Andrew's git - gitweb.git/blob - gitweb/gitweb.perl

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  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# show repository only if this file exists
  58# (only effective if this variable evaluates to true)
  59our $export_ok = "++GITWEB_EXPORT_OK++";
  60
  61# only allow viewing of repositories also shown on the overview page
  62our $strict_export = "++GITWEB_STRICT_EXPORT++";
  63
  64# list of git base URLs used for URL to where fetch project from,
  65# i.e. full URL is "$git_base_url/$project"
  66our @git_base_url_list = ("++GITWEB_BASE_URL++");
  67
  68# default blob_plain mimetype and default charset for text/plain blob
  69our $default_blob_plain_mimetype = 'text/plain';
  70our $default_text_plain_charset  = undef;
  71
  72# file to use for guessing MIME types before trying /etc/mime.types
  73# (relative to the current git repository)
  74our $mimetypes_file = undef;
  75
  76# You define site-wide feature defaults here; override them with
  77# $GITWEB_CONFIG as necessary.
  78our %feature = (
  79        # feature => {
  80        #       'sub' => feature-sub (subroutine),
  81        #       'override' => allow-override (boolean),
  82        #       'default' => [ default options...] (array reference)}
  83        #
  84        # if feature is overridable (it means that allow-override has true value,
  85        # then feature-sub will be called with default options as parameters;
  86        # return value of feature-sub indicates if to enable specified feature
  87        #
  88        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90        'blame' => {
  91                'sub' => \&feature_blame,
  92                'override' => 0,
  93                'default' => [0]},
  94
  95        'snapshot' => {
  96                'sub' => \&feature_snapshot,
  97                'override' => 0,
  98                #         => [content-encoding, suffix, program]
  99                'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101        'pickaxe' => {
 102                'sub' => \&feature_pickaxe,
 103                'override' => 0,
 104                'default' => [1]},
 105);
 106
 107sub gitweb_check_feature {
 108        my ($name) = @_;
 109        return unless exists $feature{$name};
 110        my ($sub, $override, @defaults) = (
 111                $feature{$name}{'sub'},
 112                $feature{$name}{'override'},
 113                @{$feature{$name}{'default'}});
 114        if (!$override) { return @defaults; }
 115        return $sub->(@defaults);
 116}
 117
 118# To enable system wide have in $GITWEB_CONFIG
 119# $feature{'blame'}{'default'} = [1];
 120# To have project specific config enable override in $GITWEB_CONFIG
 121# $feature{'blame'}{'override'} = 1;
 122# and in project config gitweb.blame = 0|1;
 123
 124sub feature_blame {
 125        my ($val) = git_get_project_config('blame', '--bool');
 126
 127        if ($val eq 'true') {
 128                return 1;
 129        } elsif ($val eq 'false') {
 130                return 0;
 131        }
 132
 133        return $_[0];
 134}
 135
 136# To disable system wide have in $GITWEB_CONFIG
 137# $feature{'snapshot'}{'default'} = [undef];
 138# To have project specific config enable override in $GITWEB_CONFIG
 139# $feature{'blame'}{'override'} = 1;
 140# and in project config  gitweb.snapshot = none|gzip|bzip2
 141
 142sub feature_snapshot {
 143        my ($ctype, $suffix, $command) = @_;
 144
 145        my ($val) = git_get_project_config('snapshot');
 146
 147        if ($val eq 'gzip') {
 148                return ('x-gzip', 'gz', 'gzip');
 149        } elsif ($val eq 'bzip2') {
 150                return ('x-bzip2', 'bz2', 'bzip2');
 151        } elsif ($val eq 'none') {
 152                return ();
 153        }
 154
 155        return ($ctype, $suffix, $command);
 156}
 157
 158sub gitweb_have_snapshot {
 159        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 160        my $have_snapshot = (defined $ctype && defined $suffix);
 161
 162        return $have_snapshot;
 163}
 164
 165# To enable system wide have in $GITWEB_CONFIG
 166# $feature{'pickaxe'}{'default'} = [1];
 167# To have project specific config enable override in $GITWEB_CONFIG
 168# $feature{'pickaxe'}{'override'} = 1;
 169# and in project config gitweb.pickaxe = 0|1;
 170
 171sub feature_pickaxe {
 172        my ($val) = git_get_project_config('pickaxe', '--bool');
 173
 174        if ($val eq 'true') {
 175                return (1);
 176        } elsif ($val eq 'false') {
 177                return (0);
 178        }
 179
 180        return ($_[0]);
 181}
 182
 183# rename detection options for git-diff and git-diff-tree
 184# - default is '-M', with the cost proportional to
 185#   (number of removed files) * (number of new files).
 186# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 187#   (number of changed files + number of removed files) * (number of new files)
 188# - even more costly is '-C', '--find-copies-harder' with cost
 189#   (number of files in the original tree) * (number of new files)
 190# - one might want to include '-B' option, e.g. '-B', '-M'
 191our @diff_opts = ('-M'); # taken from git_commit
 192
 193our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 194do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 195
 196# version of the core git binary
 197our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 198
 199$projects_list ||= $projectroot;
 200
 201# ======================================================================
 202# input validation and dispatch
 203our $action = $cgi->param('a');
 204if (defined $action) {
 205        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 206                die_error(undef, "Invalid action parameter");
 207        }
 208}
 209
 210# parameters which are pathnames
 211our $project = $cgi->param('p');
 212if (defined $project) {
 213        if (!validate_pathname($project) ||
 214            !(-d "$projectroot/$project") ||
 215            !(-e "$projectroot/$project/HEAD") ||
 216            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 217            ($strict_export && !project_in_list($project))) {
 218                undef $project;
 219                die_error(undef, "No such project");
 220        }
 221}
 222
 223our $file_name = $cgi->param('f');
 224if (defined $file_name) {
 225        if (!validate_pathname($file_name)) {
 226                die_error(undef, "Invalid file parameter");
 227        }
 228}
 229
 230our $file_parent = $cgi->param('fp');
 231if (defined $file_parent) {
 232        if (!validate_pathname($file_parent)) {
 233                die_error(undef, "Invalid file parent parameter");
 234        }
 235}
 236
 237# parameters which are refnames
 238our $hash = $cgi->param('h');
 239if (defined $hash) {
 240        if (!validate_refname($hash)) {
 241                die_error(undef, "Invalid hash parameter");
 242        }
 243}
 244
 245our $hash_parent = $cgi->param('hp');
 246if (defined $hash_parent) {
 247        if (!validate_refname($hash_parent)) {
 248                die_error(undef, "Invalid hash parent parameter");
 249        }
 250}
 251
 252our $hash_base = $cgi->param('hb');
 253if (defined $hash_base) {
 254        if (!validate_refname($hash_base)) {
 255                die_error(undef, "Invalid hash base parameter");
 256        }
 257}
 258
 259our $hash_parent_base = $cgi->param('hpb');
 260if (defined $hash_parent_base) {
 261        if (!validate_refname($hash_parent_base)) {
 262                die_error(undef, "Invalid hash parent base parameter");
 263        }
 264}
 265
 266# other parameters
 267our $page = $cgi->param('pg');
 268if (defined $page) {
 269        if ($page =~ m/[^0-9]/) {
 270                die_error(undef, "Invalid page parameter");
 271        }
 272}
 273
 274our $searchtext = $cgi->param('s');
 275if (defined $searchtext) {
 276        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 277                die_error(undef, "Invalid search parameter");
 278        }
 279        $searchtext = quotemeta $searchtext;
 280}
 281
 282# now read PATH_INFO and use it as alternative to parameters
 283sub evaluate_path_info {
 284        return if defined $project;
 285        my $path_info = $ENV{"PATH_INFO"};
 286        return if !$path_info;
 287        $path_info =~ s,^/+,,;
 288        return if !$path_info;
 289        # find which part of PATH_INFO is project
 290        $project = $path_info;
 291        $project =~ s,/+$,,;
 292        while ($project && !-e "$projectroot/$project/HEAD") {
 293                $project =~ s,/*[^/]*$,,;
 294        }
 295        # validate project
 296        $project = validate_pathname($project);
 297        if (!$project ||
 298            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 299            ($strict_export && !project_in_list($project))) {
 300                undef $project;
 301                return;
 302        }
 303        # do not change any parameters if an action is given using the query string
 304        return if $action;
 305        $path_info =~ s,^$project/*,,;
 306        my ($refname, $pathname) = split(/:/, $path_info, 2);
 307        if (defined $pathname) {
 308                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 309                # we could use git_get_type(branch:pathname), but it needs $git_dir
 310                $pathname =~ s,^/+,,;
 311                if (!$pathname || substr($pathname, -1) eq "/") {
 312                        $action  ||= "tree";
 313                        $pathname =~ s,/$,,;
 314                } else {
 315                        $action  ||= "blob_plain";
 316                }
 317                $hash_base ||= validate_refname($refname);
 318                $file_name ||= validate_pathname($pathname);
 319        } elsif (defined $refname) {
 320                # we got "project.git/branch"
 321                $action ||= "shortlog";
 322                $hash   ||= validate_refname($refname);
 323        }
 324}
 325evaluate_path_info();
 326
 327# path to the current git repository
 328our $git_dir;
 329$git_dir = "$projectroot/$project" if $project;
 330
 331# dispatch
 332my %actions = (
 333        "blame" => \&git_blame2,
 334        "blobdiff" => \&git_blobdiff,
 335        "blobdiff_plain" => \&git_blobdiff_plain,
 336        "blob" => \&git_blob,
 337        "blob_plain" => \&git_blob_plain,
 338        "commitdiff" => \&git_commitdiff,
 339        "commitdiff_plain" => \&git_commitdiff_plain,
 340        "commit" => \&git_commit,
 341        "heads" => \&git_heads,
 342        "history" => \&git_history,
 343        "log" => \&git_log,
 344        "rss" => \&git_rss,
 345        "search" => \&git_search,
 346        "shortlog" => \&git_shortlog,
 347        "summary" => \&git_summary,
 348        "tag" => \&git_tag,
 349        "tags" => \&git_tags,
 350        "tree" => \&git_tree,
 351        "snapshot" => \&git_snapshot,
 352        # those below don't need $project
 353        "opml" => \&git_opml,
 354        "project_list" => \&git_project_list,
 355        "project_index" => \&git_project_index,
 356);
 357
 358if (defined $project) {
 359        $action ||= 'summary';
 360} else {
 361        $action ||= 'project_list';
 362}
 363if (!defined($actions{$action})) {
 364        die_error(undef, "Unknown action");
 365}
 366if ($action !~ m/^(opml|project_list|project_index)$/ &&
 367    !$project) {
 368        die_error(undef, "Project needed");
 369}
 370$actions{$action}->();
 371exit;
 372
 373## ======================================================================
 374## action links
 375
 376sub href(%) {
 377        my %params = @_;
 378
 379        my @mapping = (
 380                project => "p",
 381                action => "a",
 382                file_name => "f",
 383                file_parent => "fp",
 384                hash => "h",
 385                hash_parent => "hp",
 386                hash_base => "hb",
 387                hash_parent_base => "hpb",
 388                page => "pg",
 389                order => "o",
 390                searchtext => "s",
 391        );
 392        my %mapping = @mapping;
 393
 394        $params{'project'} = $project unless exists $params{'project'};
 395
 396        my @result = ();
 397        for (my $i = 0; $i < @mapping; $i += 2) {
 398                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 399                if (defined $params{$name}) {
 400                        push @result, $symbol . "=" . esc_param($params{$name});
 401                }
 402        }
 403        return "$my_uri?" . join(';', @result);
 404}
 405
 406
 407## ======================================================================
 408## validation, quoting/unquoting and escaping
 409
 410sub validate_pathname {
 411        my $input = shift || return undef;
 412
 413        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 414        # at the beginning, at the end, and between slashes.
 415        # also this catches doubled slashes
 416        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 417                return undef;
 418        }
 419        # no null characters
 420        if ($input =~ m!\0!) {
 421                return undef;
 422        }
 423        return $input;
 424}
 425
 426sub validate_refname {
 427        my $input = shift || return undef;
 428
 429        # textual hashes are O.K.
