packages feed

lucienne (empty) → 0.0.1

raw patch · 43 files changed

+2469/−0 lines, 43 filesdep +HTTPdep +SHAdep +basesetup-changed

Dependencies added: HTTP, SHA, base, base64-bytestring, blaze-html, bson, bytestring, compact-string-fix, feed, happstack, happstack-server, mongoDB, mtl, network, text, time

Files

+ LICENSE view
@@ -0,0 +1,674 @@+                    GNU GENERAL PUBLIC LICENSE+                       Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++                            Preamble++  The GNU General Public License is a free, copyleft license for+software and other kinds of works.++  The licenses for most software and other practical works are designed+to take away your freedom to share and change the works.  By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users.  We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors.  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Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++  You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++  The GNU General Public License does not permit incorporating your program+into proprietary programs.  If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library.  If this is what you want to do, use the GNU Lesser General+Public License instead of this License.  But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+ Lucienne/Args.hs view
@@ -0,0 +1,44 @@+module Lucienne.Args+  (Args (..), getArgs, dbConnectionString)+where++import           Control.Monad (when)+import           System.Console.GetOpt+import qualified System.Environment as Env+import           Data.List (intercalate)++data Args = Args { applicationPort :: Int+                 , databaseHost    :: String+                 , databasePort    :: Int+                 }++defaultArgs :: Args+defaultArgs = Args 8000 "127.0.0.1" 27017++options :: [OptDescr (Args -> Args)]+options =+ [ Option ['p'] ["port"]+    (ReqArg (\a args -> args { applicationPort = read a }) "PORT")+    "Port of incoming requests"+ , Option ['d'] ["databaseHost"]+    (ReqArg (\a args -> args { databaseHost = a }) "HOST")+    "Database host"+ , Option ['e'] ["databasePort"]+    (ReqArg (\a args -> args { databasePort = read a }) "PORT")+    "Database port"+ , Option ['h'] ["help"]+    (NoArg (\_ -> error $ usageInfo "" options))+    "Print this help"+ ]++getArgs :: IO Args+getArgs = do+  cmdArgs <- Env.getArgs+  case getOpt RequireOrder options cmdArgs of+    (o,n,[]) ->+      do when (not $ null n) $ putStrLn $ "Omitting arguments " ++ (intercalate "," n)+         return $ foldr ($) defaultArgs o +    (_,_,errors) -> error $ concat errors ++ usageInfo "" options++dbConnectionString :: Args -> String+dbConnectionString args = databaseHost args ++ ":" ++ (show $ databasePort args)
+ Lucienne/ConnectionReader.hs view
@@ -0,0 +1,27 @@+module Lucienne.ConnectionReader+  (Connection, ConnectionReader, accessDb, runConnectionReader)+where++import           Control.Monad.Reader (ReaderT,ask,liftIO,runReaderT)+import           Data.Char (toLower)+import qualified Data.CompactString.UTF8 as CS+import           Database.MongoDB (Pipe,Action,Database)+import qualified Database.MongoDB as M+import           Lucienne.Constant (programName)++type Connection = Pipe+type ConnectionReader = ReaderT Connection IO++database :: Database+database = CS.pack $ map toLower programName++accessDb :: Action IO a -> ConnectionReader a+accessDb action = do+  connection <- ask+  result <- liftIO $ M.access connection M.master database action+  case result of+    Right r -> return r+    Left l -> error $ "while accessing database: " ++ show l++runConnectionReader :: Connection -> ConnectionReader a -> IO a+runConnectionReader connection reader = runReaderT reader connection
+ Lucienne/Constant.hs view
@@ -0,0 +1,7 @@+module Lucienne.Constant +  (programName)+where++programName :: String+programName = "Lucienne"+
+ Lucienne/Controller.hs view
@@ -0,0 +1,8 @@+module Lucienne.Controller+  (Controller)+where++import Happstack.Server (ServerPartT)+import Lucienne.ConnectionReader (ConnectionReader)++type Controller a = ServerPartT ConnectionReader a
+ Lucienne/Controller/AddNewFeed.hs view
@@ -0,0 +1,33 @@+module Lucienne.Controller.AddNewFeed+  (addNewFeed,doAddNewFeed)+where++import           Control.Monad.Trans (liftIO)+import           Lucienne.Controller.Imports+import qualified Lucienne.View.AddNewFeed as View+import qualified Lucienne.Database as DB+import           Lucienne.Fetch (fetchFeedByUrl)+import qualified Lucienne.Model.Feed as F+import qualified Lucienne.Model.FeedItem as FI+import qualified Lucienne.Url as Url++addNewFeed :: User -> Controller Response+addNewFeed _ = do+  msg <- getMessages+  ok $ toResponse $ View.addNewFeed msg++doAddNewFeed :: User -> Controller Response+doAddNewFeed user = do +  decodeBody+  url <- look "url"+  alreadySubscribed <- lift $ DB.feedExists user url+  if alreadySubscribed +   then seeOther $ withMessage AlreadySubscribed Url.addNewFeed+   else do+     result <- liftIO $ fetchFeedByUrl url+     case result of+       Left msg           -> badRequest $ toResponse $ msg+       Right (feed,items) -> do +         feedId <- lift $ DB.addFeed $ F.setOwner user feed+         _ <- lift $ DB.addFeedItems $ map (FI.setOwner user . FI.setFeedId feedId) items+         seeFeed feedId
+ Lucienne/Controller/AddNewUser.hs view
@@ -0,0 +1,40 @@+module Lucienne.Controller.AddNewUser+  (addNewUser,doAddNewUser)+where++import           Control.Applicative ((<$>))+import           Lucienne.Controller.Imports+import qualified Lucienne.View.AddNewUser as View+import qualified Lucienne.Database as DB+import qualified Lucienne.Model.User as U+import qualified Lucienne.Url as Url++addNewUser :: User -> Controller Response+addNewUser user = +  if U.mayAddUsers user then +    getMessages >>= ok . toResponse . View.addNewUser+  else+    mzero++doAddNewUser :: User -> Controller Response+doAddNewUser user = +  if U.mayAddUsers user then+    do+      decodeBody+      Just username      <- lookParameter "username"+      Just password      <- lookParameter "password"+      Just checkPassword <- lookParameter "check_password"+      mayAddUsers        <- maybe False (const True) <$> lookParameter "may_add_users"+      +      if password == checkPassword && not (null password)+        then do +          alreadyInUse <- lift $ DB.usernameExists username+          if alreadyInUse+            then seeOther $ withMessage UsernameExists Url.addNewUser+            else do _ <- lift $ DB.addUser $ U.newUser username password mayAddUsers+                    seeHomeWith UserCreated+        else seeOther $ concat [ withMessage CheckPassword Url.addNewUser+                               , "&name=",username]+  else+    mzero+
+ Lucienne/Controller/BasicAuth.hs view
@@ -0,0 +1,37 @@+module Lucienne.Controller.BasicAuth+  (basicAuth)+where++import qualified Data.ByteString.Char8 as B+import qualified Data.ByteString.Base64 as Base64+import           Happstack.Server.Monads (escape,getHeaderM,setHeaderM)+import           Happstack.Server.Response (unauthorized)+import           Lucienne.Controller.Imports+import qualified Lucienne.Database as DB+import           Lucienne.Constant (programName)++basicAuth :: (User -> Controller Response) -> Controller Response+basicAuth protected = do+  header <- getHeaderM "authorization"+  case header of+    Nothing -> notAuthorized+    Just h  -> +      case parseHeader h of+        Right (name, ':':password) -> do+          user <- lift $ DB.userByNameAndPassword name password+          case user of+            Nothing -> notAuthorized+            Just u  -> protected u+        _ -> notAuthorized++    where +      parseHeader header = +        fmap (break (':'==) . B.unpack) $ Base64.decode $ B.drop 6 $ header++      headerValue = "Basic realm=\"" ++ programName ++ "\""++      notAuthorized = +        escape $ do+                setHeaderM "WWW-Authenticate" headerValue+                unauthorized $ toResponse ("Not authorized" :: String)+
+ Lucienne/Controller/ChangePassword.hs view
