gitweb / gitweb.perlon commit gitweb: fix uninitialized variable warning. (800764c)
   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
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44# html text to include at home page
  45our $home_text = "++GITWEB_HOMETEXT++";
  46
  47# URI of default stylesheet
  48our $stylesheet = "++GITWEB_CSS++";
  49# URI of GIT logo
  50our $logo = "++GITWEB_LOGO++";
  51# URI of GIT favicon, assumed to be image/png type
  52our $favicon = "++GITWEB_FAVICON++";
  53
  54# source of projects list
  55our $projects_list = "++GITWEB_LIST++";
  56
  57# list of git base URLs used for URL to where fetch project from,
  58# i.e. full URL is "$git_base_url/$project"
  59our @git_base_url_list = ("++GITWEB_BASE_URL++");
  60
  61# default blob_plain mimetype and default charset for text/plain blob
  62our $default_blob_plain_mimetype = 'text/plain';
  63our $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)
  67our $mimetypes_file = undef;
  68
  69# You define site-wide feature defaults here; override them with
  70# $GITWEB_CONFIG as necessary.
  71our %feature = (
  72        # feature => {
  73        #       'sub' => feature-sub (subroutine),
  74        #       'override' => allow-override (boolean),
  75        #       'default' => [ default options...] (array reference)}
  76        #
  77        # if feature is overridable (it means that allow-override has true value,
  78        # then feature-sub will be called with default options as parameters;
  79        # return value of feature-sub indicates if to enable specified feature
  80        #
  81        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  82
  83        'blame' => {
  84                'sub' => \&feature_blame,
  85                'override' => 0,
  86                'default' => [0]},
  87
  88        'snapshot' => {
  89                'sub' => \&feature_snapshot,
  90                'override' => 0,
  91                #         => [content-encoding, suffix, program]
  92                'default' => ['x-gzip', 'gz', 'gzip']},
  93
  94        'pickaxe' => {
  95                'sub' => \&feature_pickaxe,
  96                'override' => 0,
  97                'default' => [1]},
  98);
  99
 100sub gitweb_check_feature {
 101        my ($name) = @_;
 102        return undef unless exists $feature{$name};
 103        my ($sub, $override, @defaults) = (
 104                $feature{$name}{'sub'},
 105                $feature{$name}{'override'},
 106                @{$feature{$name}{'default'}});
 107        if (!$override) { return @defaults; }
 108        return $sub->(@defaults);
 109}
 110
 111# To enable system wide have in $GITWEB_CONFIG
 112# $feature{'blame'}{'default'} = [1];
 113# To have project specific config enable override in $GITWEB_CONFIG
 114# $feature{'blame'}{'override'} = 1;
 115# and in project config gitweb.blame = 0|1;
 116
 117sub feature_blame {
 118        my ($val) = git_get_project_config('blame', '--bool');
 119
 120        if ($val eq 'true') {
 121                return 1;
 122        } elsif ($val eq 'false') {
 123                return 0;
 124        }
 125
 126        return $_[0];
 127}
 128
 129# To disable system wide have in $GITWEB_CONFIG
 130# $feature{'snapshot'}{'default'} = [undef];
 131# To have project specific config enable override in $GITWEB_CONFIG
 132# $feature{'blame'}{'override'} = 1;
 133# and in project config  gitweb.snapshot = none|gzip|bzip2
 134
 135sub feature_snapshot {
 136        my ($ctype, $suffix, $command) = @_;
 137
 138        my ($val) = git_get_project_config('snapshot');
 139
 140        if ($val eq 'gzip') {
 141                return ('x-gzip', 'gz', 'gzip');
 142        } elsif ($val eq 'bzip2') {
 143                return ('x-bzip2', 'bz2', 'bzip2');
 144        } elsif ($val eq 'none') {
 145                return ();
 146        }
 147
 148        return ($ctype, $suffix, $command);
 149}
 150
 151# To enable system wide have in $GITWEB_CONFIG
 152# $feature{'pickaxe'}{'default'} = [1];
 153# To have project specific config enable override in $GITWEB_CONFIG
 154# $feature{'pickaxe'}{'override'} = 1;
 155# and in project config gitweb.pickaxe = 0|1;
 156
 157sub feature_pickaxe {
 158        my ($val) = git_get_project_config('pickaxe', '--bool');
 159
 160        if ($val eq 'true') {
 161                return (1);
 162        } elsif ($val eq 'false') {
 163                return (0);
 164        }
 165
 166        return ($_[0]);
 167}
 168
 169# rename detection options for git-diff and git-diff-tree
 170# - default is '-M', with the cost proportional to
 171#   (number of removed files) * (number of new files).
 172# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 173#   (number of changed files + number of removed files) * (number of new files)
 174# - even more costly is '-C', '--find-copies-harder' with cost
 175#   (number of files in the original tree) * (number of new files)
 176# - one might want to include '-B' option, e.g. '-B', '-M'
 177our @diff_opts = ('-M'); # taken from git_commit
 178
 179our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 180do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 181
 182# version of the core git binary
 183our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 184
 185# path to the current git repository
 186our $git_dir;
 187
 188$projects_list ||= $projectroot;
 189
 190# ======================================================================
 191# input validation and dispatch
 192our $action = $cgi->param('a');
 193if (defined $action) {
 194        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 195                die_error(undef, "Invalid action parameter");
 196        }
 197}
 198
 199our $project = $cgi->param('p');
 200if (defined $project) {
 201        if (!validate_input($project)) {
 202                die_error(undef, "Invalid project parameter");
 203        }
 204        if (!(-d "$projectroot/$project")) {
 205                die_error(undef, "No such directory");
 206        }
 207        if (!(-e "$projectroot/$project/HEAD")) {
 208                die_error(undef, "No such project");
 209        }
 210}
 211
 212our $file_name = $cgi->param('f');
 213if (defined $file_name) {
 214        if (!validate_input($file_name)) {
 215                die_error(undef, "Invalid file parameter");
 216        }
 217}
 218
 219our $file_parent = $cgi->param('fp');
 220if (defined $file_parent) {
 221        if (!validate_input($file_parent)) {
 222                die_error(undef, "Invalid file parent parameter");
 223        }
 224}
 225
 226our $hash = $cgi->param('h');
 227if (defined $hash) {
 228        if (!validate_input($hash)) {
 229                die_error(undef, "Invalid hash parameter");
 230        }
 231}
 232
 233our $hash_parent = $cgi->param('hp');
 234if (defined $hash_parent) {
 235        if (!validate_input($hash_parent)) {
 236                die_error(undef, "Invalid hash parent parameter");
 237        }
 238}
 239
 240our $hash_base = $cgi->param('hb');
 241if (defined $hash_base) {
 242        if (!validate_input($hash_base)) {
 243                die_error(undef, "Invalid hash base parameter");
 244        }
 245}
 246
 247our $hash_parent_base = $cgi->param('hpb');
 248if (defined $hash_parent_base) {
 249        if (!validate_input($hash_parent_base)) {
 250                die_error(undef, "Invalid hash parent base parameter");
 251        }
 252}
 253
 254our $page = $cgi->param('pg');
 255if (defined $page) {
 256        if ($page =~ m/[^0-9]$/) {
 257                die_error(undef, "Invalid page parameter");
 258        }
 259}
 260
 261our $searchtext = $cgi->param('s');
 262if (defined $searchtext) {
 263        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 264                die_error(undef, "Invalid search parameter");
 265        }
 266        $searchtext = quotemeta $searchtext;
 267}
 268
 269# now read PATH_INFO and use it as alternative to parameters
 270our $path_info = $ENV{"PATH_INFO"};
 271$path_info =~ s|^/||;
 272$path_info =~ s|/$||;
 273if (validate_input($path_info) && !defined $project) {
 274        $project = $path_info;
 275        while ($project && !-e "$projectroot/$project/HEAD") {
 276                $project =~ s,/*[^/]*$,,;
 277        }
 278        if (defined $project) {
 279                $project = undef unless $project;
 280        }
 281        if ($path_info =~ m,^$project/([^/]+)/(.+)$,) {
 282                # we got "project.git/branch/filename"
 283                $action    ||= "blob_plain";
 284                $hash_base ||= $1;
 285                $file_name ||= $2;
 286        } elsif ($path_info =~ m,^$project/([^/]+)$,) {
 287                # we got "project.git/branch"
 288                $action ||= "shortlog";
 289                $hash   ||= $1;
 290        }
 291}
 292
 293$git_dir = "$projectroot/$project";
 294
 295# dispatch
 296my %actions = (
 297        "blame" => \&git_blame2,
 298        "blobdiff" => \&git_blobdiff,
 299        "blobdiff_plain" => \&git_blobdiff_plain,
 300        "blob" => \&git_blob,
 301        "blob_plain" => \&git_blob_plain,
 302        "commitdiff" => \&git_commitdiff,
 303        "commitdiff_plain" => \&git_commitdiff_plain,
 304        "commit" => \&git_commit,
 305        "heads" => \&git_heads,
 306        "history" => \&git_history,
 307        "log" => \&git_log,
 308        "rss" => \&git_rss,
 309        "search" => \&git_search,
 310        "shortlog" => \&git_shortlog,
 311        "summary" => \&git_summary,
 312        "tag" => \&git_tag,
 313        "tags" => \&git_tags,
 314        "tree" => \&git_tree,
 315        "snapshot" => \&git_snapshot,
 316        # those below don't need $project
 317        "opml" => \&git_opml,
 318        "project_list" => \&git_project_list,
 319        "project_index" => \&git_project_index,
 320);
 321
 322if (defined $project) {
 323        $action ||= 'summary';
 324} else {
 325        $action ||= 'project_list';
 326}
 327if (!defined($actions{$action})) {
 328        die_error(undef, "Unknown action");
 329}
 330$actions{$action}->();
 331exit;
 332
 333## ======================================================================
 334## action links
 335
 336sub href(%) {
 337        my %params = @_;
 338
 339        my @mapping = (
 340                project => "p",
 341                action => "a",
 342                file_name => "f",
 343                file_parent => "fp",
 344                hash => "h",
 345                hash_parent => "hp",
 346                hash_base => "hb",
 347                hash_parent_base => "hpb",
 348                page => "pg",
 349                order => "o",
 350                searchtext => "s",
 351        );
 352        my %mapping = @mapping;
 353
 354        $params{'project'} = $project unless exists $params{'project'};
 355
 356        my @result = ();
 357        for (my $i = 0; $i < @mapping; $i += 2) {
 358                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 359                if (defined $params{$name}) {
 360                        push @result, $symbol . "=" . esc_param($params{$name});
 361                }
 362        }
 363        return "$my_uri?" . join(';', @result);
 364}
 365
 366
 367## ======================================================================
 368## validation, quoting/unquoting and escaping
 369
 370sub validate_input {
 371        my $input = shift;
 372
 373        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 374                return $input;
 375        }
 376        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 377                return undef;
 378        }
 379        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 380                return undef;
 381        }
 382        return $input;
 383}
 384
 385# quote unsafe chars, but keep the slash, even when it's not
 386# correct, but quoted slashes look too horrible in bookmarks
 387sub esc_param {
 388        my $str = shift;
 389        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 390        $str =~ s/\+/%2B/g;
 391        $str =~ s/ /\+/g;
 392        return $str;
 393}
 394
 395# replace invalid utf8 character with SUBSTITUTION sequence
 396sub esc_html {
 397        my $str = shift;
 398        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 399        $str = escapeHTML($str);
 400        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 401        return $str;
 402}
 403
 404# git may return quoted and escaped filenames
 405sub unquote {
 406        my $str = shift;
 407        if ($str =~ m/^"(.*)"$/) {
 408                $str = $1;
 409                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 410        }
 411        return $str;
 412}
 413
 414# escape tabs (convert tabs to spaces)
 415sub untabify {
 416        my $line = shift;
 417
 418        while ((my $pos = index($line, "\t")) != -1) {
 419                if (my $count = (8 - ($pos % 8))) {
 420                        my $spaces = ' ' x $count;
 421                        $line =~ s/\t/$spaces/;
 422                }
 423        }
 424
 425        return $line;
 426}
 427
 428## ----------------------------------------------------------------------
 429## HTML aware string manipulation
 430
 431sub chop_str {
 432        my $str = shift;
 433        my $len = shift;
 434        my $add_len = shift || 10;
 435
 436        # allow only $len chars, but don't cut a word if it would fit in $add_len