 430        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 431                return $input;
 432        }
 433        # it must be correct pathname
 434        $input = validate_pathname($input)
 435                or return undef;
 436        # restrictions on ref name according to git-check-ref-format
 437        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 438                return undef;
 439        }
 440        return $input;
 441}
 442
 443# quote unsafe chars, but keep the slash, even when it's not
 444# correct, but quoted slashes look too horrible in bookmarks
 445sub esc_param {
 446        my $str = shift;
 447        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 448        $str =~ s/\+/%2B/g;
 449        $str =~ s/ /\+/g;
 450        return $str;
 451}
 452
 453# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 454sub esc_url {
 455        my $str = shift;
 456        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 457        $str =~ s/\+/%2B/g;
 458        $str =~ s/ /\+/g;
 459        return $str;
 460}
 461
 462# replace invalid utf8 character with SUBSTITUTION sequence
 463sub esc_html {
 464        my $str = shift;
 465        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 466        $str = escapeHTML($str);
 467        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 468        return $str;
 469}
 470
 471# git may return quoted and escaped filenames
 472sub unquote {
 473        my $str = shift;
 474        if ($str =~ m/^"(.*)"$/) {
 475                $str = $1;
 476                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 477        }
 478        return $str;
 479}
 480
 481# escape tabs (convert tabs to spaces)
 482sub untabify {
 483        my $line = shift;
 484
 485        while ((my $pos = index($line, "\t")) != -1) {
 486                if (my $count = (8 - ($pos % 8))) {
 487                        my $spaces = ' ' x $count;
 488                        $line =~ s/\t/$spaces/;
 489                }
 490        }
 491
 492        return $line;
 493}
 494
 495sub project_in_list {
 496        my $project = shift;
 497        my @list = git_get_projects_list();
 498        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 499}
 500
 501## ----------------------------------------------------------------------
 502## HTML aware string manipulation
 503
 504sub chop_str {
 505        my $str = shift;
 506        my $len = shift;
 507        my $add_len = shift || 10;
 508
 509        # allow only $len chars, but don't cut a word if it would fit in $add_len
 510        # if it doesn't fit, cut it if it's still longer than the dots we would add
 511        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 512        my $body = $1;
 513        my $tail = $2;
 514        if (length($tail) > 4) {
 515                $tail = " ...";
 516                $body =~ s/&[^;]*$//; # remove chopped character entities
 517        }
 518        return "$body$tail";
 519}
 520
 521## ----------------------------------------------------------------------
 522## functions returning short strings
 523
 524# CSS class for given age value (in seconds)
 525sub age_class {
 526        my $age = shift;
 527
 528        if ($age < 60*60*2) {
 529                return "age0";
 530        } elsif ($age < 60*60*24*2) {
 531                return "age1";
 532        } else {
 533                return "age2";
 534        }
 535}
 536
 537# convert age in seconds to "nn units ago" string
 538sub age_string {
 539        my $age = shift;
 540        my $age_str;
 541
 542        if ($age > 60*60*24*365*2) {
 543                $age_str = (int $age/60/60/24/365);
 544                $age_str .= " years ago";
 545        } elsif ($age > 60*60*24*(365/12)*2) {
 546                $age_str = int $age/60/60/24/(365/12);
 547                $age_str .= " months ago";
 548        } elsif ($age > 60*60*24*7*2) {
 549                $age_str = int $age/60/60/24/7;
 550                $age_str .= " weeks ago";
 551        } elsif ($age > 60*60*24*2) {
 552                $age_str = int $age/60/60/24;
 553                $age_str .= " days ago";
 554        } elsif ($age > 60*60*2) {
 555                $age_str = int $age/60/60;
 556                $age_str .= " hours ago";
 557        } elsif ($age > 60*2) {
 558                $age_str = int $age/60;
 559                $age_str .= " min ago";
 560        } elsif ($age > 2) {
 561                $age_str = int $age;
 562                $age_str .= " sec ago";
 563        } else {
 564                $age_str .= " right now";
 565        }
 566        return $age_str;
 567}
 568
 569# convert file mode in octal to symbolic file mode string
 570sub mode_str {
 571        my $mode = oct shift;
 572
 573        if (S_ISDIR($mode & S_IFMT)) {
 574                return 'drwxr-xr-x';
 575        } elsif (S_ISLNK($mode)) {
 576                return 'lrwxrwxrwx';
 577        } elsif (S_ISREG($mode)) {
 578                # git cares only about the executable bit
 579                if ($mode & S_IXUSR) {
 580                        return '-rwxr-xr-x';
 581                } else {
 582                        return '-rw-r--r--';
 583                };
 584        } else {
 585                return '----------';
 586        }
 587}
 588
 589# convert file mode in octal to file type string
 590sub file_type {
 591        my $mode = shift;
 592
 593        if ($mode !~ m/^[0-7]+$/) {
 594                return $mode;
 595        } else {
 596                $mode = oct $mode;
 597        }
 598
 599        if (S_ISDIR($mode & S_IFMT)) {
 600                return "directory";
 601        } elsif (S_ISLNK($mode)) {
 602                return "symlink";
 603        } elsif (S_ISREG($mode)) {
 604                return "file";
 605        } else {
 606                return "unknown";
 607        }
 608}
 609
 610## ----------------------------------------------------------------------
 611## functions returning short HTML fragments, or transforming HTML fragments
 612## which don't beling to other sections
 613
 614# format line of commit message or tag comment
 615sub format_log_line_html {
 616        my $line = shift;
 617
 618        $line = esc_html($line);
 619        $line =~ s/ /&nbsp;/g;
 620        if ($line =~ m/([0-9a-fA-F]{40})/) {
 621                my $hash_text = $1;
 622                if (git_get_type($hash_text) eq "commit") {
 623                        my $link =
 624                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 625                                        -class => "text"}, $hash_text);
 626                        $line =~ s/$hash_text/$link/;
 627                }
 628        }
 629        return $line;
 630}
 631
 632# format marker of refs pointing to given object
 633sub format_ref_marker {
 634        my ($refs, $id) = @_;
 635        my $markers = '';
 636
 637        if (defined $refs->{$id}) {
 638                foreach my $ref (@{$refs->{$id}}) {
 639                        my ($type, $name) = qw();
 640                        # e.g. tags/v2.6.11 or heads/next
 641                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 642                                $type = $1;
 643                                $name = $2;
 644                        } else {
 645                                $type = "ref";
 646                                $name = $ref;
 647                        }
 648
 649                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 650                }
 651        }
 652
 653        if ($markers) {
 654                return ' <span class="refs">'. $markers . '</span>';
 655        } else {
 656                return "";
 657        }
 658}
 659
 660# format, perhaps shortened and with markers, title line
 661sub format_subject_html {
 662        my ($long, $short, $href, $extra) = @_;
 663        $extra = '' unless defined($extra);
 664
 665        if (length($short) < length($long)) {
 666                return $cgi->a({-href => $href, -class => "list subject",
 667                                -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 668                       esc_html($short) . $extra);
 669        } else {
 670                return $cgi->a({-href => $href, -class => "list subject"},
 671                       esc_html($long)  . $extra);
 672        }
 673}
 674
 675sub format_diff_line {
 676        my $line = shift;
 677        my $char = substr($line, 0, 1);
 678        my $diff_class = "";
 679
 680        chomp $line;
 681
 682        if ($char eq '+') {
 683                $diff_class = " add";
 684        } elsif ($char eq "-") {
 685                $diff_class = " rem";
 686        } elsif ($char eq "@") {
 687                $diff_class = " chunk_header";
 688        } elsif ($char eq "\\") {
 689                $diff_class = " incomplete";
 690        }
 691        $line = untabify($line);
 692        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 693}
 694
 695## ----------------------------------------------------------------------
 696## git utility subroutines, invoking git commands
 697
 698# returns path to the core git executable and the --git-dir parameter as list
 699sub git_cmd {
 700        return $GIT, '--git-dir='.$git_dir;
 701}
 702
 703# returns path to the core git executable and the --git-dir parameter as string
 704sub git_cmd_str {
 705        return join(' ', git_cmd());
 706}
 707
 708# get HEAD ref of given project as hash
 709sub git_get_head_hash {
 710        my $project = shift;
 711        my $o_git_dir = $git_dir;
 712        my $retval = undef;
 713        $git_dir = "$projectroot/$project";
 714        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 715                my $head = <$fd>;
 716                close $fd;
 717                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 718                        $retval = $1;
 719                }
 720        }
 721        if (defined $o_git_dir) {
 722                $git_dir = $o_git_dir;
 723        }
 724        return $retval;
 725}
 726
 727# get type of given object
 728sub git_get_type {
 729        my $hash = shift;
 730
 731        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 732        my $type = <$fd>;
 733        close $fd or return;
 734        chomp $type;
 735        return $type;
 736}
 737
 738sub git_get_project_config {
 739        my ($key, $type) = @_;
 740
 741        return unless ($key);
 742        $key =~ s/^gitweb\.//;
 743        return if ($key =~ m/\W/);
 744
 745        my @x = (git_cmd(), 'repo-config');
 746        if (defined $type) { push @x, $type; }
 747        push @x, "--get";
 748        push @x, "gitweb.$key";
 749        my $val = qx(@x);
 750        chomp $val;
 751        return ($val);
 752}
 753
 754# get hash of given path at given ref
 755sub git_get_hash_by_path {
 756        my $base = shift;
 757        my $path = shift || return undef;
 758        my $type = shift;
 759
 760        $path =~ s,/+$,,;
 761
 762        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 763                or die_error(undef, "Open git-ls-tree failed");
 764        my $line = <$fd>;
 765        close $fd or return undef;
 766
 767        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 768        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 769        if (defined $type && $type ne $2) {
 770                # type doesn't match
 771                return undef;
 772        }
 773        return $3;
 774}
 775
 776## ......................................................................
 777## git utility functions, directly accessing git repository
 778
 779sub git_get_project_description {
 780        my $path = shift;
 781
 782        open my $fd, "$projectroot/$path/description" or return undef;
 783        my $descr = <$fd>;
 784        close $fd;
 785        chomp $descr;
 786        return $descr;
 787}
 788
 789sub git_get_project_url_list {
 790        my $path = shift;
 791
 792        open my $fd, "$projectroot/$path/cloneurl" or return;
 793        my @git_project_url_list = map { chomp; $_ } <$fd>;
 794        close $fd;
 795
 796        return wantarray ? @git_project_url_list : \@git_project_url_list;
 797}
 798
 799sub git_get_projects_list {
 800        my @list;
 801
 802        if (-d $projects_list) {
 803                # search in directory
 804                my $dir = $projects_list;
 805                my $pfxlen = length("$dir");
 806
 807                File::Find::find({
 808                        follow_fast => 1, # follow symbolic links
 809                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 810                        wanted => sub {
 811                                # skip project-list toplevel, if we get it.
