def recv(self, n, encoding="unicode", timeout=5):
# Sanity checking.
assert n
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
try:
# Get data.
self.get_chunks(n, encoding=encoding)
# Return the current buffer.
ret = self.buf
# Reset the old buffer.
self.buf = b""
# Return results.
if encoding == "unicode":
ret = encode_str(ret, encoding)
return ret
except Exception as e:
self.debug_print("Recv closign e" + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
if encoding == "unicode":
return u""
else:
return b""
def connect(self, addr, port):
# Save addr and port so socket can be reconnected.
self.addr = addr
self.port = port
# No socket detected.
if self.s is None:
self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.use_ssl:
self.s = ssl.wrap_socket(self.s)
# Make connection from custom interface.
if self.interface != "default":
try:
# Todo: fix this to use static ips from Net
src_ip = get_lan_ip(self.interface)
self.s.bind((src_ip, 0))
except socket.error as e:
if e.errno != 98:
raise e
try:
self.s.connect((addr, int(port)))
self.connected = 1
self.set_blocking(self.blocking, self.timeout)
except Exception as e:
self.debug_print("Connect failed")
error = parse_exception(e)
self.debug_print(error)
log_exception(error_log_path, error)
raise socket.error("Socket connect failed.")
def connect(self, addr, port):
# Save addr and port so socket can be reconnected.
self.addr = addr
self.port = port
# No socket detected.
if self.s is None:
self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.use_ssl:
self.s = ssl.wrap_socket(self.s)
# Make connection from custom interface.
if self.interface != "default":
try:
# Todo: fix this to use static ips from Net
src_ip = get_lan_ip(self.interface)
self.s.bind((src_ip, 0))
except socket.error as e:
if e.errno != 98:
raise e
try:
self.debug_print(addr)
self.debug_print(port)
self.s.connect((addr, int(port)))
self.connected = 1
self.set_blocking(self.blocking, self.timeout)
except Exception as e:
self.debug_print("Connect failed")
error = parse_exception(e)
self.debug_print(error)
log_exception(error_log_path, error)
raise socket.error("Socket connect failed.")
def recv(self, n, encoding="unicode", timeout=5):
# Sanity checking.
assert n
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
try:
# Get data.
self.get_chunks(n, encoding=encoding)
# Return the current buffer.
ret = self.buf
# Reset the old buffer.
self.buf = b""
# Return results.
if encoding == "unicode":
ret = encode_str(ret, encoding)
return ret
except Exception as e:
self.debug_print("Recv closign e" + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
if encoding == "unicode":
return u""
else:
return b""
def send_line(self, msg, timeout=5):
# Sanity checking.
assert (len(msg))
# Not connected.
if not self.connected:
return 0
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
# Check socket is in correct blocking mode.
if self.debug:
blocking = self.s.gettimeout()
if self.blocking:
assert (blocking >= 1 or blocking is None)
else:
assert (blocking == 0.0)
try:
# Convert to bytes Python 2 & 3
if sys.version_info >= (3, 0, 0):
if type(msg) == str:
msg = msg.encode("ascii")
else:
if type(msg) == unicode:
msg = str(msg)
# Convert delimiter to bytes.
if sys.version_info >= (3, 0, 0):
msg += self.delimiter.encode("ascii")
else:
msg += str(self.delimiter)
"""
The inclusion of the send_all flag makes this function behave like
a blocking socket for the purposes of sending a full line even if
the socket is non-blocking. It's assumed that lines will be small
and if the network buffer is full this code won't end up as a
bottleneck. (Otherwise you would have to check the number of bytes
returned every time you sent a line which is quite annoying.)
