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+====== html_indexer plugin ======
+===== Purpose =====
+This is an **incoming_mimeprocess** plugin that recursively searches for HTML parts in the message, convert them to a text format, and pass them to the full text indexer.
+===== Dependencies =====
+Requires
+  * manitou-mdx 0.9.11 or above
+  * CPAN [[http://search.cpan.org/~sburke/HTML-Format-2.04/lib/HTML/FormatText.pm|HTML::FormatText]] module
+===== Code =====
+[[http://www.manitou-mail.org/download/mdx-plugins/html_indexer.pm||Download]]
+<code perl>
+# HTML attachments indexer plugin for Manitou-Mail
+# Copyright (C) 2009 Daniel Verite
+# This file is part of Manitou-Mail (see http://www.manitou-mail.org)
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+package Manitou::Plugins::html_indexer;
+use HTML::TreeBuilder;
+use HTML::FormatText;
+use IO::Handle;
+sub init {
+  shift;                        # dbh
+  my ($args)=@_;
+  my $self={};
+  bless $self;
+  return $self;
+}
+sub finish {
+  # nothing to do
+;
+}
+sub index_contents {
+  my ($fh, $ctxt)=@_;
+  my $html;
+  my $text;
+  {
+    local $/;
+    $html = $fh->getline();
+  }
+  if (defined $html) {
+    my $tree = HTML::TreeBuilder->new;
+    $tree->parse_content($html);
+    my $formatter = HTML::FormatText->new(leftmargin=>0, rightmargin=>78);
+    $text = $formatter->format($tree);
+  }
+  if (defined $text) {
+    Manitou::Words::index_words($ctxt->{'dbh'}, $ctxt->{'mail_id'}, \$text);
+  }
+}
+sub process_parts {
+  my ($obj,$ctxt) = @_;;
+  if ($obj->is_multipart) {
+    foreach my $subobj ($obj->parts) {
+      process_parts($subobj, $ctxt);    # recurse
+    }
+  }
+  else {
+    my $type=$obj->effective_type;
+    if ($type eq "text/html") {
+      my $io = $obj->bodyhandle->open("r");
+      index_contents($io, $ctxt);
+      $io->close;
+    }
+  }
+}
+sub process {
+  my ($self,$ctxt)=@_;
+  process_parts($ctxt->{'mimeobj'}, $ctxt);
+;
+}
+;
+</code>