 437        # if it doesn't fit, cut it if it's still longer than the dots we would add
 438        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 439        my $body = $1;
 440        my $tail = $2;
 441        if (length($tail) > 4) {
 442                $tail = " ...";
 443                $body =~ s/&[^;]*$//; # remove chopped character entities
 444        }
 445        return "$body$tail";
 446}
 447
 448## ----------------------------------------------------------------------
 449## functions returning short strings
 450
 451# CSS class for given age value (in seconds)
 452sub age_class {
 453        my $age = shift;
 454
 455        if ($age < 60*60*2) {
 456                return "age0";
 457        } elsif ($age < 60*60*24*2) {
 458                return "age1";
 459        } else {
 460                return "age2";
 461        }
 462}
 463
 464# convert age in seconds to "nn units ago" string
 465sub age_string {
 466        my $age = shift;
 467        my $age_str;
 468
 469        if ($age > 60*60*24*365*2) {
 470                $age_str = (int $age/60/60/24/365);
 471                $age_str .= " years ago";
 472        } elsif ($age > 60*60*24*(365/12)*2) {
 473                $age_str = int $age/60/60/24/(365/12);
 474                $age_str .= " months ago";
 475        } elsif ($age > 60*60*24*7*2) {
 476                $age_str = int $age/60/60/24/7;
 477                $age_str .= " weeks ago";
 478        } elsif ($age > 60*60*24*2) {
 479                $age_str = int $age/60/60/24;
 480                $age_str .= " days ago";
 481        } elsif ($age > 60*60*2) {
 482                $age_str = int $age/60/60;
 483                $age_str .= " hours ago";
 484        } elsif ($age > 60*2) {
 485                $age_str = int $age/60;
 486                $age_str .= " min ago";
 487        } elsif ($age > 2) {
 488                $age_str = int $age;
 489                $age_str .= " sec ago";
 490        } else {
 491                $age_str .= " right now";
 492        }
 493        return $age_str;
 494}
 495
 496# convert file mode in octal to symbolic file mode string
 497sub mode_str {
 498        my $mode = oct shift;
 499
 500        if (S_ISDIR($mode & S_IFMT)) {
 501                return 'drwxr-xr-x';
 502        } elsif (S_ISLNK($mode)) {
 503                return 'lrwxrwxrwx';
 504        } elsif (S_ISREG($mode)) {
 505                # git cares only about the executable bit
 506                if ($mode & S_IXUSR) {
 507                        return '-rwxr-xr-x';
 508                } else {
 509                        return '-rw-r--r--';
 510                };
 511        } else {
 512                return '----------';
 513        }
 514}
 515
 516# convert file mode in octal to file type string
 517sub file_type {
 518        my $mode = shift;
 519
 520        if ($mode !~ m/^[0-7]+$/) {
 521                return $mode;
 522        } else {
 523                $mode = oct $mode;
 524        }
 525
 526        if (S_ISDIR($mode & S_IFMT)) {
 527                return "directory";
 528        } elsif (S_ISLNK($mode)) {
 529                return "symlink";
 530        } elsif (S_ISREG($mode)) {
 531                return "file";
 532        } else {
 533                return "unknown";
 534        }
 535}
 536
 537## ----------------------------------------------------------------------
 538## functions returning short HTML fragments, or transforming HTML fragments
 539## which don't beling to other sections
 540
 541# format line of commit message or tag comment
 542sub format_log_line_html {
 543        my $line = shift;
 544
 545        $line = esc_html($line);
 546        $line =~ s/ /&nbsp;/g;
 547        if ($line =~ m/([0-9a-fA-F]{40})/) {
 548                my $hash_text = $1;
 549                if (git_get_type($hash_text) eq "commit") {
 550                        my $link =
 551                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 552                                        -class => "text"}, $hash_text);
 553                        $line =~ s/$hash_text/$link/;
 554                }
 555        }
 556        return $line;
 557}
 558
 559# format marker of refs pointing to given object
 560sub format_ref_marker {
 561        my ($refs, $id) = @_;
 562        my $markers = '';
 563
 564        if (defined $refs->{$id}) {
 565                foreach my $ref (@{$refs->{$id}}) {
 566                        my ($type, $name) = qw();
 567                        # e.g. tags/v2.6.11 or heads/next
 568                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 569                                $type = $1;
 570                                $name = $2;
 571                        } else {
 572                                $type = "ref";
 573                                $name = $ref;
 574                        }
 575
 576                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 577                }
 578        }
 579
 580        if ($markers) {
 581                return ' <span class="refs">'. $markers . '</span>';
 582        } else {
 583                return "";
 584        }
 585}
 586
 587# format, perhaps shortened and with markers, title line
 588sub format_subject_html {
 589        my ($long, $short, $href, $extra) = @_;
 590        $extra = '' unless defined($extra);
 591
 592        if (length($short) < length($long)) {
 593                return $cgi->a({-href => $href, -class => "list subject",
 594                                -title => $long},
 595                       esc_html($short) . $extra);
 596        } else {
 597                return $cgi->a({-href => $href, -class => "list subject"},
 598                       esc_html($long)  . $extra);
 599        }
 600}
 601
 602sub format_diff_line {
 603        my $line = shift;
 604        my $char = substr($line, 0, 1);
 605        my $diff_class = "";
 606
 607        chomp $line;
 608
 609        if ($char eq '+') {
 610                $diff_class = " add";
 611        } elsif ($char eq "-") {
 612                $diff_class = " rem";
 613        } elsif ($char eq "@") {
 614                $diff_class = " chunk_header";
 615        } elsif ($char eq "\\") {
 616                $diff_class = " incomplete";
 617        }
 618        $line = untabify($line);
 619        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 620}
 621
 622## ----------------------------------------------------------------------
 623## git utility subroutines, invoking git commands
 624
 625# returns path to the core git executable and the --git-dir parameter as list
 626sub git_cmd {
 627        return $GIT, '--git-dir='.$git_dir;
 628}
 629
 630# returns path to the core git executable and the --git-dir parameter as string
 631sub git_cmd_str {
 632        return join(' ', git_cmd());
 633}
 634
 635# get HEAD ref of given project as hash
 636sub git_get_head_hash {
 637        my $project = shift;
 638        my $o_git_dir = $git_dir;
 639        my $retval = undef;
 640        $git_dir = "$projectroot/$project";
 641        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 642                my $head = <$fd>;
 643                close $fd;
 644                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 645                        $retval = $1;
 646                }
 647        }
 648        if (defined $o_git_dir) {
 649                $git_dir = $o_git_dir;
 650        }
 651        return $retval;
 652}
 653
 654# get type of given object
 655sub git_get_type {
 656        my $hash = shift;
 657
 658        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 659        my $type = <$fd>;
 660        close $fd or return;
 661        chomp $type;
 662        return $type;
 663}
 664
 665sub git_get_project_config {
 666        my ($key, $type) = @_;
 667
 668        return unless ($key);
 669        $key =~ s/^gitweb\.//;
 670        return if ($key =~ m/\W/);
 671
 672        my @x = (git_cmd(), 'repo-config');
 673        if (defined $type) { push @x, $type; }
 674        push @x, "--get";
 675        push @x, "gitweb.$key";
 676        my $val = qx(@x);
 677        chomp $val;
 678        return ($val);
 679}
 680
 681# get hash of given path at given ref
 682sub git_get_hash_by_path {
 683        my $base = shift;
 684        my $path = shift || return undef;
 685
 686        my $tree = $base;
 687
 688        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 689                or die_error(undef, "Open git-ls-tree failed");
 690        my $line = <$fd>;
 691        close $fd or return undef;
 692
 693        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 694        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 695        return $3;
 696}
 697
 698## ......................................................................
 699## git utility functions, directly accessing git repository
 700
 701sub git_get_project_description {
 702        my $path = shift;
 703
 704        open my $fd, "$projectroot/$path/description" or return undef;
 705        my $descr = <$fd>;
 706        close $fd;
 707        chomp $descr;
 708        return $descr;
 709}
 710
 711sub git_get_project_url_list {
 712        my $path = shift;
 713
 714        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 715        my @git_project_url_list = map { chomp; $_ } <$fd>;
 716        close $fd;
 717
 718        return wantarray ? @git_project_url_list : \@git_project_url_list;
 719}
 720
 721sub git_get_projects_list {
 722        my @list;
 723
 724        if (-d $projects_list) {
 725                # search in directory
 726                my $dir = $projects_list;
 727                my $pfxlen = length("$dir");
 728
 729                File::Find::find({
 730                        follow_fast => 1, # follow symbolic links
 731                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 732                        wanted => sub {
 733                                # skip project-list toplevel, if we get it.
 734                                return if (m!^[/.]$!);
 735                                # only directories can be git repositories
 736                                return unless (-d $_);
 737
 738                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 739                                # we check related file in $projectroot
 740                                if (-e "$projectroot/$subdir/HEAD") {
 741                                        push @list, { path => $subdir };
 742                                        $File::Find::prune = 1;
 743                                }
 744                        },
 745                }, "$dir");
 746
 747        } elsif (-f $projects_list) {
 748                # read from file(url-encoded):
 749                # 'git%2Fgit.git Linus+Torvalds'
 750                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 751                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 752                open my ($fd), $projects_list or return undef;
 753                while (my $line = <$fd>) {
 754                        chomp $line;
 755                        my ($path, $owner) = split ' ', $line;
 756                        $path = unescape($path);
 757                        $owner = unescape($owner);
 758                        if (!defined $path) {
 759                                next;
 760                        }
 761                        if (-e "$projectroot/$path/HEAD") {
 762                                my $pr = {
 763                                        path => $path,
 764                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 765                                };
 766                                push @list, $pr
 767                        }
 768                }
 769                close $fd;
 770        }
 771        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 772        return @list;
 773}
 774
 775sub git_get_project_owner {
 776        my $project = shift;
 777        my $owner;
 778
 779        return undef unless $project;
 780
 781        # read from file (url-encoded):
 782        # 'git%2Fgit.git Linus+Torvalds'
 783        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 784        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 785        if (-f $projects_list) {
 786                open (my $fd , $projects_list);
 787                while (my $line = <$fd>) {
 788                        chomp $line;
 789                        my ($pr, $ow) = split ' ', $line;
 790                        $pr = unescape($pr);
 791                        $ow = unescape($ow);
 792                        if ($pr eq $project) {
 793                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 794                                last;
 795                        }
 796                }
 797                close $fd;
 798        }
 799        if (!defined $owner) {
 800                $owner = get_file_owner("$projectroot/$project");
 801        }
 802
 803        return $owner;
 804}
 805
 806sub git_get_references {
 807        my $type = shift || "";
 808        my %refs;
 809        my $fd;
 810        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 811        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 812        if (-f "$projectroot/$project/info/refs") {
 813                open $fd, "$projectroot/$project/info/refs"
 814                        or return;
 815        } else {
 816                open $fd, "-|", git_cmd(), "ls-remote", "."
