git.maemo.org Git - modest/blob - src/modest-tny-msg-actions.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30
  31 #include <gtk/gtk.h>
  32 #include <gtkhtml/gtkhtml.h>
  33 #include <tny-gtk-text-buffer-stream.h>
  34 #include <tny-simple-list.h>
  35 #include <tny-folder.h>
  36
  37 #ifdef HAVE_CONFIG_H
  38 #include <config.h>
  39 #endif /*HAVE_CONFIG_H */
  40
  41 #include "modest-tny-msg-actions.h"
  42 #include "modest-text-utils.h"
  43
  44 static const gchar *
  45 get_body_text (TnyMsg *msg, gboolean want_html)
  46 {
  47         TnyStream *stream;
  48         TnyMimePart *body;
  49         GtkTextBuffer *buf;
  50         GtkTextIter start, end;
  51         const gchar *to_quote;
  52
  53         body = modest_tny_msg_actions_find_body_part(msg, want_html);
  54         if (!body)
  55                 return NULL;
  56
  57         buf = gtk_text_buffer_new (NULL);
  58         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
  59         tny_stream_reset (stream);
  60         tny_mime_part_decode_to_stream (body, stream);
  61         tny_stream_reset (stream);
  62
  63         g_object_unref (G_OBJECT(stream));
  64         g_object_unref (G_OBJECT(body));
  65
  66         gtk_text_buffer_get_bounds (buf, &start, &end);
  67         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  68         g_object_unref (buf);
  69
  70         return to_quote;
  71 }
  72
  73 static TnyMimePart*
  74 modest_tny_msg_actions_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
  75 {
  76         const gchar *mime_type = want_html ? "text/html" : "text/plain";
  77         TnyMimePart *part = NULL;
  78         TnyList *parts;
  79         TnyIterator *iter;
  80
  81         if (!msg)
  82                 return NULL;
  83
  84         parts = TNY_LIST (tny_simple_list_new());
  85         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
  86
  87         iter  = tny_list_create_iterator(parts);
  88
  89         /* no parts? assume it's single-part message */
  90         if (tny_iterator_is_done(iter))
  91                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
  92         else {
  93                 do {
  94                         const gchar *ct;
  95                         gchar *content_type;
  96                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
  97
  98                         /* we need to strdown the content type, because
  99                          * tny_mime_part_has_content_type does not do it...
 100                          */
 101                         ct = tny_mime_part_get_content_type (part);
 102                         content_type = g_ascii_strdown (ct, strlen(ct));
 103
 104                         if (g_str_has_prefix (content_type, mime_type) &&
 105                             !tny_mime_part_is_attachment (part)) {
 106                                 g_free (content_type);
 107                                 break;
 108                         }
 109
 110                         if (g_str_has_prefix(content_type, "multipart")) {
 111                                 part = modest_tny_msg_actions_find_body_part_from_mime_part (part,
 112                                                                                              want_html);
 113                                 g_free (content_type);
 114                                 if (part)
 115                                         break;
 116                         }
 117
 118                         g_free (content_type);
 119                         part = NULL;
 120                         tny_iterator_next (iter);
 121
 122                 } while (!tny_iterator_is_done(iter));
 123         }
 124
 125         /* did we find a matching part? */
 126         if (part)
 127                 g_object_ref (G_OBJECT(part));
 128
 129         g_object_unref (G_OBJECT(iter));
 130         g_object_unref (G_OBJECT(parts));
 131
 132         /* if were trying to find an HTML part and couldn't find it,
 133          * try to find a text/plain part instead
 134          */
 135         if (!part && want_html)
 136                 return modest_tny_msg_actions_find_body_part_from_mime_part (msg, FALSE);
 137
 138         if (!part)
 139                 g_printerr ("modest: cannot find body part\n");
 140
 141         return part ? part : NULL;
 142 }
 143
 144
 145 TnyMimePart*
 146 modest_tny_msg_actions_find_body_part (TnyMsg *msg, gboolean want_html)
 147 {
 148         return modest_tny_msg_actions_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 149                                                                      want_html);
 150 }
 151
 152
 153 TnyMimePart *
 154 modest_tny_msg_actions_find_nth_part (TnyMsg *msg, gint index)
 155 {
 156         TnyMimePart *part;
 157         TnyList *parts;
 158         TnyIterator *iter;
 159
 160         g_return_val_if_fail (msg, NULL);
 161         g_return_val_if_fail (index > 0, NULL);
 162
 163         parts = TNY_LIST(tny_simple_list_new());
 164         tny_mime_part_get_parts (TNY_MIME_PART(msg), parts);
 165         iter  = tny_list_create_iterator (parts);
 166
 167         part = NULL;
 168
 169         if (!tny_iterator_is_done(iter)) {
 170                 tny_iterator_nth (iter, index);
 171                 part = TNY_MIME_PART(tny_iterator_get_current (iter));
 172         }
 173
 174         g_object_unref (G_OBJECT(iter));
 175         g_object_unref (G_OBJECT(parts));
 176
 177         return part;
 178 }
 179
 180 gchar *
 181 modest_tny_msg_actions_find_body (TnyMsg *msg, gboolean want_html)
 182 {
 183         const gchar *body;
 184
 185         body = get_body_text (msg, want_html);
 186
 187         if (body)
 188                 return g_strdup (body);
 189         else
 190                 return NULL;
 191 }