Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / activationcontext.cs / 3 / activationcontext.cs
using System; using System.Collections; using System.Deployment.Internal; using System.Deployment.Internal.Isolation; using System.Deployment.Internal.Isolation.Manifest; using System.IO; using System.Runtime.InteropServices; using System.Runtime.Serialization; using System.Security.Permissions; namespace System { #if !FEATURE_PAL // Public surface area for Whidbey: // AppDomain.ActivationContext // AppDomain.ActivationContext.Identity // AppDomain.ActivationContext.Identity.FullName // AppDomain.ActivationContext.Identity.CodeBase // static ActivationContext.CreatePartialActivationContext(identity) // static ActivationContext.CreatePartialActivationContext(identity, manifestPaths[]) // ActivationContext class // ActivationContext.Identity // ApplicationIdentity class // ApplicationIdentity.FullName // ApplicationIdentity.CodeBase // + existing AppDomain.BaseDirectory: local app directory [Serializable()] [System.Runtime.InteropServices.ComVisible(false)] public sealed class ActivationContext : IDisposable, ISerializable { private ApplicationIdentity _applicationIdentity; // ISSUE - can use Generic lists. private ArrayList _definitionIdentities; private ArrayList _manifests; private string[] _manifestPaths; private ContextForm _form; private ApplicationStateDisposition _appRunState; private IActContext _actContext; private const int DefaultComponentCount = 2; private ActivationContext () {} private ActivationContext (SerializationInfo info, StreamingContext context) { string fullName = (string) info.GetValue("FullName", typeof(string)); string[] manifestPaths = (string[]) info.GetValue("ManifestPaths", typeof(string[])); if (manifestPaths == null) CreateFromName(new ApplicationIdentity(fullName)); else CreateFromNameAndManifests(new ApplicationIdentity(fullName), manifestPaths); } internal ActivationContext(ApplicationIdentity applicationIdentity) { CreateFromName(applicationIdentity); } internal ActivationContext(ApplicationIdentity applicationIdentity, string[] manifestPaths) { CreateFromNameAndManifests(applicationIdentity, manifestPaths); } private void CreateFromName (ApplicationIdentity applicationIdentity) { if (applicationIdentity == null) throw new ArgumentNullException("applicationIdentity"); _applicationIdentity = applicationIdentity; IEnumDefinitionIdentity idenum = _applicationIdentity.Identity.EnumAppPath(); _definitionIdentities = new ArrayList(DefaultComponentCount); IDefinitionIdentity[] asbId = new IDefinitionIdentity[1]; while (idenum.Next(1, asbId) == 1) { _definitionIdentities.Add(asbId[0]); } _definitionIdentities.TrimToSize(); if (_definitionIdentities.Count <= 1) { #if ISOLATION_IN_MSCORLIB throw new ArgumentException(Environment.GetResourceString("Argument_InvalidAppId")); #else throw new ArgumentException("Invalid identity: no deployment/app identity specified"); #endif } _manifestPaths = null; _manifests = null; // Construct real IActContext from store. _actContext = IsolationInterop.CreateActContext(_applicationIdentity.Identity); _form = ContextForm.StoreBounded; _appRunState = ApplicationStateDisposition.Undefined; #if ISOLATION_IN_MSCORLIB BCLDebug.Assert(_definitionIdentities.Count == 2, "An application must have exactly 1 deployment component and 1 application component in Whidbey"); #endif } private void CreateFromNameAndManifests (ApplicationIdentity applicationIdentity, string[] manifestPaths) { if (applicationIdentity == null) throw new ArgumentNullException("applicationIdentity"); if (manifestPaths == null) throw new ArgumentNullException("manifestPaths"); _applicationIdentity = applicationIdentity; // ISSUE - need validation on manifestPaths IEnumDefinitionIdentity idenum = _applicationIdentity.Identity.EnumAppPath(); _manifests = new ArrayList(DefaultComponentCount); _manifestPaths = new String[manifestPaths.Length]; IDefinitionIdentity[] asbId = new IDefinitionIdentity[1]; int i=0; while (idenum.Next(1, asbId) == 1) { ICMS cms = (ICMS) IsolationInterop.ParseManifest(manifestPaths[i], null, ref IsolationInterop.IID_ICMS); if (IsolationInterop.IdentityAuthority.AreDefinitionsEqual(0, cms.Identity, asbId[0])) { _manifests.Add(cms); _manifestPaths[i]=manifestPaths[i]; } else { #if ISOLATION_IN_MSCORLIB throw new ArgumentException(Environment.GetResourceString("Argument_IllegalAppIdMismatch")); #else throw new ArgumentException("Application Identity does not match identity in manifests"); #endif } i++; } if (i!