 817                        or return;
 818        }
 819
 820        while (my $line = <$fd>) {
 821                chomp $line;
 822                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 823                        if (defined $refs{$1}) {
 824                                push @{$refs{$1}}, $2;
 825                        } else {
 826                                $refs{$1} = [ $2 ];
 827                        }
 828                }
 829        }
 830        close $fd or return;
 831        return \%refs;
 832}
 833
 834sub git_get_rev_name_tags {
 835        my $hash = shift || return undef;
 836
 837        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 838                or return;
 839        my $name_rev = <$fd>;
 840        close $fd;
 841
 842        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 843                return $1;
 844        } else {
 845                # catches also '$hash undefined' output
 846                return undef;
 847        }
 848}
 849
 850## ----------------------------------------------------------------------
 851## parse to hash functions
 852
 853sub parse_date {
 854        my $epoch = shift;
 855        my $tz = shift || "-0000";
 856
 857        my %date;
 858        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 859        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 860        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 861        $date{'hour'} = $hour;
 862        $date{'minute'} = $min;
 863        $date{'mday'} = $mday;
 864        $date{'day'} = $days[$wday];
 865        $date{'month'} = $months[$mon];
 866        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 867                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 868        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 869                             $mday, $months[$mon], $hour ,$min;
 870
 871        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 872        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 873        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 874        $date{'hour_local'} = $hour;
 875        $date{'minute_local'} = $min;
 876        $date{'tz_local'} = $tz;
 877        return %date;
 878}
 879
 880sub parse_tag {
 881        my $tag_id = shift;
 882        my %tag;
 883        my @comment;
 884
 885        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 886        $tag{'id'} = $tag_id;
 887        while (my $line = <$fd>) {
 888                chomp $line;
 889                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 890                        $tag{'object'} = $1;
 891                } elsif ($line =~ m/^type (.+)$/) {
 892                        $tag{'type'} = $1;
 893                } elsif ($line =~ m/^tag (.+)$/) {
 894                        $tag{'name'} = $1;
 895                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 896                        $tag{'author'} = $1;
 897                        $tag{'epoch'} = $2;
 898                        $tag{'tz'} = $3;
 899                } elsif ($line =~ m/--BEGIN/) {
 900                        push @comment, $line;
 901                        last;
 902                } elsif ($line eq "") {
 903                        last;
 904                }
 905        }
 906        push @comment, <$fd>;
 907        $tag{'comment'} = \@comment;
 908        close $fd or return;
 909        if (!defined $tag{'name'}) {
 910                return
 911        };
 912        return %tag
 913}
 914
 915sub parse_commit {
 916        my $commit_id = shift;
 917        my $commit_text = shift;
 918
 919        my @commit_lines;
 920        my %co;
 921
 922        if (defined $commit_text) {
 923                @commit_lines = @$commit_text;
 924        } else {
 925                $/ = "\0";
 926                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 927                        or return;
 928                @commit_lines = split '\n', <$fd>;
 929                close $fd or return;
 930                $/ = "\n";
 931                pop @commit_lines;
 932        }
 933        my $header = shift @commit_lines;
 934        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 935                return;
 936        }
 937        ($co{'id'}, my @parents) = split ' ', $header;
 938        $co{'parents'} = \@parents;
 939        $co{'parent'} = $parents[0];
 940        while (my $line = shift @commit_lines) {
 941                last if $line eq "\n";
 942                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 943                        $co{'tree'} = $1;
 944                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 945                        $co{'author'} = $1;
 946                        $co{'author_epoch'} = $2;
 947                        $co{'author_tz'} = $3;
 948                        if ($co{'author'} =~ m/^([^<]+) </) {
 949                                $co{'author_name'} = $1;
 950                        } else {
 951                                $co{'author_name'} = $co{'author'};
 952                        }
 953                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 954                        $co{'committer'} = $1;
 955                        $co{'committer_epoch'} = $2;
 956                        $co{'committer_tz'} = $3;
 957                        $co{'committer_name'} = $co{'committer'};
 958                        $co{'committer_name'} =~ s/ <.*//;
 959                }
 960        }
 961        if (!defined $co{'tree'}) {
 962                return;
 963        };
 964
 965        foreach my $title (@commit_lines) {
 966                $title =~ s/^    //;
 967                if ($title ne "") {
 968                        $co{'title'} = chop_str($title, 80, 5);
 969                        # remove leading stuff of merges to make the interesting part visible
 970                        if (length($title) > 50) {
 971                                $title =~ s/^Automatic //;
 972                                $title =~ s/^merge (of|with) /Merge ... /i;
 973                                if (length($title) > 50) {
 974                                        $title =~ s/(http|rsync):\/\///;
 975                                }
 976                                if (length($title) > 50) {
 977                                        $title =~ s/(master|www|rsync)\.//;
 978                                }
 979                                if (length($title) > 50) {
 980                                        $title =~ s/kernel.org:?//;
 981                                }
 982                                if (length($title) > 50) {
 983                                        $title =~ s/\/pub\/scm//;
 984                                }
 985                        }
 986                        $co{'title_short'} = chop_str($title, 50, 5);
 987                        last;
 988                }
 989        }
 990        # remove added spaces
 991        foreach my $line (@commit_lines) {
 992                $line =~ s/^    //;
 993        }
 994        $co{'comment'} = \@commit_lines;
 995
 996        my $age = time - $co{'committer_epoch'};
 997        $co{'age'} = $age;
 998        $co{'age_string'} = age_string($age);
 999        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1000        if ($age > 60*60*24*7*2) {
1001                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1002                $co{'age_string_age'} = $co{'age_string'};
1003        } else {
1004                $co{'age_string_date'} = $co{'age_string'};
1005                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1006        }
1007        return %co;
1008}
1009
1010# parse ref from ref_file, given by ref_id, with given type
1011sub parse_ref {
1012        my $ref_file = shift;
1013        my $ref_id = shift;
1014        my $type = shift || git_get_type($ref_id);
1015        my %ref_item;
1016
1017        $ref_item{'type'} = $type;
1018        $ref_item{'id'} = $ref_id;
1019        $ref_item{'epoch'} = 0;
1020        $ref_item{'age'} = "unknown";
1021        if ($type eq "tag") {
1022                my %tag = parse_tag($ref_id);
1023                $ref_item{'comment'} = $tag{'comment'};
1024                if ($tag{'type'} eq "commit") {
1025                        my %co = parse_commit($tag{'object'});
1026                        $ref_item{'epoch'} = $co{'committer_epoch'};
1027                        $ref_item{'age'} = $co{'age_string'};
1028                } elsif (defined($tag{'epoch'})) {
1029                        my $age = time - $tag{'epoch'};
1030                        $ref_item{'epoch'} = $tag{'epoch'};
1031                        $ref_item{'age'} = age_string($age);
1032                }
1033                $ref_item{'reftype'} = $tag{'type'};
1034                $ref_item{'name'} = $tag{'name'};
1035                $ref_item{'refid'} = $tag{'object'};
1036        } elsif ($type eq "commit"){
1037                my %co = parse_commit($ref_id);
1038                $ref_item{'reftype'} = "commit";
1039                $ref_item{'name'} = $ref_file;
1040                $ref_item{'title'} = $co{'title'};
1041                $ref_item{'refid'} = $ref_id;
1042                $ref_item{'epoch'} = $co{'committer_epoch'};
1043                $ref_item{'age'} = $co{'age_string'};
1044        } else {
1045                $ref_item{'reftype'} = $type;
1046                $ref_item{'name'} = $ref_file;
1047                $ref_item{'refid'} = $ref_id;
1048        }
1049
1050        return %ref_item;
1051}
1052
1053# parse line of git-diff-tree "raw" output
1054sub parse_difftree_raw_line {
1055        my $line = shift;
1056        my %res;
1057
1058        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1059        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1060        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1061                $res{'from_mode'} = $1;
1062                $res{'to_mode'} = $2;
1063                $res{'from_id'} = $3;
1064                $res{'to_id'} = $4;
1065                $res{'status'} = $5;
1066                $res{'similarity'} = $6;
1067                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1068                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1069                } else {
1070                        $res{'file'} = unquote($7);
1071                }
1072        }
1073        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1074        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1075                $res{'commit'} = $1;
1076        }
1077
1078        return wantarray ? %res : \%res;
1079}
1080
1081# parse line of git-ls-tree output
1082sub parse_ls_tree_line ($;%) {
1083        my $line = shift;
1084        my %opts = @_;
1085        my %res;
1086
1087        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1088        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1089
1090        $res{'mode'} = $1;
1091        $res{'type'} = $2;
1092        $res{'hash'} = $3;
1093        if ($opts{'-z'}) {
1094                $res{'name'} = $4;
1095        } else {
1096                $res{'name'} = unquote($4);
1097        }
1098
1099        return wantarray ? %res : \%res;
1100}
1101
1102## ......................................................................
1103## parse to array of hashes functions
1104
1105sub git_get_refs_list {
1106        my $ref_dir = shift;
1107        my @reflist;
1108
1109        my @refs;
1110        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1111                or return;
1112        while (my $line = <$fd>) {
1113                chomp $line;
1114                if ($line =~ m/^([0-9a-fA-F]{40})\t$ref_dir\/?([^\^]+)$/) {
1115                        push @refs, { hash => $1, name => $2 };
1116                } elsif ($line =~ m/^[0-9a-fA-F]{40}\t$ref_dir\/?(.*)\^\{\}$/ &&
1117                         $1 eq $refs[-1]{'name'}) {
1118                        # most likely a tag is followed by its peeled
1119                        # (deref) one, and when that happens we know the
1120                        # previous one was of type 'tag'.
1121                        $refs[-1]{'type'} = "tag";
1122                }
1123        }
1124        close $fd;
1125
1126        foreach my $ref (@refs) {
1127                my $ref_file = $ref->{'name'};
1128                my $ref_id   = $ref->{'hash'};
1129
1130                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1131                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1132
1133                push @reflist, \%ref_item;
1134        }
1135        # sort refs by age
1136        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1137        return \@reflist;
1138}
1139
1140## ----------------------------------------------------------------------
1141## filesystem-related functions
1142
1143sub get_file_owner {
1144        my $path = shift;
1145
1146        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1147        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1148        if (!defined $gcos) {
1149                return undef;
1150        }
1151        my $owner = $gcos;
1152        $owner =~ s/[,;].*$//;
1153        return decode("utf8", $owner, Encode::FB_DEFAULT);
1154}
1155
1156## ......................................................................
1157## mimetype related functions
1158
1159sub mimetype_guess_file {
1160        my $filename = shift;
1161        my $mimemap = shift;
1162        -r $mimemap or return undef;
1163
1164        my %mimemap;
1165        open(MIME, $mimemap) or return undef;
1166        while (<MIME>) {
1167                next if m/^#/; # skip comments
1168                my ($mime, $exts) = split(/\t+/);
1169                if (defined $exts) {
1170                        my @exts = split(/\s+/, $exts);
1171                        foreach my $ext (@exts) {
1172                                $mimemap{$ext} = $mime;
1173                        }
1174                }
1175        }
1176        close(MIME);
1177
1178        $filename =~ /\.(.*?)$/;
1179        return $mimemap{$1};
1180}
1181
1182sub mimetype_guess {
1183        my $filename = shift;
1184        my $mime;
1185        $filename =~ /\./ or return undef;
1186
1187        if ($mimetypes_file) {
1188                my $file = $mimetypes_file;
1189                if ($file !~ m!^/!) { # if it is relative path
1190                        # it is relative to project
1191                        $file = "$projectroot/$project/$file";
1192                }
1193                $mime = mimetype_guess_file($filename, $file);
1194        }
1195        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1196        return $mime;
1197}
1198
1199sub blob_mimetype {
1200        my $fd = shift;
1201        my $filename = shift;
1202
1203        if ($filename) {
1204                my $mime = mimetype_guess($filename);
1205                $mime and return $mime;
1206        }
1207
1208        # just in case
1209        return $default_blob_plain_mimetype unless $fd;
1210
1211        if (-T $fd) {
1212                return 'text/plain' .
1213                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1214        } elsif (! $filename) {
1215                return 'application/octet-stream';
1216        } elsif ($filename =~ m/\.png$/i) {
1217                return 'image/png';
1218        } elsif ($filename =~ m/\.gif$/i) {
1219                return 'image/gif';
1220        } elsif ($filename =~ m/\.jpe?g$/i) {
1221                return 'image/jpeg';
1222        } else {
1223                return 'application/octet-stream';
1224        }
1225}
1226
1227## ======================================================================
1228## functions printing HTML: header, footer, error page
1229
1230sub git_header_html {
1231        my $status = shift || "200 OK";
1232        my $expires = shift;
1233
1234        my $title = "$site_name git";
1235        if (defined $project) {
1236                $title .= " - $project";
1237                if (defined $action) {
1238                        $title .= "/$action";
1239                        if (defined $file_name) {
1240                                $title .= " - $file_name";
1241                                if ($action eq "tree" && $file_name !~ m|/$|) {
1242                                        $title .= "/";
1243                                }
1244                        }
1245                }
1246        }
1247        my $content_type;
1248        # require explicit support from the UA if we are to send the page as
1249        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1250        # we have to do this because MSIE sometimes globs '*/*', pretending to
1251        # support xhtml+xml but choking when it gets what it asked for.
1252        if (defined $cgi->http('HTTP_ACCEPT') &&
1253            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1254            $cgi->Accept('application/xhtml+xml') != 0) {
1255                $content_type = 'application/xhtml+xml';
1256        } else {
1257                $content_type = 'text/html';
1258        }
1259        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1260                           -status=> $status, -expires => $expires);
1261        print <<EOF;
1262<?xml version="1.0" encoding="utf-8"?>
1263<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1264<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1265<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1266<!-- git core binaries version $git_version -->
1267<head>
1268<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1269<meta name="generator" content="gitweb/$version git/$git_version"/>
1270<meta name="robots" content="index, nofollow"/>
1271<title>$title</title>
1272<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1273EOF
1274        if (defined $project) {
1275                printf('<link rel="alternate" title="%s log" '.
1276                       'href="%s" type="application/rss+xml"/>'."\n",
1277                       esc_param($project), href(action=>"rss"));
1278        } else {
1279                printf('<link rel="alternate" title="%s projects list" '.
1280                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1281                       $site_name, href(project=>undef, action=>"project_index"));
1282                printf('<link rel="alternate" title="%s projects logs" '.
1283                       'href="%s" type="text/x-opml"/>'."\n",
1284                       $site_name, href(project=>undef, action=>"opml"));
1285        }
1286        if (defined $favicon) {
1287                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1288        }
1289
1290        print "</head>\n" .
1291              "<body>\n" .
1292              "<div class=\"page_header\">\n" .
1293              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1294              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1295              "</a>\n";
1296        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1297        if (defined $project) {
1298                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1299                if (defined $action) {
1300                        print " / $action";
1301                }
1302                print "\n";
1303                if (!defined $searchtext) {
1304                        $searchtext = "";
1305                }
1306                my $search_hash;
1307                if (defined $hash_base) {
1308                        $search_hash = $hash_base;
1309                } elsif (defined $hash) {
1310                        $search_hash = $hash;
1311                } else {
1312                        $search_hash = "HEAD";
1313                }
1314                $cgi->param("a", "search");
1315                $cgi->param("h", $search_hash);
1316                print $cgi->startform(-method => "get", -action => $my_uri) .
1317                      "<div class=\"search\">\n" .
1318                      $cgi->hidden(-name => "p") . "\n" .
1319                      $cgi->hidden(-name => "a") . "\n" .
1320                      $cgi->hidden(-name => "h") . "\n" .
1321                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1322                      "</div>" .
