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Add masks for multiline secrets from ::add-mask:: #1521

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merged 2 commits into from
Dec 1, 2021

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TingluoHuang
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When the runner gets a secret coming from the service as part of the job message, if the secret has multiline, the runner will break the multiline and add a secret masker to each line.

However, we don't have the same logic when an action or step tries to register a new secret masker with ::add-mask::.

We should copy the logic and do the same thing with ::add-mask::

@TingluoHuang TingluoHuang requested a review from a team as a code owner November 30, 2021 15:58
@@ -381,6 +381,13 @@ public void ProcessCommand(IExecutionContext context, string line, ActionCommand

HostContext.SecretMasker.AddValue(command.Data);
Trace.Info($"Add new secret mask with length of {command.Data.Length}");

// Also add each individual line. Typically individual lines are processed from STDOUT of child processes.
var split = command.Data.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
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Should we also do StringSplitOptions.TrimEntries so we can avoid trimming each item?

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TrimEntries is new in dotnet 5+, i am going to merge the dotnet 6 PR and then add this.

thboop
thboop previously approved these changes Nov 30, 2021
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LGTM nit feedback

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LGTM

@TingluoHuang TingluoHuang merged commit b1ecffd into main Dec 1, 2021
@TingluoHuang TingluoHuang deleted the users/tihuang/addmaskml branch December 1, 2021 14:53
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2 participants