src/matcher.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2002-2012 by the Claws Mail Team and 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 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27 #include <ctype.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <errno.h>
  31
  32 #ifdef USE_PTHREAD
  33 #include <pthread.h>
  34 #endif
  35
  36 #include "defs.h"
  37 #include "utils.h"
  38 #include "procheader.h"
  39 #include "matcher.h"
  40 #include "matcher_parser.h"
  41 #include "prefs_gtk.h"
  42 #include "addr_compl.h"
  43 #include "codeconv.h"
  44 #include "quoted-printable.h"
  45 #include "claws.h"
  46 #include <ctype.h>
  47 #include "prefs_common.h"
  48 #include "log.h"
  49 #include "tags.h"
  50
  51 /*!
  52  *\brief        Keyword lookup element
  53  */
  54 struct _MatchParser {
  55         gint id;                /*!< keyword id */
  56         gchar *str;             /*!< keyword */
  57 };
  58 typedef struct _MatchParser MatchParser;
  59
  60 /*!
  61  *\brief        Table with strings and ids used by the lexer and
  62  *              the parser. New keywords can be added here.
  63  */
  64 static const MatchParser matchparser_tab[] = {
  65         /* msginfo flags */
  66         {MATCHCRITERIA_ALL, "all"},
  67         {MATCHCRITERIA_UNREAD, "unread"},
  68         {MATCHCRITERIA_NOT_UNREAD, "~unread"},
  69         {MATCHCRITERIA_NEW, "new"},
  70         {MATCHCRITERIA_NOT_NEW, "~new"},
  71         {MATCHCRITERIA_MARKED, "marked"},
  72         {MATCHCRITERIA_NOT_MARKED, "~marked"},
  73         {MATCHCRITERIA_DELETED, "deleted"},
  74         {MATCHCRITERIA_NOT_DELETED, "~deleted"},
  75         {MATCHCRITERIA_REPLIED, "replied"},
  76         {MATCHCRITERIA_NOT_REPLIED, "~replied"},
  77         {MATCHCRITERIA_FORWARDED, "forwarded"},
  78         {MATCHCRITERIA_NOT_FORWARDED, "~forwarded"},
  79         {MATCHCRITERIA_LOCKED, "locked"},
  80         {MATCHCRITERIA_NOT_LOCKED, "~locked"},
  81         {MATCHCRITERIA_COLORLABEL, "colorlabel"},
  82         {MATCHCRITERIA_NOT_COLORLABEL, "~colorlabel"},
  83         {MATCHCRITERIA_IGNORE_THREAD, "ignore_thread"},
  84         {MATCHCRITERIA_NOT_IGNORE_THREAD, "~ignore_thread"},
  85         {MATCHCRITERIA_WATCH_THREAD, "watch_thread"},
  86         {MATCHCRITERIA_NOT_WATCH_THREAD, "~watch_thread"},
  87         {MATCHCRITERIA_SPAM, "spam"},
  88         {MATCHCRITERIA_NOT_SPAM, "~spam"},
  89         {MATCHCRITERIA_HAS_ATTACHMENT, "has_attachment"},
  90         {MATCHCRITERIA_HAS_NO_ATTACHMENT, "~has_attachment"},
  91         {MATCHCRITERIA_SIGNED, "signed"},
  92         {MATCHCRITERIA_NOT_SIGNED, "~signed"},
  93
  94         /* msginfo headers */
  95         {MATCHCRITERIA_SUBJECT, "subject"},
  96         {MATCHCRITERIA_NOT_SUBJECT, "~subject"},
  97         {MATCHCRITERIA_FROM, "from"},
  98         {MATCHCRITERIA_NOT_FROM, "~from"},
  99         {MATCHCRITERIA_TO, "to"},
 100         {MATCHCRITERIA_NOT_TO, "~to"},
 101         {MATCHCRITERIA_CC, "cc"},
 102         {MATCHCRITERIA_NOT_CC, "~cc"},
 103         {MATCHCRITERIA_TO_OR_CC, "to_or_cc"},
 104         {MATCHCRITERIA_NOT_TO_AND_NOT_CC, "~to_or_cc"},
 105         {MATCHCRITERIA_TAG, "tag"},
 106         {MATCHCRITERIA_NOT_TAG, "~tag"},
 107         {MATCHCRITERIA_TAGGED, "tagged"},
 108         {MATCHCRITERIA_NOT_TAGGED, "~tagged"},
 109         {MATCHCRITERIA_AGE_GREATER, "age_greater"},
 110         {MATCHCRITERIA_AGE_LOWER, "age_lower"},
 111         {MATCHCRITERIA_NEWSGROUPS, "newsgroups"},
 112         {MATCHCRITERIA_NOT_NEWSGROUPS, "~newsgroups"},
 113         {MATCHCRITERIA_INREPLYTO, "inreplyto"},
 114         {MATCHCRITERIA_NOT_INREPLYTO, "~inreplyto"},
 115         {MATCHCRITERIA_REFERENCES, "references"},
 116         {MATCHCRITERIA_NOT_REFERENCES, "~references"},
 117         {MATCHCRITERIA_SCORE_GREATER, "score_greater"},
 118         {MATCHCRITERIA_SCORE_LOWER, "score_lower"},
 119         {MATCHCRITERIA_SCORE_EQUAL, "score_equal"},
 120         {MATCHCRITERIA_PARTIAL, "partial"},
 121         {MATCHCRITERIA_NOT_PARTIAL, "~partial"},
 122         {MATCHCRITERIA_FOUND_IN_ADDRESSBOOK, "found_in_addressbook"},
 123         {MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK, "~found_in_addressbook"},
 124
 125         {MATCHCRITERIA_SIZE_GREATER, "size_greater"},
 126         {MATCHCRITERIA_SIZE_SMALLER, "size_smaller"},
 127         {MATCHCRITERIA_SIZE_EQUAL,   "size_equal"},
 128
 129         /* content have to be read */
 130         {MATCHCRITERIA_HEADER, "header"},
 131         {MATCHCRITERIA_NOT_HEADER, "~header"},
 132         {MATCHCRITERIA_HEADERS_PART, "headers_part"},
 133         {MATCHCRITERIA_NOT_HEADERS_PART, "~headers_part"},
 134         {MATCHCRITERIA_MESSAGE, "message"},
 135         {MATCHCRITERIA_NOT_MESSAGE, "~message"},
 136         {MATCHCRITERIA_BODY_PART, "body_part"},
 137         {MATCHCRITERIA_NOT_BODY_PART, "~body_part"},
 138         {MATCHCRITERIA_TEST, "test"},
 139         {MATCHCRITERIA_NOT_TEST, "~test"},
 140
 141         /* match type */
 142         {MATCHTYPE_MATCHCASE, "matchcase"},
 143         {MATCHTYPE_MATCH, "match"},
 144         {MATCHTYPE_REGEXPCASE, "regexpcase"},
 145         {MATCHTYPE_REGEXP, "regexp"},
 146
 147         /* actions */
 148         {MATCHACTION_SCORE, "score"},    /* for backward compatibility */
 149         {MATCHACTION_MOVE, "move"},
 150         {MATCHACTION_COPY, "copy"},
 151         {MATCHACTION_DELETE, "delete"},
 152         {MATCHACTION_MARK, "mark"},
 153         {MATCHACTION_UNMARK, "unmark"},
 154         {MATCHACTION_LOCK, "lock"},
 155         {MATCHACTION_UNLOCK, "unlock"},
 156         {MATCHACTION_MARK_AS_READ, "mark_as_read"},
 157         {MATCHACTION_MARK_AS_UNREAD, "mark_as_unread"},
 158         {MATCHACTION_MARK_AS_SPAM, "mark_as_spam"},
 159         {MATCHACTION_MARK_AS_HAM, "mark_as_ham"},
 160         {MATCHACTION_FORWARD, "forward"},
 161         {MATCHACTION_FORWARD_AS_ATTACHMENT, "forward_as_attachment"},
 162         {MATCHACTION_EXECUTE, "execute"},
 163         {MATCHACTION_COLOR, "color"},
 164         {MATCHACTION_REDIRECT, "redirect"},
 165         {MATCHACTION_CHANGE_SCORE, "change_score"},
 166         {MATCHACTION_SET_SCORE, "set_score"},
 167         {MATCHACTION_STOP, "stop"},
 168         {MATCHACTION_HIDE, "hide"},
 169         {MATCHACTION_IGNORE, "ignore"},
 170         {MATCHACTION_WATCH, "watch"},
 171         {MATCHACTION_ADD_TO_ADDRESSBOOK, "add_to_addressbook"},
 172         {MATCHACTION_SET_TAG, "set_tag"},
 173         {MATCHACTION_UNSET_TAG, "unset_tag"},
 174         {MATCHACTION_CLEAR_TAGS, "clear_tags"},
 175 };
 176
 177 enum {
 178         MATCH_ANY = 0,
 179         MATCH_ALL = 1,
 180         MATCH_ONE = 2
 181 };
 182
 183 extern gboolean debug_filtering_session;
 184
 185 /*!
 186  *\brief        Look up table with keywords defined in \sa matchparser_tab
 187  */
 188 static GHashTable *matchparser_hashtab;
 189
 190 /*!
 191  *\brief        Translate keyword id to keyword string
 192  *
 193  *\param        id Id of keyword
 194  *
 195  *\return       const gchar * Keyword
 196  */
 197 const gchar *get_matchparser_tab_str(gint id)
 198 {
 199         gint i;
 200
 201         for (i = 0; i < sizeof matchparser_tab / sizeof matchparser_tab[0]; i++) {
 202                 if (matchparser_tab[i].id == id)
 203                         return matchparser_tab[i].str;
 204         }
 205         return NULL;
 206 }
 207
 208 /*!
 209  *\brief        Create keyword lookup table
 210  */
 211 static void create_matchparser_hashtab(void)
 212 {
 213         int i;
 214
 215         if (matchparser_hashtab) return;
 216         matchparser_hashtab = g_hash_table_new(g_str_hash, g_str_equal);
 217         for (i = 0; i < sizeof matchparser_tab / sizeof matchparser_tab[0]; i++)
 218                 g_hash_table_insert(matchparser_hashtab,
 219                                     matchparser_tab[i].str,
 220                                     (gpointer) &matchparser_tab[i]);
 221 }
 222
 223 /*!
 224  *\brief        Return a keyword id from a keyword string
 225  *
 226  *\param        str Keyword string
 227  *
 228  *\return       gint Keyword id
 229  */
 230 gint get_matchparser_tab_id(const gchar *str)
 231 {
 232         MatchParser *res;
 233
 234         if (NULL != (res = g_hash_table_lookup(matchparser_hashtab, str))) {
 235                 return res->id;
 236         } else
 237                 return -1;
 238 }
 239
 240 /* **************** data structure allocation **************** */
 241
 242 /*!
 243  *\brief        Allocate a structure for a filtering / scoring
 244  *              "condition" (a matcher structure)
 245  *
 246  *\param        criteria Criteria ID (MATCHCRITERIA_XXXX)
 247  *\param        header Header string (if criteria is MATCHCRITERIA_HEADER
 248                         or MATCHCRITERIA_FOUND_IN_ADDRESSBOOK)
 249  *\param        matchtype Type of action (MATCHTYPE_XXX)
 250  *\param        expr String value or expression to check
 251  *\param        value Integer value to check
 252  *
 253  *\return       MatcherProp * Pointer to newly allocated structure
 254  */
 255 MatcherProp *matcherprop_new(gint criteria, const gchar *header,
 256                               gint matchtype, const gchar *expr,
 257                               int value)
 258 {
 259         MatcherProp *prop;
 260
 261         prop = g_new0(MatcherProp, 1);
 262         prop->criteria = criteria;
 263         prop->header = header != NULL ? g_strdup(header) : NULL;
 264
 265         prop->expr = expr != NULL ? g_strdup(expr) : NULL;
 266
 267         prop->matchtype = matchtype;
 268         prop->preg = NULL;
 269         prop->value = value;
 270         prop->error = 0;
 271
 272         return prop;
 273 }
 274
 275 /*!
