The actor implements the legacy Apify Crawler product. It uses PhantomJS headless browser to recursively crawl websites and extract data from them using a piece of JavaScript code.
Home Page: https://apify.com/apify/legacy-phantomjs-crawler
![dependabot[bot] avatar](https://avatars.githubusercontent.com/in/29110?v=4 "dependabot[bot]")
The clean datasets created by the Legacy actor no longer only include the PageFunction results but include all request data.
Use Case:
See: https://api.apify.com/v2/datasets/wKr4JiZM3hvrR6fPc/items?format=json&clean=1
[{
"loadedUrl": "https://www.enjoylifenotfood.com/",
"requestedAt": "2020-01-07T12:48:26.821Z",
"loadingStartedAt": "2020-01-07T12:48:27.129Z",
"loadingFinishedAt": "2020-01-07T12:48:27.374Z",
"loadErrorCode": null,
"pageFunctionStartedAt": "2020-01-07T12:48:27.821Z",
"pageFunctionFinishedAt": "2020-01-07T12:48:27.824Z",
"type": "StartUrl",
"isMainFrame": true,
"willLoad": true,
"label": "START",
"referrerId": null,
"depth": 0,
"pageFunctionResult": [
{
"url": "https://www.enjoylifenotfood.com/",
"pageTitle": "Enjoy Life Not Food | web-enjoylifenotfood"
},
{
"url": "https://www.enjoylifenotfood.com/",
"pageTitle": "Enjoy Life Not Food | web-enjoylifenotfood"
}
],
"downloadedBytes": 14472,
"queuePosition": "LAST",
"responseStatus": 200,
"responseHeaders": {
"Server": "GitHub.com",
"Content-Type": "text/html; charset=utf-8",
"Last-Modified": "Thu, 02 Jan 2020 15:17:01 GMT",
"ETag": "W/\"5e0e096d-864\"",
"Access-Control-Allow-Origin": "*",
"Expires": "Tue, 07 Jan 2020 12:48:18 GMT",
"Cache-Control": "max-age=600",
"Content-Encoding": "gzip",
"X-Proxy-Cache": "MISS",
"X-GitHub-Request-Id": "D5D4:42C7:10A734E:16AAE9F:5E147BB9",
"Accept-Ranges": "bytes",
"Date": "Tue, 07 Jan 2020 12:48:27 GMT",
"Via": "1.1 varnish",
"Age": "531",
"Connection": "keep-alive",
"X-Served-By": "cache-bwi5064-BWI",
"X-Cache": "HIT",
"X-Cache-Hits": "1",
"X-Timer": "S1578401307.218639,VS0,VE0",
"Vary": "Accept-Encoding",
"X-Fastly-Request-ID": "baf21d340f97644219b3e111529d4bc453a2ff78"
},
"id": "6uvRRK9EWFuVZVF",
"url": "https://www.enjoylifenotfood.com/",
"uniqueKey": "https://www.enjoylifenotfood.com",
"method": "GET",
"postData": null,
"_retryCount": 0,
"proxy": null
},
{
"loadedUrl": "https://www.nichd.nih.gov/",
"requestedAt": "2020-01-07T12:48:26.823Z",
"loadingStartedAt": "2020-01-07T12:48:28.573Z",
"loadingFinishedAt": "2020-01-07T12:48:29.808Z",
"loadErrorCode": null,
"pageFunctionStartedAt": "2020-01-07T12:48:29.826Z",
"pageFunctionFinishedAt": "2020-01-07T12:48:29.903Z",
"type": "StartUrl",
"isMainFrame": true,
"willLoad": true,
"label": null,
"referrerId": null,
"depth": 0,
"pageFunctionResult": [
{
"url": "https://www.nichd.nih.gov",
"pageTitle": "Homepage | NICHD - Eunice Kennedy Shriver National Institute of Child Health and Human Development"
},
{
"url": "https://www.nichd.nih.gov",
"pageTitle": "Homepage | NICHD - Eunice Kennedy Shriver National Institute of Child Health and Human Development"
}
],
"downloadedBytes": 2913768,
"queuePosition": "LAST",
"responseStatus": 200,
"responseHeaders": {
"Date": "Tue, 07 Jan 2020 06:06:08 GMT",
"Cache-Control": "max-age=31536000, public",
"X-Drupal-Dynamic-Cache": "MISS",
"Link": "<https://www.nichd.nih.gov/>; rel=\"shortlink\", <https://www.nichd.nih.gov/>; rel=\"canonical\"",
"X-UA-Compatible": "IE=edge",
"Content-language": "en",
"X-Content-Type-Options": "nosniff",
"X-Frame-Options": "SAMEORIGIN",
"Expires": "Sun, 19 Nov 1978 05:00:00 GMT",
"Last-Modified": "Tue, 07 Jan 2020 06:05:24 GMT",
"ETag": "\"1578377124-gzip\"",
"Vary": "Cookie,Accept-Encoding",
"X-Drupal-Cache": "HIT",
"Content-Encoding": "gzip",
"Content-Type": "text/html; charset=UTF-8",
"X-Varnish": "15315436 16257349",
"Age": "24140",
"Via": "1.1 varnish-v4, 1.1 dca1-bit27",
"X-Varnish-Cache": "HIT",
"Accept-Ranges": "bytes",
"Connection": "keep-alive",
"Strict-Transport-Security": "max-age=31536000; preload",
"X-XSS-Protection": "1; mode=block",
"Set-Cookie": "TS01b2e53e=010193553fcc618575fdda5d265d60ae6a4a9b74cabe9ff75c6d5cb0060f10648213b817ef0cc130e37d4574ced25235908fc5b1a0; Path=/; Secure; HTTPOnly"
},
"id": "S3UIH4WWMnlqgIs",
"url": "https://www.nichd.nih.gov",
"uniqueKey": "https://www.nichd.nih.gov",
"method": "GET",
"postData": null,
"_retryCount": 0,
"proxy": null
}]
The crawler is crashing and causing the task to fail. The problem seems to be related to network timeout and the PageManager.
