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

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44# html text to include at home page
  45our $home_text = "++GITWEB_HOMETEXT++";
  46
  47# URI of default stylesheet
  48our $stylesheet = "++GITWEB_CSS++";
  49# URI of GIT logo
  50our $logo = "++GITWEB_LOGO++";
  51# URI of GIT favicon, assumed to be image/png type
  52our $favicon = "++GITWEB_FAVICON++";
  53
  54# source of projects list
  55our $projects_list = "++GITWEB_LIST++";
  56
  57# show repository only if this file exists
  58# (only effective if this variable evaluates to true)
  59our $export_ok = "++GITWEB_EXPORT_OK++";
  60
  61# only allow viewing of repositories also shown on the overview page
  62our $strict_export = "++GITWEB_STRICT_EXPORT++";
  63
  64# list of git base URLs used for URL to where fetch project from,
  65# i.e. full URL is "$git_base_url/$project"
  66our @git_base_url_list = ("++GITWEB_BASE_URL++");
  67
  68# default blob_plain mimetype and default charset for text/plain blob
  69our $default_blob_plain_mimetype = 'text/plain';
  70our $default_text_plain_charset  = undef;
  71
  72# file to use for guessing MIME types before trying /etc/mime.types
  73# (relative to the current git repository)
  74our $mimetypes_file = undef;
  75
  76# You define site-wide feature defaults here; override them with
  77# $GITWEB_CONFIG as necessary.
  78our %feature = (
  79        # feature => {
  80        #       'sub' => feature-sub (subroutine),
  81        #       'override' => allow-override (boolean),
  82        #       'default' => [ default options...] (array reference)}
  83        #
  84        # if feature is overridable (it means that allow-override has true value,
  85        # then feature-sub will be called with default options as parameters;
  86        # return value of feature-sub indicates if to enable specified feature
  87        #
  88        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90        'blame' => {
  91                'sub' => \&feature_blame,
  92                'override' => 0,
  93                'default' => [0]},
  94
  95        'snapshot' => {
  96                'sub' => \&feature_snapshot,
  97                'override' => 0,
  98                #         => [content-encoding, suffix, program]
  99                'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101        'pickaxe' => {
 102                'sub' => \&feature_pickaxe,
 103                'override' => 0,
 104                'default' => [1]},
 105);
 106
 107sub gitweb_check_feature {
 108        my ($name) = @_;
 109        return undef unless exists $feature{$name};
 110        my ($sub, $override, @defaults) = (
 111                $feature{$name}{'sub'},
 112                $feature{$name}{'override'},
 113                @{$feature{$name}{'default'}});
 114        if (!$override) { return @defaults; }
 115        return $sub->(@defaults);
 116}
 117
 118# To enable system wide have in $GITWEB_CONFIG
 119# $feature{'blame'}{'default'} = [1];
 120# To have project specific config enable override in $GITWEB_CONFIG
 121# $feature{'blame'}{'override'} = 1;
 122# and in project config gitweb.blame = 0|1;
 123
 124sub feature_blame {
 125        my ($val) = git_get_project_config('blame', '--bool');
 126
 127        if ($val eq 'true') {
 128                return 1;
 129        } elsif ($val eq 'false') {
 130                return 0;
 131        }
 132
 133        return $_[0];
 134}
 135
 136# To disable system wide have in $GITWEB_CONFIG
 137# $feature{'snapshot'}{'default'} = [undef];
 138# To have project specific config enable override in $GITWEB_CONFIG
 139# $feature{'blame'}{'override'} = 1;
 140# and in project config  gitweb.snapshot = none|gzip|bzip2
 141
 142sub feature_snapshot {
 143        my ($ctype, $suffix, $command) = @_;
 144
 145        my ($val) = git_get_project_config('snapshot');
 146
 147        if ($val eq 'gzip') {
 148                return ('x-gzip', 'gz', 'gzip');
 149        } elsif ($val eq 'bzip2') {
 150                return ('x-bzip2', 'bz2', 'bzip2');
 151        } elsif ($val eq 'none') {
 152                return ();
 153        }
 154
 155        return ($ctype, $suffix, $command);
 156}
 157
 158# To enable system wide have in $GITWEB_CONFIG
 159# $feature{'pickaxe'}{'default'} = [1];
 160# To have project specific config enable override in $GITWEB_CONFIG
 161# $feature{'pickaxe'}{'override'} = 1;
 162# and in project config gitweb.pickaxe = 0|1;
 163
 164sub feature_pickaxe {
 165        my ($val) = git_get_project_config('pickaxe', '--bool');
 166
 167        if ($val eq 'true') {
 168                return (1);
 169        } elsif ($val eq 'false') {
 170                return (0);
 171        }
 172
 173        return ($_[0]);
 174}
 175
 176# rename detection options for git-diff and git-diff-tree
 177# - default is '-M', with the cost proportional to
 178#   (number of removed files) * (number of new files).
 179# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 180#   (number of changed files + number of removed files) * (number of new files)
 181# - even more costly is '-C', '--find-copies-harder' with cost
 182#   (number of files in the original tree) * (number of new files)
 183# - one might want to include '-B' option, e.g. '-B', '-M'
 184our @diff_opts = ('-M'); # taken from git_commit
 185
 186our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 187do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 188
 189# version of the core git binary
 190our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 191
 192$projects_list ||= $projectroot;
 193
 194# ======================================================================
 195# input validation and dispatch
 196our $action = $cgi->param('a');
 197if (defined $action) {
 198        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 199                die_error(undef, "Invalid action parameter");
 200        }
 201}
 202
 203our $project = $cgi->param('p');
 204if (defined $project) {
 205        if (!validate_input($project) ||
 206            !(-d "$projectroot/$project") ||
 207            !(-e "$projectroot/$project/HEAD") ||
 208            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 209            ($strict_export && !project_in_list($project))) {
 210                undef $project;
 211                die_error(undef, "No such project");
 212        }
 213}
 214
 215our $file_name = $cgi->param('f');
 216if (defined $file_name) {
 217        if (!validate_input($file_name)) {
 218                die_error(undef, "Invalid file parameter");
 219        }
 220}
 221
 222our $file_parent = $cgi->param('fp');
 223if (defined $file_parent) {
 224        if (!validate_input($file_parent)) {
 225                die_error(undef, "Invalid file parent parameter");
 226        }
 227}
 228
 229our $hash = $cgi->param('h');
 230if (defined $hash) {
 231        if (!validate_input($hash)) {
 232                die_error(undef, "Invalid hash parameter");
 233        }
 234}
 235
 236our $hash_parent = $cgi->param('hp');
 237if (defined $hash_parent) {
 238        if (!validate_input($hash_parent)) {
 239                die_error(undef, "Invalid hash parent parameter");
 240        }
 241}
 242
 243our $hash_base = $cgi->param('hb');
 244if (defined $hash_base) {
 245        if (!validate_input($hash_base)) {
 246                die_error(undef, "Invalid hash base parameter");
 247        }
 248}
 249
 250our $hash_parent_base = $cgi->param('hpb');
 251if (defined $hash_parent_base) {
 252        if (!validate_input($hash_parent_base)) {
 253                die_error(undef, "Invalid hash parent base parameter");
 254        }
 255}
 256
 257our $page = $cgi->param('pg');
 258if (defined $page) {
 259        if ($page =~ m/[^0-9]/) {
 260                die_error(undef, "Invalid page parameter");
 261        }
 262}
 263
 264our $searchtext = $cgi->param('s');
 265if (defined $searchtext) {
 266        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 267                die_error(undef, "Invalid search parameter");
 268        }
 269        $searchtext = quotemeta $searchtext;
 270}
 271
 272# now read PATH_INFO and use it as alternative to parameters
 273sub evaluate_path_info {
 274        return if defined $project;
 275        my $path_info = $ENV{"PATH_INFO"};
 276        return if !$path_info;
 277        $path_info =~ s,^/+,,;
 278        return if !$path_info;
 279        # find which part of PATH_INFO is project
 280        $project = $path_info;
 281        $project =~ s,/+$,,;
 282        while ($project && !-e "$projectroot/$project/HEAD") {
 283                $project =~ s,/*[^/]*$,,;
 284        }
 285        # validate project
 286        $project = validate_input($project);
 287        if (!$project ||
 288            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 289            ($strict_export && !project_in_list($project))) {
 290                undef $project;
 291                return;
 292        }
 293        # do not change any parameters if an action is given using the query string
 294        return if $action;
 295        $path_info =~ s,^$project/*,,;
 296        my ($refname, $pathname) = split(/:/, $path_info, 2);
 297        if (defined $pathname) {
 298                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 299                # we could use git_get_type(branch:pathname), but it needs $git_dir
 300                $pathname =~ s,^/+,,;
 301                if (!$pathname || substr($pathname, -1) eq "/") {
 302                        $action  ||= "tree";
 303                } else {
 304                        $action  ||= "blob_plain";
 305                }
 306                $hash_base ||= validate_input($refname);
 307                $file_name ||= validate_input($pathname);
 308        } elsif (defined $refname) {
 309                # we got "project.git/branch"
 310                $action ||= "shortlog";
 311                $hash   ||= validate_input($refname);
 312        }
 313}
 314evaluate_path_info();
 315
 316# path to the current git repository
 317our $git_dir;
 318$git_dir = "$projectroot/$project" if $project;
 319
 320# dispatch
 321my %actions = (
 322        "blame" => \&git_blame2,
 323        "blobdiff" => \&git_blobdiff,
 324        "blobdiff_plain" => \&git_blobdiff_plain,
 325        "blob" => \&git_blob,
 326        "blob_plain" => \&git_blob_plain,
 327        "commitdiff" => \&git_commitdiff,
 328        "commitdiff_plain" => \&git_commitdiff_plain,
 329        "commit" => \&git_commit,
 330        "heads" => \&git_heads,
 331        "history" => \&git_history,
 332        "log" => \&git_log,
 333        "rss" => \&git_rss,
 334        "search" => \&git_search,
 335        "shortlog" => \&git_shortlog,
 336        "summary" => \&git_summary,
 337        "tag" => \&git_tag,
 338        "tags" => \&git_tags,
 339        "tree" => \&git_tree,
 340        "snapshot" => \&git_snapshot,
 341        # those below don't need $project
 342        "opml" => \&git_opml,
 343        "project_list" => \&git_project_list,
 344        "project_index" => \&git_project_index,
 345);
 346
 347if (defined $project) {
 348        $action ||= 'summary';
 349} else {
 350        $action ||= 'project_list';
 351}
 352if (!defined($actions{$action})) {
 353        die_error(undef, "Unknown action");
 354}
 355if ($action !~ m/^(opml|project_list|project_index)$/ &&
 356    !$project) {
 357        die_error(undef, "Project needed");
 358}
 359$actions{$action}->();
 360exit;
 361
 362## ======================================================================
 363## action links
 364
 365sub href(%) {
 366        my %params = @_;
 367
 368        my @mapping = (
 369                project => "p",
 370                action => "a",
 371                file_name => "f",
 372                file_parent => "fp",
 373                hash => "h",
 374                hash_parent => "hp",
 375                hash_base => "hb",
 376                hash_parent_base => "hpb",
 377                page => "pg",
 378                order => "o",
 379                searchtext => "s",
 380        );
 381        my %mapping = @mapping;
 382
 383        $params{'project'} = $project unless exists $params{'project'};
 384
 385        my @result = ();
 386        for (my $i = 0; $i < @mapping; $i += 2) {
 387                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 388                if (defined $params{$name}) {
 389                        push @result, $symbol . "=" . esc_param($params{$name});
 390                }
 391        }
 392        return "$my_uri?" . join(';', @result);
 393}
 394
 395
 396## ======================================================================
 397## validation, quoting/unquoting and escaping
 398
 399sub validate_input {
 400        my $input = shift;
 401
 402        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 403                return $input;
 404        }
 405        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 406                return undef;
 407        }
 408        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 409                return undef;
 410        }
 411        return $input;
 412}
 413
 414# quote unsafe chars, but keep the slash, even when it's not
 415# correct, but quoted slashes look too horrible in bookmarks
 416sub esc_param {
 417        my $str = shift;
 418        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 419        $str =~ s/\+/%2B/g;
 420        $str =~ s/ /\+/g;
 421        return $str;
 422}
 423
 424# replace invalid utf8 character with SUBSTITUTION sequence
 425sub esc_html {
 426        my $str = shift;
 427        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 428        $str = escapeHTML($str);
 429        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 430        return $str;
 431}
 432
 433# git may return quoted and escaped filenames
 434sub unquote {
 435        my $str = shift;
 436        if ($str =~ m/^"(.*)"$/) {
 437                $str = $1;
 438                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 439        }
 440        return $str;
 441}
 442
 443# escape tabs (convert tabs to spaces)
 444sub untabify {
 445        my $line = shift;
 446
 447        while ((my $pos = index($line, "\t")) != -1) {
 448                if (my $count = (8 - ($pos % 8))) {
 449                        my $spaces = ' ' x $count;
 450                        $line =~ s/\t/$spaces/;
 451                }
 452        }
 453
 454        return $line;
 455}
 456
 457sub project_in_list {
 458        my $project = shift;
 459        my @list = git_get_projects_list();
 460        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 461}
 462
 463## ----------------------------------------------------------------------
 464## HTML aware string manipulation
 465
 466sub chop_str {
 467        my $str = shift;
 468        my $len = shift;
 469        my $add_len = shift || 10;
 470
 471        # allow only $len chars, but don't cut a word if it would fit in $add_len
 472        # if it doesn't fit, cut it if it's still longer than the dots we would add
 473        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 474        my $body = $1;
 475        my $tail = $2;
 476        if (length($tail) > 4) {
 477                $tail = " ...";
 478                $body =~ s/&[^;]*$//; # remove chopped character entities
 479        }
 480        return "$body$tail";
 481}
 482
 483## ----------------------------------------------------------------------
 484## functions returning short strings
 485
 486# CSS class for given age value (in seconds)
 487sub age_class {
 488        my $age = shift;
 489
 490        if ($age < 60*60*2) {
 491                return "age0";
 492        } elsif ($age < 60*60*24*2) {
 493                return "age1";
 494        } else {
 495                return "age2";
 496        }
 497}
 498
 499# convert age in seconds to "nn units ago" string
 500sub age_string {
 501        my $age = shift;
 502        my $age_str;
 503
 504        if ($age > 60*60*24*365*2) {
 505                $age_str = (int $age/60/60/24/365);
 506                $age_str .= " years ago";
 507        } elsif ($age > 60*60*24*(365/12)*2) {
 508                $age_str = int $age/60/60/24/(365/12);
