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# $GITWEB_CONFIG as necessary.
  78our %feature = (
  79        # feature => {
  80        #       'sub' => feature-sub (subroutine),
  81        #       'override' => allow-override (boolean),
  82        #       'default' => [ default options...] (array reference)}
  83        #
  84        # if feature is overridable (it means that allow-override has true value,
  85        # then feature-sub will be called with default options as parameters;
  86        # return value of feature-sub indicates if to enable specified feature
  87        #
  88        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90        'blame' => {
  91                'sub' => \&feature_blame,
  92                'override' => 0,
  93                'default' => [0]},
  94
  95        'snapshot' => {
  96                'sub' => \&feature_snapshot,
  97                'override' => 0,
  98                #         => [content-encoding, suffix, program]
  99                'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101        'pickaxe' => {
 102                'sub' => \&feature_pickaxe,
 103                'override' => 0,
 104                'default' => [1]},
 105
 106        'pathinfo' => {
 107                'override' => 0,
 108                'default' => [0]},
 109);
 110
 111sub gitweb_check_feature {
 112        my ($name) = @_;
 113        return unless exists $feature{$name};
 114        my ($sub, $override, @defaults) = (
 115                $feature{$name}{'sub'},
 116                $feature{$name}{'override'},
 117                @{$feature{$name}{'default'}});
 118        if (!$override) { return @defaults; }
 119        if (!defined $sub) {
 120                warn "feature $name is not overrideable";
 121                return @defaults;
 122        }
 123        return $sub->(@defaults);
 124}
 125
 126# To enable system wide have in $GITWEB_CONFIG
 127# $feature{'blame'}{'default'} = [1];
 128# To have project specific config enable override in $GITWEB_CONFIG
 129# $feature{'blame'}{'override'} = 1;
 130# and in project config gitweb.blame = 0|1;
 131
 132sub feature_blame {
 133        my ($val) = git_get_project_config('blame', '--bool');
 134
 135        if ($val eq 'true') {
 136                return 1;
 137        } elsif ($val eq 'false') {
 138                return 0;
 139        }
 140
 141        return $_[0];
 142}
 143
 144# To disable system wide have in $GITWEB_CONFIG
 145# $feature{'snapshot'}{'default'} = [undef];
 146# To have project specific config enable override in $GITWEB_CONFIG
 147# $feature{'blame'}{'override'} = 1;
 148# and in project config  gitweb.snapshot = none|gzip|bzip2
 149
 150sub feature_snapshot {
 151        my ($ctype, $suffix, $command) = @_;
 152
 153        my ($val) = git_get_project_config('snapshot');
 154
 155        if ($val eq 'gzip') {
 156                return ('x-gzip', 'gz', 'gzip');
 157        } elsif ($val eq 'bzip2') {
 158                return ('x-bzip2', 'bz2', 'bzip2');
 159        } elsif ($val eq 'none') {
 160                return ();
 161        }
 162
 163        return ($ctype, $suffix, $command);
 164}
 165
 166sub gitweb_have_snapshot {
 167        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 168        my $have_snapshot = (defined $ctype && defined $suffix);
 169
 170        return $have_snapshot;
 171}
 172
 173# To enable system wide have in $GITWEB_CONFIG
 174# $feature{'pickaxe'}{'default'} = [1];
 175# To have project specific config enable override in $GITWEB_CONFIG
 176# $feature{'pickaxe'}{'override'} = 1;
 177# and in project config gitweb.pickaxe = 0|1;
 178
 179sub feature_pickaxe {
 180        my ($val) = git_get_project_config('pickaxe', '--bool');
 181
 182        if ($val eq 'true') {
 183                return (1);
 184        } elsif ($val eq 'false') {
 185                return (0);
 186        }
 187
 188        return ($_[0]);
 189}
 190
 191# rename detection options for git-diff and git-diff-tree
 192# - default is '-M', with the cost proportional to
 193#   (number of removed files) * (number of new files).
 194# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 195#   (number of changed files + number of removed files) * (number of new files)
 196# - even more costly is '-C', '--find-copies-harder' with cost
 197#   (number of files in the original tree) * (number of new files)
 198# - one might want to include '-B' option, e.g. '-B', '-M'
 199our @diff_opts = ('-M'); # taken from git_commit
 200
 201our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 202do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 203
 204# version of the core git binary
 205our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 206
 207$projects_list ||= $projectroot;
 208
 209# ======================================================================
 210# input validation and dispatch
 211our $action = $cgi->param('a');
 212if (defined $action) {
 213        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 214                die_error(undef, "Invalid action parameter");
 215        }
 216}
 217
 218# parameters which are pathnames
 219our $project = $cgi->param('p');
 220if (defined $project) {
 221        if (!validate_pathname($project) ||
 222            !(-d "$projectroot/$project") ||
 223            !(-e "$projectroot/$project/HEAD") ||
 224            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 225            ($strict_export && !project_in_list($project))) {
 226                undef $project;
 227                die_error(undef, "No such project");
 228        }
 229}
 230
 231our $file_name = $cgi->param('f');
 232if (defined $file_name) {
 233        if (!validate_pathname($file_name)) {
 234                die_error(undef, "Invalid file parameter");
 235        }
 236}
 237
 238our $file_parent = $cgi->param('fp');
 239if (defined $file_parent) {
 240        if (!validate_pathname($file_parent)) {
 241                die_error(undef, "Invalid file parent parameter");
 242        }
 243}
 244
 245# parameters which are refnames
 246our $hash = $cgi->param('h');
 247if (defined $hash) {
 248        if (!validate_refname($hash)) {
 249                die_error(undef, "Invalid hash parameter");
 250        }
 251}
 252
 253our $hash_parent = $cgi->param('hp');
 254if (defined $hash_parent) {
 255        if (!validate_refname($hash_parent)) {
 256                die_error(undef, "Invalid hash parent parameter");
 257        }
 258}
 259
 260our $hash_base = $cgi->param('hb');
 261if (defined $hash_base) {
 262        if (!validate_refname($hash_base)) {
 263                die_error(undef, "Invalid hash base parameter");
 264        }
 265}
 266
 267our $hash_parent_base = $cgi->param('hpb');
 268if (defined $hash_parent_base) {
 269        if (!validate_refname($hash_parent_base)) {
 270                die_error(undef, "Invalid hash parent base parameter");
 271        }
 272}
 273
 274# other parameters
 275our $page = $cgi->param('pg');
 276if (defined $page) {
 277        if ($page =~ m/[^0-9]/) {
 278                die_error(undef, "Invalid page parameter");
 279        }
 280}
 281
 282our $searchtext = $cgi->param('s');
 283if (defined $searchtext) {
 284        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 285                die_error(undef, "Invalid search parameter");
 286        }
 287        $searchtext = quotemeta $searchtext;
 288}
 289
 290# now read PATH_INFO and use it as alternative to parameters
 291sub evaluate_path_info {
 292        return if defined $project;
 293        my $path_info = $ENV{"PATH_INFO"};
 294        return if !$path_info;
 295        $path_info =~ s,^/+,,;
 296        return if !$path_info;
 297        # find which part of PATH_INFO is project
 298        $project = $path_info;
 299        $project =~ s,/+$,,;
 300        while ($project && !-e "$projectroot/$project/HEAD") {
 301                $project =~ s,/*[^/]*$,,;
 302        }
 303        # validate project
 304        $project = validate_pathname($project);
 305        if (!$project ||
 306            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 307            ($strict_export && !project_in_list($project))) {
 308                undef $project;
 309                return;
 310        }
 311        # do not change any parameters if an action is given using the query string
 312        return if $action;
 313        $path_info =~ s,^$project/*,,;
 314        my ($refname, $pathname) = split(/:/, $path_info, 2);
 315        if (defined $pathname) {
 316                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 317                # we could use git_get_type(branch:pathname), but it needs $git_dir
 318                $pathname =~ s,^/+,,;
 319                if (!$pathname || substr($pathname, -1) eq "/") {
 320                        $action  ||= "tree";
 321                        $pathname =~ s,/$,,;
 322                } else {
 323                        $action  ||= "blob_plain";
 324                }
 325                $hash_base ||= validate_refname($refname);
 326                $file_name ||= validate_pathname($pathname);
 327        } elsif (defined $refname) {
 328                # we got "project.git/branch"
 329                $action ||= "shortlog";
 330                $hash   ||= validate_refname($refname);
 331        }
 332}
 333evaluate_path_info();
 334
 335# path to the current git repository
 336our $git_dir;
 337$git_dir = "$projectroot/$project" if $project;
 338
 339# dispatch
 340my %actions = (
 341        "blame" => \&git_blame2,
 342        "blobdiff" => \&git_blobdiff,
 343        "blobdiff_plain" => \&git_blobdiff_plain,
 344        "blob" => \&git_blob,
 345        "blob_plain" => \&git_blob_plain,
 346        "commitdiff" => \&git_commitdiff,
 347        "commitdiff_plain" => \&git_commitdiff_plain,
 348        "commit" => \&git_commit,
 349        "heads" => \&git_heads,
 350        "history" => \&git_history,
 351        "log" => \&git_log,
 352        "rss" => \&git_rss,
 353        "search" => \&git_search,
 354        "shortlog" => \&git_shortlog,
 355        "summary" => \&git_summary,
 356        "tag" => \&git_tag,
 357        "tags" => \&git_tags,
 358        "tree" => \&git_tree,
 359        "snapshot" => \&git_snapshot,
 360        # those below don't need $project
 361        "opml" => \&git_opml,
 362        "project_list" => \&git_project_list,
 363        "project_index" => \&git_project_index,
 364);
 365
 366if (defined $project) {
 367        $action ||= 'summary';
 368} else {
 369        $action ||= 'project_list';
 370}
 371if (!defined($actions{$action})) {
 372        die_error(undef, "Unknown action");
 373}
 374if ($action !~ m/^(opml|project_list|project_index)$/ &&
 375    !$project) {
 376        die_error(undef, "Project needed");
 377}
 378$actions{$action}->();
 379exit;
 380
 381## ======================================================================
 382## action links
 383
 384sub href(%) {
 385        my %params = @_;
 386        my $href = $my_uri;
 387
 388        my @mapping = (
 389                project => "p",
 390                action => "a",
 391                file_name => "f",
 392                file_parent => "fp",
 393                hash => "h",
 394                hash_parent => "hp",
 395                hash_base => "hb",
 396                hash_parent_base => "hpb",
 397                page => "pg",
 398                order => "o",
 399                searchtext => "s",
 400        );
 401        my %mapping = @mapping;
 402
 403        $params{'project'} = $project unless exists $params{'project'};
 404
 405        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 406        if ($use_pathinfo) {
 407                # use PATH_INFO for project name
 408                $href .= "/$params{'project'}" if defined $params{'project'};
 409                delete $params{'project'};
 410
 411                # Summary just uses the project path URL
 412                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 413                        delete $params{'action'};
 414                }
 415        }
 416
 417        # now encode the parameters explicitly
 418        my @result = ();
 419        for (my $i = 0; $i < @mapping; $i += 2) {
 420                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 421                if (defined $params{$name}) {
 422                        push @result, $symbol . "=" . esc_param($params{$name});
 423                }
 424        }
 425        $href .= "?" . join(';', @result) if scalar @result;
 426
 427        return $href;
 428}
 429
 430
 431## ======================================================================
 432## validation, quoting/unquoting and escaping
 433
 434sub validate_pathname {
 435        my $input = shift || return undef;
 436
 437        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 438        # at the beginning, at the end, and between slashes.
 439        # also this catches doubled slashes
 440        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 441                return undef;
 442        }
 443        # no null characters
 444        if ($input =~ m!\0!) {
 445                return undef;
 446        }
 447        return $input;
 448}
 449
 450sub validate_refname {
 451        my $input = shift || return undef;
 452
 453        # textual hashes are O.K.
