode string
 583 sub mode_str {
 584         my $mode = oct shift;
 585
 586         if (S_ISDIR($mode & S_IFMT)) {
 587                 return 'drwxr-xr-x';
 588         } elsif (S_ISLNK($mode)) {
 589                 return 'lrwxrwxrwx';
 590         } elsif (S_ISREG($mode)) {
 591                 # git cares only about the executable bit
 592                 if ($mode & S_IXUSR) {
 593                         return '-rwxr-xr-x';
 594                 } else {
 595                         return '-rw-r--r--';
 596                 };
 597         } else {
 598                 return '----------';
 599         }
 600 }
 601
 602 # convert file mode in octal to file type string
 603 sub file_type {
 604         my $mode = shift;
 605
 606         if ($mode !~ m/^[0-7]+$/) {
 607                 return $mode;
 608         } else {
 609                 $mode = oct $mode;
 610         }
 611
 612         if (S_ISDIR($mode & S_IFMT)) {
 613                 return "directory";
 614         } elsif (S_ISLNK($mode)) {
 615                 return "symlink";
 616         } elsif (S_ISREG($mode)) {
 617                 return "file";
 618         } else {
 619                 return "unknown";
 620         }
 621 }
 622
 623 ## ----------------------------------------------------------------------
 624 ## functions returning short HTML fragments, or transforming HTML fragments
 625 ## which don't beling to other sections
 626
 627 # format line of commit message or tag comment
 628 sub format_log_line_html {
 629         my $line = shift;
 630
 631         $line = esc_html($line);
 632         $line =~ s/ /&nbsp;/g;
 633         if ($line =~ m/([0-9a-fA-F]{40})/) {
 634                 my $hash_text = $1;
 635                 if (git_get_type($hash_text) eq "commit") {
 636                         my $link =
 637                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 638                                         -class => "text"}, $hash_text);
 639                         $line =~ s/$hash_text/$link/;
 640                 }
 641         }
 642         return $line;
 643 }
 644
 645 # format marker of refs pointing to given object
 646 sub format_ref_marker {
 647         my ($refs, $id) = @_;
 648         my $markers = '';
 649
 650         if (defined $refs->{$id}) {
 651                 foreach my $ref (@{$refs->{$id}}) {
 652                         my ($type, $name) = qw();
 653                         # e.g. tags/v2.6.11 or heads/next
 654                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 655                                 $type = $1;
 656                                 $name = $2;
 657                         } else {
 658                                 $type = "ref";
 659                                 $name = $ref;
 660                         }
 661
 662                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 663                 }
 664         }
 665
 666         if ($markers) {
 667                 return ' <span class="refs">'. $markers . '</span>';
 668         } else {
 669                 return "";
 670         }
 671 }
 672
 673 # format, perhaps shortened and with markers, title line
 674 sub format_subject_html {
 675         my ($long, $short, $href, $extra) = @_;
 676         $extra = '' unless defined($extra);
 677
 678         if (length($short) < length($long)) {
 679                 return $cgi->a({-href => $href, -class => "list subject",
 680                                 -title => to_utf8($long)},
 681                        esc_html($short) . $extra);
 682         } else {
 683                 return $cgi->a({-href => $href, -class => "list subject"},
 684                        esc_html($long)  . $extra);
 685         }
 686 }
 687
 688 sub format_diff_line {
 689         my $line = shift;
 690         my $char = substr($line, 0, 1);
 691         my $diff_class = "";
 692
 693         chomp $line;
 694
 695         if ($char eq '+') {
 696                 $diff_class = " add";
 697         } elsif ($char eq "-") {
 698                 $diff_class = " rem";
 699         } elsif ($char eq "@") {
 700                 $diff_class = " chunk_header";
 701         } elsif ($char eq "\\") {
 702                 $diff_class = " incomplete";
 703         }
 704         $line = untabify($line);
 705         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 706 }
 707
 708 ## ----------------------------------------------------------------------
 709 ## git utility subroutines, invoking git commands
 710
 711 # returns path to the core git executable and the --git-dir parameter as list
 712 sub git_cmd {
 713         return $GIT, '--git-dir='.$git_dir;
 714 }
 715
 716 # returns path to the core git executable and the --git-dir parameter as string
 717 sub git_cmd_str {
 718         return join(' ', git_cmd());
 719 }
 720
 721 # get HEAD ref of given project as hash
 722 sub git_get_head_hash {
 723         my $project = shift;
 724         my $o_git_dir = $git_dir;
 725         my $retval = undef;
 726         $git_dir = "$projectroot/$project";
 727         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 728                 my $head = <$fd>;
 729                 close $fd;
 730                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 731                         $retval = $1;
 732                 }
 733         }
 734         if (defined $o_git_dir) {
 735                 $git_dir = $o_git_dir;
 736         }
 737         return $retval;
 738 }
 739
 740 # get type of given object
 741 sub git_get_type {
 742         my $hash = shift;
 743
 744         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 745         my $type = <$fd>;
 746         close $fd or return;
 747         chomp $type;
 748         return $type;
 749 }
 750
 751 sub git_get_project_config {
 752         my ($key, $type) = @_;
 753
 754         return unless ($key);
 755         $key =~ s/^gitweb\.//;
 756         return if ($key =~ m/\W/);
 757
 758         my @x = (git_cmd(), 'repo-config');
 759         if (defined $type) { push @x, $type; }
 760         push @x, "--get";
 761         push @x, "gitweb.$key";
 762         my $val = qx(@x);
 763         chomp $val;
 764         return ($val);
 765 }
 766
 767 # get hash of given path at given ref
 768 sub git_get_hash_by_path {
 769         my $base = shift;
 770         my $path = shift || return undef;
 771         my $type = shift;
 772
 773         $path =~ s,/+$,,;
 774
 775         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 776                 or die_error(undef, "Open git-ls-tree failed");
 777         my $line = <$fd>;
 778         close $fd or return undef;
 779
 780         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 781         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 782         if (defined $type && $type ne $2) {
 783                 # type doesn't match
 784                 return undef;
 785         }
 786         return $3;
 787 }
 788
 789 ## ......................................................................
 790 ## git utility functions, directly accessing git repository
 791
 792 sub git_get_project_description {
 793         my $path = shift;
 794
 795         open my $fd, "$projectroot/$path/description" or return undef;
 796         my $descr = <$fd>;
 797         close $fd;
 798         chomp $descr;
 799         return $descr;
 800 }
 801
 802 sub git_get_project_url_list {
 803         my $path = shift;
 804
 805         open my $fd, "$projectroot/$path/cloneurl" or return;
 806         my @git_project_url_list = map { chomp; $_ } <$fd>;
 807         close $fd;
 808
 809         return wantarray ? @git_project_url_list : \@git_project_url_list;
 810 }
 811
 812 sub git_get_projects_list {
 813         my @list;
 814
 815         if (-d $projects_list) {
 816                 # search in directory
 817                 my $dir = $projects_list;
 818                 my $pfxlen = length("$dir");
 819
 820                 File::Find::find({
 821                         follow_fast => 1, # follow symbolic links
 822                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 823                         wanted => sub {
 824                                 # skip project-list toplevel, if we get it.
 825                                 return if (m!^[/.]$!);
 826                                 # only directories can be git repositories
 827                                 return unless (-d $_);
 828
 829                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 830                                 # we check related file in $projectroot
 831                                 if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 832                                     -e "$projectroot/$subdir/$export_ok")) {
 833                                         push @list, { path => $subdir };
 834                                         $File::Find::prune = 1;
 835                                 }
 836                         },
 837                 }, "$dir");
 838
 839         } elsif (-f $projects_list) {
 840                 # read from file(url-encoded):
 841                 # 'git%2Fgit.git Linus+Torvalds'
 842                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 843                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 844                 open my ($fd), $projects_list or return;
 845                 while (my $line = <$fd>) {
 846                         chomp $line;
 847                         my ($path, $owner) = split ' ', $line;
 848                         $path = unescape($path);
 849                         $owner = unescape($owner);
 850                         if (!defined $path) {
 851                                 next;
 852                         }
 853                         if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 854                             -e "$projectroot/$path/$export_ok")) {
 855                                 my $pr = {
 856                                         path => $path,
 857                                         owner => to_utf8($owner),
 858                                 };
 859                                 push @list, $pr
 860                         }
 861                 }
 862                 close $fd;
 863         }
 864         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 865         return @list;
 866 }
 867
 868 sub git_get_project_owner {
 869         my $project = shift;
 870         my $owner;
 871
 872         return undef unless $project;
 873
 874         # read from file (url-encoded):
 875         # 'git%2Fgit.git Linus+Torvalds'
 876         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 877         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 878         if (-f $projects_list) {
 879                 open (my $fd , $projects_list);
 880                 while (my $line = <$fd>) {
 881                         chomp $line;
 882                         my ($pr, $ow) = split ' ', $line;
 883                         $pr = unescape($pr);
 884                         $ow = unescape($ow);
 885                         if ($pr eq $project) {
 886                                 $owner = to_utf8($ow);
 887                                 last;
 888                         }
 889                 }
 890                 close $fd;
 891         }
 892         if (!defined $owner) {
 893                 $owner = get_file_owner("$projectroot/$project");
 894         }
 895
 896         return $owner;
 897 }
 898
 899 sub git_get_references {
 900         my $type = shift || "";
 901         my %refs;
 902         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 903         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 904         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 905                 or return;
 906
 907         while (my $line = <$fd>) {
 908                 chomp $line;
 909                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 910                         if (defined $refs{$1}) {
 911                                 push @{$refs{$1}}, $2;
 912                         } else {
 913                                 $refs{$1} = [ $2 ];
 914                         }
 915                 }
 916         }
 917         close $fd or return;
 918         return \%refs;
 919 }
 920
 921 sub git_get_rev_name_tags {
 922         my $hash = shift || return undef;
 923
 924         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 925                 or return;
 926         my $name_rev = <$fd>;
 927         close $fd;
 928
 929         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 930                 return $1;
 931         } else {
 932                 # catches also '$hash undefined' output
 933                 return undef;
 934         }
 935 }
 936
 937 ## ----------------------------------------------------------------------
 938 ## parse to hash functions
 939
 940 sub parse_date {
 941         my $epoch = shift;
 942         my $tz = shift || "-0000";
 943
 944         my %date;
 945         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 946         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 947         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 948         $date{'hour'} = $hour;
 949         $date{'minute'} = $min;
 950         $date{'mday'} = $mday;
 951         $date{'day'} = $days[$wday];
 952         $date{'month'} = $months[$mon];
 953         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 954                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 955         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 956                              $mday, $months[$mon], $hour ,$min;
 957
 958         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 959         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 960         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 961         $date{'hour_local'} = $hour;
 962         $date{'minute_local'} = $min;
 963         $date{'tz_local'} = $tz;
 964         return %date;
 965 }
 966
 967 sub parse_tag {
 968         my $tag_id = shift;
 969         my %tag;
 970         my @comment;
 971
 972         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 973         $tag{'id'} = $tag_id;
 974         while (my $line = <$fd>) {
 975                 chomp $line;
 976                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 977                         $tag{'object'} = $1;
 978                 } elsif ($line =~ m/^type (.+)$/) {
 979                         $tag{'type'} = $1;
 980                 } elsif ($line =~ m/^tag (.+)$/) {
 981                         $tag{'name'} = $1;
