forked from rabbitmq/rabbitmq-objc-client
/
RMQConnection.m
776 lines (702 loc) · 36.9 KB
/
RMQConnection.m
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// This source code is dual-licensed under the Mozilla Public License ("MPL"),
// version 1.1 and the Apache License ("ASL"), version 2.0.
//
// The ASL v2.0:
//
// ---------------------------------------------------------------------------
// Copyright 2017-2022 VMware, Inc. or its affiliates.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ---------------------------------------------------------------------------
//
// The MPL v2.0:
//
// ---------------------------------------------------------------------------
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2007-2022 VMware, Inc. or its affiliates. All rights reserved.
//
// Alternatively, the contents of this file may be used under the terms
// of the Apache Standard license (the "ASL License"), in which case the
// provisions of the ASL License are applicable instead of those
// above. If you wish to allow use of your version of this file only
// under the terms of the ASL License and not to allow others to use
// your version of this file under the MPL, indicate your decision by
// deleting the provisions above and replace them with the notice and
// other provisions required by the ASL License. If you do not delete
// the provisions above, a recipient may use your version of this file
// under either the MPL or the ASL License.
// ---------------------------------------------------------------------------
#import "RMQConnectionDefaults.h"
#import "RMQConnection.h"
#import "RMQConnectionRecover.h"
#import "RMQGCDHeartbeatSender.h"
#import "RMQGCDSerialQueue.h"
#import "RMQHandshaker.h"
#import "RMQMethods.h"
#import "RMQMultipleChannelAllocator.h"
#import "RMQProtocolHeader.h"
#import "RMQQueuingConnectionDelegateProxy.h"
#import "RMQReader.h"
#import "RMQSemaphoreWaiterFactory.h"
#import "RMQTCPSocketTransport.h"
#import "RMQURI.h"
#import "RMQTickingClock.h"
#import "RMQTLSOptions.h"
#import "RMQErrors.h"
#import "RMQFrame.h"
#import "RMQProcessInfoNameGenerator.h"
@interface RMQConnection ()
@property (strong, nonatomic, readwrite) id <RMQTransport> transport;
@property (nonatomic, readwrite) RMQReader *reader;
@property (nonatomic, readwrite) id <RMQChannelAllocator> channelAllocator;
@property (nonatomic, readwrite) id <RMQFrameHandler> frameHandler;
@property (nonatomic, readwrite) id<RMQLocalSerialQueue> commandQueue;
@property (nonatomic, readwrite) id<RMQWaiterFactory> waiterFactory;
@property (nonatomic, weak, readwrite) id<RMQHeartbeatSender> heartbeatSender;
@property (nonatomic, weak, readwrite) id<RMQConnectionDelegate> delegate;
@property (nonatomic, weak, readwrite) id <RMQChannel> channelZero;
@property (nonatomic, readwrite) RMQConnectionConfig *config;
@property (nonatomic, readwrite) NSMutableDictionary *userChannels;
@property (nonatomic, readwrite) NSNumber *frameMax;
@property (nonatomic, readwrite) BOOL handshakeComplete;
@property (nonatomic, readwrite) NSNumber *handshakeTimeout;
@end
__attribute__((constructor))
static void RMQInitConnectionConfigDefaults() {
RMQDefaultHeartbeatTimeout = [NSNumber numberWithInteger:60];
RMQDefaultConnectTimeout = [NSNumber numberWithInteger:30];
RMQDefaultReadTimeout = [NSNumber numberWithInteger:55];
RMQDefaultWriteTimeout = [NSNumber numberWithInteger:55];
RMQDefaultSyncTimeout = [NSNumber numberWithInteger:15];
RMQDefaultRecoveryInterval = [NSNumber numberWithInteger:4];
}
@implementation RMQConnection
+ (dispatch_queue_t)defaultDispatchQueue {
// TODO: consider a library-specific GCD queue, e.g.
