]> git.vanrenterghem.biz Git - git.ikiwiki.info.git/blobdiff - IkiWiki/Render.pm
* Add support for links of the form [../foo]], this links to the page
[git.ikiwiki.info.git] / IkiWiki / Render.pm
index 9ece00157acd0d8c9a8146090648ad68dc0f4c76..4033468b23a7917aadc01c0fd9fc9fed416c4573 100644 (file)
@@ -4,99 +4,46 @@ package IkiWiki;
 
 use warnings;
 use strict;
-use File::Spec;
-
-sub linkify ($$) { #{{{
-       my $content=shift;
-       my $page=shift;
-
-       $content =~ s{(\\?)$config{wiki_link_regexp}}{
-               $2 ? ( $1 ? "[[$2|$3]]" : htmllink($page, titlepage($3), 0, 0, pagetitle($2)))
-                  : ( $1 ? "[[$3]]" :    htmllink($page, titlepage($3)))
-       }eg;
-       
-       return $content;
-} #}}}
-
-my $_scrubber;
-sub scrubber { #{{{
-       return $_scrubber if defined $_scrubber;
-       
-       eval q{use HTML::Scrubber};
-       # Lists based on http://feedparser.org/docs/html-sanitization.html
-       $_scrubber = HTML::Scrubber->new(
-               allow => [qw{
-                       a abbr acronym address area b big blockquote br
-                       button caption center cite code col colgroup dd del
-                       dfn dir div dl dt em fieldset font form h1 h2 h3 h4
-                       h5 h6 hr i img input ins kbd label legend li map
-                       menu ol optgroup option p pre q s samp select small
-                       span strike strong sub sup table tbody td textarea
-                       tfoot th thead tr tt u ul var
-               }],
-               default => [undef, { map { $_ => 1 } qw{
-                       abbr accept accept-charset accesskey action
-                       align alt axis border cellpadding cellspacing
-                       char charoff charset checked cite class
-                       clear cols colspan color compact coords
-                       datetime dir disabled enctype for frame
-                       headers height href hreflang hspace id ismap
-                       label lang longdesc maxlength media method
-                       multiple name nohref noshade nowrap prompt
-                       readonly rel rev rows rowspan rules scope
-                       selected shape size span src start summary
-                       tabindex target title type usemap valign
-                       value vspace width
-               }}],
-       );
-       return $_scrubber;
-} # }}}
-
-sub htmlize ($$) { #{{{
-       my $type=shift;
-       my $content=shift;
-       
-       if (! $INC{"/usr/bin/markdown"}) {
-               no warnings 'once';
-               $blosxom::version="is a proper perl module too much to ask?";
-               use warnings 'all';
-               do "/usr/bin/markdown";
-       }
-       
-       if ($type eq '.mdwn') {
-               $content=Markdown::Markdown($content);
-       }
-       else {
-               error("htmlization of $type not supported");
-       }
-
-       if ($config{sanitize}) {
-               $content=scrubber()->scrub($content);
+use IkiWiki;
+use Encode;
+
+my %backlinks;
+my $backlinks_calculated=0;
+
+sub calculate_backlinks () { #{{{
+       return if $backlinks_calculated;
+       %backlinks=();
+       foreach my $page (keys %links) {
+               foreach my $link (@{$links{$page}}) {
+                       my $bestlink=bestlink($page, $link);
+                       if (length $bestlink && $bestlink ne $page) {
+                               $backlinks{$bestlink}{$page}=1;
+                       }
+               }
        }
-       
-       return $content;
+       $backlinks_calculated=1;
 } #}}}
 
 sub backlinks ($) { #{{{
        my $page=shift;
 
+       calculate_backlinks();
+
        my @links;
-       foreach my $p (keys %links) {
-               next if bestlink($page, $p) eq $page;
-               if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
-                       my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
+       return unless $backlinks{$page};
+       foreach my $p (keys %{$backlinks{$page}}) {
+               my $href=abs2rel(htmlpage($p), dirname($page));
                        
