274 lines
11 KiB
Haskell
274 lines
11 KiB
Haskell
-- eidolon -- A simple gallery in Haskell and Yesod
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-- Copyright (C) 2015 Amedeo Molnár
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--
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-- This program is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU Affero General Public License as published
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-- by the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU Affero General Public License for more details.
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--
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-- 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.Upload where
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import Import as I
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import Data.Time
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import Data.Maybe
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import qualified Data.Text as T
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import Data.List as L
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import qualified System.FilePath as FP
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import Filesystem.Path.CurrentOS
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import Graphics.ImageMagick.MagickWand
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import Text.Blaze.Internal
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getDirectUploadR :: AlbumId -> Handler Html
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getDirectUploadR albumId = do
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tempAlbum <- runDB $ get albumId
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case tempAlbum of -- does the requested album exist
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Just album -> do
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let ownerId = albumOwner album
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msu <- lookupSession "userId"
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case msu of -- is anybody logged in
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Just tempUserId -> do
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let userId = getUserIdFromText tempUserId
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if
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userId == ownerId || userId `elem` albumShares album
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-- is the owner present or a user with whom the album is shared
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then do
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(dUploadWidget, enctype) <- generateFormPost $ dUploadForm userId albumId
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formLayout $ do
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setTitle $ toHtml ("Eidolon :: Upload medium to " `T.append` albumTitle album)
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$(widgetFile "dUpload")
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else do
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setMessage "You must own this album to upload"
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redirect $ AlbumR albumId
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Nothing -> do
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setMessage "You must be logged in to upload"
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redirect LoginR
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Nothing -> do
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setMessage "This album does not exist"
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redirect HomeR
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postDirectUploadR :: AlbumId -> Handler Html
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postDirectUploadR albumId = do
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tempAlbum <- runDB $ get albumId
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case tempAlbum of -- does the album exist
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Just album -> do
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let ownerId = albumOwner album
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msu <- lookupSession "userId"
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case msu of -- is anybody logged in
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Just tempUserId -> do
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let userId = getUserIdFromText tempUserId
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if
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userId == ownerId || userId `elem` albumShares album
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-- is the logged in user the owner or is the album shared with him
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then do
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((result, _), _) <- runFormPost (dUploadForm userId albumId)
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case result of
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FormSuccess temp -> do
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let fils = fileBulkFiles temp
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let indFils = zip [1..] fils
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errNames <- mapM
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(\(index, file) -> do
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let mime = fileContentType file
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if
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mime `elem` acceptedTypes
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then do
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path <- writeOnDrive file ownerId albumId
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(thumbPath, prevPath, iWidth, tWidth, pWidth) <- generateThumb path ownerId albumId
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tempName <- if
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length indFils == 1
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then return $ fileBulkPrefix temp
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else return (fileBulkPrefix temp `T.append` " " `T.append` T.pack (show (index :: Int)) `T.append` " of " `T.append` T.pack (show (length indFils)))
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let medium = Medium tempName ('/' : path) ('/' : thumbPath) mime (fileBulkTime temp) (fileBulkOwner temp) (fileBulkDesc temp) (fileBulkTags temp) iWidth tWidth albumId ('/' : prevPath) pWidth
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mId <- runDB $ I.insert medium
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inALbum <- runDB $ getJust albumId
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let newMediaList = mId : albumContent inALbum
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runDB $ update albumId [AlbumContent =. newMediaList]
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return Nothing
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else
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return $ Just $ fileName file
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) indFils
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let onlyErrNames = removeItem Nothing errNames
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if
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L.null onlyErrNames
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then do
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setMessage "All images succesfully uploaded"
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redirect HomeR
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else do
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let justErrNames = map fromJust onlyErrNames
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let msg = Content $ Text $ "File type not supported of: " `T.append` T.intercalate ", " justErrNames
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setMessage msg
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redirect HomeR
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_ -> do
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setMessage "There was an error uploading the file"
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redirect $ DirectUploadR albumId
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else do -- owner is not present
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setMessage "You must own this album to upload"
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redirect $ AlbumR albumId
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Nothing -> do
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setMessage "You must be logged in to upload"
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redirect $ AlbumR albumId
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Nothing -> do
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setMessage "This Album does not exist"
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redirect $ AlbumR albumId
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generateThumb :: FP.FilePath -> UserId -> AlbumId -> Handler (FP.FilePath, FP.FilePath, Int, Int, Int)
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generateThumb path userId albumId = do
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let newName = FP.takeBaseName path ++ "_thumb.jpg"
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let newPath = "static" FP.</> "data" FP.</> T.unpack (extractKey userId) FP.</> T.unpack (extractKey albumId) FP.</> newName
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let prevName = FP.takeBaseName path ++ "_preview.jpg"
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let prevPath = "static" FP.</> "data" FP.</> T.unpack (extractKey userId) FP.</> T.unpack (extractKey albumId) FP.</> prevName
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(iWidth, tWidth, pWidth) <- liftIO $ withMagickWandGenesis $ do
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(_, w) <- magickWand
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(_, p) <- magickWand
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readImage w (decodeString path)
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readImage p (decodeString path)
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w1 <- getImageWidth w
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h1 <- getImageHeight w
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let h2 = 230
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let w2 = floor (fromIntegral w1 / fromIntegral h1 * fromIntegral h2 :: Double)
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let h3 = h1 `div` 2
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let w3 = w1 `div` 2
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setImageAlphaChannel w deactivateAlphaChannel
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setImageAlphaChannel p deactivateAlphaChannel
