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Validate static command argument type before deserialization (4.1) #1722

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merged 1 commit into from
Oct 22, 2023
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Validate static command argument type before deserialization (4.1) #1722

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14 changes: 13 additions & 1 deletion src/Framework/Framework/Hosting/DotvvmPresenter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -333,8 +333,20 @@ public async Task ProcessRequestCore(IDotvvmRequestContext context)

private object? ExecuteStaticCommandPlan(StaticCommandInvocationPlan plan, Queue<JToken> arguments, IDotvvmRequestContext context)
{
var parameters = plan.Method.GetParameters();
object? DeserializeArgument(Type type, int index)
{
var parameterType =
plan.Method.IsStatic ? parameters[index].ParameterType :
index == 0 ? plan.Method.DeclaringType :
parameters[index - 1].ParameterType;
if (!parameterType!.IsAssignableFrom(type))
throw new Exception($"Argument {index} has an invalid type");
var arg = arguments.Dequeue();
return arg.ToObject(type);
}
var methodArgs = plan.Arguments.Select((a, index) =>
a.Type == StaticCommandParameterType.Argument ? arguments.Dequeue().ToObject((Type)a.Arg!) :
a.Type == StaticCommandParameterType.Argument ? DeserializeArgument((Type)a.Arg!, index) :
a.Type == StaticCommandParameterType.Constant || a.Type == StaticCommandParameterType.DefaultValue ? a.Arg :
a.Type == StaticCommandParameterType.Inject ?
#pragma warning disable CS0618
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