packages feed

network-protocol-xmpp 0.4 → 0.4.1

raw patch · 27 files changed

+2183/−2174 lines, 27 filesdep ~basePVP ok

version bump matches the API change (PVP)

Dependency ranges changed: base

API changes (from Hackage documentation)

Files

− License.txt 
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Of course, your program's commands-might be different; for a GUI interface, you would use an "about box".--  You should also get your employer (if you work as a programmer) or school,-if any, to sign a "copyright disclaimer" for the program, if necessary.-For more information on this, and how to apply and follow the GNU GPL, see-<http://www.gnu.org/licenses/>.--  The GNU General Public License does not permit incorporating your program-into proprietary programs.  If your program is a subroutine library, you-may consider it more useful to permit linking proprietary applications with-the library.  If this is what you want to do, use the GNU Lesser General-Public License instead of this License.  But first, please read-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
− Network/Protocol/XMPP.hs 
@@ -1,73 +0,0 @@--- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP-	( -	-- * JIDs-	  JID (..)-	, Node-	, Domain-	, Resource-	-	, strNode-	, strDomain-	, strResource-	-	, parseJID-	, formatJID-	-	-- * Stanzas-	, Stanza-		( stanzaTo-		, stanzaFrom-		, stanzaID-		, stanzaLang-		, stanzaPayloads-		)-	-	, ReceivedStanza (..)-	, Message (..)-	, Presence (..)-	, IQ (..)-	, MessageType (..)-	, PresenceType (..)-	, IQType (..)-	-	, emptyMessage-	, emptyPresence-	, emptyIQ-	-	-- * The XMPP monad-	, XMPP-	, Server (..)-	, Error (..)-	, runClient-	, runComponent-	, putStanza-	, getStanza-	, bindJID-	-	-- ** Resuming sessions-	, Session-	, getSession-	, runXMPP-	) where--import           Network.Protocol.XMPP.Client-import           Network.Protocol.XMPP.Component-import           Network.Protocol.XMPP.Connections-import           Network.Protocol.XMPP.JID-import           Network.Protocol.XMPP.Monad-import           Network.Protocol.XMPP.Stanza
− Network/Protocol/XMPP/Client.hs 
@@ -1,147 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Client-	( runClient-	, bindJID-	) where--import           Control.Monad ((>=>))-import           Control.Monad.Error (throwError)-import           Control.Monad.Trans (liftIO)-import           Data.ByteString (ByteString)-import           Data.Text (Text)-import           Network (connectTo)-import qualified System.IO as IO--import qualified Network.Protocol.XMPP.Client.Authentication as A-import qualified Network.Protocol.XMPP.Connections as C-import qualified Network.Protocol.XMPP.Client.Features as F-import qualified Network.Protocol.XMPP.Handle as H-import qualified Network.Protocol.XMPP.JID as J-import qualified Network.Protocol.XMPP.Monad as M-import qualified Network.Protocol.XMPP.XML as X-import           Network.Protocol.XMPP.ErrorT-import           Network.Protocol.XMPP.Stanza--runClient :: C.Server-          -> J.JID -- ^ Client JID-          -> Text -- ^ Username-          -> Text -- ^ Password-          -> M.XMPP a-          -> IO (Either M.Error a)-runClient server jid username password xmpp = do-	-- Open a TCP connection-	let C.Server sjid host port = server-	rawHandle <- connectTo host port-	IO.hSetBuffering rawHandle IO.NoBuffering-	let handle = H.PlainHandle rawHandle-	-	-- Open the initial stream and authenticate-	M.startXMPP handle "jabber:client" $ do-		features <- newStream sjid-		tryTLS sjid features $ \tlsFeatures -> do-			let mechanisms = authenticationMechanisms tlsFeatures-			A.authenticate mechanisms jid sjid username password-			M.restartXMPP Nothing (newStream sjid >> xmpp)--newStream :: J.JID -> M.XMPP [F.Feature]-newStream jid = do-	M.putBytes (C.xmlHeader "jabber:client" jid)-	void (M.readEvents C.startOfStream)-	F.parseFeatures `fmap` M.getElement--tryTLS :: J.JID -> [F.Feature] -> ([F.Feature] -> M.XMPP a) -> M.XMPP a-tryTLS sjid features m-	| not (streamSupportsTLS features) = m features-	| otherwise = do-		M.putElement xmlStartTLS-		void M.getElement-		h <- M.getHandle-		eitherTLS <- liftIO (runErrorT (H.startTLS h))-		case eitherTLS of-			Left err -> throwError (M.TransportError err)-			Right tls -> M.restartXMPP (Just tls) (newStream sjid >>= m)--authenticationMechanisms :: [F.Feature] -> [ByteString]-authenticationMechanisms = step where-	step [] = []-	step (f:fs) = case f of-		(F.FeatureSASL ms) -> ms-		_ -> step fs---- | Send a @\<bind\>@ message for the given 'J.JID', returning the server's reply. In--- most cases the reply will be the same as the input. However, if the input has no--- 'J.Resource', the returned 'J.JID' will contain a generated 'J.Resource'.--- --- Clients must bind a 'J.JID' before sending any 'Stanza's.-bindJID :: J.JID -> M.XMPP J.JID-bindJID jid = do-	-- Bind-	M.putStanza (bindStanza (J.jidResource jid))-	bindResult <- M.getStanza-	let getJID =-		X.elementChildren-		>=> X.isNamed "{urn:ietf:params:xml:ns:xmpp-bind}jid"-		>=> X.elementNodes-		>=> X.isContent-		>=> return . X.contentText-	-	let maybeJID = do-		iq <- case bindResult of-			ReceivedIQ x -> Just x-			_ -> Nothing-		payload <- iqPayload iq-		-		case getJID payload of-			[] -> Nothing-			(str:_) -> J.parseJID str-	-	returnedJID <- case maybeJID of-		Just x -> return x-		Nothing -> throwError (M.InvalidBindResult bindResult)-	-	-- Session-	M.putStanza sessionStanza-	void M.getStanza-	-	M.putStanza (emptyPresence PresenceAvailable)-	void M.getStanza-	-	return returnedJID--bindStanza :: Maybe J.Resource -> IQ-bindStanza resource = (emptyIQ IQSet) { iqPayload = Just payload } where-	payload = X.element "{urn:ietf:params:xml:ns:xmpp-bind}bind" [] requested-	requested = case fmap J.strResource resource of-		Nothing -> []-		Just x -> [X.NodeElement (X.element "resource" [] [X.NodeContent (X.ContentText x)])]--sessionStanza :: IQ-sessionStanza = (emptyIQ IQSet) { iqPayload = Just payload } where-	payload = X.element "{urn:ietf:params:xml:ns:xmpp-session}session" [] []--streamSupportsTLS :: [F.Feature] -> Bool-streamSupportsTLS = any isStartTLS where-	isStartTLS (F.FeatureStartTLS _) = True-	isStartTLS _                     = False--xmlStartTLS :: X.Element-xmlStartTLS = X.element "{urn:ietf:params:xml:ns:xmpp-tls}starttls" [] []--void :: Monad m => m a -> m ()-void m = m >> return ()
− Network/Protocol/XMPP/Client/Authentication.hs 
@@ -1,135 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}-{-# LANGUAGE DeriveDataTypeable #-}---- Copyright (C) 2009-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Client.Authentication-	( Result (..)-	, authenticate-	) where--import qualified Control.Exception as Exc-import           Control.Monad (when, (>=>))-import           Control.Monad.IO.Class (MonadIO, liftIO)-import qualified Control.Monad.Error as E-import           Data.ByteString (ByteString)-import qualified Data.ByteString.Char8-import qualified Data.Text-import           Data.Text (Text)-import           Data.Text.Encoding (encodeUtf8)-import           Data.Typeable (Typeable)-import qualified Network.Protocol.SASL.GNU as SASL--import qualified Network.Protocol.XMPP.Monad as M-import qualified Network.Protocol.XMPP.XML as X-import           Network.Protocol.XMPP.JID (JID, formatJID, jidResource)--data Result = Success | Failure-	deriving (Show, Eq)--data AuthException = XmppError M.Error | SaslError Text-	deriving (Typeable, Show)--instance Exc.Exception AuthException--authenticate :: [ByteString] -- ^ Mechanisms-             -> JID -- ^ User JID-             -> JID -- ^ Server JID-             -> Text -- ^ Username-             -> Text -- ^ Password-             -> M.XMPP ()-authenticate xmppMechanisms userJID serverJID username password = xmpp where-	mechanisms = map SASL.Mechanism xmppMechanisms-	authz = formatJID (userJID { jidResource = Nothing })-	hostname = formatJID serverJID-	-	xmpp = do-		ctx <- M.getSession-		res <- liftIO . Exc.try . SASL.runSASL $ do-			suggested <- SASL.clientSuggestMechanism mechanisms-			case suggested of-				Nothing -> saslError "No supported authentication mechanism"-				Just mechanism -> authSasl ctx mechanism-		case res of-			Right Success -> return ()-			Right Failure -> E.throwError M.AuthenticationFailure-			Left (XmppError err) -> E.throwError err-			Left (SaslError err) -> E.throwError (M.AuthenticationError err)-	-	authSasl ctx mechanism = do-		let (SASL.Mechanism mechBytes) = mechanism-		sessionResult <- SASL.runClient mechanism $ do-			SASL.setProperty SASL.PropertyAuthzID (encodeUtf8 authz)-			SASL.setProperty SASL.PropertyAuthID (encodeUtf8 username)-			SASL.setProperty SASL.PropertyPassword (encodeUtf8 password)-			SASL.setProperty SASL.PropertyService "xmpp"-			SASL.setProperty SASL.PropertyHostname (encodeUtf8 hostname)-			-			(b64text, rc) <- SASL.step64 ""-			putElement ctx $ X.element "{urn:ietf:params:xml:ns:xmpp-sasl}auth"-				[("mechanism", Data.Text.pack (Data.ByteString.Char8.unpack mechBytes))]-				[X.NodeContent (X.ContentText (Data.Text.pack (Data.ByteString.Char8.unpack b64text)))]-			-			case rc of-				SASL.Complete -> saslFinish ctx-				SASL.NeedsMore -> saslLoop ctx-			-		case sessionResult of-			Right x -> return x-			Left err -> saslError (Data.Text.pack (show err))--saslLoop :: M.Session -> SASL.Session Result-saslLoop ctx = do-	elemt <- getElement ctx-	let name = "{urn:ietf:params:xml:ns:xmpp-sasl}challenge"-	let getChallengeText =-		X.isNamed name-		>=> X.elementNodes-		>=> X.isContent-		>=> return . X.contentText-	let challengeText = getChallengeText elemt-	when (null challengeText) (saslError "Received empty challenge")-	-	(b64text, rc) <- SASL.step64 (Data.ByteString.Char8.pack (concatMap Data.Text.unpack challengeText))-	putElement ctx $ X.element "{urn:ietf:params:xml:ns:xmpp-sasl}response"-		[] [X.NodeContent (X.ContentText (Data.Text.pack (Data.ByteString.Char8.unpack b64text)))]-	case rc of-		SASL.Complete -> saslFinish ctx-		SASL.NeedsMore -> saslLoop ctx--saslFinish :: M.Session -> SASL.Session Result-saslFinish ctx = do-	elemt <- getElement ctx-	let name = "{urn:ietf:params:xml:ns:xmpp-sasl}success"-	let success = X.isNamed name elemt-	return (if null success then Failure else Success)--putElement :: M.Session -> X.Element -> SASL.Session ()-putElement ctx elemt = liftIO $ do-	res <- M.runXMPP ctx (M.putElement elemt)-	case res of-		Left err -> Exc.throwIO (XmppError err)-		Right x -> return x--getElement :: M.Session -> SASL.Session X.Element-getElement ctx = liftIO $ do-	res <- M.runXMPP ctx M.getElement-	case res of-		Left err -> Exc.throwIO (XmppError err)-		Right x -> return x--saslError :: MonadIO m => Text -> m a-saslError = liftIO . Exc.throwIO . SaslError
