<?php

/*
 * Copyright 2005-2015 Centreon
 * Centreon is developped by : Julien Mathis and Romain Le Merlus under
 * GPL Licence 2.0.
 *
 * 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 2 of the License.
 *
 * 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, see <http://www.gnu.org/licenses>.
 *
 * Linking this program statically or dynamically with other modules is making a
 * combined work based on this program. Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this program give Centreon
 * permission to link this program with independent modules to produce an executable,
 * regardless of the license terms of these independent modules, and to copy and
 * distribute the resulting executable under terms of Centreon choice, provided that
 * Centreon also meet, for each linked independent module, the terms  and conditions
 * of the license of that module. An independent module is a module which is not
 * derived from this program. If you modify this program, you may extend this
 * exception to your version of the program, but you are not obliged to do so. If you
 * do not wish to do so, delete this exception statement from your version.
 *
 * For more information : contact@centreon.com
 *
 */

if (!isset($centreon)) {
    exit();
}

if (!function_exists("myDecodeCommand")) {
    function myDecodeCommand($arg)
    {
        $arg = str_replace('#BR#', "\\n", $arg ?? '');
        $arg = str_replace('#T#', "\\t", $arg);
        $arg = str_replace('#R#', "\\r", $arg);
        $arg = str_replace('#S#', "/", $arg);
        $arg = str_replace('#BS#', "\\", $arg);
        $arg = str_replace('#P#', "|", $arg);
        return (html_entity_decode($arg));
    }

}

function getCommandName($command_id)
{
    global $pearDB;

    $query = "SELECT `command_name` FROM `command` WHERE `command_id` = " . $pearDB->escape($command_id);
    $dbResult = $pearDB->query($query);
    $command = $dbResult->fetch();
    if (isset($command['command_name'])) {
        return $command['command_name'];
    } else {
        return null;
    }
}

function testCmdExistence($name = null)
{
    global $pearDB, $form, $centreon;
    $id = null;

    if (isset($form)) {
        $id = $form->getSubmitValue('command_id');
    }

    $query = "SELECT `command_name`, `command_id` FROM `command` WHERE `command_name` = '" .
        $pearDB->escape($centreon->checkIllegalChar($name)) . "'";
    $dbResult = $pearDB->query($query);
    $command = $dbResult->fetch();
    if ($dbResult->rowCount() >= 1 && $command["command_id"] == $id) {
        /*
         * Mofication case
         */
        return true;
    } elseif ($dbResult->rowCount() >= 1 && $command["command_id"] != $id) {
        /*
         * Duplicate case
         */
        return false;
    } else {
        return true;
    }
}

function deleteCommandInDB($commands = array())
{
    global $pearDB, $centreon;

    foreach ($commands as $key => $value) {
        $query = "SELECT command_name FROM `command` WHERE `command_id` = '" . (int)$key . "' LIMIT 1";
        $dbResult2 = $pearDB->query($query);
        $row = $dbResult2->fetch();
        $pearDB->query("DELETE FROM `command` WHERE `command_id` = '" . (int)$key . "'");
        $centreon->CentreonLogAction->insertLog("command", $key, $row['command_name'], "d");
    }
}

function multipleCommandInDB($commands = array(), $nbrDup = array())
{
    global $pearDB, $centreon;

    foreach ($commands as $key => $value) {
        $dbResult = $pearDB->query("SELECT * FROM `command` WHERE `command_id` = '" . (int)$key . "' LIMIT 1");

        $row = $dbResult->fetch();
        $row["command_id"] = null;

        for ($i = 1; $i <= $nbrDup[$key]; $i++) {
            $val = null;

            foreach ($row as $key2 => $value2) {
                $value2 = is_int($value2) ? (string) $value2 : $value2;
                $key2 == "command_name" ? ($command_name = $value2 = $value2 . "_" . $i) : null;
                $val ? $val .= ($value2 != null ? (", '" . $pearDB->escape($value2) . "'")
                    : ", NULL") : $val .= ($value2 != null ? ("'" . $pearDB->escape($value2) . "'") : "NULL");
                if ($key2 != "command_id") {
                    $fields[$key2] = $pearDB->escape($value2);
                }
                if (isset($command_name)) {
                    $fields["command_name"] = $command_name;
                }
            }

            if (isset($command_name) && testCmdExistence($command_name)) {
                $val ? $rq = "INSERT INTO `command` VALUES (" . $val . ")" : $rq = null;
                $dbResult = $pearDB->query($rq);

