src/procmsg.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <ctype.h>
  27
  28 #include "main.h"
  29 #include "utils.h"
  30 #include "procmsg.h"
  31 #include "procheader.h"
  32 #include "send_message.h"
  33 #include "procmime.h"
  34 #include "statusbar.h"
  35 #include "prefs_filtering.h"
  36 #include "filtering.h"
  37 #include "folder.h"
  38 #include "prefs_common.h"
  39 #include "account.h"
  40 #include "alertpanel.h"
  41 #include "news.h"
  42 #include "hooks.h"
  43 #include "msgcache.h"
  44 #include "partial_download.h"
  45 #include "mainwindow.h"
  46 #include "summaryview.h"
  47 #include "log.h"
  48 #include "tags.h"
  49 #include "timing.h"
  50 #include "inc.h"
  51 #include "privacy.h"
  52
  53 extern SessionStats session_stats;
  54
  55 static gint procmsg_send_message_queue_full(const gchar *file, gboolean keep_session, gchar **errstr,
  56                                             FolderItem *queue, gint msgnum, gboolean *queued_removed);
  57 static void procmsg_update_unread_children      (MsgInfo        *info,
  58                                          gboolean        newly_marked);
  59 enum
  60 {
  61         Q_SENDER           = 0,
  62         Q_SMTPSERVER       = 1,
  63         Q_RECIPIENTS       = 2,
  64         Q_NEWSGROUPS       = 3,
  65         Q_MAIL_ACCOUNT_ID  = 4,
  66         Q_NEWS_ACCOUNT_ID  = 5,
  67         Q_SAVE_COPY_FOLDER = 6,
  68         Q_REPLY_MESSAGE_ID = 7,
  69         Q_FWD_MESSAGE_ID   = 8,
  70         Q_PRIVACY_SYSTEM   = 9,
  71         Q_ENCRYPT          = 10,
  72         Q_ENCRYPT_DATA     = 11,
  73         Q_CLAWS_HDRS       = 12,
  74         Q_PRIVACY_SYSTEM_OLD = 13,
  75         Q_ENCRYPT_OLD        = 14,
  76         Q_ENCRYPT_DATA_OLD   = 15,
  77         Q_CLAWS_HDRS_OLD     = 16,
  78 };
  79
  80 void procmsg_msg_list_free(GSList *mlist)
  81 {
  82         GSList *cur;
  83         MsgInfo *msginfo;
  84
  85         for (cur = mlist; cur != NULL; cur = cur->next) {
  86                 msginfo = (MsgInfo *)cur->data;
  87                 procmsg_msginfo_free(&msginfo);
  88         }
  89         g_slist_free(mlist);
  90 }
  91
  92 MsgNumberList *procmsg_get_number_list_for_msgs(MsgInfoList *msglist)
  93 {
  94         GSList *cur = NULL;
  95         GSList *nums = NULL;
  96
  97         for (cur = msglist; cur; cur = cur->next) {
  98                 MsgInfo *msg = (MsgInfo *)cur->data;
  99                 nums = g_slist_prepend(nums, GUINT_TO_POINTER(msg->msgnum));
 100         }
 101
 102         return g_slist_reverse(nums);
 103 }
 104
 105 struct MarkSum {
 106         gint *new_msgs;
 107         gint *unread_msgs;
 108         gint *total_msgs;
 109         gint *min;
 110         gint *max;
 111         gint first;
 112 };
 113
 114 /* CLAWS subject threading:
 115
 116   in the first round it inserts subject lines in a
 117   hashtable (subject <-> node)
 118
 119   the second round finishes the threads by attaching
 120   matching subject lines to the one found in the
 121   hashtable. will use the oldest node with the same
 122   subject that is not more then thread_by_subject_max_age
 123   days old (see subject_hashtable_lookup)
 124 */
 125
 126 static void subject_hashtable_insert(GHashTable *hashtable, GNode *node)
 127 {
 128         gchar *subject;
 129         MsgInfo *msginfo;
 130         GSList *list = NULL;
 131
 132         cm_return_if_fail(hashtable != NULL);
 133         cm_return_if_fail(node != NULL);
 134         msginfo = (MsgInfo *) node->data;
 135         cm_return_if_fail(msginfo != NULL);
 136
 137         subject = msginfo->subject;
 138         if (subject == NULL)
 139                 return;
 140
 141         subject += subject_get_prefix_length(subject);
 142
 143         list = g_hash_table_lookup(hashtable, subject);
 144         list = g_slist_prepend(list, node);
 145         g_hash_table_insert(hashtable, subject, list);
 146 }
 147
 148 static GNode *subject_hashtable_lookup(GHashTable *hashtable, MsgInfo *msginfo)
 149 {
 150         gchar *subject;
 151         GSList *list, *cur;
 152         GNode *node = NULL, *hashtable_node = NULL;
 153         gint prefix_length;
 154         MsgInfo *hashtable_msginfo = NULL, *best_msginfo = NULL;
 155         gboolean match;
 156
 157         cm_return_val_if_fail(hashtable != NULL, NULL);
 158
 159         subject = msginfo->subject;
 160         if (subject == NULL)
 161                 return NULL;
 162         prefix_length = subject_get_prefix_length(subject);
 163         if (prefix_length <= 0)
 164                 return NULL;
 165         subject += prefix_length;
 166
 167         list = g_hash_table_lookup(hashtable, subject);
 168         if (list == NULL)
 169                 return NULL;
 170
 171         /* check all nodes with the same subject to find the best parent */
 172         for (cur = list; cur; cur = cur->next) {
 173                 hashtable_node = (GNode *)cur->data;
 174                 hashtable_msginfo = (MsgInfo *) hashtable_node->data;
 175                 match = FALSE;
 176
 177                 /* best node should be the oldest in the found nodes */
 178                 /* parent node must not be older then msginfo */
 179                 if ((hashtable_msginfo->date_t < msginfo->date_t) &&
 180                     ((best_msginfo == NULL) ||
 181                      (best_msginfo->date_t > hashtable_msginfo->date_t)))
 182                         match = TRUE;
 183
 184                 /* parent node must not be more then thread_by_subject_max_age
 185                    days older then msginfo */
 186                 if (abs(difftime(msginfo->date_t, hashtable_msginfo->date_t)) >
 187                     prefs_common.thread_by_subject_max_age * 3600 * 24)
 188                         match = FALSE;
 189
 190                 /* can add new tests for all matching
 191                    nodes found by subject */
 192
 193                 if (match) {
 194                         node = hashtable_node;
 195                         best_msginfo = hashtable_msginfo;
 196                 }
 197         }
 198
 199         return node;
 200 }
 201
 202 static void subject_hashtable_free(gpointer key, gpointer value, gpointer data)
 203 {
 204         g_slist_free(value);
 205 }
 206
 207 /* return the reversed thread tree */
 208 GNode *procmsg_get_thread_tree(GSList *mlist)
 209 {
 210         GNode *root, *parent, *node, *next;
 211         GHashTable *msgid_table;
 212         GHashTable *subject_hashtable = NULL;
 213         MsgInfo *msginfo;
 214         const gchar *msgid;
 215         GSList *reflist;
 216         START_TIMING("");
 217         root = g_node_new(NULL);
 218         msgid_table = g_hash_table_new(g_str_hash, g_str_equal);
 219
 220         if (prefs_common.thread_by_subject) {
 221                 subject_hashtable = g_hash_table_new(g_str_hash, g_str_equal);
 222         }
 223
 224         for (; mlist != NULL; mlist = mlist->next) {
 225                 msginfo = (MsgInfo *)mlist->data;
 226                 parent = root;
 227
 228                 if (msginfo->inreplyto) {
 229                         parent = g_hash_table_lookup(msgid_table, msginfo->inreplyto);
 230                         if (parent == NULL) {
 231                                 parent = root;
 232                         }
 233                 }
 234                 node = g_node_insert_data_before
 235                         (parent, parent == root ? parent->children : NULL,
 236                          msginfo);
 237                 if ((msgid = msginfo->msgid) && g_hash_table_lookup(msgid_table, msgid) == NULL)
 238                         g_hash_table_insert(msgid_table, (gchar *)msgid, node);
 239
 240                 /* CLAWS: add subject to hashtable (without prefix) */
 241                 if (prefs_common.thread_by_subject) {
 242                         subject_hashtable_insert(subject_hashtable, node);
 243                 }
 244         }
 245
 246         /* complete the unfinished threads */
 247         for (node = root->children; node != NULL; ) {
 248                 next = node->next;
 249                 msginfo = (MsgInfo *)node->data;
 250                 parent = NULL;
 251
 252                 if (msginfo->inreplyto)
 253                         parent = g_hash_table_lookup(msgid_table, msginfo->inreplyto);
 254
 255                 /* try looking for the indirect parent */
 256                 if (!parent && msginfo->references) {
 257                         for (reflist = msginfo->references;
 258                              reflist != NULL; reflist = reflist->next)
 259                                 if ((parent = g_hash_table_lookup
 260                                         (msgid_table, reflist->data)) != NULL)
 261                                         break;
 262                 }
 263
 264                 /* node should not be the parent, and node should not
 265                    be an ancestor of parent (circular reference) */
 266                 if (parent && parent != node &&
 267                     !g_node_is_ancestor(node, parent)) {
 268                         g_node_unlink(node);
 269                         g_node_insert_before
 270                                 (parent, parent->children, node);
 271                 }
 272
 273                 node = next;
 274         }
 275
 276         if (prefs_common.thread_by_subject) {
 277                 START_TIMING("thread by subject");
 278                 for (node = root->children; node && node != NULL;) {
 279                         next = node->next;
 280                         msginfo = (MsgInfo *) node->data;
 281
 282                         parent = subject_hashtable_lookup(subject_hashtable, msginfo);
 283
 284                         /* the node may already be threaded by IN-REPLY-TO, so go up
 285                          * in the tree to
 286                            find the parent node */
 287                         if (parent != NULL) {
 288                                 if (g_node_is_ancestor(node, parent))
 289                                         parent = NULL;
 290                                 if (parent == node)
 291                                         parent = NULL;
 292                         }
 293
 294                         if (parent) {
 295                                 g_node_unlink(node);
 296                                 g_node_append(parent, node);
 297                         }
 298
 299                         node = next;
 300                 }
 301                 END_TIMING();
 302         }
 303
 304         if (prefs_common.thread_by_subject)
 305         {
 306                 g_hash_table_foreach(subject_hashtable, subject_hashtable_free, NULL);
 307                 g_hash_table_destroy(subject_hashtable);
 308         }
 309
 310         g_hash_table_destroy(msgid_table);
 311         END_TIMING();
 312         return root;
 313 }
 314
 315 gint procmsg_move_messages(GSList *mlist)
 316 {
 317         GSList *cur, *movelist = NULL;
 318         MsgInfo *msginfo;
 319         FolderItem *dest = NULL;
 320         gint retval = 0;
 321         gboolean finished = TRUE;
 322         if (!mlist) return 0;
 323
 324         folder_item_update_freeze();
 325
 326 next_folder:
 327         for (cur = mlist; cur != NULL; cur = cur->next) {
 328                 msginfo = (MsgInfo *)cur->data;
 329                 if (!msginfo->to_folder) {
 330                         continue;
 331                 } else {
 332                         finished = FALSE;
 333                 }
 334                 if (!dest) {
 335                         dest = msginfo->to_folder;
 336                         movelist = g_slist_prepend(movelist, msginfo);
 337                 } else if (dest == msginfo->to_folder) {
 338                         movelist = g_slist_prepend(movelist, msginfo);
 339                 } else {
 340                         continue;
 341                 }
 342                 procmsg_msginfo_set_to_folder(msginfo, NULL);
 343         }
 344         if (movelist) {
 345                 movelist = g_slist_reverse(movelist);
 346                 retval |= folder_item_move_msgs(dest, movelist);
 347                 g_slist_free(movelist);
 348                 movelist = NULL;
 349         }
 350         if (finished == FALSE) {
 351                 finished = TRUE;
 352                 dest = NULL;
 353                 goto next_folder;
 354         }
 355
 356         folder_item_update_thaw();
 357         return retval;
 358 }
 359
 360 void procmsg_copy_messages(GSList *mlist)
 361 {
 362         GSList *cur, *copylist = NULL;
 363         MsgInfo *msginfo;
 364         FolderItem *dest = NULL;
 365         gboolean finished = TRUE;
 366         if (!mlist) return;
 367
 368         folder_item_update_freeze();
 369
 370 next_folder:
 371         for (cur = mlist; cur != NULL; cur = cur->next) {
 372                 msginfo = (MsgInfo *)cur->data;
 373                 if (!msginfo->to_folder) {
 374                         continue;
 375                 } else {
 376                         finished = FALSE;
 377                 }
 378                 if (!dest) {
 379                         dest = msginfo->to_folder;
