src/modules/text-highlight/e-mail-parser-text-highlight.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify it
   3  * under the terms of the GNU Lesser General Public License as published by
   4  * the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful, but
   7  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   8  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   9  * for more details.
  10  *
  11  * You should have received a copy of the GNU Lesser General Public License
  12  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  13  */
  14
  15 #include "evolution-config.h"
  16
  17 #include <string.h>
  18 #include <gtk/gtk.h>
  19 #include <glib/gi18n.h>
  20 #include <camel/camel.h>
  21
  22 #include "e-mail-parser-text-highlight.h"
  23 #include "languages.h"
  24
  25 #include <em-format/e-mail-extension-registry.h>
  26 #include <em-format/e-mail-parser-extension.h>
  27 #include <em-format/e-mail-part.h>
  28 #include <em-format/e-mail-part-utils.h>
  29
  30 #include <libebackend/libebackend.h>
  31
  32 #define d(x)
  33
  34 typedef EMailParserExtension EMailParserTextHighlight;
  35 typedef EMailParserExtensionClass EMailParserTextHighlightClass;
  36
  37 typedef EExtension EMailParserTextHighlightLoader;
  38 typedef EExtensionClass EMailParserTextHighlightLoaderClass;
  39
  40 GType e_mail_parser_text_highlight_get_type (void);
  41
  42 G_DEFINE_DYNAMIC_TYPE (
  43         EMailParserTextHighlight,
  44         e_mail_parser_text_highlight,
  45         E_TYPE_MAIL_PARSER_EXTENSION)
  46
  47 static gboolean
  48 empe_text_highlight_parse (EMailParserExtension *extension,
  49                            EMailParser *parser,
  50                            CamelMimePart *part,
  51                            GString *part_id,
  52                            GCancellable *cancellable,
  53                            GQueue *out_mail_parts)
  54 {
  55         CamelContentType *ct;
  56         gboolean handled;
  57         gint len;
  58
  59         /* Prevent recursion */
  60         if (g_str_has_suffix (part_id->str, ".text-highlight"))
  61                 return FALSE;
  62
  63         /* Don't parse text/html if it's not an attachment */
  64         ct = camel_mime_part_get_content_type (part);
  65         if (camel_content_type_is (ct, "text", "html")) {
  66                 const CamelContentDisposition *disp;
  67
  68                 disp = camel_mime_part_get_content_disposition (part);
  69                 if (!disp || (g_strcmp0 (disp->disposition, "attachment") != 0))
  70                         return FALSE;
  71         }
  72
  73         len = part_id->len;
  74         g_string_append (part_id, ".text-highlight");
  75
  76         /* All source codes and scripts are in general plain texts,
  77          * so let text/plain parser handle it. */
  78
  79         handled = e_mail_parser_parse_part_as (
  80                 parser, part, part_id, "text/plain",
  81                 cancellable, out_mail_parts);
  82
  83         g_string_truncate (part_id, len);
  84
  85         return handled;
  86 }
  87
  88 static void
  89 e_mail_parser_text_highlight_class_init (EMailParserExtensionClass *class)
  90 {
  91         class->mime_types = get_mime_types ();
  92         class->parse = empe_text_highlight_parse;
  93 }
  94
  95 void
  96 e_mail_parser_text_highlight_class_finalize (EMailParserExtensionClass *class)
  97 {
  98 }
  99
 100 static void
 101 e_mail_parser_text_highlight_init (EMailParserExtension *extension)
 102 {
 103 }
 104
 105 void
 106 e_mail_parser_text_highlight_type_register (GTypeModule *type_module)
 107 {
 108         e_mail_parser_text_highlight_register_type (type_module);
 109 }
 110