gitweb.cgi

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke <ch@gierke.de>
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Temp qw(tempfile);
  18 binmode STDOUT, ':utf8';
  19
  20 my $cgi = new CGI;
  21 my $version =           "264";
  22 my $my_url =            $cgi->url();
  23 my $my_uri =            $cgi->url(-absolute => 1);
  24 my $rss_link =          "";
  25
  26 # absolute fs-path which will be prepended to the project path
  27 #my $projectroot =      "/pub/scm";
  28 my $projectroot =       "/home/kay/public_html/pub/scm";
  29
  30 # location of the git-core binaries
  31 my $gitbin =            "/usr/bin";
  32
  33 # location for temporary files needed for diffs
  34 my $git_temp =          "/tmp/gitweb";
  35
  36 # target of the home link on top of all pages
  37 my $home_link =         $my_uri;
  38
  39 # html text to include at home page
  40 my $home_text =         "indextext.html";
  41
  42 # source of projects list
  43 #my $projects_list =    $projectroot;
  44 my $projects_list =     "index/index.aux";
  45
  46 # where to find etags
  47 my $etagsbin = "etags";
  48
  49 my $snapshots_url = "http://git.xmms.se/snapshot.cgi";
  50 my $git_base_url = "git://git.xmms.se/xmms2";
  51
  52 # syntax highlighting
  53 my %highlight = (
  54         "SConstruct" => "py",
  55         "Program" => "py",
  56         "Library" => "py",
  57         "\.py\$" => "py",
  58         "\.c\$" => "c",
  59         "\.h\$" => "c",
  60         "\.cpp\$" => "cpp",
  61         "\.rb\$" => "ruby",
  62         "\.java\$" => "java",
  63         "\.cgi\$" => "pl",
  64         "\.css\$" => "css",
  65         "\.cfg\$" => "ini",
  66         "\.kid\$" => "html",
  67         "Makefile" => "make",
  68         "\.pyx\$" => "pyx",
  69         "\.js\$" => "js",
  70 );
  71
  72 # custom stuff - mantis/commit tags integration
  73 sub committags_real {
  74         my $a = shift;
  75         my $href = shift || undef;
  76         my $class = shift || "";
  77         my $aStart = "";
  78         my $aEnd = "";
  79         if (defined $href) {
  80                 $aStart = "</a>";
  81                 if ($class ne "") {
  82                         $class = "class=\"$class\"";
  83                 }
  84                 $aEnd = "<a $class href=\"$href\">";
  85         }
  86         $a =~ s!BUG\(([0-9]*)\)!$aStart<a href="http://bugs.xmms2.xmms.se/view.php?id=$1">BUG($1)</a>$aEnd!g;
  87         $a =~ s!FEATURE\(([0-9]*)\)!$aStart<a href="http://bugs.xmms2.xmms.se/view.php?id=$1">FEATURE($1)</a>$aEnd!g;
  88         $a =~ s!RELEASE: (.*)!RELEASE: $aStart<a href="http://wiki.xmms2.xmms.se/index.php/Release:$1">$1</a>$aEnd!g;
  89         return $a;
  90 }
  91
  92 sub committags($){
  93         my $a = shift;
  94         return committags_real($a);
  95 }
  96 sub committags_shortlog($$){
  97         my $a = shift;
  98         my $href = shift;
  99         return committags_real($a, $href, "list");
 100 }
 101
 102 # custom stuff - refactored navbar
 103 sub git_navbar($$$$) {
 104         my $project = shift;
 105         my $head = shift;
 106         my $curSection = shift;
 107         my $extraLinks = shift;
 108
 109         my $sumLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary");
 110         my $slogLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog");
 111         my $logLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log");
 112         my $comLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit");
 113         my $comdifLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff");
 114         my $treeLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree");
 115         my $snapLink = $cgi->a({-href => "$snapshots_url?tree=$project&commit=HEAD"}, "latest snapshot");
 116
 117         if ($curSection eq "summary") {
 118                 $sumLink = "summary";
 119         }
 120         elsif ($curSection eq "shortlog") {
 121                 $slogLink = "shortlog";
 122         }
 123         elsif ($curSection eq "log") {
 124                 $logLink = "log";
 125         }
 126         elsif ($curSection eq "commit") {
 127                 $comLink = "commit";
 128         }
 129         elsif ($curSection eq "commitdiff") {
 130                 $comdifLink = "commitdiff";
 131         }
 132         elsif ($curSection eq "tree") {
 133                 $treeLink = "tree";
 134         }
 135
 136         my $retVal = "<div class=\"page_nav\">\n" .
 137               $sumLink .
 138               " | " . $slogLink .
 139               " | " . $logLink .
 140               " | " . $comLink .
 141               " | " . $comdifLink .
 142               " | " . $treeLink .
 143               " | " . $snapLink .
 144               "<br/>$extraLinks<br/>\n" .
 145               "</div>\n";
 146         return $retVal;
 147 }
 148
 149 # input validation and dispatch
 150 my $action = $cgi->param('a');
 151 if (defined $action) {
 152         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 153                 undef $action;
 154                 die_error(undef, "Invalid action parameter.");
 155         }
 156         if ($action eq "git-logo.png") {
 157                 git_logo();
 158                 exit;
 159         } elsif ($action eq "opml") {
 160                 git_opml();
 161                 exit;
 162         }
 163 }
 164
 165 my $order = $cgi->param('o');
 166 if (defined $order) {
 167         if ($order =~ m/[^0-9a-zA-Z_]/) {
 168                 undef $order;
 169                 die_error(undef, "Invalid order parameter.");
 170         }
 171 }
 172
 173 my $project = $cgi->param('p');
 174 if (defined $project) {
 175         $project = validate_input($project);
 176         if (!defined($project)) {
 177                 die_error(undef, "Invalid project parameter.");
 178         }
 179         if (!(-d "$projectroot/$project")) {
 180                 undef $project;
 181                 die_error(undef, "No such directory.");
 182         }
 183         if (!(-e "$projectroot/$project/HEAD")) {
 184                 undef $project;
 185                 die_error(undef, "No such project.");
 186         }
 187         $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
 188                     "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
 189         $ENV{'GIT_DIR'} = "$projectroot/$project";
 190 } else {
 191         git_project_list();
 192         exit;
 193 }
 194
 195 my $file_name = $cgi->param('f');
 196 if (defined $file_name) {
 197         $file_name = validate_input($file_name);
 198         if (!defined($file_name)) {
 199                 die_error(undef, "Invalid file parameter.");
 200         }
 201 }
 202
 203 my $hash = $cgi->param('h');
 204 if (defined $hash) {
 205         $hash = validate_input($hash);
 206         if (!defined($hash)) {
 207                 die_error(undef, "Invalid hash parameter.");
 208         }
 209 }
 210
 211 my $hash_parent = $cgi->param('hp');
 212 if (defined $hash_parent) {
 213         $hash_parent = validate_input($hash_parent);
 214         if (!defined($hash_parent)) {
 215                 die_error(undef, "Invalid hash parent parameter.");
 216         }
 217 }
 218
 219 my $hash_base = $cgi->param('hb');
 220 if (defined $hash_base) {
 221         $hash_base = validate_input($hash_base);
 222         if (!defined($hash_base)) {
 223                 die_error(undef, "Invalid hash base parameter.");
 224         }
 225 }
 226
 227 my $page = $cgi->param('pg');
 228 if (defined $page) {
 229         if ($page =~ m/[^0-9]$/) {
 230                 undef $page;
 231                 die_error(undef, "Invalid page parameter.");
 232         }
 233 }
 234
 235 my $searchtext = $cgi->param('s');
 236 if (defined $searchtext) {
 237         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 238                 undef $searchtext;
 239                 die_error(undef, "Invalid search parameter.");
 240         }
 241         $searchtext = quotemeta $searchtext;
 242 }
 243
 244 sub validate_input {
 245         my $input = shift;
 246
 247         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 248                 return $input;
 249         }
 250         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 251                 return undef;
 252         }
 253         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 254                 return undef;
 255         }
 256         return $input;
 257 }
 258
 259 if (!defined $action || $action eq "summary") {
 260         git_summary();
 261         exit;
 262 } elsif ($action eq "heads") {
 263         git_heads();
 264         exit;
 265 } elsif ($action eq "tags") {
 266         git_tags();
 267         exit;
 268 } elsif ($action eq "blob") {
 269         git_blob();
 270         exit;
 271 } elsif ($action eq "blob_plain") {
 272         git_blob_plain();
 273         exit;
 274 } elsif ($action eq "tree") {
 275         git_tree();
 276         exit;
 277 } elsif ($action eq "rss") {
 278         git_rss();
 279         exit;
 280 } elsif ($action eq "commit") {
 281         git_commit();
 282         exit;
 283 } elsif ($action eq "log") {
 284         git_log();
 285         exit;
 286 } elsif ($action eq "blobdiff") {
 287         git_blobdiff();
 288         exit;
 289 } elsif ($action eq "blobdiff_plain") {
 290         git_blobdiff_plain();
 291         exit;
 292 } elsif ($action eq "commitdiff") {
 293         git_commitdiff();
 294         exit;
 295 } elsif ($action eq "commitdiff_plain") {
 296         git_commitdiff_plain();
 297         exit;
 298 } elsif ($action eq "history") {
 299         git_history();
 300         exit;
 301 } elsif ($action eq "search") {
 302         git_search();
 303         exit;
 304 } elsif ($action eq "shortlog") {
 305         git_shortlog();
 306         exit;
 307 } elsif ($action eq "tag") {
 308         git_tag();
 309         exit;
 310 } else {
 311         undef $action;
 312         die_error(undef, "Unknown action.");
 313         exit;
 314 }
 315
 316 # quote unsafe chars, but keep the slash, even when it's not
 317 # correct, but quoted slashes look too horrible in bookmarks
 318 sub esc_param {
 319         my $str = shift;
 320         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 321         $str =~ s/\+/%2B/g;
 322         $str =~ s/ /\+/g;
 323         return $str;
 324 }
 325
 326 # replace invalid utf8 character with SUBSTITUTION sequence
 327 sub esc_html {
 328         my $str = shift;
 329         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 330         $str = escapeHTML($str);
 331         return $str;
 332 }
 333
 334 # git may return quoted and escaped filenames
 335 sub unquote {
 336         my $str = shift;
 337         if ($str =~ m/^"(.*)"$/) {
 338                 $str = $1;
 339                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 340         }
 341         return $str;
 342 }
 343
 344 sub git_header_html {
 345         my $status = shift || "200 OK";
 346         my $expires = shift;
 347
 348         my $title = "git";
 349         if (defined $project) {
 350                 $title .= " - $project";
 351                 if (defined $action) {
 352                         $title .= "/$action";
 353                 }
 354         }
 355         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status, -expires => $expires);
 356         print <<EOF;
 357 <?xml version="1.0" encoding="utf-8"?>
 358 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 359 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 360 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 361 <head>
 362 <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
 363 <meta name="robots" content="index, nofollow"/>
 364 <title>$title</title>
 365 $rss_link
 366 <link rel="stylesheet" type="text/css" href="gitweb-style.css"/>
 367 </head>
 368 <body>
 369 EOF
 370         print "<div class=\"page_header\">\n" .
