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 undef 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
 158# To enable system wide have in $GITWEB_CONFIG
 159# $feature{'pickaxe'}{'default'} = [1];
 160# To have project specific config enable override in $GITWEB_CONFIG
 161# $feature{'pickaxe'}{'override'} = 1;
 162# and in project config gitweb.pickaxe = 0|1;
 163
 164sub feature_pickaxe {
 165        my ($val) = git_get_project_config('pickaxe', '--bool');
 166
 167        if ($val eq 'true') {
 168                return (1);
 169        } elsif ($val eq 'false') {
 170                return (0);
 171        }
 172
 173        return ($_[0]);
 174}
 175
 176# rename detection options for git-diff and git-diff-tree
 177# - default is '-M', with the cost proportional to
 178#   (number of removed files) * (number of new files).
 179# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 180#   (number of changed files + number of removed files) * (number of new files)
 181# - even more costly is '-C', '--find-copies-harder' with cost
 182#   (number of files in the original tree) * (number of new files)
 183# - one might want to include '-B' option, e.g. '-B', '-M'
 184our @diff_opts = ('-M'); # taken from git_commit
 185
 186our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 187do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 188
 189# version of the core git binary
 190our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 191
 192$projects_list ||= $projectroot;
 193
 194# ======================================================================
 195# input validation and dispatch
 196our $action = $cgi->param('a');
 197if (defined $action) {
 198        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 199                die_error(undef, "Invalid action parameter");
 200        }
 201}
 202
 203our $project = $cgi->param('p');
 204if (defined $project) {
 205        if (!validate_input($project) ||
 206            !(-d "$projectroot/$project") ||
 207            !(-e "$projectroot/$project/HEAD") ||
 208            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 209            ($strict_export && !project_in_list($project))) {
 210                undef $project;
 211                die_error(undef, "No such project");
 212        }
 213}
 214
 215our $file_name = $cgi->param('f');
 216if (defined $file_name) {
 217        if (!validate_input($file_name)) {
 218                die_error(undef, "Invalid file parameter");
 219        }
 220}
 221
 222our $file_parent = $cgi->param('fp');
 223if (defined $file_parent) {
 224        if (!validate_input($file_parent)) {
 225                die_error(undef, "Invalid file parent parameter");
 226        }
 227}
 228
 229our $hash = $cgi->param('h');
 230if (defined $hash) {
 231        if (!validate_input($hash)) {
 232                die_error(undef, "Invalid hash parameter");
 233        }
 234}
 235
 236our $hash_parent = $cgi->param('hp');
 237if (defined $hash_parent) {
 238        if (!validate_input($hash_parent)) {
 239                die_error(undef, "Invalid hash parent parameter");
 240        }
 241}
 242
 243our $hash_base = $cgi->param('hb');
 244if (defined $hash_base) {
 245        if (!validate_input($hash_base)) {
 246                die_error(undef, "Invalid hash base parameter");
 247        }
 248}
 249
 250our $hash_parent_base = $cgi->param('hpb');
 251if (defined $hash_parent_base) {
 252        if (!validate_input($hash_parent_base)) {
 253                die_error(undef, "Invalid hash parent base parameter");
 254        }
 255}
 256
 257our $page = $cgi->param('pg');
 258if (defined $page) {
 259        if ($page =~ m/[^0-9]/) {
 260                die_error(undef, "Invalid page parameter");
 261        }
 262}
 263
 264our $searchtext = $cgi->param('s');
 265if (defined $searchtext) {
 266        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 267                die_error(undef, "Invalid search parameter");
 268        }
 269        $searchtext = quotemeta $searchtext;
 270}
 271
 272# now read PATH_INFO and use it as alternative to parameters
 273sub evaluate_path_info {
 274        return if defined $project;
 275        my $path_info = $ENV{"PATH_INFO"};
 276        return if !$path_info;
 277        $path_info =~ s,^/+,,;
 278        return if !$path_info;
 279        # find which part of PATH_INFO is project
 280        $project = $path_info;
 281        $project =~ s,/+$,,;
 282        while ($project && !-e "$projectroot/$project/HEAD") {
 283                $project =~ s,/*[^/]*$,,;
 284        }
 285        # validate project
 286        $project = validate_input($project);
 287        if (!$project ||
 288            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 289            ($strict_export && !project_in_list($project))) {
 290                undef $project;
 291                return;
 292        }
 293        # do not change any parameters if an action is given using the query string
 294        return if $action;
 295        $path_info =~ s,^$project/*,,;
 296        my ($refname, $pathname) = split(/:/, $path_info, 2);
 297        if (defined $pathname) {
 298                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 299                # we could use git_get_type(branch:pathname), but it needs $git_dir
 300                $pathname =~ s,^/+,,;
 301                if (!$pathname || substr($pathname, -1) eq "/") {
 302                        $action  ||= "tree";
 303                } else {
 304                        $action  ||= "blob_plain";
 305                }
 306                $hash_base ||= validate_input($refname);
 307                $file_name ||= validate_input($pathname);
 308        } elsif (defined $refname) {
 309                # we got "project.git/branch"
 310                $action ||= "shortlog";
 311                $hash   ||= validate_input($refname);
 312        }
 313}
 314evaluate_path_info();
 315
 316# path to the current git repository
 317our $git_dir;
 318$git_dir = "$projectroot/$project" if $project;
 319
 320# dispatch
 321my %actions = (
 322        "blame" => \&git_blame2,
 323        "blobdiff" => \&git_blobdiff,
 324        "blobdiff_plain" => \&git_blobdiff_plain,
 325        "blob" => \&git_blob,
 326        "blob_plain" => \&git_blob_plain,
 327        "commitdiff" => \&git_commitdiff,
 328        "commitdiff_plain" => \&git_commitdiff_plain,
 329        "commit" => \&git_commit,
 330        "heads" => \&git_heads,
 331        "history" => \&git_history,
 332        "log" => \&git_log,
 333        "rss" => \&git_rss,
 334        "search" => \&git_search,
 335        "shortlog" => \&git_shortlog,
 336        "summary" => \&git_summary,
 337        "tag" => \&git_tag,
 338        "tags" => \&git_tags,
 339        "tree" => \&git_tree,
 340        "snapshot" => \&git_snapshot,
 341        # those below don't need $project
 342        "opml" => \&git_opml,
 343        "project_list" => \&git_project_list,
 344        "project_index" => \&git_project_index,
 345);
 346
 347if (defined $project) {
 348        $action ||= 'summary';
 349} else {
 350        $action ||= 'project_list';
 351}
 352if (!defined($actions{$action})) {
 353        die_error(undef, "Unknown action");
 354}
 355$actions{$action}->();
 356exit;
 357
 358## ======================================================================
 359## action links
 360
 361sub href(%) {
 362        my %params = @_;
 363
 364        my @mapping = (
 365                project => "p",
 366                action => "a",
 367                file_name => "f",
 368                file_parent => "fp",
 369                hash => "h",
 370                hash_parent => "hp",
 371                hash_base => "hb",
 372                hash_parent_base => "hpb",
 373                page => "pg",
 374                order => "o",
 375                searchtext => "s",
 376        );
 377        my %mapping = @mapping;
 378
 379        $params{'project'} = $project unless exists $params{'project'};
 380
 381        my @result = ();
 382        for (my $i = 0; $i < @mapping; $i += 2) {
 383                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 384                if (defined $params{$name}) {
 385                        push @result, $symbol . "=" . esc_param($params{$name});
 386                }
 387        }
 388        return "$my_uri?" . join(';', @result);
 389}
 390
 391
 392## ======================================================================
 393## validation, quoting/unquoting and escaping
 394
 395sub validate_input {
 396        my $input = shift;
 397
 398        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 399                return $input;
 400        }
 401        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 402                return undef;
 403        }
 404        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 405                return undef;
 406        }
 407        return $input;
 408}
 409
 410# quote unsafe chars, but keep the slash, even when it's not
 411# correct, but quoted slashes look too horrible in bookmarks
 412sub esc_param {
 413        my $str = shift;
 414        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 415        $str =~ s/\+/%2B/g;
 416        $str =~ s/ /\+/g;
 417        return $str;
 418}
 419
 420# replace invalid utf8 character with SUBSTITUTION sequence
 421sub esc_html {
 422        my $str = shift;
 423        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 424        $str = escapeHTML($str);
 425        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 426        return $str;
 427}
 428
 429# git may return quoted and escaped filenames
 430sub unquote {
 431        my $str = shift;
 432        if ($str =~ m/^"(.*)"$/) {
 433                $str = $1;
 434                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 435        }
 436        return $str;
 437}
 438
 439# escape tabs (convert tabs to spaces)
 440sub untabify {
 441        my $line = shift;
 442
 443        while ((my $pos = index($line, "\t")) != -1) {
 444                if (my $count = (8 - ($pos % 8))) {
 445                        my $spaces = ' ' x $count;
 446                        $line =~ s/\t/$spaces/;
 447                }
 448        }
 449
 450        return $line;
 451}
 452
 453sub project_in_list {
 454        my $project = shift;
 455        my @list = git_get_projects_list();
 456        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 457}
 458
 459## ----------------------------------------------------------------------
 460## HTML aware string manipulation
 461
 462sub chop_str {
 463        my $str = shift;
 464        my $len = shift;
 465        my $add_len = shift || 10;
 466
 467        # allow only $len chars, but don't cut a word if it would fit in $add_len
 468        # if it doesn't fit, cut it if it's still longer than the dots we would add
 469        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 470        my $body = $1;
 471        my $tail = $2;
 472        if (length($tail) > 4) {
 473                $tail = " ...";
 474                $body =~ s/&[^;]*$//; # remove chopped character entities
 475        }
 476        return "$body$tail";
 477}
 478
 479## ----------------------------------------------------------------------
 480## functions returning short strings
 481
 482# CSS class for given age value (in seconds)
 483sub age_class {
 484        my $age = shift;
 485
 486        if ($age < 60*60*2) {
 487                return "age0";
 488        } elsif ($age < 60*60*24*2) {
 489                return "age1";
 490        } else {
 491                return "age2";
 492        }
 493}
 494
 495# convert age in seconds to "nn units ago" string
 496sub age_string {
 497        my $age = shift;
 498        my $age_str;
 499
 500        if ($age > 60*60*24*365*2) {
 501                $age_str = (int $age/60/60/24/365);
 502                $age_str .= " years ago";
 503        } elsif ($age > 60*60*24*(365/12)*2) {
 504                $age_str = int $age/60/60/24/(365/12);
 505                $age_str .= " months ago";
 506        } elsif ($age > 60*60*24*7*2) {
 507                $age_str = int $age/60/60/24/7;
 508                $age_str .= " weeks ago";
 509        } elsif ($age > 60*60*24*2) {
 510                $age_str = int $age/60/60/24;
 511                $age_str .= " days ago";
 512        } elsif ($age > 60*60*2) {
 513                $age_str = int $age/60/60;
 514                $age_str .= " hours ago";
 515        } elsif ($age > 60*2) {
 516                $age_str = int $age/60;
 517                $age_str .= " min ago";
 518        } elsif ($age > 2) {
 519                $age_str = int $age;
 520                $age_str .= " sec ago";
 521        } else {
 522                $age_str .= " right now";
 523        }
 524        return $age_str;
 525}
 526
 527# convert file mode in octal to symbolic file mode string
 528sub mode_str {
 529        my $mode = oct shift;
 530
 531        if (S_ISDIR($mode & S_IFMT)) {
 532                return 'drwxr-xr-x';
 533        } elsif (S_ISLNK($mode)) {
 534                return 'lrwxrwxrwx';
 535        } elsif (S_ISREG($mode)) {
 536                # git cares only about the executable bit
 537                if ($mode & S_IXUSR) {
 538                        return '-rwxr-xr-x';
 539                } else {
 540                        return '-rw-r--r--';
 541                };
 542        } else {
 543                return '----------';
 544        }
 545}
 546
 547# convert file mode in octal to file type string
 548sub file_type {
 549        my $mode = shift;
 550
 551        if ($mode !~ m/^[0-7]+$/) {
 552                return $mode;
 553        } else {
 554                $mode = oct $mode;
 555        }
 556
 557        if (S_ISDIR($mode & S_IFMT)) {
 558                return "directory";
 559        } elsif (S_ISLNK($mode)) {
 560                return "symlink";
 561        } elsif (S_ISREG($mode)) {
 562                return "file";
 563        } else {
 564                return "unknown";
 565        }
 566}
 567
 568## ----------------------------------------------------------------------
 569## functions returning short HTML fragments, or transforming HTML fragments
 570## which don't beling to other sections
 571
 572# format line of commit message or tag comment
 573sub format_log_line_html {
 574        my $line = shift;
 575
 576        $line = esc_html($line);
 577        $line =~ s/ /&nbsp;/g;
 578        if ($line =~ m/([0-9a-fA-F]{40})/) {
 579                my $hash_text = $1;
 580                if (git_get_type($hash_text) eq "commit") {
 581                        my $link =
 582                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 583                                        -class => "text"}, $hash_text);
 584                        $line =~ s/$hash_text/$link/;
 585                }
 586        }
 587        return $line;
 588}
 589
 590# format marker of refs pointing to given object
 591sub format_ref_marker {
 592        my ($refs, $id) = @_;
 593        my $markers = '';
 594
 595        if (defined $refs->{$id}) {
 596                foreach my $ref (@{$refs->{$id}}) {
 597                        my ($type, $name) = qw();
 598                        # e.g. tags/v2.6.11 or heads/next
 599                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 600                                $type = $1;
 601                                $name = $2;
 602                        } else {
 603                                $type = "ref";
 604                                $name = $ref;
 605                        }
 606
 607                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 608                }
 609        }
 610
 611        if ($markers) {
 612                return ' <span class="refs">'. $markers . '</span>';
 613        } else {
 614                return "";
 615        }
 616}
 617
 618# format, perhaps shortened and with markers, title line
 619sub format_subject_html {
 620        my ($long, $short, $href, $extra) = @_;
 621        $extra = '' unless defined($extra);
 622
 623        if (length($short) < length($long)) {
 624                return $cgi->a({-href => $href, -class => "list subject",
 625                                -title => $long},
 626                       esc_html($short) . $extra);
 627        } else {
 628                return $cgi->a({-href => $href, -class => "list subject"},
 629                       esc_html($long)  . $extra);
 630        }
 631}
 632
 633sub format_diff_line {
 634        my $line = shift;
 635        my $char = substr($line, 0, 1);
 636        my $diff_class = "";
 637
 638        chomp $line;
 639
 640        if ($char eq '+') {
 641                $diff_class = " add";
 642        } elsif ($char eq "-") {
 643                $diff_class = " rem";
 644        } elsif ($char eq "@") {
 645                $diff_class = " chunk_header";
 646        } elsif ($char eq "\\") {
 647                $diff_class = " incomplete";
 648        }
 649        $line = untabify($line);
 650        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 651}
 652
 653## ----------------------------------------------------------------------
 654## git utility subroutines, invoking git commands
 655
 656# returns path to the core git executable and the --git-dir parameter as list
 657sub git_cmd {
 658        return $GIT, '--git-dir='.$git_dir;
 659}
 660
 661# returns path to the core git executable and the --git-dir parameter as string
 662sub git_cmd_str {
 663        return join(' ', git_cmd());
 664}
 665
 666# get HEAD ref of given project as hash
 667sub git_get_head_hash {
 668        my $project = shift;
 669        my $o_git_dir = $git_dir;
 670        my $retval = undef;
 671        $git_dir = "$projectroot/$project";
 672        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 673                my $head = <$fd>;
