gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # location for temporary files needed for diffs
  35 our $git_temp = "/tmp/gitweb";
  36
  37 # target of the home link on top of all pages
  38 our $home_link = $my_uri || "/";
  39
  40 # string of the home link on top of all pages
  41 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  42
  43 # name of your site or organization to appear in page titles
  44 # replace this with something more descriptive for clearer bookmarks
  45 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  46
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49
  50 # URI of default stylesheet
  51 our $stylesheet = "++GITWEB_CSS++";
  52 # URI of GIT logo
  53 our $logo = "++GITWEB_LOGO++";
  54
  55 # source of projects list
  56 our $projects_list = "++GITWEB_LIST++";
  57
  58 # list of git base URLs used for URL to where fetch project from,
  59 # i.e. full URL is "$git_base_url/$project"
  60 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  61
  62 # default blob_plain mimetype and default charset for text/plain blob
  63 our $default_blob_plain_mimetype = 'text/plain';
  64 our $default_text_plain_charset  = undef;
  65
  66 # file to use for guessing MIME types before trying /etc/mime.types
  67 # (relative to the current git repository)
  68 our $mimetypes_file = undef;
  69
  70 # You define site-wide feature defaults here; override them with
  71 # $GITWEB_CONFIG as necessary.
  72 our %feature = (
  73         # feature => {'sub' => feature-sub, 'override' => allow-override, 'default' => [ default options...]
  74         # if feature is overridable, feature-sub will be called with default options;
  75         # return value indicates if to enable specified feature
  76
  77         'blame' => {
  78                 'sub' => \&feature_blame,
  79                 'override' => 0,
  80                 'default' => [0]},
  81
  82         'snapshot' => {
  83                 'sub' => \&feature_snapshot,
  84                 'override' => 0,
  85                 #         => [content-encoding, suffix, program]
  86                 'default' => ['x-gzip', 'gz', 'gzip']},
  87 );
  88
  89 sub gitweb_check_feature {
  90         my ($name) = @_;
  91         return undef unless exists $feature{$name};
  92         my ($sub, $override, @defaults) = (
  93                 $feature{$name}{'sub'},
  94                 $feature{$name}{'override'},
  95                 @{$feature{$name}{'default'}});
  96         if (!$override) { return @defaults; }
  97         return $sub->(@defaults);
  98 }
  99
 100 # To enable system wide have in $GITWEB_CONFIG
 101 # $feature{'blame'}{'default'} =  [1];
 102 # To have project specific config enable override in  $GITWEB_CONFIG
 103 # $feature{'blame'}{'override'} =  1;
 104 # and in project config gitweb.blame = 0|1;
 105
 106 sub feature_blame {
 107         my ($val) = git_get_project_config('blame', '--bool');
 108
 109         if ($val eq 'true') {
 110                 return 1;
 111         } elsif ($val eq 'false') {
 112                 return 0;
 113         }
 114
 115         return $_[0];
 116 }
 117
 118 # To disable system wide have in $GITWEB_CONFIG
 119 # $feature{'snapshot'}{'default'} =  [undef];
 120 # To have project specific config enable override in  $GITWEB_CONFIG
 121 # $feature{'blame'}{'override'} =  1;
 122 # and in project config  gitweb.snapshot = none|gzip|bzip2
 123
 124 sub feature_snapshot {
 125         my ($ctype, $suffix, $command) = @_;
 126
 127         my ($val) = git_get_project_config('snapshot');
 128
 129         if ($val eq 'gzip') {
 130                 return ('x-gzip', 'gz', 'gzip');
 131         } elsif ($val eq 'bzip2') {
 132                 return ('x-bzip2', 'bz2', 'bzip2');
 133         } elsif ($val eq 'none') {
 134                 return ();
 135         }
 136
 137         return ($ctype, $suffix, $command);
 138 }
 139
 140 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 141 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 142
 143 # version of the core git binary
 144 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 145
 146 $projects_list ||= $projectroot;
 147 if (! -d $git_temp) {
 148         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
 149 }
 150
 151 # ======================================================================
 152 # input validation and dispatch
 153 our $action = $cgi->param('a');
 154 if (defined $action) {
 155         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 156                 die_error(undef, "Invalid action parameter");
 157         }
 158 }
 159
 160 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 161 if (defined $project) {
 162         $project =~ s|^/||;
 163         $project =~ s|/$||;
 164         $project = undef unless $project;
 165 }
 166 if (defined $project) {
 167         if (!validate_input($project)) {
 168                 die_error(undef, "Invalid project parameter");
 169         }
 170         if (!(-d "$projectroot/$project")) {
 171                 die_error(undef, "No such directory");
 172         }
 173         if (!(-e "$projectroot/$project/HEAD")) {
 174                 die_error(undef, "No such project");
 175         }
 176         $ENV{'GIT_DIR'} = "$projectroot/$project";
 177 }
 178
 179 our $file_name = $cgi->param('f');
 180 if (defined $file_name) {
 181         if (!validate_input($file_name)) {
 182                 die_error(undef, "Invalid file parameter");
 183         }
 184 }
 185
 186 our $file_parent = $cgi->param('fp');
 187 if (defined $file_parent) {
 188         if (!validate_input($file_parent)) {
 189                 die_error(undef, "Invalid file parent parameter");
 190         }
 191 }
 192
 193 our $hash = $cgi->param('h');
 194 if (defined $hash) {
 195         if (!validate_input($hash)) {
 196                 die_error(undef, "Invalid hash parameter");
 197         }
 198 }
 199
 200 our $hash_parent = $cgi->param('hp');
 201 if (defined $hash_parent) {
 202         if (!validate_input($hash_parent)) {
 203                 die_error(undef, "Invalid hash parent parameter");
 204         }
 205 }
 206
 207 our $hash_base = $cgi->param('hb');
 208 if (defined $hash_base) {
 209         if (!validate_input($hash_base)) {
 210                 die_error(undef, "Invalid hash base parameter");
 211         }
 212 }
 213
 214 our $hash_parent_base = $cgi->param('hpb');
 215 if (defined $hash_parent_base) {
 216         if (!validate_input($hash_parent_base)) {
 217                 die_error(undef, "Invalid hash parent base parameter");
 218         }
 219 }
 220
 221 our $page = $cgi->param('pg');
 222 if (defined $page) {
 223         if ($page =~ m/[^0-9]$/) {
 224                 die_error(undef, "Invalid page parameter");
 225         }
 226 }
 227
 228 our $searchtext = $cgi->param('s');
 229 if (defined $searchtext) {
 230         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 231                 die_error(undef, "Invalid search parameter");
 232         }
 233         $searchtext = quotemeta $searchtext;
 234 }
 235
 236 # dispatch
 237 my %actions = (
 238         "blame" => \&git_blame2,
 239         "blobdiff" => \&git_blobdiff,
 240         "blobdiff_plain" => \&git_blobdiff_plain,
 241         "blob" => \&git_blob,
 242         "blob_plain" => \&git_blob_plain,
 243         "commitdiff" => \&git_commitdiff,
 244         "commitdiff_plain" => \&git_commitdiff_plain,
 245         "commit" => \&git_commit,
 246         "heads" => \&git_heads,
 247         "history" => \&git_history,
 248         "log" => \&git_log,
 249         "rss" => \&git_rss,
 250         "search" => \&git_search,
 251         "shortlog" => \&git_shortlog,
 252         "summary" => \&git_summary,
 253         "tag" => \&git_tag,
 254         "tags" => \&git_tags,
 255         "tree" => \&git_tree,
 256         "snapshot" => \&git_snapshot,
 257         # those below don't need $project
 258         "opml" => \&git_opml,
 259         "project_list" => \&git_project_list,
 260 );
 261
 262 if (defined $project) {
 263         $action ||= 'summary';
 264 } else {
 265         $action ||= 'project_list';
 266 }
 267 if (!defined($actions{$action})) {
 268         die_error(undef, "Unknown action");
 269 }
 270 $actions{$action}->();
 271 exit;
 272
 273 ## ======================================================================
 274 ## action links
 275
 276 sub href(%) {
 277         my %params = @_;
 278
 279         my @mapping = (
 280                 project => "p",
 281                 action => "a",
 282                 file_name => "f",
 283                 file_parent => "fp",
 284                 hash => "h",
 285                 hash_parent => "hp",
 286                 hash_base => "hb",
 287                 hash_parent_base => "hpb",
 288                 page => "pg",
 289                 searchtext => "s",
 290         );
 291         my %mapping = @mapping;
 292
 293         $params{"project"} ||= $project;
 294
 295         my @result = ();
 296         for (my $i = 0; $i < @mapping; $i += 2) {
 297                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 298                 if (defined $params{$name}) {
 299                         push @result, $symbol . "=" . esc_param($params{$name});
 300                 }
 301         }
 302         return "$my_uri?" . join(';', @result);
 303 }
 304
 305
 306 ## ======================================================================
 307 ## validation, quoting/unquoting and escaping
 308
 309 sub validate_input {
 310         my $input = shift;
 311
 312         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 313                 return $input;
 314         }
 315         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 316                 return undef;
 317         }
 318         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 319                 return undef;
 320         }
 321         return $input;
 322 }
 323
 324 # quote unsafe chars, but keep the slash, even when it's not
 325 # correct, but quoted slashes look too horrible in bookmarks
 326 sub esc_param {
 327         my $str = shift;
 328         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 329         $str =~ s/\+/%2B/g;
 330         $str =~ s/ /\+/g;
 331         return $str;
 332 }
 333
 334 # replace invalid utf8 character with SUBSTITUTION sequence
 335 sub esc_html {
 336         my $str = shift;
 337         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 338         $str = escapeHTML($str);
 339         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 340         return $str;
 341 }
 342
 343 # git may return quoted and escaped filenames
 344 sub unquote {
 345         my $str = shift;
 346         if ($str =~ m/^"(.*)"$/) {
 347                 $str = $1;
 348                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 349         }
 350         return $str;
 351 }
 352
 353 # escape tabs (convert tabs to spaces)
 354 sub untabify {
 355         my $line = shift;
 356
 357         while ((my $pos = index($line, "\t")) != -1) {
 358                 if (my $count = (8 - ($pos % 8))) {
 359                         my $spaces = ' ' x $count;
 360                         $line =~ s/\t/$spaces/;
 361                 }
 362         }
 363
 364         return $line;
 365 }
 366
 367 ## ----------------------------------------------------------------------
 368 ## HTML aware string manipulation
 369
 370 sub chop_str {
 371         my $str = shift;
 372         my $len = shift;
 373         my $add_len = shift || 10;
 374
 375         # allow only $len chars, but don't cut a word if it would fit in $add_len
 376         # if it doesn't fit, cut it if it's still longer than the dots we would add
 377         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 378         my $body = $1;
 379         my $tail = $2;
 380         if (length($tail) > 4) {
 381                 $tail = " ...";
 382                 $body =~ s/&[^;]*$//; # remove chopped character entities
 383         }
 384         return "$body$tail";
 385 }
 386
 387 ## ----------------------------------------------------------------------
 388 ## functions returning short strings
 389
 390 # CSS class for given age value (in seconds)
 391 sub age_class {
 392         my $age = shift;
 393
 394         if ($age < 60*60*2) {
 395                 return "age0";
 396         } elsif ($age < 60*60*24*2) {
