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