Trying to connect to eventbus using Java library (vertx-eventbusbridge by Saffrontech)

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Oren Shvalb

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Nov 26, 2015, 8:53:39 AM11/26/15
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Hi guys,

I'm trying to using this library, but it breaks in the connect method.

library:

Here is my code:

EventBusBridge.connect(URI.create("https://127.0.0.1:8080/sbg_eventbus"), eb -> {
   System.out.println("Connected");
});


I get the following exception:


Nov 26, 2015 8:39:57 AM io.vertx.core.http.impl.HttpClientImpl
SEVERE: io.netty.handler.codec.http.websocketx.WebSocketHandshakeException: Connection closed while handshake in process
AL lib: (EE) alc_cleanup: 1 device not closed


My server side uses Vertx 3.1.0



Any idea??


Thanks!

Oren Shvalb

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Nov 26, 2015, 10:15:37 AM11/26/15
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After some digging I understood that this library doesn't support SSL connections.

Need to figure out how to make it secured...any ideas?

btw: How come when using javascript eventbus and running from browser - I don't need to deal with special SSL configurations?

Thanks.

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Michel Guillet

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Nov 27, 2015, 4:33:47 AM11/27/15
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Go through a local HTTPS/HTTP proxy ?

vertx-eventbusbridge <-HTTP-> nginx on localhost <-HTTPS-> vert.x

Michel
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Oren Shvalb

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Nov 27, 2015, 7:45:20 AM11/27/15
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I'm not familiar with Nginx, it supposed to translate the HTTP request into SSL HTTPS request? Can it be embedded into Java client application?


Michel Guillet

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Nov 27, 2015, 8:52:19 AM11/27/15
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You want to proxy an HTTP request (from the Saffrontech bridge) to an HTTPS request to Vert.x. Nginx can act as a proxy like most web server. I’m sure you can fine Java equivalent (Jetty, something like that or even Vert.x  :-) ).

Honestly, I saw your PR on the bridge project: you better off waiting for this feature than doing the proxy workaround that add a lot of complexity. But if you can’t wait or help develop this feature: HTTP proxy is your only choice I think.

Michel

Oren Shvalb

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Nov 27, 2015, 9:11:41 AM11/27/15
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Yeah, at this point I work with http as a workaround.

I'm developing the client in Java using libGDX. and I'm starting to get the feeling that I might try using Nashorn Java8 technoology of calling javascript libraries from within Java instead of relying on small 3rd party libraries that don't expose all the required functionality.

I also need Facebook SDK which doesn't exist for Java, so I rely on another small component which also doesn't expose all the necessary functionality.

Do you have any experience with Nashorn (Javascript Engine) ?

Cheers,
Oren

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Michel Guillet

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Nov 27, 2015, 9:26:42 AM11/27/15
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Do you have any experience with Nashorn (Javascript Engine) ?
Nope, I try to stay away from dynamic languages as much as I can (<- obvious trolling)

I also need Facebook SDK which doesn't exist for Java, so I rely on another small component which also doesn't expose all the necessary functionality.
In case you’ re looking for Facebook auth, I think pac4j knows how to do this.

Cheers,

Michel

Oren Shvalb

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Nov 27, 2015, 9:51:57 AM11/27/15
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Yeah, pac4j looks great!

It even has vertx-pac4j :-)

Thanks!



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