                /*
                 * Get Max ID
                 */
                $dbResult = $pearDB->query("SELECT MAX(command_id) FROM `command`");
                $cmd_id = $dbResult->fetch();
                $centreon->CentreonLogAction->insertLog(
                    "command",
                    $cmd_id["MAX(command_id)"],
                    $command_name,
                    "a",
                    $fields
                );

                /*
                 * Duplicate Arguments
                 */
                duplicateArgDesc($cmd_id["MAX(command_id)"], $key);
            }
        }
    }
}

function updateCommandInDB($cmd_id = null)
{
    if (!$cmd_id) {
        return;
    }
    updateCommand($cmd_id);
}

function updateCommand($cmd_id = null, $params = array())
{
    global $form, $pearDB, $centreon;

    if (!$cmd_id) {
        return;
    }

    $ret = array();
    if (count($params)) {
        $ret = $params;
    } else {
        $ret = $form->getSubmitValues();
    }

    $ret["command_name"] = $centreon->checkIllegalChar($ret["command_name"]);
    if (!isset($ret['enable_shell'])) {
        $ret['enable_shell'] = 0;
    }

    $rq = "UPDATE `command` SET `command_name` = :command_name, " .
        "`command_line` = :command_line, " .
        "`enable_shell` = :enable_shell, " .
        "`command_example` = :command_example, " .
        "`command_type` = :command_type, " .
        "`command_comment` = :command_comment, " .
        "`graph_id` = :graph_id, " .
        "`connector_id` = :connector_id, " .
        "`command_activate` = :command_activate " .
        "WHERE `command_id` = :command_id";

    $ret["connectors"] = (isset($ret["connectors"]) && !empty($ret["connectors"])) ? $ret["connectors"] : null;
    $ret["command_activate"]["command_activate"] = (isset($ret["command_activate"]["command_activate"]))
            ? $ret["command_activate"]["command_activate"]
            : null;

    $sth = $pearDB->prepare($rq);
    $sth->bindParam(':command_name', $ret["command_name"], PDO::PARAM_STR);
    $sth->bindParam(':command_line', $ret["command_line"], PDO::PARAM_STR);
    $sth->bindParam(':enable_shell', $ret["enable_shell"], PDO::PARAM_INT);
    $sth->bindParam(':command_example', $ret["command_example"], PDO::PARAM_STR);
    $sth->bindParam(':command_type', $ret["command_type"]["command_type"], PDO::PARAM_INT);
    $sth->bindParam(':command_comment', $ret["command_comment"], PDO::PARAM_STR);
    $sth->bindParam(':graph_id', $ret["graph_id"], PDO::PARAM_INT);
    $sth->bindParam(':connector_id', $ret["connectors"], PDO::PARAM_INT);
    $sth->bindParam(':command_activate', $ret["command_activate"]["command_activate"], PDO::PARAM_STR);
    $sth->bindParam(':command_id', $cmd_id, PDO::PARAM_INT);
    $sth->execute();

    insertArgDesc($cmd_id, $ret);

    insertMacrosDesc($cmd_id, $ret);

    /* Prepare value for changelog */
    $fields = CentreonLogAction::prepareChanges($ret);
    $centreon->CentreonLogAction->insertLog("command", $cmd_id, $pearDB->escape($ret["command_name"]), "c", $fields);
}

function insertCommandInDB($ret = array())
{
    $cmd_id = insertCommand($ret);
    return ($cmd_id);
}

function insertCommand($ret = array())
{
    global $form, $pearDB, $centreon, $isCloudPlatform;

    if (!count($ret)) {
        $ret = $form->getSubmitValues();
    }

    $ret["command_name"] = $centreon->checkIllegalChar($ret["command_name"]);
    if (!isset($ret['enable_shell'])) {
        $ret['enable_shell'] = 0;
    }

    $commandType = $isCloudPlatform ? $ret['type'] : $ret["command_type"]["command_type"];

