英文:
Format subject email
问题
# 我想恢复电子邮件的“SUBJECT”值
import imaplib
import os
import email
email_user = 'xxxxxxx@xxxxxxx'
email_pass = 'xxxxxxxx'
M = imaplib.IMAP4_SSL('imap.gmail.com', 993)
M.login(email_user, email_pass)
M.select('INBOX')
typ, message_numbers = M.search(None, 'ALL')
num = b'2420'
typ, data = M.fetch(num, '(RFC822)')
raw_email = data[0][1].decode('utf-8')
email_message = email.message_from_string(raw_email)
print(email_message['Subject'])
该值为
=?UTF-8?Q?=5BNAS=5FLEBARS=5D_Active_Backup_for_Business_=2D_La_t=C3=A2che_?=
=?UTF-8?Q?de_sauvegarde_DBS_=2D_SIDEXIS_sur_NAS=5FLEBARS_est_termin=C3=A9e?=
但我想要这种编码
[NAS_LEBARS] Active Backup for Business - La tâche de sauvegarde DBS - SIDEXIS sur NAS_LEBARS est terminée
谢谢
英文:
I want to recover the value "SUBJECT" of an email
import imaplib
import os
import email
email_user = 'xxxxxxx@xxxxxxx'
email_pass = 'xxxxxxxx'
M = imaplib.IMAP4_SSL('imap.gmail.com', 993)
M.login(email_user, email_pass)
M.select('INBOX')
typ, message_numbers = M.search(None, 'ALL')
num = b'2420'
typ, data = M.fetch(num, '(RFC822)')
raw_email = data[0][1].decode('utf-8')
email_message = email.message_from_string(raw_email)
print(email_message['Subject'])
the value is
=?UTF-8?Q?=5BNAS=5FLEBARS=5D_Active_Backup_for_Business_=2D_La_t=C3=A2che_?=
=?UTF-8?Q?de_sauvegarde_DBS_=2D_SIDEXIS_sur_NAS=5FLEBARS_est_termin=C3=A9e?=
but i want this encode
[NAS_LEBARS] Active Backup for Business - La tâche de sauvegarde DBS - SIDEXIS sur NAS_LEBARS est terminée
Thanks
答案1
得分: -1
这基本上做了你需要的事情，它：
- 获取每个编码行
- 提取需要解码的部分
- 转换内容，
- 用空格替换每个 ''_''
- 用具有相应十六进制代码的字节替换每个 ''=XX''
- 保留所有其他字符不变
- 将整个结果解码为UTF-8字节数组
import re
subject = [
''=?UTF-8?Q?=5BNAS=5FLEBARS=5D_Active_Backup_for_Business_=2D_La_t=C3=A2che_?='',
''=?UTF-8?Q?de_sauvegarde_DBS_=2D_SIDEXIS_sur_NAS=5FLEBARS_est_termin=C3=A9e?=''
]
def convert_content(content):
iter_content = iter(content)
try:
while True:
ch = next(iter_content)
if ch == ''_':
yield b' '
elif ch == ''=':
yield bytearray.fromhex(next(iter_content)+next(iter_content))
else:
yield ch.encode('utf-8')
except StopIteration:
pass
def process(data):
for line in data:
m = re.match(r'=\?(?:utf|UTF)-8\?(?:q|Q)\?(.*)\?=', line)
yield b''.join(convert_content(m.group(1))).decode('utf-8')
print(''.join(process(subject)))
输出：
[NAS_LEBARS] Active Backup for Business - La tâche de sauvegarde DBS - SIDEXIS sur NAS_LEBARS est terminée
英文:
This pretty much does what you need, it:
- takes each encoded line
- extracts the part that needs to be decoded
- converts that,
- replacing each '_' with a space
- replacing each '=XX' with the byte with that hex code
- leaving all other characters as is
- decodes the entire result as a UTF-8 bytes array
import re
subject = [
'=?UTF-8?Q?=5BNAS=5FLEBARS=5D_Active_Backup_for_Business_=2D_La_t=C3=A2che_?=',
'=?UTF-8?Q?de_sauvegarde_DBS_=2D_SIDEXIS_sur_NAS=5FLEBARS_est_termin=C3=A9e?='
]
def convert_content(content):
iter_content = iter(content)
try:
while True:
ch = next(iter_content)
if ch == '_':
yield b' '
elif ch == '=':
yield bytearray.fromhex(next(iter_content)+next(iter_content))
else:
yield ch.encode('utf-8')
except StopIteration:
pass
def process(data):
for line in data:
m = re.match(r'=\?(?:utf|UTF)-8\?(?:q|Q)\?(.*)\?=', line)
yield b''.join(convert_content(m.group(1))).decode('utf-8')
print(''.join(process(subject)))
Output:
[NAS_LEBARS] Active Backup for Business - La tâche de sauvegarde DBS - SIDEXIS sur NAS_LEBARS est terminée
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