Andrew's git - gitweb.git/blob

   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
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17binmode STDOUT, ':utf8';
  18
  19my $cgi = new CGI;
  20my $version =           "259";
  21my $my_url =            $cgi->url();
  22my $my_uri =            $cgi->url(-absolute => 1);
  23my $rss_link =          "";
  24
  25# absolute fs-path which will be prepended to the project path
  26#my $projectroot =      "/pub/scm";
  27my $projectroot =       "/home/kay/public_html/pub/scm";
  28
  29# location of the git-core binaries
  30my $gitbin =            "/usr/bin";
  31
  32# location for temporary files needed for diffs
  33my $git_temp =          "/tmp/gitweb";
  34
  35# target of the home link on top of all pages
  36my $home_link =         $my_uri;
  37
  38# html text to include at home page
  39my $home_text =         "indextext.html";
  40
  41# source of projects list
  42#my $projects_list =    $projectroot;
  43my $projects_list =     "index/index.aux";
  44
  45# input validation and dispatch
  46my $action = $cgi->param('a');
  47if (defined $action) {
  48        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  49                undef $action;
  50                die_error(undef, "Invalid action parameter.");
  51        }
  52        if ($action eq "git-logo.png") {
  53                git_logo();
  54                exit;
  55        } elsif ($action eq "opml") {
  56                git_opml();
  57                exit;
  58        }
  59}
  60
  61my $order = $cgi->param('o');
  62if (defined $order) {
  63        if ($order =~ m/[^0-9a-zA-Z_]/) {
  64                undef $order;
  65                die_error(undef, "Invalid order parameter.");
  66        }
  67}
  68
  69my $project = $cgi->param('p');
  70if (defined $project) {
  71        $project = validate_input($project);
  72        if (!defined($project)) {
  73                die_error(undef, "Invalid project parameter.");
  74        }
  75        if (!(-d "$projectroot/$project")) {
  76                undef $project;
  77                die_error(undef, "No such directory.");
  78        }
  79        if (!(-e "$projectroot/$project/HEAD")) {
  80                undef $project;
  81                die_error(undef, "No such project.");
  82        }
  83        $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
  84                    "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
  85        $ENV{'GIT_DIR'} = "$projectroot/$project";
  86} else {
  87        git_project_list();
  88        exit;
  89}
  90
  91my $file_name = $cgi->param('f');
  92if (defined $file_name) {
  93        $file_name = validate_input($file_name);
  94        if (!defined($file_name)) {
  95                die_error(undef, "Invalid file parameter.");
  96        }
  97}
  98
  99my $hash = $cgi->param('h');
 100if (defined $hash) {
 101        $hash = validate_input($hash);
 102        if (!defined($hash)) {
 103                die_error(undef, "Invalid hash parameter.");
 104        }
 105}
 106
 107my $hash_parent = $cgi->param('hp');
 108if (defined $hash_parent) {
 109        $hash_parent = validate_input($hash_parent);
 110        if (!defined($hash_parent)) {
 111                die_error(undef, "Invalid hash parent parameter.");
 112        }
 113}
 114
 115my $hash_base = $cgi->param('hb');
 116if (defined $hash_base) {
 117        $hash_base = validate_input($hash_base);
 118        if (!defined($hash_base)) {
 119                die_error(undef, "Invalid hash base parameter.");
 120        }
 121}
 122
 123my $page = $cgi->param('pg');
 124if (defined $page) {
 125        if ($page =~ m/[^0-9]$/) {
 126                undef $page;
 127                die_error(undef, "Invalid page parameter.");
 128        }
 129}
 130
 131my $searchtext = $cgi->param('s');
 132if (defined $searchtext) {
 133        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 134                undef $searchtext;
 135                die_error(undef, "Invalid search parameter.");
 136        }
 137        $searchtext = quotemeta $searchtext;
 138}
 139
 140sub validate_input {
 141        my $input = shift;
 142
 143        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 144                return $input;
 145        }
 146        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 147                return undef;
 148        }
 149        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 150                return undef;
 151        }
 152        return $input;
 153}
 154
 155if (!defined $action || $action eq "summary") {
 156        git_summary();
 157        exit;
 158} elsif ($action eq "heads") {
 159        git_heads();
 160        exit;
 161} elsif ($action eq "tags") {
 162        git_tags();
 163        exit;
 164} elsif ($action eq "blob") {
 165        git_blob();
 166        exit;
 167} elsif ($action eq "blob_plain") {
 168        git_blob_plain();
 169        exit;
 170} elsif ($action eq "tree") {
 171        git_tree();
 172        exit;
 173} elsif ($action eq "rss") {
 174        git_rss();
 175        exit;
 176} elsif ($action eq "commit") {
 177        git_commit();
 178        exit;
 179} elsif ($action eq "log") {
 180        git_log();
 181        exit;
 182} elsif ($action eq "blobdiff") {
 183        git_blobdiff();
 184        exit;
 185} elsif ($action eq "blobdiff_plain") {
 186        git_blobdiff_plain();
 187        exit;
 188} elsif ($action eq "commitdiff") {
 189        git_commitdiff();
 190        exit;
 191} elsif ($action eq "commitdiff_plain") {
 192        git_commitdiff_plain();
 193        exit;
 194} elsif ($action eq "history") {
 195        git_history();
 196        exit;
 197} elsif ($action eq "search") {
 198        git_search();
 199        exit;
 200} elsif ($action eq "shortlog") {
 201        git_shortlog();
 202        exit;
 203} elsif ($action eq "tag") {
 204        git_tag();
 205        exit;
 206} else {
 207        undef $action;
 208        die_error(undef, "Unknown action.");
 209        exit;
 210}
 211
 212# quote unsafe chars, but keep the slash, even when it's not
 213# correct, but quoted slashes look too horrible in bookmarks
 214sub esc_param {
 215        my $str = shift;
 216        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 217        $str =~ s/\+/%2B/g;
 218        $str =~ s/ /\+/g;
 219        return $str;
 220}
 221
 222# replace invalid utf8 character with SUBSTITUTION sequence
 223sub esc_html {
 224        my $str = shift;
 225        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 226        $str = escapeHTML($str);
 227        return $str;
 228}
 229
 230# git may return quoted and escaped filenames
 231sub unquote {
 232        my $str = shift;
 233        if ($str =~ m/^"(.*)"$/) {
 234                $str = $1;
 235                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 236        }
 237        return $str;
 238}
 239
 240sub git_header_html {
 241        my $status = shift || "200 OK";
 242        my $expires = shift;
 243
 244        my $title = "git";
 245        if (defined $project) {
 246                $title .= " - $project";
 247                if (defined $action) {
 248                        $title .= "/$action";
 249                }
 250        }
 251        print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status, -expires => $expires);
 252        print <<EOF;
 253<?xml version="1.0" encoding="utf-8"?>
 254<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 255<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 256<!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 257<head>
 258<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
 259<meta name="robots" content="index, nofollow"/>
 260<title>$title</title>
 261$rss_link
 262<style type="text/css">
 263body { font-family: sans-serif; font-size: 12px; margin:0px; border:solid #d9d8d1; border-width:1px; margin:10px; }
 264a { color:#0000cc; }
 265a:hover, a:visited, a:active { color:#880000; }
 266div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
 267div.page_header a:visited, a.header { color:#0000cc; }
 268div.page_header a:hover { color:#880000; }
 269div.page_nav { padding:8px; }
 270div.page_nav a:visited { color:#0000cc; }
 271div.page_path { padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
 272div.page_footer { height:17px; padding:4px 8px; background-color: #d9d8d1; }
 273div.page_footer_text { float:left; color:#555555; font-style:italic; }
 274div.page_body { padding:8px; }
 275div.title, a.title {
 276        display:block; padding:6px 8px;
 277        font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 278}
 279a.title:hover { background-color: #d9d8d1; }
 280div.title_text { padding:6px 0px; border: solid #d9d8d1; border-width:0px 0px 1px; }
 281div.log_body { padding:8px 8px 8px 150px; }
 282span.age { position:relative; float:left; width:142px; font-style:italic; }
 283div.log_link {
 284        padding:0px 8px;
 285        font-size:10px; font-family:sans-serif; font-style:normal;
 286        position:relative; float:left; width:136px;
 287}
 288div.list_head { padding:6px 8px 4px; border:solid #d9d8d1; border-width:1px 0px 0px; font-style:italic; }
 289a.list { text-decoration:none; color:#000000; }
 290a.list:hover { text-decoration:underline; color:#880000; }
 291a.text { text-decoration:none; color:#0000cc; }
 292a.text:visited { text-decoration:none; color:#880000; }
 293a.text:hover { text-decoration:underline; color:#880000; }
 294table { padding:8px 4px; }
 295th { padding:2px 5px; font-size:12px; text-align:left; }
 296tr.light:hover { background-color:#edece6; }
 297tr.dark { background-color:#f6f6f0; }
 298tr.dark:hover { background-color:#edece6; }
 299td { padding:2px 5px; font-size:12px; vertical-align:top; }
 300td.link { padding:2px 5px; font-family:sans-serif; font-size:10px; }
 301div.pre { font-family:monospace; font-size:12px; white-space:pre; }
 302div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
 303div.index_include { border:solid #d9d8d1; border-width:0px 0px 1px; padding:12px 8px; }
 304div.search { margin:4px 8px; position:absolute; top:56px; right:12px }
 305a.linenr { color:#999999; text-decoration:none }
 306a.rss_logo {
 307        float:right; padding:3px 0px; width:35px; line-height:10px;
 308        border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 309        color:#ffffff; background-color:#ff6600;
 310        font-weight:bold; font-family:sans-serif; font-size:10px;
 311        text-align:center; text-decoration:none;
 312}
 313a.rss_logo:hover { background-color:#ee5500; }
 314span.tag {
 315        padding:0px 4px; font-size:10px;
 316        background-color:#ffffaa; border:1px solid; border-color:#ffffcc #ffee00 #ffee00 #ffffcc;
 317}
 318</style>
 319</head>
 320<body>
 321EOF
 322        print "<div class=\"page_header\">\n" .
