C# 如何在 CookieContainer 中获取 cookie 信息？（所有这些，不针对特定领域）
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How to get cookies info inside of a CookieContainer? (All Of Them, Not For A Specific Domain)
提问by SilverLight
Please see the code below:
请看下面的代码：
CookieContainer cookieJar = new CookieContainer();
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://www.google.com");
request.CookieContainer = cookieJar;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
int cookieCount = cookieJar.Count;
How can I get cookies info inside cookieJar? (All of them, not just for a specific domain.)
And how can I add or remove a cookie from that?
我怎样才能在里面获取 cookie 信息cookieJar？（所有这些，而不仅仅是针对特定域。）
我如何从中添加或删除 cookie？
采纳答案by Parimal Raj
reflection can be used to get the private field that holds all the domain key in CookieContainer object,
反射可用于获取保存 CookieContainer 对象中所有域密钥的私有字段，
Q. How do i got the name of that private field ?
问：我如何获得那个私有字段的名称？
Ans. Using Reflector;
答。使用反射器；
its is declared as :
它被声明为：
private Hashtable m_domainTable;
once we get the private field, we will get the the domain key, then getting cookies is a simple iteration.
一旦我们获得了私有字段，我们就会获得域密钥，然后获得 cookie 就是一个简单的迭代。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Net;
using System.Collections;
namespace ConsoleApplication4
{
static class Program
{
private static void Main()
{
CookieContainer cookies = new CookieContainer();
cookies.Add(new Cookie("name1", "value1", "/", "domain1.com"));
cookies.Add(new Cookie("name2", "value2", "/", "domain2.com"));
Hashtable table = (Hashtable)cookies.GetType().InvokeMember(
"m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
cookies,
new object[]{}
);
foreach (var key in table.Keys)
{
Uri uri = new Uri(string.Format("http://{0}/", key));
foreach (Cookie cookie in cookies.GetCookies(uri))
{
Console.WriteLine("Name = {0} ; Value = {1} ; Domain = {2}",
cookie.Name, cookie.Value, cookie.Domain);
}
}
Console.Read();
}
}
}
回答by Rafael Fernandes
If you were to write a nUnit test, it would be something like this:
如果您要编写 nUnit 测试，它将是这样的：
[Test]
public void Test()
{
CookieContainer cookies = new CookieContainer();
cookies.Add(new Cookie("name1", "value1", "/", "www.domain1.com"));
cookies.Add(new Cookie("name2", "value2", "/", "www.domain2.com"));
Hashtable table = (Hashtable)cookies.GetType().InvokeMember("m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
cookies,
new object[] { });
foreach (var key in table.Keys)
{
foreach (Cookie cookie in cookies.GetCookies(new Uri(string.Format("http://{0}/", key.ToString().Substring(1,key.ToString().Length - 1)))))
{
Assert.That(cookie != null);
//Console.WriteLine("Name = {0} ; Value = {1} ; Domain = {2}", cookie.Name, cookie.Value,
// cookie.Domain);
}
}
}
回答by antfx
Thank's to AppDeveloper for their answer, here is a slightly modified version as an extension method.
感谢 AppDeveloper 的回答，这里有一个稍微修改的版本作为扩展方法。
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
public static class CookieContainerExtension
{
public static List<Cookie> List(this CookieContainer container)
{
var cookies = new List<Cookie>();
var table = (Hashtable)container.GetType().InvokeMember("m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
container,
new object[] { });
foreach (var key in table.Keys)
{
Uri uri = null;
var domain = key as string;
if (domain == null)
continue;
if (domain.StartsWith("."))
domain = domain.Substring(1);
var address = string.Format("http://{0}/", domain);
if (Uri.TryCreate(address, UriKind.RelativeOrAbsolute, out uri) == false)
continue;
foreach (Cookie cookie in container.GetCookies(uri))
{
cookies.Add(cookie);
}
}
return cookies;
}
}
To get the list just call List() on the CookieContainer:
要获取列表，只需在 CookieContainer 上调用 List()：
CookieContainer cookies = new CookieContainer();
cookies.Add(new Cookie("name1", "value1", "/", "www.domain1.com"));
cookies.Add(new Cookie("name2", "value2", "/", "www.domain2.com"));
List<Cookie> cookieList = cookies.List();
回答by Adrian Lopez
Improved version of PaRiMal RaJ's code. This method will print both, http and https cookies. Ready to paste it in your class.
