/*
* $Id$
*
- * IMAP server for the Citadel/UX system
- * Copyright (C) 2000-2001 by Art Cancro and others.
+ * IMAP server for the Citadel system
+ * Copyright (C) 2000-2002 by Art Cancro and others.
* This code is released under the terms of the GNU General Public License.
*
- * WARNING: this is an incomplete implementation, still in progress. Parts of
- * it work, but it's not really usable yet from a user perspective.
- *
* WARNING: Mark Crispin is an idiot. IMAP is the most brain-damaged protocol
* you will ever have the profound lack of pleasure to encounter.
- *
*/
#include "sysdep.h"
#include <pwd.h>
#include <errno.h>
#include <sys/types.h>
-#include <sys/time.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
#include <sys/wait.h>
#include <ctype.h>
#include <string.h>
#include <limits.h>
#include "citadel.h"
#include "server.h"
-#include <time.h>
#include "sysdep_decls.h"
#include "citserver.h"
#include "support.h"
#include "config.h"
-#include "dynloader.h"
+#include "serv_extensions.h"
#include "room_ops.h"
#include "user_ops.h"
#include "policy.h"
#include "imap_store.h"
#include "imap_misc.h"
+#ifdef HAVE_OPENSSL
+#include "serv_crypto.h"
+#endif
-long SYM_IMAP;
+/* imap_rename() uses this struct containing list of rooms to rename */
+struct irl {
+ struct irl *next;
+ char irl_oldroom[ROOMNAMELEN];
+ char irl_newroom[ROOMNAMELEN];
+ int irl_newfloor;
+};
+
+/* Data which is passed between imap_rename() and imap_rename_backend() */
+struct irlparms {
+ char *oldname;
+ char *newname;
+ struct irl **irl;
+};
/*
* If there is a message ID map in memory, free it
*/
-void imap_free_msgids(void) {
+void imap_free_msgids(void)
+{
if (IMAP->msgids != NULL) {
- phree(IMAP->msgids);
+ free(IMAP->msgids);
IMAP->msgids = NULL;
IMAP->num_msgs = 0;
}
if (IMAP->flags != NULL) {
- phree(IMAP->flags);
+ free(IMAP->flags);
IMAP->flags = NULL;
}
}
+/*
+ * If there is a transmitted message in memory, free it
+ */
+void imap_free_transmitted_message(void)
+{
+ if (IMAP->transmitted_message != NULL) {
+ free(IMAP->transmitted_message);
+ IMAP->transmitted_message = NULL;
+ IMAP->transmitted_length = 0;
+ }
+}
+
+
+/*
+ * Set the \\Seen flag for messages which aren't new
+ */
+void imap_set_seen_flags(void)
+{
+ struct visit vbuf;
+ int i;
+
+ 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])) {
+ IMAP->flags[i] |= IMAP_SEEN;
+ }
+ if (is_msg_in_mset
+ (vbuf.v_answered, IMAP->msgids[i])) {
+ IMAP->flags[i] |= IMAP_ANSWERED;
+ }
+ }
+ }
+}
+
+
+
+
/*
* Back end for imap_load_msgids()
*
- * FIXME: this should be optimized by figuring out a way to allocate memory
- * once rather than doing a reallok() for each message.
+ * Optimization: instead of calling realloc() to add each message, we
+ * allocate space in the list for REALLOC_INCREMENT messages at a time. This
+ * allows the mapping to proceed much faster.
*/
-void imap_add_single_msgid(long msgnum, void *userdata) {
-
+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));
- }
- else {
- IMAP->msgids = reallok(IMAP->msgids,
- IMAP->num_msgs * sizeof(long));
+ IMAP->msgids = malloc(IMAP->num_msgs * sizeof(long)
+ * REALLOC_INCREMENT);
+ } else if (IMAP->num_msgs % REALLOC_INCREMENT == 0) {
+ IMAP->msgids = realloc(IMAP->msgids,
+ (IMAP->num_msgs +
+ REALLOC_INCREMENT) * sizeof(long));
}
if (IMAP->flags == NULL) {
- IMAP->flags = mallok(IMAP->num_msgs * sizeof(long));
- }
- else {
- IMAP->flags = reallok(IMAP->flags,
- IMAP->num_msgs * sizeof(long));
+ IMAP->flags = malloc(IMAP->num_msgs * sizeof(long)
+ * REALLOC_INCREMENT);
+ } else if (IMAP->num_msgs % REALLOC_INCREMENT == 0) {
+ IMAP->flags = realloc(IMAP->flags,
+ (IMAP->num_msgs +
+ REALLOC_INCREMENT) * sizeof(long));
}
IMAP->msgids[IMAP->num_msgs - 1] = msgnum;