    /*
     * Insert
     */
    $rq = "INSERT INTO `command` (`command_name`, `command_line`, `enable_shell`, `command_example`, `command_type`,
        `graph_id`, `connector_id`, `command_comment`, `command_activate`) ";
    $rq .= "VALUES (
            '" . $pearDB->escape($ret["command_name"]) . "',
            '" . $pearDB->escape($ret["command_line"]) . "',
            " . (int)$ret['enable_shell'] . ",
            '" . $pearDB->escape($ret["command_example"]) . "',
            " . (int) $commandType . ",
            " . (!empty($ret["graph_id"]) ? (int)$ret['graph_id'] : "NULL") . ",
            " . (!empty($ret["connectors"]) ? (int)$ret['connectors'] : "NULL") . ",
            '" . $pearDB->escape($ret["command_comment"]) . "',
            '" . $pearDB->escape($ret["command_activate"]["command_activate"]) . "'";
    $rq .= ")";

    $pearDB->query($rq);

    /*
     * Get Max ID
     */
    $max_id = getMaxID();

    /* Prepare value for changelog */
    $fields = CentreonLogAction::prepareChanges($ret);
    $centreon->CentreonLogAction->insertLog("command", $max_id, $pearDB->escape($ret["command_name"]), "a", $fields);

    insertArgDesc($max_id, $ret);
    insertMacrosDesc($max_id, $ret);

    return ($max_id);
}

function getMaxID()
{
    global $pearDB;

    $dbResult = $pearDB->query("SELECT MAX(command_id) FROM `command`");
    $row = $dbResult->fetch();
    return $row['MAX(command_id)'];
}

function return_plugin($rep)
{
    global $centreon;

    $plugins = array();
    $is_not_a_plugin = array(
        "." => 1,
        ".." => 1,
        "oreon.conf" => 1,
        "oreon.pm" => 1,
        "utils.pm" => 1,
        "negate" => 1,
        "centreon.conf" => 1,
        "centreon.pm" => 1
    );
    $handle[$rep] = opendir($rep);
    while (false != ($filename = readdir($handle[$rep]))) {
        if ($filename != "." && $filename != "..") {
            if (is_dir($rep . $filename)) {
                $plg_tmp = return_plugin($rep . "/" . $filename, $handle[$rep]);
                $plugins = array_merge($plugins, $plg_tmp);
                unset($plg_tmp);
            } elseif (!isset($is_not_a_plugin[$filename]) &&
                substr($filename, -1) != "~" &&
                substr($filename, -1) != "#"
            ) {
                $key = substr($rep . "/" . $filename, strlen($centreon->optGen["nagios_path_plugins"]));
                $plugins[$key] = $key;
            }
        }
    }
    closedir($handle[$rep]);
    return ($plugins);
}

/*
 *  Inserts descriptions of arguments
 */

function insertArgDesc($cmd_id, $ret = null)
{
    global $pearDB;

    if (!count($ret)) {
        $ret = $form->getSubmitValues();
    }

    $pearDB->query("DELETE FROM `command_arg_description` WHERE cmd_id = '" . (int)$cmd_id . "'");
    $query = "INSERT INTO `command_arg_description` (cmd_id, macro_name, macro_description) VALUES ";
    if (isset($ret['listOfArg']) && $ret['listOfArg']) {
        $tab1 = preg_split("/\\n/", $ret['listOfArg']);
        foreach ($tab1 as $key => $value) {
            $tab2 = preg_split("/\ \:\ /", $value, 2);
            $query .= "('" . $pearDB->escape($cmd_id) . "', '" . $pearDB->escape($tab2[0]) . "', '" .
                $pearDB->escape($tab2[1]) . "'),";
        }
        $query = trim($query, ",");
        $pearDB->query($query);
    }
}

/**
 * Duplicate The argument description of a command
 * @param $cmd_id
 * @param $ret
 * @return unknown_type
 */
function duplicateArgDesc($new_cmd_id, $cmd_id)
{
    global $pearDB;

    $query = "INSERT INTO `command_arg_description` (cmd_id, macro_name, macro_description)
                    SELECT '" . (int)$new_cmd_id . "', macro_name, macro_description
                    FROM command_arg_description WHERE cmd_id = '" . (int)$cmd_id . "'";
    $pearDB->query($query);
}

/**
 * Return the number of time a command is used as a host command check
 * @param $command_id
 * @return unknown_type
 */
function getHostNumberUse($command_id)
{
    global $pearDB;

    $query = "SELECT count(*) AS number FROM host " .
        "WHERE command_command_id = '" . (int)$command_id . "' AND host_register = '1'";
    $dbResult = $pearDB->query($query);
    $data = $dbResult->fetch();
    return $data['number'];
}

/**
 * Return the number of time a command is used as a service command check
 * @param $command_id
 * @return unknown_type
 */
function getServiceNumberUse($command_id)
{
    global $pearDB;

