XoopsModules25x / xhttperror

class/Common/SysUtility.php

<?php declare(strict_types=1);

namespace XoopsModules\Xhttperror\Common;

/*
 Utility Class Definition

 You may not change or alter any portion of this comment or credits of
 supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit
 authors.

 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.
 */

/**
 * @license      https://www.fsf.org/copyleft/gpl.html GNU public license
 * @copyright    https://xoops.org 2000-2020 &copy; XOOPS Project
 * @author       ZySpec <zyspec@yahoo.com>
 * @author       Mamba <mambax7@gmail.com>
 */

use Xmf\Request;
use MyTextSanitizer;
use XoopsFormDhtmlTextArea;
use XoopsFormTextArea;
use XoopsModules\Xhttperror\{
    Helper
};


/**
 * Class SysUtility
 */
class SysUtility
{
    use VersionChecks; //checkVerXoops, checkVerPhp Traits

The trait XoopsModules\Xhttperror\Common\VersionChecks requires some properties which are not provided by XoopsModules\Xhttperror\Common\SysUtility: $tag_name, $prerelease

    use ServerStats; // getServerStats Trait
    use FilesManagement; // Files Management Trait

    //--------------- Common module methods -----------------------------

    /**
     * Access the only instance of this class
     *
     * @return SysUtility
     *
     */
    public static function getInstance()
    {
        static $instance;
        if (null === $instance) {
            $instance = new static();
        }

        return $instance;
    }

    /**
     * @param $text
     * @param $form_sort
     * @return string
     */
    public static function selectSorting($text, $form_sort)
    {
        global $start, $order, $file_cat, $sort, $xoopsModule;

        $select_view   = '';
        $moduleDirName = basename(dirname(__DIR__));
        /** @var Helper $helper */
        $helper = Helper::getInstance();

        //$pathModIcon16 = XOOPS_URL . '/modules/' . $moduleDirName . '/' . $helper->getConfig('modicons16');
        $pathModIcon16 = $helper->url($helper->getModule()->getInfo('modicons16'));

        $select_view = '<form name="form_switch" id="form_switch" action="' . Request::getString('REQUEST_URI', '', 'SERVER') . '" method="post"><span style="font-weight: bold;">' . $text . '</span>';
        //$sorts =  $sort ==  'asc' ? 'desc' : 'asc';
        if ($form_sort == $sort) {
            $sel1 = 'asc' === $order ? 'selasc.png' : 'asc.png';
            $sel2 = 'desc' === $order ? 'seldesc.png' : 'desc.png';
        } else {
            $sel1 = 'asc.png';
            $sel2 = 'desc.png';
        }
        $select_view .= '  <a href="' . Request::getString('SCRIPT_NAME', '', 'SERVER') . '?start=' . $start . '&sort=' . $form_sort . '&order=asc"><img src="' . $pathModIcon16 . '/' . $sel1 . '" title="ASC" alt="ASC"></a>';
        $select_view .= '<a href="' . Request::getString('SCRIPT_NAME', '', 'SERVER') . '?start=' . $start . '&sort=' . $form_sort . '&order=desc"><img src="' . $pathModIcon16 . '/' . $sel2 . '" title="DESC" alt="DESC"></a>';
        $select_view .= '</form>';

        return $select_view;
    }

    /***************Blocks***************/
    /**
     * @param array $cats
     * @return string
     */
    public static function blockAddCatSelect($cats)
    {
        $cat_sql = '';
        if (is_array($cats) && !empty($cats)) {
            $cat_sql = '(' . current($cats);
            array_shift($cats);
            foreach ($cats as $cat) {
                $cat_sql .= ',' . $cat;
            }
            $cat_sql .= ')';
        }

        return $cat_sql;
    }

    /**
     * @param $content
     */
    public static function metaKeywords($content)
    {
        global $xoopsTpl, $xoTheme;
        $myts    = \MyTextSanitizer::getInstance();
        $content = $myts->undoHtmlSpecialChars($myts->displayTarea($content));
        if (null !== $xoTheme && is_object($xoTheme)) {
            $xoTheme->addMeta('meta', 'keywords', strip_tags($content));
        } else {    // Compatibility for old Xoops versions
            $xoopsTpl->assign('xoops_metaKeywords', strip_tags($content));
        }
    }

    /**
     * @param $content
     */
    public static function metaDescription($content)
    {
        global $xoopsTpl, $xoTheme;
        $myts    = \MyTextSanitizer::getInstance();
        $content = $myts->undoHtmlSpecialChars($myts->displayTarea($content));
        if (null !== $xoTheme && is_object($xoTheme)) {
            $xoTheme->addMeta('meta', 'description', strip_tags($content));
        } else {    // Compatibility for old Xoops versions
            $xoopsTpl->assign('xoops_metaDescription', strip_tags($content));
        }
    }

