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gnu-social/plugins/Mollom/MollomPlugin.php

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Add shiny's mollom plugin
2010-01-06 05:06:43 +00:00
<?php
/**
* Laconica, the distributed open-source microblogging tool
*
* Plugin to check submitted notices with Mollom
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Mollom is a bayesian spam checker, wrapped into a webservice
* This plugin is based on the Drupal Mollom module
*
* @category Plugin
* @package Laconica
* @author Brenda Wallace <brenda@cpan.org>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
*/
if (!defined('STATUSNET')) {
exit(1);
}
define('MOLLOMPLUGIN_VERSION', '0.1');
define('MOLLOM_API_VERSION', '1.0');
define('MOLLOM_ANALYSIS_UNKNOWN' , 0);
define('MOLLOM_ANALYSIS_HAM' , 1);
define('MOLLOM_ANALYSIS_SPAM' , 2);
define('MOLLOM_ANALYSIS_UNSURE' , 3);
define('MOLLOM_MODE_DISABLED', 0);
define('MOLLOM_MODE_CAPTCHA' , 1);
define('MOLLOM_MODE_ANALYSIS', 2);
define('MOLLOM_FALLBACK_BLOCK' , 0);
define('MOLLOM_FALLBACK_ACCEPT', 1);
define('MOLLOM_ERROR' , 1000);
define('MOLLOM_REFRESH' , 1100);
define('MOLLOM_REDIRECT', 1200);
/**
* Plugin to check submitted notices with Mollom
*
* Mollom is a bayesian spam filter provided by webservice.
*
* @category Plugin
* @package Laconica
* @author Brenda Wallace <shiny@cpan.org>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*
* @see Event
*/
class MollomPlugin extends Plugin
{
function __construct($url=null) {
parent::__construct();
}
function onStartNoticeSave($notice)
{
if (common_config('mollom', 'public_key')) {
//Check spam
$data = array(
'post_body' => $notice->content,
'author_name' => $profile->nickname,
'author_url' => $profile->homepage,
'author_id' => $profile->id,
'author_ip' => $this->getClientIp(),
);
$response = $this->mollom('mollom.checkContent', $data);
if ($response['spam'] == MOLLOM_ANALYSIS_SPAM) {
throw new ClientException(_("Spam Detected"), 400);
}
if ($response['spam'] == MOLLOM_ANALYSIS_UNSURE) {
//if unsure, let through
}
if($response['spam'] == MOLLOM_ANALYSIS_HAM) {
// all good! :-)
}
}
return true;
}
function getClientIP() {
if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
// Note: order matters here; use proxy-forwarded stuff first
foreach (array('HTTP_X_FORWARDED_FOR', 'CLIENT-IP', 'REMOTE_ADDR') as $k) {
if (isset($_SERVER[$k])) {
return $_SERVER[$k];
}
}
}
return '127.0.0.1';
}
/**
* Call a remote procedure at the Mollom server. This function will
* automatically add the information required to authenticate against
* Mollom.
*/
function mollom($method, $data = array()) {
if (!extension_loaded('xmlrpc')) {
if (!dl('xmlrpc.so')) {
common_log(LOG_ERR, "Can't pingback; xmlrpc extension not available.");
}
}
// Construct the server URL:
$public_key = common_config('mollom', 'public_key');
// Retrieve the list of Mollom servers from the database:
$servers = common_config('mollom', 'servers');
if ($servers == NULL) {
// Retrieve a list of valid Mollom servers from mollom.com:
$servers = $this->xmlrpc('http://xmlrpc.mollom.com/'. MOLLOM_API_VERSION, 'mollom.getServerList', $this->authentication());
// Store the list of servers in the database:
// TODO! variable_set('mollom_servers', $servers);
}
if (is_array($servers)) {
// Send the request to the first server, if that fails, try the other servers in the list:
foreach ($servers as $server) {
$auth = $this->authentication();
$data = array_merge($data, $auth);
$result = $this->xmlrpc($server .'/'. MOLLOM_API_VERSION, $method, $data);
// Debug output:
if (isset($data['session_id'])) {
Use common_{log,debug} instead of error_log for logging
2010-01-06 05:09:07 +00:00
common_debug("called $method at server $server with session ID '". $data['session_id'] ."'");
Add shiny's mollom plugin
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}
else {
Use common_{log,debug} instead of error_log for logging
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common_debug("called $method at server $server with no session ID");
Add shiny's mollom plugin
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}
if ($errno = $this->xmlrpc_errno()) {
Use common_{log,debug} instead of error_log for logging
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common_log(LOG_ERR, sprintf('Error @errno: %s - %s - %s - <pre>%s</pre>', $this->xmlrpc_errno(), $server, $this->xmlrpc_error_msg(), $method, print_r($data, TRUE)));
Add shiny's mollom plugin
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if ($errno == MOLLOM_REFRESH) {
// Retrieve a list of valid Mollom servers from mollom.com:
$servers = $this->xmlrpc('http://xmlrpc.mollom.com/'. MOLLOM_API_VERSION, 'mollom.getServerList', $this->authentication());
// Store the updated list of servers in the database:
//tODO variable_set('mollom_servers', $servers);
}
else if ($errno == MOLLOM_ERROR) {
return $result;
}
else if ($errno == MOLLOM_REDIRECT) {
// Do nothing, we select the next client automatically.
