/// <summary> /// Sets the last modified and expires header to the response /// </summary> /// <param name="file">Output file data</param> private void SetTimeStamps(CMSOutputForumAttachment file) { DateTime expires = DateTime.Now; // Send last modified header to allow client caching Response.Cache.SetLastModified(file.LastModified); // Setup the client cache Response.Cache.SetCacheability(HttpCacheability.Public); if (AllowClientCache) { expires = DateTime.Now.AddMinutes(ClientCacheMinutes); } Response.Cache.SetExpires(expires); }
/// <summary> /// Processes the specified file. /// </summary> /// <param name="fileGuid">File guid</param> protected void ProcessFile(Guid fileGuid) { // Get the file ForumAttachmentInfo fileInfo = ForumAttachmentInfoProvider.GetForumAttachmentInfoWithoutBinary(fileGuid, CMSContext.CurrentSiteName); if (fileInfo != null) { #region "Security" // Indicates whether current user is granted to see this attachment bool attachmentAllowed = false; // Get forum ForumInfo fi = ForumInfoProvider.GetForumInfo(fileInfo.AttachmentForumID); if (fi != null) { // Check acess if (ForumViewer.CheckPermission("AccessToForum", SecurityHelper.GetSecurityAccessEnum(fi.ForumAccess, 6), fi.ForumGroupID, fi.ForumID)) { attachmentAllowed = true; } } // If attachment is not allowed for current user, redirect to the access denied page if (!attachmentAllowed) { URLHelper.Redirect(URLRewriter.AccessDeniedPageURL(CurrentSiteName)); } #endregion bool resizeImage = (ImageHelper.IsMimeImage(fileInfo.AttachmentMimeType) && ForumAttachmentInfoProvider.CanResizeImage(fileInfo, Width, Height, MaxSideSize)); // Get the data if ((outputFile == null) || (outputFile.ForumAttachment == null)) { outputFile = new CMSOutputForumAttachment(fileInfo, fileInfo.AttachmentBinary); outputFile.Width = Width; outputFile.Height = Height; outputFile.MaxSideSize = MaxSideSize; outputFile.Resized = resizeImage; } } }
/// <summary> /// Sets content type of the response based on file MIME type /// </summary> /// <param name="file">Output file</param> private void SetResponseContentType(CMSOutputForumAttachment file) { string mimeType = file.MimeType; if (file.ForumAttachment != null) { string extension = file.ForumAttachment.AttachmentFileExtension; switch (extension.ToLowerCSafe()) { case ".flv": // Correct MIME type mimeType = "video/x-flv"; break; } } // Set content type Response.ContentType = mimeType; }
/// <summary> /// Ensures the physical file. /// </summary> /// <param name="file">Output file</param> public bool EnsurePhysicalFile(CMSOutputForumAttachment file) { if (file == null) { return(false); } // Try to link to file system if ((file.ForumAttachment != null) && (file.ForumAttachment.AttachmentID > 0) && ForumAttachmentInfoProvider.StoreFilesInFileSystem(CurrentSiteName)) { string filePath = ForumAttachmentInfoProvider.EnsureAttachmentPhysicalFile(file.ForumAttachment, CurrentSiteName); if (filePath != null) { if (file.Resized) { // If resized, ensure the thumbnail file if (ForumAttachmentInfoProvider.GenerateThumbnails(CurrentSiteName)) { filePath = ForumAttachmentInfoProvider.EnsureThumbnailFile(file.ForumAttachment, this.Width, this.Height, this.MaxSideSize); if (filePath != null) { // Link to the physical file file.PhysicalFile = filePath; return(true); } } } else { // Link to the physical file file.PhysicalFile = filePath; return(false); } } } file.PhysicalFile = ""; return(false); }
/// <summary> /// Ensures the physical file. /// </summary> /// <param name="file">Output file</param> public bool EnsurePhysicalFile(CMSOutputForumAttachment file) { if (file == null) { return false; } // Try to link to file system if ((file.ForumAttachment != null) && (file.ForumAttachment.AttachmentID > 0) && ForumAttachmentInfoProvider.StoreFilesInFileSystem(CurrentSiteName)) { string filePath = ForumAttachmentInfoProvider.EnsureAttachmentPhysicalFile(file.ForumAttachment, CurrentSiteName); if (filePath != null) { if (file.Resized) { // If resized, ensure the thumbnail file if (ForumAttachmentInfoProvider.GenerateThumbnails(CurrentSiteName)) { filePath = ForumAttachmentInfoProvider.EnsureThumbnailFile(file.ForumAttachment, Width, Height, MaxSideSize); if (filePath != null) { // Link to the physical file file.PhysicalFile = filePath; return true; } } } else { // Link to the physical file file.PhysicalFile = filePath; return false; } } } file.PhysicalFile = ""; return false; }
