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_REDIRECT, "redirect"},
  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_escape_str() - escapes a string returns newly allocated escaped string */
 113 gchar *matcher_escape_str(const gchar *str)
 114 {
 115         register const gchar *walk;
 116         register int escape;
 117         gchar *res;
 118         register char *reswalk;
 119
 120         if (str == NULL)
 121                 return NULL;
 122
 123         for (escape = 0, walk = str; *walk; walk++)
 124                 if (*walk == '\'' || *walk == '\"')
 125                         escape++;
 126
 127         if (!escape)
 128                 return g_strdup(str);
 129
 130         reswalk = res = g_new0(gchar, (walk - str) + escape + 1);
 131         for (walk = str; *walk; walk++, reswalk++) {
 132                 if (*walk == '\'' || *walk == '\"')
 133                         *reswalk++ = '\\';
 134                 *reswalk = *walk;
 135         }
 136
 137         *reswalk = 0;
 138         return res;
 139 }
 140
 141 /* matcher_unescape_str() - assumes that unescaping frees up room
 142  * in the string, so it returns the unescaped string in the
 143  * source */
 144 gchar *matcher_unescape_str(gchar *str)
 145 {
 146         gchar *tmp = alloca(strlen(str) + 1);
 147         register gchar *src = tmp;
 148         register gchar *dst = str;
 149
 150         strcpy(tmp, str);
 151
 152         for ( ; *src; src++) {
 153                 if (*src != '\\')
 154                         *dst++ = *src;
 155                 else {
 156                         src++;
 157                         if (*src == '\\')
 158                                 *dst++ = '\\';                          /* insert backslash */
 159                         else if (*src == 'n')                           /* insert control characters */
 160                                 *dst++ = '\n';
 161                         else if (*src == 'r')
 162                                 *dst++ = '\r';
 163                         else if (*src == 't')
 164                                 *dst++ = '\t';
 165                         else if (*src == 'r')
 166                                 *dst++ = '\r';
 167                         else if (*src == 'b')
 168                                 *dst++ = '\b';
 169                         else if (*src == 'f')
 170                                 *dst++ = '\f';
 171                         else if (*src == '\'' || *src == '\"')          /* insert \' or \" */
 172                                 *dst++ = *src;
 173                         else {
 174                                 /* FIXME: should perhaps escape character... */
 175                                 src--;
 176                                 *dst++ = *src;
 177                         }
 178                 }
 179         }
 180         *dst = 0;
 181         return str;
 182 }
 183
 184 /* **************** data structure allocation **************** */
 185
 186 /* matcherprop_new() - allocates a structure for one condition
 187  */
 188 MatcherProp * matcherprop_new(gint criteria, gchar * header,
 189                               gint matchtype, gchar * expr,
 190                               int value)
 191 {
 192         MatcherProp * prop;
 193
 194         prop = g_new0(MatcherProp, 1);
 195         prop->criteria = criteria;
 196         if (header != NULL) {
 197                 prop->header       = g_strdup(header);
 198                 prop->unesc_header = matcher_unescape_str(g_strdup(header));
 199         }
 200         else {
 201                 prop->header       = NULL;
 202                 prop->unesc_header = NULL;
 203         }
 204         if (expr != NULL) {
 205                 prop->expr       = g_strdup(expr);
 206                 prop->unesc_expr = matcher_unescape_str(g_strdup(expr));
 207         }
 208         else {
 209                 prop->expr       = NULL;
 210                 prop->unesc_expr = NULL;
 211         }
 212         prop->matchtype = matchtype;
 213         prop->preg = NULL;
 214         prop->value = value;
 215         prop->error = 0;
 216
 217         return prop;
 218 }
 219
 220 /* matcherprop_free()
 221  */
 222 void matcherprop_free(MatcherProp * prop)
 223 {
 224         if (prop->expr)
 225                 g_free(prop->expr);
 226         if (prop->unesc_expr)
 227                 g_free(prop->unesc_expr);
 228         if (prop->header)
 229                 g_free(prop->header);
 230         if (prop->unesc_header)
 231                 g_free(prop->unesc_header);
 232         if (prop->preg != NULL) {
 233                 regfree(prop->preg);
 234                 g_free(prop->preg);
 235         }
 236         g_free(prop);
 237 }
 238
 239
 240 /* ************** match ******************************/
 241
 242
 243 /* matcherprop_string_match() - finds out if a string matches
 244  * with a criterium */
 245 static gboolean matcherprop_string_match(MatcherProp * prop, gchar * str)
 246 {
 247         gchar * str1;
 248         gchar * str2;
 249
 250         if (str == NULL)
 251                 return FALSE;
 252
 253         switch(prop->matchtype) {
 254         case MATCHTYPE_REGEXPCASE:
 255         case MATCHTYPE_REGEXP:
 256                 if (!prop->preg && (prop->error == 0)) {
 257                         prop->preg = g_new0(regex_t, 1);
 258                         /* if regexp then don't use the escaped string */
 259                         if (regcomp(prop->preg, prop->expr,