}
// Reset the XMLRPC error:
$this->xmlrpc_error(0); // FIXME: this is crazy.
}
else {
Use common_{log,debug} instead of error_log for logging
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common_debug("Result = " . print_r($result, TRUE));
Add shiny's mollom plugin
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return $result;
}
}
}
// If none of the servers worked, activate the fallback mechanism:
Use common_{log,debug} instead of error_log for logging
2010-01-06 05:09:07 +00:00
common_debug("none of the servers worked");
Add shiny's mollom plugin
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// _mollom_fallback();
// If everything failed, we reset the server list to force Mollom to request a new list:
//TODO variable_set('mollom_servers', array());
}
/**
* This function generate an array with all the information required to
* authenticate against Mollom. To prevent that requests are forged and
* that you are impersonated, each request is signed with a hash computed
* based on a private key and a timestamp.
*
* Both the client and the server share the secret key that is used to
* create the authentication hash based on a timestamp. They both hash
* the timestamp with the secret key, and if the hashes match, the
* authenticity of the message has been validated.
*
* To avoid that someone can intercept a (hash, timestamp)-pair and
* use that to impersonate a client, Mollom will reject the request
* when the timestamp is more than 15 minutes off.
*
* Make sure your server's time is synchronized with the world clocks,
* and that you don't share your private key with anyone else.
*/
private function authentication() {
$public_key = common_config('mollom', 'public_key');
$private_key = common_config('mollom', 'private_key');
// Generate a timestamp according to the dateTime format (http://www.w3.org/TR/xmlschema-2/#dateTime):
$time = gmdate("Y-m-d\TH:i:s.\\0\\0\\0O", time());
// Calculate a HMAC-SHA1 according to RFC2104 (http://www.ietf.org/rfc/rfc2104.txt):
$hash = base64_encode(
pack("H*", sha1((str_pad($private_key, 64, chr(0x00)) ^ (str_repeat(chr(0x5c), 64))) .
pack("H*", sha1((str_pad($private_key, 64, chr(0x00)) ^ (str_repeat(chr(0x36), 64))) .
$time))))
);
// Store everything in an array. Elsewhere in the code, we'll add the
// acutal data before we pass it onto the XML-RPC library:
$data['public_key'] = $public_key;
$data['time'] = $time;
$data['hash'] = $hash;
return $data;
}
function xmlrpc($url) {
//require_once './includes/xmlrpc.inc';
$args = func_get_args();
return call_user_func_array(array('MollomPlugin', '_xmlrpc'), $args);
}
/**
* Recursively turn a data structure into objects with 'data' and 'type' attributes.
*
* @param $data
* The data structure.
* @param $type
* Optional type assign to $data.
* @return
* Object.
*/
function xmlrpc_value($data, $type = FALSE) {
$xmlrpc_value = new stdClass();
$xmlrpc_value->data = $data;
if (!$type) {
$type = $this->xmlrpc_value_calculate_type($xmlrpc_value);
}
$xmlrpc_value->type = $type;
if ($type == 'struct') {
// Turn all the values in the array into new xmlrpc_values
foreach ($xmlrpc_value->data as $key => $value) {
$xmlrpc_value->data[$key] = $this->xmlrpc_value($value);
}
}
if ($type == 'array') {
for ($i = 0, $j = count($xmlrpc_value->data); $i < $j; $i++) {
$xmlrpc_value->data[$i] = $this->xmlrpc_value($xmlrpc_value->data[$i]);
}
}
return $xmlrpc_value;
}
/**
* Map PHP type to XML-RPC type.