@@ -0,0 +1,25 @@+module Lucienne.Controller.ChangePassword +       (changePassword, doChangePassword)+where+  +import qualified Lucienne.Database as DB+import           Lucienne.Controller.Imports+import qualified Lucienne.View.ChangePassword as View+import qualified Lucienne.Url as Url++changePassword :: User -> Controller Response+changePassword _ = do+  msg  <- getMessages+  ok $ toResponse $ View.changePassword msg++doChangePassword :: User -> Controller Response+doChangePassword user = do+  decodeBody+  Just password      <- lookParameter "password"+  Just checkPassword <- lookParameter "check_password"+  +  if password == checkPassword && not (null password)+    then do +      lift $ DB.changePassword user password+      seeHome+    else seeOther $ withMessage CheckPassword Url.changePassword
+ Lucienne/Controller/DeleteFeed.hs view
@@ -0,0 +1,26 @@+module Lucienne.Controller.DeleteFeed +       (deleteFeed, doDeleteFeed)+where+  +import           Lucienne.Controller.Imports+import qualified Lucienne.View.DeleteFeed as View+import qualified Lucienne.Database as DB+import qualified Lucienne.Model.Feed as F++deleteFeed :: String -> User -> Controller Response+deleteFeed feedId user = do+  mFeed <- lift $ DB.feedById user feedId+  case mFeed of+    Nothing   -> mzero+    Just feed -> ok $ toResponse $ View.deleteFeed feed+    +doDeleteFeed :: String -> User -> Controller Response+doDeleteFeed feedId user = do+  mFeed <- lift $ DB.feedById user feedId+  case mFeed of+    Nothing   -> mzero+    Just feed -> do +      lift $ do DB.deleteFeedItemsByFeedId $ F.id feed+                DB.deleteFeedById user $ F.id feed+      seeHome+
+ Lucienne/Controller/DeleteUser.hs view
@@ -0,0 +1,16 @@+module Lucienne.Controller.DeleteUser+       (deleteUser, doDeleteUser)+where+  +import           Lucienne.Controller.Imports+import qualified Lucienne.View.DeleteUser as View+import qualified Lucienne.Database as DB++deleteUser :: User -> Controller Response+deleteUser = ok . toResponse . View.deleteUser++doDeleteUser :: User -> Controller Response+doDeleteUser user = do+  lift $ DB.deleteUser user+  seeHome+
+ Lucienne/Controller/Feed.hs view
@@ -0,0 +1,27 @@+module Lucienne.Controller.Feed+  (Message (..), feed, home)+where+  +import           Data.List (find)+import           Lucienne.Controller.Imports+import qualified Lucienne.Database as DB+import qualified Lucienne.View.Feed as View+import qualified Lucienne.Model.Feed as F++feed :: String -> User -> Controller Response+feed feedId user = do+  feeds <- lift $ DB.feedsByUser user+  items <- lift $ DB.feedItemsByFeedId user feedId+  +  case (find (\f -> F.id f == readObjectId feedId) feeds) of+    Nothing   -> mzero+    Just feed -> ok $ toResponse $ View.feed user feed items feeds+    +home :: User -> Controller Response+home user = do+  msg   <- getMessages  +  feeds <- lift $ DB.feedsByUser user+  items <- lift $ DB.feedItems user+    +  ok $ toResponse $ View.home user msg items feeds+
+ Lucienne/Controller/FeedItem.hs view
@@ -0,0 +1,75 @@+module Lucienne.Controller.FeedItem+       ( feedItem, doDeleteFeedItem, doReadFeedItem, doChangeFeedItemState)+where+  +import           Control.Applicative ((<$>))+import           Control.Monad (msum)+import           Data.Maybe (isJust,fromJust,catMaybes)+import qualified Lucienne.Database as DB+import           Lucienne.Controller.Imports+import qualified Lucienne.View.FeedItem as View+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI+import           Lucienne.Model.FeedItemState (FeedItemState (..))++feedItem :: String -> User -> Controller Response+feedItem feedItemId user = do+  mFeedItem <- lift $ DB.feedItemById user feedItemId+  case mFeedItem of+    Nothing       -> mzero+    Just feedItem -> +      let redirect = (null $ FI.content feedItem) && (FI.state feedItem == New)+      in do        +        setStateOfItem feedItem Read+        +        if redirect+          then seeOther $ FI.url feedItem+          else ok $ toResponse $ View.feedItem feedItem+    +doDeleteFeedItem :: String -> User -> Controller Response+doDeleteFeedItem feedItemId user = +  setStateAndSeeFeed feedItemId user Deleted++doReadFeedItem :: String -> User -> Controller Response+doReadFeedItem feedItemId user = +  setStateAndSeeFeed feedItemId user Read+  +doChangeFeedItemState :: User -> Controller Response+doChangeFeedItemState user = do+  decodeBody+  action <- msum <$> mapM lookAction ["markAsRead","delete"]+  ids    <- readParameter "numItems" >>= lookFeedItemIds . fromJust+  +  case action of+    Just "markAsRead" -> mapM_ (\id -> setState id user Read) ids+    Just "delete"     -> mapM_ (\id -> setState id user Deleted) ids+  +  mFeedId <- fmap readObjectId <$> lookParameter "feedId"+  case mFeedId of+    Nothing     -> seeHome+    Just feedId -> seeFeed feedId+    +  where+    lookAction a = do+      isAction <- isJust <$> lookParameter a+      return $ if isAction then Just a else Nothing+      +    lookFeedItemIds numItems =+      catMaybes <$> mapM (\i -> lookParameter $ "feedItem" ++ show i) [0..numItems - 1]+  +setState :: String -> User -> FeedItemState -> Controller ()+setState feedItemId user state = do+  Just feedItem <- lift $ DB.feedItemById user feedItemId+  setStateOfItem feedItem state    +  +setStateOfItem :: FeedItem -> FeedItemState -> Controller ()+setStateOfItem feedItem state =+  case FI.state feedItem of+    Deleted -> return ()+    _       -> lift $ DB.upsertFeedItem $ feedItem { FI.state = state }+    +setStateAndSeeFeed :: String -> User -> FeedItemState -> Controller Response+setStateAndSeeFeed feedItemId user state = do+  Just feedItem <- lift $ DB.feedItemById user feedItemId+  setStateOfItem feedItem state    +  seeFeed $ FI.feedId feedItem
+ Lucienne/Controller/Imports.hs view
@@ -0,0 +1,45 @@+{-| This is a utility module to avoid writing cumbersome import +  statements of common modules in every controller. +-}+module Lucienne.Controller.Imports+  ( stringSUri, withData+    -- Control.Monad+  , mzero+    -- Control.Monad.Trans+  , lift+    -- Happstack.Server+  , Response, toResponse, ok, badRequest+    -- Happstack.Server.RqData+  , RqData, look+    -- Lucienne.Controller+  , Controller+    -- Lucienne.Controller.Util+  , decodeBody, seeHome, seeHomeWith, seeOther, seeFeed, lookParameter, readParameter+    -- Lucienne.Controller.Message+  , Message (..), getMessages, withMessage                                                                        +    -- Lucienne.Model.User+  , User+    -- Lucienne.Model.Util+  , readObjectId, showObjectId+  )+where++import Control.Monad (mzero)+import Control.Monad.Trans (lift)+import Happstack.Server (Response,toResponse,ok,badRequest)+import Happstack.Server.RqData (RqData,look)+import Happstack.Server.SURI (SURI,toSURI)+import Lucienne.Controller (Controller)+import Lucienne.Controller.Util +  (decodeBody,seeHome,seeHomeWith,seeOther,seeFeed,lookParameter,readParameter)+import Lucienne.Controller.Message (Message(..), getMessages, withMessage)+import Lucienne.Model.User (User)+import Lucienne.Model.Util (readObjectId,showObjectId)++import qualified Happstack.Server.RqData as Rq++stringSUri :: String -> SURI+stringSUri = toSURI++withData :: RqData a -> (Either [String] a -> Controller b) -> Controller b+withData rqData f = Rq.getDataFn rqData >>= f
+ Lucienne/Controller/Message.hs view
@@ -0,0 +1,34 @@+module Lucienne.Controller.Message+       (Message (..), getMessages, withMessage, readParameter)+where+  +import qualified Happstack.Server as S+import           Control.Applicative (optional,(<$>))+import           Lucienne.Controller (Controller)+import           Lucienne.Url (Url)+  +data Message = UsernameExists+             | CheckPassword+             | UserCreated+             | AlreadySubscribed+               deriving (Read,Show)+                        +toMessage :: Message -> String+toMessage msg = case msg of+  UsernameExists    -> "Username already in use"+  CheckPassword     -> "Check password"+  UserCreated       -> "User successfully created"+  AlreadySubscribed -> "You've already subscribed this feed"+                        +getMessages :: Controller [String]+getMessages = do+  mMsg <- readParameter "msg"  +  return $ case mMsg of +    Nothing  -> [ ]+    Just msg -> [toMessage msg]+  +withMessage :: Message -> Url -> Url+withMessage msg url = concat [url, "?msg=", show msg]++readParameter :: Read a => String -> Controller (Maybe a)+readParameter param = fmap read <$> (optional $ S.look param)
