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        $path_info =~ s,(^/|/$),,gs;
 278        $path_info = validate_input($path_info);
 279        return if !$path_info;
 280        $project = $path_info;
 281        while ($project && !-e "$projectroot/$project/HEAD") {
 282                $project =~ s,/*[^/]*$,,;
 283        }
 284        if (!$project ||
 285            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 286            ($strict_export && !project_in_list($project))) {
 287                undef $project;
 288                return;
 289        }
 290        # do not change any parameters if an action is given using the query string
 291        return if $action;
 292        if ($path_info =~ m,^$project/([^/]+)/(.+)$,) {
 293                # we got "project.git/branch/filename"
 294                $action    ||= "blob_plain";
 295                $hash_base ||= validate_input($1);
 296                $file_name ||= validate_input($2);
 297        } elsif ($path_info =~ m,^$project/([^/]+)$,) {
 298                # we got "project.git/branch"
 299                $action ||= "shortlog";
 300                $hash   ||= validate_input($1);
 301        }
 302}
 303evaluate_path_info();
 304
 305# path to the current git repository
 306our $git_dir;
 307$git_dir = "$projectroot/$project" if $project;
 308
 309# dispatch
 310my %actions = (
 311        "blame" => \&git_blame2,
 312        "blobdiff" => \&git_blobdiff,
 313        "blobdiff_plain" => \&git_blobdiff_plain,
 314        "blob" => \&git_blob,
 315        "blob_plain" => \&git_blob_plain,
 316        "commitdiff" => \&git_commitdiff,
 317        "commitdiff_plain" => \&git_commitdiff_plain,
 318        "commit" => \&git_commit,
 319        "heads" => \&git_heads,
 320        "history" => \&git_history,
 321        "log" => \&git_log,
 322        "rss" => \&git_rss,
 323        "search" => \&git_search,
 324        "shortlog" => \&git_shortlog,
 325        "summary" => \&git_summary,
 326        "tag" => \&git_tag,
 327        "tags" => \&git_tags,
 328        "tree" => \&git_tree,
 329        "snapshot" => \&git_snapshot,
 330        # those below don't need $project
 331        "opml" => \&git_opml,
 332        "project_list" => \&git_project_list,
 333        "project_index" => \&git_project_index,
 334);
 335
 336if (defined $project) {
 337        $action ||= 'summary';
 338} else {
 339        $action ||= 'project_list';
 340}
 341if (!defined($actions{$action})) {
 342        die_error(undef, "Unknown action");
 343}
 344$actions{$action}->();
 345exit;
 346
 347## ======================================================================
 348## action links
 349
 350sub href(%) {
 351        my %params = @_;
 352
 353        my @mapping = (
 354                project => "p",
 355                action => "a",
 356                file_name => "f",
 357                file_parent => "fp",
 358                hash => "h",
 359                hash_parent => "hp",
 360                hash_base => "hb",
 361                hash_parent_base => "hpb",
 362                page => "pg",
 363                order => "o",
 364                searchtext => "s",
 365        );
 366        my %mapping = @mapping;
 367
 368        $params{'project'} = $project unless exists $params{'project'};
 369
 370        my @result = ();
 371        for (my $i = 0; $i < @mapping; $i += 2) {
 372                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 373                if (defined $params{$name}) {
 374                        push @result, $symbol . "=" . esc_param($params{$name});
 375                }
 376        }
 377        return "$my_uri?" . join(';', @result);
 378}
 379
 380
 381## ======================================================================
 382## validation, quoting/unquoting and escaping
 383
 384sub validate_input {
 385        my $input = shift;
 386
 387        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 388                return $input;
 389        }
 390        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 391                return undef;
 392        }
 393        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 394                return undef;
 395        }
 396        return $input;
 397}
 398
 399# quote unsafe chars, but keep the slash, even when it's not
 400# correct, but quoted slashes look too horrible in bookmarks
 401sub esc_param {
 402        my $str = shift;
 403        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 404        $str =~ s/\+/%2B/g;
 405        $str =~ s/ /\+/g;
 406        return $str;
 407}
 408
 409# replace invalid utf8 character with SUBSTITUTION sequence
 410sub esc_html {
 411        my $str = shift;
 412        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 413        $str = escapeHTML($str);
 414        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 415        return $str;
 416}
 417
 418# git may return quoted and escaped filenames
 419sub unquote {
 420        my $str = shift;
 421        if ($str =~ m/^"(.*)"$/) {
 422                $str = $1;
 423                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 424        }
 425        return $str;
 426}
 427
 428# escape tabs (convert tabs to spaces)
 429sub untabify {
 430        my $line = shift;
 431
 432        while ((my $pos = index($line, "\t")) != -1) {
 433                if (my $count = (8 - ($pos % 8))) {
 434                        my $spaces = ' ' x $count;
 435                        $line =~ s/\t/$spaces/;
 436                }
 437        }
 438
 439        return $line;
 440}
 441
 442sub project_in_list {
 443        my $project = shift;
 444        my @list = git_get_projects_list();
 445        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 446}
 447
 448## ----------------------------------------------------------------------
 449## HTML aware string manipulation
 450
 451sub chop_str {
 452        my $str = shift;
 453        my $len = shift;
 454        my $add_len = shift || 10;
 455
 456        # allow only $len chars, but don't cut a word if it would fit in $add_len
 457        # if it doesn't fit, cut it if it's still longer than the dots we would add
 458        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 459        my $body = $1;
 460        my $tail = $2;
 461        if (length($tail) > 4) {
 462                $tail = " ...";
 463                $body =~ s/&[^;]*$//; # remove chopped character entities
 464        }
 465        return "$body$tail";
 466}
 467
 468## ----------------------------------------------------------------------
 469## functions returning short strings
 470
 471# CSS class for given age value (in seconds)
 472sub age_class {
 473        my $age = shift;
 474
 475        if ($age < 60*60*2) {
 476                return "age0";
 477        } elsif ($age < 60*60*24*2) {
 478                return "age1";
 479        } else {
 480                return "age2";
 481        }
 482}
 483
 484# convert age in seconds to "nn units ago" string
 485sub age_string {
 486        my $age = shift;
 487        my $age_str;
 488
 489        if ($age > 60*60*24*365*2) {
 490                $age_str = (int $age/60/60/24/365);
 491                $age_str .= " years ago";
 492        } elsif ($age > 60*60*24*(365/12)*2) {
 493                $age_str = int $age/60/60/24/(365/12);
 494                $age_str .= " months ago";
 495        } elsif ($age > 60*60*24*7*2) {
 496                $age_str = int $age/60/60/24/7;
 497                $age_str .= " weeks ago";
 498        } elsif ($age > 60*60*24*2) {
 499                $age_str = int $age/60/60/24;
 500                $age_str .= " days ago";
 501        } elsif ($age > 60*60*2) {
 502                $age_str = int $age/60/60;
 503                $age_str .= " hours ago";
 504        } elsif ($age > 60*2) {
 505                $age_str = int $age/60;
 506                $age_str .= " min ago";
 507        } elsif ($age > 2) {
 508                $age_str = int $age;
 509                $age_str .= " sec ago";
 510        } else {
 511                $age_str .= " right now";
 512        }
 513        return $age_str;
 514}
 515
 516# convert file mode in octal to symbolic file mode string
 517sub mode_str {
 518        my $mode = oct shift;
 519
 520        if (S_ISDIR($mode & S_IFMT)) {
 521                return 'drwxr-xr-x';
 522        } elsif (S_ISLNK($mode)) {
 523                return 'lrwxrwxrwx';
 524        } elsif (S_ISREG($mode)) {
 525                # git cares only about the executable bit
 526                if ($mode & S_IXUSR) {
 527                        return '-rwxr-xr-x';
 528                } else {
 529                        return '-rw-r--r--';
 530                };
 531        } else {
 532                return '----------';
 533        }
 534}
 535
 536# convert file mode in octal to file type string
 537sub file_type {
 538        my $mode = shift;
 539
 540        if ($mode !~ m/^[0-7]+$/) {
 541                return $mode;
 542        } else {
 543                $mode = oct $mode;
 544        }
 545
 546        if (S_ISDIR($mode & S_IFMT)) {
 547                return "directory";
 548        } elsif (S_ISLNK($mode)) {
 549                return "symlink";
 550        } elsif (S_ISREG($mode)) {
 551                return "file";
 552        } else {
 553                return "unknown";
 554        }
 555}
 556
 557## ----------------------------------------------------------------------
 558## functions returning short HTML fragments, or transforming HTML fragments
 559## which don't beling to other sections
 560
 561# format line of commit message or tag comment
 562sub format_log_line_html {
 563        my $line = shift;
 564
 565        $line = esc_html($line);
 566        $line =~ s/ /&nbsp;/g;
 567        if ($line =~ m/([0-9a-fA-F]{40})/) {
 568                my $hash_text = $1;
 569                if (git_get_type($hash_text) eq "commit") {
 570                        my $link =
 571                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 572                                        -class => "text"}, $hash_text);
 573                        $line =~ s/$hash_text/$link/;
 574                }
 575        }
 576        return $line;
 577}
 578
 579# format marker of refs pointing to given object
 580sub format_ref_marker {
 581        my ($refs, $id) = @_;
 582        my $markers = '';
 583
 584        if (defined $refs->{$id}) {
 585                foreach my $ref (@{$refs->{$id}}) {
 586                        my ($type, $name) = qw();
 587                        # e.g. tags/v2.6.11 or heads/next
 588                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 589                                $type = $1;
 590                                $name = $2;
 591                        } else {
 592                                $type = "ref";
 593                                $name = $ref;
 594                        }
 595
 596                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 597                }
 598        }
 599
 600        if ($markers) {
 601                return ' <span class="refs">'. $markers . '</span>';
 602        } else {
 603                return "";
 604        }
 605}
 606
 607# format, perhaps shortened and with markers, title line
 608sub format_subject_html {
 609        my ($long, $short, $href, $extra) = @_;
 610        $extra = '' unless defined($extra);
 611
 612        if (length($short) < length($long)) {
 613                return $cgi->a({-href => $href, -class => "list subject",
 614                                -title => $long},
 615                       esc_html($short) . $extra);
 616        } else {
 617                return $cgi->a({-href => $href, -class => "list subject"},
 618                       esc_html($long)  . $extra);
 619        }
 620}
 621
 622sub format_diff_line {
 623        my $line = shift;
 624        my $char = substr($line, 0, 1);
 625        my $diff_class = "";
 626
 627        chomp $line;
 628
 629        if ($char eq '+') {
 630                $diff_class = " add";
 631        } elsif ($char eq "-") {
 632                $diff_class = " rem";
 633        } elsif ($char eq "@") {
 634                $diff_class = " chunk_header";
 635        } elsif ($char eq "\\") {
 636                $diff_class = " incomplete";
 637        }
 638        $line = untabify($line);
 639        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 640}
 641
 642## ----------------------------------------------------------------------
 643## git utility subroutines, invoking git commands
 644
 645# returns path to the core git executable and the --git-dir parameter as list
 646sub git_cmd {
 647        return $GIT, '--git-dir='.$git_dir;
 648}
 649
 650# returns path to the core git executable and the --git-dir parameter as string
 651sub git_cmd_str {
 652        return join(' ', git_cmd());
 653}
 654
 655# get HEAD ref of given project as hash
 656sub git_get_head_hash {
 657        my $project = shift;
 658        my $o_git_dir = $git_dir;
 659        my $retval = undef;
 660        $git_dir = "$projectroot/$project";
 661        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 662                my $head = <$fd>;
 663                close $fd;
 664                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 665                        $retval = $1;
 666                }
 667        }
 668        if (defined $o_git_dir) {
 669                $git_dir = $o_git_dir;
 670        }
 671        return $retval;
 672}
 673
 674# get type of given object
 675sub git_get_type {
 676        my $hash = shift;
 677
 678        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 679        my $type = <$fd>;
 680        close $fd or return;
 681        chomp $type;
 682        return $type;
 683}
 684
 685sub git_get_project_config {
 686        my ($key, $type) = @_;
 687
 688        return unless ($key);
 689        $key =~ s/^gitweb\.//;
 690        return if ($key =~ m/\W/);
 691
 692        my @x = (git_cmd(), 'repo-config');
 693        if (defined $type) { push @x, $type; }
 694        push @x, "--get";
 695        push @x, "gitweb.$key";
 696        my $val = qx(@x);
 697        chomp $val;
 698        return ($val);
 699}
 700
 701# get hash of given path at given ref
 702sub git_get_hash_by_path {
 703        my $base = shift;
 704        my $path = shift || return undef;
 705
 706        my $tree = $base;
 707
 708        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 709                or die_error(undef, "Open git-ls-tree failed");
 710        my $line = <$fd>;
 711        close $fd or return undef;
 712
 713        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 714        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 715        return $3;
 716}
 717
 718## ......................................................................