 371               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 372               "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 373               "</a>\n";
 374         print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
 375         if (defined $project) {
 376                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
 377                 if (defined $action) {
 378                         print " / $action";
 379                 }
 380                 print "\n";
 381                 if (!defined $searchtext) {
 382                         $searchtext = "";
 383                 }
 384                 my $search_hash;
 385                 if (defined $hash) {
 386                         $search_hash = $hash;
 387                 } else {
 388                         $search_hash  = "HEAD";
 389                 }
 390                 $cgi->param("a", "search");
 391                 $cgi->param("h", $search_hash);
 392                 print $cgi->startform(-method => "get", -action => $my_uri) .
 393                       "<div class=\"search\">\n" .
 394                       $cgi->hidden(-name => "p") . "\n" .
 395                       $cgi->hidden(-name => "a") . "\n" .
 396                       $cgi->hidden(-name => "h") . "\n" .
 397                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 398                       "</div>" .
 399                       $cgi->end_form() . "\n";
 400         }
 401         print "</div>\n";
 402 }
 403
 404 sub git_footer_html {
 405         print "<div class=\"page_footer\">\n";
 406         if (defined $project) {
 407                 my $descr = git_read_description($project);
 408                 if (defined $descr) {
 409                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 410                 }
 411                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 412         } else {
 413                 print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 414         }
 415         print "</div>\n" .
 416               "</body>\n" .
 417               "</html>";
 418 }
 419
 420 sub die_error {
 421         my $status = shift || "403 Forbidden";
 422         my $error = shift || "Malformed query, file missing or permission denied";
 423
 424         git_header_html($status);
 425         print "<div class=\"page_body\">\n" .
 426               "<br/><br/>\n" .
 427               "$status - $error\n" .
 428               "<br/>\n" .
 429               "</div>\n";
 430         git_footer_html();
 431         exit;
 432 }
 433
 434 sub git_get_type {
 435         my $hash = shift;
 436
 437         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
 438         my $type = <$fd>;
 439         close $fd or return;
 440         chomp $type;
 441         return $type;
 442 }
 443
 444 sub git_read_head {
 445         my $project = shift;
 446         my $oENV = $ENV{'GIT_DIR'};
 447         my $retval = undef;
 448         $ENV{'GIT_DIR'} = "$projectroot/$project";
 449         if (open my $fd, "-|", "$gitbin/git-rev-parse", "--verify", "HEAD") {
 450                 my $head = <$fd>;
 451                 close $fd;
 452                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 453                         $retval = $1;
 454                 }
 455         }
 456         if (defined $oENV) {
 457                 $ENV{'GIT_DIR'} = $oENV;
 458         }
 459         return $retval;
 460 }
 461
 462 sub git_read_hash {
 463         my $path = shift;
 464
 465         open my $fd, "$projectroot/$path" or return undef;
 466         my $head = <$fd>;
 467         close $fd;
 468         chomp $head;
 469         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 470                 return $head;
 471         }
 472 }
 473
 474 sub git_read_file {
 475         my $path = shift;
 476         open my $fd, "$path" or return undef;
 477         my $content = <$fd>;
 478         close $fd;
 479         chomp $content;
 480         return $content;
 481 }
 482
 483 sub git_read_description {
 484         my $path = shift;
 485         return git_read_file("$projectroot/$path/description");
 486 }
 487
 488 sub git_read_category {
 489         my $path = shift;
 490         return git_read_file("$projectroot/$path/category");
 491 }
 492
 493 sub git_read_tag {
 494         my $tag_id = shift;
 495         my %tag;
 496         my @comment;
 497
 498         open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
 499         $tag{'id'} = $tag_id;
 500         while (my $line = <$fd>) {
 501                 chomp $line;
 502                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 503                         $tag{'object'} = $1;
 504                 } elsif ($line =~ m/^type (.+)$/) {
 505                         $tag{'type'} = $1;
 506                 } elsif ($line =~ m/^tag (.+)$/) {
 507                         $tag{'name'} = $1;
 508                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 509                         $tag{'author'} = $1;
 510                         $tag{'epoch'} = $2;
 511                         $tag{'tz'} = $3;
 512                 } elsif ($line =~ m/--BEGIN/) {
 513                         push @comment, $line;
 514                         last;
 515                 } elsif ($line eq "") {
 516                         last;
 517                 }
 518         }
 519         push @comment, <$fd>;
 520         $tag{'comment'} = \@comment;
 521         close $fd or return;
 522         if (!defined $tag{'name'}) {
 523                 return
 524         };
 525         return %tag
 526 }
 527
 528 sub age_string {
 529         my $age = shift;
 530         my $age_str;
 531
 532         if ($age > 60*60*24*365*2) {
 533                 $age_str = (int $age/60/60/24/365);
 534                 $age_str .= " years ago";
 535         } elsif ($age > 60*60*24*(365/12)*2) {
 536                 $age_str = int $age/60/60/24/(365/12);
 537                 $age_str .= " months ago";
 538         } elsif ($age > 60*60*24*7*2) {
 539                 $age_str = int $age/60/60/24/7;
 540                 $age_str .= " weeks ago";
 541         } elsif ($age > 60*60*24*2) {
 542                 $age_str = int $age/60/60/24;
 543                 $age_str .= " days ago";
 544         } elsif ($age > 60*60*2) {
 545                 $age_str = int $age/60/60;
 546                 $age_str .= " hours ago";
 547         } elsif ($age > 60*2) {
 548                 $age_str = int $age/60;
 549                 $age_str .= " min ago";
 550         } elsif ($age > 2) {
 551                 $age_str = int $age;
 552                 $age_str .= " sec ago";
 553         } else {
 554                 $age_str .= " right now";
 555         }
 556         return $age_str;
 557 }
 558
 559 sub git_read_commit {
 560         my $commit_id = shift;
 561         my $commit_text = shift;
 562
 563         my @commit_lines;
 564         my %co;
 565
 566         if (defined $commit_text) {
 567                 @commit_lines = @$commit_text;
 568         } else {
 569                 $/ = "\0";
 570                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
 571                 @commit_lines = split '\n', <$fd>;
 572                 close $fd or return;
 573                 $/ = "\n";
 574                 pop @commit_lines;
 575         }
 576         my $header = shift @commit_lines;
 577         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 578                 return;
 579         }
 580         ($co{'id'}, my @parents) = split ' ', $header;
 581         $co{'parents'} = \@parents;
 582         $co{'parent'} = $parents[0];
 583         while (my $line = shift @commit_lines) {
 584                 last if $line eq "\n";
 585                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 586                         $co{'tree'} = $1;
 587                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 588                         $co{'author'} = $1;
 589                         $co{'author_epoch'} = $2;
 590                         $co{'author_tz'} = $3;
 591                         if ($co{'author'} =~ m/^([^<]+) </) {
 592                                 $co{'author_name'} = $1;
 593                         } else {
 594                                 $co{'author_name'} = $co{'author'};
 595                         }
 596                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 597                         $co{'committer'} = $1;
 598                         $co{'committer_epoch'} = $2;
 599                         $co{'committer_tz'} = $3;
 600                         $co{'committer_name'} = $co{'committer'};
 601                         $co{'committer_name'} =~ s/ <.*//;
 602                 }
 603         }
 604         if (!defined $co{'tree'}) {
 605                 return;
 606         };
 607
 608         foreach my $title (@commit_lines) {
 609                 $title =~ s/^    //;
 610                 if ($title ne "") {
 611                         $co{'title'} = chop_str($title, 80, 5);
 612                         # remove leading stuff of merges to make the interesting part visible
 613                         if (length($title) > 50) {
 614                                 $title =~ s/^Automatic //;
 615                                 $title =~ s/^merge (of|with) /Merge ... /i;
 616                                 if (length($title) > 50) {
 617                                         $title =~ s/(http|rsync):\/\///;
 618                                 }
 619                                 if (length($title) > 50) {
 620                                         $title =~ s/(master|www|rsync)\.//;
 621                                 }
 622                                 if (length($title) > 50) {
 623                                         $title =~ s/kernel.org:?//;
 624                                 }
 625                                 if (length($title) > 50) {
 626                                         $title =~ s/\/pub\/scm//;
 627                                 }
 628                         }
 629                         $co{'title_short'} = chop_str($title, 50, 5);
 630                         last;
 631                 }
 632         }
 633         # remove added spaces
 634         foreach my $line (@commit_lines) {
 635                 $line =~ s/^    //;
 636         }
 637         $co{'comment'} = \@commit_lines;
 638
 639         my $age = time - $co{'committer_epoch'};
 640         $co{'age'} = $age;
 641         $co{'age_string'} = age_string($age);
 642         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 643         if ($age > 60*60*24*7*2) {
 644                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 645                 $co{'age_string_age'} = $co{'age_string'};
 646         } else {
 647                 $co{'age_string_date'} = $co{'age_string'};
 648                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 649         }
 650         return %co;
 651 }
 652
 653 sub git_diff_print {
 654         my $from = shift;
 655         my $from_name = shift;
 656         my $to = shift;
 657         my $to_name = shift;
 658         my $format = shift || "html";