 812                                return if (m!^[/.]$!);
 813                                # only directories can be git repositories
 814                                return unless (-d $_);
 815
 816                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 817                                # we check related file in $projectroot
 818                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 819                                    -e "$projectroot/$subdir/$export_ok")) {
 820                                        push @list, { path => $subdir };
 821                                        $File::Find::prune = 1;
 822                                }
 823                        },
 824                }, "$dir");
 825
 826        } elsif (-f $projects_list) {
 827                # read from file(url-encoded):
 828                # 'git%2Fgit.git Linus+Torvalds'
 829                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 830                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 831                open my ($fd), $projects_list or return;
 832                while (my $line = <$fd>) {
 833                        chomp $line;
 834                        my ($path, $owner) = split ' ', $line;
 835                        $path = unescape($path);
 836                        $owner = unescape($owner);
 837                        if (!defined $path) {
 838                                next;
 839                        }
 840                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 841                            -e "$projectroot/$path/$export_ok")) {
 842                                my $pr = {
 843                                        path => $path,
 844                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 845                                };
 846                                push @list, $pr
 847                        }
 848                }
 849                close $fd;
 850        }
 851        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 852        return @list;
 853}
 854
 855sub git_get_project_owner {
 856        my $project = shift;
 857        my $owner;
 858
 859        return undef unless $project;
 860
 861        # read from file (url-encoded):
 862        # 'git%2Fgit.git Linus+Torvalds'
 863        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 864        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 865        if (-f $projects_list) {
 866                open (my $fd , $projects_list);
 867                while (my $line = <$fd>) {
 868                        chomp $line;
 869                        my ($pr, $ow) = split ' ', $line;
 870                        $pr = unescape($pr);
 871                        $ow = unescape($ow);
 872                        if ($pr eq $project) {
 873                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 874                                last;
 875                        }
 876                }
 877                close $fd;
 878        }
 879        if (!defined $owner) {
 880                $owner = get_file_owner("$projectroot/$project");
 881        }
 882
 883        return $owner;
 884}
 885
 886sub git_get_references {
 887        my $type = shift || "";
 888        my %refs;
 889        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 890        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 891        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 892                or return;
 893
 894        while (my $line = <$fd>) {
 895                chomp $line;
 896                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 897                        if (defined $refs{$1}) {
 898                                push @{$refs{$1}}, $2;
 899                        } else {
 900                                $refs{$1} = [ $2 ];
 901                        }
 902                }
 903        }
 904        close $fd or return;
 905        return \%refs;
 906}
 907
 908sub git_get_rev_name_tags {
 909        my $hash = shift || return undef;
 910
 911        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 912                or return;
 913        my $name_rev = <$fd>;
 914        close $fd;
 915
 916        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 917                return $1;
 918        } else {
 919                # catches also '$hash undefined' output
 920                return undef;
 921        }
 922}
 923
 924## ----------------------------------------------------------------------
 925## parse to hash functions
 926
 927sub parse_date {
 928        my $epoch = shift;
 929        my $tz = shift || "-0000";
 930
 931        my %date;
 932        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 933        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 934        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 935        $date{'hour'} = $hour;
 936        $date{'minute'} = $min;
 937        $date{'mday'} = $mday;
 938        $date{'day'} = $days[$wday];
 939        $date{'month'} = $months[$mon];
 940        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 941                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 942        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 943                             $mday, $months[$mon], $hour ,$min;
 944
 945        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 946        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 947        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 948        $date{'hour_local'} = $hour;
 949        $date{'minute_local'} = $min;
 950        $date{'tz_local'} = $tz;
 951        return %date;
 952}
 953
 954sub parse_tag {
 955        my $tag_id = shift;
 956        my %tag;
 957        my @comment;
 958
 959        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 960        $tag{'id'} = $tag_id;
 961        while (my $line = <$fd>) {
 962                chomp $line;
 963                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 964                        $tag{'object'} = $1;
 965                } elsif ($line =~ m/^type (.+)$/) {
 966                        $tag{'type'} = $1;
 967                } elsif ($line =~ m/^tag (.+)$/) {
 968                        $tag{'name'} = $1;
 969                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 970                        $tag{'author'} = $1;
 971                        $tag{'epoch'} = $2;
 972                        $tag{'tz'} = $3;
 973                } elsif ($line =~ m/--BEGIN/) {
 974                        push @comment, $line;
 975                        last;
 976                } elsif ($line eq "") {
 977                        last;
 978                }
 979        }
 980        push @comment, <$fd>;
 981        $tag{'comment'} = \@comment;
 982        close $fd or return;
 983        if (!defined $tag{'name'}) {
 984                return
 985        };
 986        return %tag
 987}
 988
 989sub parse_commit {
 990        my $commit_id = shift;
 991        my $commit_text = shift;
 992
 993        my @commit_lines;
 994        my %co;
 995
 996        if (defined $commit_text) {
 997                @commit_lines = @$commit_text;
 998        } else {
 999                $/ = "\0";
1000                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1001                        or return;
1002                @commit_lines = split '\n', <$fd>;
1003                close $fd or return;
1004                $/ = "\n";
1005                pop @commit_lines;
1006        }
1007        my $header = shift @commit_lines;
1008        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1009                return;
1010        }
1011        ($co{'id'}, my @parents) = split ' ', $header;
1012        $co{'parents'} = \@parents;
1013        $co{'parent'} = $parents[0];
1014        while (my $line = shift @commit_lines) {
1015                last if $line eq "\n";
1016                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1017                        $co{'tree'} = $1;
1018                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1019                        $co{'author'} = $1;
1020                        $co{'author_epoch'} = $2;
1021                        $co{'author_tz'} = $3;
1022                        if ($co{'author'} =~ m/^([^<]+) </) {
1023                                $co{'author_name'} = $1;
1024                        } else {
1025                                $co{'author_name'} = $co{'author'};
1026                        }
1027                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1028                        $co{'committer'} = $1;
1029                        $co{'committer_epoch'} = $2;
1030                        $co{'committer_tz'} = $3;
1031                        $co{'committer_name'} = $co{'committer'};
1032                        $co{'committer_name'} =~ s/ <.*//;
1033                }
1034        }
1035        if (!defined $co{'tree'}) {
1036                return;
1037        };
1038
1039        foreach my $title (@commit_lines) {
1040                $title =~ s/^    //;
1041                if ($title ne "") {
1042                        $co{'title'} = chop_str($title, 80, 5);
1043                        # remove leading stuff of merges to make the interesting part visible
1044                        if (length($title) > 50) {
1045                                $title =~ s/^Automatic //;
1046                                $title =~ s/^merge (of|with) /Merge ... /i;
1047                                if (length($title) > 50) {
1048                                        $title =~ s/(http|rsync):\/\///;
1049                                }
1050                                if (length($title) > 50) {
1051                                        $title =~ s/(master|www|rsync)\.//;
1052                                }
1053                                if (length($title) > 50) {
1054                                        $title =~ s/kernel.org:?//;
1055                                }
1056                                if (length($title) > 50) {
1057                                        $title =~ s/\/pub\/scm//;
1058                                }
1059                        }
1060                        $co{'title_short'} = chop_str($title, 50, 5);
1061                        last;
1062                }
1063        }
1064        # remove added spaces
1065        foreach my $line (@commit_lines) {
1066                $line =~ s/^    //;
1067        }
1068        $co{'comment'} = \@commit_lines;
1069
1070        my $age = time - $co{'committer_epoch'};
1071        $co{'age'} = $age;
1072        $co{'age_string'} = age_string($age);
1073        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1074        if ($age > 60*60*24*7*2) {
1075                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1076                $co{'age_string_age'} = $co{'age_string'};
1077        } else {
1078                $co{'age_string_date'} = $co{'age_string'};
1079                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1080        }
1081        return %co;
1082}
1083
1084# parse ref from ref_file, given by ref_id, with given type
1085sub parse_ref {
1086        my $ref_file = shift;
1087        my $ref_id = shift;
1088        my $type = shift || git_get_type($ref_id);
1089        my %ref_item;
1090
1091        $ref_item{'type'} = $type;
1092        $ref_item{'id'} = $ref_id;
1093        $ref_item{'epoch'} = 0;
1094        $ref_item{'age'} = "unknown";
1095        if ($type eq "tag") {
1096                my %tag = parse_tag($ref_id);
1097                $ref_item{'comment'} = $tag{'comment'};
1098                if ($tag{'type'} eq "commit") {
1099                        my %co = parse_commit($tag{'object'});
1100                        $ref_item{'epoch'} = $co{'committer_epoch'};
1101                        $ref_item{'age'} = $co{'age_string'};
1102                } elsif (defined($tag{'epoch'})) {
1103                        my $age = time - $tag{'epoch'};
1104                        $ref_item{'epoch'} = $tag{'epoch'};
1105                        $ref_item{'age'} = age_string($age);
1106                }
1107                $ref_item{'reftype'} = $tag{'type'};
1108                $ref_item{'name'} = $tag{'name'};
1109                $ref_item{'refid'} = $tag{'object'};
1110        } elsif ($type eq "commit"){
1111                my %co = parse_commit($ref_id);
1112                $ref_item{'reftype'} = "commit";
1113                $ref_item{'name'} = $ref_file;
1114                $ref_item{'title'} = $co{'title'};
1115                $ref_item{'refid'} = $ref_id;
1116                $ref_item{'epoch'} = $co{'committer_epoch'};
1117                $ref_item{'age'} = $co{'age_string'};
1118        } else {
1119                $ref_item{'reftype'} = $type;
1120                $ref_item{'name'} = $ref_file;
1121                $ref_item{'refid'} = $ref_id;
1122        }
1123
1124        return %ref_item;
1125}
1126
1127# parse line of git-diff-tree "raw" output
1128sub parse_difftree_raw_line {
1129        my $line = shift;
1130        my %res;
1131
1132        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1133        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1134        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1135                $res{'from_mode'} = $1;
1136                $res{'to_mode'} = $2;
1137                $res{'from_id'} = $3;
1138                $res{'to_id'} = $4;
1139                $res{'status'} = $5;
1140                $res{'similarity'} = $6;
1141                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1142                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1143                } else {
1144                        $res{'file'} = unquote($7);
1145                }
1146        }
1147        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1148        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1149                $res{'commit'} = $1;
1150        }
1151
1152        return wantarray ? %res : \%res;
1153}
1154
1155# parse line of git-ls-tree output
1156sub parse_ls_tree_line ($;%) {
1157        my $line = shift;
1158        my %opts = @_;
1159        my %res;
1160
1161        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1162        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1163
1164        $res{'mode'} = $1;
1165        $res{'type'} = $2;
1166        $res{'hash'} = $3;
1167        if ($opts{'-z'}) {
1168                $res{'name'} = $4;
1169        } else {
1170                $res{'name'} = unquote($4);
1171        }
1172
1173        return wantarray ? %res : \%res;
1174}
1175
1176## ......................................................................
1177## parse to array of hashes functions
1178
1179sub git_get_refs_list {
1180        my $type = shift || "";
1181        my %refs;
1182        my @reflist;
1183
1184        my @refs;
1185        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1186                or return;
1187        while (my $line = <$fd>) {
1188                chomp $line;
1189                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1190                        if (defined $refs{$1}) {
1191                                push @{$refs{$1}}, $2;
1192                        } else {
1193                                $refs{$1} = [ $2 ];
1194                        }
1195
1196                        if (! $4) { # unpeeled, direct reference
1197                                push @refs, { hash => $1, name => $3 }; # without type
1198                        } elsif ($3 eq $refs[-1]{'name'}) {
1199                                # most likely a tag is followed by its peeled
1200                                # (deref) one, and when that happens we know the
1201                                # previous one was of type 'tag'.
1202                                $refs[-1]{'type'} = "tag";
1203                        }
1204                }
1205        }
1206        close $fd;
1207
1208        foreach my $ref (@refs) {
1209                my $ref_file = $ref->{'name'};
1210                my $ref_id   = $ref->{'hash'};
1211
1212                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1213                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1214
1215                push @reflist, \%ref_item;
1216        }
1217        # sort refs by age
1218        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1219        return (\@reflist, \%refs);
1220}
1221
1222## ----------------------------------------------------------------------
1223## filesystem-related functions
1224
1225sub get_file_owner {
1226        my $path = shift;
1227
1228        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1229        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1230        if (!defined $gcos) {
1231                return undef;
1232        }
1233        my $owner = $gcos;
1234        $owner =~ s/[,;].*$//;
1235        return decode("utf8", $owner, Encode::FB_DEFAULT);
1236}
1237
1238## ......................................................................
1239## mimetype related functions
1240
1241sub mimetype_guess_file {
1242        my $filename = shift;
1243        my $mimemap = shift;
1244        -r $mimemap or return undef;
1245
1246        my %mimemap;
1247        open(MIME, $mimemap) or return undef;
1248        while (<MIME>) {
1249                next if m/^#/; # skip comments
1250                my ($mime, $exts) = split(/\t+/);
1251                if (defined $exts) {
1252                        my @exts = split(/\s+/, $exts);
1253                        foreach my $ext (@exts) {
1254                                $mimemap{$ext} = $mime;
1255                        }
1256                }
1257        }
1258        close(MIME);
1259
1260        $filename =~ /\.([^.]*)$/;
1261        return $mimemap{$1};
1262}
1263
1264sub mimetype_guess {
1265        my $filename = shift;
1266        my $mime;
1267        $filename =~ /\./ or return undef;
1268
1269        if ($mimetypes_file) {
1270                my $file = $mimetypes_file;
1271                if ($file !~ m!^/!) { # if it is relative path
1272                        # it is relative to project
1273                        $file = "$projectroot/$project/$file";
1274                }
1275                $mime = mimetype_guess_file($filename, $file);
1276        }
1277        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1278        return $mime;
1279}
1280
1281sub blob_mimetype {
1282        my $fd = shift;
1283        my $filename = shift;
1284
1285        if ($filename) {
1286                my $mime = mimetype_guess($filename);
1287                $mime and return $mime;
1288        }
1289
1290        # just in case
1291        return $default_blob_plain_mimetype unless $fd;
1292
1293        if (-T $fd) {
1294                return 'text/plain' .
1295                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1296        } elsif (! $filename) {
1297                return 'application/octet-stream';
1298        } elsif ($filename =~ m/\.png$/i) {
1299                return 'image/png';
1300        } elsif ($filename =~ m/\.gif$/i) {
1301                return 'image/gif';
1302        } elsif ($filename =~ m/\.jpe?g$/i) {
1303                return 'image/jpeg';
1304        } else {
1305                return 'application/octet-stream';
1306        }
1307}
1308
1309## ======================================================================
1310## functions printing HTML: header, footer, error page
1311
1312sub git_header_html {
1313        my $status = shift || "200 OK";
1314        my $expires = shift;
1315
1316        my $title = "$site_name git";
1317        if (defined $project) {
1318                $title .= " - $project";
1319                if (defined $action) {
1320                        $title .= "/$action";
1321                        if (defined $file_name) {
1322                                $title .= " - " . esc_html($file_name);
1323                                if ($action eq "tree" && $file_name !~ m|/$|) {
1324                                        $title .= "/";
1325                                }
1326                        }
1327                }
1328        }
1329        my $content_type;
1330        # require explicit support from the UA if we are to send the page as
1331        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1332        # we have to do this because MSIE sometimes globs '*/*', pretending to
1333        # support xhtml+xml but choking when it gets what it asked for.
1334        if (defined $cgi->http('HTTP_ACCEPT') &&
1335            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1336            $cgi->Accept('application/xhtml+xml') != 0) {
1337                $content_type = 'application/xhtml+xml';
1338        } else {
1339                $content_type = 'text/html';
1340        }
1341        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1342                           -status=> $status, -expires => $expires);
1343        print <<EOF;
1344<?xml version="1.0" encoding="utf-8"?>
1345<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1346<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1347<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1348<!-- git core binaries version $git_version -->
1349<head>
1350<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1351<meta name="generator" content="gitweb/$version git/$git_version"/>
1352<meta name="robots" content="index, nofollow"/>
1353<title>$title</title>
1354<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1355EOF
1356        if (defined $project) {
1357                printf('<link rel="alternate" title="%s log" '.
1358                       'href="%s" type="application/rss+xml"/>'."\n",
1359                       esc_param($project), href(action=>"rss"));
1360        } else {
1361                printf('<link rel="alternate" title="%s projects list" '.
1362                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1363                       $site_name, href(project=>undef, action=>"project_index"));
1364                printf('<link rel="alternate" title="%s projects logs" '.
1365                       'href="%s" type="text/x-opml"/>'."\n",
1366                       $site_name, href(project=>undef, action=>"opml"));
1367        }
1368        if (defined $favicon) {
1369                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1370        }
1371
1372        print "</head>\n" .
1373              "<body>\n" .
1374              "<div class=\"page_header\">\n" .
