Annotation of cvsweb/cvsweb.cgi, Revision 1.9
1.1 jfieber 1: #!/usr/bin/perl -s
2: #
3: # cvsweb - a CGI interface to the CVS tree.
4: #
5: # Written by Bill Fenner <fenner@parc.xerox.com> on his own time.
6: # Insert BSD copyright here.
7: #
8: #HTTP_USER_AGENT: Mozilla/1.1N (X11; I; SunOS 4.1.3_U1 sun4m) via proxy gateway CERN-HTTPD/3.0 libwww/2.17
9: #SERVER_NAME: www.freebsd.org
10: #QUERY_STRING: baz
11: #SCRIPT_FILENAME: /usr/local/www/cgi-bin/env.pl
12: #SERVER_PORT: 80
13: #HTTP_ACCEPT: */*, image/gif, image/x-xbitmap, image/jpeg
14: #SERVER_PROTOCOL: HTTP/1.0
15: #HTTP_COOKIE: s=beta26429821397802167
16: #PATH_INFO: /foo/bar
17: #REMOTE_ADDR: 13.1.64.94
18: #DOCUMENT_ROOT: /usr/local/www/data/
19: #PATH: /sbin:/bin:/usr/sbin:/usr/bin
20: #PATH_TRANSLATED: /usr/local/www/data//foo/bar
21: #GATEWAY_INTERFACE: CGI/1.1
22: #REQUEST_METHOD: GET
23: #SCRIPT_NAME: /cgi-bin/env.pl
24: #SERVER_SOFTWARE: Apache/1.0.0
25: #REMOTE_HOST: beta.xerox.com
26: #SERVER_ADMIN: webmaster@freebsd.org
27: #
28: require 'timelocal.pl';
29: require 'ctime.pl';
30:
1.2 jfieber 31: $hsty_base = "";
32: require 'cgi-style.pl';
33:
1.1 jfieber 34: $cvsroot = '/home/ncvs';
35: $intro = "
36: This is a WWW interface to the FreeBSD CVS tree.
37: You can browse the file hierarchy by picking directories
38: (which have slashes after them, e.g. <b>src/</b>).
39: If you pick a file, you will see the revision history
40: for that file.
41: Selecting a revision number will download that revision of
42: the file. There is a link at each revision to display
43: diffs between that revision and the previous one, and
44: a form at the bottom of the page that allows you to
45: display diffs between arbitrary revisions.
46: <p>
1.7 fenner 47: If you would like to use this CGI script on your own web server and
48: CVS tree, see <A HREF=\"http://www.freebsd.org/~fenner/cvsweb/\">
49: the CVSWeb distribution site</A>.
50: <p>
1.1 jfieber 51: Please send any suggestions, comments, etc. to
52: <A HREF=\"mailto:fenner@freebsd.org\">Bill Fenner <fenner@freebsd.org></A>
53: ";
54: $shortinstr = "
55: Click on a directory to enter that directory. Click on a file to display
56: its revision history and to get a
57: chance to display diffs between revisions.
