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Fix unicode errors #7044
Fix unicode errors #7044
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Thanks for the PR @ret2libc!
Could you spare a few more details on how the problem occurs? Where is it visible to the end-users? Is it different for the Cython-based parser vs. the pure Python one you're editing here? Also, I'd expect to see some regression tests bundled with PRs modifying such core functionality. Since we have two parser implementations, this would also help us make sure that their behavior is equivalent. |
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I added unit tests, hope they are ok! While doing so, I noticed the Cython-based parser does not have the same problem, but it raises a InvalidHeader error. What would be the best way forward? The python-based parser accepts the header in the test, thus I had to replace Thanks for your review! (and happy to see you again ;) ) |
This sounds like a good idea. I can't imagine anybody wanting to process an invalid header in their web application. |
I can refer you to the dozen issues complaining about the strict header parsing... :P I suspect this will actually not reject if we enable lenient headers in the future: #5269 (comment) |
I think if we just update the test to catch either LineTooLong or InvalidHeaderToken, that will then ensure that we catch any regression caused by the lenient headers being enabled in future. |
But these should be two distinct cases. Tests must be kept simple. |
Well, if lenient headers are enabled, then they should both cause LineTooLong, and the test can be updated then. We probably don't want to try and make the Python parser produce the same error, when it may change in llhttp parser later anyway. Lots of things trip the llhttp parser, which don't trip the Python parser currently (which is why people are disabling extensions as a workaround). |
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I have just adjusted the tests for now and I didn't reject the header. |
Looks good to me. Just some black formatting issue (thought the CI automatically fixed those...). |
Codecov Report
@@ Coverage Diff @@
## master #7044 +/- ##
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Coverage 97.50% 97.51%
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Files 103 103
Lines 29990 30007 +17
Branches 3643 3646 +3
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+ Hits 29243 29260 +17
Misses 567 567
Partials 180 180
Flags with carried forward coverage won't be shown. Click here to find out more.
📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more |
This should avoid problems when the line contains characters that cannot be decoded in the utf-8 encoding, which would generate a TypeError with the xmlcharrefreplace encoding.
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Backport to 3.9: 💔 cherry-picking failed — conflicts found❌ Failed to cleanly apply bce6e3c on top of patchback/backports/3.9/bce6e3c7324f53342bcd225103771c509fc4a67f/pr-7044 Backporting merged PR #7044 into master
🤖 @patchback |
@ret2libc Could you complete the backport for us? |
Fix few errors related to Unicode decoding. * multipart forms with invalid utf-8 characters as data can cause a UnicodeDecodeError to be raised. This should be raised as ValueError, like what is done in other parts of the code base. * HTTP request parser (pure-python) tries to decode the header name with utf-8/xmlcharrefreplace, which cannot decode bytes such as `\xd9`. I don't think so. <!-- Are there any issues opened that will be resolved by merging this change? --> - [x] I think the code is well written - [x] Unit tests for the changes exist - [ ] ~Documentation reflects the changes~ - [ ] If you provide code modification, please add yourself to `CONTRIBUTORS.txt` * The format is <Name> <Surname>. * Please keep alphabetical order, the file is sorted by names. - [x] ~Add a new news fragment into the `CHANGES` folder~ * name it `<issue_id>.<type>` for example (588.bugfix) * if you don't have an `issue_id` change it to the pr id after creating the pr * ensure type is one of the following: * `.feature`: Signifying a new feature. * `.bugfix`: Signifying a bug fix. * `.doc`: Signifying a documentation improvement. * `.removal`: Signifying a deprecation or removal of public API. * `.misc`: A ticket has been closed, but it is not of interest to users. * Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files." (cherry picked from commit bce6e3c)
