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 <modest-defs.h>
  37 #include "modest-formatter.h"
  38 #include <tny-camel-mem-stream.h>
  39 #include <tny-camel-mime-part.h>
  40 #include <glib/gprintf.h>
  41 #include <modest-tny-folder.h>
  42 #include "modest-tny-mime-part.h"
  43 #include <modest-error.h>
  44
  45
  46 #ifdef HAVE_CONFIG_H
  47 #include <config.h>
  48 #endif /*HAVE_CONFIG_H */
  49
  50 #include <modest-tny-msg.h>
  51 #include "modest-text-utils.h"
  52
  53 static TnyMimePart * add_body_part (TnyMsg *msg, const gchar *body,
  54                                     const gchar *content_type);
  55 static TnyMimePart * add_html_body_part (TnyMsg *msg, const gchar *body);
  56 static gint add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline, GError **err);
  57 static void add_images (TnyMsg *msg, GList *attachments_list, GError **err);
  58 static char * get_content_type(const gchar *s);
  59 static gboolean is_ascii(const gchar *s);
  60
  61
  62 TnyMsg*
  63 modest_tny_msg_new (const gchar* mailto, const gchar* from, const gchar *cc,
  64                     const gchar *bcc, const gchar* subject,
  65                     const gchar *references, const gchar *in_reply_to,
  66                     const gchar *body,
  67                     GList *attachments, gint *attached, GError **err)
  68 {
  69         TnyMsg *new_msg;
  70         TnyHeader *header;
  71         gchar *content_type;
  72         gint tmp_attached = 0;
  73
  74         /* Create new msg */
  75         new_msg = modest_formatter_create_message (NULL, TRUE, (attachments != NULL), FALSE);
  76         header  = tny_msg_get_header (new_msg);
  77
  78         if ((from != NULL) && (strlen(from) > 0)) {
  79                 tny_header_set_from (TNY_HEADER (header), from);
  80                 tny_header_set_replyto (TNY_HEADER (header), from);
  81         }
  82         if ((mailto != NULL) && (strlen(mailto) > 0)) {
  83                 gchar *removed_to = modest_text_utils_remove_duplicate_addresses (mailto);
  84                 tny_header_set_to (TNY_HEADER (header), removed_to);
  85                 g_free (removed_to);
  86         }
  87         if ((cc != NULL) && (strlen(cc) > 0))
  88                 tny_header_set_cc (TNY_HEADER (header), cc);
  89         if ((bcc != NULL) && (strlen(bcc) > 0))
  90                 tny_header_set_bcc (TNY_HEADER (header), bcc);
  91
  92         if ((subject != NULL) && (strlen(subject) > 0))
  93                 tny_header_set_subject (TNY_HEADER (header), subject);
  94
  95         content_type = get_content_type(body);
  96
  97         /* set modest as the X-Mailer
  98          * we could this in the platform factory, but then the header
  99          * would show up before all the others.
 100          */
 101         tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
 102                                        VERSION);
 103
 104         if (references)
 105                 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "References", references);
 106
 107         if (in_reply_to)
 108                 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "In-Reply-To", in_reply_to);
 109
 110         /* Add the body of the new mail */
 111         /* This is needed even if body is NULL or empty. */
 112         add_body_part (new_msg, body, content_type);
 113         g_free (content_type);
 114
 115         /* Add attachments */
 116         if (attachments)
 117                 tmp_attached = add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE, err);
 118         if (attached)
 119                 *attached = tmp_attached;
 120         if (header)
 121                 g_object_unref(header);
 122
 123         return new_msg;
 124 }
 125
 126 TnyMsg*
 127 modest_tny_msg_new_html_plain (const gchar* mailto, const gchar* from, const gchar *cc,
 128                                const gchar *bcc, const gchar* subject,
 129                                const gchar *references, const gchar *in_reply_to,
 130                                const gchar *html_body, const gchar *plain_body,
 131                                GList *attachments, GList *images, gint *attached, GError **err)
 132 {
 133         TnyMsg *new_msg;
 134         TnyHeader *header;
 135         gchar *content_type;
 136         gint tmp_attached;
 137
 138         /* Create new msg */
 139         new_msg = modest_formatter_create_message (NULL, FALSE, (attachments != NULL), (images != NULL));
 140         header  = tny_msg_get_header (new_msg);
 141
 142         if ((from != NULL) && (strlen(from) > 0)) {
 143                 tny_header_set_from (TNY_HEADER (header), from);
 144                 tny_header_set_replyto (TNY_HEADER (header), from);
 145         }
 146         if ((mailto != NULL) && (strlen(mailto) > 0))
 147                 tny_header_set_to (TNY_HEADER (header), mailto);
 148         if ((cc != NULL) && (strlen(cc) > 0))
 149                 tny_header_set_cc (TNY_HEADER (header), cc);
 150         if ((bcc != NULL) && (strlen(bcc) > 0))
 151                 tny_header_set_bcc (TNY_HEADER (header), bcc);
 152
 153         if ((subject != NULL) && (strlen(subject) > 0))
 154                 tny_header_set_subject (TNY_HEADER (header), subject);
 155
 156         content_type = get_content_type(plain_body);
 157
 158         /* set modest as the X-Mailer
 159          * we could this in the platform factory, but then the header
 160          * would show up before all the others.
