#!/usr/bin/perl
-# Blog aggregation plugin.
+# Feed aggregation plugin.
package IkiWiki::Plugin::aggregate;
use warnings;
use strict;
-use IkiWiki 2.00;
-use HTML::Entities;
+use IkiWiki 3.00;
use HTML::Parser;
use HTML::Tagset;
+use HTML::Entities;
use URI;
use open qw{:utf8 :std};
my %feeds;
my %guids;
-sub import { #{{{
+sub import {
hook(type => "getopt", id => "aggregate", call => \&getopt);
+ hook(type => "getsetup", id => "aggregate", call => \&getsetup);
hook(type => "checkconfig", id => "aggregate", call => \&checkconfig);
hook(type => "needsbuild", id => "aggregate", call => \&needsbuild);
hook(type => "preprocess", id => "aggregate", call => \&preprocess);
hook(type => "delete", id => "aggregate", call => \&delete);
hook(type => "savestate", id => "aggregate", call => \&savestate);
-} # }}}
+ hook(type => "htmlize", id => "_aggregated", call => \&htmlize);
+ if (exists $config{aggregate_webtrigger} && $config{aggregate_webtrigger}) {
+ hook(type => "cgi", id => "aggregate", call => \&cgi);
+ }
+}
-sub getopt () { #{{{
+sub getopt () {
eval q{use Getopt::Long};
error($@) if $@;
Getopt::Long::Configure('pass_through');
- GetOptions("aggregate" => \$config{aggregate});
-} #}}}
+ GetOptions(
+ "aggregate" => \$config{aggregate},
+ "aggregateinternal!" => \$config{aggregateinternal},
+ );
+}
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ },
+ aggregateinternal => {
+ type => "boolean",
+ example => 1,
+ description => "enable aggregation to internal pages?",
+ safe => 0, # enabling needs manual transition
+ rebuild => 0,
+ },
+ aggregate_webtrigger => {
+ type => "boolean",
+ example => 0,
+ description => "allow aggregation to be triggered via the web?",
+ safe => 1,
+ rebuild => 0,
+ },
+}
+
+sub checkconfig () {
+ if (! defined $config{aggregateinternal}) {
+ $config{aggregateinternal}=1;
+ }
-sub checkconfig () { #{{{
if ($config{aggregate} && ! ($config{post_commit} &&
IkiWiki::commit_hook_enabled())) {
- # See if any feeds need aggregation.
- loadstate();
- my @feeds=needsaggregate();
- return unless @feeds;
- if (! lockaggregate()) {
- debug("an aggregation process is already running");
- return;
- }
- # force a later rebuild of source pages
- $IkiWiki::forcerebuild{$_->{sourcepage}}=1
- foreach @feeds;
-
- # Fork a child process to handle the aggregation.
- # The parent process will then handle building the
- # result. This avoids messy code to clear state
- # accumulated while aggregating.
- defined(my $pid = fork) or error("Can't fork: $!");
- if (! $pid) {
+ launchaggregation();
+ }
+}
+
+sub cgi ($) {
+ my $cgi=shift;
+
+ if (defined $cgi->param('do') &&
+ $cgi->param("do") eq "aggregate_webtrigger") {
+ $|=1;
+ print "Content-Type: text/plain\n\n";
+ $config{cgi}=0;
+ $config{verbose}=1;
+ $config{syslog}=0;
+ print gettext("Aggregation triggered via web.")."\n\n";
+ if (launchaggregation()) {
+ IkiWiki::lockwiki();
IkiWiki::loadindex();
+ require IkiWiki::Render;
+ IkiWiki::refresh();
+ IkiWiki::saveindex();
+ }
+ else {
+ print gettext("Nothing to do right now, all feeds are up-to-date!")."\n";
+ }
+ exit 0;
+ }
+}
- # Aggregation happens without the main wiki lock
- # being held. This allows editing pages etc while
- # aggregation is running.
- aggregate(@feeds);
+sub launchaggregation () {
+ # See if any feeds need aggregation.
+ loadstate();
+ my @feeds=needsaggregate();
+ return unless @feeds;
+ if (! lockaggregate()) {
+ debug("an aggregation process is already running");
+ return;
+ }
+ # force a later rebuild of source pages
+ $IkiWiki::forcerebuild{$_->{sourcepage}}=1
+ foreach @feeds;
+
+ # Fork a child process to handle the aggregation.