 659
 660         my $from_tmp = "/dev/null";
 661         my $to_tmp = "/dev/null";
 662         my $pid = $$;
 663
 664         # create tmp from-file
 665         if (defined $from) {
 666                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 667                 open my $fd2, "> $from_tmp";
 668                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 669                 my @file = <$fd>;
 670                 print $fd2 @file;
 671                 close $fd2;
 672                 close $fd;
 673         }
 674
 675         # create tmp to-file
 676         if (defined $to) {
 677                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 678                 open my $fd2, "> $to_tmp";
 679                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 680                 my @file = <$fd>;
 681                 print $fd2 @file;
 682                 close $fd2;
 683                 close $fd;
 684         }
 685
 686         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 687         if ($format eq "plain") {
 688                 undef $/;
 689                 print <$fd>;
 690                 $/ = "\n";
 691         } else {
 692                 while (my $line = <$fd>) {
 693                         chomp($line);
 694                         my $char = substr($line, 0, 1);
 695                         my $color = "";
 696                         if ($char eq '+') {
 697                                 $color = " style=\"color:#008800;\"";
 698                         } elsif ($char eq "-") {
 699                                 $color = " style=\"color:#cc0000;\"";
 700                         } elsif ($char eq "@") {
 701                                 $color = " style=\"color:#990099;\"";
 702                         } elsif ($char eq "\\") {
 703                                 # skip errors
 704                                 next;
 705                         }
 706                         while ((my $pos = index($line, "\t")) != -1) {
 707                                 if (my $count = (8 - (($pos-1) % 8))) {
 708                                         my $spaces = ' ' x $count;
 709                                         $line =~ s/\t/$spaces/;
 710                                 }
 711                         }
 712                         print "<div class=\"pre\"$color>" . esc_html($line) . "</div>\n";
 713                 }
 714         }
 715         close $fd;
 716
 717         if (defined $from) {
 718                 unlink($from_tmp);
 719         }
 720         if (defined $to) {
 721                 unlink($to_tmp);
 722         }
 723 }
 724
 725 sub mode_str {
 726         my $mode = oct shift;
 727
 728         if (S_ISDIR($mode & S_IFMT)) {
 729                 return 'drwxr-xr-x';
 730         } elsif (S_ISLNK($mode)) {
 731                 return 'lrwxrwxrwx';
 732         } elsif (S_ISREG($mode)) {
 733                 # git cares only about the executable bit
 734                 if ($mode & S_IXUSR) {
 735                         return '-rwxr-xr-x';
 736                 } else {
 737                         return '-rw-r--r--';
 738                 };
 739         } else {
 740                 return '----------';
 741         }
 742 }
 743
 744 sub chop_str {
 745         my $str = shift;
 746         my $len = shift;
 747         my $add_len = shift || 10;
 748
 749         # allow only $len chars, but don't cut a word if it would fit in $add_len
 750         # if it doesn't fit, cut it if it's still longer than the dots we would add
 751         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 752         my $body = $1;
 753         my $tail = $2;
 754         if (length($tail) > 4) {
 755                 $tail = " ...";
 756         }
 757         return "$body$tail";
 758 }
 759
 760 sub file_type {
 761         my $mode = oct shift;
 762
 763         if (S_ISDIR($mode & S_IFMT)) {
 764                 return "directory";
 765         } elsif (S_ISLNK($mode)) {
 766                 return "symlink";
 767         } elsif (S_ISREG($mode)) {
 768                 return "file";
 769         } else {
 770                 return "unknown";
 771         }
 772 }
 773
 774 sub format_log_line_html {
 775         my $line = shift;
 776
 777         $line = esc_html($line);
 778         $line =~ s/ /&nbsp;/g;
 779         if ($line =~ m/([0-9a-fA-F]{40})/) {
 780                 my $hash_text = $1;
 781                 if (git_get_type($hash_text) eq "commit") {
 782                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 783                         $line =~ s/$hash_text/$link/;
 784                 }
 785         }
 786         return committags($line);
 787 }
 788
 789 sub date_str {
 790         my $epoch = shift;
 791         my $tz = shift || "-0000";
 792
 793         my %date;
 794         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 795         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 796         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 797         $date{'hour'} = $hour;
 798         $date{'minute'} = $min;
 799         $date{'mday'} = $mday;
 800         $date{'day'} = $days[$wday];
 801         $date{'month'} = $months[$mon];
 802         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 803         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 804
 805         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 806         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 807         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 808         $date{'hour_local'} = $hour;
 809         $date{'minute_local'} = $min;
 810         $date{'tz_local'} = $tz;
 811         return %date;
 812 }
 813
 814 # git-logo (cached in browser for one day)
 815 sub git_logo {
 816         binmode STDOUT, ':raw';
 817         print $cgi->header(-type => 'image/png', -expires => '+1d');
 818         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 819         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 820                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 821                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 822                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 823                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 824                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 825                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 826                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 827                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 828                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 829                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 830                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 831                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 832 }
 833
 834 sub get_file_owner {
 835         my $path = shift;
 836
 837         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 838         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 839         if (!defined $gcos) {
 840                 return undef;
 841         }
 842         my $owner = $gcos;
 843         $owner =~ s/[,;].*$//;
 844         return $owner;
 845 }
 846
 847 sub git_read_projects {
 848         my @list;
 849
 850         if (-d $projects_list) {
 851                 # search in directory
 852                 my $dir = $projects_list;
 853                 opendir my $dh, $dir or return undef;
 854                 while (my $dir = readdir($dh)) {
 855                         if (-e "$projectroot/$dir/HEAD") {
 856                                 my $pr = {
 857                                         path => $dir,
 858                                 };
 859                                 push @list, $pr
 860                         }
 861                 }
 862                 closedir($dh);
 863         } elsif (-f $projects_list) {
 864                 # read from file(url-encoded):
 865                 # 'git%2Fgit.git Linus+Torvalds'
 866                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 867                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 868                 open my $fd , $projects_list or return undef;
 869                 while (my $line = <$fd>) {
 870                         chomp $line;
 871                         my ($path, $owner) = split ' ', $line;
 872                         $path = unescape($path);
 873                         $owner = unescape($owner);
 874                         if (!defined $path) {
 875                                 next;
 876                         }
 877                         if (-e "$projectroot/$path/HEAD") {
 878                                 my $pr = {
 879                                         path => $path,
 880                                         owner => $owner,
 881                                 };
 882                                 push @list, $pr
 883                         }
 884                 }
 885                 close $fd;
 886         }
 887         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 888         return @list;
 889 }
 890
 891 sub git_project_list {
 892         my @list = git_read_projects();
 893         my %projects;
 894         if (!@list) {
 895                 die_error(undef, "No project found.");
 896         }
 897         foreach my $pr (@list) {
 898                 my $head = git_read_head($pr->{'path'});
 899                 if (!defined $head) {
 900                         next;
 901                 }
 902                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 903                 my %co = git_read_commit($head);
 904                 if (!%co) {
 905                         next;
 906                 }
 907                 $pr->{'commit'} = \%co;
 908                 if (!defined $pr->{'descr'}) {
 909                         my $descr = git_read_description($pr->{'path'}) || "";
 910                         $pr->{'descr'} = chop_str($descr, 25, 5);
 911                 }
 912                 if (!defined $pr->{'category'}) {
 913                         my $cat = git_read_category($pr->{'path'}) || "Misc";
 914                         $pr->{'category'} = $cat;
 915                 }
 916                 if (!defined $pr->{'owner'}) {
 917                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 918                 }
 919                 if (defined $projects{$pr->{'category'}}) {
 920                         push @{$projects{$pr->{'category'}}}, $pr;
 921                 }
 922                 else {
 923                         my @catList = ($pr);
 924                         $projects{$pr->{'category'}} = \@catList;
 925                 }
 926         }
 927         git_header_html();
 928         if (-f $home_text) {
 929                 print "<div class=\"index_include\">\n";
 930                 open (my $fd, $home_text);
 931                 print <$fd>;
 932                 close $fd;
 933                 print "</div>\n";
 934         }
 935         print "<table cellspacing=\"0\">\n" .
 936               "<tr>\n";
 937         print "<th></th>\n" .