-                       # Trim common dir prefixes from both pages.
-                       my $p_trimmed=$p;
-                       my $page_trimmed=$page;
-                       my $dir;
-                       1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
-                               defined $dir &&
-                               $p_trimmed=~s/^\Q$dir\E// &&
-                               $page_trimmed=~s/^\Q$dir\E//;
-                                      
-                       push @links, { url => $href, page => $p_trimmed };
-               }
+               # Trim common dir prefixes from both pages.
+               my $p_trimmed=$p;
+               my $page_trimmed=$page;
+               my $dir;
+               1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
+                       defined $dir &&
+                       $p_trimmed=~s/^\Q$dir\E// &&
+                       $page_trimmed=~s/^\Q$dir\E//;
+                              
+               push @links, { url => $href, page => pagetitle($p_trimmed) };
        }
 
        return sort { $a->{page} cmp $b->{page} } @links;
@@ -109,10 +56,11 @@ sub parentlinks ($) { #{{{
        my $pagelink="";
        my $path="";
        my $skip=1;
+       return if $page eq 'index'; # toplevel
        foreach my $dir (reverse split("/", $page)) {
                if (! $skip) {
                        $path.="../";
-                       unshift @ret, { url => "$path$dir.html", page => $dir };
+                       unshift @ret, { url => $path.htmlpage($dir), page => pagetitle($dir) };
                }
                else {
                        $skip=0;
@@ -122,98 +70,64 @@ sub parentlinks ($) { #{{{
        return @ret;
 } #}}}
 
-sub preprocess ($$) { #{{{
-       my $page=shift;
-       my $content=shift;
-
-       my $handle=sub {
-               my $escape=shift;
-               my $command=shift;
-               my $params=shift;
-               if (length $escape) {
-                       return "[[$command $params]]";
-               }
-               elsif (exists $plugins{preprocess}{$command}) {
-                       my %params;
-                       while ($params =~ /(\w+)=\"([^"]+)"(\s+|$)/g) {
-                               $params{$1}=$2;
-                       }
-                       return $plugins{preprocess}{$command}->(page => $page, %params);
-               }
-               else {
-                       return "[[$command not processed]]";
-               }
-       };
-       
-       $content =~ s{(\\?)$config{wiki_processor_regexp}}{$handle->($1, $2, $3)}eg;
-       return $content;
-} #}}}
-
-sub add_depends ($$) { #{{{
-       my $page=shift;
-       my $globlist=shift;
-       
-       if (! exists $depends{$page}) {
-               $depends{$page}=$globlist;
-       }
-       else {
-               $depends{$page}.=" ".$globlist;
-       }
-} # }}}
-
 sub genpage ($$$) { #{{{
-       my $content=shift;
        my $page=shift;
+       my $content=shift;
        my $mtime=shift;
 
-       my $title=pagetitle(basename($page));
-       
-       my $template=HTML::Template->new(blind_cache => 1,
-               filename => "$config{templatedir}/page.tmpl");
-       
+       my $template=template("page.tmpl", blind_cache => 1);
+       my $actions=0;
+
        if (length $config{cgiurl}) {
                $template->param(editurl => cgiurl(do => "edit", page => $page));
                $template->param(prefsurl => cgiurl(do => "prefs"));
                if ($config{rcs}) {
                        $template->param(recentchangesurl => cgiurl(do => "recentchanges"));
                }
+               $actions++;
        }
 
        if (length $config{historyurl}) {
                my $u=$config{historyurl};
                $u=~s/\[\[file\]\]/$pagesources{$page}/g;
                $template->param(historyurl => $u);
+               $actions++;
+       }
+       if ($config{discussion}) {
+               $template->param(discussionlink => htmllink($page, $page, "Discussion", 1, 1));
+               $actions++;
        }
-       if ($config{hyperestraier}) {
-               $template->param(hyperestraierurl => cgiurl());
+
+       if ($actions) {
+               $template->param(have_actions => 1);
        }
 
        $template->param(
-               title => $title,
+               title => $page eq 'index' 
+                       ? $config{wikiname} 
+                       : pagetitle(basename($page)),
                wikiname => $config{wikiname},
                parentlinks => [parentlinks($page)],
                content => $content,
                backlinks => [backlinks($page)],
-               discussionlink => htmllink($page, "Discussion", 1, 1),
-               mtime => scalar(gmtime($mtime)),
-               styleurl => styleurl($page),
+               mtime => displaytime($mtime),
+               baseurl => baseurl($page),
        );
-       
-       return $template->output;
-} #}}}
 
-sub check_overwrite ($$) { #{{{
-       # Important security check. Make sure to call this before saving
-       # any files to the source directory.
-       my $dest=shift;
-       my $src=shift;
+       run_hooks(pagetemplate => sub {
+               shift->(page => $page, destpage => $page, template => $template);
+       });
        
