# -*- coding: utf-8 -*-
import os
import sys
import argparse
import time
import re
import traceback
import option
import shutil
if sys.platform == 'win32':
os.system('chcp 65001')
parser = argparse.ArgumentParser()
parser.add_argument("-c", "--session-cookie", help="Session Cookie", required=False)
parser.add_argument("-y", "--ykt-host", help="RainClassroom Host", required=False, default="pro.yuketang.cn")
idm_sel_group = parser.add_mutually_exclusive_group()
idm_sel_group.add_argument("-i", "--idm", action="store_true", help="Use IDMan.exe")
idm_sel_group.add_argument("-ni", "--no-idm", action="store_true", help="Don't use IDMan.exe, implied when the system "
"is not Windows")
content_sel_group = parser.add_mutually_exclusive_group(required=True)
content_sel_group.add_argument("-da", "--download-all", action="store_true", help="Download all content without asking")
content_sel_group.add_argument("-dq", "--download-ask", action="store_true", help="Ask before downloading each course")
content_sel_group.add_argument("-ds", "--download-select", action="store_true", help="Select courses to download "
"before downloading")
parser.add_argument("-nh", "--no-hw-decoding", action="store_true", help="Don't use hardware encoding")
parser.add_argument("-nv", "--no-video", action="store_true", help="Don't Download Video")
parser.add_argument("-np", "--no-ppt", action="store_true", help="Don't Download PPT")
parser.add_argument("-npc", "--no-convert-ppt-to-pdf", action="store_true", help="Don't Convert PPT to PDF")
parser.add_argument("-npa", "--no-ppt-answer", action="store_true", help="Don't Store PPT Problem Answer")
parser.add_argument("-np2", "--no-ppt-type2", action="store_true", help="Don't Download Type 2 PPT (requires selenium)")
parser.add_argument("-cnf", "--course-name-filter", action="append", help="Filter Course Name", default=None)
parser.add_argument("-lnf", "--lesson-name-filter", action="append", help="Filter Lesson Name", default=None)
original_format_help = parser.format_help
def format_help():
return original_format_help() + """
requirements:
- Python >= 3.12
- requests
- websocket-client (qrcode login)
- qrcode (qrcode login)
- Pillow (Add answer to problem; Convert PPT to PDF)
- aria2c (Download files multi-threaded & resume support)
- ffmpeg with nvenc support (Concatenate video segments and convert to HEVC)
"""
parser.format_help = format_help
original_print_help = parser.print_help
def print_help(file=None):
original_print_help(file)
if sys.platform == 'win32':
print('\nYOU SHALL RUN THIS EXECUTABLE FROM POWERSHELL WITH ARGUMENT!!')
os.system('pause')
parser.print_help = print_help
args = parser.parse_args()
args.__setattr__('video', not args.no_video)
args.__setattr__('ppt', not args.no_ppt)
args.__setattr__('ppt_to_pdf', not args.no_convert_ppt_to_pdf)
args.__setattr__('ppt_problem_answer', not args.no_ppt_answer)
# Check for dependencies
try:
import requests
except ImportError:
print("requests is not installed. Please install it using 'pip install requests'", file=sys.stderr)
exit(1)
if args.session_cookie is None:
try:
import websocket
except ImportError:
print("websocket-client is not installed. Please install it using 'pip install websocket-client'",
file=sys.stderr)
exit(1)
try:
import qrcode
except ImportError:
print("qrcode is not installed. Please install it using 'pip install qrcode'", file=sys.stderr)
