28 lines
938 B
JavaScript
28 lines
938 B
JavaScript
// @flow
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import semver from 'semver';
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import { type Context } from 'koa';
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import pkg from 'rich-markdown-editor/package.json';
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import { EditorUpdateError } from '../../errors';
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export default function editor() {
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return async function editorMiddleware(ctx: Context, next: () => Promise<*>) {
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const clientVersion = ctx.headers['x-editor-version'];
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// If the editor version on the client is behind the current version being
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// served in production by either a minor (new features), or major (breaking
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// changes) then force a client reload.
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if (clientVersion) {
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const parsedClientVersion = semver.parse(clientVersion);
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const parsedCurrentVersion = semver.parse(pkg.version);
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if (
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parsedClientVersion.major < parsedCurrentVersion.major ||
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parsedClientVersion.minor < parsedCurrentVersion.minor
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) {
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throw new EditorUpdateError();
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}
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}
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return next();
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};
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}
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