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import argparse
import json
import logging
import os
import requests
import sys
from binascii import unhexlify
parser = argparse.ArgumentParser()
parser.add_argument('cid', help='content id, &cid={...}. see url when reading a chapter')
parser.add_argument('-v', '--verbose', help='no progressive download logs on terminal', action="store_true")
args = parser.parse_args()
logging.basicConfig(format='[%(levelname)s] %(asctime)s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S', level=logging.INFO)
def start(url, headers):
meta = requests.get(url=url, headers=headers).json()
img_url = f'{url}/frames?enable_webp=true'
try:
cid_info = {
"TITLE": meta['data']['extra']['content']['title'],
"CHAPTER": meta['data']['result']['title']
}
except KeyError:
logging.error("Metadata malformed, check CID's validity")
sys.exit()
else:
print('{} - {}'.format(cid_info['TITLE'], cid_info['CHAPTER']))
undrm(img_url, headers, cid_info)
def undrm(url, headers, cid_info):
meta = requests.get(url=url, headers=headers).json()
print('Page count: {}'.format(len(meta['data']['result'])))
save_path = os.path.join('downloaded_chapters/{}/{}'.format(cid_info['TITLE'], cid_info['CHAPTER']))
if not os.path.exists(save_path):
os.makedirs(save_path)
print(f'Saving chapter to {save_path}')
for num, page in enumerate(meta['data']['result']):
if args.verbose:
logging.info(f'Downloading page {num+1}')
key = page['meta']['drm_hash']
file = requests.get(page['meta']['source_url'], headers=headers).content
pagination = str(num + 1) + '.webp'
if key is not None:
key = unhexlify(key[:16])
file = xor(file, key)
with open(f'{save_path}/{pagination}', 'wb') as f:
f.write(file)
logging.info('Done.')
def xor(bin, key):
retval = []
for idx, val in enumerate(bin):
retval.append(val ^ key[idx % len(key)])
return bytes(retval)
def main():
headers = {
'authority': 'comicwalker-api.nicomanga.jp',
'accept': '*/*',
'accept-language': 'en-US,en;q=0.9',
'cache-control': 'no-cache',
'origin': 'https://comic-walker.com',
'pragma': 'no-cache',
'referer': 'https://comic-walker.com/',
'sec-ch-ua': '" Not A;Brand";v="99", "Chromium";v="100", "Google Chrome";v="100"',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua-platform': '"Windows"',
'sec-fetch-Blowfisht': 'empty',
'sec-fetch-mode': 'cors',
'sec-fetch-site': 'cross-site',
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36',
}
content_url = f'https://comicwalker-api.nicomanga.jp/api/v1/comicwalker/episodes/{args.cid}'
start(content_url, headers)
if __name__ == "__main__":
main()
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