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🔗 Fix connecting to link-local IPv6 addresses #4556

Merged
merged 5 commits into from
Oct 16, 2020
Merged

🔗 Fix connecting to link-local IPv6 addresses #4556

merged 5 commits into from
Oct 16, 2020

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socketpair
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@socketpair socketpair commented Feb 5, 2020

What do these changes do?

Are there changes in behavior for the user?

Related issue number

Fixes #4554

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
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@socketpair socketpair requested a review from asvetlov as a code owner February 5, 2020 16:04
@psf-chronographer psf-chronographer bot added the bot:chronographer:provided There is a change note present in this PR label Feb 5, 2020
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socketpair commented Feb 6, 2020

@cooperlees I would recommend you to use IPv6 ULA addresses. I have painful experience with LL addresses. Especially in Avahi project. So, anyway, this fix should work. Please check.

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@asvetlov

saghul/pycares#122 (comment)

aiodns uses pycares. Unfortunately, pycares is an ancient library with obsolete (and definitely buggy) code. I would drop using pycares anywhere. It's much better to move code with resolving using threads to aiodns. Would you like it ?

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webknjaz commented Feb 6, 2020

@socketpair mind filling out the PR template?

hosts.append({
'hostname': host,
'host': host,
'port': port,
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maybe normalize the port here instead of the if-block?

Suggested change
'port': port,
'port': int(port),

@@ -0,0 +1 @@
Fix connecting to link-local IPv6 addresses.
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Any chance you could add a test for this?

@webknjaz webknjaz changed the title 🔗 Fix connecting to link-local IPv6 addresses (#4554) 🔗 Fix connecting to link-local IPv6 addresses Feb 6, 2020
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@socketpair bump

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wuisawesome commented Aug 24, 2020

Hey, is there still interest in getting this merged? I work on a downstream project (Ray) and we've had a lot of users come across this problem.

If there's interest in getting this merged, I think we'd be willing to fix up this PR.

(btw this is almost objectively no longer a rare issue, we've seen it on reproduced on popular ubuntu and redhat distros)

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I’m happy to lend some cycles to polish this up to if it will be accepted.

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@webknjaz bump

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LGTM

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wow

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I've finally found time for the project :)

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codecov-io commented Oct 16, 2020

Codecov Report

Merging #4556 into master will decrease coverage by 0.03%.
The diff coverage is 50.00%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #4556      +/-   ##
==========================================
- Coverage   97.53%   97.50%   -0.04%     
==========================================
  Files          43       43              
  Lines        8979     8983       +4     
  Branches     1417     1418       +1     
==========================================
+ Hits         8758     8759       +1     
- Misses        101      103       +2     
- Partials      120      121       +1     
Flag Coverage Δ
#unit 97.50% <50.00%> (-0.04%) ⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files Coverage Δ
aiohttp/resolver.py 93.18% <50.00%> (-6.82%) ⬇️

Continue to review full report at Codecov.

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💚 Backport successful

The PR was backported to the following branches:

asvetlov pushed a commit that referenced this pull request Oct 16, 2020
Co-authored-by: Коренберг Марк <socketpair@gmail.com>
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GET Requests to link-local IPv6 addresses don't work on Python 3.7+
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