重新组装以“消息/部分”编码的电子邮件消息使用Python

发布于 2024-09-07 17:42:00 字数 2310 浏览 2 评论 0原文

有没有办法在用 Content-Type: message/partial 编码的 Python 电子邮件中重新组装（即 RFC 1521）？

特别是，给定一组电子邮件，如何将它们合并回原创的？即

emails = [...] # a  list of `email`.

reassembled_email = merge_emails(emails)

merge_emails 有什么作用？有Python项目做过这个吗？

人们可以期待这样一封电子邮件：

From: [email protected]
To: [email protected]
Date: Wed, 30 Jun 2010 14:19:45 -0400
MIME-Version: 1.0
Content-Type: message/partial;
 id="TAN_U_R<0.0000749046c4>";
 number=1;
 total=2

From: [email protected]
Subject:
To: [email protected]
Date: Wed, 30 Jun 2010 14:19:45 -0400
MIME-Version: 1.0
Content-Type: multipart/mixed;
 boundary="DC_BOUND_PRE_<1277921980.0000744>"

This is a multi-part message in MIME format.
--DC_BOUND_PRE_<1277921980.0000c4>
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

This E-mail was sent from Your Printer

Some random text.

--DC_BOUND_PRE_<1277921980.0000744>
Content-Type: application/pdf; name="abcdef.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="abcdef.pdf"

JVBERi0xLjMKJZKgoooKNCAwIG9iago8PC9UeXBlL1hPYmplY3QKL1N1YnR5cGUvSW1hZ2UK
...

这是我最初的想法：

from email import parser 

def merge_emails(emails):
   # we can presume emails are ordered correctly and all the parts accounted for

   content = ''

   for eml im emails:
      content += emails.get_payload()

   return parser.Parser().parsestr(content)

这行得通吗（有那么简单吗）？您如何重新组合这封电子邮件？

作为在 Python 中执行此操作的替代方法，是否有命令行 Unix/Mac OS X 程序可以执行此操作？

感谢您的阅读以及您可能提供的任何信息。

亲切的问候，

布莱恩

原文

Is there a way to reassemble in Python email messages that are encoded with Content-Type: message/partial (i.e. section '7.3.2. The Message/Partial subtype' of RFC 1521)?

In particular, given a set of emails, how can one merge them back into an original? i.e.

emails = [...] # a  list of `email`.

reassembled_email = merge_emails(emails)

What does merge_emails have to do? Has any Python project done this?

One can expect an email like-so:

From: [email protected]
To: [email protected]
Date: Wed, 30 Jun 2010 14:19:45 -0400
MIME-Version: 1.0
Content-Type: message/partial;
 id="TAN_U_R<0.0000749046c4>";
 number=1;
 total=2

From: [email protected]
Subject:
To: [email protected]
Date: Wed, 30 Jun 2010 14:19:45 -0400
MIME-Version: 1.0
Content-Type: multipart/mixed;
 boundary="DC_BOUND_PRE_<1277921980.0000744>"

This is a multi-part message in MIME format.
--DC_BOUND_PRE_<1277921980.0000c4>
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

This E-mail was sent from Your Printer

Some random text.

--DC_BOUND_PRE_<1277921980.0000744>
Content-Type: application/pdf; name="abcdef.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="abcdef.pdf"

JVBERi0xLjMKJZKgoooKNCAwIG9iago8PC9UeXBlL1hPYmplY3QKL1N1YnR5cGUvSW1hZ2UK
...

Here's my initial thought:

from email import parser 

def merge_emails(emails):
   # we can presume emails are ordered correctly and all the parts accounted for

   content = ''

   for eml im emails:
      content += emails.get_payload()

   return parser.Parser().parsestr(content)

Will this work (is it that simple)? How can you one reassemble this email?

As an alternative to doing this in Python, is there a command-line Unix/Mac OS X program that will do it?

Thank you for reading and any information you may be able to provide.

Kind regards,

Brian

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