Greasy Fork

https://github.com/ColdThunder11/ChaoXingDownload/blob/master/cxdownload.user.js可以实现学生端ppt的下载，可以参考改进，请问这是怎么实现的呀？

好像弄明白了，外部访问该文件的链接时https://d0.ananas.chaoxing.com/download/一长串东西，下载链接从https://mooc1-1.chaoxing.com/ananas/status/{objectid}?flag=normal获取，会403Forbidden无法访问，但是创建一个页面button后，可以通过button访问

driver.execute_script(f'''
                       var e = document.createElement('a');
                       e.href = "{url}";
                       e.target = '_self';
                       document.body.appendChild(e);
                       e.click();
                   ''')
driver.execute_script(f'''
                                   var e = document.createElement('a');
                                   e.href = "{download_url}";
                                   e.target = '_self';
                                   document.body.appendChild(e);
                                   e.click();
                               ''')

好像弄明白了，外部访问该文件的链接时https://d0.ananas.chaoxing.com/download/一长串东西，下载链接从https://mooc1-1.chaoxing.com/ananas/status/{objectid}?flag=normal获取，会403Forbidden无法访问，但是创建一个页面button后，可以通过button访问

driver.execute_script(f'''
                       var e = document.createElement('a');
                       e.href = "{url}";
                       e.target = '_self';
                       document.body.appendChild(e);
                       e.click();
                   ''')
driver.execute_script(f'''
                                   var e = document.createElement('a');
                                   e.href = "{download_url}";
                                   e.target = '_self';
                                   document.body.appendChild(e);
                                   e.click();
                               ''')

hello，这个涉及到cookie的问题，可以使用1，08版本，对学生ppt进行下载

好像弄明白了，外部访问该文件的链接时https://d0.ananas.chaoxing.com/download/一长串东西，下载链接从https://mooc1-1.chaoxing.com/ananas/status/{objectid}?flag=normal获取，会403Forbidden无法访问，但是创建一个页面button后，可以通过button访问

driver.execute_script(f'''
                       var e = document.createElement('a');
                       e.href = "{url}";
                       e.target = '_self';
                       document.body.appendChild(e);
                       e.click();
                   ''')
driver.execute_script(f'''
                                   var e = document.createElement('a');
                                   e.href = "{download_url}";
                                   e.target = '_self';
                                   document.body.appendChild(e);
                                   e.click();
                               ''')

hello，这个涉及到cookie的问题，可以使用1，08版本，对学生ppt进行下载

还是一样只能下载pdf
不过我按上面的方法写了一个python代码下载倒是挺好用的

简陋的批量下载

import json
import os
import re
import time

from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait

# 设置学习通登录信息
username = input("请输入学习通用户名：")
password = input("请输入学习通密码：")

DOWNLOAD_PATH = os.path.abspath("./Mooc/release")
chrome_path = os.path.abspath('./chrome-win64/chrome.exe')
chromedriver_path = os.path.abspath('./chromedriver-win64/chromedriver.exe')
DATA_PATH = os.path.abspath('./User Data')
CACHE_PATH = os.path.abspath('./Cache')
prefs = {
    'download.default_directory': DOWNLOAD_PATH,  # 设置默认下载路径
    "profile.default_content_setting_values.automatic_downloads": 1  # 允许多文件下载
}

# 初始化 Selenium WebDriver
chrome_options = Options()
chrome_options.binary_location = chrome_path

chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("--window-size=800,600")
chrome_options.add_argument("--disk-cache-dir=%s" % CACHE_PATH)
chrome_options.add_argument("--user-data-dir=%s" % DATA_PATH)
chrome_options.add_experimental_option("prefs", prefs)
chrome_options.add_argument("--no-sandbox")
# chrome_options.add_argument("--incognito")  # 无痕模式
# chrome_options.add_argument("--auto-open-devtools-for-tabs")

service = Service(executable_path=chromedriver_path)
driver = webdriver.Chrome(service=service, options=chrome_options)
wait = WebDriverWait(driver, 30)  # 增加等待时间

def login_to_chaoxing(username, password):
    """登录到学习通"""
    login_url = 'https://passport2.chaoxing.com/login?fid=&newversion=true&refer=https%3A%2F%2Fi.chaoxing.com'
    driver.get(login_url)
    wait.until(EC.presence_of_element_located((By.ID, 'phone'))).send_keys(username)
    wait.until(EC.presence_of_element_located((By.ID, 'pwd'))).send_keys(password)
    wait.until(EC.element_to_be_clickable((By.ID, 'loginBtn'))).click()

    try:
        wait.until(EC.presence_of_element_located((By.XPATH, "//li[contains(text(), '退出空间')]")))
        print("登录成功")
    except Exception:
        print("登录失败，请检查用户名和密码")
        driver.quit()
        exit()

def fetch_course_list():
    """获取课程列表"""
    course_list_url = 'https://mooc2-ans.chaoxing.com/mooc2-ans/visit/interaction'
    driver.get(course_list_url)
    wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'course-info')))
    soup = BeautifulSoup(driver.page_source, 'html.parser')