 397                 return "age1";
 398         } else {
 399                 return "age2";
 400         }
 401 }
 402
 403 # convert age in seconds to "nn units ago" string
 404 sub age_string {
 405         my $age = shift;
 406         my $age_str;
 407
 408         if ($age > 60*60*24*365*2) {
 409                 $age_str = (int $age/60/60/24/365);
 410                 $age_str .= " years ago";
 411         } elsif ($age > 60*60*24*(365/12)*2) {
 412                 $age_str = int $age/60/60/24/(365/12);
 413                 $age_str .= " months ago";
 414         } elsif ($age > 60*60*24*7*2) {
 415                 $age_str = int $age/60/60/24/7;
 416                 $age_str .= " weeks ago";
 417         } elsif ($age > 60*60*24*2) {
 418                 $age_str = int $age/60/60/24;
 419                 $age_str .= " days ago";
 420         } elsif ($age > 60*60*2) {
 421                 $age_str = int $age/60/60;
 422                 $age_str .= " hours ago";
 423         } elsif ($age > 60*2) {
 424                 $age_str = int $age/60;
 425                 $age_str .= " min ago";
 426         } elsif ($age > 2) {
 427                 $age_str = int $age;
 428                 $age_str .= " sec ago";
 429         } else {
 430                 $age_str .= " right now";
 431         }
 432         return $age_str;
 433 }
 434
 435 # convert file mode in octal to symbolic file mode string
 436 sub mode_str {
 437         my $mode = oct shift;
 438
 439         if (S_ISDIR($mode & S_IFMT)) {
 440                 return 'drwxr-xr-x';
 441         } elsif (S_ISLNK($mode)) {
 442                 return 'lrwxrwxrwx';
 443         } elsif (S_ISREG($mode)) {
 444                 # git cares only about the executable bit
 445                 if ($mode & S_IXUSR) {
 446                         return '-rwxr-xr-x';
 447                 } else {
 448                         return '-rw-r--r--';
 449                 };
 450         } else {
 451                 return '----------';
 452         }
 453 }
 454
 455 # convert file mode in octal to file type string
 456 sub file_type {
 457         my $mode = oct shift;
 458
 459         if (S_ISDIR($mode & S_IFMT)) {
 460                 return "directory";
 461         } elsif (S_ISLNK($mode)) {
 462                 return "symlink";
 463         } elsif (S_ISREG($mode)) {
 464                 return "file";
 465         } else {
 466                 return "unknown";
 467         }
 468 }
 469
 470 ## ----------------------------------------------------------------------
 471 ## functions returning short HTML fragments, or transforming HTML fragments
 472 ## which don't beling to other sections
 473
 474 # format line of commit message or tag comment
 475 sub format_log_line_html {
 476         my $line = shift;
 477
 478         $line = esc_html($line);
 479         $line =~ s/ /&nbsp;/g;
 480         if ($line =~ m/([0-9a-fA-F]{40})/) {
 481                 my $hash_text = $1;
 482                 if (git_get_type($hash_text) eq "commit") {
 483                         my $link =
 484                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 485                                         -class => "text"}, $hash_text);
 486                         $line =~ s/$hash_text/$link/;
 487                 }
 488         }
 489         return $line;
 490 }
 491
 492 # format marker of refs pointing to given object
 493 sub format_ref_marker {
 494         my ($refs, $id) = @_;
 495         my $markers = '';
 496
 497         if (defined $refs->{$id}) {
 498                 foreach my $ref (@{$refs->{$id}}) {
 499                         my ($type, $name) = qw();
 500                         # e.g. tags/v2.6.11 or heads/next
 501                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 502                                 $type = $1;
 503                                 $name = $2;
 504                         } else {
 505                                 $type = "ref";
 506                                 $name = $ref;
 507                         }
 508
 509                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 510                 }
 511         }
 512
 513         if ($markers) {
 514                 return ' <span class="refs">'. $markers . '</span>';
 515         } else {
 516                 return "";
 517         }
 518 }
 519
 520 # format, perhaps shortened and with markers, title line
 521 sub format_subject_html {
 522         my ($long, $short, $href, $extra) = @_;
 523         $extra = '' unless defined($extra);
 524
 525         if (length($short) < length($long)) {
 526                 return $cgi->a({-href => $href, -class => "list subject",
 527                                 -title => $long},
 528                        esc_html($short) . $extra);
 529         } else {
 530                 return $cgi->a({-href => $href, -class => "list subject"},
 531                        esc_html($long)  . $extra);
 532         }
 533 }
 534
 535 sub format_diff_line {
 536         my $line = shift;
 537         my $char = substr($line, 0, 1);
 538         my $diff_class = "";
 539
 540         chomp $line;
 541
 542         if ($char eq '+') {
 543                 $diff_class = " add";
 544         } elsif ($char eq "-") {
 545                 $diff_class = " rem";
 546         } elsif ($char eq "@") {
 547                 $diff_class = " chunk_header";
 548         } elsif ($char eq "\\") {
 549                 $diff_class = " incomplete";
 550         }
 551         $line = untabify($line);
 552         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 553 }
 554
 555 ## ----------------------------------------------------------------------
 556 ## git utility subroutines, invoking git commands
 557
 558 # get HEAD ref of given project as hash
 559 sub git_get_head_hash {
 560         my $project = shift;
 561         my $oENV = $ENV{'GIT_DIR'};
 562         my $retval = undef;
 563         $ENV{'GIT_DIR'} = "$projectroot/$project";
 564         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 565                 my $head = <$fd>;
 566                 close $fd;
 567                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 568                         $retval = $1;
 569                 }
 570         }
 571         if (defined $oENV) {
 572                 $ENV{'GIT_DIR'} = $oENV;
 573         }
 574         return $retval;
 575 }
 576
 577 # get type of given object
 578 sub git_get_type {
 579         my $hash = shift;
 580
 581         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 582         my $type = <$fd>;
 583         close $fd or return;
 584         chomp $type;
 585         return $type;
 586 }
 587
 588 sub git_get_project_config {
 589         my ($key, $type) = @_;
 590
 591         return unless ($key);
 592         $key =~ s/^gitweb\.//;
 593         return if ($key =~ m/\W/);
 594
 595         my @x = ($GIT, 'repo-config');
 596         if (defined $type) { push @x, $type; }
 597         push @x, "--get";
 598         push @x, "gitweb.$key";
 599         my $val = qx(@x);
 600         chomp $val;
 601         return ($val);
 602 }
 603
 604 # get hash of given path at given ref
 605 sub git_get_hash_by_path {
 606         my $base = shift;
 607         my $path = shift || return undef;
 608
 609         my $tree = $base;
 610
 611         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 612                 or die_error(undef, "Open git-ls-tree failed");
 613         my $line = <$fd>;
 614         close $fd or return undef;
 615
 616         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 617         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 618         return $3;
 619 }
 620
 621 ## ......................................................................
 622 ## git utility functions, directly accessing git repository
 623
 624 # assumes that PATH is not symref
 625 sub git_get_hash_by_ref {
 626         my $path = shift;
 627
 628         open my $fd, "$projectroot/$path" or return undef;
 629         my $head = <$fd>;
 630         close $fd;
 631         chomp $head;
 632         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 633                 return $head;
 634         }
 635 }
 636
 637 sub git_get_project_description {
 638         my $path = shift;
 639
 640         open my $fd, "$projectroot/$path/description" or return undef;
 641         my $descr = <$fd>;
 642         close $fd;
 643         chomp $descr;
 644         return $descr;
 645 }
 646
 647 sub git_get_project_url_list {
 648         my $path = shift;
 649
 650         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 651         my @git_project_url_list = map { chomp; $_ } <$fd>;
 652         close $fd;
 653
 654         return wantarray ? @git_project_url_list : \@git_project_url_list;
 655 }
 656
 657 sub git_get_projects_list {
 658         my @list;
 659
 660         if (-d $projects_list) {
 661                 # search in directory
 662                 my $dir = $projects_list;
 663                 opendir my ($dh), $dir or return undef;
 664                 while (my $dir = readdir($dh)) {
 665                         if (-e "$projectroot/$dir/HEAD") {
 666                                 my $pr = {
 667                                         path => $dir,
 668                                 };
 669                                 push @list, $pr
 670                         }
 671                 }
 672                 closedir($dh);
 673         } elsif (-f $projects_list) {
 674                 # read from file(url-encoded):
 675                 # 'git%2Fgit.git Linus+Torvalds'
 676                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 677                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 678                 open my ($fd), $projects_list or return undef;
 679                 while (my $line = <$fd>) {
 680                         chomp $line;
 681                         my ($path, $owner) = split ' ', $line;
 682                         $path = unescape($path);
 683                         $owner = unescape($owner);
 684                         if (!defined $path) {
 685                                 next;
 686                         }
 687                         if (-e "$projectroot/$path/HEAD") {
 688                                 my $pr = {
 689                                         path => $path,
 690                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 691                                 };
 692                                 push @list, $pr
 693                         }
 694                 }
 695                 close $fd;
 696         }
 697         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 698         return @list;
 699 }
 700
 701 sub git_get_project_owner {
 702         my $project = shift;
 703         my $owner;
 704
 705         return undef unless $project;
 706
 707         # read from file (url-encoded):
 708         # 'git%2Fgit.git Linus+Torvalds'
 709         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 710         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 711         if (-f $projects_list) {
 712                 open (my $fd , $projects_list);
 713                 while (my $line = <$fd>) {
 714                         chomp $line;
 715                         my ($pr, $ow) = split ' ', $line;
 716                         $pr = unescape($pr);
 717                         $ow = unescape($ow);
 718                         if ($pr eq $project) {
 719                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 720                                 last;
 721                         }
 722                 }
 723                 close $fd;
 724         }
 725         if (!defined $owner) {
 726                 $owner = get_file_owner("$projectroot/$project");
 727         }
 728
 729         return $owner;
 730 }
 731
 732 sub git_get_references {
 733         my $type = shift || "";
 734         my %refs;
 735         my $fd;
 736         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 737         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 738         if (-f "$projectroot/$project/info/refs") {
 739                 open $fd, "$projectroot/$project/info/refs"
 740                         or return;
 741         } else {
 742                 open $fd, "-|", $GIT, "ls-remote", "."