1375              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1376              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1377              "</a>\n";
1378        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1379        if (defined $project) {
1380                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1381                if (defined $action) {
1382                        print " / $action";
1383                }
1384                print "\n";
1385                if (!defined $searchtext) {
1386                        $searchtext = "";
1387                }
1388                my $search_hash;
1389                if (defined $hash_base) {
1390                        $search_hash = $hash_base;
1391                } elsif (defined $hash) {
1392                        $search_hash = $hash;
1393                } else {
1394                        $search_hash = "HEAD";
1395                }
1396                $cgi->param("a", "search");
1397                $cgi->param("h", $search_hash);
1398                print $cgi->startform(-method => "get", -action => $my_uri) .
1399                      "<div class=\"search\">\n" .
1400                      $cgi->hidden(-name => "p") . "\n" .
1401                      $cgi->hidden(-name => "a") . "\n" .
1402                      $cgi->hidden(-name => "h") . "\n" .
1403                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1404                      "</div>" .
1405                      $cgi->end_form() . "\n";
1406        }
1407        print "</div>\n";
1408}
1409
1410sub git_footer_html {
1411        print "<div class=\"page_footer\">\n";
1412        if (defined $project) {
1413                my $descr = git_get_project_description($project);
1414                if (defined $descr) {
1415                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1416                }
1417                print $cgi->a({-href => href(action=>"rss"),
1418                              -class => "rss_logo"}, "RSS") . "\n";
1419        } else {
1420                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1421                              -class => "rss_logo"}, "OPML") . " ";
1422                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1423                              -class => "rss_logo"}, "TXT") . "\n";
1424        }
1425        print "</div>\n" .
1426              "</body>\n" .
1427              "</html>";
1428}
1429
1430sub die_error {
1431        my $status = shift || "403 Forbidden";
1432        my $error = shift || "Malformed query, file missing or permission denied";
1433
1434        git_header_html($status);
1435        print <<EOF;
1436<div class="page_body">
1437<br /><br />
1438$status - $error
1439<br />
1440</div>
1441EOF
1442        git_footer_html();
1443        exit;
1444}
1445
1446## ----------------------------------------------------------------------
1447## functions printing or outputting HTML: navigation
1448
1449sub git_print_page_nav {
1450        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1451        $extra = '' if !defined $extra; # pager or formats
1452
1453        my @navs = qw(summary shortlog log commit commitdiff tree);
1454        if ($suppress) {
1455                @navs = grep { $_ ne $suppress } @navs;
1456        }
1457
1458        my %arg = map { $_ => {action=>$_} } @navs;
1459        if (defined $head) {
1460                for (qw(commit commitdiff)) {
1461                        $arg{$_}{hash} = $head;
1462                }
1463                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1464                        for (qw(shortlog log)) {
1465                                $arg{$_}{hash} = $head;
1466                        }
1467                }
1468        }
1469        $arg{tree}{hash} = $treehead if defined $treehead;
1470        $arg{tree}{hash_base} = $treebase if defined $treebase;
1471
1472        print "<div class=\"page_nav\">\n" .
1473                (join " | ",
1474                 map { $_ eq $current ?
1475                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1476                 } @navs);
1477        print "<br/>\n$extra<br/>\n" .
1478              "</div>\n";
1479}
1480
1481sub format_paging_nav {
1482        my ($action, $hash, $head, $page, $nrevs) = @_;
1483        my $paging_nav;
1484
1485
1486        if ($hash ne $head || $page) {
1487                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1488        } else {
1489                $paging_nav .= "HEAD";
1490        }
1491
1492        if ($page > 0) {
1493                $paging_nav .= " &sdot; " .
1494                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1495                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1496        } else {
1497                $paging_nav .= " &sdot; prev";
1498        }
1499
1500        if ($nrevs >= (100 * ($page+1)-1)) {
1501                $paging_nav .= " &sdot; " .
1502                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1503                                 -accesskey => "n", -title => "Alt-n"}, "next");
1504        } else {
1505                $paging_nav .= " &sdot; next";
1506        }
1507
1508        return $paging_nav;
1509}
1510
1511## ......................................................................
1512## functions printing or outputting HTML: div
1513
1514sub git_print_header_div {
1515        my ($action, $title, $hash, $hash_base) = @_;
1516        my %args = ();
1517
1518        $args{action} = $action;
1519        $args{hash} = $hash if $hash;
1520        $args{hash_base} = $hash_base if $hash_base;
1521
1522        print "<div class=\"header\">\n" .
1523              $cgi->a({-href => href(%args), -class => "title"},
1524              $title ? $title : $action) .
1525              "\n</div>\n";
1526}
1527
1528#sub git_print_authorship (\%) {
1529sub git_print_authorship {
1530        my $co = shift;
1531
1532        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1533        print "<div class=\"author_date\">" .
1534              esc_html($co->{'author_name'}) .
1535              " [$ad{'rfc2822'}";
1536        if ($ad{'hour_local'} < 6) {
1537                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1538                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1539        } else {
1540                printf(" (%02d:%02d %s)",
1541                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1542        }
1543        print "]</div>\n";
1544}
1545
1546sub git_print_page_path {
1547        my $name = shift;
1548        my $type = shift;
1549        my $hb = shift;
1550
1551        if (!defined $name) {
1552                print "<div class=\"page_path\">/</div>\n";
1553        } else {
1554                my @dirname = split '/', $name;
1555                my $basename = pop @dirname;
1556                my $fullname = '';
1557
1558                print "<div class=\"page_path\">";
1559                print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1560                              -title => 'tree root'}, "[$project]");
1561                print " / ";
1562                foreach my $dir (@dirname) {
1563                        $fullname .= ($fullname ? '/' : '') . $dir;
1564                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1565                                                     hash_base=>$hb),
1566                                      -title => $fullname}, esc_html($dir));
1567                        print " / ";
1568                }
1569                if (defined $type && $type eq 'blob') {
1570                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1571                                                     hash_base=>$hb),
1572                                      -title => $name}, esc_html($basename));
1573                } elsif (defined $type && $type eq 'tree') {
1574                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1575                                                     hash_base=>$hb),
1576                                      -title => $name}, esc_html($basename));
1577                } else {
1578                        print esc_html($basename);
1579                }
1580                print "<br/></div>\n";
1581        }
1582}
1583
1584# sub git_print_log (\@;%) {
1585sub git_print_log ($;%) {
1586        my $log = shift;
1587        my %opts = @_;
1588
1589        if ($opts{'-remove_title'}) {
1590                # remove title, i.e. first line of log
1591                shift @$log;
1592        }
1593        # remove leading empty lines
1594        while (defined $log->[0] && $log->[0] eq "") {
1595                shift @$log;
1596        }
1597
1598        # print log
1599        my $signoff = 0;
1600        my $empty = 0;
1601        foreach my $line (@$log) {
1602                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1603                        $signoff = 1;
1604                        $empty = 0;
1605                        if (! $opts{'-remove_signoff'}) {
1606                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1607                                next;
1608                        } else {
1609                                # remove signoff lines
1610                                next;
1611                        }
1612                } else {
1613                        $signoff = 0;
1614                }
1615
1616                # print only one empty line
1617                # do not print empty line after signoff
1618                if ($line eq "") {
1619                        next if ($empty || $signoff);
1620                        $empty = 1;
1621                } else {
1622                        $empty = 0;
1623                }
1624
1625                print format_log_line_html($line) . "<br/>\n";
1626        }
1627
1628        if ($opts{'-final_empty_line'}) {
1629                # end with single empty line
1630                print "<br/>\n" unless $empty;
1631        }
1632}
1633
1634sub git_print_simplified_log {
1635        my $log = shift;
1636        my $remove_title = shift;
1637
1638        git_print_log($log,
1639                -final_empty_line=> 1,
1640                -remove_title => $remove_title);
1641}
1642
1643# print tree entry (row of git_tree), but without encompassing <tr> element
1644sub git_print_tree_entry {
1645        my ($t, $basedir, $hash_base, $have_blame) = @_;
1646
1647        my %base_key = ();
1648        $base_key{hash_base} = $hash_base if defined $hash_base;
1649
1650        # The format of a table row is: mode list link.  Where mode is
1651        # the mode of the entry, list is the name of the entry, an href,
1652        # and link is the action links of the entry.
1653
1654        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1655        if ($t->{'type'} eq "blob") {
1656                print "<td class=\"list\">" .
1657                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1658                                               file_name=>"$basedir$t->{'name'}", %base_key),
1659                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1660                print "<td class=\"link\">";
1661                if ($have_blame) {
1662                        print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1663                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
1664                                      "blame");
1665                }
1666                if (defined $hash_base) {
1667                        if ($have_blame) {
1668                                print " | ";
1669                        }
1670                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1671                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1672                                      "history");
1673                }
1674                print " | " .
1675                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1676                                               file_name=>"$basedir$t->{'name'}")},
1677                                "raw");
1678                print "</td>\n";
1679
1680        } elsif ($t->{'type'} eq "tree") {
1681                print "<td class=\"list\">";
1682                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1683                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1684                              esc_html($t->{'name'}));
1685                print "</td>\n";
1686                print "<td class=\"link\">";
1687                if (defined $hash_base) {
1688                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1689                                                     file_name=>"$basedir$t->{'name'}")},
1690                                      "history");
1691                }
1692                print "</td>\n";
1693        }
1694}
1695
1696## ......................................................................
1697## functions printing large fragments of HTML
1698
1699sub git_difftree_body {
1700        my ($difftree, $hash, $parent) = @_;
1701
1702        print "<div class=\"list_head\">\n";
1703        if ($#{$difftree} > 10) {
1704                print(($#{$difftree} + 1) . " files changed:\n");
1705        }
1706        print "</div>\n";
1707
1708        print "<table class=\"diff_tree\">\n";
1709        my $alternate = 1;
1710        my $patchno = 0;
1711        foreach my $line (@{$difftree}) {
1712                my %diff = parse_difftree_raw_line($line);
1713
1714                if ($alternate) {
1715                        print "<tr class=\"dark\">\n";
1716                } else {
1717                        print "<tr class=\"light\">\n";
1718                }
1719                $alternate ^= 1;
1720
1721                my ($to_mode_oct, $to_mode_str, $to_file_type);
1722                my ($from_mode_oct, $from_mode_str, $from_file_type);
1723                if ($diff{'to_mode'} ne ('0' x 6)) {
1724                        $to_mode_oct = oct $diff{'to_mode'};
1725                        if (S_ISREG($to_mode_oct)) { # only for regular file
1726                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1727                        }
1728                        $to_file_type = file_type($diff{'to_mode'});
1729                }
1730                if ($diff{'from_mode'} ne ('0' x 6)) {
1731                        $from_mode_oct = oct $diff{'from_mode'};
1732                        if (S_ISREG($to_mode_oct)) { # only for regular file
1733                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1734                        }
1735                        $from_file_type = file_type($diff{'from_mode'});
1736                }
1737
1738                if ($diff{'status'} eq "A") { # created
1739                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1740                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1741                        $mode_chng   .= "]</span>";
1742                        print "<td>";
1743                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1744                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1745                                       -class => "list"}, esc_html($diff{'file'}));
1746                        print "</td>\n";
1747                        print "<td>$mode_chng</td>\n";
1748                        print "<td class=\"link\">";
1749                        if ($action eq 'commitdiff') {
1750                                # link to patch
1751                                $patchno++;
1752                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1753                        }
1754                        print "</td>\n";
1755
1756                } elsif ($diff{'status'} eq "D") { # deleted
1757                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1758                        print "<td>";
1759                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1760                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1761                                       -class => "list"}, esc_html($diff{'file'}));
1762                        print "</td>\n";
1763                        print "<td>$mode_chng</td>\n";
1764                        print "<td class=\"link\">";
1765                        if ($action eq 'commitdiff') {
1766                                # link to patch
1767                                $patchno++;
1768                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1769                                print " | ";
1770                        }
1771                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1772                                                     file_name=>$diff{'file'})},
1773                                      "blame") . " | ";
1774                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1775                                                     file_name=>$diff{'file'})},
1776                                      "history");
1777                        print "</td>\n";
1778
1779                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1780                        my $mode_chnge = "";
1781                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1782                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1783                                if ($from_file_type != $to_file_type) {
1784                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1785                                }
1786                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1787                                        if ($from_mode_str && $to_mode_str) {
1788                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1789                                        } elsif ($to_mode_str) {
1790                                                $mode_chnge .= " mode: $to_mode_str";
1791                                        }
1792                                }
1793                                $mode_chnge .= "]</span>\n";
1794                        }
1795                        print "<td>";
1796                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1797                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1798                                       -class => "list"}, esc_html($diff{'file'}));
1799                        print "</td>\n";
1800                        print "<td>$mode_chnge</td>\n";
1801                        print "<td class=\"link\">";
1802                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1803                                if ($action eq 'commitdiff') {
1804                                        # link to patch
1805                                        $patchno++;
1806                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1807                                } else {
1808                                        print $cgi->a({-href => href(action=>"blobdiff",
1809                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1810                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1811                                                                     file_name=>$diff{'file'})},
1812                                                      "diff");
1813                                }
1814                                print " | ";
1815                        }
1816                        print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1817                                                     file_name=>$diff{'file'})},
1818                                      "blame") . " | ";
1819                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1820                                                     file_name=>$diff{'file'})},
1821                                      "history");
1822                        print "</td>\n";
1823
1824                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1825                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1826                        my $nstatus = $status_name{$diff{'status'}};
1827                        my $mode_chng = "";
1828                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1829                                # mode also for directories, so we cannot use $to_mode_str
1830                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1831                        }
1832                        print "<td>" .
