refactor(toolkit): sync latest password rules

packages/toolkit/core-kit/src/password-policy.test.ts

@@ -40,7 +40,7 @@ describe('PasswordPolicyChecker -> check()', () => {
       pwned: true,
       repetitionAndSequence: true,
       userInfo: true,
-      words: ['test', 'aaaa'],
+      words: ['aaaaaate', 'aaaaaaaa'],
     },
   });
 
@@ -49,9 +49,9 @@ describe('PasswordPolicyChecker -> check()', () => {
   });
 
   it('should reject with all failed checks', async () => {
-    expect(await checker.check('aaa', {})).toEqual([
+    expect(await checker.check('aaa😀', {})).toEqual([
       { code: 'password_rejected.too_short', interpolation: { min: 7 } },
-      { code: 'password_rejected.character_types', interpolation: { min: 2 } },
+      { code: 'password_rejected.unsupported_characters' },
       { code: 'password_rejected.restricted.repetition' },
     ]);
 
@@ -63,13 +63,13 @@ describe('PasswordPolicyChecker -> check()', () => {
       { code: 'password_rejected.restricted.user_info' },
     ]);
 
-    expect(await checker.check('aaaaaatest😀', {})).toEqual([
+    expect(await checker.check('aaaaaaaate', {})).toEqual([
       { code: 'password_rejected.too_long', interpolation: { max: 8 } },
-      { code: 'password_rejected.unsupported_characters' },
+      { code: 'password_rejected.character_types', interpolation: { min: 2 } },
       { code: 'password_rejected.restricted.repetition' },
       {
         code: 'password_rejected.restricted.words',
-        interpolation: { words: 'test\naaaa', count: 2 },
+        interpolation: { words: 'aaaaaate\naaaaaaaa', count: 2 },
       },
     ]);
   });
@@ -131,13 +131,16 @@ describe('PasswordPolicyChecker -> hasRepetition()', () => {
 
   it('should reject password with too many repeated characters', () => {
     expect(checker.hasRepetition('aaaa')).toBe(true);
-    expect(checker.hasRepetition('aL1!bbbbb')).toBe(true);
+    expect(checker.hasRepetition('aaa12')).toBe(true);
-    expect(checker.hasRepetition('aaaaaatest😀')).toBe(true);
+    expect(checker.hasRepetition('aaaaaa😀')).toBe(true);
   });
 
   it('should accept password with few repeated characters', () => {
+    expect(checker.hasRepetition('a')).toBe(false);
+    expect(checker.hasRepetition('aa')).toBe(false);
+    expect(checker.hasRepetition('aL!bbbbb')).toBe(false);
     expect(checker.hasRepetition('aL1!')).toBe(false);
-    expect(checker.hasRepetition('aL1!bbbb')).toBe(false);
+    expect(checker.hasRepetition('aL1!bbbbbbbbbbbb')).toBe(false);
   });
 });
 
@@ -151,22 +154,24 @@ describe('PasswordPolicyChecker -> hasUserInfo()', () => {
     expect(checker.hasUserInfo('test', { name: 'test2' })).toBe(false);
     expect(checker.hasUserInfo('FOO', { name: 'Foo bar' })).toBe(true);
     expect(checker.hasUserInfo('Foo', { name: 'bar fOo' })).toBe(true);
+    expect(checker.hasUserInfo('barFooBaz12', { name: 'bar   fOo   baz' })).toBe(true);
   });
 
   it('should reject password with username', () => {
-    expect(checker.hasUserInfo('123.456!test', { username: 'teST' })).toBe(true);
+    expect(checker.hasUserInfo('1!test', { username: 'teST' })).toBe(true);
-    expect(checker.hasUserInfo('test', { username: 'test2' })).toBe(false);
+    expect(checker.hasUserInfo('test123', { username: 'test2' })).toBe(false);
   });
 
   it('should reject password with email', () => {
-    expect(checker.hasUserInfo('teST', { email: 'test@foo.com' })).toBe(true);
+    expect(checker.hasUserInfo('teST1', { email: 'test@foo.com' })).toBe(true);
-    expect(checker.hasUserInfo('TEST', { email: 'test1@foo.com' })).toBe(false);
+    expect(checker.hasUserInfo('TEST2', { email: 'test1@foo.com' })).toBe(false);
     expect(checker.hasUserInfo('FOO', { email: 'test@foo.com' })).toBe(false);
-    expect(checker.hasUserInfo('Foo', { email: 'fOO@foo.com' })).toBe(true);
+    expect(checker.hasUserInfo('Foo!', { email: 'fOO@foo.com' })).toBe(true);
   });
 
