git.oblomov.eu Git - git/blob - gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 binmode STDOUT, ':utf8';
  19
  20 our $cgi = new CGI;
  21 our $version = "++GIT_VERSION++";
  22 our $my_url = $cgi->url();
  23 our $my_uri = $cgi->url(-absolute => 1);
  24
  25 # core git executable to use
  26 # this can just be "git" if your webserver has a sensible PATH
  27 our $GIT = "++GIT_BINDIR++/git";
  28
  29 # absolute fs-path which will be prepended to the project path
  30 #our $projectroot = "/pub/scm";
  31 our $projectroot = "++GITWEB_PROJECTROOT++";
  32
  33 # location for temporary files needed for diffs
  34 our $git_temp = "/tmp/gitweb";
  35
  36 # target of the home link on top of all pages
  37 our $home_link = $my_uri || "/";
  38
  39 # string of the home link on top of all pages
  40 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  41
  42 # name of your site or organization to appear in page titles
  43 # replace this with something more descriptive for clearer bookmarks
  44 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  45
  46 # html text to include at home page
  47 our $home_text = "++GITWEB_HOMETEXT++";
  48
  49 # URI of default stylesheet
  50 our $stylesheet = "++GITWEB_CSS++";
  51 # URI of GIT logo
  52 our $logo = "++GITWEB_LOGO++";
  53
  54 # source of projects list
  55 our $projects_list = "++GITWEB_LIST++";
  56
  57 # list of git base URLs used for URL to where fetch project from,
  58 # i.e. full URL is "$git_base_url/$project"
  59 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  60
  61 # default blob_plain mimetype and default charset for text/plain blob
  62 our $default_blob_plain_mimetype = 'text/plain';
  63 our $default_text_plain_charset  = undef;
  64
  65 # file to use for guessing MIME types before trying /etc/mime.types
  66 # (relative to the current git repository)
  67 our $mimetypes_file = undef;
  68
  69 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
  70 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
  71
  72 # version of the core git binary
  73 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  74
  75 $projects_list ||= $projectroot;
  76 if (! -d $git_temp) {
  77         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
  78 }
  79
  80 # ======================================================================
  81 # input validation and dispatch
  82 our $action = $cgi->param('a');
  83 if (defined $action) {
  84         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  85                 die_error(undef, "Invalid action parameter");
  86         }
  87         # action which does not check rest of parameters
  88         if ($action eq "opml") {
  89                 git_opml();
  90                 exit;
  91         }
  92 }
  93
  94 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  95 if (defined $project) {
  96         $project =~ s|^/||;
  97         $project =~ s|/$||;
  98         $project = undef unless $project;
  99 }
 100 if (defined $project) {
 101         if (!validate_input($project)) {
 102                 die_error(undef, "Invalid project parameter");
 103         }
 104         if (!(-d "$projectroot/$project")) {
 105                 die_error(undef, "No such directory");
 106         }
 107         if (!(-e "$projectroot/$project/HEAD")) {
 108                 die_error(undef, "No such project");
 109         }
 110         $ENV{'GIT_DIR'} = "$projectroot/$project";
 111 } else {
 112         git_project_list();
 113         exit;
 114 }
 115
 116 our $file_name = $cgi->param('f');
 117 if (defined $file_name) {
 118         if (!validate_input($file_name)) {
 119                 die_error(undef, "Invalid file parameter");
 120         }
 121 }
 122
 123 our $file_parent = $cgi->param('fp');
 124 if (defined $file_parent) {
 125         if (!validate_input($file_parent)) {
 126                 die_error(undef, "Invalid file parent parameter");
 127         }
 128 }
 129
 130 our $hash = $cgi->param('h');
 131 if (defined $hash) {
 132         if (!validate_input($hash)) {
 133                 die_error(undef, "Invalid hash parameter");
 134         }
 135 }
 136
 137 our $hash_parent = $cgi->param('hp');
 138 if (defined $hash_parent) {
 139         if (!validate_input($hash_parent)) {
 140                 die_error(undef, "Invalid hash parent parameter");
 141         }
 142 }
 143
 144 our $hash_base = $cgi->param('hb');
 145 if (defined $hash_base) {
 146         if (!validate_input($hash_base)) {
 147                 die_error(undef, "Invalid hash base parameter");
 148         }
 149 }
 150
 151 our $page = $cgi->param('pg');
 152 if (defined $page) {
 153         if ($page =~ m/[^0-9]$/) {
 154                 die_error(undef, "Invalid page parameter");
 155         }
 156 }
 157
 158 our $searchtext = $cgi->param('s');
 159 if (defined $searchtext) {
 160         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 161                 die_error(undef, "Invalid search parameter");
 162         }
 163         $searchtext = quotemeta $searchtext;
 164 }
 165
 166 # dispatch
 167 my %actions = (
 168         "blame" => \&git_blame2,
 169         "blobdiff" => \&git_blobdiff,
 170         "blobdiff_plain" => \&git_blobdiff_plain,
 171         "blob" => \&git_blob,
 172         "blob_plain" => \&git_blob_plain,
 173         "commitdiff" => \&git_commitdiff,
 174         "commitdiff_plain" => \&git_commitdiff_plain,
 175         "commit" => \&git_commit,
 176         "heads" => \&git_heads,
 177         "history" => \&git_history,
 178         "log" => \&git_log,
 179         "rss" => \&git_rss,
 180         "search" => \&git_search,
 181         "shortlog" => \&git_shortlog,
 182         "summary" => \&git_summary,
 183         "tag" => \&git_tag,
 184         "tags" => \&git_tags,
 185         "tree" => \&git_tree,
 186 );
 187
 188 $action = 'summary' if (!defined($action));
 189 if (!defined($actions{$action})) {
 190         die_error(undef, "Unknown action");
 191 }
 192 $actions{$action}->();
 193 exit;
 194
 195 ## ======================================================================
 196 ## action links
 197
 198 sub href(%) {
 199         my %mapping = (
 200                 action => "a",
 201                 project => "p",
 202                 file_name => "f",
 203                 file_parent => "fp",
 204                 hash => "h",
 205                 hash_parent => "hp",
 206                 hash_base => "hb",
 207                 page => "pg",
 208                 searchtext => "s",
 209         );
 210
 211         my %params = @_;
 212         $params{"project"} ||= $project;
 213
 214         my $href = "$my_uri?";
 215         $href .= esc_param( join(";",
 216                 map {
 217                         "$mapping{$_}=$params{$_}" if defined $params{$_}
 218                 } keys %params
 219         ) );
 220
 221         return $href;
 222 }
 223
 224
 225 ## ======================================================================
 226 ## validation, quoting/unquoting and escaping
 227
 228 sub validate_input {
 229         my $input = shift;
 230
 231         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 232                 return $input;
 233         }
 234         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 235                 return undef;
 236         }
 237         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 238                 return undef;
 239         }
 240         return $input;
 241 }
 242
 243 # quote unsafe chars, but keep the slash, even when it's not
 244 # correct, but quoted slashes look too horrible in bookmarks
 245 sub esc_param {
 246         my $str = shift;
 247         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 248         $str =~ s/\+/%2B/g;
 249         $str =~ s/ /\+/g;
 250         return $str;
 251 }
 252
 253 # replace invalid utf8 character with SUBSTITUTION sequence
 254 sub esc_html {
 255         my $str = shift;
 256         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 257         $str = escapeHTML($str);
 258         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 259         return $str;
 260 }
 261
 262 # git may return quoted and escaped filenames
 263 sub unquote {
 264         my $str = shift;
 265         if ($str =~ m/^"(.*)"$/) {
 266                 $str = $1;
 267                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 268         }
 269         return $str;
 270 }
 271
 272 # escape tabs (convert tabs to spaces)
 273 sub untabify {
 274         my $line = shift;
 275
 276         while ((my $pos = index($line, "\t")) != -1) {
 277                 if (my $count = (8 - ($pos % 8))) {
 278                         my $spaces = ' ' x $count;
 279                         $line =~ s/\t/$spaces/;
 280                 }
 281         }
 282
 283         return $line;
 284 }
 285
 286 ## ----------------------------------------------------------------------
 287 ## HTML aware string manipulation
 288
 289 sub chop_str {
 290         my $str = shift;
 291         my $len = shift;
 292         my $add_len = shift || 10;
 293
 294         # allow only $len chars, but don't cut a word if it would fit in $add_len
 295         # if it doesn't fit, cut it if it's still longer than the dots we would add
 296         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 297         my $body = $1;
 298         my $tail = $2;
 299         if (length($tail) > 4) {
 300                 $tail = " ...";
 301                 $body =~ s/&[^;]*$//; # remove chopped character entities
 302         }
 303         return "$body$tail";
 304 }
 305
 306 ## ----------------------------------------------------------------------
 307 ## functions returning short strings
 308
 309 # CSS class for given age value (in seconds)
 310 sub age_class {
 311         my $age = shift;
 312
 313         if ($age < 60*60*2) {
 314                 return "age0";
 315         } elsif ($age < 60*60*24*2) {
 316                 return "age1";
 317         } else {
 318                 return "age2";
 319         }
 320 }
 321
 322 # convert age in seconds to "nn units ago" string
 323 sub age_string {
 324         my $age = shift;
 325         my $age_str;
 326
 327         if ($age > 60*60*24*365*2) {
 328                 $age_str = (int $age/60/60/24/365);
 329                 $age_str .= " years ago";
 330         } elsif ($age > 60*60*24*(365/12)*2) {
 331                 $age_str = int $age/60/60/24/(365/12);
 332                 $age_str .= " months ago";
 333         } elsif ($age > 60*60*24*7*2) {
 334                 $age_str = int $age/60/60/24/7;
 335                 $age_str .= " weeks ago";
 336         } elsif ($age > 60*60*24*2) {
 337                 $age_str = int $age/60/60/24;
 338                 $age_str .= " days ago";
 339         } elsif ($age > 60*60*2) {
