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File: /home/xedaptot/be.naniguide.com/public/filemanager2/include/utils.php
<?php

if (!isset($_SESSION['RF']) || $_SESSION['RF']["verify"] != "RESPONSIVEfilemanager") {
    die('forbiden');
}
require dirname(__FILE__) . '/Response.php';

if (! function_exists('response')) {
    /**
    * Response construction helper
    *
    * @param string $content
    * @param int    $statusCode
    * @param array  $headers
    *
    * @return \Response|\Illuminate\Http\Response
    */
    function response($content = '', $statusCode = 200, $headers = array())
    {
        $responseClass = class_exists('Illuminate\Http\Response') ? '\Illuminate\Http\Response' : 'Response';

        return new $responseClass($content, $statusCode, $headers);
    }
}

if (! function_exists('xtrans')) {

    /**
    * Translate language variable
    *
    * @param $var string name
    *
    * @return string translated variable
    */
    function xtrans($var)
    {
        global $lang_vars;

        return (array_key_exists($var, $lang_vars)) ? $lang_vars[ $var ] : $var;
    }

    // language
    if (! isset($_SESSION['RF']['language'])
        || file_exists('lang/' . basename($_SESSION['RF']['language']) . '.php') === false
        || ! is_readable('lang/' . basename($_SESSION['RF']['language']) . '.php')
    ) {
        $lang = $config['default_language'];

        if (isset($_GET['lang']) && $_GET['lang'] != 'undefined' && $_GET['lang'] != '') {
            $lang = fix_get_params($_GET['lang']);
            $lang = trim($lang);
        }

        if ($lang != $config['default_language']) {
            $path_parts = pathinfo($lang);
            $lang = $path_parts['basename'];
            $languages = include 'lang/languages.php';
        }

        // add lang file to session for easy include
        $_SESSION['RF']['language'] = $lang;
    } else {
        if (file_exists('lang/languages.php')) {
            $languages = include 'lang/languages.php';
        } else {
            $languages = include '../lang/languages.php';
        }

        if (array_key_exists($_SESSION['RF']['language'], $languages)) {
            $lang = $_SESSION['RF']['language'];
        } else {
            response('Lang_Not_Found'.AddErrorLocation())->send();
            exit;
        }
    }
    if (file_exists('lang/' . $lang . '.php')) {
        $lang_vars = include 'lang/' . $lang . '.php';
    } else {
        $lang_vars = include '../lang/' . $lang . '.php';
    }

    if (! is_array($lang_vars)) {
        $lang_vars = array();
    }
}


function checkRelativePathPartial($path)
{
    if (strpos($path, '../') !== false
        || strpos($path, './') !== false
        || strpos($path, '/..') !== false
        || strpos($path, '..\\') !== false
        || strpos($path, '\\..') !== false
        || strpos($path, '.\\') !== false
        || $path === ".."
    ) {
        return false;
    }
    return true;
}

/**
* Check relative path
*
* @param  string  $path
*
* @return boolean is it correct?
*/
function checkRelativePath($path)
{
    $path_correct = checkRelativePathPartial($path);
    if ($path_correct) {
        $path_decoded = rawurldecode($path);
        $path_correct = checkRelativePathPartial($path_decoded);
    }
    return $path_correct;
}

/**
* Check if the given path is an upload dir based on config
*
* @param  string  $path
* @param  array $config
*
* @return boolean is it an upload dir?
*/
function isUploadDir($path, $config)
{
    $upload_dir = $config['current_path'];
    $thumbs_dir = $config['thumbs_base_path'];
    if (realpath($path) === realpath($upload_dir) || realpath($path) === realpath($thumbs_dir)) {
        return true;
    }
    return false;
}

/**
* Delete file
*
* @param  string  $path
* @param  string $path_thumb
* @param  array $config
*
* @return null
*/
function deleteFile($path, $path_thumb, $config)
{
    if ($config['delete_files']) {
        $ftp = ftp_con($config);
        if ($ftp) {
            try {
                $ftp->delete("/".$path);
                @$ftp->delete("/".$path_thumb);
            } catch (FtpClient\FtpException $e) {
                return;
            }
        } else {
            if (file_exists($path)) {
                unlink($path);
            }
            if (file_exists($path_thumb)) {
                unlink($path_thumb);
            }
        }

