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ldap.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Amitay Isaacs <[email protected]> |
| Eric Warnke <[email protected]> |
| Rasmus Lerdorf <[email protected]> |
| Gerrit Thomson <[email protected]> |
| Jani Taskinen <[email protected]> |
| Stig Venaas <[email protected]> |
| Doug Goldstein <[email protected]> |
| PHP 4.0 updates: Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define IS_EXT_MODULE
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* Additional headers for NetWare */
#if defined(NETWARE) && (NEW_LIBC)
#include <sys/select.h>
#include <sys/timeval.h>
#endif
#include "php.h"
#include "php_ini.h"
#include <stddef.h>
#include "ext/standard/dl.h"
#include "php_ldap.h"
#ifdef PHP_WIN32
#include <string.h>
#include "config.w32.h"
#if HAVE_NSLDAP
#include <winsock2.h>
#endif
#define strdup _strdup
#undef WINDOWS
#undef strcasecmp
#undef strncasecmp
#define WINSOCK 1
#define __STDC__ 1
#endif
#include "ext/standard/php_string.h"
#include "ext/standard/info.h"
#ifdef HAVE_LDAP_SASL_H
#include <sasl.h>
#elif defined(HAVE_LDAP_SASL_SASL_H)
#include <sasl/sasl.h>
#endif
#define PHP_LDAP_ESCAPE_FILTER 0x01
#define PHP_LDAP_ESCAPE_DN 0x02
#if defined(LDAP_CONTROL_PAGEDRESULTS) && !defined(HAVE_LDAP_CONTROL_FIND)
LDAPControl *ldap_control_find( const char *oid, LDAPControl **ctrls, LDAPControl ***nextctrlp)
{
assert(nextctrlp == NULL);
return ldap_find_control(oid, ctrls);
}
#endif
#if !defined(LDAP_API_FEATURE_X_OPENLDAP)
void ldap_memvfree(void **v)
{
ldap_value_free((char **)v);
}
#endif
typedef struct {
LDAP *link;
#if defined(LDAP_API_FEATURE_X_OPENLDAP) && defined(HAVE_3ARG_SETREBINDPROC)
zval rebindproc;
#endif
} ldap_linkdata;
typedef struct {
LDAPMessage *data;
BerElement *ber;
zval res;
} ldap_resultentry;
ZEND_DECLARE_MODULE_GLOBALS(ldap)
static PHP_GINIT_FUNCTION(ldap);
static int le_link, le_result, le_result_entry;
#ifdef COMPILE_DL_LDAP
ZEND_GET_MODULE(ldap)
#endif
static void _close_ldap_link(zend_resource *rsrc) /* {{{ */
{
ldap_linkdata *ld = (ldap_linkdata *)rsrc->ptr;
ldap_unbind_ext(ld->link, NULL, NULL);
#if defined(LDAP_API_FEATURE_X_OPENLDAP) && defined(HAVE_3ARG_SETREBINDPROC)
zval_ptr_dtor(&ld->rebindproc);
#endif
efree(ld);
LDAPG(num_links)--;
}
/* }}} */
static void _free_ldap_result(zend_resource *rsrc) /* {{{ */
{
LDAPMessage *result = (LDAPMessage *)rsrc->ptr;
ldap_msgfree(result);
}
/* }}} */
static void _free_ldap_result_entry(zend_resource *rsrc) /* {{{ */
{
ldap_resultentry *entry = (ldap_resultentry *)rsrc->ptr;
if (entry->ber != NULL) {
ber_free(entry->ber, 0);
entry->ber = NULL;
}
zval_ptr_dtor(&entry->res);
efree(entry);
}
/* }}} */
/* {{{ PHP_INI_BEGIN
*/
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY_EX("ldap.max_links", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_links, zend_ldap_globals, ldap_globals, display_link_numbers)
PHP_INI_END()
/* }}} */
/* {{{ PHP_GINIT_FUNCTION
*/
static PHP_GINIT_FUNCTION(ldap)
{
ldap_globals->num_links = 0;
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(ldap)
{
REGISTER_INI_ENTRIES();
/* Constants to be used with deref-parameter in php_ldap_do_search() */
REGISTER_LONG_CONSTANT("LDAP_DEREF_NEVER", LDAP_DEREF_NEVER, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_DEREF_SEARCHING", LDAP_DEREF_SEARCHING, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_DEREF_FINDING", LDAP_DEREF_FINDING, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_DEREF_ALWAYS", LDAP_DEREF_ALWAYS, CONST_PERSISTENT | CONST_CS);
/* Constants to be used with ldap_modify_batch() */
REGISTER_LONG_CONSTANT("LDAP_MODIFY_BATCH_ADD", LDAP_MODIFY_BATCH_ADD, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_MODIFY_BATCH_REMOVE", LDAP_MODIFY_BATCH_REMOVE, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_MODIFY_BATCH_REMOVE_ALL", LDAP_MODIFY_BATCH_REMOVE_ALL, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_MODIFY_BATCH_REPLACE", LDAP_MODIFY_BATCH_REPLACE, CONST_PERSISTENT | CONST_CS);