 161          */
 162         tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
 163                                        VERSION);
 164
 165         if (references)
 166                 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "References", references);
 167
 168         if (in_reply_to)
 169                 tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "In-Reply-To", in_reply_to);
 170
 171         /* Add the body of the new mail */
 172         add_body_part (new_msg, plain_body, content_type);
 173         add_html_body_part (new_msg, html_body);
 174         g_free (content_type);
 175
 176         /* Add attachments */
 177         tmp_attached = add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE, err);
 178         if (attached)
 179                 *attached = tmp_attached;
 180         add_images (new_msg, images, err);
 181         if (header)
 182                 g_object_unref(header);
 183
 184         return new_msg;
 185 }
 186
 187
 188 /* FIXME: this func copy from modest-mail-operation: refactor */
 189 static TnyMimePart *
 190 add_body_part (TnyMsg *msg,
 191                const gchar *body,
 192                const gchar *content_type)
 193 {
 194         TnyMimePart *text_body_part = NULL;
 195         TnyStream *text_body_stream;
 196
 197         /* Create the stream */
 198         text_body_stream = TNY_STREAM (tny_camel_mem_stream_new_with_buffer
 199                                         (body, (body ? strlen(body) : 0)));
 200
 201         text_body_part = modest_formatter_create_body_part (NULL, msg);
 202
 203         /* Construct MIME part */
 204         tny_stream_reset (text_body_stream);
 205         tny_mime_part_construct (text_body_part,
 206                                  text_body_stream,
 207                                  content_type, "7bit");
 208         tny_stream_reset (text_body_stream);
 209
 210         g_object_unref (G_OBJECT(text_body_part));
 211
 212         /* Clean */
 213         g_object_unref (text_body_stream);
 214
 215         return text_body_part;
 216 }
 217
 218 static TnyMimePart *
 219 add_html_body_part (TnyMsg *msg,
 220                     const gchar *body)
 221 {
 222         TnyMimePart *html_body_part = NULL;
 223         TnyStream *html_body_stream;
 224
 225         /* Create the stream */
 226         html_body_stream = TNY_STREAM (tny_camel_mem_stream_new_with_buffer
 227                                         (body, strlen(body)));
 228
 229         /* Create body part if needed */
 230         html_body_part = modest_formatter_create_body_part (NULL, msg);
 231
 232         /* Construct MIME part */
 233         tny_stream_reset (html_body_stream);
 234         tny_mime_part_construct (html_body_part,
 235                                  html_body_stream,
 236                                  "text/html; charset=utf-8",
 237                                  "7bit"); /* Sometimes it might be needed
 238                                              to make this one a 8bit! */
 239         tny_stream_reset (html_body_stream);
 240
 241         g_object_unref (G_OBJECT(html_body_part));
 242
 243         /* Clean */
 244         g_object_unref (html_body_stream);
 245
 246         return html_body_part;
 247 }
 248
 249 static TnyMimePart *
 250 copy_mime_part (TnyMimePart *part, GError **err)
 251 {
 252         TnyMimePart *result = NULL;
 253         const gchar *attachment_content_type;
 254         const gchar *attachment_filename;
 255         const gchar *attachment_cid;
 256         TnyList *parts;
 257         TnyIterator *iterator;
 258         TnyStream *attachment_stream;
 259         const gchar *enc;
 260         gint ret;
 261
 262         if (TNY_IS_MSG (part)) {
 263                 g_object_ref (part);
 264                 return part;
 265         }
 266
 267         result = tny_platform_factory_new_mime_part (
 268                 modest_runtime_get_platform_factory());
 269
 270         attachment_content_type = tny_mime_part_get_content_type (part);
 271
 272         /* get mime part headers */
 273         attachment_filename = tny_mime_part_get_filename (part);
 274         attachment_cid = tny_mime_part_get_content_id (part);
 275
 276         /* fill the stream */
 277         attachment_stream = tny_mime_part_get_decoded_stream (part);
 278         enc = tny_mime_part_get_transfer_encoding (part);
 279         if (attachment_stream == NULL) {
 280                 if (err != NULL && *err == NULL)
 281                         g_set_error (err, MODEST_MAIL_OPERATION_ERROR, MODEST_MAIL_OPERATION_ERROR_FILE_IO, _("TODO: couldn't retrieve attachment"));
 282                 g_object_unref (result);
 283                 return NULL;
 284         } else {
 285                 ret = tny_stream_reset (attachment_stream);
 286                 ret = tny_mime_part_construct (result,
 287                                                attachment_stream,
 288                                                attachment_content_type,
 289                                                enc);
 290                 ret = tny_stream_reset (attachment_stream);
 291         }
 292
 293         /* set other mime part fields */
 294         tny_mime_part_set_filename (result, attachment_filename);
 295         tny_mime_part_set_content_id (result, attachment_cid);
 296
 297         /* copy subparts */
 298         parts = tny_simple_list_new ();
 299         tny_mime_part_get_parts (part, parts);
 300         iterator = tny_list_create_iterator (parts);
 301         while (!tny_iterator_is_done (iterator)) {
 302                 TnyMimePart *subpart = TNY_MIME_PART (tny_iterator_get_current (iterator));
 303                 if (subpart) {
 304                         const gchar *subpart_cid;
 305                         TnyMimePart *subpart_copy = copy_mime_part (subpart, err);
 306                         if (subpart_copy != NULL) {
 307                                 subpart_cid = tny_mime_part_get_content_id (subpart);
 308                                 tny_mime_part_add_part (result, subpart_copy);
 309                                 if (subpart_cid)
 310                                         tny_mime_part_set_content_id (result, subpart_cid);
 311                                 g_object_unref (subpart_copy);
 312                         }
 313                         g_object_unref (subpart);
 314                 }
 315
 316                 tny_iterator_next (iterator);
 317         }
 318         g_object_unref (iterator);
