gitweb/gitweb.cgi

   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 binmode STDOUT, ':utf8';
  18
  19 our $cgi = new CGI;
  20 our $version = "267";
  21 our $my_url = $cgi->url();
  22 our $my_uri = $cgi->url(-absolute => 1);
  23 our $rss_link = "";
  24
  25 # core git executable to use
  26 # this can just be "git" if your webserver has a sensible PATH
  27 our $GIT = "/usr/bin/git";
  28
  29 # absolute fs-path which will be prepended to the project path
  30 #our $projectroot = "/pub/scm";
  31 our $projectroot = "/home/kay/public_html/pub/scm";
  32
  33 # version of the core git binary
  34 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  35
  36 # location for temporary files needed for diffs
  37 our $git_temp = "/tmp/gitweb";
  38 if (! -d $git_temp) {
  39         mkdir($git_temp, 0700) || die_error("Couldn't mkdir $git_temp");
  40 }
  41
  42 # target of the home link on top of all pages
  43 our $home_link = $my_uri;
  44
  45 # name of your site or organization to appear in page titles
  46 # replace this with something more descriptive for clearer bookmarks
  47 our $site_name = $ENV{'SERVER_NAME'} || "Untitled";
  48
  49 # html text to include at home page
  50 our $home_text = "indextext.html";
  51
  52 # URI of default stylesheet
  53 our $stylesheet = "gitweb.css";
  54
  55 # source of projects list
  56 #our $projects_list = $projectroot;
  57 our $projects_list = "index/index.aux";
  58
  59 # default blob_plain mimetype and default charset for text/plain blob
  60 our $default_blob_plain_mimetype = 'text/plain';
  61 our $default_text_plain_charset  = undef;
  62
  63 # file to use for guessing MIME types before trying /etc/mime.types
  64 # (relative to the current git repository)
  65 our $mimetypes_file = undef;
  66
  67 # input validation and dispatch
  68 our $action = $cgi->param('a');
  69 if (defined $action) {
  70         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  71                 undef $action;
  72                 die_error(undef, "Invalid action parameter.");
  73         }
  74         if ($action eq "git-logo.png") {
  75                 git_logo();
  76                 exit;
  77         } elsif ($action eq "opml") {
  78                 git_opml();
  79                 exit;
  80         }
  81 }
  82
  83 our $order = $cgi->param('o');
  84 if (defined $order) {
  85         if ($order =~ m/[^0-9a-zA-Z_]/) {
  86                 undef $order;
  87                 die_error(undef, "Invalid order parameter.");
  88         }
  89 }
  90
  91 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  92 if (defined $project) {
  93         $project =~ s|^/||; $project =~ s|/$||;
  94         $project = validate_input($project);
  95         if (!defined($project)) {
  96                 die_error(undef, "Invalid project parameter.");
  97         }
  98         if (!(-d "$projectroot/$project")) {
  99                 undef $project;
 100                 die_error(undef, "No such directory.");
 101         }
 102         if (!(-e "$projectroot/$project/HEAD")) {
 103                 undef $project;
 104                 die_error(undef, "No such project.");
 105         }
 106         $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
 107                     "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
 108         $ENV{'GIT_DIR'} = "$projectroot/$project";
 109 } else {
 110         git_project_list();
 111         exit;
 112 }
 113
 114 our $file_name = $cgi->param('f');
 115 if (defined $file_name) {
 116         $file_name = validate_input($file_name);
 117         if (!defined($file_name)) {
 118                 die_error(undef, "Invalid file parameter.");
 119         }
 120 }
 121
 122 our $hash = $cgi->param('h');
 123 if (defined $hash) {
 124         $hash = validate_input($hash);
 125         if (!defined($hash)) {
 126                 die_error(undef, "Invalid hash parameter.");
 127         }
 128 }
 129
 130 our $hash_parent = $cgi->param('hp');
 131 if (defined $hash_parent) {
 132         $hash_parent = validate_input($hash_parent);
 133         if (!defined($hash_parent)) {
 134                 die_error(undef, "Invalid hash parent parameter.");
 135         }
 136 }
 137
 138 our $hash_base = $cgi->param('hb');
 139 if (defined $hash_base) {
 140         $hash_base = validate_input($hash_base);
 141         if (!defined($hash_base)) {
 142                 die_error(undef, "Invalid hash base parameter.");
 143         }
 144 }
 145
 146 our $page = $cgi->param('pg');
 147 if (defined $page) {
 148         if ($page =~ m/[^0-9]$/) {
 149                 undef $page;
 150                 die_error(undef, "Invalid page parameter.");
 151         }
 152 }
 153
 154 our $searchtext = $cgi->param('s');
 155 if (defined $searchtext) {
 156         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 157                 undef $searchtext;
 158                 die_error(undef, "Invalid search parameter.");
 159         }
 160         $searchtext = quotemeta $searchtext;
 161 }
 162
 163 sub validate_input {
 164         my $input = shift;
 165
 166         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 167                 return $input;
 168         }
 169         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 170                 return undef;
 171         }
 172         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 173                 return undef;
 174         }
 175         return $input;
 176 }
 177
 178 if (!defined $action || $action eq "summary") {
 179         git_summary();
 180         exit;
 181 } elsif ($action eq "heads") {
 182         git_heads();
 183         exit;
 184 } elsif ($action eq "tags") {
 185         git_tags();
 186         exit;
 187 } elsif ($action eq "blob") {
 188         git_blob();
 189         exit;
 190 } elsif ($action eq "blob_plain") {
 191         git_blob_plain();
 192         exit;
 193 } elsif ($action eq "tree") {
 194         git_tree();
 195         exit;
 196 } elsif ($action eq "rss") {
 197         git_rss();
 198         exit;
 199 } elsif ($action eq "commit") {
 200         git_commit();
 201         exit;
 202 } elsif ($action eq "log") {
 203         git_log();
 204         exit;
 205 } elsif ($action eq "blobdiff") {
 206         git_blobdiff();
 207         exit;
 208 } elsif ($action eq "blobdiff_plain") {
 209         git_blobdiff_plain();
 210         exit;
 211 } elsif ($action eq "commitdiff") {
 212         git_commitdiff();
 213         exit;
 214 } elsif ($action eq "commitdiff_plain") {
 215         git_commitdiff_plain();
 216         exit;
 217 } elsif ($action eq "history") {
 218         git_history();
 219         exit;
 220 } elsif ($action eq "search") {
 221         git_search();
 222         exit;
 223 } elsif ($action eq "shortlog") {
 224         git_shortlog();
 225         exit;
 226 } elsif ($action eq "tag") {
 227         git_tag();
 228         exit;
 229 } elsif ($action eq "blame") {
 230         git_blame2();
 231         exit;
 232 } else {
 233         undef $action;
 234         die_error(undef, "Unknown action.");
 235         exit;
 236 }
 237
 238 # quote unsafe chars, but keep the slash, even when it's not
 239 # correct, but quoted slashes look too horrible in bookmarks
 240 sub esc_param {
 241         my $str = shift;
 242         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 243         $str =~ s/\+/%2B/g;
 244         $str =~ s/ /\+/g;
 245         return $str;
 246 }
 247
 248 # replace invalid utf8 character with SUBSTITUTION sequence
 249 sub esc_html {
 250         my $str = shift;
 251         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 252         $str = escapeHTML($str);
 253         return $str;
 254 }
 255
 256 # git may return quoted and escaped filenames
 257 sub unquote {
 258         my $str = shift;
 259         if ($str =~ m/^"(.*)"$/) {
 260                 $str = $1;
 261                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 262         }
 263         return $str;
 264 }
 265
 266 # CSS class for given age value (in seconds)
 267 sub age_class {
 268         my $age = shift;
 269
 270         if ($age < 60*60*2) {
 271                 return "age0";
 272         } elsif ($age < 60*60*24*2) {
 273                 return "age1";
 274         } else {
 275                 return "age2";
 276         }
 277 }
 278
 279 sub git_header_html {
 280         my $status = shift || "200 OK";
 281         my $expires = shift;
 282
 283         my $title = "$site_name git";
 284         if (defined $project) {
 285                 $title .= " - $project";
 286                 if (defined $action) {
 287                         $title .= "/$action";
 288                         if (defined $file_name) {
 289                                 $title .= " - $file_name";
 290                                 if ($action eq "tree" && $file_name !~ m|/$|) {
 291                                         $title .= "/";
 292                                 }
 293                         }
 294                 }
 295         }
 296         my $content_type;
 297         # require explicit support from the UA if we are to send the page as
 298         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 299         # we have to do this because MSIE sometimes globs '*/*', pretending to
 300         # support xhtml+xml but choking when it gets what it asked for.
 301         if ($cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
 302                 $content_type = 'application/xhtml+xml';
 303         } else {
 304                 $content_type = 'text/html';
 305         }
 306         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 307         print <<EOF;
 308 <?xml version="1.0" encoding="utf-8"?>
 309 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 310 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 311 <!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
 312 <!-- git core binaries version $git_version -->
 313 <head>
 314 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
 315 <meta name="robots" content="index, nofollow"/>
 316 <title>$title</title>
 317 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
 318 $rss_link
 319 </head>
 320 <body>
 321 EOF
 322         print "<div class=\"page_header\">\n" .
 323               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 324               "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 325               "</a>\n";
 326         print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
 327         if (defined $project) {
 328                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
 329                 if (defined $action) {
 330                         print " / $action";
 331                 }
 332                 print "\n";
 333                 if (!defined $searchtext) {
 334                         $searchtext = "";
 335                 }
 336                 my $search_hash;
 337                 if (defined $hash_base) {
 338                         $search_hash = $hash_base;
 339                 } elsif (defined $hash) {
 340                         $search_hash = $hash;
 341                 } else {
 342                         $search_hash = "HEAD";
 343                 }
 344                 $cgi->param("a", "search");
 345                 $cgi->param("h", $search_hash);
 346                 print $cgi->startform(-method => "get", -action => $my_uri) .