   it('should reject password with phone number', () => {
-    expect(checker.hasUserInfo('teST1234567890.', { phoneNumber: '123456789' })).toBe(true);
+    expect(checker.hasUserInfo('ST123456789', { phoneNumber: '123456789' })).toBe(true);
+    expect(checker.hasUserInfo('teST1234567890.', { phoneNumber: '123456789' })).toBe(false);
     expect(checker.hasUserInfo('TEST12345678', { phoneNumber: '123456789' })).toBe(false);
   });
 });
@@ -186,12 +191,12 @@ describe('PasswordPolicyChecker -> hasWords()', () => {
   it('should reject password with blacklisted words (case insensitive)', () => {
     expect(checker.hasWords('test')).toEqual(['test']);
     expect(checker.hasWords('tEst2')).toEqual(['test', 'test2']);
-    expect(checker.hasWords('tEST TEst2 teSt3')).toEqual(['test', 'test2', 'test3']);
   });
 
   it('should accept password without blacklisted words', () => {
     expect(checker.hasWords('tes4')).toEqual([]);
     expect(checker.hasWords('tes4 est5 tes t')).toEqual([]);
+    expect(checker.hasWords('tEST TEst2 teSt3')).toEqual([]);
   });
 });
 
@@ -203,15 +208,16 @@ describe('PasswordPolicyChecker -> hasSequentialChars()', () => {
   });
 
   it('should reject password with too many sequential characters', () => {
-    expect(checker.hasSequentialChars('FE')).toBe(true);
     expect(checker.hasSequentialChars('1234')).toBe(true);
     expect(checker.hasSequentialChars('edcba')).toBe(true);
-    expect(checker.hasSequentialChars('aL1!BCDEFA')).toBe(true);
+    expect(checker.hasSequentialChars('BCDEDC')).toBe(true);
   });
 
   it('should accept password with few sequential characters', () => {
     expect(checker.hasSequentialChars('z')).toBe(false);
+    expect(checker.hasSequentialChars('FE')).toBe(false);
     expect(checker.hasSequentialChars('aL1!')).toBe(false);
+    expect(checker.hasSequentialChars('aL1!BCDEFA')).toBe(false);
     expect(checker.hasSequentialChars('aL1!bcdedcb1234321')).toBe(false);
   });
 });

packages/toolkit/core-kit/src/password-policy.ts

@@ -110,6 +110,20 @@ export type UserInfo = Partial<{
  */
 export class PasswordPolicyChecker {
   static symbols = Object.freeze('!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' as const);
+  /** The length threshold for checking repetition and sequence. */
+  static repetitionAndSequenceThreshold = 3 as const;
+  /**
+   * If the password contains more than such number of characters that are not
+   * in the restricted phrases, it will be accepted.
+   */
+  static restrictedPhrasesTolerance = 3 as const;
+
+  /** Get the length threshold for checking restricted phrases. */
+  protected static getRestrictedPhraseThreshold(password: string): number {
+    const { restrictedPhrasesTolerance } = PasswordPolicyChecker;
+
+    return Math.max(1, password.length - restrictedPhrasesTolerance);
+  }
 
   public readonly policy: PasswordPolicy;
 
@@ -269,14 +283,20 @@ export class PasswordPolicyChecker {
 
   /**
    * Check if the given password contains repetition characters that are more than
-   * 4 characters or equal to the password length.
+   * the threshold.
    *
    * @param password - Password to check.
    * @returns Whether the password contains repetition characters.
    */
   hasRepetition(password: string): boolean {
+    const { repetitionAndSequenceThreshold, getRestrictedPhraseThreshold } = PasswordPolicyChecker;
+
+    if (password.length < repetitionAndSequenceThreshold) {
+      return false;
+    }
+
     const matchedRepetition = password.match(
-      new RegExp(`(.)\\1{${Math.min(password.length - 1, 4)},}`, 'g')
+      new RegExp(`(.)\\1{${getRestrictedPhraseThreshold(password)},}`, 'g')
     );
 
