gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++"
  43                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45 # filename of html text to include at top of each page
  46 our $site_header = "++GITWEB_SITE_HEADER++";
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49 # filename of html text to include at bottom of each page
  50 our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52 # URI of stylesheets
  53 our @stylesheets = ("++GITWEB_CSS++");
  54 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55 our $stylesheet = undef;
  56 # URI of GIT logo (72x27 size)
  57 our $logo = "++GITWEB_LOGO++";
  58 # URI of GIT favicon, assumed to be image/png type
  59 our $favicon = "++GITWEB_FAVICON++";
  60
  61 # URI and label (title) of GIT logo link
  62 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63 #our $logo_label = "git documentation";
  64 our $logo_url = "http://git.or.cz/";
  65 our $logo_label = "git homepage";
  66
  67 # source of projects list
  68 our $projects_list = "++GITWEB_LIST++";
  69
  70 # show repository only if this file exists
  71 # (only effective if this variable evaluates to true)
  72 our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74 # only allow viewing of repositories also shown on the overview page
  75 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77 # list of git base URLs used for URL to where fetch project from,
  78 # i.e. full URL is "$git_base_url/$project"
  79 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81 # default blob_plain mimetype and default charset for text/plain blob
  82 our $default_blob_plain_mimetype = 'text/plain';
  83 our $default_text_plain_charset  = undef;
  84
  85 # file to use for guessing MIME types before trying /etc/mime.types
  86 # (relative to the current git repository)
  87 our $mimetypes_file = undef;
  88
  89 # You define site-wide feature defaults here; override them with
  90 # $GITWEB_CONFIG as necessary.
  91 our %feature = (
  92         # feature => {
  93         #       'sub' => feature-sub (subroutine),
  94         #       'override' => allow-override (boolean),
  95         #       'default' => [ default options...] (array reference)}
  96         #
  97         # if feature is overridable (it means that allow-override has true value,
  98         # then feature-sub will be called with default options as parameters;
  99         # return value of feature-sub indicates if to enable specified feature
 100         #
 101         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103         # Enable the 'blame' blob view, showing the last commit that modified
 104         # each line in the file. This can be very CPU-intensive.
 105
 106         # To enable system wide have in $GITWEB_CONFIG
 107         # $feature{'blame'}{'default'} = [1];
 108         # To have project specific config enable override in $GITWEB_CONFIG
 109         # $feature{'blame'}{'override'} = 1;
 110         # and in project config gitweb.blame = 0|1;
 111         'blame' => {
 112                 'sub' => \&feature_blame,
 113                 'override' => 0,
 114                 'default' => [0]},
 115
 116         # Enable the 'snapshot' link, providing a compressed tarball of any
 117         # tree. This can potentially generate high traffic if you have large
 118         # project.
 119
 120         # To disable system wide have in $GITWEB_CONFIG
 121         # $feature{'snapshot'}{'default'} = [undef];
 122         # To have project specific config enable override in $GITWEB_CONFIG
 123         # $feature{'blame'}{'override'} = 1;
 124         # and in project config gitweb.snapshot = none|gzip|bzip2;
 125         'snapshot' => {
 126                 'sub' => \&feature_snapshot,
 127                 'override' => 0,
 128                 #         => [content-encoding, suffix, program]
 129                 'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131         # Enable the pickaxe search, which will list the commits that modified
 132         # a given string in a file. This can be practical and quite faster
 133         # alternative to 'blame', but still potentially CPU-intensive.
 134
 135         # To enable system wide have in $GITWEB_CONFIG
 136         # $feature{'pickaxe'}{'default'} = [1];
 137         # To have project specific config enable override in $GITWEB_CONFIG
 138         # $feature{'pickaxe'}{'override'} = 1;
 139         # and in project config gitweb.pickaxe = 0|1;
 140         'pickaxe' => {
 141                 'sub' => \&feature_pickaxe,
 142                 'override' => 0,
 143                 'default' => [1]},
 144
 145         # Make gitweb use an alternative format of the URLs which can be
 146         # more readable and natural-looking: project name is embedded
 147         # directly in the path and the query string contains other
 148         # auxiliary information. All gitweb installations recognize
 149         # URL in either format; this configures in which formats gitweb
 150         # generates links.
 151
 152         # To enable system wide have in $GITWEB_CONFIG
 153         # $feature{'pathinfo'}{'default'} = [1];
 154         # Project specific override is not supported.
 155
 156         # Note that you will need to change the default location of CSS,
 157         # favicon, logo and possibly other files to an absolute URL. Also,
 158         # if gitweb.cgi serves as your indexfile, you will need to force
 159         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160         'pathinfo' => {
 161                 'override' => 0,
 162                 'default' => [0]},
 163 );
 164
 165 sub gitweb_check_feature {
 166         my ($name) = @_;
 167         return unless exists $feature{$name};
 168         my ($sub, $override, @defaults) = (
 169                 $feature{$name}{'sub'},
 170                 $feature{$name}{'override'},
 171                 @{$feature{$name}{'default'}});
 172         if (!$override) { return @defaults; }
 173         if (!defined $sub) {
 174                 warn "feature $name is not overrideable";
 175                 return @defaults;
 176         }
 177         return $sub->(@defaults);
 178 }
 179
 180 sub feature_blame {
 181         my ($val) = git_get_project_config('blame', '--bool');
 182
 183         if ($val eq 'true') {
 184                 return 1;
 185         } elsif ($val eq 'false') {
 186                 return 0;
 187         }
 188
 189         return $_[0];
 190 }
 191
 192 sub feature_snapshot {
 193         my ($ctype, $suffix, $command) = @_;
 194
 195         my ($val) = git_get_project_config('snapshot');
 196
 197         if ($val eq 'gzip') {
 198                 return ('x-gzip', 'gz', 'gzip');
 199         } elsif ($val eq 'bzip2') {
 200                 return ('x-bzip2', 'bz2', 'bzip2');
 201         } elsif ($val eq 'none') {
 202                 return ();
 203         }
 204
 205         return ($ctype, $suffix, $command);
 206 }
 207
 208 sub gitweb_have_snapshot {
 209         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 210         my $have_snapshot = (defined $ctype && defined $suffix);
 211
 212         return $have_snapshot;
 213 }
 214
 215 sub feature_pickaxe {
 216         my ($val) = git_get_project_config('pickaxe', '--bool');
 217
 218         if ($val eq 'true') {
 219                 return (1);
 220         } elsif ($val eq 'false') {
 221                 return (0);
 222         }
 223
 224         return ($_[0]);
 225 }
 226
 227 # checking HEAD file with -e is fragile if the repository was
 228 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 229 # and then pruned.
 230 sub check_head_link {
 231         my ($dir) = @_;
 232         my $headfile = "$dir/HEAD";
 233         return ((-e $headfile) ||
 234                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 235 }
 236
 237 sub check_export_ok {
 238         my ($dir) = @_;
 239         return (check_head_link($dir) &&
 240                 (!$export_ok || -e "$dir/$export_ok"));
 241 }
 242
 243 # rename detection options for git-diff and git-diff-tree
 244 # - default is '-M', with the cost proportional to
 245 #   (number of removed files) * (number of new files).
 246 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 247 #   (number of changed files + number of removed files) * (number of new files)
 248 # - even more costly is '-C', '--find-copies-harder' with cost
 249 #   (number of files in the original tree) * (number of new files)
 250 # - one might want to include '-B' option, e.g. '-B', '-M'
 251 our @diff_opts = ('-M'); # taken from git_commit
 252
 253 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 254 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 255
 256 # version of the core git binary
 257 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 258
 259 $projects_list ||= $projectroot;
 260
 261 # ======================================================================
 262 # input validation and dispatch
 263 our $action = $cgi->param('a');
 264 if (defined $action) {
 265         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 266                 die_error(undef, "Invalid action parameter");
 267         }
 268 }
 269
 270 # parameters which are pathnames
 271 our $project = $cgi->param('p');
 272 if (defined $project) {
 273         if (!validate_pathname($project) ||
 274             !(-d "$projectroot/$project") ||
 275             !check_head_link("$projectroot/$project") ||
 276             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 277             ($strict_export && !project_in_list($project))) {
 278                 undef $project;
 279                 die_error(undef, "No such project");
 280         }
 281 }
 282
 283 our $file_name = $cgi->param('f');
 284 if (defined $file_name) {
 285         if (!validate_pathname($file_name)) {
 286                 die_error(undef, "Invalid file parameter");
 287         }
 288 }
 289
 290 our $file_parent = $cgi->param('fp');
 291 if (defined $file_parent) {
 292         if (!validate_pathname($file_parent)) {
 293                 die_error(undef, "Invalid file parent parameter");
 294         }
 295 }
 296
 297 # parameters which are refnames
 298 our $hash = $cgi->param('h');
 299 if (defined $hash) {
 300         if (!validate_refname($hash)) {
 301                 die_error(undef, "Invalid hash parameter");
 302         }
 303 }
 304
 305 our $hash_parent = $cgi->param('hp');
 306 if (defined $hash_parent) {
 307         if (!validate_refname($hash_parent)) {
 308                 die_error(undef, "Invalid hash parent parameter");
 309         }
 310 }
 311
 312 our $hash_base = $cgi->param('hb');
 313 if (defined $hash_base) {
 314         if (!validate_refname($hash_base)) {
 315                 die_error(undef, "Invalid hash base parameter");
 316         }
 317 }
 318
 319 our $hash_parent_base = $cgi->param('hpb');
 320 if (defined $hash_parent_base) {
 321         if (!validate_refname($hash_parent_base)) {
 322                 die_error(undef, "Invalid hash parent base parameter");
 323         }
 324 }
 325
 326 # other parameters
 327 our $page = $cgi->param('pg');
 328 if (defined $page) {
 329         if ($page =~ m/[^0-9]/) {
 330                 die_error(undef, "Invalid page parameter");
 331         }
 332 }
 333
 334 our $searchtext = $cgi->param('s');
 335 if (defined $searchtext) {
 336         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 337                 die_error(undef, "Invalid search parameter");
 338         }
 339         $searchtext = quotemeta $searchtext;
 340 }
 341
 342 our $searchtype = $cgi->param('st');
 343 if (defined $searchtype) {
 344         if ($searchtype =~ m/[^a-z]/) {
 345                 die_error(undef, "Invalid searchtype parameter");
 346         }
 347 }
 348
 349 # now read PATH_INFO and use it as alternative to parameters
 350 sub evaluate_path_info {
 351         return if defined $project;
 352         my $path_info = $ENV{"PATH_INFO"};
 353         return if !$path_info;
 354         $path_info =~ s,^/+,,;
 355         return if !$path_info;
 356         # find which part of PATH_INFO is project
 357         $project = $path_info;
 358         $project =~ s,/+$,,;
 359         while ($project && !check_head_link("$projectroot/$project")) {
 360                 $project =~ s,/*[^/]*$,,;
 361         }
 362         # validate project
 363         $project = validate_pathname($project);
 364         if (!$project ||
 365             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 366             ($strict_export && !project_in_list($project))) {
 367                 undef $project;
 368                 return;
 369         }
 370         # do not change any parameters if an action is given using the query string
 371         return if $action;
 372         $path_info =~ s,^$project/*,,;
 373         my ($refname, $pathname) = split(/:/, $path_info, 2);
 374         if (defined $pathname) {
 375                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 376                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 377                 $pathname =~ s,^/+,,;
 378                 if (!$pathname || substr($pathname, -1) eq "/") {
 379                         $action  ||= "tree";
 380                         $pathname =~ s,/$,,;
 381                 } else {
 382                         $action  ||= "blob_plain";
 383                 }
 384                 $hash_base ||= validate_refname($refname);
 385                 $file_name ||= validate_pathname($pathname);
 386         } elsif (defined $refname) {
 387                 # we got "project.git/branch"
 388                 $action ||= "shortlog";
 389                 $hash   ||= validate_refname($refname);
 390         }
 391 }
 392 evaluate_path_info();
 393
 394 # path to the current git repository
 395 our $git_dir;
 396 $git_dir = "$projectroot/$project" if $project;
 397
 398 # dispatch
 399 my %actions = (
 400         "blame" => \&git_blame2,
 401         "blobdiff" => \&git_blobdiff,
 402         "blobdiff_plain" => \&git_blobdiff_plain,
 403         "blob" => \&git_blob,
 404         "blob_plain" => \&git_blob_plain,
 405         "commitdiff" => \&git_commitdiff,
 406         "commitdiff_plain" => \&git_commitdiff_plain,
 407         "commit" => \&git_commit,
 408         "heads" => \&git_heads,
 409         "history" => \&git_history,
 410         "log" => \&git_log,
 411         "rss" => \&git_rss,
 412         "search" => \&git_search,
 413         "search_help" => \&git_search_help,
 414         "shortlog" => \&git_shortlog,
 415         "summary" => \&git_summary,
 416         "tag" => \&git_tag,
 417         "tags" => \&git_tags,
 418         "tree" => \&git_tree,
 419         "snapshot" => \&git_snapshot,
 420         # those below don't need $project
 421         "opml" => \&git_opml,
 422         "project_list" => \&git_project_list,
 423         "project_index" => \&git_project_index,
 424 );
 425
 426 if (defined $project) {
 427         $action ||= 'summary';
 428 } else {
 429         $action ||= 'project_list';
 430 }
 431 if (!defined($actions{$action})) {
 432         die_error(undef, "Unknown action");
 433 }
 434 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 435     !$project) {
 436         die_error(undef, "Project needed");
 437 }
 438 $actions{$action}->();
 439 exit;
 440
 441 ## ======================================================================
 442 ## action links
 443
 444 sub href(%) {
 445         my %params = @_;
 446         my $href = $my_uri;
 447
 448         # XXX: Warning: If you touch this, check the search form for updating,
 449         # too.
 450
 451         my @mapping = (
 452                 project => "p",
 453                 action => "a",
 454                 file_name => "f",
 455                 file_parent => "fp",
 456                 hash => "h",
 457                 hash_parent => "hp",
 458                 hash_base => "hb",
 459                 hash_parent_base => "hpb",
 460                 page => "pg",
 461                 order => "o",
 462                 searchtext => "s",
 463                 searchtype => "st",
 464         );
 465         my %mapping = @mapping;
 466
 467         $params{'project'} = $project unless exists $params{'project'};
 468
 469         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 470         if ($use_pathinfo) {
 471                 # use PATH_INFO for project name
 472                 $href .= "/$params{'project'}" if defined $params{'project'};
 473                 delete $params{'project'};
 474
 475                 # Summary just uses the project path URL
 476                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 477                         delete $params{'action'};
 478                 }
 479         }
 480
 481         # now encode the parameters explicitly
 482         my @result = ();
 483         for (my $i = 0; $i < @mapping; $i += 2) {
 484                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 485                 if (defined $params{$name}) {
 486                         push @result, $symbol . "=" . esc_param($params{$name});
 487                 }
 488         }
 489         $href .= "?" . join(';', @result) if scalar @result;
 490
 491         return $href;
 492 }
 493
 494
 495 ## ======================================================================
 496 ## validation, quoting/unquoting and escaping
 497
 498 sub validate_pathname {
 499         my $input = shift || return undef;
 500
 501         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 502         # at the beginning, at the end, and between slashes.
