Escape HTML in RSS feeds, rather than relying on it being valid to stuff into a CDATA...

[ikiwiki.git] / IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index c1d9119e840662f449d0cd257c0ca1c14df48653..3f8a4bca334debb8a5728b25b258dac50c112f89 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -77,7 +77,8 @@ sub defaultconfig () { #{{{
        adminuser => undef,
        adminemail => undef,
        plugin => [qw{mdwn link inline htmlscrubber passwordauth openid
-                       signinedit lockedit conditional recentchanges}],
+                       signinedit lockedit conditional recentchanges
+                       parentlinks}],
        libdir => undef,
        timeformat => '%c',
        locale => undef,
@@ -189,11 +190,6 @@ sub loadplugin ($) { #{{{
 sub error ($;$) { #{{{
        my $message=shift;
        my $cleaner=shift;
-       if ($config{cgi}) {
-               print "Content-type: text/html\n\n";
-               print misctemplate(gettext("Error"),
-                       "<p>".gettext("Error").": $message</p>");
-       }
        log_message('err' => $message) if $config{syslog};
        if (defined $cleaner) {
                $cleaner->();
@@ -337,7 +333,7 @@ sub readfile ($;$$) { #{{{
        return $ret;
 } #}}}
 
-sub prep_writefile ($$) {
+sub prep_writefile ($$) { #{{{
        my $file=shift;
        my $destdir=shift;
        
@@ -361,7 +357,7 @@ sub prep_writefile ($$) {
        }
 
        return 1;
-}
+} #}}}
 
 sub writefile ($$$;$$) { #{{{
        my $file=shift; # can include subdirs
@@ -542,17 +538,18 @@ sub beautify_urlpath ($) { #{{{
 
        # Ensure url is not an empty link, and
        # if it's relative, make that explicit to avoid colon confusion.
-       if ($url !~ /\//) {
+       if ($url !~ /^\//) {
                $url="./$url";
        }
 
        return $url;
 } #}}}
 
-sub urlto ($$) { #{{{
+sub urlto ($$;$) { #{{{
        my $to=shift;
        my $from=shift;
-
+       my $absolute=shift;
+       
        if (! length $to) {
                return beautify_urlpath(baseurl($from)."index.$config{htmlext}");
        }
@@ -561,6 +558,10 @@ sub urlto ($$) { #{{{
                $to=htmlpage($to);
        }
 
+       if ($absolute) {
+               return $config{url}.beautify_urlpath("/".$to);
+       }
+
        my $link = abs2rel($to, dirname(htmlpage($from)));
 
        return beautify_urlpath($link);
@@ -763,31 +764,37 @@ sub preprocess ($$$;$$) { #{{{
                        if ($preprocessing{$page}++ > 3) {
                                # Avoid loops of preprocessed pages preprocessing
                                # other pages that preprocess them, etc.
-                               #translators: The first parameter is a
-                               #translators: preprocessor directive name,
-                               #translators: the second a page name, the
-                               #translators: third a number.
-                               return "[[".sprintf(gettext("%s preprocessing loop detected on %s at depth %i"),
-                                       $command, $page, $preprocessing{$page}).
-                               "]]";
+                               return "[[!$command <span class=\"error\">".
+                                       sprintf(gettext("preprocessing loop detected on %s at depth %i"),
+                                               $page, $preprocessing{$page}).
+                                       "</span>]]";
                        }
                        my $ret;
                        if (! $scan) {
-                               $ret=$hooks{preprocess}{$command}{call}->(
-                                       @params,
-                                       page => $page,
-                                       destpage => $destpage,
-                                       preview => $preprocess_preview,
-                               );
+                               $ret=eval {
+                                       $hooks{preprocess}{$command}{call}->(
+                                               @params,
+                                               page => $page,
+                                               destpage => $destpage,
+                                               preview => $preprocess_preview,
+                                       );
+                               };
+                               if ($@) {
+                                       chomp $@;
+                                       $ret="[[!$command <span class=\"error\">".
+                                               gettext("Error").": $@"."</span>]]";
+                               }
                        }
                        else {
                                # use void context during scan pass
-                               $hooks{preprocess}{$command}{call}->(
-                                       @params,
-                                       page => $page,
-                                       destpage => $destpage,
-                                       preview => $preprocess_preview,
-                               );
+                               eval {
+                                       $hooks{preprocess}{$command}{call}->(
+                                               @params,
+                                               page => $page,
+                                               destpage => $destpage,
+                                               preview => $preprocess_preview,
+                                       );
+                               };
                                $ret="";
                        }
                        $preprocessing{$page}--;
@@ -821,7 +828,8 @@ sub preprocess ($$$;$$) { #{{{
                        *)?             # 0 or more parameters
                        \]\]            # directive closed
                }sx;
-       } else {
+       }
+       else {
                $regex = qr{
                        (\\?)           # 1: escape?
                        \[\[(!?)        # directive open; 2: optional prefix
@@ -1202,6 +1210,12 @@ sub gettext { #{{{
        }
 } #}}}
 
+sub yesno ($) { #{{{
+       my $val=shift;
+
+       return (defined $val && lc($val) eq gettext("yes"));
+} #}}}
+
 sub pagespec_merge ($$) { #{{{
        my $a=shift;
        my $b=shift;