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         if (header)
 105                 g_object_unref(header);
 106
 107         return new_msg;
 108 }
 109
 110 TnyMsg*
 111 modest_tny_msg_new_html_plain (const gchar* mailto, const gchar* from, const gchar *cc,
 112                                const gchar *bcc, const gchar* subject,
 113                                const gchar *html_body, const gchar *plain_body,
 114                                GList *attachments, GList *images)
 115 {
 116         TnyMsg *new_msg;
 117         TnyHeader *header;
 118         gchar *content_type;
 119
 120         /* Create new msg */
 121         new_msg = modest_formatter_create_message (NULL, FALSE, (attachments != NULL), (images != NULL));
 122         header  = tny_msg_get_header (new_msg);
 123
 124         if ((from != NULL) && (strlen(from) > 0)) {
 125                 tny_header_set_from (TNY_HEADER (header), from);
 126                 tny_header_set_replyto (TNY_HEADER (header), from);
 127         }
 128         if ((mailto != NULL) && (strlen(mailto) > 0))
 129                 tny_header_set_to (TNY_HEADER (header), mailto);
 130         if ((cc != NULL) && (strlen(cc) > 0))
 131                 tny_header_set_cc (TNY_HEADER (header), cc);
 132         if ((bcc != NULL) && (strlen(bcc) > 0))
 133                 tny_header_set_bcc (TNY_HEADER (header), bcc);
 134
 135         if ((subject != NULL) && (strlen(subject) > 0))
 136                 tny_header_set_subject (TNY_HEADER (header), subject);
 137
 138         content_type = get_content_type(plain_body);
 139
 140         /* set modest as the X-Mailer
 141          * we could this in the platform factory, but then the header
 142          * would show up before all the others.
 143          */
 144         tny_mime_part_set_header_pair (TNY_MIME_PART (new_msg), "X-Mailer", "Modest "
 145                                        VERSION);
 146
 147         /* Add the body of the new mail */
 148         add_body_part (new_msg, plain_body, content_type);
 149         add_html_body_part (new_msg, html_body);
 150         g_free (content_type);
 151
 152         /* Add attachments */
 153         add_attachments (TNY_MIME_PART (new_msg), attachments, FALSE);
 154         add_images (new_msg, images);
 155         if (header)
 156                 g_object_unref(header);
 157
 158         return new_msg;
 159 }
 160
 161
 162 /* FIXME: this func copy from modest-mail-operation: refactor */
 163 static TnyMimePart *
 164 add_body_part (TnyMsg *msg,
 165                const gchar *body,
 166                const gchar *content_type)
 167 {
 168         TnyMimePart *text_body_part = NULL;
 169         TnyStream *text_body_stream;
 170
 171         /* Create the stream */
 172         text_body_stream = TNY_STREAM (tny_camel_stream_new
 173                                        (camel_stream_mem_new_with_buffer
 174                                         (body, (body ? strlen(body) : 0))));
 175
 176         text_body_part = modest_formatter_create_body_part (NULL, msg);
 177
 178         /* Construct MIME part */
 179         tny_stream_reset (text_body_stream);
 180         tny_mime_part_construct_from_stream (text_body_part,
 181                                              text_body_stream,
 182                                              content_type);
 183         tny_stream_reset (text_body_stream);
 184
 185         g_object_unref (G_OBJECT(text_body_part));
 186
 187         /* Clean */
 188         g_object_unref (text_body_stream);
 189
 190         return text_body_part;
 191 }
 192
 193 static TnyMimePart *
 194 add_html_body_part (TnyMsg *msg,
 195                     const gchar *body)
 196 {
 197         TnyMimePart *html_body_part = NULL;
 198         TnyStream *html_body_stream;
 199
 200         /* Create the stream */
 201         html_body_stream = TNY_STREAM (tny_camel_stream_new
 202                                        (camel_stream_mem_new_with_buffer
 203                                         (body, strlen(body))));
 204
 205         /* Create body part if needed */
 206         html_body_part = modest_formatter_create_body_part (NULL, msg);
 207
 208         /* Construct MIME part */
 209         tny_stream_reset (html_body_stream);
 210         tny_mime_part_construct_from_stream (html_body_part,
 211                                              html_body_stream,
 212                                              "text/html; charset=utf-8");
 213         tny_stream_reset (html_body_stream);
 214
 215         g_object_unref (G_OBJECT(html_body_part));
 216
 217         /* Clean */
 218         g_object_unref (html_body_stream);
 219
 220         return html_body_part;
 221 }
 222
 223 static TnyMimePart *
 224 copy_mime_part (TnyMimePart *part)
 225 {
 226         TnyMimePart *result = NULL;
 227         const gchar *attachment_content_type;
 228         const gchar *attachment_filename;
 229         const gchar *attachment_cid;
 230         TnyList *parts;
 231         TnyIterator *iterator;
 232         TnyStream *attachment_stream;
