public void listFiles()
{
try
{
start();
DriveConnection.listFiles(driveService);
} catch (Exception e)
{
MessageBox.Show("An error happened: " + e.ToString(), "Error", MessageBoxButtons.OK);
}
}
public bool removeLink(string path)
{
try
{
start();
return(DriveConnection.deleteFile(driveService, path));
} catch (Exception e)
{
MessageBox.Show("An error happened: " + e.ToString(), "Error", MessageBoxButtons.OK);
return(false);
}
}
private void start()
{
if (!started)
{
//Will set this.driveService and authenticate
driveService = DriveConnection.startServerConnection(ref Scopes,
deployLocation + "\\" + "embedinfile-db8ffaf7c414.p12",
"embedInFile", out credential);
//If root folder has not been created for this user, create it
createRootFolder();
started = true;
}
}
/// <summary>
/// Uploads a file to drive and creates a link to it, displayed in cc.
/// </summary>
/// <param name="cc">The word content control to write the link to</param>
/// <param name="absolutePath">The absolute path to the file to upload</param>
/// <param name="name">The name of the file</param>
/// <returns>true if the operation was successful, false otherwise</returns>
public async Task <String> uploadLink(Word.Range cc, string absolutePath, string name)
{
try
{
start();
FileStream inputfile = DriveConnection.getFile(absolutePath); //File to upload
string result = await uploadLargeFileAsync(cc, inputfile, absolutePath, name);
return(result);
} catch (Exception e)
{
MessageBox.Show("An error happened: " + e.ToString(), "Error", MessageBoxButtons.OK);
return("");
}
}
/// <summary>
/// uploads a potentially large file to google drive and stores the link in cc.
/// </summary>
/// <param name="cc"></param>
/// <param name="stream"></param>
/// <param name="fileName"></param>
/// <param name="docName"></param>
/// <returns></returns>
private async Task <String> uploadLargeFileAsync(Word.Range cc, FileStream stream,
string absolutePath, string name)
{
//Create drive File object with the file name
var fileMetadata = new Google.Apis.Drive.v3.Data.File()
{
Name = name
};
//Create the request for uploading a large audio file
FilesResource.CreateMediaUpload request;
request = driveService.Files.Create(
fileMetadata, stream, "audio/mpeg");
request.Fields = "id";
//Set the progress change method
request.ProgressChanged += (obj) => { string t = $"Uploading... {obj.BytesSent / stream.Length}%";
cc.Text = t; };
string URL = "";
//Try to upload. Get result
var result = await request.UploadAsync();
//If the async method returned without completing the request, handleUpload will take care of it
//and return the final result
UploadStatus finalResult = await handleUpload(request, result.Status);
if (finalResult == UploadStatus.Completed)
{
//The file was successfully uploaded. Retrieve the file
var file = request.ResponseBody;
//Set its permissions (anyone can read with URL) and retrieve its URL
URL = DriveConnection.setSharedURL(driveService, file.Id);
object link = URL;
//create hyperlink in the content control
cc.Hyperlinks.Add(cc, ref link, System.Type.Missing, name, URL);
}
else if (finalResult == UploadStatus.Failed)
{
cc.Text = "Upload failed :(";
MessageBox.Show("Response: " + "\r\n", "Error", MessageBoxButtons.OK);
}
else
{
Globals.ThisAddIn.sayWord("Recursion not happening");
}
return(URL);
}
/// <summary>
/// Creates root folder for the app embedInFile if not present
/// </summary>
private void createRootFolder()
{
//First check if the root folder is present. If it is, retrieve its ID
string id = DriveConnection.findIDByName(driveService, ROOTNAME);
if (id == "")
{
rootID = DriveConnection.CreateFolder(driveService, ROOTNAME, "");
//Set permissions to the folder
DriveConnection.changePermissions(driveService, rootID,
DriveConnection.PermissionTypes.ANYONE, DriveConnection.PermissionRoles.READER);
}
else
{
rootID = id;
}
}