 323              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 324              "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 325              "</a>\n";
 326        print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
 327        if (defined $project) {
 328                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
 329                if (defined $action) {
 330                        print " / $action";
 331                }
 332                print "\n";
 333                if (!defined $searchtext) {
 334                        $searchtext = "";
 335                }
 336                my $search_hash;
 337                if (defined $hash) {
 338                        $search_hash = $hash;
 339                } else {
 340                        $search_hash  = "HEAD";
 341                }
 342                $cgi->param("a", "search");
 343                $cgi->param("h", $search_hash);
 344                print $cgi->startform(-method => "get", -action => $my_uri) .
 345                      "<div class=\"search\">\n" .
 346                      $cgi->hidden(-name => "p") . "\n" .
 347                      $cgi->hidden(-name => "a") . "\n" .
 348                      $cgi->hidden(-name => "h") . "\n" .
 349                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 350                      "</div>" .
 351                      $cgi->end_form() . "\n";
 352        }
 353        print "</div>\n";
 354}
 355
 356sub git_footer_html {
 357        print "<div class=\"page_footer\">\n";
 358        if (defined $project) {
 359                my $descr = git_read_description($project);
 360                if (defined $descr) {
 361                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 362                }
 363                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 364        } else {
 365                print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 366        }
 367        print "</div>\n" .
 368              "</body>\n" .
 369              "</html>";
 370}
 371
 372sub die_error {
 373        my $status = shift || "403 Forbidden";
 374        my $error = shift || "Malformed query, file missing or permission denied"; 
 375
 376        git_header_html($status);
 377        print "<div class=\"page_body\">\n" .
 378              "<br/><br/>\n" .
 379              "$status - $error\n" .
 380              "<br/>\n" .
 381              "</div>\n";
 382        git_footer_html();
 383        exit;
 384}
 385
 386sub git_get_type {
 387        my $hash = shift;
 388
 389        open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
 390        my $type = <$fd>;
 391        close $fd or return;
 392        chomp $type;
 393        return $type;
 394}
 395
 396sub git_read_hash {
 397        my $path = shift;
 398
 399        open my $fd, "$projectroot/$path" or return undef;
 400        my $head = <$fd>;
 401        close $fd;
 402        chomp $head;
 403        if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 404                return $head;
 405        }
 406}
 407
 408sub git_read_description {
 409        my $path = shift;
 410
 411        open my $fd, "$projectroot/$path/description" or return undef;
 412        my $descr = <$fd>;
 413        close $fd;
 414        chomp $descr;
 415        return $descr;
 416}
 417
 418sub git_read_tag {
 419        my $tag_id = shift;
 420        my %tag;
 421        my @comment;
 422
 423        open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
 424        $tag{'id'} = $tag_id;
 425        while (my $line = <$fd>) {
 426                chomp $line;
 427                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 428                        $tag{'object'} = $1;
 429                } elsif ($line =~ m/^type (.+)$/) {
 430                        $tag{'type'} = $1;
 431                } elsif ($line =~ m/^tag (.+)$/) {
 432                        $tag{'name'} = $1;
 433                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 434                        $tag{'author'} = $1;
 435                        $tag{'epoch'} = $2;
 436                        $tag{'tz'} = $3;
 437                } elsif ($line =~ m/--BEGIN/) {
 438                        push @comment, $line;
 439                        last;
 440                } elsif ($line eq "") {
 441                        last;
 442                }
 443        }
 444        push @comment, <$fd>;
 445        $tag{'comment'} = \@comment;
 446        close $fd or return;
 447        if (!defined $tag{'name'}) {
 448                return
 449        };
 450        return %tag
 451}
 452
 453sub age_string {
 454        my $age = shift;
 455        my $age_str;
 456
 457        if ($age > 60*60*24*365*2) {
 458                $age_str = (int $age/60/60/24/365);
 459                $age_str .= " years ago";
 460        } elsif ($age > 60*60*24*(365/12)*2) {
 461                $age_str = int $age/60/60/24/(365/12);
 462                $age_str .= " months ago";
 463        } elsif ($age > 60*60*24*7*2) {
 464                $age_str = int $age/60/60/24/7;
 465                $age_str .= " weeks ago";
 466        } elsif ($age > 60*60*24*2) {
 467                $age_str = int $age/60/60/24;
 468                $age_str .= " days ago";
 469        } elsif ($age > 60*60*2) {
 470                $age_str = int $age/60/60;
 471                $age_str .= " hours ago";
 472        } elsif ($age > 60*2) {
 473                $age_str = int $age/60;
 474                $age_str .= " min ago";
 475        } elsif ($age > 2) {
 476                $age_str = int $age;
 477                $age_str .= " sec ago";
 478        } else {
 479                $age_str .= " right now";
 480        }
 481        return $age_str;
 482}
 483
 484sub git_read_commit {
 485        my $commit_id = shift;
 486        my $commit_text = shift;
 487
 488        my @commit_lines;
 489        my %co;
 490
 491        if (defined $commit_text) {
 492                @commit_lines = @$commit_text;
 493        } else {
 494                $/ = "\0";
 495                open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
 496                @commit_lines = split '\n', <$fd>;
 497                close $fd or return;
 498                $/ = "\n";
 499                pop @commit_lines;
 500        }
 501        my $header = shift @commit_lines;
 502        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 503                return;
 504        }
 505        ($co{'id'}, my @parents) = split ' ', $header;
 506        $co{'parents'} = \@parents;
 507        $co{'parent'} = $parents[0];
 508        while (my $line = shift @commit_lines) {
 509                last if $line eq "\n";
 510                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 511                        $co{'tree'} = $1;
 512                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 513                        $co{'author'} = $1;
 514                        $co{'author_epoch'} = $2;
 515                        $co{'author_tz'} = $3;
 516                        if ($co{'author'} =~ m/^([^<]+) </) {
 517                                $co{'author_name'} = $1;
 518                        } else {
 519                                $co{'author_name'} = $co{'author'};
 520                        }
 521                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 522                        $co{'committer'} = $1;
 523                        $co{'committer_epoch'} = $2;
 524                        $co{'committer_tz'} = $3;
 525                        $co{'committer_name'} = $co{'committer'};
 526                        $co{'committer_name'} =~ s/ <.*//;
 527                }
 528        }
 529        if (!defined $co{'tree'}) {
 530                return;
 531        };
 532
 533        foreach my $title (@commit_lines) {
 534                if ($title ne "") {
 535                        $co{'title'} = chop_str($title, 80, 5);
 536                        # remove leading stuff of merges to make the interesting part visible
 537                        if (length($title) > 50) {
 538                                $title =~ s/^Automatic //;
 539                                $title =~ s/^merge (of|with) /Merge ... /i;
 540                                if (length($title) > 50) {
 541                                        $title =~ s/(http|rsync):\/\///;
 542                                }
 543                                if (length($title) > 50) {
 544                                        $title =~ s/(master|www|rsync)\.//;
 545                                }
 546                                if (length($title) > 50) {
 547                                        $title =~ s/kernel.org:?//;
 548                                }
 549                                if (length($title) > 50) {
 550                                        $title =~ s/\/pub\/scm//;
 551                                }
 552                        }
 553                        $co{'title_short'} = chop_str($title, 50, 5);
 554                        last;
 555                }
 556        }
 557        # remove added spaces
 558        foreach my $line (@commit_lines) {
 559                $line =~ s/^    //;
 560        }
 561        $co{'comment'} = \@commit_lines;
 562
 563        my $age = time - $co{'committer_epoch'};
 564        $co{'age'} = $age;
 565        $co{'age_string'} = age_string($age);
 566        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 567        if ($age > 60*60*24*7*2) {
 568                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 569                $co{'age_string_age'} = $co{'age_string'};
 570        } else {
 571                $co{'age_string_date'} = $co{'age_string'};
 572                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 573        }
 574        return %co;
 575}
 576
 577sub git_diff_print {
 578        my $from = shift;
 579        my $from_name = shift;
 580        my $to = shift;
 581        my $to_name = shift;
 582        my $format = shift || "html";
 583
 584        my $from_tmp = "/dev/null";
 585        my $to_tmp = "/dev/null";
 586        my $pid = $$;
 587
 588        # create tmp from-file
 589        if (defined $from) {
 590                $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 591                open my $fd2, "> $from_tmp";
 592                open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 593                my @file = <$fd>;
 594                print $fd2 @file;
 595                close $fd2;
 596                close $fd;
 597        }
 598
 599        # create tmp to-file
 600        if (defined $to) {
 601                $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 602                open my $fd2, "> $to_tmp";
 603                open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 604                my @file = <$fd>;
 605                print $fd2 @file;
 606                close $fd2;
 607                close $fd;
 608        }
 609
 610        open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 611        if ($format eq "plain") {
