private async Task <(CloudStorageResult result, string folderId)> CreateFolderAsync(string fullFolderPath)
{
CloudStorageResult result = new CloudStorageResult();
string folderId;
try
{
// check if folder already exist
folderId = await TryGetFolderIdAsync(fullFolderPath);
if (!string.IsNullOrEmpty(folderId))
{
result.Status = Status.Success;
return(result, folderId);
}
var createResult = await dropboxClient.Files.CreateFolderV2Async(fullFolderPath);
folderId = createResult.Metadata.Id;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
folderId = null;
}
return(result, folderId);
}
public async Task <CloudStorageResult> InitAsync()
{
CloudStorageResult result = new CloudStorageResult();
try
{
// 取得上次登入資訊
string lastRefreshToken = LoadRefreshTokenDelegate?.Invoke();
// 初始化
result.Status = Status.NeedAuthenticate;
oauthClient = new OneDriveOauthClient(ApiKey, ApiSecret);
if (!string.IsNullOrEmpty(lastRefreshToken))
{
bool needLogin = !await oauthClient.RefreshTokenAsync(lastRefreshToken);
if (needLogin)
{
lastRefreshToken = null;
}
else
{
result.Status = Status.Success;
// 儲存新的access token/refresh token
SaveAccessTokenDelegate?.Invoke(oauthClient.AccessToken);
InitDriveService();
}
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
public async Task <(CloudStorageResult result, string folderId)> CreateFolderAsync(string fullFolderPath)
{
CloudStorageResult result = new CloudStorageResult();
string folderId = null;
if (string.IsNullOrEmpty(fullFolderPath))
{
return(result, null);
}
try
{
// need to create folder recursively
var folders = fullFolderPath.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
// create first folder under root
folderId = "root";
foreach (string folderName in folders)
{
folderId = await TryCreateFolder(folderId, folderName);
}
result.Status = Status.Success;
}
catch (Exception e)
{
result.Message = e.Message;
}
return(result, folderId);
}
public async Task <(CloudStorageResult, CloudStorageAccountInfo)> LoginAsync()
{
CloudStorageResult result = new CloudStorageResult();
CloudStorageAccountInfo accountInfo = new CloudStorageAccountInfo();
try
{
if (await oauthClient.GetTokenAsync())
{
SaveAccessTokenDelegate?.Invoke(oauthClient.AccessToken);
SaveRefreshTokenDelegate?.Invoke(oauthClient.RefreshToken);
InitDriveService();
(result, accountInfo.userName, accountInfo.userEmail) = await GetUserInfoAsync();
if (result.Status == Status.Success)
{
(result, accountInfo.usedSpace, accountInfo.totalSpace) = await GetRootInfoAsync();
}
}
else
{
result.Message = oauthClient.LastError;
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, accountInfo);
}
public async Task <CloudStorageResult> DeleteFileByIdAsync(string fileID)
{
CloudStorageResult result = new CloudStorageResult();
if (string.IsNullOrEmpty(fileID))
{
return(result);
}
try
{
//fileID = fileID.Replace("id:", string.Empty); // 要刪除前綴 "id:" 才是 dropbox 正確格式
List <string> deletedIds = new List <string> {
fileID
};
var deleteResult = await dropboxClient.Files.DeleteV2Async(fileID);
result.Status = Status.Success;
}
catch (ApiException <Dropbox.Api.FileRequests.DeleteFileRequestError> ex)
{
result.Message = ex.ToString();
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
public async Task <CloudStorageResult> DownloadFileByIdAsync(string fileID, string savePath, CancellationToken ct)
{
CloudStorageResult result = new CloudStorageResult();
if (string.IsNullOrEmpty(fileID))
{
result.Status = Status.NotFound;
return(result);
}
try
{
using (Stream downloadStream = await myDriveBuilder.Items[fileID].Content.Request().GetAsync(ct))
{
using (FileStream fileStream = new FileStream(savePath, FileMode.Create))
{
byte[] buffer = new byte[CHUNK_SIZE];
int length;
do
{
// check if user cancelling
if (ct.IsCancellationRequested)
{
throw new TaskCanceledException("Download cancelled.");
}
// get each chunk from remote
length = await downloadStream.ReadAsync(buffer, 0, CHUNK_SIZE, ct);
await fileStream.WriteAsync(buffer, 0, length, ct);
// Update progress bar with the percentage.
