Lady’s Gitweb - Gitweb/blob - 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 $site_name = "++GITWEB_SITENAME++"
  43                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45 # filename of html text to include at top of each page
  46 our $site_header = "++GITWEB_SITE_HEADER++";
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49 # filename of html text to include at bottom of each page
  50 our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52 # URI of stylesheets
  53 our @stylesheets = ("++GITWEB_CSS++");
  54 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55 our $stylesheet = undef;
  56
  57 # URI of GIT logo (72x27 size)
  58 our $logo = "++GITWEB_LOGO++";
  59 # URI of GIT favicon, assumed to be image/png type
  60 our $favicon = "++GITWEB_FAVICON++";
  61
  62 # URI and label (title) of GIT logo link
  63 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  64 #our $logo_label = "git documentation";
  65 our $logo_url = "http://git.or.cz/";
  66 our $logo_label = "git homepage";
  67
  68 # source of projects list
  69 our $projects_list = "++GITWEB_LIST++";
  70
  71 # show repository only if this file exists
  72 # (only effective if this variable evaluates to true)
  73 our $export_ok = "++GITWEB_EXPORT_OK++";
  74
  75 # only allow viewing of repositories also shown on the overview page
  76 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  77
  78 # list of git base URLs used for URL to where fetch project from,
  79 # i.e. full URL is "$git_base_url/$project"
  80 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  81
  82 # default blob_plain mimetype and default charset for text/plain blob
  83 our $default_blob_plain_mimetype = 'text/plain';
  84 our $default_text_plain_charset  = undef;
  85
  86 # file to use for guessing MIME types before trying /etc/mime.types
  87 # (relative to the current git repository)
  88 our $mimetypes_file = undef;
  89
  90 # You define site-wide feature defaults here; override them with
  91 # $GITWEB_CONFIG as necessary.
  92 our %feature = (
  93         # feature => {
  94         #       'sub' => feature-sub (subroutine),
  95         #       'override' => allow-override (boolean),
  96         #       'default' => [ default options...] (array reference)}
  97         #
  98         # if feature is overridable (it means that allow-override has true value,
  99         # then feature-sub will be called with default options as parameters;
 100         # return value of feature-sub indicates if to enable specified feature
 101         #
 102         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 103
 104         # Enable the 'blame' blob view, showing the last commit that modified
 105         # each line in the file. This can be very CPU-intensive.
 106
 107         # To enable system wide have in $GITWEB_CONFIG
 108         # $feature{'blame'}{'default'} = [1];
 109         # To have project specific config enable override in $GITWEB_CONFIG
 110         # $feature{'blame'}{'override'} = 1;
 111         # and in project config gitweb.blame = 0|1;
 112         'blame' => {
 113                 'sub' => \&feature_blame,
 114                 'override' => 0,
 115                 'default' => [0]},
 116
 117         # Enable the 'snapshot' link, providing a compressed tarball of any
 118         # tree. This can potentially generate high traffic if you have large
 119         # project.
 120
 121         # To disable system wide have in $GITWEB_CONFIG
 122         # $feature{'snapshot'}{'default'} = [undef];
 123         # To have project specific config enable override in $GITWEB_CONFIG
 124         # $feature{'blame'}{'override'} = 1;
 125         # and in project config gitweb.snapshot = none|gzip|bzip2;
 126         'snapshot' => {
 127                 'sub' => \&feature_snapshot,
 128                 'override' => 0,
 129                 #         => [content-encoding, suffix, program]
 130                 'default' => ['x-gzip', 'gz', 'gzip']},
 131
 132         # Enable the pickaxe search, which will list the commits that modified
 133         # a given string in a file. This can be practical and quite faster
 134         # alternative to 'blame', but still potentially CPU-intensive.
 135
 136         # To enable system wide have in $GITWEB_CONFIG
 137         # $feature{'pickaxe'}{'default'} = [1];
 138         # To have project specific config enable override in $GITWEB_CONFIG
 139         # $feature{'pickaxe'}{'override'} = 1;
 140         # and in project config gitweb.pickaxe = 0|1;
 141         'pickaxe' => {
 142                 'sub' => \&feature_pickaxe,
 143                 'override' => 0,
 144                 'default' => [1]},
 145
 146         # Make gitweb use an alternative format of the URLs which can be
 147         # more readable and natural-looking: project name is embedded
 148         # directly in the path and the query string contains other
 149         # auxiliary information. All gitweb installations recognize
 150         # URL in either format; this configures in which formats gitweb
 151         # generates links.
 152
 153         # To enable system wide have in $GITWEB_CONFIG
 154         # $feature{'pathinfo'}{'default'} = [1];
 155         # Project specific override is not supported.
 156
 157         # Note that you will need to change the default location of CSS,
 158         # favicon, logo and possibly other files to an absolute URL. Also,
 159         # if gitweb.cgi serves as your indexfile, you will need to force
 160         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 161         'pathinfo' => {
 162                 'override' => 0,
 163                 'default' => [0]},
 164
 165         # Make gitweb consider projects in project root subdirectories
 166         # to be forks of existing projects. Given project $projname.git,
 167         # projects matching $projname/*.git will not be shown in the main
 168         # projects list, instead a '+' mark will be added to $projname
 169         # there and a 'forks' view will be enabled for the project, listing
 170         # all the forks. This feature is supported only if project list
 171         # is taken from a directory, not file.
 172
 173         # To enable system wide have in $GITWEB_CONFIG
 174         # $feature{'forks'}{'default'} = [1];
 175         # Project specific override is not supported.
 176         'forks' => {
 177                 'override' => 0,
 178                 'default' => [0]},
 179 );
 180
 181 sub gitweb_check_feature {
 182         my ($name) = @_;
 183         return unless exists $feature{$name};
 184         my ($sub, $override, @defaults) = (
 185                 $feature{$name}{'sub'},
 186                 $feature{$name}{'override'},
 187                 @{$feature{$name}{'default'}});
 188         if (!$override) { return @defaults; }
 189         if (!defined $sub) {
 190                 warn "feature $name is not overrideable";
 191                 return @defaults;
 192         }
 193         return $sub->(@defaults);
 194 }
 195
 196 sub feature_blame {
 197         my ($val) = git_get_project_config('blame', '--bool');
 198
 199         if ($val eq 'true') {
 200                 return 1;
 201         } elsif ($val eq 'false') {
 202                 return 0;
 203         }
 204
 205         return $_[0];
 206 }
 207
 208 sub feature_snapshot {
 209         my ($ctype, $suffix, $command) = @_;
 210
 211         my ($val) = git_get_project_config('snapshot');
 212
 213         if ($val eq 'gzip') {
 214                 return ('x-gzip', 'gz', 'gzip');
 215         } elsif ($val eq 'bzip2') {
 216                 return ('x-bzip2', 'bz2', 'bzip2');
 217         } elsif ($val eq 'none') {
 218                 return ();
 219         }
 220
 221         return ($ctype, $suffix, $command);
 222 }
 223
 224 sub gitweb_have_snapshot {
 225         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 226         my $have_snapshot = (defined $ctype && defined $suffix);
 227
 228         return $have_snapshot;
 229 }
 230
 231 sub feature_pickaxe {
 232         my ($val) = git_get_project_config('pickaxe', '--bool');
 233
 234         if ($val eq 'true') {
 235                 return (1);
 236         } elsif ($val eq 'false') {
 237                 return (0);
 238         }
 239
 240         return ($_[0]);
 241 }
 242
 243 # checking HEAD file with -e is fragile if the repository was
 244 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 245 # and then pruned.
 246 sub check_head_link {
 247         my ($dir) = @_;
 248         my $headfile = "$dir/HEAD";
 249         return ((-e $headfile) ||
 250                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 251 }
 252
 253 sub check_export_ok {
 254         my ($dir) = @_;
 255         return (check_head_link($dir) &&
 256                 (!$export_ok || -e "$dir/$export_ok"));
 257 }
 258
 259 # rename detection options for git-diff and git-diff-tree
 260 # - default is '-M', with the cost proportional to
 261 #   (number of removed files) * (number of new files).
 262 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 263 #   (number of changed files + number of removed files) * (number of new files)
 264 # - even more costly is '-C', '--find-copies-harder' with cost
 265 #   (number of files in the original tree) * (number of new files)
 266 # - one might want to include '-B' option, e.g. '-B', '-M'
 267 our @diff_opts = ('-M'); # taken from git_commit
 268
 269 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 270 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 271
 272 # version of the core git binary
 273 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 274
 275 $projects_list ||= $projectroot;
 276
 277 # ======================================================================
 278 # input validation and dispatch
 279 our $action = $cgi->param('a');
 280 if (defined $action) {
 281         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 282                 die_error(undef, "Invalid action parameter");
 283         }
 284 }
 285
 286 # parameters which are pathnames
 287 our $project = $cgi->param('p');
 288 if (defined $project) {
 289         if (!validate_pathname($project) ||
 290             !(-d "$projectroot/$project") ||
 291             !check_head_link("$projectroot/$project") ||
 292             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 293             ($strict_export && !project_in_list($project))) {
 294                 undef $project;
 295                 die_error(undef, "No such project");
 296         }
 297 }
 298
 299 our $file_name = $cgi->param('f');
 300 if (defined $file_name) {
 301         if (!validate_pathname($file_name)) {
 302                 die_error(undef, "Invalid file parameter");
 303         }
 304 }
 305
 306 our $file_parent = $cgi->param('fp');
 307 if (defined $file_parent) {
 308         if (!validate_pathname($file_parent)) {
 309                 die_error(undef, "Invalid file parent parameter");
 310         }
 311 }
 312
 313 # parameters which are refnames
 314 our $hash = $cgi->param('h');
 315 if (defined $hash) {
 316         if (!validate_refname($hash)) {
 317                 die_error(undef, "Invalid hash parameter");
 318         }
 319 }
 320
 321 our $hash_parent = $cgi->param('hp');
 322 if (defined $hash_parent) {
 323         if (!validate_refname($hash_parent)) {
 324                 die_error(undef, "Invalid hash parent parameter");
 325         }
 326 }
 327
 328 our $hash_base = $cgi->param('hb');
 329 if (defined $hash_base) {
 330         if (!validate_refname($hash_base)) {
 331                 die_error(undef, "Invalid hash base parameter");
 332         }
 333 }
 334
 335 our $hash_parent_base = $cgi->param('hpb');
 336 if (defined $hash_parent_base) {
 337         if (!validate_refname($hash_parent_base)) {
 338                 die_error(undef, "Invalid hash parent base parameter");
 339         }
 340 }
 341
 342 # other parameters
 343 our $page = $cgi->param('pg');
 344 if (defined $page) {
 345         if ($page =~ m/[^0-9]/) {
 346                 die_error(undef, "Invalid page parameter");
 347         }
 348 }
 349
 350 our $searchtext = $cgi->param('s');
 351 if (defined $searchtext) {
 352         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 353                 die_error(undef, "Invalid search parameter");
 354         }
 355         $searchtext = quotemeta $searchtext;
 356 }
 357
 358 our $searchtype = $cgi->param('st');
 359 if (defined $searchtype) {
 360         if ($searchtype =~ m/[^a-z]/) {
 361                 die_error(undef, "Invalid searchtype parameter");
 362         }
 363 }
 364
 365 # now read PATH_INFO and use it as alternative to parameters
 366 sub evaluate_path_info {
 367         return if defined $project;
 368         my $path_info = $ENV{"PATH_INFO"};
 369         return if !$path_info;
 370         $path_info =~ s,^/+,,;
 371         return if !$path_info;
 372         # find which part of PATH_INFO is project
 373         $project = $path_info;
 374         $project =~ s,/+$,,;
 375         while ($project && !check_head_link("$projectroot/$project")) {
 376                 $project =~ s,/*[^/]*$,,;
 377         }
 378         # validate project
 379         $project = validate_pathname($project);
 380         if (!$project ||
 381             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 382             ($strict_export && !project_in_list($project))) {
 383                 undef $project;
 384                 return;
 385         }
 386         # do not change any parameters if an action is given using the query string
 387         return if $action;
 388         $path_info =~ s,^$project/*,,;
 389         my ($refname, $pathname) = split(/:/, $path_info, 2);
 390         if (defined $pathname) {
 391                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 392                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 393                 $pathname =~ s,^/+,,;
 394                 if (!$pathname || substr($pathname, -1) eq "/") {
 395                         $action  ||= "tree";
 396                         $pathname =~ s,/$,,;
 397                 } else {
 398                         $action  ||= "blob_plain";
 399                 }
 400                 $hash_base ||= validate_refname($refname);
 401                 $file_name ||= validate_pathname($pathname);
 402         } elsif (defined $refname) {
 403                 # we got "project.git/branch"
 404                 $action ||= "shortlog";
 405                 $hash   ||= validate_refname($refname);
 406         }
 407 }
 408 evaluate_path_info();
 409
 410 # path to the current git repository
 411 our $git_dir;
 412 $git_dir = "$projectroot/$project" if $project;
 413
 414 # dispatch
 415 my %actions = (
 416         "blame" => \&git_blame2,
 417         "blobdiff" => \&git_blobdiff,
 418         "blobdiff_plain" => \&git_blobdiff_plain,
 419         "blob" => \&git_blob,
 420         "blob_plain" => \&git_blob_plain,
 421         "commitdiff" => \&git_commitdiff,
 422         "commitdiff_plain" => \&git_commitdiff_plain,
 423         "commit" => \&git_commit,
 424         "forks" => \&git_forks,
 425         "heads" => \&git_heads,
 426         "history" => \&git_history,
 427         "log" => \&git_log,
 428         "rss" => \&git_rss,
 429         "search" => \&git_search,
 430         "search_help" => \&git_search_help,
 431         "shortlog" => \&git_shortlog,
 432         "summary" => \&git_summary,
 433         "tag" => \&git_tag,
 434         "tags" => \&git_tags,
 435         "tree" => \&git_tree,
 436         "snapshot" => \&git_snapshot,
 437         # those below don't need $project
 438         "opml" => \&git_opml,
 439         "project_list" => \&git_project_list,
 440         "project_index" => \&git_project_index,
 441 );
 442
 443 if (defined $project) {
 444         $action ||= 'summary';
 445 } else {
 446         $action ||= 'project_list';
 447 }
 448 if (!defined($actions{$action})) {
 449         die_error(undef, "Unknown action");
 450 }
 451 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 452     !$project) {
 453         die_error(undef, "Project needed");
 454 }
 455 $actions{$action}->();
 456 exit;
 457
 458 ## ======================================================================
 459 ## action links
 460
 461 sub href(%) {
 462         my %params = @_;
 463         my $href = $my_uri;
 464
 465         # XXX: Warning: If you touch this, check the search form for updating,
 466         # too.
 467
 468         my @mapping = (
 469                 project => "p",
 470                 action => "a",
 471                 file_name => "f",
 472                 file_parent => "fp",
 473                 hash => "h",
 474                 hash_parent => "hp",
 475                 hash_base => "hb",
 476                 hash_parent_base => "hpb",
 477                 page => "pg",
 478                 order => "o",
 479                 searchtext => "s",
 480                 searchtype => "st",
 481         );
 482         my %mapping = @mapping;
 483
 484         $params{'project'} = $project unless exists $params{'project'};
 485
 486         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 487         if ($use_pathinfo) {
 488                 # use PATH_INFO for project name
 489                 $href .= "/$params{'project'}" if defined $params{'project'};
 490                 delete $params{'project'};
 491
 492                 # Summary just uses the project path URL
 493                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 494                         delete $params{'action'};
 495                 }
 496         }
 497
 498         # now encode the parameters explicitly
 499         my @result = ();
 500         for (my $i = 0; $i < @mapping; $i += 2) {
 501                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 502                 if (defined $params{$name}) {
 503                         push @result, $symbol . "=" . esc_param($params{$name});
 504                 }
 505         }
 506         $href .= "?" . join(';', @result) if scalar @result;
 507
 508         return $href;
 509 }
 510
 511
 512 ## ======================================================================
 513 ## validation, quoting/unquoting and escaping
 514
 515 sub validate_pathname {
 516         my $input = shift || return undef;
 517
 518         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 519         # at the beginning, at the end, and between slashes.
