/// <summary>
/// Initializes a new instance of the <see cref="OneDriveStorageFilePlatform"/> class.
/// </summary>
/// <param name="service">Instance of OneDriveService</param>
/// <param name="oneDriveStorageFile">Instance of OneDriveStorageFile</param>
public OneDriveStorageFilePlatform(
OneDriveService service,
OneDriveStorageFile oneDriveStorageFile)
{
_service = service;
_oneDriveStorageFile = oneDriveStorageFile;
}
public static async Task <string> GetThumbnail(OneDriveStorageFile file)
{
var thumb = await file.GetThumbnailSetAsync();
if (thumb == null)
{
return(null);
}
return(thumb.Source ?? thumb.Large ?? thumb.Medium ?? thumb.Small);
}
public static async Task <string> GetDownloadURL(this OneDriveStorageFile oneDriveFile)
{
var requestMessage = OneDriveService.Instance.Provider.Drive.Items[oneDriveFile.OneDriveItem.Id].Content.Request().GetHttpRequestMessage();
await OneDriveService.Instance.Provider.AuthenticationProvider.AuthenticateRequestAsync(requestMessage).AsAsyncAction().AsTask();
string headerStr = "\r\n";
foreach (var header in requestMessage.Headers)
{
headerStr += header.Key + ": " + header.Value.First() + "\r\n";
}
return(requestMessage.RequestUri.AbsoluteUri.Replace("https", "http") + headerStr);
}
/// <summary>
/// 上传图片至OneDrive
/// </summary>
/// <param name="image">图片文件</param>
/// <returns></returns>
public async Task <OneDriveImage> UploadImage(StorageFile image, OneDriveImageGroup group)
{
if (_appFolder == null)
{
throw new UnauthorizedAccessException("You need to complete OneDrive authorization before you can upload the image");
}
var imageFolder = await GetImgSaveFolder();
var per = await image.GetBasicPropertiesAsync();
string fileId = "";
string name = "";
string extension = Path.GetExtension(image.Path);
bool isAutoRename = Convert.ToBoolean(AppTools.GetLocalSetting(AppSettings.AutoRename, "True"));
string fileName = isAutoRename ? Guid.NewGuid() + extension : image.Name.Trim();
OneDriveStorageFile cre = null;
try
{
// 这里要对文件大小进行判断，以4MB为分水岭，需要用不同的办法上传
if (per.Size < 4 * 1024 * 1024)
{
using (var stream = await image.OpenReadAsync())
{
cre = await imageFolder.StorageFolderPlatformService.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting, stream);
fileId = cre.OneDriveItem.Id;
name = cre.OneDriveItem.Name;
}
}
else
{
using (var stream = await image.OpenReadAsync())
{
cre = await imageFolder.StorageFolderPlatformService.UploadFileAsync(fileName, stream, CreationCollisionOption.ReplaceExisting, 320 * 1024);
fileId = cre.OneDriveItem.Id;
name = cre.OneDriveItem.Name;
}
}
string link = LinkConvert(fileId);
var item = new OneDriveImage(name, await AppTools.ConvertFileToImage(image), group, link, fileId);
return(item);
}
catch (Exception)
{
return(null);
}
}
