/*
* $Id$
*
- * Implements the SEARCH command in IMAP.
- * This command is way too convoluted. Marc Crispin is a fscking idiot.
- *
- * NOTE: this is a partial implementation. It is NOT FINISHED.
+ * Implements IMAP's gratuitously complex SEARCH command.
*
*/
-
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include "imap_fetch.h"
#include "imap_search.h"
#include "genstamp.h"
-
+#include "serv_fulltext.h"
/*
* imap_do_search() calls imap_do_search_msg() to search an individual
* message after it has been fetched from the disk. This function returns
* nonzero if there is a match.
+ *
+ * supplied_msg MAY be used to pass a pointer to the message in memory,
+ * if for some reason it's already been loaded. If not, the message will
+ * be loaded only if one or more search criteria require it.
*/
-int imap_do_search_msg(int seq, struct CtdlMessage *msg,
+int imap_do_search_msg(int seq, struct CtdlMessage *supplied_msg,
int num_items, char **itemlist, int is_uid) {
int match = 0;
int pos = 0;
int i;
char *fieldptr;
+ struct CtdlMessage *msg = NULL;
+ int need_to_free_msg = 0;
- if (num_items == 0) return(0);
+ if (num_items == 0) {
+ return(0);
+ }
+ msg = supplied_msg;
/* Initially we start at the beginning. */
pos = 0;
}
else if (!strcasecmp(itemlist[pos], "BCC")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
fieldptr = rfc822_fetch_field(msg->cm_fields['M'], "Bcc");
if (fieldptr != NULL) {
if (bmstrstr(fieldptr, itemlist[pos+1], strncasecmp)) {
}
else if (!strcasecmp(itemlist[pos], "BEFORE")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) < 0) {
}
else if (!strcasecmp(itemlist[pos], "BODY")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (bmstrstr(msg->cm_fields['M'], itemlist[pos+1], strncasecmp)) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "CC")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
fieldptr = rfc822_fetch_field(msg->cm_fields['M'], "Cc");
if (fieldptr != NULL) {
if (bmstrstr(fieldptr, itemlist[pos+1], strncasecmp)) {
}
else if (!strcasecmp(itemlist[pos], "FROM")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (bmstrstr(msg->cm_fields['A'], itemlist[pos+1], strncasecmp)) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "LARGER")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (strlen(msg->cm_fields['M']) > atoi(itemlist[pos+1])) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "NEW")) {
- /* FIXME */
+ if ( (IMAP->flags[seq-1] & IMAP_RECENT) && (!(IMAP->flags[seq-1] & IMAP_SEEN))) {
+ match = 1;
+ }
++pos;
}
else if (!strcasecmp(itemlist[pos], "OLD")) {
- /* FIXME */
+ if (!(IMAP->flags[seq-1] & IMAP_RECENT)) {
+ match = 1;
+ }
++pos;
}
else if (!strcasecmp(itemlist[pos], "ON")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) == 0) {
}
else if (!strcasecmp(itemlist[pos], "RECENT")) {
- /* FIXME */
+ if (IMAP->flags[seq-1] & IMAP_RECENT) {
+ match = 1;
+ }
++pos;
}
}
else if (!strcasecmp(itemlist[pos], "SENTBEFORE")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) < 0) {
}
else if (!strcasecmp(itemlist[pos], "SENTON")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) == 0) {
}
else if (!strcasecmp(itemlist[pos], "SENTSINCE")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) >= 0) {
}
else if (!strcasecmp(itemlist[pos], "SINCE")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (msg->cm_fields['T'] != NULL) {
if (imap_datecmp(itemlist[pos+1],
atol(msg->cm_fields['T'])) >= 0) {
}
else if (!strcasecmp(itemlist[pos], "SMALLER")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (strlen(msg->cm_fields['M']) < atoi(itemlist[pos+1])) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "SUBJECT")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (bmstrstr(msg->cm_fields['U'], itemlist[pos+1], strncasecmp)) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "TEXT")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
for (i='A'; i<='Z'; ++i) {
if (bmstrstr(msg->cm_fields[i], itemlist[pos+1], strncasecmp)) {
match = 1;
}
else if (!strcasecmp(itemlist[pos], "TO")) {
+ if (msg == NULL) {
+ msg = CtdlFetchMessage(IMAP->msgids[seq-1], 1);
+ need_to_free_msg = 1;
+ }
if (bmstrstr(msg->cm_fields['R'], itemlist[pos+1], strncasecmp)) {
match = 1;
}
}
else if (!strcasecmp(itemlist[pos], "UID")) {
- if (is_msg_in_mset(itemlist[pos+1], IMAP->msgids[seq-1])) {
+ if (is_msg_in_sequence_set(itemlist[pos+1], IMAP->msgids[seq-1])) {
match = 1;
}
pos += 2;
/* Now here come the 'UN' criteria. Why oh why do we have to
* implement *both* the 'UN' criteria *and* the 'NOT' keyword? Why
- * can't there be *one* way to do things? Answer: because Mark
- * Crispin is an idiot.