// return dispatch_queue_create("com.rabbitmq.client.connections", DISPATCH_QUEUE_SERIAL);
return dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
}
- (instancetype)initWithTransport:(id<RMQTransport>)transport
config:(RMQConnectionConfig *)config
handshakeTimeout:(NSNumber *)handshakeTimeout
channelAllocator:(nonnull id<RMQChannelAllocator>)channelAllocator
frameHandler:(nonnull id<RMQFrameHandler>)frameHandler
delegate:(id<RMQConnectionDelegate>)delegate
commandQueue:(nonnull id<RMQLocalSerialQueue>)commandQueue
waiterFactory:(nonnull id<RMQWaiterFactory>)waiterFactory
heartbeatSender:(nonnull id<RMQHeartbeatSender>)heartbeatSender {
self = [super init];
if (self) {
self.config = config;
self.handshakeComplete = NO;
self.handshakeTimeout = handshakeTimeout;
self.frameMax = config.frameMax;
self.transport = transport;
self.transport.delegate = self;
self.channelAllocator = channelAllocator;
self.channelAllocator.sender = self;
self.frameHandler = frameHandler;
self.reader = [[RMQReader alloc] initWithTransport:self.transport frameHandler:self];
self.userChannels = [NSMutableDictionary new];
self.delegate = delegate;
self.commandQueue = commandQueue;
self.waiterFactory = waiterFactory;
self.heartbeatSender = heartbeatSender;
self.channelZero = [self.channelAllocator allocate];
[self.channelZero activateWithDelegate:self.delegate];
}
return self;
}
- (nonnull instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
userProvidedConnectionName:(NSString *)connectionName
channelMax:(nonnull NSNumber *)channelMax
frameMax:(nonnull NSNumber *)frameMax
heartbeat:(nonnull NSNumber *)heartbeat
connectTimeout:(nonnull NSNumber*)connectTimeout
readTimeout:(nonnull NSNumber*)readTimeout
writeTimeout:(nonnull NSNumber*)writeTimeout
syncTimeout:(nonnull NSNumber *)syncTimeout
delegate:(id<RMQConnectionDelegate>)delegate
delegateQueue:(dispatch_queue_t)delegateQueue
recoverAfter:(nonnull NSNumber *)recoveryInterval
recoveryAttempts:(nonnull NSNumber *)recoveryAttempts
recoverFromConnectionClose:(BOOL)shouldRecoverFromConnectionClose {
NSError *error = NULL;
RMQURI *rmqURI = [RMQURI parse:uri error:&error];
RMQTCPSocketTransport *transport = [[RMQTCPSocketTransport alloc] initWithHost:rmqURI.host
port:rmqURI.portNumber
tlsOptions:tlsOptions
connectTimeout:connectTimeout
readTimeout:readTimeout
writeTimeout:writeTimeout];
RMQMultipleChannelAllocator *allocator = [[RMQMultipleChannelAllocator alloc]
initWithMaxCapacity:[channelMax unsignedIntegerValue]
channelSyncTimeout:syncTimeout];
RMQQueuingConnectionDelegateProxy *delegateProxy = [[RMQQueuingConnectionDelegateProxy alloc]
initWithDelegate:delegate
queue:delegateQueue];
RMQSemaphoreWaiterFactory *waiterFactory = [RMQSemaphoreWaiterFactory new];
RMQGCDHeartbeatSender *heartbeatSender = [[RMQGCDHeartbeatSender alloc] initWithTransport:transport
clock:[RMQTickingClock new]];
RMQProcessInfoNameGenerator *nameGenerator = [RMQProcessInfoNameGenerator new];
RMQGCDSerialQueue *commandQueue = [[RMQGCDSerialQueue alloc]
initWithName:[nameGenerator generateWithPrefix:@"connection-commands"]];
RMQConnectionRecover *recovery = [[RMQConnectionRecover alloc] initWithInterval:recoveryInterval
attemptLimit:recoveryAttempts
onlyErrors:!shouldRecoverFromConnectionClose
heartbeatSender:heartbeatSender
commandQueue:commandQueue
delegate:delegateProxy];
RMQCredentials *credentials = [[RMQCredentials alloc] initWithUsername:rmqURI.username
password:rmqURI.password];
RMQConnectionConfig *config = [[RMQConnectionConfig alloc] initWithCredentials:credentials
channelMax:channelMax
