Added json validation of formats to check IPv4

refactored files and calls to be api_server
worked down satisfying review comments of last commit

freqtrade/configuration.py

@@ -6,7 +6,7 @@ import json
 import logging
 from argparse import Namespace
 from typing import Optional, Dict, Any
-from jsonschema import Draft4Validator, validate
+from jsonschema import Draft4Validator, validate, draft4_format_checker
 from jsonschema.exceptions import ValidationError, best_match
 import ccxt
 
@@ -202,7 +202,7 @@ class Configuration(object):
         :return: Returns the config if valid, otherwise throw an exception
         """
         try:
-            validate(conf, constants.CONF_SCHEMA)
+            validate(conf, constants.CONF_SCHEMA, format_checker=draft4_format_checker)
             return conf
         except ValidationError as exception:
             logger.critical(
@@ -210,7 +210,9 @@ class Configuration(object):
                 exception
             )
             raise ValidationError(
-                best_match(Draft4Validator(constants.CONF_SCHEMA).iter_errors(conf)).message
+                best_match(Draft4Validator(constants.CONF_SCHEMA,
+                                           format_checker=draft4_format_checker)
+                           .iter_errors(conf)).message
             )
 
     def get_config(self) -> Dict[str, Any]:

freqtrade/constants.py

@@ -92,6 +92,19 @@ CONF_SCHEMA = {
             },
             'required': ['enabled', 'token', 'chat_id']
         },
+        'api_server': {
+            'type': 'object',
+            'properties': {
+                'enabled': {'type': 'boolean'},
+                'listen_ip_address': { "format": "ipv4"},
+                'listen_port': {
+                    'type': 'integer',
+                    "minimum": 1024,
+                    "maximum": 65535
+                },
+            },
+            'required': ['enabled', 'listen_ip_address', 'listen_port']
+        },
         'db_url': {'type': 'string'},
         'initial_state': {'type': 'string', 'enum': ['running', 'stopped']},
         'internals': {

freqtrade/rpc/api_server.py

@@ -6,26 +6,25 @@ from flask import Flask, request
 from flask_restful import Resource, Api
 from json import dumps
 from freqtrade.rpc.rpc import RPC, RPCException
+from ipaddress import IPv4Address
 
 
 logger = logging.getLogger(__name__)
+app = Flask(__name__)
 
-class LocalRestSuperWrap(RPC):
+class ApiServerSuperWrap(RPC):
     """
-    This class is for REST cmd line client
+    This class is for REST calls across api server
     """
     def __init__(self, freqtrade) -> None:
         """
-        Init the LocalRestServer call, and init the super class RPC
+        Init the api server, and init the super class RPC
         :param freqtrade: Instance of a freqtrade bot
         :return: None
         """
         super().__init__(freqtrade)
-        """ Constructor
+
-        :type interval: int
+        self.interval = 1
-        :param interval: Check interval, in seconds
-        """
-        self.interval = int(1)
 
         thread = threading.Thread(target=self.run, args=(freqtrade,)) # extra comma as ref ! Tuple
         thread.daemon = True                            # Daemonize thread
@@ -35,7 +34,6 @@ class LocalRestSuperWrap(RPC):
     def run(self, freqtrade):
         """ Method that runs forever """
         self._config = freqtrade.config
-        app = Flask(__name__)
 
         """
         Define the application routes here
@@ -97,17 +95,14 @@ class LocalRestSuperWrap(RPC):
         Section to handle configuration and running of the Rest serve
         also to check and warn if not bound to 127.0.0.1 as a security risk.
         """
+        rest_ip = self._config['api_server']['listen_ip_address']
+        rest_port = self._config['api_server']['listen_port']
 
-        rest_ip = self._config['rest_cmd_line']['listen_ip_address']
+        if not IPv4Address(rest_ip).is_loopback :
-        rest_port = self._config['rest_cmd_line']['listen_port']
+            logger.info("SECURITY WARNING - Local Rest Server listening to external connections")
-
+            logger.info("SECURITY WARNING - This is insecure please set to your loopback, e.g 127.0.0.1 in config.json")
-        if rest_ip != "127.0.0.1":
-            i=0
-            while i < 10:
-                logger.info("SECURITY WARNING - Local Rest Server listening to external connections")
-                logger.info("SECURITY WARNING - This is insecure please set to 127.0.0.1 in config.json")
-                i += 1
 
         # Run the Server
         logger.info('Starting Local Rest Server')
         app.run(host=rest_ip, port=rest_port)
+