git.maemo.org Git - modest/blob - src/modest-tny-msg.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 #include <modest-runtime.h>
  36 #include <tny-camel-stream.h>
  37 #include <camel/camel-stream-mem.h>
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif /*HAVE_CONFIG_H */
  42
  43 #include <modest-tny-msg.h>
  44 #include "modest-text-utils.h"
  45
  46 static TnyMimePart * add_body_part (TnyMsg *msg, const gchar *body,
  47                                     const gchar *content_type, gboolean has_attachments);
  48 static void add_attachments (TnyMsg *msg, GList *attachments_list);
  49 static char * get_content_type(const gchar *s);
  50 static gboolean is_ascii(const gchar *s);
  51
  52 TnyMsg*
  53 modest_tny_msg_new (const gchar* mailto, const gchar* from, const gchar *cc,
  54                     const gchar *bcc, const gchar* subject, const gchar *body,
  55                     GSList *attachments)
  56 {
  57         TnyPlatformFactory *fact;
  58         TnyMsg *new_msg;
  59         TnyHeader *header;
  60         gchar *content_type;
  61
  62         /* Create new msg */
  63         fact    = modest_runtime_get_platform_factory ();
  64         new_msg = tny_platform_factory_new_msg (fact);
  65         header  = tny_msg_get_header (new_msg);
  66
  67         tny_header_set_from (TNY_HEADER (header), from);
  68         tny_header_set_replyto (TNY_HEADER (header), from);
  69         tny_header_set_to (TNY_HEADER (header), mailto);
  70         tny_header_set_cc (TNY_HEADER (header), cc);
  71         tny_header_set_bcc (TNY_HEADER (header), bcc);
  72         tny_header_set_subject (TNY_HEADER (header), subject);
  73
  74         content_type = get_content_type(body);
  75
  76         /* Add the body of the new mail */
  77         add_body_part (new_msg, body, content_type, (attachments ? TRUE: FALSE));
  78
  79         /* Add attachments */
  80         add_attachments (new_msg, (GList*) attachments);
  81
  82         return new_msg;
  83 }
  84
  85
  86 /* FIXME: this func copy from modest-mail-operation: refactor */
  87 static TnyMimePart *
  88 add_body_part (TnyMsg *msg,
  89                const gchar *body,
  90                const gchar *content_type,
  91                gboolean has_attachments)
  92 {
  93         TnyMimePart *text_body_part = NULL;
  94         TnyStream *text_body_stream;
  95
  96         /* Create the stream */
  97         text_body_stream = TNY_STREAM (tny_camel_stream_new
  98                                        (camel_stream_mem_new_with_buffer
  99                                         (body, strlen(body))));
 100
 101         /* Create body part if needed */
 102         if (has_attachments)
 103                 text_body_part = tny_platform_factory_new_mime_part
 104                         (modest_runtime_get_platform_factory ());
 105         else
 106                 text_body_part = TNY_MIME_PART(msg);
 107
 108         /* Construct MIME part */
 109         tny_stream_reset (text_body_stream);
 110         tny_mime_part_construct_from_stream (text_body_part,
 111                                              text_body_stream,
 112                                              content_type);
 113         tny_stream_reset (text_body_stream);
 114
 115         /* Add part if needed */
 116         if (has_attachments) {
 117                 tny_mime_part_add_part (TNY_MIME_PART (msg), text_body_part);
 118                 g_object_unref (G_OBJECT(text_body_part));
 119         }
 120
 121         /* Clean */
 122         g_object_unref (text_body_stream);
 123
 124         return text_body_part;
 125 }
 126
 127 static void
 128 add_attachments (TnyMsg *msg, GList *attachments_list)
 129 {
 130         GList *pos;
 131         TnyMimePart *attachment_part, *old_attachment;
 132         const gchar *attachment_content_type;
 133         const gchar *attachment_filename;
 134         TnyStream *attachment_stream;
 135
 136         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 137
 138                 old_attachment = pos->data;
 139                 attachment_filename = tny_mime_part_get_filename (old_attachment);
 140                 attachment_stream = tny_mime_part_get_stream (old_attachment);
 141                 attachment_part = tny_platform_factory_new_mime_part (
 142                         modest_runtime_get_platform_factory());
 143
 144                 attachment_content_type = tny_mime_part_get_content_type (old_attachment);
 145
 146                 tny_mime_part_construct_from_stream (attachment_part,
 147                                                      attachment_stream,
 148                                                      attachment_content_type);
 149                 tny_stream_reset (attachment_stream);
 150
 151                 tny_mime_part_set_filename (attachment_part, attachment_filename);
 152
 153                 tny_mime_part_add_part (TNY_MIME_PART (msg), attachment_part);
