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Annotation of cvsweb/cvsweb.cgi, Revision 3.167

3.55      knu         1: #!/usr/bin/perl -wT
1.1       jfieber     2: #
3.1       knu         3: # cvsweb - a CGI interface to CVS trees.
1.1       jfieber     4: #
3.12      knu         5: # Written in their spare time by
3.113     scop        6: #             Bill Fenner          <fenner@FreeBSD.org>   (original work)
                      7: # extended by Henner Zeller        <zeller@think.de>,
                      8: #             Henrik Nordstrom     <hno@hem.passagen.se>
                      9: #             Ken Coar             <coar@Apache.Org>
                     10: #             Dick Balaska         <dick@buckosoft.com>
                     11: #             Akinori MUSHA        <knu@FreeBSD.org>
                     12: #             Jens-Uwe Mager       <jum@helios.de>
                     13: #             Ville Skyttä         <scop@FreeBSD.org>
                     14: #             Vassilii Khachaturov <vassilii@tarunz.org>
3.1       knu        15: #
                     16: # Based on:
                     17: # * Bill Fenners cvsweb.cgi revision 1.28 available from:
3.5       knu        18: #   http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
1.1       jfieber    19: #
1.21      wosch      20: # Copyright (c) 1996-1998 Bill Fenner
3.1       knu        21: #           (c) 1998-1999 Henner Zeller
3.109     scop       22: #           (c) 1999      Henrik Nordstrom
                     23: #           (c) 2000-2002 Akinori MUSHA
3.148     scop       24: #           (c) 2002-2003 Ville Skyttä
1.21      wosch      25: # All rights reserved.
                     26: #
                     27: # Redistribution and use in source and binary forms, with or without
                     28: # modification, are permitted provided that the following conditions
                     29: # are met:
                     30: # 1. Redistributions of source code must retain the above copyright
                     31: #    notice, this list of conditions and the following disclaimer.
                     32: # 2. Redistributions in binary form must reproduce the above copyright
                     33: #    notice, this list of conditions and the following disclaimer in the
                     34: #    documentation and/or other materials provided with the distribution.
                     35: #
                     36: # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     37: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     38: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     39: # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     40: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     41: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     42: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     43: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     44: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     45: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     46: # SUCH DAMAGE.
                     47: #
3.87      knu        48: # $FreeBSD$
3.82      knu        49: # $Id: cvsweb.cgi,v 1.112 2001/07/24 13:03:16 hzeller Exp $
3.85      knu        50: # $Idaemons: /home/cvs/cvsweb/cvsweb.cgi,v 3.84 2001/10/07 20:50:10 knu Exp $
1.21      wosch      51: #
3.1       knu        52: ###
                     53:
3.138     scop       54: require 5.005_03;
3.55      knu        55:
3.1       knu        56: use strict;
1.21      wosch      57:
3.1       knu        58: use vars qw (
3.121     scop       59:   $VERSION
3.144     scop       60:   $config $allow_version_select
3.120     scop       61:   @CVSrepositories @CVSROOT %CVSROOT %CVSROOTdescr
                     62:   %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
                     63:   @DIFFTYPES %DIFFTYPES @LOGSORTKEYS %LOGSORTKEYS
3.129     scop       64:   %alltags %fileinfo %tags @branchnames %nameprinted
3.120     scop       65:   %symrev %revsym @allrevisions %date %author @revdisplayorder
3.152     scop       66:   @revisions %state %difflines %log %branchpoint @revorder $keywordsubstitution
3.120     scop       67:   $prcgi @prcategories $re_prcategories $prkeyword $re_prkeyword $mancgi
                     68:   $checkoutMagic $doCheckout $scriptname $scriptwhere
                     69:   $where $pathinfo $Browser $nofilelinks $maycompress
3.129     scop       70:   @stickyvars @unsafevars %funcline_regexp $is_mod_perl
3.120     scop       71:   $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
                     72:   %input $query $barequery $sortby $bydate $byrev $byauthor
                     73:   $bylog $byfile $defaultDiffType $logsort $cvstree $cvsroot
3.156     scop       74:   $charset $output_filter
3.132     scop       75:   $command_path %CMD $allow_compress $backicon $diricon $fileicon $graphicon
3.152     scop       76:   $fullname $newname $cvstreedefault $logo $defaulttitle $address $binfileicon
3.131     scop       77:   $long_intro $short_instruction $shortLogLen $show_author
3.129     scop       78:   $tablepadding $hr_breakable $showfunc $hr_ignwhite $hr_ignkeysubst
                     79:   $inputTextSize $mime_types $allow_annotate $allow_markup
3.120     scop       80:   $allow_log_extra $allow_dir_extra $allow_source_extra
3.132     scop       81:   $allow_cvsgraph $cvsgraph_config $use_java_script $open_extern_window
3.120     scop       82:   $extern_window_width $extern_window_height $edit_option_form
3.144     scop       83:   $show_subdir_lastmod $show_log_in_markup $preformat_in_markup
3.120     scop       84:   $tabstop $state $annTable $sel $curbranch @HideModules @ForbiddenFiles
3.163     scop       85:   $module $use_descriptions %descriptions @mytz $dwhere
3.139     scop       86:   $use_moddate $has_zlib $gzip_open $file_list_len
3.120     scop       87:   $allow_tar @tar_options @gzip_options @zip_options @cvs_options
3.166     scop       88:   @annotate_options @rcsdiff_options $LOG_FILESEPARATOR $LOG_REVSEPARATOR
3.165     scop       89:   $HTML_DOCTYPE $HTML_META $cssurl $CSS
3.148     scop       90:   $CvsWebMarkupRE $allow_enscript @enscript_options %enscript_types
3.156     scop       91:   $MimeTypes
3.1       knu        92: );
                     93:
3.125     scop       94: # TODO:
                     95: #   Maybe "use filetest 'access'" on perl >= 5.6 for better -X checks.
                     96: #($] >= 5.006) and eval "use filetest 'access'";
                     97:
3.165     scop       98: use Cwd                   qw(abs_path);
                     99: use File::Basename        qw();
                    100: use File::Spec::Functions qw(catdir catfile devnull tmpdir);
                    101: use File::Temp            qw(tempdir);
                    102: use IO::Pipe              qw();
                    103: use IPC::Open2            qw(open2);
                    104: use Time::Local           qw();
3.122     scop      105:
                    106: # -----------------------------------------------------------------------------
                    107:
                    108: # All global initialization that can be done in compile time should go to
                    109: # the BEGIN block.  Persistent environments, such as mod_perl, will benefit
                    110: # from this.
                    111:
                    112: BEGIN
                    113: {
                    114:   $VERSION = '3.0-dev';
                    115:
                    116:   $HTML_DOCTYPE =
                    117:     '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">';
                    118:
                    119:   $HTML_META = <<EOM;
                    120: <meta name="robots" content="nofollow">
                    121: <meta name="generator" content="FreeBSD-CVSweb $VERSION">
                    122: <meta http-equiv="Content-Script-Type" content="text/javascript">
                    123: <meta http-equiv="Content-Style-Type" content="text/css">
                    124: EOM
                    125:
                    126:   # Check if the zlib C library interface is installed, and if yes,
                    127:   # we can avoid using the extra gzip process.
                    128:   eval { require Compress::Zlib; };
                    129:   $has_zlib = !$@;
                    130:
3.156     scop      131:   # Use MIME::Types for MIME type lookups if it's available.
                    132:   eval {
                    133:     require MIME::Types;
                    134:     $MimeTypes = MIME::Types->new();
                    135:   };
                    136:   $MimeTypes = undef if $@;
                    137:
3.122     scop      138:   $is_mod_perl = defined($ENV{MOD_PERL});
                    139:
                    140:   $LOG_FILESEPARATOR = qr/^={77}$/o;
                    141:   $LOG_REVSEPARATOR  = qr/^-{28}$/o;
3.146     scop      142:
                    143:   $CvsWebMarkupRE = qr/^text\/(x-cvsweb|vnd\.viewcvs)-markup$/io;
3.122     scop      144: }
                    145:
                    146: # -----------------------------------------------------------------------------
                    147:
3.12      knu       148: sub printDiffSelect($);
3.37      knu       149: sub printDiffLinks($$);
                    150: sub printLogSortSelect($);
3.12      knu       151: sub findLastModifiedSubdirs(@);
3.36      knu       152: sub htmlify_sub(&$);
3.12      knu       153: sub htmlify($;$);
3.20      knu       154: sub spacedHtmlText($;$);
3.12      knu       155: sub link($$);
                    156: sub revcmp($$);
3.103     knu       157: sub fatal($$@);
3.12      knu       158: sub redirect($);
                    159: sub safeglob($);
3.58      knu       160: sub search_path($);
3.156     scop      161: sub getMimeType($;$);
3.24      knu       162: sub head($;$);
                    163: sub scan_directives(@);
3.86      knu       164: sub openOutputFilter();
3.133     scop      165: sub doAnnotate($);
3.12      knu       166: sub doCheckout($$);
3.132     scop      167: sub doGraph($);
3.167   ! scop      168: sub doEnscript($$$);
3.132     scop      169: sub doGraphView($);
3.163     scop      170: sub cvswebMarkup($$$;$);
3.12      knu       171: sub viewable($);
                    172: sub doDiff($$$$$$);
                    173: sub getDirLogs($$@);
                    174: sub readLog($;$);
                    175: sub printLog($;$);
                    176: sub doLog($);
                    177: sub flush_diff_rows($$$$);
3.144     scop      178: sub human_readable_diff($$);
3.163     scop      179: sub navigateHeader($$$$$;$);
3.12      knu       180: sub plural_write($$);
                    181: sub readableTime($$);
                    182: sub clickablePath($$);
                    183: sub chooseCVSRoot();
                    184: sub chooseMirror();
                    185: sub fileSortCmp();
                    186: sub download_url($$;$);
                    187: sub download_link($$$;$);
3.132     scop      188: sub graph_link($$;$);
3.140     scop      189: sub toggleQuery($;$);
3.12      knu       190: sub urlencode($);
3.35      knu       191: sub htmlquote($);
3.36      knu       192: sub htmlunquote($);
3.48      knu       193: sub hrefquote($);
3.163     scop      194: sub http_header(;$$);
                    195: sub html_header($;$);
3.12      knu       196: sub html_footer();
                    197: sub link_tags($);
3.81      knu       198: sub forbidden_file($);
3.12      knu       199: sub forbidden_module($);
                    200:
3.1       knu       201: ##### Start of Configuration Area ########
3.122     scop      202:
3.142     scop      203: # Get rid of unsafe environment vars.  Don't do this in BEGIN...
                    204: delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
3.59      knu       205:
3.122     scop      206: my ($mydir) = (File::Basename::dirname($0) =~ /(.*)/);    # untaint
3.58      knu       207:
3.12      knu       208: # == EDIT this ==
3.28      knu       209: # Locations to search for user configuration, in order:
3.165     scop      210: for (catfile($mydir, 'cvsweb.conf'), '/usr/local/etc/cvsweb/cvsweb.conf') {
                    211:   if (-r $_) {
3.120     scop      212:     $config = $_;
                    213:     last;
                    214:   }
3.11      knu       215: }
3.122     scop      216: undef $mydir;
3.1       knu       217:
                    218: # == Configuration defaults ==
                    219: # Defaults for configuration variables that shouldn't need
                    220: # to be configured..
                    221: $allow_version_select = 1;
3.120     scop      222: $allow_log_extra      = 1;
3.1       knu       223:
                    224: ##### End of Configuration Area   ########
                    225:
                    226: ######## Configuration variables #########
                    227: # These are defined to allow checking with perl -cw
3.120     scop      228:
3.80      knu       229: @CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
3.129     scop      230:   %MTYPES = %tags = %alltags = %fileinfo = ();
3.120     scop      231:
3.129     scop      232: $cvstreedefault = $logo = $defaulttitle =
3.120     scop      233:   $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
3.131     scop      234:   $tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
3.129     scop      235:   $hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
3.120     scop      236:   $allow_markup = $use_java_script = $open_extern_window =
                    237:   $extern_window_width = $extern_window_height = $edit_option_form =
3.144     scop      238:   $show_subdir_lastmod = $show_log_in_markup =
3.163     scop      239:   $tabstop = $use_moddate = $gzip_open = undef;
3.32      knu       240:
3.37      knu       241: @DIFFTYPES = qw(h H u c s);
                    242: @DIFFTYPES{@DIFFTYPES} = (
3.120     scop      243:   {
                    244:     'descr'   => 'colored',
                    245:     'opts'    => ['-u'],
                    246:     'colored' => 1,
                    247:   },
                    248:   {
                    249:     'descr'   => 'long colored',
                    250:     'opts'    => ['--unified=15'],
                    251:     'colored' => 1,
                    252:   },
                    253:   {
                    254:     'descr'   => 'unified',
                    255:     'opts'    => ['-u'],
                    256:     'colored' => 0,
                    257:   },
                    258:   {
                    259:     'descr'   => 'context',
                    260:     'opts'    => ['-c'],
                    261:     'colored' => 0,
                    262:   },
                    263:   {
                    264:     'descr'   => 'side by side',
                    265:     'opts'    => ['--side-by-side', '--width=164'],
                    266:     'colored' => 0,
                    267:   },
3.80      knu       268: );
3.37      knu       269:
                    270: @LOGSORTKEYS = qw(cvs date rev);
                    271: @LOGSORTKEYS{@LOGSORTKEYS} = (
3.120     scop      272:   {'descr' => 'Not sorted',},
                    273:   {'descr' => 'Commit date',},
                    274:   {'descr' => 'Revision',},
3.80      knu       275: );
3.37      knu       276:
3.1       knu       277: ##### End of configuration variables #####
                    278:
3.120     scop      279: $checkoutMagic =  "~checkout~";
                    280: $pathinfo      =  defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    281: $where         =  $pathinfo;
                    282: $doCheckout    =  ($where =~ m|^/$checkoutMagic/|);
                    283: $where         =~ s|^/$checkoutMagic/|/|;
                    284: $where         =~ s|^/||;
                    285: $scriptname    =  defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    286: $scriptname    =~ s|^/*|/|;
3.63      knu       287:
3.64      knu       288: # Let's workaround thttpd's stupidity..
3.63      knu       289: if ($scriptname =~ m|/$|) {
3.120     scop      290:   $pathinfo .= '/';
                    291:   my $re = quotemeta $pathinfo;
                    292:   $scriptname =~ s/$re$//;
3.63      knu       293: }
                    294:
3.120     scop      295: $scriptwhere  = $scriptname;
3.63      knu       296: $scriptwhere .= '/' . urlencode($where);
                    297: $where = '/' if ($where eq '');
3.3       knu       298:
3.1       knu       299: # in lynx, it it very annoying to have two links
                    300: # per file, so disable the link at the icon
                    301: # in this case:
3.120     scop      302: $Browser     = $ENV{HTTP_USER_AGENT} || '';
3.80      knu       303: $is_links    = ($Browser =~ m`^Links `);
                    304: $is_lynx     = ($Browser =~ m`^Lynx/`i);
                    305: $is_w3m      = ($Browser =~ m`^w3m/`i);
                    306: $is_msie     = ($Browser =~ m`MSIE`);
3.5       knu       307: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       308:
3.34      knu       309: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       310:
                    311: $nofilelinks = $is_textbased;
3.1       knu       312:
                    313: # newer browsers accept gzip content encoding
                    314: # and state this in a header
                    315: # (netscape did always but didn't state it)
                    316: # It has been reported that these
                    317: #  braindamaged MS-Internet Exploders claim that they
                    318: # accept gzip .. but don't in fact and
                    319: # display garbage then :-/
3.23      knu       320: # Turn off gzip if running under mod_perl and no zlib is available,
                    321: # piping does not work as expected inside the server.
3.120     scop      322: $maycompress = (
                    323:   ((defined($ENV{HTTP_ACCEPT_ENCODING})
                    324:     && $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
                    325:    || $is_mozilla3)
                    326:   && !$is_msie
                    327:   && !($is_mod_perl && !$has_zlib)
                    328: );
3.1       knu       329:
                    330: # put here the variables we need in order
                    331: # to hold our state - they will be added (with
3.12      knu       332: # their current value) to any link/query string
3.1       knu       333: # you construct
3.149     scop      334: @stickyvars = qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag
                    335:                  ln);
3.97      knu       336: @unsafevars = qw(logsort only_with_tag r1 r2 rev sortby tr1 tr2);
1.1       jfieber   337:
3.1       knu       338: if (-f $config) {
3.120     scop      339:   do "$config"
                    340:     or fatal("500 Internal Error",
                    341:              'Error in loading configuration file: %s<br><br>%s<br>',
                    342:              $config, $@);
3.27      knu       343: } else {
3.120     scop      344:   fatal("500 Internal Error",
                    345:         'Configuration not found.  Set the variable <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
3.1       knu       346: }
                    347:
3.144     scop      348: $CSS = $cssurl ?
                    349:   sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n",
                    350:           htmlquote($cssurl)) : '';
                    351:
3.1       knu       352: undef %input;
3.3       knu       353: $query = $ENV{QUERY_STRING};
                    354:
3.12      knu       355: if (defined($query) && $query ne '') {
3.120     scop      356:   foreach (split (/&/, $query)) {
                    357:     y/+/ /;
                    358:     s/%(..)/sprintf("%c", hex($1))/ge;    # unquote %-quoted
                    359:     if (/(\S+)=(.*)/) {
                    360:       $input{$1} = $2 if ($2 ne "");
                    361:     } else {
                    362:       $input{$_}++;
                    363:     }
                    364:   }
1.7       fenner    365: }
1.10      wosch     366:
3.12      knu       367: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       368: $input{only_with_tag} = $input{only_on_branch}
3.120     scop      369:   if (defined($input{only_on_branch}));
3.97      knu       370:
3.154     scop      371: # Prevent cross-site scripting, untaint.
3.97      knu       372: foreach (@unsafevars) {
3.154     scop      373:   if (defined($input{$_})) {
                    374:     # Colons are needed in diffs between tags.
3.155     scop      375:     if ($input{$_} =~ /^([\w\-.:]*)$/) {
3.154     scop      376:       $input{$_} = $1;
                    377:     } else {
                    378:       fatal("500 Internal Error", 'Malformed query (%s=%s)', $_, $input{$_});
                    379:     }
3.120     scop      380:   }
3.97      knu       381: }
                    382:
                    383: if (defined($input{"content-type"})) {
3.146     scop      384:   fatal('500 Internal Error', 'Unsupported content-type')
                    385:     if ($input{"content-type"} !~ /^[-0-9A-Za-z]+\/[-0-9A-Za-z\.]+$/);
3.97      knu       386: }
1.10      wosch     387:
3.158     scop      388: #
                    389: # CVS roots
                    390: #
                    391: my $rootfound = 0;
                    392: for (my $i = 0; $i < scalar(@CVSrepositories); $i += 2) {
                    393:   my $key = $CVSrepositories[$i];
                    394:   my ($descr, $cvsroot) = @{$CVSrepositories[$i+1]};
                    395:   unless (-d $cvsroot) {
                    396:     warn("Root '$cvsroot' defined in \@CVSrepositories is not a directory, " .
                    397:          'entry ignored');
                    398:     next;
                    399:   }
                    400:   $rootfound ||= 1;
                    401:   $cvstreedefault = $key unless defined($cvstreedefault);
                    402:   $CVSROOTdescr{$key} = $descr;
                    403:   $CVSROOT{$key} = $cvsroot;
                    404:   push(@CVSROOT, $key);
                    405: }
                    406: unless ($rootfound) {
                    407:   fatal('500 Internal Error',
                    408:         'No valid CVS roots found!  See <code>@CVSrepositories</code> in ' .
                    409:         'your configuration file (<code>%s</code>).',
                    410:         $config);
                    411: }
                    412: undef $rootfound;
                    413:
                    414: #
                    415: # Default CVS root
                    416: #
                    417: if (!defined($CVSROOT{$cvstreedefault})) {
                    418:   fatal("500 Internal Error",
                    419:         '<code>$cvstreedefault</code> points to a repository (%s) not ' .
                    420:         'defined in <code>@CVSrepositories</code> in your configuration ' .
                    421:         'file (<code>%s</code>).',
                    422:         $cvstreedefault,
                    423:         $config);
                    424: }
                    425:
3.1       knu       426: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     427:
3.120     scop      428: while (my ($key, $defval) = each %DEFAULTVALUE) {
3.80      knu       429:
3.120     scop      430:   # Replace not given parameters with defaults.
