+sub cgi () {
+ eval q{use CGI};
+ my $q=CGI->new;
+
+ my $do=$q->param('do');
+ if (! defined $do || ! length $do) {
+ error("\"do\" parameter missing");
+ }
+
+ my ($page)=$q->param('page')=~/$wiki_file_regexp/; # untaint
+ if (! defined $page || ! length $page || $page ne $q->param('page') ||
+ $page=~/$wiki_file_prune_regexp/ || $page=~/^\//) {
+ error("bad page name");
+ }
+
+ my $action=$q->request_uri;
+ $action=~s/\?.*//;
+
+ if ($do eq 'edit') {
+ my $content="";
+ if (exists $pagesources{lc($page)}) {
+ $content=readfile("$srcdir/$pagesources{lc($page)}");
+ $content=~s/\n/\r\n/g;
+ }
+ $q->param("do", "save");
+ print $q->header,
+ $q->start_html("$wikiname: Editing $page"),
+ $q->h1("$wikiname: Editing $page"),
+ $q->start_form(-action => $action),
+ $q->hidden('do'),
+ $q->hidden('page'),
+ $q->textarea(-name => 'content',
+ -default => $content,
+ -rows => 20,
+ -columns => 80),
+ $q->br,
+ "Optional comment about this change",
+ $q->br,
+ $q->textfield(-name => "comments", -size => 80),
+ $q->br,
+ $q->submit("Save Changes"),
+ $q->end_form,
+ $q->end_html;
+ }
+ elsif ($do eq 'save') {
+ my $file=$page.$default_pagetype;
+ my $newfile=1;
+ if (exists $pagesources{lc($page)}) {
+ $file=$pagesources{lc($page)};
+ $newfile=0;
+ }
+
+ my $content=$q->param('content');
+ $content=~s/\r\n/\n/g;
+ $content=~s/\r/\n/g;
+ writefile("$srcdir/$file", $content);
+
+ my $message="web commit from $ENV{REMOTE_ADDR}";
+ if (defined $q->param('comments')) {
+ $message.=": ".$q->param('comments');
+ }
+
+ if ($svn) {
+ if ($newfile) {
+ rcs_add($file);
+ }
+ # presumably the commit will trigger an update
+ # of the wiki
+ rcs_commit($message);
+ }
+ else {
+ refresh();