从 mbox 写入 html 文件

Question

在 Yahoo 群组关闭之前，您可以将群组的内容下载到 mbox 文件中。我正在尝试将 mbox 文件转换为一系列 html 文件 - 每条消息一个。我的问题是处理 html 中的编码和特殊字符。这是我的尝试：

import mailbox

the_dir = "/path/to/file"

mbox = mailbox.mbox(the_dir + "12394334.mbox")

html_header = """<!DOCTYPE html>
<html>
<head>
<title>Email message</title>
</head>
<body>"""    
html_footer = '</body></html>'

for message in mbox:
    mess_from = message['from']
    subject = message['subject']
    time_received = message['date']
    if message.is_multipart():
        content = ''.join(str(part.get_payload(decode=True)) for part in message.get_payload())
    else:
        content = message.get_payload(decode=True)
    
    content = str(content)[2:].replace('\n', '<br/>')
    subject.replace('/', '-')
    fname = subject + " " + time_received + '.html'
        
    with open(the_dir + 'html/' + fname , 'w') as the_file:
        the_file.write(html_header)
        the_file.write('<br/>' + 'From: ' + mess_from)
        the_file.write('<br/>' + 'Subject: ' + subject)
        the_file.write('<br/>' + 'Received: ' + time_received + '<br/><br/>')
        the_file.write(content)

邮件内容在撇号和其他特殊字符之前有反斜杠，例如：

star rating, currently going for \xa311.99 [ideal Xmas present]. Advert over - Seroiusly, if you don't have a decent book on small boat

我的问题是，获取电子邮件内容并使用正确字符将其写入 html 文件的最佳方法是什么。我不是第一个运行解决这个问题的人。

Answer 1

我找到了这个问题的答案。

首先，我需要通过子类型 (part.get_content_subtype()) 来识别 html。这就是我知道我有一个 html 子类型的方式。

然后我需要使用 part.get_charsets() 获取字符集。有一个 part.get_charset() 但它总是 returns None 所以我取 get_charsets()

的第一个元素

get_payload 似乎是 bass ackward，decode=True 参数意味着它不会解码有效负载。然后，我使用之前获得的字符集对消息进行解码。否则，我用 decode=False.

解码它

如果是文本，我去掉换行符等并添加一个 html header 然后写入文件。

下一份工作，

使用 BeautifulSoup 将发件人 info/subject 添加到
弄清楚如何处理附件和 link html 文件
有些字符仍然没有显示，例如“£”等

文字

import mailbox

the_dir = "/path/to/mbox/"

mbox = mailbox.mbox(the_dir + "12394334.mbox")

html_footer = "</body></html>"
html_flag = False

for message in mbox:

mess_from = message['from']
subject = message['subject']
time_received = message['date']
fname = subject + " " + time_received
fname = fname.replace('/', '-')

if message.is_multipart():
    contents_text = []
    contents_html = []
    for part in message.walk():
        maintype = part.get_content_maintype()
        subtype = part.get_content_subtype()
        if maintype == 'multipart' or maintype == 'message':
            # Reject containers
            continue
        if subtype == 'html':
            enc = part.get_charsets()
            if enc[0] is not None:
                contents_html.append(part.get_payload(decode=True).decode(enc[0]))
            else:
                contents_html.append(part.get_payload(decode=False))
        elif subtype == 'text':
            contents_text.append(part.get_payload(decode=False))
        else:       #I will use this to process attachmnents in the future
            continue
        
    if len(contents_html)> 0:
        if len(contents_html)>1:
            print('multiple html')      #This hasn't happened yet
        html_flag = True
        content = '\n\n'.join(contents_html)
          
    else:
        html_flag = False
else:
    content = message.get_payload(decode=False) 
    content = content.replace('\n', '<br/>')
    content = content.replace('=\n', '<br/>')        
    content = content.replace('\n', '<br/>')
    content = content.replace('=20', '')
    html_header = f""" <!DOCTYPE html>
    <html>
    <head>
    <title>{fname}</title>
    </head>
    <body>"""      
    content = (html_header + '<br/>' + 
               'From: ' + mess_from + '<br/>' 
               + 'Subject: ' + subject + '<br/>' + 
               'Received: ' + time_received + '<br/><br/>' + 
               content + html_footer)


with open(the_dir + "html/" + fname + ".html", "w") as the_file:
    the_file.write(content)

打印('Done!')

从 mbox 写入 html 文件

Write html file from mbox

html

python

mbox