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                                 if (!TNY_IS_MSG (old_attachment))  {
 354                                         tny_mime_part_set_transfer_encoding (TNY_MIME_PART (attachment_part), "base64");
 355                                 }
 356                                 ret = tny_mime_part_add_part (TNY_MIME_PART (part), attachment_part);
 357                                 attached++;
 358                                 if (old_cid)
 359                                         tny_mime_part_set_content_id (attachment_part, old_cid);
 360                                 g_object_unref (attachment_part);
 361                         }
 362                 }
 363         }
 364         return attached;
 365 }
 366
 367 static void
 368 add_images (TnyMsg *msg, GList *images_list, GError **err)
 369 {
 370         TnyMimePart *related_part = NULL;
 371         const gchar *content_type;
 372
 373         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 374
 375         if ((content_type != NULL) && !strcasecmp (content_type, "multipart/related")) {
 376                 related_part = g_object_ref (msg);
 377         } else if ((content_type != NULL) && !strcasecmp (content_type, "multipart/mixed")) {
 378                 TnyList *parts = TNY_LIST (tny_simple_list_new ());
 379                 TnyIterator *iter = NULL;
 380                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 381                 iter = tny_list_create_iterator (parts);
 382
 383                 while (!tny_iterator_is_done (iter)) {
 384                         TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
 385                         if (part && !g_strcasecmp (tny_mime_part_get_content_type (part), "multipart/related")) {
 386                                 related_part = part;
 387                                 break;
 388                         }
 389                         if (part)
 390                                 g_object_unref (part);
 391                         tny_iterator_next (iter);
 392                 }
 393                 g_object_unref (iter);
 394                 g_object_unref (parts);
 395         }
 396
 397         if (related_part != NULL) {
 398                 /* TODO: attach images in their proper place */
 399                 add_attachments (related_part, images_list, TRUE, err);
 400                 g_object_unref (related_part);
 401         }
 402 }
 403
 404
 405 gchar *
 406 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html, gboolean *is_html)
 407 {
 408         TnyStream *stream;
 409         TnyMimePart *body;
 410         GtkTextBuffer *buf;
 411         GtkTextIter start, end;
 412         gchar *to_quote;
 413         gboolean result_was_html = TRUE;
 414
 415         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 416
 417         body = modest_tny_msg_find_body_part(msg, want_html);
 418         if (!body)
 419                 return NULL;
 420
 421         buf = gtk_text_buffer_new (NULL);
 422         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 423         tny_stream_reset (stream);
 424         tny_mime_part_decode_to_stream (body, stream, NULL);
 425         tny_stream_reset (stream);
 426
 427         gtk_text_buffer_get_bounds (buf, &start, &end);
 428         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 429         if (tny_mime_part_content_type_is (body, "text/plain")) {
 430                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 431                 g_free (to_quote);
 432                 to_quote = to_quote_converted;
 433                 result_was_html = FALSE;
 434         }
 435
 436         g_object_unref (buf);
 437         g_object_unref (G_OBJECT(stream));
 438         g_object_unref (G_OBJECT(body));
 439
 440         if (is_html != NULL)
 441                 *is_html = result_was_html;
 442
 443         return to_quote;
 444 }
 445
 446
 447 static TnyMimePart*
 448 modest_tny_msg_find_body_part_in_alternative (TnyMimePart *msg, gboolean want_html)
 449 {
 450         TnyList *parts;
 451         TnyIterator *iter;
 452         TnyMimePart *part = NULL;
 453         TnyMimePart *first_part = NULL;
 454         const gchar *desired_mime_type = want_html ? "text/html" : "text/plain";
 455
 456         parts = TNY_LIST (tny_simple_list_new());
 457         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 458
 459         for (iter  = tny_list_create_iterator(parts);
 460              !tny_iterator_is_done (iter);
 461              tny_iterator_next (iter)) {
 462                 gchar *content_type;
 463                 gboolean is_body;
 464
 465                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