2020-03-22T10:27:24.364Z [S0000005] ERROR: RemoteRequestManager.webPage.onResourceTimeout(): {
2020-03-22T10:27:24.366Z "errorCode": 408,
2020-03-22T10:27:24.369Z "errorString": "Network timeout on resource.",
2020-03-22T10:27:24.371Z "headers": [
2020-03-22T10:27:24.374Z {
2020-03-22T10:27:24.376Z "name": "Accept",
2020-03-22T10:27:24.378Z "value": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2020-03-22T10:27:24.380Z },
2020-03-22T10:27:24.383Z {
2020-03-22T10:27:24.386Z "name": "Origin",
2020-03-22T10:27:24.388Z "value": "null"
2020-03-22T10:27:24.390Z },
2020-03-22T10:27:24.394Z {
2020-03-22T10:27:24.396Z "name": "User-Agent",
2020-03-22T10:27:24.399Z "value": "Mozilla/5.0 (Unknown; Linux x86_64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.1.1s-apifier Safari/538.1"
2020-03-22T10:27:24.401Z },
2020-03-22T10:27:24.403Z {
2020-03-22T10:27:24.406Z "name": "Content-Type",
2020-03-22T10:27:24.408Z "value": "application/json"
2020-03-22T10:27:24.410Z },
2020-03-22T10:27:24.413Z {
2020-03-22T10:27:24.415Z "name": "Content-Length",
2020-03-22T10:27:24.417Z "value": "54"
2020-03-22T10:27:24.419Z }
2020-03-22T10:27:24.421Z ],
2020-03-22T10:27:24.424Z "id": 19,
2020-03-22T10:27:24.426Z "method": "POST",
2020-03-22T10:27:24.428Z "postData": "{\"messageType\":\"dummy\",\"piggybackBufferedRequests\":[]}",
2020-03-22T10:27:24.431Z "time": "2020-03-22T10:26:34.395Z",
2020-03-22T10:27:24.433Z "url": "http://localhost:34519/slave/5"
2020-03-22T10:27:24.437Z }
2020-03-22T10:27:24.439Z [S0000005] ERROR: RemoteRequestManager.webPage.onResourceError(): {
2020-03-22T10:27:24.441Z "errorCode": 5,
2020-03-22T10:27:24.443Z "errorString": "Operation canceled",
2020-03-22T10:27:24.445Z "id": 19,
2020-03-22T10:27:24.448Z "status": null,
2020-03-22T10:27:24.450Z "statusText": null,
2020-03-22T10:27:24.452Z "url": "http://localhost:34519/slave/5"
2020-03-22T10:27:24.454Z }
2020-03-22T10:27:24.457Z [S0000005] ERROR: Couldn't send message to control server at 'http://localhost:34519/slave/5' (messageType=dummy, status: 'fail'):
2020-03-22T10:27:24.460Z [S0000005] A fatal error occurred, shutting down...
2020-03-22T10:27:24.463Z INFO: Slave exited {"slaveId":5,"pid":36,"code":232,"signal":null}
2020-03-22T10:27:24.465Z INFO: Reclaiming request to queue, it will be retried again {"requestId":"bzqn4DDibYTEBp2","slaveId":5}
2020-03-22T10:27:25.047Z [S0000018] Loading crawler configuration from: /tmp/tmp-6M1q6QBgl1of3/config.json
2020-03-22T10:27:25.049Z [S0000018] WARNING: No 'crawlPurls' specified in the configuration!
2020-03-22T10:27:25.051Z [S0000018] Starting crawler using RemoteRequestManager (URL: http://localhost:34519/slave/18, bootstrap: undefined)...
2020-03-22T10:27:43.100Z INFO: Reclaiming request to queue, it will be retried again {"requestId":"ywWZUDAYrQ3e7qq"}
2020-03-22T10:27:43.189Z ERROR: PhantomCrawler: Unhandled exception
2020-03-22T10:27:43.192Z Error: Cannot mark request Fy4QLsrdYTqEB1R as handled, because it is not in progress!
2020-03-22T10:27:43.194Z at RequestQueue.markRequestHandled (/home/myuser/node_modules/apify/build/request_queue.js:431:13)
2020-03-22T10:27:43.196Z at PageManager.markRequestHandled (/home/myuser/src/page_manager.js:290:52)
2020-03-22T10:27:43.200Z at runMicrotasks (<anonymous>)
2020-03-22T10:27:43.202Z at processTicksAndRejections (internal/process/task_queues.js:97:5)
2020-03-22T10:27:43.204Z at async PhantomCrawler._handleNextTaskFromSlave (/home/myuser/src/phantom_crawler.js:735:21)
We were discussing that similarly to input schema, actors could define output schema which would present some nice UI to the results of the actor. So this could be the first step, to generate something to output. The question is, what should it be? Probably a link to full and simplified results, and perhaps a first few records from the output, to enable synchronous calling.
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