blob: 40e094a344f1db05e8bc5143626420a022263818 [file] [log] [blame]
// Copyright (c) 2011 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 "build/build_config.h"
// This contains the portable and the SSPI implementations for NTLM.
// We use NTLM_SSPI for Windows, and NTLM_PORTABLE for other platforms.
#if defined(OS_WIN)
#define NTLM_SSPI
#if defined(NTLM_SSPI)
#define SECURITY_WIN32 1
#include <windows.h>
#include <security.h>
#include "net/http/http_auth_sspi_win.h"
#include <string>
#include "base/basictypes.h"
#include "base/string16.h"
#include "net/http/http_auth_handler.h"
#include "net/http/http_auth_handler_factory.h"
namespace net {
class URLSecurityManager;
// Code for handling HTTP NTLM authentication.
class NET_EXPORT_PRIVATE HttpAuthHandlerNTLM : public HttpAuthHandler {
class Factory : public HttpAuthHandlerFactory {
virtual ~Factory();
virtual int CreateAuthHandler(
HttpAuth::ChallengeTokenizer* challenge,
HttpAuth::Target target,
const GURL& origin,
CreateReason reason,
int digest_nonce_count,
const BoundNetLog& net_log,
scoped_ptr<HttpAuthHandler>* handler) override;
#if defined(NTLM_SSPI)
// Set the SSPILibrary to use. Typically the only callers which need to use
// this are unit tests which pass in a mocked-out version of the SSPI
// library. After the call |sspi_library| will be owned by this Factory and
// will be destroyed when the Factory is destroyed.
void set_sspi_library(SSPILibrary* sspi_library) {
#endif // defined(NTLM_SSPI)
#if defined(NTLM_SSPI)
ULONG max_token_length_;
bool first_creation_;
bool is_unsupported_;
scoped_ptr<SSPILibrary> sspi_library_;
#endif // defined(NTLM_SSPI)
#if defined(NTLM_PORTABLE)
// A function that generates n random bytes in the output buffer.
typedef void (*GenerateRandomProc)(uint8* output, size_t n);
// A function that returns the local host name. Returns an empty string if
// the local host name is not available.
typedef std::string (*HostNameProc)();
// For unit tests to override and restore the GenerateRandom and
// GetHostName functions.
class ScopedProcSetter {
ScopedProcSetter(GenerateRandomProc random_proc,
HostNameProc host_name_proc) {
old_random_proc_ = SetGenerateRandomProc(random_proc);
old_host_name_proc_ = SetHostNameProc(host_name_proc);
~ScopedProcSetter() {
GenerateRandomProc old_random_proc_;
HostNameProc old_host_name_proc_;
#if defined(NTLM_PORTABLE)
#if defined(NTLM_SSPI)
HttpAuthHandlerNTLM(SSPILibrary* sspi_library, ULONG max_token_length,
URLSecurityManager* url_security_manager);
virtual bool NeedsIdentity() override;
virtual bool AllowsDefaultCredentials() override;
virtual HttpAuth::AuthorizationResult HandleAnotherChallenge(
HttpAuth::ChallengeTokenizer* challenge) override;
// This function acquires a credentials handle in the SSPI implementation.
// It does nothing in the portable implementation.
int InitializeBeforeFirstChallenge();
virtual bool Init(HttpAuth::ChallengeTokenizer* tok) override;
virtual int GenerateAuthTokenImpl(const AuthCredentials* credentials,
const HttpRequestInfo* request,
const CompletionCallback& callback,
std::string* auth_token) override;
virtual ~HttpAuthHandlerNTLM();
#if defined(NTLM_PORTABLE)
// For unit tests to override the GenerateRandom and GetHostName functions.
// Returns the old function.
static GenerateRandomProc SetGenerateRandomProc(GenerateRandomProc proc);
static HostNameProc SetHostNameProc(HostNameProc proc);
// Parse the challenge, saving the results into this instance.
HttpAuth::AuthorizationResult ParseChallenge(
HttpAuth::ChallengeTokenizer* tok, bool initial_challenge);
// Given an input token received from the server, generate the next output
// token to be sent to the server.
int GetNextToken(const void* in_token,
uint32 in_token_len,
void** out_token,
uint32* out_token_len);
// Create an NTLM SPN to identify the |origin| server.
static std::wstring CreateSPN(const GURL& origin);
#if defined(NTLM_SSPI)
HttpAuthSSPI auth_sspi_;
#if defined(NTLM_PORTABLE)
static GenerateRandomProc generate_random_proc_;
static HostNameProc get_host_name_proc_;
string16 domain_;
AuthCredentials credentials_;
// The base64-encoded string following "NTLM" in the "WWW-Authenticate" or
// "Proxy-Authenticate" response header.
std::string auth_data_;
#if defined(NTLM_SSPI)
URLSecurityManager* url_security_manager_;
} // namespace net