gh-102247: http: support rfc9110 status codes (GH-117611)

rfc9110 obsoletes the earlier rfc 7231. This document also includes some
status codes that were previously only used for WebDAV and assigns more
generic names to these status codes.

ref: https://www.rfc-editor.org/rfc/rfc9110.html#name-changes-from-rfc-7231

- http.HTTPStatus.CONTENT_TOO_LARGE (413, previously
  REQUEST_ENTITY_TOO_LARGE)
- http.HTTPStatus.URI_TOO_LONG (414, previously REQUEST_URI_TOO_LONG)
- http.HTTPStatus.RANGE_NOT_SATISFYABLE (416, previously
  REQUEST_RANGE_NOT_SATISFYABLE)
- http.HTTPStatus.UNPROCESSABLE_CONTENT (422, previously
  UNPROCESSABLE_ENTITY)

The new constants are added to http.HTTPStatus and the old constant names are
preserved for backwards compatibility.

References in documentation to the obsoleted rfc 7231 are updated

1 files changed, 11 insertions, 9 deletions

diff --git a/Lib/http/__init__.py b/Lib/http/__init__.py
index e093a1f..d64741e 100644
--- a/Lib/http/__init__.py
+++ b/Lib/http/__init__.py
@@ -9,7 +9,7 @@ class HTTPStatus:
 
     Status codes from the following RFCs are all observed:
 
-        * RFC 7231: Hypertext Transfer Protocol (HTTP/1.1), obsoletes 2616
+        * RFC 9110: HTTP Semantics, obsoletes 7231, which obsoleted 2616
         * RFC 6585: Additional HTTP Status Codes
         * RFC 3229: Delta encoding in HTTP
         * RFC 4918: HTTP Extensions for WebDAV, obsoletes 2518
@@ -26,7 +26,6 @@ class HTTPStatus:
     def __new__(cls, value, phrase, description=''):
         obj = int.__new__(cls, value)
         obj._value_ = value
-
         obj.phrase = phrase
         obj.description = description
         return obj
@@ -115,22 +114,25 @@ class HTTPStatus:
         'Client must specify Content-Length')
     PRECONDITION_FAILED = (412, 'Precondition Failed',
         'Precondition in headers is false')
-    REQUEST_ENTITY_TOO_LARGE = (413, 'Request Entity Too Large',
-        'Entity is too large')
-    REQUEST_URI_TOO_LONG = (414, 'Request-URI Too Long',
+    CONTENT_TOO_LARGE = (413, 'Content Too Large',
+        'Content is too large')
+    REQUEST_ENTITY_TOO_LARGE = CONTENT_TOO_LARGE
+    URI_TOO_LONG = (414, 'URI Too Long',
         'URI is too long')
+    REQUEST_URI_TOO_LONG = URI_TOO_LONG
     UNSUPPORTED_MEDIA_TYPE = (415, 'Unsupported Media Type',
         'Entity body in unsupported format')
-    REQUESTED_RANGE_NOT_SATISFIABLE = (416,
-        'Requested Range Not Satisfiable',
+    RANGE_NOT_SATISFIABLE = (416, 'Range Not Satisfiable',
         'Cannot satisfy request range')
+    REQUESTED_RANGE_NOT_SATISFIABLE = RANGE_NOT_SATISFIABLE
     EXPECTATION_FAILED = (417, 'Expectation Failed',
         'Expect condition could not be satisfied')
     IM_A_TEAPOT = (418, 'I\'m a Teapot',
         'Server refuses to brew coffee because it is a teapot.')
     MISDIRECTED_REQUEST = (421, 'Misdirected Request',
         'Server is not able to produce a response')
-    UNPROCESSABLE_ENTITY = 422, 'Unprocessable Entity'
+    UNPROCESSABLE_CONTENT = 422, 'Unprocessable Content'
+    UNPROCESSABLE_ENTITY = UNPROCESSABLE_CONTENT
     LOCKED = 423, 'Locked'
     FAILED_DEPENDENCY = 424, 'Failed Dependency'
     TOO_EARLY = 425, 'Too Early'
@@ -177,7 +179,7 @@ class HTTPMethod:
 
     Methods from the following RFCs are all observed:
 
-        * RFC 7231: Hypertext Transfer Protocol (HTTP/1.1), obsoletes 2616
+        * RFF 9110: HTTP Semantics, obsoletes 7231, which obsoleted 2616
         * RFC 5789: PATCH Method for HTTP
     """
     def __new__(cls, value, description):