gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # html text to include at home page
  45 our $home_text = "++GITWEB_HOMETEXT++";
  46
  47 # URI of default stylesheet
  48 our $stylesheet = "++GITWEB_CSS++";
  49 # URI of GIT logo
  50 our $logo = "++GITWEB_LOGO++";
  51
  52 # source of projects list
  53 our $projects_list = "++GITWEB_LIST++";
  54
  55 # list of git base URLs used for URL to where fetch project from,
  56 # i.e. full URL is "$git_base_url/$project"
  57 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  58
  59 # default blob_plain mimetype and default charset for text/plain blob
  60 our $default_blob_plain_mimetype = 'text/plain';
  61 our $default_text_plain_charset  = undef;
  62
  63 # file to use for guessing MIME types before trying /etc/mime.types
  64 # (relative to the current git repository)
  65 our $mimetypes_file = undef;
  66
  67 # You define site-wide feature defaults here; override them with
  68 # $GITWEB_CONFIG as necessary.
  69 our %feature = (
  70         # feature => {
  71         #       'sub' => feature-sub (subroutine),
  72         #       'override' => allow-override (boolean),
  73         #       'default' => [ default options...] (array reference)}
  74         #
  75         # if feature is overridable (it means that allow-override has true value,
  76         # then feature-sub will be called with default options as parameters;
  77         # return value of feature-sub indicates if to enable specified feature
  78         #
  79         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  80
  81         'blame' => {
  82                 'sub' => \&feature_blame,
  83                 'override' => 0,
  84                 'default' => [0]},
  85
  86         'snapshot' => {
  87                 'sub' => \&feature_snapshot,
  88                 'override' => 0,
  89                 #         => [content-encoding, suffix, program]
  90                 'default' => ['x-gzip', 'gz', 'gzip']},
  91 );
  92
  93 sub gitweb_check_feature {
  94         my ($name) = @_;
  95         return undef unless exists $feature{$name};
  96         my ($sub, $override, @defaults) = (
  97                 $feature{$name}{'sub'},
  98                 $feature{$name}{'override'},
  99                 @{$feature{$name}{'default'}});
 100         if (!$override) { return @defaults; }
 101         return $sub->(@defaults);
 102 }
 103
 104 # To enable system wide have in $GITWEB_CONFIG
 105 # $feature{'blame'}{'default'} = [1];
 106 # To have project specific config enable override in $GITWEB_CONFIG
 107 # $feature{'blame'}{'override'} = 1;
 108 # and in project config gitweb.blame = 0|1;
 109
 110 sub feature_blame {
 111         my ($val) = git_get_project_config('blame', '--bool');
 112
 113         if ($val eq 'true') {
 114                 return 1;
 115         } elsif ($val eq 'false') {
 116                 return 0;
 117         }
 118
 119         return $_[0];
 120 }
 121
 122 # To disable system wide have in $GITWEB_CONFIG
 123 # $feature{'snapshot'}{'default'} = [undef];
 124 # To have project specific config enable override in $GITWEB_CONFIG
 125 # $feature{'blame'}{'override'} = 1;
 126 # and in project config  gitweb.snapshot = none|gzip|bzip2
 127
 128 sub feature_snapshot {
 129         my ($ctype, $suffix, $command) = @_;
 130
 131         my ($val) = git_get_project_config('snapshot');
 132
 133         if ($val eq 'gzip') {
 134                 return ('x-gzip', 'gz', 'gzip');
 135         } elsif ($val eq 'bzip2') {
 136                 return ('x-bzip2', 'bz2', 'bzip2');
 137         } elsif ($val eq 'none') {
 138                 return ();
 139         }
 140
 141         return ($ctype, $suffix, $command);
 142 }
 143
 144 # rename detection options for git-diff and git-diff-tree
 145 # - default is '-M', with the cost proportional to
 146 #   (number of removed files) * (number of new files).
 147 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 148 #   (number of changed files + number of removed files) * (number of new files)
 149 # - even more costly is '-C', '--find-copies-harder' with cost
 150 #   (number of files in the original tree) * (number of new files)
 151 # - one might want to include '-B' option, e.g. '-B', '-M'
 152 our @diff_opts = ('-M'); # taken from git_commit
 153
 154 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 155 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 156
 157 # version of the core git binary
 158 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 159
 160 # path to the current git repository
 161 our $git_dir;
 162
 163 $projects_list ||= $projectroot;
 164
 165 # ======================================================================
 166 # input validation and dispatch
 167 our $action = $cgi->param('a');
 168 if (defined $action) {
 169         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 170                 die_error(undef, "Invalid action parameter");
 171         }
 172 }
 173
 174 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 175 if (defined $project) {
 176         $project =~ s|^/||;
 177         $project =~ s|/$||;
 178         $project = undef unless $project;
 179 }
 180 if (defined $project) {
 181         if (!validate_input($project)) {
 182                 die_error(undef, "Invalid project parameter");
 183         }
 184         if (!(-d "$projectroot/$project")) {
 185                 die_error(undef, "No such directory");
 186         }
 187         if (!(-e "$projectroot/$project/HEAD")) {
 188                 die_error(undef, "No such project");
 189         }
 190         $git_dir = "$projectroot/$project";
 191 }
 192
 193 our $file_name = $cgi->param('f');
 194 if (defined $file_name) {
 195         if (!validate_input($file_name)) {
 196                 die_error(undef, "Invalid file parameter");
 197         }
 198 }
 199
 200 our $file_parent = $cgi->param('fp');
 201 if (defined $file_parent) {
 202         if (!validate_input($file_parent)) {
 203                 die_error(undef, "Invalid file parent parameter");
 204         }
 205 }
 206
 207 our $hash = $cgi->param('h');
 208 if (defined $hash) {
 209         if (!validate_input($hash)) {
 210                 die_error(undef, "Invalid hash parameter");
 211         }
 212 }
 213
 214 our $hash_parent = $cgi->param('hp');
 215 if (defined $hash_parent) {
 216         if (!validate_input($hash_parent)) {
 217                 die_error(undef, "Invalid hash parent parameter");
 218         }
 219 }
 220
 221 our $hash_base = $cgi->param('hb');
 222 if (defined $hash_base) {
 223         if (!validate_input($hash_base)) {
 224                 die_error(undef, "Invalid hash base parameter");
 225         }
 226 }
 227
 228 our $hash_parent_base = $cgi->param('hpb');
 229 if (defined $hash_parent_base) {
 230         if (!validate_input($hash_parent_base)) {
 231                 die_error(undef, "Invalid hash parent base parameter");
 232         }
 233 }
 234
 235 our $page = $cgi->param('pg');
 236 if (defined $page) {
 237         if ($page =~ m/[^0-9]$/) {
 238                 die_error(undef, "Invalid page parameter");
 239         }
 240 }
 241
 242 our $searchtext = $cgi->param('s');
 243 if (defined $searchtext) {
 244         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 245                 die_error(undef, "Invalid search parameter");
 246         }
 247         $searchtext = quotemeta $searchtext;
 248 }
 249
 250 # dispatch
 251 my %actions = (
 252         "blame" => \&git_blame2,
 253         "blobdiff" => \&git_blobdiff,
 254         "blobdiff_plain" => \&git_blobdiff_plain,
 255         "blob" => \&git_blob,
 256         "blob_plain" => \&git_blob_plain,
 257         "commitdiff" => \&git_commitdiff,
 258         "commitdiff_plain" => \&git_commitdiff_plain,
 259         "commit" => \&git_commit,
 260         "heads" => \&git_heads,
 261         "history" => \&git_history,
 262         "log" => \&git_log,
 263         "rss" => \&git_rss,
 264         "search" => \&git_search,
 265         "shortlog" => \&git_shortlog,
 266         "summary" => \&git_summary,
 267         "tag" => \&git_tag,
 268         "tags" => \&git_tags,
 269         "tree" => \&git_tree,
 270         "snapshot" => \&git_snapshot,
 271         # those below don't need $project
 272         "opml" => \&git_opml,
 273         "project_list" => \&git_project_list,
 274 );
 275
 276 if (defined $project) {
 277         $action ||= 'summary';
 278 } else {
 279         $action ||= 'project_list';
 280 }
 281 if (!defined($actions{$action})) {
 282         die_error(undef, "Unknown action");
 283 }
 284 $actions{$action}->();
 285 exit;
 286
 287 ## ======================================================================
 288 ## action links
 289
 290 sub href(%) {
 291         my %params = @_;
 292
 293         my @mapping = (
 294                 project => "p",
 295                 action => "a",
 296                 file_name => "f",
 297                 file_parent => "fp",
 298                 hash => "h",
 299                 hash_parent => "hp",
 300                 hash_base => "hb",
 301                 hash_parent_base => "hpb",
 302                 page => "pg",
 303                 searchtext => "s",
 304         );
 305         my %mapping = @mapping;
 306
 307         $params{"project"} ||= $project;
 308
 309         my @result = ();
 310         for (my $i = 0; $i < @mapping; $i += 2) {
 311                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 312                 if (defined $params{$name}) {
 313                         push @result, $symbol . "=" . esc_param($params{$name});
 314                 }
 315         }
 316         return "$my_uri?" . join(';', @result);
 317 }
 318
 319
 320 ## ======================================================================
 321 ## validation, quoting/unquoting and escaping
 322
 323 sub validate_input {
 324         my $input = shift;
 325
 326         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 327                 return $input;
 328         }
 329         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 330                 return undef;
 331         }
 332         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 333                 return undef;
 334         }
 335         return $input;
 336 }
 337
 338 # quote unsafe chars, but keep the slash, even when it's not
 339 # correct, but quoted slashes look too horrible in bookmarks
 340 sub esc_param {
 341         my $str = shift;
 342         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 343         $str =~ s/\+/%2B/g;
 344         $str =~ s/ /\+/g;
 345         return $str;
 346 }
 347
 348 # replace invalid utf8 character with SUBSTITUTION sequence
 349 sub esc_html {
 350         my $str = shift;
 351         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 352         $str = escapeHTML($str);
 353         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 354         return $str;
 355 }
 356
 357 # git may return quoted and escaped filenames
 358 sub unquote {
 359         my $str = shift;
 360         if ($str =~ m/^"(.*)"$/) {
 361                 $str = $1;
 362                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 363         }
 364         return $str;
 365 }
 366
 367 # escape tabs (convert tabs to spaces)
 368 sub untabify {
 369         my $line = shift;
 370
 371         while ((my $pos = index($line, "\t")) != -1) {
 372                 if (my $count = (8 - ($pos % 8))) {
 373                         my $spaces = ' ' x $count;
 374                         $line =~ s/\t/$spaces/;
 375                 }
 376         }
 377
 378         return $line;
 379 }
 380
 381 ## ----------------------------------------------------------------------
 382 ## HTML aware string manipulation
 383
 384 sub chop_str {
 385         my $str = shift;
 386         my $len = shift;
 387         my $add_len = shift || 10;
 388
 389         # allow only $len chars, but don't cut a word if it would fit in $add_len
 390         # if it doesn't fit, cut it if it's still longer than the dots we would add
 391         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 392         my $body = $1;
 393         my $tail = $2;
 394         if (length($tail) > 4) {
 395                 $tail = " ...";
 396                 $body =~ s/&[^;]*$//; # remove chopped character entities
 397         }
 398         return "$body$tail";
 399 }
 400
 401 ## ----------------------------------------------------------------------
 402 ## functions returning short strings
 403
 404 # CSS class for given age value (in seconds)
 405 sub age_class {
 406         my $age = shift;
 407
 408         if ($age < 60*60*2) {
 409                 return "age0";
 410         } elsif ($age < 60*60*24*2) {
 411                 return "age1";
