Module: Wdt::Authentication

Included in:
Client
Defined in:
lib/wdt/authentication.rb

Constant Summary collapse

SEPARATOR1 =

对请求的参数进行签名

'-'
SEPARATOR2 = 
':'
SEPARATOR3 = 
';'

Instance Method Summary collapse

Instance Method Details

#get_signature(params) ⇒ Object 



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# File 'lib/wdt/authentication.rb', line 33

def get_signature(params)
  data = ""
  params.sort.each do |key, value|
    key = key.to_s
    value = value.to_s

    if data.size > 0
      data << SEPARATOR3
    end

    data << len_foo(key, 2)
    data << SEPARATOR1
    data << key
    data << SEPARATOR2
    data << len_foo(value, 4)
    data << SEPARATOR1
    data << value
  end

  Digest::MD5.hexdigest("#{data}#{appsecret}")
end

#sign(params) ⇒ Object 



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# File 'lib/wdt/authentication.rb', line 13

def sign(params)
  # 添加系统级参数
  params = params.merge(
    appkey: @appkey,
    sid: @sid,
    timestamp: Time.now.to_i
  )

  # 将 hash 的 key 全部转化为 string
  params = stringify_keys(params)

  # 去掉参数中的 sign 参数
  params.delete("sign")

  # 添加参数签名
  signature = get_signature(params)

  params.merge!("sign" => signature)
end

#stringify_keys(obj) ⇒ Object

把 hash 的 key 从 symbol 转化为 string params :b=>{:c=>2} return “b”=>{“c”=>2}



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# File 'lib/wdt/authentication.rb', line 58

def stringify_keys(obj)
  return obj.reduce({}) do |memo, (k, v)|
    memo.tap { |m| m[k.to_s] = stringify_keys(v) }
  end if obj.is_a? Hash
    
  return obj.reduce([]) do |memo, v| 
    memo << stringify_keys(v); memo
  end if obj.is_a? Array
  
  obj
end