First commit

.gitignore

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+.DS_Store
+

FoursquareStrategy.php

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+<?php
+/**
+ * Foursquare strategy for Opauth
+ * 
+ * More information on Opauth: http://opauth.org
+ * 
+ * @copyright    Copyright © 2012 Pocket7878 (http://poketo7878.dip.jp)
+ * @link         http://opauth.org
+ * @package      Opauth.FoursquareStrategy
+ * @license      MIT License
+ */
+
+class FoursquareStrategy extends OpauthStrategy{
+
+	/**
+	 * Compulsory config keys, listed as unassociative arrays
+	 * eg. array('app_id', 'app_secret');
+	 */
+	public $expects = array('client_id', 'client_secret');
+
+	/**
+	 * Optional config keys with respective default values, listed as associative arrays
+	 * eg. array('scope' => 'email');
+	 */
+	public $defaults = array(
+		'redirect_uri' => '{complete_url_to_strategy}int_callback',
+	);
+
+	/**
+	 * Auth request
+	 */
+	public function request(){
+		$url = 'https://foursquare.com/oauth2/authenticate';
+		$params = array(
+			'client_id' => $this->strategy['client_id'],
+			'response_type' => 'code',
+			'redirect_uri' => $this->strategy['redirect_uri']
+		);
+
+		if (!empty($this->strategy['response_type'])) $params['response_type'] = $this->strategy['response_type'];
+
+		$this->clientGet($url, $params);
+	}
+
+	/**
+	 * Internal callback, after Foursquare's OAuth
+	 */
+	public function int_callback(){
+		if (array_key_exists('code', $_GET) && !empty($_GET['code'])){
+			$url = 'https://foursquare.com/oauth2/access_token';
+			$params = array(
+				'client_id' =>$this->strategy['client_id'],
+				'client_secret' => $this->strategy['client_secret'],
+				'grant_type' => 'authorization_code',
+				'redirect_uri'=> $this->strategy['redirect_uri'],
+				'code' => trim($_GET['code'])
+			);
+			$response = $this->serverGet($url, $params, null, $headers);
+
+			$results = json_decode($response);
+
+			if (!empty($results) && isset($results->access_token)){
+				$info = $this->user_info($results->access_token);
+				$user = $info->response->user;
+				$this->auth = array(
+					'provider' => 'Foursquare',
+					'uid' => $user->id,
+					'info' => array(
+						'name' => $user->firstName.$user->lastName,
+						'email' => $user->contact->email,
+						'first_name' => $user->firstName,
+						'last_name'  => $user->lastName,
+						'location' => $user->homeCity,
+						//Cope with new api results
+						'photo' => $user->photo->prefix.'original'.$user->photo->suffix
+					),
+					'credentials' => array(
+						'token' => $results->access_token,
+					),
+					'raw' => $info
+				);
+
+				$this->callback();
+			}
+			else{
+				$error = array(
+					'provider' => 'Foursquare',
+					'code' => 'access_token_error',
+					'message' => 'Failed when attempting to obtain access token',
+					'raw' => $headers
+				);
+
+				$this->errorCallback($error);
+			}
+		}
+		else{
+			$error = array(
+				'provider' => 'Foursquare',
+				'code' => $_GET['error'],
+				'message' => $_GET['error_description'],
+				'raw' => $_GET
+			);
+
+			$this->errorCallback($error);
+		}
+	}
+
+	/**
+	 * Queries Facebook Graph API for user info
+	 *
+	 * @param string $access_token 
+	 * @return array Parsed JSON results
+	 */
+	private function user_info($oauth_token){
+		$info = $this->serverGet('https://api.foursquare.com/v2/users/self', 
+					array('oauth_token' => $oauth_token,'v'=>date("Ymd",time())) , null, $headers);
+		if (!empty($info)){
+			$res = json_decode($info);
+			if($res->meta->code == 200) {
+				return $res;
+			}
+			else {
+				$error = array(
+					'provider' => 'Foursquare',
+					'code' => 'user_info_error',
+					'message' => 'Failed when attempting to get user information.',
+					'raw' => array(
+						'response' => $info,
+						'headers' => $headers
+					)
+				);
+				$this->errorCallback($error);
+			}
+		}
+		else{
+			$error = array(
+				'provider' => 'Foursquare',
+				'code' => 'user_info_error',
+				'message' => 'Failed when attempting to query for user information',
+				'raw' => array(
+					'response' => $info,
+					'headers' => $headers
+				)
+			);
+
+			$this->errorCallback($error);
+		}
+		}
+}

README.md

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+Opauth-Facebook
+=============
+[Opauth][1] strategy for Foursquare authentication.
+
+Implemented based on https://developer.foursquare.com/overview/auth
+
+Getting started
+----------------
+1. Install Opauth-Foursquare:
+   ```bash
+   cd path_to_opauth/Strategy
+   git clone git://github.com/uzyn/opauth-facebook.git Facebook
+   ```
+
+2. Create Facebook application at https://developers.facebook.com/apps/
+   - Remember to enter App Domains
+   - "Website with Facebook Login" must be checked, but for "Site URL", you can enter any landing URL.
+
+3. Configure Opauth-Facebook strategy with at least `App ID` and `App Secret`.
+
+4. Direct user to `http://path_to_opauth/facebook` to authenticate
+
+Strategy configuration
+----------------------
+
+Required parameters:
+
+```php
+<?php
+'Facebook' => array(
+	'app_id' => 'YOUR APP ID',
+	'app_secret' => 'YOUR APP SECRET'
+)
+```
+
+Even though `scope` is an optional configuration parameter for Opauth-Facebook, for most cases you would like to explicitly define it. It should be defined in a comma-separated string. 
+
+Refer to [Facebook Permissions Reference](https://developers.facebook.com/docs/authentication/permissions/) for list of valid permissions..
+
+License
+---------
+Opauth-Facebook is MIT Licensed  
+Copyright © 2012 U-Zyn Chua (http://uzyn.com)
+
+[1]: https://github.com/uzyn/opauth

composer.json

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+{
+	"name": "opauth/forsquare",
+	"description": "Foursquare strategy for Opauth",
+	"keywords": ["authentication","auth","foursquare"],
+	"homepage": "http://opauth.org",
+	"license": "MIT",
+	"authors": [
+		{
+			"name": "Masato Sogame (Pocket7878)",
+			"email": "poketo7878@gmail.com",
+			"homepage": "http://poketo7878.dip.jp"
+		}
+	],
+	"require": {
+		"php": ">=5.2.0",
+		"opauth/opauth": ">=0.2.0"
+	},
+	"autoload": {
+		"psr-0": {
+			"": "."
+		}
+	}
+}