如何通过sharepoint匿名下载文件没有登录C＃中的必需链接？ [英] How to donwload a file anonymously via a sharepoint no sign in required link in C#?

问题描述

我可以通过sharepoint下载文件，在提供用户和密码后无需在C＃中签名所需的链接，但如何在不提供用户和密码的情况下下载文件？

I can download a file via a sharepoint no sign in required link in C# after giving user and password, but how to download a file without provding user and password?

我的步骤

1。通过选择"查看链接 - 无需登录"，从sharepoint中的文件中获取链接（fileUrl）。

1. Get a link ( fileUrl ) from a file in sharepoint by selecting "View link - no sign-in required".

2。我的代码：

Microsoft.SharePoint.Client.ClientContext context = new Microsoft.SharePoint.Client.ClientContext（sharepointRootUrl）;

Microsoft.SharePoint.Client.ClientContext context = new Microsoft.SharePoint.Client.ClientContext( sharepointRootUrl );

SecureString passWord = new SecureString（）;

SecureString passWord = new SecureString();

string pw =" xxxxxxx";

string pw = "xxxxxxx";

foreach（var c in pw.ToCharArray（））passWord.AppendChar（c ）;

foreach (var c in pw.ToCharArray()) passWord.AppendChar(c);

string user =" xxxxxxxxx";

string user = "xxxxxxxxx";

context.Credentials = new SharePointOnlineCredentials（user，passWord）;

context.Credentials = new SharePointOnlineCredentials(user, passWord);

Microsoft.SharePoint.Client.File file = context.Web.GetFileByGuestUrl（fileUrl）;

Microsoft.SharePoint.Client.File file = context.Web.GetFileByGuestUrl( fileUrl );

...

推荐答案

您好，

以下是要下载的代码段来自Guest Link的文件供您参考：

Here is the code snippet to download file from Guest Link for your reference:

   string userName = "[e-mail]";
            string password = "xxx";
            var securePassword = new SecureString();
            foreach (char c in password)
            {
                securePassword.AppendChar(c);
            }
            using (var clientContext = new ClientContext("https://xxx.sharepoint.com/sites/xxx"))
            {
                clientContext.Credentials = new SharePointOnlineCredentials(userName, securePassword);
                Web web = clientContext.Web;
                clientContext.Load(web, a => a.ServerRelativeUrl);
                clientContext.ExecuteQuery();
                Microsoft.SharePoint.Client.File file = clientContext.Web.GetFileByGuestUrl("https://xxx.sharepoint.com/:x:/s/xxx/ESRjbSijEHhEvBiaiSDKVM0Bu9xFVhzxvwRrOby1--ROaQ");
                clientContext.Load(file);
                clientContext.ExecuteQuery();
                if (file != null)
                {
                    FileInformation fileInfo = File.OpenBinaryDirect(clientContext, file.ServerRelativeUrl);
                    clientContext.ExecuteQuery();

                    var folderpath = @"c:\downloadfolder";
                    if (!System.IO.Directory.Exists(folderpath))
                    {
                        System.IO.Directory.CreateDirectory(folderpath);
                    }
                    using (var fileStream = new System.IO.FileStream(folderpath + @"\" + file.Name, System.IO.FileMode.Create))
                    {
                        fileInfo.Stream.CopyTo(fileStream);
                    }
                }
            }

谢谢

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