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Annotation of cvsweb/cvsweb.cgi, Revision 3.174

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);
3.172     scop       99: use File::Basename        qw(dirname);
3.171     scop      100: use File::Path            qw(rmtree);
3.165     scop      101: use File::Spec::Functions qw(catdir catfile devnull tmpdir);
                    102: use File::Temp            qw(tempdir);
3.174   ! scop      103: use IPC::Run              qw(start finish timeout);
3.172     scop      104: use Time::Local           qw(timegm);
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;
3.172     scop      144:
3.122     scop      145: }
                    146:
                    147: # -----------------------------------------------------------------------------
                    148:
3.12      knu       149: sub printDiffSelect($);
3.168     scop      150: sub printDiffSelectStickyVars();
3.37      knu       151: sub printDiffLinks($$);
                    152: sub printLogSortSelect($);
3.12      knu       153: sub findLastModifiedSubdirs(@);
3.36      knu       154: sub htmlify_sub(&$);
3.12      knu       155: sub htmlify($;$);
3.20      knu       156: sub spacedHtmlText($;$);
3.12      knu       157: sub link($$);
                    158: sub revcmp($$);
3.103     knu       159: sub fatal($$@);
3.12      knu       160: sub redirect($);
                    161: sub safeglob($);
3.58      knu       162: sub search_path($);
3.156     scop      163: sub getMimeType($;$);
3.24      knu       164: sub head($;$);
                    165: sub scan_directives(@);
3.86      knu       166: sub openOutputFilter();
3.133     scop      167: sub doAnnotate($);
3.12      knu       168: sub doCheckout($$);
3.167     scop      169: sub doEnscript($$$);
3.170     scop      170: sub doGraph();
                    171: sub doGraphView();
3.163     scop      172: sub cvswebMarkup($$$;$);
3.12      knu       173: sub viewable($);
                    174: sub doDiff($$$$$$);
                    175: sub getDirLogs($$@);
                    176: sub readLog($;$);
                    177: sub printLog($;$);
                    178: sub doLog($);
                    179: sub flush_diff_rows($$$$);
3.144     scop      180: sub human_readable_diff($$);
3.163     scop      181: sub navigateHeader($$$$$;$);
3.12      knu       182: sub plural_write($$);
                    183: sub readableTime($$);
                    184: sub clickablePath($$);
                    185: sub chooseCVSRoot();
                    186: sub chooseMirror();
                    187: sub fileSortCmp();
                    188: sub download_url($$;$);
                    189: sub download_link($$$;$);
3.170     scop      190: sub graph_link($;$);
3.140     scop      191: sub toggleQuery($;$);
3.12      knu       192: sub urlencode($);
3.35      knu       193: sub htmlquote($);
3.36      knu       194: sub htmlunquote($);
3.48      knu       195: sub hrefquote($);
3.163     scop      196: sub http_header(;$$);
                    197: sub html_header($;$);
3.12      knu       198: sub html_footer();
                    199: sub link_tags($);
3.81      knu       200: sub forbidden_file($);
3.12      knu       201: sub forbidden_module($);
3.174   ! scop      202: sub startproc($@);
3.12      knu       203:
3.1       knu       204: ##### Start of Configuration Area ########
3.122     scop      205:
3.142     scop      206: # Get rid of unsafe environment vars.  Don't do this in BEGIN...
3.173     scop      207: # This will fail with mod_perl 1.99_X for X < 08.
                    208: # http://marc.theaimsgroup.com/?l=apache-modperl-dev&m=103473352222344
3.142     scop      209: delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
3.59      knu       210:
3.172     scop      211: my ($mydir) = (dirname($0) =~ /(.*)/);    # untaint
3.58      knu       212:
3.12      knu       213: # == EDIT this ==
3.28      knu       214: # Locations to search for user configuration, in order:
3.165     scop      215: for (catfile($mydir, 'cvsweb.conf'), '/usr/local/etc/cvsweb/cvsweb.conf') {
                    216:   if (-r $_) {
3.120     scop      217:     $config = $_;
                    218:     last;
                    219:   }
3.11      knu       220: }
3.122     scop      221: undef $mydir;
3.1       knu       222:
                    223: # == Configuration defaults ==
                    224: # Defaults for configuration variables that shouldn't need
                    225: # to be configured..
                    226: $allow_version_select = 1;
3.120     scop      227: $allow_log_extra      = 1;
3.1       knu       228:
                    229: ##### End of Configuration Area   ########
                    230:
                    231: ######## Configuration variables #########
                    232: # These are defined to allow checking with perl -cw
3.120     scop      233:
3.80      knu       234: @CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
3.129     scop      235:   %MTYPES = %tags = %alltags = %fileinfo = ();
3.120     scop      236:
3.129     scop      237: $cvstreedefault = $logo = $defaulttitle =
3.120     scop      238:   $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
3.131     scop      239:   $tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
3.129     scop      240:   $hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
3.120     scop      241:   $allow_markup = $use_java_script = $open_extern_window =
                    242:   $extern_window_width = $extern_window_height = $edit_option_form =
3.144     scop      243:   $show_subdir_lastmod = $show_log_in_markup =
3.163     scop      244:   $tabstop = $use_moddate = $gzip_open = undef;
3.32      knu       245:
3.37      knu       246: @DIFFTYPES = qw(h H u c s);
                    247: @DIFFTYPES{@DIFFTYPES} = (
3.120     scop      248:   {
                    249:     'descr'   => 'colored',
                    250:     'opts'    => ['-u'],
                    251:     'colored' => 1,
                    252:   },
                    253:   {
                    254:     'descr'   => 'long colored',
                    255:     'opts'    => ['--unified=15'],
                    256:     'colored' => 1,
                    257:   },
                    258:   {
                    259:     'descr'   => 'unified',
                    260:     'opts'    => ['-u'],
                    261:     'colored' => 0,
                    262:   },
                    263:   {
                    264:     'descr'   => 'context',
                    265:     'opts'    => ['-c'],
                    266:     'colored' => 0,
                    267:   },
                    268:   {
                    269:     'descr'   => 'side by side',
                    270:     'opts'    => ['--side-by-side', '--width=164'],
                    271:     'colored' => 0,
                    272:   },
3.80      knu       273: );
3.37      knu       274:
                    275: @LOGSORTKEYS = qw(cvs date rev);
                    276: @LOGSORTKEYS{@LOGSORTKEYS} = (
3.120     scop      277:   {'descr' => 'Not sorted',},
                    278:   {'descr' => 'Commit date',},
                    279:   {'descr' => 'Revision',},
3.80      knu       280: );
3.37      knu       281:
3.1       knu       282: ##### End of configuration variables #####
                    283:
3.120     scop      284: $checkoutMagic =  "~checkout~";
                    285: $pathinfo      =  defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    286: $where         =  $pathinfo;
                    287: $doCheckout    =  ($where =~ m|^/$checkoutMagic/|);
                    288: $where         =~ s|^/$checkoutMagic/|/|;
                    289: $where         =~ s|^/||;
                    290: $scriptname    =  defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    291: $scriptname    =~ s|^/*|/|;
3.63      knu       292:
3.64      knu       293: # Let's workaround thttpd's stupidity..
3.63      knu       294: if ($scriptname =~ m|/$|) {
3.120     scop      295:   $pathinfo .= '/';
                    296:   my $re = quotemeta $pathinfo;
                    297:   $scriptname =~ s/$re$//;
3.63      knu       298: }
                    299:
3.120     scop      300: $scriptwhere  = $scriptname;
3.63      knu       301: $scriptwhere .= '/' . urlencode($where);
                    302: $where = '/' if ($where eq '');
3.3       knu       303:
3.1       knu       304: # in lynx, it it very annoying to have two links
                    305: # per file, so disable the link at the icon
                    306: # in this case:
3.120     scop      307: $Browser     = $ENV{HTTP_USER_AGENT} || '';
3.80      knu       308: $is_links    = ($Browser =~ m`^Links `);
                    309: $is_lynx     = ($Browser =~ m`^Lynx/`i);
                    310: $is_w3m      = ($Browser =~ m`^w3m/`i);
                    311: $is_msie     = ($Browser =~ m`MSIE`);
3.5       knu       312: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       313:
3.34      knu       314: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       315:
                    316: $nofilelinks = $is_textbased;
3.1       knu       317:
                    318: # newer browsers accept gzip content encoding
                    319: # and state this in a header
                    320: # (netscape did always but didn't state it)
                    321: # It has been reported that these
                    322: #  braindamaged MS-Internet Exploders claim that they
                    323: # accept gzip .. but don't in fact and
                    324: # display garbage then :-/
3.23      knu       325: # Turn off gzip if running under mod_perl and no zlib is available,
                    326: # piping does not work as expected inside the server.
3.120     scop      327: $maycompress = (
                    328:   ((defined($ENV{HTTP_ACCEPT_ENCODING})
                    329:     && $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
                    330:    || $is_mozilla3)
                    331:   && !$is_msie
                    332:   && !($is_mod_perl && !$has_zlib)
                    333: );
3.1       knu       334:
                    335: # put here the variables we need in order
                    336: # to hold our state - they will be added (with
3.12      knu       337: # their current value) to any link/query string
3.1       knu       338: # you construct
3.149     scop      339: @stickyvars = qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag
                    340:                  ln);
3.97      knu       341: @unsafevars = qw(logsort only_with_tag r1 r2 rev sortby tr1 tr2);
1.1       jfieber   342:
3.1       knu       343: if (-f $config) {
3.120     scop      344:   do "$config"
                    345:     or fatal("500 Internal Error",
                    346:              'Error in loading configuration file: %s<br><br>%s<br>',
                    347:              $config, $@);
3.27      knu       348: } else {
3.120     scop      349:   fatal("500 Internal Error",
                    350:         'Configuration not found.  Set the variable <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
3.1       knu       351: }
                    352:
3.144     scop      353: $CSS = $cssurl ?
                    354:   sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n",
                    355:           htmlquote($cssurl)) : '';
                    356:
3.1       knu       357: undef %input;
3.3       knu       358: $query = $ENV{QUERY_STRING};
                    359:
3.12      knu       360: if (defined($query) && $query ne '') {
3.120     scop      361:   foreach (split (/&/, $query)) {
                    362:     y/+/ /;
                    363:     s/%(..)/sprintf("%c", hex($1))/ge;    # unquote %-quoted
                    364:     if (/(\S+)=(.*)/) {
                    365:       $input{$1} = $2 if ($2 ne "");
                    366:     } else {
                    367:       $input{$_}++;
                    368:     }
                    369:   }
1.7       fenner    370: }
1.10      wosch     371:
3.12      knu       372: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       373: $input{only_with_tag} = $input{only_on_branch}
3.120     scop      374:   if (defined($input{only_on_branch}));
3.97      knu       375:
3.154     scop      376: # Prevent cross-site scripting, untaint.
3.97      knu       377: foreach (@unsafevars) {
3.154     scop      378:   if (defined($input{$_})) {
                    379:     # Colons are needed in diffs between tags.
3.155     scop      380:     if ($input{$_} =~ /^([\w\-.:]*)$/) {
3.154     scop      381:       $input{$_} = $1;
                    382:     } else {
                    383:       fatal("500 Internal Error", 'Malformed query (%s=%s)', $_, $input{$_});
                    384:     }
3.120     scop      385:   }
3.97      knu       386: }
                    387:
                    388: if (defined($input{"content-type"})) {
3.146     scop      389:   fatal('500 Internal Error', 'Unsupported content-type')
                    390:     if ($input{"content-type"} !~ /^[-0-9A-Za-z]+\/[-0-9A-Za-z\.]+$/);
3.97      knu       391: }
1.10      wosch     392:
3.158     scop      393: #
                    394: # CVS roots
                    395: #
                    396: my $rootfound = 0;
                    397: for (my $i = 0; $i < scalar(@CVSrepositories); $i += 2) {
                    398:   my $key = $CVSrepositories[$i];
                    399:   my ($descr, $cvsroot) = @{$CVSrepositories[$i+1]};
                    400:   unless (-d $cvsroot) {
                    401:     warn("Root '$cvsroot' defined in \@CVSrepositories is not a directory, " .
                    402:          'entry ignored');
                    403:     next;
                    404:   }
                    405:   $rootfound ||= 1;
                    406:   $cvstreedefault = $key unless defined($cvstreedefault);
                    407:   $CVSROOTdescr{$key} = $descr;
                    408:   $CVSROOT{$key} = $cvsroot;
                    409:   push(@CVSROOT, $key);
                    410: }
                    411: unless ($rootfound) {
                    412:   fatal('500 Internal Error',
                    413:         'No valid CVS roots found!  See <code>@CVSrepositories</code> in ' .
                    414:         'your configuration file (<code>%s</code>).',
                    415:         $config);
                    416: }
                    417: undef $rootfound;
                    418:
                    419: #
                    420: # Default CVS root
                    421: #
                    422: if (!defined($CVSROOT{$cvstreedefault})) {
                    423:   fatal("500 Internal Error",
                    424:         '<code>$cvstreedefault</code> points to a repository (%s) not ' .
                    425:         'defined in <code>@CVSrepositories</code> in your configuration ' .
                    426:         'file (<code>%s</code>).',
                    427:         $cvstreedefault,
                    428:         $config);
                    429: }
                    430:
3.1       knu       431: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     432:
3.120     scop      433: while (my ($key, $defval) = each %DEFAULTVALUE) {
3.80      knu       434:
3.120     scop      435:   # Replace not given parameters with defaults.
                    436:   next unless (defined($defval)
3.121     scop      437:                && (!defined($input{$key}) || $input{$key} eq ''));
3.120     scop      438:
                    439:   # Empty checkboxes in forms return nothing, so we define a helper variable
                    440:   # in these forms (copt) which indicates that we just set parameters with a
                    441:   # checkbox.
                    442:   if (defined($input{'copt'})) {
                    443:
                    444:     # 'copt' is defined -> the result of empty input checkbox
                    445:     # -> set to zero (disable) if default is a boolean (0|1).
                    446:     $input{$key} = 0 if ($defval eq '0' || $defval eq '1');
                    447:
                    448:   } else {
                    449:
                    450:     # 'copt' isn't defined --> empty input is not the result
                    451:     # of empty input checkbox --> set default.
                    452:     $input{$key} = $defval;
                    453:   }
1.10      wosch     454: }
3.12      knu       455:
3.1       knu       456: $barequery = "";
3.31      knu       457: my @barequery;
3.1       knu       458: foreach (@stickyvars) {
3.80      knu       459:
3.120     scop      460:   # construct a query string with the sticky non default parameters set
                    461:   if (defined($input{$_})
                    462:       && $input{$_} ne ''
                    463:       && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
                    464:   {
                    465:     push @barequery, join ('=', urlencode($_), urlencode($input{$_}));
                    466:   }
3.1       knu       467: }
3.80      knu       468:
3.168     scop      469: if ($allow_enscript) {
                    470:   push(@DIFFTYPES, qw(uc cc sc));
                    471:   @DIFFTYPES{qw(uc cc sc)} = (
                    472:     {
                    473:      'descr'   => 'unified, colored',
                    474:      'opts'    => ['-u'],
                    475:      'colored' => 0,
                    476:     },
                    477:     {
                    478:      'descr'   => 'context, colored',
                    479:      'opts'    => ['-c'],
                    480:      'colored' => 0,
                    481:     },
                    482:     {
                    483:      'descr'   => 'side by side, colored',
                    484:      'opts'    => ['--side-by-side', '--width=164'],
                    485:      'colored' => 0,
                    486:     },
                    487:   );
                    488: } else {
                    489:   # No Enscript -> respect difftype, but don't offer colorization.
                    490:   if ($input{f} && $input{f} =~ /^([ucs])c$/) {
                    491:     $input{f} = $1;
                    492:   }
                    493: }
                    494:
3.1       knu       495: # is there any query ?
3.31      knu       496: if (@barequery) {
3.120     scop      497:   $barequery = join ('&', @barequery);
                    498:   $query     = "?$barequery";
                    499:   $barequery = "&$barequery";
3.80      knu       500: } else {
3.120     scop      501:   $query = "";
3.1       knu       502: }
3.31      knu       503: undef @barequery;
3.1       knu       504:
3.120     scop      505: if (defined($input{'path'})) {
                    506:   redirect("$scriptname/$input{path}$query");
3.57      knu       507: }
                    508:
3.1       knu       509: # get actual parameters
3.144     scop      510: {
                    511:   my $sortby = $input{sortby} || 'file';
                    512:   $bydate    = 0;
                    513:   $byrev     = 0;
                    514:   $byauthor  = 0;
                    515:   $bylog     = 0;
                    516:   $byfile    = 0;
                    517:   if ($sortby eq 'date') {
                    518:     $bydate = 1;
                    519:   } elsif ($sortby eq 'rev') {
                    520:     $byrev = 1;
                    521:   } elsif ($sortby eq 'author') {
                    522:     $byauthor = 1;
                    523:   } elsif ($sortby eq 'log') {
                    524:     $bylog = 1;
                    525:   } else {
                    526:     $byfile = 1;
                    527:   }
3.1       knu       528: }
                    529:
3.37      knu       530: $defaultDiffType = $input{'f'};
3.1       knu       531:
3.3       knu       532: $logsort = $input{'logsort'};
3.1       knu       533:
                    534: # alternate CVS-Tree, configured in cvsweb.conf
                    535: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
3.120     scop      536:   $cvstree = $input{'cvsroot'};
3.1       knu       537: } else {
3.120     scop      538:   $cvstree = $cvstreedefault;
1.10      wosch     539: }
                    540:
3.1       knu       541: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     542:
3.1       knu       543: # create icons out of description
3.120     scop      544: foreach my $k (keys %ICONS) {
                    545:   my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
                    546:   no strict 'refs';
                    547:   if ($ipath) {
                    548:     ${"${k}icon"} =
                    549:       sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d">',
3.132     scop      550:               hrefquote($ipath), htmlquote($itxt), $iwidth, $iheight);
3.120     scop      551:   } else {
                    552:     ${"${k}icon"} = $itxt;
                    553:   }
1.24      wosch     554: }
                    555:
3.27      knu       556: my $config_cvstree = "$config-$cvstree";
                    557:
3.1       knu       558: # Do some special configuration for cvstrees
3.27      knu       559: if (-f $config_cvstree) {
3.120     scop      560:   do "$config_cvstree"
                    561:     or fatal("500 Internal Error",
                    562:              'Error in loading configuration file: %s<br><br>%s<br>',
                    563:              $config_cvstree, $@);
3.27      knu       564: }
3.31      knu       565: undef $config_cvstree;
3.1       knu       566:
3.120     scop      567: $re_prcategories  = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
                    568: $re_prkeyword     = quotemeta($prkeyword) if defined($prkeyword);
                    569: $prcgi           .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     570:
3.80      knu       571: $fullname         = "$cvsroot/$where";
3.1       knu       572:
3.63      knu       573: my $rewrite = 0;
                    574:
                    575: if ($pathinfo =~ m|//|) {
3.120     scop      576:   $pathinfo =~ y|/|/|s;
                    577:   $rewrite = 1;
3.63      knu       578: }
                    579:
3.120     scop      580: if (-d $fullname) {
                    581:   if ($pathinfo !~ m|/$|) {
                    582:     $pathinfo .= '/';
                    583:     $rewrite   = 1;
                    584:   }
                    585: } else {
                    586:   if ($pathinfo =~ m|/$|) {
                    587:     chop $pathinfo;
                    588:     $rewrite = 1;
                    589:   }
3.63      knu       590: }
                    591:
                    592: if ($rewrite) {
3.120     scop      593:   redirect($scriptname . urlencode($pathinfo) . $query);
3.1       knu       594: }
                    595:
3.63      knu       596: undef $rewrite;
                    597:
3.1       knu       598: if (!-d $cvsroot) {
3.120     scop      599:   fatal("500 Internal Error",
                    600:         '$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       601: }
                    602:
                    603: #
                    604: # See if the module is in our forbidden list.
                    605: #
                    606: $where =~ m:([^/]*):;
                    607: $module = $1;
                    608: if ($module && &forbidden_module($module)) {
3.120     scop      609:   fatal("403 Forbidden", 'Access to %s forbidden.', $where);
3.1       knu       610: }
3.46      knu       611:
                    612: #
                    613: # Handle tarball downloads before any headers are output.
