private static bool CheckShouldRemoveContents(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!stream.CanSeek)
{
throw new ArgumentException("Stream is required to support Seek operations, and does not");
}
byte[] array = new byte[512];
int bytesToRead = stream.Read(array, 0, 512);
bool result = ZipEntryAttachment.CheckShouldRemoveContents(array, bytesToRead);
stream.Seek(0L, SeekOrigin.Begin);
return(result);
}
private Stream GetUnfilteredStream(Stream stream)
{
if (!stream.CanSeek)
{
throw new ArgumentException("stream", "Stream is required to support Seek operations, and does not");
}
if (!this.doNotSniff && this.isNotHtmlandNotXml && ZipEntryAttachment.CheckShouldRemoveContents(stream))
{
if (ExTraceGlobals.AttachmentHandlingTracer.IsTraceEnabled(TraceType.DebugTrace))
{
ExTraceGlobals.AttachmentHandlingTracer.TraceDebug <string, string>((long)this.GetHashCode(), "ZipEntryAttachment.GetUnfilteredStream: Return contents removed for attachment {0}: mailbox {1}", this.fileName, AttachmentUtilities.TryGetMailboxIdentityName());
}
return(ZipEntryAttachment.GetContentsReplacementStream(-1868113279));
}
if (ExTraceGlobals.AttachmentHandlingTracer.IsTraceEnabled(TraceType.DebugTrace))
{
ExTraceGlobals.AttachmentHandlingTracer.TraceDebug <string, string>((long)this.GetHashCode(), "ZipEntryAttachment.GetUnfilteredStream: Return original contents for attachment {0}: mailbox {1}", this.fileName, AttachmentUtilities.TryGetMailboxIdentityName());
}
return(stream);
}
