/*
* $Id$
*
- * IMAP server for the Citadel/UX system
- * Copyright (C) 2000-2002 by Art Cancro and others.
+ * IMAP server for the Citadel system
+ * Copyright (C) 2000-2007 by Art Cancro and others.
* This code is released under the terms of the GNU General Public License.
*
- * WARNING: Mark Crispin is an idiot. IMAP is the most brain-damaged protocol
- * you will ever have the profound lack of pleasure to encounter.
+ * WARNING: the IMAP protocol is badly designed. No implementation of it
+ * is perfect. Indeed, with so much gratuitous complexity, *all* IMAP
+ * implementations have bugs.
*/
#include "sysdep.h"
#include <ctype.h>
#include <string.h>
#include <limits.h>
-
-#ifdef HAVE_OPENSSL
-#include <openssl/ssl.h>
-#include <openssl/err.h>
-#include <openssl/rand.h>
-#endif
-
#include "citadel.h"
#include "server.h"
-#include "sysdep_decls.h"
#include "citserver.h"
#include "support.h"
#include "config.h"
-#include "serv_extensions.h"
#include "room_ops.h"
#include "user_ops.h"
#include "policy.h"
#include "internet_addressing.h"
#include "serv_imap.h"
#include "imap_tools.h"
+#include "imap_list.h"
#include "imap_fetch.h"
#include "imap_search.h"
#include "imap_store.h"
+#include "imap_acl.h"
+#include "imap_metadata.h"
#include "imap_misc.h"
#ifdef HAVE_OPENSSL
#include "serv_crypto.h"
#endif
+
+#include "ctdl_module.h"
+
+
/* imap_rename() uses this struct containing list of rooms to rename */
struct irl {
struct irl *next;
void imap_free_msgids(void)
{
if (IMAP->msgids != NULL) {
- phree(IMAP->msgids);
+ free(IMAP->msgids);
IMAP->msgids = NULL;
IMAP->num_msgs = 0;
+ IMAP->num_alloc = 0;
}
if (IMAP->flags != NULL) {
- phree(IMAP->flags);
+ free(IMAP->flags);
IMAP->flags = NULL;
}
+ IMAP->last_mtime = (-1);
}
void imap_free_transmitted_message(void)
{
if (IMAP->transmitted_message != NULL) {
- phree(IMAP->transmitted_message);
+ free(IMAP->transmitted_message);
IMAP->transmitted_message = NULL;
IMAP->transmitted_length = 0;
}
/*
- * Set the \\Seen flag for messages which aren't new
+ * Set the \Seen, \Recent. and \Answered flags, based on the sequence
+ * sets stored in the visit record for this user/room. Note that we have
+ * to parse each sequence set manually here, because calling the utility
+ * function is_msg_in_sequence_set() over and over again is too expensive.
+ *
+ * first_msg should be set to 0 to rescan the flags for every message in the
+ * room, or some other value if we're only interested in an incremental
+ * update.
*/
-void imap_set_seen_flags(void)
+void imap_set_seen_flags(int first_msg)
{
struct visit vbuf;
int i;
+ int num_sets;
+ int s;
+ char setstr[64], lostr[64], histr[64];
+ long lo, hi;
+ if (IMAP->num_msgs < 1) return;
CtdlGetRelationship(&vbuf, &CC->user, &CC->room);
- if (IMAP->num_msgs > 0) {
- for (i = 0; i < IMAP->num_msgs; ++i) {
- if (is_msg_in_mset(vbuf.v_seen, IMAP->msgids[i])) {
+
+ for (i = first_msg; i < IMAP->num_msgs; ++i) {
+ IMAP->flags[i] = IMAP->flags[i] & ~IMAP_SEEN;
+ IMAP->flags[i] |= IMAP_RECENT;
+ IMAP->flags[i] = IMAP->flags[i] & ~IMAP_ANSWERED;
+ }
+
+ /*
+ * Do the "\Seen" flag.
+ * (Any message not "\Seen" is considered "\Recent".)
+ */
+ num_sets = num_tokens(vbuf.v_seen, ',');
+ for (s=0; s<num_sets; ++s) {
+ extract_token(setstr, vbuf.v_seen, s, ',', sizeof setstr);
+
+ extract_token(lostr, setstr, 0, ':', sizeof lostr);
+ if (num_tokens(setstr, ':') >= 2) {
+ extract_token(histr, setstr, 1, ':', sizeof histr);
+ if (!strcmp(histr, "*")) {
+ snprintf(histr, sizeof histr, "%ld", LONG_MAX);
+ }
+ }
+ else {
+ strcpy(histr, lostr);
+ }
+ lo = atol(lostr);
+ hi = atol(histr);
+
+ for (i = first_msg; i < IMAP->num_msgs; ++i) {
+ if ((IMAP->msgids[i] >= lo) && (IMAP->msgids[i] <= hi)){
IMAP->flags[i] |= IMAP_SEEN;
+ IMAP->flags[i] = IMAP->flags[i] & ~IMAP_RECENT;
}
- if (is_msg_in_mset
- (vbuf.v_answered, IMAP->msgids[i])) {
+ }
+ }
+
+ /* Do the ANSWERED flag */
+ num_sets = num_tokens(vbuf.v_answered, ',');
+ for (s=0; s<num_sets; ++s) {
+ extract_token(setstr, vbuf.v_answered, s, ',', sizeof setstr);
+
+ extract_token(lostr, setstr, 0, ':', sizeof lostr);
+ if (num_tokens(setstr, ':') >= 2) {
+ extract_token(histr, setstr, 1, ':', sizeof histr);
