tdlight/example/python/tdjson_example.py

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#
# Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
from ctypes.util import find_library
from ctypes import *
import json
import sys
# load shared library
tdjson_path = find_library("tdjson") or "tdjson.dll"
if tdjson_path is None:
print('can\'t find tdjson library')
quit()
tdjson = CDLL(tdjson_path)
# load TDLib functions from shared library
td_json_client_create = tdjson.td_json_client_create
td_json_client_create.restype = c_void_p
td_json_client_create.argtypes = []
td_json_client_receive = tdjson.td_json_client_receive
td_json_client_receive.restype = c_char_p
td_json_client_receive.argtypes = [c_void_p, c_double]
td_json_client_send = tdjson.td_json_client_send
td_json_client_send.restype = None
td_json_client_send.argtypes = [c_void_p, c_char_p]
td_json_client_execute = tdjson.td_json_client_execute
td_json_client_execute.restype = c_char_p
td_json_client_execute.argtypes = [c_void_p, c_char_p]
td_json_client_destroy = tdjson.td_json_client_destroy
td_json_client_destroy.restype = None
td_json_client_destroy.argtypes = [c_void_p]
td_set_log_file_path = tdjson.td_set_log_file_path
td_set_log_file_path.restype = c_int
td_set_log_file_path.argtypes = [c_char_p]
td_set_log_max_file_size = tdjson.td_set_log_max_file_size
td_set_log_max_file_size.restype = None
td_set_log_max_file_size.argtypes = [c_longlong]
td_set_log_verbosity_level = tdjson.td_set_log_verbosity_level
td_set_log_verbosity_level.restype = None
td_set_log_verbosity_level.argtypes = [c_int]
fatal_error_callback_type = CFUNCTYPE(None, c_char_p)
td_set_log_fatal_error_callback = tdjson.td_set_log_fatal_error_callback
td_set_log_fatal_error_callback.restype = None
td_set_log_fatal_error_callback.argtypes = [fatal_error_callback_type]
# initialize TDLib log with desired parameters
def on_fatal_error_callback(error_message):
print('TDLib fatal error: ', error_message)
td_set_log_verbosity_level(2)
c_on_fatal_error_callback = fatal_error_callback_type(on_fatal_error_callback)
td_set_log_fatal_error_callback(c_on_fatal_error_callback)
# create client
client = td_json_client_create()
# simple wrappers for client usage
def td_send(query):
query = json.dumps(query).encode('utf-8')
td_json_client_send(client, query)
def td_receive():
result = td_json_client_receive(client, 1.0)
if result:
result = json.loads(result.decode('utf-8'))
return result
def td_execute(query):
query = json.dumps(query).encode('utf-8')
result = td_json_client_execute(client, query)
if result:
result = json.loads(result.decode('utf-8'))
return result
# testing TDLib execute method
print(td_execute({'@type': 'getTextEntities', 'text': '@telegram /test_command https://telegram.org telegram.me', '@extra': ['5', 7.0]}))
# testing TDLib send method
td_send({'@type': 'getAuthorizationState', '@extra': 1.01234})
# main events cycle
while True:
event = td_receive()
if event:
# if client is closed, we need to destroy it and create new client
if event['@type'] is 'updateAuthorizationState' and event['authorization_state']['@type'] is 'authorizationStateClosed':
break
# handle an incoming update or an answer to a previously sent request
print(event)
sys.stdout.flush()
# destroy client when it is closed and isn't needed anymore
td_json_client_destroy(client)