+++ /dev/null
-/*
- * IMAP server for the Citadel system
- *
- * Copyright (C) 2000-2021 by Art Cancro and others.
- * This code is released under the terms of the GNU General Public License.
- *
- * WARNING: the IMAP protocol is badly designed. No implementation of it
- * is perfect. Indeed, with so much gratuitous complexity, *all* IMAP
- * implementations have bugs.
- *
- * This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <pwd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <time.h>
-#include <sys/wait.h>
-#include <ctype.h>
-#include <string.h>
-#include <limits.h>
-#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "citserver.h"
-#include "support.h"
-#include "config.h"
-#include "user_ops.h"
-#include "database.h"
-#include "msgbase.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"
-
-#include "ctdl_module.h"
-HashList *ImapCmds = NULL;
-void registerImapCMD(const char *First, long FLen,
- const char *Second, long SLen,
- imap_handler H,
- int Flags)
-{
- imap_handler_hook *h;
-
- h = (imap_handler_hook*) malloc(sizeof(imap_handler_hook));
- memset(h, 0, sizeof(imap_handler_hook));
-
- h->Flags = Flags;
- h->h = H;
- if (SLen == 0) {
- Put(ImapCmds, First, FLen, h, NULL);
- }
- else {
- char CMD[SIZ];
- memcpy(CMD, First, FLen);
- memcpy(CMD+FLen, Second, SLen);
- CMD[FLen+SLen] = '\0';
- Put(ImapCmds, CMD, FLen + SLen, h, NULL);
- }
-}
-
-
-const imap_handler_hook *imap_lookup(int num_parms, ConstStr *Params)
-{
- struct CitContext *CCC = CC;
- void *v;
- citimap *Imap = CCCIMAP;
-
- if (num_parms < 1)
- return NULL;
-
- /* we abuse the Reply-buffer for uppercasing... */
- StrBufPlain(Imap->Reply, CKEY(Params[1]));
- StrBufUpCase(Imap->Reply);
-
- syslog(LOG_DEBUG, "---- Looking up [%s] -----", ChrPtr(Imap->Reply));
- if (GetHash(ImapCmds, SKEY(Imap->Reply), &v))
- {
- syslog(LOG_DEBUG, "Found.");
- FlushStrBuf(Imap->Reply);
- return (imap_handler_hook *) v;
- }
-
- if (num_parms == 1)
- {
- syslog(LOG_DEBUG, "NOT Found.");
- FlushStrBuf(Imap->Reply);
- return NULL;
- }
-
- syslog(LOG_DEBUG, "---- Looking up [%s] -----", ChrPtr(Imap->Reply));
- StrBufAppendBufPlain(Imap->Reply, CKEY(Params[2]), 0);
- StrBufUpCase(Imap->Reply);
- if (GetHash(ImapCmds, SKEY(Imap->Reply), &v))
- {
- syslog(LOG_DEBUG, "Found.");
- FlushStrBuf(Imap->Reply);
- return (imap_handler_hook *) v;
- }
- syslog(LOG_DEBUG, "NOT Found.");
- FlushStrBuf(Imap->Reply);
- return NULL;
-}
-
-/* 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() */
-typedef struct __irlparms {
- const char *oldname;
- long oldnamelen;
- const char *newname;
- long newnamelen;
- struct irl **irl;
-}irlparms;
-
-
-/*
- * If there is a message ID map in memory, free it
- */
-void imap_free_msgids(void)
-{
- citimap *Imap = IMAP;
- if (Imap->msgids != NULL) {
- free(Imap->msgids);
- Imap->msgids = NULL;
- Imap->num_msgs = 0;
- Imap->num_alloc = 0;
- }
- if (Imap->flags != NULL) {
- free(Imap->flags);
- Imap->flags = NULL;
- }
- Imap->last_mtime = (-1);
-}
-
-
-/*
- * If there is a transmitted message in memory, free it
- */
-void imap_free_transmitted_message(void)
-{
- FreeStrBuf(&IMAP->TransmittedMessage);
-}
-
-
-/*
- * 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(int first_msg)
-{
- citimap *Imap = IMAP;
- 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);
-
- 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;
- }
- }
- }
-
- /* 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;
- }
- }
- }
-
-}
-
-
-
-/*
- * Back end for imap_load_msgids()
- *
- * 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)
-{
- citimap *Imap = IMAP;
-
- ++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(unsigned int)) );
- }
- 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)
-{
- struct CitContext *CCC = CC;
- struct cdbdata *cdbfr;
- citimap *Imap = CCCIMAP;
-
- if (Imap->selected == 0) {
- syslog(LOG_ERR, "imap_load_msgids() can't run; no room selected");
- return;
- }
-
- imap_free_msgids(); /* If there was already a map, free it */
-
- /* Load the message list */
- cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->room.QRnumber, sizeof(long));
- if (cdbfr != NULL) {
- Imap->msgids = (long*)cdbfr->ptr;
- Imap->num_msgs = cdbfr->len / sizeof(long);
- Imap->num_alloc = cdbfr->len / sizeof(long);
- cdbfr->ptr = NULL;
- cdbfr->len = 0;
- cdb_free(cdbfr);
- }
-
- if (Imap->num_msgs) {
- Imap->flags = malloc(Imap->num_alloc * sizeof(unsigned int));
- memset(Imap->flags, 0, (Imap->num_alloc * sizeof(unsigned int)) );
- }
-
- imap_set_seen_flags(0);
-}
-
-
-/*
- * Re-scan the selected room (folder) and see if it's been changed at all
- */
-void imap_rescan_msgids(void)
-{
- struct CitContext *CCC = CC;
- citimap *Imap = CCCIMAP;
- int original_num_msgs = 0;
- long original_highest = 0L;
- 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) {
- syslog(LOG_ERR, "imap_load_msgids() can't run; no room selected");
- return;
- }
-
- /*
- * Check to see if the room's contents have changed.