 454        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 455                return $input;
 456        }
 457        # it must be correct pathname
 458        $input = validate_pathname($input)
 459                or return undef;
 460        # restrictions on ref name according to git-check-ref-format
 461        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 462                return undef;
 463        }
 464        return $input;
 465}
 466
 467# quote unsafe chars, but keep the slash, even when it's not
 468# correct, but quoted slashes look too horrible in bookmarks
 469sub esc_param {
 470        my $str = shift;
 471        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 472        $str =~ s/\+/%2B/g;
 473        $str =~ s/ /\+/g;
 474        return $str;
 475}
 476
 477# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 478sub esc_url {
 479        my $str = shift;
 480        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 481        $str =~ s/\+/%2B/g;
 482        $str =~ s/ /\+/g;
 483        return $str;
 484}
 485
 486# replace invalid utf8 character with SUBSTITUTION sequence
 487sub esc_html {
 488        my $str = shift;
 489        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 490        $str = escapeHTML($str);
 491        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 492        return $str;
 493}
 494
 495# git may return quoted and escaped filenames
 496sub unquote {
 497        my $str = shift;
 498        if ($str =~ m/^"(.*)"$/) {
 499                $str = $1;
 500                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 501        }
 502        return $str;
 503}
 504
 505# escape tabs (convert tabs to spaces)
 506sub untabify {
 507        my $line = shift;
 508
 509        while ((my $pos = index($line, "\t")) != -1) {
 510                if (my $count = (8 - ($pos % 8))) {
 511                        my $spaces = ' ' x $count;
 512                        $line =~ s/\t/$spaces/;
 513                }
 514        }
 515
 516        return $line;
 517}
 518
 519sub project_in_list {
 520        my $project = shift;
 521        my @list = git_get_projects_list();
 522        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 523}
 524
 525## ----------------------------------------------------------------------
 526## HTML aware string manipulation
 527
 528sub chop_str {
 529        my $str = shift;
 530        my $len = shift;
 531        my $add_len = shift || 10;
 532
 533        # allow only $len chars, but don't cut a word if it would fit in $add_len
 534        # if it doesn't fit, cut it if it's still longer than the dots we would add
 535        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 536        my $body = $1;
 537        my $tail = $2;
 538        if (length($tail) > 4) {
 539                $tail = " ...";
 540                $body =~ s/&[^;]*$//; # remove chopped character entities
 541        }
 542        return "$body$tail";
 543}
 544
 545## ----------------------------------------------------------------------
 546## functions returning short strings
 547
 548# CSS class for given age value (in seconds)
 549sub age_class {
 550        my $age = shift;
 551
 552        if ($age < 60*60*2) {
 553                return "age0";
 554        } elsif ($age < 60*60*24*2) {
 555                return "age1";
 556        } else {
 557                return "age2";
 558        }
 559}
 560
 561# convert age in seconds to "nn units ago" string
 562sub age_string {
 563        my $age = shift;
 564        my $age_str;
 565
 566        if ($age > 60*60*24*365*2) {
 567                $age_str = (int $age/60/60/24/365);
 568                $age_str .= " years ago";
 569        } elsif ($age > 60*60*24*(365/12)*2) {
 570                $age_str = int $age/60/60/24/(365/12);
 571                $age_str .= " months ago";
 572        } elsif ($age > 60*60*24*7*2) {
 573                $age_str = int $age/60/60/24/7;
 574                $age_str .= " weeks ago";
 575        } elsif ($age > 60*60*24*2) {
 576                $age_str = int $age/60/60/24;
 577                $age_str .= " days ago";
 578        } elsif ($age > 60*60*2) {
 579                $age_str = int $age/60/60;
 580                $age_str .= " hours ago";
 581        } elsif ($age > 60*2) {
 582                $age_str = int $age/60;
 583                $age_str .= " min ago";
 584        } elsif ($age > 2) {
 585                $age_str = int $age;
 586                $age_str .= " sec ago";
 587        } else {
 588                $age_str .= " right now";
 589        }
 590        return $age_str;
 591}
 592
 593# convert file mode in octal to symbolic file mode string
 594sub mode_str {
 595        my $mode = oct shift;
 596
 597        if (S_ISDIR($mode & S_IFMT)) {
 598                return 'drwxr-xr-x';
 599        } elsif (S_ISLNK($mode)) {
 600                return 'lrwxrwxrwx';
 601        } elsif (S_ISREG($mode)) {
 602                # git cares only about the executable bit
 603                if ($mode & S_IXUSR) {
 604                        return '-rwxr-xr-x';
 605                } else {
 606                        return '-rw-r--r--';
 607                };
 608        } else {
 609                return '----------';
 610        }
 611}
 612
 613# convert file mode in octal to file type string
 614sub file_type {
 615        my $mode = shift;
 616
 617        if ($mode !~ m/^[0-7]+$/) {
 618                return $mode;
 619        } else {
 620                $mode = oct $mode;
 621        }
 622
 623        if (S_ISDIR($mode & S_IFMT)) {
 624                return "directory";
 625        } elsif (S_ISLNK($mode)) {
 626                return "symlink";
 627        } elsif (S_ISREG($mode)) {
 628                return "file";
 629        } else {
 630                return "unknown";
 631        }
 632}
 633
 634## ----------------------------------------------------------------------
 635## functions returning short HTML fragments, or transforming HTML fragments
 636## which don't beling to other sections
 637
 638# format line of commit message or tag comment
 639sub format_log_line_html {
 640        my $line = shift;
 641
 642        $line = esc_html($line);
 643        $line =~ s/ /&nbsp;/g;
 644        if ($line =~ m/([0-9a-fA-F]{40})/) {
 645                my $hash_text = $1;
 646                if (git_get_type($hash_text) eq "commit") {
 647                        my $link =
 648                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 649                                        -class => "text"}, $hash_text);
 650                        $line =~ s/$hash_text/$link/;
 651                }
 652        }
 653        return $line;
 654}
 655
 656# format marker of refs pointing to given object
 657sub format_ref_marker {
 658        my ($refs, $id) = @_;
 659        my $markers = '';
 660
 661        if (defined $refs->{$id}) {
 662                foreach my $ref (@{$refs->{$id}}) {
 663                        my ($type, $name) = qw();
 664                        # e.g. tags/v2.6.11 or heads/next
 665                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 666                                $type = $1;
 667                                $name = $2;
 668                        } else {
 669                                $type = "ref";
 670                                $name = $ref;
 671                        }
 672
 673                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 674                }
 675        }
 676
 677        if ($markers) {
 678                return ' <span class="refs">'. $markers . '</span>';
 679        } else {
 680                return "";
 681        }
 682}
 683
 684# format, perhaps shortened and with markers, title line
 685sub format_subject_html {
 686        my ($long, $short, $href, $extra) = @_;
 687        $extra = '' unless defined($extra);
 688
 689        if (length($short) < length($long)) {
 690                return $cgi->a({-href => $href, -class => "list subject",
 691                                -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 692                       esc_html($short) . $extra);
 693        } else {
 694                return $cgi->a({-href => $href, -class => "list subject"},
 695                       esc_html($long)  . $extra);
 696        }
 697}
 698
 699sub format_diff_line {
 700        my $line = shift;
 701        my $char = substr($line, 0, 1);
 702        my $diff_class = "";
 703
 704        chomp $line;
 705
 706        if ($char eq '+') {
 707                $diff_class = " add";
 708        } elsif ($char eq "-") {
 709                $diff_class = " rem";
 710        } elsif ($char eq "@") {
 711                $diff_class = " chunk_header";
 712        } elsif ($char eq "\\") {
 713                $diff_class = " incomplete";
 714        }
 715        $line = untabify($line);
 716        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 717}
 718
 719## ----------------------------------------------------------------------
 720## git utility subroutines, invoking git commands
 721
 722# returns path to the core git executable and the --git-dir parameter as list
 723sub git_cmd {
 724        return $GIT, '--git-dir='.$git_dir;
 725}
 726
 727# returns path to the core git executable and the --git-dir parameter as string
 728sub git_cmd_str {
 729        return join(' ', git_cmd());
 730}
 731
 732# get HEAD ref of given project as hash
 733sub git_get_head_hash {
 734        my $project = shift;
 735        my $o_git_dir = $git_dir;
 736        my $retval = undef;
 737        $git_dir = "$projectroot/$project";
 738        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 739                my $head = <$fd>;
 740                close $fd;
 741                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 742                        $retval = $1;
 743                }
 744        }
 745        if (defined $o_git_dir) {
 746                $git_dir = $o_git_dir;
 747        }
 748        return $retval;
 749}
 750
 751# get type of given object
 752sub git_get_type {
 753        my $hash = shift;
 754
 755        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 756        my $type = <$fd>;
 757        close $fd or return;
 758        chomp $type;
 759        return $type;
 760}
 761
 762sub git_get_project_config {
 763        my ($key, $type) = @_;
 764
 765        return unless ($key);
 766        $key =~ s/^gitweb\.//;
 767        return if ($key =~ m/\W/);
 768
 769        my @x = (git_cmd(), 'repo-config');
 770        if (defined $type) { push @x, $type; }
 771        push @x, "--get";
 772        push @x, "gitweb.$key";
 773        my $val = qx(@x);
 774        chomp $val;
 775        return ($val);
 776}
 777
 778# get hash of given path at given ref
 779sub git_get_hash_by_path {
 780        my $base = shift;
 781        my $path = shift || return undef;
 782        my $type = shift;
 783
 784        $path =~ s,/+$,,;
 785
 786        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 787                or die_error(undef, "Open git-ls-tree failed");
 788        my $line = <$fd>;
 789        close $fd or return undef;
 790
 791        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 792        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 793        if (defined $type && $type ne $2) {
 794                # type doesn't match
 795                return undef;
 796        }
 797        return $3;
 798}
 799
 800## ......................................................................
 801## git utility functions, directly accessing git repository
 802
 803sub git_get_project_description {
 804        my $path = shift;
 805
 806        open my $fd, "$projectroot/$path/description" or return undef;
 807        my $descr = <$fd>;
 808        close $fd;
 809        chomp $descr;
 810        return $descr;
 811}
 812
 813sub git_get_project_url_list {
 814        my $path = shift;
 815
 816        open my $fd, "$projectroot/$path/cloneurl" or return;
 817        my @git_project_url_list = map { chomp; $_ } <$fd>;
 818        close $fd;
 819
 820        return wantarray ? @git_project_url_list : \@git_project_url_list;
 821}
 822
 823sub git_get_projects_list {
 824        my @list;
 825
 826        if (-d $projects_list) {
 827                # search in directory
 828                my $dir = $projects_list;
 829                my $pfxlen = length("$dir");
 830
 831                File::Find::find({
 832                        follow_fast => 1, # follow symbolic links
 833                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 834                        wanted => sub {
 835                                # skip project-list toplevel, if we get it.
 836                                return if (m!^[/.]$!);
 837                                # only directories can be git repositories
 838                                return unless (-d $_);
 839
 840                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 841                                # we check related file in $projectroot
 842                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 843                                    -e "$projectroot/$subdir/$export_ok")) {
 844                                        push @list, { path => $subdir };
 845                                        $File::Find::prune = 1;
 846                                }
 847                        },
 848                }, "$dir");
 849
 850        } elsif (-f $projects_list) {
 851                # read from file(url-encoded):
 852                # 'git%2Fgit.git Linus+Torvalds'
 853                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 854                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 855                open my ($fd), $projects_list or return;
 856                while (my $line = <$fd>) {
 857                        chomp $line;
 858                        my ($path, $owner) = split ' ', $line;
 859                        $path = unescape($path);
 860                        $owner = unescape($owner);
 861                        if (!defined $path) {
 862                                next;
 863                        }
 864                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 865                            -e "$projectroot/$path/$export_ok")) {
 866                                my $pr = {
 867                                        path => $path,
 868                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 869                                };
 870                                push @list, $pr
 871                        }
 872                }
 873                close $fd;
 874        }
 875        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 876        return @list;
 877}
 878
 879sub git_get_project_owner {
 880        my $project = shift;
 881        my $owner;
 882
 883        return undef unless $project;
 884
 885        # read from file (url-encoded):
 886        # 'git%2Fgit.git Linus+Torvalds'
 887        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 888        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 889        if (-f $projects_list) {
 890                open (my $fd , $projects_list);
 891                while (my $line = <$fd>) {
 892                        chomp $line;
 893                        my ($pr, $ow) = split ' ', $line;
 894                        $pr = unescape($pr);
 895                        $ow = unescape($ow);
 896                        if ($pr eq $project) {
 897                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 898                                last;
 899                        }
 900                }
 901                close $fd;
 902        }
 903        if (!defined $owner) {
 904                $owner = get_file_owner("$projectroot/$project");
 905        }
 906
 907        return $owner;
 908}
 909
 910sub git_get_references {
 911        my $type = shift || "";
 912        my %refs;
 913        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 914        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 915        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 916                or return;
 917
 918        while (my $line = <$fd>) {
 919                chomp $line;
 920                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 921                        if (defined $refs{$1}) {
 922                                push @{$refs{$1}}, $2;
 923                        } else {
 924                                $refs{$1} = [ $2 ];
 925                        }
 926                }
 927        }
 928        close $fd or return;
 929        return \%refs;
 930}
 931
 932sub git_get_rev_name_tags {
 933        my $hash = shift || return undef;
 934
 935        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 936                or return;
 937        my $name_rev = <$fd>;
 938        close $fd;
 939
 940        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 941                return $1;
 942        } else {
 943                # catches also '$hash undefined' output
 944                return undef;
 945        }
 946}
 947
 948## ----------------------------------------------------------------------
 949## parse to hash functions
 950
 951sub parse_date {
 952        my $epoch = shift;
 953        my $tz = shift || "-0000";
 954
 955        my %date;
 956        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 957        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 958        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 959        $date{'hour'} = $hour;
 960        $date{'minute'} = $min;
 961        $date{'mday'} = $mday;
 962        $date{'day'} = $days[$wday];
 963        $date{'month'} = $months[$mon];
 964        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 965                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 966        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 967                             $mday, $months[$mon], $hour ,$min;
 968
 969        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 970        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 971        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 972        $date{'hour_local'} = $hour;
