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|
/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kASIO
#include "mongo/platform/basic.h"
#include <boost/optional.hpp>
#include "mongo/base/status_with.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/wire_version.h"
#include "mongo/executor/async_mock_stream_factory.h"
#include "mongo/executor/async_timer_mock.h"
#include "mongo/executor/network_interface_asio.h"
#include "mongo/executor/network_interface_asio_test_utils.h"
#include "mongo/executor/test_network_connection_hook.h"
#include "mongo/rpc/factory.h"
#include "mongo/rpc/legacy_reply_builder.h"
#include "mongo/rpc/metadata/egress_metadata_hook_list.h"
#include "mongo/stdx/memory.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/log.h"
#include "mongo/util/net/message.h"
#include "mongo/util/scopeguard.h"
namespace mongo {
namespace executor {
namespace {
using ResponseStatus = TaskExecutor::ResponseStatus;
HostAndPort testHost{"localhost", 20000};
void initWireSpecMongoD() {
WireSpec& spec = WireSpec::instance();
// accept from any version
spec.incoming.minWireVersion = RELEASE_2_4_AND_BEFORE;
spec.incoming.maxWireVersion = COMMANDS_ACCEPT_WRITE_CONCERN;
// connect to any version
spec.outgoing.minWireVersion = RELEASE_2_4_AND_BEFORE;
spec.outgoing.maxWireVersion = COMMANDS_ACCEPT_WRITE_CONCERN;
}
// Utility function to use with mock streams
RemoteCommandResponse simulateIsMaster(RemoteCommandRequest request) {
ASSERT_EQ(std::string{request.cmdObj.firstElementFieldName()}, "isMaster");
ASSERT_EQ(request.dbname, "admin");
RemoteCommandResponse response;
response.data = BSON("minWireVersion" << mongo::WireSpec::instance().incoming.minWireVersion
<< "maxWireVersion"
<< mongo::WireSpec::instance().incoming.maxWireVersion);
return response;
}
class NetworkInterfaceASIOTest : public mongo::unittest::Test {
public:
void setUp() override {
initWireSpecMongoD();
NetworkInterfaceASIO::Options options;
// Use mock timer factory
auto timerFactory = stdx::make_unique<AsyncTimerFactoryMock>();
_timerFactory = timerFactory.get();
options.timerFactory = std::move(timerFactory);
auto factory = stdx::make_unique<AsyncMockStreamFactory>();
// keep unowned pointer, but pass ownership to NIA
_streamFactory = factory.get();
options.streamFactory = std::move(factory);
_net = stdx::make_unique<NetworkInterfaceASIO>(std::move(options));
_net->startup();
}
void tearDown() override {
if (!_net->inShutdown()) {
_net->shutdown();
}
}
Deferred<RemoteCommandResponse> startCommand(const TaskExecutor::CallbackHandle& cbHandle,
RemoteCommandRequest& request) {
Deferred<RemoteCommandResponse> deferredResponse;
ASSERT_OK(net().startCommand(
cbHandle, request, [deferredResponse](ResponseStatus response) mutable {
deferredResponse.emplace(std::move(response));
}));
return deferredResponse;
}
// Helper to run startCommand and wait for it
RemoteCommandResponse startCommandSync(RemoteCommandRequest& request) {
auto deferred = startCommand(makeCallbackHandle(), request);
// wait for the operation to complete
auto& result = deferred.get();
return result;
}
NetworkInterfaceASIO& net() {
return *_net;
}
AsyncMockStreamFactory& streamFactory() {
return *_streamFactory;
}
AsyncTimerFactoryMock& timerFactory() {
return *_timerFactory;
}
void assertNumOps(uint64_t canceled, uint64_t timedOut, uint64_t failed, uint64_t succeeded) {
ASSERT_EQ(canceled, net().getNumCanceledOps());
ASSERT_EQ(timedOut, net().getNumTimedOutOps());
ASSERT_EQ(failed, net().getNumFailedOps());
ASSERT_EQ(succeeded, net().getNumSucceededOps());
}
protected:
AsyncTimerFactoryMock* _timerFactory;
AsyncMockStreamFactory* _streamFactory;
std::unique_ptr<NetworkInterfaceASIO> _net;
};
TEST_F(NetworkInterfaceASIOTest, CancelMissingOperation) {
// This is just a sanity check, this action should have no effect.
net().cancelCommand(makeCallbackHandle());
assertNumOps(0u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, CancelOperation) {
auto cbh = makeCallbackHandle();
// Kick off our operation
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr};
auto deferred = startCommand(cbh, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
// Cancel operation while blocked in the write for determinism. By calling cancel here we
// ensure that it is not a no-op and that the asio::operation_aborted error will always
// be returned to the NIA.
