src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto
   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 2 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, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <unistd.h>
  32 #include <stdlib.h>
  33
  34 #include "intl.h"
  35 #include "folder.h"
  36 #include "session.h"
  37 #include "imap.h"
  38 #include "news.h"
  39 #include "mh.h"
  40 #include "utils.h"
  41 #include "xml.h"
  42 #include "codeconv.h"
  43 #include "prefs_gtk.h"
  44 #include "account.h"
  45 #include "filtering.h"
  46 #include "procheader.h"
  47 #include "hooks.h"
  48 #include "log.h"
  49 #include "folder_item_prefs.h"
  50 #include "remotefolder.h"
  51
  52 /* Dependecies to be removed ?! */
  53 #include "prefs_common.h"
  54 #include "prefs_account.h"
  55
  56 static GList *folder_list = NULL;
  57 static GSList *class_list = NULL;
  58 static GSList *folder_unloaded_list = NULL;
  59
  60 void folder_init                (Folder         *folder,
  61                                  const gchar    *name);
  62
  63 static gchar *folder_get_list_path      (void);
  64 static GNode *folder_get_xml_node       (Folder         *folder);
  65 static Folder *folder_get_from_xml      (GNode          *node);
  66 static void folder_update_op_count_rec  (GNode          *node);
  67
  68
  69 static void folder_get_persist_prefs_recursive
  70                                         (GNode *node, GHashTable *pptable);
  71 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  72 void folder_item_read_cache             (FolderItem *item);
  73 void folder_item_free_cache             (FolderItem *item);
  74 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  75
  76 void folder_system_init(void)
  77 {
  78         folder_register_class(mh_get_class());
  79         folder_register_class(imap_get_class());
  80         folder_register_class(news_get_class());
  81 }
  82
  83 GSList *folder_get_class_list(void)
  84 {
  85         return class_list;
  86 }
  87
  88 void folder_register_class(FolderClass *klass)
  89 {
  90         debug_print("registering folder class %s\n", klass->idstr);
  91         class_list = g_slist_append(class_list, klass);
  92 }
  93
  94 void folder_unregister_class(FolderClass *klass)
  95 {
  96 /*
  97         GList *folderlist, *cur;
  98 */
  99         debug_print("unregistering folder class %s\n", klass->idstr);
 100 /*
 101         folderlist = g_list_copy(folder_get_list());
 102         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 103                 Folder *folder = (Folder *) cur->data;
 104
 105                 if (folder->klass == klass) {
 106                         GNode *xmlnode = folder_
 107                 }
 108         }
 109 */
 110 }
 111
 112 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 113 {
 114         Folder *folder = NULL;
 115         FolderItem *item;
 116
 117         g_return_val_if_fail(klass != NULL, NULL);
 118
 119         name = name ? name : path;
 120         folder = klass->new_folder(name, path);
 121
 122         /* Create root folder item */
 123         item = folder_item_new(folder, name, NULL);
 124         item->folder = folder;
 125         folder->node = item->node = g_node_new(item);
 126         folder->data = NULL;
 127
 128         return folder;
 129 }
 130
 131 void folder_init(Folder *folder, const gchar *name)
 132 {
 133         g_return_if_fail(folder != NULL);
 134
 135         folder_set_name(folder, name);
 136
 137         /* Init folder data */
 138         folder->account = NULL;
 139         folder->inbox = NULL;
 140         folder->outbox = NULL;
 141         folder->draft = NULL;
 142         folder->queue = NULL;
 143         folder->trash = NULL;
 144 }
 145
 146 void folder_destroy(Folder *folder)
 147 {
 148         FolderUpdateData hookdata;
 149
 150         g_return_if_fail(folder != NULL);
 151         g_return_if_fail(folder->klass->destroy_folder != NULL);
 152
 153         folder_list = g_list_remove(folder_list, folder);
 154
 155         hookdata.folder = folder;
 156         hookdata.update_flags = FOLDER_DESTROY_FOLDER;
 157         hookdata.item = NULL;
 158         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 159
 160         folder_tree_destroy(folder);
 161
 162         folder->klass->destroy_folder(folder);
 163
 164         g_free(folder->name);
 165         g_free(folder);
 166
 167         folder_write_list();
 168 }
 169
 170 void folder_set_xml(Folder *folder, XMLTag *tag)
 171 {
 172         GList *cur;
 173         FolderItem *rootitem = NULL;
 174
 175         if ((folder->node != NULL) && (folder->node->data != NULL))
 176                 rootitem = (FolderItem *) folder->node->data;
 177
 178         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 179                 XMLAttr *attr = (XMLAttr *) cur->data;
 180
 181                 if (!attr || !attr->name || !attr->value) continue;
 182                 if (!strcmp(attr->name, "name")) {
 183                         if (folder->name != NULL)
 184                                 g_free(folder->name);
 185                         folder->name = g_strdup(attr->value);
 186                         if (rootitem != NULL) {
 187                                 if (rootitem->name != NULL)
 188                                         g_free(rootitem->name);
 189                                 rootitem->name = g_strdup(attr->value);
 190                         }
 191                 } else if (!strcmp(attr->name, "account_id")) {
 192                         PrefsAccount *account;
 193
 194                         account = account_find_from_id(atoi(attr->value));
 195                         if (!account)
 196                                 g_warning("account_id: %s not found\n", attr->value);
 197                         else {
 198                                 folder->account = account;
 199                                 account->folder = folder;
 200                         }
 201                 } else if (!strcmp(attr->name, "collapsed")) {
 202                         if (rootitem != NULL)
 203                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 204                 }
 205         }
 206 }
 207
 208 XMLTag *folder_get_xml(Folder *folder)
 209 {
 210         XMLTag *tag;
 211
 212         tag = g_new0(XMLTag, 1);
 213         tag->tag = g_strdup("folder");
 214
 215         if (folder->name)
 216                 xml_tag_add_attr(tag, "name", g_strdup(folder->name));
 217         if (folder->account)
 218                 xml_tag_add_attr(tag, "account_id", g_strdup_printf("%d", folder->account->account_id));
 219         if (folder->node && folder->node->data) {
 220                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 221
 222                 xml_tag_add_attr(tag, "collapsed", g_strdup(rootitem->collapsed ? "1" : "0"));
 223         }
 224
 225         return tag;
 226 }
 227
 228 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 229 {
 230         FolderItem *item = NULL;
 231
 232         if (folder->klass->item_new) {
 233                 item = folder->klass->item_new(folder);
 234         } else {
 235                 item = g_new0(FolderItem, 1);
 236         }
 237
 238         g_return_val_if_fail(item != NULL, NULL);
 239
 240         item->stype = F_NORMAL;
 241         item->name = g_strdup(name);
 242         item->path = g_strdup(path);
 243         item->mtime = 0;
 244         item->new_msgs = 0;
 245         item->unread_msgs = 0;
 246         item->unreadmarked_msgs = 0;
 247         item->total_msgs = 0;
 248         item->last_num = -1;
 249         item->cache = NULL;
 250         item->no_sub = FALSE;
 251         item->no_select = FALSE;
 252         item->collapsed = FALSE;
 253         item->thread_collapsed = FALSE;
 254         item->threaded  = TRUE;
 255         item->ret_rcpt  = FALSE;
 256         item->opened    = FALSE;
 257         item->node = NULL;
 258         item->folder = NULL;
 259         item->account = NULL;
 260         item->apply_sub = FALSE;
 261         item->mark_queue = NULL;
 262         item->data = NULL;
 263
 264         item->prefs = folder_item_prefs_new();
 265
 266         return item;
 267 }
 268
 269 void folder_item_append(FolderItem *parent, FolderItem *item)
 270 {
 271         g_return_if_fail(parent != NULL);
 272         g_return_if_fail(parent->folder != NULL);
 273         g_return_if_fail(parent->node != NULL);
 274         g_return_if_fail(item != NULL);
 275
 276         item->folder = parent->folder;
 277         item->node = g_node_append_data(parent->node, item);
 278 }
 279
 280 static gboolean folder_item_remove_func(GNode *node, gpointer data)
 281 {
 282         FolderItem *item = FOLDER_ITEM(node->data);
 283         FolderUpdateData hookdata;
 284
 285         if (item->cache != NULL) {
 286                 msgcache_destroy(item->cache);
 287                 item->cache = NULL;
 288         }
 289
 290         hookdata.folder = item->folder;
 291         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 292         hookdata.item = item;
 293         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 294
 295         folder_item_destroy(item);
 296
 297         return FALSE;
 298 }
 299
 300 void folder_item_remove(FolderItem *item)
 301 {
 302         GNode *node;
 303
 304         g_return_if_fail(item != NULL);
 305         g_return_if_fail(item->folder != NULL);
 306         g_return_if_fail(item->node != NULL);
 307
 308         node = item->node;
 309
 310         if (item->folder->node == node)
 311                 item->folder->node = NULL;
 312
 313         g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 314                         folder_item_remove_func, NULL);
 315         g_node_destroy(node);
 316 }
 317
 318 void folder_item_remove_children(FolderItem *item)
 319 {
 320         GNode *node, *next;
 321
 322         g_return_if_fail(item != NULL);
 323         g_return_if_fail(item->folder != NULL);
 324         g_return_if_fail(item->node != NULL);
 325
 326         node = item->node->children;
 327         while (node != NULL) {
 328                 next = node->next;
 329                 folder_item_remove(FOLDER_ITEM(node->data));
 330                 node = next;
 331         }
 332 }
 333
 334 void folder_item_destroy(FolderItem *item)
 335 {
 336         Folder *folder;
 337
 338         g_return_if_fail(item != NULL);
 339
 340         folder = item->folder;
 341         if (folder) {
 342                 if (folder->inbox == item)
 343                         folder->inbox = NULL;
 344                 else if (folder->outbox == item)
 345                         folder->outbox = NULL;
 346                 else if (folder->draft == item)
 347                         folder->draft = NULL;
 348                 else if (folder->queue == item)
 349                         folder->queue = NULL;
 350                 else if (folder->trash == item)
 351                         folder->trash = NULL;
 352         }
 353
 354         if (item->cache)
 355                 folder_item_free_cache(item);
 356         if (item->prefs)
 357                 folder_item_prefs_free(item->prefs);
 358         g_free(item->name);
 359         g_free(item->path);
 360
 361         if (item->folder != NULL) {
 362                 if(item->folder->klass->item_destroy) {
 363                         item->folder->klass->item_destroy(item->folder, item);
 364                 } else {
 365                         g_free(item);
 366                 }
 367         }
 368 }
 369
 370 FolderItem *folder_item_parent(FolderItem *item)
 371 {
 372         g_return_val_if_fail(item != NULL, NULL);
 373         g_return_val_if_fail(item->node != NULL, NULL);
 374
 375         if (item->node->parent == NULL)
 376                 return NULL;
 377         return (FolderItem *) item->node->parent->data;
 378 }
 379
 380 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 381 {
 382         GList *cur;
 383
 384         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 385                 XMLAttr *attr = (XMLAttr *) cur->data;
 386
 387                 if (!attr || !attr->name || !attr->value) continue;
 388                 if (!strcmp(attr->name, "type")) {
 389                         if (!strcasecmp(attr->value, "normal"))
 390                                 item->stype = F_NORMAL;
 391                         else if (!strcasecmp(attr->value, "inbox"))
 392                                 item->stype = F_INBOX;
 393                         else if (!strcasecmp(attr->value, "outbox"))
 394                                 item->stype = F_OUTBOX;
 395                         else if (!strcasecmp(attr->value, "draft"))
 396                                 item->stype = F_DRAFT;
 397                         else if (!strcasecmp(attr->value, "queue"))
 398                                 item->stype = F_QUEUE;
 399                         else if (!strcasecmp(attr->value, "trash"))
 400                                 item->stype = F_TRASH;
 401                 } else if (!strcmp(attr->name, "name")) {
 402                         if (item->name != NULL)
 403                                 g_free(item->name);
 404                         item->name = g_strdup(attr->value);
 405                 } else if (!strcmp(attr->name, "path")) {
 406                         if (item->path != NULL)
 407                                 g_free(item->path);
 408                         item->path = g_strdup(attr->value);
 409                 } else if (!strcmp(attr->name, "mtime"))
 410                         item->mtime = strtoul(attr->value, NULL, 10);