- * If not, we can avoid this rescan.
- */
- CtdlGetRoom(&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 = (long*)cdbfr->ptr;
- cdbfr->ptr = NULL;
- num_msgs = cdbfr->len / sizeof(long);
- cdbfr->len = 0;
- 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) {
- jstart = 0;
- for (i = 0; i < Imap->num_msgs; ++i) {
-
- message_still_exists = 0;
- 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) {
- IAPrintf("* %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;
- memmove(&Imap->msgids[i],
- &Imap->msgids[i + 1],
- (sizeof(long) *
- (Imap->num_msgs - i)));
- memmove(&Imap->flags[i],
- &Imap->flags[i + 1],
- (sizeof(unsigned int) *
- (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 {
- original_highest = 0L;
- }
-
- /*
- * Now peruse the room for *new* messages only.
- * This logic is probably the cause of Bug # 368
- * [ http://bugzilla.citadel.org/show_bug.cgi?id=368 ]
- */
- 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(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;
- }
- }
-
- IAPrintf("* %d EXISTS\r\n", Imap->num_msgs);
- IAPrintf("* %d RECENT\r\n", num_recent);
- }
-
- if (msglist != NULL) {
- free(msglist);
- }
- Imap->last_mtime = CC->room.QRmtime;
-}
-
-
-/*
- * This cleanup function blows away the temporary memory and files used by
- * the IMAP server.
- */
-void imap_cleanup_function(void)
-{
- struct CitContext *CCC = CC;
- citimap *Imap = CCCIMAP;
-
- /* Don't do this stuff if this is not a Imap session! */
- if (CC->h_command_function != imap_command_loop)
- return;
-
- /* If there is a mailbox selected, auto-expunge it. */
- if (Imap->selected) {
- imap_do_expunge();
- }
-
- syslog(LOG_DEBUG, "Performing IMAP cleanup hook");
- imap_free_msgids();
- imap_free_transmitted_message();
-
- if (Imap->cached_rfc822 != NULL) {
- FreeStrBuf(&Imap->cached_rfc822);
- 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);
- }
- FreeStrBuf(&Imap->Cmd.CmdBuf);
- FreeStrBuf(&Imap->Reply);
- if (Imap->Cmd.Params != NULL) free(Imap->Cmd.Params);
- free(Imap);
- syslog(LOG_DEBUG, "Finished IMAP cleanup hook");
-}
-
-
-/*
- * 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) {
- IAPuts("CAPABILITY IMAP4REV1 NAMESPACE ID AUTH=PLAIN AUTH=LOGIN UIDPLUS");
-
-#ifdef HAVE_OPENSSL
- if (!CC->redirect_ssl) IAPuts(" STARTTLS");
-#endif
-
-#ifndef DISABLE_IMAP_ACL
- IAPuts(" ACL");
-#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.
- * It is not a full RFC5464 implementation, but it should refuse non-Bynari
- * metadata in a compatible and graceful way.
- */
- IAPuts(" METADATA");
-
- /*
- * LIST-EXTENDED was originally going to be required by the METADATA extension.
- * It was mercifully removed prior to the finalization of RFC5464. We started
- * implementing this but stopped when we learned that it would not be needed.
- * If you uncomment this declaration you are responsible for writing a lot of new
- * code.
- *
- * IAPuts(" LIST-EXTENDED")
- */
-}
-
-
-/*
- * implements the CAPABILITY command
- */
-void imap_capability(int num_parms, ConstStr *Params)
-{
- IAPuts("* ");
- imap_output_capability_string();
- IAPuts("\r\n");
- IReply("OK CAPABILITY completed");
-}
-
-
-/*
- * 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, ConstStr *Params)
-{
- IAPuts("* ID NIL\r\n");
- IReply("OK ID completed");
-}
-
-
-/*
- * Here's where our IMAP session begins its happy day.
- */
-void imap_greeting(void)
-{
- citimap *Imap;
- CitContext *CCC = CC;
-
- strcpy(CCC->cs_clientname, "IMAP session");
- CCC->session_specific_data = malloc(sizeof(citimap));
- Imap = (citimap *)CCC->session_specific_data;
- memset(Imap, 0, sizeof(citimap));
- Imap->authstate = imap_as_normal;
- Imap->cached_rfc822_msgnum = (-1);
- Imap->cached_rfc822_withbody = 0;
- Imap->Reply = NewStrBufPlain(NULL, SIZ * 10); /* 40k */
-
- if (CCC->nologin)
- {
- IAPuts("* BYE; Server busy, try later\r\n");
- CCC->kill_me = KILLME_NOLOGIN;
- IUnbuffer();
- return;
- }
-
- IAPuts("* OK [");
- imap_output_capability_string();
- IAPrintf("] %s IMAP4rev1 %s ready\r\n", CtdlGetConfigStr("c_fqdn"), CITADEL);
- IUnbuffer();
-}
-
-
-/*
- * IMAPS is just like IMAP, except it goes crypto right away.
