Introduction to AnyProxy

AnyProxy is a powerful tool designed for network traffic interception, analysis, and manipulation. It provides users with a range of APIs to customize and enhance their proxy server functionalities.

Useful API Examples

Here we will explore some of the most useful APIs provided by AnyProxy with code snippets:

Start Proxy Server

This API is used to start a new proxy server.

  const AnyProxy = require('anyproxy');
  const options = {
    port: 8001,
    rule: require('./rule.js'),
    webInterface: {
      enable: true,
      webPort: 8002
    },
    throttle: 10000,
    forceProxyHttps: true,
    wsIntercept: false,
    silent: false
  };
  const proxyServer = new AnyProxy.ProxyServer(options);
  proxyServer.start();

Stop Proxy Server

This API is used to stop a running proxy server.

  proxyServer.close();

Intercept Requests

This example demonstrates how to intercept and modify requests.

  module.exports = {
    *beforeSendRequest(requestDetail) {
      const newRequest = requestDetail;
      newRequest.requestOptions.headers['x-new-header'] = 'newHeaderValue';
      return new Promise((resolve) => {
        resolve({ requestOptions: newRequest.requestOptions });
      });
    }
  };

Intercept Responses

This example shows how to intercept and modify responses.

  module.exports = {
    *beforeSendResponse(requestDetail, responseDetail) {
      const newResponse = responseDetail;
      newResponse.response.body += '/* Modified by AnyProxy */';
      return new Promise((resolve) => {
        resolve({ response: newResponse.response });
      });
    }
  };

Logging Traffic

This example demonstrates how to log incoming and outgoing traffic.

  const log4js = require('log4js');
  log4js.configure({
    appenders: { anyproxy: { type: 'file', filename: 'anyproxy.log' } },
    categories: { default: { appenders: ['anyproxy'], level: 'debug' } }
  });
  const logger = log4js.getLogger('anyproxy');

  module.exports = {
    *beforeSendRequest(requestDetail) {
      logger.debug(`Request to: ${requestDetail.url}`);
      return null;
    },
    *beforeSendResponse(requestDetail, responseDetail) {
      logger.debug(`Response from ${requestDetail.url}`);
      return null;
    }
  };

Application Example

Let’s create an application that logs all requests and modifies responses.

  const AnyProxy = require('anyproxy');
  const logTrafficAndModifyResponses = {
    *beforeSendRequest(requestDetail) {
      console.log(`Request to: ${requestDetail.url}`);
      return null;
    },
    *beforeSendResponse(requestDetail, responseDetail) {
      responseDetail.response.body += '/* Modified by AnyProxy */';
      return null;
    }
  };

  const options = {
    port: 8000,
    rule: logTrafficAndModifyResponses,
    webInterface: {
      enable: true,
      webPort: 8001
    },
    throttle: 10000,
    forceProxyHttps: true,
    wsIntercept: false,
    silent: false
  };
  const proxyServer = new AnyProxy.ProxyServer(options);
  proxyServer.start();

This script sets up an AnyProxy server that logs requests to the console and appends a comment to all responses. You can run this script to see AnyProxy in action.

Hash: 461d84e15ba64831369c17efa5c50391998631de16f32448df30d8e33449cd2c