        $info=pathinfo($path);
        if (!$ftp && $config['relative_image_creation']) {
            foreach ($config['relative_path_from_current_pos'] as $k=>$path) {
                if ($path!="" && $path[strlen($path)-1]!="/") {
                    $path.="/";
                }

                if (file_exists($info['dirname']."/".$path.$config['relative_image_creation_name_to_prepend'][$k].$info['filename'].$config['relative_image_creation_name_to_append'][$k].".".$info['extension'])) {
                    unlink($info['dirname']."/".$path.$config['relative_image_creation_name_to_prepend'][$k].$info['filename'].$config['relative_image_creation_name_to_append'][$k].".".$info['extension']);
                }
            }
        }

        if (!$ftp && $config['fixed_image_creation']) {
            foreach ($config['fixed_path_from_filemanager'] as $k=>$path) {
                if ($path!="" && $path[strlen($path)-1] != "/") {
                    $path.="/";
                }

                $base_dir=$path.substr_replace($info['dirname']."/", '', 0, strlen($config['current_path']));
                if (file_exists($base_dir.$config['fixed_image_creation_name_to_prepend'][$k].$info['filename'].$config['fixed_image_creation_to_append'][$k].".".$info['extension'])) {
                    unlink($base_dir.$config['fixed_image_creation_name_to_prepend'][$k].$info['filename'].$config['fixed_image_creation_to_append'][$k].".".$info['extension']);
                }
            }
        }
    }
}

/**
* Delete directory
*
* @param  string  $dir
*
* @return  bool
*/
function deleteDir($dir, $ftp = null, $config = null)
{
    if ($ftp) {
        try {
            $ftp->rmdir($dir);
            return true;
        } catch (FtpClient\FtpException $e) {
            return null;
        }
    } else {
        if (! file_exists($dir) || isUploadDir($dir, $config)) {
            return false;
        }
        if (! is_dir($dir)) {
            return unlink($dir);
        }
        foreach (scandir($dir) as $item) {
            if ($item == '.' || $item == '..') {
                continue;
            }
            if (! deleteDir($dir . DIRECTORY_SEPARATOR . $item)) {
                return false;
            }
        }
    }

    return rmdir($dir);
}

/**
* Make a file copy
*
* @param  string  $old_path
* @param  string  $name      New file name without extension
*
* @return  bool
*/
function duplicate_file($old_path, $name, $ftp = null, $config = null)
{
    $info = pathinfo($old_path);
    $new_path = $info['dirname'] . "/" . $name . "." . $info['extension'];
    if ($ftp) {
        try {
            $tmp = time().$name . "." . $info['extension'];
            $ftp->get($tmp, "/".$old_path, FTP_BINARY);
            $ftp->put("/".$new_path, $tmp, FTP_BINARY);
            unlink($tmp);
            return true;
        } catch (FtpClient\FtpException $e) {
            return null;
        }
    } else {
        if (file_exists($old_path) && is_file($old_path)) {
            if (file_exists($new_path) && $old_path == $new_path) {
                return false;
            }

            return copy($old_path, $new_path);
        }
    }
}


/**
* Rename file
*
* @param  string  $old_path         File to rename
* @param  string  $name             New file name without extension
* @param  bool    $transliteration
*
* @return bool
*/
function rename_file($old_path, $name, $ftp = null, $config = null)
{
    $name = fix_filename($name, $config);
    $info = pathinfo($old_path);
    $new_path = $info['dirname'] . "/" . $name . "." . $info['extension'];
    if ($ftp) {
        try {
            return $ftp->rename("/".$old_path, "/".$new_path);
        } catch (FtpClient\FtpException $e) {
            return false;
        }
    } else {
        if (file_exists($old_path) && is_file($old_path)) {
            $new_path = $info['dirname'] . "/" . $name . "." . $info['extension'];
            if (file_exists($new_path) && $old_path == $new_path) {
                return false;
            }

            return rename($old_path, $new_path);
        }
    }
}


function url_exists($url)
{
    if (!$fp = curl_init($url)) {
        return false;
    }
    return true;
}


function tempdir()
{
    $tempfile=tempnam(sys_get_temp_dir(), '');
    if (file_exists($tempfile)) {
        unlink($tempfile);
    }
    mkdir($tempfile);
    if (is_dir($tempfile)) {
        return $tempfile;
    }
}


