//
// System.Web.Hosting.ApplicationHost.cs
//
// Author:
// Miguel de Icaza (miguel@novell.com)
//
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Configuration;
using System.IO;
using System.Security.Permissions;
using System.Security.Policy;
using System.Text;
using System.Web.Configuration;
namespace System.Web.Hosting{
// CAS - no InheritanceDemand here as the class is sealed
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class ApplicationHost {
internal static readonly string MonoHostedDataKey = ".:!MonoAspNetHostedApp!:.";
internal static string [] WebConfigFileNames = { "web.config", "Web.config", "Web.Config" };
ApplicationHost ()
{
}
static string FindWebConfig (string basedir)
{
string r = null;
foreach (string s in WebConfigFileNames){
r = Path.Combine (basedir, s);
if (File.Exists (r))
return r;
}
// default: return the last one
return r;
}
#if NET_2_0
static object create_dir = new object ();
#endif
internal static bool ClearDynamicBaseDirectory (string directory)
{
string[] entries = null;
try {
entries = Directory.GetDirectories (directory);
} catch {
// ignore
}
bool dirEmpty = true;
if (entries != null && entries.Length > 0) {
foreach (string e in entries) {
if (ClearDynamicBaseDirectory (e)) {
try {
Directory.Delete (e);
} catch {
dirEmpty = false;
}
}
}
}
try {
entries = Directory.GetFiles (directory);
} catch {
entries = null;
}
if (entries != null && entries.Length > 0) {
foreach (string e in entries) {
try {
File.Delete (e);
} catch {
dirEmpty = false;
}
}
}
return dirEmpty;
}
static bool CreateDirectory (string directory)
{
#if NET_2_0
lock (create_dir) {
#endif
if (!Directory.Exists (directory)) {
Directory.CreateDirectory (directory);
return false;
} else
return true;
#if NET_2_0
}
#endif
}
static string BuildPrivateBinPath (string physicalPath, string[] dirs)
{
#if NET_2_0
int len = dirs.Length;
string[] ret = new string [len];
for (int i = 0; i < len; i++)
ret [i] = Path.Combine (physicalPath, dirs [i]);
return String.Join (";", ret);
#else
return String.Join (";", dirs);
#endif
}
//
// For further details see `Hosting the ASP.NET runtime'
//
// http://www.west-wind.com/presentations/aspnetruntime/aspnetruntime.asp
//
#if TARGET_JVM
[MonoNotSupported ("")]
#endif
[SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
public static object CreateApplicationHost (Type hostType, string virtualDir, string physicalDir)
{
if (physicalDir == null)
throw new NullReferenceException ();
// Make sure physicalDir has file system semantics
// and not uri semantics ( '\' and not '/' ).
physicalDir = Path.GetFullPath (physicalDir);
if (hostType == null)
throw new ArgumentException ("hostType can't be null");
if (virtualDir == null)
throw new ArgumentNullException ("virtualDir");
Evidence evidence = new Evidence (AppDomain.CurrentDomain.Evidence);
//
// Setup
//
AppDomainSetup setup = new AppDomainSetup ();
setup.ApplicationBase = physicalDir;
setup.ConfigurationFile = FindWebConfig (physicalDir);
setup.DisallowCodeDownload = true;
string[] bindirPath = new string [1] {
#if NET_2_0
Path.Combine (physicalDir, "bin")
#else
"bin"
#endif
};
string bindir;
foreach (string dir in HttpApplication.BinDirs) {
bindir = Path.Combine (physicalDir, dir);
if (Directory.Exists (bindir)) {
#if NET_2_0
bindirPath [0] = bindir;
#else
bindirPath [0] = dir;
#endif
break;
}
}
setup.PrivateBinPath = BuildPrivateBinPath (physicalDir, bindirPath);
setup.PrivateBinPathProbe = "*";
string dynamic_dir = null;
string user = Environment.UserName;
int tempDirTag = 0;
string dirPrefix = String.Concat (user, "-temp-aspnet-");
for (int i = 0; ; i++){
string d = Path.Combine (Path.GetTempPath (), String.Concat (dirPrefix, i.ToString ("x")));
try {
CreateDirectory (d);
string stamp = Path.Combine (d, "stamp");
CreateDirectory (stamp);
dynamic_dir = d;
try {
Directory.Delete (stamp);
} catch (Exception) {
// ignore
}
tempDirTag = i.GetHashCode ();
break;
} catch (UnauthorizedAccessException){
continue;
}
}
//
// Unique Domain ID
//
string domain_id = (virtualDir.GetHashCode () + 1 ^ physicalDir.GetHashCode () + 2 ^ tempDirTag).ToString ("x");
// This is used by mod_mono's fail-over support
string domain_id_suffix = Environment.GetEnvironmentVariable ("__MONO_DOMAIN_ID_SUFFIX");
if (domain_id_suffix != null && domain_id_suffix.Length > 0)
domain_id += domain_id_suffix;
setup.ApplicationName = domain_id;
setup.DynamicBase = dynamic_dir;
setup.CachePath = dynamic_dir;
string dynamic_base = setup.DynamicBase;
if (CreateDirectory (dynamic_base) && (Environment.GetEnvironmentVariable ("MONO_ASPNET_NODELETE") == null))
ClearDynamicBaseDirectory (dynamic_base);
//
// Create app domain
//
AppDomain appdomain;
appdomain = AppDomain.CreateDomain (domain_id, evidence, setup);
//
// Populate with the AppDomain data keys expected, Mono only uses a
// few, but third party apps might use others:
//
appdomain.SetData (".appDomain", "*");
int l = physicalDir.Length;
if (physicalDir [l - 1] != Path.DirectorySeparatorChar)
physicalDir += Path.DirectorySeparatorChar;
appdomain.SetData (".appPath", physicalDir);
appdomain.SetData (".appVPath", virtualDir);
appdomain.SetData (".appId", domain_id);
appdomain.SetData (".domainId", domain_id);
appdomain.SetData (".hostingVirtualPath", virtualDir);
appdomain.SetData (".hostingInstallDir", Path.GetDirectoryName (typeof (Object).Assembly.CodeBase));
#if NET_2_0
appdomain.SetData ("DataDirectory", Path.Combine (physicalDir, "App_Data"));
#endif
appdomain.SetData (MonoHostedDataKey, "yes");
#if NET_2_0
appdomain.DoCallBack (SetHostingEnvironment);
#endif
return appdomain.CreateInstanceAndUnwrap (hostType.Module.Assembly.FullName, hostType.FullName);
}
#if NET_2_0
static void SetHostingEnvironment ()
{
bool shadow_copy_enabled = true;
HostingEnvironmentSection he = WebConfigurationManager.GetWebApplicationSection ("system.web/hostingEnvironment") as HostingEnvironmentSection;
if (he != null)
shadow_copy_enabled = he.ShadowCopyBinAssemblies;
if (shadow_copy_enabled) {
AppDomain current = AppDomain.CurrentDomain;
current.SetShadowCopyFiles ();
current.SetShadowCopyPath (current.SetupInformation.PrivateBinPath);
}
HostingEnvironment.IsHosted = true;
HostingEnvironment.SiteName = HostingEnvironment.ApplicationID;
}
#endif
}
}
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