Add files via upload

3 files changed, 161 insertions, 0 deletions

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..9e1a6c3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,53 @@
+# comicwalker-dl

+

+A python tool to download free manga/comic from [ComicWalker](https://comic-walker.com/ "ComicWalker official website").

+

+The downloaded images are untouched and original from source, they are not modified in any way. flow:

+

+> image source (.webp) -> download process by python script -> output (.webp)

+

+## Requirements

+- python version 3

+- essential modules on `requirements.txt`, do `pip install -r requirements.txt`

+    - for all modules see inside the code

+

+## Usage

+this tool is a standalone python script, you can download the files as a zip/git clone, or just download `walker.py` and the requirements is enough.

+

+0. prep the requirements beforehand

+1. put `walker.py` in a folder of your choice

+2. open a terminal (.i.e CMD) in that folder

+3. see below for detailed usage

+

+all downloaded chapters are saved to `/downloaded_chapters/{title}/{chapter}`

+

+---

+```

+usage: walker.py [-h] [-cid CID] [-nolog]

+

+optional arguments:

+  -h, --help  show this help message and exit

+  -cid CID    content id, &cid={...}. see url when reading a chapter

+  -nolog      no progressive download logs on terminal

+```

+---

+

+to download a chapter, simply run the .py script by:

+

+```> python walker.py -cid [CID]```

+

+---

+

+example:

+

+```> python walker.py -cid KDCW_CW01000002010001_68```

+

+---

+

+add `-nolog` argument if you want clean terminal output during the progress.

+

+```> python walker.py -cid KDCW_CW01000002010001_68 -nolog```

+

+---

+

+feel free to modify the code as you wish.
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..9fe49be
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+coloredlogs

+requests

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