 466
 467                 if (first_part == NULL) {
 468                         g_object_ref (part);
 469                         first_part = part;
 470                 }
 471
 472                 is_body = FALSE;
 473                 content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 474                 is_body = g_str_has_prefix (content_type, desired_mime_type);
 475                 if (is_body)
 476                         break;
 477
 478                 g_object_unref (part);
 479                 part = NULL;
 480
 481         }
 482         g_object_unref (iter);
 483         g_object_unref (parts);
 484
 485         if (part == NULL) {
 486                 return first_part;
 487         } else {
 488                 if (first_part) g_object_unref (first_part);
 489                 return part;
 490         }
 491 }
 492
 493 TnyMimePart*
 494 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 495 {
 496         TnyMimePart *part = NULL;
 497         TnyList *parts = NULL;
 498         TnyIterator *iter = NULL;
 499         gchar *header_content_type;
 500         gchar *header_content_type_lower = NULL;
 501
 502         if (!msg)
 503                 return NULL;
 504
 505         /* If it's an application multipart, then we don't get into as we don't
 506          * support them (for example application/sml or wap messages */
 507         header_content_type = modest_tny_mime_part_get_header_value (msg, "Content-Type");
 508         if (header_content_type) {
 509                 header_content_type = g_strstrip (header_content_type);
 510                 header_content_type_lower = g_ascii_strdown (header_content_type, -1);
 511         }
 512         if (header_content_type_lower &&
 513             g_str_has_prefix (header_content_type_lower, "multipart/") &&
 514             !g_str_has_prefix (header_content_type_lower, "multipart/signed") &&
 515             strstr (header_content_type_lower, "application/")) {
 516                 g_free (header_content_type_lower);
 517                 g_free (header_content_type);
 518                 return NULL;
 519         }
 520         if (header_content_type_lower &&
 521             g_str_has_prefix (header_content_type_lower, "multipart/alternative")) {
 522                 g_free (header_content_type_lower);
 523                 g_free (header_content_type);
 524                 return modest_tny_msg_find_body_part_in_alternative (msg, want_html);
 525         }
 526         g_free (header_content_type_lower);
 527         g_free (header_content_type);
 528
 529         parts = TNY_LIST (tny_simple_list_new());
 530         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 531
 532         iter  = tny_list_create_iterator(parts);
 533
 534         /* no parts? assume it's single-part message */
 535         if (tny_iterator_is_done(iter)) {
 536                 gchar *content_type;
 537                 gboolean is_text_part;
 538                 g_object_unref (G_OBJECT(iter));
 539                 content_type = modest_tny_mime_part_get_content_type (msg);
 540                 if (content_type == NULL)
 541                         return NULL;
 542                 is_text_part =
 543                         g_str_has_prefix (content_type, "text/");
 544                 g_free (content_type);
 545                 /* if this part cannot be a supported body return NULL */
 546                 if (!is_text_part) {
 547                         return NULL;
 548                 } else {
 549                         return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 550                 }
 551         } else {
 552                 do {
 553                         gchar *tmp, *content_type = NULL;
 554                         gboolean has_content_disp_name = FALSE;
 555
 556                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 557
 558                         if (!part) {
 559                                 g_warning ("%s: not a valid mime part", __FUNCTION__);
 560                                 tny_iterator_next (iter);
 561                                 continue;
 562                         }
 563
 564                         /* it's a message --> ignore */
 565                         if (part && TNY_IS_MSG (part)) {
 566                                 g_object_unref (part);
 567                                 part = NULL;
 568                                 tny_iterator_next (iter);
 569                                 continue;
 570                         }
 571
 572                         /* we need to strdown the content type, because
 573                          * tny_mime_part_has_content_type does not do it...
