inline: Support feedfile option to change the filename of the feed generated.
[ikiwiki.git] / IkiWiki / Plugin / inline.pm
index 5e4df95f4dc851653d28f64124678953c4905340..17cc46e0e7c63cd24da4c48806f214ecddd506c5 100644 (file)
@@ -26,8 +26,7 @@ sub import { #{{{
        # Hook to change to do pinging since it's called late.
        # This ensures each page only pings once and prevents slow
        # pings interrupting page builds.
-       hook(type => "change", id => "inline", 
-               call => \&IkiWiki::pingurl);
+       hook(type => "change", id => "inline", call => \&IkiWiki::pingurl);
 } # }}}
 
 sub getopt () { #{{{
@@ -238,28 +237,46 @@ sub preprocess_inline (@) { #{{{
                @feedlist=grep { pagespec_match($_, $params{feedpages}, location => $params{page}) } @feedlist;
        }
 
-       my $feednum="";
-
-       my $feedid=join("\0", map { $_."\0".$params{$_} } sort keys %params);
-       if (exists $knownfeeds{$feedid}) {
-               $feednum=$knownfeeds{$feedid};
-       }
-       else {
-               if (exists $page_numfeeds{$params{destpage}}) {
-                       if ($feeds) {
-                               $feednum=$knownfeeds{$feedid}=++$page_numfeeds{$params{destpage}};
+       my ($feedbase, $feednum);
+       if ($feeds) {
+               # Ensure that multiple feeds on a page go to unique files.
+               
+               # Feedfile can lead to conflicts if usedirs is not enabled,
+               # so avoid supporting it in that case.
+               delete $params{feedfile} if ! $config{usedirs};
+               # Tight limits on legal feedfiles, to avoid security issues
+               # and conflicts.
+               if (defined $params{feedfile}) {
+                       if ($params{feedfile} =~ /\// ||
+                           $params{feedfile} !~ /$config{wiki_file_regexp}/) {
+                               error("illegal feedfile");
                        }
+                       $params{feedfile}=possibly_foolish_untaint($params{feedfile});
+               }
+               $feedbase=targetpage($params{destpage}, "", $params{feedfile});
+
+               my $feedid=join("\0", $feedbase, map { $_."\0".$params{$_} } sort keys %params);
+               if (exists $knownfeeds{$feedid}) {
+                       $feednum=$knownfeeds{$feedid};
                }
                else {
-                       $feednum=$knownfeeds{$feedid}="";
-                       if ($feeds) {
-                               $page_numfeeds{$params{destpage}}=1;
+                       if (exists $page_numfeeds{$params{destpage}}{$feedbase}) {
+                               if ($feeds) {
+                                       $feednum=$knownfeeds{$feedid}=++$page_numfeeds{$params{destpage}}{$feedbase};
+                               }
+                       }
+                       else {
+                               $feednum=$knownfeeds{$feedid}="";
+                               if ($feeds) {
+                                       $page_numfeeds{$params{destpage}}{$feedbase}=1;
+                               }
                        }
                }
        }
 
-       my $rssurl=basename(rsspage($params{destpage}).$feednum) if $feeds && $rss;
-       my $atomurl=basename(atompage($params{destpage}).$feednum) if $feeds && $atom;
+       my $rssurl=basename($feedbase."rss".$feednum) if $feeds && $rss;
+       my $atomurl=basename($feedbase."atom".$feednum) if $feeds && $atom;
+
        my $ret="";
 
        if (length $config{cgiurl} && ! $params{preview} && (exists $params{rootpage} ||
@@ -375,7 +392,7 @@ sub preprocess_inline (@) { #{{{
        
        if ($feeds && ! (! $emptyfeeds && ! @feedlist)) {
                if ($rss) {
-                       my $rssp=rsspage($params{destpage}).$feednum;
+                       my $rssp=$feedbase."rss".$feednum;
                        will_render($params{destpage}, $rssp);
                        if (! $params{preview}) {
                                writefile($rssp, $config{destdir},
@@ -386,7 +403,7 @@ sub preprocess_inline (@) { #{{{
                        }
                }
                if ($atom) {
-                       my $atomp=atompage($params{destpage}).$feednum;
+                       my $atomp=$feedbase."atom".$feednum;
                        will_render($params{destpage}, $atomp);
                        if (! $params{preview}) {
                                writefile($atomp, $config{destdir},
@@ -475,14 +492,6 @@ sub absolute_urls ($$) { #{{{
        return $content;
 } #}}}
 
-sub rsspage ($) { #{{{
-       return targetpage(shift, "rss");
-} #}}}
-
-sub atompage ($) { #{{{
-       return targetpage(shift, "atom");
-} #}}}
-
 sub genfeed ($$$$$@) { #{{{
        my $feedtype=shift;
        my $feedurl=shift;