mirror of
https://github.com/simplex-chat/simplex-chat.git
synced 2026-10-22 21:52:28 +00:00
core: split Store.hs to multiple files for faster re-compilation (#2589)
* core: split Store.hs to multiple files for faster re-compilation * remove unused compiler pragmas
This commit is contained in:
1 parent
9fbcc2b5bb
commit
e1370e8f3c
15 files changed
+5843
-5607
No files matched your search
@@ -0,0 +1,332 @@
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE DuplicateRecordFields #-}
|
||||
{-# LANGUAGE LambdaCase #-}
|
||||
{-# LANGUAGE NamedFieldPuns #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE QuasiQuotes #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Simplex.Chat.Store.Shared where
|
||||
|
||||
import Control.Concurrent.STM (stateTVar)
|
||||
import Control.Exception (Exception)
|
||||
import qualified Control.Exception as E
|
||||
import Control.Monad.Except
|
||||
import Crypto.Random (ChaChaDRG, randomBytesGenerate)
|
||||
import Data.Aeson (ToJSON)
|
||||
import qualified Data.Aeson as J
|
||||
import Data.ByteString.Char8 (ByteString)
|
||||
import qualified Data.ByteString.Base64 as B64
|
||||
import Data.Int (Int64)
|
||||
import Data.Maybe (fromMaybe, isJust, listToMaybe)
|
||||
import Data.Text (Text)
|
||||
import qualified Data.Text as T
|
||||
import Data.Time.Clock (UTCTime (..), getCurrentTime)
|
||||
import Database.SQLite.Simple (NamedParam (..), Only (..), Query, SQLError, (:.) (..))
|
||||
import qualified Database.SQLite.Simple as DB
|
||||
import Database.SQLite.Simple.QQ (sql)
|
||||
import GHC.Generics (Generic)
|
||||
import Simplex.Chat.Messages
|
||||
import Simplex.Chat.Protocol
|
||||
import Simplex.Chat.Types
|
||||
import Simplex.Messaging.Agent.Protocol (AgentMsgId, ConnId, UserId)
|
||||
import Simplex.Messaging.Agent.Store.SQLite (firstRow, maybeFirstRow)
|
||||
import Simplex.Messaging.Parsers (dropPrefix, sumTypeJSON)
|
||||
import UnliftIO.STM
|
||||
|
||||
-- These error type constructors must be added to mobile apps
|
||||
data StoreError
|
||||
= SEDuplicateName
|
||||
| SEUserNotFound {userId :: UserId}
|
||||
| SEUserNotFoundByName {contactName :: ContactName}
|
||||
| SEUserNotFoundByContactId {contactId :: ContactId}
|
||||
| SEUserNotFoundByGroupId {groupId :: GroupId}
|
||||
| SEUserNotFoundByFileId {fileId :: FileTransferId}
|
||||
| SEUserNotFoundByContactRequestId {contactRequestId :: Int64}
|
||||
| SEContactNotFound {contactId :: ContactId}
|
||||
| SEContactNotFoundByName {contactName :: ContactName}
|
||||
| SEContactNotReady {contactName :: ContactName}
|
||||
| SEDuplicateContactLink
|
||||
| SEUserContactLinkNotFound
|
||||
| SEContactRequestNotFound {contactRequestId :: Int64}
|
||||
| SEContactRequestNotFoundByName {contactName :: ContactName}
|
||||
| SEGroupNotFound {groupId :: GroupId}
|
||||
| SEGroupNotFoundByName {groupName :: GroupName}
|
||||
| SEGroupMemberNameNotFound {groupId :: GroupId, groupMemberName :: ContactName}
|
||||
| SEGroupMemberNotFound {groupMemberId :: GroupMemberId}
|
||||
| SEGroupWithoutUser
|
||||
| SEDuplicateGroupMember
|
||||
| SEGroupAlreadyJoined
|
||||
| SEGroupInvitationNotFound
|
||||
| SESndFileNotFound {fileId :: FileTransferId}
|
||||
| SESndFileInvalid {fileId :: FileTransferId}
|
||||
| SERcvFileNotFound {fileId :: FileTransferId}
|
||||
| SERcvFileDescrNotFound {fileId :: FileTransferId}
|
||||
