Function analyzePageContext

scripts/content.js:719–764

* 分析页面上下文（增强版）

()

 * 分析页面上下文（增强版）
 */
function analyzePageContext() {
    const pageTitle = document.title;
    const metaDesc = document.querySelector('meta[name="description"]')?.content || '';
    const url = window.location.href;
    const language = document.documentElement.lang || navigator.language || 'en';

    // 检测页面类型
    const pageType = detectPageType(url, pageTitle, metaDesc);

    // 获取表单 action
    const forms = document.querySelectorAll('form');
    const formActions = [];
    forms.forEach(form => {
        if (form.action) {
            formActions.push(form.action);
        }
    });

    // 获取页面主标题
    const h1 = document.querySelector('h1');
    const mainHeading = h1 ? h1.innerText.trim() : '';

    // 检测是否有 CAPTCHA
    const hasCaptcha = !!(
        document.querySelector('[class*="captcha"]') ||
        document.querySelector('[id*="captcha"]') ||
        document.querySelector('[class*="recaptcha"]') ||
        document.querySelector('iframe[src*="recaptcha"]')
    );

    // 检测提交按钮文本
    const submitBtn = document.querySelector('button[type="submit"], input[type="submit"], button:not([type])');
    const submitText = submitBtn ? (submitBtn.innerText || submitBtn.value || '').trim() : '';

    return {
        title: pageTitle,
        description: metaDesc,
        url: url,
        language: language,
        pageType: pageType,
        mainHeading: mainHeading,
        formActions: formActions,
        hasCaptcha: hasCaptcha,
        submitButtonText: submitText
    };
}

/**
 * 检测页面类型