- */
-void imaps_greeting(void) {
- CtdlModuleStartCryptoMsgs(NULL, NULL, NULL);
-#ifdef HAVE_OPENSSL
- if (!CC->redirect_ssl) CC->kill_me = KILLME_NO_CRYPTO; /* kill session if no crypto */
-#endif
- imap_greeting();
-}
-
-
-/*
- * implements the LOGIN command (ordinary username/password login)
- */
-void imap_login(int num_parms, ConstStr *Params)
-{
-
- switch (num_parms) {
- case 3:
- if (Params[2].Key[0] == '{') {
- IAPuts("+ go ahead\r\n");
- IMAP->authstate = imap_as_expecting_multilineusername;
- strcpy(IMAP->authseq, Params[0].Key);
- return;
- }
- else {
- IReply("BAD incorrect number of parameters");
- return;
- }
- case 4:
- if (CtdlLoginExistingUser(Params[2].Key) == login_ok) {
- if (CtdlTryPassword(Params[3].Key, Params[3].len) == pass_ok) {
- /* hm, thats not doable by IReply :-( */
- IAPrintf("%s OK [", Params[0].Key);
- imap_output_capability_string();
- IAPrintf("] Hello, %s\r\n", CC->user.fullname);
- return;
- }
- else
- {
- IReplyPrintf("NO AUTHENTICATE %s failed", Params[3].Key);
- return;
- }
- }
-
- IReply("BAD Login incorrect");
- return;
- default:
- IReply("BAD incorrect number of parameters");
- return;
- }
-
-}
-
-
-/*
- * Implements the AUTHENTICATE command
- */
-void imap_authenticate(int num_parms, ConstStr *Params)
-{
- char UsrBuf[SIZ];
-
- if (num_parms != 3) {
- IReply("BAD incorrect number of parameters");
- return;
- }
-
- if (CC->logged_in) {
- IReply("BAD Already logged in.");
- return;
- }
-
- if (!strcasecmp(Params[2].Key, "LOGIN")) {
- size_t len = CtdlEncodeBase64(UsrBuf, "Username:", 9, 0);
- if (UsrBuf[len - 1] == '\n') {
- UsrBuf[len - 1] = '\0';
- }
-
- IAPrintf("+ %s\r\n", UsrBuf);
- IMAP->authstate = imap_as_expecting_username;
- strcpy(IMAP->authseq, Params[0].Key);
- return;
- }
-
- if (!strcasecmp(Params[2].Key, "PLAIN")) {
- // size_t len = CtdlEncodeBase64(UsrBuf, "Username:", 9, 0);
- // if (UsrBuf[len - 1] == '\n') {
- // UsrBuf[len - 1] = '\0';
- // }
- // IAPuts("+ %s\r\n", UsrBuf);
- IAPuts("+ \r\n");
- IMAP->authstate = imap_as_expecting_plainauth;
- strcpy(IMAP->authseq, Params[0].Key);
- return;
- }
-
- else {
- IReplyPrintf("NO AUTHENTICATE %s failed",
- Params[1].Key);
- }
-}
-
-
-void imap_auth_plain(void)
-{
- citimap *Imap = IMAP;
- const char *decoded_authstring;
- char ident[256] = "";
- char user[256] = "";
- char pass[256] = "";
- int result;
- long decoded_len;
- long len = 0;
- long plen = 0;
-
- memset(pass, 0, sizeof(pass));
- decoded_len = StrBufDecodeBase64(Imap->Cmd.CmdBuf);
-
- if (decoded_len > 0)
- {
- decoded_authstring = ChrPtr(Imap->Cmd.CmdBuf);
-
- len = safestrncpy(ident, decoded_authstring, sizeof ident);
-
- decoded_len -= len - 1;
- decoded_authstring += len + 1;
-
- if (decoded_len > 0)
- {
- len = safestrncpy(user, decoded_authstring, sizeof user);
-
- decoded_authstring += len + 1;
- decoded_len -= len - 1;
- }
-
- if (decoded_len > 0)
- {
- plen = safestrncpy(pass, decoded_authstring, sizeof pass);
-
- if (plen < 0)
- plen = sizeof(pass) - 1;
- }
- }
- Imap->authstate = imap_as_normal;
-
- if (!IsEmptyStr(ident)) {
- result = CtdlLoginExistingUser(ident);
- }
- else {
- result = CtdlLoginExistingUser(user);
- }
-
- if (result == login_ok) {
- if (CtdlTryPassword(pass, plen) == pass_ok) {
- IAPrintf("%s OK authentication succeeded\r\n", Imap->authseq);
- return;
- }
- }
- IAPrintf("%s NO authentication failed\r\n", Imap->authseq);
-}
-
-
-void imap_auth_login_user(long state)
-{
- char PWBuf[SIZ];
- citimap *Imap = IMAP;
-
- switch (state){
- case imap_as_expecting_username:
- StrBufDecodeBase64(Imap->Cmd.CmdBuf);
- CtdlLoginExistingUser(ChrPtr(Imap->Cmd.CmdBuf));
- size_t len = CtdlEncodeBase64(PWBuf, "Password:", 9, 0);
- if (PWBuf[len - 1] == '\n') {
- PWBuf[len - 1] = '\0';
- }
-
- IAPrintf("+ %s\r\n", PWBuf);
-
- Imap->authstate = imap_as_expecting_password;
- return;
- case imap_as_expecting_multilineusername:
- extract_token(PWBuf, ChrPtr(Imap->Cmd.CmdBuf), 1, ' ', sizeof(PWBuf));
- CtdlLoginExistingUser(ChrPtr(Imap->Cmd.CmdBuf));
- IAPuts("+ go ahead\r\n");
- Imap->authstate = imap_as_expecting_multilinepassword;
- return;
- }
-}
-
-
-void imap_auth_login_pass(long state)
-{
- citimap *Imap = IMAP;
- const char *pass = NULL;
- long len = 0;
-
- switch (state) {
- default:
- case imap_as_expecting_password:
- StrBufDecodeBase64(Imap->Cmd.CmdBuf);
- pass = ChrPtr(Imap->Cmd.CmdBuf);
- len = StrLength(Imap->Cmd.CmdBuf);
- break;
- case imap_as_expecting_multilinepassword:
- pass = ChrPtr(Imap->Cmd.CmdBuf);
- len = StrLength(Imap->Cmd.CmdBuf);
- break;
- }
- if (len > USERNAME_SIZE)
