352 lines
12 KiB
Python
352 lines
12 KiB
Python
import time
|
|
from typing import List, Dict, Callable, Optional, Set
|
|
from urllib.parse import urlparse, urlunsplit, ParseResult
|
|
import logging
|
|
|
|
import threading
|
|
import requests
|
|
from tqdm import tqdm
|
|
|
|
from .rotating import RotatingProxy
|
|
from ..utils.config import main_settings
|
|
from ..utils.support_classes import DownloadResult
|
|
from ..objects import Target
|
|
|
|
|
|
class Connection:
|
|
def __init__(
|
|
self,
|
|
host: str,
|
|
proxies: List[dict] = None,
|
|
tries: int = (len(main_settings["proxies"]) + 1) * 4,
|
|
timeout: int = 7,
|
|
logger: logging.Logger = logging.getLogger("connection"),
|
|
header_values: Dict[str, str] = None,
|
|
accepted_response_codes: Set[int] = None,
|
|
semantic_not_found: bool = True,
|
|
sleep_after_404: float = 0.0,
|
|
heartbeat_interval = 0,
|
|
):
|
|
if proxies is None:
|
|
proxies = main_settings["proxies"]
|
|
if header_values is None:
|
|
header_values = dict()
|
|
|
|
self.HEADER_VALUES = header_values
|
|
|
|
self.LOGGER = logger
|
|
self.HOST = urlparse(host)
|
|
self.TRIES = tries
|
|
self.TIMEOUT = timeout
|
|
self.rotating_proxy = RotatingProxy(proxy_list=proxies)
|
|
|
|
self.ACCEPTED_RESPONSE_CODES = accepted_response_codes or {200}
|
|
self.SEMANTIC_NOT_FOUND = semantic_not_found
|
|
self.sleep_after_404 = sleep_after_404
|
|
|
|
self.session = requests.Session()
|
|
self.session.headers = self.get_header(**self.HEADER_VALUES)
|
|
self.session.proxies = self.rotating_proxy.current_proxy
|
|
|
|
self.session_is_occupied: bool = False
|
|
|
|
self.heartbeat_thread = None
|
|
self.heartbeat_interval = heartbeat_interval
|
|
|
|
@property
|
|
def user_agent(self) -> str:
|
|
return self.session.headers.get("user-agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36")
|
|
|
|
|
|
def start_heartbeat(self):
|
|
if self.heartbeat_interval <= 0:
|
|
self.LOGGER.warning(f"Can't start a heartbeat with {self.heartbeat_interval}s in between.")
|
|
|
|
self.heartbeat_thread = threading.Thread(target=self._heartbeat_loop, args=(self.heartbeat_interval, ), daemon=True)
|
|
self.heartbeat_thread.start()
|
|
|
|
def heartbeat_failed(self):
|
|
self.LOGGER.warning(f"I just died... (The heartbeat failed)")
|
|
|
|
|
|
def heartbeat(self):
|
|
# Your code to send heartbeat requests goes here
|
|
print("the hearth is beating, but it needs to be implemented ;-;\nFuck youuuu for setting heartbeat in the constructor to true, but not implementing the method Connection.hearbeat()")
|
|
|
|
def _heartbeat_loop(self, interval: float):
|
|
def heartbeat_wrapper():
|
|
self.session_is_occupied = True
|
|
self.LOGGER.debug(f"I am living. (sending a heartbeat)")
|
|
self.heartbeat()
|
|
self.LOGGER.debug(f"finished the heartbeat")
|
|
self.session_is_occupied = False
|
|
|
|
while True:
|
|
heartbeat_wrapper()
|
|
time.sleep(interval)
|
|
|
|
|
|
|
|
def base_url(self, url: ParseResult = None):
|
|
if url is None:
|
|
url = self.HOST
|
|
|
|
return urlunsplit((url.scheme, url.netloc, "", "", ""))
|
|
|
|
def get_header(self, **header_values) -> Dict[str, str]:
|
|
return {
|
|
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36",
|
|
"Connection": "keep-alive",
|
|
# "Host": self.HOST.netloc,
|
|
"Referer": self.base_url(),
|
|
**header_values
|
|
}
|
|
|
|
def rotate(self):
