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

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'blame'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "search" => \&git_search,
 429        "search_help" => \&git_search_help,
 430        "shortlog" => \&git_shortlog,
 431        "summary" => \&git_summary,
 432        "tag" => \&git_tag,
 433        "tags" => \&git_tags,
 434        "tree" => \&git_tree,
 435        "snapshot" => \&git_snapshot,
 436        # those below don't need $project
 437        "opml" => \&git_opml,
 438        "project_list" => \&git_project_list,
 439        "project_index" => \&git_project_index,
 440);
 441
 442if (defined $project) {
 443        $action ||= 'summary';
 444} else {
 445        $action ||= 'project_list';
 446}
 447if (!defined($actions{$action})) {
 448        die_error(undef, "Unknown action");
 449}
 450if ($action !~ m/^(opml|project_list|project_index)$/ &&
 451    !$project) {
 452        die_error(undef, "Project needed");
 453}
 454$actions{$action}->();
 455exit;
 456
 457## ======================================================================
 458## action links
 459
 460sub href(%) {
 461        my %params = @_;
 462        my $href = $my_uri;
 463
 464        # XXX: Warning: If you touch this, check the search form for updating,
 465        # too.
 466
 467        my @mapping = (
 468                project => "p",
 469                action => "a",
 470                file_name => "f",
 471                file_parent => "fp",
 472                hash => "h",
 473                hash_parent => "hp",
 474                hash_base => "hb",
 475                hash_parent_base => "hpb",
 476                page => "pg",
 477                order => "o",
 478                searchtext => "s",
 479                searchtype => "st",
 480        );
 481        my %mapping = @mapping;
 482
 483        $params{'project'} = $project unless exists $params{'project'};
 484
 485        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 486        if ($use_pathinfo) {
 487                # use PATH_INFO for project name
 488                $href .= "/$params{'project'}" if defined $params{'project'};
 489                delete $params{'project'};
 490
 491                # Summary just uses the project path URL
 492                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 493                        delete $params{'action'};
 494                }
 495        }
 496
 497        # now encode the parameters explicitly
 498        my @result = ();
 499        for (my $i = 0; $i < @mapping; $i += 2) {
 500                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 501                if (defined $params{$name}) {
 502                        push @result, $symbol . "=" . esc_param($params{$name});
 503                }
 504        }
 505        $href .= "?" . join(';', @result) if scalar @result;
 506
 507        return $href;
 508}
 509
 510
 511## ======================================================================
 512## validation, quoting/unquoting and escaping
 513
 514sub validate_pathname {
 515        my $input = shift || return undef;
 516
 517        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 518        # at the beginning, at the end, and between slashes.
 519        # also this catches doubled slashes
 520        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 521                return undef;
 522        }
 523        # no null characters
 524        if ($input =~ m!\0!) {
 525                return undef;
 526        }
 527        return $input;
 528}
 529
 530sub validate_refname {
 531        my $input = shift || return undef;
 532
 533        # textual hashes are O.K.
 534        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 535                return $input;
 536        }
 537        # it must be correct pathname
 538        $input = validate_pathname($input)
 539                or return undef;
 540        # restrictions on ref name according to git-check-ref-format
 541        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 542                return undef;
 543        }
 544        return $input;
 545}
 546
 547# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 548sub to_utf8 {
 549        my $str = shift;
 550        return decode("utf8", $str, Encode::FB_DEFAULT);
 551}
 552
 553# quote unsafe chars, but keep the slash, even when it's not
 554# correct, but quoted slashes look too horrible in bookmarks
 555sub esc_param {
 556        my $str = shift;
 557        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 558        $str =~ s/\+/%2B/g;
 559        $str =~ s/ /\+/g;
 560        return $str;
 561}
 562
 563# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 564sub esc_url {
 565        my $str = shift;
 566        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 567        $str =~ s/\+/%2B/g;
 568        $str =~ s/ /\+/g;
 569        return $str;
 570}
 571
 572# replace invalid utf8 character with SUBSTITUTION sequence
 573sub esc_html ($;%) {
 574        my $str = shift;
 575        my %opts = @_;
 576
 577        $str = to_utf8($str);
 578        $str = escapeHTML($str);
 579        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 580        $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 581        if ($opts{'-nbsp'}) {
 582                $str =~ s/ /&nbsp;/g;
 583        }
 584        return $str;
 585}
 586
 587# Make control characterss "printable".
 588sub quot_cec {
 589        my $cntrl = shift;
 590        my %es = ( # character escape codes, aka escape sequences
 591                   "\t" => '\t',   # tab            (HT)
 592                   "\n" => '\n',   # line feed      (LF)
 593                   "\r" => '\r',   # carrige return (CR)
 594                   "\f" => '\f',   # form feed      (FF)
 595                   "\b" => '\b',   # backspace      (BS)
 596                   "\a" => '\a',   # alarm (bell)   (BEL)
 597                   "\e" => '\e',   # escape         (ESC)
 598                   "\013" => '\v', # vertical tab   (VT)
 599                   "\000" => '\0', # nul character  (NUL)
 600                   );
 601        my $chr = ( (exists $es{$cntrl})
 602                    ? $es{$cntrl}
 603                    : sprintf('\%03o', ord($cntrl)) );
 604        return "<span class=\"cntrl\">$chr</span>";
 605}
 606
 607# Alternatively use unicode control pictures codepoints.
 608sub quot_upr {
 609        my $cntrl = shift;
 610        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 611        return "<span class=\"cntrl\">$chr</span>";
 612}
 613
 614# quote control characters and escape filename to HTML
 615sub esc_path {
 616        my $str = shift;
 617
 618        $str = esc_html($str);
 619        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 620        return $str;
 621}
 622
 623# git may return quoted and escaped filenames
 624sub unquote {
 625        my $str = shift;
 626
 627        sub unq {
 628                my $seq = shift;
 629                my %es = ( # character escape codes, aka escape sequences
 630                        't' => "\t",   # tab            (HT, TAB)
 631                        'n' => "\n",   # newline        (NL)
 632                        'r' => "\r",   # return         (CR)
 633                        'f' => "\f",   # form feed      (FF)
 634                        'b' => "\b",   # backspace      (BS)
 635                        'a' => "\a",   # alarm (bell)   (BEL)
 636                        'e' => "\e",   # escape         (ESC)
 637                        'v' => "\013", # vertical tab   (VT)
 638                );
 639
 640                if ($seq =~ m/^[0-7]{1,3}$/) {
 641                        # octal char sequence
 642                        return chr(oct($seq));
 643                } elsif (exists $es{$seq}) {
 644                        # C escape sequence, aka character escape code
 645                        return $es{$seq}
 646                }
 647                # quoted ordinary character
 648                return $seq;
 649        }
 650
 651        if ($str =~ m/^"(.*)"$/) {
 652                # needs unquoting
 653                $str = $1;
 654                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 655        }
 656        return $str;
 657}
 658
 659# escape tabs (convert tabs to spaces)
 660sub untabify {
 661        my $line = shift;
 662
 663        while ((my $pos = index($line, "\t")) != -1) {
 664                if (my $count = (8 - ($pos % 8))) {
 665                        my $spaces = ' ' x $count;
 666                        $line =~ s/\t/$spaces/;
 667                }
 668        }
 669
 670        return $line;
 671}
 672
 673sub project_in_list {
 674        my $project = shift;
 675        my @list = git_get_projects_list();
 676        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 677}
 678
 679## ----------------------------------------------------------------------
 680## HTML aware string manipulation
 681
 682sub chop_str {
 683        my $str = shift;
 684        my $len = shift;
 685        my $add_len = shift || 10;
 686
 687        # allow only $len chars, but don't cut a word if it would fit in $add_len
 688        # if it doesn't fit, cut it if it's still longer than the dots we would add
 689        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 690        my $body = $1;
 691        my $tail = $2;
 692        if (length($tail) > 4) {
 693                $tail = " ...";
 694                $body =~ s/&[^;]*$//; # remove chopped character entities
 695        }
 696        return "$body$tail";
 697}
 698
 699## ----------------------------------------------------------------------
 700## functions returning short strings
 701
 702# CSS class for given age value (in seconds)
 703sub age_class {
 704        my $age = shift;
 705
 706        if ($age < 60*60*2) {
 707                return "age0";
 708        } elsif ($age < 60*60*24*2) {
 709                return "age1";
 710        } else {
 711                return "age2";
 712        }
 713}
 714
 715# convert age in seconds to "nn units ago" string
 716sub age_string {
 717        my $age = shift;
 718        my $age_str;
 719
 720        if ($age > 60*60*24*365*2) {
 721                $age_str = (int $age/60/60/24/365);
 722                $age_str .= " years ago";
 723        } elsif ($age > 60*60*24*(365/12)*2) {
 724                $age_str = int $age/60/60/24/(365/12);
 725                $age_str .= " months ago";
 726        } elsif ($age > 60*60*24*7*2) {
 727                $age_str = int $age/60/60/24/7;
 728                $age_str .= " weeks ago";
 729        } elsif ($age > 60*60*24*2) {
 730                $age_str = int $age/60/60/24;
 731                $age_str .= " days ago";
 732        } elsif ($age > 60*60*2) {
 733                $age_str = int $age/60/60;
 734                $age_str .= " hours ago";
 735        } elsif ($age > 60*2) {
 736                $age_str = int $age/60;
 737                $age_str .= " min ago";
 738        } elsif ($age > 2) {
 739                $age_str = int $age;
 740                $age_str .= " sec ago";
 741        } else {
 742                $age_str .= " right now";
 743        }
 744        return $age_str;
 745}
 746
 747# convert file mode in octal to symbolic file mode string
 748sub mode_str {
 749        my $mode = oct shift;
 750
 751        if (S_ISDIR($mode & S_IFMT)) {
 752                return 'drwxr-xr-x';
 753        } elsif (S_ISLNK($mode)) {
 754                return 'lrwxrwxrwx';
 755        } elsif (S_ISREG($mode)) {
 756                # git cares only about the executable bit
 757                if ($mode & S_IXUSR) {
 758                        return '-rwxr-xr-x';
 759                } else {
 760                        return '-rw-r--r--';
 761                };
 762        } else {
 763                return '----------';
 764        }
 765}
 766
 767# convert file mode in octal to file type string
 768sub file_type {
 769        my $mode = shift;
 770
 771        if ($mode !~ m/^[0-7]+$/) {
 772                return $mode;
 773        } else {
 774                $mode = oct $mode;
 775        }
 776
 777        if (S_ISDIR($mode & S_IFMT)) {
 778                return "directory";
 779        } elsif (S_ISLNK($mode)) {
 780                return "symlink";
 781        } elsif (S_ISREG($mode)) {
 782                return "file";
 783        } else {
 784                return "unknown";
 785        }
 786}
 787
 788# convert file mode in octal to file type description string
 789sub file_type_long {
 790        my $mode = shift;
 791
 792        if ($mode !~ m/^[0-7]+$/) {
 793                return $mode;
 794        } else {
 795                $mode = oct $mode;
 796        }
 797
 798        if (S_ISDIR($mode & S_IFMT)) {
 799                return "directory";
 800        } elsif (S_ISLNK($mode)) {
 801                return "symlink";
 802        } elsif (S_ISREG($mode)) {
 803                if ($mode & S_IXUSR) {
 804                        return "executable";
 805                } else {
 806                        return "file";
 807                };
 808        } else {
 809                return "unknown";
 810        }
 811}
 812
 813
 814## ----------------------------------------------------------------------
 815## functions returning short HTML fragments, or transforming HTML fragments
 816## which don't beling to other sections
 817
 818# format line of commit message or tag comment
 819sub format_log_line_html {
 820        my $line = shift;
 821
 822        $line = esc_html($line);
 823        $line =~ s/ /&nbsp;/g;
 824        if ($line =~ m/([0-9a-fA-F]{40})/) {
 825                my $hash_text = $1;
 826                if (git_get_type($hash_text) eq "commit") {
 827                        my $link =
 828                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 829                                        -class => "text"}, $hash_text);
 830                        $line =~ s/$hash_text/$link/;
 831                }
 832        }
 833        return $line;
 834}
 835
 836# format marker of refs pointing to given object
 837sub format_ref_marker {
 838        my ($refs, $id) = @_;
 839        my $markers = '';
 840
 841        if (defined $refs->{$id}) {
 842                foreach my $ref (@{$refs->{$id}}) {
 843                        my ($type, $name) = qw();
 844                        # e.g. tags/v2.6.11 or heads/next
 845                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 846                                $type = $1;
 847                                $name = $2;
 848                        } else {
 849                                $type = "ref";
 850                                $name = $ref;
 851                        }
 852
 853                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 854                }
 855        }
 856
 857        if ($markers) {
 858                return ' <span class="refs">'. $markers . '</span>';
 859        } else {
 860                return "";
 861        }
 862}
 863
 864# format, perhaps shortened and with markers, title line
 865sub format_subject_html {
 866        my ($long, $short, $href, $extra) = @_;
 867        $extra = '' unless defined($extra);
 868
 869        if (length($short) < length($long)) {
 870                return $cgi->a({-href => $href, -class => "list subject",
 871                                -title => to_utf8($long)},
 872                       esc_html($short) . $extra);
 873        } else {
 874                return $cgi->a({-href => $href, -class => "list subject"},
 875                       esc_html($long)  . $extra);
 876        }
 877}
 878
 879sub format_diff_line {
 880        my $line = shift;
 881        my $char = substr($line, 0, 1);
 882        my $diff_class = "";
 883
 884        chomp $line;
 885
 886        if ($char eq '+') {
 887                $diff_class = " add";
 888        } elsif ($char eq "-") {
 889                $diff_class = " rem";
 890        } elsif ($char eq "@") {
 891                $diff_class = " chunk_header";
 892        } elsif ($char eq "\\") {
 893                $diff_class = " incomplete";
 894        }
 895        $line = untabify($line);
 896        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 897}
 898
 899## ----------------------------------------------------------------------
 900## git utility subroutines, invoking git commands
 901
 902# returns path to the core git executable and the --git-dir parameter as list
 903sub git_cmd {
 904        return $GIT, '--git-dir='.$git_dir;
 905}
 906
 907# returns path to the core git executable and the --git-dir parameter as string
 908sub git_cmd_str {
 909        return join(' ', git_cmd());
 910}
 911
 912# get HEAD ref of given project as hash
 913sub git_get_head_hash {
 914        my $project = shift;
 915        my $o_git_dir = $git_dir;
 916        my $retval = undef;
 917        $git_dir = "$projectroot/$project";
 918        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 919                my $head = <$fd>;
 920                close $fd;
 921                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 922                        $retval = $1;
 923                }
 924        }
 925        if (defined $o_git_dir) {
 926                $git_dir = $o_git_dir;
 927        }
 928        return $retval;
 929}
 930
 931# get type of given object
 932sub git_get_type {
 933        my $hash = shift;
 934
 935        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 936        my $type = <$fd>;
 937        close $fd or return;
 938        chomp $type;
 939        return $type;
 940}
 941
 942sub git_get_project_config {
 943        my ($key, $type) = @_;
 944
 945        return unless ($key);
 946        $key =~ s/^gitweb\.//;
 947        return if ($key =~ m/\W/);
 948
 949        my @x = (git_cmd(), 'repo-config');
 950        if (defined $type) { push @x, $type; }
 951        push @x, "--get";
 952        push @x, "gitweb.$key";
 953        my $val = qx(@x);
 954        chomp $val;
 955        return ($val);
 956}
 957
 958# get hash of given path at given ref
 959sub git_get_hash_by_path {
 960        my $base = shift;
 961        my $path = shift || return undef;
 962        my $type = shift;
 963
 964        $path =~ s,/+$,,;
 965
 966        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 967                or die_error(undef, "Open git-ls-tree failed");
 968        my $line = <$fd>;
 969        close $fd or return undef;
 970
 971        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 972        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 973        if (defined $type && $type ne $2) {
 974                # type doesn't match
 975                return undef;
 976        }
 977        return $3;
 978}
 979
 980## ......................................................................