*
* @param $xmlrpc_value
* Variable whose type should be mapped.
* @return
* XML-RPC type as string.
* @see
* http://www.xmlrpc.com/spec#scalars
*/
function xmlrpc_value_calculate_type(&$xmlrpc_value) {
// http://www.php.net/gettype: Never use gettype() to test for a certain type [...] Instead, use the is_* functions.
if (is_bool($xmlrpc_value->data)) {
return 'boolean';
}
if (is_double($xmlrpc_value->data)) {
return 'double';
}
if (is_int($xmlrpc_value->data)) {
return 'int';
}
if (is_array($xmlrpc_value->data)) {
// empty or integer-indexed arrays are 'array', string-indexed arrays 'struct'
return empty($xmlrpc_value->data) || range(0, count($xmlrpc_value->data) - 1) === array_keys($xmlrpc_value->data) ? 'array' : 'struct';
}
if (is_object($xmlrpc_value->data)) {
if ($xmlrpc_value->data->is_date) {
return 'date';
}
if ($xmlrpc_value->data->is_base64) {
return 'base64';
}
$xmlrpc_value->data = get_object_vars($xmlrpc_value->data);
return 'struct';
}
// default
return 'string';
}
/**
* Generate XML representing the given value.
*
* @param $xmlrpc_value
* @return
* XML representation of value.
*/
function xmlrpc_value_get_xml($xmlrpc_value) {
switch ($xmlrpc_value->type) {
case 'boolean':
return '<boolean>'. (($xmlrpc_value->data) ? '1' : '0') .'</boolean>';
break;
case 'int':
return '<int>'. $xmlrpc_value->data .'</int>';
break;
case 'double':
return '<double>'. $xmlrpc_value->data .'</double>';
break;
case 'string':
// Note: we don't escape apostrophes because of the many blogging clients
// that don't support numerical entities (and XML in general) properly.
return '<string>'. htmlspecialchars($xmlrpc_value->data) .'</string>';
break;
case 'array':
$return = '<array><data>'."\n";
foreach ($xmlrpc_value->data as $item) {
$return .= ' <value>'. $this->xmlrpc_value_get_xml($item) ."</value>\n";
}
$return .= '</data></array>';
return $return;
break;
case 'struct':
$return = '<struct>'."\n";
foreach ($xmlrpc_value->data as $name => $value) {
$return .= " <member><name>". htmlentities($name) ."</name><value>";
$return .= $this->xmlrpc_value_get_xml($value) ."</value></member>\n";
}
$return .= '</struct>';
return $return;
break;
case 'date':
return $this->xmlrpc_date_get_xml($xmlrpc_value->data);
break;
case 'base64':
return $this->xmlrpc_base64_get_xml($xmlrpc_value->data);
break;
}
return FALSE;
}
/**
* Perform an HTTP request.
*
* This is a flexible and powerful HTTP client implementation. Correctly handles
* GET, POST, PUT or any other HTTP requests. Handles redirects.
*
* @param $url
* A string containing a fully qualified URI.
* @param $headers
* An array containing an HTTP header => value pair.
* @param $method
* A string defining the HTTP request to use.
* @param $data
* A string containing data to include in the request.
* @param $retry
* An integer representing how many times to retry the request in case of a
* redirect.
* @return
* An object containing the HTTP request headers, response code, headers,
* data and redirect status.
*/
function http_request($url, $headers = array(), $method = 'GET', $data = NULL, $retry = 3) {
global $db_prefix;
$result = new stdClass();
// Parse the URL and make sure we can handle the schema.
$uri = parse_url($url);
if ($uri == FALSE) {
$result->error = 'unable to parse URL';
return $result;
}
if (!isset($uri['scheme'])) {
$result->error = 'missing schema';
return $result;
}
switch ($uri['scheme']) {
case 'http':
$port = isset($uri['port']) ? $uri['port'] : 80;
$host = $uri['host'] . ($port != 80 ? ':'. $port : '');
$fp = @fsockopen($uri['host'], $port, $errno, $errstr, 15);
break;
case 'https':
// Note: Only works for PHP 4.3 compiled with OpenSSL.