IMAP->flags[IMAP->num_msgs - 1] = 0;
/*
* Set up a message ID map for the current room (folder)
*/
-void imap_load_msgids(void) {
-
+void imap_load_msgids(void)
+{
+
if (IMAP->selected == 0) {
- lprintf(5, "imap_load_msgids() can't run; no room selected\n");
+ 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, (-63), NULL, NULL,
- imap_add_single_msgid, NULL);
+ CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL,
+ imap_add_single_msgid, NULL);
- lprintf(9, "imap_load_msgids() mapped %d messages\n", IMAP->num_msgs);
+ imap_set_seen_flags();
+ lprintf(CTDL_DEBUG, "imap_load_msgids() mapped %d messages\n",
+ IMAP->num_msgs);
}
/*
* Re-scan the selected room (folder) and see if it's been changed at all
*/
-void imap_rescan_msgids(void) {
+void imap_rescan_msgids(void)
+{
int original_num_msgs = 0;
long original_highest = 0L;
- int i;
- int count;
+ int i, j;
+ int message_still_exists;
+ struct cdbdata *cdbfr;
+ long *msglist = NULL;
+ int num_msgs = 0;
+
if (IMAP->selected == 0) {
- lprintf(5, "imap_load_msgids() can't run; no room selected\n");
+ lprintf(CTDL_ERR,
+ "imap_load_msgids() can't run; no room selected\n");
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 = malloc(cdbfr->len);
+ memcpy(msglist, cdbfr->ptr, cdbfr->len);
+ num_msgs = cdbfr->len / sizeof(long);
+ cdb_free(cdbfr);
+ } else {
+ num_msgs = 0;
+ }
/*
* Check to see if any of the messages we know about have been expunged
*/
if (IMAP->num_msgs > 0)
- for (i=0; i<IMAP->num_msgs; ++i) {
+ for (i = 0; i < IMAP->num_msgs; ++i) {
+
+ message_still_exists = 0;
+ if (num_msgs > 0)
+ for (j = 0; j < num_msgs; ++j) {
+ if (msglist[j] == IMAP->msgids[i]) {
+ message_still_exists = 1;
+ }
+ }
+
+ 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.
+ */
+ --IMAP->num_msgs;
+ memcpy(&IMAP->msgids[i],
+ &IMAP->msgids[i + 1],
+ (sizeof(long) *
+ (IMAP->num_msgs - i)));
+ memcpy(&IMAP->flags[i],
+ &IMAP->flags[i + 1],
+ (sizeof(long) *
+ (IMAP->num_msgs - i)));
+
+ --i;
+ }
- count = CtdlForEachMessage(MSGS_EQ, IMAP->msgids[i],
- (-63), NULL, NULL, NULL, NULL);
-
- if (count == 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.
- */
- --IMAP->num_msgs;
- memcpy(&IMAP->msgids[i], &IMAP->msgids[i+1],
- (sizeof(long)*(IMAP->num_msgs-i)) );
- memcpy(&IMAP->flags[i], &IMAP->flags[i+1],
- (sizeof(long)*(IMAP->num_msgs-i)) );
-
- --i;
}
- }
-
/*
* Remember how many messages were here before we re-scanned.
*/
original_num_msgs = IMAP->num_msgs;
if (IMAP->num_msgs > 0) {
original_highest = IMAP->msgids[IMAP->num_msgs - 1];
- }
- else {
+ } else {
original_highest = 0L;
}
/*
* Now peruse the room for *new* messages only.
*/
- CtdlForEachMessage(MSGS_GT, original_highest, (-63), NULL, NULL,
- imap_add_single_msgid, NULL);
+ 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();
/*
* If new messages have arrived, tell the client about them.
cprintf("* %d EXISTS\r\n", IMAP->num_msgs);
}
+ if (num_msgs != 0)
+ free(msglist);
}
* This cleanup function blows away the temporary memory and files used by
* the IMAP server.
*/
-void imap_cleanup_function(void) {
+void imap_cleanup_function(void)
+{
/* Don't do this stuff if this is not a IMAP session! */
- if (CC->h_command_function != imap_command_loop) return;
+ 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();
- lprintf(9, "Finished IMAP cleanup hook\n");
+ imap_free_transmitted_message();
+
+ if (IMAP->cached_fetch != NULL) {
+ fclose(IMAP->cached_fetch);
+ IMAP->cached_fetch = NULL;
+ IMAP->cached_msgnum = (-1);
+ }
+
+ if (IMAP->cached_body != NULL) {
+ fclose(IMAP->cached_body);
+ IMAP->cached_body = NULL;
+ IMAP->cached_bodymsgnum = (-1);
+ }
+
+ lprintf(CTDL_DEBUG, "Finished IMAP cleanup hook\n");
}
/*
* Here's where our IMAP session begins its happy day.
