GMail线程，IMAP和Ruby [英] GMail threading, IMAP and Ruby

问题描述

我正在使用Ruby IMAP库来获取GMail对话。 GMail线程对话的方式是通过Message-ID和In-Reply-To消息标题。例如：

I am using the Ruby IMAP library to get a GMail conversation. The way that GMail threads conversations is via "Message-ID" and "In-Reply-To" message headers. For example:

In-Reply-To: <[e-mail]>
Message-ID: <[e-mail]>

我无法弄清楚如何有效地获得答复信息。目前的方式：

I cannot figure out how to efficiently get the replied-to message. The current way:

target = <[e-mail]>
imap.search(["NOT", "DELETED"]).each do |msg_id|
  uid = imap.fetch(message_id, "ENVELOPE")[0].attr["ENVELOPE"].message_id
  if uid == target
    m = imap.fetch(msg_id, "RFC822")[0].attr["RFC822"]
  end
end

需要很长时间才能按顺序进行，但我无法弄清楚通过Message-ID标题进行搜索的正确咒语，而且我无法真正找到任何有关这是否可行的证据。

It takes a really long time to do it sequentially like that, but I can't figure out the correct incantation to search by the Message-ID header, and I can't really find any evidence as to whether this is possible or not.

推荐答案

显然，正确的方法是：

Apparently, the correct way to do this is:

imap.search ["HEADER", "MESSAGE-ID", target]

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