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                 TnyMimePart *subpart_copy = copy_mime_part (subpart);
 246                 tny_mime_part_add_part (result, subpart_copy);
 247                 g_object_unref (subpart);
 248                 tny_iterator_next (iterator);
 249         }
 250         g_object_unref (iterator);
 251         g_object_unref (parts);
 252         g_object_unref (attachment_stream);
 253
 254         return result;
 255 }
 256
 257 static void
 258 add_attachments (TnyMsg *msg, GList *attachments_list)
 259 {
 260         GList *pos;
 261         TnyMimePart *attachment_part, *old_attachment;
 262
 263         for (pos = (GList *)attachments_list; pos; pos = pos->next) {
 264
 265                 old_attachment = pos->data;
 266                 attachment_part = copy_mime_part (old_attachment);
 267                 tny_mime_part_add_part (TNY_MIME_PART (msg), attachment_part);
 268                 g_object_unref (attachment_part);
 269         }
 270 }
 271
 272
 273 gchar *
 274 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html)
 275 {
 276         TnyStream *stream;
 277         TnyMimePart *body;
 278         GtkTextBuffer *buf;
 279         GtkTextIter start, end;
 280         gchar *to_quote;
 281
 282         body = modest_tny_msg_find_body_part(msg, want_html);
 283         if (!body)
 284                 return NULL;
 285
 286         buf = gtk_text_buffer_new (NULL);
 287         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 288         tny_stream_reset (stream);
 289         tny_mime_part_decode_to_stream (body, stream);
 290         tny_stream_reset (stream);
 291
 292         gtk_text_buffer_get_bounds (buf, &start, &end);
 293         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 294         if (tny_mime_part_content_type_is (body, "text/plain")) {
 295                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 296                 g_free (to_quote);
 297                 to_quote = to_quote_converted;
 298         }
 299
 300         g_object_unref (buf);
 301         g_object_unref (G_OBJECT(stream));
 302         g_object_unref (G_OBJECT(body));
 303
 304         return to_quote;
 305 }
 306
 307
 308 TnyMimePart*
 309 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 310 {
 311         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 312         TnyMimePart *part = NULL;
 313         TnyList *parts;
 314         TnyIterator *iter;
 315
 316         if (!msg)
 317                 return NULL;
 318
 319         parts = TNY_LIST (tny_simple_list_new());
 320         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 321
 322         iter  = tny_list_create_iterator(parts);
 323
 324         /* no parts? assume it's single-part message */
 325         if (tny_iterator_is_done(iter)) {
 326                 g_object_unref (G_OBJECT(iter));
 327                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 328         } else {
 329                 gchar *content_type = NULL;
 330                 do {
 331                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 332                         if (TNY_IS_MSG (part)) {
 333                                 g_object_unref (part);
 334                                 tny_iterator_next (iter);
 335                                 continue;
 336                         }
 337
 338                         /* we need to strdown the content type, because
 339                          * tny_mime_part_has_content_type does not do it...