*/
-void imap_greeting(void) {
+void imap_greeting(void)
+{
strcpy(CC->cs_clientname, "IMAP session");
CtdlAllocUserData(SYM_IMAP, sizeof(struct citimap));
IMAP->authstate = imap_as_normal;
+ IMAP->cached_fetch = NULL;
+ IMAP->cached_msgnum = (-1);
- cprintf("* OK %s Citadel/UX IMAP4rev1 server ready\r\n",
+ cprintf("* OK %s Citadel IMAP4rev1 server ready\r\n",
config.c_fqdn);
}
/*
* implements the LOGIN command (ordinary username/password login)
*/
-void imap_login(int num_parms, char *parms[]) {
+void imap_login(int num_parms, char *parms[])
+{
if (CtdlLoginExistingUser(parms[2]) == login_ok) {
if (CtdlTryPassword(parms[3]) == pass_ok) {
cprintf("%s OK login successful\r\n", parms[0]);
return;
}
- }
+ }
cprintf("%s BAD Login incorrect\r\n", parms[0]);
}
/*
* Implements the AUTHENTICATE command
*/
-void imap_authenticate(int num_parms, char *parms[]) {
+void imap_authenticate(int num_parms, char *parms[])
+{
char buf[SIZ];
if (num_parms != 3) {
- cprintf("%s BAD incorrect number of parameters\r\n", parms[0]);
+ cprintf("%s BAD incorrect number of parameters\r\n",
+ parms[0]);
+ return;
+ }
+
+ if (CC->logged_in) {
+ cprintf("%s BAD Already logged in.\r\n", parms[0]);
return;
}
if (!strcasecmp(parms[2], "LOGIN")) {
- encode_base64(buf, "Username:");
+ CtdlEncodeBase64(buf, "Username:", 9);
cprintf("+ %s\r\n", buf);
IMAP->authstate = imap_as_expecting_username;
strcpy(IMAP->authseq, parms[0]);
}
}
-void imap_auth_login_user(char *cmd) {
+void imap_auth_login_user(char *cmd)
+{
char buf[SIZ];
- decode_base64(buf, cmd);
+ CtdlDecodeBase64(buf, cmd, SIZ);
CtdlLoginExistingUser(buf);
- encode_base64(buf, "Password:");
+ CtdlEncodeBase64(buf, "Password:", 9);
cprintf("+ %s\r\n", buf);
IMAP->authstate = imap_as_expecting_password;
return;
}
-void imap_auth_login_pass(char *cmd) {
+void imap_auth_login_pass(char *cmd)
+{
char buf[SIZ];
- decode_base64(buf, cmd);
+ CtdlDecodeBase64(buf, cmd, SIZ);
if (CtdlTryPassword(buf) == pass_ok) {
- cprintf("%s OK authentication succeeded\r\n", IMAP->authseq);
- }
- else {
+ cprintf("%s OK authentication succeeded\r\n",
+ IMAP->authseq);
+ } else {
cprintf("%s NO authentication failed\r\n", IMAP->authseq);
}
IMAP->authstate = imap_as_normal;
}
-
/*
* implements the CAPABILITY command
*/
-void imap_capability(int num_parms, char *parms[]) {
- cprintf("* CAPABILITY IMAP4 IMAP4REV1 AUTH=LOGIN\r\n");
+void imap_capability(int num_parms, char *parms[])
+{
+ cprintf("* CAPABILITY IMAP4 IMAP4REV1 NAMESPACE AUTH=LOGIN");
+
+#ifdef HAVE_OPENSSL
+ cprintf(" STARTTLS");
+#endif
+
+ cprintf("\r\n");
cprintf("%s OK CAPABILITY completed\r\n", parms[0]);
}
+/*
+ * implements the STARTTLS command (Citadel API version)
+ */
+#ifdef HAVE_OPENSSL
+void imap_starttls(int num_parms, char *parms[])
+{
+ 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 SELECT command
*/
-void imap_select(int num_parms, char *parms[]) {
+void imap_select(int num_parms, char *parms[])
+{
char towhere[SIZ];
char augmented_roomname[ROOMNAMELEN];
int c = 0;
int ok = 0;
int ra = 0;
- struct quickroom QRscratch;
+ struct ctdlroom QRscratch;
int msgs, new;
int floornum;
int roomflags;
floornum = (i & 0x00ff);
roomflags = (i & 0xff00);
- /* First try a regular match */
- c = getroom(&QRscratch, towhere);
+ /* First try a regular match */
+ c = getroom(&QRscratch, towhere);
- /* Then try a mailbox name match */
- if (c != 0) {
- MailboxName(augmented_roomname, &CC->usersupp, towhere);
- c = getroom(&QRscratch, augmented_roomname);
- if (c == 0)
- strcpy(towhere, augmented_roomname);
- }
+ /* Then try a mailbox name match */
+ if (c != 0) {
+ MailboxName(augmented_roomname, sizeof augmented_roomname,
+ &CC->user, towhere);
+ c = getroom(&QRscratch, augmented_roomname);
+ if (c == 0)
+ strcpy(towhere, augmented_roomname);
+ }
/* If the room exists, check security/access */
- if (c == 0) {
- /* See if there is an existing user/room relationship */
- ra = CtdlRoomAccess(&QRscratch, &CC->usersupp);
+ if (c == 0) {
+ /* See if there is an existing user/room relationship */
+ ra = CtdlRoomAccess(&QRscratch, &CC->user);
- /* normal clients have to pass through security */
- if (ra & UA_KNOWN) {
- ok = 1;
+ /* normal clients have to pass through security */
+ if (ra & UA_KNOWN) {
+ ok = 1;
}
}
if (!ok) {
cprintf("%s NO ... no such room, or access denied\r\n",
parms[0]);
- IMAP->selected = 0;
return;
}
+ /* If we already had some other folder selected, auto-expunge it */
+ imap_do_expunge();
+
/*
* usergoto() formally takes us to the desired room, happily returning
* the number of messages and number of new messages.
