1 files changed, 56 insertions, 11 deletions

diff --git a/include/py/homekit/util.py b/include/py/homekit/util.py
index 22bba86..2b06600 100644
--- a/include/py/homekit/util.py
+++ b/include/py/homekit/util.py
@@ -9,6 +9,8 @@ import logging
 import string
 import random
 import re
+import os
+import ipaddress
 
 from enum import Enum
 from datetime import datetime
@@ -36,6 +38,14 @@ def validate_ipv4_or_hostname(address: str, raise_exception: bool = False) -> bo
         return False
 
 
+def validate_ipv4(address: str) -> bool:
+    try:
+        ipaddress.IPv6Address(address)
+        return True
+    except ipaddress.AddressValueError:
+        return False
+
+
 def validate_mac_address(mac_address: str) -> bool:
     mac_pattern = r'^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$'
     if re.match(mac_pattern, mac_address):
@@ -52,17 +62,21 @@ class Addr:
         self.host = host
         self.port = port
 
-    @staticmethod
-    def fromstring(addr: str) -> Addr:
-        colons = addr.count(':')
-        if colons != 1:
-            raise ValueError('invalid host:port format')
-
-        if not colons:
-            host = addr
-            port = None
+    @classmethod
+    def fromstring(cls, addr: str, port_required=True) -> Addr:
+        if port_required:
+            colons = addr.count(':')
+            if colons != 1:
+                raise ValueError('invalid host:port format')
+
+            if not colons:
+                host = addr
+                port = None
+            else:
+                host, port = addr.split(':')
         else:
-            host, port = addr.split(':')
+            port = None
+            host = addr
 
         validate_ipv4_or_hostname(host, raise_exception=True)
 
@@ -73,12 +87,19 @@ class Addr:
 
         return Addr(host, port)
 
+    @classmethod
+    def fromipstring(cls, addr: str) -> Addr:
+        return cls.fromstring(addr, port_required=False)
+
     def __str__(self):
         buf = self.host
         if self.port is not None:
             buf += ':'+str(self.port)
         return buf
 
+    def __repr__(self):
+        return self.__str__()
+
     def __iter__(self):
         yield self.host
         yield self.port
@@ -243,6 +264,24 @@ def filesize_fmt(num, suffix="B") -> str:
     return f"{num:.1f} Yi{suffix}"
 
 
+def seconds_to_human_readable_string(seconds: int) -> str:
+    days, remainder = divmod(seconds, 86400)
+    hours, remainder = divmod(remainder, 3600)
+    minutes, seconds = divmod(remainder, 60)
+
+    parts = []
+    if days > 0:
+        parts.append(f"{int(days)} day{'s' if days > 1 else ''}")
+    if hours > 0:
+        parts.append(f"{int(hours)} hour{'s' if hours > 1 else ''}")
+    if minutes > 0:
+        parts.append(f"{int(minutes)} minute{'s' if minutes > 1 else ''}")
+    if seconds > 0:
+        parts.append(f"{int(seconds)} second{'s' if seconds > 1 else ''}")
+
+    return ' '.join(parts)
+
+
 class HashableEnum(Enum):
     def hash(self) -> int:
         return adler32(self.name.encode())
@@ -252,4 +291,10 @@ def next_tick_gen(freq):
     t = time.time()
     while True:
         t += freq
-        yield max(t - time.time(), 0)
\ No newline at end of file
+        yield max(t - time.time(), 0)
+
+
+def homekit_path(*args) -> str:
+    return os.path.realpath(
+        os.path.join(os.path.dirname(__file__), '..', '..', '..', *args)
+    )