 612                undef $/;
 613                print <$fd>;
 614                $/ = "\n";
 615        } else {
 616                while (my $line = <$fd>) {
 617                        chomp($line);
 618                        my $char = substr($line, 0, 1);
 619                        my $color = "";
 620                        if ($char eq '+') {
 621                                $color = " style=\"color:#008800;\"";
 622                        } elsif ($char eq "-") {
 623                                $color = " style=\"color:#cc0000;\"";
 624                        } elsif ($char eq "@") {
 625                                $color = " style=\"color:#990099;\"";
 626                        } elsif ($char eq "\\") {
 627                                # skip errors
 628                                next;
 629                        }
 630                        while ((my $pos = index($line, "\t")) != -1) {
 631                                if (my $count = (8 - (($pos-1) % 8))) {
 632                                        my $spaces = ' ' x $count;
 633                                        $line =~ s/\t/$spaces/;
 634                                }
 635                        }
 636                        print "<div class=\"pre\"$color>" . esc_html($line) . "</div>\n";
 637                }
 638        }
 639        close $fd;
 640
 641        if (defined $from) {
 642                unlink($from_tmp);
 643        }
 644        if (defined $to) {
 645                unlink($to_tmp);
 646        }
 647}
 648
 649sub mode_str {
 650        my $mode = oct shift;
 651
 652        if (S_ISDIR($mode & S_IFMT)) {
 653                return 'drwxr-xr-x';
 654        } elsif (S_ISLNK($mode)) {
 655                return 'lrwxrwxrwx';
 656        } elsif (S_ISREG($mode)) {
 657                # git cares only about the executable bit
 658                if ($mode & S_IXUSR) {
 659                        return '-rwxr-xr-x';
 660                } else {
 661                        return '-rw-r--r--';
 662                };
 663        } else {
 664                return '----------';
 665        }
 666}
 667
 668sub chop_str {
 669        my $str = shift;
 670        my $len = shift;
 671        my $add_len = shift || 10;
 672
 673        # allow only $len chars, but don't cut a word if it would fit in $add_len
 674        # if it doesn't fit, cut it if it's still longer than the dots we would add
 675        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 676        my $body = $1;
 677        my $tail = $2;
 678        if (length($tail) > 4) {
 679                $tail = " ...";
 680        }
 681        return "$body$tail";
 682}
 683
 684sub file_type {
 685        my $mode = oct shift;
 686
 687        if (S_ISDIR($mode & S_IFMT)) {
 688                return "directory";
 689        } elsif (S_ISLNK($mode)) {
 690                return "symlink";
 691        } elsif (S_ISREG($mode)) {
 692                return "file";
 693        } else {
 694                return "unknown";
 695        }
 696}
 697
 698sub format_log_line_html {
 699        my $line = shift;
 700
 701        $line = esc_html($line);
 702        $line =~ s/ /&nbsp;/g;
 703        if ($line =~ m/([0-9a-fA-F]{40})/) {
 704                my $hash_text = $1;
 705                if (git_get_type($hash_text) eq "commit") {
 706                        my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 707                        $line =~ s/$hash_text/$link/;
 708                }
 709        }
 710        return $line;
 711}
 712
 713sub date_str {
 714        my $epoch = shift;
 715        my $tz = shift || "-0000";
 716
 717        my %date;
 718        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 719        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 720        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 721        $date{'hour'} = $hour;
 722        $date{'minute'} = $min;
 723        $date{'mday'} = $mday;
 724        $date{'day'} = $days[$wday];
 725        $date{'month'} = $months[$mon];
 726        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 727        $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 728
 729        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 730        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 731        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 732        $date{'hour_local'} = $hour;
 733        $date{'minute_local'} = $min;
 734        $date{'tz_local'} = $tz;
 735        return %date;
 736}
 737
 738# git-logo (cached in browser for one day)
 739sub git_logo {
 740        binmode STDOUT, ':raw';
 741        print $cgi->header(-type => 'image/png', -expires => '+1d');
 742        # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 743        print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 744                "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 745                "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 746                "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 747                "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 748                "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 749                "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 750                "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 751                "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 752                "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 753                "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 754                "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 755                "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 756}
 757
 758sub get_file_owner {
 759        my $path = shift;
 760
 761        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 762        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 763        if (!defined $gcos) {
 764                return undef;
 765        }
 766        my $owner = $gcos;
 767        $owner =~ s/[,;].*$//;
 768        return $owner;
 769}
 770
 771sub git_read_projects {
 772        my @list;
 773
 774        if (-d $projects_list) {
 775                # search in directory
 776                my $dir = $projects_list;
 777                opendir my $dh, $dir or return undef;
 778                while (my $dir = readdir($dh)) {
 779                        if (-e "$projectroot/$dir/HEAD") {
 780                                my $pr = {
 781                                        path => $dir,
 782                                };
 783                                push @list, $pr
 784                        }
 785                }
 786                closedir($dh);
 787        } elsif (-f $projects_list) {
 788                # read from file(url-encoded):
 789                # 'git%2Fgit.git Linus+Torvalds'
 790                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 791                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 792                open my $fd , $projects_list or return undef;
 793                while (my $line = <$fd>) {
 794                        chomp $line;
 795                        my ($path, $owner) = split ' ', $line;
 796                        $path = unescape($path);
 797                        $owner = unescape($owner);
 798                        if (!defined $path) {
 799                                next;
 800                        }
 801                        if (-e "$projectroot/$path/HEAD") {
 802                                my $pr = {
 803                                        path => $path,
 804                                        owner => $owner,
 805                                };
 806                                push @list, $pr
 807                        }
 808                }
 809                close $fd;
 810        }
 811        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 812        return @list;
 813}
 814
 815sub git_project_list {
 816        my @list = git_read_projects();
 817        my @projects;
 818        if (!@list) {
 819                die_error(undef, "No project found.");
 820        }
 821        foreach my $pr (@list) {
 822                my $head = git_read_hash("$pr->{'path'}/HEAD");
 823                if (!defined $head) {
 824                        next;
 825                }
 826                $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 827                my %co = git_read_commit($head);
 828                if (!%co) {
 829                        next;
 830                }
 831                $pr->{'commit'} = \%co;
 832                if (!defined $pr->{'descr'}) {
 833                        my $descr = git_read_description($pr->{'path'}) || "";
 834                        $pr->{'descr'} = chop_str($descr, 25, 5);
 835                }
 836                if (!defined $pr->{'owner'}) {
 837                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 838                }
 839                push @projects, $pr;
 840        }
 841        git_header_html();
 842        if (-f $home_text) {
 843                print "<div class=\"index_include\">\n";
 844                open (my $fd, $home_text);
 845                print <$fd>;
 846                close $fd;
 847                print "</div>\n";
 848        }
 849        print "<table cellspacing=\"0\">\n" .
 850              "<tr>\n";
 851        if (!defined($order) || (defined($order) && ($order eq "project"))) {
 852                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 853                print "<th>Project</th>\n";
 854        } else {
 855                print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 856        }
 857        if (defined($order) && ($order eq "descr")) {
 858                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 859                print "<th>Description</th>\n";
 860        } else {
 861                print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 862        }
 863        if (defined($order) && ($order eq "owner")) {
 864                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 865                print "<th>Owner</th>\n";
 866        } else {
 867                print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 868        }
 869        if (defined($order) && ($order eq "age")) {
 870                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 871                print "<th>Last Change</th>\n";
 872        } else {
 873                print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 874        }
 875        print "<th></th>\n" .
 876              "</tr>\n";
 877        my $alternate = 0;
 878        foreach my $pr (@projects) {
 879                if ($alternate) {
 880                        print "<tr class=\"dark\">\n";
 881                } else {
 882                        print "<tr class=\"light\">\n";
 883                }
 884                $alternate ^= 1;
 885                print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 886                      "<td>$pr->{'descr'}</td>\n" .
