Change Directory

librespot/common/Utils.py

@@ -0,0 +1,42 @@
+import binascii
+import os
+
+
+class Utils:
+    @staticmethod
+    def random_hex_string(length: int):
+        buffer = os.urandom(int(length / 2))
+        return Utils.bytes_to_hex(buffer)
+
+    @staticmethod
+    def truncate_middle(s: str, length: int) -> str:
+        if length <= 1:
+            raise TypeError()
+
+        first = length / 2
+        result = s[:first]
+        result += "..."
+        result += s[len(s) - (length - first):]
+        return result
+
+    @staticmethod
+    def split(s: str, c: str):
+        return s.split(c)
+
+    @staticmethod
+    def to_byte_array(i: int) -> bytes:
+        width = i.bit_length()
+        width += 8 - ((width % 8) or 8)
+        fmt = '%%0%dx' % (width // 4)
+        if i == 0:
+            return bytes([0])
+        else:
+            return binascii.unhexlify(fmt % i)
+
+    @staticmethod
+    def bytes_to_hex(buffer: bytes) -> str:
+        return binascii.hexlify(buffer).decode()
+
+    @staticmethod
+    def hex_to_bytes(s: str) -> bytes:
+        return binascii.unhexlify(s)