src/matcher.c

   1 #include <ctype.h>
   2 #include <string.h>
   3 #include <stdlib.h>
   4 #include <errno.h>
   5 #include "defs.h"
   6 #include "utils.h"
   7 #include "procheader.h"
   8 #include "matcher.h"
   9 #include "intl.h"
  10 #include "matcher_parser.h"
  11 #include "prefs.h"
  12
  13 struct _MatchParser {
  14         gint id;
  15         gchar * str;
  16 };
  17
  18 typedef struct _MatchParser MatchParser;
  19
  20 static MatchParser matchparser_tab[] = {
  21         /* msginfo flags */
  22         {MATCHCRITERIA_ALL, "all"},
  23         {MATCHCRITERIA_UNREAD, "unread"},
  24         {MATCHCRITERIA_NOT_UNREAD, "~unread"},
  25         {MATCHCRITERIA_NEW, "new"},
  26         {MATCHCRITERIA_NOT_NEW, "~new"},
  27         {MATCHCRITERIA_MARKED, "marked"},
  28         {MATCHCRITERIA_NOT_MARKED, "~marked"},
  29         {MATCHCRITERIA_DELETED, "deleted"},
  30         {MATCHCRITERIA_NOT_DELETED, "~deleted"},
  31         {MATCHCRITERIA_REPLIED, "replied"},
  32         {MATCHCRITERIA_NOT_REPLIED, "~replied"},
  33         {MATCHCRITERIA_FORWARDED, "forwarded"},
  34         {MATCHCRITERIA_NOT_FORWARDED, "~forwarded"},
  35
  36         /* msginfo headers */
  37         {MATCHCRITERIA_SUBJECT, "subject"},
  38         {MATCHCRITERIA_NOT_SUBJECT, "~subject"},
  39         {MATCHCRITERIA_FROM, "from"},
  40         {MATCHCRITERIA_NOT_FROM, "~from"},
  41         {MATCHCRITERIA_TO, "to"},
  42         {MATCHCRITERIA_NOT_TO, "~to"},
  43         {MATCHCRITERIA_CC, "cc"},
  44         {MATCHCRITERIA_NOT_CC, "~cc"},
  45         {MATCHCRITERIA_TO_OR_CC, "to_or_cc"},
  46         {MATCHCRITERIA_NOT_TO_AND_NOT_CC, "~to_or_cc"},
  47         {MATCHCRITERIA_AGE_GREATER, "age_greater"},
  48         {MATCHCRITERIA_AGE_LOWER, "age_lower"},
  49         {MATCHCRITERIA_NEWSGROUPS, "newsgroups"},
  50         {MATCHCRITERIA_NOT_NEWSGROUPS, "~newsgroups"},
  51         {MATCHCRITERIA_INREPLYTO, "inreplyto"},
  52         {MATCHCRITERIA_NOT_INREPLYTO, "~inreplyto"},
  53         {MATCHCRITERIA_REFERENCES, "references"},
  54         {MATCHCRITERIA_NOT_REFERENCES, "~references"},
  55         {MATCHCRITERIA_SCORE_GREATER, "score_greater"},
  56         {MATCHCRITERIA_SCORE_LOWER, "score_lower"},
  57         {MATCHCRITERIA_SCORE_EQUAL, "score_equal"},
  58
  59         {MATCHCRITERIA_SIZE_GREATER, "size_greater"},
  60         {MATCHCRITERIA_SIZE_SMALLER, "size_smaller"},
  61         {MATCHCRITERIA_SIZE_EQUAL,   "size_equal"},
  62
  63         /* content have to be read */
  64         {MATCHCRITERIA_HEADER, "header"},
  65         {MATCHCRITERIA_NOT_HEADER, "~header"},
  66         {MATCHCRITERIA_HEADERS_PART, "headers_part"},
  67         {MATCHCRITERIA_NOT_HEADERS_PART, "~headers_part"},
  68         {MATCHCRITERIA_MESSAGE, "message"},
  69         {MATCHCRITERIA_NOT_MESSAGE, "~message"},
  70         {MATCHCRITERIA_BODY_PART, "body_part"},
  71         {MATCHCRITERIA_NOT_BODY_PART, "~body_part"},
  72         {MATCHCRITERIA_EXECUTE, "execute"},
  73         {MATCHCRITERIA_NOT_EXECUTE, "~execute"},
  74
  75         /* match type */
  76         {MATCHTYPE_MATCHCASE, "matchcase"},
  77         {MATCHTYPE_MATCH, "match"},
  78         {MATCHTYPE_REGEXPCASE, "regexpcase"},
  79         {MATCHTYPE_REGEXP, "regexp"},
  80
  81         /* actions */
  82         {MATCHACTION_SCORE, "score"},
  83         {MATCHACTION_MOVE, "move"},
  84         {MATCHACTION_COPY, "copy"},
  85         {MATCHACTION_DELETE, "delete"},
  86         {MATCHACTION_MARK, "mark"},
  87         {MATCHACTION_UNMARK, "unmark"},
  88         {MATCHACTION_MARK_AS_READ, "mark_as_read"},
  89         {MATCHACTION_MARK_AS_UNREAD, "mark_as_unread"},
  90         {MATCHACTION_FORWARD, "forward"},
  91         {MATCHACTION_FORWARD_AS_ATTACHMENT, "forward_as_attachment"},
  92         {MATCHACTION_EXECUTE, "execute"},
  93         {MATCHACTION_COLOR, "color"},
  94         {MATCHACTION_BOUNCE, "bounce"},
  95         {MATCHACTION_DELETE_ON_SERVER, "delete_on_server"}
  96 };
  97
  98 /* get_matchparser_tab_str() - used by filtering.c to translate
  99  * actions to debug strings */
 100 gchar * get_matchparser_tab_str(gint id)
 101 {
 102         gint i;
 103
 104         for(i = 0 ; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)) ;
 105             i++) {
 106                 if (matchparser_tab[i].id == id)
 107                         return matchparser_tab[i].str;
 108         }
 109         return NULL;
 110 }
 111
 112 /* matcher_unescape_str() - assumes that unescaping frees up room
 113  * in the string, so it returns the unescaped string in the
 114  * source */
 115 gchar *matcher_unescape_str(gchar *str)
 116 {
 117         gchar *tmp = alloca(strlen(str) + 1);
 118         register gchar *src = tmp;
 119         register gchar *dst = str;
 120
 121         strcpy(tmp, str);
 122
 123         for ( ; *src; src++) {
 124                 if (*src != '\\')
 125                         *dst++ = *src;
 126                 else {
 127                         src++;
 128                         if (*src == '\\')
 129                                 *dst++ = '\\';                          /* insert backslash */
 130                         else if (*src == 'n')                           /* insert control characters */
 131                                 *dst++ = '\n';
 132                         else if (*src == 'r')
 133                                 *dst++ = '\r';
 134                         else if (*src == 't')
 135                                 *dst++ = '\t';
 136                         else if (*src == 'r')
 137                                 *dst++ = '\r';
 138                         else if (*src == 'b')
 139                                 *dst++ = '\b';
 140                         else if (*src == 'f')