REGISTER_STRING_CONSTANT("LDAP_MODIFY_BATCH_ATTRIB", LDAP_MODIFY_BATCH_ATTRIB, CONST_PERSISTENT | CONST_CS);
REGISTER_STRING_CONSTANT("LDAP_MODIFY_BATCH_MODTYPE", LDAP_MODIFY_BATCH_MODTYPE, CONST_PERSISTENT | CONST_CS);
REGISTER_STRING_CONSTANT("LDAP_MODIFY_BATCH_VALUES", LDAP_MODIFY_BATCH_VALUES, CONST_PERSISTENT | CONST_CS);
#if (LDAP_API_VERSION > 2000) || HAVE_NSLDAP || HAVE_ORALDAP
/* LDAP options */
REGISTER_LONG_CONSTANT("LDAP_OPT_DEREF", LDAP_OPT_DEREF, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_SIZELIMIT", LDAP_OPT_SIZELIMIT, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_TIMELIMIT", LDAP_OPT_TIMELIMIT, CONST_PERSISTENT | CONST_CS);
#ifdef LDAP_OPT_NETWORK_TIMEOUT
REGISTER_LONG_CONSTANT("LDAP_OPT_NETWORK_TIMEOUT", LDAP_OPT_NETWORK_TIMEOUT, CONST_PERSISTENT | CONST_CS);
#elif defined (LDAP_X_OPT_CONNECT_TIMEOUT)
REGISTER_LONG_CONSTANT("LDAP_OPT_NETWORK_TIMEOUT", LDAP_X_OPT_CONNECT_TIMEOUT, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef LDAP_OPT_TIMEOUT
REGISTER_LONG_CONSTANT("LDAP_OPT_TIMEOUT", LDAP_OPT_TIMEOUT, CONST_PERSISTENT | CONST_CS);
#endif
REGISTER_LONG_CONSTANT("LDAP_OPT_PROTOCOL_VERSION", LDAP_OPT_PROTOCOL_VERSION, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_ERROR_NUMBER", LDAP_OPT_ERROR_NUMBER, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_REFERRALS", LDAP_OPT_REFERRALS, CONST_PERSISTENT | CONST_CS);
#ifdef LDAP_OPT_RESTART
REGISTER_LONG_CONSTANT("LDAP_OPT_RESTART", LDAP_OPT_RESTART, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef LDAP_OPT_HOST_NAME
REGISTER_LONG_CONSTANT("LDAP_OPT_HOST_NAME", LDAP_OPT_HOST_NAME, CONST_PERSISTENT | CONST_CS);
#endif
REGISTER_LONG_CONSTANT("LDAP_OPT_ERROR_STRING", LDAP_OPT_ERROR_STRING, CONST_PERSISTENT | CONST_CS);
#ifdef LDAP_OPT_MATCHED_DN
REGISTER_LONG_CONSTANT("LDAP_OPT_MATCHED_DN", LDAP_OPT_MATCHED_DN, CONST_PERSISTENT | CONST_CS);
#endif
REGISTER_LONG_CONSTANT("LDAP_OPT_SERVER_CONTROLS", LDAP_OPT_SERVER_CONTROLS, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_CLIENT_CONTROLS", LDAP_OPT_CLIENT_CONTROLS, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef LDAP_OPT_DEBUG_LEVEL
REGISTER_LONG_CONSTANT("LDAP_OPT_DEBUG_LEVEL", LDAP_OPT_DEBUG_LEVEL, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef LDAP_OPT_DIAGNOSTIC_MESSAGE
REGISTER_LONG_CONSTANT("LDAP_OPT_DIAGNOSTIC_MESSAGE", LDAP_OPT_DIAGNOSTIC_MESSAGE, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef HAVE_LDAP_SASL
REGISTER_LONG_CONSTANT("LDAP_OPT_X_SASL_MECH", LDAP_OPT_X_SASL_MECH, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_SASL_REALM", LDAP_OPT_X_SASL_REALM, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_SASL_AUTHCID", LDAP_OPT_X_SASL_AUTHCID, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_SASL_AUTHZID", LDAP_OPT_X_SASL_AUTHZID, CONST_PERSISTENT | CONST_CS);
#endif
#ifdef ORALDAP
REGISTER_LONG_CONSTANT("GSLC_SSL_NO_AUTH", GSLC_SSL_NO_AUTH, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("GSLC_SSL_ONEWAY_AUTH", GSLC_SSL_ONEWAY_AUTH, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("GSLC_SSL_TWOWAY_AUTH", GSLC_SSL_TWOWAY_AUTH, CONST_PERSISTENT | CONST_CS);
#endif
#if (LDAP_API_VERSION > 2000)
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_REQUIRE_CERT", LDAP_OPT_X_TLS_REQUIRE_CERT, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_NEVER", LDAP_OPT_X_TLS_NEVER, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_HARD", LDAP_OPT_X_TLS_HARD, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_DEMAND", LDAP_OPT_X_TLS_DEMAND, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_ALLOW", LDAP_OPT_X_TLS_ALLOW, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_OPT_X_TLS_TRY", LDAP_OPT_X_TLS_TRY, CONST_PERSISTENT | CONST_CS);
