101 lines
2.8 KiB
PHP
101 lines
2.8 KiB
PHP
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<?php
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namespace App\Service\common;
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/**
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* 媒体地址规整
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*
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* 老后台的约定是：入库存相对路径（/storage/xxx.jpg），出库用 asset() 拼成绝对地址；
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* 而 OSS 上传拿到的本来就是绝对地址。两种值混在同一列里，读写都得判断一次。
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* 这里把判断收在一处，业务 Service 只调 toPublic / toStorage。
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*/
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class MediaUrlService
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{
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private static mixed $_instance;
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public static function getInstance(): null|static
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{
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$name = get_called_class();
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if (!isset(self::$_instance[$name])) {
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self::$_instance[$name] = new static();
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}
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return self::$_instance[$name];
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}
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/**
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* 出库：相对路径补上站点域名，绝对地址原样返回
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*/
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public function toPublic(?string $path): string
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{
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$path = trim((string) $path);
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if ($path === '') {
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return '';
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}
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if ($this->isAbsolute($path)) {
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return $path;
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}
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return rtrim((string) config('app.url'), '/') . '/' . ltrim($path, '/');
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}
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/**
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* 入库：本站域名下的地址存成相对路径，避免换域名后历史数据全指向旧域名；
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* 第三方 OSS 地址保持原样
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*/
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public function toStorage(?string $url): string
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{
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$url = trim((string) $url);
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if ($url === '') {
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return '';
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}
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$appUrl = rtrim((string) config('app.url'), '/');
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if ($appUrl !== '' && str_starts_with($url, $appUrl)) {
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return substr($url, strlen($appUrl)) ?: '';
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}
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return $url;
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}
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/**
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* 批量出库，给 list 用
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*/
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public function publicEach(array &$rows, array $fields): void
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{
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foreach ($rows as &$row) {
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foreach ($fields as $field) {
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if (array_key_exists($field, $row)) {
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$row[$field] = $this->toPublic($row[$field]);
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}
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}
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}
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unset($row);
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}
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/**
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* 前端图片上传组件回传的是数组，取第一个；已是字符串则原样
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*/
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public function firstOf(mixed $value): string
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{
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if (is_array($value)) {
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$value = $value[0] ?? '';
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}
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return $this->toStorage(is_string($value) ? $value : '');
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}
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/**
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* 去掉 OSS 处理参数（?imageView2/... 或 ?watermark/...），用于素材库按 path 做引用匹配
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*/
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public function stripProcessParams(?string $url): string
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{
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$url = trim((string) $url);
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if ($url === '') {
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return '';
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}
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$pos = strpos($url, '?');
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return $pos === false ? $url : substr($url, 0, $pos);
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}
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private function isAbsolute(string $path): bool
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{
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return (bool) preg_match('#^(https?:)?//#i', $path);
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}
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}
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