 674                close $fd;
 675                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 676                        $retval = $1;
 677                }
 678        }
 679        if (defined $o_git_dir) {
 680                $git_dir = $o_git_dir;
 681        }
 682        return $retval;
 683}
 684
 685# get type of given object
 686sub git_get_type {
 687        my $hash = shift;
 688
 689        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 690        my $type = <$fd>;
 691        close $fd or return;
 692        chomp $type;
 693        return $type;
 694}
 695
 696sub git_get_project_config {
 697        my ($key, $type) = @_;
 698
 699        return unless ($key);
 700        $key =~ s/^gitweb\.//;
 701        return if ($key =~ m/\W/);
 702
 703        my @x = (git_cmd(), 'repo-config');
 704        if (defined $type) { push @x, $type; }
 705        push @x, "--get";
 706        push @x, "gitweb.$key";
 707        my $val = qx(@x);
 708        chomp $val;
 709        return ($val);
 710}
 711
 712# get hash of given path at given ref
 713sub git_get_hash_by_path {
 714        my $base = shift;
 715        my $path = shift || return undef;
 716
 717        my $tree = $base;
 718
 719        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 720                or die_error(undef, "Open git-ls-tree failed");
 721        my $line = <$fd>;
 722        close $fd or return undef;
 723
 724        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 725        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 726        return $3;
 727}
 728
 729## ......................................................................
 730## git utility functions, directly accessing git repository
 731
 732sub git_get_project_description {
 733        my $path = shift;
 734
 735        open my $fd, "$projectroot/$path/description" or return undef;
 736        my $descr = <$fd>;
 737        close $fd;
 738        chomp $descr;
 739        return $descr;
 740}
 741
 742sub git_get_project_url_list {
 743        my $path = shift;
 744
 745        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 746        my @git_project_url_list = map { chomp; $_ } <$fd>;
 747        close $fd;
 748
 749        return wantarray ? @git_project_url_list : \@git_project_url_list;
 750}
 751
 752sub git_get_projects_list {
 753        my @list;
 754
 755        if (-d $projects_list) {
 756                # search in directory
 757                my $dir = $projects_list;
 758                my $pfxlen = length("$dir");
 759
 760                File::Find::find({
 761                        follow_fast => 1, # follow symbolic links
 762                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 763                        wanted => sub {
 764                                # skip project-list toplevel, if we get it.
 765                                return if (m!^[/.]$!);
 766                                # only directories can be git repositories
 767                                return unless (-d $_);
 768
 769                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 770                                # we check related file in $projectroot
 771                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 772                                    -e "$projectroot/$subdir/$export_ok")) {
 773                                        push @list, { path => $subdir };
 774                                        $File::Find::prune = 1;
 775                                }
 776                        },
 777                }, "$dir");
 778
 779        } elsif (-f $projects_list) {
 780                # read from file(url-encoded):
 781                # 'git%2Fgit.git Linus+Torvalds'
 782                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 783                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 784                open my ($fd), $projects_list or return undef;
 785                while (my $line = <$fd>) {
 786                        chomp $line;
 787                        my ($path, $owner) = split ' ', $line;
 788                        $path = unescape($path);
 789                        $owner = unescape($owner);
 790                        if (!defined $path) {
 791                                next;
 792                        }
 793                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 794                            -e "$projectroot/$path/$export_ok")) {
 795                                my $pr = {
 796                                        path => $path,
 797                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 798                                };
 799                                push @list, $pr
 800                        }
 801                }
 802                close $fd;
 803        }
 804        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 805        return @list;
 806}
 807
 808sub git_get_project_owner {
 809        my $project = shift;
 810        my $owner;
 811
 812        return undef unless $project;
 813
 814        # read from file (url-encoded):
 815        # 'git%2Fgit.git Linus+Torvalds'
 816        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 817        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 818        if (-f $projects_list) {
 819                open (my $fd , $projects_list);
 820                while (my $line = <$fd>) {
 821                        chomp $line;
 822                        my ($pr, $ow) = split ' ', $line;
 823                        $pr = unescape($pr);
 824                        $ow = unescape($ow);
 825                        if ($pr eq $project) {
 826                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 827                                last;
 828                        }
 829                }
 830                close $fd;
 831        }
 832        if (!defined $owner) {
 833                $owner = get_file_owner("$projectroot/$project");
 834        }
 835
 836        return $owner;
 837}
 838
 839sub git_get_references {
 840        my $type = shift || "";
 841        my %refs;
 842        my $fd;
 843        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 844        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 845        if (-f "$projectroot/$project/info/refs") {
 846                open $fd, "$projectroot/$project/info/refs"
 847                        or return;
 848        } else {
 849                open $fd, "-|", git_cmd(), "ls-remote", "."
 850                        or return;
 851        }
 852
 853        while (my $line = <$fd>) {
 854                chomp $line;
 855                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 856                        if (defined $refs{$1}) {
 857                                push @{$refs{$1}}, $2;
 858                        } else {
 859                                $refs{$1} = [ $2 ];
 860                        }
 861                }
 862        }
 863        close $fd or return;
 864        return \%refs;
 865}
 866
 867sub git_get_rev_name_tags {
 868        my $hash = shift || return undef;
 869
 870        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 871                or return;
 872        my $name_rev = <$fd>;
 873        close $fd;
 874
 875        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 876                return $1;
 877        } else {
 878                # catches also '$hash undefined' output
 879                return undef;
 880        }
 881}
 882
 883## ----------------------------------------------------------------------
 884## parse to hash functions
 885
 886sub parse_date {
 887        my $epoch = shift;
 888        my $tz = shift || "-0000";
 889
 890        my %date;
 891        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 892        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 893        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 894        $date{'hour'} = $hour;
 895        $date{'minute'} = $min;
 896        $date{'mday'} = $mday;
 897        $date{'day'} = $days[$wday];
 898        $date{'month'} = $months[$mon];
 899        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 900                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 901        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 902                             $mday, $months[$mon], $hour ,$min;
 903
 904        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 905        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 906        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 907        $date{'hour_local'} = $hour;
 908        $date{'minute_local'} = $min;
 909        $date{'tz_local'} = $tz;
 910        return %date;
 911}
 912
 913sub parse_tag {
 914        my $tag_id = shift;
 915        my %tag;
 916        my @comment;
 917
 918        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 919        $tag{'id'} = $tag_id;
 920        while (my $line = <$fd>) {
 921                chomp $line;
 922                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 923                        $tag{'object'} = $1;
 924                } elsif ($line =~ m/^type (.+)$/) {
 925                        $tag{'type'} = $1;
 926                } elsif ($line =~ m/^tag (.+)$/) {
 927                        $tag{'name'} = $1;
 928                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 929                        $tag{'author'} = $1;
 930                        $tag{'epoch'} = $2;
 931                        $tag{'tz'} = $3;
 932                } elsif ($line =~ m/--BEGIN/) {
 933                        push @comment, $line;
 934                        last;
 935                } elsif ($line eq "") {
 936                        last;
 937                }
 938        }
 939        push @comment, <$fd>;
 940        $tag{'comment'} = \@comment;
 941        close $fd or return;
 942        if (!defined $tag{'name'}) {
 943                return
 944        };
 945        return %tag
 946}
 947
 948sub parse_commit {
 949        my $commit_id = shift;
 950        my $commit_text = shift;
 951
 952        my @commit_lines;
 953        my %co;
 954
 955        if (defined $commit_text) {
 956                @commit_lines = @$commit_text;
 957        } else {
 958                $/ = "\0";
 959                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 960                        or return;
 961                @commit_lines = split '\n', <$fd>;
 962                close $fd or return;
 963                $/ = "\n";
 964                pop @commit_lines;
 965        }
 966        my $header = shift @commit_lines;
 967        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 968                return;
 969        }
 970        ($co{'id'}, my @parents) = split ' ', $header;
 971        $co{'parents'} = \@parents;
 972        $co{'parent'} = $parents[0];
 973        while (my $line = shift @commit_lines) {
 974                last if $line eq "\n";
 975                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 976                        $co{'tree'} = $1;
 977                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 978                        $co{'author'} = $1;
 979                        $co{'author_epoch'} = $2;
 980                        $co{'author_tz'} = $3;
 981                        if ($co{'author'} =~ m/^([^<]+) </) {
 982                                $co{'author_name'} = $1;
 983                        } else {
 984                                $co{'author_name'} = $co{'author'};
 985                        }
 986                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 987                        $co{'committer'} = $1;
 988                        $co{'committer_epoch'} = $2;
 989                        $co{'committer_tz'} = $3;
 990                        $co{'committer_name'} = $co{'committer'};
 991                        $co{'committer_name'} =~ s/ <.*//;
 992                }
 993        }
 994        if (!defined $co{'tree'}) {
 995                return;
 996        };
 997
 998        foreach my $title (@commit_lines) {
 999                $title =~ s/^    //;
1000                if ($title ne "") {
1001                        $co{'title'} = chop_str($title, 80, 5);
1002                        # remove leading stuff of merges to make the interesting part visible
1003                        if (length($title) > 50) {
1004                                $title =~ s/^Automatic //;
1005                                $title =~ s/^merge (of|with) /Merge ... /i;
1006                                if (length($title) > 50) {
1007                                        $title =~ s/(http|rsync):\/\///;
1008                                }
1009                                if (length($title) > 50) {
1010                                        $title =~ s/(master|www|rsync)\.//;
1011                                }
1012                                if (length($title) > 50) {
1013                                        $title =~ s/kernel.org:?//;
1014                                }
1015                                if (length($title) > 50) {
1016                                        $title =~ s/\/pub\/scm//;
1017                                }
1018                        }
1019                        $co{'title_short'} = chop_str($title, 50, 5);
1020                        last;
1021                }
1022        }
1023        # remove added spaces
1024        foreach my $line (@commit_lines) {
1025                $line =~ s/^    //;
1026        }
1027        $co{'comment'} = \@commit_lines;
1028
1029        my $age = time - $co{'committer_epoch'};
1030        $co{'age'} = $age;
1031        $co{'age_string'} = age_string($age);
1032        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1033        if ($age > 60*60*24*7*2) {
1034                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1035                $co{'age_string_age'} = $co{'age_string'};
1036        } else {
1037                $co{'age_string_date'} = $co{'age_string'};
1038                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1039        }
1040        return %co;
1041}
1042
1043# parse ref from ref_file, given by ref_id, with given type
1044sub parse_ref {
1045        my $ref_file = shift;
1046        my $ref_id = shift;
1047        my $type = shift || git_get_type($ref_id);
1048        my %ref_item;
1049
1050        $ref_item{'type'} = $type;
1051        $ref_item{'id'} = $ref_id;
1052        $ref_item{'epoch'} = 0;
1053        $ref_item{'age'} = "unknown";
1054        if ($type eq "tag") {
1055                my %tag = parse_tag($ref_id);
1056                $ref_item{'comment'} = $tag{'comment'};
1057                if ($tag{'type'} eq "commit") {
1058                        my %co = parse_commit($tag{'object'});
1059                        $ref_item{'epoch'} = $co{'committer_epoch'};
1060                        $ref_item{'age'} = $co{'age_string'};
1061                } elsif (defined($tag{'epoch'})) {
1062                        my $age = time - $tag{'epoch'};
1063                        $ref_item{'epoch'} = $tag{'epoch'};
1064                        $ref_item{'age'} = age_string($age);
1065                }
1066                $ref_item{'reftype'} = $tag{'type'};
1067                $ref_item{'name'} = $tag{'name'};
1068                $ref_item{'refid'} = $tag{'object'};
1069        } elsif ($type eq "commit"){
1070                my %co = parse_commit($ref_id);
1071                $ref_item{'reftype'} = "commit";
1072                $ref_item{'name'} = $ref_file;
1073                $ref_item{'title'} = $co{'title'};
1074                $ref_item{'refid'} = $ref_id;
1075                $ref_item{'epoch'} = $co{'committer_epoch'};
1076                $ref_item{'age'} = $co{'age_string'};
1077        } else {
1078                $ref_item{'reftype'} = $type;
1079                $ref_item{'name'} = $ref_file;
1080                $ref_item{'refid'} = $ref_id;
1081        }
1082
1083        return %ref_item;
1084}
1085
1086# parse line of git-diff-tree "raw" output
1087sub parse_difftree_raw_line {
1088        my $line = shift;
1089        my %res;
1090
1091        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1092        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1093        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1094                $res{'from_mode'} = $1;
1095                $res{'to_mode'} = $2;
1096                $res{'from_id'} = $3;
1097                $res{'to_id'} = $4;
1098                $res{'status'} = $5;
1099                $res{'similarity'} = $6;
1100                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1101                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1102                } else {
1103                        $res{'file'} = unquote($7);
1104                }
1105        }
1106        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1107        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1108                $res{'commit'} = $1;
1109        }
1110
1111        return wantarray ? %res : \%res;
1112}
1113
1114# parse line of git-ls-tree output
1115sub parse_ls_tree_line ($;%) {
1116        my $line = shift;
1117        my %opts = @_;
1118        my %res;
1119
1120        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1121        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1122
1123        $res{'mode'} = $1;
1124        $res{'type'} = $2;
1125        $res{'hash'} = $3;
1126        if ($opts{'-z'}) {
1127                $res{'name'} = $4;
1128        } else {
1129                $res{'name'} = unquote($4);
1130        }
1131
1132        return wantarray ? %res : \%res;
1133}
1134
1135## ......................................................................