/**
* Rename directory
*
* @param  string  $old_path         Directory to rename
* @param  string  $name             New directory name
* @param  bool    $transliteration
*
* @return bool
*/
function rename_folder($old_path, $name, $ftp = null, $config = null)
{
    $name = fix_filename($name, $config, true);
    $new_path = fix_dirname($old_path) . "/" . $name;
    if ($ftp) {
        if ($ftp->chdir("/".$old_path)) {
            if (@$ftp->chdir($new_path)) {
                return false;
            }
            return $ftp->rename("/".$old_path, "/".$new_path);
        }
    } else {
        if (file_exists($old_path) && is_dir($old_path) && !isUploadDir($old_path, $config)) {
            if (file_exists($new_path) && $old_path == $new_path) {
                return false;
            }
            return rename($old_path, $new_path);
        }
    }
}

function ftp_con($config)
{
    if (isset($config['ftp_host']) && $config['ftp_host']) {
        // *** Include the class
        include('include/FtpClient.php');
        include('include/FtpException.php');
        include('include/FtpWrapper.php');

        $ftp = new \FtpClient\FtpClient();
        try {
            $ftp->connect($config['ftp_host'], $config['ftp_ssl'], $config['ftp_port']);
            $ftp->login($config['ftp_user'], $config['ftp_pass']);
            $ftp->pasv(true);
            return $ftp;
        } catch (FtpClient\FtpException $e) {
            echo "Error: ";
            echo $e->getMessage();
            echo " to server ";
            $tmp = $e->getTrace();
            echo $tmp[0]['args'][0];
            echo "<br/>Please check configurations";
            die();
        }
    } else {
        return false;
    }
}

/**
* Create new image from existing file
*
* @param  string  $imgfile    Source image file name
* @param  string  $imgthumb   Thumbnail file name
* @param  int     $newwidth   Thumbnail width
* @param  int     $newheight  Optional thumbnail height
* @param  string  $option     Type of resize
*
* @return bool
* @throws \Exception
*/
function create_img($imgfile, $imgthumb, $newwidth, $newheight = null, $option = "crop", $config = array())
{
    $result = false;
    if (isset($config['ftp_host']) && $config['ftp_host']) {
        if (url_exists($imgfile)) {
            $temp = tempnam('/tmp', 'RF');
            unlink($temp);
            $temp .=".".substr(strrchr($imgfile, '.'), 1);
            $handle = fopen($temp, "w");
            fwrite($handle, file_get_contents($imgfile));
            fclose($handle);
            $imgfile= $temp;
            $save_ftp = $imgthumb;
            $imgthumb = $temp;
        }
    }
    if (file_exists($imgfile) || strpos($imgfile, 'http')===0) {
        if (strpos($imgfile, 'http')===0 || image_check_memory_usage($imgfile, $newwidth, $newheight)) {
            require_once('php_image_magician.php');
            try {
                $magicianObj = new imageLib($imgfile);
                $magicianObj->resizeImage($newwidth, $newheight, $option);
                $magicianObj->saveImage($imgthumb, 80);
            } catch (Exception $e) {
                return $e->getMessage();
            }
            $result = true;
        }
    }
    if ($result && isset($config['ftp_host']) && $config['ftp_host']) {
        $ftp->put($save_ftp, $imgthumb, FTP_BINARY);
        unlink($imgthumb);
    }

    return $result;
}

/**
* Convert convert size in bytes to human readable
*
* @param  int  $size
*
* @return  string
*/
function makeSize($size)
{
    $units = array( 'B', 'KB', 'MB', 'GB', 'TB' );
    $u = 0;
    while ((round($size / 1024) > 0) && ($u < 4)) {
        $size = $size / 1024;
        $u++;
    }