 141                                 *dst++ = '\f';
 142                         else if (*src == '\'' || *src == '\"')          /* insert \' or \" */
 143                                 *dst++ = *src;
 144                         else {
 145                                 /* FIXME: should perhaps escape character... */
 146                                 src--;
 147                                 *dst++ = *src;
 148                         }
 149                 }
 150         }
 151         *dst = 0;
 152         return str;
 153 }
 154
 155 /* **************** data structure allocation **************** */
 156
 157 /* matcherprop_new() - allocates a structure for one condition
 158  */
 159 MatcherProp * matcherprop_new(gint criteria, gchar * header,
 160                               gint matchtype, gchar * expr,
 161                               int value)
 162 {
 163         MatcherProp * prop;
 164
 165         prop = g_new0(MatcherProp, 1);
 166         prop->criteria = criteria;
 167         if (header != NULL) {
 168                 prop->header       = g_strdup(header);
 169                 prop->unesc_header = matcher_unescape_str(g_strdup(header));
 170         }
 171         else {
 172                 prop->header       = NULL;
 173                 prop->unesc_header = NULL;
 174         }
 175         if (expr != NULL) {
 176                 prop->expr       = g_strdup(expr);
 177                 prop->unesc_expr = matcher_unescape_str(g_strdup(expr));
 178         }
 179         else {
 180                 prop->expr       = NULL;
 181                 prop->unesc_expr = NULL;
 182         }
 183         prop->matchtype = matchtype;
 184         prop->preg = NULL;
 185         prop->value = value;
 186         prop->error = 0;
 187
 188         return prop;
 189 }
 190
 191 /* matcherprop_free()
 192  */
 193 void matcherprop_free(MatcherProp * prop)
 194 {
 195         if (prop->expr)
 196                 g_free(prop->expr);
 197         if (prop->unesc_expr)
 198                 g_free(prop->unesc_expr);
 199         if (prop->header)
 200                 g_free(prop->header);
 201         if (prop->unesc_header)
 202                 g_free(prop->unesc_header);
 203         if (prop->preg != NULL) {
 204                 regfree(prop->preg);
 205                 g_free(prop->preg);
 206         }
 207         g_free(prop);
 208 }
 209
 210
 211 /* ************** match ******************************/
 212
 213
 214 /* matcherprop_string_match() - finds out if a string matches
 215  * with a criterium */
 216 static gboolean matcherprop_string_match(MatcherProp * prop, gchar * str)
 217 {
 218         gchar * str1;
 219         gchar * str2;
 220
 221         if (str == NULL)
 222                 return FALSE;
 223
 224         switch(prop->matchtype) {
 225         case MATCHTYPE_REGEXPCASE:
 226         case MATCHTYPE_REGEXP:
 227                 if (!prop->preg && (prop->error == 0)) {
 228                         prop->preg = g_new0(regex_t, 1);
 229                         /* if regexp then don't use the escaped string */
 230                         if (regcomp(prop->preg, prop->expr,
 231                                     REG_NOSUB | REG_EXTENDED
 232                                     | ((prop->matchtype == MATCHTYPE_REGEXPCASE)
 233                                     ? REG_ICASE : 0)) != 0) {
 234                                 prop->error = 1;
 235                                 g_free(prop->preg);
 236                         }
 237                 }
 238                 if (prop->preg == NULL)
 239                         return FALSE;
 240
 241                 if (regexec(prop->preg, str, 0, NULL, 0) == 0)
 242                         return TRUE;
 243                 else
 244                         return FALSE;
 245
 246         case MATCHTYPE_MATCH:
 247                 return (strstr(str, prop->unesc_expr) != NULL);
 248
 249         /* FIXME: put upper in unesc_str */
 250         case MATCHTYPE_MATCHCASE:
 251                 str2 = alloca(strlen(prop->unesc_expr) + 1);
 252                 strcpy(str2, prop->unesc_expr);
 253                 g_strup(str2);
 254                 str1 = alloca(strlen(str) + 1);
 255                 strcpy(str1, str);
 256                 g_strup(str1);
 257                 return (strstr(str1, str2) != NULL);
 258
 259         default:
 260                 return FALSE;
 261         }
 262 }
 263
 264 gboolean matcherprop_match_execute(MatcherProp * prop, MsgInfo * info)
 265 {
 266         gchar * file;
 267         gchar * cmd;
 268
 269         file = procmsg_get_message_file(info);
 270         if (file == NULL)
 271                 return FALSE;
 272
 273         cmd = matching_build_command(prop->unesc_expr, info);
 274         if (cmd == NULL)
 275                 return FALSE;
 276
 277         return (system(cmd) == 0);
 278 }
 279
 280 /* match a message and his headers, hlist can be NULL if you don't
 281    want to use headers */
 282
 283 gboolean matcherprop_match(MatcherProp * prop, MsgInfo * info)
 284 {
 285         time_t t;
 286
 287         switch(prop->criteria) {
 288         case MATCHCRITERIA_ALL:
 289                 return 1;
 290         case MATCHCRITERIA_UNREAD:
 291                 return MSG_IS_UNREAD(info->flags);
 292         case MATCHCRITERIA_NOT_UNREAD:
 293                 return !MSG_IS_UNREAD(info->flags);
 294         case MATCHCRITERIA_NEW:
 295                 return MSG_IS_NEW(info->flags);
 296         case MATCHCRITERIA_NOT_NEW:
 297                 return !MSG_IS_NEW(info->flags);
 298         case MATCHCRITERIA_MARKED:
 299                 return MSG_IS_MARKED(info->flags);
 300         case MATCHCRITERIA_NOT_MARKED:
 301                 return !MSG_IS_MARKED(info->flags);
 302         case MATCHCRITERIA_DELETED:
 303                 return MSG_IS_DELETED(info->flags);
 304         case MATCHCRITERIA_NOT_DELETED:
 305                 return !MSG_IS_DELETED(info->flags);
 306         case MATCHCRITERIA_REPLIED:
 307                 return MSG_IS_REPLIED(info->flags);
 308         case MATCHCRITERIA_NOT_REPLIED:
 309                 return !MSG_IS_REPLIED(info->flags);
 310         case MATCHCRITERIA_FORWARDED:
 311                 return MSG_IS_FORWARDED(info->flags);
 312         case MATCHCRITERIA_NOT_FORWARDED:
 313                 return !MSG_IS_FORWARDED(info->flags);
 314         case MATCHCRITERIA_SUBJECT:
 315                 return matcherprop_string_match(prop, info->subject);
 316         case MATCHCRITERIA_NOT_SUBJECT:
 317                 return !matcherprop_string_match(prop, info->subject);
 318         case MATCHCRITERIA_FROM:
 319                 return matcherprop_string_match(prop, info->from);
 320         case MATCHCRITERIA_NOT_FROM:
 321                 return !matcherprop_string_match(prop, info->from);
 322         case MATCHCRITERIA_TO:
 323                 return matcherprop_string_match(prop, info->to);
 324         case MATCHCRITERIA_NOT_TO:
 325                 return !matcherprop_string_match(prop, info->to);
 326         case MATCHCRITERIA_CC:
 327                 return matcherprop_string_match(prop, info->cc);
 328         case MATCHCRITERIA_NOT_CC:
 329                 return !matcherprop_string_match(prop, info->cc);
 330         case MATCHCRITERIA_TO_OR_CC:
 331                 return matcherprop_string_match(prop, info->to)
 332                         || matcherprop_string_match(prop, info->cc);
 333         case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
 334                 return !(matcherprop_string_match(prop, info->to)
 335                 || matcherprop_string_match(prop, info->cc));
 336         case MATCHCRITERIA_AGE_GREATER:
 337                 t = time(NULL);
 338                 return ((t - info->date_t) / (60 * 60 * 24)) >= prop->value;
 339         case MATCHCRITERIA_AGE_LOWER:
 340                 t = time(NULL);
 341                 return ((t - info->date_t) / (60 * 60 * 24)) <= prop->value;
 342         case MATCHCRITERIA_SCORE_GREATER:
 343                 return info->score >= prop->value;
 344         case MATCHCRITERIA_SCORE_LOWER:
 345                 return info->score <= prop->value;
 346         case MATCHCRITERIA_SCORE_EQUAL:
 347                 return info->score == prop->value;
 348         case MATCHCRITERIA_SIZE_GREATER:
 349                 /* FIXME: info->size is an off_t */
 350                 return info->size > (off_t) prop->value;
 351         case MATCHCRITERIA_SIZE_EQUAL:
 352                 /* FIXME: info->size is an off_t */
 353                 return info->size == (off_t) prop->value;
 354         case MATCHCRITERIA_SIZE_SMALLER:
 355                 /* FIXME: info->size is an off_t */
 356                 return info->size <  (off_t) prop->value;
 357         case MATCHCRITERIA_NEWSGROUPS:
 358                 return matcherprop_string_match(prop, info->newsgroups);
 359         case MATCHCRITERIA_NOT_NEWSGROUPS:
 360                 return !matcherprop_string_match(prop, info->newsgroups);
 361         case MATCHCRITERIA_INREPLYTO:
 362                 return matcherprop_string_match(prop, info->inreplyto);
 363         case MATCHCRITERIA_NOT_INREPLYTO:
 364                 return !matcherprop_string_match(prop, info->inreplyto);
 365         case MATCHCRITERIA_REFERENCES:
 366                 return matcherprop_string_match(prop, info->references);
 367         case MATCHCRITERIA_NOT_REFERENCES:
 368                 return !matcherprop_string_match(prop, info->references);
 369         case MATCHCRITERIA_EXECUTE:
 370                 return matcherprop_match_execute(prop, info);
 371         case MATCHCRITERIA_NOT_EXECUTE:
 372                 return !matcherprop_match_execute(prop, info);
 373         default:
 374                 return 0;
 375         }
 376 }
 377
 378 /* ********************* MatcherList *************************** */
 379
 380
 381 MatcherList * matcherlist_new(GSList * matchers, gboolean bool_and)
 382 {
 383         MatcherList * cond;
 384
 385         cond = g_new0(MatcherList, 1);
 386
 387         cond->matchers = matchers;
 388         cond->bool_and = bool_and;
 389
 390         return cond;
 391 }
 392
 393 void matcherlist_free(MatcherList * cond)
 394 {
 395         GSList * l;
 396
 397         for(l = cond->matchers ; l != NULL ; l = g_slist_next(l)) {
 398                 matcherprop_free((MatcherProp *) l->data);
 399         }
 400         g_free(cond);
 401 }
 402
 403 /*
 404   skip the headers
 405  */
 406
 407 static void matcherlist_skip_headers(FILE *fp)
 408 {
 409         gchar buf[BUFFSIZE];
 410
 411         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1) {
 412         }
 413 }
 414
 415 /*
 416   matcherprop_match_one_header
 417   returns TRUE if buf matchs the MatchersProp criteria
 418  */
 419
 420 static gboolean matcherprop_match_one_header(MatcherProp * matcher,
 421                                              gchar * buf)
 422 {
 423         gboolean result;
 424         Header *header;
 425
 426         switch(matcher->criteria) {
 427         case MATCHCRITERIA_HEADER:
 428         case MATCHCRITERIA_NOT_HEADER:
 429                 header = procheader_parse_header(buf);
 430                 if (!header)
 431                         return FALSE;
 432                 if (procheader_headername_equal(header->name,
 433                                                 matcher->header)) {
 434                         if (matcher->criteria == MATCHCRITERIA_HEADER)
 435                                 result = matcherprop_string_match(matcher, header->body);