WriteEvent write{stream};
net().cancelCommand(cbh);
}
// Wait for op to complete, assert that it was canceled.
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::CallbackCanceled, result.status);
ASSERT(result.elapsedMillis);
assertNumOps(1u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, ImmediateCancel) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr};
auto deferred = startCommand(cbh, request);
// Cancel immediately
net().cancelCommand(cbh);
// Allow stream to connect so operation can return
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::CallbackCanceled, result.status);
ASSERT(result.elapsedMillis);
// expect 0 completed ops because the op was canceled before getting a connection
assertNumOps(1u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, LateCancel) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr};
auto deferred = startCommand(cbh, request);
// Allow stream to connect so operation can return
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
// Simulate user command
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
RemoteCommandResponse response;
response.data = BSONObj();
response.metadata = BSONObj();
return response;
});
// Allow to complete, then cancel, nothing should happen.
auto& result = deferred.get();
net().cancelCommand(cbh);
ASSERT(result.isOK());
ASSERT(result.elapsedMillis);
assertNumOps(0u, 0u, 0u, 1u);
}
TEST_F(NetworkInterfaceASIOTest, CancelWithNetworkError) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr};
auto deferred = startCommand(cbh, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
WriteEvent{stream}.skip();
ReadEvent read{stream};
// Trigger both a cancellation and a network error
stream->setError(make_error_code(ErrorCodes::HostUnreachable));
net().cancelCommand(cbh);
}
// Wait for op to complete, assert that cancellation error had precedence.
auto& result = deferred.get();
ASSERT(result.status == ErrorCodes::CallbackCanceled);
ASSERT(result.elapsedMillis);
assertNumOps(1u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, CancelWithTimeout) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr};
auto deferred = startCommand(cbh, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
WriteEvent write{stream};
// Trigger both a cancellation and a timeout
net().cancelCommand(cbh);
timerFactory().fastForward(Milliseconds(500));
}
// Wait for op to complete, assert that cancellation error had precedence.
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::CallbackCanceled, result.status);
ASSERT(result.elapsedMillis);
assertNumOps(1u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, TimeoutWithNetworkError) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{
testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr, Milliseconds(1000)};
auto deferred = startCommand(cbh, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
WriteEvent{stream}.skip();
ReadEvent read{stream};
// Trigger both a timeout and a network error
stream->setError(make_error_code(ErrorCodes::HostUnreachable));
timerFactory().fastForward(Milliseconds(2000));
}
// Wait for op to complete, assert that timeout had precedence.
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::ExceededTimeLimit, result.status);
ASSERT(result.elapsedMillis);
assertNumOps(0u, 1u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, CancelWithTimeoutAndNetworkError) {
auto cbh = makeCallbackHandle();
RemoteCommandRequest request{
testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr, Milliseconds(1000)};
auto deferred = startCommand(cbh, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
WriteEvent{stream}.skip();
ReadEvent read{stream};
// Trigger a timeout, a cancellation, and a network error
stream->setError(make_error_code(ErrorCodes::HostUnreachable));
timerFactory().fastForward(Milliseconds(2000));
net().cancelCommand(cbh);
}
// Wait for op to complete, assert that the cancellation had precedence.
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::CallbackCanceled, result.status);
ASSERT(result.elapsedMillis);
assertNumOps(1u, 0u, 0u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, AsyncOpTimeout) {
// Kick off operation
auto cb = makeCallbackHandle();
Milliseconds timeout(1000);
RemoteCommandRequest request{testHost, "testDB", BSON("a" << 1), BSONObj(), nullptr, timeout};
auto deferred = startCommand(cb, request);
// Create and initialize a stream so operation can begin
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// Simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
{
// Wait for the operation to block on write so we know it's been added.
