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| #!/usr/bin/env stack
{- stack
--resolver lts-12.0
--install-ghc
script
--ghc-options -Werror
--ghc-options -Wall
--package bytestring
--package containers
--package http-client
--package http-client-tls
--package tagsoup
--
-}
--------------------------------------------------------------------------------
--
-- (c) 2019 SPISE MISU ApS, opensource.org/licenses/LGPL-3.0
--
--------------------------------------------------------------------------------
{-# LANGUAGE OverloadedStrings #-}
--------------------------------------------------------------------------------
module Main (main) where
--------------------------------------------------------------------------------
import Control.Arrow
( second
)
import qualified Data.ByteString.Lazy.Char8 as L8
import Data.List
( sortOn
)
import qualified Data.Map as Dict
import Data.Maybe
( catMaybes
)
import Data.String
( IsString
)
import Network.HTTP.Client
( Manager
, httpLbs
, newManager
, parseRequest
, requestHeaders
, responseBody
)
import Network.HTTP.Client.TLS
( tlsManagerSettings
)
import Text.HTML.TagSoup
( Tag (TagOpen)
, parseTags
, (~/=)
)
--------------------------------------------------------------------------------
-- HTTP
headers
:: ( IsString a, IsString b )
=> [ (a, b) ]
headers =
[ ( "Host"
, "saveyourinternet.eu"
)
, ( "User-Agent"
, "Links (2.14; Linux x86_64; text)"
)
]
get :: Manager -> String -> IO L8.ByteString
get manager url =
do
req <- parseRequest url
res <- httpLbs req { requestHeaders = headers } manager
return $ responseBody res
--------------------------------------------------------------------------------
-- PARSE
data MEP
= Pledged
| Against
| Neutral
| For
deriving (Eq, Ord, Show)
parse :: L8.ByteString -> [ MEP ]
parse bs =
concat $ catMaybes $ map f $ rows
where
tags = parseTags bs
rows =
takeWhile (~/= ("</tbody>" :: String)) $
drop 1 $
dropWhile (~/= ("<tbody>" :: String)) tags
f ( TagOpen "tr" xs) = Just $ catMaybes $ map (position . snd) xs
f __________________ = Nothing
position x =
case x of
"tshowcase-mepspledged" -> Just Pledged
"tshowcase-mepsagainst" -> Just Against
"tshowcase-mepsneutral" -> Just Neutral
"tshowcase-mepsfor" -> Just For
_______________________ -> Nothing
--------------------------------------------------------------------------------
-- MISC
data EU
= Austria
| Belgium
| Bulgaria
| Croatia
| Cyprus
| CzechRepublic
| Denmark
| Estonia
| Finland
| France
| Germany
| Greece
| Hungary
| Ireland
| Italy
| Latvia
| Lithuania
| Luxembourg
| Malta
| Netherlands
| Slovenia
| Spain
| Poland
| Portugal
| Romania
| Slovakia
| Sweden
| UnitedKingdom
| Total
deriving (Eq, Ord, Show)
ccTLD :: EU -> String
ccTLD Austria = "at"
ccTLD Belgium = "be"
ccTLD Bulgaria = "bg"
ccTLD Croatia = "hr"
ccTLD Cyprus = "cy"
ccTLD CzechRepublic = "cz"
ccTLD Denmark = "dk"
ccTLD Estonia = "ee"
ccTLD Finland = "fi"
ccTLD France = "fr"
ccTLD Germany = "de"
ccTLD Greece = "gr"
ccTLD Hungary = "hu"
ccTLD Ireland = "ie"
ccTLD Italy = "it"