 574                          */
 575                         content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 576
 577                         /* mime-parts with a content-disposition header (either 'inline' or 'attachment')
 578                          * and a 'name=' thingy cannot be body parts
 579                          */
 580
 581                         tmp = modest_tny_mime_part_get_header_value (part, "Content-Disposition");
 582                         if (tmp) {
 583                                 gchar *content_disp = g_ascii_strdown(tmp, -1);
 584                                 g_free (tmp);
 585                                 has_content_disp_name = g_strstr_len (content_disp, strlen(content_disp), "name=") != NULL;
 586                                 g_free (content_disp);
 587                         }
 588
 589                         if (g_str_has_prefix (content_type, "text/") &&
 590                             !has_content_disp_name &&
 591                             !modest_tny_mime_part_is_attachment_for_modest (part)) {
 592                                 /* we found the body. Doesn't have to be the desired mime part, first
 593                                    text/ part in a mixed is the body */
 594                                 g_free (content_type);
 595                                 break;
 596
 597                         } else if (g_str_has_prefix(content_type, "multipart/alternative")) {
 598
 599                                 /* multipart? recurse! */
 600                                 g_object_unref (part);
 601                                 g_free (content_type);
 602                                 part = modest_tny_msg_find_body_part_in_alternative (part, want_html);
 603                                 if (part)
 604                                         break;
 605
 606                         } else  if (g_str_has_prefix(content_type, "multipart")) {
 607
 608                                 /* multipart? recurse! */
 609                                 g_object_unref (part);
 610                                 g_free (content_type);
 611                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 612                                 if (part)
 613                                         break;
 614                         } else
 615                                 g_free (content_type);
 616
 617                         if (part) {
 618                                 g_object_unref (G_OBJECT(part));
 619                                 part = NULL;
 620                         }
 621
 622                         tny_iterator_next (iter);
 623
 624                 } while (!tny_iterator_is_done(iter));
 625         }
 626
 627         g_object_unref (G_OBJECT(iter));
 628         g_object_unref (G_OBJECT(parts));
 629
 630         return part; /* this maybe NULL, this is not an error; some message just don't have a body
 631                       * part */
 632 }
 633
 634
 635 TnyMimePart*
 636 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 637 {
 638         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 639
 640         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 641                                                              want_html);
 642 }
 643
 644
 645 #define MODEST_TNY_MSG_PARENT_UID "parent-uid"
 646
 647 static TnyMsg *
 648 create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
 649                            const gchar *signature, gboolean is_reply,
 650                            guint type /*ignored*/, GList *attachments)
 651 {
 652         TnyMsg *new_msg;
 653         TnyHeader *new_header;
 654         gchar *old_subject;
 655         gchar *new_subject;
 656         TnyMimePart *body = NULL;
 657         TnyMimePart *html_body = NULL;
 658         ModestFormatter *formatter;
 659         gchar *subject_prefix;
 660         gboolean no_text_part;
 661         gchar *parent_uid;
 662         gboolean forward_as_attach = FALSE;
 663
 664         if (header)
 665                 g_object_ref (header);
 666         else
 667                 header = tny_msg_get_header (msg);
 668
 669         /* Get body from original msg. Always look for the text/plain
 670            part of the message to create the reply/forwarded mail */
 671         if (msg != NULL) {
 672                 body   = modest_tny_msg_find_body_part (msg, FALSE);
 673                 html_body = modest_tny_msg_find_body_part (msg, TRUE);
 674         }
 675
 676         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
 677                                   NULL))
 678                 formatter = modest_formatter_new ("text/html", signature);
 679         else
 680                 formatter = modest_formatter_new ("text/plain", signature);
 681
 682
 683         /* if we don't have a text-part */
 684         no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
 685
 686         /* when we're reply, include the text part if we have it, or nothing otherwise. */
 687         if (is_reply)
 688                 new_msg = modest_formatter_quote  (formatter, body, header,
 689                                                     attachments);
 690         else {
 691                 if (no_text_part || (html_body && (strcmp (tny_mime_part_get_content_type (html_body), "text/html")==0))) {
 692                         forward_as_attach = TRUE;
 693                         new_msg = modest_formatter_attach (formatter, msg, header);
 694                 } else {
 695                         forward_as_attach = FALSE;
 696                         new_msg = modest_formatter_inline  (formatter, body, header,
 697                                                             attachments);
 698                 }
 699         }
 700
 701         g_object_unref (G_OBJECT(formatter));
 702         if (body)
 703                 g_object_unref (G_OBJECT(body));
 704         if (html_body)
 705                 g_object_unref (G_OBJECT(html_body));
 706
 707         /* Fill the header */
 708         new_header = tny_msg_get_header (new_msg);
 709         tny_header_set_from (new_header, from);
 710         tny_header_set_replyto (new_header, from);
 711
 712         /* Change the subject */
 713         if (is_reply)
 714                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 715         else
 716                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 717         old_subject = tny_header_dup_subject (header);
 718         new_subject =
 719                 (gchar *) modest_text_utils_derived_subject (old_subject,
 720                                                              subject_prefix);
 721         g_free (old_subject);
 722         g_free (subject_prefix);
 723         tny_header_set_subject (new_header, (const gchar *) new_subject);
 724         g_free (new_subject);
 725
 726         /* get the parent uid, and set it as a gobject property on the new msg */
 727         parent_uid = modest_tny_folder_get_header_unique_id (header);
 728         g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
 729                                 parent_uid, g_free);
 730
 731         /* set modest as the X-Mailer
 732          * we could this in the platform factory, but then the header
 733          * would show up before all the others.
