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Annotation of cvsweb/cvsweb.cgi, Revision 3.35

3.10      knu         1: #!/usr/bin/perl5 -ws
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
3.1       knu         6: #             Bill Fenner      <fenner@FreeBSD.org>   (original work)
                      7: # extended by Henner Zeller    <zeller@think.de>,
3.12      knu         8: #             Henrik Nordstrom <hno@hem.passagen.se>
3.1       knu         9: #             Ken Coar         <coar@Apache.Org>
                     10: #             Dick Balaska     <dick@buckosoft.com>
                     11: #             Akinori MUSHA    <knu@FreeBSD.org>
3.23      knu        12: #             Jens-Uwe Mager   <jum@helios.de>
3.1       knu        13: #
                     14: # Based on:
                     15: # * Bill Fenners cvsweb.cgi revision 1.28 available from:
3.5       knu        16: #   http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
1.1       jfieber    17: #
1.21      wosch      18: # Copyright (c) 1996-1998 Bill Fenner
3.1       knu        19: #           (c) 1998-1999 Henner Zeller
                     20: #          (c) 1999      Henrik Nordstrom
                     21: #          (c) 2000      Akinori MUSHA
1.21      wosch      22: # All rights reserved.
                     23: #
                     24: # Redistribution and use in source and binary forms, with or without
                     25: # modification, are permitted provided that the following conditions
                     26: # are met:
                     27: # 1. Redistributions of source code must retain the above copyright
                     28: #    notice, this list of conditions and the following disclaimer.
                     29: # 2. Redistributions in binary form must reproduce the above copyright
                     30: #    notice, this list of conditions and the following disclaimer in the
                     31: #    documentation and/or other materials provided with the distribution.
                     32: #
                     33: # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     34: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     35: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     36: # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     37: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     38: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     39: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     40: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     41: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     42: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     43: # SUCH DAMAGE.
                     44: #
3.25      knu        45: # $zId: cvsweb.cgi,v 1.103 2000/09/20 17:02:29 jumager Exp $
3.35    ! knu        46: # $Id: cvsweb.cgi,v 3.34 2000/10/10 18:48:59 knu Exp $
1.21      wosch      47: #
3.1       knu        48: ###
                     49:
                     50: use strict;
1.21      wosch      51:
3.1       knu        52: use vars qw (
                     53:     $config $allow_version_select $verbose
                     54:     %CVSROOT %CVSROOTdescr %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
                     55:     %alltags @tabcolors %fileinfo %tags @branchnames %nameprinted
                     56:     %symrev %revsym @allrevisions %date %author @revdisplayorder
3.17      knu        57:     @revisions %state %difflines %log %branchpoint @revorder
                     58:     $prcgi @prcategories $prcategories $mancgi
3.1       knu        59:     $checkoutMagic $doCheckout $scriptname $scriptwhere
3.3       knu        60:     $where $pathinfo $Browser $nofilelinks $maycompress @stickyvars
                     61:     %funcline_regexp $is_mod_perl
3.34      knu        62:     $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
3.1       knu        63:     %input $query $barequery $sortby $bydate $byrev $byauthor
                     64:     $bylog $byfile $hr_default $logsort $cvstree $cvsroot
                     65:     $mimetype $defaultTextPlain $defaultViewable $allow_compress
                     66:     $GZIPBIN $backicon $diricon $fileicon $fullname $newname
3.26      knu        67:     $cvstreedefault $body_tag $body_tag_for_src
                     68:     $logo $defaulttitle $address
                     69:     $long_intro $short_instruction $shortLogLen
3.1       knu        70:     $show_author $dirtable $tablepadding $columnHeaderColorDefault
3.3       knu        71:     $columnHeaderColorSorted $hr_breakable $showfunc $hr_ignwhite
3.1       knu        72:     $hr_ignkeysubst $diffcolorHeading $diffcolorEmpty $diffcolorRemove
                     73:     $diffcolorChange $diffcolorAdd $diffcolorDarkChange $difffontface
                     74:     $difffontsize $inputTextSize $mime_types $allow_annotate
                     75:     $allow_markup $use_java_script $open_extern_window
                     76:     $extern_window_width $extern_window_height $edit_option_form
3.35    ! knu        77:     $show_subdir_lastmod $show_log_in_markup $v
3.1       knu        78:     $navigationHeaderColor $tableBorderColor $markupLogColor
                     79:     $tabstop $state $annTable $sel $curbranch @HideModules
                     80:     $module $use_descriptions %descriptions @mytz $dwhere $moddate
3.23      knu        81:     $use_moddate $has_zlib $gzip_open
3.32      knu        82:     $LOG_FILESEPARATOR $LOG_REVSEPARATOR
3.1       knu        83: );
                     84:
3.12      knu        85: sub printDiffSelect($);
                     86: sub findLastModifiedSubdirs(@);
                     87: sub htmlify($;$);
3.20      knu        88: sub spacedHtmlText($;$);
3.12      knu        89: sub link($$);
                     90: sub revcmp($$);
                     91: sub fatal($$);
                     92: sub redirect($);
                     93: sub safeglob($);
                     94: sub getMimeTypeFromSuffix($);
3.24      knu        95: sub head($;$);
                     96: sub scan_directives(@);
3.12      knu        97: sub doAnnotate($$);
                     98: sub doCheckout($$);
                     99: sub cvswebMarkup($$$);
                    100: sub viewable($);
                    101: sub doDiff($$$$$$);
                    102: sub getDirLogs($$@);
                    103: sub readLog($;$);
                    104: sub printLog($;$);
                    105: sub doLog($);
                    106: sub flush_diff_rows($$$$);
                    107: sub human_readable_diff($);
                    108: sub navigateHeader($$$$$);
                    109: sub plural_write($$);
                    110: sub readableTime($$);
                    111: sub clickablePath($$);
                    112: sub chooseCVSRoot();
                    113: sub chooseMirror();
                    114: sub fileSortCmp();
                    115: sub download_url($$;$);
                    116: sub download_link($$$;$);
                    117: sub toggleQuery($$);
                    118: sub urlencode($);
3.35    ! knu       119: sub htmlquote($);
3.12      knu       120: sub http_header(;$);
                    121: sub html_header($);
                    122: sub html_footer();
                    123: sub link_tags($);
                    124: sub forbidden_module($);
                    125:
3.1       knu       126: ##### Start of Configuration Area ########
3.11      knu       127: use Cwd;
                    128:
3.12      knu       129: # == EDIT this ==
3.28      knu       130: # Locations to search for user configuration, in order:
                    131: for (
                    132:      $ENV{CVSWEB_CONFIG},
3.13      knu       133:      '/usr/local/etc/cvsweb.conf',
3.28      knu       134:      getcwd() . '/cvsweb.conf'
                    135:     ) {
                    136:     $config = $_ if defined($_) && -r $_;
3.11      knu       137: }
3.1       knu       138:
                    139: # == Configuration defaults ==
                    140: # Defaults for configuration variables that shouldn't need
                    141: # to be configured..
                    142: $allow_version_select = 1;
                    143:
                    144: ##### End of Configuration Area   ########
                    145:
                    146: ######## Configuration variables #########
                    147: # These are defined to allow checking with perl -cw
                    148: %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS = %MTYPES =
                    149: %tags = %alltags = @tabcolors = ();
3.28      knu       150: $cvstreedefault = $body_tag = $body_tag_for_src =
3.26      knu       151: $logo = $defaulttitle = $address =
                    152: $long_intro = $short_instruction = $shortLogLen =
3.1       knu       153: $show_author = $dirtable = $tablepadding = $columnHeaderColorDefault =
3.3       knu       154: $columnHeaderColorSorted = $hr_breakable = $showfunc = $hr_ignwhite =
3.1       knu       155: $hr_ignkeysubst = $diffcolorHeading = $diffcolorEmpty = $diffcolorRemove =
                    156: $diffcolorChange = $diffcolorAdd = $diffcolorDarkChange = $difffontface =
                    157: $difffontsize = $inputTextSize = $mime_types = $allow_annotate =
                    158: $allow_markup = $use_java_script = $open_extern_window =
                    159: $extern_window_width = $extern_window_height = $edit_option_form =
3.35    ! knu       160: $show_subdir_lastmod = $show_log_in_markup = $v =
3.12      knu       161: $navigationHeaderColor = $tableBorderColor = $markupLogColor =
3.25      knu       162: $tabstop = $use_moddate = $moddate = $gzip_open = undef;
1.21      wosch     163:
3.32      knu       164: $LOG_FILESEPARATOR = q/^={77}$/;
                    165: $LOG_REVSEPARATOR = q/^-{28}$/;
                    166:
3.1       knu       167: ##### End of configuration variables #####
                    168:
                    169: use Time::Local;
                    170: use IPC::Open2;
1.1       jfieber   171:
3.23      knu       172: # Check if the zlib C library interface is installed, and if yes
                    173: # we can avoid using the extra gzip process.
                    174: eval {
                    175:        require Compress::Zlib;
                    176: };
                    177: $has_zlib = !$@;
                    178:
1.1       jfieber   179: $verbose = $v;
3.1       knu       180: $checkoutMagic = "~checkout~";
3.3       knu       181: $pathinfo = defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    182: $where = $pathinfo;
3.1       knu       183: $doCheckout = ($where =~ /^\/$checkoutMagic/);
                    184: $where =~ s|^/($checkoutMagic)?||;
                    185: $where =~ s|/+$||;
3.3       knu       186: $scriptname = defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    187: $scriptname =~ s|^/?|/|;
3.1       knu       188: $scriptname =~ s|/+$||;
3.3       knu       189: $scriptwhere = $scriptname;
3.1       knu       190: if ($where) {
3.3       knu       191:     $scriptwhere .= '/' . urlencode($where);
3.1       knu       192: }
3.3       knu       193:
                    194: $is_mod_perl = defined($ENV{MOD_PERL});
3.1       knu       195:
                    196: # in lynx, it it very annoying to have two links
                    197: # per file, so disable the link at the icon
                    198: # in this case:
3.12      knu       199: $Browser = $ENV{HTTP_USER_AGENT};
3.34      knu       200: $is_links = ($Browser =~ m`^Links `);
3.5       knu       201: $is_lynx = ($Browser =~ m`^Lynx/`i);
                    202: $is_w3m = ($Browser =~ m`^w3m/`i);
3.3       knu       203: $is_msie = ($Browser =~ m`MSIE`);
3.5       knu       204: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       205:
3.34      knu       206: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       207:
                    208: $nofilelinks = $is_textbased;
3.1       knu       209:
                    210: # newer browsers accept gzip content encoding
                    211: # and state this in a header
                    212: # (netscape did always but didn't state it)
                    213: # It has been reported that these
                    214: #  braindamaged MS-Internet Exploders claim that they
                    215: # accept gzip .. but don't in fact and
                    216: # display garbage then :-/
3.23      knu       217: # Turn off gzip if running under mod_perl and no zlib is available,
                    218: # piping does not work as expected inside the server.
3.25      knu       219: $maycompress = (((defined($ENV{HTTP_ACCEPT_ENCODING})
                    220:                 && $ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`)
3.12      knu       221:                 || $is_mozilla3)
                    222:                && !$is_msie
3.23      knu       223:                && !($is_mod_perl && !$has_zlib));
3.1       knu       224:
                    225: # put here the variables we need in order
                    226: # to hold our state - they will be added (with
3.12      knu       227: # their current value) to any link/query string
3.1       knu       228: # you construct
3.6       knu       229: @stickyvars = qw(cvsroot hideattic sortby logsort f only_with_tag);
1.1       jfieber   230:
3.1       knu       231: if (-f $config) {
3.27      knu       232:    do $config
                    233:      || &fatal("500 Internal Error",
                    234:               sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
                    235:                       $config, &htmlify($@)));
                    236: } else {
3.1       knu       237:    &fatal("500 Internal Error",
                    238:          'Configuration not found.  Set the variable <code>$config</code> '
                    239:           . 'in cvsweb.cgi, or the environment variable '
                    240:           . '<code>CVSWEB_CONFIG</code>, to your <b>cvsweb.conf</b> '
                    241:           . 'configuration file first.');
                    242: }
                    243:
                    244: undef %input;
3.3       knu       245: $query = $ENV{QUERY_STRING};
                    246:
3.12      knu       247: if (defined($query) && $query ne '') {
1.9       fenner    248:     foreach (split(/&/, $query)) {
1.7       fenner    249:        s/%(..)/sprintf("%c", hex($1))/ge;      # unquote %-quoted
                    250:        if (/(\S+)=(.*)/) {
3.1       knu       251:            $input{$1} = $2 if ($2 ne "");
                    252:        }
                    253:        else {
1.7       fenner    254:            $input{$_}++;
                    255:        }
                    256:     }
                    257: }
1.10      wosch     258:
3.12      knu       259: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       260: $input{only_with_tag} = $input{only_on_branch}
                    261:     if (defined($input{only_on_branch}));
1.10      wosch     262:
3.1       knu       263: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     264:
3.1       knu       265: foreach (keys %DEFAULTVALUE)
                    266: {
                    267:     # replace not given parameters with the default parameters
                    268:     if (!defined($input{$_}) || $input{$_} eq "") {
                    269:        # Empty Checkboxes in forms return -- nothing. So we define a helper
                    270:        # variable in these forms (copt) which indicates that we just set
                    271:        # parameters with a checkbox
                    272:        if (!defined($input{"copt"})) {
                    273:            # 'copt' isn't defined --> empty input is not the result
                    274:            # of empty input checkbox --> set default
                    275:            $input{$_} = $DEFAULTVALUE{$_} if (defined($DEFAULTVALUE{$_}));
                    276:        }
                    277:        else {
                    278:            # 'copt' is defined -> the result of empty input checkbox
                    279:            # -> set to zero (disable) if default is a boolean (0|1).
                    280:            $input{$_} = 0
                    281:                if (defined($DEFAULTVALUE{$_})
                    282:                    && ($DEFAULTVALUE{$_} eq "0" || $DEFAULTVALUE{$_} eq "1"));
                    283:        }
1.10      wosch     284:     }
                    285: }
3.12      knu       286:
3.1       knu       287: $barequery = "";
3.31      knu       288: my @barequery;
3.1       knu       289: foreach (@stickyvars) {
                    290:     # construct a query string with the sticky non default parameters set
3.12      knu       291:     if (defined($input{$_}) && $input{$_} ne '' &&
3.4       knu       292:        !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_})) {
3.32      knu       293:        push @barequery, join('=', urlencode($_), urlencode($input{$_}));
3.1       knu       294:     }
                    295: }
                    296: # is there any query ?
3.31      knu       297: if (@barequery) {
3.35    ! knu       298:     $barequery = join('&', @barequery);
3.1       knu       299:     $query = "?$barequery";
3.35    ! knu       300:     $barequery = "&$barequery";
3.1       knu       301: }
                    302: else {
                    303:     $query = "";
                    304: }
3.31      knu       305: undef @barequery;
3.1       knu       306:
                    307: # get actual parameters
                    308: $sortby = $input{"sortby"};
                    309: $bydate = 0;
                    310: $byrev = 0;
                    311: $byauthor = 0;
                    312: $bylog = 0;
                    313: $byfile = 0;
                    314: if ($sortby eq "date") {
                    315:     $bydate = 1;
                    316: }
                    317: elsif ($sortby eq "rev") {
                    318:     $byrev = 1;
                    319: }
                    320: elsif ($sortby eq "author") {
                    321:     $byauthor = 1;
                    322: }
                    323: elsif ($sortby eq "log") {
                    324:     $bylog = 1;
                    325: }
                    326: else {
                    327:     $byfile = 1;
                    328: }
                    329:
                    330: $hr_default = $input{'f'} eq 'h';
                    331:
3.3       knu       332: $logsort = $input{'logsort'};
1.10      wosch     333:
1.12      fenner    334:
3.1       knu       335: ## Default CVS-Tree
                    336: if (!defined($CVSROOT{$cvstreedefault})) {
                    337:    &fatal("500 Internal Error",
                    338:          "<code>\$cvstreedefault</code> points to a repository "
                    339:          . "not defined in <code>%CVSROOT</code> "
                    340:          . "(edit your configuration file $config)");
                    341: }
                    342:
                    343: # alternate CVS-Tree, configured in cvsweb.conf
                    344: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
                    345:     $cvstree = $input{'cvsroot'};
                    346: } else {
                    347:     $cvstree = $cvstreedefault;
1.10      wosch     348: }
                    349:
3.1       knu       350: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     351:
3.1       knu       352: # create icons out of description
3.32      knu       353: my $k;
3.31      knu       354: foreach $k (keys %ICONS) {
3.1       knu       355:     no strict 'refs';
                    356:     my ($itxt,$ipath,$iwidth,$iheight) = @{$ICONS{$k}};
                    357:     if ($ipath) {
3.35    ! knu       358:        ${"${k}icon"} = sprintf('<IMG SRC="%s" ALT="%s" BORDER="0" WIDTH="%d" HEIGHT="%d">',
        !           359:                                htmlquote($ipath), htmlquote($itxt), $iwidth, $iheight)
1.16      wosch     360:     }
3.1       knu       361:     else {
3.3       knu       362:        ${"${k}icon"} = $itxt;
1.24      wosch     363:     }
                    364: }
3.31      knu       365: undef $k;
1.24      wosch     366:
3.27      knu       367: my $config_cvstree = "$config-$cvstree";
                    368:
3.1       knu       369: # Do some special configuration for cvstrees
3.27      knu       370: if (-f $config_cvstree) {
                    371:    do $config_cvstree
                    372:      || &fatal("500 Internal Error",
                    373:               sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
                    374:                       $config_cvstree, &htmlify($@)));
                    375: }
3.31      knu       376: undef $config_cvstree;
3.1       knu       377:
                    378: $prcategories = '(?:' . join('|', @prcategories) . ')';
3.17      knu       379: $prcgi .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     380:
3.1       knu       381: $fullname = $cvsroot . '/' . $where;
                    382: $mimetype = &getMimeTypeFromSuffix ($fullname);
                    383: $defaultTextPlain = ($mimetype eq "text/plain");
                    384: $defaultViewable = $allow_markup && viewable($mimetype);
                    385:
                    386: # search for GZIP if compression allowed
                    387: # We've to find out if the GZIP-binary exists .. otherwise
                    388: # ge get an Internal Server Error if we try to pipe the
3.12      knu       389: # output through the nonexistent gzip ..