1833                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1834                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1835                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1836                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1837                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1838                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1839                                      -class => "list"}, esc_html($diff{'from_file'})) .
1840                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1841                              "<td class=\"link\">";
1842                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1843                                if ($action eq 'commitdiff') {
1844                                        # link to patch
1845                                        $patchno++;
1846                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1847                                } else {
1848                                        print $cgi->a({-href => href(action=>"blobdiff",
1849                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1850                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1851                                                                     file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1852                                                      "diff");
1853                                }
1854                                print " | ";
1855                        }
1856                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1857                                                     file_name=>$diff{'from_file'})},
1858                                      "blame") . " | ";
1859                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1860                                                     file_name=>$diff{'from_file'})},
1861                                      "history");
1862                        print "</td>\n";
1863
1864                } # we should not encounter Unmerged (U) or Unknown (X) status
1865                print "</tr>\n";
1866        }
1867        print "</table>\n";
1868}
1869
1870sub git_patchset_body {
1871        my ($fd, $difftree, $hash, $hash_parent) = @_;
1872
1873        my $patch_idx = 0;
1874        my $in_header = 0;
1875        my $patch_found = 0;
1876        my $diffinfo;
1877
1878        print "<div class=\"patchset\">\n";
1879
1880        LINE:
1881        while (my $patch_line = <$fd>) {
1882                chomp $patch_line;
1883
1884                if ($patch_line =~ m/^diff /) { # "git diff" header
1885                        # beginning of patch (in patchset)
1886                        if ($patch_found) {
1887                                # close previous patch
1888                                print "</div>\n"; # class="patch"
1889                        } else {
1890                                # first patch in patchset
1891                                $patch_found = 1;
1892                        }
1893                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1894
1895                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1896                                $diffinfo = $difftree->[$patch_idx];
1897                        } else {
1898                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1899                        }
1900                        $patch_idx++;
1901
1902                        # for now, no extended header, hence we skip empty patches
1903                        # companion to  next LINE if $in_header;
1904                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1905                                $in_header = 1;
1906                                next LINE;
1907                        }
1908
1909                        if ($diffinfo->{'status'} eq "A") { # added
1910                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1911                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1912                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1913                                              $diffinfo->{'to_id'}) . "(new)" .
1914                                      "</div>\n"; # class="diff_info"
1915
1916                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1917                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1918                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1919                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1920                                              $diffinfo->{'from_id'}) . "(deleted)" .
1921                                      "</div>\n"; # class="diff_info"
1922
1923                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1924                                 $diffinfo->{'status'} eq "C" || # copied
1925                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1926                                print "<div class=\"diff_info\">" .
1927                                      file_type($diffinfo->{'from_mode'}) . ":" .
1928                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1929                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1930                                              $diffinfo->{'from_id'}) .
1931                                      " -> " .
1932                                      file_type($diffinfo->{'to_mode'}) . ":" .
1933                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1934                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1935                                              $diffinfo->{'to_id'});
1936                                print "</div>\n"; # class="diff_info"
1937
1938                        } else { # modified, mode changed, ...
1939                                print "<div class=\"diff_info\">" .
1940                                      file_type($diffinfo->{'from_mode'}) . ":" .
1941                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1942                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1943                                              $diffinfo->{'from_id'}) .
1944                                      " -> " .
1945                                      file_type($diffinfo->{'to_mode'}) . ":" .
1946                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1947                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1948                                              $diffinfo->{'to_id'});
1949                                print "</div>\n"; # class="diff_info"
1950                        }
1951
1952                        #print "<div class=\"diff extended_header\">\n";
1953                        $in_header = 1;
1954                        next LINE;
1955                } # start of patch in patchset
1956
1957
1958                if ($in_header && $patch_line =~ m/^---/) {
1959                        #print "</div>\n"; # class="diff extended_header"
1960                        $in_header = 0;
1961
1962                        my $file = $diffinfo->{'from_file'};
1963                        $file  ||= $diffinfo->{'file'};
1964                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1965                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1966                                        -class => "list"}, esc_html($file));
1967                        $patch_line =~ s|a/.*$|a/$file|g;
1968                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1969
1970                        $patch_line = <$fd>;
1971                        chomp $patch_line;
1972
1973                        #$patch_line =~ m/^+++/;
1974                        $file    = $diffinfo->{'to_file'};
1975                        $file  ||= $diffinfo->{'file'};
1976                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1977                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1978                                        -class => "list"}, esc_html($file));
1979                        $patch_line =~ s|b/.*|b/$file|g;
1980                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1981
1982                        next LINE;
1983                }
1984                next LINE if $in_header;
1985
1986                print format_diff_line($patch_line);
1987        }
1988        print "</div>\n" if $patch_found; # class="patch"
1989
1990        print "</div>\n"; # class="patchset"
1991}
1992
1993# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1994
1995sub git_shortlog_body {
1996        # uses global variable $project
1997        my ($revlist, $from, $to, $refs, $extra) = @_;
1998
1999        $from = 0 unless defined $from;
2000        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2001
2002        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2003        my $alternate = 1;
2004        for (my $i = $from; $i <= $to; $i++) {
2005                my $commit = $revlist->[$i];
2006                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2007                my $ref = format_ref_marker($refs, $commit);
2008                my %co = parse_commit($commit);
2009                if ($alternate) {
2010                        print "<tr class=\"dark\">\n";
2011                } else {
2012                        print "<tr class=\"light\">\n";
2013                }
2014                $alternate ^= 1;
2015                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2016                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2017                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2018                      "<td>";
2019                print format_subject_html($co{'title'}, $co{'title_short'},
2020                                          href(action=>"commit", hash=>$commit), $ref);
2021                print "</td>\n" .
2022                      "<td class=\"link\">" .
2023                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2024                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2025                      $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2026                print "</td>\n" .
2027                      "</tr>\n";
2028        }
2029        if (defined $extra) {
2030                print "<tr>\n" .
2031                      "<td colspan=\"4\">$extra</td>\n" .
2032                      "</tr>\n";
2033        }
2034        print "</table>\n";
2035}
2036
2037sub git_history_body {
2038        # Warning: assumes constant type (blob or tree) during history
2039        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2040
2041        $from = 0 unless defined $from;
2042        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2043
2044        print "<table class=\"history\" cellspacing=\"0\">\n";
2045        my $alternate = 1;
2046        for (my $i = $from; $i <= $to; $i++) {
2047                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2048                        next;
2049                }
2050
2051                my $commit = $1;
2052                my %co = parse_commit($commit);
2053                if (!%co) {
2054                        next;
2055                }
2056
2057                my $ref = format_ref_marker($refs, $commit);
2058
2059                if ($alternate) {
2060                        print "<tr class=\"dark\">\n";
2061                } else {
2062                        print "<tr class=\"light\">\n";
2063                }
2064                $alternate ^= 1;
2065                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2066                      # shortlog uses      chop_str($co{'author_name'}, 10)
2067                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2068                      "<td>";
2069                # originally git_history used chop_str($co{'title'}, 50)
2070                print format_subject_html($co{'title'}, $co{'title_short'},
2071                                          href(action=>"commit", hash=>$commit), $ref);
2072                print "</td>\n" .
2073                      "<td class=\"link\">" .
2074                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2075                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2076
2077                if ($ftype eq 'blob') {
2078                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2079                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2080                        if (defined $blob_current && defined $blob_parent &&
2081                                        $blob_current ne $blob_parent) {
2082                                print " | " .
2083                                        $cgi->a({-href => href(action=>"blobdiff",
2084                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2085                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2086                                                               file_name=>$file_name)},
2087                                                "diff to current");
2088                        }
2089                }
2090                print "</td>\n" .
2091                      "</tr>\n";
2092        }
2093        if (defined $extra) {
2094                print "<tr>\n" .
2095                      "<td colspan=\"4\">$extra</td>\n" .
2096                      "</tr>\n";
2097        }
2098        print "</table>\n";
2099}
2100
2101sub git_tags_body {
2102        # uses global variable $project
2103        my ($taglist, $from, $to, $extra) = @_;
2104        $from = 0 unless defined $from;
2105        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2106
2107        print "<table class=\"tags\" cellspacing=\"0\">\n";
2108        my $alternate = 1;
2109        for (my $i = $from; $i <= $to; $i++) {
2110                my $entry = $taglist->[$i];
2111                my %tag = %$entry;
2112                my $comment_lines = $tag{'comment'};
2113                my $comment = shift @$comment_lines;
2114                my $comment_short;
2115                if (defined $comment) {
2116                        $comment_short = chop_str($comment, 30, 5);
2117                }
2118                if ($alternate) {
2119                        print "<tr class=\"dark\">\n";
2120                } else {
2121                        print "<tr class=\"light\">\n";
2122                }
2123                $alternate ^= 1;
2124                print "<td><i>$tag{'age'}</i></td>\n" .
2125                      "<td>" .
2126                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2127                               -class => "list name"}, esc_html($tag{'name'})) .
2128                      "</td>\n" .
2129                      "<td>";
2130                if (defined $comment) {
2131                        print format_subject_html($comment, $comment_short,
2132                                                  href(action=>"tag", hash=>$tag{'id'}));
2133                }
2134                print "</td>\n" .
2135                      "<td class=\"selflink\">";
2136                if ($tag{'type'} eq "tag") {
2137                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2138                } else {
2139                        print "&nbsp;";
2140                }
2141                print "</td>\n" .
2142                      "<td class=\"link\">" . " | " .
2143                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2144                if ($tag{'reftype'} eq "commit") {
2145                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2146                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2147                } elsif ($tag{'reftype'} eq "blob") {
2148                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2149                }
2150                print "</td>\n" .
2151                      "</tr>";
2152        }
2153        if (defined $extra) {
2154                print "<tr>\n" .
2155                      "<td colspan=\"5\">$extra</td>\n" .
2156                      "</tr>\n";
2157        }
2158        print "</table>\n";
2159}
2160
2161sub git_heads_body {
2162        # uses global variable $project
2163        my ($headlist, $head, $from, $to, $extra) = @_;
2164        $from = 0 unless defined $from;
2165        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2166
2167        print "<table class=\"heads\" cellspacing=\"0\">\n";
2168        my $alternate = 1;
2169        for (my $i = $from; $i <= $to; $i++) {
2170                my $entry = $headlist->[$i];
2171                my %tag = %$entry;
2172                my $curr = $tag{'id'} eq $head;
2173                if ($alternate) {
2174                        print "<tr class=\"dark\">\n";
2175                } else {
2176                        print "<tr class=\"light\">\n";
2177                }
2178                $alternate ^= 1;
2179                print "<td><i>$tag{'age'}</i></td>\n" .
2180                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2181                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2182                               -class => "list name"},esc_html($tag{'name'})) .
2183                      "</td>\n" .
2184                      "<td class=\"link\">" .
2185                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2186                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2187                      $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2188                      "</td>\n" .
2189                      "</tr>";
2190        }
2191        if (defined $extra) {
2192                print "<tr>\n" .
2193                      "<td colspan=\"3\">$extra</td>\n" .
2194                      "</tr>\n";
2195        }
2196        print "</table>\n";
2197}
2198
2199## ======================================================================
2200## ======================================================================
2201## actions
2202
2203sub git_project_list {
2204        my $order = $cgi->param('o');
2205        if (defined $order && $order !~ m/project|descr|owner|age/) {
2206                die_error(undef, "Unknown order parameter");
2207        }
2208
2209        my @list = git_get_projects_list();
2210        my @projects;
2211        if (!@list) {
2212                die_error(undef, "No projects found");
2213        }
2214        foreach my $pr (@list) {
2215                my $head = git_get_head_hash($pr->{'path'});
2216                if (!defined $head) {
2217                        next;
2218                }
2219                $git_dir = "$projectroot/$pr->{'path'}";
2220                my %co = parse_commit($head);
2221                if (!%co) {
2222                        next;
2223                }
2224                $pr->{'commit'} = \%co;
2225                if (!defined $pr->{'descr'}) {
2226                        my $descr = git_get_project_description($pr->{'path'}) || "";
2227                        $pr->{'descr'} = chop_str($descr, 25, 5);
2228                }
2229                if (!defined $pr->{'owner'}) {
2230                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2231                }
2232                push @projects, $pr;
2233        }
2234
2235        git_header_html();
2236        if (-f $home_text) {
2237                print "<div class=\"index_include\">\n";
2238                open (my $fd, $home_text);
2239                print <$fd>;
2240                close $fd;
2241                print "</div>\n";
2242        }
2243        print "<table class=\"project_list\">\n" .
2244              "<tr>\n";
2245        $order ||= "project";
2246        if ($order eq "project") {
2247                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2248                print "<th>Project</th>\n";
2249        } else {
2250                print "<th>" .
2251                      $cgi->a({-href => href(project=>undef, order=>'project'),
2252                               -class => "header"}, "Project") .
2253                      "</th>\n";
2254        }
2255        if ($order eq "descr") {
2256                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2257                print "<th>Description</th>\n";
2258        } else {
2259                print "<th>" .
2260                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2261                               -class => "header"}, "Description") .
2262                      "</th>\n";
2263        }
2264        if ($order eq "owner") {
2265                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2266                print "<th>Owner</th>\n";
2267        } else {
2268                print "<th>" .
2269                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2270                               -class => "header"}, "Owner") .
