gitweb / gitweb.perlon commit gitweb: Link (HEAD) tree for each project from projects list (609ff26)
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44# html text to include at home page
  45our $home_text = "++GITWEB_HOMETEXT++";
  46
  47# URI of default stylesheet
  48our $stylesheet = "++GITWEB_CSS++";
  49# URI of GIT logo
  50our $logo = "++GITWEB_LOGO++";
  51# URI of GIT favicon, assumed to be image/png type
  52our $favicon = "++GITWEB_FAVICON++";
  53
  54# source of projects list
  55our $projects_list = "++GITWEB_LIST++";
  56
  57# show repository only if this file exists
  58# (only effective if this variable evaluates to true)
  59our $export_ok = "++GITWEB_EXPORT_OK++";
  60
  61# only allow viewing of repositories also shown on the overview page
  62our $strict_export = "++GITWEB_STRICT_EXPORT++";
  63
  64# list of git base URLs used for URL to where fetch project from,
  65# i.e. full URL is "$git_base_url/$project"
  66our @git_base_url_list = ("++GITWEB_BASE_URL++");
  67
  68# default blob_plain mimetype and default charset for text/plain blob
  69our $default_blob_plain_mimetype = 'text/plain';
  70our $default_text_plain_charset  = undef;
  71
  72# file to use for guessing MIME types before trying /etc/mime.types
  73# (relative to the current git repository)
  74our $mimetypes_file = undef;
  75
  76# You define site-wide feature defaults here; override them with
  77# $GITWEB_CONFIG as necessary.
  78our %feature = (
  79        # feature => {
  80        #       'sub' => feature-sub (subroutine),
  81        #       'override' => allow-override (boolean),
  82        #       'default' => [ default options...] (array reference)}
  83        #
  84        # if feature is overridable (it means that allow-override has true value,
  85        # then feature-sub will be called with default options as parameters;
  86        # return value of feature-sub indicates if to enable specified feature
  87        #
  88        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90        'blame' => {
  91                'sub' => \&feature_blame,
  92                'override' => 0,
  93                'default' => [0]},
  94
  95        'snapshot' => {
  96                'sub' => \&feature_snapshot,
  97                'override' => 0,
  98                #         => [content-encoding, suffix, program]
  99                'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101        'pickaxe' => {
 102                'sub' => \&feature_pickaxe,
 103                'override' => 0,
 104                'default' => [1]},
 105);
 106
 107sub gitweb_check_feature {
 108        my ($name) = @_;
 109        return undef unless exists $feature{$name};
 110        my ($sub, $override, @defaults) = (
 111                $feature{$name}{'sub'},
 112                $feature{$name}{'override'},
 113                @{$feature{$name}{'default'}});
 114        if (!$override) { return @defaults; }
 115        return $sub->(@defaults);
 116}
 117
 118# To enable system wide have in $GITWEB_CONFIG
 119# $feature{'blame'}{'default'} = [1];
 120# To have project specific config enable override in $GITWEB_CONFIG
 121# $feature{'blame'}{'override'} = 1;
 122# and in project config gitweb.blame = 0|1;
 123
 124sub feature_blame {
 125        my ($val) = git_get_project_config('blame', '--bool');
 126
 127        if ($val eq 'true') {
 128                return 1;
 129        } elsif ($val eq 'false') {
 130                return 0;
 131        }
 132
 133        return $_[0];
 134}
 135
 136# To disable system wide have in $GITWEB_CONFIG
 137# $feature{'snapshot'}{'default'} = [undef];
 138# To have project specific config enable override in $GITWEB_CONFIG
 139# $feature{'blame'}{'override'} = 1;
 140# and in project config  gitweb.snapshot = none|gzip|bzip2
 141
 142sub feature_snapshot {
 143        my ($ctype, $suffix, $command) = @_;
 144
 145        my ($val) = git_get_project_config('snapshot');
 146
 147        if ($val eq 'gzip') {
 148                return ('x-gzip', 'gz', 'gzip');
 149        } elsif ($val eq 'bzip2') {
 150                return ('x-bzip2', 'bz2', 'bzip2');
 151        } elsif ($val eq 'none') {
 152                return ();
 153        }
 154
 155        return ($ctype, $suffix, $command);
 156}
 157
 158# To enable system wide have in $GITWEB_CONFIG
 159# $feature{'pickaxe'}{'default'} = [1];
 160# To have project specific config enable override in $GITWEB_CONFIG
 161# $feature{'pickaxe'}{'override'} = 1;
 162# and in project config gitweb.pickaxe = 0|1;
 163
 164sub feature_pickaxe {
 165        my ($val) = git_get_project_config('pickaxe', '--bool');
 166
 167        if ($val eq 'true') {
 168                return (1);
 169        } elsif ($val eq 'false') {
 170                return (0);
 171        }
 172
 173        return ($_[0]);
 174}
 175
 176# rename detection options for git-diff and git-diff-tree
 177# - default is '-M', with the cost proportional to
 178#   (number of removed files) * (number of new files).
 179# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 180#   (number of changed files + number of removed files) * (number of new files)
 181# - even more costly is '-C', '--find-copies-harder' with cost
 182#   (number of files in the original tree) * (number of new files)
 183# - one might want to include '-B' option, e.g. '-B', '-M'
 184our @diff_opts = ('-M'); # taken from git_commit
 185
 186our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 187do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 188
 189# version of the core git binary
 190our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 191
 192$projects_list ||= $projectroot;
 193
 194# ======================================================================
 195# input validation and dispatch
 196our $action = $cgi->param('a');
 197if (defined $action) {
 198        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 199                die_error(undef, "Invalid action parameter");
 200        }
 201}
 202
 203our $project = $cgi->param('p');
 204if (defined $project) {
 205        if (!validate_input($project) ||
 206            !(-d "$projectroot/$project") ||
 207            !(-e "$projectroot/$project/HEAD") ||
 208            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 209            ($strict_export && !project_in_list($project))) {
 210                undef $project;
 211                die_error(undef, "No such project");
 212        }
 213}
 214
 215our $file_name = $cgi->param('f');
 216if (defined $file_name) {
 217        if (!validate_input($file_name)) {
 218                die_error(undef, "Invalid file parameter");
 219        }
 220}
 221
 222our $file_parent = $cgi->param('fp');
 223if (defined $file_parent) {
 224        if (!validate_input($file_parent)) {
 225                die_error(undef, "Invalid file parent parameter");
 226        }
 227}
 228
 229our $hash = $cgi->param('h');
 230if (defined $hash) {
 231        if (!validate_input($hash)) {
 232                die_error(undef, "Invalid hash parameter");
 233        }
 234}
 235
 236our $hash_parent = $cgi->param('hp');
 237if (defined $hash_parent) {
 238        if (!validate_input($hash_parent)) {
 239                die_error(undef, "Invalid hash parent parameter");
 240        }
 241}
 242
 243our $hash_base = $cgi->param('hb');
 244if (defined $hash_base) {
 245        if (!validate_input($hash_base)) {
 246                die_error(undef, "Invalid hash base parameter");
 247        }
 248}
 249
 250our $hash_parent_base = $cgi->param('hpb');
 251if (defined $hash_parent_base) {
 252        if (!validate_input($hash_parent_base)) {
 253                die_error(undef, "Invalid hash parent base parameter");
 254        }
 255}
 256
 257our $page = $cgi->param('pg');
 258if (defined $page) {
 259        if ($page =~ m/[^0-9]/) {
 260                die_error(undef, "Invalid page parameter");
 261        }
 262}
 263
 264our $searchtext = $cgi->param('s');
 265if (defined $searchtext) {
 266        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 267                die_error(undef, "Invalid search parameter");
 268        }
 269        $searchtext = quotemeta $searchtext;
 270}
 271
 272# now read PATH_INFO and use it as alternative to parameters
 273sub evaluate_path_info {
 274        return if defined $project;
 275        my $path_info = $ENV{"PATH_INFO"};
 276        return if !$path_info;
 277        $path_info =~ s,^/+,,;
 278        return if !$path_info;
 279        # find which part of PATH_INFO is project
 280        $project = $path_info;
 281        $project =~ s,/+$,,;
 282        while ($project && !-e "$projectroot/$project/HEAD") {
 283                $project =~ s,/*[^/]*$,,;
 284        }
 285        # validate project
 286        $project = validate_input($project);
 287        if (!$project ||
 288            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 289            ($strict_export && !project_in_list($project))) {
 290                undef $project;
 291                return;
 292        }
 293        # do not change any parameters if an action is given using the query string
 294        return if $action;
 295        $path_info =~ s,^$project/*,,;
 296        my ($refname, $pathname) = split(/:/, $path_info, 2);
 297        if (defined $pathname) {
 298                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 299                # we could use git_get_type(branch:pathname), but it needs $git_dir
 300                $pathname =~ s,^/+,,;
 301                if (!$pathname || substr($pathname, -1) eq "/") {
 302                        $action  ||= "tree";
 303                        $pathname =~ s,/$,,;
 304                } else {
 305                        $action  ||= "blob_plain";
 306                }
 307                $hash_base ||= validate_input($refname);
 308                $file_name ||= validate_input($pathname);
 309        } elsif (defined $refname) {
 310                # we got "project.git/branch"
 311                $action ||= "shortlog";
 312                $hash   ||= validate_input($refname);
 313        }
 314}
 315evaluate_path_info();
 316
 317# path to the current git repository
 318our $git_dir;
 319$git_dir = "$projectroot/$project" if $project;
 320
 321# dispatch
 322my %actions = (
 323        "blame" => \&git_blame2,
 324        "blobdiff" => \&git_blobdiff,
 325        "blobdiff_plain" => \&git_blobdiff_plain,
 326        "blob" => \&git_blob,
 327        "blob_plain" => \&git_blob_plain,
 328        "commitdiff" => \&git_commitdiff,
 329        "commitdiff_plain" => \&git_commitdiff_plain,
 330        "commit" => \&git_commit,
 331        "heads" => \&git_heads,
 332        "history" => \&git_history,
 333        "log" => \&git_log,
 334        "rss" => \&git_rss,
 335        "search" => \&git_search,
 336        "shortlog" => \&git_shortlog,
 337        "summary" => \&git_summary,
 338        "tag" => \&git_tag,
 339        "tags" => \&git_tags,
 340        "tree" => \&git_tree,
 341        "snapshot" => \&git_snapshot,
 342        # those below don't need $project
 343        "opml" => \&git_opml,
 344        "project_list" => \&git_project_list,
 345        "project_index" => \&git_project_index,
 346);
 347
 348if (defined $project) {
 349        $action ||= 'summary';
 350} else {
 351        $action ||= 'project_list';
 352}
 353if (!defined($actions{$action})) {
 354        die_error(undef, "Unknown action");
 355}
 356if ($action !~ m/^(opml|project_list|project_index)$/ &&
 357    !$project) {
 358        die_error(undef, "Project needed");
 359}
 360$actions{$action}->();
 361exit;
 362
 363## ======================================================================
 364## action links
 365
 366sub href(%) {
 367        my %params = @_;
 368
 369        my @mapping = (
 370                project => "p",
 371                action => "a",
 372                file_name => "f",
 373                file_parent => "fp",
 374                hash => "h",
 375                hash_parent => "hp",
 376                hash_base => "hb",
 377                hash_parent_base => "hpb",
 378                page => "pg",
 379                order => "o",
 380                searchtext => "s",
 381        );
 382        my %mapping = @mapping;
 383
 384        $params{'project'} = $project unless exists $params{'project'};
 385
 386        my @result = ();
 387        for (my $i = 0; $i < @mapping; $i += 2) {
 388                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 389                if (defined $params{$name}) {
 390                        push @result, $symbol . "=" . esc_param($params{$name});
 391                }
 392        }
 393        return "$my_uri?" . join(';', @result);
 394}
 395
 396
 397## ======================================================================
 398## validation, quoting/unquoting and escaping
 399
 400sub validate_input {
 401        my $input = shift;
 402
 403        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 404                return $input;
 405        }
 406        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 407                return undef;
 408        }
 409        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 410                return undef;
 411        }
 412        return $input;
 413}
 414
 415# quote unsafe chars, but keep the slash, even when it's not
 416# correct, but quoted slashes look too horrible in bookmarks
 417sub esc_param {
 418        my $str = shift;
 419        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 420        $str =~ s/\+/%2B/g;
 421        $str =~ s/ /\+/g;
 422        return $str;
 423}
 424
 425# replace invalid utf8 character with SUBSTITUTION sequence
 426sub esc_html {
 427        my $str = shift;
 428        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 429        $str = escapeHTML($str);
 430        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 431        return $str;
 432}
 433
 434# git may return quoted and escaped filenames
 435sub unquote {
 436        my $str = shift;
 437        if ($str =~ m/^"(.*)"$/) {
 438                $str = $1;
 439                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 440        }
 441        return $str;
 442}
 443
 444# escape tabs (convert tabs to spaces)
 445sub untabify {
 446        my $line = shift;
 447
 448        while ((my $pos = index($line, "\t")) != -1) {
 449                if (my $count = (8 - ($pos % 8))) {
 450                        my $spaces = ' ' x $count;
 451                        $line =~ s/\t/$spaces/;
 452                }
 453        }
 454
 455        return $line;
 456}
 457
 458sub project_in_list {
 459        my $project = shift;
 460        my @list = git_get_projects_list();
 461        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 462}
 463
 464## ----------------------------------------------------------------------
 465## HTML aware string manipulation
 466
 467sub chop_str {
 468        my $str = shift;
 469        my $len = shift;
 470        my $add_len = shift || 10;
 471
 472        # allow only $len chars, but don't cut a word if it would fit in $add_len
 473        # if it doesn't fit, cut it if it's still longer than the dots we would add
 474        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 475        my $body = $1;
 476        my $tail = $2;
 477        if (length($tail) > 4) {
 478                $tail = " ...";
 479                $body =~ s/&[^;]*$//; # remove chopped character entities
 480        }
 481        return "$body$tail";
 482}
 483
 484## ----------------------------------------------------------------------
 485## functions returning short strings
 486
 487# CSS class for given age value (in seconds)
 488sub age_class {
 489        my $age = shift;
 490
 491        if ($age < 60*60*2) {
 492                return "age0";
 493        } elsif ($age < 60*60*24*2) {
 494                return "age1";
 495        } else {
 496                return "age2";
 497        }
 498}
 499
 500# convert age in seconds to "nn units ago" string
 501sub age_string {
 502        my $age = shift;
 503        my $age_str;
 504
 505        if ($age > 60*60*24*365*2) {
 506                $age_str = (int $age/60/60/24/365);
 507                $age_str .= " years ago";
 508        } elsif ($age > 60*60*24*(365/12)*2) {
 509                $age_str = int $age/60/60/24/(365/12);
 510                $age_str .= " months ago";