58: ";
59:
60: $verbose = $v;
61: ($where = $ENV{'PATH_INFO'}) =~ s|^/||;
62: $where =~ s|/$||;
63: $fullname = $cvsroot . '/' . $where;
64: ($scriptname = $ENV{'SCRIPT_NAME'}) =~ s|^/?|/|;
65: $scriptname =~ s|/$||;
66: $scriptwhere = $scriptname . '/' . $where;
67: $scriptwhere =~ s|/$||;
68:
69: if (!-d $cvsroot) {
70: &fatal("500 Internal Error",'$CVSROOT not found!');
71: }
1.7 fenner 72:
1.9 ! fenner 73: if ($query = $ENV{'QUERY_STRING'}) {
! 74: foreach (split(/&/, $query)) {
1.7 fenner 75: s/%(..)/sprintf("%c", hex($1))/ge; # unquote %-quoted
76: if (/(\S+)=(.*)/) {
77: $input{$1} = $2;
78: } else {
79: $input{$_}++;
80: }
81: }
1.9 ! fenner 82: $query = "?" . $query;
1.7 fenner 83: }
1.1 jfieber 84: if (-d $fullname) {
85: opendir(DIR, $fullname) || &fatal("404 Not Found","$where: $!");
86: @dir = readdir(DIR);
87: closedir(DIR);
88: if ($where eq '') {
1.2 jfieber 89: print &html_header("FreeBSD CVS Repository");
1.1 jfieber 90: print $intro;
91: } else {
1.2 jfieber 92: print &html_header("/$where");
1.1 jfieber 93: print $shortinstr;
94: }
95: print "<p>Current directory: <b>/$where</b>\n";
1.2 jfieber 96: print "<P><HR NOSHADE>\n";
1.1 jfieber 97: # Using <MENU> in this manner violates the HTML2.0 spec but
98: # provides the results that I want in most browsers. Another
99: # case of layout spooging up HTML.
100: print "<MENU>\n";
1.9 ! fenner 101: lookingforattic:
! 102: for ($i = 0; $i <= $#dir; $i++) {
! 103: if ($dir[$i] eq "Attic") {
! 104: last lookingforattic;
! 105: }
! 106: }
! 107: if (!$input{"showattic"} && ($i <= $#dir) &&
! 108: opendir(DIR, $fullname . "/Attic")) {
! 109: splice(@dir, $i, 1,
! 110: grep((s|^|Attic/|,!m|/\.|), readdir(DIR)));
! 111: closedir(DIR);
! 112: }
! 113: # Sort without the Attic/ pathname.
! 114: foreach (sort {($c=$a)=~s|.*/||;($d=$b)=~s|.*/||;($c cmp $d)} @dir) {
1.1 jfieber 115: if ($_ eq '.') {
116: next;
117: }
1.9 ! fenner 118: if (s|^Attic/||) {
! 119: $attic = " (in the Attic)";
! 120: } else {
! 121: $attic = "";
! 122: }
1.1 jfieber 123: if ($_ eq '..') {
124: next if ($where eq '');
125: ($updir = $scriptwhere) =~ s|[^/]+$||;
126: print "<IMG SRC=\"/icons/back.gif\"> ",
1.9 ! fenner 127: &link("Previous Directory",$updir . $query), "<BR>";
1.7 fenner 128: # print "<IMG SRC=???> ",
129: # &link("Directory-wide diffs", $scriptwhere . '/*'), "<BR>";
1.1 jfieber 130: } elsif (-d $fullname . "/" . $_) {
131: print "<IMG SRC=\"/icons/dir.gif\"> ",
1.9 ! fenner 132: &link($_ . "/", $scriptwhere . '/' . $_ . '/' . $query), $attic, "<BR>";
1.1 jfieber 133: } elsif (s/,v$//) {
1.7 fenner 134: # TODO: add date/time? How about sorting?
1.1 jfieber 135: print "<IMG SRC=\"/icons/text.gif\"> ",
1.9 ! fenner 136: &link($_, $scriptwhere . '/' .
