initial commit

think.greaterchiangmai.com/public/revolution/php/twitter/connection/Application.php

@@ -0,0 +1,80 @@
+<?php
+namespace TwitterPhp\Connection;
+
+use TwitterPhp\RestApiException;
+
+class Application extends Base
+{
+    /**
+     * @var string
+     */
+    private $_consumerKey;
+
+    /**
+     * @var string
+     */
+    private $_consumerSecret;
+
+    /**
+     * @var string
+     */
+    private $_bearersToken = null;
+
+    /**
+     * @param string $consumerKey
+     * @param string $consumerSecret
+     */
+    public function __construct($consumerKey,$consumerSecret)
+    {
+        $this->_consumerKey = $consumerKey;
+        $this->_consumerSecret = $consumerSecret;
+    }
+
+    /**
+     * @param string $url
+     * @param array $parameters
+     * @param $method
+     * @return array
+     */
+    protected function _buildHeaders($url,array $parameters = null,$method)
+    {
+        return $headers = array(
+                    "Authorization: Bearer " . $this->_getBearerToken()
+                );
+    }
+
+    /**
+     * Get Bearer token
+     *
+     * @link https://dev.twitter.com/docs/auth/application-only-auth
+     *
+     * @throws \TwitterPhp\RestApiException
+     * @return string
+     */
+    private function _getBearerToken() {
+        if (!$this->_bearersToken) {
+            $token = urlencode($this->_consumerKey) . ':' . urlencode($this->_consumerSecret);
+            $token = base64_encode($token);
+
+            $headers = array(
+                "Authorization: Basic " . $token
+            );
+
+            $options = array (
+                CURLOPT_URL => self::TWITTER_API_AUTH_URL,
+                CURLOPT_HTTPHEADER => $headers,
+                CURLOPT_POST => 1,
+                CURLOPT_POSTFIELDS => "grant_type=client_credentials"
+            );
+
+            $response = $this->_callApi($options);
+
+            if (isset($response["token_type"]) && $response["token_type"] == 'bearer') {
+                $this->_bearersToken = $response["access_token"];
+            } else {
+                throw new RestApiException('Error while getting access token');
+            }
+        }
+        return $this->_bearersToken;
+    }
+}