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59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
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// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/base64.h"
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#include "base/strings/string_util.h"
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#include "net/http/http_auth_challenge_tokenizer.h"
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#include "net/http/http_auth_multi_round_parse.h"
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namespace net {
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namespace {
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// Check that the scheme in the challenge matches the expected scheme
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bool SchemeIsValid(const std::string& scheme,
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HttpAuthChallengeTokenizer* challenge) {
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// There is no guarantee that challenge->scheme() is valid ASCII, but
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// LowerCaseEqualsASCII will do the right thing even if it isn't.
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return base::LowerCaseEqualsASCII(challenge->scheme(),
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base::ToLowerASCII(scheme));
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}
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} // namespace
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HttpAuth::AuthorizationResult ParseFirstRoundChallenge(
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const std::string& scheme,
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HttpAuthChallengeTokenizer* challenge) {
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// Verify the challenge's auth-scheme.
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if (!SchemeIsValid(scheme, challenge))
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return HttpAuth::AUTHORIZATION_RESULT_INVALID;
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std::string encoded_auth_token = challenge->base64_param();
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if (!encoded_auth_token.empty()) {
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return HttpAuth::AUTHORIZATION_RESULT_INVALID;
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}
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return HttpAuth::AUTHORIZATION_RESULT_ACCEPT;
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}
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HttpAuth::AuthorizationResult ParseLaterRoundChallenge(
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const std::string& scheme,
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HttpAuthChallengeTokenizer* challenge,
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std::string* encoded_token,
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std::string* decoded_token) {
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// Verify the challenge's auth-scheme.
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if (!SchemeIsValid(scheme, challenge))
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return HttpAuth::AUTHORIZATION_RESULT_INVALID;
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*encoded_token = challenge->base64_param();
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if (encoded_token->empty())
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return HttpAuth::AUTHORIZATION_RESULT_REJECT;
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// Make sure the additional token is base64 encoded.
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if (!base::Base64Decode(*encoded_token, decoded_token))
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return HttpAuth::AUTHORIZATION_RESULT_INVALID;
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return HttpAuth::AUTHORIZATION_RESULT_ACCEPT;
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}
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} // namespace net
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