+ Lucienne/Controller/NotFound.hs view
@@ -0,0 +1,9 @@+module Lucienne.Controller.NotFound+       (notFound)+where+  +import qualified  Happstack.Server as S+import Lucienne.Controller.Imports++notFound :: String -> Controller Response+notFound url = S.notFound $ toResponse $ "Not found: " ++ url
+ Lucienne/Controller/Util.hs view
@@ -0,0 +1,33 @@+module Lucienne.Controller.Util+       ( decodeBody, seeOther, seeFeed, seeHome, seeHomeWith+       , lookParameter, readParameter)+where+  +import           Control.Applicative (optional)+import qualified Happstack.Server as S+import           Lucienne.Controller (Controller)+import           Lucienne.Model.Util (showObjectId)+import           Data.Bson (ObjectId)+import qualified Lucienne.Url as Url+import           Lucienne.Controller.Message(Message, withMessage, readParameter)++decodeBody :: Controller ()+decodeBody = S.decodeBody decodePolicy ++seeOther :: String -> Controller S.Response+seeOther url = S.seeOther url $ S.toResponse ()++seeFeed :: ObjectId -> Controller S.Response+seeFeed feedId = seeOther $ Url.feed ++ "/" ++ showObjectId feedId++seeHome :: Controller S.Response+seeHome = seeOther Url.home++seeHomeWith :: Message -> Controller S.Response+seeHomeWith message = seeOther $ withMessage message Url.home+  +decodePolicy :: S.BodyPolicy+decodePolicy = S.defaultBodyPolicy "/tmp/" 0 10240 10240++lookParameter :: String -> Controller (Maybe String)+lookParameter = optional . S.look
+ Lucienne/Database.hs view
@@ -0,0 +1,172 @@+module Lucienne.Database+  ( addUser, deleteUser, users, usernameExists, userByNameAndPassword, changePassword+  , addFeed, feedExists, feedsByUser, feedById, deleteFeedById+  , addFeedItems, upsertFeedItem, feedItems, feedItemsByFeedId, feedItemById, feedItemExists+  , deleteMarkedFeedItems, deleteFeedItemsByFeedId+  , countUsers)+where++import           Data.Maybe (isJust)+import           Control.Applicative ((<$>))+import           Data.CompactString.UTF8 (CompactString)+import           Data.Bson ((=:),ObjectId)+import           Database.MongoDB (Document,Value)+import qualified Database.MongoDB as DB+import           Lucienne.ConnectionReader (ConnectionReader,accessDb)+import           Lucienne.DatabaseAble (DatabaseAble(..))+import           Lucienne.Model.Util (showValue,objectId,readObjectId)+import           Lucienne.Model.User (User,name)+import qualified Lucienne.Model.User as U+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI++type Collection = CompactString++userCollection     = "users"+feedCollection     = "feeds"+feedItemCollection = "feedItems"++addUser :: User -> ConnectionReader String+addUser user = +  showValue <$> addDatabaseAble userCollection user++deleteUser :: User -> ConnectionReader ()+deleteUser user =+  let deleteFeedItemsQuery = FI.feedItemsQuery (name user)+      deleteFeedsQuery     = F.feedsQuery (name user)+      deleteUserQuery      = U.userByNameQuery (name user)+  in do+    deleteDocuments feedItemCollection deleteFeedItemsQuery+    deleteDocuments feedCollection     deleteFeedsQuery+    deleteDocuments userCollection     deleteUserQuery++addFeed :: Feed -> ConnectionReader ObjectId+addFeed feed = +  objectId <$> addDatabaseAble feedCollection feed++addFeedItems :: [FeedItem] -> ConnectionReader [ObjectId]+addFeedItems items =+  map objectId <$> addDatabaseAbles feedItemCollection items+  +upsertFeedItem :: FeedItem -> ConnectionReader ()+upsertFeedItem = upsertDatabaseAble feedItemCollection++users :: ConnectionReader [User]+users = do+  users <- readDocuments userCollection [] [] []+  return $ map fromDocument users++usernameExists :: String -> ConnectionReader Bool+usernameExists = querySucceeds userCollection . U.userByNameQuery++userByNameAndPassword :: String -> String -> ConnectionReader (Maybe User)+userByNameAndPassword name password = do+  user <- readDocument userCollection (U.userByNameAndPasswordQuery name password) []+  return $ fmap fromDocument user++changePassword :: User -> String -> ConnectionReader ()+changePassword user = upsertDatabaseAble userCollection . U.changePassword user  ++feedExists :: User -> String -> ConnectionReader Bool+feedExists user url = +  querySucceeds feedCollection $ F.feedByUrlQuery (name user) url++feedsByUser :: User -> ConnectionReader [Feed]+feedsByUser user = do+  docs <- readDocuments feedCollection (F.feedsQuery $ name user) [] []+  return $ map fromDocument docs++feedById :: User -> String -> ConnectionReader (Maybe Feed)+feedById user feedId = +  let queryDocument = F.feedByIdQuery (name user) (readObjectId feedId)+  in do+    feed <- readDocument feedCollection queryDocument []+    return $ fmap fromDocument feed+    +deleteFeedById :: User -> ObjectId -> ConnectionReader ()+deleteFeedById user feedId =+  let queryDocument = F.feedByIdQuery (name user) feedId+  in+   deleteDocuments feedCollection queryDocument++feedItemsByFeedId :: User -> String -> ConnectionReader [FeedItem]+feedItemsByFeedId user feedId = +  let queryDocument = FI.feedItemsByFeedIdQuery (name user) feedId+  in do+    docs <- readDocuments feedItemCollection queryDocument FI.feedItemHeaderProjector FI.feedItemsSort+    return $ map fromDocument docs++feedItems :: User -> ConnectionReader [FeedItem]+feedItems user = +  let queryDocument = FI.readableFeedItemsQuery $ name user+  in do+    docs <- readDocuments feedItemCollection queryDocument FI.feedItemHeaderProjector FI.feedItemsSort+    return $ map fromDocument docs++feedItemById :: User -> String -> ConnectionReader (Maybe FeedItem)+feedItemById user feedItemId = +  let queryDocument = FI.feedItemByIdQuery (name user) feedItemId+  in do+    item <- readDocument feedItemCollection queryDocument []+    return $ fmap fromDocument item++feedItemExists :: ObjectId -> String -> String -> ConnectionReader Bool+feedItemExists feedId title url = +  let queryDocument = FI.feedItemExistsQuery feedId title url+  in +    querySucceeds feedItemCollection queryDocument++deleteMarkedFeedItems :: ObjectId -> [String] -> [String] -> ConnectionReader ()+deleteMarkedFeedItems feedId titlesToRemain urlsToRemain = +  let queryDocument = FI.deleteMarkedFeedItemsQuery feedId titlesToRemain urlsToRemain +  in+   deleteDocuments feedItemCollection queryDocument++deleteFeedItemsByFeedId :: ObjectId -> ConnectionReader ()+deleteFeedItemsByFeedId feedId =+  let queryDocument = FI.deleteFeedItemsByFeedIdQuery feedId+  in+   deleteDocuments feedItemCollection queryDocument+   +countUsers :: ConnectionReader Int+countUsers = countDocuments userCollection++readDocument :: Collection -> Document -> Document -> ConnectionReader (Maybe Document)+readDocument collection queryDocument projector =+  let query = (DB.select queryDocument collection) {DB.project = projector}+  in+    accessDb $ DB.findOne query++readDocuments :: Collection -> Document -> Document -> Document -> ConnectionReader [Document]+readDocuments collection queryDocument projector sort =+  let query = (DB.select queryDocument collection) {DB.project = projector, DB.sort = sort}+  in+    accessDb $ DB.find query >>= DB.rest++countDocuments :: Collection -> ConnectionReader Int+countDocuments = accessDb . DB.count . DB.select []++addDatabaseAble :: (DatabaseAble a) => Collection -> a -> ConnectionReader Value+addDatabaseAble collection = +  accessDb . DB.insert collection . toDocument+  +addDatabaseAbles :: (DatabaseAble a) => Collection -> [a] -> ConnectionReader [Value]+addDatabaseAbles collection = +  accessDb . DB.insertMany collection . map toDocument++upsertDatabaseAble :: (DatabaseAble a) => Collection -> a -> ConnectionReader ()+upsertDatabaseAble collection = +  accessDb . DB.save collection . toDocument+  +deleteDocuments :: Collection -> Document -> ConnectionReader ()+deleteDocuments collection queryDocument = +  accessDb $ DB.delete $ DB.select queryDocument collection++-- |Returns @True@ when at least on result was found+querySucceeds :: Collection -> Document -> ConnectionReader Bool+querySucceeds collection queryDocument =+  let query = (DB.select queryDocument collection) {DB.project = [ "_id" =: (1::Int) ]}+  in+    isJust <$> (accessDb $ DB.findOne query)
+ Lucienne/DatabaseAble.hs view
@@ -0,0 +1,9 @@+module Lucienne.DatabaseAble +  (DatabaseAble (..))+where++import Data.Bson (Document)++class DatabaseAble a where+  toDocument   :: a -> Document+  fromDocument :: Document -> a
