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