 734          */
 735         tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
 736                                        VERSION);
 737
 738         /* Clean */
 739         g_object_unref (G_OBJECT (new_header));
 740         g_object_unref (G_OBJECT (header));
 741         /* ugly to unref it here instead of in the calling func */
 742
 743         if (!is_reply & !forward_as_attach) {
 744                 add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE, NULL);
 745         }
 746
 747         return new_msg;
 748 }
 749
 750 const gchar*
 751 modest_tny_msg_get_parent_uid (TnyMsg *msg)
 752 {
 753         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 754
 755         return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
 756 }
 757
 758 static gchar *get_signed_protocol (TnyMimePart *part)
 759 {
 760         TnyList *header_pairs;
 761         TnyIterator *iterator;
 762         gchar *result = NULL;
 763
 764         header_pairs = TNY_LIST (tny_simple_list_new ());
 765         tny_mime_part_get_header_pairs (part, header_pairs);
 766         iterator = tny_list_create_iterator (header_pairs);
 767
 768         while (!result && !tny_iterator_is_done (iterator)) {
 769                 TnyPair *pair;
 770                 const gchar *name;
 771
 772                 pair = TNY_PAIR (tny_iterator_get_current (iterator));
 773                 name = tny_pair_get_name (pair);
 774                 if (name && !g_ascii_strcasecmp (name, "Content-Type")) {
 775                         const gchar *s;
 776                         s = tny_pair_get_value (pair);
 777                         if (s) {
 778                                 s = strstr (s, "protocol=");
 779                                 if (s) {
 780                                         const gchar *t;
 781                                         s += 9;
 782                                         if (*s == '\"') {
 783                                                 s++;
 784                                                 t = strstr (s, "\"");
 785                                         } else {
 786                                                 t = strstr (s, ";");
 787                                         }
 788                                         result = g_strndup (s, t - s);
 789                                 }
 790                         }
 791                 }
 792
 793                 g_object_unref (pair);
 794                 tny_iterator_next (iterator);
 795         }
 796
 797         g_object_unref (iterator);
 798         g_object_unref (header_pairs);
 799
 800         return result;
 801 }
 802
 803 TnyMimePart *
 804 modest_tny_msg_get_attachments_parent (TnyMsg *msg)
 805 {
 806         TnyMimePart *result;
 807         const gchar *content_type;
 808
 809         result = NULL;
 810
 811         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 812         if (content_type && !strcmp (content_type, "multipart/signed")) {
 813                 TnyList *msg_children;
 814                 TnyIterator *iterator;
 815                 gchar *signed_protocol;
 816
 817                 msg_children = TNY_LIST (tny_simple_list_new ());
 818                 tny_mime_part_get_parts (TNY_MIME_PART (msg), msg_children);
 819
 820                 iterator = tny_list_create_iterator (msg_children);
 821                 signed_protocol = get_signed_protocol (TNY_MIME_PART (msg));
 822
 823                 while (!result && !tny_iterator_is_done (iterator)) {
 824                         TnyMimePart *part;
 825
 826                         part = TNY_MIME_PART (tny_iterator_get_current (iterator));
 827                         if (signed_protocol) {
 828                                 const gchar *part_content_type;
 829
 830                                 part_content_type = tny_mime_part_get_content_type (part);
 831                                 if (part_content_type && g_ascii_strcasecmp (part_content_type, signed_protocol)) {
 832                                         result = g_object_ref (part);
 833                                 }
 834                         } else {
 835                                 result = g_object_ref (part);
 836                         }
 837
 838                         g_object_unref (part);
 839                         tny_iterator_next (iterator);
 840                 }
 841
 842                 g_object_unref (iterator);
 843                 g_free (signed_protocol);
 844                 g_object_unref (msg_children);
