public void NpgsqlErrorRepro1()
{
throw new NotImplementedException();
#if WHAT_TO_DO_WITH_THIS
using (var connection = new NpgsqlConnection(ConnectionString))
{
connection.Open();
using (var transaction = connection.BeginTransaction())
{
var largeObjectMgr = new LargeObjectManager(connection);
try
{
var largeObject = largeObjectMgr.Open(-1, LargeObjectManager.READWRITE);
transaction.Commit();
}
catch
{
// ignore the LO failure
}
} // *1* sometimes it throws "System.NotSupportedException: This stream does not support seek operations"
using (var command = connection.CreateCommand())
{
command.CommandText = "SELECT * FROM pg_database";
using (var reader = command.ExecuteReader())
{
Assert.IsTrue(reader.Read()); // *2* this fails if the initial connection is used
}
}
} // *3* sometimes it throws "System.NotSupportedException: This stream does not support seek operations"
#endif
}
/// <summary>
/// Creates a new media object.
/// </summary>
/// <param name="media">The memory stream containing the media.</param>
/// <param name="type">The media type.</param>
/// <param name="rpu">A delegate of type <see cref="StatusMessageReportProgress"/> used to send messages back to the calling object.</param>
/// <param name="caller">The calling object.</param>
/// <returns>The id for the new media object.</returns>
/// <remarks>Documented by Dev03, 2008-08-05</remarks>
/// <remarks>Documented by Dev03, 2009-01-13</remarks>
public int CreateMedia(Stream media, EMedia type, StatusMessageReportProgress rpu, object caller)
{
using (NpgsqlConnection conn = PostgreSQLConn.CreateConnection(Parent.CurrentUser))
{
NpgsqlTransaction tran = conn.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(conn);
int noid = lbm.Create(LargeObjectManager.READWRITE);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
byte[] buffer = new byte[media.Length];
media.Read(buffer, 0, (int)media.Length);
BufferToLargeObject(buffer, largeObject, rpu, caller);
largeObject.Close();
int newId = 0;
using (NpgsqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "INSERT INTO \"MediaContent\" (data, media_type) VALUES (:data, :type) RETURNING id;";
cmd.Parameters.Add("data", noid);
cmd.Parameters.Add("type", type.ToString());
newId = Convert.ToInt32(PostgreSQLConn.ExecuteScalar(cmd, Parent.CurrentUser));
}
tran.Commit();
return(newId);
}
}
public void NpgsqlErrorRepro1()
{
using (NpgsqlConnection connection = new NpgsqlConnection(TheConnectionString))
{
connection.Open();
using (NpgsqlTransaction transaction = connection.BeginTransaction())
{
LargeObjectManager largeObjectMgr = new LargeObjectManager(connection);
try
{
LargeObject largeObject = largeObjectMgr.Open(-1, LargeObjectManager.READWRITE);
transaction.Commit();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
// ignore the LO failure
}
} // *1* sometimes it throws "System.NotSupportedException: This stream does not support seek operations"
using (NpgsqlCommand command = connection.CreateCommand())
{
command.CommandText = "SELECT * FROM pg_database";
using (NpgsqlDataReader reader = command.ExecuteReader())
{
Assert.IsTrue(reader.Read()); // *2* this fails if the initial connection is used
}
}
} // *3* sometimes it throws "System.NotSupportedException: This stream does not support seek operations"
}
/// <summary>
/// Updates the media.
