X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/dae0f48e91304afcb6ebe0936360e51b22a56548..2c784773879b228b7dfec2c6d092c9e1e98ab97b:/IkiWiki/Plugin/aggregate.pm?ds=inline

diff --git a/IkiWiki/Plugin/aggregate.pm b/IkiWiki/Plugin/aggregate.pm
index ac55dcb1d..ea27fc199 100644
--- a/IkiWiki/Plugin/aggregate.pm
+++ b/IkiWiki/Plugin/aggregate.pm
@@ -4,11 +4,12 @@ package IkiWiki::Plugin::aggregate;
 
 use warnings;
 use strict;
-use IkiWiki;
+use IkiWiki 2.00;
 use HTML::Entities;
 use HTML::Parser;
 use HTML::Tagset;
 use URI;
+use open qw{:utf8 :std};
 
 my %feeds;
 my %guids;
@@ -24,25 +25,35 @@ sub import { #{{{
 
 sub getopt () { #{{{
         eval q{use Getopt::Long};
+	error($@) if $@;
         Getopt::Long::Configure('pass_through');
         GetOptions("aggregate" => \$config{aggregate});
 } #}}}
 
 sub checkconfig () { #{{{
-	IkiWiki::lockwiki();
-	loadstate();
-	if ($config{aggregate}) {
+	if ($config{aggregate} && ! ($config{post_commit} && 
+	                             IkiWiki::commit_hook_enabled())) {
+		if (! IkiWiki::lockwiki(0)) {
+			debug("wiki is locked by another process, not aggregating");
+			exit 1;
+		}
+	
+		loadstate();
 		IkiWiki::loadindex();
 		aggregate();
+		expire();
 		savestate();
+		clearstate();
+
+		IkiWiki::unlockwiki();
 	}
-	IkiWiki::unlockwiki();
 } #}}}
 
 sub filter (@) { #{{{
 	my %params=@_;
 	my $page=$params{page};
 
+	loadstate(); # if not already loaded
 	# Mark all feeds originating on this page as removable;
 	# preprocess will unmark those that still exist.
 	remove_feeds($page);
@@ -55,7 +66,7 @@ sub preprocess (@) { #{{{
 
 	foreach my $required (qw{name url}) {
 		if (! exists $params{$required}) {
-			return "[[aggregate plugin missing $required parameter]]";
+			return "[[aggregate ".sprintf(gettext("missing %s parameter"), $required)."]]";
 		}
 	}
 
@@ -79,10 +90,12 @@ sub preprocess (@) { #{{{
 	$feed->{expireage}=defined $params{expireage} ? $params{expireage} : 0;
 	$feed->{expirecount}=defined $params{expirecount} ? $params{expirecount} : 0;
 	delete $feed->{remove};
+	delete $feed->{expired};
 	$feed->{lastupdate}=0 unless defined $feed->{lastupdate};
 	$feed->{numposts}=0 unless defined $feed->{numposts};
 	$feed->{newposts}=0 unless defined $feed->{newposts};
-	$feed->{message}="new feed" unless defined $feed->{message};
+	$feed->{message}=gettext("new feed") unless defined $feed->{message};
+	$feed->{error}=0 unless defined $feed->{error};
 	$feed->{tags}=[];
 	while (@_) {
 		my $key=shift;
@@ -93,8 +106,11 @@ sub preprocess (@) { #{{{
 	}
 
 	return "<a href=\"".$feed->{url}."\">".$feed->{name}."</a>: ".
-	       "<i>".$feed->{message}."</i> (".$feed->{numposts}." posts".
-	       ($feed->{newposts} ? "; ".$feed->{newposts}." new" : "").
+	       ($feed->{error} ? "<em>" : "").$feed->{message}.
+	       ($feed->{error} ? "</em>" : "").
+	       " (".$feed->{numposts}." ".gettext("posts").
+	       ($feed->{newposts} ? "; ".$feed->{newposts}.
+	                            " ".gettext("new") : "").
 	       ")";
 } # }}}
 