    /**
     * @param $tableName
     * @param $columnName
     *
     * @return array
     */
    public static function enumerate($tableName, $columnName)
    {
        $table = $GLOBALS['xoopsDB']->prefix($tableName);

        //    $result = $GLOBALS['xoopsDB']->query("SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS
        //        WHERE TABLE_NAME = '" . $table . "' AND COLUMN_NAME = '" . $columnName . "'")
        //    || exit ($GLOBALS['xoopsDB']->error());

        $sql    = 'SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = "' . $table . '" AND COLUMN_NAME = "' . $columnName . '"';
        $result = $GLOBALS['xoopsDB']->query($sql);
        if (!$result) {
            exit($GLOBALS['xoopsDB']->error());
        }

        $row      = $GLOBALS['xoopsDB']->fetchBoth($result);
        $enumList = explode(',', str_replace("'", '', substr($row['COLUMN_TYPE'], 5, - 6)));
        return $enumList;
    }


    /**
     * @param array|string $tableName
     * @param int          $id_field
     * @param int          $id
     *
     * @return mixed
     */
    public static function cloneRecord($tableName, $id_field, $id)
    {
        $new_id = false;
        $table  = $GLOBALS['xoopsDB']->prefix($tableName);
        // copy content of the record you wish to clone
        $sql = "SELECT * FROM $table WHERE $id_field='$id' ";
        $tempTable = $GLOBALS['xoopsDB']->fetchArray($GLOBALS['xoopsDB']->query($sql), MYSQLI_ASSOC);
        if (!$tempTable) {
            exit($GLOBALS['xoopsDB']->error());
        }
        // set the auto-incremented id's value to blank.
        unset($tempTable[$id_field]);
        // insert cloned copy of the original  record
        $sql    = "INSERT INTO $table (" . implode(', ', array_keys($tempTable)) . ") VALUES ('" . implode("', '", array_values($tempTable)) . "')";
        $result = $GLOBALS['xoopsDB']->queryF($sql);
        if (!$result) {
            exit($GLOBALS['xoopsDB']->error());
        }
        // Return the new id
        $new_id = $GLOBALS['xoopsDB']->getInsertId();

        return $new_id;
    }
    /**
     * truncateHtml can truncate a string up to a number of characters while preserving whole words and HTML tags
     * www.gsdesign.ro/blog/cut-html-string-without-breaking-the-tags
     * www.cakephp.org
     *
     * @param string $text         String to truncate.
     * @param int    $length       Length of returned string, including ellipsis.
     * @param string $ending       Ending to be appended to the trimmed string.
     * @param bool   $exact        If false, $text will not be cut mid-word
     * @param bool   $considerHtml If true, HTML tags would be handled correctly
     *
     * @return string Trimmed string.
     */
    public static function truncateHtml($text, $length = 100, $ending = '...', $exact = false, $considerHtml = true)
    {
        $openTags = [];
        if ($considerHtml) {
            // if the plain text is shorter than the maximum length, return the whole text
            if (strlen(preg_replace('/<.*?' . '>/', '', $text)) <= $length) {
                return $text;
            }
            // splits all html-tags to scanable lines
            preg_match_all('/(<.+?' . '>)?([^<>]*)/s', $text, $lines, PREG_SET_ORDER);
            $total_length = strlen($ending);
            //$openTags    = [];
            $truncate     = '';
            foreach ($lines as $line_matchings) {
                // if there is any html-tag in this line, handle it and add it (uncounted) to the output
                if (!empty($line_matchings[1])) {
                    // if it's an "empty element" with or without xhtml-conform closing slash
                    if (preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1])) {
                        // do nothing
                        // if tag is a closing tag
                    } elseif (preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $line_matchings[1], $tag_matchings)) {
                        // delete tag from $openTags list
                        $pos = array_search($tag_matchings[1], $openTags);
                        if (false !== $pos) {
                            unset($openTags[$pos]);
                        }
                        // if tag is an opening tag
                    } elseif (preg_match('/^<\s*([^\s>!]+).*?' . '>$/s', $line_matchings[1], $tag_matchings)) {
                        // add tag to the beginning of $openTags list
                        array_unshift($openTags, strtolower($tag_matchings[1]));
                    }
                    // add html-tag to $truncate'd text
                    $truncate .= $line_matchings[1];
                }
                // calculate the length of the plain text part of the line; handle entities as one character
                $content_length = strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $line_matchings[2]));
                if ($total_length + $content_length > $length) {
                    // the number of characters which are left
                    $left            = $length - $total_length;
                    $entities_length = 0;
                    // search for html entities
                    if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $line_matchings[2], $entities, PREG_OFFSET_CAPTURE)) {
                        // calculate the real length of all entities in the legal range
                        foreach ($entities[0] as $entity) {
                            if ($entity[1] + 1 - $entities_length <= $left) {
                                $left--;
                                $entities_length += strlen($entity[0]);
                            } else {
                                // no more characters left
                                break;
                            }
                        }
                    }
                    $truncate .= substr($line_matchings[2], 0, $left + $entities_length);
                    // maximum lenght is reached, so get off the loop
                    break;
                } else {
                $truncate     .= $line_matchings[2];
                $total_length += $content_length;
                }
                // if the maximum length is reached, get off the loop
                if ($total_length >= $length) {
                    break;
                }
            }
        } elseif (strlen($text) <= $length) {
                return $text;
            } else {
                $truncate = substr($text, 0, $length - strlen($ending));
            }