 276  *\brief        Allocate a structure for a filtering / scoring
 277  *              "condition" (a matcher structure)
 278  *              Same as matcherprop_new, except it doesn't change the expr's
 279  *              case.
 280  *
 281  *\param        criteria Criteria ID (MATCHCRITERIA_XXXX)
 282  *\param        header Header string (if criteria is MATCHCRITERIA_HEADER
 283                         or MATCHCRITERIA_FOUND_IN_ADDRESSBOOK)
 284  *\param        matchtype Type of action (MATCHTYPE_XXX)
 285  *\param        expr String value or expression to check
 286  *\param        value Integer value to check
 287  *
 288  *\return       MatcherProp * Pointer to newly allocated structure
 289  */
 290 MatcherProp *matcherprop_new_create(gint criteria, const gchar *header,
 291                               gint matchtype, const gchar *expr,
 292                               int value)
 293 {
 294         MatcherProp *prop;
 295
 296         prop = g_new0(MatcherProp, 1);
 297         prop->criteria = criteria;
 298         prop->header = header != NULL ? g_strdup(header) : NULL;
 299
 300         prop->expr = expr != NULL ? g_strdup(expr) : NULL;
 301
 302         prop->matchtype = matchtype;
 303         prop->preg = NULL;
 304         prop->value = value;
 305         prop->error = 0;
 306
 307         return prop;
 308 }
 309
 310 /*!
 311  *\brief        Free a matcher structure
 312  *
 313  *\param        prop Pointer to matcher structure allocated with
 314  *              #matcherprop_new
 315  */
 316 void matcherprop_free(MatcherProp *prop)
 317 {
 318         g_free(prop->expr);
 319         g_free(prop->header);
 320         if (prop->preg != NULL) {
 321                 regfree(prop->preg);
 322                 g_free(prop->preg);
 323         }
 324         g_free(prop);
 325 }
 326
 327 /*!
 328  *\brief        Copy a matcher structure
 329  *
 330  *\param        src Matcher structure to copy
 331  *
 332  *\return       MatcherProp * Pointer to newly allocated matcher structure
 333  */
 334 MatcherProp *matcherprop_copy(const MatcherProp *src)
 335 {
 336         MatcherProp *prop = g_new0(MatcherProp, 1);
 337
 338         prop->criteria = src->criteria;
 339         prop->header = src->header ? g_strdup(src->header) : NULL;
 340         prop->expr = src->expr ? g_strdup(src->expr) : NULL;
 341         prop->matchtype = src->matchtype;
 342
 343         prop->preg = NULL; /* will be re-evaluated */
 344         prop->value = src->value;
 345         prop->error = src->error;
 346         return prop;
 347 }
 348
 349 /* ************** match ******************************/
 350
 351 static gboolean match_with_addresses_in_addressbook
 352         (MatcherProp *prop, GSList *address_list, gint type,
 353          gchar* folderpath, gint match)
 354 {
 355         GSList *walk = NULL;
 356         gboolean found = FALSE;
 357         gchar *path = NULL;
 358
 359         cm_return_val_if_fail(address_list != NULL, FALSE);
 360
 361         debug_print("match_with_addresses_in_addressbook(%d, %s)\n",
 362                                 g_slist_length(address_list), folderpath?folderpath:"(null)");
 363
 364         if (folderpath == NULL ||
 365                 strcasecmp(folderpath, "Any") == 0 ||
 366                 *folderpath == '\0')
 367                 path = NULL;
 368         else
 369                 path = folderpath;
 370
 371         start_address_completion(path);
 372
 373         for (walk = address_list; walk != NULL; walk = walk->next) {
 374                 /* exact matching of email address */
 375                 guint num_addr = complete_address(walk->data);
 376                 found = FALSE;
 377                 if (num_addr > 1) {
 378                         /* skip first item (this is the search string itself) */
 379                         int i = 1;
 380                         for (; i < num_addr && !found; i++) {
 381                                 gchar *addr = get_complete_address(i);
 382                                 extract_address(addr);
 383                                 if (strcasecmp(addr, walk->data) == 0) {
 384                                         found = TRUE;
 385
 386                                         /* debug output */
 387                                         if (debug_filtering_session
 388                                                         && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 389                                                 log_print(LOG_DEBUG_FILTERING,
 390                                                                 "address [ %s ] matches\n",
 391                                                                 (gchar *)walk->data);
 392                                         }
 393                                 }
 394                                 g_free(addr);
 395                         }
 396                 }
 397                 /* debug output */
 398                 if (debug_filtering_session
 399                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH
 400                                 && !found) {
 401                         log_print(LOG_DEBUG_FILTERING,
 402                                         "address [ %s ] does NOT match\n",
 403                                         (gchar *)walk->data);
 404                 }
 405                 g_free(walk->data);
 406
 407                 if (match == MATCH_ALL) {
 408                         /* if matching all addresses, stop if one doesn't match */
 409                         if (!found) {
 410                                 /* debug output */
 411                                 if (debug_filtering_session
 412                                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 413                                         log_print(LOG_DEBUG_FILTERING,
 414                                                         "not all address match (matching all)\n");
 415                                 }
 416                                 break;
 417                         }
 418                 } else if (match == MATCH_ANY) {
 419                         /* if matching any address, stop if one does match */
 420                         if (found) {
 421                                 /* debug output */
 422                                 if (debug_filtering_session
 423                                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 424                                         log_print(LOG_DEBUG_FILTERING,
 425                                                         "at least one address matches (matching any)\n");
 426                                 }
 427                                 break;
 428                         }
 429                 }
 430                 /* MATCH_ONE: there should be only one loop iteration */
 431         }
 432
 433         end_address_completion();
 434
 435         return found;
 436 }
 437
 438 /*!
 439  *\brief        Find out if a string matches a condition
 440  *
 441  *\param        prop Matcher structure
 442  *\param        str String to check
 443  *
 444  *\return       gboolean TRUE if str matches the condition in the
 445  *              matcher structure
 446  */
 447 static gboolean matcherprop_string_match(MatcherProp *prop, const gchar *str,
 448                                          const gchar *debug_context)
 449 {
 450         gchar *str1;
 451         gchar *down_expr;
 452         gboolean ret = FALSE;
 453         gboolean should_free = FALSE;
 454         if (str == NULL)
 455                 return FALSE;
 456
 457         if (prop->matchtype == MATCHTYPE_REGEXPCASE ||
 458             prop->matchtype == MATCHTYPE_MATCHCASE) {
 459                 str1 = g_utf8_casefold(str, -1);
 460                 down_expr = g_utf8_casefold(prop->expr, -1);
 461                 should_free = TRUE;
 462         } else {
 463                 str1 = (gchar *)str;
 464                 down_expr = (gchar *)prop->expr;
 465                 should_free = FALSE;
 466         }
 467
 468         switch (prop->matchtype) {
 469         case MATCHTYPE_REGEXPCASE:
 470         case MATCHTYPE_REGEXP:
 471 #ifndef G_OS_WIN32
 472                 if (!prop->preg && (prop->error == 0)) {
 473                         prop->preg = g_new0(regex_t, 1);
 474                         /* if regexp then don't use the escaped string */
 475                         if (regcomp(prop->preg, down_expr,
 476                                     REG_NOSUB | REG_EXTENDED
 477                                     | ((prop->matchtype == MATCHTYPE_REGEXPCASE)
 478                                     ? REG_ICASE : 0)) != 0) {
 479                                 prop->error = 1;
 480                                 g_free(prop->preg);
 481                                 prop->preg = NULL;
 482                         }
 483                 }
 484                 if (prop->preg == NULL) {
 485                         ret = FALSE;
 486                         goto free_strs;
 487                 }
 488
 489                 if (regexec(prop->preg, str1, 0, NULL, 0) == 0)
 490                         ret = TRUE;
 491                 else
 492                         ret = FALSE;
 493
 494                 /* debug output */
 495                 if (debug_filtering_session
 496                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 497                         gchar *stripped = g_strdup(str);
 498
 499                         strretchomp(stripped);
 500                         if (ret) {
 501                                 log_print(LOG_DEBUG_FILTERING,
 502                                                 "%s value [ %s ] matches regular expression [ %s ] (%s)\n",
 503                                                 debug_context, stripped, prop->expr,
 504                                                 prop->matchtype == MATCHTYPE_REGEXP ? _("Case sensitive"):_("Case insensitive"));
 505                         } else {
 506                                 log_print(LOG_DEBUG_FILTERING,
 507                                                 "%s value [ %s ] does NOT match regular expression [ %s ] (%s)\n",
 508                                                 debug_context, stripped, prop->expr,
 509                                                 prop->matchtype == MATCHTYPE_REGEXP ? _("Case sensitive"):_("Case insensitive"));
 510                         }
 511                         g_free(stripped);
 512                 }
 513                 break;
 514 #endif
 515         case MATCHTYPE_MATCHCASE:
 516         case MATCHTYPE_MATCH:
 517                 ret = (strstr(str1, down_expr) != NULL);
 518
 519                 /* debug output */
 520                 if (debug_filtering_session
 521                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 522                         gchar *stripped = g_strdup(str);
 523
 524                         strretchomp(stripped);
 525                         if (ret) {
 526                                 log_print(LOG_DEBUG_FILTERING,
 527                                                 "%s value [ %s ] contains [ %s ] (%s)\n",
 528                                                 debug_context, stripped, prop->expr,
 529                                                 prop->matchtype == MATCHTYPE_MATCH ? _("Case sensitive"):_("Case insensitive"));
 530                         } else {
 531                                 log_print(LOG_DEBUG_FILTERING,
 532                                                 "%s value [ %s ] does NOT contain [ %s ] (%s)\n",
 533                                                 debug_context, stripped, prop->expr,
 534                                                 prop->matchtype == MATCHTYPE_MATCH ? _("Case sensitive"):_("Case insensitive"));
 535                         }
 536                         g_free(stripped);
 537                 }
 538                 break;
 539
 540         default:
 541                 break;
 542         }
 543
 544 free_strs:
 545         if (should_free) {
 546                 g_free(str1);
 547                 g_free(down_expr);
 548         }
 549         return ret;
 550 }
 551
 552 /*!
 553  *\brief        Find out if a tag matches a condition
 554  *
 555  *\param        prop Matcher structure
 556  *\param        msginfo message to check
 557  *
 558  *\return       gboolean TRUE if msginfo matches the condition in the
 559  *              matcher structure
 560  */
 561 static gboolean matcherprop_tag_match(MatcherProp *prop, MsgInfo *msginfo,
 562                                          const gchar *debug_context)
 563 {
 564         gboolean ret = FALSE;
 565         GSList *cur;
 566
 567         if (msginfo == NULL || msginfo->tags == NULL)
 568                 return FALSE;
 569
 570         for (cur = msginfo->tags; cur; cur = cur->next) {
 571                 const gchar *str = tags_get_tag(GPOINTER_TO_INT(cur->data));
 572                 if (!str)
 573                         continue;
 574                 if (matcherprop_string_match(prop, str, debug_context)) {
 575                         ret = TRUE;
 576                         break;
 577                 }
 578         }
 579         return ret;
 580 }
 581
 582 /*!
