From 2dd3856389f9080e122f3a76ceda9c64146eb262 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Sat, 22 Feb 2025 21:30:29 +0100
Subject: tea-cleaner: Configure word lists

---
 tea-cleaner/TeaCleaner/Filter.hs | 36 ++++++++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 10 deletions(-)

(limited to 'tea-cleaner/TeaCleaner/Filter.hs')

diff --git a/tea-cleaner/TeaCleaner/Filter.hs b/tea-cleaner/TeaCleaner/Filter.hs
index 8448ff5..658606d 100644
--- a/tea-cleaner/TeaCleaner/Filter.hs
+++ b/tea-cleaner/TeaCleaner/Filter.hs
@@ -6,11 +6,11 @@ module TeaCleaner.Filter
     ) where
 
 import qualified Data.Text as Text
-import Data.Time (LocalTime(..), ZonedTime(..))
-import Data.Time.Calendar.OrdinalDate (fromOrdinalDate)
+import Data.Time (LocalTime(..), ZonedTime(..), UTCTime(..), addUTCTime)
 import qualified Data.Vector as Vector
 import TeaCleaner.Client (Activity(..), User(..), getActivities)
 import TeaCleaner.Configuration (Settings(..))
+import GHC.Records (HasField(..))
 
 data UserFilter
     = PassFilter
@@ -21,15 +21,31 @@ data UserFilter
 data FilterResult = FilterResult User UserFilter
     deriving (Show)
 
-filterByUserProperties :: User -> FilterResult
-filterByUserProperties user@User{ created, lastLogin, description, website }
-    | zonedDay created == zonedDay lastLogin
-    , zonedDay created > fromOrdinalDate 2024 1
-    , zonedDay created < fromOrdinalDate 2025 17
-    , not (Text.null description)
-    , not (Text.null website) = FilterResult user SuspiciousFilter
+filterByUserProperties :: Settings -> User -> FilterResult
+filterByUserProperties settings user@User{ created, lastLogin }
+    | noLoginSinceRegistration = FilterResult user FailedFilter
+    | containsSpamWords = FilterResult user FailedFilter
+    | percentEncodedWebsite = FilterResult user FailedFilter
+    | hasFullDescription = FilterResult user SuspiciousFilter
+    | unusualMailDomains = FilterResult user SuspiciousFilter
     | otherwise = FilterResult user PassFilter
   where
+    percentEncodedWebsite = Text.elem '%' $ getField @"website" user
+    unusualMailDomains =
+        let predicate = (`Text.isSuffixOf` getField @"email" user)
+         in any predicate (getField @"mailDomains" settings)
+    containsSpamWords =
+        let lowerCaseDescription = Text.toLower $ getField @"description" user
+            lowerCaseWebsite = Text.toLower $ getField @"website" user
+            predicate word = Text.isInfixOf word lowerCaseWebsite
+                || Text.isInfixOf word lowerCaseDescription
+         in any predicate (getField @"spamWords" settings)
+    hasFullDescription
+        = not (Text.null $ getField @"description" user)
+        && not (Text.null $ getField @"website" user)
+    noLoginSinceRegistration =
+        let monthAgo = utctDay $ addUTCTime (-2592000) $ getField @"now" settings
+         in zonedDay created < monthAgo && zonedDay created == zonedDay lastLogin
     zonedDay = localDay . zonedTimeToLocalTime
 
 filterByActivities :: Settings -> User -> IO FilterResult
@@ -39,5 +55,5 @@ filterByActivities settings user = getActivities settings user
     evalActivities activities
         | Just (Activity{ opType }, rest) <- Vector.uncons activities
         , Vector.null rest
-        , opType == "create_repo" = pure $ FilterResult user SuspiciousFilter
+        , opType == "create_repo" = pure $ FilterResult user FailedFilter
     evalActivities _ = pure $ FilterResult user PassFilter
-- 
cgit v1.2.3