procmail 在内容类型上给出 "no match"

procmail giving "no match" on content-type

我正在尝试让 procmail 解码 base64 编码的附件。首先,我遵循一个简单的食谱,可在此处找到:

http://www.linuxquestions.org/questions/linux-software-2/procmailrc-decode-data-from-base64-encoded-emails-trying-to-decode-with-uudeview-933670/

但是,procmail 似乎找不到匹配项:

procmail: [7459] Mon Aug 10 10:54:43 2015
procmail: Assigning "LOGFILE=/home/myself/procmail.log"
procmail: Opening "/home/myself/procmail.log"
procmail: Assigning "LOGABSTRACT=yes"
procmail: Assigning "LINEBUF=65535"
procmail: No match on "^Content-Type: *text/plain"
procmail: Locking "/home/myself/scratch/prc.out.lock"
procmail: Assigning "LASTFOLDER=/home/myself/scratch/prc.out"
procmail: Opening "/home/myself/scratch/prc.out"
procmail: Acquiring kernel-lock
procmail: Unlocking "/home/myself/scratch/prc.out.lock"
Subject: FMSG:219
Folder: /home/myself/scratch/prc.out                     8312
[168]%

我的~/.procmailrc 很简单:

SHELL=/bin/sh
PATH=/bin:/usr/bin/:/sbin:/usr/sbin:$PATH
MAILDIR=$HOME/scratch   # this is a symlink to a scratch disk
DEFAULT=$HOME/scratch/prc.out
VERBOSE=yes
LOGFILE=/home/myself/procmail.log
LOGABSTRACT=yes
LINEBUF=65535

:0
* ^Content-Type: *text/plain
{
        :0 fbw
        * ^Content-Transfer-Encoding: *base64
        | $HOME/mmencode -u -b

        :0 Afhw
        | formail -I "Content-Transfer-Encoding: 8bit"
}

这是邮件文件的开头:

Return-Path: <unknown>
Delivered-To: unknown
From: <user1>
To: ole <user2>
Date: Mon, 20 Jul 2015 14:46:49 +0200
Subject: FMSG:219
Message-ID:  <6959f239-gf41-4339-a526-a0337a17a9ba@test.local>
Accept-Language: en-US
Content-Language: en-US
Content-Type: multipart/mixed;
boundary="_002_6959f239a4d111111111111111111111111111111oletestl_"
MIME-Version: 1.0

--_002_6959f239a4d111111111111111111111111111111oletestl_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable


--_002_6959f239a4d111111111111111111111111111111oletestl_
Content-Type: application/x-ole-envelope; name="20150720"
Content-Description: ole envelope
Content-Disposition: attachment; filename="20150720"; size=5528;
creation-date="Mon, 20 Jul 2015 12:46:52 GMT";
modification-date="Mon, 20 Jul 2015 12:46:52 GMT"
Content-Transfer-Encoding: base64

SDRzSUFBQUFBQUFBQzYxWFdZK2pXTEordnBiOEgxTDEwZzhvaDgxZ3V6dXJSb2ZGZ0EzWWJHWVp6
UU83d1d4bU1kaS8vaDY3DQpNcnV5ZW5wNjVrbzNKU3NoNG9zNHNaOUFrUlQrOVJpM1hWWlh2Nzdn
THQzOUFsMTVsVm5vQmg4TS8vL0hIS3ZqblA0NzRQMkZtdjJ0NDlpSDYzb2h2NkhzamYvdC9IVUZS

...

--_002_6959f239a4d6959f239a4d111111111111111111111111111111oletestl_

如果我尝试在 "Content-Type: multipart/mixed" 上匹配,我实际上得到了匹配:

procmail: Match on "^Content-Type: multipart/mixed;"
procmail: No match on "^Content-Transfer-Encoding: *base64"

但接下来的就不行了...:(

类似于

的尝试
procmail: No match on "^Content-Type: application/x-ole-envelope"

我错过了什么?

谢谢

消息 header 中的正则表达式没有匹配项。如果你想在 body 中找到匹配项(包括但不限于 MIME body 部分 headers),请使用 B 标志;但是适当的 MIME 支持将比这复杂得多,并且几乎不可能仅在 Procmail 中完成。

您正在复制的配方非常专门用于标准化 single-part text/plain 消息,而不是多部分。

你的问题很笼统,所以我只能给出笼统的建议。也许将消息传送到类似 munpack 的内容,可能基于一些很可能在 Procmail 中表达的正则表达式标准;但对于任何更复杂的东西,也许可以通过管道连接到专门的 Python(或 Perl,或 Ruby,等等)脚本。

我的 procmailrc 正在运行

VERBOSE=on
LOGFILE=$HOME/.procmail.log/procmail.`date +%Y%m%d`.log
LOGABSTRACT=yes

:0Wc:mailparser.lock
| /usr/bin/python /home/qq/mailparser.py > mailparser.log

:0
* ^content-Type:
{
    # backup the complete mail first..
    # you can leave out this part if you don't want a backup of the complete mail
    :0c:
        $HOME/fetchmail/mail_backup

    :0fw
    | uudeview -i +a +o -p $HOME/fetchmail/attachments -

}

当我尝试

* ^Content-Type: *text/plain

我找不到匹配项。