$port = isset($uri['port']) ? $uri['port'] : 443;
$host = $uri['host'] . ($port != 443 ? ':'. $port : '');
$fp = @fsockopen('ssl://'. $uri['host'], $port, $errno, $errstr, 20);
break;
default:
$result->error = 'invalid schema '. $uri['scheme'];
return $result;
}
// Make sure the socket opened properly.
if (!$fp) {
// When a network error occurs, we use a negative number so it does not
// clash with the HTTP status codes.
$result->code = -$errno;
$result->error = trim($errstr);
// Mark that this request failed. This will trigger a check of the web
// server's ability to make outgoing HTTP requests the next time that
// requirements checking is performed.
// @see system_requirements()
//TODO variable_set('drupal_http_request_fails', TRUE);
return $result;
}
// Construct the path to act on.
$path = isset($uri['path']) ? $uri['path'] : '/';
if (isset($uri['query'])) {
$path .= '?'. $uri['query'];
}
// Create HTTP request.
$defaults = array(
// RFC 2616: "non-standard ports MUST, default ports MAY be included".
// We don't add the port to prevent from breaking rewrite rules checking the
// host that do not take into account the port number.
'Host' => "Host: $host",
'User-Agent' => 'User-Agent: Drupal (+http://drupal.org/)',
'Content-Length' => 'Content-Length: '. strlen($data)
);
// If the server url has a user then attempt to use basic authentication
if (isset($uri['user'])) {
$defaults['Authorization'] = 'Authorization: Basic '. base64_encode($uri['user'] . (!empty($uri['pass']) ? ":". $uri['pass'] : ''));
}
// If the database prefix is being used by SimpleTest to run the tests in a copied
// database then set the user-agent header to the database prefix so that any
// calls to other Drupal pages will run the SimpleTest prefixed database. The
// user-agent is used to ensure that multiple testing sessions running at the
// same time won't interfere with each other as they would if the database
// prefix were stored statically in a file or database variable.
if (is_string($db_prefix) && preg_match("/^simpletest\d+$/", $db_prefix, $matches)) {
$defaults['User-Agent'] = 'User-Agent: ' . $matches[0];
}
foreach ($headers as $header => $value) {
$defaults[$header] = $header .': '. $value;
}
$request = $method .' '. $path ." HTTP/1.0\r\n";
$request .= implode("\r\n", $defaults);
$request .= "\r\n\r\n";
$request .= $data;
$result->request = $request;
fwrite($fp, $request);
// Fetch response.
$response = '';
while (!feof($fp) && $chunk = fread($fp, 1024)) {
$response .= $chunk;
}
fclose($fp);
// Parse response.
list($split, $result->data) = explode("\r\n\r\n", $response, 2);
$split = preg_split("/\r\n|\n|\r/", $split);
list($protocol, $code, $text) = explode(' ', trim(array_shift($split)), 3);
$result->headers = array();
// Parse headers.
while ($line = trim(array_shift($split))) {
list($header, $value) = explode(':', $line, 2);
if (isset($result->headers[$header]) && $header == 'Set-Cookie') {
// RFC 2109: the Set-Cookie response header comprises the token Set-
// Cookie:, followed by a comma-separated list of one or more cookies.
$result->headers[$header] .= ','. trim($value);
}
else {
$result->headers[$header] = trim($value);
}
}
$responses = array(
100 => 'Continue', 101 => 'Switching Protocols',
200 => 'OK', 201 => 'Created', 202 => 'Accepted', 203 => 'Non-Authoritative Information', 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content',
300 => 'Multiple Choices', 301 => 'Moved Permanently', 302 => 'Found', 303 => 'See Other', 304 => 'Not Modified', 305 => 'Use Proxy', 307 => 'Temporary Redirect',
400 => 'Bad Request', 401 => 'Unauthorized', 402 => 'Payment Required', 403 => 'Forbidden', 404 => 'Not Found', 405 => 'Method Not Allowed', 406 => 'Not Acceptable', 407 => 'Proxy Authentication Required', 408 => 'Request Time-out', 409 => 'Conflict', 410 => 'Gone', 411 => 'Length Required', 412 => 'Precondition Failed', 413 => 'Request Entity Too Large', 414 => 'Request-URI Too Large', 415 => 'Unsupported Media Type', 416 => 'Requested range not satisfiable', 417 => 'Expectation Failed',
500 => 'Internal Server Error', 501 => 'Not Implemented', 502 => 'Bad Gateway', 503 => 'Service Unavailable', 504 => 'Gateway Time-out', 505 => 'HTTP Version not supported'
);
// RFC 2616 states that all unknown HTTP codes must be treated the same as the
// base code in their class.
