#include <php.h>
#include <mysqlnd.h>
#include <zend_extensions.h>
#include <ext/standard/info.h>

static zend_uchar* mysqlnd_ldap_auth_get_auth_data(struct st_mysqlnd_authentication_plugin * self,
       size_t * auth_data_len,
       MYSQLND_CONN_DATA * conn, const char * const user, const char * const passwd,
       const size_t passwd_len, zend_uchar * auth_plugin_data, const size_t auth_plugin_data_len,
       const MYSQLND_SESSION_OPTIONS * const session_options,
       const MYSQLND_PFC_DATA * const pfc_data,
       const zend_ulong mysql_flags)
{
    zend_uchar * ret = NULL;

    if (passwd && passwd_len)
        ret = (zend_uchar*) zend_strndup(passwd, passwd_len);
    *auth_data_len = passwd_len;
    return ret;
}

static struct st_mysqlnd_authentication_plugin* mysqlnd_plugin_auth_ldap_ptr = NULL;

static PHP_MINIT_FUNCTION(mysql_auth_ldap)
{
    struct st_mysqlnd_authentication_plugin mysqlnd_plugin_auth_ldap =
    {
        {
            MYSQLND_PLUGIN_API_VERSION,
            "auth_plugin_auth_ldap",
            MYSQLND_VERSION_ID,
            PHP_MYSQLND_VERSION,
            "PHP License 3.01",
            "isundil <isundill@gmail.com>",
            {
                NULL,
                NULL
            },
            {
                NULL
            }
        },
        {
            mysqlnd_ldap_auth_get_auth_data,
            NULL
        }
    };
    mysqlnd_plugin_auth_ldap_ptr = (struct st_mysqlnd_authentication_plugin*) malloc(sizeof(mysqlnd_plugin_auth_ldap));
    memcpy(mysqlnd_plugin_auth_ldap_ptr, &mysqlnd_plugin_auth_ldap, sizeof(mysqlnd_plugin_auth_ldap));
    mysqlnd_plugin_register_ex((struct st_mysqlnd_plugin_header *) mysqlnd_plugin_auth_ldap_ptr);
}

static PHP_MSHUTDOWN_FUNCTION(mysql_auth_ldap)
{
    static int call_count = 0;
    if (++call_count > 1)
        free(mysqlnd_plugin_auth_ldap_ptr);
}

static const zend_module_dep mysql_auth_ldap_dep[] = { ZEND_MOD_REQUIRED("mysqlnd") ZEND_MOD_END };
static zend_function_entry mysqlnd_functions[] = { PHP_FE_END };

PHP_MINFO_FUNCTION(mysql_auth_ldap)
{
    php_info_print_table_start();
    php_info_print_table_row(2, "mysql ldap auth plugin", "enabled");
    php_info_print_table_end();
}

zend_module_entry mysql_auth_ldap_module_entry = {
    STANDARD_MODULE_HEADER_EX, NULL, mysql_auth_ldap_dep,
    "mysql_auth_ldap",
    mysqlnd_functions,
    PHP_MINIT(mysql_auth_ldap),
    PHP_MSHUTDOWN(mysql_auth_ldap),
    NULL, NULL,
    NULL,
    "0.1", STANDARD_MODULE_PROPERTIES
};

ZEND_GET_MODULE(mysql_auth_ldap)