Lady’s Gitweb - Gitweb/blob - gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++"
  43                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45 # filename of html text to include at top of each page
  46 our $site_header = "++GITWEB_SITE_HEADER++";
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49 # filename of html text to include at bottom of each page
  50 our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52 # URI of stylesheets
  53 our @stylesheets = ("++GITWEB_CSS++");
  54 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55 our $stylesheet = undef;
  56
  57 # URI of GIT logo (72x27 size)
  58 our $logo = "++GITWEB_LOGO++";
  59 # URI of GIT favicon, assumed to be image/png type
  60 our $favicon = "++GITWEB_FAVICON++";
  61
  62 # URI and label (title) of GIT logo link
  63 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  64 #our $logo_label = "git documentation";
  65 our $logo_url = "http://git.or.cz/";
  66 our $logo_label = "git homepage";
  67
  68 # source of projects list
  69 our $projects_list = "++GITWEB_LIST++";
  70
  71 # show repository only if this file exists
  72 # (only effective if this variable evaluates to true)
  73 our $export_ok = "++GITWEB_EXPORT_OK++";
  74
  75 # only allow viewing of repositories also shown on the overview page
  76 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  77
  78 # list of git base URLs used for URL to where fetch project from,
  79 # i.e. full URL is "$git_base_url/$project"
  80 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  81
  82 # default blob_plain mimetype and default charset for text/plain blob
  83 our $default_blob_plain_mimetype = 'text/plain';
  84 our $default_text_plain_charset  = undef;
  85
  86 # file to use for guessing MIME types before trying /etc/mime.types
  87 # (relative to the current git repository)
  88 our $mimetypes_file = undef;
  89
  90 # You define site-wide feature defaults here; override them with
  91 # $GITWEB_CONFIG as necessary.
  92 our %feature = (
  93         # feature => {
  94         #       'sub' => feature-sub (subroutine),
  95         #       'override' => allow-override (boolean),
  96         #       'default' => [ default options...] (array reference)}
  97         #
  98         # if feature is overridable (it means that allow-override has true value,
  99         # then feature-sub will be called with default options as parameters;
 100         # return value of feature-sub indicates if to enable specified feature
 101         #
 102         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 103
 104         # Enable the 'blame' blob view, showing the last commit that modified
 105         # each line in the file. This can be very CPU-intensive.
 106
 107         # To enable system wide have in $GITWEB_CONFIG
 108         # $feature{'blame'}{'default'} = [1];
 109         # To have project specific config enable override in $GITWEB_CONFIG
 110         # $feature{'blame'}{'override'} = 1;
 111         # and in project config gitweb.blame = 0|1;
 112         'blame' => {
 113                 'sub' => \&feature_blame,
 114                 'override' => 0,
 115                 'default' => [0]},
 116
 117         # Enable the 'snapshot' link, providing a compressed tarball of any
 118         # tree. This can potentially generate high traffic if you have large
 119         # project.
 120
 121         # To disable system wide have in $GITWEB_CONFIG
 122         # $feature{'snapshot'}{'default'} = [undef];
 123         # To have project specific config enable override in $GITWEB_CONFIG
 124         # $feature{'blame'}{'override'} = 1;
 125         # and in project config gitweb.snapshot = none|gzip|bzip2;
 126         'snapshot' => {
 127                 'sub' => \&feature_snapshot,
 128                 'override' => 0,
 129                 #         => [content-encoding, suffix, program]
 130                 'default' => ['x-gzip', 'gz', 'gzip']},
 131
 132         # Enable the pickaxe search, which will list the commits that modified
 133         # a given string in a file. This can be practical and quite faster
 134         # alternative to 'blame', but still potentially CPU-intensive.
 135
 136         # To enable system wide have in $GITWEB_CONFIG
 137         # $feature{'pickaxe'}{'default'} = [1];
 138         # To have project specific config enable override in $GITWEB_CONFIG
 139         # $feature{'pickaxe'}{'override'} = 1;
 140         # and in project config gitweb.pickaxe = 0|1;
 141         'pickaxe' => {
 142                 'sub' => \&feature_pickaxe,
 143                 'override' => 0,
 144                 'default' => [1]},
 145
 146         # Make gitweb use an alternative format of the URLs which can be
 147         # more readable and natural-looking: project name is embedded
 148         # directly in the path and the query string contains other
 149         # auxiliary information. All gitweb installations recognize
 150         # URL in either format; this configures in which formats gitweb
 151         # generates links.
 152
 153         # To enable system wide have in $GITWEB_CONFIG
 154         # $feature{'pathinfo'}{'default'} = [1];
 155         # Project specific override is not supported.
 156
 157         # Note that you will need to change the default location of CSS,
 158         # favicon, logo and possibly other files to an absolute URL. Also,
 159         # if gitweb.cgi serves as your indexfile, you will need to force
 160         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 161         'pathinfo' => {
 162                 'override' => 0,
 163                 'default' => [0]},
 164
 165         # Make gitweb consider projects in project root subdirectories
 166         # to be forks of existing projects. Given project $projname.git,
 167         # projects matching $projname/*.git will not be shown in the main
 168         # projects list, instead a '+' mark will be added to $projname
 169         # there and a 'forks' view will be enabled for the project, listing
 170         # all the forks. This feature is supported only if project list
 171         # is taken from a directory, not file.
 172
 173         # To enable system wide have in $GITWEB_CONFIG
 174         # $feature{'forks'}{'default'} = [1];
 175         # Project specific override is not supported.
 176         'forks' => {
 177                 'override' => 0,
 178                 'default' => [0]},
 179 );
 180
 181 sub gitweb_check_feature {
 182         my ($name) = @_;
 183         return unless exists $feature{$name};
 184         my ($sub, $override, @defaults) = (
 185                 $feature{$name}{'sub'},
 186                 $feature{$name}{'override'},
 187                 @{$feature{$name}{'default'}});
 188         if (!$override) { return @defaults; }
 189         if (!defined $sub) {
 190                 warn "feature $name is not overrideable";
 191                 return @defaults;
 192         }
 193         return $sub->(@defaults);
 194 }
 195
 196 sub feature_blame {
 197         my ($val) = git_get_project_config('blame', '--bool');
 198
 199         if ($val eq 'true') {
 200                 return 1;
 201         } elsif ($val eq 'false') {
 202                 return 0;
 203         }
 204
 205         return $_[0];
 206 }
 207
 208 sub feature_snapshot {
 209         my ($ctype, $suffix, $command) = @_;
 210
 211         my ($val) = git_get_project_config('snapshot');
 212
 213         if ($val eq 'gzip') {
 214                 return ('x-gzip', 'gz', 'gzip');
 215         } elsif ($val eq 'bzip2') {
 216                 return ('x-bzip2', 'bz2', 'bzip2');
 217         } elsif ($val eq 'none') {
 218                 return ();
 219         }
 220
 221         return ($ctype, $suffix, $command);
 222 }
 223
 224 sub gitweb_have_snapshot {
 225         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 226         my $have_snapshot = (defined $ctype && defined $suffix);
 227
 228         return $have_snapshot;
 229 }
 230
 231 sub feature_pickaxe {
 232         my ($val) = git_get_project_config('pickaxe', '--bool');
 233
 234         if ($val eq 'true') {
 235                 return (1);
 236         } elsif ($val eq 'false') {
 237                 return (0);
 238         }
 239
 240         return ($_[0]);
 241 }
 242
 243 # checking HEAD file with -e is fragile if the repository was
 244 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 245 # and then pruned.
 246 sub check_head_link {
 247         my ($dir) = @_;
 248         my $headfile = "$dir/HEAD";
 249         return ((-e $headfile) ||
 250                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 251 }
 252
 253 sub check_export_ok {
 254         my ($dir) = @_;
 255         return (check_head_link($dir) &&
 256                 (!$export_ok || -e "$dir/$export_ok"));
 257 }
 258
 259 # rename detection options for git-diff and git-diff-tree
 260 # - default is '-M', with the cost proportional to
 261 #   (number of removed files) * (number of new files).
 262 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 263 #   (number of changed files + number of removed files) * (number of new files)
 264 # - even more costly is '-C', '--find-copies-harder' with cost
 265 #   (number of files in the original tree) * (number of new files)
 266 # - one might want to include '-B' option, e.g. '-B', '-M'
 267 our @diff_opts = ('-M'); # taken from git_commit
 268
 269 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 270 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 271
 272 # version of the core git binary
 273 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 274
 275 $projects_list ||= $projectroot;
 276
 277 # ======================================================================
 278 # input validation and dispatch
 279 our $action = $cgi->param('a');
 280 if (defined $action) {
 281         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 282                 die_error(undef, "Invalid action parameter");
 283         }
 284 }
 285
 286 # parameters which are pathnames
 287 our $project = $cgi->param('p');
 288 if (defined $project) {
 289         if (!validate_pathname($project) ||
 290             !(-d "$projectroot/$project") ||
 291             !check_head_link("$projectroot/$project") ||
 292             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 293             ($strict_export && !project_in_list($project))) {
 294                 undef $project;
 295                 die_error(undef, "No such project");
 296         }
 297 }
 298
 299 our $file_name = $cgi->param('f');
 300 if (defined $file_name) {
 301         if (!validate_pathname($file_name)) {
 302                 die_error(undef, "Invalid file parameter");
 303         }
 304 }
 305
 306 our $file_parent = $cgi->param('fp');
 307 if (defined $file_parent) {
 308         if (!validate_pathname($file_parent)) {
 309                 die_error(undef, "Invalid file parent parameter");
 310         }
 311 }
 312
 313 # parameters which are refnames
 314 our $hash = $cgi->param('h');
 315 if (defined $hash) {
 316         if (!validate_refname($hash)) {
 317                 die_error(undef, "Invalid hash parameter");
 318         }
 319 }
 320
 321 our $hash_parent = $cgi->param('hp');
 322 if (defined $hash_parent) {
 323         if (!validate_refname($hash_parent)) {
 324                 die_error(undef, "Invalid hash parent parameter");
 325         }
 326 }
 327
 328 our $hash_base = $cgi->param('hb');
 329 if (defined $hash_base) {
 330         if (!validate_refname($hash_base)) {
 331                 die_error(undef, "Invalid hash base parameter");
 332         }
 333 }
 334
 335 our $hash_parent_base = $cgi->param('hpb');
 336 if (defined $hash_parent_base) {
 337         if (!validate_refname($hash_parent_base)) {
 338                 die_error(undef, "Invalid hash parent base parameter");
 339         }
 340 }
 341
 342 # other parameters
 343 our $page = $cgi->param('pg');
 344 if (defined $page) {
 345         if ($page =~ m/[^0-9]/) {
 346                 die_error(undef, "Invalid page parameter");
 347         }
 348 }
 349
 350 our $searchtext = $cgi->param('s');
 351 if (defined $searchtext) {
 352         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 353                 die_error(undef, "Invalid search parameter");
 354         }
 355         $searchtext = quotemeta $searchtext;
 356 }
 357
 358 our $searchtype = $cgi->param('st');
 359 if (defined $searchtype) {
 360         if ($searchtype =~ m/[^a-z]/) {
 361                 die_error(undef, "Invalid searchtype parameter");
 362         }
 363 }
 364
 365 # now read PATH_INFO and use it as alternative to parameters
 366 sub evaluate_path_info {
 367         return if defined $project;
 368         my $path_info = $ENV{"PATH_INFO"};
 369         return if !$path_info;
 370         $path_info =~ s,^/+,,;
 371         return if !$path_info;
 372         # find which part of PATH_INFO is project
 373         $project = $path_info;
 374         $project =~ s,/+$,,;
 375         while ($project && !check_head_link("$projectroot/$project")) {
 376                 $project =~ s,/*[^/]*$,,;
 377         }
 378         # validate project
 379         $project = validate_pathname($project);
 380         if (!$project ||
 381             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 382             ($strict_export && !project_in_list($project))) {
 383                 undef $project;
 384                 return;
 385         }
 386         # do not change any parameters if an action is given using the query string
 387         return if $action;
 388         $path_info =~ s,^$project/*,,;
 389         my ($refname, $pathname) = split(/:/, $path_info, 2);
 390         if (defined $pathname) {
 391                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 392                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 393                 $pathname =~ s,^/+,,;
 394                 if (!$pathname || substr($pathname, -1) eq "/") {
 395                         $action  ||= "tree";
 396                         $pathname =~ s,/$,,;
 397                 } else {
 398                         $action  ||= "blob_plain";
 399                 }
 400                 $hash_base ||= validate_refname($refname);
 401                 $file_name ||= validate_pathname($pathname);
 402         } elsif (defined $refname) {
 403                 # we got "project.git/branch"
 404                 $action ||= "shortlog";
 405                 $hash   ||= validate_refname($refname);
 406         }
 407 }
 408 evaluate_path_info();
 409
 410 # path to the current git repository
 411 our $git_dir;
 412 $git_dir = "$projectroot/$project" if $project;
 413
 414 # dispatch
 415 my %actions = (
 416         "blame" => \&git_blame2,
 417         "blobdiff" => \&git_blobdiff,
 418         "blobdiff_plain" => \&git_blobdiff_plain,
 419         "blob" => \&git_blob,
 420         "blob_plain" => \&git_blob_plain,
 421         "commitdiff" => \&git_commitdiff,
 422         "commitdiff_plain" => \&git_commitdiff_plain,
 423         "commit" => \&git_commit,
 424         "forks" => \&git_forks,
 425         "heads" => \&git_heads,
 426         "history" => \&git_history,
 427         "log" => \&git_log,
 428         "rss" => \&git_rss,
 429         "search" => \&git_search,
 430         "search_help" => \&git_search_help,
 431         "shortlog" => \&git_shortlog,
 432         "summary" => \&git_summary,
 433         "tag" => \&git_tag,
 434         "tags" => \&git_tags,
 435         "tree" => \&git_tree,
 436         "snapshot" => \&git_snapshot,
 437         # those below don't need $project
 438         "opml" => \&git_opml,
 439         "project_list" => \&git_project_list,
 440         "project_index" => \&git_project_index,
 441 );
 442
 443 if (defined $project) {
 444         $action ||= 'summary';
 445 } else {
 446         $action ||= 'project_list';
 447 }
 448 if (!defined($actions{$action})) {
 449         die_error(undef, "Unknown action");
 450 }
 451 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 452     !$project) {
 453         die_error(undef, "Project needed");
 454 }
 455 $actions{$action}->();
 456 exit;
 457
 458 ## ======================================================================
 459 ## action links
 460
 461 sub href(%) {
 462         my %params = @_;
 463         my $href = $my_uri;
 464
 465         # XXX: Warning: If you touch this, check the search form for updating,
 466         # too.
 467
 468         my @mapping = (
 469                 project => "p",
 470                 action => "a",
 471                 file_name => "f",
 472                 file_parent => "fp",
 473                 hash => "h",
 474                 hash_parent => "hp",
 475                 hash_base => "hb",
 476                 hash_parent_base => "hpb",
 477                 page => "pg",
 478                 order => "o",
 479                 searchtext => "s",
 480                 searchtype => "st",
 481         );
 482         my %mapping = @mapping;
 483
 484         $params{'project'} = $project unless exists $params{'project'};
 485
 486         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 487         if ($use_pathinfo) {
 488                 # use PATH_INFO for project name
 489                 $href .= "/$params{'project'}" if defined $params{'project'};
 490                 delete $params{'project'};
 491
 492                 # Summary just uses the project path URL
 493                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 494                         delete $params{'action'};
 495                 }
 496         }
 497
 498         # now encode the parameters explicitly
 499         my @result = ();
 500         for (my $i = 0; $i < @mapping; $i += 2) {
 501                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 502                 if (defined $params{$name}) {
 503                         push @result, $symbol . "=" . esc_param($params{$name});
 504                 }
 505         }
 506         $href .= "?" . join(';', @result) if scalar @result;
 507
 508         return $href;
 509 }
 510
 511
 512 ## ======================================================================
 513 ## validation, quoting/unquoting and escaping
 514
 515 sub validate_pathname {
 516         my $input = shift || return undef;
 517
 518         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 519         # at the beginning, at the end, and between slashes.