                    614: #
                    615: if ($input{tarball}) {
3.120     scop      616:   fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
                    617:     unless $allow_tar;
                    618:   my ($module)  =  ($where =~ m,^/?(.*),);    # untaint
                    619:   $module       =~ s,/([^/]*)$,,;
                    620:   my ($ext)     =  ($1 =~ /(\.tar\.gz|\.zip)$/);
                    621:   my ($basedir) =  ($module =~ m,([^/]+)$,);
                    622:
                    623:   if ($basedir eq '' || $module eq '') {
                    624:     fatal('500 Internal Error',
                    625:           'You cannot download the top level directory.');
                    626:   }
                    627:
3.138     scop      628:   my $tmpexportdir;
                    629:   eval {
                    630:     local $SIG{__DIE__};
3.171     scop      631:     # Don't use the CLEANUP argument to tempdir() here, since we might be under
                    632:     # mod_perl (the process runs for a long time), unlink explicitly later.
                    633:     $tmpexportdir = tempdir('.cvsweb.XXXXXXXX', TMPDIR => 1);
3.138     scop      634:   };
                    635:   if ($@) {
                    636:     fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
                    637:   }
3.120     scop      638:
                    639:   my @fatal;
                    640:
                    641:   my $tag =
                    642:     (exists $input{only_with_tag} && length $input{only_with_tag})
                    643:     ? $input{only_with_tag}
                    644:     : 'HEAD';
                    645:
                    646:   $tag = 'HEAD' if $tag eq 'MAIN';
                    647:
                    648:   if (system($CMD{cvs},
                    649:              @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag, '-d',
3.165     scop      650:              catdir($tmpexportdir, $basedir), $module))
3.120     scop      651:   {
3.141     scop      652:     @fatal = ('500 Internal Error', 'cvs export failure: %s: %s', $!, $module);
3.120     scop      653:   } else {
                    654:     $| = 1;    # Essential to get the buffering right.
                    655:
                    656:     if ($ext eq '.tar.gz') {
                    657:       print "Content-Type: application/x-gzip\r\n\r\n";
                    658:
                    659:       system("$CMD{tar} @tar_options -cf - -C $tmpexportdir $basedir | $CMD{gzip} @gzip_options -c")
                    660:         and @fatal =
                    661:           ('500 Internal Error', 'tar zc failure: %s: %s', $!, $basedir);
                    662:     } elsif ($ext eq '.zip' && $CMD{zip}) {
                    663:       print "Content-Type: application/zip\r\n\r\n";
                    664:
                    665:       system("cd $tmpexportdir && $CMD{zip} @zip_options -r - $basedir")
                    666:         and @fatal =
                    667:           ('500 Internal Error', 'zip failure: %s: %s', $!, $basedir);
                    668:     } else {
                    669:       @fatal = ('500 Internal Error', 'unsupported file type');
                    670:     }
                    671:   }
3.46      knu       672:
3.171     scop      673:   # Clean up.
                    674:   rmtree($tmpexportdir);
3.46      knu       675:
3.120     scop      676:   &fatal(@fatal) if @fatal;
3.46      knu       677:
3.120     scop      678:   exit;
3.46      knu       679: }
                    680:
3.1       knu       681: ##############################
                    682: # View a directory
                    683: ###############################
3.46      knu       684: if (-d $fullname) {
3.120     scop      685:   my $dh = do { local (*DH); };
                    686:   opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
                    687:   my @dir = readdir($dh);
                    688:   closedir($dh);
                    689:   my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    690:     if ($show_subdir_lastmod);
3.150     scop      691:   my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
3.120     scop      692:
                    693:   if ($where eq '/') {
                    694:     html_header($defaulttitle);
                    695:     $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
                    696:     print $long_intro;
                    697:   } else {
                    698:     html_header($where);
                    699:     print $short_instruction;
                    700:   }
                    701:
3.165     scop      702:   if ($use_descriptions &&
                    703:       open(DESC, '<', catfile($cvsroot, 'CVSROOT', 'descriptions'))) {
3.120     scop      704:     while (<DESC>) {
                    705:       chomp;
                    706:       my ($dir, $description) = /(\S+)\s+(.*)/;
                    707:       $descriptions{$dir} = $description;
                    708:     }
                    709:     close(DESC);
                    710:   }
                    711:
                    712:   print "<p><a name=\"dirlist\"></a></p>\n";
                    713:
                    714:   # give direct access to dirs
                    715:   if ($where eq '/') {
                    716:     chooseMirror();
                    717:     chooseCVSRoot();
                    718:   } else {
                    719:     print "<p>Current directory: <b>", &clickablePath($where, 0), "</b></p>\n";
                    720:
3.153     scop      721:     print "<p>Current tag: <b>", htmlquote($input{only_with_tag}), "</b></p>\n"
3.120     scop      722:       if $input{only_with_tag};
                    723:
                    724:   }
                    725:
                    726:   print "<hr noshade>\n";
                    727:
3.131     scop      728:   my $infocols = 0;
                    729:
                    730:   print "<table class=\"dir\" width=\"100%\" cellspacing=\"1\" cellpadding=\"$tablepadding\">\n";
                    731:   $infocols++;
3.132     scop      732:   printf "<tr>\n<th class=\"dir-header%s\" colspan=\"2\">",
                    733:     $byfile ? '-sorted' : '';
3.131     scop      734:
                    735:   if ($byfile) {
                    736:     print 'File';
                    737:   } else {
                    738:     print &link('File',
                    739:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
                    740:   }
                    741:   print "</th>\n";
3.120     scop      742:
3.131     scop      743:   # Do not display the other column headers if we do not have any files
                    744:   # with revision information.
                    745:   if (scalar(%fileinfo)) {
3.120     scop      746:     $infocols++;
3.131     scop      747:     printf '<th class="dir-header%s">', $byrev ? '-sorted' : '';
3.120     scop      748:
3.131     scop      749:     if ($byrev) {
                    750:       print 'Rev.';
3.120     scop      751:     } else {
3.131     scop      752:       print &link('Rev.',
                    753:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
3.120     scop      754:     }
                    755:     print "</th>\n";
3.131     scop      756:     $infocols++;
                    757:     printf '<th class="dir-header%s">', $bydate ? '-sorted' : '';
3.120     scop      758:
3.131     scop      759:     if ($bydate) {
                    760:       print 'Age';
                    761:     } else {
                    762:       print &link('Age',
                    763:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
                    764:     }
                    765:     print "</th>\n";
3.120     scop      766:
3.131     scop      767:     if ($show_author) {
3.120     scop      768:       $infocols++;
3.131     scop      769:       printf '<th class="dir-header%s">', $byauthor ? '-sorted' : '';
3.120     scop      770:
3.131     scop      771:       if ($byauthor) {
                    772:         print 'Author';
3.120     scop      773:       } else {
3.131     scop      774:         print
                    775:           &link('Author',
                    776:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
3.120     scop      777:       }
                    778:       print "</th>\n";
3.131     scop      779:     }
                    780:     $infocols++;
                    781:     printf '<th class="dir-header%s">', $bylog ? '-sorted' : '';
3.120     scop      782:
3.131     scop      783:     if ($bylog) {
                    784:       print 'Last log entry';
                    785:     } else {
                    786:       print &link('Last log entry',
                    787:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
3.120     scop      788:     }
3.131     scop      789:     print "</th>\n";
                    790:   } elsif ($use_descriptions) {
                    791:     print "<th class=\"dir-header\">Description</th>\n";
                    792:     $infocols++;
3.120     scop      793:   }
3.131     scop      794:   print "</tr>\n";
                    795:
3.120     scop      796:   my $dirrow = 0;
                    797:
                    798:   my $i;
                    799:   lookingforattic:
                    800:   for ($i = 0; $i <= $#dir; $i++) {
                    801:     if ($dir[$i] eq "Attic") {
                    802:       last lookingforattic;
                    803:     }
                    804:   }
                    805:
                    806:   if (!$input{'hideattic'}
                    807:       && ($i <= $#dir)
                    808:       && opendir($dh, $fullname . '/Attic'))
                    809:   {
                    810:     splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
                    811:     closedir($dh);
                    812:   }
                    813:
                    814:   my $hideAtticToggleLink =
                    815:     $input{'hideattic'}
                    816:     ? ''
                    817:     : &link('[Hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    818:
                    819:   # Sort without the Attic/ pathname.
                    820:   # place directories first
                    821:
                    822:   my $attic;
                    823:   my $url;
                    824:   my $fileurl;
                    825:   my $filesexists;
                    826:   my $filesfound;
                    827:
                    828:   foreach my $file (sort { &fileSortCmp } @dir) {
                    829:
                    830:     next if ($file eq '.');
                    831:
                    832:     # ignore CVS lock and stale NFS files
                    833:     next if ($file =~ /^\#cvs\.|^,|^\.nfs/); # \# for XEmacs cperl-mode...
                    834:
                    835:     # Check whether to show the CVSROOT path
                    836:     next if ($input{'hidecvsroot'} && $file eq 'CVSROOT');
                    837:
                    838:     # Check whether the module is in the restricted list
                    839:     next if ($file && &forbidden_module($file));
                    840:
3.150     scop      841:     # Is it a directory?
                    842:     my $isdir = -d "$fullname/$file";
                    843:
                    844:     # Ignore non-readable files and directories?
                    845:     next if ($input{'hidenonreadable'} && (! -r _ || ($isdir && ! -x _)));
3.120     scop      846:
                    847:     if ($file =~ s|^Attic/||) {
3.131     scop      848:       $attic = ' (in&nbsp;the&nbsp;Attic)&nbsp;' . $hideAtticToggleLink;
3.120     scop      849:     } else {
                    850:       $attic = '';
                    851:     }
                    852:
3.150     scop      853:     if ($file eq '..' || $isdir) {
3.120     scop      854:       next if ($file eq '..' && $where eq '/');
3.152     scop      855:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    856:         @{$fileinfo{$file}} if (defined($fileinfo{$file}));
3.132     scop      857:       printf "<tr class=\"dir-row-%s\">\n<td colspan=\"2\">",
                    858:         ($dirrow % 2) ? 'even' : 'odd';
3.120     scop      859:
                    860:       if ($file eq '..') {
                    861:         $url = "../$query";
                    862:         if ($nofilelinks) {
                    863:           print $backicon;
                    864:         } else {
                    865:           print &link($backicon, $url);
                    866:         }
                    867:         print '&nbsp;', &link("Parent Directory", $url);
                    868:       } else {
                    869:         $url = './' . urlencode($file) . "/$query";
3.136     scop      870:         print '<a name="', hrefquote($file), '"></a>';
3.120     scop      871:
                    872:         if ($nofilelinks) {
                    873:           print $diricon;
                    874:         } else {
                    875:           print &link($diricon, $url);
                    876:         }
3.136     scop      877:         print '&nbsp;', &link(htmlquote("$file/"), $url), $attic;
3.120     scop      878:
                    879:         if ($file eq "Attic") {
                    880:           print "&nbsp; ";
                    881:           print &link('[Don\'t hide]',
                    882:                       sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    883:         }
                    884:       }
                    885:
                    886:       # Show last change in dir
                    887:       if ($filename) {
3.131     scop      888:         print "</td>\n<td>&nbsp;</td>\n<td>&nbsp;";
                    889:
3.120     scop      890:         if ($date) {
                    891:           print " <i>", readableTime(time() - $date, 0), "</i>";
                    892:         }
                    893:
                    894:         if ($show_author) {
3.136     scop      895:           print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      896:         }
3.131     scop      897:         print "</td>\n<td>&nbsp;";
3.120     scop      898:         $filename =~ s%^[^/]+/%%;
3.136     scop      899:         print htmlquote($filename), '/', $rev, '<br>';
3.120     scop      900:
                    901:         if ($log) {
                    902:           print '&nbsp;<span style="font-size: smaller">',
                    903:             &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    904:           print '...' if (length($log) > 80);
                    905:           print '</span>';
                    906:         }
                    907:       } else {
                    908:         my $dwhere = ($where ne '/' ? $where : '') . $file;
                    909:
                    910:         if ($use_descriptions && defined $descriptions{$dwhere}) {
3.131     scop      911:           print '<td colspan="', ($infocols - 1), '">&nbsp;';
3.120     scop      912:           print $descriptions{$dwhere};
                    913:
3.131     scop      914:         } elsif ($infocols > 1) {
3.120     scop      915:
                    916:           # close the row with the appropriate number of
                    917:           # columns, so that the vertical seperators are visible
                    918:           my ($cols) = $infocols;
                    919:           while ($cols > 1) {
                    920:             print "</td>\n<td>&nbsp;";
                    921:             $cols--;
                    922:           }
                    923:         }
                    924:       }
                    925:
3.131     scop      926:       print "</td>\n</tr>\n";
3.120     scop      927:       $dirrow++;
3.131     scop      928:
3.120     scop      929:     } elsif ($file =~ s/,v$//) {
                    930:
                    931:       # Skip forbidden files now so we'll give no hint
                    932:       # about their existence.  This should probably have
                    933:       # been done earlier, but it's straightforward here.
                    934:       next if forbidden_file("$fullname/$file");
                    935:
                    936:       $fileurl   = ($attic ? 'Attic/' : '') . urlencode($file);
                    937:       $url       = './' . $fileurl . $query;
                    938:       $filesexists++;
                    939:       next if (!defined($fileinfo{$file}));
3.152     scop      940:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    941:         @{$fileinfo{$file}};
3.156     scop      942:       my $isbinary = $keywordsubst eq 'b' ? 1 : 0;
3.120     scop      943:       $filesfound++;
3.156     scop      944:
3.132     scop      945:       printf "<tr class=\"dir-row-%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
                    946:       printf '<td%s>', $allow_cvsgraph ? '' : ' colspan="2"';
3.120     scop      947:
3.156     scop      948:       my $icon = $isbinary ? $binfileicon : $fileicon;
3.120     scop      949:       if ($nofilelinks) {
3.152     scop      950:         print $icon;
3.120     scop      951:       } else {
3.152     scop      952:         print &link($icon, $url);
3.120     scop      953:       }
                    954:       print '&nbsp;', &link(htmlquote($file), $url), $attic;
3.132     scop      955:       if ($allow_cvsgraph) {
3.170     scop      956:         print '</td><td>', &graph_link($fileurl);
3.132     scop      957:       }
                    958:       print "</td>\n<td width=\"30\">&nbsp;";
3.120     scop      959:       download_link($fileurl, $rev, $rev,
3.156     scop      960:                     viewable(getMimeType($file, $isbinary)) ?
                    961:                     'text/x-cvsweb-markup' : undef);
3.131     scop      962:       print "</td>\n<td>&nbsp;";
3.120     scop      963:
                    964:       if ($date) {
                    965:         print " <i>", readableTime(time() - $date, 0), "</i>";
                    966:       }
                    967:       if ($show_author) {
3.136     scop      968:         print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      969:       }
3.131     scop      970:       print "</td>\n<td>&nbsp;";
3.120     scop      971:
                    972:       if ($log) {
                    973:         print ' <span style="font-size: smaller">',
                    974:           &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    975:         print '...' if (length $log > 80);
                    976:         print '</span>';
                    977:       }
3.131     scop      978:       print "</td>\n</tr>";
3.120     scop      979:       $dirrow++;
                    980:     }
                    981:     print "\n";
                    982:   }
                    983:
3.131     scop      984:   print "</table>\n";
3.120     scop      985:
3.150     scop      986:   if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
                    987:     printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
                    988: <p>
                    989:  <b>NOTE:</b> The following %d unreadable files were ignored:<br>
                    990:  <em>%s</em>
                    991: </p>
                    992: EOF
                    993:   }
                    994:
3.120     scop      995:   if ($filesexists && !$filesfound) {
3.150     scop      996:     my $currtag = defined($input{only_with_tag}) ?
                    997:       sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
                    998:     printf(<<EOF, $filesexists, $currtag);
                    999: <p>
                   1000:  <b>NOTE:</b> There are %d files, but none matches the current tag%s.
                   1001: </p>
                   1002: EOF
3.120     scop     1003:   }
                   1004:
                   1005:   if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                   1006:     %tags = %alltags;
                   1007:   }
                   1008:
                   1009:   if (scalar %tags
                   1010:       || $input{only_with_tag}
                   1011:       || $edit_option_form
                   1012:       || defined($input{"options"}))
                   1013:   {
                   1014:     print "<hr size=\"1\" noshade>\n";
                   1015:   }
                   1016:
                   1017:   if (scalar %tags || $input{only_with_tag}) {
                   1018:     print "<form method=\"get\" action=\"./\">\n";
                   1019:     foreach my $var (@stickyvars) {
3.154     scop     1020:       printf("<input type=\"hidden\" name=\"$var\" value=\"%s\">\n",
                   1021:              htmlquote($input{$var}))
3.120     scop     1022:         if (defined($input{$var})
                   1023:             && (!defined($DEFAULTVALUE{$var})
                   1024:                 || $input{$var} ne $DEFAULTVALUE{$var})
                   1025:             && $input{$var} ne ""
                   1026:             && $var ne 'only_with_tag');
                   1027:     }
                   1028:     print "<p><label for=\"only_with_tag\" accesskey=\"T\">";
                   1029:     print "Show only files with tag:</label>\n";
                   1030:     print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
                   1031:     print " onchange=\"this.form.submit()\"" if $use_java_script;
                   1032:     print ">";
                   1033:     print "<option value=\"\">All tags / default branch</option>\n";
                   1034:
                   1035:     foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.136     scop     1036:       my $selected =
                   1037:         defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
                   1038:       printf("<option%s>%s</option>\n",
                   1039:              $selected ? ' selected' : '',
                   1040:              htmlquote($tag));
3.120     scop     1041:     }
                   1042:     print "</select>\n";
                   1043:     print " <label for=\"path\" accesskey=\"P\">";
                   1044:     print "Module path or alias:</label>\n";
                   1045:     printf "<input type=\"text\" id=\"path\" name=\"path\" value=\"%s\" size=\"15\">\n", htmlquote($where);
                   1046:     print "<input type=\"submit\" value=\"Go\" accesskey=\"G\"></p>\n";
                   1047:     print "</form>\n";
                   1048:   }
                   1049:
                   1050:   if ($allow_tar) {
                   1051:     my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
                   1052:
                   1053:     if (defined($basefile) && $basefile ne '') {
                   1054:       print "<hr noshade>\n",
                   1055:         "<div align=\"center\">Download this directory in ";
                   1056:
                   1057:       # Mangle the filename so browsers show a reasonable
                   1058:       # filename to download.