 973        $date{'minute_local'} = $min;
 974        $date{'tz_local'} = $tz;
 975        return %date;
 976}
 977
 978sub parse_tag {
 979        my $tag_id = shift;
 980        my %tag;
 981        my @comment;
 982
 983        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 984        $tag{'id'} = $tag_id;
 985        while (my $line = <$fd>) {
 986                chomp $line;
 987                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 988                        $tag{'object'} = $1;
 989                } elsif ($line =~ m/^type (.+)$/) {
 990                        $tag{'type'} = $1;
 991                } elsif ($line =~ m/^tag (.+)$/) {
 992                        $tag{'name'} = $1;
 993                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 994                        $tag{'author'} = $1;
 995                        $tag{'epoch'} = $2;
 996                        $tag{'tz'} = $3;
 997                } elsif ($line =~ m/--BEGIN/) {
 998                        push @comment, $line;
 999                        last;
1000                } elsif ($line eq "") {
1001                        last;
1002                }
1003        }
1004        push @comment, <$fd>;
1005        $tag{'comment'} = \@comment;
1006        close $fd or return;
1007        if (!defined $tag{'name'}) {
1008                return
1009        };
1010        return %tag
1011}
1012
1013sub parse_commit {
1014        my $commit_id = shift;
1015        my $commit_text = shift;
1016
1017        my @commit_lines;
1018        my %co;
1019
1020        if (defined $commit_text) {
1021                @commit_lines = @$commit_text;
1022        } else {
1023                $/ = "\0";
1024                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1025                        or return;
1026                @commit_lines = split '\n', <$fd>;
1027                close $fd or return;
1028                $/ = "\n";
1029                pop @commit_lines;
1030        }
1031        my $header = shift @commit_lines;
1032        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1033                return;
1034        }
1035        ($co{'id'}, my @parents) = split ' ', $header;
1036        $co{'parents'} = \@parents;
1037        $co{'parent'} = $parents[0];
1038        while (my $line = shift @commit_lines) {
1039                last if $line eq "\n";
1040                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1041                        $co{'tree'} = $1;
1042                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1043                        $co{'author'} = $1;
1044                        $co{'author_epoch'} = $2;
1045                        $co{'author_tz'} = $3;
1046                        if ($co{'author'} =~ m/^([^<]+) </) {
1047                                $co{'author_name'} = $1;
1048                        } else {
1049                                $co{'author_name'} = $co{'author'};
1050                        }
1051                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1052                        $co{'committer'} = $1;
1053                        $co{'committer_epoch'} = $2;
1054                        $co{'committer_tz'} = $3;
1055                        $co{'committer_name'} = $co{'committer'};
1056                        $co{'committer_name'} =~ s/ <.*//;
1057                }
1058        }
1059        if (!defined $co{'tree'}) {
1060                return;
1061        };
1062
1063        foreach my $title (@commit_lines) {
1064                $title =~ s/^    //;
1065                if ($title ne "") {
1066                        $co{'title'} = chop_str($title, 80, 5);
1067                        # remove leading stuff of merges to make the interesting part visible
1068                        if (length($title) > 50) {
1069                                $title =~ s/^Automatic //;
1070                                $title =~ s/^merge (of|with) /Merge ... /i;
1071                                if (length($title) > 50) {
1072                                        $title =~ s/(http|rsync):\/\///;
1073                                }
1074                                if (length($title) > 50) {
1075                                        $title =~ s/(master|www|rsync)\.//;
1076                                }
1077                                if (length($title) > 50) {
1078                                        $title =~ s/kernel.org:?//;
1079                                }
1080                                if (length($title) > 50) {
1081                                        $title =~ s/\/pub\/scm//;
1082                                }
1083                        }
1084                        $co{'title_short'} = chop_str($title, 50, 5);
1085                        last;
1086                }
1087        }
1088        # remove added spaces
1089        foreach my $line (@commit_lines) {
1090                $line =~ s/^    //;
1091        }
1092        $co{'comment'} = \@commit_lines;
1093
1094        my $age = time - $co{'committer_epoch'};
1095        $co{'age'} = $age;
1096        $co{'age_string'} = age_string($age);
1097        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1098        if ($age > 60*60*24*7*2) {
1099                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1100                $co{'age_string_age'} = $co{'age_string'};
1101        } else {
1102                $co{'age_string_date'} = $co{'age_string'};
1103                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1104        }
1105        return %co;
1106}
1107
1108# parse ref from ref_file, given by ref_id, with given type
1109sub parse_ref {
1110        my $ref_file = shift;
1111        my $ref_id = shift;
1112        my $type = shift || git_get_type($ref_id);
1113        my %ref_item;
1114
1115        $ref_item{'type'} = $type;
1116        $ref_item{'id'} = $ref_id;
1117        $ref_item{'epoch'} = 0;
1118        $ref_item{'age'} = "unknown";
1119        if ($type eq "tag") {
1120                my %tag = parse_tag($ref_id);
1121                $ref_item{'comment'} = $tag{'comment'};
1122                if ($tag{'type'} eq "commit") {
1123                        my %co = parse_commit($tag{'object'});
1124                        $ref_item{'epoch'} = $co{'committer_epoch'};
1125                        $ref_item{'age'} = $co{'age_string'};
1126                } elsif (defined($tag{'epoch'})) {
1127                        my $age = time - $tag{'epoch'};
1128                        $ref_item{'epoch'} = $tag{'epoch'};
1129                        $ref_item{'age'} = age_string($age);
1130                }
1131                $ref_item{'reftype'} = $tag{'type'};
1132                $ref_item{'name'} = $tag{'name'};
1133                $ref_item{'refid'} = $tag{'object'};
1134        } elsif ($type eq "commit"){
1135                my %co = parse_commit($ref_id);
1136                $ref_item{'reftype'} = "commit";
1137                $ref_item{'name'} = $ref_file;
1138                $ref_item{'title'} = $co{'title'};
1139                $ref_item{'refid'} = $ref_id;
1140                $ref_item{'epoch'} = $co{'committer_epoch'};
1141                $ref_item{'age'} = $co{'age_string'};
1142        } else {
1143                $ref_item{'reftype'} = $type;
1144                $ref_item{'name'} = $ref_file;
1145                $ref_item{'refid'} = $ref_id;
1146        }
1147
1148        return %ref_item;
1149}
1150
1151# parse line of git-diff-tree "raw" output
1152sub parse_difftree_raw_line {
1153        my $line = shift;
1154        my %res;
1155
1156        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1157        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1158        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1159                $res{'from_mode'} = $1;
1160                $res{'to_mode'} = $2;
1161                $res{'from_id'} = $3;
1162                $res{'to_id'} = $4;
1163                $res{'status'} = $5;
1164                $res{'similarity'} = $6;
1165                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1166                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1167                } else {
1168                        $res{'file'} = unquote($7);
1169                }
1170        }
1171        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1172        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1173                $res{'commit'} = $1;
1174        }
1175
1176        return wantarray ? %res : \%res;
1177}
1178
1179# parse line of git-ls-tree output
1180sub parse_ls_tree_line ($;%) {
1181        my $line = shift;
1182        my %opts = @_;
1183        my %res;
1184
1185        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1186        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1187
1188        $res{'mode'} = $1;
1189        $res{'type'} = $2;
1190        $res{'hash'} = $3;
1191        if ($opts{'-z'}) {
1192                $res{'name'} = $4;
1193        } else {
1194                $res{'name'} = unquote($4);
1195        }
1196
1197        return wantarray ? %res : \%res;
1198}
1199
1200## ......................................................................
1201## parse to array of hashes functions
1202
1203sub git_get_refs_list {
1204        my $type = shift || "";
1205        my %refs;
1206        my @reflist;
1207
1208        my @refs;
1209        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1210                or return;
1211        while (my $line = <$fd>) {
1212                chomp $line;
1213                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1214                        if (defined $refs{$1}) {
1215                                push @{$refs{$1}}, $2;
1216                        } else {
1217                                $refs{$1} = [ $2 ];
1218                        }
1219
1220                        if (! $4) { # unpeeled, direct reference
1221                                push @refs, { hash => $1, name => $3 }; # without type
1222                        } elsif ($3 eq $refs[-1]{'name'}) {
1223                                # most likely a tag is followed by its peeled
1224                                # (deref) one, and when that happens we know the
1225                                # previous one was of type 'tag'.
1226                                $refs[-1]{'type'} = "tag";
1227                        }
1228                }
1229        }
1230        close $fd;
1231
1232        foreach my $ref (@refs) {
1233                my $ref_file = $ref->{'name'};
1234                my $ref_id   = $ref->{'hash'};
1235
1236                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1237                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1238
1239                push @reflist, \%ref_item;
1240        }
1241        # sort refs by age
1242        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1243        return (\@reflist, \%refs);
1244}
1245
1246## ----------------------------------------------------------------------
1247## filesystem-related functions
1248
1249sub get_file_owner {
1250        my $path = shift;
1251
1252        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1253        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1254        if (!defined $gcos) {
1255                return undef;
1256        }
1257        my $owner = $gcos;
1258        $owner =~ s/[,;].*$//;
1259        return decode("utf8", $owner, Encode::FB_DEFAULT);
1260}
1261
1262## ......................................................................
1263## mimetype related functions
1264
1265sub mimetype_guess_file {
1266        my $filename = shift;
1267        my $mimemap = shift;
1268        -r $mimemap or return undef;
1269
1270        my %mimemap;
1271        open(MIME, $mimemap) or return undef;
1272        while (<MIME>) {
1273                next if m/^#/; # skip comments
1274                my ($mime, $exts) = split(/\t+/);
1275                if (defined $exts) {
1276                        my @exts = split(/\s+/, $exts);
1277                        foreach my $ext (@exts) {
1278                                $mimemap{$ext} = $mime;
1279                        }
1280                }
1281        }
1282        close(MIME);
1283
1284        $filename =~ /\.([^.]*)$/;
1285        return $mimemap{$1};
1286}
1287
1288sub mimetype_guess {
1289        my $filename = shift;
1290        my $mime;
1291        $filename =~ /\./ or return undef;
1292
1293        if ($mimetypes_file) {
1294                my $file = $mimetypes_file;
1295                if ($file !~ m!^/!) { # if it is relative path
1296                        # it is relative to project
1297                        $file = "$projectroot/$project/$file";
1298                }
1299                $mime = mimetype_guess_file($filename, $file);
1300        }
1301        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1302        return $mime;
1303}
1304
1305sub blob_mimetype {
1306        my $fd = shift;
1307        my $filename = shift;
1308
1309        if ($filename) {
1310                my $mime = mimetype_guess($filename);
1311                $mime and return $mime;
1312        }
1313
1314        # just in case
1315        return $default_blob_plain_mimetype unless $fd;
1316
1317        if (-T $fd) {
1318                return 'text/plain' .
1319                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1320        } elsif (! $filename) {
1321                return 'application/octet-stream';
1322        } elsif ($filename =~ m/\.png$/i) {
1323                return 'image/png';
1324        } elsif ($filename =~ m/\.gif$/i) {
1325                return 'image/gif';
1326        } elsif ($filename =~ m/\.jpe?g$/i) {
1327                return 'image/jpeg';
1328        } else {
1329                return 'application/octet-stream';
1330        }
1331}
1332
1333## ======================================================================
1334## functions printing HTML: header, footer, error page
1335
1336sub git_header_html {
1337        my $status = shift || "200 OK";
1338        my $expires = shift;
1339
1340        my $title = "$site_name git";
1341        if (defined $project) {
1342                $title .= " - $project";
1343                if (defined $action) {
1344                        $title .= "/$action";
1345                        if (defined $file_name) {
1346                                $title .= " - " . esc_html($file_name);
1347                                if ($action eq "tree" && $file_name !~ m|/$|) {
1348                                        $title .= "/";
1349                                }
1350                        }
1351                }
1352        }
1353        my $content_type;
1354        # require explicit support from the UA if we are to send the page as
1355        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1356        # we have to do this because MSIE sometimes globs '*/*', pretending to
1357        # support xhtml+xml but choking when it gets what it asked for.
1358        if (defined $cgi->http('HTTP_ACCEPT') &&
1359            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1360            $cgi->Accept('application/xhtml+xml') != 0) {
1361                $content_type = 'application/xhtml+xml';
1362        } else {
1363                $content_type = 'text/html';
1364        }
1365        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1366                           -status=> $status, -expires => $expires);
1367        print <<EOF;
1368<?xml version="1.0" encoding="utf-8"?>
1369<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1370<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1371<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1372<!-- git core binaries version $git_version -->
1373<head>
1374<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1375<meta name="generator" content="gitweb/$version git/$git_version"/>
1376<meta name="robots" content="index, nofollow"/>
1377<title>$title</title>
1378<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1379EOF
1380        if (defined $project) {
1381                printf('<link rel="alternate" title="%s log" '.
1382                       'href="%s" type="application/rss+xml"/>'."\n",
1383                       esc_param($project), href(action=>"rss"));
1384        } else {
1385                printf('<link rel="alternate" title="%s projects list" '.
1386                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1387                       $site_name, href(project=>undef, action=>"project_index"));
1388                printf('<link rel="alternate" title="%s projects logs" '.
1389                       'href="%s" type="text/x-opml"/>'."\n",
1390                       $site_name, href(project=>undef, action=>"opml"));
1391        }
1392        if (defined $favicon) {
1393                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1394        }
1395
1396        print "</head>\n" .
1397              "<body>\n" .
1398              "<div class=\"page_header\">\n" .
1399              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1400              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1401              "</a>\n";
1402        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1403        if (defined $project) {
1404                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1405                if (defined $action) {
1406                        print " / $action";
1407                }
1408                print "\n";
1409                if (!defined $searchtext) {
1410                        $searchtext = "";
1411                }
1412                my $search_hash;
1413                if (defined $hash_base) {
1414                        $search_hash = $hash_base;
1415                } elsif (defined $hash) {
1416                        $search_hash = $hash;
1417                } else {
1418                        $search_hash = "HEAD";
1419                }
1420                $cgi->param("a", "search");
1421                $cgi->param("h", $search_hash);
1422                print $cgi->startform(-method => "get", -action => $my_uri) .