+ Lucienne/Fetch.hs view
@@ -0,0 +1,85 @@+module Lucienne.Fetch+  (fetchFeedByUrl,fetchFeed)+where++import           Data.Maybe (fromMaybe)+import           Data.List (find)+import qualified Data.ByteString.Char8 as BS+import qualified Data.Text as T+import qualified Data.Text.Encoding as E+import qualified Network.HTTP as HTTP+import           Network.URI (URI)+import qualified Network.URI as URI+import qualified Text.Feed.Import as TFI+import qualified Text.Feed.Types as TFT+import qualified Text.Atom.Feed as TFAtom+import qualified Text.RSS.Syntax as TFRss+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F++fetchFeedByUrl :: String -> IO (Either String (Feed,[FeedItem]))+fetchFeedByUrl url = +  case URI.parseURI url of+    Nothing  -> return $ Left $ concat ["'",url,"' is no valid URL"]+    Just uri -> fetchAndProcessFeed uri $ parseFeed uri++fetchFeed :: Feed -> IO (Either String (Feed,[FeedItem]))+fetchFeed = fetchFeedByUrl . F.url++parseFeed :: URI -> String -> Either String (Feed,[FeedItem])+parseFeed feedUri content =+  let textFeed = TFI.parseFeedString content+  in+    case textFeed of+      Nothing               -> Left "Can not parse feed items"+      Just (TFT.AtomFeed f) -> Right $ parseAtomFeed feedUri f+      Just (TFT.RSSFeed f)  -> Right $ parseRssFeed feedUri f+      Just _                -> Left "Unsupported feed format"++parseAtomFeed :: URI -> TFAtom.Feed -> (Feed,[FeedItem])+parseAtomFeed feedUri feed =+  let parseFeedItems entry = +        let title   = TFAtom.txtToString $ TFAtom.entryTitle entry+            url     = chooseAtomLink $ TFAtom.entryLinks entry+            content = maybe "" TFAtom.txtToString $ TFAtom.entrySummary entry+        in+          FI.newItem title url content+      feedTitle = TFAtom.txtToString $ TFAtom.feedTitle feed+  in+    ( F.newFeed feedTitle $ show feedUri+    , map parseFeedItems $ TFAtom.feedEntries feed+    )++chooseAtomLink :: [TFAtom.Link] -> String+chooseAtomLink links = +  let selfLink = find (\l -> case TFAtom.linkRel l of +                              Just (Right "self") -> True+                              Just (Left "self")  -> True+                              _                   -> False)+  in+    TFAtom.linkHref $ fromMaybe (head links) $ selfLink links++parseRssFeed :: URI -> TFRss.RSS -> (Feed,[FeedItem])+parseRssFeed feedUri feed = +  let parseFeedItems item =+        let title   = fromMaybe "" $ TFRss.rssItemTitle item+            url     = fromMaybe "" $ TFRss.rssItemLink item+            content = fromMaybe "" $ TFRss.rssItemDescription item+        in+          FI.newItem title url content+      feedTitle = TFRss.rssTitle $ TFRss.rssChannel feed+  in+    ( F.newFeed feedTitle $ show feedUri+    , map parseFeedItems $ TFRss.rssItems $ TFRss.rssChannel feed+    )++fetchAndProcessFeed :: URI -> (String -> Either String a) -> IO (Either String a)+fetchAndProcessFeed uri f = do+  result <- HTTP.simpleHTTP request+  return $ case result of+             Left connectionError -> Left $ show connectionError+             Right response       -> f $ T.unpack . E.decodeUtf8 $ HTTP.rspBody response+  where+    request = HTTP.Request uri HTTP.GET [] BS.empty
+ Lucienne/Fetch/Main.hs view
@@ -0,0 +1,70 @@+import           Prelude hiding (log)+import           Control.Monad (forM_)+import           Control.Monad.Trans (liftIO)+import           Data.Time.LocalTime (getZonedTime)+import           Data.Bson (ObjectId)+import           Database.MongoDB (runIOE,readHostPort,connect,close)+import qualified Lucienne.Database as DB+import           Lucienne.ConnectionReader (ConnectionReader,runConnectionReader)+import           Lucienne.Fetch (fetchFeed)+import           Lucienne.Fetch.Util (partitionM)+import           Lucienne.Model.User (User)+import qualified Lucienne.Model.User as User+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI+import           Lucienne.Args (getArgs,dbConnectionString)++main :: IO ()+main = do+  args <- getArgs+  putStrLn $ "Connecting to database " ++ (dbConnectionString args) ++ " ..."+  connection <- runIOE $ connect $ readHostPort $ dbConnectionString args+  runConnectionReader connection fetch+  close connection+  +fetch :: ConnectionReader ()  +fetch = do +  users <- DB.users+  forM_ users fetchFeedsAndUpdate+  +fetchFeedsAndUpdate :: User -> ConnectionReader ()+fetchFeedsAndUpdate user = do+  feeds <- DB.feedsByUser user+  forM_ feeds $ \f -> do+    log $ concat ["Fetching feed '",F.title f, "' for user '",User.name user,"'"]+    fetchFeedItemsAndUpdate user f+  +fetchFeedItemsAndUpdate :: User -> Feed -> ConnectionReader ()+fetchFeedItemsAndUpdate user feed = +  let fId  = F.id  feed+      fUrl = F.url feed+  in do+   result <- liftIO $ fetchFeed feed+   case result of+     Left message      -> log $ "Could not fetch feed '" ++ fUrl ++ "' because of: " ++ message+     Right (_,items')  -> +       let items = map (FI.setOwner user . FI.setFeedId fId) items'+       in do+         (rest,toAdd) <- partitionExistentFeedItems fId items+         log $ concat ["Fetched ", show $ length items," items (",show $ length toAdd," new)"]+                                +         forM_ toAdd DB.upsertFeedItem +         deleteFeedItems fId rest++partitionExistentFeedItems :: ObjectId -> [FeedItem] -> ConnectionReader ([FeedItem],[FeedItem])+partitionExistentFeedItems feedId =+  partitionM $ \i -> DB.feedItemExists feedId (FI.title i) (FI.url i)++deleteFeedItems :: ObjectId -> [FeedItem] -> ConnectionReader ()+deleteFeedItems feedId feedItems =+  let titlesToRemain = map FI.title feedItems+      urlsToRemain   = map FI.url   feedItems+  in+   DB.deleteMarkedFeedItems feedId titlesToRemain urlsToRemain+   +log :: String -> ConnectionReader ()+log s = do+  time <- liftIO $ getZonedTime+  liftIO $ putStrLn $ concat ["[",show time,"]\t",s]
+ Lucienne/Fetch/Util.hs view
@@ -0,0 +1,14 @@+module Lucienne.Fetch.Util +       (partitionM)+where+  +import Control.Monad (foldM)+  +-- Note: order of elements is reversed in result+partitionM :: Monad m => (a -> m Bool) -> [a] -> m ([a],[a])+partitionM p = foldM (selectM p) ([],[])++selectM :: Monad m => (a -> m Bool) -> ([a], [a]) -> a -> m ([a], [a])+selectM p (ts,fs) x = do +  true <- p x       +  return $ if true then (x:ts, fs) else (ts, x:fs)
+ Lucienne/Main.hs view
@@ -0,0 +1,73 @@+import           Prelude hiding (catch)+import           Control.Monad (msum,when)+import           Control.Monad.Trans (lift)+import           Control.Exception (handle,AsyncException(UserInterrupt))+import           Happstack.Server +  (Conf(port),simpleHTTP',nullConf,dir,dirs,path,nullDir,serveFile,asContentType,uriRest)+import           Database.MongoDB (runIOE,readHostPort,connect,close)+import           Paths_lucienne (getDataFileName)+import           Lucienne.Args (Args,applicationPort,getArgs,dbConnectionString)+import           Lucienne.ConnectionReader (Connection,ConnectionReader,runConnectionReader)+import           Lucienne.Model.User (newUser)+import qualified Lucienne.Database as DB+import           Lucienne.Controller.BasicAuth (basicAuth)+import           Lucienne.Controller.AddNewUser (addNewUser,doAddNewUser)+import           Lucienne.Controller.AddNewFeed (addNewFeed,doAddNewFeed)+import           Lucienne.Controller.DeleteFeed (deleteFeed,doDeleteFeed)+import           Lucienne.Controller.Feed (feed,home)+import           Lucienne.Controller.FeedItem +  (feedItem,doDeleteFeedItem,doReadFeedItem,doChangeFeedItemState)+import           Lucienne.Controller.ChangePassword (changePassword,doChangePassword)+import           Lucienne.Controller.DeleteUser (deleteUser, doDeleteUser)+import           Lucienne.Controller.NotFound (notFound)+import qualified Lucienne.Url as Url++main :: IO ()+main = do+  args <- getArgs+  putStrLn $ "Connecting to database " ++ (dbConnectionString args) ++ " ..."+  connection <- runIOE $ connect $ readHostPort $ dbConnectionString args+  serverConfig <- return $ nullConf { port = applicationPort args }+  putStrLn $ "Running on port " ++ show (applicationPort args) ++ " ..."