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<?php

class Mandrill_Exception extends Exception {}

class Mandrill {
    const API_VERSION = '1.0';    
    const END_POINT = 'https://mandrillapp.com/api/';
    
    var $api;
    var $output;
    
    // PHP 5.0
    function __construct($api) {
        if ( empty($api) ) throw new Mandrill_Exception('Invalid API key');
        try {
        
            $response = $this->request('users/ping2', array( 'key' => $api ) );        
            if ( !isset($response['PING']) || $response['PING'] != 'PONG!' ) throw new Mandrill_Exception('Invalid API key');
            
            $this->api = $api;
            
        } catch ( Exception $e ) {
            throw new Mandrill_Exception($e->getMessage());
        }
    }
    
    // PHP 4.0
    function Mandrill($api) { $this->__construct($api); }
    
    /**
	 * Work horse. Every API call use this function to actually make the request to Mandrill's servers.
	 *
	 * @link https://mandrillapp.com/api/docs/
	 *
	 * @param string $method API method name
	 * @param array $args query arguments
	 * @param string $http GET or POST request type
	 * @param string $output API response format (json,php,xml,yaml). json and xml are decoded into arrays automatically.
	 * @return array|string|Mandrill_Exception
	 */
	function request($method, $args = array(), $http = 'POST', $output = 'json') {
		if( !isset($args['key']) )
			$args['key'] = $this->api;

$this->output = $output;
        
		$api_version = self::API_VERSION;
		$dot_output = ('json' == $output) ? '' : ".{$output}";

$url = self::END_POINT . "{$api_version}/{$method}{$dot_output}";

switch ($http) {

case 'GET':
                //some distribs change arg sep to &amp; by default
                $sep_changed = false;
                if (ini_get("arg_separator.output")!="&"){
                    $sep_changed = true;
                    $orig_sep = ini_get("arg_separator.output");
                    ini_set("arg_separator.output", "&");
                }

$url .= '?' . http_build_query($args);
				
                if ($sep_changed){
                    ini_set("arg_separator.output", $orig_sep);
                }
                
				$response = $this->http_request($url, array(),'GET');
				break;

case 'POST':
				$response = $this->http_request($url, $args, 'POST');
				break;

default:
				throw new Mandrill_Exception('Unknown request type');
		}

$response_code  = $response['header']['http_code'];
		$body           = $response['body'];

switch ($output) {
			
			case 'json':

$body = json_decode($body, true);
				break;

case 'php':

$body = unserialize($body);
				break;
		}

if( 200 == $response_code ) {
			return $body;
		} else {
			if( !is_array( $body ) ) {
				$code = 'Unknown';
				$message = 'Unknown';
			} else {
				$code = 'Unknown' ? !array_key_exists('code', $body) : $body['code'];
				$message = 'Unknown' ? !array_key_exists('message', $body) : $body['message'];
			}

error_log("wpMandrill Error: Error {$code}: {$message}");
			throw new Mandrill_Exception("wpMandrill Error: {$code}: {$message}", $response_code);

}
	}

/**
	 * @link https://mandrillapp.com/api/docs/users.html#method=ping
	 *
	 * @return array|Mandrill_Exception
	 */
	function users_ping() {

return $this->request('users/ping');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/users.html#method=info
	 *
	 * @return array|Mandrill_Exception
	 */
	function users_info() {

return $this->request('users/info');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/users.html#method=senders
	 *
	 * @return array|Mandrill_Exception
	 */
	function users_senders() {

return $this->request('users/senders');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/users.html#method=disable-sender
	 *
	 * @return array|Mandrill_Exception
	 */
	function users_disable_sender($domain) {

return $this->request('users/disable-senders', array('domain' => $domain) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/users.html#method=verify-sender
	 *
	 * @return array|Mandrill_Exception
	 */
	function users_verify_sender($email) {

return $this->request('users/verify-senders', array('domain' => $email) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/senders.html#method=domains
	 *
	 * @return array|Mandrill_Exception
	 */
	function senders_domains() {

return $this->request('senders/domains');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/senders.html#method=list
	 *
	 * @return array|Mandrill_Exception
	 */
	function senders_list() {

return $this->request('senders/list');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/senders.html#method=info
	 *
	 * @return array|Mandrill_Exception
	 */
	function senders_info($email) {

return $this->request('senders/info', array( 'address' => $email) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/senders.html#method=time-series
	 *
	 * @return array|Mandrill_Exception
	 */
	function senders_time_series($email) {