@@ -108,10 +124,12 @@ sub delete (@) { #{{{
 	}
 } #}}}
 
+my $state_loaded=0;
 sub loadstate () { #{{{
+	return if $state_loaded;
 	if (-e "$config{wikistatedir}/aggregate") {
-		open (IN, "$config{wikistatedir}/aggregate" ||
-			die "$config{wikistatedir}/aggregate: $!");
+		open(IN, "$config{wikistatedir}/aggregate") ||
+			die "$config{wikistatedir}/aggregate: $!";
 		while (<IN>) {
 			$_=IkiWiki::possibly_foolish_untaint($_);
 			chomp;
@@ -139,14 +157,19 @@ sub loadstate () { #{{{
 		}
 
 		close IN;
+		
+		$state_loaded=1;
 	}
 } #}}}
 
 sub savestate () { #{{{
 	eval q{use HTML::Entities};
-	die $@ if $@;
-	open (OUT, ">$config{wikistatedir}/aggregate" ||
-		die "$config{wikistatedir}/aggregate: $!");
+	error($@) if $@;
+	my $newfile="$config{wikistatedir}/aggregate.new";
+	# TODO: This cleanup function could use improvement. Any newly
+	# aggregated files are left behind unrecorded, and should be deleted.
+	my $cleanup = sub { unlink($newfile) };
+	open (OUT, ">$newfile") || error("open $newfile: $!", $cleanup);
 	foreach my $data (values %feeds, values %guids) {
 		if ($data->{remove}) {
 			if ($data->{name}) {
@@ -161,6 +184,11 @@ sub savestate () { #{{{
 			}
 			next;
 		}
+		elsif ($data->{expired} && exists $data->{page}) {
+			unlink pagefile($data->{page});
+			delete $data->{page};
+			delete $data->{md5};
+		}
 
 		my @line;
 		foreach my $field (keys %$data) {
@@ -175,43 +203,112 @@ sub savestate () { #{{{
 				push @line, "$field=".$data->{$field};
 			}
 		}
-		print OUT join(" ", @line)."\n";
+		print OUT join(" ", @line)."\n" || error("write $newfile: $!", $cleanup);
+	}
+	close OUT || error("save $newfile: $!", $cleanup);
+	rename($newfile, "$config{wikistatedir}/aggregate") ||
+		error("rename $newfile: $!", $cleanup);
+} #}}}
+
+sub clearstate () { #{{{
+	%feeds=();
+	%guids=();
+	$state_loaded=0;
+} #}}}
+
+sub expire () { #{{{
+	foreach my $feed (values %feeds) {
+		next unless $feed->{expireage} || $feed->{expirecount};
+		my $count=0;
+		my %seen;
+		foreach my $item (sort { $IkiWiki::pagectime{$b->{page}} <=> $IkiWiki::pagectime{$a->{page}} }
+		                  grep { exists $_->{page} && $_->{feed} eq $feed->{name} && $IkiWiki::pagectime{$_->{page}} }
+		                  values %guids) {
+			if ($feed->{expireage}) {
+				my $days_old = (time - $IkiWiki::pagectime{$item->{page}}) / 60 / 60 / 24;
+				if ($days_old > $feed->{expireage}) {
+					debug(sprintf(gettext("expiring %s (%s days old)"),
+						$item->{page}, $days_old));
+					$item->{expired}=1;
+				}
+			}
+			elsif ($feed->{expirecount} &&
+			       $count >= $feed->{expirecount}) {
+				debug(sprintf(gettext("expiring %s"), $item->{page}));
+				$item->{expired}=1;
+			}
+			else {
+				if (! $seen{$item->{page}}) {
+					$seen{$item->{page}}=1;
+					$count++;
+				}
+			}
+		}
 	}
-	close OUT;
 } #}}}
 
 sub aggregate () { #{{{
 	eval q{use XML::Feed};
-	die $@ if $@;
+	error($@) if $@;
+	eval q{use URI::Fetch};
+	error($@) if $@;
 	eval q{use HTML::Entities};
-	die $@ if $@;
+	error($@) if $@;
 
 	foreach my $feed (values %feeds) {
 		next unless $config{rebuild} || 
 			time - $feed->{lastupdate} >= $feed->{updateinterval};
 		$feed->{lastupdate}=time;
 		$feed->{newposts}=0;
+		$feed->{message}=sprintf(gettext("processed ok at %s"),
+			displaytime($feed->{lastupdate}));
+		$feed->{error}=0;
 		$IkiWiki::forcerebuild{$feed->{sourcepage}}=1;
 