 319         g_object_unref (parts);
 320         g_object_unref (attachment_stream);
 321
 322         return result;
 323 }
 324
 325 static gint
 326 add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline, GError **err)
 327 {
 328         GList *pos;
 329         TnyMimePart *attachment_part, *old_attachment;
 330         gint ret;
 331         gint attached = 0;
 332
 333         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 334
 335                 old_attachment = pos->data;
 336                 if (!tny_mime_part_is_purged (old_attachment)) {
 337                         const gchar *old_cid;
 338                         old_cid = tny_mime_part_get_content_id (old_attachment);
 339                         attachment_part = copy_mime_part (old_attachment, err);
 340                         if (attachment_part != NULL) {
 341                                 if (add_inline) {
 342                                         tny_mime_part_set_header_pair (attachment_part, "Content-Disposition",
 343                                                                        "inline");
 344                                 } else {
 345                                         const gchar *filename;
 346                                         filename = tny_mime_part_get_filename (old_attachment);
 347                                         if (filename)
 348                                                 tny_mime_part_set_filename (attachment_part, filename);
 349                                         else
 350                                                 tny_mime_part_set_header_pair (attachment_part, "Content-Disposition",
 351                                                                                "attachment");
 352                                 }
 353                                 tny_mime_part_set_transfer_encoding (TNY_MIME_PART (attachment_part), "base64");
 354                                 ret = tny_mime_part_add_part (TNY_MIME_PART (part), attachment_part);
 355                                 attached++;
 356                                 if (old_cid)
 357                                         tny_mime_part_set_content_id (attachment_part, old_cid);
 358                                 g_object_unref (attachment_part);
 359                         }
 360                 }
 361         }
 362         return attached;
 363 }
 364
 365 static void
 366 add_images (TnyMsg *msg, GList *images_list, GError **err)
 367 {
 368         TnyMimePart *related_part = NULL;
 369         const gchar *content_type;
 370
 371         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 372
 373         if ((content_type != NULL) && !strcasecmp (content_type, "multipart/related")) {
 374                 related_part = g_object_ref (msg);
 375         } else if ((content_type != NULL) && !strcasecmp (content_type, "multipart/mixed")) {
 376                 TnyList *parts = TNY_LIST (tny_simple_list_new ());
 377                 TnyIterator *iter = NULL;
 378                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 379                 iter = tny_list_create_iterator (parts);
 380
 381                 while (!tny_iterator_is_done (iter)) {
 382                         TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
 383                         if (part && !g_strcasecmp (tny_mime_part_get_content_type (part), "multipart/related")) {
 384                                 related_part = part;
 385                                 break;
 386                         }
 387                         if (part)
 388                                 g_object_unref (part);
 389                         tny_iterator_next (iter);
 390                 }
 391                 g_object_unref (iter);
 392                 g_object_unref (parts);
 393         }
 394
 395         if (related_part != NULL) {
 396                 /* TODO: attach images in their proper place */
 397                 add_attachments (related_part, images_list, TRUE, err);
 398                 g_object_unref (related_part);
 399         }
 400 }
 401
 402
 403 gchar *
 404 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html, gboolean *is_html)
 405 {
 406         TnyStream *stream;
 407         TnyMimePart *body;
 408         GtkTextBuffer *buf;
 409         GtkTextIter start, end;
 410         gchar *to_quote;
 411         gboolean result_was_html = TRUE;
 412
 413         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 414
 415         body = modest_tny_msg_find_body_part(msg, want_html);
 416         if (!body)
 417                 return NULL;
 418
 419         buf = gtk_text_buffer_new (NULL);
 420         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 421         tny_stream_reset (stream);
 422         tny_mime_part_decode_to_stream (body, stream, NULL);
 423         tny_stream_reset (stream);
 424
 425         gtk_text_buffer_get_bounds (buf, &start, &end);
 426         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 427         if (tny_mime_part_content_type_is (body, "text/plain")) {
 428                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 429                 g_free (to_quote);
 430                 to_quote = to_quote_converted;
 431                 result_was_html = FALSE;
 432         }
 433
 434         g_object_unref (buf);
 435         g_object_unref (G_OBJECT(stream));
 436         g_object_unref (G_OBJECT(body));
 437
 438         if (is_html != NULL)
 439                 *is_html = result_was_html;
 440
 441         return to_quote;
 442 }
 443
 444
 445 static TnyMimePart*
 446 modest_tny_msg_find_body_part_in_alternative (TnyMimePart *msg, gboolean want_html)
 447 {
 448         TnyList *parts;
 449         TnyIterator *iter;
 450         TnyMimePart *part = NULL;
 451         TnyMimePart *first_part = NULL;
 452         const gchar *desired_mime_type = want_html ? "text/html" : "text/plain";
 453
 454         parts = TNY_LIST (tny_simple_list_new());
 455         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 456
 457         for (iter  = tny_list_create_iterator(parts);
 458              !tny_iterator_is_done (iter);
 459              tny_iterator_next (iter)) {
 460                 gchar *content_type;
 461                 gboolean is_body;
 462
 463                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
 464
 465                 if (first_part == NULL) {
 466                         g_object_ref (part);
 467                         first_part = part;
 468                 }
 469
