Fixes #36786 - Permit Symbol for YAML.safe_load report parser

[bastian-src]

Take a look at the Foreman ticket for the issue explanation.

I assumed the issue shouldn't appear due to this config:

foreman/config/application.rb

Lines 201 to 210 in 2517ba4

	# Starting 6.1.6.1 Rails forced users to explicitly list all the classes
	# that are allowed to be loaded by Psych
	# (https://github.com/rails/rails/pull/45584#issuecomment-1183255990)
	config.active_record.yaml_column_permitted_classes = [
	Symbol,
	Time,
	ActiveSupport::HashWithIndifferentAccess,
	ActiveSupport::TimeZone,
	ActiveSupport::TimeWithZone,
	]

But, it seems like the exception for HashWithIndifferentAccess has been added to the YAML.safe_load call already (which is extended with this PR) - just the one for Symbol is missing which leads to the issue described in the Foreman ticket.

I might've gotten something wrong here tho 🤞

[ekohl]

I assumed the issue shouldn't appear due to this config:

The config is just for ActiveRecord. If you use YAML directly it doesn't apply.

[ekohl]

Can you modify the commit message to say Symbol instead of colon? Other than that 👍

[bastian-src]

Thanks for the comment, I've changed the commit message accordingly 🙌

[bastian-src]

Marked as WIP to add some tests.

[bastian-src]

@ekohl Added some tests here too. 🙌

[ekohl]

Thanks!