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null\n : await request.text(),\n } as SerializedRequest)\n\n this.logger.info(\n 'sent serialized request to the child:',\n serializedRequest\n )\n process.send?.(`request:${serializedRequest}`)\n\n const responsePromise = new Promise<void>((resolve) => {\n handleParentMessage = (message) => {\n if (typeof message !== 'string') {\n return resolve()\n }\n\n if (message.startsWith(`response:${requestId}`)) {\n const [, serializedResponse] =\n message.match(/^response:.+?:(.+)$/) || []\n\n if (!serializedResponse) {\n return resolve()\n }\n\n const responseInit = JSON.parse(\n serializedResponse\n ) as SerializedResponse\n\n const mockedResponse = new Response(responseInit.body, {\n status: responseInit.status,\n statusText: responseInit.statusText,\n headers: responseInit.headers,\n })\n\n request.respondWith(mockedResponse)\n return resolve()\n }\n }\n })\n\n // Listen for the mocked response message from the parent.\n this.logger.info(\n 'add \"message\" listener to the parent process',\n handleParentMessage\n )\n process.addListener('message', handleParentMessage)\n\n return responsePromise\n })\n\n this.subscriptions.push(() => {\n process.removeListener('message', handleParentMessage)\n })\n }\n}\n\nexport function requestReviver(key: string, value: any) {\n switch (key) {\n case 'url':\n return new URL(value)\n\n case 'headers':\n return new Headers(value)\n\n default:\n return value\n }\n}\n\nexport interface RemoveResolverOptions {\n process: ChildProcess\n}\n\nexport class RemoteHttpResolver extends Interceptor<HttpRequestEventMap> {\n static symbol = Symbol('remote-resolver')\n private process: ChildProcess\n\n constructor(options: RemoveResolverOptions) {\n super(RemoteHttpResolver.symbol)\n this.process = options.process\n }\n\n protected setup() {\n const logger = this.logger.extend('setup')\n\n const handleChildMessage: NodeJS.MessageListener = async (message) => {\n logger.info('received message from child!', message)\n\n if (typeof message !== 'string' || !message.startsWith('request:')) {\n logger.info('unknown message, ignoring...')\n return\n }\n\n const [, serializedRequest] = message.match(/^request:(.+)$/) || []\n if (!serializedRequest) {\n return\n }\n\n const requestJson = JSON.parse(\n serializedRequest,\n requestReviver\n ) as RevivedRequest\n logger.info('parsed intercepted request', requestJson)\n\n const capturedRequest = new Request(requestJson.url, {\n method: requestJson.method,\n headers: new Headers(requestJson.headers),\n credentials: requestJson.credentials,\n body: requestJson.body,\n })\n\n const { interactiveRequest, requestController } =\n toInteractiveRequest(capturedRequest)\n\n this.emitter.once('request', () => {\n if (requestController.responsePromise.state === 'pending') {\n requestController.respondWith(undefined)\n }\n })\n\n await emitAsync(this.emitter, 'request', {\n request: interactiveRequest,\n requestId: requestJson.id,\n })\n\n const mockedResponse = await requestController.responsePromise\n\n if (!mockedResponse) {\n return\n }\n\n logger.info('event.respondWith called with:', mockedResponse)\n const responseClone = mockedResponse.clone()\n const responseText = await mockedResponse.text()\n\n // Send the mocked response to the child process.\n const serializedResponse = JSON.stringify({\n status: mockedResponse.status,\n statusText: mockedResponse.statusText,\n headers: Array.from(mockedResponse.headers.entries()),\n body: responseText,\n } as SerializedResponse)\n\n this.process.send(\n `response:${requestJson.id}:${serializedResponse}`,\n (error) => {\n if (error) {\n return\n }\n\n // Emit an optimistic \"response\" event at this point,\n // not to rely on the back-and-forth signaling for the sake of the event.\n this.emitter.emit('response', {\n response: responseClone,\n isMockedResponse: true,\n request: capturedRequest,\n requestId: requestJson.id,\n })\n }\n )\n\n logger.info(\n 'sent serialized mocked response to the parent:',\n serializedResponse\n )\n }\n\n this.subscriptions.push(() => {\n this.process.removeListener('message', handleChildMessage)\n logger.info('removed the \"message\" listener from the child process!')\n })\n\n logger.info('adding a \"message\" listener to the child process')\n this.process.addListener('message', handleChildMessage)\n\n this.process.once('error', () => this.dispose())\n this.process.once('exit', () => this.dispose())\n }\n}\n"]} |