2271                      "</th>\n";
2272        }
2273        if ($order eq "age") {
2274                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2275                print "<th>Last Change</th>\n";
2276        } else {
2277                print "<th>" .
2278                      $cgi->a({-href => href(project=>undef, order=>'age'),
2279                               -class => "header"}, "Last Change") .
2280                      "</th>\n";
2281        }
2282        print "<th></th>\n" .
2283              "</tr>\n";
2284        my $alternate = 1;
2285        foreach my $pr (@projects) {
2286                if ($alternate) {
2287                        print "<tr class=\"dark\">\n";
2288                } else {
2289                        print "<tr class=\"light\">\n";
2290                }
2291                $alternate ^= 1;
2292                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2293                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2294                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2295                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2296                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2297                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2298                      "<td class=\"link\">" .
2299                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2300                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2301                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2302                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2303                      "</td>\n" .
2304                      "</tr>\n";
2305        }
2306        print "</table>\n";
2307        git_footer_html();
2308}
2309
2310sub git_project_index {
2311        my @projects = git_get_projects_list();
2312
2313        print $cgi->header(
2314                -type => 'text/plain',
2315                -charset => 'utf-8',
2316                -content_disposition => 'inline; filename="index.aux"');
2317
2318        foreach my $pr (@projects) {
2319                if (!exists $pr->{'owner'}) {
2320                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2321                }
2322
2323                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2324                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2325                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2326                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2327                $path  =~ s/ /\+/g;
2328                $owner =~ s/ /\+/g;
2329
2330                print "$path $owner\n";
2331        }
2332}
2333
2334sub git_summary {
2335        my $descr = git_get_project_description($project) || "none";
2336        my $head = git_get_head_hash($project);
2337        my %co = parse_commit($head);
2338        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2339
2340        my $owner = git_get_project_owner($project);
2341
2342        my ($reflist, $refs) = git_get_refs_list();
2343
2344        my @taglist;
2345        my @headlist;
2346        foreach my $ref (@$reflist) {
2347                if ($ref->{'name'} =~ s!^heads/!!) {
2348                        push @headlist, $ref;
2349                } else {
2350                        $ref->{'name'} =~ s!^tags/!!;
2351                        push @taglist, $ref;
2352                }
2353        }
2354
2355        git_header_html();
2356        git_print_page_nav('summary','', $head);
2357
2358        print "<div class=\"title\">&nbsp;</div>\n";
2359        print "<table cellspacing=\"0\">\n" .
2360              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2361              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2362              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2363        # use per project git URL list in $projectroot/$project/cloneurl
2364        # or make project git URL from git base URL and project name
2365        my $url_tag = "URL";
2366        my @url_list = git_get_project_url_list($project);
2367        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2368        foreach my $git_url (@url_list) {
2369                next unless $git_url;
2370                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2371                $url_tag = "";
2372        }
2373        print "</table>\n";
2374
2375        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2376                git_get_head_hash($project)
2377                or die_error(undef, "Open git-rev-list failed");
2378        my @revlist = map { chomp; $_ } <$fd>;
2379        close $fd;
2380        git_print_header_div('shortlog');
2381        git_shortlog_body(\@revlist, 0, 15, $refs,
2382                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2383
2384        if (@taglist) {
2385                git_print_header_div('tags');
2386                git_tags_body(\@taglist, 0, 15,
2387                              $cgi->a({-href => href(action=>"tags")}, "..."));
2388        }
2389
2390        if (@headlist) {
2391                git_print_header_div('heads');
2392                git_heads_body(\@headlist, $head, 0, 15,
2393                               $cgi->a({-href => href(action=>"heads")}, "..."));
2394        }
2395
2396        git_footer_html();
2397}
2398
2399sub git_tag {
2400        my $head = git_get_head_hash($project);
2401        git_header_html();
2402        git_print_page_nav('','', $head,undef,$head);
2403        my %tag = parse_tag($hash);
2404        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2405        print "<div class=\"title_text\">\n" .
2406              "<table cellspacing=\"0\">\n" .
2407              "<tr>\n" .
2408              "<td>object</td>\n" .
2409              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2410                               $tag{'object'}) . "</td>\n" .
2411              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2412                                              $tag{'type'}) . "</td>\n" .
2413              "</tr>\n";
2414        if (defined($tag{'author'})) {
2415                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2416                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2417                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2418                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2419                        "</td></tr>\n";
2420        }
2421        print "</table>\n\n" .
2422              "</div>\n";
2423        print "<div class=\"page_body\">";
2424        my $comment = $tag{'comment'};
2425        foreach my $line (@$comment) {
2426                print esc_html($line) . "<br/>\n";
2427        }
2428        print "</div>\n";
2429        git_footer_html();
2430}
2431
2432sub git_blame2 {
2433        my $fd;
2434        my $ftype;
2435
2436        my ($have_blame) = gitweb_check_feature('blame');
2437        if (!$have_blame) {
2438                die_error('403 Permission denied', "Permission denied");
2439        }
2440        die_error('404 Not Found', "File name not defined") if (!$file_name);
2441        $hash_base ||= git_get_head_hash($project);
2442        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2443        my %co = parse_commit($hash_base)
2444                or die_error(undef, "Reading commit failed");
2445        if (!defined $hash) {
2446                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2447                        or die_error(undef, "Error looking up file");
2448        }
2449        $ftype = git_get_type($hash);
2450        if ($ftype !~ "blob") {
2451                die_error("400 Bad Request", "Object is not a blob");
2452        }
2453        open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2454                or die_error(undef, "Open git-blame failed");
2455        git_header_html();
2456        my $formats_nav =
2457                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2458                        "blob") .
2459                " | " .
2460                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2461                        "history") .
2462                " | " .
2463                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2464                        "HEAD");
2465        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2466        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2467        git_print_page_path($file_name, $ftype, $hash_base);
2468        my @rev_color = (qw(light2 dark2));
2469        my $num_colors = scalar(@rev_color);
2470        my $current_color = 0;
2471        my $last_rev;
2472        print <<HTML;
2473<div class="page_body">
2474<table class="blame">
2475<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2476HTML
2477        while (<$fd>) {
2478                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2479                my $full_rev = $1;
2480                my $rev = substr($full_rev, 0, 8);
2481                my $lineno = $2;
2482                my $data = $3;
2483
2484                if (!defined $last_rev) {
2485                        $last_rev = $full_rev;
2486                } elsif ($last_rev ne $full_rev) {
2487                        $last_rev = $full_rev;
2488                        $current_color = ++$current_color % $num_colors;
2489                }
2490                print "<tr class=\"$rev_color[$current_color]\">\n";
2491                print "<td class=\"sha1\">" .
2492                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2493                                esc_html($rev)) . "</td>\n";
2494                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2495                      esc_html($lineno) . "</a></td>\n";
2496                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2497                print "</tr>\n";
2498        }
2499        print "</table>\n";
2500        print "</div>";
2501        close $fd
2502                or print "Reading blob failed\n";
2503        git_footer_html();
2504}
2505
2506sub git_blame {
2507        my $fd;
2508
2509        my ($have_blame) = gitweb_check_feature('blame');
2510        if (!$have_blame) {
2511                die_error('403 Permission denied', "Permission denied");
2512        }
2513        die_error('404 Not Found', "File name not defined") if (!$file_name);
2514        $hash_base ||= git_get_head_hash($project);
2515        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2516        my %co = parse_commit($hash_base)
2517                or die_error(undef, "Reading commit failed");
2518        if (!defined $hash) {
2519                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2520                        or die_error(undef, "Error lookup file");
2521        }
2522        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2523                or die_error(undef, "Open git-annotate failed");
2524        git_header_html();
2525        my $formats_nav =
2526                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2527                        "blob") .
2528                " | " .
2529                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2530                        "history") .
2531                " | " .
2532                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2533                        "HEAD");
2534        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2535        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2536        git_print_page_path($file_name, 'blob', $hash_base);
2537        print "<div class=\"page_body\">\n";
2538        print <<HTML;
2539<table class="blame">
2540  <tr>
2541    <th>Commit</th>
2542    <th>Age</th>
2543    <th>Author</th>
2544    <th>Line</th>
2545    <th>Data</th>
2546  </tr>
2547HTML
2548        my @line_class = (qw(light dark));
2549        my $line_class_len = scalar (@line_class);
2550        my $line_class_num = $#line_class;
2551        while (my $line = <$fd>) {
2552                my $long_rev;
2553                my $short_rev;
2554                my $author;
2555                my $time;
2556                my $lineno;
2557                my $data;
2558                my $age;
2559                my $age_str;
2560                my $age_class;
2561
2562                chomp $line;
2563                $line_class_num = ($line_class_num + 1) % $line_class_len;
2564
2565                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2566                        $long_rev = $1;
2567                        $author   = $2;
2568                        $time     = $3;
2569                        $lineno   = $4;
2570                        $data     = $5;
2571                } else {
2572                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2573                        next;
2574                }
2575                $short_rev  = substr ($long_rev, 0, 8);
2576                $age        = time () - $time;
2577                $age_str    = age_string ($age);
2578                $age_str    =~ s/ /&nbsp;/g;
2579                $age_class  = age_class($age);
2580                $author     = esc_html ($author);
2581                $author     =~ s/ /&nbsp;/g;
2582
2583                $data = untabify($data);
2584                $data = esc_html ($data);
2585
2586                print <<HTML;
2587  <tr class="$line_class[$line_class_num]">
2588    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2589    <td class="$age_class">$age_str</td>
2590    <td>$author</td>
2591    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2592    <td class="pre">$data</td>
2593  </tr>
2594HTML
2595        } # while (my $line = <$fd>)
2596        print "</table>\n\n";
2597        close $fd
2598                or print "Reading blob failed.\n";
2599        print "</div>";
2600        git_footer_html();
2601}
2602
2603sub git_tags {
2604        my $head = git_get_head_hash($project);
2605        git_header_html();
2606        git_print_page_nav('','', $head,undef,$head);
2607        git_print_header_div('summary', $project);
2608
2609        my ($taglist) = git_get_refs_list("tags");
2610        if (@$taglist) {
2611                git_tags_body($taglist);
2612        }
2613        git_footer_html();
2614}
2615
2616sub git_heads {
2617        my $head = git_get_head_hash($project);
2618        git_header_html();
2619        git_print_page_nav('','', $head,undef,$head);
2620        git_print_header_div('summary', $project);
2621
2622        my ($headlist) = git_get_refs_list("heads");
2623        if (@$headlist) {
2624                git_heads_body($headlist, $head);
2625        }
2626        git_footer_html();
2627}
2628
2629sub git_blob_plain {
2630        my $expires;
2631
2632        if (!defined $hash) {
2633                if (defined $file_name) {
2634                        my $base = $hash_base || git_get_head_hash($project);
2635                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2636                                or die_error(undef, "Error lookup file");
2637                } else {
2638                        die_error(undef, "No file name defined");
2639                }
2640        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2641                # blobs defined by non-textual hash id's can be cached
2642                $expires = "+1d";
2643        }
2644
2645        my $type = shift;
2646        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2647                or die_error(undef, "Couldn't cat $file_name, $hash");
2648
2649        $type ||= blob_mimetype($fd, $file_name);
2650
2651        # save as filename, even when no $file_name is given
2652        my $save_as = "$hash";
2653        if (defined $file_name) {
2654                $save_as = $file_name;
2655        } elsif ($type =~ m/^text\//) {
2656                $save_as .= '.txt';
2657        }
2658
2659        print $cgi->header(
2660                -type => "$type",
2661                -expires=>$expires,
2662                -content_disposition => 'inline; filename="' . "$save_as" . '"');
2663        undef $/;
2664        binmode STDOUT, ':raw';
2665        print <$fd>;
2666        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2667        $/ = "\n";
2668        close $fd;
2669}
2670
2671sub git_blob {
2672        my $expires;
2673
2674        if (!defined $hash) {
2675                if (defined $file_name) {
2676                        my $base = $hash_base || git_get_head_hash($project);
2677                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2678                                or die_error(undef, "Error lookup file");
2679                } else {
2680                        die_error(undef, "No file name defined");
2681                }
2682        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2683                # blobs defined by non-textual hash id's can be cached
2684                $expires = "+1d";
2685        }
2686
2687        my ($have_blame) = gitweb_check_feature('blame');
2688        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2689                or die_error(undef, "Couldn't cat $file_name, $hash");
2690        my $mimetype = blob_mimetype($fd, $file_name);
2691        if ($mimetype !~ m/^text\//) {
2692                close $fd;
2693                return git_blob_plain($mimetype);
2694        }
2695        git_header_html(undef, $expires);
2696        my $formats_nav = '';
2697        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2698                if (defined $file_name) {
2699                        if ($have_blame) {
2700                                $formats_nav .=
2701                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2702                                                               hash=>$hash, file_name=>$file_name)},
2703                                                "blame") .
2704                                        " | ";
2705                        }
2706                        $formats_nav .=
2707                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2708                                                       hash=>$hash, file_name=>$file_name)},
2709                                        "history") .
2710                                " | " .
2711                                $cgi->a({-href => href(action=>"blob_plain",
2712                                                       hash=>$hash, file_name=>$file_name)},
2713                                        "raw") .
2714                                " | " .
2715                                $cgi->a({-href => href(action=>"blob",
2716                                                       hash_base=>"HEAD", file_name=>$file_name)},
2717                                        "HEAD");
2718                } else {
2719                        $formats_nav .=
2720                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2721                }
2722                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2723                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2724        } else {
2725                print "<div class=\"page_nav\">\n" .
