[stable22] Check resource before closing in encryption wrapper #30181
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In case of error there is no guarantee that $source or $target is set or is a resource when handling an error. Without this fix, there's a risk that fclose will fail and the actual exception will not be thrown, making it impossible to find out about the root cause. Signed-off-by: Vincent Petry <vincent@nextcloud.com>
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PVince81,
Pytal,
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icewind1991,
juliusknorr,
miaulalala and
nickvergessen
nickvergessen
approved these changes
Dec 10, 2021
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backport of #30160