 719## git utility functions, directly accessing git repository
 720
 721sub git_get_project_description {
 722        my $path = shift;
 723
 724        open my $fd, "$projectroot/$path/description" or return undef;
 725        my $descr = <$fd>;
 726        close $fd;
 727        chomp $descr;
 728        return $descr;
 729}
 730
 731sub git_get_project_url_list {
 732        my $path = shift;
 733
 734        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 735        my @git_project_url_list = map { chomp; $_ } <$fd>;
 736        close $fd;
 737
 738        return wantarray ? @git_project_url_list : \@git_project_url_list;
 739}
 740
 741sub git_get_projects_list {
 742        my @list;
 743
 744        if (-d $projects_list) {
 745                # search in directory
 746                my $dir = $projects_list;
 747                my $pfxlen = length("$dir");
 748
 749                File::Find::find({
 750                        follow_fast => 1, # follow symbolic links
 751                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 752                        wanted => sub {
 753                                # skip project-list toplevel, if we get it.
 754                                return if (m!^[/.]$!);
 755                                # only directories can be git repositories
 756                                return unless (-d $_);
 757
 758                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 759                                # we check related file in $projectroot
 760                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 761                                    -e "$projectroot/$subdir/$export_ok")) {
 762                                        push @list, { path => $subdir };
 763                                        $File::Find::prune = 1;
 764                                }
 765                        },
 766                }, "$dir");
 767
 768        } elsif (-f $projects_list) {
 769                # read from file(url-encoded):
 770                # 'git%2Fgit.git Linus+Torvalds'
 771                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 772                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 773                open my ($fd), $projects_list or return undef;
 774                while (my $line = <$fd>) {
 775                        chomp $line;
 776                        my ($path, $owner) = split ' ', $line;
 777                        $path = unescape($path);
 778                        $owner = unescape($owner);
 779                        if (!defined $path) {
 780                                next;
 781                        }
 782                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 783                            -e "$projectroot/$path/$export_ok")) {
 784                                my $pr = {
 785                                        path => $path,
 786                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 787                                };
 788                                push @list, $pr
 789                        }
 790                }
 791                close $fd;
 792        }
 793        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 794        return @list;
 795}
 796
 797sub git_get_project_owner {
 798        my $project = shift;
 799        my $owner;
 800
 801        return undef unless $project;
 802
 803        # read from file (url-encoded):
 804        # 'git%2Fgit.git Linus+Torvalds'
 805        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 806        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 807        if (-f $projects_list) {
 808                open (my $fd , $projects_list);
 809                while (my $line = <$fd>) {
 810                        chomp $line;
 811                        my ($pr, $ow) = split ' ', $line;
 812                        $pr = unescape($pr);
 813                        $ow = unescape($ow);
 814                        if ($pr eq $project) {
 815                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 816                                last;
 817                        }
 818                }
 819                close $fd;
 820        }
 821        if (!defined $owner) {
 822                $owner = get_file_owner("$projectroot/$project");
 823        }
 824
 825        return $owner;
 826}
 827
 828sub git_get_references {
 829        my $type = shift || "";
 830        my %refs;
 831        my $fd;
 832        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 833        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 834        if (-f "$projectroot/$project/info/refs") {
 835                open $fd, "$projectroot/$project/info/refs"
 836                        or return;
 837        } else {
 838                open $fd, "-|", git_cmd(), "ls-remote", "."
 839                        or return;
 840        }
 841
 842        while (my $line = <$fd>) {
 843                chomp $line;
 844                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 845                        if (defined $refs{$1}) {
 846                                push @{$refs{$1}}, $2;
 847                        } else {
 848                                $refs{$1} = [ $2 ];
 849                        }
 850                }
 851        }
 852        close $fd or return;
 853        return \%refs;
 854}
 855
 856sub git_get_rev_name_tags {
 857        my $hash = shift || return undef;
 858
 859        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 860                or return;
 861        my $name_rev = <$fd>;
 862        close $fd;
 863
 864        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 865                return $1;
 866        } else {
 867                # catches also '$hash undefined' output
 868                return undef;
 869        }
 870}
 871
 872## ----------------------------------------------------------------------
 873## parse to hash functions
 874
 875sub parse_date {
 876        my $epoch = shift;
 877        my $tz = shift || "-0000";
 878
 879        my %date;
 880        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 881        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 882        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 883        $date{'hour'} = $hour;
 884        $date{'minute'} = $min;
 885        $date{'mday'} = $mday;
 886        $date{'day'} = $days[$wday];
 887        $date{'month'} = $months[$mon];
 888        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 889                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 890        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 891                             $mday, $months[$mon], $hour ,$min;
 892
 893        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 894        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 895        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 896        $date{'hour_local'} = $hour;
 897        $date{'minute_local'} = $min;
 898        $date{'tz_local'} = $tz;
 899        return %date;
 900}
 901
 902sub parse_tag {
 903        my $tag_id = shift;
 904        my %tag;
 905        my @comment;
 906
 907        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 908        $tag{'id'} = $tag_id;
 909        while (my $line = <$fd>) {
 910                chomp $line;
 911                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 912                        $tag{'object'} = $1;
 913                } elsif ($line =~ m/^type (.+)$/) {
 914                        $tag{'type'} = $1;
 915                } elsif ($line =~ m/^tag (.+)$/) {
 916                        $tag{'name'} = $1;
 917                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 918                        $tag{'author'} = $1;
 919                        $tag{'epoch'} = $2;
 920                        $tag{'tz'} = $3;
 921                } elsif ($line =~ m/--BEGIN/) {
 922                        push @comment, $line;
 923                        last;
 924                } elsif ($line eq "") {
 925                        last;
 926                }
 927        }
 928        push @comment, <$fd>;
 929        $tag{'comment'} = \@comment;
 930        close $fd or return;
 931        if (!defined $tag{'name'}) {
 932                return
 933        };
 934        return %tag
 935}
 936
 937sub parse_commit {
 938        my $commit_id = shift;
 939        my $commit_text = shift;
 940
 941        my @commit_lines;
 942        my %co;
 943
 944        if (defined $commit_text) {
 945                @commit_lines = @$commit_text;
 946        } else {
 947                $/ = "\0";
 948                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 949                        or return;
 950                @commit_lines = split '\n', <$fd>;
 951                close $fd or return;
 952                $/ = "\n";
 953                pop @commit_lines;
 954        }
 955        my $header = shift @commit_lines;
 956        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 957                return;
 958        }
 959        ($co{'id'}, my @parents) = split ' ', $header;
 960        $co{'parents'} = \@parents;
 961        $co{'parent'} = $parents[0];
 962        while (my $line = shift @commit_lines) {
 963                last if $line eq "\n";
 964                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 965                        $co{'tree'} = $1;
 966                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 967                        $co{'author'} = $1;
 968                        $co{'author_epoch'} = $2;
 969                        $co{'author_tz'} = $3;
 970                        if ($co{'author'} =~ m/^([^<]+) </) {
 971                                $co{'author_name'} = $1;
 972                        } else {
 973                                $co{'author_name'} = $co{'author'};
 974                        }
 975                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 976                        $co{'committer'} = $1;
 977                        $co{'committer_epoch'} = $2;
 978                        $co{'committer_tz'} = $3;
 979                        $co{'committer_name'} = $co{'committer'};
 980                        $co{'committer_name'} =~ s/ <.*//;
 981                }
 982        }
 983        if (!defined $co{'tree'}) {
 984                return;
 985        };
 986
 987        foreach my $title (@commit_lines) {
 988                $title =~ s/^    //;
 989                if ($title ne "") {
 990                        $co{'title'} = chop_str($title, 80, 5);
 991                        # remove leading stuff of merges to make the interesting part visible
 992                        if (length($title) > 50) {
 993                                $title =~ s/^Automatic //;
 994                                $title =~ s/^merge (of|with) /Merge ... /i;
 995                                if (length($title) > 50) {
 996                                        $title =~ s/(http|rsync):\/\///;
 997                                }
 998                                if (length($title) > 50) {
 999                                        $title =~ s/(master|www|rsync)\.//;
1000                                }
1001                                if (length($title) > 50) {
1002                                        $title =~ s/kernel.org:?//;
1003                                }
1004                                if (length($title) > 50) {
1005                                        $title =~ s/\/pub\/scm//;
1006                                }
1007                        }
1008                        $co{'title_short'} = chop_str($title, 50, 5);
1009                        last;
1010                }
1011        }
1012        # remove added spaces
1013        foreach my $line (@commit_lines) {
1014                $line =~ s/^    //;
1015        }
1016        $co{'comment'} = \@commit_lines;
1017
1018        my $age = time - $co{'committer_epoch'};
1019        $co{'age'} = $age;
1020        $co{'age_string'} = age_string($age);
1021        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1022        if ($age > 60*60*24*7*2) {
1023                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1024                $co{'age_string_age'} = $co{'age_string'};
1025        } else {
1026                $co{'age_string_date'} = $co{'age_string'};
1027                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1028        }
1029        return %co;
1030}
1031
1032# parse ref from ref_file, given by ref_id, with given type
1033sub parse_ref {
1034        my $ref_file = shift;
1035        my $ref_id = shift;
1036        my $type = shift || git_get_type($ref_id);
1037        my %ref_item;
1038
1039        $ref_item{'type'} = $type;
1040        $ref_item{'id'} = $ref_id;
1041        $ref_item{'epoch'} = 0;
1042        $ref_item{'age'} = "unknown";
1043        if ($type eq "tag") {
1044                my %tag = parse_tag($ref_id);
1045                $ref_item{'comment'} = $tag{'comment'};
1046                if ($tag{'type'} eq "commit") {
1047                        my %co = parse_commit($tag{'object'});
1048                        $ref_item{'epoch'} = $co{'committer_epoch'};
1049                        $ref_item{'age'} = $co{'age_string'};
1050                } elsif (defined($tag{'epoch'})) {
1051                        my $age = time - $tag{'epoch'};
1052                        $ref_item{'epoch'} = $tag{'epoch'};
1053                        $ref_item{'age'} = age_string($age);
1054                }
1055                $ref_item{'reftype'} = $tag{'type'};
1056                $ref_item{'name'} = $tag{'name'};
1057                $ref_item{'refid'} = $tag{'object'};
1058        } elsif ($type eq "commit"){
1059                my %co = parse_commit($ref_id);
1060                $ref_item{'reftype'} = "commit";
1061                $ref_item{'name'} = $ref_file;
1062                $ref_item{'title'} = $co{'title'};
1063                $ref_item{'refid'} = $ref_id;
1064                $ref_item{'epoch'} = $co{'committer_epoch'};
1065                $ref_item{'age'} = $co{'age_string'};
1066        } else {
1067                $ref_item{'reftype'} = $type;
1068                $ref_item{'name'} = $ref_file;
1069                $ref_item{'refid'} = $ref_id;
1070        }
1071
1072        return %ref_item;
1073}
1074
1075# parse line of git-diff-tree "raw" output
1076sub parse_difftree_raw_line {
1077        my $line = shift;
1078        my %res;
1079
1080        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1081        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1082        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1083                $res{'from_mode'} = $1;
1084                $res{'to_mode'} = $2;
1085                $res{'from_id'} = $3;
1086                $res{'to_id'} = $4;
1087                $res{'status'} = $5;
1088                $res{'similarity'} = $6;
1089                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1090                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1091                } else {
1092                        $res{'file'} = unquote($7);
1093                }
1094        }
1095        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1096        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1097                $res{'commit'} = $1;
1098        }
1099
1100        return wantarray ? %res : \%res;
1101}
1102
1103# parse line of git-ls-tree output
1104sub parse_ls_tree_line ($;%) {
1105        my $line = shift;
1106        my %opts = @_;
1107        my %res;
1108
1109        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1110        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1111
1112        $res{'mode'} = $1;
1113        $res{'type'} = $2;
1114        $res{'hash'} = $3;
1115        if ($opts{'-z'}) {
1116                $res{'name'} = $4;
1117        } else {
1118                $res{'name'} = unquote($4);
1119        }
1120
1121        return wantarray ? %res : \%res;
1122}
1123
1124## ......................................................................