+  handle (\UserInterrupt -> closeConnection connection) $ do+    runConnectionReader connection addAdminAccountOnInit+    simpleHTTP' (runConnectionReader connection) serverConfig $ msum +       [ urlDir  Url.addNewUser            $ basicAuth addNewUser+       , urlDir  Url.doAddNewUser          $ basicAuth doAddNewUser+       , urlDir  Url.addNewFeed            $ basicAuth addNewFeed+       , urlDir  Url.doAddNewFeed          $ basicAuth doAddNewFeed+       , urlDir  Url.deleteFeed            $ path $ basicAuth . deleteFeed+       , urlDir  Url.doDeleteFeed          $ path $ basicAuth . doDeleteFeed+       , urlDir  Url.feed                  $ path  $ basicAuth . feed+       , urlDir  Url.feedItem              $ path  $ basicAuth . feedItem+       , urlDirs Url.staticCss             $ serveFile' "text/css" "static/css.css"+       , urlDirs Url.staticJs              $ serveFile' "application/javascript" "static/js.js"+       , urlDir  Url.doDeleteFeedItem      $ path $ basicAuth . doDeleteFeedItem+       , urlDir  Url.doReadFeedItem        $ path $ basicAuth . doReadFeedItem+       , urlDir  Url.doChangeFeedItemState $ basicAuth doChangeFeedItemState+       , urlDir  Url.changePassword        $ basicAuth changePassword+       , urlDir  Url.doChangePassword      $ basicAuth doChangePassword+       , urlDir  Url.deleteUser            $ basicAuth deleteUser+       , urlDir  Url.doDeleteUser          $ basicAuth doDeleteUser         +       , nullDir >> basicAuth home+       , uriRest notFound+       ]+        +      where urlDir                 = dir  . tail +            urlDirs                = dirs . tail +            serveFile' ct filePath = do +              filePath' <- lift $ lift $ getDataFileName filePath+              serveFile (asContentType ct) filePath'+       +closeConnection :: Connection -> IO ()+closeConnection c = do+  putStrLn "Closing connection ..."+  close c++addAdminAccountOnInit :: ConnectionReader ()+addAdminAccountOnInit = do+  numUsers <- DB.countUsers+  when (0 == numUsers) $ do+    lift $ putStrLn "Creating admin account: please change password immediately ..."+    _ <- DB.addUser $ newUser "admin" "12345" True+    return ()
+ Lucienne/Model/Feed.hs view
@@ -0,0 +1,60 @@+module Lucienne.Model.Feed +  ( Feed, id, ownerId, title, url, newFeed, setOwner+  , feedByUrlQuery, feedByIdQuery, feedsQuery)+where++import           Prelude hiding (id)+import           Data.Maybe (fromJust)+import qualified Data.CompactString.UTF8 as CS+import           Data.Bson (Document,ObjectId,(=:),at)+import           Lucienne.DatabaseAble (DatabaseAble(..))+import           Lucienne.Model.Util (maybeAddId)+import qualified Lucienne.Model.User as U++data Feed = Feed { _id       :: Maybe ObjectId+                 , _ownerId  :: Maybe String+                 , title     :: String+                 , url       :: String+                 }++newFeed :: String -> String -> Feed+newFeed = Feed Nothing Nothing++id :: Feed -> ObjectId+id = fromJust . _id++ownerId :: Feed -> String+ownerId = fromJust . _ownerId++setOwner :: U.User -> Feed -> Feed+setOwner owner feed = feed { _ownerId = Just $ U.name owner }++instance DatabaseAble Feed where+  toDocument feed = maybeAddId _id feed $ +                    [ "ownerId" =: CS.pack (ownerId feed)+                    , "title"   =: CS.pack (title  feed)+                    , "url"     =: CS.pack (url    feed)+                    ]++  fromDocument document = +    let _id     =             "_id"     `at` document+        ownerId = CS.unpack $ "ownerId"  `at` document+        title   = CS.unpack $ "title"   `at` document+        url     = CS.unpack $ "url"     `at` document+    in+      Feed (Just _id) (Just ownerId) title url++feedByUrlQuery :: String -> String -> Document+feedByUrlQuery ownerId url =+  [ "ownerId" =: CS.pack ownerId+  , "url"     =: CS.pack url+  ]++feedByIdQuery :: String -> ObjectId -> Document+feedByIdQuery ownerId _id =+  [ "ownerId"  =: CS.pack ownerId+  , "_id"      =: _id+  ]++feedsQuery :: String -> Document+feedsQuery ownerId = ["ownerId" =: CS.pack ownerId]
+ Lucienne/Model/FeedItem.hs view
@@ -0,0 +1,120 @@+module Lucienne.Model.FeedItem+  ( FeedItem, id, feedId, title, url, content, dateFetched, state, newItem+  , setOwner, setFeedId+  , feedItemsQuery, readableFeedItemsQuery, feedItemsByFeedIdQuery, feedItemByIdQuery+  , feedItemExistsQuery+  , deleteMarkedFeedItemsQuery, deleteFeedItemsByFeedIdQuery+  , feedItemHeaderProjector, feedItemsSort)+where++import           Prelude hiding (id)+import           System.IO.Unsafe (unsafePerformIO)+import           Data.Maybe (fromJust)+import qualified Data.CompactString.UTF8 as CS+import           Data.Bson (Document,ObjectId,(=:),at)+import           Data.Time.Clock (UTCTime)+import           Data.Time.LocalTime (getZonedTime,zonedTimeToUTC)+import           Lucienne.DatabaseAble (DatabaseAble(..))+import           Lucienne.Model.Util (maybeAddId,readObjectId)+import qualified Lucienne.Model.User as U+import           Lucienne.Model.FeedItemState (FeedItemState)+import qualified Lucienne.Model.FeedItemState as S++data FeedItem = FeedItem { _id         :: Maybe ObjectId+                         , _ownerId    :: Maybe String+                         , _feedId     :: Maybe ObjectId+                         , title       :: String+                         , url         :: String+                         , content     :: String+                         , dateFetched :: UTCTime+                         , state       :: FeedItemState+                         }++newItem :: String -> String -> String -> FeedItem+newItem title url content = +  FeedItem Nothing Nothing Nothing title url content currentTimeInUTC S.New++id,feedId :: FeedItem -> ObjectId+id     = fromJust . _id+feedId = fromJust . _feedId++setOwner :: U.User -> FeedItem -> FeedItem+setOwner owner item = item { _ownerId = Just $ U.name owner }++setFeedId :: ObjectId -> FeedItem -> FeedItem+setFeedId feedId item = item { _feedId = Just feedId }++{-# NOINLINE currentTimeInUTC #-}+currentTimeInUTC :: UTCTime+currentTimeInUTC = +  unsafePerformIO (getZonedTime >>= return . zonedTimeToUTC)++instance DatabaseAble FeedItem where+  toDocument item = maybeAddId _id item $+                    [ "ownerId"     =: CS.pack (fromJust $ _ownerId item)+                    , "feedId"      =:         (fromJust $ _feedId  item)+                    , "title"       =: CS.pack (title               item)+                    , "url"         =: CS.pack (url                 item)+                    , "content"     =: CS.pack (content             item)+                    , "dateFetched" =:          dateFetched         item+                    , "state"       =:         (S.toInteger $ state item)+                    ]++  fromDocument document = +    let id          =             "_id"         `at` document+        ownerId     = CS.unpack $ "ownerId"     `at` document+        feedId      =             "feedId"      `at` document+        title       = CS.unpack $ "title"       `at` document+        url         = CS.unpack $ "url"         `at` document+        content     = CS.unpack $ "content"     `at` document+        dateFetched =             "dateFetched" `at` document+        state       = S.fromInteger $ "state"   `at` document+    in+      FeedItem (Just id) (Just ownerId) (Just feedId) title url content dateFetched state++feedItemsQuery :: String -> Document+feedItemsQuery ownerId = +  [ "ownerId" =: CS.pack ownerId ]++readableFeedItemsQuery :: String -> Document+readableFeedItemsQuery ownerId = +  [ "ownerId" =: CS.pack ownerId+  , "state"   =: [ "$in" =: [S.toInteger S.New, S.toInteger S.Read] ]+  ]++feedItemsByFeedIdQuery :: String -> String -> Document+feedItemsByFeedIdQuery ownerId feedId = +  [ "ownerId" =: CS.pack ownerId+  , "feedId"  =: readObjectId feedId+  , "state"   =: [ "$in" =: [S.toInteger S.New, S.toInteger S.Read] ]+  ]++feedItemByIdQuery :: String -> String -> Document+feedItemByIdQuery ownerId id = +  [ "ownerId" =: CS.pack ownerId+  , "_id"     =: readObjectId id+  ]+  +feedItemExistsQuery :: ObjectId -> String -> String -> Document+feedItemExistsQuery feedId title url = +  [ "feedId" =: feedId+  , "title"  =: CS.pack title+  , "url"  =: CS.pack url+  ]+  +deleteMarkedFeedItemsQuery :: ObjectId -> [String] -> [String] -> Document+deleteMarkedFeedItemsQuery feedId titlesToMaintain urlsToMaintain =+  [ "state"  =: S.toInteger S.Deleted+  , "feedId" =: feedId+  , "title"  =: [ "$not" =: [ "$in" =: map CS.pack titlesToMaintain ] ]+  , "url"    =: [ "$not" =: [ "$in" =: map CS.pack urlsToMaintain ] ]+  ]  +  +deleteFeedItemsByFeedIdQuery :: ObjectId -> Document+deleteFeedItemsByFeedIdQuery feedId = [ "feedId" =: feedId ]++feedItemHeaderProjector :: Document+feedItemHeaderProjector = ["content" =: (0 :: Int)]++feedItemsSort :: Document+feedItemsSort = [ "dateFetched" =: (1 :: Int) ]