 412         } else {
 413                 return "age2";
 414         }
 415 }
 416
 417 # convert age in seconds to "nn units ago" string
 418 sub age_string {
 419         my $age = shift;
 420         my $age_str;
 421
 422         if ($age > 60*60*24*365*2) {
 423                 $age_str = (int $age/60/60/24/365);
 424                 $age_str .= " years ago";
 425         } elsif ($age > 60*60*24*(365/12)*2) {
 426                 $age_str = int $age/60/60/24/(365/12);
 427                 $age_str .= " months ago";
 428         } elsif ($age > 60*60*24*7*2) {
 429                 $age_str = int $age/60/60/24/7;
 430                 $age_str .= " weeks ago";
 431         } elsif ($age > 60*60*24*2) {
 432                 $age_str = int $age/60/60/24;
 433                 $age_str .= " days ago";
 434         } elsif ($age > 60*60*2) {
 435                 $age_str = int $age/60/60;
 436                 $age_str .= " hours ago";
 437         } elsif ($age > 60*2) {
 438                 $age_str = int $age/60;
 439                 $age_str .= " min ago";
 440         } elsif ($age > 2) {
 441                 $age_str = int $age;
 442                 $age_str .= " sec ago";
 443         } else {
 444                 $age_str .= " right now";
 445         }
 446         return $age_str;
 447 }
 448
 449 # convert file mode in octal to symbolic file mode string
 450 sub mode_str {
 451         my $mode = oct shift;
 452
 453         if (S_ISDIR($mode & S_IFMT)) {
 454                 return 'drwxr-xr-x';
 455         } elsif (S_ISLNK($mode)) {
 456                 return 'lrwxrwxrwx';
 457         } elsif (S_ISREG($mode)) {
 458                 # git cares only about the executable bit
 459                 if ($mode & S_IXUSR) {
 460                         return '-rwxr-xr-x';
 461                 } else {
 462                         return '-rw-r--r--';
 463                 };
 464         } else {
 465                 return '----------';
 466         }
 467 }
 468
 469 # convert file mode in octal to file type string
 470 sub file_type {
 471         my $mode = shift;
 472
 473         if ($mode !~ m/^[0-7]+$/) {
 474                 return $mode;
 475         } else {
 476                 $mode = oct $mode;
 477         }
 478
 479         if (S_ISDIR($mode & S_IFMT)) {
 480                 return "directory";
 481         } elsif (S_ISLNK($mode)) {
 482                 return "symlink";
 483         } elsif (S_ISREG($mode)) {
 484                 return "file";
 485         } else {
 486                 return "unknown";
 487         }
 488 }
 489
 490 ## ----------------------------------------------------------------------
 491 ## functions returning short HTML fragments, or transforming HTML fragments
 492 ## which don't beling to other sections
 493
 494 # format line of commit message or tag comment
 495 sub format_log_line_html {
 496         my $line = shift;
 497
 498         $line = esc_html($line);
 499         $line =~ s/ /&nbsp;/g;
 500         if ($line =~ m/([0-9a-fA-F]{40})/) {
 501                 my $hash_text = $1;
 502                 if (git_get_type($hash_text) eq "commit") {
 503                         my $link =
 504                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 505                                         -class => "text"}, $hash_text);
 506                         $line =~ s/$hash_text/$link/;
 507                 }
 508         }
 509         return $line;
 510 }
 511
 512 # format marker of refs pointing to given object
 513 sub format_ref_marker {
 514         my ($refs, $id) = @_;
 515         my $markers = '';
 516
 517         if (defined $refs->{$id}) {
 518                 foreach my $ref (@{$refs->{$id}}) {
 519                         my ($type, $name) = qw();
 520                         # e.g. tags/v2.6.11 or heads/next
 521                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 522                                 $type = $1;
 523                                 $name = $2;
 524                         } else {
 525                                 $type = "ref";
 526                                 $name = $ref;
 527                         }
 528
 529                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 530                 }
 531         }
 532
 533         if ($markers) {
 534                 return ' <span class="refs">'. $markers . '</span>';
 535         } else {
 536                 return "";
 537         }
 538 }
 539
 540 # format, perhaps shortened and with markers, title line
 541 sub format_subject_html {
 542         my ($long, $short, $href, $extra) = @_;
 543         $extra = '' unless defined($extra);
 544
 545         if (length($short) < length($long)) {
 546                 return $cgi->a({-href => $href, -class => "list subject",
 547                                 -title => $long},
 548                        esc_html($short) . $extra);
 549         } else {
 550                 return $cgi->a({-href => $href, -class => "list subject"},
 551                        esc_html($long)  . $extra);
 552         }
 553 }
 554
 555 sub format_diff_line {
 556         my $line = shift;
 557         my $char = substr($line, 0, 1);
 558         my $diff_class = "";
 559
 560         chomp $line;
 561
 562         if ($char eq '+') {
 563                 $diff_class = " add";
 564         } elsif ($char eq "-") {
 565                 $diff_class = " rem";
 566         } elsif ($char eq "@") {
 567                 $diff_class = " chunk_header";
 568         } elsif ($char eq "\\") {
 569                 $diff_class = " incomplete";
 570         }
 571         $line = untabify($line);
 572         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 573 }
 574
 575 ## ----------------------------------------------------------------------
 576 ## git utility subroutines, invoking git commands
 577
 578 # returns path to the core git executable and the --git-dir parameter as list
 579 sub git_cmd {
 580         return $GIT, '--git-dir='.$git_dir;
 581 }
 582
 583 # returns path to the core git executable and the --git-dir parameter as string
 584 sub git_cmd_str {
 585         return join(' ', git_cmd());
 586 }
 587
 588 # get HEAD ref of given project as hash
 589 sub git_get_head_hash {
 590         my $project = shift;
 591         my $o_git_dir = $git_dir;
 592         my $retval = undef;
 593         $git_dir = "$projectroot/$project";
 594         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 595                 my $head = <$fd>;
 596                 close $fd;
 597                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 598                         $retval = $1;
 599                 }
 600         }
 601         if (defined $o_git_dir) {
 602                 $git_dir = $o_git_dir;
 603         }
 604         return $retval;
 605 }
 606
 607 # get type of given object
 608 sub git_get_type {
 609         my $hash = shift;
 610
 611         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 612         my $type = <$fd>;
 613         close $fd or return;
 614         chomp $type;
 615         return $type;
 616 }
 617
 618 sub git_get_project_config {
 619         my ($key, $type) = @_;
 620
 621         return unless ($key);
 622         $key =~ s/^gitweb\.//;
 623         return if ($key =~ m/\W/);
 624
 625         my @x = (git_cmd(), 'repo-config');
 626         if (defined $type) { push @x, $type; }
 627         push @x, "--get";
 628         push @x, "gitweb.$key";
 629         my $val = qx(@x);
 630         chomp $val;
 631         return ($val);
 632 }
 633
 634 # get hash of given path at given ref
 635 sub git_get_hash_by_path {
 636         my $base = shift;
 637         my $path = shift || return undef;
 638
 639         my $tree = $base;
 640
 641         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 642                 or die_error(undef, "Open git-ls-tree failed");
 643         my $line = <$fd>;
 644         close $fd or return undef;
 645
 646         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 647         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 648         return $3;
 649 }
 650
 651 ## ......................................................................
 652 ## git utility functions, directly accessing git repository
 653
 654 # assumes that PATH is not symref
 655 sub git_get_hash_by_ref {
 656         my $path = shift;
 657
 658         open my $fd, "$projectroot/$path" or return undef;
 659         my $head = <$fd>;
 660         close $fd;
 661         chomp $head;
 662         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 663                 return $head;
 664         }
 665 }
 666
 667 sub git_get_project_description {
 668         my $path = shift;
 669
 670         open my $fd, "$projectroot/$path/description" or return undef;
 671         my $descr = <$fd>;
 672         close $fd;
 673         chomp $descr;
 674         return $descr;
 675 }
 676
 677 sub git_get_project_url_list {
 678         my $path = shift;
 679
 680         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 681         my @git_project_url_list = map { chomp; $_ } <$fd>;
 682         close $fd;
 683
 684         return wantarray ? @git_project_url_list : \@git_project_url_list;
 685 }
 686
 687 sub git_get_projects_list {
 688         my @list;
 689
 690         if (-d $projects_list) {
 691                 # search in directory
 692                 my $dir = $projects_list;
 693                 opendir my ($dh), $dir or return undef;
 694                 while (my $dir = readdir($dh)) {
 695                         if (-e "$projectroot/$dir/HEAD") {
 696                                 my $pr = {
 697                                         path => $dir,
 698                                 };
 699                                 push @list, $pr
 700                         }
 701                 }
 702                 closedir($dh);
 703         } elsif (-f $projects_list) {
 704                 # read from file(url-encoded):
 705                 # 'git%2Fgit.git Linus+Torvalds'
 706                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 707                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 708                 open my ($fd), $projects_list or return undef;
 709                 while (my $line = <$fd>) {
 710                         chomp $line;
 711                         my ($path, $owner) = split ' ', $line;
 712                         $path = unescape($path);
 713                         $owner = unescape($owner);
 714                         if (!defined $path) {
 715                                 next;
 716                         }
 717                         if (-e "$projectroot/$path/HEAD") {
 718                                 my $pr = {
 719                                         path => $path,
 720                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 721                                 };
 722                                 push @list, $pr
 723                         }
 724                 }
 725                 close $fd;
 726         }
 727         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 728         return @list;
 729 }
 730
 731 sub git_get_project_owner {
 732         my $project = shift;
 733         my $owner;
 734
 735         return undef unless $project;
 736
 737         # read from file (url-encoded):
 738         # 'git%2Fgit.git Linus+Torvalds'
 739         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 740         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 741         if (-f $projects_list) {
 742                 open (my $fd , $projects_list);
 743                 while (my $line = <$fd>) {
 744                         chomp $line;
 745                         my ($pr, $ow) = split ' ', $line;
 746                         $pr = unescape($pr);
 747                         $ow = unescape($ow);
 748                         if ($pr eq $project) {
 749                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 750                                 last;
 751                         }
 752                 }
 753                 close $fd;
 754         }
 755         if (!defined $owner) {
 756                 $owner = get_file_owner("$projectroot/$project");
 757         }
 758
 759         return $owner;
 760 }
 761
 762 sub git_get_references {
 763         my $type = shift || "";
 764         my %refs;
 765         my $fd;
 766         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 767         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 768         if (-f "$projectroot/$project/info/refs") {
 769                 open $fd, "$projectroot/$project/info/refs"
 770                         or return;
 771         } else {
 772                 open $fd, "-|", git_cmd(), "ls-remote", "."
