Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / HttpCookieCollection.cs / 2 / HttpCookieCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Collection of Http cookies for request and response intrinsics * * Copyright (c) 1998 Microsoft Corporation */ namespace System.Web { using System.Runtime.InteropServices; using System.Collections; using System.Collections.Specialized; using System.Security.Permissions; using System.Web.Util; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class HttpCookieCollection : NameObjectCollectionBase { // Response object to notify about changes in collection private HttpResponse _response; // cached All[] arrays private HttpCookie[] _all; private String[] _allKeys; private bool _changed; internal HttpCookieCollection(HttpResponse response, bool readOnly) : base(StringComparer.OrdinalIgnoreCase) { _response = response; IsReadOnly = readOnly; } ////// Provides a type-safe /// way to manipulate HTTP cookies. /// ////// public HttpCookieCollection(): base(StringComparer.OrdinalIgnoreCase) { } internal bool Changed { get { return _changed; } set { _changed = value; } } internal void AddCookie(HttpCookie cookie, bool append) { _all = null; _allKeys = null; if (append) { // mark cookie as new cookie.Added = true; BaseAdd(cookie.Name, cookie); } else { if (BaseGet(cookie.Name) != null) { // mark the cookie as changed because we are overriding the existing one cookie.Changed = true; } BaseSet(cookie.Name, cookie); } } internal void RemoveCookie(String name) { _all = null; _allKeys = null; BaseRemove(name); _changed = true; } internal void Reset() { _all = null; _allKeys = null; BaseClear(); _changed = true; } // // Public APIs to add / remove // ////// Initializes a new instance of the HttpCookieCollection /// class. /// ////// public void Add(HttpCookie cookie) { if (_response != null) _response.BeforeCookieCollectionChange(); AddCookie(cookie, true); if (_response != null) _response.OnCookieAdd(cookie); } ////// Adds a cookie to the collection. /// ////// public void CopyTo(Array dest, int index) { if (_all == null) { int n = Count; _all = new HttpCookie[n]; for (int i = 0; i < n; i++) _all[i] = Get(i); } _all.CopyTo(dest, index); } ///[To be supplied.] ////// public void Set(HttpCookie cookie) { if (_response != null) _response.BeforeCookieCollectionChange(); AddCookie(cookie, false); if (_response != null) _response.OnCookieCollectionChange(); } ///Updates the value of a cookie. ////// public void Remove(String name) { if (_response != null) _response.BeforeCookieCollectionChange(); RemoveCookie(name); if (_response != null) _response.OnCookieCollectionChange(); } ////// Removes a cookie from the collection. /// ////// public void Clear() { Reset(); } // // Access by name // ////// Clears all cookies from the collection. /// ////// public HttpCookie Get(String name) { HttpCookie cookie = (HttpCookie)BaseGet(name); if (cookie == null && _response != null) { // response cookies are created on demand cookie = new HttpCookie(name); AddCookie(cookie, true); _response.OnCookieAdd(cookie); } return cookie; } ///Returns an ///item from the collection. /// public HttpCookie this[String name] { get { return Get(name);} } // // Indexed access // ///Indexed value that enables access to a cookie in the collection. ////// public HttpCookie Get(int index) { return(HttpCookie)BaseGet(index); } ////// Returns an ////// item from the collection. /// /// public String GetKey(int index) { return BaseGetKey(index); } ////// Returns key name from collection. /// ////// public HttpCookie this[int index] { get { return Get(index);} } // // Access to keys and values as arrays // /* * All keys */ ////// Default property. /// Indexed property that enables access to a cookie in the collection. /// ////// public String[] AllKeys { get { if (_allKeys == null) _allKeys = BaseGetAllKeys(); return _allKeys; } } } }/// Returns /// an array of all cookie keys in the cookie collection. /// ///
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