 845         }
 846         if (result == NULL) {
 847                 result = g_object_ref (msg);
 848         }
 849
 850         return result;
 851 }
 852
 853
 854
 855 static void
 856 add_if_attachment (gpointer data, gpointer user_data)
 857 {
 858         TnyMimePart *part;
 859         GList **attachments_list;
 860
 861         part = TNY_MIME_PART (data);
 862         attachments_list = ((GList **) user_data);
 863
 864         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 865                 *attachments_list = g_list_prepend (*attachments_list, part);
 866                 g_object_ref (part);
 867         }
 868 }
 869
 870 TnyMsg*
 871 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 872                                    const gchar *from,
 873                                    const gchar *signature,
 874                                    ModestTnyMsgForwardType forward_type)
 875 {
 876         TnyMsg *new_msg;
 877         TnyList *parts = NULL;
 878         GList *attachments_list = NULL;
 879         TnyMimePart *part_to_check = NULL;
 880
 881         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 882
 883         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
 884
 885         /* Add attachments */
 886         parts = TNY_LIST (tny_simple_list_new());
 887         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
 888         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 889
 890         new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
 891                                              attachments_list);
 892
 893         /* Clean */
 894         if (attachments_list) {
 895                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 896                 g_list_free (attachments_list);
 897         }
 898         g_object_unref (G_OBJECT (parts));
 899         g_object_unref (part_to_check);
 900
 901         return new_msg;
 902 }
 903
 904
 905
 906 static gint
 907 count_addresses (const gchar* addresses)
 908 {
 909         gint count = 1;
 910
 911         if (!addresses)
 912                 return 0;
 913
 914         while (*addresses) {
 915                 if (*addresses == ',' || *addresses == ';')
 916                         ++count;
 917                 ++addresses;
 918         }
 919
 920         return count;
 921 }
 922
 923
 924 /* get the new To:, based on the old header,
 925  * result is newly allocated or NULL in case of error
 926  * */
 927 static gchar*
 928 get_new_to (TnyMsg *msg, TnyHeader *header, const gchar* from,
 929             ModestTnyMsgReplyMode reply_mode)
 930 {
 931         gchar* old_reply_to;
 932         gchar* old_from;
 933         gchar* new_to;
 934         gchar* tmp;
 935
 936         /* according to RFC2369 (http://www.faqs.org/rfcs/rfc2369.html), we
 937          * can identify Mailing-List posts by the List-Help header.
 938          * for mailing lists, both the Reply-To: and From: should be included
 939          * in the new To:; for now, we're ignoring List-Post
 940          */
 941         gchar* list_help = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
 942                                                                   "List-Help");
 943         gboolean is_mailing_list = (list_help != NULL);
 944         g_free (list_help);
 945
 946
 947         /* reply to sender, use ReplyTo or From */
 948         old_reply_to = modest_tny_mime_part_get_header_value (TNY_MIME_PART(msg),
 949                                                               "Reply-To");
 950         old_from     = tny_header_dup_from (header);
 951
 952         if (!old_from && !old_reply_to) {
 953                 g_debug ("%s: failed to get either Reply-To: or From: from header",
 954                            __FUNCTION__);
 955                 return NULL;
 956         }
 957
 958         /* for mailing lists, use both Reply-To and From if we did a
 959          * 'Reply All:'
 960          * */
 961         if (is_mailing_list && reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL &&
 962             old_reply_to && old_from && strcmp (old_from, old_reply_to) != 0)
 963                 new_to = g_strjoin (",", old_reply_to, old_from, NULL);
 964         else
 965                 /* otherwise use either Reply-To: (preferred) or From: */
 966                 new_to = g_strdup (old_reply_to ? old_reply_to : old_from);
 967         g_free (old_from);
 968         g_free (old_reply_to);
 969
