mirror of https://github.com/Desuuuu/klipper.git
webhooks: Implement unix domain socket server
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
parent
d4dab9da5d
commit
4dcf494b97
|
@ -5,11 +5,12 @@
|
|||
# This file may be distributed under the terms of the GNU GPLv3 license
|
||||
import logging
|
||||
import socket
|
||||
import os
|
||||
import errno
|
||||
import json
|
||||
import homing
|
||||
|
||||
SOCKET_LOCATION = "/tmp/moonraker"
|
||||
SERVER_ADDRESS = "/tmp/klippy_uds"
|
||||
|
||||
# Json decodes strings as unicode types in Python 2.x. This doesn't
|
||||
# play well with some parts of Klipper (particuarly displays), so we
|
||||
|
@ -89,53 +90,93 @@ class WebRequest:
|
|||
self.response = "ok"
|
||||
return {"request_id": self.id, "response": self.response}
|
||||
|
||||
class ServerConnection:
|
||||
class ServerSocket:
|
||||
def __init__(self, webhooks, printer):
|
||||
self.printer = printer
|
||||
self.webhooks = webhooks
|
||||
self.reactor = printer.get_reactor()
|
||||
|
||||
# Klippy Connection
|
||||
self.fd = self.fd_handle = self.mutex = None
|
||||
self.is_server_connected = False
|
||||
self.partial_data = ""
|
||||
self.sock = self.fd_handle = None
|
||||
self.clients = {}
|
||||
is_fileinput = (printer.get_start_args().get('debuginput')
|
||||
is not None)
|
||||
if is_fileinput:
|
||||
# Do not try to connect in klippy batch mode
|
||||
# Do not enable server in batch mode
|
||||
return
|
||||
self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
||||
self.socket.setblocking(0)
|
||||
try:
|
||||
self.socket.connect(SOCKET_LOCATION)
|
||||
except socket.error:
|
||||
logging.debug(
|
||||
"ServerConnection: Moonraker server not detected")
|
||||
return
|
||||
logging.debug("ServerConnection: Moonraker connection established")
|
||||
self.is_server_connected = True
|
||||
self.fd = self.socket.fileno()
|
||||
self._remove_socket_file(SERVER_ADDRESS)
|
||||
self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
||||
self.sock.setblocking(0)
|
||||
self.sock.bind(SERVER_ADDRESS)
|
||||
self.sock.listen(1)
|
||||
self.fd_handle = self.reactor.register_fd(
|
||||
self.fd, self.process_received)
|
||||
self.mutex = self.reactor.mutex()
|
||||
printer.register_event_handler('klippy:disconnect', self.close_socket)
|
||||
self.sock.fileno(), self._handle_accept)
|
||||
printer.register_event_handler(
|
||||
'klippy:disconnect', self._handle_disconnect)
|
||||
|
||||
def close_socket(self):
|
||||
if self.is_server_connected:
|
||||
logging.info("ServerConnection: lost connection to Moonraker")
|
||||
self.is_server_connected = False
|
||||
def _handle_accept(self, eventtime):
|
||||
try:
|
||||
sock, addr = self.sock.accept()
|
||||
except socket.error:
|
||||
return
|
||||
sock.setblocking(0)
|
||||
client = ClientConnection(self, sock)
|
||||
self.clients[client.uid] = client
|
||||
|
||||
def _handle_disconnect(self):
|
||||
for client in list(self.clients.values()):
|
||||
client.close()
|
||||
if self.sock is not None:
|
||||
self.reactor.unregister_fd(self.fd_handle)
|
||||
try:
|
||||
self.socket.close()
|
||||
self.sock.close()
|
||||
except socket.error:
|
||||
pass
|
||||
|
||||
def is_connected(self):
|
||||
return self.is_server_connected
|
||||
def _remove_socket_file(self, file_path):
|
||||
try:
|
||||
os.remove(file_path)
|
||||
except OSError:
|
||||
if os.path.exists(file_path):
|
||||
logging.exception(
|
||||
"webhooks: Unable to delete socket file '%s'"
|
||||
% (file_path))
|
||||
raise
|
||||
|
||||
def pop_client(self, client_id):
|
||||
self.clients.pop(client_id, None)
|
||||
|
||||
def send_all_clients(self, data):
|
||||
for client in self.clients.values():
|
||||
