Re: [Haskell-cafe] Happstack basic question

Neat! I have been wondering how to do that. It is also useful if you want to run multiple happstack applications on the same machine, but each on a different IP address. It would be awesome if this was wrapped up in a more obvious way. I imagine we would extend the Conf type so that you could optionally specify a list of IP addresses to listen on. Unfortunately it is very tricky to implement in a portable way because our code can not depend on ipv6 being enabled. I just posted a message to haskell-cafe asking for suggestions. http://www.haskell.org/pipermail/haskell-cafe/2010-March/074585.html - jeremy On Thu, Mar 11, 2010 at 8:35 AM, Martin Kiefel wrote:

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You misunderstand his question. He's trying to setup happstack behind a reverse proxy running on the same system, so he needs to be able to bind it only to the loopback interface (127.0.0.1), as opposed to all the interfaces on the system (thereby making it inaccessible from the network unless accessed through the proxy). I don't know enough about happstack to answer his question, but I can see from the documentation you provided that

On Thu, Mar 11, 2010 at 09:24:05AM -0500, Kyle Murphy wrote: there

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doesn't seem to be any way to specify address to bind to as Dmitry stated in his original e-mail.

But I'm doing exactly that.

Here is some of the code:

main = do

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s <- socket AF_INET Stream defaultProtocol setSocketOption s ReuseAddr 1 h <- getHostByName "localhost" let p = toEnum $ port $ httpConf appConf bindSocket s (SockAddrInet p (hostAddress h)) listen s 10

-- start the state system control <- startSystemState' (store appConf) stateProxy

-- start the http server httpTid <- forkIO $ simpleHTTPWithSocket s (httpConf appConf)

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And then my happstack server is just listening on 127.0.0.1.

To access it, I'm using Apache Proxy.

- Martin

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-R. Kyle Murphy -- Curiosity was framed, Ignorance killed the cat.

On Thu, Mar 11, 2010 at 07:39, Martin Kiefel wrote:

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Hi Dmitry,

On Thu, Mar 11, 2010 at 11:38:44AM +0300, Dmitry V'yal wrote:

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Hello haskellers,

I want to host a simple happstack application behind a reverse proxy.

So

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ideally would be to bind it to localhost only.

According to

http://hackage.haskell.org/packages/archive/happstack-server/0.4.1/doc/html/...

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Conf datatyle has only Port field. Does it mean, there is currently no way to prevent binding happstack to all available interfaces?

I think you are looking for simpleHTTPWithSocket [1]. You can use whatever socket you like.

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Regards, Dmitry

Cheers, Martin

[1]

http://happstack.com/docs/0.4/happstack-server/Happstack-Server-SimpleHTTP.h...

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