eidolon/Handler/ProfileDelete.hs

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-- eidolon -- A simple gallery in Haskell and Yesod
-- Copyright (C) 2015 Amedeo Molnár
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as published
-- by the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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module Handler.ProfileDelete where
import Import
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import Handler.Commons
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import Control.Monad (when)
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import qualified Data.Text as T
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import qualified Data.List as L
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import System.Directory
import System.FilePath
getProfileDeleteR :: UserId -> Handler Html
getProfileDeleteR userId = do
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checkRes <- profileCheck userId
case checkRes of
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Right user ->
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formLayout $ do
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setTitle "Eidolon :: Delete user profile"
$(widgetFile "profileDelete")
Left (errorMsg, route) -> do
setMessage errorMsg
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redirect route
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postProfileDeleteR :: UserId -> Handler Html
postProfileDeleteR userId = do
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checkRes <- profileCheck userId
case checkRes of
Right user -> do
confirm <- lookupPostParam "confirm"
case confirm of
Just "confirm" -> do
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let albumList = userAlbums user
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_ <- mapM (\albumId -> do
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album <- runDB $ getJust albumId
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when (albumOwner album == userId) $ do
let mediaList = albumContent album
_ <- mapM (\med -> do
commEnts <- runDB $ selectList [CommentOrigin ==. med] []
_ <- mapM (\ent -> do
children <- runDB $ selectList [CommentParent ==. (Just $ entityKey ent)] []
_ <- mapM (\child -> do
-- delete comment children
runDB $ delete $ entityKey child
) children
-- delete comment
runDB $ delete $ entityKey ent) commEnts
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medium <- runDB $ getJust med
liftIO $ removeFile (normalise $ L.tail $ mediumPath medium)
liftIO $ removeFile (normalise $ L.tail $ mediumThumb medium)
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liftIO $ removeFile (normalise $ L.tail $ mediumPreview medium)
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runDB $ delete med
) mediaList
runDB $ delete albumId
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) albumList
runDB $ delete userId
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liftIO $ removeDirectoryRecursive $ "static" </> "data" </> T.unpack (extractKey userId)
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deleteSession "userId"
setMessage "User deleted successfully"
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redirect HomeR
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_ -> do
setMessage "You must confirm the deletion"
redirect $ ProfileSettingsR userId
Left (errorMsg, route) -> do
setMessage errorMsg
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redirect route