#endif
REGISTER_LONG_CONSTANT("LDAP_ESCAPE_FILTER", PHP_LDAP_ESCAPE_FILTER, CONST_PERSISTENT | CONST_CS);
REGISTER_LONG_CONSTANT("LDAP_ESCAPE_DN", PHP_LDAP_ESCAPE_DN, CONST_PERSISTENT | CONST_CS);
le_link = zend_register_list_destructors_ex(_close_ldap_link, NULL, "ldap link", module_number);
le_result = zend_register_list_destructors_ex(_free_ldap_result, NULL, "ldap result", module_number);
le_result_entry = zend_register_list_destructors_ex(_free_ldap_result_entry, NULL, "ldap result entry", module_number);
ldap_module_entry.type = type;
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(ldap)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(ldap)
{
char tmp[32];
#if HAVE_NSLDAP
LDAPVersion ver;
double SDKVersion;
#endif
php_info_print_table_start();
php_info_print_table_row(2, "LDAP Support", "enabled");
php_info_print_table_row(2, "RCS Version", "$Id$");
if (LDAPG(max_links) == -1) {
snprintf(tmp, 31, ZEND_LONG_FMT "/unlimited", LDAPG(num_links));
} else {
snprintf(tmp, 31, ZEND_LONG_FMT "/" ZEND_LONG_FMT, LDAPG(num_links), LDAPG(max_links));
}
php_info_print_table_row(2, "Total Links", tmp);
#ifdef LDAP_API_VERSION
snprintf(tmp, 31, "%d", LDAP_API_VERSION);
php_info_print_table_row(2, "API Version", tmp);
#endif
#ifdef LDAP_VENDOR_NAME
php_info_print_table_row(2, "Vendor Name", LDAP_VENDOR_NAME);
#endif
#ifdef LDAP_VENDOR_VERSION
snprintf(tmp, 31, "%d", LDAP_VENDOR_VERSION);
php_info_print_table_row(2, "Vendor Version", tmp);
#endif
#if HAVE_NSLDAP
SDKVersion = ldap_version(&ver);
snprintf(tmp, 31, "%F", SDKVersion/100.0);
php_info_print_table_row(2, "SDK Version", tmp);
snprintf(tmp, 31, "%F", ver.protocol_version/100.0);
php_info_print_table_row(2, "Highest LDAP Protocol Supported", tmp);
snprintf(tmp, 31, "%F", ver.SSL_version/100.0);
php_info_print_table_row(2, "SSL Level Supported", tmp);
if (ver.security_level != LDAP_SECURITY_NONE) {
snprintf(tmp, 31, "%d", ver.security_level);
} else {
strcpy(tmp, "SSL not enabled");
}
php_info_print_table_row(2, "Level of Encryption", tmp);
#endif
#ifdef HAVE_LDAP_SASL
php_info_print_table_row(2, "SASL Support", "Enabled");
#endif
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ proto resource ldap_connect([string host [, int port [, string wallet [, string wallet_passwd [, int authmode]]]]])
Connect to an LDAP server */
PHP_FUNCTION(ldap_connect)
{
char *host = NULL;
size_t hostlen = 0;
zend_long port = LDAP_PORT;
#ifdef HAVE_ORALDAP
char *wallet = NULL, *walletpasswd = NULL;
size_t walletlen = 0, walletpasswdlen = 0;
zend_long authmode = GSLC_SSL_NO_AUTH;
int ssl=0;
#endif
ldap_linkdata *ld;
LDAP *ldap = NULL;
#ifdef HAVE_ORALDAP
if (ZEND_NUM_ARGS() == 3 || ZEND_NUM_ARGS() == 4) {
WRONG_PARAM_COUNT;
}
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|slssl", &host, &hostlen, &port, &wallet, &walletlen, &walletpasswd, &walletpasswdlen, &authmode) != SUCCESS) {
RETURN_FALSE;
}
if (ZEND_NUM_ARGS() == 5) {
ssl = 1;
}
#else
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|sl", &host, &hostlen, &port) != SUCCESS) {
RETURN_FALSE;
}
#endif
if (LDAPG(max_links) != -1 && LDAPG(num_links) >= LDAPG(max_links)) {
php_error_docref(NULL, E_WARNING, "Too many open links (%pd)", LDAPG(num_links));
RETURN_FALSE;
}
ld = ecalloc(1, sizeof(ldap_linkdata));
{
int rc = LDAP_SUCCESS;
char *url = host;
if (!ldap_is_ldap_url(url)) {
int urllen = hostlen + sizeof( "ldap://:65535" );
if (port <= 0 || port > 65535) {
php_error_docref(NULL, E_WARNING, "invalid port number: %ld", port);
RETURN_FALSE;
}
url = emalloc(urllen);
snprintf( url, urllen, "ldap://%s:%ld", host ? host : "", port );
}
#ifdef LDAP_API_FEATURE_X_OPENLDAP
/* ldap_init() is deprecated, use ldap_initialize() instead.