 511        } elsif ($age > 60*60*24*7*2) {
 512                $age_str = int $age/60/60/24/7;
 513                $age_str .= " weeks ago";
 514        } elsif ($age > 60*60*24*2) {
 515                $age_str = int $age/60/60/24;
 516                $age_str .= " days ago";
 517        } elsif ($age > 60*60*2) {
 518                $age_str = int $age/60/60;
 519                $age_str .= " hours ago";
 520        } elsif ($age > 60*2) {
 521                $age_str = int $age/60;
 522                $age_str .= " min ago";
 523        } elsif ($age > 2) {
 524                $age_str = int $age;
 525                $age_str .= " sec ago";
 526        } else {
 527                $age_str .= " right now";
 528        }
 529        return $age_str;
 530}
 531
 532# convert file mode in octal to symbolic file mode string
 533sub mode_str {
 534        my $mode = oct shift;
 535
 536        if (S_ISDIR($mode & S_IFMT)) {
 537                return 'drwxr-xr-x';
 538        } elsif (S_ISLNK($mode)) {
 539                return 'lrwxrwxrwx';
 540        } elsif (S_ISREG($mode)) {
 541                # git cares only about the executable bit
 542                if ($mode & S_IXUSR) {
 543                        return '-rwxr-xr-x';
 544                } else {
 545                        return '-rw-r--r--';
 546                };
 547        } else {
 548                return '----------';
 549        }
 550}
 551
 552# convert file mode in octal to file type string
 553sub file_type {
 554        my $mode = shift;
 555
 556        if ($mode !~ m/^[0-7]+$/) {
 557                return $mode;
 558        } else {
 559                $mode = oct $mode;
 560        }
 561
 562        if (S_ISDIR($mode & S_IFMT)) {
 563                return "directory";
 564        } elsif (S_ISLNK($mode)) {
 565                return "symlink";
 566        } elsif (S_ISREG($mode)) {
 567                return "file";
 568        } else {
 569                return "unknown";
 570        }
 571}
 572
 573## ----------------------------------------------------------------------
 574## functions returning short HTML fragments, or transforming HTML fragments
 575## which don't beling to other sections
 576
 577# format line of commit message or tag comment
 578sub format_log_line_html {
 579        my $line = shift;
 580
 581        $line = esc_html($line);
 582        $line =~ s/ /&nbsp;/g;
 583        if ($line =~ m/([0-9a-fA-F]{40})/) {
 584                my $hash_text = $1;
 585                if (git_get_type($hash_text) eq "commit") {
 586                        my $link =
 587                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 588                                        -class => "text"}, $hash_text);
 589                        $line =~ s/$hash_text/$link/;
 590                }
 591        }
 592        return $line;
 593}
 594
 595# format marker of refs pointing to given object
 596sub format_ref_marker {
 597        my ($refs, $id) = @_;
 598        my $markers = '';
 599
 600        if (defined $refs->{$id}) {
 601                foreach my $ref (@{$refs->{$id}}) {
 602                        my ($type, $name) = qw();
 603                        # e.g. tags/v2.6.11 or heads/next
 604                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 605                                $type = $1;
 606                                $name = $2;
 607                        } else {
 608                                $type = "ref";
 609                                $name = $ref;
 610                        }
 611
 612                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 613                }
 614        }
 615
 616        if ($markers) {
 617                return ' <span class="refs">'. $markers . '</span>';
 618        } else {
 619                return "";
 620        }
 621}
 622
 623# format, perhaps shortened and with markers, title line
 624sub format_subject_html {
 625        my ($long, $short, $href, $extra) = @_;
 626        $extra = '' unless defined($extra);
 627
 628        if (length($short) < length($long)) {
 629                return $cgi->a({-href => $href, -class => "list subject",
 630                                -title => $long},
 631                       esc_html($short) . $extra);
 632        } else {
 633                return $cgi->a({-href => $href, -class => "list subject"},
 634                       esc_html($long)  . $extra);
 635        }
 636}
 637
 638sub format_diff_line {
 639        my $line = shift;
 640        my $char = substr($line, 0, 1);
 641        my $diff_class = "";
 642
 643        chomp $line;
 644
 645        if ($char eq '+') {
 646                $diff_class = " add";
 647        } elsif ($char eq "-") {
 648                $diff_class = " rem";
 649        } elsif ($char eq "@") {
 650                $diff_class = " chunk_header";
 651        } elsif ($char eq "\\") {
 652                $diff_class = " incomplete";
 653        }
 654        $line = untabify($line);
 655        return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 656}
 657
 658## ----------------------------------------------------------------------
 659## git utility subroutines, invoking git commands
 660
 661# returns path to the core git executable and the --git-dir parameter as list
 662sub git_cmd {
 663        return $GIT, '--git-dir='.$git_dir;
 664}
 665
 666# returns path to the core git executable and the --git-dir parameter as string
 667sub git_cmd_str {
 668        return join(' ', git_cmd());
 669}
 670
 671# get HEAD ref of given project as hash
 672sub git_get_head_hash {
 673        my $project = shift;
 674        my $o_git_dir = $git_dir;
 675        my $retval = undef;
 676        $git_dir = "$projectroot/$project";
 677        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 678                my $head = <$fd>;
 679                close $fd;
 680                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 681                        $retval = $1;
 682                }
 683        }
 684        if (defined $o_git_dir) {
 685                $git_dir = $o_git_dir;
 686        }
 687        return $retval;
 688}
 689
 690# get type of given object
 691sub git_get_type {
 692        my $hash = shift;
 693
 694        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 695        my $type = <$fd>;
 696        close $fd or return;
 697        chomp $type;
 698        return $type;
 699}
 700
 701sub git_get_project_config {
 702        my ($key, $type) = @_;
 703
 704        return unless ($key);
 705        $key =~ s/^gitweb\.//;
 706        return if ($key =~ m/\W/);
 707
 708        my @x = (git_cmd(), 'repo-config');
 709        if (defined $type) { push @x, $type; }
 710        push @x, "--get";
 711        push @x, "gitweb.$key";
 712        my $val = qx(@x);
 713        chomp $val;
 714        return ($val);
 715}
 716
 717# get hash of given path at given ref
 718sub git_get_hash_by_path {
 719        my $base = shift;
 720        my $path = shift || return undef;
 721        my $type = shift;
 722
 723        my $tree = $base;
 724
 725        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 726                or die_error(undef, "Open git-ls-tree failed");
 727        my $line = <$fd>;
 728        close $fd or return undef;
 729
 730        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 731        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 732        if (defined $type && $type ne $2) {
 733                # type doesn't match
 734                return undef;
 735        }
 736        return $3;
 737}
 738
 739## ......................................................................
 740## git utility functions, directly accessing git repository
 741
 742sub git_get_project_description {
 743        my $path = shift;
 744
 745        open my $fd, "$projectroot/$path/description" or return undef;
 746        my $descr = <$fd>;
 747        close $fd;
 748        chomp $descr;
 749        return $descr;
 750}
 751
 752sub git_get_project_url_list {
 753        my $path = shift;
 754
 755        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 756        my @git_project_url_list = map { chomp; $_ } <$fd>;
 757        close $fd;
 758
 759        return wantarray ? @git_project_url_list : \@git_project_url_list;
 760}
 761
 762sub git_get_projects_list {
 763        my @list;
 764
 765        if (-d $projects_list) {
 766                # search in directory
 767                my $dir = $projects_list;
 768                my $pfxlen = length("$dir");
 769
 770                File::Find::find({
 771                        follow_fast => 1, # follow symbolic links
 772                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 773                        wanted => sub {
 774                                # skip project-list toplevel, if we get it.
 775                                return if (m!^[/.]$!);
 776                                # only directories can be git repositories
 777                                return unless (-d $_);
 778
 779                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 780                                # we check related file in $projectroot
 781                                if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 782                                    -e "$projectroot/$subdir/$export_ok")) {
 783                                        push @list, { path => $subdir };
 784                                        $File::Find::prune = 1;
 785                                }
 786                        },
 787                }, "$dir");
 788
 789        } elsif (-f $projects_list) {
 790                # read from file(url-encoded):
 791                # 'git%2Fgit.git Linus+Torvalds'
 792                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 793                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 794                open my ($fd), $projects_list or return undef;
 795                while (my $line = <$fd>) {
 796                        chomp $line;
 797                        my ($path, $owner) = split ' ', $line;
 798                        $path = unescape($path);
 799                        $owner = unescape($owner);
 800                        if (!defined $path) {
 801                                next;
 802                        }
 803                        if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 804                            -e "$projectroot/$path/$export_ok")) {
 805                                my $pr = {
 806                                        path => $path,
 807                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 808                                };
 809                                push @list, $pr
 810                        }
 811                }
 812                close $fd;
 813        }
 814        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 815        return @list;
 816}
 817
 818sub git_get_project_owner {
 819        my $project = shift;
 820        my $owner;
 821
 822        return undef unless $project;
 823
 824        # read from file (url-encoded):
 825        # 'git%2Fgit.git Linus+Torvalds'
 826        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 827        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 828        if (-f $projects_list) {
 829                open (my $fd , $projects_list);
 830                while (my $line = <$fd>) {
 831                        chomp $line;
 832                        my ($pr, $ow) = split ' ', $line;
 833                        $pr = unescape($pr);
 834                        $ow = unescape($ow);
 835                        if ($pr eq $project) {
 836                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 837                                last;
 838                        }
 839                }
 840                close $fd;
 841        }
 842        if (!defined $owner) {
 843                $owner = get_file_owner("$projectroot/$project");
 844        }
 845
 846        return $owner;
 847}
 848
 849sub git_get_references {
 850        my $type = shift || "";
 851        my %refs;
 852        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 853        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 854        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 855                or return;
 856
 857        while (my $line = <$fd>) {
 858                chomp $line;
 859                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 860                        if (defined $refs{$1}) {
 861                                push @{$refs{$1}}, $2;
 862                        } else {
 863                                $refs{$1} = [ $2 ];
 864                        }
 865                }
 866        }
 867        close $fd or return;
 868        return \%refs;
 869}
 870
 871sub git_get_rev_name_tags {
 872        my $hash = shift || return undef;
 873
 874        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 875                or return;
 876        my $name_rev = <$fd>;
 877        close $fd;
 878
 879        if ($name_rev =~ m|^$hash tags/(.*)$|) {
 880                return $1;
 881        } else {
 882                # catches also '$hash undefined' output
 883                return undef;
 884        }
 885}
 886
 887## ----------------------------------------------------------------------
 888## parse to hash functions
 889
 890sub parse_date {
 891        my $epoch = shift;
 892        my $tz = shift || "-0000";
 893
 894        my %date;
 895        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 896        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 897        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 898        $date{'hour'} = $hour;
 899        $date{'minute'} = $min;
 900        $date{'mday'} = $mday;
 901        $date{'day'} = $days[$wday];
 902        $date{'month'} = $months[$mon];
 903        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 904                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 905        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 906                             $mday, $months[$mon], $hour ,$min;
 907
 908        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 909        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 910        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 911        $date{'hour_local'} = $hour;
 912        $date{'minute_local'} = $min;
 913        $date{'tz_local'} = $tz;
 914        return %date;
 915}
 916
 917sub parse_tag {
 918        my $tag_id = shift;
 919        my %tag;
 920        my @comment;
 921
 922        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 923        $tag{'id'} = $tag_id;
 924        while (my $line = <$fd>) {
 925                chomp $line;
 926                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 927                        $tag{'object'} = $1;
 928                } elsif ($line =~ m/^type (.+)$/) {
 929                        $tag{'type'} = $1;
 930                } elsif ($line =~ m/^tag (.+)$/) {
 931                        $tag{'name'} = $1;
 932                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 933                        $tag{'author'} = $1;
 934                        $tag{'epoch'} = $2;
 935                        $tag{'tz'} = $3;
 936                } elsif ($line =~ m/--BEGIN/) {
 937                        push @comment, $line;
 938                        last;
 939                } elsif ($line eq "") {
 940                        last;
 941                }
 942        }
 943        push @comment, <$fd>;
 944        $tag{'comment'} = \@comment;
 945        close $fd or return;
 946        if (!defined $tag{'name'}) {
 947                return
 948        };
 949        return %tag
 950}
 951
 952sub parse_commit {
 953        my $commit_id = shift;
 954        my $commit_text = shift;
 955
 956        my @commit_lines;
 957        my %co;
 958
 959        if (defined $commit_text) {
 960                @commit_lines = @$commit_text;
 961        } else {
 962                $/ = "\0";
 963                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 964                        or return;
 965                @commit_lines = split '\n', <$fd>;
 966                close $fd or return;
 967                $/ = "\n";
 968                pop @commit_lines;