 380                         copylist = g_slist_prepend(copylist, msginfo);
 381                 } else if (dest == msginfo->to_folder) {
 382                         copylist = g_slist_prepend(copylist, msginfo);
 383                 } else {
 384                         continue;
 385                 }
 386                 procmsg_msginfo_set_to_folder(msginfo, NULL);
 387         }
 388         if (copylist) {
 389                 copylist = g_slist_reverse(copylist);
 390                 folder_item_copy_msgs(dest, copylist);
 391                 g_slist_free(copylist);
 392                 copylist = NULL;
 393         }
 394         if (finished == FALSE) {
 395                 finished = TRUE;
 396                 dest = NULL;
 397                 goto next_folder;
 398         }
 399
 400         folder_item_update_thaw();
 401 }
 402
 403 gchar *procmsg_get_message_file_path(MsgInfo *msginfo)
 404 {
 405         cm_return_val_if_fail(msginfo != NULL, NULL);
 406
 407         return folder_item_fetch_msg(msginfo->folder, msginfo->msgnum);
 408 }
 409
 410 gchar *procmsg_get_message_file(MsgInfo *msginfo)
 411 {
 412         gchar *filename = NULL;
 413
 414         cm_return_val_if_fail(msginfo != NULL, NULL);
 415
 416         filename = folder_item_fetch_msg(msginfo->folder, msginfo->msgnum);
 417         if (!filename)
 418                 debug_print("can't fetch message %d\n", msginfo->msgnum);
 419
 420         return filename;
 421 }
 422
 423 gchar *procmsg_get_message_file_full(MsgInfo *msginfo, gboolean headers, gboolean body)
 424 {
 425         gchar *filename = NULL;
 426
 427         cm_return_val_if_fail(msginfo != NULL, NULL);
 428
 429         filename = folder_item_fetch_msg_full(msginfo->folder, msginfo->msgnum,
 430                                                 headers, body);
 431         if (!filename)
 432                 debug_print("can't fetch message %d\n", msginfo->msgnum);
 433
 434         return filename;
 435 }
 436
 437 GSList *procmsg_get_message_file_list(GSList *mlist)
 438 {
 439         GSList *file_list = NULL;
 440         MsgInfo *msginfo;
 441         MsgFileInfo *fileinfo;
 442         gchar *file;
 443
 444         while (mlist != NULL) {
 445                 msginfo = (MsgInfo *)mlist->data;
 446                 file = procmsg_get_message_file(msginfo);
 447                 if (!file) {
 448                         procmsg_message_file_list_free(file_list);
 449                         return NULL;
 450                 }
 451                 fileinfo = g_new(MsgFileInfo, 1);
 452                 fileinfo->msginfo = procmsg_msginfo_new_ref(msginfo);
 453                 fileinfo->file = file;
 454                 fileinfo->flags = g_new(MsgFlags, 1);
 455                 *fileinfo->flags = msginfo->flags;
 456                 file_list = g_slist_prepend(file_list, fileinfo);
 457                 mlist = mlist->next;
 458         }
 459
 460         file_list = g_slist_reverse(file_list);
 461
 462         return file_list;
 463 }
 464
 465 void procmsg_message_file_list_free(MsgInfoList *file_list)
 466 {
 467         GSList *cur;
 468         MsgFileInfo *fileinfo;
 469
 470         for (cur = file_list; cur != NULL; cur = cur->next) {
 471                 fileinfo = (MsgFileInfo *)cur->data;
 472                 procmsg_msginfo_free(&(fileinfo->msginfo));
 473                 g_free(fileinfo->file);
 474                 g_free(fileinfo->flags);
 475                 g_free(fileinfo);
 476         }
 477
 478         g_slist_free(file_list);
 479 }
 480
 481 FILE *procmsg_open_message(MsgInfo *msginfo)
 482 {
 483         FILE *fp;
 484         gchar *file;
 485
 486         cm_return_val_if_fail(msginfo != NULL, NULL);
 487
 488         file = procmsg_get_message_file_path(msginfo);
 489         cm_return_val_if_fail(file != NULL, NULL);
 490
 491         if (!is_file_exist(file)) {
 492                 g_free(file);
 493                 file = procmsg_get_message_file(msginfo);
 494                 if (!file)
 495                         return NULL;
 496         }
 497
 498         if ((fp = g_fopen(file, "rb")) == NULL) {
 499                 FILE_OP_ERROR(file, "fopen");
 500                 g_free(file);
 501                 return NULL;
 502         }
 503
 504         g_free(file);
 505
 506         if (MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags)) {
 507                 gchar buf[BUFFSIZE];
 508
 509                 while (fgets(buf, sizeof(buf), fp) != NULL) {
 510                         /* new way */
 511                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
 512                                 strlen("X-Claws-End-Special-Headers:"))) ||
 513                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
 514                                 strlen("X-Sylpheed-End-Special-Headers:"))))
 515                                 break;
 516                         /* old way */
 517                         if (buf[0] == '\r' || buf[0] == '\n') break;
 518                         /* from other mailers */
 519                         if (!strncmp(buf, "Date: ", 6)
 520                         ||  !strncmp(buf, "To: ", 4)
 521                         ||  !strncmp(buf, "From: ", 6)
 522                         ||  !strncmp(buf, "Subject: ", 9)) {
 523                                 rewind(fp);
 524                                 break;
 525                         }
 526                 }
 527         }
 528
 529         return fp;
 530 }
 531
 532 gboolean procmsg_msg_exist(MsgInfo *msginfo)
 533 {
 534         gchar *path;
 535         gboolean ret;
 536
 537         if (!msginfo) return FALSE;
 538
 539         path = folder_item_get_path(msginfo->folder);
 540         ret = !folder_item_is_msg_changed(msginfo->folder, msginfo);
 541         g_free(path);
 542
 543         return ret;
 544 }
 545
 546 void procmsg_get_filter_keyword(MsgInfo *msginfo, gchar **header, gchar **key,
 547                                 PrefsFilterType type)
 548 {
 549         static HeaderEntry hentry[] = {{"X-BeenThere:",    NULL, TRUE},
 550                                        {"X-ML-Name:",      NULL, TRUE},
 551                                        {"X-List:",         NULL, TRUE},
 552                                        {"X-Mailing-list:", NULL, TRUE},
 553                                        {"List-Id:",        NULL, TRUE},
 554                                        {"X-Sequence:",     NULL, TRUE},
 555                                        {"Sender:",         NULL, TRUE},
 556                                        {"List-Post:",      NULL, TRUE},
 557                                        {NULL,              NULL, FALSE}};
 558         enum
 559         {
 560                 H_X_BEENTHERE    = 0,
 561                 H_X_ML_NAME      = 1,
 562                 H_X_LIST         = 2,
 563                 H_X_MAILING_LIST = 3,
 564                 H_LIST_ID        = 4,
 565                 H_X_SEQUENCE     = 5,
 566                 H_SENDER         = 6,
 567                 H_LIST_POST      = 7
 568         };
 569
 570         FILE *fp;
 571
 572         cm_return_if_fail(msginfo != NULL);
 573         cm_return_if_fail(header != NULL);
 574         cm_return_if_fail(key != NULL);
 575
 576         *header = NULL;
 577         *key = NULL;
 578
 579         switch (type) {
 580         case FILTER_BY_NONE:
 581                 return;
 582         case FILTER_BY_AUTO:
 583                 if ((fp = procmsg_open_message(msginfo)) == NULL)
 584                         return;
 585                 procheader_get_header_fields(fp, hentry);
 586                 fclose(fp);
 587
 588 #define SET_FILTER_KEY(hstr, idx)       \
 589 {                                       \
 590         *header = g_strdup(hstr);       \
 591         *key = hentry[idx].body;        \
 592         hentry[idx].body = NULL;        \
 593 }
 594
 595                 if (hentry[H_LIST_ID].body != NULL) {
 596                         SET_FILTER_KEY("header \"List-Id\"", H_LIST_ID);
 597                         extract_list_id_str(*key);
 598                 } else if (hentry[H_X_BEENTHERE].body != NULL) {
 599                         SET_FILTER_KEY("header \"X-BeenThere\"", H_X_BEENTHERE);
 600                 } else if (hentry[H_X_ML_NAME].body != NULL) {
 601                         SET_FILTER_KEY("header \"X-ML-Name\"", H_X_ML_NAME);
 602                 } else if (hentry[H_X_LIST].body != NULL) {
 603                         SET_FILTER_KEY("header \"X-List\"", H_X_LIST);
 604                 } else if (hentry[H_X_MAILING_LIST].body != NULL) {
 605                         SET_FILTER_KEY("header \"X-Mailing-List\"", H_X_MAILING_LIST);
 606                 } else  if (hentry[H_X_SEQUENCE].body != NULL) {
 607                         gchar *p;
 608
 609                         SET_FILTER_KEY("X-Sequence", H_X_SEQUENCE);
 610                         p = *key;
 611                         while (*p != '\0') {
 612                                 while (*p != '\0' && !g_ascii_isspace(*p)) p++;
 613                                 while (g_ascii_isspace(*p)) p++;
 614                                 if (g_ascii_isdigit(*p)) {
 615                                         *p = '\0';
 616                                         break;
 617                                 }
 618                         }
 619                         g_strstrip(*key);
 620                 } else if (hentry[H_SENDER].body != NULL) {
 621                         SET_FILTER_KEY("header \"Sender\"", H_SENDER);
 622                 } else if (hentry[H_LIST_POST].body != NULL) {
 623                         SET_FILTER_KEY("header \"List-Post\"", H_LIST_POST);
 624                 } else if (msginfo->to) {
 625                         *header = g_strdup("to");
 626                         *key = g_strdup(msginfo->to);
 627                 } else if (msginfo->subject) {
 628                         *header = g_strdup("subject");
 629                         *key = g_strdup(msginfo->subject);
 630                 }
 631
 632 #undef SET_FILTER_KEY
 633
 634                 g_free(hentry[H_X_BEENTHERE].body);
 635                 hentry[H_X_BEENTHERE].body = NULL;
 636                 g_free(hentry[H_X_ML_NAME].body);
 637                 hentry[H_X_ML_NAME].body = NULL;
 638                 g_free(hentry[H_X_LIST].body);
 639                 hentry[H_X_LIST].body = NULL;
 640                 g_free(hentry[H_X_MAILING_LIST].body);
 641                 hentry[H_X_MAILING_LIST].body = NULL;
 642                 g_free(hentry[H_LIST_ID].body);
 643                 hentry[H_LIST_ID].body = NULL;
 644                 g_free(hentry[H_SENDER].body);
 645                 hentry[H_SENDER].body = NULL;
 646                 g_free(hentry[H_LIST_POST].body);
 647                 hentry[H_LIST_POST].body = NULL;
 648
 649                 break;
 650         case FILTER_BY_FROM:
 651                 *header = g_strdup("from");
 652                 *key = g_strdup(msginfo->from);
 653                 break;
 654         case FILTER_BY_TO:
 655                 *header = g_strdup("to");
 656                 *key = g_strdup(msginfo->to);
 657                 break;
 658         case FILTER_BY_SUBJECT:
 659                 *header = g_strdup("subject");
 660                 *key = g_strdup(msginfo->subject);
 661                 break;
 662         default:
 663                 break;
 664         }
 665 }
 666
 667 static void procmsg_empty_trash(FolderItem *trash)
 668 {
 669         GNode *node, *next;
 670
 671         if (!trash ||
 672             (trash->stype != F_TRASH &&
 673              !folder_has_parent_of_type(trash, F_TRASH)))
 674                 return;
 675
 676         if (trash && trash->total_msgs > 0) {
 677                 GSList *mlist = folder_item_get_msg_list(trash);
 678                 GSList *cur;
 679                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
 680                         MsgInfo * msginfo = (MsgInfo *) cur->data;
 681                         if (MSG_IS_LOCKED(msginfo->flags)) {
 682                                 procmsg_msginfo_free(&msginfo);
 683                                 continue;
 684                         }
 685                         if (msginfo->total_size != 0 &&
 686                             msginfo->size != (off_t)msginfo->total_size)
 687                                 partial_mark_for_delete(msginfo);
 688
 689                         procmsg_msginfo_free(&msginfo);
 690                 }
 691                 g_slist_free(mlist);
 692                 folder_item_remove_all_msg(trash);
 693         }
 694
 695         if (!trash->node || !trash->node->children)
 696                 return;
 697
 698         node = trash->node->children;
 699         while (node != NULL) {
 700                 next = node->next;
 701                 procmsg_empty_trash(FOLDER_ITEM(node->data));
 702                 node = next;
 703         }
 704 }
 705
 706 void procmsg_empty_all_trash(void)
 707 {
 708         FolderItem *trash;
 709         GList *cur;
 710
 711         for (cur = folder_get_list(); cur != NULL; cur = cur->next) {
 712                 Folder *folder = FOLDER(cur->data);