3.1       knu       390: # any more elegant ways to prevent this are welcome!
3.23      knu       391: if ($allow_compress && $maycompress && !$has_zlib) {
3.1       knu       392:     foreach (split(/:/, $ENV{PATH})) {
                    393:        if (-x "$_/gzip") {
                    394:            $GZIPBIN = "$_/gzip";
                    395:            last;
1.16      wosch     396:        }
                    397:     }
                    398: }
                    399:
3.1       knu       400: if (-d $fullname) {
                    401:     #
                    402:     # ensure, that directories always end with (exactly) one '/'
                    403:     # to allow relative URL's. If they're not, make a redirect.
                    404:     ##
                    405:     if (!($pathinfo =~ m|/$|) || ($pathinfo =~ m |/{2,}$|)) {
                    406:        redirect ($scriptwhere . '/' . $query);
                    407:     }
                    408:     else {
                    409:        $where .= '/';
                    410:        $scriptwhere .= '/';
                    411:     }
                    412: }
                    413:
                    414: if (!-d $cvsroot) {
                    415:     &fatal("500 Internal Error",'$CVSROOT not found!<P>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
                    416: }
                    417:
                    418: #
                    419: # See if the module is in our forbidden list.
                    420: #
                    421: $where =~ m:([^/]*):;
                    422: $module = $1;
                    423: if ($module && &forbidden_module($module)) {
                    424:     &fatal("403 Forbidden", "Access to $where forbidden.");
                    425: }
                    426: ##############################
                    427: # View a directory
                    428: ###############################
                    429: elsif (-d $fullname) {
                    430:        my $dh = do {local(*DH);};
                    431:        opendir($dh, $fullname) || &fatal("404 Not Found","$where: $!");
                    432:        my @dir = readdir($dh);
                    433:        closedir($dh);
                    434:        my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    435:            if ($show_subdir_lastmod);
                    436:        getDirLogs($cvsroot,$where,@subLevelFiles);
                    437:
                    438:        if ($where eq '/') {
3.3       knu       439:            html_header($defaulttitle);
3.2       knu       440:            $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
3.1       knu       441:            print $long_intro;
                    442:        }
                    443:        else {
3.3       knu       444:            html_header($where);
3.1       knu       445:            print $short_instruction;
                    446:        }
                    447:
                    448:        my $descriptions;
                    449:        if (($use_descriptions) && open (DESC, "<$cvsroot/CVSROOT/descriptions")) {
                    450:            while (<DESC>) {
                    451:                chomp;
                    452:                my ($dir,$description) = /(\S+)\s+(.*)/;
                    453:                $descriptions{$dir} = $description;
                    454:            }
                    455:        }
                    456:
                    457:        print "<P><a name=\"dirlist\"></a>\n";
                    458:        # give direct access to dirs
                    459:        if ($where eq '/') {
                    460:            chooseMirror();
                    461:            chooseCVSRoot();
                    462:        }
                    463:        else {
                    464:            print "<p>Current directory: <b>", &clickablePath($where,0), "</b>\n";
                    465:
                    466:            print "<P>Current tag: <B>", $input{only_with_tag}, "</b>\n" if
                    467:                $input{only_with_tag};
1.16      wosch     468:
1.1       jfieber   469:        }
3.12      knu       470:
3.1       knu       471:
                    472:        print "<HR NOSHADE>\n";
1.1       jfieber   473:        # Using <MENU> in this manner violates the HTML2.0 spec but
                    474:        # provides the results that I want in most browsers.  Another
                    475:        # case of layout spooging up HTML.
3.12      knu       476:
3.1       knu       477:        my $infocols = 0;
                    478:        if ($dirtable) {
                    479:            if (defined($tableBorderColor)) {
                    480:                # Can't this be done by defining the border for the inner table?
                    481:                print "<table border=0 cellpadding=0 width=\"100%\"><tr><td bgcolor=\"$tableBorderColor\">";
                    482:            }
                    483:            print "<table  width=\"100%\" border=0 cellspacing=1 cellpadding=$tablepadding>\n";
                    484:            $infocols++;
3.12      knu       485:            print "<tr><th align=left bgcolor=\"" . (($byfile) ?
                    486:                                                   $columnHeaderColorSorted :
3.1       knu       487:                                                   $columnHeaderColorDefault) . "\">";
3.35    ! knu       488:            if ($byfile) {
        !           489:                print 'File';
        !           490:            } else {
        !           491:                print &link('File', sprintf('./%s#dirlist',
        !           492:                                            &toggleQuery("sortby", "file")));
        !           493:            }
3.1       knu       494:            print "</th>";
                    495:            # do not display the other column-headers, if we do not have any files
                    496:            # with revision information:
                    497:            if (scalar(%fileinfo)) {
                    498:                $infocols++;
3.12      knu       499:                print "<th align=left bgcolor=\"" . (($byrev) ?
                    500:                                                   $columnHeaderColorSorted :
3.1       knu       501:                                                   $columnHeaderColorDefault) . "\">";
3.35    ! knu       502:                if ($byrev) {
        !           503:                    print 'Rev.';
        !           504:                } else {
        !           505:                    print &link('Rev.', sprintf('./%s#dirlist',
        !           506:                                                &toggleQuery("sortby", "rev")));
        !           507:                }
3.1       knu       508:                print "</th>";
                    509:                $infocols++;
3.12      knu       510:                print "<th align=left bgcolor=\"" . (($bydate) ?
                    511:                                                   $columnHeaderColorSorted :
3.1       knu       512:                                                   $columnHeaderColorDefault) . "\">";
3.35    ! knu       513:                if ($bydate) {
        !           514:                    print 'Age';
        !           515:                } else {
        !           516:                    print &link('Age', sprintf('./%s#dirlist',
        !           517:                                                &toggleQuery("sortby", "date")));
        !           518:                }
3.1       knu       519:                print "</th>";
                    520:                if ($show_author) {
                    521:                    $infocols++;
3.12      knu       522:                    print "<th align=left bgcolor=\"" . (($byauthor) ?
                    523:                                                   $columnHeaderColorSorted :
3.1       knu       524:                                                   $columnHeaderColorDefault) . "\">";
3.35    ! knu       525:                    if ($byauthor) {
        !           526:                        print 'Author';
        !           527:                    } else {
        !           528:                        print &link('Author', sprintf('./%s#dirlist',
        !           529:                                                      &toggleQuery("sortby", "author")));
        !           530:                    }
3.1       knu       531:                    print "</th>";
                    532:                }
                    533:                $infocols++;
3.12      knu       534:                print "<th align=left bgcolor=\"" . (($bylog) ?
                    535:                                               $columnHeaderColorSorted :
3.1       knu       536:                                               $columnHeaderColorDefault) . "\">";
3.35    ! knu       537:                if ($bylog) {
        !           538:                    print 'Last log entry';
        !           539:                } else {
        !           540:                    print &link('Last log entry', sprintf('./%s#dirlist',
        !           541:                                                  &toggleQuery("sortby", "log")));
        !           542:                }
3.1       knu       543:                print "</th>";
                    544:            }
                    545:            elsif ($use_descriptions) {
                    546:                print "<th align=left bgcolor=\"". $columnHeaderColorDefault . "\">";
                    547:                print "Description";
                    548:                $infocols++;
                    549:            }
                    550:            print "</tr>\n";
                    551:        }
                    552:        else {
                    553:            print "<menu>\n";
                    554:        }
                    555:        my $dirrow = 0;
3.12      knu       556:
3.1       knu       557:        my $i;
1.9       fenner    558:        lookingforattic:
                    559:        for ($i = 0; $i <= $#dir; $i++) {
                    560:                if ($dir[$i] eq "Attic") {
3.1       knu       561:                    last lookingforattic;
1.9       fenner    562:                }
                    563:        }
3.1       knu       564:        if (!$input{'hideattic'} && ($i <= $#dir) &&
                    565:            opendir($dh, $fullname . "/Attic")) {
                    566:            splice(@dir, $i, 1,
                    567:                        grep((s|^|Attic/|,!m|/\.|), readdir($dh)));
                    568:            closedir($dh);
1.9       fenner    569:        }
3.1       knu       570:
3.35    ! knu       571:        my $hideAtticToggleLink = $input{'hideattic'} ? '' :
        !           572:          &link('[Hide]', sprintf('./%s#dirlist',
        !           573:                                  &toggleQuery ("hideattic")));
3.1       knu       574:
1.9       fenner    575:        # Sort without the Attic/ pathname.
3.1       knu       576:        # place directories first
                    577:
                    578:        my $attic;
                    579:        my $url;
                    580:        my $fileurl;
                    581:        my $filesexists;
                    582:        my $filesfound;
                    583:
                    584:        foreach (sort { &fileSortCmp } @dir) {
1.1       jfieber   585:            if ($_ eq '.') {
                    586:                next;
                    587:            }
1.19      wosch     588:            # ignore CVS lock and stale NFS files
3.1       knu       589:            next if (/^#cvs\.|^,|^\.nfs/);
                    590:
                    591:            # Check whether to show the CVSROOT path
                    592:            next if ($input{'hidecvsroot'} && ($_ eq 'CVSROOT'));
                    593:
                    594:            # Check whether the module is in the restricted list
                    595:            next if ($_ && &forbidden_module($_));
                    596:
                    597:            # Ignore non-readable files
                    598:            next if ($input{'hidenonreadable'} && !(-r "$fullname/$_"));
1.18      wosch     599:
1.9       fenner    600:            if (s|^Attic/||) {
3.1       knu       601:                $attic  = " (in the Attic)&nbsp;" . $hideAtticToggleLink;
                    602:            }
                    603:            else {
1.9       fenner    604:                $attic = "";
                    605:            }
3.1       knu       606:
                    607:            if ($_ eq '..' || -d "$fullname/$_") {
                    608:                next if ($_ eq '..' && $where eq '/');
                    609:                my ($rev,$date,$log,$author,$filename) = @{$fileinfo{$_}}
                    610:                    if (defined($fileinfo{$_}));
                    611:                print "<tr bgcolor=\"" . @tabcolors[$dirrow%2] . "\"><td>" if ($dirtable);
                    612:                if ($_ eq '..') {
                    613:                    $url = "../" . $query;
                    614:                    if ($nofilelinks) {
                    615:                        print $backicon;
                    616:                    }
                    617:                    else {
3.35    ! knu       618:                        print &link($backicon, $url);
3.1       knu       619:                    }
3.35    ! knu       620:                    print " ", &link("Previous Directory", $url);
3.1       knu       621:                }
                    622:                else {
                    623:                    $url = urlencode($_) . '/' . $query;
                    624:                    print "<A NAME=\"$_\"></A>";
                    625:                    if ($nofilelinks) {
                    626:                        print $diricon;
                    627:                    }
                    628:                    else {
3.35    ! knu       629:                        print &link($diricon, $url);
3.1       knu       630:                    }
3.35    ! knu       631:                    print " ", &link("$_/", $url), $attic;
3.1       knu       632:                    if ($_ eq "Attic") {
3.35    ! knu       633:                        print "&nbsp; ";
        !           634:                        print &link("[Don't hide]", sprintf('./%s#dirlist',
        !           635:                                                            &toggleQuery ("hideattic")));
3.1       knu       636:                    }
3.12      knu       637:                }
3.1       knu       638:                # Show last change in dir
                    639:                if ($filename) {
                    640:                    print "</td><td>&nbsp;</td><td>&nbsp;" if ($dirtable);
                    641:                    if ($date) {
                    642:                        print " <i>" . readableTime(time() - $date,0) . "</i>";
                    643:                    }
                    644:                    if ($show_author) {
                    645:                        print "</td><td>&nbsp;" if ($dirtable);
                    646:                        print $author;
                    647:                    }
                    648:                    print "</td><td>&nbsp;" if ($dirtable);
                    649:                    $filename =~ s%^[^/]+/%%;
                    650:                    print "$filename/$rev";
                    651:                    print "<BR>" if ($dirtable);
                    652:                    if ($log) {
                    653:                        print "&nbsp;<font size=-1>"
                    654:                            . &htmlify(substr($log,0,$shortLogLen));
                    655:                        if (length $log > 80) {
                    656:                            print "...";
                    657:                        }
                    658:                        print "</font>";
                    659:                    }
                    660:                }
                    661:                else {
                    662:                    my ($dwhere) = ($where ne "/" ? $where : "") . $_;
                    663:                    if ($use_descriptions && defined $descriptions{$dwhere}) {
                    664:                        print "<TD COLSPAN=" . ($infocols-1) . ">&nbsp;" if $dirtable;
                    665:                        print $descriptions{$dwhere};
                    666:                    } elsif ($dirtable && $infocols > 1) {
                    667:                        # close the row with the appropriate number of
                    668:                        # columns, so that the vertical seperators are visible
                    669:                        my($cols) = $infocols;
                    670:                        while ($cols > 1) {
                    671:                            print "</td><td>&nbsp;";
                    672:                            $cols--;
                    673:                        }
                    674:                    }
                    675:                }
                    676:                if ($dirtable) {
                    677:                    print "</td></tr>\n";
                    678:                }
                    679:                else {
                    680:                    print "<br>\n";
                    681:                }
                    682:                $dirrow++;
1.9       fenner    683:            }
3.1       knu       684:            elsif (s/,v$//) {
                    685:                $fileurl = ($attic ? "Attic/" : "") . urlencode($_);
                    686:                $url = $fileurl . $query;
                    687:                my $rev = '';
                    688:                my $date = '';
                    689:                my $log = '';
                    690:                my $author = '';
                    691:                $filesexists++;
                    692:                next if (!defined($fileinfo{$_}));
                    693:                ($rev,$date,$log,$author) = @{$fileinfo{$_}};
                    694:                $filesfound++;
                    695:                print "<tr bgcolor=\"" . @tabcolors[$dirrow%2] . "\"><td>" if ($dirtable);
                    696:                print "<A NAME=\"$_\"></A>";
                    697:                if ($nofilelinks) {
                    698:                    print $fileicon;
                    699:                }
                    700:                else {
                    701:                    print &link($fileicon,$url);
                    702:                }
                    703:                print " ", &link($_, $url), $attic;
                    704:                print "</td><td>&nbsp;" if ($dirtable);
                    705:                download_link($fileurl,
3.35    ! knu       706:                              $rev, $rev,
        !           707:                              $defaultViewable ? "text/x-cvsweb-markup" : undef);
3.1       knu       708:                print "</td><td>&nbsp;" if ($dirtable);
                    709:                if ($date) {
                    710:                    print " <i>" . readableTime(time() - $date,0) . "</i>";
                    711:                }
                    712:                if ($show_author) {
                    713:                    print "</td><td>&nbsp;" if ($dirtable);
                    714:                    print $author;
                    715:                }
                    716:                print "</td><td>&nbsp;" if ($dirtable);
                    717:                if ($log) {
                    718:                    print " <font size=-1>" . &htmlify(substr($log,0,$shortLogLen));
                    719:                    if (length $log > 80) {
                    720:                        print "...";
                    721:                    }
                    722:                    print "</font>";
                    723:                }
                    724:                print "</td>" if ($dirtable);
                    725:                print (($dirtable) ? "</tr>" : "<br>");
                    726:                $dirrow++;
                    727:            }
                    728:            print "\n";
                    729:        }
                    730:        if ($dirtable && defined($tableBorderColor)) {
                    731:            print "</td></tr></table>";
                    732:        }
                    733:        print "". ($dirtable == 1) ? "</table>" : "</menu>" . "\n";
3.12      knu       734:
3.1       knu       735:        if ($filesexists && !$filesfound) {
                    736:            print "<P><B>NOTE:</B> There are $filesexists files, but none matches the current tag ($input{only_with_tag})\n";
                    737:        }
                    738:        if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                    739:            %tags = %alltags
                    740:        }
3.12      knu       741:        if (scalar %tags
                    742:            || $input{only_with_tag}
3.1       knu       743:            || $edit_option_form
                    744:            || defined($input{"options"})) {
                    745:            print "<hr size=1 NOSHADE>";
                    746:        }
                    747:
                    748:        if (scalar %tags || $input{only_with_tag}) {
                    749:            print "<FORM METHOD=\"GET\" ACTION=\"./\">\n";
                    750:            foreach my $var (@stickyvars) {
                    751:                print "<INPUT TYPE=HIDDEN NAME=\"$var\" VALUE=\"$input{$var}\">\n"
                    752:                    if (defined($input{$var})
3.23      knu       753:                        && (!defined($DEFAULTVALUE{$var})
                    754:                            || $input{$var} ne $DEFAULTVALUE{$var})
3.1       knu       755:                        && $input{$var} ne ""
                    756:                        && $var ne "only_with_tag");
                    757:            }
                    758:            print "Show only files with tag:\n";
                    759:            print "<SELECT NAME=only_with_tag";
                    760:            print " onchange=\"submit()\"" if ($use_java_script);
                    761:            print ">";
                    762:            print "<OPTION VALUE=\"\">All tags / default branch\n";
                    763:            foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.12      knu       764:                print "<OPTION",defined($input{only_with_tag}) &&
3.13      knu       765:                       $input{only_with_tag} eq $tag ? " SELECTED" : "",
3.1       knu       766:                       ">$tag\n";
                    767:            }
                    768:            print "</SELECT>\n";
                    769:            print "<INPUT TYPE=SUBMIT VALUE=\"Go\">\n";
1.9       fenner    770:            print "</FORM>\n";
                    771:        }
3.1       knu       772:        my $formwhere = $scriptwhere;
                    773:        $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                    774:
                    775:        if ($edit_option_form || defined($input{"options"})) {
                    776:            print "<FORM METHOD=\"GET\" ACTION=\"${formwhere}\">\n";
                    777:            print "<INPUT TYPE=HIDDEN NAME=\"copt\" VALUE=\"1\">\n";
                    778:            if ($cvstree ne $cvstreedefault) {
                    779:                print "<INPUT TYPE=HIDDEN NAME=\"cvsroot\" VALUE=\"$cvstree\">\n";
                    780:            }
                    781:            print "<center><table cellpadding=0 cellspacing=0>";
                    782:            print "<tr bgcolor=\"$columnHeaderColorDefault\"><th colspan=2>Preferences</th></tr>";
                    783:            print "<tr><td>Sort files by <SELECT name=\"sortby\">";
                    784:            print "<OPTION VALUE=\"\">File";
                    785:            print "<OPTION",$bydate ? " SELECTED" : ""," VALUE=date>Age";
                    786:            print "<OPTION",$byauthor ? " SELECTED" : ""," VALUE=author>Author"
                    787:                if ($show_author);
                    788:            print "<OPTION",$byrev ? " SELECTED" : ""," VALUE=rev>Revision";
                    789:            print "<OPTION",$bylog ? " SELECTED" : ""," VALUE=log>Log message";
                    790:            print "</SELECT></td>";
                    791:            print "<td>revisions by: \n";
                    792:            print "<SELECT NAME=logsort>\n";
                    793:            print "<OPTION VALUE=cvs",$logsort eq "cvs" ? " SELECTED" : "", ">Not sorted";
                    794:            print "<OPTION VALUE=date",$logsort eq "date" ? " SELECTED" : "", ">Commit date";
                    795:            print "<OPTION VALUE=rev",$logsort eq "rev" ? " SELECTED" : "", ">Revision";
                    796:            print "</SELECT></td></tr>";
                    797:            print "<tr><td>Diff format: ";
3.12      knu       798:            printDiffSelect(0);
3.1       knu       799:            print "</td>";
                    800:            print "<td>Show Attic files: ";
3.13      knu       801:            print "<INPUT NAME=hideattic TYPE=CHECKBOX", $input{'hideattic'} ? " CHECKED" : "",
3.1       knu       802:            "></td></tr>\n";
                    803:            print "<tr><td align=center colspan=2><input type=submit value=\"Change Options\">";
                    804:            print "</td></tr></table></center></FORM>\n";
1.12      fenner    805:        }
1.2       jfieber   806:        print &html_footer;
1.1       jfieber   807:        print "</BODY></HTML>\n";
3.12      knu       808:     }
3.1       knu       809:
                    810: ###############################
                    811: # View Files
                    812: ###############################
                    813:     elsif (-f $fullname . ',v') {
                    814:        if (defined($input{'rev'}) || $doCheckout) {
                    815:            &doCheckout($fullname, $input{'rev'});
3.25      knu       816:            gzipclose();
3.1       knu       817:            exit;
                    818:        }
                    819:        if (defined($input{'annotate'}) && $allow_annotate) {
                    820:            &doAnnotate($input{'annotate'});
3.25      knu       821:            gzipclose();
3.1       knu       822:            exit;
                    823:        }
                    824:        if (defined($input{'r1'}) && defined($input{'r2'})) {
                    825:            &doDiff($fullname, $input{'r1'}, $input{'tr1'},
                    826:                    $input{'r2'}, $input{'tr2'}, $input{'f'});
3.25      knu       827:            gzipclose();
3.1       knu       828:            exit;
                    829:        }
                    830:        print("going to dolog($fullname)\n") if ($verbose);
                    831:        &doLog($fullname);
                    832: ##############################
                    833: # View Diff
                    834: ##############################
                    835:     }
                    836:     elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" &&
                    837:           $input{'r1'} && $input{'r2'}) {
                    838:
                    839:        # $where-diff-removal if 'cvs rdiff' is used
                    840:        # .. but 'cvs rdiff'doesn't support some options
                    841:        # rcsdiff does (-w and -p), so it is disabled
                    842:        # $where =~ s/\.diff$//;
                    843:
1.12      fenner    844:        # Allow diffs using the ".diff" extension
                    845:        # so that browsers that default to the URL
                    846:        # for a save filename don't save diff's as
                    847:        # e.g. foo.c
3.1       knu       848:        &doDiff($fullname, $input{'r1'}, $input{'tr1'},
1.12      fenner    849:                $input{'r2'}, $input{'tr2'}, $input{'f'});
3.25      knu       850:        gzipclose();
1.12      fenner    851:        exit;
3.1       knu       852:     }
                    853:     elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| &&
                    854:           -f $newname . ",v") {
1.12      fenner    855:        # The file has been removed and is in the Attic.
