Files
simplex-chat/src/Simplex/Chat.hs
Efim Poberezkin 5961b7d951 asynchronously subscribe to user connections (#310)
* asynchronously subscribe to user connections

* send subscription status summaries to view/api

* refactor

* add help messages in summaries

* update simplexmq

* rename config field

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>
2022-02-25 12:29:36 +00:00

1504 lines
75 KiB
Haskell

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}
{-# LANGUAGE TypeApplications #-}
module Simplex.Chat where
import Control.Applicative (optional, (<|>))
import Control.Concurrent.STM (stateTVar)
import Control.Logger.Simple
import Control.Monad.Except
import Control.Monad.IO.Unlift
import Control.Monad.Reader
import Crypto.Random (drgNew)
import Data.Attoparsec.ByteString.Char8 (Parser)
import qualified Data.Attoparsec.ByteString.Char8 as A
import Data.Bifunctor (first)
import Data.ByteString.Char8 (ByteString)
import qualified Data.ByteString.Char8 as B
import Data.Char (isSpace)
import Data.Functor (($>))
import Data.Int (Int64)
import Data.List (find)
import Data.Map.Strict (Map)
import qualified Data.Map.Strict as M
import Data.Maybe (isJust, mapMaybe)
import Data.Text (Text)
import qualified Data.Text as T
import Data.Time.Clock (UTCTime, getCurrentTime)
import Data.Time.LocalTime (getCurrentTimeZone)
import Data.Word (Word32)
import Simplex.Chat.Controller
import Simplex.Chat.Markdown
import Simplex.Chat.Messages
import Simplex.Chat.Options (ChatOpts (..))
import Simplex.Chat.Protocol
import Simplex.Chat.Store
import Simplex.Chat.Types
import Simplex.Chat.Util (ifM, safeDecodeUtf8, unlessM, whenM)
import Simplex.Messaging.Agent
import Simplex.Messaging.Agent.Env.SQLite (AgentConfig (..), defaultAgentConfig)
import Simplex.Messaging.Agent.Protocol
import qualified Simplex.Messaging.Crypto as C
import Simplex.Messaging.Encoding
import Simplex.Messaging.Encoding.String
import Simplex.Messaging.Parsers (parseAll)
import Simplex.Messaging.Protocol (ErrorType (..), MsgBody)
import qualified Simplex.Messaging.Protocol as SMP
import Simplex.Messaging.Util (tryError)
import System.Exit (exitFailure, exitSuccess)
import System.FilePath (combine, splitExtensions, takeFileName)
import System.IO (Handle, IOMode (..), SeekMode (..), hFlush, openFile, stdout)
import Text.Read (readMaybe)
import UnliftIO.Async
import UnliftIO.Concurrent (forkIO, threadDelay)
import UnliftIO.Directory (doesDirectoryExist, doesFileExist, getFileSize, getHomeDirectory, getTemporaryDirectory)
import qualified UnliftIO.Exception as E
import UnliftIO.IO (hClose, hSeek, hTell)
import UnliftIO.STM
defaultChatConfig :: ChatConfig
defaultChatConfig =
ChatConfig
{ agentConfig =
defaultAgentConfig
{ tcpPort = undefined, -- agent does not listen to TCP
smpServers = undefined, -- filled in from options
dbFile = undefined, -- filled in from options
dbPoolSize = 1,
yesToMigrations = False
},
dbPoolSize = 1,
yesToMigrations = False,
tbqSize = 64,
fileChunkSize = 15780,
subscriptionEvents = False,
testView = False
}
logCfg :: LogConfig
logCfg = LogConfig {lc_file = Nothing, lc_stderr = True}
newChatController :: SQLiteStore -> Maybe User -> ChatConfig -> ChatOpts -> (Notification -> IO ()) -> IO ChatController
newChatController chatStore user cfg@ChatConfig {agentConfig = aCfg, tbqSize} ChatOpts {dbFilePrefix, smpServers, logConnections} sendNotification = do
let f = chatStoreFile dbFilePrefix
let config = cfg {subscriptionEvents = logConnections}
activeTo <- newTVarIO ActiveNone
firstTime <- not <$> doesFileExist f
currentUser <- newTVarIO user
smpAgent <- getSMPAgentClient aCfg {dbFile = dbFilePrefix <> "_agent.db", smpServers}
agentAsync <- newTVarIO Nothing
idsDrg <- newTVarIO =<< drgNew
inputQ <- newTBQueueIO tbqSize
outputQ <- newTBQueueIO tbqSize
notifyQ <- newTBQueueIO tbqSize
chatLock <- newTMVarIO ()
sndFiles <- newTVarIO M.empty
rcvFiles <- newTVarIO M.empty
pure ChatController {activeTo, firstTime, currentUser, smpAgent, agentAsync, chatStore, idsDrg, inputQ, outputQ, notifyQ, chatLock, sndFiles, rcvFiles, config, sendNotification}
runChatController :: (MonadUnliftIO m, MonadReader ChatController m) => User -> m ()
runChatController = race_ notificationSubscriber . agentSubscriber
startChatController :: (MonadUnliftIO m, MonadReader ChatController m) => User -> m (Async ())
startChatController user = do
s <- asks agentAsync
readTVarIO s >>= maybe (start s) pure
where
start s = do
a <- async $ runChatController user
atomically . writeTVar s $ Just a
pure a
withLock :: MonadUnliftIO m => TMVar () -> m a -> m a
withLock lock =
E.bracket_
(void . atomically $ takeTMVar lock)
(atomically $ putTMVar lock ())
execChatCommand :: (MonadUnliftIO m, MonadReader ChatController m) => ByteString -> m ChatResponse
execChatCommand s = case parseAll chatCommandP $ B.dropWhileEnd isSpace s of
Left e -> pure $ chatCmdError e
Right cmd -> either CRChatCmdError id <$> runExceptT (processChatCommand cmd)
toView :: ChatMonad m => ChatResponse -> m ()
toView event = do
q <- asks outputQ
atomically $ writeTBQueue q (Nothing, event)
processChatCommand :: forall m. ChatMonad m => ChatCommand -> m ChatResponse
processChatCommand = \case
ShowActiveUser -> withUser' $ pure . CRActiveUser
CreateActiveUser p -> do
u <- asks currentUser
whenM (isJust <$> readTVarIO u) $ throwChatError CEActiveUserExists
user <- withStore $ \st -> createUser st p True
atomically . writeTVar u $ Just user
pure $ CRActiveUser user
StartChat -> withUser' $ \user -> startChatController user $> CRChatStarted
APIGetChats -> CRApiChats <$> withUser (\user -> withStore (`getChatPreviews` user))
APIGetChat cType cId pagination -> withUser $ \user -> case cType of
CTDirect -> CRApiChat . AChat SCTDirect <$> withStore (\st -> getDirectChat st user cId pagination)
CTGroup -> CRApiChat . AChat SCTGroup <$> withStore (\st -> getGroupChat st user cId pagination)
CTContactRequest -> pure $ chatCmdError "not implemented"
APIGetChatItems _pagination -> pure $ chatCmdError "not implemented"
APISendMessage cType chatId mc -> withUser $ \user@User {userId} -> withChatLock $ case cType of
CTDirect -> do
ct@Contact {localDisplayName = c} <- withStore $ \st -> getContact st userId chatId
ci <- sendDirectChatItem userId ct (XMsgNew mc) (CISndMsgContent mc)
setActive $ ActiveC c
pure . CRNewChatItem $ AChatItem SCTDirect SMDSnd (DirectChat ct) ci
CTGroup -> do
group@(Group gInfo@GroupInfo {localDisplayName = gName, membership} _) <- withStore $ \st -> getGroup st user chatId
unless (memberActive membership) $ throwChatError CEGroupMemberUserRemoved
ci <- sendGroupChatItem userId group (XMsgNew mc) (CISndMsgContent mc)
setActive $ ActiveG gName
pure . CRNewChatItem $ AChatItem SCTGroup SMDSnd (GroupChat gInfo) ci
CTContactRequest -> pure $ chatCmdError "not supported"
APIChatRead cType chatId fromToIds -> withChatLock $ case cType of
CTDirect -> withStore (\st -> updateDirectChatItemsRead st chatId fromToIds) $> CRCmdOk
CTGroup -> withStore (\st -> updateGroupChatItemsRead st chatId fromToIds) $> CRCmdOk
CTContactRequest -> pure $ chatCmdError "not supported"
APIDeleteChat cType chatId -> withUser $ \User {userId} -> case cType of
CTDirect -> do
ct@Contact {localDisplayName} <- withStore $ \st -> getContact st userId chatId
withStore (\st -> getContactGroupNames st userId ct) >>= \case
[] -> do
conns <- withStore $ \st -> getContactConnections st userId ct
withChatLock . procCmd $ do
withAgent $ \a -> forM_ conns $ \conn ->
deleteConnection a (aConnId conn) `catchError` \(_ :: AgentErrorType) -> pure ()
withStore $ \st -> deleteContact st userId ct
unsetActive $ ActiveC localDisplayName
pure $ CRContactDeleted ct
gs -> throwChatError $ CEContactGroups ct gs
CTGroup -> pure $ chatCmdError "not implemented"
CTContactRequest -> pure $ chatCmdError "not supported"
APIAcceptContact connReqId -> withUser $ \user@User {userId} -> withChatLock $ do
cReq <- withStore $ \st -> getContactRequest st userId connReqId
procCmd $ CRAcceptingContactRequest <$> acceptContactRequest user cReq
APIRejectContact connReqId -> withUser $ \User {userId} -> withChatLock $ do
cReq@UserContactRequest {agentContactConnId = AgentConnId connId, agentInvitationId = AgentInvId invId} <-
withStore $ \st ->
getContactRequest st userId connReqId
`E.finally` deleteContactRequest st userId connReqId
withAgent $ \a -> rejectContact a connId invId
pure $ CRContactRequestRejected cReq
ChatHelp section -> pure $ CRChatHelp section
Welcome -> withUser $ pure . CRWelcome
AddContact -> withUser $ \User {userId} -> withChatLock . procCmd $ do
(connId, cReq) <- withAgent (`createConnection` SCMInvitation)
withStore $ \st -> createDirectConnection st userId connId
pure $ CRInvitation cReq