+ if (!strcmp(histr, "*")) {
+ snprintf(histr, sizeof histr, "%ld", LONG_MAX);
+ }
+ }
+ else {
+ strcpy(histr, lostr);
+ }
+ lo = atol(lostr);
+ hi = atol(histr);
+
+ for (i = first_msg; i < IMAP->num_msgs; ++i) {
+ if ((IMAP->msgids[i] >= lo) && (IMAP->msgids[i] <= hi)){
IMAP->flags[i] |= IMAP_ANSWERED;
}
}
}
-}
+}
void imap_add_single_msgid(long msgnum, void *userdata)
{
- IMAP->num_msgs = IMAP->num_msgs + 1;
- if (IMAP->msgids == NULL) {
- IMAP->msgids = mallok(IMAP->num_msgs * sizeof(long)
- * REALLOC_INCREMENT);
- } else if (IMAP->num_msgs % REALLOC_INCREMENT == 0) {
- IMAP->msgids = reallok(IMAP->msgids,
- (IMAP->num_msgs +
- REALLOC_INCREMENT) * sizeof(long));
- }
- if (IMAP->flags == NULL) {
- IMAP->flags = mallok(IMAP->num_msgs * sizeof(long)
- * REALLOC_INCREMENT);
- } else if (IMAP->num_msgs % REALLOC_INCREMENT == 0) {
- IMAP->flags = reallok(IMAP->flags,
- (IMAP->num_msgs +
- REALLOC_INCREMENT) * sizeof(long));
+ ++IMAP->num_msgs;
+ if (IMAP->num_msgs > IMAP->num_alloc) {
+ IMAP->num_alloc += REALLOC_INCREMENT;
+ IMAP->msgids = realloc(IMAP->msgids,
+ (IMAP->num_alloc * sizeof(long)) );
+ IMAP->flags = realloc(IMAP->flags,
+ (IMAP->num_alloc * sizeof(long)) );
}
IMAP->msgids[IMAP->num_msgs - 1] = msgnum;
IMAP->flags[IMAP->num_msgs - 1] = 0;
*/
void imap_load_msgids(void)
{
+ struct cdbdata *cdbfr;
if (IMAP->selected == 0) {
- lprintf(5,
+ lprintf(CTDL_ERR,
"imap_load_msgids() can't run; no room selected\n");
return;
}
imap_free_msgids(); /* If there was already a map, free it */
- CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL,
- imap_add_single_msgid, NULL);
+ /* Load the message list */
+ cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
+ if (cdbfr != NULL) {
+ IMAP->msgids = malloc(cdbfr->len);
+ memcpy(IMAP->msgids, cdbfr->ptr, cdbfr->len);
+ IMAP->num_msgs = cdbfr->len / sizeof(long);
+ IMAP->num_alloc = cdbfr->len / sizeof(long);
+ cdb_free(cdbfr);
+ }
+
+ if (IMAP->num_msgs) {
+ IMAP->flags = malloc(IMAP->num_alloc * sizeof(long));
+ memset(IMAP->flags, 0, (IMAP->num_alloc * sizeof(long)) );
+ }
- imap_set_seen_flags();
- lprintf(9, "imap_load_msgids() mapped %d messages\n",
- IMAP->num_msgs);
+ imap_set_seen_flags(0);
}
int original_num_msgs = 0;
long original_highest = 0L;
- int i, j;
+ int i, j, jstart;
int message_still_exists;
struct cdbdata *cdbfr;
long *msglist = NULL;
int num_msgs = 0;
-
+ int num_recent = 0;
if (IMAP->selected == 0) {
- lprintf(5,
+ lprintf(CTDL_ERR,
"imap_load_msgids() can't run; no room selected\n");
return;
}
+ /*
+ * Check to see if the room's contents have changed.
+ * If not, we can avoid this rescan.
+ */
+ getroom(&CC->room, CC->room.QRname);
+ if (IMAP->last_mtime == CC->room.QRmtime) { /* No changes! */
+ return;
+ }
+
/* Load the *current* message list from disk, so we can compare it
* to what we have in memory.
*/
cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
if (cdbfr != NULL) {
- msglist = mallok(cdbfr->len);
- memcpy(msglist, cdbfr->ptr, cdbfr->len);
+ msglist = malloc(cdbfr->len);
+ if (msglist == NULL) {
+ lprintf(CTDL_CRIT, "malloc() failed\n");
+ abort();
+ }
+ memcpy(msglist, cdbfr->ptr, (size_t)cdbfr->len);
num_msgs = cdbfr->len / sizeof(long);
cdb_free(cdbfr);
} else {
/*
* Check to see if any of the messages we know about have been expunged
*/
- if (IMAP->num_msgs > 0)
+ if (IMAP->num_msgs > 0) {
+ jstart = 0;
for (i = 0; i < IMAP->num_msgs; ++i) {
message_still_exists = 0;
- if (num_msgs > 0)
- for (j = 0; j < num_msgs; ++j) {
+ if (num_msgs > 0) {
+ for (j = jstart; j < num_msgs; ++j) {
if (msglist[j] == IMAP->msgids[i]) {
message_still_exists = 1;
+ jstart = j;
+ break;
}
}
+ }
if (message_still_exists == 0) {
cprintf("* %d EXPUNGE\r\n", i + 1);
- /* Here's some nice stupid nonsense. When a message
- * is expunged, we have to slide all the existing
- * messages up in the message array.
+ /* Here's some nice stupid nonsense. When a
+ * message is expunged, we have to slide all
+ * the existing messages up in the message
+ * array.
*/
--IMAP->num_msgs;
memcpy(&IMAP->msgids[i],
}
}
+ }
/*
* Remember how many messages were here before we re-scanned.
/*
* Now peruse the room for *new* messages only.
