camel/camel-folder-search.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  *  Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
   4  *
   5  *  Authors: Michael Zucchi <notzed@ximian.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of version 2 of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  */
  21
  22 /* This is a helper class for folders to implement the search function.
  23    It implements enough to do basic searches on folders that can provide
  24    an in-memory summary and a body index. */
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include <config.h>
  28 #endif
  29
  30 /* POSIX requires <sys/types.h> be included before <regex.h> */
  31 #include <sys/types.h>
  32
  33 #include <ctype.h>
  34 #include <regex.h>
  35 #include <stdio.h>
  36 #include <string.h>
  37
  38 #include <glib.h>
  39 #include <glib/gi18n-lib.h>
  40
  41 #include "camel-exception.h"
  42 #include "camel-folder-search.h"
  43 #include "camel-folder-thread.h"
  44 #include "camel-medium.h"
  45 #include "camel-mime-message.h"
  46 #include "camel-multipart.h"
  47 #include "camel-search-private.h"
  48 #include "camel-stream-mem.h"
  49 #include "camel-db.h"
  50 #include "camel-store.h"
  51 #include "camel-vee-folder.h"
  52 #include "camel-string-utils.h"
  53 #include "camel-search-sql.h"
  54
  55 #define d(x)
  56 #define r(x)
  57
  58 struct _CamelFolderSearchPrivate {
  59         CamelException *ex;
  60
  61         CamelFolderThread *threads;
  62         GHashTable *threads_hash;
  63 };
  64
  65 #define _PRIVATE(o) (((CamelFolderSearch *)(o))->priv)
  66
  67 static ESExpResult *search_not(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  68
  69 static ESExpResult *search_header_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  70 static ESExpResult *search_header_matches(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  71 static ESExpResult *search_header_starts_with(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  72 static ESExpResult *search_header_ends_with(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  73 static ESExpResult *search_header_exists(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  74 static ESExpResult *search_match_all(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *search);
  75 static ESExpResult *search_match_threads(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *s);
  76 static ESExpResult *search_body_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  77 static ESExpResult *search_user_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  78 static ESExpResult *search_user_tag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  79 static ESExpResult *search_system_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  80 static ESExpResult *search_get_sent_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  81 static ESExpResult *search_get_received_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  82 static ESExpResult *search_get_current_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  83 static ESExpResult *search_get_size(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  84 static ESExpResult *search_uid(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s);
  85
  86 static ESExpResult *search_dummy(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search);
  87
  88 static void camel_folder_search_class_init (CamelFolderSearchClass *klass);
  89 static void camel_folder_search_init       (CamelFolderSearch *obj);
  90 static void camel_folder_search_finalize   (CamelObject *obj);
  91
  92 static int read_uid_callback (void * ref, int ncol, char ** cols, char **name);
  93
  94 static CamelObjectClass *camel_folder_search_parent;
  95
  96 static void
  97 camel_folder_search_class_init (CamelFolderSearchClass *klass)
  98 {
  99         camel_folder_search_parent = camel_type_get_global_classfuncs (camel_object_get_type ());
 100
 101         klass->not = search_not;
 102
 103         klass->match_all = search_match_all;
 104         klass->match_threads = search_match_threads;
 105         klass->body_contains = search_body_contains;
 106         klass->header_contains = search_header_contains;
 107         klass->header_matches = search_header_matches;
 108         klass->header_starts_with = search_header_starts_with;
 109         klass->header_ends_with = search_header_ends_with;
 110         klass->header_exists = search_header_exists;
 111         klass->user_tag = search_user_tag;
 112         klass->user_flag = search_user_flag;
 113         klass->system_flag = search_system_flag;
 114         klass->get_sent_date = search_get_sent_date;
 115         klass->get_received_date = search_get_received_date;
 116         klass->get_current_date = search_get_current_date;
 117         klass->get_size = search_get_size;
 118         klass->uid = search_uid;
 119 }
 120
 121 static void
 122 camel_folder_search_init (CamelFolderSearch *obj)
 123 {
 124         struct _CamelFolderSearchPrivate *p;
 125
 126         p = _PRIVATE(obj) = g_malloc0(sizeof(*p));
 127
 128         obj->sexp = e_sexp_new();
 129 }
 130
 131 static void
 132 camel_folder_search_finalize (CamelObject *obj)
 133 {
 134         CamelFolderSearch *search = (CamelFolderSearch *)obj;
 135         struct _CamelFolderSearchPrivate *p = _PRIVATE(obj);
 136
 137         if (search->sexp)
 138                 e_sexp_unref(search->sexp);
 139
 140         g_free(search->last_search);
 141         g_free(p);
 142 }
 143
 144 CamelType
 145 camel_folder_search_get_type (void)
 146 {
 147         static CamelType type = CAMEL_INVALID_TYPE;
 148
 149         if (type == CAMEL_INVALID_TYPE) {
 150                 type = camel_type_register (camel_object_get_type (), "CamelFolderSearch",
 151                                             sizeof (CamelFolderSearch),
 152                                             sizeof (CamelFolderSearchClass),
 153                                             (CamelObjectClassInitFunc) camel_folder_search_class_init,
 154                                             NULL,
 155                                             (CamelObjectInitFunc) camel_folder_search_init,
 156                                             (CamelObjectFinalizeFunc) camel_folder_search_finalize);
 157         }
 158
 159         return type;
 160 }
 161
 162 #ifdef offsetof
 163 #define CAMEL_STRUCT_OFFSET(type, field)        ((gint) offsetof (type, field))
 164 #else
 165 #define CAMEL_STRUCT_OFFSET(type, field)        ((gint) ((gchar*) &((type *) 0)->field))
 166 #endif
 167
 168 static struct {
 169         char *name;
 170         int offset;
 171         int flags;              /* 0x02 = immediate, 0x01 = always enter */
 172 } builtins[] = {
 173         /* these have default implementations in e-sexp */
 174         { "and", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, and), 2 },
 175         { "or", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, or), 2 },
 176         /* we need to override this one though to implement an 'array not' */
 177         { "not", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, not), 0 },
 178         { "<", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, lt), 2 },
 179         { ">", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, gt), 2 },
 180         { "=", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, eq), 2 },
 181
 182         /* these we have to use our own default if there is none */
 183         /* they should all be defined in the language? so it parses, or should they not?? */
 184         { "match-all", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, match_all), 3 },
 185         { "match-threads", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, match_threads), 3 },
 186         { "body-contains", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, body_contains), 1 },
 187         { "header-contains", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_contains), 1 },
 188         { "header-matches", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_matches), 1 },
 189         { "header-starts-with", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_starts_with), 1 },
 190         { "header-ends-with", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_ends_with), 1 },
 191         { "header-exists", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, header_exists), 1 },
 192         { "user-tag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, user_tag), 1 },
 193         { "user-flag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, user_flag), 1 },
 194         { "system-flag", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, system_flag), 1 },
 195         { "get-sent-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_sent_date), 1 },
 196         { "get-received-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_received_date), 1 },
 197         { "get-current-date", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_current_date), 1 },
 198         { "get-size", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, get_size), 1 },
 199         { "uid", CAMEL_STRUCT_OFFSET(CamelFolderSearchClass, uid), 1 },
 200 };
 201
 202 void
 203 camel_folder_search_construct (CamelFolderSearch *search)
 204 {
 205         int i;
 206         CamelFolderSearchClass *klass = (CamelFolderSearchClass *)CAMEL_OBJECT_GET_CLASS(search);
 207
 208         for (i=0;i<sizeof(builtins)/sizeof(builtins[0]);i++) {
 209                 void *func;
 210                 /* c is sure messy sometimes */
 211                 func = *((void **)(((char *)klass)+builtins[i].offset));
 212                 if (func == NULL && builtins[i].flags&1) {
 213                         g_warning("Search class doesn't implement '%s' method: %s", builtins[i].name, camel_type_to_name(CAMEL_OBJECT_GET_CLASS(search)));
 214                         func = (void *)search_dummy;
 215                 }
 216                 if (func != NULL) {
 217                         if (builtins[i].flags&2) {
 218                                 e_sexp_add_ifunction(search->sexp, 0, builtins[i].name, (ESExpIFunc *)func, search);
 219                         } else {
 220                                 e_sexp_add_function(search->sexp, 0, builtins[i].name, (ESExpFunc *)func, search);
 221                         }
 222                 }
 223         }
 224 }
 225
 226 /**
 227  * camel_folder_search_new:
 228  *
 229  * Create a new CamelFolderSearch object.
