+-- SPDX-FileCopyrightText: 2022 Frank Doepper
+--
+-- SPDX-License-Identifier: GPL-3.0-only
+
+{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
-import Paths_amqp_utils ( version )
-import Data.Version ( showVersion )
-import System.Environment
-import qualified Data.Text as T
+-- generic AMQP publisher
+import Control.Concurrent
+import qualified Control.Exception as X
+import Control.Monad (forM_)
+import qualified Data.ByteString.Char8 as BS
+import qualified Data.ByteString.Lazy.Char8 as BL
+import qualified Data.Map as M
+import Data.Maybe
+import qualified Data.Text as T
+import Data.Time
+import Data.Time.Clock.POSIX
+import Data.Version (showVersion)
+import Data.Word (Word64)
+import Magic
import Network.AMQP
-import Network.AMQP.Utils.Options
-import Network.AMQP.Utils.Helpers
+import Network.AMQP.Types
import Network.AMQP.Utils.Connection
-import qualified Data.ByteString.Lazy.Char8 as BL
+import Network.AMQP.Utils.Helpers
+import Network.AMQP.Utils.Options
+import Paths_amqp_utils (version)
+import qualified System.Directory.OsPath as DO
+import System.Environment
+import System.Exit
+#if linux_HOST_OS
+import System.INotify
+#endif
+import System.Posix.ByteString (RawFilePath)
+import qualified System.Posix.Files.ByteString as FB
+import qualified System.Posix.Files.PosixString as FP
+import qualified System.OsPath as OS
+import qualified System.File.OsPath as FOS
main :: IO ()
main = do
- hr "starting"
- -- tid <- myThreadId
- args <- getArgs >>= parseargs "agitprop"
- printparam' "client version" $ "amqp-utils " ++ (showVersion version)
- messageFile <- BL.readFile (inputFile args)
- (conn, chan) <- connect args
- let publishOneMsg f = publishMsg chan
- (T.pack $ currentExchange args)
- (T.pack $ rKey args)
- newMsg { msgBody = f
- , msgDeliveryMode = Just Persistent
- }
- _ <- if (lineMode args)
- then mapM_ publishOneMsg (BL.lines messageFile)
- else publishOneMsg messageFile >> return ()
-
- closeConnection conn
+ hr "starting"
+ tid <- myThreadId
+ args <- getArgs >>= parseargs 'a'
+ printparam "client version" ["amqp-utils", showVersion version]
+ printparam "routing key" $ rKey args
+ printparam "exchange" $ currentExchange args
+ (conn, chan) <- connect args
+ addChannelExceptionHandler chan (X.throwTo tid)
+ printparam "confirm mode" $ confirm args
+ if (confirm args)
+ then do
+ confirmSelect chan False
+ addConfirmationListener chan confirmCallback
+ else return ()
+ let inputFile' = firstInputFile (inputFiles args)
+ isDir <-
+ if inputFile' == "-"
+ then return False
+ else FB.getFileStatus inputFile' >>= return . FB.isDirectory
+ let publishOneMsg =
+ publishOneMsg' chan args {removeSentFile = removeSentFile args && isDir}
+ if isDir
+ then do
+ printparam "hotfolder mode" True
+ printparam "initial scan" (initialScan args)
+ if isNothing (moveSentFileTo args)
+ then printparam "remove sent file" (removeSentFile args)
+ else printparam "move sent file to" (moveSentFileTo args)
+ else printparam
+ "input file"
+ [ inputFile'
+ , if (lineMode args)
+ then "(line-by-line)"
+ else ""
+ ]
+ X.catch
+ (if isDir
+ then do
+#if linux_HOST_OS
+ wds <- mapM (watchHotfolder args publishOneMsg) (inputFiles args)
+ sleepingBeauty >>= (\x -> do
+ forM_ wds (\(wd,folder) -> do
+ removeWatch wd
+ printparam "END watching" folder
+ )
+ X.throw x)
+#else
+ X.throw (X.ErrorCall "ERROR: watching a directory is only supported in Linux")
+#endif
+ else do
+ hr $ "BEGIN sending"
+ messageFile <-
+ if inputFile' == "-"
+ then BL.getContents
+ else OS.encodeUtf (BS.unpack inputFile') >>= FOS.readFile
+ if (lineMode args)
+ then mapM_ (publishOneMsg (currentExchange args) (rKey args) Nothing) (BL.lines messageFile)
+ else publishOneMsg (currentExchange args) (rKey args) (Just (inputFile')) messageFile
+ hr "END sending"
+ if (confirm args)
+ then waitForConfirms chan >>= printparam "confirmed"
+ else return ()
+ X.catch (closeConnection conn) exceptionHandler
+ )
+ exceptionHandler
+
+#if linux_HOST_OS
+-- | watch a hotfolder
+watchHotfolder ::
+ Args
+ -> (String -> String -> Maybe RawFilePath -> BL.ByteString -> IO ())
+ -> (RawFilePath, String, String)
+ -> IO (WatchDescriptor, RawFilePath)
+watchHotfolder args publishOneMsg (folder, exchange, rkey) = do
+ printparam "hotfolder" folder
+ inotify <- initINotify
+ wd <-
+ addWatch
+ inotify