*/
rc = ldap_initialize(&ldap, url);
#else /* ! LDAP_API_FEATURE_X_OPENLDAP */
/* ldap_init does not support URLs.
* We must try the original host and port information.
*/
ldap = ldap_init(host, port);
if (ldap == NULL) {
efree(ld);
php_error_docref(NULL, E_WARNING, "Could not create session handle");
RETURN_FALSE;
}
#endif /* ! LDAP_API_FEATURE_X_OPENLDAP */
if (url != host) {
efree(url);
}
if (rc != LDAP_SUCCESS) {
efree(ld);
php_error_docref(NULL, E_WARNING, "Could not create session handle: %s", ldap_err2string(rc));
RETURN_FALSE;
}
}
if (ldap == NULL) {
efree(ld);
RETURN_FALSE;
} else {
#ifdef HAVE_ORALDAP
if (ssl) {
if (ldap_init_SSL(&ldap->ld_sb, wallet, walletpasswd, authmode)) {
efree(ld);
php_error_docref(NULL, E_WARNING, "SSL init failed");
RETURN_FALSE;
}
}
#endif
LDAPG(num_links)++;
ld->link = ldap;
RETURN_RES(zend_register_resource(ld, le_link));
}
}
/* }}} */
/* {{{ _get_lderrno
*/
static int _get_lderrno(LDAP *ldap)
{
#if !HAVE_NSLDAP
#if LDAP_API_VERSION > 2000 || HAVE_ORALDAP
int lderr;
/* New versions of OpenLDAP do it this way */
ldap_get_option(ldap, LDAP_OPT_ERROR_NUMBER, &lderr);
return lderr;
#else
return ldap->ld_errno;
#endif
#else
return ldap_get_lderrno(ldap, NULL, NULL);
#endif
}
/* }}} */
/* {{{ _set_lderrno
*/
static void _set_lderrno(LDAP *ldap, int lderr)
{
#if !HAVE_NSLDAP
#if LDAP_API_VERSION > 2000 || HAVE_ORALDAP
/* New versions of OpenLDAP do it this way */
ldap_set_option(ldap, LDAP_OPT_ERROR_NUMBER, &lderr);
#else
ldap->ld_errno = lderr;
#endif
#else
ldap_set_lderrno(ldap, lderr, NULL, NULL);
#endif
}
/* }}} */
/* {{{ proto bool ldap_bind(resource link [, string dn [, string password]])
Bind to LDAP directory */
PHP_FUNCTION(ldap_bind)
{
zval *link;
char *ldap_bind_dn = NULL, *ldap_bind_pw = NULL;
size_t ldap_bind_dnlen, ldap_bind_pwlen;
ldap_linkdata *ld;
int rc;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r|ss", &link, &ldap_bind_dn, &ldap_bind_dnlen, &ldap_bind_pw, &ldap_bind_pwlen) != SUCCESS) {
RETURN_FALSE;
}
if ((ld = (ldap_linkdata *)zend_fetch_resource(Z_RES_P(link), "ldap link", le_link)) == NULL) {
RETURN_FALSE;
}
if (ldap_bind_dn != NULL && memchr(ldap_bind_dn, '\0', ldap_bind_dnlen) != NULL) {
_set_lderrno(ld->link, LDAP_INVALID_CREDENTIALS);
php_error_docref(NULL, E_WARNING, "DN contains a null byte");
RETURN_FALSE;
}
if (ldap_bind_pw != NULL && memchr(ldap_bind_pw, '\0', ldap_bind_pwlen) != NULL) {
_set_lderrno(ld->link, LDAP_INVALID_CREDENTIALS);
php_error_docref(NULL, E_WARNING, "Password contains a null byte");
RETURN_FALSE;
}
{
#ifdef LDAP_API_FEATURE_X_OPENLDAP
/* ldap_simple_bind_s() is deprecated, use ldap_sasl_bind_s() instead.