1423                      "<div class=\"search\">\n" .
1424                      $cgi->hidden(-name => "p") . "\n" .
1425                      $cgi->hidden(-name => "a") . "\n" .
1426                      $cgi->hidden(-name => "h") . "\n" .
1427                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1428                      "</div>" .
1429                      $cgi->end_form() . "\n";
1430        }
1431        print "</div>\n";
1432}
1433
1434sub git_footer_html {
1435        print "<div class=\"page_footer\">\n";
1436        if (defined $project) {
1437                my $descr = git_get_project_description($project);
1438                if (defined $descr) {
1439                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1440                }
1441                print $cgi->a({-href => href(action=>"rss"),
1442                              -class => "rss_logo"}, "RSS") . "\n";
1443        } else {
1444                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1445                              -class => "rss_logo"}, "OPML") . " ";
1446                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1447                              -class => "rss_logo"}, "TXT") . "\n";
1448        }
1449        print "</div>\n" .
1450              "</body>\n" .
1451              "</html>";
1452}
1453
1454sub die_error {
1455        my $status = shift || "403 Forbidden";
1456        my $error = shift || "Malformed query, file missing or permission denied";
1457
1458        git_header_html($status);
1459        print <<EOF;
1460<div class="page_body">
1461<br /><br />
1462$status - $error
1463<br />
1464</div>
1465EOF
1466        git_footer_html();
1467        exit;
1468}
1469
1470## ----------------------------------------------------------------------
1471## functions printing or outputting HTML: navigation
1472
1473sub git_print_page_nav {
1474        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1475        $extra = '' if !defined $extra; # pager or formats
1476
1477        my @navs = qw(summary shortlog log commit commitdiff tree);
1478        if ($suppress) {
1479                @navs = grep { $_ ne $suppress } @navs;
1480        }
1481
1482        my %arg = map { $_ => {action=>$_} } @navs;
1483        if (defined $head) {
1484                for (qw(commit commitdiff)) {
1485                        $arg{$_}{hash} = $head;
1486                }
1487                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1488                        for (qw(shortlog log)) {
1489                                $arg{$_}{hash} = $head;
1490                        }
1491                }
1492        }
1493        $arg{tree}{hash} = $treehead if defined $treehead;
1494        $arg{tree}{hash_base} = $treebase if defined $treebase;
1495
1496        print "<div class=\"page_nav\">\n" .
1497                (join " | ",
1498                 map { $_ eq $current ?
1499                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1500                 } @navs);
1501        print "<br/>\n$extra<br/>\n" .
1502              "</div>\n";
1503}
1504
1505sub format_paging_nav {
1506        my ($action, $hash, $head, $page, $nrevs) = @_;
1507        my $paging_nav;
1508
1509
1510        if ($hash ne $head || $page) {
1511                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1512        } else {
1513                $paging_nav .= "HEAD";
1514        }
1515
1516        if ($page > 0) {
1517                $paging_nav .= " &sdot; " .
1518                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1519                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1520        } else {
1521                $paging_nav .= " &sdot; prev";
1522        }
1523
1524        if ($nrevs >= (100 * ($page+1)-1)) {
1525                $paging_nav .= " &sdot; " .
1526                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1527                                 -accesskey => "n", -title => "Alt-n"}, "next");
1528        } else {
1529                $paging_nav .= " &sdot; next";
1530        }
1531
1532        return $paging_nav;
1533}
1534
1535## ......................................................................
1536## functions printing or outputting HTML: div
1537
1538sub git_print_header_div {
1539        my ($action, $title, $hash, $hash_base) = @_;
1540        my %args = ();
1541
1542        $args{action} = $action;
1543        $args{hash} = $hash if $hash;
1544        $args{hash_base} = $hash_base if $hash_base;
1545
1546        print "<div class=\"header\">\n" .
1547              $cgi->a({-href => href(%args), -class => "title"},
1548              $title ? $title : $action) .
1549              "\n</div>\n";
1550}
1551
1552#sub git_print_authorship (\%) {
1553sub git_print_authorship {
1554        my $co = shift;
1555
1556        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1557        print "<div class=\"author_date\">" .
1558              esc_html($co->{'author_name'}) .
1559              " [$ad{'rfc2822'}";
1560        if ($ad{'hour_local'} < 6) {
1561                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1562                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1563        } else {
1564                printf(" (%02d:%02d %s)",
1565                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1566        }
1567        print "]</div>\n";
1568}
1569
1570sub git_print_page_path {
1571        my $name = shift;
1572        my $type = shift;
1573        my $hb = shift;
1574
1575        if (!defined $name) {
1576                print "<div class=\"page_path\">/</div>\n";
1577        } else {
1578                my @dirname = split '/', $name;
1579                my $basename = pop @dirname;
1580                my $fullname = '';
1581
1582                print "<div class=\"page_path\">";
1583                print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1584                              -title => 'tree root'}, "[$project]");
1585                print " / ";
1586                foreach my $dir (@dirname) {
1587                        $fullname .= ($fullname ? '/' : '') . $dir;
1588                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1589                                                     hash_base=>$hb),
1590                                      -title => $fullname}, esc_html($dir));
1591                        print " / ";
1592                }
1593                if (defined $type && $type eq 'blob') {
1594                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1595                                                     hash_base=>$hb),
1596                                      -title => $name}, esc_html($basename));
1597                } elsif (defined $type && $type eq 'tree') {
1598                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1599                                                     hash_base=>$hb),
1600                                      -title => $name}, esc_html($basename));
1601                } else {
1602                        print esc_html($basename);
1603                }
1604                print "<br/></div>\n";
1605        }
1606}
1607
1608# sub git_print_log (\@;%) {
1609sub git_print_log ($;%) {
1610        my $log = shift;
1611        my %opts = @_;
1612
1613        if ($opts{'-remove_title'}) {
1614                # remove title, i.e. first line of log
1615                shift @$log;
1616        }
1617        # remove leading empty lines
1618        while (defined $log->[0] && $log->[0] eq "") {
1619                shift @$log;
1620        }
1621
1622        # print log
1623        my $signoff = 0;
1624        my $empty = 0;
1625        foreach my $line (@$log) {
1626                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1627                        $signoff = 1;
1628                        $empty = 0;
1629                        if (! $opts{'-remove_signoff'}) {
1630                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1631                                next;
1632                        } else {
1633                                # remove signoff lines
1634                                next;
1635                        }
1636                } else {
1637                        $signoff = 0;
1638                }
1639
1640                # print only one empty line
1641                # do not print empty line after signoff
1642                if ($line eq "") {
1643                        next if ($empty || $signoff);
1644                        $empty = 1;
1645                } else {
1646                        $empty = 0;
1647                }
1648
1649                print format_log_line_html($line) . "<br/>\n";
1650        }
1651
1652        if ($opts{'-final_empty_line'}) {
1653                # end with single empty line
1654                print "<br/>\n" unless $empty;
1655        }
1656}
1657
1658sub git_print_simplified_log {
1659        my $log = shift;
1660        my $remove_title = shift;
1661
1662        git_print_log($log,
1663                -final_empty_line=> 1,
1664                -remove_title => $remove_title);
1665}
1666
1667# print tree entry (row of git_tree), but without encompassing <tr> element
1668sub git_print_tree_entry {
1669        my ($t, $basedir, $hash_base, $have_blame) = @_;
1670
1671        my %base_key = ();
1672        $base_key{hash_base} = $hash_base if defined $hash_base;
1673
1674        # The format of a table row is: mode list link.  Where mode is
1675        # the mode of the entry, list is the name of the entry, an href,
1676        # and link is the action links of the entry.
1677
1678        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1679        if ($t->{'type'} eq "blob") {
1680                print "<td class=\"list\">" .
1681                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1682                                               file_name=>"$basedir$t->{'name'}", %base_key),
1683                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1684                print "<td class=\"link\">";
1685                if ($have_blame) {
1686                        print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1687                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
1688                                      "blame");
1689                }
1690                if (defined $hash_base) {
1691                        if ($have_blame) {
1692                                print " | ";
1693                        }
1694                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1695                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1696                                      "history");
1697                }
1698                print " | " .
1699                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1700                                               file_name=>"$basedir$t->{'name'}")},
1701                                "raw");
1702                print "</td>\n";
1703
1704        } elsif ($t->{'type'} eq "tree") {
1705                print "<td class=\"list\">";
1706                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1707                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1708                              esc_html($t->{'name'}));
1709                print "</td>\n";
1710                print "<td class=\"link\">";
1711                if (defined $hash_base) {
1712                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1713                                                     file_name=>"$basedir$t->{'name'}")},
1714                                      "history");
1715                }
1716                print "</td>\n";
1717        }
1718}
1719
1720## ......................................................................
1721## functions printing large fragments of HTML
1722
1723sub git_difftree_body {
1724        my ($difftree, $hash, $parent) = @_;
1725
1726        print "<div class=\"list_head\">\n";
1727        if ($#{$difftree} > 10) {
1728                print(($#{$difftree} + 1) . " files changed:\n");
1729        }
1730        print "</div>\n";
1731
1732        print "<table class=\"diff_tree\">\n";
1733        my $alternate = 1;
1734        my $patchno = 0;
1735        foreach my $line (@{$difftree}) {
1736                my %diff = parse_difftree_raw_line($line);
1737
1738                if ($alternate) {
1739                        print "<tr class=\"dark\">\n";
1740                } else {
1741                        print "<tr class=\"light\">\n";
1742                }
1743                $alternate ^= 1;
1744
1745                my ($to_mode_oct, $to_mode_str, $to_file_type);
1746                my ($from_mode_oct, $from_mode_str, $from_file_type);
1747                if ($diff{'to_mode'} ne ('0' x 6)) {
1748                        $to_mode_oct = oct $diff{'to_mode'};
1749                        if (S_ISREG($to_mode_oct)) { # only for regular file
1750                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1751                        }
1752                        $to_file_type = file_type($diff{'to_mode'});
1753                }
1754                if ($diff{'from_mode'} ne ('0' x 6)) {
1755                        $from_mode_oct = oct $diff{'from_mode'};
1756                        if (S_ISREG($to_mode_oct)) { # only for regular file
1757                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1758                        }
1759                        $from_file_type = file_type($diff{'from_mode'});
1760                }
1761
1762                if ($diff{'status'} eq "A") { # created
1763                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1764                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1765                        $mode_chng   .= "]</span>";
1766                        print "<td>";
1767                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1768                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1769                                       -class => "list"}, esc_html($diff{'file'}));
1770                        print "</td>\n";
1771                        print "<td>$mode_chng</td>\n";
1772                        print "<td class=\"link\">";
1773                        if ($action eq 'commitdiff') {
1774                                # link to patch
1775                                $patchno++;
1776                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1777                        }
1778                        print "</td>\n";
1779
1780                } elsif ($diff{'status'} eq "D") { # deleted
1781                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1782                        print "<td>";
1783                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1784                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1785                                       -class => "list"}, esc_html($diff{'file'}));
1786                        print "</td>\n";
1787                        print "<td>$mode_chng</td>\n";
1788                        print "<td class=\"link\">";
1789                        if ($action eq 'commitdiff') {
1790                                # link to patch
1791                                $patchno++;
1792                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1793                                print " | ";
1794                        }
1795                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1796                                                     file_name=>$diff{'file'})},
1797                                      "blame") . " | ";
1798                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1799                                                     file_name=>$diff{'file'})},
1800                                      "history");
1801                        print "</td>\n";
1802
1803                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1804                        my $mode_chnge = "";
1805                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1806                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1807                                if ($from_file_type != $to_file_type) {
1808                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1809                                }
1810                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1811                                        if ($from_mode_str && $to_mode_str) {
1812                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1813                                        } elsif ($to_mode_str) {
1814                                                $mode_chnge .= " mode: $to_mode_str";
1815                                        }
1816                                }
1817                                $mode_chnge .= "]</span>\n";
1818                        }
1819                        print "<td>";
1820                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1821                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1822                                       -class => "list"}, esc_html($diff{'file'}));
1823                        print "</td>\n";
1824                        print "<td>$mode_chnge</td>\n";
1825                        print "<td class=\"link\">";
1826                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1827                                if ($action eq 'commitdiff') {
1828                                        # link to patch
1829                                        $patchno++;
1830                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1831                                } else {
1832                                        print $cgi->a({-href => href(action=>"blobdiff",
1833                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1834                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1835                                                                     file_name=>$diff{'file'})},
1836                                                      "diff");
1837                                }
1838                                print " | ";
1839                        }
1840                        print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1841                                                     file_name=>$diff{'file'})},
1842                                      "blame") . " | ";
1843                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1844                                                     file_name=>$diff{'file'})},
1845                                      "history");
1846                        print "</td>\n";
1847
1848                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1849                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1850                        my $nstatus = $status_name{$diff{'status'}};
1851                        my $mode_chng = "";
1852                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1853                                # mode also for directories, so we cannot use $to_mode_str
1854                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1855                        }
1856                        print "<td>" .
1857                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1858                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1859                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1860                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1861                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1862                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1863                                      -class => "list"}, esc_html($diff{'from_file'})) .
