internal bool Read(
RequestMetadata md,
ContainerClient client,
string objectName,
long?indexStart,
int?count,
out string contentType,
out long contentLength,
out Stream stream,
out ErrorCode error)
{
error = ErrorCode.None;
contentType = null;
contentLength = 0;
stream = null;
if (md == null)
{
throw new ArgumentNullException(nameof(md));
}
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
if (String.IsNullOrEmpty(objectName))
{
throw new ArgumentNullException(nameof(objectName));
}
string header = _Header + "Read " + client.Container.UserGUID + "/" + client.Container.Name + "/" + objectName + " ";
if (!_Locks.AddReadLock(md))
{
_Logging.Warn(header + "unable to add read lock");
return(false);
}
if (indexStart != null && count != null)
{
#region Range-Read
if (!client.ReadRangeObject(objectName, Convert.ToInt64(indexStart), Convert.ToInt32(count), out contentType, out stream, out error))
{
_Logging.Warn(header + "unable to read range: " + error.ToString());
_Locks.RemoveReadLock(md);
return(false);
}
else
{
_Locks.RemoveReadLock(md);
string logData =
"Source: " + md.Http.Request.SourceIp + ":" + md.Http.Request.SourcePort + " " +
"User: "******" Index: " + indexStart;
logData += " Count: " + count;
client.AddAuditLogEntry(objectName, AuditLogEntryType.ReadRange, logData, false);
contentLength = (long)count;
return(true);
}
#endregion
}
else
{
#region Full-Read
if (!client.ReadObject(objectName, out contentType, out contentLength, out stream, out error))
{
_Logging.Warn(header + "unable to read object: " + error.ToString());
_Locks.RemoveReadLock(md);
return(false);
}
else
{
_Locks.RemoveReadLock(md);
string logData =
"Source: " + md.Http.Request.SourceIp + ":" + md.Http.Request.SourcePort + " " +
"User: " + md.Params.UserGuid;
client.AddAuditLogEntry(objectName, AuditLogEntryType.Read, logData, false);
return(true);
}
#endregion
}
}