 470                 is_body = FALSE;
 471                 content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 472                 is_body = g_str_has_prefix (content_type, desired_mime_type);
 473                 if (is_body)
 474                         break;
 475
 476                 g_object_unref (part);
 477                 part = NULL;
 478
 479         }
 480         g_object_unref (iter);
 481         g_object_unref (parts);
 482
 483         if (part == NULL) {
 484                 return first_part;
 485         } else {
 486                 if (first_part) g_object_unref (first_part);
 487                 return part;
 488         }
 489 }
 490
 491 TnyMimePart*
 492 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 493 {
 494         TnyMimePart *part = NULL;
 495         TnyList *parts = NULL;
 496         TnyIterator *iter = NULL;
 497         gchar *header_content_type;
 498         gchar *header_content_type_lower = NULL;
 499
 500         if (!msg)
 501                 return NULL;
 502
 503         /* If it's an application multipart, then we don't get into as we don't
 504          * support them (for example application/sml or wap messages */
 505         header_content_type = modest_tny_mime_part_get_header_value (msg, "Content-Type");
 506         if (header_content_type) {
 507                 header_content_type = g_strstrip (header_content_type);
 508                 header_content_type_lower = g_ascii_strdown (header_content_type, -1);
 509         }
 510         if (header_content_type_lower &&
 511             g_str_has_prefix (header_content_type_lower, "multipart/") &&
 512             !g_str_has_prefix (header_content_type_lower, "multipart/signed") &&
 513             strstr (header_content_type_lower, "application/")) {
 514                 g_free (header_content_type_lower);
 515                 g_free (header_content_type);
 516                 return NULL;
 517         }
 518         if (header_content_type_lower &&
 519             g_str_has_prefix (header_content_type_lower, "multipart/alternative")) {
 520                 g_free (header_content_type_lower);
 521                 g_free (header_content_type);
 522                 return modest_tny_msg_find_body_part_in_alternative (msg, want_html);
 523         }
 524         g_free (header_content_type_lower);
 525         g_free (header_content_type);
 526
 527         parts = TNY_LIST (tny_simple_list_new());
 528         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 529
 530         iter  = tny_list_create_iterator(parts);
 531
 532         /* no parts? assume it's single-part message */
 533         if (tny_iterator_is_done(iter)) {
 534                 gchar *content_type;
 535                 gboolean is_text_part;
 536                 g_object_unref (G_OBJECT(iter));
 537                 content_type = modest_tny_mime_part_get_content_type (msg);
 538                 if (content_type == NULL)
 539                         return NULL;
 540                 is_text_part =
 541                         g_str_has_prefix (content_type, "text/");
 542                 g_free (content_type);
 543                 /* if this part cannot be a supported body return NULL */
 544                 if (!is_text_part) {
 545                         return NULL;
 546                 } else {
 547                         return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 548                 }
 549         } else {
 550                 do {
 551                         gchar *tmp, *content_type = NULL;
 552                         gboolean has_content_disp_name = FALSE;
 553
 554                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 555
 556                         if (!part) {
 557                                 g_warning ("%s: not a valid mime part", __FUNCTION__);
 558                                 tny_iterator_next (iter);
 559                                 continue;
 560                         }
 561
 562                         /* it's a message --> ignore */
 563                         if (part && TNY_IS_MSG (part)) {
 564                                 g_object_unref (part);
 565                                 part = NULL;
 566                                 tny_iterator_next (iter);
 567                                 continue;
 568                         }
 569
 570                         /* we need to strdown the content type, because
 571                          * tny_mime_part_has_content_type does not do it...
 572                          */
 573                         content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 574
 575                         /* mime-parts with a content-disposition header (either 'inline' or 'attachment')
 576                          * and a 'name=' thingy cannot be body parts
 577                          */
 578
 579                         tmp = modest_tny_mime_part_get_header_value (part, "Content-Disposition");
 580                         if (tmp) {
 581                                 gchar *content_disp = g_ascii_strdown(tmp, -1);
 582                                 g_free (tmp);
 583                                 has_content_disp_name = g_strstr_len (content_disp, strlen(content_disp), "name=") != NULL;
 584                                 g_free (content_disp);
 585                         }
 586
 587                         if (g_str_has_prefix (content_type, "text/") &&
 588                             !has_content_disp_name &&
 589                             !modest_tny_mime_part_is_attachment_for_modest (part)) {
 590                                 /* we found the body. Doesn't have to be the desired mime part, first
 591                                    text/ part in a mixed is the body */
 592                                 g_free (content_type);
 593                                 break;
 594
 595                         } else if (g_str_has_prefix(content_type, "multipart/alternative")) {
 596
 597                                 /* multipart? recurse! */
 598                                 g_object_unref (part);
 599                                 g_free (content_type);
 600                                 part = modest_tny_msg_find_body_part_in_alternative (part, want_html);
 601                                 if (part)
 602                                         break;
 603
 604                         } else  if (g_str_has_prefix(content_type, "multipart")) {
 605
 606                                 /* multipart? recurse! */
