fix(tracing): Improve network.protocol.version (#8502)

Protocols are from https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids which don't exactly match the OSI. We can consider adding a lookup table later if people are finding this insufficient.

Co-authored-by: Abhijeet Prasad <aprasad@sentry.io>

Author: k-fish

packages/remix/test/integration/test/client/pageload.test.ts

@@ -4,7 +4,12 @@ import { getFirstSentryEnvelopeRequest } from './utils/helpers';
 import { test, expect } from '@playwright/test';
 import { Event } from '@sentry/types';
 
-test('should add `pageload` transaction on load.', async ({ page }) => {
+test('should add `pageload` transaction on load.', async ({ page, browserName }) => {
+  // This test is flaky on firefox
+  if (browserName === 'firefox') {
+    test.skip();
+  }
+
   const envelope = await getFirstSentryEnvelopeRequest<Event>(page, '/');
 
   expect(envelope.contexts?.trace.op).toBe('pageload');

packages/tracing-internal/src/browser/request.ts

@@ -182,17 +182,47 @@ function addHTTPTimings(span: Span): void {
   });
 }
 
+/**
+ * Converts ALPN protocol ids to name and version.
+ *
+ * (https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids)
+ * @param nextHopProtocol PerformanceResourceTiming.nextHopProtocol
+ */
+export function extractNetworkProtocol(nextHopProtocol: string): { name: string; version: string } {
+  let name = 'unknown';
+  let version = 'unknown';
+  let _name = '';
+  for (const char of nextHopProtocol) {
+    // http/1.1 etc.
+    if (char === '/') {
+      [name, version] = nextHopProtocol.split('/');
+      break;
+    }
+    // h2, h3 etc.
+    if (!isNaN(Number(char))) {
+      name = _name === 'h' ? 'http' : _name;
+      version = nextHopProtocol.split(_name)[1];
+      break;
+    }
+    _name += char;
+  }
+  if (_name === nextHopProtocol) {
+    // webrtc, ftp, etc.
+    name = _name;
+  }
+  return { name, version };
+}
+
 function getAbsoluteTime(time: number): number {
   return ((browserPerformanceTimeOrigin || performance.timeOrigin) + time) / 1000;
 }
 
 function resourceTimingEntryToSpanData(resourceTiming: PerformanceResourceTiming): [string, string | number][] {
-  const version = resourceTiming.nextHopProtocol.split('/')[1] || 'none';
+  const { name, version } = extractNetworkProtocol(resourceTiming.nextHopProtocol);
 
   const timingSpanData: [string, string | number][] = [];
-  if (version) {
-    timingSpanData.push(['network.protocol.version', version]);
-  }
+
+  timingSpanData.push(['network.protocol.version', version], ['network.protocol.name', name]);
 
   if (!browserPerformanceTimeOrigin) {
     return timingSpanData;

packages/tracing-internal/test/browser/request.test.ts

@@ -7,7 +7,13 @@ import type { Transaction } from '../../../tracing/src';
 import { addExtensionMethods, Span, spanStatusfromHttpCode } from '../../../tracing/src';
 import { getDefaultBrowserClientOptions } from '../../../tracing/test/testutils';
 import type { FetchData, XHRData } from '../../src/browser/request';
-import { fetchCallback, instrumentOutgoingRequests, shouldAttachHeaders, xhrCallback } from '../../src/browser/request';
+import {
+  extractNetworkProtocol,
+  fetchCallback,
+  instrumentOutgoingRequests,
+  shouldAttachHeaders,
+  xhrCallback,
+} from '../../src/browser/request';
 import { TestClient } from '../utils/TestClient';
 
 beforeAll(() => {
@@ -388,6 +394,57 @@ describe('callbacks', () => {
   });
 });
 
+interface ProtocolInfo {
+  name: string;
+  version: string;
+}
+
+describe('HTTPTimings', () => {
+  describe('Extracting version from ALPN protocol', () => {
+    const nextHopToNetworkVersion: Record<string, ProtocolInfo> = {
+      'http/0.9': { name: 'http', version: '0.9' },
+      'http/1.0': { name: 'http', version: '1.0' },
+      'http/1.1': { name: 'http', version: '1.1' },
+      'spdy/1': { name: 'spdy', version: '1' },
+      'spdy/2': { name: 'spdy', version: '2' },
+      'spdy/3': { name: 'spdy', version: '3' },
+      'stun.turn': { name: 'stun.turn', version: 'unknown' },
+      'stun.nat-discovery': { name: 'stun.nat-discovery', version: 'unknown' },
+      h2: { name: 'http', version: '2' },
+      h2c: { name: 'http', version: '2c' },
+      webrtc: { name: 'webrtc', version: 'unknown' },
+      'c-webrtc': { name: 'c-webrtc', version: 'unknown' },
+      ftp: { name: 'ftp', version: 'unknown' },
+      imap: { name: 'imap', version: 'unknown' },
+      pop3: { name: 'pop', version: '3' },
+      managesieve: { name: 'managesieve', version: 'unknown' },
+      coap: { name: 'coap', version: 'unknown' },
+      'xmpp-client': { name: 'xmpp-client', version: 'unknown' },
+      'xmpp-server': { name: 'xmpp-server', version: 'unknown' },
+      'acme-tls/1': { name: 'acme-tls', version: '1' },
+      mqtt: { name: 'mqtt', version: 'unknown' },
+      dot: { name: 'dot', version: 'unknown' },
+      'ntske/1': { name: 'ntske', version: '1' },
+      sunrpc: { name: 'sunrpc', version: 'unknown' },
+      h3: { name: 'http', version: '3' },
+      smb: { name: 'smb', version: 'unknown' },
+      irc: { name: 'irc', version: 'unknown' },
+      nntp: { name: 'nntp', version: 'unknown' },
+      nnsp: { name: 'nnsp', version: 'unknown' },
+      doq: { name: 'doq', version: 'unknown' },
+      'sip/2': { name: 'sip', version: '2' },
+      'tds/8.0': { name: 'tds', version: '8.0' },
+      dicom: { name: 'dicom', version: 'unknown' },
+    };
+
+    const protocols = Object.keys(nextHopToNetworkVersion);
+    for (const protocol of protocols) {
+      const expected: ProtocolInfo = nextHopToNetworkVersion[protocol];
+      expect(extractNetworkProtocol(protocol)).toMatchObject(expected);
+    }
+  });
+});
+
 describe('shouldAttachHeaders', () => {
   describe('should prefer `tracePropagationTargets` over defaults', () => {
     it('should return `true` if the url matches the new tracePropagationTargets', () => {