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// Copyright 2020 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 "services/network/trust_tokens/trust_token_request_canonicalizer.h"
#include <memory>
#include "components/cbor/values.h"
#include "components/cbor/writer.h"
#include "net/url_request/url_request.h"
#include "services/network/public/mojom/trust_tokens.mojom-shared.h"
#include "services/network/trust_tokens/test/trust_token_test_util.h"
#include "services/network/trust_tokens/trust_token_http_headers.h"
#include "services/network/trust_tokens/trust_token_request_canonicalizer.h"
#include "services/network/trust_tokens/trust_token_request_signing_helper.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace network {
// Adopt the Trust Tokens fixture to create URLRequests without boilerplate
using TrustTokenRequestCanonicalizerTest = TrustTokenRequestHelperTest;
// Check that an empty request with an empty public key (and no headers to sign)
// serializes correctly. Expected CBOR maps:
//
// SignRequestData::kHeadersOnly:
// { "public_key": b"key" }
//
// SignRequestData::kInclude:
// { "destination": "", "public_key": b"key" }
TEST_F(TrustTokenRequestCanonicalizerTest, Empty) {
TrustTokenRequestCanonicalizer canonicalizer;
cbor::Value::MapValue expected_cbor;
expected_cbor[cbor::Value(
TrustTokenRequestSigningHelper::kCanonicalizedRequestDataPublicKeyKey)] =
cbor::Value("key", cbor::Value::Type::BYTE_STRING);
std::unique_ptr<net::URLRequest> request = MakeURLRequest("");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kHeadersOnly),
cbor::Writer::Write(cbor::Value(expected_cbor)));
expected_cbor[cbor::Value(TrustTokenRequestSigningHelper::
kCanonicalizedRequestDataDestinationKey)] =
cbor::Value("");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kInclude),
cbor::Writer::Write(cbor::Value(expected_cbor)));
}
// Canonicalize a request with a nonempty public key and a nonempty URL.
//
// SignRequestData::kHeadersOnly:
// { "public_key": b"key" }
//
// SignRequestData::kInclude:
// { "destination": "issuer.com", "public_key": b"key" }
TEST_F(TrustTokenRequestCanonicalizerTest, Simple) {
TrustTokenRequestCanonicalizer canonicalizer;
cbor::Value::MapValue expected_cbor;
expected_cbor[cbor::Value(
TrustTokenRequestSigningHelper::kCanonicalizedRequestDataPublicKeyKey)] =
cbor::Value("key", cbor::Value::Type::BYTE_STRING);
std::unique_ptr<net::URLRequest> request =
MakeURLRequest("https://sub.issuer.com/path?query");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kHeadersOnly),
cbor::Writer::Write(cbor::Value(expected_cbor)));
expected_cbor[cbor::Value(TrustTokenRequestSigningHelper::
kCanonicalizedRequestDataDestinationKey)] =
cbor::Value("issuer.com");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kInclude),
cbor::Writer::Write(cbor::Value(expected_cbor)));
}
// Canonicalize a request with a nonempty public key, some signed headers, and a
// nonempty URL.
//
// Expected CBOR maps:
//
// SignRequestData::kHeadersOnly:
// { "public_key": b"key", "first_header": "first_header_value",
// "second_header": "second_header_value" }
//
// SignRequestData::kInclude:
// { "destination": "issuer.com", "public_key": b"key",
// "first_header": "first_header_value", "second_header":
// "second_header_value" }
TEST_F(TrustTokenRequestCanonicalizerTest, WithSignedHeaders) {
TrustTokenRequestCanonicalizer canonicalizer;
cbor::Value::MapValue expected_cbor;
expected_cbor[cbor::Value(
TrustTokenRequestSigningHelper::kCanonicalizedRequestDataPublicKeyKey)] =
cbor::Value("key", cbor::Value::Type::BYTE_STRING);
std::unique_ptr<net::URLRequest> request =
MakeURLRequest("https://sub.issuer.com/path?query");
// Capitalization should be normalized.
request->SetExtraRequestHeaderByName("First_HeadER", "first_header_value",
/*overwrite=*/true);
request->SetExtraRequestHeaderByName("second_header", "second_header_value",
/*overwrite=*/true);
request->SetExtraRequestHeaderByName(kTrustTokensRequestHeaderSignedHeaders,
" first_header , second_header ",
/*overwrite=*/true);
expected_cbor[cbor::Value("first_header")] =
cbor::Value("first_header_value");
expected_cbor[cbor::Value("second_header")] =
cbor::Value("second_header_value");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kHeadersOnly),
cbor::Writer::Write(cbor::Value(expected_cbor)));
expected_cbor[cbor::Value(TrustTokenRequestSigningHelper::
kCanonicalizedRequestDataDestinationKey)] =
cbor::Value("issuer.com");
EXPECT_EQ(
canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kInclude),
cbor::Writer::Write(cbor::Value(expected_cbor)));
}
// Canonicalizing a request with a malformed Signed-Headers header should fail.
TEST_F(TrustTokenRequestCanonicalizerTest, RejectsMalformedSignedHeaders) {
TrustTokenRequestCanonicalizer canonicalizer;
std::unique_ptr<net::URLRequest> request =
MakeURLRequest("https://issuer.com/");
// Set the Signed-Headers header to something that is *not* the serialization
// of a Structured Headers token. (Tokens can't start with quotes.)
request->SetExtraRequestHeaderByName(kTrustTokensRequestHeaderSignedHeaders,
"\"", /*overwrite=*/true);
EXPECT_FALSE(canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"key", mojom::TrustTokenSignRequestData::kHeadersOnly));
}
// Canonicalizing a request with an empty key should fail.
TEST_F(TrustTokenRequestCanonicalizerTest, RejectsEmptyKey) {
TrustTokenRequestCanonicalizer canonicalizer;
std::unique_ptr<net::URLRequest> request =
MakeURLRequest("https://issuer.com/");
EXPECT_FALSE(canonicalizer.Canonicalize(
request->url(), request->extra_request_headers(),
/*public_key=*/"", mojom::TrustTokenSignRequestData::kHeadersOnly));
}
} // namespace network
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