2010-08-12 22:53:52 +02:00
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#!/usr/bin/perl
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package IkiWiki::Plugin::flattr;
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use warnings;
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use strict;
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use IkiWiki 3.00;
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sub import {
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hook(type => "getsetup", id => "flattr", call => \&getsetup);
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hook(type => "preprocess", id => "flattr", call => \&preprocess);
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2010-08-13 00:18:35 +02:00
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hook(type => "format", id => "flattr", call => \&format);
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2010-08-12 22:53:52 +02:00
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}
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sub getsetup () {
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return
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plugin => {
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safe => 1,
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rebuild => undef,
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},
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flattr_userid => {
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type => "string",
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example => 'joeyh',
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description => "userid or user name to use by default for Flattr buttons",
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advanced => 0,
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safe => 1,
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rebuild => undef,
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},
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}
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my %flattr_pages;
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sub preprocess (@) {
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my %params=@_;
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$flattr_pages{$params{destpage}}=1;
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my $url=$params{url};
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if (! defined $url) {
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$url=urlto($params{page}, "", 1);
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}
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my @fields;
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foreach my $field (qw{language uid button hidden category tags}) {
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if (exists $params{$field}) {
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push @fields, "$field:$params{$field}";
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}
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}
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return '<a class="FlattrButton" href="'.$url.'"'.
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(exists $params{title} ? ' title="'.$params{title}.'"' : '').
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' rev="flattr;'.join(';', @fields).';"'.
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'>'.
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(exists $params{description} ? $params{description} : '').
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'</a>';
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}
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2010-08-13 00:18:35 +02:00
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sub format (@) {
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2010-08-12 22:53:52 +02:00
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my %params=@_;
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# Add flattr's javascript to pages with flattr buttons.
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if ($flattr_pages{$params{page}}) {
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2010-08-13 00:18:35 +02:00
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if (! ($params{content}=~s!^(<body[^>]*>)!$1.flattrjs()!em)) {
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# no <body> tag, probably in preview mode
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$params{content}=flattrjs().$params{content};
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}
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2010-08-12 22:53:52 +02:00
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}
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2010-08-13 00:18:35 +02:00
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return $params{content};
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2010-08-12 22:53:52 +02:00
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}
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my $js_cached;
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sub flattrjs {
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return $js_cached if defined $js_cached;
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my $js_url='https://api.flattr.com/js/0.5.0/load.js?mode=auto';
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if (defined $config{flattr_userid}) {
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my $userid=$config{flattr_userid};
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$userid=~s/[^-A-Za-z0-9_]//g; # sanitize for inclusion in javascript
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$js_url.="&uid=$userid";
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}
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# This is Flattr's standard javascript snippet to include their
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# external javascript file, asynchronously.
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return $js_cached=<<"EOF";
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<script type="text/javascript">
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<!--//--><![CDATA[//><!--
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(function() {
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var s = document.createElement('script'), t = document.getElementsByTagName('script')[0];
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s.type = 'text/javascript';
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s.async = true;
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s.src = '$js_url';
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t.parentNode.insertBefore(s, t);
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})();//--><!]]>
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</script>
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EOF
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}
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1
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