! 137: ($attic ? "Attic/" : "") . $_ . $query),
! 138: $attic, "<BR>";
1.1 jfieber 139: }
140: }
141: print "</MENU>\n";
1.9 ! fenner 142: if ($input{"only_on_branch"}) {
! 143: print "<HR><FORM METHOD=\"GET\" ACTION=\"${scriptwhere}\">\n";
! 144: print "Currently showing only branch $input{'only_on_branch'}.\n";
! 145: $input{"only_on_branch"}="";
! 146: foreach $k (keys %input) {
! 147: print "<INPUT TYPE=hidden NAME=$k VALUE=$input{$k}>\n" if $input{$k};
! 148: }
! 149: print "<INPUT TYPE=SUBMIT VALUE=\"Show all branches\">\n";
! 150: print "</FORM>\n";
! 151: }
! 152: $formwhere = $scriptwhere;
! 153: $formwhere =~ s|Attic/?$|| if ($input{"showattic"});
! 154: print "<HR><FORM METHOD=\"GET\" ACTION=\"${formwhere}\">\n";
! 155: $input{"showattic"}=!$input{"showattic"};
! 156: foreach $k (keys %input) {
! 157: print "<INPUT TYPE=hidden NAME=$k VALUE=$input{$k}>\n" if $input{$k};
! 158: }
! 159: print "<INPUT TYPE=SUBMIT VALUE=\"";
! 160: print ($input{"showattic"} ? "Show" : "Hide");
! 161: print " attic directories\">\n";
! 162: print "</FORM>\n";
1.2 jfieber 163: print &html_footer;
1.1 jfieber 164: print "</BODY></HTML>\n";
165: } elsif (-f $fullname . ',v') {
1.7 fenner 166: if ($input{'rev'} =~ /^[\d\.]+$/) {
167: &checkout($fullname, $input{'rev'});
168: exit;
169: }
170: if ($input{'r1'} && $input{'r2'}) {
171: &dodiff($fullname, $input{'r1'}, $input{'tr1'},
172: $input{'r2'}, $input{'tr2'}, $input{'f'});
1.1 jfieber 173: exit;
174: }
175: open(RCS, "rlog '$fullname'|") || &fatal("500 Internal Error",
176: "Failed to spawn rlog");
177: while (<RCS>) {
178: print if ($verbose);
1.8 fenner 179: if (/^branch:\s+([\d\.]+)/) {
180: $curbranch = $1;
181: }
1.1 jfieber 182: if ($symnames) {
183: if (/^\s+([^:]+):\s+([\d\.]+)/) {
184: $symrev{$1} = $2;
185: if ($revsym{$2}) {
186: $revsym{$2} .= ", ";
187: }
188: $revsym{$2} .= $1;
189: } else {
190: $symnames = 0;
191: }
192: } elsif (/^symbolic names/) {
193: $symnames = 1;
194: } elsif (/^-----/) {
195: last;
196: }
197: }
1.7 fenner 198:
199: if ($onlyonbranch = $input{'only_on_branch'}) {
200: ($onlyonbranch = $symrev{$onlyonbranch}) =~ s/\.0\././;
201: ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
202: }
203:
1.1 jfieber 204: # each log entry is of the form:
205: # ----------------------------
206: # revision 3.7.1.1
207: # date: 1995/11/29 22:15:52; author: fenner; state: Exp; lines: +5 -3
208: # log info
209: # ----------------------------
210: logentry:
211: while (!/^=========/) {
212: $_ = <RCS>;
213: print "R:", $_ if ($verbose);
214: if (/^revision ([\d\.]+)/) {
215: $rev = $1;
216: } elsif (/^========/ || /^----------------------------$/) {
217: next logentry;
218: } else {
219: &fatal("500 Internal Error","Error parsing RCS output: $_");
220: }
221: $_ = <RCS>;
222: print "D:", $_ if ($verbose);
1.9 ! fenner 223: if (m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);|) {
1.1 jfieber 224: $yr = $1;
225: # damn 2-digit year routines
226: if ($yr > 100) {
227: $yr -= 1900;
228: }
229: $date{$rev} = &timelocal($6,$5,$4,$3,$2 - 1,$yr);
230: $author{$rev} = $7;
1.9 ! fenner 231: $state{$rev} = $8;
1.1 jfieber 232: } else {
233: &fatal("500 Internal Error", "Error parsing RCS output: $_");
234: }
235: line:
236: while (<RCS>) {
237: print "L:", $_ if ($verbose);
238: next line if (/^branches:\s/);
239: last line if (/^----------------------------$/ || /^=========/);
240: $log{$rev} .= $_;
241: }
242: print "E:", $_ if ($verbose);
243: }
244: close(RCS);
245: print "Done reading RCS file\n" if ($verbose);
246: #
247: # Sort the revisions into commit-date order.