"""
ret = self.send(msg, send_all=1, timeout=timeout)
return ret
except Exception as e:
self.debug_print("Send line closing" + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
return 0
def recv_line(self, timeout=5):
# Socket is disconnected.
if not self.connected:
return u""
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
# Return existing reply.
if len(self.replies):
temp = self.replies[0]
self.replies = self.replies[1:]
return temp
try:
future = time.time() + (timeout or self.timeout)
while True:
self.update()
# Socket is disconnected.
if not self.connected:
return u""
# Non-blocking.
if not ((not len(self.replies) or len(
self.buf) >= self.max_buf) and self.blocking):
break
# Timeout elapsed.
if time.time() >= future and self.blocking:
break
# Avoid 100% CPU.
time.sleep(0.002)
if len(self.replies):
temp = self.replies[0]
self.replies = self.replies[1:]
return temp
return u""
except Exception as e:
self.debug_print("recv line error")
error = parse_exception(e)
self.debug_print(error)
log_exception(error_log_path, error)
def recv_line(self, timeout=5):
# Socket is disconnected.
if not self.connected:
return u""
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
# Return existing reply.
if len(self.replies):
temp = self.replies[0]
self.replies = self.replies[1:]
return temp
try:
future = time.time() + (timeout or self.timeout)
while True:
self.update()
# Socket is disconnected.
if not self.connected:
return u""
# Non-blocking.
if not ((not len(self.replies)
or len(self.buf) >= self.max_buf) and self.blocking):
break
# Timeout elapsed.
if time.time() >= future and self.blocking:
break
# Avoid 100% CPU.
time.sleep(0.002)
if len(self.replies):
temp = self.replies[0]
self.replies = self.replies[1:]
return temp
return u""
except Exception as e:
self.debug_print("recv line error")
error = parse_exception(e)
self.debug_print(error)
log_exception(error_log_path, error)
def send(self, msg, send_all=0, timeout=5, encoding="ascii"):
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
try:
# Convert to bytes Python 2 & 3
# The caller should ensure correct encoding.
if type(msg) == type(u""):
msg = encode_str(msg, "ascii")
# Work out stop time.
if send_all:
future = time.time() + (timeout or self.timeout)
else:
future = 0
repeat = 1
total_sent = 0
msg_len = len(msg)
while repeat:
repeat = 0
while True:
# Attempt to send all.
# This won't work if the network buffer is already full.
try:
bytes_sent = self.s.send(
msg[total_sent:self.chunk_size])
except socket.timeout as e:
err = e.args[0]
if err == "timed out":
return 0
except socket.error as e:
err = e.args[0]
if err == errno.EAGAIN or err == errno.EWOULDBLOCK:
break
else:
# Connection closed or other problem.
self.debug_print("Con send closing other")
self.close()
return 0
# Connection broken.
if not bytes_sent or bytes_sent is None:
self.close()
return 0
# How much has been sent?
total_sent += bytes_sent
# Avoid looping forever.
if self.blocking and not send_all:
break
# Everything sent.
if total_sent >= msg_len:
break
# Don't block.
if not send_all:
break
# Avoid 100% CPU.
time.sleep(0.001)
# Avoid looping forever.
if send_all:
if time.time() >= future:
repeat = 0
break
# Send the rest if blocking:
if total_sent < msg_len and send_all:
repeat = 1
return total_sent
except Exception as e:
self.debug_print("Con send: " + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
def recv(self, n, encoding="unicode", timeout=5):
# Sanity checking.
assert n
# Disconnect.
if not self.connected:
if encoding == "unicode":
return u""
else:
return b""
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
# Check socket is in correct blocking mode.
if self.debug:
blocking = self.s.gettimeout()
if self.blocking:
assert (blocking >= 1 or blocking is None)
else:
assert (blocking == 0.0)
try:
# Save current buffer state.
temp_buf = self.buf[:]
# Clear buffer.
self.buf = u""
# Get data.
future = time.time() + (timeout or self.timeout)
while True:
self.get_chunks(n, encoding=encoding)
if not (len(self.buf) < n and self.connected and self.blocking):
break
# Avoid 100% CPU.
time.sleep(0.002)
# Avoid looping forever.
if time.time() >= future:
break
# Save current buffer.
ret = self.buf[:]
# Restore old buffer.
self.buf = temp_buf
# Return results.
if encoding != "unicode":
