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https://github.com/GrammaticalFramework/gf-core.git
synced 2026-04-09 04:59:31 -06:00
tweak gf-server.cabal
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krasimir
209
src/server/ContentService.hs
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209
src/server/ContentService.hs
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@@ -0,0 +1,209 @@
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{-# LANGUAGE DeriveDataTypeable, CPP #-}
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import PGF (PGF)
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import qualified PGF
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import Cache
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import FastCGIUtils
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import URLEncoding
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import Data.Maybe
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import Network.FastCGI
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import Text.JSON
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import qualified Data.ByteString.Lazy as BS
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import qualified Codec.Binary.UTF8.String as UTF8 (encodeString, decodeString)
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import Control.Monad
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import Control.Exception
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import System.Environment(getArgs)
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import System.Time
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import System.Locale
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import System.FilePath
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import Database.HSQL.MySQL
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logFile :: FilePath
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logFile = "content-error.log"
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main :: IO ()
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main = do
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args <- getArgs
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case args of
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[] -> do stderrToFile logFile
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cache <- newCache dbConnect
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#ifndef mingw32_HOST_OS
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runFastCGIConcurrent' forkIO 100 (cgiMain cache)
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#else
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runFastCGI (cgiMain cache)
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#endif
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[fpath] -> do c <- dbConnect fpath
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dbInit c
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getPath = getVarWithDefault "SCRIPT_FILENAME" ""
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cgiMain :: Cache Connection -> CGI CGIResult
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cgiMain cache = handleErrors . handleCGIErrors $
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cgiMain' cache =<< getPath
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cgiMain' :: Cache Connection -> FilePath -> CGI CGIResult
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cgiMain' cache path =
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do c <- liftIO $ readCache cache path
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mb_command <- liftM (liftM (urlDecodeUnicode . UTF8.decodeString)) (getInput "command")
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case mb_command of
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Just "save" -> doSave c =<< getId
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Just "load" -> doLoad c =<< getId
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Just "search" -> doSearch c =<< getQuery
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Just "delete" -> doDelete c =<< getIds
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Just "update_grammar"
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-> do mb_pgf <- getFile
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name <- getFileName
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descr <- getDescription
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doUpdateGrammar c mb_pgf name descr
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Just cmd -> throwCGIError 400 "Unknown command" ["Unknown command: " ++ show cmd]
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Nothing -> throwCGIError 400 "No command given" ["No command given"]
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where
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getId :: CGI (Maybe Int)
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getId = readInput "id"
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getIds :: CGI [Int]
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getIds = fmap (map read) (getMultiInput "id")
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getQuery :: CGI String
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getQuery = fmap (fromMaybe "") (getInput "query")
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getFile :: CGI (Maybe BS.ByteString)
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getFile = getInputFPS "file"
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getFileName :: CGI String
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getFileName = do
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mb_name <- getInput "name"
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mb_file <- getInputFilename "file"
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return (fromMaybe "" (mb_name `mplus` mb_file))
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getDescription :: CGI String
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getDescription = fmap (fromMaybe "") (getInput "description")
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doSave c mb_id = do
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body <- getBody
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r <- liftIO $ handleSql (return . Left) $ do
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s <- query c ("call saveDocument("++toSqlValue mb_id++","++toSqlValue body++")")
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[id] <- collectRows (\s -> getFieldValue s "id") s
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return (Right id)
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case r of
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Right id -> outputJSONP (toJSObject [("id", id :: Int)])
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Left e -> throwCGIError 400 "Saving failed" (lines (show e))
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doLoad c Nothing = throwCGIError 400 "Loading failed" ["Missing ID"]
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doLoad c (Just id) = do
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r <- liftIO $ handleSql (return . Left) $ do
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s <- query c ("SELECT id,title,created,modified,content\n"++
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"FROM Documents\n"++
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"WHERE id="++toSqlValue id)
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rows <- collectRows getDocument s
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return (Right rows)
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case r of
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Right [row] -> outputJSONP row
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Right _ -> throwCGIError 400 "Missing document" ["ID="++show id]
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Left e -> throwCGIError 400 "Loading failed" (lines (show e))
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where
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getDocument s = do
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id <- getFieldValue s "id"
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title <- getFieldValue s "title"
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created <- getFieldValue s "created" >>= pt
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modified <- getFieldValue s "modified" >>= pt
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content <- getFieldValue s "content"
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return $ toJSObject [ ("id", showJSON (id :: Int))
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, ("title", showJSON (title :: String))
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, ("created", showJSON (created :: String))
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, ("modified", showJSON (modified :: String))
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, ("content", showJSON (content :: String))
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]
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doSearch c q = do
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r <- liftIO $ handleSql (return . Left) $ do
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s <- query c ("SELECT id,title,created,modified\n"++
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"FROM Documents"++
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if null q
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then ""
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else "\nWHERE MATCH(content) AGAINST ("++toSqlValue q++" IN BOOLEAN MODE)")
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rows <- collectRows getDocument s
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return (Right rows)
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case r of
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Right rows -> outputJSONP rows
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Left e -> throwCGIError 400 "Saving failed" (lines (show e))
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where
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getDocument s = do
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id <- getFieldValue s "id"
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title <- getFieldValue s "title"
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created <- getFieldValue s "created" >>= pt
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modified <- getFieldValue s "modified" >>= pt
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return $ toJSObject [ ("id", showJSON (id :: Int))
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, ("title", showJSON (title :: String))
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, ("created", showJSON (created :: String))
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, ("modified", showJSON (modified :: String))
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]
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pt ct = liftM (formatCalendarTime defaultTimeLocale "%d %b %Y") (toCalendarTime ct)