 713                 trash = folder->trash;
 714                 procmsg_empty_trash(trash);
 715                 if (folder->account && folder->account->set_trash_folder &&
 716                     folder_find_item_from_identifier(folder->account->trash_folder))
 717                         procmsg_empty_trash(
 718                                 folder_find_item_from_identifier(folder->account->trash_folder));
 719         }
 720 }
 721
 722 static PrefsAccount *procmsg_get_account_from_file(const gchar *file)
 723 {
 724         PrefsAccount *mailac = NULL;
 725         FILE *fp;
 726         int hnum;
 727         gchar *buf = NULL;
 728         static HeaderEntry qentry[] = {{"S:",    NULL, FALSE},
 729                                        {"SSV:",  NULL, FALSE},
 730                                        {"R:",    NULL, FALSE},
 731                                        {"NG:",   NULL, FALSE},
 732                                        {"MAID:", NULL, FALSE},
 733                                        {"NAID:", NULL, FALSE},
 734                                        {"SCF:",  NULL, FALSE},
 735                                        {"RMID:", NULL, FALSE},
 736                                        {"FMID:", NULL, FALSE},
 737                                        {"X-Claws-Privacy-System:", NULL, FALSE},
 738                                        {"X-Claws-Encrypt:", NULL, FALSE},
 739                                        {"X-Claws-Encrypt-Data:", NULL, FALSE},
 740                                        {"X-Claws-End-Special-Headers",    NULL, FALSE},
 741                                        {"X-Sylpheed-Privacy-System:", NULL, FALSE},
 742                                        {"X-Sylpheed-Encrypt:", NULL, FALSE},
 743                                        {"X-Sylpheed-Encrypt-Data:", NULL, FALSE},
 744                                        {NULL,    NULL, FALSE}};
 745
 746         cm_return_val_if_fail(file != NULL, NULL);
 747
 748         if ((fp = g_fopen(file, "rb")) == NULL) {
 749                 FILE_OP_ERROR(file, "fopen");
 750                 return NULL;
 751         }
 752
 753         while ((hnum = procheader_get_one_field(&buf, fp, qentry)) != -1 && buf != NULL) {
 754                 gchar *p = buf + strlen(qentry[hnum].name);
 755
 756                 if (hnum == Q_MAIL_ACCOUNT_ID) {
 757                         mailac = account_find_from_id(atoi(p));
 758                         break;
 759                 }
 760                 g_free(buf);
 761                 buf = NULL;
 762         }
 763         fclose(fp);
 764         return mailac;
 765 }
 766
 767 gchar *procmsg_msginfo_get_avatar(MsgInfo *msginfo, gint type)
 768 {
 769         GSList *mia;
 770
 771         if (!msginfo || !msginfo->extradata || !msginfo->extradata->avatars)
 772                 return NULL;
 773
 774         for (mia = msginfo->extradata->avatars; mia; mia = mia->next) {
 775                 MsgInfoAvatar *avatar = (MsgInfoAvatar *)mia->data;
 776                 if (avatar->avatar_id == type)
 777                         return avatar->avatar_src;
 778         }
 779
 780         return NULL;
 781 }
 782
 783 void procmsg_msginfo_add_avatar(MsgInfo *msginfo, gint type, const gchar *data)
 784 {
 785         MsgInfoAvatar *av;
 786
 787         if (!msginfo->extradata)
 788                 msginfo->extradata = g_new0(MsgInfoExtraData, 1);
 789
 790         av = g_new0(MsgInfoAvatar, 1);
 791         av->avatar_id = type;
 792         av->avatar_src = g_strdup(data);
 793
 794         msginfo->extradata->avatars = g_slist_append(msginfo->extradata->avatars, av);
 795 }
 796
 797 gchar *procmsg_msginfo_get_identifier(MsgInfo *msginfo)
 798 {
 799         gchar *folder_id;
 800         const gchar *msgid;
 801         gchar *id;
 802
 803         cm_return_val_if_fail(msginfo != NULL, NULL);
 804         folder_id = folder_item_get_identifier(msginfo->folder);
 805         msgid = msginfo->msgid;
 806
 807         id = g_strconcat(folder_id, G_DIR_SEPARATOR_S, msgid, NULL);
 808
 809         g_free(folder_id);
 810
 811         return id;
 812 }
 813
 814 MsgInfo *procmsg_get_msginfo_from_identifier(const gchar *id)
 815 {
 816         gchar *folder_id = g_strdup(id);
 817         gchar *separator = strrchr(folder_id, G_DIR_SEPARATOR);
 818         const gchar *msgid;
 819         FolderItem *item;
 820         MsgInfo *msginfo;
 821
 822         if (separator == NULL) {
 823                 g_free(folder_id);
 824                 return NULL;
 825         }
 826
 827         *separator = '\0';
 828         msgid = separator + 1;
 829
 830         item = folder_find_item_from_identifier(folder_id);
 831
 832         if (item == NULL) {
 833                 g_free(folder_id);
 834                 return NULL;
 835         }
 836
 837         msginfo = folder_item_get_msginfo_by_msgid(item, msgid);
 838         g_free(folder_id);
 839
 840         return msginfo;
 841 }
 842
 843 static GSList *procmsg_list_sort_by_account(FolderItem *queue, GSList *list)
 844 {
 845         GSList *result = NULL;
 846         GSList *orig = NULL;
 847         PrefsAccount *last_account = NULL;
 848         MsgInfo *msg = NULL;
 849         GSList *cur = NULL;
 850         gboolean nothing_to_sort = TRUE;
 851
 852         if (!list)
 853                 return NULL;
 854
 855         orig = g_slist_copy(list);
 856
 857         msg = (MsgInfo *)orig->data;
 858
 859         for (cur = orig; cur; cur = cur->next)
 860                 debug_print("sort before %s\n", ((MsgInfo *)cur->data)->from);
 861
 862         debug_print("\n");
 863
 864 parse_again:
 865         nothing_to_sort = TRUE;
 866         cur = orig;
 867         while (cur) {
 868                 gchar *file = NULL;
 869                 PrefsAccount *ac = NULL;
 870                 msg = (MsgInfo *)cur->data;
 871                 file = folder_item_fetch_msg(queue, msg->msgnum);
 872                 ac = procmsg_get_account_from_file(file);
 873                 g_free(file);
 874
 875                 if (last_account == NULL || (ac != NULL && ac == last_account)) {
 876                         result = g_slist_append(result, msg);
 877                         orig = g_slist_remove(orig, msg);
 878                         last_account = ac;
 879                         nothing_to_sort = FALSE;
 880                         goto parse_again;
 881                 }
 882                 cur = cur->next;
 883         }
 884
 885         if (orig && g_slist_length(orig)) {
 886                 if (!last_account && nothing_to_sort) {
 887                         /* can't find an account for the rest of the list */
 888                         cur = orig;
 889                         while (cur) {
 890                                 result = g_slist_append(result, cur->data);
 891                                 cur = cur->next;
 892                         }
 893                 } else {
 894                         last_account = NULL;
 895                         goto parse_again;
 896                 }
 897         }
 898
 899         g_slist_free(orig);
 900
 901         for (cur = result; cur; cur = cur->next)
 902                 debug_print("sort after %s\n", ((MsgInfo *)cur->data)->from);
 903
 904         debug_print("\n");
 905
 906         return result;
 907 }
 908
 909 static gboolean procmsg_is_last_for_account(FolderItem *queue, MsgInfo *msginfo, GSList *elem)
 910 {
 911         gchar *file = folder_item_fetch_msg(queue, msginfo->msgnum);
 912         PrefsAccount *ac = procmsg_get_account_from_file(file);
 913         GSList *cur;
 914         g_free(file);
 915         for (cur = elem; cur; cur = cur->next) {
 916                 MsgInfo *cur_msginfo = (MsgInfo *)cur->data;
 917                 file = folder_item_fetch_msg(queue, cur_msginfo->msgnum);
 918
 919                 if (cur_msginfo != msginfo && !MSG_IS_LOCKED(cur_msginfo->flags)) {
 920                         if (procmsg_get_account_from_file(file) == ac) {
 921                                 g_free(file);
 922                                 return FALSE;
 923                         }
 924                 }
 925
 926                 g_free(file);
 927         }
 928         return TRUE;
 929 }
 930
 931 static gboolean send_queue_lock = FALSE;
 932
 933 gboolean procmsg_queue_lock(char **errstr)
 934 {
 935         if (send_queue_lock) {
 936                 /* Avoid having to translate two similar strings */
 937                 log_warning(LOG_PROTOCOL, "%s\n", _("Already trying to send."));
 938                 if (errstr) {
 939                         if (*errstr) g_free(*errstr);
 940                         *errstr = g_strdup_printf(_("Already trying to send."));
 941                 }
 942                 return FALSE;
 943         }
 944         send_queue_lock = TRUE;
 945         return TRUE;
 946 }
 947 void procmsg_queue_unlock(void)
 948 {
 949         send_queue_lock = FALSE;
 950 }
 951 /*!
 952  *\brief        Send messages in queue
 953  *
 954  *\param        queue Queue folder to process
 955  *\param        save_msgs Unused
 956  *
 957  *\return       Number of messages sent, negative if an error occurred
 958  *              positive if no error occurred
 959  */
 960 gint procmsg_send_queue(FolderItem *queue, gboolean save_msgs, gchar **errstr)
 961 {
 962         gint sent = 0, err = 0;
 963         GSList *list, *elem;
 964         GSList *sorted_list = NULL;
 965         GNode *node, *next;
 966
 967         if (!procmsg_queue_lock(errstr)) {
 968                 main_window_set_menu_sensitive(mainwindow_get_mainwindow());
 969                 toolbar_main_set_sensitive(mainwindow_get_mainwindow());
 970                 return -1;
 971         }
 972         inc_lock();
 973         if (!queue)
 974                 queue = folder_get_default_queue();
 975
 976         if (queue == NULL) {
 977                 procmsg_queue_unlock();
 978                 inc_unlock();
 979                 return -1;
 980         }
 981
 982         main_window_set_menu_sensitive(mainwindow_get_mainwindow());
 983         toolbar_main_set_sensitive(mainwindow_get_mainwindow());
 984
 985         folder_item_scan(queue);
 986         list = folder_item_get_msg_list(queue);
 987
 988         /* sort the list per sender account; this helps reusing the same SMTP server */
 989         sorted_list = procmsg_list_sort_by_account(queue, list);
 990
 991         for (elem = sorted_list; elem != NULL; elem = elem->next) {
 992                 gchar *file;
 993                 MsgInfo *msginfo;
 994
 995                 msginfo = (MsgInfo *)(elem->data);
 996                 if (!MSG_IS_LOCKED(msginfo->flags) && !MSG_IS_DELETED(msginfo->flags)) {
 997                         file = folder_item_fetch_msg(queue, msginfo->msgnum);
 998                         if (file) {
 999                                 gboolean queued_removed = FALSE;
1000                                 if (procmsg_send_message_queue_full(file,
1001                                                 !procmsg_is_last_for_account(queue, msginfo, elem),
1002                                                 errstr, queue, msginfo->msgnum, &queued_removed) < 0) {
1003                                         g_warning("Sending queued message %d failed.",
1004                                                   msginfo->msgnum);
1005                                         err++;
1006                                 } else {
1007                                         sent++;
1008                                         if (!queued_removed)
1009                                                 folder_item_remove_msg(queue, msginfo->msgnum);
1010                                 }
1011                                 g_free(file);
1012                         }
1013                 }
1014                 /* FIXME: supposedly if only one message is locked, and queue
1015                  * is being flushed, the following free says something like
1016                  * "freeing msg ## in folder (nil)". */
1017                 procmsg_msginfo_free(&msginfo);
1018         }
1019
1020         g_slist_free(sorted_list);
1021         folder_item_scan(queue);
1022
1023         if (queue->node && queue->node->children) {
1024                 node = queue->node->children;
1025                 while (node != NULL) {
1026                         int res = 0;
1027                         next = node->next;
1028                         send_queue_lock = FALSE;
1029                         res = procmsg_send_queue(FOLDER_ITEM(node->data), save_msgs, errstr);
1030                         send_queue_lock = TRUE;
1031                         if (res < 0)
1032                                 err = -res;
1033                         else
1034                                 sent += res;
1035                         node = next;
1036                 }
1037         }
1038         procmsg_queue_unlock();
1039         inc_unlock();
1040         main_window_set_menu_sensitive(mainwindow_get_mainwindow());
1041         toolbar_main_set_sensitive(mainwindow_get_mainwindow());
1042
1043         return (err != 0 ? -err : sent);
1044 }
1045
1046 gboolean procmsg_is_sending(void)
1047 {
1048         return send_queue_lock;
1049 }
1050
1051 /*!