 340                 $age_str = int $age/60/60;
 341                 $age_str .= " hours ago";
 342         } elsif ($age > 60*2) {
 343                 $age_str = int $age/60;
 344                 $age_str .= " min ago";
 345         } elsif ($age > 2) {
 346                 $age_str = int $age;
 347                 $age_str .= " sec ago";
 348         } else {
 349                 $age_str .= " right now";
 350         }
 351         return $age_str;
 352 }
 353
 354 # convert file mode in octal to symbolic file mode string
 355 sub mode_str {
 356         my $mode = oct shift;
 357
 358         if (S_ISDIR($mode & S_IFMT)) {
 359                 return 'drwxr-xr-x';
 360         } elsif (S_ISLNK($mode)) {
 361                 return 'lrwxrwxrwx';
 362         } elsif (S_ISREG($mode)) {
 363                 # git cares only about the executable bit
 364                 if ($mode & S_IXUSR) {
 365                         return '-rwxr-xr-x';
 366                 } else {
 367                         return '-rw-r--r--';
 368                 };
 369         } else {
 370                 return '----------';
 371         }
 372 }
 373
 374 # convert file mode in octal to file type string
 375 sub file_type {
 376         my $mode = oct shift;
 377
 378         if (S_ISDIR($mode & S_IFMT)) {
 379                 return "directory";
 380         } elsif (S_ISLNK($mode)) {
 381                 return "symlink";
 382         } elsif (S_ISREG($mode)) {
 383                 return "file";
 384         } else {
 385                 return "unknown";
 386         }
 387 }
 388
 389 ## ----------------------------------------------------------------------
 390 ## functions returning short HTML fragments, or transforming HTML fragments
 391 ## which don't beling to other sections
 392
 393 # format line of commit message or tag comment
 394 sub format_log_line_html {
 395         my $line = shift;
 396
 397         $line = esc_html($line);
 398         $line =~ s/ /&nbsp;/g;
 399         if ($line =~ m/([0-9a-fA-F]{40})/) {
 400                 my $hash_text = $1;
 401                 if (git_get_type($hash_text) eq "commit") {
 402                         my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 403                         $line =~ s/$hash_text/$link/;
 404                 }
 405         }
 406         return $line;
 407 }
 408
 409 # format marker of refs pointing to given object
 410 sub format_ref_marker {
 411         my ($refs, $id) = @_;
 412         my $markers = '';
 413
 414         if (defined $refs->{$id}) {
 415                 foreach my $ref (@{$refs->{$id}}) {
 416                         my ($type, $name) = qw();
 417                         # e.g. tags/v2.6.11 or heads/next
 418                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 419                                 $type = $1;
 420                                 $name = $2;
 421                         } else {
 422                                 $type = "ref";
 423                                 $name = $ref;
 424                         }
 425
 426                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 427                 }
 428         }
 429
 430         if ($markers) {
 431                 return ' <span class="refs">'. $markers . '</span>';
 432         } else {
 433                 return "";
 434         }
 435 }
 436
 437 # format, perhaps shortened and with markers, title line
 438 sub format_subject_html {
 439         my ($long, $short, $href, $extra) = @_;
 440         $extra = '' unless defined($extra);
 441
 442         if (length($short) < length($long)) {
 443                 return $cgi->a({-href => $href, -class => "list",
 444                                 -title => $long},
 445                        esc_html($short) . $extra);
 446         } else {
 447                 return $cgi->a({-href => $href, -class => "list"},
 448                        esc_html($long)  . $extra);
 449         }
 450 }
 451
 452 ## ----------------------------------------------------------------------
 453 ## git utility subroutines, invoking git commands
 454
 455 # get HEAD ref of given project as hash
 456 sub git_get_head_hash {
 457         my $project = shift;
 458         my $oENV = $ENV{'GIT_DIR'};
 459         my $retval = undef;
 460         $ENV{'GIT_DIR'} = "$projectroot/$project";
 461         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 462                 my $head = <$fd>;
 463                 close $fd;
 464                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 465                         $retval = $1;
 466                 }
 467         }
 468         if (defined $oENV) {
 469                 $ENV{'GIT_DIR'} = $oENV;
 470         }
 471         return $retval;
 472 }
 473
 474 # get type of given object
 475 sub git_get_type {
 476         my $hash = shift;
 477
 478         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 479         my $type = <$fd>;
 480         close $fd or return;
 481         chomp $type;
 482         return $type;
 483 }
 484
 485 sub git_get_project_config {
 486         my $key = shift;
 487
 488         return unless ($key);
 489         $key =~ s/^gitweb\.//;
 490         return if ($key =~ m/\W/);
 491
 492         my $val = qx($GIT repo-config --get gitweb.$key);
 493         return ($val);
 494 }
 495
 496 sub git_get_project_config_bool {
 497         my $val = git_get_project_config (@_);
 498         if ($val and $val =~ m/true|yes|on/) {
 499                 return (1);
 500         }
 501         return; # implicit false
 502 }
 503
 504 # get hash of given path at given ref
 505 sub git_get_hash_by_path {
 506         my $base = shift;
 507         my $path = shift || return undef;
 508
 509         my $tree = $base;
 510
 511         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 512                 or die_error(undef, "Open git-ls-tree failed");
 513         my $line = <$fd>;
 514         close $fd or return undef;
 515
 516         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 517         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 518         return $3;
 519 }
 520
 521 ## ......................................................................
 522 ## git utility functions, directly accessing git repository
 523
 524 # assumes that PATH is not symref
 525 sub git_get_hash_by_ref {
 526         my $path = shift;
 527
 528         open my $fd, "$projectroot/$path" or return undef;
 529         my $head = <$fd>;
 530         close $fd;
 531         chomp $head;
 532         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 533                 return $head;
 534         }
 535 }
 536
 537 sub git_get_project_description {
 538         my $path = shift;
 539
 540         open my $fd, "$projectroot/$path/description" or return undef;
 541         my $descr = <$fd>;
 542         close $fd;
 543         chomp $descr;
 544         return $descr;
 545 }
 546
 547 sub git_get_project_url_list {
 548         my $path = shift;
 549
 550         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 551         my @git_project_url_list = map { chomp; $_ } <$fd>;
 552         close $fd;
 553
 554         return wantarray ? @git_project_url_list : \@git_project_url_list;
 555 }
 556
 557 sub git_get_projects_list {
 558         my @list;
 559
 560         if (-d $projects_list) {
 561                 # search in directory
 562                 my $dir = $projects_list;
 563                 opendir my ($dh), $dir or return undef;
 564                 while (my $dir = readdir($dh)) {
 565                         if (-e "$projectroot/$dir/HEAD") {
 566                                 my $pr = {
 567                                         path => $dir,
 568                                 };
 569                                 push @list, $pr
 570                         }
 571                 }
 572                 closedir($dh);
 573         } elsif (-f $projects_list) {
 574                 # read from file(url-encoded):
 575                 # 'git%2Fgit.git Linus+Torvalds'
 576                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 577                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 578                 open my ($fd), $projects_list or return undef;
 579                 while (my $line = <$fd>) {
 580                         chomp $line;
 581                         my ($path, $owner) = split ' ', $line;
 582                         $path = unescape($path);
 583                         $owner = unescape($owner);
 584                         if (!defined $path) {
 585                                 next;
 586                         }
 587                         if (-e "$projectroot/$path/HEAD") {
 588                                 my $pr = {
 589                                         path => $path,
 590                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 591                                 };
 592                                 push @list, $pr
 593                         }
 594                 }
 595                 close $fd;
 596         }
 597         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 598         return @list;
 599 }
 600
 601 sub git_get_project_owner {
 602         my $project = shift;
 603         my $owner;
 604
 605         return undef unless $project;
 606
 607         # read from file (url-encoded):
 608         # 'git%2Fgit.git Linus+Torvalds'
 609         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 610         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 611         if (-f $projects_list) {
 612                 open (my $fd , $projects_list);
 613                 while (my $line = <$fd>) {
 614                         chomp $line;
 615                         my ($pr, $ow) = split ' ', $line;
 616                         $pr = unescape($pr);
 617                         $ow = unescape($ow);
 618                         if ($pr eq $project) {
 619                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 620                                 last;
 621                         }
 622                 }
 623                 close $fd;
 624         }
 625         if (!defined $owner) {
 626                 $owner = get_file_owner("$projectroot/$project");
 627         }
 628
 629         return $owner;
 630 }
 631
 632 sub git_get_references {
 633         my $type = shift || "";
 634         my %refs;
 635         my $fd;
 636         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 637         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 638         if (-f "$projectroot/$project/info/refs") {
 639                 open $fd, "$projectroot/$project/info/refs"
 640                         or return;
 641         } else {
 642                 open $fd, "-|", $GIT, "ls-remote", "."
