network-protocol-xmpp-0.4.4/0000755000000000000000000000000012043300741014211 5ustar0000000000000000network-protocol-xmpp-0.4.4/Setup.hs0000644000000000000000000000005612043300741015646 0ustar0000000000000000import Distribution.Simple main = defaultMain network-protocol-xmpp-0.4.4/license.txt0000644000000000000000000010451312043300741016400 0ustar0000000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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. 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But first, please read . network-protocol-xmpp-0.4.4/network-protocol-xmpp.cabal0000644000000000000000000000302512043300741021507 0ustar0000000000000000name: network-protocol-xmpp version: 0.4.4 license: GPL-3 license-file: license.txt author: John Millikin , Stephan Maka maintainer: John Millikin build-type: Simple cabal-version: >= 1.6 category: Network stability: experimental homepage: https://john-millikin.com/software/haskell-xmpp/ bug-reports: mailto:jmillikin@gmail.com synopsis: Client library for the XMPP protocol. description: source-repository head type: bazaar 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_0.4.4 library ghc-options: -Wall -O2 hs-source-dirs: lib build-depends: base >= 4.0 && < 5.0 , bytestring >= 0.9 , gnuidn >= 0.2 && < 0.3 , gnutls >= 0.1.4 && < 0.3 , gsasl >= 0.3 && < 0.4 , libxml-sax >= 0.7 && < 0.8 , monads-tf >= 0.1 && < 0.2 , network >= 2.2 , text >= 0.10 && < 0.12 , transformers >= 0.2 , xml-types >= 0.3 && < 0.4 exposed-modules: Network.Protocol.XMPP other-modules: Network.Protocol.XMPP.Client Network.Protocol.XMPP.Client.Authentication Network.Protocol.XMPP.Client.Features Network.Protocol.XMPP.Component Network.Protocol.XMPP.Connections Network.Protocol.XMPP.ErrorT Network.Protocol.XMPP.Handle Network.Protocol.XMPP.JID Network.Protocol.XMPP.Monad Network.Protocol.XMPP.Stanza Network.Protocol.XMPP.XML network-protocol-xmpp-0.4.4/lib/0000755000000000000000000000000012043300741014757 5ustar0000000000000000network-protocol-xmpp-0.4.4/lib/Network/0000755000000000000000000000000012043300741016410 5ustar0000000000000000network-protocol-xmpp-0.4.4/lib/Network/Protocol/0000755000000000000000000000000012043300741020211 5ustar0000000000000000network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP.hs0000644000000000000000000000313312043300741021331 0ustar0000000000000000-- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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 , sessionIsSecure , 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-0.4.4/lib/Network/Protocol/XMPP/0000755000000000000000000000000012043300741020775 5ustar0000000000000000network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/Component.hs0000644000000000000000000000622212043300741023275 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010 Stephan Maka -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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-0.4.4/lib/Network/Protocol/XMPP/Monad.hs0000644000000000000000000001302112043300741022364 0ustar0000000000000000{-# LANGUAGE TypeFamilies #-} {-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . module Network.Protocol.XMPP.Monad ( XMPP (..) , Error (..) , Session (..) , runXMPP , startXMPP , restartXMPP , getHandle , getSession , sessionIsSecure , 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 sessionIsSecure :: XMPP Bool sessionIsSecure = do h <- getHandle return (H.handleIsSecure h) 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-0.4.4/lib/Network/Protocol/XMPP/Connections.hs0000644000000000000000000000372712043300741023624 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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 [ "\n" , "" ] 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-0.4.4/lib/Network/Protocol/XMPP/XML.hs0000644000000000000000000001360212043300741021773 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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 '&' -> "&" '<' -> "<" '>' -> ">" '"' -> """ '\'' -> "'" _ -> 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 = 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. and 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))) network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/Handle.hs0000644000000000000000000000525212043300741022530 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . module Network.Protocol.XMPP.Handle ( Handle (..) , startTLS , hPutBytes , hGetBytes , handleIsSecure ) 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)) handleIsSecure :: Handle -> Bool handleIsSecure PlainHandle{} = False handleIsSecure SecureHandle{} = True network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/Stanza.hs0000644000000000000000000001664612043300741022606 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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-0.4.4/lib/Network/Protocol/XMPP/ErrorT.hs0000644000000000000000000000464312043300741022555 0ustar0000000000000000{-# LANGUAGE TypeFamilies #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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)) network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/JID.hs0000644000000000000000000000661312043300741021745 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE CPP #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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-0.4.4/lib/Network/Protocol/XMPP/Client.hs0000644000000000000000000001151312043300741022550 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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 @\@ 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-0.4.4/lib/Network/Protocol/XMPP/Client/0000755000000000000000000000000012043300741022213 5ustar0000000000000000network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/Client/Authentication.hs0000644000000000000000000001274112043300741025533 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE DeriveDataTypeable #-} -- Copyright (C) 2009-2011 John Millikin -- -- 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 . 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 (show err) saslLoop :: M.Session -> SASL.Session Result saslLoop ctx = do e <- getElement ctx let challengeTexts = X.elementNodes e >>= X.isContent >>= return . X.contentText let challenge = concatMap Data.Text.unpack challengeTexts case X.elementName e of -- The server needs more data before it can authenticate this client. n | n == "{urn:ietf:params:xml:ns:xmpp-sasl}challenge" -> do when (null challenge) (saslError "Received empty challenge") (b64text, rc) <- SASL.step64 (Data.ByteString.Char8.pack challenge) 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 -- The server has authenticated this client, but the client-side -- SASL protocol wants more data from the server. n | n == "{urn:ietf:params:xml:ns:xmpp-sasl}success" -> do when (null challenge) (saslError "Received empty challenge") (_, rc) <- SASL.step64 (Data.ByteString.Char8.pack challenge) case rc of SASL.Complete -> return Success SASL.NeedsMore -> saslError "Server didn't provide enough SASL data." -- The server has rejected this client's credentials. n | n == "{urn:ietf:params:xml:ns:xmpp-sasl}failure" -> return Failure _ -> saslError ("Server sent unexpected element during authentication.") saslFinish :: M.Session -> SASL.Session Result saslFinish ctx = do elemt <- getElement ctx return $ if X.elementName elemt == "{urn:ietf:params:xml:ns:xmpp-sasl}success" then Success else Failure 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 => String -> m a saslError = liftIO . Exc.throwIO . SaslError . Data.Text.pack network-protocol-xmpp-0.4.4/lib/Network/Protocol/XMPP/Client/Features.hs0000644000000000000000000000463112043300741024331 0ustar0000000000000000{-# LANGUAGE OverloadedStrings #-} -- Copyright (C) 2010-2011 John Millikin -- -- 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 . 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"