 520         # also this catches doubled slashes
 521         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 522                 return undef;
 523         }
 524         # no null characters
 525         if ($input =~ m!\0!) {
 526                 return undef;
 527         }
 528         return $input;
 529 }
 530
 531 sub validate_refname {
 532         my $input = shift || return undef;
 533
 534         # textual hashes are O.K.
 535         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 536                 return $input;
 537         }
 538         # it must be correct pathname
 539         $input = validate_pathname($input)
 540                 or return undef;
 541         # restrictions on ref name according to git-check-ref-format
 542         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 543                 return undef;
 544         }
 545         return $input;
 546 }
 547
 548 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 549 sub to_utf8 {
 550         my $str = shift;
 551         return decode("utf8", $str, Encode::FB_DEFAULT);
 552 }
 553
 554 # quote unsafe chars, but keep the slash, even when it's not
 555 # correct, but quoted slashes look too horrible in bookmarks
 556 sub esc_param {
 557         my $str = shift;
 558         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 559         $str =~ s/\+/%2B/g;
 560         $str =~ s/ /\+/g;
 561         return $str;
 562 }
 563
 564 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 565 sub esc_url {
 566         my $str = shift;
 567         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 568         $str =~ s/\+/%2B/g;
 569         $str =~ s/ /\+/g;
 570         return $str;
 571 }
 572
 573 # replace invalid utf8 character with SUBSTITUTION sequence
 574 sub esc_html {
 575         my $str = shift;
 576         $str = to_utf8($str);
 577         $str = escapeHTML($str);
 578         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 579         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 580         return $str;
 581 }
 582
 583 # git may return quoted and escaped filenames
 584 sub unquote {
 585         my $str = shift;
 586         if ($str =~ m/^"(.*)"$/) {
 587                 $str = $1;
 588                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 589         }
 590         return $str;
 591 }
 592
 593 # escape tabs (convert tabs to spaces)
 594 sub untabify {
 595         my $line = shift;
 596
 597         while ((my $pos = index($line, "\t")) != -1) {
 598                 if (my $count = (8 - ($pos % 8))) {
 599                         my $spaces = ' ' x $count;
 600                         $line =~ s/\t/$spaces/;
 601                 }
 602         }
 603
 604         return $line;
 605 }
 606
 607 sub project_in_list {
 608         my $project = shift;
 609         my @list = git_get_projects_list();
 610         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 611 }
 612
 613 ## ----------------------------------------------------------------------
 614 ## HTML aware string manipulation
 615
 616 sub chop_str {
 617         my $str = shift;
 618         my $len = shift;
 619         my $add_len = shift || 10;
 620
 621         # allow only $len chars, but don't cut a word if it would fit in $add_len
 622         # if it doesn't fit, cut it if it's still longer than the dots we would add
 623         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 624         my $body = $1;
 625         my $tail = $2;
 626         if (length($tail) > 4) {
 627                 $tail = " ...";
 628                 $body =~ s/&[^;]*$//; # remove chopped character entities
 629         }
 630         return "$body$tail";
 631 }
 632
 633 ## ----------------------------------------------------------------------
 634 ## functions returning short strings
 635
 636 # CSS class for given age value (in seconds)
 637 sub age_class {
 638         my $age = shift;
 639
 640         if ($age < 60*60*2) {
 641                 return "age0";
 642         } elsif ($age < 60*60*24*2) {
 643                 return "age1";
 644         } else {
 645                 return "age2";
 646         }
 647 }
 648
 649 # convert age in seconds to "nn units ago" string
 650 sub age_string {
 651         my $age = shift;
 652         my $age_str;
 653
 654         if ($age > 60*60*24*365*2) {
 655                 $age_str = (int $age/60/60/24/365);
 656                 $age_str .= " years ago";
 657         } elsif ($age > 60*60*24*(365/12)*2) {
 658                 $age_str = int $age/60/60/24/(365/12);
 659                 $age_str .= " months ago";
 660         } elsif ($age > 60*60*24*7*2) {
 661                 $age_str = int $age/60/60/24/7;
 662                 $age_str .= " weeks ago";
 663         } elsif ($age > 60*60*24*2) {
 664                 $age_str = int $age/60/60/24;
 665                 $age_str .= " days ago";
 666         } elsif ($age > 60*60*2) {
 667                 $age_str = int $age/60/60;
 668                 $age_str .= " hours ago";
 669         } elsif ($age > 60*2) {
 670                 $age_str = int $age/60;
 671                 $age_str .= " min ago";
 672         } elsif ($age > 2) {
 673                 $age_str = int $age;
 674                 $age_str .= " sec ago";
 675         } else {
 676                 $age_str .= " right now";
 677         }
 678         return $age_str;
 679 }
 680
 681 # convert file mode in octal to symbolic file mode string
 682 sub mode_str {
 683         my $mode = oct shift;
 684
 685         if (S_ISDIR($mode & S_IFMT)) {
 686                 return 'drwxr-xr-x';
 687         } elsif (S_ISLNK($mode)) {
 688                 return 'lrwxrwxrwx';
 689         } elsif (S_ISREG($mode)) {
 690                 # git cares only about the executable bit
 691                 if ($mode & S_IXUSR) {
 692                         return '-rwxr-xr-x';
 693                 } else {
 694                         return '-rw-r--r--';
 695                 };
 696         } else {
 697                 return '----------';
 698         }
 699 }
 700
 701 # convert file mode in octal to file type string
 702 sub file_type {
 703         my $mode = shift;
 704
 705         if ($mode !~ m/^[0-7]+$/) {
 706                 return $mode;
 707         } else {
 708                 $mode = oct $mode;
 709         }
 710
 711         if (S_ISDIR($mode & S_IFMT)) {
 712                 return "directory";
 713         } elsif (S_ISLNK($mode)) {
 714                 return "symlink";
 715         } elsif (S_ISREG($mode)) {
 716                 return "file";
 717         } else {
 718                 return "unknown";
 719         }
 720 }
 721
 722 ## ----------------------------------------------------------------------
 723 ## functions returning short HTML fragments, or transforming HTML fragments
 724 ## which don't beling to other sections
 725
 726 # format line of commit message or tag comment
 727 sub format_log_line_html {
 728         my $line = shift;
 729
 730         $line = esc_html($line);
 731         $line =~ s/ /&nbsp;/g;
 732         if ($line =~ m/([0-9a-fA-F]{40})/) {
 733                 my $hash_text = $1;
 734                 if (git_get_type($hash_text) eq "commit") {
 735                         my $link =
 736                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 737                                         -class => "text"}, $hash_text);
 738                         $line =~ s/$hash_text/$link/;
 739                 }
 740         }
 741         return $line;
 742 }
 743
 744 # format marker of refs pointing to given object
 745 sub format_ref_marker {
 746         my ($refs, $id) = @_;
 747         my $markers = '';
 748
 749         if (defined $refs->{$id}) {
 750                 foreach my $ref (@{$refs->{$id}}) {
 751                         my ($type, $name) = qw();
 752                         # e.g. tags/v2.6.11 or heads/next
 753                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 754                                 $type = $1;
 755                                 $name = $2;
 756                         } else {
 757                                 $type = "ref";
 758                                 $name = $ref;
 759                         }
 760
 761                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 762                 }
 763         }
 764
 765         if ($markers) {
 766                 return ' <span class="refs">'. $markers . '</span>';
 767         } else {
 768                 return "";
 769         }
 770 }
 771
 772 # format, perhaps shortened and with markers, title line
 773 sub format_subject_html {
 774         my ($long, $short, $href, $extra) = @_;
 775         $extra = '' unless defined($extra);
 776
 777         if (length($short) < length($long)) {
 778                 return $cgi->a({-href => $href, -class => "list subject",
 779                                 -title => to_utf8($long)},
 780                        esc_html($short) . $extra);
 781         } else {
 782                 return $cgi->a({-href => $href, -class => "list subject"},
 783                        esc_html($long)  . $extra);
 784         }
 785 }
 786
 787 sub format_diff_line {
 788         my $line = shift;
 789         my $char = substr($line, 0, 1);
 790         my $diff_class = "";
 791
 792         chomp $line;
 793
 794         if ($char eq '+') {
 795                 $diff_class = " add";
 796         } elsif ($char eq "-") {
 797                 $diff_class = " rem";
 798         } elsif ($char eq "@") {
 799                 $diff_class = " chunk_header";
 800         } elsif ($char eq "\\") {
 801                 $diff_class = " incomplete";
 802         }
 803         $line = untabify($line);
 804         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 805 }
 806
 807 ## ----------------------------------------------------------------------
 808 ## git utility subroutines, invoking git commands
 809
 810 # returns path to the core git executable and the --git-dir parameter as list
 811 sub git_cmd {
 812         return $GIT, '--git-dir='.$git_dir;
 813 }
 814
 815 # returns path to the core git executable and the --git-dir parameter as string
 816 sub git_cmd_str {
 817         return join(' ', git_cmd());
 818 }
 819
 820 # get HEAD ref of given project as hash
 821 sub git_get_head_hash {
 822         my $project = shift;
 823         my $o_git_dir = $git_dir;
 824         my $retval = undef;
 825         $git_dir = "$projectroot/$project";
 826         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 827                 my $head = <$fd>;
 828                 close $fd;
 829                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 830                         $retval = $1;
 831                 }
 832         }
 833         if (defined $o_git_dir) {
 834                 $git_dir = $o_git_dir;
 835         }
 836         return $retval;
 837 }
 838
 839 # get type of given object
 840 sub git_get_type {
 841         my $hash = shift;
 842
 843         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 844         my $type = <$fd>;
 845         close $fd or return;
 846         chomp $type;
 847         return $type;
 848 }
 849
 850 sub git_get_project_config {
 851         my ($key, $type) = @_;
 852
 853         return unless ($key);
 854         $key =~ s/^gitweb\.//;
 855         return if ($key =~ m/\W/);
 856
 857         my @x = (git_cmd(), 'repo-config');
 858         if (defined $type) { push @x, $type; }
 859         push @x, "--get";
 860         push @x, "gitweb.$key";
 861         my $val = qx(@x);
 862         chomp $val;
 863         return ($val);
 864 }
 865
 866 # get hash of given path at given ref
 867 sub git_get_hash_by_path {
 868         my $base = shift;
 869         my $path = shift || return undef;
 870         my $type = shift;
 871
 872         $path =~ s,/+$,,;
 873
 874         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 875                 or die_error(undef, "Open git-ls-tree failed");
 876         my $line = <$fd>;
 877         close $fd or return undef;
 878
 879         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 880         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 881         if (defined $type && $type ne $2) {
 882                 # type doesn't match
 883                 return undef;
 884         }
 885         return $3;
 886 }
 887
 888 ## ......................................................................
 889 ## git utility functions, directly accessing git repository
 890
 891 sub git_get_project_description {
 892         my $path = shift;
 893
 894         open my $fd, "$projectroot/$path/description" or return undef;
 895         my $descr = <$fd>;
 896         close $fd;
 897         chomp $descr;
 898         return $descr;
 899 }
 900
 901 sub git_get_project_url_list {
 902         my $path = shift;
 903
 904         open my $fd, "$projectroot/$path/cloneurl" or return;
 905         my @git_project_url_list = map { chomp; $_ } <$fd>;
 906         close $fd;
 907
 908         return wantarray ? @git_project_url_list : \@git_project_url_list;
 909 }
 910
 911 sub git_get_projects_list {
 912         my ($filter) = @_;
 913         my @list;
 914
 915         $filter ||= '';
 916         $filter =~ s/\.git$//;
 917
 918         if (-d $projects_list) {
 919                 # search in directory
 920                 my $dir = $projects_list . ($filter ? "/$filter" : '');
 921                 my $pfxlen = length("$dir");
 922
 923                 my $check_forks = gitweb_check_feature('forks');
 924
 925                 File::Find::find({
 926                         follow_fast => 1, # follow symbolic links
 927                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 928                         wanted => sub {
 929                                 # skip project-list toplevel, if we get it.