 509                $age_str .= " months ago";
 510        } elsif ($age > 60*60*24*7*2) {
 511                $age_str = int $age/60/60/24/7;
 512                $age_str .= " weeks ago";
 513        } elsif ($age > 60*60*24*2) {
 514                $age_str = int $age/60/60/24;
 515                $age_str .= " days ago";
 516        } elsif ($age > 60*60*2) {
 517                $age_str = int $age/60/60;
 518                $age_str .= " hours ago";
 519        } elsif ($age > 60*2) {
 520                $age_str = int $age/60;
 521                $age_str .= " min ago";
 522        } elsif ($age > 2) {
 523                $age_str = int $age;
 524                $age_str .= " sec ago";
 525        } else {
 526                $age_str .= " right now";
 527        }
 528        return $age_str;
 529}
 530
 531# convert file mode in octal to symbolic file mode string
 532sub mode_str {
 533        my $mode = oct shift;
 534
 535        if (S_ISDIR($mode & S_IFMT)) {
 536                return 'drwxr-xr-x';
 537        } elsif (S_ISLNK($mode)) {
 538                return 'lrwxrwxrwx';
 539        } elsif (S_ISREG($mode)) {
 540                # git cares only about the executable bit
 541                if ($mode & S_IXUSR) {
 542                        return '-rwxr-xr-x';
 543                } else {
 544                        return '-rw-r--r--';
 545                };
 546        } else {
 547                return '----------';
 548        }
 549}
 550
 551# convert file mode in octal to file type string
 552sub file_type {
 553        my $mode = shift;
 554
 555        if ($mode !~ m/^[0-7]+$/) {
 556                return $mode;
 557        } else {
 558                $mode = oct $mode;
 559        }
 560
 561        if (S_ISDIR($mode & S_IFMT)) {
 562                return "directory";
 563        } elsif (S_ISLNK($mode)) {
 564                return "symlink";
 565        } elsif (S_ISREG($mode)) {
 566                return "file";
 567        } else {
 568                return "unknown";
 569        }
 570}
 571
 572## ----------------------------------------------------------------------
 573## functions returning short HTML fragments, or transforming HTML fragments
 574## which don't beling to other sections
 575
 576# format line of commit message or tag comment
 577sub format_log_line_html {
 578        my $line = shift;
 579
 580        $line = esc_html($line);
 581        $line =~ s/ /&nbsp;/g;
 582        if ($line =~ m/([0-9a-fA-F]{40})/) {
 583                my $hash_text = $1;
 584                if (git_get_type($hash_text) eq "commit") {
 585                        my $link =
 586                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 587                                        -class => "text"}, $hash_text);
 588                        $line =~ s/$hash_text/$link/;
 589                }
 590        }
 591        return $line;
 592}
 593
 594# format marker of refs pointing to given object
 595sub format_ref_marker {
 596        my ($refs, $id) = @_;
 597        my $markers = '';
 598
 599        if (defined $refs->{$id}) {
 600                foreach my $ref (@{$refs->{$id}}) {
 601                        my ($type, $name) = qw();
 602                        # e.g. tags/v2.6.11 or heads/next
 603                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 604                                $type = $1;
 605                                $name = $2;
 606                        } else {
 607                                $type = "ref";
 608                                $name = $ref;
 609                        }
 610
 611                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 612                }
 613        }
 614
 615        if ($markers) {
 616                return ' <span class="refs">'. $markers . '</span>';
 617        } else {
 618                return "";
 619        }
 620}
 621
 622# format, perhaps shortened and with markers, title line
 623sub format_subject_html {
 624        my ($long, $short, $href, $extra) = @_;
 625        $extra = '' unless defined($extra);
 626
 627        if (length($short) < length($long)) {
 628                return $cgi->a({-href => $href, -class => "list subject",
 629                                -title => $long},
 630                       esc_html($short) . $extra);
 631        } else {
 632                return $cgi->a({-href => $href, -class => "list subject"},
 633                       esc_html($long)  . $extra);
 634        }
 635}
 636
 637sub format_diff_line {
 638        my $line = shift;
 639        my $char = substr($line, 0, 1);
 640        my $diff_class = "";
 641
 642        chomp $line;
 643
 644        if ($char eq '+') {
 645                $diff_class = " add";
 646        } elsif ($char eq "-") {
 647                $diff_class = " rem";
 648        } elsif ($char eq "@") {
 649                $diff_class = " chunk_header";
 650        } elsif ($char eq "\\") {
 651                $diff_class = " incomplete";
 652        }
 653        $line = untabify($line);
 654        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 655}
 656
 657## ----------------------------------------------------------------------
 658## git utility subroutines, invoking git commands
 659
 660# returns path to the core git executable and the --git-dir parameter as list
 661sub git_cmd {
 662        return $GIT, '--git-dir='.$git_dir;
 663}
 664
 665# returns path to the core git executable and the --git-dir parameter as string
 666sub git_cmd_str {
 667        return join(' ', git_cmd());
 668}
 669
 670# get HEAD ref of given project as hash
 671sub git_get_head_hash {
 672        my $project = shift;
 673        my $o_git_dir = $git_dir;
 674        my $retval = undef;
 675        $git_dir = "$projectroot/$project";
 676        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 677                my $head = <$fd>;
 678                close $fd;
 679                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 680                        $retval = $1;
 681                }
 682        }
 683        if (defined $o_git_dir) {
 684                $git_dir = $o_git_dir;
 685        }
 686        return $retval;
 687}
 688
 689# get type of given object
 690sub git_get_type {
 691        my $hash = shift;
 692
 693        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 694        my $type = <$fd>;
 695        close $fd or return;
 696        chomp $type;
 697        return $type;
 698}
 699
 700sub git_get_project_config {
 701        my ($key, $type) = @_;
 702
 703        return unless ($key);
 704        $key =~ s/^gitweb\.//;
 705        return if ($key =~ m/\W/);
 706
 707        my @x = (git_cmd(), 'repo-config');
 708        if (defined $type) { push @x, $type; }
 709        push @x, "--get";
 710        push @x, "gitweb.$key";
 711        my $val = qx(@x);
 712        chomp $val;
 713        return ($val);
 714}
 715
 716# get hash of given path at given ref
 717sub git_get_hash_by_path {
 718        my $base = shift;
 719        my $path = shift || return undef;
 720
 721        my $tree = $base;
 722
 723        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 724                or die_error(undef, "Open git-ls-tree failed");
 725        my $line = <$fd>;
 726        close $fd or return undef;
 727
 728        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 729        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 730        return $3;
 731}
 732
 733## ......................................................................
 734## git utility functions, directly accessing git repository
 735
 736sub git_get_project_description {
 737        my $path = shift;
 738
 739        open my $fd, "$projectroot/$path/description" or return undef;
 740        my $descr = <$fd>;
 741        close $fd;
 742        chomp $descr;
 743        return $descr;
 744}
 745
 746sub git_get_project_url_list {
 747        my $path = shift;
 748
 749        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 750        my @git_project_url_list = map { chomp; $_ } <$fd>;
 751        close $fd;
 752
 753        return wantarray ? @git_project_url_list : \@git_project_url_list;
 754}
 755
 756sub git_get_projects_list {
 757        my @list;
 758
 759        if (-d $projects_list) {
 760                # search in directory
 761                my $dir = $projects_list;
 762                my $pfxlen = length("$dir");
 763
 764                File::Find::find({
 765                        follow_fast => 1, # follow symbolic links
 766                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 767                        wanted => sub {
 768                                # skip project-list toplevel, if we get it.
 769                                return if (m!^[/.]$!);
 770                                # only directories can be git repositories
 771                                return unless (-d $_);
 772
 773                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 774                                # we check related file in $projectroot
 775                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 776                                    -e "$projectroot/$subdir/$export_ok")) {
 777                                        push @list, { path => $subdir };
 778                                        $File::Find::prune = 1;
 779                                }
 780                        },
 781                }, "$dir");
 782
 783        } elsif (-f $projects_list) {
 784                # read from file(url-encoded):
 785                # 'git%2Fgit.git Linus+Torvalds'
 786                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 787                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 788                open my ($fd), $projects_list or return undef;
 789                while (my $line = <$fd>) {
 790                        chomp $line;
 791                        my ($path, $owner) = split ' ', $line;
 792                        $path = unescape($path);
 793                        $owner = unescape($owner);
 794                        if (!defined $path) {
 795                                next;
 796                        }
 797                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 798                            -e "$projectroot/$path/$export_ok")) {
 799                                my $pr = {
 800                                        path => $path,
 801                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 802                                };
 803                                push @list, $pr
 804                        }
 805                }
 806                close $fd;
 807        }
 808        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 809        return @list;
 810}
 811
 812sub git_get_project_owner {
 813        my $project = shift;
 814        my $owner;
 815
 816        return undef unless $project;
 817
 818        # read from file (url-encoded):
 819        # 'git%2Fgit.git Linus+Torvalds'
 820        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 821        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 822        if (-f $projects_list) {
 823                open (my $fd , $projects_list);
 824                while (my $line = <$fd>) {
 825                        chomp $line;
 826                        my ($pr, $ow) = split ' ', $line;
 827                        $pr = unescape($pr);
 828                        $ow = unescape($ow);
 829                        if ($pr eq $project) {
 830                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 831                                last;
 832                        }
 833                }
 834                close $fd;
 835        }
 836        if (!defined $owner) {
 837                $owner = get_file_owner("$projectroot/$project");
 838        }
 839
 840        return $owner;
 841}
 842
 843sub git_get_references {
 844        my $type = shift || "";
 845        my %refs;
 846        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 847        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 848        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 849                or return;
 850
 851        while (my $line = <$fd>) {
 852                chomp $line;
 853                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 854                        if (defined $refs{$1}) {
 855                                push @{$refs{$1}}, $2;
 856                        } else {
 857                                $refs{$1} = [ $2 ];
 858                        }
 859                }
 860        }
 861        close $fd or return;
 862        return \%refs;
 863}
 864
 865sub git_get_rev_name_tags {
 866        my $hash = shift || return undef;
 867
 868        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 869                or return;
 870        my $name_rev = <$fd>;
 871        close $fd;
 872
 873        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 874                return $1;
 875        } else {
 876                # catches also '$hash undefined' output
 877                return undef;
 878        }
 879}
 880
 881## ----------------------------------------------------------------------
 882## parse to hash functions
 883
 884sub parse_date {
 885        my $epoch = shift;
 886        my $tz = shift || "-0000";
 887
 888        my %date;
 889        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 890        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 891        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 892        $date{'hour'} = $hour;
 893        $date{'minute'} = $min;
 894        $date{'mday'} = $mday;
 895        $date{'day'} = $days[$wday];
 896        $date{'month'} = $months[$mon];
 897        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 898                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 899        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 900                             $mday, $months[$mon], $hour ,$min;
 901
 902        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 903        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 904        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 905        $date{'hour_local'} = $hour;
 906        $date{'minute_local'} = $min;
 907        $date{'tz_local'} = $tz;
 908        return %date;
 909}
 910
 911sub parse_tag {
 912        my $tag_id = shift;
 913        my %tag;
 914        my @comment;
 915
 916        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 917        $tag{'id'} = $tag_id;
 918        while (my $line = <$fd>) {
 919                chomp $line;
 920                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 921                        $tag{'object'} = $1;
 922                } elsif ($line =~ m/^type (.+)$/) {
 923                        $tag{'type'} = $1;
 924                } elsif ($line =~ m/^tag (.+)$/) {
 925                        $tag{'name'} = $1;
 926                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 927                        $tag{'author'} = $1;
 928                        $tag{'epoch'} = $2;
 929                        $tag{'tz'} = $3;
 930                } elsif ($line =~ m/--BEGIN/) {
 931                        push @comment, $line;
 932                        last;
 933                } elsif ($line eq "") {
 934                        last;
 935                }
 936        }
 937        push @comment, <$fd>;
 938        $tag{'comment'} = \@comment;
 939        close $fd or return;
 940        if (!defined $tag{'name'}) {
 941                return
 942        };
 943        return %tag
 944}
 945
 946sub parse_commit {
 947        my $commit_id = shift;
 948        my $commit_text = shift;
 949
 950        my @commit_lines;
 951        my %co;
 952
 953        if (defined $commit_text) {
 954                @commit_lines = @$commit_text;
 955        } else {
 956                $/ = "\0";
 957                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 958                        or return;
 959                @commit_lines = split '\n', <$fd>;
 960                close $fd or return;
 961                $/ = "\n";