 982                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 983                         $tag{'author'} = $1;
 984                         $tag{'epoch'} = $2;
 985                         $tag{'tz'} = $3;
 986                 } elsif ($line =~ m/--BEGIN/) {
 987                         push @comment, $line;
 988                         last;
 989                 } elsif ($line eq "") {
 990                         last;
 991                 }
 992         }
 993         push @comment, <$fd>;
 994         $tag{'comment'} = \@comment;
 995         close $fd or return;
 996         if (!defined $tag{'name'}) {
 997                 return
 998         };
 999         return %tag
1000 }
1001
1002 sub parse_commit {
1003         my $commit_id = shift;
1004         my $commit_text = shift;
1005
1006         my @commit_lines;
1007         my %co;
1008
1009         if (defined $commit_text) {
1010                 @commit_lines = @$commit_text;
1011         } else {
1012                 local $/ = "\0";
1013                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1014                         or return;
1015                 @commit_lines = split '\n', <$fd>;
1016                 close $fd or return;
1017                 pop @commit_lines;
1018         }
1019         my $header = shift @commit_lines;
1020         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1021                 return;
1022         }
1023         ($co{'id'}, my @parents) = split ' ', $header;
1024         $co{'parents'} = \@parents;
1025         $co{'parent'} = $parents[0];
1026         while (my $line = shift @commit_lines) {
1027                 last if $line eq "\n";
1028                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1029                         $co{'tree'} = $1;
1030                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1031                         $co{'author'} = $1;
1032                         $co{'author_epoch'} = $2;
1033                         $co{'author_tz'} = $3;
1034                         if ($co{'author'} =~ m/^([^<]+) </) {
1035                                 $co{'author_name'} = $1;
1036                         } else {
1037                                 $co{'author_name'} = $co{'author'};
1038                         }
1039                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1040                         $co{'committer'} = $1;
1041                         $co{'committer_epoch'} = $2;
1042                         $co{'committer_tz'} = $3;
1043                         $co{'committer_name'} = $co{'committer'};
1044                         $co{'committer_name'} =~ s/ <.*//;
1045                 }
1046         }
1047         if (!defined $co{'tree'}) {
1048                 return;
1049         };
1050
1051         foreach my $title (@commit_lines) {
1052                 $title =~ s/^    //;
1053                 if ($title ne "") {
1054                         $co{'title'} = chop_str($title, 80, 5);
1055                         # remove leading stuff of merges to make the interesting part visible
1056                         if (length($title) > 50) {
1057                                 $title =~ s/^Automatic //;
1058                                 $title =~ s/^merge (of|with) /Merge ... /i;
1059                                 if (length($title) > 50) {
1060                                         $title =~ s/(http|rsync):\/\///;
1061                                 }
1062                                 if (length($title) > 50) {
1063                                         $title =~ s/(master|www|rsync)\.//;
1064                                 }
1065                                 if (length($title) > 50) {
1066                                         $title =~ s/kernel.org:?//;
1067                                 }
1068                                 if (length($title) > 50) {
1069                                         $title =~ s/\/pub\/scm//;
1070                                 }
1071                         }
1072                         $co{'title_short'} = chop_str($title, 50, 5);
1073                         last;
1074                 }
1075         }
1076         if ($co{'title'} eq "") {
1077                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1078         }
1079         # remove added spaces
1080         foreach my $line (@commit_lines) {
1081                 $line =~ s/^    //;
1082         }
1083         $co{'comment'} = \@commit_lines;
1084
1085         my $age = time - $co{'committer_epoch'};
1086         $co{'age'} = $age;
1087         $co{'age_string'} = age_string($age);
1088         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1089         if ($age > 60*60*24*7*2) {
1090                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1091                 $co{'age_string_age'} = $co{'age_string'};
1092         } else {
1093                 $co{'age_string_date'} = $co{'age_string'};
1094                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1095         }
1096         return %co;
1097 }
1098
1099 # parse ref from ref_file, given by ref_id, with given type
1100 sub parse_ref {
1101         my $ref_file = shift;
1102         my $ref_id = shift;
1103         my $type = shift || git_get_type($ref_id);
1104         my %ref_item;
1105
1106         $ref_item{'type'} = $type;
1107         $ref_item{'id'} = $ref_id;
1108         $ref_item{'epoch'} = 0;
1109         $ref_item{'age'} = "unknown";
1110         if ($type eq "tag") {
1111                 my %tag = parse_tag($ref_id);
1112                 $ref_item{'comment'} = $tag{'comment'};
1113                 if ($tag{'type'} eq "commit") {
1114                         my %co = parse_commit($tag{'object'});
1115                         $ref_item{'epoch'} = $co{'committer_epoch'};
1116                         $ref_item{'age'} = $co{'age_string'};
1117                 } elsif (defined($tag{'epoch'})) {
1118                         my $age = time - $tag{'epoch'};
1119                         $ref_item{'epoch'} = $tag{'epoch'};
1120                         $ref_item{'age'} = age_string($age);
1121                 }
1122                 $ref_item{'reftype'} = $tag{'type'};
1123                 $ref_item{'name'} = $tag{'name'};
1124                 $ref_item{'refid'} = $tag{'object'};
1125         } elsif ($type eq "commit"){
1126                 my %co = parse_commit($ref_id);
1127                 $ref_item{'reftype'} = "commit";
1128                 $ref_item{'name'} = $ref_file;
1129                 $ref_item{'title'} = $co{'title'};
1130                 $ref_item{'refid'} = $ref_id;
1131                 $ref_item{'epoch'} = $co{'committer_epoch'};
1132                 $ref_item{'age'} = $co{'age_string'};
1133         } else {
1134                 $ref_item{'reftype'} = $type;
1135                 $ref_item{'name'} = $ref_file;
1136                 $ref_item{'refid'} = $ref_id;
1137         }
1138
1139         return %ref_item;
1140 }
1141
1142 # parse line of git-diff-tree "raw" output
1143 sub parse_difftree_raw_line {
1144         my $line = shift;
1145         my %res;
1146
1147         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1148         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1149         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1150                 $res{'from_mode'} = $1;
1151                 $res{'to_mode'} = $2;
1152                 $res{'from_id'} = $3;
1153                 $res{'to_id'} = $4;
1154                 $res{'status'} = $5;
1155                 $res{'similarity'} = $6;
1156                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1157                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1158                 } else {
1159                         $res{'file'} = unquote($7);
1160                 }
1161         }
1162         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1163         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1164                 $res{'commit'} = $1;
1165         }
1166
1167         return wantarray ? %res : \%res;
1168 }
1169
1170 # parse line of git-ls-tree output
1171 sub parse_ls_tree_line ($;%) {
1172         my $line = shift;
1173         my %opts = @_;
1174         my %res;
1175
1176         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1177         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1178
1179         $res{'mode'} = $1;
1180         $res{'type'} = $2;
1181         $res{'hash'} = $3;
1182         if ($opts{'-z'}) {
1183                 $res{'name'} = $4;
1184         } else {
1185                 $res{'name'} = unquote($4);
1186         }
1187
1188         return wantarray ? %res : \%res;
1189 }
1190
1191 ## ......................................................................
1192 ## parse to array of hashes functions
1193
1194 sub git_get_refs_list {
1195         my $type = shift || "";
1196         my %refs;
1197         my @reflist;
1198
1199         my @refs;
1200         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1201                 or return;
1202         while (my $line = <$fd>) {
1203                 chomp $line;
1204                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1205                         if (defined $refs{$1}) {
1206                                 push @{$refs{$1}}, $2;
1207                         } else {
1208                                 $refs{$1} = [ $2 ];
1209                         }
1210
1211                         if (! $4) { # unpeeled, direct reference
1212                                 push @refs, { hash => $1, name => $3 }; # without type
1213                         } elsif ($3 eq $refs[-1]{'name'}) {
1214                                 # most likely a tag is followed by its peeled
1215                                 # (deref) one, and when that happens we know the
1216                                 # previous one was of type 'tag'.
1217                                 $refs[-1]{'type'} = "tag";
1218                         }
1219                 }
1220         }
1221         close $fd;
1222
1223         foreach my $ref (@refs) {
1224                 my $ref_file = $ref->{'name'};
1225                 my $ref_id   = $ref->{'hash'};
1226
1227                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1228                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1229
1230                 push @reflist, \%ref_item;
1231         }
1232         # sort refs by age
1233         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1234         return (\@reflist, \%refs);
1235 }
1236
1237 ## ----------------------------------------------------------------------
1238 ## filesystem-related functions
1239
1240 sub get_file_owner {
1241         my $path = shift;
1242
1243         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1244         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1245         if (!defined $gcos) {
1246                 return undef;
1247         }
1248         my $owner = $gcos;
1249         $owner =~ s/[,;].*$//;
1250         return to_utf8($owner);
1251 }
1252
1253 ## ......................................................................
1254 ## mimetype related functions
1255
1256 sub mimetype_guess_file {
1257         my $filename = shift;
1258         my $mimemap = shift;
1259         -r $mimemap or return undef;
1260
1261         my %mimemap;
1262         open(MIME, $mimemap) or return undef;
1263         while (<MIME>) {
1264                 next if m/^#/; # skip comments
1265                 my ($mime, $exts) = split(/\t+/);
1266                 if (defined $exts) {
1267                         my @exts = split(/\s+/, $exts);
1268                         foreach my $ext (@exts) {
1269                                 $mimemap{$ext} = $mime;
1270                         }
1271                 }
1272         }
1273         close(MIME);
1274
1275         $filename =~ /\.([^.]*)$/;
1276         return $mimemap{$1};
1277 }
1278
1279 sub mimetype_guess {
1280         my $filename = shift;
1281         my $mime;
1282         $filename =~ /\./ or return undef;
1283
1284         if ($mimetypes_file) {
1285                 my $file = $mimetypes_file;
1286                 if ($file !~ m!^/!) { # if it is relative path
1287                         # it is relative to project
1288                         $file = "$projectroot/$project/$file";
1289                 }
1290                 $mime = mimetype_guess_file($filename, $file);
1291         }
1292         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1293         return $mime;
1294 }
1295
1296 sub blob_mimetype {
1297         my $fd = shift;
1298         my $filename = shift;
1299
1300         if ($filename) {
1301                 my $mime = mimetype_guess($filename);
1302                 $mime and return $mime;
1303         }
1304
1305         # just in case
1306         return $default_blob_plain_mimetype unless $fd;
1307
1308         if (-T $fd) {
1309                 return 'text/plain' .
1310                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1311         } elsif (! $filename) {
1312                 return 'application/octet-stream';
1313         } elsif ($filename =~ m/\.png$/i) {
1314                 return 'image/png';
1315         } elsif ($filename =~ m/\.gif$/i) {
1316                 return 'image/gif';
1317         } elsif ($filename =~ m/\.jpe?g$/i) {
1318                 return 'image/jpeg';
1319         } else {
1320                 return 'application/octet-stream';
1321         }
1322 }
1323
1324 ## ======================================================================
1325 ## functions printing HTML: header, footer, error page
1326
1327 sub git_header_html {
1328         my $status = shift || "200 OK";
1329         my $expires = shift;
1330
1331         my $title = "$site_name git";
1332         if (defined $project) {
1333                 $title .= " - $project";
1334                 if (defined $action) {
1335                         $title .= "/$action";
1336                         if (defined $file_name) {
1337                                 $title .= " - " . esc_html($file_name);
1338                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1339                                         $title .= "/";
1340                                 }
1341                         }
1342                 }
1343         }
1344         my $content_type;
1345         # require explicit support from the UA if we are to send the page as
1346         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1347         # we have to do this because MSIE sometimes globs '*/*', pretending to
1348         # support xhtml+xml but choking when it gets what it asked for.