 436                         else
 437                                 result = !matcherprop_string_match(matcher, header->body);
 438                         procheader_header_free(header);
 439                         return result;
 440                 }
 441                 else {
 442                         procheader_header_free(header);
 443                 }
 444                 break;
 445         case MATCHCRITERIA_HEADERS_PART:
 446         case MATCHCRITERIA_MESSAGE:
 447                 return matcherprop_string_match(matcher, buf);
 448         case MATCHCRITERIA_NOT_MESSAGE:
 449         case MATCHCRITERIA_NOT_HEADERS_PART:
 450                 return !matcherprop_string_match(matcher, buf);
 451         }
 452         return FALSE;
 453 }
 454
 455 /*
 456   matcherprop_criteria_header
 457   returns TRUE if the headers must be matched
 458  */
 459
 460 static gboolean matcherprop_criteria_headers(MatcherProp * matcher)
 461 {
 462         switch(matcher->criteria) {
 463         case MATCHCRITERIA_HEADER:
 464         case MATCHCRITERIA_NOT_HEADER:
 465         case MATCHCRITERIA_HEADERS_PART:
 466         case MATCHCRITERIA_NOT_HEADERS_PART:
 467                 return TRUE;
 468         default:
 469                 return FALSE;
 470         }
 471 }
 472
 473 static gboolean matcherprop_criteria_message(MatcherProp * matcher)
 474 {
 475         switch(matcher->criteria) {
 476         case MATCHCRITERIA_MESSAGE:
 477         case MATCHCRITERIA_NOT_MESSAGE:
 478                 return TRUE;
 479         default:
 480                 return FALSE;
 481         }
 482 }
 483
 484 /*
 485   matcherlist_match_one_header
 486   returns TRUE if match should stop
 487  */
 488
 489 static gboolean matcherlist_match_one_header(MatcherList * matchers,
 490                                          gchar * buf)
 491 {
 492         GSList * l;
 493
 494         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 495                 MatcherProp * matcher = (MatcherProp *) l->data;
 496
 497                 if (matcherprop_criteria_headers(matcher) ||
 498                     matcherprop_criteria_message(matcher)) {
 499                         if (matcherprop_match_one_header(matcher, buf)) {
 500                                 matcher->result = TRUE;
 501                         }
 502                 }
 503
 504                 if (matcherprop_criteria_headers(matcher)) {
 505                         if (matcher->result) {
 506                                 if (!matchers->bool_and)
 507                                         return TRUE;
 508                         }
 509                 }
 510         }
 511
 512         return FALSE;
 513 }
 514
 515 /*
 516   matcherlist_match_headers
 517   returns TRUE if one of the headers matchs the MatcherList criteria
 518  */
 519
 520 static gboolean matcherlist_match_headers(MatcherList * matchers, FILE * fp)
 521 {
 522         gchar buf[BUFFSIZE];
 523
 524         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1)
 525                 if (matcherlist_match_one_header(matchers, buf))
 526                         return TRUE;
 527
 528         return FALSE;
 529 }
 530
 531 /*
 532   matcherprop_criteria_body
 533   returns TRUE if the body must be matched
 534  */
 535
 536 static gboolean matcherprop_criteria_body(MatcherProp * matcher)
 537 {
 538         switch(matcher->criteria) {
 539         case MATCHCRITERIA_BODY_PART:
 540         case MATCHCRITERIA_NOT_BODY_PART:
 541                 return TRUE;
 542         default:
 543                 return FALSE;
 544         }
 545 }
 546
 547 /*
 548   matcherprop_match_line
 549   returns TRUE if the string matchs the MatcherProp criteria
 550  */
 551
 552 static gboolean matcherprop_match_line(MatcherProp * matcher, gchar * line)
 553 {
 554         switch(matcher->criteria) {
 555         case MATCHCRITERIA_BODY_PART:
 556         case MATCHCRITERIA_MESSAGE:
 557                 return matcherprop_string_match(matcher, line);
 558         case MATCHCRITERIA_NOT_BODY_PART:
 559         case MATCHCRITERIA_NOT_MESSAGE:
 560                 return !matcherprop_string_match(matcher, line);
 561         }
 562         return FALSE;
 563 }
 564
 565 /*
 566   matcherlist_match_line
 567   returns TRUE if the string matchs the MatcherList criteria
 568  */
 569
 570 static gboolean matcherlist_match_line(MatcherList * matchers, gchar * line)
 571 {
 572         GSList * l;
 573
 574         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 575                 MatcherProp * matcher = (MatcherProp *) l->data;
 576
 577                 if (matcherprop_criteria_body(matcher) ||
 578                     matcherprop_criteria_message(matcher)) {
 579                         if (matcherprop_match_line(matcher, line)) {
 580                                 matcher->result = TRUE;
 581                         }
 582                 }
 583
 584                 if (matcher->result) {
 585                         if (!matchers->bool_and)
 586                                 return TRUE;
 587                 }
 588         }
 589         return FALSE;
 590 }
 591
 592 /*
 593   matcherlist_match_body
 594   returns TRUE if one line of the body matchs the MatcherList criteria
 595  */
 596
 597 static gboolean matcherlist_match_body(MatcherList * matchers, FILE * fp)
 598 {
 599         gchar buf[BUFFSIZE];
 600
 601         while (fgets(buf, sizeof(buf), fp) != NULL)
 602                 if (matcherlist_match_line(matchers, buf))
 603                         return TRUE;
 604
 605         return FALSE;
 606 }
 607
 608 gboolean matcherlist_match_file(MatcherList * matchers, MsgInfo * info,
 609                                 gboolean result)
 610 {
 611         gboolean read_headers;
 612         gboolean read_body;
