Implement mac version of AppRTCDemo.
- Refactored and moved AppRTCDemo to support sharing AppRTC connection code between iOS and mac counterparts.
- Refactored OpenGL rendering code to be shared between iOS and mac counterparts.
- iOS AppRTCDemo now respects video aspect ratio.
BUG=2168
R=fischman@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/17589004
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6291 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/examples/objc/AppRTCDemo/APPRTCAppClient.m b/talk/examples/objc/AppRTCDemo/APPRTCAppClient.m
new file mode 100644
index 0000000..c412aef
--- /dev/null
+++ b/talk/examples/objc/AppRTCDemo/APPRTCAppClient.m
@@ -0,0 +1,353 @@
+/*
+ * libjingle
+ * Copyright 2013, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+#import "APPRTCAppClient.h"
+
+#import <dispatch/dispatch.h>
+
+#import "GAEChannelClient.h"
+#import "RTCICEServer.h"
+#import "RTCMediaConstraints.h"
+#import "RTCPair.h"
+
+@interface APPRTCAppClient ()
+
+@property(nonatomic, weak, readonly) id<GAEMessageHandler> messageHandler;
+@property(nonatomic, copy) NSString* baseURL;
+@property(nonatomic, strong) GAEChannelClient* gaeChannel;
+@property(nonatomic, copy) NSString* postMessageUrl;
+@property(nonatomic, copy) NSString* pcConfig;
+@property(nonatomic, strong) NSMutableString* roomHtml;
+@property(atomic, strong) NSMutableArray* sendQueue;
+@property(nonatomic, copy) NSString* token;
+
+@property(nonatomic, assign) BOOL verboseLogging;
+
+@end
+
+@implementation APPRTCAppClient {
+ dispatch_queue_t _backgroundQueue;
+}
+
+- (id)initWithDelegate:(id<APPRTCAppClientDelegate>)delegate
+ messageHandler:(id<GAEMessageHandler>)handler {
+ if (self = [super init]) {
+ _delegate = delegate;
+ _messageHandler = handler;
+ _backgroundQueue = dispatch_queue_create("RTCBackgroundQueue",
+ DISPATCH_QUEUE_SERIAL);
+ _sendQueue = [NSMutableArray array];
+ // Uncomment to see Request/Response logging.
+ // _verboseLogging = YES;
+ }
+ return self;
+}
+
+#pragma mark - Public methods
+
+- (void)connectToRoom:(NSURL*)url {
+ self.roomHtml = [NSMutableString stringWithCapacity:20000];
+ NSURLRequest* request = [NSURLRequest requestWithURL:url];
+ [NSURLConnection connectionWithRequest:request delegate:self];
+}
+
+- (void)sendData:(NSData*)data {
+ [self maybeLogMessage:@"Send message"];
+
+ dispatch_async(_backgroundQueue, ^{
+ [self.sendQueue addObject:[data copy]];
+
+ if ([self.postMessageUrl length] < 1) {
+ return;
+ }
+ for (NSData* data in self.sendQueue) {
+ NSString* url =
+ [NSString stringWithFormat:@"%@/%@",
+ self.baseURL, self.postMessageUrl];
+ [self sendData:data withUrl:url];
+ }
+ [self.sendQueue removeAllObjects];
+ });
+}
+
+#pragma mark - Internal methods
+
+- (NSString*)findVar:(NSString*)name strippingQuotes:(BOOL)strippingQuotes {
+ NSError* error;
+ NSString* pattern =
+ [NSString stringWithFormat:@".*\n *var %@ = ([^\n]*);\n.*", name];
+ NSRegularExpression* regexp =
+ [NSRegularExpression regularExpressionWithPattern:pattern
+ options:0
+ error:&error];
+ NSAssert(!error,
+ @"Unexpected error compiling regex: ",
+ error.localizedDescription);
+
+ NSRange fullRange = NSMakeRange(0, [self.roomHtml length]);
+ NSArray* matches =
+ [regexp matchesInString:self.roomHtml options:0 range:fullRange];
+ if ([matches count] != 1) {
+ NSString* format = @"%lu matches for %@ in %@";
+ NSString* message = [NSString stringWithFormat:format,
+ (unsigned long)[matches count], name, self.roomHtml];
+ [self.delegate appClient:self didErrorWithMessage:message];
+ return nil;
+ }
+ NSRange matchRange = [matches[0] rangeAtIndex:1];
+ NSString* value = [self.roomHtml substringWithRange:matchRange];
+ if (strippingQuotes) {
+ NSAssert([value length] > 2,
+ @"Can't strip quotes from short string: [%@]",
+ value);