+ # The parent process will then handle building the
+ # result. This avoids messy code to clear state
+ # accumulated while aggregating.
+ defined(my $pid = fork) or error("Can't fork: $!");
+ if (! $pid) {
+ IkiWiki::loadindex();
+ # Aggregation happens without the main wiki lock
+ # being held. This allows editing pages etc while
+ # aggregation is running.
+ aggregate(@feeds);
+
+ IkiWiki::lockwiki;
+ # Merge changes, since aggregation state may have
+ # changed on disk while the aggregation was happening.
+ mergestate();
+ expire();
+ savestate();
+ IkiWiki::unlockwiki;
+ exit 0;
+ }
+ waitpid($pid,0);
+ if ($?) {
+ error "aggregation failed with code $?";
+ }
- IkiWiki::lockwiki;
- # Merge changes, since aggregation state may have
- # changed on disk while the aggregation was happening.
- mergestate();
- expire();
- savestate();
- IkiWiki::unlockwiki;
- exit 0;
+ clearstate();
+ unlockaggregate();
+
+ return 1;
+}
+
+# Pages with extension _aggregated have plain html markup, pass through.
+sub htmlize (@) {
+ my %params=@_;
+ return $params{content};
+}
+
+# Used by ikiwiki-transition aggregateinternal.
+sub migrate_to_internal {
+ if (! lockaggregate()) {
+ error("an aggregation process is currently running");
+ }
+
+ IkiWiki::lockwiki();
+ loadstate();
+ $config{verbose}=1;
+
+ foreach my $data (values %guids) {
+ next unless $data->{page};
+ next if $data->{expired};
+
+ $config{aggregateinternal} = 0;
+ my $oldname = "$config{srcdir}/".htmlfn($data->{page});
+ my $oldoutput = $config{destdir}."/".IkiWiki::htmlpage($data->{page});
+
+ $config{aggregateinternal} = 1;
+ my $newname = "$config{srcdir}/".htmlfn($data->{page});
+
+ debug "moving $oldname -> $newname";
+ if (-e $newname) {
+ if (-e $oldname) {
+ error("$newname already exists");
+ }
+ else {
+ debug("already renamed to $newname?");
+ }
}
- waitpid($pid,0);
- if ($?) {
- error "aggregation failed with code $?";
+ elsif (-e $oldname) {
+ rename($oldname, $newname) || error("$!");
+ }
+ else {
+ debug("$oldname not found");
+ }
+ if (-e $oldoutput) {
+ require IkiWiki::Render;
+ debug("removing output file $oldoutput");
+ IkiWiki::prune($oldoutput);
}
-
- clearstate();
- unlockaggregate();
}
-} #}}}
+
+ savestate();
+ IkiWiki::unlockwiki;
+
+ unlockaggregate();
+}
-sub needsbuild (@) { #{{{
+sub needsbuild (@) {
my $needsbuild=shift;
loadstate();
markunseen($feed->{sourcepage});
}
}
-} # }}}
-sub preprocess (@) { #{{{
+ return $needsbuild;
+}
+
+sub preprocess (@) {
my %params=@_;
foreach my $required (qw{name url}) {
if (! exists $params{$required}) {
- return "[[aggregate ".sprintf(gettext("missing %s parameter"), $required)."]]";
+ error sprintf(gettext("missing %s parameter"), $required)
}
}
$feed->{name}=$name;
$feed->{sourcepage}=$params{page};
$feed->{url}=$params{url};
- my $dir=exists $params{dir} ? $params{dir} : $params{page}."/".IkiWiki::titlepage($params{name});
+ my $dir=exists $params{dir} ? $params{dir} : $params{page}."/".titlepage($params{name});
$dir=~s/^\/+//;
($dir)=$dir=~/$config{wiki_file_regexp}/;
$feed->{dir}=$dir;
$feed->{updateinterval}=defined $params{updateinterval} ? $params{updateinterval} * 60 : 15 * 60;
$feed->{expireage}=defined $params{expireage} ? $params{expireage} : 0;
$feed->{expirecount}=defined $params{expirecount} ? $params{expirecount} : 0;
+ if (exists $params{template}) {
+ $params{template}=~s/[^-_a-zA-Z0-9]+//g;
+ }
+ else {
+ $params{template} = "aggregatepost"
+ }
+ $feed->{template}=$params{template} . ".tmpl";
delete $feed->{unseen};
$feed->{lastupdate}=0 unless defined $feed->{lastupdate};
+ $feed->{lasttry}=$feed->{lastupdate} unless defined $feed->{lasttry};
$feed->{numposts}=0 unless defined $feed->{numposts};
$feed->{newposts}=0 unless defined $feed->{newposts};
$feed->{message}=gettext("new feed") unless defined $feed->{message};
($feed->{newposts} ? "; ".$feed->{newposts}.
