Correct credentials make the login page go back to login without error messages. about webmail-lite

[afterlogic-support]

Actually, we've just run into a very similar issue. On a customer's system, we've found out that a couple of PHP functions won't work as expected.
Please check system/Api.php file, create its backup copy, and in DecodeKeyValues function, replace:

$aResult = @\unserialize(
	gzinflate(
		Utils\Crypt::XxteaDecrypt(
			Utils::UrlSafeBase64Decode($sEncodedValues), \md5(self::$sSalt))));

with:

$aResult = @\unserialize(
		Utils\Crypt::XxteaDecrypt(
			Utils::UrlSafeBase64Decode($sEncodedValues), \md5(self::$sSalt)));

Also, in EncodeKeyValues function, replace:

gzdeflate(
	@\serialize($aValues)
), 

with

@\serialize($aValues),

Does it help?

[xpufx]

Thanks for the quick response. The one sample I have in hand already started working again somehow. I will check this code the next time it happens and report back.

[xpufx]

This happened with a different user today and the proposed fix did work. If it will help with your debugging I want to remind you that we are using an old PHP version due to some unrelated legacy app. Our version is 5.6.37 . This issue must have started happening with a PHP update in the recent weeks.

Thanks for the fix.