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/*
* Copyright 2012 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 P2P_TEST_TEST_TURN_SERVER_H_
#define P2P_TEST_TEST_TURN_SERVER_H_
#include <cstddef>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/sequence_checker.h"
#include "api/transport/stun.h"
#include "p2p/base/basic_packet_socket_factory.h"
#include "p2p/base/port_interface.h"
#include "p2p/test/turn_server.h"
#include "rtc_base/async_udp_socket.h"
#include "rtc_base/checks.h"
#include "rtc_base/net_helpers.h"
#include "rtc_base/socket.h"
#include "rtc_base/socket_address.h"
#include "rtc_base/socket_factory.h"
#include "rtc_base/ssl_adapter.h"
#include "rtc_base/ssl_identity.h"
#include "rtc_base/ssl_stream_adapter.h"
#include "rtc_base/thread.h"
namespace webrtc {
static const char kTestRealm[] = "example.org";
static const char kTestSoftware[] = "TestTurnServer";
class TestTurnRedirector : public TurnRedirectInterface {
public:
explicit TestTurnRedirector(const std::vector<SocketAddress>& addresses)
: alternate_server_addresses_(addresses),
iter_(alternate_server_addresses_.begin()) {}
virtual bool ShouldRedirect(const SocketAddress&, SocketAddress* out) {
if (!out || iter_ == alternate_server_addresses_.end()) {
return false;
}
*out = *iter_++;
return true;
}
private:
const std::vector<SocketAddress>& alternate_server_addresses_;
std::vector<SocketAddress>::const_iterator iter_;
};
class TestTurnServer : public TurnAuthInterface {
public:
TestTurnServer(Thread* thread,
SocketFactory* socket_factory,
const SocketAddress& int_addr,
const SocketAddress& udp_ext_addr,
ProtocolType int_protocol = webrtc::PROTO_UDP,
bool ignore_bad_cert = true,
absl::string_view common_name = "test turn server")
: server_(thread), socket_factory_(socket_factory) {
AddInternalSocket(int_addr, int_protocol, ignore_bad_cert, common_name);
server_.SetExternalSocketFactory(
new BasicPacketSocketFactory(socket_factory), udp_ext_addr);
server_.set_realm(kTestRealm);
server_.set_software(kTestSoftware);
server_.set_auth_hook(this);
}
~TestTurnServer() { RTC_DCHECK(thread_checker_.IsCurrent()); }
void set_enable_otu_nonce(bool enable) {
RTC_DCHECK(thread_checker_.IsCurrent());
server_.set_enable_otu_nonce(enable);
}
TurnServer* server() {
RTC_DCHECK(thread_checker_.IsCurrent());
return &server_;
}
void set_redirect_hook(TurnRedirectInterface* redirect_hook) {
RTC_DCHECK(thread_checker_.IsCurrent());
server_.set_redirect_hook(redirect_hook);
}
void set_enable_permission_checks(bool enable) {
RTC_DCHECK(thread_checker_.IsCurrent());
server_.set_enable_permission_checks(enable);
}
void AddInternalSocket(const SocketAddress& int_addr,
ProtocolType proto,
bool ignore_bad_cert = true,
absl::string_view common_name = "test turn server") {
RTC_DCHECK(thread_checker_.IsCurrent());
if (proto == webrtc::PROTO_UDP) {
server_.AddInternalSocket(
AsyncUDPSocket::Create(socket_factory_, int_addr), proto);
} else if (proto == webrtc::PROTO_TCP || proto == webrtc::PROTO_TLS) {
// For TCP we need to create a server socket which can listen for incoming
// new connections.
Socket* socket = socket_factory_->CreateSocket(AF_INET, SOCK_STREAM);
socket->Bind(int_addr);
socket->Listen(5);
if (proto == webrtc::PROTO_TLS) {
// For TLS, wrap the TCP socket with an SSL adapter. The adapter must
// be configured with a self-signed certificate for testing.
// Additionally, the client will not present a valid certificate, so we
// must not fail when checking the peer's identity.
std::unique_ptr<SSLAdapterFactory> ssl_adapter_factory =
SSLAdapterFactory::Create();
ssl_adapter_factory->SetRole(webrtc::SSL_SERVER);
ssl_adapter_factory->SetIdentity(
SSLIdentity::Create(common_name, KeyParams()));
ssl_adapter_factory->SetIgnoreBadCert(ignore_bad_cert);
server_.AddInternalServerSocket(socket, proto,
std::move(ssl_adapter_factory));
} else {
server_.AddInternalServerSocket(socket, proto);
}
} else {
RTC_DCHECK_NOTREACHED() << "Unknown protocol type: " << proto;
}
}
// Finds the first allocation in the server allocation map with a source
// ip and port matching the socket address provided.
TurnServerAllocation* FindAllocation(const SocketAddress& src) {
RTC_DCHECK(thread_checker_.IsCurrent());
const TurnServer::AllocationMap& map = server_.allocations();
for (TurnServer::AllocationMap::const_iterator it = map.begin();
it != map.end(); ++it) {
if (src == it->first.src()) {
return it->second.get();
}
}
return NULL;
}
private:
// For this test server, succeed if the password is the same as the username.
// Obviously, do not use this in a production environment.
virtual bool GetKey(absl::string_view username,
absl::string_view realm,
std::string* key) {
RTC_DCHECK(thread_checker_.IsCurrent());
return ComputeStunCredentialHash(std::string(username), std::string(realm),
std::string(username), key);
}
TurnServer server_;
SocketFactory* socket_factory_;
SequenceChecker thread_checker_;
};
} // namespace webrtc
// Re-export symbols from the webrtc namespace for backwards compatibility.
// TODO(bugs.webrtc.org/4222596): Remove once all references are updated.
#ifdef WEBRTC_ALLOW_DEPRECATED_NAMESPACES
namespace cricket {
using ::webrtc::kTestRealm;
using ::webrtc::kTestSoftware;
using ::webrtc::TestTurnRedirector;
using ::webrtc::TestTurnServer;
} // namespace cricket
#endif // WEBRTC_ALLOW_DEPRECATED_NAMESPACES
#endif // P2P_TEST_TEST_TURN_SERVER_H_
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