react-native/React/DevSupport/RCTInspectorDevServerHelper.mm

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#import "RCTInspectorDevServerHelper.h"
#if RCT_DEV
#import <jschelpers/JSCWrapper.h>
#import <UIKit/UIKit.h>
#import <React/RCTLog.h>
#import "RCTDefines.h"
#import "RCTInspectorPackagerConnection.h"
using namespace facebook::react;
static NSString *const kDebuggerMsgDisable = @"{ \"id\":1,\"method\":\"Debugger.disable\" }";
static NSString *getServerHost(NSURL *bundleURL, NSNumber *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 NSURL *getInspectorDeviceUrl(NSURL *bundleURL)
{
NSNumber *inspectorProxyPort = @8082;
NSString *escapedDeviceName = [[[UIDevice currentDevice] name] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *escapedAppName = [[[NSBundle mainBundle] bundleIdentifier] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
return [NSURL URLWithString:[NSString stringWithFormat:@"http://%@/inspector/device?name=%@&app=%@",
getServerHost(bundleURL, inspectorProxyPort),
escapedDeviceName,
escapedAppName]];
}
static NSURL *getAttachDeviceUrl(NSURL *bundleURL, NSString *title)
{
NSNumber *metroBundlerPort = @8081;
NSString *escapedDeviceName = [[[UIDevice currentDevice] name] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *escapedAppName = [[[NSBundle mainBundle] bundleIdentifier] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
return [NSURL URLWithString:[NSString stringWithFormat:@"http://%@/attach-debugger-nuclide?title=%@&device=%@&app=%@",
getServerHost(bundleURL, metroBundlerPort),
title,
escapedDeviceName,
escapedAppName]];
}
@implementation RCTInspectorDevServerHelper
RCT_NOT_IMPLEMENTED(- (instancetype)init)
static NSMutableDictionary<NSString *, RCTInspectorPackagerConnection *> *socketConnections = nil;
static void sendEventToAllConnections(NSString *event)
{
for (NSString *socketId in socketConnections) {
[socketConnections[socketId] sendEventToAllConnections:event];
}
}
static void displayErrorAlert(UIViewController *view, NSString *message) {
UIAlertController *alert =
[UIAlertController alertControllerWithTitle:nil
message:message
preferredStyle:UIAlertControllerStyleAlert];
[view presentViewController:alert animated:YES completion:nil];
dispatch_after(
dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * 2.5),
dispatch_get_main_queue(),
^{
[alert dismissViewControllerAnimated:YES completion:nil];
});
}
+ (void)attachDebugger:(NSString *)owner
withBundleURL:(NSURL *)bundleURL
withView:(UIViewController *)view
{
NSURL *url = getAttachDeviceUrl(bundleURL, owner);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"GET"];
__weak UIViewController *viewCapture = view;
[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:
^(NSData *_Nullable data,
NSURLResponse *_Nullable response,
NSError *_Nullable error) {
UIViewController *viewCaptureStrong = viewCapture;
if (error != nullptr && viewCaptureStrong != nullptr) {
displayErrorAlert(viewCaptureStrong, @"The request to attach Nuclide couldn't reach Metro Bundler!");
}
}] resume];
}
+ (void)disableDebugger
{
sendEventToAllConnections(kDebuggerMsgDisable);
}
+ (RCTInspectorPackagerConnection *)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];
RCTInspectorPackagerConnection *connection = socketConnections[key];
if (!connection) {
connection = [[RCTInspectorPackagerConnection alloc] initWithURL:inspectorURL];
socketConnections[key] = connection;
[connection connect];
}
return connection;
}
@end
#endif