 260                                     REG_NOSUB | REG_EXTENDED
 261                                     | ((prop->matchtype == MATCHTYPE_REGEXPCASE)
 262                                     ? REG_ICASE : 0)) != 0) {
 263                                 prop->error = 1;
 264                                 g_free(prop->preg);
 265                                 prop->preg = NULL;
 266                         }
 267                 }
 268                 if (prop->preg == NULL)
 269                         return FALSE;
 270
 271                 if (regexec(prop->preg, str, 0, NULL, 0) == 0)
 272                         return TRUE;
 273                 else
 274                         return FALSE;
 275
 276         case MATCHTYPE_MATCH:
 277                 return (strstr(str, prop->unesc_expr) != NULL);
 278
 279         /* FIXME: put upper in unesc_str */
 280         case MATCHTYPE_MATCHCASE:
 281                 str2 = alloca(strlen(prop->unesc_expr) + 1);
 282                 strcpy(str2, prop->unesc_expr);
 283                 g_strup(str2);
 284                 str1 = alloca(strlen(str) + 1);
 285                 strcpy(str1, str);
 286                 g_strup(str1);
 287                 return (strstr(str1, str2) != NULL);
 288
 289         default:
 290                 return FALSE;
 291         }
 292 }
 293
 294 gboolean matcherprop_match_execute(MatcherProp * prop, MsgInfo * info)
 295 {
 296         gchar * file;
 297         gchar * cmd;
 298         gint retval;
 299
 300         file = procmsg_get_message_file(info);
 301         if (file == NULL)
 302                 return FALSE;
 303
 304         cmd = matching_build_command(prop->unesc_expr, info);
 305         if (cmd == NULL)
 306                 return FALSE;
 307
 308         retval = system(cmd);
 309         debug_print(_("Command exit code: %d\n"), retval);
 310
 311         return (retval == 0);
 312 }
 313
 314 /* match a message and his headers, hlist can be NULL if you don't
 315    want to use headers */
 316
 317 gboolean matcherprop_match(MatcherProp * prop, MsgInfo * info)
 318 {
 319         time_t t;
 320
 321         switch(prop->criteria) {
 322         case MATCHCRITERIA_ALL:
 323                 return 1;
 324         case MATCHCRITERIA_UNREAD:
 325                 return MSG_IS_UNREAD(info->flags);
 326         case MATCHCRITERIA_NOT_UNREAD:
 327                 return !MSG_IS_UNREAD(info->flags);
 328         case MATCHCRITERIA_NEW:
 329                 return MSG_IS_NEW(info->flags);
 330         case MATCHCRITERIA_NOT_NEW:
 331                 return !MSG_IS_NEW(info->flags);
 332         case MATCHCRITERIA_MARKED:
 333                 return MSG_IS_MARKED(info->flags);
 334         case MATCHCRITERIA_NOT_MARKED:
 335                 return !MSG_IS_MARKED(info->flags);
 336         case MATCHCRITERIA_DELETED:
 337                 return MSG_IS_DELETED(info->flags);
 338         case MATCHCRITERIA_NOT_DELETED:
 339                 return !MSG_IS_DELETED(info->flags);
 340         case MATCHCRITERIA_REPLIED:
 341                 return MSG_IS_REPLIED(info->flags);
 342         case MATCHCRITERIA_NOT_REPLIED:
 343                 return !MSG_IS_REPLIED(info->flags);
 344         case MATCHCRITERIA_FORWARDED:
 345                 return MSG_IS_FORWARDED(info->flags);
 346         case MATCHCRITERIA_NOT_FORWARDED:
 347                 return !MSG_IS_FORWARDED(info->flags);
 348         case MATCHCRITERIA_SUBJECT:
 349                 return matcherprop_string_match(prop, info->subject);
 350         case MATCHCRITERIA_NOT_SUBJECT:
 351                 return !matcherprop_string_match(prop, info->subject);
 352         case MATCHCRITERIA_FROM:
 353                 return matcherprop_string_match(prop, info->from);
 354         case MATCHCRITERIA_NOT_FROM:
 355                 return !matcherprop_string_match(prop, info->from);
 356         case MATCHCRITERIA_TO:
 357                 return matcherprop_string_match(prop, info->to);
 358         case MATCHCRITERIA_NOT_TO:
 359                 return !matcherprop_string_match(prop, info->to);
 360         case MATCHCRITERIA_CC:
 361                 return matcherprop_string_match(prop, info->cc);
 362         case MATCHCRITERIA_NOT_CC:
 363                 return !matcherprop_string_match(prop, info->cc);
 364         case MATCHCRITERIA_TO_OR_CC:
 365                 return matcherprop_string_match(prop, info->to)
 366                         || matcherprop_string_match(prop, info->cc);
 367         case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
 368                 return !(matcherprop_string_match(prop, info->to)
 369                 || matcherprop_string_match(prop, info->cc));
 370         case MATCHCRITERIA_AGE_GREATER:
 371                 t = time(NULL);
 372                 return ((t - info->date_t) / (60 * 60 * 24)) >= prop->value;
 373         case MATCHCRITERIA_AGE_LOWER:
 374                 t = time(NULL);
 375                 return ((t - info->date_t) / (60 * 60 * 24)) <= prop->value;
 376         case MATCHCRITERIA_SCORE_GREATER:
 377                 return info->score >= prop->value;
 378         case MATCHCRITERIA_SCORE_LOWER:
 379                 return info->score <= prop->value;
 380         case MATCHCRITERIA_SCORE_EQUAL:
 381                 return info->score == prop->value;
 382         case MATCHCRITERIA_SIZE_GREATER:
 383                 /* FIXME: info->size is an off_t */
 384                 return info->size > (off_t) prop->value;
 385         case MATCHCRITERIA_SIZE_EQUAL:
 386                 /* FIXME: info->size is an off_t */
 387                 return info->size == (off_t) prop->value;
 388         case MATCHCRITERIA_SIZE_SMALLER:
 389                 /* FIXME: info->size is an off_t */
 390                 return info->size <  (off_t) prop->value;
 391         case MATCHCRITERIA_NEWSGROUPS:
 392                 return matcherprop_string_match(prop, info->newsgroups);
 393         case MATCHCRITERIA_NOT_NEWSGROUPS:
 394                 return !matcherprop_string_match(prop, info->newsgroups);
 395         case MATCHCRITERIA_INREPLYTO:
 396                 return matcherprop_string_match(prop, info->inreplyto);
 397         case MATCHCRITERIA_NOT_INREPLYTO:
 398                 return !matcherprop_string_match(prop, info->inreplyto);
 399         case MATCHCRITERIA_REFERENCES:
 400                 return matcherprop_string_match(prop, info->references);
 401         case MATCHCRITERIA_NOT_REFERENCES:
 402                 return !matcherprop_string_match(prop, info->references);
 403         case MATCHCRITERIA_EXECUTE:
 404                 return matcherprop_match_execute(prop, info);
 405         case MATCHCRITERIA_NOT_EXECUTE:
 406                 return !matcherprop_match_execute(prop, info);
 407         default:
 408                 return 0;
 409         }
 410 }
 411
 412 /* ********************* MatcherList *************************** */
 413
 414
 415 MatcherList * matcherlist_new(GSList * matchers, gboolean bool_and)
 416 {
 417         MatcherList * cond;
 418
 419         cond = g_new0(MatcherList, 1);
 420
 421         cond->matchers = matchers;
 422         cond->bool_and = bool_and;
 423
 424         return cond;
 425 }
 426
 427 void matcherlist_free(MatcherList * cond)
 428 {
 429         GSList * l;
 430
 431         for(l = cond->matchers ; l != NULL ; l = g_slist_next(l)) {
 432                 matcherprop_free((MatcherProp *) l->data);
 433         }
 434         g_free(cond);
 435 }
 436
 437 /*
 438   skip the headers
 439  */
 440
 441 static void matcherlist_skip_headers(FILE *fp)
 442 {
 443         gchar buf[BUFFSIZE];
 444
 445         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1) {
 446         }
 447 }
 448
 449 /*
 450   matcherprop_match_one_header
 451   returns TRUE if buf matchs the MatchersProp criteria
 452  */
 453
 454 static gboolean matcherprop_match_one_header(MatcherProp * matcher,
 455                                              gchar * buf)
 456 {
 457         gboolean result;
 458         Header *header;
 459
 460         switch(matcher->criteria) {
 461         case MATCHCRITERIA_HEADER:
 462         case MATCHCRITERIA_NOT_HEADER:
 463                 header = procheader_parse_header(buf);
 464                 if (!header)
 465                         return FALSE;
 466                 if (procheader_headername_equal(header->name,
 467                                                 matcher->header)) {
 468                         if (matcher->criteria == MATCHCRITERIA_HEADER)
 469                                 result = matcherprop_string_match(matcher, header->body);
 470                         else
 471                                 result = !matcherprop_string_match(matcher, header->body);
 472                         procheader_header_free(header);
 473                         return result;
 474                 }
 475                 else {
 476                         procheader_header_free(header);
 477                 }
 478                 break;
 479         case MATCHCRITERIA_HEADERS_PART:
 480         case MATCHCRITERIA_MESSAGE:
 481                 return matcherprop_string_match(matcher, buf);
 482         case MATCHCRITERIA_NOT_MESSAGE:
 483         case MATCHCRITERIA_NOT_HEADERS_PART:
 484                 return !matcherprop_string_match(matcher, buf);
 485         }
 486         return FALSE;
 487 }
 488
 489 /*
 490   matcherprop_criteria_header
 491   returns TRUE if the headers must be matched
 492  */
 493
 494 static gboolean matcherprop_criteria_headers(MatcherProp * matcher)
 495 {
 496         switch(matcher->criteria) {
 497         case MATCHCRITERIA_HEADER:
 498         case MATCHCRITERIA_NOT_HEADER:
 499         case MATCHCRITERIA_HEADERS_PART:
 500         case MATCHCRITERIA_NOT_HEADERS_PART:
 501                 return TRUE;
 502         default:
 503                 return FALSE;
 504         }
 505 }
 506
 507 static gboolean matcherprop_criteria_message(MatcherProp * matcher)
 508 {
 509         switch(matcher->criteria) {
 510         case MATCHCRITERIA_MESSAGE:
 511         case MATCHCRITERIA_NOT_MESSAGE:
 512                 return TRUE;
 513         default:
 514                 return FALSE;
 515         }
 516 }
 517
 518 /*
 519   matcherlist_match_one_header
 520   returns TRUE if match should stop
 521  */
 522
 523 static gboolean matcherlist_match_one_header(MatcherList * matchers,
 524                                          gchar * buf)
 525 {
 526         GSList * l;
 527
 528         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 529                 MatcherProp * matcher = (MatcherProp *) l->data;
 530
 531                 if (matcherprop_criteria_headers(matcher) ||
 532                     matcherprop_criteria_message(matcher)) {
 533                         if (matcherprop_match_one_header(matcher, buf)) {
 534                                 matcher->result = TRUE;
 535                         }
 536                 }
 537
 538                 if (matcherprop_criteria_headers(matcher)) {