@Dreamsorcerer tried to do that in #7099 . |
Fix few errors related to Unicode decoding. * multipart forms with invalid utf-8 characters as data can cause a UnicodeDecodeError to be raised. This should be raised as ValueError, like what is done in other parts of the code base. * HTTP request parser (pure-python) tries to decode the header name with utf-8/xmlcharrefreplace, which cannot decode bytes such as `\xd9`. I don't think so. <!-- Are there any issues opened that will be resolved by merging this change? --> - [x] I think the code is well written - [x] Unit tests for the changes exist - [ ] ~Documentation reflects the changes~ - [ ] If you provide code modification, please add yourself to `CONTRIBUTORS.txt` * The format is <Name> <Surname>. * Please keep alphabetical order, the file is sorted by names. - [x] ~Add a new news fragment into the `CHANGES` folder~ * name it `<issue_id>.<type>` for example (588.bugfix) * if you don't have an `issue_id` change it to the pr id after creating the pr * ensure type is one of the following: * `.feature`: Signifying a new feature. * `.bugfix`: Signifying a bug fix. * `.doc`: Signifying a documentation improvement. * `.removal`: Signifying a deprecation or removal of public API. * `.misc`: A ticket has been closed, but it is not of interest to users. * Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files." (cherry picked from commit bce6e3c)
Fix few errors related to Unicode decoding. * multipart forms with invalid utf-8 characters as data can cause a UnicodeDecodeError to be raised. This should be raised as ValueError, like what is done in other parts of the code base. * HTTP request parser (pure-python) tries to decode the header name with utf-8/xmlcharrefreplace, which cannot decode bytes such as `\xd9`. I don't think so. <!-- Are there any issues opened that will be resolved by merging this change? --> - [x] I think the code is well written - [x] Unit tests for the changes exist - [ ] ~Documentation reflects the changes~ - [ ] If you provide code modification, please add yourself to `CONTRIBUTORS.txt` * The format is <Name> <Surname>. * Please keep alphabetical order, the file is sorted by names. - [x] ~Add a new news fragment into the `CHANGES` folder~ * name it `<issue_id>.<type>` for example (588.bugfix) * if you don't have an `issue_id` change it to the pr id after creating the pr * ensure type is one of the following: * `.feature`: Signifying a new feature. * `.bugfix`: Signifying a bug fix. * `.doc`: Signifying a documentation improvement. * `.removal`: Signifying a deprecation or removal of public API. * `.misc`: A ticket has been closed, but it is not of interest to users. * Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files." (cherry picked from commit bce6e3c) <!-- Thank you for your contribution! --> ## What do these changes do? <!-- Please give a short brief about these changes. --> ## Are there changes in behavior for the user? <!-- Outline any notable behaviour for the end users. --> ## Related issue number <!-- Are there any issues opened that will be resolved by merging this change? --> ## Checklist - [ ] I think the code is well written - [ ] Unit tests for the changes exist - [ ] Documentation reflects the changes - [ ] If you provide code modification, please add yourself to `CONTRIBUTORS.txt` * The format is <Name> <Surname>. * Please keep alphabetical order, the file is sorted by names. - [ ] Add a new news fragment into the `CHANGES` folder * name it `<issue_id>.<type>` for example (588.bugfix) * if you don't have an `issue_id` change it to the pr id after creating the pr * ensure type is one of the following: * `.feature`: Signifying a new feature. * `.bugfix`: Signifying a bug fix. * `.doc`: Signifying a documentation improvement. * `.removal`: Signifying a deprecation or removal of public API. * `.misc`: A ticket has been closed, but it is not of interest to users. * Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."
