I'd like to write a very simple Haskell script that when given a URL, looks
up the page, and returns a string of HTML. I don't see an HTTP library in
the standard libs, and the one in Hackage requires Windows machines have GHC
and MinGW to be installed and in the PATH.
Is there a simple way to get the contents of a webpage using Haskell on a
Windows box?
This isn't exactly what you want, but it gets you partway there. Not
sure if LineBuffering or NoBuffering is the best option. Line
buffering should be fine for just text output, but if you request a
binary object (like an image) then you have to read exactly the number
of bytes specified, and no more.
Alistair
module Main where
import System.IO
import Network
main = client "www.haskell.org" 80 "/haskellwiki/Haskell"
client server port page = do
h <- connectTo server (PortNumber port)
hSetBuffering h NoBuffering
putStrLn "send request"
hPutStrLn h ("GET " ++ page ++ "\r")
hPutStrLn h "\r"
hPutStrLn h "\r"
putStrLn "wait for response"
readResponse h
putStrLn ""
readResponse h = do
closed <- hIsClosed h
eof <- hIsEOF h
if closed || eof
then return ()
else do
c <- hGetChar h
putChar c
readResponse h
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
