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import requests
import pickle
import argparse
import logging
import sys
from typing import *
import re
import os
wechat_user_agent = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116' \
' Safari/537.36 QBCore/4.0.1326.400 QQBrowser/9.0.2524.400 Mozilla/5.0 (Windows NT 6.1; WOW64) ' \
'AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2875.116 Safari/537.36 NetType/WIFI ' \
'MicroMessenger/7.0.20.1781(0x6700143B) WindowsWechat(0x63010200)'
root = logging.root
global_session = requests.session()
host_schemas = re.compile(r'^(https?://[^/]+)/.*$')
def configure_logging(verbose: bool = False) -> logging.Logger:
class ScreenOutputFilter(logging.Filter):
def filter(self, record: logging.LogRecord) -> int:
return record.levelno in (logging.DEBUG, logging.INFO)
fmt_str = '[%(asctime)s] [%(levelname)s] [%(name)s] (%(filename)s:%(lineno)d) %(message)s'
fmt = logging.Formatter(fmt_str)
stdout_handler = logging.StreamHandler(sys.stdout)
if verbose:
stdout_handler.setLevel(logging.DEBUG)
else:
stdout_handler.setLevel(logging.INFO)
stdout_handler.setFormatter(fmt)
stdout_handler.addFilter(ScreenOutputFilter())
stderr_handler = logging.StreamHandler(sys.stderr)
stderr_handler.setLevel(logging.WARNING)
stderr_handler.setFormatter(fmt)
root.addHandler(stdout_handler)
root.addHandler(stderr_handler)
root.setLevel(logging.DEBUG)
return root
def parse_args(args=None):
parser = argparse.ArgumentParser()
parser.add_argument('--mid', required=True, type=int, help='MID from MyProfile response')
parser.add_argument('--save_chapter_file', type=str, default='chapter_id.pkl',
help='A pickle file storing the finished chapter IDs to prevent redundant request')
parser.add_argument('--deploy_webpage_path', type=str, default='/var/www/html/youth_study.html',
help='Path for deploying the finished page, used for screenshotting')
parser.add_argument('--verbose', action='store_true', default=False, help='Log verbosely')
return parser.parse_args(args)
def generate_webpage(study_page: str, title: str, deploy_path: str):
study_url_pattern = re.compile(r'^(https?://h5\.cyol\.com/special/daxuexi/[^/]+/)(?:m|index)\.html$')
page_match = re.match(study_url_pattern, study_page)
assert page_match is not None, 'Unrecognized page %s' % study_page
url_prefix = page_match.group(1)
finished_img_url = url_prefix + 'images/end.jpg'
root.info('Testing end image: %s', finished_img_url)
_http_get(finished_img_url, url_prefix + 'css/index.css')
root.info('Test OK')
data = f"""
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>{title}</title>
</head>
<body style="margin: 0;">
<div style="background-image: url({finished_img_url}); position: absolute; background-size: 100% 100%; width: 100%;
height: 100%;">
</div>
</body>
</html>"""
with open(deploy_path, 'w') as f:
f.write(data)
root.info('HTML file generated to %s', deploy_path)
def _get_origin_from_referer(referer: str) -> str:
match = re.search(host_schemas, referer)
if match is None:
raise ValueError('%s does not match the URL scheme', referer)
return match.group(1)
def _merge_dict(origin: Dict[str, Any], default: Dict[str, Any]) -> Dict[str, Any]:
ret = origin.copy()
for key in default:
if key not in origin:
ret[key] = default[key]
return ret
def _http_ops(method, url, referer, params, headers, retries, timeout, ensure_http_ok, **kwargs):
default_header = {'User-Agent': wechat_user_agent, 'Referer': referer, 'Origin': _get_origin_from_referer(referer)}
get_header = _merge_dict(headers or {}, default_header)
last_ex = None
while retries > 0:
try:
resp = method(url, params=params, headers=get_header, timeout=timeout, **kwargs)