 962                pop @commit_lines;
 963        }
 964        my $header = shift @commit_lines;
 965        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 966                return;
 967        }
 968        ($co{'id'}, my @parents) = split ' ', $header;
 969        $co{'parents'} = \@parents;
 970        $co{'parent'} = $parents[0];
 971        while (my $line = shift @commit_lines) {
 972                last if $line eq "\n";
 973                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 974                        $co{'tree'} = $1;
 975                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 976                        $co{'author'} = $1;
 977                        $co{'author_epoch'} = $2;
 978                        $co{'author_tz'} = $3;
 979                        if ($co{'author'} =~ m/^([^<]+) </) {
 980                                $co{'author_name'} = $1;
 981                        } else {
 982                                $co{'author_name'} = $co{'author'};
 983                        }
 984                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 985                        $co{'committer'} = $1;
 986                        $co{'committer_epoch'} = $2;
 987                        $co{'committer_tz'} = $3;
 988                        $co{'committer_name'} = $co{'committer'};
 989                        $co{'committer_name'} =~ s/ <.*//;
 990                }
 991        }
 992        if (!defined $co{'tree'}) {
 993                return;
 994        };
 995
 996        foreach my $title (@commit_lines) {
 997                $title =~ s/^    //;
 998                if ($title ne "") {
 999                        $co{'title'} = chop_str($title, 80, 5);
1000                        # remove leading stuff of merges to make the interesting part visible
1001                        if (length($title) > 50) {
1002                                $title =~ s/^Automatic //;
1003                                $title =~ s/^merge (of|with) /Merge ... /i;
1004                                if (length($title) > 50) {
1005                                        $title =~ s/(http|rsync):\/\///;
1006                                }
1007                                if (length($title) > 50) {
1008                                        $title =~ s/(master|www|rsync)\.//;
1009                                }
1010                                if (length($title) > 50) {
1011                                        $title =~ s/kernel.org:?//;
1012                                }
1013                                if (length($title) > 50) {
1014                                        $title =~ s/\/pub\/scm//;
1015                                }
1016                        }
1017                        $co{'title_short'} = chop_str($title, 50, 5);
1018                        last;
1019                }
1020        }
1021        # remove added spaces
1022        foreach my $line (@commit_lines) {
1023                $line =~ s/^    //;
1024        }
1025        $co{'comment'} = \@commit_lines;
1026
1027        my $age = time - $co{'committer_epoch'};
1028        $co{'age'} = $age;
1029        $co{'age_string'} = age_string($age);
1030        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1031        if ($age > 60*60*24*7*2) {
1032                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1033                $co{'age_string_age'} = $co{'age_string'};
1034        } else {
1035                $co{'age_string_date'} = $co{'age_string'};
1036                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1037        }
1038        return %co;
1039}
1040
1041# parse ref from ref_file, given by ref_id, with given type
1042sub parse_ref {
1043        my $ref_file = shift;
1044        my $ref_id = shift;
1045        my $type = shift || git_get_type($ref_id);
1046        my %ref_item;
1047
1048        $ref_item{'type'} = $type;
1049        $ref_item{'id'} = $ref_id;
1050        $ref_item{'epoch'} = 0;
1051        $ref_item{'age'} = "unknown";
1052        if ($type eq "tag") {
1053                my %tag = parse_tag($ref_id);
1054                $ref_item{'comment'} = $tag{'comment'};
1055                if ($tag{'type'} eq "commit") {
1056                        my %co = parse_commit($tag{'object'});
1057                        $ref_item{'epoch'} = $co{'committer_epoch'};
1058                        $ref_item{'age'} = $co{'age_string'};
1059                } elsif (defined($tag{'epoch'})) {
1060                        my $age = time - $tag{'epoch'};
1061                        $ref_item{'epoch'} = $tag{'epoch'};
1062                        $ref_item{'age'} = age_string($age);
1063                }
1064                $ref_item{'reftype'} = $tag{'type'};
1065                $ref_item{'name'} = $tag{'name'};
1066                $ref_item{'refid'} = $tag{'object'};
1067        } elsif ($type eq "commit"){
1068                my %co = parse_commit($ref_id);
1069                $ref_item{'reftype'} = "commit";
1070                $ref_item{'name'} = $ref_file;
1071                $ref_item{'title'} = $co{'title'};
1072                $ref_item{'refid'} = $ref_id;
1073                $ref_item{'epoch'} = $co{'committer_epoch'};
1074                $ref_item{'age'} = $co{'age_string'};
1075        } else {
1076                $ref_item{'reftype'} = $type;
1077                $ref_item{'name'} = $ref_file;
1078                $ref_item{'refid'} = $ref_id;
1079        }
1080
1081        return %ref_item;
1082}
1083
1084# parse line of git-diff-tree "raw" output
1085sub parse_difftree_raw_line {
1086        my $line = shift;
1087        my %res;
1088
1089        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1090        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1091        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1092                $res{'from_mode'} = $1;
1093                $res{'to_mode'} = $2;
1094                $res{'from_id'} = $3;
1095                $res{'to_id'} = $4;
1096                $res{'status'} = $5;
1097                $res{'similarity'} = $6;
1098                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1099                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1100                } else {
1101                        $res{'file'} = unquote($7);
1102                }
1103        }
1104        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1105        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1106                $res{'commit'} = $1;
1107        }
1108
1109        return wantarray ? %res : \%res;
1110}
1111
1112# parse line of git-ls-tree output
1113sub parse_ls_tree_line ($;%) {
1114        my $line = shift;
1115        my %opts = @_;
1116        my %res;
1117
1118        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1119        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1120
1121        $res{'mode'} = $1;
1122        $res{'type'} = $2;
1123        $res{'hash'} = $3;
1124        if ($opts{'-z'}) {
1125                $res{'name'} = $4;
1126        } else {
1127                $res{'name'} = unquote($4);
1128        }
1129
1130        return wantarray ? %res : \%res;
1131}
1132
1133## ......................................................................
1134## parse to array of hashes functions
1135
1136sub git_get_refs_list {
1137        my $type = shift || "";
1138        my %refs;
1139        my @reflist;
1140
1141        my @refs;
1142        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1143                or return;
1144        while (my $line = <$fd>) {
1145                chomp $line;
1146                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1147                        if (defined $refs{$1}) {
1148                                push @{$refs{$1}}, $2;
1149                        } else {
1150                                $refs{$1} = [ $2 ];
1151                        }
1152
1153                        if (! $4) { # unpeeled, direct reference
1154                                push @refs, { hash => $1, name => $3 }; # without type
1155                        } elsif ($3 eq $refs[-1]{'name'}) {
1156                                # most likely a tag is followed by its peeled
1157                                # (deref) one, and when that happens we know the
1158                                # previous one was of type 'tag'.
1159                                $refs[-1]{'type'} = "tag";
1160                        }
1161                }
1162        }
1163        close $fd;
1164
1165        foreach my $ref (@refs) {
1166                my $ref_file = $ref->{'name'};
1167                my $ref_id   = $ref->{'hash'};
1168
1169                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1170                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1171
1172                push @reflist, \%ref_item;
1173        }
1174        # sort refs by age
1175        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1176        return (\@reflist, \%refs);
1177}
1178
1179## ----------------------------------------------------------------------
1180## filesystem-related functions
1181
1182sub get_file_owner {
1183        my $path = shift;
1184
1185        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1186        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1187        if (!defined $gcos) {
1188                return undef;
1189        }
1190        my $owner = $gcos;
1191        $owner =~ s/[,;].*$//;
1192        return decode("utf8", $owner, Encode::FB_DEFAULT);
1193}
1194
1195## ......................................................................
1196## mimetype related functions
1197
1198sub mimetype_guess_file {
1199        my $filename = shift;
1200        my $mimemap = shift;
1201        -r $mimemap or return undef;
1202
1203        my %mimemap;
1204        open(MIME, $mimemap) or return undef;
1205        while (<MIME>) {
1206                next if m/^#/; # skip comments
1207                my ($mime, $exts) = split(/\t+/);
1208                if (defined $exts) {
1209                        my @exts = split(/\s+/, $exts);
1210                        foreach my $ext (@exts) {
1211                                $mimemap{$ext} = $mime;
1212                        }
1213                }
1214        }
1215        close(MIME);
1216
1217        $filename =~ /\.([^.]*)$/;
1218        return $mimemap{$1};
1219}
1220
1221sub mimetype_guess {
1222        my $filename = shift;
1223        my $mime;
1224        $filename =~ /\./ or return undef;
1225
1226        if ($mimetypes_file) {
1227                my $file = $mimetypes_file;
1228                if ($file !~ m!^/!) { # if it is relative path
1229                        # it is relative to project
1230                        $file = "$projectroot/$project/$file";
1231                }
1232                $mime = mimetype_guess_file($filename, $file);
1233        }
1234        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1235        return $mime;
1236}
1237
1238sub blob_mimetype {
1239        my $fd = shift;
1240        my $filename = shift;
1241
1242        if ($filename) {
1243                my $mime = mimetype_guess($filename);
1244                $mime and return $mime;
1245        }
1246
1247        # just in case
1248        return $default_blob_plain_mimetype unless $fd;
1249
1250        if (-T $fd) {
1251                return 'text/plain' .
1252                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1253        } elsif (! $filename) {
1254                return 'application/octet-stream';
1255        } elsif ($filename =~ m/\.png$/i) {
1256                return 'image/png';
1257        } elsif ($filename =~ m/\.gif$/i) {
1258                return 'image/gif';
1259        } elsif ($filename =~ m/\.jpe?g$/i) {
1260                return 'image/jpeg';
1261        } else {
1262                return 'application/octet-stream';
1263        }
1264}
1265
1266## ======================================================================
1267## functions printing HTML: header, footer, error page
1268
1269sub git_header_html {
1270        my $status = shift || "200 OK";
1271        my $expires = shift;
1272
1273        my $title = "$site_name git";
1274        if (defined $project) {
1275                $title .= " - $project";
1276                if (defined $action) {
1277                        $title .= "/$action";
1278                        if (defined $file_name) {
1279                                $title .= " - $file_name";
1280                                if ($action eq "tree" && $file_name !~ m|/$|) {
1281                                        $title .= "/";
1282                                }
1283                        }
1284                }
1285        }
1286        my $content_type;
1287        # require explicit support from the UA if we are to send the page as
1288        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1289        # we have to do this because MSIE sometimes globs '*/*', pretending to
1290        # support xhtml+xml but choking when it gets what it asked for.
1291        if (defined $cgi->http('HTTP_ACCEPT') &&
1292            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1293            $cgi->Accept('application/xhtml+xml') != 0) {
1294                $content_type = 'application/xhtml+xml';
1295        } else {
1296                $content_type = 'text/html';
1297        }
1298        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1299                           -status=> $status, -expires => $expires);
1300        print <<EOF;
1301<?xml version="1.0" encoding="utf-8"?>
1302<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1303<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1304<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1305<!-- git core binaries version $git_version -->
1306<head>
1307<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1308<meta name="generator" content="gitweb/$version git/$git_version"/>
1309<meta name="robots" content="index, nofollow"/>
1310<title>$title</title>
1311<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1312EOF
1313        if (defined $project) {
1314                printf('<link rel="alternate" title="%s log" '.
1315                       'href="%s" type="application/rss+xml"/>'."\n",
1316                       esc_param($project), href(action=>"rss"));
1317        } else {
1318                printf('<link rel="alternate" title="%s projects list" '.
1319                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1320                       $site_name, href(project=>undef, action=>"project_index"));
1321                printf('<link rel="alternate" title="%s projects logs" '.
1322                       'href="%s" type="text/x-opml"/>'."\n",
1323                       $site_name, href(project=>undef, action=>"opml"));
1324        }
1325        if (defined $favicon) {
1326                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1327        }
1328
1329        print "</head>\n" .
1330              "<body>\n" .
1331              "<div class=\"page_header\">\n" .
1332              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1333              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1334              "</a>\n";
1335        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1336        if (defined $project) {
1337                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1338                if (defined $action) {
1339                        print " / $action";
1340                }
1341                print "\n";
1342                if (!defined $searchtext) {
1343                        $searchtext = "";
1344                }
1345                my $search_hash;
1346                if (defined $hash_base) {
1347                        $search_hash = $hash_base;
1348                } elsif (defined $hash) {
1349                        $search_hash = $hash;
1350                } else {
1351                        $search_hash = "HEAD";
1352                }
1353                $cgi->param("a", "search");
1354                $cgi->param("h", $search_hash);
1355                print $cgi->startform(-method => "get", -action => $my_uri) .
1356                      "<div class=\"search\">\n" .
