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1 /* | |
2 * libjingle | |
3 * Copyright 2014 Google Inc. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright notice, | |
9 * this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 #import "ARDAppEngineClient.h" | |
29 | |
30 #import "RTCLogging.h" | |
31 | |
32 #import "ARDJoinResponse.h" | |
33 #import "ARDMessageResponse.h" | |
34 #import "ARDSignalingMessage.h" | |
35 #import "ARDUtilities.h" | |
36 | |
37 // TODO(tkchin): move these to a configuration object. | |
38 static NSString * const kARDRoomServerHostUrl = | |
39 @"https://apprtc.appspot.com"; | |
40 static NSString * const kARDRoomServerJoinFormat = | |
41 @"https://apprtc.appspot.com/join/%@"; | |
42 static NSString * const kARDRoomServerMessageFormat = | |
43 @"https://apprtc.appspot.com/message/%@/%@"; | |
44 static NSString * const kARDRoomServerLeaveFormat = | |
45 @"https://apprtc.appspot.com/leave/%@/%@"; | |
46 | |
47 static NSString * const kARDAppEngineClientErrorDomain = @"ARDAppEngineClient"; | |
48 static NSInteger const kARDAppEngineClientErrorBadResponse = -1; | |
49 | |
50 @implementation ARDAppEngineClient | |
51 | |
52 #pragma mark - ARDRoomServerClient | |
53 | |
54 - (void)joinRoomWithRoomId:(NSString *)roomId | |
55 completionHandler:(void (^)(ARDJoinResponse *response, | |
56 NSError *error))completionHandler { | |
57 NSParameterAssert(roomId.length); | |
58 | |
59 NSString *urlString = | |
60 [NSString stringWithFormat:kARDRoomServerJoinFormat, roomId]; | |
61 NSURL *roomURL = [NSURL URLWithString:urlString]; | |
62 RTCLog(@"Joining room:%@ on room server.", roomId); | |
63 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:roomURL]; | |
64 request.HTTPMethod = @"POST"; | |
65 __weak ARDAppEngineClient *weakSelf = self; | |
66 [NSURLConnection sendAsyncRequest:request | |
67 completionHandler:^(NSURLResponse *response, | |
68 NSData *data, | |
69 NSError *error) { | |
70 ARDAppEngineClient *strongSelf = weakSelf; | |
71 if (error) { | |
72 if (completionHandler) { | |
73 completionHandler(nil, error); | |
74 } | |
75 return; | |
76 } | |
77 ARDJoinResponse *joinResponse = | |
78 [ARDJoinResponse responseFromJSONData:data]; | |
79 if (!joinResponse) { | |
80 if (completionHandler) { | |
81 NSError *error = [[self class] badResponseError]; | |
82 completionHandler(nil, error); | |
83 } | |
84 return; | |
85 } | |
86 if (completionHandler) { | |
87 completionHandler(joinResponse, nil); | |
88 } | |
89 }]; | |
90 } | |
91 | |
92 - (void)sendMessage:(ARDSignalingMessage *)message | |
93 forRoomId:(NSString *)roomId | |
94 clientId:(NSString *)clientId | |
95 completionHandler:(void (^)(ARDMessageResponse *response, | |
96 NSError *error))completionHandler { | |
97 NSParameterAssert(message); | |
98 NSParameterAssert(roomId.length); | |
99 NSParameterAssert(clientId.length); | |
100 | |
101 NSData *data = [message JSONData]; | |
102 NSString *urlString = | |
103 [NSString stringWithFormat: | |
104 kARDRoomServerMessageFormat, roomId, clientId]; | |
105 NSURL *url = [NSURL URLWithString:urlString]; | |
106 RTCLog(@"C->RS POST: %@", message); | |
107 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; | |
108 request.HTTPMethod = @"POST"; | |
109 request.HTTPBody = data; | |
110 __weak ARDAppEngineClient *weakSelf = self; | |
111 [NSURLConnection sendAsyncRequest:request | |
112 completionHandler:^(NSURLResponse *response, | |
113 NSData *data, | |
114 NSError *error) { | |
115 ARDAppEngineClient *strongSelf = weakSelf; | |
116 if (error) { | |
117 if (completionHandler) { | |
118 completionHandler(nil, error); | |
119 } | |
120 return; | |
121 } | |
122 ARDMessageResponse *messageResponse = | |
123 [ARDMessageResponse responseFromJSONData:data]; | |
124 if (!messageResponse) { | |
125 if (completionHandler) { | |
126 NSError *error = [[self class] badResponseError]; | |
127 completionHandler(nil, error); | |
128 } | |
129 return; | |
130 } | |
131 if (completionHandler) { | |
132 completionHandler(messageResponse, nil); | |
133 } | |
134 }]; | |
135 } | |
136 | |
137 - (void)leaveRoomWithRoomId:(NSString *)roomId | |
138 clientId:(NSString *)clientId | |
139 completionHandler:(void (^)(NSError *error))completionHandler { | |
140 NSParameterAssert(roomId.length); | |
141 NSParameterAssert(clientId.length); | |
142 | |
143 NSString *urlString = | |
144 [NSString stringWithFormat:kARDRoomServerLeaveFormat, roomId, clientId]; | |
145 NSURL *url = [NSURL URLWithString:urlString]; | |
146 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; | |
147 request.HTTPMethod = @"POST"; | |
148 NSURLResponse *response = nil; | |
149 NSError *error = nil; | |
150 // We want a synchronous request so that we know that we've left the room on | |
151 // room server before we do any further work. | |
152 RTCLog(@"C->RS: BYE"); | |
153 [NSURLConnection sendSynchronousRequest:request | |
154 returningResponse:&response | |
155 error:&error]; | |
156 if (error) { | |
157 RTCLogError(@"Error leaving room %@ on room server: %@", | |
158 roomId, error.localizedDescription); | |
159 if (completionHandler) { | |
160 completionHandler(error); | |
161 } | |
162 return; | |
163 } | |
164 RTCLog(@"Left room:%@ on room server.", roomId); | |
165 if (completionHandler) { | |
166 completionHandler(nil); | |
167 } | |
168 } | |
169 | |
170 #pragma mark - Private | |
171 | |
172 + (NSError *)badResponseError { | |
173 NSError *error = | |
174 [[NSError alloc] initWithDomain:kARDAppEngineClientErrorDomain | |
175 code:kARDAppEngineClientErrorBadResponse | |
176 userInfo:@{ | |
177 NSLocalizedDescriptionKey: @"Error parsing response.", | |
178 }]; | |
179 return error; | |
180 } | |
181 | |
182 @end | |
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