 411                 else if (!strcmp(attr->name, "new"))
 412                         item->new_msgs = atoi(attr->value);
 413                 else if (!strcmp(attr->name, "unread"))
 414                         item->unread_msgs = atoi(attr->value);
 415                 else if (!strcmp(attr->name, "unreadmarked"))
 416                         item->unreadmarked_msgs = atoi(attr->value);
 417                 else if (!strcmp(attr->name, "total"))
 418                         item->total_msgs = atoi(attr->value);
 419                 else if (!strcmp(attr->name, "no_sub"))
 420                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 421                 else if (!strcmp(attr->name, "no_select"))
 422                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 423                 else if (!strcmp(attr->name, "collapsed"))
 424                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 425                 else if (!strcmp(attr->name, "thread_collapsed"))
 426                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 427                 else if (!strcmp(attr->name, "threaded"))
 428                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 429                 else if (!strcmp(attr->name, "hidereadmsgs"))
 430                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 431                 else if (!strcmp(attr->name, "reqretrcpt"))
 432                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 433                 else if (!strcmp(attr->name, "sort_key")) {
 434                         if (!strcmp(attr->value, "none"))
 435                                 item->sort_key = SORT_BY_NONE;
 436                         else if (!strcmp(attr->value, "number"))
 437                                 item->sort_key = SORT_BY_NUMBER;
 438                         else if (!strcmp(attr->value, "size"))
 439                                 item->sort_key = SORT_BY_SIZE;
 440                         else if (!strcmp(attr->value, "date"))
 441                                 item->sort_key = SORT_BY_DATE;
 442                         else if (!strcmp(attr->value, "from"))
 443                                 item->sort_key = SORT_BY_FROM;
 444                         else if (!strcmp(attr->value, "subject"))
 445                                 item->sort_key = SORT_BY_SUBJECT;
 446                         else if (!strcmp(attr->value, "score"))
 447                                 item->sort_key = SORT_BY_SCORE;
 448                         else if (!strcmp(attr->value, "label"))
 449                                 item->sort_key = SORT_BY_LABEL;
 450                         else if (!strcmp(attr->value, "mark"))
 451                                 item->sort_key = SORT_BY_MARK;
 452                         else if (!strcmp(attr->value, "unread"))
 453                                 item->sort_key = SORT_BY_STATUS;
 454                         else if (!strcmp(attr->value, "mime"))
 455                                 item->sort_key = SORT_BY_MIME;
 456                         else if (!strcmp(attr->value, "to"))
 457                                 item->sort_key = SORT_BY_TO;
 458                         else if (!strcmp(attr->value, "locked"))
 459                                 item->sort_key = SORT_BY_LOCKED;
 460                 } else if (!strcmp(attr->name, "sort_type")) {
 461                         if (!strcmp(attr->value, "ascending"))
 462                                 item->sort_type = SORT_ASCENDING;
 463                         else
 464                                 item->sort_type = SORT_DESCENDING;
 465                 } else if (!strcmp(attr->name, "account_id")) {
 466                         PrefsAccount *account;
 467
 468                         account = account_find_from_id(atoi(attr->value));
 469                         if (!account)
 470                                 g_warning("account_id: %s not found\n", attr->value);
 471                         else
 472                                 item->account = account;
 473                 } else if (!strcmp(attr->name, "apply_sub"))
 474                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 475         }
 476 }
 477
 478 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 479 {
 480         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 481                                                  "draft", "queue", "trash"};
 482         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 483                                         "from", "subject", "score", "label",
 484                                         "mark", "unread", "mime", "to",
 485                                         "locked"};
 486         XMLTag *tag;
 487
 488         tag = g_new0(XMLTag, 1);
 489         tag->tag = g_strdup("folderitem");
 490
 491         xml_tag_add_attr(tag, "type", g_strdup(folder_item_stype_str[item->stype]));
 492         if (item->name)
 493                 xml_tag_add_attr(tag, "name", g_strdup(item->name));
 494         if (item->path)
 495                 xml_tag_add_attr(tag, "path", g_strdup(item->path));
 496         if (item->no_sub)
 497                 xml_tag_add_attr(tag, "no_sub", g_strdup("1"));
 498         if (item->no_select)
 499                 xml_tag_add_attr(tag, "no_select", g_strdup("1"));
 500         xml_tag_add_attr(tag, "collapsed", g_strdup(item->collapsed && item->node->children ? "1" : "0"));
 501         xml_tag_add_attr(tag, "thread_collapsed", g_strdup(item->thread_collapsed ? "1" : "0"));
 502         xml_tag_add_attr(tag, "threaded", g_strdup(item->threaded ? "1" : "0"));
 503         xml_tag_add_attr(tag, "hidereadmsgs", g_strdup(item->hide_read_msgs ? "1" : "0"));
 504         if (item->ret_rcpt)
 505                 xml_tag_add_attr(tag, "reqretrcpt", g_strdup("1"));
 506
 507         if (item->sort_key != SORT_BY_NONE) {
 508                 xml_tag_add_attr(tag, "sort_key", g_strdup(sort_key_str[item->sort_key]));
 509                 xml_tag_add_attr(tag, "sort_type", g_strdup(item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 510         }
 511
 512         xml_tag_add_attr(tag, "mtime", g_strdup_printf("%ld", (unsigned long int) item->mtime));
 513         xml_tag_add_attr(tag, "new", g_strdup_printf("%d", item->new_msgs));
 514         xml_tag_add_attr(tag, "unread", g_strdup_printf("%d", item->unread_msgs));
 515         xml_tag_add_attr(tag, "unreadmarked", g_strdup_printf("%d", item->unreadmarked_msgs));
 516         xml_tag_add_attr(tag, "total", g_strdup_printf("%d", item->total_msgs));
 517
 518         if (item->account)
 519                 xml_tag_add_attr(tag, "account_id", g_strdup_printf("%d", item->account->account_id));
 520         if (item->apply_sub)
 521                 xml_tag_add_attr(tag, "apply_sub", g_strdup("1"));
 522
 523         return tag;
 524 }
 525
 526 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 527 {
 528         g_return_if_fail(folder != NULL);
 529
 530         folder->ui_func = func;
 531         folder->ui_func_data = data;
 532 }
 533
 534 void folder_set_name(Folder *folder, const gchar *name)
 535 {
 536         g_return_if_fail(folder != NULL);
 537
 538         g_free(folder->name);
 539         folder->name = name ? g_strdup(name) : NULL;
 540         if (folder->node && folder->node->data) {
 541                 FolderItem *item = (FolderItem *)folder->node->data;
 542
 543                 g_free(item->name);
 544                 item->name = name ? g_strdup(name) : NULL;
 545         }
 546 }
 547
 548 gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 549         FolderItem *item = (FolderItem *) node->data;
 550
 551         folder_item_destroy(item);
 552         return FALSE;
 553 }
 554
 555 void folder_tree_destroy(Folder *folder)
 556 {
 557         GNode *node;
 558
 559         g_return_if_fail(folder != NULL);
 560
 561         node = folder->node;
 562
 563         prefs_filtering_clear_folder(folder);
 564
 565         if (node != NULL) {
 566                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 567                                 folder_tree_destroy_func, NULL);
 568                 g_node_destroy(node);
 569                 folder->node = NULL;
 570         }
 571 }
 572
 573 void folder_add(Folder *folder)
 574 {
 575         Folder *cur_folder;
 576         GList *cur;
 577         gint i;
 578         FolderUpdateData hookdata;
 579
 580         g_return_if_fail(folder != NULL);
 581
 582         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 583                 cur_folder = FOLDER(cur->data);
 584                 if (FOLDER_TYPE(folder) == F_MH) {
 585                         if (FOLDER_TYPE(cur_folder) != F_MH) break;
 586                 } else if (FOLDER_TYPE(folder) == F_MBOX) {
 587                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 588                             FOLDER_TYPE(cur_folder) != F_MBOX) break;
 589                 } else if (FOLDER_TYPE(folder) == F_IMAP) {
 590                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 591                             FOLDER_TYPE(cur_folder) != F_MBOX &&
 592                             FOLDER_TYPE(cur_folder) != F_IMAP) break;
 593                 } else if (FOLDER_TYPE(folder) == F_NEWS) {
 594                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 595                             FOLDER_TYPE(cur_folder) != F_MBOX &&
 596                             FOLDER_TYPE(cur_folder) != F_IMAP &&
 597                             FOLDER_TYPE(cur_folder) != F_NEWS) break;
 598                 }
 599         }
 600
 601         hookdata.folder = folder;
 602         hookdata.update_flags = FOLDER_NEW_FOLDER;
 603         hookdata.item = NULL;
 604         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 605
 606         folder_list = g_list_insert(folder_list, folder, i);
 607 }
 608
 609 GList *folder_get_list(void)
 610 {
 611         return folder_list;
 612 }
 613
 614 gint folder_read_list(void)
 615 {
 616         GNode *node, *cur;
 617         XMLNode *xmlnode;
 618         gchar *path;
 619
 620         path = folder_get_list_path();
 621         if (!is_file_exist(path)) return -1;
 622         node = xml_parse_file(path);
 623         if (!node) return -1;
 624
 625         xmlnode = node->data;
 626         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 627                 g_warning("wrong folder list\n");
 628                 xml_free_tree(node);
 629                 return -1;
 630         }
 631
 632         cur = node->children;
 633         while (cur != NULL) {
 634                 Folder *folder;
 635
 636                 folder = folder_get_from_xml(cur);
 637                 if (folder != NULL)
 638                         folder_add(folder);
 639                 else
 640                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 641                                 (gpointer) xml_tree_copy(cur));
 642                 cur = cur->next;
 643         }
 644
 645         xml_free_tree(node);
 646         if (folder_list)
 647                 return 0;
 648         else
 649                 return -1;
 650 }
 651
 652 void folder_write_list(void)
 653 {
 654         GList *list;
 655         GSList *slist;
 656         Folder *folder;
 657         gchar *path;
 658         PrefFile *pfile;
 659         GNode *rootnode;
 660         XMLNode *xmlnode;
 661         XMLTag *tag;
 662
 663         path = folder_get_list_path();
 664         if ((pfile = prefs_write_open(path)) == NULL) return;
 665
 666         fprintf(pfile->fp, "<?xml version=\"1.0\" encoding=\"%s\"?>\n",
 667                 conv_get_current_charset_str());
 668         tag = g_new0(XMLTag, 1);
 669         tag->tag = g_strdup("folderlist");
 670         tag->attr = NULL;
 671
 672         xmlnode = g_new0(XMLNode, 1);
 673         xmlnode->tag = tag;
 674         xmlnode->element = NULL;
 675
 676         rootnode = g_node_new(xmlnode);
 677
 678         for (list = folder_list; list != NULL; list = list->next) {
 679                 GNode *node;
 680
 681                 folder = list->data;
 682                 node = folder_get_xml_node(folder);
 683                 if (node != NULL)
 684                         g_node_append(rootnode, node);
 685         }
 686
 687         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 688                 GNode *node = (GNode *) slist->data;
 689
 690                 g_node_append(rootnode, xml_tree_copy(node));
 691         }
 692
 693         xml_write_tree(rootnode, pfile->fp);
 694
 695         if (prefs_file_close(pfile) < 0)
 696                 g_warning("failed to write folder list.\n");
 697
 698         xml_free_tree(rootnode);
 699 }
 700
 701 gboolean folder_scan_tree_func(GNode *node, gpointer data)
 702 {
 703         GHashTable *pptable = (GHashTable *)data;
 704         FolderItem *item = (FolderItem *)node->data;
 705
 706         folder_item_restore_persist_prefs(item, pptable);
 707         folder_item_scan_full(item, FALSE);
 708
 709         return FALSE;
 710 }
 711
 712 void folder_scan_tree(Folder *folder)
 713 {
 714         GHashTable *pptable;
 715         FolderUpdateData hookdata;
 716
 717         if (!folder->klass->scan_tree)
 718                 return;
 719
 720         pptable = folder_persist_prefs_new(folder);
 721
 722         /*
 723          * should be changed and tree update should be done without
 724          * destroying the tree first
 725          */
 726         folder_tree_destroy(folder);
 727         folder->klass->scan_tree(folder);
 728
 729         hookdata.folder = folder;
 730         hookdata.update_flags = FOLDER_TREE_CHANGED;
