* These functions implement the portions of AUTHMODE_LDAP and AUTHMODE_LDAP_AD which
* actually speak to the LDAP server.
*
- * Copyright (c) 2010 by Art Cancro and the citadel.org development team.
+ * Copyright (c) 2011-2017 by the citadel.org development team.
*
- * This program is free 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 open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
*
* 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
int ctdl_require_ldap_version = 3;
-#include "sysdep.h"
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
+#define _GNU_SOURCE // Needed to suppress warning about vasprintf() when running on Linux/Linux
#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <pwd.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-
-#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 <string.h>
-#include <limits.h>
#include <libcitadel.h>
-#include "auth.h"
-#include "citadel.h"
-#include "server.h"
-#include "database.h"
-#include "sysdep_decls.h"
-#include "support.h"
-#include "room_ops.h"
-#include "file_ops.h"
-#include "control.h"
-#include "msgbase.h"
-#include "config.h"
#include "citserver.h"
-#include "citadel_dirs.h"
-#include "genstamp.h"
-#include "threads.h"
#include "citadel_ldap.h"
#include "ctdl_module.h"
#include "user_ops.h"
+#include "internet_addressing.h"
+#include "config.h"
#ifdef HAVE_LDAP
-#define LDAP_DEPRECATED 1 /* Suppress libldap's warning that we are using deprecated API calls */
+#define LDAP_DEPRECATED 1 // Suppress libldap's warning that we are using deprecated API calls
#include <ldap.h>
+
+/*
+ * Utility function, supply a search result and get back the fullname (display name, common name, etc) from the first result
+ */
+void derive_fullname_from_ldap_result(char *fullname, int fullname_size, LDAP *ldserver, LDAPMessage *search_result)
+{
+ char **values;
+
+ if (fullname == NULL) return;
+
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ values = ldap_get_values(ldserver, search_result, "displayName");
+ if (values) {
+ if (values[0]) {
+ if (fullname) safestrncpy(fullname, values[0], fullname_size);
+ syslog(LOG_DEBUG, "ldap: displayName = %s", values[0]);
+ }
+ ldap_value_free(values);
+ }
+ }
+ else {
+ values = ldap_get_values(ldserver, search_result, "cn");
+ if (values) {
+ if (values[0]) {
+ if (fullname) safestrncpy(fullname, values[0], fullname_size);
+ syslog(LOG_DEBUG, "ldap: cn = %s", values[0]);
+ }
+ ldap_value_free(values);
+ }
+ }
+}
+
+
+/*
+ * Utility function, supply a search result and get back the uid from the first result
+ */
+uid_t derive_uid_from_ldap(LDAP *ldserver, LDAPMessage *entry)
+{
+ char **values;
+ uid_t uid = (-1);
+
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ values = ldap_get_values(ldserver, entry, "objectGUID"); // AD schema: uid hashed from objectGUID
+ if (values) {
+ if (values[0]) {
+ uid = abs(HashLittle(values[0], strlen(values[0])));
+ }
+ ldap_value_free(values);
+ }
+ }
+ else {
+ values = ldap_get_values(ldserver, entry, "uidNumber"); // POSIX schema: uid = uidNumber
+ if (values) {
+ if (values[0]) {
+ uid = atoi(values[0]);
+ }
+ ldap_value_free(values);
+ }
+ }
+
+ return(uid);
+}
+
+
+/*