 969        }
 970        my $header = shift @commit_lines;
 971        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 972                return;
 973        }
 974        ($co{'id'}, my @parents) = split ' ', $header;
 975        $co{'parents'} = \@parents;
 976        $co{'parent'} = $parents[0];
 977        while (my $line = shift @commit_lines) {
 978                last if $line eq "\n";
 979                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 980                        $co{'tree'} = $1;
 981                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 982                        $co{'author'} = $1;
 983                        $co{'author_epoch'} = $2;
 984                        $co{'author_tz'} = $3;
 985                        if ($co{'author'} =~ m/^([^<]+) </) {
 986                                $co{'author_name'} = $1;
 987                        } else {
 988                                $co{'author_name'} = $co{'author'};
 989                        }
 990                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 991                        $co{'committer'} = $1;
 992                        $co{'committer_epoch'} = $2;
 993                        $co{'committer_tz'} = $3;
 994                        $co{'committer_name'} = $co{'committer'};
 995                        $co{'committer_name'} =~ s/ <.*//;
 996                }
 997        }
 998        if (!defined $co{'tree'}) {
 999                return;
1000        };
1001
1002        foreach my $title (@commit_lines) {
1003                $title =~ s/^    //;
1004                if ($title ne "") {
1005                        $co{'title'} = chop_str($title, 80, 5);
1006                        # remove leading stuff of merges to make the interesting part visible
1007                        if (length($title) > 50) {
1008                                $title =~ s/^Automatic //;
1009                                $title =~ s/^merge (of|with) /Merge ... /i;
1010                                if (length($title) > 50) {
1011                                        $title =~ s/(http|rsync):\/\///;
1012                                }
1013                                if (length($title) > 50) {
1014                                        $title =~ s/(master|www|rsync)\.//;
1015                                }
1016                                if (length($title) > 50) {
1017                                        $title =~ s/kernel.org:?//;
1018                                }
1019                                if (length($title) > 50) {
1020                                        $title =~ s/\/pub\/scm//;
1021                                }
1022                        }
1023                        $co{'title_short'} = chop_str($title, 50, 5);
1024                        last;
1025                }
1026        }
1027        # remove added spaces
1028        foreach my $line (@commit_lines) {
1029                $line =~ s/^    //;
1030        }
1031        $co{'comment'} = \@commit_lines;
1032
1033        my $age = time - $co{'committer_epoch'};
1034        $co{'age'} = $age;
1035        $co{'age_string'} = age_string($age);
1036        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1037        if ($age > 60*60*24*7*2) {
1038                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1039                $co{'age_string_age'} = $co{'age_string'};
1040        } else {
1041                $co{'age_string_date'} = $co{'age_string'};
1042                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1043        }
1044        return %co;
1045}
1046
1047# parse ref from ref_file, given by ref_id, with given type
1048sub parse_ref {
1049        my $ref_file = shift;
1050        my $ref_id = shift;
1051        my $type = shift || git_get_type($ref_id);
1052        my %ref_item;
1053
1054        $ref_item{'type'} = $type;
1055        $ref_item{'id'} = $ref_id;
1056        $ref_item{'epoch'} = 0;
1057        $ref_item{'age'} = "unknown";
1058        if ($type eq "tag") {
1059                my %tag = parse_tag($ref_id);
1060                $ref_item{'comment'} = $tag{'comment'};
1061                if ($tag{'type'} eq "commit") {
1062                        my %co = parse_commit($tag{'object'});
1063                        $ref_item{'epoch'} = $co{'committer_epoch'};
1064                        $ref_item{'age'} = $co{'age_string'};
1065                } elsif (defined($tag{'epoch'})) {
1066                        my $age = time - $tag{'epoch'};
1067                        $ref_item{'epoch'} = $tag{'epoch'};
1068                        $ref_item{'age'} = age_string($age);
1069                }
1070                $ref_item{'reftype'} = $tag{'type'};
1071                $ref_item{'name'} = $tag{'name'};
1072                $ref_item{'refid'} = $tag{'object'};
1073        } elsif ($type eq "commit"){
1074                my %co = parse_commit($ref_id);
1075                $ref_item{'reftype'} = "commit";
1076                $ref_item{'name'} = $ref_file;
1077                $ref_item{'title'} = $co{'title'};
1078                $ref_item{'refid'} = $ref_id;
1079                $ref_item{'epoch'} = $co{'committer_epoch'};
1080                $ref_item{'age'} = $co{'age_string'};
1081        } else {
1082                $ref_item{'reftype'} = $type;
1083                $ref_item{'name'} = $ref_file;
1084                $ref_item{'refid'} = $ref_id;
1085        }
1086
1087        return %ref_item;
1088}
1089
1090# parse line of git-diff-tree "raw" output
1091sub parse_difftree_raw_line {
1092        my $line = shift;
1093        my %res;
1094
1095        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1096        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1097        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1098                $res{'from_mode'} = $1;
1099                $res{'to_mode'} = $2;
1100                $res{'from_id'} = $3;
1101                $res{'to_id'} = $4;
1102                $res{'status'} = $5;
1103                $res{'similarity'} = $6;
1104                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1105                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1106                } else {
1107                        $res{'file'} = unquote($7);
1108                }
1109        }
1110        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1111        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1112                $res{'commit'} = $1;
1113        }
1114
1115        return wantarray ? %res : \%res;
1116}
1117
1118# parse line of git-ls-tree output
1119sub parse_ls_tree_line ($;%) {
1120        my $line = shift;
1121        my %opts = @_;
1122        my %res;
1123
1124        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1125        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1126
1127        $res{'mode'} = $1;
1128        $res{'type'} = $2;
1129        $res{'hash'} = $3;
1130        if ($opts{'-z'}) {
1131                $res{'name'} = $4;
1132        } else {
1133                $res{'name'} = unquote($4);
1134        }
1135
1136        return wantarray ? %res : \%res;
1137}
1138
1139## ......................................................................
1140## parse to array of hashes functions
1141
1142sub git_get_refs_list {
1143        my $type = shift || "";
1144        my %refs;
1145        my @reflist;
1146
1147        my @refs;
1148        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1149                or return;
1150        while (my $line = <$fd>) {
1151                chomp $line;
1152                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1153                        if (defined $refs{$1}) {
1154                                push @{$refs{$1}}, $2;
1155                        } else {
1156                                $refs{$1} = [ $2 ];
1157                        }
1158
1159                        if (! $4) { # unpeeled, direct reference
1160                                push @refs, { hash => $1, name => $3 }; # without type
1161                        } elsif ($3 eq $refs[-1]{'name'}) {
1162                                # most likely a tag is followed by its peeled
1163                                # (deref) one, and when that happens we know the
1164                                # previous one was of type 'tag'.
1165                                $refs[-1]{'type'} = "tag";
1166                        }
1167                }
1168        }
1169        close $fd;
1170
1171        foreach my $ref (@refs) {
1172                my $ref_file = $ref->{'name'};
1173                my $ref_id   = $ref->{'hash'};
1174
1175                my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1176                my %ref_item = parse_ref($ref_file, $ref_id, $type);
1177
1178                push @reflist, \%ref_item;
1179        }
1180        # sort refs by age
1181        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1182        return (\@reflist, \%refs);
1183}
1184
1185## ----------------------------------------------------------------------
1186## filesystem-related functions
1187
1188sub get_file_owner {
1189        my $path = shift;
1190
1191        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1192        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1193        if (!defined $gcos) {
1194                return undef;
1195        }
1196        my $owner = $gcos;
1197        $owner =~ s/[,;].*$//;
1198        return decode("utf8", $owner, Encode::FB_DEFAULT);
1199}
1200
1201## ......................................................................
1202## mimetype related functions
1203
1204sub mimetype_guess_file {
1205        my $filename = shift;
1206        my $mimemap = shift;
1207        -r $mimemap or return undef;
1208
1209        my %mimemap;
1210        open(MIME, $mimemap) or return undef;
1211        while (<MIME>) {
1212                next if m/^#/; # skip comments
1213                my ($mime, $exts) = split(/\t+/);
1214                if (defined $exts) {
1215                        my @exts = split(/\s+/, $exts);
1216                        foreach my $ext (@exts) {
1217                                $mimemap{$ext} = $mime;
1218                        }
1219                }
1220        }
1221        close(MIME);
1222
1223        $filename =~ /\.([^.]*)$/;
1224        return $mimemap{$1};
1225}
1226
1227sub mimetype_guess {
1228        my $filename = shift;
1229        my $mime;
1230        $filename =~ /\./ or return undef;
1231
1232        if ($mimetypes_file) {
1233                my $file = $mimetypes_file;
1234                if ($file !~ m!^/!) { # if it is relative path
1235                        # it is relative to project
1236                        $file = "$projectroot/$project/$file";
1237                }
1238                $mime = mimetype_guess_file($filename, $file);
1239        }
1240        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1241        return $mime;
1242}
1243
1244sub blob_mimetype {
1245        my $fd = shift;
1246        my $filename = shift;
1247
1248        if ($filename) {
1249                my $mime = mimetype_guess($filename);
1250                $mime and return $mime;
1251        }
1252
1253        # just in case
1254        return $default_blob_plain_mimetype unless $fd;
1255
1256        if (-T $fd) {
1257                return 'text/plain' .
1258                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1259        } elsif (! $filename) {
1260                return 'application/octet-stream';
1261        } elsif ($filename =~ m/\.png$/i) {
1262                return 'image/png';
1263        } elsif ($filename =~ m/\.gif$/i) {
1264                return 'image/gif';
1265        } elsif ($filename =~ m/\.jpe?g$/i) {
1266                return 'image/jpeg';
1267        } else {
1268                return 'application/octet-stream';
1269        }
1270}
1271
1272## ======================================================================
1273## functions printing HTML: header, footer, error page
1274
1275sub git_header_html {
1276        my $status = shift || "200 OK";
1277        my $expires = shift;
1278
1279        my $title = "$site_name git";
1280        if (defined $project) {
1281                $title .= " - $project";
1282                if (defined $action) {
1283                        $title .= "/$action";
1284                        if (defined $file_name) {
1285                                $title .= " - $file_name";
1286                                if ($action eq "tree" && $file_name !~ m|/$|) {
1287                                        $title .= "/";
1288                                }
1289                        }
1290                }
1291        }
1292        my $content_type;
1293        # require explicit support from the UA if we are to send the page as
1294        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1295        # we have to do this because MSIE sometimes globs '*/*', pretending to
1296        # support xhtml+xml but choking when it gets what it asked for.
1297        if (defined $cgi->http('HTTP_ACCEPT') &&
1298            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1299            $cgi->Accept('application/xhtml+xml') != 0) {
1300                $content_type = 'application/xhtml+xml';
1301        } else {
1302                $content_type = 'text/html';
1303        }
1304        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1305                           -status=> $status, -expires => $expires);
1306        print <<EOF;
1307<?xml version="1.0" encoding="utf-8"?>
1308<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1309<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1310<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1311<!-- git core binaries version $git_version -->
1312<head>
1313<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1314<meta name="generator" content="gitweb/$version git/$git_version"/>
1315<meta name="robots" content="index, nofollow"/>
1316<title>$title</title>
1317<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1318EOF
1319        if (defined $project) {
1320                printf('<link rel="alternate" title="%s log" '.
1321                       'href="%s" type="application/rss+xml"/>'."\n",
1322                       esc_param($project), href(action=>"rss"));
1323        } else {
1324                printf('<link rel="alternate" title="%s projects list" '.
1325                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1326                       $site_name, href(project=>undef, action=>"project_index"));
1327                printf('<link rel="alternate" title="%s projects logs" '.
1328                       'href="%s" type="text/x-opml"/>'."\n",
1329                       $site_name, href(project=>undef, action=>"opml"));
1330        }
1331        if (defined $favicon) {
1332                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1333        }
1334
1335        print "</head>\n" .
1336              "<body>\n" .
1337              "<div class=\"page_header\">\n" .
1338              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1339              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1340              "</a>\n";
1341        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1342        if (defined $project) {
1343                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1344                if (defined $action) {
1345                        print " / $action";
1346                }
1347                print "\n";
1348                if (!defined $searchtext) {
1349                        $searchtext = "";
1350                }
1351                my $search_hash;
1352                if (defined $hash_base) {
1353                        $search_hash = $hash_base;
1354                } elsif (defined $hash) {
1355                        $search_hash = $hash;
1356                } else {
1357                        $search_hash = "HEAD";
1358                }
1359                $cgi->param("a", "search");
1360                $cgi->param("h", $search_hash);
1361                print $cgi->startform(-method => "get", -action => $my_uri) .
1362                      "<div class=\"search\">\n" .
1363                      $cgi->hidden(-name => "p") . "\n" .
1364                      $cgi->hidden(-name => "a") . "\n" .
1365                      $cgi->hidden(-name => "h") . "\n" .