|
|
self.session.proxies = self.rotating_proxy.rotate()
|
|
|
|
def _update_headers(
|
|
self,
|
|
headers: Optional[dict],
|
|
refer_from_origin: bool,
|
|
url: ParseResult
|
|
) -> Dict[str, str]:
|
|
if headers is None:
|
|
headers = dict()
|
|
|
|
if not refer_from_origin:
|
|
headers["Referer"] = self.base_url(url=url)
|
|
|
|
return headers
|
|
|
|
def _request(
|
|
self,
|
|
request: Callable,
|
|
try_count: int,
|
|
accepted_response_codes: set,
|
|
url: str,
|
|
timeout: float,
|
|
headers: dict,
|
|
refer_from_origin: bool = True,
|
|
raw_url: bool = False,
|
|
sleep_after_404: float = None,
|
|
is_heartbeat: bool = False,
|
|
**kwargs
|
|
) -> Optional[requests.Response]:
|
|
if sleep_after_404 is None:
|
|
sleep_after_404 = self.sleep_after_404
|
|
if try_count >= self.TRIES:
|
|
return
|
|
|
|
if timeout is None:
|
|
timeout = self.TIMEOUT
|
|
|
|
parsed_url = urlparse(url)
|
|
|
|
headers = self._update_headers(
|
|
headers=headers,
|
|
refer_from_origin=refer_from_origin,
|
|
url=parsed_url
|
|
)
|
|
|
|
request_url = parsed_url.geturl() if not raw_url else url
|
|
|
|
connection_failed = False
|
|
try:
|
|
if self.session_is_occupied and not is_heartbeat:
|
|
self.LOGGER.info(f"Waiting for the heartbeat to finish.")
|
|
while self.session_is_occupied and not is_heartbeat:
|
|
pass
|
|
|
|
r: requests.Response = request(request_url, timeout=timeout, headers=headers, **kwargs)
|
|
|
|
if r.status_code in accepted_response_codes:
|
|
return r
|
|
|
|
if self.SEMANTIC_NOT_FOUND and r.status_code == 404:
|
|
self.LOGGER.warning(f"Couldn't find url (404): {request_url}")
|
|
return None
|
|
|
|
except requests.exceptions.Timeout:
|
|
self.LOGGER.warning(f"Request timed out at \"{request_url}\": ({try_count}-{self.TRIES})")
|
|
connection_failed = True
|
|
except requests.exceptions.ConnectionError:
|
|
self.LOGGER.warning(f"Couldn't connect to \"{request_url}\": ({try_count}-{self.TRIES})")
|
|
connection_failed = True
|
|
|
|
if not connection_failed:
|
|
self.LOGGER.warning(f"{self.HOST.netloc} responded wit {r.status_code} "
|
|
f"at {url}. ({try_count}-{self.TRIES})")
|
|
self.LOGGER.debug(r.content)
|
|
if sleep_after_404 != 0:
|
|
self.LOGGER.warning(f"Waiting for {sleep_after_404} seconds.")
|
|
time.sleep(sleep_after_404)
|
|
|
|
self.rotate()
|
|
|
|
if self.heartbeat_interval > 0 and self.heartbeat_thread is None:
|
|
self.start_heartbeat()
|
|
|
|
return self._request(
|
|
request=request,
|
|
try_count=try_count+1,
|
|
accepted_response_codes=accepted_response_codes,
|
|
url=url,
|
|
timeout=timeout,
|
|
headers=headers,
|
|
sleep_after_404=sleep_after_404,
|
|
is_heartbeat=is_heartbeat,
|
|
**kwargs
|
|
)
|
|
|
|
def get(
|
|
self,
|
|
url: str,
|
|
refer_from_origin: bool = True,
|
|
stream: bool = False,
|
|
accepted_response_codes: set = None,
|
|
timeout: float = None,
|
|
headers: dict = None,
|
|
raw_url: bool = False,
|
|
**kwargs
|
|
) -> Optional[requests.Response]:
|
|
if accepted_response_codes is None:
|
|
accepted_response_codes = self.ACCEPTED_RESPONSE_CODES
|
|
|
|
r = self._request(
|
|
request=self.session.get,
|
|
try_count=0,
|
|
accepted_response_codes=accepted_response_codes,
|
|
url=url,
|
|
timeout=timeout,
|
|
headers=headers,
|
|
raw_url=raw_url,
|
|
refer_from_origin=refer_from_origin,
|
|
stream=stream,
|
|
**kwargs
|
|
)
|
|