+ NSAssert(([value characterAtIndex:0] == '\'' &&
+ [value characterAtIndex:[value length] - 1] == '\''),
+ @"Can't strip quotes from unquoted string: [%@]",
+ value);
+ value = [value substringWithRange:NSMakeRange(1, [value length] - 2)];
+ }
+ return value;
+}
+
+- (void)maybeLogMessage:(NSString*)message {
+ if (self.verboseLogging) {
+ NSLog(@"%@", message);
+ }
+}
+
+- (void)sendData:(NSData*)data withUrl:(NSString*)url {
+ NSMutableURLRequest* request =
+ [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
+ request.HTTPMethod = @"POST";
+ [request setHTTPBody:data];
+ NSURLResponse* response;
+ NSError* error;
+ NSData* responseData = [NSURLConnection sendSynchronousRequest:request
+ returningResponse:&response
+ error:&error];
+ NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
+ int status = [httpResponse statusCode];
+ NSAssert(status == 200,
+ @"Bad response [%d] to message: %@\n\n%@",
+ status,
+ [NSString stringWithUTF8String:[data bytes]],
+ [NSString stringWithUTF8String:[responseData bytes]]);
+}
+
+- (void)updateICEServers:(NSMutableArray*)ICEServers
+ withTurnServer:(NSString*)turnServerUrl {
+ if ([turnServerUrl length] < 1) {
+ [self.delegate appClient:self didReceiveICEServers:ICEServers];
+ return;
+ }
+ dispatch_async(_backgroundQueue, ^(void) {
+ NSMutableURLRequest* request = [NSMutableURLRequest
+ requestWithURL:[NSURL URLWithString:turnServerUrl]];
+ [request addValue:@"Mozilla/5.0" forHTTPHeaderField:@"user-agent"];
+ [request addValue:@"https://apprtc.appspot.com"
+ forHTTPHeaderField:@"origin"];
+ NSURLResponse* response;
+ NSError* error;
+ NSData* responseData = [NSURLConnection sendSynchronousRequest:request
+ returningResponse:&response
+ error:&error];
+ if (!error) {
+ NSDictionary* json =
+ [NSJSONSerialization JSONObjectWithData:responseData
+ options:0
+ error:&error];
+ NSAssert(!error, @"Unable to parse. %@", error.localizedDescription);
+ NSString* username = json[@"username"];
+ NSString* password = json[@"password"];
+ NSArray* uris = json[@"uris"];
+ for (int i = 0; i < [uris count]; ++i) {
+ NSString* turnServer = [uris objectAtIndex:i];
+ RTCICEServer* ICEServer =
+ [[RTCICEServer alloc] initWithURI:[NSURL URLWithString:turnServer]
+ username:username
+ password:password];
+ NSLog(@"Added ICE Server: %@", ICEServer);
+ [ICEServers addObject:ICEServer];
+ }
+ } else {
+ NSLog(@"Unable to get TURN server. Error: %@", error.description);
+ }
+
+ dispatch_async(dispatch_get_main_queue(), ^(void) {
+ [self.delegate appClient:self didReceiveICEServers:ICEServers];
+ });
+ });
+}
+
+#pragma mark - NSURLConnectionDataDelegate methods
+
+- (void)connection:(NSURLConnection*)connection didReceiveData:(NSData*)data {
+ NSString* roomHtml = [NSString stringWithUTF8String:[data bytes]];
+ NSString* message =
+ [NSString stringWithFormat:@"Received %lu chars",
+ (unsigned long)[roomHtml length]];
+ [self maybeLogMessage:message];
+ [self.roomHtml appendString:roomHtml];
+}
+
+- (void)connection:(NSURLConnection*)connection
+ didReceiveResponse:(NSURLResponse*)response {
+ NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
+ int statusCode = [httpResponse statusCode];
+ [self
+ maybeLogMessage:
+ [NSString stringWithFormat:
+ @"Response received\nURL\n%@\nStatus [%d]\nHeaders\n%@",
+ [httpResponse URL],
+ statusCode,
+ [httpResponse allHeaderFields]]];
+ NSAssert(statusCode == 200, @"Invalid response of %d received.", statusCode);
+}
+
+- (void)connectionDidFinishLoading:(NSURLConnection*)connection {
+ NSString* message =
+ [NSString stringWithFormat:@"finished loading %lu chars",
+ (unsigned long)[self.roomHtml length]];
+ [self maybeLogMessage:message];
+ NSRegularExpression* fullRegex =
+ [NSRegularExpression regularExpressionWithPattern:@"room is full"
+ options:0
+ error:nil];
+ if ([fullRegex
+ numberOfMatchesInString:self.roomHtml