 773                         or return;
 774         }
 775
 776         while (my $line = <$fd>) {
 777                 chomp $line;
 778                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 779                         if (defined $refs{$1}) {
 780                                 push @{$refs{$1}}, $2;
 781                         } else {
 782                                 $refs{$1} = [ $2 ];
 783                         }
 784                 }
 785         }
 786         close $fd or return;
 787         return \%refs;
 788 }
 789
 790 sub git_get_rev_name_tags {
 791         my $hash = shift || return undef;
 792
 793         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 794                 or return;
 795         my $name_rev = <$fd>;
 796         close $fd;
 797
 798         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 799                 return $1;
 800         } else {
 801                 # catches also '$hash undefined' output
 802                 return undef;
 803         }
 804 }
 805
 806 ## ----------------------------------------------------------------------
 807 ## parse to hash functions
 808
 809 sub parse_date {
 810         my $epoch = shift;
 811         my $tz = shift || "-0000";
 812
 813         my %date;
 814         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 815         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 816         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 817         $date{'hour'} = $hour;
 818         $date{'minute'} = $min;
 819         $date{'mday'} = $mday;
 820         $date{'day'} = $days[$wday];
 821         $date{'month'} = $months[$mon];
 822         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 823                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 824         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 825                              $mday, $months[$mon], $hour ,$min;
 826
 827         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 828         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 829         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 830         $date{'hour_local'} = $hour;
 831         $date{'minute_local'} = $min;
 832         $date{'tz_local'} = $tz;
 833         return %date;
 834 }
 835
 836 sub parse_tag {
 837         my $tag_id = shift;
 838         my %tag;
 839         my @comment;
 840
 841         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 842         $tag{'id'} = $tag_id;
 843         while (my $line = <$fd>) {
 844                 chomp $line;
 845                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 846                         $tag{'object'} = $1;
 847                 } elsif ($line =~ m/^type (.+)$/) {
 848                         $tag{'type'} = $1;
 849                 } elsif ($line =~ m/^tag (.+)$/) {
 850                         $tag{'name'} = $1;
 851                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 852                         $tag{'author'} = $1;
 853                         $tag{'epoch'} = $2;
 854                         $tag{'tz'} = $3;
 855                 } elsif ($line =~ m/--BEGIN/) {
 856                         push @comment, $line;
 857                         last;
 858                 } elsif ($line eq "") {
 859                         last;
 860                 }
 861         }
 862         push @comment, <$fd>;
 863         $tag{'comment'} = \@comment;
 864         close $fd or return;
 865         if (!defined $tag{'name'}) {
 866                 return
 867         };
 868         return %tag
 869 }
 870
 871 sub parse_commit {
 872         my $commit_id = shift;
 873         my $commit_text = shift;
 874
 875         my @commit_lines;
 876         my %co;
 877
 878         if (defined $commit_text) {
 879                 @commit_lines = @$commit_text;
 880         } else {
 881                 $/ = "\0";
 882                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 883                         or return;
 884                 @commit_lines = split '\n', <$fd>;
 885                 close $fd or return;
 886                 $/ = "\n";
 887                 pop @commit_lines;
 888         }
 889         my $header = shift @commit_lines;
 890         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 891                 return;
 892         }
 893         ($co{'id'}, my @parents) = split ' ', $header;
 894         $co{'parents'} = \@parents;
 895         $co{'parent'} = $parents[0];
 896         while (my $line = shift @commit_lines) {
 897                 last if $line eq "\n";
 898                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 899                         $co{'tree'} = $1;
 900                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 901                         $co{'author'} = $1;
 902                         $co{'author_epoch'} = $2;
 903                         $co{'author_tz'} = $3;
 904                         if ($co{'author'} =~ m/^([^<]+) </) {
 905                                 $co{'author_name'} = $1;
 906                         } else {
 907                                 $co{'author_name'} = $co{'author'};
 908                         }
 909                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 910                         $co{'committer'} = $1;
 911                         $co{'committer_epoch'} = $2;
 912                         $co{'committer_tz'} = $3;
 913                         $co{'committer_name'} = $co{'committer'};
 914                         $co{'committer_name'} =~ s/ <.*//;
 915                 }
 916         }
 917         if (!defined $co{'tree'}) {
 918                 return;
 919         };
 920
 921         foreach my $title (@commit_lines) {
 922                 $title =~ s/^    //;
 923                 if ($title ne "") {
 924                         $co{'title'} = chop_str($title, 80, 5);
 925                         # remove leading stuff of merges to make the interesting part visible
 926                         if (length($title) > 50) {
 927                                 $title =~ s/^Automatic //;
 928                                 $title =~ s/^merge (of|with) /Merge ... /i;
 929                                 if (length($title) > 50) {
 930                                         $title =~ s/(http|rsync):\/\///;
 931                                 }
 932                                 if (length($title) > 50) {
 933                                         $title =~ s/(master|www|rsync)\.//;
 934                                 }
 935                                 if (length($title) > 50) {
 936                                         $title =~ s/kernel.org:?//;
 937                                 }
 938                                 if (length($title) > 50) {
 939                                         $title =~ s/\/pub\/scm//;
 940                                 }
 941                         }
 942                         $co{'title_short'} = chop_str($title, 50, 5);
 943                         last;
 944                 }
 945         }
 946         # remove added spaces
 947         foreach my $line (@commit_lines) {
 948                 $line =~ s/^    //;
 949         }
 950         $co{'comment'} = \@commit_lines;
 951
 952         my $age = time - $co{'committer_epoch'};
 953         $co{'age'} = $age;
 954         $co{'age_string'} = age_string($age);
 955         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 956         if ($age > 60*60*24*7*2) {
 957                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 958                 $co{'age_string_age'} = $co{'age_string'};
 959         } else {
 960                 $co{'age_string_date'} = $co{'age_string'};
 961                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 962         }
 963         return %co;
 964 }
 965
 966 # parse ref from ref_file, given by ref_id, with given type
 967 sub parse_ref {
 968         my $ref_file = shift;
 969         my $ref_id = shift;
 970         my $type = shift || git_get_type($ref_id);
 971         my %ref_item;
 972
 973         $ref_item{'type'} = $type;
 974         $ref_item{'id'} = $ref_id;
 975         $ref_item{'epoch'} = 0;
 976         $ref_item{'age'} = "unknown";
 977         if ($type eq "tag") {
 978                 my %tag = parse_tag($ref_id);
 979                 $ref_item{'comment'} = $tag{'comment'};
 980                 if ($tag{'type'} eq "commit") {
 981                         my %co = parse_commit($tag{'object'});
 982                         $ref_item{'epoch'} = $co{'committer_epoch'};
 983                         $ref_item{'age'} = $co{'age_string'};
 984                 } elsif (defined($tag{'epoch'})) {
 985                         my $age = time - $tag{'epoch'};
 986                         $ref_item{'epoch'} = $tag{'epoch'};
 987                         $ref_item{'age'} = age_string($age);
 988                 }
 989                 $ref_item{'reftype'} = $tag{'type'};
 990                 $ref_item{'name'} = $tag{'name'};
 991                 $ref_item{'refid'} = $tag{'object'};
 992         } elsif ($type eq "commit"){
 993                 my %co = parse_commit($ref_id);
 994                 $ref_item{'reftype'} = "commit";
 995                 $ref_item{'name'} = $ref_file;
 996                 $ref_item{'title'} = $co{'title'};
 997                 $ref_item{'refid'} = $ref_id;
 998                 $ref_item{'epoch'} = $co{'committer_epoch'};
 999                 $ref_item{'age'} = $co{'age_string'};
1000         } else {
1001                 $ref_item{'reftype'} = $type;
1002                 $ref_item{'name'} = $ref_file;
1003                 $ref_item{'refid'} = $ref_id;
1004         }
1005
1006         return %ref_item;
1007 }
1008
1009 # parse line of git-diff-tree "raw" output
1010 sub parse_difftree_raw_line {
1011         my $line = shift;
1012         my %res;
1013
1014         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1015         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1016         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1017                 $res{'from_mode'} = $1;
1018                 $res{'to_mode'} = $2;
1019                 $res{'from_id'} = $3;
1020                 $res{'to_id'} = $4;
1021                 $res{'status'} = $5;
1022                 $res{'similarity'} = $6;
1023                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1024                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1025                 } else {
1026                         $res{'file'} = unquote($7);
1027                 }
1028         }
1029         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1030         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1031                 $res{'commit'} = $1;
1032         }
1033
1034         return wantarray ? %res : \%res;
1035 }
1036
1037 # parse line of git-ls-tree output
1038 sub parse_ls_tree_line ($;%) {
1039         my $line = shift;
1040         my %opts = @_;
1041         my %res;
1042
1043         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1044         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1045
1046         $res{'mode'} = $1;
1047         $res{'type'} = $2;
1048         $res{'hash'} = $3;
1049         if ($opts{'-z'}) {
1050                 $res{'name'} = $4;
1051         } else {
1052                 $res{'name'} = unquote($4);
1053         }
1054
1055         return wantarray ? %res : \%res;
1056 }
1057
1058 ## ......................................................................
1059 ## parse to array of hashes functions
1060
1061 sub git_get_refs_list {
1062         my $ref_dir = shift;
1063         my @reflist;
1064
1065         my @refs;
1066         my $pfxlen = length("$projectroot/$project/$ref_dir");
1067         File::Find::find(sub {
1068                 return if (/^\./);
1069                 if (-f $_) {
1070                         push @refs, substr($File::Find::name, $pfxlen + 1);
1071                 }
1072         }, "$projectroot/$project/$ref_dir");
1073
1074         foreach my $ref_file (@refs) {
1075                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
1076                 my $type = git_get_type($ref_id) || next;
1077                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1078
1079                 push @reflist, \%ref_item;
1080         }
1081         # sort refs by age
1082         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1083         return \@reflist;
1084 }
1085
1086 ## ----------------------------------------------------------------------
1087 ## filesystem-related functions
1088
1089 sub get_file_owner {
1090         my $path = shift;
1091
1092         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1093         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1094         if (!defined $gcos) {
1095                 return undef;
1096         }
1097         my $owner = $gcos;
1098         $owner =~ s/[,;].*$//;
1099         return decode("utf8", $owner, Encode::FB_DEFAULT);
1100 }
1101
1102 ## ......................................................................
1103 ## mimetype related functions
1104
1105 sub mimetype_guess_file {
1106         my $filename = shift;
1107         my $mimemap = shift;
1108         -r $mimemap or return undef;
1109
1110         my %mimemap;
1111         open(MIME, $mimemap) or return undef;
1112         while (<MIME>) {
1113                 next if m/^#/; # skip comments
1114                 my ($mime, $exts) = split(/\t+/);
1115                 if (defined $exts) {
1116                         my @exts = split(/\s+/, $exts);
1117                         foreach my $ext (@exts) {
1118                                 $mimemap{$ext} = $mime;
1119                         }
1120                 }
1121         }
1122         close(MIME);
1123
1124         $filename =~ /\.(.*?)$/;
1125         return $mimemap{$1};
1126 }
1127
1128 sub mimetype_guess {
1129         my $filename = shift;
1130         my $mime;
1131         $filename =~ /\./ or return undef;
1132
1133         if ($mimetypes_file) {
1134                 my $file = $mimetypes_file;
1135                 if ($file !~ m!^/!) { # if it is relative path
1136                         # it is relative to project
1137                         $file = "$projectroot/$project/$file";
1138                 }
1139                 $mime = mimetype_guess_file($filename, $file);
1140         }
1141         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1142         return $mime;
1143 }
1144
1145 sub blob_mimetype {
1146         my $fd = shift;
1147         my $filename = shift;
1148
1149         if ($filename) {
1150                 my $mime = mimetype_guess($filename);
1151                 $mime and return $mime;
1152         }
1153
1154         # just in case
1155         return $default_blob_plain_mimetype unless $fd;
1156
1157         if (-T $fd) {
1158                 return 'text/plain' .
1159                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1160         } elsif (! $filename) {
1161                 return 'application/octet-stream';
1162         } elsif ($filename =~ m/\.png$/i) {
1163                 return 'image/png';
1164         } elsif ($filename =~ m/\.gif$/i) {
1165                 return 'image/gif';
1166         } elsif ($filename =~ m/\.jpe?g$/i) {
1167                 return 'image/jpeg';
1168         } else {
1169                 return 'application/octet-stream';
1170         }
1171 }
1172
1173 ## ======================================================================
1174 ## functions printing HTML: header, footer, error page
1175
1176 sub git_header_html {
1177         my $status = shift || "200 OK";
1178         my $expires = shift;
1179
1180         my $title = "$site_name git";
1181         if (defined $project) {
1182                 $title .= " - $project";
1183                 if (defined $action) {
1184                         $title .= "/$action";
1185                         if (defined $file_name) {
1186                                 $title .= " - $file_name";
1187                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1188                                         $title .= "/";
1189                                 }
1190                         }
1191                 }
1192         }
1193         my $content_type;
1194         # require explicit support from the UA if we are to send the page as
1195         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1196         # we have to do this because MSIE sometimes globs '*/*', pretending to
1197         # support xhtml+xml but choking when it gets what it asked for.
1198         if (defined $cgi->http('HTTP_ACCEPT') &&
1199             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1200             $cgi->Accept('application/xhtml+xml') != 0) {
1201                 $content_type = 'application/xhtml+xml';
1202         } else {
1203                 $content_type = 'text/html';
1204         }
1205         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1206                            -status=> $status, -expires => $expires);
1207         print <<EOF;
1208 <?xml version="1.0" encoding="utf-8"?>
1209 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1210 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1211 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1212 <!-- git core binaries version $git_version -->
1213 <head>
1214 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1215 <meta name="generator" content="gitweb/$version git/$git_version"/>
1216 <meta name="robots" content="index, nofollow"/>
1217 <title>$title</title>
1218 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1219 EOF
1220         if (defined $project) {
1221                 printf('<link rel="alternate" title="%s log" '.
1222                        'href="%s" type="application/rss+xml"/>'."\n",
1223                        esc_param($project), href(action=>"rss"));
1224         }
1225
1226         print "</head>\n" .
1227               "<body>\n" .
1228               "<div class=\"page_header\">\n" .
1229               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1230               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1231               "</a>\n";
1232         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1233         if (defined $project) {
1234                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1235                 if (defined $action) {
1236                         print " / $action";
1237                 }
1238                 print "\n";
1239                 if (!defined $searchtext) {
1240                         $searchtext = "";
1241                 }
1242                 my $search_hash;
1243                 if (defined $hash_base) {
1244                         $search_hash = $hash_base;
1245                 } elsif (defined $hash) {
1246                         $search_hash = $hash;
1247                 } else {
1248                         $search_hash = "HEAD";
1249                 }
1250                 $cgi->param("a", "search");
1251                 $cgi->param("h", $search_hash);
1252                 print $cgi->startform(-method => "get", -action => $my_uri) .
1253                       "<div class=\"search\">\n" .
1254                       $cgi->hidden(-name => "p") . "\n" .
1255                       $cgi->hidden(-name => "a") . "\n" .
1256                       $cgi->hidden(-name => "h") . "\n" .
1257                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1258                       "</div>" .
1259                       $cgi->end_form() . "\n";
1260         }
1261         print "</div>\n";
1262 }
1263
1264 sub git_footer_html {
1265         print "<div class=\"page_footer\">\n";
1266         if (defined $project) {
1267                 my $descr = git_get_project_description($project);
1268                 if (defined $descr) {
1269                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1270                 }
1271                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1272         } else {
1273                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1274         }
1275         print "</div>\n" .
1276               "</body>\n" .