 607                                 g_object_unref (part);
 608                                 g_free (content_type);
 609                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 610                                 if (part)
 611                                         break;
 612                         } else
 613                                 g_free (content_type);
 614
 615                         if (part) {
 616                                 g_object_unref (G_OBJECT(part));
 617                                 part = NULL;
 618                         }
 619
 620                         tny_iterator_next (iter);
 621
 622                 } while (!tny_iterator_is_done(iter));
 623         }
 624
 625         g_object_unref (G_OBJECT(iter));
 626         g_object_unref (G_OBJECT(parts));
 627
 628         return part; /* this maybe NULL, this is not an error; some message just don't have a body
 629                       * part */
 630 }
 631
 632
 633 TnyMimePart*
 634 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 635 {
 636         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 637
 638         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 639                                                              want_html);
 640 }
 641
 642
 643 #define MODEST_TNY_MSG_PARENT_UID "parent-uid"
 644
 645 static TnyMsg *
 646 create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
 647                            const gchar *signature, gboolean is_reply,
 648                            guint type /*ignored*/, GList *attachments)
 649 {
 650         TnyMsg *new_msg;
 651         TnyHeader *new_header;
 652         gchar *old_subject;
 653         gchar *new_subject;
 654         TnyMimePart *body = NULL;
 655         ModestFormatter *formatter;
 656         gchar *subject_prefix;
 657         gboolean no_text_part;
 658         gchar *parent_uid;
 659
 660         if (header)
 661                 g_object_ref (header);
 662         else
 663                 header = tny_msg_get_header (msg);
 664
 665         /* Get body from original msg. Always look for the text/plain
 666            part of the message to create the reply/forwarded mail */
 667         if (msg != NULL)
 668                 body   = modest_tny_msg_find_body_part (msg, FALSE);
 669
 670         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
 671                                   NULL))
 672                 formatter = modest_formatter_new ("text/html", signature);
 673         else
 674                 formatter = modest_formatter_new ("text/plain", signature);
 675
 676
 677         /* if we don't have a text-part */
 678         no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
 679
 680         /* when we're reply, include the text part if we have it, or nothing otherwise. */
 681         if (is_reply)
 682                 new_msg = modest_formatter_quote  (formatter, no_text_part ? NULL: body, header,
 683                                                     attachments);
 684         else {
 685                 new_msg = modest_formatter_attach (formatter, msg, header);
 686         }
 687
 688         g_object_unref (G_OBJECT(formatter));
 689         if (body)
 690                 g_object_unref (G_OBJECT(body));
 691
 692         /* Fill the header */
 693         new_header = tny_msg_get_header (new_msg);
 694         tny_header_set_from (new_header, from);
 695         tny_header_set_replyto (new_header, from);
 696
 697         /* Change the subject */
 698         if (is_reply)
 699                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 700         else
 701                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 702         old_subject = tny_header_dup_subject (header);
 703         new_subject =
 704                 (gchar *) modest_text_utils_derived_subject (old_subject,
 705                                                              subject_prefix);
 706         g_free (old_subject);
 707         g_free (subject_prefix);
 708         tny_header_set_subject (new_header, (const gchar *) new_subject);
 709         g_free (new_subject);
 710
 711         /* get the parent uid, and set it as a gobject property on the new msg */
 712         parent_uid = modest_tny_folder_get_header_unique_id (header);
 713         g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
 714                                 parent_uid, g_free);
 715
 716         /* set modest as the X-Mailer
 717          * we could this in the platform factory, but then the header
 718          * would show up before all the others.
 719          */
 720         tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
 721                                        VERSION);
 722
 723         /* Clean */
 724         g_object_unref (G_OBJECT (new_header));
 725         g_object_unref (G_OBJECT (header));
 726         /* ugly to unref it here instead of in the calling func */
 727
 728         if (!is_reply & !no_text_part) {
 729                 add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE, NULL);
 730         }
 731
 732         return new_msg;
 733 }
 734
 735 const gchar*
 736 modest_tny_msg_get_parent_uid (TnyMsg *msg)
 737 {
 738         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 739
 740         return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
 741 }
 742
 743 static gchar *get_signed_protocol (TnyMimePart *part)
 744 {
 745         TnyList *header_pairs;
 746         TnyIterator *iterator;
 747         gchar *result = NULL;
 748
 749         header_pairs = TNY_LIST (tny_simple_list_new ());
 750         tny_mime_part_get_header_pairs (part, header_pairs);
 751         iterator = tny_list_create_iterator (header_pairs);
 752
 753         while (!result && !tny_iterator_is_done (iterator)) {
 754                 TnyPair *pair;
 755                 const gchar *name;
 756
 757                 pair = TNY_PAIR (tny_iterator_get_current (iterator));
 758                 name = tny_pair_get_name (pair);
 759                 if (name && !g_ascii_strcasecmp (name, "Content-Type")) {
 760                         const gchar *s;
 761                         s = tny_pair_get_value (pair);
 762                         if (s) {
 763                                 s = strstr (s, "protocol=");
 764                                 if (s) {
 765                                         const gchar *t;
 766                                         s += 9;
 767                                         if (*s == '\"') {