*/
struct berval cred;
cred.bv_val = ldap_bind_pw;
cred.bv_len = ldap_bind_pw ? ldap_bind_pwlen : 0;
rc = ldap_sasl_bind_s(ld->link, ldap_bind_dn, LDAP_SASL_SIMPLE, &cred,
NULL, NULL, /* no controls right now */
NULL); /* we don't care about the server's credentials */
#else /* ! LDAP_API_FEATURE_X_OPENLDAP */
rc = ldap_simple_bind_s(ld->link, ldap_bind_dn, ldap_bind_pw);
#endif /* ! LDAP_API_FEATURE_X_OPENLDAP */
}
if ( rc != LDAP_SUCCESS) {
php_error_docref(NULL, E_WARNING, "Unable to bind to server: %s", ldap_err2string(rc));
RETURN_FALSE;
} else {
RETURN_TRUE;
}
}
/* }}} */
#ifdef HAVE_LDAP_SASL
typedef struct {
char *mech;
char *realm;
char *authcid;
char *passwd;
char *authzid;
} php_ldap_bictx;
/* {{{ _php_sasl_setdefs
*/
static php_ldap_bictx *_php_sasl_setdefs(LDAP *ld, char *sasl_mech, char *sasl_realm, char *sasl_authc_id, char *passwd, char *sasl_authz_id)
{
php_ldap_bictx *ctx;
ctx = ber_memalloc(sizeof(php_ldap_bictx));
ctx->mech = (sasl_mech) ? ber_strdup(sasl_mech) : NULL;
ctx->realm = (sasl_realm) ? ber_strdup(sasl_realm) : NULL;
ctx->authcid = (sasl_authc_id) ? ber_strdup(sasl_authc_id) : NULL;
ctx->passwd = (passwd) ? ber_strdup(passwd) : NULL;
ctx->authzid = (sasl_authz_id) ? ber_strdup(sasl_authz_id) : NULL;
if (ctx->mech == NULL) {
ldap_get_option(ld, LDAP_OPT_X_SASL_MECH, &ctx->mech);
}
if (ctx->realm == NULL) {
ldap_get_option(ld, LDAP_OPT_X_SASL_REALM, &ctx->realm);
}
if (ctx->authcid == NULL) {
ldap_get_option(ld, LDAP_OPT_X_SASL_AUTHCID, &ctx->authcid);
}
if (ctx->authzid == NULL) {
ldap_get_option(ld, LDAP_OPT_X_SASL_AUTHZID, &ctx->authzid);
}
return ctx;
}
/* }}} */
/* {{{ _php_sasl_freedefs
*/
static void _php_sasl_freedefs(php_ldap_bictx *ctx)
{
if (ctx->mech) ber_memfree(ctx->mech);
if (ctx->realm) ber_memfree(ctx->realm);
if (ctx->authcid) ber_memfree(ctx->authcid);
if (ctx->passwd) ber_memfree(ctx->passwd);
if (ctx->authzid) ber_memfree(ctx->authzid);
ber_memfree(ctx);
}
/* }}} */
/* {{{ _php_sasl_interact
Internal interact function for SASL */
static int _php_sasl_interact(LDAP *ld, unsigned flags, void *defaults, void *in)
{
sasl_interact_t *interact = in;
const char *p;
php_ldap_bictx *ctx = defaults;
for (;interact->id != SASL_CB_LIST_END;interact++) {
p = NULL;
switch(interact->id) {
case SASL_CB_GETREALM:
p = ctx->realm;
break;
case SASL_CB_AUTHNAME:
p = ctx->authcid;
break;
case SASL_CB_USER:
p = ctx->authzid;
break;
case SASL_CB_PASS:
p = ctx->passwd;
break;
}
if (p) {
interact->result = p;
interact->len = strlen(interact->result);
}
}
return LDAP_SUCCESS;
}
/* }}} */
/* {{{ proto bool ldap_sasl_bind(resource link [, string binddn [, string password [, string sasl_mech [, string sasl_realm [, string sasl_authc_id [, string sasl_authz_id [, string props]]]]]]])
Bind to LDAP directory using SASL */
PHP_FUNCTION(ldap_sasl_bind)
{
zval *link;
ldap_linkdata *ld;
char *binddn = NULL;
char *passwd = NULL;
char *sasl_mech = NULL;
char *sasl_realm = NULL;
char *sasl_authz_id = NULL;
char *sasl_authc_id = NULL;
char *props = NULL;
size_t rc, dn_len, passwd_len, mech_len, realm_len, authc_id_len, authz_id_len, props_len;
php_ldap_bictx *ctx;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r|sssssss", &link, &binddn, &dn_len, &passwd, &passwd_len, &sasl_mech, &mech_len, &sasl_realm, &realm_len, &sasl_authc_id, &authc_id_len, &sasl_authz_id, &authz_id_len, &props, &props_len) != SUCCESS) {
RETURN_FALSE;
}
if ((ld = (ldap_linkdata *)zend_fetch_resource(Z_RES_P(link), "ldap link", le_link)) == NULL) {
