protected void Page_Load(object sender, EventArgs e)
{
DebugHelper.SetContext("GetFile");
// Load the site name
LoadSiteName();
// Check the site
if (CurrentSiteName == "")
{
throw new Exception("[GetFile.aspx]: Site not running.");
}
// Validate the culture
PreferredCultureOnDemand culture = new PreferredCultureOnDemand();
URLRewriter.ValidateCulture(CurrentSiteName, culture, null);
// Set campaign
if (IsLiveSite)
{
// Store campaign name if present
string campaign = AnalyticsHelper.CurrentCampaign(CurrentSiteName);
if (!String.IsNullOrEmpty(campaign))
{
PageInfo pi = CMSContext.CurrentPageInfo;
// Log campaign
if ((pi != null) && AnalyticsHelper.IsLoggingEnabled(CurrentSiteName, pi.NodeAliasPath) && AnalyticsHelper.SetCampaign(campaign, CurrentSiteName, pi.NodeAliasPath))
{
CMSContext.Campaign = campaign;
}
}
}
int cacheMinutes = CacheMinutes;
// Try to get data from cache
using (CachedSection <CMSOutputFile> cs = new CachedSection <CMSOutputFile>(ref outputFile, cacheMinutes, true, null, "getfile", CurrentSiteName, CacheHelper.BaseCacheKey, Request.QueryString))
{
if (cs.LoadData)
{
// Store current value and temporarly disable caching
bool cached = cs.Cached;
cs.Cached = false;
// Process the file
ProcessAttachment();
// Restore cache settings - data were loaded
cs.Cached = cached;
if (cs.Cached)
{
// Do not cache if too big file which would be stored in memory
if ((outputFile != null) &&
(outputFile.Attachment != null) &&
!CacheHelper.CacheImageAllowed(CurrentSiteName, outputFile.Attachment.AttachmentSize) &&
!AttachmentManager.StoreFilesInFileSystem(CurrentSiteName))
{
cacheMinutes = largeFilesCacheMinutes;
}
if (cacheMinutes > 0)
{
// Prepare the cache dependency
CacheDependency cd = null;
if (outputFile != null)
{
string[] dependencies = new string[] {
"node|" + CurrentSiteName.ToLower() + "|" + outputFile.AliasPath.ToLower(),
""
};
// Do not cache if too big file which would be stored in memory
if (outputFile.Attachment != null)
{
if (!CacheHelper.CacheImageAllowed(CurrentSiteName, outputFile.Attachment.AttachmentSize) && !AttachmentManager.StoreFilesInFileSystem(CurrentSiteName))
{
cacheMinutes = largeFilesCacheMinutes;
}
dependencies[1] = "attachment|" + outputFile.Attachment.AttachmentGUID.ToString().ToLower();
}
cd = CacheHelper.GetCacheDependency(dependencies);
}
if (cd == null)
{
// Set default dependency
if (guid != Guid.Empty)
{
// By attachment GUID
cd = CacheHelper.GetCacheDependency(new string[] { "attachment|" + guid.ToString().ToLower() });
}
else if (nodeGuid != Guid.Empty)
{
// By node GUID
cd = CacheHelper.GetCacheDependency(new string[] { "nodeguid|" + CurrentSiteName.ToLower() + "|" + nodeGuid.ToString().ToLower() });
}
else if (aliasPath != null)
{
// By node alias path
cd = CacheHelper.GetCacheDependency(new string[] { "node|" + CurrentSiteName.ToLower() + "|" + aliasPath.ToLower() });
}
}
cs.CacheDependency = cd;
}
// Cache the data
cs.CacheMinutes = cacheMinutes;
cs.Data = outputFile;
}
}
}
// Do not cache images in the browser if cache is not allowed
if (LatestVersion)
{
useClientCache = false;
}
// Send the data
SendFile(outputFile);
DebugHelper.ReleaseContext();
}