Connect (Just (ACR SCMInvitation cReq)) -> withUser $ \User {userId, profile} -> withChatLock . procCmd $ do
connId <- withAgent $ \a -> joinConnection a cReq . directMessage $ XInfo profile
withStore $ \st -> createDirectConnection st userId connId
pure CRSentConfirmation
Connect (Just (ACR SCMContact cReq)) -> withUser $ \User {userId, profile} ->
connectViaContact userId cReq profile
Connect Nothing -> throwChatError CEInvalidConnReq
ConnectAdmin -> withUser $ \User {userId, profile} ->
connectViaContact userId adminContactReq profile
DeleteContact cName -> withUser $ \User {userId} -> do
contactId <- withStore $ \st -> getContactIdByName st userId cName
processChatCommand $ APIDeleteChat CTDirect contactId
ListContacts -> withUser $ \user -> CRContactsList <$> withStore (`getUserContacts` user)
CreateMyAddress -> withUser $ \User {userId} -> withChatLock . procCmd $ do
(connId, cReq) <- withAgent (`createConnection` SCMContact)
withStore $ \st -> createUserContactLink st userId connId cReq
pure $ CRUserContactLinkCreated cReq
DeleteMyAddress -> withUser $ \User {userId} -> withChatLock $ do
conns <- withStore $ \st -> getUserContactLinkConnections st userId
procCmd $ do
withAgent $ \a -> forM_ conns $ \conn ->
deleteConnection a (aConnId conn) `catchError` \(_ :: AgentErrorType) -> pure ()
withStore $ \st -> deleteUserContactLink st userId
pure CRUserContactLinkDeleted
ShowMyAddress -> withUser $ \User {userId} ->
uncurry CRUserContactLink <$> withStore (`getUserContactLink` userId)
AddressAutoAccept onOff -> withUser $ \User {userId} -> do
uncurry CRUserContactLinkUpdated <$> withStore (\st -> updateUserContactLinkAutoAccept st userId onOff)
AcceptContact cName -> withUser $ \User {userId} -> do
connReqId <- withStore $ \st -> getContactRequestIdByName st userId cName
processChatCommand $ APIAcceptContact connReqId
RejectContact cName -> withUser $ \User {userId} -> do
connReqId <- withStore $ \st -> getContactRequestIdByName st userId cName
processChatCommand $ APIRejectContact connReqId
SendMessage cName msg -> withUser $ \User {userId} -> do
contactId <- withStore $ \st -> getContactIdByName st userId cName
let mc = MCText $ safeDecodeUtf8 msg
processChatCommand $ APISendMessage CTDirect contactId mc
NewGroup gProfile -> withUser $ \user -> do
gVar <- asks idsDrg
CRGroupCreated <$> withStore (\st -> createNewGroup st gVar user gProfile)
AddMember gName cName memRole -> withUser $ \user@User {userId} -> withChatLock $ do
-- TODO for large groups: no need to load all members to determine if contact is a member
(group, contact) <- withStore $ \st -> (,) <$> getGroupByName st user gName <*> getContactByName st userId cName
let Group gInfo@GroupInfo {groupId, groupProfile, membership} members = group
GroupMember {memberRole = userRole, memberId = userMemberId} = membership
when (userRole < GRAdmin || userRole < memRole) $ throwChatError CEGroupUserRole
when (memberStatus membership == GSMemInvited) $ throwChatError (CEGroupNotJoined gInfo)
unless (memberActive membership) $ throwChatError CEGroupMemberNotActive
let sendInvitation memberId cReq = do
void . sendDirectContactMessage contact $
XGrpInv $ GroupInvitation (MemberIdRole userMemberId userRole) (MemberIdRole memberId memRole) cReq groupProfile
setActive $ ActiveG gName
pure $ CRSentGroupInvitation gInfo contact
case contactMember contact members of
Nothing -> do
gVar <- asks idsDrg
(agentConnId, cReq) <- withAgent (`createConnection` SCMInvitation)
GroupMember {memberId} <- withStore $ \st -> createContactMember st gVar user groupId contact memRole agentConnId cReq
sendInvitation memberId cReq
Just GroupMember {groupMemberId, memberId, memberStatus}
| memberStatus == GSMemInvited ->
withStore (\st -> getMemberInvitation st user groupMemberId) >>= \case
Just cReq -> sendInvitation memberId cReq
Nothing -> throwChatError $ CEGroupCantResendInvitation gInfo cName
| otherwise -> throwChatError $ CEGroupDuplicateMember cName
JoinGroup gName -> withUser $ \user@User {userId} -> do
ReceivedGroupInvitation {fromMember, connRequest, groupInfo = g} <- withStore $ \st -> getGroupInvitation st user gName
withChatLock . procCmd $ do
agentConnId <- withAgent $ \a -> joinConnection a connRequest . directMessage . XGrpAcpt $ memberId (membership g :: GroupMember)
withStore $ \st -> do
createMemberConnection st userId fromMember agentConnId
updateGroupMemberStatus st userId fromMember GSMemAccepted
updateGroupMemberStatus st userId (membership g) GSMemAccepted
pure $ CRUserAcceptedGroupSent g
MemberRole _gName _cName _mRole -> throwChatError $ CECommandError "unsupported"
RemoveMember gName cName -> withUser $ \user@User {userId} -> do
Group gInfo@GroupInfo {membership} members <- withStore $ \st -> getGroupByName st user gName
case find ((== cName) . (localDisplayName :: GroupMember -> ContactName)) members of
Nothing -> throwChatError $ CEGroupMemberNotFound cName
Just m@GroupMember {memberId = mId, memberRole = mRole, memberStatus = mStatus} -> do
let userRole = memberRole (membership :: GroupMember)
when (userRole < GRAdmin || userRole < mRole) $ throwChatError CEGroupUserRole
withChatLock . procCmd $ do
when (mStatus /= GSMemInvited) . void . sendGroupMessage members $ XGrpMemDel mId
deleteMemberConnection m
withStore $ \st -> updateGroupMemberStatus st userId m GSMemRemoved
pure $ CRUserDeletedMember gInfo m
LeaveGroup gName -> withUser $ \user@User {userId} -> do
Group gInfo@GroupInfo {membership} members <- withStore $ \st -> getGroupByName st user gName
withChatLock . procCmd $ do
void $ sendGroupMessage members XGrpLeave
mapM_ deleteMemberConnection members
withStore $ \st -> updateGroupMemberStatus st userId membership GSMemLeft
pure $ CRLeftMemberUser gInfo
DeleteGroup gName -> withUser $ \user -> do
g@(Group gInfo@GroupInfo {membership} members) <- withStore $ \st -> getGroupByName st user gName
let s = memberStatus membership
canDelete =
memberRole (membership :: GroupMember) == GROwner
|| (s == GSMemRemoved || s == GSMemLeft || s == GSMemGroupDeleted || s == GSMemInvited)
unless canDelete $ throwChatError CEGroupUserRole
withChatLock . procCmd $ do
when (memberActive membership) . void $ sendGroupMessage members XGrpDel
mapM_ deleteMemberConnection members
withStore $ \st -> deleteGroup st user g
pure $ CRGroupDeletedUser gInfo
ListMembers gName -> CRGroupMembers <$> withUser (\user -> withStore (\st -> getGroupByName st user gName))
ListGroups -> CRGroupsList <$> withUser (\user -> withStore (`getUserGroupDetails` user))
SendGroupMessage gName msg -> withUser $ \user -> do
groupId <- withStore $ \st -> getGroupIdByName st user gName
let mc = MCText $ safeDecodeUtf8 msg
processChatCommand $ APISendMessage CTGroup groupId mc
SendFile cName f -> withUser $ \User {userId} -> withChatLock $ do
(fileSize, chSize) <- checkSndFile f
contact <- withStore $ \st -> getContactByName st userId cName
(agentConnId, fileConnReq) <- withAgent (`createConnection` SCMInvitation)
let fileInv = FileInvitation {fileName = takeFileName f, fileSize, fileConnReq}
SndFileTransfer {fileId} <- withStore $ \st ->
createSndFileTransfer st userId contact f fileInv agentConnId chSize
ci <- sendDirectChatItem userId contact (XFile fileInv) (CISndFileInvitation fileId f)
withStore $ \st -> updateFileTransferChatItemId st fileId $ chatItemId' ci
setActive $ ActiveC cName
pure . CRNewChatItem $ AChatItem SCTDirect SMDSnd (DirectChat contact) ci
SendGroupFile gName f -> withUser $ \user@User {userId} -> withChatLock $ do
(fileSize, chSize) <- checkSndFile f
Group gInfo@GroupInfo {membership} members <- withStore $ \st -> getGroupByName st user gName
unless (memberActive membership) $ throwChatError CEGroupMemberUserRemoved
let fileName = takeFileName f
ms <- forM (filter memberActive members) $ \m -> do
(connId, fileConnReq) <- withAgent (`createConnection` SCMInvitation)
pure (m, connId, FileInvitation {fileName, fileSize, fileConnReq})
fileId <- withStore $ \st -> createSndGroupFileTransfer st userId gInfo ms f fileSize chSize
-- TODO sendGroupChatItem - same file invitation to all
forM_ ms $ \(m, _, fileInv) ->
traverse (`sendDirectMessage` XFile fileInv) $ memberConn m
setActive $ ActiveG gName
-- this is a hack as we have multiple direct messages instead of one per group
let ciContent = CISndFileInvitation fileId f
createdAt <- liftIO getCurrentTime
let ci = mkNewChatItem ciContent 0 createdAt createdAt
cItem@ChatItem {meta = CIMeta {itemId}} <- saveChatItem userId (CDGroupSnd gInfo) ci
withStore $ \st -> updateFileTransferChatItemId st fileId itemId
pure . CRNewChatItem $ AChatItem SCTGroup SMDSnd (GroupChat gInfo) cItem
ReceiveFile fileId filePath_ -> withUser $ \User {userId} -> do