-		debug("checking feed ".$feed->{name}." ...");
+		debug(sprintf(gettext("checking feed %s ..."), $feed->{name}));
 
 		if (! length $feed->{feedurl}) {
 			my @urls=XML::Feed->find_feeds($feed->{url});
 			if (! @urls) {
-				$feed->{message}="could not find feed at ".$feed->{feedurl};
+				$feed->{message}=sprintf(gettext("could not find feed at %s"), $feed->{url});
+				$feed->{error}=1;
 				debug($feed->{message});
 				next;
 			}
 			$feed->{feedurl}=pop @urls;
 		}
-		my $f=eval{XML::Feed->parse(URI->new($feed->{feedurl}))};
+		my $res=URI::Fetch->fetch($feed->{feedurl});
+		if (! $res) {
+			$feed->{message}=URI::Fetch->errstr;
+			$feed->{error}=1;
+			debug($feed->{message});
+			next;
+		}
+		if ($res->status == URI::Fetch::URI_GONE()) {
+			$feed->{message}=gettext("feed not found");
+			$feed->{error}=1;
+			debug($feed->{message});
+			next;
+		}
+		my $content=$res->content;
+		my $f=eval{XML::Feed->parse(\$content)};
+		if ($@) {
+			# One common cause of XML::Feed crashing is a feed
+			# that contains invalid UTF-8 sequences. Convert
+			# feed to ascii to try to work around.
+			$feed->{message}.=" ".sprintf(gettext("(invalid UTF-8 stripped from feed)"));
+			$content=Encode::decode_utf8($content);
+			$f=eval{XML::Feed->parse(\$content)};
+		}
 		if ($@) {
-			$feed->{message}="feed crashed XML::Feed! $@";
+			$feed->{message}=gettext("feed crashed XML::Feed!")." ($@)";
+			$feed->{error}=1;
 			debug($feed->{message});
 			next;
 		}
 		if (! $f) {
 			$feed->{message}=XML::Feed->errstr;
+			$feed->{error}=1;
 			debug($feed->{message});
 			next;
 		}
@@ -221,17 +318,12 @@ sub aggregate () { #{{{
 				feed => $feed,
 				title => defined $entry->title ? decode_entities($entry->title) : "untitled",
 				link => $entry->link,
-				content => $entry->content->body,
+				content => defined $entry->content->body ? $entry->content->body : "",
 				guid => defined $entry->id ? $entry->id : time."_".$feed->name,
 				ctime => $entry->issued ? ($entry->issued->epoch || time) : time,
 			);
 		}
-
-		$feed->{message}="processed ok at ".
-			displaytime($feed->{lastupdate});
 	}
-
-	# TODO: expiry
 } #}}}
 
 sub add_page (@) { #{{{
@@ -243,6 +335,7 @@ sub add_page (@) { #{{{
 	if (exists $guids{$params{guid}}) {
 		# updating an existing post
 		$guid=$guids{$params{guid}};
+		return if $guid->{expired};
 	}
 	else {
 		# new post
@@ -267,8 +360,21 @@ sub add_page (@) { #{{{
 		       -e pagefile($page.$c)) {
 			$c++
 		}
+
+		# Make sure that the file name isn't too long. 
+		# NB: This doesn't check for path length limits.
+		my $max=POSIX::pathconf($config{srcdir}, &POSIX::_PC_NAME_MAX);
+		if (defined $max && length(htmlfn($page)) >= $max) {
+			$c="";
+			$page=$feed->{dir}."/item";
+			while (exists $IkiWiki::pagecase{lc $page.$c} ||
+			       -e pagefile($page.$c)) {
+				$c++
+			}
+		}
+
 		$guid->{page}=$page;
-		debug("creating new page $page");
+		debug(sprintf(gettext("creating new page %s"), $page));
 	}
 	$guid->{feed}=$feed->{name};
 	
@@ -276,6 +382,7 @@ sub add_page (@) { #{{{
 	# to avoid unneccessary rebuilding. The mtime from rss cannot be
 	# trusted; let's use a digest.
 	eval q{use Digest::MD5 'md5_hex'};
+	error($@) if $@;
 	require Encode;
 	my $digest=md5_hex(Encode::encode_utf8($params{content}));
 	return unless ! exists $guid->{md5} || $guid->{md5} ne $digest || $config{rebuild};
@@ -293,7 +400,7 @@ sub add_page (@) { #{{{
 	if (ref $feed->{tags}) {
 		$template->param(tags => [map { tag => $_ }, @{$feed->{tags}}]);
 	}
-	writefile(htmlpage($guid->{page}), $config{srcdir},
+	writefile(htmlfn($guid->{page}), $config{srcdir},
 		$template->output);
 
 	# Set the mtime, this lets the build process get the right creation
@@ -368,7 +475,11 @@ sub remove_feeds () { #{{{
 sub pagefile ($) { #{{{
 	my $page=shift;
 
-	return "$config{srcdir}/".htmlpage($page);
+	return "$config{srcdir}/".htmlfn($page);
+} #}}}
+
+sub htmlfn ($) { #{{{
+	return shift().".".$config{htmlext};
 } #}}}
 
 1