 503         # also this catches doubled slashes
 504         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 505                 return undef;
 506         }
 507         # no null characters
 508         if ($input =~ m!\0!) {
 509                 return undef;
 510         }
 511         return $input;
 512 }
 513
 514 sub validate_refname {
 515         my $input = shift || return undef;
 516
 517         # textual hashes are O.K.
 518         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 519                 return $input;
 520         }
 521         # it must be correct pathname
 522         $input = validate_pathname($input)
 523                 or return undef;
 524         # restrictions on ref name according to git-check-ref-format
 525         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 526                 return undef;
 527         }
 528         return $input;
 529 }
 530
 531 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 532 sub to_utf8 {
 533         my $str = shift;
 534         return decode("utf8", $str, Encode::FB_DEFAULT);
 535 }
 536
 537 # quote unsafe chars, but keep the slash, even when it's not
 538 # correct, but quoted slashes look too horrible in bookmarks
 539 sub esc_param {
 540         my $str = shift;
 541         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 542         $str =~ s/\+/%2B/g;
 543         $str =~ s/ /\+/g;
 544         return $str;
 545 }
 546
 547 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 548 sub esc_url {
 549         my $str = shift;
 550         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 551         $str =~ s/\+/%2B/g;
 552         $str =~ s/ /\+/g;
 553         return $str;
 554 }
 555
 556 # replace invalid utf8 character with SUBSTITUTION sequence
 557 sub esc_html ($;%) {
 558         my $str = shift;
 559         my %opts = @_;
 560
 561         $str = to_utf8($str);
 562         $str = escapeHTML($str);
 563         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 564         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 565         if ($opts{'-nbsp'}) {
 566                 $str =~ s/ /&nbsp;/g;
 567         }
 568         return $str;
 569 }
 570
 571 # git may return quoted and escaped filenames
 572 sub unquote {
 573         my $str = shift;
 574         if ($str =~ m/^"(.*)"$/) {
 575                 $str = $1;
 576                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 577         }
 578         return $str;
 579 }
 580
 581 # escape tabs (convert tabs to spaces)
 582 sub untabify {
 583         my $line = shift;
 584
 585         while ((my $pos = index($line, "\t")) != -1) {
 586                 if (my $count = (8 - ($pos % 8))) {
 587                         my $spaces = ' ' x $count;
 588                         $line =~ s/\t/$spaces/;
 589                 }
 590         }
 591
 592         return $line;
 593 }
 594
 595 sub project_in_list {
 596         my $project = shift;
 597         my @list = git_get_projects_list();
 598         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 599 }
 600
 601 ## ----------------------------------------------------------------------
 602 ## HTML aware string manipulation
 603
 604 sub chop_str {
 605         my $str = shift;
 606         my $len = shift;
 607         my $add_len = shift || 10;
 608
 609         # allow only $len chars, but don't cut a word if it would fit in $add_len
 610         # if it doesn't fit, cut it if it's still longer than the dots we would add
 611         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 612         my $body = $1;
 613         my $tail = $2;
 614         if (length($tail) > 4) {
 615                 $tail = " ...";
 616                 $body =~ s/&[^;]*$//; # remove chopped character entities
 617         }
 618         return "$body$tail";
 619 }
 620
 621 ## ----------------------------------------------------------------------
 622 ## functions returning short strings
 623
 624 # CSS class for given age value (in seconds)
 625 sub age_class {
 626         my $age = shift;
 627
 628         if ($age < 60*60*2) {
 629                 return "age0";
 630         } elsif ($age < 60*60*24*2) {
 631                 return "age1";
 632         } else {
 633                 return "age2";
 634         }
 635 }
 636
 637 # convert age in seconds to "nn units ago" string
 638 sub age_string {
 639         my $age = shift;
 640         my $age_str;
 641
 642         if ($age > 60*60*24*365*2) {
 643                 $age_str = (int $age/60/60/24/365);
 644                 $age_str .= " years ago";
 645         } elsif ($age > 60*60*24*(365/12)*2) {
 646                 $age_str = int $age/60/60/24/(365/12);
 647                 $age_str .= " months ago";
 648         } elsif ($age > 60*60*24*7*2) {
 649                 $age_str = int $age/60/60/24/7;
 650                 $age_str .= " weeks ago";
 651         } elsif ($age > 60*60*24*2) {
 652                 $age_str = int $age/60/60/24;
 653                 $age_str .= " days ago";
 654         } elsif ($age > 60*60*2) {
 655                 $age_str = int $age/60/60;
 656                 $age_str .= " hours ago";
 657         } elsif ($age > 60*2) {
 658                 $age_str = int $age/60;
 659                 $age_str .= " min ago";
 660         } elsif ($age > 2) {
 661                 $age_str = int $age;
 662                 $age_str .= " sec ago";
 663         } else {
 664                 $age_str .= " right now";
 665         }
 666         return $age_str;
 667 }
 668
 669 # convert file mode in octal to symbolic file mode string
 670 sub mode_str {
 671         my $mode = oct shift;
 672
 673         if (S_ISDIR($mode & S_IFMT)) {
 674                 return 'drwxr-xr-x';
 675         } elsif (S_ISLNK($mode)) {
 676                 return 'lrwxrwxrwx';
 677         } elsif (S_ISREG($mode)) {
 678                 # git cares only about the executable bit
 679                 if ($mode & S_IXUSR) {
 680                         return '-rwxr-xr-x';
 681                 } else {
 682                         return '-rw-r--r--';
 683                 };
 684         } else {
 685                 return '----------';
 686         }
 687 }
 688
 689 # convert file mode in octal to file type string
 690 sub file_type {
 691         my $mode = shift;
 692
 693         if ($mode !~ m/^[0-7]+$/) {
 694                 return $mode;
 695         } else {
 696                 $mode = oct $mode;
 697         }
 698
 699         if (S_ISDIR($mode & S_IFMT)) {
 700                 return "directory";
 701         } elsif (S_ISLNK($mode)) {
 702                 return "symlink";
 703         } elsif (S_ISREG($mode)) {
 704                 return "file";
 705         } else {
 706                 return "unknown";
 707         }
 708 }
 709
 710 ## ----------------------------------------------------------------------
 711 ## functions returning short HTML fragments, or transforming HTML fragments
 712 ## which don't beling to other sections
 713
 714 # format line of commit message or tag comment
 715 sub format_log_line_html {
 716         my $line = shift;
 717
 718         $line = esc_html($line);
 719         $line =~ s/ /&nbsp;/g;
 720         if ($line =~ m/([0-9a-fA-F]{40})/) {
 721                 my $hash_text = $1;
 722                 if (git_get_type($hash_text) eq "commit") {
 723                         my $link =
 724                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 725                                         -class => "text"}, $hash_text);
 726                         $line =~ s/$hash_text/$link/;
 727                 }
 728         }
 729         return $line;
 730 }
 731
 732 # format marker of refs pointing to given object
 733 sub format_ref_marker {
 734         my ($refs, $id) = @_;
 735         my $markers = '';
 736
 737         if (defined $refs->{$id}) {
 738                 foreach my $ref (@{$refs->{$id}}) {
 739                         my ($type, $name) = qw();
 740                         # e.g. tags/v2.6.11 or heads/next
 741                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 742                                 $type = $1;
 743                                 $name = $2;
 744                         } else {
 745                                 $type = "ref";
 746                                 $name = $ref;
 747                         }
 748
 749                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 750                 }
 751         }
 752
 753         if ($markers) {
 754                 return ' <span class="refs">'. $markers . '</span>';
 755         } else {
 756                 return "";
 757         }
 758 }
 759
 760 # format, perhaps shortened and with markers, title line
 761 sub format_subject_html {
 762         my ($long, $short, $href, $extra) = @_;
 763         $extra = '' unless defined($extra);
 764
 765         if (length($short) < length($long)) {
 766                 return $cgi->a({-href => $href, -class => "list subject",
 767                                 -title => to_utf8($long)},
 768                        esc_html($short) . $extra);
 769         } else {
 770                 return $cgi->a({-href => $href, -class => "list subject"},
 771                        esc_html($long)  . $extra);
 772         }
 773 }
 774
 775 sub format_diff_line {
 776         my $line = shift;
 777         my $char = substr($line, 0, 1);
 778         my $diff_class = "";
 779
 780         chomp $line;
 781
 782         if ($char eq '+') {
 783                 $diff_class = " add";
 784         } elsif ($char eq "-") {
 785                 $diff_class = " rem";
 786         } elsif ($char eq "@") {
 787                 $diff_class = " chunk_header";
 788         } elsif ($char eq "\\") {
 789                 $diff_class = " incomplete";
 790         }
 791         $line = untabify($line);
 792         return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 793 }
 794
 795 ## ----------------------------------------------------------------------
 796 ## git utility subroutines, invoking git commands
 797
 798 # returns path to the core git executable and the --git-dir parameter as list
 799 sub git_cmd {
 800         return $GIT, '--git-dir='.$git_dir;
 801 }
 802
 803 # returns path to the core git executable and the --git-dir parameter as string
 804 sub git_cmd_str {
 805         return join(' ', git_cmd());
 806 }
 807
 808 # get HEAD ref of given project as hash
 809 sub git_get_head_hash {
 810         my $project = shift;
 811         my $o_git_dir = $git_dir;
 812         my $retval = undef;
 813         $git_dir = "$projectroot/$project";
 814         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 815                 my $head = <$fd>;
 816                 close $fd;
 817                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 818                         $retval = $1;
 819                 }
 820         }
 821         if (defined $o_git_dir) {
 822                 $git_dir = $o_git_dir;
 823         }
 824         return $retval;
 825 }
 826
 827 # get type of given object
 828 sub git_get_type {
 829         my $hash = shift;
 830
 831         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 832         my $type = <$fd>;
 833         close $fd or return;
 834         chomp $type;
 835         return $type;
 836 }
 837
 838 sub git_get_project_config {
 839         my ($key, $type) = @_;
 840
 841         return unless ($key);
 842         $key =~ s/^gitweb\.//;
 843         return if ($key =~ m/\W/);
 844
 845         my @x = (git_cmd(), 'repo-config');
 846         if (defined $type) { push @x, $type; }
 847         push @x, "--get";
 848         push @x, "gitweb.$key";
 849         my $val = qx(@x);
 850         chomp $val;
 851         return ($val);
 852 }
 853
 854 # get hash of given path at given ref
 855 sub git_get_hash_by_path {
 856         my $base = shift;
 857         my $path = shift || return undef;
 858         my $type = shift;
 859
 860         $path =~ s,/+$,,;
 861
 862         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 863                 or die_error(undef, "Open git-ls-tree failed");
 864         my $line = <$fd>;
 865         close $fd or return undef;
 866
 867         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 868         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 869         if (defined $type && $type ne $2) {
 870                 # type doesn't match
 871                 return undef;
 872         }
 873         return $3;
 874 }
 875
 876 ## ......................................................................
 877 ## git utility functions, directly accessing git repository
 878
 879 sub git_get_project_description {
 880         my $path = shift;
 881
 882         open my $fd, "$projectroot/$path/description" or return undef;
 883         my $descr = <$fd>;
 884         close $fd;
 885         chomp $descr;
 886         return $descr;
 887 }
 888
 889 sub git_get_project_url_list {
 890         my $path = shift;
 891
 892         open my $fd, "$projectroot/$path/cloneurl" or return;
 893         my @git_project_url_list = map { chomp; $_ } <$fd>;
 894         close $fd;
 895
 896         return wantarray ? @git_project_url_list : \@git_project_url_list;
 897 }
 898
 899 sub git_get_projects_list {
 900         my @list;
 901
 902         if (-d $projects_list) {
 903                 # search in directory
 904                 my $dir = $projects_list;
 905                 my $pfxlen = length("$dir");
 906
 907                 File::Find::find({
 908                         follow_fast => 1, # follow symbolic links
 909                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 910                         wanted => sub {
 911                                 # skip project-list toplevel, if we get it.
