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phab/src/applications/auth/oauth/provider/base/PhabricatorOAuthProvider.php
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PhabricatorOAuthProvider.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
abstract class PhabricatorOAuthProvider {
const PROVIDER_FACEBOOK = 'facebook';
const PROVIDER_GITHUB = 'github';
const PROVIDER_GOOGLE = 'google';
const PROVIDER_PHABRICATOR = 'phabricator';
const PROVIDER_DISQUS = 'disqus';
private $accessToken;
abstract public function getProviderKey();
abstract public function getProviderName();
abstract public function isProviderEnabled();
abstract public function isProviderLinkPermanent();
abstract public function isProviderRegistrationEnabled();
abstract public function getClientID();
abstract public function renderGetClientIDHelp();
abstract public function getClientSecret();
abstract public function renderGetClientSecretHelp();
abstract public function getAuthURI();
abstract public function getTestURIs();
/**
* If the provider needs extra stuff in the auth request, return it here.
* For example, Google needs a response_type parameter.
*/
public function getExtraAuthParameters() {
return array();
}
/**
* If the provider supports application login, the diagnostics page can try
* to test it. Most providers do not support this (Facebook does).
*/
public function shouldDiagnoseAppLogin() {
return false;
}
abstract public function getTokenURI();
/**
* Access tokens expire based on an implementation-specific key.
*/
abstract protected function getTokenExpiryKey();
public function getTokenExpiryFromArray(array $data) {
$key = $this->getTokenExpiryKey();
if ($key) {
$expiry_value = idx($data, $key, 0);
if ($expiry_value) {
return time() + $expiry_value;
}
}
return 0;
}
/**
* If the provider needs extra stuff in the token request, return it here.
* For example, Google needs a grant_type parameter.
*/
public function getExtraTokenParameters() {
return array();
}
abstract public function getUserInfoURI();
abstract public function getMinimumScope();
abstract public function setUserData($data);
abstract public function retrieveUserID();
abstract public function retrieveUserEmail();
abstract public function retrieveUserAccountName();
abstract public function retrieveUserProfileImage();
abstract public function retrieveUserAccountURI();
abstract public function retrieveUserRealName();
/**
* Override this if the provider returns the token response as, e.g., JSON
* or XML.
*/
public function decodeTokenResponse($response) {
$data = null;
parse_str($response, $data);
return $data;
}
public function __construct() {
}
/**
* This is where the OAuth provider will redirect the user after the user
* grants Phabricator access.
*/
final public function getRedirectURI() {
$key = $this->getProviderKey();
return PhabricatorEnv::getURI('/oauth/'.$key.'/login/');
}
final public function setAccessToken($access_token) {
$this->accessToken = $access_token;
return $this;
}
final public function getAccessToken() {
return $this->accessToken;
}
/**
* Often used within setUserData to make sure $data is not completely
* junk. More granular validations of data might be necessary depending on
* the provider and are generally encouraged.
*/
final protected function validateUserData($data) {
if (empty($data) || !is_array($data)) {
throw new PhabricatorOAuthProviderException();
}
return true;
}
public static function newProvider($which) {
switch ($which) {
case self::PROVIDER_FACEBOOK:
$class = 'PhabricatorOAuthProviderFacebook';
break;
case self::PROVIDER_GITHUB:
$class = 'PhabricatorOAuthProviderGitHub';
break;
case self::PROVIDER_GOOGLE:
$class = 'PhabricatorOAuthProviderGoogle';
break;
case self::PROVIDER_PHABRICATOR:
$class = 'PhabricatorOAuthProviderPhabricator';
break;
case self::PROVIDER_DISQUS:
$class = 'PhabricatorOAuthProviderDisqus';
break;
default:
throw new Exception('Unknown OAuth provider.');
}
return newv($class, array());
}
public static function getAllProviders() {
$all = array(
self::PROVIDER_FACEBOOK,
self::PROVIDER_GITHUB,
self::PROVIDER_GOOGLE,
self::PROVIDER_PHABRICATOR,
self::PROVIDER_DISQUS,
);
$providers = array();
foreach ($all as $provider) {
$providers[$provider] = self::newProvider($provider);
}
return $providers;
}
}
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