ccTLD Latvia = "lv"
ccTLD Lithuania = "lt"
ccTLD Luxembourg = "lu"
ccTLD Malta = "mt"
ccTLD Netherlands = "nl"
ccTLD Poland = "pl"
ccTLD Portugal = "pt"
ccTLD Romania = "ro"
ccTLD Slovakia = "sk"
ccTLD Slovenia = "si"
ccTLD Spain = "es"
ccTLD Sweden = "se"
ccTLD UnitedKingdom = "uk"
ccTLD Total = "--"
base :: String
base =
"https://saveyourinternet.eu/"
urls :: [ EU ] -> [ String ]
urls =
map (base ++) . map ccTLD
groupBy
:: Ord k
=> (a -> k)
-> [a]
-> [(k,[a])]
groupBy f =
-- https://hoogle.haskell.org/?hoogle=Ord k => (a -> k) -> [a] -> [(k, [a])]
Dict.toAscList . Dict.fromListWith (++) . map (\a -> (f a, [a]))
--------------------------------------------------------------------------------
main :: IO ()
main =
do
manager <- newManager tlsManagerSettings
responses <- mapM (get manager) $ urls $ cts
let meps = map parse responses
putStrLn $ "# EU MEPs with regard of Article 13 (aka `meme ban`):"
putStrLn $ ""
putStrLn $ replicate len '-'
putStrLn $ "Country | ccTLD "
++ " | Pledged | Against | Neutral | For | Total "
++ " | Pledged % | Against % | Neutral % | For % | Total % |"
putStrLn $ replicate len '-'
mapM_ (putStrLn . ppd)
$ sortOn snd
$ zip cts
$ aux
$ meps
putStrLn $ replicate len '-'
mapM_ (putStrLn . ppd)
$ [ (Total, concat $ aux $ meps) ]
putStrLn $ replicate len '-'
putStrLn $ ""
putStrLn $ "Source: " ++ base ++ " and https://pledge2019.eu/"
where
len = 144
ppd (c,ps) =
cn ++ (rep $ (13 -) $ length cn) ++ " | " ++
cc ++ (rep 04 ) ++ " | " ++
(pad $ (09 -) $ length mp) ++ mp ++ " | " ++
(pad $ (09 -) $ length ma) ++ ma ++ " | " ++
(pad $ (09 -) $ length mn) ++ mn ++ " | " ++
(pad $ (09 -) $ length mf) ++ mf ++ " | " ++
(pad $ (09 -) $ length mt) ++ mt ++ " | " ++
(pad $ (09 -) $ length pp) ++ pp ++ " | " ++
(pad $ (09 -) $ length pa) ++ pa ++ " | " ++
(pad $ (09 -) $ length pn) ++ pn ++ " | " ++
(pad $ (09 -) $ length pf) ++ pf ++ " | " ++
(pad $ (09 -) $ length pt) ++ pt ++ " | "
where
cn = show c
cc = ccTLD c
p = sum $ snd <$> filter ((== Pledged) . fst) ps
a = sum $ snd <$> filter ((== Against) . fst) ps
n = sum $ snd <$> filter ((== Neutral) . fst) ps
f = sum $ snd <$> filter ((== For) . fst) ps
t = p + a + n + f
mp = show p
ma = show a
mn = show n
mf = show f
mt = show t
t' = fromIntegral t
p' = (/ t') $ (* 100.0) $ fromIntegral p
a' = (/ t') $ (* 100.0) $ fromIntegral a
n' = (/ t') $ (* 100.0) $ fromIntegral n
f' = (/ t') $ (* 100.0) $ fromIntegral f
pp = show $ dec p' 1
pa = show $ dec a' 1
pn = show $ dec n' 1
pf = show $ dec f' 1
pt = "100.0"
dec :: Double -> Int -> Double
dec x n = y / z
where
y = fromIntegral $ ((round $ x * z) :: Integer)
z = 10 ^ n
rep = (flip replicate) ' '
pad = (flip replicate) ' '
aux = map (map (second length)) . map (groupBy id)
cts =
[ Austria
, Belgium
, Bulgaria
, Croatia
, Cyprus
, CzechRepublic
, Denmark
, Estonia
, Finland
, France
, Germany
, Greece
, Hungary
, Ireland
, Italy
, Latvia
, Lithuania
, Luxembourg
, Malta
, Netherlands
, Slovenia
, Spain
, Poland
, Portugal
, Romania
, Slovakia
, Sweden
, UnitedKingdom
]
|