248: @revorder = sort {$date{$b} <=> $date{$a}} keys %date;
249: print "Done sorting revisions\n" if ($verbose);
250: #
251: # HEAD is an artificial tag which is simply the highest tag number on the main
1.8 fenner 252: # branch, unless there is a branch tag in the RCS file in which case it's the
253: # highest revision on that branch. Find it by looking through @revorder; it
254: # is the first commit listed on the appropriate branch.
255: $headrev = $curbranch || "1";
1.1 jfieber 256: revision:
257: for ($i = 0; $i <= $#revorder; $i++) {
1.8 fenner 258: if ($revorder[$i] =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
1.1 jfieber 259: if ($revsym{$revorder[$i]}) {
260: $revsym{$revorder[$i]} .= ", ";
261: }
262: $revsym{$revorder[$i]} .= "HEAD";
263: $symrev{"HEAD"} = $revorder[$i];
264: last revision;
265: }
266: }
267: print "Done finding HEAD\n" if ($verbose);
268: #
269: # Now that we know all of the revision numbers, we can associate
270: # absolute revision numbers with all of the symbolic names, and
271: # pass them to the form so that the same association doesn't have
272: # to be built then.
273: #
274: # should make this a case-insensitive sort
275: foreach (sort keys %symrev) {
276: $rev = $symrev{$_};
277: if ($rev =~ /^(\d+(\.\d+)+)\.0\.(\d+)$/) {
1.7 fenner 278: push(@branchnames, $_);
1.1 jfieber 279: #
280: # A revision number of A.B.0.D really translates into
281: # "the highest current revision on branch A.B.D".
282: #
283: # If there is no branch A.B.D, then it translates into
284: # the head A.B .
285: #
286: $head = $1;
287: $branch = $3;
288: $regex = $head . "." . $branch;
289: $regex =~ s/\./\./g;
290: # <
291: # \____/
292: $rev = $head;
293:
294: revision:
295: foreach $r (@revorder) {
296: if ($r =~ /^${regex}/) {
297: $rev = $head . "." . $branch;
298: last revision;
299: }
300: }
301: $revsym{$rev} .= ", " if ($revsym{$rev});
302: $revsym{$rev} .= $_;
1.8 fenner 303: if ($rev ne $head) {
304: $branchpoint{$head} .= ", " if ($branchpoint{$head});
305: $branchpoint{$head} .= $_;
306: }
1.1 jfieber 307: }
308: $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
309: }
310: print "Done associating revisions with branches\n" if ($verbose);
1.2 jfieber 311: print &html_header("CVS log for $where");
1.9 ! fenner 312: ($upwhere = $where) =~ s|(Attic/)?[^/]+$||;
! 313: print "Up to ", &link($upwhere,$scriptname . "/" . $upwhere . $query);
1.1 jfieber 314: print "<BR>\n";
315: print "<A HREF=\"#diff\">Request diff between arbitrary revisions</A>\n";
1.2 jfieber 316: print "<HR NOSHADE>\n";
1.8 fenner 317: if ($curbranch) {
318: print "Default branch is ";
319: print ($revsym{$curbranch} || $curbranch);
320: } else {
321: print "No default branch";
322: }
323: print "<BR><HR NOSHADE>\n";
1.1 jfieber 324: # The other possible U.I. I can see is to have each revision be hot
325: # and have the first one you click do ?r1=foo
326: # and since there's no r2 it keeps going & the next one you click
327: # adds ?r2=foo and performs the query.
328: # I suppose there's no reason we can't try both and see which one
329: # people prefer...