1864                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1865                              "<td class=\"link\">";
1866                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1867                                if ($action eq 'commitdiff') {
1868                                        # link to patch
1869                                        $patchno++;
1870                                        print $cgi->a({-href => "#patch$patchno"}, "patch");
1871                                } else {
1872                                        print $cgi->a({-href => href(action=>"blobdiff",
1873                                                                     hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1874                                                                     hash_base=>$hash, hash_parent_base=>$parent,
1875                                                                     file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1876                                                      "diff");
1877                                }
1878                                print " | ";
1879                        }
1880                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1881                                                     file_name=>$diff{'from_file'})},
1882                                      "blame") . " | ";
1883                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1884                                                     file_name=>$diff{'from_file'})},
1885                                      "history");
1886                        print "</td>\n";
1887
1888                } # we should not encounter Unmerged (U) or Unknown (X) status
1889                print "</tr>\n";
1890        }
1891        print "</table>\n";
1892}
1893
1894sub git_patchset_body {
1895        my ($fd, $difftree, $hash, $hash_parent) = @_;
1896
1897        my $patch_idx = 0;
1898        my $in_header = 0;
1899        my $patch_found = 0;
1900        my $diffinfo;
1901
1902        print "<div class=\"patchset\">\n";
1903
1904        LINE:
1905        while (my $patch_line = <$fd>) {
1906                chomp $patch_line;
1907
1908                if ($patch_line =~ m/^diff /) { # "git diff" header
1909                        # beginning of patch (in patchset)
1910                        if ($patch_found) {
1911                                # close previous patch
1912                                print "</div>\n"; # class="patch"
1913                        } else {
1914                                # first patch in patchset
1915                                $patch_found = 1;
1916                        }
1917                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1918
1919                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1920                                $diffinfo = $difftree->[$patch_idx];
1921                        } else {
1922                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1923                        }
1924                        $patch_idx++;
1925
1926                        # for now, no extended header, hence we skip empty patches
1927                        # companion to  next LINE if $in_header;
1928                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1929                                $in_header = 1;
1930                                next LINE;
1931                        }
1932
1933                        if ($diffinfo->{'status'} eq "A") { # added
1934                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1935                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1936                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1937                                              $diffinfo->{'to_id'}) . "(new)" .
1938                                      "</div>\n"; # class="diff_info"
1939
1940                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1941                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1942                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1943                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1944                                              $diffinfo->{'from_id'}) . "(deleted)" .
1945                                      "</div>\n"; # class="diff_info"
1946
1947                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1948                                 $diffinfo->{'status'} eq "C" || # copied
1949                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1950                                print "<div class=\"diff_info\">" .
1951                                      file_type($diffinfo->{'from_mode'}) . ":" .
1952                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1953                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1954                                              $diffinfo->{'from_id'}) .
1955                                      " -> " .
1956                                      file_type($diffinfo->{'to_mode'}) . ":" .
1957                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1958                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1959                                              $diffinfo->{'to_id'});
1960                                print "</div>\n"; # class="diff_info"
1961
1962                        } else { # modified, mode changed, ...
1963                                print "<div class=\"diff_info\">" .
1964                                      file_type($diffinfo->{'from_mode'}) . ":" .
1965                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1966                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1967                                              $diffinfo->{'from_id'}) .
1968                                      " -> " .
1969                                      file_type($diffinfo->{'to_mode'}) . ":" .
1970                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1971                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1972                                              $diffinfo->{'to_id'});
1973                                print "</div>\n"; # class="diff_info"
1974                        }
1975
1976                        #print "<div class=\"diff extended_header\">\n";
1977                        $in_header = 1;
1978                        next LINE;
1979                } # start of patch in patchset
1980
1981
1982                if ($in_header && $patch_line =~ m/^---/) {
1983                        #print "</div>\n"; # class="diff extended_header"
1984                        $in_header = 0;
1985
1986                        my $file = $diffinfo->{'from_file'};
1987                        $file  ||= $diffinfo->{'file'};
1988                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1989                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1990                                        -class => "list"}, esc_html($file));
1991                        $patch_line =~ s|a/.*$|a/$file|g;
1992                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1993
1994                        $patch_line = <$fd>;
1995                        chomp $patch_line;
1996
1997                        #$patch_line =~ m/^+++/;
1998                        $file    = $diffinfo->{'to_file'};
1999                        $file  ||= $diffinfo->{'file'};
2000                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2001                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
2002                                        -class => "list"}, esc_html($file));
2003                        $patch_line =~ s|b/.*|b/$file|g;
2004                        print "<div class=\"diff to_file\">$patch_line</div>\n";
2005
2006                        next LINE;
2007                }
2008                next LINE if $in_header;
2009
2010                print format_diff_line($patch_line);
2011        }
2012        print "</div>\n" if $patch_found; # class="patch"
2013
2014        print "</div>\n"; # class="patchset"
2015}
2016
2017# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2018
2019sub git_shortlog_body {
2020        # uses global variable $project
2021        my ($revlist, $from, $to, $refs, $extra) = @_;
2022
2023        $from = 0 unless defined $from;
2024        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2025
2026        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2027        my $alternate = 1;
2028        for (my $i = $from; $i <= $to; $i++) {
2029                my $commit = $revlist->[$i];
2030                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2031                my $ref = format_ref_marker($refs, $commit);
2032                my %co = parse_commit($commit);
2033                if ($alternate) {
2034                        print "<tr class=\"dark\">\n";
2035                } else {
2036                        print "<tr class=\"light\">\n";
2037                }
2038                $alternate ^= 1;
2039                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2040                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2041                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2042                      "<td>";
2043                print format_subject_html($co{'title'}, $co{'title_short'},
2044                                          href(action=>"commit", hash=>$commit), $ref);
2045                print "</td>\n" .
2046                      "<td class=\"link\">" .
2047                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2048                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2049                      $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2050                print "</td>\n" .
2051                      "</tr>\n";
2052        }
2053        if (defined $extra) {
2054                print "<tr>\n" .
2055                      "<td colspan=\"4\">$extra</td>\n" .
2056                      "</tr>\n";
2057        }
2058        print "</table>\n";
2059}
2060
2061sub git_history_body {
2062        # Warning: assumes constant type (blob or tree) during history
2063        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2064
2065        $from = 0 unless defined $from;
2066        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2067
2068        print "<table class=\"history\" cellspacing=\"0\">\n";
2069        my $alternate = 1;
2070        for (my $i = $from; $i <= $to; $i++) {
2071                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2072                        next;
2073                }
2074
2075                my $commit = $1;
2076                my %co = parse_commit($commit);
2077                if (!%co) {
2078                        next;
2079                }
2080
2081                my $ref = format_ref_marker($refs, $commit);
2082
2083                if ($alternate) {
2084                        print "<tr class=\"dark\">\n";
2085                } else {
2086                        print "<tr class=\"light\">\n";
2087                }
2088                $alternate ^= 1;
2089                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2090                      # shortlog uses      chop_str($co{'author_name'}, 10)
2091                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2092                      "<td>";
2093                # originally git_history used chop_str($co{'title'}, 50)
2094                print format_subject_html($co{'title'}, $co{'title_short'},
2095                                          href(action=>"commit", hash=>$commit), $ref);
2096                print "</td>\n" .
2097                      "<td class=\"link\">" .
2098                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2099                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2100
2101                if ($ftype eq 'blob') {
2102                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2103                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2104                        if (defined $blob_current && defined $blob_parent &&
2105                                        $blob_current ne $blob_parent) {
2106                                print " | " .
2107                                        $cgi->a({-href => href(action=>"blobdiff",
2108                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2109                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2110                                                               file_name=>$file_name)},
2111                                                "diff to current");
2112                        }
2113                }
2114                print "</td>\n" .
2115                      "</tr>\n";
2116        }
2117        if (defined $extra) {
2118                print "<tr>\n" .
2119                      "<td colspan=\"4\">$extra</td>\n" .
2120                      "</tr>\n";
2121        }
2122        print "</table>\n";
2123}
2124
2125sub git_tags_body {
2126        # uses global variable $project
2127        my ($taglist, $from, $to, $extra) = @_;
2128        $from = 0 unless defined $from;
2129        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2130
2131        print "<table class=\"tags\" cellspacing=\"0\">\n";
2132        my $alternate = 1;
2133        for (my $i = $from; $i <= $to; $i++) {
2134                my $entry = $taglist->[$i];
2135                my %tag = %$entry;
2136                my $comment_lines = $tag{'comment'};
2137                my $comment = shift @$comment_lines;
2138                my $comment_short;
2139                if (defined $comment) {
2140                        $comment_short = chop_str($comment, 30, 5);
2141                }
2142                if ($alternate) {
2143                        print "<tr class=\"dark\">\n";
2144                } else {
2145                        print "<tr class=\"light\">\n";
2146                }
2147                $alternate ^= 1;
2148                print "<td><i>$tag{'age'}</i></td>\n" .
2149                      "<td>" .
2150                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2151                               -class => "list name"}, esc_html($tag{'name'})) .
2152                      "</td>\n" .
2153                      "<td>";
2154                if (defined $comment) {
2155                        print format_subject_html($comment, $comment_short,
2156                                                  href(action=>"tag", hash=>$tag{'id'}));
2157                }
2158                print "</td>\n" .
2159                      "<td class=\"selflink\">";
2160                if ($tag{'type'} eq "tag") {
2161                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2162                } else {
2163                        print "&nbsp;";
2164                }
2165                print "</td>\n" .
2166                      "<td class=\"link\">" . " | " .
2167                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2168                if ($tag{'reftype'} eq "commit") {
2169                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2170                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2171                } elsif ($tag{'reftype'} eq "blob") {
2172                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2173                }
2174                print "</td>\n" .
2175                      "</tr>";
2176        }
2177        if (defined $extra) {
2178                print "<tr>\n" .
2179                      "<td colspan=\"5\">$extra</td>\n" .
2180                      "</tr>\n";
2181        }
2182        print "</table>\n";
2183}
2184
2185sub git_heads_body {
2186        # uses global variable $project
2187        my ($headlist, $head, $from, $to, $extra) = @_;
2188        $from = 0 unless defined $from;
2189        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2190
2191        print "<table class=\"heads\" cellspacing=\"0\">\n";
2192        my $alternate = 1;
2193        for (my $i = $from; $i <= $to; $i++) {
2194                my $entry = $headlist->[$i];
2195                my %tag = %$entry;
2196                my $curr = $tag{'id'} eq $head;
2197                if ($alternate) {
2198                        print "<tr class=\"dark\">\n";
2199                } else {
2200                        print "<tr class=\"light\">\n";
2201                }
2202                $alternate ^= 1;
2203                print "<td><i>$tag{'age'}</i></td>\n" .
2204                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2205                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2206                               -class => "list name"},esc_html($tag{'name'})) .
2207                      "</td>\n" .
2208                      "<td class=\"link\">" .
2209                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2210                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2211                      $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2212                      "</td>\n" .
2213                      "</tr>";
2214        }
2215        if (defined $extra) {
2216                print "<tr>\n" .
2217                      "<td colspan=\"3\">$extra</td>\n" .
2218                      "</tr>\n";
2219        }
2220        print "</table>\n";
2221}
2222
2223## ======================================================================
2224## ======================================================================
2225## actions
2226
2227sub git_project_list {
2228        my $order = $cgi->param('o');
2229        if (defined $order && $order !~ m/project|descr|owner|age/) {
2230                die_error(undef, "Unknown order parameter");
2231        }
2232
2233        my @list = git_get_projects_list();
2234        my @projects;
2235        if (!@list) {
2236                die_error(undef, "No projects found");
2237        }
2238        foreach my $pr (@list) {
2239                my $head = git_get_head_hash($pr->{'path'});
2240                if (!defined $head) {
2241                        next;
2242                }
2243                $git_dir = "$projectroot/$pr->{'path'}";
2244                my %co = parse_commit($head);
2245                if (!%co) {
2246                        next;
2247                }
2248                $pr->{'commit'} = \%co;
2249                if (!defined $pr->{'descr'}) {
2250                        my $descr = git_get_project_description($pr->{'path'}) || "";
2251                        $pr->{'descr'} = chop_str($descr, 25, 5);
2252                }
2253                if (!defined $pr->{'owner'}) {
2254                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2255                }
2256                push @projects, $pr;
2257        }
2258
2259        git_header_html();
2260        if (-f $home_text) {
2261                print "<div class=\"index_include\">\n";
2262                open (my $fd, $home_text);
2263                print <$fd>;
2264                close $fd;
2265                print "</div>\n";
2266        }
2267        print "<table class=\"project_list\">\n" .
2268              "<tr>\n";
2269        $order ||= "project";
2270        if ($order eq "project") {
2271                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2272                print "<th>Project</th>\n";
2273        } else {
2274                print "<th>" .
2275                      $cgi->a({-href => href(project=>undef, order=>'project'),
2276                               -class => "header"}, "Project") .
2277                      "</th>\n";
2278        }
2279        if ($order eq "descr") {
2280                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2281                print "<th>Description</th>\n";
2282        } else {
2283                print "<th>" .
2284                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2285                               -class => "header"}, "Description") .
2286                      "</th>\n";
2287        }
2288        if ($order eq "owner") {
2289                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2290                print "<th>Owner</th>\n";
2291        } else {
2292                print "<th>" .
2293                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2294                               -class => "header"}, "Owner") .
2295                      "</th>\n";
2296        }
2297        if ($order eq "age") {
2298                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2299                print "<th>Last Change</th>\n";
2300        } else {
2301                print "<th>" .
