Initial commit

express/models/helpers/index.js

@@ -0,0 +1,73 @@
+const xss = require('xss')
+const cache = require('../cache')
+const Portal = require('../portal')
+
+const INSTANCE_SETTING_NAMESPACE = 'instance-setting'
+const INSTANCE_SETTING_CACHE_EXPIRE_TIME = 60 * 60 // 1 hour.
+const SLOVENIAN_LANGUAGE_ID_CACHE_EXPIRE_TIME = 60 * 60 // 1 hour.
+
+exports.intoDbArray = (inputData, mode) => {
+  if (Array.isArray(inputData)) {
+    return inputData
+  } else if (inputData === undefined || inputData === '') {
+    if (mode === 'always') return []
+    if (mode === 'undefined') return undefined
+    else return null
+    // return mode === 'always' ? [] : null
+  }
+  return [inputData]
+}
+
+exports.removeHtmlTags = text => {
+  return tagFilter.process(text)
+}
+
+// Returns setting value by its name from table instance_settings.
+exports.getInstanceSetting = async settingName => {
+  const settingCacheName = `${INSTANCE_SETTING_NAMESPACE}:${settingName}`
+  let settingValue = await cache.get(settingCacheName)
+
+  if (!settingValue) {
+    settingValue = await Portal.getInstanceSettingValue(settingName)
+    await cache.set(
+      settingCacheName,
+      settingValue,
+      'EX',
+      INSTANCE_SETTING_CACHE_EXPIRE_TIME
+    )
+  }
+
+  return settingValue
+}
+
+// Deletes cached instance settings.
+exports.clearCachedInstanceSettings = async () => {
+  const settingNames = await Portal.fetchAllInstanceSettingNames()
+  const settingCacheNames = settingNames.map(
+    settingName => `${INSTANCE_SETTING_NAMESPACE}:${settingName}`
+  )
+  await cache.unlink(...settingCacheNames)
+}
+
+// Returns slovenian language id and keeps it cached.
+exports.getSlovenianLanguageId = async () => {
+  const settingCacheName = 'slovenian-language-id'
+  let id = await cache.get(settingCacheName)
+
+  if (!id) {
+    id = (await Portal.getSlovenianLanguageId()).toString()
+    await cache.set(
+      settingCacheName,
+      id,
+      'EX',
+      SLOVENIAN_LANGUAGE_ID_CACHE_EXPIRE_TIME
+    )
+  }
+
+  return id
+}
+
+const tagFilter = new xss.FilterXSS({
+  whiteList: {},
+  stripIgnoreTag: true
+})