commit 505a53653fb87c351170a1d7a045130a08994792
Author: jowi-tech <72805812+jowi-tech@users.noreply.github.com>
Date:   Sun Jan 31 14:23:27 2021 +0100

    Add files via upload

diff --git a/Telegram_phone_validation.py b/Telegram_phone_validation.py
new file mode 100644
index 0000000..af90e87
--- /dev/null
+++ b/Telegram_phone_validation.py
@@ -0,0 +1,56 @@
+#!/usr/local/bin/python3
+from telethon import TelegramClient, events, sync
+from telethon.tl.types import InputPhoneContact
+from telethon import functions, types
+
+result = {}
+
+PHONE_NUMBER = '+31682321057'
+API_ID = 2551274
+API_HASH = '2e026c92beed662f859144ab5442efcd'
+
+def get_names(phone_number):
+    try:
+        contact = InputPhoneContact(client_id = 0, phone = phone_number, first_name="__test__", last_name="__last_test__")
+        contacts = client(functions.contacts.ImportContactsRequest([contact]))
+        #first_name = contacts.to_dict()['users'][0]['first_name']
+        #last_name = contacts.to_dict()['users'][0]['last_name']
+        username = contacts.to_dict()['users'][0]['username']
+        del_usr = client(functions.contacts.DeleteContactsRequest(id=[username]))
+        if not username:
+            return f'No user name returned by the API for the number: {phone_number}'
+        else:
+            return username
+    except IndexError as e:
+        #err = "ERROR - maybe the user does not exist or something else went wrong."
+        return f'ERROR: there was no response for the phone number: {phone_number}'
+    except:
+        raise
+
+
+def user_validator():
+    '''
+    The function uses the get_api_response function to first check if the user exists and if it does, then it returns the first user name and the last user name.
+    '''
+    input_phones = input("Phone numbers: ")
+    phones = input_phones.split()
+    try:
+        for phone in phones:
+            api_res = get_names(phone)
+            result[phone] = api_res
+            #if type(api_res) == tuple:
+            #    result[phone] = { 'first name' : api_res[0], 'last name' : api_res[1] }
+            #else: 
+            #    result[phone] = api_res
+    except:
+        raise
+            
+
+if __name__ == '__main__':
+    client = TelegramClient(PHONE_NUMBER, API_ID, API_HASH)
+    client.connect()
+    if not client.is_user_authorized():
+        client.send_code_request(PHONE_NUMBER)
+        client.sign_in(PHONE_NUMBER, input('Enter the code (sent on telegram): '))
+    user_validator()
+    print(result)