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-formatter.h"
  37 #include <tny-camel-stream.h>
  38 #include <tny-camel-mime-part.h>
  39 #include <camel/camel-stream-buffer.h>
  40 #include <camel/camel-stream-mem.h>
  41 #include <glib/gprintf.h>
  42 #include <modest-tny-folder.h>
  43
  44 #ifdef HAVE_CONFIG_H
  45 #include <config.h>
  46 #endif /*HAVE_CONFIG_H */
  47
  48 #include <modest-tny-msg.h>
  49 #include "modest-text-utils.h"
  50
  51 static TnyMimePart * add_body_part (TnyMsg *msg, const gchar *body,
  52                                     const gchar *content_type);
  53 static TnyMimePart * add_html_body_part (TnyMsg *msg, const gchar *body);
  54 static void add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline);
  55 static void add_images (TnyMsg *msg, GList *attachments_list);
  56 static char * get_content_type(const gchar *s);
  57 static gboolean is_ascii(const gchar *s);
  58
  59
  60 TnyMsg*
  61 modest_tny_msg_new (const gchar* mailto, const gchar* from, const gchar *cc,
  62                     const gchar *bcc, const gchar* subject, const gchar *body,
  63                     GList *attachments)
  64 {
  65         TnyMsg *new_msg;
  66         TnyHeader *header;
  67         gchar *content_type;
  68
  69         /* Create new msg */
  70         new_msg = modest_formatter_create_message (NULL, TRUE, (attachments != NULL), FALSE);
  71         header  = tny_msg_get_header (new_msg);
  72
  73         if ((from != NULL) && (strlen(from) > 0)) {
  74                 tny_header_set_from (TNY_HEADER (header), from);
  75                 tny_header_set_replyto (TNY_HEADER (header), from);
  76         }
  77         if ((mailto != NULL) && (strlen(mailto) > 0))
  78                 tny_header_set_to (TNY_HEADER (header), mailto);
  79         if ((cc != NULL) && (strlen(cc) > 0))
  80                 tny_header_set_cc (TNY_HEADER (header), cc);
  81         if ((bcc != NULL) && (strlen(bcc) > 0))
  82                 tny_header_set_bcc (TNY_HEADER (header), bcc);
  83
  84         if ((subject != NULL) && (strlen(subject) > 0))
  85                 tny_header_set_subject (TNY_HEADER (header), subject);
  86
  87         content_type = get_content_type(body);
  88
  89         /* set modest as the X-Mailer
  90          * we could this in the platform factory, but then the header
  91          * would show up before all the others.
  92          */
  93         tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
  94                                        VERSION);
  95
  96         /* Add the body of the new mail */
  97         /* This is needed even if body is NULL or empty. */
  98         add_body_part (new_msg, body, content_type);
  99         g_free (content_type);
 100
 101         /* Add attachments */
 102         if (attachments)
 103                 add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
 104
 105         return new_msg;
 106 }
 107
 108 TnyMsg*
 109 modest_tny_msg_new_html_plain (const gchar* mailto, const gchar* from, const gchar *cc,
 110                                const gchar *bcc, const gchar* subject,
 111                                const gchar *html_body, const gchar *plain_body,
 112                                GList *attachments, GList *images)
 113 {
 114         TnyMsg *new_msg;
 115         TnyHeader *header;
 116         gchar *content_type;
 117
 118         /* Create new msg */
 119         new_msg = modest_formatter_create_message (NULL, FALSE, (attachments != NULL), (images != NULL));
 120         header  = tny_msg_get_header (new_msg);
 121
 122         if ((from != NULL) && (strlen(from) > 0)) {
 123                 tny_header_set_from (TNY_HEADER (header), from);
 124                 tny_header_set_replyto (TNY_HEADER (header), from);
 125         }
 126         if ((mailto != NULL) && (strlen(mailto) > 0))
 127                 tny_header_set_to (TNY_HEADER (header), mailto);
 128         if ((cc != NULL) && (strlen(cc) > 0))
 129                 tny_header_set_cc (TNY_HEADER (header), cc);
 130         if ((bcc != NULL) && (strlen(bcc) > 0))
 131                 tny_header_set_bcc (TNY_HEADER (header), bcc);
 132
 133         if ((subject != NULL) && (strlen(subject) > 0))
 134                 tny_header_set_subject (TNY_HEADER (header), subject);
 135
 136         content_type = get_content_type(plain_body);
 137
 138         /* set modest as the X-Mailer
 139          * we could this in the platform factory, but then the header
 140          * would show up before all the others.