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setImageFormat w "jpeg"
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setImageFormat p "jpeg"
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resizeImage w w2 h2 lanczosFilter 1
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resizeImage p w3 h3 lanczosFilter 1
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setImageCompressionQuality w 95
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setImageCompressionQuality p 95
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writeImage w (Just (decodeString newPath))
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writeImage p (Just (decodeString prevPath))
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return (w1, w2, w3)
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return (newPath, prevPath, iWidth, tWidth, pWidth)
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writeOnDrive :: FileInfo -> UserId -> AlbumId -> Handler FP.FilePath
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writeOnDrive fil userId albumId = do
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--filen <- return $ fileName fil
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album <- runDB $ getJust albumId
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let filen = show $ length (albumContent album) + 1
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let ext = FP.takeExtension $ T.unpack $ fileName fil
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let path = "static" FP.</> "data" FP.</> T.unpack (extractKey userId) FP.</> T.unpack (extractKey albumId) FP.</> filen ++ ext
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liftIO $ fileMove fil path
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return path
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dUploadForm :: UserId -> AlbumId -> Form FileBulk
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dUploadForm userId albumId = renderDivs $ FileBulk
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<$> areq textField "Title" Nothing
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<*> areq multiFileField "Select file(s)" Nothing
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<*> lift (liftIO getCurrentTime)
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<*> pure userId
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<*> aopt textareaField "Description" Nothing
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<*> areq tagField "Enter tags" Nothing
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<*> pure albumId
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data FileBulk = FileBulk
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{ fileBulkPrefix :: Text
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, fileBulkFiles :: [FileInfo]
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, fileBulkTime :: UTCTime
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, fileBulkOwner :: UserId
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, fileBulkDesc :: Maybe Textarea
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, fileBulkTags :: [Text]
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, fileBulkAlbum :: AlbumId
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}
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getUploadR :: Handler Html
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getUploadR = do
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msu <- lookupSession "userId"
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case msu of
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Just tempUserId -> do
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let userId = getUserIdFromText tempUserId
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user <- runDB $ getJust userId
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let albums = userAlbums user
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if
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I.null albums
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then do
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(uploadWidget, enctype) <- generateFormPost (bulkUploadForm userId)
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formLayout $ do
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setTitle "Eidolon :: Upload Medium"
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$(widgetFile "bulkUpload")
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else do
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setMessage "Please create an album first"
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redirect NewAlbumR
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Nothing -> do
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setMessage "You need to be logged in"
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redirect LoginR
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bulkUploadForm :: UserId -> Form FileBulk
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bulkUploadForm userId = renderDivs $ (\a b c d e f g -> FileBulk b c d e f g a)
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<$> areq (selectField albums) "Album" Nothing
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<*> areq textField "Title" Nothing
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<*> areq multiFileField "Select file(s)" Nothing
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<*> lift (liftIO getCurrentTime)
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<*> pure userId
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<*> aopt textareaField "Description" Nothing
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<*> areq tagField "Enter tags" Nothing
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where
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albums = do
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allEnts <- runDB $ selectList [] [Desc AlbumTitle]
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let entities = map fromJust $ removeItem Nothing $ map (\ent ->
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if
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userId == albumOwner (entityVal ent) || userId `elem` albumShares (entityVal ent)
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then Just ent
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else Nothing
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) allEnts
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optionsPairs $ I.map (\alb -> (albumTitle $ entityVal alb, entityKey alb)) entities
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postUploadR :: Handler Html
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postUploadR = do
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msu <- lookupSession "userId"
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case msu of
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Just tempUserId -> do
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let userId = getUserIdFromText tempUserId
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((result, _), _) <- runFormPost (bulkUploadForm userId)
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case result of
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FormSuccess temp -> do
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let fils = fileBulkFiles temp
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let indFils = zip [1..] fils
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errNames <- mapM
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(\(index, file) -> do
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let mime = fileContentType file
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if
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mime `elem` acceptedTypes
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then do
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let inAlbumId = fileBulkAlbum temp
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albRef <- runDB $ getJust inAlbumId
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let ownerId = albumOwner albRef
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path <- writeOnDrive file ownerId inAlbumId
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(thumbPath, prevPath, iWidth, tWidth, pWidth) <- generateThumb path ownerId inAlbumId
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tempName <- if
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length indFils == 1
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then return $ fileBulkPrefix temp
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else return (fileBulkPrefix temp `T.append` " " `T.append` T.pack (show (index :: Int)) `T.append` " of " `T.append` T.pack (show (length indFils)))
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let medium = Medium tempName ('/' : path) ('/' : thumbPath) mime (fileBulkTime temp) (fileBulkOwner temp) (fileBulkDesc temp) (fileBulkTags temp) iWidth tWidth inAlbumId ('/' : prevPath) pWidth
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mId <- runDB $ I.insert medium
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inALbum <- runDB $ getJust inAlbumId
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let newMediaList = mId : albumContent inALbum
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runDB $ update inAlbumId [AlbumContent =. newMediaList]
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return Nothing
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else
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return $ Just $ fileName file
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) indFils
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let onlyErrNames = removeItem Nothing errNames
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if
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L.null onlyErrNames
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then do
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setMessage "All images succesfully uploaded"
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redirect HomeR
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else do
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let justErrNames = map fromJust onlyErrNames
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let msg = Content $ Text $ "File type not supported of: " `T.append` T.intercalate ", " justErrNames
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setMessage msg
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redirect HomeR
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_ -> do
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setMessage "There was an error uploading the file"
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redirect UploadR
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Nothing -> do
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setMessage "You need to be logged in"
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redirect LoginR
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