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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// See "SSPI Sample Application" at
// http://msdn.microsoft.com/en-us/library/aa918273.aspx
// and "NTLM Security Support Provider" at
// http://msdn.microsoft.com/en-us/library/aa923611.aspx.
#include "net/http/http_auth_handler_ntlm.h"
#include "base/strings/string_util.h"
#include "net/base/net_errors.h"
#include "net/dns/host_resolver.h"
#include "net/http/http_auth.h"
#include "net/http/http_auth_preferences.h"
#include "net/http/http_auth_sspi_win.h"
namespace net {
int HttpAuthHandlerNTLM::Factory::CreateAuthHandler(
HttpAuthChallengeTokenizer* challenge,
HttpAuth::Target target,
const SSLInfo& ssl_info,
const NetworkAnonymizationKey& network_anonymization_key,
const url::SchemeHostPort& scheme_host_port,
CreateReason reason,
int digest_nonce_count,
const NetLogWithSource& net_log,
HostResolver* host_resolver,
std::unique_ptr<HttpAuthHandler>* handler) {
if (reason == CREATE_PREEMPTIVE)
return ERR_UNSUPPORTED_AUTH_SCHEME;
// TODO(cbentzel): Move towards model of parsing in the factory
// method and only constructing when valid.
auto tmp_handler = std::make_unique<HttpAuthHandlerNTLM>(
sspi_library_.get(), http_auth_preferences());
if (!tmp_handler->InitFromChallenge(challenge, target, ssl_info,
network_anonymization_key, scheme_host_port,
net_log))
return ERR_INVALID_RESPONSE;
*handler = std::move(tmp_handler);
return OK;
}
HttpAuthHandlerNTLM::HttpAuthHandlerNTLM(
SSPILibrary* sspi_library,
const HttpAuthPreferences* http_auth_preferences)
: mechanism_(sspi_library, HttpAuth::AUTH_SCHEME_NTLM),
http_auth_preferences_(http_auth_preferences) {}
int HttpAuthHandlerNTLM::GenerateAuthTokenImpl(
const AuthCredentials* credentials,
const HttpRequestInfo* request,
CompletionOnceCallback callback,
std::string* auth_token) {
return mechanism_.GenerateAuthToken(credentials, CreateSPN(scheme_host_port_),
channel_bindings_, auth_token, net_log(),
std::move(callback));
}
HttpAuthHandlerNTLM::~HttpAuthHandlerNTLM() = default;
// Require identity on first pass instead of second.
bool HttpAuthHandlerNTLM::NeedsIdentity() {
return mechanism_.NeedsIdentity();
}
bool HttpAuthHandlerNTLM::AllowsDefaultCredentials() {
if (target_ == HttpAuth::AUTH_PROXY)
return true;
if (!http_auth_preferences_)
return false;
return http_auth_preferences_->CanUseDefaultCredentials(scheme_host_port_);
}
HttpAuth::AuthorizationResult HttpAuthHandlerNTLM::ParseChallenge(
HttpAuthChallengeTokenizer* tok) {
return mechanism_.ParseChallenge(tok);
}
} // namespace net
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