/**
* This is a convenience function that can be used to get the token, which can then
* be passed to getAccessTokenData(). The constraints specified by the draft are
* attempted to be adheared to in this method.
*
* As per the Bearer spec (draft 8, section 2) - there are three ways for a client
* to specify the bearer token, in order of preference: Authorization Header,
* POST and GET.
*
* NB: Resource servers MUST accept tokens via the Authorization scheme
* (http://tools.ietf.org/html/rfc6750#section-2).
*
* @todo Should we enforce TLS/SSL in this function?
*
* @see http://tools.ietf.org/html/rfc6750#section-2.1
* @see http://tools.ietf.org/html/rfc6750#section-2.2
* @see http://tools.ietf.org/html/rfc6750#section-2.3
*
* Old Android version bug (at least with version 2.2)
* @see http://code.google.com/p/android/issues/detail?id=6684
*
*/
public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response)
{
$headers = $request->headers('AUTHORIZATION');
// Check that exactly one method was used
$methodsUsed = !empty($headers) + !is_null($request->query($this->config['token_param_name'])) + !is_null($request->request($this->config['token_param_name']));
if ($methodsUsed > 1) {
$response->setError(400, 'invalid_request', 'Only one method may be used to authenticate at a time (Auth header, GET or POST)');
return null;
}
if ($methodsUsed == 0) {
$response->setStatusCode(401);
return null;
}
// HEADER: Get the access token from the header
if (!empty($headers)) {
if (!preg_match('/' . $this->config['token_bearer_header_name'] . '\\s(\\S+)/', $headers, $matches)) {
$response->setError(400, 'invalid_request', 'Malformed auth header');
return null;
}
return $matches[1];
}
if ($request->request($this->config['token_param_name'])) {
// POST: Get the token from POST data
if (strtolower($request->server('REQUEST_METHOD')) != 'post') {
$response->setError(400, 'invalid_request', 'When putting the token in the body, the method must be POST');
return null;
}
$contentType = $request->server('CONTENT_TYPE');
if (false !== ($pos = strpos($contentType, ';'))) {
$contentType = substr($contentType, 0, $pos);
}
LogMessage($request->request('upload_image'));
LogMessage($contentType);
if (!$request->files['Filedata']) {
if ($contentType !== null && $contentType != 'application/x-www-form-urlencoded') {
// IETF specifies content-type. NB: Not all webservers populate this _SERVER variable
// @see http://tools.ietf.org/html/rfc6750#section-2.2
$response->setError(400, 'invalid_request', 'The content type for POST requests must be "application/x-www-form-urlencoded"');
return null;
}
}
return $request->request($this->config['token_param_name']);
}
// GET method
return $request->query($this->config['token_param_name']);
}
/**
* Grant or deny a requested access token.
* This would be called from the "/token" endpoint as defined in the spec.
* You can call your endpoint whatever you want.
