feat: integrate post-request script to the engine

packages/insomnia-sdk/src/objects/insomnia.ts

@@ -11,6 +11,7 @@ import { unsupportedError } from './properties';
 import { Request as ScriptRequest, RequestOptions, toScriptRequestBody } from './request';
 import { RequestInfo } from './request-info';
 import { Response as ScriptResponse } from './response';
+import { toScriptResponse } from './response';
 import { sendRequest } from './send-request';
 import { test } from './test';
 import { toUrlObject } from './urls';
@@ -23,6 +24,7 @@ export class InsomniaObject {
     public request: ScriptRequest;
     public cookies: CookieObject;
     public info: RequestInfo;
+    public response?: ScriptResponse;
 
     private clientCertificates: ClientCertificate[];
     private _expect = expect;
@@ -47,6 +49,7 @@ export class InsomniaObject {
             clientCertificates: ClientCertificate[];
             cookies: CookieObject;
             requestInfo: RequestInfo;
+            response?: ScriptResponse;
         },
         log: (...msgs: any[]) => void,
     ) {
@@ -57,6 +60,7 @@ export class InsomniaObject {
         this._iterationData = rawObj.iterationData;
         this.variables = rawObj.variables;
         this.cookies = rawObj.cookies;
+        this.response = rawObj.response;
 
         this.info = rawObj.requestInfo;
         this.request = rawObj.request;
@@ -108,11 +112,12 @@ export class InsomniaObject {
             clientCertificates: this.clientCertificates,
             cookieJar: this.cookies.jar().toInsomniaCookieJar(),
             info: this.info.toObject(),
+            response: this.response ? this.response.toObject() : undefined,
         };
     };
 }
 
-export function initInsomniaObject(
+export async function initInsomniaObject(
     rawObj: RequestContext,
     log: (...args: any[]) => void,
 ) {
@@ -206,6 +211,8 @@ export function initInsomniaObject(
     };
     const request = new ScriptRequest(reqOpt);
 
+    const response = rawObj.response ? await toScriptResponse(request, rawObj.response) : undefined;
+
     return new InsomniaObject(
         {
             globals,
@@ -218,6 +225,7 @@ export function initInsomniaObject(
             clientCertificates: rawObj.clientCertificates,
             cookies,
             requestInfo,
+            response,
         },
         log,
     );

packages/insomnia-sdk/src/objects/interfaces.ts

@@ -2,6 +2,7 @@ import { CookieJar as InsomniaCookieJar } from 'insomnia/src//models/cookie-jar'
 import { ClientCertificate } from 'insomnia/src/models/client-certificate';
 import type { Request } from 'insomnia/src/models/request';
 import { Settings } from 'insomnia/src/models/settings';
+import { sendCurlAndWriteTimeline } from 'insomnia/src/network/network';
 
 export interface RequestContext {
     request: Request;
@@ -17,4 +18,6 @@ export interface RequestContext {
     settings: Settings;
     clientCertificates: ClientCertificate[];
     cookieJar: InsomniaCookieJar;
+    // only for the post-request script
+    response?: Awaited<ReturnType<typeof sendCurlAndWriteTimeline>>;
 }

packages/insomnia-sdk/src/objects/response.ts

@@ -1,4 +1,6 @@
 import { RESPONSE_CODE_REASONS } from 'insomnia/src/common/constants';
+import { Compression, ResponseHeader } from 'insomnia/src/models/response';
+import { sendCurlAndWriteTimeline } from 'insomnia/src/network/network';
 
