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Annotation of cvsweb/cvsweb.cgi, Revision 3.172

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);
                    103: use IO::Pipe              qw();
                    104: use IPC::Open2            qw(open2);
3.172   ! scop      105: use Time::Local           qw(timegm);
3.122     scop      106:
                    107: # -----------------------------------------------------------------------------
                    108:
                    109: # All global initialization that can be done in compile time should go to
                    110: # the BEGIN block.  Persistent environments, such as mod_perl, will benefit
                    111: # from this.
                    112:
                    113: BEGIN
                    114: {
                    115:   $VERSION = '3.0-dev';
                    116:
                    117:   $HTML_DOCTYPE =
                    118:     '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">';
                    119:
                    120:   $HTML_META = <<EOM;
                    121: <meta name="robots" content="nofollow">
                    122: <meta name="generator" content="FreeBSD-CVSweb $VERSION">
                    123: <meta http-equiv="Content-Script-Type" content="text/javascript">
                    124: <meta http-equiv="Content-Style-Type" content="text/css">
                    125: EOM
                    126:
                    127:   # Check if the zlib C library interface is installed, and if yes,
                    128:   # we can avoid using the extra gzip process.
                    129:   eval { require Compress::Zlib; };
                    130:   $has_zlib = !$@;
                    131:
3.156     scop      132:   # Use MIME::Types for MIME type lookups if it's available.
                    133:   eval {
                    134:     require MIME::Types;
                    135:     $MimeTypes = MIME::Types->new();
                    136:   };
                    137:   $MimeTypes = undef if $@;
                    138:
3.122     scop      139:   $is_mod_perl = defined($ENV{MOD_PERL});
                    140:
                    141:   $LOG_FILESEPARATOR = qr/^={77}$/o;
                    142:   $LOG_REVSEPARATOR  = qr/^-{28}$/o;
3.146     scop      143:
                    144:   $CvsWebMarkupRE = qr/^text\/(x-cvsweb|vnd\.viewcvs)-markup$/io;
3.172   ! scop      145:
3.122     scop      146: }
                    147:
                    148: # -----------------------------------------------------------------------------
                    149:
3.12      knu       150: sub printDiffSelect($);
3.168     scop      151: sub printDiffSelectStickyVars();
3.37      knu       152: sub printDiffLinks($$);
                    153: sub printLogSortSelect($);
3.12      knu       154: sub findLastModifiedSubdirs(@);
3.36      knu       155: sub htmlify_sub(&$);
3.12      knu       156: sub htmlify($;$);
3.20      knu       157: sub spacedHtmlText($;$);
3.12      knu       158: sub link($$);
                    159: sub revcmp($$);
3.103     knu       160: sub fatal($$@);
3.12      knu       161: sub redirect($);
                    162: sub safeglob($);
3.58      knu       163: sub search_path($);
3.156     scop      164: sub getMimeType($;$);
3.24      knu       165: sub head($;$);
                    166: sub scan_directives(@);
3.86      knu       167: sub openOutputFilter();
3.133     scop      168: sub doAnnotate($);
3.12      knu       169: sub doCheckout($$);
3.167     scop      170: sub doEnscript($$$);
3.170     scop      171: sub doGraph();
                    172: sub doGraphView();
3.163     scop      173: sub cvswebMarkup($$$;$);
3.12      knu       174: sub viewable($);
                    175: sub doDiff($$$$$$);
                    176: sub getDirLogs($$@);
                    177: sub readLog($;$);
                    178: sub printLog($;$);
                    179: sub doLog($);
                    180: sub flush_diff_rows($$$$);
3.144     scop      181: sub human_readable_diff($$);
3.163     scop      182: sub navigateHeader($$$$$;$);
3.12      knu       183: sub plural_write($$);
                    184: sub readableTime($$);
                    185: sub clickablePath($$);
                    186: sub chooseCVSRoot();
                    187: sub chooseMirror();
                    188: sub fileSortCmp();
                    189: sub download_url($$;$);
                    190: sub download_link($$$;$);
3.170     scop      191: sub graph_link($;$);
3.140     scop      192: sub toggleQuery($;$);
3.12      knu       193: sub urlencode($);
3.35      knu       194: sub htmlquote($);
3.36      knu       195: sub htmlunquote($);
3.48      knu       196: sub hrefquote($);
3.163     scop      197: sub http_header(;$$);
                    198: sub html_header($;$);
3.12      knu       199: sub html_footer();
                    200: sub link_tags($);
3.81      knu       201: sub forbidden_file($);
3.12      knu       202: sub forbidden_module($);
                    203:
3.1       knu       204: ##### Start of Configuration Area ########
3.122     scop      205:
3.142     scop      206: # Get rid of unsafe environment vars.  Don't do this in BEGIN...
                    207: delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
3.59      knu       208:
3.172   ! scop      209: my ($mydir) = (dirname($0) =~ /(.*)/);    # untaint
3.58      knu       210:
3.12      knu       211: # == EDIT this ==
3.28      knu       212: # Locations to search for user configuration, in order:
3.165     scop      213: for (catfile($mydir, 'cvsweb.conf'), '/usr/local/etc/cvsweb/cvsweb.conf') {
                    214:   if (-r $_) {
3.120     scop      215:     $config = $_;
                    216:     last;
                    217:   }
3.11      knu       218: }
3.122     scop      219: undef $mydir;
3.1       knu       220:
                    221: # == Configuration defaults ==
                    222: # Defaults for configuration variables that shouldn't need
                    223: # to be configured..
                    224: $allow_version_select = 1;
3.120     scop      225: $allow_log_extra      = 1;
3.1       knu       226:
                    227: ##### End of Configuration Area   ########
                    228:
                    229: ######## Configuration variables #########
                    230: # These are defined to allow checking with perl -cw
3.120     scop      231:
3.80      knu       232: @CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
3.129     scop      233:   %MTYPES = %tags = %alltags = %fileinfo = ();
3.120     scop      234:
3.129     scop      235: $cvstreedefault = $logo = $defaulttitle =
3.120     scop      236:   $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
3.131     scop      237:   $tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
3.129     scop      238:   $hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
3.120     scop      239:   $allow_markup = $use_java_script = $open_extern_window =
                    240:   $extern_window_width = $extern_window_height = $edit_option_form =
3.144     scop      241:   $show_subdir_lastmod = $show_log_in_markup =
3.163     scop      242:   $tabstop = $use_moddate = $gzip_open = undef;
3.32      knu       243:
3.37      knu       244: @DIFFTYPES = qw(h H u c s);
                    245: @DIFFTYPES{@DIFFTYPES} = (
3.120     scop      246:   {
                    247:     'descr'   => 'colored',
                    248:     'opts'    => ['-u'],
                    249:     'colored' => 1,
                    250:   },
                    251:   {
                    252:     'descr'   => 'long colored',
                    253:     'opts'    => ['--unified=15'],
                    254:     'colored' => 1,
                    255:   },
                    256:   {
                    257:     'descr'   => 'unified',
                    258:     'opts'    => ['-u'],
                    259:     'colored' => 0,
                    260:   },
                    261:   {
                    262:     'descr'   => 'context',
                    263:     'opts'    => ['-c'],
                    264:     'colored' => 0,
                    265:   },
                    266:   {
                    267:     'descr'   => 'side by side',
                    268:     'opts'    => ['--side-by-side', '--width=164'],
                    269:     'colored' => 0,
                    270:   },
3.80      knu       271: );
3.37      knu       272:
                    273: @LOGSORTKEYS = qw(cvs date rev);
                    274: @LOGSORTKEYS{@LOGSORTKEYS} = (
3.120     scop      275:   {'descr' => 'Not sorted',},
                    276:   {'descr' => 'Commit date',},
                    277:   {'descr' => 'Revision',},
3.80      knu       278: );
3.37      knu       279:
3.1       knu       280: ##### End of configuration variables #####
                    281:
3.120     scop      282: $checkoutMagic =  "~checkout~";
                    283: $pathinfo      =  defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    284: $where         =  $pathinfo;
                    285: $doCheckout    =  ($where =~ m|^/$checkoutMagic/|);
                    286: $where         =~ s|^/$checkoutMagic/|/|;
                    287: $where         =~ s|^/||;
                    288: $scriptname    =  defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    289: $scriptname    =~ s|^/*|/|;
3.63      knu       290:
3.64      knu       291: # Let's workaround thttpd's stupidity..
3.63      knu       292: if ($scriptname =~ m|/$|) {
3.120     scop      293:   $pathinfo .= '/';
                    294:   my $re = quotemeta $pathinfo;
                    295:   $scriptname =~ s/$re$//;
3.63      knu       296: }
                    297:
3.120     scop      298: $scriptwhere  = $scriptname;
3.63      knu       299: $scriptwhere .= '/' . urlencode($where);
                    300: $where = '/' if ($where eq '');
3.3       knu       301:
3.1       knu       302: # in lynx, it it very annoying to have two links
                    303: # per file, so disable the link at the icon
                    304: # in this case:
3.120     scop      305: $Browser     = $ENV{HTTP_USER_AGENT} || '';
3.80      knu       306: $is_links    = ($Browser =~ m`^Links `);
                    307: $is_lynx     = ($Browser =~ m`^Lynx/`i);
                    308: $is_w3m      = ($Browser =~ m`^w3m/`i);
                    309: $is_msie     = ($Browser =~ m`MSIE`);
3.5       knu       310: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       311:
3.34      knu       312: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       313:
                    314: $nofilelinks = $is_textbased;
3.1       knu       315:
                    316: # newer browsers accept gzip content encoding
                    317: # and state this in a header
                    318: # (netscape did always but didn't state it)
                    319: # It has been reported that these
                    320: #  braindamaged MS-Internet Exploders claim that they
                    321: # accept gzip .. but don't in fact and
                    322: # display garbage then :-/
3.23      knu       323: # Turn off gzip if running under mod_perl and no zlib is available,
                    324: # piping does not work as expected inside the server.
3.120     scop      325: $maycompress = (
                    326:   ((defined($ENV{HTTP_ACCEPT_ENCODING})
                    327:     && $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
                    328:    || $is_mozilla3)
                    329:   && !$is_msie
                    330:   && !($is_mod_perl && !$has_zlib)
                    331: );
3.1       knu       332:
                    333: # put here the variables we need in order
                    334: # to hold our state - they will be added (with
3.12      knu       335: # their current value) to any link/query string
3.1       knu       336: # you construct
3.149     scop      337: @stickyvars = qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag
                    338:                  ln);
3.97      knu       339: @unsafevars = qw(logsort only_with_tag r1 r2 rev sortby tr1 tr2);
1.1       jfieber   340:
3.1       knu       341: if (-f $config) {
3.120     scop      342:   do "$config"
                    343:     or fatal("500 Internal Error",
                    344:              'Error in loading configuration file: %s<br><br>%s<br>',
                    345:              $config, $@);
3.27      knu       346: } else {
3.120     scop      347:   fatal("500 Internal Error",
                    348:         'Configuration not found.  Set the variable <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
3.1       knu       349: }
                    350:
3.144     scop      351: $CSS = $cssurl ?
                    352:   sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n",
                    353:           htmlquote($cssurl)) : '';
                    354:
3.1       knu       355: undef %input;
3.3       knu       356: $query = $ENV{QUERY_STRING};
                    357:
3.12      knu       358: if (defined($query) && $query ne '') {
3.120     scop      359:   foreach (split (/&/, $query)) {
                    360:     y/+/ /;
                    361:     s/%(..)/sprintf("%c", hex($1))/ge;    # unquote %-quoted
                    362:     if (/(\S+)=(.*)/) {
                    363:       $input{$1} = $2 if ($2 ne "");
                    364:     } else {
                    365:       $input{$_}++;
                    366:     }
                    367:   }
1.7       fenner    368: }
1.10      wosch     369:
3.12      knu       370: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       371: $input{only_with_tag} = $input{only_on_branch}
3.120     scop      372:   if (defined($input{only_on_branch}));
3.97      knu       373:
3.154     scop      374: # Prevent cross-site scripting, untaint.
3.97      knu       375: foreach (@unsafevars) {
3.154     scop      376:   if (defined($input{$_})) {
                    377:     # Colons are needed in diffs between tags.
3.155     scop      378:     if ($input{$_} =~ /^([\w\-.:]*)$/) {
3.154     scop      379:       $input{$_} = $1;
                    380:     } else {
                    381:       fatal("500 Internal Error", 'Malformed query (%s=%s)', $_, $input{$_});
                    382:     }
3.120     scop      383:   }
3.97      knu       384: }
                    385:
                    386: if (defined($input{"content-type"})) {
3.146     scop      387:   fatal('500 Internal Error', 'Unsupported content-type')
                    388:     if ($input{"content-type"} !~ /^[-0-9A-Za-z]+\/[-0-9A-Za-z\.]+$/);
3.97      knu       389: }
1.10      wosch     390:
3.158     scop      391: #
                    392: # CVS roots
                    393: #
                    394: my $rootfound = 0;
                    395: for (my $i = 0; $i < scalar(@CVSrepositories); $i += 2) {
                    396:   my $key = $CVSrepositories[$i];
                    397:   my ($descr, $cvsroot) = @{$CVSrepositories[$i+1]};
                    398:   unless (-d $cvsroot) {
                    399:     warn("Root '$cvsroot' defined in \@CVSrepositories is not a directory, " .
                    400:          'entry ignored');
                    401:     next;
                    402:   }
                    403:   $rootfound ||= 1;
                    404:   $cvstreedefault = $key unless defined($cvstreedefault);
                    405:   $CVSROOTdescr{$key} = $descr;
                    406:   $CVSROOT{$key} = $cvsroot;
                    407:   push(@CVSROOT, $key);
                    408: }
                    409: unless ($rootfound) {
                    410:   fatal('500 Internal Error',
                    411:         'No valid CVS roots found!  See <code>@CVSrepositories</code> in ' .
                    412:         'your configuration file (<code>%s</code>).',
                    413:         $config);
                    414: }
                    415: undef $rootfound;
                    416:
                    417: #
                    418: # Default CVS root
                    419: #
                    420: if (!defined($CVSROOT{$cvstreedefault})) {
                    421:   fatal("500 Internal Error",
                    422:         '<code>$cvstreedefault</code> points to a repository (%s) not ' .
                    423:         'defined in <code>@CVSrepositories</code> in your configuration ' .
                    424:         'file (<code>%s</code>).',
                    425:         $cvstreedefault,
                    426:         $config);
                    427: }
                    428:
3.1       knu       429: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     430:
3.120     scop      431: while (my ($key, $defval) = each %DEFAULTVALUE) {
3.80      knu       432:
3.120     scop      433:   # Replace not given parameters with defaults.
                    434:   next unless (defined($defval)
3.121     scop      435:                && (!defined($input{$key}) || $input{$key} eq ''));
3.120     scop      436:
                    437:   # Empty checkboxes in forms return nothing, so we define a helper variable
                    438:   # in these forms (copt) which indicates that we just set parameters with a
                    439:   # checkbox.
                    440:   if (defined($input{'copt'})) {
                    441:
                    442:     # 'copt' is defined -> the result of empty input checkbox
                    443:     # -> set to zero (disable) if default is a boolean (0|1).
                    444:     $input{$key} = 0 if ($defval eq '0' || $defval eq '1');
                    445:
                    446:   } else {
                    447:
                    448:     # 'copt' isn't defined --> empty input is not the result
                    449:     # of empty input checkbox --> set default.
                    450:     $input{$key} = $defval;
                    451:   }
1.10      wosch     452: }
3.12      knu       453:
3.1       knu       454: $barequery = "";
3.31      knu       455: my @barequery;
3.1       knu       456: foreach (@stickyvars) {
3.80      knu       457:
3.120     scop      458:   # construct a query string with the sticky non default parameters set
                    459:   if (defined($input{$_})
                    460:       && $input{$_} ne ''
                    461:       && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
                    462:   {
                    463:     push @barequery, join ('=', urlencode($_), urlencode($input{$_}));
                    464:   }
3.1       knu       465: }
3.80      knu       466:
3.168     scop      467: if ($allow_enscript) {
                    468:   push(@DIFFTYPES, qw(uc cc sc));
                    469:   @DIFFTYPES{qw(uc cc sc)} = (
                    470:     {
                    471:      'descr'   => 'unified, colored',
                    472:      'opts'    => ['-u'],
                    473:      'colored' => 0,
                    474:     },
                    475:     {
                    476:      'descr'   => 'context, colored',
                    477:      'opts'    => ['-c'],
                    478:      'colored' => 0,
                    479:     },
                    480:     {
                    481:      'descr'   => 'side by side, colored',
                    482:      'opts'    => ['--side-by-side', '--width=164'],
                    483:      'colored' => 0,
                    484:     },
                    485:   );
                    486: } else {
                    487:   # No Enscript -> respect difftype, but don't offer colorization.
                    488:   if ($input{f} && $input{f} =~ /^([ucs])c$/) {
                    489:     $input{f} = $1;
                    490:   }
                    491: }
                    492:
3.1       knu       493: # is there any query ?
3.31      knu       494: if (@barequery) {
3.120     scop      495:   $barequery = join ('&', @barequery);
                    496:   $query     = "?$barequery";
                    497:   $barequery = "&$barequery";
3.80      knu       498: } else {
3.120     scop      499:   $query = "";
3.1       knu       500: }
3.31      knu       501: undef @barequery;
3.1       knu       502:
3.120     scop      503: if (defined($input{'path'})) {
                    504:   redirect("$scriptname/$input{path}$query");
3.57      knu       505: }
                    506:
3.1       knu       507: # get actual parameters
3.144     scop      508: {
                    509:   my $sortby = $input{sortby} || 'file';
                    510:   $bydate    = 0;
                    511:   $byrev     = 0;
                    512:   $byauthor  = 0;
                    513:   $bylog     = 0;
                    514:   $byfile    = 0;
                    515:   if ($sortby eq 'date') {
                    516:     $bydate = 1;
                    517:   } elsif ($sortby eq 'rev') {
                    518:     $byrev = 1;
                    519:   } elsif ($sortby eq 'author') {
                    520:     $byauthor = 1;
                    521:   } elsif ($sortby eq 'log') {
                    522:     $bylog = 1;
                    523:   } else {
                    524:     $byfile = 1;
                    525:   }
3.1       knu       526: }
                    527:
3.37      knu       528: $defaultDiffType = $input{'f'};
3.1       knu       529:
3.3       knu       530: $logsort = $input{'logsort'};
3.1       knu       531:
                    532: # alternate CVS-Tree, configured in cvsweb.conf
                    533: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
3.120     scop      534:   $cvstree = $input{'cvsroot'};
3.1       knu       535: } else {
3.120     scop      536:   $cvstree = $cvstreedefault;
1.10      wosch     537: }
                    538:
3.1       knu       539: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     540:
3.1       knu       541: # create icons out of description
3.120     scop      542: foreach my $k (keys %ICONS) {
                    543:   my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
                    544:   no strict 'refs';
                    545:   if ($ipath) {
                    546:     ${"${k}icon"} =
                    547:       sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d">',
3.132     scop      548:               hrefquote($ipath), htmlquote($itxt), $iwidth, $iheight);
3.120     scop      549:   } else {
                    550:     ${"${k}icon"} = $itxt;
                    551:   }
1.24      wosch     552: }
                    553:
3.27      knu       554: my $config_cvstree = "$config-$cvstree";
                    555:
3.1       knu       556: # Do some special configuration for cvstrees
3.27      knu       557: if (-f $config_cvstree) {
3.120     scop      558:   do "$config_cvstree"
                    559:     or fatal("500 Internal Error",
                    560:              'Error in loading configuration file: %s<br><br>%s<br>',
                    561:              $config_cvstree, $@);
3.27      knu       562: }
3.31      knu       563: undef $config_cvstree;
3.1       knu       564:
3.120     scop      565: $re_prcategories  = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
                    566: $re_prkeyword     = quotemeta($prkeyword) if defined($prkeyword);
                    567: $prcgi           .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     568:
3.80      knu       569: $fullname         = "$cvsroot/$where";
3.1       knu       570:
3.63      knu       571: my $rewrite = 0;
                    572:
                    573: if ($pathinfo =~ m|//|) {
3.120     scop      574:   $pathinfo =~ y|/|/|s;
                    575:   $rewrite = 1;
3.63      knu       576: }
                    577:
3.120     scop      578: if (-d $fullname) {
                    579:   if ($pathinfo !~ m|/$|) {
                    580:     $pathinfo .= '/';
                    581:     $rewrite   = 1;
                    582:   }
                    583: } else {
                    584:   if ($pathinfo =~ m|/$|) {
                    585:     chop $pathinfo;
                    586:     $rewrite = 1;
                    587:   }
3.63      knu       588: }
                    589:
                    590: if ($rewrite) {
3.120     scop      591:   redirect($scriptname . urlencode($pathinfo) . $query);
3.1       knu       592: }
                    593:
3.63      knu       594: undef $rewrite;
                    595:
3.1       knu       596: if (!-d $cvsroot) {
3.120     scop      597:   fatal("500 Internal Error",
                    598:         '$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       599: }
                    600:
                    601: #
                    602: # See if the module is in our forbidden list.