− Network/Protocol/XMPP/Client/Features.hs 
@@ -1,71 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Client.Features-	( Feature (..)-	, parseFeatures-	, parseFeature-	) where--import           Control.Arrow ((&&&))-import qualified Data.ByteString.Char8-import           Data.ByteString (ByteString)-import qualified Data.Text-import qualified Network.Protocol.XMPP.XML as X--data Feature =-	  FeatureStartTLS Bool-	| FeatureSASL [ByteString]-	| FeatureRegister-	| FeatureBind-	| FeatureSession-	| FeatureUnknown X.Element-	deriving (Show, Eq)--parseFeatures :: X.Element -> [Feature]-parseFeatures e =-	X.isNamed nameFeatures e-	>>= X.elementChildren-	>>= return . parseFeature--parseFeature :: X.Element -> Feature-parseFeature elemt = feature where-	unpackName = (maybe "" id . X.nameNamespace) &&& X.nameLocalName-	feature = case unpackName (X.elementName elemt) of-		("urn:ietf:params:xml:ns:xmpp-tls", "starttls") -> parseFeatureTLS elemt-		("urn:ietf:params:xml:ns:xmpp-sasl", "mechanisms") -> parseFeatureSASL elemt-		("http://jabber.org/features/iq-register", "register") -> FeatureRegister-		("urn:ietf:params:xml:ns:xmpp-bind", "bind") -> FeatureBind-		("urn:ietf:params:xml:ns:xmpp-session", "session") -> FeatureSession-		_ -> FeatureUnknown elemt--parseFeatureTLS :: X.Element -> Feature-parseFeatureTLS _ = FeatureStartTLS True -- TODO: detect whether or not required--parseFeatureSASL :: X.Element -> Feature-parseFeatureSASL e = FeatureSASL $-	X.elementChildren e-	>>= X.isNamed nameMechanism-	>>= X.elementNodes-	>>= X.isContent-	>>= return . Data.ByteString.Char8.pack . Data.Text.unpack . X.contentText--nameMechanism :: X.Name-nameMechanism = "{urn:ietf:params:xml:ns:xmpp-sasl}mechanism"--nameFeatures :: X.Name-nameFeatures = "{http://etherx.jabber.org/streams}features"
− Network/Protocol/XMPP/Component.hs 
@@ -1,85 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010 Stephan Maka <stephan@spaceboyz.net>--- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Component-	( runComponent-	) where--import           Control.Monad (when)-import           Control.Monad.Error (throwError)-import           Data.Bits (shiftR, (.&.))-import           Data.Char (intToDigit)-import qualified Data.ByteString-import           Data.ByteString (ByteString)-import qualified Data.Text-import           Data.Text (Text)-import           Data.Text.Encoding (encodeUtf8)-import           Network (connectTo)-import           Network.Protocol.SASL.GNU (sha1)-import qualified System.IO as IO--import qualified Network.Protocol.XMPP.Connections as C-import qualified Network.Protocol.XMPP.Handle as H-import qualified Network.Protocol.XMPP.Monad as M-import qualified Network.Protocol.XMPP.XML as X-import           Network.Protocol.XMPP.JID (JID)--runComponent :: C.Server-             -> Text -- ^ Server secret-             -> M.XMPP a-             -> IO (Either M.Error a)-runComponent server password xmpp = do-	let C.Server jid host port = server-	rawHandle <- connectTo host port-	IO.hSetBuffering rawHandle IO.NoBuffering-	let handle = H.PlainHandle rawHandle-	M.startXMPP handle "jabber:component:accept" $ do-		streamID <- beginStream jid-		authenticate streamID password-		xmpp--beginStream :: JID -> M.XMPP Text-beginStream jid = do-	M.putBytes $ C.xmlHeader "jabber:component:accept" jid-	events <- M.readEvents C.startOfStream-	case parseStreamID $ last events of-		Nothing -> throwError M.NoComponentStreamID-		Just x -> return x--parseStreamID :: X.Event -> Maybe Text-parseStreamID (X.EventBeginElement name attrs) = X.attributeText-	"{jabber:component:accept}jid"-	(X.Element name attrs [])-parseStreamID _ = Nothing--authenticate :: Text -> Text -> M.XMPP ()-authenticate streamID password = do-	let bytes = buildSecret streamID password-	let digest = showDigest (sha1 bytes)-	M.putElement (X.element "handshake" [] [X.NodeContent (X.ContentText digest)])-	result <- M.getElement-	let nameHandshake = "{jabber:component:accept}handshake"-	when (null (X.isNamed nameHandshake result)) (throwError M.AuthenticationFailure)--buildSecret :: Text -> Text -> ByteString-buildSecret sid password = encodeUtf8 (X.escape (Data.Text.append sid password))--showDigest :: ByteString -> Text-showDigest = Data.Text.pack . concatMap wordToHex . Data.ByteString.unpack where-	wordToHex x = [hexDig (shiftR x 4), hexDig (x .&. 0xF)]-	hexDig = intToDigit . fromIntegral
− Network/Protocol/XMPP/Connections.hs 
@@ -1,60 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Connections-	( Server (..)-	, xmlHeader-	, startOfStream-	, qnameStream-	) where--import           Network (HostName, PortID)-import           Data.ByteString (ByteString)-import qualified Data.Text-import           Data.Text (Text)-import           Data.Text.Encoding (encodeUtf8)--import qualified Network.Protocol.XMPP.XML as X-import           Network.Protocol.XMPP.JID (JID, formatJID)--data Server = Server-	{ serverJID      :: JID-	, serverHostname :: HostName-	, serverPort     :: PortID-	}---- Since only the opening tag should be written, normal XML--- serialization cannot be used. Be careful to escape any embedded--- attributes.-xmlHeader :: Text -> JID -> ByteString-xmlHeader ns jid = encodeUtf8 header where-	attr x = Data.Text.concat ["\"", X.escape x, "\""]-	header = Data.Text.concat-		[ "<?xml version='1.0'?>\n"-		, "<stream:stream xmlns=" , attr ns-		, " to=", attr (formatJID jid)-		, " version=\"1.0\""-		, " xmlns:stream=\"http://etherx.jabber.org/streams\">"-		]--startOfStream :: Integer -> X.Event -> Bool-startOfStream depth event = case (depth, event) of-	(1, (X.EventBeginElement elemName _)) -> qnameStream == elemName-	_ -> False--qnameStream :: X.Name-qnameStream = "{http://etherx.jabber.org/streams}stream"
− Network/Protocol/XMPP/ErrorT.hs 
@@ -1,73 +0,0 @@-{-# LANGUAGE TypeFamilies #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.ErrorT-	( ErrorT (..)-	, mapErrorT-	) where--import           Control.Monad (liftM)-import           Control.Monad.Fix (MonadFix, mfix)-import           Control.Monad.Trans (MonadIO, liftIO)-import           Control.Monad.Trans.Class (MonadTrans, lift)-import qualified Control.Monad.Error as E-import qualified Control.Monad.Reader as R---- A custom version of ErrorT, without the 'Error' class restriction.--newtype ErrorT e m a = ErrorT { runErrorT :: m (Either e a) }--instance Functor m => Functor (ErrorT e m) where-	fmap f = ErrorT . fmap (fmap f) . runErrorT--instance Monad m => Monad (ErrorT e m) where-	return = ErrorT . return . Right-	(>>=) m k = ErrorT $ do-		x <- runErrorT m-		case x of-			Left l -> return (Left l)-			Right r -> runErrorT (k r)--instance Monad m => E.MonadError (ErrorT e m) where-	type E.ErrorType (ErrorT e m) = e-	throwError = ErrorT . return . Left-	catchError m h = ErrorT $ do-		x <- runErrorT m-		case x of-			Left l -> runErrorT (h l)-			Right r -> return (Right r)--instance MonadTrans (ErrorT e) where-	lift = ErrorT . liftM Right--instance R.MonadReader m => R.MonadReader (ErrorT e m) where-	type R.EnvType (ErrorT e m) = R.EnvType m-	ask = lift R.ask-	local = mapErrorT . R.local--instance MonadIO m => MonadIO (ErrorT e m) where-	liftIO = lift . liftIO--instance MonadFix m => MonadFix (ErrorT e m) where-	mfix f = ErrorT $ mfix $ \ex -> runErrorT $ f $ case ex of-		Right x -> x-		_        -> error "empty mfix parameter"--mapErrorT :: (m (Either e a) -> n (Either e' b))-           -> ErrorT e m a-           -> ErrorT e' n b-mapErrorT f m = ErrorT (f (runErrorT m))
− Network/Protocol/XMPP/Handle.hs 
@@ -1,71 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Handle-	( Handle (..)-	, startTLS-	, hPutBytes-	, hGetBytes-	) where--import           Control.Monad (when)-import qualified Control.Monad.Error as E-import           Control.Monad.Trans (liftIO)-import qualified Data.ByteString-import           Data.ByteString (ByteString)-import qualified Data.ByteString.Lazy-import qualified Data.Text-import           Data.Text (Text)-import qualified System.IO as IO-import qualified Network.Protocol.TLS.GNU as TLS-import           Network.Protocol.XMPP.ErrorT--data Handle =-	  PlainHandle IO.Handle-	| SecureHandle IO.Handle TLS.Session--liftTLS :: TLS.Session -> TLS.TLS a -> ErrorT Text IO a-liftTLS s = liftTLS' . TLS.runTLS s--liftTLS' :: IO (Either TLS.Error a) -> ErrorT Text IO a-liftTLS' io = do-	eitherX <- liftIO io-	case eitherX of-		Left err -> E.throwError (Data.Text.pack (show err))-		Right x -> return x--startTLS :: Handle -> ErrorT Text IO Handle-startTLS (SecureHandle _ _) = E.throwError "Can't start TLS on a secure handle"-startTLS (PlainHandle h) = liftTLS' $ TLS.runClient (TLS.handleTransport h) $ do-	TLS.setPriority [TLS.X509]-	TLS.setCredentials =<< TLS.certificateCredentials-	TLS.handshake-	SecureHandle h `fmap` TLS.getSession--hPutBytes :: Handle -> ByteString -> ErrorT Text IO ()-hPutBytes (PlainHandle h)  = liftIO . Data.ByteString.hPut h-hPutBytes (SecureHandle _ s) = liftTLS s . TLS.putBytes . toLazy where-	toLazy bytes = Data.ByteString.Lazy.fromChunks [bytes]--hGetBytes :: Handle -> Integer -> ErrorT Text IO ByteString-hGetBytes (PlainHandle h) n = liftIO (Data.ByteString.hGet h (fromInteger n))-hGetBytes (SecureHandle h s) n = liftTLS s $ do-	pending <- TLS.checkPending-	let wait = IO.hWaitForInput h (- 1) >> return ()-	when (pending == 0) (liftIO wait)-	lazy <- TLS.getBytes n-	return (Data.ByteString.concat (Data.ByteString.Lazy.toChunks lazy))
− Network/Protocol/XMPP/JID.hs 