                   1059:       print
                   1060:         &link("tarball",
                   1061:               "./$basefile.tar.gz$query" . ($query ? "&" : "?") . "tarball=1");
                   1062:       if ($CMD{zip}) {
                   1063:         print " or ",
                   1064:           &link("zip archive",
                   1065:                 "./$basefile.zip$query" . ($query ? "&" : "?") . "tarball=1");
                   1066:       }
                   1067:       print "</div>\n";
                   1068:     }
                   1069:   }
                   1070:
                   1071:   if ($edit_option_form || defined($input{"options"})) {
                   1072:
                   1073:     my $formwhere = $scriptwhere;
                   1074:     $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                   1075:
3.149     scop     1076:     print <<EOF;
                   1077: <form method="get" action="${formwhere}">
                   1078: <input type="hidden" name="copt" value="1">
                   1079: EOF
3.120     scop     1080:     if ($cvstree ne $cvstreedefault) {
                   1081:       print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\">\n";
                   1082:     }
3.149     scop     1083:     print <<EOF;
                   1084: <center>
                   1085: <table cellpadding="0" cellspacing="0">
                   1086: <tr class="dir-header">
                   1087:  <th style="text-align: center">Preferences</th>
                   1088: </tr>
                   1089: <tr>
                   1090: <td>
                   1091: <label for="sortby" accesskey="F">Sort files by:
                   1092: <select id="sortby" name="sortby">
                   1093: <option value="">File</option>
                   1094: EOF
3.120     scop     1095:     print "<option", $bydate ? " selected" : "",
                   1096:       " value=\"date\">Age</option>\n";
                   1097:     print "<option", $byauthor ? " selected" : "",
                   1098:       " value=\"author\">Author</option>\n"
3.140     scop     1099:         if $show_author;
3.120     scop     1100:     print "<option", $byrev ? " selected" : "",
                   1101:       " value=\"rev\">Revision</option>\n";
                   1102:     print "<option", $bylog ? " selected" : "",
                   1103:       " value=\"log\">Log message</option>\n";
3.140     scop     1104:     print "</select></label>,\n";
                   1105:     print '<label for="ignorecase" accesskey="I">case-insensitive: ';
                   1106:     print "<input id=\"ignorecase\" name=\"ignorecase\" type=\"checkbox\"",
                   1107:       $input{'ignorecase'} ? " checked" : "", " value=\"1\"></label>\n";
                   1108:     print "<label for=\"logsort\" accesskey=\"L\">Sort log by: ";
3.120     scop     1109:     printLogSortSelect(0);
3.140     scop     1110:     print "</label></td>\n</tr>\n";
                   1111:     print "<tr>\n<td><label for=\"f\" accesskey=\"D\">Diff format: ";
3.120     scop     1112:     printDiffSelect(0);
3.140     scop     1113:     print '</label> ';
                   1114:     print '<label for="hideattic" accesskey="A">Hide files in Attic: ';
3.120     scop     1115:     print "<input id=\"hideattic\" name=\"hideattic\" type=\"checkbox\"",
3.149     scop     1116:       $input{'hideattic'} ? ' checked' : '',
                   1117:         " value=\"1\"></label></td>\n</tr>\n";
                   1118:     print "<tr>\n<td><label for=\"ln\" accesskey=\"N\">Show line numbers: ";
                   1119:     print "<input id=\"ln\" name=\"ln\" type=\"checkbox\"",
                   1120:       $input{ln} ? ' checked' : '', " value=\"1\"></label></td>\n</tr>\n";
                   1121:     print <<EOF;
                   1122: <tr>
                   1123:  <td align="center">
                   1124:   <input type="submit" value="Change Options" accesskey="C">
                   1125:  </td>
                   1126: </tr>
                   1127: </table>
                   1128: </center>
                   1129: </form>
                   1130: EOF
3.120     scop     1131:   }
                   1132:   html_footer();
3.80      knu      1133: }
3.1       knu      1134:
                   1135: ###############################
                   1136: # View Files
                   1137: ###############################
3.80      knu      1138: elsif (-f $fullname . ',v') {
3.114     scop     1139:
3.120     scop     1140:   if (forbidden_file($fullname)) {
                   1141:     fatal('403 Forbidden',
                   1142:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   1143:     return;
                   1144:   }
                   1145:
                   1146:   if (defined($input{'rev'}) || $doCheckout) {
                   1147:     &doCheckout($fullname, $input{'rev'});
                   1148:     gzipclose();
                   1149:     exit;
                   1150:   }
                   1151:
                   1152:   if (defined($input{'annotate'}) && $allow_annotate) {
                   1153:     &doAnnotate($input{'annotate'});
                   1154:     gzipclose();
                   1155:     exit;
                   1156:   }
                   1157:
                   1158:   if (defined($input{'r1'}) && defined($input{'r2'})) {
                   1159:     &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1160:             $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1161:     gzipclose();
                   1162:     exit;
                   1163:   }
3.132     scop     1164:
3.170     scop     1165:   if ($allow_cvsgraph && $input{graph}) {
                   1166:     if ($input{makeimage}) {
                   1167:       doGraph();
3.132     scop     1168:     } else {
3.170     scop     1169:       doGraphView();
3.132     scop     1170:     }
                   1171:     gzipclose();
                   1172:     exit;
                   1173:   }
                   1174:
3.120     scop     1175:   &doLog($fullname);
                   1176:
                   1177:   ##############################
                   1178:   # View Diff
                   1179:   ##############################
                   1180: } elsif ($fullname =~ s/\.diff$//
                   1181:          && -f $fullname . ",v"
                   1182:          && $input{'r1'}
                   1183:          && $input{'r2'})
                   1184: {
                   1185:
                   1186:   # $where-diff-removal if 'cvs rdiff' is used
                   1187:   # .. but 'cvs rdiff'doesn't support some options
                   1188:   # rcsdiff does (-w and -p), so it is disabled
                   1189:   # $where =~ s/\.diff$//;
                   1190:
                   1191:   # Allow diffs using the ".diff" extension
                   1192:   # so that browsers that default to the URL
                   1193:   # for a save filename don't save diff's as
                   1194:   # e.g. foo.c
                   1195:   &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1196:           $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1197:   gzipclose();
                   1198:   exit;
                   1199: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1|
                   1200:   && -f $newname . ",v")
                   1201: {
                   1202:
                   1203:   # The file has been removed and is in the Attic.
                   1204:   # Send a redirect pointing to the file in the Attic.
                   1205:   (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                   1206:   if ($ENV{QUERY_STRING} ne "") {
                   1207:     redirect("${newplace}?$ENV{QUERY_STRING}");
                   1208:   } else {
                   1209:     redirect($newplace);
                   1210:   }
                   1211:   exit;
3.80      knu      1212: } elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
3.120     scop     1213:   http_header("text/plain");
                   1214:   print "You matched the following files:\n";
                   1215:   print join ("\n", @files);
3.80      knu      1216:
3.120     scop     1217:   # Find the tags from each file
                   1218:   # Display a form offering diffs between said tags
3.80      knu      1219: } else {
3.120     scop     1220:   my $fh = do { local (*FH); };
                   1221:   my ($xtra, $module);
3.80      knu      1222:
3.120     scop     1223:   # Assume it's a module name with a potential path following it.
                   1224:   $xtra = (($module = $where) =~ s|/.*||) ? $& : '';
3.80      knu      1225:
3.120     scop     1226:   # Is there an indexed version of modules?
                   1227:   if (open($fh, "< $cvsroot/CVSROOT/modules")) {
                   1228:     while (<$fh>) {
                   1229:       if (/^(\S+)\s+(\S+)/o
                   1230:           && $module eq $1
                   1231:           && -d "$cvsroot/$2"
                   1232:           && $module ne $2)
                   1233:       {
                   1234:         redirect("$scriptname/$2$xtra$query");
                   1235:       }
                   1236:     }
                   1237:   }
                   1238:   fatal("404 Not Found", '%s: no such file or directory', $where);
3.80      knu      1239: }
3.23      knu      1240:
3.25      knu      1241: gzipclose();
3.80      knu      1242:
3.1       knu      1243: ## End MAIN
                   1244:
3.120     scop     1245: sub printDiffSelect($)
                   1246: {
                   1247:   my ($use_java_script) = @_;
                   1248:   my $f = $input{'f'};
                   1249:
                   1250:   print '<select id="f" name="f"';
                   1251:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1252:   print ">\n";
                   1253:
                   1254:   local $_;
                   1255:   for (@DIFFTYPES) {
                   1256:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1257:            $_, $f eq $_ ? ' selected' : '',
                   1258:            "\u$DIFFTYPES{$_}{'descr'}");
                   1259:   }
                   1260:
                   1261:   print "</select>";
                   1262: }
                   1263:
3.168     scop     1264: sub printDiffSelectStickyVars()
                   1265: {
                   1266:   while (my ($key, $val) = each %input) {
                   1267:     next if ($key eq 'f');
                   1268:     next if (defined($DEFAULTVALUE{$key}) && $DEFAULTVALUE{$key} eq $val);
                   1269:     print "<input type=\"hidden\" name=\"", urlencode($key), "\" value=\"",
                   1270:       urlencode($val), "\">\n";
                   1271:   }
                   1272: }
                   1273:
3.120     scop     1274: sub printLogSortSelect($)
                   1275: {
                   1276:   my ($use_java_script) = @_;
                   1277:
                   1278:   print '<select id="logsort" name="logsort"';
                   1279:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1280:   print ">\n";
                   1281:
                   1282:   local $_;
                   1283:   for (@LOGSORTKEYS) {
                   1284:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1285:            $_, $logsort eq $_ ? ' selected' : '',
                   1286:            "\u$LOGSORTKEYS{$_}{'descr'}");
                   1287:   }
                   1288:
                   1289:   print "</select>";
                   1290: }
                   1291:
                   1292: sub findLastModifiedSubdirs(@)
                   1293: {
                   1294:   my (@dirs) = @_;
                   1295:   my ($dirname, @files);
                   1296:
                   1297:   foreach $dirname (@dirs) {
                   1298:     next if ($dirname eq ".");
                   1299:     next if ($dirname eq "..");
                   1300:     my ($dir) = "$fullname/$dirname";
                   1301:     next if (!-d $dir);
                   1302:
                   1303:     my ($lastmod)     = undef;
                   1304:     my ($lastmodtime) = undef;
                   1305:     my $dh = do { local (*DH); };
                   1306:
                   1307:     opendir($dh, $dir) or next;
                   1308:     my (@filenames) = readdir($dh);
                   1309:     closedir($dh);
                   1310:
                   1311:     foreach my $filename (@filenames) {
                   1312:       $filename = "$dirname/$filename";
                   1313:       my ($file) = "$fullname/$filename";
                   1314:       next if ($filename !~ /,v$/ || !-f $file);
                   1315:
                   1316:       # Skip forbidden files.
                   1317:       (my $f = $file) =~ s/,v$//;
                   1318:       next if forbidden_file($f);
                   1319:
                   1320:       $filename =~ s/,v$//;
                   1321:       my $modtime = -M $file;
                   1322:
                   1323:       if (!defined($lastmod) || $modtime < $lastmodtime) {
                   1324:         $lastmod     = $filename;
                   1325:         $lastmodtime = $modtime;
                   1326:       }
                   1327:     }
                   1328:     push (@files, $lastmod) if (defined($lastmod));
                   1329:   }
                   1330:   return @files;
                   1331: }
                   1332:
                   1333: sub htmlify_sub(&$)
                   1334: {
                   1335:   (my $proc, local $_) = @_;
                   1336:   my @a = split (m`(<a [^>]+>[^<]*</a>)`i);
                   1337:   my $linked;
                   1338:   my $result = '';
                   1339:
                   1340:   while (($_, $linked) = splice(@a, 0, 2)) {
                   1341:     &$proc();
                   1342:     $result .= $_      if defined($_);
                   1343:     $result .= $linked if defined($linked);
                   1344:   }
                   1345:
                   1346:   $result;
                   1347: }
                   1348:
                   1349: sub htmlify($;$)
                   1350: {
                   1351:   (local $_, my $extra) = @_;
                   1352:
                   1353:   $_ = htmlquote($_);
                   1354:
                   1355:   # get URL's as link
                   1356:   s{
3.130     scop     1357:     ((https?|ftp)://.+?)([\s\']|&(quot|[lg]t);)
3.120     scop     1358:    }{
3.130     scop     1359:      &link($1, htmlunquote($1)) . $3
3.120     scop     1360:    }egx;
                   1361:
                   1362:   # get e-mails as link
                   1363:   $_ = htmlify_sub {
                   1364:     s<
                   1365:       [\w+=\-.!]+@[\w\-]+(\.[\w\-]+)+
                   1366:      ><
                   1367:        &link($&, "mailto:$&")
                   1368:      >egix;
                   1369:   } $_;
                   1370:
                   1371:   if ($extra) {
                   1372:
                   1373:     # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
                   1374:     if (defined($prcgi) && defined($re_prkeyword)) {
                   1375:       my $prev;
                   1376:
                   1377:       do {
                   1378:         $prev = $_;
                   1379:
                   1380:         $_ = htmlify_sub {
                   1381:           s{
                   1382:             (\b$re_prkeyword[:\#]?\s*
                   1383:              (?:
                   1384:               \#?
                   1385:               \d+[,\s]\s*
                   1386:              )*
                   1387:              \#?)
                   1388:             (\d+)\b
                   1389:            }{
                   1390:              $1 . &link($2, sprintf($prcgi, $2))
                   1391:            }egix;
                   1392:         } $_;
                   1393:       } while ($_ ne $prev);
                   1394:
                   1395:       if (defined($re_prcategories)) {
                   1396:         $_ = htmlify_sub {
                   1397:           s{
                   1398:             (\b$re_prcategories/(\d+)\b)
                   1399:            }{
                   1400:              &link($1, sprintf($prcgi, $2))
                   1401:            }egox;
                   1402:         } $_;
                   1403:       }
                   1404:     }
                   1405:
                   1406:     # get manpage specs as link: "foo.1" "foo(1)"
                   1407:     if (defined($mancgi)) {
                   1408:       $_ = htmlify_sub {
                   1409:         s{
3.143     knu      1410:           (
                   1411:            \b ( \w[\w+\-.]* (?: ::\w[\w+\-.]*)* )
3.120     scop     1412:            (?:
3.143     knu      1413:             \( ([0-9n]) \) \B
3.120     scop     1414:             |
3.143     knu      1415:             \. ([0-9n]) \b
3.120     scop     1416:            )
                   1417:           )
                   1418:          }{
3.149     scop     1419:             my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
                   1420:             ($name =~ /[A-Za-z]/ && $name !~ /\.(:|$)/)
                   1421:              ? &link($text, sprintf($mancgi, $section, $name))
                   1422:               : $text;
3.120     scop     1423:          }egx;
                   1424:       } $_;
                   1425:     }
                   1426:   }
                   1427:
                   1428:   $_;
                   1429: }
                   1430:
                   1431: sub spacedHtmlText($;$)
                   1432: {
                   1433:   local $_ = $_[0];
                   1434:   my $ts = $_[1] || $tabstop;
                   1435:
                   1436:   # Cut trailing spaces and tabs
                   1437:   s/[ \t]+$//;
                   1438:
                   1439:   if (defined($ts)) {
                   1440:
                   1441:     # Expand tabs
                   1442:     1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e;
                   1443:   }
                   1444:
                   1445:   # replace <tab> and <space> (\001 is to protect us from htmlify)
                   1446:   # gzip can make excellent use of this repeating pattern :-)
                   1447:   if ($hr_breakable) {
                   1448:
                   1449:     # make every other space 'breakable'
                   1450:     s/  / \001nbsp;/g;    # 2 * <space>
                   1451:                           # leave single space as it is
                   1452:   } else {
                   1453:     s/ /\001nbsp;/g;
                   1454:   }
                   1455:
                   1456:   $_ = htmlify($_, $allow_source_extra);
                   1457:
                   1458:   # unescape
                   1459:   y/\001/&/;
                   1460:
                   1461:   return $_;
                   1462: }
                   1463:
                   1464: # Note that this doesn't htmlquote the first argument...
                   1465: sub link($$)
                   1466: {
                   1467:   my ($name, $url) = @_;
                   1468:
                   1469:   $url =~ s/:/sprintf("%%%02x", ord($&))/eg
                   1470:     if $url =~ /^[^a-z]/;    # relative
                   1471:
                   1472:   sprintf '<a href="%s">%s</a>', hrefquote($url), $name;
                   1473: }
                   1474:
                   1475: sub revcmp($$)
                   1476: {
                   1477:   my ($rev1, $rev2) = @_;
                   1478:
                   1479:   # make no comparison for a tag or a branch
                   1480:   return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1481:
                   1482:   my (@r1) = split (/\./, $rev1);
                   1483:   my (@r2) = split (/\./, $rev2);
                   1484:   my ($a, $b);
                   1485:
                   1486:   while (($a = shift (@r1)) && ($b = shift (@r2))) {
                   1487:     if ($a != $b) {
                   1488:       return $a <=> $b;
                   1489:     }
                   1490:   }
                   1491:   if (@r1) { return  1; }
                   1492:   if (@r2) { return -1; }
                   1493:   return 0;
                   1494: }
                   1495:
                   1496: sub fatal($$@)
                   1497: {
                   1498:   my ($errcode, $format, @args) = @_;
                   1499:   if ($is_mod_perl) {
                   1500:     Apache->request->status((split (/ /, $errcode))[0]);
                   1501:   } else {
                   1502:     print "Status: $errcode\r\n";
                   1503:   }
3.131     scop     1504:   html_header('Error');
3.120     scop     1505:   print "<p>Error: ", sprintf($format, map(htmlquote($_), @args)), "</p>\n";
                   1506:   html_footer();
                   1507:   exit(1);
                   1508: }
                   1509:
                   1510: sub redirect($)
                   1511: {
                   1512:   my ($url) = @_;
                   1513:   if ($is_mod_perl) {
                   1514:     Apache->request->status(301);
                   1515:     Apache->request->header_out(Location => $url);
                   1516:   } else {
                   1517:     print "Status: 301 Moved\r\n";
                   1518:     print "Location: $url\r\n";
                   1519:   }
3.131     scop     1520:   html_header('Moved');
3.120     scop     1521:   print "<p>This document is located ", &link('here', $url), "</p>\n";
                   1522:   html_footer();
                   1523:   exit(1);
                   1524: }
                   1525:
                   1526: sub safeglob($)
                   1527: {
                   1528:   my ($filename) = @_;
                   1529:   my ($dirname);
                   1530:   my (@results);
                   1531:   my $dh = do { local (*DH); };
                   1532:
                   1533:   ($dirname = $filename) =~ s|/[^/]+$||;
                   1534:   $filename =~ s|.*/||;
                   1535:
                   1536:   if (opendir($dh, $dirname)) {
                   1537:     my $glob = $filename;
                   1538:     my $t;
                   1539:
3.149     scop     1540:     #   transform filename from glob to regex.  Deal with:
                   1541:     #   [, {, ?, * as glob chars
                   1542:     #   make sure to escape all other regex chars
3.120     scop     1543:     $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1544:     $glob =~ s/\*/.*/g;
                   1545:     $glob =~ s/\?/./g;
                   1546:     $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
                   1547:     foreach (readdir($dh)) {
                   1548:
                   1549:       if (/^${glob}$/) {
                   1550:         push (@results, "$dirname/" . $_);
                   1551:       }
                   1552:     }
                   1553:     closedir($dh);
                   1554:   }
                   1555:
                   1556:   @results;
                   1557: }
                   1558:
3.160     scop     1559:
3.120     scop     1560: sub search_path($)
                   1561: {
                   1562:   my ($command) = @_;
3.160     scop     1563:   for my $d (split (/:/, $command_path)) {
3.120     scop     1564:     return "$d/$command" if -x "$d/$command";
                   1565:   }
                   1566:   return '';
                   1567: }
                   1568:
3.156     scop     1569:
                   1570: sub getMimeType($;$)
3.120     scop     1571: {
3.156     scop     1572:   my ($fullname, $binary) = @_;
                   1573:   $binary = ($keywordsubstitution && $keywordsubstitution =~ /b/)
                   1574:     unless defined($binary);
                   1575:
                   1576:   (my $suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1577:
                   1578:   my $mimetype = $MTYPES{$suffix};
                   1579:   $mimetype  ||= $MimeTypes->mimeTypeOf($fullname) if defined($MimeTypes);
                   1580:
                   1581:   if (!$mimetype && $suffix ne '*' && -f $mime_types && -r _) {
                   1582:     my $fh = do { local (*FH); };
                   1583:     if (open($fh, $mime_types)) {
                   1584:       my $re = sprintf('^\s*(\S+\/\S+)\s.+\b%s\b', quotemeta($suffix));
                   1585:       while (my $line = <$fh>) {
                   1586:         if ($line =~ $re) {
                   1587:           $mimetype = $1;
                   1588:           $MTYPES{$suffix} = $mimetype;
                   1589:           last;
                   1590:         }
3.120     scop     1591:       }
3.156     scop     1592:       close($fh);
                   1593:     } else {
                   1594:       warn("Can't open MIME types file $mime_types for reading: $!");
3.120     scop     1595:     }
                   1596:   }
                   1597:
3.156     scop     1598:   $mimetype ||= $MTYPES{'*'};
                   1599:   $mimetype ||= $binary ? 'application/octet-stream' : 'text/plain';
3.120     scop     1600:   return $mimetype;
3.1       knu      1601: }
                   1602:
3.156     scop     1603:
3.1       knu      1604: ###############################
3.24      knu      1605: # read first lines like head(1)
                   1606: ###############################
3.120     scop     1607: sub head($;$)
                   1608: {
                   1609:   my $fh        = $_[0];
                   1610:   my $linecount = $_[1] || 10;
3.24      knu      1611:
3.120     scop     1612:   my @buf;
                   1613:
                   1614:   if ($linecount > 0) {
                   1615:     my $i;
                   1616:     for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1617:       push @buf, scalar <$fh>;
                   1618:     }
                   1619:   } else {
                   1620:     @buf = <$fh>;
                   1621:   }
                   1622:
                   1623:   @buf;
3.24      knu      1624: }
                   1625:
                   1626: ###############################
                   1627: # scan vim and Emacs directives
                   1628: ###############################
3.120     scop     1629: sub scan_directives(@)
                   1630: {
                   1631:   my $ts = undef;
3.24      knu      1632:
3.120     scop     1633:   for (@_) {
                   1634:     $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1635:   }
3.24      knu      1636:
3.120     scop     1637:   ('tabstop' => $ts);
3.24      knu      1638: }
                   1639:
3.120     scop     1640: sub openOutputFilter()
                   1641: {
                   1642:   return if !defined($output_filter) || $output_filter eq '';
3.86      knu      1643:
3.120     scop     1644:   open(STDOUT, "|-") and return;
3.86      knu      1645:
3.120     scop     1646:   # child of child
3.165     scop     1647:   open(STDERR, '>', devnull());
3.120     scop     1648:   exec($output_filter) or exit -1;
3.86      knu      1649: }
                   1650:
3.24      knu      1651: ###############################
3.1       knu      1652: # show Annotation
                   1653: ###############################
3.133     scop     1654: sub doAnnotate($)
3.120     scop     1655: {
                   1656:   my ($rev) = @_;
                   1657:
                   1658:   # make sure the revisions are wellformed, for security
                   1659:   # reasons ..