                    603: #
                    604: $where =~ m:([^/]*):;
                    605: $module = $1;
                    606: if ($module && &forbidden_module($module)) {
3.120     scop      607:   fatal("403 Forbidden", 'Access to %s forbidden.', $where);
3.1       knu       608: }
3.46      knu       609:
                    610: #
                    611: # Handle tarball downloads before any headers are output.
                    612: #
                    613: if ($input{tarball}) {
3.120     scop      614:   fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
                    615:     unless $allow_tar;
                    616:   my ($module)  =  ($where =~ m,^/?(.*),);    # untaint
                    617:   $module       =~ s,/([^/]*)$,,;
                    618:   my ($ext)     =  ($1 =~ /(\.tar\.gz|\.zip)$/);
                    619:   my ($basedir) =  ($module =~ m,([^/]+)$,);
                    620:
                    621:   if ($basedir eq '' || $module eq '') {
                    622:     fatal('500 Internal Error',
                    623:           'You cannot download the top level directory.');
                    624:   }
                    625:
3.138     scop      626:   my $tmpexportdir;
                    627:   eval {
                    628:     local $SIG{__DIE__};
3.171     scop      629:     # Don't use the CLEANUP argument to tempdir() here, since we might be under
                    630:     # mod_perl (the process runs for a long time), unlink explicitly later.
                    631:     $tmpexportdir = tempdir('.cvsweb.XXXXXXXX', TMPDIR => 1);
3.138     scop      632:   };
                    633:   if ($@) {
                    634:     fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
                    635:   }
3.120     scop      636:
                    637:   my @fatal;
                    638:
                    639:   my $tag =
                    640:     (exists $input{only_with_tag} && length $input{only_with_tag})
                    641:     ? $input{only_with_tag}
                    642:     : 'HEAD';
                    643:
                    644:   $tag = 'HEAD' if $tag eq 'MAIN';
                    645:
                    646:   if (system($CMD{cvs},
                    647:              @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag, '-d',
3.165     scop      648:              catdir($tmpexportdir, $basedir), $module))
3.120     scop      649:   {
3.141     scop      650:     @fatal = ('500 Internal Error', 'cvs export failure: %s: %s', $!, $module);
3.120     scop      651:   } else {
                    652:     $| = 1;    # Essential to get the buffering right.
                    653:
                    654:     if ($ext eq '.tar.gz') {
                    655:       print "Content-Type: application/x-gzip\r\n\r\n";
                    656:
                    657:       system("$CMD{tar} @tar_options -cf - -C $tmpexportdir $basedir | $CMD{gzip} @gzip_options -c")
                    658:         and @fatal =
                    659:           ('500 Internal Error', 'tar zc failure: %s: %s', $!, $basedir);
                    660:     } elsif ($ext eq '.zip' && $CMD{zip}) {
                    661:       print "Content-Type: application/zip\r\n\r\n";
                    662:
                    663:       system("cd $tmpexportdir && $CMD{zip} @zip_options -r - $basedir")
                    664:         and @fatal =
                    665:           ('500 Internal Error', 'zip failure: %s: %s', $!, $basedir);
                    666:     } else {
                    667:       @fatal = ('500 Internal Error', 'unsupported file type');
                    668:     }
                    669:   }
3.46      knu       670:
3.171     scop      671:   # Clean up.
                    672:   rmtree($tmpexportdir);
3.46      knu       673:
3.120     scop      674:   &fatal(@fatal) if @fatal;
3.46      knu       675:
3.120     scop      676:   exit;
3.46      knu       677: }
                    678:
3.1       knu       679: ##############################
                    680: # View a directory
                    681: ###############################
3.46      knu       682: if (-d $fullname) {
3.120     scop      683:   my $dh = do { local (*DH); };
                    684:   opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
                    685:   my @dir = readdir($dh);
                    686:   closedir($dh);
                    687:   my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    688:     if ($show_subdir_lastmod);
3.150     scop      689:   my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
3.120     scop      690:
                    691:   if ($where eq '/') {
                    692:     html_header($defaulttitle);
                    693:     $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
                    694:     print $long_intro;
                    695:   } else {
                    696:     html_header($where);
                    697:     print $short_instruction;
                    698:   }
                    699:
3.165     scop      700:   if ($use_descriptions &&
                    701:       open(DESC, '<', catfile($cvsroot, 'CVSROOT', 'descriptions'))) {
3.120     scop      702:     while (<DESC>) {
                    703:       chomp;
                    704:       my ($dir, $description) = /(\S+)\s+(.*)/;
                    705:       $descriptions{$dir} = $description;
                    706:     }
                    707:     close(DESC);
                    708:   }
                    709:
                    710:   print "<p><a name=\"dirlist\"></a></p>\n";
                    711:
                    712:   # give direct access to dirs
                    713:   if ($where eq '/') {
                    714:     chooseMirror();
                    715:     chooseCVSRoot();
                    716:   } else {
                    717:     print "<p>Current directory: <b>", &clickablePath($where, 0), "</b></p>\n";
                    718:
3.153     scop      719:     print "<p>Current tag: <b>", htmlquote($input{only_with_tag}), "</b></p>\n"
3.120     scop      720:       if $input{only_with_tag};
                    721:
                    722:   }
                    723:
                    724:   print "<hr noshade>\n";
                    725:
3.131     scop      726:   my $infocols = 0;
                    727:
                    728:   print "<table class=\"dir\" width=\"100%\" cellspacing=\"1\" cellpadding=\"$tablepadding\">\n";
                    729:   $infocols++;
3.132     scop      730:   printf "<tr>\n<th class=\"dir-header%s\" colspan=\"2\">",
                    731:     $byfile ? '-sorted' : '';
3.131     scop      732:
                    733:   if ($byfile) {
                    734:     print 'File';
                    735:   } else {
                    736:     print &link('File',
                    737:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
                    738:   }
                    739:   print "</th>\n";
3.120     scop      740:
3.131     scop      741:   # Do not display the other column headers if we do not have any files
                    742:   # with revision information.
                    743:   if (scalar(%fileinfo)) {
3.120     scop      744:     $infocols++;
3.131     scop      745:     printf '<th class="dir-header%s">', $byrev ? '-sorted' : '';
3.120     scop      746:
3.131     scop      747:     if ($byrev) {
                    748:       print 'Rev.';
3.120     scop      749:     } else {
3.131     scop      750:       print &link('Rev.',
                    751:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
3.120     scop      752:     }
                    753:     print "</th>\n";
3.131     scop      754:     $infocols++;
                    755:     printf '<th class="dir-header%s">', $bydate ? '-sorted' : '';
3.120     scop      756:
3.131     scop      757:     if ($bydate) {
                    758:       print 'Age';
                    759:     } else {
                    760:       print &link('Age',
                    761:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
                    762:     }
                    763:     print "</th>\n";
3.120     scop      764:
3.131     scop      765:     if ($show_author) {
3.120     scop      766:       $infocols++;
3.131     scop      767:       printf '<th class="dir-header%s">', $byauthor ? '-sorted' : '';
3.120     scop      768:
3.131     scop      769:       if ($byauthor) {
                    770:         print 'Author';
3.120     scop      771:       } else {
3.131     scop      772:         print
                    773:           &link('Author',
                    774:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
3.120     scop      775:       }
                    776:       print "</th>\n";
3.131     scop      777:     }
                    778:     $infocols++;
                    779:     printf '<th class="dir-header%s">', $bylog ? '-sorted' : '';
3.120     scop      780:
3.131     scop      781:     if ($bylog) {
                    782:       print 'Last log entry';
                    783:     } else {
                    784:       print &link('Last log entry',
                    785:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
3.120     scop      786:     }
3.131     scop      787:     print "</th>\n";
                    788:   } elsif ($use_descriptions) {
                    789:     print "<th class=\"dir-header\">Description</th>\n";
                    790:     $infocols++;
3.120     scop      791:   }
3.131     scop      792:   print "</tr>\n";
                    793:
3.120     scop      794:   my $dirrow = 0;
                    795:
                    796:   my $i;
                    797:   lookingforattic:
                    798:   for ($i = 0; $i <= $#dir; $i++) {
                    799:     if ($dir[$i] eq "Attic") {
                    800:       last lookingforattic;
                    801:     }
                    802:   }
                    803:
                    804:   if (!$input{'hideattic'}
                    805:       && ($i <= $#dir)
                    806:       && opendir($dh, $fullname . '/Attic'))
                    807:   {
                    808:     splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
                    809:     closedir($dh);
                    810:   }
                    811:
                    812:   my $hideAtticToggleLink =
                    813:     $input{'hideattic'}
                    814:     ? ''
                    815:     : &link('[Hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    816:
                    817:   # Sort without the Attic/ pathname.
                    818:   # place directories first
                    819:
                    820:   my $attic;
                    821:   my $url;
                    822:   my $fileurl;
                    823:   my $filesexists;
                    824:   my $filesfound;
                    825:
                    826:   foreach my $file (sort { &fileSortCmp } @dir) {
                    827:
                    828:     next if ($file eq '.');
                    829:
                    830:     # ignore CVS lock and stale NFS files
                    831:     next if ($file =~ /^\#cvs\.|^,|^\.nfs/); # \# for XEmacs cperl-mode...
                    832:
                    833:     # Check whether to show the CVSROOT path
                    834:     next if ($input{'hidecvsroot'} && $file eq 'CVSROOT');
                    835:
                    836:     # Check whether the module is in the restricted list
                    837:     next if ($file && &forbidden_module($file));
                    838:
3.150     scop      839:     # Is it a directory?
                    840:     my $isdir = -d "$fullname/$file";
                    841:
                    842:     # Ignore non-readable files and directories?
                    843:     next if ($input{'hidenonreadable'} && (! -r _ || ($isdir && ! -x _)));
3.120     scop      844:
                    845:     if ($file =~ s|^Attic/||) {
3.131     scop      846:       $attic = ' (in&nbsp;the&nbsp;Attic)&nbsp;' . $hideAtticToggleLink;
3.120     scop      847:     } else {
                    848:       $attic = '';
                    849:     }
                    850:
3.150     scop      851:     if ($file eq '..' || $isdir) {
3.120     scop      852:       next if ($file eq '..' && $where eq '/');
3.152     scop      853:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    854:         @{$fileinfo{$file}} if (defined($fileinfo{$file}));
3.132     scop      855:       printf "<tr class=\"dir-row-%s\">\n<td colspan=\"2\">",
                    856:         ($dirrow % 2) ? 'even' : 'odd';
3.120     scop      857:
                    858:       if ($file eq '..') {
                    859:         $url = "../$query";
                    860:         if ($nofilelinks) {
                    861:           print $backicon;
                    862:         } else {
                    863:           print &link($backicon, $url);
                    864:         }
                    865:         print '&nbsp;', &link("Parent Directory", $url);
                    866:       } else {
                    867:         $url = './' . urlencode($file) . "/$query";
3.136     scop      868:         print '<a name="', hrefquote($file), '"></a>';
3.120     scop      869:
                    870:         if ($nofilelinks) {
                    871:           print $diricon;
                    872:         } else {
                    873:           print &link($diricon, $url);
                    874:         }
3.136     scop      875:         print '&nbsp;', &link(htmlquote("$file/"), $url), $attic;
3.120     scop      876:
                    877:         if ($file eq "Attic") {
                    878:           print "&nbsp; ";
                    879:           print &link('[Don\'t hide]',
                    880:                       sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    881:         }
                    882:       }
                    883:
                    884:       # Show last change in dir
                    885:       if ($filename) {
3.131     scop      886:         print "</td>\n<td>&nbsp;</td>\n<td>&nbsp;";
                    887:
3.120     scop      888:         if ($date) {
                    889:           print " <i>", readableTime(time() - $date, 0), "</i>";
                    890:         }
                    891:
                    892:         if ($show_author) {
3.136     scop      893:           print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      894:         }
3.131     scop      895:         print "</td>\n<td>&nbsp;";
3.120     scop      896:         $filename =~ s%^[^/]+/%%;
3.136     scop      897:         print htmlquote($filename), '/', $rev, '<br>';
3.120     scop      898:
                    899:         if ($log) {
                    900:           print '&nbsp;<span style="font-size: smaller">',
                    901:             &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    902:           print '...' if (length($log) > 80);
                    903:           print '</span>';
                    904:         }
                    905:       } else {
                    906:         my $dwhere = ($where ne '/' ? $where : '') . $file;
                    907:
                    908:         if ($use_descriptions && defined $descriptions{$dwhere}) {
3.131     scop      909:           print '<td colspan="', ($infocols - 1), '">&nbsp;';
3.120     scop      910:           print $descriptions{$dwhere};
                    911:
3.131     scop      912:         } elsif ($infocols > 1) {
3.120     scop      913:
                    914:           # close the row with the appropriate number of
                    915:           # columns, so that the vertical seperators are visible
                    916:           my ($cols) = $infocols;
                    917:           while ($cols > 1) {
                    918:             print "</td>\n<td>&nbsp;";
                    919:             $cols--;
                    920:           }
                    921:         }
                    922:       }
                    923:
3.131     scop      924:       print "</td>\n</tr>\n";
3.120     scop      925:       $dirrow++;
3.131     scop      926:
3.120     scop      927:     } elsif ($file =~ s/,v$//) {
                    928:
                    929:       # Skip forbidden files now so we'll give no hint
                    930:       # about their existence.  This should probably have
                    931:       # been done earlier, but it's straightforward here.
                    932:       next if forbidden_file("$fullname/$file");
                    933:
                    934:       $fileurl   = ($attic ? 'Attic/' : '') . urlencode($file);
                    935:       $url       = './' . $fileurl . $query;
                    936:       $filesexists++;
                    937:       next if (!defined($fileinfo{$file}));
3.152     scop      938:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                    939:         @{$fileinfo{$file}};
3.156     scop      940:       my $isbinary = $keywordsubst eq 'b' ? 1 : 0;
3.120     scop      941:       $filesfound++;
3.156     scop      942:
3.132     scop      943:       printf "<tr class=\"dir-row-%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
                    944:       printf '<td%s>', $allow_cvsgraph ? '' : ' colspan="2"';
3.120     scop      945:
3.156     scop      946:       my $icon = $isbinary ? $binfileicon : $fileicon;
3.120     scop      947:       if ($nofilelinks) {
3.152     scop      948:         print $icon;
3.120     scop      949:       } else {
3.152     scop      950:         print &link($icon, $url);
3.120     scop      951:       }
                    952:       print '&nbsp;', &link(htmlquote($file), $url), $attic;
3.132     scop      953:       if ($allow_cvsgraph) {
3.170     scop      954:         print '</td><td>', &graph_link($fileurl);
3.132     scop      955:       }
                    956:       print "</td>\n<td width=\"30\">&nbsp;";
3.120     scop      957:       download_link($fileurl, $rev, $rev,
3.156     scop      958:                     viewable(getMimeType($file, $isbinary)) ?
                    959:                     'text/x-cvsweb-markup' : undef);
3.131     scop      960:       print "</td>\n<td>&nbsp;";
3.120     scop      961:
                    962:       if ($date) {
                    963:         print " <i>", readableTime(time() - $date, 0), "</i>";
                    964:       }
                    965:       if ($show_author) {
3.136     scop      966:         print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      967:       }
3.131     scop      968:       print "</td>\n<td>&nbsp;";
3.120     scop      969:
                    970:       if ($log) {
                    971:         print ' <span style="font-size: smaller">',
                    972:           &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    973:         print '...' if (length $log > 80);
                    974:         print '</span>';
                    975:       }
3.131     scop      976:       print "</td>\n</tr>";
3.120     scop      977:       $dirrow++;
                    978:     }
                    979:     print "\n";
                    980:   }
                    981:
3.131     scop      982:   print "</table>\n";
3.120     scop      983:
3.150     scop      984:   if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
                    985:     printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
                    986: <p>
                    987:  <b>NOTE:</b> The following %d unreadable files were ignored:<br>
                    988:  <em>%s</em>
                    989: </p>
                    990: EOF
                    991:   }
                    992:
3.120     scop      993:   if ($filesexists && !$filesfound) {
3.150     scop      994:     my $currtag = defined($input{only_with_tag}) ?
                    995:       sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
                    996:     printf(<<EOF, $filesexists, $currtag);
                    997: <p>
                    998:  <b>NOTE:</b> There are %d files, but none matches the current tag%s.
                    999: </p>
                   1000: EOF
3.120     scop     1001:   }
                   1002:
                   1003:   if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                   1004:     %tags = %alltags;
                   1005:   }
                   1006:
                   1007:   if (scalar %tags
                   1008:       || $input{only_with_tag}
                   1009:       || $edit_option_form
                   1010:       || defined($input{"options"}))
                   1011:   {
                   1012:     print "<hr size=\"1\" noshade>\n";
                   1013:   }
                   1014:
                   1015:   if (scalar %tags || $input{only_with_tag}) {
                   1016:     print "<form method=\"get\" action=\"./\">\n";
                   1017:     foreach my $var (@stickyvars) {
3.154     scop     1018:       printf("<input type=\"hidden\" name=\"$var\" value=\"%s\">\n",
                   1019:              htmlquote($input{$var}))
3.120     scop     1020:         if (defined($input{$var})
                   1021:             && (!defined($DEFAULTVALUE{$var})
                   1022:                 || $input{$var} ne $DEFAULTVALUE{$var})
                   1023:             && $input{$var} ne ""
                   1024:             && $var ne 'only_with_tag');
                   1025:     }
                   1026:     print "<p><label for=\"only_with_tag\" accesskey=\"T\">";
                   1027:     print "Show only files with tag:</label>\n";
                   1028:     print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
                   1029:     print " onchange=\"this.form.submit()\"" if $use_java_script;
                   1030:     print ">";
                   1031:     print "<option value=\"\">All tags / default branch</option>\n";
                   1032:
                   1033:     foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.136     scop     1034:       my $selected =
                   1035:         defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
                   1036:       printf("<option%s>%s</option>\n",
                   1037:              $selected ? ' selected' : '',
                   1038:              htmlquote($tag));
3.120     scop     1039:     }
                   1040:     print "</select>\n";
                   1041:     print " <label for=\"path\" accesskey=\"P\">";
                   1042:     print "Module path or alias:</label>\n";
                   1043:     printf "<input type=\"text\" id=\"path\" name=\"path\" value=\"%s\" size=\"15\">\n", htmlquote($where);
                   1044:     print "<input type=\"submit\" value=\"Go\" accesskey=\"G\"></p>\n";
                   1045:     print "</form>\n";
                   1046:   }
                   1047:
                   1048:   if ($allow_tar) {
                   1049:     my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
                   1050:
                   1051:     if (defined($basefile) && $basefile ne '') {
                   1052:       print "<hr noshade>\n",
                   1053:         "<div align=\"center\">Download this directory in ";
                   1054:
                   1055:       # Mangle the filename so browsers show a reasonable
                   1056:       # filename to download.