 643                         or return;
 644         }
 645
 646         while (my $line = <$fd>) {
 647                 chomp $line;
 648                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 649                         if (defined $refs{$1}) {
 650                                 push @{$refs{$1}}, $2;
 651                         } else {
 652                                 $refs{$1} = [ $2 ];
 653                         }
 654                 }
 655         }
 656         close $fd or return;
 657         return \%refs;
 658 }
 659
 660 ## ----------------------------------------------------------------------
 661 ## parse to hash functions
 662
 663 sub parse_date {
 664         my $epoch = shift;
 665         my $tz = shift || "-0000";
 666
 667         my %date;
 668         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 669         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 670         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 671         $date{'hour'} = $hour;
 672         $date{'minute'} = $min;
 673         $date{'mday'} = $mday;
 674         $date{'day'} = $days[$wday];
 675         $date{'month'} = $months[$mon];
 676         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 677         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 678
 679         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 680         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 681         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 682         $date{'hour_local'} = $hour;
 683         $date{'minute_local'} = $min;
 684         $date{'tz_local'} = $tz;
 685         return %date;
 686 }
 687
 688 sub parse_tag {
 689         my $tag_id = shift;
 690         my %tag;
 691         my @comment;
 692
 693         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 694         $tag{'id'} = $tag_id;
 695         while (my $line = <$fd>) {
 696                 chomp $line;
 697                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 698                         $tag{'object'} = $1;
 699                 } elsif ($line =~ m/^type (.+)$/) {
 700                         $tag{'type'} = $1;
 701                 } elsif ($line =~ m/^tag (.+)$/) {
 702                         $tag{'name'} = $1;
 703                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 704                         $tag{'author'} = $1;
 705                         $tag{'epoch'} = $2;
 706                         $tag{'tz'} = $3;
 707                 } elsif ($line =~ m/--BEGIN/) {
 708                         push @comment, $line;
 709                         last;
 710                 } elsif ($line eq "") {
 711                         last;
 712                 }
 713         }
 714         push @comment, <$fd>;
 715         $tag{'comment'} = \@comment;
 716         close $fd or return;
 717         if (!defined $tag{'name'}) {
 718                 return
 719         };
 720         return %tag
 721 }
 722
 723 sub parse_commit {
 724         my $commit_id = shift;
 725         my $commit_text = shift;
 726
 727         my @commit_lines;
 728         my %co;
 729
 730         if (defined $commit_text) {
 731                 @commit_lines = @$commit_text;
 732         } else {
 733                 $/ = "\0";
 734                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 735                 @commit_lines = split '\n', <$fd>;
 736                 close $fd or return;
 737                 $/ = "\n";
 738                 pop @commit_lines;
 739         }
 740         my $header = shift @commit_lines;
 741         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 742                 return;
 743         }
 744         ($co{'id'}, my @parents) = split ' ', $header;
 745         $co{'parents'} = \@parents;
 746         $co{'parent'} = $parents[0];
 747         while (my $line = shift @commit_lines) {
 748                 last if $line eq "\n";
 749                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 750                         $co{'tree'} = $1;
 751                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 752                         $co{'author'} = $1;
 753                         $co{'author_epoch'} = $2;
 754                         $co{'author_tz'} = $3;
 755                         if ($co{'author'} =~ m/^([^<]+) </) {
 756                                 $co{'author_name'} = $1;
 757                         } else {
 758                                 $co{'author_name'} = $co{'author'};
 759                         }
 760                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 761                         $co{'committer'} = $1;
 762                         $co{'committer_epoch'} = $2;
 763                         $co{'committer_tz'} = $3;
 764                         $co{'committer_name'} = $co{'committer'};
 765                         $co{'committer_name'} =~ s/ <.*//;
 766                 }
 767         }
 768         if (!defined $co{'tree'}) {
 769                 return;
 770         };
 771
 772         foreach my $title (@commit_lines) {
 773                 $title =~ s/^    //;
 774                 if ($title ne "") {
 775                         $co{'title'} = chop_str($title, 80, 5);
 776                         # remove leading stuff of merges to make the interesting part visible
 777                         if (length($title) > 50) {
 778                                 $title =~ s/^Automatic //;
 779                                 $title =~ s/^merge (of|with) /Merge ... /i;
 780                                 if (length($title) > 50) {
 781                                         $title =~ s/(http|rsync):\/\///;
 782                                 }
 783                                 if (length($title) > 50) {
 784                                         $title =~ s/(master|www|rsync)\.//;
 785                                 }
 786                                 if (length($title) > 50) {
 787                                         $title =~ s/kernel.org:?//;
 788                                 }
 789                                 if (length($title) > 50) {
 790                                         $title =~ s/\/pub\/scm//;
 791                                 }
 792                         }
 793                         $co{'title_short'} = chop_str($title, 50, 5);
 794                         last;
 795                 }
 796         }
 797         # remove added spaces
 798         foreach my $line (@commit_lines) {
 799                 $line =~ s/^    //;
 800         }
 801         $co{'comment'} = \@commit_lines;
 802
 803         my $age = time - $co{'committer_epoch'};
 804         $co{'age'} = $age;
 805         $co{'age_string'} = age_string($age);
 806         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 807         if ($age > 60*60*24*7*2) {
 808                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 809                 $co{'age_string_age'} = $co{'age_string'};
 810         } else {
 811                 $co{'age_string_date'} = $co{'age_string'};
 812                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 813         }
 814         return %co;
 815 }
 816
 817 # parse ref from ref_file, given by ref_id, with given type
 818 sub parse_ref {
 819         my $ref_file = shift;
 820         my $ref_id = shift;
 821         my $type = shift || git_get_type($ref_id);
 822         my %ref_item;
 823
 824         $ref_item{'type'} = $type;
 825         $ref_item{'id'} = $ref_id;
 826         $ref_item{'epoch'} = 0;
 827         $ref_item{'age'} = "unknown";
 828         if ($type eq "tag") {
 829                 my %tag = parse_tag($ref_id);
 830                 $ref_item{'comment'} = $tag{'comment'};
 831                 if ($tag{'type'} eq "commit") {
 832                         my %co = parse_commit($tag{'object'});
 833                         $ref_item{'epoch'} = $co{'committer_epoch'};
 834                         $ref_item{'age'} = $co{'age_string'};
 835                 } elsif (defined($tag{'epoch'})) {
 836                         my $age = time - $tag{'epoch'};
 837                         $ref_item{'epoch'} = $tag{'epoch'};
 838                         $ref_item{'age'} = age_string($age);
 839                 }
 840                 $ref_item{'reftype'} = $tag{'type'};
 841                 $ref_item{'name'} = $tag{'name'};
 842                 $ref_item{'refid'} = $tag{'object'};
 843         } elsif ($type eq "commit"){
 844                 my %co = parse_commit($ref_id);
 845                 $ref_item{'reftype'} = "commit";
 846                 $ref_item{'name'} = $ref_file;
 847                 $ref_item{'title'} = $co{'title'};
 848                 $ref_item{'refid'} = $ref_id;
 849                 $ref_item{'epoch'} = $co{'committer_epoch'};
 850                 $ref_item{'age'} = $co{'age_string'};
 851         } else {
 852                 $ref_item{'reftype'} = $type;
 853                 $ref_item{'name'} = $ref_file;
 854                 $ref_item{'refid'} = $ref_id;
 855         }
 856
 857         return %ref_item;
 858 }
 859
 860 ## ......................................................................
 861 ## parse to array of hashes functions
 862
 863 sub git_get_refs_list {
 864         my $ref_dir = shift;
 865         my @reflist;
 866
 867         my @refs;
 868         my $pfxlen = length("$projectroot/$project/$ref_dir");
 869         File::Find::find(sub {
 870                 return if (/^\./);
 871                 if (-f $_) {
 872                         push @refs, substr($File::Find::name, $pfxlen + 1);
 873                 }
 874         }, "$projectroot/$project/$ref_dir");
 875
 876         foreach my $ref_file (@refs) {
 877                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 878                 my $type = git_get_type($ref_id) || next;
 879                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
 880
 881                 push @reflist, \%ref_item;
 882         }
 883         # sort refs by age
 884         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 885         return \@reflist;
 886 }
 887
 888 ## ----------------------------------------------------------------------
 889 ## filesystem-related functions
 890
 891 sub get_file_owner {
 892         my $path = shift;
 893
 894         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 895         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 896         if (!defined $gcos) {
 897                 return undef;
 898         }
 899         my $owner = $gcos;
 900         $owner =~ s/[,;].*$//;
 901         return decode("utf8", $owner, Encode::FB_DEFAULT);
 902 }
 903
 904 ## ......................................................................
 905 ## mimetype related functions
 906
 907 sub mimetype_guess_file {
 908         my $filename = shift;
 909         my $mimemap = shift;
 910         -r $mimemap or return undef;
 911
 912         my %mimemap;
 913         open(MIME, $mimemap) or return undef;
 914         while (<MIME>) {
 915                 next if m/^#/; # skip comments
 916                 my ($mime, $exts) = split(/\t+/);
 917                 if (defined $exts) {
 918                         my @exts = split(/\s+/, $exts);
 919                         foreach my $ext (@exts) {
 920                                 $mimemap{$ext} = $mime;
 921                         }
 922                 }
 923         }
 924         close(MIME);
 925
 926         $filename =~ /\.(.*?)$/;
 927         return $mimemap{$1};
 928 }
 929
 930 sub mimetype_guess {
 931         my $filename = shift;
 932         my $mime;
 933         $filename =~ /\./ or return undef;
 934
 935         if ($mimetypes_file) {
 936                 my $file = $mimetypes_file;
 937                 if ($file !~ m!^/!) { # if it is relative path
 938                         # it is relative to project
 939                         $file = "$projectroot/$project/$file";
 940                 }
 941                 $mime = mimetype_guess_file($filename, $file);
 942         }
 943         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
 944         return $mime;
 945 }
 946
 947 sub blob_mimetype {
 948         my $fd = shift;
 949         my $filename = shift;
 950
 951         if ($filename) {
 952                 my $mime = mimetype_guess($filename);
 953                 $mime and return $mime;
 954         }
 955
 956         # just in case
 957         return $default_blob_plain_mimetype unless $fd;
 958
 959         if (-T $fd) {
 960                 return 'text/plain' .
 961                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
 962         } elsif (! $filename) {
 963                 return 'application/octet-stream';
 964         } elsif ($filename =~ m/\.png$/i) {
 965                 return 'image/png';
 966         } elsif ($filename =~ m/\.gif$/i) {
 967                 return 'image/gif';
 968         } elsif ($filename =~ m/\.jpe?g$/i) {
 969                 return 'image/jpeg';
 970         } else {
 971                 return 'application/octet-stream';
 972         }
 973 }
 974
 975 ## ======================================================================
 976 ## functions printing HTML: header, footer, error page
 977
 978 sub git_header_html {
 979         my $status = shift || "200 OK";
 980         my $expires = shift;
 981
 982         my $title = "$site_name git";
 983         if (defined $project) {
 984                 $title .= " - $project";
 985                 if (defined $action) {
 986                         $title .= "/$action";
 987                         if (defined $file_name) {
 988                                 $title .= " - $file_name";
 989                                 if ($action eq "tree" && $file_name !~ m|/$|) {
 990                                         $title .= "/";
 991                                 }
 992                         }
 993                 }
 994         }
 995         my $content_type;
 996         # require explicit support from the UA if we are to send the page as
 997         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 998         # we have to do this because MSIE sometimes globs '*/*', pretending to
 999         # support xhtml+xml but choking when it gets what it asked for.
1000         if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
1001                 $content_type = 'application/xhtml+xml';
1002         } else {
1003                 $content_type = 'text/html';
1004         }
1005         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
1006         print <<EOF;
1007 <?xml version="1.0" encoding="utf-8"?>
1008 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1009 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1010 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1011 <!-- git core binaries version $git_version -->
1012 <head>
1013 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1014 <meta name="generator" content="gitweb/$version git/$git_version"/>
1015 <meta name="robots" content="index, nofollow"/>
1016 <title>$title</title>
1017 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1018 EOF
1019         if (defined $project) {
1020                 printf('<link rel="alternate" title="%s log" '.
1021                        'href="%s" type="application/rss+xml"/>'."\n",
1022                        esc_param($project), href(action=>"rss"));
1023         }
1024
1025         print "</head>\n" .
1026               "<body>\n" .
1027               "<div class=\"page_header\">\n" .