exit(1)
if args.ppt_to_pdf or args.ppt_problem_answer:
try:
import PIL
except ImportError:
print("PIL is not installed. Please install it using 'pip install pillow'", file=sys.stderr)
exit(1)
if not args.no_ppt_type2:
try:
import selenium
except ImportError:
print("selenium is not installed. Please install it using 'pip install selenium' or use -np2", file=sys.stderr)
exit(1)
if args.download_all:
download_type_flag = 1
elif args.download_ask:
download_type_flag = 0
elif args.download_select:
download_type_flag = 2
if sys.platform != 'win32':
print("Inferring --no-idm flag as the system is not Windows")
args.no_idm = True
if args.idm:
idm_flag = 1
elif args.no_idm:
idm_flag = 0
else:
idm_flag = option.ask_for_idm()
if idm_flag and shutil.which('IDMan.exe') is None:
print("IDMan.exe is not found. Please install IDM and add it to PATH, or specify '--no-idm' flag", file=sys.stderr)
exit(1)
if idm_flag and sys.platform != 'win32':
print("WARNING: Are you sure that you want to use IDM on a non-Windows system?", file=sys.stderr)
if args.no_hw_decoding:
hw_decoding_flag = 0
else:
hw_decoding_flag = 1
args.__setattr__("aria2c_path", "aria2c")
if shutil.which("aria2c") is None and os.path.exists("aria2c.exe"):
args.__setattr__("aria2c_path", os.path.join(os.getcwd(), "aria2c"))
print(f"aria2c is not found in PATH, using local binary at {args.aria2c_path}")
if not idm_flag:
if shutil.which(args.aria2c_path) is None:
print("aria2c is not found. Please install aria2 and add it to PATH, or use IDM instead", file=sys.stderr)
exit(1)
print("IDM is not enabled, aria2c will be used for downloading")
import requests
import json
# --- --- --- Section Init --- --- --- #
# Login to RainClassroom
userinfo = {}
rainclassroom_sess = requests.session()
YKT_HOST = args.ykt_host
DOWNLOAD_FOLDER = "data"
CACHE_FOLDER = "cache"
rainclassroom_sess.headers[
"User-Agent"] = ("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 "
"Safari/537.36 Edg/131.0.0.0")
os.makedirs(DOWNLOAD_FOLDER, exist_ok=True)
os.makedirs(CACHE_FOLDER, exist_ok=True)
# --- --- --- Section Load Session --- --- --- #
if args.session_cookie is not None:
rainclassroom_sess.cookies['sessionid'] = args.session_cookie
# --- --- --- Section Login --- --- --- #
else:
import websocket
import qrcode
def on_message(ws, message):
global userinfo
userinfo = json.loads(message)
if 'subscribe_status' in userinfo:
ws.close()
return
qr = qrcode.QRCode()
qr.add_data(userinfo["qrcode"])
# Flush screen first
print("\033c")
qr.print_ascii(out=sys.stdout)
print("请扫描二维码登录")
def on_error(ws, error):
print(error)
def on_open(ws):
ws.send(data=json.dumps({"op": "requestlogin", "role": "web", "version": 1.4, "type": "qrcode", "from": "web"}))
# websocket数据交互
ws = websocket.WebSocketApp(f"wss://{YKT_HOST}/wsapp/",
on_message=on_message,
on_error=on_error)
ws.on_open = on_open
ws.run_forever()
# 登录
req = rainclassroom_sess.get(f"https://{YKT_HOST}/v/course_meta/user_info")
rainclassroom_sess.post(f"https://{YKT_HOST}/pc/web_login",
data=json.dumps({'UserID': userinfo['UserID'], 'Auth': userinfo['Auth']}))
# Store session
with open(f"{DOWNLOAD_FOLDER}/session.txt", "a", encoding='utf-8') as f:
f.write("\n" + rainclassroom_sess.cookies['sessionid'] + "\n")
# --- --- --- Generic Error Handling --- --- --- #
class APIError(Exception):
pass
def check_response(r: dict):
if 'success' in r:
e = not r['success']
elif 'errcode' in r:
e = r['errcode'] != 0
elif 'code' in r:
e = r['code'] != 0
else:
print(json.dumps(r))
print("Unknown API return status")
e = False
if e:
print(json.dumps(r))
raise APIError()
# --- --- --- Section Get Course List --- --- --- #
# 获取自己的课程列表
shown_courses = rainclassroom_sess.get(f"https://{YKT_HOST}/v2/api/web/courses/list?identity=2").json()
check_response(shown_courses)
hidden_courses = rainclassroom_sess.get(f"https://{YKT_HOST}/v2/api/web/classroom_archive").json()
check_response(hidden_courses)
for course in hidden_courses['data']['classrooms']:
course['classroom_id'] = course['id']
courses = shown_courses['data']['list'] + hidden_courses['data']['classrooms']
if args.course_name_filter is not None:
courses = [c for c in courses if any(f in c['name'] for f in args.course_name_filter)]
# Show a list of courses and ask for selection
if args.download_select:
done = False
while not done:
print("Courses:")
for i, course in enumerate(courses):
print(f"{i + 1}. {course['course']['name']}({course['name']}) - {course['teacher']['name']}")
selection = input("Select courses to download (e.g. `1, 2, 3-5, 10`): ")
try:
indexes = []
for part in selection.split(","):
if "-" in part:
start, end = map(int, part.split("-"))
indexes.extend(range(start, end + 1))
else:
indexes.append(int(part))
selected_courses = [courses[i - 1] for i in indexes]
courses = selected_courses
download_type_flag = 1
done = True
except IndexError:
print(traceback.format_exc())
print("Invalid selection, please try again")
rainclassroom_sess.cookies['xtbz'] = 'ykt'
# --- --- --- Section Get Lesson List --- --- --- #
def get_lesson_list(course: dict, name_prefix: str = ""):
lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/v2/api/web/logs/learn/{course['classroom_id']}?actype=-1&page=0&offset=500&sort=-1").json()
check_response(lesson_data)
folder_name = f"{course['name']}-{course['teacher']['name']}"
folder_name = option.windows_filename_sanitizer(folder_name)
if idm_flag:
folder_name = folder_name.replace('/', '\\')
folder_name = re.sub(r'[“”]', '_', folder_name)
print('folder name would be:', folder_name)
# Rename old folder
if os.path.exists(f"{DOWNLOAD_FOLDER}/{course['name']}"):
os.rename(f"{DOWNLOAD_FOLDER}/{course['name']}", f"{DOWNLOAD_FOLDER}/{folder_name}")
if os.path.exists(f"{CACHE_FOLDER}/{course['name']}"):
os.rename(f"{CACHE_FOLDER}/{course['name']}", f"{CACHE_FOLDER}/{folder_name}")
os.makedirs(f"{DOWNLOAD_FOLDER}/{folder_name}", exist_ok=True)
os.makedirs(f"{CACHE_FOLDER}/{folder_name}", exist_ok=True)
name_prefix += folder_name.rstrip() + "/"
name_prefix = option.windows_filename_sanitizer(name_prefix)
if args.lesson_name_filter is not None:
lesson_data['data']['activities'] = [l for l in lesson_data['data']['activities'] if
args.lesson_name_filter in l['title']]
length = len(lesson_data['data']['activities'])
def parse_single_lesson(index: int, lesson: dict):
if lesson['type'] == 2:
print('Script type detected!')
download_lesson_video_type2(lesson, name_prefix + str(length - index))
elif lesson['type'] in [14, 3]:
print('Normal type detected!')
download_lesson_video(lesson, name_prefix + str(length - index))
elif lesson['type'] == 15:
print('MOOCv2 type detected!')
download_lesson_video_type15(lesson, name_prefix + str(length - index))
elif lesson['type'] == 17:
print('MOOCv1 type detected!')