+ * Wrapper function for ldap_initialize() that consistently fills in the correct fields
+ */
+int ctdl_ldap_initialize(LDAP **ld) {
+
+ char server_url[256];
+ int ret;
+
+ snprintf(server_url, sizeof server_url, "ldap://%s:%d", CtdlGetConfigStr("c_ldap_host"), CtdlGetConfigInt("c_ldap_port"));
+ ret = ldap_initialize(ld, server_url);
+ if (ret != LDAP_SUCCESS) {
+ syslog(LOG_ERR, "ldap: could not connect to %s : %m", server_url);
+ *ld = NULL;
+ return(errno);
+ }
+
+ return(ret);
+}
+
+
+/*
+ * Look up a user in the directory to see if this is an account that can be authenticated
+ */
int CtdlTryUserLDAP(char *username,
char *found_dn, int found_dn_size,
char *fullname, int fullname_size,
LDAPMessage *entry = NULL;
char searchstring[1024];
struct timeval tv;
- char **values;
char *user_dn = NULL;
if (fullname) safestrncpy(fullname, username, fullname_size);
- ldserver = ldap_init(config.c_ldap_host, config.c_ldap_port);
- if (ldserver == NULL) {
- syslog(LOG_ALERT, "LDAP: Could not connect to %s:%d : %s\n",
- config.c_ldap_host, config.c_ldap_port,
- strerror(errno)
- );
+ if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
return(errno);
}
ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
+ ldap_set_option(ldserver, LDAP_OPT_REFERRALS, (void *)LDAP_OPT_OFF);
- striplt(config.c_ldap_bind_dn);
- striplt(config.c_ldap_bind_pw);
- syslog(LOG_DEBUG, "LDAP bind DN: %s\n", config.c_ldap_bind_dn);
+ striplt(CtdlGetConfigStr("c_ldap_bind_dn"));
+ striplt(CtdlGetConfigStr("c_ldap_bind_pw"));
+ syslog(LOG_DEBUG, "ldap: bind DN: %s", CtdlGetConfigStr("c_ldap_bind_dn"));
i = ldap_simple_bind_s(ldserver,
- (!IsEmptyStr(config.c_ldap_bind_dn) ? config.c_ldap_bind_dn : NULL),
- (!IsEmptyStr(config.c_ldap_bind_pw) ? config.c_ldap_bind_pw : NULL)
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_dn")) ? CtdlGetConfigStr("c_ldap_bind_dn") : NULL),
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_pw")) ? CtdlGetConfigStr("c_ldap_bind_pw") : NULL)
);
if (i != LDAP_SUCCESS) {
- syslog(LOG_ALERT, "LDAP: Cannot bind: %s (%d)\n", ldap_err2string(i), i);
+ syslog(LOG_ERR, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
return(i);
}
tv.tv_sec = 10;
tv.tv_usec = 0;
- if (config.c_auth_mode == AUTHMODE_LDAP_AD) {
- sprintf(searchstring, "(sAMAccountName=%s)", username);
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ snprintf(searchstring, sizeof(searchstring), "(sAMAccountName=%s)", username);
}
else {
- sprintf(searchstring, "(&(objectclass=posixAccount)(uid=%s))", username);
+ snprintf(searchstring, sizeof(searchstring), "(&(objectclass=posixAccount)(cn=%s))", username);
+ // snprintf(searchstring, sizeof(searchstring), "(&(objectclass=posixAccount)(uid=%s))", username);
}
- syslog(LOG_DEBUG, "LDAP search: %s\n", searchstring);
- i = ldap_search_ext_s(ldserver, /* ld */
- config.c_ldap_base_dn, /* base */
+ syslog(LOG_DEBUG, "ldap: search: %s", searchstring);
+ (void) ldap_search_ext_s(
+ ldserver, /* ld */
+ CtdlGetConfigStr("c_ldap_base_dn"), /* base */
LDAP_SCOPE_SUBTREE, /* scope */
searchstring, /* filter */
NULL, /* attrs (all attributes) */
* the search succeeds. Instead, we check to see whether search_result is still NULL.