WriteEvent write{stream};
// Get the timer factory
auto& factory = timerFactory();
// Advance clock but not enough to force a timeout, assert still active
factory.fastForward(Milliseconds(500));
ASSERT(!deferred.hasCompleted());
// Advance clock and force timeout
factory.fastForward(Milliseconds(500));
}
auto& result = deferred.get();
ASSERT_EQ(ErrorCodes::ExceededTimeLimit, result.status);
ASSERT(result.elapsedMillis);
assertNumOps(0u, 1u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, StartCommand) {
RemoteCommandRequest request{testHost, "testDB", BSON("foo" << 1), BSON("bar" << 1), nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
// Allow stream to connect.
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
auto expectedMetadata = BSON("meep"
<< "beep");
auto expectedCommandReply = BSON("boop"
<< "bop"
<< "ok"
<< 1.0);
// simulate user command
stream->simulateServer(
rpc::Protocol::kOpCommandV1, [&](RemoteCommandRequest request) -> RemoteCommandResponse {
ASSERT_EQ(std::string{request.cmdObj.firstElementFieldName()}, "foo");
ASSERT_EQ(request.dbname, "testDB");
RemoteCommandResponse response;
response.data = expectedCommandReply;
response.metadata = expectedMetadata;
return response;
});
auto& res = deferred.get();
ASSERT(res.elapsedMillis);
uassertStatusOK(res.status);
ASSERT_BSONOBJ_EQ(res.data, expectedCommandReply);
ASSERT_BSONOBJ_EQ(res.metadata, expectedMetadata);
assertNumOps(0u, 0u, 0u, 1u);
}
TEST_F(NetworkInterfaceASIOTest, InShutdown) {
ASSERT_FALSE(net().inShutdown());
net().shutdown();
ASSERT(net().inShutdown());
}
TEST_F(NetworkInterfaceASIOTest, StartCommandReturnsNotOKIfShutdownHasStarted) {
net().shutdown();
RemoteCommandRequest request;
ASSERT_NOT_OK(
net().startCommand(makeCallbackHandle(), request, [&](RemoteCommandResponse resp) {}));
}
class MalformedMessageTest : public NetworkInterfaceASIOTest {
public:
using MessageHook = stdx::function<void(MsgData::View)>;
void runMessageTest(ErrorCodes::Error code, bool loadBody, MessageHook hook) {
// Kick off our operation
RemoteCommandRequest request{testHost, "testDB", BSON("ping" << 1), BSONObj(), nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
// Wait for it to block waiting for a write
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
uint32_t messageId = 0;
{
// Get the appropriate message id
WriteEvent write{stream};
std::vector<uint8_t> messageData = stream->popWrite();
messageId =
MsgData::ConstView(reinterpret_cast<const char*>(messageData.data())).getId();
}
// Build a mock reply message
auto replyBuilder = rpc::makeReplyBuilder(rpc::Protocol::kOpCommandV1);
replyBuilder->setCommandReply(BSON("hello!" << 1));
replyBuilder->setMetadata(BSONObj());
auto message = replyBuilder->done();
message.header().setResponseToMsgId(messageId);
auto actualSize = message.header().getLen();
// Allow caller to mess with the Message
hook(message.header());
{
// Load the header
ReadEvent read{stream};
auto headerBytes = reinterpret_cast<const uint8_t*>(message.header().view2ptr());
stream->pushRead({headerBytes, headerBytes + sizeof(MSGHEADER::Value)});
}
if (loadBody) {
// Load the body if we need to
ReadEvent read{stream};
auto dataBytes = reinterpret_cast<const uint8_t*>(message.buf());
auto body = dataBytes;