if r is None:
|
|
self.LOGGER.warning(f"Max attempts ({self.TRIES}) exceeded for: GET:{url}")
|
|
return r
|
|
|
|
def post(
|
|
self,
|
|
url: str,
|
|
json: dict = None,
|
|
refer_from_origin: bool = True,
|
|
stream: bool = False,
|
|
accepted_response_codes: set = None,
|
|
timeout: float = None,
|
|
headers: dict = None,
|
|
raw_url: bool = False,
|
|
**kwargs
|
|
) -> Optional[requests.Response]:
|
|
r = self._request(
|
|
request=self.session.post,
|
|
try_count=0,
|
|
accepted_response_codes=accepted_response_codes or self.ACCEPTED_RESPONSE_CODES,
|
|
url=url,
|
|
timeout=timeout,
|
|
headers=headers,
|
|
refer_from_origin=refer_from_origin,
|
|
raw_url=raw_url,
|
|
json=json,
|
|
stream=stream,
|
|
**kwargs
|
|
)
|
|
if r is None:
|
|
self.LOGGER.warning(f"Max attempts ({self.TRIES}) exceeded for: GET:{url}")
|
|
self.LOGGER.warning(f"payload: {json}")
|
|
return r
|
|
|
|
def stream_into(
|
|
self,
|
|
url: str,
|
|
target: Target,
|
|
description: str = "download",
|
|
refer_from_origin: bool = True,
|
|
accepted_response_codes: set = None,
|
|
timeout: float = None,
|
|
headers: dict = None,
|
|
raw_url: bool = False,
|
|
chunk_size: int = main_settings["chunk_size"],
|
|
try_count: int = 0,
|
|
progress: int = 0,
|
|
**kwargs
|
|
) -> DownloadResult:
|
|
|
|
if progress > 0:
|
|
if headers is None:
|
|
headers = dict()
|
|
headers["Range"] = f"bytes={target.size}-"
|
|
|
|
if accepted_response_codes is None:
|
|
accepted_response_codes = self.ACCEPTED_RESPONSE_CODES
|
|
|
|
r = self._request(
|
|
request=self.session.get,
|
|
try_count=0,
|
|
accepted_response_codes=accepted_response_codes,
|
|
url=url,
|
|
timeout=timeout,
|
|
headers=headers,
|
|
raw_url=raw_url,
|
|
refer_from_origin=refer_from_origin,
|
|
stream=True,
|
|
**kwargs
|
|
)
|
|
|
|
if r is None:
|
|
return DownloadResult(error_message=f"Could not establish connection to: {url}")
|
|
|
|
target.create_path()
|
|
total_size = int(r.headers.get('content-length'))
|
|
progress = 0
|
|
|
|
retry = False
|
|
|
|
with target.open("ab") as f:
|
|
"""
|
|
https://en.wikipedia.org/wiki/Kilobyte
|
|
> The internationally recommended unit symbol for the kilobyte is kB.
|
|
"""
|
|
|
|
with tqdm(total=total_size-target.size, unit='B', unit_scale=True, unit_divisor=1024, desc=description) as t:
|
|
try:
|
|
for chunk in r.iter_content(chunk_size=chunk_size):
|
|
size = f.write(chunk)
|
|
progress += size
|
|
t.update(size)
|
|
|
|
except requests.exceptions.ConnectionError:
|
|
if try_count >= self.TRIES:
|
|
self.LOGGER.warning(f"Stream timed out at \"{url}\": to many retries, aborting.")
|
|
return DownloadResult(error_message=f"Stream timed out from {url}, reducing the chunksize might help.")
|
|
|
|
self.LOGGER.warning(f"Stream timed out at \"{url}\": ({try_count}-{self.TRIES})")
|
|
retry = True
|
|
|
|
if total_size > progress:
|
|
retry = True
|
|
|
|
|
|
if retry:
|
|
self.LOGGER.warning(f"Retrying stream...")
|
|
accepted_response_codes.add(206)
|
|
return self.stream_into(
|
|
url = url,
|
|
target = target,
|
|
description = description,
|
|
try_count=try_count+1,
|
|
progress=progress,
|
|
accepted_response_codes=accepted_response_codes,
|
|
timeout=timeout,
|
|
headers=headers,
|
|
raw_url=raw_url,
|
|
refer_from_origin=refer_from_origin,
|
|
chunk_size=chunk_size,
|
|
**kwargs
|
|
)
|
|
|
|
return DownloadResult()
|