 938               "</tr>\n";
 939         my $alternate = 0;
 940         my $headRow = "";
 941         my $headDone = 0;
 942         foreach my $cat (sort keys %projects) {
 943                 my @catList = @{$projects{"$cat"}};
 944
 945                 if (!defined($order) || (defined($order) && ($order eq "project"))) {
 946                         @catList = sort {$a->{'path'} cmp $b->{'path'}} @catList;
 947                         $headRow .= "<th>Project</th>\n";
 948                 } else {
 949                         $headRow .= "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 950                 }
 951                 if (defined($order) && ($order eq "descr")) {
 952                         @catList = sort {$a->{'descr'} cmp $b->{'descr'}} @catList;
 953                         $headRow .= "<th>Description</th>\n";
 954                 } else {
 955                         $headRow .= "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 956                 }
 957                 if (defined($order) && ($order eq "owner")) {
 958                         @catList = sort {$a->{'owner'} cmp $b->{'owner'}} @catList;
 959                         $headRow .= "<th>Owner</th>\n";
 960                 } else {
 961                         $headRow .= "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 962                 }
 963                 if (defined($order) && ($order eq "age")) {
 964                         @catList = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @catList;
 965                         $headRow .= "<th>Last Change</th>\n";
 966                 } else {
 967                         $headRow .= "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 968                 }
 969
 970                 if (!$headDone) {
 971                         print '<tr>'.$headRow.'</tr>';
 972                         $headDone = 1;
 973                 }
 974
 975                 print "<tr><td colspan=\"5\"><b>" . $cat . "</b></td><tr>";
 976
 977                 foreach my $pr (@catList) {
 978                         if ($alternate) {
 979                                 print "<tr class=\"dark\">\n";
 980                         } else {
 981                                 print "<tr class=\"light\">\n";
 982                         }
 983                         $alternate ^= 1;
 984                         print "<td style=\"padding-left: 1em;\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 985                               "<td>$pr->{'descr'}</td>\n" .
 986                               "<td><i>" . chop_str(esc_html($pr->{'owner'}), 15) . "</i></td>\n";
 987                         my $colored_age;
 988                         if ($pr->{'commit'}{'age'} < 60*60*2) {
 989                                 $colored_age = "<span style =\"color: #009900;\"><b><i>$pr->{'commit'}{'age_string'}</i></b></span>";
 990                         } elsif ($pr->{'commit'}{'age'} < 60*60*24*2) {
 991                                 $colored_age = "<span style =\"color: #009900;\"><i>$pr->{'commit'}{'age_string'}</i></span>";
 992                         } else {
 993                                 $colored_age = "<i>$pr->{'commit'}{'age_string'}</i>";
 994                         }
 995                         print "<td>$colored_age</td>\n" .
 996                               "<td class=\"link\">" .
 997                               $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 998                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 999                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
1000                               " | " . $cgi->a({-href => "$snapshots_url/$pr->{'path'}-snapshot-HEAD.tar.bz2"}, "latest snapshot") .
1001                               "</td>\n" .
1002                               "</tr>\n";
1003                 }
1004         }
1005         print "</table>\n";
1006         git_footer_html();
1007 }
1008
1009 sub read_info_ref {
1010         my $type = shift || "";
1011         my %refs;
1012         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1013         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1014         open my $fd, "$projectroot/$project/info/refs" or return;
1015         while (my $line = <$fd>) {
1016                 chomp($line);
1017                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
1018                         if (defined $refs{$1}) {
1019                                 $refs{$1} .= " / $2";
1020                         } else {
1021                                 $refs{$1} = $2;
1022                         }
1023                 }
1024         }
1025         close $fd or return;
1026         return \%refs;
1027 }
1028
1029 sub git_read_refs {
1030         my $ref_dir = shift;
1031         my @reflist;
1032
1033         my @refs;
1034         opendir my $dh, "$projectroot/$project/$ref_dir";
1035         while (my $dir = readdir($dh)) {
1036                 if ($dir =~ m/^\./) {
1037                         next;
1038                 }
1039                 if (-d "$projectroot/$project/$ref_dir/$dir") {
1040                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
1041                         my @subdirs = grep !m/^\./, readdir $dh2;
1042                         closedir($dh2);
1043                         foreach my $subdir (@subdirs) {
1044                                 push @refs, "$dir/$subdir"
1045                         }
1046                         next;
1047                 }
1048                 push @refs, $dir;
1049         }
1050         closedir($dh);
1051         foreach my $ref_file (@refs) {
1052                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
1053                 my $type = git_get_type($ref_id) || next;
1054                 my %ref_item;
1055                 my %co;
1056                 $ref_item{'type'} = $type;
1057                 $ref_item{'id'} = $ref_id;
1058                 $ref_item{'epoch'} = 0;
1059                 $ref_item{'age'} = "unknown";
1060                 if ($type eq "tag") {
1061                         my %tag = git_read_tag($ref_id);
1062                         $ref_item{'comment'} = $tag{'comment'};
1063                         if ($tag{'type'} eq "commit") {
1064                                 %co = git_read_commit($tag{'object'});
1065                                 $ref_item{'epoch'} = $co{'committer_epoch'};
1066                                 $ref_item{'age'} = $co{'age_string'};
1067                         } elsif (defined($tag{'epoch'})) {
1068                                 my $age = time - $tag{'epoch'};
1069                                 $ref_item{'epoch'} = $tag{'epoch'};
1070                                 $ref_item{'age'} = age_string($age);
1071                         }
1072                         $ref_item{'reftype'} = $tag{'type'};
1073                         $ref_item{'name'} = $tag{'name'};
1074                         $ref_item{'refid'} = $tag{'object'};
1075                 } elsif ($type eq "commit"){
1076                         %co = git_read_commit($ref_id);
1077                         $ref_item{'reftype'} = "commit";
1078                         $ref_item{'name'} = $ref_file;
1079                         $ref_item{'title'} = $co{'title'};
1080                         $ref_item{'refid'} = $ref_id;
1081                         $ref_item{'epoch'} = $co{'committer_epoch'};
1082                         $ref_item{'age'} = $co{'age_string'};
1083                 }
1084
1085                 push @reflist, \%ref_item;
1086         }
1087         # sort tags by age
1088         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1089         return \@reflist;
1090 }
1091
1092 sub git_summary {
1093         my $descr = git_read_description($project) || "none";
1094         my $head = git_read_head($project);
1095         my %co = git_read_commit($head);
1096         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1097
1098         my $owner;
1099         if (-f $projects_list) {
1100                 open (my $fd , $projects_list);
1101                 while (my $line = <$fd>) {
1102                         chomp $line;
1103                         my ($pr, $ow) = split ' ', $line;
1104                         $pr = unescape($pr);
1105                         $ow = unescape($ow);
1106                         if ($pr eq $project) {
1107                                 $owner = $ow;
1108                                 last;
1109                         }
1110                 }
1111                 close $fd;
1112         }
1113         if (!defined $owner) {
1114                 $owner = get_file_owner("$projectroot/$project");
1115         }
1116
1117         my $refs = read_info_ref();
1118         git_header_html();
1119         print git_navbar($project, $head, "summary", "");
1120         print "<div class=\"title\">&nbsp;</div>\n";
1121         print "<table cellspacing=\"0\">\n" .
1122               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1123               "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n" .
1124               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1125               "<tr><td>url</td><td>$git_base_url/$project</td></tr>" .
1126               "</table>\n";
1127         open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
1128         my (@revlist) = map { chomp; $_ } <$fd>;
1129         close $fd;
1130         print "<div>\n" .
1131               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1132               "</div>\n";
1133         my $i = 16;
1134         print "<table cellspacing=\"0\">\n";
1135         my $alternate = 0;
1136         foreach my $commit (@revlist) {
1137                 my %co = git_read_commit($commit);
1138                 my %ad = date_str($co{'author_epoch'});
1139                 if ($alternate) {
1140                         print "<tr class=\"dark\">\n";
1141                 } else {
1142                         print "<tr class=\"light\">\n";
1143                 }
1144                 $alternate ^= 1;
1145                 if ($i-- > 0) {
1146                         my $ref = "";
1147                         if (defined $refs->{$commit}) {
1148                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1149                         }
1150                         print "<td><i>$co{'age_string'}</i></td>\n" .
1151                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1152                               "<td>";
1153                         if (length($co{'title_short'}) < length($co{'title'})) {
1154                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1155                                       "<b>" . committags_shortlog(esc_html($co{'title_short'}), ("$my_uri?" . esc_param("p=$project;a=commit;h=$commit"))) . "$ref</b>");
1156                         } else {
1157                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1158                                       "<b>" . committags_shortlog(esc_html($co{'title'}), ("$my_uri?" . esc_param("p=$project;a=commit;h=$commit"))) . "$ref</b>");
1159                         }
1160                         print "</td>\n" .
1161                               "<td class=\"link\">" .
1162                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1163                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1164                               " | " . $cgi->a({-href => "$snapshots_url/$project-snapshot-$commit.tar.bz2"}, "snapshot") .
1165                               "</td>\n" .
1166                               "</tr>";
1167                 } else {
1168                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1169                         "</tr>";
1170                         last;
1171                 }
1172         }
1173         print "</table\n>";
1174
1175         my $taglist = git_read_refs("refs/tags");
1176         if (defined @$taglist) {
1177                 print "<div>\n" .
1178                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1179                       "</div>\n";
1180                 my $i = 16;
1181                 print "<table cellspacing=\"0\">\n";
1182                 my $alternate = 0;
1183                 foreach my $entry (@$taglist) {
1184                         my %tag = %$entry;
1185                         my $comment_lines = $tag{'comment'};
1186                         my $comment = shift @$comment_lines;
1187                         if (defined($comment)) {
1188                                 $comment = chop_str($comment, 30, 5);
1189                         }
1190                         if ($alternate) {
1191                                 print "<tr class=\"dark\">\n";
1192                         } else {
1193                                 print "<tr class=\"light\">\n";
1194                         }
1195                         $alternate ^= 1;
1196                         if ($i-- > 0) {
1197                                 print "<td><i>$tag{'age'}</i></td>\n" .
1198                                       "<td>" .
1199                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1200                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1201                                       "</td>\n" .
1202                                       "<td>";
1203                                 if (defined($comment)) {
1204                                       print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1205                                 }
1206                                 print "</td>\n" .
