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 #include <string.h>
  31 #include <gtkhtml/gtkhtml.h>
  32 #include <tny-gtk-text-buffer-stream.h>
  33 #include <tny-simple-list.h>
  34 #include <tny-folder.h>
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include <config.h>
  38 #endif /*HAVE_CONFIG_H */
  39
  40 #include "modest-tny-msg-actions.h"
  41 #include "modest-text-utils.h"
  42
  43 static const gchar *
  44 get_body_text (TnyMsg *msg, gboolean want_html)
  45 {
  46         TnyStream *stream;
  47         TnyMimePart *body;
  48         GtkTextBuffer *buf;
  49         GtkTextIter start, end;
  50         const gchar *to_quote;
  51
  52         body = modest_tny_msg_actions_find_body_part(msg, want_html);
  53         if (!body)
  54                 return NULL;
  55
  56         buf = gtk_text_buffer_new (NULL);
  57         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
  58         tny_stream_reset (stream);
  59         tny_mime_part_decode_to_stream (body, stream);
  60         tny_stream_reset (stream);
  61
  62         g_object_unref (G_OBJECT(stream));
  63         g_object_unref (G_OBJECT(body));
  64
  65         gtk_text_buffer_get_bounds (buf, &start, &end);
  66         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  67         g_object_unref (buf);
  68
  69         return to_quote;
  70 }
  71
  72 static TnyMimePart*
  73 modest_tny_msg_actions_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
  74 {
  75         const gchar *mime_type = want_html ? "text/html" : "text/plain";
  76         TnyMimePart *part = NULL;
  77         TnyList *parts;
  78         TnyIterator *iter;
  79
  80         if (!msg)
  81                 return NULL;
  82
  83         parts = TNY_LIST (tny_simple_list_new());
  84         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
  85
  86         iter  = tny_list_create_iterator(parts);
  87
  88         /* no parts? assume it's single-part message */
  89         if (tny_iterator_is_done(iter))
  90                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
  91         else {
  92                 do {
  93                         const gchar *ct;
  94                         gchar *content_type;
  95                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
  96
  97                         /* we need to strdown the content type, because
  98                          * tny_mime_part_has_content_type does not do it...
  99                          */
 100                         ct = tny_mime_part_get_content_type (part);
 101                         content_type = g_ascii_strdown (ct, strlen(ct));
 102
 103                         if (g_str_has_prefix (content_type, mime_type) &&
 104                             !tny_mime_part_is_attachment (part)) {
 105                                 g_free (content_type);
 106                                 break;
 107                         }
 108
 109                         if (g_str_has_prefix(content_type, "multipart")) {
 110                                 part = modest_tny_msg_actions_find_body_part_from_mime_part (part,
 111                                                                                              want_html);
 112                                 g_free (content_type);
 113                                 if (part)
 114                                         break;
 115                         }
 116
 117                         g_free (content_type);
 118                         part = NULL;
 119                         tny_iterator_next (iter);
 120
 121                 } while (!tny_iterator_is_done(iter));
 122         }
 123
 124         /* did we find a matching part? */
 125         if (part)
 126                 g_object_ref (G_OBJECT(part));
 127
 128         g_object_unref (G_OBJECT(iter));
 129         g_object_unref (G_OBJECT(parts));
 130
 131         /* if were trying to find an HTML part and couldn't find it,
 132          * try to find a text/plain part instead
 133          */
 134         if (!part && want_html)
 135                 return modest_tny_msg_actions_find_body_part_from_mime_part (msg, FALSE);
 136
 137         if (!part)
 138                 g_printerr ("modest: cannot find body part\n");
 139
 140         return part ? part : NULL;
 141 }
 142
 143
 144 TnyMimePart*
 145 modest_tny_msg_actions_find_body_part (TnyMsg *msg, gboolean want_html)
 146 {
 147         return modest_tny_msg_actions_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 148                                                                      want_html);
 149 }
 150
 151
 152 TnyMimePart *
 153 modest_tny_msg_actions_find_nth_part (TnyMsg *msg, gint index)
 154 {
 155         TnyMimePart *part;
 156         TnyList *parts;
 157         TnyIterator *iter;
 158
 159         g_return_val_if_fail (msg, NULL);
 160         g_return_val_if_fail (index > 0, NULL);
 161
 162         parts = TNY_LIST(tny_simple_list_new());
 163         tny_mime_part_get_parts (TNY_MIME_PART(msg), parts);
 164         iter  = tny_list_create_iterator (parts);
 165
 166         part = NULL;
 167
 168         if (!tny_iterator_is_done(iter)) {
 169                 tny_iterator_nth (iter, index);
 170                 part = TNY_MIME_PART(tny_iterator_get_current (iter));
 171         }
 172
 173         g_object_unref (G_OBJECT(iter));
 174         g_object_unref (G_OBJECT(parts));
 175
 176         return part;
 177 }
 178
 179 gchar *
 180 modest_tny_msg_actions_find_body (TnyMsg *msg, gboolean want_html)
 181 {
 182         const gchar *body;
 183
 184         body = get_body_text (msg, want_html);
 185
 186         if (body)
 187                 return g_strdup (body);
 188         else
 189                 return NULL;
 190 }