 539                         if (matcher->result) {
 540                                 if (!matchers->bool_and)
 541                                         return TRUE;
 542                         }
 543                 }
 544         }
 545
 546         return FALSE;
 547 }
 548
 549 /*
 550   matcherlist_match_headers
 551   returns TRUE if one of the headers matchs the MatcherList criteria
 552  */
 553
 554 static gboolean matcherlist_match_headers(MatcherList * matchers, FILE * fp)
 555 {
 556         gchar buf[BUFFSIZE];
 557
 558         while (procheader_get_one_field(buf, sizeof(buf), fp, NULL) != -1)
 559                 if (matcherlist_match_one_header(matchers, buf))
 560                         return TRUE;
 561
 562         return FALSE;
 563 }
 564
 565 /*
 566   matcherprop_criteria_body
 567   returns TRUE if the body must be matched
 568  */
 569
 570 static gboolean matcherprop_criteria_body(MatcherProp * matcher)
 571 {
 572         switch(matcher->criteria) {
 573         case MATCHCRITERIA_BODY_PART:
 574         case MATCHCRITERIA_NOT_BODY_PART:
 575                 return TRUE;
 576         default:
 577                 return FALSE;
 578         }
 579 }
 580
 581 /*
 582   matcherprop_match_line
 583   returns TRUE if the string matchs the MatcherProp criteria
 584  */
 585
 586 static gboolean matcherprop_match_line(MatcherProp * matcher, gchar * line)
 587 {
 588         switch(matcher->criteria) {
 589         case MATCHCRITERIA_BODY_PART:
 590         case MATCHCRITERIA_MESSAGE:
 591                 return matcherprop_string_match(matcher, line);
 592         case MATCHCRITERIA_NOT_BODY_PART:
 593         case MATCHCRITERIA_NOT_MESSAGE:
 594                 return !matcherprop_string_match(matcher, line);
 595         }
 596         return FALSE;
 597 }
 598
 599 /*
 600   matcherlist_match_line
 601   returns TRUE if the string matchs the MatcherList criteria
 602  */
 603
 604 static gboolean matcherlist_match_line(MatcherList * matchers, gchar * line)
 605 {
 606         GSList * l;
 607
 608         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 609                 MatcherProp * matcher = (MatcherProp *) l->data;
 610
 611                 if (matcherprop_criteria_body(matcher) ||
 612                     matcherprop_criteria_message(matcher)) {
 613                         if (matcherprop_match_line(matcher, line)) {
 614                                 matcher->result = TRUE;
 615                         }
 616                 }
 617
 618                 if (matcher->result) {
 619                         if (!matchers->bool_and)
 620                                 return TRUE;
 621                 }
 622         }
 623         return FALSE;
 624 }
 625
 626 /*
 627   matcherlist_match_body
 628   returns TRUE if one line of the body matchs the MatcherList criteria
 629  */
 630
 631 static gboolean matcherlist_match_body(MatcherList * matchers, FILE * fp)
 632 {
 633         gchar buf[BUFFSIZE];
 634
 635         while (fgets(buf, sizeof(buf), fp) != NULL)
 636                 if (matcherlist_match_line(matchers, buf))
 637                         return TRUE;
 638
 639         return FALSE;
 640 }
 641
 642 gboolean matcherlist_match_file(MatcherList * matchers, MsgInfo * info,
 643                                 gboolean result)
 644 {
 645         gboolean read_headers;
 646         gboolean read_body;
 647         GSList * l;
 648         FILE * fp;
 649         gchar * file;
 650
 651         /* file need to be read ? */
 652
 653         read_headers = FALSE;
 654         read_body = FALSE;
 655         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 656                 MatcherProp * matcher = (MatcherProp *) l->data;
 657
 658                 if (matcherprop_criteria_headers(matcher))
 659                         read_headers = TRUE;
 660                 if (matcherprop_criteria_body(matcher))
 661                         read_body = TRUE;
 662                 if (matcherprop_criteria_message(matcher)) {
 663                         read_headers = TRUE;
 664                         read_body = TRUE;
 665                 }
 666                 matcher->result = FALSE;
 667         }
 668
 669         if (!read_headers && !read_body)
 670                 return result;
 671
 672         file = procmsg_get_message_file(info);
 673         if (file == NULL)
 674                 return FALSE;
 675
 676         if ((fp = fopen(file, "rb")) == NULL) {
 677                 FILE_OP_ERROR(file, "fopen");
 678                 g_free(file);
 679                 return result;
 680         }
 681
 682         /* read the headers */
 683
 684         if (read_headers) {
 685                 if (matcherlist_match_headers(matchers, fp))
 686                         read_body = FALSE;
 687         }
 688         else {
 689                 matcherlist_skip_headers(fp);
 690         }
 691
 692         /* read the body */
 693         if (read_body) {
 694                 matcherlist_match_body(matchers, fp);
 695         }
 696
 697         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 698                 MatcherProp * matcher = (MatcherProp *) l->data;
 699
 700                 if (matcherprop_criteria_headers(matcher) ||
 701                     matcherprop_criteria_body(matcher)    ||
 702                     matcherprop_criteria_message(matcher)) {
 703                         if (matcher->result) {
 704                                 if (!matchers->bool_and) {