/// </summary>
/// <param name="id">The id.</param>
/// <param name="media">The media.</param>
/// <remarks>Documented by Dev02, 2008-08-06</remarks>
/// <remarks>Documented by Dev03, 2009-01-13</remarks>
public void UpdateMedia(int id, Stream media)
{
using (NpgsqlConnection con = PostgreSQLConn.CreateConnection(Parent.CurrentUser))
{
NpgsqlTransaction tran = con.BeginTransaction();
int noid;
using (NpgsqlCommand cmd = con.CreateCommand())
{
cmd.CommandText = "SELECT data FROM \"MediaContent\" WHERE id=:id";
cmd.Parameters.Add("id", id);
noid = Convert.ToInt32(PostgreSQLConn.ExecuteScalar(cmd, Parent.CurrentUser));
}
LargeObjectManager lbm = new LargeObjectManager(con);
lbm.Delete(noid);
noid = lbm.Create(LargeObjectManager.READWRITE);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
byte[] buffer = new byte[media.Length];
media.Read(buffer, 0, (int)media.Length);
BufferToLargeObject(buffer, largeObject);
largeObject.Close();
using (NpgsqlCommand cmd = con.CreateCommand())
{
cmd.CommandText = "UPDATE \"MediaContent\" SET data=:data WHERE id=:id";
cmd.Parameters.Add("id", id);
cmd.Parameters.Add("data", noid);
PostgreSQLConn.ExecuteNonQuery(cmd, Parent.CurrentUser);
}
tran.Commit();
}
}
/// <summary>
/// Writes the media object to a stream.
/// </summary>
/// <param name="mediaId">The media id.</param>
/// <param name="output">The output.</param>
private void WriteMedia(int mediaId, Stream output)
{
using (NpgsqlConnection conn = FileHandlerHelpers.GetPgConnection())
{
int noid = 0;
using (NpgsqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "SELECT data FROM \"MediaContent\" WHERE id=:id;";
cmd.Parameters.Add("id", mediaId);
noid = Convert.ToInt32(cmd.ExecuteScalar());
}
NpgsqlTransaction tran = conn.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(conn);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
largeObject.Seek(0);
int size = largeObject.Size();
byte[] buffer = new byte[size];
int read = 0;
int offset = 0;
while (offset < size)
{
read = largeObject.Read(buffer, offset, Math.Min(102400, size - offset));
output.Write(buffer, offset, read);
offset += 102400;
}
largeObject.Close();
tran.Commit();
}
}
/// <summary>
/// Gets the extension stream.
/// </summary>
/// <param name="guid">The GUID.</param>
/// <returns></returns>
public Stream GetExtensionStream(Guid guid)
{
MemoryStream stream = null;
using (NpgsqlConnection con = PostgreSQLConn.CreateConnection(Parent.CurrentUser))
{
int noid = 0;
using (NpgsqlCommand cmd = con.CreateCommand())
{
cmd.CommandText = "SELECT data FROM \"Extensions\" WHERE guid=:guid;";
cmd.Parameters.Add("guid", guid.ToString());
object obj = PostgreSQLConn.ExecuteScalar(cmd, Parent.CurrentUser);
if (obj == null || obj == DBNull.Value || !(obj as long?).HasValue)
{
return(stream);
}
noid = Convert.ToInt32((obj as long?).Value);
}
NpgsqlTransaction tran = con.BeginTransaction();
try
{
LargeObjectManager lbm = new LargeObjectManager(con);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
byte[] buffer = LargeObjectToBuffer(largeObject);
stream = new MemoryStream(buffer);
largeObject.Close();
}
catch { }
finally { tran.Commit(); }
}
return(stream);
}
public int GetLargeObjectSize(int oid)
{
using (IDbTransaction transaction = BeginTransaction()) {
int result;
LargeObject obj = Manager.Open(oid);
result = obj.Size();
obj.Close();
return(result);
}
}
public void NpgsqlErrorRepro2()
{
#if WHAT_TO_DO_WITH_THIS
var connection = new NpgsqlConnection(ConnectionString);
connection.Open();
var transaction = connection.BeginTransaction();
