node/routes: Fix error handling
We should always send HTML if the user agent expects it. If they do not, they should clearly indicate such via the Accept header. Closes #2297
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@ -48,8 +48,8 @@ router.all("*", (req, res, next) => {
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// Assume anything that explicitly accepts text/html is a user browsing a
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// page (as opposed to an xhr request). Don't use `req.accepts()` since
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// *every* request that I've seen (in Firefox and Chromium at least)
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// includes `*/*` making it always truthy.
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if (typeof req.headers.accepts === "string" && req.headers.accepts.split(",").includes("text/html")) {
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// includes `*/*` making it always truthy. Even for css/javascript.
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if (req.headers.accept && req.headers.accept.includes("text/html")) {
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// Let the login through.
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if (/\/login\/?/.test(req.path)) {
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return next()
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@ -125,7 +125,7 @@ export const register = async (
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throw new HttpError("Not Found", HttpCode.NotFound)
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})
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const errorHandler: express.ErrorRequestHandler = async (err, req, res) => {
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const errorHandler: express.ErrorRequestHandler = async (err, req, res, next) => {
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if (err.code === "ENOENT" || err.code === "EISDIR") {
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err.status = HttpCode.NotFound
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}
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@ -133,12 +133,11 @@ export const register = async (
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const status = err.status ?? err.statusCode ?? 500
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res.status(status)
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if (req.accepts("application/json")) {
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res.json({
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error: err.message,
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...(err.details || {}),
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})
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} else {
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// Assume anything that explicitly accepts text/html is a user browsing a
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// page (as opposed to an xhr request). Don't use `req.accepts()` since
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// *every* request that I've seen (in Firefox and Chromium at least)
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// includes `*/*` making it always truthy. Even for css/javascript.
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if (req.headers.accept && req.headers.accept.includes("text/html")) {
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const resourcePath = path.resolve(rootPath, "src/browser/pages/error.html")
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res.set("Content-Type", getMediaMime(resourcePath))
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const content = await fs.readFile(resourcePath, "utf8")
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@ -148,6 +147,11 @@ export const register = async (
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.replace(/{{ERROR_HEADER}}/g, status)
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.replace(/{{ERROR_BODY}}/g, err.message),
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)
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} else {
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res.json({
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error: err.message,
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...(err.details || {}),
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})
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}
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}
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