*
* @param $request - RequestInterface
* Request object to grant access token
*
* @throws InvalidArgumentException
* @throws LogicException
*
* @see http://tools.ietf.org/html/rfc6749#section-4
* @see http://tools.ietf.org/html/rfc6749#section-10.6
* @see http://tools.ietf.org/html/rfc6749#section-4.1.3
*
* @ingroup oauth2_section_4
*/
public function grantAccessToken(RequestInterface $request, ResponseInterface $response)
{
if (strtolower($request->server('REQUEST_METHOD')) != 'post') {
$response->setError(405, 'invalid_request', 'The request method must be POST when requesting an access token', '#section-3.2');
$response->addHttpHeaders(array('Allow' => 'POST'));
return null;
}
/* Determine grant type from request
* and validate the request for that grant type
*/
if (!($grantTypeIdentifier = $request->request('grant_type'))) {
$response->setError(400, 'invalid_request', 'The grant type was not specified in the request');
return null;
}
if (!isset($this->grantTypes[$grantTypeIdentifier])) {
/* TODO: If this is an OAuth2 supported grant type that we have chosen not to implement, throw a 501 Not Implemented instead */
$response->setError(400, 'unsupported_grant_type', sprintf('Grant type "%s" not supported', $grantTypeIdentifier));
return null;
}
$grantType = $this->grantTypes[$grantTypeIdentifier];
if (!$grantType->validateRequest($request, $response)) {
return null;
}
/* Retrieve the client information from the request
* ClientAssertionTypes allow for grant types which also assert the client data
* in which case ClientAssertion is handled in the validateRequest method
*
* @see OAuth2\GrantType\JWTBearer
* @see OAuth2\GrantType\ClientCredentials
*/
if ($grantType instanceof ClientAssertionTypeInterface) {
$clientId = $grantType->getClientId();
} else {
if (!$this->clientAssertionType->validateRequest($request, $response)) {
return null;
}
$clientId = $this->clientAssertionType->getClientId();
// validate the Client ID (if applicable)
if (!is_null($storedClientId = $grantType->getClientId()) && $storedClientId != $clientId) {
$response->setError(400, 'invalid_grant', sprintf('%s doesn\'t exist or is invalid for the client', $grantTypeIdentifier));
return null;
}
}
/*
* Validate the scope of the token
* If the grant type returns a value for the scope,
* this value must be verified with the scope being requested
*/
$availableScope = $grantType->getScope();
if (!($requestedScope = $this->scopeUtil->getScopeFromRequest($request))) {
$requestedScope = $availableScope ? $availableScope : $this->scopeUtil->getDefaultScope();
}
if ($requestedScope && !$this->scopeUtil->scopeExists($requestedScope, $clientId) || $availableScope && !$this->scopeUtil->checkScope($requestedScope, $availableScope)) {
$response->setError(400, 'invalid_scope', 'An unsupported scope was requested');
return null;
}
return $grantType->createAccessToken($this->accessToken, $clientId, $grantType->getUserId(), $requestedScope);
}
public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response)
{
$headers = $request->headers('AUTHORIZATION');
$methodsUsed = !empty($headers) + (bool) $request->query($this->config['token_param_name']) + (bool) $request->request($this->config['token_param_name']);
if ($methodsUsed > 1) {
$response->setError(400, 'invalid_request', 'Only one method may be used to authenticate at a time (Auth header, GET or POST)');
return null;
}
if ($methodsUsed == 0) {
$response->setStatusCode(401);
return null;
}
// HEADER: Get the access token from the header
if (!empty($headers)) {
if (!preg_match('/' . $this->config['token_bearer_header_name'] . '\\s(\\S+)/i', $headers, $matches)) {
$response->setError(400, 'invalid_request', 'Malformed auth header');
return null;
}
return $matches[1];
}
if ($request->request($this->config['token_param_name'])) {
// // POST: Get the token from POST data
if (!in_array(strtolower($request->server('REQUEST_METHOD')), array('post', 'put'))) {
$response->setError(400, 'invalid_request', 'When putting the token in the body, the method must be POST or PUT', '#section-2.2');
return null;
}
$contentType = $request->server('CONTENT_TYPE');
if (false !== ($pos = strpos($contentType, ';'))) {
$contentType = substr($contentType, 0, $pos);
}
if ($contentType !== null && $contentType != 'application/x-www-form-urlencoded') {
$response->setError(400, 'invalid_request', 'The content type for POST requests must be "application/x-www-form-urlencoded"');
return null;
}
return $request->request($this->config['token_param_name']);
}
return $request->query($this->config['token_param_name']);
}
/**
* Revoke a refresh or access token. Returns true on success and when tokens are invalid
*
* Note: invalid tokens do not cause an error response since the client
* cannot handle such an error in a reasonable way. Moreover, the
* purpose of the revocation request, invalidating the particular token,
* is already achieved.