2726                      "<br/><br/></div>\n" .
2727                      "<div class=\"title\">$hash</div>\n";
2728        }
2729        git_print_page_path($file_name, "blob", $hash_base);
2730        print "<div class=\"page_body\">\n";
2731        my $nr;
2732        while (my $line = <$fd>) {
2733                chomp $line;
2734                $nr++;
2735                $line = untabify($line);
2736                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2737                       $nr, $nr, $nr, esc_html($line);
2738        }
2739        close $fd
2740                or print "Reading blob failed.\n";
2741        print "</div>";
2742        git_footer_html();
2743}
2744
2745sub git_tree {
2746        my $have_snapshot = gitweb_have_snapshot();
2747
2748        if (!defined $hash_base) {
2749                $hash_base = "HEAD";
2750        }
2751        if (!defined $hash) {
2752                if (defined $file_name) {
2753                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2754                } else {
2755                        $hash = $hash_base;
2756                }
2757        }
2758        $/ = "\0";
2759        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2760                or die_error(undef, "Open git-ls-tree failed");
2761        my @entries = map { chomp; $_ } <$fd>;
2762        close $fd or die_error(undef, "Reading tree failed");
2763        $/ = "\n";
2764
2765        my $refs = git_get_references();
2766        my $ref = format_ref_marker($refs, $hash_base);
2767        git_header_html();
2768        my $base = "";
2769        my ($have_blame) = gitweb_check_feature('blame');
2770        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2771                my @views_nav = ();
2772                if (defined $file_name) {
2773                        push @views_nav,
2774                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2775                                                       hash=>$hash, file_name=>$file_name)},
2776                                        "history"),
2777                                $cgi->a({-href => href(action=>"tree",
2778                                                       hash_base=>"HEAD", file_name=>$file_name)},
2779                                        "HEAD"),
2780                }
2781                if ($have_snapshot) {
2782                        # FIXME: Should be available when we have no hash base as well.
2783                        push @views_nav,
2784                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2785                                        "snapshot");
2786                }
2787                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2788                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2789        } else {
2790                undef $hash_base;
2791                print "<div class=\"page_nav\">\n";
2792                print "<br/><br/></div>\n";
2793                print "<div class=\"title\">$hash</div>\n";
2794        }
2795        if (defined $file_name) {
2796                $base = esc_html("$file_name/");
2797        }
2798        git_print_page_path($file_name, 'tree', $hash_base);
2799        print "<div class=\"page_body\">\n";
2800        print "<table cellspacing=\"0\">\n";
2801        my $alternate = 1;
2802        foreach my $line (@entries) {
2803                my %t = parse_ls_tree_line($line, -z => 1);
2804
2805                if ($alternate) {
2806                        print "<tr class=\"dark\">\n";
2807                } else {
2808                        print "<tr class=\"light\">\n";
2809                }
2810                $alternate ^= 1;
2811
2812                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2813
2814                print "</tr>\n";
2815        }
2816        print "</table>\n" .
2817              "</div>";
2818        git_footer_html();
2819}
2820
2821sub git_snapshot {
2822        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2823        my $have_snapshot = (defined $ctype && defined $suffix);
2824        if (!$have_snapshot) {
2825                die_error('403 Permission denied', "Permission denied");
2826        }
2827
2828        if (!defined $hash) {
2829                $hash = git_get_head_hash($project);
2830        }
2831
2832        my $filename = basename($project) . "-$hash.tar.$suffix";
2833
2834        print $cgi->header(
2835                -type => 'application/x-tar',
2836                -content_encoding => $ctype,
2837                -content_disposition => 'inline; filename="' . "$filename" . '"',
2838                -status => '200 OK');
2839
2840        my $git_command = git_cmd_str();
2841        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2842                die_error(undef, "Execute git-tar-tree failed.");
2843        binmode STDOUT, ':raw';
2844        print <$fd>;
2845        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2846        close $fd;
2847
2848}
2849
2850sub git_log {
2851        my $head = git_get_head_hash($project);
2852        if (!defined $hash) {
2853                $hash = $head;
2854        }
2855        if (!defined $page) {
2856                $page = 0;
2857        }
2858        my $refs = git_get_references();
2859
2860        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2861        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2862                or die_error(undef, "Open git-rev-list failed");
2863        my @revlist = map { chomp; $_ } <$fd>;
2864        close $fd;
2865
2866        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2867
2868        git_header_html();
2869        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2870
2871        if (!@revlist) {
2872                my %co = parse_commit($hash);
2873
2874                git_print_header_div('summary', $project);
2875                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2876        }
2877        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2878                my $commit = $revlist[$i];
2879                my $ref = format_ref_marker($refs, $commit);
2880                my %co = parse_commit($commit);
2881                next if !%co;
2882                my %ad = parse_date($co{'author_epoch'});
2883                git_print_header_div('commit',
2884                               "<span class=\"age\">$co{'age_string'}</span>" .
2885                               esc_html($co{'title'}) . $ref,
2886                               $commit);
2887                print "<div class=\"title_text\">\n" .
2888                      "<div class=\"log_link\">\n" .
2889                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2890                      " | " .
2891                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2892                      " | " .
2893                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2894                      "<br/>\n" .
2895                      "</div>\n" .
2896                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2897                      "</div>\n";
2898
2899                print "<div class=\"log_body\">\n";
2900                git_print_simplified_log($co{'comment'});
2901                print "</div>\n";
2902        }
2903        git_footer_html();
2904}
2905
2906sub git_commit {
2907        my %co = parse_commit($hash);
2908        if (!%co) {
2909                die_error(undef, "Unknown commit object");
2910        }
2911        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2912        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2913
2914        my $parent = $co{'parent'};
2915        if (!defined $parent) {
2916                $parent = "--root";
2917        }
2918        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2919                or die_error(undef, "Open git-diff-tree failed");
2920        my @difftree = map { chomp; $_ } <$fd>;
2921        close $fd or die_error(undef, "Reading git-diff-tree failed");
2922
2923        # non-textual hash id's can be cached
2924        my $expires;
2925        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2926                $expires = "+1d";
2927        }
2928        my $refs = git_get_references();
2929        my $ref = format_ref_marker($refs, $co{'id'});
2930
2931        my $have_snapshot = gitweb_have_snapshot();
2932
2933        my @views_nav = ();
2934        if (defined $file_name && defined $co{'parent'}) {
2935                push @views_nav,
2936                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2937                                "blame");
2938        }
2939        if (defined $co{'parent'}) {
2940                push @views_nav,
2941                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
2942                        $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
2943        }
2944        git_header_html(undef, $expires);
2945        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2946                           $hash, $co{'tree'}, $hash,
2947                           join (' | ', @views_nav));
2948
2949        if (defined $co{'parent'}) {
2950                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2951        } else {
2952                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2953        }
2954        print "<div class=\"title_text\">\n" .
2955              "<table cellspacing=\"0\">\n";
2956        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2957              "<tr>" .
2958              "<td></td><td> $ad{'rfc2822'}";
2959        if ($ad{'hour_local'} < 6) {
2960                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2961                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2962        } else {
2963                printf(" (%02d:%02d %s)",
2964                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2965        }
2966        print "</td>" .
2967              "</tr>\n";
2968        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2969        print "<tr><td></td><td> $cd{'rfc2822'}" .
2970              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2971              "</td></tr>\n";
2972        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2973        print "<tr>" .
2974              "<td>tree</td>" .
2975              "<td class=\"sha1\">" .
2976              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2977                       class => "list"}, $co{'tree'}) .
2978              "</td>" .
2979              "<td class=\"link\">" .
2980              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2981                      "tree");
2982        if ($have_snapshot) {
2983                print " | " .
2984                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2985        }
2986        print "</td>" .
2987              "</tr>\n";
2988        my $parents = $co{'parents'};
2989        foreach my $par (@$parents) {
2990                print "<tr>" .
2991                      "<td>parent</td>" .
2992                      "<td class=\"sha1\">" .
2993                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2994                               class => "list"}, $par) .
2995                      "</td>" .
2996                      "<td class=\"link\">" .
2997                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2998                      " | " .
2999                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3000                      "</td>" .
3001                      "</tr>\n";
3002        }
3003        print "</table>".
3004              "</div>\n";
3005
3006        print "<div class=\"page_body\">\n";
3007        git_print_log($co{'comment'});
3008        print "</div>\n";
3009
3010        git_difftree_body(\@difftree, $hash, $parent);
3011
3012        git_footer_html();
3013}
3014
3015sub git_blobdiff {
3016        my $format = shift || 'html';
3017
3018        my $fd;
3019        my @difftree;
3020        my %diffinfo;
3021        my $expires;
3022
3023        # preparing $fd and %diffinfo for git_patchset_body
3024        # new style URI
3025        if (defined $hash_base && defined $hash_parent_base) {
3026                if (defined $file_name) {
3027                        # read raw output
3028                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3029                                "--", $file_name
3030                                or die_error(undef, "Open git-diff-tree failed");
3031                        @difftree = map { chomp; $_ } <$fd>;
3032                        close $fd
3033                                or die_error(undef, "Reading git-diff-tree failed");
3034                        @difftree
3035                                or die_error('404 Not Found', "Blob diff not found");
3036
3037                } elsif (defined $hash &&
3038                         $hash =~ /[0-9a-fA-F]{40}/) {
3039                        # try to find filename from $hash
3040
3041                        # read filtered raw output
3042                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3043                                or die_error(undef, "Open git-diff-tree failed");
3044                        @difftree =
3045                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3046                                # $hash == to_id
3047                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3048                                map { chomp; $_ } <$fd>;
3049                        close $fd
3050                                or die_error(undef, "Reading git-diff-tree failed");
3051                        @difftree
3052                                or die_error('404 Not Found', "Blob diff not found");
3053
3054                } else {
3055                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3056                }
3057
3058                if (@difftree > 1) {
3059                        die_error('404 Not Found', "Ambiguous blob diff specification");
3060                }
3061
3062                %diffinfo = parse_difftree_raw_line($difftree[0]);
3063                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3064                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3065
3066                $hash_parent ||= $diffinfo{'from_id'};
3067                $hash        ||= $diffinfo{'to_id'};
3068
3069                # non-textual hash id's can be cached
3070                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3071                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3072                        $expires = '+1d';
3073                }
3074
3075                # open patch output
3076                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3077                        '-p', $hash_parent_base, $hash_base,
3078                        "--", $file_name
3079                        or die_error(undef, "Open git-diff-tree failed");
3080        }
3081
3082        # old/legacy style URI
3083        if (!%diffinfo && # if new style URI failed
3084            defined $hash && defined $hash_parent) {
3085                # fake git-diff-tree raw output
3086                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3087                $diffinfo{'from_id'} = $hash_parent;
3088                $diffinfo{'to_id'}   = $hash;
3089                if (defined $file_name) {
3090                        if (defined $file_parent) {
3091                                $diffinfo{'status'} = '2';
3092                                $diffinfo{'from_file'} = $file_parent;
3093                                $diffinfo{'to_file'}   = $file_name;
3094                        } else { # assume not renamed
3095                                $diffinfo{'status'} = '1';
3096                                $diffinfo{'from_file'} = $file_name;
3097                                $diffinfo{'to_file'}   = $file_name;
3098                        }
3099                } else { # no filename given
3100                        $diffinfo{'status'} = '2';
3101                        $diffinfo{'from_file'} = $hash_parent;
3102                        $diffinfo{'to_file'}   = $hash;
3103                }
3104
3105                # non-textual hash id's can be cached
3106                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3107                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3108                        $expires = '+1d';
3109                }
3110
3111                # open patch output
3112                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3113                        or die_error(undef, "Open git-diff failed");
3114        } else  {
3115                die_error('404 Not Found', "Missing one of the blob diff parameters")
3116                        unless %diffinfo;
3117        }
3118
3119        # header
3120        if ($format eq 'html') {
3121                my $formats_nav =
3122                        $cgi->a({-href => href(action=>"blobdiff_plain",
3123                                               hash=>$hash, hash_parent=>$hash_parent,
3124                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3125                                               file_name=>$file_name, file_parent=>$file_parent)},
3126                                "raw");
3127                git_header_html(undef, $expires);
3128                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3129                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3130                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3131                } else {
3132                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3133                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3134                }
3135                if (defined $file_name) {
3136                        git_print_page_path($file_name, "blob", $hash_base);
3137                } else {
3138                        print "<div class=\"page_path\"></div>\n";
3139                }
3140
3141        } elsif ($format eq 'plain') {
3142                print $cgi->header(
3143                        -type => 'text/plain',
3144                        -charset => 'utf-8',
3145                        -expires => $expires,
3146                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3147
3148                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3149
3150        } else {
3151                die_error(undef, "Unknown blobdiff format");
3152        }
3153
3154        # patch
3155        if ($format eq 'html') {
3156                print "<div class=\"page_body\">\n";
3157
3158                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3159                close $fd;
3160
3161                print "</div>\n"; # class="page_body"
3162                git_footer_html();
3163
3164        } else {
3165                while (my $line = <$fd>) {
3166                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3167                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3168
3169                        print $line;
3170
3171                        last if $line =~ m!^\+\+\+!;
3172                }
3173                local $/ = undef;
3174                print <$fd>;
3175                close $fd;
3176        }
3177}
3178
3179sub git_blobdiff_plain {
3180        git_blobdiff('plain');
3181}
3182
3183sub git_commitdiff {
3184        my $format = shift || 'html';
3185        my %co = parse_commit($hash);
3186        if (!%co) {
3187                die_error(undef, "Unknown commit object");
3188        }
3189        if (!defined $hash_parent) {
3190                $hash_parent = $co{'parent'} || '--root';
3191        }
3192
3193        # read commitdiff