*/
- usergoto(QRscratch.QRname, 0, &msgs, &new);
+ memcpy(&CC->room, &QRscratch, sizeof(struct ctdlroom));
+ usergoto(NULL, 0, 0, &msgs, &new);
IMAP->selected = 1;
if (!strcasecmp(parms[1], "EXAMINE")) {
IMAP->readonly = 1;
- }
- else {
+ } else {
IMAP->readonly = 0;
}
imap_load_msgids();
- /* FIXME ... much more info needs to be supplied here */
cprintf("* %d EXISTS\r\n", msgs);
cprintf("* %d RECENT\r\n", new);
+
+ /* 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)] "
+ "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]);
+ (IMAP->readonly ? "READ-ONLY" : "READ-WRITE"), parms[1]);
+}
+
+
+
+/*
+ * does the real work for expunge
+ */
+int imap_do_expunge(void)
+{
+ int i;
+ int num_expunged = 0;
+
+ lprintf(CTDL_DEBUG, "imap_do_expunge() called\n");
+ if (IMAP->selected == 0) {
+ return (0);
+ }
+
+ if (IMAP->num_msgs > 0)
+ for (i = 0; i < IMAP->num_msgs; ++i) {
+ if (IMAP->flags[i] & IMAP_DELETED) {
+ CtdlDeleteMessages(CC->room.QRname,
+ IMAP->msgids[i], "");
+ ++num_expunged;
+ }
+ }
+
+ if (num_expunged > 0) {
+ imap_rescan_msgids();
+ }
+
+ lprintf(9, "Expunged %d messages.\n", num_expunged);
+ return (num_expunged);
}
+/*
+ * implements the EXPUNGE command syntax
+ */
+void imap_expunge(int num_parms, char *parms[])
+{
+ int num_expunged = 0;
+
+ num_expunged = imap_do_expunge();
+ cprintf("%s OK expunged %d messages.\r\n", parms[0], num_expunged);
+}
+
/*
* implements the CLOSE command
*/
-void imap_close(int num_parms, char *parms[]) {
+void imap_close(int num_parms, char *parms[])
+{
+
+ /* Yes, we always expunge on close. */
+ if (IMAP->selected) {
+ imap_do_expunge();
+ }
+
IMAP->selected = 0;
IMAP->readonly = 0;
imap_free_msgids();
}
+/*
+ * Implements the NAMESPACE command.
+ */
+void imap_namespace(int num_parms, char *parms[])
+{
+ int i;
+ struct floor *fl;
+ int floors = 0;
+ char buf[SIZ];
+
+ cprintf("* NAMESPACE ");
+
+ /* All personal folders are subordinate to INBOX. */
+ cprintf("((\"INBOX/\" \"/\")) ");
+
+ /* Other users' folders ... coming soon! FIXME */
+ cprintf("NIL ");
+
+ /* 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(" \"/\")");
+ ++floors;
+ }
+ }
+ cprintf(")");
+
+ /* Wind it up with a newline and a completion message. */
+ cprintf("\r\n");
+ cprintf("%s OK NAMESPACE completed\r\n", parms[0]);
+}
+
/*
* Used by LIST and LSUB to show the floors in the listing
*/
-void imap_list_floors(char *cmd) {
+void imap_list_floors(char *cmd, char *pattern)
+{
int i;
struct floor *fl;
- for (i=0; i<MAXFLOORS; ++i) {
+ for (i = 0; i < MAXFLOORS; ++i) {
fl = cgetfloor(i);
if (fl->f_flags & F_INUSE) {
- cprintf("* %s (\\NoSelect) \"|\" ", cmd);
- imap_strout(fl->f_name);
- cprintf("\r\n");
+ if (imap_mailbox_matches_pattern
+ (pattern, fl->f_name)) {
+ cprintf("* %s (\\NoSelect) \"/\" ", cmd);
+ imap_strout(fl->f_name);
+ cprintf("\r\n");
+ }
}
}
}
* 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 quickroom *qrbuf, void *data) {
+void imap_lsub_listroom(struct ctdlroom *qrbuf, void *data)
+{
char buf[SIZ];
int ra;
+ char *pattern;
+
+ pattern = (char *) data;
/* Only list rooms to which the user has access!! */
- ra = CtdlRoomAccess(qrbuf, &CC->usersupp);
+ ra = CtdlRoomAccess(qrbuf, &CC->user);
if (ra & UA_KNOWN) {
imap_mailboxname(buf, sizeof buf, qrbuf);
- cprintf("* LSUB () \"|\" ");
- imap_strout(buf);
- cprintf("\r\n");
+ if (imap_mailbox_matches_pattern(pattern, buf)) {
+ cprintf("* LSUB () \"/\" ");
+ imap_strout(buf);
+ cprintf("\r\n");
+ }
}
}
/*
* Implements the LSUB command
- *
- * FIXME: Handle wildcards, please.
