+ Resolved conflicting dependencies by downgrading to construct 2.8.8

pyplayready/__init__.py

@@ -10,4 +10,4 @@ from .session import *
 from .xml_key import *
 from .xmrlicense import *
 
-__version__ = "0.3.6"
+__version__ = "0.3.7"

pyplayready/bcert.py

@@ -1,4 +1,9 @@
 from __future__ import annotations
+import collections.abc
+
+# monkey patch for construct 2.8.8 compatibility
+if not hasattr(collections, 'Sequence'):
+    collections.Sequence = collections.abc.Sequence
 
 import base64
 from pathlib import Path

pyplayready/pssh.py

@@ -2,7 +2,7 @@ import base64
 from typing import Union
 from uuid import UUID
 
-from construct import Struct, Int32ul, Int16ul, Array, this, Bytes, PaddedString, Switch, Int32ub, Const, Container
+from construct import Struct, Int32ul, Int16ul, Array, this, Bytes, Switch, Int32ub, Const, Container
 
 from pyplayready.wrmheader import WRMHeader
 
@@ -23,7 +23,7 @@ class _PlayreadyPSSHStructs:
         "data" / Switch(
             this.type,
             {
-                1: PaddedString(this.length, "utf16")
+                1: Bytes(this.length * 2)
             },
             default=Bytes(this.length)
         )
@@ -96,4 +96,4 @@ class PSSH:
     def _read_wrm_headers(wrm_header: Container):
         for record in wrm_header.records:
             if record.type == 1:
-                yield record.data
+                yield record.data.decode("utf-16-le")

pyplayready/xmrlicense.py

@@ -4,7 +4,8 @@ import base64
 from pathlib import Path
 from typing import Union
 
-from construct import Const, GreedyRange, Struct, Int32ub, Bytes, Int16ub, this, Switch, LazyBound, Array, Container
+from construct import Const, GreedyRange, Struct, Int32ub, Bytes, Int16ub, this, Switch, LazyBound, Array, Container, \
+    If, Byte
 
 
 class _XMRLicenseStructs:
@@ -151,12 +152,12 @@ class _XMRLicenseStructs:
         "minimum_move_protection_level" / Int32ub
     )
 
-    XMRObject = Struct(
+    XmrObject = Struct(
         "flags" / Int16ub,
         "type" / Int16ub,
         "length" / Int32ub,
         "data" / Switch(
-            lambda this_: this_.type,
+            lambda ctx: ctx.type,
             {
                 0x0005: OutputProtectionLevelRestrictionObject,
                 0x0008: AnalogVideoOutputConfigurationRestriction,
@@ -187,7 +188,7 @@ class _XMRLicenseStructs:
                 0x005a: SecureStopRestrictionObject,
                 0x0059: DigitalVideoOutputRestrictionObject
             },
-            default=LazyBound(lambda: _XMRLicenseStructs.XMRObject)
+            default=LazyBound(lambda ctx: _XMRLicenseStructs.XmrObject)
         )
     )
 
@@ -195,7 +196,7 @@ class _XMRLicenseStructs:
         "signature" / Const(b"XMR\x00"),
         "xmr_version" / Int32ub,
         "rights_id" / Bytes(16),
-        "containers" / GreedyRange(XMRObject)
+        "containers" / GreedyRange(XmrObject)
     )
 
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pyplayready"
-version = "0.3.6"
+version = "0.3.7"
 description = "pyplayready CDM (Content Decryption Module) implementation in Python."
 license = "CC BY-NC-ND 4.0"
 authors = ["DevLARLEY, Erevoc", "DevataDev"]
@@ -33,7 +33,7 @@ include = [
 python = ">=3.8,<4.0"
 requests = "^2.32.3"
 pycryptodome = "^3.21.0"
-construct = "^2.10.70"
+construct = "2.8.8"
 ECPy = "^1.2.5"
 click = "^8.1.7"
 xmltodict = "^0.14.2"

requirements.txt

@@ -1,7 +1,7 @@
 requests
 pycryptodome
 ecpy
-construct
+construct==2.8.8
 click
 PyYAML
 aiohttp