 347                       "<div class=\"search\">\n" .
 348                       $cgi->hidden(-name => "p") . "\n" .
 349                       $cgi->hidden(-name => "a") . "\n" .
 350                       $cgi->hidden(-name => "h") . "\n" .
 351                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 352                       "</div>" .
 353                       $cgi->end_form() . "\n";
 354         }
 355         print "</div>\n";
 356 }
 357
 358 sub git_footer_html {
 359         print "<div class=\"page_footer\">\n";
 360         if (defined $project) {
 361                 my $descr = git_read_description($project);
 362                 if (defined $descr) {
 363                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 364                 }
 365                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 366         } else {
 367                 print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 368         }
 369         print "</div>\n" .
 370               "</body>\n" .
 371               "</html>";
 372 }
 373
 374 sub die_error {
 375         my $status = shift || "403 Forbidden";
 376         my $error = shift || "Malformed query, file missing or permission denied";
 377
 378         git_header_html($status);
 379         print "<div class=\"page_body\">\n" .
 380               "<br/><br/>\n" .
 381               "$status - $error\n" .
 382               "<br/>\n" .
 383               "</div>\n";
 384         git_footer_html();
 385         exit;
 386 }
 387
 388 sub git_get_type {
 389         my $hash = shift;
 390
 391         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 392         my $type = <$fd>;
 393         close $fd or return;
 394         chomp $type;
 395         return $type;
 396 }
 397
 398 sub git_read_head {
 399         my $project = shift;
 400         my $oENV = $ENV{'GIT_DIR'};
 401         my $retval = undef;
 402         $ENV{'GIT_DIR'} = "$projectroot/$project";
 403         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 404                 my $head = <$fd>;
 405                 close $fd;
 406                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 407                         $retval = $1;
 408                 }
 409         }
 410         if (defined $oENV) {
 411                 $ENV{'GIT_DIR'} = $oENV;
 412         }
 413         return $retval;
 414 }
 415
 416 sub git_read_hash {
 417         my $path = shift;
 418
 419         open my $fd, "$projectroot/$path" or return undef;
 420         my $head = <$fd>;
 421         close $fd;
 422         chomp $head;
 423         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 424                 return $head;
 425         }
 426 }
 427
 428 sub git_read_description {
 429         my $path = shift;
 430
 431         open my $fd, "$projectroot/$path/description" or return undef;
 432         my $descr = <$fd>;
 433         close $fd;
 434         chomp $descr;
 435         return $descr;
 436 }
 437
 438 sub git_read_tag {
 439         my $tag_id = shift;
 440         my %tag;
 441         my @comment;
 442
 443         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 444         $tag{'id'} = $tag_id;
 445         while (my $line = <$fd>) {
 446                 chomp $line;
 447                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 448                         $tag{'object'} = $1;
 449                 } elsif ($line =~ m/^type (.+)$/) {
 450                         $tag{'type'} = $1;
 451                 } elsif ($line =~ m/^tag (.+)$/) {
 452                         $tag{'name'} = $1;
 453                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 454                         $tag{'author'} = $1;
 455                         $tag{'epoch'} = $2;
 456                         $tag{'tz'} = $3;
 457                 } elsif ($line =~ m/--BEGIN/) {
 458                         push @comment, $line;
 459                         last;
 460                 } elsif ($line eq "") {
 461                         last;
 462                 }
 463         }
 464         push @comment, <$fd>;
 465         $tag{'comment'} = \@comment;
 466         close $fd or return;
 467         if (!defined $tag{'name'}) {
 468                 return
 469         };
 470         return %tag
 471 }
 472
 473 sub age_string {
 474         my $age = shift;
 475         my $age_str;
 476
 477         if ($age > 60*60*24*365*2) {
 478                 $age_str = (int $age/60/60/24/365);
 479                 $age_str .= " years ago";
 480         } elsif ($age > 60*60*24*(365/12)*2) {
 481                 $age_str = int $age/60/60/24/(365/12);
 482                 $age_str .= " months ago";
 483         } elsif ($age > 60*60*24*7*2) {
 484                 $age_str = int $age/60/60/24/7;
 485                 $age_str .= " weeks ago";
 486         } elsif ($age > 60*60*24*2) {
 487                 $age_str = int $age/60/60/24;
 488                 $age_str .= " days ago";
 489         } elsif ($age > 60*60*2) {
 490                 $age_str = int $age/60/60;
 491                 $age_str .= " hours ago";
 492         } elsif ($age > 60*2) {
 493                 $age_str = int $age/60;
 494                 $age_str .= " min ago";
 495         } elsif ($age > 2) {
 496                 $age_str = int $age;
 497                 $age_str .= " sec ago";
 498         } else {
 499                 $age_str .= " right now";
 500         }
 501         return $age_str;
 502 }
 503
 504 sub git_read_commit {
 505         my $commit_id = shift;
 506         my $commit_text = shift;
 507
 508         my @commit_lines;
 509         my %co;
 510
 511         if (defined $commit_text) {
 512                 @commit_lines = @$commit_text;
 513         } else {
 514                 $/ = "\0";
 515                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 516                 @commit_lines = split '\n', <$fd>;
 517                 close $fd or return;
 518                 $/ = "\n";
 519                 pop @commit_lines;
 520         }
 521         my $header = shift @commit_lines;
 522         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 523                 return;
 524         }
 525         ($co{'id'}, my @parents) = split ' ', $header;
 526         $co{'parents'} = \@parents;
 527         $co{'parent'} = $parents[0];
 528         while (my $line = shift @commit_lines) {
 529                 last if $line eq "\n";
 530                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 531                         $co{'tree'} = $1;
 532                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 533                         $co{'author'} = $1;
 534                         $co{'author_epoch'} = $2;
 535                         $co{'author_tz'} = $3;
 536                         if ($co{'author'} =~ m/^([^<]+) </) {
 537                                 $co{'author_name'} = $1;
 538                         } else {
 539                                 $co{'author_name'} = $co{'author'};
 540                         }
 541                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 542                         $co{'committer'} = $1;
 543                         $co{'committer_epoch'} = $2;
 544                         $co{'committer_tz'} = $3;
 545                         $co{'committer_name'} = $co{'committer'};
 546                         $co{'committer_name'} =~ s/ <.*//;
 547                 }
 548         }
 549         if (!defined $co{'tree'}) {
 550                 return;
 551         };
 552
 553         foreach my $title (@commit_lines) {
 554                 $title =~ s/^    //;
 555                 if ($title ne "") {
 556                         $co{'title'} = chop_str($title, 80, 5);
 557                         # remove leading stuff of merges to make the interesting part visible
 558                         if (length($title) > 50) {
 559                                 $title =~ s/^Automatic //;
 560                                 $title =~ s/^merge (of|with) /Merge ... /i;
 561                                 if (length($title) > 50) {
 562                                         $title =~ s/(http|rsync):\/\///;
 563                                 }
 564                                 if (length($title) > 50) {
 565                                         $title =~ s/(master|www|rsync)\.//;
 566                                 }
 567                                 if (length($title) > 50) {
 568                                         $title =~ s/kernel.org:?//;
 569                                 }
 570                                 if (length($title) > 50) {
 571                                         $title =~ s/\/pub\/scm//;
 572                                 }
 573                         }
 574                         $co{'title_short'} = chop_str($title, 50, 5);
 575                         last;
 576                 }
 577         }
 578         # remove added spaces
 579         foreach my $line (@commit_lines) {
 580                 $line =~ s/^    //;
 581         }
 582         $co{'comment'} = \@commit_lines;
 583
 584         my $age = time - $co{'committer_epoch'};
 585         $co{'age'} = $age;
 586         $co{'age_string'} = age_string($age);
 587         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 588         if ($age > 60*60*24*7*2) {
 589                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 590                 $co{'age_string_age'} = $co{'age_string'};
 591         } else {
 592                 $co{'age_string_date'} = $co{'age_string'};
 593                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 594         }
 595         return %co;
 596 }
 597
 598 sub git_diff_print {
 599         my $from = shift;
 600         my $from_name = shift;
 601         my $to = shift;
 602         my $to_name = shift;
 603         my $format = shift || "html";
 604
 605         my $from_tmp = "/dev/null";
 606         my $to_tmp = "/dev/null";
 607         my $pid = $$;
 608
 609         # create tmp from-file
 610         if (defined $from) {
 611                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 612                 open my $fd2, "> $from_tmp";
 613                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
 614                 my @file = <$fd>;
 615                 print $fd2 @file;
 616                 close $fd2;
 617                 close $fd;
 618         }
 619
 620         # create tmp to-file
 621         if (defined $to) {
 622                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 623                 open my $fd2, "> $to_tmp";
 624                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
 625                 my @file = <$fd>;
 626                 print $fd2 @file;
 627                 close $fd2;
 628                 close $fd;
 629         }
 630
 631         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 632         if ($format eq "plain") {
 633                 undef $/;
 634                 print <$fd>;
 635                 $/ = "\n";
 636         } else {
 637                 while (my $line = <$fd>) {
 638                         chomp($line);
 639                         my $char = substr($line, 0, 1);
 640                         my $diff_class = "";
 641                         if ($char eq '+') {
 642                                 $diff_class = " add";
 643                         } elsif ($char eq "-") {
 644                                 $diff_class = " rem";
 645                         } elsif ($char eq "@") {
 646                                 $diff_class = " chunk_header";
 647                         } elsif ($char eq "\\") {
 648                                 # skip errors
 649                                 next;
 650                         }
 651                         while ((my $pos = index($line, "\t")) != -1) {
 652                                 if (my $count = (8 - (($pos-1) % 8))) {
 653                                         my $spaces = ' ' x $count;
 654                                         $line =~ s/\t/$spaces/;
 655                                 }
 656                         }
 657                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 658                 }
 659         }
 660         close $fd;
 661
 662         if (defined $from) {
 663                 unlink($from_tmp);
 664         }
 665         if (defined $to) {
 666                 unlink($to_tmp);
 667         }
 668 }
 669
 670 sub mode_str {
 671         my $mode = oct shift;
 672
 673         if (S_ISDIR($mode & S_IFMT)) {
 674                 return 'drwxr-xr-x';
 675         } elsif (S_ISLNK($mode)) {
 676                 return 'lrwxrwxrwx';
 677         } elsif (S_ISREG($mode)) {
 678                 # git cares only about the executable bit
 679                 if ($mode & S_IXUSR) {
 680                         return '-rwxr-xr-x';
 681                 } else {
 682                         return '-rw-r--r--';
 683                 };
 684         } else {
 685                 return '----------';
 686         }
 687 }
 688
 689 sub chop_str {
 690         my $str = shift;
 691         my $len = shift;
 692         my $add_len = shift || 10;
 693
 694         # allow only $len chars, but don't cut a word if it would fit in $add_len
 695         # if it doesn't fit, cut it if it's still longer than the dots we would add
 696         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 697         my $body = $1;
 698         my $tail = $2;
 699         if (length($tail) > 4) {
 700                 $tail = " ...";
 701         }
 702         return "$body$tail";
 703 }
 704
 705 sub file_type {
 706         my $mode = oct shift;
 707
 708         if (S_ISDIR($mode & S_IFMT)) {
 709                 return "directory";
 710         } elsif (S_ISLNK($mode)) {
 711                 return "symlink";
 712         } elsif (S_ISREG($mode)) {
 713                 return "file";
 714         } else {
 715                 return "unknown";
 716         }
 717 }
 718
 719 sub format_log_line_html {
 720         my $line = shift;
 721