" ".gettext("new") : "").
")";
-} # }}}
+}
-sub delete (@) { #{{{
+sub delete (@) {
my @files=@_;
# Remove feed data for removed pages.
my $page=pagename($file);
markunseen($page);
}
-} #}}}
+}
-sub markunseen ($) { #{{{
+sub markunseen ($) {
my $page=shift;
foreach my $id (keys %feeds) {
$feeds{$id}->{unseen}=1;
}
}
-} #}}}
+}
my $state_loaded=0;
-sub loadstate () { #{{{
+sub loadstate () {
return if $state_loaded;
$state_loaded=1;
if (-e "$config{wikistatedir}/aggregate") {
- open(IN, "$config{wikistatedir}/aggregate") ||
+ open(IN, "<", "$config{wikistatedir}/aggregate") ||
die "$config{wikistatedir}/aggregate: $!";
while (<IN>) {
$_=IkiWiki::possibly_foolish_untaint($_);
close IN;
}
-} #}}}
+}
-sub savestate () { #{{{
+sub savestate () {
return unless $state_loaded;
garbage_collect();
- eval q{use HTML::Entities};
- error($@) if $@;
my $newfile="$config{wikistatedir}/aggregate.new";
my $cleanup = sub { unlink($newfile) };
- open (OUT, ">$newfile") || error("open $newfile: $!", $cleanup);
+ open (OUT, ">", $newfile) || error("open $newfile: $!", $cleanup);
foreach my $data (values %feeds, values %guids) {
my @line;
foreach my $field (keys %$data) {
push @line, "tag=$_" foreach @{$data->{tags}};
}
else {
- push @line, "$field=".$data->{$field};
+ push @line, "$field=".$data->{$field}
+ if defined $data->{$field};
}
}
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 garbage_collect () { #{{{
+ my $timestamp=undef;
+ foreach my $feed (keys %feeds) {
+ my $t=$feeds{$feed}->{lastupdate}+$feeds{$feed}->{updateinterval};
+ if (! defined $timestamp || $timestamp > $t) {
+ $timestamp=$t;
+ }
+ }
+ $newfile=~s/\.new$/time/;
+ open (OUT, ">", $newfile) || error("open $newfile: $!", $cleanup);
+ if (defined $timestamp) {
+ print OUT $timestamp."\n";
+ }
+ close OUT || error("save $newfile: $!", $cleanup);
+}
+
+sub garbage_collect () {
foreach my $name (keys %feeds) {
# remove any feeds that were not seen while building the pages
# that used to contain them
foreach my $guid (values %guids) {
# any guid whose feed is gone should be removed
if (! exists $feeds{$guid->{feed}}) {
- unlink pagefile($guid->{page})
+ unlink "$config{srcdir}/".htmlfn($guid->{page})
if exists $guid->{page};
delete $guids{$guid->{guid}};
}
# handle expired guids
elsif ($guid->{expired} && exists $guid->{page}) {
- unlink pagefile($guid->{page});
+ unlink "$config{srcdir}/".htmlfn($guid->{page});
delete $guid->{page};
delete $guid->{md5};
}
}
-} #}}}
+}
-sub mergestate () { #{{{
+sub mergestate () {
# Load the current state in from disk, and merge into it
# values from the state in memory that might have changed
# during aggregation.
# fields.
foreach my $name (keys %myfeeds) {
if (exists $feeds{$name}) {
- foreach my $field (qw{message lastupdate numposts
- newposts error}) {
+ foreach my $field (qw{message lastupdate lasttry
+ numposts newposts error}) {
$feeds{$name}->{$field}=$myfeeds{$name}->{$field};
}
}
}
# New guids can be created during aggregation.
+ # Guids have a few fields that may be updated during aggregation.
