Flagsmith/flagsmith

Null-terminated query parameters cause server errors in the Core SDK endpoints

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#2.901 aberto em 30 de out. de 2023

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Description

Example Sentry issue: FLAGSMITH-API-3TZ

ValueError: A string literal cannot contain NUL (0x00) characters.
(15 additional frame(s) were not displayed)
...
  File "environments/identities/views.py", line 185, in get
    .get_or_create(identifier=identifier, environment=request.environment)

This should be a problem for every view that accesses query parameters directly.

A quick search yields 8 occurences of this: https://github.com/search?q=repo%3AFlagsmith%2Fflagsmith+query_params.get&type=code

For each of those we need to assess the performance impact of using a serializer (DRF's CharField handles null chars).

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