330:
331: for ($i = 0; $i <= $#revorder; $i++) {
332: $_ = $revorder[$i];
1.7 fenner 333: ($br = $_) =~ s/\.\d+$//;
334: next if ($onlyonbranch && $br ne $onlyonbranch &&
335: $_ ne $onlybranchpoint);
1.4 fenner 336: print "<a NAME=\"rev$_\"></a>";
337: foreach $sym (split(", ", $revsym{$_})) {
338: print "<a NAME=\"$sym\"></a>";
339: }
340: if ($revsym{$br} && !$nameprinted{$br}) {
341: foreach $sym (split(", ", $revsym{$br})) {
342: print "<a NAME=\"$sym\"></a>";
343: }
344: $nameprinted{$br}++;
345: }
346: print "\n";
1.1 jfieber 347: print "<A HREF=\"$scriptwhere?rev=$_\"><b>$_</b></A>";
348: if (/^1\.1\.1\.\d+$/) {
349: print " <i>(vendor branch)</i>";
350: }
351: print " <i>" . &ctime($date{$_}) . "</i> by ";
352: print "<i>" . $author{$_} . "</i>\n";
353: if ($revsym{$_}) {
354: print "<BR>CVS Tags: <b>$revsym{$_}</b>";
355: }
1.4 fenner 356: if ($revsym{$br}) {
1.1 jfieber 357: if ($revsym{$_}) {
358: print "; ";
359: } else {
360: print "<BR>";
361: }
1.8 fenner 362: print "Branch: <b>$revsym{$br}</b>\n";
363: }
364: if ($branchpoint{$_}) {
365: if ($revsym{$br} || $revsym{$_}) {
366: print "; ";
367: } else {
368: print "<BR>";
369: }
370: print "Branch point for: <b>$branchpoint{$_}</b>\n";
1.1 jfieber 371: }
372: # Find the previous revision on this branch.
373: @prevrev = split(/\./, $_);
374: if (--$prevrev[$#prevrev] == 0) {
375: # If it was X.Y.Z.1, just make it X.Y
376: if ($#prevrev > 1) {
377: pop(@prevrev);
378: pop(@prevrev);
379: } else {
380: # It was rev 1.1 (XXX does CVS use revisions
381: # greater than 1.x?)
382: if ($prevrev[0] != 1) {
383: print "<i>* I can't figure out the previous revision! *</i>\n";
384: }
385: }
386: }
387: if ($prevrev[$#prevrev] != 0) {
388: $prev = join(".", @prevrev);
1.7 fenner 389: print "<BR><A HREF=\"${scriptwhere}.diff?r1=$prev";
1.1 jfieber 390: print "&r2=$_\">Diffs to $prev</A>\n";
391: #
392: # Plus, if it's on a branch, and it's not a vendor branch,
393: # offer to diff with the immediately-preceding commit if it
394: # is not the previous revision as calculated above
395: # and if it is on the HEAD (or at least on a higher branch)
396: # (e.g. change gets committed and then brought
397: # over to -stable)
398: if (!/^1\.1\.1\.\d+$/ && ($i != $#revorder) &&
399: ($prev ne $revorder[$i+1])) {
400: @tmp1 = split(/\./, $revorder[$i+1]);
401: @tmp2 = split(/\./, $_);
402: if ($#tmp1 < $#tmp2) {
1.7 fenner 403: print "; <A HREF=\"${scriptwhere}.diff?r1=$revorder[$i+1]";
1.1 jfieber 404: print "&r2=$_\">Diffs to $revorder[$i+1]</A>\n";
405: }
406: }
407: }
1.9 ! fenner 408: if ($state{$_} eq "dead") {
! 409: print "<BR><B><I>FILE REMOVED</I></B>\n";
! 410: }
1.1 jfieber 411: print "<PRE>\n";
1.7 fenner 412: print &htmlify($log{$_}, 1);
1.2 jfieber 413: print "</PRE><HR NOSHADE>\n";
1.1 jfieber 414: }
415: print "<A NAME=diff>\n";
416: print "This form allows you to request diff's between any two\n";
417: print "revisions of a file. You may select a symbolic revision\n";
418: print "name using the selection box or you may type in a numeric\n";
419: print "name using the type-in text box.\n";