1028               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1029               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1030               "</a>\n";
1031         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1032         if (defined $project) {
1033                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1034                 if (defined $action) {
1035                         print " / $action";
1036                 }
1037                 print "\n";
1038                 if (!defined $searchtext) {
1039                         $searchtext = "";
1040                 }
1041                 my $search_hash;
1042                 if (defined $hash_base) {
1043                         $search_hash = $hash_base;
1044                 } elsif (defined $hash) {
1045                         $search_hash = $hash;
1046                 } else {
1047                         $search_hash = "HEAD";
1048                 }
1049                 $cgi->param("a", "search");
1050                 $cgi->param("h", $search_hash);
1051                 print $cgi->startform(-method => "get", -action => $my_uri) .
1052                       "<div class=\"search\">\n" .
1053                       $cgi->hidden(-name => "p") . "\n" .
1054                       $cgi->hidden(-name => "a") . "\n" .
1055                       $cgi->hidden(-name => "h") . "\n" .
1056                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1057                       "</div>" .
1058                       $cgi->end_form() . "\n";
1059         }
1060         print "</div>\n";
1061 }
1062
1063 sub git_footer_html {
1064         print "<div class=\"page_footer\">\n";
1065         if (defined $project) {
1066                 my $descr = git_get_project_description($project);
1067                 if (defined $descr) {
1068                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1069                 }
1070                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1071         } else {
1072                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1073         }
1074         print "</div>\n" .
1075               "</body>\n" .
1076               "</html>";
1077 }
1078
1079 sub die_error {
1080         my $status = shift || "403 Forbidden";
1081         my $error = shift || "Malformed query, file missing or permission denied";
1082
1083         git_header_html($status);
1084         print "<div class=\"page_body\">\n" .
1085               "<br/><br/>\n" .
1086               "$status - $error\n" .
1087               "<br/>\n" .
1088               "</div>\n";
1089         git_footer_html();
1090         exit;
1091 }
1092
1093 ## ----------------------------------------------------------------------
1094 ## functions printing or outputting HTML: navigation
1095
1096 sub git_print_page_nav {
1097         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1098         $extra = '' if !defined $extra; # pager or formats
1099
1100         my @navs = qw(summary shortlog log commit commitdiff tree);
1101         if ($suppress) {
1102                 @navs = grep { $_ ne $suppress } @navs;
1103         }
1104
1105         my %arg = map { $_ => {action=>$_} } @navs;
1106         if (defined $head) {
1107                 for (qw(commit commitdiff)) {
1108                         $arg{$_}{hash} = $head;
1109                 }
1110                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1111                         for (qw(shortlog log)) {
1112                                 $arg{$_}{hash} = $head;
1113                         }
1114                 }
1115         }
1116         $arg{tree}{hash} = $treehead if defined $treehead;
1117         $arg{tree}{hash_base} = $treebase if defined $treebase;
1118
1119         print "<div class=\"page_nav\">\n" .
1120                 (join " | ",
1121                  map { $_ eq $current ?
1122                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1123                  } @navs);
1124         print "<br/>\n$extra<br/>\n" .
1125               "</div>\n";
1126 }
1127
1128 sub format_paging_nav {
1129         my ($action, $hash, $head, $page, $nrevs) = @_;
1130         my $paging_nav;
1131
1132
1133         if ($hash ne $head || $page) {
1134                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1135         } else {
1136                 $paging_nav .= "HEAD";
1137         }
1138
1139         if ($page > 0) {
1140                 $paging_nav .= " &sdot; " .
1141                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1142                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1143         } else {
1144                 $paging_nav .= " &sdot; prev";
1145         }
1146
1147         if ($nrevs >= (100 * ($page+1)-1)) {
1148                 $paging_nav .= " &sdot; " .
1149                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1150                                  -accesskey => "n", -title => "Alt-n"}, "next");
1151         } else {
1152                 $paging_nav .= " &sdot; next";
1153         }
1154
1155         return $paging_nav;
1156 }
1157
1158 ## ......................................................................
1159 ## functions printing or outputting HTML: div
1160
1161 sub git_print_header_div {
1162         my ($action, $title, $hash, $hash_base) = @_;
1163         my %args = ();
1164
1165         $args{action} = $action;
1166         $args{hash} = $hash if $hash;
1167         $args{hash_base} = $hash_base if $hash_base;
1168
1169         print "<div class=\"header\">\n" .
1170               $cgi->a({-href => href(%args), -class => "title"},
1171               $title ? $title : $action) .
1172               "\n</div>\n";
1173 }
1174
1175 sub git_print_page_path {
1176         my $name = shift;
1177         my $type = shift;
1178
1179         if (!defined $name) {
1180                 print "<div class=\"page_path\"><b>/</b></div>\n";
1181         } elsif (defined $type && $type eq 'blob') {
1182                 print "<div class=\"page_path\"><b>" .
1183                         $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
1184         } else {
1185                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1186         }
1187 }
1188
1189 sub git_print_log {
1190         my $log = shift;
1191
1192         # remove leading empty lines
1193         while (defined $log->[0] && $log->[0] eq "") {
1194                 shift @$log;
1195         }
1196
1197         # print log
1198         my $signoff = 0;
1199         my $empty = 0;
1200         foreach my $line (@$log) {
1201                 # print only one empty line
1202                 # do not print empty line after signoff
1203                 if ($line eq "") {
1204                         next if ($empty || $signoff);
1205                         $empty = 1;
1206                 } else {
1207                         $empty = 0;
1208                 }
1209                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1210                         $signoff = 1;
1211                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1212                 } else {
1213                         $signoff = 0;
1214                         print format_log_line_html($line) . "<br/>\n";
1215                 }
1216         }
1217 }
1218
1219 sub git_print_simplified_log {
1220         my $log = shift;
1221         my $remove_title = shift;
1222
1223         shift @$log if $remove_title;
1224         # remove leading empty lines
1225         while (defined $log->[0] && $log->[0] eq "") {
1226                 shift @$log;
1227         }
1228
1229         # simplify and print log
1230         my $empty = 0;
1231         foreach my $line (@$log) {
1232                 # remove signoff lines
1233                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1234                         next;
1235                 }
1236                 # print only one empty line
1237                 if ($line eq "") {
1238                         next if $empty;
1239                         $empty = 1;
1240                 } else {
1241                         $empty = 0;
1242                 }
1243                 print format_log_line_html($line) . "<br/>\n";
1244         }
1245         # end with single empty line
1246         print "<br/>\n" unless $empty;
1247 }
1248
1249 ## ......................................................................
1250 ## functions printing large fragments of HTML
1251
1252 sub git_difftree_body {
1253         my ($difftree, $parent) = @_;
1254
1255         print "<div class=\"list_head\">\n";
1256         if ($#{$difftree} > 10) {
1257                 print(($#{$difftree} + 1) . " files changed:\n");
1258         }
1259         print "</div>\n";
1260
1261         print "<table class=\"diff_tree\">\n";
1262         my $alternate = 0;
1263         foreach my $line (@{$difftree}) {
1264                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1265                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1266                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1267                         next;
1268                 }
1269                 my $from_mode = $1;
1270                 my $to_mode = $2;
1271                 my $from_id = $3;
1272                 my $to_id = $4;
1273                 my $status = $5;
1274                 my $similarity = $6; # score
1275                 my $file = validate_input(unquote($7));
1276
1277                 if ($alternate) {
1278                         print "<tr class=\"dark\">\n";
1279                 } else {
1280                         print "<tr class=\"light\">\n";
1281                 }
1282                 $alternate ^= 1;
1283
1284                 if ($status eq "A") { # created
1285                         my $mode_chng = "";
1286                         if (S_ISREG(oct $to_mode)) {
1287                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1288                         }
1289                         print "<td>" .
1290                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1291                                       -class => "list"}, esc_html($file)) .
1292                               "</td>\n" .
1293                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1294                               "<td class=\"link\">" .
1295                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
1296                               "</td>\n";
1297
1298                 } elsif ($status eq "D") { # deleted
1299                         print "<td>" .
1300                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
1301                                        -class => "list"}, esc_html($file)) . "</td>\n" .
1302                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1303                               "<td class=\"link\">" .
1304                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
1305                               $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
1306                               "</td>\n"
1307
1308                 } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
1309                         my $mode_chnge = "";
1310                         if ($from_mode != $to_mode) {
1311                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
1312                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1313                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1314                                 }
1315                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1316                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1317                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1318                                         } elsif (S_ISREG($to_mode)) {
1319                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1320                                         }
1321                                 }
1322                                 $mode_chnge .= "]</span>\n";
1323                         }
1324                         print "<td>";
1325                         if ($to_id ne $from_id) { # modified
1326                                 print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
1327                                               -class => "list"}, esc_html($file));
1328                         } else { # mode changed
1329                                 print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1330                                               -class => "list"}, esc_html($file));
1331                         }
1332                         print "</td>\n" .
1333                               "<td>$mode_chnge</td>\n" .
1334                               "<td class=\"link\">" .
1335                                 $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
1336                         if ($to_id ne $from_id) { # modified
1337                                 print " | " . $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
1338                         }
1339                         print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
1340                         print "</td>\n";
1341
1342                 } elsif ($status eq "R") { # renamed
1343                         my ($from_file, $to_file) = split "\t", $file;
1344                         my $mode_chng = "";
1345                         if ($from_mode != $to_mode) {
1346                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1347                         }
1348                         print "<td>" .
1349                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1350                                       -class => "list"}, esc_html($to_file)) . "</td>\n" .
1351                               "<td><span class=\"file_status moved\">[moved from " .
1352                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1353                                       -class => "list"}, esc_html($from_file)) .
1354                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1355                               "<td class=\"link\">" .
1356                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1357                         if ($to_id ne $from_id) {
1358                                 print " | " .
1359                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1360                         }
1361                         print "</td>\n";
1362
1363                 } elsif ($status eq "C") { # copied
1364                         my ($from_file, $to_file) = split "\t", $file;
1365                         my $mode_chng = "";
1366                         if ($from_mode != $to_mode) {
1367                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1368                         }
1369                         print "<td>" .
1370                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1371                                       -class => "list"}, esc_html($to_file)) . "</td>\n" .
1372                               "<td><span class=\"file_status copied\">[copied from " .
1373                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1374                                       -class => "list"}, esc_html($from_file)) .
1375                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1376                               "<td class=\"link\">" .
1377                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1378                         if ($to_id ne $from_id) {
1379                                 print " | " .
