139 lines
4.0 KiB
Objective-C
139 lines
4.0 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTPackagerConnection.h"
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#import <objc/runtime.h>
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#import <React/RCTAssert.h>
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#import <React/RCTBridge.h>
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#import <React/RCTConvert.h>
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#import <React/RCTDefines.h>
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#import <React/RCTLog.h>
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#import <React/RCTReconnectingWebSocket.h>
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#import <React/RCTSRWebSocket.h>
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#import <React/RCTUtils.h>
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#import <React/RCTWebSocketObserverProtocol.h>
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#import "RCTPackagerConnectionBridgeConfig.h"
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#import "RCTReloadPackagerMethod.h"
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#import "RCTSamplingProfilerPackagerMethod.h"
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#if RCT_DEV
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@interface RCTPackagerConnection () <RCTWebSocketProtocolDelegate>
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@end
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@implementation RCTPackagerConnection {
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NSURL *_packagerURL;
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RCTReconnectingWebSocket *_socket;
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NSMutableDictionary<NSString *, id<RCTPackagerClientMethod>> *_handlers;
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}
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+ (instancetype)connectionForBridge:(RCTBridge *)bridge
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{
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RCTPackagerConnectionBridgeConfig *config = [[RCTPackagerConnectionBridgeConfig alloc] initWithBridge:bridge];
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return [[[self class] alloc] initWithConfig:config];
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}
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- (instancetype)initWithConfig:(id<RCTPackagerConnectionConfig>)config
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{
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if (self = [super init]) {
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_packagerURL = [config packagerURL];
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_handlers = [[config defaultPackagerMethods] mutableCopy];
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[self connect];
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}
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return self;
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}
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- (void)connect
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{
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RCTAssertMainQueue();
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NSURL *url = _packagerURL;
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if (!url) {
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return;
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}
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// The jsPackagerClient is a static map that holds different packager clients per the packagerURL
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// In case many instances of DevMenu are created, the latest instance that use the same URL as
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// previous instances will override given packager client's method handlers
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static NSMutableDictionary<NSString *, RCTReconnectingWebSocket *> *socketConnections = nil;
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if (socketConnections == nil) {
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socketConnections = [NSMutableDictionary new];
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}
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NSString *key = [url absoluteString];
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RCTReconnectingWebSocket *webSocket = socketConnections[key];
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if (!webSocket) {
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webSocket = [[RCTReconnectingWebSocket alloc] initWithURL:url];
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[webSocket start];
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socketConnections[key] = webSocket;
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}
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webSocket.delegate = self;
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}
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- (void)addHandler:(id<RCTPackagerClientMethod>)handler forMethod:(NSString *)name
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{
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_handlers[name] = handler;
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}
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static BOOL isSupportedVersion(NSNumber *version)
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{
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NSArray<NSNumber *> *const kSupportedVersions = @[ @(RCT_PACKAGER_CLIENT_PROTOCOL_VERSION) ];
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return [kSupportedVersions containsObject:version];
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}
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#pragma mark - RCTWebSocketProtocolDelegate
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- (void)webSocket:(RCTSRWebSocket *)webSocket didReceiveMessage:(id)message
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{
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if (!_handlers) {
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return;
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}
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NSError *error = nil;
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NSDictionary<NSString *, id> *msg = RCTJSONParse(message, &error);
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if (error) {
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RCTLogError(@"%@ failed to parse message with error %@\n<message>\n%@\n</message>", [self class], error, msg);
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return;
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}
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if (!isSupportedVersion(msg[@"version"])) {
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RCTLogError(@"%@ received message with not supported version %@", [self class], msg[@"version"]);
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return;
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}
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id<RCTPackagerClientMethod> methodHandler = _handlers[msg[@"method"]];
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if (!methodHandler) {
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if (msg[@"id"]) {
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NSString *errorMsg = [NSString stringWithFormat:@"%@ no handler found for method %@", [self class], msg[@"method"]];
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RCTLogError(errorMsg, msg[@"method"]);
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[[[RCTPackagerClientResponder alloc] initWithId:msg[@"id"]
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socket:webSocket] respondWithError:errorMsg];
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}
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return; // If it was a broadcast then we ignore it gracefully
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}
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if (msg[@"id"]) {
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[methodHandler handleRequest:msg[@"params"]
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withResponder:[[RCTPackagerClientResponder alloc] initWithId:msg[@"id"]
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socket:webSocket]];
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} else {
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[methodHandler handleNotification:msg[@"params"]];
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}
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}
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@end
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#endif
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