解析MIME消息 [英] Parse MIME messages

问题描述

对于我的新项目，有电子邮件module.i需要显示web上的所有电子邮件信息。当我打电话给服务器我得到base64编码的MIME数据。在应用base64解码技术后，可以得到mime数据如下：

/ ********************* Mime数据启动********************************* /

  From [e-mail] Tue Jun 23 12:01:02 2009 
日期：星期二，2009年6月23日12:01:02 +0530 
来自：Prashant R Naik< [e-mail]> 
至：[e-mail] 
主题：这是一个测试邮件
 Message-ID：< [e-mail]> 
回复：Prashant R Naik< [e-mail]> 
 MIME版本：1.0 
内容类型：multipart / mixed; border =ReaqsoxgOBHFXBhH
内容处理：inline 
用户代理：Mutt / 1.5.18（2008-05-17）
状态：RO 
内容长度：1912 
行：52 
 
 
 --ReaqsoxgOBHFXBhH 
内容类型：text / plain; charset = us-ascii 
内容处理：inline 
 
测试邮件。 
由prashant发起
 
问候，
  -  
 Prashant R Naik 
主要技术专家| Symbian& Web2.0 
 Geodesic Limited | www.geodesic.com 
电话：+ 91-80-66551000 
 
 --ReaqsoxgOBHFXBhH 
内容类型：image / gif 
内容处理：附件;文件名= trash.gif 
内容传输编码：的base64 
 
 R0lGODlhEAAQANUoADJ8wTqU2DmR1TqV2DN9wTSBxTWFyTaGyTJ9wTWGyTaKzjmS1TOAxTuV 
 2DaFyTN8wDiN0jiO0jSAxTeKzjqS1DN8wTqR1TWFyjB4vTOBxTmO0TmS1DaKzTeJzTqV1zSA 
 xDJ8wDqS1TeKzTF4vDF4vTiO0f /// zuX2gAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 
 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAACgALAAA 
 AAAQABAAAAaDQNRpSCwWhcakcsk8mZ5Qpik5pUKvT2W1uDVWp + BiYNAImAZmz / lcDoQEFoFp 
 QTFtTPKFQLCAREolJiURJhCCJhqAJRMiIhwmjSYdJgqUjQoODgkJJgecBp0mBgYXBx8ZBQxY 
 UAUSDAUACLEPDwgEAAAEIBUEtygkIyMkwMMYw8EjKEEAOw == 
 
 --ReaqsoxgOBHFXBhH 
内容类型：图像/ JPEG 
含量处置：附件;文件名= bx.jpg 
含量传输编码：BASE64 
 
 / 9J / 4AAQSkZJRgABAQEASABIAAD / 2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB 
 AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH / 2wBDAQEBAQEBAQEBAQEBAQEB 
 AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH / wAAR 
 CAAUAAoDAREAAhEBAxEB / 8QAFQABAQAAAAAAAAAAAAAAAAAAAAn / xAAYEAEAAwEAAAAAAAAA 
 AAAAAAAAGWen5 // EABQBAQAAAAAAAAAAAAAAAAAAAAD / xAAUEQEAAAAAAAAAAAAAAAAAAAAA 
 / 9oADAMBAAIRAxEAPwCb4AJHym0Vp3PQJTaK07noJHgA / 9K = 
 
 --ReaqsoxgOBHFXBhH 
内容类型：图像/ PNG 
内容处理：附件;文件名= day_bg.png 
含量传输编码：BASE64 
 
 iVBORw0KGgoAAAANSUhEUgAAAGQAAAApCAYAAADDJIzmAAAABmJLR0QA / WD / AP + gvaeTAAAA 
 CXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH2AwCCS0kTriU2QAAAB10RVh0Q29tbWVudABD 
 cmVhdGVkIHdpdGggVGhlIEdJTVDvZCVuAAAAXElEQVR42u3bQQEAMAgDMZiqiZtP5AwbfeQk 
 NO / WvPtLMR0TABEQIAICRECACAgQAREQIAICRECACAgQAREQIAICRECACAgQAREQIAICRECA 
 CAgQARGQ7NpPPasFT + 0FZPjBRwYAAAAASUVORK5CYII = 
 