if (!isset($responses[$code])) {
$code = floor($code / 100) * 100;
}
switch ($code) {
case 200: // OK
case 304: // Not modified
break;
case 301: // Moved permanently
case 302: // Moved temporarily
case 307: // Moved temporarily
$location = $result->headers['Location'];
if ($retry) {
$result = drupal_http_request($result->headers['Location'], $headers, $method, $data, --$retry);
$result->redirect_code = $result->code;
}
$result->redirect_url = $location;
break;
default:
$result->error = $text;
}
$result->code = $code;
return $result;
}
/**
* Construct an object representing an XML-RPC message.
*
* @param $message
* String containing XML as defined at http://www.xmlrpc.com/spec
* @return
* Object
*/
function xmlrpc_message($message) {
$xmlrpc_message = new stdClass();
$xmlrpc_message->array_structs = array(); // The stack used to keep track of the current array/struct
$xmlrpc_message->array_structs_types = array(); // The stack used to keep track of if things are structs or array
$xmlrpc_message->current_struct_name = array(); // A stack as well
$xmlrpc_message->message = $message;
return $xmlrpc_message;
}
/**
* Parse an XML-RPC message. If parsing fails, the faultCode and faultString
* will be added to the message object.
*
* @param $xmlrpc_message
* Object generated by xmlrpc_message()
* @return
* TRUE if parsing succeeded; FALSE otherwise
*/
function xmlrpc_message_parse(&$xmlrpc_message) {
// First remove the XML declaration
$xmlrpc_message->message = preg_replace('/<\?xml(.*)?\?'.'>/', '', $xmlrpc_message->message);
if (trim($xmlrpc_message->message) == '') {
return FALSE;
}
$xmlrpc_message->_parser = xml_parser_create();
// Set XML parser to take the case of tags into account.
xml_parser_set_option($xmlrpc_message->_parser, XML_OPTION_CASE_FOLDING, FALSE);
// Set XML parser callback functions
xml_set_element_handler($xmlrpc_message->_parser, array('MollomPlugin', 'xmlrpc_message_tag_open'), array('MollomPlugin', 'xmlrpc_message_tag_close'));
xml_set_character_data_handler($xmlrpc_message->_parser, array('MollomPlugin', 'xmlrpc_message_cdata'));
$this->xmlrpc_message_set($xmlrpc_message);
if (!xml_parse($xmlrpc_message->_parser, $xmlrpc_message->message)) {
return FALSE;
}
xml_parser_free($xmlrpc_message->_parser);
// Grab the error messages, if any
$xmlrpc_message = $this->xmlrpc_message_get();
if ($xmlrpc_message->messagetype == 'fault') {
$xmlrpc_message->fault_code = $xmlrpc_message->params[0]['faultCode'];
$xmlrpc_message->fault_string = $xmlrpc_message->params[0]['faultString'];
}
return TRUE;
}
/**
* Store a copy of the $xmlrpc_message object temporarily.
