react-native/Libraries/Network/RCTDataManager.m

82 lines
2.7 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTDataManager.h"
#import "RCTAssert.h"
#import "RCTConvert.h"
#import "RCTLog.h"
#import "RCTUtils.h"
@implementation RCTDataManager
RCT_EXPORT_MODULE()
/**
* Executes a network request.
* The responseSender block won't be called on same thread as called.
*/
RCT_EXPORT_METHOD(queryData:(NSString *)queryType
withQuery:(NSDictionary *)query
queryHash:(__unused NSString *)queryHash
responseSender:(RCTResponseSenderBlock)responseSender)
{
if ([queryType isEqualToString:@"http"]) {
// Build request
NSURL *URL = [RCTConvert NSURL:query[@"url"]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
request.HTTPMethod = [RCTConvert NSString:query[@"method"]] ?: @"GET";
request.allHTTPHeaderFields = [RCTConvert NSDictionary:query[@"headers"]];
request.HTTPBody = [RCTConvert NSData:query[@"data"]];
// Build data task
NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *connectionError) {
// Build response
NSDictionary *responseJSON;
if (connectionError == nil) {
NSStringEncoding encoding = NSUTF8StringEncoding;
if (response.textEncodingName) {
CFStringEncoding cfEncoding = CFStringConvertIANACharSetNameToEncoding((CFStringRef)response.textEncodingName);
encoding = CFStringConvertEncodingToNSStringEncoding(cfEncoding);
}
NSHTTPURLResponse *httpResponse = nil;
if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
// Might be a local file request
httpResponse = (NSHTTPURLResponse *)response;
}
responseJSON = @{
@"status": @([httpResponse statusCode] ?: 200),
@"responseHeaders": [httpResponse allHeaderFields] ?: @{},
@"responseText": [[NSString alloc] initWithData:data encoding:encoding] ?: @""
};
} else {
responseJSON = @{
@"status": @0,
@"responseHeaders": @{},
@"responseText": [connectionError localizedDescription] ?: [NSNull null]
};
}
// Send response (won't be sent on same thread as caller)
responseSender(@[RCTJSONStringify(responseJSON, NULL)]);
}];
[task resume];
} else {
RCTLogError(@"unsupported query type %@", queryType);
}
}
@end