使用Sharepoint 2010 Client Object Model 通过SSL验证

做过Sharepoint的朋友应该都知道，如果我们想在客户端获取Sharepoint的数据，那么在2010中我们可以使用两种方式：

1：客户端对象模型 Client Object Model 

2:  此Web Services也可以在Sharepoint 2007中使用  Web Serivices 

 ok, 在使用Client Object Model时，需要引入两个组件，分别是Microsoft.Sharepoint.Client.dll,Microsoft.Sharepoint.Client.Runtime.dll

首先我们按照Client Object Model的说明写一个DEMO，访问公司的Sharepoint 

 1  static void Main(string[] args)
 2         {
 3             ClientContext clientContext = new ClientContext("https://[Sharepoint Server]");
 4 
 5             List list = clientContext.Web.Lists
 6                 .GetByTitle("Announcements");
 7             clientContext.Load(list);
 8             clientContext.ExecuteQuery();
 9             Console.WriteLine("List Title: {0}", list.Title);
10             CamlQuery camlQuery = new CamlQuery();
11             camlQuery.ViewXml = "<View/>";
12             ListItemCollection listItems = list.GetItems(camlQuery);
13             clientContext.Load(listItems);
14             clientContext.ExecuteQuery();
15             foreach (ListItem listItem in listItems)
16                 Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
17         }

执行ExecuteQuery()时发生The remote server returned an error: (403) Forbidden. 异常。

哦，权限异常，原来公司使用了安全套接字层(SSL),那么我们就需要证书（Certificate）来进行访问授权，需要提供Sharepoint服务器的证书,经过搜索Client Object Model With SSL后发现需要使用X509证书类,结合解决方案后代码如下:

 1  static void Main(string[] args)
 2         {
 3             ClientContext clientContext = new ClientContext("https://[Sharepoint Server]");
 4             ServicePointManager.ServerCertificateValidationCallback =
 5                    delegate(object sender1, X509Certificate certificate, X509Chain chain,
 6                             SslPolicyErrors sslPolicyErrors)
 7                    {
 8                        bool validationResult = true;
 9                        return validationResult;
10                    };
11             ServicePointManager.ServerCertificateValidationCallback +=
12                 customXertificateValidation2;
13             clientContext.ExecutingWebRequest += context_ExecutingWebRequest2;
14 
15             clientContext.AuthenticationMode = ClientAuthenticationMode.FormsAuthentication;
16             clientContext.FormsAuthenticationLoginInfo = new FormsAuthenticationLoginInfo(Username, Passwrod);
17             clientContext.ExecuteQuery();
18 
19             List list = clientContext.Web.Lists
20                 .GetByTitle("Announcements");
21             clientContext.Load(list);
22             clientContext.ExecuteQuery();
23             Console.WriteLine("List Title: {0}", list.Title);
24             CamlQuery camlQuery = new CamlQuery();
25             camlQuery.ViewXml = "<View/>";
26             ListItemCollection listItems = list.GetItems(camlQuery);
27             clientContext.Load(listItems);
28             clientContext.ExecuteQuery();
29             foreach (ListItem listItem in listItems)
30                 Console.WriteLine("Id: {0} Title: {1}", listItem.Id, listItem["Title"]);
31         }
32 
33         static void context_ExecutingWebRequest2(object sender, WebRequestEventArgs e)
34         {
35             HttpWebRequest webReq = e.WebRequestExecutor.WebRequest;
36             var certificateFile = AppDomain.CurrentDomain.BaseDirectory + @"\sharepoint.cer";
37             X509Certificate cert = X509Certificate.CreateFromCertFile(certificateFile);
38             webReq.ClientCertificates.Add(cert);
39         }
40 
41         private static bool customXertificateValidation2(object sender, X509Certificate cert, X509Chain chain, System.Net.Security.SslPolicyErrors error)
42         {
43             return true;
44         }

增加一个验证服务器证书的静态回调函数， 以及一个context的EventHandler<WebRequestEventArgs>，要使用SSL证书加密，必须要根据证书创建X509Certificate实例，执行ExecuteQuery后取得访问授权。结果如下：