 731         hookdata.item = NULL;
 732         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 733
 734         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 735         folder_persist_prefs_free(pptable);
 736
 737         prefs_matcher_read_config();
 738
 739         folder_write_list();
 740 }
 741
 742 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 743 {
 744         FolderItem *new_item;
 745         FolderUpdateData hookdata;
 746
 747         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 748         if (new_item) {
 749                 new_item->cache = msgcache_new();
 750
 751                 hookdata.folder = new_item->folder;
 752                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_NEW_FOLDERITEM;
 753                 hookdata.item = new_item;
 754                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 755         }
 756
 757         return new_item;
 758 }
 759
 760 struct TotalMsgCount
 761 {
 762         guint new_msgs;
 763         guint unread_msgs;
 764         guint unreadmarked_msgs;
 765         guint total_msgs;
 766 };
 767
 768 struct FuncToAllFoldersData
 769 {
 770         FolderItemFunc  function;
 771         gpointer        data;
 772 };
 773
 774 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
 775 {
 776         FolderItem *item;
 777         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
 778
 779         g_return_val_if_fail(node->data != NULL, FALSE);
 780
 781         item = FOLDER_ITEM(node->data);
 782         g_return_val_if_fail(item != NULL, FALSE);
 783
 784         function_data->function(item, function_data->data);
 785
 786         return FALSE;
 787 }
 788
 789 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
 790 {
 791         GList *list;
 792         Folder *folder;
 793         struct FuncToAllFoldersData function_data;
 794
 795         function_data.function = function;
 796         function_data.data = data;
 797
 798         for (list = folder_list; list != NULL; list = list->next) {
 799                 folder = FOLDER(list->data);
 800                 if (folder->node)
 801                         g_node_traverse(folder->node, G_PRE_ORDER,
 802                                         G_TRAVERSE_ALL, -1,
 803                                         folder_func_to_all_folders_func,
 804                                         &function_data);
 805         }
 806 }
 807
 808 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
 809 {
 810         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
 811
 812         count->new_msgs += item->new_msgs;
 813         count->unread_msgs += item->unread_msgs;
 814         count->unreadmarked_msgs += item->unreadmarked_msgs;
 815         count->total_msgs += item->total_msgs;
 816 }
 817
 818 struct TotalMsgStatus
 819 {
 820         guint new;
 821         guint unread;
 822         guint total;
 823         GString *str;
 824 };
 825
 826 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
 827 {
 828         FolderItem *item;
 829         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
 830         gchar *id;
 831
 832         g_return_val_if_fail(node->data != NULL, FALSE);
 833
 834         item = FOLDER_ITEM(node->data);
 835
 836         if (!item->path) return FALSE;
 837
 838         status->new += item->new_msgs;
 839         status->unread += item->unread_msgs;
 840         status->total += item->total_msgs;
 841
 842         if (status->str) {
 843                 id = folder_item_get_identifier(item);
 844                 g_string_sprintfa(status->str, "%5d %5d %5d %s\n",
 845                                   item->new_msgs, item->unread_msgs,
 846                                   item->total_msgs, id);
 847                 g_free(id);
 848         }
 849
 850         return FALSE;
 851  }
 852
 853 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
 854                                        guint *total)
 855 {
 856         GList *list;
 857         Folder *folder;
 858         struct TotalMsgStatus status;
 859
 860         status.new = status.unread = status.total = 0;
 861         status.str = str;
 862
 863         debug_print("Counting total number of messages...\n");
 864
 865         for (list = folder_list; list != NULL; list = list->next) {
 866                 folder = FOLDER(list->data);
 867                 if (folder->node)
 868                         g_node_traverse(folder->node, G_PRE_ORDER,
 869                                         G_TRAVERSE_ALL, -1,
 870                                         folder_get_status_full_all_func,
 871                                         &status);
 872         }
 873
 874         *new = status.new;
 875         *unread = status.unread;
 876         *total = status.total;
 877 }
 878
 879 gchar *folder_get_status(GPtrArray *folders, gboolean full)
 880 {
 881         guint new, unread, total;
 882         GString *str;
 883         gint i;
 884         gchar *ret;
 885
 886         new = unread = total = 0;
 887
 888         str = g_string_new(NULL);
 889
 890         if (folders) {
 891                 for (i = 0; i < folders->len; i++) {
 892                         FolderItem *item;
 893
 894                         item = g_ptr_array_index(folders, i);
 895                         new += item->new_msgs;
 896                         unread += item->unread_msgs;
 897                         total += item->total_msgs;
 898
 899                         if (full) {
 900                                 gchar *id;
 901
 902                                 id = folder_item_get_identifier(item);
 903                                 g_string_sprintfa(str, "%5d %5d %5d %s\n",
 904                                                   item->new_msgs, item->unread_msgs,
 905                                                   item->total_msgs, id);
 906                                 g_free(id);
 907                         }
 908                 }
 909         } else {
 910                 folder_get_status_full_all(full ? str : NULL,
 911                                            &new, &unread, &total);
 912         }
 913
 914         if (full)
 915                 g_string_sprintfa(str, "%5d %5d %5d\n", new, unread, total);
 916         else
 917                 g_string_sprintfa(str, "%d %d %d\n", new, unread, total);
 918
 919         ret = str->str;
 920         g_string_free(str, FALSE);
 921
 922         return ret;
 923 }
 924
 925 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs, guint *unreadmarked_msgs, guint *total_msgs)
 926 {
 927         struct TotalMsgCount count;
 928
 929         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
 930
 931         debug_print("Counting total number of messages...\n");
 932
 933         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
 934
 935         *new_msgs = count.new_msgs;
 936         *unread_msgs = count.unread_msgs;
 937         *unreadmarked_msgs = count.unreadmarked_msgs;
 938         *total_msgs = count.total_msgs;
 939 }
 940
 941 Folder *folder_find_from_path(const gchar *path)
 942 {
 943         GList *list;
 944         Folder *folder;
 945
 946         for (list = folder_list; list != NULL; list = list->next) {
 947                 folder = list->data;
 948                 if ((FOLDER_TYPE(folder) == F_MH ||
 949                      FOLDER_TYPE(folder) == F_MBOX) &&
 950                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
 951                         return folder;
 952         }
 953
 954         return NULL;
 955 }
 956
 957 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
 958 {
 959         GList *list;
 960         Folder *folder;
 961
 962         for (list = folder_list; list != NULL; list = list->next) {
 963                 folder = list->data;
 964                 if (folder->klass == klass &&
 965                     strcmp2(name, folder->name) == 0)
 966                         return folder;
 967         }
 968
 969         return NULL;
 970 }
 971
 972 static gboolean folder_item_find_func(GNode *node, gpointer data)
 973 {
 974         FolderItem *item = node->data;
 975         gpointer *d = data;
 976         const gchar *path = d[0];
 977
 978         if (path_cmp(path, item->path) != 0)
 979                 return FALSE;
 980
 981         d[1] = item;
 982
 983         return TRUE;
 984 }
 985
 986 FolderItem *folder_find_item_from_path(const gchar *path)
 987 {
 988         Folder *folder;
 989         gpointer d[2];
 990
 991         folder = folder_get_default_folder();
 992         g_return_val_if_fail(folder != NULL, NULL);
 993
 994         d[0] = (gpointer)path;
 995         d[1] = NULL;
 996         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 997                         folder_item_find_func, d);
 998         return d[1];
 999 }
1000
1001 FolderClass *folder_get_class_from_string(const gchar *str)
1002 {
1003         GSList *classlist;
1004
1005         classlist = folder_get_class_list();
1006         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1007                 FolderClass *class = (FolderClass *) classlist->data;
1008                 if (g_strcasecmp(class->idstr, str) == 0)
1009                         return class;
1010         }
1011
1012         return NULL;
1013 }
1014
1015 gchar *folder_get_identifier(Folder *folder)
1016 {
1017         gchar *type_str;
1018
1019         g_return_val_if_fail(folder != NULL, NULL);
1020
1021         type_str = folder->klass->idstr;
1022         return g_strconcat("#", type_str, "/", folder->name, NULL);
1023 }
1024
1025 gchar *folder_item_get_identifier(FolderItem *item)
1026 {
1027         gchar *id;
1028         gchar *folder_id;
1029
1030         g_return_val_if_fail(item != NULL, NULL);
1031         g_return_val_if_fail(item->path != NULL, NULL);
1032
1033         folder_id = folder_get_identifier(item->folder);
1034         id = g_strconcat(folder_id, "/", item->path, NULL);
1035         g_free(folder_id);
1036
1037         return id;
1038 }
1039
1040 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1041 {
1042         Folder *folder;
1043         gpointer d[2];
1044         gchar *str;
1045         gchar *p;
1046         gchar *name;
1047         gchar *path;
1048         FolderClass *class;
1049
1050         g_return_val_if_fail(identifier != NULL, NULL);
1051
1052         if (*identifier != '#')
1053                 return folder_find_item_from_path(identifier);
1054
1055         Xstrdup_a(str, identifier, return NULL);
1056
1057         p = strchr(str, '/');
1058         if (!p)
1059                 return folder_find_item_from_path(identifier);
1060         *p = '\0';
1061         p++;
1062         class = folder_get_class_from_string(&str[1]);
1063         if (class == NULL)
1064                 return folder_find_item_from_path(identifier);
1065
1066         name = p;
1067         p = strchr(p, '/');
1068         if (!p)
1069                 return folder_find_item_from_path(identifier);
1070         *p = '\0';
1071         p++;
1072
1073         folder = folder_find_from_name(name, class);
1074         if (!folder)
1075                 return folder_find_item_from_path(identifier);
1076
1077         path = p;
1078
1079         d[0] = (gpointer)path;
1080         d[1] = NULL;
1081         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1082                         folder_item_find_func, d);
1083         return d[1];
1084 }
1085
1086 /**
1087  * Get a displayable name for a FolderItem
1088  *
1089  * \param item FolderItem for that a name should be created
1090  * \return Displayable name for item, returned string has to
1091  *         be freed
1092  */
1093 gchar *folder_item_get_name(FolderItem *item)
1094 {
1095         gchar *name = NULL;
1096
1097         g_return_val_if_fail(item != NULL, g_strdup(""));
1098
1099         switch (item->stype) {
1100         case F_INBOX:
1101                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1102                                 item->name);
1103                 break;
1104         case F_OUTBOX:
1105                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1106                                 item->name);
1107                 break;
1108         case F_QUEUE:
1109                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1110                                 item->name);
1111                 break;
1112         case F_TRASH:
1113                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1114                                 item->name);
1115                 break;
1116         case F_DRAFT:
1117                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1118                                 item->name);
1119                 break;
1120         default:
1121                 break;
1122         }
1123
1124         if (name == NULL) {
1125                 /*
1126                  * should probably be done by a virtual function,
1127                  * the folder knows the ui string and how to abbrev
1128                 */
1129                 if (folder_item_parent(item) == NULL) {
1130                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1131                 } else {
1132                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1133                             item->path && !strcmp2(item->name, item->path))
1134                                 name = get_abbrev_newsgroup_name
1135                                         (item->path,
1136                                          prefs_common.ng_abbrev_len);
1137                         else
1138                                 name = g_strdup(item->name);