                    856:        # Send a redirect pointing to the file in the Attic.
3.1       knu       857:        (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
1.12      fenner    858:        &redirect($newplace);
                    859:        exit;
3.1       knu       860:     }
                    861:     elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
                    862:        http_header("text/plain");
1.12      fenner    863:        print "You matched the following files:\n";
                    864:        print join("\n", @files);
                    865:        # Find the tags from each file
                    866:        # Display a form offering diffs between said tags
3.1       knu       867:     }
                    868:     else {
                    869:        my $fh = do {local(*FH);};
                    870:        my ($xtra, $module);
1.12      fenner    871:        # Assume it's a module name with a potential path following it.
1.13      fenner    872:        $xtra = $& if (($module = $where) =~ s|/.*||);
1.12      fenner    873:        # Is there an indexed version of modules?
3.1       knu       874:        if (open($fh, "$cvsroot/CVSROOT/modules")) {
                    875:            while (<$fh>) {
                    876:                if (/^(\S+)\s+(\S+)/o && $module eq $1
                    877:                    && -d "${cvsroot}/$2" && $module ne $2) {
                    878:                    &redirect($scriptname . '/' . $2 . $xtra);
1.12      fenner    879:                }
3.1       knu       880:            }
1.12      fenner    881:        }
                    882:        &fatal("404 Not Found","$where: no such file or directory");
3.1       knu       883:     }
3.23      knu       884:
3.25      knu       885: gzipclose();
3.1       knu       886: ## End MAIN
                    887:
3.12      knu       888: sub printDiffSelect($) {
3.1       knu       889:     my ($use_java_script) = @_;
                    890:     my ($f) = $input{'f'};
                    891:     print "<SELECT NAME=\"f\"";
                    892:     print " onchange=\"submit()\"" if ($use_java_script);
                    893:     print ">\n";
                    894:     print "<OPTION VALUE=h",$f eq "h" ? " SELECTED" : "", ">Colored Diff";
                    895:     print "<OPTION VALUE=H",$f eq "H" ? " SELECTED" : "", ">Long Colored Diff";
                    896:     print "<OPTION VALUE=u",$f eq "u" ? " SELECTED" : "", ">Unidiff";
                    897:     print "<OPTION VALUE=c",$f eq "c" ? " SELECTED" : "", ">Context Diff";
                    898:     print "<OPTION VALUE=s",$f eq "s" ? " SELECTED" : "", ">Side by Side";
                    899:     print "</SELECT>";
                    900: }
                    901:
3.12      knu       902: sub findLastModifiedSubdirs(@) {
3.1       knu       903:     my (@dirs) = @_;
                    904:     my ($dirname, @files);
                    905:
                    906:     foreach $dirname (@dirs) {
                    907:        next if ($dirname eq ".");
                    908:        next if ($dirname eq "..");
                    909:        my ($dir) = "$fullname/$dirname";
                    910:        next if (!-d $dir);
                    911:
                    912:        my ($lastmod) = undef;
                    913:        my ($lastmodtime) = undef;
                    914:        my $dh = do {local(*DH);};
                    915:
                    916:        opendir($dh,$dir) || next;
                    917:        my (@filenames) = readdir($dh);
                    918:        closedir($dh);
                    919:
                    920:        foreach my $filename (@filenames) {
                    921:            $filename = "$dirname/$filename";
                    922:            my ($file) = "$fullname/$filename";
                    923:            next if ($filename !~ /,v$/ || !-f $file);
                    924:            $filename =~ s/,v$//;
                    925:            my $modtime = -M $file;
                    926:            if (!defined($lastmod) || $modtime < $lastmodtime) {
                    927:                $lastmod = $filename;
                    928:                $lastmodtime = $modtime;
                    929:            }
                    930:        }
                    931:        push(@files, $lastmod) if (defined($lastmod));
                    932:     }
                    933:     return @files;
1.12      fenner    934: }
                    935:
3.12      knu       936: sub htmlify($;$) {
3.35    ! knu       937:        (local $_, my $extra) = @_;
1.12      fenner    938:
3.35    ! knu       939:        $_ = htmlquote($_);
1.12      fenner    940:
3.35    ! knu       941:        # get URL's as link
        !           942:        s`(http|ftp|https)(://[-a-zA-Z0-9%.~:_/]+)([?&]([-a-zA-Z0-9%.~:_]+)=([-a-zA-Z0-9%.~:_])+)*`&link("$1$2$3", "$1$2$3")`ge;        # `
3.1       knu       943:        # get e-mails as link
3.35    ! knu       944:        s`[-a-zA-Z0-9_.]+@([-a-zA-Z0-9]+\.)+[A-Za-z]{2,4}`&link($&, "mailto:$&")`ge;    # `
3.1       knu       945:
3.17      knu       946:        if ($extra) {
3.35    ! knu       947:            # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
3.17      knu       948:            if (defined($prcgi)) {
3.35    ! knu       949:                1 while s`\b(pr[:#]?\s*(?:#?\d+[,\s]\s*)*#?)(\d+)\b`$1 . &link($2, sprintf($prcgi, $2))`ie; # `;
        !           950:                s`\b${prcategories}/(\d+)\b`&link($&, sprintf($prcgi, $1))`igeo;        # `;
3.17      knu       951:            }
                    952:
3.35    ! knu       953:            # get manpage specs as link: "foo.1" "foo(1)"
3.17      knu       954:            if (defined($mancgi)) {
3.35    ! knu       955:                s`\b([a-zA-Z]\w+)(?:\(([0-9n])\)\B|\.([0-9n])\b)`&link($&, sprintf($mancgi, $2 ne '' ? $2 : $3, $1))`ge; # `x;
3.17      knu       956:            }
3.1       knu       957:        }
                    958:
3.35    ! knu       959:        $_;
3.1       knu       960: }
                    961:
3.20      knu       962: sub spacedHtmlText($;$) {
3.12      knu       963:        local $_ = $_[0];
3.20      knu       964:        my $ts = $_[1] || $tabstop;
3.1       knu       965:
3.20      knu       966:        # Cut trailing spaces and tabs
                    967:        s/[ \t]+$//;
3.1       knu       968:
3.22      knu       969:         if (defined($ts)) {
3.20      knu       970:            # Expand tabs
                    971:            1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e
                    972:        }
3.1       knu       973:
                    974:        # replace <tab> and <space> (\001 is to protect us from htmlify)
                    975:        # gzip can make excellent use of this repeating pattern :-)
                    976:        if ($hr_breakable) {
                    977:            # make every other space 'breakable'
3.12      knu       978:            s/  / \001nbsp;/g;                              # 2 * <space>
3.1       knu       979:            # leave single space as it is
3.20      knu       980:        } else {
3.12      knu       981:            s/ /\001nbsp;/g;
1.12      fenner    982:        }
                    983:
3.12      knu       984:        $_ = htmlify($_);
3.1       knu       985:
                    986:        # unescape
3.20      knu       987:        y/\001/&/;
3.1       knu       988:
3.12      knu       989:        return $_;
1.12      fenner    990: }
                    991:
3.12      knu       992: sub link($$) {
3.1       knu       993:        my($name, $where) = @_;
1.12      fenner    994:
3.35    ! knu       995:        sprintf '<A HREF="%s">%s</A>', htmlquote($where), $name;
1.12      fenner    996: }
                    997:
3.12      knu       998: sub revcmp($$) {
3.1       knu       999:        my($rev1, $rev2) = @_;
3.15      knu      1000:
                   1001:        # make no comparison for a tag or a branch
                   1002:        return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1003:
3.1       knu      1004:        my(@r1) = split(/\./, $rev1);
                   1005:        my(@r2) = split(/\./, $rev2);
                   1006:        my($a,$b);
1.12      fenner   1007:
                   1008:        while (($a = shift(@r1)) && ($b = shift(@r2))) {
                   1009:            if ($a != $b) {
                   1010:                return $a <=> $b;
                   1011:            }
                   1012:        }
                   1013:        if (@r1) { return 1; }
                   1014:        if (@r2) { return -1; }
                   1015:        return 0;
                   1016: }
                   1017:
3.12      knu      1018: sub fatal($$) {
3.1       knu      1019:        my($errcode, $errmsg) = @_;
3.3       knu      1020:        if ($is_mod_perl) {
3.1       knu      1021:                Apache->request->status((split(/ /, $errcode))[0]);
                   1022:        }
                   1023:        else {
3.4       knu      1024:                print "Status: $errcode\r\n";
3.1       knu      1025:        }
                   1026:        html_header("Error");
1.12      fenner   1027:        print "Error: $errmsg\n";
                   1028:        print &html_footer;
                   1029:        exit(1);
                   1030: }
                   1031:
3.12      knu      1032: sub redirect($) {
3.1       knu      1033:        my($url) = @_;
3.3       knu      1034:        if ($is_mod_perl) {
3.1       knu      1035:                Apache->request->status(301);
                   1036:                Apache->request->header_out(Location => $url);
                   1037:        }
                   1038:        else {
3.4       knu      1039:                print "Status: 301 Moved\r\n";
                   1040:                print "Location: $url\r\n";
3.1       knu      1041:        }
                   1042:        html_header("Moved");
3.35    ! knu      1043:        print "This document is located ", &link('here', $url), "\n";
1.12      fenner   1044:        print &html_footer;
                   1045:        exit(1);
                   1046: }
                   1047:
3.12      knu      1048: sub safeglob($) {
3.1       knu      1049:        my ($filename) = @_;
                   1050:        my ($dirname);
                   1051:        my (@results);
                   1052:        my $dh = do {local(*DH);};
1.12      fenner   1053:
                   1054:        ($dirname = $filename) =~ s|/[^/]+$||;
                   1055:        $filename =~ s|.*/||;
                   1056:
3.1       knu      1057:        if (opendir($dh, $dirname)) {
                   1058:                my $glob = $filename;
                   1059:                my $t;
1.12      fenner   1060:        #       transform filename from glob to regex.  Deal with:
                   1061:        #       [, {, ?, * as glob chars
                   1062:        #       make sure to escape all other regex chars
                   1063:                $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1064:                $glob =~ s/\*/.*/g;
                   1065:                $glob =~ s/\?/./g;
                   1066:                $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
3.1       knu      1067:                foreach (readdir($dh)) {
1.12      fenner   1068:                        if (/^${glob}$/) {
                   1069:                                push(@results, $dirname . "/" .$_);
                   1070:                        }
                   1071:                }
                   1072:        }
                   1073:
                   1074:        @results;
                   1075: }
                   1076:
3.12      knu      1077: sub getMimeTypeFromSuffix($) {
3.1       knu      1078:     my ($fullname) = @_;
                   1079:     my ($mimetype, $suffix);
                   1080:     my $fh = do {local(*FH);};
                   1081:
                   1082:     ($suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1083:     $mimetype = $MTYPES{$suffix};
                   1084:     $mimetype = $MTYPES{'*'} if (!$mimetype);
3.12      knu      1085:
3.1       knu      1086:     if (!$mimetype && -f $mime_types) {
                   1087:        # okey, this is something special - search the
                   1088:        # mime.types database
                   1089:        open ($fh, "<$mime_types");
                   1090:        while (<$fh>) {
                   1091:            if ($_ =~ /^\s*(\S+\/\S+).*\b$suffix\b/) {
                   1092:                $mimetype = $1;
                   1093:                last;
                   1094:            }
                   1095:        }
                   1096:        close ($fh);
                   1097:     }
3.12      knu      1098:
3.1       knu      1099: # okey, didn't find anything useful ..
                   1100:     if (!($mimetype =~ /\S\/\S/)) {
                   1101:        $mimetype = "text/plain";
                   1102:     }
                   1103:     return $mimetype;
                   1104: }
                   1105:
                   1106: ###############################
3.24      knu      1107: # read first lines like head(1)
                   1108: ###############################
                   1109: sub head($;$) {
                   1110:     my $fh = $_[0];
                   1111:     my $linecount = $_[1] || 10;
                   1112:
                   1113:     my @buf;
                   1114:
                   1115:     if ($linecount > 0) {
                   1116:        my $i;
                   1117:        for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1118:            push @buf, scalar <$fh>;
                   1119:        }
                   1120:     } else {
                   1121:        @buf = <$fh>;
                   1122:     }
                   1123:
                   1124:     @buf;
                   1125: }
                   1126:
                   1127: ###############################
                   1128: # scan vim and Emacs directives
                   1129: ###############################
                   1130: sub scan_directives(@) {
                   1131:     my $ts = undef;
                   1132:
                   1133:     for (@_) {
                   1134:        $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1135:     }
                   1136:
                   1137:     ('tabstop' => $ts);
                   1138: }
                   1139:
                   1140: ###############################
3.1       knu      1141: # show Annotation
                   1142: ###############################
3.12      knu      1143: sub doAnnotate($$) {
3.1       knu      1144:     my ($rev) = @_;
                   1145:     my ($pid);
                   1146:     my ($pathname, $filename);
                   1147:     my $reader = do {local(*FH);};
                   1148:     my $writer = do {local(*FH);};
                   1149:
                   1150:     # make sure the revisions a wellformed, for security
                   1151:     # reasons ..