 743                         or return;
 744         }
 745
 746         while (my $line = <$fd>) {
 747                 chomp $line;
 748                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 749                         if (defined $refs{$1}) {
 750                                 push @{$refs{$1}}, $2;
 751                         } else {
 752                                 $refs{$1} = [ $2 ];
 753                         }
 754                 }
 755         }
 756         close $fd or return;
 757         return \%refs;
 758 }
 759
 760 sub git_get_following_references {
 761         my $hash = shift || return undef;
 762         my $type = shift;
 763         my $base = shift || $hash_base || "HEAD";
 764
 765         my $refs = git_get_references($type);
 766         open my $fd, "-|", $GIT, "rev-list", $base
 767                 or return undef;
 768         my @commits = map { chomp; $_ } <$fd>;
 769         close $fd
 770                 or return undef;
 771
 772         my @reflist;
 773         my $lastref;
 774
 775         foreach my $commit (@commits) {
 776                 foreach my $ref (@{$refs->{$commit}}) {
 777                         $lastref = $ref;
 778                         push @reflist, $lastref;
 779                 }
 780                 if ($commit eq $hash) {
 781                         last;
 782                 }
 783         }
 784
 785         return wantarray ? @reflist : $lastref;
 786 }
 787
 788 sub git_get_preceding_references {
 789         my $hash = shift || return undef;
 790         my $type = shift;
 791
 792         my $refs = git_get_references($type);
 793         open my $fd, "-|", $GIT, "rev-list", $hash
 794                 or return undef;
 795         my @commits = map { chomp; $_ } <$fd>;
 796         close $fd
 797                 or return undef;
 798
 799         my @reflist;
 800
 801         foreach my $commit (@commits) {
 802                 foreach my $ref (@{$refs->{$commit}}) {
 803                         return $ref unless wantarray;
 804                         push @reflist, $ref;
 805                 }
 806         }
 807
 808         return @reflist;
 809 }
 810
 811 sub git_get_rev_name_tags {
 812         my $hash = shift || return undef;
 813
 814         open my $fd, "-|", $GIT, "name-rev", "--tags", $hash
 815                 or return;
 816         my $name_rev = <$fd>;
 817         close $fd;
 818
 819         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 820                 return $1;
 821         } else {
 822                 # catches also '$hash undefined' output
 823                 return undef;
 824         }
 825 }
 826
 827 ## ----------------------------------------------------------------------
 828 ## parse to hash functions
 829
 830 sub parse_date {
 831         my $epoch = shift;
 832         my $tz = shift || "-0000";
 833
 834         my %date;
 835         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 836         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 837         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 838         $date{'hour'} = $hour;
 839         $date{'minute'} = $min;
 840         $date{'mday'} = $mday;
 841         $date{'day'} = $days[$wday];
 842         $date{'month'} = $months[$mon];
 843         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 844                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 845         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 846                              $mday, $months[$mon], $hour ,$min;
 847
 848         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 849         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 850         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 851         $date{'hour_local'} = $hour;
 852         $date{'minute_local'} = $min;
 853         $date{'tz_local'} = $tz;
 854         return %date;
 855 }
 856
 857 sub parse_tag {
 858         my $tag_id = shift;
 859         my %tag;
 860         my @comment;
 861
 862         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 863         $tag{'id'} = $tag_id;
 864         while (my $line = <$fd>) {
 865                 chomp $line;
 866                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 867                         $tag{'object'} = $1;
 868                 } elsif ($line =~ m/^type (.+)$/) {
 869                         $tag{'type'} = $1;
 870                 } elsif ($line =~ m/^tag (.+)$/) {
 871                         $tag{'name'} = $1;
 872                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 873                         $tag{'author'} = $1;
 874                         $tag{'epoch'} = $2;
 875                         $tag{'tz'} = $3;
 876                 } elsif ($line =~ m/--BEGIN/) {
 877                         push @comment, $line;
 878                         last;
 879                 } elsif ($line eq "") {
 880                         last;
 881                 }
 882         }
 883         push @comment, <$fd>;
 884         $tag{'comment'} = \@comment;
 885         close $fd or return;
 886         if (!defined $tag{'name'}) {
 887                 return
 888         };
 889         return %tag
 890 }
 891
 892 sub parse_commit {
 893         my $commit_id = shift;
 894         my $commit_text = shift;
 895
 896         my @commit_lines;
 897         my %co;
 898
 899         if (defined $commit_text) {
 900                 @commit_lines = @$commit_text;
 901         } else {
 902                 $/ = "\0";
 903                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 904                         or return;
 905                 @commit_lines = split '\n', <$fd>;
 906                 close $fd or return;
 907                 $/ = "\n";
 908                 pop @commit_lines;
 909         }
 910         my $header = shift @commit_lines;
 911         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 912                 return;
 913         }
 914         ($co{'id'}, my @parents) = split ' ', $header;
 915         $co{'parents'} = \@parents;
 916         $co{'parent'} = $parents[0];
 917         while (my $line = shift @commit_lines) {
 918                 last if $line eq "\n";
 919                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 920                         $co{'tree'} = $1;
 921                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 922                         $co{'author'} = $1;
 923                         $co{'author_epoch'} = $2;
 924                         $co{'author_tz'} = $3;
 925                         if ($co{'author'} =~ m/^([^<]+) </) {
 926                                 $co{'author_name'} = $1;
 927                         } else {
 928                                 $co{'author_name'} = $co{'author'};
 929                         }
 930                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 931                         $co{'committer'} = $1;
 932                         $co{'committer_epoch'} = $2;
 933                         $co{'committer_tz'} = $3;
 934                         $co{'committer_name'} = $co{'committer'};
 935                         $co{'committer_name'} =~ s/ <.*//;
 936                 }
 937         }
 938         if (!defined $co{'tree'}) {
 939                 return;
 940         };
 941
 942         foreach my $title (@commit_lines) {
 943                 $title =~ s/^    //;
 944                 if ($title ne "") {
 945                         $co{'title'} = chop_str($title, 80, 5);
 946                         # remove leading stuff of merges to make the interesting part visible
 947                         if (length($title) > 50) {
 948                                 $title =~ s/^Automatic //;
 949                                 $title =~ s/^merge (of|with) /Merge ... /i;
 950                                 if (length($title) > 50) {
 951                                         $title =~ s/(http|rsync):\/\///;
 952                                 }
 953                                 if (length($title) > 50) {
 954                                         $title =~ s/(master|www|rsync)\.//;
 955                                 }
 956                                 if (length($title) > 50) {
 957                                         $title =~ s/kernel.org:?//;
 958                                 }
 959                                 if (length($title) > 50) {
 960                                         $title =~ s/\/pub\/scm//;
 961                                 }
 962                         }
 963                         $co{'title_short'} = chop_str($title, 50, 5);
 964                         last;
 965                 }
 966         }
 967         # remove added spaces
 968         foreach my $line (@commit_lines) {
 969                 $line =~ s/^    //;
 970         }
 971         $co{'comment'} = \@commit_lines;
 972
 973         my $age = time - $co{'committer_epoch'};
 974         $co{'age'} = $age;
 975         $co{'age_string'} = age_string($age);
 976         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 977         if ($age > 60*60*24*7*2) {
 978                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 979                 $co{'age_string_age'} = $co{'age_string'};
 980         } else {
 981                 $co{'age_string_date'} = $co{'age_string'};
 982                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 983         }
 984         return %co;
 985 }
 986
 987 # parse ref from ref_file, given by ref_id, with given type
 988 sub parse_ref {
 989         my $ref_file = shift;
 990         my $ref_id = shift;
 991         my $type = shift || git_get_type($ref_id);
 992         my %ref_item;
 993
 994         $ref_item{'type'} = $type;
 995         $ref_item{'id'} = $ref_id;
 996         $ref_item{'epoch'} = 0;
 997         $ref_item{'age'} = "unknown";
 998         if ($type eq "tag") {
 999                 my %tag = parse_tag($ref_id);
1000                 $ref_item{'comment'} = $tag{'comment'};
1001                 if ($tag{'type'} eq "commit") {
1002                         my %co = parse_commit($tag{'object'});
1003                         $ref_item{'epoch'} = $co{'committer_epoch'};
1004                         $ref_item{'age'} = $co{'age_string'};
1005                 } elsif (defined($tag{'epoch'})) {
1006                         my $age = time - $tag{'epoch'};
1007                         $ref_item{'epoch'} = $tag{'epoch'};
1008                         $ref_item{'age'} = age_string($age);
1009                 }
1010                 $ref_item{'reftype'} = $tag{'type'};
1011                 $ref_item{'name'} = $tag{'name'};
1012                 $ref_item{'refid'} = $tag{'object'};
1013         } elsif ($type eq "commit"){
1014                 my %co = parse_commit($ref_id);
1015                 $ref_item{'reftype'} = "commit";
1016                 $ref_item{'name'} = $ref_file;
1017                 $ref_item{'title'} = $co{'title'};
1018                 $ref_item{'refid'} = $ref_id;
1019                 $ref_item{'epoch'} = $co{'committer_epoch'};
1020                 $ref_item{'age'} = $co{'age_string'};
1021         } else {
1022                 $ref_item{'reftype'} = $type;
1023                 $ref_item{'name'} = $ref_file;
1024                 $ref_item{'refid'} = $ref_id;
1025         }
1026
1027         return %ref_item;
1028 }
1029
1030 # parse line of git-diff-tree "raw" output
1031 sub parse_difftree_raw_line {
1032         my $line = shift;
1033         my %res;
1034
1035         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1036         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1037         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1038                 $res{'from_mode'} = $1;
1039                 $res{'to_mode'} = $2;
1040                 $res{'from_id'} = $3;
1041                 $res{'to_id'} = $4;
1042                 $res{'status'} = $5;
1043                 $res{'similarity'} = $6;
1044                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1045                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1046                 } else {
1047                         $res{'file'} = unquote($7);
1048                 }
1049         }
1050         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1051         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1052         #       $res{'commit'} = $1;
1053         #}
1054
1055         return wantarray ? %res : \%res;
1056 }
1057
1058 ## ......................................................................
1059 ## parse to array of hashes functions
1060
1061 sub git_get_refs_list {
1062         my $ref_dir = shift;
1063         my @reflist;
1064
1065         my @refs;
1066         my $pfxlen = length("$projectroot/$project/$ref_dir");
1067         File::Find::find(sub {
1068                 return if (/^\./);
1069                 if (-f $_) {
1070                         push @refs, substr($File::Find::name, $pfxlen + 1);
1071                 }
1072         }, "$projectroot/$project/$ref_dir");
1073
1074         foreach my $ref_file (@refs) {
1075                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
1076                 my $type = git_get_type($ref_id) || next;
1077                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1078
1079                 push @reflist, \%ref_item;
1080         }
1081         # sort refs by age
1082         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1083         return \@reflist;
1084 }
1085
1086 ## ----------------------------------------------------------------------
1087 ## filesystem-related functions
1088
1089 sub get_file_owner {
1090         my $path = shift;
1091
1092         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1093         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1094         if (!defined $gcos) {
1095                 return undef;
1096         }
1097         my $owner = $gcos;
1098         $owner =~ s/[,;].*$//;
1099         return decode("utf8", $owner, Encode::FB_DEFAULT);
1100 }
1101
1102 ## ......................................................................
1103 ## mimetype related functions
1104
1105 sub mimetype_guess_file {
1106         my $filename = shift;
1107         my $mimemap = shift;
1108         -r $mimemap or return undef;
1109
1110         my %mimemap;
1111         open(MIME, $mimemap) or return undef;
1112         while (<MIME>) {
1113                 next if m/^#/; # skip comments
1114                 my ($mime, $exts) = split(/\t+/);
1115                 if (defined $exts) {
1116                         my @exts = split(/\s+/, $exts);
1117                         foreach my $ext (@exts) {
1118                                 $mimemap{$ext} = $mime;
1119                         }
1120                 }
1121         }
1122         close(MIME);
1123
1124         $filename =~ /\.(.*?)$/;
1125         return $mimemap{$1};
1126 }
1127
1128 sub mimetype_guess {
1129         my $filename = shift;
1130         my $mime;
1131         $filename =~ /\./ or return undef;
1132
1133         if ($mimetypes_file) {
1134                 my $file = $mimetypes_file;
1135                 if ($file !~ m!^/!) { # if it is relative path
1136                         # it is relative to project
1137                         $file = "$projectroot/$project/$file";
1138                 }
1139                 $mime = mimetype_guess_file($filename, $file);
1140         }
1141         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1142         return $mime;
1143 }
1144
1145 sub blob_mimetype {
1146         my $fd = shift;
1147         my $filename = shift;
1148
1149         if ($filename) {
1150                 my $mime = mimetype_guess($filename);
1151                 $mime and return $mime;
1152         }
1153
1154         # just in case
1155         return $default_blob_plain_mimetype unless $fd;
1156
1157         if (-T $fd) {
1158                 return 'text/plain' .
1159                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1160         } elsif (! $filename) {
1161                 return 'application/octet-stream';
1162         } elsif ($filename =~ m/\.png$/i) {
1163                 return 'image/png';
1164         } elsif ($filename =~ m/\.gif$/i) {
1165                 return 'image/gif';
1166         } elsif ($filename =~ m/\.jpe?g$/i) {
1167                 return 'image/jpeg';
1168         } else {
1169                 return 'application/octet-stream';
1170         }
1171 }
1172
1173 ## ======================================================================
1174 ## functions printing HTML: header, footer, error page
1175
1176 sub git_header_html {
1177         my $status = shift || "200 OK";
1178         my $expires = shift;
1179
1180         my $title = "$site_name git";
1181         if (defined $project) {
1182                 $title .= " - $project";
1183                 if (defined $action) {
1184                         $title .= "/$action";
1185                         if (defined $file_name) {
1186                                 $title .= " - $file_name";
1187                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1188                                         $title .= "/";
1189                                 }
1190                         }
1191                 }
1192         }
1193         my $content_type;
1194         # require explicit support from the UA if we are to send the page as
1195         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1196         # we have to do this because MSIE sometimes globs '*/*', pretending to
1197         # support xhtml+xml but choking when it gets what it asked for.
1198         if (defined $cgi->http('HTTP_ACCEPT') &&
1199             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1200             $cgi->Accept('application/xhtml+xml') != 0) {
1201                 $content_type = 'application/xhtml+xml';
1202         } else {
1203                 $content_type = 'text/html';
1204         }
1205         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1206                            -status=> $status, -expires => $expires);
1207         print <<EOF;
1208 <?xml version="1.0" encoding="utf-8"?>
1209 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1210 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1211 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1212 <!-- git core binaries version $git_version -->
1213 <head>
1214 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1215 <meta name="generator" content="gitweb/$version git/$git_version"/>
1216 <meta name="robots" content="index, nofollow"/>
1217 <title>$title</title>
1218 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1219 EOF
1220         if (defined $project) {
1221                 printf('<link rel="alternate" title="%s log" '.
1222                        'href="%s" type="application/rss+xml"/>'."\n",
1223                        esc_param($project), href(action=>"rss"));
1224         }
1225
1226         print "</head>\n" .