1323                      $cgi->end_form() . "\n";
1324        }
1325        print "</div>\n";
1326}
1327
1328sub git_footer_html {
1329        print "<div class=\"page_footer\">\n";
1330        if (defined $project) {
1331                my $descr = git_get_project_description($project);
1332                if (defined $descr) {
1333                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1334                }
1335                print $cgi->a({-href => href(action=>"rss"),
1336                              -class => "rss_logo"}, "RSS") . "\n";
1337        } else {
1338                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1339                              -class => "rss_logo"}, "OPML") . " ";
1340                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1341                              -class => "rss_logo"}, "TXT") . "\n";
1342        }
1343        print "</div>\n" .
1344              "</body>\n" .
1345              "</html>";
1346}
1347
1348sub die_error {
1349        my $status = shift || "403 Forbidden";
1350        my $error = shift || "Malformed query, file missing or permission denied";
1351
1352        git_header_html($status);
1353        print <<EOF;
1354<div class="page_body">
1355<br /><br />
1356$status - $error
1357<br />
1358</div>
1359EOF
1360        git_footer_html();
1361        exit;
1362}
1363
1364## ----------------------------------------------------------------------
1365## functions printing or outputting HTML: navigation
1366
1367sub git_print_page_nav {
1368        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1369        $extra = '' if !defined $extra; # pager or formats
1370
1371        my @navs = qw(summary shortlog log commit commitdiff tree);
1372        if ($suppress) {
1373                @navs = grep { $_ ne $suppress } @navs;
1374        }
1375
1376        my %arg = map { $_ => {action=>$_} } @navs;
1377        if (defined $head) {
1378                for (qw(commit commitdiff)) {
1379                        $arg{$_}{hash} = $head;
1380                }
1381                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1382                        for (qw(shortlog log)) {
1383                                $arg{$_}{hash} = $head;
1384                        }
1385                }
1386        }
1387        $arg{tree}{hash} = $treehead if defined $treehead;
1388        $arg{tree}{hash_base} = $treebase if defined $treebase;
1389
1390        print "<div class=\"page_nav\">\n" .
1391                (join " | ",
1392                 map { $_ eq $current ?
1393                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1394                 } @navs);
1395        print "<br/>\n$extra<br/>\n" .
1396              "</div>\n";
1397}
1398
1399sub format_paging_nav {
1400        my ($action, $hash, $head, $page, $nrevs) = @_;
1401        my $paging_nav;
1402
1403
1404        if ($hash ne $head || $page) {
1405                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1406        } else {
1407                $paging_nav .= "HEAD";
1408        }
1409
1410        if ($page > 0) {
1411                $paging_nav .= " &sdot; " .
1412                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1413                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1414        } else {
1415                $paging_nav .= " &sdot; prev";
1416        }
1417
1418        if ($nrevs >= (100 * ($page+1)-1)) {
1419                $paging_nav .= " &sdot; " .
1420                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1421                                 -accesskey => "n", -title => "Alt-n"}, "next");
1422        } else {
1423                $paging_nav .= " &sdot; next";
1424        }
1425
1426        return $paging_nav;
1427}
1428
1429## ......................................................................
1430## functions printing or outputting HTML: div
1431
1432sub git_print_header_div {
1433        my ($action, $title, $hash, $hash_base) = @_;
1434        my %args = ();
1435
1436        $args{action} = $action;
1437        $args{hash} = $hash if $hash;
1438        $args{hash_base} = $hash_base if $hash_base;
1439
1440        print "<div class=\"header\">\n" .
1441              $cgi->a({-href => href(%args), -class => "title"},
1442              $title ? $title : $action) .
1443              "\n</div>\n";
1444}
1445
1446#sub git_print_authorship (\%) {
1447sub git_print_authorship {
1448        my $co = shift;
1449
1450        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1451        print "<div class=\"author_date\">" .
1452              esc_html($co->{'author_name'}) .
1453              " [$ad{'rfc2822'}";
1454        if ($ad{'hour_local'} < 6) {
1455                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1456                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1457        } else {
1458                printf(" (%02d:%02d %s)",
1459                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1460        }
1461        print "]</div>\n";
1462}
1463
1464sub git_print_page_path {
1465        my $name = shift;
1466        my $type = shift;
1467        my $hb = shift;
1468
1469        if (!defined $name) {
1470                print "<div class=\"page_path\">/</div>\n";
1471        } else {
1472                my @dirname = split '/', $name;
1473                my $basename = pop @dirname;
1474                my $fullname = '';
1475
1476                print "<div class=\"page_path\">";
1477                foreach my $dir (@dirname) {
1478                        $fullname .= $dir . '/';
1479                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1480                                                     hash_base=>$hb),
1481                                      -title => $fullname}, esc_html($dir));
1482                        print "/";
1483                }
1484                if (defined $type && $type eq 'blob') {
1485                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1486                                                     hash_base=>$hb),
1487                                      -title => $name}, esc_html($basename));
1488                } elsif (defined $type && $type eq 'tree') {
1489                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1490                                                     hash_base=>$hb),
1491                                      -title => $name}, esc_html($basename));
1492                        print "/";
1493                } else {
1494                        print esc_html($basename);
1495                }
1496                print "<br/></div>\n";
1497        }
1498}
1499
1500# sub git_print_log (\@;%) {
1501sub git_print_log ($;%) {
1502        my $log = shift;
1503        my %opts = @_;
1504
1505        if ($opts{'-remove_title'}) {
1506                # remove title, i.e. first line of log
1507                shift @$log;
1508        }
1509        # remove leading empty lines
1510        while (defined $log->[0] && $log->[0] eq "") {
1511                shift @$log;
1512        }
1513
1514        # print log
1515        my $signoff = 0;
1516        my $empty = 0;
1517        foreach my $line (@$log) {
1518                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1519                        $signoff = 1;
1520                        $empty = 0;
1521                        if (! $opts{'-remove_signoff'}) {
1522                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1523                                next;
1524                        } else {
1525                                # remove signoff lines
1526                                next;
1527                        }
1528                } else {
1529                        $signoff = 0;
1530                }
1531
1532                # print only one empty line
1533                # do not print empty line after signoff
1534                if ($line eq "") {
1535                        next if ($empty || $signoff);
1536                        $empty = 1;
1537                } else {
1538                        $empty = 0;
1539                }
1540
1541                print format_log_line_html($line) . "<br/>\n";
1542        }
1543
1544        if ($opts{'-final_empty_line'}) {
1545                # end with single empty line
1546                print "<br/>\n" unless $empty;
1547        }
1548}
1549
1550sub git_print_simplified_log {
1551        my $log = shift;
1552        my $remove_title = shift;
1553
1554        git_print_log($log,
1555                -final_empty_line=> 1,
1556                -remove_title => $remove_title);
1557}
1558
1559# print tree entry (row of git_tree), but without encompassing <tr> element
1560sub git_print_tree_entry {
1561        my ($t, $basedir, $hash_base, $have_blame) = @_;
1562
1563        my %base_key = ();
1564        $base_key{hash_base} = $hash_base if defined $hash_base;
1565
1566        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1567        if ($t->{'type'} eq "blob") {
1568                print "<td class=\"list\">" .
1569                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1570                                             file_name=>"$basedir$t->{'name'}", %base_key),
1571                              -class => "list"}, esc_html($t->{'name'})) .
1572                      "</td>\n" .
1573                      "<td class=\"link\">" .
1574                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1575                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1576                              "blob");
1577                if ($have_blame) {
1578                        print " | " .
1579                                $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1580                                                       file_name=>"$basedir$t->{'name'}", %base_key)},
1581                                        "blame");
1582                }
1583                if (defined $hash_base) {
1584                        print " | " .
1585                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1586                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1587                                      "history");
1588                }
1589                print " | " .
1590                      $cgi->a({-href => href(action=>"blob_plain",
1591                                             hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1592                              "raw") .
1593                      "</td>\n";
1594
1595        } elsif ($t->{'type'} eq "tree") {
1596                print "<td class=\"list\">" .
1597                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1598                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1599                              esc_html($t->{'name'})) .
1600                      "</td>\n" .
1601                      "<td class=\"link\">" .
1602                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1603                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1604                              "tree");
1605                if (defined $hash_base) {
1606                        print " | " .
1607                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1608                                                     file_name=>"$basedir$t->{'name'}")},
1609                                      "history");
1610                }
1611                print "</td>\n";
1612        }
1613}
1614
1615## ......................................................................
1616## functions printing large fragments of HTML
1617
1618sub git_difftree_body {
1619        my ($difftree, $hash, $parent) = @_;
1620
1621        print "<div class=\"list_head\">\n";
1622        if ($#{$difftree} > 10) {
1623                print(($#{$difftree} + 1) . " files changed:\n");
1624        }
1625        print "</div>\n";
1626
1627        print "<table class=\"diff_tree\">\n";
1628        my $alternate = 0;
1629        my $patchno = 0;
1630        foreach my $line (@{$difftree}) {
1631                my %diff = parse_difftree_raw_line($line);
1632
1633                if ($alternate) {
1634                        print "<tr class=\"dark\">\n";
1635                } else {
1636                        print "<tr class=\"light\">\n";
1637                }
1638                $alternate ^= 1;
1639
1640                my ($to_mode_oct, $to_mode_str, $to_file_type);
1641                my ($from_mode_oct, $from_mode_str, $from_file_type);
1642                if ($diff{'to_mode'} ne ('0' x 6)) {
1643                        $to_mode_oct = oct $diff{'to_mode'};
1644                        if (S_ISREG($to_mode_oct)) { # only for regular file
1645                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1646                        }
1647                        $to_file_type = file_type($diff{'to_mode'});
1648                }
1649                if ($diff{'from_mode'} ne ('0' x 6)) {
1650                        $from_mode_oct = oct $diff{'from_mode'};
1651                        if (S_ISREG($to_mode_oct)) { # only for regular file
1652                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1653                        }
1654                        $from_file_type = file_type($diff{'from_mode'});
1655                }
1656
1657                if ($diff{'status'} eq "A") { # created
1658                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1659                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1660                        $mode_chng   .= "]</span>";
1661                        print "<td>" .
1662                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1663                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1664                                      -class => "list"}, esc_html($diff{'file'})) .
1665                              "</td>\n" .
1666                              "<td>$mode_chng</td>\n" .
1667                              "<td class=\"link\">" .
1668                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1669                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1670                                      "blob");
1671                        if ($action eq 'commitdiff') {
1672                                # link to patch
1673                                $patchno++;
1674                                print " | " .
1675                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1676                        }
1677                        print "</td>\n";
1678
1679                } elsif ($diff{'status'} eq "D") { # deleted
1680                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1681                        print "<td>" .
1682                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1683                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1684                                       -class => "list"}, esc_html($diff{'file'})) .
1685                              "</td>\n" .
1686                              "<td>$mode_chng</td>\n" .
1687                              "<td class=\"link\">" .
1688                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1689                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1690                                      "blob") .
1691                              " | ";
1692                        if ($action eq 'commitdiff') {
1693                                # link to patch
1694                                $patchno++;
1695                                print " | " .
1696                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1697                        }
1698                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1699                                                     file_name=>$diff{'file'})},
1700                                      "history") .
1701                              "</td>\n";
1702
1703                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1704                        my $mode_chnge = "";
1705                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1706                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1707                                if ($from_file_type != $to_file_type) {
1708                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1709                                }
1710                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1711                                        if ($from_mode_str && $to_mode_str) {
1712                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1713                                        } elsif ($to_mode_str) {
1714                                                $mode_chnge .= " mode: $to_mode_str";
1715                                        }
1716                                }
1717                                $mode_chnge .= "]</span>\n";
1718                        }
1719                        print "<td>";
1720                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1721                                print $cgi->a({-href => href(action=>"blobdiff",
1722                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1723                                                             hash_base=>$hash, hash_parent_base=>$parent,
1724                                                             file_name=>$diff{'file'}),
1725                                              -class => "list"}, esc_html($diff{'file'}));
1726                        } else { # only mode changed
1727                                print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1728                                                             hash_base=>$hash, file_name=>$diff{'file'}),
1729                                              -class => "list"}, esc_html($diff{'file'}));
1730                        }
1731                        print "</td>\n" .
1732                              "<td>$mode_chnge</td>\n" .
1733                              "<td class=\"link\">" .
1734                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1735                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1736                                      "blob");
1737                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1738                                if ($action eq 'commitdiff') {
1739                                        # link to patch
1740                                        $patchno++;
1741                                        print " | " .
1742                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1743                                } else {
1744                                        print " | " .
1745                                                $cgi->a({-href => href(action=>"blobdiff",
1746                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1747                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1748                                                                       file_name=>$diff{'file'})},
1749                                                        "diff");
1750                                }
1751                        }
1752                        print " | " .
1753                                $cgi->a({-href => href(action=>"history",
1754                                                       hash_base=>$hash, file_name=>$diff{'file'})},
1755                                        "history");
1756                        print "</td>\n";
1757
1758                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1759                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1760                        my $nstatus = $status_name{$diff{'status'}};
1761                        my $mode_chng = "";
1762                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1763                                # mode also for directories, so we cannot use $to_mode_str
1764                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1765                        }
1766                        print "<td>" .
1767                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1768                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1769                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1770                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1771                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1772                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1773                                      -class => "list"}, esc_html($diff{'from_file'})) .
1774                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1775                              "<td class=\"link\">" .
