464 lines
17 KiB
Python
464 lines
17 KiB
Python
import requests
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import re
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import os
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import sys
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import json
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import time
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import subprocess
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import xml.etree.ElementTree as ET
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# 当前程序只能一键对所有课程进行刷课，如需选择课程请自行修改代码
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# cookie 请替换为你的登录 Cookie，在视频页从控制台执行Job.updateStatus()请求头中获取，其中的负载参数有很多字段，包括课程id等信息，您可参考字段删除内容以防止已完成课程的刷取，即使代码中包含了完成判断逻辑
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# 您可根据视频心跳请求中的负载参数修改json缓存从而达到跳过指定课程的目的，十分银杏
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# [警告] 下方的 cookie 包含敏感登录信息，请勿泄露给他人！
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cookie = ""
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url = "https://zjbc.cjnep.net/lms/web/course/index"
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cache_file = "course_ids.json"
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items_cache_file = "course_items.json"
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progress_cache_file = "progress.json"
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# [配置] 心跳间隔（秒）
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# 警告：建议设置在 60 秒以上，过快的心跳可能面临风险！
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HEARTBEAT_INTERVAL = 0
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# [配置] 每次心跳增加的进度时间（秒）
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ADD_TIME = 120
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headers = {
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"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
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"Cookie": cookie
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}
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# -------------------------------------------------------------------------
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# 辅助函数：进度保存与读取
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# -------------------------------------------------------------------------
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def load_progress():
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if os.path.exists(progress_cache_file):
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try:
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with open(progress_cache_file, "r", encoding="utf-8") as f:
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return json.load(f)
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except:
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return {}
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return {}
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def save_progress(course_id, item_id, current_time, total_time, finished):
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data = load_progress()
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key = f"{course_id}_{item_id}"
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data[key] = {
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"current_time": current_time,
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"total_time": total_time,
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"finished": finished,
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"timestamp": time.time()
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}
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try:
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with open(progress_cache_file, "w", encoding="utf-8") as f:
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json.dump(data, f, indent=2)
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except Exception as e:
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print(f" [Warning] 保存进度失败: {e}")
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# -------------------------------------------------------------------------
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# 辅助函数：模拟刷课逻辑
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# -------------------------------------------------------------------------
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def get_video_duration(video_url):
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"""
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使用 ffprobe 获取视频时长
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"""
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try:
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cmd = [
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"ffprobe",
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"-v", "error",
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"-show_entries", "format=duration",
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"-of", "default=noprint_wrappers=1:nokey=1",
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video_url
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]
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# Run ffprobe
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result = subprocess.run(
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cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True, timeout=30)
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if result.returncode == 0:
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try:
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duration = float(result.stdout.strip())
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return duration
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except ValueError:
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print(f" [Error] ffprobe output invalid: {result.stdout}")
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return None
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else:
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print(f" [Error] ffprobe failed: {result.stderr}")
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return None
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except Exception as e:
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print(f" [Error] get_video_duration exception: {e}")
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return None
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def process_video(course_id, item_id, current_index=0, total_items=0):
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"""
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处理单个视频：
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1. 获取视频页，提取 config URL
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2. 请求 config XML，获取 userId, updStatusUrl, totalTime, historyId 等
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3. 循环发送心跳包，直到视频看完
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"""
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print(f"\n>>> 开始处理视频: CourseId={course_id}, ItemId={item_id}")
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if total_items > 0:
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print(f" 当前进度: 第 {current_index} 集 / 共 {total_items} 集")
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# 1. 请求视频播放页
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video_page_url = f"https://zjbc.cjnep.net/lms/web/course/view?id={course_id}&itemid={item_id}"
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try:
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resp = requests.get(video_page_url, headers=headers)
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resp.raise_for_status()
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except Exception as e:
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print(f" [Error] 无法访问视频页: {e}")
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return
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# 2. 提取 config URL
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# 示例: config: '/lms/web/course/startupxml?courseid=677&itemid=142573&historyid=5740083&is_subcourse=0'
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config_match = re.search(r"config:\s*'([^']+)'", resp.text)
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if not config_match:
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print(" [Error] 未找到 config URL，跳过此视频。")
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return
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config_path = config_match.group(1)
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config_url = "https://zjbc.cjnep.net" + config_path
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print(f" Config URL: {config_url}")
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# 3. 请求 XML 配置
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try:
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xml_resp = requests.get(config_url, headers=headers)