    return (number_format($size, 0) . " " . trans($units[ $u ]));
}

/**
* Determine directory size
*
* @param  string  $path
*
* @return  int
*/
function folder_info($path, $count_hidden=true)
{
    global $config;
    $total_size = 0;
    $files = scandir($path);
    $cleanPath = rtrim($path, '/') . '/';
    $files_count = 0;
    $folders_count = 0;
    foreach ($files as $t) {
        if ($t != "." && $t != "..") {
            if ($count_hidden or !(in_array($t, $config['hidden_folders']) or in_array($t, $config['hidden_files']))) {
                $currentFile = $cleanPath . $t;
                if (is_dir($currentFile)) {
                    list($size, $tmp, $tmp1) = folder_info($currentFile);
                    $total_size += $size;
                    $folders_count ++;
                } else {
                    $size = filesize($currentFile);
                    $total_size += $size;
                    $files_count++;
                }
            }
        }
    }

    return array($total_size,$files_count,$folders_count);
}
/**
* Get number of files in a directory
*
* @param  string  $path
*
* @return  int
*/
function filescount($path, $count_hidden=true)
{
    global $config;
    $total_count = 0;
    $files = scandir($path);
    $cleanPath = rtrim($path, '/') . '/';

    foreach ($files as $t) {
        if ($t != "." && $t != "..") {
            if ($count_hidden or !(in_array($t, $config['hidden_folders']) or in_array($t, $config['hidden_files']))) {
                $currentFile = $cleanPath . $t;
                if (is_dir($currentFile)) {
                    $size = filescount($currentFile);
                    $total_count += $size;
                } else {
                    $total_count += 1;
                }
            }
        }
    }

    return $total_count;
}
/**
* check if the current folder size plus the added size is over the overall size limite
*
* @param  int  $sizeAdded
*
* @return  bool
*/
function checkresultingsize($sizeAdded)
{
    global $config;

    if ($config['MaxSizeTotal'] !== false && is_int($config['MaxSizeTotal'])) {
        list($sizeCurrentFolder, $fileCurrentNum, $foldersCurrentCount) = folder_info($config['current_path'], false);
        // overall size over limit
        if (($config['MaxSizeTotal'] * 1024 * 1024) < ($sizeCurrentFolder + $sizeAdded)) {
            return false;
        }
    }
    return true;
}

/**
* Create directory for images and/or thumbnails
*
* @param  string  $path
* @param  string  $path_thumbs
*/
function create_folder($path = null, $path_thumbs = null, $ftp = null, $config = null)
{
    if ($ftp) {
        $ftp->mkdir($path);
        $ftp->mkdir($path_thumbs);
    } else {
        if (file_exists($path) || file_exists($path_thumbs)) {
            return false;
        }
        $oldumask = umask(0);
        $permission = 0755;
        if (isset($config['folderPermission'])) {
            $permission = $config['folderPermission'];
        }
        if ($path && !file_exists($path)) {
            mkdir($path, $permission, true);
        } // or even 01777 so you get the sticky bit set
        if ($path_thumbs) {
            mkdir($path_thumbs, $permission, true) or die("$path_thumbs cannot be found");
        } // or even 01777 so you get the sticky bit set
        umask($oldumask);
        return true;
    }
}

/**
* Get file extension present in directory
*
* @param  string  $path
* @param  string  $ext
*/
function check_files_extensions_on_path($path, $ext)
{
    if (! is_dir($path)) {
        $fileinfo = pathinfo($path);
        if (! in_array(mb_strtolower($fileinfo['extension']), $ext)) {
            unlink($path);
        }
    } else {
        $files = scandir($path);
        foreach ($files as $file) {
            check_files_extensions_on_path(trim($path, '/') . "/" . $file, $ext);
        }
    }
}