 230  *
 231  * A CamelFolderSearch is a subclassable, extensible s-exp
 232  * evaluator which enforces a particular set of s-expressions.
 233  * Particular methods may be overriden by an implementation to
 234  * implement a search for any sort of backend.
 235  *
 236  * Return value: A new CamelFolderSearch widget.
 237  **/
 238 CamelFolderSearch *
 239 camel_folder_search_new (void)
 240 {
 241         CamelFolderSearch *new = CAMEL_FOLDER_SEARCH (camel_object_new (camel_folder_search_get_type ()));
 242
 243         camel_folder_search_construct(new);
 244         return new;
 245 }
 246
 247 /**
 248  * camel_folder_search_set_folder:
 249  * @search:
 250  * @folder: A folder.
 251  *
 252  * Set the folder attribute of the search.  This is currently unused, but
 253  * could be used to perform a slow-search when indexes and so forth are not
 254  * available.  Or for use by subclasses.
 255  **/
 256 void
 257 camel_folder_search_set_folder(CamelFolderSearch *search, CamelFolder *folder)
 258 {
 259         search->folder = folder;
 260 }
 261
 262 /**
 263  * camel_folder_search_set_summary:
 264  * @search:
 265  * @summary: An array of CamelMessageInfo pointers.
 266  *
 267  * Set the array of summary objects representing the span of the search.
 268  *
 269  * If this is not set, then a subclass must provide the functions
 270  * for searching headers and for the match-all operator.
 271  **/
 272 void
 273 camel_folder_search_set_summary(CamelFolderSearch *search, GPtrArray *summary)
 274 {
 275         search->summary = summary;
 276 }
 277
 278 /**
 279  * camel_folder_search_set_body_index:
 280  * @search:
 281  * @index:
 282  *
 283  * Set the index representing the contents of all messages
 284  * in this folder.  If this is not set, then the folder implementation
 285  * should sub-class the CamelFolderSearch and provide its own
 286  * body-contains function.
 287  **/
 288 void
 289 camel_folder_search_set_body_index(CamelFolderSearch *search, CamelIndex *index)
 290 {
 291         if (search->body_index)
 292                 camel_object_unref((CamelObject *)search->body_index);
 293         search->body_index = index;
 294         if (index)
 295                 camel_object_ref((CamelObject *)index);
 296 }
 297
 298 /**
 299  * camel_folder_search_execute_expression:
 300  * @search:
 301  * @expr:
 302  * @ex:
 303  *
 304  * Execute the search expression @expr, returning an array of
 305  * all matches as a GPtrArray of uid's of matching messages.
 306  *
 307  * Note that any settings such as set_body_index(), set_folder(),
 308  * and so on are reset to #NULL once the search has completed.
 309  *
 310  * TODO: The interface should probably return summary items instead
 311  * (since they are much more useful to any client).
 312  *
 313  * Return value: A GPtrArray of strings of all matching messages.
 314  * This must only be freed by camel_folder_search_free_result.
 315  **/
 316 GPtrArray *
 317 camel_folder_search_execute_expression(CamelFolderSearch *search, const char *expr, CamelException *ex)
 318 {
 319         ESExpResult *r;
 320         GPtrArray *matches;
 321         int i;
 322         GHashTable *results;
 323         struct _CamelFolderSearchPrivate *p = _PRIVATE(search);
 324
 325         p->ex = ex;
 326
 327         /* only re-parse if the search has changed */
 328         if (search->last_search == NULL
 329             || strcmp(search->last_search, expr)) {
 330                 e_sexp_input_text(search->sexp, expr, strlen(expr));
 331                 if (e_sexp_parse(search->sexp) == -1) {
 332                         camel_exception_setv(ex, 1, _("Cannot parse search expression: %s:\n%s"), e_sexp_error(search->sexp), expr);
 333                         return NULL;
 334                 }
 335
 336                 g_free(search->last_search);
 337                 search->last_search = g_strdup(expr);
 338         }
 339         r = e_sexp_eval(search->sexp);
 340         if (r == NULL) {
 341                 if (!camel_exception_is_set(ex))
 342                         camel_exception_setv(ex, 1, _("Error executing search expression: %s:\n%s"), e_sexp_error(search->sexp), expr);
 343                 return NULL;
 344         }
 345
 346         matches = g_ptr_array_new();
 347
 348         /* now create a folder summary to return?? */
 349         if (r->type == ESEXP_RES_ARRAY_PTR) {
 350                 d(printf("got result ...\n"));
 351                 if (search->summary) {
 352                         /* reorder result in summary order */
 353                         results = g_hash_table_new(g_str_hash, g_str_equal);
 354                         for (i=0;i<r->value.ptrarray->len;i++) {
 355                                 d(printf("adding match: %s\n", (char *)g_ptr_array_index(r->value.ptrarray, i)));
 356                                 g_hash_table_insert(results, g_ptr_array_index(r->value.ptrarray, i), GINT_TO_POINTER (1));
 357                         }
 358                         for (i=0;i<search->summary->len;i++) {
 359                                 char *uid = g_ptr_array_index(search->summary, i);
 360                                 if (g_hash_table_lookup(results, uid)) {
 361                                         g_ptr_array_add(matches, (gpointer) camel_pstring_strdup(uid));
 362                                 }
 363                         }
 364                         g_hash_table_destroy(results);
 365                 } else {
 366                         for (i=0;i<r->value.ptrarray->len;i++) {
 367                                 d(printf("adding match: %s\n", (char *)g_ptr_array_index(r->value.ptrarray, i)));
 368                                 g_ptr_array_add(matches, (gpointer) camel_pstring_strdup(g_ptr_array_index(r->value.ptrarray, i)));
 369                         }
 370                 }
 371         } else {
 372                 g_warning("Search returned an invalid result type");
 373         }
 374
 375         e_sexp_result_free(search->sexp, r);
 376
 377         if (p->threads)
 378                 camel_folder_thread_messages_unref(p->threads);
 379         if (p->threads_hash)
 380                 g_hash_table_destroy(p->threads_hash);
 381
 382         p->threads = NULL;
 383         p->threads_hash = NULL;
 384         search->folder = NULL;
 385         search->summary = NULL;
 386         search->current = NULL;
 387         search->body_index = NULL;
 388
 389         return matches;
 390 }
 391
 392 /**
 393  * camel_folder_search_search:
 394  * @search:
 395  * @expr:
 396  * @uids: to search against, NULL for all uid's.