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xml_resp.raise_for_status()
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except Exception as e:
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print(f" [Error] 无法获取 XML 配置: {e}")
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return
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# 4. 解析 XML
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try:
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root = ET.fromstring(xml_resp.text)
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# 提取关键参数
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user_id = root.findtext("userId")
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upd_status_url = root.findtext("updStatusUrl")
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total_time_str = root.findtext("totalTime")
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history_id = root.findtext("historyId")
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finish_status = root.findtext("finish")
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sco_title = root.findtext("scoTitle")
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if sco_title:
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print(f" [课程名称] {sco_title}")
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# 尝试获取视频 URL
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video_url = None
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file_url_node = root.find("fileUrl")
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if file_url_node is not None:
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video_url = file_url_node.findtext("normal")
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# 如果 XML 里是相对路径，需要补全
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if upd_status_url and not upd_status_url.startswith("http"):
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upd_status_url = "https://zjbc.cjnep.net" + upd_status_url
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# 检查必要字段 (totalTime 除外)
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if not (user_id and upd_status_url and history_id):
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print(" [Error] XML 解析缺少关键字段 (userId/updStatusUrl/historyId)")
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return
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# 读取本地缓存
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local_progress = load_progress().get(f"{course_id}_{item_id}", {})
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local_finished = local_progress.get("finished", False)
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# 优先检查是否已完成，如果已完成则跳过获取时长（避免 ffprobe）
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if local_finished or finish_status == "true":
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print(
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f" [Skip] 视频已完成 (XML Finish: {finish_status}, Local Finish: {local_finished})")
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return
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# 获取时长
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total_time = 0.0
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if total_time_str:
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total_time = float(total_time_str)
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elif video_url:
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print(" [Info] XML 中未找到 totalTime，尝试通过 ffprobe 获取视频时长...")
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duration = get_video_duration(video_url)
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if duration:
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total_time = duration
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print(f" [Info] 获取到视频时长: {total_time}s")
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else:
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print(" [Error] 无法获取视频时长，跳过此视频")
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return
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else:
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print(" [Error] XML 中既无 totalTime 也无 videoUrl，无法继续")
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return
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print(
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f" [Info] UserId={user_id}, HistoryId={history_id}, TotalTime={total_time}")
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except ET.ParseError:
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print(" [Error] XML 解析失败")
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return
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# 5. 循环发送心跳
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# 初始进度：优先从本地缓存读取，其次从 XML 读取
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local_time = local_progress.get("current_time", 0.0)
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# 读取 XML 进度
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last_viewed_time_str = root.findtext("lastViewedTime")
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xml_time = float(last_viewed_time_str) if last_viewed_time_str else 0.0
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# 选取最大的进度
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current_time = max(local_time, xml_time)
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# 如果进度已达标，则跳过
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if current_time >= total_time:
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print(
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f" [Skip] 视频已完成 (Progress: {current_time}/{total_time})")
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return
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print(f" [Start] 当前进度: {current_time}s / {total_time}s")
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is_first = "true"
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while True:
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# 如果已经看完
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if current_time >= total_time:
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print(" [Done] 视频已看完。")
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# 发送最后一次 finished=1 的包
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send_heartbeat(upd_status_url, user_id, course_id, item_id, history_id,
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add_time=0, current_time=0, total_time=total_time,
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finished=1, first_update=is_first)
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save_progress(course_id, item_id, total_time, total_time, True)
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break
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# 模拟观看
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step = ADD_TIME
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# 如果剩余时间不足
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if current_time + step >= total_time:
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step = int(total_time - current_time) + 1 # 稍微多一点确保覆盖
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current_time = total_time
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finished_flag = 1
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post_current_time = 0 # 完成时传 0
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else:
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current_time += step
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finished_flag = 0
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post_current_time = current_time
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# 发送心跳
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success = send_heartbeat(upd_status_url, user_id, course_id, item_id, history_id,
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add_time=step, current_time=post_current_time, total_time=total_time,
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finished=finished_flag, first_update=is_first)
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if not success:
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print(" [Error] 心跳发送失败，停止当前视频。")
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break
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# 保存进度
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save_progress(course_id, item_id, current_time,
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total_time, finished_flag == 1)
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if finished_flag == 1:
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print(" [Done] 视频播放结束。")
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break
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is_first = "false"
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# 模拟等待
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print(
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f" [Progress] 进度更新: {current_time:.1f}/{total_time} (add {step}s)...")