 233
 234         if (TNY_IS_MSG (part)) {
 235                 g_object_ref (part);
 236                 return part;
 237         }
 238
 239         result = tny_platform_factory_new_mime_part (
 240                 modest_runtime_get_platform_factory());
 241
 242         attachment_content_type = tny_mime_part_get_content_type (part);
 243
 244         /* get mime part headers */
 245         attachment_filename = tny_mime_part_get_filename (part);
 246         attachment_cid = tny_mime_part_get_content_id (part);
 247
 248         /* fill the stream */
 249         attachment_stream = tny_mime_part_get_stream (part);
 250         tny_stream_reset (attachment_stream);
 251         tny_mime_part_construct_from_stream (result,
 252                                              attachment_stream,
 253                                              attachment_content_type);
 254         tny_stream_reset (attachment_stream);
 255
 256         /* set other mime part fields */
 257         tny_mime_part_set_filename (result, attachment_filename);
 258         tny_mime_part_set_content_id (result, attachment_cid);
 259
 260         /* copy subparts */
 261         parts = tny_simple_list_new ();
 262         tny_mime_part_get_parts (part, parts);
 263         iterator = tny_list_create_iterator (parts);
 264         while (!tny_iterator_is_done (iterator)) {
 265                 TnyMimePart *subpart = TNY_MIME_PART (tny_iterator_get_current (iterator));
 266                 if (subpart) {
 267                         TnyMimePart *subpart_copy = copy_mime_part (subpart);
 268                         tny_mime_part_add_part (result, subpart_copy);
 269                         g_object_unref (subpart);
 270                 }
 271
 272                 tny_iterator_next (iterator);
 273         }
 274         g_object_unref (iterator);
 275         g_object_unref (parts);
 276         g_object_unref (attachment_stream);
 277
 278         return result;
 279 }
 280
 281 static void
 282 add_attachments (TnyMimePart *part, GList *attachments_list, gboolean add_inline)
 283 {
 284         GList *pos;
 285         TnyMimePart *attachment_part, *old_attachment;
 286
 287         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 288
 289                 old_attachment = pos->data;
 290                 if (!tny_mime_part_is_purged (old_attachment)) {
 291                         attachment_part = copy_mime_part (old_attachment);
 292                         tny_mime_part_add_part (TNY_MIME_PART (part), attachment_part);
 293                         tny_mime_part_set_header_pair (attachment_part, "Content-Disposition",
 294                                                        add_inline?"inline":"attachment");
 295                         g_object_unref (attachment_part);
 296                 }
 297         }
 298 }
 299
 300 static void
 301 add_images (TnyMsg *msg, GList *images_list)
 302 {
 303         TnyMimePart *related_part = NULL;
 304         const gchar *content_type;
 305
 306         content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 307
 308         if ((content_type != NULL) && !strcasecmp (content_type, "multipart/related")) {
 309                 related_part = g_object_ref (msg);
 310         } else if ((content_type != NULL) && !strcasecmp (content_type, "multipart/mixed")) {
 311                 TnyList *parts = TNY_LIST (tny_simple_list_new ());
 312                 TnyIterator *iter = NULL;
 313                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 314                 iter = tny_list_create_iterator (parts);
 315
 316                 while (!tny_iterator_is_done (iter)) {
 317                         TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
 318                         if (part && !g_strcasecmp (tny_mime_part_get_content_type (part), "multipart/related")) {
 319                                 related_part = part;
 320                                 break;
 321                         } else {
 322                                 g_object_unref (part);
 323                         }
 324                         tny_iterator_next (iter);
 325                 }
 326                 g_object_unref (iter);
 327                 g_object_unref (parts);
 328         }
 329
 330         if (related_part != NULL) {
 331                 /* TODO: attach images in their proper place */
 332                 add_attachments (related_part, images_list, TRUE);
 333         }
 334 }
 335
 336
 337 gchar *
 338 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html, gboolean *is_html)
 339 {
 340         TnyStream *stream;
 341         TnyMimePart *body;
 342         GtkTextBuffer *buf;
 343         GtkTextIter start, end;
 344         gchar *to_quote;
 345         gboolean result_was_html = TRUE;
 346
 347         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 348
 349         body = modest_tny_msg_find_body_part(msg, want_html);
 350         if (!body)
 351                 return NULL;
 352
 353         buf = gtk_text_buffer_new (NULL);
