119 lines
4.1 KiB
PHP
119 lines
4.1 KiB
PHP
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<?php
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// ============================================
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// 文件: lib/storage/local.php
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// 说明: 本地硬盘存储驱动（默认，行为与改造前一致）
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// ============================================
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class StorageLocal {
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public function id() { return 'local'; }
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public function label() { return '本地硬盘'; }
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// 把文件落到站点目录下（先尝试 rename，跨文件系统时退化为 copy+unlink）
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public function putFile($srcPath, $key, $mime = null) {
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$target = $this->absPath($key);
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$dir = dirname($target);
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if (!is_dir($dir) && !@mkdir($dir, 0755, true)) {
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return ['ok' => false, 'error' => "无法创建目录：{$dir}"];
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}
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if (@rename($srcPath, $target)) {
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@chmod($target, 0644);
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return ['ok' => true, 'error' => ''];
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}
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if (@copy($srcPath, $target)) {
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@unlink($srcPath);
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@chmod($target, 0644);
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return ['ok' => true, 'error' => ''];
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}
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return ['ok' => false, 'error' => "写入文件失败：{$key}（请检查目录权限）"];
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}
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public function putContents($binary, $key, $mime = null) {
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$target = $this->absPath($key);
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$dir = dirname($target);
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if (!is_dir($dir) && !@mkdir($dir, 0755, true)) {
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return ['ok' => false, 'error' => "无法创建目录：{$dir}"];
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}
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if (@file_put_contents($target, $binary) === false) {
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return ['ok' => false, 'error' => "写入文件失败：{$key}（请检查目录权限）"];
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}
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@chmod($target, 0644);
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return ['ok' => true, 'error' => ''];
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}
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public function delete($key) {
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$target = $this->absPath($key);
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if (is_file($target)) {
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return @unlink($target);
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}
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return true; // 不存在视为成功
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}
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public function url($key) {
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return '/' . ltrim((string)$key, '/');
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}
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public function exists($key) {
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return is_file($this->absPath($key));
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}
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/**
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* 服务端读取对象。本地驱动直接读盘。
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* 返回结构与 storageHttp() 同构（etag / last-modified 供 media.php 做 304 判断）。
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*/
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public function get($key, array $extra = []) {
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$abs = $this->absPath($key);
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if (!is_file($abs) || !is_readable($abs)) {
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return ['ok' => false, 'status' => 404, 'headers' => [], 'body' => '', 'error' => '对象不存在'];
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}
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$body = @file_get_contents($abs);
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if ($body === false) {
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return ['ok' => false, 'status' => 500, 'headers' => [], 'body' => '', 'error' => '读取文件失败'];
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}
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return [
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'ok' => true,
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'status' => 200,
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'headers' => [
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'content-type' => storageMimeOfFile($abs),
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'content-length' => (string)strlen($body),
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'etag' => '"' . md5($body) . '"',
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'last-modified' => gmdate('D, d M Y H:i:s \G\M\T', (int)@filemtime($abs)),
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],
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'body' => $body,
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'error' => '',
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];
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}
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public function test() {
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// 验证上传目录可写
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$probe = UPLOAD_DIR . '.storage_test_' . uniqid();
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if (@file_put_contents($probe, 'ok') === false) {
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return ['ok' => false, 'error' => '上传目录不可写：' . UPLOAD_DIR];
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}
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@unlink($probe);
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$free = @disk_free_space(ROOT_DIR);
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$msg = '本地存储正常，上传目录可写。';
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if ($free !== false) {
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$msg .= ' 剩余空间 ' . formatBytes($free) . '。';
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}
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return ['ok' => true, 'error' => '', 'message' => $msg];
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}
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private function absPath($key) {
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return ROOT_DIR . '/' . ltrim((string)$key, '/');
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}
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}
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// 字节数格式化（设置页展示用）
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function formatBytes($bytes, $precision = 2) {
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$units = ['B', 'KB', 'MB', 'GB', 'TB'];
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$bytes = max(0, (float)$bytes);
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$i = 0;
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while ($bytes >= 1024 && $i < count($units) - 1) {
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$bytes /= 1024;
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$i++;
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}
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return round($bytes, $i === 0 ? 0 : $precision) . ' ' . $units[$i];
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}
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