1052  *\brief        Determine if a queue folder is empty
1053  *
1054  *\param        queue Queue folder to process
1055  *
1056  *\return       TRUE if the queue folder is empty, otherwise return FALSE
1057  */
1058 gboolean procmsg_queue_is_empty(FolderItem *queue)
1059 {
1060         GSList *list;
1061         gboolean res = FALSE;
1062         if (!queue)
1063                 queue = folder_get_default_queue();
1064         cm_return_val_if_fail(queue != NULL, TRUE);
1065
1066         folder_item_scan(queue);
1067         list = folder_item_get_msg_list(queue);
1068         res = (list == NULL);
1069         procmsg_msg_list_free(list);
1070
1071         if (res == TRUE) {
1072                 GNode *node, *next;
1073                 if (queue->node && queue->node->children) {
1074                         node = queue->node->children;
1075                         while (node != NULL) {
1076                                 next = node->next;
1077                                 if (!procmsg_queue_is_empty(FOLDER_ITEM(node->data)))
1078                                         return FALSE;
1079                                 node = next;
1080                         }
1081                 }
1082         }
1083         return res;
1084 }
1085
1086 gint procmsg_remove_special_headers(const gchar *in, const gchar *out)
1087 {
1088         FILE *fp, *outfp;
1089         gchar buf[BUFFSIZE];
1090
1091         if ((fp = g_fopen(in, "rb")) == NULL) {
1092                 FILE_OP_ERROR(in, "fopen");
1093                 return -1;
1094         }
1095         if ((outfp = g_fopen(out, "wb")) == NULL) {
1096                 FILE_OP_ERROR(out, "fopen");
1097                 fclose(fp);
1098                 return -1;
1099         }
1100         while (fgets(buf, sizeof(buf), fp) != NULL) {
1101                 /* new way */
1102                 if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
1103                         strlen("X-Claws-End-Special-Headers:"))) ||
1104                     (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
1105                         strlen("X-Sylpheed-End-Special-Headers:"))))
1106                         break;
1107                 /* old way */
1108                 if (buf[0] == '\r' || buf[0] == '\n') break;
1109                 /* from other mailers */
1110                 if (!strncmp(buf, "Date: ", 6)
1111                 ||  !strncmp(buf, "To: ", 4)
1112                 ||  !strncmp(buf, "From: ", 6)
1113                 ||  !strncmp(buf, "Subject: ", 9)) {
1114                         rewind(fp);
1115                         break;
1116                 }
1117         }
1118         while (fgets(buf, sizeof(buf), fp) != NULL) {
1119                 if (fputs(buf, outfp) == EOF) {
1120                         FILE_OP_ERROR(out, "fputs");
1121                         fclose(outfp);
1122                         fclose(fp);
1123                         return -1;
1124                 }
1125         }
1126         fclose(outfp);
1127         fclose(fp);
1128         return 0;
1129 }
1130
1131 gint procmsg_save_to_outbox(FolderItem *outbox, const gchar *file,
1132                             gboolean is_queued)
1133 {
1134         gint num;
1135         MsgInfo *msginfo, *tmp_msginfo;
1136         MsgFlags flag = {0, 0};
1137
1138         debug_print("saving sent message...\n");
1139
1140         if (!outbox)
1141                 outbox = folder_get_default_outbox();
1142         cm_return_val_if_fail(outbox != NULL, -1);
1143
1144         /* remove queueing headers */
1145         if (is_queued) {
1146                 gchar tmp[MAXPATHLEN + 1];
1147
1148                 g_snprintf(tmp, sizeof(tmp), "%s%ctmpmsg.out.%08x",
1149                            get_rc_dir(), G_DIR_SEPARATOR, (guint) rand());
1150
1151                 if (procmsg_remove_special_headers(file, tmp) !=0)
1152                         return -1;
1153
1154                 folder_item_scan(outbox);
1155                 if ((num = folder_item_add_msg(outbox, tmp, &flag, TRUE)) < 0) {
1156                         g_warning("can't save message");
1157                         claws_unlink(tmp);
1158                         return -1;
1159                 }
1160         } else {
1161                 folder_item_scan(outbox);
1162                 if ((num = folder_item_add_msg
1163                         (outbox, file, &flag, FALSE)) < 0) {
1164                         g_warning("can't save message");
1165                         return -1;
1166                 }
1167         }
1168         msginfo = folder_item_get_msginfo(outbox, num);         /* refcnt++ */
1169         tmp_msginfo = procmsg_msginfo_get_full_info(msginfo);   /* refcnt++ */
1170         if (msginfo != NULL) {
1171                 procmsg_msginfo_unset_flags(msginfo, ~0, 0);
1172                 procmsg_msginfo_free(&msginfo);                 /* refcnt-- */
1173                 /* tmp_msginfo == msginfo */
1174                 if (tmp_msginfo && msginfo->extradata &&
1175                     (msginfo->extradata->dispositionnotificationto ||
1176                      msginfo->extradata->returnreceiptto)) {
1177                         procmsg_msginfo_set_flags(msginfo, MSG_RETRCPT_SENT, 0);
1178                 }
1179                 procmsg_msginfo_free(&tmp_msginfo);             /* refcnt-- */
1180         }
1181
1182         return 0;
1183 }
1184
1185
1186 MsgInfo *procmsg_msginfo_new_ref(MsgInfo *msginfo)
1187 {
1188         msginfo->refcnt++;
1189
1190         return msginfo;
1191 }
1192
1193 MsgInfo *procmsg_msginfo_new(void)
1194 {
1195         MsgInfo *newmsginfo;
1196
1197         newmsginfo = g_new0(MsgInfo, 1);
1198         newmsginfo->refcnt = 1;
1199
1200         return newmsginfo;
1201 }
1202
1203 static MsgInfoAvatar *procmsg_msginfoavatar_copy(MsgInfoAvatar *avatar)
1204 {
1205         MsgInfoAvatar *newavatar;
1206
1207         if (avatar == NULL) return NULL;
1208
1209         newavatar = g_new0(MsgInfoAvatar, 1);
1210         newavatar->avatar_id = avatar->avatar_id;
1211         newavatar->avatar_src = g_strdup(avatar->avatar_src);
1212
1213         return newavatar;
1214 }
1215
1216 static void procmsg_msginfoavatar_free(MsgInfoAvatar *avatar)
1217 {
1218         if (avatar != NULL) {
1219                 if (avatar->avatar_src != NULL)
1220                         g_free(avatar->avatar_src);
1221                 g_free(avatar);
1222         }
1223 }
1224
1225 MsgInfo *procmsg_msginfo_copy(MsgInfo *msginfo)
1226 {
1227         MsgInfo *newmsginfo;
1228         GSList *refs;
1229
1230         if (msginfo == NULL) return NULL;
1231
1232         newmsginfo = g_new0(MsgInfo, 1);
1233
1234         newmsginfo->refcnt = 1;
1235
1236 #define MEMBCOPY(mmb)   newmsginfo->mmb = msginfo->mmb
1237 #define MEMBDUP(mmb)    newmsginfo->mmb = msginfo->mmb ? \
1238                         g_strdup(msginfo->mmb) : NULL
1239
1240         MEMBCOPY(msgnum);
1241         MEMBCOPY(size);
1242         MEMBCOPY(mtime);
1243         MEMBCOPY(date_t);
1244
1245         MEMBCOPY(flags);
1246
1247         MEMBDUP(fromname);
1248
1249         MEMBDUP(date);
1250         MEMBDUP(from);
1251         MEMBDUP(to);
1252         MEMBDUP(cc);
1253         MEMBDUP(newsgroups);
1254         MEMBDUP(subject);
1255         MEMBDUP(msgid);
1256         MEMBDUP(inreplyto);
1257         MEMBDUP(xref);
1258
1259         MEMBCOPY(folder);
1260         MEMBCOPY(to_folder);
1261
1262         if (msginfo->extradata) {
1263                 newmsginfo->extradata = g_new0(MsgInfoExtraData, 1);
1264                 if (msginfo->extradata->avatars) {
1265                         newmsginfo->extradata->avatars = slist_copy_deep(msginfo->extradata->avatars,
1266                                                                 (GCopyFunc) procmsg_msginfoavatar_copy);
1267                 }
1268                 MEMBDUP(extradata->dispositionnotificationto);
1269                 MEMBDUP(extradata->returnreceiptto);
1270                 MEMBDUP(extradata->partial_recv);
1271                 MEMBDUP(extradata->account_server);
1272                 MEMBDUP(extradata->account_login);
1273                 MEMBDUP(extradata->list_post);
1274                 MEMBDUP(extradata->list_subscribe);
1275                 MEMBDUP(extradata->list_unsubscribe);
1276                 MEMBDUP(extradata->list_help);
1277                 MEMBDUP(extradata->list_archive);
1278                 MEMBDUP(extradata->list_owner);
1279                 MEMBDUP(extradata->resent_from);
1280         }
1281
1282         refs = msginfo->references;
1283         for (refs = msginfo->references; refs != NULL; refs = refs->next) {
1284                 newmsginfo->references = g_slist_prepend
1285                         (newmsginfo->references, g_strdup(refs->data));
1286         }
1287         newmsginfo->references = g_slist_reverse(newmsginfo->references);
1288
1289         MEMBCOPY(score);
1290         MEMBDUP(plaintext_file);
1291
1292         return newmsginfo;
1293 }
1294
1295 MsgInfo *procmsg_msginfo_get_full_info_from_file(MsgInfo *msginfo, const gchar *file)
1296 {
1297         MsgInfo *full_msginfo;
1298
1299         if (msginfo == NULL) return NULL;
1300
1301         if (!file || !is_file_exist(file)) {
1302                 g_warning("procmsg_msginfo_get_full_info_from_file(): can't get message file.");
1303                 return NULL;
1304         }
1305
1306         full_msginfo = procheader_parse_file(file, msginfo->flags, TRUE, FALSE);
1307         if (!full_msginfo) return NULL;
1308
1309         msginfo->total_size = full_msginfo->total_size;
1310         msginfo->planned_download = full_msginfo->planned_download;
1311
1312         if (full_msginfo->extradata) {
1313                 if (!msginfo->extradata)
1314                         msginfo->extradata = g_new0(MsgInfoExtraData, 1);
1315                 if (!msginfo->extradata->list_post)
1316                         msginfo->extradata->list_post = g_strdup(full_msginfo->extradata->list_post);
1317                 if (!msginfo->extradata->list_subscribe)
1318                         msginfo->extradata->list_subscribe = g_strdup(full_msginfo->extradata->list_subscribe);
1319                 if (!msginfo->extradata->list_unsubscribe)
1320                         msginfo->extradata->list_unsubscribe = g_strdup(full_msginfo->extradata->list_unsubscribe);
1321                 if (!msginfo->extradata->list_help)
1322                         msginfo->extradata->list_help = g_strdup(full_msginfo->extradata->list_help);
1323                 if (!msginfo->extradata->list_archive)
1324                         msginfo->extradata->list_archive= g_strdup(full_msginfo->extradata->list_archive);
1325                 if (!msginfo->extradata->list_owner)
1326                         msginfo->extradata->list_owner = g_strdup(full_msginfo->extradata->list_owner);
1327                 if (!msginfo->extradata->avatars)
1328                         msginfo->extradata->avatars = slist_copy_deep(full_msginfo->extradata->avatars,
1329                                                                         (GCopyFunc) procmsg_msginfoavatar_copy);
1330                 if (!msginfo->extradata->dispositionnotificationto)
1331                         msginfo->extradata->dispositionnotificationto =
1332                                 g_strdup(full_msginfo->extradata->dispositionnotificationto);
1333                 if (!msginfo->extradata->returnreceiptto)
1334                         msginfo->extradata->returnreceiptto = g_strdup
1335                                 (full_msginfo->extradata->returnreceiptto);
1336                 if (!msginfo->extradata->partial_recv && full_msginfo->extradata->partial_recv)
1337                         msginfo->extradata->partial_recv = g_strdup
1338                                 (full_msginfo->extradata->partial_recv);
1339                 if (!msginfo->extradata->account_server && full_msginfo->extradata->account_server)
1340                         msginfo->extradata->account_server = g_strdup
1341                                 (full_msginfo->extradata->account_server);
1342                 if (!msginfo->extradata->account_login && full_msginfo->extradata->account_login)
1343                         msginfo->extradata->account_login = g_strdup
1344                                 (full_msginfo->extradata->account_login);
1345                 if (!msginfo->extradata->resent_from && full_msginfo->extradata->resent_from)
1346                         msginfo->extradata->resent_from = g_strdup
1347                                 (full_msginfo->extradata->resent_from);
1348         }
1349         procmsg_msginfo_free(&full_msginfo);
1350
1351         return procmsg_msginfo_new_ref(msginfo);
1352 }
1353
1354 MsgInfo *procmsg_msginfo_get_full_info(MsgInfo *msginfo)
1355 {
1356         MsgInfo *full_msginfo;
1357         gchar *file;
1358
1359         if (msginfo == NULL) return NULL;
1360
1361         file = procmsg_get_message_file_path(msginfo);
1362         if (!file || !is_file_exist(file)) {
