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-tny-platform-factory.h>
  36 #include <tny-camel-stream.h>
  37 #include <camel/camel-stream-mem.h>
  38
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include <config.h>
  42 #endif /*HAVE_CONFIG_H */
  43
  44 #include <modest-tny-msg.h>
  45 #include "modest-text-utils.h"
  46
  47 static TnyMimePart * add_body_part (TnyMsg *msg, const gchar *body,
  48                                     const gchar *content_type, gboolean has_attachments);
  49 static void add_attachments (TnyMsg *msg, GList *attachments_list);
  50 static char * get_content_type(const gchar *s);
  51 static gboolean is_ascii(const gchar *s);
  52
  53 TnyMsg*
  54 modest_tny_msg_new (const gchar* mailto, const gchar* from, const gchar *cc,
  55                     const gchar *bcc, const gchar* subject, const gchar *body,
  56                     GSList *attachments)
  57 {
  58         TnyPlatformFactory *fact;
  59         TnyMsg *new_msg;
  60         TnyHeader *header;
  61         gchar *content_type;
  62
  63         /* Create new msg */
  64         fact    = modest_runtime_get_platform_factory ();
  65         new_msg = tny_platform_factory_new_msg (fact);
  66         header  = tny_platform_factory_new_header (fact);
  67
  68         /* WARNING: set the header before assign values to it */
  69         tny_msg_set_header (new_msg, header);
  70         tny_header_set_from (TNY_HEADER (header), from);
  71         tny_header_set_replyto (TNY_HEADER (header), from);
  72         tny_header_set_to (TNY_HEADER (header), mailto);
  73         tny_header_set_cc (TNY_HEADER (header), cc);
  74         tny_header_set_bcc (TNY_HEADER (header), bcc);
  75         tny_header_set_subject (TNY_HEADER (header), subject);
  76
  77         content_type = get_content_type(body);
  78
  79
  80         /* Add the body of the new mail */
  81         add_body_part (new_msg, body, content_type, (attachments ? TRUE: FALSE));
  82
  83         /* Add attachments */
  84         add_attachments (new_msg, (GList*) attachments);
  85
  86         return new_msg;
  87 }
  88
  89
  90 /* FIXME: this func copy from modest-mail-operation: refactor */
  91 static TnyMimePart *
  92 add_body_part (TnyMsg *msg,
  93                const gchar *body,
  94                const gchar *content_type,
  95                gboolean has_attachments)
  96 {
  97         TnyMimePart *text_body_part = NULL;
  98         TnyStream *text_body_stream;
  99
 100         /* Create the stream */
 101         text_body_stream = TNY_STREAM (tny_camel_stream_new
 102                                        (camel_stream_mem_new_with_buffer
 103                                         (body, strlen(body))));
 104
 105         /* Create body part if needed */
 106         if (has_attachments)
 107                 text_body_part = tny_platform_factory_new_mime_part
 108                         (modest_runtime_get_platform_factory ());
 109         else
 110                 text_body_part = TNY_MIME_PART(msg);
 111
 112         /* Construct MIME part */
 113         tny_stream_reset (text_body_stream);
 114         tny_mime_part_construct_from_stream (text_body_part,
 115                                              text_body_stream,
 116                                              content_type);
 117         tny_stream_reset (text_body_stream);
 118
 119         /* Add part if needed */
 120         if (has_attachments) {
 121                 tny_mime_part_add_part (TNY_MIME_PART (msg), text_body_part);
 122                 g_object_unref (G_OBJECT(text_body_part));
 123         }
 124
 125         /* Clean */
 126         g_object_unref (text_body_stream);
 127
 128         return text_body_part;
 129 }
 130
 131 static void
 132 add_attachments (TnyMsg *msg, GList *attachments_list)
 133 {
 134         GList *pos;
 135         TnyMimePart *attachment_part, *old_attachment;
 136         const gchar *attachment_content_type;
 137         const gchar *attachment_filename;
 138         TnyStream *attachment_stream;
 139
 140         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 141
 142                 old_attachment = pos->data;
 143                 attachment_filename = tny_mime_part_get_filename (old_attachment);
 144                 attachment_stream = tny_mime_part_get_stream (old_attachment);
 145                 attachment_part = tny_platform_factory_new_mime_part (
 146                         modest_runtime_get_platform_factory());
 147
 148                 attachment_content_type = tny_mime_part_get_content_type (old_attachment);
 149
 150                 tny_mime_part_construct_from_stream (attachment_part,
 151                                                      attachment_stream,
 152                                                      attachment_content_type);
 153                 tny_stream_reset (attachment_stream);
 154
 155                 tny_mime_part_set_filename (attachment_part, attachment_filename);
