Reading from file works

Author: kjetilk

default-templates/new-account/settings/serverSide.ttl

@@ -1,3 +1,5 @@
+@prefix dct: <http://purl.org/dc/terms/>.
+@prefix pim: <http://www.w3.org/ns/pim/space#>.
 @prefix solid: <http://www.w3.org/ns/solid/terms#>.
 @prefix unit: <http://www.w3.invalid/ns#>.
 
@@ -6,6 +8,6 @@
 
   dct:description "Administrative settings for the server that are only readable to the user." .
 
-<{{webId}}>
+</>
     solid:storageQuota "25"^^unit:megabyte .
 

lib/utils.js

@@ -13,12 +13,14 @@ module.exports.debrack = debrack
 module.exports.stripLineEndings = stripLineEndings
 module.exports.fullUrlForReq = fullUrlForReq
 module.exports.routeResolvedFile = routeResolvedFile
+module.exports.getQuota = getQuota
 
 const fs = require('fs-extra')
 const path = require('path')
 const $rdf = require('rdflib')
 const from = require('from2')
 const url = require('url')
+var ns = require('solid-namespace')($rdf)
 
 /**
  * Returns a fully qualified URL from an Express.js Request object.
@@ -245,9 +247,27 @@ function routeResolvedFile (router, path, file, appendFileName = true) {
  * may store or Infinity if no limit
  */
 
-/* function getQuota (req) {
-  // const path = reqToPath(req)
-  var quota = 25
+function getQuota (root, serverUri) {
+  const filename = path.join(root, 'settings/serverSide.ttl')
+  const prefs = fs.readFileSync(filename, 'utf8')
+  var graph = $rdf.graph()
+  const storageUri = serverUri + '/'
+  $rdf.parse(prefs, graph, storageUri, 'text/turtle')
+  const lit = graph.each($rdf.sym(storageUri), ns.solid('storageQuota'), undefined)[0]
+  var quota = lit.value
+  const unitUri = 'http://www.w3.invalid/ns#'
+  // The following should be encoded in the ontology
+  switch (lit.datatype.value) {
+    case unitUri + 'kilobyte':
+      quota *= 1000
+      break
+    case unitUri + 'megabyte':
+      quota *= 1000000
+      break
+    case unitUri + 'gigabyte':
+      quota *= 1000000000
+      break
+  }
   return quota
 }
 

test/integration/quota-test.js

@@ -1,13 +1,17 @@
 var expect = require('chai').expect
-// var getQuota = require('../../lib/utils').getQuota
+var getQuota = require('../../lib/utils').getQuota
 const path = require('path')
 const read = require('../utils').read
-const host = 'localhost:3457'
-var domain = host.split(':')[0]
+const root = 'accounts-acl/config/templates/new-account/'
+// const $rdf = require('rdflib')
 
 describe('Quota', function () {
-  it('Check that the file is readable', function () {
-    var prefs = read(path.join('accounts/nicola.' + domain, 'settings/serverSide.ttl'))
-    expect(prefs).to.be.true()
+  var prefs = read(path.join(root, 'settings/serverSide.ttl'))
+  it('Check that the file is readable and has predicate', function () {
+    expect(prefs).to.be.a('string')
+    expect(prefs).to.match(/storageQuota/)
+  })
+  it('Get the quota', function () {
+    expect(getQuota(path.join('test/resources/', root), 'https://localhost')).to.equal(2000)
   })
 })

test/resources/accounts-acl/config/templates/new-account/settings/serverSide.ttl

@@ -0,0 +1,13 @@
+@prefix dct: <http://purl.org/dc/terms/>.
+@prefix pim: <http://www.w3.org/ns/pim/space#>.
+@prefix solid: <http://www.w3.org/ns/solid/terms#>.
+@prefix unit: <http://www.w3.invalid/ns#>.
+
+<>
+  a pim:ConfigurationFile;
+
+  dct:description "Administrative settings for the server that are only readable to the user." .
+
+</>
+    solid:storageQuota "2"^^unit:kilobyte .
+