hedgedoc/lib/utils.js
Erik Michelson 90c5ab0833
Exclude /metrics and /status routes from session initialization
This commit adds a `useUnless` helper method which can be used as a middleware for express.
It receives an express-middleware and an array of paths.
When a request matches one of the given paths, this middleware does nothing.
Otherwise the given middleware is called.

For the express-session middleware this helper middleware is used to avoid session creation on purely status routes.
See #1446

Signed-off-by: Erik Michelson <github@erik.michelson.eu>
2021-07-20 23:56:54 +02:00

36 lines
797 B
JavaScript

'use strict'
exports.isSQLite = function isSQLite (sequelize) {
return sequelize.options.dialect === 'sqlite'
}
exports.getImageMimeType = function getImageMimeType (imagePath) {
const fileExtension = /[^.]+$/.exec(imagePath)
switch (fileExtension[0].toLowerCase()) {
case 'bmp':
return 'image/bmp'
case 'gif':
return 'image/gif'
case 'jpg':
case 'jpeg':
return 'image/jpeg'
case 'png':
return 'image/png'
case 'tiff':
return 'image/tiff'
case 'svg':
return 'image/svg+xml'
default:
return undefined
}
}
exports.useUnless = function excludeRoute (paths, middleware) {
return function (req, res, next) {
if (paths.includes(req.path)) {
return next()
}
return middleware(req, res, next)
}
}