*/
- if (num_msgs > 0)
+ if (num_msgs > 0) {
for (j = 0; j < num_msgs; ++j) {
if (msglist[j] > original_highest) {
imap_add_single_msgid(msglist[j], NULL);
}
}
- imap_set_seen_flags();
+ }
+ imap_set_seen_flags(original_num_msgs);
/*
* If new messages have arrived, tell the client about them.
*/
if (IMAP->num_msgs > original_num_msgs) {
+
+ for (j = 0; j < num_msgs; ++j) {
+ if (IMAP->flags[j] & IMAP_RECENT) {
+ ++num_recent;
+ }
+ }
+
cprintf("* %d EXISTS\r\n", IMAP->num_msgs);
+ cprintf("* %d RECENT\r\n", num_recent);
}
- if (num_msgs != 0)
- phree(msglist);
+ if (num_msgs != 0) {
+ free(msglist);
+ }
+ IMAP->last_mtime = CC->room.QRmtime;
}
if (CC->h_command_function != imap_command_loop)
return;
- lprintf(9, "Performing IMAP cleanup hook\n");
+ /* If there is a mailbox selected, auto-expunge it. */
+ if (IMAP->selected) {
+ imap_do_expunge();
+ }
+
+ lprintf(CTDL_DEBUG, "Performing IMAP cleanup hook\n");
imap_free_msgids();
imap_free_transmitted_message();
- lprintf(9, "Finished IMAP cleanup hook\n");
+
+ if (IMAP->cached_rfc822_data != NULL) {
+ free(IMAP->cached_rfc822_data);
+ IMAP->cached_rfc822_data = NULL;
+ IMAP->cached_rfc822_msgnum = (-1);
+ IMAP->cached_rfc822_withbody = 0;
+ }
+
+ if (IMAP->cached_body != NULL) {
+ free(IMAP->cached_body);
+ IMAP->cached_body = NULL;
+ IMAP->cached_body_len = 0;
+ IMAP->cached_bodymsgnum = (-1);
+ }
+
+ free(IMAP);
+ lprintf(CTDL_DEBUG, "Finished IMAP cleanup hook\n");
+}
+
+
+/*
+ * Does the actual work of the CAPABILITY command (because we need to
+ * output this stuff in other places as well)
+ */
+void imap_output_capability_string(void) {
+ cprintf("CAPABILITY IMAP4REV1 NAMESPACE ID ACL AUTH=PLAIN AUTH=LOGIN");
+
+#ifdef HAVE_OPENSSL
+ if (!CC->redirect_ssl) cprintf(" STARTTLS");
+#endif
+
+ /* We are building a partial implementation of METADATA for the sole purpose
+ * of interoperating with the ical/vcard version of the Bynari Insight Connector.
+ * If you were expecting something else, comment out one or both of these
+ * extension advertisements.
+ */
+ cprintf(" METADATA");
+ /* cprintf(" LIST-EXTENDED"); */
+}
+
+/*
+ * implements the CAPABILITY command
+ */
+void imap_capability(int num_parms, char *parms[])
+{
+ cprintf("* ");
+ imap_output_capability_string();
+ cprintf("\r\n");
+ cprintf("%s OK CAPABILITY completed\r\n", parms[0]);
+}
+
+
+
+/*
+ * Implements the ID command (specified by RFC2971)
+ *
+ * We ignore the client-supplied information, and output a NIL response.
+ * Although this is technically a valid implementation of the extension, it
+ * is quite useless. It exists only so that we may see which clients are
+ * making use of this extension.
+ *
+ */
+void imap_id(int num_parms, char *parms[])
+{
+ cprintf("* ID NIL\r\n");
+ cprintf("%s OK ID completed\r\n", parms[0]);
}
{
strcpy(CC->cs_clientname, "IMAP session");
- CtdlAllocUserData(SYM_IMAP, sizeof(struct citimap));
+ IMAP = malloc(sizeof (struct citimap));
+ memset(IMAP, 0, sizeof(struct citimap));
IMAP->authstate = imap_as_normal;
+ IMAP->cached_rfc822_data = NULL;
+ IMAP->cached_rfc822_msgnum = (-1);
+ IMAP->cached_rfc822_withbody = 0;
- cprintf("* OK %s Citadel/UX IMAP4rev1 server ready\r\n",
- config.c_fqdn);
+ cprintf("* OK [");
+ imap_output_capability_string();
+ cprintf("] %s IMAP4rev1 %s ready\r\n", config.c_fqdn, CITADEL);
}
+/*
+ * IMAPS is just like IMAP, except it goes crypto right away.