[![Mend Renovate logo banner](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [aiohttp](https://togithub.com/aio-libs/aiohttp) | `==3.8.6` -> `==3.9.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/aiohttp/3.9.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/aiohttp/3.9.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/aiohttp/3.8.6/3.9.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/aiohttp/3.8.6/3.9.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>aio-libs/aiohttp (aiohttp)</summary> ### [`v3.9.0`](https://togithub.com/aio-libs/aiohttp/blob/HEAD/CHANGES.rst#390-2023-11-18) [Compare Source](https://togithub.com/aio-libs/aiohttp/compare/v3.8.6...v3.9.0) \================== ## Features - Introduced `AppKey` for static typing support of `Application` storage. See https://docs.aiohttp.org/en/stable/web_advanced.html#application-s-config `#​5864 <https://github.com/aio-libs/aiohttp/issues/5864>`\_ - Added a graceful shutdown period which allows pending tasks to complete before the application's cleanup is called. The period can be adjusted with the `shutdown_timeout` parameter. -- by :user:`Dreamsorcerer`. See https://docs.aiohttp.org/en/latest/web_advanced.html#graceful-shutdown `#​7188 <https://github.com/aio-libs/aiohttp/issues/7188>`\_ - Added `handler_cancellation <https://docs.aiohttp.org/en/stable/web_advanced.html#web-handler-cancellation>`\_ parameter to cancel web handler on client disconnection. -- by :user:`mosquito` This (optionally) reintroduces a feature removed in a previous release. Recommended for those looking for an extra level of protection against denial-of-service attacks. `#​7056 <https://github.com/aio-libs/aiohttp/issues/7056>`\_ - Added support for setting response header parameters `max_line_size` and `max_field_size`. `#​2304 <https://github.com/aio-libs/aiohttp/issues/2304>`\_ - Added `auto_decompress` parameter to `ClientSession.request` to override `ClientSession._auto_decompress`. -- by :user:`Daste745` `#​3751 <https://github.com/aio-libs/aiohttp/issues/3751>`\_ - Changed `raise_for_status` to allow a coroutine. `#​3892 <https://github.com/aio-libs/aiohttp/issues/3892>`\_ - Added client brotli compression support (optional with runtime check). `#​5219 <https://github.com/aio-libs/aiohttp/issues/5219>`\_ - Added `client_max_size` to `BaseRequest.clone()` to allow overriding the request body size. -- :user:`anesabml`. `#​5704 <https://github.com/aio-libs/aiohttp/issues/5704>`\_ - Added a middleware type alias `aiohttp.typedefs.Middleware`. `#​5898 <https://github.com/aio-libs/aiohttp/issues/5898>`\_ - Exported `HTTPMove` which can be used to catch any redirection request that has a location -- :user:`dreamsorcerer`. `#​6594 <https://github.com/aio-libs/aiohttp/issues/6594>`\_ - Changed the `path` parameter in `web.run_app()` to accept a `pathlib.Path` object. `#​6839 <https://github.com/aio-libs/aiohttp/issues/6839>`\_ - Performance: Skipped filtering `CookieJar` when the jar is empty or all cookies have expired. `#​7819 <https://github.com/aio-libs/aiohttp/issues/7819>`\_ - Performance: Only check origin if insecure scheme and there are origins to treat as secure, in `CookieJar.filter_cookies()`. `#​7821 <https://github.com/aio-libs/aiohttp/issues/7821>`\_ - Performance: Used timestamp instead of `datetime` to achieve faster cookie expiration in `CookieJar`. `#​7824 <https://github.com/aio-libs/aiohttp/issues/7824>`\_ - Added support for passing a custom server name parameter to HTTPS connection. `#​7114 <https://github.com/aio-libs/aiohttp/issues/7114>`\_ - Added support for using Basic Auth credentials from :file:`.netrc` file when making HTTP requests with the :py:class:`~aiohttp.ClientSession` `trust_env` argument is set to `True`. -- by :user:`yuvipanda`. `#​7131 <https://github.com/aio-libs/aiohttp/issues/7131>`\_ - Turned access log into no-op when the logger