/**
* Check file extension
*
* @param  string  $extension
* @param  array   $config
*/

function check_file_extension($extension, $config)
{
    $check = false;
    if (!$config['ext_blacklist']) {
        if (in_array(mb_strtolower($extension), $conf['ext'])) {
            $check = true;
        }
    } else {
        if (!in_array(mb_strtolower($extension), $conf['ext_blacklist'])) {
            $check = true;
        }
    }

    if ($config['files_without_extension'] && $extension == '') {
        $check = true;
    }

    return $check;
}


/**
* Get file extension present in PHAR file
*
* @param  string  $phar
* @param  array   $files
* @param  string  $basepath
* @param  string  $ext
*/
function check_files_extensions_on_phar($phar, &$files, $basepath, $config)
{
    foreach ($phar as $file) {
        if ($file->isFile()) {
            if (check_file_extension($file->getExtension())) {
                $files[] = $basepath . $file->getFileName();
            }
        } else {
            if ($file->isDir()) {
                $iterator = new DirectoryIterator($file);
                check_files_extensions_on_phar($iterator, $files, $basepath . $file->getFileName() . '/', $config);
            }
        }
    }
}

/**
* Cleanup input
*
* @param  string  $str
*
* @return  string
*/
function fix_get_params($str)
{
    return strip_tags(preg_replace("/[^a-zA-Z0-9\.\[\]_| -]/", '', $str));
}


/**
* Check extension
*
* @param  string  $extension
* @param  array   $config
*
* @return bool
*/
function check_extension($extension, $config)
{
    $extension = fix_strtolower($extension);
    if ((!$config['ext_blacklist'] && !in_array($extension, $config['ext'])) || ($config['ext_blacklist'] && in_array($extension, $config['ext_blacklist']))) {
        return false;
    }
    return true;
}




/**
* Sanitize filename
*
* @param  string  $str
*
* @return string
*/
function sanitize($str)
{
    return strip_tags(htmlspecialchars($str));
}

/**
* Cleanup filename
*
* @param  string  $str
* @param  bool    $transliteration
* @param  bool    $convert_spaces
* @param  string  $replace_with
* @param  bool    $is_folder
*
* @return string
*/
function fix_filename($str, $config, $is_folder = false)
{
    $str = sanitize($str);
    if ($config['convert_spaces']) {
        $str = str_replace(' ', $config['replace_with'], $str);
    }

    if ($config['transliteration']) {
        if (!mb_detect_encoding($str, 'UTF-8', true)) {
            $str = utf8_encode($str);
        }
        if (function_exists('transliterator_transliterate')) {
            $str = transliterator_transliterate('Any-Latin; Latin-ASCII', $str);
        } else {
            $str = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $str);
        }

        $str = preg_replace("/[^a-zA-Z0-9\.\[\]_| -]/", '', $str);
    }

    $str = str_replace(array( '"', "'", "/", "\\" ), "", $str);
    $str = strip_tags($str);

    // Empty or incorrectly transliterated filename.
    // Here is a point: a good file UNKNOWN_LANGUAGE.jpg could become .jpg in previous code.
    // So we add that default 'file' name to fix that issue.
    if (!$config['empty_filename'] && strpos($str, '.') === 0 && $is_folder === false) {
        $str = 'file' . $str;
    }

    return trim($str);
}

/**
* Cleanup directory name
*
* @param  string  $str
*
* @return  string
*/
function fix_dirname($str)
{
    return str_replace('~', ' ', dirname(str_replace(' ', '~', $str)));
}

/**
* Correct strtoupper handling
*
* @param  string  $str
*
* @return  string
*/
function fix_strtoupper($str)
{
    if (function_exists('mb_strtoupper')) {
        return mb_strtoupper($str);
    } else {
        return strtoupper($str);
    }
}

/**
* Correct strtolower handling
*
* @param  string  $str
*
* @return  string
*/
function fix_strtolower($str)
{
    if (function_exists('mb_strtoupper')) {
        return mb_strtolower($str);
    } else {
        return strtolower($str);
    }
}

function fix_path($path, $config)
{
    $info = pathinfo($path);
    $tmp_path = $info['dirname'];
    $str = fix_filename($info['filename'], $config);
    if ($tmp_path != "") {
        return $tmp_path . DIRECTORY_SEPARATOR . $str;
    } else {
        return $str;
    }
}