                   1057:       print
                   1058:         &link("tarball",
                   1059:               "./$basefile.tar.gz$query" . ($query ? "&" : "?") . "tarball=1");
                   1060:       if ($CMD{zip}) {
                   1061:         print " or ",
                   1062:           &link("zip archive",
                   1063:                 "./$basefile.zip$query" . ($query ? "&" : "?") . "tarball=1");
                   1064:       }
                   1065:       print "</div>\n";
                   1066:     }
                   1067:   }
                   1068:
                   1069:   if ($edit_option_form || defined($input{"options"})) {
                   1070:
                   1071:     my $formwhere = $scriptwhere;
                   1072:     $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                   1073:
3.149     scop     1074:     print <<EOF;
                   1075: <form method="get" action="${formwhere}">
                   1076: <input type="hidden" name="copt" value="1">
                   1077: EOF
3.120     scop     1078:     if ($cvstree ne $cvstreedefault) {
                   1079:       print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\">\n";
                   1080:     }
3.149     scop     1081:     print <<EOF;
                   1082: <center>
                   1083: <table cellpadding="0" cellspacing="0">
                   1084: <tr class="dir-header">
                   1085:  <th style="text-align: center">Preferences</th>
                   1086: </tr>
                   1087: <tr>
                   1088: <td>
                   1089: <label for="sortby" accesskey="F">Sort files by:
                   1090: <select id="sortby" name="sortby">
                   1091: <option value="">File</option>
                   1092: EOF
3.120     scop     1093:     print "<option", $bydate ? " selected" : "",
                   1094:       " value=\"date\">Age</option>\n";
                   1095:     print "<option", $byauthor ? " selected" : "",
                   1096:       " value=\"author\">Author</option>\n"
3.140     scop     1097:         if $show_author;
3.120     scop     1098:     print "<option", $byrev ? " selected" : "",
                   1099:       " value=\"rev\">Revision</option>\n";
                   1100:     print "<option", $bylog ? " selected" : "",
                   1101:       " value=\"log\">Log message</option>\n";
3.140     scop     1102:     print "</select></label>,\n";
                   1103:     print '<label for="ignorecase" accesskey="I">case-insensitive: ';
                   1104:     print "<input id=\"ignorecase\" name=\"ignorecase\" type=\"checkbox\"",
                   1105:       $input{'ignorecase'} ? " checked" : "", " value=\"1\"></label>\n";
                   1106:     print "<label for=\"logsort\" accesskey=\"L\">Sort log by: ";
3.120     scop     1107:     printLogSortSelect(0);
3.140     scop     1108:     print "</label></td>\n</tr>\n";
                   1109:     print "<tr>\n<td><label for=\"f\" accesskey=\"D\">Diff format: ";
3.120     scop     1110:     printDiffSelect(0);
3.140     scop     1111:     print '</label> ';
                   1112:     print '<label for="hideattic" accesskey="A">Hide files in Attic: ';
3.120     scop     1113:     print "<input id=\"hideattic\" name=\"hideattic\" type=\"checkbox\"",
3.149     scop     1114:       $input{'hideattic'} ? ' checked' : '',
                   1115:         " value=\"1\"></label></td>\n</tr>\n";
                   1116:     print "<tr>\n<td><label for=\"ln\" accesskey=\"N\">Show line numbers: ";
                   1117:     print "<input id=\"ln\" name=\"ln\" type=\"checkbox\"",
                   1118:       $input{ln} ? ' checked' : '', " value=\"1\"></label></td>\n</tr>\n";
                   1119:     print <<EOF;
                   1120: <tr>
                   1121:  <td align="center">
                   1122:   <input type="submit" value="Change Options" accesskey="C">
                   1123:  </td>
                   1124: </tr>
                   1125: </table>
                   1126: </center>
                   1127: </form>
                   1128: EOF
3.120     scop     1129:   }
                   1130:   html_footer();
3.80      knu      1131: }
3.1       knu      1132:
                   1133: ###############################
                   1134: # View Files
                   1135: ###############################
3.80      knu      1136: elsif (-f $fullname . ',v') {
3.114     scop     1137:
3.120     scop     1138:   if (forbidden_file($fullname)) {
                   1139:     fatal('403 Forbidden',
                   1140:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   1141:     return;
                   1142:   }
                   1143:
                   1144:   if (defined($input{'rev'}) || $doCheckout) {
                   1145:     &doCheckout($fullname, $input{'rev'});
                   1146:     gzipclose();
                   1147:     exit;
                   1148:   }
                   1149:
                   1150:   if (defined($input{'annotate'}) && $allow_annotate) {
                   1151:     &doAnnotate($input{'annotate'});
                   1152:     gzipclose();
                   1153:     exit;
                   1154:   }
                   1155:
                   1156:   if (defined($input{'r1'}) && defined($input{'r2'})) {
                   1157:     &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1158:             $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1159:     gzipclose();
                   1160:     exit;
                   1161:   }
3.132     scop     1162:
3.170     scop     1163:   if ($allow_cvsgraph && $input{graph}) {
                   1164:     if ($input{makeimage}) {
                   1165:       doGraph();
3.132     scop     1166:     } else {
3.170     scop     1167:       doGraphView();
3.132     scop     1168:     }
                   1169:     gzipclose();
                   1170:     exit;
                   1171:   }
                   1172:
3.120     scop     1173:   &doLog($fullname);
                   1174:
                   1175:   ##############################
                   1176:   # View Diff
                   1177:   ##############################
                   1178: } elsif ($fullname =~ s/\.diff$//
                   1179:          && -f $fullname . ",v"
                   1180:          && $input{'r1'}
                   1181:          && $input{'r2'})
                   1182: {
                   1183:
                   1184:   # $where-diff-removal if 'cvs rdiff' is used
                   1185:   # .. but 'cvs rdiff'doesn't support some options
                   1186:   # rcsdiff does (-w and -p), so it is disabled
                   1187:   # $where =~ s/\.diff$//;
                   1188:
                   1189:   # Allow diffs using the ".diff" extension
                   1190:   # so that browsers that default to the URL
                   1191:   # for a save filename don't save diff's as
                   1192:   # e.g. foo.c
                   1193:   &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1194:           $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1195:   gzipclose();
                   1196:   exit;
                   1197: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1|
                   1198:   && -f $newname . ",v")
                   1199: {
                   1200:
                   1201:   # The file has been removed and is in the Attic.
                   1202:   # Send a redirect pointing to the file in the Attic.
                   1203:   (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                   1204:   if ($ENV{QUERY_STRING} ne "") {
                   1205:     redirect("${newplace}?$ENV{QUERY_STRING}");
                   1206:   } else {
                   1207:     redirect($newplace);
                   1208:   }
                   1209:   exit;
3.80      knu      1210: } elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
3.120     scop     1211:   http_header("text/plain");
                   1212:   print "You matched the following files:\n";
                   1213:   print join ("\n", @files);
3.80      knu      1214:
3.120     scop     1215:   # Find the tags from each file
                   1216:   # Display a form offering diffs between said tags
3.80      knu      1217: } else {
3.120     scop     1218:   my $fh = do { local (*FH); };
                   1219:   my ($xtra, $module);
3.80      knu      1220:
3.120     scop     1221:   # Assume it's a module name with a potential path following it.
                   1222:   $xtra = (($module = $where) =~ s|/.*||) ? $& : '';
3.80      knu      1223:
3.120     scop     1224:   # Is there an indexed version of modules?
                   1225:   if (open($fh, "< $cvsroot/CVSROOT/modules")) {
                   1226:     while (<$fh>) {
                   1227:       if (/^(\S+)\s+(\S+)/o
                   1228:           && $module eq $1
                   1229:           && -d "$cvsroot/$2"
                   1230:           && $module ne $2)
                   1231:       {
                   1232:         redirect("$scriptname/$2$xtra$query");
                   1233:       }
                   1234:     }
                   1235:   }
                   1236:   fatal("404 Not Found", '%s: no such file or directory', $where);
3.80      knu      1237: }
3.23      knu      1238:
3.25      knu      1239: gzipclose();
3.80      knu      1240:
3.1       knu      1241: ## End MAIN
                   1242:
3.120     scop     1243: sub printDiffSelect($)
                   1244: {
                   1245:   my ($use_java_script) = @_;
                   1246:   my $f = $input{'f'};
                   1247:
                   1248:   print '<select id="f" name="f"';
                   1249:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1250:   print ">\n";
                   1251:
                   1252:   local $_;
                   1253:   for (@DIFFTYPES) {
                   1254:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1255:            $_, $f eq $_ ? ' selected' : '',
                   1256:            "\u$DIFFTYPES{$_}{'descr'}");
                   1257:   }
                   1258:
                   1259:   print "</select>";
                   1260: }
                   1261:
3.168     scop     1262: sub printDiffSelectStickyVars()
                   1263: {
                   1264:   while (my ($key, $val) = each %input) {
                   1265:     next if ($key eq 'f');
                   1266:     next if (defined($DEFAULTVALUE{$key}) && $DEFAULTVALUE{$key} eq $val);
                   1267:     print "<input type=\"hidden\" name=\"", urlencode($key), "\" value=\"",
                   1268:       urlencode($val), "\">\n";
                   1269:   }
                   1270: }
                   1271:
3.120     scop     1272: sub printLogSortSelect($)
                   1273: {
                   1274:   my ($use_java_script) = @_;
                   1275:
                   1276:   print '<select id="logsort" name="logsort"';
                   1277:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1278:   print ">\n";
                   1279:
                   1280:   local $_;
                   1281:   for (@LOGSORTKEYS) {
                   1282:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1283:            $_, $logsort eq $_ ? ' selected' : '',
                   1284:            "\u$LOGSORTKEYS{$_}{'descr'}");
                   1285:   }
                   1286:
                   1287:   print "</select>";
                   1288: }
                   1289:
                   1290: sub findLastModifiedSubdirs(@)
                   1291: {
                   1292:   my (@dirs) = @_;
                   1293:   my ($dirname, @files);
                   1294:
                   1295:   foreach $dirname (@dirs) {
                   1296:     next if ($dirname eq ".");
                   1297:     next if ($dirname eq "..");
                   1298:     my ($dir) = "$fullname/$dirname";
                   1299:     next if (!-d $dir);
                   1300:
                   1301:     my ($lastmod)     = undef;
                   1302:     my ($lastmodtime) = undef;
                   1303:     my $dh = do { local (*DH); };
                   1304:
                   1305:     opendir($dh, $dir) or next;
                   1306:     my (@filenames) = readdir($dh);
                   1307:     closedir($dh);
                   1308:
                   1309:     foreach my $filename (@filenames) {
                   1310:       $filename = "$dirname/$filename";
                   1311:       my ($file) = "$fullname/$filename";
                   1312:       next if ($filename !~ /,v$/ || !-f $file);
                   1313:
                   1314:       # Skip forbidden files.
                   1315:       (my $f = $file) =~ s/,v$//;
                   1316:       next if forbidden_file($f);
                   1317:
                   1318:       $filename =~ s/,v$//;
                   1319:       my $modtime = -M $file;
                   1320:
                   1321:       if (!defined($lastmod) || $modtime < $lastmodtime) {
                   1322:         $lastmod     = $filename;
                   1323:         $lastmodtime = $modtime;
                   1324:       }
                   1325:     }
                   1326:     push (@files, $lastmod) if (defined($lastmod));
                   1327:   }
                   1328:   return @files;
                   1329: }
                   1330:
                   1331: sub htmlify_sub(&$)
                   1332: {
                   1333:   (my $proc, local $_) = @_;
                   1334:   my @a = split (m`(<a [^>]+>[^<]*</a>)`i);
                   1335:   my $linked;
                   1336:   my $result = '';
                   1337:
                   1338:   while (($_, $linked) = splice(@a, 0, 2)) {
                   1339:     &$proc();
                   1340:     $result .= $_      if defined($_);
                   1341:     $result .= $linked if defined($linked);
                   1342:   }
                   1343:
                   1344:   $result;
                   1345: }
                   1346:
                   1347: sub htmlify($;$)
                   1348: {
                   1349:   (local $_, my $extra) = @_;
                   1350:
                   1351:   $_ = htmlquote($_);
                   1352:
                   1353:   # get URL's as link
                   1354:   s{
3.130     scop     1355:     ((https?|ftp)://.+?)([\s\']|&(quot|[lg]t);)
3.120     scop     1356:    }{
3.130     scop     1357:      &link($1, htmlunquote($1)) . $3
3.120     scop     1358:    }egx;
                   1359:
                   1360:   # get e-mails as link
                   1361:   $_ = htmlify_sub {
                   1362:     s<
                   1363:       [\w+=\-.!]+@[\w\-]+(\.[\w\-]+)+
                   1364:      ><
                   1365:        &link($&, "mailto:$&")
                   1366:      >egix;
                   1367:   } $_;
                   1368:
                   1369:   if ($extra) {
                   1370:
                   1371:     # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
                   1372:     if (defined($prcgi) && defined($re_prkeyword)) {
                   1373:       my $prev;
                   1374:
                   1375:       do {
                   1376:         $prev = $_;
                   1377:
                   1378:         $_ = htmlify_sub {
                   1379:           s{
                   1380:             (\b$re_prkeyword[:\#]?\s*
                   1381:              (?:
                   1382:               \#?
                   1383:               \d+[,\s]\s*
                   1384:              )*
                   1385:              \#?)
                   1386:             (\d+)\b
                   1387:            }{
                   1388:              $1 . &link($2, sprintf($prcgi, $2))
                   1389:            }egix;
                   1390:         } $_;
                   1391:       } while ($_ ne $prev);
                   1392:
                   1393:       if (defined($re_prcategories)) {
                   1394:         $_ = htmlify_sub {
                   1395:           s{
                   1396:             (\b$re_prcategories/(\d+)\b)
                   1397:            }{
                   1398:              &link($1, sprintf($prcgi, $2))
                   1399:            }egox;
                   1400:         } $_;
                   1401:       }
                   1402:     }
                   1403:
                   1404:     # get manpage specs as link: "foo.1" "foo(1)"
                   1405:     if (defined($mancgi)) {
                   1406:       $_ = htmlify_sub {
                   1407:         s{
3.143     knu      1408:           (
                   1409:            \b ( \w[\w+\-.]* (?: ::\w[\w+\-.]*)* )
3.120     scop     1410:            (?:
3.143     knu      1411:             \( ([0-9n]) \) \B
3.120     scop     1412:             |
3.143     knu      1413:             \. ([0-9n]) \b
3.120     scop     1414:            )
                   1415:           )
                   1416:          }{
3.149     scop     1417:             my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
                   1418:             ($name =~ /[A-Za-z]/ && $name !~ /\.(:|$)/)
                   1419:              ? &link($text, sprintf($mancgi, $section, $name))
                   1420:               : $text;
3.120     scop     1421:          }egx;
                   1422:       } $_;
                   1423:     }
                   1424:   }
                   1425:
                   1426:   $_;
                   1427: }
                   1428:
                   1429: sub spacedHtmlText($;$)
                   1430: {
                   1431:   local $_ = $_[0];
                   1432:   my $ts = $_[1] || $tabstop;
                   1433:
                   1434:   # Cut trailing spaces and tabs
                   1435:   s/[ \t]+$//;
                   1436:
                   1437:   if (defined($ts)) {
                   1438:
                   1439:     # Expand tabs
                   1440:     1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e;
                   1441:   }
                   1442:
                   1443:   # replace <tab> and <space> (\001 is to protect us from htmlify)
                   1444:   # gzip can make excellent use of this repeating pattern :-)
                   1445:   if ($hr_breakable) {
                   1446:
                   1447:     # make every other space 'breakable'
                   1448:     s/  / \001nbsp;/g;    # 2 * <space>
                   1449:                           # leave single space as it is
                   1450:   } else {
                   1451:     s/ /\001nbsp;/g;
                   1452:   }
                   1453:
                   1454:   $_ = htmlify($_, $allow_source_extra);
                   1455:
                   1456:   # unescape
                   1457:   y/\001/&/;
                   1458:
                   1459:   return $_;
                   1460: }
                   1461:
                   1462: # Note that this doesn't htmlquote the first argument...
                   1463: sub link($$)
                   1464: {
                   1465:   my ($name, $url) = @_;
                   1466:
                   1467:   $url =~ s/:/sprintf("%%%02x", ord($&))/eg
                   1468:     if $url =~ /^[^a-z]/;    # relative
                   1469:
                   1470:   sprintf '<a href="%s">%s</a>', hrefquote($url), $name;
                   1471: }
                   1472:
                   1473: sub revcmp($$)
                   1474: {
                   1475:   my ($rev1, $rev2) = @_;
                   1476:
                   1477:   # make no comparison for a tag or a branch
                   1478:   return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1479:
                   1480:   my (@r1) = split (/\./, $rev1);
                   1481:   my (@r2) = split (/\./, $rev2);
                   1482:   my ($a, $b);
                   1483:
                   1484:   while (($a = shift (@r1)) && ($b = shift (@r2))) {
                   1485:     if ($a != $b) {
                   1486:       return $a <=> $b;
                   1487:     }
                   1488:   }
                   1489:   if (@r1) { return  1; }
                   1490:   if (@r2) { return -1; }
                   1491:   return 0;
                   1492: }
                   1493:
                   1494: sub fatal($$@)
                   1495: {
                   1496:   my ($errcode, $format, @args) = @_;
                   1497:   if ($is_mod_perl) {
                   1498:     Apache->request->status((split (/ /, $errcode))[0]);
                   1499:   } else {
                   1500:     print "Status: $errcode\r\n";
                   1501:   }
3.131     scop     1502:   html_header('Error');
3.120     scop     1503:   print "<p>Error: ", sprintf($format, map(htmlquote($_), @args)), "</p>\n";
                   1504:   html_footer();
                   1505:   exit(1);
                   1506: }
                   1507:
                   1508: sub redirect($)
                   1509: {
                   1510:   my ($url) = @_;
                   1511:   if ($is_mod_perl) {
                   1512:     Apache->request->status(301);
                   1513:     Apache->request->header_out(Location => $url);
                   1514:   } else {
                   1515:     print "Status: 301 Moved\r\n";
                   1516:     print "Location: $url\r\n";
                   1517:   }
3.131     scop     1518:   html_header('Moved');
3.120     scop     1519:   print "<p>This document is located ", &link('here', $url), "</p>\n";
                   1520:   html_footer();
                   1521:   exit(1);
                   1522: }
                   1523:
                   1524: sub safeglob($)
                   1525: {
                   1526:   my ($filename) = @_;
                   1527:   my ($dirname);
                   1528:   my (@results);
                   1529:   my $dh = do { local (*DH); };
                   1530:
                   1531:   ($dirname = $filename) =~ s|/[^/]+$||;
                   1532:   $filename =~ s|.*/||;
                   1533:
                   1534:   if (opendir($dh, $dirname)) {
                   1535:     my $glob = $filename;
                   1536:     my $t;
                   1537:
3.149     scop     1538:     #   transform filename from glob to regex.  Deal with:
                   1539:     #   [, {, ?, * as glob chars
                   1540:     #   make sure to escape all other regex chars
3.120     scop     1541:     $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1542:     $glob =~ s/\*/.*/g;
                   1543:     $glob =~ s/\?/./g;
                   1544:     $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
                   1545:     foreach (readdir($dh)) {
                   1546:
                   1547:       if (/^${glob}$/) {
                   1548:         push (@results, "$dirname/" . $_);
                   1549:       }
                   1550:     }
                   1551:     closedir($dh);
                   1552:   }
                   1553:
                   1554:   @results;
                   1555: }
                   1556:
3.160     scop     1557:
3.120     scop     1558: sub search_path($)
                   1559: {
                   1560:   my ($command) = @_;
3.160     scop     1561:   for my $d (split (/:/, $command_path)) {
3.120     scop     1562:     return "$d/$command" if -x "$d/$command";
                   1563:   }
                   1564:   return '';
                   1565: }
                   1566:
3.156     scop     1567:
                   1568: sub getMimeType($;$)
3.120     scop     1569: {
3.156     scop     1570:   my ($fullname, $binary) = @_;
                   1571:   $binary = ($keywordsubstitution && $keywordsubstitution =~ /b/)
                   1572:     unless defined($binary);
                   1573:
                   1574:   (my $suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1575:
                   1576:   my $mimetype = $MTYPES{$suffix};
                   1577:   $mimetype  ||= $MimeTypes->mimeTypeOf($fullname) if defined($MimeTypes);
                   1578:
                   1579:   if (!$mimetype && $suffix ne '*' && -f $mime_types && -r _) {
                   1580:     my $fh = do { local (*FH); };
                   1581:     if (open($fh, $mime_types)) {
                   1582:       my $re = sprintf('^\s*(\S+\/\S+)\s.+\b%s\b', quotemeta($suffix));
                   1583:       while (my $line = <$fh>) {
                   1584:         if ($line =~ $re) {
                   1585:           $mimetype = $1;
                   1586:           $MTYPES{$suffix} = $mimetype;
                   1587:           last;
                   1588:         }
3.120     scop     1589:       }
3.156     scop     1590:       close($fh);
                   1591:     } else {
                   1592:       warn("Can't open MIME types file $mime_types for reading: $!");
3.120     scop     1593:     }
                   1594:   }
                   1595:
3.156     scop     1596:   $mimetype ||= $MTYPES{'*'};
                   1597:   $mimetype ||= $binary ? 'application/octet-stream' : 'text/plain';
3.120     scop     1598:   return $mimetype;
3.1       knu      1599: }
                   1600:
3.156     scop     1601:
3.1       knu      1602: ###############################
3.24      knu      1603: # read first lines like head(1)
                   1604: ###############################
3.120     scop     1605: sub head($;$)
                   1606: {
                   1607:   my $fh        = $_[0];
                   1608:   my $linecount = $_[1] || 10;
3.24      knu      1609:
3.120     scop     1610:   my @buf;
                   1611:
                   1612:   if ($linecount > 0) {
                   1613:     my $i;
                   1614:     for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1615:       push @buf, scalar <$fh>;
                   1616:     }
                   1617:   } else {
                   1618:     @buf = <$fh>;
                   1619:   }
                   1620:
                   1621:   @buf;
3.24      knu      1622: }
                   1623:
                   1624: ###############################
                   1625: # scan vim and Emacs directives
                   1626: ###############################
3.120     scop     1627: sub scan_directives(@)
                   1628: {
                   1629:   my $ts = undef;
3.24      knu      1630:
3.120     scop     1631:   for (@_) {
                   1632:     $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1633:   }
3.24      knu      1634:
3.120     scop     1635:   ('tabstop' => $ts);
3.24      knu      1636: }
                   1637:
3.120     scop     1638: sub openOutputFilter()
                   1639: {
                   1640:   return if !defined($output_filter) || $output_filter eq '';
3.86      knu      1641:
3.120     scop     1642:   open(STDOUT, "|-") and return;
3.86      knu      1643:
3.120     scop     1644:   # child of child
3.165     scop     1645:   open(STDERR, '>', devnull());
3.120     scop     1646:   exec($output_filter) or exit -1;
3.86      knu      1647: }
                   1648:
3.24      knu      1649: ###############################
3.1       knu      1650: # show Annotation
                   1651: ###############################
3.133     scop     1652: sub doAnnotate($)
3.120     scop     1653: {
                   1654:   my ($rev) = @_;
                   1655:   my ($pid);
                   1656:   my ($pathname, $filename);
                   1657:   my $reader = do { local (*FH); };
                   1658:   my $writer = do { local (*FH); };
                   1659:
                   1660:   # make sure the revisions are wellformed, for security
                   1661:   # reasons ..