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @return bool|null
*/
public function revokeToken(RequestInterface $request, ResponseInterface $response)
{
if (strtolower($request->server('REQUEST_METHOD')) != 'post') {
$response->setError(405, 'invalid_request', 'The request method must be POST when revoking an access token', '#section-3.2');
$response->addHttpHeaders(array('Allow' => 'POST'));
return null;
}
$token_type_hint = $request->request('token_type_hint');
if (!in_array($token_type_hint, array(null, 'access_token', 'refresh_token'), true)) {
$response->setError(400, 'invalid_request', 'Token type hint must be either \'access_token\' or \'refresh_token\'');
return null;
}
$token = $request->request('token');
if ($token === null) {
$response->setError(400, 'invalid_request', 'Missing token parameter to revoke');
return null;
}
// @todo remove this check for v2.0
if (!method_exists($this->accessToken, 'revokeToken')) {
$class = get_class($this->accessToken);
throw new \RuntimeException("AccessToken {$class} does not implement required revokeToken method");
}
$this->accessToken->revokeToken($token, $token_type_hint);
return true;
}
/**
* Grant or deny a requested access token.
* This would be called from the "/token" endpoint as defined in the spec.
* You can call your endpoint whatever you want.
*
* @param $request - RequestInterface
* Request object to grant access token
*
* @throws InvalidArgumentException
* @throws LogicException
*
* @see http://tools.ietf.org/html/rfc6749#section-4
* @see http://tools.ietf.org/html/rfc6749#section-10.6
* @see http://tools.ietf.org/html/rfc6749#section-4.1.3
*
* @ingroup oauth2_section_4
*/
public function grantAccessToken(RequestInterface $request, ResponseInterface $response)
{
if (strtolower($request->server('REQUEST_METHOD')) != 'post') {
$response->setError(405, 'invalid_request', 'The request method must be POST when requesting an access token', '#section-3.2');
$response->addHttpHeaders(array('Allow' => 'POST'));
return null;
}
/**
* Determine grant type from request
* and validate the request for that grant type
*/
if (!($grantTypeIdentifier = $request->request('grant_type'))) {
$response->setError(400, 'invalid_request', 'The grant type was not specified in the request');
return null;
}
if (!isset($this->grantTypes[$grantTypeIdentifier])) {
/* TODO: If this is an OAuth2 supported grant type that we have chosen not to implement, throw a 501 Not Implemented instead */
$response->setError(400, 'unsupported_grant_type', sprintf('Grant type "%s" not supported', $grantTypeIdentifier));
return null;
}
$grantType = $this->grantTypes[$grantTypeIdentifier];
/**
* Retrieve the client information from the request
* ClientAssertionTypes allow for grant types which also assert the client data
* in which case ClientAssertion is handled in the validateRequest method
*
* @see OAuth2\GrantType\JWTBearer
* @see OAuth2\GrantType\ClientCredentials
*/
if (!$grantType instanceof ClientAssertionTypeInterface) {
if (!$this->clientAssertionType->validateRequest($request, $response)) {
return null;
}
$clientId = $this->clientAssertionType->getClientId();
}
/**
* Retrieve the grant type information from the request
* The GrantTypeInterface object handles all validation
* If the object is an instance of ClientAssertionTypeInterface,
* That logic is handled here as well
*/
if (!$grantType->validateRequest($request, $response)) {
return null;
}
if ($grantType instanceof ClientAssertionTypeInterface) {
$clientId = $grantType->getClientId();
} else {
// validate the Client ID (if applicable)
if (!is_null($storedClientId = $grantType->getClientId()) && $storedClientId != $clientId) {
$response->setError(400, 'invalid_grant', sprintf('%s doesn\'t exist or is invalid for the client', $grantTypeIdentifier));
return null;
}
}
/**
* Validate the client can use the requested grant type
*/
if (!$this->clientStorage->checkRestrictedGrantType($clientId, $grantTypeIdentifier)) {