    courses = []
    for course_element in soup.find_all('div', class_='course-info'):
        link_element = course_element.find('a', class_='color1')
        if link_element:
            course_name = link_element.find('span', class_='course-name').text.strip()
            course_href = link_element['href']
            course_id_match = re.search(r'courseid=(\d+)', course_href)
            if course_id_match:
                courses.append({
                    'name': course_name,
                    'id': course_id_match.group(1),
                    'href': course_href
                })
    return courses

def fetch_course_content(course_link, course_id):
    """获取课程内容"""
    driver.get(course_link)
    chapter_link = wait.until(EC.presence_of_element_located(
        (By.XPATH, '//a[@title="章节" and @data-url="/mooc2-ans/mycourse/studentcourse"]')))
    chapter_link.click()

    new_url = re.sub(r'/mooc2-ans/mycourse/stu', '/mooc2-ans/mycourse/studentcourse', driver.current_url)
    driver.get(new_url)
    wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'chapter_unit')))
    soup = BeautifulSoup(driver.page_source, 'html.parser')

    content = []
    for unit in soup.find_all('div', class_='chapter_unit'):
        chapter_title = unit.find('div', class_='catalog_name').find('a', class_='clicktitle').get_text(strip=True)
        sections = [
            {
                'title': section.find('a', class_='clicktitle').text.strip(),
                'id': section.find('div', class_='chapter_item')['id'].replace('cur', ''),
                'link': f"https://mooc1.chaoxing.com/mycourse/studentstudy?chapterId={section.find('div', class_='chapter_item')['id'].replace('cur', '')}&courseId={course_id}&clazzid=82268686&cpi=207357565&enc=17e478983a375dc5d27b9c2161e3a0d1&mooc2=1&openc=0fd608d5ef54aa63d5b90ed324a6be77"
            }
            for section in unit.find_all('li')
        ]
        content.append({'title': chapter_title, 'sections': sections})
    return content

def replace_http_with_https(url):
    """替换协议头"""
    return 'https://' + url[7:] if url.startswith('http://') else url

def download_course_files(course_content, courseid):
    """下载课程文件"""
    for chapter in course_content:
        for section in chapter['sections']:
            section_id = section['id']
            section_url = f'https://mooc1.chaoxing.com/mooc-ans/knowledge/cards?courseid={courseid}&knowledgeid={section_id}'
            driver.get(section_url)
            add_download_buttons_if_needed(driver)
            time.sleep(5)

def add_download_buttons_if_needed(driver):
    """检查并添加下载按钮"""
    soup = BeautifulSoup(driver.page_source, 'html.parser')
    iframes = soup.find_all('div', class_='ans-attach-ct')
    for iframe in iframes:
        inner_iframe = iframe.find('iframe')
        data = inner_iframe.get('data')
        if data:
            jsondata = json.loads(data)
            if 'objectid' in jsondata.keys():
                if jsondata["type"] in [".ppt", ".pptx", ".pdf", ".doc", ".docx"]:
                    objectid = jsondata['objectid']
                    url = f"https://mooc1-1.chaoxing.com/ananas/status/{objectid}?flag=normal"
                    driver.execute_script(f'''
                        var e = document.createElement('a');
                        e.href = "{url}";
                        e.target = '_self';
                        document.body.appendChild(e);
                        e.click();
                        document.body.removeChild(e);
                    ''')
                    download_data = json.loads(BeautifulSoup(driver.page_source, 'html.parser').find('pre').text)
                    download_url = replace_http_with_https(download_data['download'])
                    driver.execute_script(f'''
                        var e = document.createElement('a');
                        e.href = "{download_url}";
                        e.target = '_self';
                        document.body.appendChild(e);
                        e.click();
                        document.body.removeChild(e);
                    ''')
                    print(f"{download_data['filename']}下载中...")

def print_course_tree(course_content):
    """显示课程内容树"""
    for chapter in course_content:
        print(f"章节: {chapter['title']}")
        for section in chapter['sections']:
            print(f"  节: {section['title']}")

def clear_browser_data_and_cache():
    """清除浏览器数据和缓存"""
    driver.execute_cdp_cmd('Storage.clearDataForOrigin', {
        "origin": "*",
        "storageTypes": "all"
    })
    driver.execute_cdp_cmd('Network.clearBrowserCache', {})
    driver.execute_cdp_cmd('Network.clearBrowserCookies', {})
    print("浏览器数据和缓存已清除")

def main():
    """主函数"""
    login_to_chaoxing(username, password)
    courses = fetch_course_list()
    for i, course in enumerate(courses):
        print(f"{i}. {course['name']} (ID: {course['id']})")
    course_index = int(input("请选择课程编号："))
    selected_course = courses[course_index]
    courseid = selected_course['id']
    course_content = fetch_course_content(selected_course['href'], courseid)
    print_course_tree(course_content)
    download_course_files(course_content, courseid)
    clear_browser_data_and_cache()
    driver.quit()

if __name__ == '__main__':
    main()

https://github.com/ColdThunder11/ChaoXingDownload/blob/master/cxdownload.user.js可以实现学生端ppt的下载，可以参考改进，请问这是怎么实现的呀？

你好，最近有时间就更新了，添加了按钮，并且可以下载PPT源文件了

https://github.com/ColdThunder11/ChaoXingDownload/blob/master/cxdownload.user.js可以实现学生端ppt的下载，可以参考改进，请问这是怎么实现的呀？

你好，最近有时间就更新了，添加了按钮，并且可以下载PPT源文件了