+ * can't there be *one* way to do things? Answer: the design of
+ * IMAP suffers from gratuitous complexity.
*/
else if (!strcasecmp(itemlist[pos], "UNANSWERED")) {
}
+ if (need_to_free_msg) {
+ CtdlFreeMessage(msg);
+ }
return(match);
}
* validated and boiled down the request a bit.
*/
void imap_do_search(int num_items, char **itemlist, int is_uid) {
- int i;
- struct CtdlMessage *msg;
+ int i, j, k;
+ int fts_num_msgs = 0;
+ long *fts_msgs = NULL;
+ int is_in_list = 0;
+
+ /* If there is a BODY search criterion in the query, use our full
+ * text index to disqualify messages that don't have any chance of
+ * matching. (Only do this if the index is enabled!!)
+ */
+ if (config.c_enable_fulltext) for (i=0; i<(num_items-1); ++i) {
+ if (!strcasecmp(itemlist[i], "BODY")) {
+ ft_search(&fts_num_msgs, &fts_msgs, itemlist[i+1]);
+ if (fts_num_msgs > 0) {
+ for (j=0; j < IMAP->num_msgs; ++j) {
+ if (IMAP->flags[j] & IMAP_SELECTED) {
+ is_in_list = 0;
+ for (k=0; k<fts_num_msgs; ++k) {
+ if (IMAP->msgids[j] == fts_msgs[k]) {
+ ++is_in_list;
+ }
+ }
+ }
+ if (!is_in_list) {
+ IMAP->flags[j] = IMAP->flags[j] & ~IMAP_SELECTED;
+ }
+ }
+ }
+ else { /* no hits on the index; disqualify every message */
+ for (j=0; j < IMAP->num_msgs; ++j) {
+ IMAP->flags[j] = IMAP->flags[j] & ~IMAP_SELECTED;
+ }
+ }
+ if (fts_msgs) {
+ free(fts_msgs);
+ }
+ }
+ }
+ /* Now go through the messages and apply all search criteria. */
+ buffer_output();
cprintf("* SEARCH ");
if (IMAP->num_msgs > 0)
for (i = 0; i < IMAP->num_msgs; ++i)
- if (IMAP->flags[i] && IMAP_SELECTED) {
- msg = CtdlFetchMessage(IMAP->msgids[i]);
- if (msg != NULL) {
- if (imap_do_search_msg(i+1, msg, num_items,
- itemlist, is_uid)) {
- if (is_uid) {
- cprintf("%ld ", IMAP->msgids[i]);
- }
- else {
- cprintf("%d ", i+1);
- }
+ if (IMAP->flags[i] & IMAP_SELECTED) {
+ if (imap_do_search_msg(i+1, NULL, num_items, itemlist, is_uid)) {
+ if (is_uid) {
+ cprintf("%ld ", IMAP->msgids[i]);
+ }
+ else {
+ cprintf("%d ", i+1);
}
- CtdlFreeMessage(msg);
- }
- else {
- lprintf(CTDL_ERR, "SEARCH internal error\n");
}
}
cprintf("\r\n");
+ unbuffer_output();
}
return;
}
+ for (i = 0; i < IMAP->num_msgs; ++i) {
+ IMAP->flags[i] |= IMAP_SELECTED;
+ }
+
for (i=1; i<num_parms; ++i) {
if (imap_is_message_set(parms[i])) {
imap_pick_range(parms[i], 0);
return;
}
+ for (i = 0; i < IMAP->num_msgs; ++i) {
+ IMAP->flags[i] |= IMAP_SELECTED;
+ }
+
for (i=1; i<num_parms; ++i) {
if (imap_is_message_set(parms[i])) {
imap_pick_range(parms[i], 1);
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