2025-12-25 upload

venv/Lib/site-packages/h2/errors.py

@@ -0,0 +1,77 @@
+"""
+h2/errors
+~~~~~~~~~
+
+Global error code registry containing the established HTTP/2 error codes.
+
+The current registry is available at:
+https://tools.ietf.org/html/rfc7540#section-11.4
+"""
+from __future__ import annotations
+
+import enum
+
+
+class ErrorCodes(enum.IntEnum):
+    """
+    All known HTTP/2 error codes.
+
+    .. versionadded:: 2.5.0
+    """
+
+    #: Graceful shutdown.
+    NO_ERROR = 0x0
+
+    #: Protocol error detected.
+    PROTOCOL_ERROR = 0x1
+
+    #: Implementation fault.
+    INTERNAL_ERROR = 0x2
+
+    #: Flow-control limits exceeded.
+    FLOW_CONTROL_ERROR = 0x3
+
+    #: Settings not acknowledged.
+    SETTINGS_TIMEOUT = 0x4
+
+    #: Frame received for closed stream.
+    STREAM_CLOSED = 0x5
+
+    #: Frame size incorrect.
+    FRAME_SIZE_ERROR = 0x6
+
+    #: Stream not processed.
+    REFUSED_STREAM = 0x7
+
+    #: Stream cancelled.
+    CANCEL = 0x8
+
+    #: Compression state not updated.
+    COMPRESSION_ERROR = 0x9
+
+    #: TCP connection error for CONNECT method.
+    CONNECT_ERROR = 0xa
+
+    #: Processing capacity exceeded.
+    ENHANCE_YOUR_CALM = 0xb
+
+    #: Negotiated TLS parameters not acceptable.
+    INADEQUATE_SECURITY = 0xc
+
+    #: Use HTTP/1.1 for the request.
+    HTTP_1_1_REQUIRED = 0xd
+
+
+def _error_code_from_int(code: int) -> ErrorCodes | int:
+    """
+    Given an integer error code, returns either one of :class:`ErrorCodes
+    <h2.errors.ErrorCodes>` or, if not present in the known set of codes,
+    returns the integer directly.
+    """
+    try:
+        return ErrorCodes(code)
+    except ValueError:
+        return code
+
+
+__all__ = ["ErrorCodes"]