 156
 157                 tny_mime_part_add_part (TNY_MIME_PART (msg), attachment_part);
 158 /*              g_object_unref (attachment_part); */
 159         }
 160 }
 161
 162
 163 gchar *
 164 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html)
 165 {
 166         TnyStream *stream;
 167         TnyMimePart *body;
 168         GtkTextBuffer *buf;
 169         GtkTextIter start, end;
 170         gchar *to_quote;
 171
 172         body = modest_tny_msg_find_body_part(msg, want_html);
 173         if (!body)
 174                 return NULL;
 175
 176         buf = gtk_text_buffer_new (NULL);
 177         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 178         tny_stream_reset (stream);
 179         tny_mime_part_decode_to_stream (body, stream);
 180         tny_stream_reset (stream);
 181
 182         g_object_unref (G_OBJECT(stream));
 183         g_object_unref (G_OBJECT(body));
 184
 185         gtk_text_buffer_get_bounds (buf, &start, &end);
 186         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 187         g_object_unref (buf);
 188
 189         return to_quote;
 190 }
 191
 192
 193 TnyMimePart*
 194 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 195 {
 196         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 197         TnyMimePart *part = NULL;
 198         TnyList *parts;
 199         TnyIterator *iter;
 200
 201         if (!msg)
 202                 return NULL;
 203
 204         parts = TNY_LIST (tny_simple_list_new());
 205         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 206
 207         iter  = tny_list_create_iterator(parts);
 208
 209         /* no parts? assume it's single-part message */
 210         if (tny_iterator_is_done(iter))
 211                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 212         else {
 213                 gchar *content_type = NULL;
 214                 do {
 215                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 216
 217                         /* we need to strdown the content type, because
 218                          * tny_mime_part_has_content_type does not do it...
 219                          */
 220                         content_type = g_ascii_strdown
 221                                 (tny_mime_part_get_content_type (part), -1);
 222
 223                         if (g_str_has_prefix (content_type, mime_type) &&
 224                             !tny_mime_part_is_attachment (part))
 225                                 break;
 226
 227                         if (g_str_has_prefix(content_type, "multipart")) {
 228                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 229                                 if (part)
 230                                         break;
 231                         }
 232                         if (part)
 233                                 g_object_unref (G_OBJECT(part));
 234
 235                         part = NULL;
 236
 237                         g_free (content_type);
 238                         content_type = NULL;
 239
 240                         tny_iterator_next (iter);
 241
 242                 } while (!tny_iterator_is_done(iter));
 243                 g_free (content_type);
 244         }
 245
 246         g_object_unref (G_OBJECT(iter));
 247         g_object_unref (G_OBJECT(parts));
 248
 249         /* if were trying to find an HTML part and couldn't find it,
 250          * try to find a text/plain part instead
 251          */
 252         if (!part && want_html)
 253                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 254         else
 255                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 256                               * part */
 257 }
 258
 259
 260 TnyMimePart*
 261 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 262 {
 263         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 264                                                              want_html);
 265 }
 266
 267
 268
 269 static gboolean
 270 is_ascii(const gchar *s)
 271 {
 272         while (s[0]) {
 273                 if (s[0] & 128 || s[0] < 32)
 274                         return FALSE;
 275                 s++;
 276         }
 277         return TRUE;
 278 }
 279
 280 static char *
 281 get_content_type(const gchar *s)
 282 {
 283         GString *type;
 284
 285         type = g_string_new("text/plain");
 286         if (!is_ascii(s)) {
 287                 if (g_utf8_validate(s, -1, NULL)) {
 288                         g_string_append(type, "; charset=\"utf-8\"");
 289                 } else {
 290                         /* it should be impossible to reach this, but better safe than sorry */
 291                         g_warning("invalid utf8 in message");
 292                         g_string_append(type, "; charset=\"latin1\"");
 293                 }
 294         }
 295         return g_string_free(type, FALSE);
 296 }