 981## git utility functions, directly accessing git repository
 982
 983sub git_get_project_description {
 984        my $path = shift;
 985
 986        open my $fd, "$projectroot/$path/description" or return undef;
 987        my $descr = <$fd>;
 988        close $fd;
 989        chomp $descr;
 990        return $descr;
 991}
 992
 993sub git_get_project_url_list {
 994        my $path = shift;
 995
 996        open my $fd, "$projectroot/$path/cloneurl" or return;
 997        my @git_project_url_list = map { chomp; $_ } <$fd>;
 998        close $fd;
 999
1000        return wantarray ? @git_project_url_list : \@git_project_url_list;
1001}
1002
1003sub git_get_projects_list {
1004        my ($filter) = @_;
1005        my @list;
1006
1007        $filter ||= '';
1008        $filter =~ s/\.git$//;
1009
1010        if (-d $projects_list) {
1011                # search in directory
1012                my $dir = $projects_list . ($filter ? "/$filter" : '');
1013                # remove the trailing "/"
1014                $dir =~ s!/+$!!;
1015                my $pfxlen = length("$dir");
1016
1017                my ($check_forks) = gitweb_check_feature('forks');
1018
1019                File::Find::find({
1020                        follow_fast => 1, # follow symbolic links
1021                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1022                        wanted => sub {
1023                                # skip project-list toplevel, if we get it.
1024                                return if (m!^[/.]$!);
1025                                # only directories can be git repositories
1026                                return unless (-d $_);
1027
1028                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1029                                # we check related file in $projectroot
1030                                if ($check_forks and $subdir =~ m#/.#) {
1031                                        $File::Find::prune = 1;
1032                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1033                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1034                                        $File::Find::prune = 1;
1035                                }
1036                        },
1037                }, "$dir");
1038
1039        } elsif (-f $projects_list) {
1040                # read from file(url-encoded):
1041                # 'git%2Fgit.git Linus+Torvalds'
1042                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1043                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1044                open my ($fd), $projects_list or return;
1045                while (my $line = <$fd>) {
1046                        chomp $line;
1047                        my ($path, $owner) = split ' ', $line;
1048                        $path = unescape($path);
1049                        $owner = unescape($owner);
1050                        if (!defined $path) {
1051                                next;
1052                        }
1053                        if ($filter ne '') {
1054                                # looking for forks;
1055                                my $pfx = substr($path, 0, length($filter));
1056                                if ($pfx ne $filter) {
1057                                        next;
1058                                }
1059                                my $sfx = substr($path, length($filter));
1060                                if ($sfx !~ /^\/.*\.git$/) {
1061                                        next;
1062                                }
1063                        }
1064                        if (check_export_ok("$projectroot/$path")) {
1065                                my $pr = {
1066                                        path => $path,
1067                                        owner => to_utf8($owner),
1068                                };
1069                                push @list, $pr
1070                        }
1071                }
1072                close $fd;
1073        }
1074        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1075        return @list;
1076}
1077
1078sub git_get_project_owner {
1079        my $project = shift;
1080        my $owner;
1081
1082        return undef unless $project;
1083
1084        # read from file (url-encoded):
1085        # 'git%2Fgit.git Linus+Torvalds'
1086        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1087        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1088        if (-f $projects_list) {
1089                open (my $fd , $projects_list);
1090                while (my $line = <$fd>) {
1091                        chomp $line;
1092                        my ($pr, $ow) = split ' ', $line;
1093                        $pr = unescape($pr);
1094                        $ow = unescape($ow);
1095                        if ($pr eq $project) {
1096                                $owner = to_utf8($ow);
1097                                last;
1098                        }
1099                }
1100                close $fd;
1101        }
1102        if (!defined $owner) {
1103                $owner = get_file_owner("$projectroot/$project");
1104        }
1105
1106        return $owner;
1107}
1108
1109sub git_get_last_activity {
1110        my ($path) = @_;
1111        my $fd;
1112
1113        $git_dir = "$projectroot/$path";
1114        open($fd, "-|", git_cmd(), 'for-each-ref',
1115             '--format=%(refname) %(committer)',
1116             '--sort=-committerdate',
1117             'refs/heads') or return;
1118        my $most_recent = <$fd>;
1119        close $fd or return;
1120        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1121                my $timestamp = $1;
1122                my $age = time - $timestamp;
1123                return ($age, age_string($age));
1124        }
1125}
1126
1127sub git_get_references {
1128        my $type = shift || "";
1129        my %refs;
1130        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1131        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1132        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1133                or return;
1134
1135        while (my $line = <$fd>) {
1136                chomp $line;
1137                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1138                        if (defined $refs{$1}) {
1139                                push @{$refs{$1}}, $2;
1140                        } else {
1141                                $refs{$1} = [ $2 ];
1142                        }
1143                }
1144        }
1145        close $fd or return;
1146        return \%refs;
1147}
1148
1149sub git_get_rev_name_tags {
1150        my $hash = shift || return undef;
1151
1152        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1153                or return;
1154        my $name_rev = <$fd>;
1155        close $fd;
1156
1157        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1158                return $1;
1159        } else {
1160                # catches also '$hash undefined' output
1161                return undef;
1162        }
1163}
1164
1165## ----------------------------------------------------------------------
1166## parse to hash functions
1167
1168sub parse_date {
1169        my $epoch = shift;
1170        my $tz = shift || "-0000";
1171
1172        my %date;
1173        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1174        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1175        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1176        $date{'hour'} = $hour;
1177        $date{'minute'} = $min;
1178        $date{'mday'} = $mday;
1179        $date{'day'} = $days[$wday];
1180        $date{'month'} = $months[$mon];
1181        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1182                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1183        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1184                             $mday, $months[$mon], $hour ,$min;
1185
1186        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1187        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1188        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1189        $date{'hour_local'} = $hour;
1190        $date{'minute_local'} = $min;
1191        $date{'tz_local'} = $tz;
1192        $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1193                                   1900+$year, $mon+1, $mday,
1194                                   $hour, $min, $sec, $tz);
1195        return %date;
1196}
1197
1198sub parse_tag {
1199        my $tag_id = shift;
1200        my %tag;
1201        my @comment;
1202
1203        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1204        $tag{'id'} = $tag_id;
1205        while (my $line = <$fd>) {
1206                chomp $line;
1207                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1208                        $tag{'object'} = $1;
1209                } elsif ($line =~ m/^type (.+)$/) {
1210                        $tag{'type'} = $1;
1211                } elsif ($line =~ m/^tag (.+)$/) {
1212                        $tag{'name'} = $1;
1213                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1214                        $tag{'author'} = $1;
1215                        $tag{'epoch'} = $2;
1216                        $tag{'tz'} = $3;
1217                } elsif ($line =~ m/--BEGIN/) {
1218                        push @comment, $line;
1219                        last;
1220                } elsif ($line eq "") {
1221                        last;
1222                }
1223        }
1224        push @comment, <$fd>;
1225        $tag{'comment'} = \@comment;
1226        close $fd or return;
1227        if (!defined $tag{'name'}) {
1228                return
1229        };
1230        return %tag
1231}
1232
1233sub parse_commit {
1234        my $commit_id = shift;
1235        my $commit_text = shift;
1236
1237        my @commit_lines;
1238        my %co;
1239
1240        if (defined $commit_text) {
1241                @commit_lines = @$commit_text;
1242        } else {
1243                local $/ = "\0";
1244                open my $fd, "-|", git_cmd(), "rev-list",
1245                        "--header", "--parents", "--max-count=1",
1246                        $commit_id, "--"
1247                        or return;
1248                @commit_lines = split '\n', <$fd>;
1249                close $fd or return;
1250                pop @commit_lines;
1251        }
1252        my $header = shift @commit_lines;
1253        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1254                return;
1255        }
1256        ($co{'id'}, my @parents) = split ' ', $header;
1257        $co{'parents'} = \@parents;
1258        $co{'parent'} = $parents[0];
1259        while (my $line = shift @commit_lines) {
1260                last if $line eq "\n";
1261                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1262                        $co{'tree'} = $1;
1263                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1264                        $co{'author'} = $1;
1265                        $co{'author_epoch'} = $2;
1266                        $co{'author_tz'} = $3;
1267                        if ($co{'author'} =~ m/^([^<]+) </) {
1268                                $co{'author_name'} = $1;
1269                        } else {
1270                                $co{'author_name'} = $co{'author'};
1271                        }
1272                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1273                        $co{'committer'} = $1;
1274                        $co{'committer_epoch'} = $2;
1275                        $co{'committer_tz'} = $3;
1276                        $co{'committer_name'} = $co{'committer'};
1277                        $co{'committer_name'} =~ s/ <.*//;
1278                }
1279        }
1280        if (!defined $co{'tree'}) {
1281                return;
1282        };
1283
1284        foreach my $title (@commit_lines) {
1285                $title =~ s/^    //;
1286                if ($title ne "") {
1287                        $co{'title'} = chop_str($title, 80, 5);
1288                        # remove leading stuff of merges to make the interesting part visible
1289                        if (length($title) > 50) {
1290                                $title =~ s/^Automatic //;
1291                                $title =~ s/^merge (of|with) /Merge ... /i;
1292                                if (length($title) > 50) {
1293                                        $title =~ s/(http|rsync):\/\///;
1294                                }
1295                                if (length($title) > 50) {
1296                                        $title =~ s/(master|www|rsync)\.//;
1297                                }
1298                                if (length($title) > 50) {
1299                                        $title =~ s/kernel.org:?//;
1300                                }
1301                                if (length($title) > 50) {
1302                                        $title =~ s/\/pub\/scm//;
1303                                }
1304                        }
1305                        $co{'title_short'} = chop_str($title, 50, 5);
1306                        last;
1307                }
1308        }
1309        if ($co{'title'} eq "") {
1310                $co{'title'} = $co{'title_short'} = '(no commit message)';
1311        }
1312        # remove added spaces
1313        foreach my $line (@commit_lines) {
1314                $line =~ s/^    //;
1315        }
1316        $co{'comment'} = \@commit_lines;
1317
1318        my $age = time - $co{'committer_epoch'};
1319        $co{'age'} = $age;
1320        $co{'age_string'} = age_string($age);
1321        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1322        if ($age > 60*60*24*7*2) {
1323                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1324                $co{'age_string_age'} = $co{'age_string'};
1325        } else {
1326                $co{'age_string_date'} = $co{'age_string'};
1327                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1328        }
1329        return %co;
1330}
1331
1332# parse ref from ref_file, given by ref_id, with given type
1333sub parse_ref {
1334        my $ref_file = shift;
1335        my $ref_id = shift;
1336        my $type = shift || git_get_type($ref_id);
1337        my %ref_item;
1338
1339        $ref_item{'type'} = $type;
1340        $ref_item{'id'} = $ref_id;
1341        $ref_item{'epoch'} = 0;
1342        $ref_item{'age'} = "unknown";
1343        if ($type eq "tag") {
1344                my %tag = parse_tag($ref_id);
1345                $ref_item{'comment'} = $tag{'comment'};
1346                if ($tag{'type'} eq "commit") {
1347                        my %co = parse_commit($tag{'object'});
1348                        $ref_item{'epoch'} = $co{'committer_epoch'};
1349                        $ref_item{'age'} = $co{'age_string'};
1350                } elsif (defined($tag{'epoch'})) {
1351                        my $age = time - $tag{'epoch'};
1352                        $ref_item{'epoch'} = $tag{'epoch'};
1353                        $ref_item{'age'} = age_string($age);
1354                }
1355                $ref_item{'reftype'} = $tag{'type'};
1356                $ref_item{'name'} = $tag{'name'};
1357                $ref_item{'refid'} = $tag{'object'};
1358        } elsif ($type eq "commit"){
1359                my %co = parse_commit($ref_id);
1360                $ref_item{'reftype'} = "commit";
1361                $ref_item{'name'} = $ref_file;
1362                $ref_item{'title'} = $co{'title'};
1363                $ref_item{'refid'} = $ref_id;
1364                $ref_item{'epoch'} = $co{'committer_epoch'};
1365                $ref_item{'age'} = $co{'age_string'};
1366        } else {
1367                $ref_item{'reftype'} = $type;
1368                $ref_item{'name'} = $ref_file;
1369                $ref_item{'refid'} = $ref_id;
1370        }
1371
1372        return %ref_item;
1373}
1374
1375# parse line of git-diff-tree "raw" output
1376sub parse_difftree_raw_line {
1377        my $line = shift;
1378        my %res;
1379
1380        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1381        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1382        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1383                $res{'from_mode'} = $1;
1384                $res{'to_mode'} = $2;
1385                $res{'from_id'} = $3;
1386                $res{'to_id'} = $4;
1387                $res{'status'} = $5;
1388                $res{'similarity'} = $6;
1389                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1390                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1391                } else {
1392                        $res{'file'} = unquote($7);
1393                }
1394        }
1395        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1396        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1397                $res{'commit'} = $1;
1398        }
1399
1400        return wantarray ? %res : \%res;
1401}
1402
1403# parse line of git-ls-tree output
1404sub parse_ls_tree_line ($;%) {
1405        my $line = shift;
1406        my %opts = @_;
1407        my %res;
1408
1409        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1410        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1411
1412        $res{'mode'} = $1;
1413        $res{'type'} = $2;
1414        $res{'hash'} = $3;
1415        if ($opts{'-z'}) {
1416                $res{'name'} = $4;
1417        } else {
1418                $res{'name'} = unquote($4);
1419        }
1420
1421        return wantarray ? %res : \%res;
1422}
1423
1424## ......................................................................
