Merge pull request #146 from mk/http-basic-auth

Add support for http basic auth, closes #36

SocketRocket/SRWebSocket.m

@@ -219,6 +219,7 @@ typedef void (^data_callback)(SRWebSocket *webSocket,  NSData *data);
     NSString *_closeReason;
     
     NSString *_secKey;
+    NSString *_basicAuthorizationString;
     
     BOOL _pinnedCertFound;
     
@@ -519,6 +520,22 @@ static __strong NSData *CRLFCRLF;
         }
     }
  
+    // set header for http basic auth
+    if (_url.user.length && _url.password.length) {
+        NSData *userAndPassword = [[NSString stringWithFormat:@"%@:%@", _url.user, _url.password] dataUsingEncoding:NSUTF8StringEncoding];
+        NSString *userAndPasswordBase64Encoded;
+        if ([keyBytes respondsToSelector:@selector(base64EncodedStringWithOptions:)]) {
+            userAndPasswordBase64Encoded = [userAndPassword base64EncodedStringWithOptions:0];
+        } else {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+            userAndPasswordBase64Encoded = [userAndPassword base64Encoding];
+#pragma clang diagnostic pop
+        }
+        _basicAuthorizationString = [NSString stringWithFormat:@"Basic %@", userAndPasswordBase64Encoded];
+        CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Authorization"), (__bridge CFStringRef)_basicAuthorizationString);
+    }
+
     CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Upgrade"), CFSTR("websocket"));
     CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Connection"), CFSTR("Upgrade"));
     CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Sec-WebSocket-Key"), (__bridge CFStringRef)_secKey);