Aggiornamento certifi (Fix Mediaset)

lib/certifi/core.py

@@ -1,36 +1,68 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 """
 certifi.py
 ~~~~~~~~~~
 
-This module returns the installation location of cacert.pem.
+This module returns the installation location of cacert.pem or its contents.
 """
 import os
-import warnings
+import types
+from typing import Union
+
+try:
+    from importlib.resources import path as get_path, read_text
+
+    _CACERT_CTX = None
+    _CACERT_PATH = None
+
+    def where() -> str:
+        # This is slightly terrible, but we want to delay extracting the file
+        # in cases where we're inside of a zipimport situation until someone
+        # actually calls where(), but we don't want to re-extract the file
+        # on every call of where(), so we'll do it once then store it in a
+        # global variable.
+        global _CACERT_CTX
+        global _CACERT_PATH
+        if _CACERT_PATH is None:
+            # This is slightly janky, the importlib.resources API wants you to
+            # manage the cleanup of this file, so it doesn't actually return a
+            # path, it returns a context manager that will give you the path
+            # when you enter it and will do any cleanup when you leave it. In
+            # the common case of not needing a temporary file, it will just
+            # return the file system location and the __exit__() is a no-op.
+            #
+            # We also have to hold onto the actual context manager, because
+            # it will do the cleanup whenever it gets garbage collected, so
+            # we will also store that at the global level as well.
+            _CACERT_CTX = get_path("certifi", "cacert.pem")
+            _CACERT_PATH = str(_CACERT_CTX.__enter__())
+
+        return _CACERT_PATH
 
 
-class DeprecatedBundleWarning(DeprecationWarning):
-    """
-    The weak security bundle is being deprecated. Please bother your service
-    provider to get them to stop using cross-signed roots.
-    """
+except ImportError:
+    Package = Union[types.ModuleType, str]
+    Resource = Union[str, "os.PathLike"]
+
+    # This fallback will work for Python versions prior to 3.7 that lack the
+    # importlib.resources module but relies on the existing `where` function
+    # so won't address issues with environments like PyOxidizer that don't set
+    # __file__ on modules.
+    def read_text(
+        package: Package,
+        resource: Resource,
+        encoding: str = 'utf-8',
+        errors: str = 'strict'
+    ) -> str:
+        with open(where(), encoding=encoding) as data:
+            return data.read()
+
+    # If we don't have importlib.resources, then we will just do the old logic
+    # of assuming we're on the filesystem and munge the path directly.
+    def where() -> str:
+        f = os.path.dirname(__file__)
+
+        return os.path.join(f, "cacert.pem")
 
 
-def where():
-    f = os.path.dirname(__file__)
-
-    return os.path.join(f, 'cacert.pem')
-
-
-def old_where():
-    warnings.warn(
-        "The weak security bundle is being deprecated.",
-        DeprecatedBundleWarning
-    )
-    f = os.path.dirname(__file__)
-    return os.path.join(f, 'weak.pem')
-
-if __name__ == '__main__':
-    print(where())
+def contents() -> str:
+    return read_text("certifi", "cacert.pem", encoding="ascii")