1207                                       "<td class=\"link\">";
1208                                 if ($tag{'type'} eq "tag") {
1209                                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1210                                 }
1211                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1212                                 if ($tag{'reftype'} eq "commit") {
1213                                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1214                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log") .
1215                                             " | " . $cgi->a({-href => "$snapshots_url/$project-snapshot-$tag{'refid'}.tar.bz2"}, "snapshot");
1216                                 }
1217                                 print "</td>\n" .
1218                                       "</tr>";
1219                         } else {
1220                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1221                                 "</tr>";
1222                                 last;
1223                         }
1224                 }
1225                 print "</table\n>";
1226         }
1227
1228         my $headlist = git_read_refs("refs/heads");
1229         if (defined @$headlist) {
1230                 print "<div>\n" .
1231                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1232                       "</div>\n";
1233                 my $i = 16;
1234                 print "<table cellspacing=\"0\">\n";
1235                 my $alternate = 0;
1236                 foreach my $entry (@$headlist) {
1237                         my %tag = %$entry;
1238                         if ($alternate) {
1239                                 print "<tr class=\"dark\">\n";
1240                         } else {
1241                                 print "<tr class=\"light\">\n";
1242                         }
1243                         $alternate ^= 1;
1244                         if ($i-- > 0) {
1245                                 print "<td><i>$tag{'age'}</i></td>\n" .
1246                                       "<td>" .
1247                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1248                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1249                                       "</td>\n" .
1250                                       "<td class=\"link\">" .
1251                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1252                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1253                                       "</td>\n" .
1254                                       "</tr>";
1255                         } else {
1256                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1257                                 "</tr>";
1258                                 last;
1259                         }
1260                 }
1261                 print "</table\n>";
1262         }
1263         git_footer_html();
1264 }
1265
1266 sub git_tag {
1267         my $head = git_read_head($project);
1268         git_header_html();
1269         print git_navbar($project, $head, "tag", "");
1270         my %tag = git_read_tag($hash);
1271         print "<div>\n" .
1272               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1273               "</div>\n";
1274         print "<div class=\"title_text\">\n" .
1275               "<table cellspacing=\"0\">\n" .
1276               "<tr>\n" .
1277               "<td>object</td>\n" .
1278               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1279               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1280               "</tr>\n";
1281         if (defined($tag{'author'})) {
1282                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1283                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1284                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1285         }
1286         print "</table>\n\n" .
1287               "</div>\n";
1288         print "<div class=\"page_body\">";
1289         my $comment = $tag{'comment'};
1290         foreach my $line (@$comment) {
1291                 print esc_html($line) . "<br/>\n";
1292         }
1293         print "</div>\n";
1294         git_footer_html();
1295 }
1296
1297 sub git_tags {
1298         my $head = git_read_head($project);
1299         git_header_html();
1300         print git_navbar($project, $head, "tags", "");
1301         my $taglist = git_read_refs("refs/tags");
1302         print "<div>\n" .
1303               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1304               "</div>\n";
1305         print "<table cellspacing=\"0\">\n";
1306         my $alternate = 0;
1307         if (defined @$taglist) {
1308                 foreach my $entry (@$taglist) {
1309                         my %tag = %$entry;
1310                         my $comment_lines = $tag{'comment'};
1311                         my $comment = shift @$comment_lines;
1312                         if (defined($comment)) {
1313                                 $comment = chop_str($comment, 30, 5);
1314                         }
1315                         if ($alternate) {
1316                                 print "<tr class=\"dark\">\n";
1317                         } else {
1318                                 print "<tr class=\"light\">\n";
1319                         }
1320                         $alternate ^= 1;
1321                         print "<td><i>$tag{'age'}</i></td>\n" .
1322                               "<td>" .
1323                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1324                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1325                               "</td>\n" .
1326                               "<td>";
1327                         if (defined($comment)) {
1328                               print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1329                         }
1330                         print "</td>\n" .
1331                               "<td class=\"link\">";
1332                         if ($tag{'type'} eq "tag") {
1333                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1334                         }
1335                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1336                         if ($tag{'reftype'} eq "commit") {
1337                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1338                                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log") .
1339                                     " | " . $cgi->a({-href => "$snapshots_url/$project-snapshot-$tag{'refid'}.tar.bz2"}, "snapshot");
1340                         }
1341                         print "</td>\n" .
1342                               "</tr>";
1343                 }
1344         }
1345         print "</table\n>";
1346         git_footer_html();
1347 }
1348
1349 sub git_heads {
1350         my $head = git_read_head($project);
1351         git_header_html();
1352         print git_navbar($project, $head, "heads", "");
1353         my $taglist = git_read_refs("refs/heads");
1354         print "<div>\n" .
1355               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1356               "</div>\n";
1357         print "<table cellspacing=\"0\">\n";
1358         my $alternate = 0;
1359         if (defined @$taglist) {
1360                 foreach my $entry (@$taglist) {
1361                         my %tag = %$entry;
1362                         if ($alternate) {
1363                                 print "<tr class=\"dark\">\n";
1364                         } else {
1365                                 print "<tr class=\"light\">\n";
1366                         }
1367                         $alternate ^= 1;
1368                         print "<td><i>$tag{'age'}</i></td>\n" .
1369                               "<td>" .
1370                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1371                               "</td>\n" .
1372                               "<td class=\"link\">" .
1373                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1374                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1375                               "</td>\n" .
1376                               "</tr>";
1377                 }
1378         }
1379         print "</table\n>";
1380         git_footer_html();
1381 }
1382
1383 sub git_get_hash_by_path {
1384         my $base = shift;
1385         my $path = shift || return undef;
1386
1387         my $tree = $base;
1388         my @parts = split '/', $path;
1389         while (my $part = shift @parts) {
1390                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
1391                 my (@entries) = map { chomp; $_ } <$fd>;
1392                 close $fd or return undef;
1393                 foreach my $line (@entries) {
1394                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1395                         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1396                         my $t_mode = $1;
1397                         my $t_type = $2;
1398                         my $t_hash = $3;
1399                         my $t_name = validate_input(unquote($4));
1400                         if ($t_name eq $part) {
1401                                 if (!(@parts)) {
1402                                         return $t_hash;
1403                                 }
1404                                 if ($t_type eq "tree") {
1405                                         $tree = $t_hash;
1406                                 }
1407                                 last;
1408                         }
1409                 }
1410         }
1411 }
1412
1413 sub git_blob {
1414         if (!defined $hash && defined $file_name) {
1415                 my $base = $hash_base || git_read_head($project);
1416                 $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
1417         }
1418         my $syntax = "txt";
1419         my $ext;
1420         foreach my $key (keys %highlight) {
1421                 if ($file_name =~ /$key/) {
1422                         $syntax = $highlight{$key};
1423                         $ext = $key;
1424                         last;
1425                 }
1426         }
1427
1428         my %tags;
1429         my $suffix = $ext;
1430         $suffix =~ s/\$//;
1431         my ($dpath, $prefix) = $file_name =~ m/(.*\/)?(.*)$ext/;
1432         my ($tmpfh, $tmpname) = tempfile($prefix."XXXXXX", SUFFIX => $suffix, UNLINK => 1, DIR => $git_temp) or die_error(undef, "Could not get tempfile");
1433         close $tmpfh;
1434
1435         my $gcExit = system "$gitbin/git-cat-file blob $hash > $tmpname";
1436         if ($gcExit != 0) {
1437                 die_error(undef, "Cannot read blob: git-cat-file returned $gcExit");
1438         }
1439
1440         if ($etagsbin ne "" and $ext =~ /^\./) {
1441                 open my $tmpfd, "-|", "echo '$tmpname' | $etagsbin --filter=yes" or die_error(undef, "Could not read tags for $file_name");
1442                 my $count = 0;
1443                 while (my $line = <$tmpfd>) {
1444                         # discard first 2 lines
1445                         if ($count < 2) {
1446                                 $count++;
1447                                 next;
1448                         }
1449                         my ($tag, $location) = $line =~ m/\x7f(.*)\x01(\d+),/;
1450                         if (defined $tags{$location}) {
1451                                 push @{$tags{$location}}, $tag;
1452                         }
1453                         else {
1454                                 $tags{$location} = [$tag];
1455                         }
1456                 }
1457                 close $tmpfd;
1458         }
1459
1460         open my $fd, "-|", "highlight -t 4 -l -a -f -I --syntax $syntax $tmpname" or die_error(undef, "Open failed.");
1461         git_header_html();
1462         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1463                 my $plainLink;
1464                 if (defined $file_name) {
1465                         $plainLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1466                         " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
1467                 } else {
1468                         $plainLink = $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
1469                 }
1470                 print git_navbar($project, $hash_base, "blob", $plainLink);
1471                 print "<div>" .
1472                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1473                       "</div>\n";
1474         } else {
1475                 print "<div class=\"page_nav\">\n" .
1476                       "<br/><br/></div>\n" .
