-/*
- * $Id$
- *
- * 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.
- *
- * 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 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
- */
+// These functions implement the portions of AUTHMODE_LDAP and AUTHMODE_LDAP_AD which
+// actually speak to the LDAP server.
+//
+// Copyright (c) 2011-2022 by the citadel.org development team.
+//
+// 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.
+
+// ldapsearch -D uid=admin,cn=users,cn=compat,dc=demo1,dc=freeipa,dc=org -w Secret123 -h ipa.demo1.freeipa.org
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"
-
-#ifdef HAVE_LDAP
-#define LDAP_DEPRECATED 1 /* Suppress libldap's warning that we are using deprecated API calls */
+#include "internet_addressing.h"
+#include "config.h"
#include <ldap.h>
-int CtdlTryUserLDAP(char *username,
- char *found_dn, int found_dn_size,
- char *fullname, int fullname_size,
- uid_t *uid)
-{
- LDAP *ldserver = NULL;
- int i;
- LDAPMessage *search_result = NULL;
- LDAPMessage *entry = NULL;
- char searchstring[1024];
- struct timeval tv;
- char **values;
- char *user_dn = NULL;
- if (fullname) safestrncpy(fullname, username, fullname_size);
+// Utility function, supply a search result and get back the fullname (display name, common name, etc) from the first result
+//
+// POSIX schema: the display name will be found in "cn" (common name)
+// Active Directory: the display name will be found in "displayName"
+//
+void derive_fullname_from_ldap_result(char *fullname, int fullname_size, LDAP *ldserver, LDAPMessage *search_result) {
+ struct berval **values;
+
+ if (fullname == NULL) return;
+ if (search_result == NULL) return;
+ if (ldserver == NULL) return;
+
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ values = ldap_get_values_len(ldserver, search_result, "displayName");
+ if (values) {
+ if (ldap_count_values_len(values) > 0) {
+ safestrncpy(fullname, values[0]->bv_val, fullname_size);
+ syslog(LOG_DEBUG, "ldap: displayName = %s", fullname);
+ }
+ ldap_value_free_len(values);
+ }
+ }
+ else {
+ values = ldap_get_values_len(ldserver, search_result, "cn");
+ if (values) {
+ if (ldap_count_values_len(values) > 0) {
+ safestrncpy(fullname, values[0]->bv_val, fullname_size);
+ syslog(LOG_DEBUG, "ldap: cn = %s", fullname);
+ }
+ ldap_value_free_len(values);
+ }
+ }
+}
+
- ldserver = ldap_init(config.c_ldap_host, config.c_ldap_port);
- if (ldserver == NULL) {
- CtdlLogPrintf(CTDL_ALERT, "LDAP: Could not connect to %s:%d : %s\n",
- config.c_ldap_host, config.c_ldap_port,
- strerror(errno)
- );
+// Utility function, supply a search result and get back the uid from the first result
+//
+// POSIX schema: numeric user id will be in the "uidNumber" attribute
+// Active Directory: we make a uid hashed from "objectGUID"
+//
+uid_t derive_uid_from_ldap(LDAP *ldserver, LDAPMessage *entry) {
+ struct berval **values;
+ uid_t uid = (-1);
+
+ if (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
+ values = ldap_get_values_len(ldserver, entry, "objectGUID");
+ if (values) {
+ if (ldap_count_values_len(values) > 0) {
+ uid = abs(HashLittle(values[0]->bv_val, values[0]->bv_len));
+ }
+ ldap_value_free_len(values);
+ }
+ }
+ else {
+ values = ldap_get_values_len(ldserver, entry, "uidNumber");
+ if (values) {
+ if (ldap_count_values_len(values) > 0) {
+ uid = atoi(values[0]->bv_val);
+ }
+ ldap_value_free_len(values);
+ }
+ }
+
+ syslog(LOG_DEBUG, "ldap: uid = %d", uid);
+ 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);
+}
+
+
+// Bind to the LDAP server and return a working handle
+LDAP *ctdl_ldap_bind(void) {
+ LDAP *ldserver = NULL;
+ int i;
+
+ if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
+ return(NULL);
+ }
+
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);
- CtdlLogPrintf(CTDL_DEBUG, "LDAP bind DN: %s\n", config.c_ldap_bind_dn);
+ striplt(CtdlGetConfigStr("c_ldap_bind_dn"));
+ striplt(CtdlGetConfigStr("c_ldap_bind_pw"));
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) {
- CtdlLogPrintf(CTDL_ALERT, "LDAP: Cannot bind: %s (%d)\n", ldap_err2string(i), i);
- return(i);
+ syslog(LOG_ERR, "ldap: Cannot bind: %s (%d)", ldap_err2string(i), i);
+ return(NULL);
}
+ return(ldserver);
+}
+
+
+// Look up a user in the directory to see if this is an account that can be authenticated
+//
+// POSIX schema: Search all "inetOrgPerson" objects with "uid" set to the supplied username
+// Active Directory: Look for an account with "sAMAccountName" set to the supplied username
+//
+int CtdlTryUserLDAP(char *username, char *found_dn, int found_dn_size, char *fullname, int fullname_size, uid_t *uid) {
+ LDAP *ldserver = NULL;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ char searchstring[1024];
+ struct timeval tv;
+ char *user_dn = NULL;
+
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return(-1);
+
+ if (fullname) safestrncpy(fullname, username, fullname_size);
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=inetOrgPerson)(uid=%s))", username);
}
- CtdlLogPrintf(CTDL_DEBUG, "LDAP search: %s\n", searchstring);
- i = ldap_search_ext_s(ldserver, /* ld */
- config.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 */
- 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.