1349         if (defined $cgi->http('HTTP_ACCEPT') &&
1350             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1351             $cgi->Accept('application/xhtml+xml') != 0) {
1352                 $content_type = 'application/xhtml+xml';
1353         } else {
1354                 $content_type = 'text/html';
1355         }
1356         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1357                            -status=> $status, -expires => $expires);
1358         print <<EOF;
1359 <?xml version="1.0" encoding="utf-8"?>
1360 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1361 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1362 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1363 <!-- git core binaries version $git_version -->
1364 <head>
1365 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1366 <meta name="generator" content="gitweb/$version git/$git_version"/>
1367 <meta name="robots" content="index, nofollow"/>
1368 <title>$title</title>
1369 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1370 EOF
1371         if (defined $project) {
1372                 printf('<link rel="alternate" title="%s log" '.
1373                        'href="%s" type="application/rss+xml"/>'."\n",
1374                        esc_param($project), href(action=>"rss"));
1375         } else {
1376                 printf('<link rel="alternate" title="%s projects list" '.
1377                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1378                        $site_name, href(project=>undef, action=>"project_index"));
1379                 printf('<link rel="alternate" title="%s projects logs" '.
1380                        'href="%s" type="text/x-opml"/>'."\n",
1381                        $site_name, href(project=>undef, action=>"opml"));
1382         }
1383         if (defined $favicon) {
1384                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1385         }
1386
1387         print "</head>\n" .
1388               "<body>\n" .
1389               "<div class=\"page_header\">\n" .
1390               $cgi->a({-href => esc_url($logo_url),
1391                        -title => $logo_label},
1392                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1393         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1394         if (defined $project) {
1395                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1396                 if (defined $action) {
1397                         print " / $action";
1398                 }
1399                 print "\n";
1400                 if (!defined $searchtext) {
1401                         $searchtext = "";
1402                 }
1403                 my $search_hash;
1404                 if (defined $hash_base) {
1405                         $search_hash = $hash_base;
1406                 } elsif (defined $hash) {
1407                         $search_hash = $hash;
1408                 } else {
1409                         $search_hash = "HEAD";
1410                 }
1411                 $cgi->param("a", "search");
1412                 $cgi->param("h", $search_hash);
1413                 print $cgi->startform(-method => "get", -action => $my_uri) .
1414                       "<div class=\"search\">\n" .
1415                       $cgi->hidden(-name => "p") . "\n" .
1416                       $cgi->hidden(-name => "a") . "\n" .
1417                       $cgi->hidden(-name => "h") . "\n" .
1418                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1419                       "</div>" .
1420                       $cgi->end_form() . "\n";
1421         }
1422         print "</div>\n";
1423 }
1424
1425 sub git_footer_html {
1426         print "<div class=\"page_footer\">\n";
1427         if (defined $project) {
1428                 my $descr = git_get_project_description($project);
1429                 if (defined $descr) {
1430                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1431                 }
1432                 print $cgi->a({-href => href(action=>"rss"),
1433                               -class => "rss_logo"}, "RSS") . "\n";
1434         } else {
1435                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1436                               -class => "rss_logo"}, "OPML") . " ";
1437                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1438                               -class => "rss_logo"}, "TXT") . "\n";
1439         }
1440         print "</div>\n" .
1441               "</body>\n" .
1442               "</html>";
1443 }
1444
1445 sub die_error {
1446         my $status = shift || "403 Forbidden";
1447         my $error = shift || "Malformed query, file missing or permission denied";
1448
1449         git_header_html($status);
1450         print <<EOF;
1451 <div class="page_body">
1452 <br /><br />
1453 $status - $error
1454 <br />
1455 </div>
1456 EOF
1457         git_footer_html();
1458         exit;
1459 }
1460
1461 ## ----------------------------------------------------------------------
1462 ## functions printing or outputting HTML: navigation
1463
1464 sub git_print_page_nav {
1465         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1466         $extra = '' if !defined $extra; # pager or formats
1467
1468         my @navs = qw(summary shortlog log commit commitdiff tree);
1469         if ($suppress) {
1470                 @navs = grep { $_ ne $suppress } @navs;
1471         }
1472
1473         my %arg = map { $_ => {action=>$_} } @navs;
1474         if (defined $head) {
1475                 for (qw(commit commitdiff)) {
1476                         $arg{$_}{hash} = $head;
1477                 }
1478                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1479                         for (qw(shortlog log)) {
1480                                 $arg{$_}{hash} = $head;
1481                         }
1482                 }
1483         }
1484         $arg{tree}{hash} = $treehead if defined $treehead;
1485         $arg{tree}{hash_base} = $treebase if defined $treebase;
1486
1487         print "<div class=\"page_nav\">\n" .
1488                 (join " | ",
1489                  map { $_ eq $current ?
1490                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1491                  } @navs);
1492         print "<br/>\n$extra<br/>\n" .
1493               "</div>\n";
1494 }
1495
1496 sub format_paging_nav {
1497         my ($action, $hash, $head, $page, $nrevs) = @_;
1498         my $paging_nav;
1499
1500
1501         if ($hash ne $head || $page) {
1502                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1503         } else {
1504                 $paging_nav .= "HEAD";
1505         }
1506
1507         if ($page > 0) {
1508                 $paging_nav .= " &sdot; " .
1509                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1510                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1511         } else {
1512                 $paging_nav .= " &sdot; prev";
1513         }
1514
1515         if ($nrevs >= (100 * ($page+1)-1)) {
1516                 $paging_nav .= " &sdot; " .
1517                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1518                                  -accesskey => "n", -title => "Alt-n"}, "next");
1519         } else {
1520                 $paging_nav .= " &sdot; next";
1521         }
1522
1523         return $paging_nav;
1524 }
1525
1526 ## ......................................................................
1527 ## functions printing or outputting HTML: div
1528
1529 sub git_print_header_div {
1530         my ($action, $title, $hash, $hash_base) = @_;
1531         my %args = ();
1532
1533         $args{action} = $action;
1534         $args{hash} = $hash if $hash;
1535         $args{hash_base} = $hash_base if $hash_base;
1536
1537         print "<div class=\"header\">\n" .
1538               $cgi->a({-href => href(%args), -class => "title"},
1539               $title ? $title : $action) .
1540               "\n</div>\n";
1541 }
1542
1543 #sub git_print_authorship (\%) {
1544 sub git_print_authorship {
1545         my $co = shift;
1546
1547         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1548         print "<div class=\"author_date\">" .
1549               esc_html($co->{'author_name'}) .
1550               " [$ad{'rfc2822'}";
1551         if ($ad{'hour_local'} < 6) {
1552                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1553                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1554         } else {
1555                 printf(" (%02d:%02d %s)",
1556                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1557         }
1558         print "]</div>\n";
1559 }
1560
1561 sub git_print_page_path {
1562         my $name = shift;
1563         my $type = shift;
1564         my $hb = shift;
1565
1566         if (!defined $name) {
1567                 print "<div class=\"page_path\">/</div>\n";
1568         } else {
1569                 my @dirname = split '/', $name;
1570                 my $basename = pop @dirname;
1571                 my $fullname = '';
1572
1573                 print "<div class=\"page_path\">";
1574                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1575                               -title => 'tree root'}, "[$project]");
1576                 print " / ";
1577                 foreach my $dir (@dirname) {
1578                         $fullname .= ($fullname ? '/' : '') . $dir;
1579                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1580                                                      hash_base=>$hb),
1581                                       -title => $fullname}, esc_html($dir));
1582                         print " / ";
1583                 }
1584                 if (defined $type && $type eq 'blob') {
1585                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1586                                                      hash_base=>$hb),
1587                                       -title => $name}, esc_html($basename));
1588                 } elsif (defined $type && $type eq 'tree') {
1589                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1590                                                      hash_base=>$hb),
1591                                       -title => $name}, esc_html($basename));
1592                 } else {
1593                         print esc_html($basename);
1594                 }
1595                 print "<br/></div>\n";
1596         }
1597 }
1598
1599 # sub git_print_log (\@;%) {
1600 sub git_print_log ($;%) {
1601         my $log = shift;
1602         my %opts = @_;
1603
1604         if ($opts{'-remove_title'}) {
1605                 # remove title, i.e. first line of log
1606                 shift @$log;
1607         }
1608         # remove leading empty lines
1609         while (defined $log->[0] && $log->[0] eq "") {
1610                 shift @$log;
1611         }
1612
1613         # print log
1614         my $signoff = 0;
1615         my $empty = 0;
1616         foreach my $line (@$log) {
1617                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1618                         $signoff = 1;
1619                         $empty = 0;
1620                         if (! $opts{'-remove_signoff'}) {
1621                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1622                                 next;
1623                         } else {
1624                                 # remove signoff lines
1625                                 next;
1626                         }
1627                 } else {
1628                         $signoff = 0;
1629                 }
1630
1631                 # print only one empty line
1632                 # do not print empty line after signoff
1633                 if ($line eq "") {
1634                         next if ($empty || $signoff);
1635                         $empty = 1;
1636                 } else {
1637                         $empty = 0;
1638                 }
1639
1640                 print format_log_line_html($line) . "<br/>\n";
1641         }
1642
1643         if ($opts{'-final_empty_line'}) {
1644                 # end with single empty line
1645                 print "<br/>\n" unless $empty;
1646         }
1647 }
1648
1649 sub git_print_simplified_log {
1650         my $log = shift;
1651         my $remove_title = shift;
1652
1653         git_print_log($log,
1654                 -final_empty_line=> 1,
1655                 -remove_title => $remove_title);
1656 }
1657
1658 # print tree entry (row of git_tree), but without encompassing <tr> element
1659 sub git_print_tree_entry {
1660         my ($t, $basedir, $hash_base, $have_blame) = @_;
1661
1662         my %base_key = ();
1663         $base_key{hash_base} = $hash_base if defined $hash_base;
1664
1665         # The format of a table row is: mode list link.  Where mode is
1666         # the mode of the entry, list is the name of the entry, an href,
1667         # and link is the action links of the entry.
1668
1669         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1670         if ($t->{'type'} eq "blob") {
1671                 print "<td class=\"list\">" .
1672                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1673                                                file_name=>"$basedir$t->{'name'}", %base_key),
1674                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1675                 print "<td class=\"link\">";
1676                 if ($have_blame) {
1677                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1678                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1679                                             "blame");
1680                 }
1681                 if (defined $hash_base) {
1682                         if ($have_blame) {
1683                                 print " | ";
1684                         }
1685                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1686                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1687                                       "history");
1688                 }
1689                 print " | " .
1690                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1691                                                file_name=>"$basedir$t->{'name'}")},
1692                                 "raw");
1693                 print "</td>\n";
1694
1695         } elsif ($t->{'type'} eq "tree") {
1696                 print "<td class=\"list\">";
1697                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1698                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1699                               esc_html($t->{'name'}));
1700                 print "</td>\n";
1701                 print "<td class=\"link\">";
1702                 if (defined $hash_base) {
1703                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1704                                                      file_name=>"$basedir$t->{'name'}")},
1705                                       "history");
1706                 }
1707                 print "</td>\n";
1708         }
1709 }
1710
1711 ## ......................................................................
