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)
 278 {
 279         TnyStream *stream;
 280         TnyMimePart *body;
 281         GtkTextBuffer *buf;
 282         GtkTextIter start, end;
 283         gchar *to_quote;
 284
 285         body = modest_tny_msg_find_body_part(msg, want_html);
 286         if (!body)
 287                 return NULL;
 288
 289         buf = gtk_text_buffer_new (NULL);
 290         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 291         tny_stream_reset (stream);
 292         tny_mime_part_decode_to_stream (body, stream);
 293         tny_stream_reset (stream);
 294
 295         gtk_text_buffer_get_bounds (buf, &start, &end);
 296         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 297         if (tny_mime_part_content_type_is (body, "text/plain")) {
 298                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 299                 g_free (to_quote);
 300                 to_quote = to_quote_converted;
 301         }
 302
 303         g_object_unref (buf);
 304         g_object_unref (G_OBJECT(stream));
 305         g_object_unref (G_OBJECT(body));
 306
 307         return to_quote;
 308 }
 309
 310
 311 TnyMimePart*
 312 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 313 {
 314         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 315         TnyMimePart *part = NULL;
 316         TnyList *parts = NULL;
 317         TnyIterator *iter = NULL;
 318
 319         if (!msg)
 320                 return NULL;
 321
 322         parts = TNY_LIST (tny_simple_list_new());
 323         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 324
 325         iter  = tny_list_create_iterator(parts);
 326
 327         /* no parts? assume it's single-part message */
 328         if (tny_iterator_is_done(iter)) {
 329                 g_object_unref (G_OBJECT(iter));
 330                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 331         } else {
 332                 gchar *content_type = NULL;
 333                 do {
 334                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 335                         if (part && TNY_IS_MSG (part)) {
 336                                 g_object_unref (part);
 337                                 tny_iterator_next (iter);
 338                                 continue;
 339                         }
 340
 341                         /* we need to strdown the content type, because
 342                          * tny_mime_part_has_content_type does not do it...
 343                          */
 344                         if (part) {
 345                                 content_type = g_ascii_strdown
 346                                         (tny_mime_part_get_content_type (part), -1);
 347                         }
 348
 349                         if (g_str_has_prefix (content_type, mime_type) &&
 350                             !tny_mime_part_is_attachment (part))
 351                                 break;
 352
 353                         if (g_str_has_prefix(content_type, "multipart")) {
 354                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 355                                 if (part)
 356                                         break;
 357                         }
 358
 359                         if (part)
 360                                 g_object_unref (G_OBJECT(part));
 361
 362                         part = NULL;
 363
 364                         g_free (content_type);
 365                         content_type = NULL;
 366
 367                         tny_iterator_next (iter);
 368
 369                 } while (!tny_iterator_is_done(iter));
 370                 g_free (content_type);
 371         }
 372
 373         g_object_unref (G_OBJECT(iter));
 374         g_object_unref (G_OBJECT(parts));
 375
 376         /* if were trying to find an HTML part and couldn't find it,
 377          * try to find a text/plain part instead
 378          */
 379         if (!part && want_html)
 380                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 381         else
 382                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 383                               * part */
 384 }
 385
 386
 387 TnyMimePart*
 388 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 389 {
 390         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 391                                                              want_html);
 392 }
 393
 394
 395 static TnyMsg *
 396 create_reply_forward_mail (TnyMsg *msg, const gchar *from, const gchar *signature,
 397                            gboolean is_reply, guint type, GList *attachments)
 398 {
 399         TnyMsg *new_msg;
 400         TnyHeader *new_header, *header;
 401         gchar *new_subject;
 402         TnyMimePart *body;
 403         ModestFormatter *formatter;
 404         gchar *subject_prefix;
 405
 406         /* Get body from original msg. Always look for the text/plain
 407            part of the message to create the reply/forwarded mail */
 408         header = tny_msg_get_header (msg);
 409         body   = modest_tny_msg_find_body_part (msg, FALSE);
 410
 411         /* TODO: select the formatter from account prefs */
 412         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT, NULL))
 413                 formatter = modest_formatter_new ("text/html", signature);
 414         else
 415                 formatter = modest_formatter_new ("text/plain", signature);
 416
 417         /* Format message body */
 418         if (is_reply) {
 419                 switch (type) {
 420                 case MODEST_TNY_MSG_REPLY_TYPE_CITE:
 421                 default:
 422                         new_msg = modest_formatter_cite  (formatter, body, header);
 423                         break;
 424                 case MODEST_TNY_MSG_REPLY_TYPE_QUOTE:
 425                         new_msg = modest_formatter_quote (formatter, body, header, attachments);
 426                         break;
 427                 }
 428         } else {
 429                 switch (type) {
 430                 case MODEST_TNY_MSG_FORWARD_TYPE_INLINE:
 431                 default:
 432                         new_msg = modest_formatter_inline  (formatter, body, header, attachments);
 433                         break;
 434                 case MODEST_TNY_MSG_FORWARD_TYPE_ATTACHMENT:
 435                         new_msg = modest_formatter_attach (formatter, body, header);
 436                         break;
 437                 }
 438         }
 439         g_object_unref (G_OBJECT(formatter));
 440         g_object_unref (G_OBJECT(body));