download_lesson_video_type17(lesson, name_prefix + str(length - index))
if args.video:
failed_lessons = []
for index, lesson in enumerate(lesson_data['data']['activities']):
if not lesson['type'] in [2, 3, 14, 15, 17]:
continue
lesson['classroom_id'] = course['classroom_id']
# Lesson
try:
parse_single_lesson(index, lesson)
except Exception:
print(traceback.format_exc())
print(f"Failed to download video for {name_prefix} - {lesson['title']}", file=sys.stderr)
failed_lessons.append((index, lesson))
# TODO: FIX FAILURE BEHAVIOR
print('sbykt may not prepare all cold data at once, rescanning for missing ones')
for index, lesson in enumerate(lesson_data['data']['activities']):
if not lesson['type'] in [2, 3, 14, 15, 17]:
continue
lesson['classroom_id'] = course['classroom_id']
# Lesson
try:
parse_single_lesson(index, lesson)
except Exception:
print(traceback.format_exc())
print(f"Failed to download video for {name_prefix} - {lesson['title']}", file=sys.stderr)
failed_lessons.append((index, lesson))
# if len(failed_lessons) > 0:
# print('Retrying failed lessons')
#
# for retry_count in range(3):
# if len(failed_lessons) == 0:
# break
#
# print(f"Retry #{retry_count + 1}")
# still_failed_lessons = []
# for index, lesson in failed_lessons:
# try:
# parse_single_lesson(index, lesson)
# except Exception:
# print(traceback.format_exc())
# print(f"Failed to download video for {name_prefix} - {lesson['title']}", file=sys.stderr)
# still_failed_lessons.append((index, lesson))
#
# failed_lessons = still_failed_lessons
#
# if len(failed_lessons) > 0:
# with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
# for index, lesson in failed_lessons:
# f.write(f"Video for {name_prefix} - {lesson['title']}\n")
# f.write(json.dumps(lesson) + "\n\n\n")
#
# print(f"Video for {name_prefix} - {lesson['title']} failed to download", file=sys.stderr)
if args.ppt:
failed_lessons = []
for index, lesson in enumerate(lesson_data['data']['activities']):
lesson['classroom_id'] = course['classroom_id']
# Lesson
try:
if lesson['type'] == 2:
print('Script type detected!')
download_lesson_ppt_type2(lesson, name_prefix + str(length - index))
elif lesson['type'] in [14, 3]:
print('Normal type detected!')
download_lesson_ppt(lesson, name_prefix + str(length - index))
elif lesson['type'] in [15, 17]:
print('MOOC type has no PPT')
elif lesson['type'] in [6, 9]:
print('Announcement type has no PPT')
except Exception:
print(traceback.format_exc())
print(f"Failed to download PPT for {name_prefix} - {lesson['title']}", file=sys.stderr)
failed_lessons.append((index, lesson))
# TODO: FIX FAILURE BEHAVIOR
print('sbykt may not prepare all cold data at once, rescanning for missing ones')
for index, lesson in enumerate(lesson_data['data']['activities']):
lesson['classroom_id'] = course['classroom_id']
# Lesson
try:
if lesson['type'] == 2:
print('Script type detected!')
download_lesson_ppt_type2(lesson, name_prefix + str(length - index))
elif lesson['type'] in [14, 3]:
print('Normal type detected!')
download_lesson_ppt(lesson, name_prefix + str(length - index))
elif lesson['type'] in [15, 17]:
print('MOOC type has no PPT')
elif lesson['type'] in [6, 9]:
print('Announcement type has no PPT')
except Exception:
print(traceback.format_exc())
print(f"Failed to download PPT for {name_prefix} - {lesson['title']}", file=sys.stderr)
failed_lessons.append((index, lesson))
# if len(failed_lessons) > 0:
# print('Retrying failed lessons')
#
# for retry_count in range(3):
# if len(failed_lessons) == 0:
# break
#
# print(f"Retry #{retry_count + 1}")
# still_failed_lessons = []
# for index, lesson in failed_lessons:
# try:
# download_lesson_ppt(lesson, name_prefix + str(length - index))
# except Exception:
# print(traceback.format_exc())
# print(f"Failed to download PPT for {name_prefix} - {lesson['title']}", file=sys.stderr)
# still_failed_lessons.append((index, lesson))
#
# failed_lessons = still_failed_lessons
#
# if len(failed_lessons) > 0:
# with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
# for index, lesson in failed_lessons:
# f.write(f"PPT for {name_prefix} - {lesson['title']}\n")
# f.write(json.dumps(lesson) + "\n\n\n")
#
# print(f"PPT for {name_prefix} - {lesson['title']} failed to download", file=sys.stderr)
# --- --- --- Section Download Lesson Video --- --- --- #
from video_processing import download_segments_in_parallel, concatenate_segments
def download_lesson_video(lesson: dict, name_prefix: str = ""):
lesson_video_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/v3/lesson-summary/replay?lesson_id={lesson['courseware_id']}").json()
try:
check_response(lesson_video_data)
except APIError:
print('v3 protocol failed, falling back to v1')
fallback_flag = 1
lesson_video_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/v/lesson/get_lesson_replay_timeline/?lesson_id={lesson['courseware_id']}").json()
check_response(lesson_video_data)
print('v1 protocol detected!')
