Safe Haskell | None |
---|
- data ProxyDest = ProxyDest {
- pdHost :: !ByteString
- pdPort :: !Int
- rawProxyTo :: (MonadBaseControl IO m, MonadIO m) => (RequestHeaders -> m (Either (Application m) ProxyDest)) -> Application m
- waiProxyTo :: (Request -> ResourceT IO (Either Response ProxyDest)) -> (SomeException -> Application) -> Manager -> Application
- defaultOnExc :: SomeException -> Application
- waiProxyToSettings :: (Request -> ResourceT IO (Either Response ProxyDest)) -> WaiProxySettings -> Manager -> Request -> ResourceT IO Response
- data WaiProxySettings
- def :: Default a => a
- wpsOnExc :: WaiProxySettings -> SomeException -> Application
- wpsTimeout :: WaiProxySettings -> Maybe Int
- waiToRaw :: Application -> Application IO
Types
Host/port combination to which we want to proxy.
ProxyDest | |
|
Raw
:: (MonadBaseControl IO m, MonadIO m) | |
=> (RequestHeaders -> m (Either (Application m) ProxyDest)) | How to reverse proxy. A |
-> Application m |
Set up a reverse proxy server, which will have a minimal overhead.
This function uses raw sockets, parsing as little of the request as possible. The workflow is:
- Parse the first request headers.
- Ask the supplied function to specify how to reverse proxy.
- Open up a connection to the given host/port.
- Pass all bytes across the wire unchanged.
If you need more control, such as modifying the request or response, use waiProxyTo
.
WAI + http-conduit
:: (Request -> ResourceT IO (Either Response ProxyDest)) | How to reverse proxy. A |
-> (SomeException -> Application) | How to handle exceptions when calling remote server. For a
simple 502 error page, use |
-> Manager | connection manager to utilize |
-> Application |
Creates a WAI Application
which will handle reverse proxies.
Connections to the proxied server will be provided via http-conduit. As
such, all requests and responses will be fully processed in your reverse
proxy. This allows you much more control over the data sent over the wire,
but also incurs overhead. For a lower-overhead approach, consider
rawProxyTo
.
Most likely, the given application should be run with Warp, though in theory other WAI handlers will work as well.
Note: This function will use chunked request bodies for communicating with the proxied server. Not all servers necessarily support chunked request bodies, so please confirm that yours does (Warp, Snap, and Happstack, for example, do).
defaultOnExc :: SomeException -> ApplicationSource
Sends a simple 502 bad gateway error message with the contents of the exception.
waiProxyToSettings :: (Request -> ResourceT IO (Either Response ProxyDest)) -> WaiProxySettings -> Manager -> Request -> ResourceT IO ResponseSource
Settings
WAI to Raw
waiToRaw :: Application -> Application IOSource
Convert a WAI application into a raw application, using Warp.