 768                                                 s++;
 769                                                 t = strstr (s, "\"");
 770                                         } else {
 771                                                 t = strstr (s, ";");
 772                                         }
 773                                         result = g_strndup (s, t - s);
 774                                 }
 775                         }
 776                 }
 777
 778                 g_object_unref (pair);
 779                 tny_iterator_next (iterator);
 780         }
 781
 782         g_object_unref (iterator);
 783         g_object_unref (header_pairs);
 784
 785         return result;
 786 }
 787
 788 TnyMimePart *
 789 modest_tny_msg_get_attachments_parent (TnyMsg *msg)
 790 {
 791         TnyMimePart *result;
 792         const gchar *content_type;
 793
 794         result = NULL;
 795
 796         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 797         if (content_type && !strcmp (content_type, "multipart/signed")) {
 798                 TnyList *msg_children;
 799                 TnyIterator *iterator;
 800                 gchar *signed_protocol;
 801
 802                 msg_children = TNY_LIST (tny_simple_list_new ());
 803                 tny_mime_part_get_parts (TNY_MIME_PART (msg), msg_children);
 804
 805                 iterator = tny_list_create_iterator (msg_children);
 806                 signed_protocol = get_signed_protocol (TNY_MIME_PART (msg));
 807
 808                 while (!result && !tny_iterator_is_done (iterator)) {
 809                         TnyMimePart *part;
 810
 811                         part = TNY_MIME_PART (tny_iterator_get_current (iterator));
 812                         if (signed_protocol) {
 813                                 const gchar *part_content_type;
 814
 815                                 part_content_type = tny_mime_part_get_content_type (part);
 816                                 if (part_content_type && g_ascii_strcasecmp (part_content_type, signed_protocol)) {
 817                                         result = g_object_ref (part);
 818                                 }
 819                         } else {
 820                                 result = g_object_ref (part);
 821                         }
 822
 823                         g_object_unref (part);
 824                         tny_iterator_next (iterator);
 825                 }
 826
 827                 g_object_unref (iterator);
 828                 g_free (signed_protocol);
 829                 g_object_unref (msg_children);
 830         }
 831         if (result == NULL) {
 832                 result = g_object_ref (msg);
 833         }
 834
 835         return result;
 836 }
 837
 838
 839
 840 static void
 841 add_if_attachment (gpointer data, gpointer user_data)
 842 {
 843         TnyMimePart *part;
 844         GList **attachments_list;
 845
 846         part = TNY_MIME_PART (data);
 847         attachments_list = ((GList **) user_data);
 848
 849         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 850                 *attachments_list = g_list_prepend (*attachments_list, part);
 851                 g_object_ref (part);
 852         }
 853 }
 854
 855 TnyMsg*
 856 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 857                                    const gchar *from,
 858                                    const gchar *signature,
 859                                    ModestTnyMsgForwardType forward_type)
 860 {
 861         TnyMsg *new_msg;
 862         TnyList *parts = NULL;
 863         GList *attachments_list = NULL;
 864         TnyMimePart *part_to_check = NULL;
 865
 866         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 867
 868         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
 869
 870         /* Add attachments */
 871         parts = TNY_LIST (tny_simple_list_new());
 872         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
 873         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 874
 875         new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
 876                                              attachments_list);
 877
 878         /* Clean */
 879         if (attachments_list) {
 880                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 881                 g_list_free (attachments_list);
 882         }
 883         g_object_unref (G_OBJECT (parts));
 884         g_object_unref (part_to_check);
 885
 886         return new_msg;
 887 }
 888
 889
 890
 891 static gint
 892 count_addresses (const gchar* addresses)
 893 {
 894         gint count = 1;
 895
 896         if (!addresses)
 897                 return 0;
 898
 899         while (*addresses) {
 900                 if (*addresses == ',' || *addresses == ';')
 901                         ++count;
 902                 ++addresses;
 903         }
 904
 905         return count;
 906 }
 907
 908
 909 /* get the new To:, based on the old header,
 910  * result is newly allocated or NULL in case of error
 911  * */
 912 static gchar*
 913 get_new_to (TnyMsg *msg, TnyHeader *header, const gchar* from,
 914             ModestTnyMsgReplyMode reply_mode)
 915 {
 916         gchar* old_reply_to;
 917         gchar* old_from;
 918         gchar* new_to;
 919         gchar* tmp;
 920
 921         /* according to RFC2369 (http://www.faqs.org/rfcs/rfc2369.html), we
 922          * can identify Mailing-List posts by the List-Help header.
 923          * for mailing lists, both the Reply-To: and From: should be included
 924          * in the new To:; for now, we're ignoring List-Post
 925          */
 926         gchar* list_help = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
 927                                                                   "List-Help");
 928         gboolean is_mailing_list = (list_help != NULL);
 929         g_free (list_help);
 930
 931
 932         /* reply to sender, use ReplyTo or From */
 933         old_reply_to = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
 934                                                               "Reply-To");
 935         old_from     = tny_header_dup_from (header);
 936
 937         if (!old_from && !old_reply_to) {
 938                 g_debug ("%s: failed to get either Reply-To: or From: from header",
 939                            __FUNCTION__);
 940                 return NULL;
 941         }
 942
 943         /* for mailing lists, use both Reply-To and From if we did a
 944          * 'Reply All:'
 945          * */