1712 ## functions printing large fragments of HTML
1713
1714 sub git_difftree_body {
1715         my ($difftree, $hash, $parent) = @_;
1716
1717         print "<div class=\"list_head\">\n";
1718         if ($#{$difftree} > 10) {
1719                 print(($#{$difftree} + 1) . " files changed:\n");
1720         }
1721         print "</div>\n";
1722
1723         print "<table class=\"diff_tree\">\n";
1724         my $alternate = 1;
1725         my $patchno = 0;
1726         foreach my $line (@{$difftree}) {
1727                 my %diff = parse_difftree_raw_line($line);
1728
1729                 if ($alternate) {
1730                         print "<tr class=\"dark\">\n";
1731                 } else {
1732                         print "<tr class=\"light\">\n";
1733                 }
1734                 $alternate ^= 1;
1735
1736                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1737                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1738                 if ($diff{'to_mode'} ne ('0' x 6)) {
1739                         $to_mode_oct = oct $diff{'to_mode'};
1740                         if (S_ISREG($to_mode_oct)) { # only for regular file
1741                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1742                         }
1743                         $to_file_type = file_type($diff{'to_mode'});
1744                 }
1745                 if ($diff{'from_mode'} ne ('0' x 6)) {
1746                         $from_mode_oct = oct $diff{'from_mode'};
1747                         if (S_ISREG($to_mode_oct)) { # only for regular file
1748                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1749                         }
1750                         $from_file_type = file_type($diff{'from_mode'});
1751                 }
1752
1753                 if ($diff{'status'} eq "A") { # created
1754                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1755                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1756                         $mode_chng   .= "]</span>";
1757                         print "<td>";
1758                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1759                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1760                                       -class => "list"}, esc_html($diff{'file'}));
1761                         print "</td>\n";
1762                         print "<td>$mode_chng</td>\n";
1763                         print "<td class=\"link\">";
1764                         if ($action eq 'commitdiff') {
1765                                 # link to patch
1766                                 $patchno++;
1767                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1768                         }
1769                         print "</td>\n";
1770
1771                 } elsif ($diff{'status'} eq "D") { # deleted
1772                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1773                         print "<td>";
1774                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1775                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1776                                        -class => "list"}, esc_html($diff{'file'}));
1777                         print "</td>\n";
1778                         print "<td>$mode_chng</td>\n";
1779                         print "<td class=\"link\">";
1780                         if ($action eq 'commitdiff') {
1781                                 # link to patch
1782                                 $patchno++;
1783                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1784                                 print " | ";
1785                         }
1786                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1787                                                      file_name=>$diff{'file'})},
1788                                       "blame") . " | ";
1789                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1790                                                      file_name=>$diff{'file'})},
1791                                       "history");
1792                         print "</td>\n";
1793
1794                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1795                         my $mode_chnge = "";
1796                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1797                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1798                                 if ($from_file_type != $to_file_type) {
1799                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1800                                 }
1801                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1802                                         if ($from_mode_str && $to_mode_str) {
1803                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1804                                         } elsif ($to_mode_str) {
1805                                                 $mode_chnge .= " mode: $to_mode_str";
1806                                         }
1807                                 }
1808                                 $mode_chnge .= "]</span>\n";
1809                         }
1810                         print "<td>";
1811                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1812                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1813                                       -class => "list"}, esc_html($diff{'file'}));
1814                         print "</td>\n";
1815                         print "<td>$mode_chnge</td>\n";
1816                         print "<td class=\"link\">";
1817                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1818                                 if ($action eq 'commitdiff') {
1819                                         # link to patch
1820                                         $patchno++;
1821                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1822                                 } else {
1823                                         print $cgi->a({-href => href(action=>"blobdiff",
1824                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1825                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1826                                                                      file_name=>$diff{'file'})},
1827                                                       "diff");
1828                                 }
1829                                 print " | ";
1830                         }
1831                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1832                                                      file_name=>$diff{'file'})},
1833                                       "blame") . " | ";
1834                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1835                                                      file_name=>$diff{'file'})},
1836                                       "history");
1837                         print "</td>\n";
1838
1839                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1840                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1841                         my $nstatus = $status_name{$diff{'status'}};
1842                         my $mode_chng = "";
1843                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1844                                 # mode also for directories, so we cannot use $to_mode_str
1845                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1846                         }
1847                         print "<td>" .
1848                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1849                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1850                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1851                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1852                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1853                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1854                                       -class => "list"}, esc_html($diff{'from_file'})) .
1855                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1856                               "<td class=\"link\">";
1857                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1858                                 if ($action eq 'commitdiff') {
1859                                         # link to patch
1860                                         $patchno++;
1861                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1862                                 } else {
1863                                         print $cgi->a({-href => href(action=>"blobdiff",
1864                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1865                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1866                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1867                                                       "diff");
1868                                 }
1869                                 print " | ";
1870                         }
1871                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1872                                                      file_name=>$diff{'from_file'})},
1873                                       "blame") . " | ";
1874                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1875                                                     file_name=>$diff{'from_file'})},
1876                                       "history");
1877                         print "</td>\n";
1878
1879                 } # we should not encounter Unmerged (U) or Unknown (X) status
1880                 print "</tr>\n";
1881         }
1882         print "</table>\n";
1883 }
1884
1885 sub git_patchset_body {
1886         my ($fd, $difftree, $hash, $hash_parent) = @_;
1887
1888         my $patch_idx = 0;
1889         my $in_header = 0;
1890         my $patch_found = 0;
1891         my $diffinfo;
1892
1893         print "<div class=\"patchset\">\n";
1894
1895         LINE:
1896         while (my $patch_line = <$fd>) {
1897                 chomp $patch_line;
1898
1899                 if ($patch_line =~ m/^diff /) { # "git diff" header
1900                         # beginning of patch (in patchset)
1901                         if ($patch_found) {
1902                                 # close previous patch
1903                                 print "</div>\n"; # class="patch"
1904                         } else {
1905                                 # first patch in patchset
1906                                 $patch_found = 1;
1907                         }
1908                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1909
1910                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1911                                 $diffinfo = $difftree->[$patch_idx];
1912                         } else {
1913                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1914                         }
1915                         $patch_idx++;
1916
1917                         # for now, no extended header, hence we skip empty patches
1918                         # companion to  next LINE if $in_header;
1919                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1920                                 $in_header = 1;
1921                                 next LINE;
1922                         }
1923
1924                         if ($diffinfo->{'status'} eq "A") { # added
1925                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1926                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1927                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1928                                               $diffinfo->{'to_id'}) . " (new)" .
1929                                       "</div>\n"; # class="diff_info"
1930
1931                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1932                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1933                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1934                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1935                                               $diffinfo->{'from_id'}) . " (deleted)" .
1936                                       "</div>\n"; # class="diff_info"
1937
1938                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1939                                  $diffinfo->{'status'} eq "C" || # copied
1940                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1941                                 print "<div class=\"diff_info\">" .
1942                                       file_type($diffinfo->{'from_mode'}) . ":" .
1943                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1944                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1945                                               $diffinfo->{'from_id'}) .
1946                                       " -> " .
1947                                       file_type($diffinfo->{'to_mode'}) . ":" .
1948                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1949                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1950                                               $diffinfo->{'to_id'});
1951                                 print "</div>\n"; # class="diff_info"
1952
1953                         } else { # modified, mode changed, ...
1954                                 print "<div class=\"diff_info\">" .
1955                                       file_type($diffinfo->{'from_mode'}) . ":" .
1956                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1957                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1958                                               $diffinfo->{'from_id'}) .
1959                                       " -> " .
1960                                       file_type($diffinfo->{'to_mode'}) . ":" .
1961                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1962                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1963                                               $diffinfo->{'to_id'});
1964                                 print "</div>\n"; # class="diff_info"
1965                         }
1966
1967                         #print "<div class=\"diff extended_header\">\n";
1968                         $in_header = 1;
1969                         next LINE;
1970                 } # start of patch in patchset
1971
1972
1973                 if ($in_header && $patch_line =~ m/^---/) {
1974                         #print "</div>\n"; # class="diff extended_header"
1975                         $in_header = 0;
1976
1977                         my $file = $diffinfo->{'from_file'};
1978                         $file  ||= $diffinfo->{'file'};
1979                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1980                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1981                                         -class => "list"}, esc_html($file));
1982                         $patch_line =~ s|a/.*$|a/$file|g;
1983                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1984
1985                         $patch_line = <$fd>;
1986                         chomp $patch_line;
1987
1988                         #$patch_line =~ m/^+++/;
1989                         $file    = $diffinfo->{'to_file'};
1990                         $file  ||= $diffinfo->{'file'};
1991                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1992                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1993                                         -class => "list"}, esc_html($file));
1994                         $patch_line =~ s|b/.*|b/$file|g;
1995                         print "<div class=\"diff to_file\">$patch_line</div>\n";
1996
1997                         next LINE;
1998                 }
1999                 next LINE if $in_header;
2000
2001                 print format_diff_line($patch_line);
2002         }
2003         print "</div>\n" if $patch_found; # class="patch"
2004
2005         print "</div>\n"; # class="patchset"
2006 }
2007
2008 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009
2010 sub git_shortlog_body {
2011         # uses global variable $project
2012         my ($revlist, $from, $to, $refs, $extra) = @_;
2013
2014         $from = 0 unless defined $from;
2015         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2016
2017         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2018         my $alternate = 1;
2019         for (my $i = $from; $i <= $to; $i++) {
2020                 my $commit = $revlist->[$i];
2021                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2022                 my $ref = format_ref_marker($refs, $commit);
2023                 my %co = parse_commit($commit);
2024                 if ($alternate) {
2025                         print "<tr class=\"dark\">\n";
2026                 } else {
2027                         print "<tr class=\"light\">\n";
2028                 }
2029                 $alternate ^= 1;
2030                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2031                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2032                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2033                       "<td>";
2034                 print format_subject_html($co{'title'}, $co{'title_short'},
2035                                           href(action=>"commit", hash=>$commit), $ref);
2036                 print "</td>\n" .
2037                       "<td class=\"link\">" .
2038                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2039                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2040                 if (gitweb_have_snapshot()) {
2041                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2042                 }
2043                 print "</td>\n" .
2044                       "</tr>\n";
2045         }
2046         if (defined $extra) {
2047                 print "<tr>\n" .
2048                       "<td colspan=\"4\">$extra</td>\n" .
2049                       "</tr>\n";
2050         }
2051         print "</table>\n";
2052 }
2053
2054 sub git_history_body {
2055         # Warning: assumes constant type (blob or tree) during history
2056         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2057
2058         $from = 0 unless defined $from;
2059         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2060
2061         print "<table class=\"history\" cellspacing=\"0\">\n";
2062         my $alternate = 1;
2063         for (my $i = $from; $i <= $to; $i++) {
2064                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2065                         next;
2066                 }
2067
2068                 my $commit = $1;
2069                 my %co = parse_commit($commit);
2070                 if (!%co) {
2071                         next;
2072                 }
2073
2074                 my $ref = format_ref_marker($refs, $commit);
2075
2076                 if ($alternate) {
2077                         print "<tr class=\"dark\">\n";
2078                 } else {
2079                         print "<tr class=\"light\">\n";
2080                 }
2081                 $alternate ^= 1;
2082                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2083                       # shortlog uses      chop_str($co{'author_name'}, 10)
2084                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2085                       "<td>";
2086                 # originally git_history used chop_str($co{'title'}, 50)
2087                 print format_subject_html($co{'title'}, $co{'title_short'},
2088                                           href(action=>"commit", hash=>$commit), $ref);
2089                 print "</td>\n" .
2090                       "<td class=\"link\">" .
2091                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2092                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2093
2094                 if ($ftype eq 'blob') {
2095                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2096                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2097                         if (defined $blob_current && defined $blob_parent &&
2098                                         $blob_current ne $blob_parent) {
2099                                 print " | " .
2100                                         $cgi->a({-href => href(action=>"blobdiff",
2101                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2102                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2103                                                                file_name=>$file_name)},
2104                                                 "diff to current");
2105                         }
2106                 }
2107                 print "</td>\n" .
2108                       "</tr>\n";
2109         }
2110         if (defined $extra) {
2111                 print "<tr>\n" .
2112                       "<td colspan=\"4\">$extra</td>\n" .