*/
if (search_result == NULL) {
- syslog(LOG_DEBUG, "LDAP search: zero results were returned\n");
+ syslog(LOG_DEBUG, "ldap: zero search results were returned");
ldap_unbind(ldserver);
return(2);
}
user_dn = ldap_get_dn(ldserver, entry);
if (user_dn) {
- syslog(LOG_DEBUG, "dn = %s\n", user_dn);
- }
-
- if (config.c_auth_mode == AUTHMODE_LDAP_AD) {
- values = ldap_get_values(ldserver, search_result, "displayName");
- if (values) {
- if (values[0]) {
- if (fullname) safestrncpy(fullname, values[0], fullname_size);
- syslog(LOG_DEBUG, "displayName = %s\n", values[0]);
- }
- ldap_value_free(values);
- }
- }
- else {
- values = ldap_get_values(ldserver, search_result, "cn");
- if (values) {
- if (values[0]) {
- if (fullname) safestrncpy(fullname, values[0], fullname_size);
- syslog(LOG_DEBUG, "cn = %s\n", values[0]);
- }
- ldap_value_free(values);
- }
- }
-
- if (config.c_auth_mode == AUTHMODE_LDAP_AD) {
- values = ldap_get_values(ldserver, search_result, "objectGUID");
- if (values) {
- if (values[0]) {
- if (uid != NULL) {
- *uid = abs(HashLittle(values[0], strlen(values[0])));
- syslog(LOG_DEBUG, "uid hashed from objectGUID = %d\n", *uid);
- }
- }
- ldap_value_free(values);
- }
- }
- else {
- values = ldap_get_values(ldserver, search_result, "uidNumber");
- if (values) {
- if (values[0]) {
- syslog(LOG_DEBUG, "uidNumber = %s\n", values[0]);
- if (uid != NULL) {
- *uid = atoi(values[0]);
- }
- }
- ldap_value_free(values);
- }
+ syslog(LOG_DEBUG, "ldap: dn = %s", user_dn);
}
+ derive_fullname_from_ldap_result(fullname, fullname_size, ldserver, search_result);
+ *uid = derive_uid_from_ldap(ldserver, search_result);
}
/* free the results */
ldap_unbind(ldserver);
if (!user_dn) {
- syslog(LOG_DEBUG, "No such user was found.\n");
+ syslog(LOG_DEBUG, "ldap: No such user was found.");
return(4);
}
int i = (-1);
if (IsEmptyStr(password)) {
- syslog(LOG_DEBUG, "LDAP: empty passwords are not permitted\n");
+ syslog(LOG_DEBUG, "ldap: empty passwords are not permitted");
return(1);
}
- syslog(LOG_DEBUG, "LDAP: trying to bind as %s\n", user_dn);
- ldserver = ldap_init(config.c_ldap_host, config.c_ldap_port);
- if (ldserver) {
+ syslog(LOG_DEBUG, "ldap: trying to bind as %s", user_dn);
+ i = ctdl_ldap_initialize(&ldserver);
+ if (i == LDAP_SUCCESS) {
ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
i = ldap_simple_bind_s(ldserver, user_dn, password);
if (i == LDAP_SUCCESS) {
- syslog(LOG_DEBUG, "LDAP: bind succeeded\n");
+ syslog(LOG_DEBUG, "ldap: bind succeeded");
}
else {
- syslog(LOG_DEBUG, "LDAP: Cannot bind: %s (%d)\n", ldap_err2string(i), i);
+ syslog(LOG_DEBUG, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
}
+ ldap_set_option(ldserver, LDAP_OPT_REFERRALS, (void *)LDAP_OPT_OFF);
ldap_unbind(ldserver);
}
}
+//return !0 iff property changed.
+int vcard_set_props_iff_different(struct vCard *v,char *propname,int numvals, char **vals) {
+ int i;
+ char *oldval = "";
+ for(i=0;i<numvals;i++) {
+ oldval = vcard_get_prop(v,propname,0,i,0);
+ if (oldval == NULL) break;
+ if (strcmp(vals[i],oldval)) break;
+ }
+ if (i!=numvals) {
+ syslog(LOG_DEBUG, "ldap: vcard property %s, element %d of %d changed from %s to %s\n", propname, i, numvals, oldval, vals[i]);
+ for(i=0;i<numvals;i++) vcard_set_prop(v,propname,vals[i],(i==0) ? 0 : 1);
+ return 1;
+ }
+ return 0;
+}
+
+
+//return !0 iff property changed.