 912                                 return if (m!^[/.]$!);
 913                                 # only directories can be git repositories
 914                                 return unless (-d $_);
 915
 916                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 917                                 # we check related file in $projectroot
 918                                 if (check_export_ok("$projectroot/$subdir")) {
 919                                         push @list, { path => $subdir };
 920                                         $File::Find::prune = 1;
 921                                 }
 922                         },
 923                 }, "$dir");
 924
 925         } elsif (-f $projects_list) {
 926                 # read from file(url-encoded):
 927                 # 'git%2Fgit.git Linus+Torvalds'
 928                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 929                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 930                 open my ($fd), $projects_list or return;
 931                 while (my $line = <$fd>) {
 932                         chomp $line;
 933                         my ($path, $owner) = split ' ', $line;
 934                         $path = unescape($path);
 935                         $owner = unescape($owner);
 936                         if (!defined $path) {
 937                                 next;
 938                         }
 939                         if (check_export_ok("$projectroot/$path")) {
 940                                 my $pr = {
 941                                         path => $path,
 942                                         owner => to_utf8($owner),
 943                                 };
 944                                 push @list, $pr
 945                         }
 946                 }
 947                 close $fd;
 948         }
 949         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 950         return @list;
 951 }
 952
 953 sub git_get_project_owner {
 954         my $project = shift;
 955         my $owner;
 956
 957         return undef unless $project;
 958
 959         # read from file (url-encoded):
 960         # 'git%2Fgit.git Linus+Torvalds'
 961         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 962         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 963         if (-f $projects_list) {
 964                 open (my $fd , $projects_list);
 965                 while (my $line = <$fd>) {
 966                         chomp $line;
 967                         my ($pr, $ow) = split ' ', $line;
 968                         $pr = unescape($pr);
 969                         $ow = unescape($ow);
 970                         if ($pr eq $project) {
 971                                 $owner = to_utf8($ow);
 972                                 last;
 973                         }
 974                 }
 975                 close $fd;
 976         }
 977         if (!defined $owner) {
 978                 $owner = get_file_owner("$projectroot/$project");
 979         }
 980
 981         return $owner;
 982 }
 983
 984 sub git_get_last_activity {
 985         my ($path) = @_;
 986         my $fd;
 987
 988         $git_dir = "$projectroot/$path";
 989         open($fd, "-|", git_cmd(), 'for-each-ref',
 990              '--format=%(refname) %(committer)',
 991              '--sort=-committerdate',
 992              'refs/heads') or return;
 993         my $most_recent = <$fd>;
 994         close $fd or return;
 995         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
 996                 my $timestamp = $1;
 997                 my $age = time - $timestamp;
 998                 return ($age, age_string($age));
 999         }
1000 }
1001
1002 sub git_get_references {
1003         my $type = shift || "";
1004         my %refs;
1005         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1006         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1007         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1008                 or return;
1009
1010         while (my $line = <$fd>) {
1011                 chomp $line;
1012                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1013                         if (defined $refs{$1}) {
1014                                 push @{$refs{$1}}, $2;
1015                         } else {
1016                                 $refs{$1} = [ $2 ];
1017                         }
1018                 }
1019         }
1020         close $fd or return;
1021         return \%refs;
1022 }
1023
1024 sub git_get_rev_name_tags {
1025         my $hash = shift || return undef;
1026
1027         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1028                 or return;
1029         my $name_rev = <$fd>;
1030         close $fd;
1031
1032         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1033                 return $1;
1034         } else {
1035                 # catches also '$hash undefined' output
1036                 return undef;
1037         }
1038 }
1039
1040 ## ----------------------------------------------------------------------
1041 ## parse to hash functions
1042
1043 sub parse_date {
1044         my $epoch = shift;
1045         my $tz = shift || "-0000";
1046
1047         my %date;
1048         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1049         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1050         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1051         $date{'hour'} = $hour;
1052         $date{'minute'} = $min;
1053         $date{'mday'} = $mday;
1054         $date{'day'} = $days[$wday];
1055         $date{'month'} = $months[$mon];
1056         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1057                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1058         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1059                              $mday, $months[$mon], $hour ,$min;
1060
1061         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1062         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1063         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1064         $date{'hour_local'} = $hour;
1065         $date{'minute_local'} = $min;
1066         $date{'tz_local'} = $tz;
1067         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1068                                    1900+$year, $mon+1, $mday,
1069                                    $hour, $min, $sec, $tz);
1070         return %date;
1071 }
1072
1073 sub parse_tag {
1074         my $tag_id = shift;
1075         my %tag;
1076         my @comment;
1077
1078         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1079         $tag{'id'} = $tag_id;
1080         while (my $line = <$fd>) {
1081                 chomp $line;
1082                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1083                         $tag{'object'} = $1;
1084                 } elsif ($line =~ m/^type (.+)$/) {
1085                         $tag{'type'} = $1;
1086                 } elsif ($line =~ m/^tag (.+)$/) {
1087                         $tag{'name'} = $1;
1088                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1089                         $tag{'author'} = $1;
1090                         $tag{'epoch'} = $2;
1091                         $tag{'tz'} = $3;
1092                 } elsif ($line =~ m/--BEGIN/) {
1093                         push @comment, $line;
1094                         last;
1095                 } elsif ($line eq "") {
1096                         last;
1097                 }
1098         }
1099         push @comment, <$fd>;
1100         $tag{'comment'} = \@comment;
1101         close $fd or return;
1102         if (!defined $tag{'name'}) {
1103                 return
1104         };
1105         return %tag
1106 }
1107
1108 sub parse_commit {
1109         my $commit_id = shift;
1110         my $commit_text = shift;
1111
1112         my @commit_lines;
1113         my %co;
1114
1115         if (defined $commit_text) {
1116                 @commit_lines = @$commit_text;
1117         } else {
1118                 local $/ = "\0";
1119                 open my $fd, "-|", git_cmd(), "rev-list",
1120                         "--header", "--parents", "--max-count=1",
1121                         $commit_id, "--"
1122                         or return;
1123                 @commit_lines = split '\n', <$fd>;
1124                 close $fd or return;
1125                 pop @commit_lines;
1126         }
1127         my $header = shift @commit_lines;
1128         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1129                 return;
1130         }
1131         ($co{'id'}, my @parents) = split ' ', $header;
1132         $co{'parents'} = \@parents;
1133         $co{'parent'} = $parents[0];
1134         while (my $line = shift @commit_lines) {
1135                 last if $line eq "\n";
1136                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1137                         $co{'tree'} = $1;
1138                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1139                         $co{'author'} = $1;
1140                         $co{'author_epoch'} = $2;
1141                         $co{'author_tz'} = $3;
1142                         if ($co{'author'} =~ m/^([^<]+) </) {
1143                                 $co{'author_name'} = $1;
1144                         } else {
1145                                 $co{'author_name'} = $co{'author'};
1146                         }
1147                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1148                         $co{'committer'} = $1;
1149                         $co{'committer_epoch'} = $2;
1150                         $co{'committer_tz'} = $3;
1151                         $co{'committer_name'} = $co{'committer'};
1152                         $co{'committer_name'} =~ s/ <.*//;
1153                 }
1154         }
1155         if (!defined $co{'tree'}) {
1156                 return;
1157         };
1158
1159         foreach my $title (@commit_lines) {
1160                 $title =~ s/^    //;
1161                 if ($title ne "") {
1162                         $co{'title'} = chop_str($title, 80, 5);
1163                         # remove leading stuff of merges to make the interesting part visible
1164                         if (length($title) > 50) {
1165                                 $title =~ s/^Automatic //;
1166                                 $title =~ s/^merge (of|with) /Merge ... /i;
1167                                 if (length($title) > 50) {
1168                                         $title =~ s/(http|rsync):\/\///;
1169                                 }
1170                                 if (length($title) > 50) {
1171                                         $title =~ s/(master|www|rsync)\.//;
1172                                 }
1173                                 if (length($title) > 50) {
1174                                         $title =~ s/kernel.org:?//;
1175                                 }
1176                                 if (length($title) > 50) {
1177                                         $title =~ s/\/pub\/scm//;
1178                                 }
1179                         }
1180                         $co{'title_short'} = chop_str($title, 50, 5);
1181                         last;
1182                 }
1183         }
1184         if ($co{'title'} eq "") {
1185                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1186         }
1187         # remove added spaces
1188         foreach my $line (@commit_lines) {
1189                 $line =~ s/^    //;
1190         }
1191         $co{'comment'} = \@commit_lines;
1192
1193         my $age = time - $co{'committer_epoch'};
1194         $co{'age'} = $age;
1195         $co{'age_string'} = age_string($age);
1196         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1197         if ($age > 60*60*24*7*2) {
1198                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1199                 $co{'age_string_age'} = $co{'age_string'};
1200         } else {
1201                 $co{'age_string_date'} = $co{'age_string'};
1202                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1203         }
1204         return %co;
1205 }
1206
1207 # parse ref from ref_file, given by ref_id, with given type
1208 sub parse_ref {
1209         my $ref_file = shift;
1210         my $ref_id = shift;
1211         my $type = shift || git_get_type($ref_id);
1212         my %ref_item;
1213
1214         $ref_item{'type'} = $type;
1215         $ref_item{'id'} = $ref_id;
1216         $ref_item{'epoch'} = 0;
1217         $ref_item{'age'} = "unknown";
1218         if ($type eq "tag") {
1219                 my %tag = parse_tag($ref_id);
1220                 $ref_item{'comment'} = $tag{'comment'};
1221                 if ($tag{'type'} eq "commit") {
1222                         my %co = parse_commit($tag{'object'});
1223                         $ref_item{'epoch'} = $co{'committer_epoch'};
1224                         $ref_item{'age'} = $co{'age_string'};
1225                 } elsif (defined($tag{'epoch'})) {
1226                         my $age = time - $tag{'epoch'};
1227                         $ref_item{'epoch'} = $tag{'epoch'};
1228                         $ref_item{'age'} = age_string($age);
1229                 }
1230                 $ref_item{'reftype'} = $tag{'type'};
1231                 $ref_item{'name'} = $tag{'name'};
1232                 $ref_item{'refid'} = $tag{'object'};
1233         } elsif ($type eq "commit"){
1234                 my %co = parse_commit($ref_id);
1235                 $ref_item{'reftype'} = "commit";
1236                 $ref_item{'name'} = $ref_file;
1237                 $ref_item{'title'} = $co{'title'};
1238                 $ref_item{'refid'} = $ref_id;
1239                 $ref_item{'epoch'} = $co{'committer_epoch'};
1240                 $ref_item{'age'} = $co{'age_string'};
1241         } else {
1242                 $ref_item{'reftype'} = $type;
1243                 $ref_item{'name'} = $ref_file;
1244                 $ref_item{'refid'} = $ref_id;
1245         }
1246
1247         return %ref_item;
1248 }
1249
1250 # parse line of git-diff-tree "raw" output
1251 sub parse_difftree_raw_line {
1252         my $line = shift;
1253         my %res;
1254
1255         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1256         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1257         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1258                 $res{'from_mode'} = $1;
1259                 $res{'to_mode'} = $2;
1260                 $res{'from_id'} = $3;
1261                 $res{'to_id'} = $4;
1262                 $res{'status'} = $5;
1263                 $res{'similarity'} = $6;
1264                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1265                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1266                 } else {
1267                         $res{'file'} = unquote($7);
1268                 }
1269         }
1270         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1271         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1272                 $res{'commit'} = $1;
1273         }
1274
1275         return wantarray ? %res : \%res;
1276 }
1277
1278 # parse line of git-ls-tree output
1279 sub parse_ls_tree_line ($;%) {
1280         my $line = shift;
1281         my %opts = @_;
1282         my %res;
1283
1284         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1285         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1286
1287         $res{'mode'} = $1;
1288         $res{'type'} = $2;
1289         $res{'hash'} = $3;
1290         if ($opts{'-z'}) {
1291                 $res{'name'} = $4;
1292         } else {
1293                 $res{'name'} = unquote($4);
1294         }
1295
1296         return wantarray ? %res : \%res;
1297 }
1298
1299 ## ......................................................................
1300 ## parse to array of hashes functions
1301
1302 sub git_get_heads_list {
1303         my $limit = shift;
1304         my @headslist;
1305
1306         open my $fd, '-|', git_cmd(), 'for-each-ref',
1307                 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1308                 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1309                 'refs/heads'
1310                 or return;
1311         while (my $line = <$fd>) {
1312                 my %ref_item;
1313
1314                 chomp $line;
1315                 my ($refinfo, $committerinfo) = split(/\0/, $line);
1316                 my ($hash, $name, $title) = split(' ', $refinfo, 3);
1317                 my ($committer, $epoch, $tz) =
1318                         ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1319                 $name =~ s!^refs/heads/!!;
1320
1321                 $ref_item{'name'}  = $name;
1322                 $ref_item{'id'}    = $hash;
1323                 $ref_item{'title'} = $title || '(no commit message)';
1324                 $ref_item{'epoch'} = $epoch;
1325                 if ($epoch) {
1326                         $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1327                 } else {
1328                         $ref_item{'age'} = "unknown";
1329                 }
1330
1331                 push @headslist, \%ref_item;
1332         }
1333         close $fd;
1334
1335         return wantarray ? @headslist : \@headslist;
1336 }
1337
1338 sub git_get_tags_list {
1339         my $limit = shift;
1340         my @tagslist;
1341
1342         open my $fd, '-|', git_cmd(), 'for-each-ref',
1343                 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1344                 '--format=%(objectname) %(objecttype) %(refname) '.
1345                 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1346                 'refs/tags'
1347                 or return;
1348         while (my $line = <$fd>) {
1349                 my %ref_item;
1350
1351                 chomp $line;
1352                 my ($refinfo, $creatorinfo) = split(/\0/, $line);
1353                 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1354                 my ($creator, $epoch, $tz) =
1355                         ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1356                 $name =~ s!^refs/tags/!!;
1357
1358                 $ref_item{'type'} = $type;
1359                 $ref_item{'id'} = $id;
1360                 $ref_item{'name'} = $name;
1361                 if ($type eq "tag") {
1362                         $ref_item{'subject'} = $title;
1363                         $ref_item{'reftype'} = $reftype;
1364                         $ref_item{'refid'}   = $refid;
1365                 } else {
1366                         $ref_item{'reftype'} = $type;
1367                         $ref_item{'refid'}   = $id;
1368                 }
1369
1370                 if ($type eq "tag" || $type eq "commit") {
1371                         $ref_item{'epoch'} = $epoch;
1372                         if ($epoch) {
1373                                 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1374                         } else {
1375                                 $ref_item{'age'} = "unknown";
1376                         }
1377                 }
1378
1379                 push @tagslist, \%ref_item;
1380         }
1381         close $fd;
1382
1383         return wantarray ? @tagslist : \@tagslist;
1384 }
1385
1386 ## ----------------------------------------------------------------------
1387 ## filesystem-related functions
1388
1389 sub get_file_owner {
1390         my $path = shift;
1391
1392         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1393         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1394         if (!defined $gcos) {
1395                 return undef;
1396         }
1397         my $owner = $gcos;
1398         $owner =~ s/[,;].*$//;
1399         return to_utf8($owner);
1400 }
1401
1402 ## ......................................................................
1403 ## mimetype related functions
1404
1405 sub mimetype_guess_file {
1406         my $filename = shift;
1407         my $mimemap = shift;
1408         -r $mimemap or return undef;
1409
1410         my %mimemap;
1411         open(MIME, $mimemap) or return undef;
1412         while (<MIME>) {
1413                 next if m/^#/; # skip comments
1414                 my ($mime, $exts) = split(/\t+/);
1415                 if (defined $exts) {
1416                         my @exts = split(/\s+/, $exts);
1417                         foreach my $ext (@exts) {
1418                                 $mimemap{$ext} = $mime;
1419                         }
1420                 }
1421         }
1422         close(MIME);
1423
1424         $filename =~ /\.([^.]*)$/;
1425         return $mimemap{$1};
1426 }
1427
1428 sub mimetype_guess {
1429         my $filename = shift;
1430         my $mime;
1431         $filename =~ /\./ or return undef;
1432
1433         if ($mimetypes_file) {
1434                 my $file = $mimetypes_file;
1435                 if ($file !~ m!^/!) { # if it is relative path
1436                         # it is relative to project
1437                         $file = "$projectroot/$project/$file";
1438                 }
1439                 $mime = mimetype_guess_file($filename, $file);
1440         }
1441         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1442         return $mime;
1443 }
1444
1445 sub blob_mimetype {
1446         my $fd = shift;
1447         my $filename = shift;
1448
1449         if ($filename) {
1450                 my $mime = mimetype_guess($filename);
1451                 $mime and return $mime;
1452         }
1453
1454         # just in case
1455         return $default_blob_plain_mimetype unless $fd;
1456
1457         if (-T $fd) {
1458                 return 'text/plain' .
1459                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1460         } elsif (! $filename) {
1461                 return 'application/octet-stream';
1462         } elsif ($filename =~ m/\.png$/i) {
1463                 return 'image/png';
1464         } elsif ($filename =~ m/\.gif$/i) {
1465                 return 'image/gif';
1466         } elsif ($filename =~ m/\.jpe?g$/i) {
1467                 return 'image/jpeg';
1468         } else {
1469                 return 'application/octet-stream';
1470         }
1471 }
1472
1473 ## ======================================================================
1474 ## functions printing HTML: header, footer, error page
1475
1476 sub git_header_html {
1477         my $status = shift || "200 OK";
1478         my $expires = shift;
1479
1480         my $title = "$site_name";
1481         if (defined $project) {
1482                 $title .= " - $project";
1483                 if (defined $action) {
1484                         $title .= "/$action";
1485                         if (defined $file_name) {
1486                                 $title .= " - " . esc_html($file_name);
1487                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1488                                         $title .= "/";
1489                                 }
1490                         }
1491                 }
1492         }
1493         my $content_type;
1494         # require explicit support from the UA if we are to send the page as
1495         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1496         # we have to do this because MSIE sometimes globs '*/*', pretending to
1497         # support xhtml+xml but choking when it gets what it asked for.
