game/_incl_data/class/Uploader.php

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<?php
/**
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* Единая функция для заливки файлов на сервер.
*
* @author Ivor Barhansky <me@lopar.space>
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* @version 1
*/
class Uploader
{
private array $width = ['min' => 0, 'max' => 0];
private array $height = ['min' => 0, 'max' => 0];
private int $maxFileSizeMb;
private string $savePath;
private string $extensions = 'jpg|png|jpeg|gif';
private array $extMatches = [];
private array $FILE;
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private $cnm;
public static string $error;
public function __construct($name, $cnm = null)
{
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if (!isset($_FILES[$name])) {
return;
}
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$this->FILE = $_FILES[$name];
$this->cnm = $cnm;
}
/**
* @param int $max
* @param int|null $min
* @return void
*/
public function setWidth(int $max, ?int $min = null)
{
$this->width['min'] = is_null($min) ? $max : $min;
$this->width['max'] = $max;
}
/**
* @param int $max
* @param int|null $min
* @return void
*/
public function setHeight(int $max, ?int $min = null)
{
$this->height['min'] = is_null($min) ? $max : $min;
$this->height['max'] = $max;
}
/**
* @param $megabytes
* @return void
*/
public function setMaxFileSize($megabytes)
{
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$this->maxFileSizeMb = $megabytes;
}
/**
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* @param string $path путь от корня до конечной папки без открывающего слеша.
* @return void
*/
public function setSavePath(string $path)
{
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$this->savePath = $_SERVER['DOCUMENT_ROOT'] . '/' . $path;
}
/**
* @param string|array $ext
* @return void
*/
public function setExtentions($ext)
{
if (is_array($ext)) {
$arr = $ext;
} else {
$arr[] = $ext;
}
if (!$arr) {
return;
}
$this->extensions = implode('|', $arr);
}
/**
* @param int $width
* @param int $height
* @return void
*/
public function setDimensions(int $width, int $height)
{
$this->setWidth($width);
$this->setHeight($height);
}
private function hasNormalDimensions(): bool
{
[$width, $height] = getimagesize($this->FILE['tmp_name']);
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if (!$width || !$height) {
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self::$error = 'Не подтянулись размеры файла.';
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return false;
}
if (
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($width < $this->width['min'] || $width > $this->width['max']) ||
($height < $this->height['min'] || $height > $this->height['max'])
) {
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self::$error = 'Требования к размеру: ';
if ($this->width['min'] !== $this->width['max'] || $this->height['min'] !== $this->height['max']) {
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self::$error .= "от [{$this->width['min']} x {$this->height['min']}] до ";
}
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self::$error .= "[{$this->width['max']} x {$this->height['max']}].";
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self::$error .= " Текущий размер [$width x $height]";
return false;
}
return true;
}
private function hasNormalFileSize(): bool
{
if (!$this->maxFileSizeMb) {
$this->setMaxFileSize(2);
}
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if ($this->FILE['size'] > $this->maxFileSizeMb * (1024 * 1024) || $this->FILE['size'] <= 0) {
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self::$error = 'Неверный размер файла. Максимальный размер файла ' . $this->maxFileSizeMb . ' МБ';
return false;
}
return true;
}
private function hasNormalType(): bool
{
if (
!preg_match('/\.(' . $this->extensions . ')$/i', $this->FILE['name'], $this->extMatches) ||
!preg_match('/image/i', $this->FILE['type'])
) {
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self::$error = 'Неверный тип файла. Допустимые типы : ' . $this->extensions;
return false;
}
return true;
}
private function hasNormalFilePath(): bool
{
if (!$this->savePath || !is_dir($this->savePath)) {
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self::$error = 'Ошибка загрузки: нет такой папки.';
return false;
}
return true;
}
private function upload()
{
$this->extMatches[1] = strtolower($this->extMatches[1]);
$fn = uniqid('f_', true) . '.' . $this->extMatches[1];
$fn2 = uniqid('f_', true) . '.gif';
if ($this->cnm) {
$fn = $this->cnm;
$fn2 = $this->cnm;
}
if (!move_uploaded_file($this->FILE['tmp_name'], $this->savePath . $fn)) {
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self::$error = 'Ошибка загрузки файла';
return false;
}
return [$fn2, $fn, $this->savePath . $fn];
}
public function saveimg()
{
return $this->hasNormalFilePath() &&
$this->hasNormalDimensions() &&
$this->hasNormalFileSize() &&
$this->hasNormalType() ? $this->upload() : false;
}
}