1 files changed, 106 insertions, 0 deletions
diff --git a/walker.py b/walker.py
new file mode 100644
index 0000000..6febfb2
--- /dev/null
+++ b/walker.py
@@ -0,0 +1,106 @@
+import argparse
+import coloredlogs
+import json
+import logging
+import os
+import requests
+import sys
+
+from binascii import unhexlify
+
+os.system('cls||clear')
+
+print('COMICWALKER-DL\n')
+
+coloredlogs.install(fmt='%(asctime)s,%(msecs)03d - %(levelname)s - %(message)s')
+
+parser = argparse.ArgumentParser()
+parser.add_argument('-cid', help='content id, &cid={...}. see url when reading a chapter')
+parser.add_argument('-nolog', help='no progressive download logs on terminal', action="store_true")
+args = parser.parse_args(args=None if sys.argv[1:] else ['--help'])
+
+if args.cid == None:
+    parser.print_help()
+    sys.exit()
+
+def start(url, headers):
+    meta = json.loads(requests.get(url=url, headers=headers).content)
+    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 = json.loads(requests.get(url=url, headers=headers).content)
+
+    print('Page count: {}\n'.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}\n')
+
+    for page in range(1, len(meta['data']['result']) + 1):
+
+        if args.nolog:
+            if page == 1:
+                logging.info('DL in progress...')
+        else:
+            logging.info('Progress: page ' + str(page))
+
+        key = unhexlify(meta['data']['result'][page-1]['meta']['drm_hash'][:16])
+        enc = requests.get(meta['data']['result'][page-1]['meta']['source_url'], headers=headers).content
+        pagination = str(page) + '.webp'
+
+        with open(f'{save_path}\\{pagination}', 'wb') as f:
+            f.write(xor(enc, key))
+    
+    logging.info('Done.')
+
+def xor(bin, key):
+    retval = []
+    
+    for i in range(len(bin)):
+        retval.append(bin[i] ^ key[i % 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()
+\ No newline at end of file