1498         if (defined $cgi->http('HTTP_ACCEPT') &&
1499             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1500             $cgi->Accept('application/xhtml+xml') != 0) {
1501                 $content_type = 'application/xhtml+xml';
1502         } else {
1503                 $content_type = 'text/html';
1504         }
1505         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1506                            -status=> $status, -expires => $expires);
1507         print <<EOF;
1508 <?xml version="1.0" encoding="utf-8"?>
1509 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1510 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1511 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1512 <!-- git core binaries version $git_version -->
1513 <head>
1514 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1515 <meta name="generator" content="gitweb/$version git/$git_version"/>
1516 <meta name="robots" content="index, nofollow"/>
1517 <title>$title</title>
1518 EOF
1519 # print out each stylesheet that exist
1520         if (defined $stylesheet) {
1521 #provides backwards capability for those people who define style sheet in a config file
1522                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1523         } else {
1524                 foreach my $stylesheet (@stylesheets) {
1525                         next unless $stylesheet;
1526                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1527                 }
1528         }
1529         if (defined $project) {
1530                 printf('<link rel="alternate" title="%s log" '.
1531                        'href="%s" type="application/rss+xml"/>'."\n",
1532                        esc_param($project), href(action=>"rss"));
1533         } else {
1534                 printf('<link rel="alternate" title="%s projects list" '.
1535                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1536                        $site_name, href(project=>undef, action=>"project_index"));
1537                 printf('<link rel="alternate" title="%s projects logs" '.
1538                        'href="%s" type="text/x-opml"/>'."\n",
1539                        $site_name, href(project=>undef, action=>"opml"));
1540         }
1541         if (defined $favicon) {
1542                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1543         }
1544
1545         print "</head>\n" .
1546               "<body>\n";
1547
1548         if (-f $site_header) {
1549                 open (my $fd, $site_header);
1550                 print <$fd>;
1551                 close $fd;
1552         }
1553
1554         print "<div class=\"page_header\">\n" .
1555               $cgi->a({-href => esc_url($logo_url),
1556                        -title => $logo_label},
1557                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1558         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1559         if (defined $project) {
1560                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1561                 if (defined $action) {
1562                         print " / $action";
1563                 }
1564                 print "\n";
1565                 if (!defined $searchtext) {
1566                         $searchtext = "";
1567                 }
1568                 my $search_hash;
1569                 if (defined $hash_base) {
1570                         $search_hash = $hash_base;
1571                 } elsif (defined $hash) {
1572                         $search_hash = $hash;
1573                 } else {
1574                         $search_hash = "HEAD";
1575                 }
1576                 $cgi->param("a", "search");
1577                 $cgi->param("h", $search_hash);
1578                 $cgi->param("p", $project);
1579                 print $cgi->startform(-method => "get", -action => $my_uri) .
1580                       "<div class=\"search\">\n" .
1581                       $cgi->hidden(-name => "p") . "\n" .
1582                       $cgi->hidden(-name => "a") . "\n" .
1583                       $cgi->hidden(-name => "h") . "\n" .
1584                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1585                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1586                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1587                       " search:\n",
1588                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1589                       "</div>" .
1590                       $cgi->end_form() . "\n";
1591         }
1592         print "</div>\n";
1593 }
1594
1595 sub git_footer_html {
1596         print "<div class=\"page_footer\">\n";
1597         if (defined $project) {
1598                 my $descr = git_get_project_description($project);
1599                 if (defined $descr) {
1600                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1601                 }
1602                 print $cgi->a({-href => href(action=>"rss"),
1603                               -class => "rss_logo"}, "RSS") . "\n";
1604         } else {
1605                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1606                               -class => "rss_logo"}, "OPML") . " ";
1607                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1608                               -class => "rss_logo"}, "TXT") . "\n";
1609         }
1610         print "</div>\n" ;
1611
1612         if (-f $site_footer) {
1613                 open (my $fd, $site_footer);
1614                 print <$fd>;
1615                 close $fd;
1616         }
1617
1618         print "</body>\n" .
1619               "</html>";
1620 }
1621
1622 sub die_error {
1623         my $status = shift || "403 Forbidden";
1624         my $error = shift || "Malformed query, file missing or permission denied";
1625
1626         git_header_html($status);
1627         print <<EOF;
1628 <div class="page_body">
1629 <br /><br />
1630 $status - $error
1631 <br />
1632 </div>
1633 EOF
1634         git_footer_html();
1635         exit;
1636 }
1637
1638 ## ----------------------------------------------------------------------
1639 ## functions printing or outputting HTML: navigation
1640
1641 sub git_print_page_nav {
1642         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1643         $extra = '' if !defined $extra; # pager or formats
1644
1645         my @navs = qw(summary shortlog log commit commitdiff tree);
1646         if ($suppress) {
1647                 @navs = grep { $_ ne $suppress } @navs;
1648         }
1649
1650         my %arg = map { $_ => {action=>$_} } @navs;
1651         if (defined $head) {
1652                 for (qw(commit commitdiff)) {
1653                         $arg{$_}{hash} = $head;
1654                 }
1655                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1656                         for (qw(shortlog log)) {
1657                                 $arg{$_}{hash} = $head;
1658                         }
1659                 }
1660         }
1661         $arg{tree}{hash} = $treehead if defined $treehead;
1662         $arg{tree}{hash_base} = $treebase if defined $treebase;
1663
1664         print "<div class=\"page_nav\">\n" .
1665                 (join " | ",
1666                  map { $_ eq $current ?
1667                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1668                  } @navs);
1669         print "<br/>\n$extra<br/>\n" .
1670               "</div>\n";
1671 }
1672
1673 sub format_paging_nav {
1674         my ($action, $hash, $head, $page, $nrevs) = @_;
1675         my $paging_nav;
1676
1677
1678         if ($hash ne $head || $page) {
1679                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1680         } else {
1681                 $paging_nav .= "HEAD";
1682         }
1683
1684         if ($page > 0) {
1685                 $paging_nav .= " &sdot; " .
1686                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1687                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1688         } else {
1689                 $paging_nav .= " &sdot; prev";
1690         }
1691
1692         if ($nrevs >= (100 * ($page+1)-1)) {
1693                 $paging_nav .= " &sdot; " .
1694                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1695                                  -accesskey => "n", -title => "Alt-n"}, "next");
1696         } else {
1697                 $paging_nav .= " &sdot; next";
1698         }
1699
1700         return $paging_nav;
1701 }
1702
1703 ## ......................................................................
1704 ## functions printing or outputting HTML: div
1705
1706 sub git_print_header_div {
1707         my ($action, $title, $hash, $hash_base) = @_;
1708         my %args = ();
1709
1710         $args{action} = $action;
1711         $args{hash} = $hash if $hash;
1712         $args{hash_base} = $hash_base if $hash_base;
1713
1714         print "<div class=\"header\">\n" .
1715               $cgi->a({-href => href(%args), -class => "title"},
1716               $title ? $title : $action) .
1717               "\n</div>\n";
1718 }
1719
1720 #sub git_print_authorship (\%) {
1721 sub git_print_authorship {
1722         my $co = shift;
1723
1724         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1725         print "<div class=\"author_date\">" .
1726               esc_html($co->{'author_name'}) .
1727               " [$ad{'rfc2822'}";
1728         if ($ad{'hour_local'} < 6) {
1729                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1730                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1731         } else {
1732                 printf(" (%02d:%02d %s)",
1733                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1734         }
1735         print "]</div>\n";
1736 }
1737
1738 sub git_print_page_path {
1739         my $name = shift;
1740         my $type = shift;
1741         my $hb = shift;
1742
1743
1744         print "<div class=\"page_path\">";
1745         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1746                       -title => 'tree root'}, "[$project]");
1747         print " / ";
1748         if (defined $name) {
1749                 my @dirname = split '/', $name;
1750                 my $basename = pop @dirname;
1751                 my $fullname = '';
1752
1753                 foreach my $dir (@dirname) {
1754                         $fullname .= ($fullname ? '/' : '') . $dir;
1755                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1756                                                      hash_base=>$hb),
1757                                       -title => $fullname}, esc_html($dir));
1758                         print " / ";
1759                 }
1760                 if (defined $type && $type eq 'blob') {
1761                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1762                                                      hash_base=>$hb),
1763                                       -title => $name}, esc_html($basename));
1764                 } elsif (defined $type && $type eq 'tree') {
1765                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1766                                                      hash_base=>$hb),
1767                                       -title => $name}, esc_html($basename));
1768                         print " / ";
1769                 } else {
1770                         print esc_html($basename);
1771                 }
1772         }
1773         print "<br/></div>\n";
1774 }
1775
1776 # sub git_print_log (\@;%) {
1777 sub git_print_log ($;%) {
1778         my $log = shift;
1779         my %opts = @_;
1780
1781         if ($opts{'-remove_title'}) {
1782                 # remove title, i.e. first line of log
1783                 shift @$log;
1784         }
1785         # remove leading empty lines
1786         while (defined $log->[0] && $log->[0] eq "") {
1787                 shift @$log;
1788         }
1789
1790         # print log
1791         my $signoff = 0;
1792         my $empty = 0;
1793         foreach my $line (@$log) {
1794                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1795                         $signoff = 1;
1796                         $empty = 0;
1797                         if (! $opts{'-remove_signoff'}) {
1798                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1799                                 next;
1800                         } else {
1801                                 # remove signoff lines
1802                                 next;
1803                         }
1804                 } else {
1805                         $signoff = 0;
1806                 }
1807
1808                 # print only one empty line
1809                 # do not print empty line after signoff
1810                 if ($line eq "") {
1811                         next if ($empty || $signoff);
1812                         $empty = 1;
1813                 } else {
1814                         $empty = 0;
1815                 }
1816
1817                 print format_log_line_html($line) . "<br/>\n";
1818         }
1819
1820         if ($opts{'-final_empty_line'}) {
1821                 # end with single empty line
1822                 print "<br/>\n" unless $empty;
1823         }
1824 }
1825
1826 # print tree entry (row of git_tree), but without encompassing <tr> element
1827 sub git_print_tree_entry {
1828         my ($t, $basedir, $hash_base, $have_blame) = @_;
1829
1830         my %base_key = ();
1831         $base_key{hash_base} = $hash_base if defined $hash_base;
1832
1833         # The format of a table row is: mode list link.  Where mode is
1834         # the mode of the entry, list is the name of the entry, an href,
1835         # and link is the action links of the entry.
1836
1837         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1838         if ($t->{'type'} eq "blob") {
1839                 print "<td class=\"list\">" .
1840                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1841                                                file_name=>"$basedir$t->{'name'}", %base_key),
1842                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1843                 print "<td class=\"link\">";
1844                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1845                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1846                               "blob");
1847                 if ($have_blame) {
1848                         print " | " .
1849                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1850                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1851                                             "blame");
1852                 }
1853                 if (defined $hash_base) {
1854                         print " | " .
1855                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1856                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1857                                       "history");
1858                 }
1859                 print " | " .
1860                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1861                                                file_name=>"$basedir$t->{'name'}")},
1862                                 "raw");
1863                 print "</td>\n";
1864
1865         } elsif ($t->{'type'} eq "tree") {
1866                 print "<td class=\"list\">";
1867                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1868                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1869                               esc_html($t->{'name'}));
1870                 print "</td>\n";
1871                 print "<td class=\"link\">";
1872                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1873                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1874                               "tree");
1875                 if (defined $hash_base) {
1876                         print " | " .
1877                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1878                                                      file_name=>"$basedir$t->{'name'}")},
1879                                       "history");
1880                 }
1881                 print "</td>\n";
1882         }
1883 }
1884
1885 ## ......................................................................
1886 ## functions printing large fragments of HTML
1887
1888 sub git_difftree_body {
1889         my ($difftree, $hash, $parent) = @_;
1890
1891         print "<div class=\"list_head\">\n";
1892         if ($#{$difftree} > 10) {
1893                 print(($#{$difftree} + 1) . " files changed:\n");
1894         }
1895         print "</div>\n";
1896
1897         print "<table class=\"diff_tree\">\n";
1898         my $alternate = 1;
1899         my $patchno = 0;
1900         foreach my $line (@{$difftree}) {
1901                 my %diff = parse_difftree_raw_line($line);
1902
1903                 if ($alternate) {
1904                         print "<tr class=\"dark\">\n";
1905                 } else {
1906                         print "<tr class=\"light\">\n";
1907                 }
1908                 $alternate ^= 1;
1909
1910                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1911                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1912                 if ($diff{'to_mode'} ne ('0' x 6)) {
1913                         $to_mode_oct = oct $diff{'to_mode'};
1914                         if (S_ISREG($to_mode_oct)) { # only for regular file
1915                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1916                         }
1917                         $to_file_type = file_type($diff{'to_mode'});
1918                 }
1919                 if ($diff{'from_mode'} ne ('0' x 6)) {
1920                         $from_mode_oct = oct $diff{'from_mode'};
1921                         if (S_ISREG($to_mode_oct)) { # only for regular file
1922                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1923                         }
1924                         $from_file_type = file_type($diff{'from_mode'});
1925                 }
1926
1927                 if ($diff{'status'} eq "A") { # created
1928                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1929                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1930                         $mode_chng   .= "]</span>";
1931                         print "<td>";
1932                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1933                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1934                                       -class => "list"}, esc_html($diff{'file'}));
1935                         print "</td>\n";
1936                         print "<td>$mode_chng</td>\n";
1937                         print "<td class=\"link\">";
1938                         if ($action eq 'commitdiff') {
1939                                 # link to patch
1940                                 $patchno++;
1941                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1942                         }
1943                         print "</td>\n";
1944
1945                 } elsif ($diff{'status'} eq "D") { # deleted
1946                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1947                         print "<td>";
1948                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1949                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1950                                        -class => "list"}, esc_html($diff{'file'}));
1951                         print "</td>\n";
1952                         print "<td>$mode_chng</td>\n";
1953                         print "<td class=\"link\">";
1954                         if ($action eq 'commitdiff') {
1955                                 # link to patch
1956                                 $patchno++;
1957                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1958                                 print " | ";
1959                         }
1960                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1961                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1962                                       "blob") . " | ";
1963                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1964                                                      file_name=>$diff{'file'})},
1965                                       "blame") . " | ";
1966                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1967                                                      file_name=>$diff{'file'})},
1968                                       "history");
1969                         print "</td>\n";
1970
1971                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1972                         my $mode_chnge = "";
1973                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1974                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1975                                 if ($from_file_type != $to_file_type) {
1976                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1977                                 }
1978                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1979                                         if ($from_mode_str && $to_mode_str) {
1980                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1981                                         } elsif ($to_mode_str) {
1982                                                 $mode_chnge .= " mode: $to_mode_str";
1983                                         }
1984                                 }
1985                                 $mode_chnge .= "]</span>\n";
1986                         }
1987                         print "<td>";
1988                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1989                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1990                                       -class => "list"}, esc_html($diff{'file'}));
1991                         print "</td>\n";
1992                         print "<td>$mode_chnge</td>\n";
1993                         print "<td class=\"link\">";
1994                         if ($action eq 'commitdiff') {
1995                                 # link to patch
1996                                 $patchno++;
1997                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
1998                                       " | ";
1999                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2000                                 # "commit" view and modified file (not onlu mode changed)
2001                                 print $cgi->a({-href => href(action=>"blobdiff",
2002                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2003                                                              hash_base=>$hash, hash_parent_base=>$parent,
2004                                                              file_name=>$diff{'file'})},
2005                                               "diff") .