 397  * @ex:
 398  *
 399  * Run a search.  Search must have had Folder already set on it, and
 400  * it must implement summaries.
 401  *
 402  * Return value:
 403  **/
 404 GPtrArray *
 405 camel_folder_search_search(CamelFolderSearch *search, const char *expr, GPtrArray *uids, CamelException *ex)
 406 {
 407         ESExpResult *r;
 408         GPtrArray *matches = NULL, *summary_set;
 409         int i;
 410         CamelDB *cdb;
 411         char *sql_query, *tmp, *tmp1;
 412         GHashTable *results;
 413
 414         struct _CamelFolderSearchPrivate *p = _PRIVATE(search);
 415
 416         g_assert(search->folder);
 417
 418         /* Sync the db, so that we search the db for changes */
 419         camel_folder_summary_save_to_db (search->folder->summary, ex);
 420
 421         p->ex = ex;
 422
 423         /* We route body-contains search and uid search through memory and not via db. */
 424         if (uids || strstr((const char *) expr, "body-contains")) {
 425                 /* setup our search list only contains those we're interested in */
 426                 search->summary = camel_folder_get_summary(search->folder);
 427
 428                 if (uids) {
 429                         GHashTable *uids_hash = g_hash_table_new(g_str_hash, g_str_equal);
 430
 431                         summary_set = search->summary_set = g_ptr_array_new();
 432                         for (i=0;i<uids->len;i++)
 433                                 g_hash_table_insert(uids_hash, uids->pdata[i], uids->pdata[i]);
 434                         for (i=0;i<search->summary->len;i++)
 435                                 if (g_hash_table_lookup(uids_hash, search->summary->pdata[i]))
 436                                         g_ptr_array_add(search->summary_set, search->summary->pdata[i]);
 437                         g_hash_table_destroy(uids_hash);
 438                 } else {
 439                         summary_set = search->summary;
 440                 }
 441
 442                 /* only re-parse if the search has changed */
 443                 if (search->last_search == NULL
 444                     || strcmp(search->last_search, expr)) {
 445                         e_sexp_input_text(search->sexp, expr, strlen(expr));
 446                         if (e_sexp_parse(search->sexp) == -1) {
 447                                 camel_exception_setv(ex, 1, _("Cannot parse search expression: %s:\n%s"), e_sexp_error(search->sexp), expr);
 448                                 goto fail;
 449                         }
 450
 451                         g_free(search->last_search);
 452                         search->last_search = g_strdup(expr);
 453                 }
 454                 r = e_sexp_eval(search->sexp);
 455                 if (r == NULL) {
 456                         if (!camel_exception_is_set(ex))
 457                                 camel_exception_setv(ex, 1, _("Error executing search expression: %s:\n%s"), e_sexp_error(search->sexp), expr);
 458                         goto fail;
 459                 }
 460
 461                 matches = g_ptr_array_new();
 462
 463                 /* now create a folder summary to return?? */
 464                 if (r->type == ESEXP_RES_ARRAY_PTR) {
 465                         d(printf("got result\n"));
 466
 467                         /* reorder result in summary order */
 468                         results = g_hash_table_new(g_str_hash, g_str_equal);
 469                         for (i=0;i<r->value.ptrarray->len;i++) {
 470                                 d(printf("adding match: %s\n", (char *)g_ptr_array_index(r->value.ptrarray, i)));
 471                                 g_hash_table_insert(results, g_ptr_array_index(r->value.ptrarray, i), GINT_TO_POINTER (1));
 472                         }
 473
 474                         for (i=0;i<summary_set->len;i++) {
 475                                 char *uid = g_ptr_array_index(summary_set, i);
 476                                 if (g_hash_table_lookup(results, uid))
 477                                         g_ptr_array_add(matches, (gpointer) camel_pstring_strdup(uid));
 478                         }
 479                         g_hash_table_destroy(results);
 480                 }
 481
 482                 e_sexp_result_free(search->sexp, r);
 483
 484         } else {
 485                 d(printf ("sexp is : [%s]\n", expr));
 486                 sql_query = camel_sexp_to_sql (expr);
 487                 tmp1 = camel_db_sqlize_string(search->folder->full_name);
 488                 tmp = g_strdup_printf ("SELECT uid FROM %s %s %s", tmp1, sql_query ? "WHERE":"", sql_query?sql_query:"");
 489                 camel_db_free_sqlized_string (tmp1);
 490                 g_free (sql_query);
 491                 d(printf("Equivalent sql %s\n", tmp));
 492
 493                 matches = g_ptr_array_new();
 494                 cdb = (CamelDB *) (search->folder->cdb);
 495                 camel_db_select (cdb, tmp, (CamelDBSelectCB) read_uid_callback, matches, ex);
 496                 g_free (tmp);
 497
 498         }
 499
 500 fail:
 501         /* these might be allocated by match-threads */
 502         if (p->threads)
 503                 camel_folder_thread_messages_unref(p->threads);
 504         if (p->threads_hash)
 505                 g_hash_table_destroy(p->threads_hash);
 506         if (search->summary_set)
 507                 g_ptr_array_free(search->summary_set, TRUE);
 508         if (search->summary)
 509                 camel_folder_free_summary(search->folder, search->summary);
 510
 511         p->threads = NULL;
 512         p->threads_hash = NULL;
 513         search->folder = NULL;
 514         search->summary = NULL;
 515         search->summary_set = NULL;
 516         search->current = NULL;
 517         search->body_index = NULL;
 518
 519         return matches;
 520 }
 521
 522 void camel_folder_search_free_result(CamelFolderSearch *search, GPtrArray *result)
 523 {
 524         g_ptr_array_foreach (result, (GFunc) camel_pstring_free, NULL);
 525         g_ptr_array_free(result, TRUE);
 526 }
 527
 528 /* dummy function, returns false always, or an empty match array */
 529 static ESExpResult *
 530 search_dummy(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 531 {
 532         ESExpResult *r;
 533
 534         if (search->current == NULL) {
 535                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 536                 r->value.bool = FALSE;
 537         } else {
 538                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
 539                 r->value.ptrarray = g_ptr_array_new();
 540         }
 541
 542         return r;
 543 }
 544
 545 /* impelemnt an 'array not', i.e. everything in the summary, not in the supplied array */
 546 static ESExpResult *
 547 search_not(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 548 {
 549         ESExpResult *r;
 550         int i;
 551
 552         if (argc>0) {
 553                 if (argv[0]->type == ESEXP_RES_ARRAY_PTR) {
 554                         GPtrArray *v = argv[0]->value.ptrarray;
 555                         const char *uid;
 556
 557                         r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
 558                         r->value.ptrarray = g_ptr_array_new();
 559
 560                         /* not against a single message?*/
 561                         if (search->current) {