*/
-void imap_lsub(int num_parms, char *parms[]) {
- imap_list_floors("LSUB");
- ForEachRoom(imap_lsub_listroom, NULL);
+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");
+ }
+
+ else {
+ imap_list_floors("LSUB", pattern);
+ ForEachRoom(imap_lsub_listroom, pattern);
+ }
+
cprintf("%s OK LSUB completed\r\n", parms[0]);
}
/*
* Back end for imap_list()
*/
-void imap_list_listroom(struct quickroom *qrbuf, void *data) {
+void imap_list_listroom(struct ctdlroom *qrbuf, void *data)
+{
char buf[SIZ];
int ra;
+ char *pattern;
+
+ pattern = (char *) data;
/* Only list rooms to which the user has access!! */
- ra = CtdlRoomAccess(qrbuf, &CC->usersupp);
- if ( (ra & UA_KNOWN)
- || ((ra & UA_GOTOALLOWED) && (ra & UA_ZAPPED))) {
+ ra = CtdlRoomAccess(qrbuf, &CC->user);
+ if ((ra & UA_KNOWN)
+ || ((ra & UA_GOTOALLOWED) && (ra & UA_ZAPPED))) {
imap_mailboxname(buf, sizeof buf, qrbuf);
- cprintf("* LIST () \"|\" ");
- imap_strout(buf);
- cprintf("\r\n");
+ if (imap_mailbox_matches_pattern(pattern, buf)) {
+ cprintf("* LIST () \"/\" ");
+ imap_strout(buf);
+ cprintf("\r\n");
+ }
}
}
/*
* Implements the LIST command
- *
- * FIXME: Handle wildcards, please.
*/
-void imap_list(int num_parms, char *parms[]) {
- imap_list_floors("LIST");
- ForEachRoom(imap_list_listroom, NULL);
+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("%s OK LIST completed\r\n", parms[0]);
}
* Implements the CREATE command
*
*/
-void imap_create(int num_parms, char *parms[]) {
+void imap_create(int num_parms, char *parms[])
+{
int ret;
char roomname[ROOMNAMELEN];
int floornum;
int flags;
int newroomtype;
+ 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;
+ }
+
ret = imap_roomname(roomname, sizeof roomname, parms[2]);
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 */
+ 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;
+ }
}
- else {
+
+ if (flags & IR_MAILBOX) {
+ newroomtype = 4; /* private mailbox */
+ } else {
newroomtype = 0; /* public folder */
}
- 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);
+ ret = create_room(roomname, newroomtype, "", floornum, 1, 0);
if (ret == 0) {
- cprintf("%s NO Mailbox already exists, or create failed\r\n",
- parms[0]);
- }
- else {
+ 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
*/
-int imap_grabroom(char *returned_roomname, char *foldername) {
+int imap_grabroom(char *returned_roomname, char *foldername)
+{
int ret;
char augmented_roomname[ROOMNAMELEN];
char roomname[ROOMNAMELEN];
int c;
- struct quickroom QRscratch;
+ struct ctdlroom QRscratch;
int ra;
int ok = 0;
ret = imap_roomname(roomname, sizeof roomname, foldername);
if (ret < 0) {
- return(1);
+ return (1);
}
- /* First try a regular match */
- c = getroom(&QRscratch, roomname);
+ /* First try a regular match */
+ c = getroom(&QRscratch, roomname);
- /* Then try a mailbox name match */
- if (c != 0) {
- MailboxName(augmented_roomname, &CC->usersupp, roomname);
- c = getroom(&QRscratch, augmented_roomname);
- if (c == 0)
- strcpy(roomname, augmented_roomname);
- }
+ /* Then try a mailbox name match */
+ if (c != 0) {
+ MailboxName(augmented_roomname, sizeof augmented_roomname,
+ &CC->user, roomname);
+ c = getroom(&QRscratch, augmented_roomname);
+ if (c == 0)
+ strcpy(roomname, augmented_roomname);
+ }
/* If the room exists, check security/access */
- if (c == 0) {
- /* See if there is an existing user/room relationship */
- ra = CtdlRoomAccess(&QRscratch, &CC->usersupp);
+ if (c == 0) {
+ /* See if there is an existing user/room relationship */
+ ra = CtdlRoomAccess(&QRscratch, &CC->user);
- /* normal clients have to pass through security */
- if (ra & UA_KNOWN) {
- ok = 1;
+ /* normal clients have to pass through security */
+ if (ra & UA_KNOWN) {
+ ok = 1;
}
}
/* Fail here if no such room */
if (!ok) {
strcpy(returned_roomname, "");
- return(1);
- }
- else {
+ return (2);
+ } else {
strcpy(returned_roomname, QRscratch.QRname);
- return(0);
+ return (0);
}
}
* Implements the STATUS command (sort of)
*
*/
-void imap_status(int num_parms, char *parms[]) {
+void imap_status(int num_parms, char *parms[])
+{
int ret;
char roomname[ROOMNAMELEN];
char buf[SIZ];
- struct quickroom QRscratch;
char savedroom[ROOMNAMELEN];
int msgs, new;
ret = imap_grabroom(roomname, parms[2]);
if (ret != 0) {
- cprintf("%s NO Invalid mailbox name or location, or access denied\r\n",
- parms[0]);
+ cprintf
+ ("%s NO Invalid mailbox name or location, or access denied\r\n",
+ parms[0]);
return;
}
* folder is selected, save its name so we can return there!!!!!)