 441
 442         /* Fill the header */
 443         new_header = tny_msg_get_header (new_msg);
 444         tny_header_set_from (new_header, from);
 445         tny_header_set_replyto (new_header, from);
 446
 447         /* Change the subject */
 448         if (is_reply)
 449                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 450         else
 451                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 452         new_subject =
 453                 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
 454                                                              subject_prefix);
 455         g_free (subject_prefix);
 456         tny_header_set_subject (new_header, (const gchar *) new_subject);
 457         g_free (new_subject);
 458
 459         /* Clean */
 460         g_object_unref (G_OBJECT (new_header));
 461         g_object_unref (G_OBJECT (header));
 462
 463         return new_msg;
 464 }
 465
 466 static void
 467 add_if_attachment (gpointer data, gpointer user_data)
 468 {
 469         TnyMimePart *part;
 470         GList **attachments_list;
 471
 472         part = TNY_MIME_PART (data);
 473         attachments_list = ((GList **) user_data);
 474
 475         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part))) {
 476                 *attachments_list = g_list_prepend (*attachments_list, part);
 477                 g_object_ref (part);
 478         }
 479 }
 480
 481 TnyMsg*
 482 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 483                                    const gchar *from,
 484                                    const gchar *signature,
 485                                    ModestTnyMsgForwardType forward_type)
 486 {
 487         TnyMsg *new_msg;
 488         TnyList *parts = NULL;
 489         GList *attachments_list = NULL;
 490
 491         /* Add attachments */
 492         parts = TNY_LIST (tny_simple_list_new());
 493         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 494         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 495
 496         new_msg = create_reply_forward_mail (msg, from, signature, FALSE, forward_type, attachments_list);
 497         add_attachments (new_msg, attachments_list);
 498
 499         /* Clean */
 500         if (attachments_list)
 501                 g_list_free (attachments_list);
 502         g_object_unref (G_OBJECT (parts));
 503
 504         return new_msg;
 505 }
 506
 507 TnyMsg*
 508 modest_tny_msg_create_reply_msg (TnyMsg *msg,
 509                                  const gchar *from,
 510                                  const gchar *signature,
 511                                  ModestTnyMsgReplyType reply_type,
 512                                  ModestTnyMsgReplyMode reply_mode)
 513 {
 514         TnyMsg *new_msg = NULL;
 515         TnyHeader *new_header, *header;
 516         const gchar* reply_to;
 517         gchar *new_cc = NULL;
 518         const gchar *cc = NULL, *bcc = NULL;
 519         GString *tmp = NULL;
 520         TnyList *parts = NULL;
 521         GList *attachments_list = NULL;
 522
 523         /* Add attachments */
 524         parts = TNY_LIST (tny_simple_list_new());
 525         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 526         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 527
 528         new_msg = create_reply_forward_mail (msg, from, signature, TRUE, reply_type, attachments_list);
 529         if (attachments_list) {
 530                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 531                 g_list_free (attachments_list);
 532         }
 533         g_object_unref (G_OBJECT (parts));
 534
 535         /* Fill the header */
 536         header = tny_msg_get_header (msg);
 537         new_header = tny_msg_get_header (new_msg);
 538         reply_to = tny_header_get_replyto (header);
 539
 540         if (reply_to)
 541                 tny_header_set_to (new_header, reply_to);
 542         else
 543                 tny_header_set_to (new_header, tny_header_get_from (header));
 544
 545         switch (reply_mode) {
 546         case MODEST_TNY_MSG_REPLY_MODE_SENDER:
 547                 /* Do not fill neither cc nor bcc */
 548                 break;
 549         case MODEST_TNY_MSG_REPLY_MODE_LIST:
 550                 /* TODO */
 551                 break;
 552         case MODEST_TNY_MSG_REPLY_MODE_ALL:
 553                 /* Concatenate to, cc and bcc */
 554                 cc = tny_header_get_cc (header);
 555                 bcc = tny_header_get_bcc (header);
 556
 557                 tmp = g_string_new (tny_header_get_to (header));
 558                 if (cc)  g_string_append_printf (tmp, ",%s",cc);
 559                 if (bcc) g_string_append_printf (tmp, ",%s",bcc);
 560
 561                /* Remove my own address from the cc list. TODO:
 562                   remove also the To: of the new message, needed due
 563                   to the new reply_to feature */
 564                 new_cc = (gchar *)
 565                         modest_text_utils_remove_address ((const gchar *) tmp->str,
 566                                                           from);
 567                 /* FIXME: remove also the mails from the new To: */
 568                 tny_header_set_cc (new_header, new_cc);
 569
 570                 /* Clean */
 571                 g_string_free (tmp, TRUE);
 572                 g_free (new_cc);
 573                 break;
 574         }
 575
 576         /* Clean */
 577         g_object_unref (G_OBJECT (new_header));
 578         g_object_unref (G_OBJECT (header));
 579
 580         return new_msg;
 581 }
 582
 583
 584 static gboolean
 585 is_ascii(const gchar *s)
 586 {
 587         if (!s)
 588                 return TRUE;
 589         while (s[0]) {
 590                 if (s[0] & 128 || s[0] < 32)
 591                         return FALSE;
 592                 s++;
 593         }
 594         return TRUE;
 595 }
 596
 597 static char *
 598 get_content_type(const gchar *s)
 599 {
 600         GString *type;
 601
 602         type = g_string_new("text/plain");
 603         if (!is_ascii(s)) {
 604                 if (g_utf8_validate(s, -1, NULL)) {
 605                         g_string_append(type, "; charset=\"utf-8\"");
 606                 } else {
 607                         /* it should be impossible to reach this, but better safe than sorry */
 608                         g_warning("invalid utf8 in message");
 609                         g_string_append(type, "; charset=\"latin1\"");
 610                 }
 611         }
 612         return g_string_free(type, FALSE);
 613 }