=manifestPaths.Length) { #if ISOLATION_IN_MSCORLIB throw new ArgumentException(Environment.GetResourceString("Argument_IllegalAppId")); #else throw new ArgumentException("Application Identity does not have same number of components as manifest paths"); #endif } _manifests.TrimToSize(); if (_manifests.Count <= 1) { #if ISOLATION_IN_MSCORLIB throw new ArgumentException(Environment.GetResourceString("Argument_InvalidAppId")); #else throw new ArgumentException("Invalid identity: no deployment/app identity specified"); #endif } _definitionIdentities = null; _actContext = null; _form = ContextForm.Loose; _appRunState = ApplicationStateDisposition.Undefined; #if ISOLATION_IN_MSCORLIB BCLDebug.Assert(_manifests.Count == 2, "An application must have exactly 1 deployment component and 1 application component in Whidbey"); #endif } ~ActivationContext() { Dispose(false); } public static ActivationContext CreatePartialActivationContext(ApplicationIdentity identity) { return new ActivationContext(identity); } public static ActivationContext CreatePartialActivationContext(ApplicationIdentity identity, string[] manifestPaths) { return new ActivationContext(identity, manifestPaths); } public ApplicationIdentity Identity { get { return _applicationIdentity; } } public ContextForm Form { get { return _form; } } public byte[] ApplicationManifestBytes { get { return GetApplicationManifestBytes(); } } public byte[] DeploymentManifestBytes { get { return GetDeploymentManifestBytes(); } } internal string[] ManifestPaths { get { return _manifestPaths; } } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } // Nested Enum. public enum ContextForm { Loose = 0, StoreBounded = 1 } // Internals. internal string ApplicationDirectory { get { if (_form == ContextForm.Loose) return Path.GetDirectoryName(_manifestPaths[_manifestPaths.Length-1]); string s; _actContext.ApplicationBasePath(0, out s); return s; } } internal string DataDirectory { get { // ISSUE - what is the data directory for 'loose'? if (_form == ContextForm.Loose) return null; string s; // Note: passing in flag == 1. _actContext.GetApplicationStateFilesystemLocation(1, UIntPtr.Zero, IntPtr.Zero, out s); return s; } } // These internal methods to become public in Longhorn, when manifest APIs become public // in LH M7 this will be come IACS instead of ICMS. internal ICMS ActivationContextData { get { // this will be a true merge of deployment and application manifest contents (ACS, not CMS) // for now return only the contents of the application manifest, as most consumers only care about app manifest anyway return this.ApplicationComponentManifest; } } // Return the manifest of the first deployment component. internal ICMS DeploymentComponentManifest { get { if (_form == ContextForm.Loose) return (ICMS) _manifests[0]; return GetComponentManifest((IDefinitionIdentity)_definitionIdentities[0]); } } internal ICMS ApplicationComponentManifest { get { if (_form == ContextForm.Loose) return (ICMS) _manifests[_manifests.Count-1]; return GetComponentManifest((IDefinitionIdentity)_definitionIdentities[_definitionIdentities.Count-1]); } } internal ApplicationStateDisposition LastApplicationStateResult { get { // Return cached result. return _appRunState; } } internal ICMS GetComponentManifest(IDefinitionIdentity component) { object o; _actContext.GetComponentManifest(0, component, ref IsolationInterop.IID_ICMS, out o); return o as ICMS; } internal byte[] GetDeploymentManifestBytes() { object o; string manifestPath; if (_form == ContextForm.Loose) manifestPath = _manifestPaths[0]; else { _actContext.GetComponentManifest(0, (IDefinitionIdentity)_definitionIdentities[0], ref IsolationInterop.IID_IManifestInformation, out o); ((IManifestInformation)o).get_FullPath(out manifestPath); } return ReadBytesFromFile(manifestPath); } internal byte[] GetApplicationManifestBytes() { object o; string manifestPath; if (_form == ContextForm.Loose) manifestPath = _manifestPaths[_manifests.Count-1]; else { _actContext.GetComponentManifest(0, (IDefinitionIdentity)_definitionIdentities[1], ref IsolationInterop.IID_IManifestInformation, out o); ((IManifestInformation)o).get_FullPath(out manifestPath); } return ReadBytesFromFile(manifestPath); } // Internal methods used exclusively by application hosting code. internal void PrepareForExecution() { if (_form == ContextForm.Loose) return; // Do nothing. _actContext.PrepareForExecution(IntPtr.Zero, IntPtr.Zero); } internal ApplicationStateDisposition SetApplicationState(ApplicationState s) { if (_form == ContextForm.Loose) return ApplicationStateDisposition.Undefined; // Do nothing. UInt32 disposition; _actContext.SetApplicationRunningState(0, (UInt32)s, out disposition); // Save the result. _appRunState = (ApplicationStateDisposition)disposition; return _appRunState; } // Nested