                    431:   next unless (defined($defval)
3.121     scop      432:                && (!defined($input{$key}) || $input{$key} eq ''));
3.120     scop      433:
                    434:   # Empty checkboxes in forms return nothing, so we define a helper variable
                    435:   # in these forms (copt) which indicates that we just set parameters with a
                    436:   # checkbox.
                    437:   if (defined($input{'copt'})) {
                    438:
                    439:     # 'copt' is defined -> the result of empty input checkbox
                    440:     # -> set to zero (disable) if default is a boolean (0|1).
                    441:     $input{$key} = 0 if ($defval eq '0' || $defval eq '1');
                    442:
                    443:   } else {
                    444:
                    445:     # 'copt' isn't defined --> empty input is not the result
                    446:     # of empty input checkbox --> set default.
                    447:     $input{$key} = $defval;
                    448:   }
1.10      wosch     449: }
3.12      knu       450:
3.1       knu       451: $barequery = "";
3.31      knu       452: my @barequery;
3.1       knu       453: foreach (@stickyvars) {
3.80      knu       454:
3.120     scop      455:   # construct a query string with the sticky non default parameters set
                    456:   if (defined($input{$_})
                    457:       && $input{$_} ne ''
                    458:       && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
                    459:   {
                    460:     push @barequery, join ('=', urlencode($_), urlencode($input{$_}));
                    461:   }
3.1       knu       462: }
3.80      knu       463:
3.1       knu       464: # is there any query ?
3.31      knu       465: if (@barequery) {
3.120     scop      466:   $barequery = join ('&', @barequery);
                    467:   $query     = "?$barequery";
                    468:   $barequery = "&$barequery";
3.80      knu       469: } else {
3.120     scop      470:   $query = "";
3.1       knu       471: }
3.31      knu       472: undef @barequery;
3.1       knu       473:
3.120     scop      474: if (defined($input{'path'})) {
                    475:   redirect("$scriptname/$input{path}$query");
3.57      knu       476: }
                    477:
3.1       knu       478: # get actual parameters
3.144     scop      479: {
                    480:   my $sortby = $input{sortby} || 'file';
                    481:   $bydate    = 0;
                    482:   $byrev     = 0;
                    483:   $byauthor  = 0;
                    484:   $bylog     = 0;
                    485:   $byfile    = 0;
                    486:   if ($sortby eq 'date') {
                    487:     $bydate = 1;
                    488:   } elsif ($sortby eq 'rev') {
                    489:     $byrev = 1;
                    490:   } elsif ($sortby eq 'author') {
                    491:     $byauthor = 1;
                    492:   } elsif ($sortby eq 'log') {
                    493:     $bylog = 1;
                    494:   } else {
                    495:     $byfile = 1;
                    496:   }
3.1       knu       497: }
                    498:
3.37      knu       499: $defaultDiffType = $input{'f'};
3.1       knu       500:
3.3       knu       501: $logsort = $input{'logsort'};
3.1       knu       502:
                    503: # alternate CVS-Tree, configured in cvsweb.conf
                    504: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
3.120     scop      505:   $cvstree = $input{'cvsroot'};
3.1       knu       506: } else {
3.120     scop      507:   $cvstree = $cvstreedefault;
1.10      wosch     508: }
                    509:
3.1       knu       510: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     511:
3.1       knu       512: # create icons out of description
3.120     scop      513: foreach my $k (keys %ICONS) {
                    514:   my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
                    515:   no strict 'refs';
                    516:   if ($ipath) {
                    517:     ${"${k}icon"} =
                    518:       sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d">',
3.132     scop      519:               hrefquote($ipath), htmlquote($itxt), $iwidth, $iheight);
3.120     scop      520:   } else {
                    521:     ${"${k}icon"} = $itxt;
                    522:   }
1.24      wosch     523: }
                    524:
3.27      knu       525: my $config_cvstree = "$config-$cvstree";
                    526:
3.1       knu       527: # Do some special configuration for cvstrees
3.27      knu       528: if (-f $config_cvstree) {
3.120     scop      529:   do "$config_cvstree"
                    530:     or fatal("500 Internal Error",
                    531:              'Error in loading configuration file: %s<br><br>%s<br>',
                    532:              $config_cvstree, $@);
3.27      knu       533: }
3.31      knu       534: undef $config_cvstree;
3.1       knu       535:
3.120     scop      536: $re_prcategories  = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
                    537: $re_prkeyword     = quotemeta($prkeyword) if defined($prkeyword);
                    538: $prcgi           .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     539:
3.80      knu       540: $fullname         = "$cvsroot/$where";
3.1       knu       541:
3.63      knu       542: my $rewrite = 0;
                    543:
                    544: if ($pathinfo =~ m|//|) {
3.120     scop      545:   $pathinfo =~ y|/|/|s;
                    546:   $rewrite = 1;
3.63      knu       547: }
                    548:
3.120     scop      549: if (-d $fullname) {
                    550:   if ($pathinfo !~ m|/$|) {
                    551:     $pathinfo .= '/';
                    552:     $rewrite   = 1;
                    553:   }
                    554: } else {
                    555:   if ($pathinfo =~ m|/$|) {
                    556:     chop $pathinfo;
                    557:     $rewrite = 1;
                    558:   }
3.63      knu       559: }
                    560:
                    561: if ($rewrite) {
3.120     scop      562:   redirect($scriptname . urlencode($pathinfo) . $query);
3.1       knu       563: }
                    564:
3.63      knu       565: undef $rewrite;
                    566:
3.1       knu       567: if (!-d $cvsroot) {
3.120     scop      568:   fatal("500 Internal Error",
                    569:         '$CVSROOT not found!<p>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
3.1       knu       570: }
                    571:
                    572: #
                    573: # See if the module is in our forbidden list.
                    574: #
                    575: $where =~ m:([^/]*):;
                    576: $module = $1;
                    577: if ($module && &forbidden_module($module)) {
3.120     scop      578:   fatal("403 Forbidden", 'Access to %s forbidden.', $where);
3.1       knu       579: }
3.46      knu       580:
                    581: #
                    582: # Handle tarball downloads before any headers are output.
                    583: #
                    584: if ($input{tarball}) {
3.120     scop      585:   fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
                    586:     unless $allow_tar;
                    587:   my ($module)  =  ($where =~ m,^/?(.*),);    # untaint
                    588:   $module       =~ s,/([^/]*)$,,;
                    589:   my ($ext)     =  ($1 =~ /(\.tar\.gz|\.zip)$/);
                    590:   my ($basedir) =  ($module =~ m,([^/]+)$,);
                    591:
                    592:   if ($basedir eq '' || $module eq '') {
                    593:     fatal('500 Internal Error',
                    594:           'You cannot download the top level directory.');
                    595:   }
                    596:
3.138     scop      597:   my $tmpexportdir;
                    598:   eval {
                    599:     local $SIG{__DIE__};
3.165     scop      600:     $tmpexportdir = tempdir('.cvsweb.XXXXXXXX', TMPDIR => 1, CLEANUP => 1);
3.138     scop      601:   };
                    602:   if ($@) {
                    603:     fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
                    604:   }
3.120     scop      605:
                    606:   my @fatal;
                    607:
                    608:   my $tag =
                    609:     (exists $input{only_with_tag} && length $input{only_with_tag})
                    610:     ? $input{only_with_tag}
                    611:     : 'HEAD';
                    612:
                    613:   $tag = 'HEAD' if $tag eq 'MAIN';
                    614:
                    615:   if (system($CMD{cvs},
                    616:              @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag, '-d',
3.165     scop      617:              catdir($tmpexportdir, $basedir), $module))
3.120     scop      618:   {
3.141     scop      619:     @fatal = ('500 Internal Error', 'cvs export failure: %s: %s', $!, $module);
3.120     scop      620:   } else {
                    621:     $| = 1;    # Essential to get the buffering right.
                    622:
                    623:     if ($ext eq '.tar.gz') {
                    624:       print "Content-Type: application/x-gzip\r\n\r\n";
                    625:
                    626:       system("$CMD{tar} @tar_options -cf - -C $tmpexportdir $basedir | $CMD{gzip} @gzip_options -c")
                    627:         and @fatal =
                    628:           ('500 Internal Error', 'tar zc failure: %s: %s', $!, $basedir);
                    629:     } elsif ($ext eq '.zip' && $CMD{zip}) {
                    630:       print "Content-Type: application/zip\r\n\r\n";
                    631:
                    632:       system("cd $tmpexportdir && $CMD{zip} @zip_options -r - $basedir")
                    633:         and @fatal =
                    634:           ('500 Internal Error', 'zip failure: %s: %s', $!, $basedir);
                    635:     } else {
                    636:       @fatal = ('500 Internal Error', 'unsupported file type');
                    637:     }
                    638:   }
3.46      knu       639:
3.138     scop      640:   # File::Temp's CLEANUP will handle cleanup of the temp dir for us.
3.46      knu       641:
3.120     scop      642:   &fatal(@fatal) if @fatal;
3.46      knu       643:
3.120     scop      644:   exit;
3.46      knu       645: }
                    646:
3.1       knu       647: ##############################
                    648: # View a directory
                    649: ###############################
3.46      knu       650: if (-d $fullname) {
3.120     scop      651:   my $dh = do { local (*DH); };
                    652:   opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
                    653:   my @dir = readdir($dh);
                    654:   closedir($dh);
                    655:   my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    656:     if ($show_subdir_lastmod);
3.150     scop      657:   my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
3.120     scop      658:
                    659:   if ($where eq '/') {
                    660:     html_header($defaulttitle);
                    661:     $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
                    662:     print $long_intro;
                    663:   } else {
                    664:     html_header($where);
                    665:     print $short_instruction;
                    666:   }
                    667:
3.165     scop      668:   if ($use_descriptions &&
                    669:       open(DESC, '<', catfile($cvsroot, 'CVSROOT', 'descriptions'))) {
3.120     scop      670:     while (<DESC>) {
                    671:       chomp;
                    672:       my ($dir, $description) = /(\S+)\s+(.*)/;
                    673:       $descriptions{$dir} = $description;
                    674:     }
                    675:     close(DESC);
                    676:   }
                    677:
                    678:   print "<p><a name=\"dirlist\"></a></p>\n";
                    679:
                    680:   # give direct access to dirs
                    681:   if ($where eq '/') {
                    682:     chooseMirror();
                    683:     chooseCVSRoot();
                    684:   } else {
                    685:     print "<p>Current directory: <b>", &clickablePath($where, 0), "</b></p>\n";
                    686:
3.153     scop      687:     print "<p>Current tag: <b>", htmlquote($input{only_with_tag}), "</b></p>\n"
3.120     scop      688:       if $input{only_with_tag};
                    689:
                    690:   }
                    691:
                    692:   print "<hr noshade>\n";
                    693:
3.131     scop      694:   my $infocols = 0;
                    695:
                    696:   print "<table class=\"dir\" width=\"100%\" cellspacing=\"1\" cellpadding=\"$tablepadding\">\n";
                    697:   $infocols++;
3.132     scop      698:   printf "<tr>\n<th class=\"dir-header%s\" colspan=\"2\">",
                    699:     $byfile ? '-sorted' : '';
3.131     scop      700:
                    701:   if ($byfile) {
                    702:     print 'File';
                    703:   } else {
                    704:     print &link('File',
                    705:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
                    706:   }
                    707:   print "</th>\n";
3.120     scop      708:
3.131     scop      709:   # Do not display the other column headers if we do not have any files
                    710:   # with revision information.
                    711:   if (scalar(%fileinfo)) {
3.120     scop      712:     $infocols++;
3.131     scop      713:     printf '<th class="dir-header%s">', $byrev ? '-sorted' : '';
3.120     scop      714:
3.131     scop      715:     if ($byrev) {
                    716:       print 'Rev.';
3.120     scop      717:     } else {
3.131     scop      718:       print &link('Rev.',
                    719:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
3.120     scop      720:     }
                    721:     print "</th>\n";
3.131     scop      722:     $infocols++;
                    723:     printf '<th class="dir-header%s">', $bydate ? '-sorted' : '';
3.120     scop      724:
3.131     scop      725:     if ($bydate) {
                    726:       print 'Age';
                    727:     } else {
                    728:       print &link('Age',
                    729:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
                    730:     }
                    731:     print "</th>\n";
3.120     scop      732:
3.131     scop      733:     if ($show_author) {
3.120     scop      734:       $infocols++;
3.131     scop      735:       printf '<th class="dir-header%s">', $byauthor ? '-sorted' : '';
3.120     scop      736:
3.131     scop      737:       if ($byauthor) {
                    738:         print 'Author';
3.120     scop      739:       } else {
3.131     scop      740:         print
                    741:           &link('Author',
                    742:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
3.120     scop      743:       }
                    744:       print "</th>\n";
3.131     scop      745:     }
                    746:     $infocols++;
                    747:     printf '<th class="dir-header%s">', $bylog ? '-sorted' : '';
3.120     scop      748:
3.131     scop      749:     if ($bylog) {
                    750:       print 'Last log entry';
                    751:     } else {
                    752:       print &link('Last log entry',
                    753:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
3.120     scop      754:     }
3.131     scop      755:     print "</th>\n";
                    756:   } elsif ($use_descriptions) {
                    757:     print "<th class=\"dir-header\">Description</th>\n";
                    758:     $infocols++;
3.120     scop      759:   }
3.131     scop      760:   print "</tr>\n";
                    761:
3.120     scop      762:   my $dirrow = 0;
                    763:
                    764:   my $i;
                    765:   lookingforattic:
                    766:   for ($i = 0; $i <= $#dir; $i++) {
                    767:     if ($dir[$i] eq "Attic") {
                    768:       last lookingforattic;
                    769:     }
                    770:   }
                    771:
                    772:   if (!$input{'hideattic'}
                    773:       && ($i <= $#dir)
                    774:       && opendir($dh, $fullname . '/Attic'))
                    775:   {
                    776:     splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
                    777:     closedir($dh);
                    778:   }
                    779:
                    780:   my $hideAtticToggleLink =
                    781:     $input{'hideattic'}
                    782:     ? ''
                    783:     : &link('[Hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    784:
                    785:   # Sort without the Attic/ pathname.
                    786:   # place directories first
                    787:
                    788:   my $attic;
                    789:   my $url;
                    790:   my $fileurl;
                    791:   my $filesexists;
                    792:   my $filesfound;
                    793:
                    794:   foreach my $file (sort { &fileSortCmp } @dir) {
                    795:
                    796:     next if ($file eq '.');
                    797:
                    798:     # ignore CVS lock and stale NFS files
                    799:     next if ($file =~ /^\#cvs\.|^,|^\.nfs/); # \# for XEmacs cperl-mode...
                    800:
                    801:     # Check whether to show the CVSROOT path
                    802:     next if ($input{'hidecvsroot'} && $file eq 'CVSROOT');
                    803:
                    804:     # Check whether the module is in the restricted list
                    805:     next if ($file && &forbidden_module($file));
                    806:
3.150     scop      807:     # Is it a directory?
                    808:     my $isdir = -d "$fullname/$file";
                    809:
                    810:     # Ignore non-readable files and directories?
                    811:     next if ($input{'hidenonreadable'} && (! -r _ || ($isdir && ! -x _)));
3.120     scop      812:
                    813:     if ($file =~ s|^Attic/||) {
3.131     scop      814:       $attic = ' (in&nbsp;the&nbsp;Attic)&nbsp;' . $hideAtticToggleLink;
3.120     scop      815:     } else {
                    816:       $attic = '';
                    817:     }
                    818:
3.150     scop      819:     if ($file eq '..' || $isdir) {
3.120     scop      820:       next if ($file eq '..' && $where eq '/');
3.152     scop      821:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    822:         @{$fileinfo{$file}} if (defined($fileinfo{$file}));
3.132     scop      823:       printf "<tr class=\"dir-row-%s\">\n<td colspan=\"2\">",
                    824:         ($dirrow % 2) ? 'even' : 'odd';
3.120     scop      825:
                    826:       if ($file eq '..') {
                    827:         $url = "../$query";
                    828:         if ($nofilelinks) {
                    829:           print $backicon;
                    830:         } else {
                    831:           print &link($backicon, $url);
                    832:         }
                    833:         print '&nbsp;', &link("Parent Directory", $url);
                    834:       } else {
                    835:         $url = './' . urlencode($file) . "/$query";
3.136     scop      836:         print '<a name="', hrefquote($file), '"></a>';
3.120     scop      837:
                    838:         if ($nofilelinks) {
                    839:           print $diricon;
                    840:         } else {
                    841:           print &link($diricon, $url);
                    842:         }
3.136     scop      843:         print '&nbsp;', &link(htmlquote("$file/"), $url), $attic;
3.120     scop      844:
                    845:         if ($file eq "Attic") {
                    846:           print "&nbsp; ";
                    847:           print &link('[Don\'t hide]',
                    848:                       sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    849:         }
                    850:       }
                    851:
                    852:       # Show last change in dir
                    853:       if ($filename) {
3.131     scop      854:         print "</td>\n<td>&nbsp;</td>\n<td>&nbsp;";
                    855:
3.120     scop      856:         if ($date) {
                    857:           print " <i>", readableTime(time() - $date, 0), "</i>";
                    858:         }
                    859:
                    860:         if ($show_author) {
3.136     scop      861:           print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      862:         }
3.131     scop      863:         print "</td>\n<td>&nbsp;";
3.120     scop      864:         $filename =~ s%^[^/]+/%%;
3.136     scop      865:         print htmlquote($filename), '/', $rev, '<br>';
3.120     scop      866:
                    867:         if ($log) {
                    868:           print '&nbsp;<span style="font-size: smaller">',
                    869:             &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    870:           print '...' if (length($log) > 80);
                    871:           print '</span>';
                    872:         }
                    873:       } else {
                    874:         my $dwhere = ($where ne '/' ? $where : '') . $file;
                    875:
                    876:         if ($use_descriptions && defined $descriptions{$dwhere}) {
3.131     scop      877:           print '<td colspan="', ($infocols - 1), '">&nbsp;';
3.120     scop      878:           print $descriptions{$dwhere};
                    879:
3.131     scop      880:         } elsif ($infocols > 1) {
3.120     scop      881:
                    882:           # close the row with the appropriate number of
                    883:           # columns, so that the vertical seperators are visible
                    884:           my ($cols) = $infocols;
                    885:           while ($cols > 1) {
                    886:             print "</td>\n<td>&nbsp;";
                    887:             $cols--;
                    888:           }
                    889:         }
                    890:       }
                    891:
3.131     scop      892:       print "</td>\n</tr>\n";
3.120     scop      893:       $dirrow++;
3.131     scop      894:
3.120     scop      895:     } elsif ($file =~ s/,v$//) {
                    896:
                    897:       # Skip forbidden files now so we'll give no hint
                    898:       # about their existence.  This should probably have
                    899:       # been done earlier, but it's straightforward here.
                    900:       next if forbidden_file("$fullname/$file");
                    901:
                    902:       $fileurl   = ($attic ? 'Attic/' : '') . urlencode($file);
                    903:       $url       = './' . $fileurl . $query;
                    904:       $filesexists++;
                    905:       next if (!defined($fileinfo{$file}));
3.152     scop      906:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    907:         @{$fileinfo{$file}};
3.156     scop      908:       my $isbinary = $keywordsubst eq 'b' ? 1 : 0;
3.120     scop      909:       $filesfound++;
3.156     scop      910:
3.132     scop      911:       printf "<tr class=\"dir-row-%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
                    912:       printf '<td%s>', $allow_cvsgraph ? '' : ' colspan="2"';
3.120     scop      913:
3.156     scop      914:       my $icon = $isbinary ? $binfileicon : $fileicon;
3.120     scop      915:       if ($nofilelinks) {
3.152     scop      916:         print $icon;
3.120     scop      917:       } else {
3.152     scop      918:         print &link($icon, $url);
3.120     scop      919:       }
                    920:       print '&nbsp;', &link(htmlquote($file), $url), $attic;
3.132     scop      921:       if ($allow_cvsgraph) {
                    922:         print '</td><td>', &graph_link($fileurl, $rev);
                    923:       }
                    924:       print "</td>\n<td width=\"30\">&nbsp;";
3.120     scop      925:       download_link($fileurl, $rev, $rev,
3.156     scop      926:                     viewable(getMimeType($file, $isbinary)) ?