+ options:0
+ range:NSMakeRange(0, [self.roomHtml length])]) {
+ NSString* message = @"Room full, dropping peerconnection.";
+ [self.delegate appClient:self didErrorWithMessage:message];
+ return;
+ }
+
+ NSString* fullUrl = [[[connection originalRequest] URL] absoluteString];
+ NSRange queryRange = [fullUrl rangeOfString:@"?"];
+ self.baseURL = [fullUrl substringToIndex:queryRange.location];
+ [self maybeLogMessage:[NSString
+ stringWithFormat:@"Base URL: %@", self.baseURL]];
+
+ self.initiator = [[self findVar:@"initiator" strippingQuotes:NO] boolValue];
+ self.token = [self findVar:@"channelToken" strippingQuotes:YES];
+ if (!self.token)
+ return;
+ [self maybeLogMessage:[NSString stringWithFormat:@"Token: %@", self.token]];
+
+ NSString* roomKey = [self findVar:@"roomKey" strippingQuotes:YES];
+ NSString* me = [self findVar:@"me" strippingQuotes:YES];
+ if (!roomKey || !me)
+ return;
+ self.postMessageUrl =
+ [NSString stringWithFormat:@"/message?r=%@&u=%@", roomKey, me];
+ [self maybeLogMessage:[NSString stringWithFormat:@"POST message URL: %@",
+ self.postMessageUrl]];
+
+ NSString* pcConfig = [self findVar:@"pcConfig" strippingQuotes:NO];
+ if (!pcConfig)
+ return;
+ [self maybeLogMessage:[NSString
+ stringWithFormat:@"PC Config JSON: %@", pcConfig]];
+
+ NSString* turnServerUrl = [self findVar:@"turnUrl" strippingQuotes:YES];
+ if (turnServerUrl) {
+ [self maybeLogMessage:[NSString
+ stringWithFormat:@"TURN server request URL: %@",
+ turnServerUrl]];
+ }
+
+ NSError* error;
+ NSData* pcData = [pcConfig dataUsingEncoding:NSUTF8StringEncoding];
+ NSDictionary* json =
+ [NSJSONSerialization JSONObjectWithData:pcData options:0 error:&error];
+ NSAssert(!error, @"Unable to parse. %@", error.localizedDescription);
+ NSArray* servers = [json objectForKey:@"iceServers"];
+ NSMutableArray* ICEServers = [NSMutableArray array];
+ for (NSDictionary* server in servers) {
+ NSString* url = [server objectForKey:@"urls"];
+ NSString* username = json[@"username"];
+ NSString* credential = [server objectForKey:@"credential"];
+ if (!username) {
+ username = @"";
+ }
+ if (!credential) {
+ credential = @"";
+ }
+ [self maybeLogMessage:[NSString
+ stringWithFormat:@"url [%@] - credential [%@]",
+ url,
+ credential]];
+ RTCICEServer* ICEServer =
+ [[RTCICEServer alloc] initWithURI:[NSURL URLWithString:url]
+ username:username
+ password:credential];
+ NSLog(@"Added ICE Server: %@", ICEServer);
+ [ICEServers addObject:ICEServer];
+ }
+ [self updateICEServers:ICEServers withTurnServer:turnServerUrl];
+
+ NSString* mc = [self findVar:@"mediaConstraints" strippingQuotes:NO];
+ if (mc) {
+ error = nil;
+ NSData* mcData = [mc dataUsingEncoding:NSUTF8StringEncoding];
+ json =
+ [NSJSONSerialization JSONObjectWithData:mcData options:0 error:&error];
+ NSAssert(!error, @"Unable to parse. %@", error.localizedDescription);
+ id video = json[@"video"];
+ if ([video isKindOfClass:[NSDictionary class]]) {
+ NSDictionary* mandatory = video[@"mandatory"];
+ NSMutableArray* mandatoryContraints =
+ [NSMutableArray arrayWithCapacity:[mandatory count]];
+ [mandatory enumerateKeysAndObjectsUsingBlock:^(
+ id key, id obj, BOOL* stop) {
+ [mandatoryContraints addObject:[[RTCPair alloc] initWithKey:key
+ value:obj]];
+ }];
+ // TODO(tkchin): figure out json formats for optional constraints.
+ _videoConstraints =
+ [[RTCMediaConstraints alloc]
+ initWithMandatoryConstraints:mandatoryContraints
+ optionalConstraints:nil];
+ } else if ([video isKindOfClass:[NSNumber class]] && [video boolValue]) {
+ _videoConstraints = [[RTCMediaConstraints alloc] init];
+ }
+ }
+
+ [self
+ maybeLogMessage:[NSString
+ stringWithFormat:@"About to open GAE with token: %@",
+ self.token]];
+ self.gaeChannel =
+ [[GAEChannelClient alloc] initWithToken:self.token
+ delegate:self.messageHandler];
+}
+
+@end