2006                                       " | ";
2007                         }
2008                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2009                                                      hash_base=>$hash, file_name=>$diff{'file'})},
2010                                       "blob") . " | ";
2011                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2012                                                      file_name=>$diff{'file'})},
2013                                       "blame") . " | ";
2014                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2015                                                      file_name=>$diff{'file'})},
2016                                       "history");
2017                         print "</td>\n";
2018
2019                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2020                         my %status_name = ('R' => 'moved', 'C' => 'copied');
2021                         my $nstatus = $status_name{$diff{'status'}};
2022                         my $mode_chng = "";
2023                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2024                                 # mode also for directories, so we cannot use $to_mode_str
2025                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2026                         }
2027                         print "<td>" .
2028                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2029                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2030                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
2031                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2032                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2033                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2034                                       -class => "list"}, esc_html($diff{'from_file'})) .
2035                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2036                               "<td class=\"link\">";
2037                         if ($action eq 'commitdiff') {
2038                                 # link to patch
2039                                 $patchno++;
2040                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2041                                       " | ";
2042                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2043                                 # "commit" view and modified file (not only pure rename or copy)
2044                                 print $cgi->a({-href => href(action=>"blobdiff",
2045                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2046                                                              hash_base=>$hash, hash_parent_base=>$parent,
2047                                                              file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2048                                               "diff") .
2049                                       " | ";
2050                         }
2051                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2052                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2053                                       "blob") . " | ";
2054                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2055                                                      file_name=>$diff{'from_file'})},
2056                                       "blame") . " | ";
2057                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2058                                                     file_name=>$diff{'from_file'})},
2059                                       "history");
2060                         print "</td>\n";
2061
2062                 } # we should not encounter Unmerged (U) or Unknown (X) status
2063                 print "</tr>\n";
2064         }
2065         print "</table>\n";
2066 }
2067
2068 sub git_patchset_body {
2069         my ($fd, $difftree, $hash, $hash_parent) = @_;
2070
2071         my $patch_idx = 0;
2072         my $in_header = 0;
2073         my $patch_found = 0;
2074         my $diffinfo;
2075
2076         print "<div class=\"patchset\">\n";
2077
2078         LINE:
2079         while (my $patch_line = <$fd>) {
2080                 chomp $patch_line;
2081
2082                 if ($patch_line =~ m/^diff /) { # "git diff" header
2083                         # beginning of patch (in patchset)
2084                         if ($patch_found) {
2085                                 # close previous patch
2086                                 print "</div>\n"; # class="patch"
2087                         } else {
2088                                 # first patch in patchset
2089                                 $patch_found = 1;
2090                         }
2091                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2092
2093                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2094                                 $diffinfo = $difftree->[$patch_idx];
2095                         } else {
2096                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2097                         }
2098                         $patch_idx++;
2099
2100                         if ($diffinfo->{'status'} eq "A") { # added
2101                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2102                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2103                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2104                                               $diffinfo->{'to_id'}) . " (new)" .
2105                                       "</div>\n"; # class="diff_info"
2106
2107                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2108                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2109                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2110                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2111                                               $diffinfo->{'from_id'}) . " (deleted)" .
2112                                       "</div>\n"; # class="diff_info"
2113
2114                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2115                                  $diffinfo->{'status'} eq "C" || # copied
2116                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2117                                 print "<div class=\"diff_info\">" .
2118                                       file_type($diffinfo->{'from_mode'}) . ":" .
2119                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2120                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2121                                               $diffinfo->{'from_id'}) .
2122                                       " -> " .
2123                                       file_type($diffinfo->{'to_mode'}) . ":" .
2124                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2125                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2126                                               $diffinfo->{'to_id'});
2127                                 print "</div>\n"; # class="diff_info"
2128
2129                         } else { # modified, mode changed, ...
2130                                 print "<div class=\"diff_info\">" .
2131                                       file_type($diffinfo->{'from_mode'}) . ":" .
2132                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2133                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2134                                               $diffinfo->{'from_id'}) .
2135                                       " -> " .
2136                                       file_type($diffinfo->{'to_mode'}) . ":" .
2137                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2138                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2139                                               $diffinfo->{'to_id'});
2140                                 print "</div>\n"; # class="diff_info"
2141                         }
2142
2143                         #print "<div class=\"diff extended_header\">\n";
2144                         $in_header = 1;
2145                         next LINE;
2146                 } # start of patch in patchset
2147
2148
2149                 if ($in_header && $patch_line =~ m/^---/) {
2150                         #print "</div>\n"; # class="diff extended_header"
2151                         $in_header = 0;
2152
2153                         my $file = $diffinfo->{'from_file'};
2154                         $file  ||= $diffinfo->{'file'};
2155                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2156                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2157                                         -class => "list"}, esc_html($file));
2158                         $patch_line =~ s|a/.*$|a/$file|g;
2159                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2160
2161                         $patch_line = <$fd>;
2162                         chomp $patch_line;
2163
2164                         #$patch_line =~ m/^+++/;
2165                         $file    = $diffinfo->{'to_file'};
2166                         $file  ||= $diffinfo->{'file'};
2167                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2168                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2169                                         -class => "list"}, esc_html($file));
2170                         $patch_line =~ s|b/.*|b/$file|g;
2171                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2172
2173                         next LINE;
2174                 }
2175                 next LINE if $in_header;
2176
2177                 print format_diff_line($patch_line);
2178         }
2179         print "</div>\n" if $patch_found; # class="patch"
2180
2181         print "</div>\n"; # class="patchset"
2182 }
2183
2184 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2185
2186 sub git_shortlog_body {
2187         # uses global variable $project
2188         my ($revlist, $from, $to, $refs, $extra) = @_;
2189
2190         $from = 0 unless defined $from;
2191         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2192
2193         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2194         my $alternate = 1;
2195         for (my $i = $from; $i <= $to; $i++) {
2196                 my $commit = $revlist->[$i];
2197                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2198                 my $ref = format_ref_marker($refs, $commit);
2199                 my %co = parse_commit($commit);
2200                 if ($alternate) {
2201                         print "<tr class=\"dark\">\n";
2202                 } else {
2203                         print "<tr class=\"light\">\n";
2204                 }
2205                 $alternate ^= 1;
2206                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2207                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2208                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2209                       "<td>";
2210                 print format_subject_html($co{'title'}, $co{'title_short'},
2211                                           href(action=>"commit", hash=>$commit), $ref);
2212                 print "</td>\n" .
2213                       "<td class=\"link\">" .
2214                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2215                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2216                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2217                 if (gitweb_have_snapshot()) {
2218                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2219                 }
2220                 print "</td>\n" .
2221                       "</tr>\n";
2222         }
2223         if (defined $extra) {
2224                 print "<tr>\n" .
2225                       "<td colspan=\"4\">$extra</td>\n" .
2226                       "</tr>\n";
2227         }
2228         print "</table>\n";
2229 }
2230
2231 sub git_history_body {
2232         # Warning: assumes constant type (blob or tree) during history
2233         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2234
2235         $from = 0 unless defined $from;
2236         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2237
2238         print "<table class=\"history\" cellspacing=\"0\">\n";
2239         my $alternate = 1;
2240         for (my $i = $from; $i <= $to; $i++) {
2241                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2242                         next;
2243                 }
2244
2245                 my $commit = $1;
2246                 my %co = parse_commit($commit);
2247                 if (!%co) {
2248                         next;
2249                 }
2250
2251                 my $ref = format_ref_marker($refs, $commit);
2252
2253                 if ($alternate) {
2254                         print "<tr class=\"dark\">\n";
2255                 } else {
2256                         print "<tr class=\"light\">\n";
2257                 }
2258                 $alternate ^= 1;
2259                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2260                       # shortlog uses      chop_str($co{'author_name'}, 10)
2261                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2262                       "<td>";
2263                 # originally git_history used chop_str($co{'title'}, 50)
2264                 print format_subject_html($co{'title'}, $co{'title_short'},
2265                                           href(action=>"commit", hash=>$commit), $ref);
2266                 print "</td>\n" .
2267                       "<td class=\"link\">" .
2268                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2269                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2270
2271                 if ($ftype eq 'blob') {
2272                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2273                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2274                         if (defined $blob_current && defined $blob_parent &&
2275                                         $blob_current ne $blob_parent) {
2276                                 print " | " .
2277                                         $cgi->a({-href => href(action=>"blobdiff",
2278                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2279                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2280                                                                file_name=>$file_name)},
2281                                                 "diff to current");
2282                         }
2283                 }
2284                 print "</td>\n" .
2285                       "</tr>\n";
2286         }
2287         if (defined $extra) {
2288                 print "<tr>\n" .
2289                       "<td colspan=\"4\">$extra</td>\n" .
2290                       "</tr>\n";
2291         }
2292         print "</table>\n";
2293 }
2294
2295 sub git_tags_body {
2296         # uses global variable $project
2297         my ($taglist, $from, $to, $extra) = @_;
2298         $from = 0 unless defined $from;
2299         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2300
2301         print "<table class=\"tags\" cellspacing=\"0\">\n";
2302         my $alternate = 1;
2303         for (my $i = $from; $i <= $to; $i++) {
2304                 my $entry = $taglist->[$i];
2305                 my %tag = %$entry;
2306                 my $comment = $tag{'subject'};
2307                 my $comment_short;
2308                 if (defined $comment) {
2309                         $comment_short = chop_str($comment, 30, 5);
2310                 }
2311                 if ($alternate) {
2312                         print "<tr class=\"dark\">\n";
2313                 } else {
2314                         print "<tr class=\"light\">\n";
2315                 }
2316                 $alternate ^= 1;
2317                 print "<td><i>$tag{'age'}</i></td>\n" .
2318                       "<td>" .
2319                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2320                                -class => "list name"}, esc_html($tag{'name'})) .
2321                       "</td>\n" .
2322                       "<td>";
2323                 if (defined $comment) {
2324                         print format_subject_html($comment, $comment_short,
2325                                                   href(action=>"tag", hash=>$tag{'id'}));
2326                 }
2327                 print "</td>\n" .
2328                       "<td class=\"selflink\">";
2329                 if ($tag{'type'} eq "tag") {
2330                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2331                 } else {
2332                         print "&nbsp;";
2333                 }
2334                 print "</td>\n" .
2335                       "<td class=\"link\">" . " | " .
2336                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2337                 if ($tag{'reftype'} eq "commit") {
2338                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2339                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2340                 } elsif ($tag{'reftype'} eq "blob") {
2341                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2342                 }
2343                 print "</td>\n" .
2344                       "</tr>";
2345         }
2346         if (defined $extra) {
2347                 print "<tr>\n" .
2348                       "<td colspan=\"5\">$extra</td>\n" .
2349                       "</tr>\n";
2350         }
2351         print "</table>\n";
2352 }
2353
2354 sub git_heads_body {
2355         # uses global variable $project
2356         my ($headlist, $head, $from, $to, $extra) = @_;
2357         $from = 0 unless defined $from;
2358         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2359
2360         print "<table class=\"heads\" cellspacing=\"0\">\n";
2361         my $alternate = 1;
2362         for (my $i = $from; $i <= $to; $i++) {
2363                 my $entry = $headlist->[$i];
2364                 my %ref = %$entry;
2365                 my $curr = $ref{'id'} eq $head;
2366                 if ($alternate) {
2367                         print "<tr class=\"dark\">\n";
2368                 } else {
2369                         print "<tr class=\"light\">\n";
2370                 }
2371                 $alternate ^= 1;
2372                 print "<td><i>$ref{'age'}</i></td>\n" .
2373                       ($curr ? "<td class=\"current_head\">" : "<td>") .
2374                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2375                                -class => "list name"},esc_html($ref{'name'})) .
2376                       "</td>\n" .
2377                       "<td class=\"link\">" .
2378                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2379                       $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2380                       $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2381                       "</td>\n" .
2382                       "</tr>";
2383         }
2384         if (defined $extra) {
2385                 print "<tr>\n" .
2386                       "<td colspan=\"3\">$extra</td>\n" .
2387                       "</tr>\n";
2388         }
2389         print "</table>\n";
2390 }
2391
2392 ## ======================================================================
2393 ## ======================================================================
2394 ## actions
2395
2396 sub git_project_list {
2397         my $order = $cgi->param('o');
2398         if (defined $order && $order !~ m/project|descr|owner|age/) {
2399                 die_error(undef, "Unknown order parameter");
2400         }
2401
2402         my @list = git_get_projects_list();
2403         my @projects;
2404         if (!@list) {
2405                 die_error(undef, "No projects found");
2406         }
2407         foreach my $pr (@list) {
2408                 my (@aa) = git_get_last_activity($pr->{'path'});
2409                 unless (@aa) {
2410                         next;
2411                 }
2412                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2413                 if (!defined $pr->{'descr'}) {
2414                         my $descr = git_get_project_description($pr->{'path'}) || "";
2415                         $pr->{'descr'} = chop_str($descr, 25, 5);
2416                 }
2417                 if (!defined $pr->{'owner'}) {
2418                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2419                 }
2420                 push @projects, $pr;
2421         }
2422
2423         git_header_html();
2424         if (-f $home_text) {
2425                 print "<div class=\"index_include\">\n";
2426                 open (my $fd, $home_text);
2427                 print <$fd>;
2428                 close $fd;
2429                 print "</div>\n";
2430         }
2431         print "<table class=\"project_list\">\n" .
2432               "<tr>\n";
2433         $order ||= "project";
2434         if ($order eq "project") {
2435                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2436                 print "<th>Project</th>\n";
2437         } else {
2438                 print "<th>" .
2439                       $cgi->a({-href => href(project=>undef, order=>'project'),
2440                                -class => "header"}, "Project") .
2441                       "</th>\n";
2442         }
2443         if ($order eq "descr") {
2444                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2445                 print "<th>Description</th>\n";
2446         } else {
2447                 print "<th>" .
2448                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2449                                -class => "header"}, "Description") .
2450                       "</th>\n";
2451         }
2452         if ($order eq "owner") {
2453                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2454                 print "<th>Owner</th>\n";
2455         } else {
2456                 print "<th>" .
2457                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2458                                -class => "header"}, "Owner") .
2459                       "</th>\n";
2460         }
2461         if ($order eq "age") {
2462                 @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2463                 print "<th>Last Change</th>\n";
2464         } else {
2465                 print "<th>" .