if 'live_timeline' not in lesson_video_data['data'] or len(lesson_video_data['data']['live_timeline']) == 0:
print(f"Skipping {name_prefix} - No Video", file=sys.stderr)
return
else:
fallback_flag = 0
if 'live' not in lesson_video_data['data']:
print(f"Skipping {name_prefix} - No Video", file=sys.stderr)
name_prefix += "-" + lesson['title'].rstrip()
name_prefix = option.windows_filename_sanitizer(name_prefix)
if idm_flag:
name_prefix = re.sub(r'[“”]', '_', name_prefix)
if os.path.exists(f"{DOWNLOAD_FOLDER}/{name_prefix}.mp4"):
print(f"Skipping {name_prefix} - Video already present")
time.sleep(0.25)
return
has_error = False
# Download segments in parallel
try:
download_segments_in_parallel(idm_flag, fallback_flag, CACHE_FOLDER, lesson_video_data, name_prefix)
except Exception:
print(traceback.format_exc())
print(f"Failed to download {name_prefix}", file=sys.stderr)
has_error = True
# Start concatenation if downloads were successful
if not has_error:
time.sleep(1)
if 'live' in lesson_video_data['data'] and len(lesson_video_data['data']['live']) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix,
len(lesson_video_data['data']['live']), hw_decoding_flag)
elif 'live_timeline' in lesson_video_data['data'] and len(lesson_video_data['data']['live_timeline']) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix,
len(lesson_video_data['data']['live_timeline']), hw_decoding_flag)
else:
print('concatenate cannot start due to previous failure')
else:
print('concatenate cannot start due to previous failure')
if has_error:
with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
f.write(f"{name_prefix}\n")
def download_lesson_video_type15(lesson: dict, name_prefix: str = ""):
mooc_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/c27/online_courseware/xty/kls/pub_news/{lesson['courseware_id']}/",
headers={
"Xtbz": "ykt",
"Classroom-Id": str(lesson['classroom_id'])
}
).json()
check_response(mooc_data)
for chapter in mooc_data['data']['content_info']:
chapter_name = chapter['name']
for orphan in chapter['leaf_list']:
orphan_title = orphan['title']
orphan_id = orphan['id']
has_error = False
name_prefix_orphan = name_prefix + chapter_name + " - " + orphan_title
name_prefix_orphan = option.windows_filename_sanitizer(name_prefix_orphan)
if idm_flag:
name_prefix_orphan = re.sub(r'[“”]', '_', name_prefix_orphan)
mooc_orphan_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/mooc-api/v1/lms/learn/leaf_info/{str(lesson['classroom_id'])}/{str(orphan_id)}/",
headers={
"Xtbz": "ykt",
"Classroom-Id": str(lesson['classroom_id'])
}
).json()
check_response(mooc_orphan_data)
if 'data' not in mooc_orphan_data or 'content_info' not in mooc_orphan_data['data']:
print('no media detected, skipping!')