3.15      knu      1152:     if ($rev =~ /[^\w.]/) {
3.1       knu      1153:        &fatal("404 Not Found",
3.3       knu      1154:                "Malformed query \"$ENV{QUERY_STRING}\"");
3.1       knu      1155:     }
1.12      fenner   1156:
3.1       knu      1157:     ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1158:     ($filename = $where) =~ s/^.*\///;
                   1159:
                   1160:     # this seems to be necessary
                   1161:     $| = 1; $| = 0; # Flush
                   1162:
                   1163:     # this annotate version is based on the
                   1164:     # cvs annotate-demo Perl script by Cyclic Software
                   1165:     # It was written by Cyclic Software, http://www.cyclic.com/, and is in
                   1166:     # the public domain.
                   1167:     # we could abandon the use of rlog, rcsdiff and co using
                   1168:     # the cvsserver in a similiar way one day (..after rewrite)
3.29      knu      1169:     $pid = open2($reader, $writer, "cvs -Rl server") || fatal ("500 Internal Error",
3.1       knu      1170:                                                               "Fatal Error - unable to open cvs for annotation");
3.12      knu      1171:
3.1       knu      1172:     # OK, first send the request to the server.  A simplified example is:
                   1173:     #     Root /home/kingdon/zwork/cvsroot
                   1174:     #     Argument foo/xx
                   1175:     #     Directory foo
                   1176:     #     /home/kingdon/zwork/cvsroot/foo
                   1177:     #     Directory .
                   1178:     #     /home/kingdon/zwork/cvsroot
                   1179:     #     annotate
                   1180:     # although as you can see there are a few more details.
3.12      knu      1181:
3.1       knu      1182:     print $writer "Root $cvsroot\n";
                   1183:     print $writer "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1184:     # Don't worry about sending valid-requests, the server just needs to
                   1185:     # support "annotate" and if it doesn't, there isn't anything to be done.
                   1186:     print $writer "UseUnchanged\n";
                   1187:     print $writer "Argument -r\n";
                   1188:     print $writer "Argument $rev\n";
                   1189:     print $writer "Argument $where\n";
                   1190:
                   1191:     # The protocol requires us to fully fake a working directory (at
                   1192:     # least to the point of including the directories down to the one
                   1193:     # containing the file in question).
                   1194:     # So if $where is "dir/sdir/file", then @dirs will be ("dir","sdir","file")
3.3       knu      1195:     my @dirs = split('/', $where);
3.1       knu      1196:     my $path = "";
                   1197:     foreach (@dirs) {
                   1198:        if ($path eq "") {
                   1199:            # In our example, $_ is "dir".
                   1200:            $path = $_;
3.12      knu      1201:        }
3.1       knu      1202:        else {
3.3       knu      1203:            print $writer "Directory $path\n";
                   1204:            print $writer "$cvsroot/$path\n";
3.1       knu      1205:            # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1206:            # And the next time, "file" and "dir/sdir/file" (which then gets
                   1207:            # ignored, because we don't need to send Directory for the file).
3.3       knu      1208:             $path .= "/$_";
3.1       knu      1209:        }
                   1210:     }
                   1211:     # And the last "Directory" before "annotate" is the top level.
                   1212:     print $writer "Directory .\n";
                   1213:     print $writer "$cvsroot\n";
3.12      knu      1214:
3.1       knu      1215:     print $writer "annotate\n";
                   1216:     # OK, we've sent our command to the server.  Thing to do is to
                   1217:     # close the writer side and get all the responses.  If "cvs server"
                   1218:     # were nicer about buffering, then we could just leave it open, I think.
                   1219:     close ($writer) || die "cannot close: $!";
3.12      knu      1220:
3.30      knu      1221:     http_header();
                   1222:
                   1223:     navigateHeader($scriptwhere,$pathname,$filename,$rev, "annotate");
                   1224:     print "<h3 align=center>Annotation of $pathname$filename, Revision $rev</h3>\n";
                   1225:
3.1       knu      1226:     # Ready to get the responses from the server.
                   1227:     # For example:
                   1228:     #     E Annotations for foo/xx
                   1229:     #     E ***************
3.12      knu      1230:     #     M 1.3          (kingdon  06-Sep-97): hello
3.1       knu      1231:     #     ok
                   1232:     my ($lineNr) = 0;
                   1233:     my ($oldLrev, $oldLusr) = ("", "");
                   1234:     my ($revprint, $usrprint);
                   1235:     if ($annTable) {
                   1236:        print "<table border=0 cellspacing=0 cellpadding=0>\n";
                   1237:     }
                   1238:     else {
                   1239:        print "<pre>";
                   1240:     }
3.24      knu      1241:
                   1242:     # prefetch several lines
                   1243:     my @buf = head($reader);
                   1244:
                   1245:     my %d = scan_directives(@buf);
                   1246:
                   1247:     while (@buf || !eof($reader)) {
                   1248:        $_ = @buf ? shift @buf : <$reader>;
                   1249:
3.1       knu      1250:        my @words = split;
                   1251:        # Adding one is for the (single) space which follows $words[0].
                   1252:        my $rest = substr ($_, length ($words[0]) + 1);
                   1253:        if ($words[0] eq "E") {
                   1254:            next;
                   1255:        }
                   1256:        elsif ($words[0] eq "M") {
                   1257:            $lineNr++;
3.30      knu      1258:            (my $lrev = substr($_, 2, 13)) =~ y/ //d;
                   1259:            (my $lusr = substr($_, 16,  9)) =~ y/ //d;
                   1260:            my $line = substr($_, 36);
                   1261:            my $isCurrentRev = ($rev eq $lrev);
3.1       knu      1262:            # we should parse the date here ..
                   1263:            if ($lrev eq $oldLrev) {
3.30      knu      1264:                $revprint = sprintf('%-8s', '');
3.1       knu      1265:            }
                   1266:            else {
3.30      knu      1267:                $revprint = sprintf('%-8s', $lrev);
3.35    ! knu      1268:                $revprint =~ s`\S+`&link($&, "$scriptwhere$barequery#rev$&")`e; # `
3.30      knu      1269:                $oldLusr = '';
3.1       knu      1270:            }
                   1271:            if ($lusr eq $oldLusr) {
3.30      knu      1272:                $usrprint = '';
3.1       knu      1273:            }
                   1274:            else {
                   1275:                $usrprint = $lusr;
                   1276:            }
                   1277:            $oldLrev = $lrev;
                   1278:            $oldLusr = $lusr;
3.12      knu      1279:
3.30      knu      1280:            # Set bold for text-based browsers only - graphical
                   1281:            # browsers show bold fonts a bit wider than regular fonts,
                   1282:            # so it looks irregular.
                   1283:            print "<b>" if ($isCurrentRev && $is_textbased);
                   1284:
3.32      knu      1285:            printf "%s%s %-8s %4d:",
3.30      knu      1286:                    $revprint,
                   1287:                    $isCurrentRev ? '!' : ' ',
                   1288:                    $usrprint,
3.32      knu      1289:                    $lineNr;
3.24      knu      1290:            print spacedHtmlText($line, $d{'tabstop'});
3.30      knu      1291:
                   1292:            print "</b>" if ($isCurrentRev && $is_textbased);
3.1       knu      1293:        }
                   1294:        elsif ($words[0] eq "ok") {
                   1295:            # We could complain about any text received after this, like the
                   1296:            # CVS command line client.  But for simplicity, we don't.
                   1297:        }
                   1298:        elsif ($words[0] eq "error") {
                   1299:            fatal ("500 Internal Error", "Error occured during annotate: <b>$_</b>");
                   1300:        }
                   1301:     }
                   1302:     if ($annTable) {
                   1303:        print "</table>";
                   1304:     }
                   1305:     else {
                   1306:        print "</pre>";
                   1307:     }
                   1308:     close ($reader) || warn "cannot close: $!";
                   1309:     wait;
                   1310: }
                   1311:
                   1312: ###############################
                   1313: # make Checkout
                   1314: ###############################
3.12      knu      1315: sub doCheckout($$) {
3.1       knu      1316:     my ($fullname, $rev) = @_;
                   1317:     my ($mimetype,$revopt);
                   1318:     my $fh = do {local(*FH);};
                   1319:
3.15      knu      1320:     if ($rev eq 'HEAD' || $rev eq '.') {
                   1321:        $rev = undef;
                   1322:     }
                   1323:
3.1       knu      1324:     # make sure the revisions a wellformed, for security
                   1325:     # reasons ..
3.15      knu      1326:     if (defined($rev) && $rev =~ /[^\w.]/) {
3.1       knu      1327:        &fatal("404 Not Found",
3.3       knu      1328:                "Malformed query \"$ENV{QUERY_STRING}\"");
3.1       knu      1329:     }
                   1330:
                   1331:     # get mimetype
                   1332:     if (defined($input{"content-type"}) && ($input{"content-type"} =~ /\S\/\S/)) {
                   1333:        $mimetype = $input{"content-type"}
                   1334:     }
                   1335:     else {
                   1336:        $mimetype = &getMimeTypeFromSuffix($fullname);
                   1337:     }
                   1338:
                   1339:     if (defined($rev)) {
                   1340:        $revopt = "-r$rev";
                   1341:        if ($use_moddate) {
                   1342:            readLog($fullname,$rev);
                   1343:            $moddate=$date{$rev};
                   1344:        }
                   1345:     }
                   1346:     else {
                   1347:        $revopt = "-rHEAD";
                   1348:        if ($use_moddate) {
                   1349:            readLog($fullname);
                   1350:            $moddate=$date{$symrev{HEAD}};
                   1351:        }
                   1352:     }
3.12      knu      1353:
3.1       knu      1354:     ### just for the record:
                   1355:     ### 'cvs co' seems to have a bug regarding single checkout of
                   1356:     ### directories/files having spaces in it;
                   1357:     ### this is an issue that should be resolved on cvs's side
                   1358:     #
                   1359:     # Safely for a child process to read from.
                   1360:     if (! open($fh, "-|")) { # child
                   1361:       open(STDERR, ">&STDOUT"); # Redirect stderr to stdout
3.15      knu      1362:       exec("cvs", "-Rld", $cvsroot, "co", "-p", $revopt, $where);
3.12      knu      1363:     }
3.1       knu      1364: #===================================================================
                   1365: #Checking out squid/src/ftp.c
                   1366: #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1367: #VERS: 1.1.1.28.6.2
                   1368: #***************
                   1369:
                   1370:     # Parse CVS header
                   1371:     my ($revision, $filename, $cvsheader);
                   1372:     while(<$fh>) {
                   1373:        last if (/^\*\*\*\*/);
                   1374:        $revision = $1 if (/^VERS: (.*)$/);
                   1375:        if (/^Checking out (.*)$/) {
                   1376:                $filename = $1;
                   1377:                $filename =~ s/^\.\/*//;
1.12      fenner   1378:        }
3.1       knu      1379:        $cvsheader .= $_;
                   1380:     }
                   1381:     if ($filename ne $where) {
                   1382:        &fatal("500 Internal Error",
                   1383:               "Unexpected output from cvs co: $cvsheader"
                   1384:               . "<p><b>Check whether the directory $cvsroot/CVSROOT exists "
                   1385:               . "and the script has write-access to the CVSROOT/history "
                   1386:               . "file if it exists."
                   1387:               . "<br>The script needs to place lock files in the "
                   1388:               . "directory the file is in as well.</b>");
                   1389:     }
                   1390:     $| = 1;
                   1391:
                   1392:     if ($mimetype eq "text/x-cvsweb-markup") {
                   1393:        &cvswebMarkup($fh,$fullname,$revision);
                   1394:     }
                   1395:     else {
                   1396:        http_header($mimetype);
                   1397:        print <$fh>;
                   1398:     }
                   1399:     close($fh);
                   1400: }
                   1401:
3.12      knu      1402: sub cvswebMarkup($$$) {
3.1       knu      1403:     my ($filehandle,$fullname,$revision) = @_;
                   1404:     my ($pathname, $filename);
                   1405:
                   1406:     ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1407:     ($filename = $where) =~ s/^.*\///;
                   1408:     my ($fileurl) = urlencode($filename);
                   1409:
                   1410:     http_header();
                   1411:
3.12      knu      1412:     navigateHeader($scriptwhere, $pathname, $filename, $revision, "view");
3.1       knu      1413:     print "<HR noshade>";
                   1414:     print "<table width=\"100%\"><tr><td bgcolor=\"$markupLogColor\">";
                   1415:     print "File: ", &clickablePath($where, 1);
3.35    ! knu      1416:     print "&nbsp;(";
        !          1417:     &download_link($fileurl, $revision, "download");
        !          1418:     print ")";
3.1       knu      1419:     if (!$defaultTextPlain) {
3.35    ! knu      1420:        print "&nbsp;(";
        !          1421:        &download_link($fileurl, $revision, "as text",
3.1       knu      1422:               "text/plain");
3.35    ! knu      1423:        print ")";
3.1       knu      1424:     }
                   1425:     print "<BR>\n";
                   1426:     if ($show_log_in_markup) {
                   1427:        readLog($fullname); #,$revision);
                   1428:        printLog($revision,0);
                   1429:     }
                   1430:     else {
                   1431:        print "Version: <B>$revision</B><BR>\n";
                   1432:        print "Tag: <B>", $input{only_with_tag}, "</b><br>\n" if
                   1433:            $input{only_with_tag};
                   1434:     }
                   1435:     print "</td></tr></table>";
                   1436:     my $url = download_url($fileurl, $revision, $mimetype);
                   1437:     print "<HR noshade>";
                   1438:     if ($mimetype =~ /^image/) {
3.35    ! knu      1439:        printf '<IMG SRC="%s"><BR>', htmlquote("$url$barequery");
3.1       knu      1440:     }
3.23      knu      1441:     elsif ($mimetype =~ m%^application/pdf%) {
3.35    ! knu      1442:        printf '<EMBED SRC="%s" WIDTH="100%"><BR>', htmlquote("$url$barequery");
3.23      knu      1443:     }
3.1       knu      1444:     else {
                   1445:        print "<PRE>";
3.24      knu      1446:
                   1447:        # prefetch several lines
                   1448:        my @buf = head($filehandle);
                   1449:
                   1450:        my %d = scan_directives(@buf);
                   1451:
                   1452:        while (@buf || !eof($filehandle)) {
                   1453:            $_ = @buf ? shift @buf : <$filehandle>;
                   1454:
                   1455:            print spacedHtmlText($_, $d{'tabstop'});
1.12      fenner   1456:        }
3.1       knu      1457:        print "</PRE>";
                   1458:     }
1.12      fenner   1459: }
                   1460:
3.1       knu      1461: sub viewable($) {
                   1462:     my ($mimetype) = @_;
                   1463:
3.23      knu      1464:     $mimetype =~ m%^((text|image)/|application/pdf)% ;
3.1       knu      1465: }
                   1466:
                   1467: ###############################
                   1468: # Show Colored Diff
                   1469: ###############################
3.12      knu      1470: sub doDiff($$$$$$) {
3.1       knu      1471:        my($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   1472:         my $fh = do {local(*FH);};
                   1473:        my ($rev1, $rev2, $sym1, $sym2, @difftype, $diffname, $f1, $f2);
1.12      fenner   1474:
                   1475:        if ($r1 =~ /([^:]+)(:(.+))?/) {
                   1476:            $rev1 = $1;
                   1477:            $sym1 = $3;
                   1478:        }
3.1       knu      1479:        if ($r1 eq 'text') {
1.12      fenner   1480:            $rev1 = $tr1;
3.1       knu      1481:            $sym1 = "";
1.12      fenner   1482:        }
                   1483:        if ($r2 =~ /([^:]+)(:(.+))?/) {
                   1484:            $rev2 = $1;
                   1485:            $sym2 = $3;
                   1486:        }
3.1       knu      1487:        if ($r2 eq 'text') {
1.12      fenner   1488:            $rev2 = $tr2;
3.1       knu      1489:            $sym2 = "";
1.12      fenner   1490:        }
3.15      knu      1491:
3.1       knu      1492:        # make sure the revisions a wellformed, for security
                   1493:        # reasons ..
3.15      knu      1494:        if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
1.12      fenner   1495:            &fatal("404 Not Found",
3.3       knu      1496:                    "Malformed query \"$ENV{QUERY_STRING}\"");
1.12      fenner   1497:        }
                   1498: #
                   1499: # rev1 and rev2 are now both numeric revisions.
                   1500: # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   1501: # XXX should we warn about the fact that we do this?