                   1660:   if ($rev =~ /[^\w.]/) {
                   1661:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1662:   }
                   1663:
3.174   ! scop     1664:   (my $pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
        !          1665:   (my $filename = $where) =~ s/^.*\///;
3.126     scop     1666:
3.174   ! scop     1667:   # This annotate version is based on the cvs annotate-demo Perl script by
        !          1668:   # Cyclic Software.  It was written by Cyclic Software,
        !          1669:   # http://www.cyclic.com/, and is in the public domain.
        !          1670:   # We could abandon the use of rlog, rcsdiff and co using
        !          1671:   # the cvs server in a similiar way one day (..after rewrite).
        !          1672:
        !          1673:   local (*CVS_IN, *CVS_OUT);
        !          1674:   my ($h, $err) =
        !          1675:     startproc([ $CMD{cvs}, @annotate_options, 'server' ],
        !          1676:               '<pipe', \*CVS_IN, '>pipe', \*CVS_OUT, timeout(30));
        !          1677:   fatal('500 Internal Error', $err) unless $h;
3.120     scop     1678:
                   1679:   # OK, first send the request to the server.  A simplified example is:
                   1680:   #     Root /home/kingdon/zwork/cvsroot
                   1681:   #     Argument foo/xx
                   1682:   #     Directory foo
                   1683:   #     /home/kingdon/zwork/cvsroot/foo
                   1684:   #     Directory .
                   1685:   #     /home/kingdon/zwork/cvsroot
                   1686:   #     annotate
                   1687:   # although as you can see there are a few more details.
                   1688:
3.174   ! scop     1689:   print CVS_IN "Root $cvsroot\n";
        !          1690:   print CVS_IN
3.120     scop     1691:     "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1692:
                   1693:   # Don't worry about sending valid-requests, the server just needs to
                   1694:   # support "annotate" and if it doesn't, there isn't anything to be done.
3.174   ! scop     1695:   print CVS_IN "UseUnchanged\n";
        !          1696:   print CVS_IN "Argument -r\n";
        !          1697:   print CVS_IN "Argument $rev\n";
        !          1698:   print CVS_IN "Argument $where\n";
3.120     scop     1699:
                   1700:   # The protocol requires us to fully fake a working directory (at
                   1701:   # least to the point of including the directories down to the one
                   1702:   # containing the file in question).
3.123     scop     1703:   # So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
                   1704:   my $path = '';
                   1705:   foreach my $dir (split('/', $where)) {
3.120     scop     1706:
                   1707:     if ($path eq "") {
3.123     scop     1708:       # In our example, $dir is "dir".
                   1709:       $path = $dir;
3.120     scop     1710:     } else {
3.174   ! scop     1711:       print CVS_IN "Directory $path\n";
        !          1712:       print CVS_IN "$cvsroot/$path\n";
3.120     scop     1713:
                   1714:       # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1715:       # And the next time, "file" and "dir/sdir/file" (which then gets
                   1716:       # ignored, because we don't need to send Directory for the file).
3.123     scop     1717:       $path .= "/$dir";
3.120     scop     1718:     }
                   1719:   }
3.123     scop     1720:   undef $path;
3.120     scop     1721:
                   1722:   # And the last "Directory" before "annotate" is the top level.
3.174   ! scop     1723:   print CVS_IN "Directory .\n";
        !          1724:   print CVS_IN "$cvsroot\n";
3.120     scop     1725:
3.174   ! scop     1726:   print CVS_IN "annotate\n";
3.120     scop     1727:
                   1728:   # OK, we've sent our command to the server.  Thing to do is to
                   1729:   # close the writer side and get all the responses.  If "cvs server"
                   1730:   # were nicer about buffering, then we could just leave it open, I think.
3.174   ! scop     1731:   close(CVS_IN) or die "cannot close: $!";
3.120     scop     1732:
3.133     scop     1733:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
3.120     scop     1734:
3.136     scop     1735:   print '<h3 style="text-align: center">Annotation of ',
                   1736:     htmlquote("$pathname$filename"), ", revision $rev</h3>\n";
3.120     scop     1737:
                   1738:   # Ready to get the responses from the server.
                   1739:   # For example:
                   1740:   #     E Annotations for foo/xx
                   1741:   #     E ***************
                   1742:   #     M 1.3          (kingdon  06-Sep-97): hello
                   1743:   #     ok
                   1744:   my ($lineNr) = 0;
                   1745:   my ($oldLrev, $oldLusr) = ("", "");
                   1746:   my ($revprint, $usrprint);
                   1747:
                   1748:   if ($annTable) {
                   1749:     print
                   1750:       "<table style=\"border: none\" cellspacing=\"0\" cellpadding=\"0\">\n";
                   1751:   } else {
                   1752:     print "<pre>";
                   1753:   }
                   1754:
                   1755:   # prefetch several lines
3.174   ! scop     1756:   my @buf = head(*CVS_OUT);
3.120     scop     1757:
                   1758:   my %d = scan_directives(@buf);
                   1759:
3.174   ! scop     1760:   while (@buf || !eof(*CVS_OUT)) {
        !          1761:     $_ = @buf ? shift @buf : <CVS_OUT>;
3.120     scop     1762:
                   1763:     my @words = split;
                   1764:
                   1765:     # Adding one is for the (single) space which follows $words[0].
                   1766:     my $rest = substr($_, length($words[0]) + 1);
                   1767:     if ($words[0] eq "E") {
                   1768:       next;
                   1769:     } elsif ($words[0] eq "M") {
                   1770:       $lineNr++;
                   1771:       (my $lrev = substr($_, 2,  13)) =~ y/ //d;
                   1772:       (my $lusr = substr($_, 16, 9))  =~ y/ //d;
                   1773:       my $line = substr($_, 36);
                   1774:       my $isCurrentRev = ($rev eq $lrev);
                   1775:
                   1776:       # we should parse the date here ..
                   1777:       if ($lrev eq $oldLrev) {
                   1778:         $revprint = sprintf('%-8s', '');
                   1779:       } else {
                   1780:         $revprint = sprintf('%-8s', $lrev);
                   1781:         $revprint =~ s`\S+`&link($&, "$scriptwhere$query#rev$&")`e;    # `
                   1782:         $oldLusr = '';
                   1783:       }
                   1784:
                   1785:       if ($lusr eq $oldLusr) {
                   1786:         $usrprint = '';
                   1787:       } else {
                   1788:         $usrprint = $lusr;
                   1789:       }
                   1790:       $oldLrev = $lrev;
                   1791:       $oldLusr = $lusr;
                   1792:
                   1793:       # Set bold for text-based browsers only - graphical
                   1794:       # browsers show bold fonts a bit wider than regular fonts,
                   1795:       # so it looks irregular.
                   1796:       print "<b>" if ($isCurrentRev && $is_textbased);
                   1797:
3.136     scop     1798:       $usrprint = sprintf('%-8s', $usrprint);
                   1799:       printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
                   1800:         htmlquote($usrprint), $lineNr;
3.120     scop     1801:       print spacedHtmlText($line, $d{'tabstop'});
                   1802:
                   1803:       print "</b>" if ($isCurrentRev && $is_textbased);
                   1804:     } elsif ($words[0] eq "ok") {
                   1805:
                   1806:       # We could complain about any text received after this, like the
                   1807:       # CVS command line client.  But for simplicity, we don't.
                   1808:     } elsif ($words[0] eq "error") {
                   1809:       fatal("500 Internal Error",
                   1810:             'Error occured during annotate: <b>%s</b>', $_);
                   1811:     }
                   1812:   }
                   1813:
                   1814:   if ($annTable) {
                   1815:     print "</table>";
                   1816:   } else {
                   1817:     print "</pre>";
                   1818:   }
3.124     scop     1819:   html_footer();
                   1820:
3.174   ! scop     1821:   finish($h);
3.1       knu      1822: }
                   1823:
                   1824: ###############################
                   1825: # make Checkout
                   1826: ###############################
3.120     scop     1827: sub doCheckout($$)
                   1828: {
                   1829:   my ($fullname, $rev) = @_;
3.156     scop     1830:   my ($revopt);
3.120     scop     1831:
                   1832:   if ($rev eq 'HEAD' || $rev eq '.') {
                   1833:     $rev = undef;
                   1834:   }
                   1835:
                   1836:   # make sure the revisions a wellformed, for security
                   1837:   # reasons ..
                   1838:   if (defined($rev) && $rev =~ /[^\w.]/) {
                   1839:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1840:   }
                   1841:
                   1842:   # get mimetype
3.156     scop     1843:   my $mimetype;
3.120     scop     1844:   if (defined($input{"content-type"})
                   1845:     && ($input{"content-type"} =~ /\S\/\S/))
                   1846:   {
                   1847:     $mimetype = $input{"content-type"};
                   1848:   } else {
3.156     scop     1849:     $mimetype = getMimeType($fullname);
3.120     scop     1850:   }
                   1851:
3.163     scop     1852:   my $moddate = undef;
3.120     scop     1853:   if (defined($rev)) {
                   1854:     $revopt = "-r$rev";
                   1855:     if ($use_moddate) {
                   1856:       readLog($fullname, $rev);
                   1857:       $moddate = $date{$rev};
                   1858:     }
                   1859:   } else {
                   1860:     $revopt = "-rHEAD";
                   1861:     if ($use_moddate) {
                   1862:       readLog($fullname);
                   1863:       $moddate = $date{$symrev{HEAD}};
                   1864:     }
                   1865:   }
                   1866:
3.174   ! scop     1867:   # Change to temporary directory first to avoid non-readable cgi-bin dirs.
        !          1868:   chdir(tmpdir());
        !          1869:   # Use abs_path to work around a bug of cvs -p; expand symlinks.
        !          1870:   my @cmd = ($CMD{cvs}, @cvs_options,
        !          1871:              '-d', abs_path($cvsroot), 'co', '-p', $revopt, $where);
        !          1872:   local $^W = 0; # IPC::Run is noisy w/perl 5.8.  Also prevents weird hangs.
        !          1873:   local (*CVS_OUT, *CVS_ERR);
        !          1874:   my ($h, $err) =
        !          1875:     startproc(\@cmd, \"", '>pipe', \*CVS_OUT, '2>pipe', \*CVS_ERR,timeout(30));
        !          1876:   fatal('500 Internal Error', $err) unless $h;
3.120     scop     1877:
3.174   ! scop     1878:   if (eof(CVS_ERR)) {
        !          1879:     finish($h);
3.120     scop     1880:     fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
                   1881:   }
                   1882:
                   1883:   #===================================================================
                   1884:   #Checking out squid/src/ftp.c
                   1885:   #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1886:   #VERS: 1.1.1.28.6.2
                   1887:   #***************
                   1888:
                   1889:   # Parse CVS header
                   1890:   my ($revision, $filename, $cvsheader);
                   1891:   $filename = "";
3.174   ! scop     1892:   while (<CVS_ERR>) {
3.120     scop     1893:     last if (/^\*\*\*\*/);
                   1894:     $revision = $1 if (/^VERS: (.*)$/);
                   1895:
                   1896:     if (/^Checking out (.*)$/) {
                   1897:       $filename = $1;
                   1898:       $filename =~ s/^\.\/*//;
                   1899:     }
                   1900:     $cvsheader .= $_;
                   1901:   }
                   1902:
                   1903:   if ($filename ne $where) {
3.174   ! scop     1904:     finish($h);
3.120     scop     1905:     fatal("500 Internal Error",
                   1906:           'Unexpected output from cvs co: %s', $cvsheader);
                   1907:   }
                   1908:
3.146     scop     1909:   if ($mimetype =~ $CvsWebMarkupRE) {
3.163     scop     1910:     # Here we know the last modified date, but don't know if tags have been
                   1911:     # added since: no last-modified (for now).
3.174   ! scop     1912:     cvswebMarkup(\*CVS_OUT, $fullname, $revision);
3.120     scop     1913:   } else {
3.163     scop     1914:     http_header($mimetype, $moddate);
3.174   ! scop     1915:     local $/ = undef;
        !          1916:     print <CVS_OUT>;
3.120     scop     1917:   }
3.174   ! scop     1918:   finish($h);
1.12      fenner   1919: }
                   1920:
3.174   ! scop     1921:
3.163     scop     1922: sub cvswebMarkup($$$;$)
3.120     scop     1923: {
3.163     scop     1924:   my ($filehandle, $fullname, $revision, $mod) = @_;
3.120     scop     1925:   my ($pathname,   $filename);
3.1       knu      1926:
3.120     scop     1927:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1928:   ($filename = $where) =~ s/^.*\///;
3.156     scop     1929:   my $fileurl = urlencode($filename);
                   1930:   my $mimetype = getMimeType($filename);
3.120     scop     1931:
3.163     scop     1932:   navigateHeader($scriptwhere, $pathname, $filename, $revision, 'view', $mod);
3.120     scop     1933:
3.144     scop     1934:   print <<EOF;
                   1935: <hr noshade>
                   1936: <table width="100%">
                   1937: <tr>
                   1938: <td class="log-markup">File:&nbsp;
                   1939: EOF
3.159     scop     1940:   print &clickablePath($where, 1), ' - (';
3.144     scop     1941:   &download_link($fileurl, $revision, 'download');
3.156     scop     1942:   if ($mimetype ne 'text/plain') {
3.159     scop     1943:     print ' / ';
3.120     scop     1944:     &download_link($fileurl, $revision, "as text", "text/plain");
                   1945:   }
3.159     scop     1946:   print ')';
3.170     scop     1947:   print ' - ', &graph_link('', 'graph') if $allow_cvsgraph;
3.120     scop     1948:   print "<br>\n";
                   1949:
                   1950:   if ($show_log_in_markup) {
                   1951:     readLog($fullname);    #,$revision);
                   1952:     printLog($revision, 0);
                   1953:   } else {
                   1954:     print "Version: <b>$revision</b><br>\n";
                   1955:     print "Tag: <b>", $input{only_with_tag}, "</b><br>\n"
                   1956:       if $input{only_with_tag};
                   1957:   }
                   1958:   print "</td>\n</tr>\n</table>";
                   1959:   my $url = download_url($fileurl, $revision, $mimetype);
                   1960:   print "<hr noshade>";
                   1961:
                   1962:   if ($mimetype =~ /^image/) {
3.160     scop     1963:     printf '<img src="%s" alt="%s"><br>',
                   1964:       hrefquote("$url$barequery"), htmlquote($filename);
3.120     scop     1965:   } elsif ($mimetype =~ m%^application/pdf%) {
3.157     scop     1966:     printf '<embed src="%s" width="100%%" height="100%%"><br>',
                   1967:       hrefquote("$url$barequery");
3.120     scop     1968:   } elsif ($preformat_in_markup) {
                   1969:     print "<pre>";
                   1970:
                   1971:     # prefetch several lines
                   1972:     my @buf = head($filehandle);
                   1973:
                   1974:     my %d = scan_directives(@buf);
                   1975:
                   1976:     while (@buf || !eof($filehandle)) {
                   1977:       $_ = @buf ? shift @buf : <$filehandle>;
                   1978:
                   1979:       print spacedHtmlText($_, $d{'tabstop'});
                   1980:     }
                   1981:     print "</pre>";
                   1982:   } else {
                   1983:
3.148     scop     1984:     my $enscript_hl = undef;
                   1985:
                   1986:     if ($allow_enscript) {
                   1987:       while (my ($hl, $regex) = each %enscript_types) {
3.149     scop     1988:         if ($filename =~ $regex) {
                   1989:           $enscript_hl = $hl;
                   1990:           last;
                   1991:         }
3.148     scop     1992:       }
                   1993:     }
                   1994:
3.149     scop     1995:     print '<pre>';
3.167     scop     1996:     my $linenumbers = $input{ln} || 0;
3.149     scop     1997:
3.148     scop     1998:     if ($enscript_hl) {
3.167     scop     1999:       doEnscript($filehandle, $enscript_hl, $linenumbers);
3.148     scop     2000:
                   2001:     } else {
3.167     scop     2002:       my $ln = 0;
3.148     scop     2003:       while (<$filehandle>) {
3.167     scop     2004:         if ($linenumbers) {
                   2005:           $ln++;
                   2006:           printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
3.149     scop     2007:         }
                   2008:         print htmlquote($_);
3.148     scop     2009:       }
3.120     scop     2010:     }
3.149     scop     2011:
                   2012:     print "</pre>\n";
3.120     scop     2013:   }
3.131     scop     2014:   html_footer();
3.120     scop     2015: }
                   2016:
3.156     scop     2017:
3.120     scop     2018: sub viewable($)
                   2019: {
3.156     scop     2020:   my $mimetype = shift || '';
                   2021:   return ($allow_markup && $mimetype =~ m%^((text|image)/|application/pdf)%);
                   2022: }
3.120     scop     2023:
3.1       knu      2024:
                   2025: ###############################
                   2026: # Show Colored Diff
                   2027: ###############################
3.120     scop     2028: sub doDiff($$$$$$)
                   2029: {
                   2030:   my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   2031:   my $fh = do { local (*FH); };
                   2032:   my ($rev1, $rev2, $sym1, $sym2, $f1, $f2);
                   2033:
                   2034:   if (&forbidden_file($fullname)) {
                   2035:     fatal("403 Forbidden",
                   2036:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   2037:   }
                   2038:
                   2039:   if ($r1 =~ /([^:]+)(:(.+))?/) {
                   2040:     $rev1 = $1;
                   2041:     $sym1 = $3;
                   2042:   }
                   2043:   if ($r1 eq 'text') {
                   2044:     $rev1 = $tr1;
                   2045:     $sym1 = "";
                   2046:   }
                   2047:
                   2048:   if ($r2 =~ /([^:]+)(:(.+))?/) {
                   2049:     $rev2 = $1;
                   2050:     $sym2 = $3;
                   2051:   }
                   2052:   if ($r2 eq 'text') {
                   2053:     $rev2 = $tr2;
                   2054:     $sym2 = "";
                   2055:   }
                   2056:
                   2057:   # make sure the revisions a wellformed, for security
                   2058:   # reasons ..
                   2059:   if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
                   2060:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   2061:   }
                   2062:
                   2063:   #
                   2064:   # rev1 and rev2 are now both numeric revisions.
                   2065:   # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   2066:   # XXX should we warn about the fact that we do this?