 562                                 int found = FALSE;
 563
 564                                 uid = camel_message_info_uid(search->current);
 565                                 for (i=0;!found && i<v->len;i++) {
 566                                         if (strcmp(uid, v->pdata[i]) == 0)
 567                                                 found = TRUE;
 568                                 }
 569
 570                                 if (!found)
 571                                         g_ptr_array_add(r->value.ptrarray, (char *)uid);
 572                         } else if (search->summary == NULL) {
 573                                 g_warning("No summary set, 'not' against an array requires a summary");
 574                         } else {
 575                                 /* 'not' against the whole summary */
 576                                 GHashTable *have = g_hash_table_new(g_str_hash, g_str_equal);
 577                                 char **s;
 578                                 char **m;
 579
 580                                 s = (char **)v->pdata;
 581                                 for (i=0;i<v->len;i++)
 582                                         g_hash_table_insert(have, s[i], s[i]);
 583
 584                                 v = search->summary_set?search->summary_set:search->summary;
 585                                 m = (char **)v->pdata;
 586                                 for (i=0;i<v->len;i++) {
 587                                         char *uid = m[i];
 588
 589                                         if (g_hash_table_lookup(have, uid) == NULL)
 590                                                 g_ptr_array_add(r->value.ptrarray, uid);
 591                                 }
 592                                 g_hash_table_destroy(have);
 593                         }
 594                 } else {
 595                         int res = TRUE;
 596
 597                         if (argv[0]->type == ESEXP_RES_BOOL)
 598                                 res = ! argv[0]->value.bool;
 599
 600                         r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 601                         r->value.bool = res;
 602                 }
 603         } else {
 604                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 605                 r->value.bool = TRUE;
 606         }
 607
 608         return r;
 609 }
 610
 611 static ESExpResult *
 612 search_match_all(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *search)
 613 {
 614         int i;
 615         ESExpResult *r, *r1;
 616         gchar *error_msg;
 617         GPtrArray *v;
 618
 619         if (argc>1) {
 620                 g_warning("match-all only takes a single argument, other arguments ignored");
 621         }
 622
 623         /* we are only matching a single message?  or already inside a match-all? */
 624         if (search->current) {
 625                 d(printf("matching against 1 message: %s\n", camel_message_info_subject(search->current)));
 626
 627                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 628                 r->value.bool = FALSE;
 629
 630                 if (argc>0) {
 631                         r1 = e_sexp_term_eval(f, argv[0]);
 632                         if (r1->type == ESEXP_RES_BOOL) {
 633                                 r->value.bool = r1->value.bool;
 634                         } else {
 635                                 g_warning("invalid syntax, matches require a single bool result");
 636                                 error_msg = g_strdup_printf(_("(%s) requires a single bool result"), "match-all");
 637                                 e_sexp_fatal_error(f, error_msg);
 638                                 g_free(error_msg);
 639                         }
 640                         e_sexp_result_free(f, r1);
 641                 } else {
 642                         r->value.bool = TRUE;
 643                 }
 644                 return r;
 645         }
 646
 647         r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
 648         r->value.ptrarray = g_ptr_array_new();
 649
 650         if (search->summary == NULL) {
 651                 /* TODO: make it work - e.g. use the folder and so forth for a slower search */
 652                 g_warning("No summary supplied, match-all doesn't work with no summary");
 653                 g_assert(0);
 654                 return r;
 655         }
 656
 657         v = search->summary_set?search->summary_set:search->summary;
 658
 659         if (v->len > g_hash_table_size (search->folder->summary->loaded_infos) && !CAMEL_IS_VEE_FOLDER (search->folder)) {
 660                 camel_folder_summary_reload_from_db (search->folder->summary, search->priv->ex);
 661         }
 662
 663         e_sexp_term_eval (f, argv [0]);
 664
 665         for (i=0;i<v->len;i++) {
 666                 const char *uid;
 667
 668                 search->current = camel_folder_summary_uid (search->folder->summary, v->pdata[i]);
 669                 uid = camel_message_info_uid(search->current);
 670
 671                 if (argc>0) {
 672                         r1 = e_sexp_term_eval(f, argv[0]);
 673                         if (r1->type == ESEXP_RES_BOOL) {
 674                                 if (r1->value.bool)
 675                                         g_ptr_array_add(r->value.ptrarray, (char *)uid);
 676                         } else {
 677                                 g_warning("invalid syntax, matches require a single bool result");
 678                                 error_msg = g_strdup_printf(_("(%s) requires a single bool result"), "match-all");
 679                                 e_sexp_fatal_error(f, error_msg);
 680                                 g_free(error_msg);
 681                         }
 682                         e_sexp_result_free(f, r1);
 683                 } else {
 684                         g_ptr_array_add(r->value.ptrarray, (char *)uid);
 685                 }
 686                 camel_message_info_free (search->current);
 687         }
 688         search->current = NULL;
 689         return r;
 690 }
 691
 692 static void
 693 fill_thread_table(struct _CamelFolderThreadNode *root, GHashTable *id_hash)
 694 {
 695         while (root) {
 696                 g_hash_table_insert(id_hash, (char *)camel_message_info_uid(root->message), root);
 697                 if (root->child)
 698                         fill_thread_table(root->child, id_hash);
 699                 root = root->next;
 700         }
 701 }
 702
 703 static void
 704 add_thread_results(struct _CamelFolderThreadNode *root, GHashTable *result_hash)
 705 {
 706         while (root) {
 707                 g_hash_table_insert(result_hash, (char *)camel_message_info_uid(root->message), GINT_TO_POINTER (1));
 708                 if (root->child)
 709                         add_thread_results(root->child, result_hash);
 710                 root = root->next;
 711         }
 712 }
 713
 714 static void
 715 add_results(char *uid, void *dummy, GPtrArray *result)
 716 {
 717         g_ptr_array_add(result, uid);
 718 }
 719
 720 static ESExpResult *
 721 search_match_threads(struct _ESExp *f, int argc, struct _ESExpTerm **argv, CamelFolderSearch *search)
 722 {
 723         ESExpResult *r;
 724         struct _CamelFolderSearchPrivate *p = search->priv;
 725         int i, type;
