module Handler.Upload where import Import as I import Data.Time import Data.Maybe import qualified Data.Text as T import qualified System.FilePath as FP import Filesystem.Path.CurrentOS import Graphics.ImageMagick.MagickWand data TempMedium = TempMedium { tempMediumTitle :: Text , tempMediumFile :: FileInfo , tempMediumTime :: UTCTime , tempMediumOwner :: UserId , tempMediumDesc :: Textarea , tempMediumTags :: [Text] , tempMediumAlbum :: AlbumId } getUploadR :: Handler Html getUploadR = do msu <- lookupSession "userId" case msu of Just tempUserId -> do userId <- return $ getUserIdFromText tempUserId (uploadWidget, enctype) <- generateFormPost (uploadForm userId) defaultLayout $ do setTitle "Eidolon :: Upload Medium" $(widgetFile "upload") Nothing -> do setMessage "You need to be logged in" redirect $ LoginR postUploadR :: Handler Html postUploadR = do msu <- lookupSession "userId" case msu of Just tempUserId -> do userId <- lift $ pure $ getUserIdFromText tempUserId ((result, _), _) <- runFormPost (uploadForm userId) case result of FormSuccess temp -> do fil <- return $ tempMediumFile temp mime <- return $ (fileContentType fil) case mime `elem` acceptedTypes of True -> do albRef <- runDB $ getJust (tempMediumAlbum temp) ownerId <- return $ albumOwner albRef path <- writeOnDrive fil ownerId (tempMediumAlbum temp) thumbPath <- generateThumb path ownerId (tempMediumAlbum temp) inAlbumId <- return $ tempMediumAlbum temp medium <- return $ Medium (tempMediumTitle temp) ('/' : path) ('/' : thumbPath) mime (tempMediumTime temp) (tempMediumOwner temp) (tempMediumDesc temp) (tempMediumTags temp) inAlbumId mId <- runDB $ I.insert medium inAlbum <- runDB $ getJust inAlbumId newMediaList <- return $ mId : (albumContent inAlbum) runDB $ update inAlbumId [AlbumContent =. newMediaList] setMessage "Image succesfully uploaded" redirect $ HomeR _ -> do setMessage "This filetype is not supported" redirect $ UploadR _ -> do setMessage "There was an error uploading the file" redirect $ UploadR Nothing -> do setMessage "You need to be logged in" redirect $ LoginR getDirectUploadR :: AlbumId -> Handler Html getDirectUploadR albumId = do tempAlbum <- runDB $ get albumId case tempAlbum of -- does the requested album exist Just album -> do ownerId <- return $ albumOwner album msu <- lookupSession "userId" case msu of -- is anybody logged in Just tempUserId -> do userId <- return $ getUserIdFromText tempUserId presence <- return $ (userId == ownerId) || (userId `elem` (albumShares album)) case presence of -- is the owner present or a user with whom the album is shared True -> do (dUploadWidget, enctype) <- generateFormPost $ dUploadForm userId albumId defaultLayout $ do setTitle $ toHtml ("Eidolon :: Upload medium to " `T.append` (albumTitle album)) $(widgetFile "dUpload") False -> do setMessage "You must own this album to upload" redirect $ AlbumR albumId Nothing -> do setMessage "You must be logged in to upload" redirect $ LoginR Nothing -> do setMessage "This album does not exist" redirect $ HomeR postDirectUploadR :: AlbumId -> Handler Html postDirectUploadR albumId = do tempAlbum <- runDB $ get albumId case tempAlbum of -- does the album exist Just album -> do ownerId <- return $ albumOwner album msu <- lookupSession "userId" case msu of -- is anybody logged in Just tempUserId -> do userId <- return $ getUserIdFromText tempUserId presence <- return $ (userId == ownerId) || (userId `elem` (albumShares album)) case presence of -- is the logged in user the owner or is the album shared with him True -> do ((result, _), _) <- runFormPost (dUploadForm userId albumId) case result of FormSuccess temp -> do fil <- return $ tempMediumFile temp mime <- return $ fileContentType fil case mime `elem` acceptedTypes of True -> do albRef <- runDB $ getJust (tempMediumAlbum temp) refOwnerId <- return $ albumOwner albRef path <- writeOnDrive fil refOwnerId albumId thumbPath <- generateThumb path ownerId albumId medium <- return $ Medium (tempMediumTitle temp) ('/' : path) ('/' : thumbPath) mime (tempMediumTime temp) (tempMediumOwner temp) (tempMediumDesc temp) (tempMediumTags temp) albumId mId <- runDB $ insert medium inAlbum <- runDB $ getJust albumId newMediaList <- return $ mId : (albumContent inAlbum) runDB $ update albumId [AlbumContent =. newMediaList] setMessage "Image successfully uploaded" redirect $ AlbumR albumId _ -> do setMessage "This filetype is not supported" redirect $ DirectUploadR albumId _ -> do setMessage "There was an error uploading the file" redirect $ DirectUploadR albumId False -> do -- owner is not present setMessage "You must own this album to upload" redirect $ AlbumR albumId Nothing -> do setMessage "You must be logged in to upload" redirect $ AlbumR albumId Nothing -> do setMessage "This Album does not exist" redirect $ AlbumR albumId generateThumb :: FP.FilePath -> UserId -> AlbumId -> Handler FP.FilePath generateThumb path userId albumId = do newName <- return $ (FP.takeBaseName path) ++ "_thumb" ++ (FP.takeExtension path) newPath <- return $ "static" FP. "data" FP. (T.unpack $ extractKey userId) FP. (T.unpack $ extractKey albumId) FP. newName liftIO $ withMagickWandGenesis $ do (_ , w) <- magickWand readImage w (decodeString path) w1 <- getImageWidth w h1 <- getImageHeight w h2 <- return 220 w2 <- return $ floor (((fromIntegral w1) / (fromIntegral h1)) * (fromIntegral h2) :: Double) resizeImage w w2 h2 lanczosFilter 1 setImageCompressionQuality w 95 writeImage w (Just (decodeString newPath)) return newPath writeOnDrive :: FileInfo -> UserId -> AlbumId -> Handler FP.FilePath writeOnDrive fil userId albumId = do --filen <- return $ fileName fil album <- runDB $ getJust albumId filen <- return $ show $ (length $ albumContent album) + 1 ext <- return $ FP.takeExtension $ T.unpack $ fileName fil path <- return $ "static" FP. "data" FP. (T.unpack $ extractKey userId) FP. (T.unpack $ extractKey albumId) FP. filen ++ ext liftIO $ fileMove fil path return path uploadForm :: UserId -> Form TempMedium uploadForm userId = renderDivs $ (\a b c d e f g -> TempMedium b c d e f g a) <$> areq (selectField albums) "Album" Nothing <*> areq textField "Title" Nothing <*> areq fileField "Select file" Nothing <*> lift (liftIO getCurrentTime) <*> pure userId <*> areq textareaField "Description" Nothing <*> areq tagField "Enter tags" Nothing where -- albums :: GHandler App App (OptionList AlbumId) albums = do allEnts <- runDB $ selectList [] [Desc AlbumTitle] entities <- return $ map fromJust $ removeItem Nothing $ map (\ent -> do case (userId == (albumOwner $ entityVal ent)) || (userId `elem` (albumShares $ entityVal ent)) of True -> Just ent False -> Nothing ) allEnts -- entities <- runDB $ selectList [AlbumOwner ==. userId] [Desc AlbumTitle] optionsPairs $ I.map (\alb -> (albumTitle $ entityVal alb, entityKey alb)) entities dUploadForm :: UserId -> AlbumId -> Form TempMedium dUploadForm userId albumId = renderDivs $ TempMedium <$> areq textField "Title" Nothing <*> areq fileField "Select file" Nothing <*> lift (liftIO getCurrentTime) <*> pure userId <*> areq textareaField "Description" Nothing <*> areq tagField "Enter tags" Nothing <*> pure albumId