Auth/Adapter/Http.php

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Zend Framework

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Category: Zend
Copyright: Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
License: New BSD License
Package: Zend_Auth
Subpackage: Zend_Auth_Adapter_Http
Version: $Id$

\Zend_Auth_Adapter_Http
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Package: Zend_Auth\Zend_Auth_Adapter_Http

HTTP Authentication Adapter

Implements a pretty good chunk of RFC 2617.

Implements
Category: Zend
Copyright: Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
License: New BSD License
Todo: Support auth-int
Todo: Track nonces, nonce-count, opaque for replay protection and stale support
Todo: Support Authentication-Info header

Properties

array $_acceptSchemes

List of schemes this class will accept from the client

Details

Type: array

string $_algo

The actual algorithm to use. Defaults to MD5

Details

Type: string

\Zend_Auth_Adapter_Http_Resolver_Interface $_basicResolver

Object that looks up user credentials for the Basic scheme

Details

Type: \Zend_Auth_Adapter_Http_Resolver_Interface

\Zend_Auth_Adapter_Http_Resolver_Interface $_digestResolver

Object that looks up user credentials for the Digest scheme

Details

Type: \Zend_Auth_Adapter_Http_Resolver_Interface

string $_domains

Space-delimited list of protected domains for Digest Auth

Details

Type: string

boolean $_ieNoOpaque

Flag indicating the client is IE and didn't bother to return the opaque string

Details

Type: boolean

boolean $_imaProxy

Whether or not to do Proxy Authentication instead of origin server authentication (send 407's instead of 401's). Off by default.

Details

Type: boolean

integer $_nonceTimeout

Nonce timeout period

Details

Type: integer

string $_realm

The protection realm to use

Details

Type: string

\Zend_Controller_Request_Http $_request

Reference to the HTTP Request object

Details

Type: \Zend_Controller_Request_Http

\Zend_Controller_Response_Http $_response

Reference to the HTTP Response object

Details

Type: \Zend_Controller_Response_Http

array $_supportedAlgos = array('MD5')

List of the supported digest algorithms. I want to support both MD5 and MD5-sess, but MD5-sess won't make it into the first version.

Default valuearray('MD5')Details

Type: array

array $_supportedQops = array('auth')

List of supported qop options. My intetion is to support both 'auth' and 'auth-int', but 'auth-int' won't make it into the first version.

Default valuearray('auth')Details

Type: array

array $_supportedSchemes = array('basic', 'digest')

List of authentication schemes supported by this class

Default valuearray('basic', 'digest')Details

Type: array

boolean $_useOpaque

Whether to send the opaque value in the header. True by default

Details

Type: boolean

Methods

__construct(array $config) : void

Constructor

Parameters

Name	Type	Description
$config	array	Configuration settings: 'accept_schemes' => 'basic'\|'digest'\|'basic digest' 'realm' => 'digest_domains' => Space-delimited list of URIs 'nonce_timeout' => 'use_opaque' => Whether to send the opaque value in the header 'alogrithm' => See $_supportedAlgos. Default: MD5 'proxy_auth' => Whether to do authentication as a Proxy

Throws

Exception	Description
\Zend_Auth_Adapter_Exception

_basicAuth(string $header) : \Zend_Auth_Result

Basic Authentication

Parameters

Name	Type	Description
$header	string	Client's Authorization header

Returns

Type	Description
\Zend_Auth_Result

Throws

Exception	Description
\Zend_Auth_Adapter_Exception

_basicHeader() : string

Basic Header

Generates a Proxy- or WWW-Authenticate header value in the Basic authentication scheme.

Returns

Type	Description
string	Authenticate header value

_calcNonce() : string

Calculate Nonce

Returns

Type	Description
string	The nonce value

_calcOpaque() : string

Calculate Opaque

The opaque string can be anything; the client must return it exactly as it was sent. It may be useful to store data in this string in some applications. Ideally, a new value for this would be generated each time a WWW-Authenticate header is sent (in order to reduce predictability), but we would have to be able to create the same exact value across at least two separate requests from the same client.