std::advance(body, sizeof(MSGHEADER::Value));
stream->pushRead({body, dataBytes + static_cast<std::size_t>(actualSize)});
}
auto& response = deferred.get();
ASSERT_EQ(code, response.status);
ASSERT(response.elapsedMillis);
assertNumOps(0u, 0u, 1u, 0u);
}
};
TEST_F(MalformedMessageTest, messageHeaderWrongResponseTo) {
runMessageTest(ErrorCodes::ProtocolError, false, [](MsgData::View message) {
message.setResponseToMsgId(message.getResponseToMsgId() + 1);
});
}
TEST_F(MalformedMessageTest, messageHeaderlenZero) {
runMessageTest(
ErrorCodes::InvalidLength, false, [](MsgData::View message) { message.setLen(0); });
}
TEST_F(MalformedMessageTest, MessageHeaderLenTooSmall) {
runMessageTest(ErrorCodes::InvalidLength, false, [](MsgData::View message) {
message.setLen(6);
}); // min is 16
}
TEST_F(MalformedMessageTest, MessageHeaderLenTooLarge) {
runMessageTest(ErrorCodes::InvalidLength, false, [](MsgData::View message) {
message.setLen(48000001);
}); // max is 48000000
}
TEST_F(MalformedMessageTest, MessageHeaderLenNegative) {
runMessageTest(
ErrorCodes::InvalidLength, false, [](MsgData::View message) { message.setLen(-1); });
}
TEST_F(MalformedMessageTest, MessageLenSmallerThanActual) {
runMessageTest(ErrorCodes::InvalidBSON, true, [](MsgData::View message) {
message.setLen(message.getLen() - 10);
});
}
TEST_F(MalformedMessageTest, FailedToReadAllBytesForMessage) {
runMessageTest(ErrorCodes::InvalidLength, true, [](MsgData::View message) {
message.setLen(message.getLen() + 100);
});
}
TEST_F(MalformedMessageTest, UnsupportedOpcode) {
runMessageTest(ErrorCodes::UnsupportedFormat, true, [](MsgData::View message) {
message.setOperation(2222);
});
}
TEST_F(MalformedMessageTest, MismatchedOpcode) {
runMessageTest(ErrorCodes::UnsupportedFormat, true, [](MsgData::View message) {
message.setOperation(2006);
});
}
class NetworkInterfaceASIOConnectionHookTest : public NetworkInterfaceASIOTest {
public:
void setUp() override {}
void start(std::unique_ptr<NetworkConnectionHook> hook) {
auto factory = stdx::make_unique<AsyncMockStreamFactory>();
// keep unowned pointer, but pass ownership to NIA
_streamFactory = factory.get();
NetworkInterfaceASIO::Options options{};
options.streamFactory = std::move(factory);
options.networkConnectionHook = std::move(hook);
options.timerFactory = stdx::make_unique<AsyncTimerFactoryMock>();
_net = stdx::make_unique<NetworkInterfaceASIO>(std::move(options));
_net->startup();
}
};
TEST_F(NetworkInterfaceASIOConnectionHookTest, InvalidIsMaster) {
auto validationFailedStatus =
Status(ErrorCodes::InterruptedDueToReplStateChange, "operation was interrupted");
start(makeTestHook(
[&](const HostAndPort& remoteHost, const RemoteCommandResponse& isMasterReply) {
return Status(ErrorCodes::UnknownError, "unused");
},
[&](const HostAndPort& remoteHost) -> StatusWith<boost::optional<RemoteCommandRequest>> {
return {boost::none};
},
[&](const HostAndPort& remoteHost, RemoteCommandResponse&& response) {
return Status::OK();
}));
RemoteCommandRequest request{testHost,
"blah",
BSON("foo"
<< "bar"),
nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
RemoteCommandResponse response;
response.data = BSON("ok" << 0.0 << "errmsg"
<< "operation was interrupted"
<< "code"
<< 11602);
return response;
});
// we should stop here.
