* fixes#9305 by not being prone to the race condition in insertIfNotExists
* fixes#6899 by not using a query that can result in a deadlock
* replaces the insertIfNotExists call with an insert which is wrapped into a try-catch block
* followup to #12371
Signed-off-by: Morris Jobke <hey@morrisjobke.de>
This can be caused by the code releasing more locks then it acquires,
once the lock value becomes negative it's likely that it will never be able
to change into an exclusive lock again.
Signed-off-by: Robin Appelman <robin@icewind.nl>
This adds a phan plugin which checks for SQL injections on code using our QueryBuilder, while it isn't perfect it should already catch most potential issues.
As always, static analysis will sometimes have false positives and this is also here the case. So in some cases the analyzer just doesn't know if something is potential user input or not, thus I had to add some `@suppress SqlInjectionChecker` in front of those potential injections.
The Phan plugin hasn't the most awesome code but it works and I also added a file with test cases.
Signed-off-by: Lukas Reschke <lukas@statuscode.ch>
Morris Jobke
Robin Appelman
Lukas Reschke
Joas Schilling
Lukas Reschke
Thomas Müller
Robin Appelman
Roeland Jago Douma