@@ -1,120 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}-{-# LANGUAGE CPP #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.JID-	( JID (..)-	, Node (..)-	, Domain (..)-	, Resource (..)-	-	, parseJID-	, parseJID_-	, formatJID-	) where--import qualified Data.Text-import           Data.Text (Text)-import qualified Data.Text.IDN.StringPrep as SP-import           Data.String (IsString, fromString)--newtype Node = Node { strNode :: Text }-newtype Domain = Domain { strDomain :: Text }-newtype Resource = Resource { strResource :: Text }--instance Show Node where-	showsPrec d (Node x) = showParen (d > 10) $-		showString "Node " . shows x--instance Show Domain where-	showsPrec d (Domain x) = showParen (d > 10) $-		showString "Domain " . shows x--instance Show Resource where-	showsPrec d (Resource x) = showParen (d > 10) $-		showString "Resource " . shows x--instance Eq Node where-	(==) = equaling strNode--instance Eq Domain where-	(==) = equaling strDomain--instance Eq Resource where-	(==) = equaling strResource--data JID = JID-	{ jidNode :: Maybe Node-	, jidDomain :: Domain-	, jidResource :: Maybe Resource-	}-	deriving (Eq)--instance Show JID where-	showsPrec d jid =  showParen (d > 10) $-		showString "JID " . shows (formatJID jid)--instance IsString JID where-	fromString = parseJID_ . fromString--parseJID :: Text -> Maybe JID-parseJID str = maybeJID where-	(node, postNode) = case textSpanBy (/= '@') str of-		(x, y) -> if Data.Text.null y-			then ("", x)-			else (x, Data.Text.drop 1 y)-	(domain, resource) = case textSpanBy (/= '/') postNode of-		(x, y) -> if Data.Text.null y-			then (x, "")-			else (x, Data.Text.drop 1 y)-	nullable x f = if Data.Text.null x-		then Just Nothing-		else fmap Just (f x)-	maybeJID = do-		preppedNode <- nullable node (stringprepM SP.xmppNode)-		preppedDomain <- stringprepM SP.nameprep domain-		preppedResource <- nullable resource (stringprepM SP.xmppResource)-		return $ JID-			(fmap Node preppedNode)-			(Domain preppedDomain)-			(fmap Resource preppedResource)-	stringprepM p x = case SP.stringprep p SP.defaultFlags x of-		Left _ -> Nothing-		Right y -> Just y--parseJID_ :: Text -> JID-parseJID_ text = case parseJID text of-	Just jid -> jid-	Nothing -> error "Malformed JID"--formatJID :: JID -> Text-formatJID (JID node (Domain domain) resource) = formatted where-	formatted = Data.Text.concat [node', domain, resource']-	node' = maybe "" (\(Node x) -> Data.Text.append x "@") node-	resource' = maybe "" (\(Resource x) -> Data.Text.append "/" x) resource---- Similar to 'comparing'-equaling :: Eq a => (b -> a) -> b -> b -> Bool-equaling f x y = f x == f y---- multi-version 'text' compatibility-textSpanBy :: (Char -> Bool) -> Text -> (Text, Text)-#if MIN_VERSION_text(0,11,0)-textSpanBy = Data.Text.span-#else-textSpanBy = Data.Text.spanBy-#endif
− Network/Protocol/XMPP/Monad.hs 
@@ -1,191 +0,0 @@-{-# LANGUAGE TypeFamilies #-}-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Monad-	( XMPP (..)-	, Error (..)-	, Session (..)-	, runXMPP-	, startXMPP-	, restartXMPP-	-	, getHandle-	, getSession-	-	, readEvents-	, getElement-	, getStanza-	-	, putBytes-	, putElement-	, putStanza-	) where--import qualified Control.Applicative as A-import qualified Control.Concurrent.MVar as M-import           Control.Monad (ap)-import           Control.Monad.Fix (MonadFix, mfix)-import           Control.Monad.Trans (MonadIO, liftIO)-import qualified Control.Monad.Error as E-import qualified Control.Monad.Reader as R-import qualified Data.ByteString-import           Data.ByteString (ByteString)-import           Data.Text (Text)-import           Data.Text.Encoding (encodeUtf8)--import           Network.Protocol.XMPP.ErrorT-import qualified Network.Protocol.XMPP.Handle as H-import qualified Network.Protocol.XMPP.Stanza as S-import qualified Network.Protocol.XMPP.XML as X--data Error-	-- | The remote host refused the specified authentication credentials.-	= AuthenticationFailure-	-	-- | There was an error while authenticating with the remote host.-	| AuthenticationError Text-	-	-- | An unrecognized or malformed 'S.Stanza' was received from the remote-	-- host.-	| InvalidStanza X.Element-	-	-- | The remote host sent an invalid reply to a resource bind request.-	| InvalidBindResult S.ReceivedStanza-	-	-- | There was an error with the underlying transport.-	| TransportError Text-	-	-- | The remote host did not send a stream ID when accepting a component-	-- connection.-	| NoComponentStreamID-	deriving (Show)--data Session = Session-	{ sessionHandle :: H.Handle-	, sessionNamespace :: Text-	, sessionParser :: X.Parser-	, sessionReadLock :: M.MVar ()-	, sessionWriteLock :: M.MVar ()-	}--newtype XMPP a = XMPP { unXMPP :: ErrorT Error (R.ReaderT Session IO) a }--instance Functor XMPP where-	fmap f = XMPP . fmap f . unXMPP--instance Monad XMPP where-	return = XMPP . return-	m >>= f = XMPP (unXMPP m >>= unXMPP . f)--instance MonadIO XMPP where-	liftIO = XMPP . liftIO--instance E.MonadError XMPP where-	type E.ErrorType XMPP = Error-	throwError = XMPP . E.throwError-	catchError m h = XMPP (E.catchError (unXMPP m) (unXMPP . h))--instance A.Applicative XMPP where-	pure = return-	(<*>) = ap--instance MonadFix XMPP where-	mfix f = XMPP (mfix (unXMPP . f))--runXMPP :: Session -> XMPP a -> IO (Either Error a)-runXMPP s xmpp = R.runReaderT (runErrorT (unXMPP xmpp)) s--startXMPP :: H.Handle -> Text -> XMPP a -> IO (Either Error a)-startXMPP h ns xmpp = do-	sax <- X.newParser-	readLock <- M.newMVar ()-	writeLock <- M.newMVar ()-	runXMPP (Session h ns sax readLock writeLock) xmpp--restartXMPP :: Maybe H.Handle -> XMPP a -> XMPP a-restartXMPP newH xmpp = do-	Session oldH ns _ readLock writeLock <- getSession-	sax <- liftIO X.newParser-	let s = Session (maybe oldH id newH) ns sax readLock writeLock-	XMPP (R.local (const s) (unXMPP xmpp))--withLock :: (Session -> M.MVar ()) -> XMPP a -> XMPP a-withLock getLock xmpp = do-	s <- getSession-	let mvar = getLock s-	res <- liftIO (M.withMVar mvar (\_ -> runXMPP s xmpp))-	case res of-		Left err -> E.throwError err-		Right x -> return x--getSession :: XMPP Session-getSession = XMPP R.ask--getHandle :: XMPP H.Handle-getHandle = fmap sessionHandle getSession--liftTLS :: ErrorT Text IO a -> XMPP a-liftTLS io = do-	res <- liftIO (runErrorT io)-	case res of-		Left err -> E.throwError (TransportError err)-		Right x -> return x--putBytes :: ByteString -> XMPP ()-putBytes bytes = do-	h <- getHandle-	liftTLS (H.hPutBytes h bytes)--putElement :: X.Element -> XMPP ()-putElement = putBytes . encodeUtf8 . X.serialiseElement--putStanza :: S.Stanza a => a -> XMPP ()-putStanza = withLock sessionWriteLock . putElement . S.stanzaToElement--readEvents :: (Integer -> X.Event -> Bool) -> XMPP [X.Event]-readEvents done = xmpp where-	xmpp = do-		Session h _ p _ _ <- getSession-		let nextEvents = do-			-- TODO: read in larger increments-			bytes <- liftTLS (H.hGetBytes h 1)-			let eof = Data.ByteString.null bytes-			parsed <- liftIO (X.parse p bytes eof)-			case parsed of-				Left err -> E.throwError (TransportError err)-				Right events -> return events-		X.readEvents done nextEvents--getElement :: XMPP X.Element-getElement = xmpp where-	xmpp = do-		events <- readEvents endOfTree-		case X.eventsToElement events of-			Just x -> return x-			Nothing -> E.throwError (TransportError "getElement: invalid event list")-	-	endOfTree 0 (X.EventEndElement _) = True-	endOfTree _ _ = False--getStanza :: XMPP S.ReceivedStanza-getStanza = withLock sessionReadLock $ do-	elemt <- getElement-	Session _ ns _ _ _ <- getSession-	case S.elementToStanza ns elemt of-		Just x -> return x-		Nothing -> E.throwError (InvalidStanza elemt)
− Network/Protocol/XMPP/Stanza.hs 
@@ -1,276 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.Stanza-	( Stanza (..)-	-	, ReceivedStanza (..)-	, Message (..)-	, Presence (..)-	, IQ (..)-	, MessageType (..)-	, PresenceType (..)-	, IQType (..)-	-	, emptyMessage-	, emptyPresence-	, emptyIQ-	-	, elementToStanza-	) where--import           Control.Monad (when)-import qualified Data.Text-import           Data.Text (Text)-import qualified Network.Protocol.XMPP.XML as X-import           Network.Protocol.XMPP.JID (JID, parseJID, formatJID)--class Stanza a where-	stanzaTo        :: a -> Maybe JID-	stanzaFrom      :: a -> Maybe JID-	stanzaID        :: a -> Maybe Text-	stanzaLang      :: a -> Maybe Text-	stanzaPayloads  :: a -> [X.Element]-	stanzaToElement :: a -> X.Element--data ReceivedStanza-	= ReceivedMessage Message-	| ReceivedPresence Presence-	| ReceivedIQ IQ-	deriving (Show)--data Message = Message-	{ messageType     :: MessageType-	, messageTo       :: Maybe JID-	, messageFrom     :: Maybe JID-	, messageID       :: Maybe Text-	, messageLang     :: Maybe Text-	, messagePayloads :: [X.Element]-	}-	deriving (Show)--instance Stanza Message where-	stanzaTo = messageTo-	stanzaFrom = messageFrom-	stanzaID = messageID-	stanzaLang = messageLang-	stanzaPayloads = messagePayloads-	stanzaToElement x = stanzaToElement' x "message" typeStr where-		typeStr = case messageType x of-			MessageNormal -> "normal"-			MessageChat -> "chat"-			MessageGroupChat -> "groupchat"-			MessageHeadline -> "headline"-			MessageError -> "error"--data MessageType-	= MessageNormal-	| MessageChat-	| MessageGroupChat-	| MessageHeadline-	| MessageError-	deriving (Show, Eq)--emptyMessage :: MessageType -> Message-emptyMessage t = Message-	{ messageType = t-	, messageTo = Nothing-	, messageFrom = Nothing-	, messageID = Nothing-	, messageLang = Nothing-	, messagePayloads = []-	}--data Presence = Presence-	{ presenceType     :: PresenceType-	, presenceTo       :: Maybe JID-	, presenceFrom     :: Maybe JID-	, presenceID       :: Maybe Text-	, presenceLang     :: Maybe Text-	, presencePayloads :: [X.Element]-	}-	deriving (Show)--instance Stanza Presence where-	stanzaTo = presenceTo-	stanzaFrom = presenceFrom-	stanzaID = presenceID-	stanzaLang = presenceLang-	stanzaPayloads = presencePayloads-	stanzaToElement x = stanzaToElement' x "presence" typeStr where-		typeStr = case presenceType x of-			PresenceAvailable -> ""-			PresenceUnavailable -> "unavailable"-			PresenceSubscribe -> "subscribe"-			PresenceSubscribed -> "subscribed"-			PresenceUnsubscribe -> "unsubscribe"-			PresenceUnsubscribed -> "unsubscribed"-			PresenceProbe -> "probe"-			PresenceError -> "error"--data PresenceType-	= PresenceAvailable-	| PresenceUnavailable-	| PresenceSubscribe-	| PresenceSubscribed-	| PresenceUnsubscribe-	| PresenceUnsubscribed-	| PresenceProbe-	| PresenceError-	deriving (Show, Eq)--emptyPresence :: PresenceType -> Presence-emptyPresence t = Presence-	{ presenceType = t-	, presenceTo = Nothing-	, presenceFrom = Nothing-	, presenceID = Nothing-	, presenceLang = Nothing-	, presencePayloads = []-	}--data IQ = IQ-	{ iqType    :: IQType-	, iqTo      :: Maybe JID-	, iqFrom    :: Maybe JID-	, iqID      :: Maybe Text-	, iqLang    :: Maybe Text-	, iqPayload :: Maybe X.Element-	}-	deriving (Show)--instance Stanza IQ where-	stanzaTo = iqTo-	stanzaFrom = iqFrom-	stanzaID = iqID-	stanzaLang = iqLang-	stanzaPayloads iq = case iqPayload iq of-		Just elemt -> [elemt]-		Nothing -> []-	stanzaToElement x = stanzaToElement' x "iq" typeStr where-		typeStr = case iqType x of-			IQGet -> "get"-			IQSet -> "set"-			IQResult -> "result"-			IQError -> "error"--data IQType-	= IQGet-	| IQSet-	| IQResult-	| IQError-	deriving (Show, Eq)--emptyIQ :: IQType -> IQ-emptyIQ t = IQ-	{ iqType = t-	, iqTo = Nothing-	, iqFrom = Nothing-	, iqID = Nothing-	, iqLang = Nothing-	, iqPayload = Nothing-	}--stanzaToElement' :: Stanza a => a -> X.Name -> Text -> X.Element-stanzaToElement' stanza name typeStr = X.element name attrs payloads where-	payloads = map X.NodeElement (stanzaPayloads stanza)-	attrs = concat-		[ mattr "to" (fmap formatJID . stanzaTo)-		, mattr "from" (fmap formatJID . stanzaFrom)-		, mattr "id" stanzaID-		, mattr "xml:lang" stanzaLang-		, if Data.Text.null typeStr then [] else [("type", typeStr)]-		]-	mattr label f = case f stanza of-		Nothing -> []-		Just text -> [(label, text)]--elementToStanza :: Text -> X.Element -> Maybe ReceivedStanza-elementToStanza ns elemt = do-	let elemNS = X.nameNamespace (X.elementName elemt)-	when (elemNS /= Just ns) Nothing-	-	let elemName = X.nameLocalName (X.elementName elemt)-	case elemName of-		"message" -> ReceivedMessage `fmap` parseMessage elemt-		"presence" -> ReceivedPresence `fmap` parsePresence elemt-		"iq" -> ReceivedIQ `fmap` parseIQ elemt-		_ -> Nothing--parseMessage :: X.Element -> Maybe Message-parseMessage elemt = do-	typeStr <- X.attributeText "type" elemt-	msgType <- case typeStr of-		"normal"    -> Just MessageNormal-		"chat"      -> Just MessageChat-		"groupchat" -> Just MessageGroupChat-		"headline"  -> Just MessageHeadline-		"error"     -> Just MessageError-		_           -> Nothing-	msgTo <- xmlJID "to" elemt-	msgFrom <- xmlJID "from" elemt-	let msgID = X.attributeText "id" elemt-	let msgLang = X.attributeText "lang" elemt-	let payloads = X.elementChildren elemt-	return (Message msgType msgTo msgFrom msgID msgLang payloads)--parsePresence :: X.Element -> Maybe Presence-parsePresence elemt = do-	let typeStr = maybe "" id (X.attributeText "type" elemt)-	pType <- case typeStr of-		""             -> Just PresenceAvailable-		"unavailable"  -> Just PresenceUnavailable-		"subscribe"    -> Just PresenceSubscribe-		"subscribed"   -> Just PresenceSubscribed-		"unsubscribe"  -> Just PresenceUnsubscribe-		"unsubscribed" -> Just PresenceUnsubscribed-		"probe"        -> Just PresenceProbe-		"error"        -> Just PresenceError-		_              -> Nothing-		-	msgTo <- xmlJID "to" elemt-	msgFrom <- xmlJID "from" elemt-	let msgID = X.attributeText "id" elemt-	let msgLang = X.attributeText "lang" elemt-	let payloads = X.elementChildren elemt-	return (Presence pType msgTo msgFrom msgID msgLang payloads)--parseIQ :: X.Element -> Maybe IQ-parseIQ elemt = do-	typeStr <- X.attributeText "type" elemt-	iqType <- case typeStr of-		"get"    -> Just IQGet-		"set"    -> Just IQSet-		"result" -> Just IQResult-		"error"  -> Just IQError-		_        -> Nothing-	-	msgTo <- xmlJID "to" elemt-	msgFrom <- xmlJID "from" elemt-	let msgID = X.attributeText "id" elemt-	let msgLang = X.attributeText "lang" elemt-	let payload = case X.elementChildren elemt of-		[] -> Nothing-		child:_ -> Just child-	return (IQ iqType msgTo msgFrom msgID msgLang payload)--xmlJID :: X.Name -> X.Element -> Maybe (Maybe JID)-xmlJID name elemt = case X.attributeText name elemt of-	Nothing -> Just Nothing-	Just raw -> case parseJID raw of-		Just jid -> Just (Just jid)-		Nothing -> Nothing
− Network/Protocol/XMPP/XML.hs 
@@ -1,186 +0,0 @@-{-# LANGUAGE OverloadedStrings #-}---- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>--- --- This program is free software: you can redistribute it and/or modify--- it under the terms of the GNU General Public License as published by--- the Free Software Foundation, either version 3 of the License, or--- any later version.--- --- This program is distributed in the hope that it will be useful,--- but WITHOUT ANY WARRANTY; without even the implied warranty of--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the--- GNU General Public License for more details.--- --- You should have received a copy of the GNU General Public License--- along with this program.  If not, see <http://www.gnu.org/licenses/>.--module Network.Protocol.XMPP.XML-	( module Data.XML.Types-	-	-- * Constructors-	, element-	-	-- * Misc-	, contentText-	, escape-	, serialiseElement-	, readEvents-	-	-- * libxml-sax-0.4 API imitation-	, Parser-	, newParser-	, parse-	, eventsToElement-	-	) where--import           Control.Monad (when)-import           Data.ByteString (ByteString)-import qualified Data.Text-import           Data.Text (Text)-import           Data.XML.Types-import           Data.IORef (IORef, newIORef, readIORef, writeIORef)-import qualified Text.XML.LibXML.SAX as SAX--contentText :: Content -> Text-contentText (ContentText t) = t-contentText (ContentEntity e) = Data.Text.concat ["&", e, ";"]--escape :: Text -> Text-escape = Data.Text.concatMap escapeChar where-	escapeChar c = case c of-		'&' -> "&amp;"-		'<' -> "&lt;"-		'>' -> "&gt;"-		'"' -> "&quot;"-		'\'' -> "&apos;"-		_ -> Data.Text.singleton c--escapeContent :: Content -> Text-escapeContent (ContentText t) = escape t-escapeContent (ContentEntity e) = Data.Text.concat ["&", escape e, ";"]--element :: Name -> [(Name, Text)] -> [Node] -> Element-element name attrs children = Element name attrs' children where-	attrs' = map (uncurry mkattr) attrs--mkattr :: Name -> Text -> (Name, [Content])-mkattr n val = (n, [ContentText val])---- A somewhat primitive serialisation function------ TODO: better namespace / prefix handling-serialiseElement :: Element -> Text-serialiseElement e = text where-	text = Data.Text.concat ["<", eName, " ", attrs, ">", contents, "</", eName, ">"]-	eName = formatName (elementName e)-	formatName = escape . nameLocalName-	attrs = Data.Text.intercalate " " (map attr (elementAttributes e ++ nsattr))-	attr (n, c) = Data.Text.concat ([formatName n, "=\""] ++ map escapeContent c ++ ["\""])-	nsattr = case nameNamespace $ elementName e of-		Nothing -> []-		Just ns -> [mkattr "xmlns" ns]-	contents = Data.Text.concat (map serialiseNode (elementNodes e))-	-	serialiseNode (NodeElement e') = serialiseElement e'-	serialiseNode (NodeContent c) = escape (contentText c)-	serialiseNode (NodeComment _) = ""-	serialiseNode (NodeInstruction _) = ""---- quick-and-dirty imitation of libxml-sax-0.4 API; later, this should--- probably be rewritten to use ST and discard the list parsing-data Parser = Parser (SAX.Parser IO) (IORef (Either Text [Event]))--newParser :: IO Parser-newParser = do-	ref <- newIORef (Right [])-	p <- SAX.newParserIO Nothing-	-	let addEvent e = do-		x <- readIORef ref-		case x of-			Left _ -> return ()-			Right es -> writeIORef ref (Right (e:es))-		return True-	-	SAX.setCallback p SAX.parsedBeginElement (\name attrs -> addEvent (EventBeginElement name attrs))-	SAX.setCallback p SAX.parsedEndElement (addEvent . EventEndElement)-	SAX.setCallback p SAX.parsedCharacters (addEvent . EventContent . ContentText)-	SAX.setCallback p SAX.parsedComment (addEvent . EventComment)-	SAX.setCallback p SAX.parsedInstruction (addEvent . EventInstruction)-	SAX.setCallback p SAX.reportError (\err -> writeIORef ref (Left err) >> return False)-	-	return (Parser p ref)--parse :: Parser -> ByteString -> Bool -> IO (Either Text [Event])-parse (Parser p ref) bytes finish = do-	writeIORef ref (Right [])-	SAX.parseBytes p bytes-	when finish (SAX.parseComplete p)-	eitherEvents <- readIORef ref-	return $ case eitherEvents of-		Left err -> Left err-		Right events -> Right (reverse events)--readEvents :: Monad m-           => (Integer -> Event -> Bool)-           -> m [Event]-           -> m [Event]-readEvents done nextEvents = readEvents' 0 [] where-	readEvents' depth acc = do-		events <- nextEvents-		let (done', depth', acc') = step events depth acc-		if done'-			then return acc'-			else readEvents' depth' acc'-	-	step [] depth acc = (False, depth, acc)-	step (e:es) depth acc = let-		depth' = depth + case e of-			(EventBeginElement _ _) -> 1-			(EventEndElement _) -> (- 1)-			_ -> 0-		acc' = e : acc-		in if done depth' e-			then (True, depth', reverse acc')-			else step es depth' acc'---- | Convert a list of events to a single 'Element'. If the events do not--- contain at least one valid element, 'Nothing' will be returned instead.-eventsToElement :: [Event] -> Maybe Element-eventsToElement es = case eventsToNodes es >>= isElement of-	(e:_) -> Just e-	_ -> Nothing--eventsToNodes :: [Event] -> [Node]-eventsToNodes = concatMap blockToNodes . splitBlocks---- Split event list into a sequence of "blocks", which are the events including--- and between a pair of tags. <start><start2/></start> and <start/> are both--- single blocks.-splitBlocks :: [Event] -> [[Event]]-splitBlocks es = ret where-	(_, _, ret) = foldl splitBlocks' (0, [], []) es-	-	splitBlocks' (depth, accum, allAccum) e = split where-		split = if depth' == 0-			then (depth', [], allAccum ++ [accum'])-			else (depth', accum', allAccum)-		accum' = accum ++ [e]-		depth' :: Integer-		depth' = depth + case e of-			(EventBeginElement _ _) -> 1-			(EventEndElement _) -> (- 1)-			_ -> 0--blockToNodes :: [Event] -> [Node]-blockToNodes [] = []-blockToNodes (begin:rest) = nodes where-	end = last rest-	nodes = case (begin, end) of-		(EventBeginElement name attrs, EventEndElement _) -> [node name attrs]-		(EventContent c, _) -> [NodeContent c]-		_ -> []-	-	node n as = NodeElement (Element n as (eventsToNodes (init rest)))
+ lib/Network/Protocol/XMPP.hs view
@@ -0,0 +1,73 @@+-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP+	( +	-- * JIDs+	  JID (..)+	, Node+	, Domain+	, Resource+	+	, strNode+	, strDomain+	, strResource+	+	, parseJID+	, formatJID+	+	-- * Stanzas+	, Stanza+		( stanzaTo+		, stanzaFrom+		, stanzaID+		, stanzaLang+		, stanzaPayloads+		)+	+	, ReceivedStanza (..)+	, Message (..)+	, Presence (..)+	, IQ (..)+	, MessageType (..)+	, PresenceType (..)+	, IQType (..)+	+	, emptyMessage+	, emptyPresence+	, emptyIQ+	+	-- * The XMPP monad+	, XMPP+	, Server (..)+	, Error (..)+	, runClient+	, runComponent+	, putStanza+	, getStanza+	, bindJID+	+	-- ** Resuming sessions+	, Session+	, getSession+	, runXMPP+	) where++import           Network.Protocol.XMPP.Client+import           Network.Protocol.XMPP.Component+import           Network.Protocol.XMPP.Connections+import           Network.Protocol.XMPP.JID+import           Network.Protocol.XMPP.Monad+import           Network.Protocol.XMPP.Stanza
+ lib/Network/Protocol/XMPP/Client.hs view