 import { Cookie, CookieOptions } from './cookies';
 import { CookieList } from './cookies';
@@ -183,3 +185,71 @@ export class Response extends Property {
         return this.body.toString();
     }
 }
+
+export async function toScriptResponse(
+    originalRequest: Request,
+    partialInsoResponse: Awaited<ReturnType<typeof sendCurlAndWriteTimeline>>,
+): Promise<Response | undefined> {
+    if (partialInsoResponse.error) {
+        // response basically doesn't contain anything
+        return undefined;
+    }
+
+    // TODO: improve the type from sendCurlAndWriteTimeline a bit
+    // so that typing in downstream logic could be improved
+    const partialResponse = partialInsoResponse as {
+        headers: ResponseHeader[];
+        bodyPath: string;
+        bodyCompression: Compression;
+        statusCode: number;
+        elapsedTime: number;
+        statusMessage: string;
+    };
+
+    const headers = partialResponse.headers.map(
+        insoHeader => ({
+            key: insoHeader.name,
+            value: insoHeader.value,
+        }),
+        {},
+    );
+
+    const insoCookieOptions = partialResponse.headers
+        .filter(
+            header => {
+                return header.name.toLowerCase() === 'set-cookie';
+            },
+            {},
+        ).map(
+            setCookieHeader => Cookie.parse(setCookieHeader.value)
+        );
+
+    // TODO: handle default path
+    let responseBody = '';
+    if (partialResponse.bodyPath) {
+        const readResponseResult = await window.bridge.readCurlResponse({
+            bodyPath: partialResponse.bodyPath,
+            bodyCompression: partialResponse.bodyCompression,
+        });
+
+        if (readResponseResult.error) {
+            throw Error(`Failed to read body: ${readResponseResult.error}`);
+        } else {
+            responseBody = readResponseResult.body;
+        }
+    }
+
+    const responseOption = {
+        code: partialResponse.statusCode,
+        // reason is not provided
+        header: headers,
+        cookie: insoCookieOptions,
+        body: responseBody,
+        // stream is duplicated with body
+        responseTime: partialResponse.elapsedTime,
+        status: partialResponse.statusMessage,
+        originalRequest,
+    };
+
+    return new Response(responseOption);
+};

packages/insomnia/src/hidden-window-preload.ts

@@ -34,7 +34,7 @@ export interface HiddenBrowserWindowToMainBridgeAPI {
   curlRequest: (options: any) => Promise<any>;
   readCurlResponse: (options: { bodyPath: string; bodyCompression: Compression }) => Promise<{ body: string; error: string }>;
   setBusy: (busy: boolean) => void;
-  writeFile: (logPath: string, logContent: string) => Promise<void>;
+  appendFile: (logPath: string, logContent: string) => Promise<void>;
   asyncTasksAllSettled: () => Promise<void>;
   resetAsyncTasks: () => void;
   stopMonitorAsyncTasks: () => void;
@@ -115,8 +115,8 @@ const bridge: HiddenBrowserWindowToMainBridgeAPI = {
   setBusy: busy => ipcRenderer.send('set-hidden-window-busy-status', busy),
   // TODO: following methods are for simulating current behavior of running async tasks
   // in the future, it should be better to keep standard way of handling async tasks to avoid confusion
-  writeFile: (logPath: string, logContent: string) => {
-    return fs.promises.writeFile(logPath, logContent);
+  appendFile: (logPath: string, logContent: string) => {
+    return fs.promises.appendFile(logPath, logContent);
   },
   Promise: OriginalPromise,
   asyncTasksAllSettled,

packages/insomnia/src/hidden-window.ts

@@ -34,7 +34,7 @@ const runPreRequestScript = async (
   console.log(script);
   const scriptConsole = new Console();
 
-  const executionContext = initInsomniaObject(context, scriptConsole.log);
+  const executionContext = await initInsomniaObject(context, scriptConsole.log);
 
   const evalInterceptor = (script: string) => {
     invariant(script && typeof script === 'string', 'eval is called with invalid or empty value');
@@ -83,7 +83,7 @@ const runPreRequestScript = async (
   const updatedCertificates = mergeClientCertificates(context.clientCertificates, mutatedContextObject.request);
   const updatedCookieJar = mergeCookieJar(context.cookieJar, mutatedContextObject.cookieJar);
 