*
* @param $value
* Object
* @return
* The most recently stored $xmlrpc_message
*/
function xmlrpc_message_set($value = NULL) {
static $xmlrpc_message;
if ($value) {
$xmlrpc_message = $value;
}
return $xmlrpc_message;
}
function xmlrpc_message_get() {
return $this->xmlrpc_message_set();
}
function xmlrpc_message_tag_open($parser, $tag, $attr) {
$xmlrpc_message = $this->xmlrpc_message_get();
$xmlrpc_message->current_tag_contents = '';
$xmlrpc_message->last_open = $tag;
switch ($tag) {
case 'methodCall':
case 'methodResponse':
case 'fault':
$xmlrpc_message->messagetype = $tag;
break;
// Deal with stacks of arrays and structs
case 'data':
$xmlrpc_message->array_structs_types[] = 'array';
$xmlrpc_message->array_structs[] = array();
break;
case 'struct':
$xmlrpc_message->array_structs_types[] = 'struct';
$xmlrpc_message->array_structs[] = array();
break;
}
$this->xmlrpc_message_set($xmlrpc_message);
}
function xmlrpc_message_cdata($parser, $cdata) {
$xmlrpc_message = $this->xmlrpc_message_get();
$xmlrpc_message->current_tag_contents .= $cdata;
$this->xmlrpc_message_set($xmlrpc_message);
}
function xmlrpc_message_tag_close($parser, $tag) {
$xmlrpc_message = $this->xmlrpc_message_get();
$value_flag = FALSE;
switch ($tag) {
case 'int':
case 'i4':
$value = (int)trim($xmlrpc_message->current_tag_contents);
$value_flag = TRUE;
break;
case 'double':
$value = (double)trim($xmlrpc_message->current_tag_contents);
$value_flag = TRUE;
break;
case 'string':
$value = $xmlrpc_message->current_tag_contents;
$value_flag = TRUE;
break;
case 'dateTime.iso8601':
$value = xmlrpc_date(trim($xmlrpc_message->current_tag_contents));
// $value = $iso->getTimestamp();
$value_flag = TRUE;
break;
case 'value':
// If no type is indicated, the type is string
// We take special care for empty values
if (trim($xmlrpc_message->current_tag_contents) != '' || (isset($xmlrpc_message->last_open) && ($xmlrpc_message->last_open == 'value'))) {
$value = (string)$xmlrpc_message->current_tag_contents;
$value_flag = TRUE;
}
unset($xmlrpc_message->last_open);
break;
case 'boolean':
$value = (boolean)trim($xmlrpc_message->current_tag_contents);
$value_flag = TRUE;
break;
case 'base64':
$value = base64_decode(trim($xmlrpc_message->current_tag_contents));
$value_flag = TRUE;
break;
// Deal with stacks of arrays and structs
case 'data':
case 'struct':
$value = array_pop($xmlrpc_message->array_structs );
array_pop($xmlrpc_message->array_structs_types);
$value_flag = TRUE;
break;
case 'member':
array_pop($xmlrpc_message->current_struct_name);
break;
case 'name':
$xmlrpc_message->current_struct_name[] = trim($xmlrpc_message->current_tag_contents);
break;
case 'methodName':
$xmlrpc_message->methodname = trim($xmlrpc_message->current_tag_contents);
break;
}
if ($value_flag) {
if (count($xmlrpc_message->array_structs ) > 0) {
// Add value to struct or array
if ($xmlrpc_message->array_structs_types[count($xmlrpc_message->array_structs_types)-1] == 'struct') {
// Add to struct
$xmlrpc_message->array_structs [count($xmlrpc_message->array_structs )-1][$xmlrpc_message->current_struct_name[count($xmlrpc_message->current_struct_name)-1]] = $value;
}
else {
// Add to array
$xmlrpc_message->array_structs [count($xmlrpc_message->array_structs )-1][] = $value;
}
}
else {
// Just add as a parameter
$xmlrpc_message->params[] = $value;
}
}
if (!in_array($tag, array("data", "struct", "member"))) {
$xmlrpc_message->current_tag_contents = '';
}
$this->xmlrpc_message_set($xmlrpc_message);
}
/**
* Construct an object representing an XML-RPC request
*
* @param $method
* The name of the method to be called
* @param $args
* An array of parameters to send with the method.
