OAuthServer Class Reference

Inheritance diagram for OAuthServer:

Collaboration diagram for OAuthServer:

Public Member Functions
	__construct ($data_store)
	add_signature_method ($signature_method)
	fetch_request_token (&$request)
	process a request_token request returns the request token on success More...
	fetch_access_token (&$request)
	process an access_token request returns the access token on success More...
	verify_request (&$request)
	verify an api call, checks all the parameters More...

Protected Attributes
	$timestamp_threshold = 300
	$version = '1.0'
	$signature_methods = array()
	$data_store

Private Member Functions
	get_version (&$request)
	version 1 More...
	get_signature_method ($request)
	figure out the signature with some defaults More...
	get_consumer ($request)
	try to find the consumer for the provided request's consumer key More...
	get_token ($request, $consumer, $token_type="access")
	try to find the token for the provided request's token key More...
	check_signature ($request, $consumer, $token)
	all-in-one function to check the signature on a request should guess the signature method appropriately More...
	check_timestamp ($timestamp)
	check that the timestamp is new enough More...
	check_nonce ($consumer, $token, $nonce, $timestamp)
	check that the nonce is not repeated More...

Detailed Description

Definition at line 509 of file OAuth.php.

Constructor & Destructor Documentation

__construct()

OAuthServer::__construct

(

$data_store

)

Definition at line 516 of file OAuth.php.

                                      {
        $this->data_store = $data_store;
    }

References $data_store.

Member Function Documentation

add_signature_method()

OAuthServer::add_signature_method

(

$signature_method

)

Definition at line 520 of file OAuth.php.

                                                            {
        $this->signature_methods[$signature_method->get_name()] =
            $signature_method;
    }

check_nonce()

OAuthServer::check_nonce (   $consumer,   $token,   $nonce,   $timestamp  )

private

check that the nonce is not repeated

Definition at line 716 of file OAuth.php.

                                                                        {
        if( ! $nonce )
            throw new OAuthException(
                'Missing nonce parameter. The parameter is required'
            );
 
        // verify that the nonce is uniqueish
        $found = $this->data_store->lookup_nonce(
            $consumer,
            $token,
            $nonce,
            $timestamp
        );
        if ($found) {
            throw new OAuthException("Nonce already used: $nonce");
        }
    }

References $consumer, and $timestamp.

Referenced by check_signature().

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check_signature()

OAuthServer::check_signature (   $request,   $consumer,   $token  )

private

all-in-one function to check the signature on a request should guess the signature method appropriately

Definition at line 668 of file OAuth.php.

                                                                  {
        // this should probably be in a different method
        $timestamp = $request instanceof OAuthRequest
            ? $request->get_parameter('oauth_timestamp')
            : NULL;
        $nonce = $request instanceof OAuthRequest
            ? $request->get_parameter('oauth_nonce')
            : NULL;
 
        $this->check_timestamp($timestamp);
        $this->check_nonce($consumer, $token, $nonce, $timestamp);
 
        $signature_method = $this->get_signature_method($request);
 
        $signature = $request->get_parameter('oauth_signature');
        $valid_sig = $signature_method->check_signature(
            $request,
            $consumer,
            $token,
            $signature
        );
 
        if (!$valid_sig) {
            throw new OAuthException("Invalid signature");
        }
    }

References $consumer, $timestamp, check_nonce(), check_timestamp(), OAuthRequest\get_parameter(), and get_signature_method().

Referenced by fetch_access_token(), fetch_request_token(), and verify_request().

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check_timestamp()

OAuthServer::check_timestamp (   $timestamp )

private

check that the timestamp is new enough

Definition at line 698 of file OAuth.php.

                                                 {
        if( ! $timestamp )
            throw new OAuthException(
                'Missing timestamp parameter. The parameter is required'
            );
 
        // verify that timestamp is recentish
        $now = time();
        if (abs($now - $timestamp) > $this->timestamp_threshold) {
            throw new OAuthException(
                "Expired timestamp, yours $timestamp, ours $now"
            );
        }
    }

References $timestamp.

Referenced by check_signature().

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fetch_access_token()

OAuthServer::fetch_access_token

(

&

$request

)

process an access_token request returns the access token on success

Definition at line 552 of file OAuth.php.

                                                  {
        $this->get_version($request);
 
        $consumer = $this->get_consumer($request);
 
        // requires authorized request token
        $token = $this->get_token($request, $consumer, "request");
 
        $this->check_signature($request, $consumer, $token);
 
        // Rev A change
        $verifier = $request->get_parameter('oauth_verifier');
        $new_token = $this->data_store->new_access_token($token, $consumer, $verifier);
 
        return $new_token;
    }

References $consumer, check_signature(), get_consumer(), get_token(), and get_version().

