1 {- offlineimap component
2 Copyright (C) 2008 John Goerzen <jgoerzen@complete.org>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 module Network.IMAP.Parser where
20 import Text.ParserCombinators.Parsec
21 import Network.IMAP.Types
22 import Text.Regex.Posix
26 import Network.IMAP.Parser.Prim
28 {- | Read a full response from the server. -}
29 readFullResponse :: Monad m =>
30 IMAPConnection m -> -- ^ The connection to the server
32 readFullResponse conn =
34 where accumLines accum =
35 do line <- getFullLine [] conn
36 if "* " `isPrefixOf` line
37 then accumLines (accum ++ line ++ "\r\n")
38 else return (accum ++ line ++ "\r\n")
40 {- | Read a full line from the server, handling any continuation stuff.
42 If a {x}\r\n occurs, then that string (including the \r\n) will occur
43 literally in the result, followed by the literal read, and the rest of the
47 getFullLine :: Monad m =>
48 IMAPString -> -- ^ The accumulator (empty for first call)
49 IMAPConnection m -> -- ^ IMAP connection
50 m IMAPString -- ^ Result
52 getFullLine accum conn =
53 do input <- readLine conn
54 case checkContinuation input of
55 Nothing -> return (accum ++ input)
57 do literal <- readBytes conn size
58 getFullLine (accum ++ input ++ "\r\n" ++ literal) conn
59 where checkContinuation :: String -> Maybe Int64
61 case i =~ "\\{([0-9]+)\\}$" :: (String, String, String, [String]) of
62 (_, _, _, [x]) -> Just (read x)
65 ----------------------------------------------------------------------
67 ----------------------------------------------------------------------
69 {- | Returns Left for a "BYE" response, or Right if we are ready to
70 proceed with auth (or preauth). -}
71 greeting :: IMAPParser (Either RespText (AuthReady, RespText))
74 (respCondBye >>= return . Left) <|>
75 (respCondAuth >>= return . Right)
77 data AuthReady = AUTHOK | AUTHPREAUTH
78 deriving (Eq, Read, Show)
80 data RespText = RespText {respTextCode :: Maybe String,
81 respTextMsg :: String}
82 deriving (Eq, Read, Show)
84 respCondAuth :: IMAPParser (AuthReady, RespText)
86 do s <- (string "OK" >> return AUTHOK) <|>
87 (string "PREAUTH" >> return AUTHPREAUTH)
92 respCondBye :: IMAPParser RespText
97 -- Less strict than mandated in RFC3501 formal syntax
98 respText :: IMAPParser RespText
100 do code <- optionMaybe respTextCode
102 return $ RespText code t
106 b <- option "" (sp >> respTextCodeText)
109 return (a ++ " " ++ b)
110 respTextCodeText = many1 (noneOf (']' : crlf))