2

我正在尝试使用下载 Office 365 SharePoint 库中存在的项目，WebcClient.DownloadFile()但出现此异常：

例外 ：

The remote server returned an error: (403) Forbidden.

示例代码：

NetworkCredential credential = new NetworkCredential("username", "password", "aaa.onmicrosoft.com");
WebClient webClient = new WebClient();
webClient.Credentials = credential;
webClient.DownloadFile(@"https://aaa.sharepoint.com/testDoc/test.pdf", @"c:/test.pdf");
4

3 回答 3

6

另一种选择是利用SharePoint Online Client Components SDK中的 SharePointOnlineCredentials 类。

SharePointOnlineCredentials 类表示提供凭据以访问 SharePoint Online 资源的对象

先决条件

SharePoint Online 客户端组件 SDK

如何从 SharePoint Online 下载文件

 public static void DownloadFile(string userName, string password, string fileUrl, string filePath)
 {
        var securePassword = new SecureString();
        foreach (var c in password)
        {
            securePassword.AppendChar(c);
        }
        using (var client = new WebClient())
        {
            client.Credentials = new SharePointOnlineCredentials(userName, securePassword);
            client.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f");
            client.DownloadFile(fileUrl, filePath);
        }
}
于 2014-08-28T11:17:12.453 回答
2

在朋友的帮助下，我设法破解了这个 SharePoint 在线身份验证的东西 :)

我被Wictor Wilén指出了这篇博文的方向。

而我的使用 Wictors 声明库代码的 WebClient 调用......

var claimsHelper = new MsOnlineClaimsHelper(sharepointOnlineUrl, username, password);

var client = new WebClient();
client.Headers[ "Accept" ] = "/";
client.Headers.Add(HttpRequestHeader.UserAgent, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");
client.Headers.Add(HttpRequestHeader.Cookie, claimsHelper.CookieContainer.GetCookieHeader(new Uri(sharepointOnlineUrl))  );

var document = client.DownloadString( documentUrl );
于 2012-10-31T12:52:34.623 回答
2

您需要添加一些内容来解决您的问题，称为 Headers 和 UserAgent。

 public static void method()
        {
         //   NetworkCredential myCredentials = new NetworkCredential("username", "password", "aaa.onmicrosoft.com");
            WebClient w = new WebClient();
            var ua = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)";
            w.Headers["Accept"] = "/";
            w.Headers.Add(HttpRequestHeader.UserAgent, ua);
            w.Credentials = myCredentials;
          w.DownloadFile(url, @"c:/name.doc"); 
        }

它从 Office 365 中的团队站点库为我下载文件。但它给了我一个下载的文件。我剩下的唯一问题：该文件不包含您要下载的真实信息。我正在尝试解决这个问题几天 - 这是我迄今为止得到的最好结果。也许你可以用这些新信息帮助我。请告诉我:)

于 2012-10-03T07:43:32.567 回答