                   1502:        if (&revcmp($rev1,$rev2) > 0) {
3.1       knu      1503:            my ($tmp1, $tmp2) = ($rev1, $sym1);
1.12      fenner   1504:            ($rev1, $sym1) = ($rev2, $sym2);
                   1505:            ($rev2, $sym2) = ($tmp1, $tmp2);
                   1506:        }
3.1       knu      1507:        my $human_readable = 0;
1.12      fenner   1508:        if ($f eq 'c') {
3.1       knu      1509:            @difftype = qw{-c};
1.12      fenner   1510:            $diffname = "Context diff";
3.1       knu      1511:        }
                   1512:        elsif ($f eq 's') {
                   1513:            @difftype = qw{--side-by-side --width=164};
1.12      fenner   1514:            $diffname = "Side by Side";
3.1       knu      1515:        }
                   1516:        elsif ($f eq 'H') {
                   1517:            $human_readable = 1;
                   1518:            @difftype = qw{--unified=15};
                   1519:            $diffname = "Long Human readable";
                   1520:        }
                   1521:        elsif ($f eq 'h') {
                   1522:            @difftype =qw{-u};
                   1523:            $human_readable = 1;
                   1524:            $diffname = "Human readable";
                   1525:        }
                   1526:        elsif ($f eq 'u') {
                   1527:            @difftype = qw{-u};
1.12      fenner   1528:            $diffname = "Unidiff";
                   1529:        }
3.1       knu      1530:        else {
                   1531:            fatal ("400 Bad arguments", "Diff format $f not understood");
                   1532:        }
                   1533:
                   1534:        # apply special options
3.3       knu      1535:        if ($showfunc) {
3.15      knu      1536:            push @difftype, '-p' if $f =~ /^[cHhu]$/;
3.1       knu      1537:
3.3       knu      1538:            my($re1, $re2);
3.1       knu      1539:
3.3       knu      1540:            while (($re1, $re2) = each %funcline_regexp) {
                   1541:                if ($fullname =~ /$re1/) {
                   1542:                    push @difftype, '-F', '$re2';
                   1543:                    last;
3.1       knu      1544:                }
                   1545:            }
3.3       knu      1546:        }
                   1547:        if ($human_readable) {
3.1       knu      1548:            if ($hr_ignwhite) {
                   1549:                push @difftype, '-w';
                   1550:            }
                   1551:            if ($hr_ignkeysubst) {
                   1552:                push @difftype, '-kk';
                   1553:            }
                   1554:        }
                   1555:        if (! open($fh, "-|")) { # child
3.3       knu      1556:            open(STDERR, ">&STDOUT"); # Redirect stderr to stdout
                   1557:            exec("rcsdiff",@difftype,"-r$rev1","-r$rev2",$fullname);
3.1       knu      1558:        }
                   1559:        if ($human_readable) {
                   1560:            http_header();
                   1561:            &human_readable_diff($fh, $rev2);
3.25      knu      1562:            gzipclose();
3.1       knu      1563:            exit;
                   1564:        }
                   1565:        else {
                   1566:            http_header("text/plain");
1.44      knu      1567:        }
1.12      fenner   1568: #
                   1569: #===================================================================
                   1570: #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   1571: #retrieving revision 1.16
                   1572: #retrieving revision 1.17
                   1573: #diff -c -r1.16 -r1.17
                   1574: #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   1575: #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   1576: #
                   1577: # Ideas:
                   1578: # - nuke the stderr output if it's what we expect it to be
                   1579: # - Add "no differences found" if the diff command supplied no output.
                   1580: #
                   1581: #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   1582: #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   1583: # (bogus example, but...)
                   1584: #
3.1       knu      1585:        if (grep { $_ eq '-u'} @difftype) {
1.12      fenner   1586:            $f1 = '---';
                   1587:            $f2 = '\+\+\+';
3.1       knu      1588:        }
                   1589:        else {
1.12      fenner   1590:            $f1 = '\*\*\*';
                   1591:            $f2 = '---';
                   1592:        }
3.1       knu      1593:        while (<$fh>) {
1.12      fenner   1594:            if (m|^$f1 $cvsroot|o) {
                   1595:                s|$cvsroot/||o;
                   1596:                if ($sym1) {
                   1597:                    chop;
                   1598:                    $_ .= " " . $sym1 . "\n";
                   1599:                }
3.1       knu      1600:            }
                   1601:            elsif (m|^$f2 $cvsroot|o) {
1.12      fenner   1602:                s|$cvsroot/||o;
                   1603:                if ($sym2) {
                   1604:                    chop;
                   1605:                    $_ .= " " . $sym2 . "\n";
                   1606:                }
                   1607:            }
                   1608:            print $_;
                   1609:        }
3.1       knu      1610:        close($fh);
1.12      fenner   1611: }
                   1612:
3.1       knu      1613: ###############################
                   1614: # Show Logs ..
                   1615: ###############################
3.12      knu      1616: sub getDirLogs($$@) {
3.1       knu      1617:     my ($cvsroot,$dirname,@otherFiles) = @_;
                   1618:     my ($state,$otherFiles,$tag, $file, $date, $branchpoint, $branch, $log);
                   1619:     my ($rev, $revision, $revwanted, $filename, $head, $author);
                   1620:
                   1621:     $tag = $input{only_with_tag};
                   1622:
                   1623:     my ($DirName) = "$cvsroot/$where";
                   1624:     my (@files, @filetags);
                   1625:     my $fh = do {local(*FH);};
                   1626:
                   1627:     push(@files, &safeglob("$DirName/*,v"));
                   1628:     push(@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
                   1629:     foreach $file (@otherFiles) {
                   1630:        push(@files, "$DirName/$file");
                   1631:     }
                   1632:
                   1633:     # just execute rlog if there are any files
3.12      knu      1634:     if ($#files < 0) {
3.1       knu      1635:        return;
                   1636:     }
                   1637:
                   1638:     if ($tag) {
                   1639:        #can't use -r<tag> as - is allowed in tagnames, but misinterpreated by rlog..
                   1640:        if (! open($fh, "-|")) {
3.7       knu      1641:                open(STDERR, '>/dev/null'); # rlog may complain; ignore.
                   1642:                exec('rlog', @files);
3.1       knu      1643:        }
                   1644:     }
                   1645:     else {
                   1646:        my $kidpid = open($fh, "-|");
                   1647:        if (! $kidpid) {
3.4       knu      1648:                open(STDERR, '>/dev/null'); # rlog may complain; ignore.
3.7       knu      1649:                exec('rlog', '-r', @files);
3.1       knu      1650:        }
                   1651:     }
                   1652:     $state = "start";
                   1653:     while (<$fh>) {
                   1654:        if ($state eq "start") {
                   1655:            #Next file. Initialize file variables
                   1656:            $rev = undef;
                   1657:            $revwanted = undef;
                   1658:            $branch = undef;
                   1659:            $branchpoint = undef;
                   1660:            $filename = undef;
                   1661:            $log = undef;
                   1662:            $revision = undef;
                   1663:            $branch = undef;
                   1664:            %symrev = ();
                   1665:            @filetags = ();
                   1666:            #jump to head state
                   1667:            $state = "head";
                   1668:        }
                   1669:        print "$state:$_" if ($verbose);
                   1670: again:
                   1671:        if ($state eq "head") {
                   1672:            #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   1673:            $filename = $1 if (/^Working file: (.+)$/);
                   1674:            $head = $1 if (/^head: (.+)$/);
                   1675:            $branch = $1 if (/^branch: (.+)$/);
                   1676:        }
                   1677:        if ($state eq "head" && /^symbolic names/) {
                   1678:            $state = "tags";
3.12      knu      1679:            ($branch = $head) =~ s/\.\d+$// if (!defined($branch));
3.1       knu      1680:            $branch =~ s/(\.?)(\d+)$/${1}0.$2/;
                   1681:            $symrev{MAIN} = $branch;
                   1682:            $symrev{HEAD} = $branch;
                   1683:            $alltags{MAIN} = 1;
                   1684:            $alltags{HEAD} = 1;
                   1685:            push (@filetags, "MAIN", "HEAD");
                   1686:            next;
                   1687:        }
                   1688:        if ($state eq "tags" &&
                   1689:                            /^\s+(.+):\s+([\d\.]+)\s+$/) {
                   1690:            push (@filetags, $1);
                   1691:            $symrev{$1} = $2;
                   1692:            $alltags{$1} = 1;
                   1693:            next;
                   1694:        }
                   1695:        if ($state eq "tags" && /^\S/) {
                   1696:            if (defined($tag) && (defined($symrev{$tag}) || $tag eq "HEAD")) {
                   1697:                $revwanted = $tag eq "HEAD" ? $symrev{"MAIN"} : $symrev{$tag};
                   1698:                ($branch = $revwanted) =~ s/\b0\.//;
                   1699:                ($branchpoint = $branch) =~ s/\.?\d+$//;
                   1700:                $revwanted = undef if ($revwanted ne $branch);
                   1701:            }
                   1702:            elsif (defined($tag) && $tag ne "HEAD") {
                   1703:                print "Tag not found, skip this file" if ($verbose);
                   1704:                $state = "skip";
                   1705:                next;
                   1706:            }
                   1707:            foreach my $tagfound (@filetags) {
                   1708:                $tags{$tagfound} = 1;
                   1709:            }
                   1710:            $state = "head";
                   1711:            goto again;
                   1712:        }
3.32      knu      1713:        if ($state eq "head" && /$LOG_REVSEPARATOR/o) {
3.1       knu      1714:            $state = "log";
                   1715:            $rev = undef;
                   1716:            $date = undef;
                   1717:            $log = "";
                   1718:            # Try to reconstruct the relative filename if RCS spits out a full path
                   1719:            $filename =~ s%^\Q$DirName\E/%%;
                   1720:            next;
                   1721:        }
                   1722:        if ($state eq "log") {
3.32      knu      1723:            if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
3.1       knu      1724:                # End of a log entry.
                   1725:                my $revbranch;
                   1726:                ($revbranch = $rev) =~ s/\.\d+$//;
                   1727:                print "$filename $rev Wanted: $revwanted "
                   1728:                    . "Revbranch: $revbranch Branch: $branch "
                   1729:                    . "Branchpoint: $branchpoint\n" if ($verbose);
                   1730:                if (!defined($revwanted) && defined($branch)
                   1731:                    && $branch eq $revbranch || !defined($tag)) {
                   1732:                    print "File revision $rev found for branch $branch\n"
                   1733:                        if ($verbose);
                   1734:                    $revwanted = $rev;
                   1735:                }
                   1736:                if (defined($revwanted) ? $rev eq $revwanted :
                   1737:                    defined($branchpoint) ? $rev eq $branchpoint :
                   1738:                    0 && ($rev eq $head)) { # Don't think head is needed here..
                   1739:                    print "File info $rev found for $filename\n" if ($verbose);
                   1740:                    my @finfo = ($rev,$date,$log,$author,$filename);
                   1741:                    my ($name);
                   1742:                    ($name = $filename) =~ s%/.*%%;
                   1743:                    $fileinfo{$name} = [ @finfo ];
                   1744:                    $state = "done" if ($rev eq $revwanted);
                   1745:                }
                   1746:                $rev = undef;
                   1747:                $date = undef;
                   1748:                $log = "";
                   1749:            }
                   1750:            elsif (!defined($date) && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|) {
                   1751:                my $yr = $1;
                   1752:                # damn 2-digit year routines :-)
                   1753:                if ($yr > 100) {
                   1754:                    $yr -= 1900;
                   1755:                }
                   1756:                $date = &Time::Local::timegm($6,$5,$4,$3,$2 - 1,$yr);
                   1757:                ($author) = /author: ([^;]+)/;
                   1758:                $state = "log";
                   1759:                $log = '';
                   1760:                next;
                   1761:            }
                   1762:            elsif (!defined($rev) && m/^revision (.*)$/) {
                   1763:                $rev = $1;
                   1764:                next;
                   1765:            }
                   1766:            else {
                   1767:                $log = $log . $_;
                   1768:            }
                   1769:        }
3.32      knu      1770:        if (/$LOG_FILESEPARATOR/o) {
3.1       knu      1771:            $state = "start";
                   1772:            next;
                   1773:        }
                   1774:     }
                   1775:     if ($. == 0) {
3.12      knu      1776:        fatal("500 Internal Error",
3.1       knu      1777:              "Failed to spawn GNU rlog on <em>'".join(", ", @files)."'</em><p>did you set the <b>\$ENV{PATH}</b> in your configuration file correctly ?");
                   1778:     }
                   1779:     close($fh);
                   1780: }
                   1781:
3.12      knu      1782: sub readLog($;$) {
3.1       knu      1783:        my($fullname,$revision) = @_;
                   1784:        my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   1785:        my $fh = do {local(*FH);};
                   1786:
                   1787:        if (defined($revision)) {
                   1788:            $revision = "-r$revision";
                   1789:        }
                   1790:        else {
                   1791:            $revision = "";
                   1792:        }
                   1793:
                   1794:        undef %symrev;
                   1795:        undef %revsym;
                   1796:        undef @allrevisions;
                   1797:        undef %date;
                   1798:        undef %author;
                   1799:        undef %state;
                   1800:        undef %difflines;
                   1801:        undef %log;
1.12      fenner   1802:
                   1803:        print("Going to rlog '$fullname'\n") if ($verbose);
3.1       knu      1804:        if (! open($fh, "-|")) { # child
                   1805:                if ($revision ne '') {
                   1806:                        exec("rlog",$revision,$fullname);
                   1807:                }
                   1808:                else {
                   1809:                        exec("rlog",$fullname);
                   1810:                }
1.44      knu      1811:        }
3.1       knu      1812:        while (<$fh>) {
1.1       jfieber  1813:            print if ($verbose);
                   1814:            if ($symnames) {
                   1815:                if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   1816:                    $symrev{$1} = $2;
3.1       knu      1817:                }
                   1818:                else {
1.1       jfieber  1819:                    $symnames = 0;
                   1820:                }
3.1       knu      1821:            }
                   1822:            elsif (/^head:\s+([\d\.]+)/) {
                   1823:                $head = $1;
                   1824:            }
                   1825:            elsif (/^branch:\s+([\d\.]+)/) {
                   1826:                $curbranch = $1;
                   1827:            }
                   1828:            elsif (/^symbolic names/) {
1.1       jfieber  1829:                $symnames = 1;
3.1       knu      1830:            }
                   1831:            elsif (/^-----/) {
1.1       jfieber  1832:                last;
                   1833:            }
                   1834:        }
3.1       knu      1835:        ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
1.7       fenner   1836:
1.1       jfieber  1837: # each log entry is of the form:
                   1838: # ----------------------------
                   1839: # revision 3.7.1.1
                   1840: # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   1841: # log info
                   1842: # ----------------------------
                   1843:        logentry:
3.32      knu      1844:        while (!/$LOG_FILESEPARATOR/o) {
3.1       knu      1845:            $_ = <$fh>;
1.12      fenner   1846:            last logentry if (!defined($_));    # EOF
1.1       jfieber  1847:            print "R:", $_ if ($verbose);
                   1848:            if (/^revision ([\d\.]+)/) {
                   1849:                $rev = $1;
3.1       knu      1850:                unshift(@allrevisions,$rev);
                   1851:            }
3.32      knu      1852:            elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
1.1       jfieber  1853:                next logentry;
3.1       knu      1854:            }
                   1855:            else {
1.12      fenner   1856:                # The rlog output is syntactically ambiguous.  We must
                   1857:                # have guessed wrong about where the end of the last log
                   1858:                # message was.
                   1859:                # Since this is likely to happen when people put rlog output
                   1860:                # in their commit messages, don't even bother keeping
                   1861:                # these lines since we don't know what revision they go with
                   1862:                # any more.
                   1863:                next logentry;
                   1864: #              &fatal("500 Internal Error","Error parsing RCS output: $_");
1.1       jfieber  1865:            }
3.1       knu      1866:            $_ = <$fh>;
1.1       jfieber  1867:            print "D:", $_ if ($verbose);
3.1       knu      1868:            if (m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|) {
                   1869:                my $yr = $1;
                   1870:                 # damn 2-digit year routines :-)
                   1871:                 if ($yr > 100) {
                   1872:                     $yr -= 1900;
                   1873:                 }
                   1874:                $date{$rev} = &Time::Local::timegm($6,$5,$4,$3,$2 - 1,$yr);
1.1       jfieber  1875:                $author{$rev} = $7;
1.9       fenner   1876:                $state{$rev} = $8;
3.1       knu      1877:                $difflines{$rev} = $10;
                   1878:            }
                   1879:            else {
1.1       jfieber  1880:                &fatal("500 Internal Error", "Error parsing RCS output: $_");
                   1881:            }
                   1882:            line:
3.1       knu      1883:            while (<$fh>) {
1.1       jfieber  1884:                print "L:", $_ if ($verbose);
                   1885:                next line if (/^branches:\s/);
3.32      knu      1886:                last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
1.1       jfieber  1887:                $log{$rev} .= $_;
                   1888:            }
                   1889:            print "E:", $_ if ($verbose);
                   1890:        }
3.1       knu      1891:        close($fh);
1.1       jfieber  1892:        print "Done reading RCS file\n" if ($verbose);
3.1       knu      1893:
                   1894:        @revorder = reverse sort {revcmp($a,$b)} @allrevisions;
                   1895:        print "Done sorting revisions",join(" ",@revorder),"\n" if ($verbose);
                   1896:
1.1       jfieber  1897: #
                   1898: # HEAD is an artificial tag which is simply the highest tag number on the main
1.8       fenner   1899: # branch, unless there is a branch tag in the RCS file in which case it's the
                   1900: # highest revision on that branch.  Find it by looking through @revorder; it
                   1901: # is the first commit listed on the appropriate branch.
3.1       knu      1902: # This is not neccesary the same revision as marked as head in the RCS file.
                   1903:        my $headrev = $curbranch || "1";
                   1904:        ($symrev{"MAIN"} = $headrev) =~ s/(\.?)(\d+)$/${1}0.$2/;
1.1       jfieber  1905:        revision:
3.1       knu      1906:        foreach $rev (@revorder) {
                   1907:            if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   1908:                $symrev{"HEAD"} = $rev;
1.1       jfieber  1909:                last revision;
                   1910:            }
                   1911:        }
3.1       knu      1912:        ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   1913:             if (!defined($symrev{"HEAD"}));
1.1       jfieber  1914:        print "Done finding HEAD\n" if ($verbose);
                   1915: #
                   1916: # Now that we know all of the revision numbers, we can associate
                   1917: # absolute revision numbers with all of the symbolic names, and
                   1918: # pass them to the form so that the same association doesn't have
                   1919: # to be built then.