var largeObjectMgr = new LargeObjectManager(connection);
try
{
var largeObject = largeObjectMgr.Open(-1, LargeObjectManager.READWRITE);
transaction.Commit();
}
catch
{
// ignore the LO failure
try
{
transaction.Dispose();
}
catch
{
// ignore dispose failure
}
try
{
connection.Dispose();
}
catch
{
// ignore dispose failure
}
}
using (connection = new NpgsqlConnection(ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = "SELECT * FROM pg_database";
using (var reader = command.ExecuteReader())
{
Assert.IsTrue(reader.Read());
// *1* this fails if the connection for the pool happens to be the bad one from above
Assert.IsTrue(!String.IsNullOrEmpty((string)reader["datname"]));
}
}
}
#endif
}
/// <summary>
/// modify a record
/// </summary>
public void modifyz_voluntarios(z_voluntarios myz_voluntarios, string foto)
{
CnxBase myBase = new CnxBase();
string reqSQL;
reqSQL = "UPDATE z_voluntarios SET id_voluntario=" + myz_voluntarios.id_voluntario + ",id_compania=" + myz_voluntarios.id_compania + ",nombres='" + myz_voluntarios.nombres + "',apellidos='" + myz_voluntarios.apellidos + "',rut='" + myz_voluntarios.rut + "',direccion='" + myz_voluntarios.direccion + "',fecha_nacimiento='" + myz_voluntarios.fecha_nacimiento + "',ingreso='" + myz_voluntarios.ingreso + "',num_llamado=" + myz_voluntarios.num_llamado + ",comuna='" + myz_voluntarios.comuna + "',telefono='" + myz_voluntarios.telefono + "',celular='" + myz_voluntarios.celular + "' WHERE (id_voluntario=" + myz_voluntarios.id_voluntario + ")";
try
{
NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString);
if (foto != null)
{
NpgsqlTransaction t = myConn.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(myConn);
int noid = lbm.Create(LargeObjectManager.READWRITE);
LargeObject lo = lbm.Open(noid, LargeObjectManager.READWRITE);
// eliminar antiguo
NpgsqlCommand comm = new NpgsqlCommand("select foto from z_voluntarios where id_voluntario=" + myz_voluntarios.id_voluntario, myConn);
comm.ExecuteScalar();
//lbm.Unlink(oid);
FileStream fs = File.OpenRead(foto);
byte[] buf = new byte[fs.Length];
fs.Read(buf, 0, (int)fs.Length);
lo.Write(buf);
lo.Close();
t.Commit();
reqSQL = "UPDATE z_voluntarios SET id_voluntario=" + myz_voluntarios.id_voluntario + ",id_compania=" + myz_voluntarios.id_compania + ",nombres='" + myz_voluntarios.nombres + "',apellidos='" + myz_voluntarios.apellidos + "',rut='" + myz_voluntarios.rut + "',direccion='" + myz_voluntarios.direccion + "',fecha_nacimiento='" + myz_voluntarios.fecha_nacimiento + "',ingreso='" + myz_voluntarios.ingreso + "',num_llamado=" + myz_voluntarios.num_llamado + ",comuna='" + myz_voluntarios.comuna + "',telefono='" + myz_voluntarios.telefono + "',celular='" + myz_voluntarios.celular + "', foto=" + noid + " WHERE (id_voluntario=" + myz_voluntarios.id_voluntario + ")";
}
NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn);
myCommand.ExecuteNonQuery();
myBase.CloseConnection(myConn);
}
catch (Exception myErr)
{
throw (new Exception(myErr.ToString() + reqSQL));
}
}
/// <summary>
/// add a record
/// </summary>
/// <param name="myID"></param>
public void addz_voluntarios(z_voluntarios myz_voluntarios, string foto)
{
CnxBase myBase = new CnxBase();
string reqSQL;
reqSQL = "INSERT INTO z_voluntarios (id_compania,nombres,apellidos,rut,direccion,fecha_nacimiento,ingreso,num_llamado,comuna,telefono,celular) VALUES (" + myz_voluntarios.id_compania + ",'" + myz_voluntarios.nombres + "','" + myz_voluntarios.apellidos + "','" + myz_voluntarios.rut + "','" + myz_voluntarios.direccion + "','" + myz_voluntarios.fecha_nacimiento + "','" + myz_voluntarios.ingreso + "'," + myz_voluntarios.num_llamado + ",'" + myz_voluntarios.comuna + "','" + myz_voluntarios.telefono + "','" + myz_voluntarios.celular + "')";