@@ -0,0 +1,147 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Client+	( runClient+	, bindJID+	) where++import           Control.Monad ((>=>))+import           Control.Monad.Error (throwError)+import           Control.Monad.Trans (liftIO)+import           Data.ByteString (ByteString)+import           Data.Text (Text)+import           Network (connectTo)+import qualified System.IO as IO++import qualified Network.Protocol.XMPP.Client.Authentication as A+import qualified Network.Protocol.XMPP.Connections as C+import qualified Network.Protocol.XMPP.Client.Features as F+import qualified Network.Protocol.XMPP.Handle as H+import qualified Network.Protocol.XMPP.JID as J+import qualified Network.Protocol.XMPP.Monad as M+import qualified Network.Protocol.XMPP.XML as X+import           Network.Protocol.XMPP.ErrorT+import           Network.Protocol.XMPP.Stanza++runClient :: C.Server+          -> J.JID -- ^ Client JID+          -> Text -- ^ Username+          -> Text -- ^ Password+          -> M.XMPP a+          -> IO (Either M.Error a)+runClient server jid username password xmpp = do+	-- Open a TCP connection+	let C.Server sjid host port = server+	rawHandle <- connectTo host port+	IO.hSetBuffering rawHandle IO.NoBuffering+	let handle = H.PlainHandle rawHandle+	+	-- Open the initial stream and authenticate+	M.startXMPP handle "jabber:client" $ do+		features <- newStream sjid+		tryTLS sjid features $ \tlsFeatures -> do+			let mechanisms = authenticationMechanisms tlsFeatures+			A.authenticate mechanisms jid sjid username password+			M.restartXMPP Nothing (newStream sjid >> xmpp)++newStream :: J.JID -> M.XMPP [F.Feature]+newStream jid = do+	M.putBytes (C.xmlHeader "jabber:client" jid)+	void (M.readEvents C.startOfStream)+	F.parseFeatures `fmap` M.getElement++tryTLS :: J.JID -> [F.Feature] -> ([F.Feature] -> M.XMPP a) -> M.XMPP a+tryTLS sjid features m+	| not (streamSupportsTLS features) = m features+	| otherwise = do+		M.putElement xmlStartTLS+		void M.getElement+		h <- M.getHandle+		eitherTLS <- liftIO (runErrorT (H.startTLS h))+		case eitherTLS of+			Left err -> throwError (M.TransportError err)+			Right tls -> M.restartXMPP (Just tls) (newStream sjid >>= m)++authenticationMechanisms :: [F.Feature] -> [ByteString]+authenticationMechanisms = step where+	step [] = []+	step (f:fs) = case f of+		(F.FeatureSASL ms) -> ms+		_ -> step fs++-- | Send a @\<bind\>@ message for the given 'J.JID', returning the server's reply. In+-- most cases the reply will be the same as the input. However, if the input has no+-- 'J.Resource', the returned 'J.JID' will contain a generated 'J.Resource'.+-- +-- Clients must bind a 'J.JID' before sending any 'Stanza's.+bindJID :: J.JID -> M.XMPP J.JID+bindJID jid = do+	-- Bind+	M.putStanza (bindStanza (J.jidResource jid))+	bindResult <- M.getStanza+	let getJID =+		X.elementChildren+		>=> X.isNamed "{urn:ietf:params:xml:ns:xmpp-bind}jid"+		>=> X.elementNodes+		>=> X.isContent+		>=> return . X.contentText+	+	let maybeJID = do+		iq <- case bindResult of+			ReceivedIQ x -> Just x+			_ -> Nothing+		payload <- iqPayload iq+		+		case getJID payload of+			[] -> Nothing+			(str:_) -> J.parseJID str+	+	returnedJID <- case maybeJID of+		Just x -> return x+		Nothing -> throwError (M.InvalidBindResult bindResult)+	+	-- Session+	M.putStanza sessionStanza+	void M.getStanza+	+	M.putStanza (emptyPresence PresenceAvailable)+	void M.getStanza+	+	return returnedJID++bindStanza :: Maybe J.Resource -> IQ+bindStanza resource = (emptyIQ IQSet) { iqPayload = Just payload } where+	payload = X.element "{urn:ietf:params:xml:ns:xmpp-bind}bind" [] requested+	requested = case fmap J.strResource resource of+		Nothing -> []+		Just x -> [X.NodeElement (X.element "resource" [] [X.NodeContent (X.ContentText x)])]++sessionStanza :: IQ+sessionStanza = (emptyIQ IQSet) { iqPayload = Just payload } where+	payload = X.element "{urn:ietf:params:xml:ns:xmpp-session}session" [] []++streamSupportsTLS :: [F.Feature] -> Bool+streamSupportsTLS = any isStartTLS where+	isStartTLS (F.FeatureStartTLS _) = True+	isStartTLS _                     = False++xmlStartTLS :: X.Element+xmlStartTLS = X.element "{urn:ietf:params:xml:ns:xmpp-tls}starttls" [] []++void :: Monad m => m a -> m ()+void m = m >> return ()
+ lib/Network/Protocol/XMPP/Client/Authentication.hs view
@@ -0,0 +1,135 @@+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE DeriveDataTypeable #-}++-- Copyright (C) 2009-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Client.Authentication+	( Result (..)+	, authenticate+	) where++import qualified Control.Exception as Exc+import           Control.Monad (when, (>=>))+import           Control.Monad.IO.Class (MonadIO, liftIO)+import qualified Control.Monad.Error as E+import           Data.ByteString (ByteString)+import qualified Data.ByteString.Char8+import qualified Data.Text+import           Data.Text (Text)+import           Data.Text.Encoding (encodeUtf8)+import           Data.Typeable (Typeable)+import qualified Network.Protocol.SASL.GNU as SASL++import qualified Network.Protocol.XMPP.Monad as M+import qualified Network.Protocol.XMPP.XML as X+import           Network.Protocol.XMPP.JID (JID, formatJID, jidResource)++data Result = Success | Failure+	deriving (Show, Eq)++data AuthException = XmppError M.Error | SaslError Text+	deriving (Typeable, Show)++instance Exc.Exception AuthException++authenticate :: [ByteString] -- ^ Mechanisms+             -> JID -- ^ User JID+             -> JID -- ^ Server JID+             -> Text -- ^ Username+             -> Text -- ^ Password+             -> M.XMPP ()+authenticate xmppMechanisms userJID serverJID username password = xmpp where+	mechanisms = map SASL.Mechanism xmppMechanisms+	authz = formatJID (userJID { jidResource = Nothing })+	hostname = formatJID serverJID+	+	xmpp = do+		ctx <- M.getSession+		res <- liftIO . Exc.try . SASL.runSASL $ do+			suggested <- SASL.clientSuggestMechanism mechanisms+			case suggested of+				Nothing -> saslError "No supported authentication mechanism"+				Just mechanism -> authSasl ctx mechanism+		case res of+			Right Success -> return ()+			Right Failure -> E.throwError M.AuthenticationFailure+			Left (XmppError err) -> E.throwError err+			Left (SaslError err) -> E.throwError (M.AuthenticationError err)+	+	authSasl ctx mechanism = do+		let (SASL.Mechanism mechBytes) = mechanism+		sessionResult <- SASL.runClient mechanism $ do+			SASL.setProperty SASL.PropertyAuthzID (encodeUtf8 authz)+			SASL.setProperty SASL.PropertyAuthID (encodeUtf8 username)+			SASL.setProperty SASL.PropertyPassword (encodeUtf8 password)+			SASL.setProperty SASL.PropertyService "xmpp"+			SASL.setProperty SASL.PropertyHostname (encodeUtf8 hostname)+			+			(b64text, rc) <- SASL.step64 ""+			putElement ctx $ X.element "{urn:ietf:params:xml:ns:xmpp-sasl}auth"+				[("mechanism", Data.Text.pack (Data.ByteString.Char8.unpack mechBytes))]+				[X.NodeContent (X.ContentText (Data.Text.pack (Data.ByteString.Char8.unpack b64text)))]+			+			case rc of+				SASL.Complete -> saslFinish ctx+				SASL.NeedsMore -> saslLoop ctx+			+		case sessionResult of+			Right x -> return x+			Left err -> saslError (Data.Text.pack (show err))++saslLoop :: M.Session -> SASL.Session Result+saslLoop ctx = do+	elemt <- getElement ctx+	let name = "{urn:ietf:params:xml:ns:xmpp-sasl}challenge"+	let getChallengeText =+		X.isNamed name+		>=> X.elementNodes+		>=> X.isContent+		>=> return . X.contentText+	let challengeText = getChallengeText elemt+	when (null challengeText) (saslError "Received empty challenge")+	+	(b64text, rc) <- SASL.step64 (Data.ByteString.Char8.pack (concatMap Data.Text.unpack challengeText))+	putElement ctx $ X.element "{urn:ietf:params:xml:ns:xmpp-sasl}response"+		[] [X.NodeContent (X.ContentText (Data.Text.pack (Data.ByteString.Char8.unpack b64text)))]+	case rc of+		SASL.Complete -> saslFinish ctx+		SASL.NeedsMore -> saslLoop ctx++saslFinish :: M.Session -> SASL.Session Result+saslFinish ctx = do+	elemt <- getElement ctx+	let name = "{urn:ietf:params:xml:ns:xmpp-sasl}success"+	let success = X.isNamed name elemt+	return (if null success then Failure else Success)++putElement :: M.Session -> X.Element -> SASL.Session ()+putElement ctx elemt = liftIO $ do+	res <- M.runXMPP ctx (M.putElement elemt)+	case res of+		Left err -> Exc.throwIO (XmppError err)+		Right x -> return x++getElement :: M.Session -> SASL.Session X.Element+getElement ctx = liftIO $ do+	res <- M.runXMPP ctx M.getElement+	case res of+		Left err -> Exc.throwIO (XmppError err)+		Right x -> return x++saslError :: MonadIO m => Text -> m a+saslError = liftIO . Exc.throwIO . SaslError
+ lib/Network/Protocol/XMPP/Client/Features.hs view
@@ -0,0 +1,71 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Client.Features+	( Feature (..)+	, parseFeatures+	, parseFeature+	) where++import           Control.Arrow ((&&&))+import qualified Data.ByteString.Char8+import           Data.ByteString (ByteString)+import qualified Data.Text+import qualified Network.Protocol.XMPP.XML as X++data Feature =+	  FeatureStartTLS Bool+	| FeatureSASL [ByteString]+	| FeatureRegister+	| FeatureBind+	| FeatureSession+	| FeatureUnknown X.Element+	deriving (Show, Eq)++parseFeatures :: X.Element -> [Feature]+parseFeatures e =+	X.isNamed nameFeatures e+	>>= X.elementChildren+	>>= return . parseFeature++parseFeature :: X.Element -> Feature+parseFeature elemt = feature where+	unpackName = (maybe "" id . X.nameNamespace) &&& X.nameLocalName+	feature = case unpackName (X.elementName elemt) of+		("urn:ietf:params:xml:ns:xmpp-tls", "starttls") -> parseFeatureTLS elemt+		("urn:ietf:params:xml:ns:xmpp-sasl", "mechanisms") -> parseFeatureSASL elemt+		("http://jabber.org/features/iq-register", "register") -> FeatureRegister+		("urn:ietf:params:xml:ns:xmpp-bind", "bind") -> FeatureBind+		("urn:ietf:params:xml:ns:xmpp-session", "session") -> FeatureSession+		_ -> FeatureUnknown elemt++parseFeatureTLS :: X.Element -> Feature+parseFeatureTLS _ = FeatureStartTLS True -- TODO: detect whether or not required++parseFeatureSASL :: X.Element -> Feature+parseFeatureSASL e = FeatureSASL $+	X.elementChildren e+	>>= X.isNamed nameMechanism+	>>= X.elementNodes+	>>= X.isContent+	>>= return . Data.ByteString.Char8.pack . Data.Text.unpack . X.contentText++nameMechanism :: X.Name+nameMechanism = "{urn:ietf:params:xml:ns:xmpp-sasl}mechanism"++nameFeatures :: X.Name+nameFeatures = "{http://etherx.jabber.org/streams}features"
+ lib/Network/Protocol/XMPP/Component.hs view
