antigate (empty) → 0.0.1
raw patch · 4 files changed
+379/−0 lines, 4 filesdep +basedep +bytestringdep +data-defaultsetup-changed
Dependencies added: base, bytestring, data-default, http-conduit, http-types, mime-types, random, safe, utf8-string
Files
- LICENSE +19/−0
- Setup.hs +2/−0
- Text/Recognition/Antigate.hs +324/−0
- antigate.cabal +34/−0
+ LICENSE view
@@ -0,0 +1,19 @@+Copyright (c) 2012 John Wiegley++Permission is hereby granted, free of charge, to any person obtaining a copy+of this software and associated documentation files (the "Software"), to deal+in the Software without restriction, including without limitation the rights+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell+copies of the Software, and to permit persons to whom the Software is+furnished to do so, subject to the following conditions:++The above copyright notice and this permission notice shall be included in+all copies or substantial portions of the Software.++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN+THE SOFTWARE.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ Text/Recognition/Antigate.hs view
@@ -0,0 +1,324 @@+{-# LANGUAGE PatternGuards, OverloadedStrings, ScopedTypeVariables, DeriveDataTypeable #-}+module Text.Recognition.Antigate+ (AntigateKey+ ,CaptchaID+ ,CaptchaConf(..)+ ,UploadResult(..)+ ,CheckResult(..)+ -- * High level+ ,SolveException(..)+ ,solveCaptcha+ ,solveCaptchaFromFile+ -- * Core functions+ ,uploadCaptcha+ ,checkCaptcha+ ,checkCaptchas+ ,reportBad+ ,getBalance+ -- * Miscellaneous+ ,parseUploadResult+ ,parseCheckResult+ ,parseCheckResults+ ,parseCheckResultNoOK+ ,renderUploadResult+ ,renderCheckResult+ ) where+import Control.Arrow (first)+import Control.Monad (void)+import Control.Applicative ((<$>))+import Control.Concurrent (threadDelay)+import Control.Exception (Exception, throwIO)+import qualified Codec.Binary.UTF8.Generic as UTF8 (fromString, toString)+import qualified Data.ByteString as S (concat)+import Data.ByteString.Lazy.Char8()+import Data.Default (Default(..))+import Data.List (stripPrefix, isPrefixOf, intercalate)+import Data.Monoid ((<>))+import Data.Maybe (catMaybes, fromMaybe, fromJust)+import Data.String (fromString)+import Data.Typeable (Typeable)+import Data.Word (Word)+import Network.Mime (defaultMimeLookup)+import Safe (readMay)+import Text.Printf (printf)+import qualified Data.ByteString.Lazy as L+import Network.HTTP.Types+import System.Random+import Network.HTTP.Conduit++httpRequest :: String -> IO L.ByteString+httpRequest u =+ responseBody <$> withManager+ (httpLbs (fromJust $ parseUrl u){responseTimeout = Just 15000000})++delimit :: Char -> String -> [String]+delimit _ [] = []+delimit a b =+ case break (==a) b of+ (c, []) -> [c]+ (c, (_:d)) -> c : delimit a d++-- from mime-mail+-- | Generates a random sequence of alphanumerics of the given length.+randomString :: RandomGen d => Int -> d -> (String, d)+randomString len =+ first (map toChar) . sequence' (replicate len (randomR (0, 61)))+ where+ sequence' [] g = ([], g)+ sequence' (f:fs) g =+ let (f', g') = f g+ (fs', g'') = sequence' fs g'+ in (f' : fs', g'')+ toChar i+ | i < 26 = toEnum $ i + fromEnum 'A'+ | i < 52 = toEnum $ i + fromEnum 'a' - 26+ | otherwise = toEnum $ i + fromEnum '0' - 52++randomBoundary :: IO L.ByteString+randomBoundary = do+ dashlen <- randomRIO (5, 30)+ charlen <- randomRIO (10, 30)+ fromString . (replicate dashlen '-' ++) <$> getStdRandom (randomString charlen)++type AntigateKey = String++type CaptchaID = Int++-- | See <http://antigate.com/panel.php?action=api>+data CaptchaConf = CaptchaConf+ {phrase :: Bool -- ^ * 'False' = default value (one word)+ --+ -- * 'True' = captcha has 2-4 words+ ,regsense :: Bool -- ^ * 'False' = default value (case is not important)+ --+ -- * 'True' = captcha is case sensitive+ ,numeric :: Maybe Bool -- ^ * 'Nothing' = default value+ --+ -- * 'Just' 'True' = captcha consists from numbers only+ --+ -- * 'Just' 'False' = captcha does not have numbers on it + ,calc :: Bool -- ^ * 'False' = default value+ --+ -- * 'True' = numbers on captcha must be summed+ ,min_len :: Word -- ^ * 0 = default value+ --+ -- * \>0 = minimum length of captcha text workers required to input + ,max_len :: Word -- ^ * 0 = default value (unlimited)+ --+ -- * \>0 = maximum length of captcha text workers required to input + ,is_russian :: Bool -- ^ * 'False' = default value+ --+ -- * 'True' = captcha goes to Russian-speaking worker + ,max_bid :: Maybe Double -- ^ 'Default' value is set on bids page. This parameter allows to control maximum bid without setting it on the bids page.+ }+ deriving (Show, Read)++data UploadResult = UPLOAD_OK CaptchaID -- ^ result is positive, your captcha is accepted for recognition and its ID follows. You may now attempt to retrieve captcha status with this ID.+ | ERROR_WRONG_USER_KEY -- ^ user authorization key is invalid (its length is not 32 bytes as it should be)+ | UPLOAD_ERROR_KEY_DOES_NOT_EXIST -- ^ you have set wrong user authorization key in request+ | ERROR_ZERO_BALANCE -- ^ account has zero or negative balance+ | ERROR_NO_SLOT_AVAILABLE -- ^ no idle captcha workers are available at the moment, please try a bit later or try increasing your bid+ | ERROR_ZERO_CAPTCHA_FILESIZE -- ^ the size of the captcha you are uploading or pointing to is zero+ | ERROR_TOO_BIG_CAPTCHA_FILESIZE -- ^ your captcha size is exceeding 100kb limit+ | ERROR_WRONG_FILE_EXTENSION -- ^ your captcha file has wrong extension, the only allowed extensions are gif,jpg,jpeg,png+ | ERROR_IMAGE_TYPE_NOT_SUPPORTED -- ^ Could not determine captcha file type, only allowed formats are JPG, GIF, PNG+ | ERROR_IP_NOT_ALLOWED -- ^ Request with current account key is not allowed from your IP. Please refer to IP list section+ | UPLOAD_ERROR_UNKNOWN String+ deriving (Show, Read, Eq, Ord)++data CheckResult = CHECK_OK String -- ^ the captcha is recognized, the guessed text follows+ | CAPCHA_NOT_READY -- ^ captcha is not recognized yet, repeat request withing 1-5 seconds+ | CHECK_ERROR_KEY_DOES_NOT_EXIST -- ^ you have set wrong user authorization key in request+ | ERROR_WRONG_ID_FORMAT -- ^ the captcha ID you are sending is non-numeric+ | CHECK_ERROR_UNKNOWN String+ deriving (Show, Read, Eq, Ord)++data Field = Part L.ByteString L.ByteString+ | File L.ByteString L.ByteString L.ByteString L.ByteString+ deriving (Show)++instance Default CaptchaConf where+ def = CaptchaConf {phrase = False+ ,regsense = False+ ,numeric = Nothing+ ,calc = False+ ,min_len = 0+ ,max_len = 0+ ,is_russian = False+ ,max_bid = Nothing+ }++renderField :: L.ByteString -> Field -> L.ByteString+renderField boundary (Part name body) =+ "--" <> boundary <> "\r\n"+ <> "Content-Disposition: form-data; name=\"" <> name <> "\""+ <> "\r\n"+ <> "\r\n" <> body <> "\r\n"+renderField boundary (File name filename