1425## parse to array of hashes functions
1426
1427sub git_get_heads_list {
1428        my $limit = shift;
1429        my @headslist;
1430
1431        open my $fd, '-|', git_cmd(), 'for-each-ref',
1432                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1433                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1434                'refs/heads'
1435                or return;
1436        while (my $line = <$fd>) {
1437                my %ref_item;
1438
1439                chomp $line;
1440                my ($refinfo, $committerinfo) = split(/\0/, $line);
1441                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1442                my ($committer, $epoch, $tz) =
1443                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1444                $name =~ s!^refs/heads/!!;
1445
1446                $ref_item{'name'}  = $name;
1447                $ref_item{'id'}    = $hash;
1448                $ref_item{'title'} = $title || '(no commit message)';
1449                $ref_item{'epoch'} = $epoch;
1450                if ($epoch) {
1451                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1452                } else {
1453                        $ref_item{'age'} = "unknown";
1454                }
1455
1456                push @headslist, \%ref_item;
1457        }
1458        close $fd;
1459
1460        return wantarray ? @headslist : \@headslist;
1461}
1462
1463sub git_get_tags_list {
1464        my $limit = shift;
1465        my @tagslist;
1466
1467        open my $fd, '-|', git_cmd(), 'for-each-ref',
1468                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1469                '--format=%(objectname) %(objecttype) %(refname) '.
1470                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1471                'refs/tags'
1472                or return;
1473        while (my $line = <$fd>) {
1474                my %ref_item;
1475
1476                chomp $line;
1477                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1478                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1479                my ($creator, $epoch, $tz) =
1480                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1481                $name =~ s!^refs/tags/!!;
1482
1483                $ref_item{'type'} = $type;
1484                $ref_item{'id'} = $id;
1485                $ref_item{'name'} = $name;
1486                if ($type eq "tag") {
1487                        $ref_item{'subject'} = $title;
1488                        $ref_item{'reftype'} = $reftype;
1489                        $ref_item{'refid'}   = $refid;
1490                } else {
1491                        $ref_item{'reftype'} = $type;
1492                        $ref_item{'refid'}   = $id;
1493                }
1494
1495                if ($type eq "tag" || $type eq "commit") {
1496                        $ref_item{'epoch'} = $epoch;
1497                        if ($epoch) {
1498                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1499                        } else {
1500                                $ref_item{'age'} = "unknown";
1501                        }
1502                }
1503
1504                push @tagslist, \%ref_item;
1505        }
1506        close $fd;
1507
1508        return wantarray ? @tagslist : \@tagslist;
1509}
1510
1511## ----------------------------------------------------------------------
1512## filesystem-related functions
1513
1514sub get_file_owner {
1515        my $path = shift;
1516
1517        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1518        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1519        if (!defined $gcos) {
1520                return undef;
1521        }
1522        my $owner = $gcos;
1523        $owner =~ s/[,;].*$//;
1524        return to_utf8($owner);
1525}
1526
1527## ......................................................................
1528## mimetype related functions
1529
1530sub mimetype_guess_file {
1531        my $filename = shift;
1532        my $mimemap = shift;
1533        -r $mimemap or return undef;
1534
1535        my %mimemap;
1536        open(MIME, $mimemap) or return undef;
1537        while (<MIME>) {
1538                next if m/^#/; # skip comments
1539                my ($mime, $exts) = split(/\t+/);
1540                if (defined $exts) {
1541                        my @exts = split(/\s+/, $exts);
1542                        foreach my $ext (@exts) {
1543                                $mimemap{$ext} = $mime;
1544                        }
1545                }
1546        }
1547        close(MIME);
1548
1549        $filename =~ /\.([^.]*)$/;
1550        return $mimemap{$1};
1551}
1552
1553sub mimetype_guess {
1554        my $filename = shift;
1555        my $mime;
1556        $filename =~ /\./ or return undef;
1557
1558        if ($mimetypes_file) {
1559                my $file = $mimetypes_file;
1560                if ($file !~ m!^/!) { # if it is relative path
1561                        # it is relative to project
1562                        $file = "$projectroot/$project/$file";
1563                }
1564                $mime = mimetype_guess_file($filename, $file);
1565        }
1566        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1567        return $mime;
1568}
1569
1570sub blob_mimetype {
1571        my $fd = shift;
1572        my $filename = shift;
1573
1574        if ($filename) {
1575                my $mime = mimetype_guess($filename);
1576                $mime and return $mime;
1577        }
1578
1579        # just in case
1580        return $default_blob_plain_mimetype unless $fd;
1581
1582        if (-T $fd) {
1583                return 'text/plain' .
1584                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1585        } elsif (! $filename) {
1586                return 'application/octet-stream';
1587        } elsif ($filename =~ m/\.png$/i) {
1588                return 'image/png';
1589        } elsif ($filename =~ m/\.gif$/i) {
1590                return 'image/gif';
1591        } elsif ($filename =~ m/\.jpe?g$/i) {
1592                return 'image/jpeg';
1593        } else {
1594                return 'application/octet-stream';
1595        }
1596}
1597
1598## ======================================================================
1599## functions printing HTML: header, footer, error page
1600
1601sub git_header_html {
1602        my $status = shift || "200 OK";
1603        my $expires = shift;
1604
1605        my $title = "$site_name";
1606        if (defined $project) {
1607                $title .= " - $project";
1608                if (defined $action) {
1609                        $title .= "/$action";
1610                        if (defined $file_name) {
1611                                $title .= " - " . esc_path($file_name);
1612                                if ($action eq "tree" && $file_name !~ m|/$|) {
1613                                        $title .= "/";
1614                                }
1615                        }
1616                }
1617        }
1618        my $content_type;
1619        # require explicit support from the UA if we are to send the page as
1620        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1621        # we have to do this because MSIE sometimes globs '*/*', pretending to
1622        # support xhtml+xml but choking when it gets what it asked for.
1623        if (defined $cgi->http('HTTP_ACCEPT') &&
1624            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1625            $cgi->Accept('application/xhtml+xml') != 0) {
1626                $content_type = 'application/xhtml+xml';
1627        } else {
1628                $content_type = 'text/html';
1629        }
1630        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1631                           -status=> $status, -expires => $expires);
1632        print <<EOF;
1633<?xml version="1.0" encoding="utf-8"?>
1634<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1635<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1636<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1637<!-- git core binaries version $git_version -->
1638<head>
1639<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1640<meta name="generator" content="gitweb/$version git/$git_version"/>
1641<meta name="robots" content="index, nofollow"/>
1642<title>$title</title>
1643EOF
1644# print out each stylesheet that exist
1645        if (defined $stylesheet) {
1646#provides backwards capability for those people who define style sheet in a config file
1647                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1648        } else {
1649                foreach my $stylesheet (@stylesheets) {
1650                        next unless $stylesheet;
1651                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1652                }
1653        }
1654        if (defined $project) {
1655                printf('<link rel="alternate" title="%s log" '.
1656                       'href="%s" type="application/rss+xml"/>'."\n",
1657                       esc_param($project), href(action=>"rss"));
1658        } else {
1659                printf('<link rel="alternate" title="%s projects list" '.
1660                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1661                       $site_name, href(project=>undef, action=>"project_index"));
1662                printf('<link rel="alternate" title="%s projects logs" '.
1663                       'href="%s" type="text/x-opml"/>'."\n",
1664                       $site_name, href(project=>undef, action=>"opml"));
1665        }
1666        if (defined $favicon) {
1667                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1668        }
1669
1670        print "</head>\n" .
1671              "<body>\n";
1672
1673        if (-f $site_header) {
1674                open (my $fd, $site_header);
1675                print <$fd>;
1676                close $fd;
1677        }
1678
1679        print "<div class=\"page_header\">\n" .
1680              $cgi->a({-href => esc_url($logo_url),
1681                       -title => $logo_label},
1682                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1683        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1684        if (defined $project) {
1685                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1686                if (defined $action) {
1687                        print " / $action";
1688                }
1689                print "\n";
1690                if (!defined $searchtext) {
1691                        $searchtext = "";
1692                }
1693                my $search_hash;
1694                if (defined $hash_base) {
1695                        $search_hash = $hash_base;
1696                } elsif (defined $hash) {
1697                        $search_hash = $hash;
1698                } else {
1699                        $search_hash = "HEAD";
1700                }
1701                $cgi->param("a", "search");
1702                $cgi->param("h", $search_hash);
1703                $cgi->param("p", $project);
1704                print $cgi->startform(-method => "get", -action => $my_uri) .
1705                      "<div class=\"search\">\n" .
1706                      $cgi->hidden(-name => "p") . "\n" .
1707                      $cgi->hidden(-name => "a") . "\n" .
1708                      $cgi->hidden(-name => "h") . "\n" .
1709                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1710                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1711                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1712                      " search:\n",
1713                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1714                      "</div>" .
1715                      $cgi->end_form() . "\n";
1716        }
1717        print "</div>\n";
1718}
1719
1720sub git_footer_html {
1721        print "<div class=\"page_footer\">\n";
1722        if (defined $project) {
1723                my $descr = git_get_project_description($project);
1724                if (defined $descr) {
1725                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1726                }
1727                print $cgi->a({-href => href(action=>"rss"),
1728                              -class => "rss_logo"}, "RSS") . "\n";
1729        } else {
1730                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1731                              -class => "rss_logo"}, "OPML") . " ";
1732                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1733                              -class => "rss_logo"}, "TXT") . "\n";
1734        }
1735        print "</div>\n" ;
1736
1737        if (-f $site_footer) {
1738                open (my $fd, $site_footer);
1739                print <$fd>;
1740                close $fd;
1741        }
1742
1743        print "</body>\n" .
1744              "</html>";
1745}
1746
1747sub die_error {
1748        my $status = shift || "403 Forbidden";
1749        my $error = shift || "Malformed query, file missing or permission denied";
1750
1751        git_header_html($status);
1752        print <<EOF;
1753<div class="page_body">
1754<br /><br />
1755$status - $error
1756<br />
1757</div>
1758EOF
1759        git_footer_html();
1760        exit;
1761}
1762
1763## ----------------------------------------------------------------------
1764## functions printing or outputting HTML: navigation
1765
1766sub git_print_page_nav {
1767        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1768        $extra = '' if !defined $extra; # pager or formats
1769
1770        my @navs = qw(summary shortlog log commit commitdiff tree);
1771        if ($suppress) {
1772                @navs = grep { $_ ne $suppress } @navs;
1773        }
1774
1775        my %arg = map { $_ => {action=>$_} } @navs;
1776        if (defined $head) {
1777                for (qw(commit commitdiff)) {
1778                        $arg{$_}{hash} = $head;
1779                }
1780                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1781                        for (qw(shortlog log)) {
1782                                $arg{$_}{hash} = $head;
1783                        }
1784                }
1785        }
1786        $arg{tree}{hash} = $treehead if defined $treehead;
1787        $arg{tree}{hash_base} = $treebase if defined $treebase;
1788
1789        print "<div class=\"page_nav\">\n" .
1790                (join " | ",
1791                 map { $_ eq $current ?
1792                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1793                 } @navs);
1794        print "<br/>\n$extra<br/>\n" .
1795              "</div>\n";
1796}
1797
1798sub format_paging_nav {
1799        my ($action, $hash, $head, $page, $nrevs) = @_;
1800        my $paging_nav;
1801
1802
1803        if ($hash ne $head || $page) {
1804                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1805        } else {
1806                $paging_nav .= "HEAD";
1807        }
1808
1809        if ($page > 0) {
1810                $paging_nav .= " &sdot; " .
1811                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1812                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1813        } else {
1814                $paging_nav .= " &sdot; prev";
1815        }
1816
1817        if ($nrevs >= (100 * ($page+1)-1)) {
1818                $paging_nav .= " &sdot; " .
1819                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1820                                 -accesskey => "n", -title => "Alt-n"}, "next");
1821        } else {
1822                $paging_nav .= " &sdot; next";
1823        }
1824
1825        return $paging_nav;
1826}
1827
1828## ......................................................................
1829## functions printing or outputting HTML: div
1830
1831sub git_print_header_div {
1832        my ($action, $title, $hash, $hash_base) = @_;
1833        my %args = ();
1834
1835        $args{action} = $action;
1836        $args{hash} = $hash if $hash;
1837        $args{hash_base} = $hash_base if $hash_base;
1838
1839        print "<div class=\"header\">\n" .
1840              $cgi->a({-href => href(%args), -class => "title"},
1841              $title ? $title : $action) .
1842              "\n</div>\n";
1843}
1844
1845#sub git_print_authorship (\%) {
1846sub git_print_authorship {
1847        my $co = shift;
1848
1849        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1850        print "<div class=\"author_date\">" .
1851              esc_html($co->{'author_name'}) .
