Python imaplib-get_filename()在附件包含UTF-8字符时不工作
我有这个功能,可以使用imaplib从给定的电子邮件下载所有附件Python imaplib-get_filename()在附件包含UTF-8字符时不工作,python,python-3.x,imaplib,Python,Python 3.x,Imaplib,我有这个功能,可以使用imaplib从给定的电子邮件下载所有附件 # Download all attachment files for a given email def downloaAttachmentsInEmail(m, emailid, outputdir, markRead): resp, data = m.uid("FETCH", emailid, "(BODY.PEEK[])") email_body = data[0][1] mail = email.
# Download all attachment files for a given email
def downloaAttachmentsInEmail(m, emailid, outputdir, markRead):
resp, data = m.uid("FETCH", emailid, "(BODY.PEEK[])")
email_body = data[0][1]
mail = email.message_from_bytes(email_body)
if mail.get_content_maintype() != 'multipart':
return
for part in mail.walk():
if part.get_content_maintype() != 'multipart' and part.get('Content-Disposition') is not None:
open(outputdir + '/' + part.get_filename(), 'wb').write(part.get_payload(decode=True)
if(markRead):
m.uid("STORE", emailid, "+FLAGS", "(\Seen)")
问题是,当我尝试下载文件名中包含UTF-8字符的文件时,它不起作用。我得到了这个错误,我想这是因为part.get\u文件名没有正确读取名称:
OSError: [Errno 22] Invalid argument: './temp//=?UTF-8?B?QkQgUmVsYXTDs3JpbyAywqogRmFzZS5kb2M=?=\r\n\t=?UTF-8?B?eA==?='
我能做些什么来解决这个问题?我找到了一个解决方案
# Download all attachment files for a given email
def downloaAttachmentsInEmail(m, emailid, outputdir, markRead):
resp, data = m.uid("FETCH", emailid, "(BODY.PEEK[])")
email_body = data[0][1]
mail = email.message_from_bytes(email_body)
if mail.get_content_maintype() != 'multipart':
return
for part in mail.walk():
if part.get_content_maintype() != 'multipart' and part.get('Content-Disposition') is not None:
filename, encoding = decode_header(part.get_filename())[0]
if(encoding is None):
open(outputdir + '/' + filename, 'wb').write(part.get_payload(decode=True))
else:
open(outputdir + '/' + filename.decode(encoding), 'wb').write(part.get_payload(decode=True))
if(markRead):
m.uid("STORE", emailid, "+FLAGS", "(\Seen)")**
这是一个老问题,但我面对这个问题,很难找到解决办法。。。也许这可以帮助其他人 编辑:这只包括将文件名解码为正确文件名的部分
import re
import base64
import quopri
def encoded_words_to_text(encoded_words):
try:
encoded_word_regex = r'=\?{1}(.+)\?{1}([B|Q])\?{1}(.+)\?{1}='
charset, encoding, encoded_text = re.match(encoded_word_regex, encoded_words).groups()
if encoding is 'B':
byte_string = base64.b64decode(encoded_text)
elif encoding is 'Q':
byte_string = quopri.decodestring(encoded_text)
return byte_string.decode(charset)
except:
return encoded_words
结果:
test_string = '=?utf-8?B?SUJUIFB1cmNoYXNlIE9yZGVyLnBkZg==?='
encoded_words_to_text(test_string)
'IBT Purchase Order.pdf'
是否可以添加所有导入的模块?请注意,decode_header函数可在email.header导入中找到。