                   1662:   if ($rev =~ /[^\w.]/) {
                   1663:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1664:   }
                   1665:
                   1666:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1667:   ($filename = $where) =~ s/^.*\///;
                   1668:
                   1669:   # this seems to be necessary
                   1670:   $| = 1;
                   1671:   $| = 0;    # Flush
                   1672:
3.126     scop     1673:   # Work around a mod_perl bug (?) in order to make open2() work.
                   1674:   # Search for "untie STDIN" in mod_perl mailing list archives for more info.
                   1675:   my $old_stdin;
                   1676:   if ($is_mod_perl && ($old_stdin = tied *STDIN)) {
                   1677:     local $^W = undef;
                   1678:     untie *STDIN;
                   1679:   }
                   1680:
3.120     scop     1681:   # this annotate version is based on the
                   1682:   # cvs annotate-demo Perl script by Cyclic Software
                   1683:   # It was written by Cyclic Software, http://www.cyclic.com/, and is in
                   1684:   # the public domain.
                   1685:   # we could abandon the use of rlog, rcsdiff and co using
                   1686:   # the cvsserver in a similiar way one day (..after rewrite)
3.128     scop     1687:   $pid = open2($reader, $writer, $CMD{cvs}, @annotate_options, 'server')
3.120     scop     1688:     or fatal("500 Internal Error",
                   1689:              'Fatal Error - unable to open cvs for annotation');
3.126     scop     1690:
                   1691:   # Re-tie STDIN if we fiddled around with it earlier, just to be sure.
                   1692:   tie(*STDIN, ref($old_stdin), $old_stdin) if ($old_stdin && !tied(*STDIN));
3.120     scop     1693:
                   1694:   # OK, first send the request to the server.  A simplified example is:
                   1695:   #     Root /home/kingdon/zwork/cvsroot
                   1696:   #     Argument foo/xx
                   1697:   #     Directory foo
                   1698:   #     /home/kingdon/zwork/cvsroot/foo
                   1699:   #     Directory .
                   1700:   #     /home/kingdon/zwork/cvsroot
                   1701:   #     annotate
                   1702:   # although as you can see there are a few more details.
                   1703:
                   1704:   print $writer "Root $cvsroot\n";
                   1705:   print $writer
                   1706:     "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1707:
                   1708:   # Don't worry about sending valid-requests, the server just needs to
                   1709:   # support "annotate" and if it doesn't, there isn't anything to be done.
                   1710:   print $writer "UseUnchanged\n";
                   1711:   print $writer "Argument -r\n";
                   1712:   print $writer "Argument $rev\n";
                   1713:   print $writer "Argument $where\n";
                   1714:
                   1715:   # The protocol requires us to fully fake a working directory (at
                   1716:   # least to the point of including the directories down to the one
                   1717:   # containing the file in question).
3.123     scop     1718:   # So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
                   1719:   my $path = '';
                   1720:   foreach my $dir (split('/', $where)) {
3.120     scop     1721:
                   1722:     if ($path eq "") {
3.123     scop     1723:       # In our example, $dir is "dir".
                   1724:       $path = $dir;
3.120     scop     1725:     } else {
                   1726:       print $writer "Directory $path\n";
                   1727:       print $writer "$cvsroot/$path\n";
                   1728:
                   1729:       # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1730:       # And the next time, "file" and "dir/sdir/file" (which then gets
                   1731:       # ignored, because we don't need to send Directory for the file).
3.123     scop     1732:       $path .= "/$dir";
3.120     scop     1733:     }
                   1734:   }
3.123     scop     1735:   undef $path;
3.120     scop     1736:
                   1737:   # And the last "Directory" before "annotate" is the top level.
                   1738:   print $writer "Directory .\n";
                   1739:   print $writer "$cvsroot\n";
                   1740:
                   1741:   print $writer "annotate\n";
                   1742:
                   1743:   # OK, we've sent our command to the server.  Thing to do is to
                   1744:   # close the writer side and get all the responses.  If "cvs server"
                   1745:   # were nicer about buffering, then we could just leave it open, I think.
                   1746:   close($writer) or die "cannot close: $!";
                   1747:
3.133     scop     1748:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
3.120     scop     1749:
3.136     scop     1750:   print '<h3 style="text-align: center">Annotation of ',
                   1751:     htmlquote("$pathname$filename"), ", revision $rev</h3>\n";
3.120     scop     1752:
                   1753:   # Ready to get the responses from the server.
                   1754:   # For example:
                   1755:   #     E Annotations for foo/xx
                   1756:   #     E ***************
                   1757:   #     M 1.3          (kingdon  06-Sep-97): hello
                   1758:   #     ok
                   1759:   my ($lineNr) = 0;
                   1760:   my ($oldLrev, $oldLusr) = ("", "");
                   1761:   my ($revprint, $usrprint);
                   1762:
                   1763:   if ($annTable) {
                   1764:     print
                   1765:       "<table style=\"border: none\" cellspacing=\"0\" cellpadding=\"0\">\n";
                   1766:   } else {
                   1767:     print "<pre>";
                   1768:   }
                   1769:
                   1770:   # prefetch several lines
                   1771:   my @buf = head($reader);
                   1772:
                   1773:   my %d = scan_directives(@buf);
                   1774:
                   1775:   while (@buf || !eof($reader)) {
                   1776:     $_ = @buf ? shift @buf : <$reader>;
                   1777:
                   1778:     my @words = split;
                   1779:
                   1780:     # Adding one is for the (single) space which follows $words[0].
                   1781:     my $rest = substr($_, length($words[0]) + 1);
                   1782:     if ($words[0] eq "E") {
                   1783:       next;
                   1784:     } elsif ($words[0] eq "M") {
                   1785:       $lineNr++;
                   1786:       (my $lrev = substr($_, 2,  13)) =~ y/ //d;
                   1787:       (my $lusr = substr($_, 16, 9))  =~ y/ //d;
                   1788:       my $line = substr($_, 36);
                   1789:       my $isCurrentRev = ($rev eq $lrev);
                   1790:
                   1791:       # we should parse the date here ..
                   1792:       if ($lrev eq $oldLrev) {
                   1793:         $revprint = sprintf('%-8s', '');
                   1794:       } else {
                   1795:         $revprint = sprintf('%-8s', $lrev);
                   1796:         $revprint =~ s`\S+`&link($&, "$scriptwhere$query#rev$&")`e;    # `
                   1797:         $oldLusr = '';
                   1798:       }
                   1799:
                   1800:       if ($lusr eq $oldLusr) {
                   1801:         $usrprint = '';
                   1802:       } else {
                   1803:         $usrprint = $lusr;
                   1804:       }
                   1805:       $oldLrev = $lrev;
                   1806:       $oldLusr = $lusr;
                   1807:
                   1808:       # Set bold for text-based browsers only - graphical
                   1809:       # browsers show bold fonts a bit wider than regular fonts,
                   1810:       # so it looks irregular.
                   1811:       print "<b>" if ($isCurrentRev && $is_textbased);
                   1812:
3.136     scop     1813:       $usrprint = sprintf('%-8s', $usrprint);
                   1814:       printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
                   1815:         htmlquote($usrprint), $lineNr;
3.120     scop     1816:       print spacedHtmlText($line, $d{'tabstop'});
                   1817:
                   1818:       print "</b>" if ($isCurrentRev && $is_textbased);
                   1819:     } elsif ($words[0] eq "ok") {
                   1820:
                   1821:       # We could complain about any text received after this, like the
                   1822:       # CVS command line client.  But for simplicity, we don't.
                   1823:     } elsif ($words[0] eq "error") {
                   1824:       fatal("500 Internal Error",
                   1825:             'Error occured during annotate: <b>%s</b>', $_);
                   1826:     }
                   1827:   }
                   1828:
                   1829:   if ($annTable) {
                   1830:     print "</table>";
                   1831:   } else {
                   1832:     print "</pre>";
                   1833:   }
3.124     scop     1834:   html_footer();
                   1835:
3.120     scop     1836:   close($reader) or warn "cannot close: $!";
                   1837:   wait;
3.1       knu      1838: }
                   1839:
                   1840: ###############################
                   1841: # make Checkout
                   1842: ###############################
3.120     scop     1843: sub doCheckout($$)
                   1844: {
                   1845:   my ($fullname, $rev) = @_;
3.156     scop     1846:   my ($revopt);
3.120     scop     1847:   my $fh = do { local (*FH); };
                   1848:
                   1849:   if ($rev eq 'HEAD' || $rev eq '.') {
                   1850:     $rev = undef;
                   1851:   }
                   1852:
                   1853:   # make sure the revisions a wellformed, for security
                   1854:   # reasons ..
                   1855:   if (defined($rev) && $rev =~ /[^\w.]/) {
                   1856:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1857:   }
                   1858:
                   1859:   # get mimetype
3.156     scop     1860:   my $mimetype;
3.120     scop     1861:   if (defined($input{"content-type"})
                   1862:     && ($input{"content-type"} =~ /\S\/\S/))
                   1863:   {
                   1864:     $mimetype = $input{"content-type"};
                   1865:   } else {
3.156     scop     1866:     $mimetype = getMimeType($fullname);
3.120     scop     1867:   }
                   1868:
3.163     scop     1869:   my $moddate = undef;
3.120     scop     1870:   if (defined($rev)) {
                   1871:     $revopt = "-r$rev";
                   1872:     if ($use_moddate) {
                   1873:       readLog($fullname, $rev);
                   1874:       $moddate = $date{$rev};
                   1875:     }
                   1876:   } else {
                   1877:     $revopt = "-rHEAD";
                   1878:     if ($use_moddate) {
                   1879:       readLog($fullname);
                   1880:       $moddate = $date{$symrev{HEAD}};
                   1881:     }
                   1882:   }
                   1883:
                   1884:   ### just for the record:
                   1885:   ### 'cvs co' seems to have a bug regarding single checkout of
                   1886:   ### directories/files having spaces in it;
                   1887:   ### this is an issue that should be resolved on cvs's side
                   1888:   #
                   1889:   # Safely for a child process to read from.
                   1890:   if (!open($fh, "-|")) {    # child
3.165     scop     1891:     # Change to temporary directory first to avoid non-readable cgi-bin dirs.
                   1892:     chdir(tmpdir());
3.120     scop     1893:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   1894:
                   1895:     # work around a bug of cvs -p; expand symlinks
                   1896:     exec($CMD{cvs}, @cvs_options, '-d', abs_path($cvsroot), 'co', '-p',
                   1897:          $revopt, $where)
                   1898:       or exit -1;
                   1899:   }
                   1900:
                   1901:   if (eof($fh)) {
                   1902:     fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
                   1903:   }
                   1904:
                   1905:   #===================================================================
                   1906:   #Checking out squid/src/ftp.c
                   1907:   #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1908:   #VERS: 1.1.1.28.6.2
                   1909:   #***************
                   1910:
                   1911:   # Parse CVS header
                   1912:   my ($revision, $filename, $cvsheader);
                   1913:   $filename = "";
                   1914:   while (<$fh>) {
                   1915:     last if (/^\*\*\*\*/);
                   1916:     $revision = $1 if (/^VERS: (.*)$/);
                   1917:
                   1918:     if (/^Checking out (.*)$/) {
                   1919:       $filename = $1;
                   1920:       $filename =~ s/^\.\/*//;
                   1921:     }
                   1922:     $cvsheader .= $_;
                   1923:   }
                   1924:
                   1925:   if ($filename ne $where) {
                   1926:     fatal("500 Internal Error",
                   1927:           'Unexpected output from cvs co: %s', $cvsheader);
                   1928:   }
                   1929:   $| = 1;
                   1930:
3.146     scop     1931:   if ($mimetype =~ $CvsWebMarkupRE) {
3.163     scop     1932:     # Here we know the last modified date, but don't know if tags have been
                   1933:     # added since: no last-modified (for now).
                   1934:     cvswebMarkup($fh, $fullname, $revision);
3.120     scop     1935:   } else {
3.163     scop     1936:     http_header($mimetype, $moddate);
3.120     scop     1937:     print <$fh>;
                   1938:   }
                   1939:   close($fh);
1.12      fenner   1940: }
                   1941:
3.163     scop     1942: sub cvswebMarkup($$$;$)
3.120     scop     1943: {
3.163     scop     1944:   my ($filehandle, $fullname, $revision, $mod) = @_;
3.120     scop     1945:   my ($pathname,   $filename);
3.1       knu      1946:
3.120     scop     1947:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1948:   ($filename = $where) =~ s/^.*\///;
3.156     scop     1949:   my $fileurl = urlencode($filename);
                   1950:   my $mimetype = getMimeType($filename);
3.120     scop     1951:
3.163     scop     1952:   navigateHeader($scriptwhere, $pathname, $filename, $revision, 'view', $mod);
3.120     scop     1953:
3.144     scop     1954:   print <<EOF;
                   1955: <hr noshade>
                   1956: <table width="100%">
                   1957: <tr>
                   1958: <td class="log-markup">File:&nbsp;
                   1959: EOF
3.159     scop     1960:   print &clickablePath($where, 1), ' - (';
3.144     scop     1961:   &download_link($fileurl, $revision, 'download');
3.156     scop     1962:   if ($mimetype ne 'text/plain') {
3.159     scop     1963:     print ' / ';
3.120     scop     1964:     &download_link($fileurl, $revision, "as text", "text/plain");
                   1965:   }
3.159     scop     1966:   print ')';
3.170     scop     1967:   print ' - ', &graph_link('', 'graph') if $allow_cvsgraph;
3.120     scop     1968:   print "<br>\n";
                   1969:
                   1970:   if ($show_log_in_markup) {
                   1971:     readLog($fullname);    #,$revision);
                   1972:     printLog($revision, 0);
                   1973:   } else {
                   1974:     print "Version: <b>$revision</b><br>\n";
                   1975:     print "Tag: <b>", $input{only_with_tag}, "</b><br>\n"
                   1976:       if $input{only_with_tag};
                   1977:   }
                   1978:   print "</td>\n</tr>\n</table>";
                   1979:   my $url = download_url($fileurl, $revision, $mimetype);
                   1980:   print "<hr noshade>";
                   1981:
                   1982:   if ($mimetype =~ /^image/) {
3.160     scop     1983:     printf '<img src="%s" alt="%s"><br>',
                   1984:       hrefquote("$url$barequery"), htmlquote($filename);
3.120     scop     1985:   } elsif ($mimetype =~ m%^application/pdf%) {
3.157     scop     1986:     printf '<embed src="%s" width="100%%" height="100%%"><br>',
                   1987:       hrefquote("$url$barequery");
3.120     scop     1988:   } elsif ($preformat_in_markup) {
                   1989:     print "<pre>";
                   1990:
                   1991:     # prefetch several lines
                   1992:     my @buf = head($filehandle);
                   1993:
                   1994:     my %d = scan_directives(@buf);
                   1995:
                   1996:     while (@buf || !eof($filehandle)) {
                   1997:       $_ = @buf ? shift @buf : <$filehandle>;
                   1998:
                   1999:       print spacedHtmlText($_, $d{'tabstop'});
                   2000:     }
                   2001:     print "</pre>";
                   2002:   } else {
                   2003:
3.148     scop     2004:     my $enscript_hl = undef;
                   2005:
                   2006:     if ($allow_enscript) {
                   2007:       while (my ($hl, $regex) = each %enscript_types) {
3.149     scop     2008:         if ($filename =~ $regex) {
                   2009:           $enscript_hl = $hl;
                   2010:           last;
                   2011:         }
3.148     scop     2012:       }
                   2013:     }
                   2014:
3.149     scop     2015:     print '<pre>';
3.167     scop     2016:     my $linenumbers = $input{ln} || 0;
3.149     scop     2017:
3.148     scop     2018:     if ($enscript_hl) {
3.167     scop     2019:       doEnscript($filehandle, $enscript_hl, $linenumbers);
3.148     scop     2020:
                   2021:     } else {
3.167     scop     2022:       my $ln = 0;
3.148     scop     2023:       while (<$filehandle>) {
3.167     scop     2024:         if ($linenumbers) {
                   2025:           $ln++;
                   2026:           printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
3.149     scop     2027:         }
                   2028:         print htmlquote($_);
3.148     scop     2029:       }
3.120     scop     2030:     }
3.149     scop     2031:
                   2032:     print "</pre>\n";
3.120     scop     2033:   }
3.131     scop     2034:   html_footer();
3.120     scop     2035: }
                   2036:
3.156     scop     2037:
3.120     scop     2038: sub viewable($)
                   2039: {
3.156     scop     2040:   my $mimetype = shift || '';
                   2041:   return ($allow_markup && $mimetype =~ m%^((text|image)/|application/pdf)%);
                   2042: }
3.120     scop     2043:
3.1       knu      2044:
                   2045: ###############################
                   2046: # Show Colored Diff
                   2047: ###############################
3.120     scop     2048: sub doDiff($$$$$$)
                   2049: {
                   2050:   my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   2051:   my $fh = do { local (*FH); };
                   2052:   my ($rev1, $rev2, $sym1, $sym2, $f1, $f2);
                   2053:
                   2054:   if (&forbidden_file($fullname)) {
                   2055:     fatal("403 Forbidden",
                   2056:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   2057:   }
                   2058:
                   2059:   if ($r1 =~ /([^:]+)(:(.+))?/) {
                   2060:     $rev1 = $1;
                   2061:     $sym1 = $3;
                   2062:   }
                   2063:   if ($r1 eq 'text') {
                   2064:     $rev1 = $tr1;
                   2065:     $sym1 = "";
                   2066:   }
                   2067:
                   2068:   if ($r2 =~ /([^:]+)(:(.+))?/) {
                   2069:     $rev2 = $1;
                   2070:     $sym2 = $3;
                   2071:   }
                   2072:   if ($r2 eq 'text') {
                   2073:     $rev2 = $tr2;
                   2074:     $sym2 = "";
                   2075:   }
                   2076:
                   2077:   # make sure the revisions a wellformed, for security
                   2078:   # reasons ..