@@ -0,0 +1,85 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010 Stephan Maka <stephan@spaceboyz.net>+-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Component+	( runComponent+	) where++import           Control.Monad (when)+import           Control.Monad.Error (throwError)+import           Data.Bits (shiftR, (.&.))+import           Data.Char (intToDigit)+import qualified Data.ByteString+import           Data.ByteString (ByteString)+import qualified Data.Text+import           Data.Text (Text)+import           Data.Text.Encoding (encodeUtf8)+import           Network (connectTo)+import           Network.Protocol.SASL.GNU (sha1)+import qualified System.IO as IO++import qualified Network.Protocol.XMPP.Connections as C+import qualified Network.Protocol.XMPP.Handle as H+import qualified Network.Protocol.XMPP.Monad as M+import qualified Network.Protocol.XMPP.XML as X+import           Network.Protocol.XMPP.JID (JID)++runComponent :: C.Server+             -> Text -- ^ Server secret+             -> M.XMPP a+             -> IO (Either M.Error a)+runComponent server password xmpp = do+	let C.Server jid host port = server+	rawHandle <- connectTo host port+	IO.hSetBuffering rawHandle IO.NoBuffering+	let handle = H.PlainHandle rawHandle+	M.startXMPP handle "jabber:component:accept" $ do+		streamID <- beginStream jid+		authenticate streamID password+		xmpp++beginStream :: JID -> M.XMPP Text+beginStream jid = do+	M.putBytes $ C.xmlHeader "jabber:component:accept" jid+	events <- M.readEvents C.startOfStream+	case parseStreamID $ last events of+		Nothing -> throwError M.NoComponentStreamID+		Just x -> return x++parseStreamID :: X.Event -> Maybe Text+parseStreamID (X.EventBeginElement name attrs) = X.attributeText+	"{jabber:component:accept}jid"+	(X.Element name attrs [])+parseStreamID _ = Nothing++authenticate :: Text -> Text -> M.XMPP ()+authenticate streamID password = do+	let bytes = buildSecret streamID password+	let digest = showDigest (sha1 bytes)+	M.putElement (X.element "handshake" [] [X.NodeContent (X.ContentText digest)])+	result <- M.getElement+	let nameHandshake = "{jabber:component:accept}handshake"+	when (null (X.isNamed nameHandshake result)) (throwError M.AuthenticationFailure)++buildSecret :: Text -> Text -> ByteString+buildSecret sid password = encodeUtf8 (X.escape (Data.Text.append sid password))++showDigest :: ByteString -> Text+showDigest = Data.Text.pack . concatMap wordToHex . Data.ByteString.unpack where+	wordToHex x = [hexDig (shiftR x 4), hexDig (x .&. 0xF)]+	hexDig = intToDigit . fromIntegral
+ lib/Network/Protocol/XMPP/Connections.hs view
@@ -0,0 +1,60 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Connections+	( Server (..)+	, xmlHeader+	, startOfStream+	, qnameStream+	) where++import           Network (HostName, PortID)+import           Data.ByteString (ByteString)+import qualified Data.Text+import           Data.Text (Text)+import           Data.Text.Encoding (encodeUtf8)++import qualified Network.Protocol.XMPP.XML as X+import           Network.Protocol.XMPP.JID (JID, formatJID)++data Server = Server+	{ serverJID      :: JID+	, serverHostname :: HostName+	, serverPort     :: PortID+	}++-- Since only the opening tag should be written, normal XML+-- serialization cannot be used. Be careful to escape any embedded+-- attributes.+xmlHeader :: Text -> JID -> ByteString+xmlHeader ns jid = encodeUtf8 header where+	attr x = Data.Text.concat ["\"", X.escape x, "\""]+	header = Data.Text.concat+		[ "<?xml version='1.0'?>\n"+		, "<stream:stream xmlns=" , attr ns+		, " to=", attr (formatJID jid)+		, " version=\"1.0\""+		, " xmlns:stream=\"http://etherx.jabber.org/streams\">"+		]++startOfStream :: Integer -> X.Event -> Bool+startOfStream depth event = case (depth, event) of+	(1, (X.EventBeginElement elemName _)) -> qnameStream == elemName+	_ -> False++qnameStream :: X.Name+qnameStream = "{http://etherx.jabber.org/streams}stream"
+ lib/Network/Protocol/XMPP/ErrorT.hs view
@@ -0,0 +1,75 @@+{-# LANGUAGE TypeFamilies #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.ErrorT+	( ErrorT (..)+	, mapErrorT+	) where++import           Control.Monad (liftM)+import           Control.Monad.Fix (MonadFix, mfix)+import           Control.Monad.Trans (MonadIO, liftIO)+import           Control.Monad.Trans.Class (MonadTrans, lift)+import qualified Control.Monad.Error as E+import           Control.Monad.Error (ErrorType)+import qualified Control.Monad.Reader as R+import           Control.Monad.Reader (EnvType)++-- A custom version of ErrorT, without the 'Error' class restriction.++newtype ErrorT e m a = ErrorT { runErrorT :: m (Either e a) }++instance Functor m => Functor (ErrorT e m) where+	fmap f = ErrorT . fmap (fmap f) . runErrorT++instance Monad m => Monad (ErrorT e m) where+	return = ErrorT . return . Right+	(>>=) m k = ErrorT $ do+		x <- runErrorT m+		case x of+			Left l -> return (Left l)+			Right r -> runErrorT (k r)++instance Monad m => E.MonadError (ErrorT e m) where+	type ErrorType (ErrorT e m) = e+	throwError = ErrorT . return . Left+	catchError m h = ErrorT $ do+		x <- runErrorT m+		case x of+			Left l -> runErrorT (h l)+			Right r -> return (Right r)++instance MonadTrans (ErrorT e) where+	lift = ErrorT . liftM Right++instance R.MonadReader m => R.MonadReader (ErrorT e m) where+	type EnvType (ErrorT e m) = EnvType m+	ask = lift R.ask+	local = mapErrorT . R.local++instance MonadIO m => MonadIO (ErrorT e m) where+	liftIO = lift . liftIO++instance MonadFix m => MonadFix (ErrorT e m) where+	mfix f = ErrorT $ mfix $ \ex -> runErrorT $ f $ case ex of+		Right x -> x+		_        -> error "empty mfix parameter"++mapErrorT :: (m (Either e a) -> n (Either e' b))+           -> ErrorT e m a+           -> ErrorT e' n b+mapErrorT f m = ErrorT (f (runErrorT m))
+ lib/Network/Protocol/XMPP/Handle.hs view
@@ -0,0 +1,71 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Handle+	( Handle (..)+	, startTLS+	, hPutBytes+	, hGetBytes+	) where++import           Control.Monad (when)+import qualified Control.Monad.Error as E+import           Control.Monad.Trans (liftIO)+import qualified Data.ByteString+import           Data.ByteString (ByteString)+import qualified Data.ByteString.Lazy+import qualified Data.Text+import           Data.Text (Text)+import qualified System.IO as IO+import qualified Network.Protocol.TLS.GNU as TLS+import           Network.Protocol.XMPP.ErrorT++data Handle =+	  PlainHandle IO.Handle+	| SecureHandle IO.Handle TLS.Session++liftTLS :: TLS.Session -> TLS.TLS a -> ErrorT Text IO a+liftTLS s = liftTLS' . TLS.runTLS s++liftTLS' :: IO (Either TLS.Error a) -> ErrorT Text IO a+liftTLS' io = do+	eitherX <- liftIO io+	case eitherX of+		Left err -> E.throwError (Data.Text.pack (show err))+		Right x -> return x++startTLS :: Handle -> ErrorT Text IO Handle+startTLS (SecureHandle _ _) = E.throwError "Can't start TLS on a secure handle"+startTLS (PlainHandle h) = liftTLS' $ TLS.runClient (TLS.handleTransport h) $ do+	TLS.setPriority [TLS.X509]+	TLS.setCredentials =<< TLS.certificateCredentials+	TLS.handshake+	SecureHandle h `fmap` TLS.getSession++hPutBytes :: Handle -> ByteString -> ErrorT Text IO ()+hPutBytes (PlainHandle h)  = liftIO . Data.ByteString.hPut h+hPutBytes (SecureHandle _ s) = liftTLS s . TLS.putBytes . toLazy where+	toLazy bytes = Data.ByteString.Lazy.fromChunks [bytes]++hGetBytes :: Handle -> Integer -> ErrorT Text IO ByteString+hGetBytes (PlainHandle h) n = liftIO (Data.ByteString.hGet h (fromInteger n))+hGetBytes (SecureHandle h s) n = liftTLS s $ do+	pending <- TLS.checkPending+	let wait = IO.hWaitForInput h (- 1) >> return ()+	when (pending == 0) (liftIO wait)+	lazy <- TLS.getBytes n+	return (Data.ByteString.concat (Data.ByteString.Lazy.toChunks lazy))
+ lib/Network/Protocol/XMPP/JID.hs view
@@ -0,0 +1,120 @@+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE CPP #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.JID+	( JID (..)+	, Node (..)+	, Domain (..)+	, Resource (..)+	+	, parseJID+	, parseJID_+	, formatJID+	) where++import qualified Data.Text+import           Data.Text (Text)+import qualified Data.Text.IDN.StringPrep as SP+import           Data.String (IsString, fromString)++newtype Node = Node { strNode :: Text }+newtype Domain = Domain { strDomain :: Text }+newtype Resource = Resource { strResource :: Text }++instance Show Node where+	showsPrec d (Node x) = showParen (d > 10) $+		showString "Node " . shows x++instance Show Domain where+	showsPrec d (Domain x) = showParen (d > 10) $+		showString "Domain " . shows x++instance Show Resource where+	showsPrec d (Resource x) = showParen (d > 10) $+		showString "Resource " . shows x++instance Eq Node where+	(==) = equaling strNode++instance Eq Domain where+	(==) = equaling strDomain++instance Eq Resource where+	(==) = equaling strResource++data JID = JID+	{ jidNode :: Maybe Node+	, jidDomain :: Domain+	, jidResource :: Maybe Resource+	}+	deriving (Eq)++instance Show JID where+	showsPrec d jid =  showParen (d > 10) $+		showString "JID " . shows (formatJID jid)++instance IsString JID where+	fromString = parseJID_ . fromString++parseJID :: Text -> Maybe JID+parseJID str = maybeJID where+	(node, postNode) = case textSpanBy (/= '@') str of+		(x, y) -> if Data.Text.null y+			then ("", x)+			else (x, Data.Text.drop 1 y)+	(domain, resource) = case textSpanBy (/= '/') postNode of+		(x, y) -> if Data.Text.null y+			then (x, "")+			else (x, Data.Text.drop 1 y)+	nullable x f = if Data.Text.null x+		then Just Nothing+		else fmap Just (f x)+	maybeJID = do+		preppedNode <- nullable node (stringprepM SP.xmppNode)+		preppedDomain <- stringprepM SP.nameprep domain+		preppedResource <- nullable resource (stringprepM SP.xmppResource)+		return $ JID+			(fmap Node preppedNode)+			(Domain preppedDomain)+			(fmap Resource preppedResource)+	stringprepM p x = case SP.stringprep p SP.defaultFlags x of+		Left _ -> Nothing+		Right y -> Just y++parseJID_ :: Text -> JID+parseJID_ text = case parseJID text of+	Just jid -> jid+	Nothing -> error "Malformed JID"++formatJID :: JID -> Text+formatJID (JID node (Domain domain) resource) = formatted where+	formatted = Data.Text.concat [node', domain, resource']+	node' = maybe "" (\(Node x) -> Data.Text.append x "@") node+	resource' = maybe "" (\(Resource x) -> Data.Text.append "/" x) resource++-- Similar to 'comparing'+equaling :: Eq a => (b -> a) -> b -> b -> Bool+equaling f x y = f x == f y++-- multi-version 'text' compatibility+textSpanBy :: (Char -> Bool) -> Text -> (Text, Text)+#if MIN_VERSION_text(0,11,0)+textSpanBy = Data.Text.span+#else+textSpanBy = Data.Text.spanBy+#endif
+ lib/Network/Protocol/XMPP/Monad.hs view
