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RCTInspectorDevServerHelper.mm
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RCTInspectorDevServerHelper.mm
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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import <React/RCTInspectorDevServerHelper.h>
#if RCT_DEV || RCT_REMOTE_PROFILE
#import <React/RCTLog.h>
#import <UIKit/UIKit.h>
#import <React/RCTCxxInspectorPackagerConnection.h>
#import <React/RCTDefines.h>
#import <React/RCTInspectorPackagerConnection.h>
#import <CommonCrypto/CommonCrypto.h>
#import <jsinspector-modern/InspectorFlags.h>
static NSString *const kDebuggerMsgDisable = @"{ \"id\":1,\"method\":\"Debugger.disable\" }";
static NSString *getServerHost(NSURL *bundleURL)
{
NSNumber *port = @8081;
NSString *portStr = [[[NSProcessInfo processInfo] environment] objectForKey:@"RCT_METRO_PORT"];
if (portStr && [portStr length] > 0) {
port = [NSNumber numberWithInt:[portStr intValue]];
}
if ([bundleURL port]) {
port = [bundleURL port];
}
NSString *host = [bundleURL host];
if (!host) {
host = @"localhost";
}
// this is consistent with the Android implementation, where http:// is the
// hardcoded implicit scheme for the debug server. Note, packagerURL
// technically looks like it could handle schemes/protocols other than HTTP,
// so rather than force HTTP, leave it be for now, in case someone is relying
// on that ability when developing against iOS.
return [NSString stringWithFormat:@"%@:%@", host, port];
}
static NSString *getSHA256(NSString *string)
{
const char *str = string.UTF8String;
unsigned char result[CC_SHA256_DIGEST_LENGTH];
CC_SHA256(str, (CC_LONG)strlen(str), result);
return [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
result[0],
result[1],
result[2],
result[3],
result[4],
result[5],
result[6],
result[7],
result[8],
result[9],
result[10],
result[11],
result[12],
result[13],
result[14],
result[15],
result[16],
result[17],
result[18],
result[19]];
}
// Returns an opaque ID which is stable for the current combination of device and app, stable across installs,
// and unique across devices.
static NSString *getInspectorDeviceId()
{
// A bundle ID uniquely identifies a single app throughout the system. [Source: Apple docs]
NSString *bundleId = [[NSBundle mainBundle] bundleIdentifier];
// An alphanumeric string that uniquely identifies a device to the app's vendor. [Source: Apple docs]
NSString *identifierForVendor = [[UIDevice currentDevice] identifierForVendor].UUIDString;
auto &inspectorFlags = facebook::react::jsinspector_modern::InspectorFlags::getInstance();
NSString *rawDeviceId = [NSString stringWithFormat:@"apple-%@-%@-%s",
identifierForVendor,
bundleId,
inspectorFlags.getFuseboxEnabled() ? "fusebox" : "legacy"];
return getSHA256(rawDeviceId);
}
static NSURL *getInspectorDeviceUrl(NSURL *bundleURL)
{
NSString *escapedDeviceName = [[[UIDevice currentDevice] name]
stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
NSString *escapedAppName = [[[NSBundle mainBundle] bundleIdentifier]
stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
NSString *escapedInspectorDeviceId = [getInspectorDeviceId()
stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
return [NSURL URLWithString:[NSString stringWithFormat:@"http://%@/inspector/device?name=%@&app=%@&device=%@",
getServerHost(bundleURL),
escapedDeviceName,
escapedAppName,
escapedInspectorDeviceId]];
}
@implementation RCTInspectorDevServerHelper
RCT_NOT_IMPLEMENTED(-(instancetype)init)
static NSMutableDictionary<NSString *, id<RCTInspectorPackagerConnectionProtocol>> *socketConnections = nil;
static void sendEventToAllConnections(NSString *event)
{
for (NSString *socketId in socketConnections) {
[socketConnections[socketId] sendEventToAllConnections:event];
}
}
+ (BOOL)isPackagerDisconnected
{
for (NSString *socketId in socketConnections) {
if ([socketConnections[socketId] isConnected]) {
return false;
}
}
return true;
}
+ (void)openDebugger:(NSURL *)bundleURL withErrorMessage:(NSString *)errorMessage
{
NSString *appId = [[[NSBundle mainBundle] bundleIdentifier]
stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
NSString *escapedInspectorDeviceId = [getInspectorDeviceId()
stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://%@/open-debugger?appId=%@&device=%@",
getServerHost(bundleURL),
appId,
escapedInspectorDeviceId]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
[[[NSURLSession sharedSession]
dataTaskWithRequest:request
completionHandler:^(
__unused NSData *_Nullable data, __unused NSURLResponse *_Nullable response, NSError *_Nullable error) {
if (error != nullptr) {
RCTLogWarn(@"%@", errorMessage);
}
}] resume];
}
+ (void)disableDebugger
{
auto &inspectorFlags = facebook::react::jsinspector_modern::InspectorFlags::getInstance();
if (!inspectorFlags.getFuseboxEnabled()) {
sendEventToAllConnections(kDebuggerMsgDisable);
}
}
+ (id<RCTInspectorPackagerConnectionProtocol>)connectWithBundleURL:(NSURL *)bundleURL
{
NSURL *inspectorURL = getInspectorDeviceUrl(bundleURL);
// Note, using a static dictionary isn't really the greatest design, but
// the packager connection does the same thing, so it's at least consistent.
// This is a static map that holds different inspector clients per the inspectorURL
if (socketConnections == nil) {
socketConnections = [NSMutableDictionary new];
}
NSString *key = [inspectorURL absoluteString];
id<RCTInspectorPackagerConnectionProtocol> connection = socketConnections[key];
if (!connection || !connection.isConnected) {
if (facebook::react::jsinspector_modern::InspectorFlags::getInstance().getFuseboxEnabled()) {
connection = [[RCTCxxInspectorPackagerConnection alloc] initWithURL:inspectorURL];
} else {
connection = [[RCTInspectorPackagerConnection alloc] initWithURL:inspectorURL];
}
socketConnections[key] = connection;
[connection connect];
}
return connection;
}
@end
#endif