diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -0,0 +1,8 @@ +Copyright (c) 2007 Galois Inc +Copyright (c) 2009 Iavor S. Diatchki + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Network/HTTP/Server.hs b/Network/HTTP/Server.hs new file mode 100644 --- /dev/null +++ b/Network/HTTP/Server.hs @@ -0,0 +1,186 @@ +-------------------------------------------------------------------------------- +-- | +-- Module : Network.HTTP.Server +-- Copyright : (c) Galois, Inc. 2007, 2008 +-- License : BSD3 +-- +-- Maintainer : diatchki@galois.com +-- Stability : provisional +-- Portability : +-- + +module Network.HTTP.Server + ( server, serverWith, Handler + , Config(..), defaultConfig + , Request(..), Response(..), RequestMethod(..) + , module Network.HTTP.Headers + , module Network.HTTP.Server.Response + ) where + +import Network.HTTP.Server.Utils +import Network.HTTP.Server.Logger +import Network.HTTP.Server.Response + +import Prelude hiding (catch) +#ifdef _OS_UNIX +import qualified System.Posix.Signals as P + (installHandler,sigPIPE,Handler(Ignore)) +#endif +import Network.Socket +import Network.BSD +import Network.HTTP +import Network.HTTP.Headers -- for re-export above +import Network.URI +import Network.URL +import Control.Concurrent(forkIO) +import Control.Exception(catch,SomeException) +import Data.Maybe(fromMaybe) + + +-- XXX: Add timeouts to close lingering connections + +-- | Server configuration. +data Config = Config + { srvLog :: Logger -- ^ Server reports what's going on here. + , srvHost :: HostName -- ^ Host name to bind to. + , srvPort :: PortNumber -- ^ Port to listen on. + } + + +-- | Some default options for a server: +-- no logging output, listen on \"localhost:8000\". +defaultConfig :: Config +defaultConfig = Config + { srvLog = quietLogger + , srvHost = "localhost" + , srvPort = 8000 + } + + + + + +-- Note: See http://www.haskell.org/ghc/docs/latest/html/libraries/network-2.1.0.0/Network.html#10 for details ob the sigPIPE handler. +server_init :: Config -> IO Socket +server_init conf = withSocketsDo $ + do +#ifdef _OS_UNIX + P.installHandler P.sigPIPE P.Ignore Nothing +#endif + let host_name = srvHost conf + lg = srvLog conf + port_num = srvPort conf + hst <- getHostByName host_name + s <- socket (hostFamily hst) Stream =<< getProtocolNumber "TCP" + setSocketOption s ReuseAddr 1 -- socket level 1 (?) + case hostAddresses hst of + h : _ -> bindSocket s (SockAddrInet port_num h) + _ -> ioError (userError ("Could not resolve host address for: " + ++ host_name)) + listen s sOMAXCONN + + logInfo lg 0 ("Listening on " ++ host_name ++ ":" ++ show port_num) + return s + +-- | Handlers invoked to process requests. +-- The type parameter is for the type of the payload in the body. +-- It is a variation on string of some sort (e.g., String, ByteString, etc.) +type Handler a = SockAddr -> URL -> Request a -> IO (Response a) + +-- | Start a server with the default configureation, and the given handler. +-- Requests are handled in separete threads. +server :: HStream a => Handler a -> IO () +server = serverWith defaultConfig + +-- | Start a server with the given configuration and handler. +-- Requests are handled in separete threads. +serverWith :: HStream a => Config -> Handler a -> IO () +serverWith conf handler = withSocketsDo $ + do s <- server_init conf + loop s `catch` \e -> + logError lg ("Unexpected (0): " ++ show (e :: SomeException)) + sClose s + where + lg = srvLog conf + + loop