2466                       $cgi->a({-href => href(project=>undef, order=>'age'),
2467                                -class => "header"}, "Last Change") .
2468                       "</th>\n";
2469         }
2470         print "<th></th>\n" .
2471               "</tr>\n";
2472         my $alternate = 1;
2473         foreach my $pr (@projects) {
2474                 if ($alternate) {
2475                         print "<tr class=\"dark\">\n";
2476                 } else {
2477                         print "<tr class=\"light\">\n";
2478                 }
2479                 $alternate ^= 1;
2480                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2481                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2482                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2483                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2484                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2485                       $pr->{'age_string'} . "</td>\n" .
2486                       "<td class=\"link\">" .
2487                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2488                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2489                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2490                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2491                       "</td>\n" .
2492                       "</tr>\n";
2493         }
2494         print "</table>\n";
2495         git_footer_html();
2496 }
2497
2498 sub git_project_index {
2499         my @projects = git_get_projects_list();
2500
2501         print $cgi->header(
2502                 -type => 'text/plain',
2503                 -charset => 'utf-8',
2504                 -content_disposition => 'inline; filename="index.aux"');
2505
2506         foreach my $pr (@projects) {
2507                 if (!exists $pr->{'owner'}) {
2508                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2509                 }
2510
2511                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2512                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2513                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2514                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2515                 $path  =~ s/ /\+/g;
2516                 $owner =~ s/ /\+/g;
2517
2518                 print "$path $owner\n";
2519         }
2520 }
2521
2522 sub git_summary {
2523         my $descr = git_get_project_description($project) || "none";
2524         my $head = git_get_head_hash($project);
2525         my %co = parse_commit($head);
2526         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2527
2528         my $owner = git_get_project_owner($project);
2529
2530         my $refs = git_get_references();
2531         my @taglist  = git_get_tags_list(15);
2532         my @headlist = git_get_heads_list(15);
2533
2534         git_header_html();
2535         git_print_page_nav('summary','', $head);
2536
2537         print "<div class=\"title\">&nbsp;</div>\n";
2538         print "<table cellspacing=\"0\">\n" .
2539               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2540               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2541               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2542         # use per project git URL list in $projectroot/$project/cloneurl
2543         # or make project git URL from git base URL and project name
2544         my $url_tag = "URL";
2545         my @url_list = git_get_project_url_list($project);
2546         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2547         foreach my $git_url (@url_list) {
2548                 next unless $git_url;
2549                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2550                 $url_tag = "";
2551         }
2552         print "</table>\n";
2553
2554         if (-s "$projectroot/$project/README.html") {
2555                 if (open my $fd, "$projectroot/$project/README.html") {
2556                         print "<div class=\"title\">readme</div>\n";
2557                         print $_ while (<$fd>);
2558                         close $fd;
2559                 }
2560         }
2561
2562         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2563                 git_get_head_hash($project), "--"
2564                 or die_error(undef, "Open git-rev-list failed");
2565         my @revlist = map { chomp; $_ } <$fd>;
2566         close $fd;
2567         git_print_header_div('shortlog');
2568         git_shortlog_body(\@revlist, 0, 15, $refs,
2569                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2570
2571         if (@taglist) {
2572                 git_print_header_div('tags');
2573                 git_tags_body(\@taglist, 0, 15,
2574                               $cgi->a({-href => href(action=>"tags")}, "..."));
2575         }
2576
2577         if (@headlist) {
2578                 git_print_header_div('heads');
2579                 git_heads_body(\@headlist, $head, 0, 15,
2580                                $cgi->a({-href => href(action=>"heads")}, "..."));
2581         }
2582
2583         git_footer_html();
2584 }
2585
2586 sub git_tag {
2587         my $head = git_get_head_hash($project);
2588         git_header_html();
2589         git_print_page_nav('','', $head,undef,$head);
2590         my %tag = parse_tag($hash);
2591         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2592         print "<div class=\"title_text\">\n" .
2593               "<table cellspacing=\"0\">\n" .
2594               "<tr>\n" .
2595               "<td>object</td>\n" .
2596               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2597                                $tag{'object'}) . "</td>\n" .
2598               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2599                                               $tag{'type'}) . "</td>\n" .
2600               "</tr>\n";
2601         if (defined($tag{'author'})) {
2602                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2603                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2604                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2605                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2606                         "</td></tr>\n";
2607         }
2608         print "</table>\n\n" .
2609               "</div>\n";
2610         print "<div class=\"page_body\">";
2611         my $comment = $tag{'comment'};
2612         foreach my $line (@$comment) {
2613                 print esc_html($line) . "<br/>\n";
2614         }
2615         print "</div>\n";
2616         git_footer_html();
2617 }
2618
2619 sub git_blame2 {
2620         my $fd;
2621         my $ftype;
2622
2623         my ($have_blame) = gitweb_check_feature('blame');
2624         if (!$have_blame) {
2625                 die_error('403 Permission denied', "Permission denied");
2626         }
2627         die_error('404 Not Found', "File name not defined") if (!$file_name);
2628         $hash_base ||= git_get_head_hash($project);
2629         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2630         my %co = parse_commit($hash_base)
2631                 or die_error(undef, "Reading commit failed");
2632         if (!defined $hash) {
2633                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2634                         or die_error(undef, "Error looking up file");
2635         }
2636         $ftype = git_get_type($hash);
2637         if ($ftype !~ "blob") {
2638                 die_error("400 Bad Request", "Object is not a blob");
2639         }
2640         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2641               $file_name, $hash_base)
2642                 or die_error(undef, "Open git-blame failed");
2643         git_header_html();
2644         my $formats_nav =
2645                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2646                         "blob") .
2647                 " | " .
2648                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2649                         "history") .
2650                 " | " .
2651                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2652                         "HEAD");
2653         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2654         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2655         git_print_page_path($file_name, $ftype, $hash_base);
2656         my @rev_color = (qw(light2 dark2));
2657         my $num_colors = scalar(@rev_color);
2658         my $current_color = 0;
2659         my $last_rev;
2660         print <<HTML;
2661 <div class="page_body">
2662 <table class="blame">
2663 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2664 HTML
2665         my %metainfo = ();
2666         while (1) {
2667                 $_ = <$fd>;
2668                 last unless defined $_;
2669                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2670                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2671                 if (!exists $metainfo{$full_rev}) {
2672                         $metainfo{$full_rev} = {};
2673                 }
2674                 my $meta = $metainfo{$full_rev};
2675                 while (<$fd>) {
2676                         last if (s/^\t//);
2677                         if (/^(\S+) (.*)$/) {
2678                                 $meta->{$1} = $2;
2679                         }
2680                 }
2681                 my $data = $_;
2682                 my $rev = substr($full_rev, 0, 8);
2683                 my $author = $meta->{'author'};
2684                 my %date = parse_date($meta->{'author-time'},
2685                                       $meta->{'author-tz'});
2686                 my $date = $date{'iso-tz'};
2687                 if ($group_size) {
2688                         $current_color = ++$current_color % $num_colors;
2689                 }
2690                 print "<tr class=\"$rev_color[$current_color]\">\n";
2691                 if ($group_size) {
2692                         print "<td class=\"sha1\"";
2693                         print " title=\"". esc_html($author) . ", $date\"";
2694                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2695                         print ">";
2696                         print $cgi->a({-href => href(action=>"commit",
2697                                                      hash=>$full_rev,
2698                                                      file_name=>$file_name)},
2699                                       esc_html($rev));
2700                         print "</td>\n";
2701                 }
2702                 my $blamed = href(action => 'blame',
2703                                   file_name => $meta->{'filename'},
2704                                   hash_base => $full_rev);
2705                 print "<td class=\"linenr\">";
2706                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2707                                 -id => "l$lineno",
2708                                 -class => "linenr" },
2709                               esc_html($lineno));
2710                 print "</td>";
2711                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2712                 print "</tr>\n";
2713         }
2714         print "</table>\n";
2715         print "</div>";
2716         close $fd
2717                 or print "Reading blob failed\n";
2718         git_footer_html();
2719 }
2720
2721 sub git_blame {
2722         my $fd;
2723
2724         my ($have_blame) = gitweb_check_feature('blame');
2725         if (!$have_blame) {
2726                 die_error('403 Permission denied', "Permission denied");
2727         }
2728         die_error('404 Not Found', "File name not defined") if (!$file_name);
2729         $hash_base ||= git_get_head_hash($project);
2730         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2731         my %co = parse_commit($hash_base)
2732                 or die_error(undef, "Reading commit failed");
2733         if (!defined $hash) {
2734                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2735                         or die_error(undef, "Error lookup file");
2736         }
2737         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2738                 or die_error(undef, "Open git-annotate failed");
2739         git_header_html();
2740         my $formats_nav =
2741                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2742                         "blob") .
2743                 " | " .
2744                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2745                         "history") .
2746                 " | " .
2747                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2748                         "HEAD");
2749         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2750         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2751         git_print_page_path($file_name, 'blob', $hash_base);
2752         print "<div class=\"page_body\">\n";
2753         print <<HTML;
2754 <table class="blame">
2755   <tr>
2756     <th>Commit</th>
2757     <th>Age</th>
2758     <th>Author</th>
2759     <th>Line</th>
2760     <th>Data</th>
2761   </tr>
2762 HTML
2763         my @line_class = (qw(light dark));
2764         my $line_class_len = scalar (@line_class);
2765         my $line_class_num = $#line_class;
2766         while (my $line = <$fd>) {
2767                 my $long_rev;
2768                 my $short_rev;
2769                 my $author;
2770                 my $time;
2771                 my $lineno;
2772                 my $data;
2773                 my $age;
2774                 my $age_str;
2775                 my $age_class;
2776
2777                 chomp $line;
2778                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2779
2780                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2781                         $long_rev = $1;
2782                         $author   = $2;
2783                         $time     = $3;
2784                         $lineno   = $4;
2785                         $data     = $5;
2786                 } else {
2787                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2788                         next;
2789                 }
2790                 $short_rev  = substr ($long_rev, 0, 8);
2791                 $age        = time () - $time;
2792                 $age_str    = age_string ($age);
2793                 $age_str    =~ s/ /&nbsp;/g;
2794                 $age_class  = age_class($age);
2795                 $author     = esc_html ($author);
2796                 $author     =~ s/ /&nbsp;/g;
2797
2798                 $data = untabify($data);
2799                 $data = esc_html ($data);
2800
2801                 print <<HTML;
2802   <tr class="$line_class[$line_class_num]">
2803     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2804     <td class="$age_class">$age_str</td>
2805     <td>$author</td>
2806     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2807     <td class="pre">$data</td>
2808   </tr>
2809 HTML
2810         } # while (my $line = <$fd>)
2811         print "</table>\n\n";
2812         close $fd
2813                 or print "Reading blob failed.\n";
2814         print "</div>";
2815         git_footer_html();
2816 }
2817
2818 sub git_tags {
2819         my $head = git_get_head_hash($project);
2820         git_header_html();
2821         git_print_page_nav('','', $head,undef,$head);
2822         git_print_header_div('summary', $project);
2823
2824         my @tagslist = git_get_tags_list();
2825         if (@tagslist) {
2826                 git_tags_body(\@tagslist);
2827         }
2828         git_footer_html();
2829 }
2830
2831 sub git_heads {
2832         my $head = git_get_head_hash($project);
2833         git_header_html();
2834         git_print_page_nav('','', $head,undef,$head);
2835         git_print_header_div('summary', $project);
2836
2837         my @headslist = git_get_heads_list();
2838         if (@headslist) {
2839                 git_heads_body(\@headslist, $head);
2840         }
2841         git_footer_html();
2842 }
2843
2844 sub git_blob_plain {
2845         my $expires;
2846
2847         if (!defined $hash) {
2848                 if (defined $file_name) {
2849                         my $base = $hash_base || git_get_head_hash($project);
2850                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2851                                 or die_error(undef, "Error lookup file");
2852                 } else {
2853                         die_error(undef, "No file name defined");
2854                 }
2855         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2856                 # blobs defined by non-textual hash id's can be cached
2857                 $expires = "+1d";
2858         }
2859
2860         my $type = shift;
2861         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2862                 or die_error(undef, "Couldn't cat $file_name, $hash");
2863
2864         $type ||= blob_mimetype($fd, $file_name);
2865
2866         # save as filename, even when no $file_name is given
2867         my $save_as = "$hash";
2868         if (defined $file_name) {
2869                 $save_as = $file_name;
2870         } elsif ($type =~ m/^text\//) {
2871                 $save_as .= '.txt';
2872         }
2873
2874         print $cgi->header(
2875                 -type => "$type",
2876                 -expires=>$expires,
2877                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2878         undef $/;
2879         binmode STDOUT, ':raw';
2880         print <$fd>;
2881         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2882         $/ = "\n";
2883         close $fd;
2884 }
2885
2886 sub git_blob {
2887         my $expires;
2888
2889         if (!defined $hash) {
2890                 if (defined $file_name) {
2891                         my $base = $hash_base || git_get_head_hash($project);
2892                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2893                                 or die_error(undef, "Error lookup file");
2894                 } else {
2895                         die_error(undef, "No file name defined");
2896                 }
2897         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2898                 # blobs defined by non-textual hash id's can be cached
2899                 $expires = "+1d";
2900         }
2901
2902         my ($have_blame) = gitweb_check_feature('blame');
2903         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2904                 or die_error(undef, "Couldn't cat $file_name, $hash");
2905         my $mimetype = blob_mimetype($fd, $file_name);
2906         if ($mimetype !~ m/^text\//) {
2907                 close $fd;
2908                 return git_blob_plain($mimetype);
2909         }
2910         git_header_html(undef, $expires);
2911         my $formats_nav = '';
2912         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2913                 if (defined $file_name) {
2914                         if ($have_blame) {
2915                                 $formats_nav .=
2916                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2917                                                                hash=>$hash, file_name=>$file_name)},
2918                                                 "blame") .
2919                                         " | ";
2920                         }
2921                         $formats_nav .=
2922                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2923                                                        hash=>$hash, file_name=>$file_name)},
2924                                         "history") .
2925                                 " | " .
2926                                 $cgi->a({-href => href(action=>"blob_plain",
2927                                                        hash=>$hash, file_name=>$file_name)},
2928                                         "raw") .
2929                                 " | " .
2930                                 $cgi->a({-href => href(action=>"blob",
2931                                                        hash_base=>"HEAD", file_name=>$file_name)},
2932                                         "HEAD");
2933                 } else {
2934                         $formats_nav .=
2935                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2936                 }
2937                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2938                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2939         } else {
2940                 print "<div class=\"page_nav\">\n" .
2941                       "<br/><br/></div>\n" .