ft@RcvFileTransfer {fileInvitation = FileInvitation {fileName, fileConnReq}, fileStatus} <- withStore $ \st -> getRcvFileTransfer st userId fileId
unless (fileStatus == RFSNew) . throwChatError $ CEFileAlreadyReceiving fileName
withChatLock . procCmd $ do
tryError (withAgent $ \a -> joinConnection a fileConnReq . directMessage $ XFileAcpt fileName) >>= \case
Right agentConnId -> do
filePath <- getRcvFilePath fileId filePath_ fileName
withStore $ \st -> acceptRcvFileTransfer st userId fileId agentConnId filePath
pure $ CRRcvFileAccepted ft filePath
Left (ChatErrorAgent (SMP SMP.AUTH)) -> pure $ CRRcvFileAcceptedSndCancelled ft
Left (ChatErrorAgent (CONN DUPLICATE)) -> pure $ CRRcvFileAcceptedSndCancelled ft
Left e -> throwError e
CancelFile fileId -> withUser $ \User {userId} -> do
ft' <- withStore (\st -> getFileTransfer st userId fileId)
withChatLock . procCmd $ case ft' of
FTSnd fts -> do
forM_ fts $ \ft -> cancelSndFileTransfer ft
pure $ CRSndGroupFileCancelled fts
FTRcv ft -> do
cancelRcvFileTransfer ft
pure $ CRRcvFileCancelled ft
FileStatus fileId ->
CRFileTransferStatus <$> withUser (\User {userId} -> withStore $ \st -> getFileTransferProgress st userId fileId)
ShowProfile -> withUser $ \User {profile} -> pure $ CRUserProfile profile
UpdateProfile p@Profile {displayName} -> withUser $ \user@User {profile} ->
if p == profile
then pure CRUserProfileNoChange
else do
withStore $ \st -> updateUserProfile st user p
let user' = (user :: User) {localDisplayName = displayName, profile = p}
asks currentUser >>= atomically . (`writeTVar` Just user')
contacts <- withStore (`getUserContacts` user)
withChatLock . procCmd $ do
forM_ contacts $ \ct -> sendDirectContactMessage ct $ XInfo p
pure $ CRUserProfileUpdated profile p
QuitChat -> liftIO exitSuccess
ShowVersion -> pure $ CRVersionInfo versionNumber
where
withChatLock action = do
ChatController {chatLock = l, smpAgent = a} <- ask
withAgentLock a . withLock l $ action
-- below code would make command responses asynchronous where they can be slow
-- in View.hs `r'` should be defined as `id` in this case
-- procCmd :: m ChatResponse -> m ChatResponse
-- procCmd action = do
-- ChatController {chatLock = l, smpAgent = a, outputQ = q, idsDrg = gVar} <- ask
-- corrId <- liftIO $ SMP.CorrId <$> randomBytes gVar 8
-- void . forkIO $
-- withAgentLock a . withLock l $
-- (atomically . writeTBQueue q) . (Just corrId,) =<< (action `catchError` (pure . CRChatError))
-- pure $ CRCmdAccepted corrId
-- use function below to make commands "synchronous"
procCmd :: m ChatResponse -> m ChatResponse
procCmd = id
connectViaContact :: UserId -> ConnectionRequestUri 'CMContact -> Profile -> m ChatResponse
connectViaContact userId cReq profile = withChatLock $ do
let cReqHash = ConnReqUriHash . C.sha256Hash $ strEncode cReq
withStore (\st -> getConnReqContactXContactId st userId cReqHash) >>= \case
(Just contact, _) -> pure $ CRContactAlreadyExists contact
(_, xContactId_) -> procCmd $ do
let randomXContactId = XContactId <$> (asks idsDrg >>= liftIO . (`randomBytes` 16))
xContactId <- maybe randomXContactId pure xContactId_
connId <- withAgent $ \a -> joinConnection a cReq $ directMessage (XContact profile $ Just xContactId)
withStore $ \st -> createConnReqConnection st userId connId cReqHash xContactId
pure CRSentInvitation
contactMember :: Contact -> [GroupMember] -> Maybe GroupMember
contactMember Contact {contactId} =
find $ \GroupMember {memberContactId = cId, memberStatus = s} ->
cId == Just contactId && s /= GSMemRemoved && s /= GSMemLeft
checkSndFile :: FilePath -> m (Integer, Integer)
checkSndFile f = do
unlessM (doesFileExist f) . throwChatError $ CEFileNotFound f
(,) <$> getFileSize f <*> asks (fileChunkSize . config)
getRcvFilePath :: Int64 -> Maybe FilePath -> String -> m FilePath
getRcvFilePath fileId filePath fileName = case filePath of
Nothing -> do
dir <- (`combine` "Downloads") <$> getHomeDirectory
ifM (doesDirectoryExist dir) (pure dir) getTemporaryDirectory
>>= (`uniqueCombine` fileName)
>>= createEmptyFile
Just fPath ->
ifM
(doesDirectoryExist fPath)
(fPath `uniqueCombine` fileName >>= createEmptyFile)
$ ifM
(doesFileExist fPath)
(throwChatError $ CEFileAlreadyExists fPath)
(createEmptyFile fPath)
where
createEmptyFile :: FilePath -> m FilePath
createEmptyFile fPath = emptyFile fPath `E.catch` (throwChatError . CEFileWrite fPath . (show :: E.SomeException -> String))
emptyFile :: FilePath -> m FilePath
emptyFile fPath = do
h <- getFileHandle fileId fPath rcvFiles AppendMode
liftIO $ B.hPut h "" >> hFlush h
pure fPath
uniqueCombine :: FilePath -> String -> m FilePath
uniqueCombine filePath fileName = tryCombine (0 :: Int)
where
tryCombine n =
let (name, ext) = splitExtensions fileName
suffix = if n == 0 then "" else "_" <> show n
f = filePath `combine` (name <> suffix <> ext)
in ifM (doesFileExist f) (tryCombine $ n + 1) (pure f)
acceptContactRequest :: ChatMonad m => User -> UserContactRequest -> m Contact
acceptContactRequest User {userId, profile} UserContactRequest {agentInvitationId = AgentInvId invId, localDisplayName = cName, profileId, profile = p, xContactId} = do
connId <- withAgent $ \a -> acceptContact a invId . directMessage $ XInfo profile
withStore $ \st -> createAcceptedContact st userId connId cName profileId p xContactId
agentSubscriber :: (MonadUnliftIO m, MonadReader ChatController m) => User -> m ()
agentSubscriber user = do
q <- asks $ subQ . smpAgent
l <- asks chatLock
subscribeUserConnections user
forever $ do
(_, connId, msg) <- atomically $ readTBQueue q
u <- readTVarIO =<< asks currentUser
withLock l . void . runExceptT $
processAgentMessage u connId msg `catchError` (toView . CRChatError)
subscribeUserConnections :: (MonadUnliftIO m, MonadReader ChatController m) => User -> m ()
subscribeUserConnections user@User {userId} = do
ce <- asks $ subscriptionEvents . config
void . runExceptT . (mapConcurrently_ id) $
[ subscribeContacts ce,
subscribeGroups ce,
subscribeFiles,
subscribePendingConnections,
subscribeUserContactLink
]
where
subscribeContacts ce = do
contacts <- withStore (`getUserContacts` user)
toView . CRContactSubSummary =<< forConcurrently contacts (\ct -> ContactSubStatus ct <$> subscribeContact ce ct)
subscribeContact ce ct =
(subscribe (contactConnId ct) >> when ce (toView $ CRContactSubscribed ct) $> Nothing)
`catchError` (\e -> when ce (toView $ CRContactSubError ct e) $> Just e)
subscribeGroups ce = do
groups <- withStore (`getUserGroups` user)
toView . CRMemberSubErrors . mconcat =<< forConcurrently groups (subscribeGroup ce)
subscribeGroup ce (Group g@GroupInfo {membership} members) = do
let connectedMembers = mapMaybe (\m -> (m,) <$> memberConnId m) members
if memberStatus membership == GSMemInvited
then do
toView $ CRGroupInvitation g
pure []
else
if null connectedMembers
then do
if memberActive membership
then toView $ CRGroupEmpty g
else toView $ CRGroupRemoved g
pure []
else do
ms <- forConcurrently connectedMembers $ \(m@GroupMember {localDisplayName = c}, cId) ->
(m,) <$> ((subscribe cId $> Nothing) `catchError` (\e -> when ce (toView $ CRMemberSubError g c e) $> Just e))
toView $ CRGroupSubscribed g
pure $ mapMaybe (\(m, e) -> maybe Nothing (Just . MemberSubError m) e) ms
subscribeFiles = do
sndFileTransfers <- withStore (`getLiveSndFileTransfers` user)
forConcurrently_ sndFileTransfers $ \sft -> async $ subscribeSndFile sft
rcvFileTransfers <- withStore (`getLiveRcvFileTransfers` user)
forConcurrently_ rcvFileTransfers $ \rft -> async $ subscribeRcvFile rft
where
subscribeSndFile ft@SndFileTransfer {fileId, fileStatus, agentConnId = AgentConnId cId} = do
subscribe cId `catchError` (toView . CRSndFileSubError ft)
void . forkIO $ do
threadDelay 1000000
l <- asks chatLock
a <- asks smpAgent
unless (fileStatus == FSNew) . unlessM (isFileActive fileId sndFiles) $
withAgentLock a . withLock l $
sendFileChunk ft
subscribeRcvFile ft@RcvFileTransfer {fileStatus} =
case fileStatus of
RFSAccepted fInfo -> resume fInfo
RFSConnected fInfo -> resume fInfo
_ -> pure ()
where
resume RcvFileInfo {agentConnId = AgentConnId cId} =
subscribe cId `catchError` (toView . CRRcvFileSubError ft)
subscribePendingConnections = do
cs <- withStore (`getPendingConnections` user)
subscribeConns cs `catchError` \_ -> pure ()
subscribeUserContactLink = do
cs <- withStore (`getUserContactLinkConnections` userId)
(subscribeConns cs >> toView CRUserContactLinkSubscribed)
`catchError` (toView . CRUserContactLinkSubError)
subscribe cId = withAgent (`subscribeConnection` cId)
subscribeConns conns =
withAgent $ \a ->
forConcurrently_ conns $ \c -> subscribeConnection a (aConnId c)
processAgentMessage :: forall m. ChatMonad m => Maybe User -> ConnId -> ACommand 'Agent -> m ()