                    927:                     'text/x-cvsweb-markup' : undef);
3.131     scop      928:       print "</td>\n<td>&nbsp;";
3.120     scop      929:
                    930:       if ($date) {
                    931:         print " <i>", readableTime(time() - $date, 0), "</i>";
                    932:       }
                    933:       if ($show_author) {
3.136     scop      934:         print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      935:       }
3.131     scop      936:       print "</td>\n<td>&nbsp;";
3.120     scop      937:
                    938:       if ($log) {
                    939:         print ' <span style="font-size: smaller">',
                    940:           &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    941:         print '...' if (length $log > 80);
                    942:         print '</span>';
                    943:       }
3.131     scop      944:       print "</td>\n</tr>";
3.120     scop      945:       $dirrow++;
                    946:     }
                    947:     print "\n";
                    948:   }
                    949:
3.131     scop      950:   print "</table>\n";
3.120     scop      951:
3.150     scop      952:   if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
                    953:     printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
                    954: <p>
                    955:  <b>NOTE:</b> The following %d unreadable files were ignored:<br>
                    956:  <em>%s</em>
                    957: </p>
                    958: EOF
                    959:   }
                    960:
3.120     scop      961:   if ($filesexists && !$filesfound) {
3.150     scop      962:     my $currtag = defined($input{only_with_tag}) ?
                    963:       sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
                    964:     printf(<<EOF, $filesexists, $currtag);
                    965: <p>
                    966:  <b>NOTE:</b> There are %d files, but none matches the current tag%s.
                    967: </p>
                    968: EOF
3.120     scop      969:   }
                    970:
                    971:   if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                    972:     %tags = %alltags;
                    973:   }
                    974:
                    975:   if (scalar %tags
                    976:       || $input{only_with_tag}
                    977:       || $edit_option_form
                    978:       || defined($input{"options"}))
                    979:   {
                    980:     print "<hr size=\"1\" noshade>\n";
                    981:   }
                    982:
                    983:   if (scalar %tags || $input{only_with_tag}) {
                    984:     print "<form method=\"get\" action=\"./\">\n";
                    985:     foreach my $var (@stickyvars) {
3.154     scop      986:       printf("<input type=\"hidden\" name=\"$var\" value=\"%s\">\n",
                    987:              htmlquote($input{$var}))
3.120     scop      988:         if (defined($input{$var})
                    989:             && (!defined($DEFAULTVALUE{$var})
                    990:                 || $input{$var} ne $DEFAULTVALUE{$var})
                    991:             && $input{$var} ne ""
                    992:             && $var ne 'only_with_tag');
                    993:     }
                    994:     print "<p><label for=\"only_with_tag\" accesskey=\"T\">";
                    995:     print "Show only files with tag:</label>\n";
                    996:     print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
                    997:     print " onchange=\"this.form.submit()\"" if $use_java_script;
                    998:     print ">";
                    999:     print "<option value=\"\">All tags / default branch</option>\n";
                   1000:
                   1001:     foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.136     scop     1002:       my $selected =
                   1003:         defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
                   1004:       printf("<option%s>%s</option>\n",
                   1005:              $selected ? ' selected' : '',
                   1006:              htmlquote($tag));
3.120     scop     1007:     }
                   1008:     print "</select>\n";
                   1009:     print " <label for=\"path\" accesskey=\"P\">";
                   1010:     print "Module path or alias:</label>\n";
                   1011:     printf "<input type=\"text\" id=\"path\" name=\"path\" value=\"%s\" size=\"15\">\n", htmlquote($where);
                   1012:     print "<input type=\"submit\" value=\"Go\" accesskey=\"G\"></p>\n";
                   1013:     print "</form>\n";
                   1014:   }
                   1015:
                   1016:   if ($allow_tar) {
                   1017:     my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
                   1018:
                   1019:     if (defined($basefile) && $basefile ne '') {
                   1020:       print "<hr noshade>\n",
                   1021:         "<div align=\"center\">Download this directory in ";
                   1022:
                   1023:       # Mangle the filename so browsers show a reasonable
                   1024:       # filename to download.
                   1025:       print
                   1026:         &link("tarball",
                   1027:               "./$basefile.tar.gz$query" . ($query ? "&" : "?") . "tarball=1");
                   1028:       if ($CMD{zip}) {
                   1029:         print " or ",
                   1030:           &link("zip archive",
                   1031:                 "./$basefile.zip$query" . ($query ? "&" : "?") . "tarball=1");
                   1032:       }
                   1033:       print "</div>\n";
                   1034:     }
                   1035:   }
                   1036:
                   1037:   if ($edit_option_form || defined($input{"options"})) {
                   1038:
                   1039:     my $formwhere = $scriptwhere;
                   1040:     $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                   1041:
3.149     scop     1042:     print <<EOF;
                   1043: <form method="get" action="${formwhere}">
                   1044: <input type="hidden" name="copt" value="1">
                   1045: EOF
3.120     scop     1046:     if ($cvstree ne $cvstreedefault) {
                   1047:       print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\">\n";
                   1048:     }
3.149     scop     1049:     print <<EOF;
                   1050: <center>
                   1051: <table cellpadding="0" cellspacing="0">
                   1052: <tr class="dir-header">
                   1053:  <th style="text-align: center">Preferences</th>
                   1054: </tr>
                   1055: <tr>
                   1056: <td>
                   1057: <label for="sortby" accesskey="F">Sort files by:
                   1058: <select id="sortby" name="sortby">
                   1059: <option value="">File</option>
                   1060: EOF
3.120     scop     1061:     print "<option", $bydate ? " selected" : "",
                   1062:       " value=\"date\">Age</option>\n";
                   1063:     print "<option", $byauthor ? " selected" : "",
                   1064:       " value=\"author\">Author</option>\n"
3.140     scop     1065:         if $show_author;
3.120     scop     1066:     print "<option", $byrev ? " selected" : "",
                   1067:       " value=\"rev\">Revision</option>\n";
                   1068:     print "<option", $bylog ? " selected" : "",
                   1069:       " value=\"log\">Log message</option>\n";
3.140     scop     1070:     print "</select></label>,\n";
                   1071:     print '<label for="ignorecase" accesskey="I">case-insensitive: ';
                   1072:     print "<input id=\"ignorecase\" name=\"ignorecase\" type=\"checkbox\"",
                   1073:       $input{'ignorecase'} ? " checked" : "", " value=\"1\"></label>\n";
                   1074:     print "<label for=\"logsort\" accesskey=\"L\">Sort log by: ";
3.120     scop     1075:     printLogSortSelect(0);
3.140     scop     1076:     print "</label></td>\n</tr>\n";
                   1077:     print "<tr>\n<td><label for=\"f\" accesskey=\"D\">Diff format: ";
3.120     scop     1078:     printDiffSelect(0);
3.140     scop     1079:     print '</label> ';
                   1080:     print '<label for="hideattic" accesskey="A">Hide files in Attic: ';
3.120     scop     1081:     print "<input id=\"hideattic\" name=\"hideattic\" type=\"checkbox\"",
3.149     scop     1082:       $input{'hideattic'} ? ' checked' : '',
                   1083:         " value=\"1\"></label></td>\n</tr>\n";
                   1084:     print "<tr>\n<td><label for=\"ln\" accesskey=\"N\">Show line numbers: ";
                   1085:     print "<input id=\"ln\" name=\"ln\" type=\"checkbox\"",
                   1086:       $input{ln} ? ' checked' : '', " value=\"1\"></label></td>\n</tr>\n";
                   1087:     print <<EOF;
                   1088: <tr>
                   1089:  <td align="center">
                   1090:   <input type="submit" value="Change Options" accesskey="C">
                   1091:  </td>
                   1092: </tr>
                   1093: </table>
                   1094: </center>
                   1095: </form>
                   1096: EOF
3.120     scop     1097:   }
                   1098:   html_footer();
3.80      knu      1099: }
3.1       knu      1100:
                   1101: ###############################
                   1102: # View Files
                   1103: ###############################
3.80      knu      1104: elsif (-f $fullname . ',v') {
3.114     scop     1105:
3.120     scop     1106:   if (forbidden_file($fullname)) {
                   1107:     fatal('403 Forbidden',
                   1108:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   1109:     return;
                   1110:   }
                   1111:
                   1112:   if (defined($input{'rev'}) || $doCheckout) {
                   1113:     &doCheckout($fullname, $input{'rev'});
                   1114:     gzipclose();
                   1115:     exit;
                   1116:   }
                   1117:
                   1118:   if (defined($input{'annotate'}) && $allow_annotate) {
                   1119:     &doAnnotate($input{'annotate'});
                   1120:     gzipclose();
                   1121:     exit;
                   1122:   }
                   1123:
                   1124:   if (defined($input{'r1'}) && defined($input{'r2'})) {
                   1125:     &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1126:             $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1127:     gzipclose();
                   1128:     exit;
                   1129:   }
3.132     scop     1130:
                   1131:   if (defined($input{'graph'}) && $allow_cvsgraph) {
                   1132:     if (defined($input{'makeimage'})) {
                   1133:       &doGraph($input{'graph'});
                   1134:     } else {
                   1135:       &doGraphView($input{'graph'});
                   1136:     }
                   1137:     gzipclose();
                   1138:     exit;
                   1139:   }
                   1140:
3.120     scop     1141:   &doLog($fullname);
                   1142:
                   1143:   ##############################
                   1144:   # View Diff
                   1145:   ##############################
                   1146: } elsif ($fullname =~ s/\.diff$//
                   1147:          && -f $fullname . ",v"
                   1148:          && $input{'r1'}
                   1149:          && $input{'r2'})
                   1150: {
                   1151:
                   1152:   # $where-diff-removal if 'cvs rdiff' is used
                   1153:   # .. but 'cvs rdiff'doesn't support some options
                   1154:   # rcsdiff does (-w and -p), so it is disabled
                   1155:   # $where =~ s/\.diff$//;
                   1156:
                   1157:   # Allow diffs using the ".diff" extension
                   1158:   # so that browsers that default to the URL
                   1159:   # for a save filename don't save diff's as
                   1160:   # e.g. foo.c
                   1161:   &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1162:           $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1163:   gzipclose();
                   1164:   exit;
                   1165: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1|
                   1166:   && -f $newname . ",v")
                   1167: {
                   1168:
                   1169:   # The file has been removed and is in the Attic.
                   1170:   # Send a redirect pointing to the file in the Attic.
                   1171:   (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                   1172:   if ($ENV{QUERY_STRING} ne "") {
                   1173:     redirect("${newplace}?$ENV{QUERY_STRING}");
                   1174:   } else {
                   1175:     redirect($newplace);
                   1176:   }
                   1177:   exit;
3.80      knu      1178: } elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
3.120     scop     1179:   http_header("text/plain");
                   1180:   print "You matched the following files:\n";
                   1181:   print join ("\n", @files);
3.80      knu      1182:
3.120     scop     1183:   # Find the tags from each file
                   1184:   # Display a form offering diffs between said tags
3.80      knu      1185: } else {
3.120     scop     1186:   my $fh = do { local (*FH); };
                   1187:   my ($xtra, $module);
3.80      knu      1188:
3.120     scop     1189:   # Assume it's a module name with a potential path following it.
                   1190:   $xtra = (($module = $where) =~ s|/.*||) ? $& : '';
3.80      knu      1191:
3.120     scop     1192:   # Is there an indexed version of modules?
                   1193:   if (open($fh, "< $cvsroot/CVSROOT/modules")) {
                   1194:     while (<$fh>) {
                   1195:       if (/^(\S+)\s+(\S+)/o
                   1196:           && $module eq $1
                   1197:           && -d "$cvsroot/$2"
                   1198:           && $module ne $2)
                   1199:       {
                   1200:         redirect("$scriptname/$2$xtra$query");
                   1201:       }
                   1202:     }
                   1203:   }
                   1204:   fatal("404 Not Found", '%s: no such file or directory', $where);
3.80      knu      1205: }
3.23      knu      1206:
3.25      knu      1207: gzipclose();
3.80      knu      1208:
3.1       knu      1209: ## End MAIN
                   1210:
3.120     scop     1211: sub printDiffSelect($)
                   1212: {
                   1213:   my ($use_java_script) = @_;
                   1214:   my $f = $input{'f'};
                   1215:
                   1216:   print '<select id="f" name="f"';
                   1217:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1218:   print ">\n";
                   1219:
                   1220:   local $_;
                   1221:   for (@DIFFTYPES) {
                   1222:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1223:            $_, $f eq $_ ? ' selected' : '',
                   1224:            "\u$DIFFTYPES{$_}{'descr'}");
                   1225:   }
                   1226:
                   1227:   print "</select>";
                   1228: }
                   1229:
                   1230: sub printLogSortSelect($)
                   1231: {
                   1232:   my ($use_java_script) = @_;
                   1233:
                   1234:   print '<select id="logsort" name="logsort"';
                   1235:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1236:   print ">\n";
                   1237:
                   1238:   local $_;
                   1239:   for (@LOGSORTKEYS) {
                   1240:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1241:            $_, $logsort eq $_ ? ' selected' : '',
                   1242:            "\u$LOGSORTKEYS{$_}{'descr'}");
                   1243:   }
                   1244:
                   1245:   print "</select>";
                   1246: }
                   1247:
                   1248: sub findLastModifiedSubdirs(@)
                   1249: {
                   1250:   my (@dirs) = @_;
                   1251:   my ($dirname, @files);
                   1252:
                   1253:   foreach $dirname (@dirs) {
                   1254:     next if ($dirname eq ".");
                   1255:     next if ($dirname eq "..");
                   1256:     my ($dir) = "$fullname/$dirname";
                   1257:     next if (!-d $dir);
                   1258:
                   1259:     my ($lastmod)     = undef;
                   1260:     my ($lastmodtime) = undef;
                   1261:     my $dh = do { local (*DH); };
                   1262:
                   1263:     opendir($dh, $dir) or next;
                   1264:     my (@filenames) = readdir($dh);
                   1265:     closedir($dh);
                   1266:
                   1267:     foreach my $filename (@filenames) {
                   1268:       $filename = "$dirname/$filename";
                   1269:       my ($file) = "$fullname/$filename";
                   1270:       next if ($filename !~ /,v$/ || !-f $file);
                   1271:
                   1272:       # Skip forbidden files.
                   1273:       (my $f = $file) =~ s/,v$//;
                   1274:       next if forbidden_file($f);
                   1275:
                   1276:       $filename =~ s/,v$//;
                   1277:       my $modtime = -M $file;
                   1278:
                   1279:       if (!defined($lastmod) || $modtime < $lastmodtime) {
                   1280:         $lastmod     = $filename;
                   1281:         $lastmodtime = $modtime;
                   1282:       }
                   1283:     }
                   1284:     push (@files, $lastmod) if (defined($lastmod));
                   1285:   }
                   1286:   return @files;
                   1287: }
                   1288:
                   1289: sub htmlify_sub(&$)
                   1290: {
                   1291:   (my $proc, local $_) = @_;
                   1292:   my @a = split (m`(<a [^>]+>[^<]*</a>)`i);
                   1293:   my $linked;
                   1294:   my $result = '';
                   1295:
                   1296:   while (($_, $linked) = splice(@a, 0, 2)) {
                   1297:     &$proc();
                   1298:     $result .= $_      if defined($_);
                   1299:     $result .= $linked if defined($linked);
                   1300:   }
                   1301:
                   1302:   $result;
                   1303: }
                   1304:
                   1305: sub htmlify($;$)
                   1306: {
                   1307:   (local $_, my $extra) = @_;
                   1308:
                   1309:   $_ = htmlquote($_);
                   1310:
                   1311:   # get URL's as link
                   1312:   s{
3.130     scop     1313:     ((https?|ftp)://.+?)([\s\']|&(quot|[lg]t);)
3.120     scop     1314:    }{
3.130     scop     1315:      &link($1, htmlunquote($1)) . $3
3.120     scop     1316:    }egx;
                   1317:
                   1318:   # get e-mails as link
                   1319:   $_ = htmlify_sub {
                   1320:     s<
                   1321:       [\w+=\-.!]+@[\w\-]+(\.[\w\-]+)+
                   1322:      ><
                   1323:        &link($&, "mailto:$&")
                   1324:      >egix;
                   1325:   } $_;
                   1326:
                   1327:   if ($extra) {
                   1328:
                   1329:     # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
                   1330:     if (defined($prcgi) && defined($re_prkeyword)) {
                   1331:       my $prev;
                   1332:
                   1333:       do {
                   1334:         $prev = $_;
                   1335:
                   1336:         $_ = htmlify_sub {
                   1337:           s{
                   1338:             (\b$re_prkeyword[:\#]?\s*
                   1339:              (?:
                   1340:               \#?
                   1341:               \d+[,\s]\s*
                   1342:              )*
                   1343:              \#?)
                   1344:             (\d+)\b
                   1345:            }{
                   1346:              $1 . &link($2, sprintf($prcgi, $2))
                   1347:            }egix;
                   1348:         } $_;
                   1349:       } while ($_ ne $prev);
                   1350:
                   1351:       if (defined($re_prcategories)) {
                   1352:         $_ = htmlify_sub {
                   1353:           s{
                   1354:             (\b$re_prcategories/(\d+)\b)
                   1355:            }{
                   1356:              &link($1, sprintf($prcgi, $2))
                   1357:            }egox;
                   1358:         } $_;
                   1359:       }
                   1360:     }
                   1361:
                   1362:     # get manpage specs as link: "foo.1" "foo(1)"
                   1363:     if (defined($mancgi)) {
                   1364:       $_ = htmlify_sub {
                   1365:         s{
3.143     knu      1366:           (
                   1367:            \b ( \w[\w+\-.]* (?: ::\w[\w+\-.]*)* )
3.120     scop     1368:            (?:
3.143     knu      1369:             \( ([0-9n]) \) \B
3.120     scop     1370:             |
3.143     knu      1371:             \. ([0-9n]) \b
3.120     scop     1372:            )
                   1373:           )
                   1374:          }{
3.149     scop     1375:             my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
                   1376:             ($name =~ /[A-Za-z]/ && $name !~ /\.(:|$)/)
                   1377:              ? &link($text, sprintf($mancgi, $section, $name))
                   1378:               : $text;
3.120     scop     1379:          }egx;
                   1380:       } $_;
                   1381:     }
                   1382:   }
                   1383:
                   1384:   $_;
                   1385: }
                   1386:
                   1387: sub spacedHtmlText($;$)
                   1388: {
                   1389:   local $_ = $_[0];
                   1390:   my $ts = $_[1] || $tabstop;
                   1391:
                   1392:   # Cut trailing spaces and tabs
                   1393:   s/[ \t]+$//;
                   1394:
                   1395:   if (defined($ts)) {
                   1396:
                   1397:     # Expand tabs
                   1398:     1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e;
                   1399:   }
                   1400:
                   1401:   # replace <tab> and <space> (\001 is to protect us from htmlify)
                   1402:   # gzip can make excellent use of this repeating pattern :-)
                   1403:   if ($hr_breakable) {
                   1404:
                   1405:     # make every other space 'breakable'
                   1406:     s/  / \001nbsp;/g;    # 2 * <space>
                   1407:                           # leave single space as it is
                   1408:   } else {
                   1409:     s/ /\001nbsp;/g;
                   1410:   }
                   1411:
                   1412:   $_ = htmlify($_, $allow_source_extra);
                   1413:
                   1414:   # unescape
                   1415:   y/\001/&/;
                   1416:
                   1417:   return $_;
                   1418: }
                   1419:
                   1420: # Note that this doesn't htmlquote the first argument...