* @return
* Object
*/
function xmlrpc_request($method, $args) {
$xmlrpc_request = new stdClass();
$xmlrpc_request->method = $method;
$xmlrpc_request->args = $args;
$xmlrpc_request->xml = <<<EOD
<?xml version="1.0"?>
<methodCall>
<methodName>{$xmlrpc_request->method}</methodName>
<params>
EOD;
foreach ($xmlrpc_request->args as $arg) {
$xmlrpc_request->xml .= '<param><value>';
$v = $this->xmlrpc_value($arg);
$xmlrpc_request->xml .= $this->xmlrpc_value_get_xml($v);
$xmlrpc_request->xml .= "</value></param>\n";
}
$xmlrpc_request->xml .= '</params></methodCall>';
return $xmlrpc_request;
}
function xmlrpc_error($code = NULL, $message = NULL, $reset = FALSE) {
static $xmlrpc_error;
if (isset($code)) {
$xmlrpc_error = new stdClass();
$xmlrpc_error->is_error = TRUE;
$xmlrpc_error->code = $code;
$xmlrpc_error->message = $message;
}
elseif ($reset) {
$xmlrpc_error = NULL;
}
return $xmlrpc_error;
}
function xmlrpc_error_get_xml($xmlrpc_error) {
return <<<EOD
<methodResponse>
<fault>
<value>
<struct>
<member>
<name>faultCode</name>
<value><int>{$xmlrpc_error->code}</int></value>
</member>
<member>
<name>faultString</name>
<value><string>{$xmlrpc_error->message}</string></value>
</member>
</struct>
</value>
</fault>
</methodResponse>
EOD;
}
function xmlrpc_date($time) {
$xmlrpc_date = new stdClass();
$xmlrpc_date->is_date = TRUE;
// $time can be a PHP timestamp or an ISO one
if (is_numeric($time)) {
$xmlrpc_date->year = gmdate('Y', $time);
$xmlrpc_date->month = gmdate('m', $time);
$xmlrpc_date->day = gmdate('d', $time);
$xmlrpc_date->hour = gmdate('H', $time);
$xmlrpc_date->minute = gmdate('i', $time);
$xmlrpc_date->second = gmdate('s', $time);
$xmlrpc_date->iso8601 = gmdate('Ymd\TH:i:s', $time);
}
else {
$xmlrpc_date->iso8601 = $time;
$time = str_replace(array('-', ':'), '', $time);
$xmlrpc_date->year = substr($time, 0, 4);
$xmlrpc_date->month = substr($time, 4, 2);
$xmlrpc_date->day = substr($time, 6, 2);
$xmlrpc_date->hour = substr($time, 9, 2);
$xmlrpc_date->minute = substr($time, 11, 2);
$xmlrpc_date->second = substr($time, 13, 2);
}
return $xmlrpc_date;
}
function xmlrpc_date_get_xml($xmlrpc_date) {
return '<dateTime.iso8601>'. $xmlrpc_date->year . $xmlrpc_date->month . $xmlrpc_date->day .'T'. $xmlrpc_date->hour .':'. $xmlrpc_date->minute .':'. $xmlrpc_date->second .'</dateTime.iso8601>';
}
function xmlrpc_base64($data) {
$xmlrpc_base64 = new stdClass();
$xmlrpc_base64->is_base64 = TRUE;
$xmlrpc_base64->data = $data;
return $xmlrpc_base64;
}
function xmlrpc_base64_get_xml($xmlrpc_base64) {
return '<base64>'. base64_encode($xmlrpc_base64->data) .'</base64>';
}
/**
* Execute an XML remote procedural call. This is private function; call xmlrpc()
* in common.inc instead of this function.
*
* @return
* A $xmlrpc_message object if the call succeeded; FALSE if the call failed
*/
function _xmlrpc() {
$args = func_get_args();
$url = array_shift($args);
$this->xmlrpc_clear_error();
if (is_array($args[0])) {
$method = 'system.multicall';
$multicall_args = array();
foreach ($args[0] as $call) {
$multicall_args[] = array('methodName' => array_shift($call), 'params' => $call);
}
$args = array($multicall_args);
}
else {
$method = array_shift($args);
}
$xmlrpc_request = $this->xmlrpc_request($method, $args);
$result = $this->http_request($url, array("Content-Type" => "text/xml"), 'POST', $xmlrpc_request->xml);
if ($result->code != 200) {
$this->xmlrpc_error($result->code, $result->error);
return FALSE;
}
$message = $this->xmlrpc_message($result->data);
// Now parse what we've got back
if (!$this->xmlrpc_message_parse($message)) {
// XML error
$this->xmlrpc_error(-32700, t('Parse error. Not well formed'));
return FALSE;
}
// Is the message a fault?
if ($message->messagetype == 'fault') {
$this->xmlrpc_error($message->fault_code, $message->fault_string);
return FALSE;
}
// Message must be OK
return $message->params[0];
}
/**
* Returns the last XML-RPC client error number
*/
function xmlrpc_errno() {
$error = $this->xmlrpc_error();
return ($error != NULL ? $error->code : NULL);
}
/**
* Returns the last XML-RPC client error message
*/
function xmlrpc_error_msg() {
$error = xmlrpc_error();
return ($error != NULL ? $error->message : NULL);
}
/**
* Clears any previous error.
*/
function xmlrpc_clear_error() {
$this->xmlrpc_error(NULL, NULL, TRUE);
}
}
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