                   2067:   if (&revcmp($rev1, $rev2) > 0) {
                   2068:     my ($tmp1, $tmp2) = ($rev1, $sym1);
                   2069:     ($rev1, $sym1) = ($rev2, $sym2);
                   2070:     ($rev2, $sym2) = ($tmp1, $tmp2);
                   2071:   }
                   2072:   my $difftype = $DIFFTYPES{$f};
                   2073:
                   2074:   if (!$difftype) {
                   2075:     fatal("400 Bad arguments", 'Diff format %s not understood', $f);
                   2076:   }
                   2077:
                   2078:   my @difftype       = @{$difftype->{'opts'}};
                   2079:   my $human_readable = $difftype->{'colored'};
                   2080:
                   2081:   # apply special options
                   2082:   if ($showfunc) {
                   2083:     push @difftype, '-p' if $f ne 's';
                   2084:
                   2085:     my ($re1, $re2);
                   2086:
                   2087:     while (($re1, $re2) = each %funcline_regexp) {
                   2088:       if ($fullname =~ /$re1/) {
                   2089:         push @difftype, '-F', $re2;
                   2090:         last;
                   2091:       }
                   2092:     }
                   2093:   }
                   2094:
                   2095:   if ($human_readable) {
                   2096:     if ($hr_ignwhite) {
                   2097:       push @difftype, '-w';
                   2098:     }
                   2099:     if ($hr_ignkeysubst) {
                   2100:       push @difftype, '-kk';
                   2101:     }
                   2102:   }
                   2103:
                   2104:   if (!open($fh, "-|")) {    # child
                   2105:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   2106:     openOutputFilter();
3.166     scop     2107:     exec($CMD{rcsdiff}, @rcsdiff_options, @difftype, "-r$rev1", "-r$rev2",
                   2108:          $fullname) or exit -1;
3.120     scop     2109:   }
3.166     scop     2110:
3.120     scop     2111:   if ($human_readable) {
3.168     scop     2112:     #
                   2113:     # Human readable diff.
                   2114:     #
                   2115:     human_readable_diff($fh, $rev2);
                   2116:     html_footer();
                   2117:     gzipclose();
                   2118:     exit;
                   2119:
                   2120:   } elsif ($f =~ /^([ucs])c$/) {
                   2121:     #
                   2122:     # Enscript colored diff.
                   2123:     #
                   2124:     my $hl = 'diff';
                   2125:     $hl .= $1 if ($1 eq 'u' || $1 eq 's');
                   2126:     (my $where_nd = $where)       =~ s/\.diff$//;
                   2127:     (my $pathname = $where_nd)    =~ s|(Attic\/)?[^/]*$||;
                   2128:     (my $filename = $where_nd)    =~ s|^.*/||;
                   2129:     (my $swhere   = $scriptwhere) =~ s|\.diff$||;
                   2130:     navigateHeader($swhere, $pathname, $filename, $rev2, 'diff');
                   2131:     printf(<<EOF, $where_nd, $rev1, $rev2);
                   2132: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
                   2133: <pre>
                   2134: EOF
3.174   ! scop     2135:     doEnscript(\$fh, $hl, 0);
3.168     scop     2136:     print <<EOF;
                   2137: </pre>
                   2138: <hr style="width: 100%" noshade>
                   2139: <form method="get" action="$scriptwhere">
                   2140: EOF
                   2141:     printDiffSelectStickyVars();
                   2142:     print 'Diff format: ';
                   2143:     printDiffSelect($use_java_script);
                   2144:     print "<input type=\"submit\" value=\"Show\">\n</form>\n";
3.120     scop     2145:     html_footer();
                   2146:     gzipclose();
                   2147:     exit;
3.168     scop     2148:
3.120     scop     2149:   } else {
3.168     scop     2150:     #
                   2151:     # Plain diff.
                   2152:     #
3.120     scop     2153:     http_header("text/plain");
                   2154:   }
                   2155:
                   2156:   #
                   2157:   #===================================================================
                   2158:   #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   2159:   #retrieving revision 1.16
                   2160:   #retrieving revision 1.17
                   2161:   #diff -c -r1.16 -r1.17
                   2162:   #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2163:   #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   2164:   #
                   2165:   # Ideas:
                   2166:   # - nuke the stderr output if it's what we expect it to be
                   2167:   # - Add "no differences found" if the diff command supplied no output.
                   2168:   #
                   2169:   #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2170:   #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   2171:   # (bogus example, but...)
                   2172:   #
                   2173:   if (grep { $_ eq '-u' } @difftype) {
                   2174:     $f1 = '---';
                   2175:     $f2 = '\+\+\+';
                   2176:   } else {
                   2177:     $f1 = '\*\*\*';
                   2178:     $f2 = '---';
                   2179:   }
                   2180:
                   2181:   while (<$fh>) {
                   2182:     if (m|^$f1 $cvsroot|o) {
                   2183:       s|$cvsroot/||o;
                   2184:       if ($sym1) {
                   2185:         chop;
                   2186:         $_ .= " $sym1\n";
                   2187:       }
                   2188:     } elsif (m|^$f2 $cvsroot|o) {
                   2189:       s|$cvsroot/||o;
                   2190:
                   2191:       if ($sym2) {
                   2192:         chop;
                   2193:         $_ .= " $sym2\n";
                   2194:       }
                   2195:     }
                   2196:     print $_;
                   2197:   }
                   2198:   close($fh);
1.12      fenner   2199: }
                   2200:
3.1       knu      2201: ###############################
                   2202: # Show Logs ..
                   2203: ###############################
3.120     scop     2204: sub getDirLogs($$@)
                   2205: {
                   2206:   my ($cvsroot, $dirname, @otherFiles) = @_;
3.139     scop     2207:   my $tag = $input{only_with_tag};
                   2208:   my $DirName = "$cvsroot/$where";
3.120     scop     2209:
3.139     scop     2210:   my @files = &safeglob("$DirName/*,v");
                   2211:   push (@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
3.120     scop     2212:   foreach my $file (@otherFiles) {
                   2213:     push (@files, "$DirName/$file");
                   2214:   }
                   2215:
3.150     scop     2216:   # Weed out unreadable files.
                   2217:   my $i = 0;
                   2218:   my @unreadable = ();
                   2219:   while ($i < scalar(@files)) {
                   2220:     if (-r $files[$i]) {
                   2221:       $i++;
                   2222:     } else {
                   2223:       push(@unreadable, splice(@files, $i, 1));
                   2224:     }
                   2225:   }
                   2226:
3.139     scop     2227:   # If there are no files, we're done.
3.150     scop     2228:   return @unreadable unless @files;
3.120     scop     2229:
3.139     scop     2230:   my @cmd = ($CMD{rlog});
                   2231:   # Can't use -r<tag> as '-' is allowed in tagnames,
                   2232:   # but misinterpreted by rlog.
                   2233:   push(@cmd, '-r') unless defined($tag);
3.120     scop     2234:
3.139     scop     2235:   my $fh = do { local (*FH); };
                   2236:   if (!open($fh, '-|')) {            # Child
3.165     scop     2237:     open(STDERR, '>', devnull());    # Ignore rlog's complaints.
3.139     scop     2238:     openOutputFilter();
                   2239:     if ($file_list_len && $file_list_len > 1) {
                   2240:       while (scalar(@files) > $file_list_len) {  # Process files in chunks.
                   2241:         system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
                   2242:       }
3.120     scop     2243:     }
3.139     scop     2244:     exec(@cmd, @files) or exit -1;
                   2245:   }
                   2246:   undef @cmd;
3.120     scop     2247:
3.139     scop     2248:   my $state = 'start';
                   2249:   my ($date, $branchpoint, $branch, $log, @filetags);
3.152     scop     2250:   my ($rev, $revision, $revwanted, $filename, $head, $author, $keywordsubst);
3.120     scop     2251:
                   2252:   while (<$fh>) {
                   2253:     if ($state eq "start") {
                   2254:
                   2255:       #Next file. Initialize file variables
                   2256:       $rev         = '';
                   2257:       $revwanted   = '';
                   2258:       $branch      = '';
                   2259:       $branchpoint = '';
                   2260:       $filename    = '';
                   2261:       $log         = '';
                   2262:       $revision    = '';
                   2263:       %symrev      = ();
                   2264:       @filetags    = ();
3.152     scop     2265:       $keywordsubst= '';
3.120     scop     2266:
                   2267:       #jump to head state
                   2268:       $state = "head";
                   2269:     }
3.144     scop     2270:
3.120     scop     2271:     again:
                   2272:
                   2273:     if ($state eq "head") {
                   2274:
                   2275:       #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   2276:
                   2277:       if (/^Working file: (.+)$/) {
                   2278:         $filename = $1;
                   2279:       } elsif (/^head: (.+)$/) {
                   2280:         $head = $1;
                   2281:       } elsif (/^branch: (.+)$/) {
                   2282:         $branch = $1;
3.152     scop     2283:       } elsif (/^keyword substitution: (.+)$/) {
                   2284:         $keywordsubst = $1;
3.120     scop     2285:       } elsif (/^symbolic names:/) {
                   2286:         $state = "tags";
                   2287:         ($branch = $head) =~ s/\.\d+$//
                   2288:           if $branch eq '';
                   2289:         $branch =~ s/(\d+)$/0.$1/;
                   2290:         $symrev{MAIN}  = $branch;
                   2291:         $symrev{HEAD}  = $branch;
                   2292:         $alltags{MAIN} = 1;
                   2293:         $alltags{HEAD} = 1;
                   2294:         push (@filetags, "MAIN", "HEAD");
                   2295:       } elsif (/$LOG_REVSEPARATOR/o) {
                   2296:         $state = "log";
                   2297:         $rev   = '';
                   2298:         $date  = '';
                   2299:         $log   = '';
                   2300:
                   2301:         # Try to reconstruct the relative filename if RCS spits out a full path
                   2302:         $filename =~ s%^\Q$DirName\E/%%;
                   2303:       }
                   2304:       next;
                   2305:     }
                   2306:
                   2307:     if ($state eq "tags") {
                   2308:       if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
                   2309:         push (@filetags, $1);
                   2310:         $symrev{$1}  = $2;
                   2311:         $alltags{$1} = 1;
                   2312:         next;
                   2313:       } elsif (/^\S/) {
                   2314:
                   2315:         if (defined($tag)) {
                   2316:           if (defined($symrev{$tag}) || $tag eq "HEAD") {
                   2317:             $revwanted    = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
                   2318:             ($branch      = $revwanted) =~ s/\b0\.//;
                   2319:             ($branchpoint = $branch)    =~ s/\.?\d+$//;
                   2320:             $revwanted    = '' if ($revwanted ne $branch);
                   2321:           } elsif ($tag ne "HEAD") {
                   2322:             $state = "skip";
                   2323:             next;
                   2324:           }
                   2325:         }
                   2326:
                   2327:         foreach my $tagfound (@filetags) {
                   2328:           $tags{$tagfound} = 1;
                   2329:         }
                   2330:         $state = "head";
                   2331:         goto again;
                   2332:       }
                   2333:     }
                   2334:
                   2335:     if ($state eq "log") {
                   2336:       if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
                   2337:
                   2338:         # End of a log entry.
                   2339:         my $revbranch = $rev;
                   2340:         $revbranch =~ s/\.\d+$//;
                   2341:
                   2342:         if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
                   2343:             || !defined($tag))
                   2344:         {
                   2345:           $revwanted = $rev;
                   2346:         }
                   2347:
                   2348:         if ($revwanted ne ''
                   2349:             ? $rev eq $revwanted
                   2350:             : $branchpoint ne ''
                   2351:               ? $rev eq $branchpoint
                   2352:               : 0
                   2353:             && ($rev eq $head))
                   2354:         {    # Don't think head is needed here..
3.152     scop     2355:           my @finfo = ($rev, $date, $log, $author, $filename, $keywordsubst);
                   2356:           (my $name = $filename) =~ s%/.*%%;
3.120     scop     2357:           $fileinfo{$name} = [@finfo];
                   2358:           $state = "done" if ($rev eq $revwanted);
                   2359:         }
                   2360:         $rev  = '';
                   2361:         $date = '';
                   2362:         $log  = '';
                   2363:       } elsif ($date eq ''
                   2364:                && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|)
                   2365:       {
3.172     scop     2366:         my $yr    = $1;
                   2367:         $yr      -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
                   2368:         $date     = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2369:         ($author) = /author: ([^;]+)/;
3.172     scop     2370:         $state    = 'log';
                   2371:         $log      = '';
3.120     scop     2372:         next;
                   2373:       } elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
                   2374:         $rev = $1;    # .*$ eats up the locker(lockers?) info, if any
                   2375:         next;
                   2376:       } else {
                   2377:         $log .= $_;
                   2378:       }
                   2379:     }
                   2380:
                   2381:     if (/$LOG_FILESEPARATOR/o) {
                   2382:       $state = "start";
                   2383:       next;
                   2384:     }
                   2385:   }
                   2386:
3.139     scop     2387:   my $linesread = $. || 0;
                   2388:   close($fh);
                   2389:
                   2390:   if ($linesread == 0) {
3.137     scop     2391:     fatal('500 Internal Error',
                   2392:           'Failed to spawn GNU rlog on <em>"%s"</em>.<br><br>Did you set the <b><code>$command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
3.150     scop     2393:           htmlquote(join(', ', @files)), $command_path);
3.120     scop     2394:   }
3.150     scop     2395:
                   2396:   return @unreadable;
3.120     scop     2397: }
                   2398:
                   2399: sub readLog($;$)
                   2400: {
                   2401:   my ($fullname, $revision) = @_;
                   2402:   my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   2403:   my $fh = do { local (*FH); };
                   2404:
3.144     scop     2405:   $revision = defined($revision) ? "-r$revision" : '';
3.120     scop     2406:
                   2407:   undef %symrev;
                   2408:   undef %revsym;
                   2409:   undef @allrevisions;
                   2410:   undef %date;
                   2411:   undef %author;
                   2412:   undef %state;
                   2413:   undef %difflines;
                   2414:   undef %log;
3.152     scop     2415:   $keywordsubstitution = '';
3.120     scop     2416:
                   2417:   if (!open($fh, "-|")) {    # child
                   2418:     if ($revision ne '') {
                   2419:       openOutputFilter();
                   2420:       exec($CMD{rlog}, $revision, $fullname) or exit -1;
                   2421:     } else {
                   2422:       openOutputFilter();
                   2423:       exec($CMD{rlog}, $fullname) or exit -1;
                   2424:     }
                   2425:   }
                   2426:
                   2427:   while (<$fh>) {
                   2428:     if ($symnames) {
                   2429:       if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   2430:         $symrev{$1} = $2;
3.152     scop     2431:         next;
3.120     scop     2432:       } else {
                   2433:         $symnames = 0;
                   2434:       }
3.152     scop     2435:     }
                   2436:     if (/^head:\s+([\d\.]+)/) {
3.120     scop     2437:       $head = $1;
                   2438:     } elsif (/^branch:\s+([\d\.]+)/) {
                   2439:       $curbranch = $1;
                   2440:     } elsif (/^symbolic names/) {
                   2441:       $symnames = 1;
3.152     scop     2442:     } elsif (/^keyword substitution: (.+)$/) {
                   2443:       $keywordsubstitution = $1;
3.120     scop     2444:     } elsif (/^-----/) {
                   2445:       last;
                   2446:     }
                   2447:   }
                   2448:   ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
                   2449:
                   2450:   # each log entry is of the form:
                   2451:   # ----------------------------
                   2452:   # revision 3.7.1.1
                   2453:   # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   2454:   # log info
                   2455:   # ----------------------------
                   2456:
                   2457:   # For a locked revision, the first line after the separator
                   2458:   # becomes smth like
3.149     scop     2459:   # revision 9.19       locked by: vassilii;
3.120     scop     2460:
                   2461:   logentry:
                   2462:
                   2463:   while (!/$LOG_FILESEPARATOR/o) {
                   2464:     $_ = <$fh>;
                   2465:     last logentry if (!defined($_));    # EOF
                   2466:     if (/^revision (\d+(?:\.\d+)+)/) {
                   2467:       $rev = $1;
                   2468:       unshift (@allrevisions, $rev);
                   2469:     } elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
                   2470:       next logentry;
                   2471:     } else {
                   2472:
                   2473:       # The rlog output is syntactically ambiguous.  We must
                   2474:       # have guessed wrong about where the end of the last log
                   2475:       # message was.
                   2476:       # Since this is likely to happen when people put rlog output
                   2477:       # in their commit messages, don't even bother keeping
                   2478:       # these lines since we don't know what revision they go with
                   2479:       # any more.
                   2480:       next logentry;
                   2481:     }
                   2482:     $_ = <$fh>;
                   2483:     if (
                   2484:       m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
                   2485:       )
                   2486:     {
3.172     scop     2487:       my $yr           = $1;
                   2488:       $yr             -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
                   2489:       $date{$rev}      = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2490:       $author{$rev}    = $7;
                   2491:       $state{$rev}     = $8;
                   2492:       $difflines{$rev} = $10;
                   2493:     } else {
                   2494:       fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
                   2495:     }
                   2496:
                   2497:   line:
                   2498:     while (<$fh>) {
                   2499:       next line if (/^branches:\s/);
                   2500:       last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
                   2501:       $log{$rev} .= $_;
                   2502:     }
                   2503:   }
                   2504:   close($fh);
                   2505:
                   2506:   @revorder = reverse sort { revcmp($a, $b) } @allrevisions;
                   2507:
                   2508:   #
                   2509:   # HEAD is an artificial tag which is simply the highest tag number on the main
                   2510:   # branch, unless there is a branch tag in the RCS file in which case it's the
                   2511:   # highest revision on that branch.  Find it by looking through @revorder; it
                   2512:   # is the first commit listed on the appropriate branch.
                   2513:   # This is not neccesary the same revision as marked as head in the RCS file.
                   2514:   my $headrev = $curbranch || "1";
                   2515:   ($symrev{"MAIN"} = $headrev) =~ s/(\d+)$/0.$1/;
                   2516:
                   2517:   foreach $rev (@revorder) {
                   2518:     if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   2519:       $symrev{"HEAD"} = $rev;
                   2520:       last;
                   2521:     }
                   2522:   }
                   2523:   ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   2524:     if (!defined($symrev{"HEAD"}));
                   2525:
                   2526:   #
                   2527:   # Now that we know all of the revision numbers, we can associate
                   2528:   # absolute revision numbers with all of the symbolic names, and
                   2529:   # pass them to the form so that the same association doesn't have
                   2530:   # to be built then.
                   2531:   #
                   2532:   undef @branchnames;
                   2533:   undef %branchpoint;
                   2534:   undef $sel;
                   2535:
                   2536:   foreach (reverse sort keys %symrev) {
                   2537:     $rev = $symrev{$_};
                   2538:     if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
                   2539:       push (@branchnames, $_);
                   2540:
                   2541:       #
                   2542:       # A revision number of A.B.0.D really translates into
                   2543:       # "the highest current revision on branch A.B.D".
                   2544:       #
                   2545:       # If there is no branch A.B.D, then it translates into
                   2546:       # the head A.B .
                   2547:       #
                   2548:       # This reasoning also applies to the main branch A.B,
                   2549:       # with the branch number 0.A, with the exception that
                   2550:       # it has no head to translate to if there is nothing on
                   2551:       # the branch, but I guess this can never happen?