                   2079:   if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
                   2080:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   2081:   }
                   2082:
                   2083:   #
                   2084:   # rev1 and rev2 are now both numeric revisions.
                   2085:   # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   2086:   # XXX should we warn about the fact that we do this?
                   2087:   if (&revcmp($rev1, $rev2) > 0) {
                   2088:     my ($tmp1, $tmp2) = ($rev1, $sym1);
                   2089:     ($rev1, $sym1) = ($rev2, $sym2);
                   2090:     ($rev2, $sym2) = ($tmp1, $tmp2);
                   2091:   }
                   2092:   my $difftype = $DIFFTYPES{$f};
                   2093:
                   2094:   if (!$difftype) {
                   2095:     fatal("400 Bad arguments", 'Diff format %s not understood', $f);
                   2096:   }
                   2097:
                   2098:   my @difftype       = @{$difftype->{'opts'}};
                   2099:   my $human_readable = $difftype->{'colored'};
                   2100:
                   2101:   # apply special options
                   2102:   if ($showfunc) {
                   2103:     push @difftype, '-p' if $f ne 's';
                   2104:
                   2105:     my ($re1, $re2);
                   2106:
                   2107:     while (($re1, $re2) = each %funcline_regexp) {
                   2108:       if ($fullname =~ /$re1/) {
                   2109:         push @difftype, '-F', $re2;
                   2110:         last;
                   2111:       }
                   2112:     }
                   2113:   }
                   2114:
                   2115:   if ($human_readable) {
                   2116:     if ($hr_ignwhite) {
                   2117:       push @difftype, '-w';
                   2118:     }
                   2119:     if ($hr_ignkeysubst) {
                   2120:       push @difftype, '-kk';
                   2121:     }
                   2122:   }
                   2123:
                   2124:   if (!open($fh, "-|")) {    # child
                   2125:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   2126:     openOutputFilter();
3.166     scop     2127:     exec($CMD{rcsdiff}, @rcsdiff_options, @difftype, "-r$rev1", "-r$rev2",
                   2128:          $fullname) or exit -1;
3.120     scop     2129:   }
3.166     scop     2130:
3.120     scop     2131:   if ($human_readable) {
3.168     scop     2132:     #
                   2133:     # Human readable diff.
                   2134:     #
                   2135:     human_readable_diff($fh, $rev2);
                   2136:     html_footer();
                   2137:     gzipclose();
                   2138:     exit;
                   2139:
                   2140:   } elsif ($f =~ /^([ucs])c$/) {
                   2141:     #
                   2142:     # Enscript colored diff.
                   2143:     #
                   2144:     my $hl = 'diff';
                   2145:     $hl .= $1 if ($1 eq 'u' || $1 eq 's');
                   2146:     (my $where_nd = $where)       =~ s/\.diff$//;
                   2147:     (my $pathname = $where_nd)    =~ s|(Attic\/)?[^/]*$||;
                   2148:     (my $filename = $where_nd)    =~ s|^.*/||;
                   2149:     (my $swhere   = $scriptwhere) =~ s|\.diff$||;
                   2150:     navigateHeader($swhere, $pathname, $filename, $rev2, 'diff');
                   2151:     printf(<<EOF, $where_nd, $rev1, $rev2);
                   2152: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
                   2153: <pre>
                   2154: EOF
                   2155:     doEnscript($fh, $hl, 0);
                   2156:     print <<EOF;
                   2157: </pre>
                   2158: <hr style="width: 100%" noshade>
                   2159: <form method="get" action="$scriptwhere">
                   2160: EOF
                   2161:     printDiffSelectStickyVars();
                   2162:     print 'Diff format: ';
                   2163:     printDiffSelect($use_java_script);
                   2164:     print "<input type=\"submit\" value=\"Show\">\n</form>\n";
3.120     scop     2165:     html_footer();
                   2166:     gzipclose();
                   2167:     exit;
3.168     scop     2168:
3.120     scop     2169:   } else {
3.168     scop     2170:     #
                   2171:     # Plain diff.
                   2172:     #
3.120     scop     2173:     http_header("text/plain");
                   2174:   }
                   2175:
                   2176:   #
                   2177:   #===================================================================
                   2178:   #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   2179:   #retrieving revision 1.16
                   2180:   #retrieving revision 1.17
                   2181:   #diff -c -r1.16 -r1.17
                   2182:   #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2183:   #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   2184:   #
                   2185:   # Ideas:
                   2186:   # - nuke the stderr output if it's what we expect it to be
                   2187:   # - Add "no differences found" if the diff command supplied no output.
                   2188:   #
                   2189:   #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2190:   #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   2191:   # (bogus example, but...)
                   2192:   #
                   2193:   if (grep { $_ eq '-u' } @difftype) {
                   2194:     $f1 = '---';
                   2195:     $f2 = '\+\+\+';
                   2196:   } else {
                   2197:     $f1 = '\*\*\*';
                   2198:     $f2 = '---';
                   2199:   }
                   2200:
                   2201:   while (<$fh>) {
                   2202:     if (m|^$f1 $cvsroot|o) {
                   2203:       s|$cvsroot/||o;
                   2204:       if ($sym1) {
                   2205:         chop;
                   2206:         $_ .= " $sym1\n";
                   2207:       }
                   2208:     } elsif (m|^$f2 $cvsroot|o) {
                   2209:       s|$cvsroot/||o;
                   2210:
                   2211:       if ($sym2) {
                   2212:         chop;
                   2213:         $_ .= " $sym2\n";
                   2214:       }
                   2215:     }
                   2216:     print $_;
                   2217:   }
                   2218:   close($fh);
1.12      fenner   2219: }
                   2220:
3.1       knu      2221: ###############################
                   2222: # Show Logs ..
                   2223: ###############################
3.120     scop     2224: sub getDirLogs($$@)
                   2225: {
                   2226:   my ($cvsroot, $dirname, @otherFiles) = @_;
3.139     scop     2227:   my $tag = $input{only_with_tag};
                   2228:   my $DirName = "$cvsroot/$where";
3.120     scop     2229:
3.139     scop     2230:   my @files = &safeglob("$DirName/*,v");
                   2231:   push (@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
3.120     scop     2232:   foreach my $file (@otherFiles) {
                   2233:     push (@files, "$DirName/$file");
                   2234:   }
                   2235:
3.150     scop     2236:   # Weed out unreadable files.
                   2237:   my $i = 0;
                   2238:   my @unreadable = ();
                   2239:   while ($i < scalar(@files)) {
                   2240:     if (-r $files[$i]) {
                   2241:       $i++;
                   2242:     } else {
                   2243:       push(@unreadable, splice(@files, $i, 1));
                   2244:     }
                   2245:   }
                   2246:
3.139     scop     2247:   # If there are no files, we're done.
3.150     scop     2248:   return @unreadable unless @files;
3.120     scop     2249:
3.139     scop     2250:   my @cmd = ($CMD{rlog});
                   2251:   # Can't use -r<tag> as '-' is allowed in tagnames,
                   2252:   # but misinterpreted by rlog.
                   2253:   push(@cmd, '-r') unless defined($tag);
3.120     scop     2254:
3.139     scop     2255:   my $fh = do { local (*FH); };
                   2256:   if (!open($fh, '-|')) {            # Child
3.165     scop     2257:     open(STDERR, '>', devnull());    # Ignore rlog's complaints.
3.139     scop     2258:     openOutputFilter();
                   2259:     if ($file_list_len && $file_list_len > 1) {
                   2260:       while (scalar(@files) > $file_list_len) {  # Process files in chunks.
                   2261:         system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
                   2262:       }
3.120     scop     2263:     }
3.139     scop     2264:     exec(@cmd, @files) or exit -1;
                   2265:   }
                   2266:   undef @cmd;
3.120     scop     2267:
3.139     scop     2268:   my $state = 'start';
                   2269:   my ($date, $branchpoint, $branch, $log, @filetags);
3.152     scop     2270:   my ($rev, $revision, $revwanted, $filename, $head, $author, $keywordsubst);
3.120     scop     2271:
                   2272:   while (<$fh>) {
                   2273:     if ($state eq "start") {
                   2274:
                   2275:       #Next file. Initialize file variables
                   2276:       $rev         = '';
                   2277:       $revwanted   = '';
                   2278:       $branch      = '';
                   2279:       $branchpoint = '';
                   2280:       $filename    = '';
                   2281:       $log         = '';
                   2282:       $revision    = '';
                   2283:       %symrev      = ();
                   2284:       @filetags    = ();
3.152     scop     2285:       $keywordsubst= '';
3.120     scop     2286:
                   2287:       #jump to head state
                   2288:       $state = "head";
                   2289:     }
3.144     scop     2290:
3.120     scop     2291:     again:
                   2292:
                   2293:     if ($state eq "head") {
                   2294:
                   2295:       #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   2296:
                   2297:       if (/^Working file: (.+)$/) {
                   2298:         $filename = $1;
                   2299:       } elsif (/^head: (.+)$/) {
                   2300:         $head = $1;
                   2301:       } elsif (/^branch: (.+)$/) {
                   2302:         $branch = $1;
3.152     scop     2303:       } elsif (/^keyword substitution: (.+)$/) {
                   2304:         $keywordsubst = $1;
3.120     scop     2305:       } elsif (/^symbolic names:/) {
                   2306:         $state = "tags";
                   2307:         ($branch = $head) =~ s/\.\d+$//
                   2308:           if $branch eq '';
                   2309:         $branch =~ s/(\d+)$/0.$1/;
                   2310:         $symrev{MAIN}  = $branch;
                   2311:         $symrev{HEAD}  = $branch;
                   2312:         $alltags{MAIN} = 1;
                   2313:         $alltags{HEAD} = 1;
                   2314:         push (@filetags, "MAIN", "HEAD");
                   2315:       } elsif (/$LOG_REVSEPARATOR/o) {
                   2316:         $state = "log";
                   2317:         $rev   = '';
                   2318:         $date  = '';
                   2319:         $log   = '';
                   2320:
                   2321:         # Try to reconstruct the relative filename if RCS spits out a full path
                   2322:         $filename =~ s%^\Q$DirName\E/%%;
                   2323:       }
                   2324:       next;
                   2325:     }
                   2326:
                   2327:     if ($state eq "tags") {
                   2328:       if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
                   2329:         push (@filetags, $1);
                   2330:         $symrev{$1}  = $2;
                   2331:         $alltags{$1} = 1;
                   2332:         next;
                   2333:       } elsif (/^\S/) {
                   2334:
                   2335:         if (defined($tag)) {
                   2336:           if (defined($symrev{$tag}) || $tag eq "HEAD") {
                   2337:             $revwanted    = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
                   2338:             ($branch      = $revwanted) =~ s/\b0\.//;
                   2339:             ($branchpoint = $branch)    =~ s/\.?\d+$//;
                   2340:             $revwanted    = '' if ($revwanted ne $branch);
                   2341:           } elsif ($tag ne "HEAD") {
                   2342:             $state = "skip";
                   2343:             next;
                   2344:           }
                   2345:         }
                   2346:
                   2347:         foreach my $tagfound (@filetags) {
                   2348:           $tags{$tagfound} = 1;
                   2349:         }
                   2350:         $state = "head";
                   2351:         goto again;
                   2352:       }
                   2353:     }
                   2354:
                   2355:     if ($state eq "log") {
                   2356:       if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
                   2357:
                   2358:         # End of a log entry.
                   2359:         my $revbranch = $rev;
                   2360:         $revbranch =~ s/\.\d+$//;
                   2361:
                   2362:         if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
                   2363:             || !defined($tag))
                   2364:         {
                   2365:           $revwanted = $rev;
                   2366:         }
                   2367:
                   2368:         if ($revwanted ne ''
                   2369:             ? $rev eq $revwanted
                   2370:             : $branchpoint ne ''
                   2371:               ? $rev eq $branchpoint
                   2372:               : 0
                   2373:             && ($rev eq $head))
                   2374:         {    # Don't think head is needed here..
3.152     scop     2375:           my @finfo = ($rev, $date, $log, $author, $filename, $keywordsubst);
                   2376:           (my $name = $filename) =~ s%/.*%%;
3.120     scop     2377:           $fileinfo{$name} = [@finfo];
                   2378:           $state = "done" if ($rev eq $revwanted);
                   2379:         }
                   2380:         $rev  = '';
                   2381:         $date = '';
                   2382:         $log  = '';
                   2383:       } elsif ($date eq ''
                   2384:                && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|)
                   2385:       {
3.172   ! scop     2386:         my $yr    = $1;
        !          2387:         $yr      -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
        !          2388:         $date     = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2389:         ($author) = /author: ([^;]+)/;
3.172   ! scop     2390:         $state    = 'log';
        !          2391:         $log      = '';
3.120     scop     2392:         next;
                   2393:       } elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
                   2394:         $rev = $1;    # .*$ eats up the locker(lockers?) info, if any
                   2395:         next;
                   2396:       } else {
                   2397:         $log .= $_;
                   2398:       }
                   2399:     }
                   2400:
                   2401:     if (/$LOG_FILESEPARATOR/o) {
                   2402:       $state = "start";
                   2403:       next;
                   2404:     }
                   2405:   }
                   2406:
3.139     scop     2407:   my $linesread = $. || 0;
                   2408:   close($fh);
                   2409:
                   2410:   if ($linesread == 0) {
3.137     scop     2411:     fatal('500 Internal Error',
                   2412:           'Failed to spawn GNU rlog on <em>"%s"</em>.<br><br>Did you set the <b><code>$command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
3.150     scop     2413:           htmlquote(join(', ', @files)), $command_path);
3.120     scop     2414:   }
3.150     scop     2415:
                   2416:   return @unreadable;
3.120     scop     2417: }
                   2418:
                   2419: sub readLog($;$)
                   2420: {
                   2421:   my ($fullname, $revision) = @_;
                   2422:   my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   2423:   my $fh = do { local (*FH); };
                   2424:
3.144     scop     2425:   $revision = defined($revision) ? "-r$revision" : '';
3.120     scop     2426:
                   2427:   undef %symrev;
                   2428:   undef %revsym;
                   2429:   undef @allrevisions;
                   2430:   undef %date;
                   2431:   undef %author;
                   2432:   undef %state;
                   2433:   undef %difflines;
                   2434:   undef %log;
3.152     scop     2435:   $keywordsubstitution = '';
3.120     scop     2436:
                   2437:   if (!open($fh, "-|")) {    # child
                   2438:     if ($revision ne '') {
                   2439:       openOutputFilter();
                   2440:       exec($CMD{rlog}, $revision, $fullname) or exit -1;
                   2441:     } else {
                   2442:       openOutputFilter();
                   2443:       exec($CMD{rlog}, $fullname) or exit -1;
                   2444:     }
                   2445:   }
                   2446:
                   2447:   while (<$fh>) {
                   2448:     if ($symnames) {
                   2449:       if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   2450:         $symrev{$1} = $2;
3.152     scop     2451:         next;
3.120     scop     2452:       } else {
                   2453:         $symnames = 0;
                   2454:       }
3.152     scop     2455:     }
                   2456:     if (/^head:\s+([\d\.]+)/) {
3.120     scop     2457:       $head = $1;
                   2458:     } elsif (/^branch:\s+([\d\.]+)/) {
                   2459:       $curbranch = $1;
                   2460:     } elsif (/^symbolic names/) {
                   2461:       $symnames = 1;
3.152     scop     2462:     } elsif (/^keyword substitution: (.+)$/) {
                   2463:       $keywordsubstitution = $1;
3.120     scop     2464:     } elsif (/^-----/) {
                   2465:       last;
                   2466:     }
                   2467:   }
                   2468:   ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
                   2469:
                   2470:   # each log entry is of the form:
                   2471:   # ----------------------------
                   2472:   # revision 3.7.1.1
                   2473:   # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   2474:   # log info
                   2475:   # ----------------------------
                   2476:
                   2477:   # For a locked revision, the first line after the separator
                   2478:   # becomes smth like
3.149     scop     2479:   # revision 9.19       locked by: vassilii;
3.120     scop     2480:
                   2481:   logentry:
                   2482:
                   2483:   while (!/$LOG_FILESEPARATOR/o) {
                   2484:     $_ = <$fh>;
                   2485:     last logentry if (!defined($_));    # EOF
                   2486:     if (/^revision (\d+(?:\.\d+)+)/) {
                   2487:       $rev = $1;
                   2488:       unshift (@allrevisions, $rev);
                   2489:     } elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
                   2490:       next logentry;
                   2491:     } else {
                   2492:
                   2493:       # The rlog output is syntactically ambiguous.  We must
                   2494:       # have guessed wrong about where the end of the last log
                   2495:       # message was.
                   2496:       # Since this is likely to happen when people put rlog output
                   2497:       # in their commit messages, don't even bother keeping
                   2498:       # these lines since we don't know what revision they go with
                   2499:       # any more.
                   2500:       next logentry;
                   2501:     }
                   2502:     $_ = <$fh>;
                   2503:     if (
                   2504:       m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
                   2505:       )
                   2506:     {
3.172   ! scop     2507:       my $yr           = $1;
        !          2508:       $yr             -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
        !          2509:       $date{$rev}      = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2510:       $author{$rev}    = $7;
                   2511:       $state{$rev}     = $8;
                   2512:       $difflines{$rev} = $10;
                   2513:     } else {
                   2514:       fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
                   2515:     }
                   2516:
                   2517:   line:
                   2518:     while (<$fh>) {
                   2519:       next line if (/^branches:\s/);
                   2520:       last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
                   2521:       $log{$rev} .= $_;
                   2522:     }
                   2523:   }
                   2524:   close($fh);
                   2525:
                   2526:   @revorder = reverse sort { revcmp($a, $b) } @allrevisions;
                   2527:
                   2528:   #
                   2529:   # HEAD is an artificial tag which is simply the highest tag number on the main
                   2530:   # branch, unless there is a branch tag in the RCS file in which case it's the
                   2531:   # highest revision on that branch.  Find it by looking through @revorder; it
                   2532:   # is the first commit listed on the appropriate branch.
                   2533:   # This is not neccesary the same revision as marked as head in the RCS file.
                   2534:   my $headrev = $curbranch || "1";
                   2535:   ($symrev{"MAIN"} = $headrev) =~ s/(\d+)$/0.$1/;
                   2536:
                   2537:   foreach $rev (@revorder) {
                   2538:     if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   2539:       $symrev{"HEAD"} = $rev;
                   2540:       last;
                   2541:     }
                   2542:   }
                   2543:   ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   2544:     if (!defined($symrev{"HEAD"}));
                   2545:
                   2546:   #
                   2547:   # Now that we know all of the revision numbers, we can associate
                   2548:   # absolute revision numbers with all of the symbolic names, and
                   2549:   # pass them to the form so that the same association doesn't have
                   2550:   # to be built then.
