东北师范大学中小学教师网络培训平台刷课脚本

// 东北师范大学中小学教师网络培训平台辅助脚本
class DbsfHelper {
    constructor() {
        this.config = {
            autoPlay: true,
            playbackSpeed: 2.0,
            autoMute: true,
            autoAnswer: true,
            autoNext: true,
            antiDetect: true,
            mainInterval: 2500,
            activityInterval: 15000,
            maxRetries: 5
        };
        
        this.retryCounter = 0;
        this.init();
    }
    
    log(msg) {
        console.log(`[东北师大培训] ${msg}`);
    }
    
    init() {
        this.log('脚本初始化中...');
        
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => {
                this.start();
            });
        } else {
            this.start();
        }
    }
    
    start() {
        this.log('东北师范大学刷课脚本已启动');
        
        setInterval(() => {
            this.mainLoop();
        }, this.config.mainInterval);
        
        if (this.config.antiDetect) {
            setInterval(() => {
                this.simulateActivity();
            }, this.config.activityInterval);
        }
    }
    
    getVideoElement() {
        const selectors = [
            'video',
            '.video-player video',
            '#video-wrapper video',
            '.course-player video',
            '.media-content video',
            '[class*="player"] video',
            '[id*="video"] video'
        ];
        
        for (let i = 0; i < selectors.length; i++) {
            const video = document.querySelector(selectors[i]);
            if (video) {
                return video;
            }
        }
        return null;
    }
    
    setupVideo(video) {
        if (!video) return;
        
        if (this.config.autoMute && !video.muted) {
            video.muted = true;
            this.log('视频已静音');
        }
        
        if (video.playbackRate !== this.config.playbackSpeed) {
            video.playbackRate = this.config.playbackSpeed;
            this.log(`播放速度设置为 ${this.config.playbackSpeed}x`);
        }
        
        video.addEventListener('ratechange', () => {
            if (video.playbackRate !== this.config.playbackSpeed) {
                video.playbackRate = this.config.playbackSpeed;
            }
        });
    }
    
    playVideo(video) {
        if (!video) return;
        
        if (video.paused && !video.ended) {
            this.log('检测到视频暂停，尝试播放');
            
            video.play().then(() => {
                this.log('视频播放成功');
                this.retryCounter = 0;
            }).catch(err => {
                this.log(`播放失败: ${err.message}`);
                this.retryCounter++;
                
                if (this.retryCounter < this.config.maxRetries) {
                    this.log(`尝试点击播放按钮 (${this.retryCounter}/${this.config.maxRetries})`);
                    this.clickPlayBtn();
                }
            });
        }
    }
    
    clickPlayBtn() {
        const btnSelectors = [
            '.play-btn',
            '.video-play',
            '.btn-start',
            '.vjs-play-control',
            '.play-button',
            '#playBtn',
            '[class*="play"]',
            'button[aria-label*="播放"]'
        ];
        
        for (const selector of btnSelectors) {
            const btn = document.querySelector(selector);
            if (btn && btn.offsetParent !== null) {
                btn.click();
                this.log(`已点击播放按钮: ${selector}`);
                break;
            }
        }
    }
    
    handleQuiz() {
        if (!this.config.autoAnswer) return;
        
        const quizSelectors = [
            '.quiz-modal',
            '.exam-popup',
            '.question-box',
            '.answer-dialog',
            '.test-container',
            '[class*="quiz"]',
            '[class*="exam"]'
        ];
        
        let quiz = null;
        for (const selector of quizSelectors) {
            const el = document.querySelector(selector);
            if (el && !el.hidden && el.offsetParent !== null) {
                quiz = el;
                this.log(`检测到答题弹窗: ${selector}`);
                break;
            }
        }
        
        if (!quiz) return;
        
        const optionSelectors = [
            'input[type="radio"]',
            'input[type="checkbox"]',
            '.option',
            '.choice',
            '.answer-item',
            '[class*="option"]'
        ];
        
        let selected = false;
        for (const selector of optionSelectors) {
            const options = quiz.querySelectorAll(selector);
            if (options.length > 0) {
                for (let i = 0; i < Math.min(3, options.length); i++) {
                    if (options[i]) {
                        options[i].click();
                    }
                }
                this.log('已选择答案');
                selected = true;
                break;
            }
        }
        
        if (selected) {
            setTimeout(() => {
                const submitSelectors = [
                    '.submit-btn',
                    '.confirm-btn',
                    '.btn-submit',
                    'button:contains("提交")',
                    'button:contains("确定")',
                    '[class*="submit"]'
                ];
                
                for (const selector of submitSelectors) {
                    const btn = quiz.querySelector(selector);
                    if (btn) {
                        btn.click();
                        this.log('已提交答案');
                        break;
                    }
                }
            }, 1500);
        }
    }
    
    nextLesson() {
        if (!this.config.autoNext) return;
        
        const video = this.getVideoElement();
        if (!video || !video.ended) return;
        
        this.log('课程播放完毕，准备切换');
        
        const nextSelectors = [
            '.next-lesson',
            '.next-chapter',
            '.btn-next',
            '.lesson-next',
            'a[title*="下一课"]',
            '[class*="next"]'
        ];
        
        for (const selector of nextSelectors) {
            const btn = document.querySelector(selector);
            if (btn && btn.offsetParent !== null) {
                btn.click();
                this.log('已点击下一课');
                break;
            }
        }
    }
    
    simulateActivity() {
        if (!this.config.antiDetect) return;
        
        const x = Math.random() * window.innerWidth;
        const y = Math.random() * window.innerHeight;
        
        const moveEvent = new MouseEvent('mousemove', {
            view: window,
            bubbles: true,
            cancelable: true,
            clientX: x,
            clientY: y
        });
        document.dispatchEvent(moveEvent);
        
        const keyEvent = new KeyboardEvent('keydown', {
            key: 'Control',
            bubbles: true
        });
        document.dispatchEvent(keyEvent);
        
        if (Math.random() > 0.5) {
            window.scrollBy(0, Math.random() > 0.5 ? 30 : -30);
        }
        
        this.log('已模拟用户活动');
    }
    
    mainLoop() {
        const video = this.getVideoElement();
        
        if (video) {
            this.setupVideo(video);
            this.playVideo(video);
            this.nextLesson();
        }
        
        this.handleQuiz();
    }
}

new DbsfHelper();