 930                                 return if (m!^[/.]$!);
 931                                 # only directories can be git repositories
 932                                 return unless (-d $_);
 933
 934                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 935                                 # we check related file in $projectroot
 936                                 if ($check_forks and $subdir =~ m#/.#) {
 937                                         $File::Find::prune = 1;
 938                                 } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
 939                                         push @list, { path => ($filter ? "$filter/" : '') . $subdir };
 940                                         $File::Find::prune = 1;
 941                                 }
 942                         },
 943                 }, "$dir");
 944
 945         } elsif (-f $projects_list) {
 946                 # read from file(url-encoded):
 947                 # 'git%2Fgit.git Linus+Torvalds'
 948                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 949                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 950                 open my ($fd), $projects_list or return;
 951                 while (my $line = <$fd>) {
 952                         chomp $line;
 953                         my ($path, $owner) = split ' ', $line;
 954                         $path = unescape($path);
 955                         $owner = unescape($owner);
 956                         if (!defined $path) {
 957                                 next;
 958                         }
 959                         if (check_export_ok("$projectroot/$path")) {
 960                                 my $pr = {
 961                                         path => $path,
 962                                         owner => to_utf8($owner),
 963                                 };
 964                                 push @list, $pr
 965                         }
 966                 }
 967                 close $fd;
 968         }
 969         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 970         return @list;
 971 }
 972
 973 sub git_get_project_owner {
 974         my $project = shift;
 975         my $owner;
 976
 977         return undef unless $project;
 978
 979         # read from file (url-encoded):
 980         # 'git%2Fgit.git Linus+Torvalds'
 981         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 982         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 983         if (-f $projects_list) {
 984                 open (my $fd , $projects_list);
 985                 while (my $line = <$fd>) {
 986                         chomp $line;
 987                         my ($pr, $ow) = split ' ', $line;
 988                         $pr = unescape($pr);
 989                         $ow = unescape($ow);
 990                         if ($pr eq $project) {
 991                                 $owner = to_utf8($ow);
 992                                 last;
 993                         }
 994                 }
 995                 close $fd;
 996         }
 997         if (!defined $owner) {
 998                 $owner = get_file_owner("$projectroot/$project");
 999         }
1000
1001         return $owner;
1002 }
1003
1004 sub git_get_last_activity {
1005         my ($path) = @_;
1006         my $fd;
1007
1008         $git_dir = "$projectroot/$path";
1009         open($fd, "-|", git_cmd(), 'for-each-ref',
1010              '--format=%(refname) %(committer)',
1011              '--sort=-committerdate',
1012              'refs/heads') or return;
1013         my $most_recent = <$fd>;
1014         close $fd or return;
1015         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1016                 my $timestamp = $1;
1017                 my $age = time - $timestamp;
1018                 return ($age, age_string($age));
1019         }
1020 }
1021
1022 sub git_get_references {
1023         my $type = shift || "";
1024         my %refs;
1025         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1026         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1027         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1028                 or return;
1029
1030         while (my $line = <$fd>) {
1031                 chomp $line;
1032                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1033                         if (defined $refs{$1}) {
1034                                 push @{$refs{$1}}, $2;
1035                         } else {
1036                                 $refs{$1} = [ $2 ];
1037                         }
1038                 }
1039         }
1040         close $fd or return;
1041         return \%refs;
1042 }
1043
1044 sub git_get_rev_name_tags {
1045         my $hash = shift || return undef;
1046
1047         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1048                 or return;
1049         my $name_rev = <$fd>;
1050         close $fd;
1051
1052         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1053                 return $1;
1054         } else {
1055                 # catches also '$hash undefined' output
1056                 return undef;
1057         }
1058 }
1059
1060 ## ----------------------------------------------------------------------
1061 ## parse to hash functions
1062
1063 sub parse_date {
1064         my $epoch = shift;
1065         my $tz = shift || "-0000";
1066
1067         my %date;
1068         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1069         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1070         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1071         $date{'hour'} = $hour;
1072         $date{'minute'} = $min;
1073         $date{'mday'} = $mday;
1074         $date{'day'} = $days[$wday];
1075         $date{'month'} = $months[$mon];
1076         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1077                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1078         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1079                              $mday, $months[$mon], $hour ,$min;
1080
1081         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1082         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1083         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1084         $date{'hour_local'} = $hour;
1085         $date{'minute_local'} = $min;
1086         $date{'tz_local'} = $tz;
1087         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1088                                    1900+$year, $mon+1, $mday,
1089                                    $hour, $min, $sec, $tz);
1090         return %date;
1091 }
1092
1093 sub parse_tag {
1094         my $tag_id = shift;
1095         my %tag;
1096         my @comment;
1097
1098         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1099         $tag{'id'} = $tag_id;
1100         while (my $line = <$fd>) {
1101                 chomp $line;
1102                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1103                         $tag{'object'} = $1;
1104                 } elsif ($line =~ m/^type (.+)$/) {
1105                         $tag{'type'} = $1;
1106                 } elsif ($line =~ m/^tag (.+)$/) {
1107                         $tag{'name'} = $1;
1108                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1109                         $tag{'author'} = $1;
1110                         $tag{'epoch'} = $2;
1111                         $tag{'tz'} = $3;
1112                 } elsif ($line =~ m/--BEGIN/) {
1113                         push @comment, $line;
1114                         last;
1115                 } elsif ($line eq "") {
1116                         last;
1117                 }
1118         }
1119         push @comment, <$fd>;
1120         $tag{'comment'} = \@comment;
1121         close $fd or return;
1122         if (!defined $tag{'name'}) {
1123                 return
1124         };
1125         return %tag
1126 }
1127
1128 sub parse_commit {
1129         my $commit_id = shift;
1130         my $commit_text = shift;
1131
1132         my @commit_lines;
1133         my %co;
1134
1135         if (defined $commit_text) {
1136                 @commit_lines = @$commit_text;
1137         } else {
1138                 local $/ = "\0";
1139                 open my $fd, "-|", git_cmd(), "rev-list",
1140                         "--header", "--parents", "--max-count=1",
1141                         $commit_id, "--"
1142                         or return;
1143                 @commit_lines = split '\n', <$fd>;
1144                 close $fd or return;
1145                 pop @commit_lines;
1146         }
1147         my $header = shift @commit_lines;
1148         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1149                 return;
1150         }
1151         ($co{'id'}, my @parents) = split ' ', $header;
1152         $co{'parents'} = \@parents;
1153         $co{'parent'} = $parents[0];
1154         while (my $line = shift @commit_lines) {
1155                 last if $line eq "\n";
1156                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1157                         $co{'tree'} = $1;
1158                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1159                         $co{'author'} = $1;
1160                         $co{'author_epoch'} = $2;
1161                         $co{'author_tz'} = $3;
1162                         if ($co{'author'} =~ m/^([^<]+) </) {
1163                                 $co{'author_name'} = $1;
1164                         } else {
1165                                 $co{'author_name'} = $co{'author'};
1166                         }
1167                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1168                         $co{'committer'} = $1;
1169                         $co{'committer_epoch'} = $2;
1170                         $co{'committer_tz'} = $3;
1171                         $co{'committer_name'} = $co{'committer'};
1172                         $co{'committer_name'} =~ s/ <.*//;
1173                 }
1174         }
1175         if (!defined $co{'tree'}) {
1176                 return;
1177         };
1178
1179         foreach my $title (@commit_lines) {
1180                 $title =~ s/^    //;
1181                 if ($title ne "") {
1182                         $co{'title'} = chop_str($title, 80, 5);
1183                         # remove leading stuff of merges to make the interesting part visible
1184                         if (length($title) > 50) {
1185                                 $title =~ s/^Automatic //;
1186                                 $title =~ s/^merge (of|with) /Merge ... /i;
1187                                 if (length($title) > 50) {
1188                                         $title =~ s/(http|rsync):\/\///;
1189                                 }
1190                                 if (length($title) > 50) {
1191                                         $title =~ s/(master|www|rsync)\.//;
1192                                 }
1193                                 if (length($title) > 50) {
1194                                         $title =~ s/kernel.org:?//;
1195                                 }
1196                                 if (length($title) > 50) {
1197                                         $title =~ s/\/pub\/scm//;
1198                                 }
1199                         }
1200                         $co{'title_short'} = chop_str($title, 50, 5);
1201                         last;
1202                 }
1203         }
1204         if ($co{'title'} eq "") {
1205                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1206         }
1207         # remove added spaces
1208         foreach my $line (@commit_lines) {
1209                 $line =~ s/^    //;
1210         }
1211         $co{'comment'} = \@commit_lines;
1212
1213         my $age = time - $co{'committer_epoch'};
1214         $co{'age'} = $age;
1215         $co{'age_string'} = age_string($age);
1216         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1217         if ($age > 60*60*24*7*2) {
1218                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1219                 $co{'age_string_age'} = $co{'age_string'};
1220         } else {
1221                 $co{'age_string_date'} = $co{'age_string'};
1222                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1223         }
1224         return %co;
1225 }
1226
1227 # parse ref from ref_file, given by ref_id, with given type
1228 sub parse_ref {
1229         my $ref_file = shift;
1230         my $ref_id = shift;
1231         my $type = shift || git_get_type($ref_id);
1232         my %ref_item;
1233
1234         $ref_item{'type'} = $type;
1235         $ref_item{'id'} = $ref_id;
1236         $ref_item{'epoch'} = 0;
1237         $ref_item{'age'} = "unknown";
1238         if ($type eq "tag") {
1239                 my %tag = parse_tag($ref_id);
1240                 $ref_item{'comment'} = $tag{'comment'};
1241                 if ($tag{'type'} eq "commit") {
1242                         my %co = parse_commit($tag{'object'});
1243                         $ref_item{'epoch'} = $co{'committer_epoch'};
1244                         $ref_item{'age'} = $co{'age_string'};
1245                 } elsif (defined($tag{'epoch'})) {
1246                         my $age = time - $tag{'epoch'};
1247                         $ref_item{'epoch'} = $tag{'epoch'};
1248                         $ref_item{'age'} = age_string($age);
1249                 }
1250                 $ref_item{'reftype'} = $tag{'type'};
1251                 $ref_item{'name'} = $tag{'name'};
1252                 $ref_item{'refid'} = $tag{'object'};
1253         } elsif ($type eq "commit"){
1254                 my %co = parse_commit($ref_id);
1255                 $ref_item{'reftype'} = "commit";
1256                 $ref_item{'name'} = $ref_file;
1257                 $ref_item{'title'} = $co{'title'};
1258                 $ref_item{'refid'} = $ref_id;
1259                 $ref_item{'epoch'} = $co{'committer_epoch'};
1260                 $ref_item{'age'} = $co{'age_string'};
1261         } else {
1262                 $ref_item{'reftype'} = $type;
1263                 $ref_item{'name'} = $ref_file;
1264                 $ref_item{'refid'} = $ref_id;
1265         }
1266
1267         return %ref_item;
1268 }
1269
1270 # parse line of git-diff-tree "raw" output
1271 sub parse_difftree_raw_line {
1272         my $line = shift;
1273         my %res;
1274
1275         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1276         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1277         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1278                 $res{'from_mode'} = $1;
1279                 $res{'to_mode'} = $2;
1280                 $res{'from_id'} = $3;
1281                 $res{'to_id'} = $4;
1282                 $res{'status'} = $5;
1283                 $res{'similarity'} = $6;
1284                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1285                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1286                 } else {
1287                         $res{'file'} = unquote($7);
1288                 }
1289         }
1290         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1291         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1292                 $res{'commit'} = $1;
1293         }
1294
1295         return wantarray ? %res : \%res;
1296 }
1297
1298 # parse line of git-ls-tree output
1299 sub parse_ls_tree_line ($;%) {
1300         my $line = shift;
1301         my %opts = @_;
1302         my %res;
1303
1304         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1305         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1306
1307         $res{'mode'} = $1;
1308         $res{'type'} = $2;
1309         $res{'hash'} = $3;
1310         if ($opts{'-z'}) {
1311                 $res{'name'} = $4;
1312         } else {
1313                 $res{'name'} = unquote($4);
1314         }
1315
1316         return wantarray ? %res : \%res;
1317 }
1318
1319 ## ......................................................................
1320 ## parse to array of hashes functions
1321
1322 sub git_get_heads_list {
1323         my $limit = shift;
1324         my @headslist;
1325
1326         open my $fd, '-|', git_cmd(), 'for-each-ref',
1327                 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1328                 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1329                 'refs/heads'
1330                 or return;
1331         while (my $line = <$fd>) {
1332                 my %ref_item;
1333
1334                 chomp $line;
1335                 my ($refinfo, $committerinfo) = split(/\0/, $line);
1336                 my ($hash, $name, $title) = split(' ', $refinfo, 3);
1337                 my ($committer, $epoch, $tz) =
1338                         ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1339                 $name =~ s!^refs/heads/!!;
1340
1341                 $ref_item{'name'}  = $name;
1342                 $ref_item{'id'}    = $hash;
1343                 $ref_item{'title'} = $title || '(no commit message)';
1344                 $ref_item{'epoch'} = $epoch;
1345                 if ($epoch) {
1346                         $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1347                 } else {
1348                         $ref_item{'age'} = "unknown";
1349                 }
1350
1351                 push @headslist, \%ref_item;
1352         }
1353         close $fd;
1354
1355         return wantarray ? @headslist : \@headslist;
1356 }
1357
1358 sub git_get_tags_list {
1359         my $limit = shift;
1360         my @tagslist;
1361
1362         open my $fd, '-|', git_cmd(), 'for-each-ref',
1363                 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1364                 '--format=%(objectname) %(objecttype) %(refname) '.
1365                 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1366                 'refs/tags'
1367                 or return;
1368         while (my $line = <$fd>) {
1369                 my %ref_item;
1370
1371                 chomp $line;
1372                 my ($refinfo, $creatorinfo) = split(/\0/, $line);
1373                 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1374                 my ($creator, $epoch, $tz) =
1375                         ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1376                 $name =~ s!^refs/tags/!!;
1377
1378                 $ref_item{'type'} = $type;
1379                 $ref_item{'id'} = $id;
1380                 $ref_item{'name'} = $name;
1381                 if ($type eq "tag") {
1382                         $ref_item{'subject'} = $title;
1383                         $ref_item{'reftype'} = $reftype;
1384                         $ref_item{'refid'}   = $refid;
1385                 } else {
1386                         $ref_item{'reftype'} = $type;
1387                         $ref_item{'refid'}   = $id;
1388                 }
1389
1390                 if ($type eq "tag" || $type eq "commit") {
1391                         $ref_item{'epoch'} = $epoch;
1392                         if ($epoch) {
1393                                 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1394                         } else {
1395                                 $ref_item{'age'} = "unknown";
1396                         }
1397                 }
1398
1399                 push @tagslist, \%ref_item;
1400         }
1401         close $fd;
1402
1403         return wantarray ? @tagslist : \@tagslist;
1404 }
1405
1406 ## ----------------------------------------------------------------------
1407 ## filesystem-related functions
1408
1409 sub get_file_owner {
1410         my $path = shift;
1411
1412         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1413         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1414         if (!defined $gcos) {
1415                 return undef;
1416         }
1417         my $owner = $gcos;
1418         $owner =~ s/[,;].*$//;
1419         return to_utf8($owner);
1420 }
1421
1422 ## ......................................................................
1423 ## mimetype related functions
1424
1425 sub mimetype_guess_file {
1426         my $filename = shift;
1427         my $mimemap = shift;
1428         -r $mimemap or return undef;
1429
1430         my %mimemap;
1431         open(MIME, $mimemap) or return undef;
1432         while (<MIME>) {
1433                 next if m/^#/; # skip comments
1434                 my ($mime, $exts) = split(/\t+/);
1435                 if (defined $exts) {
1436                         my @exts = split(/\s+/, $exts);
1437                         foreach my $ext (@exts) {
1438                                 $mimemap{$ext} = $mime;
1439                         }
1440                 }
1441         }
1442         close(MIME);
1443
1444         $filename =~ /\.([^.]*)$/;
1445         return $mimemap{$1};
1446 }
1447
1448 sub mimetype_guess {
1449         my $filename = shift;
1450         my $mime;
1451         $filename =~ /\./ or return undef;
1452
1453         if ($mimetypes_file) {
1454                 my $file = $mimetypes_file;
1455                 if ($file !~ m!^/!) { # if it is relative path
1456                         # it is relative to project
1457                         $file = "$projectroot/$project/$file";
1458                 }
1459                 $mime = mimetype_guess_file($filename, $file);
1460         }
1461         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1462         return $mime;
1463 }
1464
1465 sub blob_mimetype {
1466         my $fd = shift;
1467         my $filename = shift;
1468
1469         if ($filename) {
1470                 my $mime = mimetype_guess($filename);
1471                 $mime and return $mime;
1472         }
1473
1474         # just in case
1475         return $default_blob_plain_mimetype unless $fd;
1476
1477         if (-T $fd) {
1478                 return 'text/plain' .
1479                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1480         } elsif (! $filename) {
1481                 return 'application/octet-stream';
1482         } elsif ($filename =~ m/\.png$/i) {
1483                 return 'image/png';
1484         } elsif ($filename =~ m/\.gif$/i) {
1485                 return 'image/gif';
1486         } elsif ($filename =~ m/\.jpe?g$/i) {
1487                 return 'image/jpeg';
1488         } else {
1489                 return 'application/octet-stream';
1490         }
1491 }
1492
1493 ## ======================================================================
1494 ## functions printing HTML: header, footer, error page
1495
1496 sub git_header_html {
1497         my $status = shift || "200 OK";
1498         my $expires = shift;
1499
1500         my $title = "$site_name";
1501         if (defined $project) {
1502                 $title .= " - $project";
1503                 if (defined $action) {
1504                         $title .= "/$action";
1505                         if (defined $file_name) {
1506                                 $title .= " - " . esc_html($file_name);
1507                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1508                                         $title .= "/";
1509                                 }
1510                         }
1511                 }
1512         }
1513         my $content_type;
1514         # require explicit support from the UA if we are to send the page as
1515         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1516         # we have to do this because MSIE sometimes globs '*/*', pretending to
1517         # support xhtml+xml but choking when it gets what it asked for.