 726         GHashTable *results;
 727         gchar *error_msg;
 728
 729         /* not supported in match-all */
 730         if (search->current) {
 731                 error_msg = g_strdup_printf(_("(%s) not allowed inside %s"), "match-threads", "match-all");
 732                 e_sexp_fatal_error(f, error_msg);
 733                 g_free(error_msg);
 734         }
 735
 736         if (argc == 0) {
 737                 error_msg = g_strdup_printf(_("(%s) requires a match type string"), "match-threads");
 738                 e_sexp_fatal_error(f, error_msg);
 739                 g_free(error_msg);
 740         }
 741
 742         r = e_sexp_term_eval(f, argv[0]);
 743         if (r->type != ESEXP_RES_STRING) {
 744                 error_msg = g_strdup_printf(_("(%s) requires a match type string"), "match-threads");
 745                 e_sexp_fatal_error(f, error_msg);
 746                 g_free(error_msg);
 747         }
 748
 749         type = 0;
 750         if (!strcmp(r->value.string, "none"))
 751                 type = 0;
 752         else if (!strcmp(r->value.string, "all"))
 753                 type = 1;
 754         else if (!strcmp(r->value.string, "replies"))
 755                 type = 2;
 756         else if (!strcmp(r->value.string, "replies_parents"))
 757                 type = 3;
 758         else if (!strcmp(r->value.string, "single"))
 759                 type = 4;
 760         e_sexp_result_free(f, r);
 761
 762         /* behave as (begin does */
 763         r = NULL;
 764         for (i=1;i<argc;i++) {
 765                 if (r)
 766                         e_sexp_result_free(f, r);
 767                 r = e_sexp_term_eval(f, argv[i]);
 768         }
 769
 770         if (r == NULL || r->type != ESEXP_RES_ARRAY_PTR) {
 771                 error_msg = g_strdup_printf(_("(%s) expects an array result"), "match-threads");
 772                 e_sexp_fatal_error(f, error_msg);
 773                 g_free(error_msg);
 774         }
 775
 776         if (type == 0)
 777                 return r;
 778
 779         if (search->folder == NULL) {
 780                 error_msg = g_strdup_printf(_("(%s) requires the folder set"), "match-threads");
 781                 e_sexp_fatal_error(f, error_msg);
 782                 g_free(error_msg);
 783         }
 784
 785         /* cache this, so we only have to re-calculate once per search at most */
 786         if (p->threads == NULL) {
 787                 p->threads = camel_folder_thread_messages_new(search->folder, NULL, TRUE);
 788                 p->threads_hash = g_hash_table_new(g_str_hash, g_str_equal);
 789
 790                 fill_thread_table(p->threads->tree, p->threads_hash);
 791         }
 792
 793         results = g_hash_table_new(g_str_hash, g_str_equal);
 794         for (i=0;i<r->value.ptrarray->len;i++) {
 795                 struct _CamelFolderThreadNode *node, *scan;
 796
 797                 if (type != 4)
 798                         g_hash_table_insert(results, g_ptr_array_index(r->value.ptrarray, i), GINT_TO_POINTER(1));
 799
 800                 node = g_hash_table_lookup(p->threads_hash, (char *)g_ptr_array_index(r->value.ptrarray, i));
 801                 if (node == NULL) /* this shouldn't happen but why cry over spilt milk */
 802                         continue;
 803
 804                 /* select messages in thread according to search criteria */
 805                 if (type == 4) {
 806                         if (node->child == NULL && node->parent == NULL)
 807                                 g_hash_table_insert(results, (char *)camel_message_info_uid(node->message), GINT_TO_POINTER(1));
 808                 } else {
 809                         if (type == 3) {
 810                                 scan = node;
 811                                 while (scan && scan->parent) {
 812                                         scan = scan->parent;
 813                                         g_hash_table_insert(results, (char *)camel_message_info_uid(scan->message), GINT_TO_POINTER(1));
 814                                 }
 815                         } else if (type == 1) {
 816                                 while (node && node->parent)
 817                                         node = node->parent;
 818                         }
 819                         g_hash_table_insert(results, (char *)camel_message_info_uid(node->message), GINT_TO_POINTER(1));
 820                         if (node->child)
 821                                 add_thread_results(node->child, results);
 822                 }
 823         }
 824         e_sexp_result_free(f, r);
 825
 826         r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
 827         r->value.ptrarray = g_ptr_array_new();
 828
 829         g_hash_table_foreach(results, (GHFunc)add_results, r->value.ptrarray);
 830         g_hash_table_destroy(results);
 831
 832         return r;
 833 }
 834
 835 static ESExpResult *
 836 check_header (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search, camel_search_match_t how)
 837 {
 838         ESExpResult *r;
 839         int truth = FALSE;
 840
 841         r(printf("executing check-header %d\n", how));
 842
 843         /* are we inside a match-all? */
 844         if (search->current && argc>1
 845             && argv[0]->type == ESEXP_RES_STRING) {
 846                 char *headername;
 847                 const char *header = NULL;
 848                 char strbuf[32];
 849                 int i, j;
 850                 camel_search_t type = CAMEL_SEARCH_TYPE_ASIS;
 851                 struct _camel_search_words *words;
 852
 853                 /* only a subset of headers are supported .. */
 854                 headername = argv[0]->value.string;
 855                 if (!g_ascii_strcasecmp(headername, "subject")) {
 856                         header = camel_message_info_subject(search->current);
 857                 } else if (!g_ascii_strcasecmp(headername, "date")) {
 858                         /* FIXME: not a very useful form of the date */
 859                         sprintf(strbuf, "%d", (int)camel_message_info_date_sent(search->current));
 860                         header = strbuf;
 861                 } else if (!g_ascii_strcasecmp(headername, "from")) {
 862                         header = camel_message_info_from(search->current);
 863                         type = CAMEL_SEARCH_TYPE_ADDRESS;
 864                 } else if (!g_ascii_strcasecmp(headername, "to")) {
 865                         header = camel_message_info_to(search->current);
 866                         type = CAMEL_SEARCH_TYPE_ADDRESS;
 867                 } else if (!g_ascii_strcasecmp(headername, "cc")) {
 868                         header = camel_message_info_cc(search->current);
 869                         type = CAMEL_SEARCH_TYPE_ADDRESS;
 870                 } else if (!g_ascii_strcasecmp(headername, "x-camel-mlist")) {
 871                         header = camel_message_info_mlist(search->current);
 872                         type = CAMEL_SEARCH_TYPE_MLIST;
 873                 } else {
 874                         e_sexp_resultv_free(f, argc, argv);
 875                         e_sexp_fatal_error(f, _("Performing query on unknown header: %s"), headername);
 876                 }
 877
 878                 if (header == NULL)
 879                         header = "";
 880
 881                 /* performs an OR of all words */