 520         # also this catches doubled slashes
 521         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 522                 return undef;
 523         }
 524         # no null characters
 525         if ($input =~ m!\0!) {
 526                 return undef;
 527         }
 528         return $input;
 529 }
 530
 531 sub validate_refname {
 532         my $input = shift || return undef;
 533
 534         # textual hashes are O.K.
 535         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 536                 return $input;
 537         }
 538         # it must be correct pathname
 539         $input = validate_pathname($input)
 540                 or return undef;
 541         # restrictions on ref name according to git-check-ref-format
 542         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 543                 return undef;
 544         }
 545         return $input;
 546 }
 547
 548 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 549 sub to_utf8 {
 550         my $str = shift;
 551         return decode("utf8", $str, Encode::FB_DEFAULT);
 552 }
 553
 554 # quote unsafe chars, but keep the slash, even when it's not
 555 # correct, but quoted slashes look too horrible in bookmarks
 556 sub esc_param {
 557         my $str = shift;
 558         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 559         $str =~ s/\+/%2B/g;
 560         $str =~ s/ /\+/g;
 561         return $str;
 562 }
 563
 564 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 565 sub esc_url {
 566         my $str = shift;
 567         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 568         $str =~ s/\+/%2B/g;
 569         $str =~ s/ /\+/g;
 570         return $str;
 571 }
 572
 573 # replace invalid utf8 character with SUBSTITUTION sequence
 574 sub esc_html ($;%) {
 575         my $str = shift;
 576         my %opts = @_;
 577
 578         $str = to_utf8($str);
 579         $str = escapeHTML($str);
 580         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 581         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 582         if ($opts{'-nbsp'}) {
 583                 $str =~ s/ /&nbsp;/g;
 584         }
 585         return $str;
 586 }
 587
 588 # Make control characterss "printable".
 589 sub quot_cec {
 590         my $cntrl = shift;
 591         my %es = ( # character escape codes, aka escape sequences
 592                    "\t" => '\t',   # tab            (HT)
 593                    "\n" => '\n',   # line feed      (LF)
 594                    "\r" => '\r',   # carrige return (CR)
 595                    "\f" => '\f',   # form feed      (FF)
 596                    "\b" => '\b',   # backspace      (BS)
 597                    "\a" => '\a',   # alarm (bell)   (BEL)
 598                    "\e" => '\e',   # escape         (ESC)
 599                    "\013" => '\v', # vertical tab   (VT)
 600                    "\000" => '\0', # nul character  (NUL)
 601                    );
 602         my $chr = ( (exists $es{$cntrl})
 603                     ? $es{$cntrl}
 604                     : sprintf('\%03o', ord($cntrl)) );
 605         return "<span class=\"cntrl\">$chr</span>";
 606 }
 607
 608 # Alternatively use unicode control pictures codepoints.
 609 sub quot_upr {
 610         my $cntrl = shift;
 611         my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 612         return "<span class=\"cntrl\">$chr</span>";
 613 }
 614
 615 # quote control characters and escape filename to HTML
 616 sub esc_path {
 617         my $str = shift;
 618
 619         $str = esc_html($str);
 620         $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 621         return $str;
 622 }
 623
 624 # git may return quoted and escaped filenames
 625 sub unquote {
 626         my $str = shift;
 627
 628         sub unq {
 629                 my $seq = shift;
 630                 my %es = ( # character escape codes, aka escape sequences
 631                         't' => "\t",   # tab            (HT, TAB)
 632                         'n' => "\n",   # newline        (NL)
 633                         'r' => "\r",   # return         (CR)
 634                         'f' => "\f",   # form feed      (FF)
 635                         'b' => "\b",   # backspace      (BS)
 636                         'a' => "\a",   # alarm (bell)   (BEL)
 637                         'e' => "\e",   # escape         (ESC)
 638                         'v' => "\013", # vertical tab   (VT)
 639                 );
 640
 641                 if ($seq =~ m/^[0-7]{1,3}$/) {
 642                         # octal char sequence
 643                         return chr(oct($seq));
 644                 } elsif (exists $es{$seq}) {
 645                         # C escape sequence, aka character escape code
 646                         return $es{$seq}
 647                 }
 648                 # quoted ordinary character
 649                 return $seq;
 650         }
 651
 652         if ($str =~ m/^"(.*)"$/) {
 653                 # needs unquoting
 654                 $str = $1;
 655                 $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 656         }
 657         return $str;
 658 }
 659
 660 # escape tabs (convert tabs to spaces)
 661 sub untabify {
 662         my $line = shift;
 663
 664         while ((my $pos = index($line, "\t")) != -1) {
 665                 if (my $count = (8 - ($pos % 8))) {
 666                         my $spaces = ' ' x $count;
 667                         $line =~ s/\t/$spaces/;
 668                 }
 669         }
 670
 671         return $line;
 672 }
 673
 674 sub project_in_list {
 675         my $project = shift;
 676         my @list = git_get_projects_list();
 677         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 678 }
 679
 680 ## ----------------------------------------------------------------------
 681 ## HTML aware string manipulation
 682
 683 sub chop_str {
 684         my $str = shift;
 685         my $len = shift;
 686         my $add_len = shift || 10;
 687
 688         # allow only $len chars, but don't cut a word if it would fit in $add_len
 689         # if it doesn't fit, cut it if it's still longer than the dots we would add
 690         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 691         my $body = $1;
 692         my $tail = $2;
 693         if (length($tail) > 4) {
 694                 $tail = " ...";
 695                 $body =~ s/&[^;]*$//; # remove chopped character entities
 696         }
 697         return "$body$tail";
 698 }
 699
 700 ## ----------------------------------------------------------------------
 701 ## functions returning short strings
 702
 703 # CSS class for given age value (in seconds)
 704 sub age_class {
 705         my $age = shift;
 706
 707         if ($age < 60*60*2) {
 708                 return "age0";
 709         } elsif ($age < 60*60*24*2) {
 710                 return "age1";
 711         } else {
 712                 return "age2";
 713         }
 714 }
 715
 716 # convert age in seconds to "nn units ago" string
 717 sub age_string {
 718         my $age = shift;
 719         my $age_str;
 720
 721         if ($age > 60*60*24*365*2) {
 722                 $age_str = (int $age/60/60/24/365);
 723                 $age_str .= " years ago";
 724         } elsif ($age > 60*60*24*(365/12)*2) {
 725                 $age_str = int $age/60/60/24/(365/12);
 726                 $age_str .= " months ago";
 727         } elsif ($age > 60*60*24*7*2) {
 728                 $age_str = int $age/60/60/24/7;
 729                 $age_str .= " weeks ago";
 730         } elsif ($age > 60*60*24*2) {
 731                 $age_str = int $age/60/60/24;
 732                 $age_str .= " days ago";
 733         } elsif ($age > 60*60*2) {
 734                 $age_str = int $age/60/60;
 735                 $age_str .= " hours ago";
 736         } elsif ($age > 60*2) {
 737                 $age_str = int $age/60;
 738                 $age_str .= " min ago";
 739         } elsif ($age > 2) {
 740                 $age_str = int $age;
 741                 $age_str .= " sec ago";
 742         } else {
 743                 $age_str .= " right now";
 744         }
 745         return $age_str;
 746 }
 747
 748 # convert file mode in octal to symbolic file mode string
 749 sub mode_str {
 750         my $mode = oct shift;
 751
 752         if (S_ISDIR($mode & S_IFMT)) {
 753                 return 'drwxr-xr-x';
 754         } elsif (S_ISLNK($mode)) {
 755                 return 'lrwxrwxrwx';
 756         } elsif (S_ISREG($mode)) {
 757                 # git cares only about the executable bit
 758                 if ($mode & S_IXUSR) {
 759                         return '-rwxr-xr-x';
 760                 } else {
 761                         return '-rw-r--r--';
 762                 };
 763         } else {
 764                 return '----------';
 765         }
 766 }
 767
 768 # convert file mode in octal to file type string
 769 sub file_type {
 770         my $mode = shift;
 771
 772         if ($mode !~ m/^[0-7]+$/) {
 773                 return $mode;
 774         } else {
 775                 $mode = oct $mode;
 776         }
 777
 778         if (S_ISDIR($mode & S_IFMT)) {
 779                 return "directory";
 780         } elsif (S_ISLNK($mode)) {
 781                 return "symlink";
 782         } elsif (S_ISREG($mode)) {
 783                 return "file";
 784         } else {
 785                 return "unknown";
 786         }
 787 }
 788
 789 # convert file mode in octal to file type description string
 790 sub file_type_long {
 791         my $mode = shift;
 792
 793         if ($mode !~ m/^[0-7]+$/) {
 794                 return $mode;
 795         } else {
 796                 $mode = oct $mode;
 797         }
 798
 799         if (S_ISDIR($mode & S_IFMT)) {
 800                 return "directory";
 801         } elsif (S_ISLNK($mode)) {
 802                 return "symlink";
 803         } elsif (S_ISREG($mode)) {
 804                 if ($mode & S_IXUSR) {
 805                         return "executable";
 806                 } else {
 807                         return "file";
 808                 };
 809         } else {
 810                 return "unknown";
 811         }
 812 }
 813
 814
 815 ## ----------------------------------------------------------------------
 816 ## functions returning short HTML fragments, or transforming HTML fragments
 817 ## which don't beling to other sections
 818
 819 # format line of commit message or tag comment
 820 sub format_log_line_html {
 821         my $line = shift;
 822
 823         $line = esc_html($line);
 824         $line =~ s/ /&nbsp;/g;
 825         if ($line =~ m/([0-9a-fA-F]{40})/) {
 826                 my $hash_text = $1;
 827                 if (git_get_type($hash_text) eq "commit") {
 828                         my $link =
 829                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 830                                         -class => "text"}, $hash_text);
 831                         $line =~ s/$hash_text/$link/;
 832                 }
 833         }
 834         return $line;
 835 }
 836
 837 # format marker of refs pointing to given object
 838 sub format_ref_marker {
 839         my ($refs, $id) = @_;
 840         my $markers = '';
 841
 842         if (defined $refs->{$id}) {
 843                 foreach my $ref (@{$refs->{$id}}) {
 844                         my ($type, $name) = qw();
 845                         # e.g. tags/v2.6.11 or heads/next
 846                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 847                                 $type = $1;
 848                                 $name = $2;
 849                         } else {
 850                                 $type = "ref";
 851                                 $name = $ref;
 852                         }
 853
 854                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 855                 }
 856         }
 857
 858         if ($markers) {
 859                 return ' <span class="refs">'. $markers . '</span>';
 860         } else {
 861                 return "";
 862         }
 863 }
 864
 865 # format, perhaps shortened and with markers, title line
 866 sub format_subject_html {
 867         my ($long, $short, $href, $extra) = @_;
 868         $extra = '' unless defined($extra);
 869
 870         if (length($short) < length($long)) {
 871                 return $cgi->a({-href => $href, -class => "list subject",
 872                                 -title => to_utf8($long)},
 873                        esc_html($short) . $extra);
 874         } else {
 875                 return $cgi->a({-href => $href, -class => "list subject"},
 876                        esc_html($long)  . $extra);
 877         }
 878 }
 879
 880 sub format_diff_line {
 881         my $line = shift;
 882         my $char = substr($line, 0, 1);
 883         my $diff_class = "";
 884
 885         chomp $line;
 886
 887         if ($char eq '+') {
 888                 $diff_class = " add";
 889         } elsif ($char eq "-") {
 890                 $diff_class = " rem";
 891         } elsif ($char eq "@") {
 892                 $diff_class = " chunk_header";
 893         } elsif ($char eq "\\") {
 894                 $diff_class = " incomplete";
 895         }
 896         $line = untabify($line);
 897         return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 898 }
 899
 900 ## ----------------------------------------------------------------------
 901 ## git utility subroutines, invoking git commands
 902
 903 # returns path to the core git executable and the --git-dir parameter as list
 904 sub git_cmd {
 905         return $GIT, '--git-dir='.$git_dir;
 906 }
 907
 908 # returns path to the core git executable and the --git-dir parameter as string
 909 sub git_cmd_str {
 910         return join(' ', git_cmd());
 911 }
 912
 913 # get HEAD ref of given project as hash
 914 sub git_get_head_hash {
 915         my $project = shift;
 916         my $o_git_dir = $git_dir;
 917         my $retval = undef;
 918         $git_dir = "$projectroot/$project";
 919         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 920                 my $head = <$fd>;
 921                 close $fd;
 922                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 923                         $retval = $1;
 924                 }
 925         }
 926         if (defined $o_git_dir) {
 927                 $git_dir = $o_git_dir;
 928         }
 929         return $retval;
 930 }
 931
 932 # get type of given object
 933 sub git_get_type {
 934         my $hash = shift;
 935
 936         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 937         my $type = <$fd>;
 938         close $fd or return;
 939         chomp $type;
 940         return $type;
 941 }
 942
 943 sub git_get_project_config {
 944         my ($key, $type) = @_;
 945
 946         return unless ($key);
 947         $key =~ s/^gitweb\.//;
 948         return if ($key =~ m/\W/);
 949
 950         my @x = (git_cmd(), 'repo-config');
 951         if (defined $type) { push @x, $type; }
 952         push @x, "--get";
 953         push @x, "gitweb.$key";
 954         my $val = qx(@x);
 955         chomp $val;
 956         return ($val);
 957 }
 958
 959 # get hash of given path at given ref
 960 sub git_get_hash_by_path {
 961         my $base = shift;
 962         my $path = shift || return undef;
 963         my $type = shift;
 964
 965         $path =~ s,/+$,,;
 966
 967         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 968                 or die_error(undef, "Open git-ls-tree failed");
 969         my $line = <$fd>;
 970         close $fd or return undef;
 971
 972         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 973         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 974         if (defined $type && $type ne $2) {
 975                 # type doesn't match
 976                 return undef;
 977         }
 978         return $3;
 979 }
 980
 981 ## ......................................................................
 982 ## git utility functions, directly accessing git repository
 983
 984 sub git_get_project_description {
 985         my $path = shift;
 986
 987         open my $fd, "$projectroot/$path/description" or return undef;
 988         my $descr = <$fd>;
 989         close $fd;
 990         chomp $descr;
 991         return $descr;
 992 }
 993
 994 sub git_get_project_url_list {
 995         my $path = shift;
 996
 997         open my $fd, "$projectroot/$path/cloneurl" or return;
 998         my @git_project_url_list = map { chomp; $_ } <$fd>;
 999         close $fd;
1000
1001         return wantarray ? @git_project_url_list : \@git_project_url_list;
1002 }
1003
1004 sub git_get_projects_list {
1005         my ($filter) = @_;
1006         my @list;
1007
1008         $filter ||= '';
1009         $filter =~ s/\.git$//;
1010
1011         if (-d $projects_list) {
1012                 # search in directory
1013                 my $dir = $projects_list . ($filter ? "/$filter" : '');
1014                 # remove the trailing "/"
1015                 $dir =~ s!/+$!!;
1016                 my $pfxlen = length("$dir");
1017
1018                 my ($check_forks) = gitweb_check_feature('forks');
1019
1020                 File::Find::find({
1021                         follow_fast => 1, # follow symbolic links
1022                         dangling_symlinks => 0, # ignore dangling symlinks, silently
1023                         wanted => sub {
1024                                 # skip project-list toplevel, if we get it.