                   2551:   #
                   2552:   undef @branchnames;
                   2553:   undef %branchpoint;
                   2554:   undef $sel;
                   2555:
                   2556:   foreach (reverse sort keys %symrev) {
                   2557:     $rev = $symrev{$_};
                   2558:     if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
                   2559:       push (@branchnames, $_);
                   2560:
                   2561:       #
                   2562:       # A revision number of A.B.0.D really translates into
                   2563:       # "the highest current revision on branch A.B.D".
                   2564:       #
                   2565:       # If there is no branch A.B.D, then it translates into
                   2566:       # the head A.B .
                   2567:       #
                   2568:       # This reasoning also applies to the main branch A.B,
                   2569:       # with the branch number 0.A, with the exception that
                   2570:       # it has no head to translate to if there is nothing on
                   2571:       # the branch, but I guess this can never happen?
                   2572:       #
                   2573:       # (the code below gracefully forgets about the branch
                   2574:       # if it should happen)
                   2575:       #
                   2576:       $head = defined($2) ? $2 : "";
                   2577:       $branch = $3;
                   2578:       $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   2579:       my $regex;
                   2580:       $regex = quotemeta $branchrev;
                   2581:       $rev   = $head;
                   2582:
                   2583:       foreach my $r (@revorder) {
                   2584:         if ($r =~ /^${regex}\b/) {
                   2585:           $rev = $branchrev;
                   2586:           last;
                   2587:         }
                   2588:       }
                   2589:       next if ($rev eq "");
                   2590:
                   2591:       if ($rev ne $head && $head ne "") {
3.131     scop     2592:         $branchpoint{$head} .= ', ' if ($branchpoint{$head});
3.120     scop     2593:         $branchpoint{$head} .= $_;
                   2594:       }
                   2595:     }
                   2596:     $revsym{$rev} .= ", " if ($revsym{$rev});
                   2597:     $revsym{$rev} .= $_;
3.136     scop     2598:     $sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
                   2599:                     htmlquote($rev), (htmlquote($_)) x 2);
3.120     scop     2600:   }
                   2601:
                   2602:   my ($onlyonbranch, $onlybranchpoint);
                   2603:   if ($onlyonbranch = $input{'only_with_tag'}) {
                   2604:     $onlyonbranch = $symrev{$onlyonbranch};
                   2605:     if ($onlyonbranch =~ s/\b0\.//) {
                   2606:       ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   2607:     } else {
                   2608:       $onlybranchpoint = $onlyonbranch;
                   2609:     }
                   2610:
                   2611:     if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   2612:       fatal("404 Tag not found", 'Tag %s not defined',
3.131     scop     2613:             $input{'only_with_tag'});
3.120     scop     2614:     }
                   2615:   }
                   2616:
                   2617:   undef @revisions;
                   2618:
                   2619:   foreach (@allrevisions) {
                   2620:     ($br  = $_)  =~ s/\.\d+$//;
                   2621:     ($brp = $br) =~ s/\.\d+$//;
                   2622:     next if ($onlyonbranch
                   2623:              && $br ne $onlyonbranch
                   2624:              && $_  ne $onlybranchpoint);
                   2625:     unshift (@revisions, $_);
                   2626:   }
                   2627:
                   2628:   if ($logsort eq "date") {
                   2629:
                   2630:     # Sort the revisions in commit order an secondary sort on revision
                   2631:     # (secondary sort needed for imported sources, or the first main
                   2632:     # revision gets before the same revision on the 1.1.1 branch)
                   2633:     @revdisplayorder =
                   2634:       sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) } @revisions;
                   2635:   } elsif ($logsort eq "rev") {
                   2636:
                   2637:     # Sort the revisions in revision order, highest first
                   2638:     @revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
                   2639:   } else {
                   2640:
                   2641:     # No sorting. Present in the same order as rlog / cvs log
                   2642:     @revdisplayorder = @revisions;
                   2643:   }
                   2644:
                   2645: }
                   2646:
                   2647: sub printDiffLinks($$)
                   2648: {
                   2649:   my ($text, $url) = @_;
                   2650:   my @extra;
                   2651:
                   2652:   local $_;
                   2653:   for ($DIFFTYPES{$defaultDiffType}{'colored'} ? qw(u) : qw(h)) {
                   2654:     my $f = $_ eq $defaultDiffType ? '' : $_;
                   2655:
                   2656:     push @extra, &link(lc $DIFFTYPES{$_}{'descr'}, "$url&f=$f");
                   2657:   }
                   2658:
                   2659:   print &link($text, $url), ' (', join (', ', @extra), ')';
                   2660: }
                   2661:
                   2662: sub printLog($;$)
                   2663: {
                   2664:   my ($link, $br, $brp);
                   2665:   ($_, $link) = @_;
                   2666:   ($br  = $_)  =~ s/\.\d+$//;
                   2667:   ($brp = $br) =~ s/\.?\d+$//;
3.131     scop     2668:   my $prev;
3.120     scop     2669:
                   2670:   $link = 1 if (!defined($link));
3.131     scop     2671:   my $isDead = ($state{$_} eq 'dead');
                   2672:   my $isSelected = (defined($input{'r1'}) && $input{'r1'} eq $_);
3.120     scop     2673:
3.131     scop     2674:   print "<div class=\"diff-selected\">\n" if $isSelected;
3.120     scop     2675:   print "<p>\n";
3.131     scop     2676:
3.120     scop     2677:   if ($link && !$isDead) {
3.156     scop     2678:     (my $filename = $where) =~ s/^.*\///;
                   2679:     my $fileurl   = urlencode($filename);
                   2680:     my $mimetype  = getMimeType($filename);
                   2681:     my $viewable  = viewable($mimetype);
                   2682:
3.120     scop     2683:     print "<a name=\"rev$_\"></a>";
                   2684:
                   2685:     if (defined($revsym{$_})) {
                   2686:       foreach my $sym (split (", ", $revsym{$_})) {
3.136     scop     2687:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2688:       }
                   2689:     }
                   2690:
                   2691:     if (defined($revsym{$br})
                   2692:         && $revsym{$br}
                   2693:         && !defined($nameprinted{$br}))
                   2694:     {
                   2695:       foreach my $sym (split (", ", $revsym{$br})) {
3.136     scop     2696:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2697:       }
                   2698:       $nameprinted{$br} = 1;
                   2699:     }
                   2700:     print "\n Revision ";
                   2701:     &download_link($fileurl, $_, $_,
3.156     scop     2702:                    $viewable ? 'text/x-cvsweb-markup' : undef);
3.120     scop     2703:
3.161     scop     2704:     print ' / (';
                   2705:
3.156     scop     2706:     if ($viewable) {
3.120     scop     2707:       &download_link($fileurl, $_, "download", $mimetype);
                   2708:     }
                   2709:
3.156     scop     2710:     if ($mimetype ne 'text/plain') {
3.161     scop     2711:       print ' / ' if $viewable;
3.120     scop     2712:       &download_link($fileurl, $_, "as text", "text/plain");
                   2713:     }
                   2714:
3.156     scop     2715:     if (!$viewable) {
3.161     scop     2716:       print ' / ' if ($mimetype ne 'text/plain');
3.120     scop     2717:       &download_link($fileurl, $_, "view", "text/x-cvsweb-markup");
                   2718:     }
3.161     scop     2719:
                   2720:     print ')';
3.120     scop     2721:
                   2722:     if ($allow_annotate) {
                   2723:       print " - ";
                   2724:       print &link('annotate',
                   2725:                   sprintf('%s/%s?annotate=%s%s',
                   2726:                           $scriptname, urlencode($where), $_, $barequery));
                   2727:     }
                   2728:
                   2729:     # Plus a select link if enabled, and this version isn't selected
                   2730:     if ($allow_version_select) {
3.131     scop     2731:       print ' - ';
                   2732:       if ($isSelected) {
                   2733:         print '<b>[selected]</b>';
3.120     scop     2734:       } else {
3.159     scop     2735:         print &link('select&nbsp;for&nbsp;diffs',
3.131     scop     2736:                     sprintf('%s?r1=%s%s#rev%s',
                   2737:                             $scriptwhere, $_, $barequery, $_));
3.120     scop     2738:       }
                   2739:     }
                   2740:   } else {
                   2741:     print "Revision <b>$_</b>";
                   2742:   }
                   2743:
                   2744:   if (/^1\.1\.1\.\d+$/) {
                   2745:     print " <i>(vendor branch)</i>";
                   2746:   }
                   2747:   if (defined @mytz) {
                   2748:     my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2749:     print ", <i>", scalar localtime($date{$_}), " $est</i> (";
                   2750:   } else {
                   2751:     print ", <i>", scalar gmtime($date{$_}), " UTC</i> (";
                   2752:   }
3.136     scop     2753:   print readableTime(time() - $date{$_}, 1), ' ago)';
                   2754:   print ' by <i>', htmlquote($author{$_}), "</i>\n";
                   2755:
                   2756:   if ($revsym{$br}) {
                   2757:     printf "<br>Branch: <b>%s</b>\n",
                   2758:       $link ? link_tags($revsym{$br}) : htmlquote($revsym{$br});
                   2759:   }
                   2760:   if ($revsym{$_}) {
                   2761:     printf "<br>CVS Tags: <b>%s</b>\n",
                   2762:       $link ? link_tags($revsym{$_}) : htmlquote($revsym{$_});
                   2763:   }
                   2764:   if ($branchpoint{$_}) {
                   2765:     printf "<br>Branch point for: <b>%s</b>\n",
                   2766:       $link ? link_tags($branchpoint{$_}) : htmlquote($branchpoint{$_});
                   2767:   }
3.120     scop     2768:
                   2769:   # Find the previous revision
                   2770:   my @prevrev = split (/\./, $_);
                   2771:   do {
                   2772:     if (--$prevrev[$#prevrev] <= 0) {
                   2773:
                   2774:       # If it was X.Y.Z.1, just make it X.Y
                   2775:       pop (@prevrev);
                   2776:       pop (@prevrev);
                   2777:     }
                   2778:     $prev = join (".", @prevrev);
                   2779:   } until (defined($date{$prev}) || $prev eq "");
                   2780:
                   2781:   if ($prev ne "") {
                   2782:     if ($difflines{$_}) {
                   2783:       print "<br>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2784:     }
                   2785:   }
                   2786:
                   2787:   if ($isDead) {
                   2788:     print "<br><b><i>FILE REMOVED</i></b>\n";
                   2789:   } elsif ($link) {
                   2790:     my %diffrev = ();
                   2791:     $diffrev{$_} = 1;
                   2792:     $diffrev{""} = 1;
                   2793:     print '<br>';
                   2794:     my $diff = 'Diff';
                   2795:
                   2796:     #
                   2797:     # Offer diff to previous revision
                   2798:     if ($prev) {
                   2799:       $diffrev{$prev} = 1;
                   2800:
                   2801:       my $url =
                   2802:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $prev, $_, $barequery);
                   2803:
                   2804:       print $diff, " to previous ";
                   2805:       $diff = '';
                   2806:       printDiffLinks($prev, $url);
                   2807:     }
                   2808:
                   2809:     #
                   2810:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2811:     # offer a diff with the branch point.
                   2812:     if ($revsym{$brp}
                   2813:       && !/^1\.1\.1\.\d+$/
                   2814:       && !defined($diffrev{$brp}))
                   2815:     {
                   2816:       my $url =
                   2817:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $brp, $_, $barequery);
                   2818:
                   2819:       print $diff, " to branchpoint ";
                   2820:       $diff = '';
                   2821:       printDiffLinks($brp, $url);
                   2822:     }
                   2823:
                   2824:     #
                   2825:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2826:     # offer to diff with the next revision of the higher branch.
                   2827:     # (e.g. change gets committed and then brought
                   2828:     # over to -stable)
                   2829:     if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2830:       my ($i, $nextmain);
                   2831:
                   2832:       for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
                   2833:       }
                   2834:       my @tmp2 = split (/\./, $_);
                   2835:       for ($nextmain = ""; $i > 0; $i--) {
                   2836:         my $next = $revorder[$i - 1];
                   2837:         my @tmp1 = split (/\./, $next);
                   2838:
                   2839:         if (@tmp1 < @tmp2) {
                   2840:           $nextmain = $next;
                   2841:           last;
                   2842:         }
                   2843:
                   2844:         # Only the highest version on a branch should have
                   2845:         # a diff for the "next main".
                   2846:         last
                   2847:           if (@tmp1 - 1 <= @tmp2
                   2848:           && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
                   2849:           join (".", @tmp2[0 .. $#tmp1 - 1]));
                   2850:       }
                   2851:
                   2852:       if (!defined($diffrev{$nextmain})) {
                   2853:         $diffrev{$nextmain} = 1;
                   2854:
                   2855:         my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2856:           $scriptwhere, $nextmain, $_, $barequery);
                   2857:
                   2858:         print $diff, " next main ";
                   2859:         $diff = '';
                   2860:         printDiffLinks($nextmain, $url);
                   2861:       }
                   2862:     }
                   2863:
                   2864:     # Plus if user has selected only r1, then present a link
                   2865:     # to make a diff to that revision
                   2866:     if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2867:       $diffrev{$input{"r1"}} = 1;
                   2868:
                   2869:       my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2870:         $scriptwhere, $input{'r1'}, $_, $barequery);
                   2871:
                   2872:       print $diff, " to selected ";
                   2873:       $diff = '';
                   2874:       printDiffLinks($input{'r1'}, $url);
                   2875:     }
                   2876:
                   2877:   }
                   2878:   print "\n</p>\n<pre>\n";
                   2879:   print &htmlify($log{$_}, $allow_log_extra);
                   2880:   print "</pre>\n";
3.131     scop     2881:   print "</div>\n" if $isSelected;
3.120     scop     2882: }
                   2883:
3.132     scop     2884: #
                   2885: # Generates the HTML view for CvsGraph.
                   2886: #
3.170     scop     2887: sub doGraphView()
3.132     scop     2888: {
                   2889:   (my $pathname = $where) =~ s|[^/]*$||;
                   2890:   (my $filename = $where) =~ s|^.*/||;
                   2891:
3.170     scop     2892:   navigateHeader($scriptwhere, $pathname, $filename, undef, 'graph');
3.132     scop     2893:
3.146     scop     2894:   my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3.132     scop     2895:   my $mapname = 'CvsGraphMap';
3.156     scop     2896:   my $ctype = viewable(getMimeType($filename)) ?
                   2897:     '&amp;content-type=text/x-cvsweb-markup' : '';
3.132     scop     2898:
3.170     scop     2899:   printf(<<EOF, $title, $mapname, $cvstree, $title);
3.146     scop     2900: <h3 style="text-align: center">%s</h3>
3.170     scop     2901: <div align="center"><img border="0" usemap="#%s" src="?cvsroot=%s&amp;graph=1&amp;makeimage=1" alt="%s"></div>
3.146     scop     2902: EOF
3.132     scop     2903:
3.135     scop     2904:   my @graph_cmd =
                   2905:     ($CMD{cvsgraph},
                   2906:      '-r', $cvsroot,
                   2907:      '-i',
                   2908:      '-M', $mapname,
3.146     scop     2909:      '-x', 4,
                   2910:      "-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$barequery\\\"\"",
                   2911:      "-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery$ctype\\\"\"",
                   2912:      "-Omap_diff_href=\"href=\\\"%(%F%).diff" .
                   2913:      "?r1=%(%P%)&amp;r2=%(%R%)$barequery\\\"\"",
3.135     scop     2914:      );
3.132     scop     2915:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2916:
                   2917:   my $pipe = IO::Pipe->new();
                   2918:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2919:   while (<$pipe>) {
                   2920:     print;
                   2921:   }
                   2922:   $pipe = undef;
                   2923:
                   2924:   html_footer();
                   2925: }
                   2926:
                   2927: #
                   2928: # Generates a graph using CvsGraph.
                   2929: #
3.170     scop     2930: sub doGraph()
3.132     scop     2931: {
                   2932:   (my $pathname = $where) =~ s|[^/]*$||;
                   2933:   (my $filename = $where) =~ s|^.*/||;
                   2934:
                   2935:   http_header('image/png');
                   2936:
                   2937:   my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot);
                   2938:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2939:
                   2940:   my $pipe = IO::Pipe->new();
                   2941:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2942:   {
                   2943:     local $/ = undef;
                   2944:     binmode(\*STDOUT);
                   2945:     print <$pipe>;
                   2946:   }
                   2947:   $pipe = undef;
                   2948: }
                   2949:
                   2950:
3.120     scop     2951: sub doLog($)
                   2952: {
                   2953:   my ($fullname) = @_;
                   2954:
                   2955:   readLog($fullname);
                   2956:
                   2957:   html_header("CVS log for $where");
3.144     scop     2958:
                   2959:   (my $upwhere  = $where) =~ s|(Attic/)?[^/]+$||;
                   2960:   (my $filename = $where) =~ s|^.*/||;
                   2961:   my $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2962:
3.120     scop     2963:   print "<p>\n ";
                   2964:   print &link($backicon, "$backurl#$filename"), " <b>Up to ",
                   2965:     &clickablePath($upwhere, 1), "</b>\n</p>\n";
                   2966:   print "<p>\n ";
                   2967:   print &link('Request diff between arbitrary revisions', '#diff');
3.132     scop     2968:   if ($allow_cvsgraph) {
3.170     scop     2969:     print ' / ', &graph_link('', 'Display revisions graphically');
3.132     scop     2970:   }
3.120     scop     2971:   print "\n</p>\n<hr noshade>\n";
                   2972:
                   2973:   print "<p>\n";
3.152     scop     2974:
                   2975:   my $explain = $keywordsubstitution =~ /b/ ?
                   2976:     ' (i.e.: CVS considers this a binary file)' : '';
                   2977:   print "Keyword substitution: $keywordsubstitution$explain<br>\n";
3.144     scop     2978:   print $curbranch
                   2979:     ? ("Default branch: ", ($revsym{$curbranch} || $curbranch))
                   2980:     : "No default branch";
3.120     scop     2981:   print "<br>\n";
                   2982:
3.153     scop     2983:   print 'Current tag: ', htmlquote($input{only_with_tag}), "<br>\n"
                   2984:     if $input{only_with_tag};
3.120     scop     2985:   print "</p>\n";
                   2986:
                   2987:   undef %nameprinted;
                   2988:
                   2989:   for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2990:     print "<hr size=\"1\" noshade>\n";
                   2991:     printLog($revdisplayorder[$i]);
                   2992:   }
                   2993:
3.144     scop     2994:   printf(<<EOF, $scriptwhere);
                   2995: <hr noshade>
                   2996: <p>
                   2997:  <a name="diff">
                   2998:   This form allows you to request diff's between any two revisions of a file.
                   2999:   You may select a symbolic revision name using the selection box or you may
                   3000:   type in a numeric name using the type-in text box.
                   3001:  </a>
                   3002: </p>
                   3003: <form method="get" action="%s.diff" name="diff_select">
                   3004: EOF
3.120     scop     3005:
                   3006:   foreach (@stickyvars) {
3.154     scop     3007:     printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   3008:            $_, htmlquote($input{$_}))
3.120     scop     3009:       if (defined($input{$_})
                   3010:           && ((!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_})
                   3011:               && $input{$_} ne ""));
                   3012:   }
3.144     scop     3013:
                   3014:   print <<EOF;
                   3015: <table style="border: none">
                   3016: <tr>
                   3017: <td align="right">
                   3018: <label for="r1" accesskey="1">Diffs between </label>
                   3019: <select id="r1" name="r1">
                   3020: <option value="text" selected>Use Text Field</option>
                   3021: EOF
                   3022:   print $sel, "</select>\n";
                   3023:
                   3024:   my $diffrev = defined($input{r1}) ?