+ */
+#ifdef HAVE_OPENSSL
+void imaps_greeting(void) {
+ CtdlStartTLS(NULL, NULL, NULL);
+ imap_greeting();
+}
+#endif
+
/*
* implements the LOGIN command (ordinary username/password login)
*/
void imap_login(int num_parms, char *parms[])
{
- if (CtdlLoginExistingUser(parms[2]) == login_ok) {
+ if (num_parms != 4) {
+ cprintf("%s BAD incorrect number of parameters\r\n", parms[0]);
+ return;
+ }
+
+ if (CtdlLoginExistingUser(NULL, parms[2]) == login_ok) {
if (CtdlTryPassword(parms[3]) == pass_ok) {
- cprintf("%s OK login successful\r\n", parms[0]);
+ cprintf("%s OK [", parms[0]);
+ imap_output_capability_string();
+ cprintf("] Hello, %s\r\n", CC->user.fullname);
return;
}
}
return;
}
+ if (!strcasecmp(parms[2], "PLAIN")) {
+ // CtdlEncodeBase64(buf, "Username:", 9);
+ // cprintf("+ %s\r\n", buf);
+ cprintf("+ \r\n");
+ IMAP->authstate = imap_as_expecting_plainauth;
+ strcpy(IMAP->authseq, parms[0]);
+ return;
+ }
+
else {
cprintf("%s NO AUTHENTICATE %s failed\r\n",
parms[0], parms[1]);
}
}
+void imap_auth_plain(char *cmd)
+{
+ char decoded_authstring[1024];
+ char ident[256];
+ char user[256];
+ char pass[256];
+ int result;
+
+ CtdlDecodeBase64(decoded_authstring, cmd, strlen(cmd));
+ safestrncpy(ident, decoded_authstring, sizeof ident);
+ safestrncpy(user, &decoded_authstring[strlen(ident) + 1], sizeof user);
+ safestrncpy(pass, &decoded_authstring[strlen(ident) + strlen(user) + 2], sizeof pass);
+
+ IMAP->authstate = imap_as_normal;
+
+ if (strlen(ident) > 0) {
+ result = CtdlLoginExistingUser(user, ident);
+ }
+ else {
+ result = CtdlLoginExistingUser(NULL, user);
+ }
+
+ if (result == login_ok) {
+ if (CtdlTryPassword(pass) == pass_ok) {
+ cprintf("%s OK authentication succeeded\r\n", IMAP->authseq);
+ return;
+ }
+ }
+ cprintf("%s NO authentication failed\r\n", IMAP->authseq);
+}
+
void imap_auth_login_user(char *cmd)
{
char buf[SIZ];
CtdlDecodeBase64(buf, cmd, SIZ);
- CtdlLoginExistingUser(buf);
+ CtdlLoginExistingUser(NULL, buf);
CtdlEncodeBase64(buf, "Password:", 9);
cprintf("+ %s\r\n", buf);
IMAP->authstate = imap_as_expecting_password;
CtdlDecodeBase64(buf, cmd, SIZ);
if (CtdlTryPassword(buf) == pass_ok) {
- cprintf("%s OK authentication succeeded\r\n",
- IMAP->authseq);
+ cprintf("%s OK authentication succeeded\r\n", IMAP->authseq);
} else {
cprintf("%s NO authentication failed\r\n", IMAP->authseq);
}
/*
- * implements the CAPABILITY command
+ * implements the STARTTLS command (Citadel API version)
*/
-void imap_capability(int num_parms, char *parms[])
-{
- cprintf("* CAPABILITY IMAP4 IMAP4REV1 AUTH=LOGIN");
-
#ifdef HAVE_OPENSSL
- cprintf(" STARTTLS");
-#endif
-
- cprintf("\r\n");
- cprintf("%s OK CAPABILITY completed\r\n", parms[0]);
-}
-
-
-/*
- * implements the STARTTLS command (lifted-from-Cyrus version)
- */
-#ifdef HAVE_OPENSSX
void imap_starttls(int num_parms, char *parms[])
{
- int sts;
- SSL_CIPHER *cipher;
- const char *tls_protocol = NULL;
- const char *tls_cipher_name = NULL;
- int tls_cipher_usebits = 0;
- int tls_cipher_algbits = 0;
- SSL *tls_conn;
- int r = 0;
-
- lprintf(9, "imap_starttls() called\n");
- tls_conn = (SSL *) SSL_new(ssl_ctx);
- if (tls_conn == NULL) {
- CC->ssl = NULL;
- r = -1;
- goto done;
- }
- SSL_clear(tls_conn);
-
- /* set the file descriptors for SSL to use */
- if (SSL_set_fd(tls_conn, CC->client_socket) == 0) {
- r = -1;
- goto done;
- }
-
- /*
- * This is the actual handshake routine. It will do all the negotiations
- * and will check the client cert etc.
- */
- SSL_set_accept_state(tls_conn);
-
- cprintf("%s OK begin TLS negotiation now\r\n", parms[0]);
- if ((sts = SSL_accept(tls_conn)) <= 0) {
- SSL_SESSION *session = SSL_get_session(tls_conn);
- if (session) {
- SSL_CTX_remove_session(ssl_ctx, session);
- }
- r = -1;
- goto done;
- }
-
- tls_protocol = SSL_get_version(tls_conn);
- cipher = SSL_get_current_cipher(tls_conn);
- tls_cipher_name = SSL_CIPHER_get_name(cipher);
- tls_cipher_usebits =
- SSL_CIPHER_get_bits(cipher, &tls_cipher_algbits);
-
- lprintf(9, "starttls: %s with cipher %s (%d/%d bits %s)\n",
- tls_protocol, tls_cipher_name,
- tls_cipher_usebits, tls_cipher_algbits,
- SSL_session_reused(tls_conn) ? "reused" : "new");
-
-done:
- if (r && tls_conn) {
- /* error; clean up */
- SSL_free(tls_conn);
- tls_conn = NULL;
- cprintf("%s NO negotiation failed\r\n", parms[0]);
- } else {
- CC->ssl = tls_conn;
- CC->redirect_ssl = 1;
- }
+ char ok_response[SIZ];
+ char nosup_response[SIZ];
+ char error_response[SIZ];
+
+ sprintf(ok_response,
+ "%s OK begin TLS negotiation now\r\n",
+ parms[0]);
+ sprintf(nosup_response,
+ "%s NO TLS not supported here\r\n",
+ parms[0]);
+ sprintf(error_response,
+ "%s BAD Internal error\r\n",
+ parms[0]);
+ CtdlStartTLS(ok_response, nosup_response, error_response);
}
-
#endif
-/*
- * implements the STARTTLS command (original version)
- */
-#ifdef HAVE_OPENSSL
-void imap_starttls(int num_parms, char *parms[])
-{
- int retval, bits, alg_bits;
- long ssloptions;
-
- if (!ssl_ctx) {
- cprintf("%s NO No SSL_CTX available\r\n", parms[0]);
- return;
- }
- if (!(CC->ssl = SSL_new(ssl_ctx))) {
- lprintf(2, "SSL_new failed: %s\n",
- ERR_reason_error_string(ERR_peek_error()));
- cprintf("%s NO SSL_new: %s\r\n", parms[0],
- ERR_reason_error_string(ERR_get_error()));
- return;
- }
-
- /* Set the options */
- ssloptions = SSL_get_options(CC->ssl);
- ssloptions |= SSL_OP_ALL; /* Work around all known bugs */
- ssloptions |= SSL_OP_NO_SSLv2;
- ssloptions |= SSL_OP_NO_SSLv3;
- SSL_set_options(CC->ssl, ssloptions);
-
- if (!(SSL_set_fd(CC->ssl, CC->client_socket))) {
- lprintf(2, "SSL_set_fd failed: %s\n",
- ERR_reason_error_string(ERR_peek_error()));
- SSL_free(CC->ssl);
- CC->ssl = NULL;
- cprintf("%s NO SSL_set_fd: %s\r\n", parms[0],
- ERR_reason_error_string(ERR_get_error()));
- return;
- }
- cprintf("%s OK begin TLS negotiation now\r\n", parms[0]);
- retval = SSL_accept(CC->ssl);
- if (retval < 1) {
- /*
- * Can't notify the client of an error here; they will
- * discover the problem at the SSL layer and should
- * revert to unencrypted communications.