1025                                 return if (m!^[/.]$!);
1026                                 # only directories can be git repositories
1027                                 return unless (-d $_);
1028
1029                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
1030                                 # we check related file in $projectroot
1031                                 if ($check_forks and $subdir =~ m#/.#) {
1032                                         $File::Find::prune = 1;
1033                                 } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1034                                         push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1035                                         $File::Find::prune = 1;
1036                                 }
1037                         },
1038                 }, "$dir");
1039
1040         } elsif (-f $projects_list) {
1041                 # read from file(url-encoded):
1042                 # 'git%2Fgit.git Linus+Torvalds'
1043                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1044                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1045                 open my ($fd), $projects_list or return;
1046                 while (my $line = <$fd>) {
1047                         chomp $line;
1048                         my ($path, $owner) = split ' ', $line;
1049                         $path = unescape($path);
1050                         $owner = unescape($owner);
1051                         if (!defined $path) {
1052                                 next;
1053                         }
1054                         if ($filter ne '') {
1055                                 # looking for forks;
1056                                 my $pfx = substr($path, 0, length($filter));
1057                                 if ($pfx ne $filter) {
1058                                         next;
1059                                 }
1060                                 my $sfx = substr($path, length($filter));
1061                                 if ($sfx !~ /^\/.*\.git$/) {
1062                                         next;
1063                                 }
1064                         }
1065                         if (check_export_ok("$projectroot/$path")) {
1066                                 my $pr = {
1067                                         path => $path,
1068                                         owner => to_utf8($owner),
1069                                 };
1070                                 push @list, $pr
1071                         }
1072                 }
1073                 close $fd;
1074         }
1075         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1076         return @list;
1077 }
1078
1079 sub git_get_project_owner {
1080         my $project = shift;
1081         my $owner;
1082
1083         return undef unless $project;
1084
1085         # read from file (url-encoded):
1086         # 'git%2Fgit.git Linus+Torvalds'
1087         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1088         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1089         if (-f $projects_list) {
1090                 open (my $fd , $projects_list);
1091                 while (my $line = <$fd>) {
1092                         chomp $line;
1093                         my ($pr, $ow) = split ' ', $line;
1094                         $pr = unescape($pr);
1095                         $ow = unescape($ow);
1096                         if ($pr eq $project) {
1097                                 $owner = to_utf8($ow);
1098                                 last;
1099                         }
1100                 }
1101                 close $fd;
1102         }
1103         if (!defined $owner) {
1104                 $owner = get_file_owner("$projectroot/$project");
1105         }
1106
1107         return $owner;
1108 }
1109
1110 sub git_get_last_activity {
1111         my ($path) = @_;
1112         my $fd;
1113
1114         $git_dir = "$projectroot/$path";
1115         open($fd, "-|", git_cmd(), 'for-each-ref',
1116              '--format=%(refname) %(committer)',
1117              '--sort=-committerdate',
1118              'refs/heads') or return;
1119         my $most_recent = <$fd>;
1120         close $fd or return;
1121         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1122                 my $timestamp = $1;
1123                 my $age = time - $timestamp;
1124                 return ($age, age_string($age));
1125         }
1126 }
1127
1128 sub git_get_references {
1129         my $type = shift || "";
1130         my %refs;
1131         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1132         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1133         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1134                 or return;
1135
1136         while (my $line = <$fd>) {
1137                 chomp $line;
1138                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1139                         if (defined $refs{$1}) {
1140                                 push @{$refs{$1}}, $2;
1141                         } else {
1142                                 $refs{$1} = [ $2 ];
1143                         }
1144                 }
1145         }
1146         close $fd or return;
1147         return \%refs;
1148 }
1149
1150 sub git_get_rev_name_tags {
1151         my $hash = shift || return undef;
1152
1153         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1154                 or return;
1155         my $name_rev = <$fd>;
1156         close $fd;
1157
1158         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1159                 return $1;
1160         } else {
1161                 # catches also '$hash undefined' output
1162                 return undef;
1163         }
1164 }
1165
1166 ## ----------------------------------------------------------------------
1167 ## parse to hash functions
1168
1169 sub parse_date {
1170         my $epoch = shift;
1171         my $tz = shift || "-0000";
1172
1173         my %date;
1174         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1175         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1176         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1177         $date{'hour'} = $hour;
1178         $date{'minute'} = $min;
1179         $date{'mday'} = $mday;
1180         $date{'day'} = $days[$wday];
1181         $date{'month'} = $months[$mon];
1182         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1183                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1184         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1185                              $mday, $months[$mon], $hour ,$min;
1186
1187         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1188         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1189         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1190         $date{'hour_local'} = $hour;
1191         $date{'minute_local'} = $min;
1192         $date{'tz_local'} = $tz;
1193         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1194                                    1900+$year, $mon+1, $mday,
1195                                    $hour, $min, $sec, $tz);
1196         return %date;
1197 }
1198
1199 sub parse_tag {
1200         my $tag_id = shift;
1201         my %tag;
1202         my @comment;
1203
1204         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1205         $tag{'id'} = $tag_id;
1206         while (my $line = <$fd>) {
1207                 chomp $line;
1208                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1209                         $tag{'object'} = $1;
1210                 } elsif ($line =~ m/^type (.+)$/) {
1211                         $tag{'type'} = $1;
1212                 } elsif ($line =~ m/^tag (.+)$/) {
1213                         $tag{'name'} = $1;
1214                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1215                         $tag{'author'} = $1;
1216                         $tag{'epoch'} = $2;
1217                         $tag{'tz'} = $3;
1218                 } elsif ($line =~ m/--BEGIN/) {
1219                         push @comment, $line;
1220                         last;
1221                 } elsif ($line eq "") {
1222                         last;
1223                 }
1224         }
1225         push @comment, <$fd>;
1226         $tag{'comment'} = \@comment;
1227         close $fd or return;
1228         if (!defined $tag{'name'}) {
1229                 return
1230         };
1231         return %tag
1232 }
1233
1234 sub parse_commit {
1235         my $commit_id = shift;
1236         my $commit_text = shift;
1237
1238         my @commit_lines;
1239         my %co;
1240
1241         if (defined $commit_text) {
1242                 @commit_lines = @$commit_text;
1243         } else {
1244                 local $/ = "\0";
1245                 open my $fd, "-|", git_cmd(), "rev-list",
1246                         "--header", "--parents", "--max-count=1",
1247                         $commit_id, "--"
1248                         or return;
1249                 @commit_lines = split '\n', <$fd>;
1250                 close $fd or return;
1251                 pop @commit_lines;
1252         }
1253         my $header = shift @commit_lines;
1254         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1255                 return;
1256         }
1257         ($co{'id'}, my @parents) = split ' ', $header;
1258         $co{'parents'} = \@parents;
1259         $co{'parent'} = $parents[0];
1260         while (my $line = shift @commit_lines) {
1261                 last if $line eq "\n";
1262                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1263                         $co{'tree'} = $1;
1264                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1265                         $co{'author'} = $1;
1266                         $co{'author_epoch'} = $2;
1267                         $co{'author_tz'} = $3;
1268                         if ($co{'author'} =~ m/^([^<]+) </) {
1269                                 $co{'author_name'} = $1;
1270                         } else {
1271                                 $co{'author_name'} = $co{'author'};
1272                         }
1273                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1274                         $co{'committer'} = $1;
1275                         $co{'committer_epoch'} = $2;
1276                         $co{'committer_tz'} = $3;
1277                         $co{'committer_name'} = $co{'committer'};
1278                         $co{'committer_name'} =~ s/ <.*//;
1279                 }
1280         }
1281         if (!defined $co{'tree'}) {
1282                 return;
1283         };
1284
1285         foreach my $title (@commit_lines) {
1286                 $title =~ s/^    //;
1287                 if ($title ne "") {
1288                         $co{'title'} = chop_str($title, 80, 5);
1289                         # remove leading stuff of merges to make the interesting part visible
1290                         if (length($title) > 50) {
1291                                 $title =~ s/^Automatic //;
1292                                 $title =~ s/^merge (of|with) /Merge ... /i;
1293                                 if (length($title) > 50) {
1294                                         $title =~ s/(http|rsync):\/\///;
1295                                 }
1296                                 if (length($title) > 50) {
1297                                         $title =~ s/(master|www|rsync)\.//;
1298                                 }
1299                                 if (length($title) > 50) {
1300                                         $title =~ s/kernel.org:?//;
1301                                 }
1302                                 if (length($title) > 50) {
1303                                         $title =~ s/\/pub\/scm//;
1304                                 }
1305                         }
1306                         $co{'title_short'} = chop_str($title, 50, 5);
1307                         last;
1308                 }
1309         }
1310         if ($co{'title'} eq "") {
1311                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1312         }
1313         # remove added spaces
1314         foreach my $line (@commit_lines) {
1315                 $line =~ s/^    //;
1316         }
1317         $co{'comment'} = \@commit_lines;
1318
1319         my $age = time - $co{'committer_epoch'};
1320         $co{'age'} = $age;
1321         $co{'age_string'} = age_string($age);
1322         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1323         if ($age > 60*60*24*7*2) {
1324                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1325                 $co{'age_string_age'} = $co{'age_string'};
1326         } else {
1327                 $co{'age_string_date'} = $co{'age_string'};
1328                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1329         }
1330         return %co;
1331 }
1332
1333 # parse ref from ref_file, given by ref_id, with given type
1334 sub parse_ref {
1335         my $ref_file = shift;
1336         my $ref_id = shift;
1337         my $type = shift || git_get_type($ref_id);
1338         my %ref_item;
1339
1340         $ref_item{'type'} = $type;
1341         $ref_item{'id'} = $ref_id;
1342         $ref_item{'epoch'} = 0;
1343         $ref_item{'age'} = "unknown";
1344         if ($type eq "tag") {
1345                 my %tag = parse_tag($ref_id);
1346                 $ref_item{'comment'} = $tag{'comment'};
1347                 if ($tag{'type'} eq "commit") {
1348                         my %co = parse_commit($tag{'object'});
1349                         $ref_item{'epoch'} = $co{'committer_epoch'};
1350                         $ref_item{'age'} = $co{'age_string'};
1351                 } elsif (defined($tag{'epoch'})) {
1352                         my $age = time - $tag{'epoch'};
1353                         $ref_item{'epoch'} = $tag{'epoch'};
1354                         $ref_item{'age'} = age_string($age);
1355                 }
1356                 $ref_item{'reftype'} = $tag{'type'};
1357                 $ref_item{'name'} = $tag{'name'};
1358                 $ref_item{'refid'} = $tag{'object'};
1359         } elsif ($type eq "commit"){
1360                 my %co = parse_commit($ref_id);
1361                 $ref_item{'reftype'} = "commit";
1362                 $ref_item{'name'} = $ref_file;
1363                 $ref_item{'title'} = $co{'title'};
1364                 $ref_item{'refid'} = $ref_id;
1365                 $ref_item{'epoch'} = $co{'committer_epoch'};
1366                 $ref_item{'age'} = $co{'age_string'};
1367         } else {
1368                 $ref_item{'reftype'} = $type;
1369                 $ref_item{'name'} = $ref_file;
1370                 $ref_item{'refid'} = $ref_id;
1371         }
1372
1373         return %ref_item;
1374 }
1375
1376 # parse line of git-diff-tree "raw" output
1377 sub parse_difftree_raw_line {
1378         my $line = shift;
1379         my %res;
1380
1381         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1382         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1383         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1384                 $res{'from_mode'} = $1;
1385                 $res{'to_mode'} = $2;
1386                 $res{'from_id'} = $3;
1387                 $res{'to_id'} = $4;
1388                 $res{'status'} = $5;
1389                 $res{'similarity'} = $6;
1390                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1391                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1392                 } else {
1393                         $res{'file'} = unquote($7);
1394                 }
1395         }
1396         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1397         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1398                 $res{'commit'} = $1;
1399         }
1400
1401         return wantarray ? %res : \%res;
1402 }
1403
1404 # parse line of git-ls-tree output
1405 sub parse_ls_tree_line ($;%) {
1406         my $line = shift;
1407         my %opts = @_;
1408         my %res;
1409
1410         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1411         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1412
1413         $res{'mode'} = $1;
1414         $res{'type'} = $2;
1415         $res{'hash'} = $3;
1416         if ($opts{'-z'}) {
1417                 $res{'name'} = $4;
1418         } else {
1419                 $res{'name'} = unquote($4);
1420         }
1421
1422         return wantarray ? %res : \%res;
1423 }
1424
1425 ## ......................................................................
1426 ## parse to array of hashes functions
1427
1428 sub git_get_heads_list {
1429         my $limit = shift;
1430         my @headslist;
1431
1432         open my $fd, '-|', git_cmd(), 'for-each-ref',
1433                 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1434                 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1435                 'refs/heads'
1436                 or return;
1437         while (my $line = <$fd>) {
1438                 my %ref_item;
1439
1440                 chomp $line;
1441                 my ($refinfo, $committerinfo) = split(/\0/, $line);
1442                 my ($hash, $name, $title) = split(' ', $refinfo, 3);
1443                 my ($committer, $epoch, $tz) =
1444                         ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1445                 $name =~ s!^refs/heads/!!;
1446
1447                 $ref_item{'name'}  = $name;
1448                 $ref_item{'id'}    = $hash;
1449                 $ref_item{'title'} = $title || '(no commit message)';
1450                 $ref_item{'epoch'} = $epoch;
1451                 if ($epoch) {
1452                         $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1453                 } else {
1454                         $ref_item{'age'} = "unknown";
1455                 }
1456
1457                 push @headslist, \%ref_item;
1458         }
1459         close $fd;
1460
1461         return wantarray ? @headslist : \@headslist;
1462 }
1463
1464 sub git_get_tags_list {
1465         my $limit = shift;
1466         my @tagslist;
1467
1468         open my $fd, '-|', git_cmd(), 'for-each-ref',
1469                 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1470                 '--format=%(objectname) %(objecttype) %(refname) '.
1471                 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1472                 'refs/tags'
1473                 or return;
1474         while (my $line = <$fd>) {
1475                 my %ref_item;
1476
1477                 chomp $line;
1478                 my ($refinfo, $creatorinfo) = split(/\0/, $line);
1479                 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1480                 my ($creator, $epoch, $tz) =
1481                         ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1482                 $name =~ s!^refs/tags/!!;
1483
1484                 $ref_item{'type'} = $type;
1485                 $ref_item{'id'} = $id;
1486                 $ref_item{'name'} = $name;
1487                 if ($type eq "tag") {
1488                         $ref_item{'subject'} = $title;
1489                         $ref_item{'reftype'} = $reftype;
1490                         $ref_item{'refid'}   = $refid;
1491                 } else {
1492                         $ref_item{'reftype'} = $type;
1493                         $ref_item{'refid'}   = $id;
1494                 }
1495
1496                 if ($type eq "tag" || $type eq "commit") {
1497                         $ref_item{'epoch'} = $epoch;
1498                         if ($epoch) {
1499                                 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1500                         } else {
1501                                 $ref_item{'age'} = "unknown";
1502                         }
1503                 }
1504
1505                 push @tagslist, \%ref_item;
1506         }
1507         close $fd;
1508
1509         return wantarray ? @tagslist : \@tagslist;
1510 }
1511
1512 ## ----------------------------------------------------------------------
1513 ## filesystem-related functions
1514
1515 sub get_file_owner {
1516         my $path = shift;
1517
1518         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1519         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1520         if (!defined $gcos) {
1521                 return undef;
1522         }
1523         my $owner = $gcos;
1524         $owner =~ s/[,;].*$//;
1525         return to_utf8($owner);
1526 }
1527
1528 ## ......................................................................
1529 ## mimetype related functions
1530
1531 sub mimetype_guess_file {
1532         my $filename = shift;
1533         my $mimemap = shift;
1534         -r $mimemap or return undef;
1535
1536         my %mimemap;
1537         open(MIME, $mimemap) or return undef;
1538         while (<MIME>) {
1539                 next if m/^#/; # skip comments
1540                 my ($mime, $exts) = split(/\t+/);
1541                 if (defined $exts) {
1542                         my @exts = split(/\s+/, $exts);
1543                         foreach my $ext (@exts) {
1544                                 $mimemap{$ext} = $mime;
1545                         }
1546                 }
1547         }
1548         close(MIME);
1549
1550         $filename =~ /\.([^.]*)$/;
1551         return $mimemap{$1};
1552 }
1553
1554 sub mimetype_guess {
1555         my $filename = shift;
1556         my $mime;
1557         $filename =~ /\./ or return undef;
1558
1559         if ($mimetypes_file) {
1560                 my $file = $mimetypes_file;
1561                 if ($file !~ m!^/!) { # if it is relative path
1562                         # it is relative to project
1563                         $file = "$projectroot/$project/$file";
1564                 }
1565                 $mime = mimetype_guess_file($filename, $file);
1566         }
1567         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1568         return $mime;
1569 }
1570
1571 sub blob_mimetype {
1572         my $fd = shift;
1573         my $filename = shift;
1574
1575         if ($filename) {
1576                 my $mime = mimetype_guess($filename);
1577                 $mime and return $mime;
1578         }
1579
1580         # just in case
1581         return $default_blob_plain_mimetype unless $fd;
1582
1583         if (-T $fd) {
1584                 return 'text/plain' .
