Initial commit
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from telegram.ext import Updater, MessageHandler, Filters
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import codecs
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import time
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import json
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import sys
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import os
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import threading
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# global variables
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STOP_REQUESTED = False
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# some functions that increase readability of the code
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def readfile(filename):
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try:
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return codecs.open(filename, encoding = "utf-8").read()
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except FileNotFoundError:
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return False
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except Exception as e:
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print( "[ERROR] Unexpected error occured in readfile() ({0})".format(e) )
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return False
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# module object classes
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class ModuleV1:
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def __init__(self, path, code, enabled, alias):
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self.version = 1
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self.enabled = enabled
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self.code = code
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self.alias = alias
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self.path = path
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# set environmental variables
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def set_env(self):
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self.RESPONCE = ""
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# running the module
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def process(self, msg):
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self.set_env()
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self.MESSAGE = msg
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try:
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exec(self.code)
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return self.RESPONCE
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except Exception as e:
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print("[ERROR] module: module \"{}\" ({}) raised exception \"{}\"".format(self.path, self.alias, e))
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# module control unit
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class ModuleControlUnit:
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def __init__(self):
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self.modules = []
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self.reload_modules()
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print("[INFO] ModuleControlUnit: initialized successfully")
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def reload_modules(self):
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for folder in os.listdir("modules/"):
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try:
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meta_raw = readfile("modules/{}/meta.json".format(folder))
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if not meta_raw:
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print("[WARN] module_loader: no meta.json found in module folder \"{}\"".format(folder))
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continue
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meta = json.loads( meta_raw )
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if "version" in meta:
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if meta["version"] == 1:
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if "index_file" in meta:
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index_file = meta["index_file"]
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else:
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index_file = "index.py"
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code = readfile( "modules/{}/{}".format(folder, index_file) )
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if not code: # False both when readfile() returns False and when the code string is empty
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print("[WARN] reload_modules: module {} does not have any code, skipping...".format(folder))
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continue
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if "start_on_boot" in meta:
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enabled = meta["start_on_boot"]
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else:
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enabled = False
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if "alias" in meta:
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alias = meta["alias"]
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else:
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alias = None
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self.modules.append( ModuleV1( "modules/{}/".format(folder), code, enabled, alias ) )
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print("[INFO] reload_modules: successfully loaded {} as {}".format(folder, alias))
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else:
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print("[WARN] reload_modules: module {} requires unsupported version ({} > 1), skipping...".format(folder, meta["version"]))
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except Exception as e:
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print("[ERROR] module_loader: error while loading module \"{}\" ({})".format(folder, e))
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def reload_module(self, folder_name):
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try:
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meta_raw = readfile("modules/{}/meta.json".format(folder))
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if not meta_raw:
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print("[WARN] module_loader: no meta.json found in module folder \"{}\"".format(folder_name))
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return 1
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meta = json.loads( readfile("modules/{}/meta.json".format(folder_name)) )
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if "version" in meta:
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if meta["version"] == 1:
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if "index_file" in meta:
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index_file = meta["index_file"]
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else:
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index_file = "index.py"
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code = readfile( "modules/{}/{}".format(folder_name, index_file) )
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if not code: # False both when readfile() returns False and when the code string is empty
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print("[WARN] reload_modules: module {} does not have any code, skipping...".format(folder_name))
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if "start_on_boot" in meta:
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enabled = meta["start_on_boot"]
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else:
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enabled = False
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if "alias" in meta:
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alias = meta["alias"]
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else:
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alias = None
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self.modules.append( ModuleV1( code, enabled, alias ) )
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print("[INFO] reload_modules: successfully loaded {} as {}".format(folder_name, alias))
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else:
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print("[WARN] reload_modules: module {} requires unsupported version ({} > 1), skipping...".format(folder_name, meta["version"]))
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except Exception as e:
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print("[ERROR] module_loader: error while loading module \"{}\" ({})".format(folder_name, e))
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# message queue object to go back to synchronous message processing
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#class MessageQueue:
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# def __init__(self):
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# print("[INFO] Initializing the message queue...")
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# self.queue = []
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# synchronous message processor
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def queue_processor():
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while True:
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if len(message_queue) > 0:
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msg = message_queue[0]
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print("[DEBUG] queue_processor: {}".format(msg)) # debug
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# modules will be used in here
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for mod in mcu.modules:
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if mod.enabled:
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if mod.version == 1:
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responce = mod.process(msg)
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if len(responce) > 0:
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updater.bot.send_message(chat_id = msg.chat.id, text = responce)
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print("Responded using module {} ({}) with text: {}".format(mod.path, mod.alias, responce))
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break
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del message_queue[0]
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else:
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if STOP_REQUESTED:
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break
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else:
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time.sleep(1)
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print("[INFO] queue_processor thread stops successfully")
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# telegram bot processor
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def message_handler(update, context):
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print("[DEBUG] Received new message") # just for testing
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message_queue.append(update.message)
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# --- Final stage ---
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# initializing services and queues
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message_queue = []
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mcu = ModuleControlUnit()
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processor_thread = threading.Thread( target = queue_processor, args = [] )
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processor_thread.start()
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# connecting to Telegram servers and listening for messages
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TOKEN = readfile("config/token")
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if not TOKEN:
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print("[CRIT] Token has not been defined, quitting")
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sys.exit(1)
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# connect to Telegram servers
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updater = Updater(TOKEN, use_context = True)
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dispatcher = updater.dispatcher
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# assign the handler for messages
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dispatcher.add_handler(MessageHandler(Filters.text, message_handler))
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# run the bot
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updater.start_polling()
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updater.idle()
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@ -0,0 +1 @@
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self.RESPONCE = self.MESSAGE["text"]
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@ -0,0 +1,5 @@
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{
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"version": 1,
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"index_file": "index.py",
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"start_on_boot": true
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}
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