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Alternative credential retrieval - threadsafe #2722

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@paullallier paullallier commented Jul 4, 2023

Similar to PR 2155

Description of changes:
Fallback to $_SERVER variable for AWS credentials to avoid using non-threadsafe putenv()

Would you consider allowing this change so that we can avoid having to use the non-threadsafe putenv() function to set AWS credentials - which we're storing in a .env file?

I've tried to write a test for it - not sure it's going to work yet.

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@paullallier paullallier marked this pull request as ready for review July 4, 2023 10:55
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paullallier commented Jul 4, 2023

Found a minor problem. This doesn't seem to fall through to null when $_SERVER[self::ENV_SESSION] is undefined. I'm tempted to revert that line since I don't need it, but maybe there's a better way?

getenv(self::ENV_SESSION) ?: $_SERVER[self::ENV_SESSION] ?: NULL

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ghost commented Sep 5, 2023

Could we get this merged eventually? Thanks!

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Any chance of a review and comments on how we could make this an acceptable merge, please?

@stobrien89 stobrien89 closed this Jul 1, 2024
@stobrien89 stobrien89 reopened this Jul 1, 2024
@@ -289,8 +289,8 @@ public static function env()
{
return function () {
// Use credentials from environment variables, if available
$key = getenv(self::ENV_KEY);
$secret = getenv(self::ENV_SECRET);
$key = getenv(self::ENV_KEY) ?: $_SERVER[self::ENV_KEY];
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The $_SERVER references should check to see if it is set. Also, we should fall back to false if it isn't. I think you could add a null coalescing operator to what's already here and add false on the right side of the operand.

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Thank you Sean. And I think that's what I SHOULD have done with the ENV_SESSION variable too. 12 month ago, I was less familiar with the difference between null coalesce and Elvis!

Do we need more tests?

Add a fall-through in case the $_SERVER variable isn't set (and re-introduce the equivalent change for ENV_SESSION)
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paullallier commented Jul 12, 2024

I'm not sure why I thought @server would set the $_SERVER variable for the test. Fixed this, but is there a cleaner option?

Sorry - I should have run the tests locally (which I have now done with PHP 8.3 at least).

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2 participants