1585                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1586         } elsif (! $filename) {
1587                 return 'application/octet-stream';
1588         } elsif ($filename =~ m/\.png$/i) {
1589                 return 'image/png';
1590         } elsif ($filename =~ m/\.gif$/i) {
1591                 return 'image/gif';
1592         } elsif ($filename =~ m/\.jpe?g$/i) {
1593                 return 'image/jpeg';
1594         } else {
1595                 return 'application/octet-stream';
1596         }
1597 }
1598
1599 ## ======================================================================
1600 ## functions printing HTML: header, footer, error page
1601
1602 sub git_header_html {
1603         my $status = shift || "200 OK";
1604         my $expires = shift;
1605
1606         my $title = "$site_name";
1607         if (defined $project) {
1608                 $title .= " - $project";
1609                 if (defined $action) {
1610                         $title .= "/$action";
1611                         if (defined $file_name) {
1612                                 $title .= " - " . esc_path($file_name);
1613                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1614                                         $title .= "/";
1615                                 }
1616                         }
1617                 }
1618         }
1619         my $content_type;
1620         # require explicit support from the UA if we are to send the page as
1621         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1622         # we have to do this because MSIE sometimes globs '*/*', pretending to
1623         # support xhtml+xml but choking when it gets what it asked for.
1624         if (defined $cgi->http('HTTP_ACCEPT') &&
1625             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1626             $cgi->Accept('application/xhtml+xml') != 0) {
1627                 $content_type = 'application/xhtml+xml';
1628         } else {
1629                 $content_type = 'text/html';
1630         }
1631         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1632                            -status=> $status, -expires => $expires);
1633         print <<EOF;
1634 <?xml version="1.0" encoding="utf-8"?>
1635 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1636 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1637 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1638 <!-- git core binaries version $git_version -->
1639 <head>
1640 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1641 <meta name="generator" content="gitweb/$version git/$git_version"/>
1642 <meta name="robots" content="index, nofollow"/>
1643 <title>$title</title>
1644 EOF
1645 # print out each stylesheet that exist
1646         if (defined $stylesheet) {
1647 #provides backwards capability for those people who define style sheet in a config file
1648                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1649         } else {
1650                 foreach my $stylesheet (@stylesheets) {
1651                         next unless $stylesheet;
1652                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1653                 }
1654         }
1655         if (defined $project) {
1656                 printf('<link rel="alternate" title="%s log" '.
1657                        'href="%s" type="application/rss+xml"/>'."\n",
1658                        esc_param($project), href(action=>"rss"));
1659         } else {
1660                 printf('<link rel="alternate" title="%s projects list" '.
1661                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1662                        $site_name, href(project=>undef, action=>"project_index"));
1663                 printf('<link rel="alternate" title="%s projects logs" '.
1664                        'href="%s" type="text/x-opml"/>'."\n",
1665                        $site_name, href(project=>undef, action=>"opml"));
1666         }
1667         if (defined $favicon) {
1668                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1669         }
1670
1671         print "</head>\n" .
1672               "<body>\n";
1673
1674         if (-f $site_header) {
1675                 open (my $fd, $site_header);
1676                 print <$fd>;
1677                 close $fd;
1678         }
1679
1680         print "<div class=\"page_header\">\n" .
1681               $cgi->a({-href => esc_url($logo_url),
1682                        -title => $logo_label},
1683                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1684         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1685         if (defined $project) {
1686                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1687                 if (defined $action) {
1688                         print " / $action";
1689                 }
1690                 print "\n";
1691                 if (!defined $searchtext) {
1692                         $searchtext = "";
1693                 }
1694                 my $search_hash;
1695                 if (defined $hash_base) {
1696                         $search_hash = $hash_base;
1697                 } elsif (defined $hash) {
1698                         $search_hash = $hash;
1699                 } else {
1700                         $search_hash = "HEAD";
1701                 }
1702                 $cgi->param("a", "search");
1703                 $cgi->param("h", $search_hash);
1704                 $cgi->param("p", $project);
1705                 print $cgi->startform(-method => "get", -action => $my_uri) .
1706                       "<div class=\"search\">\n" .
1707                       $cgi->hidden(-name => "p") . "\n" .
1708                       $cgi->hidden(-name => "a") . "\n" .
1709                       $cgi->hidden(-name => "h") . "\n" .
1710                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1711                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1712                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1713                       " search:\n",
1714                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1715                       "</div>" .
1716                       $cgi->end_form() . "\n";
1717         }
1718         print "</div>\n";
1719 }
1720
1721 sub git_footer_html {
1722         print "<div class=\"page_footer\">\n";
1723         if (defined $project) {
1724                 my $descr = git_get_project_description($project);
1725                 if (defined $descr) {
1726                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1727                 }
1728                 print $cgi->a({-href => href(action=>"rss"),
1729                               -class => "rss_logo"}, "RSS") . "\n";
1730         } else {
1731                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1732                               -class => "rss_logo"}, "OPML") . " ";
1733                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1734                               -class => "rss_logo"}, "TXT") . "\n";
1735         }
1736         print "</div>\n" ;
1737
1738         if (-f $site_footer) {
1739                 open (my $fd, $site_footer);
1740                 print <$fd>;
1741                 close $fd;
1742         }
1743
1744         print "</body>\n" .
1745               "</html>";
1746 }
1747
1748 sub die_error {
1749         my $status = shift || "403 Forbidden";
1750         my $error = shift || "Malformed query, file missing or permission denied";
1751
1752         git_header_html($status);
1753         print <<EOF;
1754 <div class="page_body">
1755 <br /><br />
1756 $status - $error
1757 <br />
1758 </div>
1759 EOF
1760         git_footer_html();
1761         exit;
1762 }
1763
1764 ## ----------------------------------------------------------------------
1765 ## functions printing or outputting HTML: navigation
1766
1767 sub git_print_page_nav {
1768         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1769         $extra = '' if !defined $extra; # pager or formats
1770
1771         my @navs = qw(summary shortlog log commit commitdiff tree);
1772         if ($suppress) {
1773                 @navs = grep { $_ ne $suppress } @navs;
1774         }
1775
1776         my %arg = map { $_ => {action=>$_} } @navs;
1777         if (defined $head) {
1778                 for (qw(commit commitdiff)) {
1779                         $arg{$_}{hash} = $head;
1780                 }
1781                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1782                         for (qw(shortlog log)) {
1783                                 $arg{$_}{hash} = $head;
1784                         }
1785                 }
1786         }
1787         $arg{tree}{hash} = $treehead if defined $treehead;
1788         $arg{tree}{hash_base} = $treebase if defined $treebase;
1789
1790         print "<div class=\"page_nav\">\n" .
1791                 (join " | ",
1792                  map { $_ eq $current ?
1793                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1794                  } @navs);
1795         print "<br/>\n$extra<br/>\n" .
1796               "</div>\n";
1797 }
1798
1799 sub format_paging_nav {
1800         my ($action, $hash, $head, $page, $nrevs) = @_;
1801         my $paging_nav;
1802
1803
1804         if ($hash ne $head || $page) {
1805                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1806         } else {
1807                 $paging_nav .= "HEAD";
1808         }
1809
1810         if ($page > 0) {
1811                 $paging_nav .= " &sdot; " .
1812                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1813                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1814         } else {
1815                 $paging_nav .= " &sdot; prev";
1816         }
1817
1818         if ($nrevs >= (100 * ($page+1)-1)) {
1819                 $paging_nav .= " &sdot; " .
1820                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1821                                  -accesskey => "n", -title => "Alt-n"}, "next");
1822         } else {
1823                 $paging_nav .= " &sdot; next";
1824         }
1825
1826         return $paging_nav;
1827 }
1828
1829 ## ......................................................................
1830 ## functions printing or outputting HTML: div
1831
1832 sub git_print_header_div {
1833         my ($action, $title, $hash, $hash_base) = @_;
1834         my %args = ();
1835
1836         $args{action} = $action;
1837         $args{hash} = $hash if $hash;
1838         $args{hash_base} = $hash_base if $hash_base;
1839
1840         print "<div class=\"header\">\n" .
1841               $cgi->a({-href => href(%args), -class => "title"},
1842               $title ? $title : $action) .
1843               "\n</div>\n";
1844 }
1845
1846 #sub git_print_authorship (\%) {
1847 sub git_print_authorship {
1848         my $co = shift;
1849
1850         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1851         print "<div class=\"author_date\">" .
1852               esc_html($co->{'author_name'}) .
1853               " [$ad{'rfc2822'}";
1854         if ($ad{'hour_local'} < 6) {
1855                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1856                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1857         } else {
1858                 printf(" (%02d:%02d %s)",
1859                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1860         }
1861         print "]</div>\n";
1862 }
1863
1864 sub git_print_page_path {
1865         my $name = shift;
1866         my $type = shift;
1867         my $hb = shift;
1868
1869
1870         print "<div class=\"page_path\">";
1871         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1872                       -title => 'tree root'}, "[$project]");
1873         print " / ";
1874         if (defined $name) {
1875                 my @dirname = split '/', $name;
1876                 my $basename = pop @dirname;
1877                 my $fullname = '';
1878
1879                 foreach my $dir (@dirname) {
1880                         $fullname .= ($fullname ? '/' : '') . $dir;
1881                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1882                                                      hash_base=>$hb),
1883                                       -title => $fullname}, esc_path($dir));
1884                         print " / ";
1885                 }
1886                 if (defined $type && $type eq 'blob') {
1887                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1888                                                      hash_base=>$hb),
1889                                       -title => $name}, esc_path($basename));
1890                 } elsif (defined $type && $type eq 'tree') {
1891                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1892                                                      hash_base=>$hb),
1893                                       -title => $name}, esc_path($basename));
1894                         print " / ";
1895                 } else {
1896                         print esc_path($basename);
1897                 }
1898         }
1899         print "<br/></div>\n";
1900 }
1901
1902 # sub git_print_log (\@;%) {
1903 sub git_print_log ($;%) {
1904         my $log = shift;
1905         my %opts = @_;
1906
1907         if ($opts{'-remove_title'}) {
1908                 # remove title, i.e. first line of log
1909                 shift @$log;
1910         }
1911         # remove leading empty lines
1912         while (defined $log->[0] && $log->[0] eq "") {
1913                 shift @$log;
1914         }
1915
1916         # print log
1917         my $signoff = 0;
1918         my $empty = 0;
1919         foreach my $line (@$log) {
1920                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1921                         $signoff = 1;
1922                         $empty = 0;
1923                         if (! $opts{'-remove_signoff'}) {
1924                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1925                                 next;
1926                         } else {
1927                                 # remove signoff lines
1928                                 next;
1929                         }
1930                 } else {
1931                         $signoff = 0;
1932                 }
1933
1934                 # print only one empty line
1935                 # do not print empty line after signoff
1936                 if ($line eq "") {
1937                         next if ($empty || $signoff);
1938                         $empty = 1;
1939                 } else {
1940                         $empty = 0;
1941                 }
1942
1943                 print format_log_line_html($line) . "<br/>\n";
1944         }
1945
1946         if ($opts{'-final_empty_line'}) {
1947                 # end with single empty line
1948                 print "<br/>\n" unless $empty;
1949         }
1950 }
1951
1952 # print tree entry (row of git_tree), but without encompassing <tr> element
1953 sub git_print_tree_entry {
1954         my ($t, $basedir, $hash_base, $have_blame) = @_;
1955
1956         my %base_key = ();
1957         $base_key{hash_base} = $hash_base if defined $hash_base;
1958
1959         # The format of a table row is: mode list link.  Where mode is
1960         # the mode of the entry, list is the name of the entry, an href,
1961         # and link is the action links of the entry.
1962
1963         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1964         if ($t->{'type'} eq "blob") {
1965                 print "<td class=\"list\">" .
1966                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1967                                                file_name=>"$basedir$t->{'name'}", %base_key),
1968                                 -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
1969                 print "<td class=\"link\">";
1970                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1971                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1972                               "blob");
1973                 if ($have_blame) {
1974                         print " | " .
1975                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1976                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1977                                             "blame");
1978                 }
1979                 if (defined $hash_base) {
1980                         print " | " .
1981                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1982                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1983                                       "history");
1984                 }
1985                 print " | " .
1986                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1987                                                file_name=>"$basedir$t->{'name'}")},
1988                                 "raw");
1989                 print "</td>\n";
1990
1991         } elsif ($t->{'type'} eq "tree") {
1992                 print "<td class=\"list\">";
1993                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1994                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1995                               esc_path($t->{'name'}));
1996                 print "</td>\n";
1997                 print "<td class=\"link\">";
1998                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1999                                              file_name=>"$basedir$t->{'name'}", %base_key)},
2000                               "tree");
2001                 if (defined $hash_base) {
2002                         print " | " .
2003                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2004                                                      file_name=>"$basedir$t->{'name'}")},
2005                                       "history");
2006                 }
2007                 print "</td>\n";
2008         }
2009 }
2010
2011 ## ......................................................................
2012 ## functions printing large fragments of HTML
2013
2014 sub git_difftree_body {
2015         my ($difftree, $hash, $parent) = @_;
2016
2017         print "<div class=\"list_head\">\n";
2018         if ($#{$difftree} > 10) {
2019                 print(($#{$difftree} + 1) . " files changed:\n");
2020         }
2021         print "</div>\n";
2022
2023         print "<table class=\"diff_tree\">\n";
2024         my $alternate = 1;
2025         my $patchno = 0;
2026         foreach my $line (@{$difftree}) {
2027                 my %diff = parse_difftree_raw_line($line);
2028
2029                 if ($alternate) {
2030                         print "<tr class=\"dark\">\n";
2031                 } else {
2032                         print "<tr class=\"light\">\n";
2033                 }
2034                 $alternate ^= 1;
2035
2036                 my ($to_mode_oct, $to_mode_str, $to_file_type);
2037                 my ($from_mode_oct, $from_mode_str, $from_file_type);
2038                 if ($diff{'to_mode'} ne ('0' x 6)) {
2039                         $to_mode_oct = oct $diff{'to_mode'};
2040                         if (S_ISREG($to_mode_oct)) { # only for regular file
2041                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2042                         }
2043                         $to_file_type = file_type($diff{'to_mode'});
2044                 }
2045                 if ($diff{'from_mode'} ne ('0' x 6)) {
2046                         $from_mode_oct = oct $diff{'from_mode'};
2047                         if (S_ISREG($to_mode_oct)) { # only for regular file
2048                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2049                         }
2050                         $from_file_type = file_type($diff{'from_mode'});
2051                 }
2052
2053                 if ($diff{'status'} eq "A") { # created
2054                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2055                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2056                         $mode_chng   .= "]</span>";
2057                         print "<td>";
2058                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2059                                                      hash_base=>$hash, file_name=>$diff{'file'}),
2060                                       -class => "list"}, esc_path($diff{'file'}));
2061                         print "</td>\n";
2062                         print "<td>$mode_chng</td>\n";
2063                         print "<td class=\"link\">";
2064                         if ($action eq 'commitdiff') {
2065                                 # link to patch
2066                                 $patchno++;
2067                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
2068                         }
2069                         print "</td>\n";
2070
2071                 } elsif ($diff{'status'} eq "D") { # deleted
2072                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2073                         print "<td>";
2074                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2075                                                      hash_base=>$parent, file_name=>$diff{'file'}),
2076                                        -class => "list"}, esc_path($diff{'file'}));
2077                         print "</td>\n";
2078                         print "<td>$mode_chng</td>\n";
2079                         print "<td class=\"link\">";
2080                         if ($action eq 'commitdiff') {
2081                                 # link to patch
2082                                 $patchno++;
2083                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
2084                                 print " | ";
2085                         }
2086                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2087                                                      hash_base=>$parent, file_name=>$diff{'file'})},
2088                                       "blob") . " | ";
2089                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2090                                                      file_name=>$diff{'file'})},
2091                                       "blame") . " | ";
2092                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2093                                                      file_name=>$diff{'file'})},
2094                                       "history");
2095                         print "</td>\n";
2096
2097                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2098                         my $mode_chnge = "";
2099                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2100                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2101                                 if ($from_file_type != $to_file_type) {
2102                                         $mode_chnge .= " from $from_file_type to $to_file_type";
2103                                 }
2104                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2105                                         if ($from_mode_str && $to_mode_str) {
2106                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2107                                         } elsif ($to_mode_str) {
2108                                                 $mode_chnge .= " mode: $to_mode_str";
2109                                         }
2110                                 }
2111                                 $mode_chnge .= "]</span>\n";
2112                         }
2113                         print "<td>";
2114                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2115                                                      hash_base=>$hash, file_name=>$diff{'file'}),
2116                                       -class => "list"}, esc_path($diff{'file'}));
2117                         print "</td>\n";
2118                         print "<td>$mode_chnge</td>\n";
2119                         print "<td class=\"link\">";
2120                         if ($action eq 'commitdiff') {
2121                                 # link to patch
2122                                 $patchno++;
2123                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2124                                       " | ";
2125                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2126                                 # "commit" view and modified file (not onlu mode changed)
2127                                 print $cgi->a({-href => href(action=>"blobdiff",
2128                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2129                                                              hash_base=>$hash, hash_parent_base=>$parent,
2130                                                              file_name=>$diff{'file'})},
2131                                               "diff") .
