2.0

1 files changed, 206 insertions, 0 deletions

diff --git a/.venv/lib/python3.12/site-packages/~ip/_vendor/cachecontrol/serialize.py b/.venv/lib/python3.12/site-packages/~ip/_vendor/cachecontrol/serialize.py
new file mode 100644
index 0000000..f9e967c
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/~ip/_vendor/cachecontrol/serialize.py
@@ -0,0 +1,206 @@
+# SPDX-FileCopyrightText: 2015 Eric Larson
+#
+# SPDX-License-Identifier: Apache-2.0
+from __future__ import annotations
+
+import io
+from typing import IO, TYPE_CHECKING, Any, Mapping, cast
+
+from pip._vendor import msgpack
+from pip._vendor.requests.structures import CaseInsensitiveDict
+from pip._vendor.urllib3 import HTTPResponse
+
+if TYPE_CHECKING:
+    from pip._vendor.requests import PreparedRequest
+
+
+class Serializer:
+    serde_version = "4"
+
+    def dumps(
+        self,
+        request: PreparedRequest,
+        response: HTTPResponse,
+        body: bytes | None = None,
+    ) -> bytes:
+        response_headers: CaseInsensitiveDict[str] = CaseInsensitiveDict(
+            response.headers
+        )
+
+        if body is None:
+            # When a body isn't passed in, we'll read the response. We
+            # also update the response with a new file handler to be
+            # sure it acts as though it was never read.
+            body = response.read(decode_content=False)
+            response._fp = io.BytesIO(body)  # type: ignore[attr-defined]
+            response.length_remaining = len(body)
+
+        data = {
+            "response": {
+                "body": body,  # Empty bytestring if body is stored separately
+                "headers": {str(k): str(v) for k, v in response.headers.items()},  # type: ignore[no-untyped-call]
+                "status": response.status,
+                "version": response.version,
+                "reason": str(response.reason),
+                "decode_content": response.decode_content,
+            }
+        }
+
+        # Construct our vary headers
+        data["vary"] = {}
+        if "vary" in response_headers:
+            varied_headers = response_headers["vary"].split(",")
+            for header in varied_headers:
+                header = str(header).strip()
+                header_value = request.headers.get(header, None)
+                if header_value is not None:
+                    header_value = str(header_value)
+                data["vary"][header] = header_value
+
+        return b",".join([f"cc={self.serde_version}".encode(), self.serialize(data)])
+
+    def serialize(self, data: dict[str, Any]) -> bytes:
+        return cast(bytes, msgpack.dumps(data, use_bin_type=True))
+
+    def loads(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> HTTPResponse | None:
+        # Short circuit if we've been given an empty set of data
+        if not data:
+            return None
+
+        # Determine what version of the serializer the data was serialized
+        # with
+        try:
+            ver, data = data.split(b",", 1)
+        except ValueError:
+            ver = b"cc=0"
+
+        # Make sure that our "ver" is actually a version and isn't a false
+        # positive from a , being in the data stream.
+        if ver[:3] != b"cc=":
+            data = ver + data
+            ver = b"cc=0"
+
+        # Get the version number out of the cc=N
+        verstr = ver.split(b"=", 1)[-1].decode("ascii")
+
+        # Dispatch to the actual load method for the given version
+        try:
+            return getattr(self, f"_loads_v{verstr}")(request, data, body_file)  # type: ignore[no-any-return]
+
+        except AttributeError:
+            # This is a version we don't have a loads function for, so we'll
+            # just treat it as a miss and return None
+            return None
+
+    def prepare_response(
+        self,
+        request: PreparedRequest,
+        cached: Mapping[str, Any],
+        body_file: IO[bytes] | None = None,
+    ) -> HTTPResponse | None:
+        """Verify our vary headers match and construct a real urllib3
+        HTTPResponse object.
+        """
+        # Special case the '*' Vary value as it means we cannot actually
+        # determine if the cached response is suitable for this request.
+        # This case is also handled in the controller code when creating
+        # a cache entry, but is left here for backwards compatibility.
+        if "*" in cached.get("vary", {}):
+            return None
+
+        # Ensure that the Vary headers for the cached response match our
+        # request
+        for header, value in cached.get("vary", {}).items():
+            if request.headers.get(header, None) != value:
+                return None
+
+        body_raw = cached["response"].pop("body")
+
+        headers: CaseInsensitiveDict[str] = CaseInsensitiveDict(
+            data=cached["response"]["headers"]
+        )
+        if headers.get("transfer-encoding", "") == "chunked":
+            headers.pop("transfer-encoding")
+
+        cached["response"]["headers"] = headers
+
+        try:
+            body: IO[bytes]
+            if body_file is None:
+                body = io.BytesIO(body_raw)
+            else:
+                body = body_file
+        except TypeError:
+            # This can happen if cachecontrol serialized to v1 format (pickle)
+            # using Python 2. A Python 2 str(byte string) will be unpickled as
+            # a Python 3 str (unicode string), which will cause the above to
+            # fail with:
+            #
+            #     TypeError: 'str' does not support the buffer interface
+            body = io.BytesIO(body_raw.encode("utf8"))
+
+        # Discard any `strict` parameter serialized by older version of cachecontrol.
+        cached["response"].pop("strict", None)
+
+        return HTTPResponse(body=body, preload_content=False, **cached["response"])
+
+    def _loads_v0(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> None:
+        # The original legacy cache data. This doesn't contain enough
+        # information to construct everything we need, so we'll treat this as
+        # a miss.
+        return None
+
+    def _loads_v1(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> HTTPResponse | None:
+        # The "v1" pickled cache format. This is no longer supported
+        # for security reasons, so we treat it as a miss.
+        return None
+
+    def _loads_v2(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> HTTPResponse | None:
+        # The "v2" compressed base64 cache format.
+        # This has been removed due to age and poor size/performance
+        # characteristics, so we treat it as a miss.
+        return None
+
+    def _loads_v3(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> None:
+        # Due to Python 2 encoding issues, it's impossible to know for sure
+        # exactly how to load v3 entries, thus we'll treat these as a miss so
+        # that they get rewritten out as v4 entries.
+        return None
+
+    def _loads_v4(
+        self,
+        request: PreparedRequest,
+        data: bytes,
+        body_file: IO[bytes] | None = None,
+    ) -> HTTPResponse | None:
+        try:
+            cached = msgpack.loads(data, raw=False)
+        except ValueError:
+            return None
+
+        return self.prepare_response(request, cached, body_file)