3194        my $fd;
3195        my @difftree;
3196        if ($format eq 'html') {
3197                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3198                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3199                        or die_error(undef, "Open git-diff-tree failed");
3200
3201                while (chomp(my $line = <$fd>)) {
3202                        # empty line ends raw part of diff-tree output
3203                        last unless $line;
3204                        push @difftree, $line;
3205                }
3206
3207        } elsif ($format eq 'plain') {
3208                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3209                        '-p', $hash_parent, $hash
3210                        or die_error(undef, "Open git-diff-tree failed");
3211
3212        } else {
3213                die_error(undef, "Unknown commitdiff format");
3214        }
3215
3216        # non-textual hash id's can be cached
3217        my $expires;
3218        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3219                $expires = "+1d";
3220        }
3221
3222        # write commit message
3223        if ($format eq 'html') {
3224                my $refs = git_get_references();
3225                my $ref = format_ref_marker($refs, $co{'id'});
3226                my $formats_nav =
3227                        $cgi->a({-href => href(action=>"commitdiff_plain",
3228                                               hash=>$hash, hash_parent=>$hash_parent)},
3229                                "raw");
3230
3231                git_header_html(undef, $expires);
3232                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3233                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3234                git_print_authorship(\%co);
3235                print "<div class=\"page_body\">\n";
3236                print "<div class=\"log\">\n";
3237                git_print_simplified_log($co{'comment'}, 1); # skip title
3238                print "</div>\n"; # class="log"
3239
3240        } elsif ($format eq 'plain') {
3241                my $refs = git_get_references("tags");
3242                my $tagname = git_get_rev_name_tags($hash);
3243                my $filename = basename($project) . "-$hash.patch";
3244
3245                print $cgi->header(
3246                        -type => 'text/plain',
3247                        -charset => 'utf-8',
3248                        -expires => $expires,
3249                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3250                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3251                print <<TEXT;
3252From: $co{'author'}
3253Date: $ad{'rfc2822'} ($ad{'tz_local'})
3254Subject: $co{'title'}
3255TEXT
3256                print "X-Git-Tag: $tagname\n" if $tagname;
3257                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3258
3259                foreach my $line (@{$co{'comment'}}) {
3260                        print "$line\n";
3261                }
3262                print "---\n\n";
3263        }
3264
3265        # write patch
3266        if ($format eq 'html') {
3267                git_difftree_body(\@difftree, $hash, $hash_parent);
3268                print "<br/>\n";
3269
3270                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3271                close $fd;
3272                print "</div>\n"; # class="page_body"
3273                git_footer_html();
3274
3275        } elsif ($format eq 'plain') {
3276                local $/ = undef;
3277                print <$fd>;
3278                close $fd
3279                        or print "Reading git-diff-tree failed\n";
3280        }
3281}
3282
3283sub git_commitdiff_plain {
3284        git_commitdiff('plain');
3285}
3286
3287sub git_history {
3288        if (!defined $hash_base) {
3289                $hash_base = git_get_head_hash($project);
3290        }
3291        if (!defined $page) {
3292                $page = 0;
3293        }
3294        my $ftype;
3295        my %co = parse_commit($hash_base);
3296        if (!%co) {
3297                die_error(undef, "Unknown commit object");
3298        }
3299
3300        my $refs = git_get_references();
3301        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3302
3303        if (!defined $hash && defined $file_name) {
3304                $hash = git_get_hash_by_path($hash_base, $file_name);
3305        }
3306        if (defined $hash) {
3307                $ftype = git_get_type($hash);
3308        }
3309
3310        open my $fd, "-|",
3311                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3312                        or die_error(undef, "Open git-rev-list-failed");
3313        my @revlist = map { chomp; $_ } <$fd>;
3314        close $fd
3315                or die_error(undef, "Reading git-rev-list failed");
3316
3317        my $paging_nav = '';
3318        if ($page > 0) {
3319                $paging_nav .=
3320                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3321                                               file_name=>$file_name)},
3322                                "first");
3323                $paging_nav .= " &sdot; " .
3324                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3325                                               file_name=>$file_name, page=>$page-1),
3326                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3327        } else {
3328                $paging_nav .= "first";
3329                $paging_nav .= " &sdot; prev";
3330        }
3331        if ($#revlist >= (100 * ($page+1)-1)) {
3332                $paging_nav .= " &sdot; " .
3333                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3334                                               file_name=>$file_name, page=>$page+1),
3335                                 -accesskey => "n", -title => "Alt-n"}, "next");
3336        } else {
3337                $paging_nav .= " &sdot; next";
3338        }
3339        my $next_link = '';
3340        if ($#revlist >= (100 * ($page+1)-1)) {
3341                $next_link =
3342                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3343                                               file_name=>$file_name, page=>$page+1),
3344                                 -title => "Alt-n"}, "next");
3345        }
3346
3347        git_header_html();
3348        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3349        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3350        git_print_page_path($file_name, $ftype, $hash_base);
3351
3352        git_history_body(\@revlist, ($page * 100), $#revlist,
3353                         $refs, $hash_base, $ftype, $next_link);
3354
3355        git_footer_html();
3356}
3357
3358sub git_search {
3359        if (!defined $searchtext) {
3360                die_error(undef, "Text field empty");
3361        }
3362        if (!defined $hash) {
3363                $hash = git_get_head_hash($project);
3364        }
3365        my %co = parse_commit($hash);
3366        if (!%co) {
3367                die_error(undef, "Unknown commit object");
3368        }
3369
3370        my $commit_search = 1;
3371        my $author_search = 0;
3372        my $committer_search = 0;
3373        my $pickaxe_search = 0;
3374        if ($searchtext =~ s/^author\\://i) {
3375                $author_search = 1;
3376        } elsif ($searchtext =~ s/^committer\\://i) {
3377                $committer_search = 1;
3378        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3379                $commit_search = 0;
3380                $pickaxe_search = 1;
3381
3382                # pickaxe may take all resources of your box and run for several minutes
3383                # with every query - so decide by yourself how public you make this feature
3384                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3385                if (!$have_pickaxe) {
3386                        die_error('403 Permission denied', "Permission denied");
3387                }
3388        }
3389        git_header_html();
3390        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3391        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3392
3393        print "<table cellspacing=\"0\">\n";
3394        my $alternate = 1;
3395        if ($commit_search) {
3396                $/ = "\0";
3397                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3398                while (my $commit_text = <$fd>) {
3399                        if (!grep m/$searchtext/i, $commit_text) {
3400                                next;
3401                        }
3402                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3403                                next;
3404                        }
3405                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3406                                next;
3407                        }
3408                        my @commit_lines = split "\n", $commit_text;
3409                        my %co = parse_commit(undef, \@commit_lines);
3410                        if (!%co) {
3411                                next;
3412                        }
3413                        if ($alternate) {
3414                                print "<tr class=\"dark\">\n";
3415                        } else {
3416                                print "<tr class=\"light\">\n";
3417                        }
3418                        $alternate ^= 1;
3419                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3420                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3421                              "<td>" .
3422                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3423                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3424                        my $comment = $co{'comment'};
3425                        foreach my $line (@$comment) {
3426                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3427                                        my $lead = esc_html($1) || "";
3428                                        $lead = chop_str($lead, 30, 10);
3429                                        my $match = esc_html($2) || "";
3430                                        my $trail = esc_html($3) || "";
3431                                        $trail = chop_str($trail, 30, 10);
3432                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3433                                        print chop_str($text, 80, 5) . "<br/>\n";
3434                                }
3435                        }
3436                        print "</td>\n" .
3437                              "<td class=\"link\">" .
3438                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3439                              " | " .
3440                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3441                        print "</td>\n" .
3442                              "</tr>\n";
3443                }
3444                close $fd;
3445        }
3446
3447        if ($pickaxe_search) {
3448                $/ = "\n";
3449                my $git_command = git_cmd_str();
3450                open my $fd, "-|", "$git_command rev-list $hash | " .
3451                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3452                undef %co;
3453                my @files;
3454                while (my $line = <$fd>) {
3455                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3456                                my %set;
3457                                $set{'file'} = $6;
3458                                $set{'from_id'} = $3;
3459                                $set{'to_id'} = $4;
3460                                $set{'id'} = $set{'to_id'};
3461                                if ($set{'id'} =~ m/0{40}/) {
3462                                        $set{'id'} = $set{'from_id'};
3463                                }
3464                                if ($set{'id'} =~ m/0{40}/) {
3465                                        next;
3466                                }
3467                                push @files, \%set;
3468                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3469                                if (%co) {
3470                                        if ($alternate) {
3471                                                print "<tr class=\"dark\">\n";
3472                                        } else {
3473                                                print "<tr class=\"light\">\n";
3474                                        }
3475                                        $alternate ^= 1;
3476                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3477                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3478                                              "<td>" .
3479                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3480                                                      -class => "list subject"},
3481                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3482                                        while (my $setref = shift @files) {
3483                                                my %set = %$setref;
3484                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3485                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3486                                                              -class => "list"},
3487                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3488                                                      "<br/>\n";
3489                                        }
3490                                        print "</td>\n" .
3491                                              "<td class=\"link\">" .
3492                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3493                                              " | " .
3494                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3495                                        print "</td>\n" .
3496                                              "</tr>\n";
3497                                }
3498                                %co = parse_commit($1);
3499                        }
3500                }
3501                close $fd;
3502        }
3503        print "</table>\n";
3504        git_footer_html();
3505}
3506
3507sub git_shortlog {
3508        my $head = git_get_head_hash($project);
3509        if (!defined $hash) {
3510                $hash = $head;
3511        }
3512        if (!defined $page) {
3513                $page = 0;
3514        }
3515        my $refs = git_get_references();
3516
3517        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3518        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3519                or die_error(undef, "Open git-rev-list failed");
3520        my @revlist = map { chomp; $_ } <$fd>;
3521        close $fd;
3522
3523        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3524        my $next_link = '';
3525        if ($#revlist >= (100 * ($page+1)-1)) {
3526                $next_link =
3527                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3528                                 -title => "Alt-n"}, "next");
3529        }
3530
3531
3532        git_header_html();
3533        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3534        git_print_header_div('summary', $project);
3535
3536        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3537
3538        git_footer_html();
3539}
3540
3541## ......................................................................
3542## feeds (RSS, OPML)
3543
3544sub git_rss {
3545        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3546        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3547                or die_error(undef, "Open git-rev-list failed");
3548        my @revlist = map { chomp; $_ } <$fd>;
3549        close $fd or die_error(undef, "Reading git-rev-list failed");
3550        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3551        print <<XML;
3552<?xml version="1.0" encoding="utf-8"?>
3553<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3554<channel>
3555<title>$project $my_uri $my_url</title>
3556<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3557<description>$project log</description>
3558<language>en</language>
3559XML
3560
3561        for (my $i = 0; $i <= $#revlist; $i++) {
3562                my $commit = $revlist[$i];
3563                my %co = parse_commit($commit);
3564                # we read 150, we always show 30 and the ones more recent than 48 hours
3565                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3566                        last;
3567                }
3568                my %cd = parse_date($co{'committer_epoch'});
3569                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3570                        $co{'parent'}, $co{'id'}
3571                        or next;
3572                my @difftree = map { chomp; $_ } <$fd>;
3573                close $fd
3574                        or next;
3575                print "<item>\n" .
3576                      "<title>" .
3577                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3578                      "</title>\n" .
3579                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3580                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3581                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3582                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3583                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3584                      "<content:encoded>" .
3585                      "<![CDATA[\n";
3586                my $comment = $co{'comment'};
3587                foreach my $line (@$comment) {
3588                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3589                        print "$line<br/>\n";
3590                }
3591                print "<br/>\n";
3592                foreach my $line (@difftree) {
3593                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3594                                next;
3595                        }
3596                        my $file = esc_html(unquote($7));
3597                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3598                        print "$file<br/>\n";
3599                }
3600                print "]]>\n" .
3601                      "</content:encoded>\n" .
3602                      "</item>\n";
3603        }
3604        print "</channel></rss>";
3605}
3606
3607sub git_opml {
3608        my @list = git_get_projects_list();
3609
3610        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3611        print <<XML;
3612<?xml version="1.0" encoding="utf-8"?>
3613<opml version="1.0">
3614<head>
3615  <title>$site_name Git OPML Export</title>
3616</head>
3617<body>
3618<outline text="git RSS feeds">
3619XML
3620
3621        foreach my $pr (@list) {
3622                my %proj = %$pr;
3623                my $head = git_get_head_hash($proj{'path'});
3624                if (!defined $head) {
3625                        next;
3626                }
3627                $git_dir = "$projectroot/$proj{'path'}";
3628                my %co = parse_commit($head);
3629                if (!%co) {
3630                        next;
3631                }
3632
3633                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3634                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3635                my $html = "$my_url?p=$proj{'path'};a=summary";
3636                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3637        }
3638        print <<XML;
3639</outline>
3640</body>
3641</opml>
3642XML
3643}