/// <summary> /// Processes the file. /// </summary> protected void ProcessFile() { if (fileGuid == Guid.Empty) { return; } // Get the file ForumAttachmentInfo fileInfo = ForumAttachmentInfoProvider.GetForumAttachmentInfoWithoutBinary(fileGuid, SiteContext.CurrentSiteName); if (fileInfo == null) { return; } // Check forum access var forum = ForumInfoProvider.GetForumInfo(fileInfo.AttachmentForumID); if ((forum == null) || !ForumViewer.CheckPermission("AccessToForum", SecurityHelper.GetSecurityAccessEnum(forum.ForumAccess, 6), forum.ForumGroupID, forum.ForumID, CurrentUser)) { // If attachment is not allowed for current user, redirect to the access denied page URLHelper.Redirect(PageSecurityHelper.AccessDeniedPageURL(CurrentSiteName)); } bool resizeImage = (ImageHelper.IsMimeImage(fileInfo.AttachmentMimeType) && ForumAttachmentInfoProvider.CanResizeImage(fileInfo, Width, Height, MaxSideSize)); // Get the data if ((outputFile == null) || (outputFile.ForumAttachment == null)) { outputFile = new CMSOutputForumAttachment(fileInfo, fileInfo.AttachmentBinary); outputFile.Width = Width; outputFile.Height = Height; outputFile.MaxSideSize = MaxSideSize; outputFile.Resized = resizeImage; } }
/// <summary> /// Sends the given file within response. /// </summary> /// <param name="file">File to send</param> protected void SendFile(CMSOutputForumAttachment file) { // Clear response. CookieHelper.ClearResponseCookies(); Response.Clear(); // Set the revalidation SetRevalidation(); if (file != null) { // Redirect if the file should be redirected if (file.RedirectTo != "") { URLHelper.RedirectPermanent(file.RedirectTo, CurrentSiteName); } // Prepare etag string etag = file.LastModified.ToString(); // Client caching - only on the live site if (useClientCache && AllowCache && ETagsMatch(etag, file.LastModified)) { // Set correct response content type SetResponseContentType(file); SetTimeStamps(file.LastModified); RespondNotModified(etag); return; } // If physical file not present, try to load if (file.PhysicalFile == null) { EnsurePhysicalFile(outputFile); } // Ensure the file data if physical file not present if (!file.DataLoaded && (file.PhysicalFile == "")) { byte[] cachedData = GetCachedOutputData(); if (file.EnsureData(cachedData)) { if ((cachedData == null) && (CacheMinutes > 0)) { SaveOutputDataToCache(file.OutputData, GetOutputDataDependency(file.ForumAttachment)); } } } // Send the file if ((file.OutputData != null) || (file.PhysicalFile != "")) { // Set correct response content type SetResponseContentType(file); string extension = file.ForumAttachment.AttachmentFileExtension; SetDisposition(file.ForumAttachment.AttachmentFileName, extension); // Set if resumable downloads should be supported AcceptRange = !IsExtensionExcludedFromRanges(extension); if (useClientCache && AllowCache) { SetTimeStamps(file.LastModified); Response.Cache.SetETag(etag); } else { SetCacheability(); } // Add the file data if ((file.PhysicalFile != "") && (file.OutputData == null)) { if (!File.Exists(file.PhysicalFile)) { // File doesn't exist NotFound(); } else { // If the output data should be cached, return the output data bool cacheOutputData = false; if (file.ForumAttachment != null) { cacheOutputData = CacheHelper.CacheImageAllowed(CurrentSiteName, file.ForumAttachment.AttachmentFileSize); } // Stream the file from the file system file.OutputData = WriteFile(file.PhysicalFile, cacheOutputData); } } else { // Use output data of the file in memory if present WriteBytes(file.OutputData); } } else { NotFound(); } } else { NotFound(); } CompleteRequest(); }
