gitweb/gitweb.perl

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