nyaou.com

SharePoint Onlineから指定したURLのファイルを指定したフォルダにダウンロードする

2020-07-15 22:48:41

var mail = "ログインメアド";
var pass = "ログインパスワード";

// ▽以下、ダウンロードしたいファイルのあるURLに置き換え。
var siteUrl = "https://nyaoudev.sharepoint.com/sites/nyaouDev/";
var relativeUrl = "/sites/nyaouDev/Shared Documents/General/";
var downloadFileName = "111.xlsx";
var restUrl  = @"/_api/web/GetFileByServerRelativeUrl('" + relativeUrl  + downloadFileName + "')/$value";
Uri endpointUri = new Uri(siteUrl + restUrl);

var downloadLocalFolder = @"ダウンロード先のローカルPCのパス";

SecureString secureString = new SecureString();
foreach (char c in pass.ToCharArray())
{
    secureString.AppendChar(c);
}
ICredentials credentials = new SharePointOnlineCredentials(mail, secureString);

using (WebClient client = new WebClient())
{
    client.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f");
    client.Credentials = credentials;

    byte[] data = client.DownloadData(endpointUri);
    FileStream outputStream = new FileStream(downloadLocalFolder + downloadFileName, FileMode.Create, FileAccess.Write, FileShare.None);
    outputStream.Write(data, 0, data.Length);
    outputStream.Flush(true);
    outputStream.Close();
}

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