frameMax:frameMax
heartbeat:heartbeat
vhost:rmqURI.vhost
authMechanism:tlsOptions.authMechanism
userProvidedConnectionName:connectionName
recovery:recovery];
return [self initWithTransport:transport
config:config
handshakeTimeout:syncTimeout
channelAllocator:allocator
frameHandler:allocator
delegate:delegateProxy
commandQueue:commandQueue
waiterFactory:waiterFactory
heartbeatSender:heartbeatSender];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
userProvidedConnectionName:(nonnull NSString *)connectionName
channelMax:(nonnull NSNumber *)channelMax
frameMax:(nonnull NSNumber *)frameMax
heartbeat:(nonnull NSNumber *)heartbeat
connectTimeout:(nonnull NSNumber*)connectTimeout
readTimeout:(nonnull NSNumber*)readTimeout
writeTimeout:(nonnull NSNumber*)writeTimeout
syncTimeout:(nonnull NSNumber *)syncTimeout
delegate:(id<RMQConnectionDelegate>)delegate
delegateQueue:(dispatch_queue_t)delegateQueue
recoverAfter:(nonnull NSNumber *)recoveryInterval
recoveryAttempts:(nonnull NSNumber *)recoveryAttempts
recoverFromConnectionClose:(BOOL)shouldRecoverFromConnectionClose {
NSError *error = NULL;
RMQURI *rmqURI = [RMQURI parse:uri error:&error];
RMQTCPSocketTransport *transport = [[RMQTCPSocketTransport alloc] initWithHost:rmqURI.host
port:rmqURI.portNumber
tlsOptions:[RMQTLSOptions fromURI:uri]
connectTimeout:connectTimeout
readTimeout:readTimeout
writeTimeout:writeTimeout];
RMQMultipleChannelAllocator *allocator = [[RMQMultipleChannelAllocator alloc]
initWithMaxCapacity:[channelMax unsignedIntegerValue]
channelSyncTimeout:syncTimeout];
RMQQueuingConnectionDelegateProxy *delegateProxy = [[RMQQueuingConnectionDelegateProxy alloc]
initWithDelegate:delegate
queue:delegateQueue];
RMQSemaphoreWaiterFactory *waiterFactory = [RMQSemaphoreWaiterFactory new];
RMQGCDHeartbeatSender *heartbeatSender = [[RMQGCDHeartbeatSender alloc] initWithTransport:transport
clock:[RMQTickingClock new]];
RMQProcessInfoNameGenerator *nameGenerator = [RMQProcessInfoNameGenerator new];
RMQGCDSerialQueue *commandQueue = [[RMQGCDSerialQueue alloc]
initWithName:[nameGenerator generateWithPrefix:@"connection-commands"]];
RMQConnectionRecover *recovery = [[RMQConnectionRecover alloc] initWithInterval:recoveryInterval
attemptLimit:recoveryAttempts
onlyErrors:!shouldRecoverFromConnectionClose
heartbeatSender:heartbeatSender
commandQueue:commandQueue
delegate:delegateProxy];
RMQCredentials *credentials = [[RMQCredentials alloc] initWithUsername:rmqURI.username
password:rmqURI.password];
RMQConnectionConfig *config = [[RMQConnectionConfig alloc] initWithCredentials:credentials
channelMax:channelMax
frameMax:frameMax
heartbeat:heartbeat
vhost:rmqURI.vhost
authMechanism:@"PLAIN"
userProvidedConnectionName:connectionName
recovery:recovery];
return [self initWithTransport:transport
config:config
handshakeTimeout:syncTimeout
channelAllocator:allocator
frameHandler:allocator
delegate:delegateProxy
commandQueue:commandQueue
waiterFactory:waiterFactory
heartbeatSender:heartbeatSender];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
userProvidedConnectionName:(NSString *)connectionName
delegate:(id<RMQConnectionDelegate>)delegate
delegateQueue:delegateQueue {
RMQQueuingConnectionDelegateProxy *delegateProxy = [[RMQQueuingConnectionDelegateProxy alloc]
initWithDelegate:delegate
queue:delegateQueue];
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:connectionName
delegate:delegateProxy
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
userProvidedConnectionName:(NSString *)connectionName
delegate:(id<RMQConnectionDelegate>)delegate
