public IExtension Load(string extensionPath)
{
var document = new XmlDocument();
document.Load(extensionPath);
var topNode = document.GetElementsByTagName("ExtensionDefinition");
if (topNode.Count == 0)
{
Log("Malformed " + extensionPath + " file");
return(null);
}
var definition = new ExtensionDefinition();
foreach (XmlNode item in topNode[0].ChildNodes)
{
if (item.Name == "AssemblyPath")
{
definition.AssemblyPath = item.InnerText;
}
else if (item.Name == "TypeName")
{
definition.TypeName = item.InnerText;
}
}
var extension = Load(definition);
return(extension);
}
/// <summary>
/// Loads <see cref="IExtension"/> from assembly.
/// </summary>
/// <param name="extensionPath">Assembly full path</param>
/// <returns>Loaded <see cref="IExtension"/></returns>
public IExtension Load(string extensionPath)
{
var document = new XmlDocument();
document.Load(extensionPath);
var topNode = document.GetElementsByTagName("ExtensionDefinition");
if (topNode.Count == 0)
{
Log("Malformed " + extensionPath + " file");
return null;
}
var definition = new ExtensionDefinition();
var path = Path.GetDirectoryName(extensionPath);
foreach (XmlNode item in topNode[0].ChildNodes)
{
if (item.Name == "AssemblyPath")
{
path = Path.Combine(path, item.InnerText);
definition.AssemblyPath = path;
}
else if (item.Name == "TypeName")
{
definition.TypeName = item.InnerText;
}
}
var extension = Load(definition);
return extension;
}
private IExtension Load(ExtensionDefinition extension)
{
try
{
if (extension.RequiresSignedEntryPoint)
{
CertificateVerification.CheckAssemblyForValidCertificate(extension.AssemblyPath);
}
var assembly = Assembly.LoadFrom(extension.AssemblyPath);
var result = assembly.CreateInstance(extension.TypeName) as IExtension;
ExtensionLoading?.Invoke(result);
Logging.Analytics.TrackEvent(
Actions.Load,
Categories.ExtensionOperations, extension.TypeName);
return(result);
}
catch (Exception ex)
{
var name = extension.TypeName == null ? "null" : extension.TypeName;
Log("Could not create an instance of " + name);
Log(ex.Message);
Log(ex.StackTrace);
return(null);
}
}
private IExtension Load(ExtensionDefinition extension)
{
try
{
var assembly = Assembly.Load(extension.AssemblyPath);
var result = assembly.CreateInstance(extension.TypeName) as IExtension;
return(result);
}
catch
{
var name = extension.TypeName == null ? "null" : extension.TypeName;
Log("Could not create an instance of " + name);
return(null);
}
}
private IExtension Load(ExtensionDefinition extension)
{
try
{
var assembly = Assembly.LoadFrom(extension.AssemblyPath);
var result = assembly.CreateInstance(extension.TypeName) as IExtension;
return result;
}
catch
{
var name = extension.TypeName == null ? "null" : extension.TypeName;
Log("Could not create an instance of " + name);
return null;
}
}
private IExtension Load(ExtensionDefinition extension)
{
try
{
var assembly = Assembly.LoadFrom(extension.AssemblyPath);
var result = assembly.CreateInstance(extension.TypeName) as IExtension;
ExtensionLoading?.Invoke(result);
return(result);
}
catch (Exception ex)
{
var name = extension.TypeName == null ? "null" : extension.TypeName;
Log("Could not create an instance of " + name);
Log(ex.Message);
Log(ex.StackTrace);
return(null);
}
}
/// <summary>
/// Loads <see cref="IExtension"/> from assembly.
/// </summary>
/// <param name="extensionPath">Assembly full path</param>
/// <returns>Loaded <see cref="IExtension"/></returns>
public IExtension Load(string extensionPath)
{
var document = new XmlDocument();
document.Load(extensionPath);
var topNode = document.GetElementsByTagName("ExtensionDefinition");
if (topNode.Count == 0)
{
Log("Malformed " + extensionPath + " file");
return(null);
}
var definition = new ExtensionDefinition();
var path = Path.GetDirectoryName(extensionPath);
foreach (XmlNode item in topNode[0].ChildNodes)
{
if (item.Name == "AssemblyPath")
{
path = Path.Combine(path, item.InnerText);
definition.AssemblyPath = path;
}
else if (item.Name == "TypeName")
{
definition.TypeName = item.InnerText;
}
}
//Check if the extension definition file was located in a directory which requires certificate validation.
foreach (var pathToVerifyCert in DirectoriesToVerifyCertificates)
{
if (extensionPath.Contains(pathToVerifyCert))
{
definition.RequiresSignedEntryPoint = true;
}
}
var extension = Load(definition);
return(extension);
}