fredy/lib/services/extractor/utils.js

let debuggingOn = false;

export const DEFAULT_HEADER = {
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
    'Accept-Language': 'en-US,en;q=0.5',
    'Connection': 'keep-alive',
    'Upgrade-Insecure-Requests': '1',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36'
};

export const setDebug = options => {
    debuggingOn = !!options?.debug;
};

export const debug = (message) => {
    if(debuggingOn) {
        console.debug(message);
    }
};

export const botDetected = (pageSource, statusCode) => {
    const suspiciousStatusCodes = [
        403, 429
    ];
    const botDetectionPatterns = [
        /verify you are human/i,
        /access denied/i,
        /x-amz-cf-id/i,
    ];

    const detectedInSource = botDetectionPatterns.some(pattern => pattern.test(pageSource));
    const detectedByStatus = suspiciousStatusCodes.includes(statusCode);

    return detectedInSource || detectedByStatus;
};