                   1421: sub link($$)
                   1422: {
                   1423:   my ($name, $url) = @_;
                   1424:
                   1425:   $url =~ s/:/sprintf("%%%02x", ord($&))/eg
                   1426:     if $url =~ /^[^a-z]/;    # relative
                   1427:
                   1428:   sprintf '<a href="%s">%s</a>', hrefquote($url), $name;
                   1429: }
                   1430:
                   1431: sub revcmp($$)
                   1432: {
                   1433:   my ($rev1, $rev2) = @_;
                   1434:
                   1435:   # make no comparison for a tag or a branch
                   1436:   return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1437:
                   1438:   my (@r1) = split (/\./, $rev1);
                   1439:   my (@r2) = split (/\./, $rev2);
                   1440:   my ($a, $b);
                   1441:
                   1442:   while (($a = shift (@r1)) && ($b = shift (@r2))) {
                   1443:     if ($a != $b) {
                   1444:       return $a <=> $b;
                   1445:     }
                   1446:   }
                   1447:   if (@r1) { return  1; }
                   1448:   if (@r2) { return -1; }
                   1449:   return 0;
                   1450: }
                   1451:
                   1452: sub fatal($$@)
                   1453: {
                   1454:   my ($errcode, $format, @args) = @_;
                   1455:   if ($is_mod_perl) {
                   1456:     Apache->request->status((split (/ /, $errcode))[0]);
                   1457:   } else {
                   1458:     print "Status: $errcode\r\n";
                   1459:   }
3.131     scop     1460:   html_header('Error');
3.120     scop     1461:   print "<p>Error: ", sprintf($format, map(htmlquote($_), @args)), "</p>\n";
                   1462:   html_footer();
                   1463:   exit(1);
                   1464: }
                   1465:
                   1466: sub redirect($)
                   1467: {
                   1468:   my ($url) = @_;
                   1469:   if ($is_mod_perl) {
                   1470:     Apache->request->status(301);
                   1471:     Apache->request->header_out(Location => $url);
                   1472:   } else {
                   1473:     print "Status: 301 Moved\r\n";
                   1474:     print "Location: $url\r\n";
                   1475:   }
3.131     scop     1476:   html_header('Moved');
3.120     scop     1477:   print "<p>This document is located ", &link('here', $url), "</p>\n";
                   1478:   html_footer();
                   1479:   exit(1);
                   1480: }
                   1481:
                   1482: sub safeglob($)
                   1483: {
                   1484:   my ($filename) = @_;
                   1485:   my ($dirname);
                   1486:   my (@results);
                   1487:   my $dh = do { local (*DH); };
                   1488:
                   1489:   ($dirname = $filename) =~ s|/[^/]+$||;
                   1490:   $filename =~ s|.*/||;
                   1491:
                   1492:   if (opendir($dh, $dirname)) {
                   1493:     my $glob = $filename;
                   1494:     my $t;
                   1495:
3.149     scop     1496:     #   transform filename from glob to regex.  Deal with:
                   1497:     #   [, {, ?, * as glob chars
                   1498:     #   make sure to escape all other regex chars
3.120     scop     1499:     $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1500:     $glob =~ s/\*/.*/g;
                   1501:     $glob =~ s/\?/./g;
                   1502:     $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
                   1503:     foreach (readdir($dh)) {
                   1504:
                   1505:       if (/^${glob}$/) {
                   1506:         push (@results, "$dirname/" . $_);
                   1507:       }
                   1508:     }
                   1509:     closedir($dh);
                   1510:   }
                   1511:
                   1512:   @results;
                   1513: }
                   1514:
3.160     scop     1515:
3.120     scop     1516: sub search_path($)
                   1517: {
                   1518:   my ($command) = @_;
3.160     scop     1519:   for my $d (split (/:/, $command_path)) {
3.120     scop     1520:     return "$d/$command" if -x "$d/$command";
                   1521:   }
                   1522:   return '';
                   1523: }
                   1524:
3.156     scop     1525:
                   1526: sub getMimeType($;$)
3.120     scop     1527: {
3.156     scop     1528:   my ($fullname, $binary) = @_;
                   1529:   $binary = ($keywordsubstitution && $keywordsubstitution =~ /b/)
                   1530:     unless defined($binary);
                   1531:
                   1532:   (my $suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1533:
                   1534:   my $mimetype = $MTYPES{$suffix};
                   1535:   $mimetype  ||= $MimeTypes->mimeTypeOf($fullname) if defined($MimeTypes);
                   1536:
                   1537:   if (!$mimetype && $suffix ne '*' && -f $mime_types && -r _) {
                   1538:     my $fh = do { local (*FH); };
                   1539:     if (open($fh, $mime_types)) {
                   1540:       my $re = sprintf('^\s*(\S+\/\S+)\s.+\b%s\b', quotemeta($suffix));
                   1541:       while (my $line = <$fh>) {
                   1542:         if ($line =~ $re) {
                   1543:           $mimetype = $1;
                   1544:           $MTYPES{$suffix} = $mimetype;
                   1545:           last;
                   1546:         }
3.120     scop     1547:       }
3.156     scop     1548:       close($fh);
                   1549:     } else {
                   1550:       warn("Can't open MIME types file $mime_types for reading: $!");
3.120     scop     1551:     }
                   1552:   }
                   1553:
3.156     scop     1554:   $mimetype ||= $MTYPES{'*'};
                   1555:   $mimetype ||= $binary ? 'application/octet-stream' : 'text/plain';
3.120     scop     1556:   return $mimetype;
3.1       knu      1557: }
                   1558:
3.156     scop     1559:
3.1       knu      1560: ###############################
3.24      knu      1561: # read first lines like head(1)
                   1562: ###############################
3.120     scop     1563: sub head($;$)
                   1564: {
                   1565:   my $fh        = $_[0];
                   1566:   my $linecount = $_[1] || 10;
3.24      knu      1567:
3.120     scop     1568:   my @buf;
                   1569:
                   1570:   if ($linecount > 0) {
                   1571:     my $i;
                   1572:     for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1573:       push @buf, scalar <$fh>;
                   1574:     }
                   1575:   } else {
                   1576:     @buf = <$fh>;
                   1577:   }
                   1578:
                   1579:   @buf;
3.24      knu      1580: }
                   1581:
                   1582: ###############################
                   1583: # scan vim and Emacs directives
                   1584: ###############################
3.120     scop     1585: sub scan_directives(@)
                   1586: {
                   1587:   my $ts = undef;
3.24      knu      1588:
3.120     scop     1589:   for (@_) {
                   1590:     $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1591:   }
3.24      knu      1592:
3.120     scop     1593:   ('tabstop' => $ts);
3.24      knu      1594: }
                   1595:
3.120     scop     1596: sub openOutputFilter()
                   1597: {
                   1598:   return if !defined($output_filter) || $output_filter eq '';
3.86      knu      1599:
3.120     scop     1600:   open(STDOUT, "|-") and return;
3.86      knu      1601:
3.120     scop     1602:   # child of child
3.165     scop     1603:   open(STDERR, '>', devnull());
3.120     scop     1604:   exec($output_filter) or exit -1;
3.86      knu      1605: }
                   1606:
3.24      knu      1607: ###############################
3.1       knu      1608: # show Annotation
                   1609: ###############################
3.133     scop     1610: sub doAnnotate($)
3.120     scop     1611: {
                   1612:   my ($rev) = @_;
                   1613:   my ($pid);
                   1614:   my ($pathname, $filename);
                   1615:   my $reader = do { local (*FH); };
                   1616:   my $writer = do { local (*FH); };
                   1617:
                   1618:   # make sure the revisions are wellformed, for security
                   1619:   # reasons ..
                   1620:   if ($rev =~ /[^\w.]/) {
                   1621:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1622:   }
                   1623:
                   1624:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1625:   ($filename = $where) =~ s/^.*\///;
                   1626:
                   1627:   # this seems to be necessary
                   1628:   $| = 1;
                   1629:   $| = 0;    # Flush
                   1630:
3.126     scop     1631:   # Work around a mod_perl bug (?) in order to make open2() work.
                   1632:   # Search for "untie STDIN" in mod_perl mailing list archives for more info.
                   1633:   my $old_stdin;
                   1634:   if ($is_mod_perl && ($old_stdin = tied *STDIN)) {
                   1635:     local $^W = undef;
                   1636:     untie *STDIN;
                   1637:   }
                   1638:
3.120     scop     1639:   # this annotate version is based on the
                   1640:   # cvs annotate-demo Perl script by Cyclic Software
                   1641:   # It was written by Cyclic Software, http://www.cyclic.com/, and is in
                   1642:   # the public domain.
                   1643:   # we could abandon the use of rlog, rcsdiff and co using
                   1644:   # the cvsserver in a similiar way one day (..after rewrite)
3.128     scop     1645:   $pid = open2($reader, $writer, $CMD{cvs}, @annotate_options, 'server')
3.120     scop     1646:     or fatal("500 Internal Error",
                   1647:              'Fatal Error - unable to open cvs for annotation');
3.126     scop     1648:
                   1649:   # Re-tie STDIN if we fiddled around with it earlier, just to be sure.
                   1650:   tie(*STDIN, ref($old_stdin), $old_stdin) if ($old_stdin && !tied(*STDIN));
3.120     scop     1651:
                   1652:   # OK, first send the request to the server.  A simplified example is:
                   1653:   #     Root /home/kingdon/zwork/cvsroot
                   1654:   #     Argument foo/xx
                   1655:   #     Directory foo
                   1656:   #     /home/kingdon/zwork/cvsroot/foo
                   1657:   #     Directory .
                   1658:   #     /home/kingdon/zwork/cvsroot
                   1659:   #     annotate
                   1660:   # although as you can see there are a few more details.
                   1661:
                   1662:   print $writer "Root $cvsroot\n";
                   1663:   print $writer
                   1664:     "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1665:
                   1666:   # Don't worry about sending valid-requests, the server just needs to
                   1667:   # support "annotate" and if it doesn't, there isn't anything to be done.
                   1668:   print $writer "UseUnchanged\n";
                   1669:   print $writer "Argument -r\n";
                   1670:   print $writer "Argument $rev\n";
                   1671:   print $writer "Argument $where\n";
                   1672:
                   1673:   # The protocol requires us to fully fake a working directory (at
                   1674:   # least to the point of including the directories down to the one
                   1675:   # containing the file in question).
3.123     scop     1676:   # So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
                   1677:   my $path = '';
                   1678:   foreach my $dir (split('/', $where)) {
3.120     scop     1679:
                   1680:     if ($path eq "") {
3.123     scop     1681:       # In our example, $dir is "dir".
                   1682:       $path = $dir;
3.120     scop     1683:     } else {
                   1684:       print $writer "Directory $path\n";
                   1685:       print $writer "$cvsroot/$path\n";
                   1686:
                   1687:       # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1688:       # And the next time, "file" and "dir/sdir/file" (which then gets
                   1689:       # ignored, because we don't need to send Directory for the file).
3.123     scop     1690:       $path .= "/$dir";
3.120     scop     1691:     }
                   1692:   }
3.123     scop     1693:   undef $path;
3.120     scop     1694:
                   1695:   # And the last "Directory" before "annotate" is the top level.
                   1696:   print $writer "Directory .\n";
                   1697:   print $writer "$cvsroot\n";
                   1698:
                   1699:   print $writer "annotate\n";
                   1700:
                   1701:   # OK, we've sent our command to the server.  Thing to do is to
                   1702:   # close the writer side and get all the responses.  If "cvs server"
                   1703:   # were nicer about buffering, then we could just leave it open, I think.
                   1704:   close($writer) or die "cannot close: $!";
                   1705:
3.133     scop     1706:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
3.120     scop     1707:
3.136     scop     1708:   print '<h3 style="text-align: center">Annotation of ',
                   1709:     htmlquote("$pathname$filename"), ", revision $rev</h3>\n";
3.120     scop     1710:
                   1711:   # Ready to get the responses from the server.
                   1712:   # For example:
                   1713:   #     E Annotations for foo/xx
                   1714:   #     E ***************
                   1715:   #     M 1.3          (kingdon  06-Sep-97): hello
                   1716:   #     ok
                   1717:   my ($lineNr) = 0;
                   1718:   my ($oldLrev, $oldLusr) = ("", "");
                   1719:   my ($revprint, $usrprint);
                   1720:
                   1721:   if ($annTable) {
                   1722:     print
                   1723:       "<table style=\"border: none\" cellspacing=\"0\" cellpadding=\"0\">\n";
                   1724:   } else {
                   1725:     print "<pre>";
                   1726:   }
                   1727:
                   1728:   # prefetch several lines
                   1729:   my @buf = head($reader);
                   1730:
                   1731:   my %d = scan_directives(@buf);
                   1732:
                   1733:   while (@buf || !eof($reader)) {
                   1734:     $_ = @buf ? shift @buf : <$reader>;
                   1735:
                   1736:     my @words = split;
                   1737:
                   1738:     # Adding one is for the (single) space which follows $words[0].
                   1739:     my $rest = substr($_, length($words[0]) + 1);
                   1740:     if ($words[0] eq "E") {
                   1741:       next;
                   1742:     } elsif ($words[0] eq "M") {
                   1743:       $lineNr++;
                   1744:       (my $lrev = substr($_, 2,  13)) =~ y/ //d;
                   1745:       (my $lusr = substr($_, 16, 9))  =~ y/ //d;
                   1746:       my $line = substr($_, 36);
                   1747:       my $isCurrentRev = ($rev eq $lrev);
                   1748:
                   1749:       # we should parse the date here ..
                   1750:       if ($lrev eq $oldLrev) {
                   1751:         $revprint = sprintf('%-8s', '');
                   1752:       } else {
                   1753:         $revprint = sprintf('%-8s', $lrev);
                   1754:         $revprint =~ s`\S+`&link($&, "$scriptwhere$query#rev$&")`e;    # `
                   1755:         $oldLusr = '';
                   1756:       }
                   1757:
                   1758:       if ($lusr eq $oldLusr) {
                   1759:         $usrprint = '';
                   1760:       } else {
                   1761:         $usrprint = $lusr;
                   1762:       }
                   1763:       $oldLrev = $lrev;
                   1764:       $oldLusr = $lusr;
                   1765:
                   1766:       # Set bold for text-based browsers only - graphical
                   1767:       # browsers show bold fonts a bit wider than regular fonts,
                   1768:       # so it looks irregular.
                   1769:       print "<b>" if ($isCurrentRev && $is_textbased);
                   1770:
3.136     scop     1771:       $usrprint = sprintf('%-8s', $usrprint);
                   1772:       printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
                   1773:         htmlquote($usrprint), $lineNr;
3.120     scop     1774:       print spacedHtmlText($line, $d{'tabstop'});
                   1775:
                   1776:       print "</b>" if ($isCurrentRev && $is_textbased);
                   1777:     } elsif ($words[0] eq "ok") {
                   1778:
                   1779:       # We could complain about any text received after this, like the
                   1780:       # CVS command line client.  But for simplicity, we don't.
                   1781:     } elsif ($words[0] eq "error") {
                   1782:       fatal("500 Internal Error",
                   1783:             'Error occured during annotate: <b>%s</b>', $_);
                   1784:     }
                   1785:   }
                   1786:
                   1787:   if ($annTable) {
                   1788:     print "</table>";
                   1789:   } else {
                   1790:     print "</pre>";
                   1791:   }
3.124     scop     1792:   html_footer();
                   1793:
3.120     scop     1794:   close($reader) or warn "cannot close: $!";
                   1795:   wait;
3.1       knu      1796: }
                   1797:
                   1798: ###############################
                   1799: # make Checkout
                   1800: ###############################
3.120     scop     1801: sub doCheckout($$)
                   1802: {
                   1803:   my ($fullname, $rev) = @_;
3.156     scop     1804:   my ($revopt);
3.120     scop     1805:   my $fh = do { local (*FH); };
                   1806:
                   1807:   if ($rev eq 'HEAD' || $rev eq '.') {
                   1808:     $rev = undef;
                   1809:   }
                   1810:
                   1811:   # make sure the revisions a wellformed, for security
                   1812:   # reasons ..
                   1813:   if (defined($rev) && $rev =~ /[^\w.]/) {
                   1814:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1815:   }
                   1816:
                   1817:   # get mimetype
3.156     scop     1818:   my $mimetype;
3.120     scop     1819:   if (defined($input{"content-type"})
                   1820:     && ($input{"content-type"} =~ /\S\/\S/))
                   1821:   {
                   1822:     $mimetype = $input{"content-type"};
                   1823:   } else {
3.156     scop     1824:     $mimetype = getMimeType($fullname);
3.120     scop     1825:   }
                   1826:
3.163     scop     1827:   my $moddate = undef;
3.120     scop     1828:   if (defined($rev)) {
                   1829:     $revopt = "-r$rev";
                   1830:     if ($use_moddate) {
                   1831:       readLog($fullname, $rev);
                   1832:       $moddate = $date{$rev};
                   1833:     }
                   1834:   } else {
                   1835:     $revopt = "-rHEAD";
                   1836:     if ($use_moddate) {
                   1837:       readLog($fullname);
                   1838:       $moddate = $date{$symrev{HEAD}};
                   1839:     }
                   1840:   }
                   1841:
                   1842:   ### just for the record:
                   1843:   ### 'cvs co' seems to have a bug regarding single checkout of
                   1844:   ### directories/files having spaces in it;
                   1845:   ### this is an issue that should be resolved on cvs's side
                   1846:   #
                   1847:   # Safely for a child process to read from.
                   1848:   if (!open($fh, "-|")) {    # child
3.165     scop     1849:     # Change to temporary directory first to avoid non-readable cgi-bin dirs.
                   1850:     chdir(tmpdir());
3.120     scop     1851:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   1852:
                   1853:     # work around a bug of cvs -p; expand symlinks
                   1854:     exec($CMD{cvs}, @cvs_options, '-d', abs_path($cvsroot), 'co', '-p',
                   1855:          $revopt, $where)
                   1856:       or exit -1;
                   1857:   }
                   1858:
                   1859:   if (eof($fh)) {
                   1860:     fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
                   1861:   }
                   1862:
                   1863:   #===================================================================
                   1864:   #Checking out squid/src/ftp.c
                   1865:   #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1866:   #VERS: 1.1.1.28.6.2
                   1867:   #***************
                   1868:
                   1869:   # Parse CVS header
                   1870:   my ($revision, $filename, $cvsheader);
                   1871:   $filename = "";
                   1872:   while (<$fh>) {
                   1873:     last if (/^\*\*\*\*/);
                   1874:     $revision = $1 if (/^VERS: (.*)$/);
                   1875:
                   1876:     if (/^Checking out (.*)$/) {
                   1877:       $filename = $1;
                   1878:       $filename =~ s/^\.\/*//;
                   1879:     }
                   1880:     $cvsheader .= $_;
                   1881:   }
                   1882:
                   1883:   if ($filename ne $where) {
                   1884:     fatal("500 Internal Error",
                   1885:           'Unexpected output from cvs co: %s', $cvsheader);
                   1886:   }
                   1887:   $| = 1;
                   1888:
3.146     scop     1889:   if ($mimetype =~ $CvsWebMarkupRE) {
3.163     scop     1890:     # Here we know the last modified date, but don't know if tags have been
                   1891:     # added since: no last-modified (for now).
