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