earthjasonlin/MailForwarder
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style: pylint

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This commit is contained in:
Zichao Lin 2024-07-28 11:40:00 +08:00
parent ec2b4aaa29
commit f49138614d
Signed by: earthjasonlin
GPG Key ID: 406D9913DE2E42FB
1 changed files with 39 additions and 30 deletions
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main.py
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@ -1,3 +1,4 @@
# pylint: disable=C0301, C0114
import json import json
import imaplib import imaplib
import smtplib import smtplib
@ -5,22 +6,23 @@ import email
from email.mime.multipart import MIMEMultipart from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText from email.mime.text import MIMEText
from email.utils import parseaddr from email.utils import parseaddr
from email.header import decode_header
import time import time
import datetime import datetime
import logging import logging
import socks
import socket import socket
import re import re
import socks
from email.header import decode_header
def provider_in(address, provider_list): def provider_in(address, provider_list):
"""Check if the provider is in the provider list"""
for provider in provider_list: for provider in provider_list:
if address.endswith(provider): if address.endswith(provider):
return True return True
return False return False
def decode_mime_words(s): def decode_mime_words(s):
"""Decodes a string containing multiple MIME words"""
decoded_fragments = decode_header(s) decoded_fragments = decode_header(s)
return ''.join( return ''.join(
str(fragment, encoding or 'utf-8') if isinstance(fragment, bytes) else fragment str(fragment, encoding or 'utf-8') if isinstance(fragment, bytes) else fragment
@ -28,30 +30,34 @@ def decode_mime_words(s):
) )
def add_mask(original_msg, content, is_html): def add_mask(original_msg, content, is_html):
"""Adds a mask to the content"""
original_subject = decode_mime_words(original_msg['Subject']) original_subject = decode_mime_words(original_msg['Subject'])
from_name, from_address = parseaddr(original_msg['From']) from_name, from_address = parseaddr(original_msg['From'])
from_name = decode_mime_words(from_name) from_name = decode_mime_words(from_name)
to_name, to_address = parseaddr(original_msg['To']) to_name, to_address = parseaddr(original_msg['To'])
to_name = decode_mime_words(to_name) to_name = decode_mime_words(to_name)
header = f"""<html><head></head><body><table style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px" width="100%" bgcolor="#3D3D3D" align="center"><tbody><tr><td width="50%" align="left" style="font-weight:bolder;color:#fff"><p style="font-size:x-large;margin-block:.2em">Forwarded Email</p>{'' if is_html else '<p style="font-size: medium; margin-block: 0.2em;">This email is plain text, it may have display issues</p>'}</td><td width="50%" align="right" style="color:#fff;text-align:right"><p style="margin-block: 0.1em">From: {from_name} &lt;<a href="mailto:{from_address}">{from_address}</a>&gt;</p><p style="margin-block: 0.1em">To: {to_name} &lt;<a href="mailto:{to_address}">{to_address}</a>&gt;</p><p style="margin-block:.1em">Subject: {original_subject}</p></td></tr></tbody></table><table style="padding:0;max-width:850px" width="100%" align="center"><tbody><tr><td style="padding-left:15px;padding-right:15px" width="100%">""" header = f"""<html><head></head><body><table style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px" width="100%" bgcolor="#3D3D3D" align="center"><tbody><tr><td width="50%" align="left" style="font-weight:bolder;color:#fff"><p style="font-size:x-large;margin-block:.2em">Forwarded Email</p>{'' if is_html else '<p style="font-size: medium; margin-block: 0.2em;">This email is plain text, it may have display issues</p>'}</td><td width="50%" align="right" style="color:#fff;text-align:right"><p style="margin-block: 0.1em">From: {from_name} &lt;<a href="mailto:{from_address}">{from_address}</a>&gt;</p><p style="margin-block: 0.1em">To: {to_name} &lt;<a href="mailto:{to_address}">{to_address}</a>&gt;</p><p style="margin-block:.1em">Subject: {original_subject}</p></td></tr></tbody></table><table style="padding:0;max-width:850px" width="100%" align="center"><tbody><tr><td style="padding-left:15px;padding-right:15px" width="100%">"""
footer = f"""</td></tr></tbody></table><table style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px" width="100%" bgcolor="#3D3D3D" align="center"><tbody><tr><td width="50%" align="left" style="color:#d22;font-size:xx-large;font-weight:bolder">FORWARDED</td><td width="50%" align="right" style="color:#fff;text-align:left"><p style="font-size:x-large;font-weight:700;margin-block:0">Notice:</p><p style="margin-block:.1em">&emsp;This is a automatically forwarded email, which means it may contains something bad.</p><p style="margin-block:.1em">&emsp;You shouldn't reply directly to this email, it will never reach your destination!</p></td></tr></tbody></table></body></html>""" footer = """</td></tr></tbody></table><table style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px" width="100%" bgcolor="#3D3D3D" align="center"><tbody><tr><td width="50%" align="left" style="color:#d22;font-size:xx-large;font-weight:bolder">FORWARDED</td><td width="50%" align="right" style="color:#fff;text-align:left"><p style="font-size:x-large;font-weight:700;margin-block:0">Notice:</p><p style="margin-block:.1em">&emsp;This is a automatically forwarded email, which means it may contains something bad.</p><p style="margin-block:.1em">&emsp;You shouldn't reply directly to this email, it will never reach your destination!</p></td></tr></tbody></table></body></html>"""