1125## parse to array of hashes functions
1126
1127sub git_get_refs_list {
1128        my $ref_dir = shift;
1129        my @reflist;
1130
1131        my @refs;
1132        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1133                or return;
1134        while (my $line = <$fd>) {
1135                chomp $line;
1136                if ($line =~ m/^([0-9a-fA-F]{40})\t$ref_dir\/?([^\^]+)$/) {
1137                        push @refs, { hash => $1, name => $2 };
1138                } elsif ($line =~ m/^[0-9a-fA-F]{40}\t$ref_dir\/?(.*)\^\{\}$/ &&
1139                         $1 eq $refs[-1]{'name'}) {
1140                        # most likely a tag is followed by its peeled
1141                        # (deref) one, and when that happens we know the
1142                        # previous one was of type 'tag'.
1143                        $refs[-1]{'type'} = "tag";
1144                }
1145        }
1146        close $fd;
1147
1148        foreach my $ref (@refs) {
1149                my $ref_file = $ref->{'name'};
1150                my $ref_id   = $ref->{'hash'};
1151
1152                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1153                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1154
1155                push @reflist, \%ref_item;
1156        }
1157        # sort refs by age
1158        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1159        return \@reflist;
1160}
1161
1162## ----------------------------------------------------------------------
1163## filesystem-related functions
1164
1165sub get_file_owner {
1166        my $path = shift;
1167
1168        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1169        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1170        if (!defined $gcos) {
1171                return undef;
1172        }
1173        my $owner = $gcos;
1174        $owner =~ s/[,;].*$//;
1175        return decode("utf8", $owner, Encode::FB_DEFAULT);
1176}
1177
1178## ......................................................................
1179## mimetype related functions
1180
1181sub mimetype_guess_file {
1182        my $filename = shift;
1183        my $mimemap = shift;
1184        -r $mimemap or return undef;
1185
1186        my %mimemap;
1187        open(MIME, $mimemap) or return undef;
1188        while (<MIME>) {
1189                next if m/^#/; # skip comments
1190                my ($mime, $exts) = split(/\t+/);
1191                if (defined $exts) {
1192                        my @exts = split(/\s+/, $exts);
1193                        foreach my $ext (@exts) {
1194                                $mimemap{$ext} = $mime;
1195                        }
1196                }
1197        }
1198        close(MIME);
1199
1200        $filename =~ /\.(.*?)$/;
1201        return $mimemap{$1};
1202}
1203
1204sub mimetype_guess {
1205        my $filename = shift;
1206        my $mime;
1207        $filename =~ /\./ or return undef;
1208
1209        if ($mimetypes_file) {
1210                my $file = $mimetypes_file;
1211                if ($file !~ m!^/!) { # if it is relative path
1212                        # it is relative to project
1213                        $file = "$projectroot/$project/$file";
1214                }
1215                $mime = mimetype_guess_file($filename, $file);
1216        }
1217        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1218        return $mime;
1219}
1220
1221sub blob_mimetype {
1222        my $fd = shift;
1223        my $filename = shift;
1224
1225        if ($filename) {
1226                my $mime = mimetype_guess($filename);
1227                $mime and return $mime;
1228        }
1229
1230        # just in case
1231        return $default_blob_plain_mimetype unless $fd;
1232
1233        if (-T $fd) {
1234                return 'text/plain' .
1235                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1236        } elsif (! $filename) {
1237                return 'application/octet-stream';
1238        } elsif ($filename =~ m/\.png$/i) {
1239                return 'image/png';
1240        } elsif ($filename =~ m/\.gif$/i) {
1241                return 'image/gif';
1242        } elsif ($filename =~ m/\.jpe?g$/i) {
1243                return 'image/jpeg';
1244        } else {
1245                return 'application/octet-stream';
1246        }
1247}
1248
1249## ======================================================================
1250## functions printing HTML: header, footer, error page
1251
1252sub git_header_html {
1253        my $status = shift || "200 OK";
1254        my $expires = shift;
1255
1256        my $title = "$site_name git";
1257        if (defined $project) {
1258                $title .= " - $project";
1259                if (defined $action) {
1260                        $title .= "/$action";
1261                        if (defined $file_name) {
1262                                $title .= " - $file_name";
1263                                if ($action eq "tree" && $file_name !~ m|/$|) {
1264                                        $title .= "/";
1265                                }
1266                        }
1267                }
1268        }
1269        my $content_type;
1270        # require explicit support from the UA if we are to send the page as
1271        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1272        # we have to do this because MSIE sometimes globs '*/*', pretending to
1273        # support xhtml+xml but choking when it gets what it asked for.
1274        if (defined $cgi->http('HTTP_ACCEPT') &&
1275            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1276            $cgi->Accept('application/xhtml+xml') != 0) {
1277                $content_type = 'application/xhtml+xml';
1278        } else {
1279                $content_type = 'text/html';
1280        }
1281        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1282                           -status=> $status, -expires => $expires);
1283        print <<EOF;
1284<?xml version="1.0" encoding="utf-8"?>
1285<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1286<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1287<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1288<!-- git core binaries version $git_version -->
1289<head>
1290<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1291<meta name="generator" content="gitweb/$version git/$git_version"/>
1292<meta name="robots" content="index, nofollow"/>
1293<title>$title</title>
1294<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1295EOF
1296        if (defined $project) {
1297                printf('<link rel="alternate" title="%s log" '.
1298                       'href="%s" type="application/rss+xml"/>'."\n",
1299                       esc_param($project), href(action=>"rss"));
1300        } else {
1301                printf('<link rel="alternate" title="%s projects list" '.
1302                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1303                       $site_name, href(project=>undef, action=>"project_index"));
1304                printf('<link rel="alternate" title="%s projects logs" '.
1305                       'href="%s" type="text/x-opml"/>'."\n",
1306                       $site_name, href(project=>undef, action=>"opml"));
1307        }
1308        if (defined $favicon) {
1309                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1310        }
1311
1312        print "</head>\n" .
1313              "<body>\n" .
1314              "<div class=\"page_header\">\n" .
1315              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1316              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1317              "</a>\n";
1318        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1319        if (defined $project) {
1320                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1321                if (defined $action) {
1322                        print " / $action";
1323                }
1324                print "\n";
1325                if (!defined $searchtext) {
1326                        $searchtext = "";
1327                }
1328                my $search_hash;
1329                if (defined $hash_base) {
1330                        $search_hash = $hash_base;
1331                } elsif (defined $hash) {
1332                        $search_hash = $hash;
1333                } else {
1334                        $search_hash = "HEAD";
1335                }
1336                $cgi->param("a", "search");
1337                $cgi->param("h", $search_hash);
1338                print $cgi->startform(-method => "get", -action => $my_uri) .
1339                      "<div class=\"search\">\n" .
1340                      $cgi->hidden(-name => "p") . "\n" .
1341                      $cgi->hidden(-name => "a") . "\n" .
1342                      $cgi->hidden(-name => "h") . "\n" .
1343                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1344                      "</div>" .
1345                      $cgi->end_form() . "\n";
1346        }
1347        print "</div>\n";
1348}
1349
1350sub git_footer_html {
1351        print "<div class=\"page_footer\">\n";
1352        if (defined $project) {
1353                my $descr = git_get_project_description($project);
1354                if (defined $descr) {
1355                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1356                }
1357                print $cgi->a({-href => href(action=>"rss"),
1358                              -class => "rss_logo"}, "RSS") . "\n";
1359        } else {
1360                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1361                              -class => "rss_logo"}, "OPML") . " ";
1362                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1363                              -class => "rss_logo"}, "TXT") . "\n";
1364        }
1365        print "</div>\n" .
1366              "</body>\n" .
1367              "</html>";
1368}
1369
1370sub die_error {
1371        my $status = shift || "403 Forbidden";
1372        my $error = shift || "Malformed query, file missing or permission denied";
1373
1374        git_header_html($status);
1375        print <<EOF;
1376<div class="page_body">
1377<br /><br />
1378$status - $error
1379<br />
1380</div>
1381EOF
1382        git_footer_html();
1383        exit;
1384}
1385
1386## ----------------------------------------------------------------------
1387## functions printing or outputting HTML: navigation
1388
1389sub git_print_page_nav {
1390        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1391        $extra = '' if !defined $extra; # pager or formats
1392
1393        my @navs = qw(summary shortlog log commit commitdiff tree);
1394        if ($suppress) {
1395                @navs = grep { $_ ne $suppress } @navs;
1396        }
1397
1398        my %arg = map { $_ => {action=>$_} } @navs;
1399        if (defined $head) {
1400                for (qw(commit commitdiff)) {
1401                        $arg{$_}{hash} = $head;
1402                }
1403                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1404                        for (qw(shortlog log)) {
1405                                $arg{$_}{hash} = $head;
1406                        }
1407                }
1408        }
1409        $arg{tree}{hash} = $treehead if defined $treehead;
1410        $arg{tree}{hash_base} = $treebase if defined $treebase;
1411
1412        print "<div class=\"page_nav\">\n" .
1413                (join " | ",
1414                 map { $_ eq $current ?
1415                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1416                 } @navs);
1417        print "<br/>\n$extra<br/>\n" .
1418              "</div>\n";
1419}
1420
1421sub format_paging_nav {
1422        my ($action, $hash, $head, $page, $nrevs) = @_;
1423        my $paging_nav;
1424
1425
1426        if ($hash ne $head || $page) {
1427                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1428        } else {
1429                $paging_nav .= "HEAD";
1430        }
1431
1432        if ($page > 0) {
1433                $paging_nav .= " &sdot; " .
1434                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1435                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1436        } else {
1437                $paging_nav .= " &sdot; prev";
1438        }
1439
1440        if ($nrevs >= (100 * ($page+1)-1)) {
1441                $paging_nav .= " &sdot; " .
1442                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1443                                 -accesskey => "n", -title => "Alt-n"}, "next");
1444        } else {
1445                $paging_nav .= " &sdot; next";
1446        }
1447
1448        return $paging_nav;
1449}
1450
1451## ......................................................................
1452## functions printing or outputting HTML: div
1453
1454sub git_print_header_div {
1455        my ($action, $title, $hash, $hash_base) = @_;
1456        my %args = ();
1457
1458        $args{action} = $action;
1459        $args{hash} = $hash if $hash;
1460        $args{hash_base} = $hash_base if $hash_base;
1461
1462        print "<div class=\"header\">\n" .
1463              $cgi->a({-href => href(%args), -class => "title"},
1464              $title ? $title : $action) .
1465              "\n</div>\n";
1466}
1467
1468#sub git_print_authorship (\%) {
1469sub git_print_authorship {
1470        my $co = shift;
1471
1472        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1473        print "<div class=\"author_date\">" .
1474              esc_html($co->{'author_name'}) .