1363                 g_free(file);
1364                 file = procmsg_get_message_file(msginfo);
1365         }
1366         if (!file || !is_file_exist(file)) {
1367                 g_warning("procmsg_msginfo_get_full_info(): can't get message file.");
1368                 return NULL;
1369         }
1370
1371         full_msginfo = procmsg_msginfo_get_full_info_from_file(msginfo, file);
1372         g_free(file);
1373         return full_msginfo;
1374 }
1375
1376 #define FREENULL(n) { g_free(n); n = NULL; }
1377 void procmsg_msginfo_free(MsgInfo **msginfo_ptr)
1378 {
1379         MsgInfo *msginfo = *msginfo_ptr;
1380
1381         if (msginfo == NULL) return;
1382
1383         msginfo->refcnt--;
1384         if (msginfo->refcnt > 0)
1385                 return;
1386
1387         if (msginfo->to_folder) {
1388                 msginfo->to_folder->op_count--;
1389                 folder_item_update(msginfo->to_folder, F_ITEM_UPDATE_MSGCNT);
1390         }
1391
1392         FREENULL(msginfo->fromspace);
1393
1394         FREENULL(msginfo->fromname);
1395
1396         FREENULL(msginfo->date);
1397         FREENULL(msginfo->from);
1398         FREENULL(msginfo->to);
1399         FREENULL(msginfo->cc);
1400         FREENULL(msginfo->newsgroups);
1401         FREENULL(msginfo->subject);
1402         FREENULL(msginfo->msgid);
1403         FREENULL(msginfo->inreplyto);
1404         FREENULL(msginfo->xref);
1405
1406         if (msginfo->extradata) {
1407                 if (msginfo->extradata->avatars) {
1408                         g_slist_foreach(msginfo->extradata->avatars,
1409                                         (GFunc)procmsg_msginfoavatar_free,
1410                                         NULL);
1411                         g_slist_free(msginfo->extradata->avatars);
1412                         msginfo->extradata->avatars = NULL;
1413                 }
1414                 FREENULL(msginfo->extradata->returnreceiptto);
1415                 FREENULL(msginfo->extradata->dispositionnotificationto);
1416                 FREENULL(msginfo->extradata->list_post);
1417                 FREENULL(msginfo->extradata->list_subscribe);
1418                 FREENULL(msginfo->extradata->list_unsubscribe);
1419                 FREENULL(msginfo->extradata->list_help);
1420                 FREENULL(msginfo->extradata->list_archive);
1421                 FREENULL(msginfo->extradata->list_owner);
1422                 FREENULL(msginfo->extradata->partial_recv);
1423                 FREENULL(msginfo->extradata->account_server);
1424                 FREENULL(msginfo->extradata->account_login);
1425                 FREENULL(msginfo->extradata->resent_from);
1426                 FREENULL(msginfo->extradata);
1427         }
1428         slist_free_strings_full(msginfo->references);
1429         msginfo->references = NULL;
1430         g_slist_free(msginfo->tags);
1431         msginfo->tags = NULL;
1432
1433         FREENULL(msginfo->plaintext_file);
1434
1435         g_free(msginfo);
1436         *msginfo_ptr = NULL;
1437 }
1438 #undef FREENULL
1439
1440 guint procmsg_msginfo_memusage(MsgInfo *msginfo)
1441 {
1442         guint memusage = 0;
1443         GSList *tmp;
1444
1445         memusage += sizeof(MsgInfo);
1446         if (msginfo->fromname)
1447                 memusage += strlen(msginfo->fromname);
1448         if (msginfo->date)
1449                 memusage += strlen(msginfo->date);
1450         if (msginfo->from)
1451                 memusage += strlen(msginfo->from);
1452         if (msginfo->to)
1453                 memusage += strlen(msginfo->to);
1454         if (msginfo->cc)
1455                 memusage += strlen(msginfo->cc);
1456         if (msginfo->newsgroups)
1457                 memusage += strlen(msginfo->newsgroups);
1458         if (msginfo->subject)
1459                 memusage += strlen(msginfo->subject);
1460         if (msginfo->msgid)
1461                 memusage += strlen(msginfo->msgid);
1462         if (msginfo->inreplyto)
1463                 memusage += strlen(msginfo->inreplyto);
1464
1465         for (tmp = msginfo->references; tmp; tmp=tmp->next) {
1466                 gchar *r = (gchar *)tmp->data;
1467                 memusage += r?strlen(r):0 + sizeof(GSList);
1468         }
1469         if (msginfo->fromspace)
1470                 memusage += strlen(msginfo->fromspace);
1471
1472         for (tmp = msginfo->tags; tmp; tmp=tmp->next) {
1473                 memusage += sizeof(GSList);
1474         }
1475         if (msginfo->extradata) {
1476                 memusage += sizeof(MsgInfoExtraData);
1477                 if (msginfo->extradata->avatars) {
1478                         for (tmp = msginfo->extradata->avatars; tmp; tmp = tmp->next) {
1479                                 MsgInfoAvatar *avt = (MsgInfoAvatar *)tmp->data;
1480                                 memusage += (avt->avatar_src)? strlen(avt->avatar_src): 0;
1481                                 memusage += sizeof(MsgInfoAvatar) + sizeof(GSList);
1482                         }
1483                 }
1484                 if (msginfo->extradata->dispositionnotificationto)
1485                         memusage += strlen(msginfo->extradata->dispositionnotificationto);
1486                 if (msginfo->extradata->returnreceiptto)
1487                         memusage += strlen(msginfo->extradata->returnreceiptto);
1488
1489                 if (msginfo->extradata->partial_recv)
1490                         memusage += strlen(msginfo->extradata->partial_recv);
1491                 if (msginfo->extradata->account_server)
1492                         memusage += strlen(msginfo->extradata->account_server);
1493                 if (msginfo->extradata->account_login)
1494                         memusage += strlen(msginfo->extradata->account_login);
1495                 if (msginfo->extradata->resent_from)
1496                         memusage += strlen(msginfo->extradata->resent_from);
1497
1498                 if (msginfo->extradata->list_post)
1499                         memusage += strlen(msginfo->extradata->list_post);
1500                 if (msginfo->extradata->list_subscribe)
1501                         memusage += strlen(msginfo->extradata->list_subscribe);
1502                 if (msginfo->extradata->list_unsubscribe)
1503                         memusage += strlen(msginfo->extradata->list_unsubscribe);
1504                 if (msginfo->extradata->list_help)
1505                         memusage += strlen(msginfo->extradata->list_help);
1506                 if (msginfo->extradata->list_archive)
1507                         memusage += strlen(msginfo->extradata->list_archive);
1508                 if (msginfo->extradata->list_owner)
1509                         memusage += strlen(msginfo->extradata->list_owner);
1510         }
1511         return memusage;
1512 }
1513
1514 static gint procmsg_send_message_queue_full(const gchar *file, gboolean keep_session, gchar **errstr,
1515                                             FolderItem *queue, gint msgnum, gboolean *queued_removed)
1516 {
1517         static HeaderEntry qentry[] = {
1518                                        {"S:",    NULL, FALSE}, /* 0 */
1519                                        {"SSV:",  NULL, FALSE},
1520                                        {"R:",    NULL, FALSE},
1521                                        {"NG:",   NULL, FALSE},
1522                                        {"MAID:", NULL, FALSE},
1523                                        {"NAID:", NULL, FALSE}, /* 5 */
1524                                        {"SCF:",  NULL, FALSE},
1525                                        {"RMID:", NULL, FALSE},
1526                                        {"FMID:", NULL, FALSE},
1527                                        {"X-Claws-Privacy-System:", NULL, FALSE},
1528                                        {"X-Claws-Encrypt:", NULL, FALSE}, /* 10 */
1529                                        {"X-Claws-Encrypt-Data:", NULL, FALSE},
1530                                        {"X-Claws-End-Special-Headers:", NULL, FALSE},
1531                                        {"X-Sylpheed-Privacy-System:", NULL, FALSE},
1532                                        {"X-Sylpheed-Encrypt:", NULL, FALSE},
1533                                        {"X-Sylpheed-Encrypt-Data:", NULL, FALSE}, /* 15 */
1534                                        {"X-Sylpheed-End-Special-Headers:", NULL, FALSE},
1535                                        {NULL,    NULL, FALSE}};
1536         FILE *fp;
1537         gint filepos;
1538         gint mailval = 0, newsval = 0;
1539         gchar *from = NULL;
1540         gchar *smtpserver = NULL;
1541         GSList *to_list = NULL;
1542         GSList *newsgroup_list = NULL;
1543         gchar *savecopyfolder = NULL;
1544         gchar *replymessageid = NULL;
1545         gchar *fwdmessageid = NULL;
1546         gchar *buf;
1547         gint hnum;
1548         PrefsAccount *mailac = NULL, *newsac = NULL;
1549         gboolean encrypt = FALSE;
1550         FolderItem *outbox;
1551
1552         cm_return_val_if_fail(file != NULL, -1);
1553
1554         if ((fp = g_fopen(file, "rb")) == NULL) {
1555                 FILE_OP_ERROR(file, "fopen");
1556                 if (errstr) {
1557                         if (*errstr) g_free(*errstr);
1558                         *errstr = g_strdup_printf(_("Couldn't open file %s."), file);
1559                 }
1560                 return -1;
1561         }
1562
1563         while ((hnum = procheader_get_one_field(&buf, fp, qentry)) != -1 && buf != NULL) {
1564                 gchar *p = buf + strlen(qentry[hnum].name);
1565
1566                 switch (hnum) {
1567                 case Q_SENDER:
1568                         if (from == NULL)
1569                                 from = g_strdup(p);
1570                         break;
1571                 case Q_SMTPSERVER:
1572                         if (smtpserver == NULL)
1573                                 smtpserver = g_strdup(p);
1574                         break;
1575                 case Q_RECIPIENTS:
1576                         to_list = address_list_append(to_list, p);
1577                         break;
1578                 case Q_NEWSGROUPS:
1579                         newsgroup_list = newsgroup_list_append(newsgroup_list, p);
1580                         break;
1581                 case Q_MAIL_ACCOUNT_ID:
1582                         mailac = account_find_from_id(atoi(p));
1583                         break;
1584                 case Q_NEWS_ACCOUNT_ID:
1585                         newsac = account_find_from_id(atoi(p));
1586                         break;
1587                 case Q_SAVE_COPY_FOLDER:
1588                         if (savecopyfolder == NULL)
1589                                 savecopyfolder = g_strdup(p);
1590                         break;
1591                 case Q_REPLY_MESSAGE_ID:
1592                         if (replymessageid == NULL)
1593                                 replymessageid = g_strdup(p);
1594                         break;
1595                 case Q_FWD_MESSAGE_ID:
1596                         if (fwdmessageid == NULL)
1597                                 fwdmessageid = g_strdup(p);
1598                         break;
1599                 case Q_ENCRYPT:
1600                 case Q_ENCRYPT_OLD:
1601                         if (p[0] == '1')
1602                                 encrypt = TRUE;
1603                         break;
1604                 case Q_CLAWS_HDRS:
1605                 case Q_CLAWS_HDRS_OLD:
1606                         /* end of special headers reached */
1607                         goto send_mail; /* can't "break;break;" */
1608                 }
1609         }
1610         g_free(buf);
1611
1612 send_mail:
1613         filepos = ftell(fp);
1614         if (filepos < 0) {
1615                 FILE_OP_ERROR(file, "ftell");
1616                 if (errstr) {
1617                         if (*errstr) g_free(*errstr);
1618                         *errstr = g_strdup_printf(_("Couldn't open file %s."), file);
1619                 }
1620                 return -1;
1621         }
1622
1623         if (to_list) {
1624                 debug_print("Sending message by mail\n");
1625                 if (!from) {
1626                         if (errstr) {
1627                                 if (*errstr) g_free(*errstr);
1628                                 *errstr = g_strdup_printf(_("Queued message header is broken."));
1629                         }
1630                         mailval = -1;
1631                 } else if (mailac && mailac->use_mail_command &&
1632                            mailac->mail_command && (* mailac->mail_command)) {
1633                         mailval = send_message_local(mailac->mail_command, fp);
1634                 } else {
1635                         if (!mailac) {
1636                                 mailac = account_find_from_smtp_server(from, smtpserver);