@@ -0,0 +1,192 @@+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Monad+	( XMPP (..)+	, Error (..)+	, Session (..)+	, runXMPP+	, startXMPP+	, restartXMPP+	+	, getHandle+	, getSession+	+	, readEvents+	, getElement+	, getStanza+	+	, putBytes+	, putElement+	, putStanza+	) where++import qualified Control.Applicative as A+import qualified Control.Concurrent.MVar as M+import           Control.Monad (ap)+import           Control.Monad.Fix (MonadFix, mfix)+import           Control.Monad.Trans (MonadIO, liftIO)+import qualified Control.Monad.Error as E+import           Control.Monad.Error (ErrorType)+import qualified Control.Monad.Reader as R+import qualified Data.ByteString+import           Data.ByteString (ByteString)+import           Data.Text (Text)+import           Data.Text.Encoding (encodeUtf8)++import           Network.Protocol.XMPP.ErrorT+import qualified Network.Protocol.XMPP.Handle as H+import qualified Network.Protocol.XMPP.Stanza as S+import qualified Network.Protocol.XMPP.XML as X++data Error+	-- | The remote host refused the specified authentication credentials.+	= AuthenticationFailure+	+	-- | There was an error while authenticating with the remote host.+	| AuthenticationError Text+	+	-- | An unrecognized or malformed 'S.Stanza' was received from the remote+	-- host.+	| InvalidStanza X.Element+	+	-- | The remote host sent an invalid reply to a resource bind request.+	| InvalidBindResult S.ReceivedStanza+	+	-- | There was an error with the underlying transport.+	| TransportError Text+	+	-- | The remote host did not send a stream ID when accepting a component+	-- connection.+	| NoComponentStreamID+	deriving (Show)++data Session = Session+	{ sessionHandle :: H.Handle+	, sessionNamespace :: Text+	, sessionParser :: X.Parser+	, sessionReadLock :: M.MVar ()+	, sessionWriteLock :: M.MVar ()+	}++newtype XMPP a = XMPP { unXMPP :: ErrorT Error (R.ReaderT Session IO) a }++instance Functor XMPP where+	fmap f = XMPP . fmap f . unXMPP++instance Monad XMPP where+	return = XMPP . return+	m >>= f = XMPP (unXMPP m >>= unXMPP . f)++instance MonadIO XMPP where+	liftIO = XMPP . liftIO++instance E.MonadError XMPP where+	type ErrorType XMPP = Error+	throwError = XMPP . E.throwError+	catchError m h = XMPP (E.catchError (unXMPP m) (unXMPP . h))++instance A.Applicative XMPP where+	pure = return+	(<*>) = ap++instance MonadFix XMPP where+	mfix f = XMPP (mfix (unXMPP . f))++runXMPP :: Session -> XMPP a -> IO (Either Error a)+runXMPP s xmpp = R.runReaderT (runErrorT (unXMPP xmpp)) s++startXMPP :: H.Handle -> Text -> XMPP a -> IO (Either Error a)+startXMPP h ns xmpp = do+	sax <- X.newParser+	readLock <- M.newMVar ()+	writeLock <- M.newMVar ()+	runXMPP (Session h ns sax readLock writeLock) xmpp++restartXMPP :: Maybe H.Handle -> XMPP a -> XMPP a+restartXMPP newH xmpp = do+	Session oldH ns _ readLock writeLock <- getSession+	sax <- liftIO X.newParser+	let s = Session (maybe oldH id newH) ns sax readLock writeLock+	XMPP (R.local (const s) (unXMPP xmpp))++withLock :: (Session -> M.MVar ()) -> XMPP a -> XMPP a+withLock getLock xmpp = do+	s <- getSession+	let mvar = getLock s+	res <- liftIO (M.withMVar mvar (\_ -> runXMPP s xmpp))+	case res of+		Left err -> E.throwError err+		Right x -> return x++getSession :: XMPP Session+getSession = XMPP R.ask++getHandle :: XMPP H.Handle+getHandle = fmap sessionHandle getSession++liftTLS :: ErrorT Text IO a -> XMPP a+liftTLS io = do+	res <- liftIO (runErrorT io)+	case res of+		Left err -> E.throwError (TransportError err)+		Right x -> return x++putBytes :: ByteString -> XMPP ()+putBytes bytes = do+	h <- getHandle+	liftTLS (H.hPutBytes h bytes)++putElement :: X.Element -> XMPP ()+putElement = putBytes . encodeUtf8 . X.serialiseElement++putStanza :: S.Stanza a => a -> XMPP ()+putStanza = withLock sessionWriteLock . putElement . S.stanzaToElement++readEvents :: (Integer -> X.Event -> Bool) -> XMPP [X.Event]+readEvents done = xmpp where+	xmpp = do+		Session h _ p _ _ <- getSession+		let nextEvents = do+			-- TODO: read in larger increments+			bytes <- liftTLS (H.hGetBytes h 1)+			let eof = Data.ByteString.null bytes+			parsed <- liftIO (X.parse p bytes eof)+			case parsed of+				Left err -> E.throwError (TransportError err)+				Right events -> return events+		X.readEvents done nextEvents++getElement :: XMPP X.Element+getElement = xmpp where+	xmpp = do+		events <- readEvents endOfTree+		case X.eventsToElement events of+			Just x -> return x+			Nothing -> E.throwError (TransportError "getElement: invalid event list")+	+	endOfTree 0 (X.EventEndElement _) = True+	endOfTree _ _ = False++getStanza :: XMPP S.ReceivedStanza+getStanza = withLock sessionReadLock $ do+	elemt <- getElement+	Session _ ns _ _ _ <- getSession+	case S.elementToStanza ns elemt of+		Just x -> return x+		Nothing -> E.throwError (InvalidStanza elemt)
+ lib/Network/Protocol/XMPP/Stanza.hs view
@@ -0,0 +1,276 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.Stanza+	( Stanza (..)+	+	, ReceivedStanza (..)+	, Message (..)+	, Presence (..)+	, IQ (..)+	, MessageType (..)+	, PresenceType (..)+	, IQType (..)+	+	, emptyMessage+	, emptyPresence+	, emptyIQ+	+	, elementToStanza+	) where++import           Control.Monad (when)+import qualified Data.Text+import           Data.Text (Text)+import qualified Network.Protocol.XMPP.XML as X+import           Network.Protocol.XMPP.JID (JID, parseJID, formatJID)++class Stanza a where+	stanzaTo        :: a -> Maybe JID+	stanzaFrom      :: a -> Maybe JID+	stanzaID        :: a -> Maybe Text+	stanzaLang      :: a -> Maybe Text+	stanzaPayloads  :: a -> [X.Element]+	stanzaToElement :: a -> X.Element++data ReceivedStanza+	= ReceivedMessage Message+	| ReceivedPresence Presence+	| ReceivedIQ IQ+	deriving (Show)++data Message = Message+	{ messageType     :: MessageType+	, messageTo       :: Maybe JID+	, messageFrom     :: Maybe JID+	, messageID       :: Maybe Text+	, messageLang     :: Maybe Text+	, messagePayloads :: [X.Element]+	}+	deriving (Show)++instance Stanza Message where+	stanzaTo = messageTo+	stanzaFrom = messageFrom+	stanzaID = messageID+	stanzaLang = messageLang+	stanzaPayloads = messagePayloads+	stanzaToElement x = stanzaToElement' x "message" typeStr where+		typeStr = case messageType x of+			MessageNormal -> "normal"+			MessageChat -> "chat"+			MessageGroupChat -> "groupchat"+			MessageHeadline -> "headline"+			MessageError -> "error"++data MessageType+	= MessageNormal+	| MessageChat+	| MessageGroupChat+	| MessageHeadline+	| MessageError+	deriving (Show, Eq)++emptyMessage :: MessageType -> Message+emptyMessage t = Message+	{ messageType = t+	, messageTo = Nothing+	, messageFrom = Nothing+	, messageID = Nothing+	, messageLang = Nothing+	, messagePayloads = []+	}++data Presence = Presence+	{ presenceType     :: PresenceType+	, presenceTo       :: Maybe JID+	, presenceFrom     :: Maybe JID+	, presenceID       :: Maybe Text+	, presenceLang     :: Maybe Text+	, presencePayloads :: [X.Element]+	}+	deriving (Show)++instance Stanza Presence where+	stanzaTo = presenceTo+	stanzaFrom = presenceFrom+	stanzaID = presenceID+	stanzaLang = presenceLang+	stanzaPayloads = presencePayloads+	stanzaToElement x = stanzaToElement' x "presence" typeStr where+		typeStr = case presenceType x of+			PresenceAvailable -> ""+			PresenceUnavailable -> "unavailable"+			PresenceSubscribe -> "subscribe"+			PresenceSubscribed -> "subscribed"+			PresenceUnsubscribe -> "unsubscribe"+			PresenceUnsubscribed -> "unsubscribed"+			PresenceProbe -> "probe"+			PresenceError -> "error"++data PresenceType+	= PresenceAvailable+	| PresenceUnavailable+	| PresenceSubscribe+	| PresenceSubscribed+	| PresenceUnsubscribe+	| PresenceUnsubscribed+	| PresenceProbe+	| PresenceError+	deriving (Show, Eq)++emptyPresence :: PresenceType -> Presence+emptyPresence t = Presence+	{ presenceType = t+	, presenceTo = Nothing+	, presenceFrom = Nothing+	, presenceID = Nothing+	, presenceLang = Nothing+	, presencePayloads = []+	}++data IQ = IQ+	{ iqType    :: IQType+	, iqTo      :: Maybe JID+	, iqFrom    :: Maybe JID+	, iqID      :: Maybe Text+	, iqLang    :: Maybe Text+	, iqPayload :: Maybe X.Element+	}+	deriving (Show)++instance Stanza IQ where+	stanzaTo = iqTo+	stanzaFrom = iqFrom+	stanzaID = iqID+	stanzaLang = iqLang+	stanzaPayloads iq = case iqPayload iq of+		Just elemt -> [elemt]+		Nothing -> []+	stanzaToElement x = stanzaToElement' x "iq" typeStr where+		typeStr = case iqType x of+			IQGet -> "get"+			IQSet -> "set"+			IQResult -> "result"+			IQError -> "error"++data IQType+	= IQGet+	| IQSet+	| IQResult+	| IQError+	deriving (Show, Eq)++emptyIQ :: IQType -> IQ+emptyIQ t = IQ+	{ iqType = t+	, iqTo = Nothing+	, iqFrom = Nothing+	, iqID = Nothing+	, iqLang = Nothing+	, iqPayload = Nothing+	}++stanzaToElement' :: Stanza a => a -> X.Name -> Text -> X.Element+stanzaToElement' stanza name typeStr = X.element name attrs payloads where+	payloads = map X.NodeElement (stanzaPayloads stanza)+	attrs = concat+		[ mattr "to" (fmap formatJID . stanzaTo)+		, mattr "from" (fmap formatJID . stanzaFrom)+		, mattr "id" stanzaID+		, mattr "xml:lang" stanzaLang+		, if Data.Text.null typeStr then [] else [("type", typeStr)]+		]+	mattr label f = case f stanza of+		Nothing -> []+		Just text -> [(label, text)]++elementToStanza :: Text -> X.Element -> Maybe ReceivedStanza+elementToStanza ns elemt = do+	let elemNS = X.nameNamespace (X.elementName elemt)+	when (elemNS /= Just ns) Nothing+	+	let elemName = X.nameLocalName (X.elementName elemt)+	case elemName of+		"message" -> ReceivedMessage `fmap` parseMessage elemt+		"presence" -> ReceivedPresence `fmap` parsePresence elemt+		"iq" -> ReceivedIQ `fmap` parseIQ elemt+		_ -> Nothing++parseMessage :: X.Element -> Maybe Message+parseMessage elemt = do+	typeStr <- X.attributeText "type" elemt+	msgType <- case typeStr of+		"normal"    -> Just MessageNormal+		"chat"      -> Just MessageChat+		"groupchat" -> Just MessageGroupChat+		"headline"  -> Just MessageHeadline+		"error"     -> Just MessageError+		_           -> Nothing+	msgTo <- xmlJID "to" elemt+	msgFrom <- xmlJID "from" elemt+	let msgID = X.attributeText "id" elemt+	let msgLang = X.attributeText "lang" elemt+	let payloads = X.elementChildren elemt+	return (Message msgType msgTo msgFrom msgID msgLang payloads)++parsePresence :: X.Element -> Maybe Presence+parsePresence elemt = do+	let typeStr = maybe "" id (X.attributeText "type" elemt)+	pType <- case typeStr of+		""             -> Just PresenceAvailable+		"unavailable"  -> Just PresenceUnavailable+		"subscribe"    -> Just PresenceSubscribe+		"subscribed"   -> Just PresenceSubscribed+		"unsubscribe"  -> Just PresenceUnsubscribe+		"unsubscribed" -> Just PresenceUnsubscribed+		"probe"        -> Just PresenceProbe+		"error"        -> Just PresenceError+		_              -> Nothing+		+	msgTo <- xmlJID "to" elemt+	msgFrom <- xmlJID "from" elemt+	let msgID = X.attributeText "id" elemt+	let msgLang = X.attributeText "lang" elemt+	let payloads = X.elementChildren elemt+	return (Presence pType msgTo msgFrom msgID msgLang payloads)++parseIQ :: X.Element -> Maybe IQ+parseIQ elemt = do+	typeStr <- X.attributeText "type" elemt+	iqType <- case typeStr of+		"get"    -> Just IQGet+		"set"    -> Just IQSet+		"result" -> Just IQResult+		"error"  -> Just IQError+		_        -> Nothing+	+	msgTo <- xmlJID "to" elemt+	msgFrom <- xmlJID "from" elemt+	let msgID = X.attributeText "id" elemt+	let msgLang = X.attributeText "lang" elemt+	let payload = case X.elementChildren elemt of+		[] -> Nothing+		child:_ -> Just child+	return (IQ iqType msgTo msgFrom msgID msgLang payload)++xmlJID :: X.Name -> X.Element -> Maybe (Maybe JID)+xmlJID name elemt = case X.attributeText name elemt of+	Nothing -> Just Nothing+	Just raw -> case parseJID raw of+		Just jid -> Just (Just jid)+		Nothing -> Nothing