return $this->request('senders/time-series', array( 'address' => $email) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/tags.html#method=list
	 *
	 * @return array|Mandrill_Exception
	 */
	function tags_list() {

return $this->request('tags/list');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/tags.html#method=info
	 *
	 * @return array|Mandrill_Exception
	 */
	function tags_info($tag) {

return $this->request('tags/info', array( 'tag' => $tag) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/tags.html#method=time-series
	 *
	 * @return array|Mandrill_Exception
	 */
	function tags_time_series($tag) {

return $this->request('tags/time-series', array( 'tag' => $tag) );
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/tags.html#method=all-time-series
	 *
	 * @return array|Mandrill_Exception
	 */
	function tags_all_time_series() {

return $this->request('tags/all-time-series');
	}
	
	/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=add
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_add($name, $code) {

return $this->request('templates/add', array('name' => $name, 'code' => $code) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=update
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_update($name, $code) {

return $this->request('templates/update', array('name' => $name, 'code' => $code) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=delete
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_delete($name) {

return $this->request('templates/delete', array('name' => $name) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=info
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_info($name) {

return $this->request('templates/info', array('name' => $name) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=list
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_list() {

return $this->request('templates/list');
	}

/**
	 * @link https://mandrillapp.com/api/docs/templates.html#method=time-series
	 *
	 * @return array|Mandrill_Exception
	 */
	function templates_time_series($name) {

return $this->request('templates/time-series', array('name' => $name) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/webhooks.html#method=add
	 *
	 * @return array|Mandrill_Exception
	 */
	function webhooks_add($url, $events) {

return $this->request('webhooks/add', array('url' => $url, 'events' => $events) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/webhooks.html#method=update
	 *
	 * @return array|Mandrill_Exception
	 */
	function webhooks_update($url, $events) {

return $this->request('webhooks/update', array('url' => $url, 'events' => $events) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/webhooks.html#method=delete
	 *
	 * @return array|Mandrill_Exception
	 */
	function webhooks_delete($id) {

return $this->request('webhooks/delete', array('id' => $id) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/webhooks.html#method=info
	 *
	 * @return array|Mandrill_Exception
	 */
	function webhooks_info($id) {

return $this->request('webhooks/info', array('id' => $id) );
	}

/**
	 * @link https://mandrillapp.com/api/docs/webhooks.html#method=list
	 *
	 * @return array|Mandrill_Exception
	 */
	function webhooks_list() {
		return $this->request('webhooks/list');
	}

/**
	 * @link https://mandrillapp.com/api/docs/messages.html#method=search
	 *
	 * @return array|Mandrill_Exception
	 */
	function messages_search($query, $date_from = '', $date_to = '', $tags = array(), $senders = array(), $limit = 100) {
		return $this->request('messages/search', compact('query', 'date_from', 'date_to', 'tags', 'senders', 'limit'));
	}

/**
	 * @link https://mandrillapp.com/api/docs/messages.html#method=send
	 *
	 * @return array|Mandrill_Exception
	 */
	function messages_send($message) {
		$async = $message['async'];
		$ip_pool = $message['ip_pool'];
		$send_at = $message['send_at'];
		
		return $this->request('messages/send', array('message' => $message, 'async' => $async, 'ip_pool' => $ip_pool, 'send_at' => $send_at) );
	}
 
	/**
	 * @link https://mandrillapp.com/api/docs/messages.html#method=send-template
	 *
	 * @return array|Mandrill_Exception
	 */
	function messages_send_template($template_name, $template_content, $message) {
		$async = $message['async'];
		$ip_pool = $message['ip_pool'];
		$send_at = $message['send_at'];
		
		return $this->request('messages/send-template', compact('template_name', 'template_content','message', 'async', 'ip_pool', 'send_at') );
	}

function http_request($url, $fields = array(), $method = 'POST') {

if ( !in_array( $method, array('POST','GET') ) ) $method = 'POST';
        if ( !isset( $fields['key']) ) $fields['key'] = $this->api;

//some distribs change arg sep to &amp; by default
        $sep_changed = false;
        if (ini_get("arg_separator.output")!="&"){
            $sep_changed = true;
            $orig_sep = ini_get("arg_separator.output");
            ini_set("arg_separator.output", "&");
        }

$fields = is_array($fields) ? http_build_query($fields) : $fields;
        
        if ($sep_changed) {
            ini_set("arg_separator.output", $orig_sep);
        }
        
        $useragent = wpMandrill::getUserAgent();
        
        if( function_exists('curl_init') && function_exists('curl_exec') ) {

set_time_limit(2 * 60);

$ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, $url);
                
                curl_setopt($ch, CURLOPT_POST, $method == 'POST');
                
                curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
                
				curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);	// @Bruno Braga:
				curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);	//	Thanks for the hack!
				curl_setopt($ch, CURLOPT_USERAGENT,$useragent);
                curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
                curl_setopt($ch, CURLOPT_HEADER, false);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2 * 60 * 1000);
                
                $response   = curl_exec($ch);
                $info       = curl_getinfo($ch);
                $error      = curl_error($ch);
                
            curl_close($ch);
            
        } elseif( function_exists( 'fsockopen' ) ) {
	        $parsed_url = parse_url($url);

$host = $parsed_url['host'];
	        if ( isset($parsed_url['path']) ) {
		        $path = $parsed_url['path'];
	        } else {
		        $path = '/';
	        }

$params = '';
            if (isset($parsed_url['query'])) {
                $params = $parsed_url['query'] . '&' . $fields;
            } elseif ( trim($fields) != '' ) {
                $params = $fields;
            }

if (isset($parsed_url['port'])) {
		        $port = $parsed_url['port'];
	        } else {
		        $port = ($parsed_url['scheme'] == 'https') ? 443 : 80;
	        }

$response = false;

$errno    = '';
	        $errstr   = '';
            ob_start();
            $fp = fsockopen( 'ssl://'.$host, $port, $errno, $errstr, 5 );

if( $fp !== false ) {
                stream_set_timeout($fp, 30);
                
                $payload = "$method $path HTTP/1.0\r\n" .
		            "Host: $host\r\n" . 
		            "Connection: close\r\n"  .
                	"User-Agent: $useragent\r\n" .
                    "Content-type: application/x-www-form-urlencoded\r\n" .
                    "Content-length: " . strlen($params) . "\r\n" .
                    "Connection: close\r\n\r\n" .
                    $params;
                fwrite($fp, $payload);
                stream_set_timeout($fp, 30);
                
                $info = stream_get_meta_data($fp);
                while ((!feof($fp)) && (!$info["timed_out"])) {
                    $response .= fread($fp, 4096);
                    $info = stream_get_meta_data($fp);
                }
                
                fclose( $fp );
                ob_end_clean();
                
                list($headers, $response) = explode("\r\n\r\n", $response, 2);
				
    	        $info = array('http_code' => 200);
            } else {
                ob_end_clean();
    	        $info = array('http_code' => 500);
    	        throw new Exception($errstr,$errno);
            }
            $error = '';
        } else {
            throw new Mandrill_Exception("No valid HTTP transport found", -99);
        }
        
        return array('header' => $info, 'body' => $response, 'error' => $error);
    }
    
    static function getAttachmentStruct($path) {
        
        $struct = array();
        
        try {
            
            if ( !@is_file($path) ) throw new Exception($path.' is not a valid file.');

$filename = basename($path);
            
            if ( !function_exists('get_magic_quotes') ) {
                function get_magic_quotes() { return false; }
            }
            if ( !function_exists('set_magic_quotes') ) {
                function set_magic_quotes($value) { return true;}
            }
            if ( !function_exists('get_magic_quotes_runtime') ) {
                function get_magic_quotes_runtime() { return false; }
            }
            if ( !function_exists('set_magic_quotes_runtime') ) {
                function set_magic_quotes_runtime($value) { return true; }
            }
            
            $file_buffer  = file_get_contents($path);
            $file_buffer  = chunk_split(base64_encode($file_buffer), 76, "\n");
            
            $mime_type = '';
			if ( function_exists('finfo_open') && function_exists('finfo_file') ) {
                $finfo = finfo_open(FILEINFO_MIME_TYPE);
                $mime_type = finfo_file($finfo, $path);
            } elseif ( function_exists('mime_content_type') ) {
                $mime_type = mime_content_type($path);
            }

if ( !empty($mime_type) ) $struct['type']     = $mime_type;
            $struct['name']     = $filename;
            $struct['content']  = $file_buffer;

} catch (Exception $e) {
            throw new Mandrill_Exception('Error creating the attachment structure: '.$e->getMessage());
        }
        
        return $struct;
    }
    
    static function isValidContentType($ct) {
        // Now Mandrill accepts any content type. 
        return true;
    }
    
    static function getValidContentTypes() {
        return array(
                  'image/',
                  'text/',
                  'application/pdf',
        		  'audio/',
        		  'video/'
              );
    }
}