/// <summary>
/// 下载远程图片
/// </summary>
/// <param name="imageUrl">将要下载的图片地址</param>
/// <param name="microblogId">微博Id</param>
private void DownloadRemoteImage(string imageUrl, long microblogId)
{
if (UserContext.CurrentUser == null || microblogId <= 0 || string.IsNullOrEmpty(imageUrl))
{
return;
}
try
{
WebRequest webRequest = WebRequest.Create(SiteUrls.FullUrl(imageUrl));
HttpWebResponse httpWebResponse = (HttpWebResponse)webRequest.GetResponse();
Stream stream = httpWebResponse.GetResponseStream();
MemoryStream ms = new MemoryStream();
stream.CopyTo(ms);
string friendlyFileName = imageUrl.Substring(imageUrl.LastIndexOf("/") + 1);
string contentType = MimeTypeConfiguration.GetMimeType(friendlyFileName);
bool isImage = contentType.StartsWith("image");
if (!isImage || stream == null || !stream.CanRead)
{
return;
}
Attachment attachment = new Attachment(ms, contentType, friendlyFileName);
attachment.FileLength = httpWebResponse.ContentLength;
attachment.AssociateId = microblogId;
attachment.UserId = UserContext.CurrentUser.UserId;
attachment.UserDisplayName = UserContext.CurrentUser.DisplayName;
attachment.TenantTypeId = TenantTypeIds.Instance().Microblog();
var attachmentService = new AttachmentService(TenantTypeIds.Instance().Microblog());
attachmentService.Create(attachment, ms);
ms.Dispose();
ms.Close();
}
catch { }
}
public ICentralizedFile AddUpdateFile(string path, string fileName, Stream contentStream)
{
if (!CentralizedFileStorage.IsValid(this.FileStoreKey, path, fileName))
throw this.CreateFilePathInvalidException(path, fileName);
bool processEvents = EventExecutor != null && fileName != FileSystemFileStorageProvider.PLACE_HOLDER_FILENAME;
ICentralizedFile originalFile = (ICentralizedFile)null;
if (processEvents)
{
originalFile = GetFile(path, fileName);
if (originalFile != null)
EventExecutor.OnBeforeUpdate(originalFile);
else
EventExecutor.OnBeforeCreate(FileStoreKey, path, fileName);
}
this.GetConnection().Put(this._bucketName, this.MakeKey(path, fileName), new SortedList<string, string>(), contentStream, new SortedList<string, string>()
{
{
"Content-Type",
MimeTypeConfiguration.GetMimeType(fileName)
}
});
this.RemoveAmazonS3PathQueryResultsAndAmazonS3FileStorageFileFromCache(path, fileName);
var file = GetFile(path, fileName);
if (processEvents)
{
if (originalFile != null)
EventExecutor.OnAfterUpdate(file);
else
EventExecutor.OnAfterCreate(file);
}
return file;
}
public ActionResult UploadContentAttachment()
{
IUser user = UserContext.CurrentUser;
if (user == null)
{
return(new EmptyResult());
}
ContentAttachmentService attachementService = new ContentAttachmentService();
long userId = user.UserId;
string userDisplayName = user.DisplayName;
long attachmentId = 0;
if (Request.Files.Count > 0 && Request.Files["Filedata"] != null)
{
HttpPostedFileBase postFile = Request.Files["Filedata"];
string fileName = postFile.FileName;
string contentType = MimeTypeConfiguration.GetMimeType(postFile.FileName);
ContentAttachment attachment = new ContentAttachment(postFile, contentType);
attachment.UserId = userId;
attachment.UserDisplayName = userDisplayName;
using (Stream stream = postFile.InputStream)
{
attachementService.Create(attachment, stream);
}
attachmentId = attachment.AttachmentId;
}
return(Json(new { AttachmentId = attachmentId }));
}
public override void Process()
{
byte[] uploadFileBytes = null;
string uploadFileName = null;
if (MUploadConfig.MBase64)
{
uploadFileName = MUploadConfig.MBase64Filename;
uploadFileBytes = Convert.FromBase64String(Request[MUploadConfig.MUploadFieldName]);
}
else
{
var file = Request.Files[MUploadConfig.MUploadFieldName];
uploadFileName = file.FileName;
if (!CheckFileType(uploadFileName))
{
Result.MState = MUploadState.MTypeNotAllow;
WriteResult();
return;
}
if (!CheckFileSize(file.ContentLength))
{
Result.MState = MUploadState.MSizeLimitExceed;
WriteResult();
return;
}
uploadFileBytes = new byte[file.ContentLength];
try
{
file.InputStream.Read(uploadFileBytes, 0, file.ContentLength);
}
catch (Exception)
{
Result.MState = MUploadState.MNetworkError;
WriteResult();
}
}
IUser user = UserContext.CurrentUser;
string tenantTypeId = Request["tenantTypeId"];
bool resize = true;
long associateId = 0;
long.TryParse(Context.Request["associateId"], out associateId);
AttachmentService <Attachment> attachementService = new AttachmentService <Attachment>(tenantTypeId);
long userId = user.UserId, ownerId = user.UserId;
string userDisplayName = user.DisplayName;
Result.MOriginFileName = uploadFileName;
try
{
//保存文件
string contentType = MimeTypeConfiguration.GetMimeType(uploadFileName);
MemoryStream ms = new MemoryStream(uploadFileBytes);
string friendlyFileName = uploadFileName.Substring(uploadFileName.LastIndexOf("\\") + 1);
Attachment attachment = new Attachment(ms, contentType, friendlyFileName);
attachment.UserId = userId;
attachment.AssociateId = associateId;
attachment.TenantTypeId = tenantTypeId;
attachment.OwnerId = ownerId;
attachment.UserDisplayName = userDisplayName;
attachementService.Create(attachment, ms);
ms.Dispose();
Result.MUrl = SiteUrls.Instance().AttachmentDirectUrl(attachment);
Result.MState = MUploadState.MSuccess;
}
catch (Exception e)
{
Result.MState = MUploadState.MFileAccessError;
Result.MErrorMessage = e.Message;
}
finally
{
WriteResult();
}
}