- */
+ syslog(LOG_DEBUG, "ldap: search: %s", searchstring);
+ syslog(LOG_DEBUG, "ldap: search results: %s", ldap_err2string(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
+ 1, // sizelimit (1 result max)
+ &search_result // put the result here
+ )));
+
+ // 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) {
- CtdlLogPrintf(CTDL_DEBUG, "LDAP search: zero results were returned\n");
+ syslog(LOG_DEBUG, "ldap: zero search results were returned");
ldap_unbind(ldserver);
return(2);
}
- /* 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.
- */
+ // 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) {
user_dn = ldap_get_dn(ldserver, entry);
if (user_dn) {
- CtdlLogPrintf(CTDL_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);
- CtdlLogPrintf(CTDL_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);
- CtdlLogPrintf(CTDL_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])));
- CtdlLogPrintf(CTDL_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]) {
- CtdlLogPrintf(CTDL_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 */
+ // free the results
ldap_msgfree(search_result);
- /* unbind so we can go back in as the authenticating user */
+ // unbind so we can go back in as the authenticating user
ldap_unbind(ldserver);
if (!user_dn) {
- CtdlLogPrintf(CTDL_DEBUG, "No such user was found.\n");
+ syslog(LOG_DEBUG, "ldap: No such user was found.");
return(4);
}
}
-int CtdlTryPasswordLDAP(char *user_dn, const char *password)
-{
+// This is an extension of CtdlTryPassword() which gets called when using LDAP authentication.
+int CtdlTryPasswordLDAP(char *user_dn, const char *password) {
LDAP *ldserver = NULL;
int i = (-1);
if (IsEmptyStr(password)) {
- CtdlLogPrintf(CTDL_DEBUG, "LDAP: empty passwords are not permitted\n");
+ syslog(LOG_DEBUG, "ldap: empty passwords are not permitted");
return(1);
}
- CtdlLogPrintf(CTDL_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) {
- CtdlLogPrintf(CTDL_DEBUG, "LDAP: bind succeeded\n");
+ syslog(LOG_DEBUG, "ldap: bind succeeded");
}
else {
- CtdlLogPrintf(CTDL_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);
}
}
-/*
- * 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)
-{
+// set multiple properties
+// returns nonzero only if 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", 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;
+}
+
+
+// set one property
+// returns nonzero only if property changed.