                   3025:     $input{r1} : $revdisplayorder[$#revdisplayorder];
                   3026:
                   3027:   printf(<<EOF, $inputTextSize, $diffrev);
3.147     scop     3028: <input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0">
3.144     scop     3029: </td>
                   3030: <td><br></td>
                   3031: </tr><tr>
                   3032: <td align="right">
                   3033: <label for="r2" accesskey="2">and </label>
                   3034: <select id="r2" name="r2">
                   3035: <option value="text" selected>Use Text Field</option>
                   3036: EOF
                   3037:   print $sel, "</select>\n";
                   3038:
                   3039:   $diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
                   3040:
                   3041:   printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
                   3042: <input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0">
                   3043: </td>
                   3044: <td><input type="submit" value="  Get Diffs  " accesskey="G"></td>
                   3045: </tr>
                   3046: </table>
                   3047: </form>
                   3048: <hr noshade>
                   3049: <form method="get" action="%s">
                   3050: <table style="border: none">
                   3051: <tr>
                   3052:  <td align="right">
                   3053:   <label for="f" accesskey="D">Preferred Diff type:</label>
                   3054:  </td><td>
                   3055: EOF
                   3056:
3.120     scop     3057:   printDiffSelect($use_java_script);
3.144     scop     3058:
                   3059:   print <<EOF;
                   3060:  </td>
                   3061:  <td></td>
                   3062: </tr>
                   3063: EOF
3.120     scop     3064:
                   3065:   if (@branchnames) {
3.144     scop     3066:
                   3067:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3068: <tr>
                   3069: <td align="right">
                   3070: <label for="only_with_tag" accesskey="B">View only Branch:</label>
                   3071: </td><td>
                   3072: <a name="branch"></a>
                   3073: <select id="only_with_tag" name="only_with_tag"%s>
                   3074: EOF
                   3075:     print '<option value=""';
                   3076:     print ' selected'
                   3077:       if (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq '');
3.120     scop     3078:     print ">Show all branches</option>\n";
                   3079:
                   3080:     foreach (reverse sort @branchnames) {
3.136     scop     3081:       my $selected =
                   3082:         (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq $_);
                   3083:       printf("<option%s>%s</option>\n",
                   3084:              $selected ? ' selected' : '',
                   3085:              htmlquote($_));
3.120     scop     3086:     }
3.144     scop     3087:     print <<EOF
                   3088: </select>
                   3089: </td>
                   3090: <td></td>
                   3091: </tr>
                   3092: EOF
3.120     scop     3093:   }
                   3094:
3.144     scop     3095:   print <<EOF;
                   3096:  <tr>
                   3097:   <td align="right">
                   3098:    <a name="logsort"></a>
                   3099:    <label for="logsort" accesskey="L">Sort log by:</label>
                   3100:   </td><td>
                   3101: EOF
3.120     scop     3102:   printLogSortSelect($use_java_script);
3.144     scop     3103:   print <<EOF;
                   3104:   </td>
                   3105:   <td><input type="submit" value="  Set  " accesskey="S"></td>
                   3106:  </tr>
                   3107: </table>
                   3108: EOF
3.154     scop     3109:   foreach (@stickyvars) {
                   3110:     next if ($_ eq "f");
                   3111:     next if ($_ eq "only_with_tag");
                   3112:     next if ($_ eq "logsort");
                   3113:     printf("<input type=\"hidden\" name=\"$_\" value=\"%s\">\n",
                   3114:            htmlquote($input{$_}))
                   3115:       if (defined($input{$_})
                   3116:           && (!defined($DEFAULTVALUE{$_})
                   3117:               || $input{$_} ne $DEFAULTVALUE{$_})
                   3118:           && $input{$_} ne "");
                   3119:   }
                   3120:   print "</form>\n";
3.120     scop     3121:   html_footer();
                   3122: }
                   3123:
                   3124: sub flush_diff_rows($$$$)
                   3125: {
                   3126:   my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
                   3127:
                   3128:   if (!defined($state)) {
                   3129:     return;
                   3130:   }
                   3131:
                   3132:   if ($state eq "PreChangeRemove") {    # we just got remove-lines before
3.133     scop     3133:     for (my $j = 0; $j < $leftRow; $j++) {
3.144     scop     3134:       printf(<<EOF, scalar(@$leftColRef[$j]));
                   3135: <tr>
                   3136:  <td class="diff-removed">&nbsp;%s</td>
                   3137:  <td class="diff-empty">&nbsp;</td>
                   3138: </tr>
                   3139: EOF
3.120     scop     3140:     }
                   3141:   } elsif ($state eq "PreChange") {     # state eq "PreChange"
                   3142:                                         # we got removes with subsequent adds
                   3143:
3.133     scop     3144:     for (my $j = 0; $j < $leftRow || $j < $rightRow; $j++) {  # dump both cols
3.120     scop     3145:       print "<tr>\n";
                   3146:       if ($j < $leftRow) {
                   3147:         print "<td class=\"diff-changed\">&nbsp;@$leftColRef[$j]</td>";
                   3148:       } else {
                   3149:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3150:       }
                   3151:       print "\n";
                   3152:
                   3153:       if ($j < $rightRow) {
                   3154:         print "<td class=\"diff-changed\">&nbsp;@$rightColRef[$j]</td>";
                   3155:       } else {
                   3156:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3157:       }
                   3158:       print "\n</tr>\n";
                   3159:     }
                   3160:   }
3.1       knu      3161: }
                   3162:
                   3163: ##
                   3164: # Function to generate Human readable diff-files
                   3165: # human_readable_diff(String revision_to_return_to);
                   3166: ##
3.144     scop     3167: sub human_readable_diff($$)
3.120     scop     3168: {
                   3169:   my ($fh, $rev) = @_;
3.144     scop     3170:
3.120     scop     3171:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   3172:
3.169     scop     3173:   (my $where_nd       = $where)       =~ s|\.diff$||;
                   3174:   (my $filename       = $where_nd)    =~ s|^.*/||;
                   3175:   (my $pathname       = $where_nd)    =~ s|(Attic/)?[^/]*$||;
                   3176:   (my $scriptwhere_nd = $scriptwhere) =~ s|\.diff$||;
3.120     scop     3177:
3.133     scop     3178:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3.120     scop     3179:
                   3180:   # Read header to pick up read revision and date, if possible
                   3181:   while (<$fh>) {
                   3182:     ($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   3183:     ($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   3184:     last if (/^\+\+\+ /);
                   3185:   }
                   3186:
                   3187:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   3188:     $rev1  = $r1r;
                   3189:     $date1 = $r1d;
                   3190:   }
                   3191:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   3192:     $rev2  = $r2r;
                   3193:     $date2 = $r2d;
                   3194:   }
                   3195:
3.144     scop     3196:   # Using <table style=\"border: none\" here breaks NS 4.x badly...
                   3197:   printf(<<EOF, $where_nd, $rev1, $rev2, $rev1);
                   3198: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
3.147     scop     3199: <table border="0" cellspacing="0" cellpadding="0" width="100%%">
3.144     scop     3200: <tr style="background-color: #ffffff">
3.147     scop     3201: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3202: EOF
                   3203:   print ', ', $date1 if defined($date1);
                   3204:   print "<br>Tag: $sym1\n" if $sym1;
                   3205:   printf(<<EOF, $rev2);
                   3206: </th>
3.147     scop     3207: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3208: EOF
                   3209:   print ', ', $date2 if defined($date2);
                   3210:   print "<br>Tag: $sym2\n" if $sym2;
3.120     scop     3211:   print "</th>\n";
                   3212:
                   3213:   # Process diff text
                   3214:   # prefetch several lines
                   3215:   my @buf = head($fh);
3.144     scop     3216:   my %d = scan_directives(@buf);
3.120     scop     3217:
3.144     scop     3218:   my $leftRow  = 0;
                   3219:   my $rightRow = 0;
                   3220:   my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
                   3221:   my ($diffcode, $rest);
3.120     scop     3222:
                   3223:   while (@buf || !eof($fh)) {
                   3224:     $difftxt = @buf ? shift @buf : <$fh>;
                   3225:
                   3226:     if ($difftxt =~ /^@@/) {
                   3227:       ($oldline, $newline, $funname) =
                   3228:         $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   3229:       $funname = htmlquote($funname);
                   3230:       $funname =~ s/\s/&nbsp;/go;
3.144     scop     3231:
                   3232:       printf(<<EOF, $oldline, $funname, $newline, $funname);
                   3233: <tr class="diff-heading">
3.147     scop     3234: <td width="50%%">
                   3235:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3236:   <tr>
                   3237:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3238:   </tr>
                   3239:  </table>
3.147     scop     3240: </td><td width="50%%">
                   3241:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3242:   <tr>
                   3243:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3244:   </tr>
                   3245:  </table>
                   3246: </td>
                   3247: EOF
                   3248:
3.120     scop     3249:       $state    = "dump";
                   3250:       $leftRow  = 0;
                   3251:       $rightRow = 0;
                   3252:     } else {
                   3253:       ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
                   3254:       $_ = spacedHtmlText($rest, $d{'tabstop'});
                   3255:
                   3256:       #########
                   3257:       # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   3258:       # in order to get some nice 'ediff'-mode output
                   3259:       # states:
                   3260:       #  "dump"             - just dump the value
                   3261:       #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   3262:       #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   3263:       ##########
                   3264:
                   3265:       if ($diffcode eq '+') {
                   3266:         if ($state eq "dump")
                   3267:         {    # 'change' never begins with '+': just dump out value
3.144     scop     3268:           printf(<<EOF, $_);
                   3269: <tr>
                   3270:  <td class="diff-empty">&nbsp;</td>
                   3271:  <td class="diff-added">&nbsp;%s</td>
                   3272: </tr>
                   3273: EOF
3.120     scop     3274:         } else {    # we got minus before
                   3275:           $state = "PreChange";
                   3276:           $rightCol[$rightRow++] = $_;
                   3277:         }
                   3278:       } elsif ($diffcode eq '-') {
                   3279:         $state = "PreChangeRemove";
                   3280:         $leftCol[$leftRow++] = $_;
                   3281:       } else {    # empty diffcode
                   3282:         flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3.147     scop     3283:         printf(<<EOF, $_, $_);
3.144     scop     3284: <tr>
                   3285:  <td class="diff-same">&nbsp;%s</td>
                   3286:  <td class="diff-same">&nbsp;%s</td>
                   3287: </tr>
                   3288: EOF
3.120     scop     3289:         $state    = "dump";
                   3290:         $leftRow  = 0;
                   3291:         $rightRow = 0;
                   3292:       }
                   3293:     }
                   3294:   }
                   3295:   close($fh);
                   3296:
                   3297:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   3298:
                   3299:   # state is empty if we didn't have any change
                   3300:   if (!$state) {
3.144     scop     3301:     print <<EOF;
                   3302: <tr>
                   3303:  <td colspan="2">&nbsp;</td>
                   3304: </tr>
                   3305: <tr class="diff-empty">
                   3306:  <td colspan="2" align="center"><b>- No viewable change -</b></td>
                   3307: </tr>
                   3308: EOF
3.120     scop     3309:   }
                   3310:
3.144     scop     3311:   printf(<<EOF, $scriptwhere, $rev1, $rev2);
                   3312: </table>
3.147     scop     3313: <hr style="width: 100%%" noshade>
3.144     scop     3314: <form method="get" action="%s">
                   3315: <table style="border: none">
                   3316: <tr>
                   3317: <td>
                   3318:  <table border="1">
                   3319:   <tr>
                   3320:    <td>
                   3321:     Legend:<br>
                   3322:     <table style="border: none" cellspacing="0" cellpadding="1">
                   3323:      <tr>
                   3324:       <td align="center" class="diff-removed">Removed from v.%s</td>
                   3325:       <td class="diff-empty">&nbsp;</td>
                   3326:      </tr><tr class="diff-changed">
                   3327:       <td align="center" colspan="2">changed lines</td>
                   3328:      </tr><tr>
                   3329:       <td class="diff-empty">&nbsp;</td>
                   3330:       <td align="center" class="diff-added">Added in v.%s</td>
                   3331:      </tr>
                   3332:     </table>
                   3333:    </td>
                   3334:   </tr>
                   3335:  </table>
                   3336: </td>
                   3337: <td>
                   3338: EOF
3.168     scop     3339:   printDiffSelectStickyVars();
3.120     scop     3340:   printDiffSelect($use_java_script);
3.144     scop     3341:   print <<EOF;
                   3342: <input type="submit" value="Show">
                   3343: </td>
                   3344: </tr>
                   3345: </table>
                   3346: </form>
                   3347: EOF
3.120     scop     3348: }
3.167     scop     3349:
                   3350:
                   3351: sub doEnscript($$$)
                   3352: {
                   3353:   my ($filehandle, $highlight, $linenumbers) = @_;
                   3354:
                   3355:   my $reader = do { local (*FH); };
                   3356:   my $writer = do { local (*FH); };
                   3357:   my $ln = 0;
                   3358:
                   3359:   open2($reader, $writer, $CMD{enscript}, @enscript_options,
                   3360:         qw(-q --language=cvsweb -o -),
                   3361:         "--highlight=$highlight",
                   3362:         '-')
                   3363:     or fatal('500 Internal Error',
                   3364:              'Fatal Error - unable to open Enscript for colorization');
                   3365:
                   3366:   while (<$filehandle>) {
                   3367:     print $writer $_;
                   3368:   }
                   3369:   close($writer);
                   3370:   while (<$reader>) {
                   3371:     if ($linenumbers) {
                   3372:       $ln++;
                   3373:       printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
                   3374:     }
                   3375:     print $_;
                   3376:   }
                   3377:   close($reader);
                   3378: }
                   3379:
3.120     scop     3380:
3.163     scop     3381: sub navigateHeader($$$$$;$)
3.120     scop     3382: {
3.163     scop     3383:   my ($swhere, $path, $filename, $rev, $title, $moddate) = @_;
3.120     scop     3384:   $swhere = "" if ($swhere eq $scriptwhere);
                   3385:   $swhere = './' . urlencode($filename) if ($swhere eq "");
                   3386:
3.136     scop     3387:   my $qfile = htmlquote($filename);
                   3388:   my $qpath = htmlquote($path);
3.170     scop     3389:   my $trev  = $rev ? " - $rev" : '';
3.100     knu      3390:
3.163     scop     3391:   http_header('', $moddate);
3.133     scop     3392:
3.120     scop     3393:   print <<EOF;
3.100     knu      3394: $HTML_DOCTYPE
3.89      knu      3395: <html>
                   3396: <head>
3.170     scop     3397: <title>$qpath$qfile - $title$trev</title>
3.144     scop     3398: $HTML_META$CSS</head>
3.129     scop     3399: <body class="src">
                   3400: <table width="100%" class="navigate-header" style="border: none" cellspacing="0" cellpadding="1">
3.144     scop     3401:  <tr valign="bottom">
                   3402:   <td>
3.64      knu      3403: EOF
                   3404:
3.170     scop     3405:   print &link($backicon, "$swhere$query" . ($rev ? "#rev$rev" : ''));
3.136     scop     3406:   printf '<b>Return to %s CVS log',
3.170     scop     3407:     &link(htmlquote($filename), "$swhere$query" . ($rev ? "#rev$rev" : ''));
3.120     scop     3408:   print "</b> $fileicon</td>";
                   3409:
3.144     scop     3410:   printf(<<EOF, $diricon, &clickablePath($path, 1));
                   3411:   <td align="right">%s <b>Up to %s</b></td>
                   3412:  </tr>
                   3413: </table>
                   3414: EOF
3.120     scop     3415: }
                   3416:
                   3417: sub plural_write($$)
                   3418: {
                   3419:   my ($num, $text) = @_;
                   3420:   if ($num != 1) {
                   3421:     $text .= "s";
                   3422:   }
                   3423:
                   3424:   if ($num > 0) {
                   3425:     return join (' ', $num, $text);
                   3426:   } else {
                   3427:     return "";
                   3428:   }
3.1       knu      3429: }
                   3430:
                   3431: ##
                   3432: # print readable timestamp in terms of
                   3433: # '..time ago'
                   3434: # H. Zeller <zeller@think.de>
                   3435: ##
3.120     scop     3436: sub readableTime($$)
                   3437: {
                   3438:   my ($secs, $long) = @_;
                   3439:
                   3440:   # this function works correct for time >= 2 seconds
                   3441:   if ($secs < 2) {
                   3442:     return "very little time";
                   3443:   }
                   3444:
                   3445:   my %desc = (
3.133     scop     3446:               1        => 'second',
                   3447:               60       => 'minute',
                   3448:               3600     => 'hour',
                   3449:               86400    => 'day',
                   3450:               604800   => 'week',
                   3451:               2628000  => 'month',
                   3452:               31536000 => 'year'
                   3453:              );
                   3454:
3.120     scop     3455:   my @breaks = sort { $a <=> $b } keys %desc;
3.133     scop     3456:   my $i = 0;
3.120     scop     3457:
                   3458:   while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
                   3459:     $i++;
                   3460:   }
                   3461:   $i--;
3.133     scop     3462:   my $break  = $breaks[$i];
                   3463:   my $retval = plural_write(int($secs / $break), $desc{$break});
3.120     scop     3464:
                   3465:   if ($long == 1 && $i > 0) {
                   3466:     my $rest = $secs % $break;
                   3467:     $i--;
                   3468:     $break = $breaks[$i];
                   3469:     my $resttime = plural_write(int($rest / $break), $desc{$break});
                   3470:     if ($resttime) {
                   3471:       $retval .= ", $resttime";
                   3472:     }
                   3473:   }
3.1       knu      3474:
3.120     scop     3475:   return $retval;
3.1       knu      3476: }
                   3477:
                   3478: ##
                   3479: # clickablePath(String pathname, boolean last_item_clickable)
                   3480: #
                   3481: # returns a html-ified path whereas each directory is a link for
                   3482: # faster navigation. last_item_clickable controls whether the
                   3483: # basename (last directory/file) is a link as well
                   3484: ##
3.120     scop     3485: sub clickablePath($$)
                   3486: {
                   3487:   my ($pathname, $clickLast) = @_;
                   3488:
3.154     scop     3489:   my $root = '[' . htmlquote($CVSROOTdescr{$cvstree} || $cvstree) . ']';
                   3490:
3.144     scop     3491:   # This should never happen (see chooseCVSRoot()), but let's be sure...
3.154     scop     3492:   return $root if ($pathname eq '/');
3.120     scop     3493:
3.144     scop     3494:   my $retval =
3.154     scop     3495:     ' ' . &link($root, sprintf('%s/%s#dirlist', $scriptname, $query));
3.144     scop     3496:   my $wherepath = '';
                   3497:   my ($lastslash) = $pathname =~ m|/$|;
                   3498:
                   3499:   foreach (split (/\//, $pathname)) {
                   3500:     $retval .= ' / ';
                   3501:     $wherepath .= "/$_";
                   3502:     my $last = "$wherepath/" eq "/$pathname" || $wherepath eq "/$pathname";
                   3503:
                   3504:     if ($clickLast || !$last) {
                   3505:       $retval .= &link(htmlquote($_),
                   3506:                        join ('',
                   3507:                              $scriptname, urlencode($wherepath),
                   3508:                              (!$last || $lastslash ? '/' : ''), $query,
                   3509:                              (!$last || $lastslash ? "#dirlist" : "")));
                   3510:     } else {    # do not make a link to the current dir
                   3511:       $retval .= htmlquote($_);
3.120     scop     3512:     }
                   3513:   }
                   3514:   return $retval;
                   3515: }
                   3516:
3.144     scop     3517:
3.120     scop     3518: sub chooseCVSRoot()
                   3519: {
                   3520:
                   3521:   print "<form method=\"get\" action=\"${scriptwhere}\">\n";
                   3522:   if (2 <= @CVSROOT) {
3.133     scop     3523:     foreach my $k (keys %input) {
3.154     scop     3524:       printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n",
                   3525:              htmlquote($k), htmlquote($input{$k}))
                   3526:         if ($input{$k} && $k ne 'cvsroot');
3.120     scop     3527:     }
                   3528:
                   3529:     # Form-Elements look wierd in Netscape if the background
                   3530:     # isn't gray and the form elements are not placed
                   3531:     # within a table ...