# It's also possible that guids were removed from the on-disk state
# while the aggregation was in process. That would only happen if
# their feed was also removed, so any removed guids added back here
if (! exists $guids{$guid}) {
$guids{$guid}=$myguids{$guid};
}
+ else {
+ foreach my $field (qw{md5}) {
+ $guids{$guid}->{$field}=$myguids{$guid}->{$field};
+ }
+ }
}
-} #}}}
+}
-sub clearstate () { #{{{
+sub clearstate () {
%feeds=();
%guids=();
$state_loaded=0;
-} #}}}
+}
-sub expire () { #{{{
+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}} }
+ foreach my $item (sort { ($IkiWiki::pagectime{$b->{page}} || 0) <=> ($IkiWiki::pagectime{$a->{page}} || 0) }
+ grep { exists $_->{page} && $_->{feed} eq $feed->{name} }
values %guids) {
if ($feed->{expireage}) {
- my $days_old = (time - $IkiWiki::pagectime{$item->{page}}) / 60 / 60 / 24;
+ my $days_old = (time - ($IkiWiki::pagectime{$item->{page}} || 0)) / 60 / 60 / 24;
if ($days_old > $feed->{expireage}) {
debug(sprintf(gettext("expiring %s (%s days old)"),
$item->{page}, int($days_old)));
}
}
}
-} #}}}
+}
-sub needsaggregate () { #{{{
+sub needsaggregate () {
return values %feeds if $config{rebuild};
return grep { time - $_->{lastupdate} >= $_->{updateinterval} } values %feeds;
-} #}}}
+}
-sub aggregate (@) { #{{{
+sub aggregate (@) {
eval q{use XML::Feed};
error($@) if $@;
eval q{use URI::Fetch};
error($@) if $@;
- eval q{use HTML::Entities};
- error($@) if $@;
foreach my $feed (@_) {
- $feed->{lastupdate}=time;
+ $feed->{lasttry}=time;
$feed->{newposts}=0;
- $feed->{message}=sprintf(gettext("processed ok at %s"),
- displaytime($feed->{lastupdate}));
+ $feed->{message}=sprintf(gettext("last checked %s"),
+ displaytime($feed->{lasttry}));
$feed->{error}=0;
debug(sprintf(gettext("checking feed %s ..."), $feed->{name}));
debug($feed->{message});
next;
}
+
+ # lastupdate is only set if we were able to contact the server
+ $feed->{lastupdate}=$feed->{lasttry};
+
if ($res->status == URI::Fetch::URI_GONE()) {
$feed->{message}=gettext("feed not found");
$feed->{error}=1;
# 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)};
+ $f=eval {
+ $content=Encode::decode_utf8($content, 0);
+ XML::Feed->parse(\$content)
+ };
}
if ($@) {
# Another possibility is badly escaped entities.
$feed->{message}.=" ".sprintf(gettext("(feed entities escaped)"));
$content=~s/\&(?!amp)(\w+);/&$1;/g;
- $content=Encode::decode_utf8($content);
- $f=eval{XML::Feed->parse(\$content)};
+ $f=eval {
+ $content=Encode::decode_utf8($content, 0);
+ XML::Feed->parse(\$content)
+ };
}
if ($@) {
$feed->{message}=gettext("feed crashed XML::Feed!")." ($@)";
}
foreach my $entry ($f->entries) {
+ # XML::Feed doesn't work around XML::Atom's bizarre
+ # API, so we will. Real unicode strings? Yes please.
+ # See [[bugs/Aggregated_Atom_feeds_are_double-encoded]]
+ local $XML::Atom::ForceUnicode = 1;
+
+ my $c=$entry->content;
+ # atom feeds may have no content, only a summary
+ if (! defined $c && ref $entry->summary) {
+ $c=$entry->summary;
+ }
+
add_page(
feed => $feed,
copyright => $f->copyright,
title => defined $entry->title ? decode_entities($entry->title) : "untitled",
link => $entry->link,
- content => defined $entry->content->body ? $entry->content->body : "",
- guid => defined $entry->id ? $entry->id : time."_".$feed->name,
+ content => (defined $c && defined $c->body) ? $c->body : "",
+ guid => defined $entry->id ? $entry->id : time."_".$feed->{name},
ctime => $entry->issued ? ($entry->issued->epoch || time) : time,
+ base => (defined $c && $c->can("base")) ? $c->base : undef,
);
}
}
-} #}}}
+}
-sub add_page (@) { #{{{
+sub add_page (@) {
my %params=@_;
my $feed=$params{feed};
$feed->{newposts}++;
# assign it an unused page
- my $page=IkiWiki::titlepage($params{title});
+ my $page=titlepage($params{title});
