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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_
#define NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_
#include <map>
#include <string>
#include "base/scoped_ptr.h"
#include "net/http/http_auth.h"
#include "net/http/http_auth_filter.h"
class GURL;
namespace net {
class HttpAuthHandler;
class HttpAuthHandlerRegistryFactory;
// An HttpAuthHandlerFactory is used to create HttpAuthHandler objects.
class HttpAuthHandlerFactory {
public:
HttpAuthHandlerFactory() {}
virtual ~HttpAuthHandlerFactory() {}
// Sets an authentication filter.
void set_filter(HttpAuthFilter* filter) {
filter_.reset(filter);
}
// Retrieves the associated authentication filter.
const HttpAuthFilter* filter() const {
return filter_.get();
}
// Creates an HttpAuthHandler object based on the authentication
// challenge specified by |*challenge|. |challenge| must point to a valid
// non-NULL tokenizer.
//
// If an HttpAuthHandler object is successfully created it is passed back to
// the caller through |*handler| and OK is returned.
//
// If |*challenge| specifies an unsupported authentication scheme, |*handler|
// is set to NULL and ERR_UNSUPPORTED_AUTH_SCHEME is returned.
//
// If |*challenge| is improperly formed, |*handler| is set to NULL and
// ERR_INVALID_RESPONSE is returned.
//
// For the NTLM and Negotiate handlers:
// If |origin| does not match the authentication method's filters for
// the specified |target|, ERR_INVALID_AUTH_CREDENTIALS is returned.
// NOTE: This will apply to ALL |origin| values if the filters are empty.
//
// |*challenge| should not be reused after a call to |CreateAuthHandler()|,
virtual int CreateAuthHandler(HttpAuth::ChallengeTokenizer* challenge,
HttpAuth::Target target,
const GURL& origin,
scoped_refptr<HttpAuthHandler>* handler) = 0;
// Creates an HTTP authentication handler based on the authentication
// challenge string |challenge|.
// This is a convenience function which creates a ChallengeTokenizer for
// |challenge| and calls |CreateAuthHandler|. See |CreateAuthHandler| for
// more details on return values.
int CreateAuthHandlerFromString(const std::string& challenge,
HttpAuth::Target target,
const GURL& origin,
scoped_refptr<HttpAuthHandler>* handler);
// Creates a standard HttpAuthHandlerRegistryFactory. The caller is
// responsible for deleting the factory.
// The default factory supports Basic, Digest, NTLM, and Negotiate schemes.
static HttpAuthHandlerRegistryFactory* CreateDefault();
private:
// The authentication filter
scoped_ptr<HttpAuthFilter> filter_;
DISALLOW_COPY_AND_ASSIGN(HttpAuthHandlerFactory);
};
// The HttpAuthHandlerRegistryFactory dispatches create requests out
// to other factories based on the auth scheme.
class HttpAuthHandlerRegistryFactory : public HttpAuthHandlerFactory {
public:
HttpAuthHandlerRegistryFactory();
virtual ~HttpAuthHandlerRegistryFactory();
// Sets an authentication filter into the factory associated with |scheme|.
void SetFilter(const std::string& scheme, HttpAuthFilter* filter);
// Retrieves the authentication filter associated with |scheme|.
const HttpAuthFilter* GetFilter(const std::string& scheme) const;
// Registers a |factory| that will be used for a particular HTTP
// authentication scheme such as Basic, Digest, or Negotiate.
// The |*factory| object is assumed to be new-allocated, and its lifetime
// will be managed by this HttpAuthHandlerRegistryFactory object (including
// deleting it when it is no longer used.
// A NULL |factory| value means that HttpAuthHandlers's will not be created
// for |scheme|. If a factory object used to exist for |scheme|, it will be
// deleted.
void RegisterSchemeFactory(const std::string& scheme,
HttpAuthHandlerFactory* factory);
// Creates an auth handler by dispatching out to the registered factories
// based on the first token in |challenge|.
virtual int CreateAuthHandler(HttpAuth::ChallengeTokenizer* challenge,
HttpAuth::Target target,
const GURL& origin,
scoped_refptr<HttpAuthHandler>* handler);
private:
// Retrieve the factory for the specified |scheme|
HttpAuthHandlerFactory* GetSchemeFactory(const std::string& scheme) const;
typedef std::map<std::string, HttpAuthHandlerFactory*> FactoryMap;
FactoryMap factory_map_;
DISALLOW_COPY_AND_ASSIGN(HttpAuthHandlerRegistryFactory);
};
} // namespace net
#endif // NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_
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