1518         if (defined $cgi->http('HTTP_ACCEPT') &&
1519             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1520             $cgi->Accept('application/xhtml+xml') != 0) {
1521                 $content_type = 'application/xhtml+xml';
1522         } else {
1523                 $content_type = 'text/html';
1524         }
1525         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1526                            -status=> $status, -expires => $expires);
1527         print <<EOF;
1528 <?xml version="1.0" encoding="utf-8"?>
1529 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1530 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1531 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1532 <!-- git core binaries version $git_version -->
1533 <head>
1534 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1535 <meta name="generator" content="gitweb/$version git/$git_version"/>
1536 <meta name="robots" content="index, nofollow"/>
1537 <title>$title</title>
1538 EOF
1539 # print out each stylesheet that exist
1540         if (defined $stylesheet) {
1541 #provides backwards capability for those people who define style sheet in a config file
1542                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1543         } else {
1544                 foreach my $stylesheet (@stylesheets) {
1545                         next unless $stylesheet;
1546                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1547                 }
1548         }
1549         if (defined $project) {
1550                 printf('<link rel="alternate" title="%s log" '.
1551                        'href="%s" type="application/rss+xml"/>'."\n",
1552                        esc_param($project), href(action=>"rss"));
1553         } else {
1554                 printf('<link rel="alternate" title="%s projects list" '.
1555                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1556                        $site_name, href(project=>undef, action=>"project_index"));
1557                 printf('<link rel="alternate" title="%s projects logs" '.
1558                        'href="%s" type="text/x-opml"/>'."\n",
1559                        $site_name, href(project=>undef, action=>"opml"));
1560         }
1561         if (defined $favicon) {
1562                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1563         }
1564
1565         print "</head>\n" .
1566               "<body>\n";
1567
1568         if (-f $site_header) {
1569                 open (my $fd, $site_header);
1570                 print <$fd>;
1571                 close $fd;
1572         }
1573
1574         print "<div class=\"page_header\">\n" .
1575               $cgi->a({-href => esc_url($logo_url),
1576                        -title => $logo_label},
1577                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1578         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1579         if (defined $project) {
1580                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1581                 if (defined $action) {
1582                         print " / $action";
1583                 }
1584                 print "\n";
1585                 if (!defined $searchtext) {
1586                         $searchtext = "";
1587                 }
1588                 my $search_hash;
1589                 if (defined $hash_base) {
1590                         $search_hash = $hash_base;
1591                 } elsif (defined $hash) {
1592                         $search_hash = $hash;
1593                 } else {
1594                         $search_hash = "HEAD";
1595                 }
1596                 $cgi->param("a", "search");
1597                 $cgi->param("h", $search_hash);
1598                 $cgi->param("p", $project);
1599                 print $cgi->startform(-method => "get", -action => $my_uri) .
1600                       "<div class=\"search\">\n" .
1601                       $cgi->hidden(-name => "p") . "\n" .
1602                       $cgi->hidden(-name => "a") . "\n" .
1603                       $cgi->hidden(-name => "h") . "\n" .
1604                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1605                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1606                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1607                       " search:\n",
1608                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1609                       "</div>" .
1610                       $cgi->end_form() . "\n";
1611         }
1612         print "</div>\n";
1613 }
1614
1615 sub git_footer_html {
1616         print "<div class=\"page_footer\">\n";
1617         if (defined $project) {
1618                 my $descr = git_get_project_description($project);
1619                 if (defined $descr) {
1620                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1621                 }
1622                 print $cgi->a({-href => href(action=>"rss"),
1623                               -class => "rss_logo"}, "RSS") . "\n";
1624         } else {
1625                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1626                               -class => "rss_logo"}, "OPML") . " ";
1627                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1628                               -class => "rss_logo"}, "TXT") . "\n";
1629         }
1630         print "</div>\n" ;
1631
1632         if (-f $site_footer) {
1633                 open (my $fd, $site_footer);
1634                 print <$fd>;
1635                 close $fd;
1636         }
1637
1638         print "</body>\n" .
1639               "</html>";
1640 }
1641
1642 sub die_error {
1643         my $status = shift || "403 Forbidden";
1644         my $error = shift || "Malformed query, file missing or permission denied";
1645
1646         git_header_html($status);
1647         print <<EOF;
1648 <div class="page_body">
1649 <br /><br />
1650 $status - $error
1651 <br />
1652 </div>
1653 EOF
1654         git_footer_html();
1655         exit;
1656 }
1657
1658 ## ----------------------------------------------------------------------
1659 ## functions printing or outputting HTML: navigation
1660
1661 sub git_print_page_nav {
1662         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1663         $extra = '' if !defined $extra; # pager or formats
1664
1665         my @navs = qw(summary shortlog log commit commitdiff tree);
1666         if ($suppress) {
1667                 @navs = grep { $_ ne $suppress } @navs;
1668         }
1669
1670         my %arg = map { $_ => {action=>$_} } @navs;
1671         if (defined $head) {
1672                 for (qw(commit commitdiff)) {
1673                         $arg{$_}{hash} = $head;
1674                 }
1675                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1676                         for (qw(shortlog log)) {
1677                                 $arg{$_}{hash} = $head;
1678                         }
1679                 }
1680         }
1681         $arg{tree}{hash} = $treehead if defined $treehead;
1682         $arg{tree}{hash_base} = $treebase if defined $treebase;
1683
1684         print "<div class=\"page_nav\">\n" .
1685                 (join " | ",
1686                  map { $_ eq $current ?
1687                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1688                  } @navs);
1689         print "<br/>\n$extra<br/>\n" .
1690               "</div>\n";
1691 }
1692
1693 sub format_paging_nav {
1694         my ($action, $hash, $head, $page, $nrevs) = @_;
1695         my $paging_nav;
1696
1697
1698         if ($hash ne $head || $page) {
1699                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1700         } else {
1701                 $paging_nav .= "HEAD";
1702         }
1703
1704         if ($page > 0) {
1705                 $paging_nav .= " &sdot; " .
1706                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1707                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1708         } else {
1709                 $paging_nav .= " &sdot; prev";
1710         }
1711
1712         if ($nrevs >= (100 * ($page+1)-1)) {
1713                 $paging_nav .= " &sdot; " .
1714                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1715                                  -accesskey => "n", -title => "Alt-n"}, "next");
1716         } else {
1717                 $paging_nav .= " &sdot; next";
1718         }
1719
1720         return $paging_nav;
1721 }
1722
1723 ## ......................................................................
1724 ## functions printing or outputting HTML: div
1725
1726 sub git_print_header_div {
1727         my ($action, $title, $hash, $hash_base) = @_;
1728         my %args = ();
1729
1730         $args{action} = $action;
1731         $args{hash} = $hash if $hash;
1732         $args{hash_base} = $hash_base if $hash_base;
1733
1734         print "<div class=\"header\">\n" .
1735               $cgi->a({-href => href(%args), -class => "title"},
1736               $title ? $title : $action) .
1737               "\n</div>\n";
1738 }
1739
1740 #sub git_print_authorship (\%) {
1741 sub git_print_authorship {
1742         my $co = shift;
1743
1744         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1745         print "<div class=\"author_date\">" .
1746               esc_html($co->{'author_name'}) .
1747               " [$ad{'rfc2822'}";
1748         if ($ad{'hour_local'} < 6) {
1749                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1750                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1751         } else {
1752                 printf(" (%02d:%02d %s)",
1753                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1754         }
1755         print "]</div>\n";
1756 }
1757
1758 sub git_print_page_path {
1759         my $name = shift;
1760         my $type = shift;
1761         my $hb = shift;
1762
1763
1764         print "<div class=\"page_path\">";
1765         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1766                       -title => 'tree root'}, "[$project]");
1767         print " / ";
1768         if (defined $name) {
1769                 my @dirname = split '/', $name;
1770                 my $basename = pop @dirname;
1771                 my $fullname = '';
1772
1773                 foreach my $dir (@dirname) {
1774                         $fullname .= ($fullname ? '/' : '') . $dir;
1775                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1776                                                      hash_base=>$hb),
1777                                       -title => $fullname}, esc_html($dir));
1778                         print " / ";
1779                 }
1780                 if (defined $type && $type eq 'blob') {
1781                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1782                                                      hash_base=>$hb),
1783                                       -title => $name}, esc_html($basename));
1784                 } elsif (defined $type && $type eq 'tree') {
1785                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1786                                                      hash_base=>$hb),
1787                                       -title => $name}, esc_html($basename));
1788                         print " / ";
1789                 } else {
1790                         print esc_html($basename);
1791                 }
1792         }
1793         print "<br/></div>\n";
1794 }
1795
1796 # sub git_print_log (\@;%) {
1797 sub git_print_log ($;%) {
1798         my $log = shift;
1799         my %opts = @_;
1800
1801         if ($opts{'-remove_title'}) {
1802                 # remove title, i.e. first line of log
1803                 shift @$log;
1804         }
1805         # remove leading empty lines
1806         while (defined $log->[0] && $log->[0] eq "") {
1807                 shift @$log;
1808         }
1809
1810         # print log
1811         my $signoff = 0;
1812         my $empty = 0;
1813         foreach my $line (@$log) {
1814                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1815                         $signoff = 1;
1816                         $empty = 0;
1817                         if (! $opts{'-remove_signoff'}) {
1818                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1819                                 next;
1820                         } else {
1821                                 # remove signoff lines
1822                                 next;
1823                         }
1824                 } else {
1825                         $signoff = 0;
1826                 }
1827
1828                 # print only one empty line
1829                 # do not print empty line after signoff
1830                 if ($line eq "") {
1831                         next if ($empty || $signoff);
1832                         $empty = 1;
1833                 } else {
1834                         $empty = 0;
1835                 }
1836
1837                 print format_log_line_html($line) . "<br/>\n";
1838         }
1839
1840         if ($opts{'-final_empty_line'}) {
1841                 # end with single empty line
1842                 print "<br/>\n" unless $empty;
1843         }
1844 }
1845
1846 # print tree entry (row of git_tree), but without encompassing <tr> element
1847 sub git_print_tree_entry {
1848         my ($t, $basedir, $hash_base, $have_blame) = @_;
1849
1850         my %base_key = ();
1851         $base_key{hash_base} = $hash_base if defined $hash_base;
1852
1853         # The format of a table row is: mode list link.  Where mode is
1854         # the mode of the entry, list is the name of the entry, an href,
1855         # and link is the action links of the entry.
1856
1857         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1858         if ($t->{'type'} eq "blob") {
1859                 print "<td class=\"list\">" .
1860                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1861                                                file_name=>"$basedir$t->{'name'}", %base_key),
1862                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1863                 print "<td class=\"link\">";
1864                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1865                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1866                               "blob");
1867                 if ($have_blame) {
1868                         print " | " .
1869                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1870                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1871                                             "blame");
1872                 }
1873                 if (defined $hash_base) {
1874                         print " | " .
1875                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1876                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1877                                       "history");
1878                 }
1879                 print " | " .
1880                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1881                                                file_name=>"$basedir$t->{'name'}")},
1882                                 "raw");
1883                 print "</td>\n";
1884
1885         } elsif ($t->{'type'} eq "tree") {
1886                 print "<td class=\"list\">";
1887                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1888                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1889                               esc_html($t->{'name'}));
1890                 print "</td>\n";
1891                 print "<td class=\"link\">";
1892                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1893                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1894                               "tree");
1895                 if (defined $hash_base) {
1896                         print " | " .
1897                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1898                                                      file_name=>"$basedir$t->{'name'}")},
1899                                       "history");
1900                 }
1901                 print "</td>\n";
1902         }
1903 }
1904
1905 ## ......................................................................
1906 ## functions printing large fragments of HTML
1907
1908 sub git_difftree_body {
1909         my ($difftree, $hash, $parent) = @_;
1910
1911         print "<div class=\"list_head\">\n";
1912         if ($#{$difftree} > 10) {
1913                 print(($#{$difftree} + 1) . " files changed:\n");
1914         }
1915         print "</div>\n";
1916
1917         print "<table class=\"diff_tree\">\n";
1918         my $alternate = 1;
1919         my $patchno = 0;
1920         foreach my $line (@{$difftree}) {
1921                 my %diff = parse_difftree_raw_line($line);
1922
1923                 if ($alternate) {
1924                         print "<tr class=\"dark\">\n";
1925                 } else {
1926                         print "<tr class=\"light\">\n";
1927                 }
1928                 $alternate ^= 1;
1929
1930                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1931                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1932                 if ($diff{'to_mode'} ne ('0' x 6)) {
1933                         $to_mode_oct = oct $diff{'to_mode'};
1934                         if (S_ISREG($to_mode_oct)) { # only for regular file
1935                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1936                         }
1937                         $to_file_type = file_type($diff{'to_mode'});
1938                 }
1939                 if ($diff{'from_mode'} ne ('0' x 6)) {
1940                         $from_mode_oct = oct $diff{'from_mode'};
1941                         if (S_ISREG($to_mode_oct)) { # only for regular file
1942                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1943                         }
1944                         $from_file_type = file_type($diff{'from_mode'});
1945                 }
1946
1947                 if ($diff{'status'} eq "A") { # created
1948                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1949                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1950                         $mode_chng   .= "]</span>";
1951                         print "<td>";
1952                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1953                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1954                                       -class => "list"}, esc_html($diff{'file'}));
1955                         print "</td>\n";
1956                         print "<td>$mode_chng</td>\n";
1957                         print "<td class=\"link\">";
1958                         if ($action eq 'commitdiff') {
1959                                 # link to patch
1960                                 $patchno++;
1961                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1962                         }
1963                         print "</td>\n";
1964
1965                 } elsif ($diff{'status'} eq "D") { # deleted
1966                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1967                         print "<td>";
1968                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1969                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1970                                        -class => "list"}, esc_html($diff{'file'}));
1971                         print "</td>\n";
1972                         print "<td>$mode_chng</td>\n";
1973                         print "<td class=\"link\">";
1974                         if ($action eq 'commitdiff') {
1975                                 # link to patch
1976                                 $patchno++;
1977                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1978                                 print " | ";
1979                         }
1980                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1981                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1982                                       "blob") . " | ";
1983                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1984                                                      file_name=>$diff{'file'})},
1985                                       "blame") . " | ";
1986                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1987                                                      file_name=>$diff{'file'})},
1988                                       "history");
1989                         print "</td>\n";
1990
1991                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1992                         my $mode_chnge = "";
1993                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1994                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1995                                 if ($from_file_type != $to_file_type) {
1996                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1997                                 }
1998                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1999                                         if ($from_mode_str && $to_mode_str) {
2000                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2001                                         } elsif ($to_mode_str) {
2002                                                 $mode_chnge .= " mode: $to_mode_str";
2003                                         }
2004                                 }
2005                                 $mode_chnge .= "]</span>\n";
2006                         }
2007                         print "<td>";
2008                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2009                                                      hash_base=>$hash, file_name=>$diff{'file'}),
2010                                       -class => "list"}, esc_html($diff{'file'}));
2011                         print "</td>\n";
2012                         print "<td>$mode_chnge</td>\n";
2013                         print "<td class=\"link\">";
2014                         if ($action eq 'commitdiff') {
2015                                 # link to patch
2016                                 $patchno++;
2017                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2018                                       " | ";
2019                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2020                                 # "commit" view and modified file (not onlu mode changed)
2021                                 print $cgi->a({-href => href(action=>"blobdiff",
2022                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2023                                                              hash_base=>$hash, hash_parent_base=>$parent,
2024                                                              file_name=>$diff{'file'})},
2025                                               "diff") .
