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-- IRC art (spam)bot
{-
Copyright 2023 "Laura Aléanor"
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-}
import Data.Bits
import qualified Data.ByteString as S
import qualified Data.ByteString.Char8 as S.Char8
import qualified Data.ByteString.Internal as S.Internal
import Data.List
import Data.Word
import System.Directory
import System.Environment
import System.Exit
import System.IO
import Text.Printf
type BitMap = [Word8]
type MircString = String
type PpmBmp = [Word8]
type IrcChannel = String
data Image = Image {
imgBmp :: BitMap,
imgPitch :: Int,
imgHeight :: Int
}
ctrlC = [toEnum 03] :: String
ctrlO = [toEnum 15] :: String
ctrlV = [toEnum 22] :: String
-- https://www.mirc.com/colors.html
w24ToMirc :: BitMap -> MircString
w24ToMirc word
-- White
| (word!!0 > 210) && (word!!1 > 210) && (word!!2 > 210)
= "0"
-- Black
| (word!!0 == 0) && (word!!1 == 0) && (word!!2 == 0)
= "1"
-- Light red
| (word!!0 > 127) && (word!!1 == 0) && (word!!2 == 0)
= "4"
-- Light green
| (word!!0 == 0) && (word!!1 > 147) && (word!!2 == 0)
= "9"
-- Light blue
| (word!!0 == 0) && (word!!1 == 0) && (word!!2 > 127)
= "12"
-- Red (aka brown)
| (word!!0 <= 127) && (word!!1 == 0) && (word!!2 == 0)
= "5"
-- Green
| (word!!0 == 0) && (word!!1 <= 147) && (word!!2 == 0)
= "3"
-- Blue
| (word!!0 == 0) && (word!!1 == 0) && (word!!2 <= 127)
= "2"
-- Yellow
| (word!!0 > 252) && (word!!1 > 127) && (word!!2 == 0)
= "8"
-- Orange
| (word!!0 <= 252) && (word!!1 <= 127) && (word!!2 == 0)
= "7"
-- Pink
| (word!!0 > 156) && (word!!1 == 0) && (word!!2 > 156)
= "13"
-- Purple
| (word!!0 <= 156) && (word!!1 == 0) && (word!!2 <= 156)
= "6"
-- Light cyan
| (word!!0 == 0) && (word!!1 > 147) && (word!!2 > 147)
= "11"
-- Cyan
| (word!!0 == 0) && (word!!1 <= 147) && (word!!2 <= 147)
= "10"
-- Light grey
| (word!!0 > 127) && (word!!1 > 127) && (word!!2 > 127)
= "15"
-- Grey
| otherwise = "14"
lineToMirc :: BitMap -> MircString
lineToMirc [] = []
lineToMirc line = ctrlC ++ w24ToMirc (take 3 line) ++ ctrlV ++ " " ++ ctrlO
++ lineToMirc (drop 3 line)
bmpToMirc :: Int -> Int -> BitMap -> MircString
bmpToMirc _ 0 _ = []
bmpToMirc pitch height bmp =lineToMirc (take pitch bmp) ++ "\n"
++ bmpToMirc pitch (height-1) (drop pitch bmp)
w8Split :: Word8 -> [Word8] -> [[Word8]]
w8Split c = map S.unpack . S.split c . S.pack
w8ToString :: [Word8] -> String
w8ToString = S.Char8.unpack . S.pack
ppmToImage :: PpmBmp -> Image
ppmToImage ppm = Image
(intercalate [S.Internal.c2w '\n'] $ drop 3
(w8Split (S.Internal.c2w '\n') ppm))
((read (w8ToString
((w8Split (S.Internal.c2w ' ') ((w8Split
(S.Internal.c2w '\n') ppm) !! 1)) !! 0)))*3)
(read ( w8ToString
((w8Split (S.Internal.c2w ' ') ((w8Split
(S.Internal.c2w '\n') ppm) !! 1)) !! 1)))
ircConnect :: String -> MircString
ircConnect credentials = printf "NICK miaowe\r\n\
\USER nya 0 * :mew mew\r\n\
\PRIVMSG NickServ :IDENTIFY %s\r\n" credentials
waitForMessage :: (String -> Bool) -> IO String
waitForMessage p = getLine >>= \l -> if p l
then return l
else
(if (words l)!!0 == "PING"
then
putStr
("PONG " ++ ((words l)!!1) ++ "\r\n")
>> hFlush stdout
else return ())
>> waitForMessage p
waitForCloak :: IO String
waitForCloak = waitForMessage (\l -> (words l)!!1 == "396")
waitForCommand :: IO String
waitForCommand = waitForMessage (\l -> if ((length (words l)) >= 4)
then ((words l)!!3 == ":miaowe:")
else False)
joinChannel :: String -> IO ()
joinChannel c = putStr (printf "JOIN %s\r\n" c)
sendToChannel :: IrcChannel -> MircString -> IO ()
sendToChannel c s = (putStr $ concat $ map (\l -> printf "PRIVMSG %s :%s\r\n" c l)
(lines s)) >> hFlush stdout
sendFile :: IrcChannel -> FilePath -> IO ()
sendFile channel path = S.readFile path
>>= sendToChannel channel .
(\img ->bmpToMirc
(imgPitch img)
(imgHeight img)
(imgBmp img)) .
ppmToImage .
S.unpack .
S.Char8.pack .
intercalate "\n" .
filter (\l->not (head l == '#')) .
lines .
S.Char8.unpack
trySendFile :: IrcChannel -> FilePath -> IO ()
trySendFile channel path = (doesFileExist (path)
>>= (\b ->
if b
then
sendFile channel (path)
else
sendToChannel channel "No such file."
>> hFlush stdout))
processCommand :: IrcChannel -> MircString -> IO ()
processCommand channel command | length (words command) < 5 = sendToChannel channel
"You need to specify a command."
| (words command)!!4 == "Quit" = exitSuccess
| otherwise = (if isInfixOf "/" ((words command)!!4)
then
sendToChannel channel
"Only PWD please."
else
trySendFile channel
((words command)!!4))
mainLoop :: IrcChannel -> IO ()
mainLoop channel = waitForCommand
>>= \line ->
processCommand channel line
>> mainLoop channel
main :: IO ()
main =
openFile "conf" ReadMode
>>= (\handle ->
hGetLine handle
>>= putStr . ircConnect
>> hClose handle)
>> hFlush stdout
>> waitForCloak
>> hFlush stdout
>> getArgs
>>= \args ->
joinChannel (args!!0)
>> hFlush stdout
>> mainLoop (args!!0)
|