auto& res = deferred.get();
ASSERT_EQ(validationFailedStatus, res.status);
ASSERT(res.elapsedMillis);
assertNumOps(0u, 0u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOConnectionHookTest, ValidateHostInvalid) {
bool validateCalled = false;
bool hostCorrect = false;
bool isMasterReplyCorrect = false;
bool makeRequestCalled = false;
bool handleReplyCalled = false;
auto validationFailedStatus = Status(ErrorCodes::AlreadyInitialized, "blahhhhh");
start(makeTestHook(
[&](const HostAndPort& remoteHost, const RemoteCommandResponse& isMasterReply) {
validateCalled = true;
hostCorrect = (remoteHost == testHost);
isMasterReplyCorrect = (isMasterReply.data["TESTKEY"].str() == "TESTVALUE");
return validationFailedStatus;
},
[&](const HostAndPort& remoteHost) -> StatusWith<boost::optional<RemoteCommandRequest>> {
makeRequestCalled = true;
return {boost::none};
},
[&](const HostAndPort& remoteHost, RemoteCommandResponse&& response) {
handleReplyCalled = true;
return Status::OK();
}));
RemoteCommandRequest request{testHost,
"blah",
BSON("foo"
<< "bar"),
nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(
rpc::Protocol::kOpQuery, [](RemoteCommandRequest request) -> RemoteCommandResponse {
RemoteCommandResponse response;
response.data =
BSON("minWireVersion" << mongo::WireSpec::instance().incoming.minWireVersion
<< "maxWireVersion"
<< mongo::WireSpec::instance().incoming.maxWireVersion
<< "TESTKEY"
<< "TESTVALUE");
return response;
});
// we should stop here.
auto& res = deferred.get();
ASSERT_EQ(validationFailedStatus, res.status);
ASSERT(res.elapsedMillis);
ASSERT(validateCalled);
ASSERT(hostCorrect);
ASSERT(isMasterReplyCorrect);
ASSERT(!makeRequestCalled);
ASSERT(!handleReplyCalled);
assertNumOps(0u, 0u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOConnectionHookTest, MakeRequestReturnsError) {
bool makeRequestCalled = false;
bool handleReplyCalled = false;
Status makeRequestError{ErrorCodes::DBPathInUse, "bloooh"};
start(makeTestHook(
[&](const HostAndPort& remoteHost, const RemoteCommandResponse& isMasterReply) -> Status {
return Status::OK();
},
[&](const HostAndPort& remoteHost) -> StatusWith<boost::optional<RemoteCommandRequest>> {
makeRequestCalled = true;
return makeRequestError;
},
[&](const HostAndPort& remoteHost, RemoteCommandResponse&& response) {
handleReplyCalled = true;
return Status::OK();
}));
RemoteCommandRequest request{testHost,
"blah",
BSON("foo"
<< "bar"),
nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
// We should stop here.
auto& res = deferred.get();
ASSERT_EQ(makeRequestError, res.status);
ASSERT(res.elapsedMillis);
ASSERT(makeRequestCalled);
ASSERT(!handleReplyCalled);
assertNumOps(0u, 0u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOConnectionHookTest, MakeRequestReturnsNone) {
bool makeRequestCalled = false;
bool handleReplyCalled = false;
start(makeTestHook(
[&](const HostAndPort& remoteHost, const RemoteCommandResponse& isMasterReply) -> Status {
return Status::OK();
},
[&](const HostAndPort& remoteHost) -> StatusWith<boost::optional<RemoteCommandRequest>> {
makeRequestCalled = true;
return {boost::none};
},
[&](const HostAndPort& remoteHost, RemoteCommandResponse&& response) {
handleReplyCalled = true;
return Status::OK();
}));
auto commandRequest = BSON("foo"
<< "bar");
auto commandReply = BSON("foo"
<< "boo"
<< "ok"
<< 1.0);
auto metadata = BSON("aaa"
<< "bbb");
RemoteCommandRequest request{testHost, "blah", commandRequest, nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
// Simulate user command.
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[&](RemoteCommandRequest request) -> RemoteCommandResponse {
ASSERT_BSONOBJ_EQ(commandRequest, request.cmdObj);
RemoteCommandResponse response;
response.data = commandReply;
response.metadata = metadata;
return response;
});
// We should get back the reply now.