1852              " [$ad{'rfc2822'}";
1853        if ($ad{'hour_local'} < 6) {
1854                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1855                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1856        } else {
1857                printf(" (%02d:%02d %s)",
1858                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1859        }
1860        print "]</div>\n";
1861}
1862
1863sub git_print_page_path {
1864        my $name = shift;
1865        my $type = shift;
1866        my $hb = shift;
1867
1868
1869        print "<div class=\"page_path\">";
1870        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1871                      -title => 'tree root'}, "[$project]");
1872        print " / ";
1873        if (defined $name) {
1874                my @dirname = split '/', $name;
1875                my $basename = pop @dirname;
1876                my $fullname = '';
1877
1878                foreach my $dir (@dirname) {
1879                        $fullname .= ($fullname ? '/' : '') . $dir;
1880                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1881                                                     hash_base=>$hb),
1882                                      -title => $fullname}, esc_path($dir));
1883                        print " / ";
1884                }
1885                if (defined $type && $type eq 'blob') {
1886                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1887                                                     hash_base=>$hb),
1888                                      -title => $name}, esc_path($basename));
1889                } elsif (defined $type && $type eq 'tree') {
1890                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1891                                                     hash_base=>$hb),
1892                                      -title => $name}, esc_path($basename));
1893                        print " / ";
1894                } else {
1895                        print esc_path($basename);
1896                }
1897        }
1898        print "<br/></div>\n";
1899}
1900
1901# sub git_print_log (\@;%) {
1902sub git_print_log ($;%) {
1903        my $log = shift;
1904        my %opts = @_;
1905
1906        if ($opts{'-remove_title'}) {
1907                # remove title, i.e. first line of log
1908                shift @$log;
1909        }
1910        # remove leading empty lines
1911        while (defined $log->[0] && $log->[0] eq "") {
1912                shift @$log;
1913        }
1914
1915        # print log
1916        my $signoff = 0;
1917        my $empty = 0;
1918        foreach my $line (@$log) {
1919                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1920                        $signoff = 1;
1921                        $empty = 0;
1922                        if (! $opts{'-remove_signoff'}) {
1923                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1924                                next;
1925                        } else {
1926                                # remove signoff lines
1927                                next;
1928                        }
1929                } else {
1930                        $signoff = 0;
1931                }
1932
1933                # print only one empty line
1934                # do not print empty line after signoff
1935                if ($line eq "") {
1936                        next if ($empty || $signoff);
1937                        $empty = 1;
1938                } else {
1939                        $empty = 0;
1940                }
1941
1942                print format_log_line_html($line) . "<br/>\n";
1943        }
1944
1945        if ($opts{'-final_empty_line'}) {
1946                # end with single empty line
1947                print "<br/>\n" unless $empty;
1948        }
1949}
1950
1951# print tree entry (row of git_tree), but without encompassing <tr> element
1952sub git_print_tree_entry {
1953        my ($t, $basedir, $hash_base, $have_blame) = @_;
1954
1955        my %base_key = ();
1956        $base_key{hash_base} = $hash_base if defined $hash_base;
1957
1958        # The format of a table row is: mode list link.  Where mode is
1959        # the mode of the entry, list is the name of the entry, an href,
1960        # and link is the action links of the entry.
1961
1962        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1963        if ($t->{'type'} eq "blob") {
1964                print "<td class=\"list\">" .
1965                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1966                                               file_name=>"$basedir$t->{'name'}", %base_key),
1967                                -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
1968                print "<td class=\"link\">";
1969                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1970                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1971                              "blob");
1972                if ($have_blame) {
1973                        print " | " .
1974                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1975                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
1976                                            "blame");
1977                }
1978                if (defined $hash_base) {
1979                        print " | " .
1980                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1981                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1982                                      "history");
1983                }
1984                print " | " .
1985                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1986                                               file_name=>"$basedir$t->{'name'}")},
1987                                "raw");
1988                print "</td>\n";
1989
1990        } elsif ($t->{'type'} eq "tree") {
1991                print "<td class=\"list\">";
1992                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1993                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1994                              esc_path($t->{'name'}));
1995                print "</td>\n";
1996                print "<td class=\"link\">";
1997                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1998                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1999                              "tree");
2000                if (defined $hash_base) {
2001                        print " | " .
2002                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2003                                                     file_name=>"$basedir$t->{'name'}")},
2004                                      "history");
2005                }
2006                print "</td>\n";
2007        }
2008}
2009
2010## ......................................................................
2011## functions printing large fragments of HTML
2012
2013sub git_difftree_body {
2014        my ($difftree, $hash, $parent) = @_;
2015        my ($have_blame) = gitweb_check_feature('blame');
2016        print "<div class=\"list_head\">\n";
2017        if ($#{$difftree} > 10) {
2018                print(($#{$difftree} + 1) . " files changed:\n");
2019        }
2020        print "</div>\n";
2021
2022        print "<table class=\"diff_tree\">\n";
2023        my $alternate = 1;
2024        my $patchno = 0;
2025        foreach my $line (@{$difftree}) {
2026                my %diff = parse_difftree_raw_line($line);
2027
2028                if ($alternate) {
2029                        print "<tr class=\"dark\">\n";
2030                } else {
2031                        print "<tr class=\"light\">\n";
2032                }
2033                $alternate ^= 1;
2034
2035                my ($to_mode_oct, $to_mode_str, $to_file_type);
2036                my ($from_mode_oct, $from_mode_str, $from_file_type);
2037                if ($diff{'to_mode'} ne ('0' x 6)) {
2038                        $to_mode_oct = oct $diff{'to_mode'};
2039                        if (S_ISREG($to_mode_oct)) { # only for regular file
2040                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2041                        }
2042                        $to_file_type = file_type($diff{'to_mode'});
2043                }
2044                if ($diff{'from_mode'} ne ('0' x 6)) {
2045                        $from_mode_oct = oct $diff{'from_mode'};
2046                        if (S_ISREG($to_mode_oct)) { # only for regular file
2047                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2048                        }
2049                        $from_file_type = file_type($diff{'from_mode'});
2050                }
2051
2052                if ($diff{'status'} eq "A") { # created
2053                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2054                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2055                        $mode_chng   .= "]</span>";
2056                        print "<td>";
2057                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2058                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2059                                      -class => "list"}, esc_path($diff{'file'}));
2060                        print "</td>\n";
2061                        print "<td>$mode_chng</td>\n";
2062                        print "<td class=\"link\">";
2063                        if ($action eq 'commitdiff') {
2064                                # link to patch
2065                                $patchno++;
2066                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2067                        }
2068                        print "</td>\n";
2069
2070                } elsif ($diff{'status'} eq "D") { # deleted
2071                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2072                        print "<td>";
2073                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2074                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2075                                       -class => "list"}, esc_path($diff{'file'}));
2076                        print "</td>\n";
2077                        print "<td>$mode_chng</td>\n";
2078                        print "<td class=\"link\">";
2079                        if ($action eq 'commitdiff') {
2080                                # link to patch
2081                                $patchno++;
2082                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2083                                print " | ";
2084                        }
2085                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2086                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2087                                      "blob") . " | ";
2088                        if ($have_blame) {
2089                                print $cgi->a({-href =>
2090                                                   href(action=>"blame",
2091                                                        hash_base=>$parent,
2092                                                        file_name=>$diff{'file'})},
2093                                              "blame") . " | ";
2094                        }
2095                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2096                                                     file_name=>$diff{'file'})},
2097                                      "history");
2098                        print "</td>\n";
2099
2100                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2101                        my $mode_chnge = "";
2102                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2103                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2104                                if ($from_file_type != $to_file_type) {
2105                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2106                                }
2107                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2108                                        if ($from_mode_str && $to_mode_str) {
2109                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2110                                        } elsif ($to_mode_str) {
2111                                                $mode_chnge .= " mode: $to_mode_str";
2112                                        }
2113                                }
2114                                $mode_chnge .= "]</span>\n";
2115                        }
2116                        print "<td>";
2117                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2118                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2119                                      -class => "list"}, esc_path($diff{'file'}));
2120                        print "</td>\n";
2121                        print "<td>$mode_chnge</td>\n";
2122                        print "<td class=\"link\">";
2123                        if ($action eq 'commitdiff') {
2124                                # link to patch
2125                                $patchno++;
2126                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2127                                      " | ";
2128                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2129                                # "commit" view and modified file (not onlu mode changed)
2130                                print $cgi->a({-href => href(action=>"blobdiff",
2131                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2132                                                             hash_base=>$hash, hash_parent_base=>$parent,
2133                                                             file_name=>$diff{'file'})},
2134                                              "diff") .
2135                                      " | ";
2136                        }
2137                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2138                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2139                                      "blob") . " | ";
2140                        if ($have_blame) {
2141                                print $cgi->a({-href => href(action=>"blame",
2142                                                             hash_base=>$hash,
2143                                                             file_name=>$diff{'file'})},
2144                                              "blame") . " | ";
2145                        }
2146                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2147                                                     file_name=>$diff{'file'})},
2148                                      "history");
2149                        print "</td>\n";
2150
2151                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2152                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2153                        my $nstatus = $status_name{$diff{'status'}};
2154                        my $mode_chng = "";
2155                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2156                                # mode also for directories, so we cannot use $to_mode_str
2157                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2158                        }
2159                        print "<td>" .
2160                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2161                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2162                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2163                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2164                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2165                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2166                                      -class => "list"}, esc_path($diff{'from_file'})) .
2167                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2168                              "<td class=\"link\">";
2169                        if ($action eq 'commitdiff') {
2170                                # link to patch
2171                                $patchno++;
2172                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2173                                      " | ";
2174                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2175                                # "commit" view and modified file (not only pure rename or copy)
2176                                print $cgi->a({-href => href(action=>"blobdiff",
2177                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2178                                                             hash_base=>$hash, hash_parent_base=>$parent,
2179                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2180                                              "diff") .
2181                                      " | ";
2182                        }
2183                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2184                                                     hash_base=>$parent, file_name=>$diff{'from_file'})},
2185                                      "blob") . " | ";
2186                        if ($have_blame) {
2187                                print $cgi->a({-href => href(action=>"blame",
2188                                                             hash_base=>$hash,
2189                                                             file_name=>$diff{'to_file'})},
2190                                              "blame") . " | ";
2191                        }
2192                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2193                                                    file_name=>$diff{'from_file'})},
2194                                      "history");
2195                        print "</td>\n";
2196
2197                } # we should not encounter Unmerged (U) or Unknown (X) status
2198                print "</tr>\n";
2199        }
2200        print "</table>\n";
2201}
2202
2203sub git_patchset_body {
2204        my ($fd, $difftree, $hash, $hash_parent) = @_;
2205
2206        my $patch_idx = 0;
2207        my $in_header = 0;
2208        my $patch_found = 0;
2209        my $diffinfo;
2210        my (%from, %to);
2211
2212        print "<div class=\"patchset\">\n";
2213
2214        LINE:
2215        while (my $patch_line = <$fd>) {
2216                chomp $patch_line;
2217
2218                if ($patch_line =~ m/^diff /) { # "git diff" header
2219                        # beginning of patch (in patchset)
2220                        if ($patch_found) {
2221                                # close extended header for previous empty patch
2222                                if ($in_header) {
2223                                        print "</div>\n" # class="diff extended_header"
2224                                }
2225                                # close previous patch
2226                                print "</div>\n"; # class="patch"
2227                        } else {
2228                                # first patch in patchset
2229                                $patch_found = 1;
2230                        }
2231                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2232
2233                        # read and prepare patch information
2234                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2235                                # pre-parsed (or generated by hand)
2236                                $diffinfo = $difftree->[$patch_idx];
2237                        } else {
2238                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2239                        }
2240                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2241                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2242                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2243                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2244                                                     hash=>$diffinfo->{'from_id'},
2245                                                     file_name=>$from{'file'});
2246                        }
2247                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2248                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2249                                                   hash=>$diffinfo->{'to_id'},
2250                                                   file_name=>$to{'file'});
2251                        }
2252                        $patch_idx++;
2253
2254                        # print "git diff" header
2255                        $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2256                        if ($from{'href'}) {
2257                                $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2258                                                       'a/' . esc_path($from{'file'}));
2259                        } else { # file was added
2260                                $patch_line .= 'a/' . esc_path($from{'file'});
2261                        }
2262                        $patch_line .= ' ';
2263                        if ($to{'href'}) {
2264                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2265                                                       'b/' . esc_path($to{'file'}));
2266                        } else { # file was deleted
2267                                $patch_line .= 'b/' . esc_path($to{'file'});
2268                        }
2269
2270                        print "<div class=\"diff header\">$patch_line</div>\n";
2271                        print "<div class=\"diff extended_header\">\n";
2272                        $in_header = 1;
2273                        next LINE;
2274                }
2275
2276                if ($in_header) {
2277                        if ($patch_line !~ m/^---/) {
2278                                # match <path>
2279                                if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2280                                        $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2281                                                                esc_path($from{'file'}));
2282                                }
2283                                if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2284                                        $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2285                                                              esc_path($to{'file'}));
2286                                }
2287                                # match <mode>
2288                                if ($patch_line =~ m/\s(\d{6})$/) {
2289                                        $patch_line .= '<span class="info"> (' .
2290                                                       file_type_long($1) .
2291                                                       ')</span>';
2292                                }
2293                                # match <hash>
2294                                if ($patch_line =~ m/^index/) {
2295                                        my ($from_link, $to_link);
2296                                        if ($from{'href'}) {
2297                                                $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2298                                                                     substr($diffinfo->{'from_id'},0,7));
2299                                        } else {
2300                                                $from_link = '0' x 7;
2301                                        }
2302                                        if ($to{'href'}) {
2303                                                $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2304                                                                   substr($diffinfo->{'to_id'},0,7));
2305                                        } else {
2306                                                $to_link = '0' x 7;
2307                                        }
2308                                        my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2309                                        $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2310                                }
2311                                print $patch_line . "<br/>\n";
2312
2313                        } else {
2314                                #$in_header && $patch_line =~ m/^---/;
2315                                print "</div>\n"; # class="diff extended_header"
2316                                $in_header = 0;
2317
2318                                if ($from{'href'}) {
2319                                        $patch_line = '--- a/' .