1227               "<body>\n" .
1228               "<div class=\"page_header\">\n" .
1229               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1230               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1231               "</a>\n";
1232         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1233         if (defined $project) {
1234                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1235                 if (defined $action) {
1236                         print " / $action";
1237                 }
1238                 print "\n";
1239                 if (!defined $searchtext) {
1240                         $searchtext = "";
1241                 }
1242                 my $search_hash;
1243                 if (defined $hash_base) {
1244                         $search_hash = $hash_base;
1245                 } elsif (defined $hash) {
1246                         $search_hash = $hash;
1247                 } else {
1248                         $search_hash = "HEAD";
1249                 }
1250                 $cgi->param("a", "search");
1251                 $cgi->param("h", $search_hash);
1252                 print $cgi->startform(-method => "get", -action => $my_uri) .
1253                       "<div class=\"search\">\n" .
1254                       $cgi->hidden(-name => "p") . "\n" .
1255                       $cgi->hidden(-name => "a") . "\n" .
1256                       $cgi->hidden(-name => "h") . "\n" .
1257                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1258                       "</div>" .
1259                       $cgi->end_form() . "\n";
1260         }
1261         print "</div>\n";
1262 }
1263
1264 sub git_footer_html {
1265         print "<div class=\"page_footer\">\n";
1266         if (defined $project) {
1267                 my $descr = git_get_project_description($project);
1268                 if (defined $descr) {
1269                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1270                 }
1271                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1272         } else {
1273                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1274         }
1275         print "</div>\n" .
1276               "</body>\n" .
1277               "</html>";
1278 }
1279
1280 sub die_error {
1281         my $status = shift || "403 Forbidden";
1282         my $error = shift || "Malformed query, file missing or permission denied";
1283
1284         git_header_html($status);
1285         print <<EOF;
1286 <div class="page_body">
1287 <br /><br />
1288 $status - $error
1289 <br />
1290 </div>
1291 EOF
1292         git_footer_html();
1293         exit;
1294 }
1295
1296 ## ----------------------------------------------------------------------
1297 ## functions printing or outputting HTML: navigation
1298
1299 sub git_print_page_nav {
1300         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1301         $extra = '' if !defined $extra; # pager or formats
1302
1303         my @navs = qw(summary shortlog log commit commitdiff tree);
1304         if ($suppress) {
1305                 @navs = grep { $_ ne $suppress } @navs;
1306         }
1307
1308         my %arg = map { $_ => {action=>$_} } @navs;
1309         if (defined $head) {
1310                 for (qw(commit commitdiff)) {
1311                         $arg{$_}{hash} = $head;
1312                 }
1313                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1314                         for (qw(shortlog log)) {
1315                                 $arg{$_}{hash} = $head;
1316                         }
1317                 }
1318         }
1319         $arg{tree}{hash} = $treehead if defined $treehead;
1320         $arg{tree}{hash_base} = $treebase if defined $treebase;
1321
1322         print "<div class=\"page_nav\">\n" .
1323                 (join " | ",
1324                  map { $_ eq $current ?
1325                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1326                  } @navs);
1327         print "<br/>\n$extra<br/>\n" .
1328               "</div>\n";
1329 }
1330
1331 sub format_paging_nav {
1332         my ($action, $hash, $head, $page, $nrevs) = @_;
1333         my $paging_nav;
1334
1335
1336         if ($hash ne $head || $page) {
1337                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1338         } else {
1339                 $paging_nav .= "HEAD";
1340         }
1341
1342         if ($page > 0) {
1343                 $paging_nav .= " &sdot; " .
1344                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1345                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1346         } else {
1347                 $paging_nav .= " &sdot; prev";
1348         }
1349
1350         if ($nrevs >= (100 * ($page+1)-1)) {
1351                 $paging_nav .= " &sdot; " .
1352                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1353                                  -accesskey => "n", -title => "Alt-n"}, "next");
1354         } else {
1355                 $paging_nav .= " &sdot; next";
1356         }
1357
1358         return $paging_nav;
1359 }
1360
1361 ## ......................................................................
1362 ## functions printing or outputting HTML: div
1363
1364 sub git_print_header_div {
1365         my ($action, $title, $hash, $hash_base) = @_;
1366         my %args = ();
1367
1368         $args{action} = $action;
1369         $args{hash} = $hash if $hash;
1370         $args{hash_base} = $hash_base if $hash_base;
1371
1372         print "<div class=\"header\">\n" .
1373               $cgi->a({-href => href(%args), -class => "title"},
1374               $title ? $title : $action) .
1375               "\n</div>\n";
1376 }
1377
1378 sub git_print_page_path {
1379         my $name = shift;
1380         my $type = shift;
1381         my $hb = shift;
1382
1383         if (!defined $name) {
1384                 print "<div class=\"page_path\">/</div>\n";
1385         } elsif (defined $type && $type eq 'blob') {
1386                 print "<div class=\"page_path\">";
1387                 if (defined $hb) {
1388                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1389                                                      hash_base=>$hb)},
1390                                       esc_html($name));
1391                 } else {
1392                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
1393                                       esc_html($name));
1394                 }
1395                 print "<br/></div>\n";
1396         } else {
1397                 print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
1398         }
1399 }
1400
1401 sub git_print_log {
1402         my $log = shift;
1403
1404         # remove leading empty lines
1405         while (defined $log->[0] && $log->[0] eq "") {
1406                 shift @$log;
1407         }
1408
1409         # print log
1410         my $signoff = 0;
1411         my $empty = 0;
1412         foreach my $line (@$log) {
1413                 # print only one empty line
1414                 # do not print empty line after signoff
1415                 if ($line eq "") {
1416                         next if ($empty || $signoff);
1417                         $empty = 1;
1418                 } else {
1419                         $empty = 0;
1420                 }
1421                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1422                         $signoff = 1;
1423                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1424                 } else {
1425                         $signoff = 0;
1426                         print format_log_line_html($line) . "<br/>\n";
1427                 }
1428         }
1429 }
1430
1431 sub git_print_simplified_log {
1432         my $log = shift;
1433         my $remove_title = shift;
1434
1435         shift @$log if $remove_title;
1436         # remove leading empty lines
1437         while (defined $log->[0] && $log->[0] eq "") {
1438                 shift @$log;
1439         }
1440
1441         # simplify and print log
1442         my $empty = 0;
1443         foreach my $line (@$log) {
1444                 # remove signoff lines
1445                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1446                         next;
1447                 }
1448                 # print only one empty line
1449                 if ($line eq "") {
1450                         next if $empty;
1451                         $empty = 1;
1452                 } else {
1453                         $empty = 0;
1454                 }
1455                 print format_log_line_html($line) . "<br/>\n";
1456         }
1457         # end with single empty line
1458         print "<br/>\n" unless $empty;
1459 }
1460
1461 ## ......................................................................
1462 ## functions printing large fragments of HTML
1463
1464 sub git_difftree_body {
1465         my ($difftree, $hash, $parent) = @_;
1466
1467         print "<div class=\"list_head\">\n";
1468         if ($#{$difftree} > 10) {
1469                 print(($#{$difftree} + 1) . " files changed:\n");
1470         }
1471         print "</div>\n";
1472
1473         print "<table class=\"diff_tree\">\n";
1474         my $alternate = 0;
1475         foreach my $line (@{$difftree}) {
1476                 my %diff = parse_difftree_raw_line($line);
1477
1478                 if ($alternate) {
1479                         print "<tr class=\"dark\">\n";
1480                 } else {
1481                         print "<tr class=\"light\">\n";
1482                 }
1483                 $alternate ^= 1;
1484
1485                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1486                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1487                 if ($diff{'to_mode'} ne ('0' x 6)) {
1488                         $to_mode_oct = oct $diff{'to_mode'};
1489                         if (S_ISREG($to_mode_oct)) { # only for regular file
1490                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1491                         }
1492                         $to_file_type = file_type($diff{'to_mode'});
1493                 }
1494                 if ($diff{'from_mode'} ne ('0' x 6)) {
1495                         $from_mode_oct = oct $diff{'from_mode'};
1496                         if (S_ISREG($to_mode_oct)) { # only for regular file
1497                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1498                         }
1499                         $from_file_type = file_type($diff{'from_mode'});
1500                 }
1501
1502                 if ($diff{'status'} eq "A") { # created
1503                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1504                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1505                         $mode_chng   .= "]</span>";
1506                         print "<td>" .
1507                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1508                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1509                                       -class => "list"}, esc_html($diff{'file'})) .
1510                               "</td>\n" .
1511                               "<td>$mode_chng</td>\n" .
1512                               "<td class=\"link\">" .
1513                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1514                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1515                                       "blob") .
1516                               "</td>\n";
1517
1518                 } elsif ($diff{'status'} eq "D") { # deleted
1519                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1520                         print "<td>" .
1521                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1522                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1523                                        -class => "list"}, esc_html($diff{'file'})) .
1524                               "</td>\n" .
1525                               "<td>$mode_chng</td>\n" .
1526                               "<td class=\"link\">" .
1527                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1528                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1529                                       "blob") .
1530                               " | " .
1531                               $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1532                                                      file_name=>$diff{'file'})},\
1533                                       "history") .
1534                               "</td>\n";
1535
1536                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1537                         my $mode_chnge = "";
1538                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1539                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1540                                 if ($from_file_type != $to_file_type) {
1541                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1542                                 }
1543                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1544                                         if ($from_mode_str && $to_mode_str) {
1545                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1546                                         } elsif ($to_mode_str) {
1547                                                 $mode_chnge .= " mode: $to_mode_str";
1548                                         }
1549                                 }
1550                                 $mode_chnge .= "]</span>\n";
1551                         }
1552                         print "<td>";
1553                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1554                                 print $cgi->a({-href => href(action=>"blobdiff",
1555                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1556                                                              hash_base=>$hash, hash_parent_base=>$parent,
1557                                                              file_name=>$diff{'file'}),
1558                                               -class => "list"}, esc_html($diff{'file'}));
1559                         } else { # only mode changed
1560                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1561                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1562                                               -class => "list"}, esc_html($diff{'file'}));
1563                         }
1564                         print "</td>\n" .
1565                               "<td>$mode_chnge</td>\n" .
1566                               "<td class=\"link\">" .
1567                                 $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1568                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1569                                         "blob");
1570                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1571                                 print " | " .
1572                                         $cgi->a({-href => href(action=>"blobdiff",
1573                                                                hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1574                                                                hash_base=>$hash, hash_parent_base=>$parent,
1575                                                                file_name=>$diff{'file'})},
1576                                                 "diff");
1577                         }
1578                         print " | " .
1579                                 $cgi->a({-href => href(action=>"history",
1580                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1581                                         "history");
1582                         print "</td>\n";
1583
1584                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1585                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1586                         my $nstatus = $status_name{$diff{'status'}};
1587                         my $mode_chng = "";
1588                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1589                                 # mode also for directories, so we cannot use $to_mode_str
1590                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1591                         }
1592                         print "<td>" .
1593                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1594                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1595                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1596                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1597                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1598                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1599                                       -class => "list"}, esc_html($diff{'from_file'})) .
1600                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1601                               "<td class=\"link\">" .
1602                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1603                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1604                                       "blob");
1605                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1606                                 print " | " .
1607                                         $cgi->a({-href => href(action=>"blobdiff",
1608                                                                hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1609                                                                hash_base=>$hash, hash_parent_base=>$parent,
1610                                                                file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1611                                                 "diff");
1612                         }
1613                         print "</td>\n";
1614
1615                 } # we should not encounter Unmerged (U) or Unknown (X) status
1616                 print "</tr>\n";
1617         }
1618         print "</table>\n";
1619 }
1620
1621 sub git_patchset_body {
1622         my ($fd, $difftree, $hash, $hash_parent) = @_;
1623
1624         my $patch_idx = 0;
1625         my $in_header = 0;
1626         my $patch_found = 0;
1627         my $diffinfo;
1628
1629         print "<div class=\"patchset\">\n";
1630
1631         LINE:
1632         while (my $patch_line @$fd>) {
1633                 chomp $patch_line;
1634
1635                 if ($patch_line =~ m/^diff /) { # "git diff" header
1636                         # beginning of patch (in patchset)
1637                         if ($patch_found) {
1638                                 # close previous patch
1639                                 print "</div>\n"; # class="patch"
1640                         } else {
1641                                 # first patch in patchset
1642                                 $patch_found = 1;
1643                         }
1644                         print "<div class=\"patch\">\n";
1645
1646                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1647                                 $diffinfo = $difftree->[$patch_idx];
1648                         } else {
1649                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1650                         }
1651                         $patch_idx++;
1652
1653                         # for now, no extended header, hence we skip empty patches
1654                         # companion to  next LINE if $in_header;
1655                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1656                                 $in_header = 1;
1657                                 next LINE;
1658                         }
1659
1660                         if ($diffinfo->{'status'} eq "A") { # added
1661                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1662                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1663                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1664                                               $diffinfo->{'to_id'}) . "(new)" .
