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"""Mock socket module used by the smtpd and smtplib tests.
"""
# imported for _GLOBAL_DEFAULT_TIMEOUT
import socket as socket_module
# Mock socket module
_defaulttimeout = None
_reply_data = None
# This is used to queue up data to be read through socket.makefile, typically
# *before* the socket object is even created. It is intended to handle a single
# line which the socket will feed on recv() or makefile().
def reply_with(line):
global _reply_data
_reply_data = line
class MockFile:
"""Mock file object returned by MockSocket.makefile().
"""
def __init__(self, lines):
self.lines = lines
def readline(self, limit=-1):
result = self.lines.pop(0) + b'\r\n'
if limit >= 0:
# Re-insert the line, removing the \r\n we added.
self.lines.insert(0, result[limit:-2])
result = result[:limit]
return result
def close(self):
pass
class MockSocket:
"""Mock socket object used by smtpd and smtplib tests.
"""
def __init__(self):
global _reply_data
self.output = []
self.lines = []
if _reply_data:
self.lines.append(_reply_data)
_reply_data = None
self.conn = None
self.timeout = None
def queue_recv(self, line):
self.lines.append(line)
def recv(self, bufsize, flags=None):
data = self.lines.pop(0) + b'\r\n'
return data
def fileno(self):
return 0
def settimeout(self, timeout):
if timeout is None:
self.timeout = _defaulttimeout
else:
self.timeout = timeout
def gettimeout(self):
return self.timeout
def setsockopt(self, level, optname, value):
pass
def getsockopt(self, level, optname, buflen=None):
return 0
def bind(self, address):
pass
def accept(self):
self.conn = MockSocket()
return self.conn, 'c'
def getsockname(self):
return ('0.0.0.0', 0)
def setblocking(self, flag):
pass
def listen(self, backlog):
pass
def makefile(self, mode='r', bufsize=-1):
handle = MockFile(self.lines)
return handle
def sendall(self, buffer, flags=None):
self.last = data
self.output.append(data)
return len(data)
def send(self, data, flags=None):
self.last = data
self.output.append(data)
return len(data)
def getpeername(self):
return 'peer'
def close(self):
pass
def socket(family=None, type=None, proto=None):
return MockSocket()
def create_connection(address, timeout=socket_module._GLOBAL_DEFAULT_TIMEOUT,
source_address=None):
try:
int_port = int(address[1])
except ValueError:
raise error
ms = MockSocket()
if timeout is socket_module._GLOBAL_DEFAULT_TIMEOUT:
timeout = getdefaulttimeout()
ms.settimeout(timeout)
return ms
def setdefaulttimeout(timeout):
global _defaulttimeout
_defaulttimeout = timeout
def getdefaulttimeout():
return _defaulttimeout
def getfqdn():
return ""
def gethostname():
pass
def gethostbyname(name):
return ""
class gaierror(Exception):
pass
class error(Exception):
pass
# Constants
AF_INET = None
SOCK_STREAM = None
SOL_SOCKET = None
SO_REUSEADDR = None
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