1366                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1367                      "</div>" .
1368                      $cgi->end_form() . "\n";
1369        }
1370        print "</div>\n";
1371}
1372
1373sub git_footer_html {
1374        print "<div class=\"page_footer\">\n";
1375        if (defined $project) {
1376                my $descr = git_get_project_description($project);
1377                if (defined $descr) {
1378                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1379                }
1380                print $cgi->a({-href => href(action=>"rss"),
1381                              -class => "rss_logo"}, "RSS") . "\n";
1382        } else {
1383                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1384                              -class => "rss_logo"}, "OPML") . " ";
1385                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1386                              -class => "rss_logo"}, "TXT") . "\n";
1387        }
1388        print "</div>\n" .
1389              "</body>\n" .
1390              "</html>";
1391}
1392
1393sub die_error {
1394        my $status = shift || "403 Forbidden";
1395        my $error = shift || "Malformed query, file missing or permission denied";
1396
1397        git_header_html($status);
1398        print <<EOF;
1399<div class="page_body">
1400<br /><br />
1401$status - $error
1402<br />
1403</div>
1404EOF
1405        git_footer_html();
1406        exit;
1407}
1408
1409## ----------------------------------------------------------------------
1410## functions printing or outputting HTML: navigation
1411
1412sub git_print_page_nav {
1413        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1414        $extra = '' if !defined $extra; # pager or formats
1415
1416        my @navs = qw(summary shortlog log commit commitdiff tree);
1417        if ($suppress) {
1418                @navs = grep { $_ ne $suppress } @navs;
1419        }
1420
1421        my %arg = map { $_ => {action=>$_} } @navs;
1422        if (defined $head) {
1423                for (qw(commit commitdiff)) {
1424                        $arg{$_}{hash} = $head;
1425                }
1426                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1427                        for (qw(shortlog log)) {
1428                                $arg{$_}{hash} = $head;
1429                        }
1430                }
1431        }
1432        $arg{tree}{hash} = $treehead if defined $treehead;
1433        $arg{tree}{hash_base} = $treebase if defined $treebase;
1434
1435        print "<div class=\"page_nav\">\n" .
1436                (join " | ",
1437                 map { $_ eq $current ?
1438                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1439                 } @navs);
1440        print "<br/>\n$extra<br/>\n" .
1441              "</div>\n";
1442}
1443
1444sub format_paging_nav {
1445        my ($action, $hash, $head, $page, $nrevs) = @_;
1446        my $paging_nav;
1447
1448
1449        if ($hash ne $head || $page) {
1450                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1451        } else {
1452                $paging_nav .= "HEAD";
1453        }
1454
1455        if ($page > 0) {
1456                $paging_nav .= " &sdot; " .
1457                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1458                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1459        } else {
1460                $paging_nav .= " &sdot; prev";
1461        }
1462
1463        if ($nrevs >= (100 * ($page+1)-1)) {
1464                $paging_nav .= " &sdot; " .
1465                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1466                                 -accesskey => "n", -title => "Alt-n"}, "next");
1467        } else {
1468                $paging_nav .= " &sdot; next";
1469        }
1470
1471        return $paging_nav;
1472}
1473
1474## ......................................................................
1475## functions printing or outputting HTML: div
1476
1477sub git_print_header_div {
1478        my ($action, $title, $hash, $hash_base) = @_;
1479        my %args = ();
1480
1481        $args{action} = $action;
1482        $args{hash} = $hash if $hash;
1483        $args{hash_base} = $hash_base if $hash_base;
1484
1485        print "<div class=\"header\">\n" .
1486              $cgi->a({-href => href(%args), -class => "title"},
1487              $title ? $title : $action) .
1488              "\n</div>\n";
1489}
1490
1491#sub git_print_authorship (\%) {
1492sub git_print_authorship {
1493        my $co = shift;
1494
1495        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1496        print "<div class=\"author_date\">" .
1497              esc_html($co->{'author_name'}) .
1498              " [$ad{'rfc2822'}";
1499        if ($ad{'hour_local'} < 6) {
1500                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1501                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1502        } else {
1503                printf(" (%02d:%02d %s)",
1504                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1505        }
1506        print "]</div>\n";
1507}
1508
1509sub git_print_page_path {
1510        my $name = shift;
1511        my $type = shift;
1512        my $hb = shift;
1513
1514        if (!defined $name) {
1515                print "<div class=\"page_path\">/</div>\n";
1516        } else {
1517                my @dirname = split '/', $name;
1518                my $basename = pop @dirname;
1519                my $fullname = '';
1520
1521                print "<div class=\"page_path\">";
1522                print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1523                              -title => '/'}, '/');
1524                print " ";
1525                foreach my $dir (@dirname) {
1526                        $fullname .= ($fullname ? '/' : '') . $dir;
1527                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1528                                                     hash_base=>$hb),
1529                                      -title => $fullname}, esc_html($dir . '/'));
1530                        print " ";
1531                }
1532                if (defined $type && $type eq 'blob') {
1533                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1534                                                     hash_base=>$hb),
1535                                      -title => $name}, esc_html($basename));
1536                } elsif (defined $type && $type eq 'tree') {
1537                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1538                                                     hash_base=>$hb),
1539                                      -title => $name}, esc_html($basename . '/'));
1540                } else {
1541                        print esc_html($basename);
1542                }
1543                print "<br/></div>\n";
1544        }
1545}
1546
1547# sub git_print_log (\@;%) {
1548sub git_print_log ($;%) {
1549        my $log = shift;
1550        my %opts = @_;
1551
1552        if ($opts{'-remove_title'}) {
1553                # remove title, i.e. first line of log
1554                shift @$log;
1555        }
1556        # remove leading empty lines
1557        while (defined $log->[0] && $log->[0] eq "") {
1558                shift @$log;
1559        }
1560
1561        # print log
1562        my $signoff = 0;
1563        my $empty = 0;
1564        foreach my $line (@$log) {
1565                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1566                        $signoff = 1;
1567                        $empty = 0;
1568                        if (! $opts{'-remove_signoff'}) {
1569                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1570                                next;
1571                        } else {
1572                                # remove signoff lines
1573                                next;
1574                        }
1575                } else {
1576                        $signoff = 0;
1577                }
1578
1579                # print only one empty line
1580                # do not print empty line after signoff
1581                if ($line eq "") {
1582                        next if ($empty || $signoff);
1583                        $empty = 1;
1584                } else {
1585                        $empty = 0;
1586                }
1587
1588                print format_log_line_html($line) . "<br/>\n";
1589        }
1590
1591        if ($opts{'-final_empty_line'}) {
1592                # end with single empty line
1593                print "<br/>\n" unless $empty;
1594        }
1595}
1596
1597sub git_print_simplified_log {
1598        my $log = shift;
1599        my $remove_title = shift;
1600
1601        git_print_log($log,
1602                -final_empty_line=> 1,
1603                -remove_title => $remove_title);
1604}
1605
1606# print tree entry (row of git_tree), but without encompassing <tr> element
1607sub git_print_tree_entry {
1608        my ($t, $basedir, $hash_base, $have_blame) = @_;
1609
1610        my %base_key = ();
1611        $base_key{hash_base} = $hash_base if defined $hash_base;
1612
1613        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1614        if ($t->{'type'} eq "blob") {
1615                print "<td class=\"list\">" .
1616                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1617                                             file_name=>"$basedir$t->{'name'}", %base_key),
1618                              -class => "list"}, esc_html($t->{'name'})) .
1619                      "</td>\n" .
1620                      "<td class=\"link\">" .
1621                      $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1622                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1623                              "blob");
1624                if ($have_blame) {
1625                        print " | " .
1626                                $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1627                                                       file_name=>"$basedir$t->{'name'}", %base_key)},
1628                                        "blame");
1629                }
1630                if (defined $hash_base) {
1631                        print " | " .
1632                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1633                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1634                                      "history");
1635                }
1636                print " | " .
1637                      $cgi->a({-href => href(action=>"blob_plain",
1638                                             hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1639                              "raw") .
1640                      "</td>\n";
1641
1642        } elsif ($t->{'type'} eq "tree") {
1643                print "<td class=\"list\">" .
1644                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1645                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1646                              esc_html($t->{'name'})) .
1647                      "</td>\n" .
1648                      "<td class=\"link\">" .
1649                      $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1650                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1651                              "tree");
1652                if (defined $hash_base) {
1653                        print " | " .
1654                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1655                                                     file_name=>"$basedir$t->{'name'}")},
1656                                      "history");
1657                }
1658                print "</td>\n";
1659        }
1660}
1661
1662## ......................................................................
1663## functions printing large fragments of HTML
1664
1665sub git_difftree_body {
1666        my ($difftree, $hash, $parent) = @_;
1667
1668        print "<div class=\"list_head\">\n";
1669        if ($#{$difftree} > 10) {
1670                print(($#{$difftree} + 1) . " files changed:\n");
1671        }
1672        print "</div>\n";
1673
1674        print "<table class=\"diff_tree\">\n";
1675        my $alternate = 0;
1676        my $patchno = 0;
1677        foreach my $line (@{$difftree}) {
1678                my %diff = parse_difftree_raw_line($line);
1679
1680                if ($alternate) {
1681                        print "<tr class=\"dark\">\n";
1682                } else {
1683                        print "<tr class=\"light\">\n";
1684                }
1685                $alternate ^= 1;
1686
1687                my ($to_mode_oct, $to_mode_str, $to_file_type);
1688                my ($from_mode_oct, $from_mode_str, $from_file_type);
1689                if ($diff{'to_mode'} ne ('0' x 6)) {
1690                        $to_mode_oct = oct $diff{'to_mode'};
1691                        if (S_ISREG($to_mode_oct)) { # only for regular file
1692                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1693                        }
1694                        $to_file_type = file_type($diff{'to_mode'});
1695                }
1696                if ($diff{'from_mode'} ne ('0' x 6)) {
1697                        $from_mode_oct = oct $diff{'from_mode'};
1698                        if (S_ISREG($to_mode_oct)) { # only for regular file
1699                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1700                        }
1701                        $from_file_type = file_type($diff{'from_mode'});
1702                }
1703
1704                if ($diff{'status'} eq "A") { # created
1705                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1706                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1707                        $mode_chng   .= "]</span>";
1708                        print "<td>" .
1709                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1710                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1711                                      -class => "list"}, esc_html($diff{'file'})) .
1712                              "</td>\n" .
1713                              "<td>$mode_chng</td>\n" .
1714                              "<td class=\"link\">" .
1715                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1716                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1717                                      "blob");
1718                        if ($action eq 'commitdiff') {
1719                                # link to patch
1720                                $patchno++;
1721                                print " | " .
1722                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1723                        }
1724                        print "</td>\n";
1725
1726                } elsif ($diff{'status'} eq "D") { # deleted
1727                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1728                        print "<td>" .
1729                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1730                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1731                                       -class => "list"}, esc_html($diff{'file'})) .
1732                              "</td>\n" .
1733                              "<td>$mode_chng</td>\n" .
1734                              "<td class=\"link\">" .
1735                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1736                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1737                                      "blob") .
1738                              " | ";
1739                        if ($action eq 'commitdiff') {
1740                                # link to patch
1741                                $patchno++;
1742                                print " | " .
1743                                      $cgi->a({-href => "#patch$patchno"}, "patch");
1744                        }
1745                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1746                                                     file_name=>$diff{'file'})},
1747                                      "history") .
1748                              "</td>\n";
1749
1750                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1751                        my $mode_chnge = "";
1752                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1753                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1754                                if ($from_file_type != $to_file_type) {
1755                                        $mode_chnge .= " from $from_file_type to $to_file_type";
1756                                }
1757                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1758                                        if ($from_mode_str && $to_mode_str) {
1759                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1760                                        } elsif ($to_mode_str) {
1761                                                $mode_chnge .= " mode: $to_mode_str";
1762                                        }
1763                                }
1764                                $mode_chnge .= "]</span>\n";
1765                        }
1766                        print "<td>";
1767                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1768                                print $cgi->a({-href => href(action=>"blobdiff",
1769                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1770                                                             hash_base=>$hash, hash_parent_base=>$parent,
1771                                                             file_name=>$diff{'file'}),
1772                                              -class => "list"}, esc_html($diff{'file'}));
1773                        } else { # only mode changed
1774                                print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1775                                                             hash_base=>$hash, file_name=>$diff{'file'}),
1776                                              -class => "list"}, esc_html($diff{'file'}));
1777                        }
1778                        print "</td>\n" .
1779                              "<td>$mode_chnge</td>\n" .
1780                              "<td class=\"link\">" .
1781                              $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1782                                                     hash_base=>$hash, file_name=>$diff{'file'})},
1783                                      "blob");
1784                        if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1785                                if ($action eq 'commitdiff') {
1786                                        # link to patch
1787                                        $patchno++;
1788                                        print " | " .
1789                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1790                                } else {
1791                                        print " | " .
1792                                                $cgi->a({-href => href(action=>"blobdiff",
1793                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1794                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1795                                                                       file_name=>$diff{'file'})},
1796                                                        "diff");
1797                                }
1798                        }
1799                        print " | " .
1800                                $cgi->a({-href => href(action=>"history",
1801                                                       hash_base=>$hash, file_name=>$diff{'file'})},
1802                                        "history");
1803                        print "</td>\n";
1804
1805                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1806                        my %status_name = ('R' => 'moved', 'C' => 'copied');
1807                        my $nstatus = $status_name{$diff{'status'}};
1808                        my $mode_chng = "";
1809                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
1810                                # mode also for directories, so we cannot use $to_mode_str
1811                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1812                        }
1813                        print "<td>" .
