Storm Dragon
87 lines
3.4 KiB
Python
87 lines
3.4 KiB
Python
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Fenrir TTY screen reader
|
|
# By Chrys, Storm Dragon, and contributors.
|
|
|
|
import os
|
|
import os.path
|
|
import select
|
|
import socket
|
|
|
|
from fenrirscreenreader.core import debug
|
|
from fenrirscreenreader.core.eventData import FenrirEventType
|
|
from fenrirscreenreader.core.remoteDriver import RemoteDriver as remoteDriver
|
|
|
|
|
|
class driver(remoteDriver):
|
|
def __init__(self):
|
|
remoteDriver.__init__(self)
|
|
|
|
def initialize(self, environment):
|
|
self.env = environment
|
|
# Use threading instead of multiprocessing to avoid pickle issues
|
|
# with self.env (which contains unpicklable file handles)
|
|
self.env["runtime"]["ProcessManager"].add_custom_event_thread(
|
|
self.watch_dog, multiprocess=False
|
|
)
|
|
|
|
def watch_dog(self, active, event_queue):
|
|
# echo "command say this is a test" | nc localhost 22447
|
|
self.fenrirSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.fenrirSock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
self.fenrirSock.settimeout(5.0) # Prevent hanging on slow clients
|
|
self.host = "127.0.0.1"
|
|
self.port = self.env["runtime"]["SettingsManager"].get_setting_as_int(
|
|
"remote", "port"
|
|
)
|
|
self.fenrirSock.bind((self.host, self.port))
|
|
self.fenrirSock.listen(1)
|
|
while active.value:
|
|
try:
|
|
r, _, _ = select.select([self.fenrirSock], [], [], 0.8)
|
|
except select.error:
|
|
break
|
|
if r == []:
|
|
continue
|
|
if self.fenrirSock in r:
|
|
client_sock, client_addr = self.fenrirSock.accept()
|
|
# Ensure client socket is always closed to prevent resource
|
|
# leaks
|
|
try:
|
|
try:
|
|
rawdata = client_sock.recv(8129)
|
|
except Exception as e:
|
|
self.env["runtime"]["DebugManager"].write_debug_out(
|
|
"tcpDriver watch_dog: Error receiving data from "
|
|
"client: "
|
|
+ str(e),
|
|
debug.DebugLevel.ERROR,
|
|
)
|
|
rawdata = b"" # Set default empty data if recv fails
|
|
|
|
try:
|
|
data = rawdata.decode("utf-8").rstrip().lstrip()
|
|
event_queue.put(
|
|
{"Type": FenrirEventType.remote_incomming, "data": data}
|
|
)
|
|
except Exception as e:
|
|
self.env["runtime"]["DebugManager"].write_debug_out(
|
|
"tcpDriver watch_dog: Error decoding/queuing data: "
|
|
+ str(e),
|
|
debug.DebugLevel.ERROR,
|
|
)
|
|
finally:
|
|
# Always close client socket, even if data processing fails
|
|
try:
|
|
client_sock.close()
|
|
except Exception as e:
|
|
self.env["runtime"]["DebugManager"].write_debug_out(
|
|
"tcpDriver watch_dog: Error closing client socket: "
|
|
+ str(e),
|
|
debug.DebugLevel.ERROR,
|
|
)
|
|
if self.fenrirSock:
|
|
self.fenrirSock.close()
|
|
self.fenrirSock = None
|