43 lines
1.0 KiB
TypeScript
43 lines
1.0 KiB
TypeScript
import * as Koa from 'koa';
|
|
import * as request from 'request-promise-native';
|
|
import summaly from 'summaly';
|
|
import config from '../../config';
|
|
import fetchMeta from '../../misc/fetch-meta';
|
|
|
|
module.exports = async (ctx: Koa.Context) => {
|
|
const meta = await fetchMeta();
|
|
|
|
try {
|
|
const summary = meta.summalyProxy ? await request.get({
|
|
url: meta.summalyProxy,
|
|
proxy: config.proxy,
|
|
qs: {
|
|
url: ctx.query.url
|
|
},
|
|
json: true
|
|
}) : await summaly(ctx.query.url, {
|
|
followRedirects: false
|
|
});
|
|
|
|
summary.icon = wrap(summary.icon);
|
|
summary.thumbnail = wrap(summary.thumbnail);
|
|
|
|
// Cache 7days
|
|
ctx.set('Cache-Control', 'max-age=604800, immutable');
|
|
|
|
ctx.body = summary;
|
|
} catch (e) {
|
|
ctx.status = 200;
|
|
ctx.set('Cache-Control', 'max-age=86400, immutable');
|
|
ctx.body = '{}';
|
|
}
|
|
};
|
|
|
|
function wrap(url: string): string {
|
|
return url != null
|
|
? url.startsWith('https://') || url.startsWith('data:')
|
|
? url
|
|
: `https://images.weserv.nl/?url=${encodeURIComponent(url.replace(/^http:\/\//, ''))}`
|
|
: null;
|
|
}
|