Response headers to image - iOS (#33880)

Summary:
Please see this issue #33034 for details on the problem solved by this PR.

## Changelog

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[CATEGORY] [TYPE] - Message
[ios] [changed] - HTTP Response headers added to the error object passed to JS code.

Pull Request resolved: #33880

Test Plan:
Tested:
(All tests done on images in rn-tester app, which is a part of this repo)
1. onError method in case image has an HTTP Error
2. onError method in case of non http error (DNS error)
3. Successful image load

Reviewed By: cortinico

Differential Revision: D37066159

Pulled By: cipolleschi

fbshipit-source-id: 546f7678fa0321fe6c6fbef55288715cb6ddc2fd

Libraries/Image/RCTImageLoader.mm

@@ -56,6 +56,15 @@ static uint64_t monotonicTimeGetCurrentNanoseconds(void)
   return (mach_absolute_time() * tb_info.numer) / tb_info.denom;
 }
 
+static NSError* addResponseHeadersToError(NSError* originalError, NSHTTPURLResponse* response) {
+    NSMutableDictionary<NSString*, id>* _userInfo =  (NSMutableDictionary<NSString*, id>*)originalError.userInfo.mutableCopy;
+    _userInfo[@"httpStatusCode"] = [NSNumber numberWithInt:response.statusCode];
+    _userInfo[@"httpResponseHeaders"] = response.allHeaderFields;
+    NSError *error = [NSError errorWithDomain:originalError.domain code:originalError.code userInfo:_userInfo];
+
+    return error;
+}
+
 @interface RCTImageLoader() <NativeImageLoaderIOSSpec, RCTImageLoaderWithAttributionProtocol>
 
 @end
@@ -523,6 +532,10 @@ - (RCTImageURLLoaderRequest *)_loadImageOrDataWithURLRequest:(NSURLRequest *)req
         }
       });
     } else if (!std::atomic_load(cancelled.get())) {
+        if (response && error && [response isKindOfClass: [NSHTTPURLResponse class]]) {
+            NSHTTPURLResponse* _httpResp = (NSHTTPURLResponse*)response;
+            error = addResponseHeadersToError(error, _httpResp);
+        }
       completionBlock(error, imageOrData, imageMetadata, cacheResult, response);
     }
   };

Libraries/Image/RCTImageView.mm

@@ -378,7 +378,7 @@ - (void)imageLoaderLoadedImage:(UIImage *)loadedImage error:(NSError *)error for
     });
 
     if (_onError) {
-      _onError(@{ @"error": error.localizedDescription });
+      _onError(@{ @"error": error.localizedDescription, @"responseCode": (error.userInfo[@"httpStatusCode"]?: [NSNull null]), @"httpResponseHeaders": (error.userInfo[@"httpResponseHeaders"] ?: [NSNull null]) });
     }
     if (_onLoadEnd) {
       _onLoadEnd(nil);