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_platform_factory_new_header (fact);
  66
  67         /* WARNING: set the header before assign values to it */
  68         tny_msg_set_header (new_msg, header);
  69         tny_header_set_from (TNY_HEADER (header), from);
  70         tny_header_set_replyto (TNY_HEADER (header), from);
  71         tny_header_set_to (TNY_HEADER (header), mailto);
  72         tny_header_set_cc (TNY_HEADER (header), cc);
  73         tny_header_set_bcc (TNY_HEADER (header), bcc);
  74         tny_header_set_subject (TNY_HEADER (header), subject);
  75
  76         content_type = get_content_type(body);
  77
  78         /* Add the body of the new mail */
  79         add_body_part (new_msg, body, content_type, (attachments ? TRUE: FALSE));
  80
  81         /* Add attachments */
  82         add_attachments (new_msg, (GList*) attachments);
  83
  84         return new_msg;
  85 }
  86
  87
  88 /* FIXME: this func copy from modest-mail-operation: refactor */
  89 static TnyMimePart *
  90 add_body_part (TnyMsg *msg,
  91                const gchar *body,
  92                const gchar *content_type,
  93                gboolean has_attachments)
  94 {
  95         TnyMimePart *text_body_part = NULL;
  96         TnyStream *text_body_stream;
  97
  98         /* Create the stream */
  99         text_body_stream = TNY_STREAM (tny_camel_stream_new
 100                                        (camel_stream_mem_new_with_buffer
 101                                         (body, strlen(body))));
 102
 103         /* Create body part if needed */
 104         if (has_attachments)
 105                 text_body_part = tny_platform_factory_new_mime_part
 106                         (modest_runtime_get_platform_factory ());
 107         else
 108                 text_body_part = TNY_MIME_PART(msg);
 109
 110         /* Construct MIME part */
 111         tny_stream_reset (text_body_stream);
 112         tny_mime_part_construct_from_stream (text_body_part,
 113                                              text_body_stream,
 114                                              content_type);
 115         tny_stream_reset (text_body_stream);
 116
 117         /* Add part if needed */
 118         if (has_attachments) {
 119                 tny_mime_part_add_part (TNY_MIME_PART (msg), text_body_part);
 120                 g_object_unref (G_OBJECT(text_body_part));
 121         }
 122
 123         /* Clean */
 124         g_object_unref (text_body_stream);
 125
 126         return text_body_part;
 127 }
 128
 129 static void
 130 add_attachments (TnyMsg *msg, GList *attachments_list)
 131 {
 132         GList *pos;
 133         TnyMimePart *attachment_part, *old_attachment;
 134         const gchar *attachment_content_type;
 135         const gchar *attachment_filename;
 136         TnyStream *attachment_stream;
 137
 138         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 139
 140                 old_attachment = pos->data;
 141                 attachment_filename = tny_mime_part_get_filename (old_attachment);
 142                 attachment_stream = tny_mime_part_get_stream (old_attachment);
 143                 attachment_part = tny_platform_factory_new_mime_part (
 144                         modest_runtime_get_platform_factory());
 145
 146                 attachment_content_type = tny_mime_part_get_content_type (old_attachment);
 147
 148                 tny_mime_part_construct_from_stream (attachment_part,
 149                                                      attachment_stream,
 150                                                      attachment_content_type);
 151                 tny_stream_reset (attachment_stream);
 152
 153                 tny_mime_part_set_filename (attachment_part, attachment_filename);
 154
 155                 tny_mime_part_add_part (TNY_MIME_PART (msg), attachment_part);
 156 /*              g_object_unref (attachment_part); */
 157         }
 158 }
 159
 160
 161 gchar *
 162 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html)
 163 {
 164         TnyStream *stream;
 165         TnyMimePart *body;
 166         GtkTextBuffer *buf;
 167         GtkTextIter start, end;
 168         gchar *to_quote;
 169
 170         body = modest_tny_msg_find_body_part(msg, want_html);
 171         if (!body)
 172                 return NULL;
 173
 174         buf = gtk_text_buffer_new (NULL);
 175         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 176         tny_stream_reset (stream);
 177         tny_mime_part_decode_to_stream (body, stream);
 178         tny_stream_reset (stream);
 179
 180         g_object_unref (G_OBJECT(stream));
 181         g_object_unref (G_OBJECT(body));
 182
 183         gtk_text_buffer_get_bounds (buf, &start, &end);
 184         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 185         g_object_unref (buf);
 186
 187         return to_quote;
 188 }
 189
 190
 191 TnyMimePart*
 192 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 193 {
 194         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 195         TnyMimePart *part = NULL;
 196         TnyList *parts;
 197         TnyIterator *iter;
 198
 199         if (!msg)
 200                 return NULL;
 201
 202         parts = TNY_LIST (tny_simple_list_new());
 203         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 204
 205         iter  = tny_list_create_iterator(parts);
 206
 207         /* no parts? assume it's single-part message */
 208         if (tny_iterator_is_done(iter))
 209                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 210         else {
 211                 gchar *content_type = NULL;
 212                 do {
 213                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 214
 215                         /* we need to strdown the content type, because
 216                          * tny_mime_part_has_content_type does not do it...
 217                          */
 218                         content_type = g_ascii_strdown
 219                                 (tny_mime_part_get_content_type (part), -1);
 220
 221                         if (g_str_has_prefix (content_type, mime_type) &&
 222                             !tny_mime_part_is_attachment (part))
 223                                 break;
 224
 225                         if (g_str_has_prefix(content_type, "multipart")) {
 226                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 227                                 if (part)
 228                                         break;
 229                         }
 230                         if (part)
 231                                 g_object_unref (G_OBJECT(part));
 232
 233                         part = NULL;
 234
 235                         g_free (content_type);
 236                         content_type = NULL;
 237
 238                         tny_iterator_next (iter);
 239
 240                 } while (!tny_iterator_is_done(iter));
 241                 g_free (content_type);
 242         }
 243
 244         g_object_unref (G_OBJECT(iter));
 245         g_object_unref (G_OBJECT(parts));
 246
 247         /* if were trying to find an HTML part and couldn't find it,
 248          * try to find a text/plain part instead
 249          */
 250         if (!part && want_html)
 251                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 252         else
 253                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 254                               * part */
 255 }
 256
 257
 258 TnyMimePart*
 259 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 260 {
 261         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 262                                                              want_html);
 263 }
 264
 265
 266
 267 static gboolean
 268 is_ascii(const gchar *s)
 269 {
 270         if (!s)
 271                 return TRUE;
 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 }