1357                      $cgi->hidden(-name => "p") . "\n" .
1358                      $cgi->hidden(-name => "a") . "\n" .
1359                      $cgi->hidden(-name => "h") . "\n" .
1360                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1361                      "</div>" .
1362                      $cgi->end_form() . "\n";
1363        }
1364        print "</div>\n";
1365}
1366
1367sub git_footer_html {
1368        print "<div class=\"page_footer\">\n";
1369        if (defined $project) {
1370                my $descr = git_get_project_description($project);
1371                if (defined $descr) {
1372                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1373                }
1374                print $cgi->a({-href => href(action=>"rss"),
1375                              -class => "rss_logo"}, "RSS") . "\n";
1376        } else {
1377                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1378                              -class => "rss_logo"}, "OPML") . " ";
1379                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1380                              -class => "rss_logo"}, "TXT") . "\n";
1381        }
1382        print "</div>\n" .
1383              "</body>\n" .
1384              "</html>";
1385}
1386
1387sub die_error {
1388        my $status = shift || "403 Forbidden";
1389        my $error = shift || "Malformed query, file missing or permission denied";
1390
1391        git_header_html($status);
1392        print <<EOF;
1393<div class="page_body">
1394<br /><br />
1395$status - $error
1396<br />
1397</div>
1398EOF
1399        git_footer_html();
1400        exit;
1401}
1402
1403## ----------------------------------------------------------------------
1404## functions printing or outputting HTML: navigation
1405
1406sub git_print_page_nav {
1407        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1408        $extra = '' if !defined $extra; # pager or formats
1409
1410        my @navs = qw(summary shortlog log commit commitdiff tree);
1411        if ($suppress) {
1412                @navs = grep { $_ ne $suppress } @navs;
1413        }
1414
1415        my %arg = map { $_ => {action=>$_} } @navs;
1416        if (defined $head) {
1417                for (qw(commit commitdiff)) {
1418                        $arg{$_}{hash} = $head;
1419                }
1420                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1421                        for (qw(shortlog log)) {
1422                                $arg{$_}{hash} = $head;
1423                        }
1424                }
1425        }
1426        $arg{tree}{hash} = $treehead if defined $treehead;
1427        $arg{tree}{hash_base} = $treebase if defined $treebase;
1428
1429        print "<div class=\"page_nav\">\n" .
1430                (join " | ",
1431                 map { $_ eq $current ?
1432                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1433                 } @navs);
1434        print "<br/>\n$extra<br/>\n" .
1435              "</div>\n";
1436}
1437
1438sub format_paging_nav {
1439        my ($action, $hash, $head, $page, $nrevs) = @_;
1440        my $paging_nav;
1441
1442
1443        if ($hash ne $head || $page) {
1444                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1445        } else {
1446                $paging_nav .= "HEAD";
1447        }
1448
1449        if ($page > 0) {
1450                $paging_nav .= " &sdot; " .
1451                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1452                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1453        } else {
1454                $paging_nav .= " &sdot; prev";
1455        }
1456
1457        if ($nrevs >= (100 * ($page+1)-1)) {
1458                $paging_nav .= " &sdot; " .
1459                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1460                                 -accesskey => "n", -title => "Alt-n"}, "next");
1461        } else {
1462                $paging_nav .= " &sdot; next";
1463        }
1464
1465        return $paging_nav;
1466}
1467
1468## ......................................................................
1469## functions printing or outputting HTML: div
1470
1471sub git_print_header_div {
1472        my ($action, $title, $hash, $hash_base) = @_;
1473        my %args = ();
1474
1475        $args{action} = $action;
1476        $args{hash} = $hash if $hash;
1477        $args{hash_base} = $hash_base if $hash_base;
1478
1479        print "<div class=\"header\">\n" .
1480              $cgi->a({-href => href(%args), -class => "title"},
1481              $title ? $title : $action) .
1482              "\n</div>\n";
1483}
1484
1485#sub git_print_authorship (\%) {
1486sub git_print_authorship {
1487        my $co = shift;
1488
1489        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1490        print "<div class=\"author_date\">" .
1491              esc_html($co->{'author_name'}) .
1492              " [$ad{'rfc2822'}";
1493        if ($ad{'hour_local'} < 6) {
1494                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1495                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1496        } else {
1497                printf(" (%02d:%02d %s)",
1498                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1499        }
1500        print "]</div>\n";
1501}
1502
1503sub git_print_page_path {
1504        my $name = shift;
1505        my $type = shift;
1506        my $hb = shift;
1507
1508        if (!defined $name) {
1509                print "<div class=\"page_path\">/</div>\n";
1510        } else {
1511                my @dirname = split '/', $name;
1512                my $basename = pop @dirname;
1513                my $fullname = '';
1514
1515                print "<div class=\"page_path\">";
1516                foreach my $dir (@dirname) {
1517                        $fullname .= $dir . '/';
1518                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1519                                                     hash_base=>$hb),
1520                                      -title => $fullname}, esc_html($dir));
1521                        print "/";
1522                }
1523                if (defined $type && $type eq 'blob') {
1524                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1525                                                     hash_base=>$hb),
1526                                      -title => $name}, esc_html($basename));
1527                } elsif (defined $type && $type eq 'tree') {
1528                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1529                                                     hash_base=>$hb),
1530                                      -title => $name}, esc_html($basename));
1531                        print "/";
1532                } else {
1533                        print esc_html($basename);
1534                }
1535                print "<br/></div>\n";
1536        }
1537}
1538
1539# sub git_print_log (\@;%) {
1540sub git_print_log ($;%) {
1541        my $log = shift;
1542        my %opts = @_;
1543
1544        if ($opts{'-remove_title'}) {
1545                # remove title, i.e. first line of log
1546                shift @$log;
1547        }
1548        # remove leading empty lines
1549        while (defined $log->[0] && $log->[0] eq "") {
1550                shift @$log;
1551        }
1552
1553        # print log
1554        my $signoff = 0;
1555        my $empty = 0;
1556        foreach my $line (@$log) {
1557                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1558                        $signoff = 1;
1559                        $empty = 0;
1560                        if (! $opts{'-remove_signoff'}) {
1561                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1562                                next;
1563                        } else {
1564                                # remove signoff lines
1565                                next;
1566                        }
1567                } else {
1568                        $signoff = 0;
1569                }
1570
1571                # print only one empty line
1572                # do not print empty line after signoff
1573                if ($line eq "") {
1574                        next if ($empty || $signoff);
1575                        $empty = 1;
1576                } else {
1577                        $empty = 0;
1578                }
1579
1580                print format_log_line_html($line) . "<br/>\n";
1581        }
1582
1583        if ($opts{'-final_empty_line'}) {
1584                # end with single empty line
1585                print "<br/>\n" unless $empty;
1586        }
1587}
1588
1589sub git_print_simplified_log {
1590        my $log = shift;
1591        my $remove_title = shift;
1592
1593        git_print_log($log,
1594                -final_empty_line=> 1,
1595                -remove_title => $remove_title);
1596}
1597
1598# print tree entry (row of git_tree), but without encompassing <tr> element
1599sub git_print_tree_entry {
1600        my ($t, $basedir, $hash_base, $have_blame) = @_;
1601
1602        my %base_key = ();
1603        $base_key{hash_base} = $hash_base if defined $hash_base;
1604
1605        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1606        if ($t->{'type'} eq "blob") {
1607                print "<td class=\"list\">" .
1608                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1609                                             file_name=>"$basedir$t->{'name'}", %base_key),
1610                              -class => "list"}, esc_html($t->{'name'})) .
1611                      "</td>\n" .
1612                      "<td class=\"link\">" .
1613                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1614                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1615                              "blob");
1616                if ($have_blame) {
1617                        print " | " .
1618                                $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1619                                                       file_name=>"$basedir$t->{'name'}", %base_key)},
1620                                        "blame");
1621                }
1622                if (defined $hash_base) {
1623                        print " | " .
1624                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1625                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1626                                      "history");
1627                }
1628                print " | " .
1629                      $cgi->a({-href => href(action=>"blob_plain",
1630                                             hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1631                              "raw") .
1632                      "</td>\n";
1633
1634        } elsif ($t->{'type'} eq "tree") {
1635                print "<td class=\"list\">" .
1636                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1637                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1638                              esc_html($t->{'name'})) .
1639                      "</td>\n" .
1640                      "<td class=\"link\">" .
1641                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1642                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1643                              "tree");
1644                if (defined $hash_base) {
1645                        print " | " .
1646                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1647                                                     file_name=>"$basedir$t->{'name'}")},
1648                                      "history");
1649                }
1650                print "</td>\n";
1651        }
1652}
1653
1654## ......................................................................
1655## functions printing large fragments of HTML
1656
1657sub git_difftree_body {
1658        my ($difftree, $hash, $parent) = @_;
1659
1660        print "<div class=\"list_head\">\n";
1661        if ($#{$difftree} > 10) {
1662                print(($#{$difftree} + 1) . " files changed:\n");
1663        }
1664        print "</div>\n";
1665
1666        print "<table class=\"diff_tree\">\n";
1667        my $alternate = 0;
1668        my $patchno = 0;
1669        foreach my $line (@{$difftree}) {
1670                my %diff = parse_difftree_raw_line($line);
1671
1672                if ($alternate) {
1673                        print "<tr class=\"dark\">\n";
1674                } else {
1675                        print "<tr class=\"light\">\n";
1676                }
1677                $alternate ^= 1;
1678
1679                my ($to_mode_oct, $to_mode_str, $to_file_type);
1680                my ($from_mode_oct, $from_mode_str, $from_file_type);
1681                if ($diff{'to_mode'} ne ('0' x 6)) {
1682                        $to_mode_oct = oct $diff{'to_mode'};
1683                        if (S_ISREG($to_mode_oct)) { # only for regular file
1684                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1685                        }
1686                        $to_file_type = file_type($diff{'to_mode'});
1687                }
1688                if ($diff{'from_mode'} ne ('0' x 6)) {
1689                        $from_mode_oct = oct $diff{'from_mode'};
1690                        if (S_ISREG($to_mode_oct)) { # only for regular file
1691                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1692                        }
1693                        $from_file_type = file_type($diff{'from_mode'});
1694                }
1695
1696                if ($diff{'status'} eq "A") { # created
1697                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1698                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1699                        $mode_chng   .= "]</span>";
1700                        print "<td>" .
1701                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1702                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1703                                      -class => "list"}, esc_html($diff{'file'})) .
1704                              "</td>\n" .
1705                              "<td>$mode_chng</td>\n" .
1706                              "<td class=\"link\">" .
1707                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1708                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1709                                      "blob");
1710                        if ($action eq 'commitdiff') {
1711                                # link to patch
1712                                $patchno++;
1713                                print " | " .
1714                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1715                        }
1716                        print "</td>\n";
1717
1718                } elsif ($diff{'status'} eq "D") { # deleted
1719                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1720                        print "<td>" .
1721                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1722                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1723                                       -class => "list"}, esc_html($diff{'file'})) .
1724                              "</td>\n" .
1725                              "<td>$mode_chng</td>\n" .
1726                              "<td class=\"link\">" .
1727                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1728                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1729                                      "blob") .
1730                              " | ";
1731                        if ($action eq 'commitdiff') {
1732                                # link to patch
1733                                $patchno++;
1734                                print " | " .
1735                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1736                        }
1737                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1738                                                     file_name=>$diff{'file'})},
1739                                      "history") .
1740                              "</td>\n";
1741
1742                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1743                        my $mode_chnge = "";
1744                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1745                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1746                                if ($from_file_type != $to_file_type) {
1747                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1748                                }
1749                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1750                                        if ($from_mode_str && $to_mode_str) {
1751                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1752                                        } elsif ($to_mode_str) {
1753                                                $mode_chnge .= " mode: $to_mode_str";
1754                                        }
1755                                }
1756                                $mode_chnge .= "]</span>\n";
1757                        }
1758                        print "<td>";
1759                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1760                                print $cgi->a({-href => href(action=>"blobdiff",
1761                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1762                                                             hash_base=>$hash, hash_parent_base=>$parent,
1763                                                             file_name=>$diff{'file'}),
1764                                              -class => "list"}, esc_html($diff{'file'}));
1765                        } else { # only mode changed
1766                                print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1767                                                             hash_base=>$hash, file_name=>$diff{'file'}),
1768                                              -class => "list"}, esc_html($diff{'file'}));
1769                        }
1770                        print "</td>\n" .
1771                              "<td>$mode_chnge</td>\n" .
1772                              "<td class=\"link\">" .
1773                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1774                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1775                                      "blob");
1776                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1777                                if ($action eq 'commitdiff') {
1778                                        # link to patch
1779                                        $patchno++;
1780                                        print " | " .
1781                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1782                                } else {
1783                                        print " | " .
1784                                                $cgi->a({-href => href(action=>"blobdiff",
1785                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1786                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1787                                                                       file_name=>$diff{'file'})},
1788                                                        "diff");
1789                                }
1790                        }
1791                        print " | " .
1792                                $cgi->a({-href => href(action=>"history",
1793                                                       hash_base=>$hash, file_name=>$diff{'file'})},
1794                                        "history");
1795                        print "</td>\n";
1796
1797                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1798                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1799                        my $nstatus = $status_name{$diff{'status'}};
1800                        my $mode_chng = "";
1801                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1802                                # mode also for directories, so we cannot use $to_mode_str
1803                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1804                        }
1805                        print "<td>" .