- StrBufCutAt(Imap->Cmd.CmdBuf, USERNAME_SIZE, NULL);
-
- if (CtdlTryPassword(pass, len) == pass_ok) {
- IAPrintf("%s OK authentication succeeded\r\n", Imap->authseq);
- } else {
- IAPrintf("%s NO authentication failed\r\n", Imap->authseq);
- }
- Imap->authstate = imap_as_normal;
- return;
-}
-
-
-/*
- * implements the STARTTLS command (Citadel API version)
- */
-void imap_starttls(int num_parms, ConstStr *Params)
-{
- char ok_response[SIZ];
- char nosup_response[SIZ];
- char error_response[SIZ];
-
- snprintf(ok_response, SIZ, "%s OK begin TLS negotiation now\r\n", Params[0].Key);
- snprintf(nosup_response, SIZ, "%s NO TLS not supported here\r\n", Params[0].Key);
- snprintf(error_response, SIZ, "%s BAD Internal error\r\n", Params[0].Key);
- CtdlModuleStartCryptoMsgs(ok_response, nosup_response, error_response);
-}
-
-
-/*
- * implements the SELECT command
- */
-void imap_select(int num_parms, ConstStr *Params)
-{
- citimap *Imap = IMAP;
- char towhere[ROOMNAMELEN];
- char augmented_roomname[ROOMNAMELEN];
- int c = 0;
- int ok = 0;
- int ra = 0;
- struct ctdlroom QRscratch;
- int msgs, new;
- int i;
-
- /* Convert the supplied folder name to a roomname */
- i = imap_roomname(towhere, sizeof towhere, Params[2].Key);
- if (i < 0) {
- IReply("NO Invalid mailbox name.");
- Imap->selected = 0;
- return;
- }
-
- /* First try a regular match */
- c = CtdlGetRoom(&QRscratch, towhere);
-
- /* Then try a mailbox name match */
- if (c != 0) {
- CtdlMailboxName(augmented_roomname, sizeof augmented_roomname, &CC->user, towhere);
- c = CtdlGetRoom(&QRscratch, augmented_roomname);
- if (c == 0) {
- safestrncpy(towhere, augmented_roomname, sizeof(towhere));
- }
- }
-
- /* If the room exists, check security/access */
- if (c == 0) {
- /* See if there is an existing user/room relationship */
- CtdlRoomAccess(&QRscratch, &CC->user, &ra, NULL);
-
- /* normal clients have to pass through security */
- if (ra & UA_KNOWN) {
- ok = 1;
- }
- }
-
- /* Fail here if no such room */
- if (!ok) {
- IReply("NO ... no such room, or access denied");
- return;
- }
-
- /* If we already had some other folder selected, auto-expunge it */
- imap_do_expunge();
-
- /*
- * CtdlUserGoto() formally takes us to the desired room, happily returning
- * the number of messages and number of new messages.
- */
- memcpy(&CC->room, &QRscratch, sizeof(struct ctdlroom));
- CtdlUserGoto(NULL, 0, 0, &msgs, &new, NULL, NULL);
- Imap->selected = 1;
-
- if (!strcasecmp(Params[1].Key, "EXAMINE")) {
- Imap->readonly = 1;
- } else {
- Imap->readonly = 0;
- }
-
- imap_load_msgids();
- Imap->last_mtime = CC->room.QRmtime;
-
- IAPrintf("* %d EXISTS\r\n", msgs);
- IAPrintf("* %d RECENT\r\n", new);
-
- IAPrintf("* OK [UIDVALIDITY %ld] UID validity status\r\n", GLOBAL_UIDVALIDITY_VALUE);
- IAPrintf("* OK [UIDNEXT %ld] Predicted next UID\r\n", CtdlGetConfigLong("MMhighest") + 1);
-
- /* Technically, \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.
- *
- * Unfortunately, omitting \Deleted as a PERMANENTFLAGS flag causes
- * some clients (particularly Thunderbird) to misbehave -- they simply
- * elect not to transmit the flag at all. So we have to advertise
- * \Deleted as a PERMANENTFLAGS flag, even though it technically isn't.
- */
- IAPuts("* FLAGS (\\Deleted \\Seen \\Answered)\r\n");
- IAPuts("* OK [PERMANENTFLAGS (\\Deleted \\Seen \\Answered)] permanent flags\r\n");
-
- IReplyPrintf("OK [%s] %s completed",
- (Imap->readonly ? "READ-ONLY" : "READ-WRITE"), Params[1].Key
- );
-}
-
-
-/*
- * Does the real work for expunge.
- */
-int imap_do_expunge(void)
-{
- struct CitContext *CCC = CC;
- citimap *Imap = CCCIMAP;
- int i;
- int num_expunged = 0;
- long *delmsgs = NULL;
- int num_delmsgs = 0;
-
- syslog(LOG_DEBUG, "imap_do_expunge() called");
- if (Imap->selected == 0) {
- return (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) {
- 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();
- }
-
- syslog(LOG_DEBUG, "Expunged %d messages from <%s>", num_expunged, CC->room.QRname);
- return (num_expunged);
-}
-
-
-/*
- * implements the EXPUNGE command syntax
- */
-void imap_expunge(int num_parms, ConstStr *Params)
-{
- int num_expunged = 0;
-
- num_expunged = imap_do_expunge();
- IReplyPrintf("OK expunged %d messages.", num_expunged);
-}
-
-
-/*
- * implements the CLOSE command
- */
-void imap_close(int num_parms, ConstStr *Params)
-{
-
- /* Yes, we always expunge on close. */
- if (IMAP->selected) {
- imap_do_expunge();
- }
-
- IMAP->selected = 0;
- IMAP->readonly = 0;
- imap_free_msgids();
- IReply("OK CLOSE completed");
-}
-
-
-/*
- * Implements the NAMESPACE command.