1814                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1815                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1816                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1817                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1818                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1819                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1820                                      -class => "list"}, esc_html($diff{'from_file'})) .
1821                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1822                              "<td class=\"link\">" .
1823                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1824                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1825                                      "blob");
1826                        if ($diff{'to_id'} ne $diff{'from_id'}) {
1827                                if ($action eq 'commitdiff') {
1828                                        # link to patch
1829                                        $patchno++;
1830                                        print " | " .
1831                                                $cgi->a({-href => "#patch$patchno"}, "patch");
1832                                } else {
1833                                        print " | " .
1834                                                $cgi->a({-href => href(action=>"blobdiff",
1835                                                                       hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1836                                                                       hash_base=>$hash, hash_parent_base=>$parent,
1837                                                                       file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1838                                                        "diff");
1839                                }
1840                        }
1841                        print "</td>\n";
1842
1843                } # we should not encounter Unmerged (U) or Unknown (X) status
1844                print "</tr>\n";
1845        }
1846        print "</table>\n";
1847}
1848
1849sub git_patchset_body {
1850        my ($fd, $difftree, $hash, $hash_parent) = @_;
1851
1852        my $patch_idx = 0;
1853        my $in_header = 0;
1854        my $patch_found = 0;
1855        my $diffinfo;
1856
1857        print "<div class=\"patchset\">\n";
1858
1859        LINE:
1860        while (my $patch_line = <$fd>) {
1861                chomp $patch_line;
1862
1863                if ($patch_line =~ m/^diff /) { # "git diff" header
1864                        # beginning of patch (in patchset)
1865                        if ($patch_found) {
1866                                # close previous patch
1867                                print "</div>\n"; # class="patch"
1868                        } else {
1869                                # first patch in patchset
1870                                $patch_found = 1;
1871                        }
1872                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1873
1874                        if (ref($difftree->[$patch_idx]) eq "HASH") {
1875                                $diffinfo = $difftree->[$patch_idx];
1876                        } else {
1877                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1878                        }
1879                        $patch_idx++;
1880
1881                        # for now, no extended header, hence we skip empty patches
1882                        # companion to  next LINE if $in_header;
1883                        if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1884                                $in_header = 1;
1885                                next LINE;
1886                        }
1887
1888                        if ($diffinfo->{'status'} eq "A") { # added
1889                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1890                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1891                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1892                                              $diffinfo->{'to_id'}) . "(new)" .
1893                                      "</div>\n"; # class="diff_info"
1894
1895                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
1896                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1897                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1898                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1899                                              $diffinfo->{'from_id'}) . "(deleted)" .
1900                                      "</div>\n"; # class="diff_info"
1901
1902                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
1903                                 $diffinfo->{'status'} eq "C" || # copied
1904                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1905                                print "<div class=\"diff_info\">" .
1906                                      file_type($diffinfo->{'from_mode'}) . ":" .
1907                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1908                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1909                                              $diffinfo->{'from_id'}) .
1910                                      " -> " .
1911                                      file_type($diffinfo->{'to_mode'}) . ":" .
1912                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1913                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1914                                              $diffinfo->{'to_id'});
1915                                print "</div>\n"; # class="diff_info"
1916
1917                        } else { # modified, mode changed, ...
1918                                print "<div class=\"diff_info\">" .
1919                                      file_type($diffinfo->{'from_mode'}) . ":" .
1920                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1921                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1922                                              $diffinfo->{'from_id'}) .
1923                                      " -> " .
1924                                      file_type($diffinfo->{'to_mode'}) . ":" .
1925                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1926                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1927                                              $diffinfo->{'to_id'});
1928                                print "</div>\n"; # class="diff_info"
1929                        }
1930
1931                        #print "<div class=\"diff extended_header\">\n";
1932                        $in_header = 1;
1933                        next LINE;
1934                } # start of patch in patchset
1935
1936
1937                if ($in_header && $patch_line =~ m/^---/) {
1938                        #print "</div>\n"; # class="diff extended_header"
1939                        $in_header = 0;
1940
1941                        my $file = $diffinfo->{'from_file'};
1942                        $file  ||= $diffinfo->{'file'};
1943                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1944                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
1945                                        -class => "list"}, esc_html($file));
1946                        $patch_line =~ s|a/.*$|a/$file|g;
1947                        print "<div class=\"diff from_file\">$patch_line</div>\n";
1948
1949                        $patch_line = <$fd>;
1950                        chomp $patch_line;
1951
1952                        #$patch_line =~ m/^+++/;
1953                        $file    = $diffinfo->{'to_file'};
1954                        $file  ||= $diffinfo->{'file'};
1955                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1956                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
1957                                        -class => "list"}, esc_html($file));
1958                        $patch_line =~ s|b/.*|b/$file|g;
1959                        print "<div class=\"diff to_file\">$patch_line</div>\n";
1960
1961                        next LINE;
1962                }
1963                next LINE if $in_header;
1964
1965                print format_diff_line($patch_line);
1966        }
1967        print "</div>\n" if $patch_found; # class="patch"
1968
1969        print "</div>\n"; # class="patchset"
1970}
1971
1972# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1973
1974sub git_shortlog_body {
1975        # uses global variable $project
1976        my ($revlist, $from, $to, $refs, $extra) = @_;
1977
1978        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1979        my $have_snapshot = (defined $ctype && defined $suffix);
1980
1981        $from = 0 unless defined $from;
1982        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1983
1984        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1985        my $alternate = 0;
1986        for (my $i = $from; $i <= $to; $i++) {
1987                my $commit = $revlist->[$i];
1988                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1989                my $ref = format_ref_marker($refs, $commit);
1990                my %co = parse_commit($commit);
1991                if ($alternate) {
1992                        print "<tr class=\"dark\">\n";
1993                } else {
1994                        print "<tr class=\"light\">\n";
1995                }
1996                $alternate ^= 1;
1997                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1998                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1999                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2000                      "<td>";
2001                print format_subject_html($co{'title'}, $co{'title_short'},
2002                                          href(action=>"commit", hash=>$commit), $ref);
2003                print "</td>\n" .
2004                      "<td class=\"link\">" .
2005                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2006                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2007                if ($have_snapshot) {
2008                        print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2009                }
2010                print "</td>\n" .
2011                      "</tr>\n";
2012        }
2013        if (defined $extra) {
2014                print "<tr>\n" .
2015                      "<td colspan=\"4\">$extra</td>\n" .
2016                      "</tr>\n";
2017        }
2018        print "</table>\n";
2019}
2020
2021sub git_history_body {
2022        # Warning: assumes constant type (blob or tree) during history
2023        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2024
2025        $from = 0 unless defined $from;
2026        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2027
2028        print "<table class=\"history\" cellspacing=\"0\">\n";
2029        my $alternate = 0;
2030        for (my $i = $from; $i <= $to; $i++) {
2031                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2032                        next;
2033                }
2034
2035                my $commit = $1;
2036                my %co = parse_commit($commit);
2037                if (!%co) {
2038                        next;
2039                }
2040
2041                my $ref = format_ref_marker($refs, $commit);
2042
2043                if ($alternate) {
2044                        print "<tr class=\"dark\">\n";
2045                } else {
2046                        print "<tr class=\"light\">\n";
2047                }
2048                $alternate ^= 1;
2049                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2050                      # shortlog uses      chop_str($co{'author_name'}, 10)
2051                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2052                      "<td>";
2053                # originally git_history used chop_str($co{'title'}, 50)
2054                print format_subject_html($co{'title'}, $co{'title_short'},
2055                                          href(action=>"commit", hash=>$commit), $ref);
2056                print "</td>\n" .
2057                      "<td class=\"link\">" .
2058                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2059                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2060                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2061
2062                if ($ftype eq 'blob') {
2063                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2064                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2065                        if (defined $blob_current && defined $blob_parent &&
2066                                        $blob_current ne $blob_parent) {
2067                                print " | " .
2068                                        $cgi->a({-href => href(action=>"blobdiff",
2069                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2070                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2071                                                               file_name=>$file_name)},
2072                                                "diff to current");
2073                        }
2074                }
2075                print "</td>\n" .
2076                      "</tr>\n";
2077        }
2078        if (defined $extra) {
2079                print "<tr>\n" .
2080                      "<td colspan=\"4\">$extra</td>\n" .
2081                      "</tr>\n";
2082        }
2083        print "</table>\n";
2084}
2085
2086sub git_tags_body {
2087        # uses global variable $project
2088        my ($taglist, $from, $to, $extra) = @_;
2089        $from = 0 unless defined $from;
2090        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2091
2092        print "<table class=\"tags\" cellspacing=\"0\">\n";
2093        my $alternate = 0;
2094        for (my $i = $from; $i <= $to; $i++) {
2095                my $entry = $taglist->[$i];
2096                my %tag = %$entry;
2097                my $comment_lines = $tag{'comment'};
2098                my $comment = shift @$comment_lines;
2099                my $comment_short;
2100                if (defined $comment) {
2101                        $comment_short = chop_str($comment, 30, 5);
2102                }
2103                if ($alternate) {
2104                        print "<tr class=\"dark\">\n";
2105                } else {
2106                        print "<tr class=\"light\">\n";
2107                }
2108                $alternate ^= 1;
2109                print "<td><i>$tag{'age'}</i></td>\n" .
2110                      "<td>" .
2111                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2112                               -class => "list name"}, esc_html($tag{'name'})) .
2113                      "</td>\n" .
2114                      "<td>";
2115                if (defined $comment) {
2116                        print format_subject_html($comment, $comment_short,
2117                                                  href(action=>"tag", hash=>$tag{'id'}));
2118                }
2119                print "</td>\n" .
2120                      "<td class=\"selflink\">";
2121                if ($tag{'type'} eq "tag") {
2122                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2123                } else {
2124                        print "&nbsp;";
2125                }
2126                print "</td>\n" .
2127                      "<td class=\"link\">" . " | " .
2128                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2129                if ($tag{'reftype'} eq "commit") {
2130                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2131                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2132                } elsif ($tag{'reftype'} eq "blob") {
2133                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2134                }
2135                print "</td>\n" .
2136                      "</tr>";
2137        }
2138        if (defined $extra) {
2139                print "<tr>\n" .
2140                      "<td colspan=\"5\">$extra</td>\n" .
2141                      "</tr>\n";
2142        }
2143        print "</table>\n";
2144}
2145
2146sub git_heads_body {
2147        # uses global variable $project
2148        my ($headlist, $head, $from, $to, $extra) = @_;
2149        $from = 0 unless defined $from;
2150        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2151
2152        print "<table class=\"heads\" cellspacing=\"0\">\n";
2153        my $alternate = 0;
2154        for (my $i = $from; $i <= $to; $i++) {
2155                my $entry = $headlist->[$i];
2156                my %tag = %$entry;
2157                my $curr = $tag{'id'} eq $head;
2158                if ($alternate) {
2159                        print "<tr class=\"dark\">\n";
2160                } else {
2161                        print "<tr class=\"light\">\n";
2162                }
2163                $alternate ^= 1;
2164                print "<td><i>$tag{'age'}</i></td>\n" .
2165                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2166                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2167                               -class => "list name"},esc_html($tag{'name'})) .
2168                      "</td>\n" .
2169                      "<td class=\"link\">" .
2170                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2171                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2172                      "</td>\n" .
2173                      "</tr>";
2174        }
2175        if (defined $extra) {
2176                print "<tr>\n" .
2177                      "<td colspan=\"3\">$extra</td>\n" .
2178                      "</tr>\n";
2179        }
2180        print "</table>\n";
2181}
2182
2183## ======================================================================
2184## ======================================================================
2185## actions
2186
2187sub git_project_list {
2188        my $order = $cgi->param('o');
2189        if (defined $order && $order !~ m/project|descr|owner|age/) {
2190                die_error(undef, "Unknown order parameter");
2191        }
2192
2193        my @list = git_get_projects_list();
2194        my @projects;
2195        if (!@list) {
2196                die_error(undef, "No projects found");
2197        }
2198        foreach my $pr (@list) {
2199                my $head = git_get_head_hash($pr->{'path'});
2200                if (!defined $head) {
2201                        next;
2202                }
2203                $git_dir = "$projectroot/$pr->{'path'}";
2204                my %co = parse_commit($head);
2205                if (!%co) {
2206                        next;
2207                }
2208                $pr->{'commit'} = \%co;
2209                if (!defined $pr->{'descr'}) {
2210                        my $descr = git_get_project_description($pr->{'path'}) || "";
2211                        $pr->{'descr'} = chop_str($descr, 25, 5);
2212                }
2213                if (!defined $pr->{'owner'}) {
2214                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2215                }
2216                push @projects, $pr;
2217        }
2218
2219        git_header_html();
2220        if (-f $home_text) {
2221                print "<div class=\"index_include\">\n";
2222                open (my $fd, $home_text);
2223                print <$fd>;
2224                close $fd;
2225                print "</div>\n";
2226        }
2227        print "<table class=\"project_list\">\n" .
2228              "<tr>\n";
2229        $order ||= "project";
2230        if ($order eq "project") {
2231                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2232                print "<th>Project</th>\n";
2233        } else {
2234                print "<th>" .
2235                      $cgi->a({-href => href(project=>undef, order=>'project'),
2236                               -class => "header"}, "Project") .