 613         GSList * l;
 614         FILE * fp;
 615         gchar * file;
 616
 617         /* file need to be read ? */
 618
 619         read_headers = FALSE;
 620         read_body = FALSE;
 621         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 622                 MatcherProp * matcher = (MatcherProp *) l->data;
 623
 624                 if (matcherprop_criteria_headers(matcher))
 625                         read_headers = TRUE;
 626                 if (matcherprop_criteria_body(matcher))
 627                         read_body = TRUE;
 628                 if (matcherprop_criteria_message(matcher)) {
 629                         read_headers = TRUE;
 630                         read_body = TRUE;
 631                 }
 632                 matcher->result = FALSE;
 633         }
 634
 635         if (!read_headers && !read_body)
 636                 return result;
 637
 638         file = procmsg_get_message_file(info);
 639         if (file == NULL)
 640                 return FALSE;
 641
 642         if ((fp = fopen(file, "rb")) == NULL) {
 643                 FILE_OP_ERROR(file, "fopen");
 644                 g_free(file);
 645                 return result;
 646         }
 647
 648         /* read the headers */
 649
 650         if (read_headers) {
 651                 if (matcherlist_match_headers(matchers, fp))
 652                         read_body = FALSE;
 653         }
 654         else {
 655                 matcherlist_skip_headers(fp);
 656         }
 657
 658         /* read the body */
 659         if (read_body) {
 660                 matcherlist_match_body(matchers, fp);
 661         }
 662
 663         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 664                 MatcherProp * matcher = (MatcherProp *) l->data;
 665
 666                 if (matcherprop_criteria_headers(matcher) ||
 667                     matcherprop_criteria_body(matcher)    ||
 668                     matcherprop_criteria_message(matcher)) {
 669                         if (matcher->result) {
 670                                 if (!matchers->bool_and) {
 671                                         result = TRUE;
 672                                         break;
 673                                 }
 674                         }
 675                         else {
 676                                 if (matchers->bool_and) {
 677                                         result = FALSE;
 678                                         break;
 679                                 }
 680                         }
 681                 }
 682         }
 683
 684         g_free(file);
 685
 686         fclose(fp);
 687
 688         return result;
 689 }
 690
 691 /* test a list of condition */
 692
 693 gboolean matcherlist_match(MatcherList * matchers, MsgInfo * info)
 694 {
 695         GSList * l;
 696         gboolean result;
 697
 698         if (matchers->bool_and)
 699                 result = TRUE;
 700         else
 701                 result = FALSE;
 702
 703         /* test the cached elements */
 704
 705         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 706                 MatcherProp * matcher = (MatcherProp *) l->data;
 707
 708                 switch(matcher->criteria) {
 709                 case MATCHCRITERIA_ALL:
 710                 case MATCHCRITERIA_UNREAD:
 711                 case MATCHCRITERIA_NOT_UNREAD:
 712                 case MATCHCRITERIA_NEW:
 713                 case MATCHCRITERIA_NOT_NEW:
 714                 case MATCHCRITERIA_MARKED:
 715                 case MATCHCRITERIA_NOT_MARKED:
 716                 case MATCHCRITERIA_DELETED:
 717                 case MATCHCRITERIA_NOT_DELETED:
 718                 case MATCHCRITERIA_REPLIED:
 719                 case MATCHCRITERIA_NOT_REPLIED:
 720                 case MATCHCRITERIA_FORWARDED:
 721                 case MATCHCRITERIA_NOT_FORWARDED:
 722                 case MATCHCRITERIA_SUBJECT:
 723                 case MATCHCRITERIA_NOT_SUBJECT:
 724                 case MATCHCRITERIA_FROM:
 725                 case MATCHCRITERIA_NOT_FROM:
 726                 case MATCHCRITERIA_TO:
 727                 case MATCHCRITERIA_NOT_TO:
 728                 case MATCHCRITERIA_CC:
 729                 case MATCHCRITERIA_NOT_CC:
 730                 case MATCHCRITERIA_TO_OR_CC:
 731                 case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
 732                 case MATCHCRITERIA_AGE_GREATER:
 733                 case MATCHCRITERIA_AGE_LOWER:
 734                 case MATCHCRITERIA_NEWSGROUPS:
 735                 case MATCHCRITERIA_NOT_NEWSGROUPS:
 736                 case MATCHCRITERIA_INREPLYTO:
 737                 case MATCHCRITERIA_NOT_INREPLYTO:
 738                 case MATCHCRITERIA_REFERENCES:
 739                 case MATCHCRITERIA_NOT_REFERENCES:
 740                 case MATCHCRITERIA_SCORE_GREATER:
 741                 case MATCHCRITERIA_SCORE_LOWER:
 742                 case MATCHCRITERIA_SCORE_EQUAL:
 743                 case MATCHCRITERIA_SIZE_GREATER:
 744                 case MATCHCRITERIA_SIZE_SMALLER:
 745                 case MATCHCRITERIA_SIZE_EQUAL:
 746                 case MATCHCRITERIA_EXECUTE:
 747                 case MATCHCRITERIA_NOT_EXECUTE:
 748                         if (matcherprop_match(matcher, info)) {
 749                                 if (!matchers->bool_and) {
 750                                         return TRUE;
 751                                 }
 752                         }
 753                         else {
 754                                 if (matchers->bool_and) {
 755                                         return FALSE;
 756                                 }
 757                         }
 758                 }
 759         }
 760
 761         /* test the condition on the file */
