/// <summary>
/// Processes the specified file and returns the data to the output stream.
/// </summary>
/// <param name="attachmentGuid">Attachment guid</param>
protected void ProcessFile(Guid attachmentGuid)
{
AttachmentInfo atInfo = null;
bool requiresData = true;
// Check if it is necessary to load the file data
if (useClientCache && IsLiveSite && AllowClientCache)
{
// If possibly cached by client, do not load data (may not be sent)
string ifModifiedString = Request.Headers["If-Modified-Since"];
if (ifModifiedString != null)
{
requiresData = false;
}
}
// If output data available from cache, do not require loading the data
byte[] cachedData = GetCachedOutputData();
if (cachedData != null)
{
requiresData = false;
}
// Get AttachmentInfo object
if (!IsLiveSite)
{
// Not livesite mode - get latest version
if (node != null)
{
atInfo = DocumentHelper.GetAttachment(node, attachmentGuid, TreeProvider, true);
}
else
{
atInfo = DocumentHelper.GetAttachment(attachmentGuid, TreeProvider, CurrentSiteName);
}
}
else
{
if (!requiresData || AttachmentManager.StoreFilesInFileSystem(CurrentSiteName))
{
// Do not require data from DB - Not necessary or available from file system
atInfo = AttachmentManager.GetAttachmentInfoWithoutBinary(attachmentGuid, CurrentSiteName);
}
else
{
// Require data from DB - Stored in DB
atInfo = AttachmentManager.GetAttachmentInfo(attachmentGuid, CurrentSiteName);
}
// If attachment not found,
if (allowLatestVersion && ((atInfo == null) || (latestForHistoryId > 0) || (atInfo.AttachmentDocumentID == latestForDocumentId)))
{
// Get latest version
if (node != null)
{
atInfo = DocumentHelper.GetAttachment(node, attachmentGuid, TreeProvider, true);
}
else
{
atInfo = DocumentHelper.GetAttachment(attachmentGuid, TreeProvider, CurrentSiteName);
}
// If not attachment for the required document, do not return
if ((atInfo.AttachmentDocumentID != latestForDocumentId) && (latestForHistoryId == 0))
{
atInfo = null;
}
else
{
mIsLatestVersion = true;
}
}
}
if (atInfo != null)
{
// Temporary attachment is always latest version
if (atInfo.AttachmentFormGUID != Guid.Empty)
{
mIsLatestVersion = true;
}
bool checkPublishedFiles = AttachmentManager.CheckPublishedFiles(CurrentSiteName);
bool checkFilesPermissions = AttachmentManager.CheckFilesPermissions(CurrentSiteName);
// Get the document node
if ((node == null) && (checkPublishedFiles || checkFilesPermissions))
{
// Try to get data from cache
using (CachedSection <TreeNode> cs = new CachedSection <TreeNode>(ref node, CacheMinutes, !allowLatestVersion, null, "getfilenodebydocumentid", atInfo.AttachmentDocumentID))
{
if (cs.LoadData)
{
// Get the document
node = TreeProvider.SelectSingleDocument(atInfo.AttachmentDocumentID, false);
// Cache the document
CacheNode(cs, node);
}
}
}
bool secured = false;
if ((node != null) && checkFilesPermissions)
{
secured = (node.IsSecuredNode == 1);
// Check secured pages
if (secured)
{
URLRewriter.CheckSecuredAreas(CurrentSiteName, false, ViewMode);
}
if (node.RequiresSSL == 1)
{
URLRewriter.RequestSecurePage(false, node.RequiresSSL, ViewMode, CurrentSiteName);
}
// Check permissions
bool checkPermissions = false;
switch (URLRewriter.CheckPagePermissions(CurrentSiteName))
{
case PageLocationEnum.All:
checkPermissions = true;
break;
case PageLocationEnum.SecuredAreas:
checkPermissions = secured;
break;
}
// Check the read permission for the page
if (checkPermissions)
{
if (CurrentUser.IsAuthorizedPerDocument(node, NodePermissionsEnum.Read) == AuthorizationResultEnum.Denied)
{
URLHelper.Redirect(URLRewriter.AccessDeniedPageURL(CurrentSiteName));
}
}
}
bool resizeImage = (ImageHelper.IsImage(atInfo.AttachmentExtension) && AttachmentManager.CanResizeImage(atInfo, Width, Height, MaxSideSize));
// If the file should be redirected, redirect the file
if (!mIsLatestVersion && IsLiveSite && SettingsKeyProvider.GetBoolValue(CurrentSiteName + ".CMSRedirectFilesToDisk"))
{
if (AttachmentManager.StoreFilesInFileSystem(CurrentSiteName))
{
string path = null;
if (!resizeImage)
{
path = AttachmentManager.GetFilePhysicalURL(CurrentSiteName, atInfo.AttachmentGUID.ToString(), atInfo.AttachmentExtension);
}
else
{
int[] newDim = ImageHelper.EnsureImageDimensions(Width, Height, MaxSideSize, atInfo.AttachmentImageWidth, atInfo.AttachmentImageHeight);