s = do (client_sock,sock_addr) <- accept s + forkIO (client client_sock sock_addr) + loop s + + -- get_request :: HandleStream a -> IO (Maybe (URL, Request a)) + get_request sock = + do mbreq <- receiveHTTP sock + case mbreq of + Left err -> logError lg (show err) >> return Nothing + Right req -> + let url_txt = show (rqURI req) + in case importURL url_txt of + Just url -> return (Just (url,req)) + Nothing -> + do logError lg ("Invalid URL: " ++ url_txt) + return Nothing + + + client sock addr = + do let name = ppSockAddr addr "" + logInfo lg 0 ("Accepted connection from " ++ name) + conn <- socketConnection name sock -- XXX: name? + setStreamHooks conn nullHooks { hook_close = + logInfo lg 0 ("Closing connection to " ++ ppSockAddr addr "") + } + client_interact addr conn + + + -- client_interact :: SockAddr -> HandleStream a -> IO () + client_interact addr conn = + do mbreq <- get_request conn + resp <- case mbreq of + Just (url,req) -> do + auth <- authorityToAuth `fmap` getAuth req + handler addr url req { rqURI = (rqURI req) { + uriScheme = "http:" + , uriAuthority = Just auth + } + } + `catch` \e -> + do logError lg ("Unexpected (1): " + ++ show (e :: SomeException)) + return (err_response InternalServerError) + Nothing -> return (err_response BadRequest) + + let resp1 = fromMaybe resp + $ do (_,rq) <- mbreq + "close" <- findHeader HdrConnection rq + return (insertHeaderIfMissing HdrConnection "close" resp) + closing = case findHeader HdrConnection resp1 of + Just "close" -> True + _ -> False +{- + msg_len = length (rspBody resp1) + resp2 = insertHeaderIfMissing HdrContentLength + (show msg_len) resp1 +-} + resp2 = resp1 + resp3 = insertHeaderIfMissing HdrServer + "Haskell HTTP Server" resp2 + + respondHTTP conn resp3 + if closing + then do close conn + logInfo lg 0 ("Closed connection to " ++ ppSockAddr addr "") + else client_interact addr conn + + +authorityToAuth :: URIAuthority -> URIAuth +authorityToAuth a = + URIAuth { uriUserInfo = info + , uriRegName = Network.HTTP.host a + , uriPort = maybe "" ((':':).show) (Network.HTTP.port a) + } + where + info = case (user a, password a) of + (Just x, Just y) -> x ++ ":" ++ y + (Just x, Nothing) -> x + _ -> "" + + diff --git a/Network/HTTP/Server/HtmlForm.hs b/Network/HTTP/Server/HtmlForm.hs new file mode 100644 --- /dev/null +++ b/Network/HTTP/Server/HtmlForm.hs @@ -0,0 +1,76 @@ +-------------------------------------------------------------------------------- +-- | +-- Module : Network.HTTP.Server.HtmlForm +-- Copyright : (c) Galois, Inc. 2007, 2008 +-- License : BSD3 +-- +-- Maintainer : diatchki@galois.com +-- Stability : provisional +-- Portability : +-- + +module Network.HTTP.Server.HtmlForm + ( FormFields + , fieldNames, hasField + , lookupString, lookupRead + , toList + , fromRequest + ) where + +import Codec.MIME.Parse +import Codec.MIME.Type +import Network.HTTP +import Codec.Binary.UTF8.String as UTF8 +import Data.Char(isSpace) + +-- | An abstraction of a map mapping form fields to their values. +newtype FormFields = FF [(String,String)] deriving Show + +-- | The names of the fields that were posted. +fieldNames :: FormFields -> [String] +fieldNames (FF xs) = map fst xs + +-- | Do we have the given field? +hasField :: FormFields -> String -> Bool +hasField (FF xs) x = x `elem` map fst xs + +-- | Lookup a field value as a string. +lookupString :: FormFields -> String -> Maybe String +lookupString (FF xs) x = (drop_r . UTF8.decodeString) `fmap` lookup x xs + where drop_r ('\r' : '\n' : cs) = '\n' : drop_r cs + drop_r (c:cs) = c : drop_r cs + drop_r [] = [] + +-- | Lookup a field value and try to parse it. +lookupRead :: Read a => FormFields -> String -> Maybe a +lookupRead xs x = do y <- lookupString xs x + case reads y of + [(n,cs)] | all isSpace cs -> return n + _ -> Nothing + +-- | The fields as pairs of strings. +toList :: FormFields -> [(String,String)] +toList (FF xs) = xs + +-- | Try to parse the body of a request. +fromRequest :: Request String -> Maybe FormFields +fromRequest r = let mv = mime_request r + in case mimeType (mime_val_type mv) of + Multipart FormData -> Just (FF (toMap mv)) + _ -> Nothing + + where toMap mv = case mime_val_content mv of + Multi vs -> concatMap toMap vs + Single v -> [ (UTF8.decodeString k, v) + | k <- keys (mime_val_disp mv) ] + + -- XXX: should we check the type? + keys (Just x) = [ k | Name k <- dispParams x ] + keys Nothing = [] + +mime_request :: Request String -> MIMEValue +mime_request req + = let hdrs = map (\ (Header a b) -> (show a, b)) (rqHeaders req) + body = rqBody req + in parseMIMEBody hdrs body + diff --git a/Network/HTTP/Server/Logger.hs b/Network/HTTP/Server/Logger.hs new file mode 100644 --- /dev/null +++ b/Network/HTTP/Server/Logger.hs @@ -0,0 +1,96 @@ +-------------------------------------------------------------------------------- +-- | +-- Module : Network.HTTP.Server.Logger +-- Copyright : (c) Galois, Inc. 2007, 2008 +-- License : BSD3 +-- +-- Maintainer : diatchki@galois.com +-- Stability : provisional +-- Portability : +-- + +module Network.HTTP.Server.Logger + ( Logger(..) + , stdLogger, quietLogger, utf8Logger + , LogItem(..), LogType(..) + , showLogItem, readLogItem, filterLog + ) where + +import System.IO (Handle,stdout,stderr,hFlush) +import qualified System.IO.UTF8 as UTF8 (hPutStrLn) + +-- | A type used by the server to report various events. +-- Useful for debugging. +data Logger + = Logger + { logInfo :: Int -> String -> IO () + , logDebug :: String -> IO () + , logError :: String -> IO () + , logWarning :: String -> IO () + , getLog :: Maybe Int -- limit + -> (LogType -> Bool) -- which items + -> IO [LogItem] + } + +notSaved :: Maybe Int -> (LogType -> Bool) -> IO [LogItem] +notSaved l p = return $ filterLog l p + [LogItem Warning "Not saving the log"] + +-- | A logger that uses the standard output and standard error. +-- Text is UTF8 encoded. +stdLogger :: Logger +stdLogger = utf8Logger stdout stderr + +-- | A logger that does not report anything. +quietLogger :: Logger +quietLogger = + Logger + { logInfo = \ _ _ -> return () + , logDebug = \_ -> return () + , logError = \_ -> return () + , logWarning = \_ -> return () + , getLog = notSaved + } + +-- | A logger that uses the given handles for output and errors. +utf8Logger :: Handle -> Handle -> Logger +utf8Logger h hErr = + Logger + { logInfo = \ _lev s -> logUTF8 h (LogItem (Info _lev) s) + , logDebug = logUTF8 h . LogItem Debug + , logError = logUTF8 hErr . LogItem Error + , logWarning = logUTF8 hErr . LogItem Warning + , getLog = notSaved + } + +logUTF8 :: Handle -> LogItem -> IO () +logUTF8 h i = UTF8.hPutStrLn h (showLogItem i) >> hFlush h + + +data LogType = Error | Warning | Debug | Info Int deriving Show +data LogItem = LogItem { item_type :: LogType, item_data :: String } + +showLogItem :: LogItem -> String +showLogItem (LogItem t txt) = show t ++ ": " ++ txt + +readLogItem :: String -> Maybe LogItem +readLogItem l = + case break (':' ==) l of + ("Error",_:txt) -> Just $ LogItem Error txt + ("Warning",_:txt) -> Just $ LogItem Warning txt + ("Debug",_:txt) -> Just $ LogItem Debug txt + ('I':'n':'f':'o':' ':lvl,_:txt) -> + case reads lvl of + [(n,"")] -> Just $ LogItem (Info n) txt + _ -> Nothing + _ -> Nothing + +-- NOTE: always reads the whole file! +filterLog :: Maybe Int -> (LogType -> Bool) -> [LogItem] -> [LogItem] +filterLog limit choose ls = case limit of + Just n -> take n allItems + _ -> allItems + where allItems = filter (choose . item_type) ls + + + diff --git a/Network/HTTP/Server/Response.hs b/Network/HTTP/Server/Response.hs new file mode 100644 --- /dev/null +++ b/Network/HTTP/Server/Response.hs @@ -0,0 +1,72 @@ +-------------------------------------------------------------------------------- +-- | +-- Module : Network.HTTP.Server.Response +-- Copyright : (c) Galois, Inc. 2007, 2008 +-- License : BSD3 +-- +-- Maintainer : diatchki@galois.com +-- Stability : provisional +-- Portability : +-- + +module Network.HTTP.Server.Response where + +import Network.HTTP +import Network.BufferType + +-- | A list of status code. This not yet complete. +data StatusCode + = OK + | SeeOther + | BadRequest + | Forbidden + | NotFound + | Found + | Conflict + | InternalServerError + | NotImplemented + + + +-- | Make a simple response with the given staus and body. +-- Intended to be used for (bad) erros. +-- Adds a "close" header. +err_response :: BufferType a => StatusCode -> Response a +err_response code = insertHeader HdrConnection "close" (respond code) + +-- | Make a simple response with the given staus and body. +-- No headers or body. +respond :: BufferType a => StatusCode -> Response a +respond code = Response + { rspCode = statusCodeTriplet code + , rspReason = reason code + , rspHeaders = [] + , rspBody = buf_empty bufferOps + } + +-- | A brief description of what happend. +reason :: StatusCode -> String +reason code = case code of + OK -> "OK" + SeeOther -> "See other" + BadRequest -> "Bad request" + Conflict -> "Conflict" + Forbidden -> "Forbidden" + NotFound -> "Not found" + Found -> "Found" + InternalServerError -> "Internal server error" + NotImplemented -> "Not implemented" + +statusCodeTriplet :: StatusCode -> (Int,Int,Int) +statusCodeTriplet x = case x of + OK -> (2,0,0) + Found -> (3,0,2) + SeeOther -> (3,0,3) + BadRequest -> (4,0,0) + Forbidden -> (4,0,3) + NotFound -> (4,0,4) + Conflict -> (4,0,9) + InternalServerError -> (5,0,0) + NotImplemented -> (5,0,1) + + diff --git a/Network/HTTP/Server/Utils.hs b/Network/HTTP/Server/Utils.hs new file mode 100644 --- /dev/null +++ b/Network/HTTP/Server/Utils.hs @@ -0,0 +1,58 @@ +-------------------------------------------------------------------------------- +-- | +-- Module : Network.HTTP.Server.Utils +-- Copyright : (c) Galois, Inc. 2007, 2008 +-- License : BSD3 +-- +-- Maintainer : diatcki@galois.com +-- Stability : provisional +-- Portability : +-- + +module Network.HTTP.Server.Utils where + +import Network.Socket +import Data.Word +import Data.Bits +#ifdef _OS_UNIX +import Numeric +#endif + +byte :: (Bits a, Integral a) => a -> Int -> Word8 +byte w n = fromIntegral (w `shiftR` (n * 8)) + +word :: (Bits a, Integral a) => a -> Int -> Word16 +word w n = fromIntegral (w `shiftR` (n * 16)) + +ppHostAddress :: HostAddress -> ShowS +ppHostAddress w = shows (byte w 0) . showChar '.' . + shows (byte w 1) . showChar '.' . + shows (byte w 2) . showChar '.' . + shows (byte w 3) + +#if _OS_UNIX +-- XXX: Are the words in the correct order? +ppHostAddress6 :: HostAddress6 -> ShowS +ppHostAddress6 (w1,w2,w3,w4) = + showChar '[' . showHex (word w1 0) . + showChar ':' . showHex (word w1 1) . + showChar ':' . showHex (word w2 0) . + showChar ':' . showHex (word w2 1) . + showChar ':' . showHex (word w3 0) . + showChar ':' . showHex (word w3 1) . + showChar ':' . showHex (word w4 0) . + showChar ':' . showHex (word w4 1) . + showChar ']' +#endif + + +ppSockAddr :: SockAddr -> ShowS +ppSockAddr (SockAddrInet port addr) = ppHostAddress addr + . showChar ':' . shows port +#ifdef _OS_UNIX +ppSockAddr (SockAddrInet6 port _ addr _) = + ppHostAddress6 addr . showChar ':' . shows port +ppSockAddr (SockAddrUnix sock) = showString "unix/" . showString sock +#endif + + diff --git a/Setup.hs b/Setup.hs new file mode 100644 --- /dev/null +++ b/Setup.hs @@ -0,0 +1,3 @@ +import Distribution.Simple + +main = defaultMain diff --git a/example/LICENSE b/example/LICENSE new file mode 100644 --- /dev/null +++ b/example/LICENSE @@ -0,0 +1,7 @@ +Copyright (c) 2009 Iavor S. Diatchki + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/example/README b/example/README new file mode 100644 --- /dev/null +++ b/example/README @@ -0,0 +1,8 @@ +Here we have a simple server that demonstrates how one +could use the http-server library. + +NOTE: +The version of jQuery in this directory is used to illustrate how a +client may send ajax requests to the server. This is just for demo +purposes. We are using jQuery with its MIT license. + diff --git a/example/SimpleWeb.cabal b/example/SimpleWeb.cabal new file mode 100644 --- /dev/null +++ b/example/SimpleWeb.cabal @@ -0,0 +1,26 @@ +Name: SimpleWeb +Version: 0.1 +License: BSD3 +License-file: LICENSE +Author: Iavor S. Diatchki +Maintainer: diatchki@galois.com +Homepage: http://code.galois.com/ +Category: Network +Synopsis: An example of using the http-package +Description: An example of using the http-package +Build-type: Simple +Cabal-version: >= 1.2 + +Executable SimpleWeb + Main-is: SimpleWeb.hs + Build-depends: + base >= 4, + http-server >= 0.2, + filepath, + json, + xhtml, + utf8-string, + url >= 2.1 + GHC-options: -O -Wall + + diff --git a/example/SimpleWeb.hs b/example/SimpleWeb.hs new file mode 100644 --- /dev/null +++ b/example/SimpleWeb.hs @@ -0,0 +1,100 @@ +import Network.HTTP.Server +import Network.HTTP.Server.Logger +import Network.HTTP.Server.HtmlForm as Form +import Network.URL as URL +import Text.JSON +import Text.JSON.String(runGetJSON) +import Text.XHtml +import Codec.Binary.UTF8.String +import Control.Exception(try,SomeException) +import System.FilePath +import Data.List(isPrefixOf) + +main :: IO () +main = serverWith defaultConfig { srvLog = stdLogger, srvPort = 8888 } + $ \_ url request -> + + case rqMethod request of + + GET -> + do let ext = takeExtension (url_path url) + mb_txt <- try (readFile (url_path url)) + case mb_txt of + Right a -> return $ if ext == ".html" + then sendHTML OK (primHtml a) + else sendScript OK a + Left e -> return $ sendHTML NotFound $ + thehtml $ concatHtml + [ thead noHtml + , body $ concatHtml + [ toHtml "I could not find" + , toHtml (url_path url) + , toHtml ", so I made this with xhtml combinators. " + , toHtml $ hotlink "example.html" (toHtml "Try this.") + ] + ] + + where _hack :: SomeException + _hack = e -- to specify the type + + + POST -> + return $ + case findHeader HdrContentType request of + Just ty + | "application/x-www-form-urlencoded" `isPrefixOf` ty -> + case URL.importParams txt of + Just fields -> sendHTML OK $ + toHtml "You posted a URL encoded form:" +++ br +++ + toHtml (show fields) +++ br +++ + hotlink "example.html" (toHtml "back") + Nothing -> sendHTML BadRequest $ + toHtml "Could not understand URL encoded form data" + + | "multipart/form-data" `isPrefixOf` ty -> + case Form.fromRequest request of + Just fields -> sendHTML OK $ + toHtml "You posted a multipart form:" +++ br +++ + toHtml (show (Form.toList fields)) +++ br +++ + hotlink "example.html" (toHtml "back") + Nothing -> sendHTML BadRequest $ + toHtml "Could not understand multipart form data" + + | "application/json" `isPrefixOf` ty -> + case runGetJSON readJSValue txt of + Right val -> sendJSON OK $ + JSObject $ toJSObject [("success", JSString $ toJSString "hello")] + Left err -> sendJSON BadRequest $ + JSObject $ toJSObject [("error", JSString $ toJSString err)] + + x -> sendHTML BadRequest $ + toHtml $ "I don't know how to deal with POSTed content" ++ + " of type " ++ show x + + -- we assume UTF8 encoding + where txt = decodeString (rqBody request) + + _ -> return $ sendHTML BadRequest $ toHtml "I don't understand" + + + +sendText :: StatusCode -> String -> Response String +sendText s v = insertHeader HdrContentLength (show (length txt)) + $ insertHeader HdrContentEncoding "UTF-8" + $ insertHeader HdrContentEncoding "text/plain" + $ (respond s :: Response String) { rspBody = txt } + where txt = encodeString v + +sendJSON :: StatusCode -> JSValue -> Response String +sendJSON s v = insertHeader HdrContentType "application/json" + $ sendText s (showJSValue v "") + +sendHTML :: StatusCode -> Html -> Response String +sendHTML s v = insertHeader HdrContentType "text/html" + $ sendText s (renderHtml v) + +sendScript :: StatusCode -> String -> Response String +sendScript s v = insertHeader HdrContentType "application/x-javascript" + $ sendText s v + + diff --git a/example/jquery.js b/example/jquery.js new file mode 100644 --- /dev/null +++ b/example/jquery.js @@ -0,0 +1,19 @@ +/* + * jQuery JavaScript Library v1.3.2 + * http://jquery.com/ + * + * Copyright (c) 2009 John Resig + * Dual licensed under the MIT and GPL licenses. + * http://docs.jquery.com/License + * + * Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009) + * Revision: 6246 + */ +(function(){var l=this,g,y=l.jQuery,p=l.$,o=l.jQuery=l.$=function(E,F){return new o.fn.init(E,F)},D=/^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,f=/^.[^:#\[\.,]*$/;o.fn=o.prototype={init:function(E,H){E=E||document;if(E.nodeType){this[0]=E;this.length=1;this.context=E;return this}if(typeof E==="string"){var G=D.exec(E);if(G&&(G[1]||!H)){if(G[1]){E=o.clean([G[1]],H)}else{var I=document.getElementById(G[3]);if(I&&I.id!=G[3]){return o().find(E)}var F=o(I||[]);F.context=document;F.selector=E;return F}}else{return o(H).find(E)}}else{if(o.isFunction(E)){return o(document).ready(E)}}if(E.selector&&E.context){this.selector=E.selector;this.context=E.context}return this.setArray(o.isArray(E)?E:o.makeArray(E))},selector:"",jquery:"1.3.2",size:function(){return this.length},get:function(E){return E===g?Array.prototype.slice.call(this):this[E]},pushStack:function(F,H,E){var G=o(F);G.prevObject=this;G.context=this.context;if(H==="find"){G.selector=this.selector+(this.selector?" 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