+ Lucienne/Model/FeedItemState.hs view
@@ -0,0 +1,21 @@+module Lucienne.Model.FeedItemState+       (FeedItemState(..), fromInteger, toInteger)+where+  +import Prelude hiding (fromInteger,toInteger)+  +data FeedItemState = New | Read | Deleted deriving Eq++fromInteger :: Integer -> FeedItemState+fromInteger i = +  case i of+    0 -> New+    1 -> Read +    2 -> Deleted+    +toInteger :: FeedItemState -> Integer+toInteger state = +  case state of+    New     -> 0+    Read    -> 1+    Deleted -> 2
+ Lucienne/Model/User.hs view
@@ -0,0 +1,48 @@+module Lucienne.Model.User +  ( User, newUser, name, mayAddUsers, changePassword+  , userByNameQuery, userByNameAndPasswordQuery)+where++import qualified Data.ByteString.Lazy.Char8 as BS+import           Data.Digest.Pure.SHA (showDigest,sha1)+import           Data.Bson (Document,(=:),at)+import qualified Data.CompactString.UTF8 as CS+import           Lucienne.DatabaseAble (DatabaseAble(..))++data User = User { name        :: String+                 , password    :: String+                 , mayAddUsers :: Bool+                 } deriving (Show)++newUser :: String -> String -> Bool -> User+newUser name password mayAddUsers = +  User name (hashPassword password) mayAddUsers++hashPassword :: String -> String+hashPassword = showDigest . sha1 . BS.pack++changePassword :: User -> String -> User+changePassword user newPassword =+  user { password = hashPassword newPassword }++instance DatabaseAble User where+  toDocument user = [ "_id"         =: CS.pack (name     user)+                    , "password"    =: CS.pack (password user)+                    , "mayAddUsers" =: mayAddUsers user+                    ]++  fromDocument document = +    let name        = CS.unpack $ "_id"         `at` document+        password    = CS.unpack $ "password"    `at` document+        mayAddUsers =             "mayAddUsers" `at` document+    in+      User name password mayAddUsers++userByNameQuery :: String -> Document+userByNameQuery name = [ "_id" =: CS.pack name ]++userByNameAndPasswordQuery :: String -> String -> Document+userByNameAndPasswordQuery name password = +  [ "_id"      =: CS.pack name+  , "password" =: CS.pack (hashPassword password)+  ]
+ Lucienne/Model/Util.hs view
@@ -0,0 +1,29 @@+module Lucienne.Model.Util+  (maybeAddId, showObjectId, readObjectId, showValue, objectId)+where++import           Data.Bson (Document,Value(ObjId,String),(=:),ObjectId(Oid))+import           Numeric (showHex,readHex)+import qualified Data.CompactString.UTF8 as CS++maybeAddId :: (a -> Maybe ObjectId) -> a -> Document -> Document+maybeAddId getId a document = +  case getId a of+    Nothing -> document+    Just id -> ("_id" =: id) : document++showObjectId :: ObjectId -> String+showObjectId (Oid a b) = showHex a $ showHex b ""++readObjectId :: String -> ObjectId+readObjectId s = Oid (fst $ head $ readHex $ take 8 s) +                     (fst $ head $ readHex $ drop 8 s)+                 +showValue :: Value -> String+showValue value =+  case value of+    ObjId objId -> showObjectId objId+    String s    -> CS.unpack s+    +objectId :: Value -> ObjectId+objectId (ObjId objId) = objId
+ Lucienne/Url.hs view
@@ -0,0 +1,31 @@+module Lucienne.Url+where+  +type Url = String++home                   = "/"++addNewUser             = "/addNewUser"+doAddNewUser           = "/doAddNewUser"++addNewFeed             = "/addNewFeed"+doAddNewFeed           = "/doAddNewFeed"++deleteFeed             = "/deleteFeed"+doDeleteFeed           = "/doDeleteFeed"++feed                   = "/feed"+feedItem               = "/feedItem"++staticCss              = "/static/css.css"+staticJs               = "/static/js.js"++doDeleteFeedItem       = "/doDeleteFeedItem"+doReadFeedItem         = "/doReadFeedItem"+doChangeFeedItemState  = "/doChangeFeedItemState"++changePassword         = "/changePassword"+doChangePassword       = "/doChangePassword"++deleteUser             = "/deleteUser"+doDeleteUser           = "/doDeleteUser"
+ Lucienne/View/AddNewFeed.hs view
@@ -0,0 +1,22 @@+module Lucienne.View.AddNewFeed+  (addNewFeed)+where++import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.View.Common (Errors,template,stringHtml,form)+import qualified Lucienne.Url as Url++addNewFeed :: Errors -> H.Html+addNewFeed errors = +  template "Add new feed" [] errors $+  form Url.doAddNewFeed $+   H.fieldset $ +    do H.legend "Add new feed"+       H.table $ +        do H.tr $+            do H.td $ H.label ! A.for "url" $ stringHtml "URL"+               H.td $ (H.input ! A.type_ "input" ! A.name "url" ! A.value "" ! A.size "64")+           H.tr $ H.td ! A.colspan "2" $ +            H.input ! A.type_ "submit" ! A.value "Add"
+ Lucienne/View/AddNewUser.hs view
@@ -0,0 +1,32 @@+module Lucienne.View.AddNewUser+  (addNewUser)+where++import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.View.Common (Errors,template,stringHtml,form)+import qualified Lucienne.Url as Url++addNewUser :: Errors -> H.Html+addNewUser errors = +  template "Add new user" [] errors $+  form Url.doAddNewUser $+   H.fieldset $ +    do H.legend "Add new user"+       H.table $ +        do H.tr $+            do H.td $ H.label ! A.for "username" $ stringHtml "Username"+               H.td $ H.input ! A.type_ "input" ! A.name "username" ! A.value ""+           H.tr $+            do H.td $ H.label ! A.for "password" $ stringHtml "Password"+               H.td $ H.input ! A.type_ "password" ! A.name "password" ! A.value ""+           H.tr $+            do H.td $ H.label ! A.for "check_password" $ stringHtml "Password check"+               H.td $ H.input ! A.type_ "password" ! A.name "check_password" ! A.value ""+           H.tr $+            do H.td $ H.label ! A.for "may_add_users" $ stringHtml "May add new users"+               H.td $ H.input ! A.type_ "checkbox" ! A.name "may_add_users"++           H.tr $ H.td ! A.colspan "2" $ +            H.input ! A.type_ "submit" ! A.value "Add"
+ Lucienne/View/AreYouSure.hs view
@@ -0,0 +1,18 @@+module Lucienne.View.AreYouSure+       (areYouSure)+where+  +import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.View.Common (template,stringHtml)+import qualified Lucienne.View.Link as L++areYouSure :: String -> String -> (H.Html -> H.Html) -> H.Html+areYouSure caption question link  =+  template caption [] [] $+  H.table $+    do H.tr $ H.td ! A.colspan "2" $ stringHtml question+       H.tr $ do+         H.td $ link     $ stringHtml "Yes"+         H.td $ L.toHome $ stringHtml "No"
+ Lucienne/View/ChangePassword.hs view
@@ -0,0 +1,25 @@+module Lucienne.View.ChangePassword+       (changePassword)+where+  +import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.View.Common (Errors,template,stringHtml,form)+import qualified Lucienne.Url as Url++changePassword :: Errors -> H.Html+changePassword errors = +  template "Change password" [] errors $+  form Url.doChangePassword $+   H.fieldset $ +    do H.legend "Change password"+       H.table $ +        do H.tr $+            do H.td $ H.label ! A.for "password" $ stringHtml "Password"+               H.td $ H.input ! A.type_ "password" ! A.name "password" ! A.value ""+           H.tr $+            do H.td $ H.label ! A.for "check_password" $ stringHtml "Password check"+               H.td $ H.input ! A.type_ "password" ! A.name "check_password" ! A.value ""+           H.tr $ H.td ! A.colspan "2" $ +            H.input ! A.type_ "submit" ! A.value "Change"
+ Lucienne/View/Common.hs view