2302                      $cgi->a({-href => href(project=>undef, order=>'age'),
2303                               -class => "header"}, "Last Change") .
2304                      "</th>\n";
2305        }
2306        print "<th></th>\n" .
2307              "</tr>\n";
2308        my $alternate = 1;
2309        foreach my $pr (@projects) {
2310                if ($alternate) {
2311                        print "<tr class=\"dark\">\n";
2312                } else {
2313                        print "<tr class=\"light\">\n";
2314                }
2315                $alternate ^= 1;
2316                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2317                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2318                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2319                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2320                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2321                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2322                      "<td class=\"link\">" .
2323                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2324                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2325                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2326                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2327                      "</td>\n" .
2328                      "</tr>\n";
2329        }
2330        print "</table>\n";
2331        git_footer_html();
2332}
2333
2334sub git_project_index {
2335        my @projects = git_get_projects_list();
2336
2337        print $cgi->header(
2338                -type => 'text/plain',
2339                -charset => 'utf-8',
2340                -content_disposition => 'inline; filename="index.aux"');
2341
2342        foreach my $pr (@projects) {
2343                if (!exists $pr->{'owner'}) {
2344                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2345                }
2346
2347                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2348                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2349                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2350                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2351                $path  =~ s/ /\+/g;
2352                $owner =~ s/ /\+/g;
2353
2354                print "$path $owner\n";
2355        }
2356}
2357
2358sub git_summary {
2359        my $descr = git_get_project_description($project) || "none";
2360        my $head = git_get_head_hash($project);
2361        my %co = parse_commit($head);
2362        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2363
2364        my $owner = git_get_project_owner($project);
2365
2366        my ($reflist, $refs) = git_get_refs_list();
2367
2368        my @taglist;
2369        my @headlist;
2370        foreach my $ref (@$reflist) {
2371                if ($ref->{'name'} =~ s!^heads/!!) {
2372                        push @headlist, $ref;
2373                } else {
2374                        $ref->{'name'} =~ s!^tags/!!;
2375                        push @taglist, $ref;
2376                }
2377        }
2378
2379        git_header_html();
2380        git_print_page_nav('summary','', $head);
2381
2382        print "<div class=\"title\">&nbsp;</div>\n";
2383        print "<table cellspacing=\"0\">\n" .
2384              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2385              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2386              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2387        # use per project git URL list in $projectroot/$project/cloneurl
2388        # or make project git URL from git base URL and project name
2389        my $url_tag = "URL";
2390        my @url_list = git_get_project_url_list($project);
2391        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2392        foreach my $git_url (@url_list) {
2393                next unless $git_url;
2394                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2395                $url_tag = "";
2396        }
2397        print "</table>\n";
2398
2399        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2400                git_get_head_hash($project)
2401                or die_error(undef, "Open git-rev-list failed");
2402        my @revlist = map { chomp; $_ } <$fd>;
2403        close $fd;
2404        git_print_header_div('shortlog');
2405        git_shortlog_body(\@revlist, 0, 15, $refs,
2406                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2407
2408        if (@taglist) {
2409                git_print_header_div('tags');
2410                git_tags_body(\@taglist, 0, 15,
2411                              $cgi->a({-href => href(action=>"tags")}, "..."));
2412        }
2413
2414        if (@headlist) {
2415                git_print_header_div('heads');
2416                git_heads_body(\@headlist, $head, 0, 15,
2417                               $cgi->a({-href => href(action=>"heads")}, "..."));
2418        }
2419
2420        git_footer_html();
2421}
2422
2423sub git_tag {
2424        my $head = git_get_head_hash($project);
2425        git_header_html();
2426        git_print_page_nav('','', $head,undef,$head);
2427        my %tag = parse_tag($hash);
2428        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2429        print "<div class=\"title_text\">\n" .
2430              "<table cellspacing=\"0\">\n" .
2431              "<tr>\n" .
2432              "<td>object</td>\n" .
2433              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2434                               $tag{'object'}) . "</td>\n" .
2435              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2436                                              $tag{'type'}) . "</td>\n" .
2437              "</tr>\n";
2438        if (defined($tag{'author'})) {
2439                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2440                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2441                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2442                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2443                        "</td></tr>\n";
2444        }
2445        print "</table>\n\n" .
2446              "</div>\n";
2447        print "<div class=\"page_body\">";
2448        my $comment = $tag{'comment'};
2449        foreach my $line (@$comment) {
2450                print esc_html($line) . "<br/>\n";
2451        }
2452        print "</div>\n";
2453        git_footer_html();
2454}
2455
2456sub git_blame2 {
2457        my $fd;
2458        my $ftype;
2459
2460        my ($have_blame) = gitweb_check_feature('blame');
2461        if (!$have_blame) {
2462                die_error('403 Permission denied', "Permission denied");
2463        }
2464        die_error('404 Not Found', "File name not defined") if (!$file_name);
2465        $hash_base ||= git_get_head_hash($project);
2466        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2467        my %co = parse_commit($hash_base)
2468                or die_error(undef, "Reading commit failed");
2469        if (!defined $hash) {
2470                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2471                        or die_error(undef, "Error looking up file");
2472        }
2473        $ftype = git_get_type($hash);
2474        if ($ftype !~ "blob") {
2475                die_error("400 Bad Request", "Object is not a blob");
2476        }
2477        open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2478                or die_error(undef, "Open git-blame failed");
2479        git_header_html();
2480        my $formats_nav =
2481                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2482                        "blob") .
2483                " | " .
2484                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2485                        "history") .
2486                " | " .
2487                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2488                        "HEAD");
2489        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2490        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2491        git_print_page_path($file_name, $ftype, $hash_base);
2492        my @rev_color = (qw(light2 dark2));
2493        my $num_colors = scalar(@rev_color);
2494        my $current_color = 0;
2495        my $last_rev;
2496        print <<HTML;
2497<div class="page_body">
2498<table class="blame">
2499<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2500HTML
2501        while (<$fd>) {
2502                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2503                my $full_rev = $1;
2504                my $rev = substr($full_rev, 0, 8);
2505                my $lineno = $2;
2506                my $data = $3;
2507
2508                if (!defined $last_rev) {
2509                        $last_rev = $full_rev;
2510                } elsif ($last_rev ne $full_rev) {
2511                        $last_rev = $full_rev;
2512                        $current_color = ++$current_color % $num_colors;
2513                }
2514                print "<tr class=\"$rev_color[$current_color]\">\n";
2515                print "<td class=\"sha1\">" .
2516                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2517                                esc_html($rev)) . "</td>\n";
2518                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2519                      esc_html($lineno) . "</a></td>\n";
2520                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2521                print "</tr>\n";
2522        }
2523        print "</table>\n";
2524        print "</div>";
2525        close $fd
2526                or print "Reading blob failed\n";
2527        git_footer_html();
2528}
2529
2530sub git_blame {
2531        my $fd;
2532
2533        my ($have_blame) = gitweb_check_feature('blame');
2534        if (!$have_blame) {
2535                die_error('403 Permission denied', "Permission denied");
2536        }
2537        die_error('404 Not Found', "File name not defined") if (!$file_name);
2538        $hash_base ||= git_get_head_hash($project);
2539        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2540        my %co = parse_commit($hash_base)
2541                or die_error(undef, "Reading commit failed");
2542        if (!defined $hash) {
2543                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2544                        or die_error(undef, "Error lookup file");
2545        }
2546        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2547                or die_error(undef, "Open git-annotate failed");
2548        git_header_html();
2549        my $formats_nav =
2550                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2551                        "blob") .
2552                " | " .
2553                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2554                        "history") .
2555                " | " .
2556                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2557                        "HEAD");
2558        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2559        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2560        git_print_page_path($file_name, 'blob', $hash_base);
2561        print "<div class=\"page_body\">\n";
2562        print <<HTML;
2563<table class="blame">
2564  <tr>
2565    <th>Commit</th>
2566    <th>Age</th>
2567    <th>Author</th>
2568    <th>Line</th>
2569    <th>Data</th>
2570  </tr>
2571HTML
2572        my @line_class = (qw(light dark));
2573        my $line_class_len = scalar (@line_class);
2574        my $line_class_num = $#line_class;
2575        while (my $line = <$fd>) {
2576                my $long_rev;
2577                my $short_rev;
2578                my $author;
2579                my $time;
2580                my $lineno;
2581                my $data;
2582                my $age;
2583                my $age_str;
2584                my $age_class;
2585
2586                chomp $line;
2587                $line_class_num = ($line_class_num + 1) % $line_class_len;
2588
2589                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2590                        $long_rev = $1;
2591                        $author   = $2;
2592                        $time     = $3;
2593                        $lineno   = $4;
2594                        $data     = $5;
2595                } else {
2596                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2597                        next;
2598                }
2599                $short_rev  = substr ($long_rev, 0, 8);
2600                $age        = time () - $time;
2601                $age_str    = age_string ($age);
2602                $age_str    =~ s/ /&nbsp;/g;
2603                $age_class  = age_class($age);
2604                $author     = esc_html ($author);
2605                $author     =~ s/ /&nbsp;/g;
2606
2607                $data = untabify($data);
2608                $data = esc_html ($data);
2609
2610                print <<HTML;
2611  <tr class="$line_class[$line_class_num]">
2612    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2613    <td class="$age_class">$age_str</td>
2614    <td>$author</td>
2615    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2616    <td class="pre">$data</td>
2617  </tr>
2618HTML
2619        } # while (my $line = <$fd>)
2620        print "</table>\n\n";
2621        close $fd
2622                or print "Reading blob failed.\n";
2623        print "</div>";
2624        git_footer_html();
2625}
2626
2627sub git_tags {
2628        my $head = git_get_head_hash($project);
2629        git_header_html();
2630        git_print_page_nav('','', $head,undef,$head);
2631        git_print_header_div('summary', $project);
2632
2633        my ($taglist) = git_get_refs_list("tags");
2634        if (@$taglist) {
2635                git_tags_body($taglist);
2636        }
2637        git_footer_html();
2638}
2639
2640sub git_heads {
2641        my $head = git_get_head_hash($project);
2642        git_header_html();
2643        git_print_page_nav('','', $head,undef,$head);
2644        git_print_header_div('summary', $project);
2645
2646        my ($headlist) = git_get_refs_list("heads");
2647        if (@$headlist) {
2648                git_heads_body($headlist, $head);
2649        }
2650        git_footer_html();
2651}
2652
2653sub git_blob_plain {
2654        my $expires;
2655
2656        if (!defined $hash) {
2657                if (defined $file_name) {
2658                        my $base = $hash_base || git_get_head_hash($project);
2659                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2660                                or die_error(undef, "Error lookup file");
2661                } else {
2662                        die_error(undef, "No file name defined");
2663                }
2664        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2665                # blobs defined by non-textual hash id's can be cached
2666                $expires = "+1d";
2667        }
2668
2669        my $type = shift;
2670        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2671                or die_error(undef, "Couldn't cat $file_name, $hash");
2672
2673        $type ||= blob_mimetype($fd, $file_name);
2674
2675        # save as filename, even when no $file_name is given
2676        my $save_as = "$hash";
2677        if (defined $file_name) {
2678                $save_as = $file_name;
2679        } elsif ($type =~ m/^text\//) {
2680                $save_as .= '.txt';
2681        }
2682
2683        print $cgi->header(
2684                -type => "$type",
2685                -expires=>$expires,
2686                -content_disposition => 'inline; filename="' . "$save_as" . '"');
2687        undef $/;
2688        binmode STDOUT, ':raw';
2689        print <$fd>;
2690        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2691        $/ = "\n";
2692        close $fd;
2693}
2694
2695sub git_blob {
2696        my $expires;
2697
2698        if (!defined $hash) {
2699                if (defined $file_name) {
2700                        my $base = $hash_base || git_get_head_hash($project);
2701                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2702                                or die_error(undef, "Error lookup file");
2703                } else {
2704                        die_error(undef, "No file name defined");
2705                }
2706        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2707                # blobs defined by non-textual hash id's can be cached
2708                $expires = "+1d";
2709        }
2710
2711        my ($have_blame) = gitweb_check_feature('blame');
2712        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2713                or die_error(undef, "Couldn't cat $file_name, $hash");
2714        my $mimetype = blob_mimetype($fd, $file_name);
2715        if ($mimetype !~ m/^text\//) {
2716                close $fd;
2717                return git_blob_plain($mimetype);
2718        }
2719        git_header_html(undef, $expires);
2720        my $formats_nav = '';
2721        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2722                if (defined $file_name) {
2723                        if ($have_blame) {
2724                                $formats_nav .=
2725                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2726                                                               hash=>$hash, file_name=>$file_name)},
2727                                                "blame") .
2728                                        " | ";
2729                        }
2730                        $formats_nav .=
2731                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2732                                                       hash=>$hash, file_name=>$file_name)},
2733                                        "history") .
2734                                " | " .
2735                                $cgi->a({-href => href(action=>"blob_plain",
2736                                                       hash=>$hash, file_name=>$file_name)},
2737                                        "raw") .
2738                                " | " .
2739                                $cgi->a({-href => href(action=>"blob",
2740                                                       hash_base=>"HEAD", file_name=>$file_name)},
2741                                        "HEAD");
2742                } else {
2743                        $formats_nav .=
2744                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2745                }
2746                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2747                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2748        } else {
2749                print "<div class=\"page_nav\">\n" .