Console.WriteLine($"Downloaded {length} bytes.");
OnProgressChanged(length);
} while (length > 0);
fileStream.Close();
}
downloadStream.Close();
}
result.Status = Status.Success;
}
catch (TaskCanceledException ex)
{
result.Status = Status.Cancelled;
result.Message = ex.Message;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
public async Task <(CloudStorageResult result, CloudStorageAccountInfo info)> GetAccountInfoAsync()
{
CloudStorageResult result = new CloudStorageResult();
CloudStorageAccountInfo info = new CloudStorageAccountInfo();
(result, info.userName, info.userEmail) = await GetUserInfoAsync();
if (result.Status == Status.Success)
{
(result, info.usedSpace, info.totalSpace) = await GetRootInfoAsync();
}
return(result, info);
}
private async Task <CloudStorageResult> DownloadFileByPathAsync(string filePath, string savePath, CancellationToken ct)
{
CloudStorageResult result = new CloudStorageResult();
try
{
// prepare file to download
using (FileStream fileStream = new FileStream(savePath, FileMode.Create))
{
var getResult = await dropboxClient.Files.DownloadAsync(filePath);
using (Stream getStream = await getResult.GetContentAsStreamAsync())
{
byte[] buffer = new byte[CHUNK_SIZE];
int length;
do
{
// check if user cancelling
if (ct.IsCancellationRequested)
{
throw new TaskCanceledException("Download cancelled.");
}
// get each chunk from remote
length = await getStream.ReadAsync(buffer, 0, CHUNK_SIZE, ct);
await fileStream.WriteAsync(buffer, 0, length, ct);
// Update progress bar with the percentage.
OnProgressChanged(length);
} while (length > 0);
getStream.Close();
}
// close the file
await fileStream.FlushAsync(ct);
fileStream.Close();
}
result.Status = Status.Success;
}
catch (TaskCanceledException ex)
{
result.Status = Status.Cancelled;
result.Message = ex.Message;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
public async Task <CloudStorageResult> InitAsync()
{
CloudStorageResult result = new CloudStorageResult();
bool IsNeedLogin = true;
try
{
// 取得上次登入資訊
LastAccessToken = LoadAccessTokenDelegate?.Invoke();
LastRefreshToken = LoadRefreshTokenDelegate?.Invoke();
// 初始化
oAuthWrapper = new DropBoxOauthClient(ApiKey, RedirectUrl);
if (!string.IsNullOrEmpty(LastRefreshToken)) // offline 類型的 token
{
IsNeedLogin = !await oAuthWrapper.RefreshTokenAsync(LastRefreshToken);
if (IsNeedLogin)
{
result.Status = Status.NeedAuthenticate;
LastAccessToken = LastRefreshToken = null;
}
else
{
result.Status = Status.Success;
// 儲存新的access token/refresh token
SaveAccessTokenDelegate?.Invoke(oAuthWrapper.AccessToken);
InitDriveService();
}
}
else if (!string.IsNullOrEmpty(LastAccessToken)) // legacy 類型的 token，不需要refresh
{
result.Status = Status.Success;
InitDriveService();
}
else
{
// each token is empty, need login
result.Status = Status.NeedAuthenticate;
result.Message = "Empty access and refresh token.";
}
}
catch (Exception ex)
{
result.Status = Status.UnknownError;
result.Message = ex.Message;
}
return(result);
}
public async Task <(CloudStorageResult result, CloudStorageAccountInfo info)> GetAccountInfoAsync()
{
CloudStorageResult result = new CloudStorageResult();
CloudStorageAccountInfo info = new CloudStorageAccountInfo();
//if (string.IsNullOrEmpty(LastRefreshToken))
// return (result, info);
(result, info.userName, info.userEmail) = await GetUserInfoAsync();
if (result.Status == Status.Success)
{
(result, info.usedSpace, info.totalSpace) = await GetRootInfoAsync();
}
return(result, info);
}
public async Task <CloudStorageResult> DeleteFileByPathAsync(string filePath)
{
CloudStorageResult result = new CloudStorageResult();
try
{
var deleteResult = await dropboxClient.Files.DeleteV2Async(filePath);
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
public async Task <(CloudStorageResult result, string folderId)> CreateFolderAsync(string parentId, string folderName)
{
CloudStorageResult result = new CloudStorageResult();
string folderId = null;
try
{
folderId = await TryCreateFolder(parentId, folderName);
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, folderId);
}
/// <summary>
/// 取得User Name, Email
/// </summary>
private async Task <(CloudStorageResult result, string userName, string userEmail)> GetUserInfoAsync()
{
string userName = null, userEmail = null;
CloudStorageResult result = new CloudStorageResult();
try
{
System.Net.WebRequest request = System.Net.WebRequest.Create(UerInfoEndpoint + oauthClient.AccessToken);
request.Method = "GET";
request.ContentType = "application/json";
// Get the response.
