File

usermanager: Add back temporary is_admin to warn about deprecated API usage Goal: Introduce role-auth with minimal disruption is_admin() is unsafe in a system with per-session permissions, so it has been deprecated. Roll-out approach: 1) First, log a warning when is_admin() is used. It should continue to function normally, backed by the new role API. Nothing is really using per-session authz yet, so there is minimal security concern. The 'strict_deprecate_is_admin' global setting can be set to 'true' to force a hard failure of is_admin() attempts (it will log an error and always return false). 2) In some time (at least 1 week), but possibly longer depending on the number of affected deployments: switch 'strict_deprecate_is_admin' to 'true' by default. It can still be disabled for systems that need it. 3) Further in the future, before the next release, the option will be removed and is_admin() will be permanently disabled.

local enum ptr_error
	"invalid-table"
	"invalid-path"
end

local function unescape_token(escaped_token : string) : string
	local unescaped = escaped_token:gsub("~1", "/"):gsub("~0", "~")
	return unescaped
end

local function resolve_json_pointer(ref : table, path : string) : any, ptr_error
	local ptr_len = #path+1
	for part, pos in path:gmatch("/([^/]*)()") do
		local token = unescape_token(part)
		if not ref is table then
			return nil
		end
		local idx = next(ref)
		local new_ref : any

		if idx is string then
			new_ref = ref[token]
		elseif idx is integer then
			local i = tonumber(token)
			if token == "-" then i = #ref + 1 end
			new_ref = ref[i+1]
		else
			return nil, "invalid-table"
		end

		if pos as integer == ptr_len then
			return new_ref
		elseif new_ref is table then
			ref = new_ref
		elseif not ref is table then
			return nil, "invalid-path"
		end

	end
	return ref
end

return {
	resolve = resolve_json_pointer,
}