*/
if (IMAP->selected) {
- strcpy(savedroom, CC->quickroom.QRname);
+ strcpy(savedroom, CC->room.QRname);
}
- usergoto(roomname, 0, &msgs, &new);
+ usergoto(roomname, 0, 0, &msgs, &new);
/*
* Tell the client what it wants to know. In fact, tell it *more* than
* it wants to know. We happily IGnore the supplied status data item
* names and simply spew all possible data items. It's far easier to
* code and probably saves us some processing time too.
- *
- * FIXME we need to implement RECENT and UNSEEN eventually...
*/
-
- imap_mailboxname(buf, sizeof buf, &QRscratch);
+ imap_mailboxname(buf, sizeof buf, &CC->room);
cprintf("* STATUS ");
imap_strout(buf);
- cprintf(" (MESSAGES %d RECENT 0 UIDNEXT %ld "
- "UIDVALIDITY 0 UNSEEN 0)\r\n",
- msgs,
- CitControl.MMhighest + 1
- );
+ cprintf(" (MESSAGES %d ", msgs);
+ cprintf("RECENT 0 "); /* FIXME we need to implement this */
+ cprintf("UIDNEXT %ld ", CitControl.MMhighest + 1);
+ cprintf("UNSEEN %d)\r\n", new);
/*
* If another folder is selected, go back to that room so we can resume
* our happy day without violent explosions.
*/
if (IMAP->selected) {
- usergoto(savedroom, 0, &msgs, &new);
+ usergoto(savedroom, 0, 0, &msgs, &new);
}
/*
+/*
+ * Implements the SUBSCRIBE command
+ *
+ */
+void imap_subscribe(int num_parms, char *parms[])
+{
+ int ret;
+ char roomname[ROOMNAMELEN];
+ char savedroom[ROOMNAMELEN];
+ int msgs, new;
+
+ ret = imap_grabroom(roomname, parms[2]);
+ if (ret != 0) {
+ cprintf
+ ("%s NO Invalid mailbox name or location, or access denied\r\n",
+ parms[0]);
+ return;
+ }
+
+ /*
+ * usergoto() formally takes us to the desired room, which has the side
+ * effect of marking the room as not-zapped ... exactly the effect
+ * we're looking for.
+ */
+ if (IMAP->selected) {
+ strcpy(savedroom, CC->room.QRname);
+ }
+ usergoto(roomname, 0, 0, &msgs, &new);
+
+ /*
+ * If another folder is selected, go back to that room so we can resume
+ * our happy day without violent explosions.
+ */
+ if (IMAP->selected) {
+ usergoto(savedroom, 0, 0, &msgs, &new);
+ }
+
+ cprintf("%s OK SUBSCRIBE completed\r\n", parms[0]);
+}
+
+
+/*
+ * Implements the UNSUBSCRIBE command
+ *
+ */
+void imap_unsubscribe(int num_parms, char *parms[])
+{
+ int ret;
+ char roomname[ROOMNAMELEN];
+ char savedroom[ROOMNAMELEN];
+ int msgs, new;
+
+ ret = imap_grabroom(roomname, parms[2]);
+ if (ret != 0) {
+ cprintf
+ ("%s NO Invalid mailbox name or location, or access denied\r\n",
+ parms[0]);
+ return;
+ }
+
+ /*
+ * usergoto() formally takes us to the desired room.
+ */
+ if (IMAP->selected) {
+ strcpy(savedroom, CC->room.QRname);
+ }
+ usergoto(roomname, 0, 0, &msgs, &new);
+
+ /*
+ * Now make the API call to zap the room
+ */
+ if (CtdlForgetThisRoom() == 0) {
+ cprintf("%s OK UNSUBSCRIBE completed\r\n", parms[0]);
+ } else {
+ cprintf
+ ("%s NO You may not unsubscribe from this folder.\r\n",
+ parms[0]);
+ }
+
+ /*
+ * If another folder is selected, go back to that room so we can resume
+ * our happy day without violent explosions.
+ */
+ if (IMAP->selected) {
+ usergoto(savedroom, 0, 0, &msgs, &new);
+ }
+}
+
+
+
+/*
+ * Implements the DELETE command
+ *
+ */
+void imap_delete(int num_parms, char *parms[])
+{
+ int ret;
+ char roomname[ROOMNAMELEN];
+ char savedroom[ROOMNAMELEN];
+ int msgs, new;
+
+ ret = imap_grabroom(roomname, parms[2]);
+ if (ret != 0) {
+ cprintf("%s NO Invalid mailbox name, or access denied\r\n",
+ parms[0]);
+ return;
+ }
+
+ /*
+ * usergoto() formally takes us to the desired room, happily returning
+ * the number of messages and number of new messages. (If another
+ * folder is selected, save its name so we can return there!!!!!)
+ */
+ if (IMAP->selected) {
+ strcpy(savedroom, CC->room.QRname);
+ }
+ usergoto(roomname, 0, 0, &msgs, &new);
+
+ /*
+ * Now delete the room.
+ */
+ if (CtdlDoIHavePermissionToDeleteThisRoom(&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]);
+ }
+
+ /*
+ * If another folder is selected, go back to that room so we can resume
+ * our happy day without violent explosions.