+int vcard_set_one_prop_iff_different(struct vCard *v,char *propname, char *newfmt, ...) {
+ va_list args;
+ char *newvalue;
+ int changed_something;
+ va_start(args,newfmt);
+ if (-1==vasprintf(&newvalue,newfmt,args)) {
+ syslog(LOG_ERR, "ldap: out of memory!");
+ return 0;
+ }
+ changed_something = vcard_set_props_iff_different(v,propname,1,&newvalue);
+ va_end(args);
+ free(newvalue);
+ return changed_something;
+}
+
+
/*
* Learn LDAP attributes and stuff them into the vCard.
* Returns nonzero if we changed anything.
int Ctdl_LDAP_to_vCard(char *ldap_dn, struct vCard *v)
{
int changed_something = 0;
+ LDAP *ldserver = NULL;
+ int i;
+ struct timeval tv;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ char **givenName;
+ char **sn;
+ char **cn;
+ char **initials;
+ char **o;
+ char **street;
+ char **l;
+ char **st;
+ char **postalCode;
+ char **telephoneNumber;
+ char **mobile;
+ char **homePhone;
+ char **facsimileTelephoneNumber;
+ char **mail;
+ char **uid;
+ char **homeDirectory;
+ char **uidNumber;
+ char **loginShell;
+ char **gidNumber;
+ char **c;
+ char **title;
+ char **uuid;
+ char *attrs[] = { "*","+",NULL};
if (!ldap_dn) return(0);
if (!v) return(0);
- /*
- * FIXME this is a stub function
- *
- * ldap_dn will contain the DN of the user, and v will contain a pointer to
- * the vCard that needs to be (re-)populated. Put the requisite LDAP code here.
- *
- vcard_set_prop(v, "email;internet", xxx, 0);
- *
- * return nonzero to tell the caller that we made changes that need to be saved
- changed_something = 1;
- *
+ if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
+ return(0);
+ }
+
+ ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
+ ldap_set_option(ldserver, LDAP_OPT_REFERRALS, (void *)LDAP_OPT_OFF);
+
+ striplt(CtdlGetConfigStr("c_ldap_bind_dn"));
+ striplt(CtdlGetConfigStr("c_ldap_bind_pw"));
+ syslog(LOG_DEBUG, "ldap: bind DN: %s", CtdlGetConfigStr("c_ldap_bind_dn"));
+ i = ldap_simple_bind_s(ldserver,
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_dn")) ? CtdlGetConfigStr("c_ldap_bind_dn") : NULL),
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_pw")) ? CtdlGetConfigStr("c_ldap_bind_pw") : NULL)
+ );
+ if (i != LDAP_SUCCESS) {
+ syslog(LOG_ERR, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
+ return(0);
+ }
+
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+
+ syslog(LOG_DEBUG, "ldap: search: %s", ldap_dn);
+ (void) ldap_search_ext_s(
+ ldserver, // ld
+ ldap_dn, // base
+ LDAP_SCOPE_SUBTREE, // scope
+ NULL, // filter
+ attrs, // attrs (all attributes)
+ 0, // attrsonly (attrs + values)
+ NULL, // serverctrls (none)
+ NULL, // clientctrls (none)
+ &tv, // timeout
+ 1, // sizelimit (1 result max)
+ &search_result // res
+ );
+
+ /* Ignore the return value of ldap_search_ext_s(). Sometimes it returns an error even when
+ * the search succeeds. Instead, we check to see whether search_result is still NULL.
+ */
+ if (search_result == NULL) {
+ syslog(LOG_DEBUG, "ldap: zero search results were returned");
+ ldap_unbind(ldserver);
+ return(0);
+ }
+
+ /* At this point we've got at least one result from our query. If there are multiple
+ * results, we still only look at the first one.