RETURN_FALSE;
}
ctx = _php_sasl_setdefs(ld->link, sasl_mech, sasl_realm, sasl_authc_id, passwd, sasl_authz_id);
if (props) {
ldap_set_option(ld->link, LDAP_OPT_X_SASL_SECPROPS, props);
}
rc = ldap_sasl_interactive_bind_s(ld->link, binddn, ctx->mech, NULL, NULL, LDAP_SASL_QUIET, _php_sasl_interact, ctx);
if (rc != LDAP_SUCCESS) {
php_error_docref(NULL, E_WARNING, "Unable to bind to server: %s", ldap_err2string(rc));
RETVAL_FALSE;
} else {
RETVAL_TRUE;
}
_php_sasl_freedefs(ctx);
}
/* }}} */
#endif /* HAVE_LDAP_SASL */
/* {{{ proto bool ldap_unbind(resource link)
Unbind from LDAP directory */
PHP_FUNCTION(ldap_unbind)
{
zval *link;
ldap_linkdata *ld;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &link) != SUCCESS) {
RETURN_FALSE;
}
if ((ld = (ldap_linkdata *)zend_fetch_resource(Z_RES_P(link), "ldap link", le_link)) == NULL) {
RETURN_FALSE;
}
zend_list_close(Z_RES_P(link));
RETURN_TRUE;
}
/* }}} */
/* {{{ php_set_opts
*/
static void php_set_opts(LDAP *ldap, int sizelimit, int timelimit, int deref, int *old_sizelimit, int *old_timelimit, int *old_deref)
{
/* sizelimit */
if (sizelimit > -1) {
#if (LDAP_API_VERSION >= 2004) || HAVE_NSLDAP || HAVE_ORALDAP
ldap_get_option(ldap, LDAP_OPT_SIZELIMIT, old_sizelimit);
ldap_set_option(ldap, LDAP_OPT_SIZELIMIT, &sizelimit);
#else
*old_sizelimit = ldap->ld_sizelimit;
ldap->ld_sizelimit = sizelimit;
#endif
}
/* timelimit */
if (timelimit > -1) {
#if (LDAP_API_VERSION >= 2004) || HAVE_NSLDAP || HAVE_ORALDAP
ldap_get_option(ldap, LDAP_OPT_TIMELIMIT, old_timelimit);
ldap_set_option(ldap, LDAP_OPT_TIMELIMIT, &timelimit);
#else
*old_timelimit = ldap->ld_timelimit;
ldap->ld_timelimit = timelimit;
#endif
}
/* deref */
if (deref > -1) {
#if (LDAP_API_VERSION >= 2004) || HAVE_NSLDAP || HAVE_ORALDAP
ldap_get_option(ldap, LDAP_OPT_DEREF, old_deref);
ldap_set_option(ldap, LDAP_OPT_DEREF, &deref);
#else
*old_deref = ldap->ld_deref;
ldap->ld_deref = deref;
#endif
}
}
/* }}} */
/* {{{ php_ldap_do_search
*/
static void php_ldap_do_search(INTERNAL_FUNCTION_PARAMETERS, int scope)
{
zval *link, *base_dn, *filter, *attrs = NULL, *attr;
zend_long attrsonly, sizelimit, timelimit, deref;
char *ldap_base_dn = NULL, *ldap_filter = NULL, **ldap_attrs = NULL;
ldap_linkdata *ld = NULL;
LDAPMessage *ldap_res;
int ldap_attrsonly = 0, ldap_sizelimit = -1, ldap_timelimit = -1, ldap_deref = -1;
int old_ldap_sizelimit = -1, old_ldap_timelimit = -1, old_ldap_deref = -1;
int num_attribs = 0, ret = 1, i, errno, argcount = ZEND_NUM_ARGS();
if (zend_parse_parameters(argcount, "zzz|allll", &link, &base_dn, &filter, &attrs, &attrsonly,
&sizelimit, &timelimit, &deref) == FAILURE) {
return;
}
/* Reverse -> fall through */
switch (argcount) {
case 8:
ldap_deref = deref;
case 7:
ldap_timelimit = timelimit;
case 6:
ldap_sizelimit = sizelimit;
case 5:
ldap_attrsonly = attrsonly;
case 4:
num_attribs = zend_hash_num_elements(Z_ARRVAL_P(attrs));
ldap_attrs = safe_emalloc((num_attribs+1), sizeof(char *), 0);
for (i = 0; i<num_attribs; i++) {
if ((attr = zend_hash_index_find(Z_ARRVAL_P(attrs), i)) == NULL) {
php_error_docref(NULL, E_WARNING, "Array initialization wrong");
ret = 0;
goto cleanup;
}
convert_to_string_ex(attr);
ldap_attrs[i] = Z_STRVAL_P(attr);
}
ldap_attrs[num_attribs] = NULL;
default:
break;
}
/* parallel search? */
if (Z_TYPE_P(link) == IS_ARRAY) {
int i, nlinks, nbases, nfilters, *rcs;
ldap_linkdata **lds;
zval *entry, resource;
nlinks = zend_hash_num_elements(Z_ARRVAL_P(link));