 --ReaqsoxgOBHFXBhH-- 
  

/ ********************* Mime数据结束************************* ********** /

现在的问题是我必须解析这些数据并在我的应用程序中使用它，因为这个数据不是一个xml所以很难解析它（因为解析一些标签很容易）。任何知道如何解析mime数据的人都可以使用erlang来解析这些数据。

提前谢谢

解决方案

gen_smtp 和 erlang_smtp 包含解析mime邮件的代码。

For my new project which has email module.i need to show all the email information on web.when i m making a call to server i m getting the base64 encoded mime data. after applying base64 decoding technique i m getting the mime data as follows:

/*********************Mime data start ***********************************/

From [e-mail] Tue Jun 23 12:01:02 2009
Date: Tue, 23 Jun 2009 12:01:02 +0530
From: Prashant R Naik <[e-mail]>
To: [e-mail]
Subject: This is a test mail
Message-ID: <[e-mail]>
Reply-To: Prashant R Naik <[e-mail]>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="ReaqsoxgOBHFXBhH"
Content-Disposition: inline
User-Agent: Mutt/1.5.18 (2008-05-17)
Status: RO
Content-Length: 1912
Lines: 52


--ReaqsoxgOBHFXBhH
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Test mail.
Initiated by prashant

Regards,
-- 
Prashant R Naik
Principal Technologist | Symbian & Web2.0
Geodesic Limited | www.geodesic.com
Tel: [phone]

--ReaqsoxgOBHFXBhH
Content-Type: image/gif
Content-Disposition: attachment; filename="trash.gif"
Content-Transfer-Encoding: base64

R0lGODlhEAAQANUoADJ8wTqU2DmR1TqV2DN9wTSBxTWFyTaGyTJ9wTWGyTaKzjmS1TOAxTuV
2DaFyTN8wDiN0jiO0jSAxTeKzjqS1DN8wTqR1TWFyjB4vTOBxTmO0TmS1DaKzTeJzTqV1zSA
xDJ8wDqS1TeKzTF4vDF4vTiO0f///zuX2gAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAACgALAAA
AAAQABAAAAaDQNRpSCwWhcakcsk8mZ5Qpik5pUKvT2W1uDVWp+BiYNAImAZmz/lcDoQEFoFp
QTFtTPKFQLCAREolJiURJhCCJhqAJRMiIhwmjSYdJgqUjQoODgkJJgecBp0mBgYXBx8ZBQxY
UAUSDAUACLEPDwgEAAAEIBUEtygkIyMkwMMYw8EjKEEAOw==

--ReaqsoxgOBHFXBhH
Content-Type: image/jpeg
Content-Disposition: attachment; filename="bx.jpg"
Content-Transfer-Encoding: base64

/9j/4AAQSkZJRgABAQEASABIAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB
AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/2wBDAQEBAQEBAQEBAQEBAQEB
AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/wAAR
CAAUAAoDAREAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAn/xAAYEAEAAwEAAAAAAAAA
AAAAAAAAGWen5//EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA
/9oADAMBAAIRAxEAPwCb4AJHym0Vp3PQJTaK07noJHgA/9k=

--ReaqsoxgOBHFXBhH
Content-Type: image/png
Content-Disposition: attachment; filename="day_bg.png"
Content-Transfer-Encoding: base64

iVBORw0KGgoAAAANSUhEUgAAAGQAAAApCAYAAADDJIzmAAAABmJLR0QA/wD/AP+gvaeTAAAA
CXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH2AwCCS0kTriU2QAAAB10RVh0Q29tbWVudABD
cmVhdGVkIHdpdGggVGhlIEdJTVDvZCVuAAAAXElEQVR42u3bQQEAMAgDMZiqiZtP5AwbfeQk
NO/WvPtLMR0TABEQIAICRECACAgQAREQIAICRECACAgQAREQIAICRECACAgQAREQIAICRECA
CAgQARGQ7NpPPasFT+0FZPjBRwYAAAAASUVORK5CYII=

--ReaqsoxgOBHFXBhH--

/*********************Mime data end ***********************************/

now the problem is i have to parse this data and use it in my application.since this data is not a xml so it difficult to parse it (because parsing with some tag is easy).so any one who knows how to parse mime data help be.i m using erlang to parse this data.

Thank you in advance

解决方案

gen_smtp and erlang_smtp contain code for parsing mime messages.

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