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<?php
class Af_Feedmod extends Plugin implements IHandler
{
private $link;
private $host;
function about()
{
return array(
0.9, // version
'Replace feed contents by contents from the linked page', // description
'mbirth', // author
false, // is_system
);
}
function init($host)
{
$this->link = $host->get_link();
$this->host = $host;
$host->add_hook($host::HOOK_PREFS_TABS, $this);
# only allowed for system plugins: $host->add_handler('pref-feedmod', '*', $this);
$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
}
function csrf_ignore($method)
{
$csrf_ignored = array("index", "edit");
return array_search($method, $csrf_ignored) !== false;
}
function before($method)
{
if ($_SESSION["uid"]) {
return true;
}
return false;
}
function after()
{
return true;
}
function hook_article_filter($article)
{
global $pluginhost;
$json_conf = $pluginhost->get($this, 'json_conf');
$owner_uid = $article['owner_uid'];
$data = json_decode($json_conf, true);
foreach ($data as $urlpart=>$config) {
if (strpos($article['link'], $urlpart) === false) continue; // skip this config if URL not matching
if (strpos($article['plugin_data'], "feedmod,$owner_uid:") !== false) {
// do not process an article more than once
if (isset($article['stored']['content'])) $article['content'] = $article['stored']['content'];
break;
}
switch ($config['type']) {
case 'xpath':
$doc = new DOMDocument();
@$doc->loadHTML(fetch_file_contents($article['link']));
if ($doc) {
$basenode = false;
$xpath = new DOMXPath($doc);
$entries = $xpath->query('(//'.$config['xpath'].')'); // find main DIV according to config
if ($entries->length > 0) $basenode = $entries->item(0);
if ($basenode) {
$article['content'] = $doc->saveXML($basenode);
$article['plugin_data'] = "feedmod,$owner_uid:" . $article['plugin_data'];
}
}
break;
default:
// unknown type or invalid config
continue;
}
break; // if we got here, we found the correct entry in $data, do not process more
}
return $article;
}
function hook_prefs_tabs($args)
{
print '<div id="instanceConfigTab" dojoType="dijit.layout.ContentPane"
href="backend.php?op=af_feedmod"
title="' . __('FeedMod') . '"></div>';
}
function index()
{
global $pluginhost;
$sometext = $pluginhost->get($this, "sometext");
$json_conf = $pluginhost->get($this, 'json_conf');
print "<form dojoType=\"dijit.form.Form\">";
print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
evt.preventDefault();
if (this.validate()) {
new Ajax.Request('backend.php', {
parameters: dojo.objectToQuery(this.getValues()),
onComplete: function(transport) {
if (transport.responseText.indexOf('error')>=0) notify_error(transport.responseText);
else notify_info(transport.responseText);
}
});
//this.reset();
}
</script>";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_feedmod\">";
print "<table width=\"100%\" class=\"prefPrefsList\">";
print "<tr><td width=\"40%\">".__("Some text")."</td>";
print "<td class=\"prefValue\"><input dojoType=\"dijit.form.ValidationTextBox\" required=\"1\" name=\"sometext\" value=\"$sometext\"></td></tr>";
print "</table>";
print "<table width='100%'><tr><td>";
print "<textarea dojoType=\"dijit.form.SimpleTextarea\" name=\"json_conf\" style=\"font-size: 12px; width: 99%; height: 500px;\">$json_conf</textarea>";
print "</td></tr></table>";
print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".__("Save")."</button>";
print "</form>";
}
function save()
{
$json_conf = $_POST['json_conf'];
if (is_null(json_decode($json_conf))) {
echo __("error: Invalid JSON!");
return false;
}
$this->host->set($this, 'json_conf', $json_conf);
echo __("Configuration saved.");
}
}
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