1637                                 if (!mailac) {
1638                                         g_warning("Account not found. "
1639                                                     "Using current account...");
1640                                         mailac = cur_account;
1641                                 }
1642                         }
1643
1644                         if (mailac) {
1645                                 mailval = send_message_smtp_full(mailac, to_list, fp, keep_session);
1646                                 if (mailval == -1 && errstr) {
1647                                         if (*errstr) g_free(*errstr);
1648                                         *errstr = g_strdup_printf(_("An error happened during SMTP session."));
1649                                 }
1650                         } else {
1651                                 PrefsAccount tmp_ac;
1652
1653                                 g_warning("Account not found.");
1654
1655                                 memset(&tmp_ac, 0, sizeof(PrefsAccount));
1656                                 tmp_ac.address = from;
1657                                 tmp_ac.smtp_server = smtpserver;
1658                                 tmp_ac.smtpport = SMTP_PORT;
1659                                 mailval = send_message_smtp(&tmp_ac, to_list, fp);
1660                                 if (mailval == -1 && errstr) {
1661                                         if (*errstr) g_free(*errstr);
1662                                         *errstr = g_strdup_printf(_("No specific account has been found to "
1663                                                         "send, and an error happened during SMTP session."));
1664                                 }
1665                         }
1666                 }
1667         } else if (!to_list && !newsgroup_list) {
1668                 if (errstr) {
1669                         if (*errstr) g_free(*errstr);
1670                         *errstr = g_strdup(_("Couldn't determine sending information. "
1671                                 "Maybe the email hasn't been generated by Claws Mail."));
1672                 }
1673                 mailval = -1;
1674         }
1675
1676         if (fseek(fp, filepos, SEEK_SET) < 0) {
1677                 FILE_OP_ERROR(file, "fseek");
1678                 mailval = -1;
1679         }
1680
1681         if (newsgroup_list && newsac && (mailval == 0)) {
1682                 Folder *folder;
1683                 gchar *tmp = NULL;
1684                 gchar buf[BUFFSIZE];
1685                 FILE *tmpfp;
1686
1687                 /* write to temporary file */
1688                 tmp = g_strdup_printf("%s%cnntp%p", get_tmp_dir(),
1689                             G_DIR_SEPARATOR, file);
1690                 if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
1691                         FILE_OP_ERROR(tmp, "fopen");
1692                         newsval = -1;
1693                         alertpanel_error(_("Couldn't create temporary file for news sending."));
1694                 } else {
1695                         if (change_file_mode_rw(tmpfp, tmp) < 0) {
1696                                 FILE_OP_ERROR(tmp, "chmod");
1697                                 g_warning("can't change file mode");
1698                         }
1699
1700                         while ((newsval == 0) && fgets(buf, sizeof(buf), fp) != NULL) {
1701                                 if (fputs(buf, tmpfp) == EOF) {
1702                                         FILE_OP_ERROR(tmp, "fputs");
1703                                         newsval = -1;
1704                                         if (errstr) {
1705                                                 if (*errstr) g_free(*errstr);
1706                                                 *errstr = g_strdup_printf(_("Error when writing temporary file for news sending."));
1707                                         }
1708                                 }
1709                         }
1710                         fclose(tmpfp);
1711
1712                         if (newsval == 0) {
1713                                 debug_print("Sending message by news\n");
1714
1715                                 folder = FOLDER(newsac->folder);
1716
1717                                 newsval = news_post(folder, tmp);
1718                                 if (newsval < 0 && errstr)  {
1719                                         if (*errstr) g_free(*errstr);
1720                                         *errstr = g_strdup_printf(_("Error occurred while posting the message to %s."),
1721                                          newsac->nntp_server);
1722                                 }
1723                         }
1724                         claws_unlink(tmp);
1725                 }
1726                 g_free(tmp);
1727         }
1728
1729         fclose(fp);
1730
1731         /* update session statistics */
1732         if (mailval == 0 && newsval == 0) {
1733                 /* update session stats */
1734                 if (replymessageid)
1735                         session_stats.replied++;
1736                 else if (fwdmessageid)
1737                         session_stats.forwarded++;
1738                 else
1739                         session_stats.sent++;
1740         }
1741
1742         /* save message to outbox */
1743         if (mailval == 0 && newsval == 0 && savecopyfolder) {
1744                 debug_print("saving sent message...\n");
1745
1746                 if (!encrypt || !mailac->save_encrypted_as_clear_text) {
1747                         outbox = folder_find_item_from_identifier(savecopyfolder);
1748                         if (!outbox)
1749                                 outbox = folder_get_default_outbox();
1750
1751                         /* Mail was not saved to outbox before encrypting, save it now. */
1752                         gboolean saved = FALSE;
1753                         *queued_removed = FALSE;
1754                         if (queue && msgnum > 0) {
1755                                 MsgInfo *queued_mail = folder_item_get_msginfo(queue, msgnum);
1756                                 if (folder_item_move_msg(outbox, queued_mail) >= 0) {
1757                                         debug_print("moved queued mail %d to sent folder\n", msgnum);
1758                                         saved = TRUE;
1759                                         *queued_removed = TRUE;
1760                                 } else if (folder_item_copy_msg(outbox, queued_mail) >= 0) {
1761                                         debug_print("copied queued mail %d to sent folder\n", msgnum);
1762                                         saved = TRUE;
1763                                 }
1764                                 procmsg_msginfo_free(&queued_mail);
1765                         }
1766                         if (!saved) {
1767                                 debug_print("resaving queued mail to sent folder\n");
1768                                 procmsg_save_to_outbox(outbox, file, TRUE);
1769                         }
1770                 }
1771         }
1772
1773         if (replymessageid != NULL || fwdmessageid != NULL) {
1774                 gchar **tokens;
1775                 FolderItem *item;
1776
1777                 if (replymessageid != NULL)
1778                         tokens = g_strsplit(replymessageid, "\t", 0);
1779                 else
1780                         tokens = g_strsplit(fwdmessageid, "\t", 0);
1781                 item = folder_find_item_from_identifier(tokens[0]);
1782
1783                 /* check if queued message has valid folder and message id */
1784                 if (item != NULL && tokens[2] != NULL) {
1785                         MsgInfo *msginfo;
1786
1787                         msginfo = folder_item_get_msginfo(item, atoi(tokens[1]));
1788
1789                         /* check if referring message exists and has a message id */
1790                         if ((msginfo != NULL) &&
1791                             (msginfo->msgid != NULL) &&
1792                             (strcmp(msginfo->msgid, tokens[2]) != 0)) {
1793                                 procmsg_msginfo_free(&msginfo);
1794                                 msginfo = NULL;
1795                         }
1796
1797                         if (msginfo == NULL) {
1798                                 msginfo = folder_item_get_msginfo_by_msgid(item, tokens[2]);
1799                         }
1800
1801                         if (msginfo != NULL) {
1802                                 if (replymessageid != NULL) {
1803                                         MsgPermFlags to_unset = 0;
1804
1805                                         if (prefs_common.mark_as_read_on_new_window)
1806                                                 to_unset = (MSG_NEW|MSG_UNREAD);
1807
1808                                         procmsg_msginfo_unset_flags(msginfo, to_unset, 0);
1809                                         procmsg_msginfo_set_flags(msginfo, MSG_REPLIED, 0);
1810                                 }  else {
1811                                         procmsg_msginfo_set_flags(msginfo, MSG_FORWARDED, 0);
1812                                 }
1813                                 procmsg_msginfo_free(&msginfo);
1814                         }
1815                 }
1816                 g_strfreev(tokens);
1817         }
1818
1819         g_free(from);
1820         g_free(smtpserver);
1821         slist_free_strings_full(to_list);
1822         slist_free_strings_full(newsgroup_list);
1823         g_free(savecopyfolder);
1824         g_free(replymessageid);
1825         g_free(fwdmessageid);
1826
1827         return (newsval != 0 ? newsval : mailval);
1828 }
1829
1830 gint procmsg_send_message_queue(const gchar *file, gchar **errstr, FolderItem *queue, gint msgnum, gboolean *queued_removed)
1831 {
1832         gint result = procmsg_send_message_queue_full(file, FALSE, errstr, queue, msgnum, queued_removed);
1833         main_window_set_menu_sensitive(mainwindow_get_mainwindow());
1834         toolbar_main_set_sensitive(mainwindow_get_mainwindow());
1835         return result;
1836 }
1837
1838 gint procmsg_send_message_queue_with_lock(const gchar *file, gchar **errstr, FolderItem *queue, gint msgnum, gboolean *queued_removed)
1839 {
1840         gint val;
1841         if (procmsg_queue_lock(errstr)) {
1842                 val = procmsg_send_message_queue(file, errstr, queue, msgnum, queued_removed);
1843                 procmsg_queue_unlock();
1844                 return val;
1845         }
1846         return -1;
1847 }
1848
1849 static void update_folder_msg_counts(FolderItem *item, MsgInfo *msginfo, MsgPermFlags old_flags)
1850 {
1851         MsgPermFlags new_flags = msginfo->flags.perm_flags;
1852
1853         /* NEW flag */
1854         if (!(old_flags & MSG_NEW) && (new_flags & MSG_NEW)) {
1855                 item->new_msgs++;
1856         }
1857
1858         if ((old_flags & MSG_NEW) && !(new_flags & MSG_NEW)) {
1859                 item->new_msgs--;
1860         }
1861
1862         /* UNREAD flag */
1863         if (!(old_flags & MSG_UNREAD) && (new_flags & MSG_UNREAD)) {
1864                 item->unread_msgs++;
1865                 if (procmsg_msg_has_marked_parent(msginfo))
1866                         item->unreadmarked_msgs++;
1867         }
1868
1869         if ((old_flags & MSG_UNREAD) && !(new_flags & MSG_UNREAD)) {
1870                 item->unread_msgs--;
1871                 if (procmsg_msg_has_marked_parent(msginfo))
1872                         item->unreadmarked_msgs--;
1873         }
1874
1875         /* MARK flag */
1876         if (!(old_flags & MSG_MARKED) && (new_flags & MSG_MARKED)) {
1877                 procmsg_update_unread_children(msginfo, TRUE);
1878                 item->marked_msgs++;
1879         }
1880
1881         if ((old_flags & MSG_MARKED) && !(new_flags & MSG_MARKED)) {
1882                 procmsg_update_unread_children(msginfo, FALSE);
1883                 item->marked_msgs--;
1884         }
1885
1886         if (!(old_flags & MSG_REPLIED) && (new_flags & MSG_REPLIED)) {
1887                 item->replied_msgs++;
1888         }
1889
1890         if ((old_flags & MSG_REPLIED) && !(new_flags & MSG_REPLIED)) {
1891                 item->replied_msgs--;
1892         }
1893
1894         if (!(old_flags & MSG_FORWARDED) && (new_flags & MSG_FORWARDED)) {
1895                 item->forwarded_msgs++;
1896         }
1897
1898         if ((old_flags & MSG_FORWARDED) && !(new_flags & MSG_FORWARDED)) {
1899                 item->forwarded_msgs--;
1900         }
1901
1902         if (!(old_flags & MSG_LOCKED) && (new_flags & MSG_LOCKED)) {
1903                 item->locked_msgs++;
1904         }
1905
1906         if ((old_flags & MSG_LOCKED) && !(new_flags & MSG_LOCKED)) {
1907                 item->locked_msgs--;
1908         }
1909
1910         if ((old_flags & MSG_IGNORE_THREAD) && !(new_flags & MSG_IGNORE_THREAD)) {