 583  *\brief        Find out if the string-ed list matches a condition
 584  *
 585  *\param        prop Matcher structure
 586  *\param        list GSList of strings to check
 587  *
 588  *\return       gboolean TRUE if str matches the condition in the
 589  *              matcher structure
 590  */
 591 static gboolean matcherprop_list_match(MatcherProp *prop, const GSList *list,
 592 const gchar *debug_context)
 593 {
 594         const GSList *cur;
 595
 596         for(cur = list; cur != NULL; cur = cur->next) {
 597                 if (matcherprop_string_match(prop, (gchar *)cur->data, debug_context))
 598                         return TRUE;
 599         }
 600         return FALSE;
 601 }
 602
 603 static gboolean matcherprop_header_line_match(MatcherProp *prop, const gchar *hdr,
 604                                               const gchar *str, const gchar *debug_context)
 605 {
 606         gchar *line = NULL;
 607         gboolean res = FALSE;
 608
 609         if (hdr == NULL || str == NULL)
 610                 return FALSE;
 611
 612         line = g_strdup_printf("%s %s", hdr, str);
 613         res = matcherprop_string_match(prop, line, debug_context);
 614         g_free(line);
 615
 616         return res;
 617 }
 618
 619 #ifdef USE_PTHREAD
 620 typedef struct _thread_data {
 621         const gchar *cmd;
 622         gboolean done;
 623 } thread_data;
 624 #endif
 625
 626 #ifdef USE_PTHREAD
 627 static void *matcher_test_thread(void *data)
 628 {
 629         thread_data *td = (thread_data *)data;
 630         int result = -1;
 631
 632         pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
 633         pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
 634
 635         result = system(td->cmd);
 636         td->done = TRUE; /* let the caller thread join() */
 637         return GINT_TO_POINTER(result);
 638 }
 639 #endif
 640
 641 /*!
 642  *\brief        Execute a command defined in the matcher structure
 643  *
 644  *\param        prop Pointer to matcher structure
 645  *\param        info Pointer to message info structure
 646  *
 647  *\return       gboolean TRUE if command was executed succesfully
 648  */
 649 static gboolean matcherprop_match_test(const MatcherProp *prop,
 650                                           MsgInfo *info)
 651 {
 652         gchar *file;
 653         gchar *cmd;
 654         gint retval;
 655 #ifdef USE_PTHREAD
 656         pthread_t pt;
 657         pthread_attr_t pta;
 658         thread_data *td = g_new0(thread_data, 1);
 659         void *res = NULL;
 660         time_t start_time = time(NULL);
 661 #endif
 662
 663         file = procmsg_get_message_file(info);
 664         if (file == NULL) {
 665 #ifdef USE_PTHREAD
 666                 g_free(td);
 667 #endif
 668                 return FALSE;
 669         }
 670         g_free(file);
 671
 672         cmd = matching_build_command(prop->expr, info);
 673         if (cmd == NULL) {
 674 #ifdef USE_PTHREAD
 675                 g_free(td);
 676 #endif
 677                 return FALSE;
 678 }
 679
 680 #ifdef USE_PTHREAD
 681         /* debug output */
 682         if (debug_filtering_session
 683                         && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 684                 log_print(LOG_DEBUG_FILTERING,
 685                                 "starting threaded command [ %s ]\n",
 686                                 cmd);
 687         }
 688
 689         td->cmd = cmd;
 690         td->done = FALSE;
 691         if (pthread_attr_init(&pta) != 0 ||
 692             pthread_attr_setdetachstate(&pta, PTHREAD_CREATE_JOINABLE) != 0 ||
 693             pthread_create(&pt, &pta, matcher_test_thread, td) != 0)
 694                 retval = system(cmd);
 695         else {
 696                 debug_print("waiting for test thread\n");
 697                 while(!td->done) {
 698                         /* don't let the interface freeze while waiting */
 699                         claws_do_idle();
 700                         if (time(NULL) - start_time > 30) {
 701                                 pthread_cancel(pt);
 702                                 td->done = TRUE;
 703                                 retval = -1;
 704                         }
 705                 }
 706                 pthread_join(pt, &res);
 707                 retval = GPOINTER_TO_INT(res);
 708                 debug_print(" test thread returned %d\n", retval);
 709         }
 710         g_free(td);
 711 #else
 712         /* debug output */
 713         if (debug_filtering_session
 714                         && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 715                 log_print(LOG_DEBUG_FILTERING,
 716                                 "starting synchronous command [ %s ]\n",
 717                                 cmd);
 718         }
 719
 720         retval = system(cmd);
 721 #endif
 722         debug_print("Command exit code: %d\n", retval);
 723
 724         /* debug output */
 725         if (debug_filtering_session
 726                         && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 727                 log_print(LOG_DEBUG_FILTERING,
 728                                 "command returned [ %d ]\n",
 729                                 retval);
 730         }
 731
 732         g_free(cmd);
 733         return (retval == 0);
 734 }
 735
 736 /*!
 737  *\brief        Check if a message matches the condition in a matcher
 738  *              structure.
 739  *
 740  *\param        prop Pointer to matcher structure
 741  *\param        info Pointer to message info
 742  *
 743  *\return       gboolean TRUE if a match
 744  */
 745 gboolean matcherprop_match(MatcherProp *prop,
 746                            MsgInfo *info)
 747 {
 748         time_t t;
 749
 750         switch(prop->criteria) {
 751         case MATCHCRITERIA_ALL:
 752                 return TRUE;
 753         case MATCHCRITERIA_UNREAD:
 754                 return MSG_IS_UNREAD(info->flags);
 755         case MATCHCRITERIA_NOT_UNREAD:
 756                 return !MSG_IS_UNREAD(info->flags);
 757         case MATCHCRITERIA_NEW:
 758                 return MSG_IS_NEW(info->flags);
 759         case MATCHCRITERIA_NOT_NEW:
 760                 return !MSG_IS_NEW(info->flags);
 761         case MATCHCRITERIA_MARKED:
 762                 return MSG_IS_MARKED(info->flags);
 763         case MATCHCRITERIA_NOT_MARKED:
 764                 return !MSG_IS_MARKED(info->flags);
 765         case MATCHCRITERIA_DELETED:
 766                 return MSG_IS_DELETED(info->flags);
 767         case MATCHCRITERIA_NOT_DELETED:
 768                 return !MSG_IS_DELETED(info->flags);
 769         case MATCHCRITERIA_REPLIED:
 770                 return MSG_IS_REPLIED(info->flags);
 771         case MATCHCRITERIA_NOT_REPLIED:
 772                 return !MSG_IS_REPLIED(info->flags);
 773         case MATCHCRITERIA_FORWARDED:
 774                 return MSG_IS_FORWARDED(info->flags);
 775         case MATCHCRITERIA_NOT_FORWARDED:
 776                 return !MSG_IS_FORWARDED(info->flags);
 777         case MATCHCRITERIA_LOCKED:
 778                 return MSG_IS_LOCKED(info->flags);
 779         case MATCHCRITERIA_NOT_LOCKED:
 780                 return !MSG_IS_LOCKED(info->flags);
 781         case MATCHCRITERIA_SPAM:
 782                 return MSG_IS_SPAM(info->flags);
 783         case MATCHCRITERIA_NOT_SPAM:
 784                 return !MSG_IS_SPAM(info->flags);
 785         case MATCHCRITERIA_HAS_ATTACHMENT:
 786                 return MSG_IS_WITH_ATTACHMENT(info->flags);
 787         case MATCHCRITERIA_HAS_NO_ATTACHMENT:
 788                 return !MSG_IS_WITH_ATTACHMENT(info->flags);
 789         case MATCHCRITERIA_SIGNED:
 790                 return MSG_IS_SIGNED(info->flags);
 791         case MATCHCRITERIA_NOT_SIGNED:
 792                 return !MSG_IS_SIGNED(info->flags);
 793         case MATCHCRITERIA_COLORLABEL:
 794         {
 795                 gint color = MSG_GET_COLORLABEL_VALUE(info->flags);
 796                 gboolean ret = (color == prop->value);
 797
 798                 /* debug output */
 799                 if (debug_filtering_session
 800                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 801                         if (ret) {
 802                                 log_print(LOG_DEBUG_FILTERING,
 803                                                 "message color value [ %d ] matches color value [ %d ]\n",
 804                                                 color, prop->value);
 805                         } else {
 806                                 log_print(LOG_DEBUG_FILTERING,
 807                                                 "message color value [ %d ] does NOT match color value [ %d ]\n",
 808                                                 color, prop->value);
 809                         }
 810                 }
 811                 return ret;
 812         }
 813         case MATCHCRITERIA_NOT_COLORLABEL:
 814         {
 815                 gint color = MSG_GET_COLORLABEL_VALUE(info->flags);
 816                 gboolean ret = (color != prop->value);
 817
 818                 /* debug output */
 819                 if (debug_filtering_session
 820                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 821                         if (ret) {
 822                                 log_print(LOG_DEBUG_FILTERING,
 823                                                 "message color value [ %d ] matches color value [ %d ]\n",
 824                                                 color, prop->value);
 825                         } else {
 826                                 log_print(LOG_DEBUG_FILTERING,
 827                                                 "message color value [ %d ] does NOT match color value [ %d ]\n",
 828                                                 color, prop->value);
 829                         }
 830                 }
 831                 return ret;
 832         }
 833         case MATCHCRITERIA_IGNORE_THREAD:
 834                 return MSG_IS_IGNORE_THREAD(info->flags);
 835         case MATCHCRITERIA_NOT_IGNORE_THREAD:
 836                 return !MSG_IS_IGNORE_THREAD(info->flags);
 837         case MATCHCRITERIA_WATCH_THREAD:
 838                 return MSG_IS_WATCH_THREAD(info->flags);
 839         case MATCHCRITERIA_NOT_WATCH_THREAD:
 840                 return !MSG_IS_WATCH_THREAD(info->flags);
 841         case MATCHCRITERIA_SUBJECT:
 842                 return matcherprop_string_match(prop, info->subject,
 843                                                 prefs_common_translated_header_name("Subject:"));
 844         case MATCHCRITERIA_NOT_SUBJECT:
 845                 return !matcherprop_string_match(prop, info->subject,
 846                                                 prefs_common_translated_header_name("Subject:"));
 847         case MATCHCRITERIA_FROM:
 848         case MATCHCRITERIA_NOT_FROM:
 849         {
 850                 gchar *context;
 851                 gboolean ret;
 852
 853                 context = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("From:"));
 854                 ret = matcherprop_string_match(prop, info->from, context);
 855                 g_free(context);
 856                 return (prop->criteria == MATCHCRITERIA_FROM)? ret : !ret;
 857         }
 858         case MATCHCRITERIA_TO:
 859         case MATCHCRITERIA_NOT_TO:
 860         {
 861                 gchar *context;
 862                 gboolean ret;
 863
 864                 context = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("To:"));
 865                 ret = matcherprop_string_match(prop, info->to, context);
 866                 g_free(context);
 867                 return (prop->criteria == MATCHCRITERIA_TO)? ret : !ret;
 868         }
 869         case MATCHCRITERIA_CC:
 870         case MATCHCRITERIA_NOT_CC:
 871         {
 872                 gchar *context;
 873                 gboolean ret;
 874
 875                 context = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("Cc:"));
 876                 ret = matcherprop_string_match(prop, info->cc, context);
 877                 g_free(context);
 878                 return (prop->criteria == MATCHCRITERIA_CC)? ret : !ret;
 879         }
 880         case MATCHCRITERIA_TO_OR_CC:
 881         {
 882                 gchar *context1, *context2;
 883                 gboolean ret;
 884
 885                 context1 = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("To:"));
 886                 context2 = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("Cc:"));
 887                 ret = matcherprop_string_match(prop, info->to, context1)
 888                         || matcherprop_string_match(prop, info->cc, context2);
 889                 g_free(context1);
 890                 g_free(context2);
 891                 return ret;
 892         }
 893         case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
 894         {
 895                 gchar *context1, *context2;
 896                 gboolean ret;
 897
 898                 context1 = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("To:"));
 899                 context2 = g_strdup_printf(_("%s header"), prefs_common_translated_header_name("Cc:"));
 900                 ret = !(matcherprop_string_match(prop, info->to, context1)
 901                         || matcherprop_string_match(prop, info->cc, context2));
 902                 g_free(context1);
 903                 g_free(context2);
 904                 return ret;
 905         }
 906         case MATCHCRITERIA_TAG:
 907         case MATCHCRITERIA_NOT_TAG:
 908         {
 909                 gboolean ret;
 910
 911                 ret = matcherprop_tag_match(prop, info, _("Tag"));
 912                 return (prop->criteria == MATCHCRITERIA_TAG)? ret : !ret;