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doDelete c ids = do
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liftIO $
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inTransaction c $ \c ->
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mapM_ (\id -> execute c ("DELETE FROM Documents WHERE id = "++toSqlValue id)) ids
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outputJSONP (toJSObject ([] :: [(String,String)]))
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doUpdateGrammar c mb_pgf name descr = do
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r <- liftIO $ handleSql (return . Left) $ do
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s <- query c ("call updateGrammar(null,"++toSqlValue name++","++toSqlValue descr++")")
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[id] <- collectRows (\s -> getFieldValue s "id") s
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return (Right id)
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id <- case r of
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Right id -> return (id :: Int)
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Left e -> throwCGIError 400 "Saving failed" (lines (show e))
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path <- pathTranslated
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case mb_pgf of
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Just pgf -> liftIO (BS.writeFile (path </> ".." </> "grammars" </> addExtension (show id) "pgf") pgf)
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Nothing -> return ()
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outputHTML "<H1>Done.</H1>"
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dbConnect fpath = do
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[host,db,user,pwd] <- fmap words $ readFile fpath
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connect host db user pwd
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dbInit c =
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handleSql (fail . show) $ do
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inTransaction c $ \c -> do
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execute c "DROP TABLE IF EXISTS Documents"
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execute c ("CREATE TABLE Documents(id INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY,"++
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" title VARCHAR(256) NOT NULL,\n"++
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" created TIMESTAMP NOT NULL DEFAULT 0,\n"++
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" modified TIMESTAMP NOT NULL DEFAULT 0,\n"++
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" content TEXT NOT NULL,\n"++
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" FULLTEXT INDEX (content)) TYPE=MyISAM")
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execute c "DROP TABLE IF EXISTS Grammars"
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execute c ("CREATE TABLE Grammars(id INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY,"++
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" name VARCHAR(64) NOT NULL,\n"++
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" description VARCHAR(512) NOT NULL,\n"++
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" created TIMESTAMP NOT NULL DEFAULT 0,\n"++
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" modified TIMESTAMP NOT NULL DEFAULT 0)")
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execute c "DROP PROCEDURE IF EXISTS saveDocument"
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execute c ("CREATE PROCEDURE saveDocument(IN id INTEGER, content TEXT)\n"++
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"BEGIN\n"++
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" IF id IS NULL THEN\n"++
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" INSERT INTO Documents(title,content,created,modified) VALUES (content,content,NOW(),NOW());\n"++
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" SELECT LAST_INSERT_ID() as id;\n"++
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" ELSE\n"++
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" UPDATE Documents d SET content = content, modified=NOW() WHERE d.id = id;\n"++
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" select id;\n"++
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" END IF;\n"++
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"END")
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execute c "DROP PROCEDURE IF EXISTS updateGrammar"
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execute c ("CREATE PROCEDURE updateGrammar(IN id INTEGER, name VARCHAR(64), description VARCHAR(512))\n"++
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"BEGIN\n"++
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" IF id IS NULL THEN\n"++
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" INSERT INTO Grammars(name,description,created,modified) VALUES (name,description,NOW(),NOW());\n"++
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" SELECT LAST_INSERT_ID() as id;\n"++
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" ELSE\n"++
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" UPDATE Grammars gr SET name = name, description=description, modified=NOW() WHERE gr.id = id;\n"++
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" select id;\n"++
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" END IF;\n"++
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"END")
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@@ -3,14 +3,40 @@ version: 1.0
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cabal-version: >= 1.2
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build-type: Custom
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license: GPL
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license-file: LICENSE
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license-file: ../../LICENSE
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synopsis: FastCGI Server for Grammatical Framework
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flag fastcgi
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Description: Build pgf-fcgi (requires the fastcgi package)
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Description: Build the fcgi services (requires the fastcgi package)
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Default: True
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executable pgf-fcgi
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executable pgf-http
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main-is: pgf-http.hs
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other-modules: PGFService FastCGIUtils Cache URLEncoding
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RunHTTP ServeStaticFile
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ghc-options: -threaded
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build-depends: base >=4.2 && <5,
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old-time,
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directory,
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filepath,
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containers,
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process,
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gf >= 3.1,
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cgi >= 3001.1.8.0,
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httpd-shed,
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network,
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json >= 0.3.3,
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utf8-string >= 0.3.1.1,
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bytestring,
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pretty,
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random
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if os(windows)
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ghc-options: -optl-mwindows
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else
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build-depends: unix
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executable pgf-service
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main-is: pgf-fcgi.hs
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other-modules: PGFService FastCGIUtils Cache URLEncoding
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ghc-options: -threaded
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@@ -40,34 +66,13 @@ executable pgf-fcgi
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else
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build-depends: unix
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executable pgf-http
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main-is: pgf-http.hs
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other-modules: PGFService FastCGIUtils Cache URLEncoding
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RunHTTP ServeStaticFile
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ghc-options: -threaded
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executable content-service
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if flag(fastcgi)
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build-depends: fastcgi >= 3001.0.2.2
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buildable: True
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else
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buildable: False
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build-depends: base >=4.2 && <5,
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old-time,
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directory,
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filepath,
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containers,
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process,
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gf >= 3.1,
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cgi >= 3001.1.8.0,
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httpd-shed,
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network,
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json >= 0.3.3,
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utf8-string >= 0.3.1.1,
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bytestring,
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pretty,
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random
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if os(windows)
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ghc-options: -optl-mwindows
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else
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build-depends: unix
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executable content-server
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buildable: False
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build-depends: base >=4.2 && <5
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hsql, hsql-mysql, old-locale
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main-is: ContentService.hs
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