1139                 }
1140         }
1141
1142         if (name == NULL)
1143                 name = g_strdup("");
1144
1145         return name;
1146 }
1147
1148 Folder *folder_get_default_folder(void)
1149 {
1150         return folder_list ? FOLDER(folder_list->data) : NULL;
1151 }
1152
1153 FolderItem *folder_get_default_inbox(void)
1154 {
1155         Folder *folder;
1156
1157         if (!folder_list) return NULL;
1158         folder = FOLDER(folder_list->data);
1159         g_return_val_if_fail(folder != NULL, NULL);
1160         return folder->inbox;
1161 }
1162
1163 FolderItem *folder_get_default_outbox(void)
1164 {
1165         Folder *folder;
1166
1167         if (!folder_list) return NULL;
1168         folder = FOLDER(folder_list->data);
1169         g_return_val_if_fail(folder != NULL, NULL);
1170         return folder->outbox;
1171 }
1172
1173 FolderItem *folder_get_default_draft(void)
1174 {
1175         Folder *folder;
1176
1177         if (!folder_list) return NULL;
1178         folder = FOLDER(folder_list->data);
1179         g_return_val_if_fail(folder != NULL, NULL);
1180         return folder->draft;
1181 }
1182
1183 FolderItem *folder_get_default_queue(void)
1184 {
1185         Folder *folder;
1186
1187         if (!folder_list) return NULL;
1188         folder = FOLDER(folder_list->data);
1189         g_return_val_if_fail(folder != NULL, NULL);
1190         return folder->queue;
1191 }
1192
1193 FolderItem *folder_get_default_trash(void)
1194 {
1195         Folder *folder;
1196
1197         if (!folder_list) return NULL;
1198         folder = FOLDER(folder_list->data);
1199         g_return_val_if_fail(folder != NULL, NULL);
1200         return folder->trash;
1201 }
1202
1203 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1204 {                                                               \
1205         if (!folder->member) {                                  \
1206                 item = folder_item_new(folder, dir, dir);       \
1207                 item->stype = type;                             \
1208                 folder_item_append(rootitem, item);             \
1209                 folder->member = item;                          \
1210         }                                                       \
1211 }
1212
1213 void folder_set_missing_folders(void)
1214 {
1215         Folder *folder;
1216         FolderItem *rootitem;
1217         FolderItem *item;
1218         GList *list;
1219
1220         for (list = folder_list; list != NULL; list = list->next) {
1221                 folder = list->data;
1222                 if (FOLDER_TYPE(folder) != F_MH) continue;
1223                 rootitem = FOLDER_ITEM(folder->node->data);
1224                 g_return_if_fail(rootitem != NULL);
1225
1226                 if (folder->inbox && folder->outbox && folder->draft &&
1227                     folder->queue && folder->trash)
1228                         continue;
1229
1230                 if (folder->klass->create_tree(folder) < 0) {
1231                         g_warning("%s: can't create the folder tree.\n",
1232                                   LOCAL_FOLDER(folder)->rootpath);
1233                         continue;
1234                 }
1235
1236                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1237                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1238                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1239                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1240                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1241         }
1242 }
1243
1244 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1245 {
1246         FolderItem *item = node->data;
1247         PrefsAccount *account = data;
1248
1249         if (item->account == account)
1250                 item->account = NULL;
1251
1252         return FALSE;
1253 }
1254
1255 void folder_unref_account_all(PrefsAccount *account)
1256 {
1257         Folder *folder;
1258         GList *list;
1259
1260         if (!account) return;
1261
1262         for (list = folder_list; list != NULL; list = list->next) {
1263                 folder = list->data;
1264                 if (folder->account == account)
1265                         folder->account = NULL;
1266                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1267                                 folder_unref_account_func, account);
1268         }
1269 }
1270
1271 #undef CREATE_FOLDER_IF_NOT_EXIST
1272
1273 gchar *folder_item_get_path(FolderItem *item)
1274 {
1275         Folder *folder;
1276
1277         g_return_val_if_fail(item != NULL, NULL);
1278         folder = item->folder;
1279         g_return_val_if_fail(folder != NULL, NULL);
1280
1281         return folder->klass->item_get_path(folder, item);
1282 }
1283
1284 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
1285 {
1286         if (!(dest->stype == F_OUTBOX ||
1287               dest->stype == F_QUEUE  ||
1288               dest->stype == F_DRAFT  ||
1289               dest->stype == F_TRASH)) {
1290                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
1291         } else {
1292                 flags->perm_flags = 0;
1293         }
1294         flags->tmp_flags = MSG_CACHED;
1295         if (FOLDER_TYPE(dest->folder) == F_MH) {
1296                 if (dest->stype == F_QUEUE) {
1297                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1298                 } else if (dest->stype == F_DRAFT) {
1299                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1300                 }
1301         }
1302 }
1303
1304 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1305 {
1306         MsgInfo *msginfo_a = (MsgInfo *) a;
1307         MsgInfo *msginfo_b = (MsgInfo *) b;
1308
1309         return (msginfo_a->msgnum - msginfo_b->msgnum);
1310 }
1311
1312 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1313 {
1314         guint gint_a = GPOINTER_TO_INT(a);
1315         guint gint_b = GPOINTER_TO_INT(b);
1316
1317         return (gint_a - gint_b);
1318 }
1319
1320 gint folder_item_open(FolderItem *item)
1321 {
1322         if((item->folder->klass->scan_required != NULL) && (item->folder->klass->scan_required(item->folder, item))) {
1323                 folder_item_scan_full(item, TRUE);
1324         }
1325
1326         /* Processing */
1327         if(item->prefs->processing != NULL) {
1328                 gchar *buf;
1329
1330                 buf = g_strdup_printf(_("Processing (%s)...\n"), item->path);
1331                 debug_print("%s\n", buf);
1332                 g_free(buf);
1333
1334                 folder_item_apply_processing(item);
1335
1336                 debug_print("done.\n");
1337         }
1338
1339         return 0;
1340 }
1341
1342 gint folder_item_close(FolderItem *item)
1343 {
1344         GSList *mlist, *cur;
1345         Folder *folder;
1346
1347         g_return_val_if_fail(item != NULL, -1);
1348
1349         if (item->new_msgs) {
1350                 folder_item_update_freeze();
1351                 mlist = folder_item_get_msg_list(item);
1352                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1353                         MsgInfo * msginfo;
1354
1355                         msginfo = (MsgInfo *) cur->data;
1356                         if (MSG_IS_NEW(msginfo->flags))
1357                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1358                         procmsg_msginfo_free(msginfo);
1359                 }
1360                 g_slist_free(mlist);
1361                 folder_item_update_thaw();
1362         }
1363
1364         folder_item_write_cache(item);
1365
1366         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1367
1368         item->opened = FALSE;
1369         folder = item->folder;
1370
1371         if (folder->klass->close == NULL)
1372                 return 0;
1373
1374         return folder->klass->close(folder, item);
1375 }
1376
1377 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1378 {
1379         Folder *folder;
1380         GSList *folder_list = NULL, *cache_list = NULL;
1381         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1382         GSList *exists_list = NULL, *elem;
1383         GSList *newmsg_list = NULL;
1384         guint newcnt = 0, unreadcnt = 0, totalcnt = 0, unreadmarkedcnt = 0;
1385         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1386         gboolean update_flags = 0, old_uids_valid = FALSE;
1387
1388         g_return_val_if_fail(item != NULL, -1);
1389         if (item->path == NULL) return -1;
1390
1391         folder = item->folder;
1392
1393         g_return_val_if_fail(folder != NULL, -1);
1394         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1395
1396         debug_print("Scanning folder %s for cache changes.\n", item->path);
1397
1398         /* Get list of messages for folder and cache */
1399         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1400                 debug_print("Error fetching list of message numbers\n");
1401                 return(-1);
1402         }
1403
1404         if (old_uids_valid) {
1405                 if (!item->cache)
1406                         folder_item_read_cache(item);
1407                 cache_list = msgcache_get_msg_list(item->cache);
1408         } else {
1409                 if (item->cache)
1410                         msgcache_destroy(item->cache);
1411                 item->cache = msgcache_new();
1412                 cache_list = NULL;
1413         }
1414
1415         /* Sort both lists */
1416         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1417         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1418
1419         cache_list_cur = cache_list;
1420         folder_list_cur = folder_list;
1421
1422         if (cache_list_cur != NULL) {
1423                 GSList *cache_list_last;
1424
1425                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1426                 cache_list_last = g_slist_last(cache_list);
1427                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1428         } else {
1429                 cache_cur_num = G_MAXINT;
1430                 cache_max_num = 0;
1431         }
1432
1433         if (folder_list_cur != NULL) {
1434                 GSList *folder_list_last;
1435
1436                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1437                 folder_list_last = g_slist_last(folder_list);
1438                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1439         } else {
1440                 folder_cur_num = G_MAXINT;
1441                 folder_max_num = 0;
1442         }
1443
1444         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1445                 /*
1446                  *  Message only exists in the folder
1447                  *  Remember message for fetching
1448                  */
1449                 if (folder_cur_num < cache_cur_num) {
1450                         gboolean add = FALSE;
1451
1452                         switch(FOLDER_TYPE(folder)) {
1453                                 case F_NEWS:
1454                                         if (folder_cur_num < cache_max_num)
1455                                                 break;
1456
1457                                         if (folder->account->max_articles == 0) {
1458                                                 add = TRUE;
1459                                         }
1460
1461                                         if (folder_max_num <= folder->account->max_articles) {
1462                                                 add = TRUE;
1463                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
1464                                                 add = TRUE;
1465                                         }
1466                                         break;
1467                                 default:
1468                                         add = TRUE;
1469                                         break;
1470                         }
1471
1472                         if (add) {
1473                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
1474                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
1475                         }
1476
1477                         /* Move to next folder number */
1478                         folder_list_cur = folder_list_cur->next;
1479
1480                         if (folder_list_cur != NULL)
1481                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1482                         else
1483                                 folder_cur_num = G_MAXINT;
1484
1485                         continue;
1486                 }
1487
1488                 /*
1489                  *  Message only exists in the cache
1490                  *  Remove the message from the cache
1491                  */
1492                 if (cache_cur_num < folder_cur_num) {
1493                         msgcache_remove_msg(item->cache, cache_cur_num);
1494                         debug_print("Removed message %d from cache.\n", cache_cur_num);
1495
1496                         /* Move to next cache number */
1497                         cache_list_cur = cache_list_cur->next;
1498
1499                         if (cache_list_cur != NULL)
1500                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1501                         else
1502                                 cache_cur_num = G_MAXINT;
1503
1504                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1505
1506                         continue;
1507                 }
1508
1509                 /*
1510                  *  Message number exists in folder and cache!
