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