continue
mooc_orphan_media_id = mooc_orphan_data['data']['content_info']['media']['ccid']
mooc_orphan_media_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/open/audiovideo/playurl?video_id={mooc_orphan_media_id}&provider=cc"
f"&is_single=0&format=json"
).json()
check_response(mooc_orphan_media_data)
quality_keys = list(
map(lambda x: (int(x[7:]), x), mooc_orphan_media_data['data']['playurl']['sources'].keys()))
quality_keys.sort(key=lambda x: x[0], reverse=True)
download_url_list = mooc_orphan_media_data['data']['playurl']['sources'][quality_keys[0][1]]
# print(download_url_list)
# Download segments in parallel
try:
download_segments_in_parallel(idm_flag, 2, CACHE_FOLDER, download_url_list, name_prefix_orphan)
except Exception:
print(traceback.format_exc())
print(f"Failed to download {name_prefix}", file=sys.stderr)
has_error = True
# Start concatenation if downloads were successful
if not has_error:
time.sleep(0.25)
if 'playurl' in mooc_orphan_media_data['data'] and len(download_url_list) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix_orphan,
len(download_url_list), hw_decoding_flag)
else:
print('concatenate cannot start due to previous failure')
else:
print('concatenate cannot start due to previous failure')
if has_error:
with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
f.write(f"{name_prefix}\n")
for section in chapter['section_list']:
section_name = section['name']
for lesson_d in section['leaf_list']:
lesson_name = lesson_d['title']
lesson_id = lesson_d['id']
has_error = False
name_prefix_lesson = name_prefix + chapter_name + " - " + section_name + " - " + lesson_name
name_prefix_lesson = option.windows_filename_sanitizer(name_prefix_lesson)
if idm_flag:
name_prefix_lesson = re.sub(r'[“”]', '_', name_prefix_lesson)
mooc_lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/mooc-api/v1/lms/learn/leaf_info/{str(lesson['classroom_id'])}/{str(lesson_id)}/",
headers={
"Xtbz": "ykt",
"Classroom-Id": str(lesson['classroom_id'])
}
).json()
check_response(mooc_lesson_data)
if 'data' not in mooc_lesson_data or 'content_info' not in mooc_lesson_data['data']:
print('no media detected, skipping!')
continue
mooc_media_id = mooc_lesson_data['data']['content_info']['media']['ccid']
mooc_media_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/open/audiovideo/playurl?video_id={mooc_media_id}&provider=cc&is_single=0"
f"&format=json"
).json()
check_response(mooc_media_data)
quality_keys = list(
map(lambda x: (int(x[7:]), x), mooc_media_data['data']['playurl']['sources'].keys()))
quality_keys.sort(key=lambda x: x[0], reverse=True)
download_url_list = mooc_media_data['data']['playurl']['sources'][quality_keys[0][1]]
# print(download_url_list)
# Download segments in parallel
try:
download_segments_in_parallel(idm_flag, 2, CACHE_FOLDER, download_url_list, name_prefix_lesson)
except Exception:
print(traceback.format_exc())
print(f"Failed to download {name_prefix}", file=sys.stderr)
has_error = True
# Start concatenation if downloads were successful
if not has_error:
time.sleep(1)
if 'playurl' in mooc_media_data['data'] and len(download_url_list) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix_lesson,
len(download_url_list), hw_decoding_flag)
else:
print('concatenate cannot start due to previous failure')
else:
print('concatenate cannot start due to previous failure')
if has_error:
with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
f.write(f"{name_prefix}\n")
def download_lesson_video_type17(lesson: dict, name_prefix: str = ""):
mooc_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/c27/online_courseware/xty/kls/pub_news/{lesson['courseware_id']}/",
headers={
"Xtbz": "ykt",
"Classroom-Id": str(lesson['classroom_id'])
}
).json()
check_response(mooc_data)
if 'name' not in mooc_data['data']['content_info'] or 'content_info' not in mooc_data['data']:
print('no media detected, skipping!')
return
only_lesson_name = mooc_data['data']['content_info']['name']
only_lesson_id = mooc_data['data']['content_info']['id']
has_error = False
name_prefix_lesson = name_prefix + only_lesson_name
name_prefix_lesson = option.windows_filename_sanitizer(name_prefix_lesson)
if idm_flag:
name_prefix_lesson = re.sub(r'[“”]', '_', name_prefix_lesson)
mooc_lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/mooc-api/v1/lms/learn/leaf_info/{str(lesson['classroom_id'])}/{str(only_lesson_id)}/",
headers={
"Xtbz": "ykt",
"Classroom-Id": str(lesson['classroom_id'])
}
).json()
check_response(mooc_lesson_data)
if 'data' not in mooc_lesson_data or 'content_info' not in mooc_lesson_data['data']:
print('no media detected, skipping!')