                   1920: #
3.1       knu      1921:        undef @branchnames;
                   1922:        undef %branchpoint;
                   1923:        undef $sel;
                   1924:
                   1925:        foreach (reverse sort keys %symrev) {
1.1       jfieber  1926:            $rev = $symrev{$_};
3.1       knu      1927:            if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
1.7       fenner   1928:                push(@branchnames, $_);
1.1       jfieber  1929:                #
                   1930:                # A revision number of A.B.0.D really translates into
                   1931:                # "the highest current revision on branch A.B.D".
                   1932:                #
                   1933:                # If there is no branch A.B.D, then it translates into
                   1934:                # the head A.B .
                   1935:                #
3.1       knu      1936:                # This reasoning also applies to the main branch A.B,
                   1937:                # with the branch number 0.A, with the exception that
                   1938:                # it has no head to translate to if there is nothing on
                   1939:                # the branch, but I guess this can never happen?
                   1940:                # (the code below gracefully forgets about the branch
                   1941:                # if it should happen)
                   1942:                #
                   1943:                $head = defined($2) ? $2 : "";
1.1       jfieber  1944:                $branch = $3;
3.1       knu      1945:                $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   1946:                my $regex;
                   1947:                ($regex = $branchrev) =~ s/\./\\./g;
1.1       jfieber  1948:                $rev = $head;
                   1949:
                   1950:                revision:
3.1       knu      1951:                foreach my $r (@revorder) {
                   1952:                    if ($r =~ /^${regex}\b/) {
                   1953:                        $rev = $branchrev;
1.1       jfieber  1954:                        last revision;
                   1955:                    }
                   1956:                }
3.1       knu      1957:                next if ($rev eq "");
                   1958:                if ($rev ne $head && $head ne "") {
1.8       fenner   1959:                    $branchpoint{$head} .= ", " if ($branchpoint{$head});
                   1960:                    $branchpoint{$head} .= $_;
                   1961:                }
1.1       jfieber  1962:            }
3.1       knu      1963:            $revsym{$rev} .= ", " if ($revsym{$rev});
                   1964:            $revsym{$rev} .= $_;
1.1       jfieber  1965:            $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
                   1966:        }
                   1967:        print "Done associating revisions with branches\n" if ($verbose);
3.1       knu      1968:
                   1969:        my ($onlyonbranch, $onlybranchpoint);
                   1970:        if ($onlyonbranch = $input{'only_with_tag'}) {
                   1971:            $onlyonbranch = $symrev{$onlyonbranch};
                   1972:            if ($onlyonbranch =~ s/\b0\.//) {
                   1973:                ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   1974:            }
                   1975:             else {
                   1976:                $onlybranchpoint = $onlyonbranch;
                   1977:            }
                   1978:            if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   1979:                fatal("404 Tag not found","Tag $input{'only_with_tag'} not defined");
                   1980:            }
1.8       fenner   1981:        }
1.1       jfieber  1982:
3.1       knu      1983:        undef @revisions;
                   1984:
                   1985:        foreach (@allrevisions) {
1.7       fenner   1986:            ($br = $_) =~ s/\.\d+$//;
3.1       knu      1987:            ($brp = $br) =~ s/\.\d+$//;
1.7       fenner   1988:            next if ($onlyonbranch && $br ne $onlyonbranch &&
3.1       knu      1989:                                        $_ ne $onlybranchpoint);
                   1990:            unshift(@revisions,$_);
                   1991:        }
                   1992:
                   1993:        if ($logsort eq "date") {
                   1994:            # Sort the revisions in commit order an secondary sort on revision
                   1995:            # (secondary sort needed for imported sources, or the first main
                   1996:            # revision gets before the same revision on the 1.1.1 branch)
                   1997:            @revdisplayorder = sort {$date{$b} <=> $date{$a} || -revcmp($a, $b)} @revisions;
                   1998:        }
                   1999:         elsif ($logsort eq "rev") {
                   2000:            # Sort the revisions in revision order, highest first
                   2001:            @revdisplayorder = reverse sort {revcmp($a,$b)} @revisions;
                   2002:        }
                   2003:         else {
                   2004:            # No sorting. Present in the same order as rlog / cvs log
                   2005:            @revdisplayorder = @revisions;
                   2006:        }
                   2007:
                   2008: }
                   2009:
                   2010: sub printLog($;$) {
                   2011:        my ($link, $br, $brp);
                   2012:        ($_,$link) = @_;
                   2013:        ($br = $_) =~ s/\.\d+$//;
                   2014:        ($brp = $br) =~ s/\.?\d+$//;
                   2015:        my ($isDead, $prev);
                   2016:
                   2017:        $link = 1 if (!defined($link));
                   2018:        $isDead = ($state{$_} eq "dead");
                   2019:
                   2020:        if ($link && !$isDead) {
                   2021:            my ($filename);
                   2022:            ($filename = $where) =~ s/^.*\///;
                   2023:            my ($fileurl) = urlencode($filename);
1.4       fenner   2024:            print "<a NAME=\"rev$_\"></a>";
3.1       knu      2025:            if (defined($revsym{$_})) {
                   2026:                foreach my $sym (split(", ", $revsym{$_})) {
                   2027:                    print "<a NAME=\"$sym\"></a>";
                   2028:                }
1.4       fenner   2029:            }
3.1       knu      2030:            if (defined($revsym{$br}) && $revsym{$br} && !defined($nameprinted{$br})) {
                   2031:                foreach my $sym (split(", ", $revsym{$br})) {
1.4       fenner   2032:                    print "<a NAME=\"$sym\"></a>";
                   2033:                }
3.1       knu      2034:                $nameprinted{$br} = 1;
1.4       fenner   2035:            }
3.1       knu      2036:            print "\n Revision ";
                   2037:            &download_link($fileurl, $_, $_,
3.35    ! knu      2038:                           $defaultViewable ? "text/x-cvsweb-markup" : undef);
3.1       knu      2039:            if ($defaultViewable) {
3.35    ! knu      2040:                print " / (";
        !          2041:                &download_link($fileurl, $_, "download", $mimetype);
        !          2042:                print ")";
3.1       knu      2043:            }
                   2044:            if (not $defaultTextPlain) {
3.35    ! knu      2045:                print " / (";
        !          2046:                &download_link($fileurl, $_, "as text", "text/plain");
        !          2047:                print ")";
3.1       knu      2048:            }
                   2049:            if (!$defaultViewable) {
3.35    ! knu      2050:                print " / (";
        !          2051:                &download_link($fileurl, $_, "view", "text/x-cvsweb-markup");
        !          2052:                print ")";
3.1       knu      2053:            }
                   2054:            if ($allow_annotate) {
3.35    ! knu      2055:                print " - ";
        !          2056:                print &link('annotate',
        !          2057:                            sprintf('%s/%s?annotate=%s%s',
        !          2058:                                    $scriptname,
        !          2059:                                    urlencode($where),
        !          2060:                                    $_,
        !          2061:                                    $barequery));
3.1       knu      2062:            }
                   2063:            # Plus a select link if enabled, and this version isn't selected
                   2064:            if ($allow_version_select) {
                   2065:                if ((!defined($input{"r1"}) || $input{"r1"} ne $_)) {
3.35    ! knu      2066:                    print " - ";
        !          2067:                    print &link('[select for diffs]',
        !          2068:                                sprintf('%s?r1=%s%s',
        !          2069:                                        $scriptwhere,
        !          2070:                                        $_,
        !          2071:                                        $barequery));
3.1       knu      2072:                }
                   2073:                else {
                   2074:                    print " - <b>[selected]</b>";
                   2075:                }
                   2076:            }
                   2077:        }
                   2078:        else {
                   2079:            print "Revision <B>$_</B>";
                   2080:        }
                   2081:        if (/^1\.1\.1\.\d+$/) {
                   2082:            print " <i>(vendor branch)</i>";
                   2083:        }
                   2084:        if (defined @mytz) {
                   2085:            my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2086:            print ", <i>" . scalar localtime($date{$_}) . " $est</i> (";
                   2087:        } else {
                   2088:            print ", <i>" . scalar gmtime($date{$_}) . " UTC</i> (";
                   2089:        }
                   2090:        print readableTime(time() - $date{$_},1) . " ago)";
                   2091:        print " by ";
                   2092:        print "<i>" . $author{$_} . "</i>\n";
                   2093:        print "<BR>Branch: <b>",$link?link_tags($revsym{$br}):$revsym{$br},"</b>\n"
                   2094:            if ($revsym{$br});
                   2095:        print "<BR>CVS Tags: <b>",$link?link_tags($revsym{$_}):$revsym{$_},"</b>"
                   2096:            if ($revsym{$_});
                   2097:        print "<BR>Branch point for: <b>",$link?link_tags($branchpoint{$_}):$branchpoint{$_},"</b>\n"
                   2098:            if ($branchpoint{$_});
                   2099:        # Find the previous revision
                   2100:        my @prevrev = split(/\./, $_);
                   2101:        do {
                   2102:            if (--$prevrev[$#prevrev] <= 0) {
1.1       jfieber  2103:                # If it was X.Y.Z.1, just make it X.Y
3.1       knu      2104:                pop(@prevrev);
                   2105:                pop(@prevrev);
                   2106:            }
                   2107:            $prev = join(".", @prevrev);
                   2108:        } until (defined($date{$prev}) || $prev eq "");
                   2109:        if ($prev ne "") {
                   2110:            if ($difflines{$_}) {
                   2111:                print "<BR>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2112:            }
                   2113:        }
                   2114:        if ($isDead) {
                   2115:            print "<BR><B><I>FILE REMOVED</I></B>\n";
                   2116:        }
                   2117:        elsif ($link) {
                   2118:            my %diffrev = ();
                   2119:            $diffrev{$_} = 1;
                   2120:            $diffrev{""} = 1;
                   2121:            print "<BR>Diff";
                   2122:            #
                   2123:            # Offer diff to previous revision
                   2124:            if ($prev) {
                   2125:                $diffrev{$prev} = 1;
3.35    ! knu      2126:
        !          2127:                my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
        !          2128:                                  $scriptwhere,
        !          2129:                                  $prev,
        !          2130:                                  $_,
        !          2131:                                  $barequery);
        !          2132:
        !          2133:                print " to previous ";
        !          2134:                print &link($prev, $url);
3.1       knu      2135:                if (!$hr_default) { # offer a human readable version if not default
3.35    ! knu      2136:                    print &link('colored', "$url&f=h");
3.1       knu      2137:                }
                   2138:            }
                   2139:            #
                   2140:            # Plus, if it's on a branch, and it's not a vendor branch,
                   2141:            # offer a diff with the branch point.
                   2142:            if ($revsym{$brp} && !/^1\.1\.1\.\d+$/ && !defined($diffrev{$brp})) {
3.35    ! knu      2143:                my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
        !          2144:                                  $scriptwhere,
        !          2145:                                  $brp,
        !          2146:                                  $_,
        !          2147:                                  $barequery);
        !          2148:
        !          2149:                print " to branchpoint ";
        !          2150:                print &link($brp, $url);
3.1       knu      2151:                if (!$hr_default) { # offer a human readable version if not default
3.35    ! knu      2152:                    print &link('colored', "$url&f=h");
1.1       jfieber  2153:                }
                   2154:            }
3.1       knu      2155:            #
                   2156:            # Plus, if it's on a branch, and it's not a vendor branch,
                   2157:            # offer to diff with the next revision of the higher branch.
                   2158:            # (e.g. change gets committed and then brought
                   2159:            # over to -stable)
                   2160:            if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2161:                my ($i,$nextmain);
                   2162:                for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++){}
                   2163:                my (@tmp2) = split(/\./, $_);
                   2164:                for ($nextmain = ""; $i > 0; $i--) {
                   2165:                    my ($next) = $revorder[$i-1];
                   2166:                    my (@tmp1) = split(/\./, $next);
1.1       jfieber  2167:                    if ($#tmp1 < $#tmp2) {
3.1       knu      2168:                        $nextmain = $next;
                   2169:                        last;
                   2170:                    }
                   2171:                    # Only the highest version on a branch should have
                   2172:                    # a diff for the "next main".
                   2173:                    last if (join(".",@tmp1[0..$#tmp1-1])
                   2174:                             eq join(".",@tmp2[0..$#tmp1-1]));
                   2175:                }
                   2176:                if (!defined($diffrev{$nextmain})) {
                   2177:                    $diffrev{$nextmain} = 1;
3.35    ! knu      2178:
        !          2179:                    my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
        !          2180:                                      $scriptwhere,
        !          2181:                                      $nextmain,
        !          2182:                                      $_,
        !          2183:                                      $barequery);
        !          2184:
        !          2185:                    print " next main ";
        !          2186:                    print &link($nextmain, $url);
3.1       knu      2187:                    if (!$hr_default) { # offer a human readable version if not default
3.35    ! knu      2188:                        print &link('colored', "$url&f=h");
1.1       jfieber  2189:                    }
                   2190:                }
                   2191:            }
3.1       knu      2192:            # Plus if user has selected only r1, then present a link
                   2193:            # to make a diff to that revision
                   2194:            if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2195:                $diffrev{$input{"r1"}} = 1;
3.35    ! knu      2196:
        !          2197:                my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
        !          2198:                                  $scriptwhere,
        !          2199:                                  $input{'r1'},
        !          2200:                                  $_,
        !          2201:                                  $barequery);
        !          2202:
        !          2203:                print " to selected ";
        !          2204:                print &link($input{'r1'}, $url);
3.1       knu      2205:                if (!$hr_default) { # offer a human readable version if not default
3.35    ! knu      2206:                    print &link('colored', "$url&f=h");
3.1       knu      2207:                }
1.9       fenner   2208:            }
1.1       jfieber  2209:        }
3.1       knu      2210:        print "<PRE>\n";
                   2211:        print &htmlify($log{$_}, 1);
                   2212:        print "</PRE>\n";
                   2213: }
                   2214:
3.12      knu      2215: sub doLog($) {
3.1       knu      2216:        my($fullname) = @_;
                   2217:        my ($diffrev, $upwhere, $filename, $backurl);
3.12      knu      2218:
3.1       knu      2219:        readLog($fullname);
                   2220:
                   2221:         html_header("CVS log for $where");
                   2222:        ($upwhere = $where) =~ s|(Attic/)?[^/]+$||;
                   2223:         ($filename = $where) =~ s|^.*/||;
                   2224:         $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2225:        print &link($backicon, "$backurl#$filename"),
3.35    ! knu      2226:          " <b>Up to ", &clickablePath($upwhere, 1), "</b><p>\n";
        !          2227:        print &link('Request diff between arbitrary revisions', '#diff');
        !          2228:         print '<HR NOSHADE>';
        !          2229:
3.1       knu      2230:        if ($curbranch) {
3.3       knu      2231:            print "Default branch: ", ($revsym{$curbranch} || $curbranch);
3.1       knu      2232:        }
                   2233:        else {
                   2234:            print "No default branch";
                   2235:        }
                   2236:        print "<BR>\n";
                   2237:        if ($input{only_with_tag}) {
                   2238:            print "Current tag: $input{only_with_tag}<BR>\n";
                   2239:        }
                   2240:
                   2241:        undef %nameprinted;
                   2242:
                   2243:        for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2244:            print "<HR size=1 NOSHADE>";
                   2245:            printLog($revdisplayorder[$i]);
                   2246:        }
                   2247:
                   2248:         print "<HR NOSHADE>";
1.1       jfieber  2249:        print "<A NAME=diff>\n";
                   2250:        print "This form allows you to request diff's between any two\n";
                   2251:        print "revisions of a file.  You may select a symbolic revision\n";
                   2252:        print "name using the selection box or you may type in a numeric\n";
                   2253:        print "name using the type-in text box.\n";
                   2254:        print "</A><P>\n";
3.1       knu      2255:        print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}.diff\" NAME=\"diff_select\">\n";
                   2256:         foreach (@stickyvars) {
3.35    ! knu      2257:            printf('<INPUT TYPE=HIDDEN NAME="%s" VALUE="%s">',  $_, $input{$_})
3.1       knu      2258:                if (defined($input{$_})
3.23      knu      2259:                    && ((!defined($DEFAULTVALUE{$_})
                   2260:                         || $input{$_} ne $DEFAULTVALUE{$_})
                   2261:                        && $input{$_} ne ""));
3.1       knu      2262:        }
3.21      knu      2263:        print "<TABLE><TR>\n";
                   2264:        print "<TD align=right>Diffs between \n";
1.1       jfieber  2265:        print "<SELECT NAME=\"r1\">\n";
                   2266:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                   2267:        print $sel;
                   2268:        print "</SELECT>\n";
3.1       knu      2269:        $diffrev = $revdisplayorder[$#revdisplayorder];
                   2270:        $diffrev = $input{"r1"} if (defined($input{"r1"}));
3.21      knu      2271:        print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr1\" VALUE=\"$diffrev\" onChange='document.diff_select.r1.selectedIndex=0'></TD>";
                   2272:        print "<TD><BR></TD></TR>\n";
                   2273:        print "<TR><TD align=right>and \n";
1.1       jfieber  2274:        print "<SELECT NAME=\"r2\">\n";
                   2275:        print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
                   2276:        print $sel;
                   2277:        print "</SELECT>\n";
3.1       knu      2278:        $diffrev = $revdisplayorder[0];
                   2279:        $diffrev = $input{"r2"} if (defined($input{"r2"}));
