blob: 6a8d37fbedc6d9ac9c344d44597ad376d08576e1 [file] [log] [blame]
/*
* 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 "ARDSignalingMessage.h"
#import "RTCLogging.h"
#import "ARDUtilities.h"
#import "RTCICECandidate+JSON.h"
#import "RTCSessionDescription+JSON.h"
static NSString const *kARDSignalingMessageTypeKey = @"type";
@implementation ARDSignalingMessage
@synthesize type = _type;
- (instancetype)initWithType:(ARDSignalingMessageType)type {
if (self = [super init]) {
_type = type;
}
return self;
}
- (NSString *)description {
return [[NSString alloc] initWithData:[self JSONData]
encoding:NSUTF8StringEncoding];
}
+ (ARDSignalingMessage *)messageFromJSONString:(NSString *)jsonString {
NSDictionary *values = [NSDictionary dictionaryWithJSONString:jsonString];
if (!values) {
RTCLogError(@"Error parsing signaling message JSON.");
return nil;
}
NSString *typeString = values[kARDSignalingMessageTypeKey];
ARDSignalingMessage *message = nil;
if ([typeString isEqualToString:@"candidate"]) {
RTCICECandidate *candidate =
[RTCICECandidate candidateFromJSONDictionary:values];
message = [[ARDICECandidateMessage alloc] initWithCandidate:candidate];
} else if ([typeString isEqualToString:@"offer"] ||
[typeString isEqualToString:@"answer"]) {
RTCSessionDescription *description =
[RTCSessionDescription descriptionFromJSONDictionary:values];
message =
[[ARDSessionDescriptionMessage alloc] initWithDescription:description];
} else if ([typeString isEqualToString:@"bye"]) {
message = [[ARDByeMessage alloc] init];
} else {
RTCLogError(@"Unexpected type: %@", typeString);
}
return message;
}
- (NSData *)JSONData {
return nil;
}
@end
@implementation ARDICECandidateMessage
@synthesize candidate = _candidate;
- (instancetype)initWithCandidate:(RTCICECandidate *)candidate {
if (self = [super initWithType:kARDSignalingMessageTypeCandidate]) {
_candidate = candidate;
}
return self;
}
- (NSData *)JSONData {
return [_candidate JSONData];
}
@end
@implementation ARDSessionDescriptionMessage
@synthesize sessionDescription = _sessionDescription;
- (instancetype)initWithDescription:(RTCSessionDescription *)description {
ARDSignalingMessageType type = kARDSignalingMessageTypeOffer;
NSString *typeString = description.type;
if ([typeString isEqualToString:@"offer"]) {
type = kARDSignalingMessageTypeOffer;
} else if ([typeString isEqualToString:@"answer"]) {
type = kARDSignalingMessageTypeAnswer;
} else {
NSAssert(NO, @"Unexpected type: %@", typeString);
}
if (self = [super initWithType:type]) {
_sessionDescription = description;
}
return self;
}
- (NSData *)JSONData {
return [_sessionDescription JSONData];
}
@end
@implementation ARDByeMessage
- (instancetype)init {
return [super initWithType:kARDSignalingMessageTypeBye];
}
- (NSData *)JSONData {
NSDictionary *message = @{
@"type": @"bye"
};
return [NSJSONSerialization dataWithJSONObject:message
options:NSJSONWritingPrettyPrinted
error:NULL];
}
@end