2942                       "<div class=\"title\">$hash</div>\n";
2943         }
2944         git_print_page_path($file_name, "blob", $hash_base);
2945         print "<div class=\"page_body\">\n";
2946         my $nr;
2947         while (my $line = <$fd>) {
2948                 chomp $line;
2949                 $nr++;
2950                 $line = untabify($line);
2951                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2952                        $nr, $nr, $nr, esc_html($line, -nbsp=>1);
2953         }
2954         close $fd
2955                 or print "Reading blob failed.\n";
2956         print "</div>";
2957         git_footer_html();
2958 }
2959
2960 sub git_tree {
2961         my $have_snapshot = gitweb_have_snapshot();
2962
2963         if (!defined $hash_base) {
2964                 $hash_base = "HEAD";
2965         }
2966         if (!defined $hash) {
2967                 if (defined $file_name) {
2968                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2969                 } else {
2970                         $hash = $hash_base;
2971                 }
2972         }
2973         $/ = "\0";
2974         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2975                 or die_error(undef, "Open git-ls-tree failed");
2976         my @entries = map { chomp; $_ } <$fd>;
2977         close $fd or die_error(undef, "Reading tree failed");
2978         $/ = "\n";
2979
2980         my $refs = git_get_references();
2981         my $ref = format_ref_marker($refs, $hash_base);
2982         git_header_html();
2983         my $basedir = '';
2984         my ($have_blame) = gitweb_check_feature('blame');
2985         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2986                 my @views_nav = ();
2987                 if (defined $file_name) {
2988                         push @views_nav,
2989                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2990                                                        hash=>$hash, file_name=>$file_name)},
2991                                         "history"),
2992                                 $cgi->a({-href => href(action=>"tree",
2993                                                        hash_base=>"HEAD", file_name=>$file_name)},
2994                                         "HEAD"),
2995                 }
2996                 if ($have_snapshot) {
2997                         # FIXME: Should be available when we have no hash base as well.
2998                         push @views_nav,
2999                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3000                                         "snapshot");
3001                 }
3002                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3003                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3004         } else {
3005                 undef $hash_base;
3006                 print "<div class=\"page_nav\">\n";
3007                 print "<br/><br/></div>\n";
3008                 print "<div class=\"title\">$hash</div>\n";
3009         }
3010         if (defined $file_name) {
3011                 $basedir = $file_name;
3012                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
3013                         $basedir .= '/';
3014                 }
3015         }
3016         git_print_page_path($file_name, 'tree', $hash_base);
3017         print "<div class=\"page_body\">\n";
3018         print "<table cellspacing=\"0\">\n";
3019         my $alternate = 1;
3020         # '..' (top directory) link if possible
3021         if (defined $hash_base &&
3022             defined $file_name && $file_name =~ m![^/]+$!) {
3023                 if ($alternate) {
3024                         print "<tr class=\"dark\">\n";
3025                 } else {
3026                         print "<tr class=\"light\">\n";
3027                 }
3028                 $alternate ^= 1;
3029
3030                 my $up = $file_name;
3031                 $up =~ s!/?[^/]+$!!;
3032                 undef $up unless $up;
3033                 # based on git_print_tree_entry
3034                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
3035                 print '<td class="list">';
3036                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3037                                              file_name=>$up)},
3038                               "..");
3039                 print "</td>\n";
3040                 print "<td class=\"link\"></td>\n";
3041
3042                 print "</tr>\n";
3043         }
3044         foreach my $line (@entries) {
3045                 my %t = parse_ls_tree_line($line, -z => 1);
3046
3047                 if ($alternate) {
3048                         print "<tr class=\"dark\">\n";
3049                 } else {
3050                         print "<tr class=\"light\">\n";
3051                 }
3052                 $alternate ^= 1;
3053
3054                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3055
3056                 print "</tr>\n";
3057         }
3058         print "</table>\n" .
3059               "</div>";
3060         git_footer_html();
3061 }
3062
3063 sub git_snapshot {
3064         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3065         my $have_snapshot = (defined $ctype && defined $suffix);
3066         if (!$have_snapshot) {
3067                 die_error('403 Permission denied', "Permission denied");
3068         }
3069
3070         if (!defined $hash) {
3071                 $hash = git_get_head_hash($project);
3072         }
3073
3074         my $filename = basename($project) . "-$hash.tar.$suffix";
3075
3076         print $cgi->header(
3077                 -type => 'application/x-tar',
3078                 -content_encoding => $ctype,
3079                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3080                 -status => '200 OK');
3081
3082         my $git = git_cmd_str();
3083         my $name = $project;
3084         $name =~ s/\047/\047\\\047\047/g;
3085         open my $fd, "-|",
3086         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3087                 or die_error(undef, "Execute git-tar-tree failed.");
3088         binmode STDOUT, ':raw';
3089         print <$fd>;
3090         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3091         close $fd;
3092
3093 }
3094
3095 sub git_log {
3096         my $head = git_get_head_hash($project);
3097         if (!defined $hash) {
3098                 $hash = $head;
3099         }
3100         if (!defined $page) {
3101                 $page = 0;
3102         }
3103         my $refs = git_get_references();
3104
3105         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3106         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3107                 or die_error(undef, "Open git-rev-list failed");
3108         my @revlist = map { chomp; $_ } <$fd>;
3109         close $fd;
3110
3111         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3112
3113         git_header_html();
3114         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3115
3116         if (!@revlist) {
3117                 my %co = parse_commit($hash);
3118
3119                 git_print_header_div('summary', $project);
3120                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3121         }
3122         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3123                 my $commit = $revlist[$i];
3124                 my $ref = format_ref_marker($refs, $commit);
3125                 my %co = parse_commit($commit);
3126                 next if !%co;
3127                 my %ad = parse_date($co{'author_epoch'});
3128                 git_print_header_div('commit',
3129                                "<span class=\"age\">$co{'age_string'}</span>" .
3130                                esc_html($co{'title'}) . $ref,
3131                                $commit);
3132                 print "<div class=\"title_text\">\n" .
3133                       "<div class=\"log_link\">\n" .
3134                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3135                       " | " .
3136                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3137                       " | " .
3138                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3139                       "<br/>\n" .
3140                       "</div>\n" .
3141                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3142                       "</div>\n";
3143
3144                 print "<div class=\"log_body\">\n";
3145                 git_print_log($co{'comment'}, -final_empty_line=> 1);
3146                 print "</div>\n";
3147         }
3148         git_footer_html();
3149 }
3150
3151 sub git_commit {
3152         my %co = parse_commit($hash);
3153         if (!%co) {
3154                 die_error(undef, "Unknown commit object");
3155         }
3156         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3157         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3158
3159         my $parent = $co{'parent'};
3160         if (!defined $parent) {
3161                 $parent = "--root";
3162         }
3163         open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3164                 @diff_opts, $parent, $hash, "--"
3165                 or die_error(undef, "Open git-diff-tree failed");
3166         my @difftree = map { chomp; $_ } <$fd>;
3167         close $fd or die_error(undef, "Reading git-diff-tree failed");
3168
3169         # non-textual hash id's can be cached
3170         my $expires;
3171         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3172                 $expires = "+1d";
3173         }
3174         my $refs = git_get_references();
3175         my $ref = format_ref_marker($refs, $co{'id'});
3176
3177         my $have_snapshot = gitweb_have_snapshot();
3178
3179         my @views_nav = ();
3180         if (defined $file_name && defined $co{'parent'}) {
3181                 push @views_nav,
3182                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3183                                 "blame");
3184         }
3185         git_header_html(undef, $expires);
3186         git_print_page_nav('commit', '',
3187                            $hash, $co{'tree'}, $hash,
3188                            join (' | ', @views_nav));
3189
3190         if (defined $co{'parent'}) {
3191                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3192         } else {
3193                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3194         }
3195         print "<div class=\"title_text\">\n" .
3196               "<table cellspacing=\"0\">\n";
3197         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3198               "<tr>" .
3199               "<td></td><td> $ad{'rfc2822'}";
3200         if ($ad{'hour_local'} < 6) {
3201                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3202                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3203         } else {
3204                 printf(" (%02d:%02d %s)",
3205                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3206         }
3207         print "</td>" .
3208               "</tr>\n";
3209         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3210         print "<tr><td></td><td> $cd{'rfc2822'}" .
3211               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3212               "</td></tr>\n";
3213         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3214         print "<tr>" .
3215               "<td>tree</td>" .
3216               "<td class=\"sha1\">" .
3217               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3218                        class => "list"}, $co{'tree'}) .
3219               "</td>" .
3220               "<td class=\"link\">" .
3221               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3222                       "tree");
3223         if ($have_snapshot) {
3224                 print " | " .
3225                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3226         }
3227         print "</td>" .
3228               "</tr>\n";
3229         my $parents = $co{'parents'};
3230         foreach my $par (@$parents) {
3231                 print "<tr>" .
3232                       "<td>parent</td>" .
3233                       "<td class=\"sha1\">" .
3234                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3235                                class => "list"}, $par) .
3236                       "</td>" .
3237                       "<td class=\"link\">" .
3238                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3239                       " | " .
3240                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3241                       "</td>" .
3242                       "</tr>\n";
3243         }
3244         print "</table>".
3245               "</div>\n";
3246
3247         print "<div class=\"page_body\">\n";
3248         git_print_log($co{'comment'});
3249         print "</div>\n";
3250
3251         git_difftree_body(\@difftree, $hash, $parent);
3252
3253         git_footer_html();
3254 }
3255
3256 sub git_blobdiff {
3257         my $format = shift || 'html';
3258
3259         my $fd;
3260         my @difftree;
3261         my %diffinfo;
3262         my $expires;
3263
3264         # preparing $fd and %diffinfo for git_patchset_body
3265         # new style URI
3266         if (defined $hash_base && defined $hash_parent_base) {
3267                 if (defined $file_name) {
3268                         # read raw output
3269                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3270                                 $hash_parent_base, $hash_base,
3271                                 "--", $file_name
3272                                 or die_error(undef, "Open git-diff-tree failed");
3273                         @difftree = map { chomp; $_ } <$fd>;
3274                         close $fd
3275                                 or die_error(undef, "Reading git-diff-tree failed");
3276                         @difftree
3277                                 or die_error('404 Not Found', "Blob diff not found");
3278
3279                 } elsif (defined $hash &&
3280                          $hash =~ /[0-9a-fA-F]{40}/) {
3281                         # try to find filename from $hash
3282
3283                         # read filtered raw output
3284                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3285                                 $hash_parent_base, $hash_base, "--"
3286                                 or die_error(undef, "Open git-diff-tree failed");
3287                         @difftree =
3288                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3289                                 # $hash == to_id
3290                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3291                                 map { chomp; $_ } <$fd>;
3292                         close $fd
3293                                 or die_error(undef, "Reading git-diff-tree failed");
3294                         @difftree
3295                                 or die_error('404 Not Found', "Blob diff not found");
3296
3297                 } else {
3298                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3299                 }
3300
3301                 if (@difftree > 1) {
3302                         die_error('404 Not Found', "Ambiguous blob diff specification");
3303                 }
3304
3305                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3306                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3307                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3308
3309                 $hash_parent ||= $diffinfo{'from_id'};
3310                 $hash        ||= $diffinfo{'to_id'};
3311
3312                 # non-textual hash id's can be cached
3313                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3314                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3315                         $expires = '+1d';
3316                 }
3317
3318                 # open patch output
3319                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3320                         '-p', $hash_parent_base, $hash_base,
3321                         "--", $file_name
3322                         or die_error(undef, "Open git-diff-tree failed");
3323         }
3324
3325         # old/legacy style URI
3326         if (!%diffinfo && # if new style URI failed
3327             defined $hash && defined $hash_parent) {
3328                 # fake git-diff-tree raw output
3329                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3330                 $diffinfo{'from_id'} = $hash_parent;
3331                 $diffinfo{'to_id'}   = $hash;
3332                 if (defined $file_name) {
3333                         if (defined $file_parent) {
3334                                 $diffinfo{'status'} = '2';
3335                                 $diffinfo{'from_file'} = $file_parent;
3336                                 $diffinfo{'to_file'}   = $file_name;
3337                         } else { # assume not renamed
3338                                 $diffinfo{'status'} = '1';
3339                                 $diffinfo{'from_file'} = $file_name;
3340                                 $diffinfo{'to_file'}   = $file_name;
3341                         }
3342                 } else { # no filename given
3343                         $diffinfo{'status'} = '2';
3344                         $diffinfo{'from_file'} = $hash_parent;
3345                         $diffinfo{'to_file'}   = $hash;
3346                 }
3347
3348                 # non-textual hash id's can be cached
3349                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3350                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3351                         $expires = '+1d';
3352                 }
3353
3354                 # open patch output
3355                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3356                         $hash_parent, $hash, "--"
3357                         or die_error(undef, "Open git-diff failed");
3358         } else  {
3359                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3360                         unless %diffinfo;
3361         }
3362
3363         # header
3364         if ($format eq 'html') {
3365                 my $formats_nav =
3366                         $cgi->a({-href => href(action=>"blobdiff_plain",
3367                                                hash=>$hash, hash_parent=>$hash_parent,
3368                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3369                                                file_name=>$file_name, file_parent=>$file_parent)},
3370                                 "raw");
3371                 git_header_html(undef, $expires);
3372                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3373                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3374                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3375                 } else {
3376                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3377                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3378                 }
3379                 if (defined $file_name) {
3380                         git_print_page_path($file_name, "blob", $hash_base);
3381                 } else {
3382                         print "<div class=\"page_path\"></div>\n";
3383                 }
3384
3385         } elsif ($format eq 'plain') {
3386                 print $cgi->header(
3387                         -type => 'text/plain',
3388                         -charset => 'utf-8',
3389                         -expires => $expires,
3390                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3391
3392                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3393
3394         } else {
3395                 die_error(undef, "Unknown blobdiff format");
3396         }
3397
3398         # patch
3399         if ($format eq 'html') {
3400                 print "<div class=\"page_body\">\n";
3401
3402                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3403                 close $fd;
3404
3405                 print "</div>\n"; # class="page_body"
3406                 git_footer_html();
3407
3408         } else {
3409                 while (my $line = <$fd>) {
3410                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3411                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3412
3413                         print $line;
3414
3415                         last if $line =~ m!^\+\+\+!;
3416                 }
3417                 local $/ = undef;
3418                 print <$fd>;
3419                 close $fd;
3420         }
3421 }
3422
3423 sub git_blobdiff_plain {
3424         git_blobdiff('plain');
3425 }
3426
3427 sub git_commitdiff {
3428         my $format = shift || 'html';
3429         my %co = parse_commit($hash);
3430         if (!%co) {
3431                 die_error(undef, "Unknown commit object");
3432         }
3433
3434         # we need to prepare $formats_nav before any parameter munging
3435         my $formats_nav;
3436         if ($format eq 'html') {
3437                 $formats_nav =
3438                         $cgi->a({-href => href(action=>"commitdiff_plain",
3439                                                hash=>$hash, hash_parent=>$hash_parent)},
3440                                 "raw");
3441
3442                 if (defined $hash_parent) {
3443                         # commitdiff with two commits given
3444                         my $hash_parent_short = $hash_parent;
3445                         if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3446                                 $hash_parent_short = substr($hash_parent, 0, 7);
3447                         }
3448                         $formats_nav .=
3449                                 ' (from: ' .
3450                                 $cgi->a({-href => href(action=>"commitdiff",
3451                                                        hash=>$hash_parent)},
3452                                         esc_html($hash_parent_short)) .