     return Boolean(matchedRepetition);
@@ -289,29 +309,50 @@ export class PasswordPolicyChecker {
    * @param userInfo - User information to check.
    * @returns Whether the password contains user information.
    */
+  // eslint-disable-next-line complexity
   hasUserInfo(password: string, userInfo: UserInfo): boolean {
     const lowercasedPassword = password.toLowerCase();
     const { name, username, email, phoneNumber } = userInfo;
+    const threshold = PasswordPolicyChecker.getRestrictedPhraseThreshold(password);
+
+    if (name) {
+      const joined = name.replaceAll(/\s+/g, '');
+      if (joined.length >= threshold && lowercasedPassword.includes(joined.toLowerCase())) {
+        return true;
+      }
+
+      if (
+        name
+          .toLowerCase()
+          .split(' ')
+          .some((word) => word.length >= threshold && lowercasedPassword.includes(word))
+      ) {
+        return true;
+      }
+    }
 
     if (
-      name
+      username &&
-        ?.toLowerCase()
+      username.length >= threshold &&
-        .split(' ')
+      lowercasedPassword.includes(username.toLowerCase())
-        .some((word) => lowercasedPassword.includes(word))
     ) {
       return true;
     }
 
-    if (username && lowercasedPassword.includes(username.toLowerCase())) {
-      return true;
-    }
-
     const emailPrefix = email?.split('@')[0];
-    if (emailPrefix && lowercasedPassword.includes(emailPrefix.toLowerCase())) {
+    if (
+      emailPrefix &&
+      emailPrefix.length >= threshold &&
+      lowercasedPassword.includes(emailPrefix.toLowerCase())
+    ) {
       return true;
     }
 
-    if (phoneNumber && lowercasedPassword.includes(phoneNumber)) {
+    if (
+      phoneNumber &&
+      phoneNumber.length >= threshold &&
+      lowercasedPassword.includes(phoneNumber)
+    ) {
       return true;
     }
 
@@ -327,13 +368,14 @@ export class PasswordPolicyChecker {
   hasWords(password: string): string[] {
     const words = this.policy.rejects.words.map((word) => word.toLowerCase());
     const lowercasedPassword = password.toLowerCase();
+    const threshold = PasswordPolicyChecker.getRestrictedPhraseThreshold(password);
 
-    return words.filter((word) => lowercasedPassword.includes(word));
+    return words.filter((word) => word.length >= threshold && lowercasedPassword.includes(word));
   }
 
   /**
    * Check if the given password contains sequential characters, and the number of
-   * sequential characters is over 4 or equal to the password length when (1 < length < 5).
+   * sequential characters is over the threshold.
    *
    * @param password - Password to check.
    * @returns Whether the password contains sequential characters.
@@ -341,6 +383,7 @@ export class PasswordPolicyChecker {
    * @example
    * ```ts
    * hasSequentialChars('1'); // false
+   * hasSequentialChars('12'); // false
    * hasSequentialChars('12345'); // true
    * hasSequentialChars('123456@Bc.dcE'); // true
    * hasSequentialChars('123@Bc.dcE'); // false
@@ -349,6 +392,15 @@ export class PasswordPolicyChecker {
   // Disable the mutation rules because the algorithm is much easier to implement with
   /* eslint-disable @silverhand/fp/no-let, @silverhand/fp/no-mutation, @silverhand/fp/no-mutating-methods */
   hasSequentialChars(password: string): boolean {
+    const { repetitionAndSequenceThreshold, getRestrictedPhraseThreshold } = PasswordPolicyChecker;
+    if (password.length < repetitionAndSequenceThreshold) {
+      return false;
+    }
+
+    const threshold = Math.max(
+      getRestrictedPhraseThreshold(password),
+      repetitionAndSequenceThreshold
+    );
     let sequence: number[] = [];
 
     for (const char of password) {
@@ -370,7 +422,7 @@ export class PasswordPolicyChecker {
         sequence = [charCode];
       }
 
-      if (sequence.length >= 5 || sequence.length === password.length) {
+      if (sequence.length >= threshold) {
         return true;
       }
     }