1380                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1381                         }
1382                         print "</td>\n";
1383                 } # we should not encounter Unmerged (U) or Unknown (X) status
1384                 print "</tr>\n";
1385         }
1386         print "</table>\n";
1387 }
1388
1389 sub git_shortlog_body {
1390         # uses global variable $project
1391         my ($revlist, $from, $to, $refs, $extra) = @_;
1392         $from = 0 unless defined $from;
1393         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1394
1395         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1396         my $alternate = 0;
1397         for (my $i = $from; $i <= $to; $i++) {
1398                 my $commit = $revlist->[$i];
1399                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1400                 my $ref = format_ref_marker($refs, $commit);
1401                 my %co = parse_commit($commit);
1402                 if ($alternate) {
1403                         print "<tr class=\"dark\">\n";
1404                 } else {
1405                         print "<tr class=\"light\">\n";
1406                 }
1407                 $alternate ^= 1;
1408                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1409                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1410                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1411                       "<td>";
1412                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1413                 print "</td>\n" .
1414                       "<td class=\"link\">" .
1415                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1416                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
1417                       "</td>\n" .
1418                       "</tr>\n";
1419         }
1420         if (defined $extra) {
1421                 print "<tr>\n" .
1422                       "<td colspan=\"4\">$extra</td>\n" .
1423                       "</tr>\n";
1424         }
1425         print "</table>\n";
1426 }
1427
1428 sub git_history_body {
1429         # Warning: assumes constant type (blob or tree) during history
1430         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1431
1432         print "<table class=\"history\" cellspacing=\"0\">\n";
1433         my $alternate = 0;
1434         while (my $line = <$fd>) {
1435                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1436                         next;
1437                 }
1438
1439                 my $commit = $1;
1440                 my %co = parse_commit($commit);
1441                 if (!%co) {
1442                         next;
1443                 }
1444
1445                 my $ref = format_ref_marker($refs, $commit);
1446
1447                 if ($alternate) {
1448                         print "<tr class=\"dark\">\n";
1449                 } else {
1450                         print "<tr class=\"light\">\n";
1451                 }
1452                 $alternate ^= 1;
1453                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1454                       # shortlog uses      chop_str($co{'author_name'}, 10)
1455                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1456                       "<td>";
1457                 # originally git_history used chop_str($co{'title'}, 50)
1458                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1459                 print "</td>\n" .
1460                       "<td class=\"link\">" .
1461                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1462                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1463                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1464
1465                 if ($ftype eq 'blob') {
1466                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1467                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1468                         if (defined $blob_current && defined $blob_parent &&
1469                                         $blob_current ne $blob_parent) {
1470                                 print " | " .
1471                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1472                                                 "diff to current");
1473                         }
1474                 }
1475                 print "</td>\n" .
1476                       "</tr>\n";
1477         }
1478         if (defined $extra) {
1479                 print "<tr>\n" .
1480                       "<td colspan=\"4\">$extra</td>\n" .
1481                       "</tr>\n";
1482         }
1483         print "</table>\n";
1484 }
1485
1486 sub git_tags_body {
1487         # uses global variable $project
1488         my ($taglist, $from, $to, $extra) = @_;
1489         $from = 0 unless defined $from;
1490         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1491
1492         print "<table class=\"tags\" cellspacing=\"0\">\n";
1493         my $alternate = 0;
1494         for (my $i = $from; $i <= $to; $i++) {
1495                 my $entry = $taglist->[$i];
1496                 my %tag = %$entry;
1497                 my $comment_lines = $tag{'comment'};
1498                 my $comment = shift @$comment_lines;
1499                 my $comment_short;
1500                 if (defined $comment) {
1501                         $comment_short = chop_str($comment, 30, 5);
1502                 }
1503                 if ($alternate) {
1504                         print "<tr class=\"dark\">\n";
1505                 } else {
1506                         print "<tr class=\"light\">\n";
1507                 }
1508                 $alternate ^= 1;
1509                 print "<td><i>$tag{'age'}</i></td>\n" .
1510                       "<td>" .
1511                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1512                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1513                       "</td>\n" .
1514                       "<td>";
1515                 if (defined $comment) {
1516                         print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1517                 }
1518                 print "</td>\n" .
1519                       "<td class=\"selflink\">";
1520                 if ($tag{'type'} eq "tag") {
1521                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1522                 } else {
1523                         print "&nbsp;";
1524                 }
1525                 print "</td>\n" .
1526                       "<td class=\"link\">" . " | " .
1527                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1528                 if ($tag{'reftype'} eq "commit") {
1529                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1530                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1531                 } elsif ($tag{'reftype'} eq "blob") {
1532                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1533                 }
1534                 print "</td>\n" .
1535                       "</tr>";
1536         }
1537         if (defined $extra) {
1538                 print "<tr>\n" .
1539                       "<td colspan=\"5\">$extra</td>\n" .
1540                       "</tr>\n";
1541         }
1542         print "</table>\n";
1543 }
1544
1545 sub git_heads_body {
1546         # uses global variable $project
1547         my ($taglist, $head, $from, $to, $extra) = @_;
1548         $from = 0 unless defined $from;
1549         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1550
1551         print "<table class=\"heads\" cellspacing=\"0\">\n";
1552         my $alternate = 0;
1553         for (my $i = $from; $i <= $to; $i++) {
1554                 my $entry = $taglist->[$i];
1555                 my %tag = %$entry;
1556                 my $curr = $tag{'id'} eq $head;
1557                 if ($alternate) {
1558                         print "<tr class=\"dark\">\n";
1559                 } else {
1560                         print "<tr class=\"light\">\n";
1561                 }
1562                 $alternate ^= 1;
1563                 print "<td><i>$tag{'age'}</i></td>\n" .
1564                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1565                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1566                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1567                       "</td>\n" .
1568                       "<td class=\"link\">" .
1569                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1570                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1571                       "</td>\n" .
1572                       "</tr>";
1573         }
1574         if (defined $extra) {
1575                 print "<tr>\n" .
1576                       "<td colspan=\"3\">$extra</td>\n" .
1577                       "</tr>\n";
1578         }
1579         print "</table>\n";
1580 }
1581
1582 ## ----------------------------------------------------------------------
1583 ## functions printing large fragments, format as one of arguments
1584
1585 sub git_diff_print {
1586         my $from = shift;
1587         my $from_name = shift;
1588         my $to = shift;
1589         my $to_name = shift;
1590         my $format = shift || "html";
1591
1592         my $from_tmp = "/dev/null";
1593         my $to_tmp = "/dev/null";
1594         my $pid = $$;
1595
1596         # create tmp from-file
1597         if (defined $from) {
1598                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1599                 open my $fd2, "> $from_tmp";
1600                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1601                 my @file = <$fd>;
1602                 print $fd2 @file;
1603                 close $fd2;
1604                 close $fd;
1605         }
1606
1607         # create tmp to-file
1608         if (defined $to) {
1609                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1610                 open my $fd2, "> $to_tmp";
1611                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1612                 my @file = <$fd>;
1613                 print $fd2 @file;
1614                 close $fd2;
1615                 close $fd;
1616         }
1617
1618         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1619         if ($format eq "plain") {
1620                 undef $/;
1621                 print <$fd>;
1622                 $/ = "\n";
1623         } else {
1624                 while (my $line = <$fd>) {
1625                         chomp $line;
1626                         my $char = substr($line, 0, 1);
1627                         my $diff_class = "";
1628                         if ($char eq '+') {
1629                                 $diff_class = " add";
1630                         } elsif ($char eq "-") {
1631                                 $diff_class = " rem";
1632                         } elsif ($char eq "@") {
1633                                 $diff_class = " chunk_header";
1634                         } elsif ($char eq "\\") {
1635                                 # skip errors
1636                                 next;
1637                         }
1638                         $line = untabify($line);
1639                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1640                 }
1641         }
1642         close $fd;
1643
1644         if (defined $from) {
1645                 unlink($from_tmp);
1646         }
1647         if (defined $to) {
1648                 unlink($to_tmp);
1649         }
1650 }
1651
1652
1653 ## ======================================================================
1654 ## ======================================================================
1655 ## actions
1656
1657 sub git_project_list {
1658         my $order = $cgi->param('o');
1659         if (defined $order && $order !~ m/project|descr|owner|age/) {
1660                 die_error(undef, "Unknown order parameter");
1661         }
1662
1663         my @list = git_get_projects_list();
1664         my @projects;
1665         if (!@list) {
1666                 die_error(undef, "No projects found");
1667         }
1668         foreach my $pr (@list) {
1669                 my $head = git_get_head_hash($pr->{'path'});
1670                 if (!defined $head) {
1671                         next;
1672                 }
1673                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1674                 my %co = parse_commit($head);
1675                 if (!%co) {
1676                         next;
1677                 }
1678                 $pr->{'commit'} = \%co;
1679                 if (!defined $pr->{'descr'}) {
1680                         my $descr = git_get_project_description($pr->{'path'}) || "";
1681                         $pr->{'descr'} = chop_str($descr, 25, 5);
1682                 }
1683                 if (!defined $pr->{'owner'}) {
1684                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1685                 }
1686                 push @projects, $pr;
1687         }
1688
1689         git_header_html();
1690         if (-f $home_text) {
1691                 print "<div class=\"index_include\">\n";
1692                 open (my $fd, $home_text);
1693                 print <$fd>;
1694                 close $fd;
1695                 print "</div>\n";
1696         }
1697         print "<table class=\"project_list\">\n" .
1698               "<tr>\n";
1699         $order ||= "project";
1700         if ($order eq "project") {
1701                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1702                 print "<th>Project</th>\n";
1703         } else {
1704                 print "<th>" .
1705                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1706                                -class => "header"}, "Project") .
1707                       "</th>\n";
1708         }
1709         if ($order eq "descr") {
1710                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1711                 print "<th>Description</th>\n";
1712         } else {
1713                 print "<th>" .
1714                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1715                                -class => "header"}, "Description") .
1716                       "</th>\n";
1717         }
1718         if ($order eq "owner") {
1719                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1720                 print "<th>Owner</th>\n";
1721         } else {
1722                 print "<th>" .
1723                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1724                                -class => "header"}, "Owner") .
1725                       "</th>\n";
1726         }
1727         if ($order eq "age") {
1728                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1729                 print "<th>Last Change</th>\n";
1730         } else {
1731                 print "<th>" .
1732                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1733                                -class => "header"}, "Last Change") .
1734                       "</th>\n";
1735         }
1736         print "<th></th>\n" .
1737               "</tr>\n";
1738         my $alternate = 0;
1739         foreach my $pr (@projects) {
1740                 if ($alternate) {
1741                         print "<tr class=\"dark\">\n";
1742                 } else {
1743                         print "<tr class=\"light\">\n";
1744                 }
1745                 $alternate ^= 1;
1746                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
1747                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1748                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1749                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1750                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1751                       $pr->{'commit'}{'age_string'} . "</td>\n" .