1911                 item->ignored_msgs--;
1912         }
1913
1914         if (!(old_flags & MSG_IGNORE_THREAD) && (new_flags & MSG_IGNORE_THREAD)) {
1915                 item->ignored_msgs++;
1916         }
1917
1918         if ((old_flags & MSG_WATCH_THREAD) && !(new_flags & MSG_WATCH_THREAD)) {
1919                 item->watched_msgs--;
1920         }
1921
1922         if (!(old_flags & MSG_WATCH_THREAD) && (new_flags & MSG_WATCH_THREAD)) {
1923                 item->watched_msgs++;
1924         }
1925 }
1926
1927 void procmsg_msginfo_set_flags(MsgInfo *msginfo, MsgPermFlags perm_flags, MsgTmpFlags tmp_flags)
1928 {
1929         FolderItem *item;
1930         MsgInfoUpdate msginfo_update;
1931         MsgPermFlags perm_flags_new, perm_flags_old;
1932         MsgTmpFlags tmp_flags_old;
1933
1934         cm_return_if_fail(msginfo != NULL);
1935         item = msginfo->folder;
1936         cm_return_if_fail(item != NULL);
1937
1938         debug_print("Setting flags for message %d in folder %s\n", msginfo->msgnum, item->path);
1939
1940         /* Perm Flags handling */
1941         perm_flags_old = msginfo->flags.perm_flags;
1942         perm_flags_new = msginfo->flags.perm_flags | perm_flags;
1943         if ((perm_flags & MSG_IGNORE_THREAD) || (perm_flags_old & MSG_IGNORE_THREAD)) {
1944                 perm_flags_new &= ~(MSG_NEW | MSG_UNREAD);
1945         }
1946         if ((perm_flags & MSG_WATCH_THREAD) || (perm_flags_old & MSG_WATCH_THREAD)) {
1947                 perm_flags_new &= ~(MSG_IGNORE_THREAD);
1948         }
1949
1950         if (perm_flags_old != perm_flags_new) {
1951                 folder_item_change_msg_flags(msginfo->folder, msginfo, perm_flags_new);
1952
1953                 update_folder_msg_counts(item, msginfo, perm_flags_old);
1954                 summary_update_unread(mainwindow_get_mainwindow()->summaryview, NULL);
1955         }
1956
1957         /* Tmp flags handling */
1958         tmp_flags_old = msginfo->flags.tmp_flags;
1959         msginfo->flags.tmp_flags |= tmp_flags;
1960
1961         /* update notification */
1962         if ((perm_flags_old != perm_flags_new) || (tmp_flags_old != msginfo->flags.tmp_flags)) {
1963                 msginfo_update.msginfo = msginfo;
1964                 msginfo_update.flags = MSGINFO_UPDATE_FLAGS;
1965                 hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
1966                 folder_item_update(msginfo->folder, F_ITEM_UPDATE_MSGCNT);
1967         }
1968 }
1969
1970 void procmsg_msginfo_unset_flags(MsgInfo *msginfo, MsgPermFlags perm_flags, MsgTmpFlags tmp_flags)
1971 {
1972         FolderItem *item;
1973         MsgInfoUpdate msginfo_update;
1974         MsgPermFlags perm_flags_new, perm_flags_old;
1975         MsgTmpFlags tmp_flags_old;
1976
1977         cm_return_if_fail(msginfo != NULL);
1978         item = msginfo->folder;
1979         cm_return_if_fail(item != NULL);
1980
1981         debug_print("Unsetting flags for message %d in folder %s\n", msginfo->msgnum, item->path);
1982
1983         /* Perm Flags handling */
1984         perm_flags_old = msginfo->flags.perm_flags;
1985         perm_flags_new = msginfo->flags.perm_flags & ~perm_flags;
1986
1987         if (perm_flags_old != perm_flags_new) {
1988                 folder_item_change_msg_flags(msginfo->folder, msginfo, perm_flags_new);
1989
1990                 update_folder_msg_counts(item, msginfo, perm_flags_old);
1991         }
1992
1993         /* Tmp flags hanlding */
1994         tmp_flags_old = msginfo->flags.tmp_flags;
1995         msginfo->flags.tmp_flags &= ~tmp_flags;
1996
1997         /* update notification */
1998         if ((perm_flags_old != perm_flags_new) || (tmp_flags_old != msginfo->flags.tmp_flags)) {
1999                 msginfo_update.msginfo = msginfo;
2000                 msginfo_update.flags = MSGINFO_UPDATE_FLAGS;
2001                 hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2002                 folder_item_update(msginfo->folder, F_ITEM_UPDATE_MSGCNT);
2003         }
2004 }
2005
2006 void procmsg_msginfo_change_flags(MsgInfo *msginfo,
2007                                 MsgPermFlags add_perm_flags, MsgTmpFlags add_tmp_flags,
2008                                 MsgPermFlags rem_perm_flags, MsgTmpFlags rem_tmp_flags)
2009 {
2010         FolderItem *item;
2011         MsgInfoUpdate msginfo_update;
2012         MsgPermFlags perm_flags_new, perm_flags_old;
2013         MsgTmpFlags tmp_flags_old;
2014
2015         cm_return_if_fail(msginfo != NULL);
2016         item = msginfo->folder;
2017         cm_return_if_fail(item != NULL);
2018
2019         debug_print("Changing flags for message %d in folder %s\n", msginfo->msgnum, item->path);
2020
2021         /* Perm Flags handling */
2022         perm_flags_old = msginfo->flags.perm_flags;
2023         perm_flags_new = (msginfo->flags.perm_flags & ~rem_perm_flags) | add_perm_flags;
2024         if ((add_perm_flags & MSG_IGNORE_THREAD) || (perm_flags_old & MSG_IGNORE_THREAD)) {
2025                 perm_flags_new &= ~(MSG_NEW | MSG_UNREAD);
2026         }
2027         if ((add_perm_flags & MSG_WATCH_THREAD) || (perm_flags_old & MSG_WATCH_THREAD)) {
2028                 perm_flags_new &= ~(MSG_IGNORE_THREAD);
2029         }
2030
2031         if (perm_flags_old != perm_flags_new) {
2032                 folder_item_change_msg_flags(msginfo->folder, msginfo, perm_flags_new);
2033
2034                 update_folder_msg_counts(item, msginfo, perm_flags_old);
2035
2036         }
2037
2038         /* Tmp flags handling */
2039         tmp_flags_old = msginfo->flags.tmp_flags;
2040         msginfo->flags.tmp_flags &= ~rem_tmp_flags;
2041         msginfo->flags.tmp_flags |= add_tmp_flags;
2042
2043         /* update notification */
2044         if ((perm_flags_old != perm_flags_new) || (tmp_flags_old != msginfo->flags.tmp_flags)) {
2045                 msginfo_update.msginfo = msginfo;
2046                 msginfo_update.flags = MSGINFO_UPDATE_FLAGS;
2047                 hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2048                 folder_item_update(msginfo->folder, F_ITEM_UPDATE_MSGCNT);
2049         }
2050 }
2051
2052 /*!
2053  *\brief        check for flags (e.g. mark) in prior msgs of current thread
2054  *
2055  *\param        info Current message
2056  *\param        perm_flags Flags to be checked
2057  *\param        parentmsgs Hash of prior msgs to avoid loops
2058  *
2059  *\return       gboolean TRUE if perm_flags are found
2060  */
2061 static gboolean procmsg_msg_has_flagged_parent_real(MsgInfo *info,
2062                 MsgPermFlags perm_flags, GHashTable *parentmsgs)
2063 {
2064         MsgInfo *tmp;
2065
2066         cm_return_val_if_fail(info != NULL, FALSE);
2067
2068         if (info != NULL && info->folder != NULL && info->inreplyto != NULL) {
2069                 tmp = folder_item_get_msginfo_by_msgid(info->folder,
2070                                 info->inreplyto);
2071                 if (tmp && (tmp->flags.perm_flags & perm_flags)) {
2072                         procmsg_msginfo_free(&tmp);
2073                         return TRUE;
2074                 } else if (tmp != NULL) {
2075                         gboolean result;
2076
2077                         if (g_hash_table_lookup(parentmsgs, info)) {
2078                                 debug_print("loop detected: %d\n",
2079                                         info->msgnum);
2080                                 result = FALSE;
2081                         } else {
2082                                 g_hash_table_insert(parentmsgs, info, "1");
2083                                 result = procmsg_msg_has_flagged_parent_real(
2084                                     tmp, perm_flags, parentmsgs);
2085                         }
2086                         procmsg_msginfo_free(&tmp);
2087                         return result;
2088                 } else {
2089                         return FALSE;
2090                 }
2091         } else
2092                 return FALSE;
2093 }
2094
2095 /*!
2096  *\brief        Callback for cleaning up hash of parentmsgs
2097  */
2098 static gboolean parentmsgs_hash_remove(gpointer key,
2099                             gpointer value,
2100                             gpointer user_data)
2101 {
2102         return TRUE;
2103 }
2104
2105 /*!
2106  *\brief        Set up list of parentmsgs
2107  *              See procmsg_msg_has_flagged_parent_real()
2108  */
2109 gboolean procmsg_msg_has_flagged_parent(MsgInfo *info, MsgPermFlags perm_flags)
2110 {
2111         gboolean result;
2112         static GHashTable *parentmsgs = NULL;
2113
2114         if (parentmsgs == NULL)
2115                 parentmsgs = g_hash_table_new(NULL, NULL);
2116
2117         result = procmsg_msg_has_flagged_parent_real(info, perm_flags, parentmsgs);
2118         g_hash_table_foreach_remove(parentmsgs, parentmsgs_hash_remove, NULL);
2119
2120         return result;
2121 }
2122
2123 /*!
2124  *\brief        Check if msgs prior in thread are marked
2125  *              See procmsg_msg_has_flagged_parent_real()
2126  */
2127 gboolean procmsg_msg_has_marked_parent(MsgInfo *info)
2128 {
2129         return procmsg_msg_has_flagged_parent(info, MSG_MARKED);
2130 }
2131
2132
2133 static GSList *procmsg_find_children_func(MsgInfo *info,
2134                                    GSList *children, GSList *all)
2135 {
2136         GSList *cur;
2137
2138         cm_return_val_if_fail(info!=NULL, children);
2139         if (info->msgid == NULL)
2140                 return children;
2141
2142         for (cur = all; cur != NULL; cur = g_slist_next(cur)) {
2143                 MsgInfo *tmp = (MsgInfo *)cur->data;
2144                 if (tmp->inreplyto && !strcmp(tmp->inreplyto, info->msgid)) {
2145                         /* Check if message is already in the list */
2146                         if ((children == NULL) ||
2147                             (g_slist_index(children, tmp) == -1)) {
2148                                 children = g_slist_prepend(children,
2149                                                 procmsg_msginfo_new_ref(tmp));
2150                                 children = procmsg_find_children_func(tmp,
2151                                                         children,
2152                                                         all);
2153                         }
2154                 }
2155         }
2156         return children;
2157 }
2158
2159 static GSList *procmsg_find_children (MsgInfo *info)
2160 {
2161         GSList *children;
2162         GSList *all, *cur;
2163
2164         cm_return_val_if_fail(info!=NULL, NULL);
2165         all = folder_item_get_msg_list(info->folder);
2166         children = procmsg_find_children_func(info, NULL, all);
2167         if (children != NULL) {
2168                 for (cur = all; cur != NULL; cur = g_slist_next(cur)) {
2169                         /* this will not free the used pointers
2170                            created with procmsg_msginfo_new_ref */
2171                         procmsg_msginfo_free((MsgInfo **)&(cur->data));
2172                 }
2173         }
2174         g_slist_free(all);
2175
2176         return children;
2177 }
2178
2179 static void procmsg_update_unread_children(MsgInfo *info, gboolean newly_marked)
2180 {
2181         GSList *children = procmsg_find_children(info);
2182         GSList *cur;
2183         for (cur = children; cur != NULL; cur = g_slist_next(cur)) {
2184                 MsgInfo *tmp = (MsgInfo *)cur->data;
2185                 if(MSG_IS_UNREAD(tmp->flags) && !MSG_IS_IGNORE_THREAD(tmp->flags)) {
2186                         if(newly_marked)
2187                                 info->folder->unreadmarked_msgs++;
2188                         else
2189                                 info->folder->unreadmarked_msgs--;
2190                         folder_item_update(info->folder, F_ITEM_UPDATE_MSGCNT);
2191                 }
2192                 procmsg_msginfo_free(&tmp);
2193         }
2194         g_slist_free(children);
2195 }
2196
2197 /**
2198  * Set the destination folder for a copy or move operation
2199  *
2200  * \param msginfo The message which's destination folder is changed
2201  * \param to_folder The destination folder for the operation
2202  */
2203 void procmsg_msginfo_set_to_folder(MsgInfo *msginfo, FolderItem *to_folder)
2204 {
2205         if(msginfo->to_folder != NULL) {
2206                 msginfo->to_folder->op_count--;
2207                 folder_item_update(msginfo->to_folder, F_ITEM_UPDATE_MSGCNT);
2208         }
2209         msginfo->to_folder = to_folder;
2210         if(to_folder != NULL) {
2211                 to_folder->op_count++;
2212                 folder_item_update(msginfo->to_folder, F_ITEM_UPDATE_MSGCNT);
2213         }
2214 }
2215
2216 /**
2217  * Apply filtering actions to the msginfo
2218  *
2219  * \param msginfo The MsgInfo describing the message that should be filtered
2220  * \return TRUE if the message was moved and MsgInfo is now invalid,
2221  *         FALSE otherwise
2222  */