1665                                       "</div>\n"; # class="diff_info"
1666
1667                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1668                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1669                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1670                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1671                                               $diffinfo->{'from_id'}) . "(deleted)" .
1672                                       "</div>\n"; # class="diff_info"
1673
1674                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1675                                  $diffinfo->{'status'} eq "C") { # copied
1676                                 print "<div class=\"diff_info\">" .
1677                                       file_type($diffinfo->{'from_mode'}) . ":" .
1678                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1679                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1680                                               $diffinfo->{'from_id'}) .
1681                                       " -> " .
1682                                       file_type($diffinfo->{'to_mode'}) . ":" .
1683                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1684                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1685                                               $diffinfo->{'to_id'});
1686                                 print "</div>\n"; # class="diff_info"
1687
1688                         } else { # modified, mode changed, ...
1689                                 print "<div class=\"diff_info\">" .
1690                                       file_type($diffinfo->{'from_mode'}) . ":" .
1691                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1692                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1693                                               $diffinfo->{'from_id'}) .
1694                                       " -> " .
1695                                       file_type($diffinfo->{'to_mode'}) . ":" .
1696                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1697                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1698                                               $diffinfo->{'to_id'});
1699                                 print "</div>\n"; # class="diff_info"
1700                         }
1701
1702                         #print "<div class=\"diff extended_header\">\n";
1703                         $in_header = 1;
1704                         next LINE;
1705                 } # start of patch in patchset
1706
1707
1708                 if ($in_header && $patch_line =~ m/^---/) {
1709                         #print "</div>\n"; # class="diff extended_header"
1710                         $in_header = 0;
1711
1712                         my $file = $diffinfo->{'from_file'};
1713                         $file  ||= $diffinfo->{'file'};
1714                         $patch_line =~ s|a/[0-9a-fA-F]{40}|a/$file|g;
1715                         print "<div class=\"diff from_file\">" . esc_html($patch_line) . "</div>\n";
1716
1717                         $patch_line = <$fd>;
1718                         chomp $patch_line;
1719
1720                         #$patch_line =~ m/^+++/;
1721                         $file    = $diffinfo->{'to_file'};
1722                         $file  ||= $diffinfo->{'file'};
1723                         $patch_line =~ s|b/[0-9a-fA-F]{40}|b/$file|g;
1724                         print "<div class=\"diff to_file\">" . esc_html($patch_line) . "</div>\n";
1725
1726                         next LINE;
1727                 }
1728                 next LINE if $in_header;
1729
1730                 print format_diff_line($patch_line);
1731         }
1732         print "</div>\n" if $patch_found; # class="patch"
1733
1734         print "</div>\n"; # class="patchset"
1735 }
1736
1737 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1738
1739 sub git_shortlog_body {
1740         # uses global variable $project
1741         my ($revlist, $from, $to, $refs, $extra) = @_;
1742
1743         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1744         my $have_snapshot = (defined $ctype && defined $suffix);
1745
1746         $from = 0 unless defined $from;
1747         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1748
1749         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1750         my $alternate = 0;
1751         for (my $i = $from; $i <= $to; $i++) {
1752                 my $commit = $revlist->[$i];
1753                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1754                 my $ref = format_ref_marker($refs, $commit);
1755                 my %co = parse_commit($commit);
1756                 if ($alternate) {
1757                         print "<tr class=\"dark\">\n";
1758                 } else {
1759                         print "<tr class=\"light\">\n";
1760                 }
1761                 $alternate ^= 1;
1762                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1763                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1764                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1765                       "<td>";
1766                 print format_subject_html($co{'title'}, $co{'title_short'},
1767                                           href(action=>"commit", hash=>$commit), $ref);
1768                 print "</td>\n" .
1769                       "<td class=\"link\">" .
1770                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1771                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1772                 if ($have_snapshot) {
1773                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1774                 }
1775                 print "</td>\n" .
1776                       "</tr>\n";
1777         }
1778         if (defined $extra) {
1779                 print "<tr>\n" .
1780                       "<td colspan=\"4\">$extra</td>\n" .
1781                       "</tr>\n";
1782         }
1783         print "</table>\n";
1784 }
1785
1786 sub git_history_body {
1787         # Warning: assumes constant type (blob or tree) during history
1788         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1789
1790         print "<table class=\"history\" cellspacing=\"0\">\n";
1791         my $alternate = 0;
1792         while (my $line = <$fd>) {
1793                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1794                         next;
1795                 }
1796
1797                 my $commit = $1;
1798                 my %co = parse_commit($commit);
1799                 if (!%co) {
1800                         next;
1801                 }
1802
1803                 my $ref = format_ref_marker($refs, $commit);
1804
1805                 if ($alternate) {
1806                         print "<tr class=\"dark\">\n";
1807                 } else {
1808                         print "<tr class=\"light\">\n";
1809                 }
1810                 $alternate ^= 1;
1811                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1812                       # shortlog uses      chop_str($co{'author_name'}, 10)
1813                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1814                       "<td>";
1815                 # originally git_history used chop_str($co{'title'}, 50)
1816                 print format_subject_html($co{'title'}, $co{'title_short'},
1817                                           href(action=>"commit", hash=>$commit), $ref);
1818                 print "</td>\n" .
1819                       "<td class=\"link\">" .
1820                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1821                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1822                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1823
1824                 if ($ftype eq 'blob') {
1825                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1826                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1827                         if (defined $blob_current && defined $blob_parent &&
1828                                         $blob_current ne $blob_parent) {
1829                                 print " | " .
1830                                         $cgi->a({-href => href(action=>"blobdiff",
1831                                                                hash=>$blob_current, hash_parent=>$blob_parent,
1832                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
1833                                                                file_name=>$file_name)},
1834                                                 "diff to current");
1835                         }
1836                 }
1837                 print "</td>\n" .
1838                       "</tr>\n";
1839         }
1840         if (defined $extra) {
1841                 print "<tr>\n" .
1842                       "<td colspan=\"4\">$extra</td>\n" .
1843                       "</tr>\n";
1844         }
1845         print "</table>\n";
1846 }
1847
1848 sub git_tags_body {
1849         # uses global variable $project
1850         my ($taglist, $from, $to, $extra) = @_;
1851         $from = 0 unless defined $from;
1852         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1853
1854         print "<table class=\"tags\" cellspacing=\"0\">\n";
1855         my $alternate = 0;
1856         for (my $i = $from; $i <= $to; $i++) {
1857                 my $entry = $taglist->[$i];
1858                 my %tag = %$entry;
1859                 my $comment_lines = $tag{'comment'};
1860                 my $comment = shift @$comment_lines;
1861                 my $comment_short;
1862                 if (defined $comment) {
1863                         $comment_short = chop_str($comment, 30, 5);
1864                 }
1865                 if ($alternate) {
1866                         print "<tr class=\"dark\">\n";
1867                 } else {
1868                         print "<tr class=\"light\">\n";
1869                 }
1870                 $alternate ^= 1;
1871                 print "<td><i>$tag{'age'}</i></td>\n" .
1872                       "<td>" .
1873                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1874                                -class => "list name"}, esc_html($tag{'name'})) .
1875                       "</td>\n" .
1876                       "<td>";
1877                 if (defined $comment) {
1878                         print format_subject_html($comment, $comment_short,
1879                                                   href(action=>"tag", hash=>$tag{'id'}));
1880                 }
1881                 print "</td>\n" .
1882                       "<td class=\"selflink\">";
1883                 if ($tag{'type'} eq "tag") {
1884                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1885                 } else {
1886                         print "&nbsp;";
1887                 }
1888                 print "</td>\n" .
1889                       "<td class=\"link\">" . " | " .
1890                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1891                 if ($tag{'reftype'} eq "commit") {
1892                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1893                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1894                 } elsif ($tag{'reftype'} eq "blob") {
1895                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1896                 }
1897                 print "</td>\n" .
1898                       "</tr>";
1899         }
1900         if (defined $extra) {
1901                 print "<tr>\n" .
1902                       "<td colspan=\"5\">$extra</td>\n" .
1903                       "</tr>\n";
1904         }
1905         print "</table>\n";
1906 }
1907
1908 sub git_heads_body {
1909         # uses global variable $project
1910         my ($taglist, $head, $from, $to, $extra) = @_;
1911         $from = 0 unless defined $from;
1912         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1913
1914         print "<table class=\"heads\" cellspacing=\"0\">\n";
1915         my $alternate = 0;
1916         for (my $i = $from; $i <= $to; $i++) {
1917                 my $entry = $taglist->[$i];
1918                 my %tag = %$entry;
1919                 my $curr = $tag{'id'} eq $head;
1920                 if ($alternate) {
1921                         print "<tr class=\"dark\">\n";
1922                 } else {
1923                         print "<tr class=\"light\">\n";
1924                 }
1925                 $alternate ^= 1;
1926                 print "<td><i>$tag{'age'}</i></td>\n" .
1927                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1928                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1929                                -class => "list name"},esc_html($tag{'name'})) .
1930                       "</td>\n" .
1931                       "<td class=\"link\">" .
1932                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1933                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1934                       "</td>\n" .
1935                       "</tr>";
1936         }
1937         if (defined $extra) {
1938                 print "<tr>\n" .
1939                       "<td colspan=\"3\">$extra</td>\n" .
1940                       "</tr>\n";
1941         }
1942         print "</table>\n";
1943 }
1944
1945 ## ----------------------------------------------------------------------
1946 ## functions printing large fragments, format as one of arguments
1947
1948 sub git_diff_print {
1949         my $from = shift;
1950         my $from_name = shift;
1951         my $to = shift;
1952         my $to_name = shift;
1953         my $format = shift || "html";
1954
1955         my $from_tmp = "/dev/null";
1956         my $to_tmp = "/dev/null";
1957         my $pid = $$;
1958
1959         # create tmp from-file
1960         if (defined $from) {
1961                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1962                 open my $fd2, "> $from_tmp";
1963                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1964                 my @file = <$fd>;
1965                 print $fd2 @file;
1966                 close $fd2;
1967                 close $fd;
1968         }
1969
1970         # create tmp to-file
1971         if (defined $to) {
1972                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1973                 open my $fd2, "> $to_tmp";
1974                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1975                 my @file = <$fd>;
1976                 print $fd2 @file;
1977                 close $fd2;
1978                 close $fd;
1979         }
1980
1981         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1982         if ($format eq "plain") {
1983                 undef $/;
1984                 print <$fd>;
1985                 $/ = "\n";
1986         } else {
1987                 while (my $line = <$fd>) {
1988                         chomp $line;
1989                         my $char = substr($line, 0, 1);
1990                         my $diff_class = "";
1991                         if ($char eq '+') {
1992                                 $diff_class = " add";
1993                         } elsif ($char eq "-") {
1994                                 $diff_class = " rem";
1995                         } elsif ($char eq "@") {
1996                                 $diff_class = " chunk_header";
1997                         } elsif ($char eq "\\") {
1998                                 # skip errors
1999                                 next;
2000                         }
2001                         $line = untabify($line);
2002                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
2003                 }
2004         }
2005         close $fd;
2006
2007         if (defined $from) {
2008                 unlink($from_tmp);
2009         }
2010         if (defined $to) {
2011                 unlink($to_tmp);
2012         }
2013 }
2014
2015
2016 ## ======================================================================
2017 ## ======================================================================
2018 ## actions
2019
2020 sub git_project_list {
2021         my $order = $cgi->param('o');
2022         if (defined $order && $order !~ m/project|descr|owner|age/) {
2023                 die_error(undef, "Unknown order parameter");
2024         }
2025
2026         my @list = git_get_projects_list();
2027         my @projects;
2028         if (!@list) {
2029                 die_error(undef, "No projects found");
2030         }
2031         foreach my $pr (@list) {
2032                 my $head = git_get_head_hash($pr->{'path'});
2033                 if (!defined $head) {
2034                         next;
2035                 }
2036                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
2037                 my %co = parse_commit($head);
2038                 if (!%co) {
2039                         next;
2040                 }
2041                 $pr->{'commit'} = \%co;
2042                 if (!defined $pr->{'descr'}) {
2043                         my $descr = git_get_project_description($pr->{'path'}) || "";
2044                         $pr->{'descr'} = chop_str($descr, 25, 5);
2045                 }
2046                 if (!defined $pr->{'owner'}) {
2047                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2048                 }
2049                 push @projects, $pr;
2050         }
2051
2052         git_header_html();
2053         if (-f $home_text) {
2054                 print "<div class=\"index_include\">\n";
2055                 open (my $fd, $home_text);
2056                 print <$fd>;
2057                 close $fd;
2058                 print "</div>\n";
2059         }
2060         print "<table class=\"project_list\">\n" .