3.144     scop     3532:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3533: <table style="border: none">
                   3534: <tr>
                   3535: <td><label for="cvsroot" accesskey="C">CVS Root:</label></td>
                   3536: <td>
                   3537: <select id="cvsroot" name="cvsroot"%s>
                   3538: EOF
3.120     scop     3539:
3.133     scop     3540:     foreach my $k (@CVSROOT) {
3.136     scop     3541:       printf("<option value=\"%s\"%s>%s</option>\n",
                   3542:              htmlquote($k),
                   3543:              ($k eq $cvstree) ? ' selected' : '',
                   3544:              htmlquote($CVSROOTdescr{$k} || $k));
3.120     scop     3545:     }
                   3546:     print "</select>\n</td>\n<td>";
                   3547:   } else {
                   3548:
                   3549:     # no choice -- but we need the form to select module/path,
                   3550:     # at least for Netscape
3.154     scop     3551:     printf "<p>\nCVS Root: <b>[%s]</b>",
                   3552:       htmlquote($CVSROOTdescr{$cvstree} || $cvstree);
3.120     scop     3553:   }
                   3554:
3.144     scop     3555:   print <<EOF;
                   3556: <label for="mpath" accesskey="M">
                   3557: Module path or alias:
                   3558: <input type="text" id="mpath" name="path" value="" size="15">
                   3559: </label>
                   3560: <input type="submit" value="Go" accesskey="O">
                   3561: EOF
3.120     scop     3562:
3.144     scop     3563:   print 2 <= @CVSROOT ? "</td>\n</tr>\n</table>" : '</p>';
3.120     scop     3564:   print "\n</form>";
                   3565: }
                   3566:
                   3567: sub chooseMirror()
                   3568: {
                   3569:
                   3570:   # This code comes from the original BSD-cvsweb
                   3571:   # and may not be useful for your site; If you don't
                   3572:   # set %MIRRORS this won't show up, anyway.
                   3573:   scalar(%MIRRORS) or return;
                   3574:
                   3575:   # Should perhaps exclude the current site somehow...
                   3576:   print "\n<p>\nThis CVSweb is mirrored in\n";
                   3577:
                   3578:   my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
                   3579:   my $tmp = pop (@tmp);
                   3580:
                   3581:   if (scalar(@tmp)) {
                   3582:     print join (', ', @tmp), ' and ';
                   3583:   }
                   3584:
                   3585:   print "$tmp.\n</p>\n";
                   3586: }
                   3587:
                   3588: sub fileSortCmp()
                   3589: {
                   3590:   my ($comp) = 0;
                   3591:   my ($c, $d, $af, $bf);
                   3592:
                   3593:   ($af = $a) =~ s/,v$//;
                   3594:   ($bf = $b) =~ s/,v$//;
                   3595:   my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
                   3596:     if (defined($fileinfo{$af}));
                   3597:   my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
                   3598:     if (defined($fileinfo{$bf}));
                   3599:
3.140     scop     3600:   if (defined($filename1) && defined($filename2) &&
                   3601:       $af eq $filename1   && $bf eq $filename2)
3.120     scop     3602:   {
                   3603:
                   3604:     # Two files
3.140     scop     3605:     $comp = -revcmp($rev1, $rev2)             if ($byrev  && $rev1  && $rev2);
                   3606:     $comp = ($date2   <=> $date1)             if ($bydate && $date1 && $date2);
                   3607:     if ($input{ignorecase}) {
                   3608:       $comp = (uc($log1)    cmp uc($log2))    if ($bylog && $log1 && $log2);
                   3609:       $comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
                   3610:                                                   $author1 && $author2);
                   3611:     } else {
                   3612:       $comp = ($log1    cmp $log2)            if ($bylog && $log1 && $log2);
                   3613:       $comp = ($author1 cmp $author2)         if ($byauthor &&
                   3614:                                                   $author1 && $author2);
                   3615:     }
3.120     scop     3616:   }
                   3617:
                   3618:   if ($comp == 0) {
                   3619:
                   3620:     # Directories first, then files under version control,
                   3621:     # then other, "rogue" files.
                   3622:     # Sort by filename if no other criteria available.
                   3623:
                   3624:     my $ad = (
                   3625:       (-d "$fullname/$a")
                   3626:       ? 'D'
                   3627:       : (defined($fileinfo{$af}) ? 'F' : 'R')
                   3628:     );
                   3629:     my $bd = (
                   3630:       (-d "$fullname/$b")
                   3631:       ? 'D'
                   3632:       : (defined($fileinfo{$bf}) ? 'F' : 'R')
                   3633:     );
                   3634:     ($c = $a) =~ s|.*/||;
                   3635:     ($d = $b) =~ s|.*/||;
3.144     scop     3636:
                   3637:     my ($l, $r) = ("$ad$c", "$bd$d");
                   3638:     $comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
                   3639:
                   3640:     # Parent dir is always first, then Attic.
                   3641:     if ($comp != 0) {
                   3642:       if ($l eq 'D..') {
3.149     scop     3643:         $comp = -1;
3.144     scop     3644:       } elsif ($r eq 'D..') {
3.149     scop     3645:         $comp = 1;
3.144     scop     3646:       } elsif ($l eq 'DAttic') {
3.149     scop     3647:         $comp = -1;
3.144     scop     3648:       } elsif ($r eq 'DAttic') {
3.149     scop     3649:         $comp = 1;
3.144     scop     3650:       }
                   3651:     }
3.120     scop     3652:   }
                   3653:   return $comp;
3.1       knu      3654: }
                   3655:
                   3656: # make A url for downloading
3.120     scop     3657: sub download_url($$;$)
                   3658: {
                   3659:   my ($url, $revision, $mimetype) = @_;
3.1       knu      3660:
3.120     scop     3661:   $revision =~ s/\b0\.//;
3.1       knu      3662:
3.146     scop     3663:   if (defined($checkoutMagic) &&
                   3664:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3665:   {
                   3666:     my $path = $where;
                   3667:     $path =~ s|[^/]+$||;
                   3668:     $url = "$scriptname/$checkoutMagic/${path}$url";
                   3669:   }
                   3670:   $url .= "?rev=$revision";
                   3671:   $url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
3.67      knu      3672:
3.120     scop     3673:   $url;
3.1       knu      3674: }
                   3675:
3.12      knu      3676: # Presents a link to download the
3.1       knu      3677: # selected revision
3.120     scop     3678: sub download_link($$$;$)
                   3679: {
                   3680:   my ($url, $revision, $textlink, $mimetype) = @_;
                   3681:   my ($fullurl) = download_url($url, $revision, $mimetype);
                   3682:
                   3683:   $fullurl =~ s/:/sprintf("%%%02x", ord($&))/eg;
                   3684:
3.159     scop     3685:   printf '<a href="%s" class="download-link"', hrefquote("$fullurl$barequery");
3.120     scop     3686:
3.146     scop     3687:   if ($open_extern_window &&
                   3688:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3689:   {
                   3690:     print ' target="cvs_checkout"';
                   3691:
                   3692:     # we should have
                   3693:     #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   3694:     # in order to allow the user to resize the window; otherwise
                   3695:     # the user may resize the window, but on next checkout - zap -
                   3696:     # its original (configured s. cvsweb.conf) size is back again
                   3697:     # .. annoying (if $extern_window_(width|height) is defined)
                   3698:     # but this if (..) solution is far from perfect
                   3699:     # what we need to do as well is
                   3700:     # 1) save cvswin in an invisible frame that always exists
                   3701:     #    (document.cvswin will be void on next load)
                   3702:     # 2) on close of the cvs_checkout - window set the cvswin
                   3703:     #    variable to 'null' again - so that it will be
                   3704:     #    reopenend with the configured size
                   3705:     # anyone a JavaScript programmer ?
                   3706:     # .. so here without if (..):
                   3707:     # currently, the best way is to comment out the size parameters
                   3708:     # ($extern_window...) in cvsweb.conf.
                   3709:     if ($use_java_script) {
3.159     scop     3710:       my @attr = qw(resizable scrollbars menubar);
3.120     scop     3711:
                   3712:       push @attr, qw(status toolbar)
                   3713:         if (defined($mimetype) && $mimetype eq "text/html");
                   3714:
                   3715:       push @attr, "width=$extern_window_width"
                   3716:         if (defined($extern_window_width));
                   3717:
                   3718:       push @attr, "height=$extern_window_height"
                   3719:         if (defined($extern_window_height));
                   3720:
                   3721:       # We need the "return false" here to prevent browsers
                   3722:       # from following the href after the onclick handler.
                   3723:       # This would effectively load the same document in
                   3724:       # the same window *twice*.
                   3725:       printf q` onclick="window.open('%s','cvs_checkout','%s');return false"`,
                   3726:         hrefquote("$fullurl$barequery"), join (',', @attr);
                   3727:     }
                   3728:   }
3.159     scop     3729:   print ">$textlink</a>";
3.132     scop     3730: }
                   3731:
3.170     scop     3732: sub graph_link($;$)
3.132     scop     3733: {
3.170     scop     3734:   my ($url, $text) = @_;
3.132     scop     3735:   $text ||= $graphicon;
3.170     scop     3736:   return sprintf('<a href="%s?graph=1%s">%s</a>',
                   3737:                  hrefquote($url), hrefquote($barequery), $text);
3.1       knu      3738: }
                   3739:
                   3740: # Returns a Query string with the
                   3741: # specified parameter toggled
3.140     scop     3742: sub toggleQuery($;$)
3.120     scop     3743: {
                   3744:   my ($toggle, $value) = @_;
3.133     scop     3745:
                   3746:   my %vars = %input;
3.120     scop     3747:
                   3748:   if (defined($value)) {
                   3749:     $vars{$toggle} = $value;
                   3750:   } else {
                   3751:     $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   3752:   }
                   3753:
                   3754:   # Build a new query of non-default paramenters
3.133     scop     3755:   my $newquery = "";
                   3756:   foreach my $var (@stickyvars) {
3.120     scop     3757:     my ($value)   = defined($vars{$var})         ? $vars{$var}         : "";
                   3758:     my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   3759:
                   3760:     if ($value ne $default) {
                   3761:       $newquery .= "&" if ($newquery ne "");
                   3762:       $newquery .= urlencode($var) . "=" . urlencode($value);
                   3763:     }
                   3764:   }
                   3765:
                   3766:   if ($newquery) {
                   3767:     return '?' . $newquery;
                   3768:   }
                   3769:   return "";
                   3770: }
                   3771:
                   3772: sub urlencode($)
                   3773: {
                   3774:   local ($_) = @_;
                   3775:
                   3776:   s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
                   3777:
                   3778:   $_;
                   3779: }
                   3780:
                   3781: sub htmlquote($)
                   3782: {
                   3783:   local ($_) = @_;
                   3784:
                   3785:   # Special Characters; RFC 1866
                   3786:   s/&/&amp;/g;
                   3787:   s/\"/&quot;/g;
                   3788:   s/</&lt;/g;
                   3789:   s/>/&gt;/g;
                   3790:
                   3791:   $_;
                   3792: }
                   3793:
                   3794: sub htmlunquote($)
                   3795: {
                   3796:   local ($_) = @_;
                   3797:
                   3798:   # Special Characters; RFC 1866
                   3799:   s/&quot;/\"/g;
                   3800:   s/&lt;/</g;
                   3801:   s/&gt;/>/g;
                   3802:   s/&amp;/&/g;
                   3803:
                   3804:   $_;
                   3805: }
                   3806:
                   3807: sub hrefquote($)
                   3808: {
                   3809:   local ($_) = @_;
                   3810:
                   3811:   y/ /+/;
                   3812:
                   3813:   htmlquote($_);
                   3814: }
                   3815:
3.163     scop     3816: sub http_header(;$$)
3.120     scop     3817: {
3.163     scop     3818:   my ($content_type, $moddate) = @_;
                   3819:   $content_type ||= 'text/html';
3.120     scop     3820:
                   3821:   $content_type .= "; charset=$charset"
3.163     scop     3822:     if ($charset && $content_type =~ m,^text/,);
3.120     scop     3823:
3.163     scop     3824:   if ($moddate) {
3.120     scop     3825:     if ($is_mod_perl) {
                   3826:       Apache->request->header_out(
                   3827:         "Last-Modified" => scalar gmtime($moddate) . " GMT");
                   3828:     } else {
                   3829:       print "Last-Modified: ", scalar gmtime($moddate), " GMT\r\n";
                   3830:     }
                   3831:   }
                   3832:
                   3833:   if ($is_mod_perl) {
                   3834:     Apache->request->content_type($content_type);
                   3835:   } else {
                   3836:     print "Content-Type: $content_type\r\n";
                   3837:   }
                   3838:
                   3839:   if ($allow_compress && $maycompress) {
                   3840:     if ($has_zlib
                   3841:         || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c")))
                   3842:     {
                   3843:
                   3844:       if ($is_mod_perl) {
                   3845:         Apache->request->content_encoding("x-gzip");
                   3846:         Apache->request->header_out(Vary => "Accept-Encoding");
                   3847:         Apache->request->send_http_header;
                   3848:       } else {
                   3849:         print "Content-Encoding: x-gzip\r\n";
                   3850:         print "Vary: Accept-Encoding\r\n";    #RFC 2068, 14.43
                   3851:         print "\r\n";                         # Close headers
                   3852:       }
                   3853:       $| = 1;
                   3854:       $| = 0;                                 # Flush header output
                   3855:
                   3856:       if ($has_zlib) {
                   3857:         tie *GZIP, __PACKAGE__, \*STDOUT;
                   3858:       }
                   3859:       select(GZIP);
                   3860:       $gzip_open = 1;
                   3861:
3.149     scop     3862:       #     print "<!-- gzipped -->" if ($content_type =~ m|^text/html\b|);
3.120     scop     3863:     } else {
                   3864:       if ($is_mod_perl) {
                   3865:         Apache->request->send_http_header;
                   3866:       } else {
                   3867:         print "\r\n";    # Close headers
                   3868:       }
                   3869:       print
                   3870:         "<span style=\"font-size: smaller\">Unable to find gzip binary in the <b>\$command_path</b> ($command_path) to compress output</span><br>";
                   3871:     }
                   3872:   } else {
                   3873:
                   3874:     if ($is_mod_perl) {
                   3875:       Apache->request->send_http_header;
                   3876:     } else {
                   3877:       print "\r\n";      # Close headers
                   3878:     }
                   3879:   }
                   3880: }
                   3881:
3.131     scop     3882:
3.163     scop     3883: sub html_header($;$)
3.120     scop     3884: {
3.163     scop     3885:   my ($title, $moddate) = @_;
                   3886:   $title = htmlquote($title);
3.162     scop     3887:   my $l = $logo || '';
3.163     scop     3888:   http_header('text/html', $moddate);
3.120     scop     3889:   print <<EOH;
3.100     knu      3890: $HTML_DOCTYPE
3.1       knu      3891: <html>
3.40      knu      3892: <head>
3.134     scop     3893: <title>$title</title>
3.144     scop     3894: $HTML_META$CSS</head>
3.129     scop     3895: <body>
3.162     scop     3896: $l <h1 align="center">$title</h1>
3.1       knu      3897: EOH
                   3898: }
                   3899:
3.120     scop     3900: sub html_footer()
                   3901: {
3.127     scop     3902:   print "<hr noshade>\n<address>$address</address>\n" if $address;
                   3903:   print "</body>\n</html>\n";
3.1       knu      3904: }
                   3905:
3.120     scop     3906: sub link_tags($)
                   3907: {
                   3908:   my ($tags) = @_;
                   3909:   my ($ret)  = "";
                   3910:   my ($fileurl, $filename);
                   3911:
                   3912:   ($filename = $where) =~ s/^.*\///;
                   3913:   $fileurl = './' . urlencode($filename);
                   3914:
                   3915:   foreach my $sym (split (", ", $tags)) {
                   3916:     $ret .= ",\n" if ($ret ne "");
3.136     scop     3917:     $ret .= &link(htmlquote($sym),
                   3918:                   $fileurl . toggleQuery('only_with_tag', $sym));
3.120     scop     3919:   }
                   3920:   return "$ret\n";
3.1       knu      3921: }
                   3922:
                   3923: #
3.81      knu      3924: # See if a module is listed in the config file's @HideModules list.
3.1       knu      3925: #
3.120     scop     3926: sub forbidden_module($)
                   3927: {
                   3928:   my ($module) = @_;
                   3929:   local $_;
                   3930:
                   3931:   for (@HideModules) {
                   3932:     return 1 if $module =~ $_;
                   3933:   }
                   3934:   return 0;
                   3935: }
                   3936:
                   3937: sub forbidden_file($)
                   3938: {
                   3939:   my ($path) = @_;
                   3940:   $path = substr($path, length($cvsroot) + 1);
                   3941:   local $_;
                   3942:   for (@ForbiddenFiles) {
                   3943:     return 1 if $path =~ $_;
                   3944:   }
                   3945:   return 0;
3.129     scop     3946: }
                   3947:
3.25      knu      3948:
                   3949: # Close the GZIP handle remove the tie.
                   3950:
3.120     scop     3951: sub gzipclose
                   3952: {
                   3953:   if ($gzip_open) {
                   3954:     select(STDOUT);
                   3955:     close(GZIP);
                   3956:     untie *GZIP;
                   3957:     $gzip_open = 0;
                   3958:   }
3.23      knu      3959: }
                   3960:
                   3961: # implement a gzipped file handle via the Compress:Zlib compression
                   3962: # library.
                   3963:
                   3964: sub MAGIC1() { 0x1f }
                   3965: sub MAGIC2() { 0x8b }
3.80      knu      3966: sub OSCODE() { 3 }
3.23      knu      3967:
3.120     scop     3968: sub TIEHANDLE
                   3969: {
                   3970:   my ($class, $out) = @_;
                   3971:   my ($d) = Compress::Zlib::deflateInit(
                   3972:     -Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
                   3973:     -WindowBits => -Compress::Zlib::MAX_WBITS()
                   3974:     )
                   3975:     or return undef;
                   3976:   my ($o) = { handle => $out,
                   3977:               dh     => $d,
                   3978:               crc    => 0,
                   3979:               len    => 0,
                   3980:             };
                   3981:   my ($header) = pack("c10",
                   3982:                       MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
                   3983:                       0, 0, 0, 0, 0, 0, OSCODE);
                   3984:   print {$o->{handle}} $header;
                   3985:   return bless($o, $class);
                   3986: }
                   3987:
                   3988: sub PRINT
                   3989: {
                   3990:   my ($o)   = shift;
3.164     scop     3991:   my ($buf) = join (defined($,) ? $, : "", @_);
3.120     scop     3992:   my ($len) = length($buf);
                   3993:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3994:   print {$o->{handle}} $compressed if defined($compressed);
                   3995:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3996:   $o->{len} += $len;
                   3997:   return $len;
                   3998: }
                   3999:
                   4000: sub PRINTF
                   4001: {
                   4002:   my ($o)   = shift;
                   4003:   my ($fmt) = shift;
                   4004:   my ($buf) = sprintf($fmt, @_);
                   4005:   my ($len) = length($buf);
                   4006:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   4007:   print {$o->{handle}} $compressed if defined($compressed);
                   4008:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   4009:   $o->{len} += $len;
                   4010:   return $len;
                   4011: }
                   4012:
                   4013: sub WRITE
                   4014: {
                   4015:   my ($o, $buf, $len, $off) = @_;
                   4016:   my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   4017:   print {$o->{handle}} $compressed if defined($compressed);
                   4018:   $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   4019:   $o->{len} += $len;
                   4020:   return $len;
                   4021: }
                   4022:
                   4023: sub CLOSE
                   4024: {
                   4025:   my ($o) = @_;
                   4026:   return if !defined($o->{dh});
                   4027:   my ($buf) = $o->{dh}->flush();
                   4028:   $buf .= pack("V V", $o->{crc}, $o->{len});
                   4029:   print {$o->{handle}} $buf;
                   4030:   undef $o->{dh};
                   4031: }
                   4032:
                   4033: sub DESTROY
                   4034: {
                   4035:   my ($o) = @_;
                   4036:   CLOSE($o);
1.1       jfieber  4037: }
3.149     scop     4038:
                   4039: # Local variables:
                   4040: # indent-tabs-mode: nil
                   4041: # cperl-indent-level: 2
                   4042: # End:

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