try
{
NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString);
if (foto != null)
{
NpgsqlTransaction t = myConn.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(myConn);
int noid = lbm.Create(LargeObjectManager.READWRITE);
LargeObject lo = lbm.Open(noid, LargeObjectManager.READWRITE);
FileStream fs = File.OpenRead(foto);
byte[] buf = new byte[fs.Length];
fs.Read(buf, 0, (int)fs.Length);
lo.Write(buf);
lo.Close();
t.Commit();
reqSQL = "INSERT INTO z_voluntarios (id_compania,nombres,apellidos,rut,direccion,fecha_nacimiento,ingreso,num_llamado,comuna,telefono,celular, foto) VALUES (" + myz_voluntarios.id_compania + ",'" + myz_voluntarios.nombres + "','" + myz_voluntarios.apellidos + "','" + myz_voluntarios.rut + "','" + myz_voluntarios.direccion + "','" + myz_voluntarios.fecha_nacimiento + "','" + myz_voluntarios.ingreso + "'," + myz_voluntarios.num_llamado + ",'" + myz_voluntarios.comuna + "','" + myz_voluntarios.telefono + "','" + myz_voluntarios.celular + "', " + noid + ")";
}
NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn);
myCommand.ExecuteNonQuery();
myBase.CloseConnection(myConn);
}
catch (Exception myErr)
{
throw (new Exception(myErr.ToString() + reqSQL));
}
}
/// <summary>
/// Gets the media.
/// </summary>
/// <param name="id">The id.</param>
/// <param name="cacheConnector">The cache connector.</param>
/// <returns>A memory stream for the media object.</returns>
/// <remarks>Documented by Dev03, 2008-08-05</remarks>
/// <remarks>Documented by Dev03, 2009-01-13</remarks>
public Stream GetMediaStream(int id, IDbMediaConnector cacheConnector)
{
CachingStream stream = null;
using (NpgsqlConnection conn = PostgreSQLConn.CreateConnection(Parent.CurrentUser))
{
int noid = 0;
using (NpgsqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "SELECT data FROM \"MediaContent\" WHERE id=:id;";
cmd.Parameters.Add("id", id);
noid = Convert.ToInt32(PostgreSQLConn.ExecuteScalar(cmd, Parent.CurrentUser));
}
NpgsqlTransaction tran = conn.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(conn);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
byte[] buffer = LargeObjectToBuffer(largeObject);
stream = new CachingStream(buffer, id, cacheConnector);
largeObject.Close();
tran.Commit();
}
return(stream);
}
/// <summary>
/// Sets the extension stream.
/// </summary>
/// <param name="guid">The GUID.</param>
/// <param name="extensionStream">The extension stream.</param>
public void SetExtensionStream(Guid guid, Stream extensionStream)
{
using (NpgsqlConnection con = PostgreSQLConn.CreateConnection(Parent.CurrentUser))
{
NpgsqlTransaction tran = con.BeginTransaction();
LargeObjectManager lbm = new LargeObjectManager(con);
int noid = lbm.Create(LargeObjectManager.READWRITE);
LargeObject largeObject = lbm.Open(noid, LargeObjectManager.READWRITE);
byte[] buffer = new byte[extensionStream.Length];
extensionStream.Read(buffer, 0, (int)extensionStream.Length);
BufferToLargeObject(buffer, largeObject);
largeObject.Close();
using (NpgsqlCommand cmd = con.CreateCommand())
{
cmd.CommandText = "UPDATE \"Extensions\" SET data=:data WHERE guid=:guid";
cmd.Parameters.Add("data", noid);
cmd.Parameters.Add("guid", guid.ToString());
PostgreSQLConn.ExecuteNonQuery(cmd, Parent.CurrentUser);
}
tran.Commit();
}
}
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();
}
}
}