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namespace ProcessMaker\Services\OAuth2;
/**
* Simple PmPDO storage for all storage types
* based on \OAuth2\Storage\Pdo
*
* @author Erik Amaru Ortiz <aortiz.erik at gmail dot com>
*/
class PmPdo implements \OAuth2\Storage\AuthorizationCodeInterface,
\OAuth2\Storage\AccessTokenInterface,
\OAuth2\Storage\ClientCredentialsInterface,
\OAuth2\Storage\UserCredentialsInterface,
\OAuth2\Storage\RefreshTokenInterface,
\OAuth2\Storage\JwtBearerInterface
{
protected $db;
protected $dbRBAC;
protected $config;
public function __construct($connection, $config = array(), $connectionRBAC = null)
{
if (!$connection instanceof \PDO) {
if (!is_array($connection)) {
throw new \InvalidArgumentException('First argument to OAuth2\Storage\Pdo must be an instance of PDO or a configuration array');
}
if (!isset($connection['dsn'])) {
throw new \InvalidArgumentException('configuration array must contain "dsn"');
}
// merge optional parameters
$connection = array_merge(array(
'username' => null,
'password' => null,
), $connection);
$connection = new \PDO($connection['dsn'], $connection['username'], $connection['password']);
}
$this->db = $connection;
// it's for Pm < 3
if (!is_null($connectionRBAC) &&(!$connectionRBAC instanceof \PDO)) {
if (!is_array($connectionRBAC)) {
throw new \InvalidArgumentException('First argument to OAuth2\Storage\Pdo must be an instance of PDO or a configuration array');
}
if (!isset($connectionRBAC['dsn'])) {
throw new \InvalidArgumentException('configuration array must contain "dsn"');
}
// merge optional parameters
$connectionRBAC = array_merge(array(
'username' => null,
'password' => null,
), $connectionRBAC);
$connectionRBAC = new \PDO($connectionRBAC['dsn'], $connectionRBAC['username'], $connectionRBAC['password']);
}
$this->dbRBAC = $connectionRBAC;
// debugging
$connection->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
$this->config = array_merge(array(
'client_table' => 'OAUTH_CLIENTS',
'access_token_table' => 'OAUTH_ACCESS_TOKENS',
'refresh_token_table' => 'OAUTH_REFRESH_TOKENS',
'code_table' => 'OAUTH_AUTHORIZATION_CODES',
'user_table' => 'RBAC_USERS',
'jwt_table' => 'OAUTH_JWT',
), $config);
}
/* OAuth2_Storage_ClientCredentialsInterface */
public function checkClientCredentials($client_id, $client_secret = null)
{
$stmt = $this->db->prepare(sprintf('SELECT * from %s WHERE CLIENT_ID = :client_id', $this->config['client_table']));
$stmt->execute(compact('client_id'));
$result = self::expandCase($stmt->fetch());
// make this extensible
return $result['client_secret'] == $client_secret;
}
public function getClientDetails($client_id)
{
$stmt = $this->db->prepare(sprintf('SELECT * from %s WHERE CLIENT_ID = :client_id', $this->config['client_table']));
$stmt->execute(compact('client_id'));
return self::expandCase($stmt->fetch());
}
public function checkRestrictedGrantType($client_id, $grant_type)
{
$details = $this->getClientDetails($client_id);
if (isset($details['grant_types'])) {
$grant_types = explode(' ', $details['grant_types']);
return in_array($grant_type, (array) $grant_types);
}
// if grant_types are not defined, then none are restricted
return true;
}
/* OAuth2_Storage_AccessTokenInterface */
public function getAccessToken($access_token)
{
$stmt = $this->db->prepare(sprintf('SELECT * from %s WHERE ACCESS_TOKEN = :access_token', $this->config['access_token_table']));
$token = $stmt->execute(compact('access_token'));
if ($token = self::expandCase($stmt->fetch())) {
// convert date string back to timestamp
$token['expires'] = strtotime($token['expires']);
}
return $token;
}
public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null)
{
//Delete expired Access and Refresh Token
foreach (array($this->config["access_token_table"], $this->config["refresh_token_table"]) as $value) {
$stmt = $this->db->prepare(sprintf("DELETE FROM %s WHERE EXPIRES < %s", $value, "'" . date("Y-m-d H:i:s") . "'"));
$result = $stmt->execute();
}
// convert expires to datestring
$expires = date('Y-m-d H:i:s', $expires);
// if it exists, update it.
if ($this->getAccessToken($access_token)) {
$stmt = $this->db->prepare(sprintf('UPDATE %s SET CLIENT_ID=:client_id, EXPIRES=:expires, USER_ID=:user_id, SCOPE=:scope WHERE ACCESS_TOKEN=:access_token', $this->config['access_token_table']));
} else {
$stmt = $this->db->prepare(sprintf('INSERT INTO %s (ACCESS_TOKEN, CLIENT_ID, EXPIRES, USER_ID, SCOPE) VALUES (:access_token, :client_id, :expires, :user_id, :scope)', $this->config['access_token_table']));
}
return $stmt->execute(compact('access_token', 'client_id', 'user_id', 'expires', 'scope'));
}
/* OAuth2_Storage_AuthorizationCodeInterface */
public function getAuthorizationCode($code)
{
$stmt = $this->db->prepare(sprintf('SELECT * FROM %s WHERE AUTHORIZATION_CODE = :code', $this->config['code_table']));
$stmt->execute(compact('code'));
if ($code = self::expandCase($stmt->fetch())) {
// convert date string back to timestamp
$code['expires'] = strtotime($code['expires']);
}
return $code;
}
public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null)
{
// convert expires to datestring
$expires = date('Y-m-d H:i:s', $expires);
// if it exists, update it.