processAgentMessage Nothing _ _ = throwChatError CENoActiveUser
processAgentMessage (Just user@User {userId, profile}) agentConnId agentMessage =
(withStore (\st -> getConnectionEntity st user agentConnId) >>= updateConnStatus) >>= \case
RcvDirectMsgConnection conn contact_ ->
processDirectMessage agentMessage conn contact_
RcvGroupMsgConnection conn gInfo m ->
processGroupMessage agentMessage conn gInfo m
RcvFileConnection conn ft ->
processRcvFileConn agentMessage conn ft
SndFileConnection conn ft ->
processSndFileConn agentMessage conn ft
UserContactConnection conn uc ->
processUserContactRequest agentMessage conn uc
where
updateConnStatus :: ConnectionEntity -> m ConnectionEntity
updateConnStatus acEntity = case agentMsgConnStatus agentMessage of
Just connStatus -> do
let conn = (entityConnection acEntity) {connStatus}
withStore $ \st -> updateConnectionStatus st conn connStatus
pure $ updateEntityConnStatus acEntity connStatus
Nothing -> pure acEntity
isMember :: MemberId -> GroupInfo -> [GroupMember] -> Bool
isMember memId GroupInfo {membership} members =
sameMemberId memId membership || isJust (find (sameMemberId memId) members)
agentMsgConnStatus :: ACommand 'Agent -> Maybe ConnStatus
agentMsgConnStatus = \case
CONF {} -> Just ConnRequested
INFO _ -> Just ConnSndReady
CON -> Just ConnReady
_ -> Nothing
processDirectMessage :: ACommand 'Agent -> Connection -> Maybe Contact -> m ()
processDirectMessage agentMsg conn@Connection {connId} = \case
Nothing -> case agentMsg of
CONF confId connInfo -> do
saveConnInfo conn connInfo
allowAgentConnection conn confId $ XInfo profile
INFO connInfo ->
saveConnInfo conn connInfo
MSG meta msgBody -> do
_ <- saveRcvMSG conn meta msgBody
withAckMessage agentConnId meta $ pure ()
ackMsgDeliveryEvent conn meta
SENT msgId ->
-- ? updateDirectChatItem
sentMsgDeliveryEvent conn msgId
-- TODO print errors
MERR _ _ -> pure () -- ? updateDirectChatItem
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
Just ct@Contact {localDisplayName = c} -> case agentMsg of
MSG msgMeta msgBody -> do
(msgId, chatMsgEvent) <- saveRcvMSG conn msgMeta msgBody
withAckMessage agentConnId msgMeta $
case chatMsgEvent of
XMsgNew mc -> newContentMessage ct mc msgId msgMeta
XFile fInv -> processFileInvitation ct fInv msgId msgMeta
XInfo p -> xInfo ct p
XGrpInv gInv -> processGroupInvitation ct gInv
XInfoProbe probe -> xInfoProbe ct probe
XInfoProbeCheck probeHash -> xInfoProbeCheck ct probeHash
XInfoProbeOk probe -> xInfoProbeOk ct probe
_ -> pure ()
ackMsgDeliveryEvent conn msgMeta
CONF confId connInfo -> do
-- confirming direct connection with a member
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
XGrpMemInfo _memId _memProfile -> do
-- TODO check member ID
-- TODO update member profile
allowAgentConnection conn confId XOk
_ -> messageError "CONF from member must have x.grp.mem.info"
INFO connInfo -> do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
XGrpMemInfo _memId _memProfile -> do
-- TODO check member ID
-- TODO update member profile
pure ()
XInfo _profile -> do
-- TODO update contact profile
pure ()
XOk -> pure ()
_ -> messageError "INFO for existing contact must have x.grp.mem.info, x.info or x.ok"
CON ->
withStore (\st -> getViaGroupMember st user ct) >>= \case
Nothing -> do
toView $ CRContactConnected ct
setActive $ ActiveC c
showToast (c <> "> ") "connected"
Just (gInfo, m@GroupMember {activeConn}) -> do
when (maybe False ((== ConnReady) . connStatus) activeConn) $ do
notifyMemberConnected gInfo m
when (memberCategory m == GCPreMember) $ probeMatchingContacts ct
SENT msgId -> do
sentMsgDeliveryEvent conn msgId
chatItemId_ <- withStore $ \st -> getChatItemIdByAgentMsgId st connId msgId
case chatItemId_ of
Nothing -> pure ()
Just chatItemId -> do
chatItem <- withStore $ \st -> updateDirectChatItem st chatItemId CISSndSent
toView $ CRChatItemUpdated (AChatItem SCTDirect SMDSnd (DirectChat ct) chatItem)
END -> do
toView $ CRContactAnotherClient ct
showToast (c <> "> ") "connected to another client"
unsetActive $ ActiveC c
DOWN -> do
toView $ CRContactDisconnected ct
showToast (c <> "> ") "disconnected"
UP -> do
toView $ CRContactSubscribed ct
showToast (c <> "> ") "is active"
setActive $ ActiveC c
-- TODO print errors
MERR msgId err -> do
chatItemId_ <- withStore $ \st -> getChatItemIdByAgentMsgId st connId msgId
case chatItemId_ of
Nothing -> pure ()
Just chatItemId -> do
chatItem <- withStore $ \st -> updateDirectChatItem st chatItemId (agentErrToItemStatus err)
toView $ CRChatItemUpdated (AChatItem SCTDirect SMDSnd (DirectChat ct) chatItem)
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
processGroupMessage :: ACommand 'Agent -> Connection -> GroupInfo -> GroupMember -> m ()
processGroupMessage agentMsg conn gInfo@GroupInfo {localDisplayName = gName, membership} m = case agentMsg of
CONF confId connInfo -> do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case memberCategory m of
GCInviteeMember ->
case chatMsgEvent of
XGrpAcpt memId
| sameMemberId memId m -> do
withStore $ \st -> updateGroupMemberStatus st userId m GSMemAccepted
allowAgentConnection conn confId XOk
| otherwise -> messageError "x.grp.acpt: memberId is different from expected"
_ -> messageError "CONF from invited member must have x.grp.acpt"
_ ->
case chatMsgEvent of
XGrpMemInfo memId _memProfile
| sameMemberId memId m -> do
-- TODO update member profile
allowAgentConnection conn confId $ XGrpMemInfo (memberId (membership :: GroupMember)) profile
| otherwise -> messageError "x.grp.mem.info: memberId is different from expected"
_ -> messageError "CONF from member must have x.grp.mem.info"
INFO connInfo -> do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
XGrpMemInfo memId _memProfile
| sameMemberId memId m -> do
-- TODO update member profile
pure ()
| otherwise -> messageError "x.grp.mem.info: memberId is different from expected"
XOk -> pure ()
_ -> messageError "INFO from member must have x.grp.mem.info"
pure ()
CON -> do
members <- withStore $ \st -> getGroupMembers st user gInfo
withStore $ \st -> do
updateGroupMemberStatus st userId m GSMemConnected
unless (memberActive membership) $
updateGroupMemberStatus st userId membership GSMemConnected
sendPendingGroupMessages m conn
case memberCategory m of
GCHostMember -> do
toView $ CRUserJoinedGroup gInfo
setActive $ ActiveG gName
showToast ("#" <> gName) "you are connected to group"
GCInviteeMember -> do
toView $ CRJoinedGroupMember gInfo m
setActive $ ActiveG gName
showToast ("#" <> gName) $ "member " <> localDisplayName (m :: GroupMember) <> " is connected"
intros <- withStore $ \st -> createIntroductions st members m
void . sendGroupMessage members . XGrpMemNew $ memberInfo m
forM_ intros $ \intro@GroupMemberIntro {introId} -> do
void . sendDirectMessage conn . XGrpMemIntro . memberInfo $ reMember intro
withStore $ \st -> updateIntroStatus st introId GMIntroSent
_ -> do
-- TODO send probe and decide whether to use existing contact connection or the new contact connection
-- TODO notify member who forwarded introduction - question - where it is stored? There is via_contact but probably there should be via_member in group_members table
withStore (\st -> getViaGroupContact st user m) >>= \case
Nothing -> do
notifyMemberConnected gInfo m
messageError "implementation error: connected member does not have contact"
Just ct@Contact {activeConn = Connection {connStatus}} ->
when (connStatus == ConnReady) $ do
notifyMemberConnected gInfo m
when (memberCategory m == GCPreMember) $ probeMatchingContacts ct
MSG msgMeta msgBody -> do
(msgId, chatMsgEvent) <- saveRcvMSG conn msgMeta msgBody
withAckMessage agentConnId msgMeta $
case chatMsgEvent of
XMsgNew mc -> newGroupContentMessage gInfo m mc msgId msgMeta
XFile fInv -> processGroupFileInvitation gInfo m fInv msgId msgMeta
XGrpMemNew memInfo -> xGrpMemNew gInfo m memInfo
XGrpMemIntro memInfo -> xGrpMemIntro conn gInfo m memInfo
XGrpMemInv memId introInv -> xGrpMemInv gInfo m memId introInv
XGrpMemFwd memInfo introInv -> xGrpMemFwd gInfo m memInfo introInv
XGrpMemDel memId -> xGrpMemDel gInfo m memId
XGrpLeave -> xGrpLeave gInfo m
XGrpDel -> xGrpDel gInfo m
_ -> messageError $ "unsupported message: " <> T.pack (show chatMsgEvent)
ackMsgDeliveryEvent conn msgMeta
SENT msgId ->
sentMsgDeliveryEvent conn msgId
-- TODO print errors
MERR _ _ -> pure ()
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
processSndFileConn :: ACommand 'Agent -> Connection -> SndFileTransfer -> m ()
processSndFileConn agentMsg conn ft@SndFileTransfer {fileId, fileName, fileStatus} =
case agentMsg of
CONF confId connInfo -> do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
-- TODO save XFileAcpt message
XFileAcpt name
| name == fileName -> do
withStore $ \st -> updateSndFileStatus st ft FSAccepted