1277               "</html>";
1278 }
1279
1280 sub die_error {
1281         my $status = shift || "403 Forbidden";
1282         my $error = shift || "Malformed query, file missing or permission denied";
1283
1284         git_header_html($status);
1285         print <<EOF;
1286 <div class="page_body">
1287 <br /><br />
1288 $status - $error
1289 <br />
1290 </div>
1291 EOF
1292         git_footer_html();
1293         exit;
1294 }
1295
1296 ## ----------------------------------------------------------------------
1297 ## functions printing or outputting HTML: navigation
1298
1299 sub git_print_page_nav {
1300         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1301         $extra = '' if !defined $extra; # pager or formats
1302
1303         my @navs = qw(summary shortlog log commit commitdiff tree);
1304         if ($suppress) {
1305                 @navs = grep { $_ ne $suppress } @navs;
1306         }
1307
1308         my %arg = map { $_ => {action=>$_} } @navs;
1309         if (defined $head) {
1310                 for (qw(commit commitdiff)) {
1311                         $arg{$_}{hash} = $head;
1312                 }
1313                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1314                         for (qw(shortlog log)) {
1315                                 $arg{$_}{hash} = $head;
1316                         }
1317                 }
1318         }
1319         $arg{tree}{hash} = $treehead if defined $treehead;
1320         $arg{tree}{hash_base} = $treebase if defined $treebase;
1321
1322         print "<div class=\"page_nav\">\n" .
1323                 (join " | ",
1324                  map { $_ eq $current ?
1325                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1326                  } @navs);
1327         print "<br/>\n$extra<br/>\n" .
1328               "</div>\n";
1329 }
1330
1331 sub format_paging_nav {
1332         my ($action, $hash, $head, $page, $nrevs) = @_;
1333         my $paging_nav;
1334
1335
1336         if ($hash ne $head || $page) {
1337                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1338         } else {
1339                 $paging_nav .= "HEAD";
1340         }
1341
1342         if ($page > 0) {
1343                 $paging_nav .= " &sdot; " .
1344                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1345                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1346         } else {
1347                 $paging_nav .= " &sdot; prev";
1348         }
1349
1350         if ($nrevs >= (100 * ($page+1)-1)) {
1351                 $paging_nav .= " &sdot; " .
1352                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1353                                  -accesskey => "n", -title => "Alt-n"}, "next");
1354         } else {
1355                 $paging_nav .= " &sdot; next";
1356         }
1357
1358         return $paging_nav;
1359 }
1360
1361 ## ......................................................................
1362 ## functions printing or outputting HTML: div
1363
1364 sub git_print_header_div {
1365         my ($action, $title, $hash, $hash_base) = @_;
1366         my %args = ();
1367
1368         $args{action} = $action;
1369         $args{hash} = $hash if $hash;
1370         $args{hash_base} = $hash_base if $hash_base;
1371
1372         print "<div class=\"header\">\n" .
1373               $cgi->a({-href => href(%args), -class => "title"},
1374               $title ? $title : $action) .
1375               "\n</div>\n";
1376 }
1377
1378 #sub git_print_authorship (\%) {
1379 sub git_print_authorship {
1380         my $co = shift;
1381
1382         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1383         print "<div class=\"author_date\">" .
1384               esc_html($co->{'author_name'}) .
1385               " [$ad{'rfc2822'}";
1386         if ($ad{'hour_local'} < 6) {
1387                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1388                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1389         } else {
1390                 printf(" (%02d:%02d %s)",
1391                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1392         }
1393         print "]</div>\n";
1394 }
1395
1396 sub git_print_page_path {
1397         my $name = shift;
1398         my $type = shift;
1399         my $hb = shift;
1400
1401         if (!defined $name) {
1402                 print "<div class=\"page_path\">/</div>\n";
1403         } elsif (defined $type && $type eq 'blob') {
1404                 print "<div class=\"page_path\">";
1405                 if (defined $hb) {
1406                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1407                                                      hash_base=>$hb)},
1408                                       esc_html($name));
1409                 } else {
1410                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
1411                                       esc_html($name));
1412                 }
1413                 print "<br/></div>\n";
1414         } else {
1415                 print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
1416         }
1417 }
1418
1419 # sub git_print_log (\@;%) {
1420 sub git_print_log ($;%) {
1421         my $log = shift;
1422         my %opts = @_;
1423
1424         if ($opts{'-remove_title'}) {
1425                 # remove title, i.e. first line of log
1426                 shift @$log;
1427         }
1428         # remove leading empty lines
1429         while (defined $log->[0] && $log->[0] eq "") {
1430                 shift @$log;
1431         }
1432
1433         # print log
1434         my $signoff = 0;
1435         my $empty = 0;
1436         foreach my $line (@$log) {
1437                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1438                         $signoff = 1;
1439                         $empty = 0;
1440                         if (! $opts{'-remove_signoff'}) {
1441                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1442                                 next;
1443                         } else {
1444                                 # remove signoff lines
1445                                 next;
1446                         }
1447                 } else {
1448                         $signoff = 0;
1449                 }
1450
1451                 # print only one empty line
1452                 # do not print empty line after signoff
1453                 if ($line eq "") {
1454                         next if ($empty || $signoff);
1455                         $empty = 1;
1456                 } else {
1457                         $empty = 0;
1458                 }
1459
1460                 print format_log_line_html($line) . "<br/>\n";
1461         }
1462
1463         if ($opts{'-final_empty_line'}) {
1464                 # end with single empty line
1465                 print "<br/>\n" unless $empty;
1466         }
1467 }
1468
1469 sub git_print_simplified_log {
1470         my $log = shift;
1471         my $remove_title = shift;
1472
1473         git_print_log($log,
1474                 -final_empty_line=> 1,
1475                 -remove_title => $remove_title);
1476 }
1477
1478 # print tree entry (row of git_tree), but without encompassing <tr> element
1479 sub git_print_tree_entry {
1480         my ($t, $basedir, $hash_base, $have_blame) = @_;
1481
1482         my %base_key = ();
1483         $base_key{hash_base} = $hash_base if defined $hash_base;
1484
1485         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1486         if ($t->{'type'} eq "blob") {
1487                 print "<td class=\"list\">" .
1488                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1489                                              file_name=>"$basedir$t->{'name'}", %base_key),
1490                               -class => "list"}, esc_html($t->{'name'})) .
1491                       "</td>\n" .
1492                       "<td class=\"link\">" .
1493                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1494                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1495                               "blob");
1496                 if ($have_blame) {
1497                         print " | " .
1498                                 $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1499                                                        file_name=>"$basedir$t->{'name'}", %base_key)},
1500                                         "blame");
1501                 }
1502                 if (defined $hash_base) {
1503                         print " | " .
1504                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1505                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1506                                       "history");
1507                 }
1508                 print " | " .
1509                       $cgi->a({-href => href(action=>"blob_plain",
1510                                              hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1511                               "raw") .
1512                       "</td>\n";
1513
1514         } elsif ($t->{'type'} eq "tree") {
1515                 print "<td class=\"list\">" .
1516                       $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1517                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1518                               esc_html($t->{'name'})) .
1519                       "</td>\n" .
1520                       "<td class=\"link\">" .
1521                       $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1522                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1523                               "tree");
1524                 if (defined $hash_base) {
1525                         print " | " .
1526                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1527                                                      file_name=>"$basedir$t->{'name'}")},
1528                                       "history");
1529                 }
1530                 print "</td>\n";
1531         }
1532 }
1533
1534 ## ......................................................................
1535 ## functions printing large fragments of HTML
1536
1537 sub git_difftree_body {
1538         my ($difftree, $hash, $parent) = @_;
1539
1540         print "<div class=\"list_head\">\n";
1541         if ($#{$difftree} > 10) {
1542                 print(($#{$difftree} + 1) . " files changed:\n");
1543         }
1544         print "</div>\n";
1545
1546         print "<table class=\"diff_tree\">\n";
1547         my $alternate = 0;
1548         my $patchno = 0;
1549         foreach my $line (@{$difftree}) {
1550                 my %diff = parse_difftree_raw_line($line);
1551
1552                 if ($alternate) {
1553                         print "<tr class=\"dark\">\n";
1554                 } else {
1555                         print "<tr class=\"light\">\n";
1556                 }
1557                 $alternate ^= 1;
1558
1559                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1560                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1561                 if ($diff{'to_mode'} ne ('0' x 6)) {
1562                         $to_mode_oct = oct $diff{'to_mode'};
1563                         if (S_ISREG($to_mode_oct)) { # only for regular file
1564                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1565                         }
1566                         $to_file_type = file_type($diff{'to_mode'});
1567                 }
1568                 if ($diff{'from_mode'} ne ('0' x 6)) {
1569                         $from_mode_oct = oct $diff{'from_mode'};
1570                         if (S_ISREG($to_mode_oct)) { # only for regular file
1571                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1572                         }
1573                         $from_file_type = file_type($diff{'from_mode'});
1574                 }
1575
1576                 if ($diff{'status'} eq "A") { # created
1577                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1578                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1579                         $mode_chng   .= "]</span>";
1580                         print "<td>" .
1581                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1582                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1583                                       -class => "list"}, esc_html($diff{'file'})) .
1584                               "</td>\n" .
1585                               "<td>$mode_chng</td>\n" .
1586                               "<td class=\"link\">" .
1587                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1588                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1589                                       "blob");
1590                         if ($action == "commitdiff") {
1591                                 # link to patch
1592                                 $patchno++;
1593                                 print " | " .
1594                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1595                         }
1596                         print "</td>\n";
1597
1598                 } elsif ($diff{'status'} eq "D") { # deleted
1599                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1600                         print "<td>" .
1601                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1602                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1603                                        -class => "list"}, esc_html($diff{'file'})) .
1604                               "</td>\n" .
1605                               "<td>$mode_chng</td>\n" .
1606                               "<td class=\"link\">" .
1607                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1608                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1609                                       "blob") .
1610                               " | ";
1611                         if ($action == "commitdiff") {
1612                                 # link to patch
1613                                 $patchno++;
1614                                 print " | " .
1615                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1616                         }
1617                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1618                                                      file_name=>$diff{'file'})},
1619                                       "history") .
1620                               "</td>\n";
1621
1622                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1623                         my $mode_chnge = "";
1624                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1625                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1626                                 if ($from_file_type != $to_file_type) {
1627                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1628                                 }
1629                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1630                                         if ($from_mode_str && $to_mode_str) {
1631                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1632                                         } elsif ($to_mode_str) {
1633                                                 $mode_chnge .= " mode: $to_mode_str";
1634                                         }
1635                                 }
1636                                 $mode_chnge .= "]</span>\n";
1637                         }
1638                         print "<td>";
1639                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1640                                 print $cgi->a({-href => href(action=>"blobdiff",
1641                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1642                                                              hash_base=>$hash, hash_parent_base=>$parent,
1643                                                              file_name=>$diff{'file'}),
1644                                               -class => "list"}, esc_html($diff{'file'}));
1645                         } else { # only mode changed
1646                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1647                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1648                                               -class => "list"}, esc_html($diff{'file'}));
1649                         }
1650                         print "</td>\n" .
1651                               "<td>$mode_chnge</td>\n" .
1652                               "<td class=\"link\">" .
1653                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1654                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1655                                       "blob");
1656                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1657                                 if ($action == "commitdiff") {
1658                                         # link to patch
1659                                         $patchno++;
1660                                         print " | " .
1661                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1662                                 } else {
1663                                         print " | " .
1664                                                 $cgi->a({-href => href(action=>"blobdiff",
1665                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1666                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1667                                                                        file_name=>$diff{'file'})},
1668                                                         "diff");
1669                                 }
1670                         }
1671                         print " | " .
1672                                 $cgi->a({-href => href(action=>"history",
1673                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1674                                         "history");
1675                         print "</td>\n";
1676
1677                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1678                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1679                         my $nstatus = $status_name{$diff{'status'}};
1680                         my $mode_chng = "";
1681                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1682                                 # mode also for directories, so we cannot use $to_mode_str
1683                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1684                         }
1685                         print "<td>" .
1686                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1687                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1688                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1689                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1690                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1691                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1692                                       -class => "list"}, esc_html($diff{'from_file'})) .
1693                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1694                               "<td class=\"link\">" .
1695                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1696                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1697                                       "blob");
1698                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1699                                 if ($action == "commitdiff") {
1700                                         # link to patch
1701                                         $patchno++;
1702                                         print " | " .
1703                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1704                                 } else {
1705                                         print " | " .