                   1892:     cvswebMarkup($fh, $fullname, $revision);
3.120     scop     1893:   } else {
3.163     scop     1894:     http_header($mimetype, $moddate);
3.120     scop     1895:     print <$fh>;
                   1896:   }
                   1897:   close($fh);
1.12      fenner   1898: }
                   1899:
3.163     scop     1900: sub cvswebMarkup($$$;$)
3.120     scop     1901: {
3.163     scop     1902:   my ($filehandle, $fullname, $revision, $mod) = @_;
3.120     scop     1903:   my ($pathname,   $filename);
3.1       knu      1904:
3.120     scop     1905:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1906:   ($filename = $where) =~ s/^.*\///;
3.156     scop     1907:   my $fileurl = urlencode($filename);
                   1908:   my $mimetype = getMimeType($filename);
3.120     scop     1909:
3.163     scop     1910:   navigateHeader($scriptwhere, $pathname, $filename, $revision, 'view', $mod);
3.120     scop     1911:
3.144     scop     1912:   print <<EOF;
                   1913: <hr noshade>
                   1914: <table width="100%">
                   1915: <tr>
                   1916: <td class="log-markup">File:&nbsp;
                   1917: EOF
3.159     scop     1918:   print &clickablePath($where, 1), ' - (';
3.144     scop     1919:   &download_link($fileurl, $revision, 'download');
3.156     scop     1920:   if ($mimetype ne 'text/plain') {
3.159     scop     1921:     print ' / ';
3.120     scop     1922:     &download_link($fileurl, $revision, "as text", "text/plain");
                   1923:   }
3.159     scop     1924:   print ')';
                   1925:   print ' - ', &graph_link('', $revision, 'graph') if $allow_cvsgraph;
3.120     scop     1926:   print "<br>\n";
                   1927:
                   1928:   if ($show_log_in_markup) {
                   1929:     readLog($fullname);    #,$revision);
                   1930:     printLog($revision, 0);
                   1931:   } else {
                   1932:     print "Version: <b>$revision</b><br>\n";
                   1933:     print "Tag: <b>", $input{only_with_tag}, "</b><br>\n"
                   1934:       if $input{only_with_tag};
                   1935:   }
                   1936:   print "</td>\n</tr>\n</table>";
                   1937:   my $url = download_url($fileurl, $revision, $mimetype);
                   1938:   print "<hr noshade>";
                   1939:
                   1940:   if ($mimetype =~ /^image/) {
3.160     scop     1941:     printf '<img src="%s" alt="%s"><br>',
                   1942:       hrefquote("$url$barequery"), htmlquote($filename);
3.120     scop     1943:   } elsif ($mimetype =~ m%^application/pdf%) {
3.157     scop     1944:     printf '<embed src="%s" width="100%%" height="100%%"><br>',
                   1945:       hrefquote("$url$barequery");
3.120     scop     1946:   } elsif ($preformat_in_markup) {
                   1947:     print "<pre>";
                   1948:
                   1949:     # prefetch several lines
                   1950:     my @buf = head($filehandle);
                   1951:
                   1952:     my %d = scan_directives(@buf);
                   1953:
                   1954:     while (@buf || !eof($filehandle)) {
                   1955:       $_ = @buf ? shift @buf : <$filehandle>;
                   1956:
                   1957:       print spacedHtmlText($_, $d{'tabstop'});
                   1958:     }
                   1959:     print "</pre>";
                   1960:   } else {
                   1961:
3.148     scop     1962:     my $enscript_hl = undef;
                   1963:
                   1964:     if ($allow_enscript) {
                   1965:       while (my ($hl, $regex) = each %enscript_types) {
3.149     scop     1966:         if ($filename =~ $regex) {
                   1967:           $enscript_hl = $hl;
                   1968:           last;
                   1969:         }
3.148     scop     1970:       }
                   1971:     }
                   1972:
3.149     scop     1973:     print '<pre>';
3.167   ! scop     1974:     my $linenumbers = $input{ln} || 0;
3.149     scop     1975:
3.148     scop     1976:     if ($enscript_hl) {
3.167   ! scop     1977:       doEnscript($filehandle, $enscript_hl, $linenumbers);
3.148     scop     1978:
                   1979:     } else {
3.167   ! scop     1980:       my $ln = 0;
3.148     scop     1981:       while (<$filehandle>) {
3.167   ! scop     1982:         if ($linenumbers) {
        !          1983:           $ln++;
        !          1984:           printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
3.149     scop     1985:         }
                   1986:         print htmlquote($_);
3.148     scop     1987:       }
3.120     scop     1988:     }
3.149     scop     1989:
                   1990:     print "</pre>\n";
3.120     scop     1991:   }
3.131     scop     1992:   html_footer();
3.120     scop     1993: }
                   1994:
3.156     scop     1995:
3.120     scop     1996: sub viewable($)
                   1997: {
3.156     scop     1998:   my $mimetype = shift || '';
                   1999:   return ($allow_markup && $mimetype =~ m%^((text|image)/|application/pdf)%);
                   2000: }
3.120     scop     2001:
3.1       knu      2002:
                   2003: ###############################
                   2004: # Show Colored Diff
                   2005: ###############################
3.120     scop     2006: sub doDiff($$$$$$)
                   2007: {
                   2008:   my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   2009:   my $fh = do { local (*FH); };
                   2010:   my ($rev1, $rev2, $sym1, $sym2, $f1, $f2);
                   2011:
                   2012:   if (&forbidden_file($fullname)) {
                   2013:     fatal("403 Forbidden",
                   2014:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   2015:   }
                   2016:
                   2017:   if ($r1 =~ /([^:]+)(:(.+))?/) {
                   2018:     $rev1 = $1;
                   2019:     $sym1 = $3;
                   2020:   }
                   2021:   if ($r1 eq 'text') {
                   2022:     $rev1 = $tr1;
                   2023:     $sym1 = "";
                   2024:   }
                   2025:
                   2026:   if ($r2 =~ /([^:]+)(:(.+))?/) {
                   2027:     $rev2 = $1;
                   2028:     $sym2 = $3;
                   2029:   }
                   2030:   if ($r2 eq 'text') {
                   2031:     $rev2 = $tr2;
                   2032:     $sym2 = "";
                   2033:   }
                   2034:
                   2035:   # make sure the revisions a wellformed, for security
                   2036:   # reasons ..
                   2037:   if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
                   2038:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   2039:   }
                   2040:
                   2041:   #
                   2042:   # rev1 and rev2 are now both numeric revisions.
                   2043:   # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   2044:   # XXX should we warn about the fact that we do this?
                   2045:   if (&revcmp($rev1, $rev2) > 0) {
                   2046:     my ($tmp1, $tmp2) = ($rev1, $sym1);
                   2047:     ($rev1, $sym1) = ($rev2, $sym2);
                   2048:     ($rev2, $sym2) = ($tmp1, $tmp2);
                   2049:   }
                   2050:   my $difftype = $DIFFTYPES{$f};
                   2051:
                   2052:   if (!$difftype) {
                   2053:     fatal("400 Bad arguments", 'Diff format %s not understood', $f);
                   2054:   }
                   2055:
                   2056:   my @difftype       = @{$difftype->{'opts'}};
                   2057:   my $human_readable = $difftype->{'colored'};
                   2058:
                   2059:   # apply special options
                   2060:   if ($showfunc) {
                   2061:     push @difftype, '-p' if $f ne 's';
                   2062:
                   2063:     my ($re1, $re2);
                   2064:
                   2065:     while (($re1, $re2) = each %funcline_regexp) {
                   2066:       if ($fullname =~ /$re1/) {
                   2067:         push @difftype, '-F', $re2;
                   2068:         last;
                   2069:       }
                   2070:     }
                   2071:   }
                   2072:
                   2073:   if ($human_readable) {
                   2074:     if ($hr_ignwhite) {
                   2075:       push @difftype, '-w';
                   2076:     }
                   2077:     if ($hr_ignkeysubst) {
                   2078:       push @difftype, '-kk';
                   2079:     }
                   2080:   }
                   2081:
                   2082:   if (!open($fh, "-|")) {    # child
                   2083:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   2084:     openOutputFilter();
3.166     scop     2085:     exec($CMD{rcsdiff}, @rcsdiff_options, @difftype, "-r$rev1", "-r$rev2",
                   2086:          $fullname) or exit -1;
3.120     scop     2087:   }
3.166     scop     2088:
3.120     scop     2089:   if ($human_readable) {
                   2090:     &human_readable_diff($fh, $rev2);
                   2091:     html_footer();
                   2092:     gzipclose();
                   2093:     exit;
                   2094:   } else {
                   2095:     http_header("text/plain");
                   2096:   }
                   2097:
                   2098:   #
                   2099:   #===================================================================
                   2100:   #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   2101:   #retrieving revision 1.16
                   2102:   #retrieving revision 1.17
                   2103:   #diff -c -r1.16 -r1.17
                   2104:   #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2105:   #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   2106:   #
                   2107:   # Ideas:
                   2108:   # - nuke the stderr output if it's what we expect it to be
                   2109:   # - Add "no differences found" if the diff command supplied no output.
                   2110:   #
                   2111:   #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2112:   #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   2113:   # (bogus example, but...)
                   2114:   #
                   2115:   if (grep { $_ eq '-u' } @difftype) {
                   2116:     $f1 = '---';
                   2117:     $f2 = '\+\+\+';
                   2118:   } else {
                   2119:     $f1 = '\*\*\*';
                   2120:     $f2 = '---';
                   2121:   }
                   2122:
                   2123:   while (<$fh>) {
                   2124:     if (m|^$f1 $cvsroot|o) {
                   2125:       s|$cvsroot/||o;
                   2126:       if ($sym1) {
                   2127:         chop;
                   2128:         $_ .= " $sym1\n";
                   2129:       }
                   2130:     } elsif (m|^$f2 $cvsroot|o) {
                   2131:       s|$cvsroot/||o;
                   2132:
                   2133:       if ($sym2) {
                   2134:         chop;
                   2135:         $_ .= " $sym2\n";
                   2136:       }
                   2137:     }
                   2138:     print $_;
                   2139:   }
                   2140:   close($fh);
1.12      fenner   2141: }
                   2142:
3.1       knu      2143: ###############################
                   2144: # Show Logs ..
                   2145: ###############################
3.120     scop     2146: sub getDirLogs($$@)
                   2147: {
                   2148:   my ($cvsroot, $dirname, @otherFiles) = @_;
3.139     scop     2149:   my $tag = $input{only_with_tag};
                   2150:   my $DirName = "$cvsroot/$where";
3.120     scop     2151:
3.139     scop     2152:   my @files = &safeglob("$DirName/*,v");
                   2153:   push (@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
3.120     scop     2154:   foreach my $file (@otherFiles) {
                   2155:     push (@files, "$DirName/$file");
                   2156:   }
                   2157:
3.150     scop     2158:   # Weed out unreadable files.
                   2159:   my $i = 0;
                   2160:   my @unreadable = ();
                   2161:   while ($i < scalar(@files)) {
                   2162:     if (-r $files[$i]) {
                   2163:       $i++;
                   2164:     } else {
                   2165:       push(@unreadable, splice(@files, $i, 1));
                   2166:     }
                   2167:   }
                   2168:
3.139     scop     2169:   # If there are no files, we're done.
3.150     scop     2170:   return @unreadable unless @files;
3.120     scop     2171:
3.139     scop     2172:   my @cmd = ($CMD{rlog});
                   2173:   # Can't use -r<tag> as '-' is allowed in tagnames,
                   2174:   # but misinterpreted by rlog.
                   2175:   push(@cmd, '-r') unless defined($tag);
3.120     scop     2176:
3.139     scop     2177:   my $fh = do { local (*FH); };
                   2178:   if (!open($fh, '-|')) {            # Child
3.165     scop     2179:     open(STDERR, '>', devnull());    # Ignore rlog's complaints.
3.139     scop     2180:     openOutputFilter();
                   2181:     if ($file_list_len && $file_list_len > 1) {
                   2182:       while (scalar(@files) > $file_list_len) {  # Process files in chunks.
                   2183:         system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
                   2184:       }
3.120     scop     2185:     }
3.139     scop     2186:     exec(@cmd, @files) or exit -1;
                   2187:   }
                   2188:   undef @cmd;
3.120     scop     2189:
3.139     scop     2190:   my $state = 'start';
                   2191:   my ($date, $branchpoint, $branch, $log, @filetags);
3.152     scop     2192:   my ($rev, $revision, $revwanted, $filename, $head, $author, $keywordsubst);
3.120     scop     2193:
                   2194:   while (<$fh>) {
                   2195:     if ($state eq "start") {
                   2196:
                   2197:       #Next file. Initialize file variables
                   2198:       $rev         = '';
                   2199:       $revwanted   = '';
                   2200:       $branch      = '';
                   2201:       $branchpoint = '';
                   2202:       $filename    = '';
                   2203:       $log         = '';
                   2204:       $revision    = '';
                   2205:       %symrev      = ();
                   2206:       @filetags    = ();
3.152     scop     2207:       $keywordsubst= '';
3.120     scop     2208:
                   2209:       #jump to head state
                   2210:       $state = "head";
                   2211:     }
3.144     scop     2212:
3.120     scop     2213:     again:
                   2214:
                   2215:     if ($state eq "head") {
                   2216:
                   2217:       #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   2218:
                   2219:       if (/^Working file: (.+)$/) {
                   2220:         $filename = $1;
                   2221:       } elsif (/^head: (.+)$/) {
                   2222:         $head = $1;
                   2223:       } elsif (/^branch: (.+)$/) {
                   2224:         $branch = $1;
3.152     scop     2225:       } elsif (/^keyword substitution: (.+)$/) {
                   2226:         $keywordsubst = $1;
3.120     scop     2227:       } elsif (/^symbolic names:/) {
                   2228:         $state = "tags";
                   2229:         ($branch = $head) =~ s/\.\d+$//
                   2230:           if $branch eq '';
                   2231:         $branch =~ s/(\d+)$/0.$1/;
                   2232:         $symrev{MAIN}  = $branch;
                   2233:         $symrev{HEAD}  = $branch;
                   2234:         $alltags{MAIN} = 1;
                   2235:         $alltags{HEAD} = 1;
                   2236:         push (@filetags, "MAIN", "HEAD");
                   2237:       } elsif (/$LOG_REVSEPARATOR/o) {
                   2238:         $state = "log";
                   2239:         $rev   = '';
                   2240:         $date  = '';
                   2241:         $log   = '';
                   2242:
                   2243:         # Try to reconstruct the relative filename if RCS spits out a full path
                   2244:         $filename =~ s%^\Q$DirName\E/%%;
                   2245:       }
                   2246:       next;
                   2247:     }
                   2248:
                   2249:     if ($state eq "tags") {
                   2250:       if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
                   2251:         push (@filetags, $1);
                   2252:         $symrev{$1}  = $2;
                   2253:         $alltags{$1} = 1;
                   2254:         next;
                   2255:       } elsif (/^\S/) {
                   2256:
                   2257:         if (defined($tag)) {
                   2258:           if (defined($symrev{$tag}) || $tag eq "HEAD") {
                   2259:             $revwanted    = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
                   2260:             ($branch      = $revwanted) =~ s/\b0\.//;
                   2261:             ($branchpoint = $branch)    =~ s/\.?\d+$//;
                   2262:             $revwanted    = '' if ($revwanted ne $branch);
                   2263:           } elsif ($tag ne "HEAD") {
                   2264:             $state = "skip";
                   2265:             next;
                   2266:           }
                   2267:         }
                   2268:
                   2269:         foreach my $tagfound (@filetags) {
                   2270:           $tags{$tagfound} = 1;
                   2271:         }
                   2272:         $state = "head";
                   2273:         goto again;
                   2274:       }
                   2275:     }
                   2276:
                   2277:     if ($state eq "log") {
                   2278:       if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
                   2279:
                   2280:         # End of a log entry.
                   2281:         my $revbranch = $rev;
                   2282:         $revbranch =~ s/\.\d+$//;
                   2283:
                   2284:         if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
                   2285:             || !defined($tag))
                   2286:         {
                   2287:           $revwanted = $rev;
                   2288:         }
                   2289:
                   2290:         if ($revwanted ne ''
                   2291:             ? $rev eq $revwanted
                   2292:             : $branchpoint ne ''
                   2293:               ? $rev eq $branchpoint
                   2294:               : 0
                   2295:             && ($rev eq $head))
                   2296:         {    # Don't think head is needed here..
3.152     scop     2297:           my @finfo = ($rev, $date, $log, $author, $filename, $keywordsubst);
                   2298:           (my $name = $filename) =~ s%/.*%%;
3.120     scop     2299:           $fileinfo{$name} = [@finfo];
                   2300:           $state = "done" if ($rev eq $revwanted);
                   2301:         }
                   2302:         $rev  = '';
                   2303:         $date = '';
                   2304:         $log  = '';
                   2305:       } elsif ($date eq ''
                   2306:                && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|)
                   2307:       {
                   2308:         my $yr = $1;
                   2309:
                   2310:         # damn 2-digit year routines :-)
                   2311:         if ($yr > 100) {
                   2312:           $yr -= 1900;
                   2313:         }
                   2314:         $date = &Time::Local::timegm($6, $5, $4, $3, $2 - 1, $yr);
                   2315:         ($author) = /author: ([^;]+)/;
                   2316:         $state = "log";
                   2317:         $log   = '';
                   2318:         next;
                   2319:       } elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
                   2320:         $rev = $1;    # .*$ eats up the locker(lockers?) info, if any
                   2321:         next;
                   2322:       } else {
                   2323:         $log .= $_;
                   2324:       }
                   2325:     }
                   2326:
                   2327:     if (/$LOG_FILESEPARATOR/o) {
                   2328:       $state = "start";
                   2329:       next;
                   2330:     }
                   2331:   }
                   2332:
3.139     scop     2333:   my $linesread = $. || 0;
                   2334:   close($fh);
                   2335:
                   2336:   if ($linesread == 0) {
3.137     scop     2337:     fatal('500 Internal Error',
                   2338:           'Failed to spawn GNU rlog on <em>"%s"</em>.<br><br>Did you set the <b><code>$command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
3.150     scop     2339:           htmlquote(join(', ', @files)), $command_path);
3.120     scop     2340:   }
3.150     scop     2341:
                   2342:   return @unreadable;
3.120     scop     2343: }
                   2344:
                   2345: sub readLog($;$)
                   2346: {
                   2347:   my ($fullname, $revision) = @_;
                   2348:   my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   2349:   my $fh = do { local (*FH); };
                   2350:
3.144     scop     2351:   $revision = defined($revision) ? "-r$revision" : '';
3.120     scop     2352:
                   2353:   undef %symrev;
                   2354:   undef %revsym;
                   2355:   undef @allrevisions;
                   2356:   undef %date;
                   2357:   undef %author;
                   2358:   undef %state;
                   2359:   undef %difflines;
                   2360:   undef %log;
3.152     scop     2361:   $keywordsubstitution = '';
3.120     scop     2362:
                   2363:   if (!open($fh, "-|")) {    # child
                   2364:     if ($revision ne '') {
                   2365:       openOutputFilter();
                   2366:       exec($CMD{rlog}, $revision, $fullname) or exit -1;
                   2367:     } else {
                   2368:       openOutputFilter();
                   2369:       exec($CMD{rlog}, $fullname) or exit -1;
                   2370:     }
                   2371:   }
                   2372:
                   2373:   while (<$fh>) {
                   2374:     if ($symnames) {
                   2375:       if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   2376:         $symrev{$1} = $2;
3.152     scop     2377:         next;
3.120     scop     2378:       } else {
                   2379:         $symnames = 0;
                   2380:       }
3.152     scop     2381:     }
                   2382:     if (/^head:\s+([\d\.]+)/) {
3.120     scop     2383:       $head = $1;
                   2384:     } elsif (/^branch:\s+([\d\.]+)/) {
                   2385:       $curbranch = $1;
                   2386:     } elsif (/^symbolic names/) {
                   2387:       $symnames = 1;
3.152     scop     2388:     } elsif (/^keyword substitution: (.+)$/) {
                   2389:       $keywordsubstitution = $1;
3.120     scop     2390:     } elsif (/^-----/) {
                   2391:       last;
                   2392:     }
                   2393:   }
                   2394:   ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
                   2395:
                   2396:   # each log entry is of the form:
                   2397:   # ----------------------------
                   2398:   # revision 3.7.1.1
                   2399:   # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   2400:   # log info
                   2401:   # ----------------------------
                   2402:
                   2403:   # For a locked revision, the first line after the separator
                   2404:   # becomes smth like
3.149     scop     2405:   # revision 9.19       locked by: vassilii;
3.120     scop     2406:
                   2407:   logentry:
                   2408:
                   2409:   while (!/$LOG_FILESEPARATOR/o) {
                   2410:     $_ = <$fh>;
                   2411:     last logentry if (!defined($_));    # EOF
                   2412:     if (/^revision (\d+(?:\.\d+)+)/) {
                   2413:       $rev = $1;
                   2414:       unshift (@allrevisions, $rev);
                   2415:     } elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
                   2416:       next logentry;
                   2417:     } else {
                   2418:
                   2419:       # The rlog output is syntactically ambiguous.  We must
                   2420:       # have guessed wrong about where the end of the last log
                   2421:       # message was.
                   2422:       # Since this is likely to happen when people put rlog output
                   2423:       # in their commit messages, don't even bother keeping
                   2424:       # these lines since we don't know what revision they go with
                   2425:       # any more.
                   2426:       next logentry;
                   2427:     }
                   2428:     $_ = <$fh>;
                   2429:     if (
                   2430:       m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
                   2431:       )
                   2432:     {
                   2433:       my $yr = $1;
                   2434:
                   2435:       # damn 2-digit year routines :-)
                   2436:       if ($yr > 100) {
                   2437:         $yr -= 1900;
                   2438:       }
                   2439:       $date{$rev} = &Time::Local::timegm($6, $5, $4, $3, $2 - 1, $yr);
                   2440:       $author{$rev}    = $7;
                   2441:       $state{$rev}     = $8;
                   2442:       $difflines{$rev} = $10;
                   2443:     } else {
                   2444:       fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
                   2445:     }
                   2446:
                   2447:   line:
                   2448:     while (<$fh>) {
                   2449:       next line if (/^branches:\s/);
                   2450:       last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
                   2451:       $log{$rev} .= $_;
                   2452:     }
                   2453:   }
                   2454:   close($fh);
                   2455:
                   2456:   @revorder = reverse sort { revcmp($a, $b) } @allrevisions;
                   2457:
                   2458:   #
                   2459:   # HEAD is an artificial tag which is simply the highest tag number on the main
                   2460:   # branch, unless there is a branch tag in the RCS file in which case it's the
                   2461:   # highest revision on that branch.  Find it by looking through @revorder; it
                   2462:   # is the first commit listed on the appropriate branch.
