Windows Phone 7 Mango保存一个cookicontainer的状态

本文关键字:一个 cookicontainer 状态 Phone Mango 保存 Windows | 更新日期: 2023-09-27 18:09:38

update1:经过更多的研究,我不确定这是可能的,我创建了一个UserVoice条目来修复它。

我试图保存CookieContainer在应用程序退出或墓碑发生时,但我遇到了一些问题。

我尝试在AppSettings中保存CookieContainer,但是当加载时,cookie消失了。

Researching this internally, DataContractSerializer cannot serialize cookies.
This seems to be a behavior that Windows Phone inherited from Silverlight's DataContractSerializer.

在做了更多的研究之后,似乎解决办法是从容器中抓取饼干并以另一种方式保存它们。在我遇到另一个问题之前,一切都很顺利。我无法用。mydomain.com的Uri获取cookie。我想是因为这个虫子。我可以在domaintable中看到cookie。mydomain.com,但是GetCookies对特定的cookie不起作用。

这个错误在这里再次发布。

从容器中取出饼干也有一个问题当域以。:

开头时
CookieContainer container = new CookieContainer();
container.Add(new Cookie("x", "1", "/", ".blah.com"));
CookieCollection cv = container.GetCookies(new Uri("http://blah.com"));
cv = container.GetCookies(new Uri("http://w.blah.com"));

我找到了一个工作,使用反射来迭代domaintable并删除'。"前缀。

private void BugFix_CookieDomain(CookieContainer cookieContainer)
{
    System.Type _ContainerType = typeof(CookieContainer);
    var = _ContainerType.InvokeMember("m_domainTable",
                               System.Reflection.BindingFlags.NonPublic |
                               System.Reflection.BindingFlags.GetField |
                               System.Reflection.BindingFlags.Instance,
                               null,
                               cookieContainer,
                               new object[] { });
    ArrayList keys = new ArrayList(table.Keys);
    foreach (string keyObj in keys)
    {
        string key = (keyObj as string);
        if (key[0] == '.')
        {
            string newKey = key.Remove(0, 1);
            table[newKey] = table[keyObj];
        }
    }
}

只有当InvokeMember被调用时,在SL中抛出了一个MethodAccessException。这并不能真正解决我的问题,因为我需要保留的cookie之一是HttpOnly,这是CookieContainer的原因之一。

如果服务器发送HTTPOnly cookie,您应该创建一个System.Net.CookieContainer上保存cookie的请求,尽管您将无法看到或访问这些cookie

有什么想法吗?我是不是错过了什么简单的东西?是否有另一种方法来保存状态的CookieContainer或我需要保存用户信息,包括密码和重新认证他们每次应用程序启动,当从墓碑回来?

Windows Phone 7 Mango保存一个cookicontainer的状态

我已经专门编写了一个CookieSerializer来解决这个问题。序列化器粘贴在下面。对于一个工作的项目和场景,请访问项目的CodePlex站点。

public static class CookieSerializer
{
    /// <summary>
    /// Serializes the cookie collection to the stream.
    /// </summary>
    /// <param name="cookies">You can obtain the collection through your <see cref="CookieAwareWebClient">WebClient</see>'s <code>CookieContainer.GetCookies(Uri)</code>-method.</param>
    /// <param name="address">The <see cref="Uri">Uri</see> that produced the cookies</param>
    /// <param name="stream">The stream to which to serialize</param>
    public static void Serialize(CookieCollection cookies, Uri address, Stream stream)
    {
        using (var writer = new StreamWriter(stream))
        {
            for (var enumerator = cookies.GetEnumerator(); enumerator.MoveNext();)
            {
                var cookie = enumerator.Current as Cookie;
                if (cookie == null) continue;
                writer.WriteLine(address.AbsoluteUri);
                writer.WriteLine(cookie.Comment);
                writer.WriteLine(cookie.CommentUri == null ? null : cookie.CommentUri.AbsoluteUri);
                writer.WriteLine(cookie.Discard);
                writer.WriteLine(cookie.Domain);
                writer.WriteLine(cookie.Expired);
                writer.WriteLine(cookie.Expires);
                writer.WriteLine(cookie.HttpOnly);
                writer.WriteLine(cookie.Name);
                writer.WriteLine(cookie.Path);
                writer.WriteLine(cookie.Port);
                writer.WriteLine(cookie.Secure);
                writer.WriteLine(cookie.Value);
                writer.WriteLine(cookie.Version);
            }
        }
    }
    /// <summary>
    /// Deserializes <see cref="Cookie">Cookie</see>s from the <see cref="Stream">Stream</see>, 
    /// filling the <see cref="CookieContainer">CookieContainer</see>.
    /// </summary>
    /// <param name="stream">Stream to read</param>
    /// <param name="container">Container to fill</param>
    public static void Deserialize(Stream stream, CookieContainer container)
    {
        using (var reader = new StreamReader(stream))
        {
            while (!reader.EndOfStream)
            {
                var uri = Read(reader, absoluteUri => new Uri(absoluteUri, UriKind.Absolute));
                var cookie = new Cookie();
                cookie.Comment = Read(reader, comment => comment);
                cookie.CommentUri = Read(reader, absoluteUri => new Uri(absoluteUri, UriKind.Absolute));
                cookie.Discard = Read(reader, bool.Parse);
                cookie.Domain = Read(reader, domain => domain);
                cookie.Expired = Read(reader, bool.Parse);
                cookie.Expires = Read(reader, DateTime.Parse);
                cookie.HttpOnly = Read(reader, bool.Parse);
                cookie.Name = Read(reader, name => name);
                cookie.Path = Read(reader, path => path);
                cookie.Port = Read(reader, port => port);
                cookie.Secure = Read(reader, bool.Parse);
                cookie.Value = Read(reader, value => value);
                cookie.Version = Read(reader, int.Parse);
                container.Add(uri, cookie);
            }
        }
    }
    /// <summary>
    /// Reads a value (line) from the serialized file, translating the string value into a specific type
    /// </summary>
    /// <typeparam name="T">Target type</typeparam>
    /// <param name="reader">Input stream</param>
    /// <param name="translator">Translation function - translate the read value into 
    /// <typeparamref name="T"/> if the read value is not <code>null</code>.
    /// <remarks>If the target type is <see cref="Uri">Uri</see> , the value is considered <code>null</code> if it's an empty string.</remarks> </param>
    /// <param name="defaultValue">The default value to return if the read value is <code>null</code>.
    /// <remarks>The translation function will not be called for null values.</remarks></param>
    /// <returns></returns>
    private static T Read<T>(TextReader reader, Func<string, T> translator, T defaultValue = default(T))
    {
        var value = reader.ReadLine();
        if (value == null)
            return defaultValue;
        if (typeof(T) == typeof(Uri) && String.IsNullOrEmpty(value))
            return defaultValue;
        return translator(value);
    }
}

在WP7中,即使使用反射,也不能访问程序集之外的私有成员。这是一种安全措施,确保你不能调用内部系统api。

看来你运气不好。

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