if ($this->getAuthorizationCode($code)) {
$stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET CLIENT_ID=:client_id, USER_ID=:user_id, REDIRECT_URI=:redirect_uri, EXPIRES=:expires, SCOPE=:scope where AUTHORIZATION_CODE=:code', $this->config['code_table']));
} else {
$stmt = $this->db->prepare(sprintf('INSERT INTO %s (AUTHORIZATION_CODE, CLIENT_ID, USER_ID, REDIRECT_URI, EXPIRES, SCOPE) VALUES (:code, :client_id, :user_id, :redirect_uri, :expires, :scope)', $this->config['code_table']));
}
return $stmt->execute(compact('code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope'));
}
public function expireAuthorizationCode($code)
{
$stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE AUTHORIZATION_CODE = :code', $this->config['code_table']));
return $stmt->execute(compact('code'));
}
public function expireToken($token)
{
$access_token = new \OauthAccessTokens();
$access_token->load($token);
$stmt = $this->db->prepare(sprintf('UPDATE %s SET EXPIRES=%s WHERE ACCESS_TOKEN=:token', $this->config['access_token_table'], "'".Date('Y-m-d H:i:s',strtotime("-1 minute"))."'"));
return $stmt->execute(compact('token'));
}
public function deleteToken($token)
{
$access_token = new \OauthAccessTokens();
$access_token->load($token);
$stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE ACCESS_TOKEN = :token', $this->config['access_token_table']));
return $stmt->execute(compact("token"));
}
/* OAuth2_Storage_UserCredentialsInterface */
public function checkUserCredentials($username, $password)
{
$RBAC = \RBAC::getSingleton();
$RBAC->initRBAC();
$uid = $RBAC->VerifyLogin($username , $password);
if($uid < 0){
return false;
}
if($uid != ''){
return true;
}
return false;
}
public function getUserDetails($username)
{
return $this->getUser($username);
}
/* OAuth2_Storage_RefreshTokenInterface */
public function getRefreshToken($refresh_token)
{
$stmt = $this->db->prepare(sprintf('SELECT * FROM %s WHERE REFRESH_TOKEN = :refresh_token', $this->config['refresh_token_table']));
$token = $stmt->execute(compact('refresh_token'));
if ($token = self::expandCase($stmt->fetch())) {
// convert expires to epoch time
$token['expires'] = strtotime($token['expires']);
}
return $token;
}
public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null)
{
// convert expires to datestring
$expires = date('Y-m-d H:i:s', $expires);
$stmt = $this->db->prepare(sprintf('INSERT INTO %s (REFRESH_TOKEN, CLIENT_ID, USER_ID, EXPIRES, SCOPE) VALUES (:refresh_token, :client_id, :user_id, :expires, :scope)', $this->config['refresh_token_table']));
return $stmt->execute(compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope'));
}
public function unsetRefreshToken($refresh_token)
{
$stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE REFRESH_TOKEN = :refresh_token', $this->config['refresh_token_table']));
return $stmt->execute(compact('refresh_token'));
}
// plaintext passwords are bad! Override this for your application
protected function checkPassword($user, $password)
{
return $user['USR_PASSWORD'] == \Bootstrap::hashPassword($password);
}
public function getUser($username)
{
$stmt = $this->db->prepare($sql = sprintf('SELECT * FROM %s WHERE USR_USERNAME=:username', $this->config['user_table']));
if (!is_null($this->dbRBAC)) {
$stmt = $this->dbRBAC->prepare($sql = sprintf('SELECT * FROM %s WHERE USR_USERNAME=:username', $this->config['user_table']));
}
$stmt->execute(array('username' => $username));
if (!$userInfo = $stmt->fetch()) {
return false;
}
$userInfo = self::expandCase($userInfo);
// the default behavior is to use "username" as the user_id
return array_merge(array(
'user_id' => $userInfo['USR_UID'] //$username
), $userInfo);
}
public function setUser($username, $password, $firstName = null, $lastName = null)
{
// do not store in plaintext
$password = sha1($password);
// if it exists, update it.
if ($this->getUser($username)) {
$stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET PASSWORD=:password, FIRST_NAME=:firstName, LAST_NAME=:lastName WHERE USERNAME=:username', $this->config['user_table']));
} else {
$stmt = $this->db->prepare(sprintf('INSERT INTO %s (USERNAME, PASSWORD, FIRST_NAME, LAST_NAME) VALUES (:username, :password, :firstName, :lastName)', $this->config['user_table']));
}
return $stmt->execute(compact('username', 'password', 'firstName', 'lastName'));
}
/* OAuth2_Storage_JWTBearerInterface */
public function getClientKey($client_id, $subject)
{
$stmt = $this->db->prepare($sql = sprintf('SELECT PUBLIC_KEY from %s WHERE CLIENT_ID=:client_id AND SUBJECT=:subject', $this->config['jwt_table']));
$stmt->execute(array('client_id' => $client_id, 'subject' => $subject));
return self::expandCase($stmt->fetch());
}
protected static function expandCase($a, $case = CASE_LOWER)
{
if (! is_array($a)) {
return $a;
}
return array_merge($a, array_change_key_case($a, $case));
}
}
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