/**
* Add an additional security scheme to the list of schemes the whole API is secured by
*
* @param SecurityScheme $securityScheme
*/
public function addSecuredBy(SecurityScheme $securityScheme)
{
$this->securedBy[$securityScheme->getKey()] = $securityScheme;
}
/**
* Run the request
*
* @param \Raml\SecurityScheme $securityscheme_obj The security scheme to process the call data for
* @param \V1\APICall $apicall_obj The APICall object
*
* @return mixed The object we just completed or an array describing the next step in the security process
*/
public function run(\Raml\SecurityScheme $securityscheme_obj, \V1\APICall $apicall_obj)
{
// If the customer enters an authorization header, then we bail out of the security call.
if (\V1\APIRequest::is_static() === false && !empty($custom_headers = \V1\APIRequest::get('configure.headers', null)) && !empty($custom_headers['Authorization'])) {
return true;
}
$this->apicall = $apicall_obj;
/**
* GATHER THE NEEDED DATA
*/
$credentials = $apicall_obj->get_credentials();
$settings = $securityscheme_obj->getSettings();
$api_def = $apicall_obj->get_api_def();
$api_url = $apicall_obj->get_url();
$method = $apicall_obj->get_method();
$this->credentials = $credentials;
// Digest URI
$parsed_url = parse_url($api_url);
$digest_uri = empty($parsed_url['path']) ? '/' : $parsed_url['path'];
if (!empty($parsed_url['query'])) {
$digest_uri .= '?' . $parsed_url['query'];
}
$algorithm = empty($settings['algorithm']) ? 'md5' : \Str::lower($settings['algorithm']);
// Make sure that we have the required data.
if (empty($credentials['DIGEST_USERNAME']) || empty($credentials['DIGEST_PASSWORD']) || empty($settings['realm'])) {
$this->error = true;
return;
}
$this->realm = $settings['realm'];
$this->username = $credentials['DIGEST_USERNAME'];
// Find our nonce.
if (empty($credentials['DIGEST_NONCE'])) {
// Beg for nonces
$this->parse_www_auth_remote($api_url);
if (is_array($this->www_data) && !empty($this->www_data['nonce'])) {
$this->nonce = $this->www_data['nonce'];
} else {
$this->error = true;
return;
}
} else {
$this->nonce = $credentials['DIGEST_NONCE'];
}
// We save this value in the DB.
$credentials['DIGEST_NONCE'] = $this->nonce;
// Figure out if we've used the current nonce before.
if (!empty($settings['qop'])) {
// We may have "auth" or "auth-int" or "auth,auth-int" or "auth-int,auth"
if (substr_count(\Str::lower($settings['qop']), 'auth-int') > 0) {
$this->qop = 'auth-int';
} else {
$this->qop = 'auth';
}
/**
* We have a qop, so we need to figure out how many times we've sent a request with
* the current nonce. (Including the current request)
*
* @link http://www.ietf.org/rfc/rfc2617.txt
* Look up "nonce-count"
*/
if (empty($credentials['DIGEST_NONCE_COUNT'])) {
$credentials['DIGEST_NONCE_COUNT'] = 0;
}
$this->nonce_count = ++$credentials['DIGEST_NONCE_COUNT'];
}
// Do we need to send the "opaque" param?
if (!empty($settings['opaque'])) {
// It stays the same for the requester forevermore.
if ($settings['opaque'] === 'same') {
// We have the value on file. (Dynamic calls only)
if (!empty($credentials['DIGEST_OPAQUE'])) {
$this->opaque = $credentials['DIGEST_OPAQUE'];
}
}
// If it isn't set to "same" or "changes," then we have a static value.
if ($settings['opaque'] !== 'changes') {
$this->opaque = $settings['opaque'];
}
// We couldn't find the value, so we pull it from the header data of a new request.
if (empty($this->opaque)) {
// If we never contacted the remote server, do that now.
if ($this->www_data === false) {
$this->parse_www_auth_remote($api_url);
}
if (is_array($this->www_data) && !empty($this->www_data['opaque'])) {
$this->opaque = $this->www_data['opaque'];
// We'll save it since it'll always be the same.
if ($settings['opaque'] === 'same') {
$credentials['DIGEST_OPAQUE'] = $this->opaque;
}
} else {
// We've called the remote server and it didn't have the data.
