在 Ruby 中生成 GUID [英] Generating GUIDs in Ruby

问题描述

我有一个很容易用 GUID 解决的问题.

I have a problem that is really easily solved with GUIDs.

特别是，对于密码重置工作流程，我想将 GUID 令牌发送到用户的电子邮件，并让他们使用该令牌重置密码.由于 GUID 是唯一的，因此非常安全，并且可以省去我通过电子邮件向他人发送密码的风险.

In particular, for a password reset workflow, I would like to send a GUID token to a user's email and have them reset their password using the token. Since GUIDs are unique, this is pretty secure and saves me emailing people passwords, which is risky.

我注意到有一个 uuid gem @ ruby​​forge 但它看起来很旧，它会向文件系统.

I noticed there is one uuid gem @ rubyforge but it looks quite old, and it writes stuff to the file system.

有谁知道其他可以创建全局唯一标识符的 gem 吗?

Does anyone know of any other gems that can create a globally unique identifier?

我知道我可以回到:

(0..16).to_a.map{ |a| rand(16).to_s(16) }.join 

但它看起来并不是一个合适的 GUID ...

But it does not really seem like a proper GUID ...

推荐答案

从 Ruby 1.9 开始，uuid 生成是内置的.使用 SecureRandom.uuid 函数.

As of Ruby 1.9, uuid generation is built-in. Use the SecureRandom.uuid function.

例如:

require 'securerandom'
SecureRandom.uuid # => "96b0a57c-d9ae-453f-b56f-3b154eb10cda"

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