if ensure_http_ok and not resp.ok:
raise ValueError('HTTP Request failed with status code %d' % resp.status_code)
return resp
except Exception as ex:
ex_type = type(ex)
root.warning('HTTP Request "%s" failed: Exception %s.%s: %s', url, ex_type.__module__, ex_type.__name__,
str(ex))
last_ex = ex
retries -= 1
ex_type = type(last_ex)
root.error('HTTP Request "%s" failed: Max retry exceeded. Last exception: %s.%s: %s', url, ex_type.__module__,
ex_type.__name__, str(last_ex))
raise last_ex
def _http_get(url: str, referer: str, params: Optional[Dict[str, Any]] = None, headers: Optional[Dict[str, Any]] = None,
retries: int = 5, timeout: float = 20, ensure_http_ok: bool = True) -> requests.Response:
root.debug('HTTP GET: %s with Referer: %s', url, referer)
return _http_ops(global_session.get, url, referer, params, headers, retries, timeout, ensure_http_ok)
def _http_post_url_encoded(url: str, referer: str, data: Optional[Dict[str, Any]] = None,
params: Optional[Dict[str, Any]] = None, headers: Optional[Dict[str, Any]] = None,
retries: int = 5, timeout: float = 20, ensure_http_ok: bool = True) -> requests.Response:
root.debug('HTTP POST: %s with Referer: %s', url, referer)
data = data or {}
return _http_ops(global_session.post, url, referer, params, headers, retries, timeout, ensure_http_ok, data=data)
def do_study(mid: int, chapter_file: str) -> Tuple[str, str]:
root.info('Do the fucking study')
root.info('Current mid: %d', mid)
resp = _http_get('https://tuanapi.12355.net/questionnaire/getYouthLearningUrl?mid=%d' % mid,
'https://tuan.12355.net/wechat/index.html')
root.debug(resp.text)
url = resp.json()['youthLearningUrl']
sign_pattern = re.compile(r'sign=([^&]*)')
sign_match = re.search(sign_pattern, url)
assert sign_match is not None, 'Failed to match sign from url %s' % url
sign = sign_match.group(1)
litemall_header = {'X-Litemall-Token': '', 'X-Litemall-IdentiFication': 'young'}
resp = _http_post_url_encoded('https://youthstudy.12355.net/apih5/api/user/get', 'https://youtustudy.12355.net/h5/',
headers=litemall_header, data={'sign': sign})
root.debug(resp.text)
token = resp.json()['data']['entity']['token']
litemall_header['X-Litemall-Token'] = token
resp = _http_get('https://youthstudy.12355.net/apih5/api/young/chapter/new', 'https://youtustudy.12355.net/h5/',
headers=litemall_header)
root.debug(resp.text)
new_chapter = resp.json()
if os.path.isfile(chapter_file):
with open(chapter_file, 'rb') as f:
chapters = pickle.load(f)
else:
chapters = dict()
chapter_id = new_chapter['data']['entity']['id']
chapter_name = new_chapter['data']['entity']['name']
chapter_url = new_chapter['data']['entity']['url']
if chapter_id in chapters:
chapter_info = chapters[chapter_id]
root.info('Returned cached chapter, ID: %s, Name: %s, URL: %s', chapter_id, chapter_info[0], chapter_info[1])
return chapter_info
chapters[chapter_id] = chapter_name, chapter_url
resp = _http_post_url_encoded('https://youthstudy.12355.net/apih5/api/young/course/chapter/saveHistory',
'https://youthstudy.12355.net/h5/', data={'chapterId': chapter_id},
headers=litemall_header)
root.debug(resp.text)
with open(chapter_file, 'wb') as f:
pickle.dump(chapters, f)
return chapter_name, chapter_url
def main():
args = parse_args()
configure_logging(args.verbose)
try:
finished_img = do_study(args.mid, args.save_chapter_file)
generate_webpage(finished_img[1], finished_img[0], args.deploy_webpage_path)
except Exception as ex:
root.critical('Process exit with exception %s', str(ex), exc_info=ex, stack_info=True)
if __name__ == '__main__':
main()
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