 970         /* in case of ReplyAll, we need to add the Recipients in the old To: */
 971         if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
 972                 gchar *old_to = tny_header_dup_to (header);
 973                 if (!old_to)
 974                         g_debug ("%s: no To: address found in source mail",
 975                                    __FUNCTION__);
 976                 else {
 977                         /* append the old To: */
 978                         gchar *tmp = g_strjoin (",", new_to, old_to, NULL);
 979                         g_free (new_to);
 980                         new_to = tmp;
 981                         g_free (old_to);
 982                 }
 983
 984                 /* remove duplicate entries */
 985                 gchar *tmp = modest_text_utils_remove_duplicate_addresses (new_to);
 986                 g_free (new_to);
 987                 new_to = tmp;
 988
 989                 /* now, strip me (the new From:) from the new_to, but only if
 990                  * there are >1 addresses there */
 991                 if (count_addresses (new_to) > 1) {
 992                         gchar *tmp = modest_text_utils_remove_address (new_to, from);
 993                         g_free (new_to);
 994                         new_to = tmp;
 995                 }
 996         }
 997
 998         tmp = modest_text_utils_simplify_recipients (new_to);
 999         g_free (new_to);
1000         new_to = tmp;
1001
1002         return new_to;
1003 }
1004
1005
1006 /* get the new Cc:, based on the old header,
1007  * result is newly allocated or NULL in case of error */
1008 static gchar*
1009 get_new_cc (TnyHeader *header, const gchar* from, const gchar *new_to)
1010 {
1011         gchar *old_cc, *result, *dup;
1012
1013         old_cc = tny_header_dup_cc (header);
1014         if (!old_cc)
1015                 return NULL;
1016
1017         /* remove me (the new From:) from the Cc: list */
1018         dup =  modest_text_utils_remove_address (old_cc, from);
1019
1020         if (new_to) {
1021                 gchar **to_parts, **current;
1022
1023                 to_parts = g_strsplit (new_to, ",", 0);
1024                 for (current = to_parts; current && *current != '\0'; current++) {
1025                         gchar *dup2;
1026
1027                         dup2 = modest_text_utils_remove_address (dup, g_strstrip (*current));
1028                         g_free (dup);
1029                         dup = dup2;
1030                 }
1031                 g_strfreev (to_parts);
1032         }
1033
1034         result = modest_text_utils_remove_duplicate_addresses (dup);
1035         g_free (dup);
1036         g_free (old_cc);
1037         return result;
1038 }
1039
1040 void
1041 modest_tny_msg_get_references (TnyMsg *msg, gchar **message_id, gchar **references, gchar **in_reply_to)
1042 {
1043         TnyList *headers;
1044         TnyIterator *iterator;
1045         gchar *l_message_id;
1046         gchar *l_references;
1047         gchar *l_in_reply_to;
1048
1049         g_return_if_fail (TNY_IS_MSG (msg));
1050
1051         l_message_id = NULL;
1052         l_references = NULL;
1053         l_in_reply_to = NULL;
1054
1055         headers = TNY_LIST (tny_simple_list_new ());
1056         tny_mime_part_get_header_pairs (TNY_MIME_PART (msg), headers);
1057
1058         iterator = tny_list_create_iterator (headers);
1059         while (!tny_iterator_is_done (iterator)) {
1060                 TnyPair *pair;
1061                 const gchar *name;
1062
1063                 pair = TNY_PAIR (tny_iterator_get_current (iterator));
1064                 name = tny_pair_get_name (pair);
1065                 if (!g_strcasecmp (name, "References")) {
1066                         if (l_references) g_free (l_references);
1067                         l_references = g_strdup (tny_pair_get_value (pair));
1068                 } else if (!g_strcasecmp (name, "In-Reply-To")) {
1069                         if (l_in_reply_to) g_free (l_in_reply_to);
1070                         l_in_reply_to = g_strdup (tny_pair_get_value (pair));
1071                 } else if (!g_strcasecmp (name, "Message-ID")) {
1072                         if (l_message_id) g_free (l_message_id);
1073                         l_message_id = g_strdup (tny_pair_get_value (pair));
1074                 }
1075
1076                 g_object_unref (pair);
1077                 tny_iterator_next (iterator);
1078         }
1079
1080         g_object_unref (iterator);
1081         g_object_unref (headers);