2237                      "</th>\n";
2238        }
2239        if ($order eq "descr") {
2240                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2241                print "<th>Description</th>\n";
2242        } else {
2243                print "<th>" .
2244                      $cgi->a({-href => href(project=>undef, order=>'descr'),
2245                               -class => "header"}, "Description") .
2246                      "</th>\n";
2247        }
2248        if ($order eq "owner") {
2249                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2250                print "<th>Owner</th>\n";
2251        } else {
2252                print "<th>" .
2253                      $cgi->a({-href => href(project=>undef, order=>'owner'),
2254                               -class => "header"}, "Owner") .
2255                      "</th>\n";
2256        }
2257        if ($order eq "age") {
2258                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2259                print "<th>Last Change</th>\n";
2260        } else {
2261                print "<th>" .
2262                      $cgi->a({-href => href(project=>undef, order=>'age'),
2263                               -class => "header"}, "Last Change") .
2264                      "</th>\n";
2265        }
2266        print "<th></th>\n" .
2267              "</tr>\n";
2268        my $alternate = 0;
2269        foreach my $pr (@projects) {
2270                if ($alternate) {
2271                        print "<tr class=\"dark\">\n";
2272                } else {
2273                        print "<tr class=\"light\">\n";
2274                }
2275                $alternate ^= 1;
2276                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2277                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2278                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2279                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2280                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2281                      $pr->{'commit'}{'age_string'} . "</td>\n" .
2282                      "<td class=\"link\">" .
2283                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2284                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2285                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2286                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2287                      "</td>\n" .
2288                      "</tr>\n";
2289        }
2290        print "</table>\n";
2291        git_footer_html();
2292}
2293
2294sub git_project_index {
2295        my @projects = git_get_projects_list();
2296
2297        print $cgi->header(
2298                -type => 'text/plain',
2299                -charset => 'utf-8',
2300                -content_disposition => qq(inline; filename="index.aux"));
2301
2302        foreach my $pr (@projects) {
2303                if (!exists $pr->{'owner'}) {
2304                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2305                }
2306
2307                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2308                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2309                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2310                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2311                $path  =~ s/ /\+/g;
2312                $owner =~ s/ /\+/g;
2313
2314                print "$path $owner\n";
2315        }
2316}
2317
2318sub git_summary {
2319        my $descr = git_get_project_description($project) || "none";
2320        my $head = git_get_head_hash($project);
2321        my %co = parse_commit($head);
2322        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2323
2324        my $owner = git_get_project_owner($project);
2325
2326        my ($reflist, $refs) = git_get_refs_list();
2327
2328        my @taglist;
2329        my @headlist;
2330        foreach my $ref (@$reflist) {
2331                if ($ref->{'name'} =~ s!^heads/!!) {
2332                        push @headlist, $ref;
2333                } else {
2334                        $ref->{'name'} =~ s!^tags/!!;
2335                        push @taglist, $ref;
2336                }
2337        }
2338
2339        git_header_html();
2340        git_print_page_nav('summary','', $head);
2341
2342        print "<div class=\"title\">&nbsp;</div>\n";
2343        print "<table cellspacing=\"0\">\n" .
2344              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2345              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2346              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2347        # use per project git URL list in $projectroot/$project/cloneurl
2348        # or make project git URL from git base URL and project name
2349        my $url_tag = "URL";
2350        my @url_list = git_get_project_url_list($project);
2351        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2352        foreach my $git_url (@url_list) {
2353                next unless $git_url;
2354                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2355                $url_tag = "";
2356        }
2357        print "</table>\n";
2358
2359        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2360                git_get_head_hash($project)
2361                or die_error(undef, "Open git-rev-list failed");
2362        my @revlist = map { chomp; $_ } <$fd>;
2363        close $fd;
2364        git_print_header_div('shortlog');
2365        git_shortlog_body(\@revlist, 0, 15, $refs,
2366                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2367
2368        if (@taglist) {
2369                git_print_header_div('tags');
2370                git_tags_body(\@taglist, 0, 15,
2371                              $cgi->a({-href => href(action=>"tags")}, "..."));
2372        }
2373
2374        if (@headlist) {
2375                git_print_header_div('heads');
2376                git_heads_body(\@headlist, $head, 0, 15,
2377                               $cgi->a({-href => href(action=>"heads")}, "..."));
2378        }
2379
2380        git_footer_html();
2381}
2382
2383sub git_tag {
2384        my $head = git_get_head_hash($project);
2385        git_header_html();
2386        git_print_page_nav('','', $head,undef,$head);
2387        my %tag = parse_tag($hash);
2388        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2389        print "<div class=\"title_text\">\n" .
2390              "<table cellspacing=\"0\">\n" .
2391              "<tr>\n" .
2392              "<td>object</td>\n" .
2393              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2394                               $tag{'object'}) . "</td>\n" .
2395              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2396                                              $tag{'type'}) . "</td>\n" .
2397              "</tr>\n";
2398        if (defined($tag{'author'})) {
2399                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2400                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2401                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2402                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2403                        "</td></tr>\n";
2404        }
2405        print "</table>\n\n" .
2406              "</div>\n";
2407        print "<div class=\"page_body\">";
2408        my $comment = $tag{'comment'};
2409        foreach my $line (@$comment) {
2410                print esc_html($line) . "<br/>\n";
2411        }
2412        print "</div>\n";
2413        git_footer_html();
2414}
2415
2416sub git_blame2 {
2417        my $fd;
2418        my $ftype;
2419
2420        my ($have_blame) = gitweb_check_feature('blame');
2421        if (!$have_blame) {
2422                die_error('403 Permission denied', "Permission denied");
2423        }
2424        die_error('404 Not Found', "File name not defined") if (!$file_name);
2425        $hash_base ||= git_get_head_hash($project);
2426        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2427        my %co = parse_commit($hash_base)
2428                or die_error(undef, "Reading commit failed");
2429        if (!defined $hash) {
2430                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2431                        or die_error(undef, "Error looking up file");
2432        }
2433        $ftype = git_get_type($hash);
2434        if ($ftype !~ "blob") {
2435                die_error("400 Bad Request", "Object is not a blob");
2436        }
2437        open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2438                or die_error(undef, "Open git-blame failed");
2439        git_header_html();
2440        my $formats_nav =
2441                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2442                        "blob") .
2443                " | " .
2444                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2445                        "head");
2446        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2447        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2448        git_print_page_path($file_name, $ftype, $hash_base);
2449        my @rev_color = (qw(light2 dark2));
2450        my $num_colors = scalar(@rev_color);
2451        my $current_color = 0;
2452        my $last_rev;
2453        print <<HTML;
2454<div class="page_body">
2455<table class="blame">
2456<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2457HTML
2458        while (<$fd>) {
2459                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2460                my $full_rev = $1;
2461                my $rev = substr($full_rev, 0, 8);
2462                my $lineno = $2;
2463                my $data = $3;
2464
2465                if (!defined $last_rev) {
2466                        $last_rev = $full_rev;
2467                } elsif ($last_rev ne $full_rev) {
2468                        $last_rev = $full_rev;
2469                        $current_color = ++$current_color % $num_colors;
2470                }
2471                print "<tr class=\"$rev_color[$current_color]\">\n";
2472                print "<td class=\"sha1\">" .
2473                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2474                                esc_html($rev)) . "</td>\n";
2475                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2476                      esc_html($lineno) . "</a></td>\n";
2477                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2478                print "</tr>\n";
2479        }
2480        print "</table>\n";
2481        print "</div>";
2482        close $fd
2483                or print "Reading blob failed\n";
2484        git_footer_html();
2485}
2486
2487sub git_blame {
2488        my $fd;
2489
2490        my ($have_blame) = gitweb_check_feature('blame');
2491        if (!$have_blame) {
2492                die_error('403 Permission denied', "Permission denied");
2493        }
2494        die_error('404 Not Found', "File name not defined") if (!$file_name);
2495        $hash_base ||= git_get_head_hash($project);
2496        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2497        my %co = parse_commit($hash_base)
2498                or die_error(undef, "Reading commit failed");
2499        if (!defined $hash) {
2500                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2501                        or die_error(undef, "Error lookup file");
2502        }
2503        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2504                or die_error(undef, "Open git-annotate failed");
2505        git_header_html();
2506        my $formats_nav =
2507                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2508                        "blob") .
2509                " | " .
2510                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2511                        "head");
2512        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2513        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2514        git_print_page_path($file_name, 'blob', $hash_base);
2515        print "<div class=\"page_body\">\n";
2516        print <<HTML;
2517<table class="blame">
2518  <tr>
2519    <th>Commit</th>
2520    <th>Age</th>
2521    <th>Author</th>
2522    <th>Line</th>
2523    <th>Data</th>
2524  </tr>
2525HTML
2526        my @line_class = (qw(light dark));
2527        my $line_class_len = scalar (@line_class);
2528        my $line_class_num = $#line_class;
2529        while (my $line = <$fd>) {
2530                my $long_rev;
2531                my $short_rev;
2532                my $author;
2533                my $time;
2534                my $lineno;
2535                my $data;
2536                my $age;
2537                my $age_str;
2538                my $age_class;
2539
2540                chomp $line;
2541                $line_class_num = ($line_class_num + 1) % $line_class_len;
2542
2543                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2544                        $long_rev = $1;
2545                        $author   = $2;
2546                        $time     = $3;
2547                        $lineno   = $4;
2548                        $data     = $5;
2549                } else {
2550                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2551                        next;
2552                }
2553                $short_rev  = substr ($long_rev, 0, 8);
2554                $age        = time () - $time;
2555                $age_str    = age_string ($age);
2556                $age_str    =~ s/ /&nbsp;/g;
2557                $age_class  = age_class($age);
2558                $author     = esc_html ($author);
2559                $author     =~ s/ /&nbsp;/g;
2560
2561                $data = untabify($data);
2562                $data = esc_html ($data);
2563
2564                print <<HTML;
2565  <tr class="$line_class[$line_class_num]">
2566    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2567    <td class="$age_class">$age_str</td>
2568    <td>$author</td>
2569    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2570    <td class="pre">$data</td>
2571  </tr>
2572HTML
2573        } # while (my $line = <$fd>)
2574        print "</table>\n\n";
2575        close $fd
2576                or print "Reading blob failed.\n";
2577        print "</div>";
2578        git_footer_html();
2579}
2580
2581sub git_tags {
2582        my $head = git_get_head_hash($project);
2583        git_header_html();
2584        git_print_page_nav('','', $head,undef,$head);
2585        git_print_header_div('summary', $project);
2586
2587        my ($taglist) = git_get_refs_list("tags");
2588        if (@$taglist) {
2589                git_tags_body($taglist);
2590        }
2591        git_footer_html();
2592}
2593
2594sub git_heads {
2595        my $head = git_get_head_hash($project);
2596        git_header_html();
2597        git_print_page_nav('','', $head,undef,$head);
2598        git_print_header_div('summary', $project);
2599
2600        my ($headlist) = git_get_refs_list("heads");
2601        if (@$headlist) {
2602                git_heads_body($headlist, $head);
2603        }
2604        git_footer_html();
2605}
2606
2607sub git_blob_plain {
2608        my $expires;
2609
2610        if (!defined $hash) {
2611                if (defined $file_name) {
2612                        my $base = $hash_base || git_get_head_hash($project);
2613                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2614                                or die_error(undef, "Error lookup file");
2615                } else {
2616                        die_error(undef, "No file name defined");
2617                }
2618        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2619                # blobs defined by non-textual hash id's can be cached
2620                $expires = "+1d";
2621        }
2622
2623        my $type = shift;
2624        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2625                or die_error(undef, "Couldn't cat $file_name, $hash");
2626
2627        $type ||= blob_mimetype($fd, $file_name);
2628
2629        # save as filename, even when no $file_name is given
2630        my $save_as = "$hash";
2631        if (defined $file_name) {
2632                $save_as = $file_name;
2633        } elsif ($type =~ m/^text\//) {
2634                $save_as .= '.txt';
2635        }
2636
2637        print $cgi->header(
2638                -type => "$type",
2639                -expires=>$expires,
2640                -content_disposition => "inline; filename=\"$save_as\"");
2641        undef $/;
2642        binmode STDOUT, ':raw';
2643        print <$fd>;
2644        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2645        $/ = "\n";
2646        close $fd;
2647}
2648
2649sub git_blob {
2650        my $expires;
2651
2652        if (!defined $hash) {
2653                if (defined $file_name) {
2654                        my $base = $hash_base || git_get_head_hash($project);
2655                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2656                                or die_error(undef, "Error lookup file");
2657                } else {
2658                        die_error(undef, "No file name defined");
2659                }
2660        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2661                # blobs defined by non-textual hash id's can be cached
2662                $expires = "+1d";
2663        }
2664
2665        my ($have_blame) = gitweb_check_feature('blame');
2666        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2667                or die_error(undef, "Couldn't cat $file_name, $hash");
2668        my $mimetype = blob_mimetype($fd, $file_name);
2669        if ($mimetype !~ m/^text\//) {
2670                close $fd;
2671                return git_blob_plain($mimetype);
2672        }
2673        git_header_html(undef, $expires);
2674        my $formats_nav = '';
2675        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2676                if (defined $file_name) {
2677                        if ($have_blame) {
2678                                $formats_nav .=
2679                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2680                                                               hash=>$hash, file_name=>$file_name)},
2681                                                "blame") .
