<?php
/**
* GravatarRPC
* @package Gravatar
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @author Wouter van Vliet / Interpotential <wouter@interpotential.com>
* @see http://www.interpotential.com
* @see http://www.wordpress.com
* @version 1.0 (revision $Rev: 435 $)
* @copyright Copyright (c) 2009, Interpotential
* @see http://en.gravatar.com/site/implement/xmlrpc
*/
/**
* Wrapper class for the Gravatar XMLRPC api
* Encapulates all methods from the api
* Usage:
* <code>
* <?php
* $api = new GravatarRPC(1234, 'email@example.com');
* $api->test() // test the api
* $hasGravatar = $api->exists('wouter@interpotential.com');
* // and so on
* ?>
* </code>
* It requires the XML_RPC class from PEAR, which can be found on pear.php.net:
* http://pear.php.net/package/XML_RPC
* though usually just by calling: sudo pear install XML_RPC, or using a PEAR
* webinstaller.
*
* @package Gravatar
*/
class GravatarRPC {
protected $client;
protected $email;
protected $apikey;
/**
* Constructor
* @param string The apikey belonging to the account we're
* working with. You can get your apikey on the edit profile page
* on wordpress.com
* @param string The email address the apikey matches with
*/
public function __construct($apikey, $email) {
require_once 'XML/RPC.php';
$this->apikey = $apikey;
$this->email = strtolower(trim($email));
}
/**
* Construct a client object
*/
protected function client() {
if ($this->client === null) {
$this->client = new XML_RPC_Client('/xmlrpc?user='.md5($this->email), 'secure.gravatar.com', 443);
}
return $this->client;
}
/**
* Call a method
* @param string Method name, automatically gets "grav." prepended to it
* @param Array List of named arguments
*/
protected function call($method, $params = Array()) {
#$params = array_map('XML_RPC_encode', $params);
$params = array_merge($params, Array(
'apikey' => $this->apikey,
));
$msg = new XML_RPC_Message("grav.$method", Array(XML_RPC_encode($params)));
$response = $this->client()->send($msg);
if (!$response->faultCode()) {
$value = $response->value();
$value = XML_RPC_decode($value);
return $value;
} else {
throw new GravatarException($response->faultString(), $response->faultCode());
}
}
/**
* Check whether a hash has a gravatar
* @param Array List of email addresses to check
*/
public function exists($emails = Array()) {
if (!is_array($emails)) {
$emails = Array($emails);
}
$emails = array_map(function($mail) {
return strtolower(md5(strtolower(trim($mail))));
}, $emails);
$params = Array($emails);
return $this->call('exists', Array('hashes' => $emails));
}
/**
* Return an array of userimages for this account
*/
public function userimages() {
$resp = $this->call('userimages');
foreach($resp as $hash => $info) {
$resp[$hash] = (object)Array(
'rating' => $info[0],
'url' => $info[1],
);
}
return $resp;
}
/**
* Save binary image data as a userimage for this account
* @param string A data blob or filename to submit as Gravatar
* @param int Rating of this image, 0 = g, 1 = pg, 3 = x
* @param boolean Treat $data as string path to filename, slurp this
* and send it to Gravatar
* @returns mixed boolean(false) on failure, image string on success
*/
public function saveData($data, $rating, $slurp = false) {
$rating = (int)$rating;
if ($rating < 0 || $rating > 3) throw new InvalidArgumentException('Rating should be a number from 0 to 3');
if ($slurp == true) {
if (!is_file($data) || !is_readable($data)) {
throw new InvalidArgumentException('Path provided is not a readable file.');
}
$data = file_get_contents($data);
}
return $this->call('saveData', Array(
'rating' => $rating,
'data' => base64_encode($data),
));
}
/**
* Read an image via its URL and save that as a userimage for this account
* @param string A full url to an image on the internet
* @param int Rating of this image, 0 = g, 1 = pg, 2 = r, 3 = x
* @returns mixed boolean(false) on failure, image string on success
*/
public function saveUrl($url, $rating) {
$rating = (int)$rating;
$url = (string)$url;
if ($rating < 0 || $rating > 3) throw new InvalidArgumentException('Rating should be a number from 0 to 3');
return $this->call('saveUrl', Array(
'rating' => $rating,
'url' => $url,
));
}
/**
* Use a userimage as a gravatar for one of more addresses on this account
* @param string The userimage you wish to use
* @param string|array Single email address as string, or list of
* email addresses to use this image for
* @returns Array List of statusses per email address or single boolean if
* email was supplied as single string
*/
public function useUserimage($image, $email) {
$returnSingle = false;
$image = (string)$image;
if (is_string($email)) {
$returnSingle = strtolower(trim($email));
$email = Array($email);
}
if (!is_array($email)) {
throw new InvalidArgumentException('Email address is not a string or array of email addresses');
}
// give all email addresses in lowercase
$email = array_map(function($e) {
return strtolower(trim($e));
}, $email);
$value = $this->call('useUserimage', Array(
'userimage' => $image,
'addresses' => $email,
));
// if we came with a string, we only want one return value
if ($returnSingle && isset($value[$returnSingle])) {
return $value[$returnSingle];
}
return $value;
}
/**
* Remove the userimage associated with one or more email addresses
* @param string|array Either a string containing one email address, or an
* array containing multiple email addresses for which
* you no longer want to use a gravatar
* @returns Array List of statusses per email address or single boolean if
* email was supplied as single string
*/
public function removeImage($email) {
$returnSingle = false;
if (is_string($email)) {
$returnSingle = strtolower(trim($email));
$email = Array($email);
}
if (!is_array($email)) {
throw new InvalidArgumentException('Email address is not a string or array of email addresses');
}
// give all email addresses in lowercase
$email = array_map(function($e) {
return strtolower(trim($e));
}, $email);
$value = $this->call('removeImage', Array(
'addresses' => $email,
));
// if we came with a string, we only want one return value
if ($returnSingle && isset($value[$returnSingle])) {
return $value[$returnSingle];
}
return $value;
}
/**
* Remove a userimage from the account and any email addresses with which
* it is associated
* @param The userimage you wish to delete
* @return boolean status
*/
public function deleteUserimage($image) {
$value = $this->call('deleteUserimage', Array(
'userimage' => $image,
));
return $value;
}
/**
* Get a list of addresses for this account
*/
public function addresses() {
$resp = array_map(function($info) {
return (object)$info;
}, $this->call('addresses'));
return $resp;
}
/**
* Test the api
*/
public function test() {
return $this->call('test');
}
}
/**
* @package Gravatar
*/
class GravatarException extends Exception { }
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