 141          */
 142         tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
 143                                        VERSION);
 144
 145         /* Add the body of the new mail */
 146         add_body_part (new_msg, plain_body, content_type);
 147         add_html_body_part (new_msg, html_body);
 148         g_free (content_type);
 149
 150         /* Add attachments */
 151         add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
 152         add_images (new_msg, images);
 153
 154         return new_msg;
 155 }
 156
 157
 158 /* FIXME: this func copy from modest-mail-operation: refactor */
 159 static TnyMimePart *
 160 add_body_part (TnyMsg *msg,
 161                const gchar *body,
 162                const gchar *content_type)
 163 {
 164         TnyMimePart *text_body_part = NULL;
 165         TnyStream *text_body_stream;
 166
 167         /* Create the stream */
 168         text_body_stream = TNY_STREAM (tny_camel_stream_new
 169                                        (camel_stream_mem_new_with_buffer
 170                                         (body, (body ? strlen(body) : 0))));
 171
 172         text_body_part = modest_formatter_create_body_part (NULL, msg);
 173
 174         /* Construct MIME part */
 175         tny_stream_reset (text_body_stream);
 176         tny_mime_part_construct_from_stream (text_body_part,
 177                                              text_body_stream,
 178                                              content_type);
 179         tny_stream_reset (text_body_stream);
 180
 181         g_object_unref (G_OBJECT(text_body_part));
 182
 183         /* Clean */
 184         g_object_unref (text_body_stream);
 185
 186         return text_body_part;
 187 }
 188
 189 static TnyMimePart *
 190 add_html_body_part (TnyMsg *msg,
 191                     const gchar *body)
 192 {
 193         TnyMimePart *html_body_part = NULL;
 194         TnyStream *html_body_stream;
 195
 196         /* Create the stream */
 197         html_body_stream = TNY_STREAM (tny_camel_stream_new
 198                                        (camel_stream_mem_new_with_buffer
 199                                         (body, strlen(body))));
 200
 201         /* Create body part if needed */
 202         html_body_part = modest_formatter_create_body_part (NULL, msg);
 203
 204         /* Construct MIME part */
 205         tny_stream_reset (html_body_stream);
 206         tny_mime_part_construct_from_stream (html_body_part,
 207                                              html_body_stream,
 208                                              "text/html; charset=utf-8");
 209         tny_stream_reset (html_body_stream);
 210
 211         g_object_unref (G_OBJECT(html_body_part));
 212
 213         /* Clean */
 214         g_object_unref (html_body_stream);
 215
 216         return html_body_part;
 217 }
 218
 219 static TnyMimePart *
 220 copy_mime_part (TnyMimePart *part)
 221 {
 222         TnyMimePart *result = NULL;
 223         const gchar *attachment_content_type;
 224         const gchar *attachment_filename;
 225         const gchar *attachment_cid;
 226         TnyList *parts;
 227         TnyIterator *iterator;
 228         TnyStream *attachment_stream;
 229
 230         if (TNY_IS_MSG (part)) {
 231                 g_object_ref (part);
 232                 return part;
 233         }
 234
 235         result = tny_platform_factory_new_mime_part (
 236                 modest_runtime_get_platform_factory());
 237
 238         attachment_content_type = tny_mime_part_get_content_type (part);
 239
 240         /* get mime part headers */
 241         attachment_filename = tny_mime_part_get_filename (part);
 242         attachment_cid = tny_mime_part_get_content_id (part);
 243
 244         /* fill the stream */
 245         attachment_stream = tny_mime_part_get_stream (part);
 246         tny_stream_reset (attachment_stream);
 247         tny_mime_part_construct_from_stream (result,
 248                                              attachment_stream,
 249                                              attachment_content_type);
 250         tny_stream_reset (attachment_stream);
 251
 252         /* set other mime part fields */
 253         tny_mime_part_set_filename (result, attachment_filename);
 254         tny_mime_part_set_content_id (result, attachment_cid);
 255
 256         /* copy subparts */
 257         parts = tny_simple_list_new ();
 258         tny_mime_part_get_parts (part, parts);
 259         iterator = tny_list_create_iterator (parts);
 260         while (!tny_iterator_is_done (iterator)) {
 261                 TnyMimePart *subpart = TNY_MIME_PART (tny_iterator_get_current (iterator));