1136## parse to array of hashes functions
1137
1138sub git_get_refs_list {
1139        my $ref_dir = shift;
1140        my @reflist;
1141
1142        my @refs;
1143        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1144                or return;
1145        while (my $line = <$fd>) {
1146                chomp $line;
1147                if ($line =~ m/^([0-9a-fA-F]{40})\t$ref_dir\/?([^\^]+)$/) {
1148                        push @refs, { hash => $1, name => $2 };
1149                } elsif ($line =~ m/^[0-9a-fA-F]{40}\t$ref_dir\/?(.*)\^\{\}$/ &&
1150                         $1 eq $refs[-1]{'name'}) {
1151                        # most likely a tag is followed by its peeled
1152                        # (deref) one, and when that happens we know the
1153                        # previous one was of type 'tag'.
1154                        $refs[-1]{'type'} = "tag";
1155                }
1156        }
1157        close $fd;
1158
1159        foreach my $ref (@refs) {
1160                my $ref_file = $ref->{'name'};
1161                my $ref_id   = $ref->{'hash'};
1162
1163                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1164                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1165
1166                push @reflist, \%ref_item;
1167        }
1168        # sort refs by age
1169        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1170        return \@reflist;
1171}
1172
1173## ----------------------------------------------------------------------
1174## filesystem-related functions
1175
1176sub get_file_owner {
1177        my $path = shift;
1178
1179        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1180        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1181        if (!defined $gcos) {
1182                return undef;
1183        }
1184        my $owner = $gcos;
1185        $owner =~ s/[,;].*$//;
1186        return decode("utf8", $owner, Encode::FB_DEFAULT);
1187}
1188
1189## ......................................................................
1190## mimetype related functions
1191
1192sub mimetype_guess_file {
1193        my $filename = shift;
1194        my $mimemap = shift;
1195        -r $mimemap or return undef;
1196
1197        my %mimemap;
1198        open(MIME, $mimemap) or return undef;
1199        while (<MIME>) {
1200                next if m/^#/; # skip comments
1201                my ($mime, $exts) = split(/\t+/);
1202                if (defined $exts) {
1203                        my @exts = split(/\s+/, $exts);
1204                        foreach my $ext (@exts) {
1205                                $mimemap{$ext} = $mime;
1206                        }
1207                }
1208        }
1209        close(MIME);
1210
1211        $filename =~ /\.([^.]*)$/;
1212        return $mimemap{$1};
1213}
1214
1215sub mimetype_guess {
1216        my $filename = shift;
1217        my $mime;
1218        $filename =~ /\./ or return undef;
1219
1220        if ($mimetypes_file) {
1221                my $file = $mimetypes_file;
1222                if ($file !~ m!^/!) { # if it is relative path
1223                        # it is relative to project
1224                        $file = "$projectroot/$project/$file";
1225                }
1226                $mime = mimetype_guess_file($filename, $file);
1227        }
1228        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1229        return $mime;
1230}
1231
1232sub blob_mimetype {
1233        my $fd = shift;
1234        my $filename = shift;
1235
1236        if ($filename) {
1237                my $mime = mimetype_guess($filename);
1238                $mime and return $mime;
1239        }
1240
1241        # just in case
1242        return $default_blob_plain_mimetype unless $fd;
1243
1244        if (-T $fd) {
1245                return 'text/plain' .
1246                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1247        } elsif (! $filename) {
1248                return 'application/octet-stream';
1249        } elsif ($filename =~ m/\.png$/i) {
1250                return 'image/png';
1251        } elsif ($filename =~ m/\.gif$/i) {
1252                return 'image/gif';
1253        } elsif ($filename =~ m/\.jpe?g$/i) {
1254                return 'image/jpeg';
1255        } else {
1256                return 'application/octet-stream';
1257        }
1258}
1259
1260## ======================================================================
1261## functions printing HTML: header, footer, error page
1262
1263sub git_header_html {
1264        my $status = shift || "200 OK";
1265        my $expires = shift;
1266
1267        my $title = "$site_name git";
1268        if (defined $project) {
1269                $title .= " - $project";
1270                if (defined $action) {
1271                        $title .= "/$action";
1272                        if (defined $file_name) {
1273                                $title .= " - $file_name";
1274                                if ($action eq "tree" && $file_name !~ m|/$|) {
1275                                        $title .= "/";
1276                                }
1277                        }
1278                }
1279        }
1280        my $content_type;
1281        # require explicit support from the UA if we are to send the page as
1282        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1283        # we have to do this because MSIE sometimes globs '*/*', pretending to
1284        # support xhtml+xml but choking when it gets what it asked for.
1285        if (defined $cgi->http('HTTP_ACCEPT') &&
1286            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1287            $cgi->Accept('application/xhtml+xml') != 0) {
1288                $content_type = 'application/xhtml+xml';
1289        } else {
1290                $content_type = 'text/html';
1291        }
1292        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1293                           -status=> $status, -expires => $expires);
1294        print <<EOF;
1295<?xml version="1.0" encoding="utf-8"?>
1296<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1297<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1298<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1299<!-- git core binaries version $git_version -->
1300<head>
1301<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1302<meta name="generator" content="gitweb/$version git/$git_version"/>
1303<meta name="robots" content="index, nofollow"/>
1304<title>$title</title>
1305<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1306EOF
1307        if (defined $project) {
1308                printf('<link rel="alternate" title="%s log" '.
1309                       'href="%s" type="application/rss+xml"/>'."\n",
1310                       esc_param($project), href(action=>"rss"));
1311        } else {
1312                printf('<link rel="alternate" title="%s projects list" '.
1313                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1314                       $site_name, href(project=>undef, action=>"project_index"));
1315                printf('<link rel="alternate" title="%s projects logs" '.
1316                       'href="%s" type="text/x-opml"/>'."\n",
1317                       $site_name, href(project=>undef, action=>"opml"));
1318        }
1319        if (defined $favicon) {
1320                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1321        }
1322
1323        print "</head>\n" .
1324              "<body>\n" .
1325              "<div class=\"page_header\">\n" .
1326              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1327              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1328              "</a>\n";
1329        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1330        if (defined $project) {
1331                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1332                if (defined $action) {
1333                        print " / $action";
1334                }
1335                print "\n";
1336                if (!defined $searchtext) {
1337                        $searchtext = "";
1338                }
1339                my $search_hash;
1340                if (defined $hash_base) {
1341                        $search_hash = $hash_base;
1342                } elsif (defined $hash) {
1343                        $search_hash = $hash;
1344                } else {
1345                        $search_hash = "HEAD";
1346                }
1347                $cgi->param("a", "search");
1348                $cgi->param("h", $search_hash);
1349                print $cgi->startform(-method => "get", -action => $my_uri) .
1350                      "<div class=\"search\">\n" .
1351                      $cgi->hidden(-name => "p") . "\n" .
1352                      $cgi->hidden(-name => "a") . "\n" .
1353                      $cgi->hidden(-name => "h") . "\n" .
1354                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1355                      "</div>" .
1356                      $cgi->end_form() . "\n";
1357        }
1358        print "</div>\n";
1359}
1360
1361sub git_footer_html {
1362        print "<div class=\"page_footer\">\n";
1363        if (defined $project) {
1364                my $descr = git_get_project_description($project);
1365                if (defined $descr) {
1366                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1367                }
1368                print $cgi->a({-href => href(action=>"rss"),
1369                              -class => "rss_logo"}, "RSS") . "\n";
1370        } else {
1371                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1372                              -class => "rss_logo"}, "OPML") . " ";
1373                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1374                              -class => "rss_logo"}, "TXT") . "\n";
1375        }
1376        print "</div>\n" .
1377              "</body>\n" .
1378              "</html>";
1379}
1380
1381sub die_error {
1382        my $status = shift || "403 Forbidden";
1383        my $error = shift || "Malformed query, file missing or permission denied";
1384
1385        git_header_html($status);
1386        print <<EOF;
1387<div class="page_body">
1388<br /><br />
1389$status - $error
1390<br />
1391</div>
1392EOF
1393        git_footer_html();
1394        exit;
1395}
1396
1397## ----------------------------------------------------------------------
1398## functions printing or outputting HTML: navigation
1399
1400sub git_print_page_nav {
1401        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1402        $extra = '' if !defined $extra; # pager or formats
1403
1404        my @navs = qw(summary shortlog log commit commitdiff tree);
1405        if ($suppress) {
1406                @navs = grep { $_ ne $suppress } @navs;
1407        }
1408
1409        my %arg = map { $_ => {action=>$_} } @navs;
1410        if (defined $head) {
1411                for (qw(commit commitdiff)) {
1412                        $arg{$_}{hash} = $head;
1413                }
1414                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1415                        for (qw(shortlog log)) {
1416                                $arg{$_}{hash} = $head;
1417                        }
1418                }
1419        }
1420        $arg{tree}{hash} = $treehead if defined $treehead;
1421        $arg{tree}{hash_base} = $treebase if defined $treebase;
1422
1423        print "<div class=\"page_nav\">\n" .
1424                (join " | ",
1425                 map { $_ eq $current ?
