44 lines
1.4 KiB
JavaScript
44 lines
1.4 KiB
JavaScript
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const { Middleware } = require('libflitter')
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/*
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* Config Middleware
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* -------------------------------------------------------------
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* Checks the specified configuration key (and optionally the value).
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* If the configuration matches the required value, the request can
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* proceed. Otherwise, a 404 will be returned.
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*
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* To use, add the call to your route's middleware:
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*
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* ['middleware::util:Config', {key: 'server.ssl.test', value: true}],
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*
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* In this case, the request would be allowed to proceed in the case:
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* services.configs.get('server.ssl.test') === true
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*
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* The 'value' attribute is optional. If none is provided, the request
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* can proceed if the config value is truthy.
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*/
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class Config extends Middleware {
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static get services() {
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return [...super.services, 'configs', 'output']
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}
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/*
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* Run the middleware test.
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*/
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test(req, res, next, args = {}){
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if ( !args.key ) return res.error(500)
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const config = this.configs.get(args.key)
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if ( !args.value && !config ) {
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if ( !config && typeof config === 'undefined' )
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this.output.warn(`util:Config middleware check failed because it tried to access a config that doesn't exist. (${key})`)
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return res.error(404)
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}
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else if ( args.value && args.value !== config ) return res.error(404)
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else return next()
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}
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}
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module.exports = Config
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