                   2552:       #
                   2553:       # (the code below gracefully forgets about the branch
                   2554:       # if it should happen)
                   2555:       #
                   2556:       $head = defined($2) ? $2 : "";
                   2557:       $branch = $3;
                   2558:       $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   2559:       my $regex;
                   2560:       $regex = quotemeta $branchrev;
                   2561:       $rev   = $head;
                   2562:
                   2563:       foreach my $r (@revorder) {
                   2564:         if ($r =~ /^${regex}\b/) {
                   2565:           $rev = $branchrev;
                   2566:           last;
                   2567:         }
                   2568:       }
                   2569:       next if ($rev eq "");
                   2570:
                   2571:       if ($rev ne $head && $head ne "") {
3.131     scop     2572:         $branchpoint{$head} .= ', ' if ($branchpoint{$head});
3.120     scop     2573:         $branchpoint{$head} .= $_;
                   2574:       }
                   2575:     }
                   2576:     $revsym{$rev} .= ", " if ($revsym{$rev});
                   2577:     $revsym{$rev} .= $_;
3.136     scop     2578:     $sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
                   2579:                     htmlquote($rev), (htmlquote($_)) x 2);
3.120     scop     2580:   }
                   2581:
                   2582:   my ($onlyonbranch, $onlybranchpoint);
                   2583:   if ($onlyonbranch = $input{'only_with_tag'}) {
                   2584:     $onlyonbranch = $symrev{$onlyonbranch};
                   2585:     if ($onlyonbranch =~ s/\b0\.//) {
                   2586:       ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   2587:     } else {
                   2588:       $onlybranchpoint = $onlyonbranch;
                   2589:     }
                   2590:
                   2591:     if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   2592:       fatal("404 Tag not found", 'Tag %s not defined',
3.131     scop     2593:             $input{'only_with_tag'});
3.120     scop     2594:     }
                   2595:   }
                   2596:
                   2597:   undef @revisions;
                   2598:
                   2599:   foreach (@allrevisions) {
                   2600:     ($br  = $_)  =~ s/\.\d+$//;
                   2601:     ($brp = $br) =~ s/\.\d+$//;
                   2602:     next if ($onlyonbranch
                   2603:              && $br ne $onlyonbranch
                   2604:              && $_  ne $onlybranchpoint);
                   2605:     unshift (@revisions, $_);
                   2606:   }
                   2607:
                   2608:   if ($logsort eq "date") {
                   2609:
                   2610:     # Sort the revisions in commit order an secondary sort on revision
                   2611:     # (secondary sort needed for imported sources, or the first main
                   2612:     # revision gets before the same revision on the 1.1.1 branch)
                   2613:     @revdisplayorder =
                   2614:       sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) } @revisions;
                   2615:   } elsif ($logsort eq "rev") {
                   2616:
                   2617:     # Sort the revisions in revision order, highest first
                   2618:     @revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
                   2619:   } else {
                   2620:
                   2621:     # No sorting. Present in the same order as rlog / cvs log
                   2622:     @revdisplayorder = @revisions;
                   2623:   }
                   2624:
                   2625: }
                   2626:
                   2627: sub printDiffLinks($$)
                   2628: {
                   2629:   my ($text, $url) = @_;
                   2630:   my @extra;
                   2631:
                   2632:   local $_;
                   2633:   for ($DIFFTYPES{$defaultDiffType}{'colored'} ? qw(u) : qw(h)) {
                   2634:     my $f = $_ eq $defaultDiffType ? '' : $_;
                   2635:
                   2636:     push @extra, &link(lc $DIFFTYPES{$_}{'descr'}, "$url&f=$f");
                   2637:   }
                   2638:
                   2639:   print &link($text, $url), ' (', join (', ', @extra), ')';
                   2640: }
                   2641:
                   2642: sub printLog($;$)
                   2643: {
                   2644:   my ($link, $br, $brp);
                   2645:   ($_, $link) = @_;
                   2646:   ($br  = $_)  =~ s/\.\d+$//;
                   2647:   ($brp = $br) =~ s/\.?\d+$//;
3.131     scop     2648:   my $prev;
3.120     scop     2649:
                   2650:   $link = 1 if (!defined($link));
3.131     scop     2651:   my $isDead = ($state{$_} eq 'dead');
                   2652:   my $isSelected = (defined($input{'r1'}) && $input{'r1'} eq $_);
3.120     scop     2653:
3.131     scop     2654:   print "<div class=\"diff-selected\">\n" if $isSelected;
3.120     scop     2655:   print "<p>\n";
3.131     scop     2656:
3.120     scop     2657:   if ($link && !$isDead) {
3.156     scop     2658:     (my $filename = $where) =~ s/^.*\///;
                   2659:     my $fileurl   = urlencode($filename);
                   2660:     my $mimetype  = getMimeType($filename);
                   2661:     my $viewable  = viewable($mimetype);
                   2662:
3.120     scop     2663:     print "<a name=\"rev$_\"></a>";
                   2664:
                   2665:     if (defined($revsym{$_})) {
                   2666:       foreach my $sym (split (", ", $revsym{$_})) {
3.136     scop     2667:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2668:       }
                   2669:     }
                   2670:
                   2671:     if (defined($revsym{$br})
                   2672:         && $revsym{$br}
                   2673:         && !defined($nameprinted{$br}))
                   2674:     {
                   2675:       foreach my $sym (split (", ", $revsym{$br})) {
3.136     scop     2676:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2677:       }
                   2678:       $nameprinted{$br} = 1;
                   2679:     }
                   2680:     print "\n Revision ";
                   2681:     &download_link($fileurl, $_, $_,
3.156     scop     2682:                    $viewable ? 'text/x-cvsweb-markup' : undef);
3.120     scop     2683:
3.161     scop     2684:     print ' / (';
                   2685:
3.156     scop     2686:     if ($viewable) {
3.120     scop     2687:       &download_link($fileurl, $_, "download", $mimetype);
                   2688:     }
                   2689:
3.156     scop     2690:     if ($mimetype ne 'text/plain') {
3.161     scop     2691:       print ' / ' if $viewable;
3.120     scop     2692:       &download_link($fileurl, $_, "as text", "text/plain");
                   2693:     }
                   2694:
3.156     scop     2695:     if (!$viewable) {
3.161     scop     2696:       print ' / ' if ($mimetype ne 'text/plain');
3.120     scop     2697:       &download_link($fileurl, $_, "view", "text/x-cvsweb-markup");
                   2698:     }
3.161     scop     2699:
                   2700:     print ')';
3.120     scop     2701:
                   2702:     if ($allow_annotate) {
                   2703:       print " - ";
                   2704:       print &link('annotate',
                   2705:                   sprintf('%s/%s?annotate=%s%s',
                   2706:                           $scriptname, urlencode($where), $_, $barequery));
                   2707:     }
                   2708:
                   2709:     # Plus a select link if enabled, and this version isn't selected
                   2710:     if ($allow_version_select) {
3.131     scop     2711:       print ' - ';
                   2712:       if ($isSelected) {
                   2713:         print '<b>[selected]</b>';
3.120     scop     2714:       } else {
3.159     scop     2715:         print &link('select&nbsp;for&nbsp;diffs',
3.131     scop     2716:                     sprintf('%s?r1=%s%s#rev%s',
                   2717:                             $scriptwhere, $_, $barequery, $_));
3.120     scop     2718:       }
                   2719:     }
                   2720:   } else {
                   2721:     print "Revision <b>$_</b>";
                   2722:   }
                   2723:
                   2724:   if (/^1\.1\.1\.\d+$/) {
                   2725:     print " <i>(vendor branch)</i>";
                   2726:   }
                   2727:   if (defined @mytz) {
                   2728:     my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2729:     print ", <i>", scalar localtime($date{$_}), " $est</i> (";
                   2730:   } else {
                   2731:     print ", <i>", scalar gmtime($date{$_}), " UTC</i> (";
                   2732:   }
3.136     scop     2733:   print readableTime(time() - $date{$_}, 1), ' ago)';
                   2734:   print ' by <i>', htmlquote($author{$_}), "</i>\n";
                   2735:
                   2736:   if ($revsym{$br}) {
                   2737:     printf "<br>Branch: <b>%s</b>\n",
                   2738:       $link ? link_tags($revsym{$br}) : htmlquote($revsym{$br});
                   2739:   }
                   2740:   if ($revsym{$_}) {
                   2741:     printf "<br>CVS Tags: <b>%s</b>\n",
                   2742:       $link ? link_tags($revsym{$_}) : htmlquote($revsym{$_});
                   2743:   }
                   2744:   if ($branchpoint{$_}) {
                   2745:     printf "<br>Branch point for: <b>%s</b>\n",
                   2746:       $link ? link_tags($branchpoint{$_}) : htmlquote($branchpoint{$_});
                   2747:   }
3.120     scop     2748:
                   2749:   # Find the previous revision
                   2750:   my @prevrev = split (/\./, $_);
                   2751:   do {
                   2752:     if (--$prevrev[$#prevrev] <= 0) {
                   2753:
                   2754:       # If it was X.Y.Z.1, just make it X.Y
                   2755:       pop (@prevrev);
                   2756:       pop (@prevrev);
                   2757:     }
                   2758:     $prev = join (".", @prevrev);
                   2759:   } until (defined($date{$prev}) || $prev eq "");
                   2760:
                   2761:   if ($prev ne "") {
                   2762:     if ($difflines{$_}) {
                   2763:       print "<br>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2764:     }
                   2765:   }
                   2766:
                   2767:   if ($isDead) {
                   2768:     print "<br><b><i>FILE REMOVED</i></b>\n";
                   2769:   } elsif ($link) {
                   2770:     my %diffrev = ();
                   2771:     $diffrev{$_} = 1;
                   2772:     $diffrev{""} = 1;
                   2773:     print '<br>';
                   2774:     my $diff = 'Diff';
                   2775:
                   2776:     #
                   2777:     # Offer diff to previous revision
                   2778:     if ($prev) {
                   2779:       $diffrev{$prev} = 1;
                   2780:
                   2781:       my $url =
                   2782:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $prev, $_, $barequery);
                   2783:
                   2784:       print $diff, " to previous ";
                   2785:       $diff = '';
                   2786:       printDiffLinks($prev, $url);
                   2787:     }
                   2788:
                   2789:     #
                   2790:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2791:     # offer a diff with the branch point.
                   2792:     if ($revsym{$brp}
                   2793:       && !/^1\.1\.1\.\d+$/
                   2794:       && !defined($diffrev{$brp}))
                   2795:     {
                   2796:       my $url =
                   2797:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $brp, $_, $barequery);
                   2798:
                   2799:       print $diff, " to branchpoint ";
                   2800:       $diff = '';
                   2801:       printDiffLinks($brp, $url);
                   2802:     }
                   2803:
                   2804:     #
                   2805:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2806:     # offer to diff with the next revision of the higher branch.
                   2807:     # (e.g. change gets committed and then brought
                   2808:     # over to -stable)
                   2809:     if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2810:       my ($i, $nextmain);
                   2811:
                   2812:       for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
                   2813:       }
                   2814:       my @tmp2 = split (/\./, $_);
                   2815:       for ($nextmain = ""; $i > 0; $i--) {
                   2816:         my $next = $revorder[$i - 1];
                   2817:         my @tmp1 = split (/\./, $next);
                   2818:
                   2819:         if (@tmp1 < @tmp2) {
                   2820:           $nextmain = $next;
                   2821:           last;
                   2822:         }
                   2823:
                   2824:         # Only the highest version on a branch should have
                   2825:         # a diff for the "next main".
                   2826:         last
                   2827:           if (@tmp1 - 1 <= @tmp2
                   2828:           && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
                   2829:           join (".", @tmp2[0 .. $#tmp1 - 1]));
                   2830:       }
                   2831:
                   2832:       if (!defined($diffrev{$nextmain})) {
                   2833:         $diffrev{$nextmain} = 1;
                   2834:
                   2835:         my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2836:           $scriptwhere, $nextmain, $_, $barequery);
                   2837:
                   2838:         print $diff, " next main ";
                   2839:         $diff = '';
                   2840:         printDiffLinks($nextmain, $url);
                   2841:       }
                   2842:     }
                   2843:
                   2844:     # Plus if user has selected only r1, then present a link
                   2845:     # to make a diff to that revision
                   2846:     if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2847:       $diffrev{$input{"r1"}} = 1;
                   2848:
                   2849:       my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2850:         $scriptwhere, $input{'r1'}, $_, $barequery);
                   2851:
                   2852:       print $diff, " to selected ";
                   2853:       $diff = '';
                   2854:       printDiffLinks($input{'r1'}, $url);
                   2855:     }
                   2856:
                   2857:   }
3.173     scop     2858:   print "\n</p>\n<pre class=\"log\">\n";
3.120     scop     2859:   print &htmlify($log{$_}, $allow_log_extra);
                   2860:   print "</pre>\n";
3.131     scop     2861:   print "</div>\n" if $isSelected;
3.120     scop     2862: }
                   2863:
3.132     scop     2864: #
                   2865: # Generates the HTML view for CvsGraph.
                   2866: #
3.170     scop     2867: sub doGraphView()
3.132     scop     2868: {
                   2869:   (my $pathname = $where) =~ s|[^/]*$||;
                   2870:   (my $filename = $where) =~ s|^.*/||;
                   2871:
3.170     scop     2872:   navigateHeader($scriptwhere, $pathname, $filename, undef, 'graph');
3.132     scop     2873:
3.146     scop     2874:   my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3.132     scop     2875:   my $mapname = 'CvsGraphMap';
3.156     scop     2876:   my $ctype = viewable(getMimeType($filename)) ?
                   2877:     '&amp;content-type=text/x-cvsweb-markup' : '';
3.132     scop     2878:
3.170     scop     2879:   printf(<<EOF, $title, $mapname, $cvstree, $title);
3.146     scop     2880: <h3 style="text-align: center">%s</h3>
3.170     scop     2881: <div align="center"><img border="0" usemap="#%s" src="?cvsroot=%s&amp;graph=1&amp;makeimage=1" alt="%s"></div>
3.146     scop     2882: EOF
3.132     scop     2883:
3.135     scop     2884:   my @graph_cmd =
                   2885:     ($CMD{cvsgraph},
                   2886:      '-r', $cvsroot,
                   2887:      '-i',
                   2888:      '-M', $mapname,
3.146     scop     2889:      '-x', 4,
                   2890:      "-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$barequery\\\"\"",
                   2891:      "-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery$ctype\\\"\"",
                   2892:      "-Omap_diff_href=\"href=\\\"%(%F%).diff" .
                   2893:      "?r1=%(%P%)&amp;r2=%(%R%)$barequery\\\"\"",
3.135     scop     2894:      );
3.132     scop     2895:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3.174   ! scop     2896:   push(@graph_cmd, catfile($pathname, $filename . ',v'));
3.132     scop     2897:
3.174   ! scop     2898:   local *CVSGRAPH_OUT;
        !          2899:   local $^W = 0; # IPC::Run is noisy w/perl 5.8.  Also prevents weird hangs.
        !          2900:   my ($h, $err) =
        !          2901:     startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT, timeout(30));
        !          2902:   fatal('500 Internal Error', $err) unless $h;
        !          2903:   {
        !          2904:     local $/ = undef;
        !          2905:     print <CVSGRAPH_OUT>;
3.132     scop     2906:   }
3.174   ! scop     2907:   finish($h);
3.132     scop     2908:
                   2909:   html_footer();
                   2910: }
                   2911:
                   2912: #
                   2913: # Generates a graph using CvsGraph.
                   2914: #
3.170     scop     2915: sub doGraph()
3.132     scop     2916: {
                   2917:   (my $pathname = $where) =~ s|[^/]*$||;
                   2918:   (my $filename = $where) =~ s|^.*/||;
                   2919:
                   2920:   http_header('image/png');
                   2921:
                   2922:   my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot);
                   2923:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3.174   ! scop     2924:   push(@graph_cmd, catfile($pathname, $filename . ',v'));
3.132     scop     2925:
3.174   ! scop     2926:   local *CVSGRAPH_OUT;
        !          2927:   local $^W = 0; # IPC::Run is noisy w/perl 5.8.  Also prevents weird hangs.
        !          2928:   my ($h, $err) =
        !          2929:     startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT, timeout(30));
        !          2930:   fatal('500 Internal Error', $err) unless $h;
3.132     scop     2931:   {
                   2932:     local $/ = undef;
                   2933:     binmode(\*STDOUT);
3.174   ! scop     2934:     print <CVSGRAPH_OUT>;
3.132     scop     2935:   }
3.174   ! scop     2936:   finish($h);
3.132     scop     2937: }
                   2938:
                   2939:
3.120     scop     2940: sub doLog($)
                   2941: {
                   2942:   my ($fullname) = @_;
                   2943:
                   2944:   readLog($fullname);
                   2945:
                   2946:   html_header("CVS log for $where");
3.144     scop     2947:
                   2948:   (my $upwhere  = $where) =~ s|(Attic/)?[^/]+$||;
                   2949:   (my $filename = $where) =~ s|^.*/||;
                   2950:   my $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2951:
3.120     scop     2952:   print "<p>\n ";
                   2953:   print &link($backicon, "$backurl#$filename"), " <b>Up to ",
                   2954:     &clickablePath($upwhere, 1), "</b>\n</p>\n";
                   2955:   print "<p>\n ";
                   2956:   print &link('Request diff between arbitrary revisions', '#diff');
3.132     scop     2957:   if ($allow_cvsgraph) {
3.170     scop     2958:     print ' / ', &graph_link('', 'Display revisions graphically');
3.132     scop     2959:   }
3.120     scop     2960:   print "\n</p>\n<hr noshade>\n";
                   2961:
                   2962:   print "<p>\n";
3.152     scop     2963:
                   2964:   my $explain = $keywordsubstitution =~ /b/ ?
                   2965:     ' (i.e.: CVS considers this a binary file)' : '';
                   2966:   print "Keyword substitution: $keywordsubstitution$explain<br>\n";
3.144     scop     2967:   print $curbranch
                   2968:     ? ("Default branch: ", ($revsym{$curbranch} || $curbranch))
                   2969:     : "No default branch";
3.120     scop     2970:   print "<br>\n";
                   2971:
3.153     scop     2972:   print 'Current tag: ', htmlquote($input{only_with_tag}), "<br>\n"
                   2973:     if $input{only_with_tag};
3.120     scop     2974:   print "</p>\n";
                   2975:
                   2976:   undef %nameprinted;
                   2977:
                   2978:   for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2979:     print "<hr size=\"1\" noshade>\n";
                   2980:     printLog($revdisplayorder[$i]);
                   2981:   }
                   2982:
3.144     scop     2983:   printf(<<EOF, $scriptwhere);
                   2984: <hr noshade>
                   2985: <p>
                   2986:  <a name="diff">
                   2987:   This form allows you to request diff's between any two revisions of a file.
                   2988:   You may select a symbolic revision name using the selection box or you may
                   2989:   type in a numeric name using the type-in text box.
                   2990:  </a>
                   2991: </p>
                   2992: <form method="get" action="%s.diff" name="diff_select">
                   2993: EOF
3.120     scop     2994:
                   2995:   foreach (@stickyvars) {
3.154     scop     2996:     printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   2997:            $_, htmlquote($input{$_}))
3.120     scop     2998:       if (defined($input{$_})
                   2999:           && ((!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_})
                   3000:               && $input{$_} ne ""));
                   3001:   }
3.144     scop     3002:
                   3003:   print <<EOF;
                   3004: <table style="border: none">
                   3005: <tr>
                   3006: <td align="right">
                   3007: <label for="r1" accesskey="1">Diffs between </label>
                   3008: <select id="r1" name="r1">
                   3009: <option value="text" selected>Use Text Field</option>
                   3010: EOF
                   3011:   print $sel, "</select>\n";
                   3012:
                   3013:   my $diffrev = defined($input{r1}) ?
