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HerokuS3FullRam.py
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HerokuS3FullRam.py
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from os import environ, mkdir, path, remove
from telegram.ext import Updater
import langdetect
import random
import boto3
import json
import time
from Chat import *
LANG_TO_VOICE = {
'af': 'Ruben', # redirect Afrikaans to Dutch
'ar': 'Zeina',
'bg': 'Maxim', # redirect Bulgarian to Russian
'ca': 'Arlet',
'cs': 'Jacek', # redirect Czech to Polish
'cy': 'Gwyneth',
'da': 'Mads',
'de': 'Hans',
'en': 'Joey',
'es': 'Miguel',
'et': 'Suvi', # redirect Estonian to Finnish
'fa': 'Zeina', # redirect Farsi to Arabic
'fi': 'Suvi',
'fr': 'Mathieu',
'hi': 'Aditi',
'hr': 'Jacek', # redirect Croatian to Polish
'is': 'Karl',
'it': 'Giorgio',
'ja': 'Takumi',
'ko': 'Seoyeon',
'mk': 'Maxim', # redirect Macedonian to Russian
'mr': 'Aditi', # redirect Marathi to Hindi
'nb': 'Liv',
'ne': 'Aditi', # redirect Nepali to Hindi
'nl': 'Ruben',
'no': 'Liv',
'pl': 'Jacek',
'pt': 'Ricardo',
'ro': 'Carmen',
'ru': 'Maxim',
'sl': 'Jacek', # redirect Slovene to Polish
'sk': 'Jacek', # redirect Slovak to Polish
'sv': 'Astrid',
'tr': 'Filiz',
'uk': 'Maxim', # redirect Ukrainian to Russian
'zh-cn': 'Zhiyu',
'zh-tw': 'Zhiyu'
}
""" This class handles data storage and synchronization (FullRam edition) """
class HerokuS3FullRam:
def __init__(self, logger):
self.chats = dict() # key = chat_id --- value = object Chat
self.OTPs = dict() # chats ready to be transfered: key = OTP [string] --- value = chat_id [integer]
self.last_sync = time.time() # for automatic serialization on database
self.HEROKU_APP_NAME = environ.get("HEROKU_APP_NAME")
self.PORT = int(environ.get("PORT", "8443"))
self.AWS_ACCESS_KEY_ID = environ.get("AWS_ACCESS_KEY_ID")
self.AWS_SECRET_ACCESS_KEY = environ.get("AWS_SECRET_ACCESS_KEY")
self.REGION_NAME = environ.get("REGION_NAME")
self.S3_BUCKET_NAME = environ.get("S3_BUCKET_NAME")
self.CHAT_MAX_DURATION = 7776000 # seconds in three months
self.CHAT_UPDATE_TIMEOUT = 666 # 37 % of 30 minutes
self.WORD_LIST_MAX_LENGTH = 16384
self.logger = logger
def get_chat_from_id(self, chat_id):
try:
chat = self.chats[chat_id]
except:
chat = Chat(self)
self.chats[chat_id] = chat
chat.last_update = time.time()
self.logger.info("RAM: {} - DISK: N/A - NETWORK: N/A".format(len(self.chats)))
return chat
def synchronize(self):
now = time.time()
if now - self.last_sync > self.CHAT_UPDATE_TIMEOUT: # 37% rule
self.delete_old_chats()
self.thanos_big_chats()
self.store_db()
self.OTPs.clear()
self.last_sync = now
def load_db(self):
try:
s3_client = boto3.client("s3", aws_access_key_id=self.AWS_ACCESS_KEY_ID, aws_secret_access_key=self.AWS_SECRET_ACCESS_KEY, region_name=self.REGION_NAME)
dump = s3_client.get_object(Bucket=self.S3_BUCKET_NAME, Key="dump.txt")
data = dump['Body'].read()
self.unjsonify(data)
except Exception as e:
# cold start: 'dump.txt' does not exist yet
self.logger.warning("Database not found: executing cold start")
data = '{}'
return data
def store_db(self):
data = self.jsonify()
s3_client = boto3.client("s3", aws_access_key_id=self.AWS_ACCESS_KEY_ID, aws_secret_access_key=self.AWS_SECRET_ACCESS_KEY, region_name=self.REGION_NAME)
s3_client.put_object(Body=data.encode(), Bucket=self.S3_BUCKET_NAME, Key="dump.txt")
return data
def jsonify(self):
jsonification = dict()
for chat_id in self.chats:
jsonification[chat_id] = str(self.chats[chat_id])
data = json.dumps(jsonification, indent=2)
return data
def unjsonify(self, data):
chats_tmp = json.loads(data)
for chat_id in chats_tmp:
jsonized_chat = json.loads(chats_tmp[chat_id])
