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Fix #4329 (#4330)

Browse source 
* Create xml.ts

* Update well-known.ts

* Update well-known.ts

* Fix typo

* Update well-known.ts

* Update well-known.ts
This commit is contained in:
Acid Chicken (硫酸鶏) 2019-02-20 16:13:43 +09:00 committed by syuilo
parent 5aadd80243
commit 81aa21915b
2 changed files with 89 additions and 22 deletions
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41
src/prelude/xml.ts Normal file
View file

@ -0,0 +1,41 @@
const map: Record<string, string> = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
'\'': '&apos;'
};
const beginingOfCDATA = '<![CDATA[';
const endOfCDATA = ']]>';
export function escapeValue(x: string): string {
let insideOfCDATA = false;
let builder = '';
for (
let i = 0;
i < x.length;
) {
if (insideOfCDATA) {
if (x.slice(i, i + beginingOfCDATA.length) === beginingOfCDATA) {
insideOfCDATA = true;
i += beginingOfCDATA.length;
} else {
builder += x[i++];
}
} else {
if (x.slice(i, i + endOfCDATA.length) === endOfCDATA) {
insideOfCDATA = false;
i += endOfCDATA.length;
} else {
const b = x[i++];
builder += map[b] || b;
}
}
}
return builder;
}
export function escapeAttribute(x: string): string {
return Object.entries(map).reduce((a, [k, v]) => a.replace(k, v), x);
}

70
src/server/well-known.ts
View file

@ -6,27 +6,37 @@ import parseAcct from '../misc/acct/parse';
import User from '../models/user';
import Acct from '../misc/acct/type';
import { links } from './nodeinfo';
import { escapeAttribute, escapeValue } from '../prelude/xml';
// Init router
const router = new Router();
const XRD = (...x: { element: string, value?: string, attributes?: Record<string, string> }[]) =>
`<?xml version="1.0" encoding="UTF-8"?><XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">${x.map(({ element, value, attributes }) =>
`<${
Object.entries(typeof attributes === 'object' && attributes || {}).reduce((a, [k, v]) => `${a} ${k}="${escapeAttribute(v)}"`, element)
}${
typeof value === 'string' ? `>${escapeValue(value)}</${element}` : '/'
}>`).reduce((a, c) => a + c, '')}</XRD>`;
const webFingerPath = '/.well-known/webfinger';
const jrd = 'application/jrd+json';
const xrd = 'application/xrd+xml';
router.get('/.well-known/host-meta', async ctx => {
ctx.set('Content-Type', 'application/xrd+xml');
ctx.body = `<?xml version="1.0" encoding="UTF-8"?>
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
<Link rel="lrdd" type="application/xrd+xml" template="${config.url}${webFingerPath}?resource={uri}"/>
</XRD>
`;
ctx.set('Content-Type', xrd);
ctx.body = XRD({ element: 'Link', attributes: {
type: xrd,
template: `${config.url}${webFingerPath}?resource={uri}`
}});
});
router.get('/.well-known/host-meta.json', async ctx => {
ctx.set('Content-Type', 'application/jrd+json');
ctx.set('Content-Type', jrd);
ctx.body = {
links: [{
rel: 'lrdd',
type: 'application/xrd+xml',
type: jrd,
template: `${config.url}${webFingerPath}?resource={uri}`
}]
};
@ -75,22 +85,38 @@ router.get(webFingerPath, async ctx => {
return;
}
ctx.body = {
subject: `acct:${user.username}@${config.host}`,
links: [{
rel: 'self',
type: 'application/activity+json',
href: `${config.url}/users/${user._id}`
}, {
rel: 'http://webfinger.net/rel/profile-page',
type: 'text/html',
href: `${config.url}/@${user.username}`
}, {
rel: 'http://ostatus.org/schema/1.0/subscribe',
template: `${config.url}/authorize-follow?acct={uri}`
}]
const subject = `acct:${user.username}@${config.host}`;
const self = {
rel: 'self',
type: 'application/activity+json',
href: `${config.url}/users/${user._id}`
};
const profilePage = {
rel: 'http://webfinger.net/rel/profile-page',
type: 'text/html',
href: `${config.url}/@${user.username}`
};
const subscribe = {
rel: 'http://ostatus.org/schema/1.0/subscribe',
template: `${config.url}/authorize-follow?acct={uri}`
};
if (ctx.accepts(jrd, xrd) === xrd) {
ctx.body = XRD(
{ element: 'Subject', value: subject },
{ element: 'Link', attributes: self },
{ element: 'Link', attributes: profilePage },
{ element: 'Link', attributes: subscribe });
ctx.type = xrd;
} else {
ctx.body = {
subject,
links: [self, profilePage, subscribe]
};
ctx.type = jrd;
}
ctx.vary('Accept');
ctx.set('Cache-Control', 'public, max-age=180');
});