# Convert from unicode string with latin-1 encoding
# To a byte string.
if sys.version_info >= (3, 0, 0):
codes = []
for ch in ret:
codes.append(ord(ch))
if len(codes):
return bytes(codes)
else:
return b""
else:
byte_str = b""
for ch in ret:
byte_str += chr(ord(ch))
return byte_str
return ret
except Exception as e:
self.debug_print("Recv closign e" + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
if encoding == "unicode":
return u""
else:
return b""
def send(self, msg, send_all=0, timeout=5):
# Sanity check.
assert (len(msg))
# Not connected.
if not self.connected:
return 0
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
# Check socket is in correct blocking mode.
if self.debug:
blocking = self.s.gettimeout()
if self.blocking:
assert (blocking >= 1 or blocking is None)
else:
assert (blocking == 0.0)
try:
# Convert to bytes Python 2 & 3
if sys.version_info >= (3, 0, 0):
if type(msg) == str:
msg = msg.encode("ascii")
else:
if type(msg) == unicode:
msg = str(msg)
repeat = 1
total_sent = 0
future = time.time() + (timeout or self.timeout)
while repeat:
repeat = 0
while True:
# Attempt to send all.
# This won't work if the network buffer is already full.
try:
self.debug_print("Attempting to send: ")
self.debug_print(
str(len(msg[total_sent:self.chunk_size])))
self.debug_print(
"Blocking mode = " + str(self.s.gettimeout()))
bytes_sent = self.s.send(
msg[total_sent:self.chunk_size])
except socket.timeout as e:
err = e.args[0]
self.debug_print("Con send: " + str(e))
self.debug_print(err)
if err == "timed out":
return 0
except socket.error as e:
err = e.args[0]
self.debug_print("Con send: " + str(e))
if err == errno.EAGAIN or err == errno.EWOULDBLOCK:
break
else:
# Connection closed or other problem.
self.debug_print("Con send closing other")
self.close()
return 0
# Connection broken.
if not bytes_sent or bytes_sent is None:
self.debug_print(bytes_sent)
self.debug_print("Con send bytes none!")
self.close()
return 0
# How much has been sent?
total_sent += bytes_sent
# Avoid looping forever.
if self.blocking and not send_all:
break
# Everything sent.
if total_sent >= len(msg):
break
# Don't block.
if not send_all:
break
# Avoid 100% CPU.
time.sleep(0.002)
# Avoid looping forever.
if time.time() >= future:
repeat = 0
break
# Send the rest if blocking:
if total_sent < len(msg) and send_all:
repeat = 1
self.alive = time.time()
return total_sent
except Exception as e:
self.debug_print("Con send: " + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
def send(self, msg, send_all=0, timeout=5, encoding="ascii"):
# Update timeout.
if timeout != self.timeout and self.blocking:
self.set_blocking(self.blocking, timeout)
try:
# Convert to bytes Python 2 & 3
# The caller should ensure correct encoding.
if type(msg) == type(u""):
msg = encode_str(msg, "ascii")
# Work out stop time.
if send_all:
future = time.time() + (timeout or self.timeout)
else:
future = 0
repeat = 1
total_sent = 0
msg_len = len(msg)
while repeat:
repeat = 0
while True:
# Attempt to send all.
# This won't work if the network buffer is already full.
try:
bytes_sent = self.s.send(
msg[total_sent:self.chunk_size])
except socket.timeout as e:
err = e.args[0]
if err == "timed out":
return 0
except socket.error as e:
err = e.args[0]
if err == errno.EAGAIN or err == errno.EWOULDBLOCK:
break
else:
# Connection closed or other problem.
self.debug_print("Con send closing other")
self.close()
return 0
# Connection broken.
if not bytes_sent or bytes_sent is None:
self.close()
return 0
# How much has been sent?
total_sent += bytes_sent
# Avoid looping forever.
if self.blocking and not send_all:
break
# Everything sent.
if total_sent >= msg_len:
break
# Don't block.
if not send_all:
break
# Avoid 100% CPU.
time.sleep(0.001)
# Avoid looping forever.
if send_all:
if time.time() >= future:
repeat = 0
break
# Send the rest if blocking:
if total_sent < msg_len and send_all:
repeat = 1
return total_sent
except Exception as e:
self.debug_print("Con send: " + str(e))
error = parse_exception(e)
log_exception(error_log_path, error)
self.close()