# escape slashes and periods in title so it doesn't specify
# directory name or trigger ".." disallowing code.
$page=~s!([/.])!"__".ord($1)."__"!eg;
}
my $c="";
while (exists $IkiWiki::pagecase{lc $page.$c} ||
- -e pagefile($page.$c)) {
+ -e "$config{srcdir}/".htmlfn($page.$c)) {
$c++
}
$c="";
$page=$feed->{dir}."/item";
while (exists $IkiWiki::pagecase{lc $page.$c} ||
- -e pagefile($page.$c)) {
+ -e "$config{srcdir}/".htmlfn($page.$c)) {
$c++
}
}
$guid->{md5}=$digest;
# Create the page.
- my $template=template("aggregatepost.tmpl", blind_cache => 1);
+ my $template=template($feed->{template}, blind_cache => 1);
$template->param(title => $params{title})
if defined $params{title} && length($params{title});
- $template->param(content => htmlescape(htmlabs($params{content}, $feed->{feedurl})));
+ $template->param(content => wikiescape(htmlabs($params{content},
+ defined $params{base} ? $params{base} : $feed->{feedurl})));
$template->param(name => $feed->{name});
$template->param(url => $feed->{url});
$template->param(copyright => $params{copyright})
writefile(htmlfn($guid->{page}), $config{srcdir},
$template->output);
- # Set the mtime, this lets the build process get the right creation
- # time on record for the new page.
- utime $mtime, $mtime, pagefile($guid->{page})
- if defined $mtime && $mtime <= time;
-} #}}}
+ if (defined $mtime && $mtime <= time) {
+ # Set the mtime, this lets the build process get the right
+ # creation time on record for the new page.
+ utime $mtime, $mtime, "$config{srcdir}/".htmlfn($guid->{page});
+ # Store it in pagectime for expiry code to use also.
+ $IkiWiki::pagectime{$guid->{page}}=$mtime
+ unless exists $IkiWiki::pagectime{$guid->{page}};
+ }
+ else {
+ # Dummy value for expiry code.
+ $IkiWiki::pagectime{$guid->{page}}=time
+ unless exists $IkiWiki::pagectime{$guid->{page}};
+ }
+}
-sub htmlescape ($) { #{{{
+sub wikiescape ($) {
# escape accidental wikilinks and preprocessor stuff
- my $html=shift;
- $html=~s/(?<!\\)\[\[/\\\[\[/g;
- return $html;
-} #}}}
+ return encode_entities(shift, '\[\]');
+}
-sub urlabs ($$) { #{{{
+sub urlabs ($$) {
my $url=shift;
my $urlbase=shift;
URI->new_abs($url, $urlbase)->as_string;
-} #}}}
+}
-sub htmlabs ($$) { #{{{
+sub htmlabs ($$) {
# Convert links in html from relative to absolute.
# Note that this is a heuristic, which is not specified by the rss
# spec and may not be right for all feeds. Also, see Debian
$p->eof;
return $ret;
-} #}}}
-
-sub pagefile ($) { #{{{
- my $page=shift;
-
- return "$config{srcdir}/".htmlfn($page);
-} #}}}
+}
-sub htmlfn ($) { #{{{
- return shift().".".$config{htmlext};
-} #}}}
+sub htmlfn ($) {
+ return shift().".".($config{aggregateinternal} ? "_aggregated" : $config{htmlext});
+}
my $aggregatelock;
-sub lockaggregate () { #{{{
+sub lockaggregate () {
# Take an exclusive lock to prevent multiple concurrent aggregators.
# Returns true if the lock was aquired.
if (! -d $config{wikistatedir}) {
return 0;
}
return 1;
-} #}}}
+}
-sub unlockaggregate () { #{{{
+sub unlockaggregate () {
return close($aggregatelock) if $aggregatelock;
return;
-} #}}}
+}
1