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341
app/common/library/Upload.php
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341
app/common/library/Upload.php
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<?php
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namespace app\common\library;
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use Throwable;
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use ba\Random;
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use ba\Filesystem;
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use think\Exception;
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use think\helper\Str;
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use think\facade\Config;
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use think\facade\Validate;
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use think\file\UploadedFile;
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use InvalidArgumentException;
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use think\validate\ValidateRule;
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use app\common\model\Attachment;
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use app\common\library\upload\Driver;
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/**
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* 上传
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*/
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class Upload
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{
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/**
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* 上传配置
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*/
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protected array $config = [];
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/**
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* 被上传文件
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*/
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protected ?UploadedFile $file = null;
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/**
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* 是否是图片
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*/
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protected bool $isImage = false;
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/**
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* 文件信息
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*/
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protected array $fileInfo;
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/**
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* 上传驱动
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*/
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protected array $driver = [
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'name' => 'local', // 默认驱动:local=本地
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'handler' => [], // 驱动句柄
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'namespace' => '\\app\\common\\library\\upload\\driver\\', // 驱动类的命名空间
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];
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/**
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* 存储子目录
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*/
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protected string $topic = 'default';
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/**
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* 构造方法
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* @param ?UploadedFile $file 上传的文件
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* @param array $config 配置
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* @throws Throwable
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*/
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public function __construct(?UploadedFile $file = null, array $config = [])
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{
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$upload = Config::get('upload');
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$this->config = array_merge($upload, $config);
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if ($file) {
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$this->setFile($file);
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}
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}
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/**
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* 设置上传文件
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* @param ?UploadedFile $file
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* @return Upload
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* @throws Throwable
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*/
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public function setFile(?UploadedFile $file): Upload
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{
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if (empty($file)) {
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throw new Exception(__('No files were uploaded'));
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}
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$suffix = strtolower($file->extension());
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$suffix = $suffix && preg_match("/^[a-zA-Z0-9]+$/", $suffix) ? $suffix : 'file';
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$fileInfo['suffix'] = $suffix;
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$fileInfo['type'] = $file->getMime();
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$fileInfo['size'] = $file->getSize();
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$fileInfo['name'] = $file->getOriginalName();
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$fileInfo['sha1'] = $file->sha1();
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$this->file = $file;
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$this->fileInfo = $fileInfo;
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return $this;
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}
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/**
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* 设置上传驱动
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*/
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public function setDriver(string $driver): Upload
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{
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$this->driver['name'] = $driver;
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return $this;
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}
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/**
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* 获取上传驱动句柄
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* @param ?string $driver 驱动名称
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* @param bool $noDriveException 找不到驱动是否抛出异常
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* @return bool|Driver
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*/
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public function getDriver(?string $driver = null, bool $noDriveException = true): bool|Driver
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{
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if (is_null($driver)) {
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$driver = $this->driver['name'];
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}
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if (!isset($this->driver['handler'][$driver])) {
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$class = $this->resolveDriverClass($driver);
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if ($class) {
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$this->driver['handler'][$driver] = new $class();
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} elseif ($noDriveException) {
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throw new InvalidArgumentException(__('Driver %s not supported', [$driver]));
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}
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}
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return $this->driver['handler'][$driver] ?? false;
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}
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/**
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* 获取驱动类
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*/
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protected function resolveDriverClass(string $driver): bool|string
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{
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if ($this->driver['namespace'] || str_contains($driver, '\\')) {
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$class = str_contains($driver, '\\') ? $driver : $this->driver['namespace'] . Str::studly($driver);
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if (class_exists($class)) {
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return $class;
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}
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}
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return false;
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}
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/**
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* 设置存储子目录
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*/
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public function setTopic(string $topic): Upload
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{
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$this->topic = $topic;
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return $this;
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}
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/**
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* 检查是否是图片并设置好相关属性
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* @return bool
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* @throws Throwable
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*/
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protected function checkIsImage(): bool
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{
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if (in_array($this->fileInfo['type'], ['image/gif', 'image/jpg', 'image/jpeg', 'image/bmp', 'image/png', 'image/webp']) || in_array($this->fileInfo['suffix'], ['gif', 'jpg', 'jpeg', 'bmp', 'png', 'webp'])) {
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$imgInfo = getimagesize($this->file->getPathname());
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if (!$imgInfo || !isset($imgInfo[0]) || !isset($imgInfo[1])) {
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throw new Exception(__('The uploaded image file is not a valid image'));
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}
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$this->fileInfo['width'] = $imgInfo[0];
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$this->fileInfo['height'] = $imgInfo[1];
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$this->isImage = true;
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return true;
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}
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return false;
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}
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/**
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* 上传的文件是否为图片
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* @return bool
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*/
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public function isImage(): bool
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{
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return $this->isImage;
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}
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/**
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* 获取文件后缀
