93e0898c12
- this middlware is standalone and has 100% test coverage, therefore we can move it out to a separate package and remap the requires accordingly
32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
const semver = require('semver');
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const errors = require('@tryghost/errors');
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const tpl = require('@tryghost/tpl');
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const messages = {
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versionMismatch: 'Client request for {clientVersion} does not match server version {serverVersion}.'
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};
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function checkVersionMatch(req, res, next) {
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const clientVersion = req.get('X-Ghost-Version');
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// can contain pre-release suffix, you should be able to use e.g. 1.19.0-pre [server] with 1.18.0 [client]
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const serverVersion = res.locals.version.match(/^(\d+\.)?(\d+\.)?(\d+)/)[0];
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const constraint = '^' + clientVersion + '.0';
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// no error when client is on an earlier minor version than server
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// error when client is on a later minor version than server
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// always error when the major version is different
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if (clientVersion && !semver.satisfies(serverVersion, constraint)) {
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return next(new errors.VersionMismatchError({
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message: tpl(messages.versionMismatch, {
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clientVersion: clientVersion,
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serverVersion: serverVersion
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})
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}));
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}
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next();
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}
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module.exports = checkVersionMatch;
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