Add Instagram support

src/AdamWathan/EloquentOAuth/EloquentOAuthServiceProvider.php

@@ -10,6 +10,7 @@ class EloquentOAuthServiceProvider extends ServiceProvider {
         'github' => 'AdamWathan\\EloquentOAuth\\Providers\\GitHubProvider',
         'google' => 'AdamWathan\\EloquentOAuth\\Providers\\GoogleProvider',
         'linkedin' => 'AdamWathan\\EloquentOAuth\\Providers\\LinkedInProvider',
+        'instagram' => 'AdamWathan\\EloquentOAuth\\Providers\\InstagramProvider',
     );
 
     /**

src/AdamWathan/EloquentOAuth/Providers/InstagramProvider.php

@@ -0,0 +1,84 @@
+<?php namespace AdamWathan\EloquentOAuth\Providers;
+
+use AdamWathan\EloquentOAuth\Exceptions\InvalidAuthorizationCodeException;
+
+class InstagramProvider extends Provider
+{
+	protected $authorizeUrl = "https://api.instagram.com/oauth/authorize";
+	protected $accessTokenUrl = "https://api.instagram.com/oauth/access_token";
+	protected $userDataUrl = "https://api.instagram.com/v1/users/self";
+	protected $scope = array(
+        'basic',
+	);
+
+	protected function getAuthorizeUrl()
+	{
+		return $this->authorizeUrl;
+	}
+
+	protected function getAccessTokenBaseUrl()
+	{
+		return $this->accessTokenUrl;
+	}
+
+	protected function getUserDataUrl()
+	{
+		return $this->userDataUrl;
+	}
+
+	protected function compileScopes()
+	{
+		return implode('+', $this->scope);
+	}
+
+	protected function parseTokenResponse($response)
+	{
+		$data = json_decode($response);
+		if (! isset($data->access_token)) {
+			throw new InvalidAuthorizationCodeException;
+		}
+		return $data->access_token;
+	}
+
+	protected function requestUserData()
+	{
+		$userData = parent::requestUserData();
+		return $userData;
+	}
+
+	protected function parseUserDataResponse($response)
+	{
+		$data = json_decode($response, true);
+		return $data['data'];
+	}
+
+	protected function userId()
+	{
+		return $this->getProviderUserData('id');
+	}
+
+	protected function nickname()
+	{
+		return $this->getProviderUserData('username');
+	}
+
+	protected function firstName()
+	{
+		return strstr($this->getProviderUserData('full_name'), ' ', true);
+	}
+
+	protected function lastName()
+	{
+		return substr(strstr($this->getProviderUserData('full_name'), ' '), 1);
+	}
+
+	protected function imageUrl()
+	{
+		return $this->getProviderUserData('profile_picture');
+	}
+
+	protected function email()
+	{
+		return null; // Impossible to get email from Instagram
+	}
+}