 722         $line = esc_html($line);
 723         $line =~ s/ /&nbsp;/g;
 724         if ($line =~ m/([0-9a-fA-F]{40})/) {
 725                 my $hash_text = $1;
 726                 if (git_get_type($hash_text) eq "commit") {
 727                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 728                         $line =~ s/$hash_text/$link/;
 729                 }
 730         }
 731         return $line;
 732 }
 733
 734 sub date_str {
 735         my $epoch = shift;
 736         my $tz = shift || "-0000";
 737
 738         my %date;
 739         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 740         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 741         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 742         $date{'hour'} = $hour;
 743         $date{'minute'} = $min;
 744         $date{'mday'} = $mday;
 745         $date{'day'} = $days[$wday];
 746         $date{'month'} = $months[$mon];
 747         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 748         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 749
 750         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 751         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 752         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 753         $date{'hour_local'} = $hour;
 754         $date{'minute_local'} = $min;
 755         $date{'tz_local'} = $tz;
 756         return %date;
 757 }
 758
 759 # git-logo (cached in browser for one day)
 760 sub git_logo {
 761         binmode STDOUT, ':raw';
 762         print $cgi->header(-type => 'image/png', -expires => '+1d');
 763         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 764         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 765                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 766                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 767                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 768                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 769                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 770                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 771                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 772                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 773                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 774                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 775                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 776                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 777 }
 778
 779 sub get_file_owner {
 780         my $path = shift;
 781
 782         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 783         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 784         if (!defined $gcos) {
 785                 return undef;
 786         }
 787         my $owner = $gcos;
 788         $owner =~ s/[,;].*$//;
 789         return decode("utf8", $owner, Encode::FB_DEFAULT);
 790 }
 791
 792 sub git_read_projects {
 793         my @list;
 794
 795         if (-d $projects_list) {
 796                 # search in directory
 797                 my $dir = $projects_list;
 798                 opendir my ($dh), $dir or return undef;
 799                 while (my $dir = readdir($dh)) {
 800                         if (-e "$projectroot/$dir/HEAD") {
 801                                 my $pr = {
 802                                         path => $dir,
 803                                 };
 804                                 push @list, $pr
 805                         }
 806                 }
 807                 closedir($dh);
 808         } elsif (-f $projects_list) {
 809                 # read from file(url-encoded):
 810                 # 'git%2Fgit.git Linus+Torvalds'
 811                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 812                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 813                 open my ($fd), $projects_list or return undef;
 814                 while (my $line = <$fd>) {
 815                         chomp $line;
 816                         my ($path, $owner) = split ' ', $line;
 817                         $path = unescape($path);
 818                         $owner = unescape($owner);
 819                         if (!defined $path) {
 820                                 next;
 821                         }
 822                         if (-e "$projectroot/$path/HEAD") {
 823                                 my $pr = {
 824                                         path => $path,
 825                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 826                                 };
 827                                 push @list, $pr
 828                         }
 829                 }
 830                 close $fd;
 831         }
 832         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 833         return @list;
 834 }
 835
 836 sub git_get_project_config {
 837         my $key = shift;
 838
 839         return unless ($key);
 840         $key =~ s/^gitweb\.//;
 841         return if ($key =~ m/\W/);
 842
 843         my $val = qx($GIT repo-config --get gitweb.$key);
 844         return ($val);
 845 }
 846
 847 sub git_get_project_config_bool {
 848         my $val = git_get_project_config (@_);
 849         if ($val and $val =~ m/true|yes|on/) {
 850                 return (1);
 851         }
 852         return; # implicit false
 853 }
 854
 855 sub git_project_list {
 856         my @list = git_read_projects();
 857         my @projects;
 858         if (!@list) {
 859                 die_error(undef, "No project found.");
 860         }
 861         foreach my $pr (@list) {
 862                 my $head = git_read_head($pr->{'path'});
 863                 if (!defined $head) {
 864                         next;
 865                 }
 866                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 867                 my %co = git_read_commit($head);
 868                 if (!%co) {
 869                         next;
 870                 }
 871                 $pr->{'commit'} = \%co;
 872                 if (!defined $pr->{'descr'}) {
 873                         my $descr = git_read_description($pr->{'path'}) || "";
 874                         $pr->{'descr'} = chop_str($descr, 25, 5);
 875                 }
 876                 if (!defined $pr->{'owner'}) {
 877                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 878                 }
 879                 push @projects, $pr;
 880         }
 881         git_header_html();
 882         if (-f $home_text) {
 883                 print "<div class=\"index_include\">\n";
 884                 open (my $fd, $home_text);
 885                 print <$fd>;
 886                 close $fd;
 887                 print "</div>\n";
 888         }
 889         print "<table class=\"project_list\">\n" .
 890               "<tr>\n";
 891         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 892                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 893                 print "<th>Project</th>\n";
 894         } else {
 895                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 896         }
 897         if (defined($order) && ($order eq "descr")) {
 898                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 899                 print "<th>Description</th>\n";
 900         } else {
 901                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 902         }
 903         if (defined($order) && ($order eq "owner")) {
 904                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 905                 print "<th>Owner</th>\n";
 906         } else {
 907                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 908         }
 909         if (defined($order) && ($order eq "age")) {
 910                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 911                 print "<th>Last Change</th>\n";
 912         } else {
 913                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 914         }
 915         print "<th></th>\n" .
 916               "</tr>\n";
 917         my $alternate = 0;
 918         foreach my $pr (@projects) {
 919                 if ($alternate) {
 920                         print "<tr class=\"dark\">\n";
 921                 } else {
 922                         print "<tr class=\"light\">\n";
 923                 }
 924                 $alternate ^= 1;
 925                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 926                       "<td>$pr->{'descr'}</td>\n" .
 927                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 928                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
 929                       "<td class=\"link\">" .
 930                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 931                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 932                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
 933                       "</td>\n" .
 934                       "</tr>\n";
 935         }
 936         print "</table>\n";
 937         git_footer_html();
 938 }
 939
 940 sub read_info_ref {
 941         my $type = shift || "";
 942         my %refs;
 943         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 944         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 945         open my $fd, "$projectroot/$project/info/refs" or return;
 946         while (my $line = <$fd>) {
 947                 chomp($line);
 948                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
 949                         if (defined $refs{$1}) {
 950                                 $refs{$1} .= " / $2";
 951                         } else {
 952                                 $refs{$1} = $2;
 953                         }
 954                 }
 955         }
 956         close $fd or return;
 957         return \%refs;
 958 }
 959
 960 sub git_read_refs {
 961         my $ref_dir = shift;
 962         my @reflist;
 963
 964         my @refs;
 965         opendir my $dh, "$projectroot/$project/$ref_dir";
 966         while (my $dir = readdir($dh)) {
 967                 if ($dir =~ m/^\./) {
 968                         next;
 969                 }
 970                 if (-d "$projectroot/$project/$ref_dir/$dir") {
 971                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
 972                         my @subdirs = grep !m/^\./, readdir $dh2;
 973                         closedir($dh2);
 974                         foreach my $subdir (@subdirs) {
 975                                 push @refs, "$dir/$subdir"
 976                         }
 977                         next;
 978                 }
 979                 push @refs, $dir;
 980         }
 981         closedir($dh);
 982         foreach my $ref_file (@refs) {
 983                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
 984                 my $type = git_get_type($ref_id) || next;
 985                 my %ref_item;
 986                 my %co;
 987                 $ref_item{'type'} = $type;
 988                 $ref_item{'id'} = $ref_id;
 989                 $ref_item{'epoch'} = 0;
 990                 $ref_item{'age'} = "unknown";
 991                 if ($type eq "tag") {
 992                         my %tag = git_read_tag($ref_id);
 993                         $ref_item{'comment'} = $tag{'comment'};
 994                         if ($tag{'type'} eq "commit") {
 995                                 %co = git_read_commit($tag{'object'});
 996                                 $ref_item{'epoch'} = $co{'committer_epoch'};
 997                                 $ref_item{'age'} = $co{'age_string'};
 998                         } elsif (defined($tag{'epoch'})) {
 999                                 my $age = time - $tag{'epoch'};
1000                                 $ref_item{'epoch'} = $tag{'epoch'};
1001                                 $ref_item{'age'} = age_string($age);
1002                         }
1003                         $ref_item{'reftype'} = $tag{'type'};
1004                         $ref_item{'name'} = $tag{'name'};
1005                         $ref_item{'refid'} = $tag{'object'};
1006                 } elsif ($type eq "commit"){
1007                         %co = git_read_commit($ref_id);
1008                         $ref_item{'reftype'} = "commit";
1009                         $ref_item{'name'} = $ref_file;
1010                         $ref_item{'title'} = $co{'title'};
1011                         $ref_item{'refid'} = $ref_id;
1012                         $ref_item{'epoch'} = $co{'committer_epoch'};
1013                         $ref_item{'age'} = $co{'age_string'};
1014                 }
1015
1016                 push @reflist, \%ref_item;
1017         }
1018         # sort tags by age
1019         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1020         return \@reflist;
1021 }
1022
1023 sub git_summary {
1024         my $descr = git_read_description($project) || "none";
1025         my $head = git_read_head($project);
1026         my %co = git_read_commit($head);
1027         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1028
1029         my $owner;
1030         if (-f $projects_list) {
1031                 open (my $fd , $projects_list);
1032                 while (my $line = <$fd>) {
1033                         chomp $line;
1034                         my ($pr, $ow) = split ' ', $line;
1035                         $pr = unescape($pr);
1036                         $ow = unescape($ow);
1037                         if ($pr eq $project) {
1038                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
1039                                 last;
1040                         }
1041                 }
1042                 close $fd;
1043         }
1044         if (!defined $owner) {
1045                 $owner = get_file_owner("$projectroot/$project");
1046         }
1047
1048         my $refs = read_info_ref();
1049         git_header_html();
1050         print "<div class=\"page_nav\">\n" .