1806                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1807                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1808                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1809                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1810                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1811                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1812                                      -class => "list"}, esc_html($diff{'from_file'})) .
1813                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1814                              "<td class=\"link\">" .
1815                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1816                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1817                                      "blob");
1818                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1819                                if ($action eq 'commitdiff') {
1820                                        # link to patch
1821                                        $patchno++;
1822                                        print " | " .
1823                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1824                                } else {
1825                                        print " | " .
1826                                                $cgi->a({-href => href(action=>"blobdiff",
1827                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1828                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1829                                                                       file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1830                                                        "diff");
1831                                }
1832                        }
1833                        print "</td>\n";
1834
1835                } # we should not encounter Unmerged (U) or Unknown (X) status
1836                print "</tr>\n";
1837        }
1838        print "</table>\n";
1839}
1840
1841sub git_patchset_body {
1842        my ($fd, $difftree, $hash, $hash_parent) = @_;
1843
1844        my $patch_idx = 0;
1845        my $in_header = 0;
1846        my $patch_found = 0;
1847        my $diffinfo;
1848
1849        print "<div class=\"patchset\">\n";
1850
1851        LINE:
1852        while (my $patch_line = <$fd>) {
1853                chomp $patch_line;
1854
1855                if ($patch_line =~ m/^diff /) { # "git diff" header
1856                        # beginning of patch (in patchset)
1857                        if ($patch_found) {
1858                                # close previous patch
1859                                print "</div>\n"; # class="patch"
1860                        } else {
1861                                # first patch in patchset
1862                                $patch_found = 1;
1863                        }
1864                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1865
1866                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1867                                $diffinfo = $difftree->[$patch_idx];
1868                        } else {
1869                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1870                        }
1871                        $patch_idx++;
1872
1873                        # for now, no extended header, hence we skip empty patches
1874                        # companion to  next LINE if $in_header;
1875                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1876                                $in_header = 1;
1877                                next LINE;
1878                        }
1879
1880                        if ($diffinfo->{'status'} eq "A") { # added
1881                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1882                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1883                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1884                                              $diffinfo->{'to_id'}) . "(new)" .
1885                                      "</div>\n"; # class="diff_info"
1886
1887                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1888                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1889                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1890                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1891                                              $diffinfo->{'from_id'}) . "(deleted)" .
1892                                      "</div>\n"; # class="diff_info"
1893
1894                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1895                                 $diffinfo->{'status'} eq "C" || # copied
1896                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1897                                print "<div class=\"diff_info\">" .
1898                                      file_type($diffinfo->{'from_mode'}) . ":" .
1899                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1900                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1901                                              $diffinfo->{'from_id'}) .
1902                                      " -> " .
1903                                      file_type($diffinfo->{'to_mode'}) . ":" .
1904                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1905                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1906                                              $diffinfo->{'to_id'});
1907                                print "</div>\n"; # class="diff_info"
1908
1909                        } else { # modified, mode changed, ...
1910                                print "<div class=\"diff_info\">" .
1911                                      file_type($diffinfo->{'from_mode'}) . ":" .
1912                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1913                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1914                                              $diffinfo->{'from_id'}) .
1915                                      " -> " .
1916                                      file_type($diffinfo->{'to_mode'}) . ":" .
1917                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1918                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1919                                              $diffinfo->{'to_id'});
1920                                print "</div>\n"; # class="diff_info"
1921                        }
1922
1923                        #print "<div class=\"diff extended_header\">\n";
1924                        $in_header = 1;
1925                        next LINE;
1926                } # start of patch in patchset
1927
1928
1929                if ($in_header && $patch_line =~ m/^---/) {
1930                        #print "</div>\n"; # class="diff extended_header"
1931                        $in_header = 0;
1932
1933                        my $file = $diffinfo->{'from_file'};
1934                        $file  ||= $diffinfo->{'file'};
1935                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1936                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1937                                        -class => "list"}, esc_html($file));
1938                        $patch_line =~ s|a/.*$|a/$file|g;
1939                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1940
1941                        $patch_line = <$fd>;
1942                        chomp $patch_line;
1943
1944                        #$patch_line =~ m/^+++/;
1945                        $file    = $diffinfo->{'to_file'};
1946                        $file  ||= $diffinfo->{'file'};
1947                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1948                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1949                                        -class => "list"}, esc_html($file));
1950                        $patch_line =~ s|b/.*|b/$file|g;
1951                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1952
1953                        next LINE;
1954                }
1955                next LINE if $in_header;
1956
1957                print format_diff_line($patch_line);
1958        }
1959        print "</div>\n" if $patch_found; # class="patch"
1960
1961        print "</div>\n"; # class="patchset"
1962}
1963
1964# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1965
1966sub git_shortlog_body {
1967        # uses global variable $project
1968        my ($revlist, $from, $to, $refs, $extra) = @_;
1969
1970        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1971        my $have_snapshot = (defined $ctype && defined $suffix);
1972
1973        $from = 0 unless defined $from;
1974        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1975
1976        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1977        my $alternate = 0;
1978        for (my $i = $from; $i <= $to; $i++) {
1979                my $commit = $revlist->[$i];
1980                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1981                my $ref = format_ref_marker($refs, $commit);
1982                my %co = parse_commit($commit);
1983                if ($alternate) {
1984                        print "<tr class=\"dark\">\n";
1985                } else {
1986                        print "<tr class=\"light\">\n";
1987                }
1988                $alternate ^= 1;
1989                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1990                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1991                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1992                      "<td>";
1993                print format_subject_html($co{'title'}, $co{'title_short'},
1994                                          href(action=>"commit", hash=>$commit), $ref);
1995                print "</td>\n" .
1996                      "<td class=\"link\">" .
1997                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1998                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1999                if ($have_snapshot) {
2000                        print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2001                }
2002                print "</td>\n" .
2003                      "</tr>\n";
2004        }
2005        if (defined $extra) {
2006                print "<tr>\n" .
2007                      "<td colspan=\"4\">$extra</td>\n" .
2008                      "</tr>\n";
2009        }
2010        print "</table>\n";
2011}
2012
2013sub git_history_body {
2014        # Warning: assumes constant type (blob or tree) during history
2015        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2016
2017        $from = 0 unless defined $from;
2018        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2019
2020        print "<table class=\"history\" cellspacing=\"0\">\n";
2021        my $alternate = 0;
2022        for (my $i = $from; $i <= $to; $i++) {
2023                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2024                        next;
2025                }
2026
2027                my $commit = $1;
2028                my %co = parse_commit($commit);
2029                if (!%co) {
2030                        next;
2031                }
2032
2033                my $ref = format_ref_marker($refs, $commit);
2034
2035                if ($alternate) {
2036                        print "<tr class=\"dark\">\n";
2037                } else {
2038                        print "<tr class=\"light\">\n";
2039                }
2040                $alternate ^= 1;
2041                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2042                      # shortlog uses      chop_str($co{'author_name'}, 10)
2043                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2044                      "<td>";
2045                # originally git_history used chop_str($co{'title'}, 50)
2046                print format_subject_html($co{'title'}, $co{'title_short'},
2047                                          href(action=>"commit", hash=>$commit), $ref);
2048                print "</td>\n" .
2049                      "<td class=\"link\">" .
2050                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2051                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2052                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2053
2054                if ($ftype eq 'blob') {
2055                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2056                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2057                        if (defined $blob_current && defined $blob_parent &&
2058                                        $blob_current ne $blob_parent) {
2059                                print " | " .
2060                                        $cgi->a({-href => href(action=>"blobdiff",
2061                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2062                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2063                                                               file_name=>$file_name)},
2064                                                "diff to current");
2065                        }
2066                }
2067                print "</td>\n" .
2068                      "</tr>\n";
2069        }
2070        if (defined $extra) {
2071                print "<tr>\n" .
2072                      "<td colspan=\"4\">$extra</td>\n" .
2073                      "</tr>\n";
2074        }
2075        print "</table>\n";
2076}
2077
2078sub git_tags_body {
2079        # uses global variable $project
2080        my ($taglist, $from, $to, $extra) = @_;
2081        $from = 0 unless defined $from;
2082        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2083
2084        print "<table class=\"tags\" cellspacing=\"0\">\n";
2085        my $alternate = 0;
2086        for (my $i = $from; $i <= $to; $i++) {
2087                my $entry = $taglist->[$i];
2088                my %tag = %$entry;
2089                my $comment_lines = $tag{'comment'};
2090                my $comment = shift @$comment_lines;
2091                my $comment_short;
2092                if (defined $comment) {
2093                        $comment_short = chop_str($comment, 30, 5);
2094                }
2095                if ($alternate) {
2096                        print "<tr class=\"dark\">\n";
2097                } else {
2098                        print "<tr class=\"light\">\n";
2099                }
2100                $alternate ^= 1;
2101                print "<td><i>$tag{'age'}</i></td>\n" .
2102                      "<td>" .
2103                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2104                               -class => "list name"}, esc_html($tag{'name'})) .
2105                      "</td>\n" .
2106                      "<td>";
2107                if (defined $comment) {
2108                        print format_subject_html($comment, $comment_short,
2109                                                  href(action=>"tag", hash=>$tag{'id'}));
2110                }
2111                print "</td>\n" .
2112                      "<td class=\"selflink\">";
2113                if ($tag{'type'} eq "tag") {
2114                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2115                } else {
2116                        print "&nbsp;";
2117                }
2118                print "</td>\n" .
2119                      "<td class=\"link\">" . " | " .
2120                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2121                if ($tag{'reftype'} eq "commit") {
2122                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2123                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2124                } elsif ($tag{'reftype'} eq "blob") {
2125                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2126                }
2127                print "</td>\n" .
2128                      "</tr>";
2129        }
2130        if (defined $extra) {
2131                print "<tr>\n" .
2132                      "<td colspan=\"5\">$extra</td>\n" .
2133                      "</tr>\n";
2134        }
2135        print "</table>\n";
2136}
2137
2138sub git_heads_body {
2139        # uses global variable $project
2140        my ($headlist, $head, $from, $to, $extra) = @_;
2141        $from = 0 unless defined $from;
2142        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2143
2144        print "<table class=\"heads\" cellspacing=\"0\">\n";
2145        my $alternate = 0;
2146        for (my $i = $from; $i <= $to; $i++) {
2147                my $entry = $headlist->[$i];
2148                my %tag = %$entry;
2149                my $curr = $tag{'id'} eq $head;
2150                if ($alternate) {
2151                        print "<tr class=\"dark\">\n";
2152                } else {
2153                        print "<tr class=\"light\">\n";
2154                }
2155                $alternate ^= 1;
2156                print "<td><i>$tag{'age'}</i></td>\n" .
2157                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2158                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2159                               -class => "list name"},esc_html($tag{'name'})) .
2160                      "</td>\n" .
2161                      "<td class=\"link\">" .
2162                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2163                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2164                      "</td>\n" .
2165                      "</tr>";
2166        }
2167        if (defined $extra) {
2168                print "<tr>\n" .
2169                      "<td colspan=\"3\">$extra</td>\n" .
2170                      "</tr>\n";
2171        }
2172        print "</table>\n";
2173}
2174
2175## ======================================================================
2176## ======================================================================
2177## actions
2178
2179sub git_project_list {
2180        my $order = $cgi->param('o');
2181        if (defined $order && $order !~ m/project|descr|owner|age/) {
2182                die_error(undef, "Unknown order parameter");
2183        }
2184
2185        my @list = git_get_projects_list();
2186        my @projects;
2187        if (!@list) {
2188                die_error(undef, "No projects found");
2189        }
2190        foreach my $pr (@list) {
2191                my $head = git_get_head_hash($pr->{'path'});
2192                if (!defined $head) {
2193                        next;
2194                }
2195                $git_dir = "$projectroot/$pr->{'path'}";
2196                my %co = parse_commit($head);
2197                if (!%co) {
2198                        next;
2199                }
2200                $pr->{'commit'} = \%co;
2201                if (!defined $pr->{'descr'}) {
2202                        my $descr = git_get_project_description($pr->{'path'}) || "";
2203                        $pr->{'descr'} = chop_str($descr, 25, 5);
2204                }
2205                if (!defined $pr->{'owner'}) {
2206                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2207                }
2208                push @projects, $pr;
2209        }
2210
2211        git_header_html();
2212        if (-f $home_text) {
2213                print "<div class=\"index_include\">\n";
2214                open (my $fd, $home_text);
2215                print <$fd>;
2216                close $fd;
2217                print "</div>\n";
2218        }
2219        print "<table class=\"project_list\">\n" .
2220              "<tr>\n";
2221        $order ||= "project";
2222        if ($order eq "project") {
2223                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2224                print "<th>Project</th>\n";
2225        } else {
2226                print "<th>" .
2227                      $cgi->a({-href => href(project=>undef, order=>'project'),
2228                               -class => "header"}, "Project") .
2229                      "</th>\n";
2230        }
2231        if ($order eq "descr") {
2232                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2233                print "<th>Description</th>\n";
2234        } else {
2235                print "<th>" .
2236                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2237                               -class => "header"}, "Description") .
