Add searchEmail method in github-api

Author: jerray

lib/Github/Api/User.php

@@ -24,6 +24,13 @@ public function search($username)
         return $response['users'];
     }
 
+    public function searchEmail($email)
+    {
+        $response = $this->get('user/email/'.urlencode($email), array(), array('format'=>'xml'));
+    
+        return $response;
+    }
+
     /**
      * Get extended information about a user by its username
      * http://develop.github.com/p/users.html#getting_user_information

lib/Github/HttpClient.php

@@ -121,11 +121,27 @@ protected function decodeResponse($response, array $options)
             return $response;
         } elseif ('json' === $options['format']) {
             return json_decode($response, true);
+        } elseif ('xml' === $options['format']) {
+            $xml = new SimpleXMLElement($response);
+            return $this->xmlToArray($xml);
         }
 
         throw new Exception(__CLASS__.' only supports json & text format, '.$options['format'].' given.');
     }
 
+    private function xmlToArray($xml)
+    {
+        $array = json_decode(json_encode($xml), TRUE);
+        foreach (array_slice($array, 0) as $key => $value) {
+            if (empty($value)) {
+                $array[$key] = NULL;
+            } elseif (is_array($value)) {
+                $array[$key] = $this->xmlToArray($value);
+            }
+        }
+        return $array;
+    }
+
     /**
      * Change an option value.
      *

modules/service_github_api.php

@@ -144,4 +144,22 @@ public function get_repo_info($url) {
         );
         return $repository;
     }
+
+    public function get_user($email) {
+
+        try {
+            $user = $this->_client->getUserApi()->searchEmail($email);
+        } catch (Exception $e) {
+            $user = null;
+        }
+        return $user;
+    }
+
+    public function get_user_link($email) {
+
+        $user = $this->get_user($email);
+        if ($user) {
+            return $this->_web_root . '/' . $user['login'];
+        }
+    }
 }