public StreamWrapper (GMime.Stream stream)
{
if (stream == null)
throw new ArgumentNullException ();
this.stream = stream;
}
/**
* Create an indexable from an mbox message
* Most of the code here is from Evo backend
*/
public Indexable MessageToIndexable (string file_name, System.Uri uri, GMime.Message message, string folder_name)
{
//Logger.Log.Debug ("Indexing " + uri + " in folder " + folder_name);
Indexable indexable = new Indexable (uri);
// set parent uri to the filename so that when an mbox file
// is deleted, all the messages in that file can be deleted
indexable.ParentUri = UriFu.PathToFileUri (file_name);
indexable.Timestamp = message.Date.ToUniversalTime ();
indexable.HitType = "MailMessage";
indexable.MimeType = "message/rfc822";
indexable.CacheContent = true;
indexable.AddProperty (Property.NewUnsearched ("fixme:client", "kmail"));
indexable.AddProperty (Property.NewUnsearched ("fixme:account", account_name));
indexable.AddProperty (Property.NewUnsearched ("fixme:folder", folder_name));
GMime.InternetAddressList addrs;
if (folder_name == Queryable.SentMailFolderName) {
addrs = message.GetRecipients (GMime.RecipientType.To);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewKeyword ("fixme:sentTo", mailbox.Address));
}
}
addrs.Dispose ();
}
if (folder_name == Queryable.SentMailFolderName) {
addrs = message.GetRecipients (GMime.RecipientType.Cc);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewKeyword ("fixme:sentTo", mailbox.Address));
}
}
addrs.Dispose ();
}
if (folder_name != Queryable.SentMailFolderName) {
addrs = GMime.InternetAddressList.Parse (message.Sender);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewKeyword ("fixme:gotFrom", mailbox.Address));
}
}
addrs.Dispose ();
}
if (folder_name == Queryable.SentMailFolderName)
indexable.AddProperty (Property.NewFlag ("fixme:isSent"));
else {
string kmail_msg_sent = message.GetHeader ("X-KMail-Link-Type");
if (kmail_msg_sent == "reply")
indexable.AddProperty (Property.NewFlag ("fixme:isSent"));
}
// no need to store date again, use the issent flag to determine if the date is sentdate or not
#if false
if (folder_name == Queryable.SentMailFolderName)
indexable.AddProperty (Property.NewDate ("fixme:sentdate", message.Date.ToUniversalTime ()));
else
indexable.AddProperty (Property.NewDate ("fixme:received", message.Date.ToUniversalTime ()));
#endif
indexable.SetBinaryStream (message.Stream);
return indexable;
}
private Indexable GMimeMessageToIndexable (string uid, GMime.Message message, uint flags)
{
// Don't index messages flagged as junk
if (CheckFlags (flags, B_U_Camel.CamelFlags.Junk))
return null;
System.Uri uri = EvolutionMailQueryable.EmailUri (this.account_name, this.folder_name, uid);
Indexable indexable = new Indexable (uri);
indexable.Timestamp = message.Date.ToUniversalTime ();
indexable.HitType = "MailMessage";
indexable.MimeType = "message/rfc822";
indexable.CacheContent = true;
indexable.AddProperty (Property.NewUnsearched ("fixme:client", "evolution"));
indexable.AddProperty (Property.NewUnsearched ("fixme:account", "Local"));
indexable.AddProperty (Property.NewUnsearched ("fixme:folder", this.folder_name));
GMime.InternetAddressList addrs;
if (this.folder_name == "Sent") {
addrs = message.GetRecipients (GMime.RecipientType.To);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewUnsearched ("fixme:sentTo", mailbox.Address));
}
}
addrs.Dispose ();
}
if (this.folder_name == "Sent") {
addrs = message.GetRecipients (GMime.RecipientType.Cc);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewUnsearched ("fixme:sentTo", mailbox.Address));
}
}
addrs.Dispose ();
}
if (this.folder_name != "Sent") {
addrs = GMime.InternetAddressList.Parse (message.Sender);
foreach (GMime.InternetAddress ia in addrs) {
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
indexable.AddProperty (Property.NewUnsearched ("fixme:gotFrom", mailbox.Address));
}
}
addrs.Dispose ();
}
if (this.folder_name == "Sent")
indexable.AddProperty (Property.NewFlag ("fixme:isSent"));
