gilmaimon / tinywebsockets Goto Github PK

Make it easier for users to check if a message is an event (ping, pong, open, close) or text/binary.
Also, maybe close messages should arrive the user (which means some way to return error from readBlocking)

hello
for my work, I want to implement socket for gsm module that works with at command. when i see the network directory all file was header file. exactly where i should create my own implementation of client and which class should extend?

Messages are not masked by default in order to simplify the communication and reduce work on the micro controller.

Add server class that accepts connections and relies on a TcpServer (not implemented)

Add support for websockets over ssl. At first only client side and eventually server side.
Consider OpenSSL.

Examples:

• echo server example (echo.websockets.org)
• keep alive with pings and pongs
• example usage of active poll
• example for blocking message reading interface

Add some to the readme (events handling, blocking interface).

I'm trying to poll the server for incoming connections and if true create a WebsocketsClient named client. In my first approach I call poll() on every new loop. As soon as a client is connected, it gets disconnected again when the loop rolls over and reaches " if(server.poll()) {" again.

What's the problem here?

void loop() {
  static WebsocketsClient client;
 
  if(server.poll()) {
    client = server.accept();
    Serial.println("new client!");
  }
  else {
    Serial.println("no new client");
  }

  if(client.available()) {
    WebsocketsMessage msg = client.readBlocking();

    // log
    Serial.print("Got Message: ");
    Serial.println(msg.data());

    // return echo
    client.send("Echo: " + msg.data());
    Serial.println("Echo: " + msg.data());
  }

  delay(1000);
}

i cloned the lib in my arduino libraries folders like

git clone https://github.com/gilmaimon/TinyWebsockets.git

now when i tried to upload sample code am getting error

tiny_websockets/client.hpp: No such file or directory

possibly due to bad structure of library folder

• A message should always be complete and never fragmented (or partial)
• Should the user be notified on changes?
• An option to select fragmented messages
• Usage of streams for sending/receiving

Handshake keys are not randomly generated in order to spare that work from microcontrollers.

Using Ubuntu 20.04, I get this error when doing "make demo_echo_client" 👍
Scanning dependencies of target tiny_websockets_lib
[ 8%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/crypto.cpp.o
[ 16%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/linux_tcp.cpp.o
[ 25%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/message.cpp.o
[ 33%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/openssl_secure_tcp_client.cpp.o
[ 41%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/websockets_client.cpp.o
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp: In function ‘websockets::HandshakeRequestResult websockets::generateHandshake(const WSString&, const WSString&, const std::vector<std::pair<std::__cxx11::basic_string, std::__cxx11::basic_string > >&)’:
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:111:25: error: moving a local object in a return statement prevents copy elision [-Werror=pessimizing-move]
111 | return std::move(result);
| ~~~~~~~~~^~~~~~~~
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:111:25: note: remove ‘std::move’ call
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp: In member function ‘bool websockets::WebsocketsClient::send(const char*)’:
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:352:33: error: ‘strlen’ was not declared in this scope
352 | return this->send(data, strlen(data));
| ^~~~~~
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:6:1: note: ‘strlen’ is defined in header ‘’; did you forget to ‘#include ’?
5 | #include <tiny_websockets/internals/wscrypto/crypto.hpp>
+++ |+#include
6 |
cc1plus: all warnings being treated as errors
make[3]: *** [tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/build.make:115: tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/websockets_client.cpp.o] Error 1
make[2]: *** [CMakeFiles/Makefile2:263: tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:189: CMakeFiles/demo_echo_client.dir/rule] Error 2
make: *** [Makefile:188: demo_echo_client] Error 2

Thought you should know.

Add support for error codes when closing a connection, according to the rfc:
https://tools.ietf.org/html/rfc6455#section-7.4.1

Add indication for errors such as:

• Socket errors
• Websockets protocol errors