1082
1083         if (message_id) {
1084                 *message_id = l_message_id;
1085         } else {
1086                 g_free (l_message_id);
1087         }
1088
1089         if (in_reply_to) {
1090                 *in_reply_to = l_in_reply_to;
1091         } else {
1092                 g_free (l_in_reply_to);
1093         }
1094
1095         if (references) {
1096                 *references = l_references;
1097         } else {
1098                 g_free (l_references);
1099         }
1100 }
1101
1102 static void
1103 set_references (TnyMsg *reply_msg, TnyMsg *original_msg)
1104 {
1105         gchar *orig_references, *orig_in_reply_to, *orig_message_id;
1106         gchar *references, *in_reply_to;
1107
1108         modest_tny_msg_get_references (original_msg, &orig_message_id, &orig_references, &orig_in_reply_to);
1109
1110         references = NULL;
1111         in_reply_to = NULL;
1112
1113         if (orig_message_id)
1114                 in_reply_to = g_strdup (orig_message_id);
1115
1116         if (orig_references) {
1117                 if (orig_message_id)
1118                         references = g_strconcat (orig_references, "\n        ", orig_message_id, NULL);
1119                 else
1120                         references = g_strdup (orig_references);
1121
1122         } else if (orig_in_reply_to) {
1123                 if (orig_message_id)
1124                         references = g_strconcat (orig_in_reply_to, "\n        ", orig_message_id, NULL);
1125                 else
1126                         references = g_strdup (orig_in_reply_to);
1127         } else if (orig_message_id) {
1128                 references = g_strdup (orig_message_id);
1129         }
1130
1131         g_free (orig_references);
1132         g_free (orig_in_reply_to);
1133         g_free (orig_message_id);
1134
1135         if (in_reply_to) {
1136                 tny_mime_part_set_header_pair (TNY_MIME_PART (reply_msg), "In-Reply-To", in_reply_to);
1137         }
1138         if (references) {
1139                 tny_mime_part_set_header_pair (TNY_MIME_PART (reply_msg), "References", references);
1140         }
1141 }
1142
1143 TnyMsg*
1144 modest_tny_msg_create_reply_msg (TnyMsg *msg,
1145                                  TnyHeader *header,
1146                                  const gchar *from,
1147                                  const gchar *signature,
1148                                  ModestTnyMsgReplyType reply_type,
1149                                  ModestTnyMsgReplyMode reply_mode)
1150 {
1151         TnyMsg *new_msg = NULL;
1152         TnyHeader *new_header;
1153         gchar *new_to = NULL;
1154         TnyList *parts = NULL;
1155         GList *attachments_list = NULL;
1156         TnyMimePart *part_to_check = NULL;
1157
1158         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
1159
1160         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
1161
1162         parts = TNY_LIST (tny_simple_list_new());
1163         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
1164         tny_list_foreach (parts, add_if_attachment, &attachments_list);
1165
1166         new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
1167                                              attachments_list);
1168
1169         set_references (new_msg, msg);
1170         if (attachments_list != NULL) {
1171                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
1172                 g_list_free (attachments_list);
1173         }
1174         g_object_unref (parts);
1175
1176         /* Fill the header */
1177         if (header)
1178                 g_object_ref (header);
1179         else
1180                 header = tny_msg_get_header (msg);
1181
1182
1183         new_header = tny_msg_get_header(new_msg);
1184         new_to = get_new_to (msg, header, from, reply_mode);
1185         if (!new_to)
1186                 g_debug ("%s: failed to get new To:", __FUNCTION__);
1187         else {
1188                 tny_header_set_to (new_header, new_to);
1189         }
1190
1191         if (reply_mode == MODEST_TNY_MSG_REPLY_MODE_ALL) {
1192                 gchar *new_cc = get_new_cc (header, from, new_to);
1193                 if (new_cc) {
1194                         tny_header_set_cc (new_header, new_cc);
1195                         g_free (new_cc);
1196                 }
1197         }
1198
1199         if (new_to)
1200                 g_free (new_to);
1201
1202         /* Clean */
1203         g_object_unref (G_OBJECT (new_header));