return header + content + footer return header + content + footer
def load_config(config_file='config.json'): def load_config(config_file='config.json'):
with open(config_file, 'r') as file: """Loads the configuration file"""
with open(config_file, 'r', encoding='utf-8') as file:
config = json.load(file) config = json.load(file)
return config return config
def set_proxy(proxy_config): def set_proxy(proxy_config):
"""Sets the proxy"""
socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, proxy_config['server'], proxy_config['port']) socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, proxy_config['server'], proxy_config['port'])
socket.socket = socks.socksocket socket.socket = socks.socksocket
def setup_logging(filename): def setup_logging(filename):
"""Sets up the logging"""
logger = logging.getLogger() logger = logging.getLogger()
logger.setLevel('DEBUG') logger.setLevel('DEBUG')
BASIC_FORMAT = "%(asctime)s >> %(levelname)s - %(message)s" basic_format = "%(asctime)s >> %(levelname)s - %(message)s"
DATE_FORMAT = '%Y-%m-%d %H:%M:%S' date_format = '%Y-%m-%d %H:%M:%S'
formatter = logging.Formatter(BASIC_FORMAT, DATE_FORMAT) formatter = logging.Formatter(basic_format, date_format)
chlr = logging.StreamHandler() chlr = logging.StreamHandler()
chlr.setFormatter(formatter) chlr.setFormatter(formatter)
chlr.setLevel('INFO') chlr.setLevel('INFO')
@ -62,6 +68,7 @@ def setup_logging(filename):
return logger return logger
def get_unforwarded_emails(account_config, logger): def get_unforwarded_emails(account_config, logger):
"""Gets the unforwarded emails"""
if account_config['proxy']['enabled']: if account_config['proxy']['enabled']:
set_proxy(account_config['proxy']) set_proxy(account_config['proxy'])
@ -73,21 +80,21 @@ def get_unforwarded_emails(account_config, logger):
imap.login(account_config['email'], account_config['password']) imap.login(account_config['email'], account_config['password'])
if provider_in(account_config['email'], ["163.com", "126.com"]): if provider_in(account_config['email'], ["163.com", "126.com"]):
imaplib.Commands['ID'] = ('AUTH') imaplib.Commands['ID'] = 'AUTH'
args = ("name","XXXX","contact","XXXX@163.com","version","1.0.0","vendor","myclient") args = ("name","XXXX","contact","XXXX@163.com","version","1.0.0","vendor","myclient")
typ, dat = imap._simple_command('ID', '("' + '" "'.join(args) + '")') imap._simple_command('ID', '("' + '" "'.join(args) + '")') # pylint: disable=W0212
imap.select() imap.select()
status, messages = imap.search(None, 'UNSEEN') _, messages = imap.search(None, 'UNSEEN')
email_ids = messages[0].split() email_ids = messages[0].split()
emails = [] emails = []
for email_id in email_ids: for email_id in email_ids:
status, data = imap.fetch(email_id, '(RFC822)') _, data = imap.fetch(email_id, '(RFC822)')
for response_part in data: for response_part in data:
if isinstance(response_part, tuple): if isinstance(response_part, tuple):
msg = email.message_from_bytes(response_part[1]) msg = email.message_from_bytes(response_part[1]) # pylint: disable=E1136
emails.append((email_id, msg)) emails.append((email_id, msg))
imap.store(email_id, '+FLAGS', '\\Seen') imap.store(email_id, '+FLAGS', '\\Seen')
@ -97,6 +104,7 @@ def get_unforwarded_emails(account_config, logger):
return emails return emails
def forward_emails(account_config, emails, logger): def forward_emails(account_config, emails, logger):
"""Forwards the emails"""
if account_config['proxy']['enabled']: if account_config['proxy']['enabled']:
set_proxy(account_config['proxy']) set_proxy(account_config['proxy'])
@ -163,6 +171,7 @@ def forward_emails(account_config, emails, logger):
smtp.quit() smtp.quit()
def main(): def main():
"""Main function"""
config = load_config() config = load_config()
logger = setup_logging(config['log']) logger = setup_logging(config['log'])
@ -173,8 +182,8 @@ def main():
emails = get_unforwarded_emails(account, logger) emails = get_unforwarded_emails(account, logger)
if emails: if emails:
forward_emails(account, emails, logger) forward_emails(account, emails, logger)
except Exception as e: except Exception as e: # pylint: disable=W0718
logger.error(f"Error processing account {account['email']}: {str(e)}") logger.error(f"Error processing account {account['email']}: {str(e)}") # pylint: disable=W1203
logger.info(datetime.datetime.now().strftime("Check finished at %Y-%m-%d %H:%M:%S")) logger.info(datetime.datetime.now().strftime("Check finished at %Y-%m-%d %H:%M:%S"))
time.sleep(config.get('check_interval', 60)) time.sleep(config.get('check_interval', 60))