2061               "<tr>\n";
2062         $order ||= "project";
2063         if ($order eq "project") {
2064                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2065                 print "<th>Project</th>\n";
2066         } else {
2067                 print "<th>" .
2068                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
2069                                -class => "header"}, "Project") .
2070                       "</th>\n";
2071         }
2072         if ($order eq "descr") {
2073                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2074                 print "<th>Description</th>\n";
2075         } else {
2076                 print "<th>" .
2077                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
2078                                -class => "header"}, "Description") .
2079                       "</th>\n";
2080         }
2081         if ($order eq "owner") {
2082                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2083                 print "<th>Owner</th>\n";
2084         } else {
2085                 print "<th>" .
2086                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
2087                                -class => "header"}, "Owner") .
2088                       "</th>\n";
2089         }
2090         if ($order eq "age") {
2091                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2092                 print "<th>Last Change</th>\n";
2093         } else {
2094                 print "<th>" .
2095                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
2096                                -class => "header"}, "Last Change") .
2097                       "</th>\n";
2098         }
2099         print "<th></th>\n" .
2100               "</tr>\n";
2101         my $alternate = 0;
2102         foreach my $pr (@projects) {
2103                 if ($alternate) {
2104                         print "<tr class=\"dark\">\n";
2105                 } else {
2106                         print "<tr class=\"light\">\n";
2107                 }
2108                 $alternate ^= 1;
2109                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2110                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2111                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2112                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2113                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2114                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2115                       "<td class=\"link\">" .
2116                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2117                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2118                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2119                       "</td>\n" .
2120                       "</tr>\n";
2121         }
2122         print "</table>\n";
2123         git_footer_html();
2124 }
2125
2126 sub git_summary {
2127         my $descr = git_get_project_description($project) || "none";
2128         my $head = git_get_head_hash($project);
2129         my %co = parse_commit($head);
2130         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2131
2132         my $owner = git_get_project_owner($project);
2133
2134         my $refs = git_get_references();
2135         git_header_html();
2136         git_print_page_nav('summary','', $head);
2137
2138         print "<div class=\"title\">&nbsp;</div>\n";
2139         print "<table cellspacing=\"0\">\n" .
2140               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2141               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2142               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2143         # use per project git URL list in $projectroot/$project/cloneurl
2144         # or make project git URL from git base URL and project name
2145         my $url_tag = "URL";
2146         my @url_list = git_get_project_url_list($project);
2147         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2148         foreach my $git_url (@url_list) {
2149                 next unless $git_url;
2150                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2151                 $url_tag = "";
2152         }
2153         print "</table>\n";
2154
2155         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
2156                 or die_error(undef, "Open git-rev-list failed");
2157         my @revlist = map { chomp; $_ } <$fd>;
2158         close $fd;
2159         git_print_header_div('shortlog');
2160         git_shortlog_body(\@revlist, 0, 15, $refs,
2161                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2162
2163         my $taglist = git_get_refs_list("refs/tags");
2164         if (defined @$taglist) {
2165                 git_print_header_div('tags');
2166                 git_tags_body($taglist, 0, 15,
2167                               $cgi->a({-href => href(action=>"tags")}, "..."));
2168         }
2169
2170         my $headlist = git_get_refs_list("refs/heads");
2171         if (defined @$headlist) {
2172                 git_print_header_div('heads');
2173                 git_heads_body($headlist, $head, 0, 15,
2174                                $cgi->a({-href => href(action=>"heads")}, "..."));
2175         }
2176
2177         git_footer_html();
2178 }
2179
2180 sub git_tag {
2181         my $head = git_get_head_hash($project);
2182         git_header_html();
2183         git_print_page_nav('','', $head,undef,$head);
2184         my %tag = parse_tag($hash);
2185         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2186         print "<div class=\"title_text\">\n" .
2187               "<table cellspacing=\"0\">\n" .
2188               "<tr>\n" .
2189               "<td>object</td>\n" .
2190               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2191                                $tag{'object'}) . "</td>\n" .
2192               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2193                                               $tag{'type'}) . "</td>\n" .
2194               "</tr>\n";
2195         if (defined($tag{'author'})) {
2196                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2197                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2198                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2199                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2200                         "</td></tr>\n";
2201         }
2202         print "</table>\n\n" .
2203               "</div>\n";
2204         print "<div class=\"page_body\">";
2205         my $comment = $tag{'comment'};
2206         foreach my $line (@$comment) {
2207                 print esc_html($line) . "<br/>\n";
2208         }
2209         print "</div>\n";
2210         git_footer_html();
2211 }
2212
2213 sub git_blame2 {
2214         my $fd;
2215         my $ftype;
2216
2217         if (!gitweb_check_feature('blame')) {
2218                 die_error('403 Permission denied', "Permission denied");
2219         }
2220         die_error('404 Not Found', "File name not defined") if (!$file_name);
2221         $hash_base ||= git_get_head_hash($project);
2222         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2223         my %co = parse_commit($hash_base)
2224                 or die_error(undef, "Reading commit failed");
2225         if (!defined $hash) {
2226                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2227                         or die_error(undef, "Error looking up file");
2228         }
2229         $ftype = git_get_type($hash);
2230         if ($ftype !~ "blob") {
2231                 die_error("400 Bad Request", "Object is not a blob");
2232         }
2233         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
2234                 or die_error(undef, "Open git-blame failed");
2235         git_header_html();
2236         my $formats_nav =
2237                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2238                         "blob") .
2239                 " | " .
2240                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2241                         "head");
2242         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2243         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2244         git_print_page_path($file_name, $ftype, $hash_base);
2245         my @rev_color = (qw(light2 dark2));
2246         my $num_colors = scalar(@rev_color);
2247         my $current_color = 0;
2248         my $last_rev;
2249         print <<HTML;
2250 <div class="page_body">
2251 <table class="blame">
2252 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2253 HTML
2254         while (<$fd>) {
2255                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2256                 my $full_rev = $1;
2257                 my $rev = substr($full_rev, 0, 8);
2258                 my $lineno = $2;
2259                 my $data = $3;
2260
2261                 if (!defined $last_rev) {
2262                         $last_rev = $full_rev;
2263                 } elsif ($last_rev ne $full_rev) {
2264                         $last_rev = $full_rev;
2265                         $current_color = ++$current_color % $num_colors;
2266                 }
2267                 print "<tr class=\"$rev_color[$current_color]\">\n";
2268                 print "<td class=\"sha1\">" .
2269                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2270                                 esc_html($rev)) . "</td>\n";
2271                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2272                       esc_html($lineno) . "</a></td>\n";
2273                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2274                 print "</tr>\n";
2275         }
2276         print "</table>\n";
2277         print "</div>";
2278         close $fd
2279                 or print "Reading blob failed\n";
2280         git_footer_html();
2281 }
2282
2283 sub git_blame {
2284         my $fd;
2285
2286         if (!gitweb_check_feature('blame')) {
2287                 die_error('403 Permission denied', "Permission denied");
2288         }
2289         die_error('404 Not Found', "File name not defined") if (!$file_name);
2290         $hash_base ||= git_get_head_hash($project);
2291         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2292         my %co = parse_commit($hash_base)
2293                 or die_error(undef, "Reading commit failed");
2294         if (!defined $hash) {
2295                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2296                         or die_error(undef, "Error lookup file");
2297         }
2298         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2299                 or die_error(undef, "Open git-annotate failed");
2300         git_header_html();
2301         my $formats_nav =
2302                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2303                         "blob") .
2304                 " | " .
2305                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2306                         "head");
2307         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2308         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2309         git_print_page_path($file_name, 'blob', $hash_base);
2310         print "<div class=\"page_body\">\n";
2311         print <<HTML;
2312 <table class="blame">
2313   <tr>
2314     <th>Commit</th>
2315     <th>Age</th>
2316     <th>Author</th>
2317     <th>Line</th>
2318     <th>Data</th>
2319   </tr>
2320 HTML
2321         my @line_class = (qw(light dark));
2322         my $line_class_len = scalar (@line_class);
2323         my $line_class_num = $#line_class;
2324         while (my $line = <$fd>) {
2325                 my $long_rev;
2326                 my $short_rev;
2327                 my $author;
2328                 my $time;
2329                 my $lineno;
2330                 my $data;
2331                 my $age;
2332                 my $age_str;
2333                 my $age_class;
2334
2335                 chomp $line;
2336                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2337
2338                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
2339                         $long_rev = $1;
2340                         $author   = $2;
2341                         $time     = $3;
2342                         $lineno   = $4;
2343                         $data     = $5;
2344                 } else {
2345                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2346                         next;
2347                 }
2348                 $short_rev  = substr ($long_rev, 0, 8);
2349                 $age        = time () - $time;
2350                 $age_str    = age_string ($age);
2351                 $age_str    =~ s/ /&nbsp;/g;
2352                 $age_class  = age_class($age);
2353                 $author     = esc_html ($author);
2354                 $author     =~ s/ /&nbsp;/g;
2355
2356                 $data = untabify($data);
2357                 $data = esc_html ($data);
2358
2359                 print <<HTML;
2360   <tr class="$line_class[$line_class_num]">
2361     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2362     <td class="$age_class">$age_str</td>
2363     <td>$author</td>
2364     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2365     <td class="pre">$data</td>
2366   </tr>
2367 HTML
2368         } # while (my $line = <$fd>)
2369         print "</table>\n\n";
2370         close $fd
2371                 or print "Reading blob failed.\n";
2372         print "</div>";
2373         git_footer_html();
2374 }
2375
2376 sub git_tags {
2377         my $head = git_get_head_hash($project);
2378         git_header_html();
2379         git_print_page_nav('','', $head,undef,$head);
2380         git_print_header_div('summary', $project);
2381
2382         my $taglist = git_get_refs_list("refs/tags");
2383         if (defined @$taglist) {
2384                 git_tags_body($taglist);
2385         }
2386         git_footer_html();
2387 }
2388
2389 sub git_heads {
2390         my $head = git_get_head_hash($project);
2391         git_header_html();
2392         git_print_page_nav('','', $head,undef,$head);
2393         git_print_header_div('summary', $project);
2394
2395         my $taglist = git_get_refs_list("refs/heads");
2396         if (defined @$taglist) {
2397                 git_heads_body($taglist, $head);
2398         }
2399         git_footer_html();
2400 }
2401
2402 sub git_blob_plain {
2403         if (!defined $hash) {
2404                 if (defined $file_name) {
2405                         my $base = $hash_base || git_get_head_hash($project);
2406                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2407                                 or die_error(undef, "Error lookup file");
2408                 } else {
2409                         die_error(undef, "No file name defined");
2410                 }
2411         }
2412         my $type = shift;
2413         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2414                 or die_error(undef, "Couldn't cat $file_name, $hash");
2415
2416         $type ||= blob_mimetype($fd, $file_name);
2417
2418         # save as filename, even when no $file_name is given
2419         my $save_as = "$hash";
2420         if (defined $file_name) {
2421                 $save_as = $file_name;
2422         } elsif ($type =~ m/^text\//) {
2423                 $save_as .= '.txt';
2424         }
2425
2426         print $cgi->header(-type => "$type",
2427                            -content_disposition => "inline; filename=\"$save_as\"");
2428         undef $/;
2429         binmode STDOUT, ':raw';
2430         print <$fd>;
2431         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2432         $/ = "\n";
2433         close $fd;
2434 }
2435
2436 sub git_blob {
2437         if (!defined $hash) {
2438                 if (defined $file_name) {
2439                         my $base = $hash_base || git_get_head_hash($project);
2440                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2441                                 or die_error(undef, "Error lookup file");
2442                 } else {
2443                         die_error(undef, "No file name defined");
2444                 }
2445         }
2446         my $have_blame = gitweb_check_feature('blame');
2447         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2448                 or die_error(undef, "Couldn't cat $file_name, $hash");
2449         my $mimetype = blob_mimetype($fd, $file_name);
2450         if ($mimetype !~ m/^text\//) {
2451                 close $fd;
2452                 return git_blob_plain($mimetype);
2453         }
2454         git_header_html();
2455         my $formats_nav = '';
2456         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2457                 if (defined $file_name) {
2458                         if ($have_blame) {
2459                                 $formats_nav .=
2460                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2461                                                                hash=>$hash, file_name=>$file_name)},
2462                                                 "blame") .