-       if (! exists $renderedfiles{$src} && -e $dest && ! $config{rebuild}) {
-               error("$dest already exists and was rendered from ".
-                       join(" ",(grep { $renderedfiles{$_} eq $dest } keys
-                               %renderedfiles)).
-                       ", before, so not rendering from $src");
-       }
+       $content=$template->output;
+
+       run_hooks(format => sub {
+               $content=shift->(
+                       page => $page,
+                       content => $content,
+               );
+       });
+
+       return $content;
 } #}}}
 
 sub mtime ($) { #{{{
@@ -222,17 +136,37 @@ sub mtime ($) { #{{{
        return (stat($file))[9];
 } #}}}
 
-sub findlinks ($$) { #{{{
-       my $content=shift;
-       my $page=shift;
+sub scan ($) { #{{{
+       my $file=shift;
 
-       my @links;
-       while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
-               push @links, titlepage($2);
+       my $type=pagetype($file);
+       if (defined $type) {
+               my $srcfile=srcfile($file);
+               my $content=readfile($srcfile);
+               my $page=pagename($file);
+               will_render($page, htmlpage($page), 1);
+
+               # Always needs to be done, since filters might add links
+               # to the content.
+               $content=filter($page, $content);
+
+               my @links;
+               while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
+                       push @links, titlepage($2);
+               }
+               if ($config{discussion}) {
+                       # Discussion links are a special case since they're
+                       # not in the text of the page, but on its template.
+                       push @links, "$page/discussion";
+               }
+               $links{$page}=\@links;
+               
+               # Preprocess in scan-only mode.
+               preprocess($page, $page, $content, 1);
+       }
+       else {
+               will_render($file, $file, 1);
        }
-       # Discussion links are a special case since they're not in the text
-       # of the page, but on its template.
-       return @links, "$page/discussion";
 } #}}}
 
 sub render ($) { #{{{
@@ -240,31 +174,27 @@ sub render ($) { #{{{
        
        my $type=pagetype($file);
        my $srcfile=srcfile($file);
-       if ($type ne 'unknown') {
+       if (defined $type) {
                my $content=readfile($srcfile);
                my $page=pagename($file);
-               
-               $links{$page}=[findlinks($content, $page)];
                delete $depends{$page};
+               will_render($page, htmlpage($page), 1);
                
-               $content=linkify($content, $page);
-               $content=preprocess($page, $content);
-               $content=htmlize($type, $content);
+               $content=filter($page, $content);
+               $content=preprocess($page, $page, $content);
+               $content=linkify($page, $page, $content);
+               $content=htmlize($page, $type, $content);
                
-               check_overwrite("$config{destdir}/".htmlpage($page), $page);
                writefile(htmlpage($page), $config{destdir},
-                       genpage($content, $page, mtime($srcfile)));
+                       genpage($page, $content, mtime($srcfile)));
                $oldpagemtime{$page}=time;
-               $renderedfiles{$page}=htmlpage($page);
        }
        else {
                my $content=readfile($srcfile, 1);
-               $links{$file}=[];
                delete $depends{$file};
-               check_overwrite("$config{destdir}/$file", $file);
+               will_render($file, $file, 1);
                writefile($file, $config{destdir}, $content, 1);
                $oldpagemtime{$file}=time;
-               $renderedfiles{$file}=$file;
        }
 } #}}}
 
@@ -278,66 +208,17 @@ sub prune ($) { #{{{
        }
 } #}}}
 
-sub estcfg () { #{{{
-       my $estdir="$config{wikistatedir}/hyperestraier";
-       my $cgi=basename($config{cgiurl});
-       $cgi=~s/\..*$//;
-       open(TEMPLATE, ">$estdir/$cgi.tmpl") ||
-               error("write $estdir/$cgi.tmpl: $!");
-       print TEMPLATE misctemplate("search", 
-               "<!--ESTFORM-->\n\n<!--ESTRESULT-->\n\n<!--ESTINFO-->\n\n");
-       close TEMPLATE;
-       open(TEMPLATE, ">$estdir/$cgi.conf") ||
-               error("write $estdir/$cgi.conf: $!");
-       my $template=HTML::Template->new(
-               filename => "$config{templatedir}/estseek.conf"
-       );
-       eval q{use Cwd 'abs_path'};
-       $template->param(
-               index => $estdir,
-               tmplfile => "$estdir/$cgi.tmpl",
-               destdir => abs_path($config{destdir}),
-               url => $config{url},
-       );
-       print TEMPLATE $template->output;
-       close TEMPLATE;
-       $cgi="$estdir/".basename($config{cgiurl});
-       unlink($cgi);
-       symlink("/usr/lib/estraier/estseek.cgi", $cgi) ||
-               error("symlink $cgi: $!");
-} # }}}
-
-sub estcmd ($;@) { #{{{
-       my @params=split(' ', shift);
-       push @params, "-cl", "$config{wikistatedir}/hyperestraier";
-       if (@_) {
-               push @params, "-";
-       }
-       
-       my $pid=open(CHILD, "|-");
-       if ($pid) {
-               # parent
-               foreach (@_) {
-                       print CHILD "$_\n";
-               }
-               close(CHILD) || error("estcmd @params exited nonzero: $?");
-       }
-       else {
-               # child
-               open(STDOUT, "/dev/null"); # shut it up (closing won't work)
-               exec("estcmd", @params) || error("can't run estcmd");
-       }
-} #}}}
-
 sub refresh () { #{{{
        # find existing pages
        my %exists;
        my @files;
        eval q{use File::Find};
+       error($@) if $@;
        find({
                no_chdir => 1,
                wanted => sub {
-                       if (/$config{wiki_file_prune_regexp}/) {
+                       $_=decode_utf8($_);
+                       if (file_pruned($_, $config{srcdir})) {
                                $File::Find::prune=1;
                        }
                        elsif (! -d $_ && ! -l $_) {
@@ -356,7 +237,8 @@ sub refresh () { #{{{
        find({
                no_chdir => 1,
                wanted => sub {
-                       if (/$config{wiki_file_prune_regexp}/) {
+                       $_=decode_utf8($_);
+                       if (file_pruned($_, $config{underlaydir})) {
                                $File::Find::prune=1;
                        }
                        elsif (! -d $_ && ! -l $_) {
@@ -385,12 +267,15 @@ sub refresh () { #{{{
        foreach my $file (@files) {
                my $page=pagename($file);
                if (! $oldpagemtime{$page}) {
-                       debug("new page $page") unless exists $pagectime{$page};
                        push @add, $file;
-                       $links{$page}=[];
+                       $pagecase{lc $page}=$page;
                        $pagesources{$page}=$file;
-                       $pagectime{$page}=mtime(srcfile($file))
-                               unless exists $pagectime{$page};
+                       if ($config{getctime} && -e "$config{srcdir}/$file") {
+                               $pagectime{$page}=rcs_getctime("$config{srcdir}/$file");
+                       }
+                       elsif (! exists $pagectime{$page}) {
+                               $pagectime{$page}=mtime(srcfile($file));
+                       }
                }
        }
        my @del;
@@ -398,60 +283,61 @@ sub refresh () { #{{{
                if (! $exists{$page}) {
                        debug("removing old page $page");
                        push @del, $pagesources{$page};
-                       prune($config{destdir}."/".$renderedfiles{$page});
-                       delete $renderedfiles{$page};
+                       $links{$page}=[];
+                       $renderedfiles{$page}=[];
                        $oldpagemtime{$page}=0;
+                       prune($config{destdir}."/".$_)
+                               foreach @{$oldrenderedfiles{$page}};
                        delete $pagesources{$page};
                }
        }
-       
-       # render any updated files
+
+       # scan changed and new files
+       my @changed;
        foreach my $file (@files) {
                my $page=pagename($file);
                
                if (! exists $oldpagemtime{$page} ||
-                   mtime(srcfile($file)) > $oldpagemtime{$page}) {
-                       debug("rendering changed file $file");
-                       render($file);
-                       $rendered{$file}=1;
+                   mtime(srcfile($file)) > $oldpagemtime{$page} ||
+                   $forcerebuild{$page}) {
+                       debug("scanning $file");
+                       push @changed, $file;
+                       scan($file);
                }
        }
+       calculate_backlinks();
+
+       # render changed and new pages
+       foreach my $file (@changed) {
+               debug("rendering $file");
+               render($file);
+               $rendered{$file}=1;
+       }
        