1752                       "<td class=\"link\">" .
1753                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
1754                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
1755                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
1756                       "</td>\n" .
1757                       "</tr>\n";
1758         }
1759         print "</table>\n";
1760         git_footer_html();
1761 }
1762
1763 sub git_summary {
1764         my $descr = git_get_project_description($project) || "none";
1765         my $head = git_get_head_hash($project);
1766         my %co = parse_commit($head);
1767         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1768
1769         my $owner = git_get_project_owner($project);
1770
1771         my $refs = git_get_references();
1772         git_header_html();
1773         git_print_page_nav('summary','', $head);
1774
1775         print "<div class=\"title\">&nbsp;</div>\n";
1776         print "<table cellspacing=\"0\">\n" .
1777               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1778               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1779               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1780         # use per project git URL list in $projectroot/$project/cloneurl
1781         # or make project git URL from git base URL and project name
1782         my $url_tag = "URL";
1783         my @url_list = git_get_project_url_list($project);
1784         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1785         foreach my $git_url (@url_list) {
1786                 next unless $git_url;
1787                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1788                 $url_tag = "";
1789         }
1790         print "</table>\n";
1791
1792         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1793                 or die_error(undef, "Open git-rev-list failed");
1794         my @revlist = map { chomp; $_ } <$fd>;
1795         close $fd;
1796         git_print_header_div('shortlog');
1797         git_shortlog_body(\@revlist, 0, 15, $refs,
1798                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
1799
1800         my $taglist = git_get_refs_list("refs/tags");
1801         if (defined @$taglist) {
1802                 git_print_header_div('tags');
1803                 git_tags_body($taglist, 0, 15,
1804                               $cgi->a({-href => href(action=>"tags")}, "..."));
1805         }
1806
1807         my $headlist = git_get_refs_list("refs/heads");
1808         if (defined @$headlist) {
1809                 git_print_header_div('heads');
1810                 git_heads_body($headlist, $head, 0, 15,
1811                                $cgi->a({-href => href(action=>"heads")}, "..."));
1812         }
1813
1814         git_footer_html();
1815 }
1816
1817 sub git_tag {
1818         my $head = git_get_head_hash($project);
1819         git_header_html();
1820         git_print_page_nav('','', $head,undef,$head);
1821         my %tag = parse_tag($hash);
1822         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1823         print "<div class=\"title_text\">\n" .
1824               "<table cellspacing=\"0\">\n" .
1825               "<tr>\n" .
1826               "<td>object</td>\n" .
1827               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1828               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1829               "</tr>\n";
1830         if (defined($tag{'author'})) {
1831                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1832                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1833                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1834         }
1835         print "</table>\n\n" .
1836               "</div>\n";
1837         print "<div class=\"page_body\">";
1838         my $comment = $tag{'comment'};
1839         foreach my $line (@$comment) {
1840                 print esc_html($line) . "<br/>\n";
1841         }
1842         print "</div>\n";
1843         git_footer_html();
1844 }
1845
1846 sub git_blame2 {
1847         my $fd;
1848         my $ftype;
1849         die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
1850         die_error('404 Not Found', "File name not defined") if (!$file_name);
1851         $hash_base ||= git_get_head_hash($project);
1852         die_error(undef, "Couldn't find base commit") unless ($hash_base);
1853         my %co = parse_commit($hash_base)
1854                 or die_error(undef, "Reading commit failed");
1855         if (!defined $hash) {
1856                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1857                         or die_error(undef, "Error looking up file");
1858         }
1859         $ftype = git_get_type($hash);
1860         if ($ftype !~ "blob") {
1861                 die_error("400 Bad Request", "Object is not a blob");
1862         }
1863         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1864                 or die_error(undef, "Open git-blame failed");
1865         git_header_html();
1866         my $formats_nav =
1867                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1868                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1869         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1870         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1871         git_print_page_path($file_name, $ftype);
1872         my @rev_color = (qw(light2 dark2));
1873         my $num_colors = scalar(@rev_color);
1874         my $current_color = 0;
1875         my $last_rev;
1876         print "<div class=\"page_body\">\n";
1877         print "<table class=\"blame\">\n";
1878         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1879         while (<$fd>) {
1880                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1881                 my $full_rev = $1;
1882                 my $rev = substr($full_rev, 0, 8);
1883                 my $lineno = $2;
1884                 my $data = $3;
1885
1886                 if (!defined $last_rev) {
1887                         $last_rev = $full_rev;
1888                 } elsif ($last_rev ne $full_rev) {
1889                         $last_rev = $full_rev;
1890                         $current_color = ++$current_color % $num_colors;
1891                 }
1892                 print "<tr class=\"$rev_color[$current_color]\">\n";
1893                 print "<td class=\"sha1\">" .
1894                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
1895                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1896                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1897                 print "</tr>\n";
1898         }
1899         print "</table>\n";
1900         print "</div>";
1901         close $fd or print "Reading blob failed\n";
1902         git_footer_html();
1903 }
1904
1905 sub git_blame {
1906         my $fd;
1907         die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
1908         die_error('404 Not Found', "File name not defined") if (!$file_name);
1909         $hash_base ||= git_get_head_hash($project);
1910         die_error(undef, "Couldn't find base commit") unless ($hash_base);
1911         my %co = parse_commit($hash_base)
1912                 or die_error(undef, "Reading commit failed");
1913         if (!defined $hash) {
1914                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1915                         or die_error(undef, "Error lookup file");
1916         }
1917         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1918                 or die_error(undef, "Open git-annotate failed");
1919         git_header_html();
1920         my $formats_nav =
1921                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1922                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1923         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1924         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1925         git_print_page_path($file_name, 'blob');
1926         print "<div class=\"page_body\">\n";
1927         print <<HTML;
1928 <table class="blame">
1929   <tr>
1930     <th>Commit</th>
1931     <th>Age</th>
1932     <th>Author</th>
1933     <th>Line</th>
1934     <th>Data</th>
1935   </tr>
1936 HTML
1937         my @line_class = (qw(light dark));
1938         my $line_class_len = scalar (@line_class);
1939         my $line_class_num = $#line_class;
1940         while (my $line = <$fd>) {
1941                 my $long_rev;
1942                 my $short_rev;
1943                 my $author;
1944                 my $time;
1945                 my $lineno;
1946                 my $data;
1947                 my $age;
1948                 my $age_str;
1949                 my $age_class;
1950
1951                 chomp $line;
1952                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1953
1954                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1955                         $long_rev = $1;
1956                         $author   = $2;
1957                         $time     = $3;
1958                         $lineno   = $4;
1959                         $data     = $5;
1960                 } else {
1961                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1962                         next;
1963                 }
1964                 $short_rev  = substr ($long_rev, 0, 8);
1965                 $age        = time () - $time;
1966                 $age_str    = age_string ($age);
1967                 $age_str    =~ s/ /&nbsp;/g;
1968                 $age_class  = age_class($age);
1969                 $author     = esc_html ($author);
1970                 $author     =~ s/ /&nbsp;/g;
1971
1972                 $data = untabify($data);
1973                 $data = esc_html ($data);
1974
1975                 print <<HTML;
1976   <tr class="$line_class[$line_class_num]">
1977     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
1978     <td class="$age_class">$age_str</td>
1979     <td>$author</td>
1980     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1981     <td class="pre">$data</td>
1982   </tr>
1983 HTML
1984         } # while (my $line = <$fd>)
1985         print "</table>\n\n";
1986         close $fd or print "Reading blob failed.\n";
1987         print "</div>";
1988         git_footer_html();
1989 }
1990
1991 sub git_tags {
1992         my $head = git_get_head_hash($project);
1993         git_header_html();
1994         git_print_page_nav('','', $head,undef,$head);
1995         git_print_header_div('summary', $project);
1996
1997         my $taglist = git_get_refs_list("refs/tags");
1998         if (defined @$taglist) {
1999                 git_tags_body($taglist);
2000         }
2001         git_footer_html();
2002 }
2003
2004 sub git_heads {
2005         my $head = git_get_head_hash($project);
2006         git_header_html();
2007         git_print_page_nav('','', $head,undef,$head);
2008         git_print_header_div('summary', $project);
2009
2010         my $taglist = git_get_refs_list("refs/heads");
2011         if (defined @$taglist) {
2012                 git_heads_body($taglist, $head);
2013         }
2014         git_footer_html();
2015 }
2016
2017 sub git_blob_plain {
2018         if (!defined $hash) {
2019                 if (defined $file_name) {
2020                         my $base = $hash_base || git_get_head_hash($project);
2021                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2022                                 or die_error(undef, "Error lookup file");
2023                 } else {
2024                         die_error(undef, "No file name defined");
2025                 }
2026         }
2027         my $type = shift;
2028         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2029                 or die_error(undef, "Couldn't cat $file_name, $hash");
2030
2031         $type ||= blob_mimetype($fd, $file_name);
2032
2033         # save as filename, even when no $file_name is given
2034         my $save_as = "$hash";
2035         if (defined $file_name) {
2036                 $save_as = $file_name;
2037         } elsif ($type =~ m/^text\//) {
2038                 $save_as .= '.txt';
2039         }
2040
2041         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
2042         undef $/;
2043         binmode STDOUT, ':raw';
2044         print <$fd>;
2045         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2046         $/ = "\n";
2047         close $fd;
2048 }
2049
2050 sub git_blob {
2051         if (!defined $hash) {
2052                 if (defined $file_name) {
2053                         my $base = $hash_base || git_get_head_hash($project);
2054                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2055                                 or die_error(undef, "Error lookup file");
2056                 } else {
2057                         die_error(undef, "No file name defined");
2058                 }
2059         }
2060         my $have_blame = git_get_project_config_bool ('blame');
2061         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2062                 or die_error(undef, "Couldn't cat $file_name, $hash");
2063         my $mimetype = blob_mimetype($fd, $file_name);
2064         if ($mimetype !~ m/^text\//) {
2065                 close $fd;
2066                 return git_blob_plain($mimetype);
2067         }
2068         git_header_html();
2069         my $formats_nav = '';
2070         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2071                 if (defined $file_name) {
2072                         if ($have_blame) {
2073                                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2074                         }
2075                         $formats_nav .=
2076                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2077                                 " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2078                 } else {
2079                         $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2080                 }
2081                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2082                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2083         } else {
2084                 print "<div class=\"page_nav\">\n" .
