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Diffstat (limited to 'src/lib/Xmobar/Plugins/Monitors/Weather.hs')
| -rw-r--r-- | src/lib/Xmobar/Plugins/Monitors/Weather.hs | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/src/lib/Xmobar/Plugins/Monitors/Weather.hs b/src/lib/Xmobar/Plugins/Monitors/Weather.hs deleted file mode 100644 index cb5bf07..0000000 --- a/src/lib/Xmobar/Plugins/Monitors/Weather.hs +++ /dev/null @@ -1,255 +0,0 @@ -{-# LANGUAGE CPP #-} ------------------------------------------------------------------------------ --- | --- Module : Plugins.Monitors.Weather --- Copyright : (c) Andrea Rossato --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org> --- Stability : unstable --- Portability : unportable --- --- A weather monitor for Xmobar --- ------------------------------------------------------------------------------ - -module Xmobar.Plugins.Monitors.Weather where - -import Xmobar.Plugins.Monitors.Common - -import qualified Control.Exception as CE - -#ifdef HTTP_CONDUIT -import Network.HTTP.Conduit -import Network.HTTP.Types.Status -import Network.HTTP.Types.Method -import qualified Data.ByteString.Lazy.Char8 as B -#else -import Network.HTTP -#endif - -import Text.ParserCombinators.Parsec - -weatherConfig :: IO MConfig -weatherConfig = mkMConfig - "<station>: <tempC>C, rh <rh>% (<hour>)" -- template - ["station" -- available replacements - , "stationState" - , "year" - , "month" - , "day" - , "hour" - , "windCardinal" - , "windAzimuth" - , "windMph" - , "windKnots" - , "windKmh" - , "windMs" - , "visibility" - , "skyCondition" - , "tempC" - , "tempF" - , "dewPointC" - , "dewPointF" - , "rh" - , "pressure" - ] - -data WindInfo = - WindInfo { - windCardinal :: String -- cardinal direction - , windAzimuth :: String -- azimuth direction - , windMph :: String -- speed (MPH) - , windKnots :: String -- speed (knot) - , windKmh :: String -- speed (km/h) - , windMs :: String -- speed (m/s) - } deriving (Show) - -data WeatherInfo = - WI { stationPlace :: String - , stationState :: String - , year :: String - , month :: String - , day :: String - , hour :: String - , windInfo :: WindInfo - , visibility :: String - , skyCondition :: String - , tempC :: Int - , tempF :: Int - , dewPointC :: Int - , dewPointF :: Int - , humidity :: Int - , pressure :: Int - } deriving (Show) - -pTime :: Parser (String, String, String, String) -pTime = do y <- getNumbersAsString - char '.' - m <- getNumbersAsString - char '.' - d <- getNumbersAsString - char ' ' - (h:hh:mi:mimi) <- getNumbersAsString - char ' ' - return (y, m, d ,h:hh:":"++mi:mimi) - -noWind :: WindInfo -noWind = WindInfo "μ" "μ" "0" "0" "0" "0" - -pWind :: Parser WindInfo -pWind = - let tospace = manyTill anyChar (char ' ') - toKmh knots = knots $* 1.852 - toMs knots = knots $* 0.514 - ($*) :: String -> Double -> String - op1 $* op2 = show (round ((read op1::Double) * op2)::Integer) - - -- Occasionally there is no wind and a METAR report gives simply, "Wind: Calm:0" - wind0 = do manyTill skipRestOfLine (string "Wind: Calm:0") - return noWind - windVar = do manyTill skipRestOfLine (string "Wind: Variable at ") - mph <- tospace - string "MPH (" - knot <- tospace - manyTill anyChar newline - return $ WindInfo "μ" "μ" mph knot (toKmh knot) (toMs knot) - wind = do manyTill skipRestOfLine (string "Wind: from the ") - cardinal <- tospace - char '(' - azimuth <- tospace - string "degrees) at " - mph <- tospace - string "MPH (" - knot <- tospace - manyTill anyChar newline - return $ WindInfo cardinal azimuth mph knot (toKmh knot) (toMs knot) - in try wind0 <|> try windVar <|> try wind <|> return noWind - -pTemp :: Parser (Int, Int) -pTemp = do let num = digit <|> char '-' <|> char '.' - f <- manyTill num $ char ' ' - manyTill anyChar $ char '(' - c <- manyTill num $ char ' ' - skipRestOfLine - return (floor (read c :: Double), floor (read f :: Double)) - -pRh :: Parser Int -pRh = do s <- manyTill digit (char '%' <|> char '.') - return $ read s - -pPressure :: Parser Int -pPressure = do manyTill anyChar $ char '(' - s <- manyTill digit $ char ' ' - skipRestOfLine - return $ read s - -{- - example of 'http://weather.noaa.gov/pub/data/observations/metar/decoded/VTUD.TXT': - Station name not available - Aug 11, 2013 - 10:00 AM EDT / 2013.08.11 1400 UTC - Wind: from the N (350 degrees) at 1 MPH (1 KT):0 - Visibility: 4 mile(s):0 - Sky conditions: mostly clear - Temperature: 77 F (25 C) - Dew Point: 73 F (23 C) - Relative Humidity: 88% - Pressure (altimeter): 29.77 in. Hg (1008 hPa) - ob: VTUD 111400Z 35001KT 8000 FEW030 25/23 Q1008 A2977 INFO R RWY30 - cycle: 14 --} -parseData :: Parser [WeatherInfo] -parseData = - do (st, ss) <- try (string "Station name not available" >> return ("??", "??")) <|> - (do st <- getAllBut "," - space - ss <- getAllBut "(" - return (st, ss) - ) - skipRestOfLine >> getAllBut "/" - (y,m,d,h) <- pTime - w <- pWind - v <- getAfterString "Visibility: " - sk <- getAfterString "Sky conditions: " - skipTillString "Temperature: " - (tC,tF) <- pTemp - skipTillString "Dew Point: " - (dC, dF) <- pTemp - skipTillString "Relative Humidity: " - rh <- pRh - skipTillString "Pressure (altimeter): " - p <- pPressure - manyTill skipRestOfLine eof - return [WI st ss y m d h w v sk tC tF dC dF rh p] - -defUrl :: String --- "http://weather.noaa.gov/pub/data/observations/metar/decoded/" -defUrl = "http://tgftp.nws.noaa.gov/data/observations/metar/decoded/" - -stationUrl :: String -> String -stationUrl station = defUrl ++ station ++ ".TXT" - -getData :: String -> IO String -#ifdef HTTP_CONDUIT -getData station = CE.catch (do - manager <- newManager tlsManagerSettings - request <- parseUrl $ stationUrl station - res <- httpLbs request manager - return $ B.unpack $ responseBody res - ) errHandler - where errHandler :: CE.SomeException -> IO String - errHandler _ = return "<Could not retrieve data>" -#else -getData station = do - let request = getRequest (stationUrl station) - CE.catch (simpleHTTP request >>= getResponseBody) errHandler - where errHandler :: CE.IOException -> IO String - errHandler _ = return "<Could not retrieve data>" -#endif - -formatWeather :: [WeatherInfo] -> Monitor String -formatWeather [WI st ss y m d h (WindInfo wc wa wm wk wkh wms) v sk tC tF dC dF r p] = - do cel <- showWithColors show tC - far <- showWithColors show tF - parseTemplate [st, ss, y, m, d, h, wc, wa, wm, wk, wkh, wms, v, sk, cel, far, show dC, show dF, show r , show p ] -formatWeather _ = getConfigValue naString - -runWeather :: [String] -> Monitor String -runWeather str = - do d <- io $ getData $ head str - i <- io $ runP parseData d - formatWeather i - -weatherReady :: [String] -> Monitor Bool -#ifdef HTTP_CONDUIT -weatherReady str = do - initRequest <- parseUrl $ stationUrl $ head str - let request = initRequest{method = methodHead} - io $ CE.catch ( do - manager <- newManager tlsManagerSettings - res <- httpLbs request manager - return $ checkResult $responseStatus res ) errHandler - where errHandler :: CE.SomeException -> IO Bool - errHandler _ = return False - checkResult status - | statusIsServerError status = False - | statusIsClientError status = False - | otherwise = True -#else -weatherReady str = do - let station = head str - request = headRequest (stationUrl station) - io $ CE.catch (simpleHTTP request >>= checkResult) errHandler - where errHandler :: CE.IOException -> IO Bool - errHandler _ = return False - checkResult result = - case result of - Left _ -> return False - Right response -> - case rspCode response of - -- Permission or network errors are failures; anything - -- else is recoverable. - (4, _, _) -> return False - (5, _, _) -> return False - (_, _, _) -> return True -#endif |