2132                                       " | ";
2133                         }
2134                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2135                                                      hash_base=>$hash, file_name=>$diff{'file'})},
2136                                       "blob") . " | ";
2137                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2138                                                      file_name=>$diff{'file'})},
2139                                       "blame") . " | ";
2140                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2141                                                      file_name=>$diff{'file'})},
2142                                       "history");
2143                         print "</td>\n";
2144
2145                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2146                         my %status_name = ('R' => 'moved', 'C' => 'copied');
2147                         my $nstatus = $status_name{$diff{'status'}};
2148                         my $mode_chng = "";
2149                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
2150                                 # mode also for directories, so we cannot use $to_mode_str
2151                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2152                         }
2153                         print "<td>" .
2154                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2155                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2156                                       -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2157                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2158                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2159                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2160                                       -class => "list"}, esc_path($diff{'from_file'})) .
2161                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2162                               "<td class=\"link\">";
2163                         if ($action eq 'commitdiff') {
2164                                 # link to patch
2165                                 $patchno++;
2166                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
2167                                       " | ";
2168                         } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2169                                 # "commit" view and modified file (not only pure rename or copy)
2170                                 print $cgi->a({-href => href(action=>"blobdiff",
2171                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2172                                                              hash_base=>$hash, hash_parent_base=>$parent,
2173                                                              file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2174                                               "diff") .
2175                                       " | ";
2176                         }
2177                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2178                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2179                                       "blob") . " | ";
2180                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2181                                                      file_name=>$diff{'from_file'})},
2182                                       "blame") . " | ";
2183                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2184                                                     file_name=>$diff{'from_file'})},
2185                                       "history");
2186                         print "</td>\n";
2187
2188                 } # we should not encounter Unmerged (U) or Unknown (X) status
2189                 print "</tr>\n";
2190         }
2191         print "</table>\n";
2192 }
2193
2194 sub git_patchset_body {
2195         my ($fd, $difftree, $hash, $hash_parent) = @_;
2196
2197         my $patch_idx = 0;
2198         my $in_header = 0;
2199         my $patch_found = 0;
2200         my $diffinfo;
2201         my (%from, %to);
2202
2203         print "<div class=\"patchset\">\n";
2204
2205         LINE:
2206         while (my $patch_line = <$fd>) {
2207                 chomp $patch_line;
2208
2209                 if ($patch_line =~ m/^diff /) { # "git diff" header
2210                         # beginning of patch (in patchset)
2211                         if ($patch_found) {
2212                                 # close extended header for previous empty patch
2213                                 if ($in_header) {
2214                                         print "</div>\n" # class="diff extended_header"
2215                                 }
2216                                 # close previous patch
2217                                 print "</div>\n"; # class="patch"
2218                         } else {
2219                                 # first patch in patchset
2220                                 $patch_found = 1;
2221                         }
2222                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2223
2224                         # read and prepare patch information
2225                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2226                                 # pre-parsed (or generated by hand)
2227                                 $diffinfo = $difftree->[$patch_idx];
2228                         } else {
2229                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2230                         }
2231                         $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2232                         $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2233                         if ($diffinfo->{'status'} ne "A") { # not new (added) file
2234                                 $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2235                                                      hash=>$diffinfo->{'from_id'},
2236                                                      file_name=>$from{'file'});
2237                         }
2238                         if ($diffinfo->{'status'} ne "D") { # not deleted file
2239                                 $to{'href'} = href(action=>"blob", hash_base=>$hash,
2240                                                    hash=>$diffinfo->{'to_id'},
2241                                                    file_name=>$to{'file'});
2242                         }
2243                         $patch_idx++;
2244
2245                         # print "git diff" header
2246                         $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2247                         if ($from{'href'}) {
2248                                 $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2249                                                        'a/' . esc_path($from{'file'}));
2250                         } else { # file was added
2251                                 $patch_line .= 'a/' . esc_path($from{'file'});
2252                         }
2253                         $patch_line .= ' ';
2254                         if ($to{'href'}) {
2255                                 $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2256                                                        'b/' . esc_path($to{'file'}));
2257                         } else { # file was deleted
2258                                 $patch_line .= 'b/' . esc_path($to{'file'});
2259                         }
2260
2261                         print "<div class=\"diff header\">$patch_line</div>\n";
2262                         print "<div class=\"diff extended_header\">\n";
2263                         $in_header = 1;
2264                         next LINE;
2265                 }
2266
2267                 if ($in_header) {
2268                         if ($patch_line !~ m/^---/) {
2269                                 # match <path>
2270                                 if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2271                                         $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2272                                                                 esc_path($from{'file'}));
2273                                 }
2274                                 if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2275                                         $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2276                                                               esc_path($to{'file'}));
2277                                 }
2278                                 # match <mode>
2279                                 if ($patch_line =~ m/\s(\d{6})$/) {
2280                                         $patch_line .= '<span class="info"> (' .
2281                                                        file_type_long($1) .
2282                                                        ')</span>';
2283                                 }
2284                                 # match <hash>
2285                                 if ($patch_line =~ m/^index/) {
2286                                         my ($from_link, $to_link);
2287                                         if ($from{'href'}) {
2288                                                 $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2289                                                                      substr($diffinfo->{'from_id'},0,7));
2290                                         } else {
2291                                                 $from_link = '0' x 7;
2292                                         }
2293                                         if ($to{'href'}) {
2294                                                 $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2295                                                                    substr($diffinfo->{'to_id'},0,7));
2296                                         } else {
2297                                                 $to_link = '0' x 7;
2298                                         }
2299                                         my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2300                                         $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2301                                 }
2302                                 print $patch_line . "<br/>\n";
2303
2304                         } else {
2305                                 #$in_header && $patch_line =~ m/^---/;
2306                                 print "</div>\n"; # class="diff extended_header"
2307                                 $in_header = 0;
2308
2309                                 if ($from{'href'}) {
2310                                         $patch_line = '--- a/' .
2311                                                       $cgi->a({-href=>$from{'href'}, -class=>"path"},
2312                                                               esc_path($from{'file'}));
2313                                 }
2314                                 print "<div class=\"diff from_file\">$patch_line</div>\n";
2315
2316                                 $patch_line = <$fd>;
2317                                 chomp $patch_line;
2318
2319                                 #$patch_line =~ m/^+++/;
2320                                 if ($to{'href'}) {
2321                                         $patch_line = '+++ b/' .
2322                                                       $cgi->a({-href=>$to{'href'}, -class=>"path"},
2323                                                               esc_path($to{'file'}));
2324                                 }
2325                                 print "<div class=\"diff to_file\">$patch_line</div>\n";
2326
2327                         }
2328
2329                         next LINE;
2330                 }
2331
2332                 print format_diff_line($patch_line);
2333         }
2334         print "</div>\n" if $patch_found; # class="patch"
2335
2336         print "</div>\n"; # class="patchset"
2337 }
2338
2339 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2340
2341 sub git_project_list_body {
2342         my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2343
2344         my ($check_forks) = gitweb_check_feature('forks');
2345
2346         my @projects;
2347         foreach my $pr (@$projlist) {
2348                 my (@aa) = git_get_last_activity($pr->{'path'});
2349                 unless (@aa) {
2350                         next;
2351                 }
2352                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2353                 if (!defined $pr->{'descr'}) {
2354                         my $descr = git_get_project_description($pr->{'path'}) || "";
2355                         $pr->{'descr'} = chop_str($descr, 25, 5);
2356                 }
2357                 if (!defined $pr->{'owner'}) {
2358                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2359                 }
2360                 if ($check_forks) {
2361                         my $pname = $pr->{'path'};
2362                         if (($pname =~ s/\.git$//) &&
2363                             ($pname !~ /\/$/) &&
2364                             (-d "$projectroot/$pname")) {
2365                                 $pr->{'forks'} = "-d $projectroot/$pname";
2366                         }
2367                         else {
2368                                 $pr->{'forks'} = 0;
2369                         }
2370                 }
2371                 push @projects, $pr;
2372         }
2373
2374         $order ||= "project";
2375         $from = 0 unless defined $from;
2376         $to = $#projects if (!defined $to || $#projects < $to);
2377
2378         print "<table class=\"project_list\">\n";
2379         unless ($no_header) {
2380                 print "<tr>\n";
2381                 if ($check_forks) {
2382                         print "<th></th>\n";
2383                 }
2384                 if ($order eq "project") {
2385                         @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2386                         print "<th>Project</th>\n";
2387                 } else {
2388                         print "<th>" .
2389                               $cgi->a({-href => href(project=>undef, order=>'project'),
2390                                        -class => "header"}, "Project") .
2391                               "</th>\n";
2392                 }
2393                 if ($order eq "descr") {
2394                         @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2395                         print "<th>Description</th>\n";
2396                 } else {
2397                         print "<th>" .
2398                               $cgi->a({-href => href(project=>undef, order=>'descr'),
2399                                        -class => "header"}, "Description") .
2400                               "</th>\n";
2401                 }
2402                 if ($order eq "owner") {
2403                         @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2404                         print "<th>Owner</th>\n";
2405                 } else {
2406                         print "<th>" .
2407                               $cgi->a({-href => href(project=>undef, order=>'owner'),
2408                                        -class => "header"}, "Owner") .
2409                               "</th>\n";
2410                 }
2411                 if ($order eq "age") {
2412                         @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2413                         print "<th>Last Change</th>\n";
2414                 } else {
2415                         print "<th>" .
2416                               $cgi->a({-href => href(project=>undef, order=>'age'),
2417                                        -class => "header"}, "Last Change") .
2418                               "</th>\n";
2419                 }
2420                 print "<th></th>\n" .
2421                       "</tr>\n";
2422         }
2423         my $alternate = 1;
2424         for (my $i = $from; $i <= $to; $i++) {
2425                 my $pr = $projects[$i];
2426                 if ($alternate) {
2427                         print "<tr class=\"dark\">\n";
2428                 } else {
2429                         print "<tr class=\"light\">\n";
2430                 }
2431                 $alternate ^= 1;
2432                 if ($check_forks) {
2433                         print "<td>";
2434                         if ($pr->{'forks'}) {
2435                                 print "<!-- $pr->{'forks'} -->\n";
2436                                 print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2437                         }
2438                         print "</td>\n";
2439                 }
2440                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2441                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2442                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2443                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2444                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2445                       $pr->{'age_string'} . "</td>\n" .
2446                       "<td class=\"link\">" .
2447                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2448                       $cgi->a({-href => '/git-browser/by-commit.html?r='.$pr->{'path'}}, "graphiclog") . " | " .
2449                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2450                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2451                       ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2452                       "</td>\n" .
2453                       "</tr>\n";
2454         }
2455         if (defined $extra) {
2456                 print "<tr>\n";
2457                 if ($check_forks) {
2458                         print "<td></td>\n";
2459                 }
2460                 print "<td colspan=\"5\">$extra</td>\n" .
2461                       "</tr>\n";
2462         }
2463         print "</table>\n";
2464 }
2465
2466 sub git_shortlog_body {
2467         # uses global variable $project
2468         my ($revlist, $from, $to, $refs, $extra) = @_;
2469
2470         $from = 0 unless defined $from;
2471         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2472
2473         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2474         my $alternate = 1;
2475         for (my $i = $from; $i <= $to; $i++) {
2476                 my $commit = $revlist->[$i];
2477                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2478                 my $ref = format_ref_marker($refs, $commit);
2479                 my %co = parse_commit($commit);
2480                 if ($alternate) {
2481                         print "<tr class=\"dark\">\n";
2482                 } else {
2483                         print "<tr class=\"light\">\n";
2484                 }
2485                 $alternate ^= 1;
2486                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2487                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2488                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2489                       "<td>";
2490                 print format_subject_html($co{'title'}, $co{'title_short'},
2491                                           href(action=>"commit", hash=>$commit), $ref);
2492                 print "</td>\n" .
2493                       "<td class=\"link\">" .
2494                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2495                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2496                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2497                 if (gitweb_have_snapshot()) {
2498                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2499                 }
2500                 print "</td>\n" .
2501                       "</tr>\n";
2502         }
2503         if (defined $extra) {
2504                 print "<tr>\n" .
2505                       "<td colspan=\"4\">$extra</td>\n" .
2506                       "</tr>\n";
2507         }
2508         print "</table>\n";
2509 }
2510
2511 sub git_history_body {
2512         # Warning: assumes constant type (blob or tree) during history
2513         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2514
2515         $from = 0 unless defined $from;
2516         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2517
2518         print "<table class=\"history\" cellspacing=\"0\">\n";
2519         my $alternate = 1;
2520         for (my $i = $from; $i <= $to; $i++) {
2521                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2522                         next;
2523                 }
2524
2525                 my $commit = $1;
2526                 my %co = parse_commit($commit);
2527                 if (!%co) {
2528                         next;
2529                 }
2530
2531                 my $ref = format_ref_marker($refs, $commit);
2532
2533                 if ($alternate) {
2534                         print "<tr class=\"dark\">\n";
2535                 } else {
2536                         print "<tr class=\"light\">\n";
2537                 }
2538                 $alternate ^= 1;
2539                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2540                       # shortlog uses      chop_str($co{'author_name'}, 10)
2541                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2542                       "<td>";
2543                 # originally git_history used chop_str($co{'title'}, 50)
2544                 print format_subject_html($co{'title'}, $co{'title_short'},
2545                                           href(action=>"commit", hash=>$commit), $ref);
2546                 print "</td>\n" .
2547                       "<td class=\"link\">" .
2548                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2549                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2550
2551                 if ($ftype eq 'blob') {
2552                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2553                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2554                         if (defined $blob_current && defined $blob_parent &&
2555                                         $blob_current ne $blob_parent) {
2556                                 print " | " .
2557                                         $cgi->a({-href => href(action=>"blobdiff",
2558                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2559                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2560                                                                file_name=>$file_name)},
2561                                                 "diff to current");
2562                         }
2563                 }
2564                 print "</td>\n" .
2565                       "</tr>\n";
2566         }
2567         if (defined $extra) {
2568                 print "<tr>\n" .
2569                       "<td colspan=\"4\">$extra</td>\n" .
2570                       "</tr>\n";
2571         }
2572         print "</table>\n";
2573 }
2574
2575 sub git_tags_body {
2576         # uses global variable $project
2577         my ($taglist, $from, $to, $extra) = @_;
2578         $from = 0 unless defined $from;
2579         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2580
2581         print "<table class=\"tags\" cellspacing=\"0\">\n";
2582         my $alternate = 1;
2583         for (my $i = $from; $i <= $to; $i++) {
2584                 my $entry = $taglist->[$i];
2585                 my %tag = %$entry;
2586                 my $comment = $tag{'subject'};
2587                 my $comment_short;
2588                 if (defined $comment) {
2589                         $comment_short = chop_str($comment, 30, 5);
2590                 }
2591                 if ($alternate) {
2592                         print "<tr class=\"dark\">\n";
2593                 } else {
2594                         print "<tr class=\"light\">\n";
2595                 }
2596                 $alternate ^= 1;
2597                 print "<td><i>$tag{'age'}</i></td>\n" .