| SEFileNotFound {fileId :: FileTransferId}
|
||||
| SERcvFileInvalid {fileId :: FileTransferId}
|
||||
| SERcvFileInvalidDescrPart
|
||||
| SESharedMsgIdNotFoundByFileId {fileId :: FileTransferId}
|
||||
| SEFileIdNotFoundBySharedMsgId {sharedMsgId :: SharedMsgId}
|
||||
| SESndFileNotFoundXFTP {agentSndFileId :: AgentSndFileId}
|
||||
| SERcvFileNotFoundXFTP {agentRcvFileId :: AgentRcvFileId}
|
||||
| SEConnectionNotFound {agentConnId :: AgentConnId}
|
||||
| SEConnectionNotFoundById {connId :: Int64}
|
||||
| SEPendingConnectionNotFound {connId :: Int64}
|
||||
| SEIntroNotFound
|
||||
| SEUniqueID
|
||||
| SEInternalError {message :: String}
|
||||
| SENoMsgDelivery {connId :: Int64, agentMsgId :: AgentMsgId}
|
||||
| SEBadChatItem {itemId :: ChatItemId}
|
||||
| SEChatItemNotFound {itemId :: ChatItemId}
|
||||
| SEChatItemNotFoundByText {text :: Text}
|
||||
| SEChatItemSharedMsgIdNotFound {sharedMsgId :: SharedMsgId}
|
||||
| SEChatItemNotFoundByFileId {fileId :: FileTransferId}
|
||||
| SEChatItemNotFoundByGroupId {groupId :: GroupId}
|
||||
| SEProfileNotFound {profileId :: Int64}
|
||||
| SEDuplicateGroupLink {groupInfo :: GroupInfo}
|
||||
| SEGroupLinkNotFound {groupInfo :: GroupInfo}
|
||||
| SEHostMemberIdNotFound {groupId :: Int64}
|
||||
| SEContactNotFoundByFileId {fileId :: FileTransferId}
|
||||
deriving (Show, Exception, Generic)
|
||||
|
||||
instance ToJSON StoreError where
|
||||
toJSON = J.genericToJSON . sumTypeJSON $ dropPrefix "SE"
|
||||
toEncoding = J.genericToEncoding . sumTypeJSON $ dropPrefix "SE"
|
||||
|
||||
insertedRowId :: DB.Connection -> IO Int64
|
||||
insertedRowId db = fromOnly . head <$> DB.query_ db "SELECT last_insert_rowid()"
|
||||
|
||||
checkConstraint :: StoreError -> ExceptT StoreError IO a -> ExceptT StoreError IO a
|
||||
checkConstraint err action = ExceptT $ runExceptT action `E.catch` (pure . Left . handleSQLError err)
|
||||
|
||||
handleSQLError :: StoreError -> SQLError -> StoreError
|
||||
handleSQLError err e
|
||||
| DB.sqlError e == DB.ErrorConstraint = err
|
||||
| otherwise = SEInternalError $ show e
|
||||
|
||||
fileInfoQuery :: Query
|
||||
fileInfoQuery =
|
||||
[sql|
|
||||
SELECT f.file_id, f.ci_file_status, f.file_path
|
||||
FROM chat_items i
|
||||
JOIN files f ON f.chat_item_id = i.chat_item_id
|
||||
|]
|
||||
|
||||
toFileInfo :: (Int64, Maybe ACIFileStatus, Maybe FilePath) -> CIFileInfo
|
||||
toFileInfo (fileId, fileStatus, filePath) = CIFileInfo {fileId, fileStatus, filePath}
|
||||
|
||||
type EntityIdsRow = (Maybe Int64, Maybe Int64, Maybe Int64, Maybe Int64, Maybe Int64)
|
||||
|
||||
type ConnectionRow = (Int64, ConnId, Int, Maybe Int64, Maybe Int64, Bool, Maybe GroupLinkId, Maybe Int64, ConnStatus, ConnType, LocalAlias) :. EntityIdsRow :. (UTCTime, Maybe Text, Maybe UTCTime, Int)
|
||||
|
||||
type MaybeConnectionRow = (Maybe Int64, Maybe ConnId, Maybe Int, Maybe Int64, Maybe Int64, Maybe Bool, Maybe GroupLinkId, Maybe Int64, Maybe ConnStatus, Maybe ConnType, Maybe LocalAlias) :. EntityIdsRow :. (Maybe UTCTime, Maybe Text, Maybe UTCTime, Maybe Int)
|
||||
|
||||
toConnection :: ConnectionRow -> Connection
|
||||
toConnection ((connId, acId, connLevel, viaContact, viaUserContactLink, viaGroupLink, groupLinkId, customUserProfileId, connStatus, connType, localAlias) :. (contactId, groupMemberId, sndFileId, rcvFileId, userContactLinkId) :. (createdAt, code_, verifiedAt_, authErrCounter)) =
