|
from django.http import StreamingHttpResponse, HttpResponseBadRequest |
|
from core.settings import BASE_DIR |
|
from django_ratelimit.decorators import ratelimit |
|
from django.views.decorators.csrf import csrf_exempt |
|
from backend.module.utils import cloudflare_turnstile |
|
from backend.models.model_cache import SocketRequestChapterQueueCache, ComicStorageCache |
|
|
|
import os, json, sys |
|
|
|
@csrf_exempt |
|
@ratelimit(key='ip', rate='60/m') |
|
def download_chapter(request): |
|
if request.method != "POST": return HttpResponseBadRequest('Allowed POST request only!', status=400) |
|
token = request.META.get('HTTP_X_CLOUDFLARE_TURNSTILE_TOKEN') |
|
if not cloudflare_turnstile.check(token): return HttpResponseBadRequest('Cloudflare turnstile token not existed or expired!', status=511) |
|
try: |
|
payload = json.loads(request.body) |
|
source = payload.get("source") |
|
comic_id = payload.get("comic_id") |
|
chapter_id = payload.get("chapter_id") |
|
chapter_idx = payload.get("chapter_idx") |
|
options = payload.get("options") |
|
|
|
query_result = ComicStorageCache.objects.filter( |
|
source=source, |
|
comic_id=comic_id, |
|
chapter_id=chapter_id, |
|
chapter_idx=chapter_idx, |
|
colorize=options.get("colorize"), |
|
translate=options.get("translate").get("state"), |
|
target_lang = options.get("translate").get("target") if options.get("translate").get("state") else "" |
|
).first() |
|
|
|
|
|
file_path = query_result.file_path |
|
file_name = os.path.basename(file_path) |
|
chunk_size = 8192 |
|
|
|
def file_iterator(): |
|
with open(file_path, 'rb') as f: |
|
while chunk := f.read(chunk_size): |
|
yield chunk |
|
|
|
response = StreamingHttpResponse(file_iterator()) |
|
response['Content-Type'] = 'application/octet-stream' |
|
response['Content-Length'] = os.path.getsize(file_path) |
|
response['Content-Disposition'] = f'attachment; filename="{file_name}"' |
|
return response |
|
except Exception as e: |
|
exc_type, exc_obj, exc_tb = sys.exc_info() |
|
line_number = exc_tb.tb_lineno |
|
print(f"Error on line {line_number}: {e}") |
|
return HttpResponseBadRequest('Internal Error.', status=500) |