/**
* @param  $current_path
* @param  $fld
*
* @return  bool
*/
function config_loading($current_path, $fld)
{
    if (file_exists($current_path . $fld . ".config")) {
        require_once($current_path . $fld . ".config");

        return true;
    }
    echo "!!!!" . $parent = fix_dirname($fld);
    if ($parent != "." && ! empty($parent)) {
        config_loading($current_path, $parent);
    }

    return false;
}

/**
* Check if memory is enough to process image
*
* @param  string  $img
* @param  int     $max_breedte
* @param  int     $max_hoogte
*
* @return bool
*/
function image_check_memory_usage($img, $max_breedte, $max_hoogte)
{
    if (file_exists($img)) {
        $K64 = 65536; // number of bytes in 64K
        $memory_usage = memory_get_usage();
        if (ini_get('memory_limit') > 0) {
            $mem = ini_get('memory_limit');
            $memory_limit = 0;
            if (strpos($mem, 'M') !== false) {
                $memory_limit = abs(intval(str_replace(array('M'), '', $mem) * 1024 * 1024));
            }
            if (strpos($mem, 'G') !== false) {
                $memory_limit = abs(intval(str_replace(array('G'), '', $mem) * 1024 * 1024 * 1024));
            }
            
            $image_properties = getimagesize($img);
            $image_width = $image_properties[0];
            $image_height = $image_properties[1];
            if (isset($image_properties['bits'])) {
                $image_bits = $image_properties['bits'];
            } else {
                $image_bits = 0;
            }
            $image_memory_usage = $K64 + ($image_width * $image_height * ($image_bits >> 3) * 2);
            $thumb_memory_usage = $K64 + ($max_breedte * $max_hoogte * ($image_bits >> 3) * 2);
            $memory_needed = abs(intval($memory_usage + $image_memory_usage + $thumb_memory_usage));

            if ($memory_needed > $memory_limit) {
                return false;
            }
        }
        return true;
    }
    return false;
}

/**
* Check is string is ended with needle
*
* @param  string  $haystack
* @param  string  $needle
*
* @return  bool
*/
if (!function_exists('ends_with')) {
    function ends_with($haystack, $needle)
    {
        return $needle === "" || substr($haystack, -strlen($needle)) === $needle;
    }
}

/**
* TODO REFACTOR THIS!
*
* @param $targetPath
* @param $targetFile
* @param $name
* @param $current_path
* @param $config
*   relative_image_creation
*   relative_path_from_current_pos
*   relative_image_creation_name_to_prepend
*   relative_image_creation_name_to_append
*   relative_image_creation_width
*   relative_image_creation_height
*   relative_image_creation_option
*   fixed_image_creation
*   fixed_path_from_filemanager
*   fixed_image_creation_name_to_prepend
*   fixed_image_creation_to_append
*   fixed_image_creation_width
*   fixed_image_creation_height
*   fixed_image_creation_option
*
* @return bool
*/
function new_thumbnails_creation($targetPath, $targetFile, $name, $current_path, $config)
{
    //create relative thumbs
    $all_ok = true;

    $info = pathinfo($name);
    $info['filename'] = fix_filename($info['filename'], $config);
    if ($config['relative_image_creation']) {
        foreach ($config['relative_path_from_current_pos'] as $k => $path) {
            if ($path != "" && $path[ strlen($path) - 1 ] != "/") {
                $path .= "/";
            }
            if (! file_exists($targetPath . $path)) {
                create_folder($targetPath . $path, false);
            }
            if (! ends_with($targetPath, $path)) {
                if (! create_img($targetFile, $targetPath . $path . $config['relative_image_creation_name_to_prepend'][ $k ] . $info['filename'] . $config['relative_image_creation_name_to_append'][ $k ] . "." . $info['extension'], $config['relative_image_creation_width'][ $k ], $config['relative_image_creation_height'][ $k ], $config['relative_image_creation_option'][ $k ])) {
                    $all_ok = false;
                }
            }
        }
    }