1204         g_object_unref (G_OBJECT (header));
1205         g_object_unref (G_OBJECT (part_to_check));
1206
1207         return new_msg;
1208 }
1209
1210
1211 static gboolean
1212 is_ascii(const gchar *s)
1213 {
1214         if (!s)
1215                 return TRUE;
1216         while (s[0]) {
1217                 if (s[0] & 128 || s[0] < 32)
1218                         return FALSE;
1219                 s++;
1220         }
1221         return TRUE;
1222 }
1223
1224 static char *
1225 get_content_type(const gchar *s)
1226 {
1227         GString *type;
1228
1229         type = g_string_new("text/plain");
1230         if (!is_ascii(s)) {
1231                 if (g_utf8_validate(s, -1, NULL)) {
1232                         g_string_append(type, "; charset=\"utf-8\"");
1233                 } else {
1234                         /* it should be impossible to reach this, but better safe than sorry */
1235                         g_debug("invalid utf8 in message");
1236                         g_string_append(type, "; charset=\"latin1\"");
1237                 }
1238         }
1239         return g_string_free(type, FALSE);
1240 }
1241
1242 guint64
1243 modest_tny_msg_estimate_size (const gchar *plain_body, const gchar *html_body,
1244                               guint64 parts_count,
1245                               guint64 parts_size)
1246 {
1247         guint64 result;
1248
1249         /* estimation of headers size */
1250         result = 1024;
1251
1252         /* We add a 20% of size due to the increase in 7bit encoding */
1253         if (plain_body) {
1254                 result += strlen (plain_body) * 120 / 100;
1255         }
1256         if (html_body) {
1257                 result += strlen (html_body) * 120 / 100;
1258         }
1259
1260         /* 256 bytes per additional part because of their headers */
1261         result += parts_count * 256;
1262
1263         /* 150% of increase per encoding */
1264         result += parts_size * 3 / 2;
1265
1266         return result;
1267 }
1268
1269 GSList *
1270 modest_tny_msg_header_get_all_recipients_list (TnyHeader *header)
1271 {
1272         GSList *recipients = NULL;
1273         gchar *from = NULL, *to = NULL, *cc = NULL, *bcc = NULL;
1274         gchar *after_remove;
1275         GString *buffer;
1276         gboolean add_separator = TRUE;
1277
1278         if (header == NULL)
1279                 return NULL;
1280
1281         buffer = g_string_new ("");
1282
1283         from = tny_header_dup_from (header);
1284         to = tny_header_dup_to (header);
1285         cc = tny_header_dup_cc (header);
1286         bcc = tny_header_dup_bcc (header);
1287
1288         recipients = NULL;
1289         if (from) {
1290                 buffer = g_string_append (buffer, from);
1291                 add_separator = TRUE;
1292         }
1293         if (to) {
1294                 if (add_separator)
1295                         buffer = g_string_append (buffer, "; ");
1296                 else
1297                         add_separator = TRUE;
1298
1299                 buffer = g_string_append (buffer, to);
1300         }
1301         if (cc) {
1302                 if (add_separator)
1303                         buffer = g_string_append (buffer, "; ");
1304                 else
1305                         add_separator = TRUE;
1306
1307                 buffer = g_string_append (buffer, cc);
1308         }
1309         if (bcc) {
1310                 if (add_separator)
1311                         buffer = g_string_append (buffer, "; ");
1312                 else
1313                         add_separator = TRUE;
1314
1315                 buffer = g_string_append (buffer, bcc);
1316         }
1317
1318         after_remove = modest_text_utils_remove_duplicate_addresses (buffer->str);
1319         g_string_free (buffer, TRUE);
1320
1321         recipients = modest_text_utils_split_addresses_list (after_remove);
1322         g_free (after_remove);
1323
1324         return recipients;
1325 }
1326
1327 GSList *
1328 modest_tny_msg_get_all_recipients_list (TnyMsg *msg)
1329 {
1330         TnyHeader *header = NULL;
1331         GSList *recipients = NULL;
1332
1333         if (msg == NULL)
1334                 return NULL;
1335
1336         header = tny_msg_get_header (msg);
1337         if (header == NULL)
1338                 return NULL;
1339
1340         recipients = modest_tny_msg_header_get_all_recipients_list (header);
1341         g_object_unref (header);
1342
1343         return recipients;
1344 }
1345