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Petr Cermak
1# Dockerfile contains instructions how to build a Docker image that
2# will contain all the code and configuration needed to run your actor.
3# For a full Dockerfile reference,
4# see https://docs.docker.com/engine/reference/builder/
5
6# First, specify the base Docker image. Apify provides the following
7# base images for your convenience:
8# apify/actor-node-basic (Node.js on Alpine Linux, small and fast)
9# apify/actor-node-chrome (Node.js + Chrome on Debian)
10# apify/actor-node-chrome-xvfb (Node.js + Chrome + Xvfb on Debian)
11# For more information, see https://docs.apify.com/actor/build#base-images
12# Note that you can use any other image from Docker Hub.
13FROM apify/actor-node-basic
14
15# Second, copy just package.json since it should be the only file
16# that affects "npm install" in the next step, to speed up the build
17COPY package.json ./
18
19# Install NPM packages, skip optional and development dependencies to
20# keep the image small. Avoid logging too much and print the dependency
21# tree for debugging
22RUN npm --quiet set progress=false \
23 && npm install --only=prod --no-optional \
24 && echo "Installed NPM packages:" \
25 && npm list || true \
26 && echo "Node.js version:" \
27 && node --version \
28 && echo "NPM version:" \
29 && npm --version
30
31# Next, copy the remaining files and directories with the source code.
32# Since we do this after NPM install, quick build will be really fast
33# for most source file changes.
34COPY . ./
35
36# Optionally, specify how to launch the source code of your actor.
37# By default, Apify's base Docker images define the CMD instruction
38# that runs the Node.js source code using the command specified
39# in the "scripts.start" section of the package.json file.
40# In short, the instruction looks something like this:
41#
42# CMD npm start1const Apify = require('apify');
2const fetch = require('node-fetch');
3
4const postJson = async (url, body) => {
5 const opt = {
6 method: 'POST',
7 body: JSON.stringify(body),
8 headers: {'Content-Type': 'application/json'}
9 };
10 const response = await fetch(url, opt);
11 return await response.json();
12};
13
14class AntiCaptchaTask {
15
16 constructor(input){
17 this.input = input;
18 this.taskId = null;
19 this.clientKey = input.clientKey;
20 }
21
22 async create(){
23 const data = await postJson('http://api.anti-captcha.com/createTask', this.input);
24 if(data.errorId > 0){throw new Error(data.errorDescription);}
25 this.taskId = data.taskId;
26 return data.taskId;
27 }
28
29 async getResult(){
30 const body = {
31 taskId: this.taskId,
32 clientKey: this.clientKey,
33 };
34 const data = await postJson('http://api.anti-captcha.com/getTaskResult', body);
35 if(data.errorId > 0){throw new Error(data.errorDescription);}
36 return data;
37 }
38
39 async waitForResult(timeout = 600000){
40 return new Promise((resolve, reject) => {
41 const startedAt = new Date();
42 const waitLoop = () => {
43 if((new Date() - startedAt) > timeout){
44 reject(new Error("Waiting for result timed out."));
45 }
46 this.getResult().then((response) => {
47 if(response.errorId !== 0){
48 reject(new Error(response.errorDescription));
49 }
50 else{
51 console.log(response);
52 if(response.status === 'ready'){resolve(response);}
53 else{
54 console.log('...');
55 setTimeout(waitLoop, 1000);
56 }
57 }
58 }).catch((e) => reject(e));
59 };
60 waitLoop();
61 });
62 }
63
64}
65
66Apify.main(async () => {
67
68 const input = await Apify.getValue('INPUT');
69 if(!input.clientKey){
70 throw new Error('ERROR: missing "clientKey" attribute in INPUT');
71 }
72 if(!input.task){
73 throw new Error('ERROR: missing "task" attribute in INPUT');
74 }
75 if(!input.task.type){
76 throw new Error('ERROR: missing "task.type" attribute in INPUT');
77 }
78
79 console.log('Solving captcha, type: ' + input.task.type);
80
81 const task = new AntiCaptchaTask(input);
82 console.log('Creating AntiCaptcha task...');
83 await task.create();
84 console.log('Waiting for result...');
85 const result = await task.waitForResult();
86 console.log('Captcha solving succesful.');
87 await Apify.setValue('OUTPUT', result.solution);
88 console.log('Solution: ');
89 console.dir(result.solution);
90});1{
2 "name": "anti-captcha",
3 "version": "0.0.1",
4 "dependencies": {
5 "apify": "^1.0.0",
6 "node-fetch": "^2.6.1"
7 },
8 "scripts": {
9 "start": "node main.js"
10 },
11 "author": "Petr Cermak"
12}