2682                                        " | ";
2683                        }
2684                        $formats_nav .=
2685                                $cgi->a({-href => href(action=>"blob_plain",
2686                                                       hash=>$hash, file_name=>$file_name)},
2687                                        "plain") .
2688                                " | " .
2689                                $cgi->a({-href => href(action=>"blob",
2690                                                       hash_base=>"HEAD", file_name=>$file_name)},
2691                                        "head");
2692                } else {
2693                        $formats_nav .=
2694                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2695                }
2696                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2697                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2698        } else {
2699                print "<div class=\"page_nav\">\n" .
2700                      "<br/><br/></div>\n" .
2701                      "<div class=\"title\">$hash</div>\n";
2702        }
2703        git_print_page_path($file_name, "blob", $hash_base);
2704        print "<div class=\"page_body\">\n";
2705        my $nr;
2706        while (my $line = <$fd>) {
2707                chomp $line;
2708                $nr++;
2709                $line = untabify($line);
2710                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2711                       $nr, $nr, $nr, esc_html($line);
2712        }
2713        close $fd
2714                or print "Reading blob failed.\n";
2715        print "</div>";
2716        git_footer_html();
2717}
2718
2719sub git_tree {
2720        if (!defined $hash) {
2721                $hash = git_get_head_hash($project);
2722                if (defined $file_name) {
2723                        my $base = $hash_base || $hash;
2724                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2725                }
2726                if (!defined $hash_base) {
2727                        $hash_base = $hash;
2728                }
2729        }
2730        $/ = "\0";
2731        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2732                or die_error(undef, "Open git-ls-tree failed");
2733        my @entries = map { chomp; $_ } <$fd>;
2734        close $fd or die_error(undef, "Reading tree failed");
2735        $/ = "\n";
2736
2737        my $refs = git_get_references();
2738        my $ref = format_ref_marker($refs, $hash_base);
2739        git_header_html();
2740        my $base = "";
2741        my ($have_blame) = gitweb_check_feature('blame');
2742        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2743                git_print_page_nav('tree','', $hash_base);
2744                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2745        } else {
2746                undef $hash_base;
2747                print "<div class=\"page_nav\">\n";
2748                print "<br/><br/></div>\n";
2749                print "<div class=\"title\">$hash</div>\n";
2750        }
2751        if (defined $file_name) {
2752                $base = esc_html("$file_name/");
2753        }
2754        git_print_page_path($file_name, 'tree', $hash_base);
2755        print "<div class=\"page_body\">\n";
2756        print "<table cellspacing=\"0\">\n";
2757        my $alternate = 0;
2758        foreach my $line (@entries) {
2759                my %t = parse_ls_tree_line($line, -z => 1);
2760
2761                if ($alternate) {
2762                        print "<tr class=\"dark\">\n";
2763                } else {
2764                        print "<tr class=\"light\">\n";
2765                }
2766                $alternate ^= 1;
2767
2768                git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2769
2770                print "</tr>\n";
2771        }
2772        print "</table>\n" .
2773              "</div>";
2774        git_footer_html();
2775}
2776
2777sub git_snapshot {
2778
2779        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2780        my $have_snapshot = (defined $ctype && defined $suffix);
2781        if (!$have_snapshot) {
2782                die_error('403 Permission denied', "Permission denied");
2783        }
2784
2785        if (!defined $hash) {
2786                $hash = git_get_head_hash($project);
2787        }
2788
2789        my $filename = basename($project) . "-$hash.tar.$suffix";
2790
2791        print $cgi->header(-type => 'application/x-tar',
2792                           -content_encoding => $ctype,
2793                           -content_disposition => "inline; filename=\"$filename\"",
2794                           -status => '200 OK');
2795
2796        my $git_command = git_cmd_str();
2797        open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2798                die_error(undef, "Execute git-tar-tree failed.");
2799        binmode STDOUT, ':raw';
2800        print <$fd>;
2801        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2802        close $fd;
2803
2804}
2805
2806sub git_log {
2807        my $head = git_get_head_hash($project);
2808        if (!defined $hash) {
2809                $hash = $head;
2810        }
2811        if (!defined $page) {
2812                $page = 0;
2813        }
2814        my $refs = git_get_references();
2815
2816        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2817        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2818                or die_error(undef, "Open git-rev-list failed");
2819        my @revlist = map { chomp; $_ } <$fd>;
2820        close $fd;
2821
2822        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2823
2824        git_header_html();
2825        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2826
2827        if (!@revlist) {
2828                my %co = parse_commit($hash);
2829
2830                git_print_header_div('summary', $project);
2831                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2832        }
2833        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2834                my $commit = $revlist[$i];
2835                my $ref = format_ref_marker($refs, $commit);
2836                my %co = parse_commit($commit);
2837                next if !%co;
2838                my %ad = parse_date($co{'author_epoch'});
2839                git_print_header_div('commit',
2840                               "<span class=\"age\">$co{'age_string'}</span>" .
2841                               esc_html($co{'title'}) . $ref,
2842                               $commit);
2843                print "<div class=\"title_text\">\n" .
2844                      "<div class=\"log_link\">\n" .
2845                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2846                      " | " .
2847                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2848                      "<br/>\n" .
2849                      "</div>\n" .
2850                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2851                      "</div>\n";
2852
2853                print "<div class=\"log_body\">\n";
2854                git_print_simplified_log($co{'comment'});
2855                print "</div>\n";
2856        }
2857        git_footer_html();
2858}
2859
2860sub git_commit {
2861        my %co = parse_commit($hash);
2862        if (!%co) {
2863                die_error(undef, "Unknown commit object");
2864        }
2865        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2866        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2867
2868        my $parent = $co{'parent'};
2869        if (!defined $parent) {
2870                $parent = "--root";
2871        }
2872        open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2873                or die_error(undef, "Open git-diff-tree failed");
2874        my @difftree = map { chomp; $_ } <$fd>;
2875        close $fd or die_error(undef, "Reading git-diff-tree failed");
2876
2877        # non-textual hash id's can be cached
2878        my $expires;
2879        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2880                $expires = "+1d";
2881        }
2882        my $refs = git_get_references();
2883        my $ref = format_ref_marker($refs, $co{'id'});
2884
2885        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2886        my $have_snapshot = (defined $ctype && defined $suffix);
2887
2888        my $formats_nav = '';
2889        if (defined $file_name && defined $co{'parent'}) {
2890                my $parent = $co{'parent'};
2891                $formats_nav .=
2892                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2893                                "blame");
2894        }
2895        git_header_html(undef, $expires);
2896        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2897                           $hash, $co{'tree'}, $hash,
2898                           $formats_nav);
2899
2900        if (defined $co{'parent'}) {
2901                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2902        } else {
2903                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2904        }
2905        print "<div class=\"title_text\">\n" .
2906              "<table cellspacing=\"0\">\n";
2907        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2908              "<tr>" .
2909              "<td></td><td> $ad{'rfc2822'}";
2910        if ($ad{'hour_local'} < 6) {
2911                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2912                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2913        } else {
2914                printf(" (%02d:%02d %s)",
2915                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2916        }
2917        print "</td>" .
2918              "</tr>\n";
2919        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2920        print "<tr><td></td><td> $cd{'rfc2822'}" .
2921              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2922              "</td></tr>\n";
2923        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2924        print "<tr>" .
2925              "<td>tree</td>" .
2926              "<td class=\"sha1\">" .
2927              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2928                       class => "list"}, $co{'tree'}) .
2929              "</td>" .
2930              "<td class=\"link\">" .
2931              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2932                      "tree");
2933        if ($have_snapshot) {
2934                print " | " .
2935                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2936        }
2937        print "</td>" .
2938              "</tr>\n";
2939        my $parents = $co{'parents'};
2940        foreach my $par (@$parents) {
2941                print "<tr>" .
2942                      "<td>parent</td>" .
2943                      "<td class=\"sha1\">" .
2944                      $cgi->a({-href => href(action=>"commit", hash=>$par),
2945                               class => "list"}, $par) .
2946                      "</td>" .
2947                      "<td class=\"link\">" .
2948                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2949                      " | " .
2950                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2951                      "</td>" .
2952                      "</tr>\n";
2953        }
2954        print "</table>".
2955              "</div>\n";
2956
2957        print "<div class=\"page_body\">\n";
2958        git_print_log($co{'comment'});
2959        print "</div>\n";
2960
2961        git_difftree_body(\@difftree, $hash, $parent);
2962
2963        git_footer_html();
2964}
2965
2966sub git_blobdiff {
2967        my $format = shift || 'html';
2968
2969        my $fd;
2970        my @difftree;
2971        my %diffinfo;
2972        my $expires;
2973
2974        # preparing $fd and %diffinfo for git_patchset_body
2975        # new style URI
2976        if (defined $hash_base && defined $hash_parent_base) {
2977                if (defined $file_name) {
2978                        # read raw output
2979                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2980                                "--", $file_name
2981                                or die_error(undef, "Open git-diff-tree failed");
2982                        @difftree = map { chomp; $_ } <$fd>;
2983                        close $fd
2984                                or die_error(undef, "Reading git-diff-tree failed");
2985                        @difftree
2986                                or die_error('404 Not Found', "Blob diff not found");
2987
2988                } elsif (defined $hash &&
2989                         $hash =~ /[0-9a-fA-F]{40}/) {
2990                        # try to find filename from $hash
2991
2992                        # read filtered raw output
2993                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2994                                or die_error(undef, "Open git-diff-tree failed");
2995                        @difftree =
2996                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2997                                # $hash == to_id
2998                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2999                                map { chomp; $_ } <$fd>;
3000                        close $fd
3001                                or die_error(undef, "Reading git-diff-tree failed");
3002                        @difftree
3003                                or die_error('404 Not Found', "Blob diff not found");
3004
3005                } else {
3006                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3007                }
3008
3009                if (@difftree > 1) {
3010                        die_error('404 Not Found', "Ambiguous blob diff specification");
3011                }
3012
3013                %diffinfo = parse_difftree_raw_line($difftree[0]);
3014                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3015                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3016
3017                $hash_parent ||= $diffinfo{'from_id'};
3018                $hash        ||= $diffinfo{'to_id'};
3019
3020                # non-textual hash id's can be cached
3021                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3022                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3023                        $expires = '+1d';
3024                }
3025
3026                # open patch output
3027                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3028                        '-p', $hash_parent_base, $hash_base,
3029                        "--", $file_name
3030                        or die_error(undef, "Open git-diff-tree failed");
3031        }
3032
3033        # old/legacy style URI
3034        if (!%diffinfo && # if new style URI failed
3035            defined $hash && defined $hash_parent) {
3036                # fake git-diff-tree raw output
3037                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3038                $diffinfo{'from_id'} = $hash_parent;
3039                $diffinfo{'to_id'}   = $hash;
3040                if (defined $file_name) {
3041                        if (defined $file_parent) {
3042                                $diffinfo{'status'} = '2';
3043                                $diffinfo{'from_file'} = $file_parent;
3044                                $diffinfo{'to_file'}   = $file_name;
3045                        } else { # assume not renamed
3046                                $diffinfo{'status'} = '1';
3047                                $diffinfo{'from_file'} = $file_name;
3048                                $diffinfo{'to_file'}   = $file_name;
3049                        }
3050                } else { # no filename given
3051                        $diffinfo{'status'} = '2';
3052                        $diffinfo{'from_file'} = $hash_parent;
3053                        $diffinfo{'to_file'}   = $hash;
3054                }
3055
3056                # non-textual hash id's can be cached
3057                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3058                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3059                        $expires = '+1d';
3060                }
3061
3062                # open patch output
3063                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3064                        or die_error(undef, "Open git-diff failed");
3065        } else  {
3066                die_error('404 Not Found', "Missing one of the blob diff parameters")
3067                        unless %diffinfo;
3068        }
3069
3070        # header
3071        if ($format eq 'html') {
3072                my $formats_nav =
3073                        $cgi->a({-href => href(action=>"blobdiff_plain",
3074                                               hash=>$hash, hash_parent=>$hash_parent,
3075                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3076                                               file_name=>$file_name, file_parent=>$file_parent)},
3077                                "plain");
3078                git_header_html(undef, $expires);
3079                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3080                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3081                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3082                } else {
3083                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3084                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3085                }
3086                if (defined $file_name) {
3087                        git_print_page_path($file_name, "blob", $hash_base);
3088                } else {
3089                        print "<div class=\"page_path\"></div>\n";
3090                }
3091
3092        } elsif ($format eq 'plain') {
3093                print $cgi->header(
3094                        -type => 'text/plain',
3095                        -charset => 'utf-8',
3096                        -expires => $expires,
3097                        -content_disposition => qq(inline; filename="${file_name}.patch"));
3098
3099                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3100
3101        } else {
3102                die_error(undef, "Unknown blobdiff format");
3103        }
3104
3105        # patch
3106        if ($format eq 'html') {
3107                print "<div class=\"page_body\">\n";
3108
3109                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3110                close $fd;
3111
3112                print "</div>\n"; # class="page_body"
3113                git_footer_html();
3114
3115        } else {
3116                while (my $line = <$fd>) {
3117                        $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3118                        $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3119
3120                        print $line;
3121
3122                        last if $line =~ m!^\+\+\+!;
3123                }
3124                local $/ = undef;
3125                print <$fd>;
3126                close $fd;
3127        }
3128}
3129
3130sub git_blobdiff_plain {
3131        git_blobdiff('plain');
3132}
3133
3134sub git_commitdiff {
3135        my $format = shift || 'html';
3136        my %co = parse_commit($hash);
3137        if (!%co) {
3138                die_error(undef, "Unknown commit object");
3139        }
3140        if (!defined $hash_parent) {
3141                $hash_parent = $co{'parent'} || '--root';
3142        }
3143
3144        # read commitdiff
3145        my $fd;
3146        my @difftree;