1511                  *  Check if the message has been modified
1512                  */
1513                 if (cache_cur_num == folder_cur_num) {
1514                         MsgInfo *msginfo;
1515
1516                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
1517                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
1518                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
1519                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
1520                                 procmsg_msginfo_free(msginfo);
1521
1522                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
1523                         } else
1524                                 exists_list = g_slist_prepend(exists_list, msginfo);
1525
1526                         /* Move to next folder and cache number */
1527                         cache_list_cur = cache_list_cur->next;
1528                         folder_list_cur = folder_list_cur->next;
1529
1530                         if (cache_list_cur != NULL)
1531                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1532                         else
1533                                 cache_cur_num = G_MAXINT;
1534
1535                         if (folder_list_cur != NULL)
1536                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1537                         else
1538                                 folder_cur_num = G_MAXINT;
1539
1540                         continue;
1541                 }
1542         }
1543
1544         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
1545                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
1546
1547         g_slist_free(cache_list);
1548         g_slist_free(folder_list);
1549
1550         if (new_list != NULL) {
1551                 if (folder->klass->get_msginfos) {
1552                         newmsg_list = folder->klass->get_msginfos(folder, item, new_list);
1553                 } else if (folder->klass->get_msginfo) {
1554                         GSList *elem;
1555
1556                         for (elem = new_list; elem != NULL; elem = g_slist_next(elem)) {
1557                                 MsgInfo *msginfo;
1558                                 guint num;
1559
1560                                 num = GPOINTER_TO_INT(elem->data);
1561                                 msginfo = folder->klass->get_msginfo(folder, item, num);
1562                                 if (msginfo != NULL) {
1563                                         newmsg_list = g_slist_prepend(newmsg_list, msginfo);
1564                                         debug_print("Added newly found message %d to cache.\n", num);
1565                                 }
1566                         }
1567                 }
1568                 g_slist_free(new_list);
1569         }
1570
1571         folder_item_update_freeze();
1572         if (newmsg_list != NULL) {
1573                 GSList *elem;
1574
1575                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
1576                         MsgInfo *msginfo = (MsgInfo *) elem->data;
1577
1578                         msgcache_add_msg(item->cache, msginfo);
1579                         if ((filtering == TRUE) &&
1580                             (item->stype == F_INBOX) &&
1581                             (item->folder->account != NULL) &&
1582                             (item->folder->account->filter_on_recv) &&
1583                             procmsg_msginfo_filter(msginfo))
1584                                 procmsg_msginfo_free(msginfo);
1585                         else
1586                                 exists_list = g_slist_prepend(exists_list, msginfo);
1587                 }
1588                 g_slist_free(newmsg_list);
1589
1590                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1591         }
1592
1593         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
1594                 MsgInfo *msginfo;
1595
1596                 msginfo = elem->data;
1597                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1598                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1599                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
1600                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1601                         procmsg_msginfo_set_flags(msginfo, MSG_IGNORE_THREAD, 0);
1602                 }
1603                 if ((item->stype == F_OUTBOX ||
1604                      item->stype == F_QUEUE  ||
1605                      item->stype == F_DRAFT  ||
1606                      item->stype == F_TRASH) &&
1607                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1608                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1609                 if (MSG_IS_NEW(msginfo->flags))
1610                         newcnt++;
1611                 if (MSG_IS_UNREAD(msginfo->flags))
1612                         unreadcnt++;
1613                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1614                         unreadmarkedcnt++;
1615                 totalcnt++;
1616
1617                 procmsg_msginfo_free(msginfo);
1618         }
1619         g_slist_free(exists_list);
1620
1621         item->new_msgs = newcnt;
1622         item->unread_msgs = unreadcnt;
1623         item->total_msgs = totalcnt;
1624         item->unreadmarked_msgs = unreadmarkedcnt;
1625
1626         update_flags |= F_ITEM_UPDATE_MSGCNT;
1627
1628         folder_item_update(item, update_flags);
1629         folder_item_update_thaw();
1630
1631         return 0;
1632 }
1633
1634 gint folder_item_scan(FolderItem *item)
1635 {
1636         return folder_item_scan_full(item, TRUE);
1637 }
1638
1639 static gboolean folder_scan_all_items_func(GNode *node, gpointer data)
1640 {
1641         FolderItem *item = node->data;
1642
1643         folder_item_scan(item);
1644
1645         return FALSE;
1646 }
1647
1648 void folder_scan_all_items(Folder * folder)
1649 {
1650         g_node_traverse(folder->node, G_PRE_ORDER,
1651                         G_TRAVERSE_ALL, -1, folder_scan_all_items_func, NULL);
1652 }
1653
1654 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
1655                                           gpointer data)
1656 {
1657         folder_item_scan(FOLDER_ITEM(key));
1658 }
1659
1660 void folder_item_scan_foreach(GHashTable *table)
1661 {
1662         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
1663 }
1664
1665 void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
1666 {
1667         gint *memusage = (gint *)data;
1668
1669         if (item->cache == NULL)
1670                 return;
1671
1672         *memusage += msgcache_get_memory_usage(item->cache);
1673 }
1674
1675 gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
1676 {
1677         FolderItem *fa = (FolderItem *)a;
1678         FolderItem *fb = (FolderItem *)b;
1679
1680         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
1681 }
1682
1683 void folder_find_expired_caches(FolderItem *item, gpointer data)
1684 {
1685         GSList **folder_item_list = (GSList **)data;
1686         gint difftime, expiretime;
1687
1688         if (item->cache == NULL)
1689                 return;
1690
1691         if (item->opened > 0)
1692                 return;
1693
1694         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
1695         expiretime = prefs_common.cache_min_keep_time * 60;
1696         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
1697         if (difftime > expiretime) {
1698                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
1699         }
1700 }
1701
1702 void folder_item_free_cache(FolderItem *item)
1703 {
1704         g_return_if_fail(item != NULL);
1705
1706         if (item->cache == NULL)
1707                 return;
1708
1709         if (item->opened > 0)
1710                 return;
1711
1712         folder_item_write_cache(item);
1713         msgcache_destroy(item->cache);
1714         item->cache = NULL;
1715 }
1716
1717 void folder_clean_cache_memory(void)
1718 {
1719         gint memusage = 0;
1720
1721         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
1722         debug_print("Total cache memory usage: %d\n", memusage);
1723
1724         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
1725                 GSList *folder_item_list = NULL, *listitem;
1726
1727                 debug_print("Trying to free cache memory\n");
1728
1729                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
1730                 listitem = folder_item_list;
1731                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
1732                         FolderItem *item = (FolderItem *)(listitem->data);
1733
1734                         debug_print("Freeing cache memory for %s\n", item->path);
1735                         memusage -= msgcache_get_memory_usage(item->cache);
1736                         folder_item_free_cache(item);
1737                         listitem = listitem->next;
1738                 }
1739                 g_slist_free(folder_item_list);
1740         }
1741 }
1742
1743 void folder_item_read_cache(FolderItem *item)
1744 {
1745         gchar *cache_file, *mark_file;
1746
1747         g_return_if_fail(item != NULL);
1748
1749         cache_file = folder_item_get_cache_file(item);
1750         mark_file = folder_item_get_mark_file(item);
1751         item->cache = msgcache_read_cache(item, cache_file);
1752         if (!item->cache) {
1753                 item->cache = msgcache_new();
1754                 folder_item_scan_full(item, TRUE);
1755         }
1756         msgcache_read_mark(item->cache, mark_file);
1757         g_free(cache_file);
1758         g_free(mark_file);
1759
1760         folder_clean_cache_memory();
1761 }
1762
1763 void folder_item_write_cache(FolderItem *item)
1764 {
1765         gchar *cache_file, *mark_file;
1766         FolderItemPrefs *prefs;
1767         gint filemode = 0;
1768         gchar *id;
1769
1770         if (!item || !item->path || !item->cache)
1771                 return;
1772
1773         id = folder_item_get_identifier(item);
1774         debug_print("Save cache for folder %s\n", id);
1775         g_free(id);
1776
1777         cache_file = folder_item_get_cache_file(item);
1778         mark_file = folder_item_get_mark_file(item);
1779         if (msgcache_write(cache_file, mark_file, item->cache) < 0) {
1780                 prefs = item->prefs;
1781                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
1782                         /* for cache file */
1783                         filemode = prefs->folder_chmod;
1784                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
1785                         if (filemode & S_IROTH) filemode |= S_IWOTH;
1786                         chmod(cache_file, filemode);
1787                 }
1788         }
1789
1790         g_free(cache_file);
1791         g_free(mark_file);
1792 }
1793
1794 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
1795 {
1796         Folder *folder;
1797         MsgInfo *msginfo;
1798
1799         g_return_val_if_fail(item != NULL, NULL);
1800
1801         folder = item->folder;
1802         if (!item->cache)
1803                 folder_item_read_cache(item);
1804
1805         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
1806                 return msginfo;
1807
1808         g_return_val_if_fail(folder->klass->get_msginfo, NULL);
1809         if ((msginfo = folder->klass->get_msginfo(folder, item, num)) != NULL) {
1810                 msgcache_add_msg(item->cache, msginfo);
1811                 return msginfo;
1812         }
1813
1814         return NULL;
1815 }
1816
1817 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
1818 {
1819         Folder *folder;
1820         MsgInfo *msginfo;
1821
1822         g_return_val_if_fail(item != NULL, NULL);
1823         g_return_val_if_fail(msgid != NULL, NULL);
1824
1825         folder = item->folder;
1826         if (!item->cache)
1827                 folder_item_read_cache(item);
1828
1829         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
1830                 return msginfo;
1831
1832         return NULL;
1833 }
1834
1835 GSList *folder_item_get_msg_list(FolderItem *item)
1836 {
1837         g_return_val_if_fail(item != NULL, NULL);
1838
1839         if (item->cache == 0)
1840                 folder_item_read_cache(item);
1841
1842         g_return_val_if_fail(item->cache != NULL, NULL);
1843
1844         return msgcache_get_msg_list(item->cache);
1845 }
1846
1847 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
1848 {
1849         Folder *folder;
1850
1851         g_return_val_if_fail(item != NULL, NULL);
1852
1853         folder = item->folder;
1854
1855         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
1856
1857         return folder->klass->fetch_msg(folder, item, num);
1858 }
1859
1860 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
1861 {
1862         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
1863                                        {NULL,           NULL, FALSE}};
1864         FILE *fp;
1865         MsgInfo *msginfo;
1866         gint msgnum = 0;
1867         gchar buf[BUFFSIZE];
1868
1869         if ((fp = fopen(file, "rb")) == NULL)
1870                 return 0;
1871
1872         if ((dest->stype == F_QUEUE) || (dest->stype == F_DRAFT))
1873                 while (fgets(buf, sizeof(buf), fp) != NULL)
1874                         if (buf[0] == '\r' || buf[0] == '\n') break;
1875
1876         procheader_get_header_fields(fp, hentry);
1877         if (hentry[0].body) {
1878                 extract_parenthesis(hentry[0].body, '<', '>');
1879                 remove_space(hentry[0].body);
1880                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
1881                         msgnum = msginfo->msgnum;
1882                         procmsg_msginfo_free(msginfo);
1883
1884                         debug_print("found message as uid %d\n", msgnum);
1885                 }
1886         }
1887
1888         g_free(hentry[0].body);
1889         hentry[0].body = NULL;
1890         fclose(fp);
1891
1892         return msgnum;
1893 }
1894
1895 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
1896 {
1897         MsgPermFlags perm_flags = 0;
1898         MsgTmpFlags tmp_flags = 0;
1899
1900         /* create new flags */
1901         if (source != NULL) {
1902                 /* copy original flags */
1903                 perm_flags = source->flags.perm_flags;
1904                 tmp_flags = source->flags.tmp_flags;
1905         } else {
1906                 perm_flags = dest->flags.perm_flags;
1907                 tmp_flags = dest->flags.tmp_flags;
1908         }
1909
1910         /* remove new, unread and deleted in special folders */
1911         if (dest->folder->stype == F_OUTBOX ||
1912             dest->folder->stype == F_QUEUE  ||
1913             dest->folder->stype == F_DRAFT  ||
1914             dest->folder->stype == F_TRASH)
1915                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
1916
1917         /* set ignore flag of ignored parent exists */
1918         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
1919                 perm_flags |= MSG_IGNORE_THREAD;
1920
1921         /* Unset tmp flags that should not be copied */
1922         tmp_flags &= ~(MSG_MOVE | MSG_COPY);
1923
1924         /* unset flags that are set but should not */
1925         procmsg_msginfo_unset_flags(dest,
1926                                     dest->flags.perm_flags & ~perm_flags,
1927                                     dest->flags.tmp_flags  & ~tmp_flags);
1928         /* set new flags */
1929         procmsg_msginfo_set_flags(dest,
1930                                   ~dest->flags.perm_flags & perm_flags,
1931                                   ~dest->flags.tmp_flags  & tmp_flags);
1932 }
1933
