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Pingback receiving is working now with internal functionality in comment.php

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This commit is contained in:
Grischa Brockhaus 2007-08-14 17:38:50 +00:00
parent b2871fbcfd
commit 71ba81dc43
2 changed files with 93 additions and 3 deletions
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3
docs/NEWS
View File

@ -3,6 +3,9 @@
Version 1.3 ()
------------------------------------------------------------------------
* Pingback receiving is working now with internal functionality in
comment.php (brockhaus)
* On the fly update of the media database: Not only images are added
but video and audio, too. (brockhaus)

93
include/functions_trackbacks.inc.php
View File

@ -377,14 +377,29 @@ function add_trackback ($id, $title, $url, $name, $excerpt) {
*/
function add_pingback ($id, $postdata) {
global $serendipity;
$sourceURI = getPingbackParam('sourceURI', $postdata);
$targetURI = getPingbackParam('targetURI', $postdata);
if (isset($sourceURI) && isset($targetURI)) {
$path = parse_url($sourceURI);
$local = $targetURI;
$comment['title'] = 'PingBack';
$comment['url'] = $sourceURI;
$comment['comment'] = '';
$comment['name'] = $path['host'];
fetchPingbackData($comment);
if(preg_match('@<methodcall>\s*<methodName>\s*pingback.ping\s*</methodName>\s*<params>\s*<param>\s*<value>\s*<string>([^<]*)</string>\s*</value>\s*</param>\s*<param>\s*<value>\s*<string>([^<]*)</string>\s*</value>\s*</param>\s*</params>\s*</methodCall>@i', $postdata, $matches)) {
serendipity_saveComment($id, $comment, 'PINGBACK');
return 1;
}
if(preg_match('@<methodCall>\s*<methodName>\s*pingback.ping\s*</methodName>\s*<params>\s*<param>\s*<value>\s*<string>([^<]*)</string>\s*</value>\s*</param>\s*<param>\s*<value>\s*<string>([^<]*)</string>\s*</value>\s*</param>\s*</params>\s*</methodCall>@is', $postdata, $matches)) {
$remote = $matches[1];
$local = $matches[2];
$comment['title'] = '';
$path = parse_url($remote);
$comment['title'] = 'PingBack';
$comment['url'] = $remote;
$comment['comment'] = '';
$comment['name'] = '';
$comment['name'] = $path['host'];
fetchPingbackData($comment);
serendipity_saveComment($id, $comment, 'PINGBACK');
return 1;
@ -392,6 +407,78 @@ function add_pingback ($id, $postdata) {
return 0;
}
/**
* Gets a XML-RPC pingback.ping value by given parameter name
* @access private
* @param string Name of the paramameter
* @param string Buffer containing the pingback XML
*/
function getPingbackParam($paramName, $data) {
$pattern = "<methodCall>.*?<methodName>\s*pingback.ping\s*</methodName>.*?<params>.*?<param>\s*((<name>\s*$paramName\s*</name>\s*<value>\s*<string>([^<]*)</string>\s*</value>)|(<value>\s*<string>([^<]*)</string>\s*</value>\s*<name>\s*$paramName\s*</name>))\s*</param>.*?</params>.*?</methodCall>";
if (preg_match('@' . $pattern .'@is',$data, $matches)) {
return $matches[3];
} else {
return null;
}
}
/**
* Fetches additional comment data from the page that sent the pingback
* @access private
* @param array comment array to be filled
*/
function fetchPingbackData( &$comment) {
if (!isset($comment) || !is_array($comment) || !isset($comment['url'])) {
return;
}
require_once S9Y_PEAR_PATH . 'HTTP/Request.php';
$url = $comment['url'];
// Allow redirection
$request_pars['allowRedirects'] = true;
$request_pars['timeout'] = 20;
serendipity_request_start();
// Request the page
$req = &new HTTP_Request($url, $request_pars);
// code 200: OK, code 30x: REDIRECTION
$responses = "/(200 OK)|(30[0-9] Found)/"; // |(30[0-9] Moved)
if ((PEAR::isError($req->sendRequest()) || preg_match($responses, $req->getResponseCode()))) {
// nothing to do,
}
else {
$fContent = $req->getResponseBody();
// Get a title
if (preg_match('@<head>.*?<title>(.*?)</title>.*?</head>@is',$fContent,$matches)) {
$comment['title'] = strip_tags($matches[1]);
}
// Get a part of the article
if (preg_match('@<body[^>]*>(.*?)</body>@is',$fContent,$matches)) {
$body = strip_tags($matches[1]);
//TODO: Serendipity comes into trouble wit html_entity_decode and "Umlaute"
$body = str_replace(array("&nbsp;"),array(' '),$body);
// replace whitespace with single space
$body = preg_replace('@\s+@s', ' ', $body);
// truncate the text to 200 chars
$arr = str_split($body, 200);
$body = $arr[0];
$comment['comment'] = $body . '[..]';
}
}
serendipity_request_end();
}
/**
* Create an excerpt for a trackback to send
*