 705                                         result = TRUE;
 706                                         break;
 707                                 }
 708                         }
 709                         else {
 710                                 if (matchers->bool_and) {
 711                                         result = FALSE;
 712                                         break;
 713                                 }
 714                         }
 715                 }
 716         }
 717
 718         g_free(file);
 719
 720         fclose(fp);
 721
 722         return result;
 723 }
 724
 725 /* test a list of condition */
 726
 727 gboolean matcherlist_match(MatcherList * matchers, MsgInfo * info)
 728 {
 729         GSList * l;
 730         gboolean result;
 731
 732         if (matchers->bool_and)
 733                 result = TRUE;
 734         else
 735                 result = FALSE;
 736
 737         /* test the cached elements */
 738
 739         for(l = matchers->matchers ; l != NULL ; l = g_slist_next(l)) {
 740                 MatcherProp * matcher = (MatcherProp *) l->data;
 741
 742                 switch(matcher->criteria) {
 743                 case MATCHCRITERIA_ALL:
 744                 case MATCHCRITERIA_UNREAD:
 745                 case MATCHCRITERIA_NOT_UNREAD:
 746                 case MATCHCRITERIA_NEW:
 747                 case MATCHCRITERIA_NOT_NEW:
 748                 case MATCHCRITERIA_MARKED:
 749                 case MATCHCRITERIA_NOT_MARKED:
 750                 case MATCHCRITERIA_DELETED:
 751                 case MATCHCRITERIA_NOT_DELETED:
 752                 case MATCHCRITERIA_REPLIED:
 753                 case MATCHCRITERIA_NOT_REPLIED:
 754                 case MATCHCRITERIA_FORWARDED:
 755                 case MATCHCRITERIA_NOT_FORWARDED:
 756                 case MATCHCRITERIA_SUBJECT:
 757                 case MATCHCRITERIA_NOT_SUBJECT:
 758                 case MATCHCRITERIA_FROM:
 759                 case MATCHCRITERIA_NOT_FROM:
 760                 case MATCHCRITERIA_TO:
 761                 case MATCHCRITERIA_NOT_TO:
 762                 case MATCHCRITERIA_CC:
 763                 case MATCHCRITERIA_NOT_CC:
 764                 case MATCHCRITERIA_TO_OR_CC:
 765                 case MATCHCRITERIA_NOT_TO_AND_NOT_CC:
 766                 case MATCHCRITERIA_AGE_GREATER:
 767                 case MATCHCRITERIA_AGE_LOWER:
 768                 case MATCHCRITERIA_NEWSGROUPS:
 769                 case MATCHCRITERIA_NOT_NEWSGROUPS:
 770                 case MATCHCRITERIA_INREPLYTO:
 771                 case MATCHCRITERIA_NOT_INREPLYTO:
 772                 case MATCHCRITERIA_REFERENCES:
 773                 case MATCHCRITERIA_NOT_REFERENCES:
 774                 case MATCHCRITERIA_SCORE_GREATER:
 775                 case MATCHCRITERIA_SCORE_LOWER:
 776                 case MATCHCRITERIA_SCORE_EQUAL:
 777                 case MATCHCRITERIA_SIZE_GREATER:
 778                 case MATCHCRITERIA_SIZE_SMALLER:
 779                 case MATCHCRITERIA_SIZE_EQUAL:
 780                 case MATCHCRITERIA_EXECUTE:
 781                 case MATCHCRITERIA_NOT_EXECUTE:
 782                         if (matcherprop_match(matcher, info)) {
 783                                 if (!matchers->bool_and) {
 784                                         return TRUE;
 785                                 }
 786                         }
 787                         else {
 788                                 if (matchers->bool_and) {
 789                                         return FALSE;
 790                                 }
 791                         }
 792                 }
 793         }
 794
 795         /* test the condition on the file */
 796
 797         if (matcherlist_match_file(matchers, info, result)) {
 798                 if (!matchers->bool_and)
 799                         return TRUE;
 800         }
 801         else {
 802                 if (matchers->bool_and)
 803                         return FALSE;
 804         }
 805
 806         return result;
 807 }
 808
 809
 810 gchar * matcherprop_to_string(MatcherProp * matcher)
 811 {
 812         gchar * matcher_str = NULL;
 813         gchar * criteria_str;
 814         gchar * matchtype_str;
 815         int i;
 816         gchar * p;
 817         gint count;
 818         gchar * expr_str;
 819         gchar * out;
 820
 821         criteria_str = NULL;
 822         for(i = 0 ; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)) ;
 823             i++) {
 824                 if (matchparser_tab[i].id == matcher->criteria)
 825                         criteria_str = matchparser_tab[i].str;
 826         }
 827         if (criteria_str == NULL)
 828                 return NULL;
 829
 830         switch(matcher->criteria) {
 831         case MATCHCRITERIA_AGE_GREATER:
 832         case MATCHCRITERIA_AGE_LOWER:
 833         case MATCHCRITERIA_SCORE_GREATER:
 834         case MATCHCRITERIA_SCORE_LOWER:
 835         case MATCHCRITERIA_SCORE_EQUAL:
 836         case MATCHCRITERIA_SIZE_GREATER:
 837         case MATCHCRITERIA_SIZE_SMALLER:
 838         case MATCHCRITERIA_SIZE_EQUAL:
 839                 return g_strdup_printf("%s %i", criteria_str, matcher->value);
 840         case MATCHCRITERIA_ALL:
 841         case MATCHCRITERIA_UNREAD:
 842         case MATCHCRITERIA_NOT_UNREAD:
 843         case MATCHCRITERIA_NEW:
 844         case MATCHCRITERIA_NOT_NEW:
 845         case MATCHCRITERIA_MARKED:
 846         case MATCHCRITERIA_NOT_MARKED:
 847         case MATCHCRITERIA_DELETED:
 848         case MATCHCRITERIA_NOT_DELETED:
 849         case MATCHCRITERIA_REPLIED:
 850         case MATCHCRITERIA_NOT_REPLIED:
 851         case MATCHCRITERIA_FORWARDED:
 852         case MATCHCRITERIA_NOT_FORWARDED:
 853                 return g_strdup(criteria_str);
 854         case MATCHCRITERIA_EXECUTE:
 855         case MATCHCRITERIA_NOT_EXECUTE:
 856                 return g_strdup_printf("%s \"%s\"", criteria_str, matcher->expr);
 857         }
 858
 859         matchtype_str = NULL;
 860         for(i = 0 ; i < (int) (sizeof(matchparser_tab) / sizeof(MatchParser)) ;
 861             i++) {
 862                 if (matchparser_tab[i].id == matcher->matchtype)
 863                         matchtype_str = matchparser_tab[i].str;
 864         }
 865
 866         if (matchtype_str == NULL)
 867                 return NULL;
 868
 869         switch (matcher->matchtype) {
 870         case MATCHTYPE_MATCH:
 871         case MATCHTYPE_MATCHCASE:
 872         case MATCHTYPE_REGEXP:
 873         case MATCHTYPE_REGEXPCASE:
 874                 if (matcher->header)
 875                         matcher_str =
 876                                 g_strdup_printf("%s \"%s\" %s \"%s\"",
 877                                            criteria_str, matcher->header,
 878                                            matchtype_str, matcher->expr);
 879                 else
 880                         matcher_str =
 881                                 g_strdup_printf("%s %s \"%s\"", criteria_str,
 882                                                 matchtype_str, matcher->expr);
 883                 break;
 884         }
 885
 886         return matcher_str;
 887 }
 888
 889 gchar * matcherlist_to_string(MatcherList * matchers)
 890 {
 891         gint count;
 892         gchar ** vstr;
 893         GSList * l;
 894         gchar ** cur_str;
 895         gchar * result;
 896
 897         count = g_slist_length(matchers->matchers);
 898         vstr = g_new(gchar *, count + 1);
 899
 900         for (l = matchers->matchers, cur_str = vstr ; l != NULL ;
 901              l = g_slist_next(l), cur_str ++) {
 902                 *cur_str = matcherprop_to_string((MatcherProp *) l->data);
 903                 if (*cur_str == NULL)
 904                         break;
 905         }
 906         *cur_str = NULL;
 907
 908         if (matchers->bool_and)
 909                 result = g_strjoinv(" & ", vstr);
 910         else
 911                 result = g_strjoinv(" | ", vstr);
 912
 913         for(cur_str = vstr ; *cur_str != NULL ; cur_str ++)
 914                 g_free(*cur_str);
 915         g_free(vstr);
 916
 917         return result;
 918 }
 919
 920 #define STRLEN_ZERO(s) ((s) ? strlen(s) : 0)
 921 #define STRLEN_DEFAULT(s,d) ((s) ? strlen(s) : STRLEN_ZERO(d))
 922 /* matching_build_command() - preferably cmd should be unescaped */
 923 gchar * matching_build_command(gchar * cmd, MsgInfo * info)
 924 {
 925         gchar * s = cmd;
 926         gchar * filename = NULL;
 927         gchar * processed_cmd;
 928         gchar * p;
 929         gint size;
 930
 931         const gchar *const no_subject    = _("(none)") ;
 932         const gchar *const no_from       = _("(none)") ;
 933         const gchar *const no_to         = _("(none)") ;
 934         const gchar *const no_cc         = _("(none)") ;
 935         const gchar *const no_date       = _("(none)") ;
 936         const gchar *const no_msgid      = _("(none)") ;
 937         const gchar *const no_newsgroups = _("(none)") ;
 938         const gchar *const no_references = _("(none)") ;
 939
 940         size = STRLEN_ZERO(cmd) + 1;
 941         while (*s != '\0') {
 942                 if (*s == '%') {
 943                         s++;
 944                         switch (*s) {
 945                         case '%':
 946                                 size -= 1;
 947                                 break;
 948                         case 's': /* subject */
 949                                 size += STRLEN_DEFAULT(info->subject, no_subject) - 2;
 950                                 break;
 951                         case 'f': /* from */
 952                                 size += STRLEN_DEFAULT(info->from, no_from) - 2;
 953                                 break;
 954                         case 't': /* to */
 955                                 size += STRLEN_DEFAULT(info->to, no_to) - 2;
 956                                 break;
 957                         case 'c': /* cc */
 958                                 size += STRLEN_DEFAULT(info->cc, no_cc) - 2;
 959                                 break;
 960                         case 'd': /* date */
 961                                 size += STRLEN_DEFAULT(info->date, no_date) - 2;
 962                                 break;
 963                         case 'i': /* message-id */
 964                                 size += STRLEN_DEFAULT(info->msgid, no_msgid) - 2;
 965                                 break;
 966                         case 'n': /* newsgroups */
 967                                 size += STRLEN_DEFAULT(info->newsgroups, no_newsgroups) - 2;
 968                                 break;
 969                         case 'r': /* references */
 970                                 size += STRLEN_DEFAULT(info->references, no_references) - 2;
 971                                 break;
 972                         case 'F': /* file */
 973                                 filename = folder_item_fetch_msg(info->folder,