2320                                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2321                                                              esc_path($from{'file'}));
2322                                }
2323                                print "<div class=\"diff from_file\">$patch_line</div>\n";
2324
2325                                $patch_line = <$fd>;
2326                                chomp $patch_line;
2327
2328                                #$patch_line =~ m/^+++/;
2329                                if ($to{'href'}) {
2330                                        $patch_line = '+++ b/' .
2331                                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2332                                                              esc_path($to{'file'}));
2333                                }
2334                                print "<div class=\"diff to_file\">$patch_line</div>\n";
2335
2336                        }
2337
2338                        next LINE;
2339                }
2340
2341                print format_diff_line($patch_line);
2342        }
2343        print "</div>\n" if $patch_found; # class="patch"
2344
2345        print "</div>\n"; # class="patchset"
2346}
2347
2348# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2349
2350sub git_project_list_body {
2351        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2352
2353        my ($check_forks) = gitweb_check_feature('forks');
2354
2355        my @projects;
2356        foreach my $pr (@$projlist) {
2357                my (@aa) = git_get_last_activity($pr->{'path'});
2358                unless (@aa) {
2359                        next;
2360                }
2361                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2362                if (!defined $pr->{'descr'}) {
2363                        my $descr = git_get_project_description($pr->{'path'}) || "";
2364                        $pr->{'descr'} = chop_str($descr, 25, 5);
2365                }
2366                if (!defined $pr->{'owner'}) {
2367                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2368                }
2369                if ($check_forks) {
2370                        my $pname = $pr->{'path'};
2371                        if (($pname =~ s/\.git$//) &&
2372                            ($pname !~ /\/$/) &&
2373                            (-d "$projectroot/$pname")) {
2374                                $pr->{'forks'} = "-d $projectroot/$pname";
2375                        }
2376                        else {
2377                                $pr->{'forks'} = 0;
2378                        }
2379                }
2380                push @projects, $pr;
2381        }
2382
2383        $order ||= "project";
2384        $from = 0 unless defined $from;
2385        $to = $#projects if (!defined $to || $#projects < $to);
2386
2387        print "<table class=\"project_list\">\n";
2388        unless ($no_header) {
2389                print "<tr>\n";
2390                if ($check_forks) {
2391                        print "<th></th>\n";
2392                }
2393                if ($order eq "project") {
2394                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2395                        print "<th>Project</th>\n";
2396                } else {
2397                        print "<th>" .
2398                              $cgi->a({-href => href(project=>undef, order=>'project'),
2399                                       -class => "header"}, "Project") .
2400                              "</th>\n";
2401                }
2402                if ($order eq "descr") {
2403                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2404                        print "<th>Description</th>\n";
2405                } else {
2406                        print "<th>" .
2407                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2408                                       -class => "header"}, "Description") .
2409                              "</th>\n";
2410                }
2411                if ($order eq "owner") {
2412                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2413                        print "<th>Owner</th>\n";
2414                } else {
2415                        print "<th>" .
2416                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2417                                       -class => "header"}, "Owner") .
2418                              "</th>\n";
2419                }
2420                if ($order eq "age") {
2421                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2422                        print "<th>Last Change</th>\n";
2423                } else {
2424                        print "<th>" .
2425                              $cgi->a({-href => href(project=>undef, order=>'age'),
2426                                       -class => "header"}, "Last Change") .
2427                              "</th>\n";
2428                }
2429                print "<th></th>\n" .
2430                      "</tr>\n";
2431        }
2432        my $alternate = 1;
2433        for (my $i = $from; $i <= $to; $i++) {
2434                my $pr = $projects[$i];
2435                if ($alternate) {
2436                        print "<tr class=\"dark\">\n";
2437                } else {
2438                        print "<tr class=\"light\">\n";
2439                }
2440                $alternate ^= 1;
2441                if ($check_forks) {
2442                        print "<td>";
2443                        if ($pr->{'forks'}) {
2444                                print "<!-- $pr->{'forks'} -->\n";
2445                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2446                        }
2447                        print "</td>\n";
2448                }
2449                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2450                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2451                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2452                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2453                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2454                      $pr->{'age_string'} . "</td>\n" .
2455                      "<td class=\"link\">" .
2456                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2457                      $cgi->a({-href => '/git-browser/by-commit.html?r='.$pr->{'path'}}, "graphiclog") . " | " .
2458                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2459                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2460                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2461                      "</td>\n" .
2462                      "</tr>\n";
2463        }
2464        if (defined $extra) {
2465                print "<tr>\n";
2466                if ($check_forks) {
2467                        print "<td></td>\n";
2468                }
2469                print "<td colspan=\"5\">$extra</td>\n" .
2470                      "</tr>\n";
2471        }
2472        print "</table>\n";
2473}
2474
2475sub git_shortlog_body {
2476        # uses global variable $project
2477        my ($revlist, $from, $to, $refs, $extra) = @_;
2478
2479        $from = 0 unless defined $from;
2480        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2481
2482        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2483        my $alternate = 1;
2484        for (my $i = $from; $i <= $to; $i++) {
2485                my $commit = $revlist->[$i];
2486                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2487                my $ref = format_ref_marker($refs, $commit);
2488                my %co = parse_commit($commit);
2489                if ($alternate) {
2490                        print "<tr class=\"dark\">\n";
2491                } else {
2492                        print "<tr class=\"light\">\n";
2493                }
2494                $alternate ^= 1;
2495                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2496                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2497                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2498                      "<td>";
2499                print format_subject_html($co{'title'}, $co{'title_short'},
2500                                          href(action=>"commit", hash=>$commit), $ref);
2501                print "</td>\n" .
2502                      "<td class=\"link\">" .
2503                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2504                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2505                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2506                if (gitweb_have_snapshot()) {
2507                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2508                }
2509                print "</td>\n" .
2510                      "</tr>\n";
2511        }
2512        if (defined $extra) {
2513                print "<tr>\n" .
2514                      "<td colspan=\"4\">$extra</td>\n" .
2515                      "</tr>\n";
2516        }
2517        print "</table>\n";
2518}
2519
2520sub git_history_body {
2521        # Warning: assumes constant type (blob or tree) during history
2522        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2523
2524        $from = 0 unless defined $from;
2525        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2526
2527        print "<table class=\"history\" cellspacing=\"0\">\n";
2528        my $alternate = 1;
2529        for (my $i = $from; $i <= $to; $i++) {
2530                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2531                        next;
2532                }
2533
2534                my $commit = $1;
2535                my %co = parse_commit($commit);
2536                if (!%co) {
2537                        next;
2538                }
2539
2540                my $ref = format_ref_marker($refs, $commit);
2541
2542                if ($alternate) {
2543                        print "<tr class=\"dark\">\n";
2544                } else {
2545                        print "<tr class=\"light\">\n";
2546                }
2547                $alternate ^= 1;
2548                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2549                      # shortlog uses      chop_str($co{'author_name'}, 10)
2550                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2551                      "<td>";
2552                # originally git_history used chop_str($co{'title'}, 50)
2553                print format_subject_html($co{'title'}, $co{'title_short'},
2554                                          href(action=>"commit", hash=>$commit), $ref);
2555                print "</td>\n" .
2556                      "<td class=\"link\">" .
2557                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2558                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2559
2560                if ($ftype eq 'blob') {
2561                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2562                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2563                        if (defined $blob_current && defined $blob_parent &&
2564                                        $blob_current ne $blob_parent) {
2565                                print " | " .
2566                                        $cgi->a({-href => href(action=>"blobdiff",
2567                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2568                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2569                                                               file_name=>$file_name)},
2570                                                "diff to current");
2571                        }
2572                }
2573                print "</td>\n" .
2574                      "</tr>\n";
2575        }
2576        if (defined $extra) {
2577                print "<tr>\n" .
2578                      "<td colspan=\"4\">$extra</td>\n" .
2579                      "</tr>\n";
2580        }
2581        print "</table>\n";
2582}
2583
2584sub git_tags_body {
2585        # uses global variable $project
2586        my ($taglist, $from, $to, $extra) = @_;
2587        $from = 0 unless defined $from;
2588        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2589
2590        print "<table class=\"tags\" cellspacing=\"0\">\n";
2591        my $alternate = 1;
2592        for (my $i = $from; $i <= $to; $i++) {
2593                my $entry = $taglist->[$i];
2594                my %tag = %$entry;
2595                my $comment = $tag{'subject'};
2596                my $comment_short;
2597                if (defined $comment) {
2598                        $comment_short = chop_str($comment, 30, 5);
2599                }
2600                if ($alternate) {
2601                        print "<tr class=\"dark\">\n";
2602                } else {
2603                        print "<tr class=\"light\">\n";
2604                }
2605                $alternate ^= 1;
2606                print "<td><i>$tag{'age'}</i></td>\n" .
2607                      "<td>" .
2608                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2609                               -class => "list name"}, esc_html($tag{'name'})) .
2610                      "</td>\n" .
2611                      "<td>";
2612                if (defined $comment) {
2613                        print format_subject_html($comment, $comment_short,
2614                                                  href(action=>"tag", hash=>$tag{'id'}));
2615                }
2616                print "</td>\n" .
2617                      "<td class=\"selflink\">";
2618                if ($tag{'type'} eq "tag") {
2619                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2620                } else {
2621                        print "&nbsp;";
2622                }
2623                print "</td>\n" .
2624                      "<td class=\"link\">" . " | " .
2625                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2626                if ($tag{'reftype'} eq "commit") {
2627                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2628                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2629                } elsif ($tag{'reftype'} eq "blob") {
2630                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2631                }
2632                print "</td>\n" .
2633                      "</tr>";
2634        }
2635        if (defined $extra) {
2636                print "<tr>\n" .
2637                      "<td colspan=\"5\">$extra</td>\n" .
2638                      "</tr>\n";
2639        }
2640        print "</table>\n";
2641}
2642
2643sub git_heads_body {
2644        # uses global variable $project
2645        my ($headlist, $head, $from, $to, $extra) = @_;
2646        $from = 0 unless defined $from;
2647        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2648
2649        print "<table class=\"heads\" cellspacing=\"0\">\n";
2650        my $alternate = 1;
2651        for (my $i = $from; $i <= $to; $i++) {
2652                my $entry = $headlist->[$i];
2653                my %ref = %$entry;
2654                my $curr = $ref{'id'} eq $head;
2655                if ($alternate) {
2656                        print "<tr class=\"dark\">\n";
2657                } else {
2658                        print "<tr class=\"light\">\n";
2659                }
2660                $alternate ^= 1;
2661                print "<td><i>$ref{'age'}</i></td>\n" .
2662                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2663                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2664                               -class => "list name"},esc_html($ref{'name'})) .
2665                      "</td>\n" .
2666                      "<td class=\"link\">" .
2667                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2668                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2669                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2670                      "</td>\n" .
2671                      "</tr>";
2672        }
2673        if (defined $extra) {
2674                print "<tr>\n" .
2675                      "<td colspan=\"3\">$extra</td>\n" .
2676                      "</tr>\n";
2677        }
2678        print "</table>\n";
2679}
2680
2681## ======================================================================
2682## ======================================================================
2683## actions
2684
2685sub git_project_list {
2686        my $order = $cgi->param('o');
2687        if (defined $order && $order !~ m/project|descr|owner|age/) {
2688                die_error(undef, "Unknown order parameter");
2689        }
2690
2691        my @list = git_get_projects_list();
2692        if (!@list) {
2693                die_error(undef, "No projects found");
2694        }
2695
2696        git_header_html();
2697        if (-f $home_text) {
2698                print "<div class=\"index_include\">\n";
2699                open (my $fd, $home_text);
2700                print <$fd>;
2701                close $fd;
2702                print "</div>\n";
2703        }
2704        git_project_list_body(\@list, $order);
2705        git_footer_html();
2706}
2707
2708sub git_forks {
2709        my $order = $cgi->param('o');
2710        if (defined $order && $order !~ m/project|descr|owner|age/) {
2711                die_error(undef, "Unknown order parameter");
2712        }
2713
2714        my @list = git_get_projects_list($project);
2715        if (!@list) {
2716                die_error(undef, "No forks found");
2717        }
2718
2719        git_header_html();
2720        git_print_page_nav('','');
2721        git_print_header_div('summary', "$project forks");
2722        git_project_list_body(\@list, $order);
2723        git_footer_html();
2724}
2725
2726sub git_project_index {
2727        my @projects = git_get_projects_list($project);
2728
2729        print $cgi->header(
2730                -type => 'text/plain',
2731                -charset => 'utf-8',
2732                -content_disposition => 'inline; filename="index.aux"');
2733
2734        foreach my $pr (@projects) {
2735                if (!exists $pr->{'owner'}) {
2736                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2737                }
2738
2739                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2740                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2741                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2742                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2743                $path  =~ s/ /\+/g;
2744                $owner =~ s/ /\+/g;
2745
2746                print "$path $owner\n";
2747        }
2748}
2749
2750sub git_summary {
2751        my $descr = git_get_project_description($project) || "none";
2752        my $head = git_get_head_hash($project);
2753        my %co = parse_commit($head);
2754        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2755
2756        my $owner = git_get_project_owner($project);
2757
2758        my $refs = git_get_references();
2759        my @taglist  = git_get_tags_list(15);
2760        my @headlist = git_get_heads_list(15);
2761        my @forklist;
2762        my ($check_forks) = gitweb_check_feature('forks');
2763
2764        if ($check_forks) {
2765                @forklist = git_get_projects_list($project);
2766        }
2767
2768        git_header_html();
2769        git_print_page_nav('summary','', $head);
2770
2771        print "<div class=\"title\">&nbsp;</div>\n";
2772        print "<table cellspacing=\"0\">\n" .
