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Lukas Reschke 47ac8e0028 Add Psalm Taint Flow Analysis ... This adds the Psalm Security Analysis, as described at https://psalm.dev/docs/security_analysis/ It also adds a plugin for adding input into AppFramework. The results can be viewed in the GitHub Security tab at https://github.com/nextcloud/server/security/code-scanning **Q&A:** Q: Why do you not use the shipped Psalm version? A: I do a lot of changes to the Psalm Taint behaviour. Using released versions is not gonna get us the results we want. Q: How do I improve false positives? A: https://psalm.dev/docs/security_analysis/avoiding_false_positives/ Q: How do I add custom sources? A: https://psalm.dev/docs/security_analysis/custom_taint_sources/ Q: We should run this on apps! A: Yes. Q: What will change in Psalm? A: Quite some of the PHP core functions are not yet marked to propagate the taint. This leads to results where the taint flow is lost. That's something that I am currently working on. Q: Why is the plugin MIT licensed? A: Because its the first of its kind (based on GitHub Code Search) and I want other people to copy it if they want to. Security is for all :) Signed-off-by: Lukas Reschke <lukas@statuscode.ch>		4 years ago
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AppFrameworkTainter.php	Add Psalm Taint Flow Analysis	4 years ago