420: print "</A><P>\n";
1.7 fenner 421: print "<FORM METHOD=\"GET\" ACTION=\"${scriptwhere}.diff\">\n";
1.1 jfieber 422: print "Diffs between \n";
423: print "<SELECT NAME=\"r1\">\n";
424: print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
425: print $sel;
426: print "</SELECT>\n";
427: print "<INPUT TYPE=\"TEXT\" NAME=\"tr1\" VALUE=\"$revorder[$#revorder]\">\n";
428: print " and \n";
429: print "<SELECT NAME=\"r2\">\n";
430: print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
431: print $sel;
432: print "</SELECT>\n";
433: print "<INPUT TYPE=\"TEXT\" NAME=\"tr2\" VALUE=\"$revorder[0]\">\n";
434: print "<BR><INPUT TYPE=RADIO NAME=\"f\" VALUE=u CHECKED>Unidiff<br>\n";
435: print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=c>Context diff<br>\n";
1.7 fenner 436: print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=s>Side-by-Side<br>\n";
1.1 jfieber 437: print "<INPUT TYPE=SUBMIT VALUE=\"Get Diffs\">\n";
438: print "</FORM>\n";
1.7 fenner 439: print "<HR noshade>\n";
440: print "<A name=branch>\n";
441: print "You may select to see revision information from only\n";
442: print "a single branch.\n";
443: print "</A><P>\n";
444: print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
445: print "Branch: \n";
446: print "<SELECT NAME=\"only_on_branch\">\n";
1.9 ! fenner 447: print "<OPTION VALUE=\"\"";
! 448: print " SELECTED" if ($input{"only_on_branch"} eq "");
! 449: print ">Show all branches\n";
1.7 fenner 450: foreach (sort @branchnames) {
1.9 ! fenner 451: print "<OPTION";
! 452: print " SELECTED" if ($input{"only_on_branch"} eq $_);
! 453: print ">${_}\n";
1.7 fenner 454: }
455: print "</SELECT>\n";
456: print "<INPUT TYPE=SUBMIT VALUE=\"View Branch\">\n";
457: print "</FORM>\n";
1.2 jfieber 458: print &html_footer;
1.1 jfieber 459: print "</BODY></HTML>\n";
1.7 fenner 460: } elsif ($fullname =~ s/\.diff$// && -f $fullname . ",v" &&
461: $input{'r1'} && $input{'r2'}) {
1.9 ! fenner 462: # Allow diffs using the ".diff" extension
! 463: # so that browsers that default to the URL
! 464: # for a save filename don't save diff's as
! 465: # e.g. foo.c
1.7 fenner 466: &dodiff($fullname, $input{'r1'}, $input{'tr1'},
467: $input{'r2'}, $input{'tr2'}, $input{'f'});
1.9 ! fenner 468: exit;
! 469: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| &&
! 470: -f $newname . ",v") {
! 471: # The file has been removed and is in the Attic.
! 472: # Send a redirect pointing to the file in the Attic.
! 473: ($newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
! 474: &redirect($newplace);
1.7 fenner 475: exit;
476: } elsif (0 && (@files = &safeglob($fullname . ",v"))) {
477: print "Content-type: text/plain\n\n";
478: print "You matched the following files:\n";
479: print join("\n", @files);
480: # Find the tags from each file
481: # Display a form offering diffs between said tags
1.1 jfieber 482: } else {
1.5 fenner 483: # Assume it's a module name with a potential path following it.
1.7 fenner 484: ($module = $where) =~ s|/.*||;
1.5 fenner 485: $xtra = $&;
1.4 fenner 486: # Is there an indexed version of modules?
