private void SetupMainDirListener()
{
if (Directory.Exists(GH_ComponentServer.GHA_AppDataDirectory))
{
var watcher = GH_FileWatcher.CreateDirectoryWatcher(GH_ComponentServer.GHA_AppDataDirectory, "*.ghpy", GH_FileWatcherEvents.Created,
(sender, filePath, change) =>
{
try
{
if (change == WatcherChangeTypes.Created)
{
if (LoadOneAddon(_gha_environment, filePath))
{
GH_ComponentServer.UpdateRibbonUI();
}
}
}
catch (Exception ex)
{
Global_Proc.ASSERT(Guid.Empty, "GhPython last exception boundary", ex);
}
});
watcher.Active = true;
}
}
public override GH_LoadingInstruction PriorityLoad()
{
try
{
_gha_environment = CreateEnvironment();
LoadExternalPythonAssemblies();
SetupMainDirListener();
}
catch (Exception ex)
{
Global_Proc.ASSERT(Guid.Empty, "GhPython last exception boundary", ex);
}
return(GH_LoadingInstruction.Proceed);
}
private static bool LoadOneAddon(PythonEnvironment p, string path)
{
var engine = p.Engine as dynamic;
var runtime = engine.Runtime;
var ops = engine.Operations;
if (ExternalUnsafe.HasZoneIdetifier(path))
{
if (MessageBox.Show("A FILE IS BLOCKED: \n\n" +
path +
"\n\nBefore being able to use it, this file should be unblocked.\n" +
"Do you want attempt to unblock it now?", "GhPython Assembly is blocked",
MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button2,
MessageBoxOptions.DefaultDesktopOnly) == DialogResult.Yes)
{
if (!ExternalUnsafe.Unblock(path))
{
Global_Proc.ASSERT(Guid.Empty, "You need to unblock \"" + path + "\" manually."); return(false);
}
}
}
AssemblyName assName;
try
{
assName = AssemblyName.GetAssemblyName(path);
}
catch (SecurityException ex)
{
Global_Proc.ASSERT(Guid.Empty, "You have not enough rights to load \"" + path + "\".", ex); return(false);
}
catch (BadImageFormatException ex)
{
Global_Proc.ASSERT(Guid.Empty, "The assembly \"" + path + "\" has a bad format.", ex); return(false);
}
catch (FileLoadException ex)
{
Global_Proc.ASSERT(Guid.Empty, "The assembly \"" + path + "\" is found but cannot be loaded.", ex); return(false);
}
var appDomain = AppDomain.CreateDomain("Temp");
try
{
var farAssembly = appDomain.CreateInstanceFrom(path, "DLRCachedCode");
}
catch (FileLoadException ex)
{
int error = Marshal.GetHRForException(ex);
if (error == -0x40131515)
{
Global_Proc.ASSERT(Guid.Empty, "The file \"" + path + "\" is blocked.", ex); return(false);
}
Global_Proc.ASSERT(Guid.Empty, "The assembly at \"" + path + "\" cannot be loaded.", ex); return(false);
}
catch (BadImageFormatException ex)
{
Global_Proc.ASSERT(Guid.Empty, "This assembly \"" + path + "\" has a bad inner format.", ex); return(false);
}
catch (TypeLoadException ex)
{
Global_Proc.ASSERT(Guid.Empty, "\"" + path + "\" is not a valid Python assembly. Please remove it.", ex); return(false);
}
catch (MissingMethodException ex)
{
Global_Proc.ASSERT(Guid.Empty, "This assembly \"" + path + "\" is ruined.", ex); return(false);
}
finally
{
if (appDomain != null)
{
AppDomain.Unload(appDomain);
}
}
Assembly assembly = Assembly.LoadFile(path);
var cachedCode = assembly.GetType("DLRCachedCode", false, false);
if (cachedCode == null)
{
return(false); //should be already ruled out
}
dynamic info = cachedCode.InvokeMember("GetScriptCodeInfo",
BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Static,
null, null, new object[0]);
string[] modules = info.GetValue(2)[0];
runtime.LoadAssembly(assembly);
bool toReturn = false;
foreach (var module in modules)
{
var statement = "import " + module;
p.Script.ExecuteScript(statement);
dynamic ns = p.Script.GetVariable(module);
var dict = ns.Get__dict__();
var vars = dict.Keys;
foreach (var v in vars)
{
var text = v as string;
if (text == null)
{
continue;
}
object o = dict[text];
if (o == null)
{
continue;
}
Type type = o.GetType();
if (type.FullName != "IronPython.Runtime.Types.PythonType")
{
continue;
}
var basesEnum = (IEnumerable)type.InvokeMember(
"get_BaseTypes",
BindingFlags.NonPublic | BindingFlags.InvokeMethod | BindingFlags.Instance, null, o, null);
if (basesEnum == null)
{
continue;
}
foreach (var baseObj in basesEnum)
{
Type finalSystemType = (Type)baseObj.GetType().InvokeMember(
"get_FinalSystemType",
BindingFlags.NonPublic | BindingFlags.InvokeMethod | BindingFlags.Instance, null, baseObj, null);
if (finalSystemType == null)
{
continue;
}
if (typeof(IGH_Component).IsAssignableFrom(finalSystemType))
{
var instance = Instantiate(ops as object, o);
var proxy = new PythonInstantiatorProxy(instance, o, ops as object, path);
toReturn |= Grasshopper.GH_InstanceServer.ComponentServer.AddProxy(proxy);
}
}
}
p.Script.ExecuteScript("del " + module);
}
return(toReturn);
}