2238                      "</th>\n";
2239        }
2240        if ($order eq "owner") {
2241                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2242                print "<th>Owner</th>\n";
2243        } else {
2244                print "<th>" .
2245                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2246                               -class => "header"}, "Owner") .
2247                      "</th>\n";
2248        }
2249        if ($order eq "age") {
2250                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2251                print "<th>Last Change</th>\n";
2252        } else {
2253                print "<th>" .
2254                      $cgi->a({-href => href(project=>undef, order=>'age'),
2255                               -class => "header"}, "Last Change") .
2256                      "</th>\n";
2257        }
2258        print "<th></th>\n" .
2259              "</tr>\n";
2260        my $alternate = 0;
2261        foreach my $pr (@projects) {
2262                if ($alternate) {
2263                        print "<tr class=\"dark\">\n";
2264                } else {
2265                        print "<tr class=\"light\">\n";
2266                }
2267                $alternate ^= 1;
2268                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2269                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2270                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2271                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2272                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2273                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2274                      "<td class=\"link\">" .
2275                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2276                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2277                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2278                      "</td>\n" .
2279                      "</tr>\n";
2280        }
2281        print "</table>\n";
2282        git_footer_html();
2283}
2284
2285sub git_project_index {
2286        my @projects = git_get_projects_list();
2287
2288        print $cgi->header(
2289                -type => 'text/plain',
2290                -charset => 'utf-8',
2291                -content_disposition => qq(inline; filename="index.aux"));
2292
2293        foreach my $pr (@projects) {
2294                if (!exists $pr->{'owner'}) {
2295                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2296                }
2297
2298                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2299                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2300                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2301                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2302                $path  =~ s/ /\+/g;
2303                $owner =~ s/ /\+/g;
2304
2305                print "$path $owner\n";
2306        }
2307}
2308
2309sub git_summary {
2310        my $descr = git_get_project_description($project) || "none";
2311        my $head = git_get_head_hash($project);
2312        my %co = parse_commit($head);
2313        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2314
2315        my $owner = git_get_project_owner($project);
2316
2317        my ($reflist, $refs) = git_get_refs_list();
2318
2319        my @taglist;
2320        my @headlist;
2321        foreach my $ref (@$reflist) {
2322                if ($ref->{'name'} =~ s!^heads/!!) {
2323                        push @headlist, $ref;
2324                } else {
2325                        $ref->{'name'} =~ s!^tags/!!;
2326                        push @taglist, $ref;
2327                }
2328        }
2329
2330        git_header_html();
2331        git_print_page_nav('summary','', $head);
2332
2333        print "<div class=\"title\">&nbsp;</div>\n";
2334        print "<table cellspacing=\"0\">\n" .
2335              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2336              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2337              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2338        # use per project git URL list in $projectroot/$project/cloneurl
2339        # or make project git URL from git base URL and project name
2340        my $url_tag = "URL";
2341        my @url_list = git_get_project_url_list($project);
2342        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2343        foreach my $git_url (@url_list) {
2344                next unless $git_url;
2345                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2346                $url_tag = "";
2347        }
2348        print "</table>\n";
2349
2350        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2351                git_get_head_hash($project)
2352                or die_error(undef, "Open git-rev-list failed");
2353        my @revlist = map { chomp; $_ } <$fd>;
2354        close $fd;
2355        git_print_header_div('shortlog');
2356        git_shortlog_body(\@revlist, 0, 15, $refs,
2357                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2358
2359        if (@taglist) {
2360                git_print_header_div('tags');
2361                git_tags_body(\@taglist, 0, 15,
2362                              $cgi->a({-href => href(action=>"tags")}, "..."));
2363        }
2364
2365        if (@headlist) {
2366                git_print_header_div('heads');
2367                git_heads_body(\@headlist, $head, 0, 15,
2368                               $cgi->a({-href => href(action=>"heads")}, "..."));
2369        }
2370
2371        git_footer_html();
2372}
2373
2374sub git_tag {
2375        my $head = git_get_head_hash($project);
2376        git_header_html();
2377        git_print_page_nav('','', $head,undef,$head);
2378        my %tag = parse_tag($hash);
2379        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2380        print "<div class=\"title_text\">\n" .
2381              "<table cellspacing=\"0\">\n" .
2382              "<tr>\n" .
2383              "<td>object</td>\n" .
2384              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2385                               $tag{'object'}) . "</td>\n" .
2386              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2387                                              $tag{'type'}) . "</td>\n" .
2388              "</tr>\n";
2389        if (defined($tag{'author'})) {
2390                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2391                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2392                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2393                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2394                        "</td></tr>\n";
2395        }
2396        print "</table>\n\n" .
2397              "</div>\n";
2398        print "<div class=\"page_body\">";
2399        my $comment = $tag{'comment'};
2400        foreach my $line (@$comment) {
2401                print esc_html($line) . "<br/>\n";
2402        }
2403        print "</div>\n";
2404        git_footer_html();
2405}
2406
2407sub git_blame2 {
2408        my $fd;
2409        my $ftype;
2410
2411        my ($have_blame) = gitweb_check_feature('blame');
2412        if (!$have_blame) {
2413                die_error('403 Permission denied', "Permission denied");
2414        }
2415        die_error('404 Not Found', "File name not defined") if (!$file_name);
2416        $hash_base ||= git_get_head_hash($project);
2417        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2418        my %co = parse_commit($hash_base)
2419                or die_error(undef, "Reading commit failed");
2420        if (!defined $hash) {
2421                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2422                        or die_error(undef, "Error looking up file");
2423        }
2424        $ftype = git_get_type($hash);
2425        if ($ftype !~ "blob") {
2426                die_error("400 Bad Request", "Object is not a blob");
2427        }
2428        open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2429                or die_error(undef, "Open git-blame failed");
2430        git_header_html();
2431        my $formats_nav =
2432                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2433                        "blob") .
2434                " | " .
2435                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2436                        "head");
2437        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2438        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2439        git_print_page_path($file_name, $ftype, $hash_base);
2440        my @rev_color = (qw(light2 dark2));
2441        my $num_colors = scalar(@rev_color);
2442        my $current_color = 0;
2443        my $last_rev;
2444        print <<HTML;
2445<div class="page_body">
2446<table class="blame">
2447<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2448HTML
2449        while (<$fd>) {
2450                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2451                my $full_rev = $1;
2452                my $rev = substr($full_rev, 0, 8);
2453                my $lineno = $2;
2454                my $data = $3;
2455
2456                if (!defined $last_rev) {
2457                        $last_rev = $full_rev;
2458                } elsif ($last_rev ne $full_rev) {
2459                        $last_rev = $full_rev;
2460                        $current_color = ++$current_color % $num_colors;
2461                }
2462                print "<tr class=\"$rev_color[$current_color]\">\n";
2463                print "<td class=\"sha1\">" .
2464                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2465                                esc_html($rev)) . "</td>\n";
2466                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2467                      esc_html($lineno) . "</a></td>\n";
2468                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2469                print "</tr>\n";
2470        }
2471        print "</table>\n";
2472        print "</div>";
2473        close $fd
2474                or print "Reading blob failed\n";
2475        git_footer_html();
2476}
2477
2478sub git_blame {
2479        my $fd;
2480
2481        my ($have_blame) = gitweb_check_feature('blame');
2482        if (!$have_blame) {
2483                die_error('403 Permission denied', "Permission denied");
2484        }
2485        die_error('404 Not Found', "File name not defined") if (!$file_name);
2486        $hash_base ||= git_get_head_hash($project);
2487        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2488        my %co = parse_commit($hash_base)
2489                or die_error(undef, "Reading commit failed");
2490        if (!defined $hash) {
2491                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2492                        or die_error(undef, "Error lookup file");
2493        }
2494        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2495                or die_error(undef, "Open git-annotate failed");
2496        git_header_html();
2497        my $formats_nav =
2498                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2499                        "blob") .
2500                " | " .
2501                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2502                        "head");
2503        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2504        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2505        git_print_page_path($file_name, 'blob', $hash_base);
2506        print "<div class=\"page_body\">\n";
2507        print <<HTML;
2508<table class="blame">
2509  <tr>
2510    <th>Commit</th>
2511    <th>Age</th>
2512    <th>Author</th>
2513    <th>Line</th>
2514    <th>Data</th>
2515  </tr>
2516HTML
2517        my @line_class = (qw(light dark));
2518        my $line_class_len = scalar (@line_class);
2519        my $line_class_num = $#line_class;
2520        while (my $line = <$fd>) {
2521                my $long_rev;
2522                my $short_rev;
2523                my $author;
2524                my $time;
2525                my $lineno;
2526                my $data;
2527                my $age;
2528                my $age_str;
2529                my $age_class;
2530
2531                chomp $line;
2532                $line_class_num = ($line_class_num + 1) % $line_class_len;
2533
2534                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2535                        $long_rev = $1;
2536                        $author   = $2;
2537                        $time     = $3;
2538                        $lineno   = $4;
2539                        $data     = $5;
2540                } else {
2541                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2542                        next;
2543                }
2544                $short_rev  = substr ($long_rev, 0, 8);
2545                $age        = time () - $time;
2546                $age_str    = age_string ($age);
2547                $age_str    =~ s/ /&nbsp;/g;
2548                $age_class  = age_class($age);
2549                $author     = esc_html ($author);
2550                $author     =~ s/ /&nbsp;/g;
2551
2552                $data = untabify($data);
2553                $data = esc_html ($data);
2554
2555                print <<HTML;
2556  <tr class="$line_class[$line_class_num]">
2557    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2558    <td class="$age_class">$age_str</td>
2559    <td>$author</td>
2560    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2561    <td class="pre">$data</td>
2562  </tr>
2563HTML
2564        } # while (my $line = <$fd>)
2565        print "</table>\n\n";
2566        close $fd
2567                or print "Reading blob failed.\n";
2568        print "</div>";
2569        git_footer_html();
2570}
2571
2572sub git_tags {
2573        my $head = git_get_head_hash($project);
2574        git_header_html();
2575        git_print_page_nav('','', $head,undef,$head);
2576        git_print_header_div('summary', $project);
2577
2578        my ($taglist) = git_get_refs_list("tags");
2579        if (@$taglist) {
2580                git_tags_body($taglist);
2581        }
2582        git_footer_html();
2583}
2584
2585sub git_heads {
2586        my $head = git_get_head_hash($project);
2587        git_header_html();
2588        git_print_page_nav('','', $head,undef,$head);
2589        git_print_header_div('summary', $project);
2590
2591        my ($headlist) = git_get_refs_list("heads");
2592        if (@$headlist) {
2593                git_heads_body($headlist, $head);
2594        }
2595        git_footer_html();
2596}
2597
2598sub git_blob_plain {
2599        my $expires;
2600
2601        if (!defined $hash) {
2602                if (defined $file_name) {
2603                        my $base = $hash_base || git_get_head_hash($project);
2604                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2605                                or die_error(undef, "Error lookup file");
2606                } else {
2607                        die_error(undef, "No file name defined");
2608                }
2609        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2610                # blobs defined by non-textual hash id's can be cached
2611                $expires = "+1d";
2612        }
2613
2614        my $type = shift;
2615        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2616                or die_error(undef, "Couldn't cat $file_name, $hash");
2617
2618        $type ||= blob_mimetype($fd, $file_name);
2619
2620        # save as filename, even when no $file_name is given
2621        my $save_as = "$hash";
2622        if (defined $file_name) {
2623                $save_as = $file_name;
2624        } elsif ($type =~ m/^text\//) {
2625                $save_as .= '.txt';
2626        }
2627
2628        print $cgi->header(
2629                -type => "$type",
2630                -expires=>$expires,
2631                -content_disposition => "inline; filename=\"$save_as\"");
2632        undef $/;
2633        binmode STDOUT, ':raw';
2634        print <$fd>;
2635        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2636        $/ = "\n";
2637        close $fd;
2638}
2639
2640sub git_blob {
2641        my $expires;
2642
2643        if (!defined $hash) {
2644                if (defined $file_name) {
2645                        my $base = $hash_base || git_get_head_hash($project);
2646                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2647                                or die_error(undef, "Error lookup file");
2648                } else {
2649                        die_error(undef, "No file name defined");
2650                }
2651        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2652                # blobs defined by non-textual hash id's can be cached
2653                $expires = "+1d";
2654        }
2655
2656        my ($have_blame) = gitweb_check_feature('blame');
2657        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2658                or die_error(undef, "Couldn't cat $file_name, $hash");
2659        my $mimetype = blob_mimetype($fd, $file_name);
2660        if ($mimetype !~ m/^text\//) {
2661                close $fd;
2662                return git_blob_plain($mimetype);
2663        }
2664        git_header_html(undef, $expires);
2665        my $formats_nav = '';
2666        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2667                if (defined $file_name) {
2668                        if ($have_blame) {
2669                                $formats_nav .=
2670                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2671                                                               hash=>$hash, file_name=>$file_name)},
2672                                                "blame") .
2673                                        " | ";
2674                        }
2675                        $formats_nav .=
2676                                $cgi->a({-href => href(action=>"blob_plain",
2677                                                       hash=>$hash, file_name=>$file_name)},
2678                                        "plain") .
2679                                " | " .