    $query = "SELECT count(*) AS number FROM service " .
        "WHERE command_command_id = '" . (int)$command_id . "' AND service_register = '1'";
    $dbResult = $pearDB->query($query);
    $data = $dbResult->fetch();
    return $data['number'];
}

/**
 * Return the number of time a command is used as a host command check
 * @param $command_id
 * @return unknown_type
 */
function getHostTPLNumberUse($command_id)
{
    global $pearDB;

    $query = "SELECT count(*) AS number FROM host " .
        "WHERE command_command_id = '" . (int)$command_id . "' AND host_register = '0'";
    $dbResult = $pearDB->query($query);
    $data = $dbResult->fetch();
    return $data['number'];
}

/**
 * Return the number of time a command is used as a service command check
 * @param $command_id
 * @return unknown_type
 */
function getServiceTPLNumberUse($command_id)
{
    global $pearDB;

    $query = "SELECT count(*) AS number FROM service " .
        "WHERE command_command_id = '" . (int)$command_id . "' AND service_register = '0'";
    $dbResult = $pearDB->query($query);
    $data = $dbResult->fetch();
    return $data['number'];
}

/**
 * Get command ID by name
 *
 * @param string $name
 * @return int
 */
function getCommandIdByName($name)
{
    global $pearDB;

    $id = 0;
    $res = $pearDB->query("SELECT command_id FROM command WHERE command_name = '" . $pearDB->escape($name) . "'");
    if ($res->rowCount()) {
        $row = $res->fetch();
        $id = $row['command_id'];
    }
    return $id;
}

/**
 * Inserts descriptions of macros rattached to the command
 *
 * @global type $pearDB
 * @param type $cmd
 * @param type $ret
 *
 */
function insertMacrosDesc($cmd, $ret)
{
    global $pearDB;

    $arr = array("HOST" => "1", "SERVICE" => "2");
    if (!count($ret)) {
        $ret = $form->getSubmitValues();
    }

    if (isset($ret['listOfMacros']) && $ret['listOfMacros']) {
        $tab1 = preg_split("/\\n/", $ret['listOfMacros']);

        $query = "DELETE FROM `on_demand_macro_command`
                  WHERE `command_command_id` = " . (int)$cmd;
        $pearDB->query($query);

        foreach ($tab1 as $key => $value) {
            $tab2 = preg_split("/\ \:\ /", $value, 2);
            $str = trim(substr($tab2[0], 6));
            $sDesc = trim(str_replace("\r", "", $tab2[1] ?? ''));
            $pos = strpos($str, ")");
            if ($pos > 0) {
                $sType = substr($str, 1, $pos - 1);
                $sName = trim(substr($str, $pos + 1));
            } else {
                $sType = "1";
                $sName = trim($str);
            }

            if (!empty($sName)) {
                $sQueryInsert = "INSERT INTO `on_demand_macro_command`
                    (`command_command_id`, `command_macro_name`, `command_macro_desciption`, `command_macro_type`)
                    VALUES (" . (int)$cmd . ",
                        '" . $pearDB->escape($sName) . "',
                        '" . $pearDB->escape($sDesc) . "',
                        '" . $arr[$sType] . "')";
                $pearDB->query($sQueryInsert);
            }
        }
    }
}

/**
 * Change status command
 *
 * @param ini $command_id
 * @param array $commands
 * @param int $status
 *
 */
function changeCommandStatus($command_id, $commands, $status)
{
    global $pearDB, $centreon;

    if (isset($command_id)) {
        $query = "UPDATE `command` SET command_activate = '" . $pearDB->escape($status) . "' " .
            "WHERE command_id = '" . $pearDB->escape($command_id) . "'";
        $pearDB->query($query);
        $centreon->CentreonLogAction->insertLog(
            "command",
            $command_id,
            getCommandName($command_id),
            $status ? "enable" : "disable"
        );
    } else {
        foreach ($commands as $command_id => $flag) {
            if (isset($command_id) && $command_id) {
                $query = "UPDATE `command` SET command_activate = '" . $pearDB->escape($status) . "' " .
                    "WHERE command_id = '" . $pearDB->escape($command_id) . "'";
                $pearDB->query($query);

                $centreon->CentreonLogAction->insertLog(
                    "command",
                    $command_id,
                    getCommandName($command_id),
                    $status ? "enable" : "disable"
                );
            }
        }
    }
}