*/
+ entry = ldap_first_entry(ldserver, search_result);
+ if (entry) {
+ syslog(LOG_DEBUG, "ldap: search got user details for vcard.");
+ givenName=ldap_get_values(ldserver, search_result, "givenName");
+ sn=ldap_get_values(ldserver, search_result, "sn");
+ cn=ldap_get_values(ldserver, search_result, "cn");
+ initials=ldap_get_values(ldserver, search_result, "initials");
+ title=ldap_get_values(ldserver, search_result, "title");
+ o=ldap_get_values(ldserver, search_result, "o");
+ street=ldap_get_values(ldserver, search_result, "street");
+ l=ldap_get_values(ldserver, search_result, "l");
+ st=ldap_get_values(ldserver, search_result, "st");
+ postalCode=ldap_get_values(ldserver, search_result, "postalCode");
+ telephoneNumber=ldap_get_values(ldserver, search_result, "telephoneNumber");
+ mobile=ldap_get_values(ldserver, search_result, "mobile");
+ homePhone=ldap_get_values(ldserver, search_result, "homePhone");
+ facsimileTelephoneNumber=ldap_get_values(ldserver, search_result, "facsimileTelephoneNumber");
+ mail=ldap_get_values(ldserver, search_result, "mail");
+ uid=ldap_get_values(ldserver, search_result, "uid");
+ homeDirectory=ldap_get_values(ldserver, search_result, "homeDirectory");
+ uidNumber=ldap_get_values(ldserver, search_result, "uidNumber");
+ loginShell=ldap_get_values(ldserver, search_result, "loginShell");
+ gidNumber=ldap_get_values(ldserver, search_result, "gidNumber");
+ c=ldap_get_values(ldserver, search_result, "c");
+ uuid=ldap_get_values(ldserver, search_result, "entryUUID");
+
+ if (street && l && st && postalCode && c) changed_something |= vcard_set_one_prop_iff_different(v,"adr",";;%s;%s;%s;%s;%s",street[0],l[0],st[0],postalCode[0],c[0]);
+ if (telephoneNumber) changed_something |= vcard_set_one_prop_iff_different(v,"tel;work","%s",telephoneNumber[0]);
+ if (facsimileTelephoneNumber) changed_something |= vcard_set_one_prop_iff_different(v,"tel;fax","%s",facsimileTelephoneNumber[0]);
+ if (mobile) changed_something |= vcard_set_one_prop_iff_different(v,"tel;cell","%s",mobile[0]);
+ if (homePhone) changed_something |= vcard_set_one_prop_iff_different(v,"tel;home","%s",homePhone[0]);
+ if (givenName && sn) {
+ if (initials) {
+ changed_something |= vcard_set_one_prop_iff_different(v,"n","%s;%s;%s",sn[0],givenName[0],initials[0]);
+ }
+ else {
+ changed_something |= vcard_set_one_prop_iff_different(v,"n","%s;%s",sn[0],givenName[0]);
+ }
+ }
+ if (mail) {
+ changed_something |= vcard_set_props_iff_different(v,"email;internet",ldap_count_values(mail),mail);
+ }
+ if (uuid) changed_something |= vcard_set_one_prop_iff_different(v,"X-uuid","%s",uuid[0]);
+ if (o) changed_something |= vcard_set_one_prop_iff_different(v,"org","%s",o[0]);
+ if (cn) changed_something |= vcard_set_one_prop_iff_different(v,"fn","%s",cn[0]);
+ if (title) changed_something |= vcard_set_one_prop_iff_different(v,"title","%s",title[0]);
+
+ if (givenName) ldap_value_free(givenName);
+ if (initials) ldap_value_free(initials);
+ if (sn) ldap_value_free(sn);
+ if (cn) ldap_value_free(cn);
+ if (o) ldap_value_free(o);
+ if (street) ldap_value_free(street);
+ if (l) ldap_value_free(l);
+ if (st) ldap_value_free(st);
+ if (postalCode) ldap_value_free(postalCode);
+ if (telephoneNumber) ldap_value_free(telephoneNumber);
+ if (mobile) ldap_value_free(mobile);
+ if (homePhone) ldap_value_free(homePhone);
+ if (facsimileTelephoneNumber) ldap_value_free(facsimileTelephoneNumber);
+ if (mail) ldap_value_free(mail);
+ if (uid) ldap_value_free(uid);
+ if (homeDirectory) ldap_value_free(homeDirectory);
+ if (uidNumber) ldap_value_free(uidNumber);
+ if (loginShell) ldap_value_free(loginShell);
+ if (gidNumber) ldap_value_free(gidNumber);
+ if (c) ldap_value_free(c);
+ if (title) ldap_value_free(title);
+ if (uuid) ldap_value_free(uuid);
+ }
+ /* free the results */
+ ldap_msgfree(search_result);
+ /* unbind so we can go back in as the authenticating user */
+ ldap_unbind(ldserver);
return(changed_something); /* tell the caller whether we made any changes */
}
+
+/*
+ * Extract a user's Internet email addresses from LDAP.