+ [CloseWrite, MoveIn]
+ folder
+ (handleEvent (publishOneMsg exchange rkey) (suffix args) folder)
+ hr "BEGIN watching"
+ if (initialScan args)
+ then do
+ folder' <- OS.encodeUtf (BS.unpack folder)
+ DO.listDirectory folder' >>=
+ mapM_ (\fn -> handleFile (publishOneMsg exchange rkey) (suffix args) (folder' OS.</> fn))
+ else return ()
+ return (wd,folder)
+#endif
+
+-- | A handler for clean exit
+exceptionHandler :: AMQPException -> IO ()
+exceptionHandler (ChannelClosedException Normal txt) =
+ printparam "exit" txt >> exitWith ExitSuccess
+exceptionHandler (ConnectionClosedException Normal txt) =
+ printparam "exit" txt >> exitWith ExitSuccess
+exceptionHandler x = printparam "exception" x >> exitWith (ExitFailure 1)
+
+-- | The handler for publisher confirms
+confirmCallback :: (Word64, Bool, AckType) -> IO ()
+confirmCallback (deliveryTag, isAll, ackType) =
+ printparam
+ "confirmed"
+ [ show deliveryTag
+ , if isAll
+ then "all"
+ else "this"
+ , show ackType
+ ]
+
+#if linux_HOST_OS
+-- | Hotfolder event handler
+handleEvent ::
+ (Maybe RawFilePath -> BL.ByteString -> IO ()) -> [BS.ByteString] -> OS.OsPath -> Event -> IO ()
+-- just handle closewrite and movedin events
+handleEvent func suffixes folder (Closed False (Just fileName) True) =
+ handleFile func suffixes (folder OS.</> fileName)
+handleEvent func suffixes folder (MovedIn False fileName _) =
+ handleFile func suffixes (folder OS.</> fileName)
+handleEvent _ _ _ _ = return ()
+
+-- | Hotfolder file handler
+handleFile ::
+ (Maybe RawFilePath -> BL.ByteString -> IO ()) -> [BS.ByteString] -> OS.OsPath -> IO ()
+handleFile func suffixes@(_:_) fileName =
+ if (any (flip BS.isSuffixOf fileName) suffixes) && not ("." `BS.isPrefixOf` fileName)
+ then handleFile func [] fileName
+ else return ()
+handleFile func [] fileName =
+ X.catch
+ (FOS.readFile fileName >>= func (Just fileName))
+ (\e -> printparam "exception while processing" fileName >> printparam "exception in handleFile" (e :: X.IOException))
+#endif
+
+-- | Publish one message with our settings
+publishOneMsg' ::
+ Channel
+ -> Args
+ -> String
+ -> String
+ -> Maybe RawFilePath
+ -> BL.ByteString
+ -> IO ()
+publishOneMsg' chan a exchange rkey fn content = do
+ printparam "sending" fn
+ (mtype, mencoding) <-
+ if (magic a)
+ then do
+ let firstchunk = if BL.null content then BS.empty else head $ BL.toChunks content
+ m <- magicOpen [MagicMimeType]
+ magicLoadDefault m
+ t <- BS.useAsCStringLen firstchunk (magicCString m)
+ magicSetFlags m [MagicMimeEncoding]
+ e <- BS.useAsCStringLen firstchunk (magicCString m)
+ return (Just (T.pack t), Just (T.pack e))
+ else return ((contenttype a), (contentencoding a))
+ now <- getCurrentTime >>= return . floor . utcTimeToPOSIXSeconds
+ publishMsg
+ chan
+ (T.pack $ exchange)
+ (T.pack $ rkey)
+ newMsg
+ { msgBody = content
+ , msgDeliveryMode = persistent a
+ , msgTimestamp = Just now
+ , msgID = msgid a
+ , msgType = msgtype a
+ , msgUserID = userid a
+ , msgApplicationID = appid a
+ , msgClusterID = clusterid a
+ , msgContentType = mtype
+ , msgContentEncoding = mencoding
+ , msgReplyTo = replyto a
+ , msgPriority = prio a
+ , msgCorrelationID = corrid a
+ , msgExpiration = msgexp a
+ , msgHeaders = substheader (fnheader a) (fmap OS.takeFileName fn) $ msgheader a
+ } >>=
+ printparam "sent"
+ removeSentFileIfRequested (removeSentFile a) (moveSentFileTo a) fn
+ where
+ substheader ::
+ [String] -> Maybe BS.ByteString -> Maybe FieldTable -> Maybe FieldTable
+ substheader (s:r) (Just fname) old =
+ substheader r (Just fname) (addheader' old s fname)
+ substheader _ _ old = old
+ removeSentFileIfRequested False _ _ = return ()
+ removeSentFileIfRequested True _ Nothing = return ()
+ removeSentFileIfRequested True Nothing (Just fname) =
+ printparam "removing" fname >> DO.removeFile fname
+ removeSentFileIfRequested True (Just path) (Just fname) =
+ printparam "moving" [fname,"to",path] >>
+ FP.rename fname (OS.replaceDirectory fname ((OS.takeDirectory fname) OS.</> path))
+ addheader' :: Maybe FieldTable -> String -> BS.ByteString -> Maybe FieldTable
+ addheader' Nothing k v =
+ Just $ FieldTable $ M.singleton (T.pack k) (FVString v)
+ addheader' (Just (FieldTable oldheader)) k v =
+ Just $ FieldTable $ M.insert (T.pack k) (FVString v) oldheader
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