public async Task <ActionResult> UpdateGoogleFileAsync(string id, CancellationToken cancellationToken)
{
var result = await new AuthorizationCodeMvcApp(this, new AppFlowMetadata()).
AuthorizeAsync(cancellationToken);
if (result.Credential != null)
{
var service = new DriveService(new BaseClientService.Initializer
{
HttpClientInitializer = result.Credential,
ApplicationName = "WorkCard.vn"
});
var list = await service.Files.List().ExecuteAsync();
var _item = list.Items.Where(t => t.Id == id).FirstOrDefault();
try
{
if (!_item.Description.Contains("WorkCard.vn"))
{
_item.Description += "WorkCard.vn";
}
_item.Shared = true;
_item.CanComment = true;
_item.Capabilities.CanDownload = true;
_item.Capabilities.CanShare = true;
FilesResource.UpdateRequest request = service.Files.Update(_item, _item.Id);
request.NewRevision = true;
await request.ExecuteAsync();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
if (!_item.DownloadUrl.IsNullOrEmptyOrWhiteSpace())
{
using (ApplicationDbContext context = new ApplicationDbContext())
{
var file = context.Documents.Where(t => t.GDriveId == id).FirstOrDefault();
file.DownloadUrl = _item.DownloadUrl;
context.Entry(file).State = EntityState.Modified;
await context.SaveChangesAsync();
}
}
if (Request.IsAjaxRequest())
{
return(PartialView("_NotifyMessage", "Downloaded"));
}
return(View("_NotifyMessage", "Downloaded"));
}
else
{
return(new RedirectResult(result.RedirectUri));
}
}
/// <summary>
/// This is the method that can be used to copy a file from one folder into another in folder
/// in Google Drive.
/// </summary>
/// <param name="fromFolder">The folder to copy from</param>
/// <param name="toFolder">The folder to copy into</param>
/// <param name="fileName">The name of the file to be copied</param>
/// <returns>The copied file</returns>
public static async Task <Google.Apis.Drive.v3.Data.File> CopyFileToNewLocation(string fromFolder, string toFolder, string fileName)
{
DriveService service = CreateService();
string fileId = null, fromFolderId = null, toFolderId = null;
Google.Apis.Drive.v3.Data.File filedata;
// Get all the files in the Google Drive
FilesResource.ListRequest fileListRequest = service.Files.List();
fileListRequest.Fields = "nextPageToken, files(*)";
//get file in the root folder.
IList <Google.Apis.Drive.v3.Data.File> rootFolderFiles = fileListRequest.Execute().Files;
//Get the Id of the fromfolder
if (rootFolderFiles != null && rootFolderFiles.Count > 0)
{
foreach (var file in rootFolderFiles)
{
if (file.Name.ToLower() == fromFolder.ToLower())
{
fromFolderId = file.Id;
break;
}
}
}
//Throw an exception if the fromFolderId is still null indicating that the from folder doesn't exist
if (fromFolderId == null)
{
throw new GoogleApiException("Source folder doesn't exist");
}
//Get te Id of the toFolder
if (rootFolderFiles != null && rootFolderFiles.Count > 0)
{
foreach (var file in rootFolderFiles)
{
if (file.Name.ToLower() == toFolder.ToLower())
{
toFolderId = file.Id;
break;
}
}
}
//Throw an exception if the toFolderId is still null indicating that the to folder doesn't exist
if (toFolderId == null)
{
throw new GoogleApiException("Destination folder doesn't exist");
}
//Get the Id and meatadata of the file in the fromFolder
if (rootFolderFiles != null && rootFolderFiles.Count > 0)
{
foreach (var file in rootFolderFiles)
{
foreach (var parent in file.Parents)
{
if (parent == fromFolderId && file.Name == fileName)
{
fileId = file.Id;
filedata = file;
break;
}
}
}
}
//Throw an exception to indicate that the file doesn't exist in the from folder
if (fileId == null)
{
throw new GoogleApiException("File does not exist in the folder");
}
//copy the file to a new location
FilesResource.UpdateRequest updateRequest = service.Files.Update(new Google.Apis.Drive.v3.Data.File(), fileId);
updateRequest.Fields = "*";
updateRequest.AddParents = toFolderId;
//Execute the request
filedata = await updateRequest.ExecuteAsync();
return(filedata);
}