using System;

using System.IO;

using System.Net;

using System.Collections.Specialized;

namespace SharePointVisitUtilities

{

public static class SharePointFileHelper

{

// 上传文件

//

// 参数

// 上传的文件在SharePoint上的位置，要上传的本地文件的路径名，用户名，密码，域

public static string UploadFile(string strDestUrl, string strFilePathName, string strUserName, string strPassword, string strDomain)

{

string strResult = "Success";

try

{

string strFileName = Path.GetFileName(strFilePathName);

string strCopiedFilePathName = Path.GetTempPath() + strFileName;

// 将文件拷贝到临时文件夹

// 目的是可以在文件在被打开状态下还可以上传

File.Copy(strFilePathName, strCopiedFilePathName, true);

// 打开拷贝到临时目录下的文件

FileStream fs = new FileStream(strCopiedFilePathName, FileMode.Open, FileAccess.Read);

// 读文件

BinaryReader br = new BinaryReader(fs);

Byte[] filecontents = br.ReadBytes((int)fs.Length);

br.Close();

fs.Close();

WebClient webclient = CreateWebClient(strUserName, strPassword, strDomain);

// 上传

webclient.UploadData(strDestUrl + strFileName, "PUT", filecontents);

}

catch (Exception ex)

{

strResult = "Failed! " + ex.Message;

}

return strResult;

}

// 下载文件

//

// 参数

// 下载的文件在SharePoint上的位置，文件下载后存放的本地文件夹路径，用户名，密码，域

public static string DownloadFile(string strSourceUrl, string strDestFolder, string strUserName, string strPassword, string strDomain)

{

string strResult = "Success";

try

{

WebClient webclient = CreateWebClient(strUserName, strPassword, strDomain);

// 下载

Byte[] filecontents = webclient.DownloadData(strSourceUrl);

string strFileName = Path.GetFileName(strSourceUrl);

// 创建文件

FileStream fs = new FileStream(strDestFolder + strFileName, FileMode.Create, FileAccess.Write);

// 写文件

fs.Write(filecontents, 0, filecontents.Length);

fs.Close();

}

catch (Exception ex)

{

strResult = "failed! " + ex.Message;

}

return strResult;

}

// 创建WebClient

// 参数：用户名，密码，域（用来登陆SharePoint）

private static WebClient CreateWebClient(string strUserName, string strPassword, string strDomain)

{

WebClient webclient = new WebClient();

if (String.IsNullOrEmpty(strUserName))

{

webclient.UseDefaultCredentials = true;

}

else

{

NetworkCredential credential = new NetworkCredential(strUserName, strPassword, strDomain);

webclient.Credentials = credential;

}

return webclient;

}

}

}