|
||||
let entityId = entityId_ connType
|
||||
connectionCode = SecurityCode <$> code_ <*> verifiedAt_
|
||||
in Connection {connId, agentConnId = AgentConnId acId, connLevel, viaContact, viaUserContactLink, viaGroupLink, groupLinkId, customUserProfileId, connStatus, connType, localAlias, entityId, connectionCode, authErrCounter, createdAt}
|
||||
where
|
||||
entityId_ :: ConnType -> Maybe Int64
|
||||
entityId_ ConnContact = contactId
|
||||
entityId_ ConnMember = groupMemberId
|
||||
entityId_ ConnRcvFile = rcvFileId
|
||||
entityId_ ConnSndFile = sndFileId
|
||||
entityId_ ConnUserContact = userContactLinkId
|
||||
|
||||
toMaybeConnection :: MaybeConnectionRow -> Maybe Connection
|
||||
toMaybeConnection ((Just connId, Just agentConnId, Just connLevel, viaContact, viaUserContactLink, Just viaGroupLink, groupLinkId, customUserProfileId, Just connStatus, Just connType, Just localAlias) :. (contactId, groupMemberId, sndFileId, rcvFileId, userContactLinkId) :. (Just createdAt, code_, verifiedAt_, Just authErrCounter)) =
|
||||
Just $ toConnection ((connId, agentConnId, connLevel, viaContact, viaUserContactLink, viaGroupLink, groupLinkId, customUserProfileId, connStatus, connType, localAlias) :. (contactId, groupMemberId, sndFileId, rcvFileId, userContactLinkId) :. (createdAt, code_, verifiedAt_, authErrCounter))
|
||||
toMaybeConnection _ = Nothing
|
||||
|
||||
createConnection_ :: DB.Connection -> UserId -> ConnType -> Maybe Int64 -> ConnId -> Maybe ContactId -> Maybe Int64 -> Maybe ProfileId -> Int -> UTCTime -> IO Connection
|
||||
createConnection_ db userId connType entityId acId viaContact viaUserContactLink customUserProfileId connLevel currentTs = do
|
||||
viaLinkGroupId :: Maybe Int64 <- fmap join . forM viaUserContactLink $ \ucLinkId ->
|
||||
maybeFirstRow fromOnly $ DB.query db "SELECT group_id FROM user_contact_links WHERE user_id = ? AND user_contact_link_id = ? AND group_id IS NOT NULL" (userId, ucLinkId)
|
||||
let viaGroupLink = isJust viaLinkGroupId
|
||||
DB.execute
|
||||
db
|
||||
[sql|
|
||||
INSERT INTO connections (
|
||||
user_id, agent_conn_id, conn_level, via_contact, via_user_contact_link, via_group_link, custom_user_profile_id, conn_status, conn_type,
|
||||
contact_id, group_member_id, snd_file_id, rcv_file_id, user_contact_link_id, created_at, updated_at
|
||||
) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
|
||||
|]
|
||||
( (userId, acId, connLevel, viaContact, viaUserContactLink, viaGroupLink, customUserProfileId, ConnNew, connType)
|
||||
:. (ent ConnContact, ent ConnMember, ent ConnSndFile, ent ConnRcvFile, ent ConnUserContact, currentTs, currentTs)
|
||||
)
|
||||
connId <- insertedRowId db
|
||||
pure Connection {connId, agentConnId = AgentConnId acId, connType, entityId, viaContact, viaUserContactLink, viaGroupLink, groupLinkId = Nothing, customUserProfileId, connLevel, connStatus = ConnNew, localAlias = "", createdAt = currentTs, connectionCode = Nothing, authErrCounter = 0}
|
||||
where
|
||||
ent ct = if connType == ct then entityId else Nothing
|
||||
|
||||
setCommandConnId :: DB.Connection -> User -> CommandId -> Int64 -> IO ()
|
||||
setCommandConnId db User {userId} cmdId connId = do
|
||||
updatedAt <- getCurrentTime
|
||||
DB.execute
|
||||
db
|
||||
[sql|
|
||||
UPDATE commands
|
||||
SET connection_id = ?, updated_at = ?