- */
-void imap_namespace(int num_parms, ConstStr *Params)
-{
- long len;
- int i;
- struct floor *fl;
- int floors = 0;
- char Namespace[SIZ];
-
- IAPuts("* NAMESPACE ");
-
- /* All personal folders are subordinate to INBOX. */
- IAPuts("((\"INBOX/\" \"/\")) ");
-
- /* Other users' folders ... coming soon! FIXME */
- IAPuts("NIL ");
-
- /* Show all floors as shared namespaces. Neato! */
- IAPuts("(");
- for (i = 0; i < MAXFLOORS; ++i) {
- fl = CtdlGetCachedFloor(i);
- if (fl->f_flags & F_INUSE) {
- /* if (floors > 0) IAPuts(" "); samjam says this confuses javamail */
- IAPuts("(");
- len = snprintf(Namespace, sizeof(Namespace), "%s/", fl->f_name);
- IPutStr(Namespace, len);
- IAPuts(" \"/\")");
- ++floors;
- }
- }
- IAPuts(")");
-
- /* Wind it up with a newline and a completion message. */
- IAPuts("\r\n");
- IReply("OK NAMESPACE completed");
-}
-
-
-/*
- * Implements the CREATE command
- *
- */
-void imap_create(int num_parms, ConstStr *Params)
-{
- int ret;
- char roomname[ROOMNAMELEN];
- int floornum;
- int flags;
- int newroomtype = 0;
- int newroomview = 0;
- char *notification_message = NULL;
-
- if (num_parms < 3) {
- IReply("NO A foder name must be specified");
- return;
- }
-
- if (strchr(Params[2].Key, '\\') != NULL) {
- IReply("NO Invalid character in folder name");
- syslog(LOG_ERR, "invalid character in folder name");
- return;
- }
-
- ret = imap_roomname(roomname, sizeof roomname, Params[2].Key);
- if (ret < 0) {
- IReply("NO Invalid mailbox name or location");
- syslog(LOG_ERR, "invalid mailbox name or location");
- return;
- }
- floornum = (ret & 0x00ff); /* lower 8 bits = floor number */
- flags = (ret & 0xff00); /* upper 8 bits = flags */
-
- if (flags & IR_MAILBOX) {
- if (strncasecmp(Params[2].Key, "INBOX/", 6)) {
- IReply("NO Personal folders must be created under INBOX");
- syslog(LOG_ERR, "not subordinate to inbox");
- return;
- }
- }
-
- if (flags & IR_MAILBOX) {
- newroomtype = 4; /* private mailbox */
- newroomview = VIEW_MAILBOX;
- } else {
- newroomtype = 0; /* public folder */
- newroomview = VIEW_BBS;
- }
-
- syslog(LOG_INFO, "Create new room <%s> on floor <%d> with type <%d>",
- roomname, floornum, newroomtype);
-
- ret = CtdlCreateRoom(roomname, newroomtype, "", floornum, 1, 0, newroomview);
- if (ret == 0) {
- /*** DO NOT CHANGE THIS ERROR MESSAGE IN ANY WAY! BYNARI CONNECTOR DEPENDS ON IT! ***/
- IReply("NO Mailbox already exists, or create failed");
- } else {
- IReply("OK CREATE completed");
- /* post a message in Aide> describing the new room */
- notification_message = malloc(1024);
- snprintf(notification_message, 1024,
- "A new room called \"%s\" has been created by %s%s%s%s\n",
- roomname,
- CC->user.fullname,
- ((ret & QR_MAILBOX) ? " [personal]" : ""),
- ((ret & QR_PRIVATE) ? " [private]" : ""),
- ((ret & QR_GUESSNAME) ? " [hidden]" : "")
- );
- CtdlAideMessage(notification_message, "Room Creation Message");
- free(notification_message);
- }
- syslog(LOG_DEBUG, "imap_create() completed");
-}
-
-
-/*
- * 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, const char *foldername, int zapped_ok)
-{
- int ret;
- char augmented_roomname[ROOMNAMELEN];
- char roomname[ROOMNAMELEN];
- int c;
- struct ctdlroom QRscratch;
- int ra;
- int ok = 0;
-
- ret = imap_roomname(roomname, sizeof roomname, foldername);
- if (ret < 0) {
- return (1);
- }
-
- /* First try a regular match */
- c = CtdlGetRoom(&QRscratch, roomname);
-
- /* Then try a mailbox name match */
- if (c != 0) {
- CtdlMailboxName(augmented_roomname, sizeof augmented_roomname,
- &CC->user, roomname);
- c = CtdlGetRoom(&QRscratch, augmented_roomname);
- if (c == 0)
- safestrncpy(roomname, augmented_roomname, sizeof(roomname));
- }
-
- /* If the room exists, check security/access */
- if (c == 0) {
- /* See if there is an existing user/room relationship */
- 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 */
- if (!ok) {
- strcpy(returned_roomname, "");
- return (2);
- } else {
- safestrncpy(returned_roomname, QRscratch.QRname, ROOMNAMELEN);
- return (0);
- }
-}
-
-
-/*
- * Implements the STATUS command (sort of)
- *
- */
-void imap_status(int num_parms, ConstStr *Params)
-{
- long len;
- int ret;
- char roomname[ROOMNAMELEN];
- char imaproomname[SIZ];
- char savedroom[ROOMNAMELEN];
- int msgs, new;
-
- ret = imap_grabroom(roomname, Params[2].Key, 1);
- if (ret != 0) {
- IReply("NO Invalid mailbox name or location, or access denied");
- return;
- }
-
- /*
- * CtdlUserGoto() 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);
- }
- CtdlUserGoto(roomname, 0, 0, &msgs, &new, NULL, NULL);
-
- /*
- * 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.
- */
- len = imap_mailboxname(imaproomname, sizeof imaproomname, &CC->room);
- IAPuts("* STATUS ");
- IPutStr(imaproomname, len);
- IAPrintf(" (MESSAGES %d ", msgs);
- IAPrintf("RECENT %d ", new); /* Initially, new==recent */
- IAPrintf("UIDNEXT %ld ", CtdlGetConfigLong("MMhighest") + 1);
- IAPrintf("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) {
- CtdlUserGoto(savedroom, 0, 0, &msgs, &new, NULL, NULL);
- }
-
- /*
- * Oooh, look, we're done!