2773              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2774              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2775              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2776        # use per project git URL list in $projectroot/$project/cloneurl
2777        # or make project git URL from git base URL and project name
2778        my $url_tag = "URL";
2779        my @url_list = git_get_project_url_list($project);
2780        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2781        foreach my $git_url (@url_list) {
2782                next unless $git_url;
2783                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2784                $url_tag = "";
2785        }
2786        print "</table>\n";
2787
2788        if (-s "$projectroot/$project/README.html") {
2789                if (open my $fd, "$projectroot/$project/README.html") {
2790                        print "<div class=\"title\">readme</div>\n";
2791                        print $_ while (<$fd>);
2792                        close $fd;
2793                }
2794        }
2795
2796        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2797                git_get_head_hash($project), "--"
2798                or die_error(undef, "Open git-rev-list failed");
2799        my @revlist = map { chomp; $_ } <$fd>;
2800        close $fd;
2801        git_print_header_div('shortlog');
2802        git_shortlog_body(\@revlist, 0, 15, $refs,
2803                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2804
2805        if (@taglist) {
2806                git_print_header_div('tags');
2807                git_tags_body(\@taglist, 0, 15,
2808                              $cgi->a({-href => href(action=>"tags")}, "..."));
2809        }
2810
2811        if (@headlist) {
2812                git_print_header_div('heads');
2813                git_heads_body(\@headlist, $head, 0, 15,
2814                               $cgi->a({-href => href(action=>"heads")}, "..."));
2815        }
2816
2817        if (@forklist) {
2818                git_print_header_div('forks');
2819                git_project_list_body(\@forklist, undef, 0, 15,
2820                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2821                                      'noheader');
2822        }
2823
2824        git_footer_html();
2825}
2826
2827sub git_tag {
2828        my $head = git_get_head_hash($project);
2829        git_header_html();
2830        git_print_page_nav('','', $head,undef,$head);
2831        my %tag = parse_tag($hash);
2832        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2833        print "<div class=\"title_text\">\n" .
2834              "<table cellspacing=\"0\">\n" .
2835              "<tr>\n" .
2836              "<td>object</td>\n" .
2837              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2838                               $tag{'object'}) . "</td>\n" .
2839              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2840                                              $tag{'type'}) . "</td>\n" .
2841              "</tr>\n";
2842        if (defined($tag{'author'})) {
2843                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2844                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2845                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2846                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2847                        "</td></tr>\n";
2848        }
2849        print "</table>\n\n" .
2850              "</div>\n";
2851        print "<div class=\"page_body\">";
2852        my $comment = $tag{'comment'};
2853        foreach my $line (@$comment) {
2854                print esc_html($line) . "<br/>\n";
2855        }
2856        print "</div>\n";
2857        git_footer_html();
2858}
2859
2860sub git_blame2 {
2861        my $fd;
2862        my $ftype;
2863
2864        my ($have_blame) = gitweb_check_feature('blame');
2865        if (!$have_blame) {
2866                die_error('403 Permission denied', "Permission denied");
2867        }
2868        die_error('404 Not Found', "File name not defined") if (!$file_name);
2869        $hash_base ||= git_get_head_hash($project);
2870        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2871        my %co = parse_commit($hash_base)
2872                or die_error(undef, "Reading commit failed");
2873        if (!defined $hash) {
2874                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2875                        or die_error(undef, "Error looking up file");
2876        }
2877        $ftype = git_get_type($hash);
2878        if ($ftype !~ "blob") {
2879                die_error("400 Bad Request", "Object is not a blob");
2880        }
2881        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2882              $file_name, $hash_base)
2883                or die_error(undef, "Open git-blame failed");
2884        git_header_html();
2885        my $formats_nav =
2886                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2887                        "blob") .
2888                " | " .
2889                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2890                        "history") .
2891                " | " .
2892                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2893                        "HEAD");
2894        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2895        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2896        git_print_page_path($file_name, $ftype, $hash_base);
2897        my @rev_color = (qw(light2 dark2));
2898        my $num_colors = scalar(@rev_color);
2899        my $current_color = 0;
2900        my $last_rev;
2901        print <<HTML;
2902<div class="page_body">
2903<table class="blame">
2904<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2905HTML
2906        my %metainfo = ();
2907        while (1) {
2908                $_ = <$fd>;
2909                last unless defined $_;
2910                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2911                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2912                if (!exists $metainfo{$full_rev}) {
2913                        $metainfo{$full_rev} = {};
2914                }
2915                my $meta = $metainfo{$full_rev};
2916                while (<$fd>) {
2917                        last if (s/^\t//);
2918                        if (/^(\S+) (.*)$/) {
2919                                $meta->{$1} = $2;
2920                        }
2921                }
2922                my $data = $_;
2923                my $rev = substr($full_rev, 0, 8);
2924                my $author = $meta->{'author'};
2925                my %date = parse_date($meta->{'author-time'},
2926                                      $meta->{'author-tz'});
2927                my $date = $date{'iso-tz'};
2928                if ($group_size) {
2929                        $current_color = ++$current_color % $num_colors;
2930                }
2931                print "<tr class=\"$rev_color[$current_color]\">\n";
2932                if ($group_size) {
2933                        print "<td class=\"sha1\"";
2934                        print " title=\"". esc_html($author) . ", $date\"";
2935                        print " rowspan=\"$group_size\"" if ($group_size > 1);
2936                        print ">";
2937                        print $cgi->a({-href => href(action=>"commit",
2938                                                     hash=>$full_rev,
2939                                                     file_name=>$file_name)},
2940                                      esc_html($rev));
2941                        print "</td>\n";
2942                }
2943                my $blamed = href(action => 'blame',
2944                                  file_name => $meta->{'filename'},
2945                                  hash_base => $full_rev);
2946                print "<td class=\"linenr\">";
2947                print $cgi->a({ -href => "$blamed#l$orig_lineno",
2948                                -id => "l$lineno",
2949                                -class => "linenr" },
2950                              esc_html($lineno));
2951                print "</td>";
2952                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2953                print "</tr>\n";
2954        }
2955        print "</table>\n";
2956        print "</div>";
2957        close $fd
2958                or print "Reading blob failed\n";
2959        git_footer_html();
2960}
2961
2962sub git_blame {
2963        my $fd;
2964
2965        my ($have_blame) = gitweb_check_feature('blame');
2966        if (!$have_blame) {
2967                die_error('403 Permission denied', "Permission denied");
2968        }
2969        die_error('404 Not Found', "File name not defined") if (!$file_name);
2970        $hash_base ||= git_get_head_hash($project);
2971        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2972        my %co = parse_commit($hash_base)
2973                or die_error(undef, "Reading commit failed");
2974        if (!defined $hash) {
2975                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2976                        or die_error(undef, "Error lookup file");
2977        }
2978        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2979                or die_error(undef, "Open git-annotate failed");
2980        git_header_html();
2981        my $formats_nav =
2982                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2983                        "blob") .
2984                " | " .
2985                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2986                        "history") .
2987                " | " .
2988                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2989                        "HEAD");
2990        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2991        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2992        git_print_page_path($file_name, 'blob', $hash_base);
2993        print "<div class=\"page_body\">\n";
2994        print <<HTML;
2995<table class="blame">
2996  <tr>
2997    <th>Commit</th>
2998    <th>Age</th>
2999    <th>Author</th>
3000    <th>Line</th>
3001    <th>Data</th>
3002  </tr>
3003HTML
3004        my @line_class = (qw(light dark));
3005        my $line_class_len = scalar (@line_class);
3006        my $line_class_num = $#line_class;
3007        while (my $line = <$fd>) {
3008                my $long_rev;
3009                my $short_rev;
3010                my $author;
3011                my $time;
3012                my $lineno;
3013                my $data;
3014                my $age;
3015                my $age_str;
3016                my $age_class;
3017
3018                chomp $line;
3019                $line_class_num = ($line_class_num + 1) % $line_class_len;
3020
3021                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3022                        $long_rev = $1;
3023                        $author   = $2;
3024                        $time     = $3;
3025                        $lineno   = $4;
3026                        $data     = $5;
3027                } else {
3028                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3029                        next;
3030                }
3031                $short_rev  = substr ($long_rev, 0, 8);
3032                $age        = time () - $time;
3033                $age_str    = age_string ($age);
3034                $age_str    =~ s/ /&nbsp;/g;
3035                $age_class  = age_class($age);
3036                $author     = esc_html ($author);
3037                $author     =~ s/ /&nbsp;/g;
3038
3039                $data = untabify($data);
3040                $data = esc_html ($data);
3041
3042                print <<HTML;
3043  <tr class="$line_class[$line_class_num]">
3044    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3045    <td class="$age_class">$age_str</td>
3046    <td>$author</td>
3047    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3048    <td class="pre">$data</td>
3049  </tr>
3050HTML
3051        } # while (my $line = <$fd>)
3052        print "</table>\n\n";
3053        close $fd
3054                or print "Reading blob failed.\n";
3055        print "</div>";
3056        git_footer_html();
3057}
3058
3059sub git_tags {
3060        my $head = git_get_head_hash($project);
3061        git_header_html();
3062        git_print_page_nav('','', $head,undef,$head);
3063        git_print_header_div('summary', $project);
3064
3065        my @tagslist = git_get_tags_list();
3066        if (@tagslist) {
3067                git_tags_body(\@tagslist);
3068        }
3069        git_footer_html();
3070}
3071
3072sub git_heads {
3073        my $head = git_get_head_hash($project);
3074        git_header_html();
3075        git_print_page_nav('','', $head,undef,$head);
3076        git_print_header_div('summary', $project);
3077
3078        my @headslist = git_get_heads_list();
3079        if (@headslist) {
3080                git_heads_body(\@headslist, $head);
3081        }
3082        git_footer_html();
3083}
3084
3085sub git_blob_plain {
3086        my $expires;
3087
3088        if (!defined $hash) {
3089                if (defined $file_name) {
3090                        my $base = $hash_base || git_get_head_hash($project);
3091                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3092                                or die_error(undef, "Error lookup file");
3093                } else {
3094                        die_error(undef, "No file name defined");
3095                }
3096        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3097                # blobs defined by non-textual hash id's can be cached
3098                $expires = "+1d";
3099        }
3100
3101        my $type = shift;
3102        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3103                or die_error(undef, "Couldn't cat $file_name, $hash");
3104
3105        $type ||= blob_mimetype($fd, $file_name);
3106
3107        # save as filename, even when no $file_name is given
3108        my $save_as = "$hash";
3109        if (defined $file_name) {
3110                $save_as = $file_name;
3111        } elsif ($type =~ m/^text\//) {
3112                $save_as .= '.txt';
3113        }
3114
3115        print $cgi->header(
3116                -type => "$type",
3117                -expires=>$expires,
3118                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3119        undef $/;
3120        binmode STDOUT, ':raw';
3121        print <$fd>;
3122        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3123        $/ = "\n";
3124        close $fd;
3125}
3126
3127sub git_blob {
3128        my $expires;
3129
3130        if (!defined $hash) {
3131                if (defined $file_name) {
3132                        my $base = $hash_base || git_get_head_hash($project);
3133                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3134                                or die_error(undef, "Error lookup file");
3135                } else {
3136                        die_error(undef, "No file name defined");
3137                }
3138        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3139                # blobs defined by non-textual hash id's can be cached
3140                $expires = "+1d";
3141        }
3142
3143        my ($have_blame) = gitweb_check_feature('blame');
3144        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3145                or die_error(undef, "Couldn't cat $file_name, $hash");
3146        my $mimetype = blob_mimetype($fd, $file_name);
3147        if ($mimetype !~ m/^text\//) {
3148                close $fd;
3149                return git_blob_plain($mimetype);
3150        }
3151        git_header_html(undef, $expires);
3152        my $formats_nav = '';
3153        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3154                if (defined $file_name) {
3155                        if ($have_blame) {
3156                                $formats_nav .=
3157                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3158                                                               hash=>$hash, file_name=>$file_name)},
3159                                                "blame") .
3160                                        " | ";
3161                        }
3162                        $formats_nav .=
3163                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3164                                                       hash=>$hash, file_name=>$file_name)},
3165                                        "history") .
3166                                " | " .
3167                                $cgi->a({-href => href(action=>"blob_plain",
3168                                                       hash=>$hash, file_name=>$file_name)},
3169                                        "raw") .
3170                                " | " .
3171                                $cgi->a({-href => href(action=>"blob",
3172                                                       hash_base=>"HEAD", file_name=>$file_name)},
3173                                        "HEAD");
3174                } else {
3175                        $formats_nav .=
3176                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3177                }
3178                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3179                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3180        } else {
3181                print "<div class=\"page_nav\">\n" .
3182                      "<br/><br/></div>\n" .
3183                      "<div class=\"title\">$hash</div>\n";
3184        }
3185        git_print_page_path($file_name, "blob", $hash_base);
3186        print "<div class=\"page_body\">\n";
3187        my $nr;
3188        while (my $line = <$fd>) {
3189                chomp $line;
3190                $nr++;
3191                $line = untabify($line);
3192                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3193                       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3194        }
3195        close $fd
3196                or print "Reading blob failed.\n";
3197        print "</div>";
3198        git_footer_html();
3199}
3200
3201sub git_tree {
3202        my $have_snapshot = gitweb_have_snapshot();
3203
3204        if (!defined $hash_base) {
3205                $hash_base = "HEAD";
3206        }
3207        if (!defined $hash) {
3208                if (defined $file_name) {
3209                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3210                } else {
3211                        $hash = $hash_base;
3212                }
3213        }
3214        $/ = "\0";
3215        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3216                or die_error(undef, "Open git-ls-tree failed");
3217        my @entries = map { chomp; $_ } <$fd>;
3218        close $fd or die_error(undef, "Reading tree failed");
3219        $/ = "\n";
3220
3221        my $refs = git_get_references();
3222        my $ref = format_ref_marker($refs, $hash_base);
3223        git_header_html();
3224        my $basedir = '';
3225        my ($have_blame) = gitweb_check_feature('blame');
3226        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3227                my @views_nav = ();
3228                if (defined $file_name) {
3229                        push @views_nav,
3230                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3231                                                       hash=>$hash, file_name=>$file_name)},
3232                                        "history"),
3233                                $cgi->a({-href => href(action=>"tree",
3234                                                       hash_base=>"HEAD", file_name=>$file_name)},
3235                                        "HEAD"),
3236                }
3237                if ($have_snapshot) {
3238                        # FIXME: Should be available when we have no hash base as well.