Returns

Type	Description
string	The opaque value

_challengeClient() : \Zend_Auth_Result

Challenge Client

Sets a 401 or 407 Unauthorized response code, and creates the appropriate Authenticate header(s) to prompt for credentials.

Returns

Type	Description
\Zend_Auth_Result	Always returns a non-identity Auth result

_digestAuth(string $header) : \Zend_Auth_Result

Digest Authentication

Parameters

Name	Type	Description
$header	string	Client's Authorization header

Returns

Type	Description
\Zend_Auth_Result	Valid auth result only on successful auth

Throws

Exception	Description
\Zend_Auth_Adapter_Exception

_digestHeader() : string

Digest Header

Generates a Proxy- or WWW-Authenticate header value in the Digest authentication scheme.

Returns

Type	Description
string	Authenticate header value

_parseDigestAuth(string $header) : array | false

Parse Digest Authorization header

Parameters

Name	Type	Description
$header	string	Client's Authorization: HTTP header

Returns

Type	Description
array \| false	Data elements from header, or false if any part of the header is invalid

_secureStringCompare(string $a, string $b) : bool

Securely compare two strings for equality while avoided C level memcmp() optimisations capable of leaking timing information useful to an attacker attempting to iteratively guess the unknown string (e.g. password) being compared against.

Parameters

Name	Type	Description
$a	string
$b	string

Returns

Type	Description
bool

authenticate() : \Zend_Auth_Result

Authenticate

Returns

Type	Description
\Zend_Auth_Result

Throws

Exception	Description
\Zend_Auth_Adapter_Exception

getBasicResolver() : \Zend_Auth_Adapter_Http_Resolver_Interface

Getter for the _basicResolver property

Returns

Type	Description
\Zend_Auth_Adapter_Http_Resolver_Interface

getDigestResolver() : \Zend_Auth_Adapter_Http_Resolver_Interface

Getter for the _digestResolver property

Returns

Type	Description
\Zend_Auth_Adapter_Http_Resolver_Interface

getRequest() : \Zend_Controller_Request_Http

Getter for the Request object

Returns

Type	Description
\Zend_Controller_Request_Http

getResponse() : \Zend_Controller_Response_Http

Getter for the Response object

Returns

Type	Description
\Zend_Controller_Response_Http

setBasicResolver(\Zend_Auth_Adapter_Http_Resolver_Interface $resolver) : \Zend_Auth_Adapter_Http

Setter for the _basicResolver property

Parameters

Name	Type	Description
$resolver	\Zend_Auth_Adapter_Http_Resolver_Interface

Returns

Type	Description
\Zend_Auth_Adapter_Http	Provides a fluent interface

setDigestResolver(\Zend_Auth_Adapter_Http_Resolver_Interface $resolver) : \Zend_Auth_Adapter_Http

Setter for the _digestResolver property

Parameters

Name	Type	Description
$resolver	\Zend_Auth_Adapter_Http_Resolver_Interface

Returns

Type	Description
\Zend_Auth_Adapter_Http	Provides a fluent interface

setRequest(\Zend_Controller_Request_Http $request) : \Zend_Auth_Adapter_Http

Setter for the Request object

Parameters

Name	Type	Description
$request	\Zend_Controller_Request_Http

Returns

Type	Description
\Zend_Auth_Adapter_Http	Provides a fluent interface

setResponse(\Zend_Controller_Response_Http $response) : \Zend_Auth_Adapter_Http

Setter for the Response object

Parameters

Name	Type	Description
$response	\Zend_Controller_Response_Http

Returns

Type	Description
\Zend_Auth_Adapter_Http	Provides a fluent interface

Auth/Adapter/Http.php

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Properties

Methods

\Zend_Auth_Adapter_Http
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