public static final class ResponseStatusCodes {
public static final int CONTINUE_100 = HttpResponseStatus.CONTINUE.code();
public static final int SWITCHING_PROTOCOLS_101 = HttpResponseStatus.SWITCHING_PROTOCOLS.code();
public static final int OK_200 = HttpResponseStatus.OK.code();
public static final int MOVED_PERMANENTLY_301 = HttpResponseStatus.MOVED_PERMANENTLY.code();
public static final int FOUND_302 = HttpResponseStatus.FOUND.code();
public static final int SEE_OTHER_303 = HttpResponseStatus.SEE_OTHER.code();
public static final int NOT_MODIFIED_304 = HttpResponseStatus.NOT_MODIFIED.code();
public static final int TEMPORARY_REDIRECT_307 = HttpResponseStatus.TEMPORARY_REDIRECT.code();
public static final int UNAUTHORIZED_401 = HttpResponseStatus.UNAUTHORIZED.code();
public static final int PROXY_AUTHENTICATION_REQUIRED_407 =
HttpResponseStatus.PROXY_AUTHENTICATION_REQUIRED.code();
private ResponseStatusCodes() {}
}
private void messageReceive(ChannelHandlerContext ctx, DefaultFullHttpResponse response) {
/** send next cmd * */
switch (state) {
case PLAY:
String rtpInfo = response.headers().get("RTP-Info");
setState(RTSP.PLAYING);
break;
case SETUP:
// session
String sessionId = response.headers().get("Session");
if (null != sessionId) {
Matcher matcher = Pattern.compile("([^;]+)").matcher(sessionId);
if (matcher.find()) {
rtspStack.setSession(matcher.group(1));
} else {
rtspStack.setSession(sessionId);
}
}
// transport
InetSocketAddress remoteHost = (InetSocketAddress) ctx.channel().remoteAddress();
String transport = response.headers().get("Transport");
RtpSessionExt rtp = rtspStack.getLastRtpSession();
Matcher matcher = Pattern.compile("([^\\s=;]+)=(([^-;]+)(-([^;]+))?)").matcher(transport);
while (matcher.find()) {
String key = matcher.group(1).toLowerCase();
if ("server_port".equals(key)) {
rtp.connectRtp(
new InetSocketAddress(
remoteHost.getHostString(), Integer.valueOf(matcher.group(3))));
rtp.connectRtcp(
new InetSocketAddress(
remoteHost.getHostString(), Integer.valueOf(matcher.group(5))));
} else if ("ssrc".equals(key)) {
rtp.setSsrc(Long.parseLong(matcher.group(2).trim(), 16));
} else if ("interleaved".equals(key)) {
rtp.setRtpChunk(Integer.valueOf(matcher.group(3)));
rtp.setRtcpChunk(Integer.valueOf(matcher.group(5)));
} else {
logger.warn("ignored [{}={}]", key, matcher.group(2));
}
}
// next action
boolean finish = setup(sd, mediaIndex++);
if (finish) {
sendPlay();
setState(RTSP.PLAY);
}
break;
case DESCRIBE:
if (response.getStatus().code() == HttpResponseStatus.UNAUTHORIZED.code()) {
sendDescribe(buildAuthorizationString(response));
break;
}
String desciptor = response.content().toString(Charset.forName("UTF8"));
SessionDescriptionImpl sd = new SessionDescriptionImpl();
StringTokenizer tokenizer = new StringTokenizer(desciptor);
while (tokenizer.hasMoreChars()) {
String line = tokenizer.nextToken();
try {
SDPParser paser = ParserFactory.createParser(line);
if (null != paser) {
SDPField obj = paser.parse();
sd.addField(obj);
}
} catch (ParseException e) {
logger.warn("fail parse [{}]", line, e);
}
}
this.sd = sd;
mediaIndex = 0;
setup(sd, mediaIndex++);
// 心跳
rtspStack
.getChannel()
.pipeline()
.addFirst("ping", new IdleStateHandler(30, 15, 13, TimeUnit.SECONDS));
//
rtspStack.setSessionDescription(sd);
break;
case OPTIONS:
if (response.getStatus().code() == HttpResponseStatus.UNAUTHORIZED.code()) {
sendDescribe(buildAuthorizationString(response));
} else {
sendDescribe();
}
setState(RTSP.DESCRIBE);
break;
case PLAYING:
break;
default:
logger.warn("I dont't Known What to do with {}", response);
break;
}
}
@GET
@ApiOperation(
value = "Subscribe Event Stream",
consumes = "text/event-stream",
produces = "text/event-stream",
authorizations = @Authorization(value = "read_key"),
notes = "Subscribes the event stream.")
@ApiResponses(value = {@ApiResponse(code = 400, message = "Project does not exist.")})
@Path("/subscribe")
@IgnorePermissionCheck
@IgnoreApi
public void subscribe(RakamHttpRequest request) {
if (!Objects.equals(request.headers().get(HttpHeaders.Names.ACCEPT), "text/event-stream")) {
request
.response(
"the response should accept text/event-stream", HttpResponseStatus.NOT_ACCEPTABLE)
.end();
return;
}
RakamHttpRequest.StreamResponse response = request.streamResponse();
List<String> data = request.params().get("data");
if (data == null || data.isEmpty()) {
response
.send(
"result",
encode(
errorMessage("data query parameter is required", HttpResponseStatus.BAD_REQUEST)))
.end();
return;
}
StreamQuery query;
try {
query = JsonHelper.readSafe(data.get(0), StreamQuery.class);
} catch (IOException e) {
response
.send(
"result",
encode(errorMessage("json couldn't parsed", HttpResponseStatus.BAD_REQUEST)))
.end();
return;
}
List<String> api_key = request.params().get("api_key");
if (api_key == null
|| api_key.isEmpty()
|| !metastore.checkPermission(
query.project, Metastore.AccessKeyType.READ_KEY, api_key.get(0))) {
response.send("result", HttpResponseStatus.UNAUTHORIZED.reasonPhrase()).end();
return;
}
List<CollectionStreamQuery> collect;
try {
collect =
query
.collections
.stream()
.map(
collection -> {
Expression expression = null;
try {
expression =
collection.filter == null
? null
: sqlParser.createExpression(collection.filter);
} catch (ParsingException e) {
ObjectNode obj =
errorMessage(
format(
"Couldn't parse %s: %s", collection.filter, e.getErrorMessage()),
HttpResponseStatus.BAD_REQUEST);
request.response(encode(obj)).end();
throw e;
}
return new CollectionStreamQuery(
collection.name, expression == null ? null : expression.toString());
})
.collect(Collectors.toList());
} catch (ParsingException e) {
return;
}
EventStream.EventStreamer subscribe =
stream.subscribe(
query.project, collect, query.columns, new StreamResponseAdapter(response));
eventLoopGroup.schedule(
new Runnable() {
@Override
public void run() {
if (response.isClosed()) {
subscribe.shutdown();
} else {
subscribe.sync();
eventLoopGroup.schedule(this, 3, TimeUnit.SECONDS);
}
}
},
3,
TimeUnit.SECONDS);
}
private void notAuthorised(HttpServerResponse response) {
response.setStatusCode(HttpResponseStatus.UNAUTHORIZED.code());
response.setStatusMessage(HttpResponseStatus.UNAUTHORIZED.reasonPhrase());
response.end();
}