2598                       "<td>" .
2599                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2600                                -class => "list name"}, esc_html($tag{'name'})) .
2601                       "</td>\n" .
2602                       "<td>";
2603                 if (defined $comment) {
2604                         print format_subject_html($comment, $comment_short,
2605                                                   href(action=>"tag", hash=>$tag{'id'}));
2606                 }
2607                 print "</td>\n" .
2608                       "<td class=\"selflink\">";
2609                 if ($tag{'type'} eq "tag") {
2610                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2611                 } else {
2612                         print "&nbsp;";
2613                 }
2614                 print "</td>\n" .
2615                       "<td class=\"link\">" . " | " .
2616                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2617                 if ($tag{'reftype'} eq "commit") {
2618                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2619                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2620                 } elsif ($tag{'reftype'} eq "blob") {
2621                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2622                 }
2623                 print "</td>\n" .
2624                       "</tr>";
2625         }
2626         if (defined $extra) {
2627                 print "<tr>\n" .
2628                       "<td colspan=\"5\">$extra</td>\n" .
2629                       "</tr>\n";
2630         }
2631         print "</table>\n";
2632 }
2633
2634 sub git_heads_body {
2635         # uses global variable $project
2636         my ($headlist, $head, $from, $to, $extra) = @_;
2637         $from = 0 unless defined $from;
2638         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2639
2640         print "<table class=\"heads\" cellspacing=\"0\">\n";
2641         my $alternate = 1;
2642         for (my $i = $from; $i <= $to; $i++) {
2643                 my $entry = $headlist->[$i];
2644                 my %ref = %$entry;
2645                 my $curr = $ref{'id'} eq $head;
2646                 if ($alternate) {
2647                         print "<tr class=\"dark\">\n";
2648                 } else {
2649                         print "<tr class=\"light\">\n";
2650                 }
2651                 $alternate ^= 1;
2652                 print "<td><i>$ref{'age'}</i></td>\n" .
2653                       ($curr ? "<td class=\"current_head\">" : "<td>") .
2654                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2655                                -class => "list name"},esc_html($ref{'name'})) .
2656                       "</td>\n" .
2657                       "<td class=\"link\">" .
2658                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2659                       $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2660                       $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2661                       "</td>\n" .
2662                       "</tr>";
2663         }
2664         if (defined $extra) {
2665                 print "<tr>\n" .
2666                       "<td colspan=\"3\">$extra</td>\n" .
2667                       "</tr>\n";
2668         }
2669         print "</table>\n";
2670 }
2671
2672 ## ======================================================================
2673 ## ======================================================================
2674 ## actions
2675
2676 sub git_project_list {
2677         my $order = $cgi->param('o');
2678         if (defined $order && $order !~ m/project|descr|owner|age/) {
2679                 die_error(undef, "Unknown order parameter");
2680         }
2681
2682         my @list = git_get_projects_list();
2683         if (!@list) {
2684                 die_error(undef, "No projects found");
2685         }
2686
2687         git_header_html();
2688         if (-f $home_text) {
2689                 print "<div class=\"index_include\">\n";
2690                 open (my $fd, $home_text);
2691                 print <$fd>;
2692                 close $fd;
2693                 print "</div>\n";
2694         }
2695         git_project_list_body(\@list, $order);
2696         git_footer_html();
2697 }
2698
2699 sub git_forks {
2700         my $order = $cgi->param('o');
2701         if (defined $order && $order !~ m/project|descr|owner|age/) {
2702                 die_error(undef, "Unknown order parameter");
2703         }
2704
2705         my @list = git_get_projects_list($project);
2706         if (!@list) {
2707                 die_error(undef, "No forks found");
2708         }
2709
2710         git_header_html();
2711         git_print_page_nav('','');
2712         git_print_header_div('summary', "$project forks");
2713         git_project_list_body(\@list, $order);
2714         git_footer_html();
2715 }
2716
2717 sub git_project_index {
2718         my @projects = git_get_projects_list($project);
2719
2720         print $cgi->header(
2721                 -type => 'text/plain',
2722                 -charset => 'utf-8',
2723                 -content_disposition => 'inline; filename="index.aux"');
2724
2725         foreach my $pr (@projects) {
2726                 if (!exists $pr->{'owner'}) {
2727                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2728                 }
2729
2730                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2731                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2732                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2733                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2734                 $path  =~ s/ /\+/g;
2735                 $owner =~ s/ /\+/g;
2736
2737                 print "$path $owner\n";
2738         }
2739 }
2740
2741 sub git_summary {
2742         my $descr = git_get_project_description($project) || "none";
2743         my $head = git_get_head_hash($project);
2744         my %co = parse_commit($head);
2745         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2746
2747         my $owner = git_get_project_owner($project);
2748
2749         my $refs = git_get_references();
2750         my @taglist  = git_get_tags_list(15);
2751         my @headlist = git_get_heads_list(15);
2752         my @forklist;
2753         my ($check_forks) = gitweb_check_feature('forks');
2754
2755         if ($check_forks) {
2756                 @forklist = git_get_projects_list($project);
2757         }
2758
2759         git_header_html();
2760         git_print_page_nav('summary','', $head);
2761
2762         print "<div class=\"title\">&nbsp;</div>\n";
2763         print "<table cellspacing=\"0\">\n" .
2764               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2765               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2766               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2767         # use per project git URL list in $projectroot/$project/cloneurl
2768         # or make project git URL from git base URL and project name
2769         my $url_tag = "URL";
2770         my @url_list = git_get_project_url_list($project);
2771         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2772         foreach my $git_url (@url_list) {
2773                 next unless $git_url;
2774                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2775                 $url_tag = "";
2776         }
2777         print "</table>\n";
2778
2779         if (-s "$projectroot/$project/README.html") {
2780                 if (open my $fd, "$projectroot/$project/README.html") {
2781                         print "<div class=\"title\">readme</div>\n";
2782                         print $_ while (<$fd>);
2783                         close $fd;
2784                 }
2785         }
2786
2787         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2788                 git_get_head_hash($project), "--"
2789                 or die_error(undef, "Open git-rev-list failed");
2790         my @revlist = map { chomp; $_ } <$fd>;
2791         close $fd;
2792         git_print_header_div('shortlog');
2793         git_shortlog_body(\@revlist, 0, 15, $refs,
2794                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2795
2796         if (@taglist) {
2797                 git_print_header_div('tags');
2798                 git_tags_body(\@taglist, 0, 15,
2799                               $cgi->a({-href => href(action=>"tags")}, "..."));
2800         }
2801
2802         if (@headlist) {
2803                 git_print_header_div('heads');
2804                 git_heads_body(\@headlist, $head, 0, 15,
2805                                $cgi->a({-href => href(action=>"heads")}, "..."));
2806         }
2807
2808         if (@forklist) {
2809                 git_print_header_div('forks');
2810                 git_project_list_body(\@forklist, undef, 0, 15,
2811                                       $cgi->a({-href => href(action=>"forks")}, "..."),
2812                                       'noheader');
2813         }
2814
2815         git_footer_html();
2816 }
2817
2818 sub git_tag {
2819         my $head = git_get_head_hash($project);
2820         git_header_html();
2821         git_print_page_nav('','', $head,undef,$head);
2822         my %tag = parse_tag($hash);
2823         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2824         print "<div class=\"title_text\">\n" .
2825               "<table cellspacing=\"0\">\n" .
2826               "<tr>\n" .
2827               "<td>object</td>\n" .
2828               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2829                                $tag{'object'}) . "</td>\n" .
2830               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2831                                               $tag{'type'}) . "</td>\n" .
2832               "</tr>\n";
2833         if (defined($tag{'author'})) {
2834                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2835                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2836                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2837                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2838                         "</td></tr>\n";
2839         }
2840         print "</table>\n\n" .
2841               "</div>\n";
2842         print "<div class=\"page_body\">";
2843         my $comment = $tag{'comment'};
2844         foreach my $line (@$comment) {
2845                 print esc_html($line) . "<br/>\n";
2846         }
2847         print "</div>\n";
2848         git_footer_html();
2849 }
2850
2851 sub git_blame2 {
2852         my $fd;
2853         my $ftype;
2854
2855         my ($have_blame) = gitweb_check_feature('blame');
2856         if (!$have_blame) {
2857                 die_error('403 Permission denied', "Permission denied");
2858         }
2859         die_error('404 Not Found', "File name not defined") if (!$file_name);
2860         $hash_base ||= git_get_head_hash($project);
2861         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2862         my %co = parse_commit($hash_base)
2863                 or die_error(undef, "Reading commit failed");
2864         if (!defined $hash) {
2865                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2866                         or die_error(undef, "Error looking up file");
2867         }
2868         $ftype = git_get_type($hash);
2869         if ($ftype !~ "blob") {
2870                 die_error("400 Bad Request", "Object is not a blob");
2871         }
2872         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2873               $file_name, $hash_base)
2874                 or die_error(undef, "Open git-blame failed");
2875         git_header_html();
2876         my $formats_nav =
2877                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2878                         "blob") .
2879                 " | " .
2880                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2881                         "history") .
2882                 " | " .
2883                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2884                         "HEAD");
2885         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2886         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2887         git_print_page_path($file_name, $ftype, $hash_base);
2888         my @rev_color = (qw(light2 dark2));
2889         my $num_colors = scalar(@rev_color);
2890         my $current_color = 0;
2891         my $last_rev;
2892         print <<HTML;
2893 <div class="page_body">
2894 <table class="blame">
2895 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2896 HTML
2897         my %metainfo = ();
2898         while (1) {
2899                 $_ = <$fd>;
2900                 last unless defined $_;
2901                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2902                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2903                 if (!exists $metainfo{$full_rev}) {
2904                         $metainfo{$full_rev} = {};
2905                 }
2906                 my $meta = $metainfo{$full_rev};
2907                 while (<$fd>) {
2908                         last if (s/^\t//);
2909                         if (/^(\S+) (.*)$/) {
2910                                 $meta->{$1} = $2;
2911                         }
2912                 }
2913                 my $data = $_;
2914                 my $rev = substr($full_rev, 0, 8);
2915                 my $author = $meta->{'author'};
2916                 my %date = parse_date($meta->{'author-time'},
2917                                       $meta->{'author-tz'});
2918                 my $date = $date{'iso-tz'};
2919                 if ($group_size) {
2920                         $current_color = ++$current_color % $num_colors;
2921                 }
2922                 print "<tr class=\"$rev_color[$current_color]\">\n";
2923                 if ($group_size) {
2924                         print "<td class=\"sha1\"";
2925                         print " title=\"". esc_html($author) . ", $date\"";
2926                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2927                         print ">";
2928                         print $cgi->a({-href => href(action=>"commit",
2929                                                      hash=>$full_rev,
2930                                                      file_name=>$file_name)},
2931                                       esc_html($rev));
2932                         print "</td>\n";
2933                 }
2934                 my $blamed = href(action => 'blame',
2935                                   file_name => $meta->{'filename'},
2936                                   hash_base => $full_rev);
2937                 print "<td class=\"linenr\">";
2938                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2939                                 -id => "l$lineno",
2940                                 -class => "linenr" },
2941                               esc_html($lineno));
2942                 print "</td>";
2943                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2944                 print "</tr>\n";
2945         }
2946         print "</table>\n";
2947         print "</div>";
2948         close $fd
2949                 or print "Reading blob failed\n";
2950         git_footer_html();
2951 }
2952
2953 sub git_blame {
2954         my $fd;
2955
2956         my ($have_blame) = gitweb_check_feature('blame');
2957         if (!$have_blame) {
2958                 die_error('403 Permission denied', "Permission denied");
2959         }
2960         die_error('404 Not Found', "File name not defined") if (!$file_name);
2961         $hash_base ||= git_get_head_hash($project);
2962         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2963         my %co = parse_commit($hash_base)
2964                 or die_error(undef, "Reading commit failed");
2965         if (!defined $hash) {
2966                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2967                         or die_error(undef, "Error lookup file");
2968         }
2969         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2970                 or die_error(undef, "Open git-annotate failed");
2971         git_header_html();
2972         my $formats_nav =
2973                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2974                         "blob") .
2975                 " | " .
2976                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2977                         "history") .
2978                 " | " .
2979                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2980                         "HEAD");
2981         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2982         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2983         git_print_page_path($file_name, 'blob', $hash_base);
2984         print "<div class=\"page_body\">\n";
2985         print <<HTML;
2986 <table class="blame">
2987   <tr>
2988     <th>Commit</th>
2989     <th>Age</th>
2990     <th>Author</th>
2991     <th>Line</th>
2992     <th>Data</th>
2993   </tr>
2994 HTML
2995         my @line_class = (qw(light dark));
2996         my $line_class_len = scalar (@line_class);
2997         my $line_class_num = $#line_class;
2998         while (my $line = <$fd>) {
2999                 my $long_rev;
3000                 my $short_rev;
3001                 my $author;
3002                 my $time;
3003                 my $lineno;
3004                 my $data;
3005                 my $age;
3006                 my $age_str;
3007                 my $age_class;
3008
3009                 chomp $line;
3010                 $line_class_num = ($line_class_num + 1) % $line_class_len;
3011
3012                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3013                         $long_rev = $1;
3014                         $author   = $2;
3015                         $time     = $3;
3016                         $lineno   = $4;
3017                         $data     = $5;
3018                 } else {
3019                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3020                         next;
3021                 }
3022                 $short_rev  = substr ($long_rev, 0, 8);
3023                 $age        = time () - $time;
3024                 $age_str    = age_string ($age);
3025                 $age_str    =~ s/ /&nbsp;/g;
3026                 $age_class  = age_class($age);
3027                 $author     = esc_html ($author);
3028                 $author     =~ s/ /&nbsp;/g;
3029
3030                 $data = untabify($data);
3031                 $data = esc_html ($data);
3032
3033                 print <<HTML;
3034   <tr class="$line_class[$line_class_num]">
3035     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3036     <td class="$age_class">$age_str</td>
3037     <td>$author</td>
3038     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3039     <td class="pre">$data</td>
3040   </tr>
3041 HTML
3042         } # while (my $line = <$fd>)
3043         print "</table>\n\n";
3044         close $fd
3045                 or print "Reading blob failed.\n";
3046         print "</div>";
3047         git_footer_html();
3048 }
3049
3050 sub git_tags {
3051         my $head = git_get_head_hash($project);
3052         git_header_html();
3053         git_print_page_nav('','', $head,undef,$head);
3054         git_print_header_div('summary', $project);
3055
3056         my @tagslist = git_get_tags_list();
3057         if (@tagslist) {
3058                 git_tags_body(\@tagslist);
3059         }
3060         git_footer_html();
3061 }
3062
3063 sub git_heads {
3064         my $head = git_get_head_hash($project);
3065         git_header_html();
3066         git_print_page_nav('','', $head,undef,$head);
3067         git_print_header_div('summary', $project);
3068
3069         my @headslist = git_get_heads_list();
3070         if (@headslist) {
3071                 git_heads_body(\@headslist, $head);
3072         }
3073         git_footer_html();
3074 }
3075
3076 sub git_blob_plain {
3077         my $expires;
3078
3079         if (!defined $hash) {
3080                 if (defined $file_name) {
3081                         my $base = $hash_base || git_get_head_hash($project);
3082                         $hash = git_get_hash_by_path($base, $file_name, "blob")
3083                                 or die_error(undef, "Error lookup file");
3084                 } else {
3085                         die_error(undef, "No file name defined");
3086                 }
3087         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3088                 # blobs defined by non-textual hash id's can be cached
3089                 $expires = "+1d";
3090         }
3091
3092         my $type = shift;
3093         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3094                 or die_error(undef, "Couldn't cat $file_name, $hash");
3095
3096         $type ||= blob_mimetype($fd, $file_name);
3097
3098         # save as filename, even when no $file_name is given
3099         my $save_as = "$hash";
3100         if (defined $file_name) {
3101                 $save_as = $file_name;
3102         } elsif ($type =~ m/^text\//) {
3103                 $save_as .= '.txt';
3104         }
3105
3106         print $cgi->header(
3107                 -type => "$type",
3108                 -expires=>$expires,
3109                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
3110         undef $/;
3111         binmode STDOUT, ':raw';
3112         print <$fd>;
3113         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3114         $/ = "\n";
3115         close $fd;
3116 }
3117
3118 sub git_blob {
3119         my $expires;
3120
3121         if (!defined $hash) {
3122                 if (defined $file_name) {
3123                         my $base = $hash_base || git_get_head_hash($project);
3124                         $hash = git_get_hash_by_path($base, $file_name, "blob")
3125                                 or die_error(undef, "Error lookup file");
3126                 } else {
3127                         die_error(undef, "No file name defined");
3128                 }
3129         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3130                 # blobs defined by non-textual hash id's can be cached
3131                 $expires = "+1d";
3132         }
3133
3134         my ($have_blame) = gitweb_check_feature('blame');
3135         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3136                 or die_error(undef, "Couldn't cat $file_name, $hash");
3137         my $mimetype = blob_mimetype($fd, $file_name);
3138         if ($mimetype !~ m/^text\//) {
3139                 close $fd;
3140                 return git_blob_plain($mimetype);
3141         }
3142         git_header_html(undef, $expires);
3143         my $formats_nav = '';
3144         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3145                 if (defined $file_name) {
3146                         if ($have_blame) {
3147                                 $formats_nav .=
3148                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3149                                                                hash=>$hash, file_name=>$file_name)},
3150                                                 "blame") .
