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自定義防盜鏈

更新于：2020-05-30 9:11:57

addEventListener('fetch', event => {
    event.respondWith(handleRequest(event.request))
})

/**
 * Fetch and log a request
 * @param {Request} request
 */
const ErrorPageHotLink = `
<!DOCTYPE html>
<html>
<body>
<h1>Error Page</h1>
<p>此網(wǎng)站的管理員禁止盜鏈此資源</p>
</body>
</html>
`;
// 防盜鏈錯誤頁面
async function rawHtmlResponse(html) {
    const init = {
        status: 403,
        headers: {
            'content-type': 'text/html;charset=UTF-8',
        },
    };
    return new Response(html, init);
}
async function handleRequest(request) {
    const refer = request.headers.get('referer')
    // 自定義判斷refer來進行錯誤頁面返回
    if (refer === null || refer === '') {
        return rawHtmlResponse(ErrorPageHotLink);
    }
    const response = await fetch(request);
    return response;
}