<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2010 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list
// 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 for version 2.
// 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.
if (check_acl($id_user, 0, 'ER')) {
    $groups = users_get_groups($id_user, 'ER');
} else if (check_acl($id_user, 0, 'EW')) {
    $groups = users_get_groups($id_user, 'EW');
} else if (check_acl($id_user, 0, 'EM')) {
    $groups = users_get_groups($id_user, 'EM');
}


$propagate = db_get_value('propagate', 'tgrupo', 'id_grupo', $id_group);

if ($id_group > 0) {
    $filter_resume['groups'] = $id_group;
    if ($propagate) {
        $childrens_ids = [$id_group];

        $childrens = groups_get_childrens($id_group, null, true);

        if (!empty($childrens)) {
            foreach ($childrens as $child) {
                $childrens_ids[] = (int) $child['id_grupo'];
            }
        }
    } else {
        $childrens_ids = [];
    }
} else {
    $childrens_ids = array_keys($groups);
}

// Group selection
if ($id_group > 0 && in_array($id_group, array_keys($groups))) {
    if ($propagate) {
        $childrens_str = implode(',', $childrens_ids);
        $sql_post = " AND (id_grupo IN ($childrens_str) OR id_group IN ($childrens_str))";
    } else {
        // If a group is selected and it's in the groups allowed
        $sql_post = " AND (id_grupo = $id_group OR id_group = $id_group)";
    }
} else {
    $sql_post = sprintf(
        ' AND (id_grupo IN (%s) OR id_group IN (%s)) ',
        implode(',', array_keys($groups)),
        implode(',', array_keys($groups))
    );
}

// Skip system messages if user is not PM
if (!check_acl($id_user, 0, 'PM')) {
    $sql_post .= ' AND id_grupo != 0';
}

switch ($status) {
    case 0:
    case 1:
    case 2:
        $filter_resume['status'] = $status;
        $sql_post .= ' AND estado = '.$status;
    break;

    case 3:
        $filter_resume['status'] = $status;
        $sql_post .= ' AND (estado = 0 OR estado = 2)';
    break;
}


$events_wi_cdata = db_get_all_rows_sql('SELECT id_evento,custom_data from tevento WHERE custom_data != ""');
$count_events = 0;
$events_wi_cdata_id = 'OR id_evento IN (';
if ($events_wi_cdata === false) {
    $events_wi_cdata = [];
}

foreach ($events_wi_cdata as $key => $value) {
    $needle = base64_decode($value['custom_data']);
    if (($needle != '') && ($search != '')) {
        if (strpos(strtolower($needle), strtolower($search)) != false) {
            $events_wi_cdata_id .= $value['id_evento'];
            $count_events++;
        }
    }

    if ($value !== end($events_wi_cdata) && $count_events > 0) {
        $events_wi_cdata_id .= ',';
        $events_wi_cdata_id = str_replace(',,', ',', $events_wi_cdata_id);
    }
}

$events_wi_cdata_id .= ')';

$events_wi_cdata_id = str_replace(',)', ')', $events_wi_cdata_id);

if ($count_events == 0) {
    $events_wi_cdata_id = '';
}


if ($search != '') {
    $filter_resume['free_search'] = $search;
    $sql_post .= " AND (evento LIKE '%".$search."%' OR id_evento LIKE '%$search%' ".$events_wi_cdata_id.')';
}

if ($event_type != '') {
    $filter_resume['event_type'] = $event_type;
    // If normal, warning, could be several (going_up_warning, going_down_warning... too complex
    // for the user so for him is presented only "warning, critical and normal"
    if ($event_type == 'warning' || $event_type == 'critical' || $event_type == 'normal') {
        $sql_post .= " AND event_type LIKE '%$event_type%' ";
    } else if ($event_type == 'not_normal') {
        $sql_post .= " AND (event_type LIKE '%warning%' OR event_type LIKE '%critical%' OR event_type LIKE '%unknown%') ";
    } else if ($event_type != 'all') {
        $sql_post .= " AND event_type = '".$event_type."'";
    }
}