1477                       "<div class=\"title\">$hash</div>\n";
1478         }
1479         if (defined $file_name) {
1480                 print "<div class=\"page_path\"><b>" . esc_html($file_name) . "</b></div>\n";
1481         }
1482         print "<div class=\"pre\">\n";
1483         my $nr = 0;
1484         while (my $line = <$fd>) {
1485                 $nr++;
1486                 chomp $line;
1487                 if ($syntax =~ /txt/) {
1488                         $line = "<a name=\"l_$nr\" href=\"#l_$nr\" class=\"linenr\">$nr</a> $line";
1489                 }
1490                 else {
1491                         $line =~ s/<a name=\"(.+?)\">/<a name=\"$1\" href=\"#$1\" class=\"linenr\">/;
1492                 }
1493
1494                 if (defined $tags{$nr}) {
1495                         my @tagList = @{$tags{$nr}};
1496                         foreach my $tag (@tagList) {
1497                                 $line =~ s/$tag/<a name=\"$tag\" href=\"#$tag\">$tag<\/a>/;
1498                         }
1499                 }
1500
1501                 printf "%s\n", $line;
1502         }
1503         close $fd or print "Reading blob failed.\n";
1504         print "</div>";
1505         git_footer_html();
1506 }
1507
1508 sub git_blob_plain {
1509         my $save_as = "$hash.txt";
1510         if (defined $file_name) {
1511                 $save_as = $file_name;
1512         }
1513         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"$save_as\"");
1514         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or return;
1515         undef $/;
1516         print <$fd>;
1517         $/ = "\n";
1518         close $fd;
1519 }
1520
1521 sub git_tree {
1522         if (!defined $hash) {
1523                 $hash = git_read_head($project);
1524                 if (defined $file_name) {
1525                         my $base = $hash_base || $hash;
1526                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1527                 }
1528                 if (!defined $hash_base) {
1529                         $hash_base = $hash;
1530                 }
1531         }
1532         $/ = "\0";
1533         open my $fd, "-|", "$gitbin/git-ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
1534         chomp (my (@entries) = <$fd>);
1535         close $fd or die_error(undef, "Reading tree failed.");
1536         $/ = "\n";
1537
1538         my $refs = read_info_ref();
1539         my $ref = "";
1540         if (defined $refs->{$hash_base}) {
1541                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1542         }
1543         git_header_html();
1544         my $base_key = "";
1545         my $base = "";
1546         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1547                 $base_key = ";hb=$hash_base";
1548                 print git_navbar($project, $hash_base, "tree", "");
1549                 print "<div>\n" .
1550                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1551                       "</div>\n";
1552         } else {
1553                 print "<div class=\"page_nav\">\n";
1554                 print "<br/><br/></div>\n";
1555                 print "<div class=\"title\">$hash</div>\n";
1556         }
1557         if (defined $file_name) {
1558                 $base = esc_html("$file_name/");
1559                 print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
1560         } else {
1561                 print "<div class=\"page_path\"><b>/</b></div>\n";
1562         }
1563         print "<div class=\"page_body\">\n";
1564         print "<table cellspacing=\"0\">\n";
1565         my $alternate = 0;
1566         foreach my $line (@entries) {
1567                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1568                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1569                 my $t_mode = $1;
1570                 my $t_type = $2;
1571                 my $t_hash = $3;
1572                 my $t_name = validate_input($4);
1573                 if ($alternate) {
1574                         print "<tr class=\"dark\">\n";
1575                 } else {
1576                         print "<tr class=\"light\">\n";
1577                 }
1578                 $alternate ^= 1;
1579                 print "<td style=\"font-family:monospace\">" . mode_str($t_mode) . "</td>\n";
1580                 if ($t_type eq "blob") {
1581                         print "<td class=\"list\">" .
1582                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1583                               "</td>\n" .
1584                               "<td class=\"link\">" .
1585                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1586                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash_base;f=$base$t_name")}, "history") .
1587                               "</td>\n";
1588                 } elsif ($t_type eq "tree") {
1589                         print "<td class=\"list\">" .
1590                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1591                               "</td>\n" .
1592                               "<td class=\"link\">" .
1593                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1594                               "</td>\n";
1595                 }
1596                 print "</tr>\n";
1597         }
1598         print "</table>\n" .
1599               "</div>";
1600         git_footer_html();
1601 }
1602
1603 sub git_rss {
1604         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1605         open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
1606         my (@revlist) = map { chomp; $_ } <$fd>;
1607         close $fd or die_error(undef, "Reading rev-list failed.");
1608         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1609         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1610               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1611         print "<channel>\n";
1612         print "<title>$project</title>\n".
1613               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1614               "<description>$project log</description>\n".
1615               "<language>en</language>\n";
1616
1617         for (my $i = 0; $i <= $#revlist; $i++) {
1618                 my $commit = $revlist[$i];
1619                 my %co = git_read_commit($commit);
1620                 # we read 150, we always show 30 and the ones more recent than 48 hours
1621                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1622                         last;
1623                 }
1624                 my %cd = date_str($co{'committer_epoch'});
1625                 open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
1626                 my @difftree = map { chomp; $_ } <$fd>;
1627                 close $fd or next;
1628                 print "<item>\n" .
1629                       "<title>" .
1630                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1631                       "</title>\n" .
1632                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1633                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1634                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1635                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1636                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1637                       "<content:encoded>" .
1638                       "<![CDATA[\n";
1639                 my $comment = $co{'comment'};
1640                 foreach my $line (@$comment) {
1641                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1642                         print "$line<br/>\n";
1643                 }
1644                 print "<br/>\n";
1645                 foreach my $line (@difftree) {
1646                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1647                                 next;
1648                         }
1649                         my $file = validate_input(unquote($7));
1650                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1651                         print "$file<br/>\n";
1652                 }
1653                 print "]]>\n" .
1654                       "</content:encoded>\n" .
1655                       "</item>\n";
1656         }
1657         print "</channel></rss>";
1658 }
1659
1660 sub git_opml {
1661         my @list = git_read_projects();
1662
1663         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1664         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1665               "<opml version=\"1.0\">\n".
1666               "<head>".
1667               "  <title>Git OPML Export</title>\n".
1668               "</head>\n".
1669               "<body>\n".
1670               "<outline text=\"git RSS feeds\">\n";
1671
1672         foreach my $pr (@list) {
1673                 my %proj = %$pr;
1674                 my $head = git_read_head($proj{'path'});
1675                 if (!defined $head) {
1676                         next;
1677                 }
1678                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1679                 my %co = git_read_commit($head);
1680                 if (!%co) {
1681                         next;
1682                 }
1683
1684                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1685                 my $rss =  "$my_url?p=$proj{'path'};a=rss";
1686                 my $html =  "$my_url?p=$proj{'path'};a=summary";
1687                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1688         }
1689         print "</outline>\n".
1690               "</body>\n".
1691               "</opml>\n";
1692 }
1693
1694 sub git_log {
1695         my $head = git_read_head($project);
1696         if (!defined $hash) {
1697                 $hash = $head;
1698         }
1699         if (!defined $page) {
1700                 $page = 0;
1701         }
1702         my $refs = read_info_ref();
1703         git_header_html();
1704         my $navExtra = "";
1705         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1706         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
1707         my (@revlist) = map { chomp; $_ } <$fd>;
1708         close $fd;
1709
1710         if ($hash ne $head || $page) {
1711                 $navExtra .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1712         } else {
1713                 $navExtra .= "HEAD";
1714         }
1715         if ($page > 0) {
1716                 $navExtra .= " &sdot; " .
1717                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1718         } else {
1719                 $navExtra .= " &sdot; prev";
1720         }
1721         if ($#revlist >= (100 * ($page+1)-1)) {
1722                 $navExtra .= " &sdot; " .
1723                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1724         } else {
1725                 $navExtra .= " &sdot; next";
1726         }
1727         print git_navbar($project, $hash, "log", $navExtra);
1728         if (!@revlist) {
1729                 print "<div>\n" .
1730                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1731                       "</div>\n";
1732                 my %co = git_read_commit($hash);
1733                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1734         }
1735         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1736                 my $commit = $revlist[$i];
1737                 my $ref = "";
1738                 if (defined $refs->{$commit}) {
1739                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1740                 }
1741                 my %co = git_read_commit($commit);
1742                 next if !%co;
1743                 my %ad = date_str($co{'author_epoch'});
1744                 print "<div>\n" .
1745                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1746                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1747                 print "</div>\n";
1748                 print "<div class=\"title_text\">\n" .
1749                       "<div class=\"log_link\">\n" .
1750                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1751                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1752                       " | " . $cgi->a({-href => "$snapshots_url/$project-snapshot-$commit.tar.bz2"}, "snapshot") .
1753                       "<br/>\n" .
1754                       "</div>\n" .
1755                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1756                       "</div>\n" .
1757                       "<div class=\"log_body\">\n";
1758                 my $comment = $co{'comment'};
1759                 my $empty = 0;
1760                 foreach my $line (@$comment) {
1761                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1762                                 next;
1763                         }
1764                         if ($line eq "") {
1765                                 if ($empty) {
1766                                         next;
1767                                 }
1768                                 $empty = 1;
1769                         } else {
1770                                 $empty = 0;
1771                         }
1772                         print format_log_line_html($line) . "<br/>\n";
1773                 }
1774                 if (!$empty) {
1775                         print "<br/>\n";
1776                 }
1777                 print "</div>\n";
1778         }
1779         git_footer_html();
1780 }
1781
1782 sub git_commit {
1783         my %co = git_read_commit($hash);
1784         if (!%co) {
1785                 die_error(undef, "Unknown commit object.");
1786         }
1787         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1788         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1789
1790         my @difftree;
1791         my $root = "";
1792         my $parent = $co{'parent'};
1793         if (!defined $parent) {
1794                 $root = " --root";
1795                 $parent = "";
1796         }
1797         open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
1798         @difftree = map { chomp; $_ } <$fd>;
1799         close $fd or die_error(undef, "Reading diff-tree failed.");
1800
1801         # non-textual hash id's can be cached
1802         my $expires;
1803         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1804                 $expires = "+1d";
1805         }
1806         my $refs = read_info_ref();
1807         my $ref = "";
1808         if (defined $refs->{$co{'id'}}) {
1809                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
1810         }
1811         git_header_html(undef, $expires);
1812         # git_navbar omitted here - commitdiff link a bit weird o_O
1813         print "<div class=\"page_nav\">\n" .