3.21      knu      2280:        print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr2\" VALUE=\"$diffrev\" onChange='document.diff_select.r2.selectedIndex=0'></TD>";
                   2281:        print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Get Diffs  \"></TD>\n";
1.1       jfieber  2282:        print "</FORM>\n";
3.21      knu      2283:        print "</TR></TABLE>\n";
1.7       fenner   2284:        print "<HR noshade>\n";
3.21      knu      2285:        print "<TABLE>";
                   2286:        print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
                   2287:         print "<TR><TD align=right>Preferred Diff type:</TD>";
                   2288:         print "<TD>";
                   2289:        printDiffSelect($use_java_script);
                   2290:        print "</TD><TD></TD></TR>\n";
3.1       knu      2291:         if (@branchnames) {
3.21      knu      2292:            print "<TR><TD align=right>View only Branch:</TD>";
                   2293:            print "<TD>";
3.1       knu      2294:            print "<A name=branch></A>\n";
                   2295:            print "<SELECT NAME=\"only_with_tag\"";
                   2296:            print " onchange=\"submit()\"" if ($use_java_script);
                   2297:            print ">\n";
                   2298:            print "<OPTION VALUE=\"\"";
                   2299:            print " SELECTED" if (defined($input{"only_with_tag"}) &&
                   2300:                $input{"only_with_tag"} eq "");
                   2301:            print ">Show all branches\n";
                   2302:            foreach (reverse sort @branchnames) {
1.9       fenner   2303:                print "<OPTION";
3.1       knu      2304:                print " SELECTED" if (defined($input{"only_with_tag"})
                   2305:                        && $input{"only_with_tag"} eq $_);
1.9       fenner   2306:                print ">${_}\n";
3.1       knu      2307:            }
3.21      knu      2308:            print "</SELECT></TD><TD></TD></TR>\n";
1.7       fenner   2309:        }
3.1       knu      2310:        foreach (@stickyvars) {
3.21      knu      2311:            next if ($_ eq "f");
3.1       knu      2312:            next if ($_ eq "only_with_tag");
                   2313:            next if ($_ eq "logsort");
                   2314:            print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
3.23      knu      2315:                if (defined($input{$_})
                   2316:                    && (!defined($DEFAULTVALUE{$_})
                   2317:                        || $input{$_} ne $DEFAULTVALUE{$_})
3.1       knu      2318:                    && $input{$_} ne "");
                   2319:        }
3.21      knu      2320:        print "<TR><TD align=right>";
                   2321:        print "<A name=logsort></A>\n";
                   2322:        print "Sort log by:</TD>";
                   2323:        print "<TD><SELECT NAME=\"logsort\"";
3.1       knu      2324:        print " onchange=\"submit()\"" if ($use_java_script);
                   2325:        print ">\n";
                   2326:        print "<OPTION VALUE=cvs",$logsort eq "cvs" ? " SELECTED" : "", ">Not sorted";
                   2327:        print "<OPTION VALUE=date",$logsort eq "date" ? " SELECTED" : "", ">Commit date";
                   2328:        print "<OPTION VALUE=rev",$logsort eq "rev" ? " SELECTED" : "", ">Revision";
3.21      knu      2329:        print "</SELECT></TD>";
                   2330:        print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Set  \"></TD>";
1.7       fenner   2331:        print "</FORM>\n";
3.21      knu      2332:        print "</TR></TABLE>";
1.2       jfieber  2333:         print &html_footer;
1.1       jfieber  2334:        print "</BODY></HTML>\n";
1.10      wosch    2335: }
                   2336:
3.12      knu      2337: sub flush_diff_rows($$$$) {
3.1       knu      2338:     my $j;
                   2339:     my ($leftColRef,$rightColRef,$leftRow,$rightRow) = @_;
                   2340:     if ($state eq "PreChangeRemove") {          # we just got remove-lines before
                   2341:       for ($j = 0 ; $j < $leftRow; $j++) {
                   2342:           print  "<tr><td bgcolor=\"$diffcolorRemove\">@$leftColRef[$j]</td>";
                   2343:           print  "<td bgcolor=\"$diffcolorEmpty\">&nbsp;</td></tr>\n";
                   2344:       }
                   2345:     }
                   2346:     elsif ($state eq "PreChange") {             # state eq "PreChange"
                   2347:       # we got removes with subsequent adds
                   2348:       for ($j = 0; $j < $leftRow || $j < $rightRow ; $j++) {  # dump out both cols
                   2349:           print  "<tr>";
                   2350:           if ($j < $leftRow) {
                   2351:              print  "<td bgcolor=\"$diffcolorChange\">@$leftColRef[$j]</td>";
                   2352:          }
                   2353:           else {
                   2354:              print  "<td bgcolor=\"$diffcolorDarkChange\">&nbsp;</td>";
                   2355:          }
                   2356:           if ($j < $rightRow) {
                   2357:              print  "<td bgcolor=\"$diffcolorChange\">@$rightColRef[$j]</td>";
                   2358:          }
                   2359:           else {
                   2360:              print  "<td bgcolor=\"$diffcolorDarkChange\">&nbsp;</td>";
                   2361:          }
                   2362:           print  "</tr>\n";
                   2363:       }
                   2364:     }
                   2365: }
                   2366:
                   2367: ##
                   2368: # Function to generate Human readable diff-files
                   2369: # human_readable_diff(String revision_to_return_to);
                   2370: ##
                   2371: sub human_readable_diff($){
3.24      knu      2372:   my ($difftxt, $where_nd, $filename, $pathname, $scriptwhere_nd);
3.1       knu      2373:   my ($fh, $rev) = @_;
                   2374:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   2375:   my (@rightCol, @leftCol);
                   2376:
                   2377:   ($where_nd = $where) =~ s/.diff$//;
                   2378:   ($filename = $where_nd) =~ s/^.*\///;
                   2379:   ($pathname = $where_nd) =~ s/(Attic\/)?[^\/]*$//;
                   2380:   ($scriptwhere_nd = $scriptwhere) =~ s/.diff$//;
                   2381:
3.12      knu      2382:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, "diff");
3.1       knu      2383:
                   2384:   # Read header to pick up read revision and date, if possible
                   2385:   while (<$fh>) {
                   2386:       ($r1d,$r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   2387:       ($r2d,$r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   2388:       last if (/^\+\+\+ /);
                   2389:   }
                   2390:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   2391:     $rev1 = $r1r;
                   2392:     $date1 = $r1d;
                   2393:   }
                   2394:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   2395:     $rev2 = $r2r;
                   2396:     $date2 = $r2d;
                   2397:   }
3.12      knu      2398:
3.1       knu      2399:   print "<h3 align=center>Diff for /$where_nd between version $rev1 and $rev2</h3>\n";
                   2400:
                   2401:   print "<table border=0 cellspacing=0 cellpadding=0 width=\"100%\">\n";
                   2402:   print "<tr bgcolor=\"#ffffff\">\n";
                   2403:   print "<th width=\"50%\" valign=TOP>";
                   2404:   print "version $rev1";
                   2405:   print ", $date1" if (defined($date1));
                   2406:   print "<br>Tag: $sym1\n" if ($sym1);
                   2407:   print "</th>\n";
                   2408:   print "<th width=\"50%\" valign=TOP>";
                   2409:   print "version $rev2";
                   2410:   print ", $date2" if (defined($date2));
                   2411:   print "<br>Tag: $sym2\n" if ($sym1);
                   2412:   print "</th>\n";
                   2413:
                   2414:   my $fs = "<font face=\"$difffontface\" size=\"$difffontsize\">";
                   2415:   my $fe = "</font>";
                   2416:
                   2417:   my $leftRow = 0;
                   2418:   my $rightRow = 0;
                   2419:   my ($oldline, $newline, $funname, $diffcode, $rest);
                   2420:
                   2421:   # Process diff text
                   2422:   # The diffrows are could make excellent use of
                   2423:   # cascading style sheets because we've to set the
                   2424:   # font and color for each row. anyone ...?
                   2425:   ####
3.24      knu      2426:
                   2427:   # prefetch several lines
                   2428:   my @buf = head($fh);
                   2429:
                   2430:   my %d = scan_directives(@buf);
                   2431:
                   2432:   while (@buf || !eof($fh)) {
                   2433:       $difftxt = @buf ? shift @buf : <$fh>;
3.12      knu      2434:
3.1       knu      2435:       if ($difftxt =~ /^@@/) {
                   2436:          ($oldline,$newline,$funname) = $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   2437:           print  "<tr bgcolor=\"$diffcolorHeading\"><td width=\"50%\">";
                   2438:          print  "<table width=\"100%\" border=1 cellpadding=5><tr><td><b>Line $oldline</b>";
                   2439:          print  "&nbsp;<font size=-1>$funname</font></td></tr></table>";
                   2440:           print  "</td><td width=\"50%\">";
                   2441:          print  "<table width=\"100%\" border=1 cellpadding=5><tr><td><b>Line $newline</b>";
                   2442:          print  "&nbsp;<font size=-1>$funname</font></td></tr></table>";
                   2443:          print  "</td>\n";
                   2444:          $state = "dump";
                   2445:          $leftRow = 0;
                   2446:          $rightRow = 0;
                   2447:       }
                   2448:       else {
                   2449:          ($diffcode,$rest) = $difftxt =~ /^([-+ ])(.*)/;
3.24      knu      2450:          $_ = spacedHtmlText($rest, $d{'tabstop'});
3.1       knu      2451:
                   2452:          # Add fontface, size
                   2453:          $_ = "$fs&nbsp;$_$fe";
3.12      knu      2454:
3.1       knu      2455:          #########
                   2456:          # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   2457:          # in order to get some nice 'ediff'-mode output
                   2458:          # states:
                   2459:          #  "dump"             - just dump the value
                   2460:          #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   2461:          #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   2462:          ##########
                   2463:
                   2464:          if ($diffcode eq '+') {
                   2465:              if ($state eq "dump") {  # 'change' never begins with '+': just dump out value
                   2466:                  print  "<tr><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td><td bgcolor=\"$diffcolorAdd\">$_</td></tr>\n";
                   2467:              }
                   2468:              else {                   # we got minus before
                   2469:                  $state = "PreChange";
                   2470:                  $rightCol[$rightRow++] = $_;
                   2471:              }
3.12      knu      2472:          }
3.1       knu      2473:          elsif ($diffcode eq '-') {
                   2474:              $state = "PreChangeRemove";
                   2475:              $leftCol[$leftRow++] = $_;
                   2476:         }
                   2477:         else {  # empty diffcode
                   2478:             flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   2479:              print  "<tr><td>$_</td><td>$_</td></tr>\n";
                   2480:              $state = "dump";
                   2481:              $leftRow = 0;
                   2482:              $rightRow = 0;
                   2483:          }
                   2484:       }
                   2485:   }
                   2486:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   2487:
                   2488:   # state is empty if we didn't have any change
                   2489:   if (!$state) {
                   2490:       print "<tr><td colspan=2>&nbsp;</td></tr>";
                   2491:       print "<tr bgcolor=\"$diffcolorEmpty\" >";
                   2492:       print "<td colspan=2 align=center><b>- No viewable Change -</b></td></tr>";
                   2493:   }
                   2494:   print  "</table>";
                   2495:   close($fh);
                   2496:
                   2497:   print "<br><hr noshade width=\"100%\">\n";
                   2498:
                   2499:   print "<table border=0>";
                   2500:
                   2501:   print "<tr><td>";
                   2502:   # print legend
                   2503:   print "<table border=1><tr><td>";
                   2504:   print  "Legend:<br><table border=0 cellspacing=0 cellpadding=1>\n";
                   2505:   print  "<tr><td align=center bgcolor=\"$diffcolorRemove\">Removed from v.$rev1</td><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td></tr>";
                   2506:   print  "<tr bgcolor=\"$diffcolorChange\"><td align=center colspan=2>changed lines</td></tr>";
                   2507:   print  "<tr><td bgcolor=\"$diffcolorEmpty\">&nbsp;</td><td align=center bgcolor=\"$diffcolorAdd\">Added in v.$rev2</td></tr>";
                   2508:   print  "</table></td></tr></table>\n";
                   2509:
                   2510:   print "<td>";
                   2511:   # Print format selector
                   2512:   print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}\">\n";
                   2513:   foreach my $var (keys %input) {
                   2514:     next if ($var eq "f");
                   2515:     next if (defined($DEFAULTVALUE{$var})
                   2516:             && $DEFAULTVALUE{$var} eq $input{$var});
                   2517:     print "<INPUT TYPE=HIDDEN NAME=\"",urlencode($var),"\" VALUE=\"",
                   2518:            urlencode($input{$var}),"\">\n";
                   2519:   }
                   2520:   printDiffSelect($use_java_script);
                   2521:   print "<INPUT TYPE=SUBMIT VALUE=\"Show\">\n";
                   2522:   print "</FORM>\n";
                   2523:   print "</td>";
                   2524:
                   2525:   print "</tr></table>";
                   2526: }
                   2527:
3.12      knu      2528: sub navigateHeader($$$$$) {
3.1       knu      2529:     my ($swhere,$path,$filename,$rev,$title) = @_;
                   2530:     $swhere = "" if ($swhere eq $scriptwhere);
                   2531:     $swhere = urlencode($filename) if ($swhere eq "");
                   2532:     print "<\!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">";
                   2533:     print "<HTML>\n<HEAD>\n";
3.35    ! knu      2534:     print '<!-- CVSweb $zRevision: 1.103 $  $Revision: 3.34 $ -->';
3.1       knu      2535:     print "\n<TITLE>$path$filename - $title - $rev</TITLE></HEAD>\n";
3.26      knu      2536:     print  "$body_tag_for_src\n";
3.1       knu      2537:     print "<table width=\"100%\" border=0 cellspacing=0 cellpadding=1 bgcolor=\"$navigationHeaderColor\">";
                   2538:     print "<tr valign=bottom><td>";
3.35    ! knu      2539:     print &link($backicon, "$swhere$query#rev$rev");
3.1       knu      2540:     print "</a> <b>Return to ", &link("$filename","$swhere$query#rev$rev")," CVS log";
                   2541:     print "</b> $fileicon</td>";
3.12      knu      2542:
3.1       knu      2543:     print "<td align=right>$diricon <b>Up to ", &clickablePath($path, 1), "</b></td>";
                   2544:     print "</tr></table>";
                   2545: }
                   2546:
3.12      knu      2547: sub plural_write($$) {
3.1       knu      2548:     my ($num,$text) = @_;
                   2549:     if ($num != 1) {
                   2550:        $text = $text . "s";
                   2551:     }
                   2552:     if ($num > 0) {
                   2553:        return $num . " " . $text;
                   2554:     }
                   2555:     else {
                   2556:        return "";
                   2557:     }
                   2558: }
                   2559:
                   2560: ##
                   2561: # print readable timestamp in terms of
                   2562: # '..time ago'
                   2563: # H. Zeller <zeller@think.de>
                   2564: ##
3.12      knu      2565: sub readableTime($$) {
3.1       knu      2566:     my ($i, $break, $retval);
                   2567:     my ($secs,$long) = @_;
                   2568:
                   2569:     # this function works correct for time >= 2 seconds
                   2570:     if ($secs < 2) {
                   2571:        return "very little time";
                   2572:     }
                   2573:
                   2574:     my %desc = (1 , 'second',
                   2575:                   60, 'minute',
                   2576:                   3600, 'hour',
                   2577:                   86400, 'day',
                   2578:                   604800, 'week',
                   2579:                   2628000, 'month',
                   2580:                   31536000, 'year');
                   2581:     my @breaks = sort {$a <=> $b} keys %desc;
                   2582:     $i = 0;
3.12      knu      2583:     while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
3.1       knu      2584:        $i++;
                   2585:     }
                   2586:     $i--;
                   2587:     $break = $breaks[$i];
3.3       knu      2588:     $retval = plural_write(int ($secs / $break), $desc{$break});
3.1       knu      2589:
                   2590:     if ($long == 1 && $i > 0) {
                   2591:        my $rest = $secs % $break;
                   2592:        $i--;
                   2593:        $break = $breaks[$i];
3.12      knu      2594:        my $resttime = plural_write(int ($rest / $break),
3.3       knu      2595:                                $desc{$break});
3.1       knu      2596:        if ($resttime) {
                   2597:            $retval = $retval . ", " . $resttime;
                   2598:        }
                   2599:     }
                   2600:
                   2601:     return $retval;
                   2602: }
                   2603:
                   2604: ##
                   2605: # clickablePath(String pathname, boolean last_item_clickable)
                   2606: #
                   2607: # returns a html-ified path whereas each directory is a link for
                   2608: # faster navigation. last_item_clickable controls whether the
                   2609: # basename (last directory/file) is a link as well
                   2610: ##
                   2611: sub clickablePath($$) {
3.12      knu      2612:     my ($pathname,$clickLast) = @_;
3.1       knu      2613:     my $retval = '';
3.12      knu      2614:
3.1       knu      2615:     if ($pathname eq '/') {
                   2616:        # this should never happen - chooseCVSRoot() is
                   2617:        # intended to do this
                   2618:        $retval = "[$cvstree]";
                   2619:     }
                   2620:     else {
3.35    ! knu      2621:        $retval .= ' ' . &link("[$cvstree]", sprintf('%s/%s#dirlist',
        !          2622:                                                     $scriptname,
        !          2623:                                                     $query));
3.1       knu      2624:        my $wherepath = '';
                   2625:        my ($lastslash) = $pathname =~ m|/$|;
                   2626:        foreach (split(/\//, $pathname)) {
                   2627:            $retval = $retval . " / ";
                   2628:            $wherepath = $wherepath . '/' . $_;
                   2629:            my ($last) = "$wherepath/" eq "/$pathname"
3.3       knu      2630:                || $wherepath eq "/$pathname";
3.1       knu      2631:            if ($clickLast || !$last) {
3.35    ! knu      2632:                $retval .= &link($_, join('',
        !          2633:                                          $scriptname,
        !          2634:                                          urlencode($wherepath),
        !          2635:                                          (!$last || $lastslash ? '/' : ''),
        !          2636:                                          $query,
        !          2637:                                          (!$last || $lastslash ? "#dirlist" : "")));
3.1       knu      2638:            }
                   2639:            else { # do not make a link to the current dir
3.35    ! knu      2640:                $retval .= $_;
3.1       knu      2641:            }
                   2642:        }
                   2643:     }
                   2644:     return $retval;
                   2645: }
                   2646:
                   2647: sub chooseCVSRoot() {
                   2648:     my @foo;
                   2649:     foreach (sort keys %CVSROOT) {
                   2650:        if (-d $CVSROOT{$_}) {
                   2651:            push(@foo, $_);
                   2652:        }
                   2653:     }
                   2654:     if (@foo > 1) {
                   2655:        my ($k);
                   2656:        print "<form method=\"GET\" action=\"${scriptwhere}\">\n";
                   2657:        foreach $k (keys %input) {
3.12      knu      2658:            print "<input type=hidden NAME=$k VALUE=$input{$k}>\n"
3.1       knu      2659:                if ($input{$k}) && ($k ne "cvsroot");
                   2660:        }
                   2661:        # Form-Elements look wierd in Netscape if the background
                   2662:        # isn't gray and the form elements are not placed
                   2663:        # within a table ...