 762
 763         if (matcherlist_match_file(matchers, info, result)) {
 764                 if (!matchers->bool_and)
 765                         return TRUE;
 766         }
 767         else {
 768                 if (matchers->bool_and)
 769                         return FALSE;
 770         }
 771
 772         return result;
 773 }
 774
 775
 776 gchar * matcherprop_to_string(MatcherProp * matcher)
 777 {
 778         gchar * matcher_str = NULL;
 779         gchar * criteria_str;
 780         gchar * matchtype_str;
 781         int i;
 782         gchar * p;
 783         gint count;
 784         gchar * expr_str;
 785         gchar * out;
 786
 787         criteria_str = NULL;
 788         for(i = 0 ; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)) ;
 789             i++) {
 790                 if (matchparser_tab[i].id == matcher->criteria)
 791                         criteria_str = matchparser_tab[i].str;
 792         }
 793         if (criteria_str == NULL)
 794                 return NULL;
 795
 796         switch(matcher->criteria) {
 797         case MATCHCRITERIA_AGE_GREATER:
 798         case MATCHCRITERIA_AGE_LOWER:
 799         case MATCHCRITERIA_SCORE_GREATER:
 800         case MATCHCRITERIA_SCORE_LOWER:
 801         case MATCHCRITERIA_SCORE_EQUAL:
 802         case MATCHCRITERIA_SIZE_GREATER:
 803         case MATCHCRITERIA_SIZE_SMALLER:
 804         case MATCHCRITERIA_SIZE_EQUAL:
 805                 return g_strdup_printf("%s %i", criteria_str, matcher->value);
 806         case MATCHCRITERIA_ALL:
 807         case MATCHCRITERIA_UNREAD:
 808         case MATCHCRITERIA_NOT_UNREAD:
 809         case MATCHCRITERIA_NEW:
 810         case MATCHCRITERIA_NOT_NEW:
 811         case MATCHCRITERIA_MARKED:
 812         case MATCHCRITERIA_NOT_MARKED:
 813         case MATCHCRITERIA_DELETED:
 814         case MATCHCRITERIA_NOT_DELETED:
 815         case MATCHCRITERIA_REPLIED:
 816         case MATCHCRITERIA_NOT_REPLIED:
 817         case MATCHCRITERIA_FORWARDED:
 818         case MATCHCRITERIA_NOT_FORWARDED:
 819                 return g_strdup(criteria_str);
 820         }
 821
 822         matchtype_str = NULL;
 823         for(i = 0 ; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)) ;
 824             i++) {
 825                 if (matchparser_tab[i].id == matcher->matchtype)
 826                         matchtype_str = matchparser_tab[i].str;
 827         }
 828
 829         if (matchtype_str == NULL)
 830                 return NULL;
 831
 832         switch (matcher->matchtype) {
 833         case MATCHTYPE_MATCH:
 834         case MATCHTYPE_MATCHCASE:
 835         case MATCHTYPE_REGEXP:
 836         case MATCHTYPE_REGEXPCASE:
 837                 if (matcher->header)
 838                         matcher_str =
 839                                 g_strdup_printf("%s \"%s\" %s \"%s\"",
 840                                            criteria_str, matcher->header,
 841                                            matchtype_str, matcher->expr);
 842                 else
 843                         matcher_str =
 844                                 g_strdup_printf("%s %s \"%s\"", criteria_str,
 845                                                 matchtype_str, matcher->expr);
 846                 break;
 847         }
 848
 849         return matcher_str;
 850 }
 851
 852 gchar * matcherlist_to_string(MatcherList * matchers)
 853 {
 854         gint count;
 855         gchar ** vstr;
 856         GSList * l;
 857         gchar ** cur_str;
 858         gchar * result;
 859
 860         count = g_slist_length(matchers->matchers);
 861         vstr = g_new(gchar *, count + 1);
 862
 863         for (l = matchers->matchers, cur_str = vstr ; l != NULL ;
 864              l = g_slist_next(l), cur_str ++) {
 865                 *cur_str = matcherprop_to_string((MatcherProp *) l->data);
 866                 if (*cur_str == NULL)
 867                         break;
 868         }
 869         *cur_str = NULL;
 870
 871         if (matchers->bool_and)
 872                 result = g_strjoinv(" & ", vstr);
 873         else
 874                 result = g_strjoinv(" | ", vstr);
 875
 876         for(cur_str = vstr ; *cur_str != NULL ; cur_str ++)
 877                 g_free(*cur_str);
 878         g_free(vstr);
 879
 880         return result;
 881 }
 882
 883 /* matching_build_command() - preferably cmd should be unescaped */
 884 gchar * matching_build_command(gchar * cmd, MsgInfo * info)
 885 {
 886         gchar * s = cmd;
 887         gchar * filename = NULL;
 888         gchar * processed_cmd;
 889         gchar * p;
 890         gint size;
 891
 892         size = strlen(cmd) + 1;
 893         while (*s != '\0') {
 894                 if (*s == '%') {
 895                         s++;
 896                         switch (*s) {
 897                         case '%':
 898                                 size -= 1;
 899                                 break;
 900                         case 's': /* subject */
 901                                 size += strlen(info->subject) - 2;
 902                                 break;
 903                         case 'f': /* from */
 904                                 size += strlen(info->from) - 2;
 905                                 break;
 906                         case 't': /* to */
 907                                 size += strlen(info->to) - 2;
 908                                 break;
 909                         case 'c': /* cc */
 910                                 size += strlen(info->cc) - 2;
 911                                 break;
 912                         case 'd': /* date */
 913                                 size += strlen(info->date) - 2;
 914                                 break;
 915                         case 'i': /* message-id */