 887                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 888                my $colored_age;
 889                if ($pr->{'commit'}{'age'} < 60*60*2) {
 890                        $colored_age = "<span style =\"color: #009900;\"><b><i>$pr->{'commit'}{'age_string'}</i></b></span>";
 891                } elsif ($pr->{'commit'}{'age'} < 60*60*24*2) {
 892                        $colored_age = "<span style =\"color: #009900;\"><i>$pr->{'commit'}{'age_string'}</i></span>";
 893                } else {
 894                        $colored_age = "<i>$pr->{'commit'}{'age_string'}</i>";
 895                }
 896                print "<td>$colored_age</td>\n" .
 897                      "<td class=\"link\">" .
 898                      $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 899                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 900                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
 901                      "</td>\n" .
 902                      "</tr>\n";
 903        }
 904        print "</table>\n";
 905        git_footer_html();
 906}
 907
 908sub read_info_ref {
 909        my %refs;
 910        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 911        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 912        open my $fd, "$projectroot/$project/info/refs" or return;
 913        while (my $line = <$fd>) {
 914                if ($line =~ m/^([0-9a-fA-F]{40})\t.*\/([^\^]+)/) {
 915                        if (defined $refs{$1}) {
 916                                $refs{$1} .= " / $2";
 917                        } else {
 918                                $refs{$1} = $2;
 919                        }
 920                }
 921        }
 922        close $fd or return;
 923        return \%refs;
 924}
 925
 926sub git_read_refs {
 927        my $ref_dir = shift;
 928        my @reflist;
 929
 930        my @refs;
 931        opendir my $dh, "$projectroot/$project/$ref_dir";
 932        while (my $dir = readdir($dh)) {
 933                if ($dir =~ m/^\./) {
 934                        next;
 935                }
 936                if (-d "$projectroot/$project/$ref_dir/$dir") {
 937                        opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
 938                        my @subdirs = grep !m/^\./, readdir $dh2;
 939                        closedir($dh2);
 940                        foreach my $subdir (@subdirs) {
 941                                push @refs, "$dir/$subdir"
 942                        }
 943                        next;
 944                }
 945                push @refs, $dir;
 946        }
 947        closedir($dh);
 948        foreach my $ref_file (@refs) {
 949                my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
 950                my $type = git_get_type($ref_id) || next;
 951                my %ref_item;
 952                my %co;
 953                $ref_item{'type'} = $type;
 954                $ref_item{'id'} = $ref_id;
 955                $ref_item{'epoch'} = 0;
 956                $ref_item{'age'} = "unknown";
 957                if ($type eq "tag") {
 958                        my %tag = git_read_tag($ref_id);
 959                        $ref_item{'comment'} = $tag{'comment'};
 960                        if ($tag{'type'} eq "commit") {
 961                                %co = git_read_commit($tag{'object'});
 962                                $ref_item{'epoch'} = $co{'committer_epoch'};
 963                                $ref_item{'age'} = $co{'age_string'};
 964                        } elsif (defined($tag{'epoch'})) {
 965                                my $age = time - $tag{'epoch'};
 966                                $ref_item{'epoch'} = $tag{'epoch'};
 967                                $ref_item{'age'} = age_string($age);
 968                        }
 969                        $ref_item{'reftype'} = $tag{'type'};
 970                        $ref_item{'name'} = $tag{'name'};
 971                        $ref_item{'refid'} = $tag{'object'};
 972                } elsif ($type eq "commit"){
 973                        %co = git_read_commit($ref_id);
 974                        $ref_item{'reftype'} = "commit";
 975                        $ref_item{'name'} = $ref_file;
 976                        $ref_item{'title'} = $co{'title'};
 977                        $ref_item{'refid'} = $ref_id;
 978                        $ref_item{'epoch'} = $co{'committer_epoch'};
 979                        $ref_item{'age'} = $co{'age_string'};
 980                }
 981
 982                push @reflist, \%ref_item;
 983        }
 984        # sort tags by age
 985        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 986        return \@reflist;
 987}
 988
 989sub git_summary {
 990        my $descr = git_read_description($project) || "none";
 991        my $head = git_read_hash("$project/HEAD");
 992        my %co = git_read_commit($head);
 993        my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 994
 995        my $owner;
 996        if (-f $projects_list) {
 997                open (my $fd , $projects_list);
 998                while (my $line = <$fd>) {
 999                        chomp $line;
1000                        my ($pr, $ow) = split ' ', $line;
1001                        $pr = unescape($pr);
1002                        $ow = unescape($ow);
1003                        if ($pr eq $project) {
1004                                $owner = $ow;
1005                                last;
1006                        }
1007                }
1008                close $fd;
1009        }
1010        if (!defined $owner) {
1011                $owner = get_file_owner("$projectroot/$project");
1012        }
1013
1014        my $refs = read_info_ref();
1015        git_header_html();
1016        print "<div class=\"page_nav\">\n" .
1017              "summary".
1018              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1019              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1020              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1021              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1022              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
1023              "<br/><br/>\n" .
1024              "</div>\n";
1025        print "<div class=\"title\">&nbsp;</div>\n";
1026        print "<table cellspacing=\"0\">\n" .
1027              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1028              "<tr><td>owner</td><td>$owner</td></tr>\n" .
1029              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1030              "</table>\n";
1031        open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
1032        my (@revlist) = map { chomp; $_ } <$fd>;
1033        close $fd;
1034        print "<div>\n" .
1035              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1036              "</div>\n";
1037        my $i = 16;
1038        print "<table cellspacing=\"0\">\n";
1039        my $alternate = 0;
1040        foreach my $commit (@revlist) {
1041                my %co = git_read_commit($commit);
1042                my %ad = date_str($co{'author_epoch'});
1043                if ($alternate) {
1044                        print "<tr class=\"dark\">\n";
1045                } else {
1046                        print "<tr class=\"light\">\n";
1047                }
1048                $alternate ^= 1;
1049                if ($i-- > 0) {
1050                        print "<td><i>$co{'age_string'}</i></td>\n" .
1051                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1052                              "<td>";
1053                        if (length($co{'title_short'}) < length($co{'title'})) {
1054                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1055                                      "<b>" . esc_html($co{'title_short'}) . "</b>");
1056                        } else {
1057                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1058                                      "<b>" . esc_html($co{'title'}) . "</b>");
1059                        }
1060                        if (defined $refs->{$commit}) {
1061                                print " <span class=\"tag\">$refs->{$commit}</span>";
1062                        }
1063                        print "</td>\n" .
1064                              "<td class=\"link\">" .
1065                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1066                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1067                              "</td>\n" .
1068                              "</tr>";
1069                } else {
1070                        print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1071                        "</tr>";
1072                        last;
1073                }
1074        }
1075        print "</table\n>";
1076
1077        my $taglist = git_read_refs("refs/tags");
1078        if (defined @$taglist) {
1079                print "<div>\n" .
1080                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1081                      "</div>\n";
1082                my $i = 16;
1083                print "<table cellspacing=\"0\">\n";
1084                my $alternate = 0;
1085                foreach my $entry (@$taglist) {
1086                        my %tag = %$entry;
1087                        my $comment_lines = $tag{'comment'};
1088                        my $comment = shift @$comment_lines;
1089                        if (defined($comment)) {
1090                                $comment = chop_str($comment, 30, 5);
1091                        }
1092                        if ($alternate) {
1093                                print "<tr class=\"dark\">\n";
1094                        } else {
1095                                print "<tr class=\"light\">\n";
1096                        }
1097                        $alternate ^= 1;
1098                        if ($i-- > 0) {
1099                                print "<td><i>$tag{'age'}</i></td>\n" .
1100                                      "<td>" .
1101                                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1102                                      "<b>" . esc_html($tag{'name'}) . "</b>") .
1103                                      "</td>\n" .
1104                                      "<td>";
1105                                if (defined($comment)) {
1106                                      print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1107                                }
1108                                print "</td>\n" .
1109                                      "<td class=\"link\">";
1110                                if ($tag{'type'} eq "tag") {
1111                                      print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1112                                }
1113                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1114                                if ($tag{'reftype'} eq "commit") {
1115                                      print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1116                                            " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1117                                }
1118                                print "</td>\n" .
1119                                      "</tr>";
1120                        } else {
1121                                print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1122                                "</tr>";
1123                                last;
1124                        }
1125                }
1126                print "</table\n>";
1127        }
1128
1129        my $headlist = git_read_refs("refs/heads");
1130        if (defined @$headlist) {
1131                print "<div>\n" .
1132                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1133                      "</div>\n";
1134                my $i = 16;
1135                print "<table cellspacing=\"0\">\n";
1136                my $alternate = 0;
1137                foreach my $entry (@$headlist) {
1138                        my %tag = %$entry;
1139                        if ($alternate) {
1140                                print "<tr class=\"dark\">\n";
1141                        } else {
1142                                print "<tr class=\"light\">\n";
1143                        }
1144                        $alternate ^= 1;
1145                        if ($i-- > 0) {
1146                                print "<td><i>$tag{'age'}</i></td>\n" .
