64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
|
# Copyright (c) 2015, Menno Smits
|
||
|
|
# Released subject to the New BSD License
|
||
|
|
# Please see http://en.wikipedia.org/wiki/BSD_licenses
|
||
|
|
|
||
|
|
"""
|
||
|
|
This module contains IMAPClient's functionality related to Transport
|
||
|
|
Layer Security (TLS a.k.a. SSL).
|
||
|
|
"""
|
||
|
|
|
||
|
|
import imaplib
|
||
|
|
import socket
|
||
|
|
import ssl
|
||
|
|
|
||
|
|
|
||
|
|
def wrap_socket(sock, ssl_context, host):
|
||
|
|
|
||
|
|
if not hasattr(ssl, 'create_default_context'):
|
||
|
|
# Python 2.7.0 - 2.7.8 do not have the concept of ssl contexts.
|
||
|
|
# Thus we have to use the less flexible and legacy way of wrapping the
|
||
|
|
# socket
|
||
|
|
if ssl_context is not None:
|
||
|
|
raise RuntimeError(
|
||
|
|
"Cannot precisely configure the SSL connection, upgrade to "
|
||
|
|
"Python >= 2.7.9 to fine tune the settings."
|
||
|
|
)
|
||
|
|
|
||
|
|
return ssl.wrap_socket(sock)
|
||
|
|
|
||
|
|
if ssl_context is None:
|
||
|
|
ssl_context = ssl.create_default_context()
|
||
|
|
|
||
|
|
return ssl_context.wrap_socket(sock, server_hostname=host)
|
||
|
|
|
||
|
|
|
||
|
|
class IMAP4_TLS(imaplib.IMAP4):
|
||
|
|
"""IMAP4 client class for TLS/SSL connections.
|
||
|
|
|
||
|
|
Adapted from imaplib.IMAP4_SSL.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, host, port, ssl_context, timeout):
|
||
|
|
self.ssl_context = ssl_context
|
||
|
|
self._timeout = timeout
|
||
|
|
imaplib.IMAP4.__init__(self, host, port)
|
||
|
|
|
||
|
|
def open(self, host, port):
|
||
|
|
self.host = host
|
||
|
|
self.port = port
|
||
|
|
sock = socket.create_connection((host, port), self._timeout.connect)
|
||
|
|
self.sock = wrap_socket(sock, self.ssl_context, host)
|
||
|
|
self.file = self.sock.makefile('rb')
|
||
|
|
|
||
|
|
def read(self, size):
|
||
|
|
return self.file.read(size)
|
||
|
|
|
||
|
|
def readline(self):
|
||
|
|
return self.file.readline()
|
||
|
|
|
||
|
|
def send(self, data):
|
||
|
|
self.sock.sendall(data)
|
||
|
|
|
||
|
|
def shutdown(self):
|
||
|
|
imaplib.IMAP4.shutdown(self)
|