+ * Returns zero if we got a valid set of addresses; nonzero for error.
+ */
+int extract_email_addresses_from_ldap(char *ldap_dn, char *emailaddrs)
+{
+ LDAP *ldserver = NULL;
+ int i;
+ struct timeval tv;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ char **mail;
+ char *attrs[] = { "*","+",NULL};
+
+ if (!ldap_dn) return(1);
+ if (!emailaddrs) return(1);
+
+ if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
+ return(2);
+ }
+
+ ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
+ ldap_set_option(ldserver, LDAP_OPT_REFERRALS, (void *)LDAP_OPT_OFF);
+
+ striplt(CtdlGetConfigStr("c_ldap_bind_dn"));
+ striplt(CtdlGetConfigStr("c_ldap_bind_pw"));
+ syslog(LOG_DEBUG, "ldap: bind DN: %s", CtdlGetConfigStr("c_ldap_bind_dn"));
+ i = ldap_simple_bind_s(ldserver,
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_dn")) ? CtdlGetConfigStr("c_ldap_bind_dn") : NULL),
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_pw")) ? CtdlGetConfigStr("c_ldap_bind_pw") : NULL)
+ );
+ if (i != LDAP_SUCCESS) {
+ syslog(LOG_ERR, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
+ return(3);
+ }
+
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+
+ syslog(LOG_DEBUG, "ldap: search: %s", ldap_dn);
+ (void) ldap_search_ext_s(
+ ldserver, // ld
+ ldap_dn, // base
+ LDAP_SCOPE_SUBTREE, // scope
+ NULL, // filter
+ attrs, // attrs (all attributes)
+ 0, // attrsonly (attrs + values)
+ NULL, // serverctrls (none)
+ NULL, // clientctrls (none)
+ &tv, // timeout
+ 1, // sizelimit (1 result max)
+ &search_result // res
+ );
+
+ /* Ignore the return value of ldap_search_ext_s(). Sometimes it returns an error even when
+ * the search succeeds. Instead, we check to see whether search_result is still NULL.
+ */
+ if (search_result == NULL) {
+ syslog(LOG_DEBUG, "ldap: zero search results were returned");
+ ldap_unbind(ldserver);
+ return(4);
+ }
+
+ /* At this point we've got at least one result from our query. If there are multiple
+ * results, we still only look at the first one.