$this->error = true;
return;
}
}
}
/*
* Increment our nonce counter for the current request with the nonce. (Pardon me while I go get a
* bowl of de Chex.)
*/
$this->nonce_count = dechex($this->nonce_count);
/**
* Format the nonce count as specified in section 3.2.2 of the RFC2617.
*
* @link http://www.ietf.org/rfc/rfc2617.txt
*/
if (($padding = 8 - strlen($this->nonce_count)) > 0) {
$this->nonce_count = str_repeat(0, $padding) . $this->nonce_count;
}
// Reliable client nonce
$this->cnonce = \Utility::get_nonce();
/**
* START COMPILING THE HEADER
*/
// MD5
$this->ha1 = md5($credentials['DIGEST_USERNAME'] . ':' . $this->realm . ':' . $credentials['DIGEST_PASSWORD']);
// MD5-sess
if ($algorithm === 'md5-sess') {
$this->ha1 = md5($this->ha1 . ':' . $this->nonce . ':' . $this->cnonce);
}
\V1\Keyring::set_credentials($credentials);
// We've finished for now. We'll configure more just before we send the request.
}
/**
* Run the request
*
* @param \Raml\SecurityScheme $securityscheme_obj The security scheme to process the call data for
* @param \V1\APICall $apicall_obj The APICall object
*
* @return mixed The object we just completed or an array describing the next step in the security process
*/
public function run(\Raml\SecurityScheme $securityscheme_obj, \V1\APICall $apicall_obj)
{
$settings = $securityscheme_obj->getSettings();
$credentials = $apicall_obj->get_credentials();
// Save the credentials
\V1\Keyring::set_credentials($credentials);
/**
* By default we'll return the response from the authentication request so that it's meaningful.
* However, in doing so, we'll need to block the main request, so developers may set this flag
* to ignore the authentication, signifying that they've already got the information they needed
* from it.
*
* NOTE: This security method is meant as a basic way to catch security methods we otherwise
* haven't implemented in our system. Take it for what it's worth.
*
* @TODO When using this security method, skip processing the APICall object for a speedup.
*/
if (!empty($credentials['CUSTOM_IGNORE_AUTH'])) {
return true;
}
// Remove unused credentials so as not to replace bad variables in the template.
foreach ($credentials as $variable => $entry) {
if (strpos($variable, 'CUSTOM_') !== 0) {
unset($credentials[$variable]);
}
}
// We need the method or we'll fail the call.
if (empty($settings['method'])) {
$this->error = true;
return $this;
}
// Normalize the data into arrays.
$described_by = $securityscheme_obj->getDescribedBy();
$headers = $this->get_param_array($described_by->getHeaders());
$query_params = $this->get_param_array($described_by->getQueryParameters());
$bodies = $described_by->getBodies();
$method = \Str::upper($settings['method']);
$url = $settings['url'];
// Grab the body if we have one, and the method supports one.
$body = null;
$body_type = null;
if (count($bodies) > 0 && !in_array($method, array('GET', 'HEAD'))) {
reset($bodies);
$body_type = key($bodies);
$body = $bodies[$body_type]->getExamples()[0];
}
/**
* NOTE: These replacements may ruin the formatting or allow for people to inject data into them.
* API Providers should be aware of that possibility.
*
* @TODO In the future, we can consider implementing checking to verify that people aren't sending
* crap data through the system.
*/
$headers = $this->remove_cr_and_lf($this->replace_variables($headers, $credentials));
$query_params = $this->remove_cr_and_lf($this->replace_variables($query_params, $credentials));
$body = $this->replace_variables($body, $credentials);
if (!empty($query_params)) {
$query_string = http_build_query($query_params, null, '&');
if (strpos($url, '?') === false) {
$url .= '?' . $query_string;
} else {
$url .= '&' . $query_string;
}
}
/**
* RUNCLE RICK'S RAD RUN CALLS (The second coming!)