return
mooc_media_id = mooc_lesson_data['data']['content_info']['media']['ccid']
mooc_media_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/open/audiovideo/playurl?video_id={mooc_media_id}&provider=cc&is_single=0&format=json"
).json()
check_response(mooc_media_data)
quality_keys = list(map(lambda x: (int(x[7:]), x), mooc_media_data['data']['playurl']['sources'].keys()))
quality_keys.sort(key=lambda x: x[0], reverse=True)
download_url_list = mooc_media_data['data']['playurl']['sources'][quality_keys[0][1]]
# print(download_url_list)
# Download segments in parallel
try:
download_segments_in_parallel(idm_flag, 2, CACHE_FOLDER, download_url_list, name_prefix_lesson)
except Exception:
print(traceback.format_exc())
print(f"Failed to download {name_prefix}", file=sys.stderr)
has_error = True
# Start concatenation if downloads were successful
if not has_error:
time.sleep(1)
if 'playurl' in mooc_media_data['data'] and len(download_url_list) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix_lesson,
len(download_url_list), hw_decoding_flag)
else:
print('concatenate cannot start due to previous failure')
else:
print('concatenate cannot start due to previous failure')
if has_error:
with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
f.write(f"{name_prefix}\n")
def download_lesson_video_type2(lesson: dict, name_prefix: str = ""):
# "id": 6036907, "courseware_id": "1055476"
# https://pro.yuketang.cn/v2/api/web/cards/detlist/1055476?classroom_id=3058049
lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/v2/api/web/cards/detlist/{lesson['courseware_id']}?classroom_id={lesson['classroom_id']}").json()
check_response(lesson_data)
name_prefix += "-" + lesson_data['data']['Title'].strip()
name_prefix = option.windows_filename_sanitizer(name_prefix)
for slide in lesson_data['data']['Slides']:
slide_id = slide['PageIndex']
for shape in slide['Shapes']:
if shape['ShapeType'] == 1 and 'file_title' in shape:
file_title = shape['file_title']
quality_keys = list(map(lambda x: (int(x[7:]), x), shape['playurls'].keys()))
quality_keys.sort(key=lambda x: x[0], reverse=True)
download_url_list = shape['playurls'][quality_keys[0][1]]
name_prefix_shape = name_prefix + f" - {slide_id} - {file_title}"
name_prefix_shape = option.windows_filename_sanitizer(name_prefix_shape)
if idm_flag:
name_prefix_shape = re.sub(r'[“”]', '_', name_prefix_shape)
# Download segments in parallel
try:
download_segments_in_parallel(idm_flag, 2, CACHE_FOLDER, download_url_list, name_prefix_shape)
has_error = False
except Exception:
print(traceback.format_exc())
print(f"Failed to download {name_prefix}", file=sys.stderr)
has_error = True
# Start concatenation if downloads were successful
if not has_error:
time.sleep(1)
if 'playurl' in shape and len(download_url_list) > 0:
print(f"Concatenating {name_prefix}")
concatenate_segments(CACHE_FOLDER, DOWNLOAD_FOLDER, name_prefix_shape,
len(download_url_list), hw_decoding_flag)
else:
print('concatenate cannot start due to previous failure')
else:
print('concatenate cannot start due to previous failure')
if has_error:
with open(f"{DOWNLOAD_FOLDER}/error.log", "a") as f:
f.write(f"{name_prefix}\n")
from ppt_processing import download_ppt
def download_lesson_ppt(lesson: dict, name_prefix: str = ""):
name_prefix += "-" + lesson['title'].rstrip()
name_prefix = option.windows_filename_sanitizer(name_prefix)
lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/v3/lesson-summary/student?lesson_id={lesson['courseware_id']}").json()
try:
check_response(lesson_data)
except APIError:
print('v3 protocol failed, falling back to v1')
ppt_info = rainclassroom_sess.get(
f"https://{YKT_HOST}/v2/api/web/lessonafter/{lesson['courseware_id']}/presentation?classroom_id={lesson['classroom_id']}").json()
check_response(ppt_info)
print('v1 protocol detected!')