+int vcard_set_one_prop_iff_different(struct vCard *v,char *propname, char *newfmt, ...) {
+ va_list args;
+ char *newvalue;
+ int did_change = 0;
+ va_start(args,newfmt);
+ if (vasprintf(&newvalue, newfmt, args) < 0) {
+ syslog(LOG_ERR, "ldap: out of memory");
+ return 0;
+ }
+ did_change = vcard_set_props_iff_different(v, propname, 1, &newvalue);
+ va_end(args);
+ free(newvalue);
+ return did_change;
+}
+
+
+// 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;
+ struct timeval tv;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ struct berval **givenName;
+ struct berval **sn;
+ struct berval **cn;
+ struct berval **initials;
+ struct berval **o;
+ struct berval **street;
+ struct berval **l;
+ struct berval **st;
+ struct berval **postalCode;
+ struct berval **telephoneNumber;
+ struct berval **mobile;
+ struct berval **homePhone;
+ struct berval **facsimileTelephoneNumber;
+ struct berval **mail;
+ struct berval **uid;
+ struct berval **homeDirectory;
+ struct berval **uidNumber;
+ struct berval **loginShell;
+ struct berval **gidNumber;
+ struct berval **c;
+ struct berval **title;
+ struct berval **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;
- *
- */
-
- return(changed_something); /* tell the caller whether we made any changes */
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return(-1);
+
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+
+ syslog(LOG_DEBUG, "ldap: search: %s", ldap_dn);
+ syslog(LOG_DEBUG, "ldap: search results: %s", ldap_err2string(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_len(ldserver, search_result, "givenName");
+ sn = ldap_get_values_len(ldserver, search_result, "sn");
+ cn = ldap_get_values_len(ldserver, search_result, "cn");
+ initials = ldap_get_values_len(ldserver, search_result, "initials");
+ title = ldap_get_values_len(ldserver, search_result, "title");
+ o = ldap_get_values_len(ldserver, search_result, "o");
+ street = ldap_get_values_len(ldserver, search_result, "street");
+ l = ldap_get_values_len(ldserver, search_result, "l");
+ st = ldap_get_values_len(ldserver, search_result, "st");
+ postalCode = ldap_get_values_len(ldserver, search_result, "postalCode");
+ telephoneNumber = ldap_get_values_len(ldserver, search_result, "telephoneNumber");
+ mobile = ldap_get_values_len(ldserver, search_result, "mobile");
+ homePhone = ldap_get_values_len(ldserver, search_result, "homePhone");
+ facsimileTelephoneNumber = ldap_get_values_len(ldserver, search_result, "facsimileTelephoneNumber");
+ mail = ldap_get_values_len(ldserver, search_result, "mail");
+ uid = ldap_get_values_len(ldserver, search_result, "uid");
+ homeDirectory = ldap_get_values_len(ldserver, search_result, "homeDirectory");
+ uidNumber = ldap_get_values_len(ldserver, search_result, "uidNumber");
+ loginShell = ldap_get_values_len(ldserver, search_result, "loginShell");
+ gidNumber = ldap_get_values_len(ldserver, search_result, "gidNumber");
+ c = ldap_get_values_len(ldserver, search_result, "c");
+ uuid = ldap_get_values_len(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]->bv_val,l[0]->bv_val,st[0]->bv_val,postalCode[0]->bv_val,c[0]->bv_val);
+ if (telephoneNumber) changed_something |= vcard_set_one_prop_iff_different(v,"tel;work","%s",telephoneNumber[0]->bv_val);
+ if (facsimileTelephoneNumber) changed_something |= vcard_set_one_prop_iff_different(v,"tel;fax","%s",facsimileTelephoneNumber[0]->bv_val);
+ if (mobile) changed_something |= vcard_set_one_prop_iff_different(v,"tel;cell","%s",mobile[0]->bv_val);
+ if (homePhone) changed_something |= vcard_set_one_prop_iff_different(v,"tel;home","%s",homePhone[0]->bv_val);
+ if (givenName && sn) {
+ if (initials) {
+ changed_something |= vcard_set_one_prop_iff_different(v,"n","%s;%s;%s",sn[0]->bv_val,givenName[0]->bv_val,initials[0]->bv_val);
+ }
+ else {
+ changed_something |= vcard_set_one_prop_iff_different(v,"n","%s;%s",sn[0]->bv_val,givenName[0]->bv_val);
+ }
+ }
+
+ // FIXME we need a new way to do this.