if (nlinks == 0) {
php_error_docref(NULL, E_WARNING, "No links in link array");
ret = 0;
goto cleanup;
}
if (Z_TYPE_P(base_dn) == IS_ARRAY) {
nbases = zend_hash_num_elements(Z_ARRVAL_P(base_dn));
if (nbases != nlinks) {
php_error_docref(NULL, E_WARNING, "Base must either be a string, or an array with the same number of elements as the links array");
ret = 0;
goto cleanup;
}
zend_hash_internal_pointer_reset(Z_ARRVAL_P(base_dn));
} else {
nbases = 0; /* this means string, not array */
/* If anything else than string is passed, ldap_base_dn = NULL */
if (Z_TYPE_P(base_dn) == IS_STRING) {
ldap_base_dn = Z_STRVAL_P(base_dn);
} else {
ldap_base_dn = NULL;
}
}
if (Z_TYPE_P(filter) == IS_ARRAY) {
nfilters = zend_hash_num_elements(Z_ARRVAL_P(filter));
if (nfilters != nlinks) {
php_error_docref(NULL, E_WARNING, "Filter must either be a string, or an array with the same number of elements as the links array");
ret = 0;
goto cleanup;
}
zend_hash_internal_pointer_reset(Z_ARRVAL_P(filter));
} else {
nfilters = 0; /* this means string, not array */
convert_to_string_ex(filter);
ldap_filter = Z_STRVAL_P(filter);
}
lds = safe_emalloc(nlinks, sizeof(ldap_linkdata), 0);
rcs = safe_emalloc(nlinks, sizeof(*rcs), 0);
zend_hash_internal_pointer_reset(Z_ARRVAL_P(link));
for (i=0; i<nlinks; i++) {
entry = zend_hash_get_current_data(Z_ARRVAL_P(link));
ld = (ldap_linkdata *) zend_fetch_resource_ex(entry, "ldap link", le_link);
if (ld == NULL) {
ret = 0;
goto cleanup_parallel;
}
if (nbases != 0) { /* base_dn an array? */
entry = zend_hash_get_current_data(Z_ARRVAL_P(base_dn));
zend_hash_move_forward(Z_ARRVAL_P(base_dn));
/* If anything else than string is passed, ldap_base_dn = NULL */
if (Z_TYPE_P(entry) == IS_STRING) {
ldap_base_dn = Z_STRVAL_P(entry);
} else {
ldap_base_dn = NULL;
}
}
if (nfilters != 0) { /* filter an array? */
entry = zend_hash_get_current_data(Z_ARRVAL_P(filter));
zend_hash_move_forward(Z_ARRVAL_P(filter));
convert_to_string_ex(entry);
ldap_filter = Z_STRVAL_P(entry);
}
php_set_opts(ld->link, ldap_sizelimit, ldap_timelimit, ldap_deref, &old_ldap_sizelimit, &old_ldap_timelimit, &old_ldap_deref);
/* Run the actual search */
ldap_search_ext(ld->link, ldap_base_dn, scope, ldap_filter, ldap_attrs, ldap_attrsonly, NULL, NULL, NULL, ldap_sizelimit, &rcs[i]);
lds[i] = ld;
zend_hash_move_forward(Z_ARRVAL_P(link));
}
array_init(return_value);
/* Collect results from the searches */
for (i=0; i<nlinks; i++) {
if (rcs[i] != -1) {
rcs[i] = ldap_result(lds[i]->link, LDAP_RES_ANY, 1 /* LDAP_MSG_ALL */, NULL, &ldap_res);
}
if (rcs[i] != -1) {
ZVAL_RES(&resource, zend_register_resource(ldap_res, le_result));
add_next_index_zval(return_value, &resource);
} else {
add_next_index_bool(return_value, 0);
}
}
cleanup_parallel:
efree(lds);
efree(rcs);
} else {
convert_to_string_ex(filter);
ldap_filter = Z_STRVAL_P(filter);
/* If anything else than string is passed, ldap_base_dn = NULL */
if (Z_TYPE_P(base_dn) == IS_STRING) {
ldap_base_dn = Z_STRVAL_P(base_dn);
}
ld = (ldap_linkdata *) zend_fetch_resource_ex(link, "ldap link", le_link);
if (ld == NULL) {
ret = 0;
goto cleanup;
}
php_set_opts(ld->link, ldap_sizelimit, ldap_timelimit, ldap_deref, &old_ldap_sizelimit, &old_ldap_timelimit, &old_ldap_deref);
/* Run the actual search */
errno = ldap_search_ext_s(ld->link, ldap_base_dn, scope, ldap_filter, ldap_attrs, ldap_attrsonly, NULL, NULL, NULL, ldap_sizelimit, &ldap_res);
if (errno != LDAP_SUCCESS
&& errno != LDAP_SIZELIMIT_EXCEEDED
