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