                   2463:   # This is not neccesary the same revision as marked as head in the RCS file.
                   2464:   my $headrev = $curbranch || "1";
                   2465:   ($symrev{"MAIN"} = $headrev) =~ s/(\d+)$/0.$1/;
                   2466:
                   2467:   foreach $rev (@revorder) {
                   2468:     if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   2469:       $symrev{"HEAD"} = $rev;
                   2470:       last;
                   2471:     }
                   2472:   }
                   2473:   ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   2474:     if (!defined($symrev{"HEAD"}));
                   2475:
                   2476:   #
                   2477:   # Now that we know all of the revision numbers, we can associate
                   2478:   # absolute revision numbers with all of the symbolic names, and
                   2479:   # pass them to the form so that the same association doesn't have
                   2480:   # to be built then.
                   2481:   #
                   2482:   undef @branchnames;
                   2483:   undef %branchpoint;
                   2484:   undef $sel;
                   2485:
                   2486:   foreach (reverse sort keys %symrev) {
                   2487:     $rev = $symrev{$_};
                   2488:     if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
                   2489:       push (@branchnames, $_);
                   2490:
                   2491:       #
                   2492:       # A revision number of A.B.0.D really translates into
                   2493:       # "the highest current revision on branch A.B.D".
                   2494:       #
                   2495:       # If there is no branch A.B.D, then it translates into
                   2496:       # the head A.B .
                   2497:       #
                   2498:       # This reasoning also applies to the main branch A.B,
                   2499:       # with the branch number 0.A, with the exception that
                   2500:       # it has no head to translate to if there is nothing on
                   2501:       # the branch, but I guess this can never happen?
                   2502:       #
                   2503:       # (the code below gracefully forgets about the branch
                   2504:       # if it should happen)
                   2505:       #
                   2506:       $head = defined($2) ? $2 : "";
                   2507:       $branch = $3;
                   2508:       $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   2509:       my $regex;
                   2510:       $regex = quotemeta $branchrev;
                   2511:       $rev   = $head;
                   2512:
                   2513:       foreach my $r (@revorder) {
                   2514:         if ($r =~ /^${regex}\b/) {
                   2515:           $rev = $branchrev;
                   2516:           last;
                   2517:         }
                   2518:       }
                   2519:       next if ($rev eq "");
                   2520:
                   2521:       if ($rev ne $head && $head ne "") {
3.131     scop     2522:         $branchpoint{$head} .= ', ' if ($branchpoint{$head});
3.120     scop     2523:         $branchpoint{$head} .= $_;
                   2524:       }
                   2525:     }
                   2526:     $revsym{$rev} .= ", " if ($revsym{$rev});
                   2527:     $revsym{$rev} .= $_;
3.136     scop     2528:     $sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
                   2529:                     htmlquote($rev), (htmlquote($_)) x 2);
3.120     scop     2530:   }
                   2531:
                   2532:   my ($onlyonbranch, $onlybranchpoint);
                   2533:   if ($onlyonbranch = $input{'only_with_tag'}) {
                   2534:     $onlyonbranch = $symrev{$onlyonbranch};
                   2535:     if ($onlyonbranch =~ s/\b0\.//) {
                   2536:       ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   2537:     } else {
                   2538:       $onlybranchpoint = $onlyonbranch;
                   2539:     }
                   2540:
                   2541:     if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   2542:       fatal("404 Tag not found", 'Tag %s not defined',
3.131     scop     2543:             $input{'only_with_tag'});
3.120     scop     2544:     }
                   2545:   }
                   2546:
                   2547:   undef @revisions;
                   2548:
                   2549:   foreach (@allrevisions) {
                   2550:     ($br  = $_)  =~ s/\.\d+$//;
                   2551:     ($brp = $br) =~ s/\.\d+$//;
                   2552:     next if ($onlyonbranch
                   2553:              && $br ne $onlyonbranch
                   2554:              && $_  ne $onlybranchpoint);
                   2555:     unshift (@revisions, $_);
                   2556:   }
                   2557:
                   2558:   if ($logsort eq "date") {
                   2559:
                   2560:     # Sort the revisions in commit order an secondary sort on revision
                   2561:     # (secondary sort needed for imported sources, or the first main
                   2562:     # revision gets before the same revision on the 1.1.1 branch)
                   2563:     @revdisplayorder =
                   2564:       sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) } @revisions;
                   2565:   } elsif ($logsort eq "rev") {
                   2566:
                   2567:     # Sort the revisions in revision order, highest first
                   2568:     @revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
                   2569:   } else {
                   2570:
                   2571:     # No sorting. Present in the same order as rlog / cvs log
                   2572:     @revdisplayorder = @revisions;
                   2573:   }
                   2574:
                   2575: }
                   2576:
                   2577: sub printDiffLinks($$)
                   2578: {
                   2579:   my ($text, $url) = @_;
                   2580:   my @extra;
                   2581:
                   2582:   local $_;
                   2583:   for ($DIFFTYPES{$defaultDiffType}{'colored'} ? qw(u) : qw(h)) {
                   2584:     my $f = $_ eq $defaultDiffType ? '' : $_;
                   2585:
                   2586:     push @extra, &link(lc $DIFFTYPES{$_}{'descr'}, "$url&f=$f");
                   2587:   }
                   2588:
                   2589:   print &link($text, $url), ' (', join (', ', @extra), ')';
                   2590: }
                   2591:
                   2592: sub printLog($;$)
                   2593: {
                   2594:   my ($link, $br, $brp);
                   2595:   ($_, $link) = @_;
                   2596:   ($br  = $_)  =~ s/\.\d+$//;
                   2597:   ($brp = $br) =~ s/\.?\d+$//;
3.131     scop     2598:   my $prev;
3.120     scop     2599:
                   2600:   $link = 1 if (!defined($link));
3.131     scop     2601:   my $isDead = ($state{$_} eq 'dead');
                   2602:   my $isSelected = (defined($input{'r1'}) && $input{'r1'} eq $_);
3.120     scop     2603:
3.131     scop     2604:   print "<div class=\"diff-selected\">\n" if $isSelected;
3.120     scop     2605:   print "<p>\n";
3.131     scop     2606:
3.120     scop     2607:   if ($link && !$isDead) {
3.156     scop     2608:     (my $filename = $where) =~ s/^.*\///;
                   2609:     my $fileurl   = urlencode($filename);
                   2610:     my $mimetype  = getMimeType($filename);
                   2611:     my $viewable  = viewable($mimetype);
                   2612:
3.120     scop     2613:     print "<a name=\"rev$_\"></a>";
                   2614:
                   2615:     if (defined($revsym{$_})) {
                   2616:       foreach my $sym (split (", ", $revsym{$_})) {
3.136     scop     2617:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2618:       }
                   2619:     }
                   2620:
                   2621:     if (defined($revsym{$br})
                   2622:         && $revsym{$br}
                   2623:         && !defined($nameprinted{$br}))
                   2624:     {
                   2625:       foreach my $sym (split (", ", $revsym{$br})) {
3.136     scop     2626:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2627:       }
                   2628:       $nameprinted{$br} = 1;
                   2629:     }
                   2630:     print "\n Revision ";
                   2631:     &download_link($fileurl, $_, $_,
3.156     scop     2632:                    $viewable ? 'text/x-cvsweb-markup' : undef);
3.120     scop     2633:
3.161     scop     2634:     print ' / (';
                   2635:
3.156     scop     2636:     if ($viewable) {
3.120     scop     2637:       &download_link($fileurl, $_, "download", $mimetype);
                   2638:     }
                   2639:
3.156     scop     2640:     if ($mimetype ne 'text/plain') {
3.161     scop     2641:       print ' / ' if $viewable;
3.120     scop     2642:       &download_link($fileurl, $_, "as text", "text/plain");
                   2643:     }
                   2644:
3.156     scop     2645:     if (!$viewable) {
3.161     scop     2646:       print ' / ' if ($mimetype ne 'text/plain');
3.120     scop     2647:       &download_link($fileurl, $_, "view", "text/x-cvsweb-markup");
                   2648:     }
3.161     scop     2649:
                   2650:     print ')';
3.120     scop     2651:
                   2652:     if ($allow_annotate) {
                   2653:       print " - ";
                   2654:       print &link('annotate',
                   2655:                   sprintf('%s/%s?annotate=%s%s',
                   2656:                           $scriptname, urlencode($where), $_, $barequery));
                   2657:     }
                   2658:
                   2659:     # Plus a select link if enabled, and this version isn't selected
                   2660:     if ($allow_version_select) {
3.131     scop     2661:       print ' - ';
                   2662:       if ($isSelected) {
                   2663:         print '<b>[selected]</b>';
3.120     scop     2664:       } else {
3.159     scop     2665:         print &link('select&nbsp;for&nbsp;diffs',
3.131     scop     2666:                     sprintf('%s?r1=%s%s#rev%s',
                   2667:                             $scriptwhere, $_, $barequery, $_));
3.120     scop     2668:       }
                   2669:     }
                   2670:   } else {
                   2671:     print "Revision <b>$_</b>";
                   2672:   }
                   2673:
                   2674:   if (/^1\.1\.1\.\d+$/) {
                   2675:     print " <i>(vendor branch)</i>";
                   2676:   }
                   2677:   if (defined @mytz) {
                   2678:     my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2679:     print ", <i>", scalar localtime($date{$_}), " $est</i> (";
                   2680:   } else {
                   2681:     print ", <i>", scalar gmtime($date{$_}), " UTC</i> (";
                   2682:   }
3.136     scop     2683:   print readableTime(time() - $date{$_}, 1), ' ago)';
                   2684:   print ' by <i>', htmlquote($author{$_}), "</i>\n";
                   2685:
                   2686:   if ($revsym{$br}) {
                   2687:     printf "<br>Branch: <b>%s</b>\n",
                   2688:       $link ? link_tags($revsym{$br}) : htmlquote($revsym{$br});
                   2689:   }
                   2690:   if ($revsym{$_}) {
                   2691:     printf "<br>CVS Tags: <b>%s</b>\n",
                   2692:       $link ? link_tags($revsym{$_}) : htmlquote($revsym{$_});
                   2693:   }
                   2694:   if ($branchpoint{$_}) {
                   2695:     printf "<br>Branch point for: <b>%s</b>\n",
                   2696:       $link ? link_tags($branchpoint{$_}) : htmlquote($branchpoint{$_});
                   2697:   }
3.120     scop     2698:
                   2699:   # Find the previous revision
                   2700:   my @prevrev = split (/\./, $_);
                   2701:   do {
                   2702:     if (--$prevrev[$#prevrev] <= 0) {
                   2703:
                   2704:       # If it was X.Y.Z.1, just make it X.Y
                   2705:       pop (@prevrev);
                   2706:       pop (@prevrev);
                   2707:     }
                   2708:     $prev = join (".", @prevrev);
                   2709:   } until (defined($date{$prev}) || $prev eq "");
                   2710:
                   2711:   if ($prev ne "") {
                   2712:     if ($difflines{$_}) {
                   2713:       print "<br>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2714:     }
                   2715:   }
                   2716:
                   2717:   if ($isDead) {
                   2718:     print "<br><b><i>FILE REMOVED</i></b>\n";
                   2719:   } elsif ($link) {
                   2720:     my %diffrev = ();
                   2721:     $diffrev{$_} = 1;
                   2722:     $diffrev{""} = 1;
                   2723:     print '<br>';
                   2724:     my $diff = 'Diff';
                   2725:
                   2726:     #
                   2727:     # Offer diff to previous revision
                   2728:     if ($prev) {
                   2729:       $diffrev{$prev} = 1;
                   2730:
                   2731:       my $url =
                   2732:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $prev, $_, $barequery);
                   2733:
                   2734:       print $diff, " to previous ";
                   2735:       $diff = '';
                   2736:       printDiffLinks($prev, $url);
                   2737:     }
                   2738:
                   2739:     #
                   2740:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2741:     # offer a diff with the branch point.
                   2742:     if ($revsym{$brp}
                   2743:       && !/^1\.1\.1\.\d+$/
                   2744:       && !defined($diffrev{$brp}))
                   2745:     {
                   2746:       my $url =
                   2747:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $brp, $_, $barequery);
                   2748:
                   2749:       print $diff, " to branchpoint ";
                   2750:       $diff = '';
                   2751:       printDiffLinks($brp, $url);
                   2752:     }
                   2753:
                   2754:     #
                   2755:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2756:     # offer to diff with the next revision of the higher branch.
                   2757:     # (e.g. change gets committed and then brought
                   2758:     # over to -stable)
                   2759:     if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2760:       my ($i, $nextmain);
                   2761:
                   2762:       for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
                   2763:       }
                   2764:       my @tmp2 = split (/\./, $_);
                   2765:       for ($nextmain = ""; $i > 0; $i--) {
                   2766:         my $next = $revorder[$i - 1];
                   2767:         my @tmp1 = split (/\./, $next);
                   2768:
                   2769:         if (@tmp1 < @tmp2) {
                   2770:           $nextmain = $next;
                   2771:           last;
                   2772:         }
                   2773:
                   2774:         # Only the highest version on a branch should have
                   2775:         # a diff for the "next main".
                   2776:         last
                   2777:           if (@tmp1 - 1 <= @tmp2
                   2778:           && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
                   2779:           join (".", @tmp2[0 .. $#tmp1 - 1]));
                   2780:       }
                   2781:
                   2782:       if (!defined($diffrev{$nextmain})) {
                   2783:         $diffrev{$nextmain} = 1;
                   2784:
                   2785:         my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2786:           $scriptwhere, $nextmain, $_, $barequery);
                   2787:
                   2788:         print $diff, " next main ";
                   2789:         $diff = '';
                   2790:         printDiffLinks($nextmain, $url);
                   2791:       }
                   2792:     }
                   2793:
                   2794:     # Plus if user has selected only r1, then present a link
                   2795:     # to make a diff to that revision
                   2796:     if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2797:       $diffrev{$input{"r1"}} = 1;
                   2798:
                   2799:       my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2800:         $scriptwhere, $input{'r1'}, $_, $barequery);
                   2801:
                   2802:       print $diff, " to selected ";
                   2803:       $diff = '';
                   2804:       printDiffLinks($input{'r1'}, $url);
                   2805:     }
                   2806:
                   2807:   }
                   2808:   print "\n</p>\n<pre>\n";
                   2809:   print &htmlify($log{$_}, $allow_log_extra);
                   2810:   print "</pre>\n";
3.131     scop     2811:   print "</div>\n" if $isSelected;
3.120     scop     2812: }
                   2813:
3.132     scop     2814: #
                   2815: # Generates the HTML view for CvsGraph.
                   2816: #
                   2817: sub doGraphView($)
                   2818: {
                   2819:   my ($rev) = @_;
                   2820:
                   2821:   (my $pathname = $where) =~ s|[^/]*$||;
                   2822:   (my $filename = $where) =~ s|^.*/||;
                   2823:
                   2824:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'graph');
                   2825:
3.146     scop     2826:   my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3.132     scop     2827:   my $mapname = 'CvsGraphMap';
3.156     scop     2828:   my $ctype = viewable(getMimeType($filename)) ?
                   2829:     '&amp;content-type=text/x-cvsweb-markup' : '';
3.132     scop     2830:
3.151     scop     2831:   printf(<<EOF, $title, $mapname, $cvstree, $rev, $title);
3.146     scop     2832: <h3 style="text-align: center">%s</h3>
3.151     scop     2833: <div align="center"><img border="0" usemap="#%s" src="?cvsroot=%s&amp;graph=%s&amp;makeimage=1" alt="%s"></div>
3.146     scop     2834: EOF
3.132     scop     2835:
3.135     scop     2836:   my @graph_cmd =
                   2837:     ($CMD{cvsgraph},
                   2838:      '-r', $cvsroot,
                   2839:      '-i',
                   2840:      '-M', $mapname,
3.146     scop     2841:      '-x', 4,
                   2842:      "-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$barequery\\\"\"",
                   2843:      "-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery$ctype\\\"\"",
                   2844:      "-Omap_diff_href=\"href=\\\"%(%F%).diff" .
                   2845:      "?r1=%(%P%)&amp;r2=%(%R%)$barequery\\\"\"",
3.135     scop     2846:      );
3.132     scop     2847:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2848:
                   2849:   my $pipe = IO::Pipe->new();
                   2850:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2851:   while (<$pipe>) {
                   2852:     print;
                   2853:   }
                   2854:   $pipe = undef;
                   2855:
                   2856:   html_footer();
                   2857: }
                   2858:
                   2859: #
                   2860: # Generates a graph using CvsGraph.
                   2861: #
                   2862: sub doGraph($)
                   2863: {
                   2864:   my ($rev) = @_;
                   2865:
                   2866:   (my $pathname = $where) =~ s|[^/]*$||;
                   2867:   (my $filename = $where) =~ s|^.*/||;
                   2868:
                   2869:   http_header('image/png');
                   2870:
                   2871:   my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot);
                   2872:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2873:
                   2874:   my $pipe = IO::Pipe->new();
                   2875:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2876:   {
                   2877:     local $/ = undef;
                   2878:     binmode(\*STDOUT);
                   2879:     print <$pipe>;
                   2880:   }
                   2881:   $pipe = undef;
                   2882: }
                   2883:
                   2884:
3.120     scop     2885: sub doLog($)
                   2886: {
                   2887:   my ($fullname) = @_;
                   2888:
                   2889:   readLog($fullname);
                   2890:
                   2891:   html_header("CVS log for $where");
3.144     scop     2892:
                   2893:   (my $upwhere  = $where) =~ s|(Attic/)?[^/]+$||;
                   2894:   (my $filename = $where) =~ s|^.*/||;
                   2895:   my $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2896:
3.120     scop     2897:   print "<p>\n ";
                   2898:   print &link($backicon, "$backurl#$filename"), " <b>Up to ",
                   2899:     &clickablePath($upwhere, 1), "</b>\n</p>\n";
                   2900:   print "<p>\n ";
                   2901:   print &link('Request diff between arbitrary revisions', '#diff');
3.132     scop     2902:   if ($allow_cvsgraph) {
                   2903:     print ' / ', &graph_link('', 1, 'Display revisions graphically');
                   2904:   }
3.120     scop     2905:   print "\n</p>\n<hr noshade>\n";
                   2906:
                   2907:   print "<p>\n";
3.152     scop     2908:
                   2909:   my $explain = $keywordsubstitution =~ /b/ ?
                   2910:     ' (i.e.: CVS considers this a binary file)' : '';
                   2911:   print "Keyword substitution: $keywordsubstitution$explain<br>\n";
3.144     scop     2912:   print $curbranch
                   2913:     ? ("Default branch: ", ($revsym{$curbranch} || $curbranch))
                   2914:     : "No default branch";
3.120     scop     2915:   print "<br>\n";
                   2916:
3.153     scop     2917:   print 'Current tag: ', htmlquote($input{only_with_tag}), "<br>\n"
                   2918:     if $input{only_with_tag};
3.120     scop     2919:   print "</p>\n";
                   2920:
                   2921:   undef %nameprinted;
                   2922:
                   2923:   for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2924:     print "<hr size=\"1\" noshade>\n";
                   2925:     printLog($revdisplayorder[$i]);
                   2926:   }
                   2927:
3.144     scop     2928:   printf(<<EOF, $scriptwhere);
                   2929: <hr noshade>
                   2930: <p>
                   2931:  <a name="diff">
                   2932:   This form allows you to request diff's between any two revisions of a file.
                   2933:   You may select a symbolic revision name using the selection box or you may
                   2934:   type in a numeric name using the type-in text box.
                   2935:  </a>
                   2936: </p>
                   2937: <form method="get" action="%s.diff" name="diff_select">
                   2938: EOF
3.120     scop     2939:
                   2940:   foreach (@stickyvars) {
3.154     scop     2941:     printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   2942:            $_, htmlquote($input{$_}))
3.120     scop     2943:       if (defined($input{$_})
                   2944:           && ((!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_})
                   2945:               && $input{$_} ne ""));
                   2946:   }
3.144     scop     2947:
                   2948:   print <<EOF;
                   2949: <table style="border: none">
                   2950: <tr>
                   2951: <td align="right">
                   2952: <label for="r1" accesskey="1">Diffs between </label>
                   2953: <select id="r1" name="r1">
                   2954: <option value="text" selected>Use Text Field</option>
                   2955: EOF
                   2956:   print $sel, "</select>\n";
                   2957:
                   2958:   my $diffrev = defined($input{r1}) ?