2085                       "<br/><br/></div>\n" .
2086                       "<div class=\"title\">$hash</div>\n";
2087         }
2088         git_print_page_path($file_name, "blob");
2089         print "<div class=\"page_body\">\n";
2090         my $nr;
2091         while (my $line = <$fd>) {
2092                 chomp $line;
2093                 $nr++;
2094                 $line = untabify($line);
2095                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2096         }
2097         close $fd or print "Reading blob failed.\n";
2098         print "</div>";
2099         git_footer_html();
2100 }
2101
2102 sub git_tree {
2103         if (!defined $hash) {
2104                 $hash = git_get_head_hash($project);
2105                 if (defined $file_name) {
2106                         my $base = $hash_base || $hash;
2107                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2108                 }
2109                 if (!defined $hash_base) {
2110                         $hash_base = $hash;
2111                 }
2112         }
2113         $/ = "\0";
2114         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2115                 or die_error(undef, "Open git-ls-tree failed");
2116         my @entries = map { chomp; $_ } <$fd>;
2117         close $fd or die_error(undef, "Reading tree failed");
2118         $/ = "\n";
2119
2120         my $refs = git_get_references();
2121         my $ref = format_ref_marker($refs, $hash_base);
2122         git_header_html();
2123         my %base_key = ();
2124         my $base = "";
2125         my $have_blame = git_get_project_config_bool ('blame');
2126         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2127                 $base_key{hash_base} = $hash_base;
2128                 git_print_page_nav('tree','', $hash_base);
2129                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2130         } else {
2131                 print "<div class=\"page_nav\">\n";
2132                 print "<br/><br/></div>\n";
2133                 print "<div class=\"title\">$hash</div>\n";
2134         }
2135         if (defined $file_name) {
2136                 $base = esc_html("$file_name/");
2137         }
2138         git_print_page_path($file_name, 'tree');
2139         print "<div class=\"page_body\">\n";
2140         print "<table cellspacing=\"0\">\n";
2141         my $alternate = 0;
2142         foreach my $line (@entries) {
2143                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2144                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2145                 my $t_mode = $1;
2146                 my $t_type = $2;
2147                 my $t_hash = $3;
2148                 my $t_name = validate_input($4);
2149                 if ($alternate) {
2150                         print "<tr class=\"dark\">\n";
2151                 } else {
2152                         print "<tr class=\"light\">\n";
2153                 }
2154                 $alternate ^= 1;
2155                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2156                 if ($t_type eq "blob") {
2157                         print "<td class=\"list\">" .
2158                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key), -class => "list"}, esc_html($t_name)) .
2159                               "</td>\n" .
2160                               "<td class=\"link\">" .
2161                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blob");
2162                         if ($have_blame) {
2163                                 print " | " . $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blame");
2164                         }
2165                         print " | " . $cgi->a({-href => href(action=>"history", hash=>$t_hash, hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2166                               " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$t_hash, file_name=>"$base$t_name")}, "raw") .
2167                               "</td>\n";
2168                 } elsif ($t_type eq "tree") {
2169                         print "<td class=\"list\">" .
2170                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, esc_html($t_name)) .
2171                               "</td>\n" .
2172                               "<td class=\"link\">" .
2173                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "tree") .
2174                               " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2175                               "</td>\n";
2176                 }
2177                 print "</tr>\n";
2178         }
2179         print "</table>\n" .
2180               "</div>";
2181         git_footer_html();
2182 }
2183
2184 sub git_log {
2185         my $head = git_get_head_hash($project);
2186         if (!defined $hash) {
2187                 $hash = $head;
2188         }
2189         if (!defined $page) {
2190                 $page = 0;
2191         }
2192         my $refs = git_get_references();
2193
2194         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2195         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2196                 or die_error(undef, "Open git-rev-list failed");
2197         my @revlist = map { chomp; $_ } <$fd>;
2198         close $fd;
2199
2200         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2201
2202         git_header_html();
2203         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2204
2205         if (!@revlist) {
2206                 my %co = parse_commit($hash);
2207
2208                 git_print_header_div('summary', $project);
2209                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2210         }
2211         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2212                 my $commit = $revlist[$i];
2213                 my $ref = format_ref_marker($refs, $commit);
2214                 my %co = parse_commit($commit);
2215                 next if !%co;
2216                 my %ad = parse_date($co{'author_epoch'});
2217                 git_print_header_div('commit',
2218                                "<span class=\"age\">$co{'age_string'}</span>" .
2219                                esc_html($co{'title'}) . $ref,
2220                                $commit);
2221                 print "<div class=\"title_text\">\n" .
2222                       "<div class=\"log_link\">\n" .
2223                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2224                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2225                       "<br/>\n" .
2226                       "</div>\n" .
2227                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2228                       "</div>\n";
2229
2230                 print "<div class=\"log_body\">\n";
2231                 git_print_simplified_log($co{'comment'});
2232                 print "</div>\n";
2233         }
2234         git_footer_html();
2235 }
2236
2237 sub git_commit {
2238         my %co = parse_commit($hash);
2239         if (!%co) {
2240                 die_error(undef, "Unknown commit object");
2241         }
2242         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2243         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2244
2245         my $parent = $co{'parent'};
2246         if (!defined $parent) {
2247                 $parent = "--root";
2248         }
2249         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2250                 or die_error(undef, "Open git-diff-tree failed");
2251         my @difftree = map { chomp; $_ } <$fd>;
2252         close $fd or die_error(undef, "Reading git-diff-tree failed");
2253
2254         # non-textual hash id's can be cached
2255         my $expires;
2256         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2257                 $expires = "+1d";
2258         }
2259         my $refs = git_get_references();
2260         my $ref = format_ref_marker($refs, $co{'id'});
2261         my $formats_nav = '';
2262         if (defined $file_name && defined $co{'parent'}) {
2263                 my $parent = $co{'parent'};
2264                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2265         }
2266         git_header_html(undef, $expires);
2267         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2268                      $hash, $co{'tree'}, $hash,
2269                      $formats_nav);
2270
2271         if (defined $co{'parent'}) {
2272                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2273         } else {
2274                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2275         }
2276         print "<div class=\"title_text\">\n" .
2277               "<table cellspacing=\"0\">\n";
2278         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2279               "<tr>" .
2280               "<td></td><td> $ad{'rfc2822'}";
2281         if ($ad{'hour_local'} < 6) {
2282                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2283         } else {
2284                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2285         }
2286         print "</td>" .
2287               "</tr>\n";
2288         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2289         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2290         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2291         print "<tr>" .
2292               "<td>tree</td>" .
2293               "<td class=\"sha1\">" .
2294               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2295               "</td>" .
2296               "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
2297               "</td>" .
2298               "</tr>\n";
2299         my $parents = $co{'parents'};
2300         foreach my $par (@$parents) {
2301                 print "<tr>" .
2302                       "<td>parent</td>" .
2303                       "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2304                       "<td class=\"link\">" .
2305                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2306                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2307                       "</td>" .
2308                       "</tr>\n";
2309         }
2310         print "</table>".
2311               "</div>\n";
2312
2313         print "<div class=\"page_body\">\n";
2314         git_print_log($co{'comment'});
2315         print "</div>\n";
2316
2317         git_difftree_body(\@difftree, $parent);
2318
2319         git_footer_html();
2320 }
2321
2322 sub git_blobdiff {
2323         mkdir($git_temp, 0700);
2324         git_header_html();
2325         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2326                 my $formats_nav =
2327                         $cgi->a({-href => href(action=>"blobdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2328                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2329                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2330         } else {
2331                 print "<div class=\"page_nav\">\n" .
2332                       "<br/><br/></div>\n" .
2333                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2334         }
2335         git_print_page_path($file_name, "blob");
2336         print "<div class=\"page_body\">\n" .
2337               "<div class=\"diff_info\">blob:" .
2338               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent, hash_base=>$hash_base, file_name=>($file_parent || $file_name))}, $hash_parent) .
2339               " -> blob:" .
2340               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, $hash) .
2341               "</div>\n";
2342         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2343         print "</div>";
2344         git_footer_html();
2345 }
2346
2347 sub git_blobdiff_plain {
2348         mkdir($git_temp, 0700);
2349         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2350         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2351 }
2352
2353 sub git_commitdiff {
2354         mkdir($git_temp, 0700);
2355         my %co = parse_commit($hash);
2356         if (!%co) {
2357                 die_error(undef, "Unknown commit object");
2358         }
2359         if (!defined $hash_parent) {
2360                 $hash_parent = $co{'parent'} || '--root';
2361         }
2362         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2363                 or die_error(undef, "Open git-diff-tree failed");
2364         my @difftree = map { chomp; $_ } <$fd>;
2365         close $fd or die_error(undef, "Reading git-diff-tree failed");
2366
2367         # non-textual hash id's can be cached
2368         my $expires;
2369         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2370                 $expires = "+1d";
2371         }
2372         my $refs = git_get_references();
2373         my $ref = format_ref_marker($refs, $co{'id'});
2374         my $formats_nav =
2375                 $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2376         git_header_html(undef, $expires);
2377         git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2378         git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2379         print "<div class=\"page_body\">\n";
2380         git_print_simplified_log($co{'comment'}, 1); # skip title
2381         print "<br/>\n";
2382         foreach my $line (@difftree) {
2383                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2384                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2385                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2386                         next;
2387                 }
2388                 my $from_mode = $1;
2389                 my $to_mode = $2;
2390                 my $from_id = $3;
2391                 my $to_id = $4;
2392                 my $status = $5;
2393                 my $file = validate_input(unquote($6));
2394                 if ($status eq "A") {
2395                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2396                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) . "(new)" .
2397                               "</div>\n";
2398                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2399                 } elsif ($status eq "D") {
2400                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2401                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) . "(deleted)" .
2402                               "</div>\n";
2403                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2404                 } elsif ($status eq "M") {
2405                         if ($from_id ne $to_id) {
2406                                 print "<div class=\"diff_info\">" .
2407                                       file_type($from_mode) . ":" .
2408                                       $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) .
2409                                       " -> " .
2410                                       file_type($to_mode) . ":" .
2411                                       $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) .
2412                                 print "</div>\n";
2413                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2414                         }
2415                 }
2416         }
2417         print "<br/>\n" .