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time.sleep(HEARTBEAT_INTERVAL)
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def send_heartbeat(url, user_id, course_id, sco_id, history_id, add_time, current_time, total_time, finished, first_update):
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"""
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发送单个心跳包，带重试机制
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"""
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has_check_three = "true" if first_update == "true" else "false"
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has_check_two = "false"
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try:
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if float(total_time) > 0 and float(current_time) > (float(total_time) / 2):
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has_check_two = "true"
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except:
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pass
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has_check_one = "true" if str(finished) == "1" else "false"
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payload = {
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"userId": user_id,
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"courseId": course_id,
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"scoId": sco_id,
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"historyId": history_id,
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"addTime": str(add_time),
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"totalTime": str(total_time),
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"finished": finished,
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"currentTime": str(current_time),
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"hasCheckOne": has_check_one,
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"hasCheckTwo": has_check_two,
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"hasCheckThree": has_check_three,
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"firstUpdate": first_update
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}
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max_retries = 5
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for attempt in range(max_retries):
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try:
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# 注意：这里使用 data=payload 发送 application/x-www-form-urlencoded
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resp = requests.post(
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url, data=payload, headers=headers, timeout=10)
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resp.raise_for_status()
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# 检查响应内容，有些服务器返回 XML 状态
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# <root><status>1</status></root>
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if "<status>1</status>" in resp.text:
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return True
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elif "<status>-1</status>" in resp.text:
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print(" [Warning] 服务器返回 status -1 (可能多端登录或异常)")
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return False
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return True
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except Exception as e:
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print(f" [Warning] 请求异常 (尝试 {attempt+1}/{max_retries}): {e}")
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if attempt < max_retries - 1:
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time.sleep(2) # 重试前等待
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else:
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print(" [Error] 重试次数耗尽，放弃本次心跳。")
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return False
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return False
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# -------------------------------------------------------------------------
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# 主程序逻辑
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# -------------------------------------------------------------------------
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print("\n" + "="*60)
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print("欢迎使用自动刷课脚本 v1.0")
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print("此脚本通过视频心跳请求模拟观看课程视频，以达到刷课目的。功耗极低")
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print("注意：请确保 Cookie 有效，且已安装 ffprobe")
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print(f"当前心跳间隔: {HEARTBEAT_INTERVAL}秒 (警告：请勿设置过低，以免封号)")
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print(f"每次进度增加: {ADD_TIME}秒")
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print("您需要安装ffmpeg工具集，确保ffprobe命令可用，可从https://ffmpeg.org/download.html 下载")
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print("脚本仅供学习交流使用，请勿用于商业用途！")
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print("作者：NCJOAQ & Github Compilot")
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print("="*60 + "\n")
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course_data = []
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# 1. Try to load existing items data
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if os.path.exists(items_cache_file) and os.path.getsize(items_cache_file) > 0:
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try:
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with open(items_cache_file, "r", encoding="utf-8") as f:
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data = json.load(f)
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if isinstance(data, list) and len(data) > 0 and isinstance(data[0], dict) and "courseId" in data[0]:
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print("检测到课程项目缓存文件且有效。")
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course_data = data
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except json.JSONDecodeError:
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print("课程项目缓存文件损坏，已忽略。")
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# 2. 如果没有缓存数据，则执行之前的抓取逻辑 (此处省略抓取代码，假设已有缓存或手动抓取)
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# 为了保持代码简洁，这里假设你已经运行过一次脚本生成了 course_items.json
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# 如果 course_data 为空，说明需要先生成缓存。
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if not course_data:
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print("未找到有效的课程数据缓存 (course_items.json)。")
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print("请先运行脚本生成缓存，或检查网络连接。")
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# --- 原有的抓取逻辑 (简化版) ---
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# (此处保留你之前的抓取代码，如果需要的话，可以把之前的抓取逻辑放回来)
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# ...
