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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.
#include "net/http/http_auth_handler_negotiate.h"
#include "net/base/net_errors.h"
namespace net {
HttpAuthHandlerNegotiate::HttpAuthHandlerNegotiate() :
auth_sspi_("Negotiate", NEGOSSP_NAME) {
}
HttpAuthHandlerNegotiate::~HttpAuthHandlerNegotiate() {
}
int HttpAuthHandlerNegotiate::GenerateAuthToken(
const std::wstring& username,
const std::wstring& password,
const HttpRequestInfo* request,
const ProxyInfo* proxy,
std::string* auth_token) {
return auth_sspi_.GenerateAuthToken(
&username,
&password,
origin_,
request,
proxy,
auth_token);
}
// The Negotiate challenge header looks like:
// WWW-Authenticate: NEGOTIATE auth-data
bool HttpAuthHandlerNegotiate::Init(HttpAuth::ChallengeTokenizer* challenge) {
scheme_ = "negotiate";
score_ = 4;
properties_ = ENCRYPTS_IDENTITY | IS_CONNECTION_BASED;
return auth_sspi_.ParseChallenge(challenge);
}
// Require identity on first pass instead of second.
bool HttpAuthHandlerNegotiate::NeedsIdentity() {
return auth_sspi_.NeedsIdentity();
}
bool HttpAuthHandlerNegotiate::IsFinalRound() {
return auth_sspi_.IsFinalRound();
}
bool HttpAuthHandlerNegotiate::AllowDefaultCredentials() {
// NOTE: Temporarily disabled. SSO is a potential security risk.
// TODO(cbentzel): Add a pointer to Firefox documentation about risk.
// TODO(cbentzel): Add a blanket command line flag to enable/disable?
// TODO(cbentzel): Add a whitelist regexp command line flag?
// TODO(cbentzel): Resolve the origin_ (helpful if doing already) and see if
// it is in private IP space?
// TODO(cbentzel): Compare origin_ to this machine's hostname and allow if
// it matches at least two or three layers deep?
return false;
}
int HttpAuthHandlerNegotiate::GenerateDefaultAuthToken(
const HttpRequestInfo* request,
const ProxyInfo* proxy,
std::string* auth_token) {
return auth_sspi_.GenerateAuthToken(
NULL, // username
NULL, // password
origin_,
request,
proxy,
auth_token);
}
int HttpAuthHandlerNegotiate::Factory::CreateAuthHandler(
HttpAuth::ChallengeTokenizer* challenge,
HttpAuth::Target target,
const GURL& origin,
scoped_refptr<HttpAuthHandler>* handler) {
// TODO(cbentzel): Move towards model of parsing in the factory
// method and only constructing when valid.
scoped_refptr<HttpAuthHandler> tmp_handler(new HttpAuthHandlerNegotiate());
if (!tmp_handler->InitFromChallenge(challenge, target, origin))
return ERR_INVALID_RESPONSE;
handler->swap(tmp_handler);
return OK;
}
} // namespace net
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