recoverAfter:(nonnull NSNumber *)recoveryInterval
recoveryAttempts:(nonnull NSNumber *)recoveryAttempts
recoverFromConnectionClose:(BOOL)shouldRecoverFromConnectionClose {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:connectionName
delegate:delegate
recoverAfter:recoveryInterval
recoveryAttempts:recoveryAttempts
recoverFromConnectionClose:shouldRecoverFromConnectionClose];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
userProvidedConnectionName:(NSString *)connectionName
delegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:connectionName
delegate:delegate
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
delegate:(id<RMQConnectionDelegate>)delegate
recoverAfter:(nonnull NSNumber *)recoveryInterval
recoveryAttempts:(nonnull NSNumber *)recoveryAttempts
recoverFromConnectionClose:(BOOL)shouldRecoverFromConnectionClose {
return [self initWithUri:uri
tlsOptions:tlsOptions
userProvidedConnectionName:NULL
delegate:delegate
recoverAfter:recoveryInterval
recoveryAttempts:recoveryAttempts
recoverFromConnectionClose:shouldRecoverFromConnectionClose];
}
- (nonnull instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
userProvidedConnectionName:(NSString *)connectionName
delegate:(id<RMQConnectionDelegate>)delegate
recoverAfter:(nonnull NSNumber *)recoveryInterval
recoveryAttempts:(nonnull NSNumber *)recoveryAttempts
recoverFromConnectionClose:(BOOL)shouldRecoverFromConnectionClose {
NSError *error = NULL;
RMQURI *rmqURI = [RMQURI parse:uri error:&error];
RMQTCPSocketTransport *transport = [[RMQTCPSocketTransport alloc] initWithHost:rmqURI.host
port:rmqURI.portNumber
tlsOptions:[RMQTLSOptions fromURI:uri]
connectTimeout:RMQDefaultConnectTimeout
readTimeout:RMQDefaultReadTimeout
writeTimeout:RMQDefaultWriteTimeout];
RMQMultipleChannelAllocator *allocator = [[RMQMultipleChannelAllocator alloc]
initWithMaxCapacity:[@(RMQChannelMaxDefault) unsignedIntegerValue]
channelSyncTimeout:RMQDefaultSyncTimeout];
RMQQueuingConnectionDelegateProxy *delegateProxy =
[[RMQQueuingConnectionDelegateProxy alloc]
initWithDelegate:delegate
queue:[RMQConnection defaultDispatchQueue]];
RMQSemaphoreWaiterFactory *waiterFactory = [RMQSemaphoreWaiterFactory new];
RMQGCDHeartbeatSender *heartbeatSender = [[RMQGCDHeartbeatSender alloc] initWithTransport:transport
clock:[RMQTickingClock new]];
RMQProcessInfoNameGenerator *nameGenerator = [RMQProcessInfoNameGenerator new];
RMQGCDSerialQueue *commandQueue = [[RMQGCDSerialQueue alloc]
initWithName:[nameGenerator generateWithPrefix:@"connection-commands"]];
RMQConnectionRecover *recovery = [[RMQConnectionRecover alloc] initWithInterval:recoveryInterval
attemptLimit:recoveryAttempts
onlyErrors:!shouldRecoverFromConnectionClose
heartbeatSender:heartbeatSender
commandQueue:commandQueue
delegate:delegateProxy];
RMQCredentials *credentials = [[RMQCredentials alloc] initWithUsername:rmqURI.username
password:rmqURI.password];
RMQConnectionConfig *config = [[RMQConnectionConfig alloc] initWithCredentials:credentials
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
vhost:rmqURI.vhost
authMechanism:tlsOptions.authMechanism
userProvidedConnectionName:connectionName
recovery:recovery];
return [self initWithTransport:transport
config:config
handshakeTimeout:RMQDefaultHeartbeatTimeout
channelAllocator:allocator
frameHandler:allocator
delegate:delegateProxy
commandQueue:commandQueue
waiterFactory:waiterFactory
heartbeatSender:heartbeatSender];
}
- (instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
userProvidedConnectionName:(nonnull NSString *)connectionName
delegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:uri
tlsOptions:tlsOptions
userProvidedConnectionName:connectionName
delegate:delegate
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (instancetype)initWithUri:(NSString *)uri
delegate:(id<RMQConnectionDelegate>)delegate
recoverAfter:(NSNumber *)recoveryInterval {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:NULL
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
connectTimeout:RMQDefaultConnectTimeout
readTimeout:RMQDefaultReadTimeout
writeTimeout:RMQDefaultWriteTimeout
syncTimeout:RMQDefaultSyncTimeout
delegate:delegate
delegateQueue:[RMQConnection defaultDispatchQueue]
recoverAfter:recoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (instancetype)initWithUri:(NSString *)uri
delegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:NULL
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
connectTimeout:RMQDefaultConnectTimeout
readTimeout:RMQDefaultReadTimeout
writeTimeout:RMQDefaultWriteTimeout
syncTimeout:RMQDefaultSyncTimeout
delegate:delegate
delegateQueue:[RMQConnection defaultDispatchQueue]
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (instancetype)initWithUri:(NSString *)uri
connectTimeout:(nonnull NSNumber*)connectTimeout
readTimeout:(nonnull NSNumber*)readTimeout
writeTimeout:(nonnull NSNumber*)writeTimeout
delegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
userProvidedConnectionName:NULL
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
connectTimeout:connectTimeout
readTimeout:readTimeout
writeTimeout:writeTimeout
syncTimeout:RMQDefaultSyncTimeout
delegate:delegate
delegateQueue:[RMQConnection defaultDispatchQueue]
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
channelMax:(NSNumber *)channelMax
frameMax:(NSNumber *)frameMax
heartbeat:(NSNumber *)heartbeat
connectTimeout:(nonnull NSNumber*)connectTimeout
readTimeout:(nonnull NSNumber*)readTimeout
writeTimeout:(nonnull NSNumber*)writeTimeout
syncTimeout:(NSNumber *)syncTimeout
delegate:(id<RMQConnectionDelegate>)delegate
delegateQueue:(dispatch_queue_t)delegateQueue {
return [self initWithUri:uri
tlsOptions:tlsOptions
userProvidedConnectionName:NULL
channelMax:channelMax
frameMax:frameMax
heartbeat:heartbeat
connectTimeout:connectTimeout
readTimeout:readTimeout
writeTimeout:writeTimeout
syncTimeout:syncTimeout
delegate:delegate
delegateQueue:delegateQueue
recoverAfter:RMQDefaultRecoveryInterval
recoveryAttempts:@(NSUIntegerMax)
recoverFromConnectionClose:YES];
}
- (instancetype)initWithUri:(NSString *)uri
channelMax:(NSNumber *)channelMax
frameMax:(NSNumber *)frameMax
heartbeat:(NSNumber *)heartbeat
connectTimeout:(nonnull NSNumber*)connectTimeout
readTimeout:(nonnull NSNumber*)readTimeout
writeTimeout:(nonnull NSNumber*)writeTimeout
syncTimeout:(NSNumber *)syncTimeout
delegate:(id<RMQConnectionDelegate>)delegate
delegateQueue:(dispatch_queue_t)delegateQueue {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
channelMax:channelMax
frameMax:frameMax
heartbeat:heartbeat
connectTimeout:connectTimeout
readTimeout:readTimeout
writeTimeout:writeTimeout
syncTimeout:syncTimeout
delegate:delegate
delegateQueue:delegateQueue];
}
- (instancetype)initWithUri:(NSString *)uri
tlsOptions:(RMQTLSOptions *)tlsOptions
delegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:uri
tlsOptions:tlsOptions
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
connectTimeout:RMQDefaultConnectTimeout
readTimeout:RMQDefaultReadTimeout
writeTimeout:RMQDefaultWriteTimeout
syncTimeout:RMQDefaultSyncTimeout
delegate:delegate
delegateQueue:[RMQConnection defaultDispatchQueue]];