allowAgentConnection conn confId XOk
| otherwise -> messageError "x.file.acpt: fileName is different from expected"
_ -> messageError "CONF from file connection must have x.file.acpt"
CON -> do
withStore $ \st -> updateSndFileStatus st ft FSConnected
toView $ CRSndFileStart ft
sendFileChunk ft
SENT msgId -> do
withStore $ \st -> updateSndFileChunkSent st ft msgId
unless (fileStatus == FSCancelled) $ sendFileChunk ft
MERR _ err -> do
cancelSndFileTransfer ft
case err of
SMP SMP.AUTH -> unless (fileStatus == FSCancelled) $ toView $ CRSndFileRcvCancelled ft
_ -> throwChatError $ CEFileSend fileId err
MSG meta _ ->
withAckMessage agentConnId meta $ pure ()
-- TODO print errors
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
processRcvFileConn :: ACommand 'Agent -> Connection -> RcvFileTransfer -> m ()
processRcvFileConn agentMsg _conn ft@RcvFileTransfer {fileId, chunkSize} =
case agentMsg of
CON -> do
withStore $ \st -> updateRcvFileStatus st ft FSConnected
toView $ CRRcvFileStart ft
MSG meta@MsgMeta {recipient = (msgId, _), integrity} msgBody -> withAckMessage agentConnId meta $ do
parseFileChunk msgBody >>= \case
FileChunkCancel -> do
cancelRcvFileTransfer ft
toView $ CRRcvFileSndCancelled ft
FileChunk {chunkNo, chunkBytes = chunk} -> do
case integrity of
MsgOk -> pure ()
MsgError MsgDuplicate -> pure () -- TODO remove once agent removes duplicates
MsgError e ->
badRcvFileChunk ft $ "invalid file chunk number " <> show chunkNo <> ": " <> show e
withStore (\st -> createRcvFileChunk st ft chunkNo msgId) >>= \case
RcvChunkOk ->
if B.length chunk /= fromInteger chunkSize
then badRcvFileChunk ft "incorrect chunk size"
else appendFileChunk ft chunkNo chunk
RcvChunkFinal ->
if B.length chunk > fromInteger chunkSize
then badRcvFileChunk ft "incorrect chunk size"
else do
appendFileChunk ft chunkNo chunk
withStore $ \st -> do
updateRcvFileStatus st ft FSComplete
deleteRcvFileChunks st ft
toView $ CRRcvFileComplete ft
closeFileHandle fileId rcvFiles
withAgent (`deleteConnection` agentConnId)
RcvChunkDuplicate -> pure ()
RcvChunkError -> badRcvFileChunk ft $ "incorrect chunk number " <> show chunkNo
-- TODO print errors
MERR _ _ -> pure ()
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
processUserContactRequest :: ACommand 'Agent -> Connection -> UserContact -> m ()
processUserContactRequest agentMsg _conn UserContact {userContactLinkId} = case agentMsg of
REQ invId connInfo -> do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
XContact p xContactId_ -> profileContactRequest invId p xContactId_
XInfo p -> profileContactRequest invId p Nothing
-- TODO show/log error, other events in contact request
_ -> pure ()
-- TODO print errors
MERR _ _ -> pure ()
ERR _ -> pure ()
-- TODO add debugging output
_ -> pure ()
where
profileContactRequest :: InvitationId -> Profile -> Maybe XContactId -> m ()
profileContactRequest invId p xContactId_ = do
withStore (\st -> createOrUpdateContactRequest st userId userContactLinkId invId p xContactId_) >>= \case
Left contact -> toView $ CRContactRequestAlreadyAccepted contact
Right cReq@UserContactRequest {localDisplayName} -> do
(_, autoAccept) <- withStore $ \st -> getUserContactLink st userId
if autoAccept
then acceptContactRequest user cReq >>= toView . CRAcceptingContactRequest
else do
toView $ CRReceivedContactRequest cReq
showToast (localDisplayName <> "> ") "wants to connect to you"
withAckMessage :: ConnId -> MsgMeta -> m () -> m ()
withAckMessage cId MsgMeta {recipient = (msgId, _)} action =
action `E.finally` withAgent (\a -> ackMessage a cId msgId `catchError` \_ -> pure ())
ackMsgDeliveryEvent :: Connection -> MsgMeta -> m ()
ackMsgDeliveryEvent Connection {connId} MsgMeta {recipient = (msgId, _)} =
withStore $ \st -> createRcvMsgDeliveryEvent st connId msgId MDSRcvAcknowledged
sentMsgDeliveryEvent :: Connection -> AgentMsgId -> m ()
sentMsgDeliveryEvent Connection {connId} msgId =
withStore $ \st -> createSndMsgDeliveryEvent st connId msgId MDSSndSent
agentErrToItemStatus :: AgentErrorType -> CIStatus 'MDSnd
agentErrToItemStatus (SMP AUTH) = CISSndErrorAuth
agentErrToItemStatus err = CISSndError err
badRcvFileChunk :: RcvFileTransfer -> String -> m ()
badRcvFileChunk ft@RcvFileTransfer {fileStatus} err =
case fileStatus of
RFSCancelled _ -> pure ()
_ -> do
cancelRcvFileTransfer ft
throwChatError $ CEFileRcvChunk err
notifyMemberConnected :: GroupInfo -> GroupMember -> m ()
notifyMemberConnected gInfo m@GroupMember {localDisplayName = c} = do
toView $ CRConnectedToGroupMember gInfo m
let g = groupName' gInfo
setActive $ ActiveG g
showToast ("#" <> g) $ "member " <> c <> " is connected"
probeMatchingContacts :: Contact -> m ()
probeMatchingContacts ct = do
gVar <- asks idsDrg
(probe, probeId) <- withStore $ \st -> createSentProbe st gVar userId ct
void . sendDirectContactMessage ct $ XInfoProbe probe
cs <- withStore (\st -> getMatchingContacts st userId ct)
let probeHash = ProbeHash $ C.sha256Hash (unProbe probe)
forM_ cs $ \c -> sendProbeHash c probeHash probeId `catchError` const (pure ())
where
sendProbeHash :: Contact -> ProbeHash -> Int64 -> m ()
sendProbeHash c probeHash probeId = do
void . sendDirectContactMessage c $ XInfoProbeCheck probeHash
withStore $ \st -> createSentProbeHash st userId probeId c
messageWarning :: Text -> m ()
messageWarning = toView . CRMessageError "warning"
messageError :: Text -> m ()
messageError = toView . CRMessageError "error"
newContentMessage :: Contact -> MsgContent -> MessageId -> MsgMeta -> m ()
newContentMessage ct@Contact {localDisplayName = c} mc msgId msgMeta = do
ci <- saveRcvChatItem userId (CDDirectRcv ct) msgId msgMeta (CIRcvMsgContent mc)
toView . CRNewChatItem $ AChatItem SCTDirect SMDRcv (DirectChat ct) ci
checkIntegrity msgMeta $ toView . CRMsgIntegrityError
showToast (c <> "> ") $ msgContentText mc
setActive $ ActiveC c
newGroupContentMessage :: GroupInfo -> GroupMember -> MsgContent -> MessageId -> MsgMeta -> m ()
newGroupContentMessage gInfo m@GroupMember {localDisplayName = c} mc msgId msgMeta = do
ci <- saveRcvChatItem userId (CDGroupRcv gInfo m) msgId msgMeta (CIRcvMsgContent mc)
groupMsgToView gInfo ci msgMeta
let g = groupName' gInfo
showToast ("#" <> g <> " " <> c <> "> ") $ msgContentText mc
setActive $ ActiveG g
processFileInvitation :: Contact -> FileInvitation -> MessageId -> MsgMeta -> m ()
processFileInvitation ct@Contact {localDisplayName = c} fInv msgId msgMeta = do
-- TODO chunk size has to be sent as part of invitation
chSize <- asks $ fileChunkSize . config
ft@RcvFileTransfer {fileId} <- withStore $ \st -> createRcvFileTransfer st userId ct fInv chSize
ci <- saveRcvChatItem userId (CDDirectRcv ct) msgId msgMeta (CIRcvFileInvitation ft)
withStore $ \st -> updateFileTransferChatItemId st fileId $ chatItemId' ci
toView . CRNewChatItem $ AChatItem SCTDirect SMDRcv (DirectChat ct) ci
checkIntegrity msgMeta $ toView . CRMsgIntegrityError
showToast (c <> "> ") "wants to send a file"
setActive $ ActiveC c
processGroupFileInvitation :: GroupInfo -> GroupMember -> FileInvitation -> MessageId -> MsgMeta -> m ()
processGroupFileInvitation gInfo m@GroupMember {localDisplayName = c} fInv msgId msgMeta = do
chSize <- asks $ fileChunkSize . config
ft@RcvFileTransfer {fileId} <- withStore $ \st -> createRcvGroupFileTransfer st userId m fInv chSize
ci <- saveRcvChatItem userId (CDGroupRcv gInfo m) msgId msgMeta (CIRcvFileInvitation ft)
withStore $ \st -> updateFileTransferChatItemId st fileId $ chatItemId' ci
groupMsgToView gInfo ci msgMeta
let g = groupName' gInfo
showToast ("#" <> g <> " " <> c <> "> ") "wants to send a file"
setActive $ ActiveG g
groupMsgToView :: GroupInfo -> ChatItem 'CTGroup 'MDRcv -> MsgMeta -> m ()
groupMsgToView gInfo ci msgMeta = do
toView . CRNewChatItem $ AChatItem SCTGroup SMDRcv (GroupChat gInfo) ci
checkIntegrity msgMeta $ toView . CRMsgIntegrityError
processGroupInvitation :: Contact -> GroupInvitation -> m ()
processGroupInvitation ct@Contact {localDisplayName = c} inv@(GroupInvitation (MemberIdRole fromMemId fromRole) (MemberIdRole memId memRole) _ _) = do
when (fromRole < GRAdmin || fromRole < memRole) $ throwChatError (CEGroupContactRole c)
when (fromMemId == memId) $ throwChatError CEGroupDuplicateMemberId
gInfo@GroupInfo {localDisplayName = gName} <- withStore $ \st -> createGroupInvitation st user ct inv
toView $ CRReceivedGroupInvitation gInfo ct memRole
showToast ("#" <> gName <> " " <> c <> "> ") "invited you to join the group"
checkIntegrity :: MsgMeta -> (MsgErrorType -> m ()) -> m ()
checkIntegrity MsgMeta {integrity} action = case integrity of
MsgError e -> action e
MsgOk -> pure ()
xInfo :: Contact -> Profile -> m ()
xInfo c@Contact {profile = p} p' = unless (p == p') $ do