contenttype body) =+ "--" <> boundary <> "\r\n"+ <> "Content-Disposition: form-data; name=\"" <> name <> "\"; filename=\"" <> filename <> "\""+ <> "\r\n" <> "Content-Type: " <> contenttype <> "\r\n"+ <> "\r\n" <> body <> "\r\n"++renderFields :: L.ByteString -> [Field] -> L.ByteString+renderFields boundary fields =+ L.concat (map (renderField boundary) fields)+ <> "--" <> boundary <> "--\r\n"++captchaConfFields :: CaptchaConf -> [Field]+captchaConfFields c = catMaybes+ [bool "phrase" phrase+ ,bool "regsense" regsense+ ,tri "numeric" numeric+ ,bool "calc" calc+ ,num "min_len" min_len+ ,num "max_len" max_len+ ,bool "is_russian" is_russian+ ,Part "max_bid" . fromString . printf "%f" <$> max_bid c+ ]+ where fromBool False = "0"+ fromBool True = "1"+ fromTri Nothing = "0"+ fromTri (Just True) = "1"+ fromTri (Just False) = "2"+ optField :: Eq a => L.ByteString -> (a -> L.ByteString) -> (CaptchaConf -> a) -> Maybe Field+ optField name conv rec+ | rec c /= rec def = Just $ Part name $ conv $ rec c+ | otherwise = Nothing+ bool name = optField name fromBool+ tri name = optField name fromTri+ num name = optField name (fromString . show)++-- | report bad captcha result+--+-- throws 'HttpException' on network errors.+reportBad :: AntigateKey -> CaptchaID -> IO ()+reportBad key captchaid =+ void $ httpRequest+ ("http://antigate.com/res.php?key="++ key ++"&action=reportbad&id=" ++ show captchaid)++-- | retrieve your current account balance+--+-- throws 'HttpException' on network errors.+getBalance :: AntigateKey -> IO Double+getBalance key =+ read . UTF8.toString <$> httpRequest+ ("http://antigate.com/res.php?key="++ key ++"&action=getbalance")++-- | Marshal "UploadResult" back to its text form+renderUploadResult :: UploadResult -> String+renderUploadResult (UPLOAD_OK i) = "OK|" ++ show i+renderUploadResult (UPLOAD_ERROR_UNKNOWN s) = s+renderUploadResult a = show a++-- | Parse antigate's upload response+parseUploadResult :: String -> UploadResult+parseUploadResult "ERROR_KEY_DOES_NOT_EXIST" = UPLOAD_ERROR_KEY_DOES_NOT_EXIST+parseUploadResult s+ | Just e <- readMay s = e+ | otherwise = fromMaybe (UPLOAD_ERROR_UNKNOWN s) $+ UPLOAD_OK <$> (readMay =<< stripPrefix "OK|" s)++-- | upload captcha for recognition+--+-- throws 'HttpException' on network errors.+uploadCaptcha :: AntigateKey -> CaptchaConf -> FilePath -> L.ByteString -> IO UploadResult+uploadCaptcha key sets filename image = do+ boundary <- randomBoundary+ let req = (fromJust $ parseUrl "http://antigate.com/in.php")+ {method = methodPost+ ,requestHeaders = [(hContentType, S.concat $ L.toChunks $ "multipart/form-data; boundary=" <> boundary)]+ ,requestBody = RequestBodyLBS $ renderFields boundary $+ [Part "method" "post"+ ,Part "key" (fromString key)+ ] +++ captchaConfFields sets +++ [File "file" (UTF8.fromString filename)+ (L.fromChunks [defaultMimeLookup (fromString filename)])+ image+ ]+ }+ parseUploadResult . UTF8.toString . responseBody <$> withManager (httpLbs req)++-- | Marshal "CheckResult" back to its text form +renderCheckResult :: CheckResult -> String+renderCheckResult (CHECK_OK s) = "OK|" ++ s+renderCheckResult (CHECK_ERROR_UNKNOWN s) = s+renderCheckResult a = show a++-- | Parse antigate's check response+parseCheckResult :: String -> CheckResult+parseCheckResult "ERROR_KEY_DOES_NOT_EXIST" = CHECK_ERROR_KEY_DOES_NOT_EXIST+parseCheckResult s+ | Just e <- readMay s = e+ | otherwise = fromMaybe (CHECK_ERROR_UNKNOWN s) $+ CHECK_OK <$> stripPrefix "OK|" s++-- | Parse antigate's multi-check response+parseCheckResultNoOK :: String -> CheckResult+parseCheckResultNoOK "ERROR_KEY_DOES_NOT_EXIST" = CHECK_ERROR_KEY_DOES_NOT_EXIST+parseCheckResultNoOK s+ | Just e <- readMay s = e+ | isPrefixOf "ERROR_" s = CHECK_ERROR_UNKNOWN s+ | otherwise = CHECK_OK s++-- | Parse antigate's multi-check response+parseCheckResults :: String -> [CheckResult]+parseCheckResults = map parseCheckResultNoOK . delimit '|'++-- | retrieve captcha status+--+-- throws 'HttpException' on network errors.+checkCaptcha :: AntigateKey -> CaptchaID -> IO CheckResult+checkCaptcha key captchaid = do+ parseCheckResult . UTF8.toString <$> httpRequest+ ("http://antigate.com/res.php?key="++ key ++"&action=get&id="++ show captchaid)++-- | retrieve multiple captcha status+--+-- throws 'HttpException' on network errors.+checkCaptchas :: AntigateKey -> [CaptchaID] -> IO [CheckResult]+checkCaptchas key captchaids = do+ parseCheckResults . UTF8.toString <$> httpRequest+ ("http://antigate.com/res.php?key="++ key ++"&action=get&ids="+++ intercalate "," (map show captchaids))++data SolveException = SolveExceptionUpload UploadResult+ | SolveExceptionCheck CaptchaID CheckResult+ deriving (Show, Typeable)++instance Exception SolveException++-- | High level function to solve captcha, blocks until answer is provided (about 2-10 seconds).+--+-- throws 'SolveException' or 'HttpException' when something goes wrong.+solveCaptcha :: Int -- ^ how much to sleep while waiting for available slot. Microseconds.+ -> Int -- ^ how much to sleep between captcha checks. Microseconds.+ -> AntigateKey+ -> CaptchaConf+ -> FilePath -- ^ image filename (antigate guesses filetype by file extension)+ -> L.ByteString -- ^ image contents+ -> IO (CaptchaID, String)+solveCaptcha sleepwait sleepcaptcha key conf filename image = goupload+ where goupload = do+ ur <- uploadCaptcha key conf filename image+ case ur of+ ERROR_NO_SLOT_AVAILABLE -> do+ threadDelay sleepwait+ goupload+ UPLOAD_OK i -> gocheck i+ a -> throwIO $ SolveExceptionUpload a+ gocheck captchaid = do+ threadDelay sleepcaptcha+ res <- checkCaptcha key captchaid+ case res of+ CHECK_OK answer ->+ return (captchaid, answer)+ CAPCHA_NOT_READY -> do+ threadDelay sleepcaptcha+ gocheck captchaid+ ex -> throwIO $ SolveExceptionCheck captchaid ex++-- | Same as 'solveCaptcha', but read contents from a file.+solveCaptchaFromFile :: Int -> Int -> AntigateKey -> CaptchaConf -> FilePath -> IO (CaptchaID, String)+solveCaptchaFromFile a b c d f = solveCaptcha a b c d f =<< L.readFile f
+ antigate.cabal view
@@ -0,0 +1,34 @@+name: antigate+version: 0.0.1+synopsis: Interface for antigate.com captcha recognition service.+description: Interface for antigate.com captcha recognition service.+category: Network APIs, CAPTCHA, Text Recognition+license: MIT+license-file: LICENSE+author: kudah <kudahkukarek@gmail.com>+maintainer: kudah <kudahkukarek@gmail.com>+cabal-version: >= 1.8+stability: experimental+build-type: Simple+tested-with: GHC == 7.4.1+homepage: https://github.com/exbb2/antigate++source-repository head+ type: git+ location: git://github.com/exbb2/antigate.git++library+ build-depends: base == 4.*+ ,random+ ,safe+ ,data-default+ ,bytestring+ ,utf8-string+ ,mime-types+ ,http-types+ ,http-conduit >= 1.6.0.1++ exposed-modules: Text.Recognition.Antigate++ ghc-options: -Wall+