$response->setError(400, 'unauthorized_client', 'The grant type is unauthorized for this client_id');
return false;
}
/**
* Validate the scope of the token
*
* requestedScope - the scope specified in the token request
* availableScope - the scope associated with the grant type
* ex: in the case of the "Authorization Code" grant type,
* the scope is specified in the authorize request
*
* @see http://tools.ietf.org/html/rfc6749#section-3.3
*/
$requestedScope = $this->scopeUtil->getScopeFromRequest($request);
$availableScope = $grantType->getScope();
if ($requestedScope) {
// validate the requested scope
if ($availableScope) {
if (!$this->scopeUtil->checkScope($requestedScope, $availableScope)) {
$response->setError(400, 'invalid_scope', 'The scope requested is invalid for this request');
return null;
}
} else {
// validate the client has access to this scope
if ($clientScope = $this->clientStorage->getClientScope($clientId)) {
if (!$this->scopeUtil->checkScope($requestedScope, $clientScope)) {
$response->setError(400, 'invalid_scope', 'The scope requested is invalid for this client');
return false;
}
} elseif (!$this->scopeUtil->scopeExists($requestedScope)) {
$response->setError(400, 'invalid_scope', 'An unsupported scope was requested');
return null;
}
}
} elseif ($availableScope) {
// use the scope associated with this grant type
$requestedScope = $availableScope;
} else {
// use a globally-defined default scope
$defaultScope = $this->scopeUtil->getDefaultScope($clientId);
// "false" means default scopes are not allowed
if (false === $defaultScope) {
$response->setError(400, 'invalid_scope', 'This application requires you specify a scope parameter');
return null;
}
$requestedScope = $defaultScope;
}
return $grantType->createAccessToken($this->accessToken, $clientId, $grantType->getUserId(), $requestedScope);
}
/**
* This is a convenience function that can be used to get the token, which can then
* be passed to getAccessTokenData(). The constraints specified by the draft are
* attempted to be adheared to in this method.
*
* As per the Bearer spec (draft 8, section 2) - there are three ways for a client
* to specify the bearer token, in order of preference: Authorization Header,
* POST and GET.
*
* NB: Resource servers MUST accept tokens via the Authorization scheme
* (http://tools.ietf.org/html/rfc6750#section-2).
*
* @todo Should we enforce TLS/SSL in this function?
*
* @see http://tools.ietf.org/html/rfc6750#section-2.1
* @see http://tools.ietf.org/html/rfc6750#section-2.2
* @see http://tools.ietf.org/html/rfc6750#section-2.3
*
* Old Android version bug (at least with version 2.2)
* @see http://code.google.com/p/android/issues/detail?id=6684
*
*/
public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response)
{
$headers = $request->headers('AUTHORIZATION');
/**
* Ensure more than one method is not used for including an
* access token
*
* @see http://tools.ietf.org/html/rfc6750#section-3.1
*/
$methodsUsed = !empty($headers) + (bool) $request->query($this->config['token_param_name']) + (bool) $request->request($this->config['token_param_name']);
if ($methodsUsed > 1) {
$response->setError(400, 'invalid_request', 'Only one method may be used to authenticate at a time (Auth header, GET or POST)');
return null;
}
/**
* If no authentication is provided, set the status code
* to 401 and return no other error information
*
* @see http://tools.ietf.org/html/rfc6750#section-3.1
*/
if ($methodsUsed == 0) {
$response->setStatusCode(401);
return null;
}
// HEADER: Get the access token from the header
if (!empty($headers)) {
if (!preg_match('/' . $this->config['token_bearer_header_name'] . '\\s(\\S+)/', $headers, $matches)) {
$response->setError(400, 'invalid_request', 'Malformed auth header');
return null;
}
return $matches[1];
}
if ($request->request($this->config['token_param_name'])) {
// // POST: Get the token from POST data
