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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_basic.h"
#include <string>
#include "base/base64.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "net/base/net_errors.h"
#include "net/http/http_auth.h"
namespace net {
// Note that if a realm was not specified, we will default it to "";
// so specifying 'Basic realm=""' is equivalent to 'Basic'.
//
// This is more generous than RFC 2617, which is pretty clear in the
// production of challenge that realm is required.
//
// We allow it to be compatibility with certain embedded webservers that don't
// include a realm (see http://crbug.com/20984.)
bool HttpAuthHandlerBasic::Init(HttpAuth::ChallengeTokenizer* challenge) {
scheme_ = "basic";
score_ = 1;
properties_ = 0;
// Verify the challenge's auth-scheme.
if (!challenge->valid() ||
!LowerCaseEqualsASCII(challenge->scheme(), "basic"))
return false;
// Extract the realm (may be missing).
while (challenge->GetNext()) {
if (LowerCaseEqualsASCII(challenge->name(), "realm"))
realm_ = challenge->unquoted_value();
}
return challenge->valid();
}
int HttpAuthHandlerBasic::GenerateAuthToken(
const std::wstring& username,
const std::wstring& password,
const HttpRequestInfo*,
const ProxyInfo*,
std::string* auth_token) {
// TODO(eroman): is this the right encoding of username/password?
std::string base64_username_password;
if (!base::Base64Encode(WideToUTF8(username) + ":" + WideToUTF8(password),
&base64_username_password)) {
LOG(ERROR) << "Unexpected problem Base64 encoding.";
return ERR_UNEXPECTED;
}
*auth_token = "Basic " + base64_username_password;
return OK;
}
int HttpAuthHandlerBasic::GenerateDefaultAuthToken(
const HttpRequestInfo* request,
const ProxyInfo* proxy,
std::string* auth_token) {
NOTREACHED();
LOG(ERROR) << ErrorToString(ERR_NOT_IMPLEMENTED);
return ERR_NOT_IMPLEMENTED;
}
HttpAuthHandlerBasic::Factory::Factory() {
}
HttpAuthHandlerBasic::Factory::~Factory() {
}
int HttpAuthHandlerBasic::Factory::CreateAuthHandler(
HttpAuth::ChallengeTokenizer* challenge,
HttpAuth::Target target,
const GURL& origin,
CreateReason reason,
int digest_nonce_count,
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 HttpAuthHandlerBasic());
if (!tmp_handler->InitFromChallenge(challenge, target, origin))
return ERR_INVALID_RESPONSE;
handler->swap(tmp_handler);
return OK;
}
} // namespace net
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