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