487: if (open(MODULES, "$cvsroot/CVSROOT/modules")) {
488: while (<MODULES>) {
1.8 fenner 489: if (/^(\S+)\s+(\S+)/o && $module eq $1
490: && -d "${cvsroot}/$2" && $module ne $2) {
491: &redirect($scriptname . '/' . $2 . $xtra);
1.4 fenner 492: }
493: }
494: }
1.7 fenner 495: &fatal("404 Not Found","$where: no such file or directory");
1.1 jfieber 496: }
497:
498: sub htmlify {
1.7 fenner 499: local($string, $pr) = @_;
1.1 jfieber 500:
1.2 jfieber 501: $string =~ s/&/&/g;
1.1 jfieber 502: $string =~ s/</</g;
503: $string =~ s/>/>/g;
504:
1.7 fenner 505: if ($pr) {
506: $string =~ s|\bpr(\W+[a-z]+/\W*)(\d+)|<A HREF=/cgi/query-pr.cgi?pr=$2>$&</A>|ig;
507: }
508:
1.1 jfieber 509: $string;
510: }
511:
512: sub link {
513: local($name, $where) = @_;
514:
515: "<A HREF=\"$where\">$name</A>\n";
516: }
517:
518: sub revcmp {
519: local($rev1, $rev2) = @_;
520: local(@r1) = split(/\./, $rev1);
521: local(@r2) = split(/\./, $rev2);
522: local($a,$b);
523:
1.5 fenner 524: while (($a = shift(@r1)) && ($b = shift(@r2))) {
1.1 jfieber 525: if ($a != $b) {
526: return $a <=> $b;
527: }
528: }
529: if (@r1) { return 1; }
530: if (@r2) { return -1; }
531: return 0;
532: }
533:
534: sub fatal {
535: local($errcode, $errmsg) = @_;
536: print "Status: $errcode\n";
1.7 fenner 537: print &html_header("Error");
538: # print "Content-type: text/html\n";
539: # print "\n";
540: # print "<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n";
541: # print "<BODY>Error: $errmsg</BODY></HTML>\n";
542: print "Error: $errmsg\n";
543: print &html_footer;
1.4 fenner 544: exit(1);
545: }
546:
547: sub redirect {
548: local($url) = @_;
549: print "Status: 301 Moved\n";
550: print "Location: $url\n";
1.7 fenner 551: print &html_header("Moved");
552: # print "Content-type: text/html\n";
553: # print "\n";
554: # print "<HTML><HEAD><TITLE>Moved</TITLE></HEAD>\n";
555: # print "<BODY>This document is located <A HREF=$url>here</A>.</BODY></HTML>\n";
556: print "This document is located <A HREF=$url>here</A>.\n";
557: print &html_footer;
1.1 jfieber 558: exit(1);
1.7 fenner 559: }
560:
561: sub safeglob {
562: local($filename) = @_;
563: local($dirname);
564: local(@results);
565:
566: ($dirname = $filename) =~ s|/[^/]+$||;
567: $filename =~ s|.*/||;
568:
569: if (opendir(DIR, $dirname)) {
570: $glob = $filename;
571: # transform filename from glob to regex. Deal with:
572: # [, {, ?, * as glob chars
573: # make sure to escape all other regex chars
1.8 fenner 574: $glob =~ s/([\.\(\)\|\+])/\\$1/g;
1.7 fenner 575: $glob =~ s/\*/.*/g;
576: $glob =~ s/\?/./g;
1.8 fenner 577: $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
1.7 fenner 578: foreach (readdir(DIR)) {
579: if (/^${glob}$/) {
580: push(@results, $dirname . "/" .$_);
581: }
582: }
583: }
584:
585: @results;
586: }
1.8 fenner 587:
1.7 fenner 588: sub checkout {
589: local($fullname, $rev) = @_;
590:
591: open(RCS, "co -p$rev '$fullname' 2>&1 |") ||
592: &fail("500 Internal Error", "Couldn't co: $!");
593: # /home/ncvs/src/sys/netinet/igmp.c,v --> standard output
1.8 fenner 594: # or
595: # /home/ncvs/src/sys/netinet/igmp.c,v --> stdout
1.7 fenner 596: # revision 1.1.1.2
597: # /*
598: $_ = <RCS>;