is disabled. `#​7240 <https://github.com/aio-libs/aiohttp/issues/7240>`\_ - Added typing information to `RawResponseMessage`. -- by :user:`Gobot1234` `#​7365 <https://github.com/aio-libs/aiohttp/issues/7365>`\_ - Removed `async-timeout` for Python 3.11+ (replaced with `asyncio.timeout()` on newer releases). `#​7502 <https://github.com/aio-libs/aiohttp/issues/7502>`\_ - Added support for `brotlicffi` as an alternative to `brotli` (fixing Brotli support on PyPy). `#​7611 <https://github.com/aio-libs/aiohttp/issues/7611>`\_ - Added `WebSocketResponse.get_extra_info()` to access a protocol transport's extra info. `#​7078 <https://github.com/aio-libs/aiohttp/issues/7078>`\_ - Allow `link` argument to be set to None/empty in HTTP 451 exception. `#​7689 <https://github.com/aio-libs/aiohttp/issues/7689>`\_ ## Bugfixes - Implemented stripping the trailing dots from fully-qualified domain names in `Host` headers and TLS context when acting as an HTTP client. This allows the client to connect to URLs with FQDN host name like `https://example.com./`. \-- by :user:`martin-sucha`. `#​3636 <https://github.com/aio-libs/aiohttp/issues/3636>`\_ - Fixed client timeout not working when incoming data is always available without waiting. -- by :user:`Dreamsorcerer`. `#​5854 <https://github.com/aio-libs/aiohttp/issues/5854>`\_ - Fixed `readuntil` to work with a delimiter of more than one character. `#​6701 <https://github.com/aio-libs/aiohttp/issues/6701>`\_ - Added `__repr__` to `EmptyStreamReader` to avoid `AttributeError`. `#​6916 <https://github.com/aio-libs/aiohttp/issues/6916>`\_ - Fixed bug when using `TCPConnector` with `ttl_dns_cache=0`. `#​7014 <https://github.com/aio-libs/aiohttp/issues/7014>`\_ - Fixed response returned from expect handler being thrown away. -- by :user:`Dreamsorcerer` `#​7025 <https://github.com/aio-libs/aiohttp/issues/7025>`\_ - Avoided raising `UnicodeDecodeError` in multipart and in HTTP headers parsing. `#​7044 <https://github.com/aio-libs/aiohttp/issues/7044>`\_ - Changed `sock_read` timeout to start after writing has finished, avoiding read timeouts caused by an unfinished write. -- by :user:`dtrifiro` `#​7149 <https://github.com/aio-libs/aiohttp/issues/7149>`\_ - Fixed missing query in tracing method URLs when using `yarl` 1.9+. `#​7259 <https://github.com/aio-libs/aiohttp/issues/7259>`\_ - Changed max 32-bit timestamp to an aware datetime object, for consistency with the non-32-bit one, and to avoid a `DeprecationWarning` on Python 3.12. `#​7302 <https://github.com/aio-libs/aiohttp/issues/7302>`\_ - Fixed `EmptyStreamReader.iter_chunks()` never ending. -- by :user:`mind1m` `#​7616 <https://github.com/aio-libs/aiohttp/issues/7616>`\_ - Fixed a rare `RuntimeError: await wasn't used with future` exception. -- by :user:`stalkerg` `#​7785 <https://github.com/aio-libs/aiohttp/issues/7785>`\_ - Fixed issue with insufficient HTTP method and version validation. `#​7700 <https://github.com/aio-libs/aiohttp/issues/7700>`\_ - Added check to validate that absolute URIs have schemes. `#​7712 <https://github.com/aio-libs/aiohttp/issues/7712>`\_ - Fixed unhandled exception when Python HTTP parser encounters unpaired Unicode surrogates. `#​7715 <https://github.com/aio-libs/aiohttp/issues/7715>`\_ - Updated parser to disallow invalid characters in header field names and stop accepting LF as a request line separator. `#​7719 <https://github.com/aio-libs/aiohttp/issues/7719>`\_ - Fixed Python HTTP parser not treating 204/304/1xx as an empty body. `#​7755 <https://github.com/aio-libs/aiohttp/issues/7755>`\_ - Ensure empty body response for 1xx/204/304 per RFC 9112 sec 6.3. `#​7756 <https://github.com/aio-libs/aiohttp/issues/7756>`\_ - Fixed an issue when a client request is closed before completing a chunked payload. -- by :user:`Dreamsorcerer` `#​7764 <https://github.com/aio-libs/aiohttp/issues/7764>`\_ - Edge Case Handling