- */
- IReply("OK STATUS completed");
-}
-
-
-/*
- * Implements the SUBSCRIBE command
- *
- */
-void imap_subscribe(int num_parms, ConstStr *Params)
-{
- int ret;
- char roomname[ROOMNAMELEN];
- char savedroom[ROOMNAMELEN];
- int msgs, new;
-
- ret = imap_grabroom(roomname, Params[2].Key, 1);
- if (ret != 0) {
- IReplyPrintf(
- "NO Error %d: invalid mailbox name or location, or access denied",
- ret
- );
- return;
- }
-
- /*
- * CtdlUserGoto() 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);
- }
- CtdlUserGoto(roomname, 0, 0, &msgs, &new, NULL, NULL);
-
- /*
- * If another folder is selected, go back to that room so we can resume
- * our happy day without violent explosions.
- */
- if (IMAP->selected) {
- CtdlUserGoto(savedroom, 0, 0, &msgs, &new, NULL, NULL);
- }
-
- IReply("OK SUBSCRIBE completed");
-}
-
-
-/*
- * Implements the UNSUBSCRIBE command
- *
- */
-void imap_unsubscribe(int num_parms, ConstStr *Params)
-{
- int ret;
- char roomname[ROOMNAMELEN];
- char savedroom[ROOMNAMELEN];
- int msgs, new;
-
- ret = imap_grabroom(roomname, Params[2].Key, 1);
- if (ret != 0) {
- IReply("NO Invalid mailbox name or location, or access denied");
- return;
- }
-
- /*
- * CtdlUserGoto() formally takes us to the desired room.
- */
- if (IMAP->selected) {
- strcpy(savedroom, CC->room.QRname);
- }
- CtdlUserGoto(roomname, 0, 0, &msgs, &new, NULL, NULL);
-
- /*
- * Now make the API call to zap the room
- */
- if (CtdlForgetThisRoom() == 0) {
- IReply("OK UNSUBSCRIBE completed");
- } else {
- IReply("NO You may not unsubscribe from this folder.");
- }
-
- /*
- * If another folder is selected, go back to that room so we can resume
- * our happy day without violent explosions.
- */
- if (IMAP->selected) {
- CtdlUserGoto(savedroom, 0, 0, &msgs, &new, NULL, NULL);
- }
-}
-
-
-/*
- * Implements the DELETE command
- *
- */
-void imap_delete(int num_parms, ConstStr *Params)
-{
- int ret;
- char roomname[ROOMNAMELEN];
- char savedroom[ROOMNAMELEN];
- int msgs, new;
-
- ret = imap_grabroom(roomname, Params[2].Key, 1);
- if (ret != 0) {
- IReply("NO Invalid mailbox name, or access denied");
- return;
- }
-
- /*
- * CtdlUserGoto() 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);
- }
- CtdlUserGoto(roomname, 0, 0, &msgs, &new, NULL, NULL);
-
- /*
- * Now delete the room.
- */
- if (CtdlDoIHavePermissionToDeleteThisRoom(&CC->room)) {
- CtdlScheduleRoomForDeletion(&CC->room);
- IReply("OK DELETE completed");
- } else {
- IReply("NO Can't delete this folder.");
- }
-
- /*
- * If another folder is selected, go back to that room so we can resume
- * our happy day without violent explosions.
- */
- if (IMAP->selected) {
- CtdlUserGoto(savedroom, 0, 0, &msgs, &new, NULL, NULL);
- }
-}
-
-
-/*
- * 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 */
- irlparms *myirlparms;
-
- myirlparms = (irlparms *) data;
- imap_mailboxname(foldername, sizeof foldername, qrbuf);
-
- /* Rename subfolders */
- if ((!strncasecmp(foldername, myirlparms->oldname,
- myirlparms->oldnamelen)
- && (foldername[myirlparms->oldnamelen] == '/'))) {
-
- sprintf(newfoldername, "%s/%s",
- myirlparms->newname,
- &foldername[myirlparms->oldnamelen + 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 = *(myirlparms->irl);
- *(myirlparms->irl) = irlp;
- }
-}
-
-
-/*
- * Implements the RENAME command
- *
- */
-void imap_rename(int num_parms, ConstStr *Params)
-{
- char old_room[ROOMNAMELEN];
- char new_room[ROOMNAMELEN];
- int newr;
- int new_floor;
- int r;
- struct irl *irl = NULL; /* the list */
- struct irl *irlp = NULL; /* scratch pointer */
- irlparms irlparms;
- char aidemsg[1024];
-
- if (strchr(Params[3].Key, '\\') != NULL) {
- IReply("NO Invalid character in folder name");
- return;
- }
-
- imap_roomname(old_room, sizeof old_room, Params[2].Key);
- newr = imap_roomname(new_room, sizeof new_room, Params[3].Key);
- new_floor = (newr & 0xFF);
-
- r = CtdlRenameRoom(old_room, new_room, new_floor);
-
- if (r == crr_room_not_found) {
- IReply("NO Could not locate this folder");
- return;
- }
- if (r == crr_already_exists) {
- IReplyPrintf("NO '%s' already exists.");
- return;
- }
- if (r == crr_noneditable) {
- IReply("NO This folder is not editable.");
- return;
- }
- if (r == crr_invalid_floor) {
- IReply("NO Folder root does not exist.");
- return;
- }
- if (r == crr_access_denied) {
- IReply("NO You do not have permission to edit this folder.");
- return;
- }
- if (r != crr_ok) {
- IReplyPrintf("NO Rename failed - undefined error %d", 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(Params[2].Key, "INBOX")) {
- CtdlCreateRoom(MAILROOM, 4, "", 0, 1, 0, VIEW_MAILBOX);
- }
-
- /* Otherwise, do the subfolders. Build a list of rooms to rename... */
- else {
- irlparms.oldname = Params[2].Key;
- irlparms.oldnamelen = Params[2].len;
- irlparms.newname = Params[3].Key;
- irlparms.newnamelen = Params[3].len;
- irlparms.irl = &irl;
- CtdlForEachRoom(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 */
- syslog(LOG_ERR, "CtdlRenameRoom() error %d", r);
- }
- irlp = irl;
- irl = irl->next;
- free(irlp);
- }
- }
-
- snprintf(aidemsg, sizeof aidemsg, "IMAP folder \"%s\" renamed to \"%s\" by %s\n",
- Params[2].Key,
- Params[3].Key,
- CC->curr_user
- );
- CtdlAideMessage(aidemsg, "IMAP folder rename");
-
- IReply("OK RENAME completed");
-}
-
-
-/*
- * Main command loop for IMAP sessions.
