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'''
Handles the requests made to clients, including
interval, autotasks, terminal & GUI. These are
correctly interpreted to specific formats &
is the foundation of the program.
Verified: 2021 February 8
* Follows PEP8
* Tested Platforms
* Windows 10
* Third Party Modules
* eel
'''
from server.state import ServerStatic, Dynamic
from server.controller import Controller
from server.helper import ServerHelper
from server.settings import Settings
from server.console import Console
from shared.helper import Helper
from shared.state import Static
from shared.data import Data
import threading
import traceback
import queue
import os
if not ServerStatic.TERMINAL:
import eel
class Request:
__LOADING_AMID_LENGTH = len(ServerStatic.LOADING_AMID)
__AUTOTASK_FN = 'autotasks.txt'
__LOCK = threading.Lock()
def __init__(self, message, loading=ServerStatic.LOADING,
ret=False, callback=None, args=(), custom=None):
self.__queue = queue.Queue()
self.__message = message
self.__loading = loading
self.__callback = callback
self.__args = args
if custom is None:
self.__clients = [(unique_id, Dynamic.CLIENTS[unique_id])
for unique_id in Dynamic.SESSION]
self.__autotask = False
self.__interval = False
self.__ret = ret
if not self.__ret:
self.__first_stdout = True
else:
self.__clients = [(unique_id, Dynamic.CLIENTS[unique_id])
for unique_id in custom[0]]
self.__autotask = custom[1]
self.__interval = not self.__autotask
self.__ret = False
if self.__ret:
self.__responses = []
self.__html = False
def send(self):
if any((self.__ret, self.__autotask, self.__interval)):
self.__employ_workers()
self.__create_jobs()
if self.__ret:
if self.__html:
return dict(html=True,
message=Helper.join(
*self.__responses))
else:
return Helper.join(*self.__responses)
else:
with Console.LOCK:
Console.printf(self.__loading, raw=True,
loading=True, lock=False)
self.__employ_workers()
self.__create_jobs()
Console.printf(raw=True, lock=False)
def __employ_workers(self):
for _ in self.__clients:
Helper.thread(self.__worker)
def __create_jobs(self):
for client in self.__clients:
self.__queue.put(client)
self.__queue.join()
def __worker(self):
try:
unique_id, client = self.__queue.get()
response = self.__execute_request(unique_id, client)
if self.__ret:
self.__responses.append(
self.__main_response(unique_id, client, response))
elif self.__autotask:
dirpath = os.path.join(ServerStatic.ARCHIVE_DIR,
client.connect_ip.safe)
if not os.path.isdir(dirpath):
os.makedirs(dirpath, exist_ok=True)
Helper.write_file(
os.path.join(dirpath, Request.__AUTOTASK_FN),
'AUTOTASK ACTION: [ {} {} ]\n{}\n'.format(
self.__message['message'], ServerStatic.LOADING_AMID,
self.__main_response(unique_id, client, response)))
elif self.__interval:
if not ServerStatic.TERMINAL:
if eel._websockets != []:
if Settings.GUI_UPDATE:
response.update(dict(unique_id=unique_id))
eel.activityUpdateEel(response)
else:
with Request.__LOCK:
if self.__first_stdout:
self.__first_stdout = False
Console.printf(ServerHelper.repeat(
len(self.__loading)), raw=True,
loading=True, lock=False)
else:
Console.printf(ServerHelper.repeat(
Request.__LOADING_AMID_LENGTH),
raw=True, loading=True, lock=False)
self.__main_response(unique_id, client, response)
Console.printf(ServerStatic.LOADING_AMID,
raw=True, loading=True,
newline=True, lock=False)
if self.__callback:
if 'custom' in response:
self.__callback(client.connect_ip, unique_id,
response['custom'], *self.__args)
except Exception:
Console.log(traceback.format_exc(),
log_type=ServerStatic.TRACEBACK)
finally:
self.__queue.task_done()
def __main_response(self, unique_id, client, response):
prefix = 'Response: {} {} {}'.format(client.connect_ip.pure,
ServerStatic.SEPERATOR,
unique_id)
message = response['message']
table = type(message) is list
try:
if message:
if table:
table_response = Console.tabulate(
*message, self.__ret, self.__autotask, f'{prefix}\n')
if self.__ret:
if not self.__html:
self.__html = True
return table_response
else:
return Console.printf(
f'{prefix}\n{message}', **response['headers'],
ret=self.__ret or self.__autotask, lock=False)
else:
return Console.printf(
f'{prefix}\nEmpty Response\n', Static.INFO, False,
ret=self.__ret or self.__autotask, lock=False)
except Exception:
Console.log('Response Handling Error\n',
Static.DANGER, ServerStatic.ACTION)
Console.log(traceback.format_exc(),
log_type=ServerStatic.TRACEBACK)
return Console.printf(
f'{prefix}\nResponse Handling Error', Static.DANGER,
False, ret=self.__ret or self.__autotask, lock=False)
def __execute_request(self, unique_id, client):
try:
Data.send(client.socket, self.__message)
response = Data.recv(client.socket, True)
return response
except Exception:
Console.log('Request Execution Errror\n',
Static.DANGER, ServerStatic.ACTION)
Console.log(traceback.format_exc(),
log_type=ServerStatic.TRACEBACK)
try:
Controller.delete_client(unique_id)
except Exception:
Console.log(traceback.format_exc(),
log_type=ServerStatic.TRACEBACK)
finally:
return Data.parse(Helper.join(
'Timeout / error emerged awaiting client response',
'Client disconnected & removed from active session'
), status=Static.DANGER)
|