deserialized_chat = Chat(self)
deserialized_chat.torrent_level = jsonized_chat.get("torrent_level", DEFAULT_TORRENT_LEVEL())
deserialized_chat.is_learning = jsonized_chat.get("is_learning", DEFAULT_IS_LEARNING())
deserialized_chat.model = jsonized_chat.get("model", DEFAULT_MODEL())
deserialized_chat.stickers = jsonized_chat.get("stickers", DEFAULT_STICKERS())
deserialized_chat.animations = jsonized_chat.get("animations", DEFAULT_ANIMATIONS())
deserialized_chat.flagged_media = set(jsonized_chat.get("flagged_media", DEFAULT_FLAGGED_MEDIA()))
deserialized_chat.last_update = jsonized_chat.get("last_update", DEFAULT_LAST_UPDATE())
deserialized_chat.restricted_mode = jsonized_chat.get("restricted_mode", DEFAULT_RESTRICTED_MODE())
self.chats[int(chat_id)] = deserialized_chat
def delete_old_chats(self):
now = time.time()
for chat_id in list(self.chats.keys()):
if now - self.chats[chat_id].last_update > self.CHAT_MAX_DURATION:
del self.chats[chat_id]
def thanos_big_chats(self):
for chat_id in list(self.chats.keys()):
if len(self.chats[chat_id].model) > self.WORD_LIST_MAX_LENGTH:
self.chats[chat_id].halve()
self.chats[chat_id].clean()
def download_chat(self, chat, chat_id):
data = str(chat)
filename = str(chat_id) + ".txt"
with open(filename, "w") as dump:
dump.write(data)
return filename
def delete_chat(self, chat_id):
del self.chats[chat_id]
def transmit_chat(self, tx_chat_id):
OTP = ''.join([random.choice("0123456789ABCDEF") for i in range(8)])
self.OTPs[OTP] = tx_chat_id
return OTP
def receive_chat(self, rx_chat_id, OTP):
tx_chat_id = self.OTPs.get(OTP, 0)
if tx_chat_id == 0:
return False
tx = self.chats[tx_chat_id]
rx = Chat(self)
rx.torrent_level = tx.torrent_level
rx.is_learning = tx.is_learning
rx.model = {key: value[:] for key, value in tx.model.items()}
rx.stickers = tx.stickers[:]
rx.animations = tx.animations[:]
rx.flagged_media = tx.flagged_media.copy()
rx.last_update = tx.last_update
rx.restricted_mode = tx.restricted_mode
self.chats[rx_chat_id] = rx
del self.OTPs[OTP]
return True
def text_to_speech(self, text):
try:
candidates = langdetect.detect_langs(text)
winner = random.choice(candidates).lang
voice = LANG_TO_VOICE[winner]
except Exception as e:
# language detection unsuccessful or unsupported language
self.logger.error("Exception occurred: {}".format(e))
# fallback to Italian
voice = LANG_TO_VOICE['it']
try:
polly_client = boto3.client("polly", aws_access_key_id=self.AWS_ACCESS_KEY_ID, aws_secret_access_key=self.AWS_SECRET_ACCESS_KEY, region_name=self.REGION_NAME)
response = polly_client.synthesize_speech(VoiceId=voice,
OutputFormat='mp3',
Text=text)
except Exception as e:
# log some kind of error from AWS
self.logger.error("Exception occurred: {}".format(e))
return ""
with open("audio.mp3", "wb") as audio:
audio.write(response['AudioStream'].read())
return "audio.mp3"
def start(self, updater):
#updater.start_polling()
# Run the bot until you press Ctrl-C or the process receives SIGINT,
# SIGTERM or SIGABRT. This should be used most of the time, since
# start_polling() is non-blocking and will stop the bot gracefully.
#updater.idle()
updater.start_webhook(listen="0.0.0.0",
port=self.PORT,
url_path=Global.BOT_TOKEN,
webhook_url="https://{}.herokuapp.com/{}".format(self.HEROKU_APP_NAME, Global.BOT_TOKEN),
allowed_updates=["message", "channel_post", "my_chat_member"],
drop_pending_updates=True)
time.sleep(0.1)
updater.bot.set_webhook(url="https://{}.herokuapp.com/{}".format(self.HEROKU_APP_NAME, Global.BOT_TOKEN),
max_connections=100,
allowed_updates=["message", "channel_post", "my_chat_member"],
drop_pending_updates=True)
def get_updater(self):
return Updater(Global.BOT_TOKEN)