1475              " [$ad{'rfc2822'}";
1476        if ($ad{'hour_local'} < 6) {
1477                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1478                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1479        } else {
1480                printf(" (%02d:%02d %s)",
1481                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1482        }
1483        print "]</div>\n";
1484}
1485
1486sub git_print_page_path {
1487        my $name = shift;
1488        my $type = shift;
1489        my $hb = shift;
1490
1491        if (!defined $name) {
1492                print "<div class=\"page_path\">/</div>\n";
1493        } else {
1494                my @dirname = split '/', $name;
1495                my $basename = pop @dirname;
1496                my $fullname = '';
1497
1498                print "<div class=\"page_path\">";
1499                foreach my $dir (@dirname) {
1500                        $fullname .= $dir . '/';
1501                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1502                                                     hash_base=>$hb),
1503                                      -title => $fullname}, esc_html($dir));
1504                        print "/";
1505                }
1506                if (defined $type && $type eq 'blob') {
1507                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1508                                                     hash_base=>$hb),
1509                                      -title => $name}, esc_html($basename));
1510                } elsif (defined $type && $type eq 'tree') {
1511                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1512                                                     hash_base=>$hb),
1513                                      -title => $name}, esc_html($basename));
1514                        print "/";
1515                } else {
1516                        print esc_html($basename);
1517                }
1518                print "<br/></div>\n";
1519        }
1520}
1521
1522# sub git_print_log (\@;%) {
1523sub git_print_log ($;%) {
1524        my $log = shift;
1525        my %opts = @_;
1526
1527        if ($opts{'-remove_title'}) {
1528                # remove title, i.e. first line of log
1529                shift @$log;
1530        }
1531        # remove leading empty lines
1532        while (defined $log->[0] && $log->[0] eq "") {
1533                shift @$log;
1534        }
1535
1536        # print log
1537        my $signoff = 0;
1538        my $empty = 0;
1539        foreach my $line (@$log) {
1540                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1541                        $signoff = 1;
1542                        $empty = 0;
1543                        if (! $opts{'-remove_signoff'}) {
1544                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1545                                next;
1546                        } else {
1547                                # remove signoff lines
1548                                next;
1549                        }
1550                } else {
1551                        $signoff = 0;
1552                }
1553
1554                # print only one empty line
1555                # do not print empty line after signoff
1556                if ($line eq "") {
1557                        next if ($empty || $signoff);
1558                        $empty = 1;
1559                } else {
1560                        $empty = 0;
1561                }
1562
1563                print format_log_line_html($line) . "<br/>\n";
1564        }
1565
1566        if ($opts{'-final_empty_line'}) {
1567                # end with single empty line
1568                print "<br/>\n" unless $empty;
1569        }
1570}
1571
1572sub git_print_simplified_log {
1573        my $log = shift;
1574        my $remove_title = shift;
1575
1576        git_print_log($log,
1577                -final_empty_line=> 1,
1578                -remove_title => $remove_title);
1579}
1580
1581# print tree entry (row of git_tree), but without encompassing <tr> element
1582sub git_print_tree_entry {
1583        my ($t, $basedir, $hash_base, $have_blame) = @_;
1584
1585        my %base_key = ();
1586        $base_key{hash_base} = $hash_base if defined $hash_base;
1587
1588        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1589        if ($t->{'type'} eq "blob") {
1590                print "<td class=\"list\">" .
1591                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1592                                             file_name=>"$basedir$t->{'name'}", %base_key),
1593                              -class => "list"}, esc_html($t->{'name'})) .
1594                      "</td>\n" .
1595                      "<td class=\"link\">" .
1596                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1597                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1598                              "blob");
1599                if ($have_blame) {
1600                        print " | " .
1601                                $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1602                                                       file_name=>"$basedir$t->{'name'}", %base_key)},
1603                                        "blame");
1604                }
1605                if (defined $hash_base) {
1606                        print " | " .
1607                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1608                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1609                                      "history");
1610                }
1611                print " | " .
1612                      $cgi->a({-href => href(action=>"blob_plain",
1613                                             hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1614                              "raw") .
1615                      "</td>\n";
1616
1617        } elsif ($t->{'type'} eq "tree") {
1618                print "<td class=\"list\">" .
1619                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1620                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1621                              esc_html($t->{'name'})) .
1622                      "</td>\n" .
1623                      "<td class=\"link\">" .
1624                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1625                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1626                              "tree");
1627                if (defined $hash_base) {
1628                        print " | " .
1629                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1630                                                     file_name=>"$basedir$t->{'name'}")},
1631                                      "history");
1632                }
1633                print "</td>\n";
1634        }
1635}
1636
1637## ......................................................................
1638## functions printing large fragments of HTML
1639
1640sub git_difftree_body {
1641        my ($difftree, $hash, $parent) = @_;
1642
1643        print "<div class=\"list_head\">\n";
1644        if ($#{$difftree} > 10) {
1645                print(($#{$difftree} + 1) . " files changed:\n");
1646        }
1647        print "</div>\n";
1648
1649        print "<table class=\"diff_tree\">\n";
1650        my $alternate = 0;
1651        my $patchno = 0;
1652        foreach my $line (@{$difftree}) {
1653                my %diff = parse_difftree_raw_line($line);
1654
1655                if ($alternate) {
1656                        print "<tr class=\"dark\">\n";
1657                } else {
1658                        print "<tr class=\"light\">\n";
1659                }
1660                $alternate ^= 1;
1661
1662                my ($to_mode_oct, $to_mode_str, $to_file_type);
1663                my ($from_mode_oct, $from_mode_str, $from_file_type);
1664                if ($diff{'to_mode'} ne ('0' x 6)) {
1665                        $to_mode_oct = oct $diff{'to_mode'};
1666                        if (S_ISREG($to_mode_oct)) { # only for regular file
1667                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1668                        }
1669                        $to_file_type = file_type($diff{'to_mode'});
1670                }
1671                if ($diff{'from_mode'} ne ('0' x 6)) {
1672                        $from_mode_oct = oct $diff{'from_mode'};
1673                        if (S_ISREG($to_mode_oct)) { # only for regular file
1674                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1675                        }
1676                        $from_file_type = file_type($diff{'from_mode'});
1677                }
1678
1679                if ($diff{'status'} eq "A") { # created
1680                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1681                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1682                        $mode_chng   .= "]</span>";
1683                        print "<td>" .
1684                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1685                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1686                                      -class => "list"}, esc_html($diff{'file'})) .
1687                              "</td>\n" .
1688                              "<td>$mode_chng</td>\n" .
1689                              "<td class=\"link\">" .
1690                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1691                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1692                                      "blob");
1693                        if ($action eq 'commitdiff') {
1694                                # link to patch
1695                                $patchno++;
1696                                print " | " .
1697                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1698                        }
1699                        print "</td>\n";
1700
1701                } elsif ($diff{'status'} eq "D") { # deleted
1702                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1703                        print "<td>" .
1704                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1705                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1706                                       -class => "list"}, esc_html($diff{'file'})) .
1707                              "</td>\n" .
1708                              "<td>$mode_chng</td>\n" .
1709                              "<td class=\"link\">" .
1710                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1711                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1712                                      "blob") .
1713                              " | ";
1714                        if ($action eq 'commitdiff') {
1715                                # link to patch
1716                                $patchno++;
1717                                print " | " .
1718                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1719                        }
1720                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1721                                                     file_name=>$diff{'file'})},
1722                                      "history") .
1723                              "</td>\n";
1724
1725                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1726                        my $mode_chnge = "";
1727                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1728                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1729                                if ($from_file_type != $to_file_type) {
1730                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1731                                }
1732                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1733                                        if ($from_mode_str && $to_mode_str) {
1734                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1735                                        } elsif ($to_mode_str) {
1736                                                $mode_chnge .= " mode: $to_mode_str";
1737                                        }
1738                                }
1739                                $mode_chnge .= "]</span>\n";
1740                        }
1741                        print "<td>";
1742                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1743                                print $cgi->a({-href => href(action=>"blobdiff",
1744                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1745                                                             hash_base=>$hash, hash_parent_base=>$parent,
1746                                                             file_name=>$diff{'file'}),
1747                                              -class => "list"}, esc_html($diff{'file'}));
1748                        } else { # only mode changed
1749                                print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1750                                                             hash_base=>$hash, file_name=>$diff{'file'}),
1751                                              -class => "list"}, esc_html($diff{'file'}));
1752                        }
1753                        print "</td>\n" .
1754                              "<td>$mode_chnge</td>\n" .
1755                              "<td class=\"link\">" .
1756                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1757                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1758                                      "blob");
1759                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1760                                if ($action eq 'commitdiff') {
1761                                        # link to patch
1762                                        $patchno++;
1763                                        print " | " .
1764                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1765                                } else {
1766                                        print " | " .
1767                                                $cgi->a({-href => href(action=>"blobdiff",
1768                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1769                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1770                                                                       file_name=>$diff{'file'})},
1771                                                        "diff");
1772                                }
1773                        }
1774                        print " | " .
1775                                $cgi->a({-href => href(action=>"history",
1776                                                       hash_base=>$hash, file_name=>$diff{'file'})},
1777                                        "history");
1778                        print "</td>\n";
1779
1780                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1781                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1782                        my $nstatus = $status_name{$diff{'status'}};
1783                        my $mode_chng = "";
1784                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1785                                # mode also for directories, so we cannot use $to_mode_str
1786                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1787                        }
1788                        print "<td>" .
1789                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1790                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1791                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1792                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1793                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1794                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1795                                      -class => "list"}, esc_html($diff{'from_file'})) .
1796                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1797                              "<td class=\"link\">" .
1798                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1799                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1800                                      "blob");
1801                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1802                                if ($action eq 'commitdiff') {
1803                                        # link to patch
1804                                        $patchno++;
1805                                        print " | " .
1806                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1807                                } else {
1808                                        print " | " .
1809                                                $cgi->a({-href => href(action=>"blobdiff",
1810                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1811                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1812                                                                       file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1813                                                        "diff");
1814                                }
1815                        }
1816                        print "</td>\n";
1817
1818                } # we should not encounter Unmerged (U) or Unknown (X) status
1819                print "</tr>\n";
1820        }
1821        print "</table>\n";
1822}
1823
1824sub git_patchset_body {
1825        my ($fd, $difftree, $hash, $hash_parent) = @_;
1826
1827        my $patch_idx = 0;
1828        my $in_header = 0;
1829        my $patch_found = 0;
1830        my $diffinfo;
1831
1832        print "<div class=\"patchset\">\n";
1833
1834        LINE:
1835        while (my $patch_line = <$fd>) {
1836                chomp $patch_line;
1837
1838                if ($patch_line =~ m/^diff /) { # "git diff" header
1839                        # beginning of patch (in patchset)
1840                        if ($patch_found) {
1841                                # close previous patch
1842                                print "</div>\n"; # class="patch"
1843                        } else {
1844                                # first patch in patchset
1845                                $patch_found = 1;
1846                        }
1847                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1848
1849                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1850                                $diffinfo = $difftree->[$patch_idx];
1851                        } else {
1852                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1853                        }
1854                        $patch_idx++;
1855
1856                        # for now, no extended header, hence we skip empty patches
1857                        # companion to  next LINE if $in_header;
1858                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1859                                $in_header = 1;
1860                                next LINE;
1861                        }
1862
1863                        if ($diffinfo->{'status'} eq "A") { # added
1864                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1865                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1866                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1867                                              $diffinfo->{'to_id'}) . "(new)" .
1868                                      "</div>\n"; # class="diff_info"
1869
1870                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1871                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1872                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1873                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1874                                              $diffinfo->{'from_id'}) . "(deleted)" .
1875                                      "</div>\n"; # class="diff_info"
1876
1877                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1878                                 $diffinfo->{'status'} eq "C" || # copied
1879                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1880                                print "<div class=\"diff_info\">" .
1881                                      file_type($diffinfo->{'from_mode'}) . ":" .
1882                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1883                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1884                                              $diffinfo->{'from_id'}) .
1885                                      " -> " .
1886                                      file_type($diffinfo->{'to_mode'}) . ":" .
1887                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1888                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1889                                              $diffinfo->{'to_id'});
1890                                print "</div>\n"; # class="diff_info"
1891
1892                        } else { # modified, mode changed, ...
1893                                print "<div class=\"diff_info\">" .
1894                                      file_type($diffinfo->{'from_mode'}) . ":" .
1895                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1896                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1897                                              $diffinfo->{'from_id'}) .
1898                                      " -> " .
1899                                      file_type($diffinfo->{'to_mode'}) . ":" .
