Special characters in query

[AltState]

Hello,

I have an issue related to query parameter.

I want to send an auth token to my server through a query parameter but it is sanitized by the client before it is send.
Sometimes, the token contains special caracters like "+" and necessarily end by "=".
When these characters are cleaned by the client, my server refuse the connection because the token stored in db is not strictly equal to the other one.

I can manage the "=" because it is necessarily at the end but I'm stuck with the others.
Does anyone got an idea to resolve my issue ?

Thanks !

[darrachequesne]

Hi!

For a 1.x client, you should be able to use the decodeURIComponent method on the server side.

io.on("connection", (socket) => {
  const token = decodeURIComponent(socket.handshake.query.token);
  // ...
});

For a 2.x client, you can use the auth option, which should cover your use case:

IO.Options options = IO.Options.builder()
        .setAuth(singletonMap("token", "abcd+++==="))
        .build();

Socket socket = IO.socket(URI.create("https://example.com"), options);

Documented here: https://socketio.github.io/socket.io-client-java/initialization.html#auth

[AltState]

Salut,

j'ai testé ta 2ème solution et elle marche niquel merci beaucoup!

[weston313]

My url param 'ticket' with '=' at the end. When i send it to server, the character '=' is sanitized and connect fail. I cannot upgrade code on server. How to fix it on client code.
PS(Version: 1.0.1)

[weston313]

Solved. I encode param ticket by java.net.URLEncode() before initlize query string.

String queryStr = new StringBuffer()
.append("ticket=").append(URLEncoder.encode(ticked.trim(), "UTF-8"))
.append("&").append("ticketId=").append(ticketId.trim())
.toString();