- */
- long errval;
-
- errval = SSL_get_error(CC->ssl, retval);
- lprintf(2, "SSL_accept failed: %s\n",
- ERR_reason_error_string(ERR_get_error()));
- SSL_free(CC->ssl);
- CC->ssl = NULL;
- return;
- }
- BIO_set_close(CC->ssl->rbio, BIO_NOCLOSE);
- bits =
- SSL_CIPHER_get_bits(SSL_get_current_cipher(CC->ssl),
- &alg_bits);
- lprintf(3, "SSL/TLS using %s on %s (%d of %d bits)\n",
- SSL_CIPHER_get_name(SSL_get_current_cipher(CC->ssl)),
- SSL_CIPHER_get_version(SSL_get_current_cipher(CC->ssl)),
- bits, alg_bits);
- CC->redirect_ssl = 1;
-}
-#endif
-
-
-
/*
* implements the SELECT command
*/
/* If the room exists, check security/access */
if (c == 0) {
/* See if there is an existing user/room relationship */
- ra = CtdlRoomAccess(&QRscratch, &CC->user);
+ CtdlRoomAccess(&QRscratch, &CC->user, &ra, NULL);
/* normal clients have to pass through security */
if (ra & UA_KNOWN) {
if (!ok) {
cprintf("%s NO ... no such room, or access denied\r\n",
parms[0]);
- /* IMAP->selected = 0; */
return;
}
}
imap_load_msgids();
+ IMAP->last_mtime = CC->room.QRmtime;
cprintf("* %d EXISTS\r\n", msgs);
cprintf("* %d RECENT\r\n", new);
+ cprintf("* OK [UIDVALIDITY 1] UID validity status\r\n");
+ cprintf("* OK [UIDNEXT %ld] Predicted next UID\r\n", CitControl.MMhighest + 1);
+
/* Note that \Deleted is a valid flag, but not a permanent flag,
* because we don't maintain its state across sessions. Citadel
* automatically expunges mailboxes when they are de-selected.
*/
cprintf("* FLAGS (\\Deleted \\Seen \\Answered)\r\n");
- cprintf("* OK [PERMANENTFLAGS (\\Seen \\Answered)] "
+ cprintf("* OK [PERMANENTFLAGS (\\Deleted \\Seen \\Answered)] "
"permanent flags\r\n");
- cprintf("* OK [UIDVALIDITY 0] UIDs valid\r\n");
cprintf("%s OK [%s] %s completed\r\n",
parms[0],
(IMAP->readonly ? "READ-ONLY" : "READ-WRITE"), parms[1]);
/*
- * does the real work for expunge
+ * Does the real work for expunge.
*/
int imap_do_expunge(void)
{
int i;
int num_expunged = 0;
+ long *delmsgs = NULL;
+ int num_delmsgs = 0;
- lprintf(9, "imap_do_expunge() called\n");
- if (IMAP->selected == 0)
+ lprintf(CTDL_DEBUG, "imap_do_expunge() called\n");
+ if (IMAP->selected == 0) {
return (0);
+ }
- if (IMAP->num_msgs > 0)
+ if (IMAP->num_msgs > 0) {
+ delmsgs = malloc(IMAP->num_msgs * sizeof(long));
for (i = 0; i < IMAP->num_msgs; ++i) {
if (IMAP->flags[i] & IMAP_DELETED) {
- CtdlDeleteMessages(CC->room.QRname,
- IMAP->msgids[i], "");
- ++num_expunged;
- lprintf(9, "%ld ... deleted\n",
- IMAP->msgids[i]);
- } else {
- lprintf(9, "%ld ... not deleted\n",
- IMAP->msgids[i]);
+ delmsgs[num_delmsgs++] = IMAP->msgids[i];
}
}
+ if (num_delmsgs > 0) {
+ CtdlDeleteMessages(CC->room.QRname, delmsgs, num_delmsgs, "");
+ }
+ num_expunged += num_delmsgs;
+ free(delmsgs);
+ }
if (num_expunged > 0) {
imap_rescan_msgids();
}
+ lprintf(CTDL_DEBUG, "Expunged %d messages from <%s>\n",
+ num_expunged, CC->room.QRname);
return (num_expunged);
}
{
/* Yes, we always expunge on close. */
- imap_do_expunge();
+ if (IMAP->selected) {
+ imap_do_expunge();
+ }
IMAP->selected = 0;
IMAP->readonly = 0;
}
-
-
/*
- * Used by LIST and LSUB to show the floors in the listing
+ * Implements the NAMESPACE command.