*/
$curl = \Remote::forge($url, 'curl', $method);
// Set the headers
$headers = \V1\RunCall::get_headers($headers);
foreach ($headers as $header_name => $header_value) {
$curl->set_header($header_name, $header_value);
}
// Return the headers
$curl->set_option(CURLOPT_HEADER, true);
// If we need a body, set that.
if (!empty($body) && !in_array($method, array('GET', 'HEAD'))) {
$curl->set_header('Content-Type', $body_type);
$curl->set_params($body);
}
// Run the request
try {
$response = $curl->execute()->response();
} catch (\RequestStatusException $e) {
$response = \Remote::get_response($curl);
} catch (\RequestException $e) {
$this->error = true;
return $this;
}
// Set the usage stats, and format the response
return \V1\Socket::prepare_response(array('status' => $response->status, 'headers' => $response->headers, 'body' => $response->body));
}
/**
* Run the request
*
* @param \Raml\SecurityScheme $securityscheme_obj The security scheme to process the call data for
* @param \V1\APICall $apicall_obj The APICall object
*
* @return mixed The object we just completed or an array describing the next step in the security process
*/
public function run(\Raml\SecurityScheme $securityscheme_obj, \V1\APICall $apicall_obj)
{
$settings = $securityscheme_obj->getSettings()->asArray();
$credentials = $apicall_obj->get_credentials();
$settings['authorization'] = empty($settings['authorization']) ? 'header' : \Str::lower($settings['authorization']);
// Verify that we have the required credentials for the request.
if (empty($credentials['OAUTH_CONSUMER_KEY']) || empty($credentials['OAUTH_CONSUMER_SECRET']) || empty($credentials['OAUTH_USER_ID'])) {
$this->error = true;
return $this;
}
// Store the proper credentials in the DB.
$this->store_credentials($credentials);
// Pull data from the cache for the current request, allowing for multiple authentications for the customer.
$this->cache_id = hash('sha256', $credentials['OAUTH_CONSUMER_KEY'] . $credentials['OAUTH_CONSUMER_SECRET'] . $credentials['OAUTH_USER_ID']);
$credentials = array_replace($this->get_cache(), $credentials);
// Where should we set the authorization data?
switch ($settings['authorizeLocation']) {
case 'header':
$authorize_location = OAUTH_AUTH_TYPE_AUTHORIZATION;
break;
case 'query':
$authorize_location = OAUTH_AUTH_TYPE_URI;
break;
case 'body':
$authorize_location = OAUTH_AUTH_TYPE_FORM;
break;
case 'none':
$authorize_location = OAUTH_AUTH_TYPE_NONE;
break;
}
try {
// Create the PECL installed OAuth object.
$oauth = new \OAuth($credentials['OAUTH_CONSUMER_KEY'], $credentials['OAUTH_CONSUMER_SECRET'], $settings['signatureMethod'], $authorize_location);
if (\Fuel::$env !== 'production') {
$oauth->enableDebug();
}
if (empty($credentials['OAUTH_ACCESS_TOKEN']) || empty($credentials['OAUTH_ACCESS_TOKEN_SECRET'])) {
// Get our access token and secret.
if (($credentials = $this->get_access_tokens($oauth, $settings, $credentials)) === false) {
$this->error = true;
return $this;
}
// Authentication of my second leg (Yup. It's hairy, so it must be mine.)
if (!empty($credentials['errors'])) {
return $credentials;
}
}
$oauth->setToken($credentials['OAUTH_ACCESS_TOKEN'], $credentials['OAUTH_ACCESS_TOKEN_SECRET']);
// Collect parameters to build our signature
$params = null;
if ($apicall_obj->get_body_type() === 'application/x-www-form-urlencoded') {
// If we need to handle string bodies later, we will.
if (is_array($apicall_obj->get_method_params())) {
$params = http_build_query($apicall_obj->get_method_params(), null, '&', PHP_QUERY_RFC3986) . '&';
}
}
$params .= http_build_query($apicall_obj->get_query_params(), null, '&') . '&' . ($params .= http_build_query($apicall_obj->get_headers(), null, '&'));
$header = $oauth->getRequestHeader($apicall_obj->get_method(), $apicall_obj->get_url(), $params);
$apicall_obj->set_header('Authorization', $header);
return true;
} catch (\OAuthException $e) {
// Something went wrong, so destroy the cache so it can get fixed.
$this->delete_cache();
// Let the script automatically continue searching for security methods.
$this->error = true;
return $this;
}
}
