Adding mw40v APi client

README.md

@@ -1,2 +1,15 @@
-# network-roaming
+# Network Roaming
 
+Api that allows to switch a router from landline to 4G and back 
+
+## Alcatel MW40V configuration
+
+### Find the encryption key
+in default.html:
+
+```<meta name="header-meta" content="here_is_the_encryption_key">```
+
+### Find the verification key
+in js/sdk.js:
+
+```headers['_TclRequestVerificationKey'] = "here_is_the_verification_keys";```

main.py

@@ -9,6 +9,8 @@ import configparser
 from fastapi import FastAPI, Depends, HTTPException, status
 from fastapi.security import HTTPBasic, HTTPBasicCredentials
 
+from mw40v import Mw40V
+
 app = FastAPI()
 
 security = HTTPBasic()
@@ -20,9 +22,38 @@ ON_FILENAME = 'dhcpcd-usb-on.conf'
 OFF_FILENAME = 'dhcpcd-usb-off.conf'
 
 
+class Config:
+    config = None
+
+    @classmethod
+    def get(cls):
+        if cls.config is None:
+            cls.config = configparser.ConfigParser()
+            cls.config.read('./config.ini')
+
+        return cls.config
+
+
+class AirModem:
+    airModem = None
+
+    @classmethod
+    def get(cls):
+        if cls.airModem is None:
+            config = Config.get()
+
+            cls.airModem = Mw40V(
+                config['MW40V']['username'],
+                config['MW40V']['password'],
+                config['MW40V']['encrypt_key'],
+                config['MW40V']['verification_key'],
+            )
+
+        return cls.airModem
+
+
 def get_username(credentials: Annotated[HTTPBasicCredentials, Depends(security)]):
-    config = configparser.ConfigParser()
-    config.read('./config.ini')
+    config = Config.get()
 
     if credentials.username != config['credentials']['username']:
         raise_unauthorized()
@@ -65,13 +96,10 @@ def is_usb_on():
 
 def switch_status(turn_on):
     if turn_on:
-        # call usb modem api to turn it on
         update_usb_modem(turn_on)
-
         update_dhcp_conf(turn_on)
-
-    if not turn_on:
-        # call usb modem api to turn it off
+    else:
+        update_dhcp_conf(turn_on)
         update_usb_modem(turn_on)
 
 
@@ -82,21 +110,37 @@ def update_dhcp_conf(turn_on):
 
 
 def update_usb_modem(turn_on):
-    pass
+    if turn_on:
+        AirModem.get().connect()
+    else:
+        AirModem.get().disconnect()
 
 
 def initialize_app():
     script_dir = Path(__file__).parent.absolute()
     credentials_file_path = str(script_dir) + '/config.ini'
     if not os.path.isfile(credentials_file_path):
-        username = input("Enter a username")
-        password = input("Enter a password")
 
         config = configparser.ConfigParser()
+
+        username = input("Enter a username for the API")
+        password = input("Enter a password for the API")
         config['credentials'] = {
             'username': username,
             'password_hash': PasswordHasher().hash(password)
         }
+
+        username = input("Enter the username for MW40V")
+        password = input("Enter the password for MW40V")
+        encrypt_key = input("Enter the encrypt_key for MW40V")
+        verification_key = input("Enter the verification_key for MW40V")
+        config['MW40V'] = {
+            'username': username,
+            'password': PasswordHasher().hash(password),
+            'encrypt_key': encrypt_key,
+            'verification_key': verification_key
+        }
+
         with open(credentials_file_path, 'w') as configfile:
             config.write(configfile)
 

mw40v.py

@@ -0,0 +1,87 @@
+
+import requests
+import json
+
+
+class Mw40V:
+    def __init__(self, username, password, encrypt_key, verification_key):
+        self.username = username
+        self.password = password
+        self.encrypt_key = encrypt_key
+        self.verification_key = verification_key
+        self.login_token = None
+
+    def request(self, method, params, id):
+        body = {
+            "jsonrpc": "2.0",
+            "method": method,
+            "params": params,
+            "id": id
+        }
+
+        r = requests.post(
+            f"http://bbox.nomad/jrd/webapi?api={method}",
+            data=json.dumps(body),
+            headers=self.headers(method)
+        )
+
+        return r.json()['result']
+
+    def headers(self, method):
+        return {
+            'Referer': 'http://bbox.nomad/index.html',
+            '_TclRequestVerificationKey': self.verification_key,
+            '_TclRequestVerificationToken': self.encrypt(str(self.login_token)) or "null"
+        }
+
+    def login(self, user, password):
+        result = self.request(
+            "Login",
+            {
+                "UserName": self.encrypt(user),
+                "Password": self.encrypt(password)
+            },
+            "1.1"
+        )
+
+        if 'token' not in result:
+            raise Exception("Error while login to nomad bbox")
+
+        self.login_token = result['token']
+
+    def connect(self):
+        self.login(self.username, self.password)
+        result = self.request(
+            "Connect",
+            None,
+            "3.2"
+        )
+
+        return result
+
+    def disconnect(self):
+        self.login(self.username, self.password)
+        result = self.request(
+            "DisConnect",
+            None,
+            "3.3"
+        )
+
+        return result
+
+    def encrypt(self, subject):
+        if not str:
+            return ""
+
+        subject = str(subject)
+        result_list = []
+        for i, char_i in enumerate(subject):
+            num_char_i = ord(char_i)
+            x = (ord(self.encrypt_key[i % len(self.encrypt_key)]) & 0xf0) \
+                | ((num_char_i & 0xf) ^ (ord(self.encrypt_key[i % len(self.encrypt_key)]) & 0xf))
+            y = (ord(self.encrypt_key[i % len(self.encrypt_key)]) & 0xf0) \
+                | ((num_char_i >> 4) ^ (ord(self.encrypt_key[i % len(self.encrypt_key)]) & 0xf))
+            result_list.append(chr(x))
+            result_list.append(chr(y))
+
+        return ''.join(result_list)

requirements.txt

@@ -1,3 +1,4 @@
 fastapi
 uvicorn
 argon2-cffi
+requests