1706                                                 $cgi->a({-href => href(action=>"blobdiff",
1707                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1708                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1709                                                                        file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1710                                                         "diff");
1711                                 }
1712                         }
1713                         print "</td>\n";
1714
1715                 } # we should not encounter Unmerged (U) or Unknown (X) status
1716                 print "</tr>\n";
1717         }
1718         print "</table>\n";
1719 }
1720
1721 sub git_patchset_body {
1722         my ($fd, $difftree, $hash, $hash_parent) = @_;
1723
1724         my $patch_idx = 0;
1725         my $in_header = 0;
1726         my $patch_found = 0;
1727         my $diffinfo;
1728
1729         print "<div class=\"patchset\">\n";
1730
1731         LINE:
1732         while (my $patch_line = <$fd>) {
1733                 chomp $patch_line;
1734
1735                 if ($patch_line =~ m/^diff /) { # "git diff" header
1736                         # beginning of patch (in patchset)
1737                         if ($patch_found) {
1738                                 # close previous patch
1739                                 print "</div>\n"; # class="patch"
1740                         } else {
1741                                 # first patch in patchset
1742                                 $patch_found = 1;
1743                         }
1744                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1745
1746                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1747                                 $diffinfo = $difftree->[$patch_idx];
1748                         } else {
1749                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1750                         }
1751                         $patch_idx++;
1752
1753                         # for now, no extended header, hence we skip empty patches
1754                         # companion to  next LINE if $in_header;
1755                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1756                                 $in_header = 1;
1757                                 next LINE;
1758                         }
1759
1760                         if ($diffinfo->{'status'} eq "A") { # added
1761                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1762                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1763                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1764                                               $diffinfo->{'to_id'}) . "(new)" .
1765                                       "</div>\n"; # class="diff_info"
1766
1767                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1768                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1769                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1770                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1771                                               $diffinfo->{'from_id'}) . "(deleted)" .
1772                                       "</div>\n"; # class="diff_info"
1773
1774                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1775                                  $diffinfo->{'status'} eq "C" || # copied
1776                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1777                                 print "<div class=\"diff_info\">" .
1778                                       file_type($diffinfo->{'from_mode'}) . ":" .
1779                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1780                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1781                                               $diffinfo->{'from_id'}) .
1782                                       " -> " .
1783                                       file_type($diffinfo->{'to_mode'}) . ":" .
1784                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1785                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1786                                               $diffinfo->{'to_id'});
1787                                 print "</div>\n"; # class="diff_info"
1788
1789                         } else { # modified, mode changed, ...
1790                                 print "<div class=\"diff_info\">" .
1791                                       file_type($diffinfo->{'from_mode'}) . ":" .
1792                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1793                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1794                                               $diffinfo->{'from_id'}) .
1795                                       " -> " .
1796                                       file_type($diffinfo->{'to_mode'}) . ":" .
1797                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1798                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1799                                               $diffinfo->{'to_id'});
1800                                 print "</div>\n"; # class="diff_info"
1801                         }
1802
1803                         #print "<div class=\"diff extended_header\">\n";
1804                         $in_header = 1;
1805                         next LINE;
1806                 } # start of patch in patchset
1807
1808
1809                 if ($in_header && $patch_line =~ m/^---/) {
1810                         #print "</div>\n"; # class="diff extended_header"
1811                         $in_header = 0;
1812
1813                         my $file = $diffinfo->{'from_file'};
1814                         $file  ||= $diffinfo->{'file'};
1815                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1816                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1817                                         -class => "list"}, esc_html($file));
1818                         $patch_line =~ s|a/.*$|a/$file|g;
1819                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1820
1821                         $patch_line = <$fd>;
1822                         chomp $patch_line;
1823
1824                         #$patch_line =~ m/^+++/;
1825                         $file    = $diffinfo->{'to_file'};
1826                         $file  ||= $diffinfo->{'file'};
1827                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1828                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1829                                         -class => "list"}, esc_html($file));
1830                         $patch_line =~ s|b/.*|b/$file|g;
1831                         print "<div class=\"diff to_file\">$patch_line</div>\n";
1832
1833                         next LINE;
1834                 }
1835                 next LINE if $in_header;
1836
1837                 print format_diff_line($patch_line);
1838         }
1839         print "</div>\n" if $patch_found; # class="patch"
1840
1841         print "</div>\n"; # class="patchset"
1842 }
1843
1844 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1845
1846 sub git_shortlog_body {
1847         # uses global variable $project
1848         my ($revlist, $from, $to, $refs, $extra) = @_;
1849
1850         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1851         my $have_snapshot = (defined $ctype && defined $suffix);
1852
1853         $from = 0 unless defined $from;
1854         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1855
1856         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1857         my $alternate = 0;
1858         for (my $i = $from; $i <= $to; $i++) {
1859                 my $commit = $revlist->[$i];
1860                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1861                 my $ref = format_ref_marker($refs, $commit);
1862                 my %co = parse_commit($commit);
1863                 if ($alternate) {
1864                         print "<tr class=\"dark\">\n";
1865                 } else {
1866                         print "<tr class=\"light\">\n";
1867                 }
1868                 $alternate ^= 1;
1869                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1870                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1871                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1872                       "<td>";
1873                 print format_subject_html($co{'title'}, $co{'title_short'},
1874                                           href(action=>"commit", hash=>$commit), $ref);
1875                 print "</td>\n" .
1876                       "<td class=\"link\">" .
1877                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1878                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1879                 if ($have_snapshot) {
1880                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1881                 }
1882                 print "</td>\n" .
1883                       "</tr>\n";
1884         }
1885         if (defined $extra) {
1886                 print "<tr>\n" .
1887                       "<td colspan=\"4\">$extra</td>\n" .
1888                       "</tr>\n";
1889         }
1890         print "</table>\n";
1891 }
1892
1893 sub git_history_body {
1894         # Warning: assumes constant type (blob or tree) during history
1895         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1896
1897         print "<table class=\"history\" cellspacing=\"0\">\n";
1898         my $alternate = 0;
1899         while (my $line = <$fd>) {
1900                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1901                         next;
1902                 }
1903
1904                 my $commit = $1;
1905                 my %co = parse_commit($commit);
1906                 if (!%co) {
1907                         next;
1908                 }
1909
1910                 my $ref = format_ref_marker($refs, $commit);
1911
1912                 if ($alternate) {
1913                         print "<tr class=\"dark\">\n";
1914                 } else {
1915                         print "<tr class=\"light\">\n";
1916                 }
1917                 $alternate ^= 1;
1918                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1919                       # shortlog uses      chop_str($co{'author_name'}, 10)
1920                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1921                       "<td>";
1922                 # originally git_history used chop_str($co{'title'}, 50)
1923                 print format_subject_html($co{'title'}, $co{'title_short'},
1924                                           href(action=>"commit", hash=>$commit), $ref);
1925                 print "</td>\n" .
1926                       "<td class=\"link\">" .
1927                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1928                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1929                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1930
1931                 if ($ftype eq 'blob') {
1932                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1933                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1934                         if (defined $blob_current && defined $blob_parent &&
1935                                         $blob_current ne $blob_parent) {
1936                                 print " | " .
1937                                         $cgi->a({-href => href(action=>"blobdiff",
1938                                                                hash=>$blob_current, hash_parent=>$blob_parent,
1939                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
1940                                                                file_name=>$file_name)},
1941                                                 "diff to current");
1942                         }
1943                 }
1944                 print "</td>\n" .
1945                       "</tr>\n";
1946         }
1947         if (defined $extra) {
1948                 print "<tr>\n" .
1949                       "<td colspan=\"4\">$extra</td>\n" .
1950                       "</tr>\n";
1951         }
1952         print "</table>\n";
1953 }
1954
1955 sub git_tags_body {
1956         # uses global variable $project
1957         my ($taglist, $from, $to, $extra) = @_;
1958         $from = 0 unless defined $from;
1959         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1960
1961         print "<table class=\"tags\" cellspacing=\"0\">\n";
1962         my $alternate = 0;
1963         for (my $i = $from; $i <= $to; $i++) {
1964                 my $entry = $taglist->[$i];
1965                 my %tag = %$entry;
1966                 my $comment_lines = $tag{'comment'};
1967                 my $comment = shift @$comment_lines;
1968                 my $comment_short;
1969                 if (defined $comment) {
1970                         $comment_short = chop_str($comment, 30, 5);
1971                 }
1972                 if ($alternate) {
1973                         print "<tr class=\"dark\">\n";
1974                 } else {
1975                         print "<tr class=\"light\">\n";
1976                 }
1977                 $alternate ^= 1;
1978                 print "<td><i>$tag{'age'}</i></td>\n" .
1979                       "<td>" .
1980                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1981                                -class => "list name"}, esc_html($tag{'name'})) .
1982                       "</td>\n" .
1983                       "<td>";
1984                 if (defined $comment) {
1985                         print format_subject_html($comment, $comment_short,
1986                                                   href(action=>"tag", hash=>$tag{'id'}));
1987                 }
1988                 print "</td>\n" .
1989                       "<td class=\"selflink\">";
1990                 if ($tag{'type'} eq "tag") {
1991                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1992                 } else {
1993                         print "&nbsp;";
1994                 }
1995                 print "</td>\n" .
1996                       "<td class=\"link\">" . " | " .
1997                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1998                 if ($tag{'reftype'} eq "commit") {
1999                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2000                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2001                 } elsif ($tag{'reftype'} eq "blob") {
2002                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2003                 }
2004                 print "</td>\n" .
2005                       "</tr>";
2006         }
2007         if (defined $extra) {
2008                 print "<tr>\n" .
2009                       "<td colspan=\"5\">$extra</td>\n" .
2010                       "</tr>\n";
2011         }
2012         print "</table>\n";
2013 }
2014
2015 sub git_heads_body {
2016         # uses global variable $project
2017         my ($taglist, $head, $from, $to, $extra) = @_;
2018         $from = 0 unless defined $from;
2019         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2020
2021         print "<table class=\"heads\" cellspacing=\"0\">\n";
2022         my $alternate = 0;
2023         for (my $i = $from; $i <= $to; $i++) {
2024                 my $entry = $taglist->[$i];
2025                 my %tag = %$entry;
2026                 my $curr = $tag{'id'} eq $head;
2027                 if ($alternate) {
2028                         print "<tr class=\"dark\">\n";
2029                 } else {
2030                         print "<tr class=\"light\">\n";
2031                 }
2032                 $alternate ^= 1;
2033                 print "<td><i>$tag{'age'}</i></td>\n" .
2034                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2035                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2036                                -class => "list name"},esc_html($tag{'name'})) .
2037                       "</td>\n" .
2038                       "<td class=\"link\">" .
2039                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2040                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2041                       "</td>\n" .
2042                       "</tr>";
2043         }
2044         if (defined $extra) {
2045                 print "<tr>\n" .
2046                       "<td colspan=\"3\">$extra</td>\n" .
2047                       "</tr>\n";
2048         }
2049         print "</table>\n";
2050 }
2051
2052 ## ======================================================================
2053 ## ======================================================================
2054 ## actions
2055
2056 sub git_project_list {
2057         my $order = $cgi->param('o');
2058         if (defined $order && $order !~ m/project|descr|owner|age/) {
2059                 die_error(undef, "Unknown order parameter");
2060         }
2061
2062         my @list = git_get_projects_list();
2063         my @projects;
2064         if (!@list) {
2065                 die_error(undef, "No projects found");
2066         }
2067         foreach my $pr (@list) {
2068                 my $head = git_get_head_hash($pr->{'path'});
2069                 if (!defined $head) {
2070                         next;
2071                 }
2072                 $git_dir = "$projectroot/$pr->{'path'}";
2073                 my %co = parse_commit($head);
2074                 if (!%co) {
2075                         next;
2076                 }
2077                 $pr->{'commit'} = \%co;
2078                 if (!defined $pr->{'descr'}) {
2079                         my $descr = git_get_project_description($pr->{'path'}) || "";
2080                         $pr->{'descr'} = chop_str($descr, 25, 5);
2081                 }
2082                 if (!defined $pr->{'owner'}) {
2083                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2084                 }
2085                 push @projects, $pr;
2086         }
2087
2088         git_header_html();
2089         if (-f $home_text) {
2090                 print "<div class=\"index_include\">\n";
2091                 open (my $fd, $home_text);
2092                 print <$fd>;
2093                 close $fd;
2094                 print "</div>\n";
2095         }
2096         print "<table class=\"project_list\">\n" .
2097               "<tr>\n";
2098         $order ||= "project";
2099         if ($order eq "project") {
2100                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2101                 print "<th>Project</th>\n";
2102         } else {
2103                 print "<th>" .
2104                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
2105                                -class => "header"}, "Project") .
2106                       "</th>\n";
2107         }
2108         if ($order eq "descr") {
2109                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2110                 print "<th>Description</th>\n";
2111         } else {
2112                 print "<th>" .
2113                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
2114                                -class => "header"}, "Description") .
2115                       "</th>\n";
2116         }
2117         if ($order eq "owner") {
2118                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2119                 print "<th>Owner</th>\n";
2120         } else {
2121                 print "<th>" .