 262                 if (subpart) {
 263                         TnyMimePart *subpart_copy = copy_mime_part (subpart);
 264                         tny_mime_part_add_part (result, subpart_copy);
 265                         g_object_unref (subpart);
 266                 }
 267
 268                 tny_iterator_next (iterator);
 269         }
 270         g_object_unref (iterator);
 271         g_object_unref (parts);
 272         g_object_unref (attachment_stream);
 273
 274         return result;
 275 }
 276
 277 static void
 278 add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline)
 279 {
 280         GList *pos;
 281         TnyMimePart *attachment_part, *old_attachment;
 282
 283         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 284
 285                 old_attachment = pos->data;
 286                 if (!tny_mime_part_is_purged (old_attachment)) {
 287                         attachment_part = copy_mime_part (old_attachment);
 288                         tny_mime_part_add_part (TNY_MIME_PART (part), attachment_part);
 289                         tny_mime_part_set_header_pair (attachment_part, "Content-Disposition",
 290                                                        add_inline?"inline":"attachment");
 291                         g_object_unref (attachment_part);
 292                 }
 293         }
 294 }
 295
 296 static void
 297 add_images (TnyMsg *msg, GList *images_list)
 298 {
 299         TnyMimePart *related_part = NULL;
 300         const gchar *content_type;
 301
 302         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 303
 304         if ((content_type != NULL) && !strcasecmp (content_type, "multipart/related")) {
 305                 related_part = g_object_ref (msg);
 306         } else if ((content_type != NULL) && !strcasecmp (content_type, "multipart/mixed")) {
 307                 TnyList *parts = TNY_LIST (tny_simple_list_new ());
 308                 TnyIterator *iter = NULL;
 309                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 310                 iter = tny_list_create_iterator (parts);
 311
 312                 while (!tny_iterator_is_done (iter)) {
 313                         TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
 314                         if (part && !g_strcasecmp (tny_mime_part_get_content_type (part), "multipart/related")) {
 315                                 related_part = part;
 316                                 break;
 317                         } else {
 318                                 g_object_unref (part);
 319                         }
 320                         tny_iterator_next (iter);
 321                 }
 322                 g_object_unref (iter);
 323                 g_object_unref (parts);
 324         }
 325
 326         if (related_part != NULL) {
 327                 /* TODO: attach images in their proper place */
 328                 add_attachments (related_part, images_list, TRUE);
 329         }
 330 }
 331
 332
 333 gchar *
 334 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html, gboolean *is_html)
 335 {
 336         TnyStream *stream;
 337         TnyMimePart *body;
 338         GtkTextBuffer *buf;
 339         GtkTextIter start, end;
 340         gchar *to_quote;
 341         gboolean result_was_html = TRUE;
 342
 343         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 344
 345         body = modest_tny_msg_find_body_part(msg, want_html);
 346         if (!body)
 347                 return NULL;
 348
 349         buf = gtk_text_buffer_new (NULL);
 350         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 351         tny_stream_reset (stream);
 352         tny_mime_part_decode_to_stream (body, stream);
 353         tny_stream_reset (stream);
 354
 355         gtk_text_buffer_get_bounds (buf, &start, &end);
 356         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 357         if (tny_mime_part_content_type_is (body, "text/plain")) {
 358                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 359                 g_free (to_quote);
 360                 to_quote = to_quote_converted;
 361                 result_was_html = FALSE;
 362         }
 363
 364         g_object_unref (buf);
 365         g_object_unref (G_OBJECT(stream));
 366         g_object_unref (G_OBJECT(body));
 367
 368         if (is_html != NULL)
 369                 *is_html = result_was_html;
 370
 371         return to_quote;
 372 }
 373
 374
 375 TnyMimePart*
 376 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 377 {
 378         const gchar *desired_mime_type = want_html ? "text/html" : "text/plain";
 379         TnyMimePart *part = NULL;