1900                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1901                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1902                                              $diffinfo->{'to_id'});
1903                                print "</div>\n"; # class="diff_info"
1904                        }
1905
1906                        #print "<div class=\"diff extended_header\">\n";
1907                        $in_header = 1;
1908                        next LINE;
1909                } # start of patch in patchset
1910
1911
1912                if ($in_header && $patch_line =~ m/^---/) {
1913                        #print "</div>\n"; # class="diff extended_header"
1914                        $in_header = 0;
1915
1916                        my $file = $diffinfo->{'from_file'};
1917                        $file  ||= $diffinfo->{'file'};
1918                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1919                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1920                                        -class => "list"}, esc_html($file));
1921                        $patch_line =~ s|a/.*$|a/$file|g;
1922                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1923
1924                        $patch_line = <$fd>;
1925                        chomp $patch_line;
1926
1927                        #$patch_line =~ m/^+++/;
1928                        $file    = $diffinfo->{'to_file'};
1929                        $file  ||= $diffinfo->{'file'};
1930                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1931                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1932                                        -class => "list"}, esc_html($file));
1933                        $patch_line =~ s|b/.*|b/$file|g;
1934                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1935
1936                        next LINE;
1937                }
1938                next LINE if $in_header;
1939
1940                print format_diff_line($patch_line);
1941        }
1942        print "</div>\n" if $patch_found; # class="patch"
1943
1944        print "</div>\n"; # class="patchset"
1945}
1946
1947# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1948
1949sub git_shortlog_body {
1950        # uses global variable $project
1951        my ($revlist, $from, $to, $refs, $extra) = @_;
1952
1953        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1954        my $have_snapshot = (defined $ctype && defined $suffix);
1955
1956        $from = 0 unless defined $from;
1957        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1958
1959        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1960        my $alternate = 0;
1961        for (my $i = $from; $i <= $to; $i++) {
1962                my $commit = $revlist->[$i];
1963                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1964                my $ref = format_ref_marker($refs, $commit);
1965                my %co = parse_commit($commit);
1966                if ($alternate) {
1967                        print "<tr class=\"dark\">\n";
1968                } else {
1969                        print "<tr class=\"light\">\n";
1970                }
1971                $alternate ^= 1;
1972                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1973                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1974                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1975                      "<td>";
1976                print format_subject_html($co{'title'}, $co{'title_short'},
1977                                          href(action=>"commit", hash=>$commit), $ref);
1978                print "</td>\n" .
1979                      "<td class=\"link\">" .
1980                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1981                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1982                if ($have_snapshot) {
1983                        print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1984                }
1985                print "</td>\n" .
1986                      "</tr>\n";
1987        }
1988        if (defined $extra) {
1989                print "<tr>\n" .
1990                      "<td colspan=\"4\">$extra</td>\n" .
1991                      "</tr>\n";
1992        }
1993        print "</table>\n";
1994}
1995
1996sub git_history_body {
1997        # Warning: assumes constant type (blob or tree) during history
1998        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
1999
2000        $from = 0 unless defined $from;
2001        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2002
2003        print "<table class=\"history\" cellspacing=\"0\">\n";
2004        my $alternate = 0;
2005        for (my $i = $from; $i <= $to; $i++) {
2006                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2007                        next;
2008                }
2009
2010                my $commit = $1;
2011                my %co = parse_commit($commit);
2012                if (!%co) {
2013                        next;
2014                }
2015
2016                my $ref = format_ref_marker($refs, $commit);
2017
2018                if ($alternate) {
2019                        print "<tr class=\"dark\">\n";
2020                } else {
2021                        print "<tr class=\"light\">\n";
2022                }
2023                $alternate ^= 1;
2024                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2025                      # shortlog uses      chop_str($co{'author_name'}, 10)
2026                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2027                      "<td>";
2028                # originally git_history used chop_str($co{'title'}, 50)
2029                print format_subject_html($co{'title'}, $co{'title_short'},
2030                                          href(action=>"commit", hash=>$commit), $ref);
2031                print "</td>\n" .
2032                      "<td class=\"link\">" .
2033                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2034                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2035                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2036
2037                if ($ftype eq 'blob') {
2038                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2039                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2040                        if (defined $blob_current && defined $blob_parent &&
2041                                        $blob_current ne $blob_parent) {
2042                                print " | " .
2043                                        $cgi->a({-href => href(action=>"blobdiff",
2044                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2045                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2046                                                               file_name=>$file_name)},
2047                                                "diff to current");
2048                        }
2049                }
2050                print "</td>\n" .
2051                      "</tr>\n";
2052        }
2053        if (defined $extra) {
2054                print "<tr>\n" .
2055                      "<td colspan=\"4\">$extra</td>\n" .
2056                      "</tr>\n";
2057        }
2058        print "</table>\n";
2059}
2060
2061sub git_tags_body {
2062        # uses global variable $project
2063        my ($taglist, $from, $to, $extra) = @_;
2064        $from = 0 unless defined $from;
2065        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2066
2067        print "<table class=\"tags\" cellspacing=\"0\">\n";
2068        my $alternate = 0;
2069        for (my $i = $from; $i <= $to; $i++) {
2070                my $entry = $taglist->[$i];
2071                my %tag = %$entry;
2072                my $comment_lines = $tag{'comment'};
2073                my $comment = shift @$comment_lines;
2074                my $comment_short;
2075                if (defined $comment) {
2076                        $comment_short = chop_str($comment, 30, 5);
2077                }
2078                if ($alternate) {
2079                        print "<tr class=\"dark\">\n";
2080                } else {
2081                        print "<tr class=\"light\">\n";
2082                }
2083                $alternate ^= 1;
2084                print "<td><i>$tag{'age'}</i></td>\n" .
2085                      "<td>" .
2086                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2087                               -class => "list name"}, esc_html($tag{'name'})) .
2088                      "</td>\n" .
2089                      "<td>";
2090                if (defined $comment) {
2091                        print format_subject_html($comment, $comment_short,
2092                                                  href(action=>"tag", hash=>$tag{'id'}));
2093                }
2094                print "</td>\n" .
2095                      "<td class=\"selflink\">";
2096                if ($tag{'type'} eq "tag") {
2097                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2098                } else {
2099                        print "&nbsp;";
2100                }
2101                print "</td>\n" .
2102                      "<td class=\"link\">" . " | " .
2103                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2104                if ($tag{'reftype'} eq "commit") {
2105                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2106                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2107                } elsif ($tag{'reftype'} eq "blob") {
2108                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2109                }
2110                print "</td>\n" .
2111                      "</tr>";
2112        }
2113        if (defined $extra) {
2114                print "<tr>\n" .
2115                      "<td colspan=\"5\">$extra</td>\n" .
2116                      "</tr>\n";
2117        }
2118        print "</table>\n";
2119}
2120
2121sub git_heads_body {
2122        # uses global variable $project
2123        my ($taglist, $head, $from, $to, $extra) = @_;
2124        $from = 0 unless defined $from;
2125        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2126
2127        print "<table class=\"heads\" cellspacing=\"0\">\n";
2128        my $alternate = 0;
2129        for (my $i = $from; $i <= $to; $i++) {
2130                my $entry = $taglist->[$i];
2131                my %tag = %$entry;
2132                my $curr = $tag{'id'} eq $head;
2133                if ($alternate) {
2134                        print "<tr class=\"dark\">\n";
2135                } else {
2136                        print "<tr class=\"light\">\n";
2137                }
2138                $alternate ^= 1;
2139                print "<td><i>$tag{'age'}</i></td>\n" .
2140                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2141                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2142                               -class => "list name"},esc_html($tag{'name'})) .
2143                      "</td>\n" .
2144                      "<td class=\"link\">" .
2145                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2146                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2147                      "</td>\n" .
2148                      "</tr>";
2149        }
2150        if (defined $extra) {
2151                print "<tr>\n" .
2152                      "<td colspan=\"3\">$extra</td>\n" .
2153                      "</tr>\n";
2154        }
2155        print "</table>\n";
2156}
2157
2158## ======================================================================
2159## ======================================================================
2160## actions
2161
2162sub git_project_list {
2163        my $order = $cgi->param('o');
2164        if (defined $order && $order !~ m/project|descr|owner|age/) {
2165                die_error(undef, "Unknown order parameter");
2166        }
2167
2168        my @list = git_get_projects_list();
2169        my @projects;
2170        if (!@list) {
2171                die_error(undef, "No projects found");
2172        }
2173        foreach my $pr (@list) {
2174                my $head = git_get_head_hash($pr->{'path'});
2175                if (!defined $head) {
2176                        next;
2177                }
2178                $git_dir = "$projectroot/$pr->{'path'}";
2179                my %co = parse_commit($head);
2180                if (!%co) {
2181                        next;
2182                }
2183                $pr->{'commit'} = \%co;
2184                if (!defined $pr->{'descr'}) {
2185                        my $descr = git_get_project_description($pr->{'path'}) || "";
2186                        $pr->{'descr'} = chop_str($descr, 25, 5);
2187                }
2188                if (!defined $pr->{'owner'}) {
2189                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2190                }
2191                push @projects, $pr;
2192        }
2193
2194        git_header_html();
2195        if (-f $home_text) {
2196                print "<div class=\"index_include\">\n";
2197                open (my $fd, $home_text);
2198                print <$fd>;
2199                close $fd;
2200                print "</div>\n";
2201        }
2202        print "<table class=\"project_list\">\n" .
2203              "<tr>\n";
2204        $order ||= "project";
2205        if ($order eq "project") {
2206                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2207                print "<th>Project</th>\n";
2208        } else {
2209                print "<th>" .
2210                      $cgi->a({-href => href(project=>undef, order=>'project'),
2211                               -class => "header"}, "Project") .
2212                      "</th>\n";
2213        }
2214        if ($order eq "descr") {
2215                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2216                print "<th>Description</th>\n";
2217        } else {
2218                print "<th>" .
2219                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2220                               -class => "header"}, "Description") .
2221                      "</th>\n";
2222        }
2223        if ($order eq "owner") {
2224                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2225                print "<th>Owner</th>\n";
2226        } else {
2227                print "<th>" .
2228                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2229                               -class => "header"}, "Owner") .
2230                      "</th>\n";
2231        }
2232        if ($order eq "age") {
2233                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2234                print "<th>Last Change</th>\n";
2235        } else {
2236                print "<th>" .
2237                      $cgi->a({-href => href(project=>undef, order=>'age'),
2238                               -class => "header"}, "Last Change") .
2239                      "</th>\n";
2240        }
2241        print "<th></th>\n" .
2242              "</tr>\n";
2243        my $alternate = 0;
2244        foreach my $pr (@projects) {
2245                if ($alternate) {
2246                        print "<tr class=\"dark\">\n";
2247                } else {
2248                        print "<tr class=\"light\">\n";
2249                }
2250                $alternate ^= 1;
2251                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2252                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2253                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2254                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2255                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2256                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2257                      "<td class=\"link\">" .
2258                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2259                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2260                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2261                      "</td>\n" .
2262                      "</tr>\n";
2263        }
2264        print "</table>\n";
2265        git_footer_html();
2266}
2267
2268sub git_project_index {
2269        my @projects = git_get_projects_list();
2270
2271        print $cgi->header(
2272                -type => 'text/plain',
2273                -charset => 'utf-8',
2274                -content_disposition => qq(inline; filename="index.aux"));
2275
2276        foreach my $pr (@projects) {
2277                if (!exists $pr->{'owner'}) {
2278                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2279                }
2280
2281                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2282                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2283                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2284                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2285                $path  =~ s/ /\+/g;
2286                $owner =~ s/ /\+/g;
2287
2288                print "$path $owner\n";
2289        }
2290}
2291
2292sub git_summary {
2293        my $descr = git_get_project_description($project) || "none";
2294        my $head = git_get_head_hash($project);
2295        my %co = parse_commit($head);
2296        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2297
2298        my $owner = git_get_project_owner($project);
2299
2300        my $refs = git_get_references();
2301        git_header_html();
2302        git_print_page_nav('summary','', $head);
2303
2304        print "<div class=\"title\">&nbsp;</div>\n";
2305        print "<table cellspacing=\"0\">\n" .
