Added feature for validating addresses

README.md

@@ -77,6 +77,9 @@ pip install jeb-utils --index-url https://repo.jcloud-services.ddns.net/simple/
 - `create_file_if_not_exists`: Creates a file if it does not exist.
 
 ## Changelog
+### Version 0.2.1
+- Added feature for validating addresses.
+
 ### Version 0.2.0
 - Removed all the functions and classes that are now in jeb-server-utils. 
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "jeb-utils"
-version = "0.2.0"
+version = "0.2.1"
 description = "Common utils for JEB client and server."
 dependencies = ["cryptography"]
 license = "Apache-2.0"

src/jeb_utils/utils.py

@@ -14,6 +14,8 @@
 
 import os
 from typing import Tuple, Literal, Sequence
+import ipaddress
+import socket
 
 __all__ = [
     'is_number',
@@ -153,4 +155,50 @@ def create_file_if_not_exists(path: str, content: bytes = b''):
     if not os.path.exists(path):
         with open(path, 'wb') as f:
             f.write(content)
-            f.close()
+            f.close()
+
+def is_valid_host(host: str) -> bool:
+    '''
+    Checks whether the host is a valid IP address.
+    
+    :param host: The host
+    :type host: str
+    
+    :return: ``True`` if the host is a valid IP address, otherwise ``False``
+    :rtype: bool
+    '''
+    try:
+        ipaddress.ip_address(host)
+        return True
+    except ValueError:
+        pass
+
+def is_valid_port(port: str) -> bool:
+    '''
+    Checks whether the port is a valid port number.
+
+    :param port: The port
+    :type port: str
+
+    :return: ``True`` if the port is a valid port number, otherwise ``False``
+    :rtype: bool
+    '''
+    if not port.isdigit():
+        return False
+    port_num = int(port)
+    return 1 <= port_num <= 65535
+
+def validate_address_port(addr: str) -> bool:
+    if ':' not in addr:
+        return False
+    
+    if addr.startswith('['):
+        try:
+            host, port = addr.rsplit(']:', 1)
+            host = host[1:]
+        except ValueError:
+            return False
+    else:
+        host, port = addr.rsplit(':', 1)
+    
+    return is_valid_host(host) and is_valid_port(port)