 380         TnyList *parts = NULL;
 381         TnyIterator *iter = NULL;
 382
 383         if (!msg)
 384                 return NULL;
 385
 386         parts = TNY_LIST (tny_simple_list_new());
 387         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 388
 389         iter  = tny_list_create_iterator(parts);
 390
 391         /* no parts? assume it's single-part message */
 392         if (tny_iterator_is_done(iter)) {
 393                 g_object_unref (G_OBJECT(iter));
 394                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 395         } else {
 396                 do {
 397                         gchar *content_type = NULL;
 398
 399                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 400
 401                         if (!part) {
 402                                 g_warning ("%s: not a valid mime part", __FUNCTION__);
 403                                 continue;
 404                         }
 405
 406                         /* it's a message --> ignore */
 407                         if (part && TNY_IS_MSG (part)) {
 408                                 g_object_unref (part);
 409                                 tny_iterator_next (iter);
 410                                 continue;
 411                         }
 412
 413
 414                         /* we need to strdown the content type, because
 415                          * tny_mime_part_has_content_type does not do it...
 416                          */
 417                         content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 418
 419                         if (g_str_has_prefix (content_type, desired_mime_type) && !tny_mime_part_is_attachment (part)) {
 420                                 /* we found the desired mime-type! */
 421                                 g_free (content_type);
 422                                 break;
 423
 424                         } else  if (g_str_has_prefix(content_type, "multipart")) {
 425
 426                                 /* multipart? recurse! */
 427                                 g_object_unref (part);
 428                                 g_free (content_type);
 429                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 430                                 if (part)
 431                                         break;
 432                         } else
 433                                 g_free (content_type);
 434
 435                         if (part) {
 436                                 g_object_unref (G_OBJECT(part));
 437                                 part = NULL;
 438                         }
 439
 440                         tny_iterator_next (iter);
 441
 442                 } while (!tny_iterator_is_done(iter));
 443         }
 444
 445         g_object_unref (G_OBJECT(iter));
 446         g_object_unref (G_OBJECT(parts));
 447
 448         /* if were trying to find an HTML part and couldn't find it,
 449          * try to find a text/plain part instead
 450          */
 451         if (!part && want_html)
 452                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 453         else
 454                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 455                               * part */
 456 }
 457
 458
 459 TnyMimePart*
 460 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 461 {
 462         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 463
 464         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 465                                                              want_html);
 466 }
 467
 468
 469 #define MODEST_TNY_MSG_PARENT_UID "parent-uid"
 470
 471 static TnyMsg *
 472 create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
 473                            const gchar *signature, gboolean is_reply,
 474                            guint type /*ignored*/, GList *attachments)
 475 {
 476         TnyMsg *new_msg;
 477         TnyHeader *new_header;
 478         gchar *new_subject;
 479         TnyMimePart *body = NULL;
 480         ModestFormatter *formatter;
 481         gchar *subject_prefix;
 482         gboolean no_text_part;
 483
 484         if (header)
 485                 g_object_ref (header);
 486         else
 487                 header = tny_msg_get_header (msg);
 488
 489         /* Get body from original msg. Always look for the text/plain
 490            part of the message to create the reply/forwarded mail */
 491         if (msg != NULL)
 492                 body   = modest_tny_msg_find_body_part (msg, FALSE);
 493
 494         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
 495                                   NULL))