 916                                 size += strlen(info->msgid) - 2;
 917                                 break;
 918                         case 'n': /* newsgroups */
 919                                 size += strlen(info->newsgroups) - 2;
 920                                 break;
 921                         case 'r': /* references */
 922                                 size += strlen(info->references) - 2;
 923                                 break;
 924                         case 'F': /* file */
 925                                 filename = folder_item_fetch_msg(info->folder,
 926                                                                  info->msgnum);
 927
 928                                 if (filename == NULL) {
 929                                         g_warning(_("filename is not set"));
 930                                         return NULL;
 931                                 }
 932                                 else
 933                                         size += strlen(filename) - 2;
 934                                 break;
 935                         }
 936                         s++;
 937                 }
 938                 else s++;
 939         }
 940
 941
 942         processed_cmd = g_new0(gchar, size);
 943         s = cmd;
 944         p = processed_cmd;
 945
 946         while (*s != '\0') {
 947                 if (*s == '%') {
 948                         s++;
 949                         switch (*s) {
 950                         case '%':
 951                                 *p = '%';
 952                                 p++;
 953                                 break;
 954                         case 's': /* subject */
 955                                 if (info->subject != NULL)
 956                                         strcpy(p, info->subject);
 957                                 else
 958                                         strcpy(p, _("(none)"));
 959                                 p += strlen(p);
 960                                 break;
 961                         case 'f': /* from */
 962                                 if (info->from != NULL)
 963                                         strcpy(p, info->from);
 964                                 else
 965                                         strcpy(p, _("(none)"));
 966                                 p += strlen(p);
 967                                 break;
 968                         case 't': /* to */
 969                                 if (info->to != NULL)
 970                                         strcpy(p, info->to);
 971                                 else
 972                                         strcpy(p, _("(none)"));
 973                                 p += strlen(p);
 974                                 break;
 975                         case 'c': /* cc */
 976                                 if (info->cc != NULL)
 977                                         strcpy(p, info->cc);
 978                                 else
 979                                         strcpy(p, _("(none)"));
 980                                 p += strlen(p);
 981                                 break;
 982                         case 'd': /* date */
 983                                 if (info->date != NULL)
 984                                         strcpy(p, info->date);
 985                                 else
 986                                         strcpy(p, _("(none)"));
 987                                 p += strlen(p);
 988                                 break;
 989                         case 'i': /* message-id */
 990                                 if (info->msgid != NULL)
 991                                         strcpy(p, info->msgid);
 992                                 else
 993                                         strcpy(p, _("(none)"));
 994                                 p += strlen(p);
 995                                 break;
 996                         case 'n': /* newsgroups */
 997                                 if (info->newsgroups != NULL)
 998                                         strcpy(p, info->newsgroups);
 999                                 else
1000                                         strcpy(p, _("(none)"));
1001                                 p += strlen(p);
1002                                 break;
1003                         case 'r': /* references */
1004                                 if (info->references != NULL)
1005                                         strcpy(p, info->references);
1006                                 else
1007                                         strcpy(p, _("(none)"));
1008                                 p += strlen(p);
1009                                 break;
1010                         case 'F': /* file */
1011                                 strcpy(p, filename);
1012                                 p += strlen(p);
1013                                 break;
1014                         default:
1015                                 *p = '%';
1016                                 p++;
1017                                 *p = *s;
1018                                 p++;
1019                                 break;
1020                         }
1021                         s++;
1022                 }
1023                 else {
1024                         *p = *s;
1025                         p++;
1026                         s++;
1027                 }
1028         }
1029
1030         debug_print("*** exec string \"%s\"\n", processed_cmd);
1031         return processed_cmd;
1032 }
1033
1034 /* ************************************************************ */
1035
1036 static void prefs_scoring_write(FILE * fp, GSList * prefs_scoring)
1037 {