1776                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1777                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1778                                      "blob");
1779                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1780                                if ($action eq 'commitdiff') {
1781                                        # link to patch
1782                                        $patchno++;
1783                                        print " | " .
1784                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1785                                } else {
1786                                        print " | " .
1787                                                $cgi->a({-href => href(action=>"blobdiff",
1788                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1789                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1790                                                                       file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1791                                                        "diff");
1792                                }
1793                        }
1794                        print "</td>\n";
1795
1796                } # we should not encounter Unmerged (U) or Unknown (X) status
1797                print "</tr>\n";
1798        }
1799        print "</table>\n";
1800}
1801
1802sub git_patchset_body {
1803        my ($fd, $difftree, $hash, $hash_parent) = @_;
1804
1805        my $patch_idx = 0;
1806        my $in_header = 0;
1807        my $patch_found = 0;
1808        my $diffinfo;
1809
1810        print "<div class=\"patchset\">\n";
1811
1812        LINE:
1813        while (my $patch_line = <$fd>) {
1814                chomp $patch_line;
1815
1816                if ($patch_line =~ m/^diff /) { # "git diff" header
1817                        # beginning of patch (in patchset)
1818                        if ($patch_found) {
1819                                # close previous patch
1820                                print "</div>\n"; # class="patch"
1821                        } else {
1822                                # first patch in patchset
1823                                $patch_found = 1;
1824                        }
1825                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1826
1827                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1828                                $diffinfo = $difftree->[$patch_idx];
1829                        } else {
1830                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1831                        }
1832                        $patch_idx++;
1833
1834                        # for now, no extended header, hence we skip empty patches
1835                        # companion to  next LINE if $in_header;
1836                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1837                                $in_header = 1;
1838                                next LINE;
1839                        }
1840
1841                        if ($diffinfo->{'status'} eq "A") { # added
1842                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1843                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1844                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1845                                              $diffinfo->{'to_id'}) . "(new)" .
1846                                      "</div>\n"; # class="diff_info"
1847
1848                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1849                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1850                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1851                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1852                                              $diffinfo->{'from_id'}) . "(deleted)" .
1853                                      "</div>\n"; # class="diff_info"
1854
1855                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1856                                 $diffinfo->{'status'} eq "C" || # copied
1857                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1858                                print "<div class=\"diff_info\">" .
1859                                      file_type($diffinfo->{'from_mode'}) . ":" .
1860                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1861                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1862                                              $diffinfo->{'from_id'}) .
1863                                      " -> " .
1864                                      file_type($diffinfo->{'to_mode'}) . ":" .
1865                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1866                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1867                                              $diffinfo->{'to_id'});
1868                                print "</div>\n"; # class="diff_info"
1869
1870                        } else { # modified, mode changed, ...
1871                                print "<div class=\"diff_info\">" .
1872                                      file_type($diffinfo->{'from_mode'}) . ":" .
1873                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1874                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1875                                              $diffinfo->{'from_id'}) .
1876                                      " -> " .
1877                                      file_type($diffinfo->{'to_mode'}) . ":" .
1878                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1879                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1880                                              $diffinfo->{'to_id'});
1881                                print "</div>\n"; # class="diff_info"
1882                        }
1883
1884                        #print "<div class=\"diff extended_header\">\n";
1885                        $in_header = 1;
1886                        next LINE;
1887                } # start of patch in patchset
1888
1889
1890                if ($in_header && $patch_line =~ m/^---/) {
1891                        #print "</div>\n"; # class="diff extended_header"
1892                        $in_header = 0;
1893
1894                        my $file = $diffinfo->{'from_file'};
1895                        $file  ||= $diffinfo->{'file'};
1896                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1897                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1898                                        -class => "list"}, esc_html($file));
1899                        $patch_line =~ s|a/.*$|a/$file|g;
1900                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1901
1902                        $patch_line = <$fd>;
1903                        chomp $patch_line;
1904
1905                        #$patch_line =~ m/^+++/;
1906                        $file    = $diffinfo->{'to_file'};
1907                        $file  ||= $diffinfo->{'file'};
1908                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1909                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1910                                        -class => "list"}, esc_html($file));
1911                        $patch_line =~ s|b/.*|b/$file|g;
1912                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1913
1914                        next LINE;
1915                }
1916                next LINE if $in_header;
1917
1918                print format_diff_line($patch_line);
1919        }
1920        print "</div>\n" if $patch_found; # class="patch"
1921
1922        print "</div>\n"; # class="patchset"
1923}
1924
1925# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1926
1927sub git_shortlog_body {
1928        # uses global variable $project
1929        my ($revlist, $from, $to, $refs, $extra) = @_;
1930
1931        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1932        my $have_snapshot = (defined $ctype && defined $suffix);
1933
1934        $from = 0 unless defined $from;
1935        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1936
1937        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1938        my $alternate = 0;
1939        for (my $i = $from; $i <= $to; $i++) {
1940                my $commit = $revlist->[$i];
1941                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1942                my $ref = format_ref_marker($refs, $commit);
1943                my %co = parse_commit($commit);
1944                if ($alternate) {
1945                        print "<tr class=\"dark\">\n";
1946                } else {
1947                        print "<tr class=\"light\">\n";
1948                }
1949                $alternate ^= 1;
1950                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1951                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1952                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1953                      "<td>";
1954                print format_subject_html($co{'title'}, $co{'title_short'},
1955                                          href(action=>"commit", hash=>$commit), $ref);
1956                print "</td>\n" .
1957                      "<td class=\"link\">" .
1958                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1959                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1960                if ($have_snapshot) {
1961                        print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1962                }
1963                print "</td>\n" .
1964                      "</tr>\n";
1965        }
1966        if (defined $extra) {
1967                print "<tr>\n" .
1968                      "<td colspan=\"4\">$extra</td>\n" .
1969                      "</tr>\n";
1970        }
1971        print "</table>\n";
1972}
1973
1974sub git_history_body {
1975        # Warning: assumes constant type (blob or tree) during history
1976        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
1977
1978        $from = 0 unless defined $from;
1979        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
1980
1981        print "<table class=\"history\" cellspacing=\"0\">\n";
1982        my $alternate = 0;
1983        for (my $i = $from; $i <= $to; $i++) {
1984                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
1985                        next;
1986                }
1987
1988                my $commit = $1;
1989                my %co = parse_commit($commit);
1990                if (!%co) {
1991                        next;
1992                }
1993
1994                my $ref = format_ref_marker($refs, $commit);
1995
1996                if ($alternate) {
1997                        print "<tr class=\"dark\">\n";
1998                } else {
1999                        print "<tr class=\"light\">\n";
2000                }
2001                $alternate ^= 1;
2002                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2003                      # shortlog uses      chop_str($co{'author_name'}, 10)
2004                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2005                      "<td>";
2006                # originally git_history used chop_str($co{'title'}, 50)
2007                print format_subject_html($co{'title'}, $co{'title_short'},
2008                                          href(action=>"commit", hash=>$commit), $ref);
2009                print "</td>\n" .
2010                      "<td class=\"link\">" .
2011                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2012                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2013                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2014
2015                if ($ftype eq 'blob') {
2016                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2017                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2018                        if (defined $blob_current && defined $blob_parent &&
2019                                        $blob_current ne $blob_parent) {
2020                                print " | " .
2021                                        $cgi->a({-href => href(action=>"blobdiff",
2022                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2023                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2024                                                               file_name=>$file_name)},
2025                                                "diff to current");
2026                        }
2027                }
2028                print "</td>\n" .
2029                      "</tr>\n";
2030        }
2031        if (defined $extra) {
2032                print "<tr>\n" .
2033                      "<td colspan=\"4\">$extra</td>\n" .
2034                      "</tr>\n";
2035        }
2036        print "</table>\n";
2037}
2038
2039sub git_tags_body {
2040        # uses global variable $project
2041        my ($taglist, $from, $to, $extra) = @_;
2042        $from = 0 unless defined $from;
2043        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2044
2045        print "<table class=\"tags\" cellspacing=\"0\">\n";
2046        my $alternate = 0;
2047        for (my $i = $from; $i <= $to; $i++) {
2048                my $entry = $taglist->[$i];
2049                my %tag = %$entry;
2050                my $comment_lines = $tag{'comment'};
2051                my $comment = shift @$comment_lines;
2052                my $comment_short;
2053                if (defined $comment) {
2054                        $comment_short = chop_str($comment, 30, 5);
2055                }
2056                if ($alternate) {
2057                        print "<tr class=\"dark\">\n";
2058                } else {
2059                        print "<tr class=\"light\">\n";
2060                }
2061                $alternate ^= 1;
2062                print "<td><i>$tag{'age'}</i></td>\n" .
2063                      "<td>" .
2064                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2065                               -class => "list name"}, esc_html($tag{'name'})) .
2066                      "</td>\n" .
2067                      "<td>";
2068                if (defined $comment) {
2069                        print format_subject_html($comment, $comment_short,
2070                                                  href(action=>"tag", hash=>$tag{'id'}));
2071                }
2072                print "</td>\n" .
2073                      "<td class=\"selflink\">";
2074                if ($tag{'type'} eq "tag") {
2075                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2076                } else {
2077                        print "&nbsp;";
2078                }
2079                print "</td>\n" .
2080                      "<td class=\"link\">" . " | " .
2081                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2082                if ($tag{'reftype'} eq "commit") {
2083                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2084                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2085                } elsif ($tag{'reftype'} eq "blob") {
2086                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2087                }
2088                print "</td>\n" .
2089                      "</tr>";
2090        }
2091        if (defined $extra) {
2092                print "<tr>\n" .
2093                      "<td colspan=\"5\">$extra</td>\n" .
2094                      "</tr>\n";
2095        }
2096        print "</table>\n";
2097}
2098
2099sub git_heads_body {
2100        # uses global variable $project
2101        my ($taglist, $head, $from, $to, $extra) = @_;
2102        $from = 0 unless defined $from;
2103        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2104
2105        print "<table class=\"heads\" cellspacing=\"0\">\n";
2106        my $alternate = 0;
2107        for (my $i = $from; $i <= $to; $i++) {
2108                my $entry = $taglist->[$i];
2109                my %tag = %$entry;
2110                my $curr = $tag{'id'} eq $head;
2111                if ($alternate) {
2112                        print "<tr class=\"dark\">\n";
2113                } else {
2114                        print "<tr class=\"light\">\n";
2115                }
2116                $alternate ^= 1;
2117                print "<td><i>$tag{'age'}</i></td>\n" .
2118                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2119                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2120                               -class => "list name"},esc_html($tag{'name'})) .
2121                      "</td>\n" .
2122                      "<td class=\"link\">" .
2123                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2124                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2125                      "</td>\n" .
2126                      "</tr>";
2127        }
2128        if (defined $extra) {
2129                print "<tr>\n" .
2130                      "<td colspan=\"3\">$extra</td>\n" .
2131                      "</tr>\n";
2132        }
2133        print "</table>\n";
2134}
2135
2136## ======================================================================
2137## ======================================================================
2138## actions
2139
2140sub git_project_list {
2141        my $order = $cgi->param('o');
2142        if (defined $order && $order !~ m/project|descr|owner|age/) {
2143                die_error(undef, "Unknown order parameter");
2144        }
2145
2146        my @list = git_get_projects_list();
2147        my @projects;
2148        if (!@list) {
2149                die_error(undef, "No projects found");
2150        }
2151        foreach my $pr (@list) {
2152                my $head = git_get_head_hash($pr->{'path'});
2153                if (!defined $head) {
2154                        next;
2155                }
2156                $git_dir = "$projectroot/$pr->{'path'}";
2157                my %co = parse_commit($head);
2158                if (!%co) {
2159                        next;
2160                }
2161                $pr->{'commit'} = \%co;
2162                if (!defined $pr->{'descr'}) {
2163                        my $descr = git_get_project_description($pr->{'path'}) || "";
2164                        $pr->{'descr'} = chop_str($descr, 25, 5);
2165                }
2166                if (!defined $pr->{'owner'}) {
2167                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2168                }
2169                push @projects, $pr;
2170        }
2171
2172        git_header_html();
2173        if (-f $home_text) {
2174                print "<div class=\"index_include\">\n";
2175                open (my $fd, $home_text);
2176                print <$fd>;
2177                close $fd;
2178                print "</div>\n";
2179        }
2180        print "<table class=\"project_list\">\n" .
2181              "<tr>\n";
2182        $order ||= "project";
2183        if ($order eq "project") {
2184                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2185                print "<th>Project</th>\n";
2186        } else {
2187                print "<th>" .
2188                      $cgi->a({-href => href(project=>undef, order=>'project'),
2189                               -class => "header"}, "Project") .
2190                      "</th>\n";
2191        }
2192        if ($order eq "descr") {
2193                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2194                print "<th>Description</th>\n";
2195        } else {
2196                print "<th>" .
2197                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2198                               -class => "header"}, "Description") .
2199                      "</th>\n";
2200        }
2201        if ($order eq "owner") {
2202                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2203                print "<th>Owner</th>\n";
2204        } else {
2205                print "<th>" .