        // if the words shouldn't be cut in the middle...
        if (!$exact) {
            // ...search the last occurance of a space...
            $spacepos = mb_strrpos($truncate, ' ');
            if (isset($spacepos)) {
                // ...and cut the text in this position
                $truncate = substr($truncate, 0, $spacepos);
            }
        }
        // add the defined ending to the text
        $truncate .= $ending;
        if ($considerHtml) {
            // close all unclosed html-tags
            foreach ($openTags as $tag) {
                $truncate .= '</' . $tag . '>';
            }
        }

        return $truncate;
    }

    /**
     * @param \Xmf\Module\Helper $helper
     * @param array|null         $options
     * @return \XoopsFormDhtmlTextArea|\XoopsFormEditor
     */
    public static function getEditor($helper = null, $options = null)
    {
        /** @var Helper $helper */
        if (null === $options) {
            $options           = [];
            $options['name']   = 'Editor';
            $options['value']  = 'Editor';
            $options['rows']   = 10;
            $options['cols']   = '100%';
            $options['width']  = '100%';
            $options['height'] = '400px';
        }

        if (null === $helper) {
            $helper = Helper::getInstance();
        }

        $isAdmin = $helper->isUserAdmin();

        if (class_exists('XoopsFormEditor')) {
            if ($isAdmin) {
                $descEditor = new \XoopsFormEditor(ucfirst($options['name']), $helper->getConfig('editorAdmin'), $options, $nohtml = false, $onfailure = 'textarea');
            } else {
                $descEditor = new \XoopsFormEditor(ucfirst($options['name']), $helper->getConfig('editorUser'), $options, $nohtml = false, $onfailure = 'textarea');
            }
        } else {
            $descEditor = new \XoopsFormDhtmlTextArea(ucfirst($options['name']), $options['name'], $options['value'], '100%', '100%');
        }

        //        $form->addElement($descEditor);

        return $descEditor;
    }

    /**
     * @param string $fieldname
     * @param string $table
     *
     * @return bool
     */
    public static function fieldExists($fieldname, $table)
    {
        global $xoopsDB;
        $result = $xoopsDB->queryF("SHOW COLUMNS FROM   $table LIKE '$fieldname'");

        return ($xoopsDB->getRowsNum($result) > 0);
    }

    /**
     * Function responsible for checking if a directory exists, we can also write in and create an index.html file
     *
     * @param string $folder The full path of the directory to check
     */
    public static function prepareFolder($folder)
    {
        try {
            if (!@mkdir($folder) && !is_dir($folder)) {
                throw new \RuntimeException(sprintf('Unable to create the %s directory', $folder));
            }
            file_put_contents($folder . '/index.html', '<script>history.go(-1);</script>');
        } catch (\Exception $e) {
            echo 'Caught exception: ', $e->getMessage(), "\n", '<br>';
        }
    }

    /**
     * @param string $tablename
     *
     * @return bool
     */
   public static function tableExists($tablename)
    {
        $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
        trigger_error(__FUNCTION__ . " is deprecated, called from {$trace[0]['file']} line {$trace[0]['line']}");
        $GLOBALS['xoopsLogger']->addDeprecated(
            basename(dirname(dirname(__DIR__))) .  ' Module: ' . __FUNCTION__ . " function is deprecated, please use Xmf\Database\Tables method(s) instead." . " Called from {$trace[0]['file']}line {$trace[0]['line']}"
        );
        $result = $GLOBALS['xoopsDB']->queryF("SHOW TABLES LIKE '$tablename'");

        return ($GLOBALS['xoopsDB']->getRowsNum($result) > 0) ? true : false;
    }

    /**
     * Add a field to a mysql table
     *
     * @param $field
     * @param $table
     * @return bool|\mysqli_result
     */
    public static function addField($field, $table)
    {
        global $xoopsDB;
        $result = $xoopsDB->queryF('ALTER TABLE ' . $table . " ADD $field;");

        return $result;
    }
}