Initial commit

lib/PayPal/Rest/ApiContext.php

@@ -0,0 +1,74 @@
+<?php
+namespace PayPal\Rest;
+
+/**
+ * 
+ * Call level parameters such as
+ * request id, credentials etc
+ */
+class ApiContext {
+	
+	/**
+	 * OAuth Credentials to use for this call
+	 * @var PayPal/Api/OAuthTokenCredential
+	 */
+	private $credential;
+	
+	/**
+	 * Unique request id to be used for this call
+	 * The user can either generate one as per application
+	 * needs or let the SDK generate one
+	 * @var string
+	 */
+	private $requestId;
+	
+	
+	/**
+	 * 
+	 */
+	public function getCredential() {
+		return $this->credential;		
+	}
+	
+	public function getrequestId() {
+		if($this->requestId == null) {
+			$this->requestId = $this->generaterequestId();
+		}
+		return $this->requestId;
+	}
+	
+	/**
+	 * 
+	 * @param PayPal/Api/OAuthTokenCredential $credential
+	 * @param string $requestId
+	 */
+	public function __construct($credential, $requestId=null) {
+		$this->credential = $credential;
+		$this->requestId = $requestId;
+	}
+	
+	/**
+	 * Generates a unique per request id that
+	 * can be used to set the PayPal-Request-Id header
+	 * that is used for idemptency
+	 * @return string
+	 */
+	private function generateRequestId() {
+		
+		static $pid = -1;
+		static $addr = -1;
+		
+		if ($pid == -1) {
+			$pid = getmypid();
+		}
+		if ($addr == -1) {
+			if(array_key_exists('SERVER_ADDR', $_SERVER)) {
+				$addr = ip2long($_SERVER['SERVER_ADDR']);
+			} else {
+				$addr  = php_uname('n');
+			}
+		}
+		
+		return $addr . $pid . $_SERVER['REQUEST_TIME'] . mt_rand(0, 0xffff);
+	}
+}

lib/PayPal/Rest/Call.php

@@ -0,0 +1,59 @@
+<?php
+namespace PayPal\Rest;
+
+use PayPal\Auth\OAuthTokenCredential;
+
+use PayPal\Common\UserAgent;
+
+class Call {
+	
+	private $logger;
+	
+	public function __construct() {
+		$this->logger = new \PPLoggingManager(__CLASS__);
+	}
+
+	/**
+	 *
+	 * @param string $path
+	 * @param string $data
+	 * @param PayPal/Rest/ApiContext $apiContext
+	 * @param array $headers
+	 */
+	public function execute($path, $method, $data='', $apiContext, $headers=array()) {
+		$configMgr = \PPConfigManager::getInstance();
+
+		$credential = $apiContext->getCredential();
+		if($credential == NULL) {
+			// Try picking credentials from the config file
+			$credMgr = \PPCredentialManager::getInstance();
+			$credValues = $credMgr->getCredentialObject();
+			if(!is_array($credValues)) {
+				throw new \PPMissingCredentialException("Empty or invalid credentials passed");
+			}
+			$credential = new OAuthTokenCredential($credValues['clientId'], $credValues['clientSecret']);
+		}
+		if($credential == NULL || ! ($credential instanceof OAuthTokenCredential) ) {
+			throw new \PPInvalidCredentialException("Invalid credentials passed");	
+		}	
+			
+		$resourceUrl = rtrim( trim($configMgr->get('service.EndPoint')), '/') . $path;
+		$config = new \PPHttpConfig($resourceUrl, $method);
+		$headers += array(
+			'Content-Type' => 'application/json',
+			'User-Agent' => UserAgent::getValue()	
+		);
+		if(!is_null($credential) && $credential instanceof OAuthTokenCredential) {
+			$headers['Authorization'] = "Bearer " . $credential->getAccessToken();
+		}
+		if($method == 'POST' || $method == 'PUT') {
+			$headers['PayPal-Request-Id'] = $apiContext->getRequestId();
+		}
+		$config->setHeaders($headers);
+		$connection = new \PPHttpConnection($config);
+		$response = $connection->execute($data);
+		$this->logger->fine($response);
+		
+		return $response;
+	}
+}

lib/PayPal/Rest/IResource.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace PayPal\Rest;
+
+interface IResource {
+	
+}