1426                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1427                 } @navs);
1428        print "<br/>\n$extra<br/>\n" .
1429              "</div>\n";
1430}
1431
1432sub format_paging_nav {
1433        my ($action, $hash, $head, $page, $nrevs) = @_;
1434        my $paging_nav;
1435
1436
1437        if ($hash ne $head || $page) {
1438                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1439        } else {
1440                $paging_nav .= "HEAD";
1441        }
1442
1443        if ($page > 0) {
1444                $paging_nav .= " &sdot; " .
1445                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1446                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1447        } else {
1448                $paging_nav .= " &sdot; prev";
1449        }
1450
1451        if ($nrevs >= (100 * ($page+1)-1)) {
1452                $paging_nav .= " &sdot; " .
1453                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1454                                 -accesskey => "n", -title => "Alt-n"}, "next");
1455        } else {
1456                $paging_nav .= " &sdot; next";
1457        }
1458
1459        return $paging_nav;
1460}
1461
1462## ......................................................................
1463## functions printing or outputting HTML: div
1464
1465sub git_print_header_div {
1466        my ($action, $title, $hash, $hash_base) = @_;
1467        my %args = ();
1468
1469        $args{action} = $action;
1470        $args{hash} = $hash if $hash;
1471        $args{hash_base} = $hash_base if $hash_base;
1472
1473        print "<div class=\"header\">\n" .
1474              $cgi->a({-href => href(%args), -class => "title"},
1475              $title ? $title : $action) .
1476              "\n</div>\n";
1477}
1478
1479#sub git_print_authorship (\%) {
1480sub git_print_authorship {
1481        my $co = shift;
1482
1483        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1484        print "<div class=\"author_date\">" .
1485              esc_html($co->{'author_name'}) .
1486              " [$ad{'rfc2822'}";
1487        if ($ad{'hour_local'} < 6) {
1488                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1489                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1490        } else {
1491                printf(" (%02d:%02d %s)",
1492                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1493        }
1494        print "]</div>\n";
1495}
1496
1497sub git_print_page_path {
1498        my $name = shift;
1499        my $type = shift;
1500        my $hb = shift;
1501
1502        if (!defined $name) {
1503                print "<div class=\"page_path\">/</div>\n";
1504        } else {
1505                my @dirname = split '/', $name;
1506                my $basename = pop @dirname;
1507                my $fullname = '';
1508
1509                print "<div class=\"page_path\">";
1510                foreach my $dir (@dirname) {
1511                        $fullname .= $dir . '/';
1512                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1513                                                     hash_base=>$hb),
1514                                      -title => $fullname}, esc_html($dir));
1515                        print "/";
1516                }
1517                if (defined $type && $type eq 'blob') {
1518                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1519                                                     hash_base=>$hb),
1520                                      -title => $name}, esc_html($basename));
1521                } elsif (defined $type && $type eq 'tree') {
1522                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1523                                                     hash_base=>$hb),
1524                                      -title => $name}, esc_html($basename));
1525                        print "/";
1526                } else {
1527                        print esc_html($basename);
1528                }
1529                print "<br/></div>\n";
1530        }
1531}
1532
1533# sub git_print_log (\@;%) {
1534sub git_print_log ($;%) {
1535        my $log = shift;
1536        my %opts = @_;
1537
1538        if ($opts{'-remove_title'}) {
1539                # remove title, i.e. first line of log
1540                shift @$log;
1541        }
1542        # remove leading empty lines
1543        while (defined $log->[0] && $log->[0] eq "") {
1544                shift @$log;
1545        }
1546
1547        # print log
1548        my $signoff = 0;
1549        my $empty = 0;
1550        foreach my $line (@$log) {
1551                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1552                        $signoff = 1;
1553                        $empty = 0;
1554                        if (! $opts{'-remove_signoff'}) {
1555                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1556                                next;
1557                        } else {
1558                                # remove signoff lines
1559                                next;
1560                        }
1561                } else {
1562                        $signoff = 0;
1563                }
1564
1565                # print only one empty line
1566                # do not print empty line after signoff
1567                if ($line eq "") {
1568                        next if ($empty || $signoff);
1569                        $empty = 1;
1570                } else {
1571                        $empty = 0;
1572                }
1573
1574                print format_log_line_html($line) . "<br/>\n";
1575        }
1576
1577        if ($opts{'-final_empty_line'}) {
1578                # end with single empty line
1579                print "<br/>\n" unless $empty;
1580        }
1581}
1582
1583sub git_print_simplified_log {
1584        my $log = shift;
1585        my $remove_title = shift;
1586
1587        git_print_log($log,
1588                -final_empty_line=> 1,
1589                -remove_title => $remove_title);
1590}
1591
1592# print tree entry (row of git_tree), but without encompassing <tr> element
1593sub git_print_tree_entry {
1594        my ($t, $basedir, $hash_base, $have_blame) = @_;
1595
1596        my %base_key = ();
1597        $base_key{hash_base} = $hash_base if defined $hash_base;
1598
1599        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1600        if ($t->{'type'} eq "blob") {
1601                print "<td class=\"list\">" .
1602                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1603                                             file_name=>"$basedir$t->{'name'}", %base_key),
1604                              -class => "list"}, esc_html($t->{'name'})) .
1605                      "</td>\n" .
1606                      "<td class=\"link\">" .
1607                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1608                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1609                              "blob");
1610                if ($have_blame) {
1611                        print " | " .
1612                                $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1613                                                       file_name=>"$basedir$t->{'name'}", %base_key)},
1614                                        "blame");
1615                }
1616                if (defined $hash_base) {
1617                        print " | " .
1618                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1619                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1620                                      "history");
1621                }
1622                print " | " .
1623                      $cgi->a({-href => href(action=>"blob_plain",
1624                                             hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1625                              "raw") .
1626                      "</td>\n";
1627
1628        } elsif ($t->{'type'} eq "tree") {
1629                print "<td class=\"list\">" .
1630                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1631                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1632                              esc_html($t->{'name'})) .
1633                      "</td>\n" .
1634                      "<td class=\"link\">" .
1635                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1636                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1637                              "tree");
1638                if (defined $hash_base) {
1639                        print " | " .
1640                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1641                                                     file_name=>"$basedir$t->{'name'}")},
1642                                      "history");
1643                }
1644                print "</td>\n";
1645        }
1646}
1647
1648## ......................................................................
1649## functions printing large fragments of HTML
1650
1651sub git_difftree_body {
1652        my ($difftree, $hash, $parent) = @_;
1653
1654        print "<div class=\"list_head\">\n";
1655        if ($#{$difftree} > 10) {
1656                print(($#{$difftree} + 1) . " files changed:\n");
1657        }
1658        print "</div>\n";
1659
1660        print "<table class=\"diff_tree\">\n";
1661        my $alternate = 0;
1662        my $patchno = 0;
1663        foreach my $line (@{$difftree}) {
1664                my %diff = parse_difftree_raw_line($line);
1665
1666                if ($alternate) {
1667                        print "<tr class=\"dark\">\n";
1668                } else {
1669                        print "<tr class=\"light\">\n";
1670                }
1671                $alternate ^= 1;
1672
1673                my ($to_mode_oct, $to_mode_str, $to_file_type);
1674                my ($from_mode_oct, $from_mode_str, $from_file_type);
1675                if ($diff{'to_mode'} ne ('0' x 6)) {
1676                        $to_mode_oct = oct $diff{'to_mode'};
1677                        if (S_ISREG($to_mode_oct)) { # only for regular file
1678                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1679                        }
1680                        $to_file_type = file_type($diff{'to_mode'});
1681                }
1682                if ($diff{'from_mode'} ne ('0' x 6)) {
1683                        $from_mode_oct = oct $diff{'from_mode'};
1684                        if (S_ISREG($to_mode_oct)) { # only for regular file
1685                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1686                        }
1687                        $from_file_type = file_type($diff{'from_mode'});
1688                }
1689
1690                if ($diff{'status'} eq "A") { # created
1691                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1692                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1693                        $mode_chng   .= "]</span>";
1694                        print "<td>" .
1695                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1696                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1697                                      -class => "list"}, esc_html($diff{'file'})) .
1698                              "</td>\n" .
1699                              "<td>$mode_chng</td>\n" .
1700                              "<td class=\"link\">" .
1701                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1702                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1703                                      "blob");
1704                        if ($action eq 'commitdiff') {
1705                                # link to patch
1706                                $patchno++;
1707                                print " | " .
1708                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1709                        }
1710                        print "</td>\n";
1711
1712                } elsif ($diff{'status'} eq "D") { # deleted
1713                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1714                        print "<td>" .
1715                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1716                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1717                                       -class => "list"}, esc_html($diff{'file'})) .
1718                              "</td>\n" .
1719                              "<td>$mode_chng</td>\n" .
1720                              "<td class=\"link\">" .
1721                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1722                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1723                                      "blob") .
1724                              " | ";
1725                        if ($action eq 'commitdiff') {
1726                                # link to patch
1727                                $patchno++;
1728                                print " | " .
1729                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1730                        }
1731                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1732                                                     file_name=>$diff{'file'})},
1733                                      "history") .
1734                              "</td>\n";
1735
1736                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1737                        my $mode_chnge = "";
1738                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1739                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1740                                if ($from_file_type != $to_file_type) {
1741                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1742                                }
1743                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1744                                        if ($from_mode_str && $to_mode_str) {
1745                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1746                                        } elsif ($to_mode_str) {
1747                                                $mode_chnge .= " mode: $to_mode_str";
1748                                        }
1749                                }
1750                                $mode_chnge .= "]</span>\n";
1751                        }
1752                        print "<td>";
1753                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1754                                print $cgi->a({-href => href(action=>"blobdiff",
1755                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1756                                                             hash_base=>$hash, hash_parent_base=>$parent,
1757                                                             file_name=>$diff{'file'}),
1758                                              -class => "list"}, esc_html($diff{'file'}));
1759                        } else { # only mode changed
1760                                print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1761                                                             hash_base=>$hash, file_name=>$diff{'file'}),
1762                                              -class => "list"}, esc_html($diff{'file'}));
1763                        }
1764                        print "</td>\n" .
1765                              "<td>$mode_chnge</td>\n" .
1766                              "<td class=\"link\">" .
1767                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1768                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1769                                      "blob");
1770                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1771                                if ($action eq 'commitdiff') {
1772                                        # link to patch
1773                                        $patchno++;
1774                                        print " | " .
1775                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1776                                } else {
1777                                        print " | " .
1778                                                $cgi->a({-href => href(action=>"blobdiff",
1779                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1780                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1781                                                                       file_name=>$diff{'file'})},
1782                                                        "diff");
1783                                }
1784                        }
1785                        print " | " .
1786                                $cgi->a({-href => href(action=>"history",
1787                                                       hash_base=>$hash, file_name=>$diff{'file'})},
1788                                        "history");
1789                        print "</td>\n";
1790
1791                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1792                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1793                        my $nstatus = $status_name{$diff{'status'}};
1794                        my $mode_chng = "";
1795                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1796                                # mode also for directories, so we cannot use $to_mode_str
1797                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1798                        }
1799                        print "<td>" .
1800                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1801                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1802                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1803                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1804                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1805                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1806                                      -class => "list"}, esc_html($diff{'from_file'})) .
1807                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1808                              "<td class=\"link\">" .
1809                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1810                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1811                                      "blob");
1812                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1813                                if ($action eq 'commitdiff') {
1814                                        # link to patch
1815                                        $patchno++;
1816                                        print " | " .
1817                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1818                                } else {
1819                                        print " | " .
1820                                                $cgi->a({-href => href(action=>"blobdiff",
1821                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1822                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1823                                                                       file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1824                                                        "diff");
1825                                }
1826                        }
1827                        print "</td>\n";
1828
1829                } # we should not encounter Unmerged (U) or Unknown (X) status
1830                print "</tr>\n";
1831        }
1832        print "</table>\n";
1833}
1834
1835sub git_patchset_body {
1836        my ($fd, $difftree, $hash, $hash_parent) = @_;
1837
1838        my $patch_idx = 0;
1839        my $in_header = 0;
1840        my $patch_found = 0;
1841        my $diffinfo;
1842
1843        print "<div class=\"patchset\">\n";
1844
1845        LINE:
1846        while (my $patch_line = <$fd>) {
1847                chomp $patch_line;
1848
1849                if ($patch_line =~ m/^diff /) { # "git diff" header
1850                        # beginning of patch (in patchset)
1851                        if ($patch_found) {
1852                                # close previous patch
1853                                print "</div>\n"; # class="patch"
1854                        } else {
1855                                # first patch in patchset
1856                                $patch_found = 1;
1857                        }
1858                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1859
1860                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1861                                $diffinfo = $difftree->[$patch_idx];
1862                        } else {
1863                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1864                        }
1865                        $patch_idx++;
1866
1867                        # for now, no extended header, hence we skip empty patches
1868                        # companion to  next LINE if $in_header;
1869                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1870                                $in_header = 1;
1871                                next LINE;
1872                        }
1873
1874                        if ($diffinfo->{'status'} eq "A") { # added
1875                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1876                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1877                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1878                                              $diffinfo->{'to_id'}) . "(new)" .
1879                                      "</div>\n"; # class="diff_info"
1880
1881                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1882                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1883                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1884                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1885                                              $diffinfo->{'from_id'}) . "(deleted)" .
1886                                      "</div>\n"; # class="diff_info"
1887
1888                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1889                                 $diffinfo->{'status'} eq "C" || # copied
1890                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1891                                print "<div class=\"diff_info\">" .
1892                                      file_type($diffinfo->{'from_mode'}) . ":" .
1893                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1894                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1895                                              $diffinfo->{'from_id'}) .
1896                                      " -> " .
1897                                      file_type($diffinfo->{'to_mode'}) . ":" .
1898                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1899                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1900                                              $diffinfo->{'to_id'});
1901                                print "</div>\n"; # class="diff_info"
1902
1903                        } else { # modified, mode changed, ...
1904                                print "<div class=\"diff_info\">" .
1905                                      file_type($diffinfo->{'from_mode'}) . ":" .
1906                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1907                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1908                                              $diffinfo->{'from_id'}) .
1909                                      " -> " .
1910                                      file_type($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'});
1914                                print "</div>\n"; # class="diff_info"
1915                        }
1916
1917                        #print "<div class=\"diff extended_header\">\n";
1918                        $in_header = 1;
1919                        next LINE;
1920                } # start of patch in patchset
1921
1922
1923                if ($in_header && $patch_line =~ m/^---/) {
1924                        #print "</div>\n"; # class="diff extended_header"
1925                        $in_header = 0;
1926
1927                        my $file = $diffinfo->{'from_file'};
1928                        $file  ||= $diffinfo->{'file'};
1929                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1930                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1931                                        -class => "list"}, esc_html($file));
1932                        $patch_line =~ s|a/.*$|a/$file|g;
1933                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1934
1935                        $patch_line = <$fd>;
1936                        chomp $patch_line;
1937
1938                        #$patch_line =~ m/^+++/;
1939                        $file    = $diffinfo->{'to_file'};
1940                        $file  ||= $diffinfo->{'file'};
1941                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1942                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1943                                        -class => "list"}, esc_html($file));
1944                        $patch_line =~ s|b/.*|b/$file|g;
1945                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1946
1947                        next LINE;
1948                }
1949                next LINE if $in_header;
1950
1951                print format_diff_line($patch_line);
1952        }
1953        print "</div>\n" if $patch_found; # class="patch"
1954
1955        print "</div>\n"; # class="patchset"
1956}
1957
1958# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1959
1960sub git_shortlog_body {
1961        # uses global variable $project
1962        my ($revlist, $from, $to, $refs, $extra) = @_;
1963
1964        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1965        my $have_snapshot = (defined $ctype && defined $suffix);
1966
1967        $from = 0 unless defined $from;
1968        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1969
1970        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1971        my $alternate = 0;
1972        for (my $i = $from; $i <= $to; $i++) {
1973                my $commit = $revlist->[$i];
1974                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1975                my $ref = format_ref_marker($refs, $commit);
1976                my %co = parse_commit($commit);
1977                if ($alternate) {
1978                        print "<tr class=\"dark\">\n";
1979                } else {
1980                        print "<tr class=\"light\">\n";
1981                }
1982                $alternate ^= 1;
1983                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1984                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1985                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1986                      "<td>";
1987                print format_subject_html($co{'title'}, $co{'title_short'},
1988                                          href(action=>"commit", hash=>$commit), $ref);
1989                print "</td>\n" .
1990                      "<td class=\"link\">" .
1991                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1992                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1993                if ($have_snapshot) {
1994                        print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1995                }
1996                print "</td>\n" .
1997                      "</tr>\n";
1998        }
1999        if (defined $extra) {
2000                print "<tr>\n" .
2001                      "<td colspan=\"4\">$extra</td>\n" .
2002                      "</tr>\n";
2003        }
2004        print "</table>\n";
2005}
2006
2007sub git_history_body {
2008        # Warning: assumes constant type (blob or tree) during history
2009        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2010
2011        $from = 0 unless defined $from;
2012        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2013
2014        print "<table class=\"history\" cellspacing=\"0\">\n";
2015        my $alternate = 0;
2016        for (my $i = $from; $i <= $to; $i++) {
2017                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2018                        next;
2019                }
2020
2021                my $commit = $1;
2022                my %co = parse_commit($commit);
2023                if (!%co) {
2024                        next;
2025                }
2026
2027                my $ref = format_ref_marker($refs, $commit);
2028
2029                if ($alternate) {
2030                        print "<tr class=\"dark\">\n";
2031                } else {
2032                        print "<tr class=\"light\">\n";
2033                }
2034                $alternate ^= 1;
2035                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2036                      # shortlog uses      chop_str($co{'author_name'}, 10)
2037                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2038                      "<td>";
2039                # originally git_history used chop_str($co{'title'}, 50)
2040                print format_subject_html($co{'title'}, $co{'title_short'},
2041                                          href(action=>"commit", hash=>$commit), $ref);
2042                print "</td>\n" .
2043                      "<td class=\"link\">" .
2044                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2045                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2046                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2047
2048                if ($ftype eq 'blob') {
2049                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2050                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2051                        if (defined $blob_current && defined $blob_parent &&
2052                                        $blob_current ne $blob_parent) {
2053                                print " | " .
2054                                        $cgi->a({-href => href(action=>"blobdiff",
2055                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2056                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2057                                                               file_name=>$file_name)},
2058                                                "diff to current");
2059                        }
2060                }
2061                print "</td>\n" .
2062                      "</tr>\n";
2063        }
2064        if (defined $extra) {
2065                print "<tr>\n" .
2066                      "<td colspan=\"4\">$extra</td>\n" .
2067                      "</tr>\n";
2068        }
2069        print "</table>\n";
2070}
2071
2072sub git_tags_body {
2073        # uses global variable $project
2074        my ($taglist, $from, $to, $extra) = @_;
2075        $from = 0 unless defined $from;
2076        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2077
2078        print "<table class=\"tags\" cellspacing=\"0\">\n";
2079        my $alternate = 0;
2080        for (my $i = $from; $i <= $to; $i++) {
2081                my $entry = $taglist->[$i];
2082                my %tag = %$entry;
2083                my $comment_lines = $tag{'comment'};
2084                my $comment = shift @$comment_lines;
2085                my $comment_short;
2086                if (defined $comment) {
2087                        $comment_short = chop_str($comment, 30, 5);
2088                }
2089                if ($alternate) {
2090                        print "<tr class=\"dark\">\n";
2091                } else {
2092                        print "<tr class=\"light\">\n";
2093                }
2094                $alternate ^= 1;
2095                print "<td><i>$tag{'age'}</i></td>\n" .
2096                      "<td>" .
2097                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2098                               -class => "list name"}, esc_html($tag{'name'})) .
2099                      "</td>\n" .
2100                      "<td>";
2101                if (defined $comment) {
2102                        print format_subject_html($comment, $comment_short,
2103                                                  href(action=>"tag", hash=>$tag{'id'}));
2104                }
2105                print "</td>\n" .
2106                      "<td class=\"selflink\">";
2107                if ($tag{'type'} eq "tag") {
2108                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2109                } else {
2110                        print "&nbsp;";
2111                }
2112                print "</td>\n" .
2113                      "<td class=\"link\">" . " | " .
2114                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2115                if ($tag{'reftype'} eq "commit") {
2116                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2117                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2118                } elsif ($tag{'reftype'} eq "blob") {
2119                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2120                }
2121                print "</td>\n" .
2122                      "</tr>";
2123        }
2124        if (defined $extra) {
2125                print "<tr>\n" .
2126                      "<td colspan=\"5\">$extra</td>\n" .
2127                      "</tr>\n";
2128        }
2129        print "</table>\n";
2130}
2131
2132sub git_heads_body {
2133        # uses global variable $project
2134        my ($taglist, $head, $from, $to, $extra) = @_;
2135        $from = 0 unless defined $from;
2136        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2137
2138        print "<table class=\"heads\" cellspacing=\"0\">\n";
2139        my $alternate = 0;
2140        for (my $i = $from; $i <= $to; $i++) {
2141                my $entry = $taglist->[$i];
2142                my %tag = %$entry;
2143                my $curr = $tag{'id'} eq $head;
2144                if ($alternate) {
2145                        print "<tr class=\"dark\">\n";
2146                } else {
2147                        print "<tr class=\"light\">\n";
2148                }
2149                $alternate ^= 1;
2150                print "<td><i>$tag{'age'}</i></td>\n" .
2151                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2152                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2153                               -class => "list name"},esc_html($tag{'name'})) .
2154                      "</td>\n" .
2155                      "<td class=\"link\">" .
2156                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2157                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2158                      "</td>\n" .
2159                      "</tr>";
2160        }
2161        if (defined $extra) {
2162                print "<tr>\n" .
2163                      "<td colspan=\"3\">$extra</td>\n" .
2164                      "</tr>\n";
2165        }
2166        print "</table>\n";
2167}
2168
2169## ======================================================================
2170## ======================================================================
2171## actions
2172
2173sub git_project_list {
2174        my $order = $cgi->param('o');
2175        if (defined $order && $order !~ m/project|descr|owner|age/) {
2176                die_error(undef, "Unknown order parameter");
2177        }
2178
2179        my @list = git_get_projects_list();
2180        my @projects;
2181        if (!@list) {
2182                die_error(undef, "No projects found");
2183        }
2184        foreach my $pr (@list) {
2185                my $head = git_get_head_hash($pr->{'path'});
2186                if (!defined $head) {
2187                        next;
2188                }
2189                $git_dir = "$projectroot/$pr->{'path'}";
2190                my %co = parse_commit($head);
2191                if (!%co) {
2192                        next;
2193                }
2194                $pr->{'commit'} = \%co;
2195                if (!defined $pr->{'descr'}) {
2196                        my $descr = git_get_project_description($pr->{'path'}) || "";
2197                        $pr->{'descr'} = chop_str($descr, 25, 5);
2198                }
2199                if (!defined $pr->{'owner'}) {
2200                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2201                }
2202                push @projects, $pr;
2203        }
2204
2205        git_header_html();
2206        if (-f $home_text) {
2207                print "<div class=\"index_include\">\n";
2208                open (my $fd, $home_text);
2209                print <$fd>;
2210                close $fd;
2211                print "</div>\n";
2212        }
2213        print "<table class=\"project_list\">\n" .
2214              "<tr>\n";
2215        $order ||= "project";
2216        if ($order eq "project") {
2217                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2218                print "<th>Project</th>\n";
2219        } else {
2220                print "<th>" .
2221                      $cgi->a({-href => href(project=>undef, order=>'project'),
2222                               -class => "header"}, "Project") .
2223                      "</th>\n";
2224        }
2225        if ($order eq "descr") {
2226                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2227                print "<th>Description</th>\n";
2228        } else {
2229                print "<th>" .
2230                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2231                               -class => "header"}, "Description") .
2232                      "</th>\n";
2233        }
2234        if ($order eq "owner") {
2235                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2236                print "<th>Owner</th>\n";
2237        } else {
2238                print "<th>" .
2239                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2240                               -class => "header"}, "Owner") .
2241                      "</th>\n";
2242        }
2243        if ($order eq "age") {
2244                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2245                print "<th>Last Change</th>\n";
2246        } else {
2247                print "<th>" .
2248                      $cgi->a({-href => href(project=>undef, order=>'age'),
2249                               -class => "header"}, "Last Change") .
2250                      "</th>\n";
2251        }
2252        print "<th></th>\n" .
2253              "</tr>\n";
2254        my $alternate = 0;
2255        foreach my $pr (@projects) {
2256                if ($alternate) {
2257                        print "<tr class=\"dark\">\n";
2258                } else {
2259                        print "<tr class=\"light\">\n";
2260                }
2261                $alternate ^= 1;
2262                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2263                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2264                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2265                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2266                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2267                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2268                      "<td class=\"link\">" .
2269                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2270                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2271                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2272                      "</td>\n" .
