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                 result = TNY_MIME_PART (tny_platform_factory_new_msg (modest_runtime_get_platform_factory ()));
 215                 attachment_content_type = "message/rfc822";
 216                 tny_mime_part_set_content_type (result, attachment_content_type);
 217         } else {
 218                 result = tny_platform_factory_new_mime_part (
 219                         modest_runtime_get_platform_factory());
 220                 attachment_content_type = tny_mime_part_get_content_type (part);
 221         }
 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         }
 269 }
 270
 271
 272 gchar *
 273 modest_tny_msg_get_body (TnyMsg *msg, gboolean want_html)
 274 {
 275         TnyStream *stream;
 276         TnyMimePart *body;
 277         GtkTextBuffer *buf;
 278         GtkTextIter start, end;
 279         gchar *to_quote;
 280
 281         body = modest_tny_msg_find_body_part(msg, want_html);
 282         if (!body)
 283                 return NULL;
 284
 285         buf = gtk_text_buffer_new (NULL);
 286         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
 287         tny_stream_reset (stream);
 288         tny_mime_part_decode_to_stream (body, stream);
 289         tny_stream_reset (stream);
 290
 291         gtk_text_buffer_get_bounds (buf, &start, &end);
 292         to_quote = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
 293         if (tny_mime_part_content_type_is (body, "text/plain")) {
 294                 gchar *to_quote_converted = modest_text_utils_convert_to_html (to_quote);
 295                 g_free (to_quote);
 296                 to_quote = to_quote_converted;
 297         }
 298
 299         g_object_unref (buf);
 300         g_object_unref (G_OBJECT(stream));
 301         g_object_unref (G_OBJECT(body));
 302
 303         return to_quote;
 304 }
 305
 306
 307 TnyMimePart*
 308 modest_tny_msg_find_body_part_from_mime_part (TnyMimePart *msg, gboolean want_html)
 309 {
 310         const gchar *mime_type = want_html ? "text/html" : "text/plain";
 311         TnyMimePart *part = NULL;
 312         TnyList *parts;
 313         TnyIterator *iter;
 314
 315         if (!msg)
 316                 return NULL;
 317
 318         parts = TNY_LIST (tny_simple_list_new());
 319         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 320
 321         iter  = tny_list_create_iterator(parts);
 322
 323         /* no parts? assume it's single-part message */
 324         if (tny_iterator_is_done(iter)) {
 325                 g_object_unref (G_OBJECT(iter));
 326                 return TNY_MIME_PART (g_object_ref(G_OBJECT(msg)));
 327         } else {
 328                 gchar *content_type = NULL;
 329                 do {
 330                         part = TNY_MIME_PART(tny_iterator_get_current (iter));
 331
 332                         /* we need to strdown the content type, because
 333                          * tny_mime_part_has_content_type does not do it...
 334                          */
 335                         content_type = g_ascii_strdown
 336                                 (tny_mime_part_get_content_type (part), -1);
 337
 338                         if (g_str_has_prefix (content_type, mime_type) &&
 339                             !tny_mime_part_is_attachment (part))
 340                                 break;
 341
 342                         if (g_str_has_prefix(content_type, "multipart")) {
 343                                 part = modest_tny_msg_find_body_part_from_mime_part (part, want_html);
 344                                 if (part)
 345                                         break;
 346                         }
 347                         if (part)
 348                                 g_object_unref (G_OBJECT(part));
 349
 350                         part = NULL;
 351
 352                         g_free (content_type);
 353                         content_type = NULL;
 354
 355                         tny_iterator_next (iter);
 356
 357                 } while (!tny_iterator_is_done(iter));
 358                 g_free (content_type);
 359         }
 360
 361         g_object_unref (G_OBJECT(iter));
 362         g_object_unref (G_OBJECT(parts));
 363
 364         /* if were trying to find an HTML part and couldn't find it,
 365          * try to find a text/plain part instead
 366          */
 367         if (!part && want_html)
 368                 return modest_tny_msg_find_body_part_from_mime_part (msg, FALSE);
 369         else
 370                 return part; /* this maybe NULL, this is not an error; some message just don't have a body