System.Net.WebResponse response = await request.GetResponseAsync();
// Display the status.
//Console.WriteLine(((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
Stream dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = await reader.ReadToEndAsync();
// Display the content.
Console.WriteLine(responseFromServer);
// Clean up the streams and the response.
reader.Close();
reader.Dispose();
dataStream.Close();
dataStream.Dispose();
response.Close();
response.Dispose();
if (!string.IsNullOrEmpty(responseFromServer))
{
Newtonsoft.Json.Linq.JObject jObject = Newtonsoft.Json.Linq.JObject.Parse(responseFromServer);
userEmail = jObject["email"]?.ToString();
userName = jObject["name"]?.ToString();
result.Status = Status.Success;
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, userName, userEmail);
}
private async Task <(CloudStorageResult, CloudStorageFile)> UploadFileToFolderByPathAsync(string filePath, string folderName, CancellationToken ct)
{
CloudStorageResult result = new CloudStorageResult();
CloudStorageFile cloudFile = null;
try
{
FileInfo fileInfo = new FileInfo(filePath);
if (!fileInfo.Exists)
{
result.Status = Status.NotFound;
result.Message = $"File '{filePath}' does not exist.";
return(result, null);
}
// upload to dropbox root folder if folderName is empty
if (string.IsNullOrEmpty(folderName))
{
folderName = "/";
}
long fileSize = fileInfo.Length;
if (fileSize <= CHUNK_SIZE)
{
cloudFile = await UploadSmaillFile(filePath, folderName);
OnProgressChanged(fileSize); // 一次回報全部進度
}
else
{
cloudFile = await UploadBigFile(filePath, folderName, ct);
}
result.Status = Status.Success;
}
catch (TaskCanceledException ex)
{
result.Status = Status.Cancelled;
result.Message = ex.Message;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, cloudFile);
}
/// <summary>
/// 取得User Name, Email
/// </summary>
private async Task <(CloudStorageResult result, string userName, string userEmail)> GetUserInfoAsync()
{
CloudStorageResult result = new CloudStorageResult();
string userName = null, userEmail = null;
try
{
User me = await graphServiceClient.Users["me"].Request().GetAsync();
userName = me.DisplayName;
userEmail = me.Mail ?? me.UserPrincipalName;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, userName, userEmail);
}
/// <summary>
/// 取得空間資訊
/// </summary>
private async Task <(CloudStorageResult result, long usedSpace, long totalSpace)> GetRootInfoAsync()
{
long usedSpace = 0, totalSpace = 0;
CloudStorageResult result = new CloudStorageResult();
try
{
var usage = await dropboxClient.Users.GetSpaceUsageAsync();
totalSpace = (long)usage.Allocation.AsIndividual.Value.Allocated;
usedSpace = (long)usage.Used;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, usedSpace, totalSpace);
}
/// <summary>
/// 取得 User Name, Email
/// </summary>
private async Task <(CloudStorageResult result, string userName, string userEmail)> GetUserInfoAsync()
{
string userName = null, userEmail = null;
CloudStorageResult result = new CloudStorageResult();
try
{
var fullAccount = await dropboxClient.Users.GetCurrentAccountAsync();
userName = fullAccount.Name.DisplayName;
userEmail = fullAccount.Email;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, userName, userEmail);
}
/// <summary>
/// 取得空間資訊，並初始化 Drive 物件
/// </summary>
private async Task <(CloudStorageResult result, long usedSpace, long totalSpace)> GetRootInfoAsync()
{
CloudStorageResult result = new CloudStorageResult();
long usedSpace = 0, totalSpace = 0;
try
{
myDriveBuilder = graphServiceClient.Me.Drive;
Drive myDrive = await myDriveBuilder.Request().GetAsync();
usedSpace = myDrive.Quota.Used ?? 0;