@@ -0,0 +1,84 @@+module Lucienne.View.Common+  ( Infos, Errors, template, stringHtml, cstringHtml, stringValue, preescapedStringHtml+  , symbol, form, hidden, button, setTitle)+where++import           Control.Monad (when)+import           Data.CompactString.UTF8 (CompactString,unpack)+import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.Constant (programName)++type Infos  = [String]+type Errors = [String]++template :: String -> Infos -> Errors -> H.Html -> H.Html+template title infos errors body =+  H.docTypeHtml $+   do H.head $ +       do H.title $ stringHtml title'+          H.meta ! A.httpEquiv "Content-Type" ! A.content "text/html;charset=utf-8"+          H.link ! A.rel "stylesheet" ! A.type_ "text/css" ! A.href "/static/css.css"+          H.script ! A.src "/static/js.js" ! A.type_ "text/javascript" $ return ()+      H.body $ do+       when (not . null $ errors) $ showErrors errors+       when (not . null $ infos)  $ showInfos  infos+       body+       +  where+    title' = if null title then programName else unwords [programName,"-",title]++showInfos :: Infos -> H.Html+showInfos infos = +  H.div ! A.class_ "infoBox" $ do+    H.strong $ H.toHtml ("Information" :: String)+    H.br+    H.ul $ mapM_ showInfo infos  ++showErrors :: Errors -> H.Html+showErrors errors =+  H.div ! A.class_ "errorBox" $ do+    H.strong $ H.toHtml ("Error" :: String)+    H.br+    H.ul $ mapM_ showError errors  ++showInfo :: String -> H.Html+showInfo = H.li . H.toHtml++showError :: String -> H.Html+showError = H.li . H.toHtml++stringHtml :: String -> H.Html+stringHtml = H.toHtml++cstringHtml :: CompactString -> H.Html+cstringHtml = H.toHtml . unpack++stringValue :: String -> H.AttributeValue+stringValue = H.toValue++preescapedStringHtml :: String -> H.Html+preescapedStringHtml = H.preEscapedString++symbol :: String -> H.Html  +symbol code = H.span ! A.class_ "symbol" $ preescapedStringHtml code++form :: String -> H.Html -> H.Html+form destination nested = +  H.form ! A.action (stringValue destination) +  ! A.method "post" ! A.enctype "multipart/form-data" $ nested+  +hidden :: String -> String -> H.Html+hidden name value = +  H.input ! A.type_ "hidden" ! A.name (stringValue name) ! A.value (stringValue value)+  +button :: String -> String -> Maybe String -> H.Html+button name label = +  let b = H.input ! A.type_ "submit" ! A.name  (stringValue name)+          ! A.value (stringValue label)+  in+   maybe b (\accessKey -> b ! A.accesskey (stringValue accessKey))++setTitle :: String -> H.Html -> H.Html+setTitle title html = html ! A.title (stringValue title)
+ Lucienne/View/DeleteFeed.hs view
@@ -0,0 +1,16 @@+module Lucienne.View.DeleteFeed+       (deleteFeed)+where+       +import qualified Text.Blaze.Html4.Strict as H+import           Lucienne.View.AreYouSure (areYouSure)+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F+import           Lucienne.View.Link (toDoDeleteFeed)++deleteFeed :: Feed -> H.Html+deleteFeed feed =+  areYouSure "Delete feed" +    ("Do you really want to delete the feed '" ++ (F.title feed) ++ "'?")+    (toDoDeleteFeed feed)+
+ Lucienne/View/DeleteUser.hs view
@@ -0,0 +1,16 @@+module Lucienne.View.DeleteUser+       (deleteUser)+where+  +import qualified Text.Blaze.Html4.Strict as H+import qualified Lucienne.Model.User as U+import           Lucienne.Model.User (User)+import           Lucienne.View.AreYouSure (areYouSure)+import           Lucienne.View.Link (to)+import           Lucienne.Url (doDeleteUser)++deleteUser :: User -> H.Html+deleteUser user =+  areYouSure "Delete User"+  ("Are you sure you want to delete user '" ++ U.name user ++ "'?")+  (to doDeleteUser)
+ Lucienne/View/Feed.hs view
@@ -0,0 +1,106 @@+module Lucienne.View.Feed+  (feed, home)+where++import           Control.Monad (when)+import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Lucienne.Constant (programName)+import           Lucienne.View.Common+  (Infos,template,stringHtml,stringValue,symbol,form,hidden,button,setTitle)+import qualified Lucienne.View.Link as L+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI+import qualified Lucienne.Model.FeedItemState as S+import           Lucienne.Model.Util (showObjectId)+import           Lucienne.Model.User (User)+import qualified Lucienne.Model.User as U+import qualified Lucienne.Url as Url++feed :: User -> Feed -> [FeedItem] -> [Feed] -> H.Html+feed user feed fItems allFeeds =+  template (F.title feed) [] [] $ do+    H.div ! A.class_ "leftMenu" $ do+      feedsOverview (Just feed) allFeeds+      controlPanel user $ Just feed+    feedItems (Just feed) fItems++home :: User -> Infos -> [FeedItem] -> [Feed] -> H.Html+home user infos fItems allFeeds =+  template programName infos [] $ do+    H.div ! A.class_ "leftMenu" $ do+      feedsOverview Nothing allFeeds+      controlPanel user Nothing+    feedItems Nothing fItems++feedsOverview :: Maybe Feed -> [Feed] -> H.Html+feedsOverview viewed items =+  let feedLink False feed = H.li . L.toFeed feed L.Default    . stringHtml+      feedLink True  feed = H.li . L.toFeed feed L.Highlight  . stringHtml+      overview feed = case viewed of+        Nothing -> feedLink False                feed (F.title feed)+        Just v  -> feedLink (F.id v == F.id feed) feed (F.title feed)+  in+   H.ul $ do+     H.li $ L.toHome $ stringHtml "All feeds"+     mapM_ overview items++controlPanel :: User -> Maybe Feed -> H.Html+controlPanel user mFeed =+  H.ul $ do+    H.li $ L.to Url.addNewFeed     $ stringHtml "Add new feed"+    when (U.mayAddUsers user) $ H.li $ L.to Url.addNewUser $ stringHtml "Add new user"+    H.li $ L.to Url.changePassword $ stringHtml "Change password"+    H.li $ L.to Url.deleteUser     $ stringHtml "Delete user"+    case mFeed of+         Nothing   -> return ()+         Just feed -> H.li $ L.toDeleteFeed feed $ stringHtml "Delete feed"++feedItems :: Maybe Feed -> [FeedItem] -> H.Html+feedItems mFeed items =+  form Url.doChangeFeedItemState $ do+    hidden "numItems" $ show $ length items+    maybe (return ()) (hidden "feedId" . showObjectId . F.id) mFeed+    H.table $ do+      H.tr $    H.th ! A.colspan "2" ! A.class_ "feedTitle" $ header++      H.tr $ do H.td ""+                H.td $ markAsReadButton >> symbol "&nbsp;" >> deleteButton+      mapM_ feedItemHeader $ zip [0..] items+      H.tr $ do H.td ""+                H.td $ markAsReadButton >> symbol "&nbsp;" >> deleteButton+  where+    header = maybe (stringHtml programName)+             (\f -> stringHtml (F.title f) >> (L.toFeedUrl f $ symbol "&#8599;")+             ) mFeed+    markAsReadButton = button "markAsRead" "Mark as read [r]" (Just "r")+    deleteButton     = button "delete" "Delete [d]" (Just "d")++feedItemHeader :: (Integer,FeedItem) -> H.Html+feedItemHeader (index,item) =+  H.tr $ do H.td ! A.class_ "feedItemHeaderSymbols" $ feedItemHeaderSymbols index item+            H.td $ L.toFeedItem item style !+              A.title (stringValue $ show $ FI.dateFetched item) $+              (stringHtml $ FI.title item)+  where+    style = case FI.state item of+      S.Read -> L.Inactive+      _      -> L.Active++feedItemHeaderSymbols :: Integer -> FeedItem -> H.Html+feedItemHeaderSymbols index item = do++  setTitle "Toggle mark for all older items" $ L.to runJS  $ symbol "&#8593;"+  symbol "&nbsp;"++  H.input ! A.type_ "checkbox"+    ! A.name (stringValue $ "feedItem" ++ show index)+    ! A.value (stringValue $ showObjectId $ FI.id item)++  symbol "&nbsp;"+  symbol "&nbsp;"+    where+      runJS = "javascript:toggleMarkOlder (" ++ show index ++ ")"
+ Lucienne/View/FeedItem.hs view
@@ -0,0 +1,30 @@+module Lucienne.View.FeedItem+  (feedItem)+where+  +import qualified Text.Blaze.Html4.Strict as H+import           Lucienne.View.Common (template,stringHtml,preescapedStringHtml,symbol)+import qualified Lucienne.View.Link as L+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI++feedItem :: FeedItem -> H.Html+feedItem item = +  template (FI.title item) [] [] $ do+    H.table $ do+      H.tr $ H.td $ feedItemSymbols item+      H.tr $ H.td $ H.strong $ stringHtml $ FI.title item+      H.tr $ H.td $ H.small  $ stringHtml $ show $ FI.dateFetched item+      H.tr $ H.td $ L.toFeedItemUrl item $ stringHtml $ FI.url item+    H.p $ preescapedStringHtml $ FI.content item+    H.hr+    H.p $ feedItemSymbols item++feedItemSymbols :: FeedItem -> H.Html+feedItemSymbols item = do+  L.toFeed'            item $ symbol "&#8630;"+  symbol "&nbsp;"+  L.toDoDeleteFeedItem item $ symbol "&#10007;"    +  symbol "&nbsp;"+  L.toFeedItemUrl      item $ symbol "&#8599;"+
+ Lucienne/View/Link.hs view