1051               "summary".
1052               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1053               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1054               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1055               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1056               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
1057               "<br/><br/>\n" .
1058               "</div>\n";
1059         print "<div class=\"title\">&nbsp;</div>\n";
1060         print "<table cellspacing=\"0\">\n" .
1061               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1062               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1063               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1064               "</table>\n";
1065         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
1066                 or die_error(undef, "Open failed.");
1067         my (@revlist) = map { chomp; $_ } <$fd>;
1068         close $fd;
1069         print "<div>\n" .
1070               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1071               "</div>\n";
1072         my $i = 16;
1073         print "<table cellspacing=\"0\">\n";
1074         my $alternate = 0;
1075         foreach my $commit (@revlist) {
1076                 my %co = git_read_commit($commit);
1077                 my %ad = date_str($co{'author_epoch'});
1078                 if ($alternate) {
1079                         print "<tr class=\"dark\">\n";
1080                 } else {
1081                         print "<tr class=\"light\">\n";
1082                 }
1083                 $alternate ^= 1;
1084                 if ($i-- > 0) {
1085                         my $ref = "";
1086                         if (defined $refs->{$commit}) {
1087                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1088                         }
1089                         print "<td><i>$co{'age_string'}</i></td>\n" .
1090                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1091                               "<td>";
1092                         if (length($co{'title_short'}) < length($co{'title'})) {
1093                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1094                                       "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1095                         } else {
1096                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1097                                       "<b>" . esc_html($co{'title'}) . "$ref</b>");
1098                         }
1099                         print "</td>\n" .
1100                               "<td class=\"link\">" .
1101                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1102                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1103                               "</td>\n" .
1104                               "</tr>";
1105                 } else {
1106                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1107                         "</tr>";
1108                         last;
1109                 }
1110         }
1111         print "</table\n>";
1112
1113         my $taglist = git_read_refs("refs/tags");
1114         if (defined @$taglist) {
1115                 print "<div>\n" .
1116                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1117                       "</div>\n";
1118                 my $i = 16;
1119                 print "<table cellspacing=\"0\">\n";
1120                 my $alternate = 0;
1121                 foreach my $entry (@$taglist) {
1122                         my %tag = %$entry;
1123                         my $comment_lines = $tag{'comment'};
1124                         my $comment = shift @$comment_lines;
1125                         if (defined($comment)) {
1126                                 $comment = chop_str($comment, 30, 5);
1127                         }
1128                         if ($alternate) {
1129                                 print "<tr class=\"dark\">\n";
1130                         } else {
1131                                 print "<tr class=\"light\">\n";
1132                         }
1133                         $alternate ^= 1;
1134                         if ($i-- > 0) {
1135                                 print "<td><i>$tag{'age'}</i></td>\n" .
1136                                       "<td>" .
1137                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1138                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1139                                       "</td>\n" .
1140                                       "<td>";
1141                                 if (defined($comment)) {
1142                                         print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
1143                                 }
1144                                 print "</td>\n" .
1145                                       "<td class=\"link\">";
1146                                 if ($tag{'type'} eq "tag") {
1147                                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1148                                 }
1149                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1150                                 if ($tag{'reftype'} eq "commit") {
1151                                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1152                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1153                                 }
1154                                 print "</td>\n" .
1155                                       "</tr>";
1156                         } else {
1157                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1158                                 "</tr>";
1159                                 last;
1160                         }
1161                 }
1162                 print "</table\n>";
1163         }
1164
1165         my $headlist = git_read_refs("refs/heads");
1166         if (defined @$headlist) {
1167                 print "<div>\n" .
1168                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1169                       "</div>\n";
1170                 my $i = 16;
1171                 print "<table cellspacing=\"0\">\n";
1172                 my $alternate = 0;
1173                 foreach my $entry (@$headlist) {
1174                         my %tag = %$entry;
1175                         if ($alternate) {
1176                                 print "<tr class=\"dark\">\n";
1177                         } else {
1178                                 print "<tr class=\"light\">\n";
1179                         }
1180                         $alternate ^= 1;
1181                         if ($i-- > 0) {
1182                                 print "<td><i>$tag{'age'}</i></td>\n" .
1183                                       "<td>" .
1184                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1185                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1186                                       "</td>\n" .
1187                                       "<td class=\"link\">" .
1188                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1189                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1190                                       "</td>\n" .
1191                                       "</tr>";
1192                         } else {
1193                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1194                                 "</tr>";
1195                                 last;
1196                         }
1197                 }
1198                 print "</table\n>";
1199         }
1200         git_footer_html();
1201 }
1202
1203 sub git_print_page_path {
1204         my $name = shift;
1205         my $type = shift;
1206
1207         if (!defined $name) {
1208                 print "<div class=\"page_path\"><b>/</b></div>\n";
1209         } elsif ($type =~ "blob") {
1210                 print "<div class=\"page_path\"><b>" .
1211                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
1212         } else {
1213                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1214         }
1215 }
1216
1217 sub git_tag {
1218         my $head = git_read_head($project);
1219         git_header_html();
1220         print "<div class=\"page_nav\">\n" .
1221               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1222               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1223               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1224               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1225               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1226               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1227               "<br/>\n" .
1228               "</div>\n";
1229         my %tag = git_read_tag($hash);
1230         print "<div>\n" .
1231               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1232               "</div>\n";
1233         print "<div class=\"title_text\">\n" .
1234               "<table cellspacing=\"0\">\n" .
1235               "<tr>\n" .
1236               "<td>object</td>\n" .
1237               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1238               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1239               "</tr>\n";
1240         if (defined($tag{'author'})) {
1241                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1242                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1243                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1244         }
1245         print "</table>\n\n" .
1246               "</div>\n";
1247         print "<div class=\"page_body\">";
1248         my $comment = $tag{'comment'};
1249         foreach my $line (@$comment) {
1250                 print esc_html($line) . "<br/>\n";
1251         }
1252         print "</div>\n";
1253         git_footer_html();
1254 }
1255
1256 sub git_blame2 {
1257         my $fd;
1258         my $ftype;
1259         die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
1260         die_error('404 Not Found', "File name not defined") if (!$file_name);
1261         $hash_base ||= git_read_head($project);
1262         die_error(undef, "Reading commit failed") unless ($hash_base);
1263         my %co = git_read_commit($hash_base)
1264                 or die_error(undef, "Reading commit failed");
1265         if (!defined $hash) {
1266                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1267                         or die_error(undef, "Error looking up file");
1268         }
1269         $ftype = git_get_type($hash);
1270         if ($ftype !~ "blob") {
1271                 die_error("400 Bad Request", "object is not a blob");
1272         }
1273         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1274                 or die_error(undef, "Open failed");
1275         git_header_html();
1276         print "<div class=\"page_nav\">\n" .
1277                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1278                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1279                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1280                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1281                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1282                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1283         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1284                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
1285         print "</div>\n".
1286                 "<div>" .
1287                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1288                 "</div>\n";
1289         git_print_page_path($file_name, $ftype);
1290         my @rev_color = (qw(light dark));
1291         my $num_colors = scalar(@rev_color);
1292         my $current_color = 0;
1293         my $last_rev;
1294         print "<div class=\"page_body\">\n";
1295         print "<table class=\"blame\">\n";
1296         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1297         while (<$fd>) {
1298                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1299                 my $full_rev = $1;
1300                 my $rev = substr($full_rev, 0, 8);
1301                 my $lineno = $2;
1302                 my $data = $3;
1303
1304                 if (!defined $last_rev) {
1305                         $last_rev = $full_rev;
1306                 } elsif ($last_rev ne $full_rev) {
1307                         $last_rev = $full_rev;
1308                         $current_color = ++$current_color % $num_colors;
1309                 }
1310                 print "<tr class=\"$rev_color[$current_color]\">\n";
1311                 print "<td class=\"sha1\">" .
1312                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
1313                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1314                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1315                 print "</tr>\n";
1316         }
1317         print "</table>\n";
1318         print "</div>";
1319         close $fd or print "Reading blob failed\n";
1320         git_footer_html();
1321 }
1322
1323 sub git_blame {
1324         my $fd;
1325         die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
1326         die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
1327         $hash_base ||= git_read_head($project);
1328         die_error(undef, "Reading commit failed.") unless ($hash_base);
1329         my %co = git_read_commit($hash_base)
1330                 or die_error(undef, "Reading commit failed.");
1331         if (!defined $hash) {
1332                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1333                         or die_error(undef, "Error lookup file.");
1334         }
1335         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1336                 or die_error(undef, "Open failed.");
1337         git_header_html();
1338         print "<div class=\"page_nav\">\n" .
1339                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1340                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1341                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1342                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1343                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1344                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1345         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1346                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
1347         print "</div>\n".
1348                 "<div>" .
1349                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1350                 "</div>\n";
1351         git_print_page_path($file_name);
1352         print "<div class=\"page_body\">\n";
1353         print <<HTML;
1354 <table class="blame">
1355   <tr>
1356     <th>Commit</th>
1357     <th>Age</th>
1358     <th>Author</th>
1359     <th>Line</th>
1360     <th>Data</th>
1361   </tr>
1362 HTML
1363         my @line_class = (qw(light dark));
1364         my $line_class_len = scalar (@line_class);
1365         my $line_class_num = $#line_class;
1366         while (my $line = <$fd>) {
1367                 my $long_rev;
1368                 my $short_rev;
1369                 my $author;
1370                 my $time;
1371                 my $lineno;
1372                 my $data;
1373                 my $age;
1374                 my $age_str;
1375                 my $age_class;
1376
1377                 chomp $line;
1378                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1379
1380                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1381                         $long_rev = $1;
1382                         $author   = $2;
1383                         $time     = $3;
1384                         $lineno   = $4;
1385                         $data     = $5;
1386                 } else {
1387                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1388                         next;
1389                 }
1390                 $short_rev  = substr ($long_rev, 0, 8);
1391                 $age        = time () - $time;
1392                 $age_str    = age_string ($age);
1393                 $age_str    =~ s/ /&nbsp;/g;
1394                 $age_class  = age_class($age);
1395                 $author     = esc_html ($author);
1396                 $author     =~ s/ /&nbsp;/g;
1397                 # escape tabs
1398                 while ((my $pos = index($data, "\t")) != -1) {
1399                         if (my $count = (8 - ($pos % 8))) {
1400                                 my $spaces = ' ' x $count;
1401                                 $data =~ s/\t/$spaces/;
1402                         }
1403                 }
1404                 $data = esc_html ($data);
1405
1406                 print <<HTML;
1407   <tr class="$line_class[$line_class_num]">
1408     <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
1409     <td class="$age_class">$age_str</td>
1410     <td>$author</td>
1411     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1412     <td class="pre">$data</td>
1413   </tr>
1414 HTML
1415         } # while (my $line = <$fd>)
1416         print "</table>\n\n";
1417         close $fd or print "Reading blob failed.\n";
1418         print "</div>";
1419         git_footer_html();
1420 }
1421
1422 sub git_tags {
1423         my $head = git_read_head($project);
1424         git_header_html();
1425         print "<div class=\"page_nav\">\n" .
1426               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1427               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1428               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1429               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1430               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1431               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1432               "<br/>\n" .
1433               "</div>\n";
1434         my $taglist = git_read_refs("refs/tags");
1435         print "<div>\n" .
1436               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1437               "</div>\n";
1438         print "<table cellspacing=\"0\">\n";
1439         my $alternate = 0;
1440         if (defined @$taglist) {
1441                 foreach my $entry (@$taglist) {
1442                         my %tag = %$entry;
1443                         my $comment_lines = $tag{'comment'};
1444                         my $comment = shift @$comment_lines;
1445                         if (defined($comment)) {
1446                                 $comment = chop_str($comment, 30, 5);
1447                         }
1448                         if ($alternate) {
1449                                 print "<tr class=\"dark\">\n";
1450                         } else {
1451                                 print "<tr class=\"light\">\n";
1452                         }
1453                         $alternate ^= 1;
1454                         print "<td><i>$tag{'age'}</i></td>\n" .
1455                               "<td>" .
1456                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1457                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1458                               "</td>\n" .
1459                               "<td>";
1460                         if (defined($comment)) {
1461                                 print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1462                         }
1463                         print "</td>\n" .
1464                               "<td class=\"link\">";
1465                         if ($tag{'type'} eq "tag") {
1466                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1467                         }
1468                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1469                         if ($tag{'reftype'} eq "commit") {
1470                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1471                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1472                         }
1473                         print "</td>\n" .
1474                               "</tr>";
1475                 }
1476         }
1477         print "</table\n>";
1478         git_footer_html();
1479 }
1480
1481 sub git_heads {
1482         my $head = git_read_head($project);
1483         git_header_html();
1484         print "<div class=\"page_nav\">\n" .
1485               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1486               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1487               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1488               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1489               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1490               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1491               "<br/>\n" .
1492               "</div>\n";
1493         my $taglist = git_read_refs("refs/heads");
1494         print "<div>\n" .
1495               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1496               "</div>\n";
1497         print "<table cellspacing=\"0\">\n";
1498         my $alternate = 0;
1499         if (defined @$taglist) {
1500                 foreach my $entry (@$taglist) {
1501                         my %tag = %$entry;
1502                         if ($alternate) {
1503                                 print "<tr class=\"dark\">\n";
1504                         } else {
1505                                 print "<tr class=\"light\">\n";
1506                         }
1507                         $alternate ^= 1;
1508                         print "<td><i>$tag{'age'}</i></td>\n" .
1509                               "<td>" .
1510                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1511                               "</td>\n" .
1512                               "<td class=\"link\">" .
1513                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1514                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1515                               "</td>\n" .
1516                               "</tr>";
1517                 }
1518         }
1519         print "</table\n>";
1520         git_footer_html();
1521 }
1522
1523 sub git_get_hash_by_path {
1524         my $base = shift;
1525         my $path = shift || return undef;
1526
1527         my $tree = $base;
1528
1529         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
1530                 or die_error(undef, "Open git-ls-tree failed.");
1531         my $line = <$fd>;
1532         close $fd or return undef;
1533
1534         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1535         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1536         return $3;
1537 }
1538
1539 sub mimetype_guess_file {
1540         my $filename = shift;
1541         my $mimemap = shift;
1542         -r $mimemap or return undef;
1543
1544         my %mimemap;
1545         open(MIME, $mimemap) or return undef;
1546         while (<MIME>) {
1547                 my ($mime, $exts) = split(/\t+/);
1548                 my @exts = split(/\s+/, $exts);
1549                 foreach my $ext (@exts) {
1550                         $mimemap{$ext} = $mime;
1551                 }
1552         }
1553         close(MIME);
1554
1555         $filename =~ /\.(.*?)$/;
1556         return $mimemap{$1};
1557 }
1558
1559 sub mimetype_guess {
1560         my $filename = shift;
1561         my $mime;
1562         $filename =~ /\./ or return undef;
1563
1564         if ($mimetypes_file) {
1565                 my $file = $mimetypes_file;
1566                 #$file =~ m#^/# or $file = "$projectroot/$path/$file";
1567                 $mime = mimetype_guess_file($filename, $file);
1568         }
1569         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1570         return $mime;
1571 }
1572
1573 sub git_blob_plain_mimetype {
1574         my $fd = shift;
1575         my $filename = shift;
1576
1577         if ($filename) {
1578                 my $mime = mimetype_guess($filename);
1579                 $mime and return $mime;
1580         }
1581
1582         # just in case
1583         return $default_blob_plain_mimetype unless $fd;
1584
1585         if (-T $fd) {
1586                 return 'text/plain' .
1587                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1588         } elsif (! $filename) {
1589                 return 'application/octet-stream';
1590         } elsif ($filename =~ m/\.png$/i) {
1591                 return 'image/png';
1592         } elsif ($filename =~ m/\.gif$/i) {
1593                 return 'image/gif';
1594         } elsif ($filename =~ m/\.jpe?g$/i) {
1595                 return 'image/jpeg';
1596         } else {
1597                 return 'application/octet-stream';
1598         }
1599 }
1600
1601 sub git_blob_plain {
1602         if (!defined $hash) {
1603                 if (defined $file_name) {
1604                         my $base = $hash_base || git_read_head($project);
1605                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1606                                 or die_error(undef, "Error lookup file.");
1607                 } else {
1608                         die_error(undef, "No file name defined.");
1609                 }
1610         }
1611         my $type = shift;
1612         open my $fd, "-|", $GIT, "cat-file", "blob", $hash or die_error("Couldn't cat $file_name, $hash");
1613
1614         $type ||= git_blob_plain_mimetype($fd, $file_name);
1615
1616         # save as filename, even when no $file_name is given
1617         my $save_as = "$hash";
1618         if (defined $file_name) {
1619                 $save_as = $file_name;
1620         } elsif ($type =~ m/^text\//) {
1621                 $save_as .= '.txt';
1622         }
1623
1624         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1625         undef $/;
1626         binmode STDOUT, ':raw';
1627         print <$fd>;
1628         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1629         $/ = "\n";
1630         close $fd;
1631 }
1632
1633 sub git_blob {
1634         if (!defined $hash) {
1635                 if (defined $file_name) {
1636                         my $base = $hash_base || git_read_head($project);
1637                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1638                                 or die_error(undef, "Error lookup file.");
1639                 } else {
1640                         die_error(undef, "No file name defined.");
1641                 }
1642         }
1643         my $have_blame = git_get_project_config_bool ('blame');
1644         open my $fd, "-|", $GIT, "cat-file", "blob", $hash or die_error(undef, "Open failed.");
1645         my $mimetype = git_blob_plain_mimetype($fd, $file_name);
1646         if ($mimetype !~ m/^text\//) {
1647                 close $fd;
1648                 return git_blob_plain($mimetype);
1649         }
1650         git_header_html();
1651         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1652                 print "<div class=\"page_nav\">\n" .