1814               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1815               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1816               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
1817               " | commit";
1818         if (defined $co{'parent'}) {
1819                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
1820         }
1821         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
1822               "<br/><br/></div>\n";
1823         if (defined $co{'parent'}) {
1824                 print "<div>\n" .
1825                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1826                       "</div>\n";
1827         } else {
1828                 print "<div>\n" .
1829                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1830                       "</div>\n";
1831         }
1832         print "<div class=\"title_text\">\n" .
1833               "<table cellspacing=\"0\">\n";
1834         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
1835               "<tr>" .
1836               "<td></td><td> $ad{'rfc2822'}";
1837         if ($ad{'hour_local'} < 6) {
1838                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1839         } else {
1840                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1841         }
1842         print "</td>" .
1843               "</tr>\n";
1844         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
1845         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
1846         print "<tr><td>commit</td><td style=\"font-family:monospace\">$co{'id'}</td></tr>\n";
1847         print "<tr>" .
1848               "<td>tree</td>" .
1849               "<td style=\"font-family:monospace\">" .
1850               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
1851               "</td>" .
1852               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
1853               "</td>" .
1854               "</tr>\n";
1855         my $parents  = $co{'parents'};
1856         foreach my $par (@$parents) {
1857                 print "<tr>" .
1858                       "<td>parent</td>" .
1859                       "<td style=\"font-family:monospace\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
1860                       "<td class=\"link\">" .
1861                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
1862                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
1863                       "</td>" .
1864                       "</tr>\n";
1865         }
1866         print "<tr><td>snapshot</td>".
1867               "<td><a href=\"$snapshots_url/$project-snapshot-$hash.tar.bz2\">$hash</a></td></tr>";
1868         print "</table>".
1869               "</div>\n";
1870         print "<div class=\"page_body\">\n";
1871         my $comment = $co{'comment'};
1872         my $empty = 0;
1873         my $signed = 0;
1874         foreach my $line (@$comment) {
1875                 # print only one empty line
1876                 if ($line eq "") {
1877                         if ($empty || $signed) {
1878                                 next;
1879                         }
1880                         $empty = 1;
1881                 } else {
1882                         $empty = 0;
1883                 }
1884                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1885                         $signed = 1;
1886                         print "<span style=\"color: #888888\">" . esc_html($line) . "</span><br/>\n";
1887                 } else {
1888                         $signed = 0;
1889                         print format_log_line_html($line) . "<br/>\n";
1890                 }
1891         }
1892         print "</div>\n";
1893         print "<div class=\"list_head\">\n";
1894         if ($#difftree > 10) {
1895                 print(($#difftree + 1) . " files changed:\n");
1896         }
1897         print "</div>\n";
1898         print "<table cellspacing=\"0\">\n";
1899         my $alternate = 0;
1900         foreach my $line (@difftree) {
1901                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1902                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1903                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1904                         next;
1905                 }
1906                 my $from_mode = $1;
1907                 my $to_mode = $2;
1908                 my $from_id = $3;
1909                 my $to_id = $4;
1910                 my $status = $5;
1911                 my $similarity = $6;
1912                 my $file = validate_input(unquote($7));
1913                 if ($alternate) {
1914                         print "<tr class=\"dark\">\n";
1915                 } else {
1916                         print "<tr class=\"light\">\n";
1917                 }
1918                 $alternate ^= 1;
1919                 if ($status eq "A") {
1920                         my $mode_chng = "";
1921                         if (S_ISREG(oct $to_mode)) {
1922                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1923                         }
1924                         print "<td>" .
1925                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1926                               "<td><span style=\"color: #008000;\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1927                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
1928                 } elsif ($status eq "D") {
1929                         print "<td>" .
1930                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1931                               "<td><span style=\"color: #c00000;\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1932                               "<td class=\"link\">" .
1933                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
1934                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") .
1935                               "</td>\n"
1936                 } elsif ($status eq "M" || $status eq "T") {
1937                         my $mode_chnge = "";
1938                         if ($from_mode != $to_mode) {
1939                                 $mode_chnge = " <span style=\"color: #777777;\">[changed";
1940                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1941                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1942                                 }
1943                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1944                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1945                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1946                                         } elsif (S_ISREG($to_mode)) {
1947                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1948                                         }
1949                                 }
1950                                 $mode_chnge .= "]</span>\n";
1951                         }
1952                         print "<td>";
1953                         if ($to_id ne $from_id) {
1954                                 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));
1955                         } else {
1956                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
1957                         }
1958                         print "</td>\n" .
1959                               "<td>$mode_chnge</td>\n" .
1960                               "<td class=\"link\">";
1961                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
1962                         if ($to_id ne $from_id) {
1963                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
1964                         }
1965                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") . "\n";
1966                         print "</td>\n";
1967                 } elsif ($status eq "R") {
1968                         my ($from_file, $to_file) = split "\t", $file;
1969                         my $mode_chng = "";
1970                         if ($from_mode != $to_mode) {
1971                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1972                         }
1973                         print "<td>" .
1974                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
1975                               "<td><span style=\"color: #777777;\">[moved from " .
1976                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
1977                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1978                               "<td class=\"link\">" .
1979                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
1980                         if ($to_id ne $from_id) {
1981                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
1982                         }
1983                         print "</td>\n";
1984                 }
1985                 print "</tr>\n";
1986         }
1987         print "</table>\n";
1988         git_footer_html();
1989 }
1990
1991 sub git_blobdiff {
1992         mkdir($git_temp, 0700);
1993         git_header_html();
1994         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1995                 print git_navbar($project, $hash_base, "blobdiff", $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain"));
1996                 print "<div>\n" .
1997                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1998                       "</div>\n";
1999         } else {
2000                 print "<div class=\"page_nav\">\n" .
2001                       "<br/><br/></div>\n" .
2002                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2003         }
2004         if (defined $file_name) {
2005                 print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
2006         }
2007         print "<div class=\"page_body\">\n" .
2008               "<div class=\"diff_info\">blob:" .
2009               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2010               " -> blob:" .
2011               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2012               "</div>\n";
2013         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2014         print "</div>";
2015         git_footer_html();
2016 }
2017
2018 sub git_blobdiff_plain {
2019         mkdir($git_temp, 0700);
2020         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2021         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2022 }
2023
2024 sub git_commitdiff {
2025         mkdir($git_temp, 0700);
2026         my %co = git_read_commit($hash);
2027         if (!%co) {
2028                 die_error(undef, "Unknown commit object.");
2029         }
2030         if (!defined $hash_parent) {
2031                 $hash_parent = $co{'parent'};
2032         }
2033         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2034         my (@difftree) = map { chomp; $_ } <$fd>;
2035         close $fd or die_error(undef, "Reading diff-tree failed.");
2036
2037         # non-textual hash id's can be cached
2038         my $expires;
2039         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2040                 $expires = "+1d";
2041         }
2042         my $refs = read_info_ref();
2043         my $ref = "";
2044         if (defined $refs->{$co{'id'}}) {
2045                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2046         }
2047         git_header_html(undef, $expires);
2048         print git_navbar($project, $hash, "commitdiff", $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain"));
2049         print "<div class=\"title\">\n" .
2050               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, committags_real(esc_html($co{'title'}), "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), "title_cdiff") . $ref) . "\n" .
2051               "</div>\n";
2052         print "<div class=\"page_body\">\n";
2053         my $comment = $co{'comment'};
2054         my $empty = 0;
2055         my $signed = 0;
2056         my @log = @$comment;
2057         # remove first and empty lines after that
2058         shift @log;
2059         while (defined $log[0] && $log[0] eq "") {
2060                 shift @log;
2061         }
2062         foreach my $line (@log) {
2063                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2064                         next;
2065                 }
2066                 if ($line eq "") {
2067                         if ($empty) {
2068                                 next;
2069                         }
2070                         $empty = 1;
2071                 } else {
2072                         $empty = 0;
2073                 }
2074                 print format_log_line_html($line) . "<br/>\n";
2075         }
2076         print "<br/>\n";
2077         foreach my $line (@difftree) {
2078                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2079                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2080                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2081                 my $from_mode = $1;
2082                 my $to_mode = $2;
2083                 my $from_id = $3;
2084                 my $to_id = $4;
2085                 my $status = $5;
2086                 my $file = validate_input(unquote($6));
2087                 if ($status eq "A") {
2088                         print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
2089                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2090                               "</div>\n";
2091                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2092                 } elsif ($status eq "D") {
2093                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2094                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2095                               "</div>\n";
2096                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2097                 } elsif ($status eq "M") {
2098                         if ($from_id ne $to_id) {
2099                                 print "<div class=\"diff_info\">" .
2100                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2101                                       " -> " .
2102                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2103                                 print "</div>\n";
2104                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2105                         }
2106                 }
2107         }
2108         print "<br/>\n" .
2109               "</div>";
2110         git_footer_html();
2111 }
2112
2113 sub git_commitdiff_plain {
2114         mkdir($git_temp, 0700);
2115         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2116         my (@difftree) = map { chomp; $_ } <$fd>;
2117         close $fd or die_error(undef, "Reading diff-tree failed.");
2118
2119         # try to figure out the next tag after this commit
2120         my $tagname;
2121         my $refs = read_info_ref("tags");
2122         open $fd, "-|", "$gitbin/git-rev-list HEAD";
2123         chomp (my (@commits) = <$fd>);
2124         close $fd;
2125         foreach my $commit (@commits) {
2126                 if (defined $refs->{$commit}) {
2127                         $tagname = $refs->{$commit}
2128                 }
2129                 if ($commit eq $hash) {
2130                         last;
2131                 }
2132         }
2133
2134         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2135         my %co = git_read_commit($hash);
2136         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2137         my $comment = $co{'comment'};
2138         print "From: $co{'author'}\n" .
