release: PicHost v1.0.0

Multi-user image hosting with RBAC, upload preferences, and admin settings.

app/utils/password-strength.ts

@@ -0,0 +1,39 @@
+export const PASSWORD_MIN_LENGTH = 8
+
+export interface PasswordCriteria {
+  minLength: boolean
+  mixedCase: boolean
+  hasNumber: boolean
+  hasSpecial: boolean
+}
+
+export type PasswordStrengthLabel = '弱' | '中' | '强'
+
+export function analyzePassword(password: string): {
+  criteria: PasswordCriteria
+  score: number
+  label: PasswordStrengthLabel
+  isValid: boolean
+} {
+  const criteria: PasswordCriteria = {
+    minLength: password.length >= PASSWORD_MIN_LENGTH,
+    mixedCase: /[a-z]/.test(password) && /[A-Z]/.test(password),
+    hasNumber: /\d/.test(password),
+    hasSpecial: /[^a-zA-Z0-9]/.test(password)
+  }
+
+  const score = Object.values(criteria).filter(Boolean).length
+  const label: PasswordStrengthLabel
+    = score <= 1 ? '弱' : score <= 3 ? '中' : '强'
+
+  return {
+    criteria,
+    score,
+    label,
+    isValid: criteria.minLength
+  }
+}
+
+export function isPasswordValid(password: string): boolean {
+  return analyzePassword(password).isValid
+}