c' <- withStore $ \st -> updateContactProfile st userId c p'
toView $ CRContactUpdated c c'
xInfoProbe :: Contact -> Probe -> m ()
xInfoProbe c2 probe = do
r <- withStore $ \st -> matchReceivedProbe st userId c2 probe
forM_ r $ \c1 -> probeMatch c1 c2 probe
xInfoProbeCheck :: Contact -> ProbeHash -> m ()
xInfoProbeCheck c1 probeHash = do
r <- withStore $ \st -> matchReceivedProbeHash st userId c1 probeHash
forM_ r . uncurry $ probeMatch c1
probeMatch :: Contact -> Contact -> Probe -> m ()
probeMatch c1@Contact {profile = p1} c2@Contact {profile = p2} probe =
when (p1 == p2) $ do
void . sendDirectContactMessage c1 $ XInfoProbeOk probe
mergeContacts c1 c2
xInfoProbeOk :: Contact -> Probe -> m ()
xInfoProbeOk c1 probe = do
r <- withStore $ \st -> matchSentProbe st userId c1 probe
forM_ r $ \c2 -> mergeContacts c1 c2
mergeContacts :: Contact -> Contact -> m ()
mergeContacts to from = do
withStore $ \st -> mergeContactRecords st userId to from
toView $ CRContactsMerged to from
saveConnInfo :: Connection -> ConnInfo -> m ()
saveConnInfo activeConn connInfo = do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage connInfo
case chatMsgEvent of
XInfo p -> do
ct <- withStore $ \st -> createDirectContact st userId activeConn p
toView $ CRContactConnecting ct
-- TODO show/log error, other events in SMP confirmation
_ -> pure ()
xGrpMemNew :: GroupInfo -> GroupMember -> MemberInfo -> m ()
xGrpMemNew gInfo m memInfo@(MemberInfo memId _ _) = do
members <- withStore $ \st -> getGroupMembers st user gInfo
unless (sameMemberId memId $ membership gInfo) $
if isMember memId gInfo members
then messageError "x.grp.mem.new error: member already exists"
else do
newMember <- withStore $ \st -> createNewGroupMember st user gInfo memInfo GCPostMember GSMemAnnounced
toView $ CRJoinedGroupMemberConnecting gInfo m newMember
xGrpMemIntro :: Connection -> GroupInfo -> GroupMember -> MemberInfo -> m ()
xGrpMemIntro conn gInfo m memInfo@(MemberInfo memId _ _) = do
case memberCategory m of
GCHostMember -> do
members <- withStore $ \st -> getGroupMembers st user gInfo
if isMember memId gInfo members
then messageWarning "x.grp.mem.intro ignored: member already exists"
else do
(groupConnId, groupConnReq) <- withAgent (`createConnection` SCMInvitation)
(directConnId, directConnReq) <- withAgent (`createConnection` SCMInvitation)
newMember <- withStore $ \st -> createIntroReMember st user gInfo m memInfo groupConnId directConnId
let msg = XGrpMemInv memId IntroInvitation {groupConnReq, directConnReq}
void $ sendDirectMessage conn msg
withStore $ \st -> updateGroupMemberStatus st userId newMember GSMemIntroInvited
_ -> messageError "x.grp.mem.intro can be only sent by host member"
xGrpMemInv :: GroupInfo -> GroupMember -> MemberId -> IntroInvitation -> m ()
xGrpMemInv gInfo m memId introInv = do
case memberCategory m of
GCInviteeMember -> do
members <- withStore $ \st -> getGroupMembers st user gInfo
case find (sameMemberId memId) members of
Nothing -> messageError "x.grp.mem.inv error: referenced member does not exists"
Just reMember -> do
GroupMemberIntro {introId} <- withStore $ \st -> saveIntroInvitation st reMember m introInv
void $ sendXGrpMemInv reMember (XGrpMemFwd (memberInfo m) introInv) introId
_ -> messageError "x.grp.mem.inv can be only sent by invitee member"
xGrpMemFwd :: GroupInfo -> GroupMember -> MemberInfo -> IntroInvitation -> m ()
xGrpMemFwd gInfo@GroupInfo {membership} m memInfo@(MemberInfo memId _ _) introInv@IntroInvitation {groupConnReq, directConnReq} = do
members <- withStore $ \st -> getGroupMembers st user gInfo
toMember <- case find (sameMemberId memId) members of
-- TODO if the missed messages are correctly sent as soon as there is connection before anything else is sent
-- the situation when member does not exist is an error
-- member receiving x.grp.mem.fwd should have also received x.grp.mem.new prior to that.
-- For now, this branch compensates for the lack of delayed message delivery.
Nothing -> withStore $ \st -> createNewGroupMember st user gInfo memInfo GCPostMember GSMemAnnounced
Just m' -> pure m'
withStore $ \st -> saveMemberInvitation st toMember introInv
let msg = XGrpMemInfo (memberId (membership :: GroupMember)) profile
groupConnId <- withAgent $ \a -> joinConnection a groupConnReq $ directMessage msg
directConnId <- withAgent $ \a -> joinConnection a directConnReq $ directMessage msg
withStore $ \st -> createIntroToMemberContact st userId m toMember groupConnId directConnId
xGrpMemDel :: GroupInfo -> GroupMember -> MemberId -> m ()
xGrpMemDel gInfo@GroupInfo {membership} m memId = do
members <- withStore $ \st -> getGroupMembers st user gInfo
if memberId (membership :: GroupMember) == memId
then do
mapM_ deleteMemberConnection members
withStore $ \st -> updateGroupMemberStatus st userId membership GSMemRemoved
toView $ CRDeletedMemberUser gInfo m
else case find (sameMemberId memId) members of
Nothing -> messageError "x.grp.mem.del with unknown member ID"
Just member -> do
let mRole = memberRole (m :: GroupMember)
if mRole < GRAdmin || mRole < memberRole (member :: GroupMember)
then messageError "x.grp.mem.del with insufficient member permissions"
else do
deleteMemberConnection member
withStore $ \st -> updateGroupMemberStatus st userId member GSMemRemoved
toView $ CRDeletedMember gInfo m member
sameMemberId :: MemberId -> GroupMember -> Bool
sameMemberId memId GroupMember {memberId} = memId == memberId
xGrpLeave :: GroupInfo -> GroupMember -> m ()
xGrpLeave gInfo m = do
deleteMemberConnection m
withStore $ \st -> updateGroupMemberStatus st userId m GSMemLeft
toView $ CRLeftMember gInfo m
xGrpDel :: GroupInfo -> GroupMember -> m ()
xGrpDel gInfo m@GroupMember {memberRole} = do
when (memberRole /= GROwner) $ throwChatError CEGroupUserRole
ms <- withStore $ \st -> do
members <- getGroupMembers st user gInfo
updateGroupMemberStatus st userId (membership gInfo) GSMemGroupDeleted
pure members
mapM_ deleteMemberConnection ms
toView $ CRGroupDeleted gInfo m
parseChatMessage :: ByteString -> Either ChatError ChatMessage
parseChatMessage = first (ChatError . CEInvalidChatMessage) . strDecode
sendFileChunk :: ChatMonad m => SndFileTransfer -> m ()
sendFileChunk ft@SndFileTransfer {fileId, fileStatus, agentConnId = AgentConnId acId} =
unless (fileStatus == FSComplete || fileStatus == FSCancelled) $
withStore (`createSndFileChunk` ft) >>= \case
Just chunkNo -> sendFileChunkNo ft chunkNo
Nothing -> do
withStore $ \st -> do
updateSndFileStatus st ft FSComplete
deleteSndFileChunks st ft
toView $ CRSndFileComplete ft
closeFileHandle fileId sndFiles
withAgent (`deleteConnection` acId)
sendFileChunkNo :: ChatMonad m => SndFileTransfer -> Integer -> m ()
sendFileChunkNo ft@SndFileTransfer {agentConnId = AgentConnId acId} chunkNo = do
chunkBytes <- readFileChunk ft chunkNo
msgId <- withAgent $ \a -> sendMessage a acId $ smpEncode FileChunk {chunkNo, chunkBytes}
withStore $ \st -> updateSndFileChunkMsg st ft chunkNo msgId
readFileChunk :: ChatMonad m => SndFileTransfer -> Integer -> m ByteString
readFileChunk SndFileTransfer {fileId, filePath, chunkSize} chunkNo =
read_ `E.catch` (throwChatError . CEFileRead filePath . (show :: E.SomeException -> String))
where
read_ = do
h <- getFileHandle fileId filePath sndFiles ReadMode
pos <- hTell h
let pos' = (chunkNo - 1) * chunkSize
when (pos /= pos') $ hSeek h AbsoluteSeek pos'
liftIO . B.hGet h $ fromInteger chunkSize
data FileChunk = FileChunk {chunkNo :: Integer, chunkBytes :: ByteString} | FileChunkCancel
instance Encoding FileChunk where
smpEncode = \case
FileChunk {chunkNo, chunkBytes} -> smpEncode ('F', fromIntegral chunkNo :: Word32, Tail chunkBytes)
FileChunkCancel -> smpEncode 'C'
smpP =
smpP >>= \case
'F' -> do
chunkNo <- fromIntegral <$> smpP @Word32
Tail chunkBytes <- smpP
pure FileChunk {chunkNo, chunkBytes}
'C' -> pure FileChunkCancel
_ -> fail "bad FileChunk"
parseFileChunk :: ChatMonad m => ByteString -> m FileChunk
parseFileChunk msg =
liftEither . first (ChatError . CEFileRcvChunk) $ parseAll smpP msg
appendFileChunk :: ChatMonad m => RcvFileTransfer -> Integer -> ByteString -> m ()
appendFileChunk ft@RcvFileTransfer {fileId, fileStatus} chunkNo chunk =
case fileStatus of
RFSConnected RcvFileInfo {filePath} -> append_ filePath
RFSCancelled _ -> pure ()
_ -> throwChatError $ CEFileInternal "receiving file transfer not in progress"
where
append_ fPath = do
h <- getFileHandle fileId fPath rcvFiles AppendMode
E.try (liftIO $ B.hPut h chunk >> hFlush h) >>= \case
Left (e :: E.SomeException) -> throwChatError . CEFileWrite fPath $ show e
Right () -> withStore $ \st -> updatedRcvFileChunkStored st ft chunkNo
getFileHandle :: ChatMonad m => Int64 -> FilePath -> (ChatController -> TVar (Map Int64 Handle)) -> IOMode -> m Handle
