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<?php
class Flattr extends Plugin {
private $link;
private $host;
function init($host) {
$this->link = $host->get_link();
$this->host = $host;
$host->add_hook($host::HOOK_ARTICLE_BUTTON, $this);
}
function about() {
return array(1.1,
"Share articles on Flattr (if they exist in their catalogue)",
"F. Eitel, N. Honing");
}
function hook_article_button($line) {
$rv = "";
$article_link = $line['link'];
if ($article_link) {
$encoded = urlencode($article_link);
$r = file_get_contents("https://api.flattr.com/rest/v2/things/lookup/?url=$encoded");
$response = json_decode($r, true);
$image = "<img src=\"".theme_image($this->link, 'plugins/flattr/flattr.png')."\"
class='tagsPic' style=\"cursor : pointer\"
title='".__('Flattr this article.')."'>";
// if Flattr has it in the catalogue, we display the button
if ($response and array_key_exists('link', $response)) {
$rv = "<a id='flattr' target='_blank' href='" . $response['link'] . "'> . $image . </a>";
} else {
// We can't submit a thing to the catalogue without giving a Flattr user id (who would be the owner)
// see http://developers.flattr.net/auto-submit
//$rv = "<a id='flattr' href='https://flattr.com/submit/auto?url=" . $encoded . "'>" . $image . "</a>";
$rv = '';
// Another useful thing would be any rel=payment link (which would have the user id as well),
// but tt-rss is not checking that (yet), I believe. See http://developers.flattr.net/feed
}
}
return $rv;
}
}
?>
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