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| author | Loïc Hoguin <[email protected]> | 2016-08-29 12:39:49 +0200 |
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| committer | Loïc Hoguin <[email protected]> | 2016-08-29 12:40:03 +0200 |
| commit | c807880f7ac73f813b2660ea81a00f7712a4e793 (patch) | |
| tree | ba1d09e9b177f230665a80513b33fbd532000ce4 /archives/extend/2015-January/000485.html | |
| parent | b1df25a7d9cda697513650659b781b55b40898f8 (diff) | |
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diff --git a/archives/extend/2015-January/000485.html b/archives/extend/2015-January/000485.html new file mode 100644 index 00000000..03cccb2d --- /dev/null +++ b/archives/extend/2015-January/000485.html @@ -0,0 +1,136 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<HTML> + <HEAD> + <TITLE> [99s-extend] websocket over ssl + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20websocket%20over%20ssl&In-Reply-To=%3C54B13550.5050504%40ninenines.eu%3E"> + <META NAME="robots" CONTENT="index,nofollow"> + <style type="text/css"> + pre { + white-space: pre-wrap; /* css-2.1, curent FF, Opera, Safari */ + } + </style> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000484.html"> + <LINK REL="Next" HREF="000486.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[99s-extend] websocket over ssl</H1> + <B>Loïc Hoguin</B> + <A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20websocket%20over%20ssl&In-Reply-To=%3C54B13550.5050504%40ninenines.eu%3E" + TITLE="[99s-extend] websocket over ssl">essen at ninenines.eu + </A><BR> + <I>Sat Jan 10 15:21:04 CET 2015</I> + <P><UL> + <LI>Previous message: <A HREF="000484.html">[99s-extend] websocket over ssl +</A></li> + <LI>Next message: <A HREF="000486.html">[99s-extend] websocket over ssl +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#485">[ date ]</a> + <a href="thread.html#485">[ thread ]</a> + <a href="subject.html#485">[ subject ]</a> + <a href="author.html#485">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Assuming you have no problem understanding HTTPS, the only differences +between plain Websocket and HTTPS Websocket are as follow: + +In your browser, your <A HREF="ws://">ws://</A> links become <A HREF="wss://">wss://</A> links. + +In Cowboy, use start_https instead of start_http. There is no change +required in your code otherwise. + +It may or may not be possible to use <A HREF="wss://">wss://</A> from an HTTP page or <A HREF="ws://">ws://</A> +from an HTTPS page, I'm not too up to date on that one. Otherwise, <A HREF="ws://">ws://</A> +from HTTP page or <A HREF="wss://">wss://</A> from HTTPS page works as intended. + +There is no requirement that a Websocket connection is initiated on a +new TCP connection. I am not sure if browsers reuse connections or not. + +On 01/10/2015 02:55 PM, <A HREF="https://lists.ninenines.eu/listinfo/extend">e at bestmx.net</A> wrote: +><i> Hello all. +</I>><i> +</I>><i> I am trying to alter my cowboy-based websocket server from plain to SSL +</I>><i> connection. +</I>><i> And I found out that I have failed to understand very basics of the +</I>><i> combination of WS and SSL. +</I>><i> +</I>><i> As far as i've understood the very nature of the WS it is a bit altered +</I>><i> http connection (i open the http connection first, and then i change its +</I>><i> status to WS) +</I>><i> +</I>><i> On the other hand the whole "HTTP story" could be wrapped into SSL, so +</I>><i> that SSL is an outer layer of data encoding (as seen transparent by an +</I>><i> application) +</I>><i> +</I>><i> thus, +</I>><i> if I open HTTPS connection (which implies SSL enveloping) and then alter +</I>><i> the connection status to WS, the whole "WS story" appears naturally +</I>><i> INSIDE THE PREVIOUSLY ESTABLISHED SSL CONNECTION. +</I>><i> +</I>><i> Is it true? +</I>><i> +</I>><i> In this regard i can hardly find a place in this world for the "WSS" +</I>><i> term, what does it stand for? +</I>><i> +</I>><i> Please, help me fit it in my head. +</I>><i> +</I>><i> However, i might be confusing some Client-Side entities, that are +</I>><i> involved in the process of starting up my WebSocket. +</I>><i> +</I>><i> I am using a Browser with JavaScript. +</I>><i> +</I>><i> The semantics of the very WebSocket.start() operation is not enough +</I>><i> clear to me. Please, do not laugh. +</I>><i> +</I>><i> when i do JS WebSocket.start() does it: +</I>><i> (a) opens an http connection and then alters it to WS +</I>><i> (b) alters the connection in the context of which the JS process is running +</I>><i> ???? +</I>><i> +</I>><i> I'll be damned if the answer was lying on the surface of the internet! +</I>><i> +</I>><i> The third part of this ugly question is about cowboy actually. +</I>><i> How all these entities mentioned above do map into my_app.erl file? +</I>><i> what particular bits of cowboy's "configuration" (may i call this +</I>><i> particular piece of code a "setup" or "config"?) affect what aspects of +</I>><i> the connection initialization. +</I>><i> +</I>><i> well, i am afraid it could be put in a simpler way: +</I>><i> "Exactly When and Where the WSS story begins?" +</I>><i> +</I>><i> _______________________________________________ +</I>><i> Extend mailing list +</I>><i> <A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A> +</I>><i> <A HREF="https://lists.ninenines.eu/listinfo/extend">https://lists.ninenines.eu/listinfo/extend</A> +</I> +-- +Loïc Hoguin +<A HREF="http://ninenines.eu">http://ninenines.eu</A> +</PRE> + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000484.html">[99s-extend] websocket over ssl +</A></li> + <LI>Next message: <A HREF="000486.html">[99s-extend] websocket over ssl +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#485">[ date ]</a> + <a href="thread.html#485">[ thread ]</a> + <a href="subject.html#485">[ subject ]</a> + <a href="author.html#485">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="https://lists.ninenines.eu/listinfo/extend">More information about the Extend +mailing list</a><br> +</body></html> |