                   3014:     $input{r1} : $revdisplayorder[$#revdisplayorder];
                   3015:
                   3016:   printf(<<EOF, $inputTextSize, $diffrev);
3.147     scop     3017: <input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0">
3.144     scop     3018: </td>
                   3019: <td><br></td>
                   3020: </tr><tr>
                   3021: <td align="right">
                   3022: <label for="r2" accesskey="2">and </label>
                   3023: <select id="r2" name="r2">
                   3024: <option value="text" selected>Use Text Field</option>
                   3025: EOF
                   3026:   print $sel, "</select>\n";
                   3027:
                   3028:   $diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
                   3029:
                   3030:   printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
                   3031: <input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0">
                   3032: </td>
                   3033: <td><input type="submit" value="  Get Diffs  " accesskey="G"></td>
                   3034: </tr>
                   3035: </table>
                   3036: </form>
                   3037: <hr noshade>
                   3038: <form method="get" action="%s">
                   3039: <table style="border: none">
                   3040: <tr>
                   3041:  <td align="right">
                   3042:   <label for="f" accesskey="D">Preferred Diff type:</label>
                   3043:  </td><td>
                   3044: EOF
                   3045:
3.120     scop     3046:   printDiffSelect($use_java_script);
3.144     scop     3047:
                   3048:   print <<EOF;
                   3049:  </td>
                   3050:  <td></td>
                   3051: </tr>
                   3052: EOF
3.120     scop     3053:
                   3054:   if (@branchnames) {
3.144     scop     3055:
                   3056:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3057: <tr>
                   3058: <td align="right">
                   3059: <label for="only_with_tag" accesskey="B">View only Branch:</label>
                   3060: </td><td>
                   3061: <a name="branch"></a>
                   3062: <select id="only_with_tag" name="only_with_tag"%s>
                   3063: EOF
                   3064:     print '<option value=""';
                   3065:     print ' selected'
                   3066:       if (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq '');
3.120     scop     3067:     print ">Show all branches</option>\n";
                   3068:
                   3069:     foreach (reverse sort @branchnames) {
3.136     scop     3070:       my $selected =
                   3071:         (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq $_);
                   3072:       printf("<option%s>%s</option>\n",
                   3073:              $selected ? ' selected' : '',
                   3074:              htmlquote($_));
3.120     scop     3075:     }
3.144     scop     3076:     print <<EOF
                   3077: </select>
                   3078: </td>
                   3079: <td></td>
                   3080: </tr>
                   3081: EOF
3.120     scop     3082:   }
                   3083:
3.144     scop     3084:   print <<EOF;
                   3085:  <tr>
                   3086:   <td align="right">
                   3087:    <a name="logsort"></a>
                   3088:    <label for="logsort" accesskey="L">Sort log by:</label>
                   3089:   </td><td>
                   3090: EOF
3.120     scop     3091:   printLogSortSelect($use_java_script);
3.144     scop     3092:   print <<EOF;
                   3093:   </td>
                   3094:   <td><input type="submit" value="  Set  " accesskey="S"></td>
                   3095:  </tr>
                   3096: </table>
                   3097: EOF
3.154     scop     3098:   foreach (@stickyvars) {
                   3099:     next if ($_ eq "f");
                   3100:     next if ($_ eq "only_with_tag");
                   3101:     next if ($_ eq "logsort");
                   3102:     printf("<input type=\"hidden\" name=\"$_\" value=\"%s\">\n",
                   3103:            htmlquote($input{$_}))
                   3104:       if (defined($input{$_})
                   3105:           && (!defined($DEFAULTVALUE{$_})
                   3106:               || $input{$_} ne $DEFAULTVALUE{$_})
                   3107:           && $input{$_} ne "");
                   3108:   }
                   3109:   print "</form>\n";
3.120     scop     3110:   html_footer();
                   3111: }
                   3112:
                   3113: sub flush_diff_rows($$$$)
                   3114: {
                   3115:   my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
                   3116:
                   3117:   if (!defined($state)) {
                   3118:     return;
                   3119:   }
                   3120:
                   3121:   if ($state eq "PreChangeRemove") {    # we just got remove-lines before
3.133     scop     3122:     for (my $j = 0; $j < $leftRow; $j++) {
3.144     scop     3123:       printf(<<EOF, scalar(@$leftColRef[$j]));
                   3124: <tr>
                   3125:  <td class="diff-removed">&nbsp;%s</td>
                   3126:  <td class="diff-empty">&nbsp;</td>
                   3127: </tr>
                   3128: EOF
3.120     scop     3129:     }
                   3130:   } elsif ($state eq "PreChange") {     # state eq "PreChange"
                   3131:                                         # we got removes with subsequent adds
                   3132:
3.133     scop     3133:     for (my $j = 0; $j < $leftRow || $j < $rightRow; $j++) {  # dump both cols
3.120     scop     3134:       print "<tr>\n";
                   3135:       if ($j < $leftRow) {
                   3136:         print "<td class=\"diff-changed\">&nbsp;@$leftColRef[$j]</td>";
                   3137:       } else {
                   3138:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3139:       }
                   3140:       print "\n";
                   3141:
                   3142:       if ($j < $rightRow) {
                   3143:         print "<td class=\"diff-changed\">&nbsp;@$rightColRef[$j]</td>";
                   3144:       } else {
                   3145:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3146:       }
                   3147:       print "\n</tr>\n";
                   3148:     }
                   3149:   }
3.1       knu      3150: }
                   3151:
                   3152: ##
                   3153: # Function to generate Human readable diff-files
                   3154: # human_readable_diff(String revision_to_return_to);
                   3155: ##
3.144     scop     3156: sub human_readable_diff($$)
3.120     scop     3157: {
                   3158:   my ($fh, $rev) = @_;
3.144     scop     3159:
3.120     scop     3160:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   3161:
3.169     scop     3162:   (my $where_nd       = $where)       =~ s|\.diff$||;
                   3163:   (my $filename       = $where_nd)    =~ s|^.*/||;
                   3164:   (my $pathname       = $where_nd)    =~ s|(Attic/)?[^/]*$||;
                   3165:   (my $scriptwhere_nd = $scriptwhere) =~ s|\.diff$||;
3.120     scop     3166:
3.133     scop     3167:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3.120     scop     3168:
                   3169:   # Read header to pick up read revision and date, if possible
                   3170:   while (<$fh>) {
                   3171:     ($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   3172:     ($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   3173:     last if (/^\+\+\+ /);
                   3174:   }
                   3175:
                   3176:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   3177:     $rev1  = $r1r;
                   3178:     $date1 = $r1d;
                   3179:   }
                   3180:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   3181:     $rev2  = $r2r;
                   3182:     $date2 = $r2d;
                   3183:   }
                   3184:
3.144     scop     3185:   # Using <table style=\"border: none\" here breaks NS 4.x badly...
                   3186:   printf(<<EOF, $where_nd, $rev1, $rev2, $rev1);
                   3187: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
3.147     scop     3188: <table border="0" cellspacing="0" cellpadding="0" width="100%%">
3.144     scop     3189: <tr style="background-color: #ffffff">
3.147     scop     3190: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3191: EOF
                   3192:   print ', ', $date1 if defined($date1);
                   3193:   print "<br>Tag: $sym1\n" if $sym1;
                   3194:   printf(<<EOF, $rev2);
                   3195: </th>
3.147     scop     3196: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3197: EOF
                   3198:   print ', ', $date2 if defined($date2);
                   3199:   print "<br>Tag: $sym2\n" if $sym2;
3.120     scop     3200:   print "</th>\n";
                   3201:
                   3202:   # Process diff text
                   3203:   # prefetch several lines
                   3204:   my @buf = head($fh);
3.144     scop     3205:   my %d = scan_directives(@buf);
3.120     scop     3206:
3.144     scop     3207:   my $leftRow  = 0;
                   3208:   my $rightRow = 0;
                   3209:   my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
                   3210:   my ($diffcode, $rest);
3.120     scop     3211:
                   3212:   while (@buf || !eof($fh)) {
                   3213:     $difftxt = @buf ? shift @buf : <$fh>;
                   3214:
                   3215:     if ($difftxt =~ /^@@/) {
                   3216:       ($oldline, $newline, $funname) =
                   3217:         $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   3218:       $funname = htmlquote($funname);
                   3219:       $funname =~ s/\s/&nbsp;/go;
3.144     scop     3220:
                   3221:       printf(<<EOF, $oldline, $funname, $newline, $funname);
                   3222: <tr class="diff-heading">
3.147     scop     3223: <td width="50%%">
                   3224:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3225:   <tr>
                   3226:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3227:   </tr>
                   3228:  </table>
3.147     scop     3229: </td><td width="50%%">
                   3230:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3231:   <tr>
                   3232:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3233:   </tr>
                   3234:  </table>
                   3235: </td>
                   3236: EOF
                   3237:
3.120     scop     3238:       $state    = "dump";
                   3239:       $leftRow  = 0;
                   3240:       $rightRow = 0;
                   3241:     } else {
                   3242:       ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
                   3243:       $_ = spacedHtmlText($rest, $d{'tabstop'});
                   3244:
                   3245:       #########
                   3246:       # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   3247:       # in order to get some nice 'ediff'-mode output
                   3248:       # states:
                   3249:       #  "dump"             - just dump the value
                   3250:       #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   3251:       #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   3252:       ##########
                   3253:
                   3254:       if ($diffcode eq '+') {
                   3255:         if ($state eq "dump")
                   3256:         {    # 'change' never begins with '+': just dump out value
3.144     scop     3257:           printf(<<EOF, $_);
                   3258: <tr>
                   3259:  <td class="diff-empty">&nbsp;</td>
                   3260:  <td class="diff-added">&nbsp;%s</td>
                   3261: </tr>
                   3262: EOF
3.120     scop     3263:         } else {    # we got minus before
                   3264:           $state = "PreChange";
                   3265:           $rightCol[$rightRow++] = $_;
                   3266:         }
                   3267:       } elsif ($diffcode eq '-') {
                   3268:         $state = "PreChangeRemove";
                   3269:         $leftCol[$leftRow++] = $_;
                   3270:       } else {    # empty diffcode
                   3271:         flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3.147     scop     3272:         printf(<<EOF, $_, $_);
3.144     scop     3273: <tr>
                   3274:  <td class="diff-same">&nbsp;%s</td>
                   3275:  <td class="diff-same">&nbsp;%s</td>
                   3276: </tr>
                   3277: EOF
3.120     scop     3278:         $state    = "dump";
                   3279:         $leftRow  = 0;
                   3280:         $rightRow = 0;
                   3281:       }
                   3282:     }
                   3283:   }
                   3284:   close($fh);
                   3285:
                   3286:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   3287:
                   3288:   # state is empty if we didn't have any change
                   3289:   if (!$state) {
3.144     scop     3290:     print <<EOF;
                   3291: <tr>
                   3292:  <td colspan="2">&nbsp;</td>
                   3293: </tr>
                   3294: <tr class="diff-empty">
                   3295:  <td colspan="2" align="center"><b>- No viewable change -</b></td>
                   3296: </tr>
                   3297: EOF
3.120     scop     3298:   }
                   3299:
3.144     scop     3300:   printf(<<EOF, $scriptwhere, $rev1, $rev2);
                   3301: </table>
3.147     scop     3302: <hr style="width: 100%%" noshade>
3.144     scop     3303: <form method="get" action="%s">
                   3304: <table style="border: none">
                   3305: <tr>
                   3306: <td>
                   3307:  <table border="1">
                   3308:   <tr>
                   3309:    <td>
                   3310:     Legend:<br>
                   3311:     <table style="border: none" cellspacing="0" cellpadding="1">
                   3312:      <tr>
                   3313:       <td align="center" class="diff-removed">Removed from v.%s</td>
                   3314:       <td class="diff-empty">&nbsp;</td>
                   3315:      </tr><tr class="diff-changed">
                   3316:       <td align="center" colspan="2">changed lines</td>
                   3317:      </tr><tr>
                   3318:       <td class="diff-empty">&nbsp;</td>
                   3319:       <td align="center" class="diff-added">Added in v.%s</td>
                   3320:      </tr>
                   3321:     </table>
                   3322:    </td>
                   3323:   </tr>
                   3324:  </table>
                   3325: </td>
                   3326: <td>
                   3327: EOF
3.168     scop     3328:   printDiffSelectStickyVars();
3.120     scop     3329:   printDiffSelect($use_java_script);
3.144     scop     3330:   print <<EOF;
                   3331: <input type="submit" value="Show">
                   3332: </td>
                   3333: </tr>
                   3334: </table>
                   3335: </form>
                   3336: EOF
3.120     scop     3337: }
3.167     scop     3338:
                   3339:
                   3340: sub doEnscript($$$)
                   3341: {
                   3342:   my ($filehandle, $highlight, $linenumbers) = @_;
                   3343:
3.174   ! scop     3344:   my @cmd = ($CMD{enscript},
        !          3345:              @enscript_options,
        !          3346:              qw(-q --language=cvsweb -o -),
        !          3347:              "--highlight=$highlight");
        !          3348:
        !          3349:   local $^W = 0; # IPC::Run is noisy w/ perl 5.8.
        !          3350:   local *ENSCRIPT_OUT;
        !          3351:   my ($h, $err) =
        !          3352:     startproc(\@cmd, $filehandle, '>pipe', \*ENSCRIPT_OUT, timeout(30));
        !          3353:   fatal('500 Internal Error', $err) unless $h;
        !          3354:
        !          3355:   # We could short-circuit and have enscript output directly to STDOUT above,
        !          3356:   # but that doesn't work with mod_perl (at least some 1.99 versions).
        !          3357:   if ($linenumbers) {
        !          3358:     my $ln = 0;
        !          3359:     while (<ENSCRIPT_OUT>) {
        !          3360:       printf '<a id="l%d" class="src">%5d: </a>', (++$ln) x 2;
        !          3361:       print $_;
3.167     scop     3362:     }
3.174   ! scop     3363:   } else {
        !          3364:     local $/ = undef;
        !          3365:     print <ENSCRIPT_OUT>;
3.167     scop     3366:   }
3.174   ! scop     3367:   finish($h);
3.167     scop     3368: }
                   3369:
3.120     scop     3370:
3.163     scop     3371: sub navigateHeader($$$$$;$)
3.120     scop     3372: {
3.163     scop     3373:   my ($swhere, $path, $filename, $rev, $title, $moddate) = @_;
3.120     scop     3374:   $swhere = "" if ($swhere eq $scriptwhere);
                   3375:   $swhere = './' . urlencode($filename) if ($swhere eq "");
                   3376:
3.136     scop     3377:   my $qfile = htmlquote($filename);
                   3378:   my $qpath = htmlquote($path);
3.170     scop     3379:   my $trev  = $rev ? " - $rev" : '';
3.100     knu      3380:
3.163     scop     3381:   http_header('', $moddate);
3.133     scop     3382:
3.120     scop     3383:   print <<EOF;
3.100     knu      3384: $HTML_DOCTYPE
3.89      knu      3385: <html>
                   3386: <head>
3.170     scop     3387: <title>$qpath$qfile - $title$trev</title>
3.144     scop     3388: $HTML_META$CSS</head>
3.129     scop     3389: <body class="src">
                   3390: <table width="100%" class="navigate-header" style="border: none" cellspacing="0" cellpadding="1">
3.144     scop     3391:  <tr valign="bottom">
                   3392:   <td>
3.64      knu      3393: EOF
                   3394:
3.170     scop     3395:   print &link($backicon, "$swhere$query" . ($rev ? "#rev$rev" : ''));
3.136     scop     3396:   printf '<b>Return to %s CVS log',
3.170     scop     3397:     &link(htmlquote($filename), "$swhere$query" . ($rev ? "#rev$rev" : ''));
3.120     scop     3398:   print "</b> $fileicon</td>";
                   3399:
3.144     scop     3400:   printf(<<EOF, $diricon, &clickablePath($path, 1));
                   3401:   <td align="right">%s <b>Up to %s</b></td>
                   3402:  </tr>
                   3403: </table>
                   3404: EOF
3.120     scop     3405: }
                   3406:
                   3407: sub plural_write($$)
                   3408: {
                   3409:   my ($num, $text) = @_;
                   3410:   if ($num != 1) {
                   3411:     $text .= "s";
                   3412:   }
                   3413:
                   3414:   if ($num > 0) {
                   3415:     return join (' ', $num, $text);
                   3416:   } else {
                   3417:     return "";
                   3418:   }
3.1       knu      3419: }
                   3420:
                   3421: ##
                   3422: # print readable timestamp in terms of
                   3423: # '..time ago'
                   3424: # H. Zeller <zeller@think.de>
                   3425: ##
3.120     scop     3426: sub readableTime($$)
                   3427: {
                   3428:   my ($secs, $long) = @_;
                   3429:
                   3430:   # this function works correct for time >= 2 seconds
                   3431:   if ($secs < 2) {
                   3432:     return "very little time";
                   3433:   }
                   3434:
                   3435:   my %desc = (
3.133     scop     3436:               1        => 'second',
                   3437:               60       => 'minute',
                   3438:               3600     => 'hour',
                   3439:               86400    => 'day',
                   3440:               604800   => 'week',
                   3441:               2628000  => 'month',
                   3442:               31536000 => 'year'
                   3443:              );
                   3444:
3.120     scop     3445:   my @breaks = sort { $a <=> $b } keys %desc;
3.133     scop     3446:   my $i = 0;
3.120     scop     3447:
                   3448:   while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
                   3449:     $i++;
                   3450:   }
                   3451:   $i--;
3.133     scop     3452:   my $break  = $breaks[$i];
                   3453:   my $retval = plural_write(int($secs / $break), $desc{$break});
3.120     scop     3454:
                   3455:   if ($long == 1 && $i > 0) {
                   3456:     my $rest = $secs % $break;
                   3457:     $i--;
                   3458:     $break = $breaks[$i];
                   3459:     my $resttime = plural_write(int($rest / $break), $desc{$break});
                   3460:     if ($resttime) {
                   3461:       $retval .= ", $resttime";
                   3462:     }
                   3463:   }
3.1       knu      3464:
3.120     scop     3465:   return $retval;
3.1       knu      3466: }
                   3467:
                   3468: ##
                   3469: # clickablePath(String pathname, boolean last_item_clickable)
                   3470: #
                   3471: # returns a html-ified path whereas each directory is a link for
                   3472: # faster navigation. last_item_clickable controls whether the
                   3473: # basename (last directory/file) is a link as well
                   3474: ##
3.120     scop     3475: sub clickablePath($$)
                   3476: {
                   3477:   my ($pathname, $clickLast) = @_;
                   3478:
3.154     scop     3479:   my $root = '[' . htmlquote($CVSROOTdescr{$cvstree} || $cvstree) . ']';
                   3480:
3.144     scop     3481:   # This should never happen (see chooseCVSRoot()), but let's be sure...
3.154     scop     3482:   return $root if ($pathname eq '/');
3.120     scop     3483:
3.144     scop     3484:   my $retval =
3.154     scop     3485:     ' ' . &link($root, sprintf('%s/%s#dirlist', $scriptname, $query));
3.144     scop     3486:   my $wherepath = '';
                   3487:   my ($lastslash) = $pathname =~ m|/$|;
                   3488:
                   3489:   foreach (split (/\//, $pathname)) {
                   3490:     $retval .= ' / ';
                   3491:     $wherepath .= "/$_";
                   3492:     my $last = "$wherepath/" eq "/$pathname" || $wherepath eq "/$pathname";
                   3493:
                   3494:     if ($clickLast || !$last) {
                   3495:       $retval .= &link(htmlquote($_),
                   3496:                        join ('',
                   3497:                              $scriptname, urlencode($wherepath),
                   3498:                              (!$last || $lastslash ? '/' : ''), $query,
                   3499:                              (!$last || $lastslash ? "#dirlist" : "")));
                   3500:     } else {    # do not make a link to the current dir
                   3501:       $retval .= htmlquote($_);
3.120     scop     3502:     }
                   3503:   }
                   3504:   return $retval;
                   3505: }
                   3506:
3.144     scop     3507:
3.120     scop     3508: sub chooseCVSRoot()
                   3509: {
                   3510:
                   3511:   print "<form method=\"get\" action=\"${scriptwhere}\">\n";
                   3512:   if (2 <= @CVSROOT) {
3.133     scop     3513:     foreach my $k (keys %input) {
3.154     scop     3514:       printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   3515:              htmlquote($k), htmlquote($input{$k}))
                   3516:         if ($input{$k} && $k ne 'cvsroot');
3.120     scop     3517:     }
                   3518:
                   3519:     # Form-Elements look wierd in Netscape if the background
                   3520:     # isn't gray and the form elements are not placed
                   3521:     # within a table ...
3.144     scop     3522:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3523: <table style="border: none">
                   3524: <tr>
                   3525: <td><label for="cvsroot" accesskey="C">CVS Root:</label></td>
                   3526: <td>
                   3527: <select id="cvsroot" name="cvsroot"%s>
                   3528: EOF
3.120     scop     3529:
3.133     scop     3530:     foreach my $k (@CVSROOT) {
3.136     scop     3531:       printf("<option value=\"%s\"%s>%s</option>\n",
                   3532:              htmlquote($k),
                   3533:              ($k eq $cvstree) ? ' selected' : '',
                   3534:              htmlquote($CVSROOTdescr{$k} || $k));
3.120     scop     3535:     }
                   3536:     print "</select>\n</td>\n<td>";
                   3537:   } else {
                   3538:
                   3539:     # no choice -- but we need the form to select module/path,
                   3540:     # at least for Netscape
3.154     scop     3541:     printf "<p>\nCVS Root: <b>[%s]</b>",
                   3542:       htmlquote($CVSROOTdescr{$cvstree} || $cvstree);
3.120     scop     3543:   }
                   3544:
3.144     scop     3545:   print <<EOF;
                   3546: <label for="mpath" accesskey="M">
                   3547: Module path or alias:
                   3548: <input type="text" id="mpath" name="path" value="" size="15">
                   3549: </label>
                   3550: <input type="submit" value="Go" accesskey="O">
                   3551: EOF
3.120     scop     3552:
3.144     scop     3553:   print 2 <= @CVSROOT ? "</td>\n</tr>\n</table>" : '</p>';
3.120     scop     3554:   print "\n</form>";
                   3555: }
                   3556:
                   3557: sub chooseMirror()
                   3558: {
                   3559:
                   3560:   # This code comes from the original BSD-cvsweb
                   3561:   # and may not be useful for your site; If you don't
                   3562:   # set %MIRRORS this won't show up, anyway.