totalSpace = myDrive.Quota.Total ?? 0;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, usedSpace, totalSpace);
}
public async Task <CloudStorageResult> DeleteFileByIdAsync(string fileID)
{
CloudStorageResult result = new CloudStorageResult();
if (string.IsNullOrEmpty(fileID))
{
result.Status = Status.NotFound;
return(result);
}
try
{
await myDriveBuilder.Items[fileID].Request().DeleteAsync();
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result);
}
/// <summary>
/// 取得空間資訊，totalSpace=-1 代表無限空間
/// </summary>
private async Task <(CloudStorageResult result, long usedSpace, long totalSpace)> GetRootInfoAsync()
{
long usedSpace = 0, totalSpace = 0;
CloudStorageResult result = new CloudStorageResult();
try
{
var getRequest = driveService.About.Get();
getRequest.Fields = "*"; // Error: 'fields' parameter is required for this method
About about = await getRequest.ExecuteAsync();
totalSpace = about.StorageQuota.Limit ?? -1;
usedSpace = about.StorageQuota.Usage ?? -1;
result.Status = Status.Success;
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, usedSpace, totalSpace);
}
public CloudStorageResult AuthenticateFromUri(string state, string uri)
{
CloudStorageResult result = new CloudStorageResult();
try
{
bool success = oAuthWrapper.ProcessUri(state, uri);
if (success)
{
result.Status = Status.Success;
LastAccessToken = oAuthWrapper.AccessToken;
LastRefreshToken = oAuthWrapper.RefreshToken;
SaveAccessTokenDelegate?.Invoke(LastAccessToken);
SaveRefreshTokenDelegate?.Invoke(LastRefreshToken);
InitDriveService();
}
result.Status = Status.NeedAuthenticate;
}
catch (Exception e)
{
result.Message = e.Message;
}
return(result);
}
public async Task <(CloudStorageResult, CloudStorageFile)> UploadFileToFolderByIdAsync(string filePath, string folderId, CancellationToken ct)
{
IDriveItemRequestBuilder driveItemsRequest;
if (string.IsNullOrEmpty(folderId))
{
driveItemsRequest = myDriveBuilder.Root;
}
else
{
driveItemsRequest = myDriveBuilder.Items[folderId];
}
CloudStorageResult result = new CloudStorageResult();
CloudStorageFile file = null;
// Use properties to specify the conflict behavior in this case, replace
var uploadProps = new DriveItemUploadableProperties
{
ODataType = null,
AdditionalData = new Dictionary <string, object>
{
{ "@microsoft.graph.conflictBehavior", "replace" }
}
};
try
{
// Create an upload session for a file with the same name of the user selected file
UploadSession session = await driveItemsRequest.ItemWithPath(Path.GetFileName(filePath)).CreateUploadSession(uploadProps).Request().PostAsync(ct);
using (FileStream fileStream = new FileStream(filePath, FileMode.Open))
{
var fileUploadTask = new LargeFileUploadTask <DriveItem>(session, fileStream, CHUNK_SIZE);
// Create a callback that is invoked after each slice is uploaded
IProgress <long> progressCallback = new Progress <long>((progress) =>
{
Console.WriteLine($"Uploaded {progress} bytes.");
OnProgressChanged(progress);
});
// Upload the file
var uploadResult = await fileUploadTask.UploadAsync(progressCallback);
if (uploadResult.UploadSucceeded)
{
// The ItemResponse object in the result represents the created item.
file = new CloudStorageFile()
{
Name = uploadResult.ItemResponse.Name,
Id = uploadResult.ItemResponse.Id,
CreatedTime = uploadResult.ItemResponse.CreatedDateTime?.DateTime ?? DateTime.MinValue,
ModifiedTime = uploadResult.ItemResponse.LastModifiedDateTime?.DateTime ?? DateTime.MinValue,
Size = uploadResult.ItemResponse.Size ?? 0
};
result.Status = Status.Success;
}
else
{
result.Message = "Upload failed.";
}
}
}
catch (Exception ex)
{
result.Message = ex.Message;
}
return(result, file);
}