Add:User listening sessions page, Update:Listening sessions to save media times and device info

server/objects/DeviceInfo.js

@@ -0,0 +1,74 @@
+class DeviceInfo {
+  constructor(deviceInfo = null) {
+    this.ipAddress = null
+
+    // From User Agent (see: https://www.npmjs.com/package/ua-parser-js)
+    this.browserName = null
+    this.browserVersion = null
+    this.osName = null
+    this.osVersion = null
+    this.deviceType = null
+
+    // From client
+    this.clientVersion = null
+    this.manufacturer = null
+    this.model = null
+    this.sdkVersion = null // Android Only
+
+    this.serverVersion = null
+
+    if (deviceInfo) {
+      this.construct(deviceInfo)
+    }
+  }
+
+  construct(deviceInfo) {
+    for (const key in deviceInfo) {
+      if (deviceInfo[key] !== undefined && this[key] !== undefined) {
+        this[key] = deviceInfo[key]
+      }
+    }
+  }
+
+  toJSON() {
+    const obj = {
+      ipAddress: this.ipAddress,
+      browserName: this.browserName,
+      browserVersion: this.browserVersion,
+      osName: this.osName,
+      osVersion: this.osVersion,
+      deviceType: this.deviceType,
+      clientVersion: this.clientVersion,
+      manufacturer: this.manufacturer,
+      model: this.model,
+      sdkVersion: this.sdkVersion,
+      serverVersion: this.serverVersion
+    }
+    for (const key in obj) {
+      if (obj[key] === null || obj[key] === undefined) {
+        delete obj[key]
+      }
+    }
+    return obj
+  }
+
+  setData(ip, ua, clientDeviceInfo, serverVersion) {
+    this.ipAddress = ip || null
+
+    const uaObj = ua || {}
+    this.browserName = uaObj.browser.name || null
+    this.browserVersion = uaObj.browser.version || null
+    this.osName = uaObj.os.name || null
+    this.osVersion = uaObj.os.version || null
+    this.deviceType = uaObj.device.type || null
+
+    var cdi = clientDeviceInfo || {}
+    this.clientVersion = cdi.clientVersion || null
+    this.manufacturer = cdi.manufacturer || null
+    this.model = cdi.model || null
+    this.sdkVersion = cdi.sdkVersion || null
+
+    this.serverVersion = serverVersion || null
+  }
+}
+module.exports = DeviceInfo