#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
*/
/*
- * Look up a user in the directory to see if this is an account that can be authenticated
+ * Bind to the LDAP server and return a working handle
*/
-int CtdlTryUserLDAP(char *username,
- char *found_dn, int found_dn_size,
- char *fullname, int fullname_size,
- uid_t *uid, int lookup_based_on_username)
-{
+LDAP *ctdl_ldap_bind(void) {
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);
if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
- return(errno);
+ return(NULL);
}
ldap_set_option(ldserver, LDAP_OPT_PROTOCOL_VERSION, &ctdl_require_ldap_version);
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(i);
+ return(NULL);
}
+ return(ldserver);
+}
+
+
+/*
+ * 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,
+ 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 (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD) {
- if (lookup_based_on_username != 0)
- snprintf(searchstring, sizeof(searchstring), "(displayName=%s)",username);
- else
- snprintf(searchstring, sizeof(searchstring), "(sAMAccountName=%s)", username);
+ snprintf(searchstring, sizeof(searchstring), "(sAMAccountName=%s)", username);
}
else {
- if (lookup_based_on_username != 0) {
- snprintf(searchstring, sizeof(searchstring), "(cn=%s)",username);
- }
- else {
- snprintf(searchstring, sizeof(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", searchstring);
syslog(LOG_DEBUG, "ldap: dn = %s", user_dn);
}
- 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);
- }
- }
- /* If we know the username is the CN/displayName, we already set the uid*/
- if (lookup_based_on_username==0) {
- if (CtdlGetConfigInt("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, "ldap: uid hashed from objectGUID = %d", *uid);
- }
- }
- ldap_value_free(values);
- }
- }
- else {
- values = ldap_get_values(ldserver, search_result, "uidNumber");
- if (values) {
- if (values[0]) {
- syslog(LOG_DEBUG, "ldap: uidNumber = %s", values[0]);
- if (uid != NULL) {
- *uid = atoi(values[0]);
- }
- }
- ldap_value_free(values);
- }
- }
- }
-
+ derive_fullname_from_ldap_result(fullname, fullname_size, ldserver, search_result);
+ *uid = derive_uid_from_ldap(ldserver, search_result);
}
/* free the results */
{
int changed_something = 0;
LDAP *ldserver = NULL;
- int i;
struct timeval tv;
LDAPMessage *search_result = NULL;
LDAPMessage *entry = NULL;
if (!ldap_dn) return(0);
if (!v) return(0);
- 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);
- }
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return(-1);
tv.tv_sec = 10;
tv.tv_usec = 0;
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;
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);
- }
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return(-1);
tv.tv_sec = 10;
tv.tv_usec = 0;
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");
+ 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)) {
- syslog(LOG_DEBUG, "\035FIXME YES DIRECTORY %s\033[0m", mail[q]);
if ((strlen(emailaddrs) + strlen(mail[q]) + 2) > 512) {
syslog(LOG_ERR, "ldap: can't fit all email addresses into user record");
}
/*
* Scan LDAP for users and populate Citadel's user database with everyone
*/
-void CtdlPopulateUsersFromLDAP(void)
+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;
- // char **values;
if ((CtdlGetConfigInt("c_auth_mode") != AUTHMODE_LDAP) && (CtdlGetConfigInt("c_auth_mode") != AUTHMODE_LDAP_AD)) {
return; // not running LDAP
}
- syslog(LOG_INFO, "ldap: populating Citadel user database from LDAP");
-
- if (ctdl_ldap_initialize(&ldserver) != LDAP_SUCCESS) {
- return;
- }
+ syslog(LOG_INFO, "ldap: synchronizing Citadel user database from LDAP");
- 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;
- }
+ ldserver = ctdl_ldap_bind();
+ if (!ldserver) return;
tv.tv_sec = 10;
tv.tv_usec = 0;
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 } ;
+
+ derive_fullname_from_ldap_result(fullname, fullname_size, ldserver, entry);
+ uid = derive_uid_from_ldap(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);
}
entry = ldap_next_entry(ldserver, entry);
projects / citadel.git / blobdiff