2306              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2307              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2308              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2309        # use per project git URL list in $projectroot/$project/cloneurl
2310        # or make project git URL from git base URL and project name
2311        my $url_tag = "URL";
2312        my @url_list = git_get_project_url_list($project);
2313        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2314        foreach my $git_url (@url_list) {
2315                next unless $git_url;
2316                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2317                $url_tag = "";
2318        }
2319        print "</table>\n";
2320
2321        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2322                git_get_head_hash($project)
2323                or die_error(undef, "Open git-rev-list failed");
2324        my @revlist = map { chomp; $_ } <$fd>;
2325        close $fd;
2326        git_print_header_div('shortlog');
2327        git_shortlog_body(\@revlist, 0, 15, $refs,
2328                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2329
2330        my $taglist = git_get_refs_list("refs/tags");
2331        if (defined @$taglist) {
2332                git_print_header_div('tags');
2333                git_tags_body($taglist, 0, 15,
2334                              $cgi->a({-href => href(action=>"tags")}, "..."));
2335        }
2336
2337        my $headlist = git_get_refs_list("refs/heads");
2338        if (defined @$headlist) {
2339                git_print_header_div('heads');
2340                git_heads_body($headlist, $head, 0, 15,
2341                               $cgi->a({-href => href(action=>"heads")}, "..."));
2342        }
2343
2344        git_footer_html();
2345}
2346
2347sub git_tag {
2348        my $head = git_get_head_hash($project);
2349        git_header_html();
2350        git_print_page_nav('','', $head,undef,$head);
2351        my %tag = parse_tag($hash);
2352        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2353        print "<div class=\"title_text\">\n" .
2354              "<table cellspacing=\"0\">\n" .
2355              "<tr>\n" .
2356              "<td>object</td>\n" .
2357              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2358                               $tag{'object'}) . "</td>\n" .
2359              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2360                                              $tag{'type'}) . "</td>\n" .
2361              "</tr>\n";
2362        if (defined($tag{'author'})) {
2363                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2364                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2365                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2366                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2367                        "</td></tr>\n";
2368        }
2369        print "</table>\n\n" .
2370              "</div>\n";
2371        print "<div class=\"page_body\">";
2372        my $comment = $tag{'comment'};
2373        foreach my $line (@$comment) {
2374                print esc_html($line) . "<br/>\n";
2375        }
2376        print "</div>\n";
2377        git_footer_html();
2378}
2379
2380sub git_blame2 {
2381        my $fd;
2382        my $ftype;
2383
2384        my ($have_blame) = gitweb_check_feature('blame');
2385        if (!$have_blame) {
2386                die_error('403 Permission denied', "Permission denied");
2387        }
2388        die_error('404 Not Found', "File name not defined") if (!$file_name);
2389        $hash_base ||= git_get_head_hash($project);
2390        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2391        my %co = parse_commit($hash_base)
2392                or die_error(undef, "Reading commit failed");
2393        if (!defined $hash) {
2394                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2395                        or die_error(undef, "Error looking up file");
2396        }
2397        $ftype = git_get_type($hash);
2398        if ($ftype !~ "blob") {
2399                die_error("400 Bad Request", "Object is not a blob");
2400        }
2401        open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2402                or die_error(undef, "Open git-blame failed");
2403        git_header_html();
2404        my $formats_nav =
2405                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2406                        "blob") .
2407                " | " .
2408                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2409                        "head");
2410        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2411        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2412        git_print_page_path($file_name, $ftype, $hash_base);
2413        my @rev_color = (qw(light2 dark2));
2414        my $num_colors = scalar(@rev_color);
2415        my $current_color = 0;
2416        my $last_rev;
2417        print <<HTML;
2418<div class="page_body">
2419<table class="blame">
2420<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2421HTML
2422        while (<$fd>) {
2423                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2424                my $full_rev = $1;
2425                my $rev = substr($full_rev, 0, 8);
2426                my $lineno = $2;
2427                my $data = $3;
2428
2429                if (!defined $last_rev) {
2430                        $last_rev = $full_rev;
2431                } elsif ($last_rev ne $full_rev) {
2432                        $last_rev = $full_rev;
2433                        $current_color = ++$current_color % $num_colors;
2434                }
2435                print "<tr class=\"$rev_color[$current_color]\">\n";
2436                print "<td class=\"sha1\">" .
2437                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2438                                esc_html($rev)) . "</td>\n";
2439                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2440                      esc_html($lineno) . "</a></td>\n";
2441                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2442                print "</tr>\n";
2443        }
2444        print "</table>\n";
2445        print "</div>";
2446        close $fd
2447                or print "Reading blob failed\n";
2448        git_footer_html();
2449}
2450
2451sub git_blame {
2452        my $fd;
2453
2454        my ($have_blame) = gitweb_check_feature('blame');
2455        if (!$have_blame) {
2456                die_error('403 Permission denied', "Permission denied");
2457        }
2458        die_error('404 Not Found', "File name not defined") if (!$file_name);
2459        $hash_base ||= git_get_head_hash($project);
2460        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2461        my %co = parse_commit($hash_base)
2462                or die_error(undef, "Reading commit failed");
2463        if (!defined $hash) {
2464                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2465                        or die_error(undef, "Error lookup file");
2466        }
2467        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2468                or die_error(undef, "Open git-annotate failed");
2469        git_header_html();
2470        my $formats_nav =
2471                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2472                        "blob") .
2473                " | " .
2474                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2475                        "head");
2476        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2477        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2478        git_print_page_path($file_name, 'blob', $hash_base);
2479        print "<div class=\"page_body\">\n";
2480        print <<HTML;
2481<table class="blame">
2482  <tr>
2483    <th>Commit</th>
2484    <th>Age</th>
2485    <th>Author</th>
2486    <th>Line</th>
2487    <th>Data</th>
2488  </tr>
2489HTML
2490        my @line_class = (qw(light dark));
2491        my $line_class_len = scalar (@line_class);
2492        my $line_class_num = $#line_class;
2493        while (my $line = <$fd>) {
2494                my $long_rev;
2495                my $short_rev;
2496                my $author;
2497                my $time;
2498                my $lineno;
2499                my $data;
2500                my $age;
2501                my $age_str;
2502                my $age_class;
2503
2504                chomp $line;
2505                $line_class_num = ($line_class_num + 1) % $line_class_len;
2506
2507                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2508                        $long_rev = $1;
2509                        $author   = $2;
2510                        $time     = $3;
2511                        $lineno   = $4;
2512                        $data     = $5;
2513                } else {
2514                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2515                        next;
2516                }
2517                $short_rev  = substr ($long_rev, 0, 8);
2518                $age        = time () - $time;
2519                $age_str    = age_string ($age);
2520                $age_str    =~ s/ /&nbsp;/g;
2521                $age_class  = age_class($age);
2522                $author     = esc_html ($author);
2523                $author     =~ s/ /&nbsp;/g;
2524
2525                $data = untabify($data);
2526                $data = esc_html ($data);
2527
2528                print <<HTML;
2529  <tr class="$line_class[$line_class_num]">
2530    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2531    <td class="$age_class">$age_str</td>
2532    <td>$author</td>
2533    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2534    <td class="pre">$data</td>
2535  </tr>
2536HTML
2537        } # while (my $line = <$fd>)
2538        print "</table>\n\n";
2539        close $fd
2540                or print "Reading blob failed.\n";
2541        print "</div>";
2542        git_footer_html();
2543}
2544
2545sub git_tags {
2546        my $head = git_get_head_hash($project);
2547        git_header_html();
2548        git_print_page_nav('','', $head,undef,$head);
2549        git_print_header_div('summary', $project);
2550
2551        my $taglist = git_get_refs_list("refs/tags");
2552        if (defined @$taglist) {
2553                git_tags_body($taglist);
2554        }
2555        git_footer_html();
2556}
2557
2558sub git_heads {
2559        my $head = git_get_head_hash($project);
2560        git_header_html();
2561        git_print_page_nav('','', $head,undef,$head);
2562        git_print_header_div('summary', $project);
2563
2564        my $taglist = git_get_refs_list("refs/heads");
2565        if (defined @$taglist) {
2566                git_heads_body($taglist, $head);
2567        }
2568        git_footer_html();
2569}
2570
2571sub git_blob_plain {
2572        my $expires;
2573
2574        if (!defined $hash) {
2575                if (defined $file_name) {
2576                        my $base = $hash_base || git_get_head_hash($project);
2577                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2578                                or die_error(undef, "Error lookup file");
2579                } else {
2580                        die_error(undef, "No file name defined");
2581                }
2582        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2583                # blobs defined by non-textual hash id's can be cached
2584                $expires = "+1d";
2585        }
2586
2587        my $type = shift;
2588        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2589                or die_error(undef, "Couldn't cat $file_name, $hash");
2590
2591        $type ||= blob_mimetype($fd, $file_name);
2592
2593        # save as filename, even when no $file_name is given
2594        my $save_as = "$hash";
2595        if (defined $file_name) {
2596                $save_as = $file_name;
2597        } elsif ($type =~ m/^text\//) {
2598                $save_as .= '.txt';
2599        }
2600
2601        print $cgi->header(
2602                -type => "$type",
2603                -expires=>$expires,
2604                -content_disposition => "inline; filename=\"$save_as\"");
2605        undef $/;
2606        binmode STDOUT, ':raw';
2607        print <$fd>;
2608        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2609        $/ = "\n";
2610        close $fd;
2611}
2612
2613sub git_blob {
2614        my $expires;
2615
2616        if (!defined $hash) {
2617                if (defined $file_name) {
2618                        my $base = $hash_base || git_get_head_hash($project);
2619                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2620                                or die_error(undef, "Error lookup file");
2621                } else {
2622                        die_error(undef, "No file name defined");
2623                }
2624        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2625                # blobs defined by non-textual hash id's can be cached
2626                $expires = "+1d";
2627        }
2628
2629        my ($have_blame) = gitweb_check_feature('blame');
2630        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2631                or die_error(undef, "Couldn't cat $file_name, $hash");
2632        my $mimetype = blob_mimetype($fd, $file_name);
2633        if ($mimetype !~ m/^text\//) {
2634                close $fd;
2635                return git_blob_plain($mimetype);
2636        }
2637        git_header_html(undef, $expires);
2638        my $formats_nav = '';
2639        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2640                if (defined $file_name) {
2641                        if ($have_blame) {
2642                                $formats_nav .=
2643                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2644                                                               hash=>$hash, file_name=>$file_name)},
2645                                                "blame") .
2646                                        " | ";
2647                        }
2648                        $formats_nav .=
2649                                $cgi->a({-href => href(action=>"blob_plain",
2650                                                       hash=>$hash, file_name=>$file_name)},
2651                                        "plain") .
2652                                " | " .
2653                                $cgi->a({-href => href(action=>"blob",
2654                                                       hash_base=>"HEAD", file_name=>$file_name)},
2655                                        "head");
2656                } else {
2657                        $formats_nav .=
2658                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2659                }
2660                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2661                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2662        } else {
2663                print "<div class=\"page_nav\">\n" .
2664                      "<br/><br/></div>\n" .
2665                      "<div class=\"title\">$hash</div>\n";
2666        }
2667        git_print_page_path($file_name, "blob", $hash_base);
2668        print "<div class=\"page_body\">\n";
2669        my $nr;
2670        while (my $line = <$fd>) {
2671                chomp $line;
2672                $nr++;
2673                $line = untabify($line);
2674                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2675                       $nr, $nr, $nr, esc_html($line);
2676        }
2677        close $fd
2678                or print "Reading blob failed.\n";
2679        print "</div>";
2680        git_footer_html();
2681}
2682
2683sub git_tree {
2684        if (!defined $hash) {
2685                $hash = git_get_head_hash($project);
2686                if (defined $file_name) {
2687                        my $base = $hash_base || $hash;
2688                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2689                }
2690                if (!defined $hash_base) {
2691                        $hash_base = $hash;
2692                }
2693        }
2694        $/ = "\0";
2695        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2696                or die_error(undef, "Open git-ls-tree failed");
2697        my @entries = map { chomp; $_ } <$fd>;
2698        close $fd or die_error(undef, "Reading tree failed");
2699        $/ = "\n";
2700
2701        my $refs = git_get_references();
2702        my $ref = format_ref_marker($refs, $hash_base);
2703        git_header_html();
2704        my $base = "";
2705        my ($have_blame) = gitweb_check_feature('blame');
2706        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2707                git_print_page_nav('tree','', $hash_base);
2708                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2709        } else {
2710                undef $hash_base;
2711                print "<div class=\"page_nav\">\n";
2712                print "<br/><br/></div>\n";
2713                print "<div class=\"title\">$hash</div>\n";
2714        }
2715        if (defined $file_name) {
2716                $base = esc_html("$file_name/");
2717        }
2718        git_print_page_path($file_name, 'tree', $hash_base);
2719        print "<div class=\"page_body\">\n";
2720        print "<table cellspacing=\"0\">\n";
2721        my $alternate = 0;
2722        foreach my $line (@entries) {
2723                my %t = parse_ls_tree_line($line, -z => 1);
2724
2725                if ($alternate) {
2726                        print "<tr class=\"dark\">\n";
2727                } else {
2728                        print "<tr class=\"light\">\n";
2729                }
2730                $alternate ^= 1;
2731
2732                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2733
2734                print "</tr>\n";
2735        }
2736        print "</table>\n" .