1147                                      "<td>" .
1148                                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1149                                      "<b>" . esc_html($tag{'name'}) . "</b>") .
1150                                      "</td>\n" .
1151                                      "<td class=\"link\">" .
1152                                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1153                                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1154                                      "</td>\n" .
1155                                      "</tr>";
1156                        } else {
1157                                print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1158                                "</tr>";
1159                                last;
1160                        }
1161                }
1162                print "</table\n>";
1163        }
1164        git_footer_html();
1165}
1166
1167sub git_tag {
1168        my $head = git_read_hash("$project/HEAD");
1169        git_header_html();
1170        print "<div class=\"page_nav\">\n" .
1171              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1172              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1173              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1174              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1175              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1176              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1177              "<br/>\n" .
1178              "</div>\n";
1179        my %tag = git_read_tag($hash);
1180        print "<div>\n" .
1181              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1182              "</div>\n";
1183        print "<div class=\"title_text\">\n" .
1184              "<table cellspacing=\"0\">\n" .
1185              "<tr>\n" .
1186              "<td>object</td>\n" .
1187              "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1188              "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1189              "</tr>\n";
1190        if (defined($tag{'author'})) {
1191                my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1192                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1193                print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1194        }
1195        print "</table>\n\n" .
1196              "</div>\n";
1197        print "<div class=\"page_body\">";
1198        my $comment = $tag{'comment'};
1199        foreach my $line (@$comment) {
1200                print esc_html($line) . "<br/>\n";
1201        }
1202        print "</div>\n";
1203        git_footer_html();
1204}
1205
1206sub git_tags {
1207        my $head = git_read_hash("$project/HEAD");
1208        git_header_html();
1209        print "<div class=\"page_nav\">\n" .
1210              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1211              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1212              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1213              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1214              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1215              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1216              "<br/>\n" .
1217              "</div>\n";
1218        my $taglist = git_read_refs("refs/tags");
1219        print "<div>\n" .
1220              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1221              "</div>\n";
1222        print "<table cellspacing=\"0\">\n";
1223        my $alternate = 0;
1224        if (defined @$taglist) {
1225                foreach my $entry (@$taglist) {
1226                        my %tag = %$entry;
1227                        my $comment_lines = $tag{'comment'};
1228                        my $comment = shift @$comment_lines;
1229                        if (defined($comment)) {
1230                                $comment = chop_str($comment, 30, 5);
1231                        }
1232                        if ($alternate) {
1233                                print "<tr class=\"dark\">\n";
1234                        } else {
1235                                print "<tr class=\"light\">\n";
1236                        }
1237                        $alternate ^= 1;
1238                        print "<td><i>$tag{'age'}</i></td>\n" .
1239                              "<td>" .
1240                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1241                              "<b>" . esc_html($tag{'name'}) . "</b>") .
1242                              "</td>\n" .
1243                              "<td>";
1244                        if (defined($comment)) {
1245                              print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1246                        }
1247                        print "</td>\n" .
1248                              "<td class=\"link\">";
1249                        if ($tag{'type'} eq "tag") {
1250                              print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1251                        }
1252                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1253                        if ($tag{'reftype'} eq "commit") {
1254                              print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1255                                    " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1256                        }
1257                        print "</td>\n" .
1258                              "</tr>";
1259                }
1260        }
1261        print "</table\n>";
1262        git_footer_html();
1263}
1264
1265sub git_heads {
1266        my $head = git_read_hash("$project/HEAD");
1267        git_header_html();
1268        print "<div class=\"page_nav\">\n" .
1269              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1270              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1271              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1272              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
1273              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
1274              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
1275              "<br/>\n" .
1276              "</div>\n";
1277        my $taglist = git_read_refs("refs/heads");
1278        print "<div>\n" .
1279              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1280              "</div>\n";
1281        print "<table cellspacing=\"0\">\n";
1282        my $alternate = 0;
1283        if (defined @$taglist) {
1284                foreach my $entry (@$taglist) {
1285                        my %tag = %$entry;
1286                        if ($alternate) {
1287                                print "<tr class=\"dark\">\n";
1288                        } else {
1289                                print "<tr class=\"light\">\n";
1290                        }
1291                        $alternate ^= 1;
1292                        print "<td><i>$tag{'age'}</i></td>\n" .
1293                              "<td>" .
1294                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1295                              "</td>\n" .
1296                              "<td class=\"link\">" .
1297                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1298                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1299                              "</td>\n" .
1300                              "</tr>";
1301                }
1302        }
1303        print "</table\n>";
1304        git_footer_html();
1305}
1306
1307sub git_get_hash_by_path {
1308        my $base = shift;
1309        my $path = shift || return undef;
1310
1311        my $tree = $base;
1312        my @parts = split '/', $path;
1313        while (my $part = shift @parts) {
1314                open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
1315                my (@entries) = map { chomp; $_ } <$fd>;
1316                close $fd or return undef;
1317                foreach my $line (@entries) {
1318                        #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1319                        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1320                        my $t_mode = $1;
1321                        my $t_type = $2;
1322                        my $t_hash = $3;
1323                        my $t_name = validate_input(unquote($4));
1324                        if ($t_name eq $part) {
1325                                if (!(@parts)) {
1326                                        return $t_hash;
1327                                }
1328                                if ($t_type eq "tree") {
1329                                        $tree = $t_hash;
1330                                }
1331                                last;
1332                        }
1333                }
1334        }
1335}
1336
1337sub git_blob {
1338        if (!defined $hash && defined $file_name) {
1339                my $base = $hash_base || git_read_hash("$project/HEAD");
1340                $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
1341        }
1342        open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error(undef, "Open failed.");
1343        git_header_html();
1344        if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1345                print "<div class=\"page_nav\">\n" .
1346                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1347                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1348                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1349                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1350                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1351                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
1352                if (defined $file_name) {
1353                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1354                        " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
1355                } else {
1356                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
1357                }
1358                print "</div>\n".
1359                       "<div>" .
1360                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1361                      "</div>\n";
1362        } else {
1363                print "<div class=\"page_nav\">\n" .
1364                      "<br/><br/></div>\n" .
1365                      "<div class=\"title\">$hash</div>\n";
1366        }
1367        if (defined $file_name) {
1368                print "<div class=\"page_path\"><b>" . esc_html($file_name) . "</b></div>\n";
1369        }
1370        print "<div class=\"page_body\">\n";
1371        my $nr;
1372        while (my $line = <$fd>) {
1373                chomp $line;
1374                $nr++;
1375                while ((my $pos = index($line, "\t")) != -1) {
1376                        if (my $count = (8 - ($pos % 8))) {
1377                                my $spaces = ' ' x $count;
1378                                $line =~ s/\t/$spaces/;
1379                        }
1380                }
1381                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1382        }
1383        close $fd or print "Reading blob failed.\n";
1384        print "</div>";
1385        git_footer_html();
1386}
1387
1388sub git_blob_plain {
1389        my $save_as = "$hash.txt";
1390        if (defined $file_name) {
1391                $save_as = $file_name;
1392        }
1393        print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"$save_as\"");
1394        open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or return;
1395        undef $/;
1396        print <$fd>;
1397        $/ = "\n";
1398        close $fd;
1399}
1400
1401sub git_tree {
1402        if (!defined $hash) {
1403                $hash = git_read_hash("$project/HEAD");
1404                if (defined $file_name) {
1405                        my $base = $hash_base || git_read_hash("$project/HEAD");
1406                        $hash = git_get_hash_by_path($base, $file_name, "tree");
1407                }
1408                if (!defined $hash_base) {
1409                        $hash_base = git_read_hash("$project/HEAD");
1410                }
1411        }
1412        $/ = "\0";
1413        open my $fd, "-|", "$gitbin/git-ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
1414        chomp (my (@entries) = <$fd>);
1415        close $fd or die_error(undef, "Reading tree failed.");
1416        $/ = "\n";
1417
1418        git_header_html();
1419        my $base_key = "";
1420        my $base = "";
1421        if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1422                $base_key = ";hb=$hash_base";
1423                print "<div class=\"page_nav\">\n" .
1424                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1425                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
1426                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
1427                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1428                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1429                      " | tree" .
1430                      "<br/><br/>\n" .
1431                      "</div>\n";
1432                print "<div>\n" .