2206                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2207                               -class => "header"}, "Owner") .
2208                      "</th>\n";
2209        }
2210        if ($order eq "age") {
2211                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2212                print "<th>Last Change</th>\n";
2213        } else {
2214                print "<th>" .
2215                      $cgi->a({-href => href(project=>undef, order=>'age'),
2216                               -class => "header"}, "Last Change") .
2217                      "</th>\n";
2218        }
2219        print "<th></th>\n" .
2220              "</tr>\n";
2221        my $alternate = 0;
2222        foreach my $pr (@projects) {
2223                if ($alternate) {
2224                        print "<tr class=\"dark\">\n";
2225                } else {
2226                        print "<tr class=\"light\">\n";
2227                }
2228                $alternate ^= 1;
2229                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2230                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2231                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2232                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2233                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2234                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2235                      "<td class=\"link\">" .
2236                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2237                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2238                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2239                      "</td>\n" .
2240                      "</tr>\n";
2241        }
2242        print "</table>\n";
2243        git_footer_html();
2244}
2245
2246sub git_project_index {
2247        my @projects = git_get_projects_list();
2248
2249        print $cgi->header(
2250                -type => 'text/plain',
2251                -charset => 'utf-8',
2252                -content_disposition => qq(inline; filename="index.aux"));
2253
2254        foreach my $pr (@projects) {
2255                if (!exists $pr->{'owner'}) {
2256                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2257                }
2258
2259                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2260                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2261                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2262                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2263                $path  =~ s/ /\+/g;
2264                $owner =~ s/ /\+/g;
2265
2266                print "$path $owner\n";
2267        }
2268}
2269
2270sub git_summary {
2271        my $descr = git_get_project_description($project) || "none";
2272        my $head = git_get_head_hash($project);
2273        my %co = parse_commit($head);
2274        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2275
2276        my $owner = git_get_project_owner($project);
2277
2278        my $refs = git_get_references();
2279        git_header_html();
2280        git_print_page_nav('summary','', $head);
2281
2282        print "<div class=\"title\">&nbsp;</div>\n";
2283        print "<table cellspacing=\"0\">\n" .
2284              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2285              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2286              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2287        # use per project git URL list in $projectroot/$project/cloneurl
2288        # or make project git URL from git base URL and project name
2289        my $url_tag = "URL";
2290        my @url_list = git_get_project_url_list($project);
2291        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2292        foreach my $git_url (@url_list) {
2293                next unless $git_url;
2294                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2295                $url_tag = "";
2296        }
2297        print "</table>\n";
2298
2299        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2300                git_get_head_hash($project)
2301                or die_error(undef, "Open git-rev-list failed");
2302        my @revlist = map { chomp; $_ } <$fd>;
2303        close $fd;
2304        git_print_header_div('shortlog');
2305        git_shortlog_body(\@revlist, 0, 15, $refs,
2306                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2307
2308        my $taglist = git_get_refs_list("refs/tags");
2309        if (defined @$taglist) {
2310                git_print_header_div('tags');
2311                git_tags_body($taglist, 0, 15,
2312                              $cgi->a({-href => href(action=>"tags")}, "..."));
2313        }
2314
2315        my $headlist = git_get_refs_list("refs/heads");
2316        if (defined @$headlist) {
2317                git_print_header_div('heads');
2318                git_heads_body($headlist, $head, 0, 15,
2319                               $cgi->a({-href => href(action=>"heads")}, "..."));
2320        }
2321
2322        git_footer_html();
2323}
2324
2325sub git_tag {
2326        my $head = git_get_head_hash($project);
2327        git_header_html();
2328        git_print_page_nav('','', $head,undef,$head);
2329        my %tag = parse_tag($hash);
2330        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2331        print "<div class=\"title_text\">\n" .
2332              "<table cellspacing=\"0\">\n" .
2333              "<tr>\n" .
2334              "<td>object</td>\n" .
2335              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2336                               $tag{'object'}) . "</td>\n" .
2337              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2338                                              $tag{'type'}) . "</td>\n" .
2339              "</tr>\n";
2340        if (defined($tag{'author'})) {
2341                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2342                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2343                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2344                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2345                        "</td></tr>\n";
2346        }
2347        print "</table>\n\n" .
2348              "</div>\n";
2349        print "<div class=\"page_body\">";
2350        my $comment = $tag{'comment'};
2351        foreach my $line (@$comment) {
2352                print esc_html($line) . "<br/>\n";
2353        }
2354        print "</div>\n";
2355        git_footer_html();
2356}
2357
2358sub git_blame2 {
2359        my $fd;
2360        my $ftype;
2361
2362        my ($have_blame) = gitweb_check_feature('blame');
2363        if (!$have_blame) {
2364                die_error('403 Permission denied', "Permission denied");
2365        }
2366        die_error('404 Not Found', "File name not defined") if (!$file_name);
2367        $hash_base ||= git_get_head_hash($project);
2368        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2369        my %co = parse_commit($hash_base)
2370                or die_error(undef, "Reading commit failed");
2371        if (!defined $hash) {
2372                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2373                        or die_error(undef, "Error looking up file");
2374        }
2375        $ftype = git_get_type($hash);
2376        if ($ftype !~ "blob") {
2377                die_error("400 Bad Request", "Object is not a blob");
2378        }
2379        open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2380                or die_error(undef, "Open git-blame failed");
2381        git_header_html();
2382        my $formats_nav =
2383                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2384                        "blob") .
2385                " | " .
2386                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2387                        "head");
2388        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2389        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2390        git_print_page_path($file_name, $ftype, $hash_base);
2391        my @rev_color = (qw(light2 dark2));
2392        my $num_colors = scalar(@rev_color);
2393        my $current_color = 0;
2394        my $last_rev;
2395        print <<HTML;
2396<div class="page_body">
2397<table class="blame">
2398<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2399HTML
2400        while (<$fd>) {
2401                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2402                my $full_rev = $1;
2403                my $rev = substr($full_rev, 0, 8);
2404                my $lineno = $2;
2405                my $data = $3;
2406
2407                if (!defined $last_rev) {
2408                        $last_rev = $full_rev;
2409                } elsif ($last_rev ne $full_rev) {
2410                        $last_rev = $full_rev;
2411                        $current_color = ++$current_color % $num_colors;
2412                }
2413                print "<tr class=\"$rev_color[$current_color]\">\n";
2414                print "<td class=\"sha1\">" .
2415                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2416                                esc_html($rev)) . "</td>\n";
2417                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2418                      esc_html($lineno) . "</a></td>\n";
2419                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2420                print "</tr>\n";
2421        }
2422        print "</table>\n";
2423        print "</div>";
2424        close $fd
2425                or print "Reading blob failed\n";
2426        git_footer_html();
2427}
2428
2429sub git_blame {
2430        my $fd;
2431
2432        my ($have_blame) = gitweb_check_feature('blame');
2433        if (!$have_blame) {
2434                die_error('403 Permission denied', "Permission denied");
2435        }
2436        die_error('404 Not Found', "File name not defined") if (!$file_name);
2437        $hash_base ||= git_get_head_hash($project);
2438        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2439        my %co = parse_commit($hash_base)
2440                or die_error(undef, "Reading commit failed");
2441        if (!defined $hash) {
2442                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2443                        or die_error(undef, "Error lookup file");
2444        }
2445        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2446                or die_error(undef, "Open git-annotate failed");
2447        git_header_html();
2448        my $formats_nav =
2449                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2450                        "blob") .
2451                " | " .
2452                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2453                        "head");
2454        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2455        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2456        git_print_page_path($file_name, 'blob', $hash_base);
2457        print "<div class=\"page_body\">\n";
2458        print <<HTML;
2459<table class="blame">
2460  <tr>
2461    <th>Commit</th>
2462    <th>Age</th>
2463    <th>Author</th>
2464    <th>Line</th>
2465    <th>Data</th>
2466  </tr>
2467HTML
2468        my @line_class = (qw(light dark));
2469        my $line_class_len = scalar (@line_class);
2470        my $line_class_num = $#line_class;
2471        while (my $line = <$fd>) {
2472                my $long_rev;
2473                my $short_rev;
2474                my $author;
2475                my $time;
2476                my $lineno;
2477                my $data;
2478                my $age;
2479                my $age_str;
2480                my $age_class;
2481
2482                chomp $line;
2483                $line_class_num = ($line_class_num + 1) % $line_class_len;
2484
2485                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2486                        $long_rev = $1;
2487                        $author   = $2;
2488                        $time     = $3;
2489                        $lineno   = $4;
2490                        $data     = $5;
2491                } else {
2492                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2493                        next;
2494                }
2495                $short_rev  = substr ($long_rev, 0, 8);
2496                $age        = time () - $time;
2497                $age_str    = age_string ($age);
2498                $age_str    =~ s/ /&nbsp;/g;
2499                $age_class  = age_class($age);
2500                $author     = esc_html ($author);
2501                $author     =~ s/ /&nbsp;/g;
2502
2503                $data = untabify($data);
2504                $data = esc_html ($data);
2505
2506                print <<HTML;
2507  <tr class="$line_class[$line_class_num]">
2508    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2509    <td class="$age_class">$age_str</td>
2510    <td>$author</td>
2511    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2512    <td class="pre">$data</td>
2513  </tr>
2514HTML
2515        } # while (my $line = <$fd>)
2516        print "</table>\n\n";
2517        close $fd
2518                or print "Reading blob failed.\n";
2519        print "</div>";
2520        git_footer_html();
2521}
2522
2523sub git_tags {
2524        my $head = git_get_head_hash($project);
2525        git_header_html();
2526        git_print_page_nav('','', $head,undef,$head);
2527        git_print_header_div('summary', $project);
2528
2529        my $taglist = git_get_refs_list("refs/tags");
2530        if (defined @$taglist) {
2531                git_tags_body($taglist);
2532        }
2533        git_footer_html();
2534}
2535
2536sub git_heads {
2537        my $head = git_get_head_hash($project);
2538        git_header_html();
2539        git_print_page_nav('','', $head,undef,$head);
2540        git_print_header_div('summary', $project);
2541
2542        my $taglist = git_get_refs_list("refs/heads");
2543        if (defined @$taglist) {
2544                git_heads_body($taglist, $head);
2545        }
2546        git_footer_html();
2547}
2548
2549sub git_blob_plain {
2550        my $expires;
2551
2552        if (!defined $hash) {
2553                if (defined $file_name) {
2554                        my $base = $hash_base || git_get_head_hash($project);
2555                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2556                                or die_error(undef, "Error lookup file");
2557                } else {
2558                        die_error(undef, "No file name defined");
2559                }
2560        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2561                # blobs defined by non-textual hash id's can be cached
2562                $expires = "+1d";
2563        }
2564
2565        my $type = shift;
2566        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2567                or die_error(undef, "Couldn't cat $file_name, $hash");
2568
2569        $type ||= blob_mimetype($fd, $file_name);
2570
2571        # save as filename, even when no $file_name is given
2572        my $save_as = "$hash";
2573        if (defined $file_name) {
2574                $save_as = $file_name;
2575        } elsif ($type =~ m/^text\//) {
2576                $save_as .= '.txt';
2577        }
2578
2579        print $cgi->header(
2580                -type => "$type",
2581                -expires=>$expires,
2582                -content_disposition => "inline; filename=\"$save_as\"");
2583        undef $/;
2584        binmode STDOUT, ':raw';
2585        print <$fd>;
2586        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2587        $/ = "\n";
2588        close $fd;
2589}
2590
2591sub git_blob {
2592        my $expires;
2593
2594        if (!defined $hash) {
2595                if (defined $file_name) {
2596                        my $base = $hash_base || git_get_head_hash($project);
2597                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2598                                or die_error(undef, "Error lookup file");
2599                } else {
2600                        die_error(undef, "No file name defined");
2601                }
2602        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2603                # blobs defined by non-textual hash id's can be cached
2604                $expires = "+1d";
2605        }
2606
2607        my ($have_blame) = gitweb_check_feature('blame');
2608        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2609                or die_error(undef, "Couldn't cat $file_name, $hash");
2610        my $mimetype = blob_mimetype($fd, $file_name);
2611        if ($mimetype !~ m/^text\//) {
2612                close $fd;
2613                return git_blob_plain($mimetype);
2614        }
2615        git_header_html(undef, $expires);
2616        my $formats_nav = '';
2617        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2618                if (defined $file_name) {
2619                        if ($have_blame) {
2620                                $formats_nav .=
2621                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2622                                                               hash=>$hash, file_name=>$file_name)},
2623                                                "blame") .
2624                                        " | ";
2625                        }
2626                        $formats_nav .=
2627                                $cgi->a({-href => href(action=>"blob_plain",
2628                                                       hash=>$hash, file_name=>$file_name)},
2629                                        "plain") .
2630                                " | " .
2631                                $cgi->a({-href => href(action=>"blob",
2632                                                       hash_base=>"HEAD", file_name=>$file_name)},
2633                                        "head");
2634                } else {
2635                        $formats_nav .=
2636                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2637                }
2638                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2639                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2640        } else {
2641                print "<div class=\"page_nav\">\n" .