 496                 formatter = modest_formatter_new ("text/html", signature);
 497         else
 498                 formatter = modest_formatter_new ("text/plain", signature);
 499
 500
 501         /* if we don't have a text-part */
 502         no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
 503
 504         /* when we're reply, include the text part if we have it, or nothing otherwise. */
 505         if (is_reply)
 506                 new_msg = modest_formatter_quote  (formatter, no_text_part ? NULL: body, header,
 507                                                     attachments);
 508         else {
 509                 /* for attachements; inline if there is a text part, and include the
 510                  * full old mail if there was none */
 511                 if (no_text_part)
 512                         new_msg = modest_formatter_attach (formatter, msg, header);
 513                 else
 514                         new_msg = modest_formatter_inline  (formatter, body, header,
 515                                                             attachments);
 516         }
 517
 518         g_object_unref (G_OBJECT(formatter));
 519         if (body)
 520                 g_object_unref (G_OBJECT(body));
 521
 522         /* Fill the header */
 523         new_header = tny_msg_get_header (new_msg);
 524         tny_header_set_from (new_header, from);
 525         tny_header_set_replyto (new_header, from);
 526
 527         /* Change the subject */
 528         if (is_reply)
 529                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 530         else
 531                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 532         new_subject =
 533                 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
 534                                                              subject_prefix);
 535         g_free (subject_prefix);
 536         tny_header_set_subject (new_header, (const gchar *) new_subject);
 537         g_free (new_subject);
 538
 539         /* get the parent uid, and set it as a gobject property on the new msg */
 540         if (new_msg) {
 541                 gchar* parent_uid = modest_tny_folder_get_header_unique_id (header);
 542                 g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
 543                                         parent_uid, g_free);
 544         }
 545
 546         /* set modest as the X-Mailer
 547          * we could this in the platform factory, but then the header
 548          * would show up before all the others.
 549          */
 550         tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
 551                                        VERSION);
 552
 553         /* Clean */
 554         g_object_unref (G_OBJECT (new_header));
 555         g_object_unref (G_OBJECT (header));
 556         /* ugly to unref it here instead of in the calling func */
 557
 558         return new_msg;
 559 }
 560
 561 const gchar*
 562 modest_tny_msg_get_parent_uid (TnyMsg *msg)
 563 {
 564         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 565
 566         return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
 567 }
 568
 569
 570
 571 static void
 572 add_if_attachment (gpointer data, gpointer user_data)
 573 {
 574         TnyMimePart *part;
 575         GList **attachments_list;
 576
 577         part = TNY_MIME_PART (data);
 578         attachments_list = ((GList **) user_data);
 579
 580         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 581                 *attachments_list = g_list_prepend (*attachments_list, part);
 582                 g_object_ref (part);
 583         }
 584 }
 585
 586 TnyMsg*
 587 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 588                                    const gchar *from,
 589                                    const gchar *signature,
 590                                    ModestTnyMsgForwardType forward_type)
 591 {
 592         TnyMsg *new_msg;
 593         TnyList *parts = NULL;
 594         GList *attachments_list = NULL;
 595
 596         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 597
 598         /* Add attachments */
 599         parts = TNY_LIST (tny_simple_list_new());
 600         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 601         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 602
 603         new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
 604                                              attachments_list);
 605         add_attachments (TNY_MIME_PART (new_msg), attachments_list, FALSE);
 606
 607         /* Clean */
 608         if (attachments_list)
 609                 g_list_free (attachments_list);