2737              "</div>";
2738        git_footer_html();
2739}
2740
2741sub git_snapshot {
2742
2743        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2744        my $have_snapshot = (defined $ctype && defined $suffix);
2745        if (!$have_snapshot) {
2746                die_error('403 Permission denied', "Permission denied");
2747        }
2748
2749        if (!defined $hash) {
2750                $hash = git_get_head_hash($project);
2751        }
2752
2753        my $filename = basename($project) . "-$hash.tar.$suffix";
2754
2755        print $cgi->header(-type => 'application/x-tar',
2756                           -content_encoding => $ctype,
2757                           -content_disposition => "inline; filename=\"$filename\"",
2758                           -status => '200 OK');
2759
2760        my $git_command = git_cmd_str();
2761        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2762                die_error(undef, "Execute git-tar-tree failed.");
2763        binmode STDOUT, ':raw';
2764        print <$fd>;
2765        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2766        close $fd;
2767
2768}
2769
2770sub git_log {
2771        my $head = git_get_head_hash($project);
2772        if (!defined $hash) {
2773                $hash = $head;
2774        }
2775        if (!defined $page) {
2776                $page = 0;
2777        }
2778        my $refs = git_get_references();
2779
2780        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2781        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2782                or die_error(undef, "Open git-rev-list failed");
2783        my @revlist = map { chomp; $_ } <$fd>;
2784        close $fd;
2785
2786        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2787
2788        git_header_html();
2789        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2790
2791        if (!@revlist) {
2792                my %co = parse_commit($hash);
2793
2794                git_print_header_div('summary', $project);
2795                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2796        }
2797        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2798                my $commit = $revlist[$i];
2799                my $ref = format_ref_marker($refs, $commit);
2800                my %co = parse_commit($commit);
2801                next if !%co;
2802                my %ad = parse_date($co{'author_epoch'});
2803                git_print_header_div('commit',
2804                               "<span class=\"age\">$co{'age_string'}</span>" .
2805                               esc_html($co{'title'}) . $ref,
2806                               $commit);
2807                print "<div class=\"title_text\">\n" .
2808                      "<div class=\"log_link\">\n" .
2809                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2810                      " | " .
2811                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2812                      "<br/>\n" .
2813                      "</div>\n" .
2814                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2815                      "</div>\n";
2816
2817                print "<div class=\"log_body\">\n";
2818                git_print_simplified_log($co{'comment'});
2819                print "</div>\n";
2820        }
2821        git_footer_html();
2822}
2823
2824sub git_commit {
2825        my %co = parse_commit($hash);
2826        if (!%co) {
2827                die_error(undef, "Unknown commit object");
2828        }
2829        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2830        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2831
2832        my $parent = $co{'parent'};
2833        if (!defined $parent) {
2834                $parent = "--root";
2835        }
2836        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2837                or die_error(undef, "Open git-diff-tree failed");
2838        my @difftree = map { chomp; $_ } <$fd>;
2839        close $fd or die_error(undef, "Reading git-diff-tree failed");
2840
2841        # non-textual hash id's can be cached
2842        my $expires;
2843        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2844                $expires = "+1d";
2845        }
2846        my $refs = git_get_references();
2847        my $ref = format_ref_marker($refs, $co{'id'});
2848
2849        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2850        my $have_snapshot = (defined $ctype && defined $suffix);
2851
2852        my $formats_nav = '';
2853        if (defined $file_name && defined $co{'parent'}) {
2854                my $parent = $co{'parent'};
2855                $formats_nav .=
2856                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2857                                "blame");
2858        }
2859        git_header_html(undef, $expires);
2860        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2861                           $hash, $co{'tree'}, $hash,
2862                           $formats_nav);
2863
2864        if (defined $co{'parent'}) {
2865                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2866        } else {
2867                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2868        }
2869        print "<div class=\"title_text\">\n" .
2870              "<table cellspacing=\"0\">\n";
2871        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2872              "<tr>" .
2873              "<td></td><td> $ad{'rfc2822'}";
2874        if ($ad{'hour_local'} < 6) {
2875                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2876                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2877        } else {
2878                printf(" (%02d:%02d %s)",
2879                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2880        }
2881        print "</td>" .
2882              "</tr>\n";
2883        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2884        print "<tr><td></td><td> $cd{'rfc2822'}" .
2885              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2886              "</td></tr>\n";
2887        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2888        print "<tr>" .
2889              "<td>tree</td>" .
2890              "<td class=\"sha1\">" .
2891              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2892                       class => "list"}, $co{'tree'}) .
2893              "</td>" .
2894              "<td class=\"link\">" .
2895              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2896                      "tree");
2897        if ($have_snapshot) {
2898                print " | " .
2899                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2900        }
2901        print "</td>" .
2902              "</tr>\n";
2903        my $parents = $co{'parents'};
2904        foreach my $par (@$parents) {
2905                print "<tr>" .
2906                      "<td>parent</td>" .
2907                      "<td class=\"sha1\">" .
2908                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2909                               class => "list"}, $par) .
2910                      "</td>" .
2911                      "<td class=\"link\">" .
2912                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2913                      " | " .
2914                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2915                      "</td>" .
2916                      "</tr>\n";
2917        }
2918        print "</table>".
2919              "</div>\n";
2920
2921        print "<div class=\"page_body\">\n";
2922        git_print_log($co{'comment'});
2923        print "</div>\n";
2924
2925        git_difftree_body(\@difftree, $hash, $parent);
2926
2927        git_footer_html();
2928}
2929
2930sub git_blobdiff {
2931        my $format = shift || 'html';
2932
2933        my $fd;
2934        my @difftree;
2935        my %diffinfo;
2936        my $expires;
2937
2938        # preparing $fd and %diffinfo for git_patchset_body
2939        # new style URI
2940        if (defined $hash_base && defined $hash_parent_base) {
2941                if (defined $file_name) {
2942                        # read raw output
2943                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2944                                "--", $file_name
2945                                or die_error(undef, "Open git-diff-tree failed");
2946                        @difftree = map { chomp; $_ } <$fd>;
2947                        close $fd
2948                                or die_error(undef, "Reading git-diff-tree failed");
2949                        @difftree
2950                                or die_error('404 Not Found', "Blob diff not found");
2951
2952                } elsif (defined $hash &&
2953                         $hash =~ /[0-9a-fA-F]{40}/) {
2954                        # try to find filename from $hash
2955
2956                        # read filtered raw output
2957                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2958                                or die_error(undef, "Open git-diff-tree failed");
2959                        @difftree =
2960                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2961                                # $hash == to_id
2962                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2963                                map { chomp; $_ } <$fd>;
2964                        close $fd
2965                                or die_error(undef, "Reading git-diff-tree failed");
2966                        @difftree
2967                                or die_error('404 Not Found', "Blob diff not found");
2968
2969                } else {
2970                        die_error('404 Not Found', "Missing one of the blob diff parameters");
2971                }
2972
2973                if (@difftree > 1) {
2974                        die_error('404 Not Found', "Ambiguous blob diff specification");
2975                }
2976
2977                %diffinfo = parse_difftree_raw_line($difftree[0]);
2978                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2979                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2980
2981                $hash_parent ||= $diffinfo{'from_id'};
2982                $hash        ||= $diffinfo{'to_id'};
2983
2984                # non-textual hash id's can be cached
2985                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2986                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2987                        $expires = '+1d';
2988                }
2989
2990                # open patch output
2991                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2992                        '-p', $hash_parent_base, $hash_base,
2993                        "--", $file_name
2994                        or die_error(undef, "Open git-diff-tree failed");
2995        }
2996
2997        # old/legacy style URI
2998        if (!%diffinfo && # if new style URI failed
2999            defined $hash && defined $hash_parent) {
3000                # fake git-diff-tree raw output
3001                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3002                $diffinfo{'from_id'} = $hash_parent;
3003                $diffinfo{'to_id'}   = $hash;
3004                if (defined $file_name) {
3005                        if (defined $file_parent) {
3006                                $diffinfo{'status'} = '2';
3007                                $diffinfo{'from_file'} = $file_parent;
3008                                $diffinfo{'to_file'}   = $file_name;
3009                        } else { # assume not renamed
3010                                $diffinfo{'status'} = '1';
3011                                $diffinfo{'from_file'} = $file_name;
3012                                $diffinfo{'to_file'}   = $file_name;
3013                        }
3014                } else { # no filename given
3015                        $diffinfo{'status'} = '2';
3016                        $diffinfo{'from_file'} = $hash_parent;
3017                        $diffinfo{'to_file'}   = $hash;
3018                }
3019
3020                # non-textual hash id's can be cached
3021                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3022                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3023                        $expires = '+1d';
3024                }
3025
3026                # open patch output
3027                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3028                        or die_error(undef, "Open git-diff failed");
3029        } else  {
3030                die_error('404 Not Found', "Missing one of the blob diff parameters")
3031                        unless %diffinfo;
3032        }
3033
3034        # header
3035        if ($format eq 'html') {
3036                my $formats_nav =
3037                        $cgi->a({-href => href(action=>"blobdiff_plain",
3038                                               hash=>$hash, hash_parent=>$hash_parent,
3039                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3040                                               file_name=>$file_name, file_parent=>$file_parent)},
3041                                "plain");
3042                git_header_html(undef, $expires);
3043                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3044                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3045                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3046                } else {
3047                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3048                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3049                }
3050                if (defined $file_name) {
3051                        git_print_page_path($file_name, "blob", $hash_base);
3052                } else {
3053                        print "<div class=\"page_path\"></div>\n";
3054                }
3055
3056        } elsif ($format eq 'plain') {
3057                print $cgi->header(
3058                        -type => 'text/plain',
3059                        -charset => 'utf-8',
3060                        -expires => $expires,
3061                        -content_disposition => qq(inline; filename="${file_name}.patch"));
3062
3063                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3064
3065        } else {
3066                die_error(undef, "Unknown blobdiff format");
3067        }
3068
3069        # patch
3070        if ($format eq 'html') {
3071                print "<div class=\"page_body\">\n";
3072
3073                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3074                close $fd;
3075
3076                print "</div>\n"; # class="page_body"
3077                git_footer_html();
3078
3079        } else {
3080                while (my $line = <$fd>) {
3081                        $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3082                        $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3083
3084                        print $line;
3085
3086                        last if $line =~ m!^\+\+\+!;
3087                }
3088                local $/ = undef;
3089                print <$fd>;
3090                close $fd;
3091        }
3092}
3093
3094sub git_blobdiff_plain {
3095        git_blobdiff('plain');
3096}
3097
3098sub git_commitdiff {
3099        my $format = shift || 'html';
3100        my %co = parse_commit($hash);
3101        if (!%co) {
3102                die_error(undef, "Unknown commit object");
3103        }
3104        if (!defined $hash_parent) {
3105                $hash_parent = $co{'parent'} || '--root';
3106        }
3107
3108        # read commitdiff
3109        my $fd;
3110        my @difftree;
3111        if ($format eq 'html') {
3112                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3113                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3114                        or die_error(undef, "Open git-diff-tree failed");
3115
3116                while (chomp(my $line = <$fd>)) {
3117                        # empty line ends raw part of diff-tree output
3118                        last unless $line;
3119                        push @difftree, $line;
3120                }
3121
3122        } elsif ($format eq 'plain') {
3123                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3124                        '-p', $hash_parent, $hash
3125                        or die_error(undef, "Open git-diff-tree failed");
3126
3127        } else {
3128                die_error(undef, "Unknown commitdiff format");
3129        }
3130
3131        # non-textual hash id's can be cached
3132        my $expires;
3133        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3134                $expires = "+1d";
3135        }
3136
3137        # write commit message
3138        if ($format eq 'html') {
3139                my $refs = git_get_references();
3140                my $ref = format_ref_marker($refs, $co{'id'});
3141                my $formats_nav =
3142                        $cgi->a({-href => href(action=>"commitdiff_plain",
3143                                               hash=>$hash, hash_parent=>$hash_parent)},
3144                                "plain");
3145
3146                git_header_html(undef, $expires);
3147                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3148                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3149                git_print_authorship(\%co);
3150                print "<div class=\"page_body\">\n";
3151                print "<div class=\"log\">\n";
3152                git_print_simplified_log($co{'comment'}, 1); # skip title
3153                print "</div>\n"; # class="log"
3154
3155        } elsif ($format eq 'plain') {
3156                my $refs = git_get_references("tags");
3157                my $tagname = git_get_rev_name_tags($hash);
3158                my $filename = basename($project) . "-$hash.patch";
3159
3160                print $cgi->header(
3161                        -type => 'text/plain',
3162                        -charset => 'utf-8',
3163                        -expires => $expires,
3164                        -content_disposition => qq(inline; filename="$filename"));
3165                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3166                print <<TEXT;
3167From: $co{'author'}
3168Date: $ad{'rfc2822'} ($ad{'tz_local'})
3169Subject: $co{'title'}
3170TEXT
3171                print "X-Git-Tag: $tagname\n" if $tagname;
3172                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3173
3174                foreach my $line (@{$co{'comment'}}) {
3175                        print "$line\n";
3176                }
3177                print "---\n\n";
3178        }
3179
3180        # write patch
3181        if ($format eq 'html') {
3182                git_difftree_body(\@difftree, $hash, $hash_parent);
3183                print "<br/>\n";
3184
3185                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3186                close $fd;
3187                print "</div>\n"; # class="page_body"
3188                git_footer_html();
3189
3190        } elsif ($format eq 'plain') {
3191                local $/ = undef;
3192                print <$fd>;
3193                close $fd
3194                        or print "Reading git-diff-tree failed\n";
3195        }
3196}
3197
3198sub git_commitdiff_plain {
3199        git_commitdiff('plain');
3200}
3201
3202sub git_history {
3203        if (!defined $hash_base) {
3204                $hash_base = git_get_head_hash($project);
3205        }
3206        if (!defined $page) {
3207                $page = 0;
3208        }
3209        my $ftype;
3210        my %co = parse_commit($hash_base);
3211        if (!%co) {
3212                die_error(undef, "Unknown commit object");
3213        }
3214
3215        my $refs = git_get_references();
3216        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3217
3218        if (!defined $hash && defined $file_name) {
3219                $hash = git_get_hash_by_path($hash_base, $file_name);
3220        }
3221        if (defined $hash) {
3222                $ftype = git_get_type($hash);
3223        }
3224
3225        open my $fd, "-|",
3226                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3227                        or die_error(undef, "Open git-rev-list-failed");
3228        my @revlist = map { chomp; $_ } <$fd>;
3229        close $fd
3230                or die_error(undef, "Reading git-rev-list failed");
3231
3232        my $paging_nav = '';
3233        if ($page > 0) {
3234                $paging_nav .=
3235                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3236                                               file_name=>$file_name)},
3237                                "first");
3238                $paging_nav .= " &sdot; " .