client.send(data)
|
||||
|
||||
class ClientConnection:
|
||||
def __init__(self, server, sock):
|
||||
self.printer = server.printer
|
||||
self.webhooks = server.webhooks
|
||||
self.reactor = server.reactor
|
||||
self.server = server
|
||||
self.uid = id(self)
|
||||
self.sock = sock
|
||||
self.fd_handle = self.reactor.register_fd(
|
||||
self.sock.fileno(), self.process_received)
|
||||
self.partial_data = ""
|
||||
self.mutex = self.reactor.mutex()
|
||||
logging.info(
|
||||
"webhooks: New connection established")
|
||||
|
||||
def close(self):
|
||||
if self.fd_handle is not None:
|
||||
logging.info("webhooks: Client connection closed")
|
||||
self.reactor.unregister_fd(self.fd_handle)
|
||||
self.fd_handle = None
|
||||
try:
|
||||
self.sock.close()
|
||||
except socket.error:
|
||||
pass
|
||||
self.server.pop_client(self.uid)
|
||||
|
||||
def process_received(self, eventtime):
|
||||
try:
|
||||
data = self.socket.recv(4096)
|
||||
data = self.sock.recv(4096)
|
||||
except socket.error as e:
|
||||
# If bad file descriptor allow connection to be
|
||||
# closed by the data check
|
||||
|
@ -145,19 +186,19 @@ class ServerConnection:
|
|||
return
|
||||
if data == '':
|
||||
# Socket Closed
|
||||
self.close_socket()
|
||||
self.close()
|
||||
return
|
||||
requests = data.split('\x03')
|
||||
requests[0] = self.partial_data + requests[0]
|
||||
self.partial_data = requests.pop()
|
||||
for req in requests:
|
||||
logging.debug(
|
||||
"ServerConnection: Request received: %s" % (req))
|
||||
"webhooks: Request received: %s" % (req))
|
||||
try:
|
||||
web_request = WebRequest(json_loads_byteified(req))
|
||||
except Exception:
|
||||
logging.exception(
|
||||
"ServerConnection: Error decoding Server Request %s"
|
||||
"webhooks: Error decoding Server Request %s"
|
||||
% (req))
|
||||
continue
|
||||
self.reactor.register_callback(
|
||||
|
@ -177,18 +218,16 @@ class ServerConnection:
|
|||
self.printer.invoke_shutdown(msg)
|
||||
result = web_request.finish()
|
||||
logging.debug(
|
||||
"ServerConnection: Sending response - %s" % (str(result)))
|
||||
"webhooks: Sending response - %s" % (str(result)))
|
||||
self.send({'method': "response", 'params': result})
|
||||
|
||||
def send(self, data):
|
||||
if not self.is_server_connected:
|
||||
return
|
||||
with self.mutex:
|
||||
retries = 10
|
||||
data = json.dumps(data) + "\x03"
|
||||
while data:
|
||||
try:
|
||||
sent = self.socket.send(data)
|
||||
sent = self.sock.send(data)
|
||||
except socket.error as e:
|
||||
if e.errno == errno.EBADF or e.errno == errno.EPIPE \
|
||||
or not retries:
|
||||
|
@ -203,9 +242,9 @@ class ServerConnection:
|
|||
data = data[sent:]
|
||||
else:
|
||||
logging.info(
|
||||
"ServerConnection: Error sending server data,"
|
||||
"webhooks: Error sending server data,"
|
||||
" closing socket")
|
||||
self.close_socket()
|
||||
self.close()
|
||||
break
|
||||
|
||||
class WebHooks:
|
||||
|
@ -219,7 +258,7 @@ class WebHooks:
|
|||
log_file = start_args.get('log_file')
|
||||
if log_file is not None:
|
||||
self.register_static_path("klippy.log", log_file)
|
||||
self.sconn = ServerConnection(self, printer)
|
||||
self.sconn = ServerSocket(self, printer)
|
||||
StatusHandler(self)
|
||||
|
||||
def register_endpoint(self, path, callback):
|
||||
|
@ -269,7 +308,7 @@ class WebHooks:
|
|||
return cb
|
||||
|
||||
def call_remote_method(self, method, **kwargs):
|
||||
self.sconn.send({'method': method, 'params': kwargs})
|
||||
self.sconn.send_all_clients({'method': method, 'params': kwargs})
|
||||
|
||||
def _action_call_remote_method(self, method, **kwargs):
|
||||
self.call_remote_method(method, **kwargs)
|
||||
|
|
Loading…
Reference in New Issue