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Miss Islington (bot) dae5b16bb3
[3.12] gh-98188: Fix EmailMessage.get_payload to decode data when CTE value has extra text (GH-127547) (#128529) 
gh-98188: Fix EmailMessage.get_payload to decode data when CTE value has extra text (GH-127547)

Up to this point message handling has been very strict with regards to content encoding values: mixed case was accepted, but trailing blanks or other text would cause decoding failure, even if the first token was a valid encoding.  By Postel's Rule we should go ahead and decode as long as we can recognize that first token.  We have not thought of any security or backward compatibility concerns with this fix.

This fix does introduce a new technique/pattern to the Message code: we look to see if the header has a 'cte' attribute, and if so we use that.  This effectively promotes the header API exposed by HeaderRegistry to an API that any header parser "should" support.  This seems like a reasonable thing to do.  It is not, however, a requirement, as the string value of the header is still used if there is no cte attribute.

The full fix (ignore any trailing blanks or blank-separated trailing text) applies only to the non-compat32 API.  compat32 is only fixed to the extent that it now ignores trailing spaces.  Note that the HeaderRegistry parsing still records a HeaderDefect if there is extra text.

(cherry picked from commit a62ba52f14)

Co-authored-by: RanKKI <hliu86.me@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2025-01-07 12:44:56 -05:00
..
NEWS.d [3.12] gh-98188: Fix EmailMessage.get_payload to decode data when CTE value has extra text (GH-127547) (#128529) 2025-01-07 12:44:56 -05:00
rhel7 gh-95957: Add instructions for Tcl/Tk and OpenSSL on RHEL/CentOS 7 (#95964) 2022-08-16 13:44:02 +02:00
ACKS [3.12] gh-98188: Fix EmailMessage.get_payload to decode data when CTE value has extra text (GH-127547) (#128529) 2025-01-07 12:44:56 -05:00
coverity_model.c [3.12] Fix typos (#123775) (#123867) 2024-09-09 13:22:13 +00:00
externals.spdx.json [3.12] gh-124448: Update Windows builds to use Tcl/Tk 8.6.15 (GH-125796) 2024-10-21 21:44:56 -05:00
HISTORY [3.12] gh-123492: Remove unnecessary :func: parentheses (gh-123493) (#123512) 2024-08-30 20:09:55 +03:00
indent.pro
Porting bpo-30737: Update DevGuide links to new URL (GH-3228) 2017-08-30 09:37:43 -07:00
python-config.in bpo-38468 : Refactor python-config (#16749) 2019-10-15 11:18:47 -03:00
python-config.sh.in bpo-37925: Mention --embed in python-config usage (GH-15458) 2019-08-26 23:45:36 +02:00
python-embed.pc.in bpo-36721: Add --embed option to python-config (GH-13500) 2019-05-23 03:30:23 +02:00
python.man [3.12] gh-121101: Document -Wall option (an alias for -Walways) (GH-121102) (#121147) 2024-06-29 13:57:22 +05:30
python.pc.in gh-99942: python.pc on android/cygwin should link to libpython per configure.ac (GH-100356) 2023-02-21 17:21:24 -08:00
README gh-102809: Remove gdbinit mention in Misc/README (#103269) 2023-04-08 00:04:23 -07:00
README.AIX bpo-42087: Remove support for AIX 5.3 and below (GH-22830) 2020-11-16 16:16:10 +01:00
README.coverity
README.valgrind closes docs: remove references to Py_USING_MEMORY_DEBUGGER (GH-30284) 2021-12-29 16:20:42 -06:00
sbom.spdx.json [3.12] gh-126623: Update libexpat to 2.6.4, make future updates easier (GH-126792) (GH-126797) 2024-11-13 18:50:29 +00:00
SpecialBuilds.txt gh-78607: Replace __ltrace__ with __lltrace__ (GH-91619) 2022-04-16 18:57:00 -04:00
stable_abi.toml [3.12] gh-102304: Fix Py_INCREF() stable ABI in debug mode (#104763) (#105352) 2023-06-06 16:22:04 +02:00
svnmap.txt bpo-32159: Revert Misc/svnmap.txt (#4639) 2017-11-29 18:58:33 +01:00
valgrind-python.supp [3.12] gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (#121123) 2024-06-28 11:17:30 +00:00
vgrindefs

README 

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.coverity         Information about running Coverity's Prevent on Python
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)