Nagram/TMessagesProj/jni/webrtc/rtc_base/rtc_certificate_generator.h
2020-08-14 19:58:22 +03:00

90 lines
3.5 KiB
C++

/*
* 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.
*/
#ifndef RTC_BASE_RTC_CERTIFICATE_GENERATOR_H_
#define RTC_BASE_RTC_CERTIFICATE_GENERATOR_H_
#include <stdint.h>
#include "absl/types/optional.h"
#include "api/scoped_refptr.h"
#include "rtc_base/ref_count.h"
#include "rtc_base/rtc_certificate.h"
#include "rtc_base/ssl_identity.h"
#include "rtc_base/system/rtc_export.h"
#include "rtc_base/thread.h"
namespace rtc {
// See |RTCCertificateGeneratorInterface::GenerateCertificateAsync|.
class RTCCertificateGeneratorCallback : public RefCountInterface {
public:
virtual void OnSuccess(const scoped_refptr<RTCCertificate>& certificate) = 0;
virtual void OnFailure() = 0;
protected:
~RTCCertificateGeneratorCallback() override {}
};
// Generates |RTCCertificate|s.
// See |RTCCertificateGenerator| for the WebRTC repo's implementation.
class RTCCertificateGeneratorInterface {
public:
virtual ~RTCCertificateGeneratorInterface() {}
// Generates a certificate asynchronously on the worker thread.
// Must be called on the signaling thread. The |callback| is invoked with the
// result on the signaling thread. |exipres_ms| optionally specifies for how
// long we want the certificate to be valid, but the implementation may choose
// its own restrictions on the expiration time.
virtual void GenerateCertificateAsync(
const KeyParams& key_params,
const absl::optional<uint64_t>& expires_ms,
const scoped_refptr<RTCCertificateGeneratorCallback>& callback) = 0;
};
// Standard implementation of |RTCCertificateGeneratorInterface|.
// The static function |GenerateCertificate| generates a certificate on the
// current thread. The |RTCCertificateGenerator| instance generates certificates
// asynchronously on the worker thread with |GenerateCertificateAsync|.
class RTC_EXPORT RTCCertificateGenerator
: public RTCCertificateGeneratorInterface {
public:
// Generates a certificate on the current thread. Returns null on failure.
// If |expires_ms| is specified, the certificate will expire in approximately
// that many milliseconds from now. |expires_ms| is limited to a year, a
// larger value than that is clamped down to a year. If |expires_ms| is not
// specified, a default expiration time is used.
static scoped_refptr<RTCCertificate> GenerateCertificate(
const KeyParams& key_params,
const absl::optional<uint64_t>& expires_ms);
RTCCertificateGenerator(Thread* signaling_thread, Thread* worker_thread);
~RTCCertificateGenerator() override {}
// |RTCCertificateGeneratorInterface| overrides.
// If |expires_ms| is specified, the certificate will expire in approximately
// that many milliseconds from now. |expires_ms| is limited to a year, a
// larger value than that is clamped down to a year. If |expires_ms| is not
// specified, a default expiration time is used.
void GenerateCertificateAsync(
const KeyParams& key_params,
const absl::optional<uint64_t>& expires_ms,
const scoped_refptr<RTCCertificateGeneratorCallback>& callback) override;
private:
Thread* const signaling_thread_;
Thread* const worker_thread_;
};
} // namespace rtc
#endif // RTC_BASE_RTC_CERTIFICATE_GENERATOR_H_