Geographic Testing with Proxies: How to Ensure Global Content Accessibility

// Example: Configuring a geographic testing system
class GeoTestingSystem {
  constructor(apiKey) {
    this.apiKey = apiKey;
    this.proxyPool = {};
  }
  
  // Initialize proxy pools for each target region
  async initializeProxyPools(targetRegions) {
    for (const region of targetRegions) {
      console.log('Initializing proxy pool for region: ' + region.name);
      
      // Request residential proxies from the specific country/city
      const response = await fetch(
        'https://api.proxyvault.com/v1/random/json?country=' + region.countryCode + 
        (region.city ? '&city=' + region.city : '') + 
        '&type=residential&count=5',
        {
          headers: {
            'Authorization': 'Bearer ' + this.apiKey
          }
        }
      );
      
      const data = await response.json();
      this.proxyPool[region.name] = data.data;
      
      console.log('Acquired ' + data.data.length + ' proxies for ' + region.name);
    }
  }
  
  // Get a proxy for a specific region
  getRegionalProxy(regionName) {
    const regionProxies = this.proxyPool[regionName];
    if (!regionProxies || regionProxies.length === 0) {
      throw new Error('No proxies available for region: ' + regionName);
    }
    
    // Return a random proxy from the pool
    return regionProxies[Math.floor(Math.random() * regionProxies.length)];
  }
}

// Example: Running a geographic content test
async function testContentAvailability(testSystem, url, regions) {
  const results = {};
  
  for (const region of regions) {
    console.log('Testing content availability in ' + region.name);
    
    try {
      // Get a proxy for this specific region
      const proxy = testSystem.getRegionalProxy(region.name);
      
      // Configure your HTTP client with this proxy
      // This example uses a hypothetical browser automation library
      const browser = await launchBrowser({
        proxy: {
          server: proxy.ip + ':' + proxy.port,
          username: proxy.username,
          password: proxy.password
        }
      });
      
      // Navigate to the target URL
      const page = await browser.newPage();
      await page.goto(url);
      
      // Check for region-specific elements or restrictions
      const isContentAvailable = await page.evaluate(() => {
        // Look for region restriction messages
        const restrictionElement = document.querySelector('.region-restriction, .content-unavailable');
        if (restrictionElement) {
          return false;
        }
        
        // Check for the main content element
        const mainContent = document.querySelector('#main-content, .video-player, .article-body');
        return !!mainContent;
      });
      
      // Check page title to verify correct regional version
      const pageTitle = await page.title();
      
      // Store results for this region
      results[region.name] = {
        available: isContentAvailable,
        title: pageTitle,
        timestamp: new Date().toISOString()
      };
      
      await browser.close();
    } catch (error) {
      console.error('Error testing ' + region.name + ': ' + error.message);
      
      results[region.name] = {
        error: error.message,
        available: false,
        timestamp: new Date().toISOString()
      };
    }
  }
  
  return results;
}

// Example: Parallel geographic testing implementation
async function runParallelGeoTests(testSystem, testUrl, regions, testFunction) {
  console.log('Starting parallel tests across ' + regions.length + ' regions');
  
  // Create a promise for each regional test
  const testPromises = regions.map(region => {
    return new Promise(async (resolve) => {
      try {
        const proxy = testSystem.getRegionalProxy(region.name);
        const result = await testFunction(testUrl, proxy, region);
        resolve({ region: region.name, result, status: 'success' });
      } catch (error) {
        resolve({ region: region.name, error: error.message, status: 'error' });
      }
    });
  });
  
  // Run all tests in parallel
  const results = await Promise.all(testPromises);
  
  // Organize results by region
  const organizedResults = {};
  results.forEach(result => {
    organizedResults[result.region] = result;
  });
  
  return organizedResults;
}

// Example: Geographic performance testing
async function testRegionalPerformance(testSystem, url, regions) {
  const performanceResults = {};
  
  for (const region of regions) {
    const proxy = testSystem.getRegionalProxy(region.name);
    
    // Configure browser with this proxy
    const browser = await launchBrowser({
      proxy: {
        server: proxy.ip + ':' + proxy.port,
        username: proxy.username,
        password: proxy.password
      }
    });
    
    // Create a new page and enable performance metrics
    const page = await browser.newPage();
    await page.setCacheEnabled(false);
    
    // Navigate and collect performance metrics
    const navigationStart = Date.now();
    await page.goto(url);
    
    // Collect performance metrics
    const metrics = await page.evaluate(() => {
      const perfData = window.performance.timing;
      return {
        dnsLookup: perfData.domainLookupEnd - perfData.domainLookupStart,
        tcpConnection: perfData.connectEnd - perfData.connectStart,
        serverResponse: perfData.responseStart - perfData.requestStart,
        domLoading: perfData.domLoading - perfData.responseEnd,
        domInteractive: perfData.domInteractive - perfData.responseEnd,
        domComplete: perfData.domComplete - perfData.responseEnd,
        fullPageLoad: perfData.loadEventEnd - perfData.navigationStart
      };
    });
    
    performanceResults[region.name] = {
      metrics,
      timestamp: new Date().toISOString()
    };
    
    await browser.close();
  }
  
  return performanceResults;
}

// Example: Worker-based geographic testing system
function createWorker(region, proxyPool) {
  return {
    region,
    proxy: proxyPool.getRegionalProxy(region.name),
    busy: false,
    
    async runTest(testUrl, testFunction) {
      if (this.busy) {
        throw new Error('Worker is busy');
      }
      
      this.busy = true;
      
      try {
        console.log('Worker for ' + this.region.name + ' starting test');
        const result = await testFunction(testUrl, this.proxy, this.region);
        console.log('Worker for ' + this.region.name + ' completed test');
        return result;
      } finally {
        this.busy = false;
      }
    }
  };
}

async function runTests(testUrls, regions, proxySystem) {
  // Create a worker for each region
  const workers = regions.map(region => createWorker(region, proxySystem));
  const results = {};
  
  for (const url of testUrls) {
    results[url] = {};
    
    // Run tests for this URL across all regions
    const testPromises = workers.map(worker => {
      return worker.runTest(url, async (testUrl, proxy, region) => {
        // Implement your test logic here
        return { status: 'success', data: 'Test results' };
      });
    });
    
    const testResults = await Promise.all(testPromises);
    
    // Organize results by region
    testResults.forEach((result, index) => {
      results[url][workers[index].region.name] = result;
    });
  }
  
  return results;
}