如何使用C＃獲取本地保存箱文件的共享網址

Question

我使用DropNet API檢索本地文件的共享鏈接，但無法通過GetAccessToken（），因爲它爲空。

這是到目前爲止我的代碼：

var _client = new DropNetClient(APIKEY, APISEC); 
_client.GetToken(); 
var url = _client.BuildAuthorizeUrl(); 
Process.Start(url); 
var accessToken = _client.GetAccessToken();      
var shareResponse = _client.GetShare("/Getting Started.rtf"); 
MessageBox.Show(shareResponse.Url); 

例外在GetShare（）拋出：

System.Reflection.TargetInvocationException 

它必須是一些與我如何啓動瀏覽器，但我一直在這幾個小時，感謝任何幫助！

Answer 1

經過數小時後，我終於找到了Spring.Social（來自NuGet）的體面文檔。

這就是：

1. 註冊一個新的應用程序在此鏈接到你的程序：DropBox/Developer/Apps

2. 安裝NuGet包Spring.Social.Dropbox。

3. 使用下面的示例進行連接。

   using Spring.Social.Dropbox.Api; 
   using Spring.Social.Dropbox.Connect; 
   using Spring.Social.OAuth1; 
   
   private void ShareViaDropbox(string[,] filesNameLink) 
   { 
       try 
       { 
        if (CheckForInternetConnection()) // cant use dropbox without internet. 
        { 
         string consumerKey = "<get this from dropbox>"; 
         string consumerSecret = "<get this from dropbox>"; 
   
         DropboxServiceProvider dropboxServiceProvider = new DropboxServiceProvider(consumerKey, consumerSecret, AccessLevel.Full); 
         IOAuth1Operations oauthOperations = dropboxServiceProvider.OAuthOperations; 
   
         // I used an xml file to store the key (probably not the most secure later I will write an encryption). 
         string[] storedToken = GetTag("<DropBoxToken>", ",").Split(','); 
         OAuthToken oauthAccessToken = new OAuthToken(storedToken[0], storedToken[1]); 
   
         // testing if we got something from the earlier xml tag. 
         if (oauthAccessToken.Value == string.Empty || oauthAccessToken.Value == "") 
         { 
          Console.Write("Getting request token..."); 
          OAuthToken oauthToken = dropboxServiceProvider.OAuthOperations.FetchRequestTokenAsync(null, null).Result; 
          Console.WriteLine("Done"); 
          OAuth1Parameters parameters = new OAuth1Parameters(); 
          string authenticateUrl = dropboxServiceProvider.OAuthOperations.BuildAuthorizeUrl(oauthToken.Value, parameters); 
   
          Console.WriteLine("Redirect user for authorization"); 
   
          // let the user know they have to sign in and chose the correct dropbox. this is also where most documentation leaves off! 
          MessageBox.Show(
           "This is the first time you have connected to DropBox. A browser will open and direct you the the DropBox authentication page. When you prompted, please sign in and then choose the [named] DropBox." + Environment.NewLine + 
           "Once you have succesfully compleaded the authorization confirmation from DropBox, you may close the browser to continue." + Environment.NewLine + 
           Environment.NewLine + 
           "Click 'Ok' to proceed", "DropBox Authentication Required.", MessageBoxButtons.OK, MessageBoxIcon.Information); 
          Process.Start(authenticateUrl); 
   
          // halt the program until the user has authenticated. 
          MessageBox.Show("Click 'OK' when authorization has succeeded.", "DropBox Authentication - WAIT", MessageBoxButtons.OK, MessageBoxIcon.Stop); 
          Console.Write("Press any key when authorization attempt has succeeded"); 
          Console.Write("Getting access token..."); 
          AuthorizedRequestToken requestToken = new AuthorizedRequestToken(oauthToken, null); 
          oauthAccessToken = dropboxServiceProvider.OAuthOperations.ExchangeForAccessTokenAsync(requestToken, null).Result; 
          Console.WriteLine("Done"); 
          ChangeTag("<DropBoxToken>", oauthAccessToken.Value + "," + oauthAccessToken.Secret); // update the xml file with the token.       
         } 
   
         IDropbox dropbox = dropboxServiceProvider.GetApi(oauthAccessToken.Value, oauthAccessToken.Secret); 
         DropboxLink shareableLink; 
         double filesNameLength = Math.Ceiling(Convert.ToDouble(filesNameLink.Length/2)); 
   
         // remove everything before the users special folder path including the dropbbox folder. 
         // then change all the switches to front from back for the web. 
         for (int i = 0; i < filesNameLength; i++) 
         { 
          filesNameLink[i, 1] = filesNameLink[i, 0]; 
          filesNameLink[i, 0] = Path.GetFileName(filesNameLink[i, 0]); 
          filesNameLink[i, 1] = filesNameLink[i, 1].Replace(dropboxRootDir, "").Replace("\\", "/"); 
          shareableLink = dropbox.GetShareableLinkAsync(filesNameLink[i, 1].Replace("\\", "/")).Result; 
          filesNameLink[i, 1] = shareableLink.Url; 
         } 
         // do something with the link(s). // 
         catch { } 
        } 
       } 
       catch { } 
   }