add password wordlist check to password validator

src/main/java/PasswordValidator.java

@@ -14,6 +14,7 @@ public class PasswordValidator {
     boolean requireDigit = true;
     boolean requireSpecialChar = true;
     boolean checkPwned = true;
+    boolean checkWordlist = false;
 
     private final Pattern uppercasePattern = Pattern.compile("^(?=.*[A-Z]).+$");
     private final Pattern lowercasePattern = Pattern.compile("^(?=.*[a-z]).+$");
@@ -32,6 +33,8 @@ public class PasswordValidator {
             return false;
         } else if (requireSpecialChar && !specialCharPattern.matcher(password).matches()) {
             return false;
+        } else if (checkWordlist && isInWordlist(password)) {
+            return false;
         } else if (checkPwned && isPwned(password)) {
             return false;
         }
@@ -86,6 +89,14 @@ public class PasswordValidator {
         this.checkPwned = checkPwned;
     }
 
+    public boolean isCheckWordlist() {
+        return checkWordlist;
+    }
+
+    public void setCheckWordlist(boolean checkWordlist) {
+        this.checkWordlist = checkWordlist;
+    }
+
     public static String getSHA1Hash(String input) {
         if (input.length() > 0) {
             try {

src/test/java/PasswordValidatorTest.java

@@ -74,6 +74,16 @@ class PasswordValidatorTest {
         assertFalse(passwordValidator.validate("8"));
         assertFalse(passwordValidator.validate("asdf12"));
         assertTrue(passwordValidator.validate("=phan0johB4aisae6Mie0jeip9Saejahc0iuvuth7ahv9uoni6o*_.+"));
+
+        // test password wordlist check
+        passwordValidator.setRequireUppercase(true);
+        passwordValidator.setRequireLowercase(true);
+        passwordValidator.setRequireDigit(true);
+        passwordValidator.setCheckPwned(true);
+        passwordValidator.setCheckWordlist(true);
+        assertFalse(passwordValidator.validate("8"));
+        assertFalse(passwordValidator.validate("_Sonnenblume123"));
+        assertTrue(passwordValidator.validate("=phan0johB4aisae6Mie0jeip9Saejahc0iuvuth7ahv9uoni6o*_.+"));
     }
 
     @Test