1: <?php
  2: use Guzzle\Common\Event;
  3: use Guzzle\Http\Client;
  4: use Guzzle\Http\Message\EntityEnclosingRequest;
  5: 
  6: require_once 'iGivefirst/Exceptions.php';
  7: require_once 'iGivefirst/Common.php';
  8: require_once 'iGivefirst/Donor.php';
  9: require_once 'iGivefirst/Account.php';
 10: require_once 'iGivefirst/Donation.php';
 11: 
 12: /**
 13:  * Main interface for the iGivefirst Donation API
 14:  */
 15: class iGivefirst {
 16: 
 17:     // Donor interface
 18:     public $donor;
 19:     // Account interface
 20:     public $account;
 21:     // Donation interface
 22:     public $donation;
 23:     
 24:     public $client;
 25:     private $apikey, $apisecret;
 26: 
 27:     private $url_root = 'https://api.igivefirst.com';
 28:     private $url_root_sandbox = 'https://api.igivefirst.mobi';
 29:     
 30:     /**
 31:      * Construct the interface class
 32:      * @param string $apikey Publisher API key
 33:      * @param string $apisecret Publisher API secret
 34:      * @param boolean $sandbox Indicates if the sandbox should be used. Defaults to true
 35:      */
 36:     public function __construct($apikey, $apisecret, $sandbox=true) {
 37:         $this->apikey = $apikey;
 38:         $this->apisecret = $apisecret;
 39:         
 40:         $this->client = new Client($sandbox?$this->url_root_sandbox:$this->url_root);
 41:         $this->client->setUserAgent('iGivefirst-SDK-PHP/1.0.0');
 42:         
 43:         $this->client->getEventDispatcher()->addListener('request.before_send', function (Event $event) {
 44:             $this->signRequest($event['request']);
 45:         }, -1);
 46:         
 47:         $this->donor = new Donor($this);
 48:         $this->account = new Account($this);
 49:         $this->donation = new Donation($this);
 50:     }
 51:     
 52:     public function execute($request) {
 53:         try {
 54:             return $request->send();
 55:         }
 56:         catch(Guzzle\Http\Exception\CurlException $e) {
 57:             throw new iGivefirst_HttpError($e->getError());
 58:         }
 59:         catch(Guzzle\Http\Exception\ClientErrorResponseException $e) {
 60:             $r = $e->getResponse();
 61: 
 62:             switch($r->getStatusCode()) {
 63:                 case 401:
 64:                     throw new iGivefirst_AuthenticationError();
 65:                     break;
 66:                 case 404:
 67:                     throw new iGivefirst_ObjectNotFound($r);
 68:                     break;
 69:                 case 405:
 70:                     throw new iGivefirst_ObjectAlreadyExists($r);
 71:                     break;
 72:                 default:
 73:                     throw new iGivefirst_HttpError($r->getMessage());
 74:             }
 75:         }
 76:         catch(Guzzle\Http\Exception\ServerErrorResponseException $e) {
 77:             $r = $e->getResponse();
 78:             throw new iGivefirst_HttpError($r->getStatusCode());
 79:         }
 80:     }
 81:     
 82:     private function signRequest($request) {
 83:         $date = gmdate("D, d M Y H:i:s O", time());
 84:         $method = $request->getMethod();
 85:         $body = '';
 86:         $content_type = $request->getHeader('Content-Type');
 87:         $u = $request->getUrl(true)->normalizePath()->getPath();
 88:         
 89:         if ($request instanceof EntityEnclosingRequest) {
 90:             $request_body = $request->getBody();
 91:             if ($request_body)
 92:                 $body = $request_body->getContentMd5();
 93:         }
 94: 
 95:         $hmac = base64_encode(hash_hmac('sha1', "$method\n$body\n$content_type\n$date\n$u", $this->apisecret, true));
 96:         $auth = "{$this->apikey}:$hmac";
 97:         
 98:         $request->setHeader('Date', $date);
 99:         $request->setHeader('Authorization', 'IGF_HMAC_SHA1 ' . $auth);
100:     }
101: }
102: ?>
103: