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Improve error handling

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This commit is contained in:
Tom Moor
2022-12-11 11:27:54 -05:00
parent 5c842087a5
commit 7e22526cc7
4 changed files with 79 additions and 55 deletions
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73
server/onerror.ts
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@@ -14,10 +14,7 @@ let errorHtmlCache: Buffer | undefined;
const readErrorFile = (): Buffer => {
if (isDev) {
return (
errorHtmlCache ??
(errorHtmlCache = fs.readFileSync(path.join(__dirname, "error.dev.html")))
);
return fs.readFileSync(path.join(__dirname, "error.dev.html"));
}
if (isProd) {
@@ -82,10 +79,27 @@ export default function onerror(app: Koa) {
err = newError;
}
if (err.code === "ENOENT") {
if (err instanceof ValidationError) {
// @ts-expect-error status is not a property on ValidationError
err.status = 400;
if (err.errors && err.errors[0]) {
err.message = `${err.errors[0].message} (${err.errors[0].path})`;
}
}
if (
err.code === "ENOENT" ||
err instanceof EmptyResultError ||
/Not found/i.test(err.message)
) {
err.status = 404;
}
if (/Authorization error/i.test(err.message)) {
err.status = 403;
}
if (typeof err.status !== "number" || !http.STATUS_CODES[err.status]) {
err.status = 500;
}
@@ -134,47 +148,37 @@ export default function onerror(app: Koa) {
function json(err: any, ctx: Context) {
ctx.status = err.status;
let message = err.message || err.name;
let error;
let message;
let id;
if (err instanceof ValidationError) {
// super basic form error handling
ctx.status = 400;
if (err.errors && err.errors[0]) {
message = `${err.errors[0].message} (${err.errors[0].path})`;
}
if (ctx.status === 400) {
message = "Validation error";
id = "validation_error";
}
if (err instanceof EmptyResultError || /Not found/i.test(message)) {
if (ctx.status === 401) {
message = "Authentication error";
id = "authentication_error";
}
if (ctx.status === 403) {
message = "Authorization error";
id = "authorization_error";
}
if (ctx.status === 404) {
message = "Resource not found";
ctx.status = 404;
error = "not_found";
id = "not_found";
}
if (/Authorization error/i.test(message)) {
ctx.status = 403;
error = "authorization_error";
}
if (ctx.status === 500) {
message = "Internal server error";
error = "internal_server_error";
id = "internal_server_error";
}
ctx.body = {
ok: false,
error: snakeCase(err.id || error),
error: snakeCase(err.id || id),
status: ctx.status,
message,
data: err.errorData,
message: err.message || message || err.name,
data: err.errorData ?? undefined,
};
// @ts-expect-error ts-migrate(2571) FIXME: Object is of type 'unknown'.
if (!ctx.body.data) {
// @ts-expect-error ts-migrate(2571) FIXME: Object is of type 'unknown'.
delete ctx.body.data;
}
}
/**
@@ -188,6 +192,7 @@ function html(err: any, ctx: Context) {
const page = readErrorFile();
ctx.body = page
.toString()
.replace(/\/\/inject-message\/\//g, escape(err.message))
.replace(/\/\/inject-status\/\//g, escape(err.status))
.replace(/\/\/inject-stack\/\//g, escape(err.stack));
ctx.type = "html";