3151                                         " | ";
3152                         }
3153                         $formats_nav .=
3154                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3155                                                        hash=>$hash, file_name=>$file_name)},
3156                                         "history") .
3157                                 " | " .
3158                                 $cgi->a({-href => href(action=>"blob_plain",
3159                                                        hash=>$hash, file_name=>$file_name)},
3160                                         "raw") .
3161                                 " | " .
3162                                 $cgi->a({-href => href(action=>"blob",
3163                                                        hash_base=>"HEAD", file_name=>$file_name)},
3164                                         "HEAD");
3165                 } else {
3166                         $formats_nav .=
3167                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3168                 }
3169                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3170                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3171         } else {
3172                 print "<div class=\"page_nav\">\n" .
3173                       "<br/><br/></div>\n" .
3174                       "<div class=\"title\">$hash</div>\n";
3175         }
3176         git_print_page_path($file_name, "blob", $hash_base);
3177         print "<div class=\"page_body\">\n";
3178         my $nr;
3179         while (my $line = <$fd>) {
3180                 chomp $line;
3181                 $nr++;
3182                 $line = untabify($line);
3183                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3184                        $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3185         }
3186         close $fd
3187                 or print "Reading blob failed.\n";
3188         print "</div>";
3189         git_footer_html();
3190 }
3191
3192 sub git_tree {
3193         my $have_snapshot = gitweb_have_snapshot();
3194
3195         if (!defined $hash_base) {
3196                 $hash_base = "HEAD";
3197         }
3198         if (!defined $hash) {
3199                 if (defined $file_name) {
3200                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3201                 } else {
3202                         $hash = $hash_base;
3203                 }
3204         }
3205         $/ = "\0";
3206         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3207                 or die_error(undef, "Open git-ls-tree failed");
3208         my @entries = map { chomp; $_ } <$fd>;
3209         close $fd or die_error(undef, "Reading tree failed");
3210         $/ = "\n";
3211
3212         my $refs = git_get_references();
3213         my $ref = format_ref_marker($refs, $hash_base);
3214         git_header_html();
3215         my $basedir = '';
3216         my ($have_blame) = gitweb_check_feature('blame');
3217         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3218                 my @views_nav = ();
3219                 if (defined $file_name) {
3220                         push @views_nav,
3221                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3222                                                        hash=>$hash, file_name=>$file_name)},
3223                                         "history"),
3224                                 $cgi->a({-href => href(action=>"tree",
3225                                                        hash_base=>"HEAD", file_name=>$file_name)},
3226                                         "HEAD"),
3227                 }
3228                 if ($have_snapshot) {
3229                         # FIXME: Should be available when we have no hash base as well.
3230                         push @views_nav,
3231                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3232                                         "snapshot");
3233                 }
3234                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3235                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3236         } else {
3237                 undef $hash_base;
3238                 print "<div class=\"page_nav\">\n";
3239                 print "<br/><br/></div>\n";
3240                 print "<div class=\"title\">$hash</div>\n";
3241         }
3242         if (defined $file_name) {
3243                 $basedir = $file_name;
3244                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
3245                         $basedir .= '/';
3246                 }
3247         }
3248         git_print_page_path($file_name, 'tree', $hash_base);
3249         print "<div class=\"page_body\">\n";
3250         print "<table cellspacing=\"0\">\n";
3251         my $alternate = 1;
3252         # '..' (top directory) link if possible
3253         if (defined $hash_base &&
3254             defined $file_name && $file_name =~ m![^/]+$!) {
3255                 if ($alternate) {
3256                         print "<tr class=\"dark\">\n";
3257                 } else {
3258                         print "<tr class=\"light\">\n";
3259                 }
3260                 $alternate ^= 1;
3261
3262                 my $up = $file_name;
3263                 $up =~ s!/?[^/]+$!!;
3264                 undef $up unless $up;
3265                 # based on git_print_tree_entry
3266                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
3267                 print '<td class="list">';
3268                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3269                                              file_name=>$up)},
3270                               "..");
3271                 print "</td>\n";
3272                 print "<td class=\"link\"></td>\n";
3273
3274                 print "</tr>\n";
3275         }
3276         foreach my $line (@entries) {
3277                 my %t = parse_ls_tree_line($line, -z => 1);
3278
3279                 if ($alternate) {
3280                         print "<tr class=\"dark\">\n";
3281                 } else {
3282                         print "<tr class=\"light\">\n";
3283                 }
3284                 $alternate ^= 1;
3285
3286                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3287
3288                 print "</tr>\n";
3289         }
3290         print "</table>\n" .
3291               "</div>";
3292         git_footer_html();
3293 }
3294
3295 sub git_snapshot {
3296         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3297         my $have_snapshot = (defined $ctype && defined $suffix);
3298         if (!$have_snapshot) {
3299                 die_error('403 Permission denied', "Permission denied");
3300         }
3301
3302         if (!defined $hash) {
3303                 $hash = git_get_head_hash($project);
3304         }
3305
3306         my $filename = basename($project) . "-$hash.tar.$suffix";
3307
3308         print $cgi->header(
3309                 -type => 'application/x-tar',
3310                 -content_encoding => $ctype,
3311                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3312                 -status => '200 OK');
3313
3314         my $git = git_cmd_str();
3315         my $name = $project;
3316         $name =~ s/\047/\047\\\047\047/g;
3317         open my $fd, "-|",
3318         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3319                 or die_error(undef, "Execute git-tar-tree failed.");
3320         binmode STDOUT, ':raw';
3321         print <$fd>;
3322         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3323         close $fd;
3324
3325 }
3326
3327 sub git_log {
3328         my $head = git_get_head_hash($project);
3329         if (!defined $hash) {
3330                 $hash = $head;
3331         }
3332         if (!defined $page) {
3333                 $page = 0;
3334         }
3335         my $refs = git_get_references();
3336
3337         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3338         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3339                 or die_error(undef, "Open git-rev-list failed");
3340         my @revlist = map { chomp; $_ } <$fd>;
3341         close $fd;
3342
3343         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3344
3345         git_header_html();
3346         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3347
3348         if (!@revlist) {
3349                 my %co = parse_commit($hash);
3350
3351                 git_print_header_div('summary', $project);
3352                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3353         }
3354         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3355                 my $commit = $revlist[$i];
3356                 my $ref = format_ref_marker($refs, $commit);
3357                 my %co = parse_commit($commit);
3358                 next if !%co;
3359                 my %ad = parse_date($co{'author_epoch'});
3360                 git_print_header_div('commit',
3361                                "<span class=\"age\">$co{'age_string'}</span>" .
3362                                esc_html($co{'title'}) . $ref,
3363                                $commit);
3364                 print "<div class=\"title_text\">\n" .
3365                       "<div class=\"log_link\">\n" .
3366                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3367                       " | " .
3368                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3369                       " | " .
3370                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3371                       "<br/>\n" .
3372                       "</div>\n" .
3373                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3374                       "</div>\n";
3375
3376                 print "<div class=\"log_body\">\n";
3377                 git_print_log($co{'comment'}, -final_empty_line=> 1);
3378                 print "</div>\n";
3379         }
3380         git_footer_html();
3381 }
3382
3383 sub git_commit {
3384         my %co = parse_commit($hash);
3385         if (!%co) {
3386                 die_error(undef, "Unknown commit object");
3387         }
3388         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3389         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3390
3391         my $parent = $co{'parent'};
3392         if (!defined $parent) {
3393                 $parent = "--root";
3394         }
3395         open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3396                 @diff_opts, $parent, $hash, "--"
3397                 or die_error(undef, "Open git-diff-tree failed");
3398         my @difftree = map { chomp; $_ } <$fd>;
3399         close $fd or die_error(undef, "Reading git-diff-tree failed");
3400
3401         # non-textual hash id's can be cached
3402         my $expires;
3403         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3404                 $expires = "+1d";
3405         }
3406         my $refs = git_get_references();
3407         my $ref = format_ref_marker($refs, $co{'id'});
3408
3409         my $have_snapshot = gitweb_have_snapshot();
3410
3411         my @views_nav = ();
3412         if (defined $file_name && defined $co{'parent'}) {
3413                 push @views_nav,
3414                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3415                                 "blame");
3416         }
3417         git_header_html(undef, $expires);
3418         git_print_page_nav('commit', '',
3419                            $hash, $co{'tree'}, $hash,
3420                            join (' | ', @views_nav));
3421
3422         if (defined $co{'parent'}) {
3423                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3424         } else {
3425                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3426         }
3427         print "<div class=\"title_text\">\n" .
3428               "<table cellspacing=\"0\">\n";
3429         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3430               "<tr>" .
3431               "<td></td><td> $ad{'rfc2822'}";
3432         if ($ad{'hour_local'} < 6) {
3433                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3434                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3435         } else {
3436                 printf(" (%02d:%02d %s)",
3437                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3438         }
3439         print "</td>" .
3440               "</tr>\n";
3441         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3442         print "<tr><td></td><td> $cd{'rfc2822'}" .
3443               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3444               "</td></tr>\n";
3445         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3446         print "<tr>" .
3447               "<td>tree</td>" .
3448               "<td class=\"sha1\">" .
3449               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3450                        class => "list"}, $co{'tree'}) .
3451               "</td>" .
3452               "<td class=\"link\">" .
3453               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3454                       "tree");
3455         if ($have_snapshot) {
3456                 print " | " .
3457                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3458         }
3459         print "</td>" .
3460               "</tr>\n";
3461         my $parents = $co{'parents'};
3462         foreach my $par (@$parents) {
3463                 print "<tr>" .
3464                       "<td>parent</td>" .
3465                       "<td class=\"sha1\">" .
3466                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3467                                class => "list"}, $par) .
3468                       "</td>" .
3469                       "<td class=\"link\">" .
3470                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3471                       " | " .
3472                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3473                       "</td>" .
3474                       "</tr>\n";
3475         }
3476         print "</table>".
3477               "</div>\n";
3478
3479         print "<div class=\"page_body\">\n";
3480         git_print_log($co{'comment'});
3481         print "</div>\n";
3482
3483         git_difftree_body(\@difftree, $hash, $parent);
3484
3485         git_footer_html();
3486 }
3487
3488 sub git_blobdiff {
3489         my $format = shift || 'html';
3490
3491         my $fd;
3492         my @difftree;
3493         my %diffinfo;
3494         my $expires;
3495
3496         # preparing $fd and %diffinfo for git_patchset_body
3497         # new style URI
3498         if (defined $hash_base && defined $hash_parent_base) {
3499                 if (defined $file_name) {
3500                         # read raw output
3501                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3502                                 $hash_parent_base, $hash_base,
3503                                 "--", $file_name
3504                                 or die_error(undef, "Open git-diff-tree failed");
3505                         @difftree = map { chomp; $_ } <$fd>;
3506                         close $fd
3507                                 or die_error(undef, "Reading git-diff-tree failed");
3508                         @difftree
3509                                 or die_error('404 Not Found', "Blob diff not found");
3510
3511                 } elsif (defined $hash &&
3512                          $hash =~ /[0-9a-fA-F]{40}/) {
3513                         # try to find filename from $hash
3514
3515                         # read filtered raw output
3516                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3517                                 $hash_parent_base, $hash_base, "--"
3518                                 or die_error(undef, "Open git-diff-tree failed");
3519                         @difftree =
3520                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3521                                 # $hash == to_id
3522                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3523                                 map { chomp; $_ } <$fd>;
3524                         close $fd
3525                                 or die_error(undef, "Reading git-diff-tree failed");
3526                         @difftree
3527                                 or die_error('404 Not Found', "Blob diff not found");
3528
3529                 } else {
3530                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3531                 }
3532
3533                 if (@difftree > 1) {
3534                         die_error('404 Not Found', "Ambiguous blob diff specification");
3535                 }
3536
3537                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3538                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3539                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3540
3541                 $hash_parent ||= $diffinfo{'from_id'};
3542                 $hash        ||= $diffinfo{'to_id'};
3543
3544                 # non-textual hash id's can be cached
3545                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3546                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3547                         $expires = '+1d';
3548                 }
3549
3550                 # open patch output
3551                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3552                         '-p', $hash_parent_base, $hash_base,
3553                         "--", $file_name
3554                         or die_error(undef, "Open git-diff-tree failed");
3555         }
3556
3557         # old/legacy style URI
3558         if (!%diffinfo && # if new style URI failed
3559             defined $hash && defined $hash_parent) {
3560                 # fake git-diff-tree raw output
3561                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3562                 $diffinfo{'from_id'} = $hash_parent;
3563                 $diffinfo{'to_id'}   = $hash;
3564                 if (defined $file_name) {
3565                         if (defined $file_parent) {
3566                                 $diffinfo{'status'} = '2';
3567                                 $diffinfo{'from_file'} = $file_parent;
3568                                 $diffinfo{'to_file'}   = $file_name;
3569                         } else { # assume not renamed
3570                                 $diffinfo{'status'} = '1';
3571                                 $diffinfo{'from_file'} = $file_name;
3572                                 $diffinfo{'to_file'}   = $file_name;
3573                         }
3574                 } else { # no filename given
3575                         $diffinfo{'status'} = '2';
3576                         $diffinfo{'from_file'} = $hash_parent;
3577                         $diffinfo{'to_file'}   = $hash;
3578                 }
3579
3580                 # non-textual hash id's can be cached
3581                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3582                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3583                         $expires = '+1d';
3584                 }
3585
3586                 # open patch output
3587                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3588                         $hash_parent, $hash, "--"
3589                         or die_error(undef, "Open git-diff failed");
3590         } else  {
3591                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3592                         unless %diffinfo;
3593         }
3594
3595         # header
3596         if ($format eq 'html') {
3597                 my $formats_nav =
3598                         $cgi->a({-href => href(action=>"blobdiff_plain",
3599                                                hash=>$hash, hash_parent=>$hash_parent,
3600                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3601                                                file_name=>$file_name, file_parent=>$file_parent)},
3602                                 "raw");
3603                 git_header_html(undef, $expires);
3604                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3605                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3606                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3607                 } else {
3608                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3609                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3610                 }
3611                 if (defined $file_name) {
3612                         git_print_page_path($file_name, "blob", $hash_base);
3613                 } else {
3614                         print "<div class=\"page_path\"></div>\n";
3615                 }
3616
3617         } elsif ($format eq 'plain') {
3618                 print $cgi->header(
3619                         -type => 'text/plain',
3620                         -charset => 'utf-8',
3621                         -expires => $expires,
3622                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3623
3624                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3625
3626         } else {
3627                 die_error(undef, "Unknown blobdiff format");
3628         }
3629
3630         # patch
3631         if ($format eq 'html') {
3632                 print "<div class=\"page_body\">\n";
3633
3634                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3635                 close $fd;
3636
3637                 print "</div>\n"; # class="page_body"
3638                 git_footer_html();
3639
3640         } else {
3641                 while (my $line = <$fd>) {
3642                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3643                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3644
3645                         print $line;
3646
3647                         last if $line =~ m!^\+\+\+!;
3648                 }
3649                 local $/ = undef;
3650                 print <$fd>;
3651                 close $fd;
3652         }
3653 }
3654
3655 sub git_blobdiff_plain {
3656         git_blobdiff('plain');
3657 }
3658
3659 sub git_commitdiff {
3660         my $format = shift || 'html';
3661         my %co = parse_commit($hash);
3662         if (!%co) {
3663                 die_error(undef, "Unknown commit object");
3664         }
3665
3666         # we need to prepare $formats_nav before any parameter munging
3667         my $formats_nav;
3668         if ($format eq 'html') {
3669                 $formats_nav =
3670                         $cgi->a({-href => href(action=>"commitdiff_plain",
3671                                                hash=>$hash, hash_parent=>$hash_parent)},
3672                                 "raw");
3673
3674                 if (defined $hash_parent) {
3675                         # commitdiff with two commits given
3676                         my $hash_parent_short = $hash_parent;
3677                         if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3678                                 $hash_parent_short = substr($hash_parent, 0, 7);
3679                         }
3680                         $formats_nav .=
3681                                 ' (from: ' .