- */
-void imap_command_loop(void)
-{
- struct CitContext *CCC = CC;
- struct timeval tv1, tv2;
- suseconds_t total_time = 0;
- citimap *Imap;
- const char *pchs, *pche;
- const imap_handler_hook *h;
-
- gettimeofday(&tv1, NULL);
- CCC->lastcmd = time(NULL);
- Imap = CCCIMAP;
-
- flush_output();
- if (Imap->Cmd.CmdBuf == NULL)
- Imap->Cmd.CmdBuf = NewStrBufPlain(NULL, SIZ);
- else
- FlushStrBuf(Imap->Cmd.CmdBuf);
-
- if (CtdlClientGetLine(Imap->Cmd.CmdBuf) < 1) {
- syslog(LOG_ERR, "client disconnected: ending session.");
- CC->kill_me = KILLME_CLIENT_DISCONNECTED;
- return;
- }
-
- if (Imap->authstate == imap_as_expecting_password) {
- syslog(LOG_INFO, "<password>");
- }
- else if (Imap->authstate == imap_as_expecting_plainauth) {
- syslog(LOG_INFO, "<plain_auth>");
- }
- else if ((Imap->authstate == imap_as_expecting_multilineusername) ||
- cbmstrcasestr(ChrPtr(Imap->Cmd.CmdBuf), " LOGIN ")) {
- syslog(LOG_INFO, "LOGIN...");
- }
- else {
- syslog(LOG_DEBUG, "%s", ChrPtr(Imap->Cmd.CmdBuf));
- }
-
- pchs = ChrPtr(Imap->Cmd.CmdBuf);
- pche = pchs + StrLength(Imap->Cmd.CmdBuf);
-
- while ((pche > pchs) &&
- ((*pche == '\n') ||
- (*pche == '\r')))
- {
- pche --;
- StrBufCutRight(Imap->Cmd.CmdBuf, 1);
- }
- StrBufTrim(Imap->Cmd.CmdBuf);
-
- /* If we're in the middle of a multi-line command, handle that */
- switch (Imap->authstate){
- case imap_as_expecting_username:
- imap_auth_login_user(imap_as_expecting_username);
- IUnbuffer();
- return;
- case imap_as_expecting_multilineusername:
- imap_auth_login_user(imap_as_expecting_multilineusername);
- IUnbuffer();
- return;
- case imap_as_expecting_plainauth:
- imap_auth_plain();
- IUnbuffer();
- return;
- case imap_as_expecting_password:
- imap_auth_login_pass(imap_as_expecting_password);
- IUnbuffer();
- return;
- case imap_as_expecting_multilinepassword:
- imap_auth_login_pass(imap_as_expecting_multilinepassword);
- IUnbuffer();
- return;
- default:
- break;
- }
-
- /* Ok, at this point we're in normal command mode.
- * If the command just submitted does not contain a literal, we
- * might think about delivering some untagged stuff...
- */
-
- /* Grab the tag, command, and parameters. */
- imap_parameterize(&Imap->Cmd);
-#if 0
-/* debug output the parsed vector */
- {
- int i;
- syslog(LOG_DEBUG, "----- %ld params", Imap->Cmd.num_parms);
-
- for (i=0; i < Imap->Cmd.num_parms; i++) {
- if (Imap->Cmd.Params[i].len != strlen(Imap->Cmd.Params[i].Key))
- syslog(LOG_DEBUG, "*********** %ld != %ld : %s",
- Imap->Cmd.Params[i].len,
- strlen(Imap->Cmd.Params[i].Key),
- Imap->Cmd.Params[i].Key);
- else
- syslog(LOG_DEBUG, "%ld : %s",
- Imap->Cmd.Params[i].len,
- Imap->Cmd.Params[i].Key);
- }}
-#endif
-
- /* Now for the command set. */
- h = imap_lookup(Imap->Cmd.num_parms, Imap->Cmd.Params);
-
- if (h == NULL)
- {
- IReply("BAD command unrecognized");
- goto BAIL;
- }
-
- /* RFC3501 says that we cannot output untagged data during these commands */
- if ((h->Flags & I_FLAG_UNTAGGED) == 0) {
-
- /* we can put any additional untagged stuff right here in the future */
-
- /*
- * Before processing the command that was just entered... if we happen
- * to have a folder selected, we'd like to rescan that folder for new
- * messages, and for deletions/changes of existing messages. This
- * could probably be optimized better with some deep thought...