+ //if (mail) {
+ //changed_something |= vcard_set_props_iff_different(v,"email;internet",ldap_count_values_len(mail),mail);
+ //}
+
+ if (uuid) changed_something |= vcard_set_one_prop_iff_different(v,"X-uuid","%s",uuid[0]->bv_val);
+ if (o) changed_something |= vcard_set_one_prop_iff_different(v,"org","%s",o[0]->bv_val);
+ if (cn) changed_something |= vcard_set_one_prop_iff_different(v,"fn","%s",cn[0]->bv_val);
+ if (title) changed_something |= vcard_set_one_prop_iff_different(v,"title","%s",title[0]->bv_val);
+
+ if (givenName) ldap_value_free_len(givenName);
+ if (initials) ldap_value_free_len(initials);
+ if (sn) ldap_value_free_len(sn);
+ if (cn) ldap_value_free_len(cn);
+ if (o) ldap_value_free_len(o);
+ if (street) ldap_value_free_len(street);
+ if (l) ldap_value_free_len(l);
+ if (st) ldap_value_free_len(st);
+ if (postalCode) ldap_value_free_len(postalCode);
+ if (telephoneNumber) ldap_value_free_len(telephoneNumber);
+ if (mobile) ldap_value_free_len(mobile);
+ if (homePhone) ldap_value_free_len(homePhone);
+ if (facsimileTelephoneNumber) ldap_value_free_len(facsimileTelephoneNumber);
+ if (mail) ldap_value_free_len(mail);
+ if (uid) ldap_value_free_len(uid);
+ if (homeDirectory) ldap_value_free_len(homeDirectory);
+ if (uidNumber) ldap_value_free_len(uidNumber);
+ if (loginShell) ldap_value_free_len(loginShell);
+ if (gidNumber) ldap_value_free_len(gidNumber);
+ if (c) ldap_value_free_len(c);
+ if (title) ldap_value_free_len(title);
+ if (uuid) ldap_value_free_len(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;
+ struct timeval tv;
+ LDAPMessage *search_result = NULL;
+ LDAPMessage *entry = NULL;
+ struct berval **mail;
+ char *attrs[] = { "*","+",NULL };
+
+ if (!ldap_dn) return(1);
+ if (!emailaddrs) return(1);
+
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return(-1);
+
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+
+ syslog(LOG_DEBUG, "ldap: search: %s", ldap_dn);
+ syslog(LOG_DEBUG, "ldap: search results: %s", ldap_err2string(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_len(ldserver, search_result, "mail");
+ if (mail) {
+ int q;
+ for (q=0; q<ldap_count_values_len(mail); ++q) {
+ if (IsDirectory(mail[q]->bv_val, 0)) {
+ if ((strlen(emailaddrs) + mail[q]->bv_len + 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]->bv_val);
+ }
+ }
+ }
+ }
+ }
+
+ // free the results
+ ldap_msgfree(search_result);
+
+ // unbind so we can go back in as the authenticating user
+ ldap_unbind(ldserver);
+ return(0);
+}
+
+
+// Remember that a particular user exists in the Citadel database.
+// As we scan the LDAP tree we will remove users from this list when we find them.
+// At the end of the scan, any users remaining in this list are stale and should be deleted.
+void ldap_note_user_in_citadel(char *username, void *data) {
+ return;
}
-#endif /* HAVE_LDAP */
+
+// Scan LDAP for users and populate Citadel's user database with everyone
+//
+// POSIX schema: All objects of class "inetOrgPerson"
+// Active Directory: Objects that are class "user" and class "person" but NOT class "computer"
+//
+void CtdlSynchronizeUsersFromLDAP(void) {
+ LDAP *ldserver = NULL;
+ 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; // If this site is not running LDAP, stop here.
+ }
+
+ syslog(LOG_INFO, "ldap: synchronizing Citadel user database from LDAP");
+
+ // first, scan the existing Citadel user list
+ // ForEachUser(ldap_note_user_in_citadel, NULL); // FIXME finish this
+
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) 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);
+ syslog(LOG_DEBUG, "ldap: search results: %s", ldap_err2string(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 // put the result here
+ )));
+
+ // 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));
+ for (entry=ldap_first_entry(ldserver, search_result); entry!=NULL; entry=ldap_next_entry(ldserver, 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);
+ char new_emailaddrs[512] = { 0 } ;
+
+ uid = derive_uid_from_ldap(ldserver, entry);
+ derive_fullname_from_ldap_result(fullname, fullname_size, ldserver, entry);
+ syslog(LOG_DEBUG, "ldap: display name: <%s> , uid = <%d>", fullname, uid);
+
+ // now create or update the user
+ int found_user;
+ struct ctdluser usbuf;
+
+ found_user = getuserbyuid(&usbuf, uid);
+ if (found_user != 0) {
+ create_user(fullname, CREATE_USER_DO_NOT_BECOME_USER, uid);
+ found_user = getuserbyuid(&usbuf, uid);
+ strcpy(fullname, usbuf.fullname);
+ }
+
+ if (found_user == 0) { // user record exists
+ // now update the account email addresses if necessary
+ if (CtdlGetConfigInt("c_ldap_sync_email_addrs") > 0) {
+ if (extract_email_addresses_from_ldap(user_dn, new_emailaddrs) == 0) {
+ if (strcmp(usbuf.emailaddrs, new_emailaddrs)) { // update only if changed
+ CtdlSetEmailAddressesForUser(usbuf.fullname, new_emailaddrs);
+ }
+ }
+ }
+ }
+ ldap_memfree(user_dn);
+ }
+ }
+
+ // free the results
+ ldap_msgfree(search_result);
+
+ // unbind so we can go back in as the authenticating user
+ ldap_unbind(ldserver);
+}
projects / citadel.git / blobdiff