                   2664:        print "<table><tr>";
                   2665:        print "<td>CVS Root:</td>";
                   2666:        print "<td>\n<select name=\"cvsroot\"";
                   2667:        print " onchange=\"submit()\"" if ($use_java_script);
                   2668:        print ">\n";
                   2669:        foreach $k (@foo) {
                   2670:            print "<option value=\"$k\"";
3.3       knu      2671:            print " selected" if ($k eq $cvstree);
                   2672:            print ">" . ($CVSROOTdescr{$k} ? $CVSROOTdescr{$k} :
3.1       knu      2673:                        $k). "</option>\n";
                   2674:        }
                   2675:        print "</select>\n</td>";
                   2676:        print "<td><input type=submit value=\"Go\"></td>";
                   2677:        print "</tr></table></form>";
                   2678:     }
                   2679:     else {
                   2680:        # no choice ..
                   2681:        print "CVS Root: <b>[$cvstree]</b>";
                   2682:     }
                   2683: }
                   2684:
                   2685: sub chooseMirror() {
                   2686:     my ($mirror,$moremirrors);
                   2687:     $moremirrors = 0;
                   2688:     # This code comes from the original BSD-cvsweb
                   2689:     # and may not be useful for your site; If you don't
                   2690:     # set %MIRRORS this won't show up, anyway
                   2691:     #
3.12      knu      2692:     # Should perhaps exlude the current site somehow..
3.1       knu      2693:     if (keys %MIRRORS) {
                   2694:        print "\nThis cvsweb is mirrored in:\n";
                   2695:        foreach $mirror (keys %MIRRORS) {
                   2696:            print ", " if ($moremirrors);
3.35    ! knu      2697:            print &link(htmlquote($mirror),$MIRRORS{$mirror});
3.1       knu      2698:            $moremirrors = 1;
                   2699:        }
                   2700:        print "<p>\n";
                   2701:     }
                   2702: }
                   2703:
3.12      knu      2704: sub fileSortCmp() {
3.1       knu      2705:     my ($comp) = 0;
                   2706:     my ($c,$d,$af,$bf);
                   2707:
                   2708:     ($af = $a) =~ s/,v$//;
                   2709:     ($bf = $b) =~ s/,v$//;
                   2710:     my ($rev1,$date1,$log1,$author1,$filename1) = @{$fileinfo{$af}}
                   2711:         if (defined($fileinfo{$af}));
                   2712:     my ($rev2,$date2,$log2,$author2,$filename2) = @{$fileinfo{$bf}}
                   2713:         if (defined($fileinfo{$bf}));
                   2714:
                   2715:     if (defined($filename1) && defined($filename2) && $af eq $filename1 && $bf eq $filename2) {
                   2716:        # Two files
                   2717:        $comp = -revcmp($rev1, $rev2) if ($byrev && $rev1 && $rev2);
                   2718:        $comp = ($date2 <=> $date1) if ($bydate && $date1 && $date2);
                   2719:        $comp = ($log1 cmp $log2) if ($bylog && $log1 && $log2);
                   2720:        $comp = ($author1 cmp $author2) if ($byauthor && $author1 && $author2);
                   2721:     }
                   2722:     if ($comp == 0) {
                   2723:        # Directories first, then sorted on name if no other sort critera
                   2724:        # available.
                   2725:        my $ad = ((-d "$fullname/$a")?"D":"F");
                   2726:        my $bd = ((-d "$fullname/$b")?"D":"F");
                   2727:        ($c=$a) =~ s|.*/||;
                   2728:        ($d=$b) =~ s|.*/||;
                   2729:        $comp = ("$ad$c" cmp "$bd$d");
                   2730:     }
                   2731:     return $comp;
                   2732: }
                   2733:
                   2734: # make A url for downloading
3.12      knu      2735: sub download_url($$;$) {
3.1       knu      2736:     my ($url,$revision,$mimetype) = @_;
                   2737:
                   2738:     $revision =~ s/\b0\.//;
                   2739:
3.35    ! knu      2740:     if (defined($checkoutMagic)
3.1       knu      2741:        && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup")) {
3.35    ! knu      2742:        my $path = $where;
        !          2743:        $path =~ s|/[^/]*$|/|;
3.1       knu      2744:        $url = "$scriptname/$checkoutMagic/${path}$url";
                   2745:     }
                   2746:     $url .= "?rev=$revision";
3.35    ! knu      2747:     $url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
3.1       knu      2748:
3.35    ! knu      2749:     $url;
3.1       knu      2750: }
                   2751:
3.12      knu      2752: # Presents a link to download the
3.1       knu      2753: # selected revision
3.12      knu      2754: sub download_link($$$;$) {
3.35    ! knu      2755:     my ($url, $revision, $textlink, $mimetype) = @_;
        !          2756:     my ($fullurl) = download_url($url, $revision, $mimetype);
        !          2757:
        !          2758:     printf '<A HREF="%s"', htmlquote("$fullurl$barequery");
        !          2759:
3.1       knu      2760:     if ($open_extern_window && (!defined($mimetype) || $mimetype ne "text/x-cvsweb-markup")) {
3.35    ! knu      2761:        print ' target="cvs_checkout"';
3.1       knu      2762:        # we should have
                   2763:        #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   2764:        # in order to allow the user to resize the window; otherwise
                   2765:        # the user may resize the window, but on next checkout - zap -
                   2766:        # its original (configured s. cvsweb.conf) size is back again
                   2767:        # .. annoying (if $extern_window_(width|height) is defined)
                   2768:        # but this if (..) solution is far from perfect
                   2769:        # what we need to do as well is
                   2770:        # 1) save cvswin in an invisible frame that always exists
                   2771:        #    (document.cvswin will be void on next load)
                   2772:        # 2) on close of the cvs_checkout - window set the cvswin
                   2773:        #    variable to 'null' again - so that it will be
                   2774:        #    reopenend with the configured size
                   2775:        # anyone a JavaScript programmer ?
                   2776:        # .. so here without if (..):
                   2777:        # currently, the best way is to comment out the size parameters
                   2778:        # ($extern_window...) in cvsweb.conf.
                   2779:        if ($use_java_script) {
3.35    ! knu      2780:            my @attr = qw(resizeable scrollbars);
        !          2781:
        !          2782:            push @attr, qw(status toolbar)
        !          2783:              if (defined($mimetype) && $mimetype eq "text/html");
        !          2784:
        !          2785:            push @attr, "width=$extern_window_width"
        !          2786:              if (defined($extern_window_width));
        !          2787:
        !          2788:            push @attr, "height=$extern_window_height"
        !          2789:              if (defined($extern_window_height));
        !          2790:
        !          2791:            printf q` onClick="window.open('%s','cvs_checkout','%s');"`,
        !          2792:              htmlquote($fullurl), join(',', @attr);
3.1       knu      2793:        }
                   2794:     }
                   2795:     print "><b>$textlink</b></A>";
                   2796: }
                   2797:
                   2798: # Returns a Query string with the
                   2799: # specified parameter toggled
                   2800: sub toggleQuery($$) {
                   2801:     my ($toggle,$value) = @_;
                   2802:     my ($newquery,$var);
                   2803:     my (%vars);
                   2804:     %vars = %input;
                   2805:     if (defined($value)) {
                   2806:        $vars{$toggle} = $value;
                   2807:     }
                   2808:     else {
                   2809:        $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   2810:     }
                   2811:     # Build a new query of non-default paramenters
                   2812:     $newquery = "";
                   2813:     foreach $var (@stickyvars) {
                   2814:        my ($value) = defined($vars{$var}) ? $vars{$var} : "";
                   2815:        my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   2816:        if ($value ne $default) {
3.35    ! knu      2817:            $newquery .= "&" if ($newquery ne "");
3.1       knu      2818:            $newquery .= urlencode($var) . "=" . urlencode($value);
                   2819:        }
                   2820:     }
                   2821:     if ($newquery) {
                   2822:        return '?' . $newquery;
                   2823:     }
                   2824:     return "";
                   2825: }
                   2826:
3.12      knu      2827: sub urlencode($) {
3.35    ! knu      2828:     local($_) = @_;
        !          2829:
        !          2830:     s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
        !          2831:
        !          2832:
        !          2833:        $_;
        !          2834: }
        !          2835:
        !          2836: sub htmlquote($) {
        !          2837:     local($_) = @_;
        !          2838:
        !          2839:     # Special Characters; RFC 1866
        !          2840:     s/&/&amp;/g;
        !          2841:     s/\"/&quot;/g;
        !          2842:     s/</&lt;/g;
        !          2843:     s/>/&gt;/g;
        !          2844:
        !          2845:     $_;
3.1       knu      2846: }
                   2847:
3.12      knu      2848: sub http_header(;$) {
3.1       knu      2849:     my $content_type = shift || "text/html";
                   2850:     if (defined($moddate)) {
                   2851:        if ($is_mod_perl) {
3.23      knu      2852:            Apache->request->header_out("Last-Modified" => scalar gmtime($moddate) . " GMT");
3.1       knu      2853:        }
                   2854:        else {
3.4       knu      2855:            print "Last-Modified: " . scalar gmtime($moddate) . " GMT\r\n";
3.1       knu      2856:        }
                   2857:     }
                   2858:     if ($is_mod_perl) {
                   2859:        Apache->request->content_type($content_type);
                   2860:     }
                   2861:     else {
3.4       knu      2862:            print "Content-type: $content_type\r\n";
3.1       knu      2863:     }
                   2864:     if ($allow_compress && $maycompress) {
3.23      knu      2865:        if ($has_zlib || (defined($GZIPBIN) && open(GZIP, "|$GZIPBIN -1 -c"))) {
3.1       knu      2866:            if ($is_mod_perl) {
                   2867:                    Apache->request->content_encoding("x-gzip");
                   2868:                    Apache->request->header_out(Vary => "Accept-Encoding");
                   2869:                    Apache->request->send_http_header;
                   2870:            }
                   2871:            else {
3.4       knu      2872:                    print "Content-encoding: x-gzip\r\n";
                   2873:                    print "Vary: Accept-Encoding\r\n";  #RFC 2068, 14.43
                   2874:                    print "\r\n"; # Close headers
3.1       knu      2875:            }
                   2876:            $| = 1; $| = 0; # Flush header output
3.23      knu      2877:            if ($has_zlib) {
                   2878:                tie *GZIP, __PACKAGE__, \*STDOUT;
                   2879:            }
                   2880:            select(GZIP);
                   2881:            $gzip_open = 1;
3.1       knu      2882: #          print "<!-- gzipped -->" if ($content_type eq "text/html");
                   2883:        }
                   2884:        else {
                   2885:            if ($is_mod_perl) {
                   2886:                    Apache->request->send_http_header;
                   2887:            }
                   2888:            else {
3.4       knu      2889:                    print "\r\n"; # Close headers
3.1       knu      2890:            }
                   2891:            print "<font size=-1>Unable to find gzip binary in the \$PATH to compress output</font><br>";
                   2892:        }
                   2893:     }
                   2894:     else {
                   2895:            if ($is_mod_perl) {
                   2896:                    Apache->request->send_http_header;
                   2897:            }
                   2898:            else {
3.4       knu      2899:                    print "\r\n"; # Close headers
3.1       knu      2900:            }
                   2901:     }
                   2902: }
                   2903:
                   2904: sub html_header($) {
                   2905:     my ($title) = @_;
3.35    ! knu      2906:     my $version = '$zRevision: 1.103 $  $Revision: 3.34 $'; #'
3.1       knu      2907:     http_header();
                   2908:     print <<EOH;
                   2909: <!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN"
                   2910:  "http://www.w3.org/TR/REC-html40/loose.dtd">
                   2911: <html>
                   2912: <title>$title</title>
3.3       knu      2913: <!-- CVSweb $version -->
3.1       knu      2914: </head>
                   2915: $body_tag
                   2916: $logo <h1 align="center">$title</h1>
                   2917: EOH
                   2918: }
                   2919:
3.12      knu      2920: sub html_footer() {
3.1       knu      2921:     return "<hr noshade><address>$address</address>\n";
                   2922: }
                   2923:
3.12      knu      2924: sub link_tags($) {
3.1       knu      2925:     my ($tags) = @_;
                   2926:     my ($ret) = "";
                   2927:     my ($fileurl,$filename);
                   2928:
                   2929:     ($filename = $where) =~ s/^.*\///;
                   2930:     $fileurl = urlencode($filename);
                   2931:
                   2932:     foreach my $sym (split(", ", $tags)) {
                   2933:        $ret .= ",\n" if ($ret ne "");
3.35    ! knu      2934:        $ret .= &link($sym, $fileurl . toggleQuery('only_with_tag',$sym));
3.1       knu      2935:     }
3.35    ! knu      2936:     return "$ret\n";
3.1       knu      2937: }
                   2938:
                   2939: #
                   2940: # See if a module is listed in the config file's @HideModule list.
                   2941: #
3.12      knu      2942: sub forbidden_module($) {
3.1       knu      2943:     my($module) = @_;
3.12      knu      2944:
3.1       knu      2945:     for (my $i=0; $i < @HideModules; $i++) {
                   2946:        return 1 if $module eq $HideModules[$i];
                   2947:     }
                   2948:
                   2949:     return 0;
3.25      knu      2950: }
                   2951:
                   2952: # Close the GZIP handle remove the tie.
                   2953:
                   2954: sub gzipclose {
                   2955:        if ($gzip_open) {
                   2956:            select(STDOUT);
                   2957:            close(GZIP);
                   2958:            untie *GZIP;
                   2959:            $gzip_open = 0;
                   2960:        }
3.23      knu      2961: }
                   2962:
                   2963: # implement a gzipped file handle via the Compress:Zlib compression
                   2964: # library.
                   2965:
                   2966: sub MAGIC1() { 0x1f }
                   2967: sub MAGIC2() { 0x8b }
                   2968: sub OSCODE() { 3    }
                   2969:
                   2970: sub TIEHANDLE {
                   2971:        my ($class, $out) = @_;
                   2972:        my ($d) = Compress::Zlib::deflateInit(-Level => Compress::Zlib::Z_BEST_COMPRESSION(),
                   2973:                -WindowBits => -Compress::Zlib::MAX_WBITS()) or return undef;
                   2974:        my ($o) = {
                   2975:                handle => $out,
                   2976:                dh => $d,
                   2977:                crc => 0,
                   2978:                len => 0,
                   2979:        };
                   2980:        my ($header) = pack("c10", MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(), 0,0,0,0,0,0, OSCODE);
                   2981:        print {$o->{handle}} $header;
                   2982:        return bless($o, $class);
                   2983: }
                   2984:
                   2985: sub PRINT {
                   2986:        my ($o) = shift;
                   2987:        my ($buf) = join(defined $, ? $, : "",@_);
                   2988:        my ($len) = length($buf);
                   2989:        my ($compressed, $status) = $o->{dh}->deflate($buf);
                   2990:        print {$o->{handle}} $compressed if defined($compressed);
                   2991:        $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   2992:        $o->{len} += $len;
                   2993:        return $len;
                   2994: }
                   2995:
                   2996: sub PRINTF {
                   2997:        my ($o) = shift;
                   2998:        my ($fmt) = shift;
                   2999:        my ($buf) = sprintf($fmt, @_);
                   3000:        my ($len) = length($buf);
                   3001:        my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3002:        print {$o->{handle}} $compressed if defined($compressed);
                   3003:        $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3004:        $o->{len} += $len;
                   3005:        return $len;
                   3006: }
                   3007:
                   3008: sub WRITE {
                   3009:        my ($o, $buf, $len, $off) = @_;
                   3010:        my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   3011:        print {$o->{handle}} $compressed if defined($compressed);
                   3012:        $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   3013:        $o->{len} += $len;
                   3014:        return $len;
                   3015: }
                   3016:
                   3017: sub CLOSE {
                   3018:        my ($o) = @_;
                   3019:        return if !defined( $o->{dh});
                   3020:        my ($buf) = $o->{dh}->flush();
                   3021:        $buf .= pack("V V", $o->{crc}, $o->{len});
                   3022:        print {$o->{handle}} $buf;
                   3023:        undef $o->{dh};
                   3024: }
                   3025:
                   3026: sub DESTROY {
                   3027:        my ($o) = @_;
                   3028:        CLOSE($o);
1.1       jfieber  3029: }

CVSweb