auto& result = deferred.get();
ASSERT(result.isOK());
ASSERT_BSONOBJ_EQ(commandReply, result.data);
ASSERT(result.elapsedMillis);
ASSERT_BSONOBJ_EQ(metadata, result.metadata);
assertNumOps(0u, 0u, 0u, 1u);
}
TEST_F(NetworkInterfaceASIOConnectionHookTest, HandleReplyReturnsError) {
bool makeRequestCalled = false;
bool handleReplyCalled = false;
bool handleReplyArgumentCorrect = false;
BSONObj hookCommandRequest = BSON("1ddd"
<< "fff");
BSONObj hookRequestMetadata = BSON("wdwd" << 1212);
BSONObj hookCommandReply = BSON("blah"
<< "blah"
<< "ok"
<< 1.0);
BSONObj hookReplyMetadata = BSON("1111" << 2222);
Status handleReplyError{ErrorCodes::AuthSchemaIncompatible, "daowdjkpowkdjpow"};
start(makeTestHook(
[&](const HostAndPort& remoteHost, const RemoteCommandResponse& isMasterReply) -> Status {
return Status::OK();
},
[&](const HostAndPort& remoteHost) -> StatusWith<boost::optional<RemoteCommandRequest>> {
makeRequestCalled = true;
return {boost::make_optional<RemoteCommandRequest>(
{testHost, "foo", hookCommandRequest, hookRequestMetadata, nullptr})};
},
[&](const HostAndPort& remoteHost, RemoteCommandResponse&& response) {
handleReplyCalled = true;
handleReplyArgumentCorrect =
SimpleBSONObjComparator::kInstance.evaluate(response.data == hookCommandReply) &&
SimpleBSONObjComparator::kInstance.evaluate(response.metadata == hookReplyMetadata);
return handleReplyError;
}));
auto commandRequest = BSON("foo"
<< "bar");
RemoteCommandRequest request{testHost, "blah", commandRequest, nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
// Simulate hook reply
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[&](RemoteCommandRequest request) -> RemoteCommandResponse {
ASSERT_BSONOBJ_EQ(request.cmdObj, hookCommandRequest);
ASSERT_BSONOBJ_EQ(request.metadata, hookRequestMetadata);
RemoteCommandResponse response;
response.data = hookCommandReply;
response.metadata = hookReplyMetadata;
return response;
});
auto& result = deferred.get();
ASSERT_EQ(handleReplyError, result.status);
ASSERT(result.elapsedMillis);
ASSERT(makeRequestCalled);
ASSERT(handleReplyCalled);
ASSERT(handleReplyArgumentCorrect);
assertNumOps(0u, 0u, 1u, 0u);
}
TEST_F(NetworkInterfaceASIOTest, SetAlarm) {
// set a first alarm, to execute after "expiration"
Date_t expiration = net().now() + Milliseconds(100);
Deferred<Date_t> deferred;
ASSERT_OK(net().setAlarm(
expiration, [this, expiration, deferred]() mutable { deferred.emplace(net().now()); }));
// Get our timer factory
auto& factory = timerFactory();
// force the alarm to fire
factory.fastForward(Milliseconds(5000));
// assert that it executed after "expiration"
auto& result = deferred.get();
ASSERT(result >= expiration);
expiration = net().now() + Milliseconds(99999999);
Deferred<bool> deferred2;
ASSERT_OK(net().setAlarm(expiration, [this, deferred2]() mutable { deferred2.emplace(true); }));
net().shutdown();
ASSERT(!deferred2.hasCompleted());
}
TEST_F(NetworkInterfaceASIOTest, SetAlarmReturnsNotOKIfShutdownHasStarted) {
net().shutdown();
ASSERT_NOT_OK(net().setAlarm(net().now() + Milliseconds(100), [] {}));
}
TEST_F(NetworkInterfaceASIOTest, IsMasterRequestContainsOutgoingWireVersionInternalClientInfo) {
WireSpec::instance().isInternalClient = true;
RemoteCommandRequest request{testHost, "testDB", BSON("ping" << 1), BSONObj(), nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// Verify that the isMaster reply has the expected internalClient data.
stream->simulateServer(
rpc::Protocol::kOpQuery, [](RemoteCommandRequest request) -> RemoteCommandResponse {
auto internalClientElem = request.cmdObj["internalClient"];
ASSERT_EQ(internalClientElem.type(), BSONType::Object);
auto minWireVersionElem = internalClientElem.Obj()["minWireVersion"];
auto maxWireVersionElem = internalClientElem.Obj()["maxWireVersion"];
ASSERT_EQ(minWireVersionElem.type(), BSONType::NumberInt);
ASSERT_EQ(maxWireVersionElem.type(), BSONType::NumberInt);
ASSERT_EQ(minWireVersionElem.numberInt(), WireSpec::instance().outgoing.minWireVersion);
ASSERT_EQ(maxWireVersionElem.numberInt(), WireSpec::instance().outgoing.maxWireVersion);
return simulateIsMaster(request);
});
// Simulate ping reply.