1038         GSList * cur;
1039
1040         for (cur = prefs_scoring; cur != NULL; cur = cur->next) {
1041                 gchar *scoring_str;
1042                 ScoringProp * prop;
1043
1044                 prop = (ScoringProp *) cur->data;
1045                 scoring_str = scoringprop_to_string(prop);
1046                 if (fputs(scoring_str, fp) == EOF ||
1047                     fputc('\n', fp) == EOF) {
1048                         FILE_OP_ERROR("scoring config", "fputs || fputc");
1049                         g_free(scoring_str);
1050                         return;
1051                 }
1052                 g_free(scoring_str);
1053         }
1054 }
1055
1056 static void prefs_filtering_write(FILE * fp, GSList * prefs_scoring)
1057 {
1058         GSList * cur;
1059
1060         for (cur = prefs_scoring; cur != NULL; cur = cur->next) {
1061                 gchar *filtering_str;
1062                 FilteringProp * prop;
1063
1064                 if (NULL == (prop = (FilteringProp *) cur->data))
1065                         continue;
1066
1067                 if (NULL == (filtering_str = filteringprop_to_string(prop)))
1068                         continue;
1069
1070                 if (fputs(filtering_str, fp) == EOF ||
1071                     fputc('\n', fp) == EOF) {
1072                         FILE_OP_ERROR("filtering config", "fputs || fputc");
1073                         g_free(filtering_str);
1074                         return;
1075                 }
1076                 g_free(filtering_str);
1077         }
1078 }
1079
1080 static gboolean prefs_matcher_write_func(GNode *node, gpointer data)
1081 {
1082         FolderItem *item;
1083         FILE * fp = data;
1084         gchar * id;
1085         GSList * prefs_scoring;
1086         GSList * prefs_filtering;
1087
1088         if (node != NULL) {
1089                 item = node->data;
1090                 /* prevent from the warning */
1091                 if (item->path == NULL)
1092                         return FALSE;
1093                 id = folder_item_get_identifier(item);
1094                 if (id == NULL)
1095                         return FALSE;
1096                 prefs_scoring = item->prefs->scoring;
1097                 prefs_filtering = item->prefs->processing;
1098         }
1099         else {
1100                 item = NULL;
1101                 id = g_strdup("global"); /* because it is g_freed */
1102                 prefs_scoring = global_scoring;
1103                 prefs_filtering = global_processing;
1104         }
1105
1106         if (prefs_filtering != NULL || prefs_scoring != NULL) {
1107                 fprintf(fp, "[%s]\n", id);
1108
1109                 prefs_filtering_write(fp, prefs_filtering);
1110                 prefs_scoring_write(fp, prefs_scoring);
1111
1112                 fputc('\n', fp);
1113         }
1114
1115         g_free(id);
1116
1117         return FALSE;
1118 }
1119
1120 static void prefs_matcher_save(FILE * fp)
1121 {
1122         GList * cur;
1123
1124         for (cur = folder_get_list() ; cur != NULL ; cur = g_list_next(cur)) {
1125                 Folder *folder;
1126
1127                 folder = (Folder *) cur->data;
1128                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1129                                 prefs_matcher_write_func, fp);
1130         }
1131         prefs_matcher_write_func(NULL, fp);
1132 }
1133
1134
1135 void prefs_matcher_write_config(void)
1136 {
1137         gchar *rcpath;
1138         PrefFile *pfile;
1139         GSList *cur;
1140         ScoringProp * prop;
1141
1142         debug_print(_("Writing matcher configuration...\n"));
1143
1144         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1145                              MATCHER_RC, NULL);
1146
1147         if ((pfile = prefs_write_open(rcpath)) == NULL) {
1148                 g_warning(_("failed to write configuration to file\n"));
1149                 g_free(rcpath);
1150                 return;
1151         }
1152
1153
1154         prefs_matcher_save(pfile->fp);
1155
1156         g_free(rcpath);
1157
1158         if (prefs_write_close(pfile) < 0) {
1159                 g_warning(_("failed to write configuration to file\n"));
1160                 return;
1161         }
1162 }
1163
1164 /* ******************************************************************* */
1165
1166 void prefs_matcher_read_config(void)
1167 {
1168         gchar * rcpath;
1169         FILE * f;
1170
1171         prefs_scoring_clear();
1172         prefs_filtering_clear();
1173
1174         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, MATCHER_RC, NULL);
1175         f = fopen(rcpath, "rb");
1176         g_free(rcpath);
1177
1178         if (f != NULL)
1179                 matcher_parser_start_parsing(f);
1180         else {
1181                 /* previous version compatibily */
1182
1183                 /* printf("reading filtering\n"); */
1184                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1185                                      FILTERING_RC, NULL);
1186                 f = fopen(rcpath, "rb");
1187                 g_free(rcpath);
1188
1189                 if (f != NULL) {
1190                         matcher_parser_start_parsing(f);
1191                         fclose(matcher_parserin);
1192                 }
1193
1194                 /* printf("reading scoring\n"); */
1195                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1196                                      SCORING_RC, NULL);
1197                 f = fopen(rcpath, "rb");
1198                 g_free(rcpath);
1199
1200                 if (f != NULL) {
1201                         matcher_parser_start_parsing(f);
1202                         fclose(matcher_parserin);
1203                 }
1204         }
1205 }