2418               "</div>";
2419         git_footer_html();
2420 }
2421
2422 sub git_commitdiff_plain {
2423         mkdir($git_temp, 0700);
2424         my %co = parse_commit($hash);
2425         if (!%co) {
2426                 die_error(undef, "Unknown commit object");
2427         }
2428         if (!defined $hash_parent) {
2429                 $hash_parent = $co{'parent'} || '--root';
2430         }
2431         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2432                 or die_error(undef, "Open git-diff-tree failed");
2433         my @difftree = map { chomp; $_ } <$fd>;
2434         close $fd or die_error(undef, "Reading diff-tree failed");
2435
2436         # try to figure out the next tag after this commit
2437         my $tagname;
2438         my $refs = git_get_references("tags");
2439         open $fd, "-|", $GIT, "rev-list", "HEAD";
2440         my @commits = map { chomp; $_ } <$fd>;
2441         close $fd;
2442         foreach my $commit (@commits) {
2443                 if (defined $refs->{$commit}) {
2444                         $tagname = $refs->{$commit}
2445                 }
2446                 if ($commit eq $hash) {
2447                         last;
2448                 }
2449         }
2450
2451         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2452         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2453         my $comment = $co{'comment'};
2454         print "From: $co{'author'}\n" .
2455               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2456               "Subject: $co{'title'}\n";
2457         if (defined $tagname) {
2458                 print "X-Git-Tag: $tagname\n";
2459         }
2460         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2461               "\n";
2462
2463         foreach my $line (@$comment) {;
2464                 print "$line\n";
2465         }
2466         print "---\n\n";
2467
2468         foreach my $line (@difftree) {
2469                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2470                         next;
2471                 }
2472                 my $from_id = $3;
2473                 my $to_id = $4;
2474                 my $status = $5;
2475                 my $file = $6;
2476                 if ($status eq "A") {
2477                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2478                 } elsif ($status eq "D") {
2479                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2480                 } elsif ($status eq "M") {
2481                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2482                 }
2483         }
2484 }
2485
2486 sub git_history {
2487         if (!defined $hash_base) {
2488                 $hash_base = git_get_head_hash($project);
2489         }
2490         my $ftype;
2491         my %co = parse_commit($hash_base);
2492         if (!%co) {
2493                 die_error(undef, "Unknown commit object");
2494         }
2495         my $refs = git_get_references();
2496         git_header_html();
2497         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2498         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2499         if (!defined $hash && defined $file_name) {
2500                 $hash = git_get_hash_by_path($hash_base, $file_name);
2501         }
2502         if (defined $hash) {
2503                 $ftype = git_get_type($hash);
2504         }
2505         git_print_page_path($file_name, $ftype);
2506
2507         open my $fd, "-|",
2508                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2509         git_history_body($fd, $refs, $hash_base, $ftype);
2510
2511         close $fd;
2512         git_footer_html();
2513 }
2514
2515 sub git_search {
2516         if (!defined $searchtext) {
2517                 die_error(undef, "Text field empty");
2518         }
2519         if (!defined $hash) {
2520                 $hash = git_get_head_hash($project);
2521         }
2522         my %co = parse_commit($hash);
2523         if (!%co) {
2524                 die_error(undef, "Unknown commit object");
2525         }
2526         # pickaxe may take all resources of your box and run for several minutes
2527         # with every query - so decide by yourself how public you make this feature :)
2528         my $commit_search = 1;
2529         my $author_search = 0;
2530         my $committer_search = 0;
2531         my $pickaxe_search = 0;
2532         if ($searchtext =~ s/^author\\://i) {
2533                 $author_search = 1;
2534         } elsif ($searchtext =~ s/^committer\\://i) {
2535                 $committer_search = 1;
2536         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2537                 $commit_search = 0;
2538                 $pickaxe_search = 1;
2539         }
2540         git_header_html();
2541         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2542         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2543
2544         print "<table cellspacing=\"0\">\n";
2545         my $alternate = 0;
2546         if ($commit_search) {
2547                 $/ = "\0";
2548                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2549                 while (my $commit_text = <$fd>) {
2550                         if (!grep m/$searchtext/i, $commit_text) {
2551                                 next;
2552                         }
2553                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2554                                 next;
2555                         }
2556                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2557                                 next;
2558                         }
2559                         my @commit_lines = split "\n", $commit_text;
2560                         my %co = parse_commit(undef, \@commit_lines);
2561                         if (!%co) {
2562                                 next;
2563                         }
2564                         if ($alternate) {
2565                                 print "<tr class=\"dark\">\n";
2566                         } else {
2567                                 print "<tr class=\"light\">\n";
2568                         }
2569                         $alternate ^= 1;
2570                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2571                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2572                               "<td>" .
2573                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}) -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2574                         my $comment = $co{'comment'};
2575                         foreach my $line (@$comment) {
2576                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2577                                         my $lead = esc_html($1) || "";
2578                                         $lead = chop_str($lead, 30, 10);
2579                                         my $match = esc_html($2) || "";
2580                                         my $trail = esc_html($3) || "";
2581                                         $trail = chop_str($trail, 30, 10);
2582                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2583                                         print chop_str($text, 80, 5) . "<br/>\n";
2584                                 }
2585                         }
2586                         print "</td>\n" .
2587                               "<td class=\"link\">" .
2588                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2589                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2590                         print "</td>\n" .
2591                               "</tr>\n";
2592                 }
2593                 close $fd;
2594         }
2595
2596         if ($pickaxe_search) {
2597                 $/ = "\n";
2598                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2599                 undef %co;
2600                 my @files;
2601                 while (my $line = <$fd>) {
2602                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2603                                 my %set;
2604                                 $set{'file'} = $6;
2605                                 $set{'from_id'} = $3;
2606                                 $set{'to_id'} = $4;
2607                                 $set{'id'} = $set{'to_id'};
2608                                 if ($set{'id'} =~ m/0{40}/) {
2609                                         $set{'id'} = $set{'from_id'};
2610                                 }
2611                                 if ($set{'id'} =~ m/0{40}/) {
2612                                         next;
2613                                 }
2614                                 push @files, \%set;
2615                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2616                                 if (%co) {
2617                                         if ($alternate) {
2618                                                 print "<tr class=\"dark\">\n";
2619                                         } else {
2620                                                 print "<tr class=\"light\">\n";
2621                                         }
2622                                         $alternate ^= 1;
2623                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2624                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2625                                               "<td>" .
2626                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list"}, "<b>" .
2627                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2628                                         while (my $setref = shift @files) {
2629                                                 my %set = %$setref;
2630                                                 print $cgi->a({-href => href(action=>"blob", hash=>$set{'id'}, hash_base=>$co{'id'}, file_name=>$set{'file'}), class => "list"},
2631                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2632                                                       "<br/>\n";
2633                                         }
2634                                         print "</td>\n" .
2635                                               "<td class=\"link\">" .
2636                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2637                                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2638                                         print "</td>\n" .
2639                                               "</tr>\n";
2640                                 }
2641                                 %co = parse_commit($1);
2642                         }
2643                 }
2644                 close $fd;
2645         }
2646         print "</table>\n";
2647         git_footer_html();
2648 }
2649
2650 sub git_shortlog {
2651         my $head = git_get_head_hash($project);
2652         if (!defined $hash) {
2653                 $hash = $head;
2654         }
2655         if (!defined $page) {
2656                 $page = 0;
2657         }
2658         my $refs = git_get_references();
2659
2660         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2661         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2662                 or die_error(undef, "Open git-rev-list failed");
2663         my @revlist = map { chomp; $_ } <$fd>;
2664         close $fd;
2665
2666         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2667         my $next_link = '';
2668         if ($#revlist >= (100 * ($page+1)-1)) {
2669                 $next_link =
2670                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
2671                                  -title => "Alt-n"}, "next");
2672         }
2673
2674
2675         git_header_html();
2676         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2677         git_print_header_div('summary', $project);
2678
2679         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2680
2681         git_footer_html();
2682 }
2683
2684 ## ......................................................................
2685 ## feeds (RSS, OPML)
2686
2687 sub git_rss {
2688         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2689         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2690                 or die_error(undef, "Open git-rev-list failed");
2691         my @revlist = map { chomp; $_ } <$fd>;
2692         close $fd or die_error(undef, "Reading git-rev-list failed");
2693         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2694         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2695               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2696         print "<channel>\n";
2697         print "<title>$project</title>\n".
2698               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2699               "<description>$project log</description>\n".
2700               "<language>en</language>\n";
2701
2702         for (my $i = 0; $i <= $#revlist; $i++) {
2703                 my $commit = $revlist[$i];
2704                 my %co = parse_commit($commit);
2705                 # we read 150, we always show 30 and the ones more recent than 48 hours
2706                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2707                         last;
2708                 }
2709                 my %cd = parse_date($co{'committer_epoch'});
2710                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2711                 my @difftree = map { chomp; $_ } <$fd>;
2712                 close $fd or next;
2713                 print "<item>\n" .
2714                       "<title>" .
2715                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2716                       "</title>\n" .
2717                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
2718                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2719                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2720                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2721                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
2722                       "<content:encoded>" .
2723                       "<![CDATA[\n";
2724                 my $comment = $co{'comment'};
2725                 foreach my $line (@$comment) {
2726                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
2727                         print "$line<br/>\n";
2728                 }
2729                 print "<br/>\n";
2730                 foreach my $line (@difftree) {
2731                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2732                                 next;
2733                         }
2734                         my $file = validate_input(unquote($7));
2735                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
2736                         print "$file<br/>\n";
2737                 }
2738                 print "]]>\n" .
2739                       "</content:encoded>\n" .
2740                       "</item>\n";
2741         }
2742         print "</channel></rss>";
2743 }
2744
2745 sub git_opml {
2746         my @list = git_get_projects_list();
2747
2748         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2749         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2750               "<opml version=\"1.0\">\n".
2751               "<head>".
2752               "  <title>$site_name Git OPML Export</title>\n".
2753               "</head>\n".
2754               "<body>\n".
2755               "<outline text=\"git RSS feeds\">\n";
2756
2757         foreach my $pr (@list) {
2758                 my %proj = %$pr;
2759                 my $head = git_get_head_hash($proj{'path'});
2760                 if (!defined $head) {
2761                         next;
2762                 }
2763                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2764                 my %co = parse_commit($head);
2765                 if (!%co) {
2766                         next;
2767                 }
2768
2769                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2770                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
2771                 my $html = "$my_url?p=$proj{'path'};a=summary";
2772                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2773         }
2774         print "</outline>\n".
2775               "</body>\n".
2776               "</opml>\n";
2777 }