Re: [Haskell-cafe] [ANNOUNCE] First Public Release of the Snap Framework

On Sun, May 23, 2010 at 1:36 AM, Gregory Collins wrote:

Michael Snoyman writes:

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If the POST body has content-type "application/x-www-form-urlencoded"

we

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parse it for you and put the fields in the parameter mapping. If this isn't your case I'd appreciate a bug report. This is a place where we made a different design decision than you did -- a WAI application

which

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expects to parse the POST body itself won't work. I'll think about adding a knob to make this behaviour optional.

I'd appreciate such a knob. Out of curiosity, do you also parse multi-part data?

No, not yet :(, and we'll never do so automatically; we limit POST bodies to 1MB or something like that (to prevent malicious requests from trashing the server) but multipart requests can contain file uploads, which we would probably want to be able to stream to disk somehow.

If you're interested, you can look at the Network.Wai.Parse module in wai-extra. The parseRequestBody function takes an argument of type Sink that specifies how data should be stored. By default, I provide an lbsSink and tempFileSink.

Michael