src/server/gf-server.cabal: compile it as a common library + executables

src/server/exec/pgf-http.hs

@@ -0,0 +1,49 @@
+
+import Network.CGI(requestMethod,getVarWithDefault,logCGI,handleErrors,liftIO)
+import System.Environment(getArgs)
+import System.Directory(getDirectoryContents)
+import System.FilePath(takeExtension,takeFileName,takeDirectory,(</>))
+       
+import RunHTTP(runHTTP,Options(..))
+import ServeStaticFile(serveStaticFile)
+import PGFService(cgiMain',getPath,stderrToFile,logFile,newPGFCache)
+import FastCGIUtils(outputJSONP,handleCGIErrors)
+
+import Paths_gf_server(getDataDir)
+
+main :: IO ()
+main = do datadir <- getDataDir
+          let defaults = Options { documentRoot = datadir</>"www",
+                                   port = 41296 }
+          cache <- newPGFCache
+          args <- getArgs
+          options <- case args of
+                       []     -> return defaults
+                       [port] -> do p <- readIO port
+                                    return defaults{port=p}    
+          putStrLn $ "Starting HTTP server, open http://localhost:"
+                     ++show (port options)++"/ in your web browser.\n"
+          print options
+          putStrLn $ "logFile="++logFile
+          stderrToFile logFile
+          httpMain cache options
+
+
+httpMain cache options = runHTTP options (do log ; serve =<< getPath)
+  where
+    log = do method <- requestMethod
+             uri    <- getVarWithDefault "REQUEST_URI" "-"
+             logCGI $ method++" "++uri
+
+    serve path =
+        handleErrors . handleCGIErrors $
+        if takeExtension path==".pgf"
+        then cgiMain' cache path
+        else if takeFileName path=="grammars.cgi"
+             then grammarList (takeDirectory path)
+             else serveStaticFile path
+
+    grammarList dir =
+        do paths <- liftIO $ getDirectoryContents dir
+           let pgfs = [path|path<-paths, takeExtension path==".pgf"]
+           outputJSONP pgfs