Add a decoder and new query param for playwright proxies. (#1433)

src/chrome-helper.ts

@@ -397,6 +397,7 @@ export const convertUrlParamsToLaunchOpts = (
     trackingId,
     keepalive: keepaliveQuery,
     dumpio: dumpioQuery,
+    playwrightProxy: playwrightProxyQuery,
   } = urlParts.query;
 
   const playwright = req.parsed.pathname === PLAYWRIGHT_ROUTE;
@@ -413,6 +414,20 @@ export const convertUrlParamsToLaunchOpts = (
     ? dumpioQuery !== 'false'
     : DEFAULT_DUMPIO;
 
+  const playwrightProxy = (() => {
+    let res = undefined;
+
+    if (!_.isUndefined(playwrightProxyQuery)) {
+      try {
+        res = JSON.parse(decodeURIComponent(playwrightProxyQuery as string));
+      } catch(err) {
+        debug(`Error parsing playwright-proxy param to JSON: ${playwrightProxyQuery} isn't properly URL-encoded or JSON.stringified.`)
+      }
+    }
+
+    return res;
+  })();
+
   const parsedKeepalive = _.parseInt(keepaliveQuery as string);
   const keepalive = _.isNaN(parsedKeepalive) ? undefined : parsedKeepalive;
   const parsedIgnoreDefaultArgs = parseIgnoreDefaultArgs(urlParts.query);
@@ -429,6 +444,7 @@ export const convertUrlParamsToLaunchOpts = (
     keepalive,
     pauseOnConnect: !_.isUndefined(pause),
     playwright,
+    playwrightProxy,
     slowMo: parseInt(slowMo as string, 10) || undefined,
     trackingId: _.isArray(trackingId) ? trackingId[0] : trackingId,
     userDataDir: (userDataDir as string) || DEFAULT_USER_DATA_DIR,
@@ -509,6 +525,7 @@ export const launchChrome = async (
     ? await chromium.launchServer({
         ...launchArgs,
         headless: true,
+        proxy: launchArgs.playwrightProxy,
       })
     : launchArgs.stealth
     ? await pptrExtra.launch(launchArgs)

src/types.d.ts

@@ -1,7 +1,7 @@
 import { ChildProcess } from 'child_process';
 import { EventEmitter } from 'events';
 import { Response } from 'express';
-import { BrowserServer } from 'playwright-core';
+import { BrowserServer, LaunchOptions } from 'playwright-core';
 import { IncomingMessage, ServerResponse } from 'http';
 import net from 'net';
 import puppeteer from 'puppeteer';
@@ -55,6 +55,7 @@ export interface ILaunchOptions extends puppeteer.LaunchOptions {
   blockAds: boolean;
   trackingId?: string;
   keepalive?: number;
+  playwrightProxy?: LaunchOptions['proxy'];
   playwright: boolean;
   stealth: boolean;
 }