+ lib/Network/Protocol/XMPP/XML.hs view
@@ -0,0 +1,186 @@+{-# LANGUAGE OverloadedStrings #-}++-- Copyright (C) 2010-2011 John Millikin <jmillikin@gmail.com>+-- +-- This program is free software: you can redistribute it and/or modify+-- it under the terms of the GNU General Public License as published by+-- the Free Software Foundation, either version 3 of the License, or+-- any later version.+-- +-- This program is distributed in the hope that it will be useful,+-- but WITHOUT ANY WARRANTY; without even the implied warranty of+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+-- GNU General Public License for more details.+-- +-- You should have received a copy of the GNU General Public License+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.++module Network.Protocol.XMPP.XML+	( module Data.XML.Types+	+	-- * Constructors+	, element+	+	-- * Misc+	, contentText+	, escape+	, serialiseElement+	, readEvents+	+	-- * libxml-sax-0.4 API imitation+	, Parser+	, newParser+	, parse+	, eventsToElement+	+	) where++import           Control.Monad (when)+import           Data.ByteString (ByteString)+import qualified Data.Text+import           Data.Text (Text)+import           Data.XML.Types+import           Data.IORef (IORef, newIORef, readIORef, writeIORef)+import qualified Text.XML.LibXML.SAX as SAX++contentText :: Content -> Text+contentText (ContentText t) = t+contentText (ContentEntity e) = Data.Text.concat ["&", e, ";"]++escape :: Text -> Text+escape = Data.Text.concatMap escapeChar where+	escapeChar c = case c of+		'&' -> "&amp;"+		'<' -> "&lt;"+		'>' -> "&gt;"+		'"' -> "&quot;"+		'\'' -> "&apos;"+		_ -> Data.Text.singleton c++escapeContent :: Content -> Text+escapeContent (ContentText t) = escape t+escapeContent (ContentEntity e) = Data.Text.concat ["&", escape e, ";"]++element :: Name -> [(Name, Text)] -> [Node] -> Element+element name attrs children = Element name attrs' children where+	attrs' = map (uncurry mkattr) attrs++mkattr :: Name -> Text -> (Name, [Content])+mkattr n val = (n, [ContentText val])++-- A somewhat primitive serialisation function+--+-- TODO: better namespace / prefix handling+serialiseElement :: Element -> Text+serialiseElement e = text where+	text = Data.Text.concat ["<", eName, " ", attrs, ">", contents, "</", eName, ">"]+	eName = formatName (elementName e)+	formatName = escape . nameLocalName+	attrs = Data.Text.intercalate " " (map attr (elementAttributes e ++ nsattr))+	attr (n, c) = Data.Text.concat ([formatName n, "=\""] ++ map escapeContent c ++ ["\""])+	nsattr = case nameNamespace $ elementName e of+		Nothing -> []+		Just ns -> [mkattr "xmlns" ns]+	contents = Data.Text.concat (map serialiseNode (elementNodes e))+	+	serialiseNode (NodeElement e') = serialiseElement e'+	serialiseNode (NodeContent c) = escape (contentText c)+	serialiseNode (NodeComment _) = ""+	serialiseNode (NodeInstruction _) = ""++-- quick-and-dirty imitation of libxml-sax-0.4 API; later, this should+-- probably be rewritten to use ST and discard the list parsing+data Parser = Parser (SAX.Parser IO) (IORef (Either Text [Event]))++newParser :: IO Parser+newParser = do+	ref <- newIORef (Right [])+	p <- SAX.newParserIO Nothing+	+	let addEvent e = do+		x <- readIORef ref+		case x of+			Left _ -> return ()+			Right es -> writeIORef ref (Right (e:es))+		return True+	+	SAX.setCallback p SAX.parsedBeginElement (\name attrs -> addEvent (EventBeginElement name attrs))+	SAX.setCallback p SAX.parsedEndElement (addEvent . EventEndElement)+	SAX.setCallback p SAX.parsedCharacters (addEvent . EventContent . ContentText)+	SAX.setCallback p SAX.parsedComment (addEvent . EventComment)+	SAX.setCallback p SAX.parsedInstruction (addEvent . EventInstruction)+	SAX.setCallback p SAX.reportError (\err -> writeIORef ref (Left err) >> return False)+	+	return (Parser p ref)++parse :: Parser -> ByteString -> Bool -> IO (Either Text [Event])+parse (Parser p ref) bytes finish = do+	writeIORef ref (Right [])+	SAX.parseBytes p bytes+	when finish (SAX.parseComplete p)+	eitherEvents <- readIORef ref+	return $ case eitherEvents of+		Left err -> Left err+		Right events -> Right (reverse events)++readEvents :: Monad m+           => (Integer -> Event -> Bool)+           -> m [Event]+           -> m [Event]+readEvents done nextEvents = readEvents' 0 [] where+	readEvents' depth acc = do+		events <- nextEvents+		let (done', depth', acc') = step events depth acc+		if done'+			then return acc'+			else readEvents' depth' acc'+	+	step [] depth acc = (False, depth, acc)+	step (e:es) depth acc = let+		depth' = depth + case e of+			(EventBeginElement _ _) -> 1+			(EventEndElement _) -> (- 1)+			_ -> 0+		acc' = e : acc+		in if done depth' e+			then (True, depth', reverse acc')+			else step es depth' acc'++-- | Convert a list of events to a single 'Element'. If the events do not+-- contain at least one valid element, 'Nothing' will be returned instead.+eventsToElement :: [Event] -> Maybe Element+eventsToElement es = case eventsToNodes es >>= isElement of+	(e:_) -> Just e+	_ -> Nothing++eventsToNodes :: [Event] -> [Node]+eventsToNodes = concatMap blockToNodes . splitBlocks++-- Split event list into a sequence of "blocks", which are the events including+-- and between a pair of tags. <start><start2/></start> and <start/> are both+-- single blocks.+splitBlocks :: [Event] -> [[Event]]+splitBlocks es = ret where+	(_, _, ret) = foldl splitBlocks' (0, [], []) es+	+	splitBlocks' (depth, accum, allAccum) e = split where+		split = if depth' == 0+			then (depth', [], allAccum ++ [accum'])+			else (depth', accum', allAccum)+		accum' = accum ++ [e]+		depth' :: Integer+		depth' = depth + case e of+			(EventBeginElement _ _) -> 1+			(EventEndElement _) -> (- 1)+			_ -> 0++blockToNodes :: [Event] -> [Node]+blockToNodes [] = []+blockToNodes (begin:rest) = nodes where+	end = last rest+	nodes = case (begin, end) of+		(EventBeginElement name attrs, EventEndElement _) -> [node name attrs]+		(EventContent c, _) -> [NodeContent c]+		_ -> []+	+	node n as = NodeElement (Element n as (eventsToNodes (init rest)))
+ license.txt view
@@ -0,0 +1,674 @@+                    GNU GENERAL PUBLIC LICENSE+                       Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++                            Preamble++  The GNU General Public License is a free, copyleft license for+software and other kinds of works.++  The licenses for most software and other practical works are designed+to take away your freedom to share and change the works.  By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users.  We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors.  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Interpretation of Sections 15 and 16.++  If the disclaimer of warranty and limitation of liability provided+above cannot be given local legal effect according to their terms,+reviewing courts shall apply local law that most closely approximates+an absolute waiver of all civil liability in connection with the+Program, unless a warranty or assumption of liability accompanies a+copy of the Program in return for a fee.++                     END OF TERMS AND CONDITIONS++            How to Apply These Terms to Your New Programs++  If you develop a new program, and you want it to be of the greatest+possible use to the public, the best way to achieve this is to make it+free software which everyone can redistribute and change under these terms.++  To do so, attach the following notices to the program.  It is safest+to attach them to the start of each source file to most effectively+state the exclusion of warranty; and each file should have at least+the "copyright" line and a pointer to where the full notice is found.++    <one line to give the program's name and a brief idea of what it does.>+    Copyright (C) <year>  <name of author>++    This program is free software: you can redistribute it and/or modify+    it under the terms of the GNU General Public License as published by+    the Free Software Foundation, either version 3 of the License, or+    (at your option) any later version.++    This program is distributed in the hope that it will be useful,+    but WITHOUT ANY WARRANTY; without even the implied warranty of+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+    GNU General Public License for more details.++    You should have received a copy of the GNU General Public License+    along with this program.  If not, see <http://www.gnu.org/licenses/>.++Also add information on how to contact you by electronic and paper mail.++  If the program does terminal interaction, make it output a short+notice like this when it starts in an interactive mode:++    <program>  Copyright (C) <year>  <name of author>+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+    This is free software, and you are welcome to redistribute it+    under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License.  Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++  You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++  The GNU General Public License does not permit incorporating your program+into proprietary programs.  If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library.  If this is what you want to do, use the GNU Lesser General+Public License instead of this License.  But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
network-protocol-xmpp.cabal view
@@ -1,28 +1,34 @@ name: network-protocol-xmpp-version: 0.4-synopsis: Client->Server XMPP+version: 0.4.1 license: GPL-3-license-file: License.txt-author: John Millikin <jmillikin@gmail.com>-        Stephan Maka  <stephan@spaceboyz.net>-maintainer: jmillikin@gmail.com+license-file: license.txt+author: John Millikin <jmillikin@gmail.com>, Stephan Maka <stephan@spaceboyz.net>+maintainer: John Millikin <jmillikin@gmail.com> build-type: Simple-cabal-version: >=1.6+cabal-version: >= 1.6 category: Network stability: experimental+homepage: https://john-millikin.com/software/haskell-xmpp/ bug-reports: mailto:jmillikin@gmail.com-homepage: https://john-millikin.com/software/hs-xmpp/-tested-with: GHC==6.12.1 +synopsis: Client library for the XMPP protocol.+description:+ source-repository head   type: bazaar-  location: https://john-millikin.com/software/hs-xmpp/+  location: https://john-millikin.com/branches/network-protocol-xmpp/0.4/ +source-repository this+  type: bazaar+  location: https://john-millikin.com/branches/network-protocol-xmpp/0.4/+  tag: network-protocol-xmpp_0.4.1+ library-  ghc-options: -Wall+  ghc-options: -Wall -O2+  hs-source-dirs: lib    build-depends:-      base >= 3 && < 5+      base >= 4.0 && < 5.0     , text >= 0.10 && < 0.12     , gnuidn >= 0.2 && < 0.3     , gnutls >= 0.1 && < 0.3