2273                      "</tr>\n";
2274        }
2275        print "</table>\n";
2276        git_footer_html();
2277}
2278
2279sub git_project_index {
2280        my @projects = git_get_projects_list();
2281
2282        print $cgi->header(
2283                -type => 'text/plain',
2284                -charset => 'utf-8',
2285                -content_disposition => qq(inline; filename="index.aux"));
2286
2287        foreach my $pr (@projects) {
2288                if (!exists $pr->{'owner'}) {
2289                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2290                }
2291
2292                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2293                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2294                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2295                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2296                $path  =~ s/ /\+/g;
2297                $owner =~ s/ /\+/g;
2298
2299                print "$path $owner\n";
2300        }
2301}
2302
2303sub git_summary {
2304        my $descr = git_get_project_description($project) || "none";
2305        my $head = git_get_head_hash($project);
2306        my %co = parse_commit($head);
2307        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2308
2309        my $owner = git_get_project_owner($project);
2310
2311        my $refs = git_get_references();
2312        git_header_html();
2313        git_print_page_nav('summary','', $head);
2314
2315        print "<div class=\"title\">&nbsp;</div>\n";
2316        print "<table cellspacing=\"0\">\n" .
2317              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2318              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2319              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2320        # use per project git URL list in $projectroot/$project/cloneurl
2321        # or make project git URL from git base URL and project name
2322        my $url_tag = "URL";
2323        my @url_list = git_get_project_url_list($project);
2324        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2325        foreach my $git_url (@url_list) {
2326                next unless $git_url;
2327                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2328                $url_tag = "";
2329        }
2330        print "</table>\n";
2331
2332        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2333                git_get_head_hash($project)
2334                or die_error(undef, "Open git-rev-list failed");
2335        my @revlist = map { chomp; $_ } <$fd>;
2336        close $fd;
2337        git_print_header_div('shortlog');
2338        git_shortlog_body(\@revlist, 0, 15, $refs,
2339                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2340
2341        my $taglist = git_get_refs_list("refs/tags");
2342        if (defined @$taglist) {
2343                git_print_header_div('tags');
2344                git_tags_body($taglist, 0, 15,
2345                              $cgi->a({-href => href(action=>"tags")}, "..."));
2346        }
2347
2348        my $headlist = git_get_refs_list("refs/heads");
2349        if (defined @$headlist) {
2350                git_print_header_div('heads');
2351                git_heads_body($headlist, $head, 0, 15,
2352                               $cgi->a({-href => href(action=>"heads")}, "..."));
2353        }
2354
2355        git_footer_html();
2356}
2357
2358sub git_tag {
2359        my $head = git_get_head_hash($project);
2360        git_header_html();
2361        git_print_page_nav('','', $head,undef,$head);
2362        my %tag = parse_tag($hash);
2363        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2364        print "<div class=\"title_text\">\n" .
2365              "<table cellspacing=\"0\">\n" .
2366              "<tr>\n" .
2367              "<td>object</td>\n" .
2368              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2369                               $tag{'object'}) . "</td>\n" .
2370              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2371                                              $tag{'type'}) . "</td>\n" .
2372              "</tr>\n";
2373        if (defined($tag{'author'})) {
2374                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2375                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2376                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2377                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2378                        "</td></tr>\n";
2379        }
2380        print "</table>\n\n" .
2381              "</div>\n";
2382        print "<div class=\"page_body\">";
2383        my $comment = $tag{'comment'};
2384        foreach my $line (@$comment) {
2385                print esc_html($line) . "<br/>\n";
2386        }
2387        print "</div>\n";
2388        git_footer_html();
2389}
2390
2391sub git_blame2 {
2392        my $fd;
2393        my $ftype;
2394
2395        my ($have_blame) = gitweb_check_feature('blame');
2396        if (!$have_blame) {
2397                die_error('403 Permission denied', "Permission denied");
2398        }
2399        die_error('404 Not Found', "File name not defined") if (!$file_name);
2400        $hash_base ||= git_get_head_hash($project);
2401        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2402        my %co = parse_commit($hash_base)
2403                or die_error(undef, "Reading commit failed");
2404        if (!defined $hash) {
2405                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2406                        or die_error(undef, "Error looking up file");
2407        }
2408        $ftype = git_get_type($hash);
2409        if ($ftype !~ "blob") {
2410                die_error("400 Bad Request", "Object is not a blob");
2411        }
2412        open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2413                or die_error(undef, "Open git-blame failed");
2414        git_header_html();
2415        my $formats_nav =
2416                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2417                        "blob") .
2418                " | " .
2419                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2420                        "head");
2421        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2422        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2423        git_print_page_path($file_name, $ftype, $hash_base);
2424        my @rev_color = (qw(light2 dark2));
2425        my $num_colors = scalar(@rev_color);
2426        my $current_color = 0;
2427        my $last_rev;
2428        print <<HTML;
2429<div class="page_body">
2430<table class="blame">
2431<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2432HTML
2433        while (<$fd>) {
2434                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2435                my $full_rev = $1;
2436                my $rev = substr($full_rev, 0, 8);
2437                my $lineno = $2;
2438                my $data = $3;
2439
2440                if (!defined $last_rev) {
2441                        $last_rev = $full_rev;
2442                } elsif ($last_rev ne $full_rev) {
2443                        $last_rev = $full_rev;
2444                        $current_color = ++$current_color % $num_colors;
2445                }
2446                print "<tr class=\"$rev_color[$current_color]\">\n";
2447                print "<td class=\"sha1\">" .
2448                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2449                                esc_html($rev)) . "</td>\n";
2450                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2451                      esc_html($lineno) . "</a></td>\n";
2452                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2453                print "</tr>\n";
2454        }
2455        print "</table>\n";
2456        print "</div>";
2457        close $fd
2458                or print "Reading blob failed\n";
2459        git_footer_html();
2460}
2461
2462sub git_blame {
2463        my $fd;
2464
2465        my ($have_blame) = gitweb_check_feature('blame');
2466        if (!$have_blame) {
2467                die_error('403 Permission denied', "Permission denied");
2468        }
2469        die_error('404 Not Found', "File name not defined") if (!$file_name);
2470        $hash_base ||= git_get_head_hash($project);
2471        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2472        my %co = parse_commit($hash_base)
2473                or die_error(undef, "Reading commit failed");
2474        if (!defined $hash) {
2475                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2476                        or die_error(undef, "Error lookup file");
2477        }
2478        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2479                or die_error(undef, "Open git-annotate failed");
2480        git_header_html();
2481        my $formats_nav =
2482                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2483                        "blob") .
2484                " | " .
2485                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2486                        "head");
2487        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2488        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2489        git_print_page_path($file_name, 'blob', $hash_base);
2490        print "<div class=\"page_body\">\n";
2491        print <<HTML;
2492<table class="blame">
2493  <tr>
2494    <th>Commit</th>
2495    <th>Age</th>
2496    <th>Author</th>
2497    <th>Line</th>
2498    <th>Data</th>
2499  </tr>
2500HTML
2501        my @line_class = (qw(light dark));
2502        my $line_class_len = scalar (@line_class);
2503        my $line_class_num = $#line_class;
2504        while (my $line = <$fd>) {
2505                my $long_rev;
2506                my $short_rev;
2507                my $author;
2508                my $time;
2509                my $lineno;
2510                my $data;
2511                my $age;
2512                my $age_str;
2513                my $age_class;
2514
2515                chomp $line;
2516                $line_class_num = ($line_class_num + 1) % $line_class_len;
2517
2518                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2519                        $long_rev = $1;
2520                        $author   = $2;
2521                        $time     = $3;
2522                        $lineno   = $4;
2523                        $data     = $5;
2524                } else {
2525                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2526                        next;
2527                }
2528                $short_rev  = substr ($long_rev, 0, 8);
2529                $age        = time () - $time;
2530                $age_str    = age_string ($age);
2531                $age_str    =~ s/ /&nbsp;/g;
2532                $age_class  = age_class($age);
2533                $author     = esc_html ($author);
2534                $author     =~ s/ /&nbsp;/g;
2535
2536                $data = untabify($data);
2537                $data = esc_html ($data);
2538
2539                print <<HTML;
2540  <tr class="$line_class[$line_class_num]">
2541    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2542    <td class="$age_class">$age_str</td>
2543    <td>$author</td>
2544    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2545    <td class="pre">$data</td>
2546  </tr>
2547HTML
2548        } # while (my $line = <$fd>)
2549        print "</table>\n\n";
2550        close $fd
2551                or print "Reading blob failed.\n";
2552        print "</div>";
2553        git_footer_html();
2554}
2555
2556sub git_tags {
2557        my $head = git_get_head_hash($project);
2558        git_header_html();
2559        git_print_page_nav('','', $head,undef,$head);
2560        git_print_header_div('summary', $project);
2561
2562        my $taglist = git_get_refs_list("refs/tags");
2563        if (defined @$taglist) {
2564                git_tags_body($taglist);
2565        }
2566        git_footer_html();
2567}
2568
2569sub git_heads {
2570        my $head = git_get_head_hash($project);
2571        git_header_html();
2572        git_print_page_nav('','', $head,undef,$head);
2573        git_print_header_div('summary', $project);
2574
2575        my $taglist = git_get_refs_list("refs/heads");
2576        if (defined @$taglist) {
2577                git_heads_body($taglist, $head);
2578        }
2579        git_footer_html();
2580}
2581
2582sub git_blob_plain {
2583        my $expires;
2584
2585        if (!defined $hash) {
2586                if (defined $file_name) {
2587                        my $base = $hash_base || git_get_head_hash($project);
2588                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2589                                or die_error(undef, "Error lookup file");
2590                } else {
2591                        die_error(undef, "No file name defined");
2592                }
2593        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2594                # blobs defined by non-textual hash id's can be cached
2595                $expires = "+1d";
2596        }
2597
2598        my $type = shift;
2599        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2600                or die_error(undef, "Couldn't cat $file_name, $hash");
2601
2602        $type ||= blob_mimetype($fd, $file_name);
2603
2604        # save as filename, even when no $file_name is given
2605        my $save_as = "$hash";
2606        if (defined $file_name) {
2607                $save_as = $file_name;
2608        } elsif ($type =~ m/^text\//) {
2609                $save_as .= '.txt';
2610        }
2611
2612        print $cgi->header(
2613                -type => "$type",
2614                -expires=>$expires,
2615                -content_disposition => "inline; filename=\"$save_as\"");
2616        undef $/;
2617        binmode STDOUT, ':raw';
2618        print <$fd>;
2619        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2620        $/ = "\n";
2621        close $fd;
2622}
2623
2624sub git_blob {
2625        my $expires;
2626
2627        if (!defined $hash) {
2628                if (defined $file_name) {
2629                        my $base = $hash_base || git_get_head_hash($project);
2630                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2631                                or die_error(undef, "Error lookup file");
2632                } else {
2633                        die_error(undef, "No file name defined");
2634                }
2635        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2636                # blobs defined by non-textual hash id's can be cached
2637                $expires = "+1d";
2638        }
2639
2640        my ($have_blame) = gitweb_check_feature('blame');
2641        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2642                or die_error(undef, "Couldn't cat $file_name, $hash");
2643        my $mimetype = blob_mimetype($fd, $file_name);
2644        if ($mimetype !~ m/^text\//) {
2645                close $fd;
2646                return git_blob_plain($mimetype);
2647        }
2648        git_header_html(undef, $expires);
2649        my $formats_nav = '';
2650        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2651                if (defined $file_name) {
2652                        if ($have_blame) {
2653                                $formats_nav .=
2654                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2655                                                               hash=>$hash, file_name=>$file_name)},
2656                                                "blame") .
2657                                        " | ";
2658                        }
2659                        $formats_nav .=
2660                                $cgi->a({-href => href(action=>"blob_plain",
2661                                                       hash=>$hash, file_name=>$file_name)},
2662                                        "plain") .
2663                                " | " .
2664                                $cgi->a({-href => href(action=>"blob",
2665                                                       hash_base=>"HEAD", file_name=>$file_name)},
2666                                        "head");
2667                } else {
2668                        $formats_nav .=
2669                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2670                }
2671                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2672                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2673        } else {
2674                print "<div class=\"page_nav\">\n" .
2675                      "<br/><br/></div>\n" .