 882                 for (i=1;i<argc && !truth;i++) {
 883                         if (argv[i]->type == ESEXP_RES_STRING) {
 884                                 if (argv[i]->value.string[0] == 0) {
 885                                         truth = TRUE;
 886                                 } else if (how == CAMEL_SEARCH_MATCH_CONTAINS) {
 887                                         /* doesn't make sense to split words on anything but contains i.e. we can't have an ending match different words */
 888                                         words = camel_search_words_split((const unsigned char *) argv[i]->value.string);
 889                                         truth = TRUE;
 890                                         for (j=0;j<words->len && truth;j++) {
 891                                                 truth = camel_search_header_match(header, words->words[j]->word, how, type, NULL);
 892                                         }
 893                                         camel_search_words_free(words);
 894                                 } else {
 895                                         truth = camel_search_header_match(header, argv[i]->value.string, how, type, NULL);
 896                                 }
 897                         }
 898                 }
 899         }
 900         /* TODO: else, find all matches */
 901
 902         r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 903         r->value.bool = truth;
 904
 905         return r;
 906 }
 907
 908 /*
 909 static void
 910 l_printf(char *node)
 911 {
 912 printf("%s\t", node);
 913 }
 914 */
 915
 916 static ESExpResult *
 917 search_header_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 918 {
 919         return check_header(f, argc, argv, search, CAMEL_SEARCH_MATCH_CONTAINS);
 920 }
 921
 922 static ESExpResult *
 923 search_header_matches(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 924 {
 925         return check_header(f, argc, argv, search, CAMEL_SEARCH_MATCH_EXACT);
 926 }
 927
 928 static ESExpResult *
 929 search_header_starts_with (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 930 {
 931         return check_header(f, argc, argv, search, CAMEL_SEARCH_MATCH_STARTS);
 932 }
 933
 934 static ESExpResult *
 935 search_header_ends_with (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 936 {
 937         return check_header(f, argc, argv, search, CAMEL_SEARCH_MATCH_ENDS);
 938 }
 939
 940 static ESExpResult *
 941 search_header_exists (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
 942 {
 943         ESExpResult *r;
 944
 945         r(printf ("executing header-exists\n"));
 946
 947         if (search->current) {
 948                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
 949                 if (argc == 1 && argv[0]->type == ESEXP_RES_STRING)
 950                         r->value.bool = camel_medium_get_header(CAMEL_MEDIUM(search->current), argv[0]->value.string) != NULL;
 951
 952         } else {
 953                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
 954                 r->value.ptrarray = g_ptr_array_new();
 955         }
 956
 957         return r;
 958 }
 959
 960 /* this is just to OR results together */
 961 struct _glib_sux_donkeys {
 962         int count;
 963         GPtrArray *uids;
 964 };
 965
 966 /* or, store all unique values */
 967 static void
 968 g_lib_sux_htor(char *key, int value, struct _glib_sux_donkeys *fuckup)
 969 {
 970         g_ptr_array_add(fuckup->uids, key);
 971 }
 972
 973 /* and, only store duplicates */
 974 static void
 975 g_lib_sux_htand(char *key, int value, struct _glib_sux_donkeys *fuckup)
 976 {
 977         if (value == fuckup->count)
 978                 g_ptr_array_add(fuckup->uids, key);
 979 }
 980
 981 static int
 982 match_message_index(CamelIndex *idx, const char *uid, const char *match, CamelException *ex)
 983 {
 984         CamelIndexCursor *wc, *nc;
 985         const char *word, *name;
 986         int truth = FALSE;
 987
 988         wc = camel_index_words(idx);
 989         if (wc) {
 990                 while (!truth && (word = camel_index_cursor_next(wc))) {
 991                         if (camel_ustrstrcase(word,match) != NULL) {
 992                                 /* perf: could have the wc cursor return the name cursor */
 993                                 nc = camel_index_find(idx, word);
 994                                 if (nc) {
 995                                         while (!truth && (name = camel_index_cursor_next(nc)))
 996                                                 truth = strcmp(name, uid) == 0;
 997                                         camel_object_unref((CamelObject *)nc);
 998                                 }
 999                         }
1000                 }
1001                 camel_object_unref((CamelObject *)wc);
1002         }
1003
1004         return truth;
1005 }
1006
1007 /*
1008  "one two" "three" "four five"
1009
1010   one and two
1011 or
1012   three
1013 or
1014   four and five
1015 */
1016
1017 /* returns messages which contain all words listed in words */
1018 static GPtrArray *
1019 match_words_index(CamelFolderSearch *search, struct _camel_search_words *words, CamelException *ex)
1020 {
1021         GPtrArray *result = g_ptr_array_new();
1022         GHashTable *ht = g_hash_table_new(g_str_hash, g_str_equal);
1023         struct _glib_sux_donkeys lambdafoo;
1024         CamelIndexCursor *wc, *nc;
1025         const char *word, *name;
1026         int i;
1027
1028         /* we can have a maximum of 32 words, as we use it as the AND mask */
1029
1030         wc = camel_index_words(search->body_index);
1031         if (wc) {
1032                 while ((word = camel_index_cursor_next(wc))) {
1033                         for (i=0;i<words->len;i++) {
1034                                 if (camel_ustrstrcase(word, words->words[i]->word) != NULL) {
1035                                         /* perf: could have the wc cursor return the name cursor */
1036                                         nc = camel_index_find(search->body_index, word);
1037                                         if (nc) {
1038                                                 while ((name = camel_index_cursor_next(nc))) {
1039                                                                 int mask;
1040
1041                                                                 mask = (GPOINTER_TO_INT(g_hash_table_lookup(ht, name))) | (1<<i);
1042                                                                 g_hash_table_insert(ht, (char *) camel_pstring_peek(name), GINT_TO_POINTER(mask));
1043                                                 }
1044                                                 camel_object_unref((CamelObject *)nc);
1045                                         }
1046                                 }
1047                         }
1048                 }
1049                 camel_object_unref((CamelObject *)wc);
1050
1051                 lambdafoo.uids = result;
1052                 lambdafoo.count = (1<<words->len) - 1;
1053                 g_hash_table_foreach(ht, (GHFunc)g_lib_sux_htand, &lambdafoo);
1054                 g_hash_table_destroy(ht);
1055         }
1056
1057         return result;
1058 }
1059
1060 static gboolean
1061 match_words_1message (CamelDataWrapper *object, struct _camel_search_words *words, guint32 *mask)