|
||||
WHERE user_id = ? AND command_id = ?
|
||||
|]
|
||||
(connId, updatedAt, userId, cmdId)
|
||||
|
||||
createContact_ :: DB.Connection -> UserId -> Int64 -> Profile -> LocalAlias -> Maybe Int64 -> UTCTime -> Maybe UTCTime -> ExceptT StoreError IO (Text, ContactId, ProfileId)
|
||||
createContact_ db userId connId Profile {displayName, fullName, image, contactLink, preferences} localAlias viaGroup currentTs chatTs =
|
||||
ExceptT . withLocalDisplayName db userId displayName $ \ldn -> do
|
||||
DB.execute
|
||||
db
|
||||
"INSERT INTO contact_profiles (display_name, full_name, image, contact_link, user_id, local_alias, preferences, created_at, updated_at) VALUES (?,?,?,?,?,?,?,?,?)"
|
||||
(displayName, fullName, image, contactLink, userId, localAlias, preferences, currentTs, currentTs)
|
||||
profileId <- insertedRowId db
|
||||
DB.execute
|
||||
db
|
||||
"INSERT INTO contacts (contact_profile_id, local_display_name, user_id, via_group, created_at, updated_at, chat_ts) VALUES (?,?,?,?,?,?,?)"
|
||||
(profileId, ldn, userId, viaGroup, currentTs, currentTs, chatTs)
|
||||
contactId <- insertedRowId db
|
||||
DB.execute db "UPDATE connections SET contact_id = ?, updated_at = ? WHERE connection_id = ?" (contactId, currentTs, connId)
|
||||
pure $ Right (ldn, contactId, profileId)
|
||||
|
||||
deleteUnusedIncognitoProfileById_ :: DB.Connection -> User -> ProfileId -> IO ()
|
||||
deleteUnusedIncognitoProfileById_ db User {userId} profile_id =
|
||||
DB.executeNamed
|
||||
db
|
||||
[sql|
|
||||
DELETE FROM contact_profiles
|
||||
WHERE user_id = :user_id AND contact_profile_id = :profile_id AND incognito = 1
|
||||
AND 1 NOT IN (
|
||||
SELECT 1 FROM connections
|
||||
WHERE user_id = :user_id AND custom_user_profile_id = :profile_id LIMIT 1
|
||||
)
|
||||
AND 1 NOT IN (
|
||||
SELECT 1 FROM group_members
|
||||
WHERE user_id = :user_id AND member_profile_id = :profile_id LIMIT 1
|
||||
)
|
||||
|]
|
||||
[":user_id" := userId, ":profile_id" := profile_id]
|
||||
|
||||
type ContactRow = (ContactId, ProfileId, ContactName, Maybe Int64, ContactName, Text, Maybe ImageData, Maybe ConnReqContact, LocalAlias, Bool, Maybe Bool) :. (Maybe Preferences, Preferences, UTCTime, UTCTime, Maybe UTCTime)
|
||||
|
||||
toContact :: User -> ContactRow :. ConnectionRow -> Contact
|
||||
toContact user (((contactId, profileId, localDisplayName, viaGroup, displayName, fullName, image, contactLink, localAlias, contactUsed, enableNtfs_) :. (preferences, userPreferences, createdAt, updatedAt, chatTs)) :. connRow) =
|
||||
let profile = LocalProfile {profileId, displayName, fullName, image, contactLink, preferences, localAlias}
|
||||
activeConn = toConnection connRow
|
||||
chatSettings = ChatSettings {enableNtfs = fromMaybe True enableNtfs_}
|
||||
mergedPreferences = contactUserPreferences user userPreferences preferences $ connIncognito activeConn
|
||||
in Contact {contactId, localDisplayName, profile, activeConn, viaGroup, contactUsed, chatSettings, userPreferences, mergedPreferences, createdAt, updatedAt, chatTs}
|
||||
|
||||
toContactOrError :: User -> ContactRow :. MaybeConnectionRow -> Either StoreError Contact
|
||||
toContactOrError user (((contactId, profileId, localDisplayName, viaGroup, displayName, fullName, image, contactLink, localAlias, contactUsed, enableNtfs_) :. (preferences, userPreferences, createdAt, updatedAt, chatTs)) :. connRow) =
|
||||
let profile = LocalProfile {profileId, displayName, fullName, image, contactLink, preferences, localAlias}
|
||||
chatSettings = ChatSettings {enableNtfs = fromMaybe True enableNtfs_}
|
||||
in case toMaybeConnection connRow of
|
||||
Just activeConn ->
|
||||
let mergedPreferences = contactUserPreferences user userPreferences preferences $ connIncognito activeConn
|
||||