 354         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 355         tny_stream_reset (stream);
 356         tny_mime_part_decode_to_stream (body, stream);
 357         tny_stream_reset (stream);
 358
 359         gtk_text_buffer_get_bounds (buf, &start, &end);
 360         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 361         if (tny_mime_part_content_type_is (body, "text/plain")) {
 362                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 363                 g_free (to_quote);
 364                 to_quote = to_quote_converted;
 365                 result_was_html = FALSE;
 366         }
 367
 368         g_object_unref (buf);
 369         g_object_unref (G_OBJECT(stream));
 370         g_object_unref (G_OBJECT(body));
 371
 372         if (is_html != NULL)
 373                 *is_html = result_was_html;
 374
 375         return to_quote;
 376 }
 377
 378
 379 TnyMimePart*
 380 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 381 {
 382         const gchar *desired_mime_type = want_html ? "text/html" : "text/plain";
 383         TnyMimePart *part = NULL;
 384         TnyList *parts = NULL;
 385         TnyIterator *iter = NULL;
 386
 387         if (!msg)
 388                 return NULL;
 389
 390         parts = TNY_LIST (tny_simple_list_new());
 391         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 392
 393         iter  = tny_list_create_iterator(parts);
 394
 395         /* no parts? assume it's single-part message */
 396         if (tny_iterator_is_done(iter)) {
 397                 g_object_unref (G_OBJECT(iter));
 398                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 399         } else {
 400                 do {
 401                         gchar *content_type = NULL;
 402
 403                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 404
 405                         if (!part) {
 406                                 g_warning ("%s: not a valid mime part", __FUNCTION__);
 407                                 continue;
 408                         }
 409
 410                         /* it's a message --> ignore */
 411                         if (part && TNY_IS_MSG (part)) {
 412                                 g_object_unref (part);
 413                                 tny_iterator_next (iter);
 414                                 continue;
 415                         }
 416
 417
 418                         /* we need to strdown the content type, because
 419                          * tny_mime_part_has_content_type does not do it...
 420                          */
 421                         content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 422
 423                         if (g_str_has_prefix (content_type, desired_mime_type) && !tny_mime_part_is_attachment (part)) {
 424                                 /* we found the desired mime-type! */
 425                                 g_free (content_type);
 426                                 break;
 427
 428                         } else  if (g_str_has_prefix(content_type, "multipart")) {
 429
 430                                 /* multipart? recurse! */
 431                                 g_object_unref (part);
 432                                 g_free (content_type);
 433                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 434                                 if (part)
 435                                         break;
 436                         } else
 437                                 g_free (content_type);
 438
 439                         if (part) {
 440                                 g_object_unref (G_OBJECT(part));
 441                                 part = NULL;
 442                         }
 443
 444                         tny_iterator_next (iter);
 445
 446                 } while (!tny_iterator_is_done(iter));
 447         }
 448
 449         g_object_unref (G_OBJECT(iter));
 450         g_object_unref (G_OBJECT(parts));
 451
 452         /* if were trying to find an HTML part and couldn't find it,
 453          * try to find a text/plain part instead
 454          */
 455         if (!part && want_html)
 456                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 457         else
 458                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 459                               * part */
 460 }
 461
 462
 463 TnyMimePart*
 464 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 465 {
 466         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 467
 468         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 469                                                              want_html);
 470 }
 471
 472
 473 #define MODEST_TNY_MSG_PARENT_UID "parent-uid"
 474
 475 static TnyMsg *
 476 create_reply_forward_mail (TnyMsg *msg, TnyHeader *header, const gchar *from,
 477                            const gchar *signature, gboolean is_reply,
 478                            guint type /*ignored*/, GList *attachments)
 479 {
 480         TnyMsg *new_msg;
 481         TnyHeader *new_header;
 482         gchar *new_subject;