2139               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2140               "Subject: $co{'title'}\n";
2141         if (defined $tagname) {
2142               print "X-Git-Tag: $tagname\n";
2143         }
2144         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2145               "\n";
2146
2147         foreach my $line (@$comment) {;
2148                 print "$line\n";
2149         }
2150         print "---\n\n";
2151
2152         foreach my $line (@difftree) {
2153                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2154                 my $from_id = $3;
2155                 my $to_id = $4;
2156                 my $status = $5;
2157                 my $file = $6;
2158                 if ($status eq "A") {
2159                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2160                 } elsif ($status eq "D") {
2161                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2162                 } elsif ($status eq "M") {
2163                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2164                 }
2165         }
2166 }
2167
2168 sub git_history {
2169         if (!defined $hash) {
2170                 $hash = git_read_head($project);
2171         }
2172         my %co = git_read_commit($hash);
2173         if (!%co) {
2174                 die_error(undef, "Unknown commit object.");
2175         }
2176         my $refs = read_info_ref();
2177         git_header_html();
2178         print git_navbar($project, $hash, "history", "");
2179         print "<div>\n" .
2180               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, committags(esc_html($co{'title'}))) . "\n" .
2181               "</div>\n";
2182         print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
2183
2184         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin \'$file_name\'";
2185         my $commit;
2186         print "<table cellspacing=\"0\">\n";
2187         my $alternate = 0;
2188         while (my $line = <$fd>) {
2189                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2190                         $commit = $1;
2191                         next;
2192                 }
2193                 if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
2194                         my %co = git_read_commit($commit);
2195                         if (!%co) {
2196                                 next;
2197                         }
2198                         my $ref = "";
2199                         if (defined $refs->{$commit}) {
2200                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2201                         }
2202                         if ($alternate) {
2203                                 print "<tr class=\"dark\">\n";
2204                         } else {
2205                                 print "<tr class=\"light\">\n";
2206                         }
2207                         $alternate ^= 1;
2208                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2209                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2210                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2211                               committags(esc_html(chop_str($co{'title'}, 50))) . "$ref</b>") . "</td>\n" .
2212                               "<td class=\"link\">" .
2213                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2214                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2215                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2216                         my $blob = git_get_hash_by_path($hash, $file_name);
2217                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2218                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2219                                 print " | " .
2220                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2221                                 "diff to current");
2222                         }
2223                         print "</td>\n" .
2224                               "</tr>\n";
2225                         undef $commit;
2226                 }
2227         }
2228         print "</table>\n";
2229         close $fd;
2230         git_footer_html();
2231 }
2232
2233 sub git_search {
2234         if (!defined $searchtext) {
2235                 die_error("", "Text field empty.");
2236         }
2237         if (!defined $hash) {
2238                 $hash = git_read_head($project);
2239         }
2240         my %co = git_read_commit($hash);
2241         if (!%co) {
2242                 die_error(undef, "Unknown commit object.");
2243         }
2244         # pickaxe may take all resources of your box and run for several minutes
2245         # with every query - so decide by yourself how public you make this feature :)
2246         my $commit_search = 1;
2247         my $author_search = 0;
2248         my $committer_search = 0;
2249         my $pickaxe_search = 0;
2250         if ($searchtext =~ s/^author\\://i) {
2251                 $author_search = 1;
2252         } elsif ($searchtext =~ s/^committer\\://i) {
2253                 $committer_search = 1;
2254         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2255                 $commit_search = 0;
2256                 $pickaxe_search = 1;
2257         }
2258         git_header_html();
2259         print git_navbar($project, $hash, "search", "");
2260
2261         print "<div>\n" .
2262               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2263               "</div>\n";
2264         print "<table cellspacing=\"0\">\n";
2265         my $alternate = 0;
2266         if ($commit_search) {
2267                 $/ = "\0";
2268                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
2269                 while (my $commit_text = <$fd>) {
2270                         if (!grep m/$searchtext/i, $commit_text) {
2271                                 next;
2272                         }
2273                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2274                                 next;
2275                         }
2276                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2277                                 next;
2278                         }
2279                         my @commit_lines = split "\n", $commit_text;
2280                         my %co = git_read_commit(undef, \@commit_lines);
2281                         if (!%co) {
2282                                 next;
2283                         }
2284                         if ($alternate) {
2285                                 print "<tr class=\"dark\">\n";
2286                         } else {
2287                                 print "<tr class=\"light\">\n";
2288                         }
2289                         $alternate ^= 1;
2290                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2291                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2292                               "<td>" .
2293                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2294                         my $comment = $co{'comment'};
2295                         foreach my $line (@$comment) {
2296                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2297                                         my $lead = esc_html($1) || "";
2298                                         $lead = chop_str($lead, 30, 10);
2299                                         my $match = esc_html($2) || "";
2300                                         my $trail = esc_html($3) || "";
2301                                         $trail = chop_str($trail, 30, 10);
2302                                         my $text = "$lead<span style=\"color:#e00000\">$match</span>$trail";
2303                                         print chop_str($text, 80, 5) . "<br/>\n";
2304                                 }
2305                         }
2306                         print "</td>\n" .
2307                               "<td class=\"link\">" .
2308                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2309                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2310                         print "</td>\n" .
2311                               "</tr>\n";
2312                 }
2313                 close $fd;
2314         }
2315
2316         if ($pickaxe_search) {
2317                 $/ = "\n";
2318                 open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S\'$searchtext\'";
2319                 undef %co;
2320                 my @files;
2321                 while (my $line = <$fd>) {
2322                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2323                                 my %set;
2324                                 $set{'file'} = $6;
2325                                 $set{'from_id'} = $3;
2326                                 $set{'to_id'} = $4;
2327                                 $set{'id'} = $set{'to_id'};
2328                                 if ($set{'id'} =~ m/0{40}/) {
2329                                         $set{'id'} = $set{'from_id'};
2330                                 }
2331                                 if ($set{'id'} =~ m/0{40}/) {
2332                                         next;
2333                                 }
2334                                 push @files, \%set;
2335                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2336                                 if (%co) {
2337                                         if ($alternate) {
2338                                                 print "<tr class=\"dark\">\n";
2339                                         } else {
2340                                                 print "<tr class=\"light\">\n";
2341                                         }
2342                                         $alternate ^= 1;
2343                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2344                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2345                                               "<td>" .
2346                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2347                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2348                                         while (my $setref = shift @files) {
2349                                                 my %set = %$setref;
2350                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2351                                                       "<span style=\"color:#e00000\">" . esc_html($set{'file'}) . "</span>") .
2352                                                       "<br/>\n";
2353                                         }
2354                                         print "</td>\n" .
2355                                               "<td class=\"link\">" .
2356                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2357                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2358                                         print "</td>\n" .
2359                                               "</tr>\n";
2360                                 }
2361                                 %co = git_read_commit($1);
2362                         }
2363                 }
2364                 close $fd;
2365         }
2366         print "</table>\n";
2367         git_footer_html();
2368 }
2369
2370 sub git_shortlog {
2371         my $head = git_read_head($project);
2372         if (!defined $hash) {
2373                 $hash = $head;
2374         }
2375         if (!defined $page) {
2376                 $page = 0;
2377         }
2378         my $refs = read_info_ref();
2379         git_header_html();
2380
2381         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2382         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
2383         my (@revlist) = map { chomp; $_ } <$fd>;
2384         close $fd;
2385
2386         my $navExtra = "";
2387         if ($hash ne $head || $page) {
2388                 $navExtra .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2389         } else {
2390                 $navExtra .= "HEAD";
2391         }
2392         if ($page > 0) {
2393                 $navExtra .= " &sdot; " .
2394                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2395         } else {
2396                 $navExtra .= " &sdot; prev";
2397         }
2398         if ($#revlist >= (100 * ($page+1)-1)) {
2399                 $navExtra .= " &sdot; " .
2400                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2401         } else {
2402                 $navExtra .= " &sdot; next";
2403         }
2404         print git_navbar($project, $hash, "shortlog", $navExtra);
2405         print "<div>\n" .
2406               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2407               "</div>\n";
2408         print "<table cellspacing=\"0\">\n";
2409         my $alternate = 0;
2410         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2411                 my $commit = $revlist[$i];
2412                 my $ref = "";
2413                 if (defined $refs->{$commit}) {
2414                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2415                 }
2416                 my %co = git_read_commit($commit);
2417                 my %ad = date_str($co{'author_epoch'});
2418                 if ($alternate) {
2419                         print "<tr class=\"dark\">\n";
2420                 } else {
2421                         print "<tr class=\"light\">\n";
2422                 }
2423                 $alternate ^= 1;
2424                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2425                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2426                       "<td>";
2427                 if (length($co{'title_short'}) < length($co{'title'})) {
2428                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2429                               "<b>" . committags_shortlog(esc_html($co{'title_short'}), ("$my_uri?" . esc_param("p=$project;a=commit;h=$commit"))) . "$ref</b>");
2430                 } else {
2431                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2432                               "<b>" . committags_shortlog(esc_html($co{'title_short'}), ("$my_uri?" . esc_param("p=$project;a=commit;h=$commit"))) . "$ref</b>");
2433                 }
2434                 print "</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                       " | " . $cgi->a({-href => "$snapshots_url/$project-snapshot-$commit.tar.bz2"}, "snapshot") .
2439                       "</td>\n" .
2440                       "</tr>";
2441         }
2442         if ($#revlist >= (100 * ($page+1)-1)) {
2443                 print "<tr>\n" .
2444                       "<td>" .
2445                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2446                       "</td>\n" .
2447                       "</tr>\n";
2448         }
2449         print "</table\n>";
2450         git_footer_html();
2451 }