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Add detect_base_url config

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This diff adds the detect_base_url config, controlled by the
DETECT_BASE_URL env variable. When set to true, the BASE_URL setting is
ignored, and the base_url is derived from the request protocol and host
header.

Test Plan: Started up a local instance in my homelab, running docker
node:15 image with a nginx reverse proxy. Configured nginx to use the
same backend with multiple hostnames on https. Opened in browser and
confirmed og:url meta tag uses correct url.
This commit is contained in:
Cullen Walsh 2021-05-05 21:15:02 -07:00
parent 385ac595b9
commit 02e8cb264f
3 changed files with 29 additions and 8 deletions
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13
server/routes/index.js
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@ -36,9 +36,14 @@ module.exports = function(app) {
defaultSrc: ["'self'"],
connectSrc: [
"'self'",
config.base_url.replace(/^https:\/\//, 'wss://')
function(req) {
const baseUrl = config.deriveBaseUrl(req);
const r = baseUrl.replace(/^http(s?):\/\//, 'ws$1://');
console.log([baseUrl, r]);
return r;
}
],
imgSrc: ["'self'", "data:"],
imgSrc: ["'self'", 'data:'],
scriptSrc: [
"'self'",
function(req) {
@ -52,10 +57,6 @@ module.exports = function(app) {
}
};
csp.directives.connectSrc.push(
config.base_url.replace(/^https:\/\//, 'wss://')
);
app.use(helmet.contentSecurityPolicy(csp));
}