    //create fixed thumbs
    if ($config['fixed_image_creation']) {
        foreach ($config['fixed_path_from_filemanager'] as $k => $path) {
            if ($path != "" && $path[ strlen($path) - 1 ] != "/") {
                $path .= "/";
            }
            $base_dir = $path . substr_replace($targetPath, '', 0, strlen($current_path));
            if (! file_exists($base_dir)) {
                create_folder($base_dir, false);
            }
            if (! create_img($targetFile, $base_dir . $config['fixed_image_creation_name_to_prepend'][ $k ] . $info['filename'] . $config['fixed_image_creation_to_append'][ $k ] . "." . $info['extension'], $config['fixed_image_creation_width'][ $k ], $config['fixed_image_creation_height'][ $k ], $config['fixed_image_creation_option'][ $k ])) {
                $all_ok = false;
            }
        }
    }

    return $all_ok;
}


/**
* Get a remote file, using whichever mechanism is enabled
*
* @param  string  $url
*
* @return  bool|mixed|string
*/
function get_file_by_url($url)
{
    if (ini_get('allow_url_fopen')) {
        $arrContextOptions=array(
            "ssl"=>array(
                "verify_peer"=>false,
                "verify_peer_name"=>false,
            ),
        );
        return file_get_contents($url, false, stream_context_create($arrContextOptions));
    }
    if (! function_exists('curl_version')) {
        return false;
    }

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);

    $data = curl_exec($ch);
    curl_close($ch);

    return $data;
}

/**
* test for dir/file writability properly
*
* @param  string  $dir
*
* @return  bool
*/
function is_really_writable($dir)
{
    $dir = rtrim($dir, '/');
    // linux, safe off
    if (DIRECTORY_SEPARATOR == '/' && @ini_get("safe_mode") == false) {
        return is_writable($dir);
    }

    // Windows, safe ON. (have to write a file :S)
    if (is_dir($dir)) {
        $dir = $dir . '/' . md5(mt_rand(1, 1000) . mt_rand(1, 1000));

        if (($fp = @fopen($dir, 'ab')) === false) {
            return false;
        }

        fclose($fp);
        @chmod($dir, 0755);
        @unlink($dir);

        return true;
    } elseif (! is_file($dir) || ($fp = @fopen($dir, 'ab')) === false) {
        return false;
    }

    fclose($fp);

    return true;
}

/**
* Check if a function is callable.
* Some servers disable copy,rename etc.
*
* @parm  string  $name
*
* @return  bool
*/
function is_function_callable($name)
{
    if (function_exists($name) === false) {
        return false;
    }
    $disabled = explode(',', ini_get('disable_functions'));

    return ! in_array($name, $disabled);
}

/**
* recursivly copies everything
*
* @param  string  $source
* @param  string  $destination
* @param  bool    $is_rec
*/
function rcopy($source, $destination, $is_rec = false)
{
    if (is_dir($source)) {
        if ($is_rec === false) {
            $pinfo = pathinfo($source);
            $destination = rtrim($destination, '/') . DIRECTORY_SEPARATOR . $pinfo['basename'];
        }
        if (is_dir($destination) === false) {
            mkdir($destination, 0755, true);
        }

        $files = scandir($source);
        foreach ($files as $file) {
            if ($file != "." && $file != "..") {
                rcopy($source . DIRECTORY_SEPARATOR . $file, rtrim($destination, '/') . DIRECTORY_SEPARATOR . $file, true);
            }
        }
    } else {
        if (file_exists($source)) {
            if (is_dir($destination) === true) {
                $pinfo = pathinfo($source);
                $dest2 = rtrim($destination, '/') . DIRECTORY_SEPARATOR . $pinfo['basename'];
            } else {
                $dest2 = $destination;
            }

            copy($source, $dest2);
        }
    }
}




/**
* recursivly renames everything
*
* I know copy and rename could be done with just one function
* but i split the 2 because sometimes rename fails on windows
* Need more feedback from users and refactor if needed
*
* @param  string  $source
* @param  string  $destination
* @param  bool    $is_rec
*/
function rrename($source, $destination, $is_rec = false)
{
    if (is_dir($source)) {
        if ($is_rec === false) {
            $pinfo = pathinfo($source);
            $destination = rtrim($destination, '/') . DIRECTORY_SEPARATOR . $pinfo['basename'];
        }
        if (is_dir($destination) === false) {
            mkdir($destination, 0755, true);
        }