 610         g_object_unref (G_OBJECT (parts));
 611
 612         return new_msg;
 613 }
 614
 615 TnyMsg*
 616 modest_tny_msg_create_reply_msg (TnyMsg *msg,
 617                                  TnyHeader *header,
 618                                  const gchar *from,
 619                                  const gchar *signature,
 620                                  ModestTnyMsgReplyType reply_type,
 621                                  ModestTnyMsgReplyMode reply_mode)
 622 {
 623         TnyMsg *new_msg = NULL;
 624         TnyHeader *new_header;
 625         const gchar* reply_to;
 626         gchar *new_cc = NULL;
 627         const gchar *cc = NULL, *bcc = NULL;
 628         GString *tmp = NULL;
 629         TnyList *parts = NULL;
 630         GList *attachments_list = NULL;
 631
 632         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 633
 634         /* Add attachments */
 635         if (msg != NULL) {
 636                 parts = TNY_LIST (tny_simple_list_new());
 637                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 638                 tny_list_foreach (parts, add_if_attachment, &attachments_list);
 639         }
 640
 641         new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
 642                                              attachments_list);
 643         if (attachments_list) {
 644                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 645                 g_list_free (attachments_list);
 646         }
 647         if (parts)
 648                 g_object_unref (G_OBJECT (parts));
 649
 650         /* Fill the header */
 651         if (header)
 652                 g_object_ref (header);
 653         else
 654                 header = tny_msg_get_header (msg);
 655
 656         new_header = tny_msg_get_header (new_msg);
 657         reply_to = tny_header_get_replyto (header);
 658
 659         if (reply_to)
 660                 tny_header_set_to (new_header, reply_to);
 661         else
 662                 tny_header_set_to (new_header, tny_header_get_from (header));
 663
 664         switch (reply_mode) {
 665         case MODEST_TNY_MSG_REPLY_MODE_SENDER:
 666                 /* Do not fill neither cc nor bcc */
 667                 break;
 668         case MODEST_TNY_MSG_REPLY_MODE_LIST:
 669                 /* TODO */
 670                 break;
 671         case MODEST_TNY_MSG_REPLY_MODE_ALL:
 672                 /* Concatenate to, cc and bcc */
 673                 cc = tny_header_get_cc (header);
 674                 bcc = tny_header_get_bcc (header);
 675
 676                 tmp = g_string_new (tny_header_get_to (header));
 677                 if (cc)
 678                         g_string_append_printf (tmp, ",%s",cc);
 679                 if (bcc)
 680                         g_string_append_printf (tmp, ",%s",bcc);
 681
 682                /* Remove my own address from the cc list. TODO:
 683                   remove also the To: of the new message, needed due
 684                   to the new reply_to feature */
 685                 new_cc = (gchar *)
 686                         modest_text_utils_remove_address ((const gchar *) tmp->str,
 687                                                           from);
 688                 /* FIXME: remove also the mails from the new To: */
 689                 tny_header_set_cc (new_header, new_cc);
 690
 691                 /* Clean */
 692                 g_string_free (tmp, TRUE);
 693                 g_free (new_cc);
 694                 break;
 695         }
 696
 697         /* Clean */
 698         g_object_unref (G_OBJECT (new_header));
 699         g_object_unref (G_OBJECT (header));
 700
 701         return new_msg;
 702 }
 703
 704
 705 static gboolean
 706 is_ascii(const gchar *s)
 707 {
 708         if (!s)
 709                 return TRUE;
 710         while (s[0]) {
 711                 if (s[0] & 128 || s[0] < 32)
 712                         return FALSE;
 713                 s++;
 714         }
 715         return TRUE;
 716 }
 717
 718 static char *
 719 get_content_type(const gchar *s)
 720 {
 721         GString *type;
 722
 723         type = g_string_new("text/plain");
 724         if (!is_ascii(s)) {
 725                 if (g_utf8_validate(s, -1, NULL)) {
 726                         g_string_append(type, "; charset=\"utf-8\"");
 727                 } else {
 728                         /* it should be impossible to reach this, but better safe than sorry */
 729                         g_warning("invalid utf8 in message");
 730                         g_string_append(type, "; charset=\"latin1\"");
 731                 }
 732         }
 733         return g_string_free(type, FALSE);
 734 }