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The smtp test server can be set via CPYTHON_TEST_SMTP_SERVER environment variable. If not set, it uses the default value smtp.gmail.com This is needed because the network I'm on filters access to smtp.gmail.com resulting in a failing test. Co-authored-by: Łukasz Langa <lukasz@langa.pl>
93 lines
3.1 KiB
Python
93 lines
3.1 KiB
Python
import unittest
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from test import support
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from test.support import import_helper
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from test.support import socket_helper
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import os
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import smtplib
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import socket
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ssl = import_helper.import_module("ssl")
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support.requires("network")
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SMTP_TEST_SERVER = os.getenv('CPYTHON_TEST_SMTP_SERVER', 'smtp.gmail.com')
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def check_ssl_verifiy(host, port):
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context = ssl.create_default_context()
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with socket.create_connection((host, port)) as sock:
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try:
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sock = context.wrap_socket(sock, server_hostname=host)
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except Exception:
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return False
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else:
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sock.close()
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return True
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class SmtpTest(unittest.TestCase):
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testServer = SMTP_TEST_SERVER
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remotePort = 587
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def test_connect_starttls(self):
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support.get_attribute(smtplib, 'SMTP_SSL')
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context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
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context.check_hostname = False
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context.verify_mode = ssl.CERT_NONE
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with socket_helper.transient_internet(self.testServer):
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server = smtplib.SMTP(self.testServer, self.remotePort)
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try:
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server.starttls(context=context)
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except smtplib.SMTPException as e:
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if e.args[0] == 'STARTTLS extension not supported by server.':
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unittest.skip(e.args[0])
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else:
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raise
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server.ehlo()
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server.quit()
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class SmtpSSLTest(unittest.TestCase):
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testServer = SMTP_TEST_SERVER
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remotePort = 465
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def test_connect(self):
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support.get_attribute(smtplib, 'SMTP_SSL')
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with socket_helper.transient_internet(self.testServer):
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server = smtplib.SMTP_SSL(self.testServer, self.remotePort)
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server.ehlo()
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server.quit()
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def test_connect_default_port(self):
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support.get_attribute(smtplib, 'SMTP_SSL')
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with socket_helper.transient_internet(self.testServer):
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server = smtplib.SMTP_SSL(self.testServer)
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server.ehlo()
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server.quit()
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@support.requires_resource('walltime')
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def test_connect_using_sslcontext(self):
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context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
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context.check_hostname = False
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context.verify_mode = ssl.CERT_NONE
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support.get_attribute(smtplib, 'SMTP_SSL')
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with socket_helper.transient_internet(self.testServer):
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server = smtplib.SMTP_SSL(self.testServer, self.remotePort, context=context)
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server.ehlo()
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server.quit()
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def test_connect_using_sslcontext_verified(self):
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with socket_helper.transient_internet(self.testServer):
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can_verify = check_ssl_verifiy(self.testServer, self.remotePort)
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if not can_verify:
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self.skipTest("SSL certificate can't be verified")
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support.get_attribute(smtplib, 'SMTP_SSL')
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context = ssl.create_default_context()
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with socket_helper.transient_internet(self.testServer):
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server = smtplib.SMTP_SSL(self.testServer, self.remotePort, context=context)
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server.ehlo()
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server.quit()
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if __name__ == "__main__":
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unittest.main()
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