for ResponseParser for missing reason value. `#​7776 <https://github.com/aio-libs/aiohttp/issues/7776>`\_ - Fixed `ClientWebSocketResponse.close_code` being erroneously set to `None` when there are concurrent async tasks receiving data and closing the connection. `#​7306 <https://github.com/aio-libs/aiohttp/issues/7306>`\_ - Added HTTP method validation. `#​6533 <https://github.com/aio-libs/aiohttp/issues/6533>`\_ - Fixed arbitrary sequence types being allowed to inject values via version parameter. -- by :user:`Dreamsorcerer` `#​7835 <https://github.com/aio-libs/aiohttp/issues/7835>`\_ - Performance: Fixed increase in latency with small messages from websocket compression changes. `#​7797 <https://github.com/aio-libs/aiohttp/issues/7797>`\_ ## Improved Documentation - Fixed the `ClientResponse.release`'s type in the doc. Changed from `comethod` to `method`. `#​5836 <https://github.com/aio-libs/aiohttp/issues/5836>`\_ - Added information on behavior of base_url parameter in `ClientSession`. `#​6647 <https://github.com/aio-libs/aiohttp/issues/6647>`\_ - Fixed `ClientResponseError` docs. `#​6700 <https://github.com/aio-libs/aiohttp/issues/6700>`\_ - Updated Redis code examples to follow the latest API. `#​6907 <https://github.com/aio-libs/aiohttp/issues/6907>`\_ - Added a note about possibly needing to update headers when using `on_response_prepare`. -- by :user:`Dreamsorcerer` `#​7283 <https://github.com/aio-libs/aiohttp/issues/7283>`\_ - Completed `trust_env` parameter description to honor `wss_proxy`, `ws_proxy` or `no_proxy` env. `#​7325 <https://github.com/aio-libs/aiohttp/issues/7325>`\_ - Expanded SSL documentation with more examples (e.g. how to use certifi). -- by :user:`Dreamsorcerer` `#​7334 <https://github.com/aio-libs/aiohttp/issues/7334>`\_ - Fix, update, and improve client exceptions documentation. `#​7733 <https://github.com/aio-libs/aiohttp/issues/7733>`\_ ## Deprecations and Removals - Added `shutdown_timeout` parameter to `BaseRunner`, while deprecating `shutdown_timeout` parameter from `BaseSite`. -- by :user:`Dreamsorcerer` `#​7718 <https://github.com/aio-libs/aiohttp/issues/7718>`\_ - Dropped Python 3.6 support. `#​6378 <https://github.com/aio-libs/aiohttp/issues/6378>`\_ - Dropped Python 3.7 support. -- by :user:`Dreamsorcerer` `#​7336 <https://github.com/aio-libs/aiohttp/issues/7336>`\_ - Removed support for abandoned `tokio` event loop. -- by :user:`Dreamsorcerer` `#​7281 <https://github.com/aio-libs/aiohttp/issues/7281>`\_ ## Misc - Made `print` argument in `run_app()` optional. `#​3690 <https://github.com/aio-libs/aiohttp/issues/3690>`\_ - Improved performance of `ceil_timeout` in some cases. `#​6316 <https://github.com/aio-libs/aiohttp/issues/6316>`\_ - Changed importing Gunicorn to happen on-demand, decreasing import time by ~53%. -- :user:`Dreamsorcerer` `#​6591 <https://github.com/aio-libs/aiohttp/issues/6591>`\_ - Improved import time by replacing `http.server` with `http.HTTPStatus`. `#​6903 <https://github.com/aio-libs/aiohttp/issues/6903>`\_ - Fixed annotation of `ssl` parameter to disallow `True`. -- by :user:`Dreamsorcerer`. `#​7335 <https://github.com/aio-libs/aiohttp/issues/7335>`\_ *** </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). 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What do these changes do?
Fix few errors related to Unicode decoding.
\xd9
.Are there changes in behavior for the user?
I don't think so.
Related issue number
Checklist
Documentation reflects the changesCONTRIBUTORS.txt
Add a new news fragment into theCHANGES
folder<issue_id>.<type>
for example (588.bugfix)issue_id
change it to the pr id after creating the pr.feature
: Signifying a new feature..bugfix
: Signifying a bug fix..doc
: Signifying a documentation improvement..removal
: Signifying a deprecation or removal of public API..misc
: A ticket has been closed, but it is not of interest to users.