-  await window.bridge.writeFile(context.timelinePath, scriptConsole.dumpLogs());
+  await window.bridge.appendFile(context.timelinePath, scriptConsole.dumpLogs());
 
   console.log('mutatedInsomniaObject', mutatedContextObject);
   console.log('context', context);

packages/insomnia/src/network/network.ts

@@ -74,13 +74,15 @@ export const fetchRequestData = async (requestId: string) => {
 };
 
 export const tryToExecutePreRequestScript = async (
+  isPreRequest: boolean,
   request: Request,
   environment: Environment,
   timelinePath: string,
   responseId: string,
   baseEnvironment: Environment,
   clientCertificates: ClientCertificate[],
   cookieJar: CookieJar,
+  response?: Awaited<ReturnType<typeof sendCurlAndWriteTimeline>>,
 ) => {
   if (!request.preRequestScript) {
     return {
@@ -101,7 +103,7 @@ export const tryToExecutePreRequestScript = async (
       }, timeout + 1000);
     });
     const preRequestPromise = cancellableRunPreRequestScript({
-      script: request.preRequestScript,
+      script: isPreRequest ? request.preRequestScript : request.postRequestScript,
       context: {
         request,
         timelinePath,
@@ -115,6 +117,7 @@ export const tryToExecutePreRequestScript = async (
         clientCertificates,
         settings,
         cookieJar,
+        response,
       },
     });
     const output = await Promise.race([timeoutPromise, preRequestPromise]) as {
@@ -152,7 +155,10 @@ export const tryToExecutePreRequestScript = async (
       cookieJar: output.cookieJar,
     };
   } catch (err) {
-    await fs.promises.appendFile(timelinePath, JSON.stringify({ value: err.message, name: 'Text', timestamp: Date.now() }) + '\n');
+    await fs.promises.appendFile(
+      timelinePath,
+      JSON.stringify({ value: err.message, name: 'Text', timestamp: Date.now() }) + '\n',
+    );
 
     const requestId = request._id;
     const responsePatch = {
@@ -282,6 +288,7 @@ export async function sendCurlAndWriteTimeline(
     ...patch,
   };
 }
+
 export const responseTransform = async (patch: ResponsePatch, environmentId: string | null, renderedRequest: RenderedRequest, context: Record<string, any>) => {
   const response: ResponsePatch = {
     ...patch,

packages/insomnia/src/ui/routes/request.tsx

@@ -14,6 +14,7 @@ import { ResponsePatch } from '../../main/network/libcurl-promise';
 import * as models from '../../models';
 import { BaseModel } from '../../models';
 import { CookieJar } from '../../models/cookie-jar';
+import { Environment } from '../../models/environment';
 import { GrpcRequest, isGrpcRequestId } from '../../models/grpc-request';
 import { GrpcRequestMeta } from '../../models/grpc-request-meta';
 import * as requestOperations from '../../models/helpers/request-operations';
@@ -381,6 +382,7 @@ export const sendAction: ActionFunction = async ({ request, params }) => {
   try {
     const { shouldPromptForPathAfterResponse, ignoreUndefinedEnvVariable } = await request.json() as SendActionParams;
     const mutatedContext = await tryToExecutePreRequestScript(
+      true,
       req,
       environment,
       timelinePath,
@@ -394,34 +396,7 @@ export const sendAction: ActionFunction = async ({ request, params }) => {
       // TODO: improve error message?
       return null;
     } else {
-      // persist updated cookieJar if needed
-      if (mutatedContext.cookieJar) {
-        await models.cookieJar.update(
-          mutatedContext.cookieJar,
-          { cookies: mutatedContext.cookieJar.cookies },
-        );
-      }
-      // when base environment is activated, `mutatedContext.environment` points to it
-      const isActiveEnvironmentBase = mutatedContext.environment?._id === baseEnvironment._id;
-      const hasEnvironmentAndIsNotBase = mutatedContext.environment && !isActiveEnvironmentBase;
-      if (hasEnvironmentAndIsNotBase) {
-        await models.environment.update(
-          environment,
-          {
-            data: mutatedContext.environment.data,
-            dataPropertyOrder: mutatedContext.environment.dataPropertyOrder,
-          }
-        );
-      }
-      if (mutatedContext.baseEnvironment) {
-        await models.environment.update(
-          baseEnvironment,
-          {
-            data: mutatedContext.baseEnvironment.data,
-            dataPropertyOrder: mutatedContext.baseEnvironment.dataPropertyOrder,
-          }
-        );
-      }
+      await savePatchesMadeByScript(mutatedContext, environment, baseEnvironment);
     }
 