 913         }
 914         case MATCHCRITERIA_TAGGED:
 915         case MATCHCRITERIA_NOT_TAGGED:
 916         {
 917                 gboolean ret;
 918
 919                 ret = (info->tags != NULL);
 920                 return (prop->criteria == MATCHCRITERIA_TAGGED)? ret : !ret;
 921         }
 922         case MATCHCRITERIA_AGE_GREATER:
 923         {
 924                 gboolean ret;
 925                 gint age;
 926
 927                 t = time(NULL);
 928                 age = ((t - info->date_t) / (60 * 60 * 24));
 929                 ret = (age >= prop->value);
 930
 931                 /* debug output */
 932                 if (debug_filtering_session
 933                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 934                         if (ret) {
 935                                 log_print(LOG_DEBUG_FILTERING,
 936                                                 "message age [ %d ] is greater than [ %d ]\n",
 937                                                 age, prop->value);
 938                         } else {
 939                                 log_print(LOG_DEBUG_FILTERING,
 940                                                 "message age [ %d ] is not greater than [ %d ]\n",
 941                                                 age, prop->value);
 942                         }
 943                 }
 944                 return ret;
 945         }
 946         case MATCHCRITERIA_AGE_LOWER:
 947         {
 948                 gboolean ret;
 949                 gint age;
 950
 951                 t = time(NULL);
 952                 age = ((t - info->date_t) / (60 * 60 * 24));
 953                 ret = (age < prop->value);
 954
 955                 /* debug output */
 956                 if (debug_filtering_session
 957                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 958                         if (ret) {
 959                                 log_print(LOG_DEBUG_FILTERING,
 960                                                 "message age [ %d ] is lower than [ %d ]\n",
 961                                                 age, prop->value);
 962                         } else {
 963                                 log_print(LOG_DEBUG_FILTERING,
 964                                                 "message age [ %d ] is not lower than [ %d ]\n",
 965                                                 age, prop->value);
 966                         }
 967                 }
 968                 return ret;
 969         }
 970         case MATCHCRITERIA_SCORE_GREATER:
 971         {
 972                 gboolean ret = (info->score > prop->value);
 973
 974                 /* debug output */
 975                 if (debug_filtering_session
 976                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 977                         if (ret) {
 978                                 log_print(LOG_DEBUG_FILTERING,
 979                                                 "message score [ %d ] is greater than [ %d ]\n",
 980                                                 info->score, prop->value);
 981                         } else {
 982                                 log_print(LOG_DEBUG_FILTERING,
 983                                                 "message score [ %d ] is not greater than [ %d ]\n",
 984                                                 info->score, prop->value);
 985                         }
 986                 }
 987                 return ret;
 988         }
 989         case MATCHCRITERIA_SCORE_LOWER:
 990         {
 991                 gboolean ret = (info->score < prop->value);
 992
 993                 /* debug output */
 994                 if (debug_filtering_session
 995                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
 996                         if (ret) {
 997                                 log_print(LOG_DEBUG_FILTERING,
 998                                                 "message score [ %d ] is lower than [ %d ]\n",
 999                                                 info->score, prop->value);
1000                         } else {
1001                                 log_print(LOG_DEBUG_FILTERING,
1002                                                 "message score [ %d ] is not lower than [ %d ]\n",
1003                                                 info->score, prop->value);
1004                         }
1005                 }
1006                 return ret;
1007         }
1008         case MATCHCRITERIA_SCORE_EQUAL:
1009         {
1010                 gboolean ret = (info->score == prop->value);
1011
1012                 /* debug output */
1013                 if (debug_filtering_session
1014                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1015                         if (ret) {
1016                                 log_print(LOG_DEBUG_FILTERING,
1017                                                 "message score [ %d ] is equal to [ %d ]\n",
1018                                                 info->score, prop->value);
1019                         } else {
1020                                 log_print(LOG_DEBUG_FILTERING,
1021                                                 "message score [ %d ] is not equal to [ %d ]\n",
1022                                                 info->score, prop->value);
1023                         }
1024                 }
1025                 return ret;
1026         }
1027         case MATCHCRITERIA_SIZE_GREATER:
1028         {
1029                 /* FIXME: info->size is a goffset */
1030                 gboolean ret = (info->size > (goffset) prop->value);
1031
1032                 /* debug output */
1033                 if (debug_filtering_session
1034                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1035                         if (ret) {
1036                                 log_print(LOG_DEBUG_FILTERING,
1037                                                 "message size is greater than [ %d ]\n",
1038                                                 prop->value);
1039                         } else {
1040                                 log_print(LOG_DEBUG_FILTERING,
1041                                                 "message size is not greater than [ %d ]\n",
1042                                                 prop->value);
1043                         }
1044                 }
1045                 return ret;
1046         }
1047         case MATCHCRITERIA_SIZE_SMALLER:
1048         {
1049                 /* FIXME: info->size is a goffset */
1050                 gboolean ret = (info->size < (goffset) prop->value);
1051
1052                 /* debug output */
1053                 if (debug_filtering_session
1054                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1055                         if (ret) {
1056                                 log_print(LOG_DEBUG_FILTERING,
1057                                                 "message size is smaller than [ %d ]\n",
1058                                                 prop->value);
1059                         } else {
1060                                 log_print(LOG_DEBUG_FILTERING,
1061                                                 "message size is not smaller than [ %d ]\n",
1062                                                 prop->value);
1063                         }
1064                 }
1065                 return ret;
1066         }
1067         case MATCHCRITERIA_SIZE_EQUAL:
1068         {
1069                 /* FIXME: info->size is a goffset */
1070                 gboolean ret = (info->size == (goffset) prop->value);
1071
1072                 /* debug output */
1073                 if (debug_filtering_session
1074                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1075                         if (ret) {
1076                                 log_print(LOG_DEBUG_FILTERING,
1077                                                 "message size is equal to [ %d ]\n",
1078                                                 prop->value);
1079                         } else {
1080                                 log_print(LOG_DEBUG_FILTERING,
1081                                                 "message size is not equal to [ %d ]\n",
1082                                                 prop->value);
1083                         }
1084                 }
1085                 return ret;
1086         }
1087         case MATCHCRITERIA_PARTIAL:
1088         {
1089                 /* FIXME: info->size is a goffset */
1090                 gboolean ret = (info->total_size != 0 && info->size != (goffset)info->total_size);
1091
1092                 /* debug output */
1093                 if (debug_filtering_session
1094                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1095                         if (ret) {
1096                                 log_print(LOG_DEBUG_FILTERING,
1097                                                 "message is partially downloaded, size is less than total size [ %d ])\n",
1098                                                 info->total_size);
1099                         } else {
1100                                 log_print(LOG_DEBUG_FILTERING,
1101                                                 "message is not partially downloaded\n");
1102                         }
1103                 }
1104                 return ret;
1105         }
1106         case MATCHCRITERIA_NOT_PARTIAL:
1107         {
1108                 /* FIXME: info->size is a goffset */
1109                 gboolean ret = (info->total_size == 0 || info->size == (goffset)info->total_size);
1110
1111                 /* debug output */
1112                 if (debug_filtering_session
1113                                 && prefs_common.filtering_debug_level >= FILTERING_DEBUG_LEVEL_HIGH) {
1114                         if (ret) {
1115                                 log_print(LOG_DEBUG_FILTERING,
1116                                                 "message is not partially downloaded\n");
1117                         } else {
1118                                 log_print(LOG_DEBUG_FILTERING,
1119                                                 "message is partially downloaded, size is less than total size [ %d ])\n",
1120                                                 info->total_size);
1121                         }
1122                 }
1123                 return ret;
1124         }
1125         case MATCHCRITERIA_NEWSGROUPS:
1126         case MATCHCRITERIA_NOT_NEWSGROUPS:
1127         {
1128                 gchar *context;
1129                 gboolean ret;
1130
1131                 context = g_strdup_printf(_("%s header"),
1132                                                 prefs_common_translated_header_name("Newsgroups:"));
1133                 ret = matcherprop_string_match(prop, info->newsgroups, context);
1134                 g_free(context);
1135                 return (prop->criteria == MATCHCRITERIA_NEWSGROUPS)? ret : !ret;
1136         }
1137         case MATCHCRITERIA_INREPLYTO:
1138         case MATCHCRITERIA_NOT_INREPLYTO:
1139         {
1140                 gchar *context;
1141                 gboolean ret;
1142
1143                 context = g_strdup_printf(_("%s header"),
1144                                                 prefs_common_translated_header_name("In-Reply-To:"));
1145                 ret = matcherprop_string_match(prop, info->inreplyto, context);
1146                 g_free(context);
1147                 return (prop->criteria == MATCHCRITERIA_INREPLYTO)? ret : !ret;
1148         }
1149         case MATCHCRITERIA_REFERENCES:
1150         case MATCHCRITERIA_NOT_REFERENCES:
1151         {
1152                 gchar *context;
1153                 gboolean ret;
1154
1155                 context = g_strdup_printf(_("%s header"),
1156                                                 prefs_common_translated_header_name("References:"));
1157                 ret = matcherprop_list_match(prop, info->references, context);
1158                 g_free(context);
1159                 return (prop->criteria == MATCHCRITERIA_REFERENCES)? ret : !ret;
1160         }
1161         case MATCHCRITERIA_TEST:
1162                 return matcherprop_match_test(prop, info);
1163         case MATCHCRITERIA_NOT_TEST:
1164                 return !matcherprop_match_test(prop, info);
1165         default:
1166                 return FALSE;
1167         }
1168 }
1169
1170 /* ********************* MatcherList *************************** */
1171
1172 /*!
1173  *\brief        Create a new list of matchers
1174  *
1175  *\param        matchers List of matcher structures
1176  *\param        bool_and Operator
1177  *
1178  *\return       MatcherList * New list
1179  */
1180 MatcherList *matcherlist_new(GSList *matchers, gboolean bool_and)
1181 {
1182         MatcherList *cond;
1183
1184         cond = g_new0(MatcherList, 1);
1185
1186         cond->matchers = matchers;
1187         cond->bool_and = bool_and;
1188
1189         return cond;
1190 }
1191
1192 /*!
1193  *\brief        Frees a list of matchers
1194  *
1195  *\param        cond List of matchers
1196  */
1197 void matcherlist_free(MatcherList *cond)
1198 {
1199         GSList *l;
1200
1201         cm_return_if_fail(cond);
1202         for (l = cond->matchers ; l != NULL ; l = g_slist_next(l)) {
1203                 matcherprop_free((MatcherProp *) l->data);
1204         }
1205         g_slist_free(cond->matchers);
1206         g_free(cond);
1207 }
1208
1209 /*!
1210  *\brief        Skip all headers in a message file
1211  *
1212  *\param        fp Message file
1213  */
1214 static void matcherlist_skip_headers(FILE *fp)
1215 {
1216         gchar buf[BUFFSIZE];
1217
1218         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1)
1219                 ;
1220 }
1221
1222 /*!