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* @return string
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*/
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public function getSuffix(): string
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{
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return $this->fileInfo['suffix'] ?: 'file';
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}
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/**
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* 获取文件保存路径和名称
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* @param ?string $saveName
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* @param ?string $filename
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* @param ?string $sha1
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* @return string
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*/
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public function getSaveName(?string $saveName = null, ?string $filename = null, ?string $sha1 = null): string
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{
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if ($filename) {
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$suffix = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
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$suffix = $suffix && preg_match("/^[a-zA-Z0-9]+$/", $suffix) ? $suffix : 'file';
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} else {
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$suffix = $this->fileInfo['suffix'];
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}
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$filename = $filename ?: $this->fileInfo['name'];
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$sha1 = $sha1 ?: $this->fileInfo['sha1'];
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$replaceArr = [
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'{topic}' => $this->topic,
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'{year}' => date("Y"),
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'{mon}' => date("m"),
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'{day}' => date("d"),
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'{hour}' => date("H"),
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'{min}' => date("i"),
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'{sec}' => date("s"),
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'{random}' => Random::build(),
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'{random32}' => Random::build('alnum', 32),
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'{fileName}' => $this->getFileNameSubstr($filename, $suffix),
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'{suffix}' => $suffix,
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'{.suffix}' => $suffix ? '.' . $suffix : '',
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'{fileSha1}' => $sha1,
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];
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$saveName = $saveName ?: $this->config['save_name'];
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return Filesystem::fsFit(str_replace(array_keys($replaceArr), array_values($replaceArr), $saveName));
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}
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/**
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* 验证文件是否符合上传配置要求
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* @throws Throwable
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*/
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public function validates(): void
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{
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if (empty($this->file)) {
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throw new Exception(__('No files have been uploaded or the file size exceeds the upload limit of the server'));
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}
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$size = Filesystem::fileUnitToByte($this->config['max_size']);
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$mime = $this->checkConfig($this->config['allowed_mime_types']);
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$suffix = $this->checkConfig($this->config['allowed_suffixes']);
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// 文件大小
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$fileValidateRule = ValidateRule::fileSize($size, __('The uploaded file is too large (%sMiB), Maximum file size:%sMiB', [
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round($this->fileInfo['size'] / pow(1024, 2), 2),
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round($size / pow(1024, 2), 2)
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]));
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// 文件后缀
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if ($suffix) {
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$fileValidateRule->fileExt($suffix, __('The uploaded file format is not allowed'));
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}
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// 文件 MIME 类型
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if ($mime) {
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$fileValidateRule->fileMime($mime, __('The uploaded file format is not allowed'));
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}
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// 图片文件利用tp内置规则做一些额外检查
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if ($this->checkIsImage()) {
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$fileValidateRule->image("{$this->fileInfo['width']},{$this->fileInfo['height']}", __('The uploaded image file is not a valid image'));
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}
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Validate::failException()
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->rule([
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'file' => $fileValidateRule,
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'topic' => ValidateRule::is('alphaDash', __('Topic format error')),
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'driver' => ValidateRule::is('alphaDash', __('Driver %s not supported', [$this->driver['name']])),
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])
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->check([
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'file' => $this->file,
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'topic' => $this->topic,
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'driver' => $this->driver['name'],
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]);
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}
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/**
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* 上传文件
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* @param ?string $saveName
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* @param int $adminId
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* @param int $userId
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* @return array
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* @throws Throwable
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*/
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public function upload(?string $saveName = null, int $adminId = 0, int $userId = 0): array
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{
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$this->validates();
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$driver = $this->getDriver();
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$saveName = $saveName ?: $this->getSaveName();
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$params = [
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'topic' => $this->topic,
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'admin_id' => $adminId,
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'user_id' => $userId,
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'url' => $driver->url($saveName, false),
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'width' => $this->fileInfo['width'] ?? 0,
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'height' => $this->fileInfo['height'] ?? 0,
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'name' => $this->getFileNameSubstr($this->fileInfo['name'], $this->fileInfo['suffix'], 100) . ".{$this->fileInfo['suffix']}",
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'size' => $this->fileInfo['size'],
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'mimetype' => $this->fileInfo['type'],
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'storage' => $this->driver['name'],
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'sha1' => $this->fileInfo['sha1']
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];
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// 附件数据入库 - 不依赖模型新增前事件，确保入库前文件已经移动完成
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$attachment = Attachment::where('sha1', $params['sha1'])
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->where('topic', $params['topic'])
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->where('storage', $params['storage'])
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->find();
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if ($attachment && $driver->exists($attachment->url)) {
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$attachment->quote++;
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$attachment->last_upload_time = time();
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} else {
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$driver->save($this->file, $saveName);
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$attachment = new Attachment();
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$attachment->data(array_filter($params));
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}
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$attachment->save();
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return $attachment->toArray();
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}
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/**
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* 获取文件名称字符串的子串
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*/
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public function getFileNameSubstr(string $fileName, string $suffix, int $length = 15): string
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{
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// 对 $fileName 中不利于传输的字符串进行过滤
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$pattern = "/[\s:@#?&\/=',+]+/u";
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$fileName = str_replace(".$suffix", '', $fileName);
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$fileName = preg_replace($pattern, '', $fileName);
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return mb_substr(htmlspecialchars(strip_tags($fileName)), 0, $length);
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}
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/**
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* 检查配置项，将 string 类型的配置转换为 array，并且将所有字母转换为小写
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*/
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protected function checkConfig($configItem): array
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{
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if (is_array($configItem)) {
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return array_map('strtolower', $configItem);
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} else {
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return explode(',', strtolower($configItem));
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}
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}
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}
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