2026                                       " | ";
2027                         }
2028                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2029                                                      hash_base=>$hash, file_name=>$diff{'file'})},
2030                                       "blob") . " | ";
2031                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2032                                                      file_name=>$diff{'file'})},
2033                                       "blame") . " | ";
2034                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2035                                                      file_name=>$diff{'file'})},
2036                                       "history");
2037                         print "</td>\n";
2038
2039                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2040                         my %status_name = ('R' => 'moved', 'C' => 'copied');
2041                         my $nstatus = $status_name{$diff{'status'}};
2042                         my $mode_chng = "";
2043                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2044                                 # mode also for directories, so we cannot use $to_mode_str
2045                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2046                         }
2047                         print "<td>" .
2048                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2049                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2050                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
2051                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2052                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2053                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2054                                       -class => "list"}, esc_html($diff{'from_file'})) .
2055                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2056                               "<td class=\"link\">";
2057                         if ($action eq 'commitdiff') {
2058                                 # link to patch
2059                                 $patchno++;
2060                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2061                                       " | ";
2062                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2063                                 # "commit" view and modified file (not only pure rename or copy)
2064                                 print $cgi->a({-href => href(action=>"blobdiff",
2065                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2066                                                              hash_base=>$hash, hash_parent_base=>$parent,
2067                                                              file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2068                                               "diff") .
2069                                       " | ";
2070                         }
2071                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2072                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2073                                       "blob") . " | ";
2074                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2075                                                      file_name=>$diff{'from_file'})},
2076                                       "blame") . " | ";
2077                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2078                                                     file_name=>$diff{'from_file'})},
2079                                       "history");
2080                         print "</td>\n";
2081
2082                 } # we should not encounter Unmerged (U) or Unknown (X) status
2083                 print "</tr>\n";
2084         }
2085         print "</table>\n";
2086 }
2087
2088 sub git_patchset_body {
2089         my ($fd, $difftree, $hash, $hash_parent) = @_;
2090
2091         my $patch_idx = 0;
2092         my $in_header = 0;
2093         my $patch_found = 0;
2094         my $diffinfo;
2095
2096         print "<div class=\"patchset\">\n";
2097
2098         LINE:
2099         while (my $patch_line = <$fd>) {
2100                 chomp $patch_line;
2101
2102                 if ($patch_line =~ m/^diff /) { # "git diff" header
2103                         # beginning of patch (in patchset)
2104                         if ($patch_found) {
2105                                 # close previous patch
2106                                 print "</div>\n"; # class="patch"
2107                         } else {
2108                                 # first patch in patchset
2109                                 $patch_found = 1;
2110                         }
2111                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2112
2113                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2114                                 $diffinfo = $difftree->[$patch_idx];
2115                         } else {
2116                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2117                         }
2118                         $patch_idx++;
2119
2120                         if ($diffinfo->{'status'} eq "A") { # added
2121                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2122                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2123                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2124                                               $diffinfo->{'to_id'}) . " (new)" .
2125                                       "</div>\n"; # class="diff_info"
2126
2127                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2128                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2129                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2130                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2131                                               $diffinfo->{'from_id'}) . " (deleted)" .
2132                                       "</div>\n"; # class="diff_info"
2133
2134                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2135                                  $diffinfo->{'status'} eq "C" || # copied
2136                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2137                                 print "<div class=\"diff_info\">" .
2138                                       file_type($diffinfo->{'from_mode'}) . ":" .
2139                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2140                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2141                                               $diffinfo->{'from_id'}) .
2142                                       " -> " .
2143                                       file_type($diffinfo->{'to_mode'}) . ":" .
2144                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2145                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2146                                               $diffinfo->{'to_id'});
2147                                 print "</div>\n"; # class="diff_info"
2148
2149                         } else { # modified, mode changed, ...
2150                                 print "<div class=\"diff_info\">" .
2151                                       file_type($diffinfo->{'from_mode'}) . ":" .
2152                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2153                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2154                                               $diffinfo->{'from_id'}) .
2155                                       " -> " .
2156                                       file_type($diffinfo->{'to_mode'}) . ":" .
2157                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2158                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2159                                               $diffinfo->{'to_id'});
2160                                 print "</div>\n"; # class="diff_info"
2161                         }
2162
2163                         #print "<div class=\"diff extended_header\">\n";
2164                         $in_header = 1;
2165                         next LINE;
2166                 } # start of patch in patchset
2167
2168
2169                 if ($in_header && $patch_line =~ m/^---/) {
2170                         #print "</div>\n"; # class="diff extended_header"
2171                         $in_header = 0;
2172
2173                         my $file = $diffinfo->{'from_file'};
2174                         $file  ||= $diffinfo->{'file'};
2175                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2176                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2177                                         -class => "list"}, esc_html($file));
2178                         $patch_line =~ s|a/.*$|a/$file|g;
2179                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2180
2181                         $patch_line = <$fd>;
2182                         chomp $patch_line;
2183
2184                         #$patch_line =~ m/^+++/;
2185                         $file    = $diffinfo->{'to_file'};
2186                         $file  ||= $diffinfo->{'file'};
2187                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2188                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2189                                         -class => "list"}, esc_html($file));
2190                         $patch_line =~ s|b/.*|b/$file|g;
2191                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2192
2193                         next LINE;
2194                 }
2195                 next LINE if $in_header;
2196
2197                 print format_diff_line($patch_line);
2198         }
2199         print "</div>\n" if $patch_found; # class="patch"
2200
2201         print "</div>\n"; # class="patchset"
2202 }
2203
2204 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2205
2206 sub git_project_list_body {
2207         my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2208
2209         my $check_forks = gitweb_check_feature('forks');
2210
2211         my @projects;
2212         foreach my $pr (@$projlist) {
2213                 my (@aa) = git_get_last_activity($pr->{'path'});
2214                 unless (@aa) {
2215                         next;
2216                 }
2217                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2218                 if (!defined $pr->{'descr'}) {
2219                         my $descr = git_get_project_description($pr->{'path'}) || "";
2220                         $pr->{'descr'} = chop_str($descr, 25, 5);
2221                 }
2222                 if (!defined $pr->{'owner'}) {
2223                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2224                 }
2225                 if ($check_forks) {
2226                         my $pname = $pr->{'path'};
2227                         $pname =~ s/\.git$//;
2228                         $pr->{'forks'} = -d "$projectroot/$pname";
2229                 }
2230                 push @projects, $pr;
2231         }
2232
2233         $order ||= "project";
2234         $from = 0 unless defined $from;
2235         $to = $#projects if (!defined $to || $#projects < $to);
2236
2237         print "<table class=\"project_list\">\n";
2238         unless ($no_header) {
2239                 print "<tr>\n";
2240                 if ($check_forks) {
2241                         print "<th></th>\n";
2242                 }
2243                 if ($order eq "project") {
2244                         @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2245                         print "<th>Project</th>\n";
2246                 } else {
2247                         print "<th>" .
2248                               $cgi->a({-href => href(project=>undef, order=>'project'),
2249                                        -class => "header"}, "Project") .
2250                               "</th>\n";
2251                 }
2252                 if ($order eq "descr") {
2253                         @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2254                         print "<th>Description</th>\n";
2255                 } else {
2256                         print "<th>" .
2257                               $cgi->a({-href => href(project=>undef, order=>'descr'),
2258                                        -class => "header"}, "Description") .
2259                               "</th>\n";
2260                 }
2261                 if ($order eq "owner") {
2262                         @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2263                         print "<th>Owner</th>\n";
2264                 } else {
2265                         print "<th>" .
2266                               $cgi->a({-href => href(project=>undef, order=>'owner'),
2267                                        -class => "header"}, "Owner") .
2268                               "</th>\n";
2269                 }
2270                 if ($order eq "age") {
2271                         @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2272                         print "<th>Last Change</th>\n";
2273                 } else {
2274                         print "<th>" .
2275                               $cgi->a({-href => href(project=>undef, order=>'age'),
2276                                        -class => "header"}, "Last Change") .
2277                               "</th>\n";
2278                 }
2279                 print "<th></th>\n" .
2280                       "</tr>\n";
2281         }
2282         my $alternate = 1;
2283         for (my $i = $from; $i <= $to; $i++) {
2284                 my $pr = $projects[$i];
2285                 if ($alternate) {
2286                         print "<tr class=\"dark\">\n";
2287                 } else {
2288                         print "<tr class=\"light\">\n";
2289                 }
2290                 $alternate ^= 1;
2291                 if ($check_forks) {
2292                         print "<td>";
2293                         if ($pr->{'forks'}) {
2294                                 print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2295                         }
2296                         print "</td>\n";
2297                 }
2298                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2299                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2300                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2301                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2302                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2303                       $pr->{'age_string'} . "</td>\n" .
2304                       "<td class=\"link\">" .
2305                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2306                       $cgi->a({-href => '/git-browser/by-commit.html?r='.$pr->{'path'}}, "graphiclog") . " | " .
2307                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2308                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2309                       ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2310                       "</td>\n" .
2311                       "</tr>\n";
2312         }
2313         if (defined $extra) {
2314                 print "<tr>\n";
2315                 if ($check_forks) {
2316                         print "<td></td>\n";
2317                 }
2318                 print "<td colspan=\"5\">$extra</td>\n" .
2319                       "</tr>\n";
2320         }
2321         print "</table>\n";
2322 }
2323
2324 sub git_shortlog_body {
2325         # uses global variable $project
2326         my ($revlist, $from, $to, $refs, $extra) = @_;
2327
2328         $from = 0 unless defined $from;
2329         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2330
2331         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2332         my $alternate = 1;
2333         for (my $i = $from; $i <= $to; $i++) {
2334                 my $commit = $revlist->[$i];
2335                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2336                 my $ref = format_ref_marker($refs, $commit);
2337                 my %co = parse_commit($commit);
2338                 if ($alternate) {
2339                         print "<tr class=\"dark\">\n";
2340                 } else {
2341                         print "<tr class=\"light\">\n";
2342                 }
2343                 $alternate ^= 1;
2344                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2345                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2346                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2347                       "<td>";
2348                 print format_subject_html($co{'title'}, $co{'title_short'},
2349                                           href(action=>"commit", hash=>$commit), $ref);
2350                 print "</td>\n" .
2351                       "<td class=\"link\">" .
2352                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2353                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2354                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2355                 if (gitweb_have_snapshot()) {
2356                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2357                 }
2358                 print "</td>\n" .
2359                       "</tr>\n";
2360         }
2361         if (defined $extra) {
2362                 print "<tr>\n" .
2363                       "<td colspan=\"4\">$extra</td>\n" .
2364                       "</tr>\n";
2365         }
2366         print "</table>\n";
2367 }
2368
2369 sub git_history_body {
2370         # Warning: assumes constant type (blob or tree) during history
2371         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2372
2373         $from = 0 unless defined $from;
2374         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2375
2376         print "<table class=\"history\" cellspacing=\"0\">\n";
2377         my $alternate = 1;
2378         for (my $i = $from; $i <= $to; $i++) {
2379                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2380                         next;
2381                 }
2382
2383                 my $commit = $1;
2384                 my %co = parse_commit($commit);
2385                 if (!%co) {
2386                         next;
2387                 }
2388
2389                 my $ref = format_ref_marker($refs, $commit);
2390
2391                 if ($alternate) {
2392                         print "<tr class=\"dark\">\n";
2393                 } else {
2394                         print "<tr class=\"light\">\n";
2395                 }
2396                 $alternate ^= 1;
2397                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2398                       # shortlog uses      chop_str($co{'author_name'}, 10)
2399                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2400                       "<td>";
2401                 # originally git_history used chop_str($co{'title'}, 50)
2402                 print format_subject_html($co{'title'}, $co{'title_short'},
2403                                           href(action=>"commit", hash=>$commit), $ref);
2404                 print "</td>\n" .
2405                       "<td class=\"link\">" .
2406                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2407                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2408
2409                 if ($ftype eq 'blob') {
2410                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2411                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2412                         if (defined $blob_current && defined $blob_parent &&
2413                                         $blob_current ne $blob_parent) {
2414                                 print " | " .
2415                                         $cgi->a({-href => href(action=>"blobdiff",
2416                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2417                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2418                                                                file_name=>$file_name)},
2419                                                 "diff to current");
2420                         }
2421                 }
2422                 print "</td>\n" .
2423                       "</tr>\n";
2424         }
2425         if (defined $extra) {
2426                 print "<tr>\n" .
2427                       "<td colspan=\"4\">$extra</td>\n" .
2428                       "</tr>\n";
2429         }
2430         print "</table>\n";
2431 }
2432
2433 sub git_tags_body {
2434         # uses global variable $project
2435         my ($taglist, $from, $to, $extra) = @_;
2436         $from = 0 unless defined $from;
2437         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2438
2439         print "<table class=\"tags\" cellspacing=\"0\">\n";
2440         my $alternate = 1;
2441         for (my $i = $from; $i <= $to; $i++) {
2442                 my $entry = $taglist->[$i];
2443                 my %tag = %$entry;
2444                 my $comment = $tag{'subject'};
2445                 my $comment_short;
2446                 if (defined $comment) {
2447                         $comment_short = chop_str($comment, 30, 5);
2448                 }
2449                 if ($alternate) {
2450                         print "<tr class=\"dark\">\n";
2451                 } else {
2452                         print "<tr class=\"light\">\n";
2453                 }
2454                 $alternate ^= 1;
2455                 print "<td><i>$tag{'age'}</i></td>\n" .
2456                       "<td>" .
2457                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2458                                -class => "list name"}, esc_html($tag{'name'})) .
2459                       "</td>\n" .
2460                       "<td>";
2461                 if (defined $comment) {
2462                         print format_subject_html($comment, $comment_short,
2463                                                   href(action=>"tag", hash=>$tag{'id'}));
2464                 }
2465                 print "</td>\n" .
2466                       "<td class=\"selflink\">";
2467                 if ($tag{'type'} eq "tag") {
2468                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2469                 } else {
2470                         print "&nbsp;";
2471                 }
2472                 print "</td>\n" .
2473                       "<td class=\"link\">" . " | " .
2474                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2475                 if ($tag{'reftype'} eq "commit") {
2476                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2477                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2478                 } elsif ($tag{'reftype'} eq "blob") {
2479                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2480                 }
2481                 print "</td>\n" .
2482                       "</tr>";
2483         }
2484         if (defined $extra) {
2485                 print "<tr>\n" .
2486                       "<td colspan=\"5\">$extra</td>\n" .
2487                       "</tr>\n";
2488         }
2489         print "</table>\n";
2490 }
2491
2492 sub git_heads_body {
2493         # uses global variable $project
2494         my ($headlist, $head, $from, $to, $extra) = @_;
2495         $from = 0 unless defined $from;
2496         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2497
2498         print "<table class=\"heads\" cellspacing=\"0\">\n";
2499         my $alternate = 1;
2500         for (my $i = $from; $i <= $to; $i++) {
2501                 my $entry = $headlist->[$i];
2502                 my %ref = %$entry;
2503                 my $curr = $ref{'id'} eq $head;
2504                 if ($alternate) {
2505                         print "<tr class=\"dark\">\n";
2506                 } else {
2507                         print "<tr class=\"light\">\n";
2508                 }
2509                 $alternate ^= 1;
2510                 print "<td><i>$ref{'age'}</i></td>\n" .
2511                       ($curr ? "<td class=\"current_head\">" : "<td>") .
2512                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2513                                -class => "list name"},esc_html($ref{'name'})) .