1433                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1434                      "</div>\n";
1435        } else {
1436                print "<div class=\"page_nav\">\n";
1437                print "<br/><br/></div>\n";
1438                print "<div class=\"title\">$hash</div>\n";
1439        }
1440        if (defined $file_name) {
1441                $base = esc_html("$file_name/");
1442                print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
1443        } else {
1444                print "<div class=\"page_path\"><b>/</b></div>\n";
1445        }
1446        print "<div class=\"page_body\">\n";
1447        print "<table cellspacing=\"0\">\n";
1448        my $alternate = 0;
1449        foreach my $line (@entries) {
1450                #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1451                $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1452                my $t_mode = $1;
1453                my $t_type = $2;
1454                my $t_hash = $3;
1455                my $t_name = validate_input($4);
1456                if ($alternate) {
1457                        print "<tr class=\"dark\">\n";
1458                } else {
1459                        print "<tr class=\"light\">\n";
1460                }
1461                $alternate ^= 1;
1462                print "<td style=\"font-family:monospace\">" . mode_str($t_mode) . "</td>\n";
1463                if ($t_type eq "blob") {
1464                        print "<td class=\"list\">" .
1465                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1466                              "</td>\n" .
1467                              "<td class=\"link\">" .
1468                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1469                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash_base;f=$base$t_name")}, "history") .
1470                              "</td>\n";
1471                } elsif ($t_type eq "tree") {
1472                        print "<td class=\"list\">" .
1473                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1474                              "</td>\n" .
1475                              "<td class=\"link\">" .
1476                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1477                              "</td>\n";
1478                }
1479                print "</tr>\n";
1480        }
1481        print "</table>\n" .
1482              "</div>";
1483        git_footer_html();
1484}
1485
1486sub git_rss {
1487        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1488        open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
1489        my (@revlist) = map { chomp; $_ } <$fd>;
1490        close $fd or die_error(undef, "Reading rev-list failed.");
1491        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1492        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1493              "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1494        print "<channel>\n";
1495        print "<title>$project</title>\n".
1496              "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1497              "<description>$project log</description>\n".
1498              "<language>en</language>\n";
1499
1500        for (my $i = 0; $i <= $#revlist; $i++) {
1501                my $commit = $revlist[$i];
1502                my %co = git_read_commit($commit);
1503                # we read 150, we always show 30 and the ones more recent than 48 hours
1504                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1505                        last;
1506                }
1507                my %cd = date_str($co{'committer_epoch'});
1508                open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
1509                my @difftree = map { chomp; $_ } <$fd>;
1510                close $fd or next;
1511                print "<item>\n" .
1512                      "<title>" .
1513                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1514                      "</title>\n" .
1515                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
1516                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1517                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1518                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1519                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
1520                      "<content:encoded>" .
1521                      "<![CDATA[\n";
1522                my $comment = $co{'comment'};
1523                foreach my $line (@$comment) {
1524                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
1525                        print "$line<br/>\n";
1526                }
1527                print "<br/>\n";
1528                foreach my $line (@difftree) {
1529                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1530                                next;
1531                        }
1532                        my $file = validate_input(unquote($7));
1533                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
1534                        print "$file<br/>\n";
1535                }
1536                print "]]>\n" .
1537                      "</content:encoded>\n" .
1538                      "</item>\n";
1539        }
1540        print "</channel></rss>";
1541}
1542
1543sub git_opml {
1544        my @list = git_read_projects();
1545
1546        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1547        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1548              "<opml version=\"1.0\">\n".
1549              "<head>".
1550              "  <title>Git OPML Export</title>\n".
1551              "</head>\n".
1552              "<body>\n".
1553              "<outline text=\"git RSS feeds\">\n";
1554
1555        foreach my $pr (@list) {
1556                my %proj = %$pr;
1557                my $head = git_read_hash("$proj{'path'}/HEAD");
1558                if (!defined $head) {
1559                        next;
1560                }
1561                $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1562                my %co = git_read_commit($head);
1563                if (!%co) {
1564                        next;
1565                }
1566
1567                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1568                my $rss =  "$my_url?p=$proj{'path'};a=rss";
1569                my $html =  "$my_url?p=$proj{'path'};a=summary";
1570                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1571        }
1572        print "</outline>\n".
1573              "</body>\n".
1574              "</opml>\n";
1575}
1576
1577sub git_log {
1578        my $head = git_read_hash("$project/HEAD");
1579        if (!defined $hash) {
1580                $hash = $head;
1581        }
1582        if (!defined $page) {
1583                $page = 0;
1584        }
1585        my $refs = read_info_ref();
1586        git_header_html();
1587        print "<div class=\"page_nav\">\n";
1588        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1589              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1590              " | log" .
1591              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1592              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
1593              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
1594
1595        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1596        open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
1597        my (@revlist) = map { chomp; $_ } <$fd>;
1598        close $fd;
1599
1600        if ($hash ne $head || $page) {
1601                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
1602        } else {
1603                print "HEAD";
1604        }
1605        if ($page > 0) {
1606                print " &sdot; " .
1607                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
1608        } else {
1609                print " &sdot; prev";
1610        }
1611        if ($#revlist >= (100 * ($page+1)-1)) {
1612                print " &sdot; " .
1613                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
1614        } else {
1615                print " &sdot; next";
1616        }
1617        print "<br/>\n" .
1618              "</div>\n";
1619        if (!@revlist) {
1620                print "<div>\n" .
1621                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1622                      "</div>\n";
1623                my %co = git_read_commit($hash);
1624                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1625        }
1626        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1627                my $commit = $revlist[$i];
1628                my $ref = "";
1629                if (defined $refs->{$commit}) {
1630                        $ref = " <span class=\"tag\">$refs->{$commit}</span>";
1631                }
1632                my %co = git_read_commit($commit);
1633                next if !%co;
1634                my %ad = date_str($co{'author_epoch'});
1635                print "<div>\n" .
1636                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1637                      "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1638                print "</div>\n";
1639                print "<div class=\"title_text\">\n" .
1640                      "<div class=\"log_link\">\n" .
1641                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1642                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1643                      "<br/>\n" .
1644                      "</div>\n" .
1645                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1646                      "</div>\n" .
1647                      "<div class=\"log_body\">\n";
1648                my $comment = $co{'comment'};
1649                my $empty = 0;
1650                foreach my $line (@$comment) {
1651                        if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1652                                next;
1653                        }
1654                        if ($line eq "") {
1655                                if ($empty) {
1656                                        next;
1657                                }
1658                                $empty = 1;
1659                        } else {
1660                                $empty = 0;
1661                        }
1662                        print format_log_line_html($line) . "<br/>\n";
1663                }
1664                if (!$empty) {
1665                        print "<br/>\n";
1666                }
1667                print "</div>\n";
1668        }
1669        git_footer_html();
1670}
1671
1672sub git_commit {
1673        my %co = git_read_commit($hash);
1674        if (!%co) {
1675                die_error(undef, "Unknown commit object.");
1676        }
1677        my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1678        my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1679
1680        my @difftree;
1681        my $root = "";
1682        my $parent = $co{'parent'};
1683        if (!defined $parent) {
1684                $root = " --root";
1685                $parent = "";
1686        }
1687        open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
1688        @difftree = map { chomp; $_ } <$fd>;
1689        close $fd or die_error(undef, "Reading diff-tree failed.");
1690
1691        # non-textual hash id's can be cached
1692        my $expires;
1693        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1694                $expires = "+1d";
1695        }
1696        git_header_html(undef, $expires);
1697        print "<div class=\"page_nav\">\n" .
1698              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1699              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1700              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
1701              " | commit";
1702        if (defined $co{'parent'}) {
1703                print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
1704        }
1705        print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
1706              "<br/><br/></div>\n";
1707        if (defined $co{'parent'}) {
1708                print "<div>\n" .
1709                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1710                      "</div>\n";
1711        } else {
1712                print "<div>\n" .
1713                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1714                      "</div>\n";
1715        }
1716        print "<div class=\"title_text\">\n" .
1717              "<table cellspacing=\"0\">\n";
1718        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
1719              "<tr>" .
1720              "<td></td><td> $ad{'rfc2822'}";
1721        if ($ad{'hour_local'} < 6) {
1722                printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1723        } else {
1724                printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1725        }
1726        print "</td>" .
1727              "</tr>\n";
1728        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
1729        print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
1730        print "<tr><td>commit</td><td style=\"font-family:monospace\">$co{'id'}</td></tr>\n";
1731        print "<tr>" .
1732              "<td>tree</td>" .
1733              "<td style=\"font-family:monospace\">" .
1734              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
1735              "</td>" .
1736              "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
1737              "</td>" .
1738              "</tr>\n";
1739        my $parents  = $co{'parents'};
1740        foreach my $par (@$parents) {
1741                print "<tr>" .
1742                      "<td>parent</td>" .
1743                      "<td style=\"font-family:monospace\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
1744                      "<td class=\"link\">" .
1745                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
1746                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
1747                      "</td>" .
1748                      "</tr>\n";
1749        }
1750        print "</table>". 