3453                                 ')';
3454                 } elsif (!$co{'parent'}) {
3455                         # --root commitdiff
3456                         $formats_nav .= ' (initial)';
3457                 } elsif (scalar @{$co{'parents'}} == 1) {
3458                         # single parent commit
3459                         $formats_nav .=
3460                                 ' (parent: ' .
3461                                 $cgi->a({-href => href(action=>"commitdiff",
3462                                                        hash=>$co{'parent'})},
3463                                         esc_html(substr($co{'parent'}, 0, 7))) .
3464                                 ')';
3465                 } else {
3466                         # merge commit
3467                         $formats_nav .=
3468                                 ' (merge: ' .
3469                                 join(' ', map {
3470                                         $cgi->a({-href => href(action=>"commitdiff",
3471                                                                hash=>$_)},
3472                                                 esc_html(substr($_, 0, 7)));
3473                                 } @{$co{'parents'}} ) .
3474                                 ')';
3475                 }
3476         }
3477
3478         if (!defined $hash_parent) {
3479                 $hash_parent = $co{'parent'} || '--root';
3480         }
3481
3482         # read commitdiff
3483         my $fd;
3484         my @difftree;
3485         if ($format eq 'html') {
3486                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3487                         "--no-commit-id", "--patch-with-raw", "--full-index",
3488                         $hash_parent, $hash, "--"
3489                         or die_error(undef, "Open git-diff-tree failed");
3490
3491                 while (chomp(my $line = <$fd>)) {
3492                         # empty line ends raw part of diff-tree output
3493                         last unless $line;
3494                         push @difftree, $line;
3495                 }
3496
3497         } elsif ($format eq 'plain') {
3498                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3499                         '-p', $hash_parent, $hash, "--"
3500                         or die_error(undef, "Open git-diff-tree failed");
3501
3502         } else {
3503                 die_error(undef, "Unknown commitdiff format");
3504         }
3505
3506         # non-textual hash id's can be cached
3507         my $expires;
3508         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3509                 $expires = "+1d";
3510         }
3511
3512         # write commit message
3513         if ($format eq 'html') {
3514                 my $refs = git_get_references();
3515                 my $ref = format_ref_marker($refs, $co{'id'});
3516
3517                 git_header_html(undef, $expires);
3518                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3519                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3520                 git_print_authorship(\%co);
3521                 print "<div class=\"page_body\">\n";
3522                 if (@{$co{'comment'}} > 1) {
3523                         print "<div class=\"log\">\n";
3524                         git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3525                         print "</div>\n"; # class="log"
3526                 }
3527
3528         } elsif ($format eq 'plain') {
3529                 my $refs = git_get_references("tags");
3530                 my $tagname = git_get_rev_name_tags($hash);
3531                 my $filename = basename($project) . "-$hash.patch";
3532
3533                 print $cgi->header(
3534                         -type => 'text/plain',
3535                         -charset => 'utf-8',
3536                         -expires => $expires,
3537                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3538                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3539                 print <<TEXT;
3540 From: $co{'author'}
3541 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3542 Subject: $co{'title'}
3543 TEXT
3544                 print "X-Git-Tag: $tagname\n" if $tagname;
3545                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3546
3547                 foreach my $line (@{$co{'comment'}}) {
3548                         print "$line\n";
3549                 }
3550                 print "---\n\n";
3551         }
3552
3553         # write patch
3554         if ($format eq 'html') {
3555                 git_difftree_body(\@difftree, $hash, $hash_parent);
3556                 print "<br/>\n";
3557
3558                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3559                 close $fd;
3560                 print "</div>\n"; # class="page_body"
3561                 git_footer_html();
3562
3563         } elsif ($format eq 'plain') {
3564                 local $/ = undef;
3565                 print <$fd>;
3566                 close $fd
3567                         or print "Reading git-diff-tree failed\n";
3568         }
3569 }
3570
3571 sub git_commitdiff_plain {
3572         git_commitdiff('plain');
3573 }
3574
3575 sub git_history {
3576         if (!defined $hash_base) {
3577                 $hash_base = git_get_head_hash($project);
3578         }
3579         if (!defined $page) {
3580                 $page = 0;
3581         }
3582         my $ftype;
3583         my %co = parse_commit($hash_base);
3584         if (!%co) {
3585                 die_error(undef, "Unknown commit object");
3586         }
3587
3588         my $refs = git_get_references();
3589         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3590
3591         if (!defined $hash && defined $file_name) {
3592                 $hash = git_get_hash_by_path($hash_base, $file_name);
3593         }
3594         if (defined $hash) {
3595                 $ftype = git_get_type($hash);
3596         }
3597
3598         open my $fd, "-|",
3599                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3600                         or die_error(undef, "Open git-rev-list-failed");
3601         my @revlist = map { chomp; $_ } <$fd>;
3602         close $fd
3603                 or die_error(undef, "Reading git-rev-list failed");
3604
3605         my $paging_nav = '';
3606         if ($page > 0) {
3607                 $paging_nav .=
3608                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3609                                                file_name=>$file_name)},
3610                                 "first");
3611                 $paging_nav .= " &sdot; " .
3612                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3613                                                file_name=>$file_name, page=>$page-1),
3614                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3615         } else {
3616                 $paging_nav .= "first";
3617                 $paging_nav .= " &sdot; prev";
3618         }
3619         if ($#revlist >= (100 * ($page+1)-1)) {
3620                 $paging_nav .= " &sdot; " .
3621                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3622                                                file_name=>$file_name, page=>$page+1),
3623                                  -accesskey => "n", -title => "Alt-n"}, "next");
3624         } else {
3625                 $paging_nav .= " &sdot; next";
3626         }
3627         my $next_link = '';
3628         if ($#revlist >= (100 * ($page+1)-1)) {
3629                 $next_link =
3630                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3631                                                file_name=>$file_name, page=>$page+1),
3632                                  -title => "Alt-n"}, "next");
3633         }
3634
3635         git_header_html();
3636         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3637         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3638         git_print_page_path($file_name, $ftype, $hash_base);
3639
3640         git_history_body(\@revlist, ($page * 100), $#revlist,
3641                          $refs, $hash_base, $ftype, $next_link);
3642
3643         git_footer_html();
3644 }
3645
3646 sub git_search {
3647         if (!defined $searchtext) {
3648                 die_error(undef, "Text field empty");
3649         }
3650         if (!defined $hash) {
3651                 $hash = git_get_head_hash($project);
3652         }
3653         my %co = parse_commit($hash);
3654         if (!%co) {
3655                 die_error(undef, "Unknown commit object");
3656         }
3657
3658         $searchtype ||= 'commit';
3659         if ($searchtype eq 'pickaxe') {
3660                 # pickaxe may take all resources of your box and run for several minutes
3661                 # with every query - so decide by yourself how public you make this feature
3662                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3663                 if (!$have_pickaxe) {
3664                         die_error('403 Permission denied', "Permission denied");
3665                 }
3666         }
3667
3668         git_header_html();
3669         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3670         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3671
3672         print "<table cellspacing=\"0\">\n";
3673         my $alternate = 1;
3674         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3675                 $/ = "\0";
3676                 open my $fd, "-|", git_cmd(), "rev-list",
3677                         "--header", "--parents", $hash, "--"
3678                         or next;
3679                 while (my $commit_text = <$fd>) {
3680                         if (!grep m/$searchtext/i, $commit_text) {
3681                                 next;
3682                         }
3683                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3684                                 next;
3685                         }
3686                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3687                                 next;
3688                         }
3689                         my @commit_lines = split "\n", $commit_text;
3690                         my %co = parse_commit(undef, \@commit_lines);
3691                         if (!%co) {
3692                                 next;
3693                         }
3694                         if ($alternate) {
3695                                 print "<tr class=\"dark\">\n";
3696                         } else {
3697                                 print "<tr class=\"light\">\n";
3698                         }
3699                         $alternate ^= 1;
3700                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3701                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3702                               "<td>" .
3703                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3704                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3705                         my $comment = $co{'comment'};
3706                         foreach my $line (@$comment) {
3707                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3708                                         my $lead = esc_html($1) || "";
3709                                         $lead = chop_str($lead, 30, 10);
3710                                         my $match = esc_html($2) || "";
3711                                         my $trail = esc_html($3) || "";
3712                                         $trail = chop_str($trail, 30, 10);
3713                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3714                                         print chop_str($text, 80, 5) . "<br/>\n";
3715                                 }
3716                         }
3717                         print "</td>\n" .
3718                               "<td class=\"link\">" .
3719                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3720                               " | " .
3721                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3722                         print "</td>\n" .
3723                               "</tr>\n";
3724                 }
3725                 close $fd;
3726         }
3727
3728         if ($searchtype eq 'pickaxe') {
3729                 $/ = "\n";
3730                 my $git_command = git_cmd_str();
3731                 open my $fd, "-|", "$git_command rev-list $hash | " .
3732                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3733                 undef %co;
3734                 my @files;
3735                 while (my $line = <$fd>) {
3736                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3737                                 my %set;
3738                                 $set{'file'} = $6;
3739                                 $set{'from_id'} = $3;
3740                                 $set{'to_id'} = $4;
3741                                 $set{'id'} = $set{'to_id'};
3742                                 if ($set{'id'} =~ m/0{40}/) {
3743                                         $set{'id'} = $set{'from_id'};
3744                                 }
3745                                 if ($set{'id'} =~ m/0{40}/) {
3746                                         next;
3747                                 }
3748                                 push @files, \%set;
3749                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3750                                 if (%co) {
3751                                         if ($alternate) {
3752                                                 print "<tr class=\"dark\">\n";
3753                                         } else {
3754                                                 print "<tr class=\"light\">\n";
3755                                         }
3756                                         $alternate ^= 1;
3757                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3758                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3759                                               "<td>" .
3760                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3761                                                       -class => "list subject"},
3762                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3763                                         while (my $setref = shift @files) {
3764                                                 my %set = %$setref;
3765                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3766                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3767                                                               -class => "list"},
3768                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3769                                                       "<br/>\n";
3770                                         }
3771                                         print "</td>\n" .
3772                                               "<td class=\"link\">" .
3773                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3774                                               " | " .
3775                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3776                                         print "</td>\n" .
3777                                               "</tr>\n";
3778                                 }
3779                                 %co = parse_commit($1);
3780                         }
3781                 }
3782                 close $fd;
3783         }
3784         print "</table>\n";
3785         git_footer_html();
3786 }
3787
3788 sub git_search_help {
3789         git_header_html();
3790         git_print_page_nav('','', $hash,$hash,$hash);
3791         print <<EOT;
3792 <dl>
3793 <dt><b>commit</b></dt>
3794 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
3795 <dt><b>author</b></dt>
3796 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
3797 <dt><b>committer</b></dt>
3798 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
3799 EOT
3800         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3801         if ($have_pickaxe) {
3802                 print <<EOT;
3803 <dt><b>pickaxe</b></dt>
3804 <dd>All commits that caused the string to appear or disappear from any file (changes that
3805 added, removed or "modified" the string) will be listed. This search can take a while and
3806 takes a lot of strain on the server, so please use it wisely.</dd>
3807 EOT
3808         }
3809         print "</dl>\n";
3810         git_footer_html();
3811 }
3812
3813 sub git_shortlog {
3814         my $head = git_get_head_hash($project);
3815         if (!defined $hash) {
3816                 $hash = $head;
3817         }
3818         if (!defined $page) {
3819                 $page = 0;
3820         }
3821         my $refs = git_get_references();
3822
3823         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3824         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3825                 or die_error(undef, "Open git-rev-list failed");
3826         my @revlist = map { chomp; $_ } <$fd>;
3827         close $fd;
3828
3829         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3830         my $next_link = '';
3831         if ($#revlist >= (100 * ($page+1)-1)) {
3832                 $next_link =
3833                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3834                                  -title => "Alt-n"}, "next");
3835         }
3836
3837
3838         git_header_html();
3839         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3840         git_print_header_div('summary', $project);
3841
3842         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3843
3844         git_footer_html();
3845 }
3846
3847 ## ......................................................................
3848 ## feeds (RSS, OPML)
3849
3850 sub git_rss {
3851         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3852         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
3853                 git_get_head_hash($project), "--"
3854                 or die_error(undef, "Open git-rev-list failed");
3855         my @revlist = map { chomp; $_ } <$fd>;
3856         close $fd or die_error(undef, "Reading git-rev-list failed");
3857         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3858         print <<XML;
3859 <?xml version="1.0" encoding="utf-8"?>
3860 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3861 <channel>
3862 <title>$project $my_uri $my_url</title>
3863 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3864 <description>$project log</description>
3865 <language>en</language>
3866 XML
3867
3868         for (my $i = 0; $i <= $#revlist; $i++) {
3869                 my $commit = $revlist[$i];
3870                 my %co = parse_commit($commit);
3871                 # we read 150, we always show 30 and the ones more recent than 48 hours
3872                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3873                         last;
3874                 }
3875                 my %cd = parse_date($co{'committer_epoch'});
3876                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3877                         $co{'parent'}, $co{'id'}, "--"
3878                         or next;
3879                 my @difftree = map { chomp; $_ } <$fd>;
3880                 close $fd
3881                         or next;
3882                 print "<item>\n" .
3883                       "<title>" .
3884                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3885                       "</title>\n" .
3886                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3887                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3888                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3889                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3890                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3891                       "<content:encoded>" .
3892                       "<![CDATA[\n";
3893                 my $comment = $co{'comment'};
3894                 foreach my $line (@$comment) {
3895                         $line = to_utf8($line);
3896                         print "$line<br/>\n";
3897                 }
3898                 print "<br/>\n";
3899                 foreach my $line (@difftree) {
3900                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3901                                 next;
3902                         }
3903                         my $file = esc_html(unquote($7));
3904                         $file = to_utf8($file);
3905                         print "$file<br/>\n";
3906                 }
3907                 print "]]>\n" .
3908                       "</content:encoded>\n" .
3909                       "</item>\n";
3910         }
3911         print "</channel></rss>";
3912 }
3913
3914 sub git_opml {
3915         my @list = git_get_projects_list();
3916
3917         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3918         print <<XML;
3919 <?xml version="1.0" encoding="utf-8"?>
3920 <opml version="1.0">
3921 <head>
3922   <title>$site_name OPML Export</title>
3923 </head>
3924 <body>
3925 <outline text="git RSS feeds">
3926 XML
3927
3928         foreach my $pr (@list) {
3929                 my %proj = %$pr;
3930                 my $head = git_get_head_hash($proj{'path'});
3931                 if (!defined $head) {
3932                         next;
3933                 }
3934                 $git_dir = "$projectroot/$proj{'path'}";
3935                 my %co = parse_commit($head);
3936                 if (!%co) {
3937                         next;
3938                 }
3939
3940                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3941                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3942                 my $html = "$my_url?p=$proj{'path'};a=summary";
3943                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3944         }
3945         print <<XML;
3946 </outline>
3947 </body>
3948 </opml>
3949 XML
3950 }