private Indexable OperaRowToIndexable (OperaHistory.Row row)
{
// It's unsafe to index secure content since it may contain sensitive data
if (row.Address.Scheme == Uri.UriSchemeHttps)
return null;
Indexable indexable = new Indexable (row.Address);
indexable.HitType = "WebHistory";
indexable.MimeType = row.MimeType;
indexable.Timestamp = row.LastVisited;
indexable.AddProperty(Beagle.Property.New ("fixme:host",row.Address.Host));
indexable.AddProperty (Beagle.Property.NewUnsearched ("fixme:size", row.Length));
// hint for the filter about the charset
indexable.AddProperty (Property.NewUnsearched (StringFu.UnindexedNamespace + "charset", row.Encoding.ToString ()));
if(row.Compression == "gzip")
indexable.SetBinaryStream (new GZipInputStream (File.OpenRead (Path.Combine (cache_dir, row.LocalFileName))));
else
indexable.ContentUri = new Uri (Path.Combine (cache_dir, row.LocalFileName));
indexer.AttributeStore.AttachLastWriteTime (Path.Combine (cache_dir, row.LocalFileName), DateTime.UtcNow);
return indexable;
}
public void OnEachPart (GMime.Object mime_part)
{
GMime.Object part = null;
bool part_needs_dispose = false;
//for (int i = 0; i < this.depth; i++)
// Console.Write (" ");
//Console.WriteLine ("Content-Type: {0}", mime_part.ContentType);
++depth;
if (mime_part is GMime.MessagePart) {
GMime.MessagePart msg_part = (GMime.MessagePart) mime_part;
using (GMime.Message message = msg_part.Message) {
using (GMime.Object subpart = message.MimePart)
this.OnEachPart (subpart);
}
} else if (mime_part is GMime.Multipart) {
GMime.Multipart multipart = (GMime.Multipart) mime_part;
int num_parts = multipart.Count;
// If the mimetype is multipart/alternative, we only want to index
// one part -- the richest one we can filter.
if (mime_part.ContentType.MediaSubtype.ToLower () == "alternative") {
// The richest formats are at the end, so work from there
// backward.
for (int i = num_parts - 1; i >= 0; i--) {
GMime.Object subpart = multipart[i];
if (IsMimeTypeHandled (subpart.ContentType.ToString ())) {
part = subpart;
part_needs_dispose = true;
break;
} else {
subpart.Dispose ();
}
}
}
// If it's not alternative, or we don't know how to filter any of
// the parts, treat them like a bunch of attachments.
if (part == null) {
for (int i = 0; i < num_parts; i++) {
using (GMime.Object subpart = multipart[i])
this.OnEachPart (subpart);
}
}
} else if (mime_part is GMime.Part)
part = mime_part;
else
throw new Exception (String.Format ("Unknown part type: {0}", part.GetType ()));
if (part != null) {
System.IO.Stream stream = null;
using (GMime.DataWrapper content_obj = ((GMime.Part) part).ContentObject)
stream = content_obj.Stream;
// If this is the only part and it's plain text, we
// want to just attach it to our filter instead of
// creating a child indexable for it.
bool no_child_needed = false;
string mime_type = part.ContentType.ToString ().ToLower ();
if (this.depth == 1 && this.count == 0) {
if (mime_type == "text/plain") {
no_child_needed = true;
this.reader = new StreamReader (stream);
} else if (mime_type == "text/html") {
no_child_needed = true;
html_part = true;
string enc = part.ContentType.GetParameter ("charset");
// DataWrapper.Stream is a very limited stream
// and does not allow Seek or Tell
// HtmlFilter requires Stream.Position=0.
// Play safe and create a memorystream
// for HTML parsing.
GMime.StreamMem mem_stream;
mem_stream = new GMime.StreamMem ();
GMime.Stream data_stream;
data_stream = ((StreamWrapper) stream).GMimeStream;
data_stream.WriteToStream (mem_stream);
data_stream.Flush ();
// The StreamWrapper and hence the memory_stream
// will be closed when the reader is closed
// after Pull()-ing is done.
System.IO.Stream html_stream;
html_stream = new StreamWrapper (mem_stream);
html_stream.Seek (0, SeekOrigin.Begin);
stream.Close ();
try {
this.reader = FilterHtml.GetHtmlReader (html_stream, enc, link_handler);
} catch (Exception e) {
Log.Debug (e, "Exception while filtering HTML email {0}", this.indexable.Uri);
this.reader = null;
html_stream.Close ();
html_part = false;
}
}
}
if (!no_child_needed) {
// Check the mime type against the blacklist and don't index any
// parts that are contained within. That way the user doesn't
// get flooded with pointless signatures and vcard and ical
// attachments along with (real) attachments.
if (Array.IndexOf (blacklisted_mime_types, mime_type) == -1) {
string sub_uri = "#" + this.count;
Indexable child;
child = new Indexable (UriFu.AddFragment (this.indexable.Uri, sub_uri, true));
child.DisplayUri = new Uri (this.indexable.DisplayUri.ToString () + "#" + this.count);
// This is a special case.
// Even for mails found on disk, MailMessage hitype is set
child.HitType = "MailMessage";
child.MimeType = mime_type;
// If this is the richest part we found for multipart emails, add its content to textcache
if (snippet_attachment ||
(this.depth == 1 && this.count == 0))
child.CacheContent = true;
else
child.CacheContent = false;
string filename = ((GMime.Part) part).Filename;
if (! String.IsNullOrEmpty (filename)) {
child.AddProperty (Property.NewKeyword ("fixme:attachment_title", filename));
foreach (Property prop in Property.StandardFileProperties (filename, false))
child.AddProperty (prop);
}
// Store length of attachment
long length = stream.Length;
if (length != -1)
child.AddProperty (Property.NewUnsearched ("fixme:filesize", length));
if (part.ContentType.MediaType.ToLower () == "text")
child.SetTextReader (new StreamReader (stream));
else
child.SetBinaryStream (stream);
child.SetChildOf (this.indexable);
child.StoreStream ();
child.CloseStreams ();
this.child_indexables.Add (child);
} else {
Log.Debug ("Skipping attachment {0}#{1} with blacklisted mime type {2}",
this.indexable.Uri, this.count, mime_type);
}
}
this.count++;
}
if (part_needs_dispose)
part.Dispose ();
--depth;
}