Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Profile / ProfileModule.cs / 3 / ProfileModule.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * ProfileModule class * * Copyright (c) 1999 Microsoft Corporation */ namespace System.Web.Profile { using System.Web; using System.Text; using System.Web.Compilation; using System.Web.Configuration; using System.Web.Caching; using System.Collections; using System.Web.Util; using System.Security.Principal; using System.Security.Permissions; using System.Reflection; using System.Web.Security; using System.Globalization; using System.Runtime.Serialization; using System.Collections.Specialized; using System.Runtime.Serialization.Formatters.Binary; using System.IO; using System.Xml.Serialization; using System.ComponentModel; using System.Configuration; #if !FEATURE_PAL using System.Web.DataAccess; #endif // !FEATURE_PAL ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)] public sealed class ProfileModule : IHttpModule { private static object s_Lock = new object(); private ProfileEventHandler _eventHandler = null; private ProfileMigrateEventHandler _MigrateEventHandler; private ProfileAutoSaveEventHandler _AutoSaveEventHandler; ///[To be supplied.] ////// [SecurityPermission(SecurityAction.Demand, Unrestricted = true)] public ProfileModule() { } ////// Initializes a new instance of the ////// class. /// /// This is a Global.asax event which must be /// named FormsAuthorize_OnAuthorize event. It's used by advanced users to /// customize cookie authentication. /// public event ProfileEventHandler Personalize { add { _eventHandler += value; } remove { _eventHandler -= value; } } public event ProfileMigrateEventHandler MigrateAnonymous { add { _MigrateEventHandler += value; } remove { _MigrateEventHandler -= value; } } public event ProfileAutoSaveEventHandler ProfileAutoSaving { add { _AutoSaveEventHandler += value; } remove { _AutoSaveEventHandler -= value; } } ////// public void Dispose() { } ///[To be supplied.] ////// public void Init(HttpApplication app) { if (ProfileManager.Enabled) { app.AcquireRequestState += new EventHandler(this.OnEnter); if (ProfileManager.AutomaticSaveEnabled) { app.EndRequest += new EventHandler(this.OnLeave); } } } private void OnPersonalize(ProfileEventArgs e) { if (_eventHandler != null) _eventHandler(this, e); if (e.Profile != null) { e.Context._Profile = e.Profile; return; } e.Context._ProfileDelayLoad = true; } //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// ///[To be supplied.] ////// private void OnEnter(Object source, EventArgs eventArgs) { HttpContext context = ((HttpApplication)source).Context; OnPersonalize(new ProfileEventArgs(context)); if (context.Request.IsAuthenticated && !string.IsNullOrEmpty(context.Request.AnonymousID) && _MigrateEventHandler != null) { ProfileMigrateEventArgs e = new ProfileMigrateEventArgs(context, context.Request.AnonymousID); _MigrateEventHandler(this, e); } } private void OnLeave(Object source, EventArgs eventArgs) { HttpApplication app = (HttpApplication)source; HttpContext context = app.Context; if (context._Profile == null || (object)context._Profile == (object)ProfileBase.SingletonInstance) return; if (_AutoSaveEventHandler != null) { ProfileAutoSaveEventArgs args = new ProfileAutoSaveEventArgs(context); _AutoSaveEventHandler(this, args); if (!args.ContinueWithProfileAutoSave) return; } context.Profile.Save(); } //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// [SecurityPermission(SecurityAction.Assert, Flags = SecurityPermissionFlag.SerializationFormatter)] internal static void ParseDataFromDB(string[] names, string values, byte[] buf, SettingsPropertyValueCollection properties) { if (names == null || values == null || buf == null || properties == null) return; try { for (int iter = 0; iter < names.Length / 4; iter++) { string name = names[iter * 4]; SettingsPropertyValue