/// <summary> /// Sends the given file within response. /// </summary> /// <param name="file">File to send</param> protected void SendFile(CMSOutputForumAttachment file) { // Clear response. CookieHelper.ClearResponseCookies(); Response.Clear(); Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches); if (file != null) { // Redirect if the file should be redirected if (file.RedirectTo != "") { URLHelper.Redirect(file.RedirectTo, true, CurrentSiteName); } // Prepare etag string etag = file.LastModified.ToString(); // Client caching - only on the live site if (useClientCache && AllowCache && CacheHelper.CacheImageEnabled(CurrentSiteName) && ETagsMatch(etag, file.LastModified)) { RespondNotModified(etag, true); return; } // If physical file not present, try to load if (file.PhysicalFile == null) { EnsurePhysicalFile(outputFile); } // Ensure the file data if physical file not present if (!file.DataLoaded && (file.PhysicalFile == "")) { byte[] cachedData = GetCachedOutputData(); if (file.EnsureData(cachedData)) { if ((cachedData == null) && (this.CacheMinutes > 0)) { SaveOutputDataToCache(file.OutputData, GetOutputDataDependency(file.ForumAttachment)); } } } // Send the file if ((file.OutputData != null) || (file.PhysicalFile != "")) { // Setup the mime type - Fix the special types string mimetype = file.MimeType; string extension = file.ForumAttachment.AttachmentFileExtension; switch (extension.ToLower()) { case ".flv": mimetype = "video/x-flv"; break; } // Prepare response Response.ContentType = mimetype; SetDisposition(file.ForumAttachment.AttachmentFileName, extension); // Set if resumable downloads should be supported AcceptRange = !IsExtensionExcludedFromRanges(extension); if (useClientCache && AllowCache && (CacheHelper.CacheImageEnabled(CurrentSiteName))) { DateTime expires = DateTime.Now; // Send last modified header to allow client caching Response.Cache.SetLastModified(file.LastModified); Response.Cache.SetCacheability(HttpCacheability.Public); if (DocumentBase.AllowClientCache() && DocumentBase.UseFullClientCache) { expires = DateTime.Now.AddMinutes(CacheHelper.CacheImageMinutes(CurrentSiteName)); } Response.Cache.SetExpires(expires); Response.Cache.SetETag(etag); } // Add the file data if ((file.PhysicalFile != "") && (file.OutputData == null)) { // If the output data should be cached, return the output data bool cacheOutputData = false; if (file.ForumAttachment != null) { cacheOutputData = CacheHelper.CacheImageAllowed(CurrentSiteName, file.ForumAttachment.AttachmentFileSize); } // Stream the file from the file system file.OutputData = WriteFile(file.PhysicalFile, cacheOutputData); } else { // Use output data of the file in memory if present WriteBytes(file.OutputData); } } else { NotFound(); } } else { NotFound(); } CompleteRequest(); //RequestHelper.EndResponse(); }
/// <summary> /// Processes the specified file. /// </summary> /// <param name="fileGuid">File guid</param> protected void ProcessFile(Guid fileGuid) { // Get the file ForumAttachmentInfo fileInfo = ForumAttachmentInfoProvider.GetForumAttachmentInfoWithoutBinary(fileGuid, CMSContext.CurrentSiteName); if (fileInfo != null) { #region "Security" // Indicates whether current user is granted to see this attachment bool attachmentAllowed = false; // Get forum ForumInfo fi = ForumInfoProvider.GetForumInfo(fileInfo.AttachmentForumID); if (fi != null) { // Check acess if (ForumViewer.CheckPermission("AccessToForum", SecurityHelper.GetSecurityAccessEnum(fi.ForumAccess, 6), fi.ForumGroupID, fi.ForumID)) { attachmentAllowed = true; } } // If attachment is not allowed for current user, redirect to the access denied page if (!attachmentAllowed) { URLHelper.Redirect(URLRewriter.AccessDeniedPageURL(CurrentSiteName)); } #endregion bool resizeImage = (ImageHelper.IsMimeImage(fileInfo.AttachmentMimeType) && ForumAttachmentInfoProvider.CanResizeImage(fileInfo, this.Width, this.Height, this.MaxSideSize)); // Get the data if ((outputFile == null) || (outputFile.ForumAttachment == null)) { outputFile = new CMSOutputForumAttachment(fileInfo, fileInfo.AttachmentBinary); outputFile.Width = this.Width; outputFile.Height = this.Height; outputFile.MaxSideSize = this.MaxSideSize; outputFile.Resized = resizeImage; } } }