 340                          */
 341                         content_type = g_ascii_strdown
 342                                 (tny_mime_part_get_content_type (part), -1);
 343
 344                         if (g_str_has_prefix (content_type, mime_type) &&
 345                             !tny_mime_part_is_attachment (part))
 346                                 break;
 347
 348                         if (g_str_has_prefix(content_type, "multipart")) {
 349                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 350                                 if (part)
 351                                         break;
 352                         }
 353                         if (part)
 354                                 g_object_unref (G_OBJECT(part));
 355
 356                         part = NULL;
 357
 358                         g_free (content_type);
 359                         content_type = NULL;
 360
 361                         tny_iterator_next (iter);
 362
 363                 } while (!tny_iterator_is_done(iter));
 364                 g_free (content_type);
 365         }
 366
 367         g_object_unref (G_OBJECT(iter));
 368         g_object_unref (G_OBJECT(parts));
 369
 370         /* if were trying to find an HTML part and couldn't find it,
 371          * try to find a text/plain part instead
 372          */
 373         if (!part && want_html)
 374                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 375         else
 376                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 377                               * part */
 378 }
 379
 380
 381 TnyMimePart*
 382 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 383 {
 384         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 385                                                              want_html);
 386 }
 387
 388
 389 static TnyMsg *
 390 create_reply_forward_mail (TnyMsg *msg, const gchar *from, const gchar *signature,
 391                            gboolean is_reply, guint type, GList *attachments)
 392 {
 393         TnyMsg *new_msg;
 394         TnyHeader *new_header, *header;
 395         gchar *new_subject;
 396         TnyMimePart *body;
 397         ModestFormatter *formatter;
 398         gchar *subject_prefix;
 399
 400         /* Get body from original msg. Always look for the text/plain
 401            part of the message to create the reply/forwarded mail */
 402         header = tny_msg_get_header (msg);
 403         body   = modest_tny_msg_find_body_part (msg, FALSE);
 404
 405         /* TODO: select the formatter from account prefs */
 406         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT, NULL))
 407                 formatter = modest_formatter_new ("text/html", signature);
 408         else
 409                 formatter = modest_formatter_new ("text/plain", signature);
 410
 411         /* Format message body */
 412         if (is_reply) {
 413                 switch (type) {
 414                 case MODEST_TNY_MSG_REPLY_TYPE_CITE:
 415                 default:
 416                         new_msg = modest_formatter_cite  (formatter, body, header);
 417                         break;
 418                 case MODEST_TNY_MSG_REPLY_TYPE_QUOTE:
 419                         new_msg = modest_formatter_quote (formatter, body, header, attachments);
 420                         break;
 421                 }
 422         } else {
 423                 switch (type) {
 424                 case MODEST_TNY_MSG_FORWARD_TYPE_INLINE:
 425                 default:
 426                         new_msg = modest_formatter_inline  (formatter, body, header, attachments);
 427                         break;
 428                 case MODEST_TNY_MSG_FORWARD_TYPE_ATTACHMENT:
 429                         new_msg = modest_formatter_attach (formatter, body, header);
 430                         break;
 431                 }
 432         }
 433         g_object_unref (G_OBJECT(formatter));
 434         g_object_unref (G_OBJECT(body));
 435
 436         /* Fill the header */
 437         new_header = tny_msg_get_header (new_msg);
 438         tny_header_set_from (new_header, from);
 439         tny_header_set_replyto (new_header, from);
 440
 441         /* Change the subject */
 442         if (is_reply)
 443                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 444         else
 445                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 446         new_subject =
 447                 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
 448                                                              subject_prefix);
 449         g_free (subject_prefix);
 450         tny_header_set_subject (new_header, (const gchar *) new_subject);
 451         g_free (new_subject);
 452
 453         /* Clean */
 454         g_object_unref (G_OBJECT (new_header));
 455         g_object_unref (G_OBJECT (header));
 456
 457         return new_msg;
 458 }
 459
 460 static void
 461 add_if_attachment (gpointer data, gpointer user_data)
 462 {
 463         TnyMimePart *part;
 464         GList **attachments_list;
 465
 466         part = TNY_MIME_PART (data);
 467         attachments_list = ((GList **) user_data);
 468
 469         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 470                 *attachments_list = g_list_prepend (*attachments_list, part);