}
- (nonnull instancetype)initWithUri:(nonnull NSString *)uri
delegate:(nullable id<RMQConnectionDelegate>)delegate
delegateQueue:(nonnull dispatch_queue_t)delegateQueue {
return [self initWithUri:uri
tlsOptions:[RMQTLSOptions fromURI:uri]
channelMax:@(RMQChannelMaxDefault)
frameMax:@(RMQFrameMax)
heartbeat:RMQDefaultHeartbeatTimeout
connectTimeout:RMQDefaultConnectTimeout
readTimeout:RMQDefaultReadTimeout
writeTimeout:RMQDefaultWriteTimeout
syncTimeout:RMQDefaultSyncTimeout
delegate:delegate
delegateQueue:delegateQueue];
}
- (instancetype)initWithUri:(NSString *)uri
verifyPeer:(BOOL)verifyPeer
delegate:(id<RMQConnectionDelegate>)delegate {
RMQTLSOptions *tlsOptions = [RMQTLSOptions fromURI:uri verifyPeer:verifyPeer];
return [self initWithUri:uri tlsOptions:tlsOptions delegate:delegate];
}
- (instancetype)initWithDelegate:(id<RMQConnectionDelegate>)delegate {
return [self initWithUri:@"amqp://guest:guest@localhost" delegate:delegate];
}
- (instancetype)init
{
return [self initWithDelegate:nil];
}
- (void)start:(void (^)(void))completionHandler {
NSError *connectError = NULL;
[self.transport connectAndReturnError:&connectError];
if (connectError) {
[self.delegate connection:self failedToConnectWithError:connectError];
} else {
[self.transport write:[RMQProtocolHeader new].amqEncoded];
__weak id this = self;
[self.commandQueue enqueue:^{
__strong typeof(self) strongThis = this;
id<RMQWaiter> handshakeCompletion = [strongThis.waiterFactory makeWithTimeout:strongThis.handshakeTimeout];
RMQHandshaker *handshaker = [[RMQHandshaker alloc] initWithSender:strongThis
config:strongThis.config
completionHandler:^(NSNumber *heartbeatTimeout,
RMQTable *serverProperties) {
[strongThis.heartbeatSender startWithInterval:@(heartbeatTimeout.integerValue / 2)];
strongThis.handshakeComplete = YES;
[handshakeCompletion done];
[strongThis.reader run];
strongThis.serverProperties = serverProperties;
completionHandler();
}];
RMQReader *handshakeReader = [[RMQReader alloc] initWithTransport:strongThis.transport
frameHandler:handshaker];
handshaker.reader = handshakeReader;
[handshakeReader run];
if (handshakeCompletion.timesOut) {
NSError *error = [NSError errorWithDomain:RMQErrorDomain
code:RMQErrorConnectionHandshakeTimedOut
userInfo:@{NSLocalizedDescriptionKey: @"Handshake timed out."}];
[strongThis.delegate connection:strongThis failedToConnectWithError:error];
}
}];
}
}
- (void)start {
[self start:^{}];
}
- (id<RMQChannel>)createChannel {
id<RMQChannel> ch = self.channelAllocator.allocate;
self.userChannels[ch.channelNumber] = ch;
[self.commandQueue enqueue:^{
[ch activateWithDelegate:self.delegate];
}];
[ch open];
return ch;
}
- (void)updateSecret:(NSString *)secret
reason:(NSString *)reason
{
[self.commandQueue enqueue:^{
[self sendFrameset:[[RMQFrameset alloc] initWithChannelNumber:@0 method:[self methodForUpdateSecret:secret reason:reason]]];
}];
}
- (BOOL)hasCompletedHandshake {
return self.handshakeComplete;
}
- (BOOL)isOpen {
return self.transport.isConnected;
}
- (BOOL)isClosed {
return !self.isOpen;
}
- (void)close {
[self reportErrorIfAlreadyClosed];
for (RMQOperation operation in self.safeCloseOperations) {
[self.commandQueue enqueue:operation];
}
}
- (void)blockingClose {
[self reportErrorIfAlreadyClosed];
// this enqueues a blocking command,
// so be idempotent
if(self.isOpen) {
for (RMQOperation operation in self.safeCloseOperations) {
[self.commandQueue blockingEnqueue:operation];
}
}
}
/**
If called when connection is closed (or never was successfully completed),
will report an error to the delegate.