 946         if (is_mailing_list && reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL &&
 947             old_reply_to && old_from && strcmp (old_from, old_reply_to) != 0)
 948                 new_to = g_strjoin (",", old_reply_to, old_from, NULL);
 949         else
 950                 /* otherwise use either Reply-To: (preferred) or From: */
 951                 new_to = g_strdup (old_reply_to ? old_reply_to : old_from);
 952         g_free (old_from);
 953         g_free (old_reply_to);
 954
 955         /* in case of ReplyAll, we need to add the Recipients in the old To: */
 956         if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
 957                 gchar *old_to = tny_header_dup_to (header);
 958                 if (!old_to)
 959                         g_debug ("%s: no To: address found in source mail",
 960                                    __FUNCTION__);
 961                 else {
 962                         /* append the old To: */
 963                         gchar *tmp = g_strjoin (",", new_to, old_to, NULL);
 964                         g_free (new_to);
 965                         new_to = tmp;
 966                         g_free (old_to);
 967                 }
 968
 969                 /* remove duplicate entries */
 970                 gchar *tmp = modest_text_utils_remove_duplicate_addresses (new_to);
 971                 g_free (new_to);
 972                 new_to = tmp;
 973
 974                 /* now, strip me (the new From:) from the new_to, but only if
 975                  * there are >1 addresses there */
 976                 if (count_addresses (new_to) > 1) {
 977                         gchar *tmp = modest_text_utils_remove_address (new_to, from);
 978                         g_free (new_to);
 979                         new_to = tmp;
 980                 }
 981         }
 982
 983         tmp = modest_text_utils_simplify_recipients (new_to);
 984         g_free (new_to);
 985         new_to = tmp;
 986
 987         return new_to;
 988 }
 989
 990
 991 /* get the new Cc:, based on the old header,
 992  * result is newly allocated or NULL in case of error */
 993 static gchar*
 994 get_new_cc (TnyHeader *header, const gchar* from)
 995 {
 996         gchar *old_cc, *result, *dup;
 997
 998         old_cc = tny_header_dup_cc (header);
 999         if (!old_cc)
1000                 return NULL;
1001
1002         /* remove me (the new From:) from the Cc: list */
1003         dup =  modest_text_utils_remove_address (old_cc, from);
1004         result = modest_text_utils_remove_duplicate_addresses (dup);
1005         g_free (dup);
1006         g_free (old_cc);
1007         return result;
1008 }
1009
1010 void
1011 modest_tny_msg_get_references (TnyMsg *msg, gchar **message_id, gchar **references, gchar **in_reply_to)
1012 {
1013         TnyList *headers;
1014         TnyIterator *iterator;
1015         gchar *l_message_id;
1016         gchar *l_references;
1017         gchar *l_in_reply_to;
1018
1019         g_return_if_fail (TNY_IS_MSG (msg));
1020
1021         l_message_id = NULL;
1022         l_references = NULL;
1023         l_in_reply_to = NULL;
1024
1025         headers = TNY_LIST (tny_simple_list_new ());
1026         tny_mime_part_get_header_pairs (TNY_MIME_PART (msg), headers);
1027
1028         iterator = tny_list_create_iterator (headers);
1029         while (!tny_iterator_is_done (iterator)) {
1030                 TnyPair *pair;
1031                 const gchar *name;
1032
1033                 pair = TNY_PAIR (tny_iterator_get_current (iterator));
1034                 name = tny_pair_get_name (pair);
1035                 if (!g_strcasecmp (name, "References")) {
1036                         if (l_references) g_free (l_references);
1037                         l_references = g_strdup (tny_pair_get_value (pair));
1038                 } else if (!g_strcasecmp (name, "In-Reply-To")) {
1039                         if (l_in_reply_to) g_free (l_in_reply_to);
1040                         l_in_reply_to = g_strdup (tny_pair_get_value (pair));
1041                 } else if (!g_strcasecmp (name, "Message-ID")) {
1042                         if (l_message_id) g_free (l_message_id);
1043                         l_message_id = g_strdup (tny_pair_get_value (pair));
1044                 }
1045
1046                 g_object_unref (pair);
1047                 tny_iterator_next (iterator);
1048         }
1049
1050         g_object_unref (iterator);
1051         g_object_unref (headers);
1052
1053         if (message_id) {
1054                 *message_id = l_message_id;
1055         } else {
1056                 g_free (l_message_id);
1057         }
1058
1059         if (in_reply_to) {
1060                 *in_reply_to = l_in_reply_to;
1061         } else {
1062                 g_free (l_in_reply_to);
1063         }
1064
1065         if (references) {
1066                 *references = l_references;
1067         } else {
1068                 g_free (l_references);
1069         }
1070 }
1071
1072 static void
1073 set_references (TnyMsg *reply_msg, TnyMsg *original_msg)
1074 {
1075         gchar *orig_references, *orig_in_reply_to, *orig_message_id;
1076         gchar *references, *in_reply_to;
1077
1078         modest_tny_msg_get_references (original_msg, &orig_message_id, &orig_references, &orig_in_reply_to);
1079
1080         references = NULL;
1081         in_reply_to = NULL;
1082
1083         if (orig_message_id)
1084                 in_reply_to = g_strdup (orig_message_id);
1085
1086         if (orig_references) {
1087                 if (orig_message_id)
1088                         references = g_strconcat (orig_references, "\n        ", orig_message_id, NULL);
1089                 else
1090                         references = g_strdup (orig_references);
1091
1092         } else if (orig_in_reply_to) {
1093                 if (orig_message_id)
1094                         references = g_strconcat (orig_in_reply_to, "\n        ", orig_message_id, NULL);
1095                 else
1096                         references = g_strdup (orig_in_reply_to);
1097         } else if (orig_message_id) {
1098                 references = g_strdup (orig_message_id);
1099         }
1100
1101         g_free (orig_references);
1102         g_free (orig_in_reply_to);
1103         g_free (orig_message_id);
1104
1105         if (in_reply_to) {
1106                 tny_mime_part_set_header_pair (TNY_MIME_PART (reply_msg), "In-Reply-To", in_reply_to);
1107         }
1108         if (references) {