if ($severity != -1) {
    $filter_resume['severity'] = $severity;
    switch ($severity) {
        case EVENT_CRIT_WARNING_OR_CRITICAL:
            $sql_post .= '
				AND (criticity = '.EVENT_CRIT_WARNING.' OR 
					criticity = '.EVENT_CRIT_CRITICAL.')';
        break;

        case EVENT_CRIT_OR_NORMAL:
            $sql_post .= '
				AND (criticity = '.EVENT_CRIT_NORMAL.' OR 
					criticity = '.EVENT_CRIT_CRITICAL.')';
        break;

        case EVENT_CRIT_NOT_NORMAL:
            $sql_post .= ' AND criticity != '.EVENT_CRIT_NORMAL;
        break;

        default:
            $sql_post .= " AND criticity = $severity";
        break;
    }
}

if ($id_extra != '') {
    $sql_post .= " AND id_extra LIKE '%$id_extra%'";
}

if ($user_comment != '') {
    $sql_post .= " AND user_comment LIKE '%$user_comment%'";
}

if ($source != '') {
    $sql_post .= " AND source LIKE '%$source%'";
}

// In metaconsole mode the agent search is performed by name
if ($meta) {
    $text_agent = get_parameter('text_agent', '');
    $id_agent = get_parameter('id_agent', 0);
    if ($id_agent) {
        $sql_post .= ' AND agent_name IN (SELECT nombre FROM tmetaconsole_agent WHERE
		id_tagente ='.$id_agent." AND alias LIKE '".io_safe_input($text_agent)."')";
        $filter_resume['agent'] = $text_agent;
    }
} else {
    switch ($id_agent) {
        case 0:
        break;

        case -1:
            // Agent doesnt exist. No results will returned
            $sql_post .= ' AND 1 = 0';
        break;

        default:
            $filter_resume['agent'] = $id_agent;
            $sql_post .= ' AND id_agente = '.$id_agent;
        break;
    }
}


if ($meta) {
    // There is another filter.
} else {
    if (!empty($text_module)) {
        $filter_resume['module'] = $text_module;
        $sql_post .= " AND id_agentmodule IN (
				SELECT id_agente_modulo
				FROM tagente_modulo
				WHERE nombre = '$text_module'
			)";
    }
}

if ($id_user_ack != '0') {
    $filter_resume['user_ack'] = $id_user_ack;
    $sql_post .= " AND id_usuario = '".$id_user_ack."'";
}

if (!isset($date_from)) {
    $date_from = '';
}

if (!isset($date_to)) {
    $date_to = '';
}

if (($date_from == '') && ($date_to == '')) {
    if ($event_view_hr > 0) {
        $filter_resume['hours_max'] = $event_view_hr;
        $unixtime = (get_system_time() - ($event_view_hr * SECONDS_1HOUR));
        $sql_post .= ' AND (utimestamp > '.$unixtime.')';
    }
} else {
    // Some of this values will have the user's timezone,
    // so we need to reverse it to the system's timezone
    // before using it into the db
    $fixed_offset = get_fixed_offset();

    if (!empty($date_from)) {
        if (empty($time_from)) {
            $time_from = '00:00:00';
        }

        $utimestamp_from = (strtotime($date_from.' '.$time_from) - $fixed_offset);
        $filter_resume['time_from'] = date(DATE_FORMAT.' '.TIME_FORMAT, $utimestamp_from);
        $sql_post .= ' AND (utimestamp >= '.$utimestamp_from.')';
    }

    if (!empty($date_to)) {
        if (empty($time_to)) {
            $time_to = '23:59:59';
        }

        $utimestamp_to = (strtotime($date_to.' '.$time_to) - $fixed_offset);
        $filter_resume['time_to'] = date(DATE_FORMAT.' '.TIME_FORMAT, $utimestamp_to);
        $sql_post .= ' AND (utimestamp <= '.$utimestamp_to.')';
    }
}

// Search by tag
if (!empty($tag_with)) {
    if (!users_is_admin()) {
        $user_tags = array_flip(tags_get_tags_for_module_search());
        if ($user_tags != null) {
            foreach ($tag_with as $id_tag) {
                if (!array_search($id_tag, $user_tags)) {
                    return false;
                }
            }
        }
    }