if 'id' not in ppt_info['data'][0]:
print(f"Skipping {name_prefix} - No PPT", file=sys.stderr)
return
for index, ppt in enumerate(ppt_info['data']):
# PPT
try:
ppt_raw_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/v2/api/web/lessonafter/presentation/{ppt['id']}?classroom_id={lesson['classroom_id']}").json()
check_response(ppt_raw_data)
download_ppt(1, args.ppt_problem_answer, args.ppt_to_pdf, CACHE_FOLDER, DOWNLOAD_FOLDER,
args.aria2c_path,
ppt_raw_data, name_prefix + f"-{index}")
except Exception:
print(traceback.format_exc())
print(f"Failed to download PPT {name_prefix} - {ppt['title']}", file=sys.stderr)
for index, ppt in enumerate(lesson_data['data']['presentations']):
# PPT
try:
ppt_raw_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/api/v3/lesson-summary/student/presentation?presentation_id={ppt['id']}&lesson_id={lesson['courseware_id']}").json()
check_response(ppt_raw_data)
download_ppt(3, args.ppt_problem_answer, args.ppt_to_pdf, CACHE_FOLDER, DOWNLOAD_FOLDER, args.aria2c_path,
ppt_raw_data, name_prefix + f"-{index}")
except Exception:
print(traceback.format_exc())
print(f"Failed to download PPT {name_prefix} - {ppt['title']}", file=sys.stderr)
def download_lesson_ppt_type2(lesson: dict, name_prefix: str = ""):
import selenium.webdriver
from selenium.webdriver.chrome.options import Options
lesson_data = rainclassroom_sess.get(
f"https://{YKT_HOST}/v2/api/web/cards/detlist/{lesson['courseware_id']}?classroom_id={lesson['classroom_id']}").json()
check_response(lesson_data)
name_prefix = option.windows_filename_sanitizer(name_prefix)[:name_prefix.rfind('/')]
ppt_name = lesson_data['data']['Title'] + '.pdf'
if os.path.exists(os.path.join(DOWNLOAD_FOLDER, name_prefix, ppt_name)):
print(f"Skipping {name_prefix}/{ppt_name} - PPT already present")
return
ppt_data = json.dumps(lesson_data['data']).replace("\\", "\\\\").replace("`", "\\`")
# Create a Selenium WebDriver and set localstorage.rain_print of YKT_HOST to ppt_data
# driver = selenium.webdriver.Chrome()
# driver.get(f"https://{YKT_HOST}/")
# driver.execute_script(f"localStorage.rain_print = `{ppt_data}`")
# # Navigate to https://{YKT_HOST}/web/print and print webpage to PDF
# driver.get(f"https://{YKT_HOST}/web/print")
# # Print to PDF without user's interaction
# driver.execute_script("window.print();")
chrome_options = Options()
chrome_options.add_argument('--kiosk-printing')
# chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')
prefs = {
'printing.print_preview_sticky_settings.appState': json.dumps({
'recentDestinations': [{
'id': 'Save as PDF',
'origin': 'local',
'account': '',
}],
'selectedDestinationId': 'Save as PDF',
'version': 2
}),
'savefile.default_directory': os.path.join(os.path.abspath(DOWNLOAD_FOLDER), name_prefix)
}
chrome_options.add_experimental_option('prefs', prefs)
driver = selenium.webdriver.Chrome(options=chrome_options)
driver.get(f"https://{YKT_HOST}/")
driver.execute_script(f"localStorage.rain_print = `{ppt_data}`")
driver.get(f"https://{YKT_HOST}/web/print")
time.sleep(3)
driver.execute_script("window.print();")
time.sleep(3)
driver.quit()
# --- --- --- Section Main --- --- --- #
print('successfully parsed account info!')
for course in courses:
skip_flag = 0
try:
print(course)
if not download_type_flag:
skip_flag = option.ask_for_input()
if skip_flag:
continue
else:
get_lesson_list(course)
else:
get_lesson_list(course)
except Exception:
print(traceback.format_exc())
print(f"Failed to parse {course['name']}", file=sys.stderr)