2680                                $cgi->a({-href => href(action=>"blob",
2681                                                       hash_base=>"HEAD", file_name=>$file_name)},
2682                                        "head");
2683                } else {
2684                        $formats_nav .=
2685                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2686                }
2687                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2688                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2689        } else {
2690                print "<div class=\"page_nav\">\n" .
2691                      "<br/><br/></div>\n" .
2692                      "<div class=\"title\">$hash</div>\n";
2693        }
2694        git_print_page_path($file_name, "blob", $hash_base);
2695        print "<div class=\"page_body\">\n";
2696        my $nr;
2697        while (my $line = <$fd>) {
2698                chomp $line;
2699                $nr++;
2700                $line = untabify($line);
2701                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2702                       $nr, $nr, $nr, esc_html($line);
2703        }
2704        close $fd
2705                or print "Reading blob failed.\n";
2706        print "</div>";
2707        git_footer_html();
2708}
2709
2710sub git_tree {
2711        if (!defined $hash) {
2712                $hash = git_get_head_hash($project);
2713                if (defined $file_name) {
2714                        my $base = $hash_base || $hash;
2715                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2716                }
2717                if (!defined $hash_base) {
2718                        $hash_base = $hash;
2719                }
2720        }
2721        $/ = "\0";
2722        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2723                or die_error(undef, "Open git-ls-tree failed");
2724        my @entries = map { chomp; $_ } <$fd>;
2725        close $fd or die_error(undef, "Reading tree failed");
2726        $/ = "\n";
2727
2728        my $refs = git_get_references();
2729        my $ref = format_ref_marker($refs, $hash_base);
2730        git_header_html();
2731        my $base = "";
2732        my ($have_blame) = gitweb_check_feature('blame');
2733        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2734                git_print_page_nav('tree','', $hash_base);
2735                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2736        } else {
2737                undef $hash_base;
2738                print "<div class=\"page_nav\">\n";
2739                print "<br/><br/></div>\n";
2740                print "<div class=\"title\">$hash</div>\n";
2741        }
2742        if (defined $file_name) {
2743                $base = esc_html("$file_name/");
2744        }
2745        git_print_page_path($file_name, 'tree', $hash_base);
2746        print "<div class=\"page_body\">\n";
2747        print "<table cellspacing=\"0\">\n";
2748        my $alternate = 0;
2749        foreach my $line (@entries) {
2750                my %t = parse_ls_tree_line($line, -z => 1);
2751
2752                if ($alternate) {
2753                        print "<tr class=\"dark\">\n";
2754                } else {
2755                        print "<tr class=\"light\">\n";
2756                }
2757                $alternate ^= 1;
2758
2759                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2760
2761                print "</tr>\n";
2762        }
2763        print "</table>\n" .
2764              "</div>";
2765        git_footer_html();
2766}
2767
2768sub git_snapshot {
2769
2770        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2771        my $have_snapshot = (defined $ctype && defined $suffix);
2772        if (!$have_snapshot) {
2773                die_error('403 Permission denied', "Permission denied");
2774        }
2775
2776        if (!defined $hash) {
2777                $hash = git_get_head_hash($project);
2778        }
2779
2780        my $filename = basename($project) . "-$hash.tar.$suffix";
2781
2782        print $cgi->header(-type => 'application/x-tar',
2783                           -content_encoding => $ctype,
2784                           -content_disposition => "inline; filename=\"$filename\"",
2785                           -status => '200 OK');
2786
2787        my $git_command = git_cmd_str();
2788        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2789                die_error(undef, "Execute git-tar-tree failed.");
2790        binmode STDOUT, ':raw';
2791        print <$fd>;
2792        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2793        close $fd;
2794
2795}
2796
2797sub git_log {
2798        my $head = git_get_head_hash($project);
2799        if (!defined $hash) {
2800                $hash = $head;
2801        }
2802        if (!defined $page) {
2803                $page = 0;
2804        }
2805        my $refs = git_get_references();
2806
2807        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2808        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2809                or die_error(undef, "Open git-rev-list failed");
2810        my @revlist = map { chomp; $_ } <$fd>;
2811        close $fd;
2812
2813        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2814
2815        git_header_html();
2816        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2817
2818        if (!@revlist) {
2819                my %co = parse_commit($hash);
2820
2821                git_print_header_div('summary', $project);
2822                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2823        }
2824        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2825                my $commit = $revlist[$i];
2826                my $ref = format_ref_marker($refs, $commit);
2827                my %co = parse_commit($commit);
2828                next if !%co;
2829                my %ad = parse_date($co{'author_epoch'});
2830                git_print_header_div('commit',
2831                               "<span class=\"age\">$co{'age_string'}</span>" .
2832                               esc_html($co{'title'}) . $ref,
2833                               $commit);
2834                print "<div class=\"title_text\">\n" .
2835                      "<div class=\"log_link\">\n" .
2836                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2837                      " | " .
2838                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2839                      "<br/>\n" .
2840                      "</div>\n" .
2841                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2842                      "</div>\n";
2843
2844                print "<div class=\"log_body\">\n";
2845                git_print_simplified_log($co{'comment'});
2846                print "</div>\n";
2847        }
2848        git_footer_html();
2849}
2850
2851sub git_commit {
2852        my %co = parse_commit($hash);
2853        if (!%co) {
2854                die_error(undef, "Unknown commit object");
2855        }
2856        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2857        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2858
2859        my $parent = $co{'parent'};
2860        if (!defined $parent) {
2861                $parent = "--root";
2862        }
2863        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2864                or die_error(undef, "Open git-diff-tree failed");
2865        my @difftree = map { chomp; $_ } <$fd>;
2866        close $fd or die_error(undef, "Reading git-diff-tree failed");
2867
2868        # non-textual hash id's can be cached
2869        my $expires;
2870        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2871                $expires = "+1d";
2872        }
2873        my $refs = git_get_references();
2874        my $ref = format_ref_marker($refs, $co{'id'});
2875
2876        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2877        my $have_snapshot = (defined $ctype && defined $suffix);
2878
2879        my $formats_nav = '';
2880        if (defined $file_name && defined $co{'parent'}) {
2881                my $parent = $co{'parent'};
2882                $formats_nav .=
2883                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2884                                "blame");
2885        }
2886        git_header_html(undef, $expires);
2887        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2888                           $hash, $co{'tree'}, $hash,
2889                           $formats_nav);
2890
2891        if (defined $co{'parent'}) {
2892                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2893        } else {
2894                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2895        }
2896        print "<div class=\"title_text\">\n" .
2897              "<table cellspacing=\"0\">\n";
2898        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2899              "<tr>" .
2900              "<td></td><td> $ad{'rfc2822'}";
2901        if ($ad{'hour_local'} < 6) {
2902                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2903                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2904        } else {
2905                printf(" (%02d:%02d %s)",
2906                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2907        }
2908        print "</td>" .
2909              "</tr>\n";
2910        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2911        print "<tr><td></td><td> $cd{'rfc2822'}" .
2912              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2913              "</td></tr>\n";
2914        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2915        print "<tr>" .
2916              "<td>tree</td>" .
2917              "<td class=\"sha1\">" .
2918              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2919                       class => "list"}, $co{'tree'}) .
2920              "</td>" .
2921              "<td class=\"link\">" .
2922              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2923                      "tree");
2924        if ($have_snapshot) {
2925                print " | " .
2926                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2927        }
2928        print "</td>" .
2929              "</tr>\n";
2930        my $parents = $co{'parents'};
2931        foreach my $par (@$parents) {
2932                print "<tr>" .
2933                      "<td>parent</td>" .
2934                      "<td class=\"sha1\">" .
2935                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2936                               class => "list"}, $par) .
2937                      "</td>" .
2938                      "<td class=\"link\">" .
2939                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2940                      " | " .
2941                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2942                      "</td>" .
2943                      "</tr>\n";
2944        }
2945        print "</table>".
2946              "</div>\n";
2947
2948        print "<div class=\"page_body\">\n";
2949        git_print_log($co{'comment'});
2950        print "</div>\n";
2951
2952        git_difftree_body(\@difftree, $hash, $parent);
2953
2954        git_footer_html();
2955}
2956
2957sub git_blobdiff {
2958        my $format = shift || 'html';
2959
2960        my $fd;
2961        my @difftree;
2962        my %diffinfo;
2963        my $expires;
2964
2965        # preparing $fd and %diffinfo for git_patchset_body
2966        # new style URI
2967        if (defined $hash_base && defined $hash_parent_base) {
2968                if (defined $file_name) {
2969                        # read raw output
2970                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2971                                "--", $file_name
2972                                or die_error(undef, "Open git-diff-tree failed");
2973                        @difftree = map { chomp; $_ } <$fd>;
2974                        close $fd
2975                                or die_error(undef, "Reading git-diff-tree failed");
2976                        @difftree
2977                                or die_error('404 Not Found', "Blob diff not found");
2978
2979                } elsif (defined $hash &&
2980                         $hash =~ /[0-9a-fA-F]{40}/) {
2981                        # try to find filename from $hash
2982
2983                        # read filtered raw output
2984                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2985                                or die_error(undef, "Open git-diff-tree failed");
2986                        @difftree =
2987                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2988                                # $hash == to_id
2989                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2990                                map { chomp; $_ } <$fd>;
2991                        close $fd
2992                                or die_error(undef, "Reading git-diff-tree failed");
2993                        @difftree
2994                                or die_error('404 Not Found', "Blob diff not found");
2995
2996                } else {
2997                        die_error('404 Not Found', "Missing one of the blob diff parameters");
2998                }
2999
3000                if (@difftree > 1) {
3001                        die_error('404 Not Found', "Ambiguous blob diff specification");
3002                }
3003
3004                %diffinfo = parse_difftree_raw_line($difftree[0]);
3005                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3006                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3007
3008                $hash_parent ||= $diffinfo{'from_id'};
3009                $hash        ||= $diffinfo{'to_id'};
3010
3011                # non-textual hash id's can be cached
3012                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3013                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3014                        $expires = '+1d';
3015                }
3016
3017                # open patch output
3018                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3019                        '-p', $hash_parent_base, $hash_base,
3020                        "--", $file_name
3021                        or die_error(undef, "Open git-diff-tree failed");
3022        }
3023
3024        # old/legacy style URI
3025        if (!%diffinfo && # if new style URI failed
3026            defined $hash && defined $hash_parent) {
3027                # fake git-diff-tree raw output
3028                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3029                $diffinfo{'from_id'} = $hash_parent;
3030                $diffinfo{'to_id'}   = $hash;
3031                if (defined $file_name) {
3032                        if (defined $file_parent) {
3033                                $diffinfo{'status'} = '2';
3034                                $diffinfo{'from_file'} = $file_parent;
3035                                $diffinfo{'to_file'}   = $file_name;
3036                        } else { # assume not renamed
3037                                $diffinfo{'status'} = '1';
3038                                $diffinfo{'from_file'} = $file_name;
3039                                $diffinfo{'to_file'}   = $file_name;
3040                        }
3041                } else { # no filename given
3042                        $diffinfo{'status'} = '2';
3043                        $diffinfo{'from_file'} = $hash_parent;
3044                        $diffinfo{'to_file'}   = $hash;
3045                }
3046
3047                # non-textual hash id's can be cached
3048                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3049                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3050                        $expires = '+1d';
3051                }
3052
3053                # open patch output
3054                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3055                        or die_error(undef, "Open git-diff failed");
3056        } else  {
3057                die_error('404 Not Found', "Missing one of the blob diff parameters")
3058                        unless %diffinfo;
3059        }
3060
3061        # header
3062        if ($format eq 'html') {
3063                my $formats_nav =
3064                        $cgi->a({-href => href(action=>"blobdiff_plain",
3065                                               hash=>$hash, hash_parent=>$hash_parent,
3066                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3067                                               file_name=>$file_name, file_parent=>$file_parent)},
3068                                "plain");
3069                git_header_html(undef, $expires);
3070                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3071                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3072                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3073                } else {
3074                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3075                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3076                }
3077                if (defined $file_name) {
3078                        git_print_page_path($file_name, "blob", $hash_base);
3079                } else {
3080                        print "<div class=\"page_path\"></div>\n";
3081                }
3082
3083        } elsif ($format eq 'plain') {
3084                print $cgi->header(
3085                        -type => 'text/plain',
3086                        -charset => 'utf-8',
3087                        -expires => $expires,
3088                        -content_disposition => qq(inline; filename="${file_name}.patch"));
3089
3090                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3091
3092        } else {
3093                die_error(undef, "Unknown blobdiff format");
3094        }
3095
3096        # patch
3097        if ($format eq 'html') {
3098                print "<div class=\"page_body\">\n";
3099
3100                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3101                close $fd;
3102
3103                print "</div>\n"; # class="page_body"
3104                git_footer_html();
3105
3106        } else {
3107                while (my $line = <$fd>) {
3108                        $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3109                        $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3110
3111                        print $line;
3112
3113                        last if $line =~ m!^\+\+\+!;
3114                }
3115                local $/ = undef;
3116                print <$fd>;
3117                close $fd;
3118        }
3119}
3120
3121sub git_blobdiff_plain {
3122        git_blobdiff('plain');
3123}
3124
3125sub git_commitdiff {
3126        my $format = shift || 'html';
3127        my %co = parse_commit($hash);
3128        if (!%co) {
3129                die_error(undef, "Unknown commit object");
3130        }
3131        if (!defined $hash_parent) {
3132                $hash_parent = $co{'parent'} || '--root';
3133        }
3134
3135        # read commitdiff
3136        my $fd;
3137        my @difftree;
3138        if ($format eq 'html') {
3139                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3140                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3141                        or die_error(undef, "Open git-diff-tree failed");