path = AttachmentManager.GetFilePhysicalURL(CurrentSiteName, atInfo.AttachmentGUID.ToString(), atInfo.AttachmentExtension, newDim[0], newDim[1]);
}
// If path is valid, redirect
if (path != null)
{
// Check if file exists
string filePath = Server.MapPath(path);
if (File.Exists(filePath))
{
outputFile = NewOutputFile();
outputFile.IsSecured = secured;
outputFile.RedirectTo = path;
outputFile.Attachment = atInfo;
}
}
}
}
// Get the data
if ((outputFile == null) || (outputFile.Attachment == null))
{
outputFile = NewOutputFile(atInfo, null);
outputFile.Width = Width;
outputFile.Height = Height;
outputFile.MaxSideSize = MaxSideSize;
outputFile.SiteName = CurrentSiteName;
outputFile.Resized = resizeImage;
// Load the data if required
if (requiresData)
{
// Try to get the physical file, if not latest version
if (!mIsLatestVersion)
{
EnsurePhysicalFile(outputFile);
}
bool loadData = string.IsNullOrEmpty(outputFile.PhysicalFile);
// Load data if necessary
if (loadData)
{
if (atInfo.AttachmentBinary != null)
{
// Load from the attachment
outputFile.LoadData(atInfo.AttachmentBinary, AttachmentManager);
}
else
{
// Load from the disk
byte[] data = AttachmentManager.GetFile(atInfo, CurrentSiteName);
outputFile.LoadData(data, AttachmentManager);
}
// Save data to the cache, if not latest version
if (!mIsLatestVersion && (CacheMinutes > 0))
{
SaveOutputDataToCache(outputFile.OutputData, GetOutputDataDependency(outputFile.Attachment));
}
}
}
else if (cachedData != null)
{
// Load the cached data if available
outputFile.OutputData = cachedData;
}
}
if (outputFile != null)
{
outputFile.IsSecured = secured;
// Add node data
if (node != null)
{
outputFile.AliasPath = node.NodeAliasPath;
outputFile.CultureCode = node.DocumentCulture;
outputFile.FileNode = node;
// Set the file validity
if (IsLiveSite && !mIsLatestVersion && checkPublishedFiles)
{
outputFile.ValidFrom = ValidationHelper.GetDateTime(node.GetValue("DocumentPublishFrom"), DateTime.MinValue);
outputFile.ValidTo = ValidationHelper.GetDateTime(node.GetValue("DocumentPublishTo"), DateTime.MaxValue);
// Set the published flag
outputFile.IsPublished = node.IsPublished;
}
}
}
}
}
/// <summary>
/// Processes the specified version of the file and returns the data to the output stream.
/// </summary>
/// <param name="attachmentGuid">Attachment GUID</param>
/// <param name="versionHistoryId">Document version history ID</param>
protected void ProcessFile(Guid attachmentGuid, int versionHistoryId)
{
AttachmentInfo atInfo = GetFile(attachmentGuid, versionHistoryId);
if (atInfo != null)
{
// If attachment is image, try resize
byte[] mFile = atInfo.AttachmentBinary;
if (mFile != null)
{
string mimetype = null;
if (ImageHelper.IsImage(atInfo.AttachmentExtension))
{
if (AttachmentManager.CanResizeImage(atInfo, Width, Height, MaxSideSize))
{
// Do not search thumbnail on the disk
mFile = AttachmentManager.GetImageThumbnail(atInfo, CurrentSiteName, Width, Height, MaxSideSize, false);
mimetype = "image/jpeg";
}
}
if (mFile != null)
{
outputFile = NewOutputFile(atInfo, mFile);
}
else
{
outputFile = NewOutputFile();
}
outputFile.Height = Height;
outputFile.Width = Width;
outputFile.MaxSideSize = MaxSideSize;
outputFile.MimeType = mimetype;
}
// Get the file document
if (node == null)
{
node = TreeProvider.SelectSingleDocument(atInfo.AttachmentDocumentID);
}
if (node != null)
{
// Check secured area
SiteInfo si = SiteInfoProvider.GetSiteInfo(node.NodeSiteID);
if (si != null)
{
if (pi == null)
{
pi = PageInfoProvider.GetPageInfo(si.SiteName, node.NodeAliasPath, node.DocumentCulture, node.DocumentUrlPath, false);
}
if (pi != null)
{
URLRewriter.RequestSecurePage(pi, false, ViewMode, CurrentSiteName);
URLRewriter.CheckSecuredAreas(CurrentSiteName, pi, false, ViewMode);
}
}
// Check the permissions for the document
if ((CurrentUser.IsAuthorizedPerDocument(node, NodePermissionsEnum.Read) == AuthorizationResultEnum.Allowed) || (node.NodeOwner == CurrentUser.UserID))
{
if (outputFile == null)
{
outputFile = NewOutputFile();
}
outputFile.AliasPath = node.NodeAliasPath;
outputFile.CultureCode = node.DocumentCulture;
if (IsLiveSite && AttachmentManager.CheckPublishedFiles(CurrentSiteName))
{
outputFile.IsPublished = node.IsPublished;
}
outputFile.FileNode = node;
}
else
{
outputFile = null;
}
}
}
}