添加新建虚拟机/重装系统 预设SSH密码以及KEY Auth功能

frontend/src/utils/sshAuth.ts

@@ -0,0 +1,67 @@
+export type SSHAuthMode = 'auto_password' | 'password' | 'key'
+export type ReinstallSSHAuthMode = SSHAuthMode | 'keep'
+
+const supportedKeyTypes = new Set([
+  'ssh-ed25519',
+  'ssh-rsa',
+  'ecdsa-sha2-nistp256',
+  'ecdsa-sha2-nistp384',
+  'ecdsa-sha2-nistp521',
+  'sk-ssh-ed25519@openssh.com',
+  'sk-ecdsa-sha2-nistp256@openssh.com',
+])
+
+export function generateSSHPassword() {
+  const letters = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+  const digits = '23456789'
+  const symbols = '!@#$%*-_+='
+  const all = letters + digits + symbols
+  const pick = (chars: string) => chars[secureRandomInt(chars.length)]
+  let password = pick(letters) + pick(digits)
+  while (password.length < 16) password += pick(all)
+  return secureShuffle(password.split('')).join('')
+}
+
+export function sshPasswordError(password: string) {
+  if (password.length < 8 || password.length > 64) return '密码长度必须为 8-64 位'
+  if (/\s/.test(password)) return '密码不能包含空白字符'
+  if (!/[A-Za-z]/.test(password)) return '密码至少需要包含字母'
+  if (!/\d/.test(password)) return '密码至少需要包含数字'
+  return ''
+}
+
+export function sshPublicKeyError(publicKey: string) {
+  const key = publicKey.trim()
+  if (!key) return '请填写 SSH 公钥'
+  if (key.length > 8192) return 'SSH 公钥长度不能超过 8192 字符'
+  if (/[\r\n]/.test(key)) return 'SSH 公钥只能填写一行'
+  const parts = key.split(/\s+/)
+  if (parts.length < 2 || !supportedKeyTypes.has(parts[0])) return 'SSH 公钥格式不正确'
+  return ''
+}
+
+function secureRandomInt(maxExclusive: number) {
+  if (!Number.isSafeInteger(maxExclusive) || maxExclusive <= 0) {
+    throw new Error('invalid random range')
+  }
+  const values = new Uint32Array(1)
+  const maxUint32 = 0x100000000
+  const limit = Math.floor(maxUint32 / maxExclusive) * maxExclusive
+  let value = 0
+  do {
+    crypto.getRandomValues(values)
+    value = values[0]
+  } while (value >= limit)
+  return value % maxExclusive
+}
+
+function secureShuffle<T>(items: T[]) {
+  const next = [...items]
+  for (let i = next.length - 1; i > 0; i--) {
+    const j = secureRandomInt(i + 1)
+    const value = next[i]
+    next[i] = next[j]
+    next[j] = value
+  }
+  return next
+}