2642                      "<br/><br/></div>\n" .
2643                      "<div class=\"title\">$hash</div>\n";
2644        }
2645        git_print_page_path($file_name, "blob", $hash_base);
2646        print "<div class=\"page_body\">\n";
2647        my $nr;
2648        while (my $line = <$fd>) {
2649                chomp $line;
2650                $nr++;
2651                $line = untabify($line);
2652                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2653                       $nr, $nr, $nr, esc_html($line);
2654        }
2655        close $fd
2656                or print "Reading blob failed.\n";
2657        print "</div>";
2658        git_footer_html();
2659}
2660
2661sub git_tree {
2662        if (!defined $hash) {
2663                $hash = git_get_head_hash($project);
2664                if (defined $file_name) {
2665                        my $base = $hash_base || $hash;
2666                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2667                }
2668                if (!defined $hash_base) {
2669                        $hash_base = $hash;
2670                }
2671        }
2672        $/ = "\0";
2673        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2674                or die_error(undef, "Open git-ls-tree failed");
2675        my @entries = map { chomp; $_ } <$fd>;
2676        close $fd or die_error(undef, "Reading tree failed");
2677        $/ = "\n";
2678
2679        my $refs = git_get_references();
2680        my $ref = format_ref_marker($refs, $hash_base);
2681        git_header_html();
2682        my $base = "";
2683        my ($have_blame) = gitweb_check_feature('blame');
2684        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2685                git_print_page_nav('tree','', $hash_base);
2686                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2687        } else {
2688                undef $hash_base;
2689                print "<div class=\"page_nav\">\n";
2690                print "<br/><br/></div>\n";
2691                print "<div class=\"title\">$hash</div>\n";
2692        }
2693        if (defined $file_name) {
2694                $base = esc_html("$file_name/");
2695        }
2696        git_print_page_path($file_name, 'tree', $hash_base);
2697        print "<div class=\"page_body\">\n";
2698        print "<table cellspacing=\"0\">\n";
2699        my $alternate = 0;
2700        foreach my $line (@entries) {
2701                my %t = parse_ls_tree_line($line, -z => 1);
2702
2703                if ($alternate) {
2704                        print "<tr class=\"dark\">\n";
2705                } else {
2706                        print "<tr class=\"light\">\n";
2707                }
2708                $alternate ^= 1;
2709
2710                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2711
2712                print "</tr>\n";
2713        }
2714        print "</table>\n" .
2715              "</div>";
2716        git_footer_html();
2717}
2718
2719sub git_snapshot {
2720
2721        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2722        my $have_snapshot = (defined $ctype && defined $suffix);
2723        if (!$have_snapshot) {
2724                die_error('403 Permission denied', "Permission denied");
2725        }
2726
2727        if (!defined $hash) {
2728                $hash = git_get_head_hash($project);
2729        }
2730
2731        my $filename = basename($project) . "-$hash.tar.$suffix";
2732
2733        print $cgi->header(-type => 'application/x-tar',
2734                           -content_encoding => $ctype,
2735                           -content_disposition => "inline; filename=\"$filename\"",
2736                           -status => '200 OK');
2737
2738        my $git_command = git_cmd_str();
2739        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2740                die_error(undef, "Execute git-tar-tree failed.");
2741        binmode STDOUT, ':raw';
2742        print <$fd>;
2743        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2744        close $fd;
2745
2746}
2747
2748sub git_log {
2749        my $head = git_get_head_hash($project);
2750        if (!defined $hash) {
2751                $hash = $head;
2752        }
2753        if (!defined $page) {
2754                $page = 0;
2755        }
2756        my $refs = git_get_references();
2757
2758        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2759        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2760                or die_error(undef, "Open git-rev-list failed");
2761        my @revlist = map { chomp; $_ } <$fd>;
2762        close $fd;
2763
2764        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2765
2766        git_header_html();
2767        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2768
2769        if (!@revlist) {
2770                my %co = parse_commit($hash);
2771
2772                git_print_header_div('summary', $project);
2773                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2774        }
2775        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2776                my $commit = $revlist[$i];
2777                my $ref = format_ref_marker($refs, $commit);
2778                my %co = parse_commit($commit);
2779                next if !%co;
2780                my %ad = parse_date($co{'author_epoch'});
2781                git_print_header_div('commit',
2782                               "<span class=\"age\">$co{'age_string'}</span>" .
2783                               esc_html($co{'title'}) . $ref,
2784                               $commit);
2785                print "<div class=\"title_text\">\n" .
2786                      "<div class=\"log_link\">\n" .
2787                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2788                      " | " .
2789                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2790                      "<br/>\n" .
2791                      "</div>\n" .
2792                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2793                      "</div>\n";
2794
2795                print "<div class=\"log_body\">\n";
2796                git_print_simplified_log($co{'comment'});
2797                print "</div>\n";
2798        }
2799        git_footer_html();
2800}
2801
2802sub git_commit {
2803        my %co = parse_commit($hash);
2804        if (!%co) {
2805                die_error(undef, "Unknown commit object");
2806        }
2807        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2808        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2809
2810        my $parent = $co{'parent'};
2811        if (!defined $parent) {
2812                $parent = "--root";
2813        }
2814        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2815                or die_error(undef, "Open git-diff-tree failed");
2816        my @difftree = map { chomp; $_ } <$fd>;
2817        close $fd or die_error(undef, "Reading git-diff-tree failed");
2818
2819        # non-textual hash id's can be cached
2820        my $expires;
2821        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2822                $expires = "+1d";
2823        }
2824        my $refs = git_get_references();
2825        my $ref = format_ref_marker($refs, $co{'id'});
2826
2827        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2828        my $have_snapshot = (defined $ctype && defined $suffix);
2829
2830        my $formats_nav = '';
2831        if (defined $file_name && defined $co{'parent'}) {
2832                my $parent = $co{'parent'};
2833                $formats_nav .=
2834                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2835                                "blame");
2836        }
2837        git_header_html(undef, $expires);
2838        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2839                           $hash, $co{'tree'}, $hash,
2840                           $formats_nav);
2841
2842        if (defined $co{'parent'}) {
2843                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2844        } else {
2845                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2846        }
2847        print "<div class=\"title_text\">\n" .
2848              "<table cellspacing=\"0\">\n";
2849        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2850              "<tr>" .
2851              "<td></td><td> $ad{'rfc2822'}";
2852        if ($ad{'hour_local'} < 6) {
2853                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2854                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2855        } else {
2856                printf(" (%02d:%02d %s)",
2857                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2858        }
2859        print "</td>" .
2860              "</tr>\n";
2861        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2862        print "<tr><td></td><td> $cd{'rfc2822'}" .
2863              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2864              "</td></tr>\n";
2865        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2866        print "<tr>" .
2867              "<td>tree</td>" .
2868              "<td class=\"sha1\">" .
2869              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2870                       class => "list"}, $co{'tree'}) .
2871              "</td>" .
2872              "<td class=\"link\">" .
2873              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2874                      "tree");
2875        if ($have_snapshot) {
2876                print " | " .
2877                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2878        }
2879        print "</td>" .
2880              "</tr>\n";
2881        my $parents = $co{'parents'};
2882        foreach my $par (@$parents) {
2883                print "<tr>" .
2884                      "<td>parent</td>" .
2885                      "<td class=\"sha1\">" .
2886                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2887                               class => "list"}, $par) .
2888                      "</td>" .
2889                      "<td class=\"link\">" .
2890                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2891                      " | " .
2892                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2893                      "</td>" .
2894                      "</tr>\n";
2895        }
2896        print "</table>".
2897              "</div>\n";
2898
2899        print "<div class=\"page_body\">\n";
2900        git_print_log($co{'comment'});
2901        print "</div>\n";
2902
2903        git_difftree_body(\@difftree, $hash, $parent);
2904
2905        git_footer_html();
2906}
2907
2908sub git_blobdiff {
2909        my $format = shift || 'html';
2910
2911        my $fd;
2912        my @difftree;
2913        my %diffinfo;
2914        my $expires;
2915
2916        # preparing $fd and %diffinfo for git_patchset_body
2917        # new style URI
2918        if (defined $hash_base && defined $hash_parent_base) {
2919                if (defined $file_name) {
2920                        # read raw output
2921                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2922                                "--", $file_name
2923                                or die_error(undef, "Open git-diff-tree failed");
2924                        @difftree = map { chomp; $_ } <$fd>;
2925                        close $fd
2926                                or die_error(undef, "Reading git-diff-tree failed");
2927                        @difftree
2928                                or die_error('404 Not Found', "Blob diff not found");
2929
2930                } elsif (defined $hash &&
2931                         $hash =~ /[0-9a-fA-F]{40}/) {
2932                        # try to find filename from $hash
2933
2934                        # read filtered raw output
2935                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2936                                or die_error(undef, "Open git-diff-tree failed");
2937                        @difftree =
2938                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2939                                # $hash == to_id
2940                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2941                                map { chomp; $_ } <$fd>;
2942                        close $fd
2943                                or die_error(undef, "Reading git-diff-tree failed");
2944                        @difftree
2945                                or die_error('404 Not Found', "Blob diff not found");
2946
2947                } else {
2948                        die_error('404 Not Found', "Missing one of the blob diff parameters");
2949                }
2950
2951                if (@difftree > 1) {
2952                        die_error('404 Not Found', "Ambiguous blob diff specification");
2953                }
2954
2955                %diffinfo = parse_difftree_raw_line($difftree[0]);
2956                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2957                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2958
2959                $hash_parent ||= $diffinfo{'from_id'};
2960                $hash        ||= $diffinfo{'to_id'};
2961
2962                # non-textual hash id's can be cached
2963                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2964                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2965                        $expires = '+1d';
2966                }
2967
2968                # open patch output
2969                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2970                        '-p', $hash_parent_base, $hash_base,
2971                        "--", $file_name
2972                        or die_error(undef, "Open git-diff-tree failed");
2973        }
2974
2975        # old/legacy style URI
2976        if (!%diffinfo && # if new style URI failed
2977            defined $hash && defined $hash_parent) {
2978                # fake git-diff-tree raw output
2979                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
2980                $diffinfo{'from_id'} = $hash_parent;
2981                $diffinfo{'to_id'}   = $hash;
2982                if (defined $file_name) {
2983                        if (defined $file_parent) {
2984                                $diffinfo{'status'} = '2';
2985                                $diffinfo{'from_file'} = $file_parent;
2986                                $diffinfo{'to_file'}   = $file_name;
2987                        } else { # assume not renamed
2988                                $diffinfo{'status'} = '1';
2989                                $diffinfo{'from_file'} = $file_name;
2990                                $diffinfo{'to_file'}   = $file_name;
2991                        }
2992                } else { # no filename given
2993                        $diffinfo{'status'} = '2';
2994                        $diffinfo{'from_file'} = $hash_parent;
2995                        $diffinfo{'to_file'}   = $hash;
2996                }
2997
2998                # non-textual hash id's can be cached
2999                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3000                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3001                        $expires = '+1d';
3002                }
3003
3004                # open patch output
3005                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3006                        or die_error(undef, "Open git-diff failed");
3007        } else  {
3008                die_error('404 Not Found', "Missing one of the blob diff parameters")
3009                        unless %diffinfo;
3010        }
3011
3012        # header
3013        if ($format eq 'html') {
3014                my $formats_nav =
3015                        $cgi->a({-href => href(action=>"blobdiff_plain",
3016                                               hash=>$hash, hash_parent=>$hash_parent,
3017                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3018                                               file_name=>$file_name, file_parent=>$file_parent)},
3019                                "plain");
3020                git_header_html(undef, $expires);
3021                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3022                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3023                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3024                } else {
3025                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3026                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3027                }
3028                if (defined $file_name) {
3029                        git_print_page_path($file_name, "blob", $hash_base);
3030                } else {
3031                        print "<div class=\"page_path\"></div>\n";
3032                }
3033
3034        } elsif ($format eq 'plain') {
3035                print $cgi->header(
3036                        -type => 'text/plain',
3037                        -charset => 'utf-8',
3038                        -expires => $expires,
3039                        -content_disposition => qq(inline; filename="${file_name}.patch"));
3040
3041                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3042
3043        } else {
3044                die_error(undef, "Unknown blobdiff format");
3045        }
3046
3047        # patch
3048        if ($format eq 'html') {
3049                print "<div class=\"page_body\">\n";
3050
3051                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3052                close $fd;
3053
3054                print "</div>\n"; # class="page_body"
3055                git_footer_html();
3056
3057        } else {
3058                while (my $line = <$fd>) {
3059                        $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3060                        $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3061
3062                        print $line;
3063
3064                        last if $line =~ m!^\+\+\+!;
3065                }
3066                local $/ = undef;
3067                print <$fd>;
3068                close $fd;
3069        }
3070}
3071
3072sub git_blobdiff_plain {
3073        git_blobdiff('plain');
3074}
3075
3076sub git_commitdiff {
3077        my $format = shift || 'html';
3078        my %co = parse_commit($hash);
3079        if (!%co) {
3080                die_error(undef, "Unknown commit object");
3081        }
3082        if (!defined $hash_parent) {
3083                $hash_parent = $co{'parent'} || '--root';
3084        }
3085
3086        # read commitdiff
3087        my $fd;
3088        my @difftree;
3089        if ($format eq 'html') {
3090                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3091                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3092                        or die_error(undef, "Open git-diff-tree failed");
3093
3094                while (chomp(my $line = <$fd>)) {
3095                        # empty line ends raw part of diff-tree output
3096                        last unless $line;
3097                        push @difftree, $line;
3098                }
3099