1223  *\brief        Check if a header matches a matcher condition
1224  *
1225  *\param        matcher Matcher structure to check header for
1226  *\param        buf Header name
1227  *
1228  *\return       boolean TRUE if matching header
1229  */
1230 static gboolean matcherprop_match_one_header(MatcherProp *matcher,
1231                                              gchar *buf)
1232 {
1233         gboolean result = FALSE;
1234         Header *header = NULL;
1235
1236         switch (matcher->criteria) {
1237         case MATCHCRITERIA_HEADER:
1238         case MATCHCRITERIA_NOT_HEADER:
1239                 header = procheader_parse_header(buf);
1240                 if (!header)
1241                         return FALSE;
1242                 if (procheader_headername_equal(header->name,
1243                                                 matcher->header)) {
1244                         if (matcher->criteria == MATCHCRITERIA_HEADER)
1245                                 result = matcherprop_string_match(matcher, header->body, _("header"));
1246                         else
1247                                 result = !matcherprop_string_match(matcher, header->body, _("header"));
1248                         procheader_header_free(header);
1249                         return result;
1250                 }
1251                 else {
1252                         procheader_header_free(header);
1253                 }
1254                 break;
1255         case MATCHCRITERIA_HEADERS_PART:
1256         case MATCHCRITERIA_MESSAGE:
1257                 header = procheader_parse_header(buf);
1258                 if (!header)
1259                         return FALSE;
1260                 result = matcherprop_header_line_match(matcher,
1261                                header->name, header->body, _("header line"));
1262                 procheader_header_free(header);
1263                 return result;
1264         case MATCHCRITERIA_NOT_HEADERS_PART:
1265         case MATCHCRITERIA_NOT_MESSAGE:
1266                 header = procheader_parse_header(buf);
1267                 if (!header)
1268                         return FALSE;
1269                 result = !matcherprop_header_line_match(matcher,
1270                                header->name, header->body, _("header line"));
1271                 procheader_header_free(header);
1272                 return result;
1273         case MATCHCRITERIA_FOUND_IN_ADDRESSBOOK:
1274         case MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK:
1275                 {
1276                         GSList *address_list = NULL;
1277                         gint match = MATCH_ONE;
1278                         gboolean found = FALSE;
1279
1280                         /* how many address headers are me trying to mach? */
1281                         if (strcasecmp(matcher->header, "Any") == 0)
1282                                 match = MATCH_ANY;
1283                         else if (strcasecmp(matcher->header, "All") == 0)
1284                                         match = MATCH_ALL;
1285
1286                         if (match == MATCH_ONE) {
1287                                 /* matching one address header exactly, is that the right one? */
1288                                 header = procheader_parse_header(buf);
1289                                 if (!header ||
1290                                                 !procheader_headername_equal(header->name, matcher->header))
1291                                         return FALSE;
1292                                 address_list = address_list_append(address_list, header->body);
1293                                 if (address_list == NULL)
1294                                         return FALSE;
1295
1296                         } else {
1297                                 header = procheader_parse_header(buf);
1298                                 if (!header)
1299                                         return FALSE;
1300                                 /* address header is one of the headers we have to match when checking
1301                                    for any address header or all address headers? */
1302                                 if (procheader_headername_equal(header->name, "From") ||
1303                                          procheader_headername_equal(header->name, "To") ||
1304                                          procheader_headername_equal(header->name, "Cc") ||
1305                                          procheader_headername_equal(header->name, "Reply-To") ||
1306                                          procheader_headername_equal(header->name, "Sender"))
1307                                         address_list = address_list_append(address_list, header->body);
1308                                 if (address_list == NULL)
1309                                         return FALSE;
1310                         }
1311
1312                         found = match_with_addresses_in_addressbook
1313                                                         (matcher, address_list, matcher->criteria,
1314                                                          matcher->expr, match);
1315                         g_slist_free(address_list);
1316
1317                         if (matcher->criteria == MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK)
1318                                 return !found;
1319                         else
1320                                 return found;
1321         }
1322         }
1323
1324         return FALSE;
1325 }
1326
1327 /*!
1328  *\brief        Check if the matcher structure wants headers to
1329  *              be matched
1330  *
1331  *\param        matcher Matcher structure
1332  *
1333  *\return       gboolean TRUE if the matcher structure describes
1334  *              a header match condition
1335  */
1336 static gboolean matcherprop_criteria_headers(const MatcherProp *matcher)
1337 {
1338         switch (matcher->criteria) {
1339         case MATCHCRITERIA_HEADER:
1340         case MATCHCRITERIA_NOT_HEADER:
1341         case MATCHCRITERIA_HEADERS_PART:
1342         case MATCHCRITERIA_NOT_HEADERS_PART:
1343         case MATCHCRITERIA_FOUND_IN_ADDRESSBOOK:
1344         case MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK:
1345                 return TRUE;
1346         default:
1347                 return FALSE;
1348         }
1349 }
1350
1351 /*!
1352  *\brief        Check if the matcher structure wants the message
1353  *              to be matched (just perform an action on any
1354  *              message)
1355  *
1356  *\param        matcher Matcher structure
1357  *
1358  *\return       gboolean TRUE if matcher condition should match
1359  *              a message
1360  */
1361 static gboolean matcherprop_criteria_message(MatcherProp *matcher)
1362 {
1363         switch (matcher->criteria) {
1364         case MATCHCRITERIA_MESSAGE:
1365         case MATCHCRITERIA_NOT_MESSAGE:
1366                 return TRUE;
1367         default:
1368                 return FALSE;
1369         }
1370 }
1371
1372 /*!
1373  *\brief        Check if a list of conditions matches one header in
1374  *              a message file.
1375  *
1376  *\param        matchers List of conditions
1377  *\param        fp Message file
1378  *
1379  *\return       gboolean TRUE if one of the headers is matched by
1380  *              the list of conditions.
1381  */
1382 static gboolean matcherlist_match_headers(MatcherList *matchers, FILE *fp)
1383 {
1384         GSList *l;
1385         gchar buf[BUFFSIZE];
1386
1387         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1) {
1388                 for (l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
1389                         MatcherProp *matcher = (MatcherProp *) l->data;
1390                         gint match = MATCH_ANY;
1391
1392                         if (matcher->done)
1393                                 continue;
1394
1395                         /* determine the match range (all, any are our concern here) */
1396                         if (matcher->criteria == MATCHCRITERIA_NOT_HEADERS_PART ||
1397                             matcher->criteria == MATCHCRITERIA_NOT_MESSAGE) {
1398                                 match = MATCH_ALL;
1399
1400                         } else if (matcher->criteria == MATCHCRITERIA_FOUND_IN_ADDRESSBOOK ||
1401                                            matcher->criteria == MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK) {
1402                                 Header *header = NULL;
1403
1404                                 /* address header is one of the headers we have to match when checking
1405                                    for any address header or all address headers? */
1406                                 header = procheader_parse_header(buf);
1407                                 if (header &&
1408                                         (procheader_headername_equal(header->name, "From") ||
1409                                          procheader_headername_equal(header->name, "To") ||
1410                                          procheader_headername_equal(header->name, "Cc") ||
1411                                          procheader_headername_equal(header->name, "Reply-To") ||
1412                                          procheader_headername_equal(header->name, "Sender"))) {
1413
1414                                         if (strcasecmp(matcher->header, "Any") == 0)
1415                                                 match = MATCH_ANY;
1416                                         else if (strcasecmp(matcher->header, "All") == 0)
1417                                                 match = MATCH_ALL;
1418                                         else
1419                                                 match = MATCH_ONE;
1420                                 } else {
1421                                         /* further call to matcherprop_match_one_header() can't match
1422                                            and it irrelevant, so: don't alter the match result */
1423                                         continue;
1424                                 }
1425                         }
1426
1427                         /* ZERO line must NOT match for the rule to match.
1428                          */
1429                         if (match == MATCH_ALL) {
1430                                 if (matcherprop_match_one_header(matcher, buf)) {
1431                                         matcher->result = TRUE;
1432                                 } else {
1433                                         matcher->result = FALSE;
1434                                         matcher->done = TRUE;
1435                                 }
1436                         /* else, just one line matching is enough for the rule to match
1437                          */
1438                         } else if (matcherprop_criteria_headers(matcher) ||
1439                                    matcherprop_criteria_message(matcher)) {
1440                                 if (matcherprop_match_one_header(matcher, buf)) {
1441                                         matcher->result = TRUE;
1442                                         matcher->done = TRUE;
1443                                 }
1444                         }
1445
1446                         /* if the rule matched and the matchers are OR, no need to
1447                          * check the others */
1448                         if (matcher->result && matcher->done) {
1449                                 if (!matchers->bool_and)
1450                                         return TRUE;
1451                         }
1452                 }
1453         }
1454
1455         return FALSE;
1456 }
1457
1458 /*!
1459  *\brief        Check if a matcher wants to check the message body
1460  *
1461  *\param        matcher Matcher structure
1462  *
1463  *\return       gboolean TRUE if body must be matched.
1464  */
1465 static gboolean matcherprop_criteria_body(const MatcherProp *matcher)
1466 {
1467         switch (matcher->criteria) {
1468         case MATCHCRITERIA_BODY_PART:
1469         case MATCHCRITERIA_NOT_BODY_PART:
1470                 return TRUE;
1471         default:
1472                 return FALSE;
1473         }
1474 }
1475
1476 /*!
1477  *\brief        Check if a line in a message file's body matches
1478  *              the criteria
1479  *
1480  *\param        matchers List of conditions
1481  *\param        fp Message file
1482  *
1483  *\return       gboolean TRUE if succesful match
1484  */
1485 static gboolean matcherlist_match_body(MatcherList *matchers, gboolean body_only, MsgInfo *info)
1486 {
1487         GSList *l;
1488         MimeInfo *mimeinfo = NULL;
1489         MimeInfo *partinfo = NULL;
1490         gchar buf[BUFFSIZE];
1491         gboolean first_text_found = FALSE;
1492         FILE *outfp = NULL;
1493
1494         cm_return_val_if_fail(info != NULL, FALSE);
1495
1496         mimeinfo = procmime_scan_message(info);
1497
1498         /* Skip headers */
1499         partinfo = procmime_mimeinfo_next(mimeinfo);
1500
1501         for (; partinfo != NULL; partinfo = procmime_mimeinfo_next(partinfo)) {
1502
1503                 if (partinfo->type != MIMETYPE_TEXT && body_only)
1504                         continue;
1505
1506                 if (partinfo->type == MIMETYPE_TEXT) {
1507                         first_text_found = TRUE;
1508                         outfp = procmime_get_text_content(partinfo);
1509                 } else
1510                         outfp = procmime_get_binary_content(partinfo);
1511
1512                 if (!outfp) {
1513                         procmime_mimeinfo_free_all(mimeinfo);
1514                         return FALSE;
1515                 }
1516
1517                 while (fgets(buf, sizeof(buf), outfp) != NULL) {
1518                         strretchomp(buf);
1519
1520                         for (l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
1521                                 MatcherProp *matcher = (MatcherProp *) l->data;
1522
1523                                 if (matcher->done)
1524                                         continue;
1525
1526                                 /* Don't scan non-text parts when looking in body, only
1527                                  * when looking in whole message
1528                                  */
1529                                 if (partinfo && partinfo->type != MIMETYPE_TEXT &&
1530                                 (matcher->criteria == MATCHCRITERIA_NOT_BODY_PART ||
1531                                 matcher->criteria == MATCHCRITERIA_BODY_PART))
1532                                         continue;
1533
1534                                 /* if the criteria is ~body_part or ~message, ZERO lines
1535                                  * must match for the rule to match.