if (!in_array(strtolower($request->server('REQUEST_METHOD')), array('post', 'put'))) {
$response->setError(400, 'invalid_request', 'When putting the token in the body, the method must be POST or PUT', '#section-2.2');
return null;
}
$contentType = $request->server('CONTENT_TYPE');
if (false !== ($pos = strpos($contentType, ';'))) {
$contentType = substr($contentType, 0, $pos);
}
if ($contentType !== null && $contentType != 'application/x-www-form-urlencoded') {
// IETF specifies content-type. NB: Not all webservers populate this _SERVER variable
// @see http://tools.ietf.org/html/rfc6750#section-2.2
$response->setError(400, 'invalid_request', 'The content type for POST requests must be "application/x-www-form-urlencoded"');
return null;
}
return $request->request($this->config['token_param_name']);
}
// GET method
return $request->query($this->config['token_param_name']);
}
public function grantAccessToken(RequestInterface $request, ResponseInterface $response)
{
if (strtolower($request->server('REQUEST_METHOD')) != 'post') {
$response->setError(405, 'invalid_request', 'The request method must be POST when requesting an access token', '#section-3.2');
$response->addHttpHeaders(array('Allow' => 'POST'));
return null;
}
if (!($grantTypeIdentifier = $request->request('grant_type'))) {
$response->setError(400, 'invalid_request', 'The grant type was not specified in the request');
return null;
}
if (!isset($this->grantTypes[$grantTypeIdentifier])) {
$response->setError(400, 'unsupported_grant_type', sprintf('Grant type "%s" not supported', $grantTypeIdentifier));
return null;
}
$grantType = $this->grantTypes[$grantTypeIdentifier];
if (!$grantType instanceof ClientAssertionTypeInterface) {
if (!$this->clientAssertionType->validateRequest($request, $response)) {
return null;
}
$clientId = $this->clientAssertionType->getClientId();
}
if (!$grantType->validateRequest($request, $response)) {
return null;
}
if ($grantType instanceof ClientAssertionTypeInterface) {
$clientId = $grantType->getClientId();
} else {
// validate the Client ID (if applicable)
if (!is_null($storedClientId = $grantType->getClientId()) && $storedClientId != $clientId) {
$response->setError(400, 'invalid_grant', sprintf('%s doesn\'t exist or is invalid for the client', $grantTypeIdentifier));
return null;
}
}
/**
* Validate the client can use the requested grant type
*/
if (!$this->clientStorage->checkRestrictedGrantType($clientId, $grantTypeIdentifier)) {
$response->setError(400, 'unauthorized_client', 'The grant type is unauthorized for this client_id');
return false;
}
$requestedScope = $this->scopeUtil->getScopeFromRequest($request);
$availableScope = $grantType->getScope();
if ($requestedScope) {
// validate the requested scope
if ($availableScope) {
if (!$this->scopeUtil->checkScope($requestedScope, $availableScope)) {
$response->setError(400, 'invalid_scope', 'The scope requested is invalid for this request');
return null;
}
} else {
// validate the client has access to this scope
if ($clientScope = $this->clientStorage->getClientScope($clientId)) {
if (!$this->scopeUtil->checkScope($requestedScope, $clientScope)) {
$response->setError(400, 'invalid_scope', 'The scope requested is invalid for this client');
return false;
}
} elseif (!$this->scopeUtil->scopeExists($requestedScope)) {
$response->setError(400, 'invalid_scope', 'An unsupported scope was requested');
return null;
}
}
} elseif ($availableScope) {
// use the scope associated with this grant type
$requestedScope = $availableScope;
} else {
// use a globally-defined default scope
$defaultScope = $this->scopeUtil->getDefaultScope($clientId);
// "false" means default scopes are not allowed
if (false === $defaultScope) {
$response->setError(400, 'invalid_scope', 'This application requires you specify a scope parameter');
return null;
}
$requestedScope = $defaultScope;
}
return $grantType->createAccessToken($this->accessToken, $clientId, $grantType->getUserId(), $requestedScope);
}
