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// Copyright 2015 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 "mock_cert_verifier.h"
#include <string>
#include <vector>
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/test/test_support_android.h"
#include "crypto/sha2.h"
#include "jni/MockCertVerifier_jni.h"
#include "net/base/net_errors.h"
#include "net/cert/asn1_util.h"
#include "net/cert/cert_verifier.h"
#include "net/cert/cert_verify_result.h"
#include "net/cert/mock_cert_verifier.h"
#include "net/test/cert_test_util.h"
#include "net/test/test_data_directory.h"
using base::android::JavaParamRef;
namespace cronet {
namespace {
// Populates |out_hash_value| with the SHA256 hash of the |cert| public key.
// Returns true on success.
static bool CalculatePublicKeySha256(const net::X509Certificate& cert,
net::HashValue* out_hash_value) {
// Convert the cert to DER encoded bytes.
std::string der_cert_bytes;
net::X509Certificate::OSCertHandle cert_handle = cert.os_cert_handle();
if (!net::X509Certificate::GetDEREncoded(cert_handle, &der_cert_bytes)) {
LOG(INFO) << "Unable to convert the given cert to DER encoding";
return false;
}
// Extract the public key from the cert.
base::StringPiece spki_bytes;
if (!net::asn1::ExtractSPKIFromDERCert(der_cert_bytes, &spki_bytes)) {
LOG(INFO) << "Unable to retrieve the public key from the DER cert";
return false;
}
// Calculate SHA256 hash of public key bytes.
out_hash_value->tag = net::HASH_VALUE_SHA256;
crypto::SHA256HashString(spki_bytes, out_hash_value->data(),
crypto::kSHA256Length);
return true;
}
} // namespace
static jlong CreateMockCertVerifier(
JNIEnv* env,
const JavaParamRef<jclass>& jcaller,
const JavaParamRef<jobjectArray>& jcerts,
const jboolean jknown_root,
const JavaParamRef<jstring>& jtest_data_dir) {
base::FilePath test_data_dir(
base::android::ConvertJavaStringToUTF8(env, jtest_data_dir));
base::InitAndroidTestPaths(test_data_dir);
std::vector<std::string> certs;
base::android::AppendJavaStringArrayToStringVector(env, jcerts, &certs);
net::MockCertVerifier* mock_cert_verifier = new net::MockCertVerifier();
for (const auto& cert : certs) {
net::CertVerifyResult verify_result;
verify_result.verified_cert =
net::ImportCertFromFile(net::GetTestCertsDirectory(), cert);
// By default, HPKP verification is enabled for known trust roots only.
verify_result.is_issued_by_known_root = jknown_root;
// Calculate the public key hash and add it to the verify_result.
net::HashValue hashValue;
CHECK(CalculatePublicKeySha256(*verify_result.verified_cert.get(),
&hashValue));
verify_result.public_key_hashes.push_back(hashValue);
mock_cert_verifier->AddResultForCert(verify_result.verified_cert.get(),
verify_result, net::OK);
}
return reinterpret_cast<jlong>(mock_cert_verifier);
}
bool RegisterMockCertVerifier(JNIEnv* env) {
return RegisterNativesImpl(env);
}
} // namespace cronet
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