*/
-void imap_list_floors(char *cmd, char *pattern)
+void imap_namespace(int num_parms, char *parms[])
{
int i;
struct floor *fl;
-
- for (i = 0; i < MAXFLOORS; ++i) {
- fl = cgetfloor(i);
- if (fl->f_flags & F_INUSE) {
- if (imap_mailbox_matches_pattern
- (pattern, fl->f_name)) {
- cprintf("* %s (\\NoSelect) \"|\" ", cmd);
- imap_strout(fl->f_name);
- cprintf("\r\n");
- }
- }
- }
-}
-
-
-
-/*
- * Back end for imap_lsub()
- *
- * IMAP "subscribed folder" is equivocated to Citadel "known rooms." This
- * may or may not be the desired behavior in the future.
- */
-void imap_lsub_listroom(struct ctdlroom *qrbuf, void *data)
-{
+ int floors = 0;
char buf[SIZ];
- int ra;
- char *pattern;
-
- pattern = (char *) data;
-
- /* Only list rooms to which the user has access!! */
- ra = CtdlRoomAccess(qrbuf, &CC->user);
- if (ra & UA_KNOWN) {
- imap_mailboxname(buf, sizeof buf, qrbuf);
- if (imap_mailbox_matches_pattern(pattern, buf)) {
- cprintf("* LSUB () \"|\" ");
- imap_strout(buf);
- cprintf("\r\n");
- }
- }
-}
-
-
-/*
- * Implements the LSUB command
- */
-void imap_lsub(int num_parms, char *parms[])
-{
- char pattern[SIZ];
- if (num_parms < 4) {
- cprintf("%s BAD arguments invalid\r\n", parms[0]);
- return;
- }
- snprintf(pattern, sizeof pattern, "%s%s", parms[2], parms[3]);
- if (strlen(parms[3]) == 0) {
- cprintf("* LIST (\\Noselect) \"|\" \"\"\r\n");
- }
+ cprintf("* NAMESPACE ");
- else {
- imap_list_floors("LSUB", pattern);
- ForEachRoom(imap_lsub_listroom, pattern);
- }
+ /* All personal folders are subordinate to INBOX. */
+ cprintf("((\"INBOX/\" \"/\")) ");
- cprintf("%s OK LSUB completed\r\n", parms[0]);
-}
-
-
-
-/*
- * Back end for imap_list()
- */
-void imap_list_listroom(struct ctdlroom *qrbuf, void *data)
-{
- char buf[SIZ];
- int ra;
- char *pattern;
+ /* Other users' folders ... coming soon! FIXME */
+ cprintf("NIL ");
- pattern = (char *) data;
-
- /* Only list rooms to which the user has access!! */
- ra = CtdlRoomAccess(qrbuf, &CC->user);
- if ((ra & UA_KNOWN)
- || ((ra & UA_GOTOALLOWED) && (ra & UA_ZAPPED))) {
- imap_mailboxname(buf, sizeof buf, qrbuf);
- if (imap_mailbox_matches_pattern(pattern, buf)) {
- cprintf("* LIST () \"|\" ");
+ /* Show all floors as shared namespaces. Neato! */
+ cprintf("(");
+ for (i = 0; i < MAXFLOORS; ++i) {
+ fl = cgetfloor(i);
+ if (fl->f_flags & F_INUSE) {
+ if (floors > 0) cprintf(" ");
+ cprintf("(");
+ sprintf(buf, "%s/", fl->f_name);
imap_strout(buf);
- cprintf("\r\n");
+ cprintf(" \"/\")");
+ ++floors;
}
}
-}
-
-
-/*
- * Implements the LIST command
- */
-void imap_list(int num_parms, char *parms[])
-{
- char pattern[SIZ];
- if (num_parms < 4) {
- cprintf("%s BAD arguments invalid\r\n", parms[0]);
- return;
- }
- snprintf(pattern, sizeof pattern, "%s%s", parms[2], parms[3]);
-
- if (strlen(parms[3]) == 0) {
- cprintf("* LIST (\\Noselect) \"|\" \"\"\r\n");
- }
-
- else {
- imap_list_floors("LIST", pattern);
- ForEachRoom(imap_list_listroom, pattern);
- }
+ cprintf(")");
- cprintf("%s OK LIST completed\r\n", parms[0]);
+ /* Wind it up with a newline and a completion message. */
+ cprintf("\r\n");
+ cprintf("%s OK NAMESPACE completed\r\n", parms[0]);
}
char roomname[ROOMNAMELEN];
int floornum;
int flags;
- int newroomtype;
+ int newroomtype = 0;
+ int newroomview = 0;
if (strchr(parms[2], '\\') != NULL) {
cprintf("%s NO Invalid character in folder name\r\n",
parms[0]);
+ lprintf(CTDL_DEBUG, "invalid character in folder name\n");
return;
}
if (ret < 0) {
cprintf("%s NO Invalid mailbox name or location\r\n",
parms[0]);
+ lprintf(CTDL_DEBUG, "invalid mailbox name or location\n");
return;
}
floornum = (ret & 0x00ff); /* lower 8 bits = floor number */
flags = (ret & 0xff00); /* upper 8 bits = flags */
if (flags & IR_MAILBOX) {
- newroomtype = 4; /* private mailbox */
+ if (strncasecmp(parms[2], "INBOX/", 6)) {
+ cprintf("%s NO Personal folders must be created under INBOX\r\n", parms[0]);
+ lprintf(CTDL_DEBUG, "not subordinate to inbox\n");
+ return;
+ }
+ }
+
+ if (flags & IR_MAILBOX) {
+ newroomtype = 4; /* private mailbox */
+ newroomview = VIEW_MAILBOX;
} else {
- newroomtype = 0; /* public folder */
+ newroomtype = 0; /* public folder */
+ newroomview = VIEW_BBS;
}
- lprintf(7, "Create new room <%s> on floor <%d> with type <%d>\n",
+ lprintf(CTDL_INFO, "Create new room <%s> on floor <%d> with type <%d>\n",
roomname, floornum, newroomtype);
- ret = create_room(roomname, newroomtype, "", floornum, 1, 0);
+ ret = create_room(roomname, newroomtype, "", floornum, 1, 0, newroomview);
if (ret == 0) {
- cprintf
- ("%s NO Mailbox already exists, or create failed\r\n",
- parms[0]);
+ /*** DO NOT CHANGE THIS ERROR MESSAGE IN ANY WAY! BYNARI CONNECTOR DEPENDS ON IT! ***/
+ cprintf("%s NO Mailbox already exists, or create failed\r\n", parms[0]);
} else {
cprintf("%s OK CREATE completed\r\n", parms[0]);
}
+ lprintf(CTDL_DEBUG, "imap_create() completed\n");
}
/*
- * Locate a room by its IMAP folder name, and check access to it
+ * Locate a room by its IMAP folder name, and check access to it.