1934 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
1935 {
1936         /* update folder stats */
1937         if (MSG_IS_NEW(newmsginfo->flags))
1938                 item->new_msgs++;
1939         if (MSG_IS_UNREAD(newmsginfo->flags))
1940                 item->unread_msgs++;
1941         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
1942                 item->unreadmarked_msgs++;
1943         item->total_msgs++;
1944
1945         folder_item_update_freeze();
1946         msgcache_add_msg(item->cache, newmsginfo);
1947         copy_msginfo_flags(flagsource, newmsginfo);
1948         folder_item_update(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
1949         folder_item_update_thaw();
1950 }
1951
1952 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
1953 {
1954         MsgInfoUpdate msginfo_update;
1955
1956         if (!item->cache)
1957                 folder_item_read_cache(item);
1958
1959         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
1960                 msginfo->folder->new_msgs--;
1961         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
1962                 msginfo->folder->unread_msgs--;
1963         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1964                 msginfo->folder->unreadmarked_msgs--;
1965         msginfo->folder->total_msgs--;
1966
1967         msginfo_update.msginfo = msginfo;
1968         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
1969         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
1970
1971         msgcache_remove_msg(item->cache, msginfo->msgnum);
1972         folder_item_update(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
1973 }
1974
1975 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
1976                          MsgFlags *flags, gboolean remove_source)
1977 {
1978         GSList file_list;
1979         MsgFileInfo fileinfo;
1980
1981         g_return_val_if_fail(dest != NULL, -1);
1982         g_return_val_if_fail(file != NULL, -1);
1983
1984         fileinfo.msginfo = NULL;
1985         fileinfo.file = (gchar *)file;
1986         fileinfo.flags = flags;
1987         file_list.data = &fileinfo;
1988         file_list.next = NULL;
1989
1990         return folder_item_add_msgs(dest, &file_list, remove_source);
1991 }
1992
1993 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
1994                           gboolean remove_source)
1995 {
1996         Folder *folder;
1997         gint ret, num, lastnum = -1;
1998         GSList *file_cur;
1999         GRelation *relation;
2000         MsgFileInfo *fileinfo = NULL;
2001         gboolean folderscan = FALSE;
2002
2003         g_return_val_if_fail(dest != NULL, -1);
2004         g_return_val_if_fail(file_list != NULL, -1);
2005         g_return_val_if_fail(dest->folder != NULL, -1);
2006
2007         folder = dest->folder;
2008
2009         relation = g_relation_new(2);
2010         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2011
2012         if (folder->klass->add_msgs != NULL) {
2013                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2014                 if (ret < 0) {
2015                         g_relation_destroy(relation);
2016                         return ret;
2017                 }
2018         } else {
2019                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2020                         fileinfo = (MsgFileInfo *) file_cur->data;
2021
2022                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2023                         if (ret < 0) {
2024                                 g_relation_destroy(relation);
2025                                 return ret;
2026                         }
2027                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2028                 }
2029         }
2030
2031         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2032                 GTuples *tuples;
2033
2034                 fileinfo = (MsgFileInfo *) file_cur->data;
2035                 tuples = g_relation_select(relation, fileinfo, 0);
2036                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2037                 g_tuples_destroy(tuples);
2038
2039                 if (num >= 0) {
2040                         MsgInfo *newmsginfo;
2041
2042                         if (num == 0) {
2043                                 if (!folderscan) {
2044                                         folder_item_scan_full(dest, FALSE);
2045                                         folderscan = TRUE;
2046                                 }
2047                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2048                         }
2049
2050                         if (num > lastnum)
2051                                 lastnum = num;
2052
2053                         if (num >= 0 && remove_source) {
2054                                 if (unlink(fileinfo->file) < 0)
2055                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2056                         }
2057
2058                         if (num == 0)
2059                                 continue;
2060
2061                         if (!folderscan &&
2062                             ((newmsginfo = folder->klass->get_msginfo(folder, dest, num)) != NULL)) {
2063                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
2064                                 procmsg_msginfo_free(newmsginfo);
2065                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2066                                 /* TODO: set default flags */
2067                                 procmsg_msginfo_free(newmsginfo);
2068                         }
2069                 }
2070         }
2071
2072         g_relation_destroy(relation);
2073
2074         return lastnum;
2075 }
2076
2077 /*
2078 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
2079 {
2080         Folder *folder;
2081         gint num;
2082
2083         g_return_val_if_fail(dest != NULL, -1);
2084         g_return_val_if_fail(msginfo != NULL, -1);
2085
2086         folder = dest->folder;
2087         if (dest->last_num < 0) folder->scan(folder, dest);
2088
2089         num = folder->move_msg(folder, dest, msginfo);
2090         if (num > 0) dest->last_num = num;
2091
2092         return num;
2093 }
2094 */
2095
2096 FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest)
2097 {
2098         GSList *mlist;
2099         FolderItem *new_item;
2100         FolderItem *next_item;
2101         GNode *srcnode;
2102         gchar *old_id, *new_id;
2103
2104         mlist = folder_item_get_msg_list(src);
2105
2106         /* move messages */
2107         debug_print("Moving %s to %s\n", src->path, dest->path);
2108         new_item = folder_create_folder(dest, g_basename(src->path));
2109         if (new_item == NULL) {
2110                 printf("Can't create folder\n");
2111                 return NULL;
2112         }
2113
2114         if (new_item->folder == NULL)
2115                 new_item->folder = dest->folder;
2116
2117         /* move messages */
2118         log_message(_("Moving %s to %s...\n"),
2119                         src->name, new_item->path);
2120         folder_item_move_msgs(new_item, mlist);
2121
2122         /*copy prefs*/
2123         folder_item_prefs_copy_prefs(src, new_item);
2124         new_item->collapsed = src->collapsed;
2125         new_item->thread_collapsed = src->thread_collapsed;
2126         new_item->threaded  = src->threaded;
2127         new_item->ret_rcpt  = src->ret_rcpt;
2128         new_item->hide_read_msgs = src->hide_read_msgs;
2129         new_item->sort_key  = src->sort_key;
2130         new_item->sort_type = src->sort_type;
2131
2132         prefs_matcher_write_config();
2133
2134         /* recurse */
2135         srcnode = src->folder->node;
2136         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
2137         srcnode = srcnode->children;
2138         while (srcnode != NULL) {
2139                 if (srcnode && srcnode->data) {
2140                         next_item = (FolderItem*) srcnode->data;
2141                         srcnode = srcnode->next;
2142                         if (folder_item_move_recursive(next_item, new_item) == NULL)
2143                                 return NULL;
2144                 }
2145         }
2146         old_id = folder_item_get_identifier(src);
2147         new_id = folder_item_get_identifier(new_item);
2148         debug_print("updating rules : %s => %s\n", old_id, new_id);
2149
2150         src->folder->klass->remove_folder(src->folder, src);
2151         folder_write_list();
2152
2153         if (old_id != NULL && new_id != NULL)
2154                 prefs_filtering_rename_path(old_id, new_id);
2155         g_free(old_id);
2156         g_free(new_id);
2157
2158         return new_item;
2159 }
2160
2161 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item)
2162 {
2163         FolderItem *tmp = folder_item_parent(dest);
2164         gchar * src_identifier, * dst_identifier;
2165         gchar * phys_srcpath, * phys_dstpath;
2166
2167         while (tmp) {
2168                 if (tmp == src) {
2169                         return F_MOVE_FAILED_DEST_IS_CHILD;
2170                 }
2171                 tmp = folder_item_parent(tmp);;
2172         }
2173
2174         tmp = folder_item_parent(src);
2175
2176         src_identifier = folder_item_get_identifier(src);
2177         dst_identifier = folder_item_get_identifier(dest);
2178
2179         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
2180                 /* dest can be a root folder */
2181                 dst_identifier = folder_get_identifier(dest->folder);
2182         }
2183         if (src_identifier == NULL || dst_identifier == NULL) {
2184                 debug_print("Can't get identifiers\n");
2185                 return F_MOVE_FAILED;
2186         }
2187
2188         if (src->folder != dest->folder) {
2189                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
2190         }
2191
2192         phys_srcpath = folder_item_get_path(src);
2193         phys_dstpath = g_strconcat(folder_item_get_path(dest),G_DIR_SEPARATOR_S,g_basename(phys_srcpath),NULL);
2194
2195         if (folder_item_parent(src) == dest || src == dest) {
2196                 g_free(src_identifier);
2197                 g_free(dst_identifier);
2198                 g_free(phys_srcpath);
2199                 g_free(phys_dstpath);
2200                 return F_MOVE_FAILED_DEST_IS_PARENT;
2201         }
2202         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
2203         if ((tmp = folder_item_move_recursive(src, dest)) == NULL) {
2204                 return F_MOVE_FAILED;
2205         }
2206
2207         g_free(src_identifier);
2208         g_free(dst_identifier);
2209         g_free(phys_srcpath);
2210         g_free(phys_dstpath);
2211
2212         *new_item = tmp;
2213
2214         return F_MOVE_OK;
2215 }
2216
2217 /**
2218  * Copy a list of message to a new folder and remove
2219  * source messages if wanted
2220  */
2221 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
2222 {
2223         Folder *folder;
2224         GSList *l;
2225         gint num, lastnum = -1;
2226         gboolean folderscan = FALSE;
2227         GRelation *relation;
2228
2229         g_return_val_if_fail(dest != NULL, -1);
2230         g_return_val_if_fail(msglist != NULL, -1);
2231
2232         folder = dest->folder;
2233
2234         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
2235
2236         relation = g_relation_new(2);
2237         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2238         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
2239
2240         /*
2241          * Copy messages to destination folder and
2242          * store new message numbers in newmsgnums
2243          */
2244         if (folder->klass->copy_msgs != NULL) {
2245                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
2246                         g_relation_destroy(relation);
2247                         return -1;
2248                 }
2249         } else {
2250                 for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
2251                         MsgInfo * msginfo = (MsgInfo *) l->data;
2252
2253                         num = folder->klass->copy_msg(folder, dest, msginfo);
2254                         g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
2255                 }
2256         }
2257
2258         /* Read cache for dest folder */
2259         if (!dest->cache) folder_item_read_cache(dest);
2260
2261         /*
2262          * Fetch new MsgInfos for new messages in dest folder,
2263          * add them to the msgcache and update folder message counts
2264          */
2265         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
2266                 folder_item_scan_full(dest, FALSE);
2267                 folderscan = TRUE;
2268         }
2269
2270         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2271                 MsgInfo *msginfo = (MsgInfo *) l->data;
2272                 GTuples *tuples;
2273
2274                 tuples = g_relation_select(relation, msginfo, 0);
2275                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2276                 g_tuples_destroy(tuples);
2277
2278                 if (num >= 0) {
2279                         MsgInfo *newmsginfo;
2280
2281                         if (folderscan) {
2282                                 if (msginfo->msgid != NULL) {
2283                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
2284                                         if (newmsginfo != NULL) {
2285                                                 copy_msginfo_flags(msginfo, newmsginfo);
2286                                                 num = newmsginfo->msgnum;
2287                                                 procmsg_msginfo_free(newmsginfo);
2288                                         }
2289                                 }
2290                         } else {
2291                                 newmsginfo = folder->klass->get_msginfo(folder, dest, num);
2292                                 if (newmsginfo != NULL) {
2293                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
2294                                         procmsg_msginfo_free(newmsginfo);
2295                                 }
2296                         }
2297
2298                         if (num > lastnum)
2299                                 lastnum = num;
2300                 }
2301         }
2302
2303         if (remove_source) {
2304                 /*
2305                  * Remove source messages from their folders if
2306                  * copying was successfull and update folder
2307                  * message counts
2308                  */
2309                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
2310                         MsgInfo *msginfo = (MsgInfo *) l->data;
2311                         FolderItem *item = msginfo->folder;
2312                         GTuples *tuples;
2313
2314                         tuples = g_relation_select(relation, msginfo, 0);
2315                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2316                         g_tuples_destroy(tuples);
2317
2318                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
2319                                 item->folder->klass->remove_msg(item->folder,
2320                                                                 msginfo->folder,
2321                                                                 msginfo->msgnum);
2322                                 remove_msginfo_from_cache(item, msginfo);
2323                         }
2324                 }
2325         }
2326
2327         if (folder->klass->finished_copy)
2328                 folder->klass->finished_copy(folder, dest);
2329
2330         g_relation_destroy(relation);
2331         return lastnum;
2332 }
2333
2334 /**
2335  * Move a message to a new folder.