1751              "</div>\n";
1752        print "<div class=\"page_body\">\n";
1753        my $comment = $co{'comment'};
1754        my $empty = 0;
1755        my $signed = 0;
1756        foreach my $line (@$comment) {
1757                # print only one empty line
1758                if ($line eq "") {
1759                        if ($empty || $signed) {
1760                                next;
1761                        }
1762                        $empty = 1;
1763                } else {
1764                        $empty = 0;
1765                }
1766                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1767                        $signed = 1;
1768                        print "<span style=\"color: #888888\">" . esc_html($line) . "</span><br/>\n";
1769                } else {
1770                        $signed = 0;
1771                        print format_log_line_html($line) . "<br/>\n";
1772                }
1773        }
1774        print "</div>\n";
1775        print "<div class=\"list_head\">\n";
1776        if ($#difftree > 10) {
1777                print(($#difftree + 1) . " files changed:\n");
1778        }
1779        print "</div>\n";
1780        print "<table cellspacing=\"0\">\n";
1781        my $alternate = 0;
1782        foreach my $line (@difftree) {
1783                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1784                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1785                if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1786                        next;
1787                }
1788                my $from_mode = $1;
1789                my $to_mode = $2;
1790                my $from_id = $3;
1791                my $to_id = $4;
1792                my $status = $5;
1793                my $similarity = $6;
1794                my $file = validate_input(unquote($7));
1795                if ($alternate) {
1796                        print "<tr class=\"dark\">\n";
1797                } else {
1798                        print "<tr class=\"light\">\n";
1799                }
1800                $alternate ^= 1;
1801                if ($status eq "A") {
1802                        my $mode_chng = "";
1803                        if (S_ISREG(oct $to_mode)) {
1804                                $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1805                        }
1806                        print "<td>" .
1807                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1808                              "<td><span style=\"color: #008000;\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1809                              "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
1810                } elsif ($status eq "D") {
1811                        print "<td>" .
1812                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
1813                              "<td><span style=\"color: #c00000;\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1814                              "<td class=\"link\">" .
1815                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
1816                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") .
1817                              "</td>\n"
1818                } elsif ($status eq "M" || $status eq "T") {
1819                        my $mode_chnge = "";
1820                        if ($from_mode != $to_mode) {
1821                                $mode_chnge = " <span style=\"color: #777777;\">[changed";
1822                                if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1823                                        $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1824                                }
1825                                if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1826                                        if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1827                                                $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1828                                        } elsif (S_ISREG($to_mode)) {
1829                                                $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1830                                        }
1831                                }
1832                                $mode_chnge .= "]</span>\n";
1833                        }
1834                        print "<td>";
1835                        if ($to_id ne $from_id) {
1836                                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));
1837                        } else {
1838                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
1839                        }
1840                        print "</td>\n" .
1841                              "<td>$mode_chnge</td>\n" .
1842                              "<td class=\"link\">";
1843                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
1844                        if ($to_id ne $from_id) {
1845                                print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
1846                        }
1847                        print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$hash;f=$file")}, "history") . "\n";
1848                        print "</td>\n";
1849                } elsif ($status eq "R") {
1850                        my ($from_file, $to_file) = split "\t", $file;
1851                        my $mode_chng = "";
1852                        if ($from_mode != $to_mode) {
1853                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1854                        }
1855                        print "<td>" .
1856                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
1857                              "<td><span style=\"color: #777777;\">[moved from " .
1858                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
1859                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1860                              "<td class=\"link\">" .
1861                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
1862                        if ($to_id ne $from_id) {
1863                                print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
1864                        }
1865                        print "</td>\n";
1866                }
1867                print "</tr>\n";
1868        }
1869        print "</table>\n";
1870        git_footer_html();
1871}
1872
1873sub git_blobdiff {
1874        mkdir($git_temp, 0700);
1875        git_header_html();
1876        if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1877                print "<div class=\"page_nav\">\n" .
1878                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1879                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
1880                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
1881                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
1882                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
1883                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
1884                      "<br/>\n";
1885                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
1886                      "</div>\n";
1887                print "<div>\n" .
1888                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1889                      "</div>\n";
1890        } else {
1891                print "<div class=\"page_nav\">\n" .
1892                      "<br/><br/></div>\n" .
1893                      "<div class=\"title\">$hash vs $hash_parent</div>\n";
1894        }
1895        if (defined $file_name) {
1896                print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b></div>\n";
1897        }
1898        print "<div class=\"page_body\">\n" .
1899              "<div class=\"diff_info\">blob:" .
1900              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
1901              " -> blob:" .
1902              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
1903              "</div>\n";
1904        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1905        print "</div>";
1906        git_footer_html();
1907}
1908
1909sub git_blobdiff_plain {
1910        mkdir($git_temp, 0700);
1911        print $cgi->header(-type => "text/plain", -charset => 'utf-8');
1912        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
1913}
1914
1915sub git_commitdiff {
1916        mkdir($git_temp, 0700);
1917        my %co = git_read_commit($hash);
1918        if (!%co) {
1919                die_error(undef, "Unknown commit object.");
1920        }
1921        if (!defined $hash_parent) {
1922                $hash_parent = $co{'parent'};
1923        }
1924        open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
1925        my (@difftree) = map { chomp; $_ } <$fd>;
1926        close $fd or die_error(undef, "Reading diff-tree failed.");
1927
1928        # non-textual hash id's can be cached
1929        my $expires;
1930        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1931                $expires = "+1d";
1932        }
1933        git_header_html(undef, $expires);
1934        print "<div class=\"page_nav\">\n" .
1935              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
1936              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
1937              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
1938              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
1939              " | commitdiff" .
1940              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
1941        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
1942              "</div>\n";
1943        print "<div>\n" .
1944              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
1945              "</div>\n";
1946        print "<div class=\"page_body\">\n";
1947        my $comment = $co{'comment'};
1948        my $empty = 0;
1949        my $signed = 0;
1950        my @log = @$comment;
1951        # remove first and empty lines after that
1952        shift @log;
1953        while (defined $log[0] && $log[0] eq "") {
1954                shift @log;
1955        }
1956        foreach my $line (@log) {
1957                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1958                        next;
1959                }
1960                if ($line eq "") {
1961                        if ($empty) {
1962                                next;
1963                        }
1964                        $empty = 1;
1965                } else {
1966                        $empty = 0;
1967                }
1968                print format_log_line_html($line) . "<br/>\n";
1969        }
1970        print "<br/>\n";
1971        foreach my $line (@difftree) {
1972                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1973                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1974                $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
1975                my $from_mode = $1;
1976                my $to_mode = $2;
1977                my $from_id = $3;
1978                my $to_id = $4;
1979                my $status = $5;
1980                my $file = validate_input(unquote($6));
1981                if ($status eq "A") {
1982                        print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
1983                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
1984                              "</div>\n";
1985                        git_diff_print(undef, "/dev/null", $to_id, "b/$file");
1986                } elsif ($status eq "D") {
1987                        print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
1988                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
1989                              "</div>\n";
1990                        git_diff_print($from_id, "a/$file", undef, "/dev/null");
1991                } elsif ($status eq "M") {
1992                        if ($from_id ne $to_id) {
1993                                print "<div class=\"diff_info\">" .
1994                                      file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
1995                                      " -> " .
1996                                      file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
1997                                print "</div>\n";
1998                                git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
1999                        }
2000                }
2001        }
2002        print "<br/>\n" .
2003              "</div>";
2004        git_footer_html();
2005}
2006
2007sub git_commitdiff_plain {
2008        mkdir($git_temp, 0700);
2009        open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
2010        my (@difftree) = map { chomp; $_ } <$fd>;
2011        close $fd or die_error(undef, "Reading diff-tree failed.");
2012
2013        # try to figure out the next tag after this commit
2014        my $tagname;
2015        my $refs = read_info_ref();
2016        open $fd, "-|", "$gitbin/git-rev-list HEAD";
2017        chomp (my (@commits) = <$fd>);
2018        close $fd;
2019        foreach my $commit (@commits) {
2020                if (defined $refs->{$commit}) {
2021                        $tagname = $refs->{$commit}
2022                }
2023                if ($commit eq $hash) {
2024                        last;
2025                }
2026        }
2027
2028        print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2029        my %co = git_read_commit($hash);
2030        my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2031        my $comment = $co{'comment'};
2032        print "From: $co{'author'}\n" .
2033              "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2034              "Subject: $co{'title'}\n";
2035        if (defined $tagname) {
2036              print "X-Git-Tag: $tagname\n";
2037        }
2038        print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2039              "\n";
2040
2041        foreach my $line (@$comment) {;
2042                print "  $line\n";
2043        }
2044        print "---\n\n";
2045
2046        foreach my $line (@difftree) {
2047                $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2048                my $from_id = $3;
2049                my $to_id = $4;
2050                my $status = $5;
2051                my $file = $6;
2052                if ($status eq "A") {
2053                        git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2054                } elsif ($status eq "D") {
2055                        git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2056                } elsif ($status eq "M") {
2057                        git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2058                }
2059        }
2060}
2061
2062sub git_history {
2063        if (!defined $hash) {
2064                $hash = git_read_hash("$project/HEAD");
2065        }
2066        my %co = git_read_commit($hash);
2067        if (!%co) {
2068                die_error(undef, "Unknown commit object.");
2069        }
2070        my $refs = read_info_ref();
2071        git_header_html();
2072        print "<div class=\"page_nav\">\n" .