in Right Contact {contactId, localDisplayName, profile, activeConn, viaGroup, contactUsed, chatSettings, userPreferences, mergedPreferences, createdAt, updatedAt, chatTs}
|
||||
_ -> Left $ SEContactNotReady localDisplayName
|
||||
|
||||
getProfileById :: DB.Connection -> UserId -> Int64 -> ExceptT StoreError IO LocalProfile
|
||||
getProfileById db userId profileId =
|
||||
ExceptT . firstRow toProfile (SEProfileNotFound profileId) $
|
||||
DB.query
|
||||
db
|
||||
[sql|
|
||||
SELECT cp.display_name, cp.full_name, cp.image, cp.contact_link, cp.local_alias, cp.preferences -- , ct.user_preferences
|
||||
FROM contact_profiles cp
|
||||
WHERE cp.user_id = ? AND cp.contact_profile_id = ?
|
||||
|]
|
||||
(userId, profileId)
|
||||
where
|
||||
toProfile :: (ContactName, Text, Maybe ImageData, Maybe ConnReqContact, LocalAlias, Maybe Preferences) -> LocalProfile
|
||||
toProfile (displayName, fullName, image, contactLink, localAlias, preferences) = LocalProfile {profileId, displayName, fullName, image, contactLink, preferences, localAlias}
|
||||
|
||||
type ContactRequestRow = (Int64, ContactName, AgentInvId, Int64, AgentConnId, Int64, ContactName, Text, Maybe ImageData, Maybe ConnReqContact) :. (Maybe XContactId, Maybe Preferences, UTCTime, UTCTime)
|
||||
|
||||
toContactRequest :: ContactRequestRow -> UserContactRequest
|
||||
toContactRequest ((contactRequestId, localDisplayName, agentInvitationId, userContactLinkId, agentContactConnId, profileId, displayName, fullName, image, contactLink) :. (xContactId, preferences, createdAt, updatedAt)) = do
|
||||
let profile = Profile {displayName, fullName, image, contactLink, preferences}
|
||||
in UserContactRequest {contactRequestId, agentInvitationId, userContactLinkId, agentContactConnId, localDisplayName, profileId, profile, xContactId, createdAt, updatedAt}
|
||||
|
||||
userQuery :: Query
|
||||
userQuery =
|
||||
[sql|
|
||||
SELECT u.user_id, u.agent_user_id, u.contact_id, ucp.contact_profile_id, u.active_user, u.local_display_name, ucp.full_name, ucp.image, ucp.contact_link, ucp.preferences, u.show_ntfs, u.view_pwd_hash, u.view_pwd_salt
|
||||
FROM users u
|
||||
JOIN contacts uct ON uct.contact_id = u.contact_id
|
||||
JOIN contact_profiles ucp ON ucp.contact_profile_id = uct.contact_profile_id
|
||||
|]
|
||||
|
||||
toUser :: (UserId, UserId, ContactId, ProfileId, Bool, ContactName, Text, Maybe ImageData, Maybe ConnReqContact, Maybe Preferences, Bool) :. (Maybe B64UrlByteString, Maybe B64UrlByteString) -> User
|
||||
toUser ((userId, auId, userContactId, profileId, activeUser, displayName, fullName, image, contactLink, userPreferences, showNtfs) :. (viewPwdHash_, viewPwdSalt_)) =
|
||||
User {userId, agentUserId = AgentUserId auId, userContactId, localDisplayName = displayName, profile, activeUser, fullPreferences, showNtfs, viewPwdHash}
|
||||
where
|
||||
profile = LocalProfile {profileId, displayName, fullName, image, contactLink, preferences = userPreferences, localAlias = ""}
|
||||
fullPreferences = mergePreferences Nothing userPreferences
|
||||
viewPwdHash = UserPwdHash <$> viewPwdHash_ <*> viewPwdSalt_
|
||||
|
||||
toPendingContactConnection :: (Int64, ConnId, ConnStatus, Maybe ByteString, Maybe Int64, Maybe GroupLinkId, Maybe Int64, Maybe ConnReqInvitation, LocalAlias, UTCTime, UTCTime) -> PendingContactConnection
|
||||
toPendingContactConnection (pccConnId, acId, pccConnStatus, connReqHash, viaUserContactLink, groupLinkId, customUserProfileId, connReqInv, localAlias, createdAt, updatedAt) =
|
||||
PendingContactConnection {pccConnId, pccAgentConnId = AgentConnId acId, pccConnStatus, viaContactUri = isJust connReqHash, viaUserContactLink, groupLinkId, customUserProfileId, connReqInv, localAlias, createdAt, updatedAt}
|
||||
|
||||
-- | Saves unique local display name based on passed displayName, suffixed with _N if required.
