/// <summary>
/// Called when a new message is received from a different process. Do not keep a
/// reference to or attempt to access the message outside of this callback.
/// </summary>
protected internal virtual void OnCefProcessMessageReceived(CefProcessMessageReceivedEventArgs e)
{
if (e.SourceProcess == CefProcessId.Renderer)
{
if (e.Name == XrayResponseKey)
{
e.Handled = ProcessXrayMessage(e.Message);
}
}
else if (e.SourceProcess == CefProcessId.Browser)
{
switch (e.Name)
{
case XrayReleaseKey:
ProcessXrayRelease(e);
return;
case XrayRequestKey:
ProcessXrayRequest(e);
return;
}
}
if (!e.Handled)
{
CefProcessMessageReceived?.Invoke(this, e);
}
}
private static void ProcessXrayRelease(CefProcessMessageReceivedEventArgs e)
{
using (var args = e.Message.ArgumentList)
{
if (args.GetType(0) != CefValueType.Binary)
{
return;
}
XrayHandle handle = XrayHandle.FromCfxBinaryValue(args.GetBinary(0));
if ((int)(handle.frame >> 32) != (int)(e.Frame.Identifier >> 32))
{
return; // Mismatch process IDs
}
handle.Release();
}
}
private static void ProcessXrayRequest(CefProcessMessageReceivedEventArgs e)
{
CefListValue args = e.Message.ArgumentList;
CefProcessMessage message = new CefProcessMessage(XrayResponseKey);
CefListValue retArgs = message.ArgumentList;
retArgs.SetSize(2);
retArgs.SetValue(0, args.GetValue(0));
CefValue retval = null;
XrayAction queryAction = (XrayAction)args.GetInt(1);
try
{
CefV8Context v8Context;
XrayObject target = null;
if (queryAction == XrayAction.GetGlobal)
{
v8Context = e.Frame.V8Context;
}
else
{
target = XrayHandle.FromCfxBinaryValue(args.GetBinary(2)).GetTarget(e.Frame);
v8Context = target?.Context ?? e.Frame.V8Context;
}
if (!v8Context.IsValid)
{
throw new ObjectDeadException();
}
if (!v8Context.Enter())
{
throw new ObjectDeadException();
}
try
{
CefV8Value rv = null;
switch (queryAction)
{
case XrayAction.Get:
long corsRid = ScriptableObjectProvider.Get(v8Context, target, args, out rv);
if (corsRid != 0)
{
var xray = new XrayHandle();
xray.dataType = XrayDataType.CorsRedirect;
xray.iRaw = corsRid;
retval = new CefValue();
retval.SetBinary(xray.ToCfxBinaryValue());
retArgs.SetValue(1, retval);
}
break;
case XrayAction.Set:
ScriptableObjectProvider.Set(v8Context, target, args);
break;
case XrayAction.InvokeMember:
rv = ScriptableObjectProvider.InvokeMember(v8Context, target, args);
break;
case XrayAction.Invoke:
rv = ScriptableObjectProvider.Invoke(v8Context, target, args);
break;
case XrayAction.GetGlobal:
rv = v8Context.GetGlobal();
break;
default:
throw new NotSupportedException();
}
if (rv != null)
{
retval = ScriptableObjectProvider.CastCefV8ValueToCefValue(v8Context, rv, out bool isXray);
if (!isXray)
{
rv.Dispose();
}
retArgs.SetValue(1, retval);
}
}
finally
{
v8Context.Exit();
}
}
catch (AccessViolationException) { throw; }
catch (OutOfMemoryException) { throw; }
catch (Exception ex)
{
//File.AppendAllText("G:\\outlog.txt", ex.GetType().Name + ": " + ex.Message + "\r\n" + ex.StackTrace + "\r\n");
retArgs.SetSize(4);
retArgs.SetString(1, ex.Message);
retArgs.SetString(2, ex.GetType().FullName);
retArgs.SetString(3, ex.StackTrace);
}
//CfxValueType t = e.Message.ArgumentList.GetType(0);
e.Frame.SendProcessMessage(CefProcessId.Browser, message);
message.Dispose();
retval?.Dispose();
e.Handled = true;
}