2122                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
2123                                -class => "header"}, "Owner") .
2124                       "</th>\n";
2125         }
2126         if ($order eq "age") {
2127                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2128                 print "<th>Last Change</th>\n";
2129         } else {
2130                 print "<th>" .
2131                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
2132                                -class => "header"}, "Last Change") .
2133                       "</th>\n";
2134         }
2135         print "<th></th>\n" .
2136               "</tr>\n";
2137         my $alternate = 0;
2138         foreach my $pr (@projects) {
2139                 if ($alternate) {
2140                         print "<tr class=\"dark\">\n";
2141                 } else {
2142                         print "<tr class=\"light\">\n";
2143                 }
2144                 $alternate ^= 1;
2145                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2146                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2147                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2148                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2149                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2150                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2151                       "<td class=\"link\">" .
2152                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2153                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2154                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2155                       "</td>\n" .
2156                       "</tr>\n";
2157         }
2158         print "</table>\n";
2159         git_footer_html();
2160 }
2161
2162 sub git_summary {
2163         my $descr = git_get_project_description($project) || "none";
2164         my $head = git_get_head_hash($project);
2165         my %co = parse_commit($head);
2166         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2167
2168         my $owner = git_get_project_owner($project);
2169
2170         my $refs = git_get_references();
2171         git_header_html();
2172         git_print_page_nav('summary','', $head);
2173
2174         print "<div class=\"title\">&nbsp;</div>\n";
2175         print "<table cellspacing=\"0\">\n" .
2176               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2177               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2178               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2179         # use per project git URL list in $projectroot/$project/cloneurl
2180         # or make project git URL from git base URL and project name
2181         my $url_tag = "URL";
2182         my @url_list = git_get_project_url_list($project);
2183         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2184         foreach my $git_url (@url_list) {
2185                 next unless $git_url;
2186                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2187                 $url_tag = "";
2188         }
2189         print "</table>\n";
2190
2191         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2192                 git_get_head_hash($project)
2193                 or die_error(undef, "Open git-rev-list failed");
2194         my @revlist = map { chomp; $_ } <$fd>;
2195         close $fd;
2196         git_print_header_div('shortlog');
2197         git_shortlog_body(\@revlist, 0, 15, $refs,
2198                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2199
2200         my $taglist = git_get_refs_list("refs/tags");
2201         if (defined @$taglist) {
2202                 git_print_header_div('tags');
2203                 git_tags_body($taglist, 0, 15,
2204                               $cgi->a({-href => href(action=>"tags")}, "..."));
2205         }
2206
2207         my $headlist = git_get_refs_list("refs/heads");
2208         if (defined @$headlist) {
2209                 git_print_header_div('heads');
2210                 git_heads_body($headlist, $head, 0, 15,
2211                                $cgi->a({-href => href(action=>"heads")}, "..."));
2212         }
2213
2214         git_footer_html();
2215 }
2216
2217 sub git_tag {
2218         my $head = git_get_head_hash($project);
2219         git_header_html();
2220         git_print_page_nav('','', $head,undef,$head);
2221         my %tag = parse_tag($hash);
2222         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2223         print "<div class=\"title_text\">\n" .
2224               "<table cellspacing=\"0\">\n" .
2225               "<tr>\n" .
2226               "<td>object</td>\n" .
2227               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2228                                $tag{'object'}) . "</td>\n" .
2229               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2230                                               $tag{'type'}) . "</td>\n" .
2231               "</tr>\n";
2232         if (defined($tag{'author'})) {
2233                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2234                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2235                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2236                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2237                         "</td></tr>\n";
2238         }
2239         print "</table>\n\n" .
2240               "</div>\n";
2241         print "<div class=\"page_body\">";
2242         my $comment = $tag{'comment'};
2243         foreach my $line (@$comment) {
2244                 print esc_html($line) . "<br/>\n";
2245         }
2246         print "</div>\n";
2247         git_footer_html();
2248 }
2249
2250 sub git_blame2 {
2251         my $fd;
2252         my $ftype;
2253
2254         if (!gitweb_check_feature('blame')) {
2255                 die_error('403 Permission denied', "Permission denied");
2256         }
2257         die_error('404 Not Found', "File name not defined") if (!$file_name);
2258         $hash_base ||= git_get_head_hash($project);
2259         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2260         my %co = parse_commit($hash_base)
2261                 or die_error(undef, "Reading commit failed");
2262         if (!defined $hash) {
2263                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2264                         or die_error(undef, "Error looking up file");
2265         }
2266         $ftype = git_get_type($hash);
2267         if ($ftype !~ "blob") {
2268                 die_error("400 Bad Request", "Object is not a blob");
2269         }
2270         open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2271                 or die_error(undef, "Open git-blame failed");
2272         git_header_html();
2273         my $formats_nav =
2274                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2275                         "blob") .
2276                 " | " .
2277                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2278                         "head");
2279         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2280         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2281         git_print_page_path($file_name, $ftype, $hash_base);
2282         my @rev_color = (qw(light2 dark2));
2283         my $num_colors = scalar(@rev_color);
2284         my $current_color = 0;
2285         my $last_rev;
2286         print <<HTML;
2287 <div class="page_body">
2288 <table class="blame">
2289 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2290 HTML
2291         while (<$fd>) {
2292                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2293                 my $full_rev = $1;
2294                 my $rev = substr($full_rev, 0, 8);
2295                 my $lineno = $2;
2296                 my $data = $3;
2297
2298                 if (!defined $last_rev) {
2299                         $last_rev = $full_rev;
2300                 } elsif ($last_rev ne $full_rev) {
2301                         $last_rev = $full_rev;
2302                         $current_color = ++$current_color % $num_colors;
2303                 }
2304                 print "<tr class=\"$rev_color[$current_color]\">\n";
2305                 print "<td class=\"sha1\">" .
2306                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2307                                 esc_html($rev)) . "</td>\n";
2308                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2309                       esc_html($lineno) . "</a></td>\n";
2310                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2311                 print "</tr>\n";
2312         }
2313         print "</table>\n";
2314         print "</div>";
2315         close $fd
2316                 or print "Reading blob failed\n";
2317         git_footer_html();
2318 }
2319
2320 sub git_blame {
2321         my $fd;
2322
2323         if (!gitweb_check_feature('blame')) {
2324                 die_error('403 Permission denied', "Permission denied");
2325         }
2326         die_error('404 Not Found', "File name not defined") if (!$file_name);
2327         $hash_base ||= git_get_head_hash($project);
2328         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2329         my %co = parse_commit($hash_base)
2330                 or die_error(undef, "Reading commit failed");
2331         if (!defined $hash) {
2332                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2333                         or die_error(undef, "Error lookup file");
2334         }
2335         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2336                 or die_error(undef, "Open git-annotate failed");
2337         git_header_html();
2338         my $formats_nav =
2339                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2340                         "blob") .
2341                 " | " .
2342                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2343                         "head");
2344         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2345         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2346         git_print_page_path($file_name, 'blob', $hash_base);
2347         print "<div class=\"page_body\">\n";
2348         print <<HTML;
2349 <table class="blame">
2350   <tr>
2351     <th>Commit</th>
2352     <th>Age</th>
2353     <th>Author</th>
2354     <th>Line</th>
2355     <th>Data</th>
2356   </tr>
2357 HTML
2358         my @line_class = (qw(light dark));
2359         my $line_class_len = scalar (@line_class);
2360         my $line_class_num = $#line_class;
2361         while (my $line = <$fd>) {
2362                 my $long_rev;
2363                 my $short_rev;
2364                 my $author;
2365                 my $time;
2366                 my $lineno;
2367                 my $data;
2368                 my $age;
2369                 my $age_str;
2370                 my $age_class;
2371
2372                 chomp $line;
2373                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2374
2375                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2376                         $long_rev = $1;
2377                         $author   = $2;
2378                         $time     = $3;
2379                         $lineno   = $4;
2380                         $data     = $5;
2381                 } else {
2382                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2383                         next;
2384                 }
2385                 $short_rev  = substr ($long_rev, 0, 8);
2386                 $age        = time () - $time;
2387                 $age_str    = age_string ($age);
2388                 $age_str    =~ s/ /&nbsp;/g;
2389                 $age_class  = age_class($age);
2390                 $author     = esc_html ($author);
2391                 $author     =~ s/ /&nbsp;/g;
2392
2393                 $data = untabify($data);
2394                 $data = esc_html ($data);
2395
2396                 print <<HTML;
2397   <tr class="$line_class[$line_class_num]">
2398     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2399     <td class="$age_class">$age_str</td>
2400     <td>$author</td>
2401     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2402     <td class="pre">$data</td>
2403   </tr>
2404 HTML
2405         } # while (my $line = <$fd>)
2406         print "</table>\n\n";
2407         close $fd
2408                 or print "Reading blob failed.\n";
2409         print "</div>";
2410         git_footer_html();
2411 }
2412
2413 sub git_tags {
2414         my $head = git_get_head_hash($project);
2415         git_header_html();
2416         git_print_page_nav('','', $head,undef,$head);
2417         git_print_header_div('summary', $project);
2418
2419         my $taglist = git_get_refs_list("refs/tags");
2420         if (defined @$taglist) {
2421                 git_tags_body($taglist);
2422         }
2423         git_footer_html();
2424 }
2425
2426 sub git_heads {
2427         my $head = git_get_head_hash($project);
2428         git_header_html();
2429         git_print_page_nav('','', $head,undef,$head);
2430         git_print_header_div('summary', $project);
2431
2432         my $taglist = git_get_refs_list("refs/heads");
2433         if (defined @$taglist) {
2434                 git_heads_body($taglist, $head);
2435         }
2436         git_footer_html();
2437 }
2438
2439 sub git_blob_plain {
2440         # blobs defined by non-textual hash id's can be cached
2441         my $expires;
2442         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2443                 $expires = "+1d";
2444         }
2445
2446         if (!defined $hash) {
2447                 if (defined $file_name) {
2448                         my $base = $hash_base || git_get_head_hash($project);
2449                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2450                                 or die_error(undef, "Error lookup file");
2451                 } else {
2452                         die_error(undef, "No file name defined");
2453                 }
2454         }
2455         my $type = shift;
2456         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2457                 or die_error(undef, "Couldn't cat $file_name, $hash");
2458
2459         $type ||= blob_mimetype($fd, $file_name);
2460
2461         # save as filename, even when no $file_name is given
2462         my $save_as = "$hash";
2463         if (defined $file_name) {
2464                 $save_as = $file_name;
2465         } elsif ($type =~ m/^text\//) {
2466                 $save_as .= '.txt';
2467         }
2468
2469         print $cgi->header(
2470                 -type => "$type",
2471                 -expires=>$expires,
2472                 -content_disposition => "inline; filename=\"$save_as\"");
2473         undef $/;
2474         binmode STDOUT, ':raw';
2475         print <$fd>;
2476         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2477         $/ = "\n";
2478         close $fd;
2479 }
2480
2481 sub git_blob {
2482         # blobs defined by non-textual hash id's can be cached
2483         my $expires;
2484         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2485                 $expires = "+1d";
2486         }
2487
2488         if (!defined $hash) {
2489                 if (defined $file_name) {
2490                         my $base = $hash_base || git_get_head_hash($project);
2491                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2492                                 or die_error(undef, "Error lookup file");
2493                 } else {
2494                         die_error(undef, "No file name defined");
2495                 }
2496         }
2497         my $have_blame = gitweb_check_feature('blame');
2498         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2499                 or die_error(undef, "Couldn't cat $file_name, $hash");
2500         my $mimetype = blob_mimetype($fd, $file_name);
2501         if ($mimetype !~ m/^text\//) {
2502                 close $fd;
2503                 return git_blob_plain($mimetype);
2504         }
2505         git_header_html(undef, $expires);
2506         my $formats_nav = '';
2507         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2508                 if (defined $file_name) {
2509                         if ($have_blame) {
2510                                 $formats_nav .=
2511                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2512                                                                hash=>$hash, file_name=>$file_name)},
2513                                                 "blame") .
2514                                         " | ";
2515                         }
2516                         $formats_nav .=
2517                                 $cgi->a({-href => href(action=>"blob_plain",
2518                                                        hash=>$hash, file_name=>$file_name)},
2519                                         "plain") .
2520                                 " | " .
2521                                 $cgi->a({-href => href(action=>"blob",
2522                                                        hash_base=>"HEAD", file_name=>$file_name)},
2523                                         "head");
2524                 } else {
2525                         $formats_nav .=
2526                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2527                 }
2528                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2529                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2530         } else {
2531                 print "<div class=\"page_nav\">\n" .
2532                       "<br/><br/></div>\n" .
