Class: AuthingRuby::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/authing_ruby/utils/utils.rb

Class Method Summary collapse

Class Method Details

.encrypt(plainText, publicKey) ⇒ Object

参照 JS SDK 的 encrypt 函数github.com/Authing/authing.js/blob/cf4757d09de3b44c3c3f4509ae8c8715c9f302a2/src/lib/utils.ts#L12 用途：传入一个明文，传入一个公钥用这个公钥对明文进行 RSA 加密，然后返回 base64 编码后的结果



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# File 'lib/authing_ruby/utils/utils.rb', line 12

def self.encrypt(plainText, publicKey)
  key = OpenSSL::PKey::RSA.new(publicKey)
  result = key.public_encrypt(plainText)
  return Base64.encode64(result)
end

.generateRandomString(length = 30) ⇒ Object

生成随机字符串，参照 JS SDK 里的 src/lib/utils.ts



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# File 'lib/authing_ruby/utils/utils.rb', line 19

def self.generateRandomString(length = 30)
  result = ""
  chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  for i in 0..length-1
    random_index = rand(0..chars.length-1)
    result += chars[random_index]
  end
  return result
end

.randomNumberString(length = 8) ⇒ Object

生成一个纯数字的随机字符串



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# File 'lib/authing_ruby/utils/utils.rb', line 30

def self.randomNumberString(length = 8)
  result = ""
  chars = '0123456789'
  for i in 0..length-1
    random_index = rand(0..chars.length-1)
    result += chars[random_index]
  end
  return result
end

.verifyIDTokenHS256(id_token, appSecret) ⇒ Object

参数 id_token 就是登录返回的 “token” 参数 appSecret 就是 Authing 里某个应用的 appSecret



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# File 'lib/authing_ruby/utils/utils.rb', line 53

def self.verifyIDTokenHS256(id_token, appSecret)
  # 如果解码出错，直接返回 false
  begin
    hmac_secret = appSecret
    decoded = JWT.decode id_token, hmac_secret, true, { algorithm: 'HS256' }
  rescue => error
    puts error.message
    return false
  end

  payload = decoded[0]
  header = decoded[1]

  # 从 payload 获得过期时间，然后判断是否过期
  exp = payload["exp"] # 过期时间
  current_timestamp = Time.now.to_i
  if current_timestamp < exp
    return true # 没过期
  else
    return false # 过期了
  end
end