     const renderedResult = await tryToInterpolateRequest(
@@ -461,12 +436,33 @@ export const sendAction: ActionFunction = async ({ request, params }) => {
     const responsePatch = await responseTransform(response, activeEnvironmentId, renderedRequest, renderedResult.context);
     const is2XXWithBodyPath = responsePatch.statusCode && responsePatch.statusCode >= 200 && responsePatch.statusCode < 300 && responsePatch.bodyPath;
     const shouldWriteToFile = shouldPromptForPathAfterResponse && is2XXWithBodyPath;
+
+    const postMutatedContext = await tryToExecutePreRequestScript(
+      false,
+      req,
+      environment,
+      timelinePath,
+      responseId,
+      baseEnvironment,
+      clientCertificates,
+      cookieJar,
+      response,
+    );
+    if (!postMutatedContext?.request) {
+      // exiy early if there was a problem with the pre-request script
+      // TODO: improve error message?
+      return null;
+    } else {
+      await savePatchesMadeByScript(postMutatedContext, environment, baseEnvironment);
+    }
+
     if (!shouldWriteToFile) {
       const response = await models.response.create(responsePatch, settings.maxHistoryResponses);
       await models.requestMeta.update(requestMeta, { activeResponseId: response._id });
       // setLoading(false);
       return null;
     }
+
     if (requestMeta.downloadPath) {
       const header = getContentDispositionHeader(responsePatch.headers || []);
       const name = header
@@ -500,6 +496,45 @@ export const sendAction: ActionFunction = async ({ request, params }) => {
   }
 };
 
+async function savePatchesMadeByScript(
+  mutatedContext: Awaited<ReturnType<typeof tryToExecutePreRequestScript>>,
+  environment: Environment,
+  baseEnvironment: Environment,
+) {
+  if (!mutatedContext) {
+    return;
+  }
+
+  // persist updated cookieJar if needed
+  if (mutatedContext.cookieJar) {
+    await models.cookieJar.update(
+      mutatedContext.cookieJar,
+      { cookies: mutatedContext.cookieJar.cookies },
+    );
+  }
+  // when base environment is activated, `mutatedContext.environment` points to it
+  const isActiveEnvironmentBase = mutatedContext.environment?._id === baseEnvironment._id;
+  const hasEnvironmentAndIsNotBase = mutatedContext.environment && !isActiveEnvironmentBase;
+  if (hasEnvironmentAndIsNotBase) {
+    await models.environment.update(
+      environment,
+      {
+        data: mutatedContext.environment.data,
+        dataPropertyOrder: mutatedContext.environment.dataPropertyOrder,
+      }
+    );
+  }
+  if (mutatedContext.baseEnvironment) {
+    await models.environment.update(
+      baseEnvironment,
+      {
+        data: mutatedContext.baseEnvironment.data,
+        dataPropertyOrder: mutatedContext.baseEnvironment.dataPropertyOrder,
+      }
+    );
+  }
+}
+
 export const createAndSendToMockbinAction: ActionFunction = async ({ request }) => {
   const patch = await request.json() as Partial<Request>;
   invariant(typeof patch.url === 'string', 'URL is required');