1.8 fenner 599: if (/^(\S+),v\s+-->\s+st(andar)?d ?out(put)?\s*$/o && $1 eq $fullname) {
1.7 fenner 600: # As expected
601: } else {
602: &fatal("500 Internal Error",
603: "Unexpected output from co: $_");
604: }
605: $_ = <RCS>;
606: if (/^revision\s+$rev\s*$/) {
607: # As expected
608: } else {
609: &fatal("500 Internal Error",
610: "Unexpected output from co: $_");
611: }
612: $| = 1;
613: print "Content-type: text/plain\n\n";
614: print <RCS>;
615: close(RCS);
616: }
617:
618: sub dodiff {
619: local($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
620:
621: if ($r1 =~ /([^:]+)(:(.+))?/) {
622: $rev1 = $1;
623: $sym1 = $3;
624: }
625: if ($rev1 eq 'text') {
626: $rev1 = $tr1;
627: }
628: if ($r2 =~ /([^:]+)(:(.+))?/) {
629: $rev2 = $1;
630: $sym2 = $3;
631: }
632: if ($rev2 eq 'text') {
633: $rev2 = $tr2;
634: }
635: if (!($rev1 =~ /^[\d\.]+$/) || !($rev2 =~ /^[\d\.]+$/)) {
636: &fatal("404 Not Found",
637: "Malformed query \"$ENV{'QUERY_STRING'}\"");
638: }
639: #
640: # rev1 and rev2 are now both numeric revisions.
641: # Thus we do a DWIM here and swap them if rev1 is after rev2.
642: # XXX should we warn about the fact that we do this?
643: if (&revcmp($rev1,$rev2) > 0) {
644: ($tmp1, $tmp2) = ($rev1, $sym1);
645: ($rev1, $sym1) = ($rev2, $sym2);
646: ($rev2, $sym2) = ($tmp1, $tmp2);
647: }
648: #
649: # XXX Putting '-p' here is a personal preference
650: if ($f eq 'c') {
651: $difftype = '-p -c';
652: $diffname = "Context diff";
653: } elsif ($f eq 's') {
654: $difftype = '--side-by-side --width=164';
655: $diffname = "Side by Side";
656: } else {
657: $difftype = '-p -u';
658: $diffname = "Unidiff";
659: }
660: # XXX should this just be text/plain
661: # or should it have an HTML header and then a <pre>
662: print "Content-type: text/plain\n\n";
663: open(RCSDIFF, "rcsdiff $difftype -r$rev1 -r$rev2 '$fullname' 2>&1 |") ||
664: &fail("500 Internal Error", "Couldn't rcsdiff: $!");
665: #
666: #===================================================================
667: #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
668: #retrieving revision 1.16
669: #retrieving revision 1.17
670: #diff -c -r1.16 -r1.17
671: #*** /home/ncvs/src/sys/netinet/tcp_output.c 1995/11/03 22:08:08 1.16
672: #--- /home/ncvs/src/sys/netinet/tcp_output.c 1995/12/05 17:46:35 1.17
673: #
674: # Ideas:
675: # - nuke the stderr output if it's what we expect it to be
676: # - Add "no differences found" if the diff command supplied no output.
677: #
678: #*** src/sys/netinet/tcp_output.c 1995/11/03 22:08:08 1.16
679: #--- src/sys/netinet/tcp_output.c 1995/12/05 17:46:35 1.17 RELENG_2_1_0
680: # (bogus example, but...)
681: #
682: if ($difftype eq '-u') {
683: $f1 = '---';
684: $f2 = '\+\+\+';
685: } else {
686: $f1 = '\*\*\*';
687: $f2 = '---';
688: }
689: while (<RCSDIFF>) {
690: if (m|^$f1 $cvsroot|o) {
691: s|$cvsroot/||o;
692: if ($sym1) {
693: chop;
694: $_ .= " " . $sym1 . "\n";
695: }
696: } elsif (m|^$f2 $cvsroot|o) {
697: s|$cvsroot/||o;
698: if ($sym2) {
699: chop;
700: $_ .= " " . $sym2 . "\n";
701: }
702: }
703: print $_;
704: }
705: close(RCSDIFF);
1.1 jfieber 706: }
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