2463                                         " | ";
2464                         }
2465                         $formats_nav .=
2466                                 $cgi->a({-href => href(action=>"blob_plain",
2467                                                        hash=>$hash, file_name=>$file_name)},
2468                                         "plain") .
2469                                 " | " .
2470                                 $cgi->a({-href => href(action=>"blob",
2471                                                        hash_base=>"HEAD", file_name=>$file_name)},
2472                                         "head");
2473                 } else {
2474                         $formats_nav .=
2475                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2476                 }
2477                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2478                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2479         } else {
2480                 print "<div class=\"page_nav\">\n" .
2481                       "<br/><br/></div>\n" .
2482                       "<div class=\"title\">$hash</div>\n";
2483         }
2484         git_print_page_path($file_name, "blob", $hash_base);
2485         print "<div class=\"page_body\">\n";
2486         my $nr;
2487         while (my $line = <$fd>) {
2488                 chomp $line;
2489                 $nr++;
2490                 $line = untabify($line);
2491                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2492                        $nr, $nr, $nr, esc_html($line);
2493         }
2494         close $fd
2495                 or print "Reading blob failed.\n";
2496         print "</div>";
2497         git_footer_html();
2498 }
2499
2500 sub git_tree {
2501         if (!defined $hash) {
2502                 $hash = git_get_head_hash($project);
2503                 if (defined $file_name) {
2504                         my $base = $hash_base || $hash;
2505                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2506                 }
2507                 if (!defined $hash_base) {
2508                         $hash_base = $hash;
2509                 }
2510         }
2511         $/ = "\0";
2512         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2513                 or die_error(undef, "Open git-ls-tree failed");
2514         my @entries = map { chomp; $_ } <$fd>;
2515         close $fd or die_error(undef, "Reading tree failed");
2516         $/ = "\n";
2517
2518         my $refs = git_get_references();
2519         my $ref = format_ref_marker($refs, $hash_base);
2520         git_header_html();
2521         my %base_key = ();
2522         my $base = "";
2523         my $have_blame = gitweb_check_feature('blame');
2524         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2525                 $base_key{hash_base} = $hash_base;
2526                 git_print_page_nav('tree','', $hash_base);
2527                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2528         } else {
2529                 print "<div class=\"page_nav\">\n";
2530                 print "<br/><br/></div>\n";
2531                 print "<div class=\"title\">$hash</div>\n";
2532         }
2533         if (defined $file_name) {
2534                 $base = esc_html("$file_name/");
2535         }
2536         git_print_page_path($file_name, 'tree', $hash_base);
2537         print "<div class=\"page_body\">\n";
2538         print "<table cellspacing=\"0\">\n";
2539         my $alternate = 0;
2540         foreach my $line (@entries) {
2541                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2542                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2543                 my $t_mode = $1;
2544                 my $t_type = $2;
2545                 my $t_hash = $3;
2546                 my $t_name = validate_input($4);
2547                 if ($alternate) {
2548                         print "<tr class=\"dark\">\n";
2549                 } else {
2550                         print "<tr class=\"light\">\n";
2551                 }
2552                 $alternate ^= 1;
2553                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2554                 if ($t_type eq "blob") {
2555                         print "<td class=\"list\">" .
2556                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key),
2557                                       -class => "list"}, esc_html($t_name)) .
2558                               "</td>\n" .
2559                               "<td class=\"link\">" .
2560                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2561                                       "blob");
2562                         if ($have_blame) {
2563                                 print " | " .
2564                                         $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2565                                                 "blame");
2566                         }
2567                         print " | " .
2568                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2569                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2570                                       "history") .
2571                               " | " .
2572                               $cgi->a({-href => href(action=>"blob_plain",
2573                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2574                                       "raw") .
2575                               "</td>\n";
2576                 } elsif ($t_type eq "tree") {
2577                         print "<td class=\"list\">" .
2578                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2579                                       esc_html($t_name)) .
2580                               "</td>\n" .
2581                               "<td class=\"link\">" .
2582                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2583                                       "tree") .
2584                               " | " .
2585                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")},
2586                                       "history") .
2587                               "</td>\n";
2588                 }
2589                 print "</tr>\n";
2590         }
2591         print "</table>\n" .
2592               "</div>";
2593         git_footer_html();
2594 }
2595
2596 sub git_snapshot {
2597
2598         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2599         my $have_snapshot = (defined $ctype && defined $suffix);
2600         if (!$have_snapshot) {
2601                 die_error('403 Permission denied', "Permission denied");
2602         }
2603
2604         if (!defined $hash) {
2605                 $hash = git_get_head_hash($project);
2606         }
2607
2608         my $filename = basename($project) . "-$hash.tar.$suffix";
2609
2610         print $cgi->header(-type => 'application/x-tar',
2611                            -content_encoding => $ctype,
2612                            -content_disposition => "inline; filename=\"$filename\"",
2613                            -status => '200 OK');
2614
2615         open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
2616                 die_error(undef, "Execute git-tar-tree failed.");
2617         binmode STDOUT, ':raw';
2618         print <$fd>;
2619         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2620         close $fd;
2621
2622 }
2623
2624 sub git_log {
2625         my $head = git_get_head_hash($project);
2626         if (!defined $hash) {
2627                 $hash = $head;
2628         }
2629         if (!defined $page) {
2630                 $page = 0;
2631         }
2632         my $refs = git_get_references();
2633
2634         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2635         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2636                 or die_error(undef, "Open git-rev-list failed");
2637         my @revlist = map { chomp; $_ } <$fd>;
2638         close $fd;
2639
2640         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2641
2642         git_header_html();
2643         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2644
2645         if (!@revlist) {
2646                 my %co = parse_commit($hash);
2647
2648                 git_print_header_div('summary', $project);
2649                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2650         }
2651         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2652                 my $commit = $revlist[$i];
2653                 my $ref = format_ref_marker($refs, $commit);
2654                 my %co = parse_commit($commit);
2655                 next if !%co;
2656                 my %ad = parse_date($co{'author_epoch'});
2657                 git_print_header_div('commit',
2658                                "<span class=\"age\">$co{'age_string'}</span>" .
2659                                esc_html($co{'title'}) . $ref,
2660                                $commit);
2661                 print "<div class=\"title_text\">\n" .
2662                       "<div class=\"log_link\">\n" .
2663                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2664                       " | " .
2665                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2666                       "<br/>\n" .
2667                       "</div>\n" .
2668                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2669                       "</div>\n";
2670
2671                 print "<div class=\"log_body\">\n";
2672                 git_print_simplified_log($co{'comment'});
2673                 print "</div>\n";
2674         }
2675         git_footer_html();
2676 }
2677
2678 sub git_commit {
2679         my %co = parse_commit($hash);
2680         if (!%co) {
2681                 die_error(undef, "Unknown commit object");
2682         }
2683         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2684         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2685
2686         my $parent = $co{'parent'};
2687         if (!defined $parent) {
2688                 $parent = "--root";
2689         }
2690         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2691                 or die_error(undef, "Open git-diff-tree failed");
2692         my @difftree = map { chomp; $_ } <$fd>;
2693         close $fd or die_error(undef, "Reading git-diff-tree failed");
2694
2695         # non-textual hash id's can be cached
2696         my $expires;
2697         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2698                 $expires = "+1d";
2699         }
2700         my $refs = git_get_references();
2701         my $ref = format_ref_marker($refs, $co{'id'});
2702
2703         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2704         my $have_snapshot = (defined $ctype && defined $suffix);
2705
2706         my $formats_nav = '';
2707         if (defined $file_name && defined $co{'parent'}) {
2708                 my $parent = $co{'parent'};
2709                 $formats_nav .=
2710                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2711                                 "blame");
2712         }
2713         git_header_html(undef, $expires);
2714         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2715                            $hash, $co{'tree'}, $hash,
2716                            $formats_nav);
2717
2718         if (defined $co{'parent'}) {
2719                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2720         } else {
2721                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2722         }
2723         print "<div class=\"title_text\">\n" .
2724               "<table cellspacing=\"0\">\n";
2725         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2726               "<tr>" .
2727               "<td></td><td> $ad{'rfc2822'}";
2728         if ($ad{'hour_local'} < 6) {
2729                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2730                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2731         } else {
2732                 printf(" (%02d:%02d %s)",
2733                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2734         }
2735         print "</td>" .
2736               "</tr>\n";
2737         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2738         print "<tr><td></td><td> $cd{'rfc2822'}" .
2739               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2740               "</td></tr>\n";
2741         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2742         print "<tr>" .
2743               "<td>tree</td>" .
2744               "<td class=\"sha1\">" .
2745               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2746                        class => "list"}, $co{'tree'}) .
2747               "</td>" .
2748               "<td class=\"link\">" .
2749               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2750                       "tree");
2751         if ($have_snapshot) {
2752                 print " | " .
2753                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2754         }
2755         print "</td>" .
2756               "</tr>\n";
2757         my $parents = $co{'parents'};
2758         foreach my $par (@$parents) {
2759                 print "<tr>" .
2760                       "<td>parent</td>" .
2761                       "<td class=\"sha1\">" .
2762                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2763                                class => "list"}, $par) .
2764                       "</td>" .
2765                       "<td class=\"link\">" .
2766                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2767                       " | " .
2768                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2769                       "</td>" .
2770                       "</tr>\n";
2771         }
2772         print "</table>".
2773               "</div>\n";
2774
2775         print "<div class=\"page_body\">\n";
2776         git_print_log($co{'comment'});
2777         print "</div>\n";
2778
2779         git_difftree_body(\@difftree, $hash, $parent);
2780
2781         git_footer_html();
2782 }
2783
2784 sub git_blobdiff {
2785         mkdir($git_temp, 0700);
2786         git_header_html();
2787         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2788                 my $formats_nav =
2789                         $cgi->a({-href => href(action=>"blobdiff_plain",
2790                                                hash=>$hash, hash_parent=>$hash_parent,
2791                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
2792                                                file_name=>$file_name, file_parent=>$file_parent)},
2793                                 "plain");
2794                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2795                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2796         } else {
2797                 print <<HTML;
2798 <div class="page_nav"><br/><br/></div>
2799 <div class="title">$hash vs $hash_parent</div>
2800 HTML
2801         }
2802         git_print_page_path($file_name, "blob", $hash_base);
2803         print "<div class=\"page_body\">\n" .
2804               "<div class=\"diff_info\">blob:" .
2805               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent,
2806                                      hash_base=>$hash_parent_base, file_name=>($file_parent || $file_name))},
2807                       $hash_parent) .
2808               " -> blob:" .
2809               $cgi->a({-href => href(action=>"blob", hash=>$hash,
2810                                      hash_base=>$hash_base, file_name=>$file_name)},
2811                       $hash) .
