67 lines
2.6 KiB
Haskell
67 lines
2.6 KiB
Haskell
{-# LANGUAGE CPP #-}
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module Data.HTTPSEverywhere.Rules.Internal (
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getRulesetsMatching,
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havingRulesThatTrigger,
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havingCookieRulesThatTrigger,
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setSecureFlag,
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#ifdef TEST
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hasTargetMatching,
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hasTriggeringRuleOn,
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hasExclusionMatching
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#endif
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) where
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import Prelude hiding (readFile, filter)
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import Control.Applicative ((<*>), (<$>))
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import Control.Lens ((&))
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import Control.Monad ((<=<), join)
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import Data.Bool (bool)
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import Data.Functor.Infix ((<$$>))
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import Data.List (find)
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import Data.Maybe (isJust)
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import qualified Data.HTTPSEverywhere.Rules.Raw as Raw (getRule, getRules)
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import Network.HTTP.Client (Cookie(..))
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import Network.URI (URI)
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import Pipes (Pipe, Producer, for, each, await, yield, lift, (>->))
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import Pipes.Prelude (filter)
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import Data.HTTPSEverywhere.Rules.Internal.Parser (parseRuleSets)
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import Data.HTTPSEverywhere.Rules.Internal.Types (RuleSet(..), Target(..), Exclusion(..), Rule(..), CookieRule(..))
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getRulesets :: Producer RuleSet IO ()
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getRulesets = lift Raw.getRules
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>>= flip (for . each) (flip (for . each) yield <=< lift . (parseRuleSets <$$> Raw.getRule))
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getRulesetsMatching :: URI -> Producer RuleSet IO ()
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getRulesetsMatching url = getRulesets
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>-> filter (flip hasTargetMatching url)
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>-> filter (not . flip hasExclusionMatching url)
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havingRulesThatTrigger :: URI -> Pipe RuleSet (Maybe URI) IO ()
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havingRulesThatTrigger url = flip hasTriggeringRuleOn url <$> await
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>>= maybe (havingRulesThatTrigger url) (yield . Just)
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havingCookieRulesThatTrigger :: Cookie -> Pipe RuleSet Bool IO ()
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havingCookieRulesThatTrigger cookie = flip hasTriggeringCookieRuleOn cookie <$> await
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>>= bool (havingCookieRulesThatTrigger cookie) (yield True)
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hasTargetMatching :: RuleSet -> URI -> Bool
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hasTargetMatching ruleset url = getTargets ruleset <*> [url] & or
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where getTargets = getTarget <$$> ruleSetTargets
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hasExclusionMatching :: RuleSet -> URI -> Bool
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hasExclusionMatching ruleset url = getExclusions ruleset <*> [url] & or
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where getExclusions = getExclusion <$$> ruleSetExclusions
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hasTriggeringRuleOn :: RuleSet -> URI -> Maybe URI -- Nothing ~ False
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hasTriggeringRuleOn ruleset url = getRules ruleset <*> [url] & find isJust & join
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where getRules = getRule <$$> ruleSetRules
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hasTriggeringCookieRuleOn :: RuleSet -> Cookie -> Bool
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hasTriggeringCookieRuleOn ruleset cookie = getCookieRules ruleset <*> [cookie] & or
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where getCookieRules = getCookieRule <$$> ruleSetCookieRules
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setSecureFlag :: Cookie -> Cookie
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setSecureFlag cookie = cookie { cookie_secure_only = True }
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