pp = properties[name]; if (pp == null) // property not found continue; int startPos = Int32.Parse(names[iter * 4 + 2], CultureInfo.InvariantCulture); int length = Int32.Parse(names[iter * 4 + 3], CultureInfo.InvariantCulture); if (length == -1 && !pp.Property.PropertyType.IsValueType) // Null Value { pp.PropertyValue = null; pp.IsDirty = false; pp.Deserialized = true; } if (names[iter * 4 + 1] == "S" && startPos >= 0 && length > 0 && values.Length >= startPos + length) { pp.SerializedValue = values.Substring(startPos, length); } if (names[iter * 4 + 1] == "B" && startPos >= 0 && length > 0 && buf.Length >= startPos + length) { byte[] buf2 = new byte[length]; Buffer.BlockCopy(buf, startPos, buf2, 0, length); pp.SerializedValue = buf2; } } } catch { // Eat exceptions } } //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// [SecurityPermission(SecurityAction.Assert, Flags = SecurityPermissionFlag.SerializationFormatter)] internal static void PrepareDataForSaving(ref string allNames, ref string allValues, ref byte[] buf, bool binarySupported, SettingsPropertyValueCollection properties, bool userIsAuthenticated) { StringBuilder names = new StringBuilder(); StringBuilder values = new StringBuilder(); MemoryStream ms = (binarySupported ? new System.IO.MemoryStream() : null); try { try { bool anyItemsToSave = false; foreach (SettingsPropertyValue pp in properties) { if (pp.IsDirty) { if (!userIsAuthenticated) { bool allowAnonymous = (bool)pp.Property.Attributes["AllowAnonymous"]; if (!allowAnonymous) continue; } anyItemsToSave = true; break; } } if (!anyItemsToSave) return; foreach (SettingsPropertyValue pp in properties) { if (!userIsAuthenticated) { bool allowAnonymous = (bool)pp.Property.Attributes["AllowAnonymous"]; if (!allowAnonymous) continue; } if (!pp.IsDirty && pp.UsingDefaultValue) // Not fetched from DB and not written to continue; int len = 0, startPos = 0; string propValue = null; if (pp.Deserialized && pp.PropertyValue == null) // is value null? { len = -1; } else { object sVal = pp.SerializedValue; if (sVal == null) { len = -1; } else { if (!(sVal is string) && !binarySupported) { sVal = Convert.ToBase64String((byte[])sVal); } if (sVal is string) { propValue = (string)sVal; len = propValue.Length; startPos = values.Length; } else { byte[] b2 = (byte[])sVal; startPos = (int)ms.Position; ms.Write(b2, 0, b2.Length); ms.Position = startPos + b2.Length; len = b2.Length; } } } names.Append(pp.Name + ":" + ((propValue != null) ? "S" : "B") + ":" + startPos.ToString(CultureInfo.InvariantCulture) + ":" + len.ToString(CultureInfo.InvariantCulture) + ":"); if (propValue != null) values.Append(propValue); } if (binarySupported) { buf = ms.ToArray(); } } finally { if (ms != null) ms.Close(); } } catch { throw; } allNames = names.ToString(); allValues = values.ToString(); } } public delegate void ProfileMigrateEventHandler(Object sender, ProfileMigrateEventArgs e); [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class ProfileMigrateEventArgs : EventArgs { private HttpContext _Context; private string _AnonymousId; public HttpContext Context { get { return _Context;}} public string AnonymousID { get { return _AnonymousId;}} public ProfileMigrateEventArgs(HttpContext context, string anonymousId) { _Context = context; _AnonymousId = anonymousId; } } public delegate void ProfileAutoSaveEventHandler(Object sender, ProfileAutoSaveEventArgs e); [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class ProfileAutoSaveEventArgs : EventArgs { private HttpContext _Context; private bool _ContinueSave = true; public HttpContext Context { get { return _Context; } } public bool ContinueWithProfileAutoSave { get { return _ContinueSave; } set { _ContinueSave = value; }} public ProfileAutoSaveEventArgs(HttpContext context) { _Context = context; } } }[To be supplied.] ///
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