1653                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1654                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1655                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1656                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1657                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1658                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1659                 if (defined $file_name) {
1660                         if ($have_blame) {
1661                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") .  " | ";
1662                         }
1663                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1664                         " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
1665                 } else {
1666                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
1667                 }
1668                 print "</div>\n".
1669                       "<div>" .
1670                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1671                       "</div>\n";
1672         } else {
1673                 print "<div class=\"page_nav\">\n" .
1674                       "<br/><br/></div>\n" .
1675                       "<div class=\"title\">$hash</div>\n";
1676         }
1677         git_print_page_path($file_name, "blob");
1678         print "<div class=\"page_body\">\n";
1679         my $nr;
1680         while (my $line = <$fd>) {
1681                 chomp $line;
1682                 $nr++;
1683                 while ((my $pos = index($line, "\t")) != -1) {
1684                         if (my $count = (8 - ($pos % 8))) {
1685                                 my $spaces = ' ' x $count;
1686                                 $line =~ s/\t/$spaces/;
1687                         }
1688                 }
1689                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1690         }
1691         close $fd or print "Reading blob failed.\n";
1692         print "</div>";
1693         git_footer_html();
1694 }
1695
1696 sub git_tree {
1697         if (!defined $hash) {
1698                 $hash = git_read_head($project);
1699                 if (defined $file_name) {
1700                         my $base = $hash_base || $hash;
1701                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1702                 }
1703                 if (!defined $hash_base) {
1704                         $hash_base = $hash;
1705                 }
1706         }
1707         $/ = "\0";
1708         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash or die_error(undef, "Open git-ls-tree failed.");
1709         chomp (my (@entries) = <$fd>);
1710         close $fd or die_error(undef, "Reading tree failed.");
1711         $/ = "\n";
1712
1713         my $refs = read_info_ref();
1714         my $ref = "";
1715         if (defined $refs->{$hash_base}) {
1716                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1717         }
1718         git_header_html();
1719         my $base_key = "";
1720         my $base = "";
1721         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1722                 $base_key = ";hb=$hash_base";
1723                 print "<div class=\"page_nav\">\n" .
1724                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1725                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
1726                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
1727                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1728                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1729                       " | tree" .
1730                       "<br/><br/>\n" .
1731                       "</div>\n";
1732                 print "<div>\n" .
1733                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1734                       "</div>\n";
1735         } else {
1736                 print "<div class=\"page_nav\">\n";
1737                 print "<br/><br/></div>\n";
1738                 print "<div class=\"title\">$hash</div>\n";
1739         }
1740         if (defined $file_name) {
1741                 $base = esc_html("$file_name/");
1742         }
1743         git_print_page_path($file_name);
1744         print "<div class=\"page_body\">\n";
1745         print "<table cellspacing=\"0\">\n";
1746         my $alternate = 0;
1747         foreach my $line (@entries) {
1748                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1749                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1750                 my $t_mode = $1;
1751                 my $t_type = $2;
1752                 my $t_hash = $3;
1753                 my $t_name = validate_input($4);
1754                 if ($alternate) {
1755                         print "<tr class=\"dark\">\n";
1756                 } else {
1757                         print "<tr class=\"light\">\n";
1758                 }
1759                 $alternate ^= 1;
1760                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
1761                 if ($t_type eq "blob") {
1762                         print "<td class=\"list\">" .
1763                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1764                               "</td>\n" .
1765                               "<td class=\"link\">" .
1766                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1767 #                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
1768                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
1769                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
1770                               "</td>\n";
1771                 } elsif ($t_type eq "tree") {
1772                         print "<td class=\"list\">" .
1773                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1774                               "</td>\n" .
1775                               "<td class=\"link\">" .
1776                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1777                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
1778                               "</td>\n";
1779                 }
1780                 print "</tr>\n";
1781         }
1782         print "</table>\n" .
1783               "</div>";
1784         git_footer_html();
1785 }
1786
1787 sub git_rss {
1788         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1789         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
1790                 or die_error(undef, "Open failed.");
1791         my (@revlist) = map { chomp; $_ } <$fd>;
1792         close $fd or die_error(undef, "Reading rev-list failed.");
1793         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1794         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1795               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1796         print "<channel>\n";
1797         print "<title>$project</title>\n".
1798               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1799               "<description>$project log</description>\n".
1800               "<language>en</language>\n";
1801
1802         for (my $i = 0; $i <= $#revlist; $i++) {
1803                 my $commit = $revlist[$i];
1804                 my %co = git_read_commit($commit);
1805                 # we read 150, we always show 30 and the ones more recent than 48 hours
1806                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1807                         last;
1808                 }
1809                 my %cd = date_str($co{'committer_epoch'});
1810                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
1811                 my @difftree = map { chomp; $_ } <$fd>;
1812                 close $fd or next;
1813                 print "<item>\n" .
1814                       "<title>" .
1815                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1816                       "</title>\n" .
1817                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1818                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1819                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1820                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1821                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1822                       "<content:encoded>" .
1823                       "<![CDATA[\n";
1824                 my $comment = $co{'comment'};
1825                 foreach my $line (@$comment) {
1826                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1827                         print "$line<br/>\n";
1828                 }
1829                 print "<br/>\n";
1830                 foreach my $line (@difftree) {
1831                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1832                                 next;
1833                         }
1834                         my $file = validate_input(unquote($7));
1835                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1836                         print "$file<br/>\n";
1837                 }
1838                 print "]]>\n" .
1839                       "</content:encoded>\n" .
1840                       "</item>\n";
1841         }
1842         print "</channel></rss>";
1843 }
1844
1845 sub git_opml {
1846         my @list = git_read_projects();
1847
1848         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1849         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1850               "<opml version=\"1.0\">\n".
1851               "<head>".
1852               "  <title>$site_name Git OPML Export</title>\n".
1853               "</head>\n".
1854               "<body>\n".
1855               "<outline text=\"git RSS feeds\">\n";
1856
1857         foreach my $pr (@list) {
1858                 my %proj = %$pr;
1859                 my $head = git_read_head($proj{'path'});
1860                 if (!defined $head) {
1861                         next;
1862                 }
1863                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1864                 my %co = git_read_commit($head);
1865                 if (!%co) {
1866                         next;
1867                 }
1868
1869                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1870                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
1871                 my $html = "$my_url?p=$proj{'path'};a=summary";
1872                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1873         }
1874         print "</outline>\n".
1875               "</body>\n".
1876               "</opml>\n";
1877 }
1878
1879 sub git_log {
1880         my $head = git_read_head($project);
1881         if (!defined $hash) {
1882                 $hash = $head;
1883         }
1884         if (!defined $page) {
1885                 $page = 0;
1886         }
1887         my $refs = read_info_ref();
1888         git_header_html();
1889         print "<div class=\"page_nav\">\n";
1890         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1891               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1892               " | log" .
1893               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1894               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
1895               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
1896
1897         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1898         open my $fd, "-|", $GIT, "rev-list", $limit, $hash or die_error(undef, "Open failed.");
1899         my (@revlist) = map { chomp; $_ } <$fd>;
1900         close $fd;
1901
1902         if ($hash ne $head || $page) {
1903                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1904         } else {
1905                 print "HEAD";
1906         }
1907         if ($page > 0) {
1908                 print " &sdot; " .
1909                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1910         } else {
1911                 print " &sdot; prev";
1912         }
1913         if ($#revlist >= (100 * ($page+1)-1)) {
1914                 print " &sdot; " .
1915                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1916         } else {
1917                 print " &sdot; next";
1918         }
1919         print "<br/>\n" .
1920               "</div>\n";
1921         if (!@revlist) {
1922                 print "<div>\n" .
1923                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1924                       "</div>\n";
1925                 my %co = git_read_commit($hash);
1926                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1927         }
1928         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1929                 my $commit = $revlist[$i];
1930                 my $ref = "";
1931                 if (defined $refs->{$commit}) {
1932                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1933                 }
1934                 my %co = git_read_commit($commit);
1935                 next if !%co;
1936                 my %ad = date_str($co{'author_epoch'});
1937                 print "<div>\n" .
1938                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1939                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1940                 print "</div>\n";
1941                 print "<div class=\"title_text\">\n" .
1942                       "<div class=\"log_link\">\n" .
1943                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1944                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1945                       "<br/>\n" .
1946                       "</div>\n" .
1947                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1948                       "</div>\n" .
1949                       "<div class=\"log_body\">\n";
1950                 my $comment = $co{'comment'};
1951                 my $empty = 0;
1952                 foreach my $line (@$comment) {
1953                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1954                                 next;
1955                         }
1956                         if ($line eq "") {
1957                                 if ($empty) {
1958                                         next;
1959                                 }
1960                                 $empty = 1;
1961                         } else {
1962                                 $empty = 0;
1963                         }
1964                         print format_log_line_html($line) . "<br/>\n";
1965                 }
1966                 if (!$empty) {
1967                         print "<br/>\n";
1968                 }
1969                 print "</div>\n";
1970         }
1971         git_footer_html();
1972 }
1973
1974 sub git_commit {
1975         my %co = git_read_commit($hash);
1976         if (!%co) {
1977                 die_error(undef, "Unknown commit object.");
1978         }
1979         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1980         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1981
1982         my @difftree;
1983         my $parent = $co{'parent'};
1984         if (!defined $parent) {
1985                 $parent = "--root";
1986         }
1987         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
1988                 or die_error(undef, "Open failed.");
1989         @difftree = map { chomp; $_ } <$fd>;
1990         close $fd or die_error(undef, "Reading git-diff-tree failed.");
1991
1992         # non-textual hash id's can be cached
1993         my $expires;
1994         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1995                 $expires = "+1d";
1996         }
1997         my $refs = read_info_ref();
1998         my $ref = "";
1999         if (defined $refs->{$co{'id'}}) {
2000                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2001         }
2002         git_header_html(undef, $expires);
2003         print "<div class=\"page_nav\">\n" .