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fetch_request_token()

OAuthServer::fetch_request_token

(

&

$request

)

process a request_token request returns the request token on success

Definition at line 531 of file OAuth.php.

                                                   {
        $this->get_version($request);
 
        $consumer = $this->get_consumer($request);
 
        // no token required for the initial token request
        $token = NULL;
 
        $this->check_signature($request, $consumer, $token);
 
        // Rev A change
        $callback = $request->get_parameter('oauth_callback');
        $new_token = $this->data_store->new_request_token($consumer, $callback);
 
        return $new_token;
    }

References $consumer, check_signature(), get_consumer(), and get_version().

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get_consumer()

OAuthServer::get_consumer (   $request )

private

try to find the consumer for the provided request's consumer key

Definition at line 625 of file OAuth.php.

                                            {
        $consumer_key = $request instanceof OAuthRequest
            ? $request->get_parameter("oauth_consumer_key")
            : NULL;
 
        if (!$consumer_key) {
            throw new OAuthException("Invalid consumer key");
        }
 
        $consumer = $this->data_store->lookup_consumer($consumer_key);
        if (!$consumer) {
            throw new OAuthException("Invalid consumer");
        }
 
        return $consumer;
    }

References $consumer, and OAuthRequest\get_parameter().

Referenced by fetch_access_token(), fetch_request_token(), and verify_request().

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get_signature_method()

OAuthServer::get_signature_method (   $request )

private

figure out the signature with some defaults

Definition at line 600 of file OAuth.php.

                                                    {
        $signature_method = $request instanceof OAuthRequest
            ? $request->get_parameter("oauth_signature_method")
            : NULL;
 
        if (!$signature_method) {
            // According to chapter 7 ("Accessing Protected Ressources") the signature-method
            // parameter is required, and we can't just fallback to PLAINTEXT
            throw new OAuthException('No signature method parameter. This parameter is required');
        }
 
        if (!in_array($signature_method,
            array_keys($this->signature_methods))) {
            throw new OAuthException(
                "Signature method '$signature_method' not supported " .
                "try one of the following: " .
                implode(", ", array_keys($this->signature_methods))
            );
        }
        return $this->signature_methods[$signature_method];
    }

References OAuthRequest\get_parameter().

Referenced by check_signature().

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get_token()

OAuthServer::get_token (   $request,   $consumer,   $token_type = "access"  )

private

try to find the token for the provided request's token key

Definition at line 645 of file OAuth.php.

                                                                          {
        $token_field = $request instanceof OAuthRequest
            ? $request->get_parameter('oauth_token')
            : NULL;
 
        if (!empty($token_field)) {
            $token = $this->data_store->lookup_token(
                $consumer, $token_type, $token_field
            );
            if (!$token) {
                throw new OAuthException("Invalid $token_type token: $token_field");
            }
        }
        else {
            $token = new OAuthToken('', '');
        }
        return $token;
    }

References $consumer, and OAuthRequest\get_parameter().

Referenced by fetch_access_token(), and verify_request().

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get_version()

OAuthServer::get_version ( &  $request )

private

version 1

Definition at line 584 of file OAuth.php.

                                            {
        $version = $request->get_parameter("oauth_version");
        if (!$version) {
            // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
            // Chapter 7.0 ("Accessing Protected Ressources")
            $version = '1.0';
        }
        if ($version !== $this->version) {
            throw new OAuthException("OAuth version '$version' not supported");
        }
        return $version;
    }

References $version.

Referenced by fetch_access_token(), fetch_request_token(), and verify_request().

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verify_request()

OAuthServer::verify_request

(

&

$request

)

verify an api call, checks all the parameters

Definition at line 572 of file OAuth.php.

                                              {
        $this->get_version($request);
        $consumer = $this->get_consumer($request);
        $token = $this->get_token($request, $consumer, "access");
        $this->check_signature($request, $consumer, $token);
        return array($consumer, $token);
    }

References $consumer, check_signature(), get_consumer(), get_token(), and get_version().

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Field Documentation

$data_store

OAuthServer::$data_store

protected

Definition at line 514 of file OAuth.php.

Referenced by __construct().

$signature_methods

OAuthServer::$signature_methods = array()

protected

Definition at line 512 of file OAuth.php.

Referenced by sspmod_oauth_OAuthServer\get_signature_methods().

$timestamp_threshold

OAuthServer::$timestamp_threshold = 300

protected

Definition at line 510 of file OAuth.php.

$version

OAuthServer::$version = '1.0'

protected

Definition at line 511 of file OAuth.php.

Referenced by get_version().

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The documentation for this class was generated from the following file:

• libs/composer/vendor/simplesamlphp/simplesamlphp/modules/oauth/libextinc/OAuth.php