+ */
+ emailaddrs[0] = 0; /* clear out any previous results */
+ entry = ldap_first_entry(ldserver, search_result);
+ if (entry) {
+ syslog(LOG_DEBUG, "ldap: search got user details");
+ mail = ldap_get_values(ldserver, search_result, "mail");
+
+ if (mail) {
+ int q;
+ for (q=0; q<ldap_count_values(mail); ++q) {
+ if (IsDirectory(mail[q], 0)) {
+ if ((strlen(emailaddrs) + strlen(mail[q]) + 2) > 512) {
+ syslog(LOG_ERR, "ldap: can't fit all email addresses into user record");
+ }
+ else {
+ if (!IsEmptyStr(emailaddrs)) {
+ strcat(emailaddrs, "|");
+ }
+ strcat(emailaddrs, mail[q]);
+ }
+ }
+ }
+ }
+ }
+
+ /* free the results */
+ ldap_msgfree(search_result);
+
+ /* unbind so we can go back in as the authenticating user */
+ ldap_unbind(ldserver);
+ return(0);
+}
+
+
+/*
+ * Scan LDAP for users and populate Citadel's user database with everyone
+ */
+void CtdlSynchronizeUsersFromLDAP(void)
+{
+ LDAP *ldserver = NULL;
+ int i;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ char *user_dn = NULL;
+ char searchstring[1024];
+ struct timeval tv;
+
+ if ((CtdlGetConfigInt("c_auth_mode") != AUTHMODE_LDAP) && (CtdlGetConfigInt("c_auth_mode") != AUTHMODE_LDAP_AD)) {
+ return; // not running LDAP
+ }
+
+ syslog(LOG_INFO, "ldap: synchronizing Citadel user database from LDAP");
+
+ if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
+ return;
+ }
+
+ ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
+ ldap_set_option(ldserver, LDAP_OPT_REFERRALS, (void *)LDAP_OPT_OFF);
+
+ striplt(CtdlGetConfigStr("c_ldap_bind_dn"));
+ striplt(CtdlGetConfigStr("c_ldap_bind_pw"));
+ syslog(LOG_DEBUG, "ldap: bind DN: %s", CtdlGetConfigStr("c_ldap_bind_dn"));
+ i = ldap_simple_bind_s(ldserver,
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_dn")) ? CtdlGetConfigStr("c_ldap_bind_dn") : NULL),
+ (!IsEmptyStr(CtdlGetConfigStr("c_ldap_bind_pw")) ? CtdlGetConfigStr("c_ldap_bind_pw") : NULL)
+ );
+ if (i != LDAP_SUCCESS) {
+ syslog(LOG_ERR, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
+ return;
+ }
+
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ snprintf(searchstring, sizeof(searchstring), "(&(objectClass=user)(objectClass=person)(!(objectClass=computer)))");
+ } else {
+ snprintf(searchstring, sizeof(searchstring), "(objectClass=inetOrgPerson)");
+ }
+
+ syslog(LOG_DEBUG, "ldap: search: %s", searchstring);
+ (void) ldap_search_ext_s(
+ ldserver, // ld
+ CtdlGetConfigStr("c_ldap_base_dn"), // base
+ LDAP_SCOPE_SUBTREE, // scope
+ searchstring, // filter
+ NULL, // attrs (all attributes)
+ 0, // attrsonly (attrs + values)
+ NULL, // serverctrls (none)
+ NULL, // clientctrls (none)
+ &tv, // timeout
+ INT_MAX, // sizelimit (max)
+ &search_result // result
+ );
+
+ /* Ignore the return value of ldap_search_ext_s(). Sometimes it returns an error even when
+ * the search succeeds. Instead, we check to see whether search_result is still NULL.
+ */
+ if (search_result == NULL) {
+ syslog(LOG_DEBUG, "ldap: zero search results were returned");
+ ldap_unbind(ldserver);
+ return;
+ }
+
+ syslog(LOG_DEBUG, "ldap: %d entries returned", ldap_count_entries(ldserver, search_result));
+ entry = ldap_first_entry(ldserver, search_result);
+ while (entry) {
+
+ user_dn = ldap_get_dn(ldserver, entry);
+ if (user_dn) {
+ syslog(LOG_DEBUG, "ldap: found %s", user_dn);
+
+ int fullname_size = 256;
+ char fullname[256] = { 0 } ;
+ uid_t uid = (-1);
+
+ derive_fullname_from_ldap_result(fullname, fullname_size, ldserver, entry);
+ uid = derive_uid_from_ldap(ldserver, entry);
+ syslog(LOG_DEBUG, "\033[33mldap: display name: <%s> , uid = <%d>\033[0m", fullname, uid);
+
+ // FIXME now create or update the user
+
+
+ }
+
+ entry = ldap_next_entry(ldserver, entry);
+ }
+
+ /* free the results */
+ ldap_msgfree(search_result);
+
+ /* unbind so we can go back in as the authenticating user */
+ ldap_unbind(ldserver);
+}
+
#endif /* HAVE_LDAP */
projects / citadel.git / blobdiff