2533                       "<div class=\"title\">$hash</div>\n";
2534         }
2535         git_print_page_path($file_name, "blob", $hash_base);
2536         print "<div class=\"page_body\">\n";
2537         my $nr;
2538         while (my $line = <$fd>) {
2539                 chomp $line;
2540                 $nr++;
2541                 $line = untabify($line);
2542                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2543                        $nr, $nr, $nr, esc_html($line);
2544         }
2545         close $fd
2546                 or print "Reading blob failed.\n";
2547         print "</div>";
2548         git_footer_html();
2549 }
2550
2551 sub git_tree {
2552         if (!defined $hash) {
2553                 $hash = git_get_head_hash($project);
2554                 if (defined $file_name) {
2555                         my $base = $hash_base || $hash;
2556                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2557                 }
2558                 if (!defined $hash_base) {
2559                         $hash_base = $hash;
2560                 }
2561         }
2562         $/ = "\0";
2563         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2564                 or die_error(undef, "Open git-ls-tree failed");
2565         my @entries = map { chomp; $_ } <$fd>;
2566         close $fd or die_error(undef, "Reading tree failed");
2567         $/ = "\n";
2568
2569         my $refs = git_get_references();
2570         my $ref = format_ref_marker($refs, $hash_base);
2571         git_header_html();
2572         my $base = "";
2573         my $have_blame = gitweb_check_feature('blame');
2574         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2575                 git_print_page_nav('tree','', $hash_base);
2576                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2577         } else {
2578                 undef $hash_base;
2579                 print "<div class=\"page_nav\">\n";
2580                 print "<br/><br/></div>\n";
2581                 print "<div class=\"title\">$hash</div>\n";
2582         }
2583         if (defined $file_name) {
2584                 $base = esc_html("$file_name/");
2585         }
2586         git_print_page_path($file_name, 'tree', $hash_base);
2587         print "<div class=\"page_body\">\n";
2588         print "<table cellspacing=\"0\">\n";
2589         my $alternate = 0;
2590         foreach my $line (@entries) {
2591                 my %t = parse_ls_tree_line($line, -z => 1);
2592
2593                 if ($alternate) {
2594                         print "<tr class=\"dark\">\n";
2595                 } else {
2596                         print "<tr class=\"light\">\n";
2597                 }
2598                 $alternate ^= 1;
2599
2600                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2601
2602                 print "</tr>\n";
2603         }
2604         print "</table>\n" .
2605               "</div>";
2606         git_footer_html();
2607 }
2608
2609 sub git_snapshot {
2610
2611         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2612         my $have_snapshot = (defined $ctype && defined $suffix);
2613         if (!$have_snapshot) {
2614                 die_error('403 Permission denied', "Permission denied");
2615         }
2616
2617         if (!defined $hash) {
2618                 $hash = git_get_head_hash($project);
2619         }
2620
2621         my $filename = basename($project) . "-$hash.tar.$suffix";
2622
2623         print $cgi->header(-type => 'application/x-tar',
2624                            -content_encoding => $ctype,
2625                            -content_disposition => "inline; filename=\"$filename\"",
2626                            -status => '200 OK');
2627
2628         my $git_command = git_cmd_str();
2629         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2630                 die_error(undef, "Execute git-tar-tree failed.");
2631         binmode STDOUT, ':raw';
2632         print <$fd>;
2633         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2634         close $fd;
2635
2636 }
2637
2638 sub git_log {
2639         my $head = git_get_head_hash($project);
2640         if (!defined $hash) {
2641                 $hash = $head;
2642         }
2643         if (!defined $page) {
2644                 $page = 0;
2645         }
2646         my $refs = git_get_references();
2647
2648         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2649         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2650                 or die_error(undef, "Open git-rev-list failed");
2651         my @revlist = map { chomp; $_ } <$fd>;
2652         close $fd;
2653
2654         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2655
2656         git_header_html();
2657         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2658
2659         if (!@revlist) {
2660                 my %co = parse_commit($hash);
2661
2662                 git_print_header_div('summary', $project);
2663                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2664         }
2665         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2666                 my $commit = $revlist[$i];
2667                 my $ref = format_ref_marker($refs, $commit);
2668                 my %co = parse_commit($commit);
2669                 next if !%co;
2670                 my %ad = parse_date($co{'author_epoch'});
2671                 git_print_header_div('commit',
2672                                "<span class=\"age\">$co{'age_string'}</span>" .
2673                                esc_html($co{'title'}) . $ref,
2674                                $commit);
2675                 print "<div class=\"title_text\">\n" .
2676                       "<div class=\"log_link\">\n" .
2677                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2678                       " | " .
2679                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2680                       "<br/>\n" .
2681                       "</div>\n" .
2682                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2683                       "</div>\n";
2684
2685                 print "<div class=\"log_body\">\n";
2686                 git_print_simplified_log($co{'comment'});
2687                 print "</div>\n";
2688         }
2689         git_footer_html();
2690 }
2691
2692 sub git_commit {
2693         my %co = parse_commit($hash);
2694         if (!%co) {
2695                 die_error(undef, "Unknown commit object");
2696         }
2697         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2698         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2699
2700         my $parent = $co{'parent'};
2701         if (!defined $parent) {
2702                 $parent = "--root";
2703         }
2704         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2705                 or die_error(undef, "Open git-diff-tree failed");
2706         my @difftree = map { chomp; $_ } <$fd>;
2707         close $fd or die_error(undef, "Reading git-diff-tree failed");
2708
2709         # non-textual hash id's can be cached
2710         my $expires;
2711         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2712                 $expires = "+1d";
2713         }
2714         my $refs = git_get_references();
2715         my $ref = format_ref_marker($refs, $co{'id'});
2716
2717         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2718         my $have_snapshot = (defined $ctype && defined $suffix);
2719
2720         my $formats_nav = '';
2721         if (defined $file_name && defined $co{'parent'}) {
2722                 my $parent = $co{'parent'};
2723                 $formats_nav .=
2724                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2725                                 "blame");
2726         }
2727         git_header_html(undef, $expires);
2728         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2729                            $hash, $co{'tree'}, $hash,
2730                            $formats_nav);
2731
2732         if (defined $co{'parent'}) {
2733                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2734         } else {
2735                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2736         }
2737         print "<div class=\"title_text\">\n" .
2738               "<table cellspacing=\"0\">\n";
2739         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2740               "<tr>" .
2741               "<td></td><td> $ad{'rfc2822'}";
2742         if ($ad{'hour_local'} < 6) {
2743                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2744                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2745         } else {
2746                 printf(" (%02d:%02d %s)",
2747                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2748         }
2749         print "</td>" .
2750               "</tr>\n";
2751         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2752         print "<tr><td></td><td> $cd{'rfc2822'}" .
2753               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2754               "</td></tr>\n";
2755         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2756         print "<tr>" .
2757               "<td>tree</td>" .
2758               "<td class=\"sha1\">" .
2759               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2760                        class => "list"}, $co{'tree'}) .
2761               "</td>" .
2762               "<td class=\"link\">" .
2763               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2764                       "tree");
2765         if ($have_snapshot) {
2766                 print " | " .
2767                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2768         }
2769         print "</td>" .
2770               "</tr>\n";
2771         my $parents = $co{'parents'};
2772         foreach my $par (@$parents) {
2773                 print "<tr>" .
2774                       "<td>parent</td>" .
2775                       "<td class=\"sha1\">" .
2776                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2777                                class => "list"}, $par) .
2778                       "</td>" .
2779                       "<td class=\"link\">" .
2780                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2781                       " | " .
2782                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2783                       "</td>" .
2784                       "</tr>\n";
2785         }
2786         print "</table>".
2787               "</div>\n";
2788
2789         print "<div class=\"page_body\">\n";
2790         git_print_log($co{'comment'});
2791         print "</div>\n";
2792
2793         git_difftree_body(\@difftree, $hash, $parent);
2794
2795         git_footer_html();
2796 }
2797
2798 sub git_blobdiff {
2799         my $format = shift || 'html';
2800
2801         my $fd;
2802         my @difftree;
2803         my %diffinfo;
2804         my $expires;
2805
2806         # preparing $fd and %diffinfo for git_patchset_body
2807         # new style URI
2808         if (defined $hash_base && defined $hash_parent_base) {
2809                 if (defined $file_name) {
2810                         # read raw output
2811                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2812                                 "--", $file_name
2813                                 or die_error(undef, "Open git-diff-tree failed");
2814                         @difftree = map { chomp; $_ } <$fd>;
2815                         close $fd
2816                                 or die_error(undef, "Reading git-diff-tree failed");
2817                         @difftree
2818                                 or die_error('404 Not Found', "Blob diff not found");
2819
2820                 } elsif (defined $hash &&
2821                          $hash =~ /[0-9a-fA-F]{40}/) {
2822                         # try to find filename from $hash
2823
2824                         # read filtered raw output
2825                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2826                                 or die_error(undef, "Open git-diff-tree failed");
2827                         @difftree =
2828                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2829                                 # $hash == to_id
2830                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2831                                 map { chomp; $_ } <$fd>;
2832                         close $fd
2833                                 or die_error(undef, "Reading git-diff-tree failed");
2834                         @difftree
2835                                 or die_error('404 Not Found', "Blob diff not found");
2836
2837                 } else {
2838                         die_error('404 Not Found', "Missing one of the blob diff parameters");
2839                 }
2840
2841                 if (@difftree > 1) {
2842                         die_error('404 Not Found', "Ambiguous blob diff specification");
2843                 }
2844
2845                 %diffinfo = parse_difftree_raw_line($difftree[0]);
2846                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2847                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2848
2849                 $hash_parent ||= $diffinfo{'from_id'};
2850                 $hash        ||= $diffinfo{'to_id'};
2851
2852                 # non-textual hash id's can be cached
2853                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2854                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2855                         $expires = '+1d';
2856                 }
2857
2858                 # open patch output
2859                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2860                         '-p', $hash_parent_base, $hash_base,
2861                         "--", $file_name
2862                         or die_error(undef, "Open git-diff-tree failed");
2863         }
2864
2865         # old/legacy style URI
2866         if (!%diffinfo && # if new style URI failed
2867             defined $hash && defined $hash_parent) {
2868                 # fake git-diff-tree raw output
2869                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
2870                 $diffinfo{'from_id'} = $hash_parent;
2871                 $diffinfo{'to_id'}   = $hash;
2872                 if (defined $file_name) {
2873                         if (defined $file_parent) {
2874                                 $diffinfo{'status'} = '2';
2875                                 $diffinfo{'from_file'} = $file_parent;
2876                                 $diffinfo{'to_file'}   = $file_name;
2877                         } else { # assume not renamed
2878                                 $diffinfo{'status'} = '1';
2879                                 $diffinfo{'from_file'} = $file_name;
2880                                 $diffinfo{'to_file'}   = $file_name;
2881                         }
2882                 } else { # no filename given
2883                         $diffinfo{'status'} = '2';
2884                         $diffinfo{'from_file'} = $hash_parent;
2885                         $diffinfo{'to_file'}   = $hash;
2886                 }
2887
2888                 # non-textual hash id's can be cached
2889                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
2890                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
2891                         $expires = '+1d';
2892                 }
2893
2894                 # open patch output
2895                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
2896                         or die_error(undef, "Open git-diff failed");
2897         } else  {
2898                 die_error('404 Not Found', "Missing one of the blob diff parameters")
2899                         unless %diffinfo;
2900         }
2901
2902         # header
2903         if ($format eq 'html') {
2904                 my $formats_nav =
2905                         $cgi->a({-href => href(action=>"blobdiff_plain",
2906                                                hash=>$hash, hash_parent=>$hash_parent,
2907                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
2908                                                file_name=>$file_name, file_parent=>$file_parent)},
2909                                 "plain");
2910                 git_header_html(undef, $expires);
2911                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2912                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2913                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2914                 } else {
2915                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
2916                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
2917                 }
2918                 if (defined $file_name) {
2919                         git_print_page_path($file_name, "blob", $hash_base);
2920                 } else {
2921                         print "<div class=\"page_path\"></div>\n";
2922                 }
2923
2924         } elsif ($format eq 'plain') {
2925                 print $cgi->header(
2926                         -type => 'text/plain',
2927                         -charset => 'utf-8',
2928                         -expires => $expires,
2929                         -content_disposition => qq(inline; filename="${file_name}.patch"));
2930
2931                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
2932
2933         } else {
2934                 die_error(undef, "Unknown blobdiff format");
2935         }
2936
2937         # patch
2938         if ($format eq 'html') {
2939                 print "<div class=\"page_body\">\n";
2940
2941                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
2942                 close $fd;
2943
2944                 print "</div>\n"; # class="page_body"
2945                 git_footer_html();
2946
2947         } else {
2948                 while (my $line = <$fd>) {
2949                         $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
2950                         $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
2951
2952                         print $line;
2953
2954                         last if $line =~ m!^\+\+\+!;
2955                 }
2956                 local $/ = undef;
2957                 print <$fd>;
2958                 close $fd;