2113                       "</tr>\n";
2114         }
2115         print "</table>\n";
2116 }
2117
2118 sub git_tags_body {
2119         # uses global variable $project
2120         my ($taglist, $from, $to, $extra) = @_;
2121         $from = 0 unless defined $from;
2122         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2123
2124         print "<table class=\"tags\" cellspacing=\"0\">\n";
2125         my $alternate = 1;
2126         for (my $i = $from; $i <= $to; $i++) {
2127                 my $entry = $taglist->[$i];
2128                 my %tag = %$entry;
2129                 my $comment_lines = $tag{'comment'};
2130                 my $comment = shift @$comment_lines;
2131                 my $comment_short;
2132                 if (defined $comment) {
2133                         $comment_short = chop_str($comment, 30, 5);
2134                 }
2135                 if ($alternate) {
2136                         print "<tr class=\"dark\">\n";
2137                 } else {
2138                         print "<tr class=\"light\">\n";
2139                 }
2140                 $alternate ^= 1;
2141                 print "<td><i>$tag{'age'}</i></td>\n" .
2142                       "<td>" .
2143                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2144                                -class => "list name"}, esc_html($tag{'name'})) .
2145                       "</td>\n" .
2146                       "<td>";
2147                 if (defined $comment) {
2148                         print format_subject_html($comment, $comment_short,
2149                                                   href(action=>"tag", hash=>$tag{'id'}));
2150                 }
2151                 print "</td>\n" .
2152                       "<td class=\"selflink\">";
2153                 if ($tag{'type'} eq "tag") {
2154                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2155                 } else {
2156                         print "&nbsp;";
2157                 }
2158                 print "</td>\n" .
2159                       "<td class=\"link\">" . " | " .
2160                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2161                 if ($tag{'reftype'} eq "commit") {
2162                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2163                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2164                 } elsif ($tag{'reftype'} eq "blob") {
2165                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2166                 }
2167                 print "</td>\n" .
2168                       "</tr>";
2169         }
2170         if (defined $extra) {
2171                 print "<tr>\n" .
2172                       "<td colspan=\"5\">$extra</td>\n" .
2173                       "</tr>\n";
2174         }
2175         print "</table>\n";
2176 }
2177
2178 sub git_heads_body {
2179         # uses global variable $project
2180         my ($headlist, $head, $from, $to, $extra) = @_;
2181         $from = 0 unless defined $from;
2182         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2183
2184         print "<table class=\"heads\" cellspacing=\"0\">\n";
2185         my $alternate = 1;
2186         for (my $i = $from; $i <= $to; $i++) {
2187                 my $entry = $headlist->[$i];
2188                 my %tag = %$entry;
2189                 my $curr = $tag{'id'} eq $head;
2190                 if ($alternate) {
2191                         print "<tr class=\"dark\">\n";
2192                 } else {
2193                         print "<tr class=\"light\">\n";
2194                 }
2195                 $alternate ^= 1;
2196                 print "<td><i>$tag{'age'}</i></td>\n" .
2197                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2198                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2199                                -class => "list name"},esc_html($tag{'name'})) .
2200                       "</td>\n" .
2201                       "<td class=\"link\">" .
2202                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2203                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2204                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2205                       "</td>\n" .
2206                       "</tr>";
2207         }
2208         if (defined $extra) {
2209                 print "<tr>\n" .
2210                       "<td colspan=\"3\">$extra</td>\n" .
2211                       "</tr>\n";
2212         }
2213         print "</table>\n";
2214 }
2215
2216 ## ======================================================================
2217 ## ======================================================================
2218 ## actions
2219
2220 sub git_project_list {
2221         my $order = $cgi->param('o');
2222         if (defined $order && $order !~ m/project|descr|owner|age/) {
2223                 die_error(undef, "Unknown order parameter");
2224         }
2225
2226         my @list = git_get_projects_list();
2227         my @projects;
2228         if (!@list) {
2229                 die_error(undef, "No projects found");
2230         }
2231         foreach my $pr (@list) {
2232                 my $head = git_get_head_hash($pr->{'path'});
2233                 if (!defined $head) {
2234                         next;
2235                 }
2236                 $git_dir = "$projectroot/$pr->{'path'}";
2237                 my %co = parse_commit($head);
2238                 if (!%co) {
2239                         next;
2240                 }
2241                 $pr->{'commit'} = \%co;
2242                 if (!defined $pr->{'descr'}) {
2243                         my $descr = git_get_project_description($pr->{'path'}) || "";
2244                         $pr->{'descr'} = chop_str($descr, 25, 5);
2245                 }
2246                 if (!defined $pr->{'owner'}) {
2247                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2248                 }
2249                 push @projects, $pr;
2250         }
2251
2252         git_header_html();
2253         if (-f $home_text) {
2254                 print "<div class=\"index_include\">\n";
2255                 open (my $fd, $home_text);
2256                 print <$fd>;
2257                 close $fd;
2258                 print "</div>\n";
2259         }
2260         print "<table class=\"project_list\">\n" .
2261               "<tr>\n";
2262         $order ||= "project";
2263         if ($order eq "project") {
2264                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2265                 print "<th>Project</th>\n";
2266         } else {
2267                 print "<th>" .
2268                       $cgi->a({-href => href(project=>undef, order=>'project'),
2269                                -class => "header"}, "Project") .
2270                       "</th>\n";
2271         }
2272         if ($order eq "descr") {
2273                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2274                 print "<th>Description</th>\n";
2275         } else {
2276                 print "<th>" .
2277                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2278                                -class => "header"}, "Description") .
2279                       "</th>\n";
2280         }
2281         if ($order eq "owner") {
2282                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2283                 print "<th>Owner</th>\n";
2284         } else {
2285                 print "<th>" .
2286                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2287                                -class => "header"}, "Owner") .
2288                       "</th>\n";
2289         }
2290         if ($order eq "age") {
2291                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2292                 print "<th>Last Change</th>\n";
2293         } else {
2294                 print "<th>" .
2295                       $cgi->a({-href => href(project=>undef, order=>'age'),
2296                                -class => "header"}, "Last Change") .
2297                       "</th>\n";
2298         }
2299         print "<th></th>\n" .
2300               "</tr>\n";
2301         my $alternate = 1;
2302         foreach my $pr (@projects) {
2303                 if ($alternate) {
2304                         print "<tr class=\"dark\">\n";
2305                 } else {
2306                         print "<tr class=\"light\">\n";
2307                 }
2308                 $alternate ^= 1;
2309                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2310                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2311                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2312                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2313                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2314                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2315                       "<td class=\"link\">" .
2316                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2317                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2318                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2319                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2320                       "</td>\n" .
2321                       "</tr>\n";
2322         }
2323         print "</table>\n";
2324         git_footer_html();
2325 }
2326
2327 sub git_project_index {
2328         my @projects = git_get_projects_list();
2329
2330         print $cgi->header(
2331                 -type => 'text/plain',
2332                 -charset => 'utf-8',
2333                 -content_disposition => 'inline; filename="index.aux"');
2334
2335         foreach my $pr (@projects) {
2336                 if (!exists $pr->{'owner'}) {
2337                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2338                 }
2339
2340                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2341                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2342                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2343                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2344                 $path  =~ s/ /\+/g;
2345                 $owner =~ s/ /\+/g;
2346
2347                 print "$path $owner\n";
2348         }
2349 }
2350
2351 sub git_summary {
2352         my $descr = git_get_project_description($project) || "none";
2353         my $head = git_get_head_hash($project);
2354         my %co = parse_commit($head);
2355         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2356
2357         my $owner = git_get_project_owner($project);
2358
2359         my ($reflist, $refs) = git_get_refs_list();
2360
2361         my @taglist;
2362         my @headlist;
2363         foreach my $ref (@$reflist) {
2364                 if ($ref->{'name'} =~ s!^heads/!!) {
2365                         push @headlist, $ref;
2366                 } else {
2367                         $ref->{'name'} =~ s!^tags/!!;
2368                         push @taglist, $ref;
2369                 }
2370         }
2371
2372         git_header_html();
2373         git_print_page_nav('summary','', $head);
2374
2375         print "<div class=\"title\">&nbsp;</div>\n";
2376         print "<table cellspacing=\"0\">\n" .
2377               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2378               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2379               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2380         # use per project git URL list in $projectroot/$project/cloneurl
2381         # or make project git URL from git base URL and project name
2382         my $url_tag = "URL";
2383         my @url_list = git_get_project_url_list($project);
2384         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2385         foreach my $git_url (@url_list) {
2386                 next unless $git_url;
2387                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2388                 $url_tag = "";
2389         }
2390         print "</table>\n";
2391
2392         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2393                 git_get_head_hash($project)
2394                 or die_error(undef, "Open git-rev-list failed");
2395         my @revlist = map { chomp; $_ } <$fd>;
2396         close $fd;
2397         git_print_header_div('shortlog');
2398         git_shortlog_body(\@revlist, 0, 15, $refs,
2399                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2400
2401         if (@taglist) {
2402                 git_print_header_div('tags');
2403                 git_tags_body(\@taglist, 0, 15,
2404                               $cgi->a({-href => href(action=>"tags")}, "..."));
2405         }
2406
2407         if (@headlist) {
2408                 git_print_header_div('heads');
2409                 git_heads_body(\@headlist, $head, 0, 15,
2410                                $cgi->a({-href => href(action=>"heads")}, "..."));
2411         }
2412
2413         git_footer_html();
2414 }
2415
2416 sub git_tag {
2417         my $head = git_get_head_hash($project);
2418         git_header_html();
2419         git_print_page_nav('','', $head,undef,$head);
2420         my %tag = parse_tag($hash);
2421         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2422         print "<div class=\"title_text\">\n" .
2423               "<table cellspacing=\"0\">\n" .
2424               "<tr>\n" .
2425               "<td>object</td>\n" .
2426               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2427                                $tag{'object'}) . "</td>\n" .
2428               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2429                                               $tag{'type'}) . "</td>\n" .
2430               "</tr>\n";
2431         if (defined($tag{'author'})) {
2432                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2433                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2434                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2435                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2436                         "</td></tr>\n";
2437         }
2438         print "</table>\n\n" .
2439               "</div>\n";
2440         print "<div class=\"page_body\">";
2441         my $comment = $tag{'comment'};
2442         foreach my $line (@$comment) {
2443                 print esc_html($line) . "<br/>\n";
2444         }
2445         print "</div>\n";
2446         git_footer_html();
2447 }
2448
2449 sub git_blame2 {
2450         my $fd;
2451         my $ftype;
2452
2453         my ($have_blame) = gitweb_check_feature('blame');
2454         if (!$have_blame) {
2455                 die_error('403 Permission denied', "Permission denied");
2456         }
2457         die_error('404 Not Found', "File name not defined") if (!$file_name);
2458         $hash_base ||= git_get_head_hash($project);
2459         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2460         my %co = parse_commit($hash_base)
2461                 or die_error(undef, "Reading commit failed");
2462         if (!defined $hash) {
2463                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2464                         or die_error(undef, "Error looking up file");
2465         }
2466         $ftype = git_get_type($hash);
2467         if ($ftype !~ "blob") {
2468                 die_error("400 Bad Request", "Object is not a blob");
2469         }
2470         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2471                 or die_error(undef, "Open git-blame failed");
2472         git_header_html();
2473         my $formats_nav =
2474                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2475                         "blob") .
2476                 " | " .
2477                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2478                         "history") .
2479                 " | " .