2514                       "</td>\n" .
2515                       "<td class=\"link\">" .
2516                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2517                       $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2518                       $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2519                       "</td>\n" .
2520                       "</tr>";
2521         }
2522         if (defined $extra) {
2523                 print "<tr>\n" .
2524                       "<td colspan=\"3\">$extra</td>\n" .
2525                       "</tr>\n";
2526         }
2527         print "</table>\n";
2528 }
2529
2530 ## ======================================================================
2531 ## ======================================================================
2532 ## actions
2533
2534 sub git_project_list {
2535         my $order = $cgi->param('o');
2536         if (defined $order && $order !~ m/project|descr|owner|age/) {
2537                 die_error(undef, "Unknown order parameter");
2538         }
2539
2540         my @list = git_get_projects_list();
2541         if (!@list) {
2542                 die_error(undef, "No projects found");
2543         }
2544
2545         git_header_html();
2546         if (-f $home_text) {
2547                 print "<div class=\"index_include\">\n";
2548                 open (my $fd, $home_text);
2549                 print <$fd>;
2550                 close $fd;
2551                 print "</div>\n";
2552         }
2553         git_project_list_body(\@list, $order);
2554         git_footer_html();
2555 }
2556
2557 sub git_forks {
2558         my $order = $cgi->param('o');
2559         if (defined $order && $order !~ m/project|descr|owner|age/) {
2560                 die_error(undef, "Unknown order parameter");
2561         }
2562
2563         my @list = git_get_projects_list($project);
2564         if (!@list) {
2565                 die_error(undef, "No forks found");
2566         }
2567
2568         git_header_html();
2569         git_print_page_nav('','');
2570         git_print_header_div('summary', "$project forks");
2571         git_project_list_body(\@list, $order);
2572         git_footer_html();
2573 }
2574
2575 sub git_project_index {
2576         my @projects = git_get_projects_list($project);
2577
2578         print $cgi->header(
2579                 -type => 'text/plain',
2580                 -charset => 'utf-8',
2581                 -content_disposition => 'inline; filename="index.aux"');
2582
2583         foreach my $pr (@projects) {
2584                 if (!exists $pr->{'owner'}) {
2585                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2586                 }
2587
2588                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2589                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2590                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2591                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2592                 $path  =~ s/ /\+/g;
2593                 $owner =~ s/ /\+/g;
2594
2595                 print "$path $owner\n";
2596         }
2597 }
2598
2599 sub git_summary {
2600         my $descr = git_get_project_description($project) || "none";
2601         my $head = git_get_head_hash($project);
2602         my %co = parse_commit($head);
2603         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2604
2605         my $owner = git_get_project_owner($project);
2606
2607         my $refs = git_get_references();
2608         my @taglist  = git_get_tags_list(15);
2609         my @headlist = git_get_heads_list(15);
2610         my @forklist;
2611         if (gitweb_check_feature('forks')) {
2612                 @forklist = git_get_projects_list($project);
2613         }
2614
2615         git_header_html();
2616         git_print_page_nav('summary','', $head);
2617
2618         print "<div class=\"title\">&nbsp;</div>\n";
2619         print "<table cellspacing=\"0\">\n" .
2620               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2621               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2622               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2623         # use per project git URL list in $projectroot/$project/cloneurl
2624         # or make project git URL from git base URL and project name
2625         my $url_tag = "URL";
2626         my @url_list = git_get_project_url_list($project);
2627         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2628         foreach my $git_url (@url_list) {
2629                 next unless $git_url;
2630                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2631                 $url_tag = "";
2632         }
2633         print "</table>\n";
2634
2635         if (-s "$projectroot/$project/README.html") {
2636                 if (open my $fd, "$projectroot/$project/README.html") {
2637                         print "<div class=\"title\">readme</div>\n";
2638                         print $_ while (<$fd>);
2639                         close $fd;
2640                 }
2641         }
2642
2643         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2644                 git_get_head_hash($project), "--"
2645                 or die_error(undef, "Open git-rev-list failed");
2646         my @revlist = map { chomp; $_ } <$fd>;
2647         close $fd;
2648         git_print_header_div('shortlog');
2649         git_shortlog_body(\@revlist, 0, 15, $refs,
2650                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2651
2652         if (@taglist) {
2653                 git_print_header_div('tags');
2654                 git_tags_body(\@taglist, 0, 15,
2655                               $cgi->a({-href => href(action=>"tags")}, "..."));
2656         }
2657
2658         if (@headlist) {
2659                 git_print_header_div('heads');
2660                 git_heads_body(\@headlist, $head, 0, 15,
2661                                $cgi->a({-href => href(action=>"heads")}, "..."));
2662         }
2663
2664         if (@forklist) {
2665                 git_print_header_div('forks');
2666                 git_project_list_body(\@forklist, undef, 0, 15,
2667                                       $cgi->a({-href => href(action=>"forks")}, "..."),
2668                                       'noheader');
2669         }
2670
2671         git_footer_html();
2672 }
2673
2674 sub git_tag {
2675         my $head = git_get_head_hash($project);
2676         git_header_html();
2677         git_print_page_nav('','', $head,undef,$head);
2678         my %tag = parse_tag($hash);
2679         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2680         print "<div class=\"title_text\">\n" .
2681               "<table cellspacing=\"0\">\n" .
2682               "<tr>\n" .
2683               "<td>object</td>\n" .
2684               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2685                                $tag{'object'}) . "</td>\n" .
2686               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2687                                               $tag{'type'}) . "</td>\n" .
2688               "</tr>\n";
2689         if (defined($tag{'author'})) {
2690                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2691                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2692                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2693                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2694                         "</td></tr>\n";
2695         }
2696         print "</table>\n\n" .
2697               "</div>\n";
2698         print "<div class=\"page_body\">";
2699         my $comment = $tag{'comment'};
2700         foreach my $line (@$comment) {
2701                 print esc_html($line) . "<br/>\n";
2702         }
2703         print "</div>\n";
2704         git_footer_html();
2705 }
2706
2707 sub git_blame2 {
2708         my $fd;
2709         my $ftype;
2710
2711         my ($have_blame) = gitweb_check_feature('blame');
2712         if (!$have_blame) {
2713                 die_error('403 Permission denied', "Permission denied");
2714         }
2715         die_error('404 Not Found', "File name not defined") if (!$file_name);
2716         $hash_base ||= git_get_head_hash($project);
2717         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2718         my %co = parse_commit($hash_base)
2719                 or die_error(undef, "Reading commit failed");
2720         if (!defined $hash) {
2721                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2722                         or die_error(undef, "Error looking up file");
2723         }
2724         $ftype = git_get_type($hash);
2725         if ($ftype !~ "blob") {
2726                 die_error("400 Bad Request", "Object is not a blob");
2727         }
2728         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2729               $file_name, $hash_base)
2730                 or die_error(undef, "Open git-blame failed");
2731         git_header_html();
2732         my $formats_nav =
2733                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2734                         "blob") .
2735                 " | " .
2736                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2737                         "history") .
2738                 " | " .
2739                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2740                         "HEAD");
2741         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2742         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2743         git_print_page_path($file_name, $ftype, $hash_base);
2744         my @rev_color = (qw(light2 dark2));
2745         my $num_colors = scalar(@rev_color);
2746         my $current_color = 0;
2747         my $last_rev;
2748         print <<HTML;
2749 <div class="page_body">
2750 <table class="blame">
2751 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2752 HTML
2753         my %metainfo = ();
2754         while (1) {
2755                 $_ = <$fd>;
2756                 last unless defined $_;
2757                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2758                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2759                 if (!exists $metainfo{$full_rev}) {
2760                         $metainfo{$full_rev} = {};
2761                 }
2762                 my $meta = $metainfo{$full_rev};
2763                 while (<$fd>) {
2764                         last if (s/^\t//);
2765                         if (/^(\S+) (.*)$/) {
2766                                 $meta->{$1} = $2;
2767                         }
2768                 }
2769                 my $data = $_;
2770                 my $rev = substr($full_rev, 0, 8);
2771                 my $author = $meta->{'author'};
2772                 my %date = parse_date($meta->{'author-time'},
2773                                       $meta->{'author-tz'});
2774                 my $date = $date{'iso-tz'};
2775                 if ($group_size) {
2776                         $current_color = ++$current_color % $num_colors;
2777                 }
2778                 print "<tr class=\"$rev_color[$current_color]\">\n";
2779                 if ($group_size) {
2780                         print "<td class=\"sha1\"";
2781                         print " title=\"". esc_html($author) . ", $date\"";
2782                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2783                         print ">";
2784                         print $cgi->a({-href => href(action=>"commit",
2785                                                      hash=>$full_rev,
2786                                                      file_name=>$file_name)},
2787                                       esc_html($rev));
2788                         print "</td>\n";
2789                 }
2790                 my $blamed = href(action => 'blame',
2791                                   file_name => $meta->{'filename'},
2792                                   hash_base => $full_rev);
2793                 print "<td class=\"linenr\">";
2794                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2795                                 -id => "l$lineno",
2796                                 -class => "linenr" },
2797                               esc_html($lineno));
2798                 print "</td>";
2799                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2800                 print "</tr>\n";
2801         }
2802         print "</table>\n";
2803         print "</div>";
2804         close $fd
2805                 or print "Reading blob failed\n";
2806         git_footer_html();
2807 }
2808
2809 sub git_blame {
2810         my $fd;
2811
2812         my ($have_blame) = gitweb_check_feature('blame');
2813         if (!$have_blame) {
2814                 die_error('403 Permission denied', "Permission denied");
2815         }
2816         die_error('404 Not Found', "File name not defined") if (!$file_name);
2817         $hash_base ||= git_get_head_hash($project);
2818         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2819         my %co = parse_commit($hash_base)
2820                 or die_error(undef, "Reading commit failed");
2821         if (!defined $hash) {
2822                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2823                         or die_error(undef, "Error lookup file");
2824         }
2825         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2826                 or die_error(undef, "Open git-annotate failed");
2827         git_header_html();
2828         my $formats_nav =
2829                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2830                         "blob") .
2831                 " | " .
2832                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2833                         "history") .
2834                 " | " .
2835                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2836                         "HEAD");
2837         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2838         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2839         git_print_page_path($file_name, 'blob', $hash_base);
2840         print "<div class=\"page_body\">\n";
2841         print <<HTML;
2842 <table class="blame">
2843   <tr>
2844     <th>Commit</th>
2845     <th>Age</th>
2846     <th>Author</th>
2847     <th>Line</th>
2848     <th>Data</th>
2849   </tr>
2850 HTML
2851         my @line_class = (qw(light dark));
2852         my $line_class_len = scalar (@line_class);
2853         my $line_class_num = $#line_class;
2854         while (my $line = <$fd>) {
2855                 my $long_rev;
2856                 my $short_rev;
2857                 my $author;
2858                 my $time;
2859                 my $lineno;
2860                 my $data;
2861                 my $age;
2862                 my $age_str;
2863                 my $age_class;
2864
2865                 chomp $line;
2866                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2867
2868                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2869                         $long_rev = $1;
2870                         $author   = $2;
2871                         $time     = $3;
2872                         $lineno   = $4;
2873                         $data     = $5;
2874                 } else {
2875                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2876                         next;
2877                 }
2878                 $short_rev  = substr ($long_rev, 0, 8);
2879                 $age        = time () - $time;
2880                 $age_str    = age_string ($age);
2881                 $age_str    =~ s/ /&nbsp;/g;
2882                 $age_class  = age_class($age);
2883                 $author     = esc_html ($author);
2884                 $author     =~ s/ /&nbsp;/g;
2885
2886                 $data = untabify($data);
2887                 $data = esc_html ($data);
2888
2889                 print <<HTML;
2890   <tr class="$line_class[$line_class_num]">
2891     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2892     <td class="$age_class">$age_str</td>
2893     <td>$author</td>
2894     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2895     <td class="pre">$data</td>
2896   </tr>
2897 HTML
2898         } # while (my $line = <$fd>)
2899         print "</table>\n\n";
2900         close $fd
2901                 or print "Reading blob failed.\n";
2902         print "</div>";
2903         git_footer_html();
2904 }
2905
2906 sub git_tags {
2907         my $head = git_get_head_hash($project);
2908         git_header_html();
2909         git_print_page_nav('','', $head,undef,$head);
2910         git_print_header_div('summary', $project);
2911
2912         my @tagslist = git_get_tags_list();
2913         if (@tagslist) {
2914                 git_tags_body(\@tagslist);
2915         }
2916         git_footer_html();
2917 }
2918
2919 sub git_heads {
2920         my $head = git_get_head_hash($project);
2921         git_header_html();
2922         git_print_page_nav('','', $head,undef,$head);
2923         git_print_header_div('summary', $project);
2924
2925         my @headslist = git_get_heads_list();
2926         if (@headslist) {
2927                 git_heads_body(\@headslist, $head);
2928         }
2929         git_footer_html();
2930 }
2931
2932 sub git_blob_plain {
2933         my $expires;
2934
2935         if (!defined $hash) {
2936                 if (defined $file_name) {
2937                         my $base = $hash_base || git_get_head_hash($project);
2938                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2939                                 or die_error(undef, "Error lookup file");
2940                 } else {
2941                         die_error(undef, "No file name defined");
2942                 }
2943         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2944                 # blobs defined by non-textual hash id's can be cached
2945                 $expires = "+1d";
2946         }
2947
2948         my $type = shift;
2949         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2950                 or die_error(undef, "Couldn't cat $file_name, $hash");
2951
2952         $type ||= blob_mimetype($fd, $file_name);
2953
2954         # save as filename, even when no $file_name is given
2955         my $save_as = "$hash";
2956         if (defined $file_name) {
2957                 $save_as = $file_name;
2958         } elsif ($type =~ m/^text\//) {
2959                 $save_as .= '.txt';
2960         }
2961
2962         print $cgi->header(
2963                 -type => "$type",
2964                 -expires=>$expires,
2965                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2966         undef $/;
2967         binmode STDOUT, ':raw';
2968         print <$fd>;
2969         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2970         $/ = "\n";
2971         close $fd;
2972 }
2973
2974 sub git_blob {
2975         my $expires;
2976
2977         if (!defined $hash) {
2978                 if (defined $file_name) {
2979                         my $base = $hash_base || git_get_head_hash($project);
2980                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2981                                 or die_error(undef, "Error lookup file");
2982                 } else {
2983                         die_error(undef, "No file name defined");
2984                 }
2985         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2986                 # blobs defined by non-textual hash id's can be cached
2987                 $expires = "+1d";
2988         }
2989
2990         my ($have_blame) = gitweb_check_feature('blame');
2991         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2992                 or die_error(undef, "Couldn't cat $file_name, $hash");
2993         my $mimetype = blob_mimetype($fd, $file_name);
2994         if ($mimetype !~ m/^text\//) {
2995                 close $fd;
2996                 return git_blob_plain($mimetype);
2997         }
2998         git_header_html(undef, $expires);
2999         my $formats_nav = '';
3000         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3001                 if (defined $file_name) {
3002                         if ($have_blame) {
3003                                 $formats_nav .=
3004                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3005                                                                hash=>$hash, file_name=>$file_name)},
3006                                                 "blame") .
3007                                         " | ";
3008                         }
3009                         $formats_nav .=
3010                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3011                                                        hash=>$hash, file_name=>$file_name)},
3012                                         "history") .
3013                                 " | " .
3014                                 $cgi->a({-href => href(action=>"blob_plain",
3015                                                        hash=>$hash, file_name=>$file_name)},
3016                                         "raw") .