1062 {
1063         CamelDataWrapper *containee;
1064         int truth = FALSE;
1065         int parts, i;
1066
1067         containee = camel_medium_get_content_object (CAMEL_MEDIUM (object));
1068
1069         if (containee == NULL)
1070                 return FALSE;
1071
1072         /* using the object types is more accurate than using the mime/types */
1073         if (CAMEL_IS_MULTIPART (containee)) {
1074                 parts = camel_multipart_get_number (CAMEL_MULTIPART (containee));
1075                 for (i = 0; i < parts && truth == FALSE; i++) {
1076                         CamelDataWrapper *part = (CamelDataWrapper *)camel_multipart_get_part (CAMEL_MULTIPART (containee), i);
1077                         if (part)
1078                                 truth = match_words_1message(part, words, mask);
1079                 }
1080         } else if (CAMEL_IS_MIME_MESSAGE (containee)) {
1081                 /* for messages we only look at its contents */
1082                 truth = match_words_1message((CamelDataWrapper *)containee, words, mask);
1083         } else if (camel_content_type_is(CAMEL_DATA_WRAPPER (containee)->mime_type, "text", "*")) {
1084                 /* for all other text parts, we look inside, otherwise we dont care */
1085                 CamelStreamMem *mem = (CamelStreamMem *)camel_stream_mem_new ();
1086
1087                 /* FIXME: The match should be part of a stream op */
1088                 camel_data_wrapper_decode_to_stream (containee, CAMEL_STREAM (mem));
1089                 camel_stream_write (CAMEL_STREAM (mem), "", 1);
1090                 for (i=0;i<words->len;i++) {
1091                         /* FIXME: This is horridly slow, and should use a real search algorithm */
1092                         if (camel_ustrstrcase((const char *) mem->buffer->data, words->words[i]->word) != NULL) {
1093                                 *mask |= (1<<i);
1094                                 /* shortcut a match */
1095                                 if (*mask == (1<<(words->len))-1)
1096                                         return TRUE;
1097                         }
1098                 }
1099
1100                 camel_object_unref (mem);
1101         }
1102
1103         return truth;
1104 }
1105
1106 static gboolean
1107 match_words_message(CamelFolder *folder, const char *uid, struct _camel_search_words *words, CamelException *ex)
1108 {
1109         guint32 mask;
1110         CamelMimeMessage *msg;
1111         CamelException x = CAMEL_EXCEPTION_INITIALISER;
1112         int truth;
1113
1114         msg = camel_folder_get_message(folder, uid, &x);
1115         if (msg) {
1116                 mask = 0;
1117                 truth = match_words_1message((CamelDataWrapper *)msg, words, &mask);
1118                 camel_object_unref((CamelObject *)msg);
1119         } else {
1120                 camel_exception_clear(&x);
1121                 truth = FALSE;
1122         }
1123
1124         return truth;
1125 }
1126
1127 static GPtrArray *
1128 match_words_messages(CamelFolderSearch *search, struct _camel_search_words *words, CamelException *ex)
1129 {
1130         int i;
1131         GPtrArray *matches = g_ptr_array_new();
1132
1133         if (search->body_index) {
1134                 GPtrArray *indexed;
1135                 struct _camel_search_words *simple;
1136
1137                 simple = camel_search_words_simple(words);
1138                 indexed = match_words_index(search, simple, ex);
1139                 camel_search_words_free(simple);
1140
1141                 for (i=0;i<indexed->len;i++) {
1142                         const char *uid = g_ptr_array_index(indexed, i);
1143
1144                         if (match_words_message(search->folder, uid, words, ex))
1145                                 g_ptr_array_add(matches, (char *)uid);
1146                 }
1147
1148                 g_ptr_array_free(indexed, TRUE);
1149         } else {
1150                 GPtrArray *v = search->summary_set?search->summary_set:search->summary;
1151
1152                 for (i=0;i<v->len;i++) {
1153                         char *uid  = g_ptr_array_index(v, i);
1154
1155                         if (match_words_message(search->folder, uid, words, ex))
1156                                 g_ptr_array_add(matches, (char *)uid);
1157                 }
1158         }
1159
1160         return matches;
1161 }
1162
1163 static ESExpResult *
1164 search_body_contains(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
1165 {
1166         int i, j;
1167         CamelException *ex = search->priv->ex;
1168         struct _camel_search_words *words;
1169         ESExpResult *r;
1170         struct _glib_sux_donkeys lambdafoo;
1171
1172         if (search->current) {
1173                 int truth = FALSE;
1174
1175                 if (argc == 1 && argv[0]->value.string[0] == 0) {
1176                         truth = TRUE;
1177                 } else {
1178                         for (i=0;i<argc && !truth;i++) {
1179                                 if (argv[i]->type == ESEXP_RES_STRING) {
1180                                         words = camel_search_words_split((const unsigned char *) argv[i]->value.string);
1181                                         truth = TRUE;
1182                                         if ((words->type & CAMEL_SEARCH_WORD_COMPLEX) == 0 && search->body_index) {
1183                                                 for (j=0;j<words->len && truth;j++)
1184                                                         truth = match_message_index(search->body_index, camel_message_info_uid(search->current), words->words[j]->word, ex);
1185                                         } else {
1186                                                 /* TODO: cache current message incase of multiple body search terms */
1187                                                 truth = match_words_message(search->folder, camel_message_info_uid(search->current), words, ex);
1188                                         }
1189                                         camel_search_words_free(words);
1190                                 }
1191                         }
1192                 }
1193                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
1194                 r->value.bool = truth;
1195         } else {
1196                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1197                 r->value.ptrarray = g_ptr_array_new();
1198
1199                 if (argc == 1 && argv[0]->value.string[0] == 0) {
1200                         GPtrArray *v = search->summary_set?search->summary_set:search->summary;
1201
1202                         for (i=0;i<v->len;i++) {
1203                                 char *uid = g_ptr_array_index(v, i);
1204
1205                                 g_ptr_array_add(r->value.ptrarray, uid);
1206                         }
1207                 } else {
1208                         GHashTable *ht = g_hash_table_new(g_str_hash, g_str_equal);
1209                         GPtrArray *matches;
1210
1211                         for (i=0;i<argc;i++) {
1212                                 if (argv[i]->type == ESEXP_RES_STRING) {
1213                                         words = camel_search_words_split((const unsigned char *) argv[i]->value.string);
1214                                         if ((words->type & CAMEL_SEARCH_WORD_COMPLEX) == 0 && search->body_index) {
