zift 0.2.3

Scan codebases for embedded authorization logic and generate Policy as Code (Rego for OPA, Cedar for AWS Verified Permissions and other Cedar-compatible engines)
Documentation 
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[rule]
id = "ruby-pundit-policy-method"
languages = ["ruby"]
category = "rbac"
confidence = "high"
description = "Pundit policy(...).<action>? method call (Ruby)"
# Captures `policy(@post).update?` — the explicit form used in views, helpers,
# and service objects where `authorize` isn't available. The outer call's
# receiver is a `policy(...)` call (method=`policy`); the outer method name is
# any predicate-style identifier (trailing `?`). The receiver-resource is
# captured for downstream tooling.
query = """
(call
  receiver: (call
    !receiver
    method: (identifier) @policy_fn
    arguments: (argument_list
      [
        (instance_variable)
        (identifier)
        (constant)
      ] @resource))
  method: (identifier) @action
) @match
"""

[rule.predicates.policy_fn]
eq = "policy"

[rule.predicates.action]
match = "\\?$"

[rule.rego_template]
template = """
default allow := false

# TODO: translate Pundit policy method {{action}} on {{resource}}.
allow if {
    input.user.permissions[_] == "TODO"
}
"""


[rule.cedar_template]
template = """
permit (
    principal,
    action,
    resource
)
when {
    principal.role == "TODO"
};
"""
[[rule.tests]]
input = """
def can_edit?
  policy(@post).update?
end
"""
expect_match = true

[[rule.tests]]
input = """
def edit_link
  link_to 'Edit', edit_post_path(@post) if policy(@post).edit?
end
"""
expect_match = true

[[rule.tests]]
input = """
def can_destroy?
  current_user.admin?
end
"""
expect_match = false