getFileHandle fileId filePath files ioMode = do
fs <- asks files
h_ <- M.lookup fileId <$> readTVarIO fs
maybe (newHandle fs) pure h_
where
newHandle fs = do
-- TODO handle errors
h <- liftIO (openFile filePath ioMode)
atomically . modifyTVar fs $ M.insert fileId h
pure h
isFileActive :: ChatMonad m => Int64 -> (ChatController -> TVar (Map Int64 Handle)) -> m Bool
isFileActive fileId files = do
fs <- asks files
isJust . M.lookup fileId <$> readTVarIO fs
cancelRcvFileTransfer :: ChatMonad m => RcvFileTransfer -> m ()
cancelRcvFileTransfer ft@RcvFileTransfer {fileId, fileStatus} = do
closeFileHandle fileId rcvFiles
withStore $ \st -> do
updateRcvFileStatus st ft FSCancelled
deleteRcvFileChunks st ft
case fileStatus of
RFSAccepted RcvFileInfo {agentConnId = AgentConnId acId} -> withAgent (`suspendConnection` acId)
RFSConnected RcvFileInfo {agentConnId = AgentConnId acId} -> withAgent (`suspendConnection` acId)
_ -> pure ()
cancelSndFileTransfer :: ChatMonad m => SndFileTransfer -> m ()
cancelSndFileTransfer ft@SndFileTransfer {agentConnId = AgentConnId acId, fileStatus} =
unless (fileStatus == FSCancelled || fileStatus == FSComplete) $ do
withStore $ \st -> do
updateSndFileStatus st ft FSCancelled
deleteSndFileChunks st ft
withAgent $ \a -> do
void (sendMessage a acId $ smpEncode FileChunkCancel) `catchError` \_ -> pure ()
suspendConnection a acId
closeFileHandle :: ChatMonad m => Int64 -> (ChatController -> TVar (Map Int64 Handle)) -> m ()
closeFileHandle fileId files = do
fs <- asks files
h_ <- atomically . stateTVar fs $ \m -> (M.lookup fileId m, M.delete fileId m)
mapM_ hClose h_ `E.catch` \(_ :: E.SomeException) -> pure ()
throwChatError :: ChatMonad m => ChatErrorType -> m a
throwChatError = throwError . ChatError
deleteMemberConnection :: ChatMonad m => GroupMember -> m ()
deleteMemberConnection m@GroupMember {activeConn} = do
-- User {userId} <- asks currentUser
withAgent (forM_ (memberConnId m) . deleteConnection) `catchError` const (pure ())
-- withStore $ \st -> deleteGroupMemberConnection st userId m
forM_ activeConn $ \conn -> withStore $ \st -> updateConnectionStatus st conn ConnDeleted
sendDirectContactMessage :: ChatMonad m => Contact -> ChatMsgEvent -> m MessageId
sendDirectContactMessage ct@Contact {activeConn = conn@Connection {connStatus}} chatMsgEvent = do
if connStatus == ConnReady || connStatus == ConnSndReady
then sendDirectMessage conn chatMsgEvent
else throwChatError $ CEContactNotReady ct
sendDirectMessage :: ChatMonad m => Connection -> ChatMsgEvent -> m MessageId
sendDirectMessage conn chatMsgEvent = do
(msgId, msgBody) <- createSndMessage chatMsgEvent
deliverMessage conn msgBody msgId
pure msgId
createSndMessage :: ChatMonad m => ChatMsgEvent -> m (MessageId, MsgBody)
createSndMessage chatMsgEvent = do
let msgBody = directMessage chatMsgEvent
newMsg = NewMessage {direction = MDSnd, cmEventTag = toCMEventTag chatMsgEvent, msgBody}
msgId <- withStore $ \st -> createNewMessage st newMsg
pure (msgId, msgBody)
directMessage :: ChatMsgEvent -> ByteString
directMessage chatMsgEvent = strEncode ChatMessage {chatMsgEvent}
deliverMessage :: ChatMonad m => Connection -> MsgBody -> MessageId -> m ()
deliverMessage conn@Connection {connId} msgBody msgId = do
agentMsgId <- withAgent $ \a -> sendMessage a (aConnId conn) msgBody
let sndMsgDelivery = SndMsgDelivery {connId, agentMsgId}
withStore $ \st -> createSndMsgDelivery st sndMsgDelivery msgId
sendGroupMessage :: ChatMonad m => [GroupMember] -> ChatMsgEvent -> m MessageId
sendGroupMessage members chatMsgEvent =
sendGroupMessage' members chatMsgEvent Nothing $ pure ()
sendXGrpMemInv :: ChatMonad m => GroupMember -> ChatMsgEvent -> Int64 -> m MessageId
sendXGrpMemInv reMember chatMsgEvent introId =
sendGroupMessage' [reMember] chatMsgEvent (Just introId) $
withStore (\st -> updateIntroStatus st introId GMIntroInvForwarded)
sendGroupMessage' :: ChatMonad m => [GroupMember] -> ChatMsgEvent -> Maybe Int64 -> m () -> m MessageId
sendGroupMessage' members chatMsgEvent introId_ postDeliver = do
(msgId, msgBody) <- createSndMessage chatMsgEvent
-- TODO collect failed deliveries into a single error
forM_ (filter memberCurrent members) $ \m@GroupMember {groupMemberId} ->
case memberConn m of
Nothing -> withStore $ \st -> createPendingGroupMessage st groupMemberId msgId introId_
Just conn@Connection {connStatus} ->
if not (connStatus == ConnSndReady || connStatus == ConnReady)
then unless (connStatus == ConnDeleted) $ withStore (\st -> createPendingGroupMessage st groupMemberId msgId introId_)
else (deliverMessage conn msgBody msgId >> postDeliver) `catchError` const (pure ())
pure msgId
sendPendingGroupMessages :: ChatMonad m => GroupMember -> Connection -> m ()
sendPendingGroupMessages GroupMember {groupMemberId, localDisplayName} conn = do
pendingMessages <- withStore $ \st -> getPendingGroupMessages st groupMemberId
-- TODO ensure order - pending messages interleave with user input messages
forM_ pendingMessages $ \PendingGroupMessage {msgId, cmEventTag, msgBody, introId_} -> do
deliverMessage conn msgBody msgId
withStore (\st -> deletePendingGroupMessage st groupMemberId msgId)
when (cmEventTag == XGrpMemFwd_) $ case introId_ of
Nothing -> throwChatError $ CEGroupMemberIntroNotFound localDisplayName
Just introId -> withStore (\st -> updateIntroStatus st introId GMIntroInvForwarded)
saveRcvMSG :: ChatMonad m => Connection -> MsgMeta -> MsgBody -> m (MessageId, ChatMsgEvent)
saveRcvMSG Connection {connId} agentMsgMeta msgBody = do
ChatMessage {chatMsgEvent} <- liftEither $ parseChatMessage msgBody
let agentMsgId = fst $ recipient agentMsgMeta
cmEventTag = toCMEventTag chatMsgEvent
newMsg = NewMessage {direction = MDRcv, cmEventTag, msgBody}
rcvMsgDelivery = RcvMsgDelivery {connId, agentMsgId, agentMsgMeta}
msgId <- withStore $ \st -> createNewMessageAndRcvMsgDelivery st newMsg rcvMsgDelivery
pure (msgId, chatMsgEvent)
sendDirectChatItem :: ChatMonad m => UserId -> Contact -> ChatMsgEvent -> CIContent 'MDSnd -> m (ChatItem 'CTDirect 'MDSnd)
sendDirectChatItem userId ct chatMsgEvent ciContent = do
msgId <- sendDirectContactMessage ct chatMsgEvent
saveSndChatItem userId (CDDirectSnd ct) msgId ciContent
sendGroupChatItem :: ChatMonad m => UserId -> Group -> ChatMsgEvent -> CIContent 'MDSnd -> m (ChatItem 'CTGroup 'MDSnd)
sendGroupChatItem userId (Group g ms) chatMsgEvent ciContent = do
msgId <- sendGroupMessage ms chatMsgEvent
saveSndChatItem userId (CDGroupSnd g) msgId ciContent
saveSndChatItem :: ChatMonad m => UserId -> ChatDirection c 'MDSnd -> MessageId -> CIContent 'MDSnd -> m (ChatItem c 'MDSnd)
saveSndChatItem userId cd msgId ciContent = do
createdAt <- liftIO getCurrentTime
saveChatItem userId cd $ mkNewChatItem ciContent msgId createdAt createdAt
saveRcvChatItem :: ChatMonad m => UserId -> ChatDirection c 'MDRcv -> MessageId -> MsgMeta -> CIContent 'MDRcv -> m (ChatItem c 'MDRcv)
saveRcvChatItem userId cd msgId MsgMeta {broker = (_, brokerTs)} ciContent = do
createdAt <- liftIO getCurrentTime
saveChatItem userId cd $ mkNewChatItem ciContent msgId brokerTs createdAt
saveChatItem :: (ChatMonad m, MsgDirectionI d) => UserId -> ChatDirection c d -> NewChatItem d -> m (ChatItem c d)
saveChatItem userId cd ci@NewChatItem {itemContent, itemTs, itemText, createdAt} = do
tz <- liftIO getCurrentTimeZone
ciId <- withStore $ \st -> createNewChatItem st userId cd ci
let ciMeta = mkCIMeta ciId itemText ciStatusNew tz itemTs createdAt
pure $ ChatItem (toCIDirection cd) ciMeta itemContent $ parseMaybeMarkdownList itemText
mkNewChatItem :: forall d. MsgDirectionI d => CIContent d -> MessageId -> UTCTime -> UTCTime -> NewChatItem d
mkNewChatItem itemContent msgId itemTs createdAt =
NewChatItem
{ createdByMsgId = if msgId == 0 then Nothing else Just msgId,
itemSent = msgDirection @d,
itemTs,
itemContent,
itemText = ciContentToText itemContent,
itemStatus = ciStatusNew,
createdAt
}
allowAgentConnection :: ChatMonad m => Connection -> ConfirmationId -> ChatMsgEvent -> m ()
allowAgentConnection conn confId msg = do
withAgent $ \a -> allowConnection a (aConnId conn) confId $ directMessage msg
withStore $ \st -> updateConnectionStatus st conn ConnAccepted
getCreateActiveUser :: SQLiteStore -> IO User
getCreateActiveUser st = do
user <-
getUsers st >>= \case
[] -> newUser
users -> maybe (selectUser users) pure (find activeUser users)
putStrLn $ "Current user: " <> userStr user
pure user
where
newUser :: IO User
newUser = do
putStrLn
"No user profiles found, it will be created now.\n\
\Please choose your display name and your full name.\n\
\They will be sent to your contacts when you connect.\n\
\They are only stored on your device and you can change them later."