3682                                 $cgi->a({-href => href(action=>"commitdiff",
3683                                                        hash=>$hash_parent)},
3684                                         esc_html($hash_parent_short)) .
3685                                 ')';
3686                 } elsif (!$co{'parent'}) {
3687                         # --root commitdiff
3688                         $formats_nav .= ' (initial)';
3689                 } elsif (scalar @{$co{'parents'}} == 1) {
3690                         # single parent commit
3691                         $formats_nav .=
3692                                 ' (parent: ' .
3693                                 $cgi->a({-href => href(action=>"commitdiff",
3694                                                        hash=>$co{'parent'})},
3695                                         esc_html(substr($co{'parent'}, 0, 7))) .
3696                                 ')';
3697                 } else {
3698                         # merge commit
3699                         $formats_nav .=
3700                                 ' (merge: ' .
3701                                 join(' ', map {
3702                                         $cgi->a({-href => href(action=>"commitdiff",
3703                                                                hash=>$_)},
3704                                                 esc_html(substr($_, 0, 7)));
3705                                 } @{$co{'parents'}} ) .
3706                                 ')';
3707                 }
3708         }
3709
3710         if (!defined $hash_parent) {
3711                 $hash_parent = $co{'parent'} || '--root';
3712         }
3713
3714         # read commitdiff
3715         my $fd;
3716         my @difftree;
3717         if ($format eq 'html') {
3718                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3719                         "--no-commit-id", "--patch-with-raw", "--full-index",
3720                         $hash_parent, $hash, "--"
3721                         or die_error(undef, "Open git-diff-tree failed");
3722
3723                 while (chomp(my $line = <$fd>)) {
3724                         # empty line ends raw part of diff-tree output
3725                         last unless $line;
3726                         push @difftree, $line;
3727                 }
3728
3729         } elsif ($format eq 'plain') {
3730                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3731                         '-p', $hash_parent, $hash, "--"
3732                         or die_error(undef, "Open git-diff-tree failed");
3733
3734         } else {
3735                 die_error(undef, "Unknown commitdiff format");
3736         }
3737
3738         # non-textual hash id's can be cached
3739         my $expires;
3740         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3741                 $expires = "+1d";
3742         }
3743
3744         # write commit message
3745         if ($format eq 'html') {
3746                 my $refs = git_get_references();
3747                 my $ref = format_ref_marker($refs, $co{'id'});
3748
3749                 git_header_html(undef, $expires);
3750                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3751                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3752                 git_print_authorship(\%co);
3753                 print "<div class=\"page_body\">\n";
3754                 if (@{$co{'comment'}} > 1) {
3755                         print "<div class=\"log\">\n";
3756                         git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3757                         print "</div>\n"; # class="log"
3758                 }
3759
3760         } elsif ($format eq 'plain') {
3761                 my $refs = git_get_references("tags");
3762                 my $tagname = git_get_rev_name_tags($hash);
3763                 my $filename = basename($project) . "-$hash.patch";
3764
3765                 print $cgi->header(
3766                         -type => 'text/plain',
3767                         -charset => 'utf-8',
3768                         -expires => $expires,
3769                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3770                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3771                 print <<TEXT;
3772 From: $co{'author'}
3773 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3774 Subject: $co{'title'}
3775 TEXT
3776                 print "X-Git-Tag: $tagname\n" if $tagname;
3777                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3778
3779                 foreach my $line (@{$co{'comment'}}) {
3780                         print "$line\n";
3781                 }
3782                 print "---\n\n";
3783         }
3784
3785         # write patch
3786         if ($format eq 'html') {
3787                 git_difftree_body(\@difftree, $hash, $hash_parent);
3788                 print "<br/>\n";
3789
3790                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3791                 close $fd;
3792                 print "</div>\n"; # class="page_body"
3793                 git_footer_html();
3794
3795         } elsif ($format eq 'plain') {
3796                 local $/ = undef;
3797                 print <$fd>;
3798                 close $fd
3799                         or print "Reading git-diff-tree failed\n";
3800         }
3801 }
3802
3803 sub git_commitdiff_plain {
3804         git_commitdiff('plain');
3805 }
3806
3807 sub git_history {
3808         if (!defined $hash_base) {
3809                 $hash_base = git_get_head_hash($project);
3810         }
3811         if (!defined $page) {
3812                 $page = 0;
3813         }
3814         my $ftype;
3815         my %co = parse_commit($hash_base);
3816         if (!%co) {
3817                 die_error(undef, "Unknown commit object");
3818         }
3819
3820         my $refs = git_get_references();
3821         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3822
3823         if (!defined $hash && defined $file_name) {
3824                 $hash = git_get_hash_by_path($hash_base, $file_name);
3825         }
3826         if (defined $hash) {
3827                 $ftype = git_get_type($hash);
3828         }
3829
3830         open my $fd, "-|",
3831                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3832                         or die_error(undef, "Open git-rev-list-failed");
3833         my @revlist = map { chomp; $_ } <$fd>;
3834         close $fd
3835                 or die_error(undef, "Reading git-rev-list failed");
3836
3837         my $paging_nav = '';
3838         if ($page > 0) {
3839                 $paging_nav .=
3840                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3841                                                file_name=>$file_name)},
3842                                 "first");
3843                 $paging_nav .= " &sdot; " .
3844                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3845                                                file_name=>$file_name, page=>$page-1),
3846                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3847         } else {
3848                 $paging_nav .= "first";
3849                 $paging_nav .= " &sdot; prev";
3850         }
3851         if ($#revlist >= (100 * ($page+1)-1)) {
3852                 $paging_nav .= " &sdot; " .
3853                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3854                                                file_name=>$file_name, page=>$page+1),
3855                                  -accesskey => "n", -title => "Alt-n"}, "next");
3856         } else {
3857                 $paging_nav .= " &sdot; next";
3858         }
3859         my $next_link = '';
3860         if ($#revlist >= (100 * ($page+1)-1)) {
3861                 $next_link =
3862                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3863                                                file_name=>$file_name, page=>$page+1),
3864                                  -title => "Alt-n"}, "next");
3865         }
3866
3867         git_header_html();
3868         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3869         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3870         git_print_page_path($file_name, $ftype, $hash_base);
3871
3872         git_history_body(\@revlist, ($page * 100), $#revlist,
3873                          $refs, $hash_base, $ftype, $next_link);
3874
3875         git_footer_html();
3876 }
3877
3878 sub git_search {
3879         if (!defined $searchtext) {
3880                 die_error(undef, "Text field empty");
3881         }
3882         if (!defined $hash) {
3883                 $hash = git_get_head_hash($project);
3884         }
3885         my %co = parse_commit($hash);
3886         if (!%co) {
3887                 die_error(undef, "Unknown commit object");
3888         }
3889
3890         $searchtype ||= 'commit';
3891         if ($searchtype eq 'pickaxe') {
3892                 # pickaxe may take all resources of your box and run for several minutes
3893                 # with every query - so decide by yourself how public you make this feature
3894                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3895                 if (!$have_pickaxe) {
3896                         die_error('403 Permission denied', "Permission denied");
3897                 }
3898         }
3899
3900         git_header_html();
3901         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3902         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3903
3904         print "<table cellspacing=\"0\">\n";
3905         my $alternate = 1;
3906         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3907                 $/ = "\0";
3908                 open my $fd, "-|", git_cmd(), "rev-list",
3909                         "--header", "--parents", $hash, "--"
3910                         or next;
3911                 while (my $commit_text = <$fd>) {
3912                         if (!grep m/$searchtext/i, $commit_text) {
3913                                 next;
3914                         }
3915                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3916                                 next;
3917                         }
3918                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3919                                 next;
3920                         }
3921                         my @commit_lines = split "\n", $commit_text;
3922                         my %co = parse_commit(undef, \@commit_lines);
3923                         if (!%co) {
3924                                 next;
3925                         }
3926                         if ($alternate) {
3927                                 print "<tr class=\"dark\">\n";
3928                         } else {
3929                                 print "<tr class=\"light\">\n";
3930                         }
3931                         $alternate ^= 1;
3932                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3933                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3934                               "<td>" .
3935                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3936                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3937                         my $comment = $co{'comment'};
3938                         foreach my $line (@$comment) {
3939                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3940                                         my $lead = esc_html($1) || "";
3941                                         $lead = chop_str($lead, 30, 10);
3942                                         my $match = esc_html($2) || "";
3943                                         my $trail = esc_html($3) || "";
3944                                         $trail = chop_str($trail, 30, 10);
3945                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3946                                         print chop_str($text, 80, 5) . "<br/>\n";
3947                                 }
3948                         }
3949                         print "</td>\n" .
3950                               "<td class=\"link\">" .
3951                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3952                               " | " .
3953                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3954                         print "</td>\n" .
3955                               "</tr>\n";
3956                 }
3957                 close $fd;
3958         }
3959
3960         if ($searchtype eq 'pickaxe') {
3961                 $/ = "\n";
3962                 my $git_command = git_cmd_str();
3963                 open my $fd, "-|", "$git_command rev-list $hash | " .
3964                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3965                 undef %co;
3966                 my @files;
3967                 while (my $line = <$fd>) {
3968                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3969                                 my %set;
3970                                 $set{'file'} = $6;
3971                                 $set{'from_id'} = $3;
3972                                 $set{'to_id'} = $4;
3973                                 $set{'id'} = $set{'to_id'};
3974                                 if ($set{'id'} =~ m/0{40}/) {
3975                                         $set{'id'} = $set{'from_id'};
3976                                 }
3977                                 if ($set{'id'} =~ m/0{40}/) {
3978                                         next;
3979                                 }
3980                                 push @files, \%set;
3981                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3982                                 if (%co) {
3983                                         if ($alternate) {
3984                                                 print "<tr class=\"dark\">\n";
3985                                         } else {
3986                                                 print "<tr class=\"light\">\n";
3987                                         }
3988                                         $alternate ^= 1;
3989                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3990                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3991                                               "<td>" .
3992                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3993                                                       -class => "list subject"},
3994                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3995                                         while (my $setref = shift @files) {
3996                                                 my %set = %$setref;
3997                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3998                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3999                                                               -class => "list"},
4000                                                               "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4001                                                       "<br/>\n";
4002                                         }
4003                                         print "</td>\n" .
4004                                               "<td class=\"link\">" .
4005                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4006                                               " | " .
4007                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4008                                         print "</td>\n" .
4009                                               "</tr>\n";
4010                                 }
4011                                 %co = parse_commit($1);
4012                         }
4013                 }
4014                 close $fd;
4015         }
4016         print "</table>\n";
4017         git_footer_html();
4018 }
4019
4020 sub git_search_help {
4021         git_header_html();
4022         git_print_page_nav('','', $hash,$hash,$hash);
4023         print <<EOT;
4024 <dl>
4025 <dt><b>commit</b></dt>
4026 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
4027 <dt><b>author</b></dt>
4028 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4029 <dt><b>committer</b></dt>
4030 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4031 EOT
4032         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4033         if ($have_pickaxe) {
4034                 print <<EOT;
4035 <dt><b>pickaxe</b></dt>
4036 <dd>All commits that caused the string to appear or disappear from any file (changes that
4037 added, removed or "modified" the string) will be listed. This search can take a while and
4038 takes a lot of strain on the server, so please use it wisely.</dd>
4039 EOT
4040         }
4041         print "</dl>\n";
4042         git_footer_html();
4043 }
4044
4045 sub git_shortlog {
4046         my $head = git_get_head_hash($project);
4047         if (!defined $hash) {
4048                 $hash = $head;
4049         }
4050         if (!defined $page) {
4051                 $page = 0;
4052         }
4053         my $refs = git_get_references();
4054
4055         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4056         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4057                 or die_error(undef, "Open git-rev-list failed");
4058         my @revlist = map { chomp; $_ } <$fd>;
4059         close $fd;
4060
4061         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4062         my $next_link = '';
4063         if ($#revlist >= (100 * ($page+1)-1)) {
4064                 $next_link =
4065                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4066                                  -title => "Alt-n"}, "next");
4067         }
4068
4069
4070         git_header_html();
4071         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4072         git_print_header_div('summary', $project);
4073
4074         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4075
4076         git_footer_html();
4077 }
4078
4079 ## ......................................................................
4080 ## feeds (RSS, OPML)
4081
4082 sub git_rss {
4083         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4084         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4085                 git_get_head_hash($project), "--"
4086                 or die_error(undef, "Open git-rev-list failed");
4087         my @revlist = map { chomp; $_ } <$fd>;
4088         close $fd or die_error(undef, "Reading git-rev-list failed");
4089         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4090         print <<XML;
4091 <?xml version="1.0" encoding="utf-8"?>
4092 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4093 <channel>
4094 <title>$project $my_uri $my_url</title>
4095 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
4096 <description>$project log</description>
4097 <language>en</language>
4098 XML
4099
4100         for (my $i = 0; $i <= $#revlist; $i++) {
4101                 my $commit = $revlist[$i];
4102                 my %co = parse_commit($commit);
4103                 # we read 150, we always show 30 and the ones more recent than 48 hours
4104                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
4105                         last;
4106                 }
4107                 my %cd = parse_date($co{'committer_epoch'});
4108                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4109                         $co{'parent'}, $co{'id'}, "--"
4110                         or next;
4111                 my @difftree = map { chomp; $_ } <$fd>;
4112                 close $fd
4113                         or next;
4114                 print "<item>\n" .
4115                       "<title>" .
4116                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
4117                       "</title>\n" .
4118                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
4119                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4120                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
4121                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
4122                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
4123                       "<content:encoded>" .
4124                       "<![CDATA[\n";
4125                 my $comment = $co{'comment'};
4126                 foreach my $line (@$comment) {
4127                         $line = to_utf8($line);
4128                         print "$line<br/>\n";
4129                 }
4130                 print "<br/>\n";
4131                 foreach my $line (@difftree) {
4132                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
4133                                 next;
4134                         }
4135                         my $file = esc_path(unquote($7));
4136                         $file = to_utf8($file);
4137                         print "$file<br/>\n";
4138                 }
4139                 print "]]>\n" .
4140                       "</content:encoded>\n" .
4141                       "</item>\n";
4142         }
4143         print "</channel></rss>";
4144 }
4145
4146 sub git_opml {
4147         my @list = git_get_projects_list();
4148
4149         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4150         print <<XML;
4151 <?xml version="1.0" encoding="utf-8"?>
4152 <opml version="1.0">
4153 <head>
4154   <title>$site_name OPML Export</title>
4155 </head>
4156 <body>
4157 <outline text="git RSS feeds">
4158 XML
4159
4160         foreach my $pr (@list) {
4161                 my %proj = %$pr;
4162                 my $head = git_get_head_hash($proj{'path'});
4163                 if (!defined $head) {
4164                         next;
4165                 }
4166                 $git_dir = "$projectroot/$proj{'path'}";
4167                 my %co = parse_commit($head);
4168                 if (!%co) {
4169                         next;
4170                 }
4171
4172                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4173                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
4174                 my $html = "$my_url?p=$proj{'path'};a=summary";
4175                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4176         }
4177         print <<XML;
4178 </outline>
4179 </body>
4180 </opml>
4181 XML
4182 }