 471                 g_object_ref (part);
 472         }
 473 }
 474
 475 TnyMsg*
 476 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 477                                    const gchar *from,
 478                                    const gchar *signature,
 479                                    ModestTnyMsgForwardType forward_type)
 480 {
 481         TnyMsg *new_msg;
 482         TnyList *parts = NULL;
 483         GList *attachments_list = NULL;
 484
 485         /* Add attachments */
 486         parts = TNY_LIST (tny_simple_list_new());
 487         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 488         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 489
 490         new_msg = create_reply_forward_mail (msg, from, signature, FALSE, forward_type, attachments_list);
 491         add_attachments (new_msg, attachments_list);
 492
 493         /* Clean */
 494         if (attachments_list)
 495                 g_list_free (attachments_list);
 496         g_object_unref (G_OBJECT (parts));
 497
 498         return new_msg;
 499 }
 500
 501 TnyMsg*
 502 modest_tny_msg_create_reply_msg (TnyMsg *msg,
 503                                  const gchar *from,
 504                                  const gchar *signature,
 505                                  ModestTnyMsgReplyType reply_type,
 506                                  ModestTnyMsgReplyMode reply_mode)
 507 {
 508         TnyMsg *new_msg = NULL;
 509         TnyHeader *new_header, *header;
 510         const gchar* reply_to;
 511         gchar *new_cc = NULL;
 512         const gchar *cc = NULL, *bcc = NULL;
 513         GString *tmp = NULL;
 514         TnyList *parts = NULL;
 515         GList *attachments_list = NULL;
 516
 517         /* Add attachments */
 518         parts = TNY_LIST (tny_simple_list_new());
 519         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 520         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 521
 522         new_msg = create_reply_forward_mail (msg, from, signature, TRUE, reply_type, attachments_list);
 523         if (attachments_list) {
 524                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 525                 g_list_free (attachments_list);
 526         }
 527         g_object_unref (G_OBJECT (parts));
 528
 529         /* Fill the header */
 530         header = tny_msg_get_header (msg);
 531         new_header = tny_msg_get_header (new_msg);
 532         reply_to = tny_header_get_replyto (header);
 533
 534         if (reply_to)
 535                 tny_header_set_to (new_header, reply_to);
 536         else
 537                 tny_header_set_to (new_header, tny_header_get_from (header));
 538
 539         switch (reply_mode) {
 540         case MODEST_TNY_MSG_REPLY_MODE_SENDER:
 541                 /* Do not fill neither cc nor bcc */
 542                 break;
 543         case MODEST_TNY_MSG_REPLY_MODE_LIST:
 544                 /* TODO */
 545                 break;
 546         case MODEST_TNY_MSG_REPLY_MODE_ALL:
 547                 /* Concatenate to, cc and bcc */
 548                 cc = tny_header_get_cc (header);
 549                 bcc = tny_header_get_bcc (header);
 550
 551                 tmp = g_string_new (tny_header_get_to (header));
 552                 if (cc)  g_string_append_printf (tmp, ",%s",cc);
 553                 if (bcc) g_string_append_printf (tmp, ",%s",bcc);
 554
 555                /* Remove my own address from the cc list. TODO:
 556                   remove also the To: of the new message, needed due
 557                   to the new reply_to feature */
 558                 new_cc = (gchar *)
 559                         modest_text_utils_remove_address ((const gchar *) tmp->str,
 560                                                           from);
 561                 /* FIXME: remove also the mails from the new To: */
 562                 tny_header_set_cc (new_header, new_cc);
 563
 564                 /* Clean */
 565                 g_string_free (tmp, TRUE);
 566                 g_free (new_cc);
 567                 break;
 568         }
 569
 570         /* Clean */
 571         g_object_unref (G_OBJECT (new_header));
 572         g_object_unref (G_OBJECT (header));
 573
 574         return new_msg;
 575 }
 576
 577
 578 static gboolean
 579 is_ascii(const gchar *s)
 580 {
 581         if (!s)
 582                 return TRUE;
 583         while (s[0]) {
 584                 if (s[0] & 128 || s[0] < 32)
 585                         return FALSE;
 586                 s++;
 587         }
 588         return TRUE;
 589 }
 590
 591 static char *
 592 get_content_type(const gchar *s)
 593 {
 594         GString *type;
 595
 596         type = g_string_new("text/plain");
 597         if (!is_ascii(s)) {
 598                 if (g_utf8_validate(s, -1, NULL)) {
 599                         g_string_append(type, "; charset=\"utf-8\"");
 600                 } else {
 601                         /* it should be impossible to reach this, but better safe than sorry */
 602                         g_warning("invalid utf8 in message");
 603                         g_string_append(type, "; charset=\"latin1\"");
 604                 }
 605         }
 606         return g_string_free(type, FALSE);
 607 }