- */
- if (Imap->selected) {
- imap_rescan_msgids();
- }
- }
-
- /* does our command require a logged-in state */
- if ((!CC->logged_in) && ((h->Flags & I_FLAG_LOGGED_IN) != 0)) {
- IReply("BAD Not logged in.");
- goto BAIL;
- }
-
- /* does our command require the SELECT state on a mailbox */
- if ((Imap->selected == 0) && ((h->Flags & I_FLAG_SELECT) != 0)){
- IReply("BAD no folder selected");
- goto BAIL;
- }
- h->h(Imap->Cmd.num_parms, Imap->Cmd.Params);
-
- /* If the client transmitted a message we can free it now */
-
-BAIL:
- IUnbuffer();
-
- imap_free_transmitted_message();
-
- gettimeofday(&tv2, NULL);
- total_time = (tv2.tv_usec + (tv2.tv_sec * 1000000)) - (tv1.tv_usec + (tv1.tv_sec * 1000000));
- syslog(LOG_DEBUG, "IMAP command completed in %ld.%ld seconds",
- (total_time / 1000000),
- (total_time % 1000000)
- );
-}
-
-void imap_noop (int num_parms, ConstStr *Params)
-{
- IReply("OK No operation");
-}
-
-void imap_logout(int num_parms, ConstStr *Params)
-{
- if (IMAP->selected) {
- imap_do_expunge(); /* yes, we auto-expunge at logout */
- }
- IAPrintf("* BYE %s logging out\r\n", CtdlGetConfigStr("c_fqdn"));
- IReply("OK Citadel IMAP session ended.");
- CC->kill_me = KILLME_CLIENT_LOGGED_OUT;
- return;
-}
-
-const char *CitadelServiceIMAP="IMAP";
-const char *CitadelServiceIMAPS="IMAPS";
-
-/*
- * This function is called to register the IMAP extension with Citadel.
- */
-CTDL_MODULE_INIT(imap)
-{
- if (ImapCmds == NULL)
- ImapCmds = NewHash(1, NULL);
-
- RegisterImapCMD("NOOP", "", imap_noop, I_FLAG_NONE);
- RegisterImapCMD("CHECK", "", imap_noop, I_FLAG_NONE);
- RegisterImapCMD("ID", "", imap_id, I_FLAG_NONE);
- RegisterImapCMD("LOGOUT", "", imap_logout, I_FLAG_NONE);
- RegisterImapCMD("LOGIN", "", imap_login, I_FLAG_NONE);
- RegisterImapCMD("AUTHENTICATE", "", imap_authenticate, I_FLAG_NONE);
- RegisterImapCMD("CAPABILITY", "", imap_capability, I_FLAG_NONE);
-#ifdef HAVE_OPENSSL
- RegisterImapCMD("STARTTLS", "", imap_starttls, I_FLAG_NONE);
-#endif
-
- /* The commans below require a logged-in state */
- RegisterImapCMD("SELECT", "", imap_select, I_FLAG_LOGGED_IN);
- RegisterImapCMD("EXAMINE", "", imap_select, I_FLAG_LOGGED_IN);
- RegisterImapCMD("LSUB", "", imap_list, I_FLAG_LOGGED_IN);
- RegisterImapCMD("LIST", "", imap_list, I_FLAG_LOGGED_IN);
- RegisterImapCMD("CREATE", "", imap_create, I_FLAG_LOGGED_IN);
- RegisterImapCMD("DELETE", "", imap_delete, I_FLAG_LOGGED_IN);
- RegisterImapCMD("RENAME", "", imap_rename, I_FLAG_LOGGED_IN);
- RegisterImapCMD("STATUS", "", imap_status, I_FLAG_LOGGED_IN);
- RegisterImapCMD("SUBSCRIBE", "", imap_subscribe, I_FLAG_LOGGED_IN);
- RegisterImapCMD("UNSUBSCRIBE", "", imap_unsubscribe, I_FLAG_LOGGED_IN);
- RegisterImapCMD("APPEND", "", imap_append, I_FLAG_LOGGED_IN);
- RegisterImapCMD("NAMESPACE", "", imap_namespace, I_FLAG_LOGGED_IN);
- RegisterImapCMD("SETACL", "", imap_setacl, I_FLAG_LOGGED_IN);
- RegisterImapCMD("DELETEACL", "", imap_deleteacl, I_FLAG_LOGGED_IN);
- RegisterImapCMD("GETACL", "", imap_getacl, I_FLAG_LOGGED_IN);
- RegisterImapCMD("LISTRIGHTS", "", imap_listrights, I_FLAG_LOGGED_IN);
- RegisterImapCMD("MYRIGHTS", "", imap_myrights, I_FLAG_LOGGED_IN);
- RegisterImapCMD("GETMETADATA", "", imap_getmetadata, I_FLAG_LOGGED_IN);
- RegisterImapCMD("SETMETADATA", "", imap_setmetadata, I_FLAG_LOGGED_IN);
-
- /* The commands below require the SELECT state on a mailbox */
- RegisterImapCMD("FETCH", "", imap_fetch, I_FLAG_LOGGED_IN | I_FLAG_SELECT | I_FLAG_UNTAGGED);
- RegisterImapCMD("UID", "FETCH", imap_uidfetch, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("SEARCH", "", imap_search, I_FLAG_LOGGED_IN | I_FLAG_SELECT | I_FLAG_UNTAGGED);
- RegisterImapCMD("UID", "SEARCH", imap_uidsearch, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("STORE", "", imap_store, I_FLAG_LOGGED_IN | I_FLAG_SELECT | I_FLAG_UNTAGGED);
- RegisterImapCMD("UID", "STORE", imap_uidstore, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("COPY", "", imap_copy, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("UID", "COPY", imap_uidcopy, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("EXPUNGE", "", imap_expunge, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("UID", "EXPUNGE", imap_expunge, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
- RegisterImapCMD("CLOSE", "", imap_close, I_FLAG_LOGGED_IN | I_FLAG_SELECT);
-
- if (!threading)
- {
- CtdlRegisterServiceHook(CtdlGetConfigInt("c_imap_port"),
- NULL, imap_greeting, imap_command_loop, NULL, CitadelServiceIMAP);
-#ifdef HAVE_OPENSSL
- CtdlRegisterServiceHook(CtdlGetConfigInt("c_imaps_port"),
- NULL, imaps_greeting, imap_command_loop, NULL, CitadelServiceIMAPS);
-#endif
- CtdlRegisterSessionHook(imap_cleanup_function, EVT_STOP, PRIO_STOP + 30);
- }
-
- /* return our module name for the log */
- return "imap";
-}
projects / citadel.git / blobdiff