-       # if any files were added or removed, check to see if each page
-       # needs an update due to linking to them or inlining them.
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the bestlink may have changed and we won't know until
-       # now
+       # rebuild pages that link to added or removed pages
        if (@add || @del) {
-FILE:          foreach my $file (@files) {
-                       my $page=pagename($file);
-                       foreach my $f (@add, @del) {
-                               my $p=pagename($f);
-                               foreach my $link (@{$links{$page}}) {
-                                       if (bestlink($page, $link) eq $p) {
-                                               debug("rendering $file, which links to $p");
-                                               render($file);
-                                               $rendered{$file}=1;
-                                               next FILE;
-                                       }
-                               }
+               foreach my $f (@add, @del) {
+                       my $p=pagename($f);
+                       foreach my $page (keys %{$backlinks{$p}}) {
+                               my $file=$pagesources{$page};
+                               next if $rendered{$file};
+                               debug("rendering $file, which links to $p");
+                               render($file);
+                               $rendered{$file}=1;
                        }
                }
        }
 
-       # Handle backlinks; if a page has added/removed links, update the
-       # pages it links to. Also handles rebuilding dependat pages.
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the backlinks could be wrong in the first pass render
-       # above
        if (%rendered || @del) {
+               # rebuild dependant pages
                foreach my $f (@files) {
+                       next if $rendered{$f};
                        my $p=pagename($f);
                        if (exists $depends{$p}) {
                                foreach my $file (keys %rendered, @del) {
                                        next if $f eq $file;
                                        my $page=pagename($file);
-                                       if (globlist_match($page, $depends{$p})) {
+                                       if (pagespec_match($page, $depends{$p})) {
                                                debug("rendering $f, which depends on $page");
                                                render($f);
                                                $rendered{$f}=1;
@@ -461,6 +347,8 @@ FILE:               foreach my $file (@files) {
                        }
                }
                
+               # handle backlinks; if a page has added/removed links,
+               # update the pages it links to
                my %linkchanged;
                foreach my $file (keys %rendered, @del) {
                        my $page=pagename($file);
@@ -487,6 +375,7 @@ FILE:               foreach my $file (@files) {
                foreach my $link (keys %linkchanged) {
                        my $linkfile=$pagesources{$link};
                        if (defined $linkfile) {
+                               next if $rendered{$linkfile};
                                debug("rendering $linkfile, to update its backlinks");
                                render($linkfile);
                                $rendered{$linkfile}=1;
@@ -494,20 +383,48 @@ FILE:             foreach my $file (@files) {
                }
        }
 
-       if ($config{hyperestraier} && (%rendered || @del)) {
-               debug("updating hyperestraier search index");
-               if (%rendered) {
-                       estcmd("gather -cm -bc -cl -sd", 
-                               map { $config{destdir}."/".$renderedfiles{pagename($_)} }
-                               keys %rendered);
-               }
-               if (@del) {
-                       estcmd("purge -cl");
+       # remove no longer rendered files
+       foreach my $src (keys %rendered) {
+               my $page=pagename($src);
+               foreach my $file (@{$oldrenderedfiles{$page}}) {
+                       if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
+                               debug("removing $file, no longer rendered by $page");
+                               prune($config{destdir}."/".$file);
+                       }
                }
-               
-               debug("generating hyperestraier cgi config");
-               estcfg();
        }
+
+       if (@del) {
+               run_hooks(delete => sub { shift->(@del) });
+       }
+       if (%rendered) {
+               run_hooks(change => sub { shift->(keys %rendered) });
+       }
+} #}}}
+
+sub commandline_render () { #{{{
+       loadplugins();
+       checkconfig();
+       lockwiki();
+       loadindex();
+       unlockwiki();
+
+       my $srcfile=possibly_foolish_untaint($config{render});
+       my $file=$srcfile;
+       $file=~s/\Q$config{srcdir}\E\/?//;
+
+       my $type=pagetype($file);
+       die "ikiwiki: cannot render $srcfile\n" unless defined $type;
+       my $content=readfile($srcfile);
+       my $page=pagename($file);
+       $pagesources{$page}=$file;
+       $content=filter($page, $content);
+       $content=preprocess($page, $page, $content);
+       $content=linkify($page, $page, $content);
+       $content=htmlize($page, $type, $content);
+
+       print genpage($page, $content, mtime($srcfile));
+       exit 0;
 } #}}}
 
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