 371                               * part */
 372 }
 373
 374
 375 TnyMimePart*
 376 modest_tny_msg_find_body_part (TnyMsg *msg, gboolean want_html)
 377 {
 378         return modest_tny_msg_find_body_part_from_mime_part (TNY_MIME_PART(msg),
 379                                                              want_html);
 380 }
 381
 382
 383 static TnyMsg *
 384 create_reply_forward_mail (TnyMsg *msg, const gchar *from, const gchar *signature,
 385                            gboolean is_reply, guint type, GList *attachments)
 386 {
 387         TnyMsg *new_msg;
 388         TnyHeader *new_header, *header;
 389         gchar *new_subject;
 390         TnyMimePart *body;
 391         ModestFormatter *formatter;
 392         gchar *subject_prefix;
 393
 394         /* Get body from original msg. Always look for the text/plain
 395            part of the message to create the reply/forwarded mail */
 396         header = tny_msg_get_header (msg);
 397         body   = modest_tny_msg_find_body_part (msg, FALSE);
 398
 399         /* TODO: select the formatter from account prefs */
 400         if (modest_conf_get_bool (modest_runtime_get_conf (), MODEST_CONF_PREFER_FORMATTED_TEXT, NULL))
 401                 formatter = modest_formatter_new ("text/html", signature);
 402         else
 403                 formatter = modest_formatter_new ("text/plain", signature);
 404
 405         /* Format message body */
 406         if (is_reply) {
 407                 switch (type) {
 408                 case MODEST_TNY_MSG_REPLY_TYPE_CITE:
 409                 default:
 410                         new_msg = modest_formatter_cite  (formatter, body, header);
 411                         break;
 412                 case MODEST_TNY_MSG_REPLY_TYPE_QUOTE:
 413                         new_msg = modest_formatter_quote (formatter, body, header, attachments);
 414                         break;
 415                 }
 416         } else {
 417                 switch (type) {
 418                 case MODEST_TNY_MSG_FORWARD_TYPE_INLINE:
 419                 default:
 420                         new_msg = modest_formatter_inline  (formatter, body, header, attachments);
 421                         break;
 422                 case MODEST_TNY_MSG_FORWARD_TYPE_ATTACHMENT:
 423                         new_msg = modest_formatter_attach (formatter, body, header);
 424                         break;
 425                 }
 426         }
 427         g_object_unref (G_OBJECT(formatter));
 428         g_object_unref (G_OBJECT(body));
 429
 430         /* Fill the header */
 431         new_header = tny_msg_get_header (new_msg);
 432         tny_header_set_from (new_header, from);
 433         tny_header_set_replyto (new_header, from);
 434
 435         /* Change the subject */
 436         if (is_reply)
 437                 subject_prefix = g_strconcat (_("mail_va_re"), ":", NULL);
 438         else
 439                 subject_prefix = g_strconcat (_("mail_va_fw"), ":", NULL);
 440         new_subject =
 441                 (gchar *) modest_text_utils_derived_subject (tny_header_get_subject(header),
 442                                                              subject_prefix);
 443         g_free (subject_prefix);
 444         tny_header_set_subject (new_header, (const gchar *) new_subject);
 445         g_free (new_subject);
 446
 447         /* Clean */
 448         g_object_unref (G_OBJECT (new_header));
 449         g_object_unref (G_OBJECT (header));
 450
 451         return new_msg;
 452 }
 453
 454 static void
 455 add_if_attachment (gpointer data, gpointer user_data)
 456 {
 457         TnyMimePart *part;
 458         GList **attachments_list;
 459
 460         part = TNY_MIME_PART (data);
 461         attachments_list = ((GList **) user_data);
 462
 463         if ((tny_mime_part_is_attachment (part))||(TNY_IS_MSG (part)))
 464                 *attachments_list = g_list_prepend (*attachments_list, part);
 465 }
 466
 467 TnyMsg*
 468 modest_tny_msg_create_forward_msg (TnyMsg *msg,
 469                                    const gchar *from,
 470                                    const gchar *signature,
 471                                    ModestTnyMsgForwardType forward_type)
 472 {
 473         TnyMsg *new_msg;
 474         TnyList *parts = NULL;
 475         GList *attachments_list = NULL;
 476
 477         /* Add attachments */
 478         parts = TNY_LIST (tny_simple_list_new());
 479         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 480         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 481