2223 static gboolean procmsg_msginfo_filter(MsgInfo *msginfo, PrefsAccount* ac_prefs)
2224 {
2225         MailFilteringData mail_filtering_data;
2226
2227         mail_filtering_data.msginfo = msginfo;
2228         mail_filtering_data.msglist = NULL;
2229         mail_filtering_data.filtered = NULL;
2230         mail_filtering_data.unfiltered = NULL;
2231         mail_filtering_data.account = ac_prefs;
2232
2233         if (!ac_prefs || ac_prefs->filterhook_on_recv)
2234                 if (hooks_invoke(MAIL_FILTERING_HOOKLIST, &mail_filtering_data))
2235                 return TRUE;
2236
2237         /* filter if enabled in prefs or move to inbox if not */
2238         if((filtering_rules != NULL) &&
2239                 filter_message_by_msginfo(filtering_rules, msginfo, ac_prefs,
2240                                 FILTERING_INCORPORATION, NULL)) {
2241                 return TRUE;
2242         }
2243
2244         return FALSE;
2245 }
2246
2247 void procmsg_msglist_filter(GSList *list, PrefsAccount *ac,
2248                             GSList **filtered, GSList **unfiltered,
2249                             gboolean do_filter)
2250 {
2251         GSList *cur, *to_do = NULL;
2252         gint total = 0, curnum = 0;
2253         MailFilteringData mail_filtering_data;
2254
2255         cm_return_if_fail(filtered != NULL);
2256         cm_return_if_fail(unfiltered != NULL);
2257
2258         *filtered = NULL;
2259         *unfiltered = NULL;
2260
2261         if (list == NULL)
2262                 return;
2263
2264         total = g_slist_length(list);
2265
2266         if (!do_filter) {
2267                 *filtered = NULL;
2268                 *unfiltered = g_slist_copy(list);
2269                 return;
2270         }
2271
2272         statusbar_print_all(_("Filtering messages...\n"));
2273
2274         mail_filtering_data.msginfo = NULL;
2275         mail_filtering_data.msglist = list;
2276         mail_filtering_data.filtered = NULL;
2277         mail_filtering_data.unfiltered = NULL;
2278         mail_filtering_data.account = ac;
2279
2280         if (!ac || ac->filterhook_on_recv)
2281         hooks_invoke(MAIL_LISTFILTERING_HOOKLIST, &mail_filtering_data);
2282
2283         if (mail_filtering_data.filtered == NULL &&
2284             mail_filtering_data.unfiltered == NULL) {
2285                 /* nothing happened */
2286                 debug_print(MAIL_LISTFILTERING_HOOKLIST " did nothing. filtering whole list normally.\n");
2287                 to_do = list;
2288         }
2289         if (mail_filtering_data.filtered != NULL) {
2290                 /* keep track of what's been filtered by the hooks */
2291                 debug_print(MAIL_LISTFILTERING_HOOKLIST " filtered some stuff. total %d filtered %d unfilt %d.\n",
2292                         g_slist_length(list),
2293                         g_slist_length(mail_filtering_data.filtered),
2294                         g_slist_length(mail_filtering_data.unfiltered));
2295
2296                 *filtered = g_slist_copy(mail_filtering_data.filtered);
2297         }
2298         if (mail_filtering_data.unfiltered != NULL) {
2299                 /* what the hooks didn't handle will go in filtered or
2300                  * unfiltered in the next loop */
2301                 debug_print(MAIL_LISTFILTERING_HOOKLIST " left unfiltered stuff. total %d filtered %d unfilt %d.\n",
2302                         g_slist_length(list),
2303                         g_slist_length(mail_filtering_data.filtered),
2304                         g_slist_length(mail_filtering_data.unfiltered));
2305                 to_do = mail_filtering_data.unfiltered;
2306         }
2307
2308         for (cur = to_do; cur; cur = cur->next) {
2309                 MsgInfo *info = (MsgInfo *)cur->data;
2310                 if (procmsg_msginfo_filter(info, ac))
2311                         *filtered = g_slist_prepend(*filtered, info);
2312                 else
2313                         *unfiltered = g_slist_prepend(*unfiltered, info);
2314                 statusbar_progress_all(curnum++, total, prefs_common.statusbar_update_step);
2315         }
2316
2317         g_slist_free(mail_filtering_data.filtered);
2318         g_slist_free(mail_filtering_data.unfiltered);
2319
2320         *filtered = g_slist_reverse(*filtered);
2321         *unfiltered = g_slist_reverse(*unfiltered);
2322
2323         statusbar_progress_all(0,0,0);
2324         statusbar_pop_all();
2325 }
2326
2327 MsgInfo *procmsg_msginfo_new_from_mimeinfo(MsgInfo *src_msginfo, MimeInfo *mimeinfo)
2328 {
2329         MsgInfo *tmp_msginfo = NULL;
2330         MsgFlags flags = {0, 0};
2331         gchar *tmpfile = get_tmp_file();
2332         FILE *fp = g_fopen(tmpfile, "wb");
2333
2334         if (!mimeinfo || mimeinfo->type != MIMETYPE_MESSAGE ||
2335             g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
2336                 g_warning("procmsg_msginfo_new_from_mimeinfo(): unsuitable mimeinfo");
2337                 if (fp)
2338                         fclose(fp);
2339                 g_free(tmpfile);
2340                 return NULL;
2341         }
2342
2343         if (fp && procmime_write_mimeinfo(mimeinfo, fp) >= 0) {
2344                 fclose(fp);
2345                 fp = NULL;
2346                 tmp_msginfo = procheader_parse_file(
2347                         tmpfile, flags,
2348                         TRUE, FALSE);
2349         }
2350         if (fp)
2351                 fclose(fp);
2352
2353         if (tmp_msginfo != NULL) {
2354                 if (src_msginfo)
2355                         tmp_msginfo->folder = src_msginfo->folder;
2356                 tmp_msginfo->plaintext_file = g_strdup(tmpfile);
2357         } else {
2358                 g_warning("procmsg_msginfo_new_from_mimeinfo(): Can't generate new msginfo");
2359         }
2360
2361         g_free(tmpfile);
2362
2363         return tmp_msginfo;
2364 }
2365
2366 static GSList *spam_learners = NULL;
2367
2368 void procmsg_register_spam_learner (int (*learn_func)(MsgInfo *info, GSList *list, gboolean spam))
2369 {
2370         if (!g_slist_find(spam_learners, learn_func))
2371                 spam_learners = g_slist_append(spam_learners, learn_func);
2372         if (mainwindow_get_mainwindow()) {
2373                 main_window_set_menu_sensitive(mainwindow_get_mainwindow());
2374                 summary_set_menu_sensitive(
2375                         mainwindow_get_mainwindow()->summaryview);
2376                 toolbar_main_set_sensitive(mainwindow_get_mainwindow());
2377         }
2378 }
2379
2380 void procmsg_unregister_spam_learner (int (*learn_func)(MsgInfo *info, GSList *list, gboolean spam))
2381 {
2382         spam_learners = g_slist_remove(spam_learners, learn_func);
2383         if (mainwindow_get_mainwindow()) {
2384                 main_window_set_menu_sensitive(mainwindow_get_mainwindow());
2385                 summary_set_menu_sensitive(
2386                         mainwindow_get_mainwindow()->summaryview);
2387                 toolbar_main_set_sensitive(mainwindow_get_mainwindow());
2388         }
2389 }
2390
2391 gboolean procmsg_spam_can_learn(void)
2392 {
2393         return g_slist_length(spam_learners) > 0;
2394 }
2395
2396 int procmsg_spam_learner_learn (MsgInfo *info, GSList *list, gboolean spam)
2397 {
2398         GSList *cur = spam_learners;
2399         int ret = 0;
2400         for (; cur; cur = cur->next) {
2401                 int ((*func)(MsgInfo *info, GSList *list, gboolean spam)) = cur->data;
2402                 ret |= func(info, list, spam);
2403         }
2404         return ret;
2405 }
2406
2407 static gchar *spam_folder_item = NULL;
2408 static FolderItem * (*procmsg_spam_get_folder_func)(MsgInfo *msginfo) = NULL;
2409 void procmsg_spam_set_folder (const char *item_identifier, FolderItem *(*spam_get_folder_func)(MsgInfo *info))
2410 {
2411         g_free(spam_folder_item);
2412         if (item_identifier)
2413                 spam_folder_item = g_strdup(item_identifier);
2414         else
2415                 spam_folder_item = NULL;
2416         if (spam_get_folder_func != NULL)
2417                 procmsg_spam_get_folder_func = spam_get_folder_func;
2418         else
2419                 procmsg_spam_get_folder_func = NULL;
2420 }
2421
2422 FolderItem *procmsg_spam_get_folder (MsgInfo *msginfo)
2423 {
2424         FolderItem *item = NULL;
2425
2426         if (procmsg_spam_get_folder_func)
2427                 item = procmsg_spam_get_folder_func(msginfo);
2428         if (item == NULL && spam_folder_item)
2429                 item = folder_find_item_from_identifier(spam_folder_item);
2430         if (item == NULL)
2431                 item = folder_get_default_trash();
2432         return item;
2433 }
2434
2435 static void item_has_queued_mails(FolderItem *item, gpointer data)
2436 {
2437         gboolean *result = (gboolean *)data;
2438         if (*result == TRUE)
2439                 return;
2440         if (folder_has_parent_of_type(item, F_QUEUE)) {
2441                 if (item->total_msgs == 0)
2442                         return;
2443                 else {
2444                         GSList *msglist = folder_item_get_msg_list(item);
2445                         GSList *cur;
2446                         for (cur = msglist; cur; cur = cur->next) {
2447                                 MsgInfo *msginfo = (MsgInfo *)cur->data;
2448                                 if (!MSG_IS_DELETED(msginfo->flags) &&
2449                                     !MSG_IS_LOCKED(msginfo->flags)) {
2450                                         *result = TRUE;
2451                                         break;
2452                                 }
2453                         }
2454                         procmsg_msg_list_free(msglist);
2455                 }
2456         }
2457 }
2458
2459 gboolean procmsg_have_queued_mails_fast (void)
2460 {
2461         gboolean result = FALSE;
2462         folder_func_to_all_folders(item_has_queued_mails, &result);
2463         return result;
2464 }
2465
2466 static void item_has_trashed_mails(FolderItem *item, gpointer data)
2467 {
2468         gboolean *result = (gboolean *)data;
2469         if (*result == TRUE)
2470                 return;
2471         if (folder_has_parent_of_type(item, F_TRASH) && item->total_msgs > 0)
2472                 *result = TRUE;
2473 }
2474
2475 gboolean procmsg_have_trashed_mails_fast (void)
2476 {
2477         gboolean result = FALSE;
2478         folder_func_to_all_folders(item_has_trashed_mails, &result);
2479         return result;
2480 }
2481
2482 gchar *procmsg_msginfo_get_tags_str(MsgInfo *msginfo)
2483 {
2484         GSList *cur = NULL;
2485         gchar *tags = NULL;
2486
2487         if (!msginfo)
2488                 return NULL;
2489
2490         if (msginfo->tags == NULL)
2491                 return NULL;
2492         for (cur = msginfo->tags; cur; cur = cur->next) {
2493                 const gchar *tag = tags_get_tag(GPOINTER_TO_INT(cur->data));
2494                 if (!tag)
2495                         continue;
2496                 if (!tags)
2497                         tags = g_strdup(tag);
2498                 else {
2499                         int olen = strlen(tags);
2500                         int nlen = olen + strlen(tag) + 2 /* strlen(", ") */;
2501                         tags = g_realloc(tags, nlen+1);
2502                         if (!tags)
2503                                 return NULL;
2504                         strcpy(tags+olen, ", ");
2505                         strcpy(tags+olen+2, tag);
2506                         tags[nlen]='\0';
2507                 }
2508         }
2509         return tags;
2510 }
2511
2512 void procmsg_msginfo_update_tags(MsgInfo *msginfo, gboolean set, gint id)
2513 {
2514         GSList changed;
2515
2516         if (id == 0)
2517                 return;
2518
2519         if (!set) {
2520                 msginfo->tags = g_slist_remove(
2521                                         msginfo->tags,
2522                                         GINT_TO_POINTER(id));
2523                 changed.data = GINT_TO_POINTER(id);
2524                 changed.next = NULL;
2525                 folder_item_commit_tags(msginfo->folder, msginfo, NULL, &changed);
2526         } else {
2527                 if (!g_slist_find(msginfo->tags, GINT_TO_POINTER(id))) {
2528                         msginfo->tags = g_slist_append(
2529                                         msginfo->tags,
2530                                         GINT_TO_POINTER(id));
2531                 }
2532                 changed.data = GINT_TO_POINTER(id);
2533                 changed.next = NULL;
2534                 folder_item_commit_tags(msginfo->folder, msginfo, &changed, NULL);
2535         }
2536
2537 }
2538
2539 void procmsg_msginfo_clear_tags(MsgInfo *msginfo)
2540 {
2541         GSList *unset = msginfo->tags;
2542         msginfo->tags = NULL;
2543         folder_item_commit_tags(msginfo->folder, msginfo, NULL, unset);
2544         g_slist_free(unset);
2545 }