PaRiMal RaJ 代码的改进版本。此方法将同时打印 http 和 https cookie。准备将其粘贴到您的班级中。
// Paste this dependencies in your class
using System;
using System.Net;
using System.Linq;
using System.Reflection;
using System.Collections;
using System.Collections.Generic;
/// <summary>
/// It prints all cookies in a CookieContainer. Only for testing.
/// </summary>
/// <param name="cookieJar">A cookie container</param>
public void PrintCookies (CookieContainer cookieJar)
{
try
{
Hashtable table = (Hashtable) cookieJar
.GetType().InvokeMember("m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
cookieJar,
new object[] {});
foreach (var key in table.Keys)
{
// Look for http cookies.
if (cookieJar.GetCookies(
new Uri(string.Format("http://{0}/", key))).Count > 0)
{
Console.WriteLine(cookieJar.Count+" HTTP COOKIES FOUND:");
Console.WriteLine("----------------------------------");
foreach (Cookie cookie in cookieJar.GetCookies(
new Uri(string.Format("http://{0}/", key))))
{
Console.WriteLine(
"Name = {0} ; Value = {1} ; Domain = {2}",
cookie.Name, cookie.Value,cookie.Domain);
}
}
// Look for https cookies
if (cookieJar.GetCookies(
new Uri(string.Format("https://{0}/", key))).Count > 0)
{
Console.WriteLine(cookieJar.Count+" HTTPS COOKIES FOUND:");
Console.WriteLine("----------------------------------");
foreach (Cookie cookie in cookieJar.GetCookies(
new Uri(string.Format("https://{0}/", key))))
{
Console.WriteLine(
"Name = {0} ; Value = {1} ; Domain = {2}",
cookie.Name, cookie.Value,cookie.Domain);
}
}
}
}
catch(Exception e)
{
Console.WriteLine (e);
}
}
回答by GoonPontoon
Here's an Extension that combines antfx's code with Adrian Lopez's idea of using both http and https. Just a quick fix for anyone who might find it useful:
这是一个扩展，它结合了 antfx 的代码和 Adrian Lopez 使用 http 和 https 的想法。对于可能会发现它有用的任何人来说，这只是一个快速修复：
public static class CookieContainerExtensions
{
public static List<Cookie> List(this CookieContainer container)
{
var cookies = new List<Cookie>();
var table = (Hashtable)container.GetType().InvokeMember("m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
container,
new object[] { });
foreach (var key in table.Keys)
{
var domain = key as string;
if (domain == null)
continue;
if (domain.StartsWith("."))
domain = domain.Substring(1);
var httpAddress = string.Format("http://{0}/", domain);
var httpsAddress = string.Format("https://{0}/", domain);
if (Uri.TryCreate(httpAddress, UriKind.RelativeOrAbsolute, out var httpUri))
{
foreach (Cookie cookie in container.GetCookies(httpUri))
{
cookies.Add(cookie);
}
}
if (Uri.TryCreate(httpsAddress, UriKind.RelativeOrAbsolute, out var httpsUri))
{
foreach (Cookie cookie in container.GetCookies(httpsUri))
{
cookies.Add(cookie);
}
}
}
return cookies;
}
}
回答by JJS
None of the answers worked for me. This is my humble solution for the problem.
没有一个答案对我有用。这是我对这个问题的简陋解决方案。
public static List<Cookie> List(this CookieContainer container)
{
var cookies = new List<Cookie>();
var table = (Hashtable)container.GetType().InvokeMember("m_domainTable",
BindingFlags.NonPublic |
BindingFlags.GetField |
BindingFlags.Instance,
null,
container,
null);
foreach (string key in table.Keys)
{
var item = table[key];
var items = (ICollection) item.GetType().GetProperty("Values").GetGetMethod().Invoke(item, null);
foreach (CookieCollection cc in items)
{
foreach (Cookie cookie in cc)
{
cookies.Add(cookie);
}
}
}
return cookies;
}