 482         new_msg = create_reply_forward_mail (msg, from, signature, FALSE, forward_type, attachments_list);
 483         add_attachments (new_msg, attachments_list);
 484
 485         /* Clean */
 486         if (attachments_list)
 487                 g_list_free (attachments_list);
 488         g_object_unref (G_OBJECT (parts));
 489
 490         return new_msg;
 491 }
 492
 493 TnyMsg*
 494 modest_tny_msg_create_reply_msg (TnyMsg *msg,
 495                                  const gchar *from,
 496                                  const gchar *signature,
 497                                  ModestTnyMsgReplyType reply_type,
 498                                  ModestTnyMsgReplyMode reply_mode)
 499 {
 500         TnyMsg *new_msg = NULL;
 501         TnyHeader *new_header, *header;
 502         const gchar* reply_to;
 503         gchar *new_cc = NULL;
 504         const gchar *cc = NULL, *bcc = NULL;
 505         GString *tmp = NULL;
 506         TnyList *parts = NULL;
 507         GList *attachments_list = NULL;
 508
 509         /* Add attachments */
 510         parts = TNY_LIST (tny_simple_list_new());
 511         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 512         tny_list_foreach (parts, add_if_attachment, &attachments_list);
 513
 514         new_msg = create_reply_forward_mail (msg, from, signature, TRUE, reply_type, attachments_list);
 515         if (attachments_list) {
 516                 g_list_foreach (attachments_list, (GFunc) g_object_unref, NULL);
 517                 g_list_free (attachments_list);
 518         }
 519         g_object_unref (G_OBJECT (parts));
 520
 521         /* Fill the header */
 522         header = tny_msg_get_header (msg);
 523         new_header = tny_msg_get_header (new_msg);
 524         reply_to = tny_header_get_replyto (header);
 525
 526         if (reply_to)
 527                 tny_header_set_to (new_header, reply_to);
 528         else
 529                 tny_header_set_to (new_header, tny_header_get_from (header));
 530
 531         switch (reply_mode) {
 532         case MODEST_TNY_MSG_REPLY_MODE_SENDER:
 533                 /* Do not fill neither cc nor bcc */
 534                 break;
 535         case MODEST_TNY_MSG_REPLY_MODE_LIST:
 536                 /* TODO */
 537                 break;
 538         case MODEST_TNY_MSG_REPLY_MODE_ALL:
 539                 /* Concatenate to, cc and bcc */
 540                 cc = tny_header_get_cc (header);
 541                 bcc = tny_header_get_bcc (header);
 542
 543                 tmp = g_string_new (tny_header_get_to (header));
 544                 if (cc)  g_string_append_printf (tmp, ",%s",cc);
 545                 if (bcc) g_string_append_printf (tmp, ",%s",bcc);
 546
 547                /* Remove my own address from the cc list. TODO:
 548                   remove also the To: of the new message, needed due
 549                   to the new reply_to feature */
 550                 new_cc = (gchar *)
 551                         modest_text_utils_remove_address ((const gchar *) tmp->str,
 552                                                           from);
 553                 /* FIXME: remove also the mails from the new To: */
 554                 tny_header_set_cc (new_header, new_cc);
 555
 556                 /* Clean */
 557                 g_string_free (tmp, TRUE);
 558                 g_free (new_cc);
 559                 break;
 560         }
 561
 562         /* Clean */
 563         g_object_unref (G_OBJECT (new_header));
 564         g_object_unref (G_OBJECT (header));
 565
 566         return new_msg;
 567 }
 568
 569
 570 static gboolean
 571 is_ascii(const gchar *s)
 572 {
 573         if (!s)
 574                 return TRUE;
 575         while (s[0]) {
 576                 if (s[0] & 128 || s[0] < 32)
 577                         return FALSE;
 578                 s++;
 579         }
 580         return TRUE;
 581 }
 582
 583 static char *
 584 get_content_type(const gchar *s)
 585 {
 586         GString *type;
 587
 588         type = g_string_new("text/plain");
 589         if (!is_ascii(s)) {
 590                 if (g_utf8_validate(s, -1, NULL)) {
 591                         g_string_append(type, "; charset=\"utf-8\"");
 592                 } else {
 593                         /* it should be impossible to reach this, but better safe than sorry */
 594                         g_warning("invalid utf8 in message");
 595                         g_string_append(type, "; charset=\"latin1\"");
 596                 }
 597         }
 598         return g_string_free(type, FALSE);
 599 }