3239                        push @views_nav,
3240                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3241                                        "snapshot");
3242                }
3243                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3244                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3245        } else {
3246                undef $hash_base;
3247                print "<div class=\"page_nav\">\n";
3248                print "<br/><br/></div>\n";
3249                print "<div class=\"title\">$hash</div>\n";
3250        }
3251        if (defined $file_name) {
3252                $basedir = $file_name;
3253                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3254                        $basedir .= '/';
3255                }
3256        }
3257        git_print_page_path($file_name, 'tree', $hash_base);
3258        print "<div class=\"page_body\">\n";
3259        print "<table cellspacing=\"0\">\n";
3260        my $alternate = 1;
3261        # '..' (top directory) link if possible
3262        if (defined $hash_base &&
3263            defined $file_name && $file_name =~ m![^/]+$!) {
3264                if ($alternate) {
3265                        print "<tr class=\"dark\">\n";
3266                } else {
3267                        print "<tr class=\"light\">\n";
3268                }
3269                $alternate ^= 1;
3270
3271                my $up = $file_name;
3272                $up =~ s!/?[^/]+$!!;
3273                undef $up unless $up;
3274                # based on git_print_tree_entry
3275                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3276                print '<td class="list">';
3277                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3278                                             file_name=>$up)},
3279                              "..");
3280                print "</td>\n";
3281                print "<td class=\"link\"></td>\n";
3282
3283                print "</tr>\n";
3284        }
3285        foreach my $line (@entries) {
3286                my %t = parse_ls_tree_line($line, -z => 1);
3287
3288                if ($alternate) {
3289                        print "<tr class=\"dark\">\n";
3290                } else {
3291                        print "<tr class=\"light\">\n";
3292                }
3293                $alternate ^= 1;
3294
3295                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3296
3297                print "</tr>\n";
3298        }
3299        print "</table>\n" .
3300              "</div>";
3301        git_footer_html();
3302}
3303
3304sub git_snapshot {
3305        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3306        my $have_snapshot = (defined $ctype && defined $suffix);
3307        if (!$have_snapshot) {
3308                die_error('403 Permission denied', "Permission denied");
3309        }
3310
3311        if (!defined $hash) {
3312                $hash = git_get_head_hash($project);
3313        }
3314
3315        my $filename = basename($project) . "-$hash.tar.$suffix";
3316
3317        print $cgi->header(
3318                -type => 'application/x-tar',
3319                -content_encoding => $ctype,
3320                -content_disposition => 'inline; filename="' . "$filename" . '"',
3321                -status => '200 OK');
3322
3323        my $git = git_cmd_str();
3324        my $name = $project;
3325        $name =~ s/\047/\047\\\047\047/g;
3326        open my $fd, "-|",
3327        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3328                or die_error(undef, "Execute git-tar-tree failed.");
3329        binmode STDOUT, ':raw';
3330        print <$fd>;
3331        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3332        close $fd;
3333
3334}
3335
3336sub git_log {
3337        my $head = git_get_head_hash($project);
3338        if (!defined $hash) {
3339                $hash = $head;
3340        }
3341        if (!defined $page) {
3342                $page = 0;
3343        }
3344        my $refs = git_get_references();
3345
3346        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3347        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3348                or die_error(undef, "Open git-rev-list failed");
3349        my @revlist = map { chomp; $_ } <$fd>;
3350        close $fd;
3351
3352        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3353
3354        git_header_html();
3355        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3356
3357        if (!@revlist) {
3358                my %co = parse_commit($hash);
3359
3360                git_print_header_div('summary', $project);
3361                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3362        }
3363        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3364                my $commit = $revlist[$i];
3365                my $ref = format_ref_marker($refs, $commit);
3366                my %co = parse_commit($commit);
3367                next if !%co;
3368                my %ad = parse_date($co{'author_epoch'});
3369                git_print_header_div('commit',
3370                               "<span class=\"age\">$co{'age_string'}</span>" .
3371                               esc_html($co{'title'}) . $ref,
3372                               $commit);
3373                print "<div class=\"title_text\">\n" .
3374                      "<div class=\"log_link\">\n" .
3375                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3376                      " | " .
3377                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3378                      " | " .
3379                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3380                      "<br/>\n" .
3381                      "</div>\n" .
3382                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3383                      "</div>\n";
3384
3385                print "<div class=\"log_body\">\n";
3386                git_print_log($co{'comment'}, -final_empty_line=> 1);
3387                print "</div>\n";
3388        }
3389        git_footer_html();
3390}
3391
3392sub git_commit {
3393        my %co = parse_commit($hash);
3394        if (!%co) {
3395                die_error(undef, "Unknown commit object");
3396        }
3397        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3398        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3399
3400        my $parent = $co{'parent'};
3401        if (!defined $parent) {
3402                $parent = "--root";
3403        }
3404        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3405                @diff_opts, $parent, $hash, "--"
3406                or die_error(undef, "Open git-diff-tree failed");
3407        my @difftree = map { chomp; $_ } <$fd>;
3408        close $fd or die_error(undef, "Reading git-diff-tree failed");
3409
3410        # non-textual hash id's can be cached
3411        my $expires;
3412        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3413                $expires = "+1d";
3414        }
3415        my $refs = git_get_references();
3416        my $ref = format_ref_marker($refs, $co{'id'});
3417
3418        my $have_snapshot = gitweb_have_snapshot();
3419
3420        my @views_nav = ();
3421        if (defined $file_name && defined $co{'parent'}) {
3422                push @views_nav,
3423                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3424                                "blame");
3425        }
3426        git_header_html(undef, $expires);
3427        git_print_page_nav('commit', '',
3428                           $hash, $co{'tree'}, $hash,
3429                           join (' | ', @views_nav));
3430
3431        if (defined $co{'parent'}) {
3432                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3433        } else {
3434                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3435        }
3436        print "<div class=\"title_text\">\n" .
3437              "<table cellspacing=\"0\">\n";
3438        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3439              "<tr>" .
3440              "<td></td><td> $ad{'rfc2822'}";
3441        if ($ad{'hour_local'} < 6) {
3442                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3443                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3444        } else {
3445                printf(" (%02d:%02d %s)",
3446                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3447        }
3448        print "</td>" .
3449              "</tr>\n";
3450        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3451        print "<tr><td></td><td> $cd{'rfc2822'}" .
3452              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3453              "</td></tr>\n";
3454        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3455        print "<tr>" .
3456              "<td>tree</td>" .
3457              "<td class=\"sha1\">" .
3458              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3459                       class => "list"}, $co{'tree'}) .
3460              "</td>" .
3461              "<td class=\"link\">" .
3462              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3463                      "tree");
3464        if ($have_snapshot) {
3465                print " | " .
3466                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3467        }
3468        print "</td>" .
3469              "</tr>\n";
3470        my $parents = $co{'parents'};
3471        foreach my $par (@$parents) {
3472                print "<tr>" .
3473                      "<td>parent</td>" .
3474                      "<td class=\"sha1\">" .
3475                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3476                               class => "list"}, $par) .
3477                      "</td>" .
3478                      "<td class=\"link\">" .
3479                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3480                      " | " .
3481                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3482                      "</td>" .
3483                      "</tr>\n";
3484        }
3485        print "</table>".
3486              "</div>\n";
3487
3488        print "<div class=\"page_body\">\n";
3489        git_print_log($co{'comment'});
3490        print "</div>\n";
3491
3492        git_difftree_body(\@difftree, $hash, $parent);
3493
3494        git_footer_html();
3495}
3496
3497sub git_blobdiff {
3498        my $format = shift || 'html';
3499
3500        my $fd;
3501        my @difftree;
3502        my %diffinfo;
3503        my $expires;
3504
3505        # preparing $fd and %diffinfo for git_patchset_body
3506        # new style URI
3507        if (defined $hash_base && defined $hash_parent_base) {
3508                if (defined $file_name) {
3509                        # read raw output
3510                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3511                                $hash_parent_base, $hash_base,
3512                                "--", $file_name
3513                                or die_error(undef, "Open git-diff-tree failed");
3514                        @difftree = map { chomp; $_ } <$fd>;
3515                        close $fd
3516                                or die_error(undef, "Reading git-diff-tree failed");
3517                        @difftree
3518                                or die_error('404 Not Found', "Blob diff not found");
3519
3520                } elsif (defined $hash &&
3521                         $hash =~ /[0-9a-fA-F]{40}/) {
3522                        # try to find filename from $hash
3523
3524                        # read filtered raw output
3525                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3526                                $hash_parent_base, $hash_base, "--"
3527                                or die_error(undef, "Open git-diff-tree failed");
3528                        @difftree =
3529                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3530                                # $hash == to_id
3531                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3532                                map { chomp; $_ } <$fd>;
3533                        close $fd
3534                                or die_error(undef, "Reading git-diff-tree failed");
3535                        @difftree
3536                                or die_error('404 Not Found', "Blob diff not found");
3537
3538                } else {
3539                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3540                }
3541
3542                if (@difftree > 1) {
3543                        die_error('404 Not Found', "Ambiguous blob diff specification");
3544                }
3545
3546                %diffinfo = parse_difftree_raw_line($difftree[0]);
3547                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3548                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3549
3550                $hash_parent ||= $diffinfo{'from_id'};
3551                $hash        ||= $diffinfo{'to_id'};
3552
3553                # non-textual hash id's can be cached
3554                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3555                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3556                        $expires = '+1d';
3557                }
3558
3559                # open patch output
3560                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3561                        '-p', $hash_parent_base, $hash_base,
3562                        "--", $file_name
3563                        or die_error(undef, "Open git-diff-tree failed");
3564        }
3565
3566        # old/legacy style URI
3567        if (!%diffinfo && # if new style URI failed
3568            defined $hash && defined $hash_parent) {
3569                # fake git-diff-tree raw output
3570                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3571                $diffinfo{'from_id'} = $hash_parent;
3572                $diffinfo{'to_id'}   = $hash;
3573                if (defined $file_name) {
3574                        if (defined $file_parent) {
3575                                $diffinfo{'status'} = '2';
3576                                $diffinfo{'from_file'} = $file_parent;
3577                                $diffinfo{'to_file'}   = $file_name;
3578                        } else { # assume not renamed
3579                                $diffinfo{'status'} = '1';
3580                                $diffinfo{'from_file'} = $file_name;
3581                                $diffinfo{'to_file'}   = $file_name;
3582                        }
3583                } else { # no filename given
3584                        $diffinfo{'status'} = '2';
3585                        $diffinfo{'from_file'} = $hash_parent;
3586                        $diffinfo{'to_file'}   = $hash;
3587                }
3588
3589                # non-textual hash id's can be cached
3590                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3591                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3592                        $expires = '+1d';
3593                }
3594
3595                # open patch output
3596                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3597                        $hash_parent, $hash, "--"
3598                        or die_error(undef, "Open git-diff failed");
3599        } else  {
3600                die_error('404 Not Found', "Missing one of the blob diff parameters")
3601                        unless %diffinfo;
3602        }
3603
3604        # header
3605        if ($format eq 'html') {
3606                my $formats_nav =
3607                        $cgi->a({-href => href(action=>"blobdiff_plain",
3608                                               hash=>$hash, hash_parent=>$hash_parent,
3609                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3610                                               file_name=>$file_name, file_parent=>$file_parent)},
3611                                "raw");
3612                git_header_html(undef, $expires);
3613                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3614                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3615                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3616                } else {
3617                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3618                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3619                }
3620                if (defined $file_name) {
3621                        git_print_page_path($file_name, "blob", $hash_base);
3622                } else {
3623                        print "<div class=\"page_path\"></div>\n";
3624                }
3625
3626        } elsif ($format eq 'plain') {
3627                print $cgi->header(
3628                        -type => 'text/plain',
3629                        -charset => 'utf-8',
3630                        -expires => $expires,
3631                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3632
3633                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3634
3635        } else {
3636                die_error(undef, "Unknown blobdiff format");
3637        }
3638
3639        # patch
3640        if ($format eq 'html') {
3641                print "<div class=\"page_body\">\n";
3642
3643                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3644                close $fd;
3645
3646                print "</div>\n"; # class="page_body"
3647                git_footer_html();
3648
3649        } else {
3650                while (my $line = <$fd>) {
3651                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3652                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3653
3654                        print $line;
3655
3656                        last if $line =~ m!^\+\+\+!;
3657                }
3658                local $/ = undef;
3659                print <$fd>;
3660                close $fd;
3661        }
3662}
3663
3664sub git_blobdiff_plain {
3665        git_blobdiff('plain');
3666}
3667
3668sub git_commitdiff {
3669        my $format = shift || 'html';
3670        my %co = parse_commit($hash);
3671        if (!%co) {
3672                die_error(undef, "Unknown commit object");
3673        }
3674
3675        # we need to prepare $formats_nav before any parameter munging
3676        my $formats_nav;
3677        if ($format eq 'html') {
3678                $formats_nav =
3679                        $cgi->a({-href => href(action=>"commitdiff_plain",
3680                                               hash=>$hash, hash_parent=>$hash_parent)},
3681                                "raw");
3682
3683                if (defined $hash_parent) {
3684                        # commitdiff with two commits given
3685                        my $hash_parent_short = $hash_parent;
3686                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3687                                $hash_parent_short = substr($hash_parent, 0, 7);
3688                        }
3689                        $formats_nav .=
3690                                ' (from: ' .
3691                                $cgi->a({-href => href(action=>"commitdiff",
3692                                                       hash=>$hash_parent)},
3693                                        esc_html($hash_parent_short)) .
3694                                ')';
3695                } elsif (!$co{'parent'}) {
3696                        # --root commitdiff
3697                        $formats_nav .= ' (initial)';
3698                } elsif (scalar @{$co{'parents'}} == 1) {
3699                        # single parent commit
3700                        $formats_nav .=
3701                                ' (parent: ' .
3702                                $cgi->a({-href => href(action=>"commitdiff",
3703                                                       hash=>$co{'parent'})},
3704                                        esc_html(substr($co{'parent'}, 0, 7))) .