2004               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2005               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
2006               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2007               " | commit";
2008         if (defined $co{'parent'}) {
2009                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
2010         }
2011         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
2012                 "<br/>\n";
2013         if (defined $file_name && defined $co{'parent'}) {
2014                 my $parent = $co{'parent'};
2015                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame") . "\n";
2016         }
2017         print "<br/></div>\n";
2018
2019         if (defined $co{'parent'}) {
2020                 print "<div>\n" .
2021                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2022                       "</div>\n";
2023         } else {
2024                 print "<div>\n" .
2025                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2026                       "</div>\n";
2027         }
2028         print "<div class=\"title_text\">\n" .
2029               "<table cellspacing=\"0\">\n";
2030         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2031               "<tr>" .
2032               "<td></td><td> $ad{'rfc2822'}";
2033         if ($ad{'hour_local'} < 6) {
2034                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2035         } else {
2036                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2037         }
2038         print "</td>" .
2039               "</tr>\n";
2040         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2041         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2042         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2043         print "<tr>" .
2044               "<td>tree</td>" .
2045               "<td class=\"sha1\">" .
2046               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
2047               "</td>" .
2048               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2049               "</td>" .
2050               "</tr>\n";
2051         my $parents = $co{'parents'};
2052         foreach my $par (@$parents) {
2053                 print "<tr>" .
2054                       "<td>parent</td>" .
2055                       "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
2056                       "<td class=\"link\">" .
2057                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
2058                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
2059                       "</td>" .
2060                       "</tr>\n";
2061         }
2062         print "</table>".
2063               "</div>\n";
2064         print "<div class=\"page_body\">\n";
2065         my $comment = $co{'comment'};
2066         my $empty = 0;
2067         my $signed = 0;
2068         foreach my $line (@$comment) {
2069                 # print only one empty line
2070                 if ($line eq "") {
2071                         if ($empty || $signed) {
2072                                 next;
2073                         }
2074                         $empty = 1;
2075                 } else {
2076                         $empty = 0;
2077                 }
2078                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2079                         $signed = 1;
2080                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2081                 } else {
2082                         $signed = 0;
2083                         print format_log_line_html($line) . "<br/>\n";
2084                 }
2085         }
2086         print "</div>\n";
2087         print "<div class=\"list_head\">\n";
2088         if ($#difftree > 10) {
2089                 print(($#difftree + 1) . " files changed:\n");
2090         }
2091         print "</div>\n";
2092         print "<table class=\"diff_tree\">\n";
2093         my $alternate = 0;
2094         foreach my $line (@difftree) {
2095                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2096                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2097                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2098                         next;
2099                 }
2100                 my $from_mode = $1;
2101                 my $to_mode = $2;
2102                 my $from_id = $3;
2103                 my $to_id = $4;
2104                 my $status = $5;
2105                 my $similarity = $6;
2106                 my $file = validate_input(unquote($7));
2107                 if ($alternate) {
2108                         print "<tr class=\"dark\">\n";
2109                 } else {
2110                         print "<tr class=\"light\">\n";
2111                 }
2112                 $alternate ^= 1;
2113                 if ($status eq "A") {
2114                         my $mode_chng = "";
2115                         if (S_ISREG(oct $to_mode)) {
2116                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
2117                         }
2118                         print "<td>" .
2119                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2120                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
2121                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
2122                 } elsif ($status eq "D") {
2123                         print "<td>" .
2124                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2125                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
2126                               "<td class=\"link\">" .
2127                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
2128                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
2129                               "</td>\n"
2130                 } elsif ($status eq "M" || $status eq "T") {
2131                         my $mode_chnge = "";
2132                         if ($from_mode != $to_mode) {
2133                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
2134                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
2135                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
2136                                 }
2137                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
2138                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
2139                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
2140                                         } elsif (S_ISREG($to_mode)) {
2141                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
2142                                         }
2143                                 }
2144                                 $mode_chnge .= "]</span>\n";
2145                         }
2146                         print "<td>";
2147                         if ($to_id ne $from_id) {
2148                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2149                         } else {
2150                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2151                         }
2152                         print "</td>\n" .
2153                               "<td>$mode_chnge</td>\n" .
2154                               "<td class=\"link\">";
2155                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
2156                         if ($to_id ne $from_id) {
2157                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
2158                         }
2159                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
2160                         print "</td>\n";
2161                 } elsif ($status eq "R") {
2162                         my ($from_file, $to_file) = split "\t", $file;
2163                         my $mode_chng = "";
2164                         if ($from_mode != $to_mode) {
2165                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
2166                         }
2167                         print "<td>" .
2168                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
2169                               "<td><span class=\"file_status moved\">[moved from " .
2170                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
2171                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
2172                               "<td class=\"link\">" .
2173                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
2174                         if ($to_id ne $from_id) {
2175                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
2176                         }
2177                         print "</td>\n";
2178                 }
2179                 print "</tr>\n";
2180         }
2181         print "</table>\n";
2182         git_footer_html();
2183 }
2184
2185 sub git_blobdiff {
2186         mkdir($git_temp, 0700);
2187         git_header_html();
2188         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
2189                 print "<div class=\"page_nav\">\n" .
2190                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2191                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2192                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2193                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
2194                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
2195                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
2196                       "<br/>\n";
2197                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
2198                       "</div>\n";
2199                 print "<div>\n" .
2200                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2201                       "</div>\n";
2202         } else {
2203                 print "<div class=\"page_nav\">\n" .
2204                       "<br/><br/></div>\n" .
2205                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2206         }
2207         git_print_page_path($file_name, "blob");
2208         print "<div class=\"page_body\">\n" .
2209               "<div class=\"diff_info\">blob:" .
2210               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2211               " -> blob:" .
2212               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2213               "</div>\n";
2214         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2215         print "</div>";
2216         git_footer_html();
2217 }
2218
2219 sub git_blobdiff_plain {
2220         mkdir($git_temp, 0700);
2221         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2222         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2223 }
2224
2225 sub git_commitdiff {
2226         mkdir($git_temp, 0700);
2227         my %co = git_read_commit($hash);
2228         if (!%co) {
2229                 die_error(undef, "Unknown commit object.");
2230         }
2231         if (!defined $hash_parent) {
2232                 $hash_parent = $co{'parent'};
2233         }
2234         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2235                 or die_error(undef, "Open failed.");
2236         my (@difftree) = map { chomp; $_ } <$fd>;
2237         close $fd or die_error(undef, "Reading diff-tree failed.");
2238
2239         # non-textual hash id's can be cached
2240         my $expires;
2241         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2242                 $expires = "+1d";
2243         }
2244         my $refs = read_info_ref();
2245         my $ref = "";
2246         if (defined $refs->{$co{'id'}}) {
2247                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2248         }
2249         git_header_html(undef, $expires);
2250         print "<div class=\"page_nav\">\n" .
2251               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2252               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
2253               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2254               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2255               " | commitdiff" .
2256               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
2257         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
2258               "</div>\n";
2259         print "<div>\n" .
2260               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2261               "</div>\n";
2262         print "<div class=\"page_body\">\n";
2263         my $comment = $co{'comment'};
2264         my $empty = 0;
2265         my $signed = 0;
2266         my @log = @$comment;
2267         # remove first and empty lines after that
2268         shift @log;
2269         while (defined $log[0] && $log[0] eq "") {
2270                 shift @log;
2271         }
2272         foreach my $line (@log) {
2273                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2274                         next;
2275                 }
2276                 if ($line eq "") {
2277                         if ($empty) {
2278                                 next;
2279                         }
2280                         $empty = 1;
2281                 } else {
2282                         $empty = 0;
2283                 }
2284                 print format_log_line_html($line) . "<br/>\n";
2285         }
2286         print "<br/>\n";
2287         foreach my $line (@difftree) {
2288                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2289                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2290                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2291                 my $from_mode = $1;
2292                 my $to_mode = $2;
2293                 my $from_id = $3;
2294                 my $to_id = $4;
2295                 my $status = $5;
2296                 my $file = validate_input(unquote($6));
2297                 if ($status eq "A") {
2298                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2299                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2300                               "</div>\n";
2301                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2302                 } elsif ($status eq "D") {
2303                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2304                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2305                               "</div>\n";
2306                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2307                 } elsif ($status eq "M") {
2308                         if ($from_id ne $to_id) {
2309                                 print "<div class=\"diff_info\">" .
2310                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2311                                       " -> " .
2312                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2313                                 print "</div>\n";
2314                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2315                         }
2316                 }
2317         }
2318         print "<br/>\n" .
2319               "</div>";
2320         git_footer_html();
2321 }
2322
2323 sub git_commitdiff_plain {
2324         mkdir($git_temp, 0700);
2325         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2326                 or die_error(undef, "Open failed.");
2327         my (@difftree) = map { chomp; $_ } <$fd>;
2328         close $fd or die_error(undef, "Reading diff-tree failed.");
2329
2330         # try to figure out the next tag after this commit
2331         my $tagname;
2332         my $refs = read_info_ref("tags");
2333         open $fd, "-|", $GIT, "rev-list", "HEAD";
2334         chomp (my (@commits) = <$fd>);
2335         close $fd;
2336         foreach my $commit (@commits) {
2337                 if (defined $refs->{$commit}) {
2338                         $tagname = $refs->{$commit}
2339                 }
2340                 if ($commit eq $hash) {
2341                         last;
2342                 }
2343         }
2344
2345         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2346         my %co = git_read_commit($hash);
2347         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2348         my $comment = $co{'comment'};
2349         print "From: $co{'author'}\n" .
