Initial commit of framework

app/routing/middleware/util/Config.middleware.js

@@ -0,0 +1,43 @@
+const { Middleware } = require('libflitter')
+
+/*
+ * Config Middleware
+ * -------------------------------------------------------------
+ * Checks the specified configuration key (and optionally the value).
+ * If the configuration matches the required value, the request can
+ * proceed. Otherwise, a 404 will be returned.
+ *
+ * To use, add the call to your route's middleware:
+ *
+ * ['middleware::util:Config', {key: 'server.ssl.test', value: true}],
+ *
+ * In this case, the request would be allowed to proceed in the case:
+ *  services.configs.get('server.ssl.test') === true
+ *
+ * The 'value' attribute is optional. If none is provided, the request
+ * can proceed if the config value is truthy.
+ */
+class Config extends Middleware {
+    static get services() {
+        return [...super.services, 'configs', 'output']
+    }
+
+    /*
+     * Run the middleware test.
+     */
+    test(req, res, next, args = {}){
+        if ( !args.key ) return res.error(500)
+
+        const config = this.configs.get(args.key)
+
+        if ( !args.value && !config ) {
+            if ( !config && typeof config === 'undefined' )
+                this.output.warn(`util:Config middleware check failed because it tried to access a config that doesn't exist. (${key})`)
+            return res.error(404)
+        }
+        else if ( args.value && args.value !== config ) return res.error(404)
+        else return next()
+    }
+}
+
+module.exports = Config