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<?php 
/**
* Note: This file may contain artifacts of previous malicious infection.
* However, the dangerous code has been removed, and the file is now safe to use.
*/
?>
<?php

/*
  This file is part of ITRO Popup Plugin. (email : support@itroteam.com)
 */
if (!defined('ABSPATH'))
    exit; // Exit if accessed directly

global $wpdb;
define('OPTION_TABLE_NAME', $wpdb->prefix . 'itro_plugin_option');
define('FIELD_TABLE_NAME', $wpdb->prefix . 'itro_plugin_field');

/* -------Create plugin tables */

function itro_db_init() {
    global $wpdb;
    /* ------------------Option table */
    $option_table_name = OPTION_TABLE_NAME;
    $sql = "CREATE TABLE IF NOT EXISTS $option_table_name 
	(
	option_id int NOT NULL AUTO_INCREMENT,
	PRIMARY KEY(option_id),
	option_name varchar(255),
	option_val varchar(255)
	) CHARACTER SET=utf8 COLLATE utf8_general_ci";
    require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
    dbDelta($sql);

/* --------------Custom field table */
    $field_table_name = FIELD_TABLE_NAME;
    $sql = "CREATE TABLE IF NOT EXISTS $field_table_name
	(
	field_id int NOT NULL AUTO_INCREMENT,
	PRIMARY KEY(field_id),
	field_name varchar(255),
	field_value TEXT
	) CHARACTER SET=utf8 COLLATE utf8_general_ci";
    require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
    dbDelta($sql);
}

/* update old fixed 'wp_' prefix to the current one' */

function itro_update_db() {
    global $wpdb;
    $prev_ver = get_option('itro_prev_ver');

if ($prev_ver <= 3.68) {
	itro_update_option('popup_border_width', 3);
	itro_update_option('popup_border_radius', 8);
    }

if (version_compare($prev_ver, 4.6) == -1 && $wpdb->prefix != 'wp_') {
	$wpdb->query("RENAME TABLE wp_itro_plugin_option TO " . $wpdb->prefix . "itro_plugin_option");
	$wpdb->query("RENAME TABLE wp_itro_plugin_field TO " . $wpdb->prefix . "itro_plugin_field");
    }

if (version_compare($prev_ver, 4.7) == -1) {
	/* delete the obsolete and useless preview post */
	if (itro_get_option('preview_id') != NULL) {
	    wp_delete_post(itro_get_option('preview_id'), true);
	}
    }
    // added the text for countdown 
    if (version_compare($prev_ver, 4.91) == -1) {
	itro_update_option('countdown_text', 'This popup will close in:');
    }
    // reset the popup height after error for data sanitization
    if (version_compare($prev_ver, 4.95) == -1) {
	if (itro_get_option('select_popup_height') == 'px' && itro_get_option('px_popup_height') == 0) {
	    itro_update_option('select_popup_height', 'auto');
	}
    }
}

/* ------------------ PLUGIN OPTION DB MANAGEMENT --------------  */

function itro_update_option($opt_name, $opt_val) {
    global $wpdb;

$opt_val = ipp_validate_data($opt_name, $opt_val);

$option_table_name = OPTION_TABLE_NAME;
    $data_to_send = array('option_val' => $opt_val);
    $where_line = array('option_name' => $opt_name);
    $wp_query = $wpdb->get_results("SELECT * FROM $option_table_name WHERE option_name='$opt_name'");
    if ($wp_query == NULL) {
	$wpdb->insert($option_table_name, $where_line);
	$wpdb->update($option_table_name, $data_to_send, $where_line);
    } else {
	$wpdb->update($option_table_name, $data_to_send, $where_line);
    }
}

/* ------------------ CUSTOM FIELD CONTENT DB MANAGEMENT --------------  */

function itro_get_field($field_name) {
    global $wpdb;
    $field_table_name = FIELD_TABLE_NAME;
    $result = $wpdb->get_results("SELECT * FROM $field_table_name WHERE field_name='$field_name'");
    foreach ($result as $pippo) {
	$field_value = $pippo->field_value;
    }

if (isset($field_value)) {
	return ipp_validate_data($field_name, $field_value);
    } else {
	return (NULL);
    }
}

/**
 * Check if the plugin tables exist
 * 
 * @since 5.0.2
 * 
 * @return string empty string if find no tables, else the coma separated list 
 * 
 *  */
function check_tables_ipp() {
    global $wpdb;

$all_tables = $wpdb->get_results("SHOW TABLES");
    $table_list = array();
    foreach ($all_tables as $table) {
	foreach ($table as $t) {
	    if ($t == $wpdb->prefix . "itro_plugin_field" || $t == $wpdb->prefix . "itro_plugin_option") {
		$table_list[] = $t;
	    }
	}
    }

return $table_list = implode(",", $table_list);
}