3705                                ')';
3706                } else {
3707                        # merge commit
3708                        $formats_nav .=
3709                                ' (merge: ' .
3710                                join(' ', map {
3711                                        $cgi->a({-href => href(action=>"commitdiff",
3712                                                               hash=>$_)},
3713                                                esc_html(substr($_, 0, 7)));
3714                                } @{$co{'parents'}} ) .
3715                                ')';
3716                }
3717        }
3718
3719        if (!defined $hash_parent) {
3720                $hash_parent = $co{'parent'} || '--root';
3721        }
3722
3723        # read commitdiff
3724        my $fd;
3725        my @difftree;
3726        if ($format eq 'html') {
3727                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3728                        "--no-commit-id", "--patch-with-raw", "--full-index",
3729                        $hash_parent, $hash, "--"
3730                        or die_error(undef, "Open git-diff-tree failed");
3731
3732                while (chomp(my $line = <$fd>)) {
3733                        # empty line ends raw part of diff-tree output
3734                        last unless $line;
3735                        push @difftree, $line;
3736                }
3737
3738        } elsif ($format eq 'plain') {
3739                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3740                        '-p', $hash_parent, $hash, "--"
3741                        or die_error(undef, "Open git-diff-tree failed");
3742
3743        } else {
3744                die_error(undef, "Unknown commitdiff format");
3745        }
3746
3747        # non-textual hash id's can be cached
3748        my $expires;
3749        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3750                $expires = "+1d";
3751        }
3752
3753        # write commit message
3754        if ($format eq 'html') {
3755                my $refs = git_get_references();
3756                my $ref = format_ref_marker($refs, $co{'id'});
3757
3758                git_header_html(undef, $expires);
3759                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3760                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3761                git_print_authorship(\%co);
3762                print "<div class=\"page_body\">\n";
3763                if (@{$co{'comment'}} > 1) {
3764                        print "<div class=\"log\">\n";
3765                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3766                        print "</div>\n"; # class="log"
3767                }
3768
3769        } elsif ($format eq 'plain') {
3770                my $refs = git_get_references("tags");
3771                my $tagname = git_get_rev_name_tags($hash);
3772                my $filename = basename($project) . "-$hash.patch";
3773
3774                print $cgi->header(
3775                        -type => 'text/plain',
3776                        -charset => 'utf-8',
3777                        -expires => $expires,
3778                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3779                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3780                print <<TEXT;
3781From: $co{'author'}
3782Date: $ad{'rfc2822'} ($ad{'tz_local'})
3783Subject: $co{'title'}
3784TEXT
3785                print "X-Git-Tag: $tagname\n" if $tagname;
3786                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3787
3788                foreach my $line (@{$co{'comment'}}) {
3789                        print "$line\n";
3790                }
3791                print "---\n\n";
3792        }
3793
3794        # write patch
3795        if ($format eq 'html') {
3796                git_difftree_body(\@difftree, $hash, $hash_parent);
3797                print "<br/>\n";
3798
3799                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3800                close $fd;
3801                print "</div>\n"; # class="page_body"
3802                git_footer_html();
3803
3804        } elsif ($format eq 'plain') {
3805                local $/ = undef;
3806                print <$fd>;
3807                close $fd
3808                        or print "Reading git-diff-tree failed\n";
3809        }
3810}
3811
3812sub git_commitdiff_plain {
3813        git_commitdiff('plain');
3814}
3815
3816sub git_history {
3817        if (!defined $hash_base) {
3818                $hash_base = git_get_head_hash($project);
3819        }
3820        if (!defined $page) {
3821                $page = 0;
3822        }
3823        my $ftype;
3824        my %co = parse_commit($hash_base);
3825        if (!%co) {
3826                die_error(undef, "Unknown commit object");
3827        }
3828
3829        my $refs = git_get_references();
3830        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3831
3832        if (!defined $hash && defined $file_name) {
3833                $hash = git_get_hash_by_path($hash_base, $file_name);
3834        }
3835        if (defined $hash) {
3836                $ftype = git_get_type($hash);
3837        }
3838
3839        open my $fd, "-|",
3840                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3841                        or die_error(undef, "Open git-rev-list-failed");
3842        my @revlist = map { chomp; $_ } <$fd>;
3843        close $fd
3844                or die_error(undef, "Reading git-rev-list failed");
3845
3846        my $paging_nav = '';
3847        if ($page > 0) {
3848                $paging_nav .=
3849                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3850                                               file_name=>$file_name)},
3851                                "first");
3852                $paging_nav .= " &sdot; " .
3853                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3854                                               file_name=>$file_name, page=>$page-1),
3855                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3856        } else {
3857                $paging_nav .= "first";
3858                $paging_nav .= " &sdot; prev";
3859        }
3860        if ($#revlist >= (100 * ($page+1)-1)) {
3861                $paging_nav .= " &sdot; " .
3862                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3863                                               file_name=>$file_name, page=>$page+1),
3864                                 -accesskey => "n", -title => "Alt-n"}, "next");
3865        } else {
3866                $paging_nav .= " &sdot; next";
3867        }
3868        my $next_link = '';
3869        if ($#revlist >= (100 * ($page+1)-1)) {
3870                $next_link =
3871                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3872                                               file_name=>$file_name, page=>$page+1),
3873                                 -title => "Alt-n"}, "next");
3874        }
3875
3876        git_header_html();
3877        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3878        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3879        git_print_page_path($file_name, $ftype, $hash_base);
3880
3881        git_history_body(\@revlist, ($page * 100), $#revlist,
3882                         $refs, $hash_base, $ftype, $next_link);
3883
3884        git_footer_html();
3885}
3886
3887sub git_search {
3888        if (!defined $searchtext) {
3889                die_error(undef, "Text field empty");
3890        }
3891        if (!defined $hash) {
3892                $hash = git_get_head_hash($project);
3893        }
3894        my %co = parse_commit($hash);
3895        if (!%co) {
3896                die_error(undef, "Unknown commit object");
3897        }
3898
3899        $searchtype ||= 'commit';
3900        if ($searchtype eq 'pickaxe') {
3901                # pickaxe may take all resources of your box and run for several minutes
3902                # with every query - so decide by yourself how public you make this feature
3903                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3904                if (!$have_pickaxe) {
3905                        die_error('403 Permission denied', "Permission denied");
3906                }
3907        }
3908
3909        git_header_html();
3910        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3911        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3912
3913        print "<table cellspacing=\"0\">\n";
3914        my $alternate = 1;
3915        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3916                $/ = "\0";
3917                open my $fd, "-|", git_cmd(), "rev-list",
3918                        "--header", "--parents", $hash, "--"
3919                        or next;
3920                while (my $commit_text = <$fd>) {
3921                        if (!grep m/$searchtext/i, $commit_text) {
3922                                next;
3923                        }
3924                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3925                                next;
3926                        }
3927                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3928                                next;
3929                        }
3930                        my @commit_lines = split "\n", $commit_text;
3931                        my %co = parse_commit(undef, \@commit_lines);
3932                        if (!%co) {
3933                                next;
3934                        }
3935                        if ($alternate) {
3936                                print "<tr class=\"dark\">\n";
3937                        } else {
3938                                print "<tr class=\"light\">\n";
3939                        }
3940                        $alternate ^= 1;
3941                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3942                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3943                              "<td>" .
3944                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3945                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3946                        my $comment = $co{'comment'};
3947                        foreach my $line (@$comment) {
3948                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3949                                        my $lead = esc_html($1) || "";
3950                                        $lead = chop_str($lead, 30, 10);
3951                                        my $match = esc_html($2) || "";
3952                                        my $trail = esc_html($3) || "";
3953                                        $trail = chop_str($trail, 30, 10);
3954                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3955                                        print chop_str($text, 80, 5) . "<br/>\n";
3956                                }
3957                        }
3958                        print "</td>\n" .
3959                              "<td class=\"link\">" .
3960                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3961                              " | " .
3962                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3963                        print "</td>\n" .
3964                              "</tr>\n";
3965                }
3966                close $fd;
3967        }
3968
3969        if ($searchtype eq 'pickaxe') {
3970                $/ = "\n";
3971                my $git_command = git_cmd_str();
3972                open my $fd, "-|", "$git_command rev-list $hash | " .
3973                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3974                undef %co;
3975                my @files;
3976                while (my $line = <$fd>) {
3977                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3978                                my %set;
3979                                $set{'file'} = $6;
3980                                $set{'from_id'} = $3;
3981                                $set{'to_id'} = $4;
3982                                $set{'id'} = $set{'to_id'};
3983                                if ($set{'id'} =~ m/0{40}/) {
3984                                        $set{'id'} = $set{'from_id'};
3985                                }
3986                                if ($set{'id'} =~ m/0{40}/) {
3987                                        next;
3988                                }
3989                                push @files, \%set;
3990                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3991                                if (%co) {
3992                                        if ($alternate) {
3993                                                print "<tr class=\"dark\">\n";
3994                                        } else {
3995                                                print "<tr class=\"light\">\n";
3996                                        }
3997                                        $alternate ^= 1;
3998                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3999                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4000                                              "<td>" .
4001                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4002                                                      -class => "list subject"},
4003                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4004                                        while (my $setref = shift @files) {
4005                                                my %set = %$setref;
4006                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4007                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4008                                                              -class => "list"},
4009                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4010                                                      "<br/>\n";
4011                                        }
4012                                        print "</td>\n" .
4013                                              "<td class=\"link\">" .
4014                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4015                                              " | " .
4016                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4017                                        print "</td>\n" .
4018                                              "</tr>\n";
4019                                }
4020                                %co = parse_commit($1);
4021                        }
4022                }
4023                close $fd;
4024        }
4025        print "</table>\n";
4026        git_footer_html();
4027}
4028
4029sub git_search_help {
4030        git_header_html();
4031        git_print_page_nav('','', $hash,$hash,$hash);
4032        print <<EOT;
4033<dl>
4034<dt><b>commit</b></dt>
4035<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4036<dt><b>author</b></dt>
4037<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4038<dt><b>committer</b></dt>
4039<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4040EOT
4041        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4042        if ($have_pickaxe) {
4043                print <<EOT;
4044<dt><b>pickaxe</b></dt>
4045<dd>All commits that caused the string to appear or disappear from any file (changes that
4046added, removed or "modified" the string) will be listed. This search can take a while and
4047takes a lot of strain on the server, so please use it wisely.</dd>
4048EOT
4049        }
4050        print "</dl>\n";
4051        git_footer_html();
4052}
4053
4054sub git_shortlog {
4055        my $head = git_get_head_hash($project);
4056        if (!defined $hash) {
4057                $hash = $head;
4058        }
4059        if (!defined $page) {
4060                $page = 0;
4061        }
4062        my $refs = git_get_references();
4063
4064        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4065        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4066                or die_error(undef, "Open git-rev-list failed");
4067        my @revlist = map { chomp; $_ } <$fd>;
4068        close $fd;
4069
4070        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4071        my $next_link = '';
4072        if ($#revlist >= (100 * ($page+1)-1)) {
4073                $next_link =
4074                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4075                                 -title => "Alt-n"}, "next");
4076        }
4077
4078
4079        git_header_html();
4080        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4081        git_print_header_div('summary', $project);
4082
4083        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4084
4085        git_footer_html();
4086}
4087
4088## ......................................................................
4089## feeds (RSS, OPML)
4090
4091sub git_rss {
4092        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4093        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4094                git_get_head_hash($project), "--"
4095                or die_error(undef, "Open git-rev-list failed");
4096        my @revlist = map { chomp; $_ } <$fd>;
4097        close $fd or die_error(undef, "Reading git-rev-list failed");
4098        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4099        print <<XML;
4100<?xml version="1.0" encoding="utf-8"?>
4101<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4102<channel>
4103<title>$project $my_uri $my_url</title>
4104<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
4105<description>$project log</description>
4106<language>en</language>
4107XML
4108
4109        for (my $i = 0; $i <= $#revlist; $i++) {
4110                my $commit = $revlist[$i];
4111                my %co = parse_commit($commit);
4112                # we read 150, we always show 30 and the ones more recent than 48 hours
4113                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
4114                        last;
4115                }
4116                my %cd = parse_date($co{'committer_epoch'});
4117                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4118                        $co{'parent'}, $co{'id'}, "--"
4119                        or next;
4120                my @difftree = map { chomp; $_ } <$fd>;
4121                close $fd
4122                        or next;
4123                print "<item>\n" .
4124                      "<title>" .
4125                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
4126                      "</title>\n" .
4127                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
4128                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4129                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
4130                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
4131                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
4132                      "<content:encoded>" .
4133                      "<![CDATA[\n";
4134                my $comment = $co{'comment'};
4135                foreach my $line (@$comment) {
4136                        $line = to_utf8($line);
4137                        print "$line<br/>\n";
4138                }
4139                print "<br/>\n";
4140                foreach my $line (@difftree) {
4141                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
4142                                next;
4143                        }
4144                        my $file = esc_path(unquote($7));
4145                        $file = to_utf8($file);
4146                        print "$file<br/>\n";
4147                }
4148                print "]]>\n" .
4149                      "</content:encoded>\n" .
4150                      "</item>\n";
4151        }
4152        print "</channel></rss>";
4153}
4154
4155sub git_opml {
4156        my @list = git_get_projects_list();
4157
4158        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4159        print <<XML;
4160<?xml version="1.0" encoding="utf-8"?>
4161<opml version="1.0">
4162<head>
4163  <title>$site_name OPML Export</title>
4164</head>
4165<body>
4166<outline text="git RSS feeds">
4167XML
4168
4169        foreach my $pr (@list) {
4170                my %proj = %$pr;
4171                my $head = git_get_head_hash($proj{'path'});
4172                if (!defined $head) {
4173                        next;
4174                }
4175                $git_dir = "$projectroot/$proj{'path'}";
4176                my %co = parse_commit($head);
4177                if (!%co) {
4178                        next;
4179                }
4180
4181                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4182                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4183                my $html = "$my_url?p=$proj{'path'};a=summary";
4184                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4185        }
4186        print <<XML;
4187</outline>
4188</body>
4189</opml>
4190XML
4191}