2959         }
2960 }
2961
2962 sub git_blobdiff_plain {
2963         git_blobdiff('plain');
2964 }
2965
2966 sub git_commitdiff {
2967         my $format = shift || 'html';
2968         my %co = parse_commit($hash);
2969         if (!%co) {
2970                 die_error(undef, "Unknown commit object");
2971         }
2972         if (!defined $hash_parent) {
2973                 $hash_parent = $co{'parent'} || '--root';
2974         }
2975
2976         # read commitdiff
2977         my $fd;
2978         my @difftree;
2979         if ($format eq 'html') {
2980                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2981                         "--patch-with-raw", "--full-index", $hash_parent, $hash
2982                         or die_error(undef, "Open git-diff-tree failed");
2983
2984                 while (chomp(my $line = <$fd>)) {
2985                         # empty line ends raw part of diff-tree output
2986                         last unless $line;
2987                         push @difftree, $line;
2988                 }
2989
2990         } elsif ($format eq 'plain') {
2991                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2992                         '-p', $hash_parent, $hash
2993                         or die_error(undef, "Open git-diff-tree failed");
2994
2995         } else {
2996                 die_error(undef, "Unknown commitdiff format");
2997         }
2998
2999         # non-textual hash id's can be cached
3000         my $expires;
3001         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3002                 $expires = "+1d";
3003         }
3004
3005         # write commit message
3006         if ($format eq 'html') {
3007                 my $refs = git_get_references();
3008                 my $ref = format_ref_marker($refs, $co{'id'});
3009                 my $formats_nav =
3010                         $cgi->a({-href => href(action=>"commitdiff_plain",
3011                                                hash=>$hash, hash_parent=>$hash_parent)},
3012                                 "plain");
3013
3014                 git_header_html(undef, $expires);
3015                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3016                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3017                 git_print_authorship(\%co);
3018                 print "<div class=\"page_body\">\n";
3019                 print "<div class=\"log\">\n";
3020                 git_print_simplified_log($co{'comment'}, 1); # skip title
3021                 print "</div>\n"; # class="log"
3022
3023         } elsif ($format eq 'plain') {
3024                 my $refs = git_get_references("tags");
3025                 my $tagname = git_get_rev_name_tags($hash);
3026                 my $filename = basename($project) . "-$hash.patch";
3027
3028                 print $cgi->header(
3029                         -type => 'text/plain',
3030                         -charset => 'utf-8',
3031                         -expires => $expires,
3032                         -content_disposition => qq(inline; filename="$filename"));
3033                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3034                 print <<TEXT;
3035 From: $co{'author'}
3036 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3037 Subject: $co{'title'}
3038 TEXT
3039                 print "X-Git-Tag: $tagname\n" if $tagname;
3040                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3041
3042                 foreach my $line (@{$co{'comment'}}) {
3043                         print "$line\n";
3044                 }
3045                 print "---\n\n";
3046         }
3047
3048         # write patch
3049         if ($format eq 'html') {
3050                 git_difftree_body(\@difftree, $hash, $hash_parent);
3051                 print "<br/>\n";
3052
3053                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3054                 close $fd;
3055                 print "</div>\n"; # class="page_body"
3056                 git_footer_html();
3057
3058         } elsif ($format eq 'plain') {
3059                 local $/ = undef;
3060                 print <$fd>;
3061                 close $fd
3062                         or print "Reading git-diff-tree failed\n";
3063         }
3064 }
3065
3066 sub git_commitdiff_plain {
3067         git_commitdiff('plain');
3068 }
3069
3070 sub git_history {
3071         if (!defined $hash_base) {
3072                 $hash_base = git_get_head_hash($project);
3073         }
3074         my $ftype;
3075         my %co = parse_commit($hash_base);
3076         if (!%co) {
3077                 die_error(undef, "Unknown commit object");
3078         }
3079         my $refs = git_get_references();
3080         git_header_html();
3081         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
3082         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3083         if (!defined $hash && defined $file_name) {
3084                 $hash = git_get_hash_by_path($hash_base, $file_name);
3085         }
3086         if (defined $hash) {
3087                 $ftype = git_get_type($hash);
3088         }
3089         git_print_page_path($file_name, $ftype, $hash_base);
3090
3091         open my $fd, "-|",
3092                 git_cmd(), "rev-list", "--full-history", $hash_base, "--", $file_name;
3093
3094         git_history_body($fd, $refs, $hash_base, $ftype);
3095
3096         close $fd;
3097         git_footer_html();
3098 }
3099
3100 sub git_search {
3101         if (!defined $searchtext) {
3102                 die_error(undef, "Text field empty");
3103         }
3104         if (!defined $hash) {
3105                 $hash = git_get_head_hash($project);
3106         }
3107         my %co = parse_commit($hash);
3108         if (!%co) {
3109                 die_error(undef, "Unknown commit object");
3110         }
3111         # pickaxe may take all resources of your box and run for several minutes
3112         # with every query - so decide by yourself how public you make this feature :)
3113         my $commit_search = 1;
3114         my $author_search = 0;
3115         my $committer_search = 0;
3116         my $pickaxe_search = 0;
3117         if ($searchtext =~ s/^author\\://i) {
3118                 $author_search = 1;
3119         } elsif ($searchtext =~ s/^committer\\://i) {
3120                 $committer_search = 1;
3121         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3122                 $commit_search = 0;
3123                 $pickaxe_search = 1;
3124         }
3125         git_header_html();
3126         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3127         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3128
3129         print "<table cellspacing=\"0\">\n";
3130         my $alternate = 0;
3131         if ($commit_search) {
3132                 $/ = "\0";
3133                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3134                 while (my $commit_text = <$fd>) {
3135                         if (!grep m/$searchtext/i, $commit_text) {
3136                                 next;
3137                         }
3138                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3139                                 next;
3140                         }
3141                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3142                                 next;
3143                         }
3144                         my @commit_lines = split "\n", $commit_text;
3145                         my %co = parse_commit(undef, \@commit_lines);
3146                         if (!%co) {
3147                                 next;
3148                         }
3149                         if ($alternate) {
3150                                 print "<tr class=\"dark\">\n";
3151                         } else {
3152                                 print "<tr class=\"light\">\n";
3153                         }
3154                         $alternate ^= 1;
3155                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3156                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3157                               "<td>" .
3158                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3159                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3160                         my $comment = $co{'comment'};
3161                         foreach my $line (@$comment) {
3162                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3163                                         my $lead = esc_html($1) || "";
3164                                         $lead = chop_str($lead, 30, 10);
3165                                         my $match = esc_html($2) || "";
3166                                         my $trail = esc_html($3) || "";
3167                                         $trail = chop_str($trail, 30, 10);
3168                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3169                                         print chop_str($text, 80, 5) . "<br/>\n";
3170                                 }
3171                         }
3172                         print "</td>\n" .
3173                               "<td class=\"link\">" .
3174                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3175                               " | " .
3176                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3177                         print "</td>\n" .
3178                               "</tr>\n";
3179                 }
3180                 close $fd;
3181         }
3182
3183         if ($pickaxe_search) {
3184                 $/ = "\n";
3185                 my $git_command = git_cmd_str();
3186                 open my $fd, "-|", "$git_command rev-list $hash | " .
3187                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3188                 undef %co;
3189                 my @files;
3190                 while (my $line = <$fd>) {
3191                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3192                                 my %set;
3193                                 $set{'file'} = $6;
3194                                 $set{'from_id'} = $3;
3195                                 $set{'to_id'} = $4;
3196                                 $set{'id'} = $set{'to_id'};
3197                                 if ($set{'id'} =~ m/0{40}/) {
3198                                         $set{'id'} = $set{'from_id'};
3199                                 }
3200                                 if ($set{'id'} =~ m/0{40}/) {
3201                                         next;
3202                                 }
3203                                 push @files, \%set;
3204                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3205                                 if (%co) {
3206                                         if ($alternate) {
3207                                                 print "<tr class=\"dark\">\n";
3208                                         } else {
3209                                                 print "<tr class=\"light\">\n";
3210                                         }
3211                                         $alternate ^= 1;
3212                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3213                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3214                                               "<td>" .
3215                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3216                                                       -class => "list subject"},
3217                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3218                                         while (my $setref = shift @files) {
3219                                                 my %set = %$setref;
3220                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3221                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3222                                                               -class => "list"},
3223                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3224                                                       "<br/>\n";
3225                                         }
3226                                         print "</td>\n" .
3227                                               "<td class=\"link\">" .
3228                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3229                                               " | " .
3230                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3231                                         print "</td>\n" .
3232                                               "</tr>\n";
3233                                 }
3234                                 %co = parse_commit($1);
3235                         }
3236                 }
3237                 close $fd;
3238         }
3239         print "</table>\n";
3240         git_footer_html();
3241 }
3242
3243 sub git_shortlog {
3244         my $head = git_get_head_hash($project);
3245         if (!defined $hash) {
3246                 $hash = $head;
3247         }
3248         if (!defined $page) {
3249                 $page = 0;
3250         }
3251         my $refs = git_get_references();
3252
3253         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3254         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3255                 or die_error(undef, "Open git-rev-list failed");
3256         my @revlist = map { chomp; $_ } <$fd>;
3257         close $fd;
3258
3259         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3260         my $next_link = '';
3261         if ($#revlist >= (100 * ($page+1)-1)) {
3262                 $next_link =
3263                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3264                                  -title => "Alt-n"}, "next");
3265         }
3266
3267
3268         git_header_html();
3269         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3270         git_print_header_div('summary', $project);
3271
3272         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3273
3274         git_footer_html();
3275 }
3276
3277 ## ......................................................................
3278 ## feeds (RSS, OPML)
3279
3280 sub git_rss {
3281         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3282         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3283                 or die_error(undef, "Open git-rev-list failed");
3284         my @revlist = map { chomp; $_ } <$fd>;
3285         close $fd or die_error(undef, "Reading git-rev-list failed");
3286         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3287         print <<XML;
3288 <?xml version="1.0" encoding="utf-8"?>
3289 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3290 <channel>
3291 <title>$project $my_uri $my_url</title>
3292 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3293 <description>$project log</description>
3294 <language>en</language>
3295 XML
3296
3297         for (my $i = 0; $i <= $#revlist; $i++) {
3298                 my $commit = $revlist[$i];
3299                 my %co = parse_commit($commit);
3300                 # we read 150, we always show 30 and the ones more recent than 48 hours
3301                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3302                         last;
3303                 }
3304                 my %cd = parse_date($co{'committer_epoch'});
3305                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3306                         $co{'parent'}, $co{'id'}
3307                         or next;
3308                 my @difftree = map { chomp; $_ } <$fd>;
3309                 close $fd
3310                         or next;
3311                 print "<item>\n" .
3312                       "<title>" .
3313                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3314                       "</title>\n" .
3315                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3316                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3317                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3318                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3319                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3320                       "<content:encoded>" .
3321                       "<![CDATA[\n";
3322                 my $comment = $co{'comment'};
3323                 foreach my $line (@$comment) {
3324                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3325                         print "$line<br/>\n";
3326                 }
3327                 print "<br/>\n";
3328                 foreach my $line (@difftree) {
3329                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3330                                 next;
3331                         }
3332                         my $file = validate_input(unquote($7));
3333                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3334                         print "$file<br/>\n";
3335                 }
3336                 print "]]>\n" .
3337                       "</content:encoded>\n" .
3338                       "</item>\n";
3339         }
3340         print "</channel></rss>";
3341 }
3342
3343 sub git_opml {
3344         my @list = git_get_projects_list();
3345
3346         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3347         print <<XML;
3348 <?xml version="1.0" encoding="utf-8"?>
3349 <opml version="1.0">
3350 <head>
3351   <title>$site_name Git OPML Export</title>
3352 </head>
3353 <body>
3354 <outline text="git RSS feeds">
3355 XML
3356
3357         foreach my $pr (@list) {
3358                 my %proj = %$pr;
3359                 my $head = git_get_head_hash($proj{'path'});
3360                 if (!defined $head) {
3361                         next;
3362                 }
3363                 $git_dir = "$projectroot/$proj{'path'}";
3364                 my %co = parse_commit($head);
3365                 if (!%co) {
3366                         next;
3367                 }
3368
3369                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3370                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3371                 my $html = "$my_url?p=$proj{'path'};a=summary";
3372                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3373         }
3374         print <<XML;
3375 </outline>
3376 </body>
3377 </opml>
3378 XML
3379 }