2676                      "<div class=\"title\">$hash</div>\n";
2677        }
2678        git_print_page_path($file_name, "blob", $hash_base);
2679        print "<div class=\"page_body\">\n";
2680        my $nr;
2681        while (my $line = <$fd>) {
2682                chomp $line;
2683                $nr++;
2684                $line = untabify($line);
2685                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2686                       $nr, $nr, $nr, esc_html($line);
2687        }
2688        close $fd
2689                or print "Reading blob failed.\n";
2690        print "</div>";
2691        git_footer_html();
2692}
2693
2694sub git_tree {
2695        if (!defined $hash) {
2696                $hash = git_get_head_hash($project);
2697                if (defined $file_name) {
2698                        my $base = $hash_base || $hash;
2699                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2700                }
2701                if (!defined $hash_base) {
2702                        $hash_base = $hash;
2703                }
2704        }
2705        $/ = "\0";
2706        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2707                or die_error(undef, "Open git-ls-tree failed");
2708        my @entries = map { chomp; $_ } <$fd>;
2709        close $fd or die_error(undef, "Reading tree failed");
2710        $/ = "\n";
2711
2712        my $refs = git_get_references();
2713        my $ref = format_ref_marker($refs, $hash_base);
2714        git_header_html();
2715        my $base = "";
2716        my ($have_blame) = gitweb_check_feature('blame');
2717        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2718                git_print_page_nav('tree','', $hash_base);
2719                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2720        } else {
2721                undef $hash_base;
2722                print "<div class=\"page_nav\">\n";
2723                print "<br/><br/></div>\n";
2724                print "<div class=\"title\">$hash</div>\n";
2725        }
2726        if (defined $file_name) {
2727                $base = esc_html("$file_name/");
2728        }
2729        git_print_page_path($file_name, 'tree', $hash_base);
2730        print "<div class=\"page_body\">\n";
2731        print "<table cellspacing=\"0\">\n";
2732        my $alternate = 0;
2733        foreach my $line (@entries) {
2734                my %t = parse_ls_tree_line($line, -z => 1);
2735
2736                if ($alternate) {
2737                        print "<tr class=\"dark\">\n";
2738                } else {
2739                        print "<tr class=\"light\">\n";
2740                }
2741                $alternate ^= 1;
2742
2743                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2744
2745                print "</tr>\n";
2746        }
2747        print "</table>\n" .
2748              "</div>";
2749        git_footer_html();
2750}
2751
2752sub git_snapshot {
2753
2754        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2755        my $have_snapshot = (defined $ctype && defined $suffix);
2756        if (!$have_snapshot) {
2757                die_error('403 Permission denied', "Permission denied");
2758        }
2759
2760        if (!defined $hash) {
2761                $hash = git_get_head_hash($project);
2762        }
2763
2764        my $filename = basename($project) . "-$hash.tar.$suffix";
2765
2766        print $cgi->header(-type => 'application/x-tar',
2767                           -content_encoding => $ctype,
2768                           -content_disposition => "inline; filename=\"$filename\"",
2769                           -status => '200 OK');
2770
2771        my $git_command = git_cmd_str();
2772        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2773                die_error(undef, "Execute git-tar-tree failed.");
2774        binmode STDOUT, ':raw';
2775        print <$fd>;
2776        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2777        close $fd;
2778
2779}
2780
2781sub git_log {
2782        my $head = git_get_head_hash($project);
2783        if (!defined $hash) {
2784                $hash = $head;
2785        }
2786        if (!defined $page) {
2787                $page = 0;
2788        }
2789        my $refs = git_get_references();
2790
2791        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2792        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2793                or die_error(undef, "Open git-rev-list failed");
2794        my @revlist = map { chomp; $_ } <$fd>;
2795        close $fd;
2796
2797        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2798
2799        git_header_html();
2800        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2801
2802        if (!@revlist) {
2803                my %co = parse_commit($hash);
2804
2805                git_print_header_div('summary', $project);
2806                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2807        }
2808        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2809                my $commit = $revlist[$i];
2810                my $ref = format_ref_marker($refs, $commit);
2811                my %co = parse_commit($commit);
2812                next if !%co;
2813                my %ad = parse_date($co{'author_epoch'});
2814                git_print_header_div('commit',
2815                               "<span class=\"age\">$co{'age_string'}</span>" .
2816                               esc_html($co{'title'}) . $ref,
2817                               $commit);
2818                print "<div class=\"title_text\">\n" .
2819                      "<div class=\"log_link\">\n" .
2820                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2821                      " | " .
2822                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2823                      "<br/>\n" .
2824                      "</div>\n" .
2825                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2826                      "</div>\n";
2827
2828                print "<div class=\"log_body\">\n";
2829                git_print_simplified_log($co{'comment'});
2830                print "</div>\n";
2831        }
2832        git_footer_html();
2833}
2834
2835sub git_commit {
2836        my %co = parse_commit($hash);
2837        if (!%co) {
2838                die_error(undef, "Unknown commit object");
2839        }
2840        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2841        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2842
2843        my $parent = $co{'parent'};
2844        if (!defined $parent) {
2845                $parent = "--root";
2846        }
2847        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2848                or die_error(undef, "Open git-diff-tree failed");
2849        my @difftree = map { chomp; $_ } <$fd>;
2850        close $fd or die_error(undef, "Reading git-diff-tree failed");
2851
2852        # non-textual hash id's can be cached
2853        my $expires;
2854        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2855                $expires = "+1d";
2856        }
2857        my $refs = git_get_references();
2858        my $ref = format_ref_marker($refs, $co{'id'});
2859
2860        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2861        my $have_snapshot = (defined $ctype && defined $suffix);
2862
2863        my $formats_nav = '';
2864        if (defined $file_name && defined $co{'parent'}) {
2865                my $parent = $co{'parent'};
2866                $formats_nav .=
2867                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2868                                "blame");
2869        }
2870        git_header_html(undef, $expires);
2871        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2872                           $hash, $co{'tree'}, $hash,
2873                           $formats_nav);
2874
2875        if (defined $co{'parent'}) {
2876                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2877        } else {
2878                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2879        }
2880        print "<div class=\"title_text\">\n" .
2881              "<table cellspacing=\"0\">\n";
2882        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2883              "<tr>" .
2884              "<td></td><td> $ad{'rfc2822'}";
2885        if ($ad{'hour_local'} < 6) {
2886                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2887                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2888        } else {
2889                printf(" (%02d:%02d %s)",
2890                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2891        }
2892        print "</td>" .
2893              "</tr>\n";
2894        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2895        print "<tr><td></td><td> $cd{'rfc2822'}" .
2896              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2897              "</td></tr>\n";
2898        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2899        print "<tr>" .
2900              "<td>tree</td>" .
2901              "<td class=\"sha1\">" .
2902              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2903                       class => "list"}, $co{'tree'}) .
2904              "</td>" .
2905              "<td class=\"link\">" .
2906              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2907                      "tree");
2908        if ($have_snapshot) {
2909                print " | " .
2910                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2911        }
2912        print "</td>" .
2913              "</tr>\n";
2914        my $parents = $co{'parents'};
2915        foreach my $par (@$parents) {
2916                print "<tr>" .
2917                      "<td>parent</td>" .
2918                      "<td class=\"sha1\">" .
2919                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2920                               class => "list"}, $par) .
2921                      "</td>" .
2922                      "<td class=\"link\">" .
2923                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2924                      " | " .
2925                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2926                      "</td>" .
2927                      "</tr>\n";
2928        }
2929        print "</table>".
2930              "</div>\n";
2931
2932        print "<div class=\"page_body\">\n";
2933        git_print_log($co{'comment'});
2934        print "</div>\n";
2935
2936        git_difftree_body(\@difftree, $hash, $parent);
2937
2938        git_footer_html();
2939}
2940
2941sub git_blobdiff {
2942        my $format = shift || 'html';
2943
2944        my $fd;
2945        my @difftree;
2946        my %diffinfo;
2947        my $expires;
2948
2949        # preparing $fd and %diffinfo for git_patchset_body
2950        # new style URI
2951        if (defined $hash_base && defined $hash_parent_base) {
2952                if (defined $file_name) {
2953                        # read raw output
2954                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2955                                "--", $file_name
2956                                or die_error(undef, "Open git-diff-tree failed");
2957                        @difftree = map { chomp; $_ } <$fd>;
2958                        close $fd
2959                                or die_error(undef, "Reading git-diff-tree failed");
2960                        @difftree
2961                                or die_error('404 Not Found', "Blob diff not found");
2962
2963                } elsif (defined $hash &&
2964                         $hash =~ /[0-9a-fA-F]{40}/) {
2965                        # try to find filename from $hash
2966
2967                        # read filtered raw output
2968                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2969                                or die_error(undef, "Open git-diff-tree failed");
2970                        @difftree =
2971                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2972                                # $hash == to_id
2973                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2974                                map { chomp; $_ } <$fd>;
2975                        close $fd
2976                                or die_error(undef, "Reading git-diff-tree failed");
2977                        @difftree
2978                                or die_error('404 Not Found', "Blob diff not found");
2979
2980                } else {
2981                        die_error('404 Not Found', "Missing one of the blob diff parameters");
2982                }
2983
2984                if (@difftree > 1) {
2985                        die_error('404 Not Found', "Ambiguous blob diff specification");
2986                }
2987
2988                %diffinfo = parse_difftree_raw_line($difftree[0]);
2989                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2990                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2991
2992                $hash_parent ||= $diffinfo{'from_id'};
2993                $hash        ||= $diffinfo{'to_id'};
2994
2995                # non-textual hash id's can be cached
2996                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2997                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2998                        $expires = '+1d';
2999                }
3000
3001                # open patch output
3002                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3003                        '-p', $hash_parent_base, $hash_base,
3004                        "--", $file_name
3005                        or die_error(undef, "Open git-diff-tree failed");
3006        }
3007
3008        # old/legacy style URI
3009        if (!%diffinfo && # if new style URI failed
3010            defined $hash && defined $hash_parent) {
3011                # fake git-diff-tree raw output
3012                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3013                $diffinfo{'from_id'} = $hash_parent;
3014                $diffinfo{'to_id'}   = $hash;
3015                if (defined $file_name) {
3016                        if (defined $file_parent) {
3017                                $diffinfo{'status'} = '2';
3018                                $diffinfo{'from_file'} = $file_parent;
3019                                $diffinfo{'to_file'}   = $file_name;
3020                        } else { # assume not renamed
3021                                $diffinfo{'status'} = '1';
3022                                $diffinfo{'from_file'} = $file_name;
3023                                $diffinfo{'to_file'}   = $file_name;
3024                        }
3025                } else { # no filename given
3026                        $diffinfo{'status'} = '2';
3027                        $diffinfo{'from_file'} = $hash_parent;
3028                        $diffinfo{'to_file'}   = $hash;
3029                }
3030
3031                # non-textual hash id's can be cached
3032                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3033                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3034                        $expires = '+1d';
3035                }
3036
3037                # open patch output
3038                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3039                        or die_error(undef, "Open git-diff failed");
3040        } else  {
3041                die_error('404 Not Found', "Missing one of the blob diff parameters")
3042                        unless %diffinfo;
3043        }
3044
3045        # header
3046        if ($format eq 'html') {
3047                my $formats_nav =
3048                        $cgi->a({-href => href(action=>"blobdiff_plain",
3049                                               hash=>$hash, hash_parent=>$hash_parent,
3050                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3051                                               file_name=>$file_name, file_parent=>$file_parent)},
3052                                "plain");
3053                git_header_html(undef, $expires);
3054                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3055                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3056                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3057                } else {
3058                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3059                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3060                }
3061                if (defined $file_name) {
3062                        git_print_page_path($file_name, "blob", $hash_base);
3063                } else {
3064                        print "<div class=\"page_path\"></div>\n";
3065                }
3066
3067        } elsif ($format eq 'plain') {
3068                print $cgi->header(
3069                        -type => 'text/plain',
3070                        -charset => 'utf-8',
3071                        -expires => $expires,
3072                        -content_disposition => qq(inline; filename="${file_name}.patch"));
3073
3074                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3075
3076        } else {
3077                die_error(undef, "Unknown blobdiff format");
3078        }
3079
3080        # patch
3081        if ($format eq 'html') {
3082                print "<div class=\"page_body\">\n";
3083
3084                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3085                close $fd;
3086
3087                print "</div>\n"; # class="page_body"
3088                git_footer_html();
3089
3090        } else {
3091                while (my $line = <$fd>) {
3092                        $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3093                        $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3094
3095                        print $line;
3096
3097                        last if $line =~ m!^\+\+\+!;
3098                }
3099                local $/ = undef;
3100                print <$fd>;
3101                close $fd;
3102        }
3103}
3104
3105sub git_blobdiff_plain {
3106        git_blobdiff('plain');
3107}
3108
3109sub git_commitdiff {
3110        my $format = shift || 'html';
3111        my %co = parse_commit($hash);
3112        if (!%co) {
3113                die_error(undef, "Unknown commit object");
3114        }
3115        if (!defined $hash_parent) {
3116                $hash_parent = $co{'parent'} || '--root';
3117        }
3118
3119        # read commitdiff
3120        my $fd;
3121        my @difftree;
3122        if ($format eq 'html') {
3123                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3124                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3125                        or die_error(undef, "Open git-diff-tree failed");
3126
3127                while (chomp(my $line = <$fd>)) {
3128                        # empty line ends raw part of diff-tree output
3129                        last unless $line;
3130                        push @difftree, $line;
3131                }
3132
3133        } elsif ($format eq 'plain') {
3134                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3135                        '-p', $hash_parent, $hash
3136                        or die_error(undef, "Open git-diff-tree failed");
3137
3138        } else {
3139                die_error(undef, "Unknown commitdiff format");
3140        }
3141
3142        # non-textual hash id's can be cached
3143        my $expires;
3144        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3145                $expires = "+1d";
3146        }
3147
3148        # write commit message
3149        if ($format eq 'html') {
3150                my $refs = git_get_references();
3151                my $ref = format_ref_marker($refs, $co{'id'});
3152                my $formats_nav =
3153                        $cgi->a({-href => href(action=>"commitdiff_plain",
3154                                               hash=>$hash, hash_parent=>$hash_parent)},
3155                                "plain");
3156
3157                git_header_html(undef, $expires);
3158                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3159                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3160                git_print_authorship(\%co);
3161                print "<div class=\"page_body\">\n";
3162                print "<div class=\"log\">\n";
3163                git_print_simplified_log($co{'comment'}, 1); # skip title
3164                print "</div>\n"; # class="log"
3165
3166        } elsif ($format eq 'plain') {
3167                my $refs = git_get_references("tags");
3168                my $tagname = git_get_rev_name_tags($hash);
3169                my $filename = basename($project) . "-$hash.patch";
3170
3171                print $cgi->header(
3172                        -type => 'text/plain',
3173                        -charset => 'utf-8',
3174                        -expires => $expires,
3175                        -content_disposition => qq(inline; filename="$filename"));
3176                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3177                print <<TEXT;
3178From: $co{'author'}
3179Date: $ad{'rfc2822'} ($ad{'tz_local'})
3180Subject: $co{'title'}
3181TEXT
3182                print "X-Git-Tag: $tagname\n" if $tagname;
3183                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3184
3185                foreach my $line (@{$co{'comment'}}) {
3186                        print "$line\n";
3187                }
3188                print "---\n\n";
3189        }
3190
3191        # write patch
3192        if ($format eq 'html') {
3193                git_difftree_body(\@difftree, $hash, $hash_parent);
3194                print "<br/>\n";
3195
3196                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3197                close $fd;
3198                print "</div>\n"; # class="page_body"
3199                git_footer_html();
3200
3201        } elsif ($format eq 'plain') {
3202                local $/ = undef;
3203                print <$fd>;
3204                close $fd
3205                        or print "Reading git-diff-tree failed\n";
3206        }
3207}
3208
3209sub git_commitdiff_plain {
3210        git_commitdiff('plain');
3211}
3212
3213sub git_history {
3214        if (!defined $hash_base) {
3215                $hash_base = git_get_head_hash($project);
3216        }
3217        if (!defined $page) {
3218                $page = 0;
3219        }
3220        my $ftype;
3221        my %co = parse_commit($hash_base);
3222        if (!%co) {
3223                die_error(undef, "Unknown commit object");
3224        }
3225
3226        my $refs = git_get_references();
3227        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3228
3229        if (!defined $hash && defined $file_name) {
3230                $hash = git_get_hash_by_path($hash_base, $file_name);
3231        }
3232        if (defined $hash) {
3233                $ftype = git_get_type($hash);
3234        }
3235
3236        open my $fd, "-|",
3237                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3238                        or die_error(undef, "Open git-rev-list-failed");
3239        my @revlist = map { chomp; $_ } <$fd>;
3240        close $fd
3241                or die_error(undef, "Reading git-rev-list failed");
3242
3243        my $paging_nav = '';
3244        if ($page > 0) {
3245                $paging_nav .=
3246                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3247                                               file_name=>$file_name)},
3248                                "first");
3249                $paging_nav .= " &sdot; " .