3017                                 " | " .
3018                                 $cgi->a({-href => href(action=>"blob",
3019                                                        hash_base=>"HEAD", file_name=>$file_name)},
3020                                         "HEAD");
3021                 } else {
3022                         $formats_nav .=
3023                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3024                 }
3025                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3026                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3027         } else {
3028                 print "<div class=\"page_nav\">\n" .
3029                       "<br/><br/></div>\n" .
3030                       "<div class=\"title\">$hash</div>\n";
3031         }
3032         git_print_page_path($file_name, "blob", $hash_base);
3033         print "<div class=\"page_body\">\n";
3034         my $nr;
3035         while (my $line = <$fd>) {
3036                 chomp $line;
3037                 $nr++;
3038                 $line = untabify($line);
3039                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3040                        $nr, $nr, $nr, esc_html($line);
3041         }
3042         close $fd
3043                 or print "Reading blob failed.\n";
3044         print "</div>";
3045         git_footer_html();
3046 }
3047
3048 sub git_tree {
3049         my $have_snapshot = gitweb_have_snapshot();
3050
3051         if (!defined $hash_base) {
3052                 $hash_base = "HEAD";
3053         }
3054         if (!defined $hash) {
3055                 if (defined $file_name) {
3056                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3057                 } else {
3058                         $hash = $hash_base;
3059                 }
3060         }
3061         $/ = "\0";
3062         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3063                 or die_error(undef, "Open git-ls-tree failed");
3064         my @entries = map { chomp; $_ } <$fd>;
3065         close $fd or die_error(undef, "Reading tree failed");
3066         $/ = "\n";
3067
3068         my $refs = git_get_references();
3069         my $ref = format_ref_marker($refs, $hash_base);
3070         git_header_html();
3071         my $basedir = '';
3072         my ($have_blame) = gitweb_check_feature('blame');
3073         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3074                 my @views_nav = ();
3075                 if (defined $file_name) {
3076                         push @views_nav,
3077                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3078                                                        hash=>$hash, file_name=>$file_name)},
3079                                         "history"),
3080                                 $cgi->a({-href => href(action=>"tree",
3081                                                        hash_base=>"HEAD", file_name=>$file_name)},
3082                                         "HEAD"),
3083                 }
3084                 if ($have_snapshot) {
3085                         # FIXME: Should be available when we have no hash base as well.
3086                         push @views_nav,
3087                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3088                                         "snapshot");
3089                 }
3090                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3091                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3092         } else {
3093                 undef $hash_base;
3094                 print "<div class=\"page_nav\">\n";
3095                 print "<br/><br/></div>\n";
3096                 print "<div class=\"title\">$hash</div>\n";
3097         }
3098         if (defined $file_name) {
3099                 $basedir = $file_name;
3100                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
3101                         $basedir .= '/';
3102                 }
3103         }
3104         git_print_page_path($file_name, 'tree', $hash_base);
3105         print "<div class=\"page_body\">\n";
3106         print "<table cellspacing=\"0\">\n";
3107         my $alternate = 1;
3108         # '..' (top directory) link if possible
3109         if (defined $hash_base &&
3110             defined $file_name && $file_name =~ m![^/]+$!) {
3111                 if ($alternate) {
3112                         print "<tr class=\"dark\">\n";
3113                 } else {
3114                         print "<tr class=\"light\">\n";
3115                 }
3116                 $alternate ^= 1;
3117
3118                 my $up = $file_name;
3119                 $up =~ s!/?[^/]+$!!;
3120                 undef $up unless $up;
3121                 # based on git_print_tree_entry
3122                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
3123                 print '<td class="list">';
3124                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3125                                              file_name=>$up)},
3126                               "..");
3127                 print "</td>\n";
3128                 print "<td class=\"link\"></td>\n";
3129
3130                 print "</tr>\n";
3131         }
3132         foreach my $line (@entries) {
3133                 my %t = parse_ls_tree_line($line, -z => 1);
3134
3135                 if ($alternate) {
3136                         print "<tr class=\"dark\">\n";
3137                 } else {
3138                         print "<tr class=\"light\">\n";
3139                 }
3140                 $alternate ^= 1;
3141
3142                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3143
3144                 print "</tr>\n";
3145         }
3146         print "</table>\n" .
3147               "</div>";
3148         git_footer_html();
3149 }
3150
3151 sub git_snapshot {
3152         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3153         my $have_snapshot = (defined $ctype && defined $suffix);
3154         if (!$have_snapshot) {
3155                 die_error('403 Permission denied', "Permission denied");
3156         }
3157
3158         if (!defined $hash) {
3159                 $hash = git_get_head_hash($project);
3160         }
3161
3162         my $filename = basename($project) . "-$hash.tar.$suffix";
3163
3164         print $cgi->header(
3165                 -type => 'application/x-tar',
3166                 -content_encoding => $ctype,
3167                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3168                 -status => '200 OK');
3169
3170         my $git = git_cmd_str();
3171         my $name = $project;
3172         $name =~ s/\047/\047\\\047\047/g;
3173         open my $fd, "-|",
3174         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3175                 or die_error(undef, "Execute git-tar-tree failed.");
3176         binmode STDOUT, ':raw';
3177         print <$fd>;
3178         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3179         close $fd;
3180
3181 }
3182
3183 sub git_log {
3184         my $head = git_get_head_hash($project);
3185         if (!defined $hash) {
3186                 $hash = $head;
3187         }
3188         if (!defined $page) {
3189                 $page = 0;
3190         }
3191         my $refs = git_get_references();
3192
3193         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3194         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3195                 or die_error(undef, "Open git-rev-list failed");
3196         my @revlist = map { chomp; $_ } <$fd>;
3197         close $fd;
3198
3199         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3200
3201         git_header_html();
3202         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3203
3204         if (!@revlist) {
3205                 my %co = parse_commit($hash);
3206
3207                 git_print_header_div('summary', $project);
3208                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3209         }
3210         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3211                 my $commit = $revlist[$i];
3212                 my $ref = format_ref_marker($refs, $commit);
3213                 my %co = parse_commit($commit);
3214                 next if !%co;
3215                 my %ad = parse_date($co{'author_epoch'});
3216                 git_print_header_div('commit',
3217                                "<span class=\"age\">$co{'age_string'}</span>" .
3218                                esc_html($co{'title'}) . $ref,
3219                                $commit);
3220                 print "<div class=\"title_text\">\n" .
3221                       "<div class=\"log_link\">\n" .
3222                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3223                       " | " .
3224                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3225                       " | " .
3226                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3227                       "<br/>\n" .
3228                       "</div>\n" .
3229                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3230                       "</div>\n";
3231
3232                 print "<div class=\"log_body\">\n";
3233                 git_print_log($co{'comment'}, -final_empty_line=> 1);
3234                 print "</div>\n";
3235         }
3236         git_footer_html();
3237 }
3238
3239 sub git_commit {
3240         my %co = parse_commit($hash);
3241         if (!%co) {
3242                 die_error(undef, "Unknown commit object");
3243         }
3244         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3245         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3246
3247         my $parent = $co{'parent'};
3248         if (!defined $parent) {
3249                 $parent = "--root";
3250         }
3251         open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3252                 @diff_opts, $parent, $hash, "--"
3253                 or die_error(undef, "Open git-diff-tree failed");
3254         my @difftree = map { chomp; $_ } <$fd>;
3255         close $fd or die_error(undef, "Reading git-diff-tree failed");
3256
3257         # non-textual hash id's can be cached
3258         my $expires;
3259         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3260                 $expires = "+1d";
3261         }
3262         my $refs = git_get_references();
3263         my $ref = format_ref_marker($refs, $co{'id'});
3264
3265         my $have_snapshot = gitweb_have_snapshot();
3266
3267         my @views_nav = ();
3268         if (defined $file_name && defined $co{'parent'}) {
3269                 push @views_nav,
3270                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3271                                 "blame");
3272         }
3273         git_header_html(undef, $expires);
3274         git_print_page_nav('commit', '',
3275                            $hash, $co{'tree'}, $hash,
3276                            join (' | ', @views_nav));
3277
3278         if (defined $co{'parent'}) {
3279                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3280         } else {
3281                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3282         }
3283         print "<div class=\"title_text\">\n" .
3284               "<table cellspacing=\"0\">\n";
3285         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3286               "<tr>" .
3287               "<td></td><td> $ad{'rfc2822'}";
3288         if ($ad{'hour_local'} < 6) {
3289                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3290                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3291         } else {
3292                 printf(" (%02d:%02d %s)",
3293                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3294         }
3295         print "</td>" .
3296               "</tr>\n";
3297         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3298         print "<tr><td></td><td> $cd{'rfc2822'}" .
3299               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3300               "</td></tr>\n";
3301         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3302         print "<tr>" .
3303               "<td>tree</td>" .
3304               "<td class=\"sha1\">" .
3305               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3306                        class => "list"}, $co{'tree'}) .
3307               "</td>" .
3308               "<td class=\"link\">" .
3309               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3310                       "tree");
3311         if ($have_snapshot) {
3312                 print " | " .
3313                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3314         }
3315         print "</td>" .
3316               "</tr>\n";
3317         my $parents = $co{'parents'};
3318         foreach my $par (@$parents) {
3319                 print "<tr>" .
3320                       "<td>parent</td>" .
3321                       "<td class=\"sha1\">" .
3322                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3323                                class => "list"}, $par) .
3324                       "</td>" .
3325                       "<td class=\"link\">" .
3326                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3327                       " | " .
3328                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3329                       "</td>" .
3330                       "</tr>\n";
3331         }
3332         print "</table>".
3333               "</div>\n";
3334
3335         print "<div class=\"page_body\">\n";
3336         git_print_log($co{'comment'});
3337         print "</div>\n";
3338
3339         git_difftree_body(\@difftree, $hash, $parent);
3340
3341         git_footer_html();
3342 }
3343
3344 sub git_blobdiff {
3345         my $format = shift || 'html';
3346
3347         my $fd;
3348         my @difftree;
3349         my %diffinfo;
3350         my $expires;
3351
3352         # preparing $fd and %diffinfo for git_patchset_body
3353         # new style URI
3354         if (defined $hash_base && defined $hash_parent_base) {
3355                 if (defined $file_name) {
3356                         # read raw output
3357                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3358                                 $hash_parent_base, $hash_base,
3359                                 "--", $file_name
3360                                 or die_error(undef, "Open git-diff-tree failed");
3361                         @difftree = map { chomp; $_ } <$fd>;
3362                         close $fd
3363                                 or die_error(undef, "Reading git-diff-tree failed");
3364                         @difftree
3365                                 or die_error('404 Not Found', "Blob diff not found");
3366
3367                 } elsif (defined $hash &&
3368                          $hash =~ /[0-9a-fA-F]{40}/) {
3369                         # try to find filename from $hash
3370
3371                         # read filtered raw output
3372                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3373                                 $hash_parent_base, $hash_base, "--"
3374                                 or die_error(undef, "Open git-diff-tree failed");
3375                         @difftree =
3376                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3377                                 # $hash == to_id
3378                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3379                                 map { chomp; $_ } <$fd>;
3380                         close $fd
3381                                 or die_error(undef, "Reading git-diff-tree failed");
3382                         @difftree
3383                                 or die_error('404 Not Found', "Blob diff not found");
3384
3385                 } else {
3386                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3387                 }
3388
3389                 if (@difftree > 1) {
3390                         die_error('404 Not Found', "Ambiguous blob diff specification");
3391                 }
3392
3393                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3394                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3395                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3396
3397                 $hash_parent ||= $diffinfo{'from_id'};
3398                 $hash        ||= $diffinfo{'to_id'};
3399
3400                 # non-textual hash id's can be cached
3401                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3402                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3403                         $expires = '+1d';
3404                 }
3405
3406                 # open patch output
3407                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3408                         '-p', $hash_parent_base, $hash_base,
3409                         "--", $file_name
3410                         or die_error(undef, "Open git-diff-tree failed");
3411         }
3412
3413         # old/legacy style URI
3414         if (!%diffinfo && # if new style URI failed
3415             defined $hash && defined $hash_parent) {
3416                 # fake git-diff-tree raw output
3417                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3418                 $diffinfo{'from_id'} = $hash_parent;
3419                 $diffinfo{'to_id'}   = $hash;
3420                 if (defined $file_name) {
3421                         if (defined $file_parent) {
3422                                 $diffinfo{'status'} = '2';
3423                                 $diffinfo{'from_file'} = $file_parent;
3424                                 $diffinfo{'to_file'}   = $file_name;
3425                         } else { # assume not renamed
3426                                 $diffinfo{'status'} = '1';
3427                                 $diffinfo{'from_file'} = $file_name;
3428                                 $diffinfo{'to_file'}   = $file_name;
3429                         }
3430                 } else { # no filename given
3431                         $diffinfo{'status'} = '2';
3432                         $diffinfo{'from_file'} = $hash_parent;
3433                         $diffinfo{'to_file'}   = $hash;
3434                 }
3435
3436                 # non-textual hash id's can be cached
3437                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3438                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3439                         $expires = '+1d';
3440                 }
3441
3442                 # open patch output
3443                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3444                         $hash_parent, $hash, "--"
3445                         or die_error(undef, "Open git-diff failed");
3446         } else  {
3447                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3448                         unless %diffinfo;
3449         }
3450
3451         # header
3452         if ($format eq 'html') {
3453                 my $formats_nav =
3454                         $cgi->a({-href => href(action=>"blobdiff_plain",
3455                                                hash=>$hash, hash_parent=>$hash_parent,
3456                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3457                                                file_name=>$file_name, file_parent=>$file_parent)},
3458                                 "raw");
3459                 git_header_html(undef, $expires);
3460                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3461                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3462                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3463                 } else {
3464                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3465                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3466                 }
3467                 if (defined $file_name) {
3468                         git_print_page_path($file_name, "blob", $hash_base);
3469                 } else {
3470                         print "<div class=\"page_path\"></div>\n";
3471                 }
3472
3473         } elsif ($format eq 'plain') {
3474                 print $cgi->header(
3475                         -type => 'text/plain',
3476                         -charset => 'utf-8',
3477                         -expires => $expires,
3478                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3479
3480                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3481
3482         } else {
3483                 die_error(undef, "Unknown blobdiff format");
3484         }
3485
3486         # patch
3487         if ($format eq 'html') {
3488                 print "<div class=\"page_body\">\n";
3489
3490                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3491                 close $fd;
3492
3493                 print "</div>\n"; # class="page_body"
3494                 git_footer_html();
3495
3496         } else {
3497                 while (my $line = <$fd>) {
3498                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3499                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3500
3501                         print $line;
3502
3503                         last if $line =~ m!^\+\+\+!;
3504                 }
3505                 local $/ = undef;
3506                 print <$fd>;
3507                 close $fd;
3508         }
3509 }
3510
3511 sub git_blobdiff_plain {
3512         git_blobdiff('plain');
3513 }
3514
3515 sub git_commitdiff {
3516         my $format = shift || 'html';
3517         my %co = parse_commit($hash);
3518         if (!%co) {
3519                 die_error(undef, "Unknown commit object");
3520         }
3521
3522         # we need to prepare $formats_nav before any parameter munging
3523         my $formats_nav;
3524         if ($format eq 'html') {
3525                 $formats_nav =
3526                         $cgi->a({-href => href(action=>"commitdiff_plain",
3527                                                hash=>$hash, hash_parent=>$hash_parent)},
3528                                 "raw");
3529
3530                 if (defined $hash_parent) {
3531                         # commitdiff with two commits given
3532                         my $hash_parent_short = $hash_parent;
3533                         if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3534                                 $hash_parent_short = substr($hash_parent, 0, 7);
3535                         }
3536                         $formats_nav .=
3537                                 ' (from: ' .
