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/*
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/rtc_certificate_generator.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <utility>
#include "api/scoped_refptr.h"
#include "api/test/rtc_error_matchers.h"
#include "api/units/time_delta.h"
#include "rtc_base/checks.h"
#include "rtc_base/rtc_certificate.h"
#include "rtc_base/ssl_identity.h"
#include "rtc_base/thread.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/wait_until.h"
namespace webrtc {
class RTCCertificateGeneratorFixture {
public:
RTCCertificateGeneratorFixture()
: signaling_thread_(Thread::Current()),
worker_thread_(Thread::Create()),
generate_async_completed_(false) {
RTC_CHECK(signaling_thread_);
RTC_CHECK(worker_thread_->Start());
generator_.reset(
new RTCCertificateGenerator(signaling_thread_, worker_thread_.get()));
}
RTCCertificateGenerator* generator() const { return generator_.get(); }
RTCCertificate* certificate() const { return certificate_.get(); }
RTCCertificateGeneratorInterface::Callback OnGenerated() {
return [this](scoped_refptr<RTCCertificate> certificate) mutable {
RTC_CHECK(signaling_thread_->IsCurrent());
certificate_ = std::move(certificate);
generate_async_completed_ = true;
};
}
bool GenerateAsyncCompleted() {
RTC_CHECK(signaling_thread_->IsCurrent());
if (generate_async_completed_) {
// Reset flag so that future generation requests are not considered done.
generate_async_completed_ = false;
return true;
}
return false;
}
protected:
Thread* const signaling_thread_;
std::unique_ptr<Thread> worker_thread_;
std::unique_ptr<RTCCertificateGenerator> generator_;
scoped_refptr<RTCCertificate> certificate_;
bool generate_async_completed_;
};
class RTCCertificateGeneratorTest : public ::testing::Test {
public:
protected:
static constexpr TimeDelta kGenerationTimeoutMs = TimeDelta::Millis(10000);
AutoThread main_thread_;
RTCCertificateGeneratorFixture fixture_;
};
TEST_F(RTCCertificateGeneratorTest, GenerateECDSA) {
EXPECT_TRUE(RTCCertificateGenerator::GenerateCertificate(KeyParams::ECDSA(),
std::nullopt));
}
TEST_F(RTCCertificateGeneratorTest, GenerateRSA) {
EXPECT_TRUE(RTCCertificateGenerator::GenerateCertificate(KeyParams::RSA(),
std::nullopt));
}
TEST_F(RTCCertificateGeneratorTest, GenerateAsyncECDSA) {
EXPECT_FALSE(fixture_.certificate());
fixture_.generator()->GenerateCertificateAsync(
KeyParams::ECDSA(), std::nullopt, fixture_.OnGenerated());
// Until generation has completed, the certificate is null. Since this is an
// async call, generation must not have completed until we process messages
// posted to this thread (which is done by `EXPECT_TRUE_WAIT`).
EXPECT_FALSE(fixture_.GenerateAsyncCompleted());
EXPECT_FALSE(fixture_.certificate());
EXPECT_THAT(WaitUntil([&] { return fixture_.GenerateAsyncCompleted(); },
::testing::IsTrue(), {.timeout = kGenerationTimeoutMs}),
IsRtcOk());
EXPECT_TRUE(fixture_.certificate());
}
TEST_F(RTCCertificateGeneratorTest, GenerateWithExpires) {
// By generating two certificates with different expiration we can compare the
// two expiration times relative to each other without knowing the current
// time relative to epoch, 1970-01-01T00:00:00Z. This verifies that the
// expiration parameter is correctly used relative to the generator's clock,
// but does not verify that this clock is relative to epoch.
// Generate a certificate that expires immediately.
scoped_refptr<RTCCertificate> cert_a =
RTCCertificateGenerator::GenerateCertificate(KeyParams::ECDSA(), 0);
EXPECT_TRUE(cert_a);
// Generate a certificate that expires in one minute.
const uint64_t kExpiresMs = 60000;
scoped_refptr<RTCCertificate> cert_b =
RTCCertificateGenerator::GenerateCertificate(KeyParams::ECDSA(),
kExpiresMs);
EXPECT_TRUE(cert_b);
// Verify that `cert_b` expires approximately `kExpiresMs` after `cert_a`
// (allowing a +/- 1 second plus maximum generation time difference).
EXPECT_GT(cert_b->Expires(), cert_a->Expires());
uint64_t expires_diff = cert_b->Expires() - cert_a->Expires();
EXPECT_GE(expires_diff, kExpiresMs);
EXPECT_LE(expires_diff, kExpiresMs + 2 * kGenerationTimeoutMs.ms() + 1000);
}
TEST_F(RTCCertificateGeneratorTest, GenerateWithInvalidParamsShouldFail) {
KeyParams invalid_params = KeyParams::RSA(0, 0);
EXPECT_FALSE(invalid_params.IsValid());
EXPECT_FALSE(RTCCertificateGenerator::GenerateCertificate(invalid_params,
std::nullopt));
fixture_.generator()->GenerateCertificateAsync(invalid_params, std::nullopt,
fixture_.OnGenerated());
EXPECT_THAT(WaitUntil([&] { return fixture_.GenerateAsyncCompleted(); },
::testing::IsTrue(), {.timeout = kGenerationTimeoutMs}),
IsRtcOk());
EXPECT_FALSE(fixture_.certificate());
}
} // namespace webrtc
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