1536                                  */
1537                                 if (matcher->criteria == MATCHCRITERIA_NOT_BODY_PART ||
1538                                     matcher->criteria == MATCHCRITERIA_NOT_MESSAGE) {
1539                                         if (matcherprop_string_match(matcher, buf,
1540                                                                 _("body line"))) {
1541                                                 matcher->result = FALSE;
1542                                                 matcher->done = TRUE;
1543                                         } else
1544                                                 matcher->result = TRUE;
1545                                 /* else, just one line has to match */
1546                                 } else if (matcherprop_criteria_body(matcher) ||
1547                                            matcherprop_criteria_message(matcher)) {
1548                                         if (matcherprop_string_match(matcher, buf,
1549                                                                 _("body line"))) {
1550                                                 matcher->result = TRUE;
1551                                                 matcher->done = TRUE;
1552                                         }
1553                                 }
1554
1555                                 /* if the matchers are OR'ed and the rule matched,
1556                                  * no need to check the others. */
1557                                 if (matcher->result && matcher->done) {
1558                                         if (!matchers->bool_and) {
1559                                                 procmime_mimeinfo_free_all(mimeinfo);
1560                                                 fclose(outfp);
1561                                                 return TRUE;
1562                                         }
1563                                 }
1564                         }
1565                 }
1566                 fclose(outfp);
1567
1568                 if (body_only && first_text_found)
1569                         break;
1570         }
1571         procmime_mimeinfo_free_all(mimeinfo);
1572
1573         return FALSE;
1574 }
1575
1576 /*!
1577  *\brief        Check if a message file matches criteria
1578  *
1579  *\param        matchers Criteria
1580  *\param        info Message info
1581  *\param        result Default result
1582  *
1583  *\return       gboolean TRUE if matched
1584  */
1585 static gboolean matcherlist_match_file(MatcherList *matchers, MsgInfo *info,
1586                                 gboolean result)
1587 {
1588         gboolean read_headers;
1589         gboolean read_body;
1590         gboolean body_only;
1591         GSList *l;
1592         FILE *fp;
1593         gchar *file;
1594
1595         /* file need to be read ? */
1596
1597         read_headers = FALSE;
1598         read_body = FALSE;
1599         body_only = TRUE;
1600         for (l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
1601                 MatcherProp *matcher = (MatcherProp *) l->data;
1602
1603                 if (matcherprop_criteria_headers(matcher))
1604                         read_headers = TRUE;
1605                 if (matcherprop_criteria_body(matcher))
1606                         read_body = TRUE;
1607                 if (matcherprop_criteria_message(matcher)) {
1608                         read_headers = TRUE;
1609                         read_body = TRUE;
1610                         body_only = FALSE;
1611                 }
1612                 matcher->result = FALSE;
1613                 matcher->done = FALSE;
1614         }
1615
1616         if (!read_headers && !read_body)
1617                 return result;
1618
1619         file = procmsg_get_message_file_full(info, read_headers, read_body);
1620         if (file == NULL)
1621                 return FALSE;
1622
1623         if ((fp = g_fopen(file, "rb")) == NULL) {
1624                 FILE_OP_ERROR(file, "fopen");
1625                 g_free(file);
1626                 return result;
1627         }
1628
1629         /* read the headers */
1630
1631         if (read_headers) {
1632                 if (matcherlist_match_headers(matchers, fp))
1633                         read_body = FALSE;
1634         } else {
1635                 matcherlist_skip_headers(fp);
1636         }
1637
1638         /* read the body */
1639         if (read_body) {
1640                 matcherlist_match_body(matchers, body_only, info);
1641         }
1642
1643         for (l = matchers->matchers; l != NULL; l = g_slist_next(l)) {
1644                 MatcherProp *matcher = (MatcherProp *) l->data;
1645
1646                 if (matcherprop_criteria_headers(matcher) ||
1647                     matcherprop_criteria_body(matcher)    ||
1648                     matcherprop_criteria_message(matcher)) {
1649                         if (matcher->result) {
1650                                 if (!matchers->bool_and) {
1651                                         result = TRUE;
1652                                         break;
1653                                 }
1654                         }
1655                         else {
1656                                 if (matchers->bool_and) {
1657                                         result = FALSE;
1658                                         break;
1659                                 }
1660                         }
1661                 }
1662         }
1663
1664         g_free(file);
1665
1666         fclose(fp);
1667
1668         return result;
1669 }
1670
1671 /*!
1672  *\brief        Test list of conditions on a message.
1673  *
1674  *\param        matchers List of conditions
1675  *\param        info Message info
1676  *
1677  *\return       gboolean TRUE if matched
1678  */
1679 gboolean matcherlist_match(MatcherList *matchers, MsgInfo *info)
1680 {
1681         GSList *l;
1682         gboolean result;
1683
1684         if (!matchers)
1685                 return FALSE;
1686
1687         if (matchers->bool_and)
1688                 result = TRUE;
1689         else
1690                 result = FALSE;
1691
1692         /* test the cached elements */
1693
1694         for (l = matchers->matchers; l != NULL ;l = g_slist_next(l)) {
1695                 MatcherProp *matcher = (MatcherProp *) l->data;
1696
1697                 if (debug_filtering_session) {
1698                         gchar *buf = matcherprop_to_string(matcher);
1699                         log_print(LOG_DEBUG_FILTERING, _("checking if message matches [ %s ]\n"), buf);
1700                         g_free(buf);
1701                 }
1702
1703                 switch(matcher->criteria) {
1704                 case MATCHCRITERIA_ALL:
1705                 case MATCHCRITERIA_UNREAD:
1706                 case MATCHCRITERIA_NOT_UNREAD:
1707                 case MATCHCRITERIA_NEW:
1708                 case MATCHCRITERIA_NOT_NEW:
1709                 case MATCHCRITERIA_MARKED:
1710                 case MATCHCRITERIA_NOT_MARKED:
1711                 case MATCHCRITERIA_DELETED:
1712                 case MATCHCRITERIA_NOT_DELETED:
1713                 case MATCHCRITERIA_REPLIED:
1714                 case MATCHCRITERIA_NOT_REPLIED:
1715                 case MATCHCRITERIA_FORWARDED:
1716                 case MATCHCRITERIA_NOT_FORWARDED:
1717                 case MATCHCRITERIA_LOCKED:
1718                 case MATCHCRITERIA_NOT_LOCKED:
1719                 case MATCHCRITERIA_SPAM:
1720                 case MATCHCRITERIA_NOT_SPAM:
1721                 case MATCHCRITERIA_HAS_ATTACHMENT:
1722                 case MATCHCRITERIA_HAS_NO_ATTACHMENT:
1723                 case MATCHCRITERIA_SIGNED:
1724                 case MATCHCRITERIA_NOT_SIGNED:
1725                 case MATCHCRITERIA_COLORLABEL:
1726                 case MATCHCRITERIA_NOT_COLORLABEL:
1727                 case MATCHCRITERIA_IGNORE_THREAD:
1728                 case MATCHCRITERIA_NOT_IGNORE_THREAD:
1729                 case MATCHCRITERIA_WATCH_THREAD:
1730                 case MATCHCRITERIA_NOT_WATCH_THREAD:
1731                 case MATCHCRITERIA_SUBJECT:
1732                 case MATCHCRITERIA_NOT_SUBJECT:
1733                 case MATCHCRITERIA_FROM:
1734                 case MATCHCRITERIA_NOT_FROM:
1735                 case MATCHCRITERIA_TO:
1736                 case MATCHCRITERIA_NOT_TO:
1737                 case MATCHCRITERIA_CC:
1738                 case MATCHCRITERIA_NOT_CC:
1739                 case MATCHCRITERIA_TO_OR_CC:
1740                 case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
1741                 case MATCHCRITERIA_TAG:
1742                 case MATCHCRITERIA_NOT_TAG:
1743                 case MATCHCRITERIA_TAGGED:
1744                 case MATCHCRITERIA_NOT_TAGGED:
1745                 case MATCHCRITERIA_AGE_GREATER:
1746                 case MATCHCRITERIA_AGE_LOWER:
1747                 case MATCHCRITERIA_NEWSGROUPS:
1748                 case MATCHCRITERIA_NOT_NEWSGROUPS:
1749                 case MATCHCRITERIA_INREPLYTO:
1750                 case MATCHCRITERIA_NOT_INREPLYTO:
1751                 case MATCHCRITERIA_REFERENCES:
1752                 case MATCHCRITERIA_NOT_REFERENCES:
1753                 case MATCHCRITERIA_SCORE_GREATER:
1754                 case MATCHCRITERIA_SCORE_LOWER:
1755                 case MATCHCRITERIA_SCORE_EQUAL:
1756                 case MATCHCRITERIA_SIZE_GREATER:
1757                 case MATCHCRITERIA_SIZE_SMALLER:
1758                 case MATCHCRITERIA_SIZE_EQUAL:
1759                 case MATCHCRITERIA_TEST:
1760                 case MATCHCRITERIA_NOT_TEST:
1761                 case MATCHCRITERIA_PARTIAL:
1762                 case MATCHCRITERIA_NOT_PARTIAL:
1763                         if (matcherprop_match(matcher, info)) {
1764                                 if (!matchers->bool_and) {
1765                                         if (debug_filtering_session)
1766                                                 log_status_ok(LOG_DEBUG_FILTERING, _("message matches\n"));
1767                                         return TRUE;
1768                                 }
1769                         }
1770                         else {
1771                                 if (matchers->bool_and) {
1772                                         if (debug_filtering_session)
1773                                                 log_status_nok(LOG_DEBUG_FILTERING, _("message does not match\n"));
1774                                         return FALSE;
1775                                 }
1776                         }
1777                 }
1778         }
1779
1780         /* test the condition on the file */
1781
1782         if (matcherlist_match_file(matchers, info, result)) {
1783                 if (!matchers->bool_and) {
1784                         if (debug_filtering_session)
1785                                 log_status_ok(LOG_DEBUG_FILTERING, _("message matches\n"));
1786                         return TRUE;
1787                 }
1788         } else {
1789                 if (matchers->bool_and) {
1790                         if (debug_filtering_session)
1791                                 log_status_nok(LOG_DEBUG_FILTERING, _("message does not match\n"));
1792                         return FALSE;
1793                 }
1794         }
1795
1796         if (debug_filtering_session) {
1797                 if (result)
1798                         log_status_ok(LOG_DEBUG_FILTERING, _("message matches\n"));
1799                 else
1800                         log_status_nok(LOG_DEBUG_FILTERING, _("message does not match\n"));
1801         }
1802         return result;
1803 }
1804
1805
1806 static gint quote_filter_str(gchar * result, guint size,
1807                              const gchar * path)
1808 {
1809         const gchar * p;
1810         gchar * result_p;
1811         guint remaining;
1812
1813         result_p = result;
1814         remaining = size;
1815
1816         for(p = path ; * p != '\0' ; p ++) {
1817
1818                 if ((* p != '\"') && (* p != '\\')) {
1819                         if (remaining > 0) {
1820                                 * result_p = * p;
1821                                 result_p ++;
1822                                 remaining --;
1823                         }
1824                         else {
1825                                 result[size - 1] = '\0';
1826                                 return -1;
1827                         }
1828                 }
1829                 else {
1830                         if (remaining >= 2) {
1831                                 * result_p = '\\';
1832                                 result_p ++;
1833                                 * result_p = * p;
1834                                 result_p ++;
1835                                 remaining -= 2;
1836                         }
1837                         else {
1838                                 result[size - 1] = '\0';
1839                                 return -1;
1840                         }
1841                 }
1842         }
1843         if (remaining > 0) {
1844                 * result_p = '\0';
1845         }
1846         else {
1847                 result[size - 1] = '\0';
1848                 return -1;
1849         }
1850
1851         return 0;
1852 }
1853
1854
1855 gchar * matcher_quote_str(const gchar * src)
1856 {
1857         gchar * res;
1858         gint len;
1859
1860         len = strlen(src) * 2 + 1;
1861         res = g_malloc(len);
1862         quote_filter_str(res, len, src);
1863
1864         return res;
1865 }
1866
1867 /*!
