Method: Wechat::Validation::Signature.create

Defined in:
lib/wechat/validation/signature.rb

.create(nonce, timestamp, token) ⇒ Object

验证服务器地址的有效性mp.weixin.qq.com/wiki/8/f9a0b8382e0b77d87b3bcc1ce6fbc104.html#.E7.AC.AC.E4.BA.8C.E6.AD.A5.EF.BC.9A.E9.AA.8C.E8.AF.81.E6.9C.8D.E5.8A.A1.E5.99.A8.E5.9C.B0.E5.9D.80.E7.9A.84.E6.9C.89.E6.95.88.E6.80.A7

开发者通过检验signature对请求进行校验（下面有校验方式）。若确认此次GET请求来自微信服务器，请原样返回echostr参数内容，则接入生效，成为开发者成功，否则接入失败。加密/校验流程如下：

  1. 将token、timestamp、nonce三个参数进行字典序排序

  2. 将三个参数字符串拼接成一个字符串进行sha1加密

  3. 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信



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# File 'lib/wechat/validation/signature.rb', line 28

def self.create(nonce, timestamp, token)

  assert_present! :nonce,     nonce
  assert_present! :timestamp, timestamp
  assert_present! :token,     token

  Digest::SHA1.hexdigest [ nonce.to_s, timestamp.to_s, token.to_s ].sort.join

end