2812               "</div>\n";
2813         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2814         print "</div>"; # page_body
2815         git_footer_html();
2816 }
2817
2818 sub git_blobdiff_plain {
2819         mkdir($git_temp, 0700);
2820         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2821         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2822 }
2823
2824 sub git_commitdiff {
2825         my $format = shift || 'html';
2826         my %co = parse_commit($hash);
2827         if (!%co) {
2828                 die_error(undef, "Unknown commit object");
2829         }
2830         if (!defined $hash_parent) {
2831                 $hash_parent = $co{'parent'} || '--root';
2832         }
2833
2834         # read commitdiff
2835         my $fd;
2836         my @difftree;
2837         if ($format eq 'html') {
2838                 open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C',
2839                         "--patch-with-raw", "--full-index", $hash_parent, $hash
2840                         or die_error(undef, "Open git-diff-tree failed");
2841
2842                 while (chomp(my $line = <$fd>)) {
2843                         # empty line ends raw part of diff-tree output
2844                         last unless $line;
2845                         push @difftree, $line;
2846                 }
2847
2848         } elsif ($format eq 'plain') {
2849                 open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-B', $hash_parent, $hash
2850                         or die_error(undef, "Open git-diff-tree failed");
2851
2852         } else {
2853                 die_error(undef, "Unknown commitdiff format");
2854         }
2855
2856         # non-textual hash id's can be cached
2857         my $expires;
2858         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2859                 $expires = "+1d";
2860         }
2861
2862         # write commit message
2863         if ($format eq 'html') {
2864                 my $refs = git_get_references();
2865                 my $ref = format_ref_marker($refs, $co{'id'});
2866                 my $formats_nav =
2867                         $cgi->a({-href => href(action=>"commitdiff_plain",
2868                                                hash=>$hash, hash_parent=>$hash_parent)},
2869                                 "plain");
2870
2871                 git_header_html(undef, $expires);
2872                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2873                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2874                 print "<div class=\"page_body\">\n";
2875                 print "<div class=\"log\">\n";
2876                 git_print_simplified_log($co{'comment'}, 1); # skip title
2877                 print "</div>\n"; # class="log"
2878
2879         } elsif ($format eq 'plain') {
2880                 my $refs = git_get_references("tags");
2881                 my $tagname = git_get_rev_name_tags($hash);
2882                 my $filename = basename($project) . "-$hash.patch";
2883
2884                 print $cgi->header(
2885                         -type => 'text/plain',
2886                         -charset => 'utf-8',
2887                         -expires => $expires,
2888                         -content_disposition => qq(inline; filename="$filename"));
2889                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2890                 print <<TEXT;
2891 From: $co{'author'}
2892 Date: $ad{'rfc2822'} ($ad{'tz_local'})
2893 Subject: $co{'title'}
2894 TEXT
2895                 print "X-Git-Tag: $tagname\n" if $tagname;
2896                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
2897
2898                 foreach my $line (@{$co{'comment'}}) {
2899                         print "$line\n";
2900                 }
2901                 print "---\n\n";
2902         }
2903
2904         # write patch
2905         if ($format eq 'html') {
2906                 #git_difftree_body(\@difftree, $hash, $hash_parent);
2907                 #print "<br/>\n";
2908
2909                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
2910                 close $fd;
2911                 print "</div>\n"; # class="page_body"
2912                 git_footer_html();
2913
2914         } elsif ($format eq 'plain') {
2915                 local $/ = undef;
2916                 print <$fd>;
2917                 close $fd
2918                         or print "Reading git-diff-tree failed\n";
2919         }
2920 }
2921
2922 sub git_commitdiff_plain {
2923         git_commitdiff('plain');
2924 }
2925
2926 sub git_history {
2927         if (!defined $hash_base) {
2928                 $hash_base = git_get_head_hash($project);
2929         }
2930         my $ftype;
2931         my %co = parse_commit($hash_base);
2932         if (!%co) {
2933                 die_error(undef, "Unknown commit object");
2934         }
2935         my $refs = git_get_references();
2936         git_header_html();
2937         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2938         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2939         if (!defined $hash && defined $file_name) {
2940                 $hash = git_get_hash_by_path($hash_base, $file_name);
2941         }
2942         if (defined $hash) {
2943                 $ftype = git_get_type($hash);
2944         }
2945         git_print_page_path($file_name, $ftype, $hash_base);
2946
2947         open my $fd, "-|",
2948                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2949         git_history_body($fd, $refs, $hash_base, $ftype);
2950
2951         close $fd;
2952         git_footer_html();
2953 }
2954
2955 sub git_search {
2956         if (!defined $searchtext) {
2957                 die_error(undef, "Text field empty");
2958         }
2959         if (!defined $hash) {
2960                 $hash = git_get_head_hash($project);
2961         }
2962         my %co = parse_commit($hash);
2963         if (!%co) {
2964                 die_error(undef, "Unknown commit object");
2965         }
2966         # pickaxe may take all resources of your box and run for several minutes
2967         # with every query - so decide by yourself how public you make this feature :)
2968         my $commit_search = 1;
2969         my $author_search = 0;
2970         my $committer_search = 0;
2971         my $pickaxe_search = 0;
2972         if ($searchtext =~ s/^author\\://i) {
2973                 $author_search = 1;
2974         } elsif ($searchtext =~ s/^committer\\://i) {
2975                 $committer_search = 1;
2976         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2977                 $commit_search = 0;
2978                 $pickaxe_search = 1;
2979         }
2980         git_header_html();
2981         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2982         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2983
2984         print "<table cellspacing=\"0\">\n";
2985         my $alternate = 0;
2986         if ($commit_search) {
2987                 $/ = "\0";
2988                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2989                 while (my $commit_text = <$fd>) {
2990                         if (!grep m/$searchtext/i, $commit_text) {
2991                                 next;
2992                         }
2993                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2994                                 next;
2995                         }
2996                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2997                                 next;
2998                         }
2999                         my @commit_lines = split "\n", $commit_text;
3000                         my %co = parse_commit(undef, \@commit_lines);
3001                         if (!%co) {
3002                                 next;
3003                         }
3004                         if ($alternate) {
3005                                 print "<tr class=\"dark\">\n";
3006                         } else {
3007                                 print "<tr class=\"light\">\n";
3008                         }
3009                         $alternate ^= 1;
3010                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3011                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3012                               "<td>" .
3013                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3014                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3015                         my $comment = $co{'comment'};
3016                         foreach my $line (@$comment) {
3017                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3018                                         my $lead = esc_html($1) || "";
3019                                         $lead = chop_str($lead, 30, 10);
3020                                         my $match = esc_html($2) || "";
3021                                         my $trail = esc_html($3) || "";
3022                                         $trail = chop_str($trail, 30, 10);
3023                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3024                                         print chop_str($text, 80, 5) . "<br/>\n";
3025                                 }
3026                         }
3027                         print "</td>\n" .
3028                               "<td class=\"link\">" .
3029                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3030                               " | " .
3031                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3032                         print "</td>\n" .
3033                               "</tr>\n";
3034                 }
3035                 close $fd;
3036         }
3037
3038         if ($pickaxe_search) {
3039                 $/ = "\n";
3040                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
3041                 undef %co;
3042                 my @files;
3043                 while (my $line = <$fd>) {
3044                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3045                                 my %set;
3046                                 $set{'file'} = $6;
3047                                 $set{'from_id'} = $3;
3048                                 $set{'to_id'} = $4;
3049                                 $set{'id'} = $set{'to_id'};
3050                                 if ($set{'id'} =~ m/0{40}/) {
3051                                         $set{'id'} = $set{'from_id'};
3052                                 }
3053                                 if ($set{'id'} =~ m/0{40}/) {
3054                                         next;
3055                                 }
3056                                 push @files, \%set;
3057                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3058                                 if (%co) {
3059                                         if ($alternate) {
3060                                                 print "<tr class=\"dark\">\n";
3061                                         } else {
3062                                                 print "<tr class=\"light\">\n";
3063                                         }
3064                                         $alternate ^= 1;
3065                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3066                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3067                                               "<td>" .
3068                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3069                                                       -class => "list subject"},
3070                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3071                                         while (my $setref = shift @files) {
3072                                                 my %set = %$setref;
3073                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3074                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3075                                                               -class => "list"},
3076                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3077                                                       "<br/>\n";
3078                                         }
3079                                         print "</td>\n" .
3080                                               "<td class=\"link\">" .
3081                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3082                                               " | " .
3083                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3084                                         print "</td>\n" .
3085                                               "</tr>\n";
3086                                 }
3087                                 %co = parse_commit($1);
3088                         }
3089                 }
3090                 close $fd;
3091         }
3092         print "</table>\n";
3093         git_footer_html();
3094 }
3095
3096 sub git_shortlog {
3097         my $head = git_get_head_hash($project);
3098         if (!defined $hash) {
3099                 $hash = $head;
3100         }
3101         if (!defined $page) {
3102                 $page = 0;
3103         }
3104         my $refs = git_get_references();
3105
3106         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3107         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
3108                 or die_error(undef, "Open git-rev-list failed");
3109         my @revlist = map { chomp; $_ } <$fd>;
3110         close $fd;
3111
3112         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3113         my $next_link = '';
3114         if ($#revlist >= (100 * ($page+1)-1)) {
3115                 $next_link =
3116                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3117                                  -title => "Alt-n"}, "next");
3118         }
3119
3120
3121         git_header_html();
3122         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3123         git_print_header_div('summary', $project);
3124
3125         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3126
3127         git_footer_html();
3128 }
3129
3130 ## ......................................................................
3131 ## feeds (RSS, OPML)
3132
3133 sub git_rss {
3134         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3135         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
3136                 or die_error(undef, "Open git-rev-list failed");
3137         my @revlist = map { chomp; $_ } <$fd>;
3138         close $fd or die_error(undef, "Reading git-rev-list failed");
3139         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3140         print <<XML;
3141 <?xml version="1.0" encoding="utf-8"?>
3142 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3143 <channel>
3144 <title>$project $my_uri $my_url</title>
3145 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3146 <description>$project log</description>
3147 <language>en</language>
3148 XML
3149
3150         for (my $i = 0; $i <= $#revlist; $i++) {
3151                 my $commit = $revlist[$i];
3152                 my %co = parse_commit($commit);
3153                 # we read 150, we always show 30 and the ones more recent than 48 hours
3154                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3155                         last;
3156                 }
3157                 my %cd = parse_date($co{'committer_epoch'});
3158                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
3159                 my @difftree = map { chomp; $_ } <$fd>;
3160                 close $fd or next;
3161                 print "<item>\n" .
3162                       "<title>" .
3163                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3164                       "</title>\n" .
3165                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3166                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3167                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3168                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3169                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3170                       "<content:encoded>" .
3171                       "<![CDATA[\n";
3172                 my $comment = $co{'comment'};
3173                 foreach my $line (@$comment) {
3174                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3175                         print "$line<br/>\n";
3176                 }
3177                 print "<br/>\n";
3178                 foreach my $line (@difftree) {
3179                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3180                                 next;
3181                         }
3182                         my $file = validate_input(unquote($7));
3183                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3184                         print "$file<br/>\n";
3185                 }
3186                 print "]]>\n" .
3187                       "</content:encoded>\n" .
3188                       "</item>\n";
3189         }
3190         print "</channel></rss>";
3191 }
3192
3193 sub git_opml {
3194         my @list = git_get_projects_list();
3195
3196         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3197         print <<XML;
3198 <?xml version="1.0" encoding="utf-8"?>
3199 <opml version="1.0">
3200 <head>
3201   <title>$site_name Git OPML Export</title>
3202 </head>
3203 <body>
3204 <outline text="git RSS feeds">
3205 XML
3206
3207         foreach my $pr (@list) {
3208                 my %proj = %$pr;
3209                 my $head = git_get_head_hash($proj{'path'});
3210                 if (!defined $head) {
3211                         next;
3212                 }
3213                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
3214                 my %co = parse_commit($head);
3215                 if (!%co) {
3216                         next;
3217                 }
3218
3219                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3220                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3221                 my $html = "$my_url?p=$proj{'path'};a=summary";
3222                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3223         }
3224         print <<XML;
3225 </outline>
3226 </body>
3227 </opml>
3228 XML
3229 }