3147        if ($format eq 'html') {
3148                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3149                        "--patch-with-raw", "--full-index", $hash_parent, $hash
3150                        or die_error(undef, "Open git-diff-tree failed");
3151
3152                while (chomp(my $line = <$fd>)) {
3153                        # empty line ends raw part of diff-tree output
3154                        last unless $line;
3155                        push @difftree, $line;
3156                }
3157
3158        } elsif ($format eq 'plain') {
3159                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3160                        '-p', $hash_parent, $hash
3161                        or die_error(undef, "Open git-diff-tree failed");
3162
3163        } else {
3164                die_error(undef, "Unknown commitdiff format");
3165        }
3166
3167        # non-textual hash id's can be cached
3168        my $expires;
3169        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3170                $expires = "+1d";
3171        }
3172
3173        # write commit message
3174        if ($format eq 'html') {
3175                my $refs = git_get_references();
3176                my $ref = format_ref_marker($refs, $co{'id'});
3177                my $formats_nav =
3178                        $cgi->a({-href => href(action=>"commitdiff_plain",
3179                                               hash=>$hash, hash_parent=>$hash_parent)},
3180                                "plain");
3181
3182                git_header_html(undef, $expires);
3183                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3184                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3185                git_print_authorship(\%co);
3186                print "<div class=\"page_body\">\n";
3187                print "<div class=\"log\">\n";
3188                git_print_simplified_log($co{'comment'}, 1); # skip title
3189                print "</div>\n"; # class="log"
3190
3191        } elsif ($format eq 'plain') {
3192                my $refs = git_get_references("tags");
3193                my $tagname = git_get_rev_name_tags($hash);
3194                my $filename = basename($project) . "-$hash.patch";
3195
3196                print $cgi->header(
3197                        -type => 'text/plain',
3198                        -charset => 'utf-8',
3199                        -expires => $expires,
3200                        -content_disposition => qq(inline; filename="$filename"));
3201                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3202                print <<TEXT;
3203From: $co{'author'}
3204Date: $ad{'rfc2822'} ($ad{'tz_local'})
3205Subject: $co{'title'}
3206TEXT
3207                print "X-Git-Tag: $tagname\n" if $tagname;
3208                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3209
3210                foreach my $line (@{$co{'comment'}}) {
3211                        print "$line\n";
3212                }
3213                print "---\n\n";
3214        }
3215
3216        # write patch
3217        if ($format eq 'html') {
3218                git_difftree_body(\@difftree, $hash, $hash_parent);
3219                print "<br/>\n";
3220
3221                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3222                close $fd;
3223                print "</div>\n"; # class="page_body"
3224                git_footer_html();
3225
3226        } elsif ($format eq 'plain') {
3227                local $/ = undef;
3228                print <$fd>;
3229                close $fd
3230                        or print "Reading git-diff-tree failed\n";
3231        }
3232}
3233
3234sub git_commitdiff_plain {
3235        git_commitdiff('plain');
3236}
3237
3238sub git_history {
3239        if (!defined $hash_base) {
3240                $hash_base = git_get_head_hash($project);
3241        }
3242        if (!defined $page) {
3243                $page = 0;
3244        }
3245        my $ftype;
3246        my %co = parse_commit($hash_base);
3247        if (!%co) {
3248                die_error(undef, "Unknown commit object");
3249        }
3250
3251        my $refs = git_get_references();
3252        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3253
3254        if (!defined $hash && defined $file_name) {
3255                $hash = git_get_hash_by_path($hash_base, $file_name);
3256        }
3257        if (defined $hash) {
3258                $ftype = git_get_type($hash);
3259        }
3260
3261        open my $fd, "-|",
3262                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3263                        or die_error(undef, "Open git-rev-list-failed");
3264        my @revlist = map { chomp; $_ } <$fd>;
3265        close $fd
3266                or die_error(undef, "Reading git-rev-list failed");
3267
3268        my $paging_nav = '';
3269        if ($page > 0) {
3270                $paging_nav .=
3271                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3272                                               file_name=>$file_name)},
3273                                "first");
3274                $paging_nav .= " &sdot; " .
3275                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3276                                               file_name=>$file_name, page=>$page-1),
3277                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3278        } else {
3279                $paging_nav .= "first";
3280                $paging_nav .= " &sdot; prev";
3281        }
3282        if ($#revlist >= (100 * ($page+1)-1)) {
3283                $paging_nav .= " &sdot; " .
3284                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3285                                               file_name=>$file_name, page=>$page+1),
3286                                 -accesskey => "n", -title => "Alt-n"}, "next");
3287        } else {
3288                $paging_nav .= " &sdot; next";
3289        }
3290        my $next_link = '';
3291        if ($#revlist >= (100 * ($page+1)-1)) {
3292                $next_link =
3293                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3294                                               file_name=>$file_name, page=>$page+1),
3295                                 -title => "Alt-n"}, "next");
3296        }
3297
3298        git_header_html();
3299        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3300        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3301        git_print_page_path($file_name, $ftype, $hash_base);
3302
3303        git_history_body(\@revlist, ($page * 100), $#revlist,
3304                         $refs, $hash_base, $ftype, $next_link);
3305
3306        git_footer_html();
3307}
3308
3309sub git_search {
3310        if (!defined $searchtext) {
3311                die_error(undef, "Text field empty");
3312        }
3313        if (!defined $hash) {
3314                $hash = git_get_head_hash($project);
3315        }
3316        my %co = parse_commit($hash);
3317        if (!%co) {
3318                die_error(undef, "Unknown commit object");
3319        }
3320
3321        my $commit_search = 1;
3322        my $author_search = 0;
3323        my $committer_search = 0;
3324        my $pickaxe_search = 0;
3325        if ($searchtext =~ s/^author\\://i) {
3326                $author_search = 1;
3327        } elsif ($searchtext =~ s/^committer\\://i) {
3328                $committer_search = 1;
3329        } elsif ($searchtext =~ s/^pickaxe\\://i) {
3330                $commit_search = 0;
3331                $pickaxe_search = 1;
3332
3333                # pickaxe may take all resources of your box and run for several minutes
3334                # with every query - so decide by yourself how public you make this feature
3335                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3336                if (!$have_pickaxe) {
3337                        die_error('403 Permission denied', "Permission denied");
3338                }
3339        }
3340        git_header_html();
3341        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3342        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3343
3344        print "<table cellspacing=\"0\">\n";
3345        my $alternate = 0;
3346        if ($commit_search) {
3347                $/ = "\0";
3348                open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3349                while (my $commit_text = <$fd>) {
3350                        if (!grep m/$searchtext/i, $commit_text) {
3351                                next;
3352                        }
3353                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3354                                next;
3355                        }
3356                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3357                                next;
3358                        }
3359                        my @commit_lines = split "\n", $commit_text;
3360                        my %co = parse_commit(undef, \@commit_lines);
3361                        if (!%co) {
3362                                next;
3363                        }
3364                        if ($alternate) {
3365                                print "<tr class=\"dark\">\n";
3366                        } else {
3367                                print "<tr class=\"light\">\n";
3368                        }
3369                        $alternate ^= 1;
3370                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3371                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3372                              "<td>" .
3373                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3374                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3375                        my $comment = $co{'comment'};
3376                        foreach my $line (@$comment) {
3377                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3378                                        my $lead = esc_html($1) || "";
3379                                        $lead = chop_str($lead, 30, 10);
3380                                        my $match = esc_html($2) || "";
3381                                        my $trail = esc_html($3) || "";
3382                                        $trail = chop_str($trail, 30, 10);
3383                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3384                                        print chop_str($text, 80, 5) . "<br/>\n";
3385                                }
3386                        }
3387                        print "</td>\n" .
3388                              "<td class=\"link\">" .
3389                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3390                              " | " .
3391                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3392                        print "</td>\n" .
3393                              "</tr>\n";
3394                }
3395                close $fd;
3396        }
3397
3398        if ($pickaxe_search) {
3399                $/ = "\n";
3400                my $git_command = git_cmd_str();
3401                open my $fd, "-|", "$git_command rev-list $hash | " .
3402                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3403                undef %co;
3404                my @files;
3405                while (my $line = <$fd>) {
3406                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3407                                my %set;
3408                                $set{'file'} = $6;
3409                                $set{'from_id'} = $3;
3410                                $set{'to_id'} = $4;
3411                                $set{'id'} = $set{'to_id'};
3412                                if ($set{'id'} =~ m/0{40}/) {
3413                                        $set{'id'} = $set{'from_id'};
3414                                }
3415                                if ($set{'id'} =~ m/0{40}/) {
3416                                        next;
3417                                }
3418                                push @files, \%set;
3419                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3420                                if (%co) {
3421                                        if ($alternate) {
3422                                                print "<tr class=\"dark\">\n";
3423                                        } else {
3424                                                print "<tr class=\"light\">\n";
3425                                        }
3426                                        $alternate ^= 1;
3427                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3428                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3429                                              "<td>" .
3430                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3431                                                      -class => "list subject"},
3432                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3433                                        while (my $setref = shift @files) {
3434                                                my %set = %$setref;
3435                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3436                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3437                                                              -class => "list"},
3438                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3439                                                      "<br/>\n";
3440                                        }
3441                                        print "</td>\n" .
3442                                              "<td class=\"link\">" .
3443                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3444                                              " | " .
3445                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3446                                        print "</td>\n" .
3447                                              "</tr>\n";
3448                                }
3449                                %co = parse_commit($1);
3450                        }
3451                }
3452                close $fd;
3453        }
3454        print "</table>\n";
3455        git_footer_html();
3456}
3457
3458sub git_shortlog {
3459        my $head = git_get_head_hash($project);
3460        if (!defined $hash) {
3461                $hash = $head;
3462        }
3463        if (!defined $page) {
3464                $page = 0;
3465        }
3466        my $refs = git_get_references();
3467
3468        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3469        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3470                or die_error(undef, "Open git-rev-list failed");
3471        my @revlist = map { chomp; $_ } <$fd>;
3472        close $fd;
3473
3474        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3475        my $next_link = '';
3476        if ($#revlist >= (100 * ($page+1)-1)) {
3477                $next_link =
3478                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3479                                 -title => "Alt-n"}, "next");
3480        }
3481
3482
3483        git_header_html();
3484        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3485        git_print_header_div('summary', $project);
3486
3487        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3488
3489        git_footer_html();
3490}
3491
3492## ......................................................................
3493## feeds (RSS, OPML)
3494
3495sub git_rss {
3496        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3497        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3498                or die_error(undef, "Open git-rev-list failed");
3499        my @revlist = map { chomp; $_ } <$fd>;
3500        close $fd or die_error(undef, "Reading git-rev-list failed");
3501        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3502        print <<XML;
3503<?xml version="1.0" encoding="utf-8"?>
3504<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3505<channel>
3506<title>$project $my_uri $my_url</title>
3507<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3508<description>$project log</description>
3509<language>en</language>
3510XML
3511
3512        for (my $i = 0; $i <= $#revlist; $i++) {
3513                my $commit = $revlist[$i];
3514                my %co = parse_commit($commit);
3515                # we read 150, we always show 30 and the ones more recent than 48 hours
3516                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3517                        last;
3518                }
3519                my %cd = parse_date($co{'committer_epoch'});
3520                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3521                        $co{'parent'}, $co{'id'}
3522                        or next;
3523                my @difftree = map { chomp; $_ } <$fd>;
3524                close $fd
3525                        or next;
3526                print "<item>\n" .
3527                      "<title>" .
3528                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3529                      "</title>\n" .
3530                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3531                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3532                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3533                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3534                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3535                      "<content:encoded>" .
3536                      "<![CDATA[\n";
3537                my $comment = $co{'comment'};
3538                foreach my $line (@$comment) {
3539                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
3540                        print "$line<br/>\n";
3541                }
3542                print "<br/>\n";
3543                foreach my $line (@difftree) {
3544                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3545                                next;
3546                        }
3547                        my $file = validate_input(unquote($7));
3548                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
3549                        print "$file<br/>\n";
3550                }
3551                print "]]>\n" .
3552                      "</content:encoded>\n" .
3553                      "</item>\n";
3554        }
3555        print "</channel></rss>";
3556}
3557
3558sub git_opml {
3559        my @list = git_get_projects_list();
3560
3561        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3562        print <<XML;
3563<?xml version="1.0" encoding="utf-8"?>
3564<opml version="1.0">
3565<head>
3566  <title>$site_name Git OPML Export</title>
3567</head>
3568<body>
3569<outline text="git RSS feeds">
3570XML
3571
3572        foreach my $pr (@list) {
3573                my %proj = %$pr;
3574                my $head = git_get_head_hash($proj{'path'});
3575                if (!defined $head) {
3576                        next;
3577                }
3578                $git_dir = "$projectroot/$proj{'path'}";
3579                my %co = parse_commit($head);
3580                if (!%co) {
3581                        next;
3582                }
3583
3584                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3585                my $rss  = "$my_url?p=$proj{'path'};a=rss";
3586                my $html = "$my_url?p=$proj{'path'};a=summary";
3587                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3588        }
3589        print <<XML;
3590</outline>
3591</body>
3592</opml>
3593XML
3594}