loop
where
loop = do
displayName <- getContactName
fullName <- T.pack <$> getWithPrompt "full name (optional)"
liftIO (runExceptT $ createUser st Profile {displayName, fullName} True) >>= \case
Left SEDuplicateName -> do
putStrLn "chosen display name is already used by another profile on this device, choose another one"
loop
Left e -> putStrLn ("database error " <> show e) >> exitFailure
Right user -> pure user
selectUser :: [User] -> IO User
selectUser [user] = do
liftIO $ setActiveUser st (userId user)
pure user
selectUser users = do
putStrLn "Select user profile:"
forM_ (zip [1 ..] users) $ \(n :: Int, user) -> putStrLn $ show n <> " - " <> userStr user
loop
where
loop = do
nStr <- getWithPrompt $ "user profile number (1 .. " <> show (length users) <> ")"
case readMaybe nStr :: Maybe Int of
Nothing -> putStrLn "invalid user number" >> loop
Just n
| n <= 0 || n > length users -> putStrLn "invalid user number" >> loop
| otherwise -> do
let user = users !! (n - 1)
liftIO $ setActiveUser st (userId user)
pure user
userStr :: User -> String
userStr User {localDisplayName, profile = Profile {fullName}} =
T.unpack $ localDisplayName <> if T.null fullName || localDisplayName == fullName then "" else " (" <> fullName <> ")"
getContactName :: IO ContactName
getContactName = do
displayName <- getWithPrompt "display name (no spaces)"
if null displayName || isJust (find (== ' ') displayName)
then putStrLn "display name has space(s), choose another one" >> getContactName
else pure $ T.pack displayName
getWithPrompt :: String -> IO String
getWithPrompt s = putStr (s <> ": ") >> hFlush stdout >> getLine
showToast :: (MonadUnliftIO m, MonadReader ChatController m) => Text -> Text -> m ()
showToast title text = atomically . (`writeTBQueue` Notification {title, text}) =<< asks notifyQ
notificationSubscriber :: (MonadUnliftIO m, MonadReader ChatController m) => m ()
notificationSubscriber = do
ChatController {notifyQ, sendNotification} <- ask
forever $ atomically (readTBQueue notifyQ) >>= liftIO . sendNotification
withUser' :: ChatMonad m => (User -> m a) -> m a
withUser' action =
asks currentUser
>>= readTVarIO
>>= maybe (throwChatError CENoActiveUser) action
withUser :: ChatMonad m => (User -> m a) -> m a
withUser action = withUser' $ \user ->
ifM chatStarted (action user) (throwChatError CEChatNotStarted)
where
chatStarted = fmap isJust . readTVarIO =<< asks agentAsync
withAgent :: ChatMonad m => (AgentClient -> ExceptT AgentErrorType m a) -> m a
withAgent action =
asks smpAgent
>>= runExceptT . action
>>= liftEither . first ChatErrorAgent
withStore ::
ChatMonad m =>
(forall m'. (MonadUnliftIO m', MonadError StoreError m') => SQLiteStore -> m' a) ->
m a
withStore action =
asks chatStore
>>= runExceptT . action
>>= liftEither . first ChatErrorStore
chatCommandP :: Parser ChatCommand
chatCommandP =
("/user " <|> "/u ") *> (CreateActiveUser <$> userProfile)
<|> ("/user" <|> "/u") $> ShowActiveUser
<|> "/_start" $> StartChat
<|> "/_get chats" $> APIGetChats
<|> "/_get chat " *> (APIGetChat <$> chatTypeP <*> A.decimal <* A.space <*> chatPaginationP)
<|> "/_get items count=" *> (APIGetChatItems <$> A.decimal)
<|> "/_send " *> (APISendMessage <$> chatTypeP <*> A.decimal <* A.space <*> msgContentP)
<|> "/_read chat " *> (APIChatRead <$> chatTypeP <*> A.decimal <* A.space <*> ((,) <$> ("from=" *> A.decimal) <* A.space <*> ("to=" *> A.decimal)))
<|> "/_delete " *> (APIDeleteChat <$> chatTypeP <*> A.decimal)
<|> "/_accept " *> (APIAcceptContact <$> A.decimal)
<|> "/_reject " *> (APIRejectContact <$> A.decimal)
<|> ("/help files" <|> "/help file" <|> "/hf") $> ChatHelp HSFiles
<|> ("/help groups" <|> "/help group" <|> "/hg") $> ChatHelp HSGroups
<|> ("/help address" <|> "/ha") $> ChatHelp HSMyAddress
<|> ("/help" <|> "/h") $> ChatHelp HSMain
<|> ("/group #" <|> "/group " <|> "/g #" <|> "/g ") *> (NewGroup <$> groupProfile)
<|> ("/add #" <|> "/add " <|> "/a #" <|> "/a ") *> (AddMember <$> displayName <* A.space <*> displayName <*> memberRole)
<|> ("/join #" <|> "/join " <|> "/j #" <|> "/j ") *> (JoinGroup <$> displayName)
<|> ("/remove #" <|> "/remove " <|> "/rm #" <|> "/rm ") *> (RemoveMember <$> displayName <* A.space <*> displayName)
<|> ("/leave #" <|> "/leave " <|> "/l #" <|> "/l ") *> (LeaveGroup <$> displayName)
<|> ("/delete #" <|> "/d #") *> (DeleteGroup <$> displayName)
<|> ("/members #" <|> "/members " <|> "/ms #" <|> "/ms ") *> (ListMembers <$> displayName)
<|> ("/groups" <|> "/gs") $> ListGroups
<|> A.char '#' *> (SendGroupMessage <$> displayName <* A.space <*> A.takeByteString)
<|> ("/contacts" <|> "/cs") $> ListContacts
<|> ("/connect " <|> "/c ") *> (Connect <$> ((Just <$> strP) <|> A.takeByteString $> Nothing))
<|> ("/connect" <|> "/c") $> AddContact
<|> ("/delete @" <|> "/delete " <|> "/d @" <|> "/d ") *> (DeleteContact <$> displayName)
<|> A.char '@' *> (SendMessage <$> displayName <* A.space <*> A.takeByteString)
<|> ("/file #" <|> "/f #") *> (SendGroupFile <$> displayName <* A.space <*> filePath)
<|> ("/file @" <|> "/file " <|> "/f @" <|> "/f ") *> (SendFile <$> displayName <* A.space <*> filePath)
<|> ("/freceive " <|> "/fr ") *> (ReceiveFile <$> A.decimal <*> optional (A.space *> filePath))
<|> ("/fcancel " <|> "/fc ") *> (CancelFile <$> A.decimal)
<|> ("/fstatus " <|> "/fs ") *> (FileStatus <$> A.decimal)
<|> "/simplex" $> ConnectAdmin
<|> ("/address" <|> "/ad") $> CreateMyAddress
<|> ("/delete_address" <|> "/da") $> DeleteMyAddress
<|> ("/show_address" <|> "/sa") $> ShowMyAddress
<|> "/auto_accept " *> (AddressAutoAccept <$> onOffP)
<|> ("/accept @" <|> "/accept " <|> "/ac @" <|> "/ac ") *> (AcceptContact <$> displayName)
<|> ("/reject @" <|> "/reject " <|> "/rc @" <|> "/rc ") *> (RejectContact <$> displayName)
<|> ("/markdown" <|> "/m") $> ChatHelp HSMarkdown
<|> ("/welcome" <|> "/w") $> Welcome
<|> ("/profile " <|> "/p ") *> (UpdateProfile <$> userProfile)
<|> ("/profile" <|> "/p") $> ShowProfile
<|> ("/quit" <|> "/q" <|> "/exit") $> QuitChat
<|> ("/version" <|> "/v") $> ShowVersion
where
chatTypeP = A.char '@' $> CTDirect <|> A.char '#' $> CTGroup
chatPaginationP =
(CPLast <$ "count=" <*> A.decimal)
<|> (CPAfter <$ "after=" <*> A.decimal <* A.space <* "count=" <*> A.decimal)
<|> (CPBefore <$ "before=" <*> A.decimal <* A.space <* "count=" <*> A.decimal)
msgContentP = "text " *> (MCText . safeDecodeUtf8 <$> A.takeByteString)
displayName = safeDecodeUtf8 <$> (B.cons <$> A.satisfy refChar <*> A.takeTill (== ' '))
refChar c = c > ' ' && c /= '#' && c /= '@'
onOffP = ("on" $> True) <|> ("off" $> False)
userProfile = do
cName <- displayName
fullName <- fullNameP cName
pure Profile {displayName = cName, fullName}
groupProfile = do
gName <- displayName
fullName <- fullNameP gName
pure GroupProfile {displayName = gName, fullName}
fullNameP name = do
n <- (A.space *> A.takeByteString) <|> pure ""
pure $ if B.null n then name else safeDecodeUtf8 n
filePath = T.unpack . safeDecodeUtf8 <$> A.takeByteString
memberRole =
(" owner" $> GROwner)
<|> (" admin" $> GRAdmin)
<|> (" member" $> GRMember)
<|> pure GRAdmin
adminContactReq :: ConnReqContact
adminContactReq =
either error id $ strDecode "https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23MCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%3D"