 154 /*              g_object_unref (attachment_part); */
 155         }
 156 }
 157
 158
 159 gchar *
 160 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html)
 161 {
 162         TnyStream *stream;
 163         TnyMimePart *body;
 164         GtkTextBuffer *buf;
 165         GtkTextIter start, end;
 166         gchar *to_quote;
 167
 168         body = modest_tny_msg_find_body_part(msg, want_html);
 169         if (!body)
 170                 return NULL;
 171
 172         buf = gtk_text_buffer_new (NULL);
 173         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 174         tny_stream_reset (stream);
 175         tny_mime_part_decode_to_stream (body, stream);
 176         tny_stream_reset (stream);
 177
 178         g_object_unref (G_OBJECT(stream));
 179         g_object_unref (G_OBJECT(body));
 180
 181         gtk_text_buffer_get_bounds (buf, &start, &end);
 182         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 183         g_object_unref (buf);
 184
 185         return to_quote;
 186 }
 187
 188
 189 TnyMimePart*
 190 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 191 {
 192         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 193         TnyMimePart *part = NULL;
 194         TnyList *parts;
 195         TnyIterator *iter;
 196
 197         if (!msg)
 198                 return NULL;
 199
 200         parts = TNY_LIST (tny_simple_list_new());
 201         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 202
 203         iter  = tny_list_create_iterator(parts);
 204
 205         /* no parts? assume it's single-part message */
 206         if (tny_iterator_is_done(iter))
 207                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 208         else {
 209                 gchar *content_type = NULL;
 210                 do {
 211                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 212
 213                         /* we need to strdown the content type, because
 214                          * tny_mime_part_has_content_type does not do it...
 215                          */
 216                         content_type = g_ascii_strdown
 217                                 (tny_mime_part_get_content_type (part), -1);
 218
 219                         if (g_str_has_prefix (content_type, mime_type) &&
 220                             !tny_mime_part_is_attachment (part))
 221                                 break;
 222
 223                         if (g_str_has_prefix(content_type, "multipart")) {
 224                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 225                                 if (part)
 226                                         break;
 227                         }
 228                         if (part)
 229                                 g_object_unref (G_OBJECT(part));
 230
 231                         part = NULL;
 232
 233                         g_free (content_type);
 234                         content_type = NULL;
 235
 236                         tny_iterator_next (iter);
 237
 238                 } while (!tny_iterator_is_done(iter));
 239                 g_free (content_type);
 240         }
 241
 242         g_object_unref (G_OBJECT(iter));
 243         g_object_unref (G_OBJECT(parts));
 244
 245         /* if were trying to find an HTML part and couldn't find it,
 246          * try to find a text/plain part instead
 247          */
 248         if (!part && want_html)
 249                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 250         else
 251                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 252                               * part */
 253 }
 254
 255
 256 TnyMimePart*
 257 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 258 {
 259         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 260                                                              want_html);
 261 }
 262
 263
 264
 265 static gboolean
 266 is_ascii(const gchar *s)
 267 {
 268         if (!s)
 269                 return TRUE;
 270         while (s[0]) {
 271                 if (s[0] & 128 || s[0] < 32)
 272                         return FALSE;
 273                 s++;
 274         }
 275         return TRUE;
 276 }
 277
 278 static char *
 279 get_content_type(const gchar *s)
 280 {
 281         GString *type;
 282
 283         type = g_string_new("text/plain");
 284         if (!is_ascii(s)) {
 285                 if (g_utf8_validate(s, -1, NULL)) {
 286                         g_string_append(type, "; charset=\"utf-8\"");
 287                 } else {
 288                         /* it should be impossible to reach this, but better safe than sorry */
 289                         g_warning("invalid utf8 in message");
 290                         g_string_append(type, "; charset=\"latin1\"");
 291                 }
 292         }
 293         return g_string_free(type, FALSE);
 294 }