3250                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3251                                               file_name=>$file_name, page=>$page-1),
3252                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3253        } else {
3254                $paging_nav .= "first";
3255                $paging_nav .= " &sdot; prev";
3256        }
3257        if ($#revlist >= (100 * ($page+1)-1)) {
3258                $paging_nav .= " &sdot; " .
3259                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3260                                               file_name=>$file_name, page=>$page+1),
3261                                 -accesskey => "n", -title => "Alt-n"}, "next");
3262        } else {
3263                $paging_nav .= " &sdot; next";
3264        }
3265        my $next_link = '';
3266        if ($#revlist >= (100 * ($page+1)-1)) {
3267                $next_link =
3268                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3269                                               file_name=>$file_name, page=>$page+1),
3270                                 -title => "Alt-n"}, "next");
3271        }
3272
3273        git_header_html();
3274        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3275        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3276        git_print_page_path($file_name, $ftype, $hash_base);
3277
3278        git_history_body(\@revlist, ($page * 100), $#revlist,
3279                         $refs, $hash_base, $ftype, $next_link);
3280
3281        git_footer_html();
3282}
3283
3284sub git_search {
3285        if (!defined $searchtext) {
3286                die_error(undef, "Text field empty");
3287        }
3288        if (!defined $hash) {
3289                $hash = git_get_head_hash($project);
3290        }
3291        my %co = parse_commit($hash);
3292        if (!%co) {
3293                die_error(undef, "Unknown commit object");
3294        }
3295
3296        my $commit_search = 1;
3297        my $author_search = 0;
3298        my $committer_search = 0;
3299        my $pickaxe_search = 0;
3300        if ($searchtext =~ s/^author\\://i) {
3301                $author_search = 1;
3302        } elsif ($searchtext =~ s/^committer\\://i) {
3303                $committer_search = 1;
3304        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3305                $commit_search = 0;
3306                $pickaxe_search = 1;
3307
3308                # pickaxe may take all resources of your box and run for several minutes
3309                # with every query - so decide by yourself how public you make this feature
3310                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3311                if (!$have_pickaxe) {
3312                        die_error('403 Permission denied', "Permission denied");
3313                }
3314        }
3315        git_header_html();
3316        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3317        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3318
3319        print "<table cellspacing=\"0\">\n";
3320        my $alternate = 0;
3321        if ($commit_search) {
3322                $/ = "\0";
3323                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3324                while (my $commit_text = <$fd>) {
3325                        if (!grep m/$searchtext/i, $commit_text) {
3326                                next;
3327                        }
3328                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3329                                next;
3330                        }
3331                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3332                                next;
3333                        }
3334                        my @commit_lines = split "\n", $commit_text;
3335                        my %co = parse_commit(undef, \@commit_lines);
3336                        if (!%co) {
3337                                next;
3338                        }
3339                        if ($alternate) {
3340                                print "<tr class=\"dark\">\n";
3341                        } else {
3342                                print "<tr class=\"light\">\n";
3343                        }
3344                        $alternate ^= 1;
3345                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3346                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3347                              "<td>" .
3348                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3349                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3350                        my $comment = $co{'comment'};
3351                        foreach my $line (@$comment) {
3352                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3353                                        my $lead = esc_html($1) || "";
3354                                        $lead = chop_str($lead, 30, 10);
3355                                        my $match = esc_html($2) || "";
3356                                        my $trail = esc_html($3) || "";
3357                                        $trail = chop_str($trail, 30, 10);
3358                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3359                                        print chop_str($text, 80, 5) . "<br/>\n";
3360                                }
3361                        }
3362                        print "</td>\n" .
3363                              "<td class=\"link\">" .
3364                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3365                              " | " .
3366                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3367                        print "</td>\n" .
3368                              "</tr>\n";
3369                }
3370                close $fd;
3371        }
3372
3373        if ($pickaxe_search) {
3374                $/ = "\n";
3375                my $git_command = git_cmd_str();
3376                open my $fd, "-|", "$git_command rev-list $hash | " .
3377                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3378                undef %co;
3379                my @files;
3380                while (my $line = <$fd>) {
3381                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3382                                my %set;
3383                                $set{'file'} = $6;
3384                                $set{'from_id'} = $3;
3385                                $set{'to_id'} = $4;
3386                                $set{'id'} = $set{'to_id'};
3387                                if ($set{'id'} =~ m/0{40}/) {
3388                                        $set{'id'} = $set{'from_id'};
3389                                }
3390                                if ($set{'id'} =~ m/0{40}/) {
3391                                        next;
3392                                }
3393                                push @files, \%set;
3394                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3395                                if (%co) {
3396                                        if ($alternate) {
3397                                                print "<tr class=\"dark\">\n";
3398                                        } else {
3399                                                print "<tr class=\"light\">\n";
3400                                        }
3401                                        $alternate ^= 1;
3402                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3403                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3404                                              "<td>" .
3405                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3406                                                      -class => "list subject"},
3407                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3408                                        while (my $setref = shift @files) {
3409                                                my %set = %$setref;
3410                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3411                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3412                                                              -class => "list"},
3413                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3414                                                      "<br/>\n";
3415                                        }
3416                                        print "</td>\n" .
3417                                              "<td class=\"link\">" .
3418                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3419                                              " | " .
3420                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3421                                        print "</td>\n" .
3422                                              "</tr>\n";
3423                                }
3424                                %co = parse_commit($1);
3425                        }
3426                }
3427                close $fd;
3428        }
3429        print "</table>\n";
3430        git_footer_html();
3431}
3432
3433sub git_shortlog {
3434        my $head = git_get_head_hash($project);
3435        if (!defined $hash) {
3436                $hash = $head;
3437        }
3438        if (!defined $page) {
3439                $page = 0;
3440        }
3441        my $refs = git_get_references();
3442
3443        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3444        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3445                or die_error(undef, "Open git-rev-list failed");
3446        my @revlist = map { chomp; $_ } <$fd>;
3447        close $fd;
3448
3449        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3450        my $next_link = '';
3451        if ($#revlist >= (100 * ($page+1)-1)) {
3452                $next_link =
3453                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3454                                 -title => "Alt-n"}, "next");
3455        }
3456
3457
3458        git_header_html();
3459        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3460        git_print_header_div('summary', $project);
3461
3462        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3463
3464        git_footer_html();
3465}
3466
3467## ......................................................................
3468## feeds (RSS, OPML)
3469
3470sub git_rss {
3471        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3472        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3473                or die_error(undef, "Open git-rev-list failed");
3474        my @revlist = map { chomp; $_ } <$fd>;
3475        close $fd or die_error(undef, "Reading git-rev-list failed");
3476        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3477        print <<XML;
3478<?xml version="1.0" encoding="utf-8"?>
3479<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3480<channel>
3481<title>$project $my_uri $my_url</title>
3482<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3483<description>$project log</description>
3484<language>en</language>
3485XML
3486
3487        for (my $i = 0; $i <= $#revlist; $i++) {
3488                my $commit = $revlist[$i];
3489                my %co = parse_commit($commit);
3490                # we read 150, we always show 30 and the ones more recent than 48 hours
3491                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3492                        last;
3493                }
3494                my %cd = parse_date($co{'committer_epoch'});
3495                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3496                        $co{'parent'}, $co{'id'}
3497                        or next;
3498                my @difftree = map { chomp; $_ } <$fd>;
3499                close $fd
3500                        or next;
3501                print "<item>\n" .
3502                      "<title>" .
3503                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3504                      "</title>\n" .
3505                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3506                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3507                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3508                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3509                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3510                      "<content:encoded>" .
3511                      "<![CDATA[\n";
3512                my $comment = $co{'comment'};
3513                foreach my $line (@$comment) {
3514                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3515                        print "$line<br/>\n";
3516                }
3517                print "<br/>\n";
3518                foreach my $line (@difftree) {
3519                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3520                                next;
3521                        }
3522                        my $file = validate_input(unquote($7));
3523                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3524                        print "$file<br/>\n";
3525                }
3526                print "]]>\n" .
3527                      "</content:encoded>\n" .
3528                      "</item>\n";
3529        }
3530        print "</channel></rss>";
3531}
3532
3533sub git_opml {
3534        my @list = git_get_projects_list();
3535
3536        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3537        print <<XML;
3538<?xml version="1.0" encoding="utf-8"?>
3539<opml version="1.0">
3540<head>
3541  <title>$site_name Git OPML Export</title>
3542</head>
3543<body>
3544<outline text="git RSS feeds">
3545XML
3546
3547        foreach my $pr (@list) {
3548                my %proj = %$pr;
3549                my $head = git_get_head_hash($proj{'path'});
3550                if (!defined $head) {
3551                        next;
3552                }
3553                $git_dir = "$projectroot/$proj{'path'}";
3554                my %co = parse_commit($head);
3555                if (!%co) {
3556                        next;
3557                }
3558
3559                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3560                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3561                my $html = "$my_url?p=$proj{'path'};a=summary";
3562                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3563        }
3564        print <<XML;
3565</outline>
3566</body>
3567</opml>
3568XML
3569}