2336  *
2337  * \param dest Destination folder
2338  * \param msginfo The message
2339  */
2340 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
2341 {
2342         GSList list;
2343
2344         g_return_val_if_fail(dest != NULL, -1);
2345         g_return_val_if_fail(msginfo != NULL, -1);
2346
2347         list.data = msginfo;
2348         list.next = NULL;
2349
2350         return do_copy_msgs(dest, &list, TRUE);
2351 }
2352
2353 /**
2354  * Move a list of messages to a new folder.
2355  *
2356  * \param dest Destination folder
2357  * \param msglist List of messages
2358  */
2359 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
2360 {
2361         g_return_val_if_fail(dest != NULL, -1);
2362         g_return_val_if_fail(msglist != NULL, -1);
2363
2364         return do_copy_msgs(dest, msglist, TRUE);
2365 }
2366
2367 /**
2368  * Copy a message to a new folder.
2369  *
2370  * \param dest Destination folder
2371  * \param msginfo The message
2372  */
2373 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
2374 {
2375         GSList list;
2376
2377         g_return_val_if_fail(dest != NULL, -1);
2378         g_return_val_if_fail(msginfo != NULL, -1);
2379
2380         list.data = msginfo;
2381         list.next = NULL;
2382
2383         return do_copy_msgs(dest, &list, FALSE);
2384 }
2385
2386 /**
2387  * Copy a list of messages to a new folder.
2388  *
2389  * \param dest Destination folder
2390  * \param msglist List of messages
2391  */
2392 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
2393 {
2394         g_return_val_if_fail(dest != NULL, -1);
2395         g_return_val_if_fail(msglist != NULL, -1);
2396
2397         return do_copy_msgs(dest, msglist, FALSE);
2398 }
2399
2400 gint folder_item_remove_msg(FolderItem *item, gint num)
2401 {
2402         Folder *folder;
2403         gint ret;
2404         MsgInfo *msginfo;
2405
2406         g_return_val_if_fail(item != NULL, -1);
2407         folder = item->folder;
2408         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
2409
2410         if (!item->cache) folder_item_read_cache(item);
2411
2412         ret = folder->klass->remove_msg(folder, item, num);
2413
2414         msginfo = msgcache_get_msg(item->cache, num);
2415         if (msginfo != NULL) {
2416                 remove_msginfo_from_cache(item, msginfo);
2417                 procmsg_msginfo_free(msginfo);
2418         }
2419         folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
2420
2421         return ret;
2422 }
2423
2424 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
2425 {
2426         Folder *folder;
2427         gint ret = 0;
2428
2429         g_return_val_if_fail(item != NULL, -1);
2430         folder = item->folder;
2431         g_return_val_if_fail(folder != NULL, -1);
2432
2433         if (!item->cache) folder_item_read_cache(item);
2434
2435         while (msglist != NULL) {
2436                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
2437
2438                 ret = folder_item_remove_msg(item, msginfo->msgnum);
2439                 if (ret != 0) break;
2440                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2441                 msglist = msglist->next;
2442         }
2443
2444         return ret;
2445 }
2446
2447 gint folder_item_remove_all_msg(FolderItem *item)
2448 {
2449         Folder *folder;
2450         gint result;
2451
2452         g_return_val_if_fail(item != NULL, -1);
2453
2454         folder = item->folder;
2455
2456         g_return_val_if_fail(folder->klass->remove_all_msg != NULL, -1);
2457
2458         result = folder->klass->remove_all_msg(folder, item);
2459
2460         if (result == 0) {
2461                 if (folder->klass->finished_remove)
2462                         folder->klass->finished_remove(folder, item);
2463
2464                 folder_item_free_cache(item);
2465                 item->cache = msgcache_new();
2466
2467                 item->new_msgs = 0;
2468                 item->unread_msgs = 0;
2469                 item->unreadmarked_msgs = 0;
2470                 item->total_msgs = 0;
2471                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
2472         }
2473
2474         return result;
2475 }
2476
2477 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
2478 {
2479         g_return_if_fail(item != NULL);
2480         g_return_if_fail(msginfo != NULL);
2481
2482         if (item->folder->klass->change_flags != NULL) {
2483                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
2484         } else {
2485                 msginfo->flags.perm_flags = newflags;
2486         }
2487 }
2488
2489 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
2490 {
2491         Folder *folder;
2492
2493         g_return_val_if_fail(item != NULL, FALSE);
2494
2495         folder = item->folder;
2496
2497         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
2498
2499         return folder->klass->is_msg_changed(folder, item, msginfo);
2500 }
2501
2502 gchar *folder_item_get_cache_file(FolderItem *item)
2503 {
2504         gchar *path;
2505         gchar *file;
2506
2507         g_return_val_if_fail(item != NULL, NULL);
2508         g_return_val_if_fail(item->path != NULL, NULL);
2509
2510         path = folder_item_get_path(item);
2511         g_return_val_if_fail(path != NULL, NULL);
2512         if (!is_dir_exist(path))
2513                 make_dir_hier(path);
2514         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
2515         g_free(path);
2516
2517         return file;
2518 }
2519
2520 gchar *folder_item_get_mark_file(FolderItem *item)
2521 {
2522         gchar *path;
2523         gchar *file;
2524
2525         g_return_val_if_fail(item != NULL, NULL);
2526         g_return_val_if_fail(item->path != NULL, NULL);
2527
2528         path = folder_item_get_path(item);
2529         g_return_val_if_fail(path != NULL, NULL);
2530         if (!is_dir_exist(path))
2531                 make_dir_hier(path);
2532         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
2533         g_free(path);
2534
2535         return file;
2536 }
2537
2538 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
2539 {
2540         XMLNode *xmlnode = (XMLNode *) nodedata;
2541         Folder *folder = (Folder *) data;
2542         FolderItem *item;
2543
2544         g_return_val_if_fail(xmlnode != NULL, NULL);
2545         g_return_val_if_fail(folder != NULL, NULL);
2546
2547         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
2548                 g_warning("tag name != \"folderitem\"\n");
2549                 return NULL;
2550         }
2551
2552         item = folder_item_new(folder, "", "");
2553         if (folder->klass->item_set_xml != NULL)
2554                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
2555         else
2556                 folder_item_set_xml(folder, item, xmlnode->tag);
2557
2558         item->folder = folder;
2559
2560         switch (item->stype) {
2561         case F_INBOX:  folder->inbox  = item; break;
2562         case F_OUTBOX: folder->outbox = item; break;
2563         case F_DRAFT:  folder->draft  = item; break;
2564         case F_QUEUE:  folder->queue  = item; break;
2565         case F_TRASH:  folder->trash  = item; break;
2566         default:       break;
2567         }
2568         folder_item_prefs_read_config(item);
2569
2570         return item;
2571 }
2572
2573 static gboolean folder_item_set_node(GNode *node, gpointer data)
2574 {
2575         FolderItem *item = (FolderItem *) node->data;
2576         item->node = node;
2577
2578         return FALSE;
2579 }
2580
2581 static Folder *folder_get_from_xml(GNode *node)
2582 {
2583         Folder *folder;
2584         XMLNode *xmlnode;
2585         GList *list;
2586         FolderClass *klass = NULL;
2587         GNode *cur;
2588
2589         g_return_val_if_fail(node->data != NULL, NULL);
2590
2591         xmlnode = node->data;
2592         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
2593                 g_warning("tag name != \"folder\"\n");
2594                 return NULL;
2595         }
2596         list = xmlnode->tag->attr;
2597         for (; list != NULL; list = list->next) {
2598                 XMLAttr *attr = list->data;
2599
2600                 if (!attr || !attr->name || !attr->value) continue;
2601                 if (!strcmp(attr->name, "type"))
2602                         klass = folder_get_class_from_string(attr->value);
2603         }
2604         if (klass == NULL)
2605                 return NULL;
2606
2607         folder = folder_new(klass, "", "");
2608         g_return_val_if_fail(folder != NULL, NULL);
2609
2610         if (klass->set_xml)
2611                 klass->set_xml(folder, xmlnode->tag);
2612         else
2613                 folder_set_xml(folder, xmlnode->tag);
2614
2615         cur = node->children;
2616         while (cur != NULL) {
2617                 GNode *itemnode;
2618
2619                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
2620                 g_node_append(folder->node, itemnode);
2621                 cur = cur->next;
2622         }
2623         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
2624
2625         return folder;
2626 }
2627
2628 static gchar *folder_get_list_path(void)
2629 {
2630         static gchar *filename = NULL;
2631
2632         if (!filename)
2633                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2634                                         FOLDER_LIST, NULL);
2635
2636         return filename;
2637 }
2638
2639 #define PUT_ESCAPE_STR(fp, attr, str)                   \
2640 {                                                       \
2641         fputs(" " attr "=\"", fp);                      \
2642         xml_file_put_escape_str(fp, str);               \
2643         fputs("\"", fp);                                \
2644 }
2645
2646 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
2647 {
2648         FolderItem *item = (FolderItem *) nodedata;
2649         XMLNode *xmlnode;
2650         XMLTag *tag;
2651
2652         g_return_val_if_fail(item != NULL, NULL);
2653
2654         if (item->folder->klass->item_get_xml != NULL)
2655                 tag = item->folder->klass->item_get_xml(item->folder, item);
2656         else
2657                 tag = folder_item_get_xml(item->folder, item);
2658
2659         xmlnode = g_new0(XMLNode, 1);
2660         xmlnode->tag = tag;
2661         xmlnode->element = NULL;
2662
2663         return xmlnode;
2664 }
2665
2666 static GNode *folder_get_xml_node(Folder *folder)
2667 {
2668         GNode *node;
2669         XMLNode *xmlnode;
2670         XMLTag *tag;
2671
2672         g_return_val_if_fail(folder != NULL, NULL);
2673
2674         if (folder->klass->get_xml != NULL)
2675                 tag = folder->klass->get_xml(folder);
2676         else
2677                 tag = folder_get_xml(folder);
2678
2679         xml_tag_add_attr(tag, "type", g_strdup(folder->klass->idstr));
2680
2681         xmlnode = g_new0(XMLNode, 1);
2682         xmlnode->tag = tag;
2683         xmlnode->element = NULL;
2684
2685         node = g_node_new(xmlnode);
2686         if (folder->node->children) {
2687                 GNode *cur;
2688
2689                 cur = folder->node->children;
2690                 while (cur) {
2691                         GNode *xmlnode;
2692
2693                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
2694                         g_node_append(node, xmlnode);
2695                         cur = cur->next;
2696                 }
2697         }
2698
2699         return node;
2700 }
2701
2702 static void folder_update_op_count_rec(GNode *node)
2703 {
