GH-123599: url2pathname(): don't call gethostbyname() by default
#132610
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…fault Follow-up to 0879ebc. Add *resolve_netloc* keyword-only argument to `url2pathname()`, defaulting to false. When set to true, we call `socket.gethostbyname()` to resolve the URL authority (netloc).
| @@ -1494,6 +1494,8 @@ def _is_local_authority(authority): | |||
| if authority == hostname: | |||
| return True | |||
| # Compare IP addresses | |||
| if not resolve: | |||
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I wonder, should we check this before calling gethostname() which can fail?
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I'm struggling to come up with firm info on when gethostname() fails (or whether it can perform network access). Do you have any pointers? Thanks.
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I do not know.
But I was thinking about this case: processing the "file:" URL on different computer. We cannot use gethostname(), because it returns a different result. If we want to get a path on other computer, we should ignore the host name. There will still be problem with processing Windows paths on Posix and Posix paths on Windows.
I do not know how common this case, and how common the opposite case, when we only use gethostname(), but not gethostbyname(). We should guess what would be more useful for users without having any data.
Misc/NEWS.d/next/Library/2024-11-14-21-17-48.gh-issue-126838.Yr5vKF.rst
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Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
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Thanks for the reviews - sorry for my slow response |
Misc/NEWS.d/next/Library/2024-11-14-21-17-48.gh-issue-126838.Yr5vKF.rst
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Co-authored-by: Steve Dower <steve.dower@microsoft.com>
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@serhiy-storchaka sorry for the short notice, but would you mind if I merge this in time for 3.14 beta 1? I can log your outstanding feedback as a follow-up issue; I suspect we can address it during the 3.14 beta period without affecting the API. |
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LGTM.
I do not actually know what to do when we want to parse the "file:" URL on different machine, especially if they are Windows and Posix. On Windows, we can always interpret the host name as a UNC path. On Posix we can only ignore it or raise an exception if it is not localhost.
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Follow-up to 66cdb2b.
Add resolve_host keyword-only argument to
url2pathname(), defaulting to false. When set to true, we callsocket.gethostbyname()to resolve the URL authority (netloc).Path.from_uri()doesn't work if the URI contains host component #123599