protected void Page_Load(object sender, EventArgs e)
{
fileGuid = QueryHelper.GetGuid("fileguid", Guid.Empty);
DebugHelper.SetContext("GetForumAttachment");
int cacheMinutes = this.CacheMinutes;
// Try to get data from cache
using (CachedSection <CMSOutputForumAttachment> cs = new CachedSection <CMSOutputForumAttachment>(ref outputFile, cacheMinutes, true, null, "getforumattachment", CurrentSiteName, CacheHelper.GetBaseCacheKey(true, false), Request.QueryString))
{
if (cs.LoadData)
{
// Disable caching before check permissions
cs.CacheMinutes = 0;
// Process the file
ProcessFile();
// Keep original cache minutes if permissions are ok
cs.CacheMinutes = cacheMinutes;
// Ensure the cache settings
if (cs.Cached)
{
// Prepare the cache dependency
CacheDependency cd = null;
if (outputFile != null)
{
if (outputFile.ForumAttachment != null)
{
cd = CacheHelper.GetCacheDependency(outputFile.ForumAttachment.GetDependencyCacheKeys());
// Do not cache if too big file which would be stored in memory
if (!CacheHelper.CacheImageAllowed(CurrentSiteName, outputFile.ForumAttachment.AttachmentFileSize) && !ForumAttachmentInfoProvider.StoreFilesInFileSystem(CurrentSiteName))
{
cacheMinutes = largeFilesCacheMinutes;
}
}
}
if ((cd == null) && (CurrentSite != null) && (outputFile != null))
{
// Get the current forum id
int forumId = 0;
if (outputFile.ForumAttachment != null)
{
forumId = outputFile.ForumAttachment.AttachmentForumID;
}
// Set default dependency based on GUID
cd = CacheHelper.GetCacheDependency(new string[] { "forumattachment|" + fileGuid.ToString().ToLower() + "|" + CurrentSite.SiteID, "forumattachment|" + forumId });
}
// Cache the data
cs.CacheMinutes = cacheMinutes;
cs.CacheDependency = cd;
cs.Data = outputFile;
}
}
}
// Send the data
SendFile(outputFile);
DebugHelper.ReleaseContext();
}
/// <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);
}