Recover from panics during request forwarding #3072
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gRPC doesn't have a handler for recovering from a panic like a normal HTTP request so a panic will actually kill Vault's listener. This basically copies the net/http logic for managing this. The SSH-specific logic is removed here as the underlying issue is caused by the request forwarding mechanism.
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@jefferai the initial panic recovery worked it just was casting to the wrong type. I was able to recreate the issue and address it by casting it to a string and returning the correct error. I can't assign you as a reviewer since you created this PR. Can you take a look? |
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Hah, ok. Perfect. Looks great! |
chrishoffman
approved these changes
Jul 28, 2017
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When request forwarding, if we have a panic, the entire connection gets killed. Instead, log an error with the panic information.
Fixes #2877
Note: fix is currently incomplete for the full issue.