Files
Umbraco-CMS/src/Umbraco.Core/Extensions/AssemblyExtensions.cs
2022-01-11 11:47:31 +01:00

107 lines
3.5 KiB
C#

// Copyright (c) Umbraco.
// See LICENSE for more details.
using System;
using System.IO;
using System.Reflection;
namespace Umbraco.Extensions
{
public static class AssemblyExtensions
{
private static string _rootDir = "";
/// <summary>
/// Utility method that returns the path to the root of the application, by getting the path to where the assembly where this
/// method is included is present, then traversing until it's past the /bin directory. Ie. this makes it work
/// even if the assembly is in a /bin/debug or /bin/release folder
/// </summary>
/// <returns></returns>
public static string GetRootDirectorySafe(this Assembly executingAssembly)
{
if (string.IsNullOrEmpty(_rootDir) == false)
{
return _rootDir;
}
var codeBase = executingAssembly.Location;
var uri = new Uri(codeBase);
var path = uri.LocalPath;
var baseDirectory = Path.GetDirectoryName(path);
if (string.IsNullOrEmpty(baseDirectory))
throw new Exception("No root directory could be resolved. Please ensure that your Umbraco solution is correctly configured.");
_rootDir = baseDirectory.Contains("bin")
? baseDirectory.Substring(0, baseDirectory.LastIndexOf("bin", StringComparison.OrdinalIgnoreCase) - 1)
: baseDirectory;
return _rootDir;
}
/// <summary>
/// Returns the file used to load the assembly
/// </summary>
/// <param name="assembly"></param>
/// <returns></returns>
public static FileInfo GetAssemblyFile(this Assembly assembly)
{
var codeBase = assembly.Location;
var uri = new Uri(codeBase);
var path = uri.LocalPath;
return new FileInfo(path);
}
/// <summary>
/// Returns true if the assembly is the App_Code assembly
/// </summary>
/// <param name="assembly"></param>
/// <returns></returns>
public static bool IsAppCodeAssembly(this Assembly assembly)
{
if (assembly.FullName!.StartsWith("App_Code"))
{
try
{
Assembly.Load("App_Code");
return true;
}
catch (FileNotFoundException)
{
//this will occur if it cannot load the assembly
return false;
}
}
return false;
}
/// <summary>
/// Returns true if the assembly is the compiled global asax.
/// </summary>
/// <param name="assembly"></param>
/// <returns></returns>
public static bool IsGlobalAsaxAssembly(this Assembly assembly)
{
//only way I can figure out how to test is by the name
return assembly.FullName!.StartsWith("App_global.asax");
}
/// <summary>
/// Returns the file used to load the assembly
/// </summary>
/// <param name="assemblyName"></param>
/// <returns></returns>
public static FileInfo? GetAssemblyFile(this AssemblyName assemblyName)
{
var codeBase = assemblyName.CodeBase;
if (!string.IsNullOrEmpty(codeBase))
{
var uri = new Uri(codeBase);
var path = uri.LocalPath;
return new FileInfo(path);
}
return null;
}
}
}