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# -----------------------------
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# 临时：如果没有数据就退出，提示用户
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# sys.exit(1)
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# 或者，为了完整性，保留之前的抓取逻辑：
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print("开始执行抓取流程...")
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# ... (这里可以粘贴之前的抓取代码，为了不让文件太长，我先假设你已经有了 json) ...
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# 如果你需要我把抓取代码也完整合并进来，请告诉我。
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# 这里为了演示，我把之前的抓取逻辑简单复原一下：
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course_ids = []
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# 尝试读取课程ID缓存
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if os.path.exists(cache_file) and os.path.getsize(cache_file) > 0:
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print(f"正在读取课程ID缓存: {cache_file}")
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try:
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with open(cache_file, "r", encoding="utf-8") as f:
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course_ids = json.load(f)
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except Exception as e:
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print(f"[Warning] 读取课程ID缓存失败: {e}")
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# 如果没有缓存，从网络获取
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if not course_ids:
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print("正在从服务器获取课程列表...")
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try:
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resp = requests.get(url, headers=headers)
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resp.raise_for_status()
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# 正则匹配课程ID
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course_ids = re.findall(
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r"window\.location\s*=\s*['\"]/lms/web/course/detail\?id=(\d+)['\"]", resp.text)
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if course_ids:
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print(f"成功获取到 {len(course_ids)} 门课程。")
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with open(cache_file, "w", encoding="utf-8") as f:
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json.dump(course_ids, f, indent=2)
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else:
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print("[Error] 未能获取到任何课程ID，请检查Cookie是否失效或页面结构变更。")
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except Exception as e:
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print(f"[Error] 获取课程列表请求失败: {e}")
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# 遍历课程获取视频Item ID
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if course_ids:
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print(f"开始获取每门课程的视频列表 (共 {len(course_ids)} 门)...")
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for index, cid in enumerate(course_ids):
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print(f"[{index+1}/{len(course_ids)}] 正在解析课程 ID: {cid} ...",
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end="", flush=True)
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try:
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detail_url = f"https://zjbc.cjnep.net/lms/web/course/detail?id={cid}"
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resp = requests.get(detail_url, headers=headers)
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resp.raise_for_status()
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# 提取 itemid
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item_ids = re.findall(r'[?&]itemid=(\d+)', resp.text)
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# 去重
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seen = set()
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unique_item_ids = [x for x in item_ids if not (
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x in seen or seen.add(x))]
|
||
|
||
course_data.append(
|
||
{"courseId": cid, "itemIds": unique_item_ids})
|
||
print(f" 发现 {len(unique_item_ids)} 个视频")
|
||
|
||
except Exception as e:
|
||
print(f"\n [Error] 获取课程 {cid} 详情失败: {e}")
|
||
|
||
# 避免请求过快
|
||
time.sleep(1)
|
||
|
||
# 保存最终结果
|
||
print(f"正在保存课程数据到 {items_cache_file} ...")
|
||
with open(items_cache_file, "w", encoding="utf-8") as f:
|
||
json.dump(course_data, f, indent=2)
|
||
print("课程数据抓取完成。")
|
||
else:
|
||
print("没有课程ID，跳过视频抓取步骤。")
|
||
|
||
|
||
# 3. 开始刷课
|
||
print(f"\n>>> 开始刷课任务，共 {len(course_data)} 门课程")
|
||
|
||
for course in course_data:
|
||
cid = course['courseId']
|
||
items = course['itemIds']
|
||
print(f"\n=== 正在处理课程 {cid}，共 {len(items)} 个视频 ===")
|
||
|
||
for idx, item_id in enumerate(items):
|
||
process_video(cid, item_id, current_index=idx +
|
||
1, total_items=len(items))
|
||
# 视频之间休息一下
|
||
time.sleep(2)
|
||
|
||
print("\n所有任务完成。")
|