1868  *\brief        Convert a matcher structure to a string
1869  *
1870  *\param        matcher Matcher structure
1871  *
1872  *\return       gchar * Newly allocated string
1873  */
1874 gchar *matcherprop_to_string(MatcherProp *matcher)
1875 {
1876         gchar *matcher_str = NULL;
1877         const gchar *criteria_str;
1878         const gchar *matchtype_str;
1879         int i;
1880         gchar * quoted_expr;
1881         gchar * quoted_header;
1882
1883         criteria_str = NULL;
1884         for (i = 0; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)); i++) {
1885                 if (matchparser_tab[i].id == matcher->criteria)
1886                         criteria_str = matchparser_tab[i].str;
1887         }
1888         if (criteria_str == NULL)
1889                 return NULL;
1890
1891         switch (matcher->criteria) {
1892         case MATCHCRITERIA_AGE_GREATER:
1893         case MATCHCRITERIA_AGE_LOWER:
1894         case MATCHCRITERIA_SCORE_GREATER:
1895         case MATCHCRITERIA_SCORE_LOWER:
1896         case MATCHCRITERIA_SCORE_EQUAL:
1897         case MATCHCRITERIA_SIZE_GREATER:
1898         case MATCHCRITERIA_SIZE_SMALLER:
1899         case MATCHCRITERIA_SIZE_EQUAL:
1900         case MATCHCRITERIA_COLORLABEL:
1901         case MATCHCRITERIA_NOT_COLORLABEL:
1902                 return g_strdup_printf("%s %i", criteria_str, matcher->value);
1903         case MATCHCRITERIA_ALL:
1904         case MATCHCRITERIA_UNREAD:
1905         case MATCHCRITERIA_NOT_UNREAD:
1906         case MATCHCRITERIA_NEW:
1907         case MATCHCRITERIA_NOT_NEW:
1908         case MATCHCRITERIA_MARKED:
1909         case MATCHCRITERIA_NOT_MARKED:
1910         case MATCHCRITERIA_DELETED:
1911         case MATCHCRITERIA_NOT_DELETED:
1912         case MATCHCRITERIA_REPLIED:
1913         case MATCHCRITERIA_NOT_REPLIED:
1914         case MATCHCRITERIA_FORWARDED:
1915         case MATCHCRITERIA_NOT_FORWARDED:
1916         case MATCHCRITERIA_LOCKED:
1917         case MATCHCRITERIA_NOT_LOCKED:
1918         case MATCHCRITERIA_SPAM:
1919         case MATCHCRITERIA_NOT_SPAM:
1920         case MATCHCRITERIA_HAS_ATTACHMENT:
1921         case MATCHCRITERIA_HAS_NO_ATTACHMENT:
1922         case MATCHCRITERIA_SIGNED:
1923         case MATCHCRITERIA_NOT_SIGNED:
1924         case MATCHCRITERIA_PARTIAL:
1925         case MATCHCRITERIA_NOT_PARTIAL:
1926         case MATCHCRITERIA_IGNORE_THREAD:
1927         case MATCHCRITERIA_NOT_IGNORE_THREAD:
1928         case MATCHCRITERIA_WATCH_THREAD:
1929         case MATCHCRITERIA_NOT_WATCH_THREAD:
1930         case MATCHCRITERIA_TAGGED:
1931         case MATCHCRITERIA_NOT_TAGGED:
1932                 return g_strdup(criteria_str);
1933         case MATCHCRITERIA_TEST:
1934         case MATCHCRITERIA_NOT_TEST:
1935                 quoted_expr = matcher_quote_str(matcher->expr);
1936                 matcher_str = g_strdup_printf("%s \"%s\"",
1937                                               criteria_str, quoted_expr);
1938                 g_free(quoted_expr);
1939                 return matcher_str;
1940         case MATCHCRITERIA_FOUND_IN_ADDRESSBOOK:
1941         case MATCHCRITERIA_NOT_FOUND_IN_ADDRESSBOOK:
1942                 quoted_header = matcher_quote_str(matcher->header);
1943                 quoted_expr = matcher_quote_str(matcher->expr);
1944                 matcher_str = g_strdup_printf("%s \"%s\" in \"%s\"",
1945                                               criteria_str, quoted_header, quoted_expr);
1946                 g_free(quoted_header);
1947                 g_free(quoted_expr);
1948                 return matcher_str;
1949         }
1950
1951         matchtype_str = NULL;
1952         for (i = 0; i < sizeof matchparser_tab / sizeof matchparser_tab[0]; i++) {
1953                 if (matchparser_tab[i].id == matcher->matchtype)
1954                         matchtype_str = matchparser_tab[i].str;
1955         }
1956
1957         if (matchtype_str == NULL)
1958                 return NULL;
1959
1960         switch (matcher->matchtype) {
1961         case MATCHTYPE_MATCH:
1962         case MATCHTYPE_MATCHCASE:
1963         case MATCHTYPE_REGEXP:
1964         case MATCHTYPE_REGEXPCASE:
1965                 quoted_expr = matcher_quote_str(matcher->expr);
1966                 if (matcher->header) {
1967                         quoted_header = matcher_quote_str(matcher->header);
1968                         matcher_str = g_strdup_printf
1969                                         ("%s \"%s\" %s \"%s\"",
1970                                          criteria_str, quoted_header,
1971                                          matchtype_str, quoted_expr);
1972                         g_free(quoted_header);
1973                 }
1974                 else
1975                         matcher_str = g_strdup_printf
1976                                         ("%s %s \"%s\"", criteria_str,
1977                                          matchtype_str, quoted_expr);
1978                 g_free(quoted_expr);
1979                 break;
1980         }
1981
1982         return matcher_str;
1983 }
1984
1985 /*!
1986  *\brief        Convert a list of conditions to a string
1987  *
1988  *\param        matchers List of conditions
1989  *
1990  *\return       gchar * Newly allocated string
1991  */
1992 gchar *matcherlist_to_string(const MatcherList *matchers)
1993 {
1994         gint count;
1995         gchar **vstr;
1996         GSList *l;
1997         gchar **cur_str;
1998         gchar *result = NULL;
1999
2000         count = g_slist_length(matchers->matchers);
2001         vstr = g_new(gchar *, count + 1);
2002
2003         for (l = matchers->matchers, cur_str = vstr; l != NULL;
2004              l = g_slist_next(l), cur_str ++) {
2005                 *cur_str = matcherprop_to_string((MatcherProp *) l->data);
2006                 if (*cur_str == NULL)
2007                         break;
2008         }
2009         *cur_str = NULL;
2010
2011         if (matchers->bool_and)
2012                 result = g_strjoinv(" & ", vstr);
2013         else
2014                 result = g_strjoinv(" | ", vstr);
2015
2016         for (cur_str = vstr ; *cur_str != NULL ; cur_str ++)
2017                 g_free(*cur_str);
2018         g_free(vstr);
2019
2020         return result;
2021 }
2022
2023
2024 #define STRLEN_ZERO(s) ((s) ? strlen(s) : 0)
2025 #define STRLEN_DEFAULT(s,d) ((s) ? strlen(s) : STRLEN_ZERO(d))
2026
2027 static void add_str_default(gchar ** dest,
2028                             const gchar * s, const gchar * d)
2029 {
2030         gchar quoted_str[4096];
2031         const gchar * str;
2032
2033         if (s != NULL)
2034                 str = s;
2035         else
2036                 str = d;
2037
2038         quote_cmd_argument(quoted_str, sizeof(quoted_str), str);
2039         strcpy(* dest, quoted_str);
2040
2041         (* dest) += strlen(* dest);
2042 }
2043
2044 /* matching_build_command() - preferably cmd should be unescaped */
2045 /*!
2046  *\brief        Build the command-line to execute
2047  *
2048  *\param        cmd String with command-line specifiers
2049  *\param        info Message info to use for command
2050  *
2051  *\return       gchar * Newly allocated string
2052  */
2053 gchar *matching_build_command(const gchar *cmd, MsgInfo *info)
2054 {
2055         const gchar *s = cmd;
2056         gchar *filename = NULL;
2057         gchar *processed_cmd;
2058         gchar *p;
2059         gint size;
2060
2061         const gchar *const no_subject    = _("(none)") ;
2062         const gchar *const no_from       = _("(none)") ;
2063         const gchar *const no_to         = _("(none)") ;
2064         const gchar *const no_cc         = _("(none)") ;
2065         const gchar *const no_date       = _("(none)") ;
2066         const gchar *const no_msgid      = _("(none)") ;
2067         const gchar *const no_newsgroups = _("(none)") ;
2068         const gchar *const no_references = _("(none)") ;
2069
2070         size = STRLEN_ZERO(cmd) + 1;
2071         while (*s != '\0') {
2072                 if (*s == '%') {
2073                         s++;
2074                         switch (*s) {
2075                         case '%':
2076                                 size -= 1;
2077                                 break;
2078                         case 's': /* subject */
2079                                 size += STRLEN_DEFAULT(info->subject, no_subject) - 2;
2080                                 break;
2081                         case 'f': /* from */
2082                                 size += STRLEN_DEFAULT(info->from, no_from) - 2;
2083                                 break;
2084                         case 't': /* to */
2085                                 size += STRLEN_DEFAULT(info->to, no_to) - 2;
2086                                 break;
2087                         case 'c': /* cc */
2088                                 size += STRLEN_DEFAULT(info->cc, no_cc) - 2;
2089                                 break;
2090                         case 'd': /* date */
2091                                 size += STRLEN_DEFAULT(info->date, no_date) - 2;
2092                                 break;
2093                         case 'i': /* message-id */
2094                                 size += STRLEN_DEFAULT(info->msgid, no_msgid) - 2;
2095                                 break;
2096                         case 'n': /* newsgroups */
2097                                 size += STRLEN_DEFAULT(info->newsgroups, no_newsgroups) - 2;
2098                                 break;
2099                         case 'r': /* references */
2100                                 /* FIXME: using the inreplyto header for reference */
2101                                 size += STRLEN_DEFAULT(info->inreplyto, no_references) - 2;
2102                                 break;
2103                         case 'F': /* file */
2104                                 if (filename == NULL)
2105                                         filename = folder_item_fetch_msg(info->folder, info->msgnum);
2106
2107                                 if (filename == NULL) {
2108                                         g_warning("filename is not set");
2109                                         return NULL;
2110                                 }
2111                                 else {
2112                                         size += strlen(filename) - 2;
2113                                 }
2114                                 break;
2115                         }
2116                         s++;
2117                 }
2118                 else s++;
2119         }
2120
2121         /* as the string can be quoted, we double the result */
2122         size *= 2;
2123
2124         processed_cmd = g_new0(gchar, size);
2125         s = cmd;
2126         p = processed_cmd;
2127
2128         while (*s != '\0') {
2129                 if (*s == '%') {
2130                         s++;
2131                         switch (*s) {
2132                         case '%':
2133                                 *p = '%';
2134                                 p++;
2135                                 break;
2136                         case 's': /* subject */
2137                                 add_str_default(&p, info->subject,
2138                                                 no_subject);
2139                                 break;
2140                         case 'f': /* from */
2141                                 add_str_default(&p, info->from,
2142                                                 no_from);
2143                                 break;
2144                         case 't': /* to */
2145                                 add_str_default(&p, info->to,
2146                                                 no_to);
2147                                 break;
2148                         case 'c': /* cc */
2149                                 add_str_default(&p, info->cc,
2150                                                 no_cc);
2151                                 break;
2152                         case 'd': /* date */
2153                                 add_str_default(&p, info->date,
2154                                                 no_date);
2155                                 break;
2156                         case 'i': /* message-id */
2157                                 add_str_default(&p, info->msgid,
2158                                                 no_msgid);
2159                                 break;
2160                         case 'n': /* newsgroups */
2161                                 add_str_default(&p, info->newsgroups,
2162                                                 no_newsgroups);
2163                                 break;
2164                         case 'r': /* references */
2165                                 /* FIXME: using the inreplyto header for references */
2166                                 add_str_default(&p, info->inreplyto, no_references);
2167                                 break;
2168                         case 'F': /* file */
2169                                 if (filename != NULL)
2170                                         add_str_default(&p, filename, NULL);
2171                                 break;
2172                         default:
2173                                 *p = '%';
2174                                 p++;
2175                                 *p = *s;
2176                                 p++;
2177                                 break;
2178                         }
2179                         s++;
2180                 }
2181                 else {
2182                         *p = *s;
2183                         p++;
2184                         s++;
2185                 }
2186         }
2187         g_free(filename);
2188
2189         return processed_cmd;
2190 }
2191 #undef STRLEN_DEFAULT
2192 #undef STRLEN_ZERO
2193
2194 /* ************************************************************ */
2195
2196
2197 /*!
