67 lines
2.3 KiB
Mathematica
67 lines
2.3 KiB
Mathematica
|
/*
|
||
|
|
* Copyright 2014 The WebRTC Project Authors. All rights reserved.
|
||
|
|
*
|
||
|
|
* Use of this source code is governed by a BSD-style license
|
||
|
|
* that can be found in the LICENSE file in the root of the source
|
||
|
|
* tree. An additional intellectual property rights grant can be found
|
||
|
|
* in the file PATENTS. All contributing project authors may
|
||
|
|
* be found in the AUTHORS file in the root of the source tree.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#import "ARDCEODTURNClient.h"
|
||
|
|
|
||
|
|
#import "ARDUtilities.h"
|
||
|
|
#import "RTCIceServer+JSON.h"
|
||
|
|
|
||
|
|
// TODO(tkchin): move this to a configuration object.
|
||
|
|
static NSString *kTURNOriginURLString = @"https://apprtc.appspot.com";
|
||
|
|
static NSString *kARDCEODTURNClientErrorDomain = @"ARDCEODTURNClient";
|
||
|
|
static NSInteger kARDCEODTURNClientErrorBadResponse = -1;
|
||
|
|
|
||
|
|
@implementation ARDCEODTURNClient {
|
||
|
|
NSURL *_url;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (instancetype)initWithURL:(NSURL *)url {
|
||
|
|
NSParameterAssert([url absoluteString].length);
|
||
|
|
if (self = [super init]) {
|
||
|
|
_url = url;
|
||
|
|
}
|
||
|
|
return self;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)requestServersWithCompletionHandler:
|
||
|
|
(void (^)(NSArray *turnServers,
|
||
|
|
NSError *error))completionHandler {
|
||
|
|
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:_url];
|
||
|
|
// We need to set origin because TURN provider whitelists requests based on
|
||
|
|
// origin.
|
||
|
|
[request addValue:@"Mozilla/5.0" forHTTPHeaderField:@"user-agent"];
|
||
|
|
[request addValue:kTURNOriginURLString forHTTPHeaderField:@"origin"];
|
||
|
|
[NSURLConnection sendAsyncRequest:request
|
||
|
|
completionHandler:^(NSURLResponse *response,
|
||
|
|
NSData *data,
|
||
|
|
NSError *error) {
|
||
|
|
NSArray *turnServers = [NSArray array];
|
||
|
|
if (error) {
|
||
|
|
completionHandler(nil, error);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
NSDictionary *dict = [NSDictionary dictionaryWithJSONData:data];
|
||
|
|
turnServers = @[ [RTCIceServer serverFromCEODJSONDictionary:dict] ];
|
||
|
|
if (!turnServers) {
|
||
|
|
NSError *responseError =
|
||
|
|
[[NSError alloc] initWithDomain:kARDCEODTURNClientErrorDomain
|
||
|
|
code:kARDCEODTURNClientErrorBadResponse
|
||
|
|
userInfo:@{
|
||
|
|
NSLocalizedDescriptionKey: @"Bad TURN response.",
|
||
|
|
}];
|
||
|
|
completionHandler(turnServers, responseError);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
completionHandler(turnServers, nil);
|
||
|
|
}];
|
||
|
|
}
|
||
|
|
|
||
|
|
@end
|