        $files = scandir($source);
        foreach ($files as $file) {
            if ($file != "." && $file != "..") {
                rrename($source . DIRECTORY_SEPARATOR . $file, rtrim($destination, '/') . DIRECTORY_SEPARATOR . $file, true);
            }
        }
    } else {
        if (file_exists($source)) {
            if (is_dir($destination) === true) {
                $pinfo = pathinfo($source);
                $dest2 = rtrim($destination, '/') . DIRECTORY_SEPARATOR . $pinfo['basename'];
            } else {
                $dest2 = $destination;
            }

            rename($source, $dest2);
        }
    }
}

// On windows rename leaves folders sometime
// This will clear leftover folders
// After more feedback will merge it with rrename
function rrename_after_cleaner($source)
{
    $files = scandir($source);

    foreach ($files as $file) {
        if ($file != "." && $file != "..") {
            if (is_dir($source . DIRECTORY_SEPARATOR . $file)) {
                rrename_after_cleaner($source . DIRECTORY_SEPARATOR . $file);
            } else {
                unlink($source . DIRECTORY_SEPARATOR . $file);
            }
        }
    }

    return rmdir($source);
}

/**
* Recursive chmod
* @param  string  $source
* @param  int     $mode
* @param  string  $rec_option
* @param  bool    $is_rec
*/
function rchmod($source, $mode, $rec_option = "none", $is_rec = false)
{
    if ($rec_option == "none") {
        chmod($source, $mode);
    } else {
        if ($is_rec === false) {
            chmod($source, $mode);
        }

        $files = scandir($source);

        foreach ($files as $file) {
            if ($file != "." && $file != "..") {
                if (is_dir($source . DIRECTORY_SEPARATOR . $file)) {
                    if ($rec_option == "folders" || $rec_option == "both") {
                        chmod($source . DIRECTORY_SEPARATOR . $file, $mode);
                    }
                    rchmod($source . DIRECTORY_SEPARATOR . $file, $mode, $rec_option, true);
                } else {
                    if ($rec_option == "files" || $rec_option == "both") {
                        chmod($source . DIRECTORY_SEPARATOR . $file, $mode);
                    }
                }
            }
        }
    }
}

/**
* @param  string  $input
* @param  bool    $trace
* @param  bool    $halt
*/
function debugger($input, $trace = false, $halt = false)
{
    ob_start();

    echo "<br>----- DEBUG DUMP -----";
    echo "<pre>";
    var_dump($input);
    echo "</pre>";

    if ($trace) {
        if (is_php('5.3.6')) {
            $debug = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
        } else {
            $debug = debug_backtrace(false);
        }

        echo "<br>-----STACK TRACE-----";
        echo "<pre>";
        var_dump($debug);
        echo "</pre>";
    }

    echo "</pre>";
    echo "---------------------------<br>";

    $ret = ob_get_contents();
    ob_end_clean();

    echo $ret;

    if ($halt == true) {
        exit();
    }
}

/**
* @param  string  $version
*
* @return  bool
*/
function is_php($version = '5.0.0')
{
    static $phpVer;
    $version = (string) $version;

    if (! isset($phpVer[ $version ])) {
        $phpVer[ $version ] = (version_compare(PHP_VERSION, $version) < 0) ? false : true;
    }

    return $phpVer[ $version ];
}

/**
* Return the caller location if set in config.php
* @param  string  $version
*
* @return  bool
*/
function AddErrorLocation()
{
    if (defined('DEBUG_ERROR_MESSAGE') and DEBUG_ERROR_MESSAGE) {
        $pile=debug_backtrace();
        return " (@".$pile[0]["file"]."#".$pile[0]["line"].")";
    }
    return "";
}