Fix suspected race condition in prompt handling #105
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The current approach to handling prompts involves calling for a prompt and then registering a signal handler for a response that indicates the prompt had completed. In most cases, if the user were to take action, this would be quite slow. However, in the case of automatic responses to the prompt, the signal response may appear before the signal handler is configured, resulting in blocking forever. This commit moves the call for a prompt after the signal handling has been configured, closing the race window. Signed-off-by: William Martin <[email protected]>
This was referenced Mar 15, 2024
gh tries to use hosts.yml after initial boot and fails, then tries keyring and succeeds
cli/cli#8802
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williammartin
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@williammartin thanks for the PR, the description and the detailed issue, really great work! |
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1 similar comment
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👍 |
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Thanks so much for the quick review and merge! Will you create a new release with this or should I pin to the sha in the meantime?
OSS maintainers have to stick together 😉 |
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I have created a new release! https://github.com/zalando/go-keyring/releases/tag/v0.2.4 |
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Description
Fixes #104
The current approach to handling prompts involves calling for a prompt and then registering a signal handler for a response that indicates the prompt had completed. In most cases, if the user were to take action, this would be quite slow. However, in the case of automatic responses to the prompt, the signal response may appear before the signal handler is configured, resulting in blocking forever.
This commit moves the call for a prompt after the signal handling has been configured, closing the race window.
Reviewer Notes
I'll admit that I'm not very familiar with all the nuances of dbus or this library so it's entirely possible I've missed something. We've had three reports over on cli/cli#8802 that this has resolved the issue they were facing but I can't say for sure that there's not some unintended side effects.