2198  *\brief        Write filtering list to file
2199  *
2200  *\param        fp File
2201  *\param        prefs_filtering List of filtering conditions
2202  */
2203 static int prefs_filtering_write(FILE *fp, GSList *prefs_filtering)
2204 {
2205         GSList *cur = NULL;
2206
2207         for (cur = prefs_filtering; cur != NULL; cur = cur->next) {
2208                 gchar *filtering_str = NULL;
2209                 gchar *tmp_name = NULL;
2210                 FilteringProp *prop = NULL;
2211
2212                 if (NULL == (prop = (FilteringProp *) cur->data))
2213                         continue;
2214
2215                 if (NULL == (filtering_str = filteringprop_to_string(prop)))
2216                         continue;
2217
2218                 if (prop->enabled) {
2219                         if (fputs("enabled ", fp) == EOF) {
2220                                 FILE_OP_ERROR("filtering config", "fputs");
2221                                 return -1;
2222                         }
2223                 } else {
2224                         if (fputs("disabled ", fp) == EOF) {
2225                                 FILE_OP_ERROR("filtering config", "fputs");
2226                                 return -1;
2227                         }
2228                 }
2229
2230                 if (fputs("rulename \"", fp) == EOF) {
2231                         FILE_OP_ERROR("filtering config", "fputs");
2232                         g_free(filtering_str);
2233                         return -1;
2234                 }
2235                 tmp_name = prop->name;
2236                 while (tmp_name && *tmp_name != '\0') {
2237                         if (*tmp_name != '"') {
2238                                 if (fputc(*tmp_name, fp) == EOF) {
2239                                         FILE_OP_ERROR("filtering config", "fputs || fputc");
2240                                         g_free(filtering_str);
2241                                         return -1;
2242                                 }
2243                         } else if (*tmp_name == '"') {
2244                                 if (fputc('\\', fp) == EOF ||
2245                                     fputc('"', fp) == EOF) {
2246                                         FILE_OP_ERROR("filtering config", "fputs || fputc");
2247                                         g_free(filtering_str);
2248                                         return -1;
2249                                 }
2250                         }
2251                         tmp_name ++;
2252                 }
2253                 if (fputs("\" ", fp) == EOF) {
2254                         FILE_OP_ERROR("filtering config", "fputs");
2255                         g_free(filtering_str);
2256                         return -1;
2257                 }
2258
2259                 if (prop->account_id != 0) {
2260                         gchar *tmp = NULL;
2261
2262                         tmp = g_strdup_printf("account %d ", prop->account_id);
2263                         if (fputs(tmp, fp) == EOF) {
2264                                 FILE_OP_ERROR("filtering config", "fputs");
2265                                 g_free(tmp);
2266                                 return -1;
2267                         }
2268                         g_free(tmp);
2269                 }
2270
2271                 if(fputs(filtering_str, fp) == EOF ||
2272                     fputc('\n', fp) == EOF) {
2273                         FILE_OP_ERROR("filtering config", "fputs || fputc");
2274                         g_free(filtering_str);
2275                         return -1;
2276                 }
2277                 g_free(filtering_str);
2278         }
2279
2280         return 0;
2281 }
2282
2283 typedef struct _NodeLoopData {
2284         FILE *fp;
2285         gboolean error;
2286 } NodeLoopData;
2287
2288 /*!
2289  *\brief        Write matchers from a folder item
2290  *
2291  *\param        node Node with folder info
2292  *\param        data File pointer
2293  *
2294  *\return       gboolean FALSE
2295  */
2296 static gboolean prefs_matcher_write_func(GNode *node, gpointer d)
2297 {
2298         FolderItem *item;
2299         NodeLoopData *data = (NodeLoopData *)d;
2300         gchar *id;
2301         GSList *prefs_filtering;
2302
2303         item = node->data;
2304         /* prevent warning */
2305         if (item->path == NULL)
2306                 return FALSE;
2307         id = folder_item_get_identifier(item);
2308         if (id == NULL)
2309                 return FALSE;
2310         prefs_filtering = item->prefs->processing;
2311
2312         if (prefs_filtering != NULL) {
2313                 if (fprintf(data->fp, "[%s]\n", id) < 0) {
2314                         data->error = TRUE;
2315                         goto fail;
2316                 }
2317                 if (prefs_filtering_write(data->fp, prefs_filtering) < 0) {
2318                         data->error = TRUE;
2319                         goto fail;
2320                 }
2321                 if (fputc('\n', data->fp) == EOF) {
2322                         data->error = TRUE;
2323                         goto fail;
2324                 }
2325         }
2326 fail:
2327         g_free(id);
2328
2329         return FALSE;
2330 }
2331
2332 /*!
2333  *\brief        Save matchers from folder items
2334  *
2335  *\param        fp File
2336  */
2337 static int prefs_matcher_save(FILE *fp)
2338 {
2339         GList *cur;
2340         NodeLoopData data;
2341
2342         data.fp = fp;
2343         data.error = FALSE;
2344
2345         for (cur = folder_get_list() ; cur != NULL ; cur = g_list_next(cur)) {
2346                 Folder *folder;
2347
2348                 folder = (Folder *) cur->data;
2349                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
2350                                 prefs_matcher_write_func, &data);
2351         }
2352
2353         if (data.error == TRUE)
2354                 return -1;
2355
2356         /* pre global rules */
2357         if (fprintf(fp, "[preglobal]\n") < 0 ||
2358             prefs_filtering_write(fp, pre_global_processing) < 0 ||
2359             fputc('\n', fp) == EOF)
2360                 return -1;
2361
2362         /* post global rules */
2363         if (fprintf(fp, "[postglobal]\n") < 0 ||
2364             prefs_filtering_write(fp, post_global_processing) < 0 ||
2365             fputc('\n', fp) == EOF)
2366                 return -1;
2367
2368         /* filtering rules */
2369         if (fprintf(fp, "[filtering]\n") < 0 ||
2370             prefs_filtering_write(fp, filtering_rules) < 0 ||
2371             fputc('\n', fp) == EOF)
2372                 return -1;
2373
2374         return 0;
2375 }
2376
2377 /*!
2378  *\brief        Write filtering / matcher configuration file
2379  */
2380 void prefs_matcher_write_config(void)
2381 {
2382         gchar *rcpath;
2383         PrefFile *pfile;
2384
2385         debug_print("Writing matcher configuration...\n");
2386
2387         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2388                              MATCHER_RC, NULL);
2389
2390         if ((pfile = prefs_write_open(rcpath)) == NULL) {
2391                 g_warning("failed to write configuration to file\n");
2392                 g_free(rcpath);
2393                 return;
2394         }
2395
2396         g_free(rcpath);
2397
2398         if (prefs_matcher_save(pfile->fp) < 0) {
2399                 g_warning("failed to write configuration to file\n");
2400                 prefs_file_close_revert(pfile);
2401         } else if (prefs_file_close(pfile) < 0) {
2402                 g_warning("failed to save configuration to file\n");
2403         }
2404 }
2405
2406 /* ******************************************************************* */
2407
2408 static void matcher_add_rulenames(const gchar *rcpath)
2409 {
2410         gchar *newpath = g_strconcat(rcpath, ".new", NULL);
2411         FILE *src = g_fopen(rcpath, "rb");
2412         FILE *dst = g_fopen(newpath, "wb");
2413         gchar buf[BUFFSIZE];
2414         int r;
2415         if (src == NULL) {
2416                 perror("fopen");
2417                 if (dst)
2418                         fclose(dst);
2419                 g_free(newpath);
2420                 return;
2421         }
2422         if (dst == NULL) {
2423                 perror("fopen");
2424                 if (src)
2425                         fclose(src);
2426                 g_free(newpath);
2427                 return;
2428         }
2429
2430         while (fgets (buf, sizeof(buf), src) != NULL) {
2431                 if (strlen(buf) > 2 && buf[0] != '['
2432                 && strncmp(buf, "rulename \"", 10)
2433                 && strncmp(buf, "enabled rulename \"", 18)
2434                 && strncmp(buf, "disabled rulename \"", 18)) {
2435                         r = fwrite("enabled rulename \"\" ",
2436                                 strlen("enabled rulename \"\" "), 1, dst);
2437                 }
2438                 r = fwrite(buf, strlen(buf), 1, dst);
2439         }
2440         fclose(dst);
2441         fclose(src);
2442         move_file(newpath, rcpath, TRUE);
2443         g_free(newpath);
2444 }
2445
2446 /*!
2447  *\brief        Read matcher configuration
2448  */
2449 void prefs_matcher_read_config(void)
2450 {
2451         gchar *rcpath;
2452         gchar *rc_old_format;
2453         FILE *f;
2454
2455         create_matchparser_hashtab();
2456         prefs_filtering_clear();
2457
2458         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, MATCHER_RC, NULL);
2459         rc_old_format = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, MATCHER_RC,
2460                                 ".pre_names", NULL);
2461
2462         if (!is_file_exist(rc_old_format) && is_file_exist(rcpath)) {
2463                 /* backup file with no rules names, in case
2464                  * anything goes wrong */
2465                 copy_file(rcpath, rc_old_format, FALSE);
2466                 /* now hack the file in order to have it to the new format */
2467                 matcher_add_rulenames(rcpath);
2468         }
2469
2470         g_free(rc_old_format);
2471
2472         f = g_fopen(rcpath, "rb");
2473         g_free(rcpath);
2474
2475         if (f != NULL) {
2476                 matcher_parser_start_parsing(f);
2477                 fclose(matcher_parserin);
2478         }
2479         else {
2480                 /* previous version compatibility */
2481
2482                 /* g_print("reading filtering\n"); */
2483                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2484                                      FILTERING_RC, NULL);
2485                 f = g_fopen(rcpath, "rb");
2486                 g_free(rcpath);
2487
2488                 if (f != NULL) {
2489                         matcher_parser_start_parsing(f);
2490                         fclose(matcher_parserin);
2491                 }
2492
2493                 /* g_print("reading scoring\n"); */
2494                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2495                                      SCORING_RC, NULL);
2496                 f = g_fopen(rcpath, "rb");
2497                 g_free(rcpath);
2498
2499                 if (f != NULL) {
2500                         matcher_parser_start_parsing(f);
2501                         fclose(matcher_parserin);
2502                 }
2503         }
2504 }