 483         TnyMimePart *body = NULL;
 484         ModestFormatter *formatter;
 485         gchar *subject_prefix;
 486         gboolean no_text_part;
 487
 488         if (header)
 489                 g_object_ref (header);
 490         else
 491                 header = tny_msg_get_header (msg);
 492
 493         /* Get body from original msg. Always look for the text/plain
 494            part of the message to create the reply/forwarded mail */
 495         if (msg != NULL)
 496                 body   = modest_tny_msg_find_body_part (msg, FALSE);
 497
 498         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT,
 499                                   NULL))
 500                 formatter = modest_formatter_new ("text/html", signature);
 501         else
 502                 formatter = modest_formatter_new ("text/plain", signature);
 503
 504
 505         /* if we don't have a text-part */
 506         no_text_part = (!body) || (strcmp (tny_mime_part_get_content_type (body), "text/html")==0);
 507
 508         /* when we're reply, include the text part if we have it, or nothing otherwise. */
 509         if (is_reply)
 510                 new_msg = modest_formatter_quote  (formatter, no_text_part ? NULL: body, header,
 511                                                     attachments);
 512         else {
 513                 /* for attachements; inline if there is a text part, and include the
 514                  * full old mail if there was none */
 515                 if (no_text_part)
 516                         new_msg = modest_formatter_attach (formatter, msg, header);
 517                 else
 518                         new_msg = modest_formatter_inline  (formatter, body, header,
 519                                                             attachments);
 520         }
 521
 522         g_object_unref (G_OBJECT(formatter));
 523         if (body)
 524                 g_object_unref (G_OBJECT(body));
 525
 526         /* Fill the header */
 527         new_header = tny_msg_get_header (new_msg);
 528         tny_header_set_from (new_header, from);
 529         tny_header_set_replyto (new_header, from);
 530
 531         /* Change the subject */
 532         if (is_reply)
 533                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 534         else
 535                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 536         new_subject =
 537                 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
 538                                                              subject_prefix);
 539         g_free (subject_prefix);
 540         tny_header_set_subject (new_header, (const gchar *) new_subject);
 541         g_free (new_subject);
 542
 543         /* get the parent uid, and set it as a gobject property on the new msg */
 544         if (new_msg) {
 545                 gchar* parent_uid = modest_tny_folder_get_header_unique_id (header);
 546                 g_object_set_data_full (G_OBJECT(new_msg), MODEST_TNY_MSG_PARENT_UID,
 547                                         parent_uid, g_free);
 548         }
 549
 550         /* set modest as the X-Mailer
 551          * we could this in the platform factory, but then the header
 552          * would show up before all the others.
 553          */
 554         tny_mime_part_set_header_pair (TNY_MIME_PART (msg), "X-Mailer", "Modest "
 555                                        VERSION);
 556
 557         /* Clean */
 558         g_object_unref (G_OBJECT (new_header));
 559         g_object_unref (G_OBJECT (header));
 560         /* ugly to unref it here instead of in the calling func */
 561
 562         return new_msg;
 563 }
 564
 565 const gchar*
 566 modest_tny_msg_get_parent_uid (TnyMsg *msg)
 567 {
 568         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 569
 570         return g_object_get_data (G_OBJECT(msg), MODEST_TNY_MSG_PARENT_UID);
 571 }
 572
 573
 574
 575 static void
 576 add_if_attachment (gpointer data, gpointer user_data)
 577 {
 578         TnyMimePart *part;
 579         GList **attachments_list;
 580
 581         part = TNY_MIME_PART (data);
 582         attachments_list = ((GList **) user_data);
 583
 584         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 585                 *attachments_list = g_list_prepend (*attachments_list, part);
 586                 g_object_ref (part);
 587         }
 588 }
 589
 590 TnyMsg*
 591 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 592                                    const gchar *from,
 593                                    const gchar *signature,
 594                                    ModestTnyMsgForwardType forward_type)
 595 {
 596         TnyMsg *new_msg;
 597         TnyList *parts = NULL;
 598         GList *attachments_list = NULL;
 599
 600         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 601
 602         /* Add attachments */
 603         parts = TNY_LIST (tny_simple_list_new());
 604         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 605         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 606