1215                                                 matches = match_words_index(search, words, ex);
1216                                         } else {
1217                                                 matches = match_words_messages(search, words, ex);
1218                                         }
1219                                         for (j=0;j<matches->len;j++) {
1220                                                 g_hash_table_insert(ht, matches->pdata[j], matches->pdata[j]);
1221                                         }
1222                                         g_ptr_array_free(matches, TRUE);
1223                                         camel_search_words_free(words);
1224                                 }
1225                         }
1226                         lambdafoo.uids = r->value.ptrarray;
1227                         g_hash_table_foreach(ht, (GHFunc)g_lib_sux_htor, &lambdafoo);
1228                         g_hash_table_destroy(ht);
1229                 }
1230         }
1231
1232         return r;
1233 }
1234
1235 static ESExpResult *
1236 search_user_flag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
1237 {
1238         ESExpResult *r;
1239         int i;
1240
1241         r(printf("executing user-flag\n"));
1242
1243         /* are we inside a match-all? */
1244         if (search->current) {
1245                 int truth = FALSE;
1246                 /* performs an OR of all words */
1247                 for (i=0;i<argc && !truth;i++) {
1248                         if (argv[i]->type == ESEXP_RES_STRING
1249                             && camel_message_info_user_flag(search->current, argv[i]->value.string)) {
1250                                 truth = TRUE;
1251                                 break;
1252                         }
1253                 }
1254                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
1255                 r->value.bool = truth;
1256         } else {
1257                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1258                 r->value.ptrarray = g_ptr_array_new();
1259         }
1260
1261         return r;
1262 }
1263
1264 static ESExpResult *
1265 search_system_flag (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
1266 {
1267         ESExpResult *r;
1268
1269         r(printf ("executing system-flag\n"));
1270
1271         if (search->current) {
1272                 gboolean truth = FALSE;
1273
1274                 if (argc == 1)
1275                         truth = camel_system_flag_get (camel_message_info_flags(search->current), argv[0]->value.string);
1276
1277                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
1278                 r->value.bool = truth;
1279         } else {
1280                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1281                 r->value.ptrarray = g_ptr_array_new ();
1282         }
1283
1284         return r;
1285 }
1286
1287 static ESExpResult *
1288 search_user_tag(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
1289 {
1290         const char *value = NULL;
1291         ESExpResult *r;
1292
1293         r(printf("executing user-tag\n"));
1294
1295         if (search->current && argc == 1)
1296                 value = camel_message_info_user_tag(search->current, argv[0]->value.string);
1297
1298         r = e_sexp_result_new(f, ESEXP_RES_STRING);
1299         r->value.string = g_strdup (value ? value : "");
1300
1301         return r;
1302 }
1303
1304 static ESExpResult *
1305 search_get_sent_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s)
1306 {
1307         ESExpResult *r;
1308
1309         r(printf("executing get-sent-date\n"));
1310
1311         /* are we inside a match-all? */
1312         if (s->current) {
1313                 r = e_sexp_result_new(f, ESEXP_RES_INT);
1314
1315                 r->value.number = camel_message_info_date_sent(s->current);
1316         } else {
1317                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1318                 r->value.ptrarray = g_ptr_array_new ();
1319         }
1320
1321         return r;
1322 }
1323
1324 static ESExpResult *
1325 search_get_received_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s)
1326 {
1327         ESExpResult *r;
1328
1329         r(printf("executing get-received-date\n"));
1330
1331         /* are we inside a match-all? */
1332         if (s->current) {
1333                 r = e_sexp_result_new(f, ESEXP_RES_INT);
1334
1335                 r->value.number = camel_message_info_date_received(s->current);
1336         } else {
1337                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1338                 r->value.ptrarray = g_ptr_array_new ();
1339         }
1340
1341         return r;
1342 }
1343
1344 static ESExpResult *
1345 search_get_current_date(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s)
1346 {
1347         ESExpResult *r;
1348
1349         r(printf("executing get-current-date\n"));
1350
1351         r = e_sexp_result_new(f, ESEXP_RES_INT);
1352         r->value.number = time (NULL);
1353         return r;
1354 }
1355
1356 static ESExpResult *
1357 search_get_size (struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *s)
1358 {
1359         ESExpResult *r;
1360
1361         r(printf("executing get-size\n"));
1362
1363         /* are we inside a match-all? */
1364         if (s->current) {
1365                 r = e_sexp_result_new (f, ESEXP_RES_INT);
1366                 r->value.number = camel_message_info_size(s->current) / 1024;
1367         } else {
1368                 r = e_sexp_result_new (f, ESEXP_RES_ARRAY_PTR);
1369                 r->value.ptrarray = g_ptr_array_new ();
1370         }
1371
1372         return r;
1373 }
1374
1375 static ESExpResult *
1376 search_uid(struct _ESExp *f, int argc, struct _ESExpResult **argv, CamelFolderSearch *search)
1377 {
1378         ESExpResult *r;
1379         int i;
1380
1381         r(printf("executing uid\n"));
1382
1383         /* are we inside a match-all? */
1384         if (search->current) {
1385                 int truth = FALSE;
1386                 const char *uid = camel_message_info_uid(search->current);
1387
1388                 /* performs an OR of all words */
1389                 for (i=0;i<argc && !truth;i++) {
1390                         if (argv[i]->type == ESEXP_RES_STRING
1391                             && !strcmp(uid, argv[i]->value.string)) {
1392                                 truth = TRUE;
1393                                 break;
1394                         }
1395                 }
1396                 r = e_sexp_result_new(f, ESEXP_RES_BOOL);
1397                 r->value.bool = truth;
1398         } else {
1399                 r = e_sexp_result_new(f, ESEXP_RES_ARRAY_PTR);
1400                 r->value.ptrarray = g_ptr_array_new();
1401                 for (i=0;i<argc;i++) {
1402                         if (argv[i]->type == ESEXP_RES_STRING)
1403                                 g_ptr_array_add(r->value.ptrarray, argv[i]->value.string);
1404                 }
1405         }
1406
1407         return r;
1408 }
1409
1410 static int
1411 read_uid_callback (void * ref, int ncol, char ** cols, char **name)
1412 {
1413         GPtrArray *matches;
1414
1415         matches = (GPtrArray *) ref;
1416
1417         g_ptr_array_add (matches, (GFunc) camel_pstring_strdup (cols [0]));
1418         return 0;
1419 }