2750                      "<br/><br/></div>\n" .
2751                      "<div class=\"title\">$hash</div>\n";
2752        }
2753        git_print_page_path($file_name, "blob", $hash_base);
2754        print "<div class=\"page_body\">\n";
2755        my $nr;
2756        while (my $line = <$fd>) {
2757                chomp $line;
2758                $nr++;
2759                $line = untabify($line);
2760                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2761                       $nr, $nr, $nr, esc_html($line);
2762        }
2763        close $fd
2764                or print "Reading blob failed.\n";
2765        print "</div>";
2766        git_footer_html();
2767}
2768
2769sub git_tree {
2770        my $have_snapshot = gitweb_have_snapshot();
2771
2772        if (!defined $hash_base) {
2773                $hash_base = "HEAD";
2774        }
2775        if (!defined $hash) {
2776                if (defined $file_name) {
2777                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2778                } else {
2779                        $hash = $hash_base;
2780                }
2781        }
2782        $/ = "\0";
2783        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2784                or die_error(undef, "Open git-ls-tree failed");
2785        my @entries = map { chomp; $_ } <$fd>;
2786        close $fd or die_error(undef, "Reading tree failed");
2787        $/ = "\n";
2788
2789        my $refs = git_get_references();
2790        my $ref = format_ref_marker($refs, $hash_base);
2791        git_header_html();
2792        my $base = "";
2793        my ($have_blame) = gitweb_check_feature('blame');
2794        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2795                my @views_nav = ();
2796                if (defined $file_name) {
2797                        push @views_nav,
2798                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2799                                                       hash=>$hash, file_name=>$file_name)},
2800                                        "history"),
2801                                $cgi->a({-href => href(action=>"tree",
2802                                                       hash_base=>"HEAD", file_name=>$file_name)},
2803                                        "HEAD"),
2804                }
2805                if ($have_snapshot) {
2806                        # FIXME: Should be available when we have no hash base as well.
2807                        push @views_nav,
2808                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2809                                        "snapshot");
2810                }
2811                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2812                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2813        } else {
2814                undef $hash_base;
2815                print "<div class=\"page_nav\">\n";
2816                print "<br/><br/></div>\n";
2817                print "<div class=\"title\">$hash</div>\n";
2818        }
2819        if (defined $file_name) {
2820                $base = esc_html("$file_name/");
2821        }
2822        git_print_page_path($file_name, 'tree', $hash_base);
2823        print "<div class=\"page_body\">\n";
2824        print "<table cellspacing=\"0\">\n";
2825        my $alternate = 1;
2826        foreach my $line (@entries) {
2827                my %t = parse_ls_tree_line($line, -z => 1);
2828
2829                if ($alternate) {
2830                        print "<tr class=\"dark\">\n";
2831                } else {
2832                        print "<tr class=\"light\">\n";
2833                }
2834                $alternate ^= 1;
2835
2836                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2837
2838                print "</tr>\n";
2839        }
2840        print "</table>\n" .
2841              "</div>";
2842        git_footer_html();
2843}
2844
2845sub git_snapshot {
2846        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2847        my $have_snapshot = (defined $ctype && defined $suffix);
2848        if (!$have_snapshot) {
2849                die_error('403 Permission denied', "Permission denied");
2850        }
2851
2852        if (!defined $hash) {
2853                $hash = git_get_head_hash($project);
2854        }
2855
2856        my $filename = basename($project) . "-$hash.tar.$suffix";
2857
2858        print $cgi->header(
2859                -type => 'application/x-tar',
2860                -content_encoding => $ctype,
2861                -content_disposition => 'inline; filename="' . "$filename" . '"',
2862                -status => '200 OK');
2863
2864        my $git_command = git_cmd_str();
2865        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2866                die_error(undef, "Execute git-tar-tree failed.");
2867        binmode STDOUT, ':raw';
2868        print <$fd>;
2869        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2870        close $fd;
2871
2872}
2873
2874sub git_log {
2875        my $head = git_get_head_hash($project);
2876        if (!defined $hash) {
2877                $hash = $head;
2878        }
2879        if (!defined $page) {
2880                $page = 0;
2881        }
2882        my $refs = git_get_references();
2883
2884        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2885        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2886                or die_error(undef, "Open git-rev-list failed");
2887        my @revlist = map { chomp; $_ } <$fd>;
2888        close $fd;
2889
2890        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2891
2892        git_header_html();
2893        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2894
2895        if (!@revlist) {
2896                my %co = parse_commit($hash);
2897
2898                git_print_header_div('summary', $project);
2899                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2900        }
2901        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2902                my $commit = $revlist[$i];
2903                my $ref = format_ref_marker($refs, $commit);
2904                my %co = parse_commit($commit);
2905                next if !%co;
2906                my %ad = parse_date($co{'author_epoch'});
2907                git_print_header_div('commit',
2908                               "<span class=\"age\">$co{'age_string'}</span>" .
2909                               esc_html($co{'title'}) . $ref,
2910                               $commit);
2911                print "<div class=\"title_text\">\n" .
2912                      "<div class=\"log_link\">\n" .
2913                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2914                      " | " .
2915                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2916                      " | " .
2917                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2918                      "<br/>\n" .
2919                      "</div>\n" .
2920                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2921                      "</div>\n";
2922
2923                print "<div class=\"log_body\">\n";
2924                git_print_simplified_log($co{'comment'});
2925                print "</div>\n";
2926        }
2927        git_footer_html();
2928}
2929
2930sub git_commit {
2931        my %co = parse_commit($hash);
2932        if (!%co) {
2933                die_error(undef, "Unknown commit object");
2934        }
2935        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2936        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2937
2938        my $parent = $co{'parent'};
2939        if (!defined $parent) {
2940                $parent = "--root";
2941        }
2942        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2943                or die_error(undef, "Open git-diff-tree failed");
2944        my @difftree = map { chomp; $_ } <$fd>;
2945        close $fd or die_error(undef, "Reading git-diff-tree failed");
2946
2947        # non-textual hash id's can be cached
2948        my $expires;
2949        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2950                $expires = "+1d";
2951        }
2952        my $refs = git_get_references();
2953        my $ref = format_ref_marker($refs, $co{'id'});
2954
2955        my $have_snapshot = gitweb_have_snapshot();
2956
2957        my @views_nav = ();
2958        if (defined $file_name && defined $co{'parent'}) {
2959                push @views_nav,
2960                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2961                                "blame");
2962        }
2963        if (defined $co{'parent'}) {
2964                push @views_nav,
2965                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
2966                        $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
2967        }
2968        git_header_html(undef, $expires);
2969        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2970                           $hash, $co{'tree'}, $hash,
2971                           join (' | ', @views_nav));
2972
2973        if (defined $co{'parent'}) {
2974                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2975        } else {
2976                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2977        }
2978        print "<div class=\"title_text\">\n" .
2979              "<table cellspacing=\"0\">\n";
2980        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2981              "<tr>" .
2982              "<td></td><td> $ad{'rfc2822'}";
2983        if ($ad{'hour_local'} < 6) {
2984                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2985                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2986        } else {
2987                printf(" (%02d:%02d %s)",
2988                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2989        }
2990        print "</td>" .
2991              "</tr>\n";
2992        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2993        print "<tr><td></td><td> $cd{'rfc2822'}" .
2994              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2995              "</td></tr>\n";
2996        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2997        print "<tr>" .
2998              "<td>tree</td>" .
2999              "<td class=\"sha1\">" .
3000              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3001                       class => "list"}, $co{'tree'}) .
3002              "</td>" .
3003              "<td class=\"link\">" .
3004              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3005                      "tree");
3006        if ($have_snapshot) {
3007                print " | " .
3008                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3009        }
3010        print "</td>" .
3011              "</tr>\n";
3012        my $parents = $co{'parents'};
3013        foreach my $par (@$parents) {
3014                print "<tr>" .
3015                      "<td>parent</td>" .
3016                      "<td class=\"sha1\">" .
3017                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3018                               class => "list"}, $par) .
3019                      "</td>" .
3020                      "<td class=\"link\">" .
3021                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3022                      " | " .
3023                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3024                      "</td>" .
3025                      "</tr>\n";
3026        }
3027        print "</table>".
3028              "</div>\n";
3029
3030        print "<div class=\"page_body\">\n";
3031        git_print_log($co{'comment'});
3032        print "</div>\n";
3033
3034        git_difftree_body(\@difftree, $hash, $parent);
3035
3036        git_footer_html();
3037}
3038
3039sub git_blobdiff {
3040        my $format = shift || 'html';
3041
3042        my $fd;
3043        my @difftree;
3044        my %diffinfo;
3045        my $expires;
3046
3047        # preparing $fd and %diffinfo for git_patchset_body
3048        # new style URI
3049        if (defined $hash_base && defined $hash_parent_base) {
3050                if (defined $file_name) {
3051                        # read raw output
3052                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3053                                "--", $file_name
3054                                or die_error(undef, "Open git-diff-tree failed");
3055                        @difftree = map { chomp; $_ } <$fd>;
3056                        close $fd
3057                                or die_error(undef, "Reading git-diff-tree failed");
3058                        @difftree
3059                                or die_error('404 Not Found', "Blob diff not found");
3060
3061                } elsif (defined $hash &&
3062                         $hash =~ /[0-9a-fA-F]{40}/) {
3063                        # try to find filename from $hash
3064
3065                        # read filtered raw output
3066                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3067                                or die_error(undef, "Open git-diff-tree failed");
3068                        @difftree =
3069                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3070                                # $hash == to_id
3071                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3072                                map { chomp; $_ } <$fd>;
3073                        close $fd
3074                                or die_error(undef, "Reading git-diff-tree failed");
3075                        @difftree
3076                                or die_error('404 Not Found', "Blob diff not found");
3077
3078                } else {
3079                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3080                }
3081
3082                if (@difftree > 1) {
3083                        die_error('404 Not Found', "Ambiguous blob diff specification");
3084                }
3085
3086                %diffinfo = parse_difftree_raw_line($difftree[0]);
3087                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3088                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3089
3090                $hash_parent ||= $diffinfo{'from_id'};
3091                $hash        ||= $diffinfo{'to_id'};
3092
3093                # non-textual hash id's can be cached
3094                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3095                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3096                        $expires = '+1d';
3097                }
3098
3099                # open patch output
3100                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3101                        '-p', $hash_parent_base, $hash_base,
3102                        "--", $file_name
3103                        or die_error(undef, "Open git-diff-tree failed");
3104        }
3105
3106        # old/legacy style URI
3107        if (!%diffinfo && # if new style URI failed
3108            defined $hash && defined $hash_parent) {
3109                # fake git-diff-tree raw output
3110                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3111                $diffinfo{'from_id'} = $hash_parent;
3112                $diffinfo{'to_id'}   = $hash;
3113                if (defined $file_name) {
3114                        if (defined $file_parent) {
3115                                $diffinfo{'status'} = '2';
3116                                $diffinfo{'from_file'} = $file_parent;
3117                                $diffinfo{'to_file'}   = $file_name;
3118                        } else { # assume not renamed
3119                                $diffinfo{'status'} = '1';
3120                                $diffinfo{'from_file'} = $file_name;
3121                                $diffinfo{'to_file'}   = $file_name;
3122                        }
3123                } else { # no filename given
3124                        $diffinfo{'status'} = '2';
3125                        $diffinfo{'from_file'} = $hash_parent;
3126                        $diffinfo{'to_file'}   = $hash;
3127                }
3128
3129                # non-textual hash id's can be cached
3130                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3131                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3132                        $expires = '+1d';
3133                }
3134
3135                # open patch output
3136                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3137                        or die_error(undef, "Open git-diff failed");
3138        } else  {
3139                die_error('404 Not Found', "Missing one of the blob diff parameters")
3140                        unless %diffinfo;
3141        }
3142
3143        # header
3144        if ($format eq 'html') {
3145                my $formats_nav =
3146                        $cgi->a({-href => href(action=>"blobdiff_plain",
3147                                               hash=>$hash, hash_parent=>$hash_parent,
3148                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3149                                               file_name=>$file_name, file_parent=>$file_parent)},
3150                                "raw");
3151                git_header_html(undef, $expires);
3152                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3153                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3154                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3155                } else {
3156                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3157                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3158                }
3159                if (defined $file_name) {
3160                        git_print_page_path($file_name, "blob", $hash_base);
3161                } else {
3162                        print "<div class=\"page_path\"></div>\n";
3163                }
3164
3165        } elsif ($format eq 'plain') {
3166                print $cgi->header(
3167                        -type => 'text/plain',
3168                        -charset => 'utf-8',
3169                        -expires => $expires,
3170                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3171
3172                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3173
3174        } else {
3175                die_error(undef, "Unknown blobdiff format");
3176        }
3177
3178        # patch
3179        if ($format eq 'html') {
3180                print "<div class=\"page_body\">\n";
3181
3182                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3183                close $fd;
3184
3185                print "</div>\n"; # class="page_body"
3186                git_footer_html();
3187
3188        } else {
3189                while (my $line = <$fd>) {
3190                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3191                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3192
3193                        print $line;
3194
3195                        last if $line =~ m!^\+\+\+!;
3196                }
3197                local $/ = undef;
3198                print <$fd>;
3199                close $fd;
3200        }
3201}
3202
3203sub git_blobdiff_plain {
3204        git_blobdiff('plain');
3205}
3206
3207sub git_commitdiff {
3208        my $format = shift || 'html';
3209        my %co = parse_commit($hash);
3210        if (!%co) {
3211                die_error(undef, "Unknown commit object");
3212        }
3213        if (!defined $hash_parent) {
3214                $hash_parent = $co{'parent'} || '--root';
3215        }
3216
3217        # read commitdiff
