introduce response listener in native network

Summary:
Changelog: [Internal]

adding a private! api so we can parse text payloads

Reviewed By: mdvacca

Differential Revision: D83939903

Author: philIip

packages/react-native/Libraries/Network/RCTNetworking+Internal.h

@@ -0,0 +1,21 @@
+/*
+ * 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 "RCTNetworking.h"
+
+@protocol RCTNetworkingTextResponseHandler <NSObject>
+
+- (BOOL)canHandleNetworkingTextResponseForRequest:(NSURLRequest *)request;
+- (void)handleNetworkingResponseText:(NSString *)responseText request:(NSURLRequest *)request;
+
+@end
+
+@interface RCTNetworking (Internal)
+
+- (void)addTextResponseHandler:(id<RCTNetworkingTextResponseHandler>)handler;
+
+@end

packages/react-native/Libraries/Network/RCTNetworking.mm

@@ -12,14 +12,15 @@
 #import <React/RCTConvert.h>
 #import <React/RCTLog.h>
 #import <React/RCTNetworkTask.h>
-#import <React/RCTNetworking.h>
 #import <React/RCTUtils.h>
 
 #import <React/RCTHTTPRequestHandler.h>
 #import <react/featureflags/ReactNativeFeatureFlags.h>
 
 #import "RCTInspectorNetworkReporter.h"
 #import "RCTNetworkPlugins.h"
+#import "RCTNetworking+Internal.h"
+#import "RCTNetworking.h"
 
 typedef RCTURLRequestCancellationBlock (^RCTHTTPQueryResult)(NSError *error, NSDictionary<NSString *, id> *result);
 
@@ -153,6 +154,7 @@ @implementation RCTNetworking {
   NSArray<id<RCTURLRequestHandler>> * (^_handlersProvider)(RCTModuleRegistry *);
   NSMutableArray<id<RCTNetworkingRequestHandler>> *_requestHandlers;
   NSMutableArray<id<RCTNetworkingResponseHandler>> *_responseHandlers;
+  NSMutableArray<id<RCTNetworkingTextResponseHandler>> *_textResponseHandlers;
   dispatch_queue_t _requestQueue;
 }
 
@@ -672,6 +674,18 @@ - (void)sendRequest:(NSURLRequest *)request
     if (!(incrementalUpdates && [responseType isEqualToString:@"text"])) {
       [strongSelf sendData:data responseType:responseType response:response forTask:task];
     }
+
+    if ([responseType isEqualToString:@"text"]) {
+      for (id<RCTNetworkingTextResponseHandler> handler in strongSelf->_textResponseHandlers) {
+        if ([handler canHandleNetworkingTextResponseForRequest:task.request]) {
+          NSString *responseString = [RCTNetworking decodeTextData:data
+                                                      fromResponse:task.response
+                                                     withCarryData:[NSMutableData new]];
+          [handler handleNetworkingResponseText:responseString request:task.request];
+        }
+      }
+    }
+
     NSArray *responseJSON =
         @[ task.requestID, RCTNullIfNil(error.localizedDescription), error.code == kCFURLErrorTimedOut ? @YES : @NO ];
 
@@ -727,6 +741,14 @@ - (void)addResponseHandler:(id<RCTNetworkingResponseHandler>)handler
   [_responseHandlers addObject:handler];
 }
 
+- (void)addTextResponseHandler:(id<RCTNetworkingTextResponseHandler>)handler
+{
+  if (!_textResponseHandlers) {
+    _textResponseHandlers = [NSMutableArray new];
+  }
+  [_textResponseHandlers addObject:handler];
+}
+
 - (void)removeRequestHandler:(id<RCTNetworkingRequestHandler>)handler
 {
   [_requestHandlers removeObject:handler];