 974                                                                  info->msgnum);
 975
 976                                 if (filename == NULL) {
 977                                         g_warning(_("filename is not set"));
 978                                         return NULL;
 979                                 }
 980                                 else
 981                                         size += strlen(filename) - 2;
 982                                 break;
 983                         }
 984                         s++;
 985                 }
 986                 else s++;
 987         }
 988
 989
 990         processed_cmd = g_new0(gchar, size);
 991         s = cmd;
 992         p = processed_cmd;
 993
 994         while (*s != '\0') {
 995                 if (*s == '%') {
 996                         s++;
 997                         switch (*s) {
 998                         case '%':
 999                                 *p = '%';
1000                                 p++;
1001                                 break;
1002                         case 's': /* subject */
1003                                 if (info->subject != NULL)
1004                                         strcpy(p, info->subject);
1005                                 else
1006                                         strcpy(p, no_subject);
1007                                 p += strlen(p);
1008                                 break;
1009                         case 'f': /* from */
1010                                 if (info->from != NULL)
1011                                         strcpy(p, info->from);
1012                                 else
1013                                         strcpy(p, no_from);
1014                                 p += strlen(p);
1015                                 break;
1016                         case 't': /* to */
1017                                 if (info->to != NULL)
1018                                         strcpy(p, info->to);
1019                                 else
1020                                         strcpy(p, no_to);
1021                                 p += strlen(p);
1022                                 break;
1023                         case 'c': /* cc */
1024                                 if (info->cc != NULL)
1025                                         strcpy(p, info->cc);
1026                                 else
1027                                         strcpy(p, no_cc);
1028                                 p += strlen(p);
1029                                 break;
1030                         case 'd': /* date */
1031                                 if (info->date != NULL)
1032                                         strcpy(p, info->date);
1033                                 else
1034                                         strcpy(p, no_date);
1035                                 p += strlen(p);
1036                                 break;
1037                         case 'i': /* message-id */
1038                                 if (info->msgid != NULL)
1039                                         strcpy(p, info->msgid);
1040                                 else
1041                                         strcpy(p, no_msgid);
1042                                 p += strlen(p);
1043                                 break;
1044                         case 'n': /* newsgroups */
1045                                 if (info->newsgroups != NULL)
1046                                         strcpy(p, info->newsgroups);
1047                                 else
1048                                         strcpy(p, no_newsgroups);
1049                                 p += strlen(p);
1050                                 break;
1051                         case 'r': /* references */
1052                                 if (info->references != NULL)
1053                                         strcpy(p, info->references);
1054                                 else
1055                                         strcpy(p, no_references);
1056                                 p += strlen(p);
1057                                 break;
1058                         case 'F': /* file */
1059                                 strcpy(p, filename);
1060                                 p += strlen(p);
1061                                 break;
1062                         default:
1063                                 *p = '%';
1064                                 p++;
1065                                 *p = *s;
1066                                 p++;
1067                                 break;
1068                         }
1069                         s++;
1070                 }
1071                 else {
1072                         *p = *s;
1073                         p++;
1074                         s++;
1075                 }
1076         }
1077
1078         debug_print("*** exec string \"%s\"\n", processed_cmd);
1079         return processed_cmd;
1080 }
1081 #undef STRLEN_DEFAULT
1082 #undef STRLEN_ZERO
1083
1084 /* ************************************************************ */
1085
1086 static void prefs_scoring_write(FILE * fp, GSList * prefs_scoring)
1087 {
1088         GSList * cur;
1089
1090         for (cur = prefs_scoring; cur != NULL; cur = cur->next) {
1091                 gchar *scoring_str;
1092                 ScoringProp * prop;
1093
1094                 prop = (ScoringProp *) cur->data;
1095                 scoring_str = scoringprop_to_string(prop);