|
||||
-- This function should be called inside transaction.
|
||||
withLocalDisplayName :: forall a. DB.Connection -> UserId -> Text -> (Text -> IO (Either StoreError a)) -> IO (Either StoreError a)
|
||||
withLocalDisplayName db userId displayName action = getLdnSuffix >>= (`tryCreateName` 20)
|
||||
where
|
||||
getLdnSuffix :: IO Int
|
||||
getLdnSuffix =
|
||||
maybe 0 ((+ 1) . fromOnly) . listToMaybe
|
||||
<$> DB.queryNamed
|
||||
db
|
||||
[sql|
|
||||
SELECT ldn_suffix FROM display_names
|
||||
WHERE user_id = :user_id AND ldn_base = :display_name
|
||||
ORDER BY ldn_suffix DESC
|
||||
LIMIT 1
|
||||
|]
|
||||
[":user_id" := userId, ":display_name" := displayName]
|
||||
tryCreateName :: Int -> Int -> IO (Either StoreError a)
|
||||
tryCreateName _ 0 = pure $ Left SEDuplicateName
|
||||
tryCreateName ldnSuffix attempts = do
|
||||
currentTs <- getCurrentTime
|
||||
let ldn = displayName <> (if ldnSuffix == 0 then "" else T.pack $ '_' : show ldnSuffix)
|
||||
E.try (insertName ldn currentTs) >>= \case
|
||||
Right () -> action ldn
|
||||
Left e
|
||||
| DB.sqlError e == DB.ErrorConstraint -> tryCreateName (ldnSuffix + 1) (attempts - 1)
|
||||
| otherwise -> E.throwIO e
|
||||
where
|
||||
insertName ldn ts =
|
||||
DB.execute
|
||||
db
|
||||
[sql|
|
||||
INSERT INTO display_names
|
||||
(local_display_name, ldn_base, ldn_suffix, user_id, created_at, updated_at)
|
||||
VALUES (?,?,?,?,?,?)
|
||||
|]
|
||||
(ldn, displayName, ldnSuffix, userId, ts, ts)
|
||||
|
||||
createWithRandomId :: forall a. TVar ChaChaDRG -> (ByteString -> IO a) -> ExceptT StoreError IO a
|
||||
createWithRandomId = createWithRandomBytes 12
|
||||
|
||||
createWithRandomBytes :: forall a. Int -> TVar ChaChaDRG -> (ByteString -> IO a) -> ExceptT StoreError IO a
|
||||
createWithRandomBytes size gVar create = tryCreate 3
|
||||
where
|
||||
tryCreate :: Int -> ExceptT StoreError IO a
|
||||
tryCreate 0 = throwError SEUniqueID
|
||||
tryCreate n = do
|
||||
id' <- liftIO $ encodedRandomBytes gVar size
|
||||
liftIO (E.try $ create id') >>= \case
|
||||
Right x -> pure x
|
||||
Left e
|
||||
| DB.sqlError e == DB.ErrorConstraint -> tryCreate (n - 1)
|
||||
| otherwise -> throwError . SEInternalError $ show e
|
||||
|
||||
encodedRandomBytes :: TVar ChaChaDRG -> Int -> IO ByteString
|
||||
encodedRandomBytes gVar = fmap B64.encode . randomBytes gVar
|
||||
|
||||
randomBytes :: TVar ChaChaDRG -> Int -> IO ByteString
|
||||
randomBytes gVar = atomically . stateTVar gVar . randomBytesGenerate
|
||||
Reference in new issue
Block a user