@@ -0,0 +1,69 @@+module Lucienne.View.Link+       ( Style (..)+       , to, toHome, toFeedUrl, toFeedItemUrl, toFeed, toFeed', toDeleteFeed, toDoDeleteFeed+       , toFeedItem, toDoDeleteFeedItem, toDoReadFeedItem)+where+  +import           Text.Blaze ((!))+import qualified Text.Blaze.Html4.Strict as H+import qualified Text.Blaze.Html4.Strict.Attributes as A+import           Data.Bson (ObjectId)+import           Lucienne.View.Common (stringValue,setTitle)+import           Lucienne.Model.Feed (Feed)+import qualified Lucienne.Model.Feed as F+import           Lucienne.Model.FeedItem (FeedItem)+import qualified Lucienne.Model.FeedItem as FI+import           Lucienne.Model.Util (showObjectId)+import qualified Lucienne.Url as Url++data Style = Default | Highlight | Active | Inactive++to :: String -> H.Html -> H.Html+to url = to' url Default++to' :: String -> Style -> H.Html -> H.Html+to' url style nested = +  H.a ! toAttribute style ! A.href (stringValue url) $ nested++toAttribute :: Style -> H.Attribute+toAttribute style =+  case style of+    Default    -> A.class_ "default"+    Highlight  -> A.class_ "highlight"+    Active     -> A.class_ "active"+    Inactive   -> A.class_ "inactive"++toFeedUrl :: Feed -> H.Html -> H.Html+toFeedUrl feed = setTitle "Go to feed URL" . (to $ F.url feed)++toHome :: H.Html -> H.Html+toHome = to Url.home++toDoDeleteFeed,toDeleteFeed :: Feed -> H.Html -> H.Html+toDeleteFeed   feed = toId Url.deleteFeed   (F.id feed) Default+toDoDeleteFeed feed = toId Url.doDeleteFeed (F.id feed) Default++toFeed :: Feed -> Style -> H.Html -> H.Html+toFeed feed style = toId Url.feed (F.id feed) style++toFeedItem :: FeedItem -> Style -> H.Html -> H.Html+toFeedItem item = toId Url.feedItem (FI.id item)++toFeedItemUrl,toFeed',toDoDeleteFeedItem,toDoReadFeedItem :: FeedItem -> H.Html -> H.Html+toFeedItemUrl item = setTitle "Go to URL" . to (FI.url item)++toFeed' item = toId Url.feed (FI.feedId item) Default++toDoDeleteFeedItem item = +  setTitle "Delete" . toId Url.doDeleteFeedItem (FI.id item) Default+  +toDoReadFeedItem item = +  setTitle "Mark as read" . toId Url.doReadFeedItem (FI.id item) Default+  +toId :: Url.Url -> ObjectId -> Style -> H.Html -> H.Html+toId url objId style nested  = +  H.a ! +    toAttribute style !+    A.href (stringValue $ url ++ "/" ++ (showObjectId objId)) $+    nested+
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ lucienne.cabal view
@@ -0,0 +1,113 @@+Name:                lucienne+Version:             0.0.1+Synopsis:            Server side feed aggregator/reader+License:             GPL+License-file:        LICENSE+Author:              Alexander Bau+Maintainer:          Alexander Bau+Build-Type:          Simple+Cabal-Version:       >= 1.9.2+Category:            Web+Homepage:            http://www.imn.htwk-leipzig.de/~abau/lucienne+Description: Lucienne is a simple server side feed aggregator/reader that helps you managing your subscribed feeds.+  It provides multi user support using basic access authentication. A running mongoDB (<http://www.mongodb.org>) serves as database backend.+  .+  /Installing instructions:/+     .+     1. Run a mongoDB instance+     .+     2. @cabal install@ this package. This will result in two executables: @lucienne@ and @lucienne-fetch@.+     .+     3. Run @lucienne@. You might want to limit the maximum heap size, +     e.g. @lucienne +RTS -M30m@+     .+     4. Run @lucienne-fetch@ periodically (e.g. by a cron job)+     .+  Lucienne accepts the following options:+  .+  > lucienne: +  >   -p PORT  --port=PORT          Port of incoming requests+  >   -d HOST  --databaseHost=HOST  Database host+  >   -e PORT  --databasePort=PORT  Database port+  >   -h       --help               Print this help++Data-Files:          static/js.js+                   , static/css.css+++Executable lucienne+  Main-is:           Lucienne/Main.hs+  Extensions:        OverloadedStrings+  Ghc-options:       -W -fno-warn-incomplete-patterns +  Build-Depends:       base               >= 3 && < 5+                     , mongoDB            == 1.2.*+                     , compact-string-fix == 0.3.*+                     , happstack          == 7.0.*+                     , happstack-server   == 7.0.*+                     , blaze-html         == 0.4.*+                     , mtl                == 2.1.*+                     , bson               == 0.1.*+                     , SHA                == 1.5.*+                     , bytestring         == 0.9.*+                     , HTTP               == 4000.2.*+                     , feed               == 0.3.*+                     , time               == 1.4.*+                     , network            == 2.3.*+                     , text               == 0.11.*+                     , base64-bytestring  == 0.1.*++  Other-Modules:       Lucienne.Args+                     , Lucienne.ConnectionReader+                     , Lucienne.Constant+                     , Lucienne.Controller+                     , Lucienne.Controller.AddNewFeed+                     , Lucienne.Controller.AddNewUser+                     , Lucienne.Controller.BasicAuth+                     , Lucienne.Controller.ChangePassword+                     , Lucienne.Controller.DeleteFeed+                     , Lucienne.Controller.DeleteUser+                     , Lucienne.Controller.Feed+                     , Lucienne.Controller.FeedItem+                     , Lucienne.Controller.Imports+                     , Lucienne.Controller.Message+                     , Lucienne.Controller.NotFound+                     , Lucienne.Controller.Util+                     , Lucienne.DatabaseAble+                     , Lucienne.Database+                     , Lucienne.Fetch+                     , Lucienne.Model.Feed+                     , Lucienne.Model.FeedItem+                     , Lucienne.Model.FeedItemState+                     , Lucienne.Model.User+                     , Lucienne.Model.Util+                     , Lucienne.Url+                     , Lucienne.View.AddNewFeed+                     , Lucienne.View.AddNewUser+                     , Lucienne.View.AreYouSure+                     , Lucienne.View.ChangePassword+                     , Lucienne.View.Common+                     , Lucienne.View.DeleteFeed+                     , Lucienne.View.DeleteUser+                     , Lucienne.View.Feed+                     , Lucienne.View.FeedItem+                     , Lucienne.View.Link+                     , Paths_lucienne++Executable lucienne-fetch+  Main-is:           Lucienne/Fetch/Main.hs+  Extensions:        OverloadedStrings+  Ghc-options:       -W -fno-warn-incomplete-patterns +  Build-Depends:       base               >= 3 && < 5+                     , mongoDB            == 1.2.*+                     , compact-string-fix == 0.3.*+                     , mtl                == 2.1.*+                     , bson               == 0.1.*+                     , SHA                == 1.5.*+                     , bytestring         == 0.9.*+                     , HTTP               == 4000.2.*+                     , feed               == 0.3.*+                     , time               == 1.4.*+                     , network            == 2.3.*+                     , text               == 0.11.*+  Other-Modules:       Lucienne.Fetch.Util+
+ static/css.css view
@@ -0,0 +1,35 @@+body {+    font-family : sans-serif ;+}++span.symbol {+  font-size: larger ;+}++div.leftMenu {+    float : left ;+    font-size : smaller ;+    margin-right : 3em; +}++th.feedTitle {+    font-size : larger ;+    padding-bottom : 1em;+}++td.feedItemHeaderSymbols {+  white-space: nowrap ;+}++a.default        { color: #000000 ; font-weight: normal ; }+a.highlight      { color: #000000 ; font-weight: bold ; }++a.active:link    { color: #000000 ; font-weight: normal ; }+a.active:visited { color: #cccccc ; font-weight: normal ; }+a.active:focus   {                  font-weight: normal ; }+a.active:hover   {                  font-weight: normal ; }+a.active:active  {                  font-weight: normal ; }+a.inactive       { color: #cccccc ; font-weight: normal ; }++div.infoBox { background-color: #eeeeee ; }+div.errorBox { background-color: #eeeeee ; }
+ static/js.js view
@@ -0,0 +1,9 @@+function toggleMarkOlder (index) {+    for (var i = index ; i >= 0; i--) {+        var checkBox = document.getElementsByName("feedItem" + i)[0];+        if (checkBox.checked)+            checkBox.checked = false;+        else+            checkBox.checked = true;+    }+}