1096                 if (fputs(scoring_str, fp) == EOF ||
1097                     fputc('\n', fp) == EOF) {
1098                         FILE_OP_ERROR("scoring config", "fputs || fputc");
1099                         g_free(scoring_str);
1100                         return;
1101                 }
1102                 g_free(scoring_str);
1103         }
1104 }
1105
1106 static void prefs_filtering_write(FILE * fp, GSList * prefs_scoring)
1107 {
1108         GSList * cur;
1109
1110         for (cur = prefs_scoring; cur != NULL; cur = cur->next) {
1111                 gchar *filtering_str;
1112                 FilteringProp * prop;
1113
1114                 if (NULL == (prop = (FilteringProp *) cur->data))
1115                         continue;
1116
1117                 if (NULL == (filtering_str = filteringprop_to_string(prop)))
1118                         continue;
1119
1120                 if (fputs(filtering_str, fp) == EOF ||
1121                     fputc('\n', fp) == EOF) {
1122                         FILE_OP_ERROR("filtering config", "fputs || fputc");
1123                         g_free(filtering_str);
1124                         return;
1125                 }
1126                 g_free(filtering_str);
1127         }
1128 }
1129
1130 static gboolean prefs_matcher_write_func(GNode *node, gpointer data)
1131 {
1132         FolderItem *item;
1133         FILE * fp = data;
1134         gchar * id;
1135         GSList * prefs_scoring;
1136         GSList * prefs_filtering;
1137
1138         if (node != NULL) {
1139                 item = node->data;
1140                 /* prevent from the warning */
1141                 if (item->path == NULL)
1142                         return FALSE;
1143                 id = folder_item_get_identifier(item);
1144                 if (id == NULL)
1145                         return FALSE;
1146                 prefs_scoring = item->prefs->scoring;
1147                 prefs_filtering = item->prefs->processing;
1148         }
1149         else {
1150                 item = NULL;
1151                 id = g_strdup("global"); /* because it is g_freed */
1152                 prefs_scoring = global_scoring;
1153                 prefs_filtering = global_processing;
1154         }
1155
1156         if (prefs_filtering != NULL || prefs_scoring != NULL) {
1157                 fprintf(fp, "[%s]\n", id);
1158
1159                 prefs_filtering_write(fp, prefs_filtering);
1160                 prefs_scoring_write(fp, prefs_scoring);
1161
1162                 fputc('\n', fp);
1163         }
1164
1165         g_free(id);
1166
1167         return FALSE;
1168 }
1169
1170 static void prefs_matcher_save(FILE * fp)
1171 {
1172         GList * cur;
1173
1174         for (cur = folder_get_list() ; cur != NULL ; cur = g_list_next(cur)) {
1175                 Folder *folder;
1176
1177                 folder = (Folder *) cur->data;
1178                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1179                                 prefs_matcher_write_func, fp);
1180         }
1181         prefs_matcher_write_func(NULL, fp);
1182 }
1183
1184
1185 void prefs_matcher_write_config(void)
1186 {
1187         gchar *rcpath;
1188         PrefFile *pfile;
1189         GSList *cur;
1190         ScoringProp * prop;
1191
1192         debug_print(_("Writing matcher configuration...\n"));
1193
1194         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1195                              MATCHER_RC, NULL);
1196
1197         if ((pfile = prefs_write_open(rcpath)) == NULL) {
1198                 g_warning(_("failed to write configuration to file\n"));
1199                 g_free(rcpath);
1200                 return;
1201         }
1202
1203
1204         prefs_matcher_save(pfile->fp);
1205
1206         g_free(rcpath);
1207
1208         if (prefs_write_close(pfile) < 0) {
1209                 g_warning(_("failed to write configuration to file\n"));
1210                 return;
1211         }
1212 }
1213
1214 /* ******************************************************************* */
1215
1216 void prefs_matcher_read_config(void)
1217 {
1218         gchar * rcpath;
1219         FILE * f;
1220
1221         prefs_scoring_clear();
1222         prefs_filtering_clear();
1223
1224         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, MATCHER_RC, NULL);
1225         f = fopen(rcpath, "rb");
1226         g_free(rcpath);
1227
1228         if (f != NULL) {
1229                 matcher_parser_start_parsing(f);
1230                 fclose(f);
1231         }
1232         else {
1233                 /* previous version compatibily */
1234
1235                 /* printf("reading filtering\n"); */
1236                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1237                                      FILTERING_RC, NULL);
1238                 f = fopen(rcpath, "rb");
1239                 g_free(rcpath);
1240
1241                 if (f != NULL) {
1242                         matcher_parser_start_parsing(f);
1243                         fclose(matcher_parserin);
1244                 }
1245
1246                 /* printf("reading scoring\n"); */
1247                 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1248                                      SCORING_RC, NULL);
1249                 f = fopen(rcpath, "rb");
1250                 g_free(rcpath);
1251
1252                 if (f != NULL) {
1253                         matcher_parser_start_parsing(f);
1254                         fclose(matcher_parserin);
1255                 }
1256         }
1257 }