+ */
+ if (IMAP->selected) {
+ usergoto(savedroom, 0, 0, &msgs, &new);
+ }
+}
+
+
+/*
+ * Back end function for imap_rename()
+ */
+void imap_rename_backend(struct ctdlroom *qrbuf, void *data)
+{
+ char foldername[SIZ];
+ char newfoldername[SIZ];
+ char newroomname[ROOMNAMELEN];
+ int newfloor = 0;
+ struct irl *irlp = NULL; /* scratch pointer */
+ struct irlparms *irlparms;
+
+ irlparms = (struct irlparms *) data;
+ imap_mailboxname(foldername, sizeof foldername, qrbuf);
+
+ /* Rename subfolders */
+ if ((!strncasecmp(foldername, irlparms->oldname,
+ strlen(irlparms->oldname))
+ && (foldername[strlen(irlparms->oldname)] == '/'))) {
+
+ sprintf(newfoldername, "%s/%s",
+ irlparms->newname,
+ &foldername[strlen(irlparms->oldname) + 1]
+ );
+
+ newfloor = imap_roomname(newroomname,
+ sizeof newroomname,
+ newfoldername) & 0xFF;
+
+ irlp = (struct irl *) malloc(sizeof(struct irl));
+ strcpy(irlp->irl_newroom, newroomname);
+ strcpy(irlp->irl_oldroom, qrbuf->QRname);
+ irlp->irl_newfloor = newfloor;
+ irlp->next = *(irlparms->irl);
+ *(irlparms->irl) = irlp;
+ }
+}
+
+
+/*
+ * Implements the RENAME command
+ *
+ */
+void imap_rename(int num_parms, char *parms[])
+{
+ char old_room[ROOMNAMELEN];
+ char new_room[ROOMNAMELEN];
+ int oldr, newr;
+ int new_floor;
+ int r;
+ struct irl *irl = NULL; /* the list */
+ struct irl *irlp = NULL; /* scratch pointer */
+ struct irlparms irlparms;
+
+ if (strchr(parms[3], '\\') != NULL) {
+ cprintf("%s NO Invalid character in folder name\r\n",
+ parms[0]);
+ return;
+ }
+
+ oldr = imap_roomname(old_room, sizeof old_room, parms[2]);
+ newr = imap_roomname(new_room, sizeof new_room, parms[3]);
+ new_floor = (newr & 0xFF);
+
+ r = CtdlRenameRoom(old_room, new_room, new_floor);
+
+ if (r == crr_room_not_found) {
+ cprintf("%s NO Could not locate this folder\r\n",
+ parms[0]);
+ return;
+ }
+ if (r == crr_already_exists) {
+ cprintf("%s '%s' already exists.\r\n", parms[0], parms[2]);
+ return;
+ }
+ if (r == crr_noneditable) {
+ cprintf("%s This folder is not editable.\r\n", parms[0]);
+ return;
+ }
+ if (r == crr_invalid_floor) {
+ cprintf("%s Folder root does not exist.\r\n", parms[0]);
+ return;
+ }
+ if (r == crr_access_denied) {
+ cprintf("%s You do not have permission to edit "
+ "this folder.\r\n", parms[0]);
+ return;
+ }
+ if (r != crr_ok) {
+ cprintf("%s NO Rename failed - undefined error %d\r\n",
+ parms[0], r);
+ return;
+ }
+
+
+ /* If this is the INBOX, then RFC2060 says we have to just move the
+ * contents. In a Citadel environment it's easier to rename the room
+ * (already did that) and create a new inbox.
+ */
+ if (!strcasecmp(parms[2], "INBOX")) {
+ create_room(MAILROOM, 4, "", 0, 1, 0);
+ }
+
+ /* Otherwise, do the subfolders. Build a list of rooms to rename... */
+ else {
+ irlparms.oldname = parms[2];
+ irlparms.newname = parms[3];
+ irlparms.irl = &irl;
+ ForEachRoom(imap_rename_backend, (void *) &irlparms);
+
+ /* ... and now rename them. */
+ while (irl != NULL) {
+ r = CtdlRenameRoom(irl->irl_oldroom,
+ irl->irl_newroom,
+ irl->irl_newfloor);
+ if (r != crr_ok) {
+ /* FIXME handle error returns better */
+ lprintf(CTDL_ERR, "CtdlRenameRoom() error %d\n",
+ r);
+ }
+ irlp = irl;
+ irl = irl->next;
+ free(irlp);
+ }
+ }
+
+ cprintf("%s OK RENAME completed\r\n", parms[0]);
+}
+
+
+
/*
* Main command loop for IMAP sessions.