3100        } elsif ($format eq 'plain') {
3101                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3102                        '-p', $hash_parent, $hash
3103                        or die_error(undef, "Open git-diff-tree failed");
3104
3105        } else {
3106                die_error(undef, "Unknown commitdiff format");
3107        }
3108
3109        # non-textual hash id's can be cached
3110        my $expires;
3111        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3112                $expires = "+1d";
3113        }
3114
3115        # write commit message
3116        if ($format eq 'html') {
3117                my $refs = git_get_references();
3118                my $ref = format_ref_marker($refs, $co{'id'});
3119                my $formats_nav =
3120                        $cgi->a({-href => href(action=>"commitdiff_plain",
3121                                               hash=>$hash, hash_parent=>$hash_parent)},
3122                                "plain");
3123
3124                git_header_html(undef, $expires);
3125                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3126                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3127                git_print_authorship(\%co);
3128                print "<div class=\"page_body\">\n";
3129                print "<div class=\"log\">\n";
3130                git_print_simplified_log($co{'comment'}, 1); # skip title
3131                print "</div>\n"; # class="log"
3132
3133        } elsif ($format eq 'plain') {
3134                my $refs = git_get_references("tags");
3135                my $tagname = git_get_rev_name_tags($hash);
3136                my $filename = basename($project) . "-$hash.patch";
3137
3138                print $cgi->header(
3139                        -type => 'text/plain',
3140                        -charset => 'utf-8',
3141                        -expires => $expires,
3142                        -content_disposition => qq(inline; filename="$filename"));
3143                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3144                print <<TEXT;
3145From: $co{'author'}
3146Date: $ad{'rfc2822'} ($ad{'tz_local'})
3147Subject: $co{'title'}
3148TEXT
3149                print "X-Git-Tag: $tagname\n" if $tagname;
3150                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3151
3152                foreach my $line (@{$co{'comment'}}) {
3153                        print "$line\n";
3154                }
3155                print "---\n\n";
3156        }
3157
3158        # write patch
3159        if ($format eq 'html') {
3160                git_difftree_body(\@difftree, $hash, $hash_parent);
3161                print "<br/>\n";
3162
3163                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3164                close $fd;
3165                print "</div>\n"; # class="page_body"
3166                git_footer_html();
3167
3168        } elsif ($format eq 'plain') {
3169                local $/ = undef;
3170                print <$fd>;
3171                close $fd
3172                        or print "Reading git-diff-tree failed\n";
3173        }
3174}
3175
3176sub git_commitdiff_plain {
3177        git_commitdiff('plain');
3178}
3179
3180sub git_history {
3181        if (!defined $hash_base) {
3182                $hash_base = git_get_head_hash($project);
3183        }
3184        if (!defined $page) {
3185                $page = 0;
3186        }
3187        my $ftype;
3188        my %co = parse_commit($hash_base);
3189        if (!%co) {
3190                die_error(undef, "Unknown commit object");
3191        }
3192
3193        my $refs = git_get_references();
3194        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3195
3196        if (!defined $hash && defined $file_name) {
3197                $hash = git_get_hash_by_path($hash_base, $file_name);
3198        }
3199        if (defined $hash) {
3200                $ftype = git_get_type($hash);
3201        }
3202
3203        open my $fd, "-|",
3204                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3205                        or die_error(undef, "Open git-rev-list-failed");
3206        my @revlist = map { chomp; $_ } <$fd>;
3207        close $fd
3208                or die_error(undef, "Reading git-rev-list failed");
3209
3210        my $paging_nav = '';
3211        if ($page > 0) {
3212                $paging_nav .=
3213                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3214                                               file_name=>$file_name)},
3215                                "first");
3216                $paging_nav .= " &sdot; " .
3217                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3218                                               file_name=>$file_name, page=>$page-1),
3219                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3220        } else {
3221                $paging_nav .= "first";
3222                $paging_nav .= " &sdot; prev";
3223        }
3224        if ($#revlist >= (100 * ($page+1)-1)) {
3225                $paging_nav .= " &sdot; " .
3226                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3227                                               file_name=>$file_name, page=>$page+1),
3228                                 -accesskey => "n", -title => "Alt-n"}, "next");
3229        } else {
3230                $paging_nav .= " &sdot; next";
3231        }
3232        my $next_link = '';
3233        if ($#revlist >= (100 * ($page+1)-1)) {
3234                $next_link =
3235                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3236                                               file_name=>$file_name, page=>$page+1),
3237                                 -title => "Alt-n"}, "next");
3238        }
3239
3240        git_header_html();
3241        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3242        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3243        git_print_page_path($file_name, $ftype, $hash_base);
3244
3245        git_history_body(\@revlist, ($page * 100), $#revlist,
3246                         $refs, $hash_base, $ftype, $next_link);
3247
3248        git_footer_html();
3249}
3250
3251sub git_search {
3252        if (!defined $searchtext) {
3253                die_error(undef, "Text field empty");
3254        }
3255        if (!defined $hash) {
3256                $hash = git_get_head_hash($project);
3257        }
3258        my %co = parse_commit($hash);
3259        if (!%co) {
3260                die_error(undef, "Unknown commit object");
3261        }
3262
3263        my $commit_search = 1;
3264        my $author_search = 0;
3265        my $committer_search = 0;
3266        my $pickaxe_search = 0;
3267        if ($searchtext =~ s/^author\\://i) {
3268                $author_search = 1;
3269        } elsif ($searchtext =~ s/^committer\\://i) {
3270                $committer_search = 1;
3271        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3272                $commit_search = 0;
3273                $pickaxe_search = 1;
3274
3275                # pickaxe may take all resources of your box and run for several minutes
3276                # with every query - so decide by yourself how public you make this feature
3277                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3278                if (!$have_pickaxe) {
3279                        die_error('403 Permission denied', "Permission denied");
3280                }
3281        }
3282        git_header_html();
3283        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3284        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3285
3286        print "<table cellspacing=\"0\">\n";
3287        my $alternate = 0;
3288        if ($commit_search) {
3289                $/ = "\0";
3290                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3291                while (my $commit_text = <$fd>) {
3292                        if (!grep m/$searchtext/i, $commit_text) {
3293                                next;
3294                        }
3295                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3296                                next;
3297                        }
3298                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3299                                next;
3300                        }
3301                        my @commit_lines = split "\n", $commit_text;
3302                        my %co = parse_commit(undef, \@commit_lines);
3303                        if (!%co) {
3304                                next;
3305                        }
3306                        if ($alternate) {
3307                                print "<tr class=\"dark\">\n";
3308                        } else {
3309                                print "<tr class=\"light\">\n";
3310                        }
3311                        $alternate ^= 1;
3312                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3313                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3314                              "<td>" .
3315                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3316                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3317                        my $comment = $co{'comment'};
3318                        foreach my $line (@$comment) {
3319                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3320                                        my $lead = esc_html($1) || "";
3321                                        $lead = chop_str($lead, 30, 10);
3322                                        my $match = esc_html($2) || "";
3323                                        my $trail = esc_html($3) || "";
3324                                        $trail = chop_str($trail, 30, 10);
3325                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3326                                        print chop_str($text, 80, 5) . "<br/>\n";
3327                                }
3328                        }
3329                        print "</td>\n" .
3330                              "<td class=\"link\">" .
3331                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3332                              " | " .
3333                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3334                        print "</td>\n" .
3335                              "</tr>\n";
3336                }
3337                close $fd;
3338        }
3339
3340        if ($pickaxe_search) {
3341                $/ = "\n";
3342                my $git_command = git_cmd_str();
3343                open my $fd, "-|", "$git_command rev-list $hash | " .
3344                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3345                undef %co;
3346                my @files;
3347                while (my $line = <$fd>) {
3348                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3349                                my %set;
3350                                $set{'file'} = $6;
3351                                $set{'from_id'} = $3;
3352                                $set{'to_id'} = $4;
3353                                $set{'id'} = $set{'to_id'};
3354                                if ($set{'id'} =~ m/0{40}/) {
3355                                        $set{'id'} = $set{'from_id'};
3356                                }
3357                                if ($set{'id'} =~ m/0{40}/) {
3358                                        next;
3359                                }
3360                                push @files, \%set;
3361                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3362                                if (%co) {
3363                                        if ($alternate) {
3364                                                print "<tr class=\"dark\">\n";
3365                                        } else {
3366                                                print "<tr class=\"light\">\n";
3367                                        }
3368                                        $alternate ^= 1;
3369                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3370                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3371                                              "<td>" .
3372                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3373                                                      -class => "list subject"},
3374                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3375                                        while (my $setref = shift @files) {
3376                                                my %set = %$setref;
3377                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3378                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3379                                                              -class => "list"},
3380                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3381                                                      "<br/>\n";
3382                                        }
3383                                        print "</td>\n" .
3384                                              "<td class=\"link\">" .
3385                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3386                                              " | " .
3387                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3388                                        print "</td>\n" .
3389                                              "</tr>\n";
3390                                }
3391                                %co = parse_commit($1);
3392                        }
3393                }
3394                close $fd;
3395        }
3396        print "</table>\n";
3397        git_footer_html();
3398}
3399
3400sub git_shortlog {
3401        my $head = git_get_head_hash($project);
3402        if (!defined $hash) {
3403                $hash = $head;
3404        }
3405        if (!defined $page) {
3406                $page = 0;
3407        }
3408        my $refs = git_get_references();
3409
3410        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3411        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3412                or die_error(undef, "Open git-rev-list failed");
3413        my @revlist = map { chomp; $_ } <$fd>;
3414        close $fd;
3415
3416        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3417        my $next_link = '';
3418        if ($#revlist >= (100 * ($page+1)-1)) {
3419                $next_link =
3420                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3421                                 -title => "Alt-n"}, "next");
3422        }
3423
3424
3425        git_header_html();
3426        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3427        git_print_header_div('summary', $project);
3428
3429        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3430
3431        git_footer_html();
3432}
3433
3434## ......................................................................
3435## feeds (RSS, OPML)
3436
3437sub git_rss {
3438        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3439        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3440                or die_error(undef, "Open git-rev-list failed");
3441        my @revlist = map { chomp; $_ } <$fd>;
3442        close $fd or die_error(undef, "Reading git-rev-list failed");
3443        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3444        print <<XML;
3445<?xml version="1.0" encoding="utf-8"?>
3446<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3447<channel>
3448<title>$project $my_uri $my_url</title>
3449<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3450<description>$project log</description>
3451<language>en</language>
3452XML
3453
3454        for (my $i = 0; $i <= $#revlist; $i++) {
3455                my $commit = $revlist[$i];
3456                my %co = parse_commit($commit);
3457                # we read 150, we always show 30 and the ones more recent than 48 hours
3458                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3459                        last;
3460                }
3461                my %cd = parse_date($co{'committer_epoch'});
3462                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3463                        $co{'parent'}, $co{'id'}
3464                        or next;
3465                my @difftree = map { chomp; $_ } <$fd>;
3466                close $fd
3467                        or next;
3468                print "<item>\n" .
3469                      "<title>" .
3470                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3471                      "</title>\n" .
3472                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3473                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3474                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3475                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3476                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3477                      "<content:encoded>" .
3478                      "<![CDATA[\n";
3479                my $comment = $co{'comment'};
3480                foreach my $line (@$comment) {
3481                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3482                        print "$line<br/>\n";
3483                }
3484                print "<br/>\n";
3485                foreach my $line (@difftree) {
3486                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3487                                next;
3488                        }
3489                        my $file = validate_input(unquote($7));
3490                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3491                        print "$file<br/>\n";
3492                }
3493                print "]]>\n" .
3494                      "</content:encoded>\n" .
3495                      "</item>\n";
3496        }
3497        print "</channel></rss>";
3498}
3499
3500sub git_opml {
3501        my @list = git_get_projects_list();
3502
3503        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3504        print <<XML;
3505<?xml version="1.0" encoding="utf-8"?>
3506<opml version="1.0">
3507<head>
3508  <title>$site_name Git OPML Export</title>
3509</head>
3510<body>
3511<outline text="git RSS feeds">
3512XML
3513
3514        foreach my $pr (@list) {
3515                my %proj = %$pr;
3516                my $head = git_get_head_hash($proj{'path'});
3517                if (!defined $head) {
3518                        next;
3519                }
3520                $git_dir = "$projectroot/$proj{'path'}";
3521                my %co = parse_commit($head);
3522                if (!%co) {
3523                        next;
3524                }
3525
3526                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3527                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3528                my $html = "$my_url?p=$proj{'path'};a=summary";
3529                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3530        }
3531        print <<XML;
3532</outline>
3533</body>
3534</opml>
3535XML
3536}