Fix linting errors in handlers after rebase

Author: rubensworks

lib/handlers/allow.js

@@ -1,7 +1,11 @@
 module.exports = allow
 
+const $rdf = require('rdflib')
 const ACL = require('../acl-checker')
 const debug = require('../debug.js').ACL
+const fs = require('fs')
+const { promisify } = require('util')
+const HTTPError = require('../http-error')
 
 function allow (mode) {
   return async function allowHandler (req, res, next) {
@@ -35,9 +39,9 @@ function allow (mode) {
 
     // Obtain and store the ACL of the requested resource
     req.acl = new ACL(rootUrl + reqPath, {
-      origin: req.get('origin'),
+      agentOrigin: req.get('origin'),
       // host: req.get('host'),
-      fetch: fetchFromLdp(ldp.resourceMapper, ldp),
+      fetch: fetchFromLdp(ldp.resourceMapper),
       fetchGraph: (uri, options) => {
         // first try loading from local fs
         return ldp.getGraph(uri, options.contentType)
@@ -69,14 +73,17 @@ function allow (mode) {
  *   - `callback(null, graph)` with the parsed RDF graph of the fetched resource
  * @return {Function} Returns a `fetch(uri, callback)` handler
  */
-function fetchFromLdp (mapper, ldp) {
+function fetchFromLdp (mapper) {
   return async function fetch (url, graph = $rdf.graph()) {
     // Convert the URL into a filename
-    const { path, contentType } = await mapper.mapUrlToFile({ url })
+    let path, contentType
+    try {
+      ({ path, contentType } = await mapper.mapUrlToFile({ url }))
+    } catch (err) {
+      throw new HTTPError(404, err)
+    }
     // Read the file from disk
-    const body = await new Promise((resolve, reject) => {
-      ldp.readFile(path, (e, c) => e ? reject(e) : resolve(c))
-    })
+    const body = await promisify(fs.readFile)(path, {'encoding': 'utf8'})
     // Parse the file as Turtle
     $rdf.parse(body, graph, url, contentType)
     return graph

lib/handlers/patch.js

@@ -110,7 +110,6 @@ function readGraph (resource) {
   })
 }
 
-
 // Verifies whether the user is allowed to perform the patch on the target
 async function checkPermission (request, patchObject) {
   // If no ACL object was passed down, assume permissions are okay.