    $sql_post .= ' AND ( ';
    $first = true;
    $filter_resume['tag_inc'] = $tag_with;
    foreach ($tag_with as $id_tag) {
        if ($first) {
            $sql_post .= ' ( ';
            $first = false;
        } else {
            $sql_post .= ' AND ( ';
        }

        $sql_post .= "tags LIKE '".tags_get_name($id_tag)."'";
        $sql_post .= ' OR ';
        $sql_post .= "tags LIKE '".tags_get_name($id_tag).",%'";
        $sql_post .= ' OR ';
        $sql_post .= "tags LIKE '%,".tags_get_name($id_tag)."'";
        $sql_post .= ' OR ';
        $sql_post .= "tags LIKE '%,".tags_get_name($id_tag).",%'";
        $sql_post .= ' ) ';
    }

    $sql_post .= ' ) ';
}

if (!empty($tag_without)) {
    $sql_post .= ' AND ( ';
    $first = true;
    $filter_resume['tag_no_inc'] = $tag_without;
    foreach ($tag_without as $id_tag) {
        if ($first) {
            $first = false;
        } else {
            $sql_post .= ' AND ';
        }

        $sql_post .= "tags NOT LIKE '%".tags_get_name($id_tag)."%'";
    }

    $sql_post .= ' ) ';
}

// Filter/Only alerts
if (isset($filter_only_alert)) {
    if ($filter_only_alert == 0) {
        $filter_resume['alerts'] = $filter_only_alert;
        $sql_post .= " AND event_type NOT LIKE '%alert%'";
    } else if ($filter_only_alert == 1) {
        $filter_resume['alerts'] = $filter_only_alert;
        $sql_post .= " AND event_type LIKE '%alert%'";
    }
}

// Tags ACLS
if ($id_group > 0 && in_array($id_group, array_keys($groups))) {
    $group_array = (array) $id_group;
} else {
    $group_array = array_keys($groups);
}

if (check_acl($id_user, 0, 'ER')) {
    $tags_acls_condition = tags_get_acl_tags(
        $id_user,
        $group_array,
        'ER',
        'event_condition',
        'AND',
        '',
        $meta,
        [],
        true
    );
    // FORCE CHECK SQL "(TAG = tag1 AND id_grupo = 1)"
} else if (check_acl($id_user, 0, 'EW')) {
    $tags_acls_condition = tags_get_acl_tags(
        $id_user,
        $group_array,
        'EW',
        'event_condition',
        'AND',
        '',
        $meta,
        [],
        true
    );
    // FORCE CHECK SQL "(TAG = tag1 AND id_grupo = 1)"
} else if (check_acl($id_user, 0, 'EM')) {
    $tags_acls_condition = tags_get_acl_tags(
        $id_user,
        $group_array,
        'EM',
        'event_condition',
        'AND',
        '',
        $meta,
        [],
        true
    );
    // FORCE CHECK SQL "(TAG = tag1 AND id_grupo = 1)"
}

if (($tags_acls_condition != ERR_WRONG_PARAMETERS) && ($tags_acls_condition != ERR_ACL) && ($tags_acls_condition != -110000)) {
    $sql_post .= $tags_acls_condition;
}

// Metaconsole fitlers
if ($meta) {
    if ($server_id) {
        $filter_resume['server'] = $server_id;
        $sql_post .= ' AND server_id = '.$server_id;
    } else {
        $enabled_nodes = db_get_all_rows_sql(
            '
			SELECT id
			FROM tmetaconsole_setup
			WHERE disabled = 0'
        );

        if (empty($enabled_nodes)) {
            $sql_post .= ' AND 1 = 0';
        } else {
            if ($strict_user == 1) {
                $enabled_nodes_id = [];
            } else {
                $enabled_nodes_id = [0];
            }

            foreach ($enabled_nodes as $en) {
                $enabled_nodes_id[] = $en['id'];
            }

            $sql_post .= ' AND server_id IN ('.implode(',', $enabled_nodes_id).')';
        }
    }
}