3218        my $fd;
3219        my @difftree;
3220        if ($format eq 'html') {
3221                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3222                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3223                        or die_error(undef, "Open git-diff-tree failed");
3224
3225                while (chomp(my $line = <$fd>)) {
3226                        # empty line ends raw part of diff-tree output
3227                        last unless $line;
3228                        push @difftree, $line;
3229                }
3230
3231        } elsif ($format eq 'plain') {
3232                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3233                        '-p', $hash_parent, $hash
3234                        or die_error(undef, "Open git-diff-tree failed");
3235
3236        } else {
3237                die_error(undef, "Unknown commitdiff format");
3238        }
3239
3240        # non-textual hash id's can be cached
3241        my $expires;
3242        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3243                $expires = "+1d";
3244        }
3245
3246        # write commit message
3247        if ($format eq 'html') {
3248                my $refs = git_get_references();
3249                my $ref = format_ref_marker($refs, $co{'id'});
3250                my $formats_nav =
3251                        $cgi->a({-href => href(action=>"commitdiff_plain",
3252                                               hash=>$hash, hash_parent=>$hash_parent)},
3253                                "raw");
3254
3255                git_header_html(undef, $expires);
3256                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3257                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3258                git_print_authorship(\%co);
3259                print "<div class=\"page_body\">\n";
3260                print "<div class=\"log\">\n";
3261                git_print_simplified_log($co{'comment'}, 1); # skip title
3262                print "</div>\n"; # class="log"
3263
3264        } elsif ($format eq 'plain') {
3265                my $refs = git_get_references("tags");
3266                my $tagname = git_get_rev_name_tags($hash);
3267                my $filename = basename($project) . "-$hash.patch";
3268
3269                print $cgi->header(
3270                        -type => 'text/plain',
3271                        -charset => 'utf-8',
3272                        -expires => $expires,
3273                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3274                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3275                print <<TEXT;
3276From: $co{'author'}
3277Date: $ad{'rfc2822'} ($ad{'tz_local'})
3278Subject: $co{'title'}
3279TEXT
3280                print "X-Git-Tag: $tagname\n" if $tagname;
3281                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3282
3283                foreach my $line (@{$co{'comment'}}) {
3284                        print "$line\n";
3285                }
3286                print "---\n\n";
3287        }
3288
3289        # write patch
3290        if ($format eq 'html') {
3291                git_difftree_body(\@difftree, $hash, $hash_parent);
3292                print "<br/>\n";
3293
3294                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3295                close $fd;
3296                print "</div>\n"; # class="page_body"
3297                git_footer_html();
3298
3299        } elsif ($format eq 'plain') {
3300                local $/ = undef;
3301                print <$fd>;
3302                close $fd
3303                        or print "Reading git-diff-tree failed\n";
3304        }
3305}
3306
3307sub git_commitdiff_plain {
3308        git_commitdiff('plain');
3309}
3310
3311sub git_history {
3312        if (!defined $hash_base) {
3313                $hash_base = git_get_head_hash($project);
3314        }
3315        if (!defined $page) {
3316                $page = 0;
3317        }
3318        my $ftype;
3319        my %co = parse_commit($hash_base);
3320        if (!%co) {
3321                die_error(undef, "Unknown commit object");
3322        }
3323
3324        my $refs = git_get_references();
3325        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3326
3327        if (!defined $hash && defined $file_name) {
3328                $hash = git_get_hash_by_path($hash_base, $file_name);
3329        }
3330        if (defined $hash) {
3331                $ftype = git_get_type($hash);
3332        }
3333
3334        open my $fd, "-|",
3335                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3336                        or die_error(undef, "Open git-rev-list-failed");
3337        my @revlist = map { chomp; $_ } <$fd>;
3338        close $fd
3339                or die_error(undef, "Reading git-rev-list failed");
3340
3341        my $paging_nav = '';
3342        if ($page > 0) {
3343                $paging_nav .=
3344                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3345                                               file_name=>$file_name)},
3346                                "first");
3347                $paging_nav .= " &sdot; " .
3348                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3349                                               file_name=>$file_name, page=>$page-1),
3350                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3351        } else {
3352                $paging_nav .= "first";
3353                $paging_nav .= " &sdot; prev";
3354        }
3355        if ($#revlist >= (100 * ($page+1)-1)) {
3356                $paging_nav .= " &sdot; " .
3357                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3358                                               file_name=>$file_name, page=>$page+1),
3359                                 -accesskey => "n", -title => "Alt-n"}, "next");
3360        } else {
3361                $paging_nav .= " &sdot; next";
3362        }
3363        my $next_link = '';
3364        if ($#revlist >= (100 * ($page+1)-1)) {
3365                $next_link =
3366                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3367                                               file_name=>$file_name, page=>$page+1),
3368                                 -title => "Alt-n"}, "next");
3369        }
3370
3371        git_header_html();
3372        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3373        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3374        git_print_page_path($file_name, $ftype, $hash_base);
3375
3376        git_history_body(\@revlist, ($page * 100), $#revlist,
3377                         $refs, $hash_base, $ftype, $next_link);
3378
3379        git_footer_html();
3380}
3381
3382sub git_search {
3383        if (!defined $searchtext) {
3384                die_error(undef, "Text field empty");
3385        }
3386        if (!defined $hash) {
3387                $hash = git_get_head_hash($project);
3388        }
3389        my %co = parse_commit($hash);
3390        if (!%co) {
3391                die_error(undef, "Unknown commit object");
3392        }
3393
3394        my $commit_search = 1;
3395        my $author_search = 0;
3396        my $committer_search = 0;
3397        my $pickaxe_search = 0;
3398        if ($searchtext =~ s/^author\\://i) {
3399                $author_search = 1;
3400        } elsif ($searchtext =~ s/^committer\\://i) {
3401                $committer_search = 1;
3402        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3403                $commit_search = 0;
3404                $pickaxe_search = 1;
3405
3406                # pickaxe may take all resources of your box and run for several minutes
3407                # with every query - so decide by yourself how public you make this feature
3408                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3409                if (!$have_pickaxe) {
3410                        die_error('403 Permission denied', "Permission denied");
3411                }
3412        }
3413        git_header_html();
3414        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3415        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3416
3417        print "<table cellspacing=\"0\">\n";
3418        my $alternate = 1;
3419        if ($commit_search) {
3420                $/ = "\0";
3421                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3422                while (my $commit_text = <$fd>) {
3423                        if (!grep m/$searchtext/i, $commit_text) {
3424                                next;
3425                        }
3426                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3427                                next;
3428                        }
3429                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3430                                next;
3431                        }
3432                        my @commit_lines = split "\n", $commit_text;
3433                        my %co = parse_commit(undef, \@commit_lines);
3434                        if (!%co) {
3435                                next;
3436                        }
3437                        if ($alternate) {
3438                                print "<tr class=\"dark\">\n";
3439                        } else {
3440                                print "<tr class=\"light\">\n";
3441                        }
3442                        $alternate ^= 1;
3443                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3444                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3445                              "<td>" .
3446                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3447                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3448                        my $comment = $co{'comment'};
3449                        foreach my $line (@$comment) {
3450                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3451                                        my $lead = esc_html($1) || "";
3452                                        $lead = chop_str($lead, 30, 10);
3453                                        my $match = esc_html($2) || "";
3454                                        my $trail = esc_html($3) || "";
3455                                        $trail = chop_str($trail, 30, 10);
3456                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3457                                        print chop_str($text, 80, 5) . "<br/>\n";
3458                                }
3459                        }
3460                        print "</td>\n" .
3461                              "<td class=\"link\">" .
3462                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3463                              " | " .
3464                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3465                        print "</td>\n" .
3466                              "</tr>\n";
3467                }
3468                close $fd;
3469        }
3470
3471        if ($pickaxe_search) {
3472                $/ = "\n";
3473                my $git_command = git_cmd_str();
3474                open my $fd, "-|", "$git_command rev-list $hash | " .
3475                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3476                undef %co;
3477                my @files;
3478                while (my $line = <$fd>) {
3479                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3480                                my %set;
3481                                $set{'file'} = $6;
3482                                $set{'from_id'} = $3;
3483                                $set{'to_id'} = $4;
3484                                $set{'id'} = $set{'to_id'};
3485                                if ($set{'id'} =~ m/0{40}/) {
3486                                        $set{'id'} = $set{'from_id'};
3487                                }
3488                                if ($set{'id'} =~ m/0{40}/) {
3489                                        next;
3490                                }
3491                                push @files, \%set;
3492                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3493                                if (%co) {
3494                                        if ($alternate) {
3495                                                print "<tr class=\"dark\">\n";
3496                                        } else {
3497                                                print "<tr class=\"light\">\n";
3498                                        }
3499                                        $alternate ^= 1;
3500                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3501                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3502                                              "<td>" .
3503                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3504                                                      -class => "list subject"},
3505                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3506                                        while (my $setref = shift @files) {
3507                                                my %set = %$setref;
3508                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3509                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3510                                                              -class => "list"},
3511                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3512                                                      "<br/>\n";
3513                                        }
3514                                        print "</td>\n" .
3515                                              "<td class=\"link\">" .
3516                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3517                                              " | " .
3518                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3519                                        print "</td>\n" .
3520                                              "</tr>\n";
3521                                }
3522                                %co = parse_commit($1);
3523                        }
3524                }
3525                close $fd;
3526        }
3527        print "</table>\n";
3528        git_footer_html();
3529}
3530
3531sub git_shortlog {
3532        my $head = git_get_head_hash($project);
3533        if (!defined $hash) {
3534                $hash = $head;
3535        }
3536        if (!defined $page) {
3537                $page = 0;
3538        }
3539        my $refs = git_get_references();
3540
3541        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3542        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3543                or die_error(undef, "Open git-rev-list failed");
3544        my @revlist = map { chomp; $_ } <$fd>;
3545        close $fd;
3546
3547        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3548        my $next_link = '';
3549        if ($#revlist >= (100 * ($page+1)-1)) {
3550                $next_link =
3551                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3552                                 -title => "Alt-n"}, "next");
3553        }
3554
3555
3556        git_header_html();
3557        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3558        git_print_header_div('summary', $project);
3559
3560        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3561
3562        git_footer_html();
3563}
3564
3565## ......................................................................
3566## feeds (RSS, OPML)
3567
3568sub git_rss {
3569        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3570        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3571                or die_error(undef, "Open git-rev-list failed");
3572        my @revlist = map { chomp; $_ } <$fd>;
3573        close $fd or die_error(undef, "Reading git-rev-list failed");
3574        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3575        print <<XML;
3576<?xml version="1.0" encoding="utf-8"?>
3577<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3578<channel>
3579<title>$project $my_uri $my_url</title>
3580<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3581<description>$project log</description>
3582<language>en</language>
3583XML
3584
3585        for (my $i = 0; $i <= $#revlist; $i++) {
3586                my $commit = $revlist[$i];
3587                my %co = parse_commit($commit);
3588                # we read 150, we always show 30 and the ones more recent than 48 hours
3589                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3590                        last;
3591                }
3592                my %cd = parse_date($co{'committer_epoch'});
3593                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3594                        $co{'parent'}, $co{'id'}
3595                        or next;
3596                my @difftree = map { chomp; $_ } <$fd>;
3597                close $fd
3598                        or next;
3599                print "<item>\n" .
3600                      "<title>" .
3601                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3602                      "</title>\n" .
3603                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3604                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3605                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3606                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3607                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3608                      "<content:encoded>" .
3609                      "<![CDATA[\n";
3610                my $comment = $co{'comment'};
3611                foreach my $line (@$comment) {
3612                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3613                        print "$line<br/>\n";
3614                }
3615                print "<br/>\n";
3616                foreach my $line (@difftree) {
3617                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3618                                next;
3619                        }
3620                        my $file = esc_html(unquote($7));
3621                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3622                        print "$file<br/>\n";
3623                }
3624                print "]]>\n" .
3625                      "</content:encoded>\n" .
3626                      "</item>\n";
3627        }
3628        print "</channel></rss>";
3629}
3630
3631sub git_opml {
3632        my @list = git_get_projects_list();
3633
3634        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3635        print <<XML;
3636<?xml version="1.0" encoding="utf-8"?>
3637<opml version="1.0">
3638<head>
3639  <title>$site_name Git OPML Export</title>
3640</head>
3641<body>
3642<outline text="git RSS feeds">
3643XML
3644
3645        foreach my $pr (@list) {
3646                my %proj = %$pr;
3647                my $head = git_get_head_hash($proj{'path'});
3648                if (!defined $head) {
3649                        next;
3650                }
3651                $git_dir = "$projectroot/$proj{'path'}";
3652                my %co = parse_commit($head);
3653                if (!%co) {
3654                        next;
3655                }
3656
3657                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3658                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3659                my $html = "$my_url?p=$proj{'path'};a=summary";
3660                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3661        }
3662        print <<XML;
3663</outline>
3664</body>
3665</opml>
3666XML
3667}