*/
- (void)reportErrorIfAlreadyClosed {
if (!self.handshakeComplete) {
NSError *error = [NSError errorWithDomain:RMQErrorDomain
code:RMQErrorConnectionHandshakeTimedOut
userInfo:@{NSLocalizedDescriptionKey: @"attempt to close an already closed (or never successfully established) connection"}];
[self.delegate connection:self failedToConnectWithError:error];
}
}
# pragma mark - RMQSender
- (void)sendFrameset:(RMQFrameset *)frameset
force:(BOOL)isForced {
if (self.handshakeComplete || isForced) {
[self.transport write:frameset.amqEncoded];
[self.heartbeatSender signalActivity];
}
}
- (void)sendFrameset:(RMQFrameset *)frameset {
[self sendFrameset:frameset force:NO];
}
# pragma mark - RMQFrameHandler
- (void)handleFrameset:(RMQFrameset *)frameset {
id method = frameset.method;
if ([method isKindOfClass:[RMQConnectionClose class]]) {
[self sendFrameset:[[RMQFrameset alloc] initWithChannelNumber:@0 method:[RMQConnectionCloseOk new]]];
self.handshakeComplete = NO;
[self.transport close];
self.transport.delegate = self;
} else {
[self.frameHandler handleFrameset:frameset];
[self.reader run];
}
}
# pragma mark - RMQTransportDelegate
- (void)transport:(id<RMQTransport>)transport disconnectedWithError:(NSError *)error {
self.handshakeComplete = NO;
if (error) [self.delegate connection:self disconnectedWithError:error];
[self.recovery recover:self
channelAllocator:self.channelAllocator
error:error];
}
# pragma mark - Private
- (NSArray *)safeCloseOperations {
return self.handshakeComplete ? [self closeOperations] : [self closeOperationsWithoutBlock];
}
/**
Used to safely close a connection (including connections that were never successfully opened)
*/
- (NSArray *)closeOperationsWithoutBlock {
return @[^{[self closeAllUserChannels];},
^{[self sendFrameset:[[RMQFrameset alloc] initWithChannelNumber:@0 method:self.amqClose]];},
^{[self.heartbeatSender stop];},
^{
self.transport.delegate = nil;
[self.transport cleanup];
[self.transport close];
},
^{
[self.channelAllocator cleanupOnClose];
self.channelAllocator = nil;
},
^{
self.reader = nil;
self.frameHandler = nil;
}];
}
- (NSArray *)closeOperations {
return @[^{[self closeAllUserChannels];},
^{[self sendFrameset:[[RMQFrameset alloc] initWithChannelNumber:@0 method:self.amqClose]];},
^{[self.channelZero blockingWaitOn:[RMQConnectionCloseOk class]];},
^{[self.heartbeatSender stop];},
^{
self.transport.delegate = nil;
[self.transport cleanup];
[self.transport close];
},
^{
[self.channelAllocator cleanupOnClose];
self.channelAllocator = nil;
},
^{
self.reader = nil;
self.frameHandler = nil;
}];
}
- (void)closeAllUserChannels {
for (id<RMQChannel> ch in self.userChannels.allValues) {
[ch blockingClose];
}
}
- (RMQConnectionUpdateSecret *)methodForUpdateSecret:(NSString *)secret
reason:(NSString *)reason {
RMQLongstr *secretLongstr = [[RMQLongstr alloc] init:secret];
RMQShortstr *reasonShortstr = [[RMQShortstr alloc] init:reason];
return [[RMQConnectionUpdateSecret alloc] initWithSecret:secretLongstr
reason:reasonShortstr];
}
- (RMQConnectionClose *)amqClose {
return [[RMQConnectionClose alloc] initWithReplyCode:[[RMQShort alloc] init:200]
replyText:[[RMQShortstr alloc] init:@"Goodbye"]
classId:[[RMQShort alloc] init:0]
methodId:[[RMQShort alloc] init:0]];
}
- (id<RMQConnectionRecovery>)recovery {
return self.config.recovery;
}
@end