3142
3143                while (chomp(my $line = <$fd>)) {
3144                        # empty line ends raw part of diff-tree output
3145                        last unless $line;
3146                        push @difftree, $line;
3147                }
3148
3149        } elsif ($format eq 'plain') {
3150                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3151                        '-p', $hash_parent, $hash
3152                        or die_error(undef, "Open git-diff-tree failed");
3153
3154        } else {
3155                die_error(undef, "Unknown commitdiff format");
3156        }
3157
3158        # non-textual hash id's can be cached
3159        my $expires;
3160        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3161                $expires = "+1d";
3162        }
3163
3164        # write commit message
3165        if ($format eq 'html') {
3166                my $refs = git_get_references();
3167                my $ref = format_ref_marker($refs, $co{'id'});
3168                my $formats_nav =
3169                        $cgi->a({-href => href(action=>"commitdiff_plain",
3170                                               hash=>$hash, hash_parent=>$hash_parent)},
3171                                "plain");
3172
3173                git_header_html(undef, $expires);
3174                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3175                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3176                git_print_authorship(\%co);
3177                print "<div class=\"page_body\">\n";
3178                print "<div class=\"log\">\n";
3179                git_print_simplified_log($co{'comment'}, 1); # skip title
3180                print "</div>\n"; # class="log"
3181
3182        } elsif ($format eq 'plain') {
3183                my $refs = git_get_references("tags");
3184                my $tagname = git_get_rev_name_tags($hash);
3185                my $filename = basename($project) . "-$hash.patch";
3186
3187                print $cgi->header(
3188                        -type => 'text/plain',
3189                        -charset => 'utf-8',
3190                        -expires => $expires,
3191                        -content_disposition => qq(inline; filename="$filename"));
3192                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3193                print <<TEXT;
3194From: $co{'author'}
3195Date: $ad{'rfc2822'} ($ad{'tz_local'})
3196Subject: $co{'title'}
3197TEXT
3198                print "X-Git-Tag: $tagname\n" if $tagname;
3199                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3200
3201                foreach my $line (@{$co{'comment'}}) {
3202                        print "$line\n";
3203                }
3204                print "---\n\n";
3205        }
3206
3207        # write patch
3208        if ($format eq 'html') {
3209                git_difftree_body(\@difftree, $hash, $hash_parent);
3210                print "<br/>\n";
3211
3212                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3213                close $fd;
3214                print "</div>\n"; # class="page_body"
3215                git_footer_html();
3216
3217        } elsif ($format eq 'plain') {
3218                local $/ = undef;
3219                print <$fd>;
3220                close $fd
3221                        or print "Reading git-diff-tree failed\n";
3222        }
3223}
3224
3225sub git_commitdiff_plain {
3226        git_commitdiff('plain');
3227}
3228
3229sub git_history {
3230        if (!defined $hash_base) {
3231                $hash_base = git_get_head_hash($project);
3232        }
3233        if (!defined $page) {
3234                $page = 0;
3235        }
3236        my $ftype;
3237        my %co = parse_commit($hash_base);
3238        if (!%co) {
3239                die_error(undef, "Unknown commit object");
3240        }
3241
3242        my $refs = git_get_references();
3243        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3244
3245        if (!defined $hash && defined $file_name) {
3246                $hash = git_get_hash_by_path($hash_base, $file_name);
3247        }
3248        if (defined $hash) {
3249                $ftype = git_get_type($hash);
3250        }
3251
3252        open my $fd, "-|",
3253                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3254                        or die_error(undef, "Open git-rev-list-failed");
3255        my @revlist = map { chomp; $_ } <$fd>;
3256        close $fd
3257                or die_error(undef, "Reading git-rev-list failed");
3258
3259        my $paging_nav = '';
3260        if ($page > 0) {
3261                $paging_nav .=
3262                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3263                                               file_name=>$file_name)},
3264                                "first");
3265                $paging_nav .= " &sdot; " .
3266                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3267                                               file_name=>$file_name, page=>$page-1),
3268                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3269        } else {
3270                $paging_nav .= "first";
3271                $paging_nav .= " &sdot; prev";
3272        }
3273        if ($#revlist >= (100 * ($page+1)-1)) {
3274                $paging_nav .= " &sdot; " .
3275                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3276                                               file_name=>$file_name, page=>$page+1),
3277                                 -accesskey => "n", -title => "Alt-n"}, "next");
3278        } else {
3279                $paging_nav .= " &sdot; next";
3280        }
3281        my $next_link = '';
3282        if ($#revlist >= (100 * ($page+1)-1)) {
3283                $next_link =
3284                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3285                                               file_name=>$file_name, page=>$page+1),
3286                                 -title => "Alt-n"}, "next");
3287        }
3288
3289        git_header_html();
3290        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3291        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3292        git_print_page_path($file_name, $ftype, $hash_base);
3293
3294        git_history_body(\@revlist, ($page * 100), $#revlist,
3295                         $refs, $hash_base, $ftype, $next_link);
3296
3297        git_footer_html();
3298}
3299
3300sub git_search {
3301        if (!defined $searchtext) {
3302                die_error(undef, "Text field empty");
3303        }
3304        if (!defined $hash) {
3305                $hash = git_get_head_hash($project);
3306        }
3307        my %co = parse_commit($hash);
3308        if (!%co) {
3309                die_error(undef, "Unknown commit object");
3310        }
3311
3312        my $commit_search = 1;
3313        my $author_search = 0;
3314        my $committer_search = 0;
3315        my $pickaxe_search = 0;
3316        if ($searchtext =~ s/^author\\://i) {
3317                $author_search = 1;
3318        } elsif ($searchtext =~ s/^committer\\://i) {
3319                $committer_search = 1;
3320        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3321                $commit_search = 0;
3322                $pickaxe_search = 1;
3323
3324                # pickaxe may take all resources of your box and run for several minutes
3325                # with every query - so decide by yourself how public you make this feature
3326                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3327                if (!$have_pickaxe) {
3328                        die_error('403 Permission denied', "Permission denied");
3329                }
3330        }
3331        git_header_html();
3332        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3333        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3334
3335        print "<table cellspacing=\"0\">\n";
3336        my $alternate = 0;
3337        if ($commit_search) {
3338                $/ = "\0";
3339                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3340                while (my $commit_text = <$fd>) {
3341                        if (!grep m/$searchtext/i, $commit_text) {
3342                                next;
3343                        }
3344                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3345                                next;
3346                        }
3347                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3348                                next;
3349                        }
3350                        my @commit_lines = split "\n", $commit_text;
3351                        my %co = parse_commit(undef, \@commit_lines);
3352                        if (!%co) {
3353                                next;
3354                        }
3355                        if ($alternate) {
3356                                print "<tr class=\"dark\">\n";
3357                        } else {
3358                                print "<tr class=\"light\">\n";
3359                        }
3360                        $alternate ^= 1;
3361                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3362                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3363                              "<td>" .
3364                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3365                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3366                        my $comment = $co{'comment'};
3367                        foreach my $line (@$comment) {
3368                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3369                                        my $lead = esc_html($1) || "";
3370                                        $lead = chop_str($lead, 30, 10);
3371                                        my $match = esc_html($2) || "";
3372                                        my $trail = esc_html($3) || "";
3373                                        $trail = chop_str($trail, 30, 10);
3374                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3375                                        print chop_str($text, 80, 5) . "<br/>\n";
3376                                }
3377                        }
3378                        print "</td>\n" .
3379                              "<td class=\"link\">" .
3380                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3381                              " | " .
3382                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3383                        print "</td>\n" .
3384                              "</tr>\n";
3385                }
3386                close $fd;
3387        }
3388
3389        if ($pickaxe_search) {
3390                $/ = "\n";
3391                my $git_command = git_cmd_str();
3392                open my $fd, "-|", "$git_command rev-list $hash | " .
3393                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3394                undef %co;
3395                my @files;
3396                while (my $line = <$fd>) {
3397                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3398                                my %set;
3399                                $set{'file'} = $6;
3400                                $set{'from_id'} = $3;
3401                                $set{'to_id'} = $4;
3402                                $set{'id'} = $set{'to_id'};
3403                                if ($set{'id'} =~ m/0{40}/) {
3404                                        $set{'id'} = $set{'from_id'};
3405                                }
3406                                if ($set{'id'} =~ m/0{40}/) {
3407                                        next;
3408                                }
3409                                push @files, \%set;
3410                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3411                                if (%co) {
3412                                        if ($alternate) {
3413                                                print "<tr class=\"dark\">\n";
3414                                        } else {
3415                                                print "<tr class=\"light\">\n";
3416                                        }
3417                                        $alternate ^= 1;
3418                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3419                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3420                                              "<td>" .
3421                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3422                                                      -class => "list subject"},
3423                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3424                                        while (my $setref = shift @files) {
3425                                                my %set = %$setref;
3426                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3427                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3428                                                              -class => "list"},
3429                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3430                                                      "<br/>\n";
3431                                        }
3432                                        print "</td>\n" .
3433                                              "<td class=\"link\">" .
3434                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3435                                              " | " .
3436                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3437                                        print "</td>\n" .
3438                                              "</tr>\n";
3439                                }
3440                                %co = parse_commit($1);
3441                        }
3442                }
3443                close $fd;
3444        }
3445        print "</table>\n";
3446        git_footer_html();
3447}
3448
3449sub git_shortlog {
3450        my $head = git_get_head_hash($project);
3451        if (!defined $hash) {
3452                $hash = $head;
3453        }
3454        if (!defined $page) {
3455                $page = 0;
3456        }
3457        my $refs = git_get_references();
3458
3459        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3460        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3461                or die_error(undef, "Open git-rev-list failed");
3462        my @revlist = map { chomp; $_ } <$fd>;
3463        close $fd;
3464
3465        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3466        my $next_link = '';
3467        if ($#revlist >= (100 * ($page+1)-1)) {
3468                $next_link =
3469                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3470                                 -title => "Alt-n"}, "next");
3471        }
3472
3473
3474        git_header_html();
3475        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3476        git_print_header_div('summary', $project);
3477
3478        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3479
3480        git_footer_html();
3481}
3482
3483## ......................................................................
3484## feeds (RSS, OPML)
3485
3486sub git_rss {
3487        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3488        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3489                or die_error(undef, "Open git-rev-list failed");
3490        my @revlist = map { chomp; $_ } <$fd>;
3491        close $fd or die_error(undef, "Reading git-rev-list failed");
3492        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3493        print <<XML;
3494<?xml version="1.0" encoding="utf-8"?>
3495<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3496<channel>
3497<title>$project $my_uri $my_url</title>
3498<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3499<description>$project log</description>
3500<language>en</language>
3501XML
3502
3503        for (my $i = 0; $i <= $#revlist; $i++) {
3504                my $commit = $revlist[$i];
3505                my %co = parse_commit($commit);
3506                # we read 150, we always show 30 and the ones more recent than 48 hours
3507                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3508                        last;
3509                }
3510                my %cd = parse_date($co{'committer_epoch'});
3511                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3512                        $co{'parent'}, $co{'id'}
3513                        or next;
3514                my @difftree = map { chomp; $_ } <$fd>;
3515                close $fd
3516                        or next;
3517                print "<item>\n" .
3518                      "<title>" .
3519                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3520                      "</title>\n" .
3521                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3522                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3523                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3524                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3525                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3526                      "<content:encoded>" .
3527                      "<![CDATA[\n";
3528                my $comment = $co{'comment'};
3529                foreach my $line (@$comment) {
3530                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3531                        print "$line<br/>\n";
3532                }
3533                print "<br/>\n";
3534                foreach my $line (@difftree) {
3535                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3536                                next;
3537                        }
3538                        my $file = validate_input(unquote($7));
3539                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3540                        print "$file<br/>\n";
3541                }
3542                print "]]>\n" .
3543                      "</content:encoded>\n" .
3544                      "</item>\n";
3545        }
3546        print "</channel></rss>";
3547}
3548
3549sub git_opml {
3550        my @list = git_get_projects_list();
3551
3552        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3553        print <<XML;
3554<?xml version="1.0" encoding="utf-8"?>
3555<opml version="1.0">
3556<head>
3557  <title>$site_name Git OPML Export</title>
3558</head>
3559<body>
3560<outline text="git RSS feeds">
3561XML
3562
3563        foreach my $pr (@list) {
3564                my %proj = %$pr;
3565                my $head = git_get_head_hash($proj{'path'});
3566                if (!defined $head) {
3567                        next;
3568                }
3569                $git_dir = "$projectroot/$proj{'path'}";
3570                my %co = parse_commit($head);
3571                if (!%co) {
3572                        next;
3573                }
3574
3575                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3576                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3577                my $html = "$my_url?p=$proj{'path'};a=summary";
3578                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3579        }
3580        print <<XML;
3581</outline>
3582</body>
3583</opml>
3584XML
3585}