                   2959:     $input{r1} : $revdisplayorder[$#revdisplayorder];
                   2960:
                   2961:   printf(<<EOF, $inputTextSize, $diffrev);
3.147     scop     2962: <input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0">
3.144     scop     2963: </td>
                   2964: <td><br></td>
                   2965: </tr><tr>
                   2966: <td align="right">
                   2967: <label for="r2" accesskey="2">and </label>
                   2968: <select id="r2" name="r2">
                   2969: <option value="text" selected>Use Text Field</option>
                   2970: EOF
                   2971:   print $sel, "</select>\n";
                   2972:
                   2973:   $diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
                   2974:
                   2975:   printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
                   2976: <input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0">
                   2977: </td>
                   2978: <td><input type="submit" value="  Get Diffs  " accesskey="G"></td>
                   2979: </tr>
                   2980: </table>
                   2981: </form>
                   2982: <hr noshade>
                   2983: <form method="get" action="%s">
                   2984: <table style="border: none">
                   2985: <tr>
                   2986:  <td align="right">
                   2987:   <label for="f" accesskey="D">Preferred Diff type:</label>
                   2988:  </td><td>
                   2989: EOF
                   2990:
3.120     scop     2991:   printDiffSelect($use_java_script);
3.144     scop     2992:
                   2993:   print <<EOF;
                   2994:  </td>
                   2995:  <td></td>
                   2996: </tr>
                   2997: EOF
3.120     scop     2998:
                   2999:   if (@branchnames) {
3.144     scop     3000:
                   3001:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3002: <tr>
                   3003: <td align="right">
                   3004: <label for="only_with_tag" accesskey="B">View only Branch:</label>
                   3005: </td><td>
                   3006: <a name="branch"></a>
                   3007: <select id="only_with_tag" name="only_with_tag"%s>
                   3008: EOF
                   3009:     print '<option value=""';
                   3010:     print ' selected'
                   3011:       if (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq '');
3.120     scop     3012:     print ">Show all branches</option>\n";
                   3013:
                   3014:     foreach (reverse sort @branchnames) {
3.136     scop     3015:       my $selected =
                   3016:         (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq $_);
                   3017:       printf("<option%s>%s</option>\n",
                   3018:              $selected ? ' selected' : '',
                   3019:              htmlquote($_));
3.120     scop     3020:     }
3.144     scop     3021:     print <<EOF
                   3022: </select>
                   3023: </td>
                   3024: <td></td>
                   3025: </tr>
                   3026: EOF
3.120     scop     3027:   }
                   3028:
3.144     scop     3029:   print <<EOF;
                   3030:  <tr>
                   3031:   <td align="right">
                   3032:    <a name="logsort"></a>
                   3033:    <label for="logsort" accesskey="L">Sort log by:</label>
                   3034:   </td><td>
                   3035: EOF
3.120     scop     3036:   printLogSortSelect($use_java_script);
3.144     scop     3037:   print <<EOF;
                   3038:   </td>
                   3039:   <td><input type="submit" value="  Set  " accesskey="S"></td>
                   3040:  </tr>
                   3041: </table>
                   3042: EOF
3.154     scop     3043:   foreach (@stickyvars) {
                   3044:     next if ($_ eq "f");
                   3045:     next if ($_ eq "only_with_tag");
                   3046:     next if ($_ eq "logsort");
                   3047:     printf("<input type=\"hidden\" name=\"$_\" value=\"%s\">\n",
                   3048:            htmlquote($input{$_}))
                   3049:       if (defined($input{$_})
                   3050:           && (!defined($DEFAULTVALUE{$_})
                   3051:               || $input{$_} ne $DEFAULTVALUE{$_})
                   3052:           && $input{$_} ne "");
                   3053:   }
                   3054:   print "</form>\n";
3.120     scop     3055:   html_footer();
                   3056: }
                   3057:
                   3058: sub flush_diff_rows($$$$)
                   3059: {
                   3060:   my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
                   3061:
                   3062:   if (!defined($state)) {
                   3063:     return;
                   3064:   }
                   3065:
                   3066:   if ($state eq "PreChangeRemove") {    # we just got remove-lines before
3.133     scop     3067:     for (my $j = 0; $j < $leftRow; $j++) {
3.144     scop     3068:       printf(<<EOF, scalar(@$leftColRef[$j]));
                   3069: <tr>
                   3070:  <td class="diff-removed">&nbsp;%s</td>
                   3071:  <td class="diff-empty">&nbsp;</td>
                   3072: </tr>
                   3073: EOF
3.120     scop     3074:     }
                   3075:   } elsif ($state eq "PreChange") {     # state eq "PreChange"
                   3076:                                         # we got removes with subsequent adds
                   3077:
3.133     scop     3078:     for (my $j = 0; $j < $leftRow || $j < $rightRow; $j++) {  # dump both cols
3.120     scop     3079:       print "<tr>\n";
                   3080:       if ($j < $leftRow) {
                   3081:         print "<td class=\"diff-changed\">&nbsp;@$leftColRef[$j]</td>";
                   3082:       } else {
                   3083:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3084:       }
                   3085:       print "\n";
                   3086:
                   3087:       if ($j < $rightRow) {
                   3088:         print "<td class=\"diff-changed\">&nbsp;@$rightColRef[$j]</td>";
                   3089:       } else {
                   3090:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3091:       }
                   3092:       print "\n</tr>\n";
                   3093:     }
                   3094:   }
3.1       knu      3095: }
                   3096:
                   3097: ##
                   3098: # Function to generate Human readable diff-files
                   3099: # human_readable_diff(String revision_to_return_to);
                   3100: ##
3.144     scop     3101: sub human_readable_diff($$)
3.120     scop     3102: {
                   3103:   my ($fh, $rev) = @_;
3.144     scop     3104:
3.120     scop     3105:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   3106:
3.144     scop     3107:   (my $where_nd       = $where)       =~ s/.diff$//;
                   3108:   (my $filename       = $where_nd)    =~ s/^.*\///;
                   3109:   (my $pathname       = $where_nd)    =~ s/(Attic\/)?[^\/]*$//;
                   3110:   (my $scriptwhere_nd = $scriptwhere) =~ s/.diff$//;
3.120     scop     3111:
3.133     scop     3112:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3.120     scop     3113:
                   3114:   # Read header to pick up read revision and date, if possible
                   3115:   while (<$fh>) {
                   3116:     ($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   3117:     ($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   3118:     last if (/^\+\+\+ /);
                   3119:   }
                   3120:
                   3121:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   3122:     $rev1  = $r1r;
                   3123:     $date1 = $r1d;
                   3124:   }
                   3125:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   3126:     $rev2  = $r2r;
                   3127:     $date2 = $r2d;
                   3128:   }
                   3129:
3.144     scop     3130:   # Using <table style=\"border: none\" here breaks NS 4.x badly...
                   3131:   printf(<<EOF, $where_nd, $rev1, $rev2, $rev1);
                   3132: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
3.147     scop     3133: <table border="0" cellspacing="0" cellpadding="0" width="100%%">
3.144     scop     3134: <tr style="background-color: #ffffff">
3.147     scop     3135: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3136: EOF
                   3137:   print ', ', $date1 if defined($date1);
                   3138:   print "<br>Tag: $sym1\n" if $sym1;
                   3139:   printf(<<EOF, $rev2);
                   3140: </th>
3.147     scop     3141: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3142: EOF
                   3143:   print ', ', $date2 if defined($date2);
                   3144:   print "<br>Tag: $sym2\n" if $sym2;
3.120     scop     3145:   print "</th>\n";
                   3146:
                   3147:   # Process diff text
                   3148:   # prefetch several lines
                   3149:   my @buf = head($fh);
3.144     scop     3150:   my %d = scan_directives(@buf);
3.120     scop     3151:
3.144     scop     3152:   my $leftRow  = 0;
                   3153:   my $rightRow = 0;
                   3154:   my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
                   3155:   my ($diffcode, $rest);
3.120     scop     3156:
                   3157:   while (@buf || !eof($fh)) {
                   3158:     $difftxt = @buf ? shift @buf : <$fh>;
                   3159:
                   3160:     if ($difftxt =~ /^@@/) {
                   3161:       ($oldline, $newline, $funname) =
                   3162:         $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   3163:       $funname = htmlquote($funname);
                   3164:       $funname =~ s/\s/&nbsp;/go;
3.144     scop     3165:
                   3166:       printf(<<EOF, $oldline, $funname, $newline, $funname);
                   3167: <tr class="diff-heading">
3.147     scop     3168: <td width="50%%">
                   3169:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3170:   <tr>
                   3171:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3172:   </tr>
                   3173:  </table>
3.147     scop     3174: </td><td width="50%%">
                   3175:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3176:   <tr>
                   3177:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3178:   </tr>
                   3179:  </table>
                   3180: </td>
                   3181: EOF
                   3182:
3.120     scop     3183:       $state    = "dump";
                   3184:       $leftRow  = 0;
                   3185:       $rightRow = 0;
                   3186:     } else {
                   3187:       ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
                   3188:       $_ = spacedHtmlText($rest, $d{'tabstop'});
                   3189:
                   3190:       #########
                   3191:       # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   3192:       # in order to get some nice 'ediff'-mode output
                   3193:       # states:
                   3194:       #  "dump"             - just dump the value
                   3195:       #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   3196:       #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   3197:       ##########
                   3198:
                   3199:       if ($diffcode eq '+') {
                   3200:         if ($state eq "dump")
                   3201:         {    # 'change' never begins with '+': just dump out value
3.144     scop     3202:           printf(<<EOF, $_);
                   3203: <tr>
                   3204:  <td class="diff-empty">&nbsp;</td>
                   3205:  <td class="diff-added">&nbsp;%s</td>
                   3206: </tr>
                   3207: EOF
3.120     scop     3208:         } else {    # we got minus before
                   3209:           $state = "PreChange";
                   3210:           $rightCol[$rightRow++] = $_;
                   3211:         }
                   3212:       } elsif ($diffcode eq '-') {
                   3213:         $state = "PreChangeRemove";
                   3214:         $leftCol[$leftRow++] = $_;
                   3215:       } else {    # empty diffcode
                   3216:         flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3.147     scop     3217:         printf(<<EOF, $_, $_);
3.144     scop     3218: <tr>
                   3219:  <td class="diff-same">&nbsp;%s</td>
                   3220:  <td class="diff-same">&nbsp;%s</td>
                   3221: </tr>
                   3222: EOF
3.120     scop     3223:         $state    = "dump";
                   3224:         $leftRow  = 0;
                   3225:         $rightRow = 0;
                   3226:       }
                   3227:     }
                   3228:   }
                   3229:   close($fh);
                   3230:
                   3231:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   3232:
                   3233:   # state is empty if we didn't have any change
                   3234:   if (!$state) {
3.144     scop     3235:     print <<EOF;
                   3236: <tr>
                   3237:  <td colspan="2">&nbsp;</td>
                   3238: </tr>
                   3239: <tr class="diff-empty">
                   3240:  <td colspan="2" align="center"><b>- No viewable change -</b></td>
                   3241: </tr>
                   3242: EOF
3.120     scop     3243:   }
                   3244:
3.144     scop     3245:   printf(<<EOF, $scriptwhere, $rev1, $rev2);
                   3246: </table>
3.147     scop     3247: <hr style="width: 100%%" noshade>
3.144     scop     3248: <form method="get" action="%s">
                   3249: <table style="border: none">
                   3250: <tr>
                   3251: <td>
                   3252:  <table border="1">
                   3253:   <tr>
                   3254:    <td>
                   3255:     Legend:<br>
                   3256:     <table style="border: none" cellspacing="0" cellpadding="1">
                   3257:      <tr>
                   3258:       <td align="center" class="diff-removed">Removed from v.%s</td>
                   3259:       <td class="diff-empty">&nbsp;</td>
                   3260:      </tr><tr class="diff-changed">
                   3261:       <td align="center" colspan="2">changed lines</td>
                   3262:      </tr><tr>
                   3263:       <td class="diff-empty">&nbsp;</td>
                   3264:       <td align="center" class="diff-added">Added in v.%s</td>
                   3265:      </tr>
                   3266:     </table>
                   3267:    </td>
                   3268:   </tr>
                   3269:  </table>
                   3270: </td>
                   3271: <td>
                   3272: EOF
3.120     scop     3273:
                   3274:   # Print format selector
                   3275:   foreach my $var (keys %input) {
                   3276:     next if ($var eq "f");
                   3277:     next if (defined($DEFAULTVALUE{$var})
                   3278:              && $DEFAULTVALUE{$var} eq $input{$var});
                   3279:     print "<input type=\"hidden\" name=\"", urlencode($var), "\" value=\"",
                   3280:       urlencode($input{$var}), "\">\n";
                   3281:   }
                   3282:   printDiffSelect($use_java_script);
                   3283:
3.144     scop     3284:   print <<EOF;
                   3285: <input type="submit" value="Show">
                   3286: </td>
                   3287: </tr>
                   3288: </table>
                   3289: </form>
                   3290: EOF
3.120     scop     3291: }
3.167   ! scop     3292:
        !          3293:
        !          3294: sub doEnscript($$$)
        !          3295: {
        !          3296:   my ($filehandle, $highlight, $linenumbers) = @_;
        !          3297:
        !          3298:   my $reader = do { local (*FH); };
        !          3299:   my $writer = do { local (*FH); };
        !          3300:   my $ln = 0;
        !          3301:
        !          3302:   open2($reader, $writer, $CMD{enscript}, @enscript_options,
        !          3303:         qw(-q --language=cvsweb -o -),
        !          3304:         "--highlight=$highlight",
        !          3305:         '-')
        !          3306:     or fatal('500 Internal Error',
        !          3307:              'Fatal Error - unable to open Enscript for colorization');
        !          3308:
        !          3309:   while (<$filehandle>) {
        !          3310:     print $writer $_;
        !          3311:   }
        !          3312:   close($writer);
        !          3313:   while (<$reader>) {
        !          3314:     if ($linenumbers) {
        !          3315:       $ln++;
        !          3316:       printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
        !          3317:     }
        !          3318:     print $_;
        !          3319:   }
        !          3320:   close($reader);
        !          3321: }
        !          3322:
3.120     scop     3323:
3.163     scop     3324: sub navigateHeader($$$$$;$)
3.120     scop     3325: {
3.163     scop     3326:   my ($swhere, $path, $filename, $rev, $title, $moddate) = @_;
3.120     scop     3327:   $swhere = "" if ($swhere eq $scriptwhere);
                   3328:   $swhere = './' . urlencode($filename) if ($swhere eq "");
                   3329:
3.136     scop     3330:   my $qfile = htmlquote($filename);
                   3331:   my $qpath = htmlquote($path);
3.100     knu      3332:
3.163     scop     3333:   http_header('', $moddate);
3.133     scop     3334:
3.120     scop     3335:   print <<EOF;
3.100     knu      3336: $HTML_DOCTYPE
3.89      knu      3337: <html>
                   3338: <head>
3.136     scop     3339: <title>$qpath$qfile - $title - $rev</title>
3.144     scop     3340: $HTML_META$CSS</head>
3.129     scop     3341: <body class="src">
                   3342: <table width="100%" class="navigate-header" style="border: none" cellspacing="0" cellpadding="1">
3.144     scop     3343:  <tr valign="bottom">
                   3344:   <td>
3.64      knu      3345: EOF
                   3346:
3.120     scop     3347:   print &link($backicon, "$swhere$query#rev$rev");
3.136     scop     3348:   printf '<b>Return to %s CVS log',
                   3349:     &link(htmlquote($filename), "$swhere$query#rev$rev");
3.120     scop     3350:   print "</b> $fileicon</td>";
                   3351:
3.144     scop     3352:   printf(<<EOF, $diricon, &clickablePath($path, 1));
                   3353:   <td align="right">%s <b>Up to %s</b></td>
                   3354:  </tr>
                   3355: </table>
                   3356: EOF
3.120     scop     3357: }
                   3358:
                   3359: sub plural_write($$)
                   3360: {
                   3361:   my ($num, $text) = @_;
                   3362:   if ($num != 1) {
                   3363:     $text .= "s";
                   3364:   }
                   3365:
                   3366:   if ($num > 0) {
                   3367:     return join (' ', $num, $text);
                   3368:   } else {
                   3369:     return "";
                   3370:   }
3.1       knu      3371: }
                   3372:
                   3373: ##
                   3374: # print readable timestamp in terms of
                   3375: # '..time ago'
                   3376: # H. Zeller <zeller@think.de>
                   3377: ##
3.120     scop     3378: sub readableTime($$)
                   3379: {
                   3380:   my ($secs, $long) = @_;
                   3381:
                   3382:   # this function works correct for time >= 2 seconds
                   3383:   if ($secs < 2) {
                   3384:     return "very little time";
                   3385:   }
                   3386:
                   3387:   my %desc = (
3.133     scop     3388:               1        => 'second',
                   3389:               60       => 'minute',
                   3390:               3600     => 'hour',
                   3391:               86400    => 'day',
                   3392:               604800   => 'week',
                   3393:               2628000  => 'month',
                   3394:               31536000 => 'year'
                   3395:              );
                   3396:
3.120     scop     3397:   my @breaks = sort { $a <=> $b } keys %desc;
3.133     scop     3398:   my $i = 0;
3.120     scop     3399:
                   3400:   while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
                   3401:     $i++;
                   3402:   }
                   3403:   $i--;
3.133     scop     3404:   my $break  = $breaks[$i];
                   3405:   my $retval = plural_write(int($secs / $break), $desc{$break});
3.120     scop     3406:
                   3407:   if ($long == 1 && $i > 0) {
                   3408:     my $rest = $secs % $break;
                   3409:     $i--;
                   3410:     $break = $breaks[$i];
                   3411:     my $resttime = plural_write(int($rest / $break), $desc{$break});
                   3412:     if ($resttime) {
                   3413:       $retval .= ", $resttime";
                   3414:     }
                   3415:   }
3.1       knu      3416:
3.120     scop     3417:   return $retval;
3.1       knu      3418: }
                   3419:
                   3420: ##
                   3421: # clickablePath(String pathname, boolean last_item_clickable)
                   3422: #
                   3423: # returns a html-ified path whereas each directory is a link for
                   3424: # faster navigation. last_item_clickable controls whether the
                   3425: # basename (last directory/file) is a link as well
                   3426: ##
3.120     scop     3427: sub clickablePath($$)
                   3428: {
                   3429:   my ($pathname, $clickLast) = @_;
                   3430:
3.154     scop     3431:   my $root = '[' . htmlquote($CVSROOTdescr{$cvstree} || $cvstree) . ']';
                   3432:
3.144     scop     3433:   # This should never happen (see chooseCVSRoot()), but let's be sure...
3.154     scop     3434:   return $root if ($pathname eq '/');
3.120     scop     3435:
3.144     scop     3436:   my $retval =
3.154     scop     3437:     ' ' . &link($root, sprintf('%s/%s#dirlist', $scriptname, $query));
3.144     scop     3438:   my $wherepath = '';
                   3439:   my ($lastslash) = $pathname =~ m|/$|;
                   3440:
                   3441:   foreach (split (/\//, $pathname)) {
                   3442:     $retval .= ' / ';
                   3443:     $wherepath .= "/$_";
                   3444:     my $last = "$wherepath/" eq "/$pathname" || $wherepath eq "/$pathname";
                   3445:
                   3446:     if ($clickLast || !$last) {
                   3447:       $retval .= &link(htmlquote($_),
                   3448:                        join ('',
                   3449:                              $scriptname, urlencode($wherepath),
                   3450:                              (!$last || $lastslash ? '/' : ''), $query,
                   3451:                              (!$last || $lastslash ? "#dirlist" : "")));
                   3452:     } else {    # do not make a link to the current dir
                   3453:       $retval .= htmlquote($_);
3.120     scop     3454:     }
                   3455:   }
                   3456:   return $retval;
                   3457: }
                   3458:
3.144     scop     3459:
3.120     scop     3460: sub chooseCVSRoot()
                   3461: {
                   3462:
                   3463:   print "<form method=\"get\" action=\"${scriptwhere}\">\n";
                   3464:   if (2 <= @CVSROOT) {
3.133     scop     3465:     foreach my $k (keys %input) {
3.154     scop     3466:       printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   3467:              htmlquote($k), htmlquote($input{$k}))
                   3468:         if ($input{$k} && $k ne 'cvsroot');
3.120     scop     3469:     }
                   3470:
                   3471:     # Form-Elements look wierd in Netscape if the background
                   3472:     # isn't gray and the form elements are not placed
                   3473:     # within a table ...
