public FilestoreFile Make(Guid fileId)
{
try
{
string tmpPath = FilestoreFile.TmpPath(fileId);
string permPath = FilestoreFile.PermPath(fileId);
if (!File.Exists(tmpPath) && !File.Exists(permPath))
{
DateTime init = DateTime.UtcNow;
FileStream fs = File.Create(permPath);
fs.Dispose();
if (Db.Insert(fileId, init, init, init, DateTime.MaxValue, false, null))
{
return(Db.Open(fileId));
}
else
{
File.Delete(permPath); //as a clean up
}
}
}
catch { }
return(null);
}
public void DeleteExpired()
{
DateTime cur = DateTime.UtcNow;
cur = new DateTime(cur.Ticks, DateTimeKind.Utc);
List <FilestoreFile> items = Db.GetExpired(cur);
Db.DeleteExpired(items); //deletes the db records so nobody will come looking - makes it somewhat thread safe (unless currently locked) - all in one sql statement, which could fail if we have a ton of items (>2000 ish)
foreach (FilestoreFile item in items)
{
try
{
if (item.IsTempFile && File.Exists(FilestoreFile.TmpPath(item.FileId)))
{
File.Delete(FilestoreFile.TmpPath(item.FileId));
}
else if (File.Exists(FilestoreFile.PermPath(item.FileId)))
{
File.Delete(FilestoreFile.PermPath(item.FileId));
}
}
catch { }
}
}
public FilestoreFile MakeTemp(DateTime expiration)
{
try
{
Guid id = Guid.NewGuid();
string tmpPath = FilestoreFile.TmpPath(id);
string permPath = FilestoreFile.PermPath(id);
if (!File.Exists(tmpPath) && !File.Exists(permPath))
{
DateTime init = DateTime.UtcNow;
FileStream fs = File.Create(tmpPath);
fs.Dispose();
if (Db.Insert(id, init, init, init, expiration, true, null))
{
return(Db.Open(id));
}
else
{
File.Delete(tmpPath); //as a clean up
}
}
}
catch { }
return(null);
}
private bool Delete(Guid fileId, bool isTmp)
{
if (Db.Delete(fileId))
{
try
{
if (isTmp && File.Exists(FilestoreFile.TmpPath(fileId)))
{
File.Delete(FilestoreFile.TmpPath(fileId));
}
else if (File.Exists(FilestoreFile.PermPath(fileId)))
{
File.Delete(FilestoreFile.PermPath(fileId));
}
}
catch { }
return(true);
}
return(false);
}
/// <summary>
/// Replaces contents of permFile with contents of tmpFile.
/// </summary>
/// <param name="tmpFile">file to copy from</param>
/// <param name="permFile">file to copy to</param>
/// <returns></returns>
public bool Replace(FilestoreFile tmpFile, FilestoreFile permFile)
{
if (tmpFile != null && permFile != null && !permFile.IsTempFile)
{
try
{
permFile.Release();
tmpFile.Release();
File.Delete(FilestoreFile.PermPath(permFile.FileId));
if (tmpFile.IsTempFile)
{
File.Copy(FilestoreFile.TmpPath(tmpFile.FileId), FilestoreFile.PermPath(permFile.FileId));
}
else
{
File.Copy(FilestoreFile.PermPath(tmpFile.FileId), FilestoreFile.PermPath(permFile.FileId));
}
return(true);
}
catch
{ }
}
return(false);
}