2073              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2074              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2075              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
2076              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2077              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2078              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2079              "<br/><br/>\n" .
2080              "</div>\n";
2081        print "<div>\n" .
2082              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2083              "</div>\n";
2084        print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
2085
2086        open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin \'$file_name\'";
2087        my $commit;
2088        print "<table cellspacing=\"0\">\n";
2089        my $alternate = 0;
2090        while (my $line = <$fd>) {
2091                if ($line =~ m/^([0-9a-fA-F]{40})/){
2092                        $commit = $1;
2093                        next;
2094                }
2095                if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
2096                        my %co = git_read_commit($commit);
2097                        if (!%co) {
2098                                next;
2099                        }
2100                        my $ref = "";
2101                        if (defined $refs->{$commit}) {
2102                                $ref = " <span class=\"tag\">$refs->{$commit}</span>";
2103                        }
2104                        if ($alternate) {
2105                                print "<tr class=\"dark\">\n";
2106                        } else {
2107                                print "<tr class=\"light\">\n";
2108                        }
2109                        $alternate ^= 1;
2110                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2111                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2112                              "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2113                              esc_html(chop_str($co{'title'}, 50)) . "</b>") . "$ref</td>\n" .
2114                              "<td class=\"link\">" .
2115                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2116                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2117                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2118                        my $blob = git_get_hash_by_path($hash, $file_name);
2119                        my $blob_parent = git_get_hash_by_path($commit, $file_name);
2120                        if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2121                                print " | " .
2122                                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2123                                "diff to current");
2124                        }
2125                        print "</td>\n" .
2126                              "</tr>\n";
2127                        undef $commit;
2128                }
2129        }
2130        print "</table>\n";
2131        close $fd;
2132        git_footer_html();
2133}
2134
2135sub git_search {
2136        if (!defined $searchtext) {
2137                die_error("", "Text field empty.");
2138        }
2139        if (!defined $hash) {
2140                $hash = git_read_hash("$project/HEAD");
2141        }
2142        my %co = git_read_commit($hash);
2143        if (!%co) {
2144                die_error(undef, "Unknown commit object.");
2145        }
2146        # pickaxe may take all resources of your box and run for several minutes
2147        # with every query - so decide by yourself how public you make this feature :)
2148        my $commit_search = 1;
2149        my $author_search = 0;
2150        my $committer_search = 0;
2151        my $pickaxe_search = 0;
2152        if ($searchtext =~ s/^author\\://i) {
2153                $author_search = 1;
2154        } elsif ($searchtext =~ s/^committer\\://i) {
2155                $committer_search = 1;
2156        } elsif ($searchtext =~ s/^pickaxe\\://i) {
2157                $commit_search = 0;
2158                $pickaxe_search = 1;
2159        }
2160        git_header_html();
2161        print "<div class=\"page_nav\">\n" .
2162              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
2163              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
2164              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2165              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2166              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2167              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2168              "<br/><br/>\n" .
2169              "</div>\n";
2170
2171        print "<div>\n" .
2172              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2173              "</div>\n";
2174        print "<table cellspacing=\"0\">\n";
2175        my $alternate = 0;
2176        if ($commit_search) {
2177                $/ = "\0";
2178                open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
2179                while (my $commit_text = <$fd>) {
2180                        if (!grep m/$searchtext/i, $commit_text) {
2181                                next;
2182                        }
2183                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2184                                next;
2185                        }
2186                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2187                                next;
2188                        }
2189                        my @commit_lines = split "\n", $commit_text;
2190                        my %co = git_read_commit(undef, \@commit_lines);
2191                        if (!%co) {
2192                                next;
2193                        }
2194                        if ($alternate) {
2195                                print "<tr class=\"dark\">\n";
2196                        } else {
2197                                print "<tr class=\"light\">\n";
2198                        }
2199                        $alternate ^= 1;
2200                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2201                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2202                              "<td>" .
2203                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2204                        my $comment = $co{'comment'};
2205                        foreach my $line (@$comment) {
2206                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2207                                        my $lead = esc_html($1) || "";
2208                                        $lead = chop_str($lead, 30, 10);
2209                                        my $match = esc_html($2) || "";
2210                                        my $trail = esc_html($3) || "";
2211                                        $trail = chop_str($trail, 30, 10);
2212                                        my $text = "$lead<span style=\"color:#e00000\">$match</span>$trail";
2213                                        print chop_str($text, 80, 5) . "<br/>\n";
2214                                }
2215                        }
2216                        print "</td>\n" .
2217                              "<td class=\"link\">" .
2218                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2219                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2220                        print "</td>\n" .
2221                              "</tr>\n";
2222                }
2223                close $fd;
2224        }
2225
2226        if ($pickaxe_search) {
2227                $/ = "\n";
2228                open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S\'$searchtext\'";
2229                undef %co;
2230                my @files;
2231                while (my $line = <$fd>) {
2232                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2233                                my %set;
2234                                $set{'file'} = $6;
2235                                $set{'from_id'} = $3;
2236                                $set{'to_id'} = $4;
2237                                $set{'id'} = $set{'to_id'};
2238                                if ($set{'id'} =~ m/0{40}/) {
2239                                        $set{'id'} = $set{'from_id'};
2240                                }
2241                                if ($set{'id'} =~ m/0{40}/) {
2242                                        next;
2243                                }
2244                                push @files, \%set;
2245                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2246                                if (%co) {
2247                                        if ($alternate) {
2248                                                print "<tr class=\"dark\">\n";
2249                                        } else {
2250                                                print "<tr class=\"light\">\n";
2251                                        }
2252                                        $alternate ^= 1;
2253                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2254                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2255                                              "<td>" .
2256                                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2257                                              esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2258                                        while (my $setref = shift @files) {
2259                                                my %set = %$setref;
2260                                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2261                                                      "<span style=\"color:#e00000\">" . esc_html($set{'file'}) . "</span>") .
2262                                                      "<br/>\n";
2263                                        }
2264                                        print "</td>\n" .
2265                                              "<td class=\"link\">" .
2266                                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2267                                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2268                                        print "</td>\n" .
2269                                              "</tr>\n";
2270                                }
2271                                %co = git_read_commit($1);
2272                        }
2273                }
2274                close $fd;
2275        }
2276        print "</table>\n";
2277        git_footer_html();
2278}
2279
2280sub git_shortlog {
2281        my $head = git_read_hash("$project/HEAD");
2282        if (!defined $hash) {
2283                $hash = $head;
2284        }
2285        if (!defined $page) {
2286                $page = 0;
2287        }
2288        my $refs = read_info_ref();
2289        git_header_html();
2290        print "<div class=\"page_nav\">\n" .
2291              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
2292              " | shortlog" .
2293              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
2294              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
2295              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
2296              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
2297
2298        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2299        open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
2300        my (@revlist) = map { chomp; $_ } <$fd>;
2301        close $fd;
2302
2303        if ($hash ne $head || $page) {
2304                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
2305        } else {
2306                print "HEAD";
2307        }
2308        if ($page > 0) {
2309                print " &sdot; " .
2310                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
2311        } else {
2312                print " &sdot; prev";
2313        }
2314        if ($#revlist >= (100 * ($page+1)-1)) {
2315                print " &sdot; " .
2316                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
2317        } else {
2318                print " &sdot; next";
2319        }
2320        print "<br/>\n" .
2321              "</div>\n";
2322        print "<div>\n" .
2323              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2324              "</div>\n";
2325        print "<table cellspacing=\"0\">\n";
2326        my $alternate = 0;
2327        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2328                my $commit = $revlist[$i];
2329                my %co = git_read_commit($commit);
2330                my %ad = date_str($co{'author_epoch'});
2331                if ($alternate) {
2332                        print "<tr class=\"dark\">\n";
2333                } else {
2334                        print "<tr class=\"light\">\n";
2335                }
2336                $alternate ^= 1;
2337                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2338                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2339                      "<td>";
2340                if (length($co{'title_short'}) < length($co{'title'})) {
2341                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2342                              "<b>" . esc_html($co{'title_short'}) . "</b>");
2343                } else {
2344                        print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2345                              "<b>" . esc_html($co{'title_short'}) . "</b>");
2346                }
2347                if (defined $refs->{$commit}) {
2348                        print " <span class=\"tag\">$refs->{$commit}</span>";
2349                }
2350                print "</td>\n" .
2351                      "<td class=\"link\">" .
2352                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2353                      " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2354                      "</td>\n" .
2355                      "</tr>";
2356        }
2357        if ($#revlist >= (100 * ($page+1)-1)) {
2358                print "<tr>\n" .
2359                      "<td>" .
2360                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2361                      "</td>\n" .
2362                      "</tr>\n";
2363        }
2364        print "</table\n>";
2365        git_footer_html();
2366}