3.144     scop     3474:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3475: <table style="border: none">
                   3476: <tr>
                   3477: <td><label for="cvsroot" accesskey="C">CVS Root:</label></td>
                   3478: <td>
                   3479: <select id="cvsroot" name="cvsroot"%s>
                   3480: EOF
3.120     scop     3481:
3.133     scop     3482:     foreach my $k (@CVSROOT) {
3.136     scop     3483:       printf("<option value=\"%s\"%s>%s</option>\n",
                   3484:              htmlquote($k),
                   3485:              ($k eq $cvstree) ? ' selected' : '',
                   3486:              htmlquote($CVSROOTdescr{$k} || $k));
3.120     scop     3487:     }
                   3488:     print "</select>\n</td>\n<td>";
                   3489:   } else {
                   3490:
                   3491:     # no choice -- but we need the form to select module/path,
                   3492:     # at least for Netscape
3.154     scop     3493:     printf "<p>\nCVS Root: <b>[%s]</b>",
                   3494:       htmlquote($CVSROOTdescr{$cvstree} || $cvstree);
3.120     scop     3495:   }
                   3496:
3.144     scop     3497:   print <<EOF;
                   3498: <label for="mpath" accesskey="M">
                   3499: Module path or alias:
                   3500: <input type="text" id="mpath" name="path" value="" size="15">
                   3501: </label>
                   3502: <input type="submit" value="Go" accesskey="O">
                   3503: EOF
3.120     scop     3504:
3.144     scop     3505:   print 2 <= @CVSROOT ? "</td>\n</tr>\n</table>" : '</p>';
3.120     scop     3506:   print "\n</form>";
                   3507: }
                   3508:
                   3509: sub chooseMirror()
                   3510: {
                   3511:
                   3512:   # This code comes from the original BSD-cvsweb
                   3513:   # and may not be useful for your site; If you don't
                   3514:   # set %MIRRORS this won't show up, anyway.
                   3515:   scalar(%MIRRORS) or return;
                   3516:
                   3517:   # Should perhaps exclude the current site somehow...
                   3518:   print "\n<p>\nThis CVSweb is mirrored in\n";
                   3519:
                   3520:   my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
                   3521:   my $tmp = pop (@tmp);
                   3522:
                   3523:   if (scalar(@tmp)) {
                   3524:     print join (', ', @tmp), ' and ';
                   3525:   }
                   3526:
                   3527:   print "$tmp.\n</p>\n";
                   3528: }
                   3529:
                   3530: sub fileSortCmp()
                   3531: {
                   3532:   my ($comp) = 0;
                   3533:   my ($c, $d, $af, $bf);
                   3534:
                   3535:   ($af = $a) =~ s/,v$//;
                   3536:   ($bf = $b) =~ s/,v$//;
                   3537:   my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
                   3538:     if (defined($fileinfo{$af}));
                   3539:   my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
                   3540:     if (defined($fileinfo{$bf}));
                   3541:
3.140     scop     3542:   if (defined($filename1) && defined($filename2) &&
                   3543:       $af eq $filename1   && $bf eq $filename2)
3.120     scop     3544:   {
                   3545:
                   3546:     # Two files
3.140     scop     3547:     $comp = -revcmp($rev1, $rev2)             if ($byrev  && $rev1  && $rev2);
                   3548:     $comp = ($date2   <=> $date1)             if ($bydate && $date1 && $date2);
                   3549:     if ($input{ignorecase}) {
                   3550:       $comp = (uc($log1)    cmp uc($log2))    if ($bylog && $log1 && $log2);
                   3551:       $comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
                   3552:                                                   $author1 && $author2);
                   3553:     } else {
                   3554:       $comp = ($log1    cmp $log2)            if ($bylog && $log1 && $log2);
                   3555:       $comp = ($author1 cmp $author2)         if ($byauthor &&
                   3556:                                                   $author1 && $author2);
                   3557:     }
3.120     scop     3558:   }
                   3559:
                   3560:   if ($comp == 0) {
                   3561:
                   3562:     # Directories first, then files under version control,
                   3563:     # then other, "rogue" files.
                   3564:     # Sort by filename if no other criteria available.
                   3565:
                   3566:     my $ad = (
                   3567:       (-d "$fullname/$a")
                   3568:       ? 'D'
                   3569:       : (defined($fileinfo{$af}) ? 'F' : 'R')
                   3570:     );
                   3571:     my $bd = (
                   3572:       (-d "$fullname/$b")
                   3573:       ? 'D'
                   3574:       : (defined($fileinfo{$bf}) ? 'F' : 'R')
                   3575:     );
                   3576:     ($c = $a) =~ s|.*/||;
                   3577:     ($d = $b) =~ s|.*/||;
3.144     scop     3578:
                   3579:     my ($l, $r) = ("$ad$c", "$bd$d");
                   3580:     $comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
                   3581:
                   3582:     # Parent dir is always first, then Attic.
                   3583:     if ($comp != 0) {
                   3584:       if ($l eq 'D..') {
3.149     scop     3585:         $comp = -1;
3.144     scop     3586:       } elsif ($r eq 'D..') {
3.149     scop     3587:         $comp = 1;
3.144     scop     3588:       } elsif ($l eq 'DAttic') {
3.149     scop     3589:         $comp = -1;
3.144     scop     3590:       } elsif ($r eq 'DAttic') {
3.149     scop     3591:         $comp = 1;
3.144     scop     3592:       }
                   3593:     }
3.120     scop     3594:   }
                   3595:   return $comp;
3.1       knu      3596: }
                   3597:
                   3598: # make A url for downloading
3.120     scop     3599: sub download_url($$;$)
                   3600: {
                   3601:   my ($url, $revision, $mimetype) = @_;
3.1       knu      3602:
3.120     scop     3603:   $revision =~ s/\b0\.//;
3.1       knu      3604:
3.146     scop     3605:   if (defined($checkoutMagic) &&
                   3606:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3607:   {
                   3608:     my $path = $where;
                   3609:     $path =~ s|[^/]+$||;
                   3610:     $url = "$scriptname/$checkoutMagic/${path}$url";
                   3611:   }
                   3612:   $url .= "?rev=$revision";
                   3613:   $url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
3.67      knu      3614:
3.120     scop     3615:   $url;
3.1       knu      3616: }
                   3617:
3.12      knu      3618: # Presents a link to download the
3.1       knu      3619: # selected revision
3.120     scop     3620: sub download_link($$$;$)
                   3621: {
                   3622:   my ($url, $revision, $textlink, $mimetype) = @_;
                   3623:   my ($fullurl) = download_url($url, $revision, $mimetype);
                   3624:
                   3625:   $fullurl =~ s/:/sprintf("%%%02x", ord($&))/eg;
                   3626:
3.159     scop     3627:   printf '<a href="%s" class="download-link"', hrefquote("$fullurl$barequery");
3.120     scop     3628:
3.146     scop     3629:   if ($open_extern_window &&
                   3630:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3631:   {
                   3632:     print ' target="cvs_checkout"';
                   3633:
                   3634:     # we should have
                   3635:     #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   3636:     # in order to allow the user to resize the window; otherwise
                   3637:     # the user may resize the window, but on next checkout - zap -
                   3638:     # its original (configured s. cvsweb.conf) size is back again
                   3639:     # .. annoying (if $extern_window_(width|height) is defined)
                   3640:     # but this if (..) solution is far from perfect
                   3641:     # what we need to do as well is
                   3642:     # 1) save cvswin in an invisible frame that always exists
                   3643:     #    (document.cvswin will be void on next load)
                   3644:     # 2) on close of the cvs_checkout - window set the cvswin
                   3645:     #    variable to 'null' again - so that it will be
                   3646:     #    reopenend with the configured size
                   3647:     # anyone a JavaScript programmer ?
                   3648:     # .. so here without if (..):
                   3649:     # currently, the best way is to comment out the size parameters
                   3650:     # ($extern_window...) in cvsweb.conf.
                   3651:     if ($use_java_script) {
3.159     scop     3652:       my @attr = qw(resizable scrollbars menubar);
3.120     scop     3653:
                   3654:       push @attr, qw(status toolbar)
                   3655:         if (defined($mimetype) && $mimetype eq "text/html");
                   3656:
                   3657:       push @attr, "width=$extern_window_width"
                   3658:         if (defined($extern_window_width));
                   3659:
                   3660:       push @attr, "height=$extern_window_height"
                   3661:         if (defined($extern_window_height));
                   3662:
                   3663:       # We need the "return false" here to prevent browsers
                   3664:       # from following the href after the onclick handler.
                   3665:       # This would effectively load the same document in
                   3666:       # the same window *twice*.
                   3667:       printf q` onclick="window.open('%s','cvs_checkout','%s');return false"`,
                   3668:         hrefquote("$fullurl$barequery"), join (',', @attr);
                   3669:     }
                   3670:   }
3.159     scop     3671:   print ">$textlink</a>";
3.132     scop     3672: }
                   3673:
                   3674: sub graph_link($$;$)
                   3675: {
                   3676:   my ($url, $revision, $text) = @_;
                   3677:   $text ||= $graphicon;
                   3678:   return sprintf('<a href="%s?graph=%s%s">%s</a>',
                   3679:                  hrefquote($url), hrefquote($revision), hrefquote($barequery),
                   3680:                  $text);
3.1       knu      3681: }
                   3682:
                   3683: # Returns a Query string with the
                   3684: # specified parameter toggled
3.140     scop     3685: sub toggleQuery($;$)
3.120     scop     3686: {
                   3687:   my ($toggle, $value) = @_;
3.133     scop     3688:
                   3689:   my %vars = %input;
3.120     scop     3690:
                   3691:   if (defined($value)) {
                   3692:     $vars{$toggle} = $value;
                   3693:   } else {
                   3694:     $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   3695:   }
                   3696:
                   3697:   # Build a new query of non-default paramenters
3.133     scop     3698:   my $newquery = "";
                   3699:   foreach my $var (@stickyvars) {
3.120     scop     3700:     my ($value)   = defined($vars{$var})         ? $vars{$var}         : "";
                   3701:     my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   3702:
                   3703:     if ($value ne $default) {
                   3704:       $newquery .= "&" if ($newquery ne "");
                   3705:       $newquery .= urlencode($var) . "=" . urlencode($value);
                   3706:     }
                   3707:   }
                   3708:
                   3709:   if ($newquery) {
                   3710:     return '?' . $newquery;
                   3711:   }
                   3712:   return "";
                   3713: }
                   3714:
                   3715: sub urlencode($)
                   3716: {
                   3717:   local ($_) = @_;
                   3718:
                   3719:   s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
                   3720:
                   3721:   $_;
                   3722: }
                   3723:
                   3724: sub htmlquote($)
                   3725: {
                   3726:   local ($_) = @_;
                   3727:
                   3728:   # Special Characters; RFC 1866
                   3729:   s/&/&amp;/g;
                   3730:   s/\"/&quot;/g;
                   3731:   s/</&lt;/g;
                   3732:   s/>/&gt;/g;
                   3733:
                   3734:   $_;
                   3735: }
                   3736:
                   3737: sub htmlunquote($)
                   3738: {
                   3739:   local ($_) = @_;
                   3740:
                   3741:   # Special Characters; RFC 1866
                   3742:   s/&quot;/\"/g;
                   3743:   s/&lt;/</g;
                   3744:   s/&gt;/>/g;
                   3745:   s/&amp;/&/g;
                   3746:
                   3747:   $_;
                   3748: }
                   3749:
                   3750: sub hrefquote($)
                   3751: {
                   3752:   local ($_) = @_;
                   3753:
                   3754:   y/ /+/;
                   3755:
                   3756:   htmlquote($_);
                   3757: }
                   3758:
3.163     scop     3759: sub http_header(;$$)
3.120     scop     3760: {
3.163     scop     3761:   my ($content_type, $moddate) = @_;
                   3762:   $content_type ||= 'text/html';
3.120     scop     3763:
                   3764:   $content_type .= "; charset=$charset"
3.163     scop     3765:     if ($charset && $content_type =~ m,^text/,);
3.120     scop     3766:
3.163     scop     3767:   if ($moddate) {
3.120     scop     3768:     if ($is_mod_perl) {
                   3769:       Apache->request->header_out(
                   3770:         "Last-Modified" => scalar gmtime($moddate) . " GMT");
                   3771:     } else {
                   3772:       print "Last-Modified: ", scalar gmtime($moddate), " GMT\r\n";
                   3773:     }
                   3774:   }
                   3775:
                   3776:   if ($is_mod_perl) {
                   3777:     Apache->request->content_type($content_type);
                   3778:   } else {
                   3779:     print "Content-Type: $content_type\r\n";
                   3780:   }
                   3781:
                   3782:   if ($allow_compress && $maycompress) {
                   3783:     if ($has_zlib
                   3784:         || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c")))
                   3785:     {
                   3786:
                   3787:       if ($is_mod_perl) {
                   3788:         Apache->request->content_encoding("x-gzip");
                   3789:         Apache->request->header_out(Vary => "Accept-Encoding");
                   3790:         Apache->request->send_http_header;
                   3791:       } else {
                   3792:         print "Content-Encoding: x-gzip\r\n";
                   3793:         print "Vary: Accept-Encoding\r\n";    #RFC 2068, 14.43
                   3794:         print "\r\n";                         # Close headers
                   3795:       }
                   3796:       $| = 1;
                   3797:       $| = 0;                                 # Flush header output
                   3798:
                   3799:       if ($has_zlib) {
                   3800:         tie *GZIP, __PACKAGE__, \*STDOUT;
                   3801:       }
                   3802:       select(GZIP);
                   3803:       $gzip_open = 1;
                   3804:
3.149     scop     3805:       #     print "<!-- gzipped -->" if ($content_type =~ m|^text/html\b|);
3.120     scop     3806:     } else {
                   3807:       if ($is_mod_perl) {
                   3808:         Apache->request->send_http_header;
                   3809:       } else {
                   3810:         print "\r\n";    # Close headers
                   3811:       }
                   3812:       print
                   3813:         "<span style=\"font-size: smaller\">Unable to find gzip binary in the <b>\$command_path</b> ($command_path) to compress output</span><br>";
                   3814:     }
                   3815:   } else {
                   3816:
                   3817:     if ($is_mod_perl) {
                   3818:       Apache->request->send_http_header;
                   3819:     } else {
                   3820:       print "\r\n";      # Close headers
                   3821:     }
                   3822:   }
                   3823: }
                   3824:
3.131     scop     3825:
3.163     scop     3826: sub html_header($;$)
3.120     scop     3827: {
3.163     scop     3828:   my ($title, $moddate) = @_;
                   3829:   $title = htmlquote($title);
3.162     scop     3830:   my $l = $logo || '';
3.163     scop     3831:   http_header('text/html', $moddate);
3.120     scop     3832:   print <<EOH;
3.100     knu      3833: $HTML_DOCTYPE
3.1       knu      3834: <html>
3.40      knu      3835: <head>
3.134     scop     3836: <title>$title</title>
3.144     scop     3837: $HTML_META$CSS</head>
3.129     scop     3838: <body>
3.162     scop     3839: $l <h1 align="center">$title</h1>
3.1       knu      3840: EOH
                   3841: }
                   3842:
3.120     scop     3843: sub html_footer()
                   3844: {
3.127     scop     3845:   print "<hr noshade>\n<address>$address</address>\n" if $address;
                   3846:   print "</body>\n</html>\n";
3.1       knu      3847: }
                   3848:
3.120     scop     3849: sub link_tags($)
                   3850: {
                   3851:   my ($tags) = @_;
                   3852:   my ($ret)  = "";
                   3853:   my ($fileurl, $filename);
                   3854:
                   3855:   ($filename = $where) =~ s/^.*\///;
                   3856:   $fileurl = './' . urlencode($filename);
                   3857:
                   3858:   foreach my $sym (split (", ", $tags)) {
                   3859:     $ret .= ",\n" if ($ret ne "");
3.136     scop     3860:     $ret .= &link(htmlquote($sym),
                   3861:                   $fileurl . toggleQuery('only_with_tag', $sym));
3.120     scop     3862:   }
                   3863:   return "$ret\n";
3.1       knu      3864: }
                   3865:
                   3866: #
3.81      knu      3867: # See if a module is listed in the config file's @HideModules list.
3.1       knu      3868: #
3.120     scop     3869: sub forbidden_module($)
                   3870: {
                   3871:   my ($module) = @_;
                   3872:   local $_;
                   3873:
                   3874:   for (@HideModules) {
                   3875:     return 1 if $module =~ $_;
                   3876:   }
                   3877:   return 0;
                   3878: }
                   3879:
                   3880: sub forbidden_file($)
                   3881: {
                   3882:   my ($path) = @_;
                   3883:   $path = substr($path, length($cvsroot) + 1);
                   3884:   local $_;
                   3885:   for (@ForbiddenFiles) {
                   3886:     return 1 if $path =~ $_;
                   3887:   }
                   3888:   return 0;
3.129     scop     3889: }
                   3890:
3.25      knu      3891:
                   3892: # Close the GZIP handle remove the tie.
                   3893:
3.120     scop     3894: sub gzipclose
                   3895: {
                   3896:   if ($gzip_open) {
                   3897:     select(STDOUT);
                   3898:     close(GZIP);
                   3899:     untie *GZIP;
                   3900:     $gzip_open = 0;
                   3901:   }
3.23      knu      3902: }
                   3903:
                   3904: # implement a gzipped file handle via the Compress:Zlib compression
                   3905: # library.
                   3906:
                   3907: sub MAGIC1() { 0x1f }
                   3908: sub MAGIC2() { 0x8b }
3.80      knu      3909: sub OSCODE() { 3 }
3.23      knu      3910:
3.120     scop     3911: sub TIEHANDLE
                   3912: {
                   3913:   my ($class, $out) = @_;
                   3914:   my ($d) = Compress::Zlib::deflateInit(
                   3915:     -Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
                   3916:     -WindowBits => -Compress::Zlib::MAX_WBITS()
                   3917:     )
                   3918:     or return undef;
                   3919:   my ($o) = { handle => $out,
                   3920:               dh     => $d,
                   3921:               crc    => 0,
                   3922:               len    => 0,
                   3923:             };
                   3924:   my ($header) = pack("c10",
                   3925:                       MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
                   3926:                       0, 0, 0, 0, 0, 0, OSCODE);
                   3927:   print {$o->{handle}} $header;
                   3928:   return bless($o, $class);
                   3929: }
                   3930:
                   3931: sub PRINT
                   3932: {
                   3933:   my ($o)   = shift;
3.164     scop     3934:   my ($buf) = join (defined($,) ? $, : "", @_);
3.120     scop     3935:   my ($len) = length($buf);
                   3936:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3937:   print {$o->{handle}} $compressed if defined($compressed);
                   3938:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3939:   $o->{len} += $len;
                   3940:   return $len;
                   3941: }
                   3942:
                   3943: sub PRINTF
                   3944: {
                   3945:   my ($o)   = shift;
                   3946:   my ($fmt) = shift;
                   3947:   my ($buf) = sprintf($fmt, @_);
                   3948:   my ($len) = length($buf);
                   3949:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3950:   print {$o->{handle}} $compressed if defined($compressed);
                   3951:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3952:   $o->{len} += $len;
                   3953:   return $len;
                   3954: }
                   3955:
                   3956: sub WRITE
                   3957: {
                   3958:   my ($o, $buf, $len, $off) = @_;
                   3959:   my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   3960:   print {$o->{handle}} $compressed if defined($compressed);
                   3961:   $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   3962:   $o->{len} += $len;
                   3963:   return $len;
                   3964: }
                   3965:
                   3966: sub CLOSE
                   3967: {
                   3968:   my ($o) = @_;
                   3969:   return if !defined($o->{dh});
                   3970:   my ($buf) = $o->{dh}->flush();
                   3971:   $buf .= pack("V V", $o->{crc}, $o->{len});
                   3972:   print {$o->{handle}} $buf;
                   3973:   undef $o->{dh};
                   3974: }
                   3975:
                   3976: sub DESTROY
                   3977: {
                   3978:   my ($o) = @_;
                   3979:   CLOSE($o);
1.1       jfieber  3980: }
3.149     scop     3981:
                   3982: # Local variables:
                   3983: # indent-tabs-mode: nil
                   3984: # cperl-indent-level: 2
                   3985: # End:

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