additional fixes:

- redirect: if page url is /path/ -> /path, don't add as extra seed
- proxy: don't use global dispatcher, pass dispatcher explicitly when using proxy

package.json

@@ -1,6 +1,6 @@
 {
   "name": "browsertrix-crawler",
-  "version": "1.5.0-beta.2",
+  "version": "1.5.0-beta.3",
   "main": "browsertrix-crawler",
   "type": "module",
   "repository": "https://github.com/webrecorder/browsertrix-crawler",

src/crawler.ts

@@ -1498,6 +1498,7 @@ self.__bx_behaviors.selectMainBehavior();
       logger.info("crawl already finished, running post-crawl tasks", {
         state: initState,
       });
+      this.finalExit = true;
       await this.postCrawl();
       return;
     } else if (await this.crawlState.isCrawlStopped()) {
@@ -1945,6 +1946,7 @@ self.__bx_behaviors.selectMainBehavior();
       depth === 0 &&
       !isChromeError &&
       respUrl !== url.split("#")[0] &&
+      respUrl + "/" !== url &&
       !downloadResponse
     ) {
       data.seedId = await this.crawlState.addExtraSeed(

src/util/argParser.ts

@@ -700,6 +700,9 @@ class ArgParser {
 
     // background behaviors to apply
     const behaviorOpts: { [key: string]: string | boolean } = {};
+    if (argv.blockAds) {
+      argv.behaviors.push("autoclick");
+    }
     if (argv.behaviors.length > 0) {
       argv.behaviors.forEach((x: string) => {
         if (BEHAVIOR_TYPES.includes(x)) {

src/util/blockrules.ts

@@ -5,6 +5,7 @@ import { HTTPRequest, Page } from "puppeteer-core";
 import { Browser } from "./browser.js";
 
 import { fetch } from "undici";
+import { getProxyDispatcher } from "./proxy.js";
 
 const RULE_TYPES = ["block", "allowOnly"];
 
@@ -271,7 +272,7 @@ export class BlockRules {
     logDetails: Record<string, any>,
   ) {
     try {
-      const res = await fetch(reqUrl);
+      const res = await fetch(reqUrl, { dispatcher: getProxyDispatcher() });
       const text = await res.text();
 
       return !!text.match(frameTextMatch);
@@ -302,6 +303,7 @@ export class BlockRules {
       method: "PUT",
       headers: { "Content-Type": "text/html" },
       body,
+      dispatcher: getProxyDispatcher(),
     });
   }
 }

src/util/file_reader.ts

@@ -6,6 +6,7 @@ import util from "util";
 import { exec as execCallback } from "child_process";
 
 import { logger } from "./logger.js";
+import { getProxyDispatcher } from "./proxy.js";
 
 const exec = util.promisify(execCallback);
 
@@ -85,7 +86,7 @@ async function collectOnlineBehavior(url: string): Promise<FileSources> {
   const behaviorFilepath = `/app/behaviors/${filename}`;
 
   try {
-    const res = await fetch(url);
+    const res = await fetch(url, { dispatcher: getProxyDispatcher() });
     const fileContents = await res.text();
     await fsp.writeFile(behaviorFilepath, fileContents);
     logger.info(

src/util/originoverride.ts

@@ -3,6 +3,7 @@ import { formatErr, logger } from "./logger.js";
 import { Browser } from "./browser.js";
 
 import { fetch } from "undici";
+import { getProxyDispatcher } from "./proxy.js";
 
 export class OriginOverride {
   originOverride: { origUrl: URL; destUrl: URL }[];
@@ -45,7 +46,10 @@ export class OriginOverride {
           headers.set("origin", orig.origin);
         }
 
-        const resp = await fetch(newUrl, { headers });
+        const resp = await fetch(newUrl, {
+          headers,
+          dispatcher: getProxyDispatcher(),
+        });
 
         const body = Buffer.from(await resp.arrayBuffer());
         const respHeaders = Object.fromEntries(resp.headers);

src/util/proxy.ts

@@ -1,5 +1,5 @@
 import net from "net";
-import { Agent, Dispatcher, ProxyAgent, setGlobalDispatcher } from "undici";
+import { Agent, Dispatcher, ProxyAgent } from "undici";
 
 import child_process from "child_process";
 
@@ -13,6 +13,8 @@ const SSH_PROXY_LOCAL_PORT = 9722;
 
 const SSH_WAIT_TIMEOUT = 30000;
 
+let proxyDispatcher: Dispatcher | undefined = undefined;
+
 export function getEnvProxyUrl() {
   if (process.env.PROXY_SERVER) {
     return process.env.PROXY_SERVER;
@@ -46,10 +48,14 @@ export async function initProxy(
 
   // set global fetch() dispatcher (with proxy, if any)
   const dispatcher = createDispatcher(proxy, agentOpts);
-  setGlobalDispatcher(dispatcher);
+  proxyDispatcher = dispatcher;
   return proxy;
 }
 
+export function getProxyDispatcher() {
+  return proxyDispatcher;
+}
+
 export function createDispatcher(
   proxyUrl: string,
   opts: Agent.Options,

src/util/recorder.ts

@@ -8,7 +8,7 @@ import {
   isRedirectStatus,
 } from "./reqresp.js";
 
-import { fetch, getGlobalDispatcher, Response } from "undici";
+import { fetch, Response } from "undici";
 
 import {
   getCustomRewriter,
@@ -23,6 +23,7 @@ import { WARCWriter } from "./warcwriter.js";
 import { RedisCrawlState, WorkerId } from "./state.js";
 import { CDPSession, Protocol } from "puppeteer-core";
 import { Crawler } from "../crawler.js";
+import { getProxyDispatcher } from "./proxy.js";
 
 const MAX_BROWSER_DEFAULT_FETCH_SIZE = 5_000_000;
 const MAX_TEXT_REWRITE_SIZE = 25_000_000;
@@ -1588,14 +1589,18 @@ class AsyncFetcher {
 
     const headers = reqresp.getRequestHeadersDict();
 
-    const dispatcher = getGlobalDispatcher().compose((dispatch) => {
-      return (opts, handler) => {
-        if (opts.headers) {
-          reqresp.requestHeaders = opts.headers as Record<string, string>;
-        }
-        return dispatch(opts, handler);
-      };
-    });
+    let dispatcher = getProxyDispatcher();
+
+    if (dispatcher) {
+      dispatcher = dispatcher.compose((dispatch) => {
+        return (opts, handler) => {
+          if (opts.headers) {
+            reqresp.requestHeaders = opts.headers as Record<string, string>;
+          }
+          return dispatch(opts, handler);
+        };
+      });
+    }
 
     const resp = await fetch(url!, {
       method,

src/util/sitemapper.ts

@@ -10,6 +10,7 @@ import { DETECT_SITEMAP } from "./constants.js";
 import { sleep } from "./timing.js";
 
 import { fetch, Response } from "undici";
+import { getProxyDispatcher } from "./proxy.js";
 
 const SITEMAP_CONCURRENCY = 5;
 
@@ -65,7 +66,10 @@ export class SitemapReader extends EventEmitter {
 
   async _fetchWithRetry(url: string, message: string) {
     while (true) {
-      const resp = await fetch(url, { headers: this.headers });
+      const resp = await fetch(url, {
+        headers: this.headers,
+        dispatcher: getProxyDispatcher(),
+      });
 
       if (resp.ok) {
         return resp;