1109                 tny_mime_part_set_header_pair (TNY_MIME_PART (reply_msg), "References", references);
1110         }
1111 }
1112
1113 TnyMsg*
1114 modest_tny_msg_create_reply_msg (TnyMsg *msg,
1115                                  TnyHeader *header,
1116                                  const gchar *from,
1117                                  const gchar *signature,
1118                                  ModestTnyMsgReplyType reply_type,
1119                                  ModestTnyMsgReplyMode reply_mode)
1120 {
1121         TnyMsg *new_msg = NULL;
1122         TnyHeader *new_header;
1123         gchar *new_to = NULL;
1124         TnyList *parts = NULL;
1125         GList *attachments_list = NULL;
1126         TnyMimePart *part_to_check = NULL;
1127
1128         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
1129
1130         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
1131
1132         parts = TNY_LIST (tny_simple_list_new());
1133         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
1134         tny_list_foreach (parts, add_if_attachment, &attachments_list);
1135
1136         new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
1137                                              attachments_list);
1138
1139         set_references (new_msg, msg);
1140         if (attachments_list != NULL) {
1141                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
1142                 g_list_free (attachments_list);
1143         }
1144         g_object_unref (parts);
1145
1146         /* Fill the header */
1147         if (header)
1148                 g_object_ref (header);
1149         else
1150                 header = tny_msg_get_header (msg);
1151
1152
1153         new_header = tny_msg_get_header(new_msg);
1154         new_to = get_new_to (msg, header, from, reply_mode);
1155         if (!new_to)
1156                 g_debug ("%s: failed to get new To:", __FUNCTION__);
1157         else {
1158                 tny_header_set_to (new_header, new_to);
1159                 g_free (new_to);
1160         }
1161
1162         if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
1163                 gchar *new_cc = get_new_cc (header, from);
1164                 if (new_cc) {
1165                         tny_header_set_cc (new_header, new_cc);
1166                         g_free (new_cc);
1167                 }
1168         }
1169
1170         /* Clean */
1171         g_object_unref (G_OBJECT (new_header));
1172         g_object_unref (G_OBJECT (header));
1173         g_object_unref (G_OBJECT (part_to_check));
1174
1175         return new_msg;
1176 }
1177
1178
1179 static gboolean
1180 is_ascii(const gchar *s)
1181 {
1182         if (!s)
1183                 return TRUE;
1184         while (s[0]) {
1185                 if (s[0] & 128 || s[0] < 32)
1186                         return FALSE;
1187                 s++;
1188         }
1189         return TRUE;
1190 }
1191
1192 static char *
1193 get_content_type(const gchar *s)
1194 {
1195         GString *type;
1196
1197         type = g_string_new("text/plain");
1198         if (!is_ascii(s)) {
1199                 if (g_utf8_validate(s, -1, NULL)) {
1200                         g_string_append(type, "; charset=\"utf-8\"");
1201                 } else {
1202                         /* it should be impossible to reach this, but better safe than sorry */
1203                         g_debug("invalid utf8 in message");
1204                         g_string_append(type, "; charset=\"latin1\"");
1205                 }
1206         }
1207         return g_string_free(type, FALSE);
1208 }
1209
1210 guint64
1211 modest_tny_msg_estimate_size (const gchar *plain_body, const gchar *html_body,
1212                               guint64 parts_count,
1213                               guint64 parts_size)
1214 {
1215         guint64 result;
1216
1217         /* estimation of headers size */
1218         result = 1024;
1219
1220         /* We add a 20% of size due to the increase in 7bit encoding */
1221         if (plain_body) {
1222                 result += strlen (plain_body) * 120 / 100;
1223         }
1224         if (html_body) {
1225                 result += strlen (html_body) * 120 / 100;
1226         }
1227
1228         /* 256 bytes per additional part because of their headers */
1229         result += parts_count * 256;
1230
1231         /* 150% of increase per encoding */
1232         result += parts_size * 3 / 2;
1233
1234         return result;
1235 }
1236
1237 GSList *
1238 modest_tny_msg_header_get_all_recipients_list (TnyHeader *header)
1239 {
1240         GSList *recipients = NULL;
1241         gchar *from = NULL, *to = NULL, *cc = NULL, *bcc = NULL;
1242         gchar *tmp = NULL, *old_tmp = NULL;
1243
1244         if (header == NULL)
1245                 return NULL;
1246
1247         from = tny_header_dup_from (header);
1248         to = tny_header_dup_to (header);
1249         cc = tny_header_dup_cc (header);
1250         bcc = tny_header_dup_bcc (header);
1251
1252         recipients = NULL;
1253         if (from) {
1254                 tmp = g_strdup (from);
1255                 old_tmp = tmp;
1256                 g_free (from);
1257         }
1258         if (to) {
1259                 tmp = g_strjoin ("; ", old_tmp, to, NULL);
1260                 g_free (old_tmp);
1261                 old_tmp = tmp;
1262                 g_free (to);
1263         }
1264         if (cc) {
1265                 tmp = g_strjoin ("; ", old_tmp, cc, NULL);
1266                 g_free (old_tmp);
1267                 old_tmp = tmp;
1268                 g_free (cc);
1269         }
1270         if (bcc) {
1271                 tmp = g_strjoin ("; ", old_tmp, bcc, NULL);
1272                 g_free (old_tmp);
1273                 old_tmp = tmp;
1274                 g_free (bcc);
1275         }
1276
1277         old_tmp = modest_text_utils_remove_duplicate_addresses (tmp);
1278         recipients = modest_text_utils_split_addresses_list (old_tmp);
1279         g_free (tmp);
1280
1281         return recipients;
1282 }
1283
1284 GSList *
1285 modest_tny_msg_get_all_recipients_list (TnyMsg *msg)
1286 {
1287         TnyHeader *header = NULL;
1288         GSList *recipients = NULL;
1289
1290         if (msg == NULL)
1291                 return NULL;
1292
1293         header = tny_msg_get_header (msg);
1294         if (header == NULL)
1295                 return NULL;
1296
1297         recipients = modest_tny_msg_header_get_all_recipients_list (header);
1298         g_object_unref (header);
1299
1300         return recipients;
1301 }
1302