2350               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2351               "Subject: $co{'title'}\n";
2352         if (defined $tagname) {
2353                 print "X-Git-Tag: $tagname\n";
2354         }
2355         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2356               "\n";
2357
2358         foreach my $line (@$comment) {;
2359                 print "$line\n";
2360         }
2361         print "---\n\n";
2362
2363         foreach my $line (@difftree) {
2364                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2365                 my $from_id = $3;
2366                 my $to_id = $4;
2367                 my $status = $5;
2368                 my $file = $6;
2369                 if ($status eq "A") {
2370                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2371                 } elsif ($status eq "D") {
2372                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2373                 } elsif ($status eq "M") {
2374                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2375                 }
2376         }
2377 }
2378
2379 sub git_history {
2380         if (!defined $hash_base) {
2381                 $hash_base = git_read_head($project);
2382         }
2383         my $ftype;
2384         my %co = git_read_commit($hash_base);
2385         if (!%co) {
2386                 die_error(undef, "Unknown commit object.");
2387         }
2388         my $refs = read_info_ref();
2389         git_header_html();
2390         print "<div class=\"page_nav\">\n" .
2391               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2392               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2393               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2394               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
2395               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
2396               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
2397               "<br/><br/>\n" .
2398               "</div>\n";
2399         print "<div>\n" .
2400               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2401               "</div>\n";
2402         if (!defined $hash && defined $file_name) {
2403                 $hash = git_get_hash_by_path($hash_base, $file_name);
2404         }
2405         if (defined $hash) {
2406                 $ftype = git_get_type($hash);
2407         }
2408         git_print_page_path($file_name, $ftype);
2409
2410         open my $fd, "-|",
2411                 $GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
2412         print "<table cellspacing=\"0\">\n";
2413         my $alternate = 0;
2414         while (my $line = <$fd>) {
2415                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2416                         my $commit = $1;
2417                         my %co = git_read_commit($commit);
2418                         if (!%co) {
2419                                 next;
2420                         }
2421                         my $ref = "";
2422                         if (defined $refs->{$commit}) {
2423                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2424                         }
2425                         if ($alternate) {
2426                                 print "<tr class=\"dark\">\n";
2427                         } else {
2428                                 print "<tr class=\"light\">\n";
2429                         }
2430                         $alternate ^= 1;
2431                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2432                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2433                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2434                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2435                               "<td class=\"link\">" .
2436                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2437                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2438                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2439                         my $blob = git_get_hash_by_path($hash_base, $file_name);
2440                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2441                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2442                                 print " | " .
2443                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2444                                 "diff to current");
2445                         }
2446                         print "</td>\n" .
2447                               "</tr>\n";
2448                 }
2449         }
2450         print "</table>\n";
2451         close $fd;
2452         git_footer_html();
2453 }
2454
2455 sub git_search {
2456         if (!defined $searchtext) {
2457                 die_error("", "Text field empty.");
2458         }
2459         if (!defined $hash) {
2460                 $hash = git_read_head($project);
2461         }
2462         my %co = git_read_commit($hash);
2463         if (!%co) {
2464                 die_error(undef, "Unknown commit object.");
2465         }
2466         # pickaxe may take all resources of your box and run for several minutes
2467         # with every query - so decide by yourself how public you make this feature :)
2468         my $commit_search = 1;
2469         my $author_search = 0;
2470         my $committer_search = 0;
2471         my $pickaxe_search = 0;
2472         if ($searchtext =~ s/^author\\://i) {
2473                 $author_search = 1;
2474         } elsif ($searchtext =~ s/^committer\\://i) {
2475                 $committer_search = 1;
2476         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2477                 $commit_search = 0;
2478                 $pickaxe_search = 1;
2479         }
2480         git_header_html();
2481         print "<div class=\"page_nav\">\n" .
2482               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
2483               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2484               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2485               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2486               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2487               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2488               "<br/><br/>\n" .
2489               "</div>\n";
2490
2491         print "<div>\n" .
2492               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2493               "</div>\n";
2494         print "<table cellspacing=\"0\">\n";
2495         my $alternate = 0;
2496         if ($commit_search) {
2497                 $/ = "\0";
2498                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2499                 while (my $commit_text = <$fd>) {
2500                         if (!grep m/$searchtext/i, $commit_text) {
2501                                 next;
2502                         }
2503                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2504                                 next;
2505                         }
2506                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2507                                 next;
2508                         }
2509                         my @commit_lines = split "\n", $commit_text;
2510                         my %co = git_read_commit(undef, \@commit_lines);
2511                         if (!%co) {
2512                                 next;
2513                         }
2514                         if ($alternate) {
2515                                 print "<tr class=\"dark\">\n";
2516                         } else {
2517                                 print "<tr class=\"light\">\n";
2518                         }
2519                         $alternate ^= 1;
2520                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2521                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2522                               "<td>" .
2523                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2524                         my $comment = $co{'comment'};
2525                         foreach my $line (@$comment) {
2526                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2527                                         my $lead = esc_html($1) || "";
2528                                         $lead = chop_str($lead, 30, 10);
2529                                         my $match = esc_html($2) || "";
2530                                         my $trail = esc_html($3) || "";
2531                                         $trail = chop_str($trail, 30, 10);
2532                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2533                                         print chop_str($text, 80, 5) . "<br/>\n";
2534                                 }
2535                         }
2536                         print "</td>\n" .
2537                               "<td class=\"link\">" .
2538                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2539                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2540                         print "</td>\n" .
2541                               "</tr>\n";
2542                 }
2543                 close $fd;
2544         }
2545
2546         if ($pickaxe_search) {
2547                 $/ = "\n";
2548                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2549                 undef %co;
2550                 my @files;
2551                 while (my $line = <$fd>) {
2552                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2553                                 my %set;
2554                                 $set{'file'} = $6;
2555                                 $set{'from_id'} = $3;
2556                                 $set{'to_id'} = $4;
2557                                 $set{'id'} = $set{'to_id'};
2558                                 if ($set{'id'} =~ m/0{40}/) {
2559                                         $set{'id'} = $set{'from_id'};
2560                                 }
2561                                 if ($set{'id'} =~ m/0{40}/) {
2562                                         next;
2563                                 }
2564                                 push @files, \%set;
2565                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2566                                 if (%co) {
2567                                         if ($alternate) {
2568                                                 print "<tr class=\"dark\">\n";
2569                                         } else {
2570                                                 print "<tr class=\"light\">\n";
2571                                         }
2572                                         $alternate ^= 1;
2573                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2574                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2575                                               "<td>" .
2576                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2577                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2578                                         while (my $setref = shift @files) {
2579                                                 my %set = %$setref;
2580                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2581                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2582                                                       "<br/>\n";
2583                                         }
2584                                         print "</td>\n" .
2585                                               "<td class=\"link\">" .
2586                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2587                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2588                                         print "</td>\n" .
2589                                               "</tr>\n";
2590                                 }
2591                                 %co = git_read_commit($1);
2592                         }
2593                 }
2594                 close $fd;
2595         }
2596         print "</table>\n";
2597         git_footer_html();
2598 }
2599
2600 sub git_shortlog {
2601         my $head = git_read_head($project);
2602         if (!defined $hash) {
2603                 $hash = $head;
2604         }
2605         if (!defined $page) {
2606                 $page = 0;
2607         }
2608         my $refs = read_info_ref();
2609         git_header_html();
2610         print "<div class=\"page_nav\">\n" .
2611               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2612               " | shortlog" .
2613               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2614               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2615               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2616               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
2617
2618         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2619         open my $fd, "-|", $GIT, "rev-list", $limit, $hash or die_error(undef, "Open failed.");
2620         my (@revlist) = map { chomp; $_ } <$fd>;
2621         close $fd;
2622
2623         if ($hash ne $head || $page) {
2624                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2625         } else {
2626                 print "HEAD";
2627         }
2628         if ($page > 0) {
2629                 print " &sdot; " .
2630                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2631         } else {
2632                 print " &sdot; prev";
2633         }
2634         if ($#revlist >= (100 * ($page+1)-1)) {
2635                 print " &sdot; " .
2636                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2637         } else {
2638                 print " &sdot; next";
2639         }
2640         print "<br/>\n" .
2641               "</div>\n";
2642         print "<div>\n" .
2643               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2644               "</div>\n";
2645         print "<table cellspacing=\"0\">\n";
2646         my $alternate = 0;
2647         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2648                 my $commit = $revlist[$i];
2649                 my $ref = "";
2650                 if (defined $refs->{$commit}) {
2651                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2652                 }
2653                 my %co = git_read_commit($commit);
2654                 my %ad = date_str($co{'author_epoch'});
2655                 if ($alternate) {
2656                         print "<tr class=\"dark\">\n";
2657                 } else {
2658                         print "<tr class=\"light\">\n";
2659                 }
2660                 $alternate ^= 1;
2661                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2662                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2663                       "<td>";
2664                 if (length($co{'title_short'}) < length($co{'title'})) {
2665                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2666                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2667                 } else {
2668                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2669                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2670                 }
2671                 print "</td>\n" .
2672                       "<td class=\"link\">" .
2673                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2674                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2675                       "</td>\n" .
2676                       "</tr>";
2677         }
2678         if ($#revlist >= (100 * ($page+1)-1)) {
2679                 print "<tr>\n" .
2680                       "<td>" .
2681                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2682                       "</td>\n" .
2683                       "</tr>\n";
2684         }
2685         print "</table\n>";
2686         git_footer_html();
2687 }