 607         new_msg = create_reply_forward_mail (msg, NULL, from, signature, FALSE, forward_type,
 608                                              attachments_list);
 609         add_attachments (TNY_MIME_PART (new_msg), attachments_list, FALSE);
 610
 611         /* Clean */
 612         if (attachments_list)
 613                 g_list_free (attachments_list);
 614         g_object_unref (G_OBJECT (parts));
 615
 616         return new_msg;
 617 }
 618
 619 TnyMsg*
 620 modest_tny_msg_create_reply_msg (TnyMsg *msg,
 621                                  TnyHeader *header,
 622                                  const gchar *from,
 623                                  const gchar *signature,
 624                                  ModestTnyMsgReplyType reply_type,
 625                                  ModestTnyMsgReplyMode reply_mode)
 626 {
 627         TnyMsg *new_msg = NULL;
 628         TnyHeader *new_header;
 629         const gchar* reply_to;
 630         gchar *new_cc = NULL;
 631         const gchar *cc = NULL, *bcc = NULL;
 632         GString *tmp = NULL;
 633         TnyList *parts = NULL;
 634         GList *attachments_list = NULL;
 635
 636         g_return_val_if_fail (msg && TNY_IS_MSG(msg), NULL);
 637
 638         /* Add attachments */
 639         if (msg != NULL) {
 640                 parts = TNY_LIST (tny_simple_list_new());
 641                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 642                 tny_list_foreach (parts, add_if_attachment, &attachments_list);
 643         }
 644
 645         new_msg = create_reply_forward_mail (msg, header, from, signature, TRUE, reply_type,
 646                                              attachments_list);
 647         if (attachments_list) {
 648                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 649                 g_list_free (attachments_list);
 650         }
 651         if (parts)
 652                 g_object_unref (G_OBJECT (parts));
 653
 654         /* Fill the header */
 655         if (header)
 656                 g_object_ref (header);
 657         else
 658                 header = tny_msg_get_header (msg);
 659
 660         new_header = tny_msg_get_header (new_msg);
 661         reply_to = tny_header_get_replyto (header);
 662
 663         if (reply_to)
 664                 tny_header_set_to (new_header, reply_to);
 665         else
 666                 tny_header_set_to (new_header, tny_header_get_from (header));
 667
 668         switch (reply_mode) {
 669         case MODEST_TNY_MSG_REPLY_MODE_SENDER:
 670                 /* Do not fill neither cc nor bcc */
 671                 break;
 672         case MODEST_TNY_MSG_REPLY_MODE_LIST:
 673                 /* TODO */
 674                 break;
 675         case MODEST_TNY_MSG_REPLY_MODE_ALL:
 676                 /* Concatenate to, cc and bcc */
 677                 cc = tny_header_get_cc (header);
 678                 bcc = tny_header_get_bcc (header);
 679
 680                 tmp = g_string_new (tny_header_get_to (header));
 681                 if (cc)
 682                         g_string_append_printf (tmp, ",%s",cc);
 683                 if (bcc)
 684                         g_string_append_printf (tmp, ",%s",bcc);
 685
 686                /* Remove my own address from the cc list. TODO:
 687                   remove also the To: of the new message, needed due
 688                   to the new reply_to feature */
 689                 new_cc = (gchar *)
 690                         modest_text_utils_remove_address ((const gchar *) tmp->str,
 691                                                           from);
 692                 /* FIXME: remove also the mails from the new To: */
 693                 tny_header_set_cc (new_header, new_cc);
 694
 695                 /* Clean */
 696                 g_string_free (tmp, TRUE);
 697                 g_free (new_cc);
 698                 break;
 699         }
 700
 701         /* Clean */
 702         g_object_unref (G_OBJECT (new_header));
 703         g_object_unref (G_OBJECT (header));
 704
 705         return new_msg;
 706 }
 707
 708
 709 static gboolean
 710 is_ascii(const gchar *s)
 711 {
 712         if (!s)
 713                 return TRUE;
 714         while (s[0]) {
 715                 if (s[0] & 128 || s[0] < 32)
 716                         return FALSE;
 717                 s++;
 718         }
 719         return TRUE;
 720 }
 721
 722 static char *
 723 get_content_type(const gchar *s)
 724 {
 725         GString *type;
 726
 727         type = g_string_new("text/plain");
 728         if (!is_ascii(s)) {
 729                 if (g_utf8_validate(s, -1, NULL)) {
 730                         g_string_append(type, "; charset=\"utf-8\"");
 731                 } else {
 732                         /* it should be impossible to reach this, but better safe than sorry */
 733                         g_warning("invalid utf8 in message");
 734                         g_string_append(type, "; charset=\"latin1\"");
 735                 }
 736         }
 737         return g_string_free(type, FALSE);
 738 }