Handling null/undefined platform information in Browser

packages/core/src/internal/bolt-agent/browser/bolt-agent.ts

@@ -21,7 +21,7 @@
 import { BoltAgent } from "../../../types";
 
 interface SystemInfo {
-  appVersion: string
+  userAgent?: string
 }
 
 /**
@@ -34,18 +34,23 @@ interface SystemInfo {
 export function fromVersion (
   version: string, 
   getSystemInfo: () => SystemInfo = () => ({ 
-    // @ts-ignore: browser code so must be skipped by ts
-    get appVersion(): window.navigator.appVersion 
+    get userAgent()  {
+      // @ts-ignore: browser code so must be skipped by ts
+      return window.navigator.userAgent
+    } 
   })
 ): BoltAgent {
   const systemInfo = getSystemInfo()
 
-  //APP_VERSION looks like 5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36
-  const OS = systemInfo.appVersion.split("(")[1].split(")")[0];
+  //USER_AGENT looks like 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
+
+  const platform = systemInfo.userAgent != null ? systemInfo.userAgent.split("(")[1].split(")")[0] : undefined
+  const languageDetails = systemInfo.userAgent || undefined
 
   return {
     product: `neo4j-javascript/${version}`,
-    platform: OS
+    platform,
+    languageDetails
   }
 }
 /* eslint-enable */

packages/core/test/internal/bolt-agent/browser/bolt-agent.test.ts

@@ -22,17 +22,48 @@ describe('#unit boltAgent', () => {
   // This test is very fragile but the exact look of this string should not change without PM approval
   it('should return the correct bolt agent for specified version', () => {
     const version = '5.3'
+    const userAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
     const getSystemInfo = (): any => {
       return {
-        appVersion: '5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36'
+        userAgent
       }
     }
 
     const boltAgent = fromVersion(version, getSystemInfo)
 
     expect(boltAgent).toEqual({
       product: 'neo4j-javascript/5.3',
-      platform: 'Macintosh; Intel Mac OS X 10_15_7'
+      platform: 'Macintosh; Intel Mac OS X 10_15_7',
+      languageDetails: userAgent
+    })
+  })
+
+  it('should handle null userAgent', () => {
+    const version = '5.3'
+    const getSystemInfo = (): any => {
+      return {
+        userAgent: null
+      }
+    }
+
+    const boltAgent = fromVersion(version, getSystemInfo)
+
+    expect(boltAgent).toEqual({
+      product: 'neo4j-javascript/5.3'
+    })
+  })
+
+  it('should handle undefined userAgent', () => {
+    const version = '5.3'
+    const getSystemInfo = (): any => {
+      return {
+      }
+    }
+
+    const boltAgent = fromVersion(version, getSystemInfo)
+
+    expect(boltAgent).toEqual({
+      product: 'neo4j-javascript/5.3'
     })
   })
 })

packages/neo4j-driver-deno/lib/core/internal/bolt-agent/browser/bolt-agent.ts

@@ -21,7 +21,7 @@
 import { BoltAgent } from "../../../types";
 
 interface SystemInfo {
-  appVersion: string
+  userAgent?: string
 }
 
 /**
@@ -34,18 +34,23 @@ interface SystemInfo {
 export function fromVersion (
   version: string, 
   getSystemInfo: () => SystemInfo = () => ({ 
-    // @ts-ignore: browser code so must be skipped by ts
-    get appVersion(): window.navigator.appVersion 
+    get userAgent()  {
+      // @ts-ignore: browser code so must be skipped by ts
+      return window.navigator.userAgent
+    } 
   })
 ): BoltAgent {
   const systemInfo = getSystemInfo()
 
-  //APP_VERSION looks like 5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36
-  const OS = systemInfo.appVersion.split("(")[1].split(")")[0];
+  //USER_AGENT looks like 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
+
+  const platform = systemInfo.userAgent != null ? systemInfo.userAgent.split("(")[1].split(")")[0] : undefined
+  const languageDetails = systemInfo.userAgent || undefined
 
   return {
     product: `neo4j-javascript/${version}`,
-    platform: OS
+    platform,
+    languageDetails
   }
 }
 /* eslint-enable */