2480                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2481                         "HEAD");
2482         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2483         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2484         git_print_page_path($file_name, $ftype, $hash_base);
2485         my @rev_color = (qw(light2 dark2));
2486         my $num_colors = scalar(@rev_color);
2487         my $current_color = 0;
2488         my $last_rev;
2489         print <<HTML;
2490 <div class="page_body">
2491 <table class="blame">
2492 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2493 HTML
2494         while (<$fd>) {
2495                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2496                 my $full_rev = $1;
2497                 my $rev = substr($full_rev, 0, 8);
2498                 my $lineno = $2;
2499                 my $data = $3;
2500
2501                 if (!defined $last_rev) {
2502                         $last_rev = $full_rev;
2503                 } elsif ($last_rev ne $full_rev) {
2504                         $last_rev = $full_rev;
2505                         $current_color = ++$current_color % $num_colors;
2506                 }
2507                 print "<tr class=\"$rev_color[$current_color]\">\n";
2508                 print "<td class=\"sha1\">" .
2509                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2510                                 esc_html($rev)) . "</td>\n";
2511                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2512                       esc_html($lineno) . "</a></td>\n";
2513                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2514                 print "</tr>\n";
2515         }
2516         print "</table>\n";
2517         print "</div>";
2518         close $fd
2519                 or print "Reading blob failed\n";
2520         git_footer_html();
2521 }
2522
2523 sub git_blame {
2524         my $fd;
2525
2526         my ($have_blame) = gitweb_check_feature('blame');
2527         if (!$have_blame) {
2528                 die_error('403 Permission denied', "Permission denied");
2529         }
2530         die_error('404 Not Found', "File name not defined") if (!$file_name);
2531         $hash_base ||= git_get_head_hash($project);
2532         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2533         my %co = parse_commit($hash_base)
2534                 or die_error(undef, "Reading commit failed");
2535         if (!defined $hash) {
2536                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2537                         or die_error(undef, "Error lookup file");
2538         }
2539         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2540                 or die_error(undef, "Open git-annotate failed");
2541         git_header_html();
2542         my $formats_nav =
2543                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2544                         "blob") .
2545                 " | " .
2546                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2547                         "history") .
2548                 " | " .
2549                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2550                         "HEAD");
2551         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2552         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2553         git_print_page_path($file_name, 'blob', $hash_base);
2554         print "<div class=\"page_body\">\n";
2555         print <<HTML;
2556 <table class="blame">
2557   <tr>
2558     <th>Commit</th>
2559     <th>Age</th>
2560     <th>Author</th>
2561     <th>Line</th>
2562     <th>Data</th>
2563   </tr>
2564 HTML
2565         my @line_class = (qw(light dark));
2566         my $line_class_len = scalar (@line_class);
2567         my $line_class_num = $#line_class;
2568         while (my $line = <$fd>) {
2569                 my $long_rev;
2570                 my $short_rev;
2571                 my $author;
2572                 my $time;
2573                 my $lineno;
2574                 my $data;
2575                 my $age;
2576                 my $age_str;
2577                 my $age_class;
2578
2579                 chomp $line;
2580                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2581
2582                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2583                         $long_rev = $1;
2584                         $author   = $2;
2585                         $time     = $3;
2586                         $lineno   = $4;
2587                         $data     = $5;
2588                 } else {
2589                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2590                         next;
2591                 }
2592                 $short_rev  = substr ($long_rev, 0, 8);
2593                 $age        = time () - $time;
2594                 $age_str    = age_string ($age);
2595                 $age_str    =~ s/ /&nbsp;/g;
2596                 $age_class  = age_class($age);
2597                 $author     = esc_html ($author);
2598                 $author     =~ s/ /&nbsp;/g;
2599
2600                 $data = untabify($data);
2601                 $data = esc_html ($data);
2602
2603                 print <<HTML;
2604   <tr class="$line_class[$line_class_num]">
2605     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2606     <td class="$age_class">$age_str</td>
2607     <td>$author</td>
2608     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2609     <td class="pre">$data</td>
2610   </tr>
2611 HTML
2612         } # while (my $line = <$fd>)
2613         print "</table>\n\n";
2614         close $fd
2615                 or print "Reading blob failed.\n";
2616         print "</div>";
2617         git_footer_html();
2618 }
2619
2620 sub git_tags {
2621         my $head = git_get_head_hash($project);
2622         git_header_html();
2623         git_print_page_nav('','', $head,undef,$head);
2624         git_print_header_div('summary', $project);
2625
2626         my ($taglist) = git_get_refs_list("tags");
2627         if (@$taglist) {
2628                 git_tags_body($taglist);
2629         }
2630         git_footer_html();
2631 }
2632
2633 sub git_heads {
2634         my $head = git_get_head_hash($project);
2635         git_header_html();
2636         git_print_page_nav('','', $head,undef,$head);
2637         git_print_header_div('summary', $project);
2638
2639         my ($headlist) = git_get_refs_list("heads");
2640         if (@$headlist) {
2641                 git_heads_body($headlist, $head);
2642         }
2643         git_footer_html();
2644 }
2645
2646 sub git_blob_plain {
2647         my $expires;
2648
2649         if (!defined $hash) {
2650                 if (defined $file_name) {
2651                         my $base = $hash_base || git_get_head_hash($project);
2652                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2653                                 or die_error(undef, "Error lookup file");
2654                 } else {
2655                         die_error(undef, "No file name defined");
2656                 }
2657         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2658                 # blobs defined by non-textual hash id's can be cached
2659                 $expires = "+1d";
2660         }
2661
2662         my $type = shift;
2663         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2664                 or die_error(undef, "Couldn't cat $file_name, $hash");
2665
2666         $type ||= blob_mimetype($fd, $file_name);
2667
2668         # save as filename, even when no $file_name is given
2669         my $save_as = "$hash";
2670         if (defined $file_name) {
2671                 $save_as = $file_name;
2672         } elsif ($type =~ m/^text\//) {
2673                 $save_as .= '.txt';
2674         }
2675
2676         print $cgi->header(
2677                 -type => "$type",
2678                 -expires=>$expires,
2679                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2680         undef $/;
2681         binmode STDOUT, ':raw';
2682         print <$fd>;
2683         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2684         $/ = "\n";
2685         close $fd;
2686 }
2687
2688 sub git_blob {
2689         my $expires;
2690
2691         if (!defined $hash) {
2692                 if (defined $file_name) {
2693                         my $base = $hash_base || git_get_head_hash($project);
2694                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2695                                 or die_error(undef, "Error lookup file");
2696                 } else {
2697                         die_error(undef, "No file name defined");
2698                 }
2699         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2700                 # blobs defined by non-textual hash id's can be cached
2701                 $expires = "+1d";
2702         }
2703
2704         my ($have_blame) = gitweb_check_feature('blame');
2705         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2706                 or die_error(undef, "Couldn't cat $file_name, $hash");
2707         my $mimetype = blob_mimetype($fd, $file_name);
2708         if ($mimetype !~ m/^text\//) {
2709                 close $fd;
2710                 return git_blob_plain($mimetype);
2711         }
2712         git_header_html(undef, $expires);
2713         my $formats_nav = '';
2714         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2715                 if (defined $file_name) {
2716                         if ($have_blame) {
2717                                 $formats_nav .=
2718                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2719                                                                hash=>$hash, file_name=>$file_name)},
2720                                                 "blame") .
2721                                         " | ";
2722                         }
2723                         $formats_nav .=
2724                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2725                                                        hash=>$hash, file_name=>$file_name)},
2726                                         "history") .
2727                                 " | " .
2728                                 $cgi->a({-href => href(action=>"blob_plain",
2729                                                        hash=>$hash, file_name=>$file_name)},
2730                                         "raw") .
2731                                 " | " .
2732                                 $cgi->a({-href => href(action=>"blob",
2733                                                        hash_base=>"HEAD", file_name=>$file_name)},
2734                                         "HEAD");
2735                 } else {
2736                         $formats_nav .=
2737                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2738                 }
2739                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2740                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2741         } else {
2742                 print "<div class=\"page_nav\">\n" .
2743                       "<br/><br/></div>\n" .
2744                       "<div class=\"title\">$hash</div>\n";
2745         }
2746         git_print_page_path($file_name, "blob", $hash_base);
2747         print "<div class=\"page_body\">\n";
2748         my $nr;
2749         while (my $line = <$fd>) {
2750                 chomp $line;
2751                 $nr++;
2752                 $line = untabify($line);
2753                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2754                        $nr, $nr, $nr, esc_html($line);
2755         }
2756         close $fd
2757                 or print "Reading blob failed.\n";
2758         print "</div>";
2759         git_footer_html();
2760 }
2761
2762 sub git_tree {
2763         my $have_snapshot = gitweb_have_snapshot();
2764
2765         if (!defined $hash_base) {
2766                 $hash_base = "HEAD";
2767         }
2768         if (!defined $hash) {
2769                 if (defined $file_name) {
2770                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2771                 } else {
2772                         $hash = $hash_base;
2773                 }
2774         }
2775         $/ = "\0";
2776         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2777                 or die_error(undef, "Open git-ls-tree failed");
2778         my @entries = map { chomp; $_ } <$fd>;
2779         close $fd or die_error(undef, "Reading tree failed");
2780         $/ = "\n";
2781
2782         my $refs = git_get_references();
2783         my $ref = format_ref_marker($refs, $hash_base);
2784         git_header_html();
2785         my $basedir = '';
2786         my ($have_blame) = gitweb_check_feature('blame');
2787         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2788                 my @views_nav = ();
2789                 if (defined $file_name) {
2790                         push @views_nav,
2791                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2792                                                        hash=>$hash, file_name=>$file_name)},
2793                                         "history"),
2794                                 $cgi->a({-href => href(action=>"tree",
2795                                                        hash_base=>"HEAD", file_name=>$file_name)},
2796                                         "HEAD"),
2797                 }
2798                 if ($have_snapshot) {
2799                         # FIXME: Should be available when we have no hash base as well.
2800                         push @views_nav,
2801                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2802                                         "snapshot");
2803                 }
2804                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2805                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2806         } else {
2807                 undef $hash_base;
2808                 print "<div class=\"page_nav\">\n";
2809                 print "<br/><br/></div>\n";
2810                 print "<div class=\"title\">$hash</div>\n";
2811         }
2812         if (defined $file_name) {
2813                 $basedir = $file_name;
2814                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
2815                         $basedir .= '/';
2816                 }
2817         }
2818         git_print_page_path($file_name, 'tree', $hash_base);
2819         print "<div class=\"page_body\">\n";
2820         print "<table cellspacing=\"0\">\n";
2821         my $alternate = 1;
2822         foreach my $line (@entries) {
2823                 my %t = parse_ls_tree_line($line, -z => 1);
2824
2825                 if ($alternate) {
2826                         print "<tr class=\"dark\">\n";
2827                 } else {
2828                         print "<tr class=\"light\">\n";
2829                 }
2830                 $alternate ^= 1;
2831
2832                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
2833
2834                 print "</tr>\n";
2835         }
2836         print "</table>\n" .