Property flag_prop = Property.NewUnsearched ("fixme:flags", flags);
flag_prop.IsMutable = true;
indexable.AddProperty (flag_prop);
if (CheckFlags (flags, B_U_Camel.CamelFlags.Answered))
indexable.AddProperty (Property.NewFlag ("fixme:isAnswered"));
if (CheckFlags (flags, B_U_Camel.CamelFlags.Deleted))
indexable.AddProperty (Property.NewFlag ("fixme:isDeleted"));
if (CheckFlags (flags, B_U_Camel.CamelFlags.Draft))
indexable.AddProperty (Property.NewFlag ("fixme:isDraft"));
if (CheckFlags (flags, B_U_Camel.CamelFlags.Flagged))
indexable.AddProperty (Property.NewFlag ("fixme:isFlagged"));
if (CheckFlags (flags, B_U_Camel.CamelFlags.Seen))
indexable.AddProperty (Property.NewFlag ("fixme:isSeen"));
if (CheckFlags (flags, B_U_Camel.CamelFlags.AnsweredAll))
indexable.AddProperty (Property.NewFlag ("fixme:isAnsweredAll"));
indexable.SetBinaryStream (message.Stream);
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;
}
private void AddEmailLink (GMime.InternetAddress ia)
{
#if ENABLE_RDF_ADAPTER
if (String.IsNullOrEmpty (ia.Name))
AddLink (String.Concat ("mailto://", ia.Addr));
else
AddLink (String.Concat ("mailto://", ia.Addr, "/", Uri.EscapeDataString (ia.Name)));
#endif
}
private bool HasAttachments (GMime.Object mime_part)
{
if (mime_part is GMime.MessagePart)
return true;
// Messages that are multipart/alternative shouldn't be considered as having
// attachments. Unless of course they do.
if (mime_part is GMime.Multipart && mime_part.ContentType.MediaSubtype.ToLower () != "alternative")
return true;
return false;
}
// Copied from FilterMail.cs:DoPullProperties
private Hit MessageToHit (GMime.Message message)
{
string msgid = message.GetHeader ("Message-Id");
if (msgid == null)
return null;
msgid = GMime.Utils.DecodeMessageId (msgid);
Hit hit = new Hit ();
hit.Uri = new Uri (String.Format (GMAIL_HIT_URL, domain, msgid));
hit.AddProperty (Property.NewUnsearched ("beagle:HitType", "MailMessage"));
hit.AddProperty (Property.NewUnsearched ("beagle:MimeType", "text/html"));
hit.AddProperty (Property.NewUnsearched ("beagle:Source", "GMailSearch"));
hit.Score = 1.0;
hit.AddProperty (Property.NewUnsearched ("fixme:msgid", msgid));
string subject = GMime.Utils.HeaderDecodePhrase (message.Subject);
hit.AddProperty (Property.New ("dc:title", subject));
hit.Timestamp = message.Date.ToUniversalTime ();
hit.AddProperty (Property.NewDate ("fixme:date", message.Date.ToUniversalTime ()));
GMime.InternetAddressList addrs;
addrs = message.GetRecipients (GMime.RecipientType.To);
foreach (GMime.InternetAddress ia in addrs) {
hit.AddProperty (Property.NewUnsearched ("fixme:to", ia.ToString (false)));
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
hit.AddProperty (Property.New ("fixme:to_address", mailbox.Address));
}
hit.AddProperty (Property.New ("fixme:to_name", ia.Name));
}
addrs.Dispose ();
addrs = message.GetRecipients (GMime.RecipientType.Cc);
foreach (GMime.InternetAddress ia in addrs) {
hit.AddProperty (Property.NewUnsearched ("fixme:cc", ia.ToString (false)));
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
hit.AddProperty (Property.New ("fixme:cc_address", mailbox.Address));
}
hit.AddProperty (Property.New ("fixme:cc_name", ia.Name));
}
addrs.Dispose ();
addrs = GMime.InternetAddressList.Parse (message.Sender);
foreach (GMime.InternetAddress ia in addrs) {
hit.AddProperty (Property.NewUnsearched ("fixme:from", ia.ToString (false)));
if (ia is GMime.InternetAddressMailbox) {
GMime.InternetAddressMailbox mailbox = ia as GMime.InternetAddressMailbox;
hit.AddProperty (Property.New ("fixme:from_address", mailbox.Address));
}
hit.AddProperty (Property.New ("fixme:from_name", ia.Name));
}
addrs.Dispose ();
foreach (GMime.References refs in message.References)
hit.AddProperty (Property.NewUnsearched ("fixme:reference", refs.MessageId));
string list_id = message.GetHeader ("List-Id");
if (list_id != null)
hit.AddProperty (Property.New ("fixme:mlist", GMime.Utils.HeaderDecodePhrase (list_id)));
return hit;
}