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