ref(node): Move request-data-extraction functions to@sentry/utils (#5257)

(See #5190 for a detailed description of the motivation for and main substance of this change. TL;DR, isomorphic frameworks like Nextjs need this code to live in a neutral location (rather than in the node package) so it can be used in a browser setting as well.)

This is a second take on #5190, which had to be reverted because it relied on a peer dependency (`cookie`) which browser-only apps wouldn't have installed. Even if those code didn't _use_ `cookie`, they still failed to compile because without `cookie` installed, `@sentry/utils` didn't typecheck correctly.

This fixes that problem by using `cookie` (and `url`, for node 8 compatibility) only as injected dependencies, not as direct ones. It also creates node-specific versions of the relevant functions (`parseRequest`, now renamed `addRequestDataToEvent`, and `extractRequestData`) which do the injection automatically. If the dependencies aren't passed (as would be the case in a browser setting, or when using the functions directly from `@sentry/utils`), the code about cookies no-ops, and the code about URLs uses `URL`, which should be defined in all modern browsers and Node 10 and above.

Other changes from the original PR:

- Now only the backwards-compatibility-preserving wrappers of the legacy code live in `handlers.ts`, while the legacy code itself lives in its own file. This both makes it easier to delete in the future and ensures that treeshaking algorithms which only work file-by-file (rather than function-by-function) are able to exclude that code. (Though it's being kept until v8 because it's part of the node package's public API, it's no longer used anywhere in the SDK.)
- Using DI changed the options interface for both of the functions in question, which in turn required a bit more gymnastics in terms of preserving and test backwards compatibility, specifically in the serverless package and the backwards-compatibility tests. This will make it a little harder to delete the old stuff when it comes time, but there are TODOs which hopefully will make it clear enough what needs to happen.
- There's a new `CrossPlatformRequest` type for use in place of `ExpressRequest`. A few helper functions have also been renamed to make them less Express-centric.

Author: lobsterkatie

packages/nextjs/src/utils/instrumentServer.ts

@@ -1,10 +1,10 @@
 /* eslint-disable max-lines */
 import {
+  addRequestDataToEvent,
   captureException,
   configureScope,
   deepReadDirSync,
   getCurrentHub,
-  Handlers,
   startTransaction,
 } from '@sentry/node';
 import { extractTraceparentData, getActiveTransaction, hasTracingEnabled } from '@sentry/tracing';
@@ -22,8 +22,6 @@ import { default as createNextServer } from 'next';
 import * as querystring from 'querystring';
 import * as url from 'url';
 
-const { parseRequest } = Handlers;
-
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 type PlainObject<T = any> = { [key: string]: T };
 
@@ -246,7 +244,7 @@ function makeWrappedReqHandler(origReqHandler: ReqHandler): WrappedReqHandler {
       const currentScope = getCurrentHub().getScope();
 
       if (currentScope) {
-        currentScope.addEventProcessor(event => parseRequest(event, nextReq));
+        currentScope.addEventProcessor(event => addRequestDataToEvent(event, nextReq));
 
         // We only want to record page and API requests
         if (hasTracingEnabled() && shouldTraceRequest(nextReq.url, publicDirFiles)) {

packages/nextjs/src/utils/withSentry.ts

@@ -1,4 +1,4 @@
-import { captureException, flush, getCurrentHub, Handlers, startTransaction } from '@sentry/node';
+import { addRequestDataToEvent, captureException, flush, getCurrentHub, startTransaction } from '@sentry/node';
 import { extractTraceparentData, hasTracingEnabled } from '@sentry/tracing';
 import { Transaction } from '@sentry/types';
 import {
@@ -12,8 +12,6 @@ import {
 import * as domain from 'domain';
 import { NextApiHandler, NextApiRequest, NextApiResponse } from 'next';
 
-const { parseRequest } = Handlers;
-
 // This is the same as the `NextApiHandler` type, except instead of having a return type of `void | Promise<void>`, it's
 // only `Promise<void>`, because wrapped handlers are always async
 export type WrappedNextApiHandler = (req: NextApiRequest, res: NextApiResponse) => Promise<void>;
@@ -43,7 +41,7 @@ export const withSentry = (origHandler: NextApiHandler): WrappedNextApiHandler =
       const currentScope = getCurrentHub().getScope();
 
       if (currentScope) {
-        currentScope.addEventProcessor(event => parseRequest(event, req));
+        currentScope.addEventProcessor(event => addRequestDataToEvent(event, req));
 
         if (hasTracingEnabled()) {
           // If there is a trace header set, extract the data from it (parentSpanId, traceId, and sampling decision)

packages/node/src/client.ts

@@ -2,6 +2,7 @@ import { BaseClient, Scope, SDK_VERSION } from '@sentry/core';
 import { SessionFlusher } from '@sentry/hub';
 import { Event, EventHint, Severity, SeverityLevel } from '@sentry/types';
 import { logger, resolvedSyncPromise } from '@sentry/utils';
+import * as os from 'os';
 import { TextEncoder } from 'util';
 
 import { eventFromMessage, eventFromUnknownInput } from './eventbuilder';
@@ -139,9 +140,15 @@ export class NodeClient extends BaseClient<NodeClientOptions> {
    */
   protected _prepareEvent(event: Event, hint: EventHint, scope?: Scope): PromiseLike<Event | null> {
     event.platform = event.platform || 'node';
-    if (this.getOptions().serverName) {
-      event.server_name = this.getOptions().serverName;
-    }
+    event.contexts = {
+      ...event.contexts,
+      runtime: event.contexts?.runtime || {
+        name: 'node',
+        version: global.process.version,
+      },
+    };
+    event.server_name =
+      event.server_name || this.getOptions().serverName || global.process.env.SENTRY_NAME || os.hostname();
     return super._prepareEvent(event, hint, scope);
   }