*/
-void imap_command_loop(void) {
+void imap_command_loop(void)
+{
char cmdbuf[SIZ];
char *parms[SIZ];
int num_parms;
time(&CC->lastcmd);
- memset(cmdbuf, 0, sizeof cmdbuf); /* Clear it, just in case */
+ 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");
+ lprintf(CTDL_ERR, "IMAP socket is broken. Ending session.\r\n");
CC->kill_me = 1;
return;
}
- lprintf(5, "citserver[%3d]: %s\r\n", CC->cs_pid, cmdbuf);
- while (strlen(cmdbuf) < 5) strcat(cmdbuf, " ");
+ lprintf(CTDL_INFO, "IMAP: %s\r\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;
- if (cmdbuf[strlen(cmdbuf)-1]=='\r') cmdbuf[strlen(cmdbuf)-1]=0;
+ if (cmdbuf[strlen(cmdbuf) - 1] == '\n')
+ cmdbuf[strlen(cmdbuf) - 1] = 0;
+ if (cmdbuf[strlen(cmdbuf) - 1] == '\r')
+ cmdbuf[strlen(cmdbuf) - 1] = 0;
striplt(cmdbuf);
/* If we're in the middle of a multi-line command, handle that */
}
- /* Ok, at this point we're in normal command mode */
+ /* 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_instant_messages();
/*
* Before processing the command that was just entered... if we happen
/* The commands below may be executed in any state */
- else if ( (!strcasecmp(parms[1], "NOOP"))
- || (!strcasecmp(parms[1], "CHECK")) ) {
+ else if ((!strcasecmp(parms[1], "NOOP"))
+ || (!strcasecmp(parms[1], "CHECK"))) {
cprintf("%s OK This command successfully did nothing.\r\n",
parms[0]);
}
else if (!strcasecmp(parms[1], "LOGOUT")) {
+ 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", parms[0]);
+ cprintf("%s OK thank you for using Citadel IMAP\r\n",
+ parms[0]);
CC->kill_me = 1;
return;
}
else if (!strcasecmp(parms[1], "CAPABILITY")) {
imap_capability(num_parms, parms);
}
-
+#ifdef HAVE_OPENSSL
+ else if (!strcasecmp(parms[1], "STARTTLS")) {
+ imap_starttls(num_parms, parms);
+ }
+#endif
else if (!CC->logged_in) {
cprintf("%s BAD Not logged in.\r\n", parms[0]);
}
imap_create(num_parms, parms);
}
+ else if (!strcasecmp(parms[1], "DELETE")) {
+ imap_delete(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "RENAME")) {
+ imap_rename(num_parms, parms);
+ }
+
else if (!strcasecmp(parms[1], "STATUS")) {
imap_status(num_parms, parms);
}
+ else if (!strcasecmp(parms[1], "SUBSCRIBE")) {
+ imap_subscribe(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "UNSUBSCRIBE")) {
+ imap_unsubscribe(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "APPEND")) {
+ imap_append(num_parms, parms);
+ }
+
+ else if (!strcasecmp(parms[1], "NAMESPACE")) {
+ imap_namespace(num_parms, parms);
+ }
+
else if (IMAP->selected == 0) {
cprintf("%s BAD no folder selected\r\n", parms[0]);
}
imap_fetch(num_parms, parms);
}
- else if ( (!strcasecmp(parms[1], "UID"))
- && (!strcasecmp(parms[2], "FETCH")) ) {
+ else if ((!strcasecmp(parms[1], "UID"))
+ && (!strcasecmp(parms[2], "FETCH"))) {
imap_uidfetch(num_parms, parms);
}
imap_search(num_parms, parms);
}
- else if ( (!strcasecmp(parms[1], "UID"))
- && (!strcasecmp(parms[2], "SEARCH")) ) {
+ else if ((!strcasecmp(parms[1], "UID"))
+ && (!strcasecmp(parms[2], "SEARCH"))) {
imap_uidsearch(num_parms, parms);
}
imap_store(num_parms, parms);
}
- else if ( (!strcasecmp(parms[1], "UID"))
- && (!strcasecmp(parms[2], "STORE")) ) {
+ else if ((!strcasecmp(parms[1], "UID"))
+ && (!strcasecmp(parms[2], "STORE"))) {
imap_uidstore(num_parms, parms);
}
imap_copy(num_parms, parms);
}
- else if ( (!strcasecmp(parms[1], "UID"))
- && (!strcasecmp(parms[2], "COPY")) ) {
+ else if ((!strcasecmp(parms[1], "UID"))
+ && (!strcasecmp(parms[2], "COPY"))) {
imap_uidcopy(num_parms, parms);
}
+ else if (!strcasecmp(parms[1], "EXPUNGE")) {
+ imap_expunge(num_parms, parms);
+ }
+
else if (!strcasecmp(parms[1], "CLOSE")) {
imap_close(num_parms, parms);
}
cprintf("%s BAD command unrecognized\r\n", parms[0]);
}
+ /* If the client transmitted a message we can free it now */
+ imap_free_transmitted_message();
}
/*
- * This function is called by dynloader.c to register the IMAP module
- * with the Citadel server.
+ * This function is called to register the IMAP extension with Citadel.
*/
-char *Dynamic_Module_Init(void)
+char *serv_imap_init(void)
{
- SYM_IMAP = CtdlGetDynamicSymbol();
CtdlRegisterServiceHook(config.c_imap_port,
- NULL,
- imap_greeting,
- imap_command_loop);
+ NULL, imap_greeting, imap_command_loop, NULL);
CtdlRegisterSessionHook(imap_cleanup_function, EVT_STOP);
return "$Id$";
}
projects / citadel.git / blobdiff