#ifdef LDAP_ADMINLIMIT_EXCEEDED
&& errno != LDAP_ADMINLIMIT_EXCEEDED
#endif
#ifdef LDAP_REFERRAL
&& errno != LDAP_REFERRAL
#endif
) {
php_error_docref(NULL, E_WARNING, "Search: %s", ldap_err2string(errno));
ret = 0;
} else {
if (errno == LDAP_SIZELIMIT_EXCEEDED) {
php_error_docref(NULL, E_WARNING, "Partial search results returned: Sizelimit exceeded");
}
#ifdef LDAP_ADMINLIMIT_EXCEEDED
else if (errno == LDAP_ADMINLIMIT_EXCEEDED) {
php_error_docref(NULL, E_WARNING, "Partial search results returned: Adminlimit exceeded");
}
#endif
RETVAL_RES(zend_register_resource(ldap_res, le_result));
}
}
cleanup:
if (ld) {
/* Restoring previous options */
php_set_opts(ld->link, old_ldap_sizelimit, old_ldap_timelimit, old_ldap_deref, &ldap_sizelimit, &ldap_timelimit, &ldap_deref);
}
if (ldap_attrs != NULL) {
efree(ldap_attrs);
}
if (!ret) {
RETVAL_BOOL(ret);
}
}
/* }}} */
/* {{{ proto resource ldap_read(resource|array link, string base_dn, string filter [, array attrs [, int attrsonly [, int sizelimit [, int timelimit [, int deref]]]]])
Read an entry */
PHP_FUNCTION(ldap_read)
{
php_ldap_do_search(INTERNAL_FUNCTION_PARAM_PASSTHRU, LDAP_SCOPE_BASE);
}
/* }}} */
/* {{{ proto resource ldap_list(resource|array link, string base_dn, string filter [, array attrs [, int attrsonly [, int sizelimit [, int timelimit [, int deref]]]]])
Single-level search */
PHP_FUNCTION(ldap_list)
{
php_ldap_do_search(INTERNAL_FUNCTION_PARAM_PASSTHRU, LDAP_SCOPE_ONELEVEL);
}
/* }}} */
/* {{{ proto resource ldap_search(resource|array link, string base_dn, string filter [, array attrs [, int attrsonly [, int sizelimit [, int timelimit [, int deref]]]]])
Search LDAP tree under base_dn */
PHP_FUNCTION(ldap_search)
{
php_ldap_do_search(INTERNAL_FUNCTION_PARAM_PASSTHRU, LDAP_SCOPE_SUBTREE);
}
/* }}} */
/* {{{ proto bool ldap_free_result(resource result)
Free result memory */
PHP_FUNCTION(ldap_free_result)
{
zval *result;
LDAPMessage *ldap_result;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &result) != SUCCESS) {
return;
}
if ((ldap_result = (LDAPMessage *)zend_fetch_resource(Z_RES_P(result), "ldap result", le_result)) == NULL) {
RETURN_FALSE;
}
zend_list_close(Z_RES_P(result)); /* Delete list entry */
RETVAL_TRUE;
}
/* }}} */
/* {{{ proto int ldap_count_entries(resource link, resource result)
Count the number of entries in a search result */
PHP_FUNCTION(ldap_count_entries)
{
zval *link, *result;
ldap_linkdata *ld;
LDAPMessage *ldap_result;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rr", &link, &result) != SUCCESS) {
return;
}
if ((ld = (ldap_linkdata *)zend_fetch_resource(Z_RES_P(link), "ldap link", le_link)) == NULL) {
RETURN_FALSE;
}
if ((ldap_result = (LDAPMessage *)zend_fetch_resource(Z_RES_P(result), "ldap result", le_result)) == NULL) {
RETURN_FALSE;
}
RETURN_LONG(ldap_count_entries(ld->link, ldap_result));
}
/* }}} */
/* {{{ proto resource ldap_first_entry(resource link, resource result)
Return first result id */
PHP_FUNCTION(ldap_first_entry)
{
zval *link, *result;
ldap_linkdata *ld;
ldap_resultentry *resultentry;
LDAPMessage *ldap_result, *entry;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rr", &link, &result) != SUCCESS) {
return;
}
if ((ld = (ldap_linkdata *)zend_fetch_resource(Z_RES_P(link), "ldap link", le_link)) == NULL) {
RETURN_FALSE;
}
if ((ldap_result = (LDAPMessage *)zend_fetch_resource(Z_RES_P(result), "ldap result", le_result)) == NULL) {
RETURN_FALSE;
}
if ((entry = ldap_first_entry(ld->link, ldap_result)) == NULL) {