| public static TryDeleteFile ( string filename ) : void | ||
| filename | string | |
| 리턴 | void | |
public static string GZCompressManaged(string filename)
{
string outfile = null;
try {
outfile = Path.GetTempFileName();
using (FileStream infs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read)) {
using (FileStream outfs = new FileStream(outfile, FileMode.Open, FileAccess.Write, FileShare.Read)) {
using (GZipStream gz = new GZipStream(outfs, CompressionMode.Compress)) {
byte [] buffer = new byte [1024];
int bytes_read;
while ((bytes_read = infs.Read(buffer, 0, buffer.Length)) > 0)
{
gz.Write(buffer, 0, bytes_read);
}
}
}
}
return(outfile);
} catch (Exception ex) {
Logger.Log("Failed to compress file: {0} {1}", filename, ex);
FileUtilities.TryDeleteFile(outfile);
return(null);
}
}
public DBFile Upload(string md5, string path_to_contents, string filename, string extension, bool hidden, string compressed_mime)
{
IDbTransaction transaction = null;
LargeObjectManager manager;
LargeObject obj;
int? oid;
DBFile result;
long filesize;
string gzFilename = null;
try {
filesize = new FileInfo(path_to_contents).Length;
if (filesize > 1024 * 1024 * 500)
{
throw new Exception("Max file size is 500 MB");
}
using (IDbCommand cmd = CreateCommand()) {
cmd.CommandText = "SELECT * FROM File WHERE md5 = '" + md5 + "'";
using (IDataReader reader = cmd.ExecuteReader()) {
if (reader.Read())
{
return(new DBFile(reader));
}
}
}
//Console.WriteLine ("Uploading {0} {1} with compressed mime: {2}", Filename, md5, compressed_mime);
// The file is not in the database
// Note: there is a race condition here,
// the same file might get added to the db before we do it here.
// not quite sure how to deal with that except retrying the above if the insert below fails.
if (compressed_mime == MimeTypes.GZ)
{
gzFilename = path_to_contents;
}
else
{
gzFilename = FileUtilities.GZCompress(path_to_contents);
compressed_mime = MimeTypes.GZ;
}
transaction = BeginTransaction();
if (Configuration.StoreFilesInDB)
{
manager = new LargeObjectManager(this.dbcon);
oid = manager.Create(LargeObjectManager.READWRITE);
obj = manager.Open(oid.Value, LargeObjectManager.READWRITE);
using (FileStream st = new FileStream(gzFilename, FileMode.Open, FileAccess.Read, FileShare.Read)) {
byte [] buffer = new byte [1024];
int read = -1;
while (read != 0)
{
read = st.Read(buffer, 0, buffer.Length);
obj.Write(buffer, 0, read);
}
}
obj.Close();
}
else
{
oid = null;
string fn = FileUtilities.CreateFilename(md5, true, true);
File.Copy(gzFilename, fn, true);
log.DebugFormat("Saved file to: {0}", fn);
}
result = new DBFile();
result.file_id = oid;
result.filename = Path.GetFileName(filename);
result.md5 = md5;
result.size = (int)filesize;
result.hidden = hidden;
switch (extension.ToLower())
{
case ".log":
case ".stdout":
case ".stderr":
result.mime = MimeTypes.LOG;
break;
case ".txt":
result.mime = MimeTypes.TXT;
break;
case ".htm":
case ".html":
result.mime = MimeTypes.HTML;
break;
case ".png":
result.mime = MimeTypes.PNG;
break;
case ".jpg":
result.mime = MimeTypes.JPG;
break;
case ".bmp":
result.mime = MimeTypes.BMP;
break;
case ".tar":
result.mime = MimeTypes.TAR;
break;
case ".bz":
result.mime = MimeTypes.BZ;
break;
case ".bz2":
result.mime = MimeTypes.BZ2;
break;
case ".zip":
result.mime = MimeTypes.ZIP;;
break;
case ".gz":
result.mime = MimeTypes.GZ;
break;
case ".xpi":
result.mime = MimeTypes.XPI;
break;
case ".crx":
result.mime = MimeTypes.CRX;
break;
default:
result.mime = MimeTypes.OCTET_STREAM;
break;
}
result.compressed_mime = compressed_mime;
result.Save(this);
transaction.Commit();
transaction = null;
return(result);
} finally {
FileUtilities.TryDeleteFile(gzFilename);
if (transaction != null)
{
transaction.Rollback();
}
}
}