2837               "</div>";
2838         git_footer_html();
2839 }
2840
2841 sub git_snapshot {
2842         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2843         my $have_snapshot = (defined $ctype && defined $suffix);
2844         if (!$have_snapshot) {
2845                 die_error('403 Permission denied', "Permission denied");
2846         }
2847
2848         if (!defined $hash) {
2849                 $hash = git_get_head_hash($project);
2850         }
2851
2852         my $filename = basename($project) . "-$hash.tar.$suffix";
2853
2854         print $cgi->header(
2855                 -type => 'application/x-tar',
2856                 -content_encoding => $ctype,
2857                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2858                 -status => '200 OK');
2859
2860         my $git = git_cmd_str();
2861         my $name = $project;
2862         $name =~ s/\047/\047\\\047\047/g;
2863         open my $fd, "-|",
2864         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2865                 or die_error(undef, "Execute git-tar-tree failed.");
2866         binmode STDOUT, ':raw';
2867         print <$fd>;
2868         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2869         close $fd;
2870
2871 }
2872
2873 sub git_log {
2874         my $head = git_get_head_hash($project);
2875         if (!defined $hash) {
2876                 $hash = $head;
2877         }
2878         if (!defined $page) {
2879                 $page = 0;
2880         }
2881         my $refs = git_get_references();
2882
2883         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2884         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2885                 or die_error(undef, "Open git-rev-list failed");
2886         my @revlist = map { chomp; $_ } <$fd>;
2887         close $fd;
2888
2889         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2890
2891         git_header_html();
2892         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2893
2894         if (!@revlist) {
2895                 my %co = parse_commit($hash);
2896
2897                 git_print_header_div('summary', $project);
2898                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2899         }
2900         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2901                 my $commit = $revlist[$i];
2902                 my $ref = format_ref_marker($refs, $commit);
2903                 my %co = parse_commit($commit);
2904                 next if !%co;
2905                 my %ad = parse_date($co{'author_epoch'});
2906                 git_print_header_div('commit',
2907                                "<span class=\"age\">$co{'age_string'}</span>" .
2908                                esc_html($co{'title'}) . $ref,
2909                                $commit);
2910                 print "<div class=\"title_text\">\n" .
2911                       "<div class=\"log_link\">\n" .
2912                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2913                       " | " .
2914                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2915                       " | " .
2916                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2917                       "<br/>\n" .
2918                       "</div>\n" .
2919                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2920                       "</div>\n";
2921
2922                 print "<div class=\"log_body\">\n";
2923                 git_print_simplified_log($co{'comment'});
2924                 print "</div>\n";
2925         }
2926         git_footer_html();
2927 }
2928
2929 sub git_commit {
2930         my %co = parse_commit($hash);
2931         if (!%co) {
2932                 die_error(undef, "Unknown commit object");
2933         }
2934         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2935         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2936
2937         my $parent = $co{'parent'};
2938         if (!defined $parent) {
2939                 $parent = "--root";
2940         }
2941         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2942                 or die_error(undef, "Open git-diff-tree failed");
2943         my @difftree = map { chomp; $_ } <$fd>;
2944         close $fd or die_error(undef, "Reading git-diff-tree failed");
2945
2946         # non-textual hash id's can be cached
2947         my $expires;
2948         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2949                 $expires = "+1d";
2950         }
2951         my $refs = git_get_references();
2952         my $ref = format_ref_marker($refs, $co{'id'});
2953
2954         my $have_snapshot = gitweb_have_snapshot();
2955
2956         my @views_nav = ();
2957         if (defined $file_name && defined $co{'parent'}) {
2958                 push @views_nav,
2959                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2960                                 "blame");
2961         }
2962         git_header_html(undef, $expires);
2963         git_print_page_nav('commit', '',
2964                            $hash, $co{'tree'}, $hash,
2965                            join (' | ', @views_nav));
2966
2967         if (defined $co{'parent'}) {
2968                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2969         } else {
2970                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2971         }
2972         print "<div class=\"title_text\">\n" .
2973               "<table cellspacing=\"0\">\n";
2974         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2975               "<tr>" .
2976               "<td></td><td> $ad{'rfc2822'}";
2977         if ($ad{'hour_local'} < 6) {
2978                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2979                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2980         } else {
2981                 printf(" (%02d:%02d %s)",
2982                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2983         }
2984         print "</td>" .
2985               "</tr>\n";
2986         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2987         print "<tr><td></td><td> $cd{'rfc2822'}" .
2988               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2989               "</td></tr>\n";
2990         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2991         print "<tr>" .
2992               "<td>tree</td>" .
2993               "<td class=\"sha1\">" .
2994               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2995                        class => "list"}, $co{'tree'}) .
2996               "</td>" .
2997               "<td class=\"link\">" .
2998               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2999                       "tree");
3000         if ($have_snapshot) {
3001                 print " | " .
3002                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3003         }
3004         print "</td>" .
3005               "</tr>\n";
3006         my $parents = $co{'parents'};
3007         foreach my $par (@$parents) {
3008                 print "<tr>" .
3009                       "<td>parent</td>" .
3010                       "<td class=\"sha1\">" .
3011                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3012                                class => "list"}, $par) .
3013                       "</td>" .
3014                       "<td class=\"link\">" .
3015                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3016                       " | " .
3017                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3018                       "</td>" .
3019                       "</tr>\n";
3020         }
3021         print "</table>".
3022               "</div>\n";
3023
3024         print "<div class=\"page_body\">\n";
3025         git_print_log($co{'comment'});
3026         print "</div>\n";
3027
3028         git_difftree_body(\@difftree, $hash, $parent);
3029
3030         git_footer_html();
3031 }
3032
3033 sub git_blobdiff {
3034         my $format = shift || 'html';
3035
3036         my $fd;
3037         my @difftree;
3038         my %diffinfo;
3039         my $expires;
3040
3041         # preparing $fd and %diffinfo for git_patchset_body
3042         # new style URI
3043         if (defined $hash_base && defined $hash_parent_base) {
3044                 if (defined $file_name) {
3045                         # read raw output
3046                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3047                                 "--", $file_name
3048                                 or die_error(undef, "Open git-diff-tree failed");
3049                         @difftree = map { chomp; $_ } <$fd>;
3050                         close $fd
3051                                 or die_error(undef, "Reading git-diff-tree failed");
3052                         @difftree
3053                                 or die_error('404 Not Found', "Blob diff not found");
3054
3055                 } elsif (defined $hash &&
3056                          $hash =~ /[0-9a-fA-F]{40}/) {
3057                         # try to find filename from $hash
3058
3059                         # read filtered raw output
3060                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3061                                 or die_error(undef, "Open git-diff-tree failed");
3062                         @difftree =
3063                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3064                                 # $hash == to_id
3065                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3066                                 map { chomp; $_ } <$fd>;
3067                         close $fd
3068                                 or die_error(undef, "Reading git-diff-tree failed");
3069                         @difftree
3070                                 or die_error('404 Not Found', "Blob diff not found");
3071
3072                 } else {
3073                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3074                 }
3075
3076                 if (@difftree > 1) {
3077                         die_error('404 Not Found', "Ambiguous blob diff specification");
3078                 }
3079
3080                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3081                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3082                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3083
3084                 $hash_parent ||= $diffinfo{'from_id'};
3085                 $hash        ||= $diffinfo{'to_id'};
3086
3087                 # non-textual hash id's can be cached
3088                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3089                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3090                         $expires = '+1d';
3091                 }
3092
3093                 # open patch output
3094                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3095                         '-p', $hash_parent_base, $hash_base,
3096                         "--", $file_name
3097                         or die_error(undef, "Open git-diff-tree failed");
3098         }
3099
3100         # old/legacy style URI
3101         if (!%diffinfo && # if new style URI failed
3102             defined $hash && defined $hash_parent) {
3103                 # fake git-diff-tree raw output
3104                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3105                 $diffinfo{'from_id'} = $hash_parent;
3106                 $diffinfo{'to_id'}   = $hash;
3107                 if (defined $file_name) {
3108                         if (defined $file_parent) {
3109                                 $diffinfo{'status'} = '2';
3110                                 $diffinfo{'from_file'} = $file_parent;
3111                                 $diffinfo{'to_file'}   = $file_name;
3112                         } else { # assume not renamed
3113                                 $diffinfo{'status'} = '1';
3114                                 $diffinfo{'from_file'} = $file_name;
3115                                 $diffinfo{'to_file'}   = $file_name;
3116                         }
3117                 } else { # no filename given
3118                         $diffinfo{'status'} = '2';
3119                         $diffinfo{'from_file'} = $hash_parent;
3120                         $diffinfo{'to_file'}   = $hash;
3121                 }
3122
3123                 # non-textual hash id's can be cached
3124                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3125                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3126                         $expires = '+1d';
3127                 }
3128
3129                 # open patch output
3130                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3131                         or die_error(undef, "Open git-diff failed");
3132         } else  {
3133                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3134                         unless %diffinfo;
3135         }
3136
3137         # header
3138         if ($format eq 'html') {
3139                 my $formats_nav =
3140                         $cgi->a({-href => href(action=>"blobdiff_plain",
3141                                                hash=>$hash, hash_parent=>$hash_parent,
3142                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3143                                                file_name=>$file_name, file_parent=>$file_parent)},
3144                                 "raw");
3145                 git_header_html(undef, $expires);
3146                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3147                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3148                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3149                 } else {
3150                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3151                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3152                 }
3153                 if (defined $file_name) {
3154                         git_print_page_path($file_name, "blob", $hash_base);
3155                 } else {
3156                         print "<div class=\"page_path\"></div>\n";
3157                 }
3158
3159         } elsif ($format eq 'plain') {
3160                 print $cgi->header(
3161                         -type => 'text/plain',
3162                         -charset => 'utf-8',
3163                         -expires => $expires,
3164                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3165
3166                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3167
3168         } else {
3169                 die_error(undef, "Unknown blobdiff format");
3170         }
3171
3172         # patch
3173         if ($format eq 'html') {
3174                 print "<div class=\"page_body\">\n";
3175
3176                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3177                 close $fd;
3178
3179                 print "</div>\n"; # class="page_body"
3180                 git_footer_html();
3181
3182         } else {
3183                 while (my $line = <$fd>) {
3184                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3185                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3186
3187                         print $line;
3188
3189                         last if $line =~ m!^\+\+\+!;
3190                 }
3191                 local $/ = undef;
3192                 print <$fd>;
3193                 close $fd;
3194         }
3195 }
3196
3197 sub git_blobdiff_plain {
3198         git_blobdiff('plain');
3199 }
3200
3201 sub git_commitdiff {
3202         my $format = shift || 'html';
3203         my %co = parse_commit($hash);
3204         if (!%co) {
3205                 die_error(undef, "Unknown commit object");
3206         }
3207         if (!defined $hash_parent) {
3208                 $hash_parent = $co{'parent'} || '--root';
3209         }
3210
3211         # read commitdiff
3212         my $fd;
3213         my @difftree;
3214         if ($format eq 'html') {
3215                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3216                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3217                         or die_error(undef, "Open git-diff-tree failed");
3218
3219                 while (chomp(my $line = <$fd>)) {
3220                         # empty line ends raw part of diff-tree output
3221                         last unless $line;
3222                         push @difftree, $line;
3223                 }
3224
3225         } elsif ($format eq 'plain') {
3226                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3227                         '-p', $hash_parent, $hash
3228                         or die_error(undef, "Open git-diff-tree failed");
3229
3230         } else {
3231                 die_error(undef, "Unknown commitdiff format");
3232         }
3233
3234         # non-textual hash id's can be cached
3235         my $expires;
3236         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3237                 $expires = "+1d";
3238         }
3239
3240         # write commit message
3241         if ($format eq 'html') {
3242                 my $refs = git_get_references();
3243                 my $ref = format_ref_marker($refs, $co{'id'});
3244                 my $formats_nav =
3245                         $cgi->a({-href => href(action=>"commitdiff_plain",
3246                                                hash=>$hash, hash_parent=>$hash_parent)},
3247                                 "raw");
3248
3249                 git_header_html(undef, $expires);
3250                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3251                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3252                 git_print_authorship(\%co);
3253                 print "<div class=\"page_body\">\n";
3254                 print "<div class=\"log\">\n";
3255                 git_print_simplified_log($co{'comment'}, 1); # skip title
3256                 print "</div>\n"; # class="log"
3257
3258         } elsif ($format eq 'plain') {
3259                 my $refs = git_get_references("tags");
3260                 my $tagname = git_get_rev_name_tags($hash);
3261                 my $filename = basename($project) . "-$hash.patch";
3262
3263                 print $cgi->header(
3264                         -type => 'text/plain',
3265                         -charset => 'utf-8',
3266                         -expires => $expires,
3267                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3268                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3269                 print <<TEXT;
3270 From: $co{'author'}
3271 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3272 Subject: $co{'title'}
3273 TEXT
3274                 print "X-Git-Tag: $tagname\n" if $tagname;
3275                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3276
3277                 foreach my $line (@{$co{'comment'}}) {
3278                         print "$line\n";
3279                 }
3280                 print "---\n\n";
3281         }
3282
3283         # write patch
3284         if ($format eq 'html') {
3285                 git_difftree_body(\@difftree, $hash, $hash_parent);
3286                 print "<br/>\n";
3287
3288                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3289                 close $fd;
3290                 print "</div>\n"; # class="page_body"
3291                 git_footer_html();
3292
3293         } elsif ($format eq 'plain') {
3294                 local $/ = undef;
3295                 print <$fd>;
3296                 close $fd
3297                         or print "Reading git-diff-tree failed\n";
3298         }
3299 }
3300
3301 sub git_commitdiff_plain {
3302         git_commitdiff('plain');
3303 }
3304
3305 sub git_history {
3306         if (!defined $hash_base) {
3307                 $hash_base = git_get_head_hash($project);
3308         }
3309         if (!defined $page) {
3310                 $page = 0;
3311         }
3312         my $ftype;
3313         my %co = parse_commit($hash_base);
3314         if (!%co) {
3315                 die_error(undef, "Unknown commit object");
3316         }
3317
3318         my $refs = git_get_references();
3319         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3320
3321         if (!defined $hash && defined $file_name) {
3322                 $hash = git_get_hash_by_path($hash_base, $file_name);
3323         }
3324         if (defined $hash) {
3325                 $ftype = git_get_type($hash);
3326         }
3327
3328         open my $fd, "-|",
3329                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3330                         or die_error(undef, "Open git-rev-list-failed");
3331         my @revlist = map { chomp; $_ } <$fd>;
3332         close $fd
3333                 or die_error(undef, "Reading git-rev-list failed");
3334
3335         my $paging_nav = '';
3336         if ($page > 0) {
3337                 $paging_nav .=
3338                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3339                                                file_name=>$file_name)},
3340                                 "first");
3341                 $paging_nav .= " &sdot; " .