3239                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3240                                               file_name=>$file_name, page=>$page-1),
3241                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3242        } else {
3243                $paging_nav .= "first";
3244                $paging_nav .= " &sdot; prev";
3245        }
3246        if ($#revlist >= (100 * ($page+1)-1)) {
3247                $paging_nav .= " &sdot; " .
3248                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3249                                               file_name=>$file_name, page=>$page+1),
3250                                 -accesskey => "n", -title => "Alt-n"}, "next");
3251        } else {
3252                $paging_nav .= " &sdot; next";
3253        }
3254        my $next_link = '';
3255        if ($#revlist >= (100 * ($page+1)-1)) {
3256                $next_link =
3257                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3258                                               file_name=>$file_name, page=>$page+1),
3259                                 -title => "Alt-n"}, "next");
3260        }
3261
3262        git_header_html();
3263        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3264        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3265        git_print_page_path($file_name, $ftype, $hash_base);
3266
3267        git_history_body(\@revlist, ($page * 100), $#revlist,
3268                         $refs, $hash_base, $ftype, $next_link);
3269
3270        git_footer_html();
3271}
3272
3273sub git_search {
3274        if (!defined $searchtext) {
3275                die_error(undef, "Text field empty");
3276        }
3277        if (!defined $hash) {
3278                $hash = git_get_head_hash($project);
3279        }
3280        my %co = parse_commit($hash);
3281        if (!%co) {
3282                die_error(undef, "Unknown commit object");
3283        }
3284
3285        my $commit_search = 1;
3286        my $author_search = 0;
3287        my $committer_search = 0;
3288        my $pickaxe_search = 0;
3289        if ($searchtext =~ s/^author\\://i) {
3290                $author_search = 1;
3291        } elsif ($searchtext =~ s/^committer\\://i) {
3292                $committer_search = 1;
3293        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3294                $commit_search = 0;
3295                $pickaxe_search = 1;
3296
3297                # pickaxe may take all resources of your box and run for several minutes
3298                # with every query - so decide by yourself how public you make this feature
3299                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3300                if (!$have_pickaxe) {
3301                        die_error('403 Permission denied', "Permission denied");
3302                }
3303        }
3304        git_header_html();
3305        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3306        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3307
3308        print "<table cellspacing=\"0\">\n";
3309        my $alternate = 0;
3310        if ($commit_search) {
3311                $/ = "\0";
3312                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3313                while (my $commit_text = <$fd>) {
3314                        if (!grep m/$searchtext/i, $commit_text) {
3315                                next;
3316                        }
3317                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3318                                next;
3319                        }
3320                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3321                                next;
3322                        }
3323                        my @commit_lines = split "\n", $commit_text;
3324                        my %co = parse_commit(undef, \@commit_lines);
3325                        if (!%co) {
3326                                next;
3327                        }
3328                        if ($alternate) {
3329                                print "<tr class=\"dark\">\n";
3330                        } else {
3331                                print "<tr class=\"light\">\n";
3332                        }
3333                        $alternate ^= 1;
3334                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3335                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3336                              "<td>" .
3337                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3338                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3339                        my $comment = $co{'comment'};
3340                        foreach my $line (@$comment) {
3341                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3342                                        my $lead = esc_html($1) || "";
3343                                        $lead = chop_str($lead, 30, 10);
3344                                        my $match = esc_html($2) || "";
3345                                        my $trail = esc_html($3) || "";
3346                                        $trail = chop_str($trail, 30, 10);
3347                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3348                                        print chop_str($text, 80, 5) . "<br/>\n";
3349                                }
3350                        }
3351                        print "</td>\n" .
3352                              "<td class=\"link\">" .
3353                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3354                              " | " .
3355                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3356                        print "</td>\n" .
3357                              "</tr>\n";
3358                }
3359                close $fd;
3360        }
3361
3362        if ($pickaxe_search) {
3363                $/ = "\n";
3364                my $git_command = git_cmd_str();
3365                open my $fd, "-|", "$git_command rev-list $hash | " .
3366                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3367                undef %co;
3368                my @files;
3369                while (my $line = <$fd>) {
3370                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3371                                my %set;
3372                                $set{'file'} = $6;
3373                                $set{'from_id'} = $3;
3374                                $set{'to_id'} = $4;
3375                                $set{'id'} = $set{'to_id'};
3376                                if ($set{'id'} =~ m/0{40}/) {
3377                                        $set{'id'} = $set{'from_id'};
3378                                }
3379                                if ($set{'id'} =~ m/0{40}/) {
3380                                        next;
3381                                }
3382                                push @files, \%set;
3383                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3384                                if (%co) {
3385                                        if ($alternate) {
3386                                                print "<tr class=\"dark\">\n";
3387                                        } else {
3388                                                print "<tr class=\"light\">\n";
3389                                        }
3390                                        $alternate ^= 1;
3391                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3392                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3393                                              "<td>" .
3394                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3395                                                      -class => "list subject"},
3396                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3397                                        while (my $setref = shift @files) {
3398                                                my %set = %$setref;
3399                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3400                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3401                                                              -class => "list"},
3402                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3403                                                      "<br/>\n";
3404                                        }
3405                                        print "</td>\n" .
3406                                              "<td class=\"link\">" .
3407                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3408                                              " | " .
3409                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3410                                        print "</td>\n" .
3411                                              "</tr>\n";
3412                                }
3413                                %co = parse_commit($1);
3414                        }
3415                }
3416                close $fd;
3417        }
3418        print "</table>\n";
3419        git_footer_html();
3420}
3421
3422sub git_shortlog {
3423        my $head = git_get_head_hash($project);
3424        if (!defined $hash) {
3425                $hash = $head;
3426        }
3427        if (!defined $page) {
3428                $page = 0;
3429        }
3430        my $refs = git_get_references();
3431
3432        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3433        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3434                or die_error(undef, "Open git-rev-list failed");
3435        my @revlist = map { chomp; $_ } <$fd>;
3436        close $fd;
3437
3438        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3439        my $next_link = '';
3440        if ($#revlist >= (100 * ($page+1)-1)) {
3441                $next_link =
3442                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3443                                 -title => "Alt-n"}, "next");
3444        }
3445
3446
3447        git_header_html();
3448        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3449        git_print_header_div('summary', $project);
3450
3451        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3452
3453        git_footer_html();
3454}
3455
3456## ......................................................................
3457## feeds (RSS, OPML)
3458
3459sub git_rss {
3460        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3461        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3462                or die_error(undef, "Open git-rev-list failed");
3463        my @revlist = map { chomp; $_ } <$fd>;
3464        close $fd or die_error(undef, "Reading git-rev-list failed");
3465        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3466        print <<XML;
3467<?xml version="1.0" encoding="utf-8"?>
3468<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3469<channel>
3470<title>$project $my_uri $my_url</title>
3471<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3472<description>$project log</description>
3473<language>en</language>
3474XML
3475
3476        for (my $i = 0; $i <= $#revlist; $i++) {
3477                my $commit = $revlist[$i];
3478                my %co = parse_commit($commit);
3479                # we read 150, we always show 30 and the ones more recent than 48 hours
3480                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3481                        last;
3482                }
3483                my %cd = parse_date($co{'committer_epoch'});
3484                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3485                        $co{'parent'}, $co{'id'}
3486                        or next;
3487                my @difftree = map { chomp; $_ } <$fd>;
3488                close $fd
3489                        or next;
3490                print "<item>\n" .
3491                      "<title>" .
3492                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3493                      "</title>\n" .
3494                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3495                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3496                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3497                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3498                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3499                      "<content:encoded>" .
3500                      "<![CDATA[\n";
3501                my $comment = $co{'comment'};
3502                foreach my $line (@$comment) {
3503                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3504                        print "$line<br/>\n";
3505                }
3506                print "<br/>\n";
3507                foreach my $line (@difftree) {
3508                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3509                                next;
3510                        }
3511                        my $file = validate_input(unquote($7));
3512                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3513                        print "$file<br/>\n";
3514                }
3515                print "]]>\n" .
3516                      "</content:encoded>\n" .
3517                      "</item>\n";
3518        }
3519        print "</channel></rss>";
3520}
3521
3522sub git_opml {
3523        my @list = git_get_projects_list();
3524
3525        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3526        print <<XML;
3527<?xml version="1.0" encoding="utf-8"?>
3528<opml version="1.0">
3529<head>
3530  <title>$site_name Git OPML Export</title>
3531</head>
3532<body>
3533<outline text="git RSS feeds">
3534XML
3535
3536        foreach my $pr (@list) {
3537                my %proj = %$pr;
3538                my $head = git_get_head_hash($proj{'path'});
3539                if (!defined $head) {
3540                        next;
3541                }
3542                $git_dir = "$projectroot/$proj{'path'}";
3543                my %co = parse_commit($head);
3544                if (!%co) {
3545                        next;
3546                }
3547
3548                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3549                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3550                my $html = "$my_url?p=$proj{'path'};a=summary";
3551                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3552        }
3553        print <<XML;
3554</outline>
3555</body>
3556</opml>
3557XML
3558}