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[&](RemoteCommandRequest request) -> RemoteCommandResponse {
RemoteCommandResponse response;
response.data = BSON("ok" << 1);
return response;
});
// Verify that the ping op is counted as a success.
auto& res = deferred.get();
ASSERT(res.elapsedMillis);
assertNumOps(0u, 0u, 0u, 1u);
}
TEST_F(NetworkInterfaceASIOTest, IsMasterRequestMissingInternalClientInfoWhenNotInternalClient) {
WireSpec::instance().isInternalClient = false;
RemoteCommandRequest request{testHost, "testDB", BSON("ping" << 1), BSONObj(), nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// Verify that the isMaster reply has the expected internalClient data.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
ASSERT_FALSE(request.cmdObj["internalClient"]);
return simulateIsMaster(request);
});
// Simulate ping reply.
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[&](RemoteCommandRequest request) -> RemoteCommandResponse {
RemoteCommandResponse response;
response.data = BSON("ok" << 1);
return response;
});
// Verify that the ping op is counted as a success.
auto& res = deferred.get();
ASSERT(res.elapsedMillis);
assertNumOps(0u, 0u, 0u, 1u);
}
class NetworkInterfaceASIOMetadataTest : public NetworkInterfaceASIOTest {
protected:
void setUp() override {}
void start(std::unique_ptr<rpc::EgressMetadataHook> metadataHook) {
auto factory = stdx::make_unique<AsyncMockStreamFactory>();
_streamFactory = factory.get();
NetworkInterfaceASIO::Options options{};
options.streamFactory = std::move(factory);
options.metadataHook = std::move(metadataHook);
options.timerFactory = stdx::make_unique<AsyncTimerFactoryMock>();
_net = stdx::make_unique<NetworkInterfaceASIO>(std::move(options));
_net->startup();
}
};
class TestMetadataHook : public rpc::EgressMetadataHook {
public:
TestMetadataHook(bool* wroteRequestMetadata, bool* gotReplyMetadata)
: _wroteRequestMetadata(wroteRequestMetadata), _gotReplyMetadata(gotReplyMetadata) {}
Status writeRequestMetadata(OperationContext* txn,
const HostAndPort& requestDestination,
BSONObjBuilder* metadataBob) override {
metadataBob->append("foo", "bar");
*_wroteRequestMetadata = true;
return Status::OK();
}
Status readReplyMetadata(const HostAndPort& replySource, const BSONObj& metadataObj) override {
*_gotReplyMetadata = (metadataObj["baz"].str() == "garply");
return Status::OK();
}
private:
bool* _wroteRequestMetadata;
bool* _gotReplyMetadata;
};
TEST_F(NetworkInterfaceASIOMetadataTest, Metadata) {
bool wroteRequestMetadata = false;
bool gotReplyMetadata = false;
auto hookList = stdx::make_unique<rpc::EgressMetadataHookList>();
hookList->addHook(
stdx::make_unique<TestMetadataHook>(&wroteRequestMetadata, &gotReplyMetadata));
start(std::move(hookList));
RemoteCommandRequest request{testHost, "blah", BSON("ping" << 1), nullptr};
auto deferred = startCommand(makeCallbackHandle(), request);
auto stream = streamFactory().blockUntilStreamExists(testHost);
ConnectEvent{stream}.skip();
// simulate isMaster reply.
stream->simulateServer(rpc::Protocol::kOpQuery,
[](RemoteCommandRequest request) -> RemoteCommandResponse {
return simulateIsMaster(request);
});
// Simulate hook reply
stream->simulateServer(rpc::Protocol::kOpCommandV1,
[&](RemoteCommandRequest request) -> RemoteCommandResponse {
ASSERT_EQ("bar", request.metadata["foo"].str());
RemoteCommandResponse response;
response.data = BSON("ok" << 1);
response.metadata = BSON("baz"
<< "garply");
return response;
});
auto& res = deferred.get();
ASSERT(res.elapsedMillis);
ASSERT(wroteRequestMetadata);
ASSERT(gotReplyMetadata);
assertNumOps(0u, 0u, 0u, 1u);
}
} // namespace
} // namespace executor
} // namespace mongo
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