3342                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3343                                                file_name=>$file_name, page=>$page-1),
3344                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3345         } else {
3346                 $paging_nav .= "first";
3347                 $paging_nav .= " &sdot; prev";
3348         }
3349         if ($#revlist >= (100 * ($page+1)-1)) {
3350                 $paging_nav .= " &sdot; " .
3351                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3352                                                file_name=>$file_name, page=>$page+1),
3353                                  -accesskey => "n", -title => "Alt-n"}, "next");
3354         } else {
3355                 $paging_nav .= " &sdot; next";
3356         }
3357         my $next_link = '';
3358         if ($#revlist >= (100 * ($page+1)-1)) {
3359                 $next_link =
3360                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3361                                                file_name=>$file_name, page=>$page+1),
3362                                  -title => "Alt-n"}, "next");
3363         }
3364
3365         git_header_html();
3366         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3367         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3368         git_print_page_path($file_name, $ftype, $hash_base);
3369
3370         git_history_body(\@revlist, ($page * 100), $#revlist,
3371                          $refs, $hash_base, $ftype, $next_link);
3372
3373         git_footer_html();
3374 }
3375
3376 sub git_search {
3377         if (!defined $searchtext) {
3378                 die_error(undef, "Text field empty");
3379         }
3380         if (!defined $hash) {
3381                 $hash = git_get_head_hash($project);
3382         }
3383         my %co = parse_commit($hash);
3384         if (!%co) {
3385                 die_error(undef, "Unknown commit object");
3386         }
3387
3388         my $commit_search = 1;
3389         my $author_search = 0;
3390         my $committer_search = 0;
3391         my $pickaxe_search = 0;
3392         if ($searchtext =~ s/^author\\://i) {
3393                 $author_search = 1;
3394         } elsif ($searchtext =~ s/^committer\\://i) {
3395                 $committer_search = 1;
3396         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3397                 $commit_search = 0;
3398                 $pickaxe_search = 1;
3399
3400                 # pickaxe may take all resources of your box and run for several minutes
3401                 # with every query - so decide by yourself how public you make this feature
3402                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3403                 if (!$have_pickaxe) {
3404                         die_error('403 Permission denied', "Permission denied");
3405                 }
3406         }
3407         git_header_html();
3408         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3409         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3410
3411         print "<table cellspacing=\"0\">\n";
3412         my $alternate = 1;
3413         if ($commit_search) {
3414                 $/ = "\0";
3415                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3416                 while (my $commit_text = <$fd>) {
3417                         if (!grep m/$searchtext/i, $commit_text) {
3418                                 next;
3419                         }
3420                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3421                                 next;
3422                         }
3423                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3424                                 next;
3425                         }
3426                         my @commit_lines = split "\n", $commit_text;
3427                         my %co = parse_commit(undef, \@commit_lines);
3428                         if (!%co) {
3429                                 next;
3430                         }
3431                         if ($alternate) {
3432                                 print "<tr class=\"dark\">\n";
3433                         } else {
3434                                 print "<tr class=\"light\">\n";
3435                         }
3436                         $alternate ^= 1;
3437                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3438                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3439                               "<td>" .
3440                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3441                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3442                         my $comment = $co{'comment'};
3443                         foreach my $line (@$comment) {
3444                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3445                                         my $lead = esc_html($1) || "";
3446                                         $lead = chop_str($lead, 30, 10);
3447                                         my $match = esc_html($2) || "";
3448                                         my $trail = esc_html($3) || "";
3449                                         $trail = chop_str($trail, 30, 10);
3450                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3451                                         print chop_str($text, 80, 5) . "<br/>\n";
3452                                 }
3453                         }
3454                         print "</td>\n" .
3455                               "<td class=\"link\">" .
3456                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3457                               " | " .
3458                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3459                         print "</td>\n" .
3460                               "</tr>\n";
3461                 }
3462                 close $fd;
3463         }
3464
3465         if ($pickaxe_search) {
3466                 $/ = "\n";
3467                 my $git_command = git_cmd_str();
3468                 open my $fd, "-|", "$git_command rev-list $hash | " .
3469                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3470                 undef %co;
3471                 my @files;
3472                 while (my $line = <$fd>) {
3473                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3474                                 my %set;
3475                                 $set{'file'} = $6;
3476                                 $set{'from_id'} = $3;
3477                                 $set{'to_id'} = $4;
3478                                 $set{'id'} = $set{'to_id'};
3479                                 if ($set{'id'} =~ m/0{40}/) {
3480                                         $set{'id'} = $set{'from_id'};
3481                                 }
3482                                 if ($set{'id'} =~ m/0{40}/) {
3483                                         next;
3484                                 }
3485                                 push @files, \%set;
3486                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3487                                 if (%co) {
3488                                         if ($alternate) {
3489                                                 print "<tr class=\"dark\">\n";
3490                                         } else {
3491                                                 print "<tr class=\"light\">\n";
3492                                         }
3493                                         $alternate ^= 1;
3494                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3495                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3496                                               "<td>" .
3497                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3498                                                       -class => "list subject"},
3499                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3500                                         while (my $setref = shift @files) {
3501                                                 my %set = %$setref;
3502                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3503                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3504                                                               -class => "list"},
3505                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3506                                                       "<br/>\n";
3507                                         }
3508                                         print "</td>\n" .
3509                                               "<td class=\"link\">" .
3510                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3511                                               " | " .
3512                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3513                                         print "</td>\n" .
3514                                               "</tr>\n";
3515                                 }
3516                                 %co = parse_commit($1);
3517                         }
3518                 }
3519                 close $fd;
3520         }
3521         print "</table>\n";
3522         git_footer_html();
3523 }
3524
3525 sub git_shortlog {
3526         my $head = git_get_head_hash($project);
3527         if (!defined $hash) {
3528                 $hash = $head;
3529         }
3530         if (!defined $page) {
3531                 $page = 0;
3532         }
3533         my $refs = git_get_references();
3534
3535         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3536         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3537                 or die_error(undef, "Open git-rev-list failed");
3538         my @revlist = map { chomp; $_ } <$fd>;
3539         close $fd;
3540
3541         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3542         my $next_link = '';
3543         if ($#revlist >= (100 * ($page+1)-1)) {
3544                 $next_link =
3545                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3546                                  -title => "Alt-n"}, "next");
3547         }
3548
3549
3550         git_header_html();
3551         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3552         git_print_header_div('summary', $project);
3553
3554         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3555
3556         git_footer_html();
3557 }
3558
3559 ## ......................................................................
3560 ## feeds (RSS, OPML)
3561
3562 sub git_rss {
3563         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3564         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3565                 or die_error(undef, "Open git-rev-list failed");
3566         my @revlist = map { chomp; $_ } <$fd>;
3567         close $fd or die_error(undef, "Reading git-rev-list failed");
3568         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3569         print <<XML;
3570 <?xml version="1.0" encoding="utf-8"?>
3571 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3572 <channel>
3573 <title>$project $my_uri $my_url</title>
3574 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3575 <description>$project log</description>
3576 <language>en</language>
3577 XML
3578
3579         for (my $i = 0; $i <= $#revlist; $i++) {
3580                 my $commit = $revlist[$i];
3581                 my %co = parse_commit($commit);
3582                 # we read 150, we always show 30 and the ones more recent than 48 hours
3583                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3584                         last;
3585                 }
3586                 my %cd = parse_date($co{'committer_epoch'});
3587                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3588                         $co{'parent'}, $co{'id'}
3589                         or next;
3590                 my @difftree = map { chomp; $_ } <$fd>;
3591                 close $fd
3592                         or next;
3593                 print "<item>\n" .
3594                       "<title>" .
3595                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3596                       "</title>\n" .
3597                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3598                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3599                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3600                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3601                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3602                       "<content:encoded>" .
3603                       "<![CDATA[\n";
3604                 my $comment = $co{'comment'};
3605                 foreach my $line (@$comment) {
3606                         $line = to_utf8($line);
3607                         print "$line<br/>\n";
3608                 }
3609                 print "<br/>\n";
3610                 foreach my $line (@difftree) {
3611                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3612                                 next;
3613                         }
3614                         my $file = esc_html(unquote($7));
3615                         $file = to_utf8($file);
3616                         print "$file<br/>\n";
3617                 }
3618                 print "]]>\n" .
3619                       "</content:encoded>\n" .
3620                       "</item>\n";
3621         }
3622         print "</channel></rss>";
3623 }
3624
3625 sub git_opml {
3626         my @list = git_get_projects_list();
3627
3628         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3629         print <<XML;
3630 <?xml version="1.0" encoding="utf-8"?>
3631 <opml version="1.0">
3632 <head>
3633   <title>$site_name Git OPML Export</title>
3634 </head>
3635 <body>
3636 <outline text="git RSS feeds">
3637 XML
3638
3639         foreach my $pr (@list) {
3640                 my %proj = %$pr;
3641                 my $head = git_get_head_hash($proj{'path'});
3642                 if (!defined $head) {
3643                         next;
3644                 }
3645                 $git_dir = "$projectroot/$proj{'path'}";
3646                 my %co = parse_commit($head);
3647                 if (!%co) {
3648                         next;
3649                 }
3650
3651                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3652                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3653                 my $html = "$my_url?p=$proj{'path'};a=summary";
3654                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3655         }
3656         print <<XML;
3657 </outline>
3658 </body>
3659 </opml>
3660 XML
3661 }