                   3563:   scalar(%MIRRORS) or return;
                   3564:
                   3565:   # Should perhaps exclude the current site somehow...
                   3566:   print "\n<p>\nThis CVSweb is mirrored in\n";
                   3567:
                   3568:   my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
                   3569:   my $tmp = pop (@tmp);
                   3570:
                   3571:   if (scalar(@tmp)) {
                   3572:     print join (', ', @tmp), ' and ';
                   3573:   }
                   3574:
                   3575:   print "$tmp.\n</p>\n";
                   3576: }
                   3577:
                   3578: sub fileSortCmp()
                   3579: {
                   3580:   my ($comp) = 0;
                   3581:   my ($c, $d, $af, $bf);
                   3582:
                   3583:   ($af = $a) =~ s/,v$//;
                   3584:   ($bf = $b) =~ s/,v$//;
                   3585:   my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
                   3586:     if (defined($fileinfo{$af}));
                   3587:   my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
                   3588:     if (defined($fileinfo{$bf}));
                   3589:
3.140     scop     3590:   if (defined($filename1) && defined($filename2) &&
                   3591:       $af eq $filename1   && $bf eq $filename2)
3.120     scop     3592:   {
                   3593:
                   3594:     # Two files
3.140     scop     3595:     $comp = -revcmp($rev1, $rev2)             if ($byrev  && $rev1  && $rev2);
                   3596:     $comp = ($date2   <=> $date1)             if ($bydate && $date1 && $date2);
                   3597:     if ($input{ignorecase}) {
                   3598:       $comp = (uc($log1)    cmp uc($log2))    if ($bylog && $log1 && $log2);
                   3599:       $comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
                   3600:                                                   $author1 && $author2);
                   3601:     } else {
                   3602:       $comp = ($log1    cmp $log2)            if ($bylog && $log1 && $log2);
                   3603:       $comp = ($author1 cmp $author2)         if ($byauthor &&
                   3604:                                                   $author1 && $author2);
                   3605:     }
3.120     scop     3606:   }
                   3607:
                   3608:   if ($comp == 0) {
                   3609:
                   3610:     # Directories first, then files under version control,
                   3611:     # then other, "rogue" files.
                   3612:     # Sort by filename if no other criteria available.
                   3613:
                   3614:     my $ad = (
                   3615:       (-d "$fullname/$a")
                   3616:       ? 'D'
                   3617:       : (defined($fileinfo{$af}) ? 'F' : 'R')
                   3618:     );
                   3619:     my $bd = (
                   3620:       (-d "$fullname/$b")
                   3621:       ? 'D'
                   3622:       : (defined($fileinfo{$bf}) ? 'F' : 'R')
                   3623:     );
                   3624:     ($c = $a) =~ s|.*/||;
                   3625:     ($d = $b) =~ s|.*/||;
3.144     scop     3626:
                   3627:     my ($l, $r) = ("$ad$c", "$bd$d");
                   3628:     $comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
                   3629:
                   3630:     # Parent dir is always first, then Attic.
                   3631:     if ($comp != 0) {
                   3632:       if ($l eq 'D..') {
3.149     scop     3633:         $comp = -1;
3.144     scop     3634:       } elsif ($r eq 'D..') {
3.149     scop     3635:         $comp = 1;
3.144     scop     3636:       } elsif ($l eq 'DAttic') {
3.149     scop     3637:         $comp = -1;
3.144     scop     3638:       } elsif ($r eq 'DAttic') {
3.149     scop     3639:         $comp = 1;
3.144     scop     3640:       }
                   3641:     }
3.120     scop     3642:   }
                   3643:   return $comp;
3.1       knu      3644: }
                   3645:
                   3646: # make A url for downloading
3.120     scop     3647: sub download_url($$;$)
                   3648: {
                   3649:   my ($url, $revision, $mimetype) = @_;
3.1       knu      3650:
3.120     scop     3651:   $revision =~ s/\b0\.//;
3.1       knu      3652:
3.146     scop     3653:   if (defined($checkoutMagic) &&
                   3654:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3655:   {
                   3656:     my $path = $where;
                   3657:     $path =~ s|[^/]+$||;
                   3658:     $url = "$scriptname/$checkoutMagic/${path}$url";
                   3659:   }
                   3660:   $url .= "?rev=$revision";
                   3661:   $url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
3.67      knu      3662:
3.120     scop     3663:   $url;
3.1       knu      3664: }
                   3665:
3.12      knu      3666: # Presents a link to download the
3.1       knu      3667: # selected revision
3.120     scop     3668: sub download_link($$$;$)
                   3669: {
                   3670:   my ($url, $revision, $textlink, $mimetype) = @_;
                   3671:   my ($fullurl) = download_url($url, $revision, $mimetype);
                   3672:
                   3673:   $fullurl =~ s/:/sprintf("%%%02x", ord($&))/eg;
                   3674:
3.159     scop     3675:   printf '<a href="%s" class="download-link"', hrefquote("$fullurl$barequery");
3.120     scop     3676:
3.146     scop     3677:   if ($open_extern_window &&
                   3678:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3679:   {
                   3680:     print ' target="cvs_checkout"';
                   3681:
                   3682:     # we should have
                   3683:     #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   3684:     # in order to allow the user to resize the window; otherwise
                   3685:     # the user may resize the window, but on next checkout - zap -
                   3686:     # its original (configured s. cvsweb.conf) size is back again
                   3687:     # .. annoying (if $extern_window_(width|height) is defined)
                   3688:     # but this if (..) solution is far from perfect
                   3689:     # what we need to do as well is
                   3690:     # 1) save cvswin in an invisible frame that always exists
                   3691:     #    (document.cvswin will be void on next load)
                   3692:     # 2) on close of the cvs_checkout - window set the cvswin
                   3693:     #    variable to 'null' again - so that it will be
                   3694:     #    reopenend with the configured size
                   3695:     # anyone a JavaScript programmer ?
                   3696:     # .. so here without if (..):
                   3697:     # currently, the best way is to comment out the size parameters
                   3698:     # ($extern_window...) in cvsweb.conf.
                   3699:     if ($use_java_script) {
3.159     scop     3700:       my @attr = qw(resizable scrollbars menubar);
3.120     scop     3701:
                   3702:       push @attr, qw(status toolbar)
                   3703:         if (defined($mimetype) && $mimetype eq "text/html");
                   3704:
                   3705:       push @attr, "width=$extern_window_width"
                   3706:         if (defined($extern_window_width));
                   3707:
                   3708:       push @attr, "height=$extern_window_height"
                   3709:         if (defined($extern_window_height));
                   3710:
                   3711:       # We need the "return false" here to prevent browsers
                   3712:       # from following the href after the onclick handler.
                   3713:       # This would effectively load the same document in
                   3714:       # the same window *twice*.
                   3715:       printf q` onclick="window.open('%s','cvs_checkout','%s');return false"`,
                   3716:         hrefquote("$fullurl$barequery"), join (',', @attr);
                   3717:     }
                   3718:   }
3.159     scop     3719:   print ">$textlink</a>";
3.132     scop     3720: }
                   3721:
3.170     scop     3722: sub graph_link($;$)
3.132     scop     3723: {
3.170     scop     3724:   my ($url, $text) = @_;
3.132     scop     3725:   $text ||= $graphicon;
3.170     scop     3726:   return sprintf('<a href="%s?graph=1%s">%s</a>',
                   3727:                  hrefquote($url), hrefquote($barequery), $text);
3.1       knu      3728: }
                   3729:
                   3730: # Returns a Query string with the
                   3731: # specified parameter toggled
3.140     scop     3732: sub toggleQuery($;$)
3.120     scop     3733: {
                   3734:   my ($toggle, $value) = @_;
3.133     scop     3735:
                   3736:   my %vars = %input;
3.120     scop     3737:
                   3738:   if (defined($value)) {
                   3739:     $vars{$toggle} = $value;
                   3740:   } else {
                   3741:     $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   3742:   }
                   3743:
                   3744:   # Build a new query of non-default paramenters
3.133     scop     3745:   my $newquery = "";
                   3746:   foreach my $var (@stickyvars) {
3.120     scop     3747:     my ($value)   = defined($vars{$var})         ? $vars{$var}         : "";
                   3748:     my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   3749:
                   3750:     if ($value ne $default) {
                   3751:       $newquery .= "&" if ($newquery ne "");
                   3752:       $newquery .= urlencode($var) . "=" . urlencode($value);
                   3753:     }
                   3754:   }
                   3755:
                   3756:   if ($newquery) {
                   3757:     return '?' . $newquery;
                   3758:   }
                   3759:   return "";
                   3760: }
                   3761:
                   3762: sub urlencode($)
                   3763: {
                   3764:   local ($_) = @_;
                   3765:
                   3766:   s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
                   3767:
                   3768:   $_;
                   3769: }
                   3770:
                   3771: sub htmlquote($)
                   3772: {
                   3773:   local ($_) = @_;
                   3774:
                   3775:   # Special Characters; RFC 1866
                   3776:   s/&/&amp;/g;
                   3777:   s/\"/&quot;/g;
                   3778:   s/</&lt;/g;
                   3779:   s/>/&gt;/g;
                   3780:
                   3781:   $_;
                   3782: }
                   3783:
                   3784: sub htmlunquote($)
                   3785: {
                   3786:   local ($_) = @_;
                   3787:
                   3788:   # Special Characters; RFC 1866
                   3789:   s/&quot;/\"/g;
                   3790:   s/&lt;/</g;
                   3791:   s/&gt;/>/g;
                   3792:   s/&amp;/&/g;
                   3793:
                   3794:   $_;
                   3795: }
                   3796:
                   3797: sub hrefquote($)
                   3798: {
                   3799:   local ($_) = @_;
                   3800:
                   3801:   y/ /+/;
                   3802:
                   3803:   htmlquote($_);
                   3804: }
                   3805:
3.163     scop     3806: sub http_header(;$$)
3.120     scop     3807: {
3.163     scop     3808:   my ($content_type, $moddate) = @_;
                   3809:   $content_type ||= 'text/html';
3.120     scop     3810:
                   3811:   $content_type .= "; charset=$charset"
3.163     scop     3812:     if ($charset && $content_type =~ m,^text/,);
3.120     scop     3813:
3.163     scop     3814:   if ($moddate) {
3.120     scop     3815:     if ($is_mod_perl) {
                   3816:       Apache->request->header_out(
                   3817:         "Last-Modified" => scalar gmtime($moddate) . " GMT");
                   3818:     } else {
                   3819:       print "Last-Modified: ", scalar gmtime($moddate), " GMT\r\n";
                   3820:     }
                   3821:   }
                   3822:
                   3823:   if ($is_mod_perl) {
                   3824:     Apache->request->content_type($content_type);
                   3825:   } else {
                   3826:     print "Content-Type: $content_type\r\n";
                   3827:   }
                   3828:
                   3829:   if ($allow_compress && $maycompress) {
                   3830:     if ($has_zlib
                   3831:         || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c")))
                   3832:     {
                   3833:
                   3834:       if ($is_mod_perl) {
                   3835:         Apache->request->content_encoding("x-gzip");
                   3836:         Apache->request->header_out(Vary => "Accept-Encoding");
                   3837:         Apache->request->send_http_header;
                   3838:       } else {
                   3839:         print "Content-Encoding: x-gzip\r\n";
                   3840:         print "Vary: Accept-Encoding\r\n";    #RFC 2068, 14.43
                   3841:         print "\r\n";                         # Close headers
                   3842:       }
                   3843:       $| = 1;
                   3844:       $| = 0;                                 # Flush header output
                   3845:
                   3846:       if ($has_zlib) {
                   3847:         tie *GZIP, __PACKAGE__, \*STDOUT;
                   3848:       }
                   3849:       select(GZIP);
                   3850:       $gzip_open = 1;
                   3851:
3.149     scop     3852:       #     print "<!-- gzipped -->" if ($content_type =~ m|^text/html\b|);
3.120     scop     3853:     } else {
                   3854:       if ($is_mod_perl) {
                   3855:         Apache->request->send_http_header;
                   3856:       } else {
                   3857:         print "\r\n";    # Close headers
                   3858:       }
                   3859:       print
                   3860:         "<span style=\"font-size: smaller\">Unable to find gzip binary in the <b>\$command_path</b> ($command_path) to compress output</span><br>";
                   3861:     }
                   3862:   } else {
                   3863:
                   3864:     if ($is_mod_perl) {
                   3865:       Apache->request->send_http_header;
                   3866:     } else {
                   3867:       print "\r\n";      # Close headers
                   3868:     }
                   3869:   }
                   3870: }
                   3871:
3.131     scop     3872:
3.163     scop     3873: sub html_header($;$)
3.120     scop     3874: {
3.163     scop     3875:   my ($title, $moddate) = @_;
                   3876:   $title = htmlquote($title);
3.162     scop     3877:   my $l = $logo || '';
3.163     scop     3878:   http_header('text/html', $moddate);
3.120     scop     3879:   print <<EOH;
3.100     knu      3880: $HTML_DOCTYPE
3.1       knu      3881: <html>
3.40      knu      3882: <head>
3.134     scop     3883: <title>$title</title>
3.144     scop     3884: $HTML_META$CSS</head>
3.129     scop     3885: <body>
3.162     scop     3886: $l <h1 align="center">$title</h1>
3.1       knu      3887: EOH
                   3888: }
                   3889:
3.120     scop     3890: sub html_footer()
                   3891: {
3.127     scop     3892:   print "<hr noshade>\n<address>$address</address>\n" if $address;
                   3893:   print "</body>\n</html>\n";
3.1       knu      3894: }
                   3895:
3.120     scop     3896: sub link_tags($)
                   3897: {
                   3898:   my ($tags) = @_;
                   3899:   my ($ret)  = "";
                   3900:   my ($fileurl, $filename);
                   3901:
                   3902:   ($filename = $where) =~ s/^.*\///;
                   3903:   $fileurl = './' . urlencode($filename);
                   3904:
                   3905:   foreach my $sym (split (", ", $tags)) {
                   3906:     $ret .= ",\n" if ($ret ne "");
3.136     scop     3907:     $ret .= &link(htmlquote($sym),
                   3908:                   $fileurl . toggleQuery('only_with_tag', $sym));
3.120     scop     3909:   }
                   3910:   return "$ret\n";
3.1       knu      3911: }
                   3912:
                   3913: #
3.81      knu      3914: # See if a module is listed in the config file's @HideModules list.
3.1       knu      3915: #
3.120     scop     3916: sub forbidden_module($)
                   3917: {
                   3918:   my ($module) = @_;
                   3919:   local $_;
                   3920:
                   3921:   for (@HideModules) {
                   3922:     return 1 if $module =~ $_;
                   3923:   }
                   3924:   return 0;
                   3925: }
                   3926:
                   3927: sub forbidden_file($)
                   3928: {
                   3929:   my ($path) = @_;
                   3930:   $path = substr($path, length($cvsroot) + 1);
                   3931:   local $_;
                   3932:   for (@ForbiddenFiles) {
                   3933:     return 1 if $path =~ $_;
                   3934:   }
                   3935:   return 0;
3.174   ! scop     3936: }
        !          3937:
        !          3938:
        !          3939: #
        !          3940: # Starts a process using IPC::Run.  All arguments are passed to
        !          3941: # IPC::Run::start() as-is.  Returns an array ($harness, $error) where
        !          3942: # $harness is from IPC::Run if start() succeeds, undef otherwise.  In case
        !          3943: # of an error, $error contains message.
        !          3944: #
        !          3945: sub startproc($@)
        !          3946: {
        !          3947:   my $h = undef;
        !          3948:   eval {
        !          3949:     local $^W = 0;
        !          3950:     local $SIG{__DIE__};
        !          3951:     $h = start(@_) or die("return code: $?");
        !          3952:   };
        !          3953:   my $err = $@ ? "Failed to run '@{$_[0]}': $@" : undef;
        !          3954:   return ($h, $err);
3.129     scop     3955: }
                   3956:
3.25      knu      3957:
3.173     scop     3958: # Close the GZIP handle, and remove the tie.
3.120     scop     3959: sub gzipclose
                   3960: {
                   3961:   if ($gzip_open) {
                   3962:     select(STDOUT);
                   3963:     close(GZIP);
                   3964:     untie *GZIP;
                   3965:     $gzip_open = 0;
                   3966:   }
3.23      knu      3967: }
                   3968:
                   3969: # implement a gzipped file handle via the Compress:Zlib compression
                   3970: # library.
                   3971:
                   3972: sub MAGIC1() { 0x1f }
                   3973: sub MAGIC2() { 0x8b }
3.80      knu      3974: sub OSCODE() { 3 }
3.23      knu      3975:
3.120     scop     3976: sub TIEHANDLE
                   3977: {
                   3978:   my ($class, $out) = @_;
                   3979:   my ($d) = Compress::Zlib::deflateInit(
                   3980:     -Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
                   3981:     -WindowBits => -Compress::Zlib::MAX_WBITS()
                   3982:     )
                   3983:     or return undef;
                   3984:   my ($o) = { handle => $out,
                   3985:               dh     => $d,
                   3986:               crc    => 0,
                   3987:               len    => 0,
                   3988:             };
                   3989:   my ($header) = pack("c10",
                   3990:                       MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
                   3991:                       0, 0, 0, 0, 0, 0, OSCODE);
                   3992:   print {$o->{handle}} $header;
                   3993:   return bless($o, $class);
                   3994: }
                   3995:
                   3996: sub PRINT
                   3997: {
                   3998:   my ($o)   = shift;
3.164     scop     3999:   my ($buf) = join (defined($,) ? $, : "", @_);
3.120     scop     4000:   my ($len) = length($buf);
                   4001:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   4002:   print {$o->{handle}} $compressed if defined($compressed);
                   4003:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   4004:   $o->{len} += $len;
                   4005:   return $len;
                   4006: }
                   4007:
                   4008: sub PRINTF
                   4009: {
                   4010:   my ($o)   = shift;
                   4011:   my ($fmt) = shift;
                   4012:   my ($buf) = sprintf($fmt, @_);
                   4013:   my ($len) = length($buf);
                   4014:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   4015:   print {$o->{handle}} $compressed if defined($compressed);
                   4016:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   4017:   $o->{len} += $len;
                   4018:   return $len;
                   4019: }
                   4020:
                   4021: sub WRITE
                   4022: {
                   4023:   my ($o, $buf, $len, $off) = @_;
                   4024:   my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   4025:   print {$o->{handle}} $compressed if defined($compressed);
                   4026:   $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   4027:   $o->{len} += $len;
                   4028:   return $len;
                   4029: }
                   4030:
                   4031: sub CLOSE
                   4032: {
                   4033:   my ($o) = @_;
                   4034:   return if !defined($o->{dh});
                   4035:   my ($buf) = $o->{dh}->flush();
                   4036:   $buf .= pack("V V", $o->{crc}, $o->{len});
                   4037:   print {$o->{handle}} $buf;
                   4038:   undef $o->{dh};
                   4039: }
                   4040:
                   4041: sub DESTROY
                   4042: {
                   4043:   my ($o) = @_;
                   4044:   CLOSE($o);
1.1       jfieber  4045: }
3.149     scop     4046:
                   4047: # Local variables:
                   4048: # indent-tabs-mode: nil
                   4049: # cperl-indent-level: 2
                   4050: # End:

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