2704         FolderItem *fitem = FOLDER_ITEM(node->data);
2705
2706         if (g_node_depth(node) > 0) {
2707                 if (fitem->op_count > 0) {
2708                         fitem->op_count = 0;
2709                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
2710                 }
2711                 if (node->children) {
2712                         GNode *child;
2713
2714                         child = node->children;
2715                         while (child) {
2716                                 GNode *cur;
2717
2718                                 cur = child;
2719                                 child = cur->next;
2720                                 folder_update_op_count_rec(cur);
2721                         }
2722                 }
2723         }
2724 }
2725
2726 void folder_update_op_count(void)
2727 {
2728         GList *cur;
2729         Folder *folder;
2730
2731         for (cur = folder_list; cur != NULL; cur = cur->next) {
2732                 folder = cur->data;
2733                 folder_update_op_count_rec(folder->node);
2734         }
2735 }
2736
2737 typedef struct _type_str {
2738         gchar * str;
2739         gint type;
2740 } type_str;
2741
2742
2743 /*
2744 static gchar * folder_item_get_tree_identifier(FolderItem * item)
2745 {
2746         if (item->parent != NULL) {
2747                 gchar * path;
2748                 gchar * id;
2749
2750                 path = folder_item_get_tree_identifier(item->parent);
2751                 if (path == NULL)
2752                         return NULL;
2753
2754                 id = g_strconcat(path, "/", item->name, NULL);
2755                 g_free(path);
2756
2757                 return id;
2758         }
2759         else {
2760                 return g_strconcat("/", item->name, NULL);
2761         }
2762 }
2763 */
2764
2765 /* CLAWS: temporary local folder for filtering */
2766 #define TEMP_FOLDER "TEMP_FOLDER"
2767 #define PROCESSING_FOLDER_ITEM "processing"
2768
2769 static FolderItem *processing_folder_item;
2770
2771 static void folder_create_processing_folder(void)
2772 {
2773         Folder *processing_folder;
2774         gchar      *tmpname;
2775
2776         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
2777                 gchar *tmppath;
2778
2779                 tmppath =
2780                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2781                                 "tempfolder", NULL);
2782                 processing_folder =
2783                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
2784                 g_free(tmppath);
2785         }
2786         g_assert(processing_folder != NULL);
2787
2788         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
2789         if (LOCAL_FOLDER(processing_folder)->rootpath[0] == '/')
2790                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
2791                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
2792                                       NULL);
2793         else
2794                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
2795                                       LOCAL_FOLDER(processing_folder)->rootpath,
2796                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
2797                                       NULL);
2798
2799         if (!is_dir_exist(tmpname)) {
2800                 debug_print("*TMP* creating %s\n", tmpname);
2801                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
2802                                                                                  processing_folder->node->data,
2803                                                                                  PROCESSING_FOLDER_ITEM);
2804         } else {
2805                 debug_print("*TMP* already created\n");
2806                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
2807                 g_assert(processing_folder_item);
2808                 folder_item_append(processing_folder->node->data, processing_folder_item);
2809         }
2810         g_assert(processing_folder_item != NULL);
2811         g_free(tmpname);
2812 }
2813
2814 FolderItem *folder_get_default_processing(void)
2815 {
2816         if (!processing_folder_item) {
2817                 folder_create_processing_folder();
2818         }
2819         return processing_folder_item;
2820 }
2821
2822 /* folder_persist_prefs_new() - return hash table with persistent
2823  * settings (and folder name as key).
2824  * (note that in claws other options are in the folder_item_prefs_RC
2825  * file, so those don't need to be included in PersistPref yet)
2826  */
2827 GHashTable *folder_persist_prefs_new(Folder *folder)
2828 {
2829         GHashTable *pptable;
2830
2831         g_return_val_if_fail(folder, NULL);
2832         pptable = g_hash_table_new(g_str_hash, g_str_equal);
2833         folder_get_persist_prefs_recursive(folder->node, pptable);
2834         return pptable;
2835 }
2836
2837 void folder_persist_prefs_free(GHashTable *pptable)
2838 {
2839         g_return_if_fail(pptable);
2840         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
2841         g_hash_table_destroy(pptable);
2842 }
2843
2844 const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
2845 {
2846         if (pptable == NULL || name == NULL) return NULL;
2847         return g_hash_table_lookup(pptable, name);
2848 }
2849
2850 void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
2851 {
2852         const PersistPrefs *pp;
2853         gchar *id = folder_item_get_identifier(item);
2854
2855         pp = folder_get_persist_prefs(pptable, id);
2856         g_free(id);
2857
2858         if (!pp) return;
2859
2860         /* CLAWS: since not all folder properties have been migrated to
2861          * folderlist.xml, we need to call the old stuff first before
2862          * setting things that apply both to Main and Claws. */
2863         folder_item_prefs_read_config(item);
2864
2865         item->collapsed = pp->collapsed;
2866         item->thread_collapsed = pp->thread_collapsed;
2867         item->threaded  = pp->threaded;
2868         item->ret_rcpt  = pp->ret_rcpt;
2869         item->hide_read_msgs = pp->hide_read_msgs;
2870         item->sort_key  = pp->sort_key;
2871         item->sort_type = pp->sort_type;
2872 }
2873
2874 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
2875 {
2876         FolderItem *item = FOLDER_ITEM(node->data);
2877         PersistPrefs *pp;
2878         GNode *child, *cur;
2879         gchar *id;
2880
2881         g_return_if_fail(node != NULL);
2882         g_return_if_fail(item != NULL);
2883
2884         /* NOTE: item->path == NULL means top level folder; not interesting
2885          * to store preferences of that one.  */
2886         if (item->path) {
2887                 id = folder_item_get_identifier(item);
2888                 pp = g_new0(PersistPrefs, 1);
2889                 g_return_if_fail(pp != NULL);
2890                 pp->collapsed = item->collapsed;
2891                 pp->thread_collapsed = item->thread_collapsed;
2892                 pp->threaded  = item->threaded;
2893                 pp->ret_rcpt  = item->ret_rcpt;
2894                 pp->hide_read_msgs = item->hide_read_msgs;
2895                 pp->sort_key  = item->sort_key;
2896                 pp->sort_type = item->sort_type;
2897                 g_hash_table_insert(pptable, id, pp);
2898         }
2899
2900         if (node->children) {
2901                 child = node->children;
2902                 while (child) {
2903                         cur = child;
2904                         child = cur->next;
2905                         folder_get_persist_prefs_recursive(cur, pptable);
2906                 }
2907         }
2908 }
2909
2910 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
2911 {
2912         if (key)
2913                 g_free(key);
2914         if (val)
2915                 g_free(val);
2916         return TRUE;
2917 }
2918
2919 void folder_item_apply_processing(FolderItem *item)
2920 {
2921         GSList *processing_list;
2922         GSList *mlist, *cur;
2923
2924         g_return_if_fail(item != NULL);
2925
2926         processing_list = item->prefs->processing;
2927
2928         folder_item_update_freeze();
2929
2930         mlist = folder_item_get_msg_list(item);
2931         for (cur = mlist ; cur != NULL ; cur = cur->next) {
2932                 MsgInfo * msginfo;
2933
2934                 msginfo = (MsgInfo *) cur->data;
2935
2936                 /* reset parameters that can be modified by processing */
2937                 msginfo->hidden = 0;
2938                 msginfo->score = 0;
2939
2940                 /* apply pre global rules */
2941                 filter_message_by_msginfo(pre_global_processing, msginfo);
2942
2943                 /* apply rules of the folder */
2944                 filter_message_by_msginfo(processing_list, msginfo);
2945
2946                 /* apply post global rules */
2947                 filter_message_by_msginfo(post_global_processing, msginfo);
2948
2949                 procmsg_msginfo_free(msginfo);
2950         }
2951         g_slist_free(mlist);
2952
2953         folder_item_update_thaw();
2954 }
2955
2956 /*
2957  *  functions for handling FolderItem content changes
2958  */
2959 static gint folder_item_update_freeze_cnt = 0;
2960
2961 /**
2962  * Notify the folder system about changes to a folder. If the
2963  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
2964  * be invoked, otherwise the changes will be remebered until
2965  * the folder system is thawed.
2966  *
2967  * \param item The FolderItem that was changed
2968  * \param update_flags Type of changed that was made
2969  */
2970 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
2971 {
2972         if (folder_item_update_freeze_cnt == 0) {
2973                 FolderItemUpdateData source;
2974
2975                 source.item = item;
2976                 source.update_flags = update_flags;
2977                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
2978         } else {
2979                 item->update_flags |= update_flags;
2980         }
2981 }
2982
2983 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
2984 {
2985         GNode *node = item->folder->node;
2986
2987         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
2988         node = node->children;
2989
2990         folder_item_update(item, update_flags);
2991         while (node != NULL) {
2992                 if (node && node->data) {
2993                         FolderItem *next_item = (FolderItem*) node->data;
2994
2995                         folder_item_update(next_item, update_flags);
2996                 }
2997                 node = node->next;
2998         }
2999 }
3000
3001 void folder_item_update_freeze(void)
3002 {
3003         folder_item_update_freeze_cnt++;
3004 }
3005
3006 static void folder_item_update_func(FolderItem *item, gpointer data)
3007 {
3008         FolderItemUpdateData source;
3009
3010         if (item->update_flags) {
3011                 source.item = item;
3012                 source.update_flags = item->update_flags;
3013                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3014                 item->update_flags = 0;
3015         }
3016 }
3017
3018 void folder_item_update_thaw(void)
3019 {
3020         if (folder_item_update_freeze_cnt > 0)
3021                 folder_item_update_freeze_cnt--;
3022         if (folder_item_update_freeze_cnt == 0) {
3023                 /* Update all folders */
3024                 folder_func_to_all_folders(folder_item_update_func, NULL);
3025         }
3026 }
3027
3028 #undef PUT_ESCAPE_STR