+ * If zapped_ok is nonzero, we can also look for the room in the zapped list.
*/
-int imap_grabroom(char *returned_roomname, char *foldername)
+int imap_grabroom(char *returned_roomname, char *foldername, int zapped_ok)
{
int ret;
char augmented_roomname[ROOMNAMELEN];
/* If the room exists, check security/access */
if (c == 0) {
/* See if there is an existing user/room relationship */
- ra = CtdlRoomAccess(&QRscratch, &CC->user);
+ CtdlRoomAccess(&QRscratch, &CC->user, &ra, NULL);
/* normal clients have to pass through security */
if (ra & UA_KNOWN) {
ok = 1;
}
+ if ((zapped_ok) && (ra & UA_ZAPPED)) {
+ ok = 1;
+ }
}
/* Fail here if no such room */
char savedroom[ROOMNAMELEN];
int msgs, new;
- ret = imap_grabroom(roomname, parms[2]);
+ ret = imap_grabroom(roomname, parms[2], 0);
if (ret != 0) {
cprintf
("%s NO Invalid mailbox name or location, or access denied\r\n",
cprintf("* STATUS ");
imap_strout(buf);
cprintf(" (MESSAGES %d ", msgs);
- cprintf("RECENT 0 "); /* FIXME we need to implement this */
+ cprintf("RECENT %d ", new); /* Initially, new==recent */
cprintf("UIDNEXT %ld ", CitControl.MMhighest + 1);
cprintf("UNSEEN %d)\r\n", new);
char savedroom[ROOMNAMELEN];
int msgs, new;
- ret = imap_grabroom(roomname, parms[2]);
+ ret = imap_grabroom(roomname, parms[2], 1);
if (ret != 0) {
- cprintf
- ("%s NO Invalid mailbox name or location, or access denied\r\n",
- parms[0]);
+ cprintf(
+ "%s NO Error %d: invalid mailbox name or location, or access denied\r\n",
+ parms[0],
+ ret
+ );
return;
}
char savedroom[ROOMNAMELEN];
int msgs, new;
- ret = imap_grabroom(roomname, parms[2]);
+ ret = imap_grabroom(roomname, parms[2], 0);
if (ret != 0) {
cprintf
("%s NO Invalid mailbox name or location, or access denied\r\n",
char savedroom[ROOMNAMELEN];
int msgs, new;
- ret = imap_grabroom(roomname, parms[2]);
+ ret = imap_grabroom(roomname, parms[2], 1);
if (ret != 0) {
cprintf("%s NO Invalid mailbox name, or access denied\r\n",
parms[0]);
* Now delete the room.
*/
if (CtdlDoIHavePermissionToDeleteThisRoom(&CC->room)) {
+ schedule_room_for_deletion(&CC->room);
cprintf("%s OK DELETE completed\r\n", parms[0]);
- delete_room(&CC->room);
} else {
cprintf("%s NO Can't delete this folder.\r\n", parms[0]);
}
/* Rename subfolders */
if ((!strncasecmp(foldername, irlparms->oldname,
strlen(irlparms->oldname))
- && (foldername[strlen(irlparms->oldname)] == '|'))) {
+ && (foldername[strlen(irlparms->oldname)] == '/'))) {
- sprintf(newfoldername, "%s|%s",
+ sprintf(newfoldername, "%s/%s",
irlparms->newname,
&foldername[strlen(irlparms->oldname) + 1]
);
sizeof newroomname,
newfoldername) & 0xFF;
- irlp = (struct irl *) mallok(sizeof(struct irl));
+ irlp = (struct irl *) malloc(sizeof(struct irl));
strcpy(irlp->irl_newroom, newroomname);
strcpy(irlp->irl_oldroom, qrbuf->QRname);
irlp->irl_newfloor = newfloor;
* (already did that) and create a new inbox.
