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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 <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];

#if TARGET_OS_IPHONE
  // An alphanumeric string that uniquely identifies a device to the app's vendor. [Source: Apple docs]
  NSString *identifierForVendor = [[UIDevice currentDevice] identifierForVendor].UUIDString;
#else
  // macOS does not support UIDevice. Use an empty string, with the assumption
  // that we are only building to the current system.
  NSString *identifierForVendor = @"";
#endif

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 *escapedInspectorDeviceId = [getInspectorDeviceId()
      stringByAddingPercentEncodingWithAllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];

NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://%@/open-debugger?device=%@",
                                                               getServerHost(bundleURL),
                                                               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) {
    connection = [[RCTCxxInspectorPackagerConnection alloc] initWithURL:inspectorURL];

socketConnections[key] = connection;
    [connection connect];
  }

return connection;
}

@end

#endif

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Name	Size	Perms	Modified	Actions
RCTDevLoadingViewProtocol.h	540 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTDevLoadingViewSetEnabled.h	331 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTDevLoadingViewSetEnabled.m	514 B	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTInspectorDevServerHelper.h	655 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTInspectorDevServerHelper.mm	7.31 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTInspectorNetworkHelper.h	953 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTInspectorNetworkHelper.mm	4.15 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTInspectorUtils.h	773 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTInspectorUtils.mm	1.86 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTPackagerClient.h	1.05 KB	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTPackagerClient.m	1.51 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTPackagerConnection.h	2.69 KB	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTPackagerConnection.mm	11.39 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive
RCTPausedInDebuggerOverlayController.h	385 B	lrw-r--r--	2025-03-28 11:04:41	Edit Download recursive recursive
RCTPausedInDebuggerOverlayController.mm	4.88 KB	lrw-r--r--	2025-03-28 11:04:43	Edit Download recursive recursive