Enum. internal enum ApplicationState { Undefined = 0, Starting = 1, Running = 2 } internal enum ApplicationStateDisposition { Undefined = 0, Starting = 1, StartingMigrated = (1 | (1 << 16)), Running = 2, RunningFirstTime = (2 | (1 << 17)) } // Privates. private void Dispose(bool fDisposing) { // ISSUE- should release unmanaged objects in array lists. _applicationIdentity = null; _definitionIdentities = null; _manifests = null; _manifestPaths = null; if (_actContext != null) Marshal.ReleaseComObject(_actContext); } private static byte[] ReadBytesFromFile(string manifestPath) { byte[] rawBytes = null; using (FileStream fs = new FileStream(manifestPath, FileMode.Open, FileAccess.Read)) { int bufferSize = (int)fs.Length; // zero length file will except ultimately. rawBytes = new byte[bufferSize]; if (fs.CanSeek) { fs.Seek(0, SeekOrigin.Begin); } // Read the file into buffer. fs.Read(rawBytes, 0, bufferSize); } return rawBytes; } ///[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { if (_applicationIdentity != null) info.AddValue("FullName", _applicationIdentity.FullName, typeof(String)); if (_manifestPaths != null) info.AddValue("ManifestPaths", _manifestPaths, typeof(String[])); } } [Serializable()] [System.Runtime.InteropServices.ComVisible(false)] public sealed class ApplicationIdentity : ISerializable { private IDefinitionAppId _appId; private ApplicationIdentity () {} private ApplicationIdentity (SerializationInfo info, StreamingContext context) { string fullName = (string) info.GetValue("FullName", typeof(string)); if (fullName == null) throw new ArgumentNullException("fullName"); _appId = IsolationInterop.AppIdAuthority.TextToDefinition(0, fullName); } public ApplicationIdentity(String applicationIdentityFullName) { if (applicationIdentityFullName == null) throw new ArgumentNullException("applicationIdentityFullName"); _appId = IsolationInterop.AppIdAuthority.TextToDefinition(0, applicationIdentityFullName); } internal ApplicationIdentity(IDefinitionAppId applicationIdentity) { // ISSUE- this should clone the IDefintionAppId. _appId = applicationIdentity; } public String FullName { get { return IsolationInterop.AppIdAuthority.DefinitionToText(0, _appId); } } public String CodeBase { get { return _appId.get_Codebase(); } } public override string ToString() { return this.FullName; } internal IDefinitionAppId Identity { get { return _appId; } } /// [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { info.AddValue("FullName", FullName, typeof(String)); } } #endif // !FEATURE_PAL } namespace System.Deployment.Internal { #if !FEATURE_PAL // All classes in this namespace are only usable within CLR (enforced with Link demand/friend etc.) // This class will go away in LH, when the ApplicationDefinitionIdentity class exposes the functionality directly // [StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0x00000000000000000400000000000000"), // SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)] [System.Runtime.InteropServices.ComVisible(false)] public static class InternalApplicationIdentityHelper { public static object /* really IDefinitionAppId */ GetInternalAppId(ApplicationIdentity id) { return id.Identity; } } // This helper class will go away in LH, when the ActivationContext class exposes the functionality directly // [StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0x00000000000000000400000000000000"), // SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)] [System.Runtime.InteropServices.ComVisible(false)] public static class InternalActivationContextHelper { public static object /* really ICMS */ GetActivationContextData(ActivationContext appInfo) { return appInfo.ActivationContextData; } public static object GetApplicationComponentManifest(ActivationContext appInfo) { return appInfo.ApplicationComponentManifest; } public static object GetDeploymentComponentManifest(ActivationContext appInfo) { return appInfo.DeploymentComponentManifest; } public static void PrepareForExecution(ActivationContext appInfo) { appInfo.PrepareForExecution(); } public static bool IsFirstRun(ActivationContext appInfo) { return (appInfo.LastApplicationStateResult == ActivationContext.ApplicationStateDisposition.RunningFirstTime); } public static byte[] GetApplicationManifestBytes(ActivationContext appInfo) { if (appInfo == null) throw new ArgumentNullException("appInfo"); return appInfo.GetApplicationManifestBytes(); } public static byte[] GetDeploymentManifestBytes(ActivationContext appInfo) { if (appInfo == null) throw new ArgumentNullException("appInfo"); return appInfo.GetDeploymentManifestBytes(); } } #endif // !FEATURE_PAL }
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