*/
if (!strcasecmp(parms[2], "INBOX")) {
- create_room(MAILROOM, 4, "", 0, 1, 0);
+ create_room(MAILROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
}
/* Otherwise, do the subfolders. Build a list of rooms to rename... */
irl->irl_newfloor);
if (r != crr_ok) {
/* FIXME handle error returns better */
- lprintf(5, "CtdlRenameRoom() error %d\n",
- r);
+ lprintf(CTDL_ERR, "CtdlRenameRoom() error %d\n", r);
}
irlp = irl;
irl = irl->next;
- phree(irlp);
+ free(irlp);
}
}
char cmdbuf[SIZ];
char *parms[SIZ];
int num_parms;
+ struct timeval tv1, tv2;
+ suseconds_t total_time = 0;
- time(&CC->lastcmd);
+ gettimeofday(&tv1, NULL);
+ CC->lastcmd = time(NULL);
memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
- if (client_gets(cmdbuf) < 1) {
- lprintf(3, "IMAP socket is broken. Ending session.\r\n");
+ flush_output();
+ if (client_getln(cmdbuf, sizeof cmdbuf) < 1) {
+ lprintf(CTDL_ERR, "Client disconnected: ending session.\r\n");
CC->kill_me = 1;
return;
}
- lprintf(5, "IMAP: %s\r\n", cmdbuf);
+ if (IMAP->authstate == imap_as_expecting_password) {
+ lprintf(CTDL_INFO, "IMAP: <password>\n");
+ }
+ else if (IMAP->authstate == imap_as_expecting_plainauth) {
+ lprintf(CTDL_INFO, "IMAP: <plain_auth>\n");
+ }
+ else if (bmstrcasestr(cmdbuf, " LOGIN ")) {
+ lprintf(CTDL_INFO, "IMAP: LOGIN...\n");
+ }
+ else {
+ lprintf(CTDL_INFO, "IMAP: %s\n", cmdbuf);
+ }
+
while (strlen(cmdbuf) < 5)
strcat(cmdbuf, " ");
-
/* strip off l/t whitespace and CRLF */
if (cmdbuf[strlen(cmdbuf) - 1] == '\n')
cmdbuf[strlen(cmdbuf) - 1] = 0;
imap_auth_login_user(cmdbuf);
return;
}
+ if (IMAP->authstate == imap_as_expecting_plainauth) {
+ imap_auth_plain(cmdbuf);
+ return;
+ }
if (IMAP->authstate == imap_as_expecting_password) {
imap_auth_login_pass(cmdbuf);
return;
}
-
/* Ok, at this point we're in normal command mode. The first thing
* we do is print any incoming pages (yeah! we really do!)
*/
- imap_print_express_messages();
+ imap_print_instant_messages();
/*
* Before processing the command that was just entered... if we happen
else if ((!strcasecmp(parms[1], "NOOP"))
|| (!strcasecmp(parms[1], "CHECK"))) {
- cprintf("%s OK This command successfully did nothing.\r\n",
+ cprintf("%s OK No operation\r\n",
parms[0]);
}
+ else if (!strcasecmp(parms[1], "ID")) {
+ imap_id(num_parms, parms);
+ }
+
+
else if (!strcasecmp(parms[1], "LOGOUT")) {
- imap_do_expunge(); /* yes, we auto-expunge */
+ if (IMAP->selected) {
+ imap_do_expunge(); /* yes, we auto-expunge */
+ }
cprintf("* BYE %s logging out\r\n", config.c_fqdn);
- cprintf("%s OK thank you for using Citadel IMAP\r\n",
+ cprintf("%s OK Citadel IMAP session ended.\r\n",
parms[0]);
CC->kill_me = 1;
return;
imap_starttls(num_parms, parms);
}
#endif
-
else if (!CC->logged_in) {
cprintf("%s BAD Not logged in.\r\n", parms[0]);
}
}
else if (!strcasecmp(parms[1], "LSUB")) {
- imap_lsub(num_parms, parms);
+ imap_list(num_parms, parms);
}
else if (!strcasecmp(parms[1], "LIST")) {
imap_append(num_parms, parms);
}
+ else if (!strcasecmp(parms[1], "NAMESPACE")) {
+ imap_namespace(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "SETACL")) {
+ imap_setacl(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "DELETEACL")) {
+ imap_deleteacl(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "GETACL")) {
+ imap_getacl(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "LISTRIGHTS")) {
+ imap_listrights(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "MYRIGHTS")) {
+ imap_myrights(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "GETMETADATA")) {
+ imap_getmetadata(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "SETMETADATA")) {
+ imap_setmetadata(num_parms, parms);
+ }
+
else if (IMAP->selected == 0) {
cprintf("%s BAD no folder selected\r\n", parms[0]);
}
/* If the client transmitted a message we can free it now */
imap_free_transmitted_message();
-}
+ gettimeofday(&tv2, NULL);
+ total_time = (tv2.tv_usec + (tv2.tv_sec * 1000000)) - (tv1.tv_usec + (tv1.tv_sec * 1000000));
+ lprintf(CTDL_DEBUG, "IMAP command completed in %ld.%ld seconds\n",
+ (total_time / 1000000),
+ (total_time % 1000000)
+ );
+}
/*
* This function is called to register the IMAP extension with Citadel.
*/
-char *serv_imap_init(void)
+CTDL_MODULE_INIT(imap)
{
CtdlRegisterServiceHook(config.c_imap_port,
- NULL, imap_greeting, imap_command_loop);
+ NULL, imap_greeting, imap_command_loop, NULL);
+#ifdef HAVE_OPENSSL
+ CtdlRegisterServiceHook(config.c_imaps_port,
+ NULL, imaps_greeting, imap_command_loop, NULL);
+#endif
CtdlRegisterSessionHook(imap_cleanup_function, EVT_STOP);
+
+ /* return our Subversion id for the Log */
return "$Id$";
}
projects / citadel.git / blobdiff