3538                                 $cgi->a({-href => href(action=>"commitdiff",
3539                                                        hash=>$hash_parent)},
3540                                         esc_html($hash_parent_short)) .
3541                                 ')';
3542                 } elsif (!$co{'parent'}) {
3543                         # --root commitdiff
3544                         $formats_nav .= ' (initial)';
3545                 } elsif (scalar @{$co{'parents'}} == 1) {
3546                         # single parent commit
3547                         $formats_nav .=
3548                                 ' (parent: ' .
3549                                 $cgi->a({-href => href(action=>"commitdiff",
3550                                                        hash=>$co{'parent'})},
3551                                         esc_html(substr($co{'parent'}, 0, 7))) .
3552                                 ')';
3553                 } else {
3554                         # merge commit
3555                         $formats_nav .=
3556                                 ' (merge: ' .
3557                                 join(' ', map {
3558                                         $cgi->a({-href => href(action=>"commitdiff",
3559                                                                hash=>$_)},
3560                                                 esc_html(substr($_, 0, 7)));
3561                                 } @{$co{'parents'}} ) .
3562                                 ')';
3563                 }
3564         }
3565
3566         if (!defined $hash_parent) {
3567                 $hash_parent = $co{'parent'} || '--root';
3568         }
3569
3570         # read commitdiff
3571         my $fd;
3572         my @difftree;
3573         if ($format eq 'html') {
3574                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3575                         "--no-commit-id", "--patch-with-raw", "--full-index",
3576                         $hash_parent, $hash, "--"
3577                         or die_error(undef, "Open git-diff-tree failed");
3578
3579                 while (chomp(my $line = <$fd>)) {
3580                         # empty line ends raw part of diff-tree output
3581                         last unless $line;
3582                         push @difftree, $line;
3583                 }
3584
3585         } elsif ($format eq 'plain') {
3586                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3587                         '-p', $hash_parent, $hash, "--"
3588                         or die_error(undef, "Open git-diff-tree failed");
3589
3590         } else {
3591                 die_error(undef, "Unknown commitdiff format");
3592         }
3593
3594         # non-textual hash id's can be cached
3595         my $expires;
3596         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3597                 $expires = "+1d";
3598         }
3599
3600         # write commit message
3601         if ($format eq 'html') {
3602                 my $refs = git_get_references();
3603                 my $ref = format_ref_marker($refs, $co{'id'});
3604
3605                 git_header_html(undef, $expires);
3606                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3607                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3608                 git_print_authorship(\%co);
3609                 print "<div class=\"page_body\">\n";
3610                 if (@{$co{'comment'}} > 1) {
3611                         print "<div class=\"log\">\n";
3612                         git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3613                         print "</div>\n"; # class="log"
3614                 }
3615
3616         } elsif ($format eq 'plain') {
3617                 my $refs = git_get_references("tags");
3618                 my $tagname = git_get_rev_name_tags($hash);
3619                 my $filename = basename($project) . "-$hash.patch";
3620
3621                 print $cgi->header(
3622                         -type => 'text/plain',
3623                         -charset => 'utf-8',
3624                         -expires => $expires,
3625                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3626                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3627                 print <<TEXT;
3628 From: $co{'author'}
3629 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3630 Subject: $co{'title'}
3631 TEXT
3632                 print "X-Git-Tag: $tagname\n" if $tagname;
3633                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3634
3635                 foreach my $line (@{$co{'comment'}}) {
3636                         print "$line\n";
3637                 }
3638                 print "---\n\n";
3639         }
3640
3641         # write patch
3642         if ($format eq 'html') {
3643                 git_difftree_body(\@difftree, $hash, $hash_parent);
3644                 print "<br/>\n";
3645
3646                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3647                 close $fd;
3648                 print "</div>\n"; # class="page_body"
3649                 git_footer_html();
3650
3651         } elsif ($format eq 'plain') {
3652                 local $/ = undef;
3653                 print <$fd>;
3654                 close $fd
3655                         or print "Reading git-diff-tree failed\n";
3656         }
3657 }
3658
3659 sub git_commitdiff_plain {
3660         git_commitdiff('plain');
3661 }
3662
3663 sub git_history {
3664         if (!defined $hash_base) {
3665                 $hash_base = git_get_head_hash($project);
3666         }
3667         if (!defined $page) {
3668                 $page = 0;
3669         }
3670         my $ftype;
3671         my %co = parse_commit($hash_base);
3672         if (!%co) {
3673                 die_error(undef, "Unknown commit object");
3674         }
3675
3676         my $refs = git_get_references();
3677         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3678
3679         if (!defined $hash && defined $file_name) {
3680                 $hash = git_get_hash_by_path($hash_base, $file_name);
3681         }
3682         if (defined $hash) {
3683                 $ftype = git_get_type($hash);
3684         }
3685
3686         open my $fd, "-|",
3687                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3688                         or die_error(undef, "Open git-rev-list-failed");
3689         my @revlist = map { chomp; $_ } <$fd>;
3690         close $fd
3691                 or die_error(undef, "Reading git-rev-list failed");
3692
3693         my $paging_nav = '';
3694         if ($page > 0) {
3695                 $paging_nav .=
3696                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3697                                                file_name=>$file_name)},
3698                                 "first");
3699                 $paging_nav .= " &sdot; " .
3700                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3701                                                file_name=>$file_name, page=>$page-1),
3702                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3703         } else {
3704                 $paging_nav .= "first";
3705                 $paging_nav .= " &sdot; prev";
3706         }
3707         if ($#revlist >= (100 * ($page+1)-1)) {
3708                 $paging_nav .= " &sdot; " .
3709                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3710                                                file_name=>$file_name, page=>$page+1),
3711                                  -accesskey => "n", -title => "Alt-n"}, "next");
3712         } else {
3713                 $paging_nav .= " &sdot; next";
3714         }
3715         my $next_link = '';
3716         if ($#revlist >= (100 * ($page+1)-1)) {
3717                 $next_link =
3718                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3719                                                file_name=>$file_name, page=>$page+1),
3720                                  -title => "Alt-n"}, "next");
3721         }
3722
3723         git_header_html();
3724         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3725         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3726         git_print_page_path($file_name, $ftype, $hash_base);
3727
3728         git_history_body(\@revlist, ($page * 100), $#revlist,
3729                          $refs, $hash_base, $ftype, $next_link);
3730
3731         git_footer_html();
3732 }
3733
3734 sub git_search {
3735         if (!defined $searchtext) {
3736                 die_error(undef, "Text field empty");
3737         }
3738         if (!defined $hash) {
3739                 $hash = git_get_head_hash($project);
3740         }
3741         my %co = parse_commit($hash);
3742         if (!%co) {
3743                 die_error(undef, "Unknown commit object");
3744         }
3745
3746         $searchtype ||= 'commit';
3747         if ($searchtype eq 'pickaxe') {
3748                 # pickaxe may take all resources of your box and run for several minutes
3749                 # with every query - so decide by yourself how public you make this feature
3750                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3751                 if (!$have_pickaxe) {
3752                         die_error('403 Permission denied', "Permission denied");
3753                 }
3754         }
3755
3756         git_header_html();
3757         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3758         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3759
3760         print "<table cellspacing=\"0\">\n";
3761         my $alternate = 1;
3762         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3763                 $/ = "\0";
3764                 open my $fd, "-|", git_cmd(), "rev-list",
3765                         "--header", "--parents", $hash, "--"
3766                         or next;
3767                 while (my $commit_text = <$fd>) {
3768                         if (!grep m/$searchtext/i, $commit_text) {
3769                                 next;
3770                         }
3771                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3772                                 next;
3773                         }
3774                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3775                                 next;
3776                         }
3777                         my @commit_lines = split "\n", $commit_text;
3778                         my %co = parse_commit(undef, \@commit_lines);
3779                         if (!%co) {
3780                                 next;
3781                         }
3782                         if ($alternate) {
3783                                 print "<tr class=\"dark\">\n";
3784                         } else {
3785                                 print "<tr class=\"light\">\n";
3786                         }
3787                         $alternate ^= 1;
3788                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3789                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3790                               "<td>" .
3791                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3792                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3793                         my $comment = $co{'comment'};
3794                         foreach my $line (@$comment) {
3795                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3796                                         my $lead = esc_html($1) || "";
3797                                         $lead = chop_str($lead, 30, 10);
3798                                         my $match = esc_html($2) || "";
3799                                         my $trail = esc_html($3) || "";
3800                                         $trail = chop_str($trail, 30, 10);
3801                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3802                                         print chop_str($text, 80, 5) . "<br/>\n";
3803                                 }
3804                         }
3805                         print "</td>\n" .
3806                               "<td class=\"link\">" .
3807                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3808                               " | " .
3809                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3810                         print "</td>\n" .
3811                               "</tr>\n";
3812                 }
3813                 close $fd;
3814         }
3815
3816         if ($searchtype eq 'pickaxe') {
3817                 $/ = "\n";
3818                 my $git_command = git_cmd_str();
3819                 open my $fd, "-|", "$git_command rev-list $hash | " .
3820                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3821                 undef %co;
3822                 my @files;
3823                 while (my $line = <$fd>) {
3824                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3825                                 my %set;
3826                                 $set{'file'} = $6;
3827                                 $set{'from_id'} = $3;
3828                                 $set{'to_id'} = $4;
3829                                 $set{'id'} = $set{'to_id'};
3830                                 if ($set{'id'} =~ m/0{40}/) {
3831                                         $set{'id'} = $set{'from_id'};
3832                                 }
3833                                 if ($set{'id'} =~ m/0{40}/) {
3834                                         next;
3835                                 }
3836                                 push @files, \%set;
3837                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3838                                 if (%co) {
3839                                         if ($alternate) {
3840                                                 print "<tr class=\"dark\">\n";
3841                                         } else {
3842                                                 print "<tr class=\"light\">\n";
3843                                         }
3844                                         $alternate ^= 1;
3845                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3846                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3847                                               "<td>" .
3848                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3849                                                       -class => "list subject"},
3850                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3851                                         while (my $setref = shift @files) {
3852                                                 my %set = %$setref;
3853                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3854                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3855                                                               -class => "list"},
3856                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3857                                                       "<br/>\n";
3858                                         }
3859                                         print "</td>\n" .
3860                                               "<td class=\"link\">" .
3861                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3862                                               " | " .
3863                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3864                                         print "</td>\n" .
3865                                               "</tr>\n";
3866                                 }
3867                                 %co = parse_commit($1);
3868                         }
3869                 }
3870                 close $fd;
3871         }
3872         print "</table>\n";
3873         git_footer_html();
3874 }
3875
3876 sub git_search_help {
3877         git_header_html();
3878         git_print_page_nav('','', $hash,$hash,$hash);
3879         print <<EOT;
3880 <dl>
3881 <dt><b>commit</b></dt>
3882 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
3883 <dt><b>author</b></dt>
3884 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
3885 <dt><b>committer</b></dt>
3886 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
3887 EOT
3888         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3889         if ($have_pickaxe) {
3890                 print <<EOT;
3891 <dt><b>pickaxe</b></dt>
3892 <dd>All commits that caused the string to appear or disappear from any file (changes that
3893 added, removed or "modified" the string) will be listed. This search can take a while and
3894 takes a lot of strain on the server, so please use it wisely.</dd>
3895 EOT
3896         }
3897         print "</dl>\n";
3898         git_footer_html();
3899 }
3900
3901 sub git_shortlog {
3902         my $head = git_get_head_hash($project);
3903         if (!defined $hash) {
3904                 $hash = $head;
3905         }
3906         if (!defined $page) {
3907                 $page = 0;
3908         }
3909         my $refs = git_get_references();
3910
3911         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3912         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3913                 or die_error(undef, "Open git-rev-list failed");
3914         my @revlist = map { chomp; $_ } <$fd>;
3915         close $fd;
3916
3917         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3918         my $next_link = '';
3919         if ($#revlist >= (100 * ($page+1)-1)) {
3920                 $next_link =
3921                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3922                                  -title => "Alt-n"}, "next");
3923         }
3924
3925
3926         git_header_html();
3927         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3928         git_print_header_div('summary', $project);
3929
3930         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3931
3932         git_footer_html();
3933 }
3934
3935 ## ......................................................................
3936 ## feeds (RSS, OPML)
3937
3938 sub git_rss {
3939         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3940         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
3941                 git_get_head_hash($project), "--"
3942                 or die_error(undef, "Open git-rev-list failed");
3943         my @revlist = map { chomp; $_ } <$fd>;
3944         close $fd or die_error(undef, "Reading git-rev-list failed");
3945         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3946         print <<XML;
3947 <?xml version="1.0" encoding="utf-8"?>
3948 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3949 <channel>
3950 <title>$project $my_uri $my_url</title>
3951 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3952 <description>$project log</description>
3953 <language>en</language>
3954 XML
3955
3956         for (my $i = 0; $i <= $#revlist; $i++) {
3957                 my $commit = $revlist[$i];
3958                 my %co = parse_commit($commit);
3959                 # we read 150, we always show 30 and the ones more recent than 48 hours
3960                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3961                         last;
3962                 }
3963                 my %cd = parse_date($co{'committer_epoch'});
3964                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3965                         $co{'parent'}, $co{'id'}, "--"
3966                         or next;
3967                 my @difftree = map { chomp; $_ } <$fd>;
3968                 close $fd
3969                         or next;
3970                 print "<item>\n" .
3971                       "<title>" .
3972                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3973                       "</title>\n" .
3974                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3975                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3976                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3977                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3978                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3979                       "<content:encoded>" .
3980                       "<![CDATA[\n";
3981                 my $comment = $co{'comment'};
3982                 foreach my $line (@$comment) {
3983                         $line = to_utf8($line);
3984                         print "$line<br/>\n";
3985                 }
3986                 print "<br/>\n";
3987                 foreach my $line (@difftree) {
3988                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3989                                 next;
3990                         }
3991                         my $file = esc_html(unquote($7));
3992                         $file = to_utf8($file);
3993                         print "$file<br/>\n";
3994                 }
3995                 print "]]>\n" .
3996                       "</content:encoded>\n" .
3997                       "</item>\n";
3998         }
3999         print "</channel></rss>";
4000 }
4001
4002 sub git_opml {
4003         my @list = git_get_projects_list();
4004
4005         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4006         print <<XML;
4007 <?xml version="1.0" encoding="utf-8"?>
4008 <opml version="1.0">
4009 <head>
4010   <title>$site_name OPML Export</title>
4011 </head>
4012 <body>
4013 <outline text="git RSS feeds">
4014 XML
4015
4016         foreach my $pr (@list) {
4017                 my %proj = %$pr;
4018                 my $head = git_get_head_hash($proj{'path'});
4019                 if (!defined $head) {
4020                         next;
4021                 }
4022                 $git_dir = "$projectroot/$proj{'path'}";
4023                 my %co = parse_commit($head);
4024                 if (!%co) {
4025                         next;
4026                 }
4027
4028                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4029                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
4030                 my $html = "$my_url?p=$proj{'path'};a=summary";
4031                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4032         }
4033         print <<XML;
4034 </outline>
4035 </body>
4036 </opml>
4037 XML
4038 }