Files
Scrapling/scrapling/engines/static.py
T
Karim shoair 178eed7533 feat/fix(Fetcher): Adding http3 support + Fix stealthy_headers
And some fixes here and there to the docs
2025-05-31 03:35:46 +03:00

955 lines
46 KiB
Python

from time import sleep as time_sleep
from asyncio import sleep as asyncio_sleep
from curl_cffi.requests.session import CurlError
from curl_cffi import CurlHttpVersion
from curl_cffi.requests.impersonate import DEFAULT_CHROME
from curl_cffi.requests import (
ProxySpec,
CookieTypes,
BrowserTypeLiteral,
Session as CurlSession,
AsyncSession as AsyncCurlSession,
)
from scrapling.core.utils import log
from scrapling.core._types import (
Dict,
Optional,
Tuple,
Union,
Mapping,
SUPPORTED_HTTP_METHODS,
Awaitable,
List,
Any,
)
from .toolbelt import (
Response,
generate_convincing_referer,
generate_headers,
ResponseFactory,
)
__default_useragent__ = generate_headers(browser_mode=False).get("User-Agent")
class FetcherSession:
"""
A context manager that provides configured Fetcher sessions.
When this manager is used in a 'with' or 'async with' block,
it yields a new session configured with the manager's defaults.
A single instance of this manager should ideally be used for one active
session at a time (or sequentially). Re-entering a context with the
same manager instance while a session is already active is disallowed.
"""
def __init__(
self,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
http3: Optional[bool] = False,
stealthy_headers: Optional[bool] = True,
proxies: Optional[Dict[str, str]] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
timeout: Optional[Union[int, float]] = 30,
headers: Optional[Dict[str, str]] = None,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
follow_redirects: bool = True,
max_redirects: int = 30,
verify: bool = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
adaptor_arguments: Optional[Dict] = None,
):
"""
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param timeout: Number of seconds to wait before timing out.
:param headers: Headers to include in the session with every request.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param adaptor_arguments: Arguments passed when creating the final Adaptor class.
"""
self.default_impersonate = impersonate
self.stealth = stealthy_headers
self.default_proxies = proxies or {}
self.default_proxy = proxy or None
self.default_proxy_auth = proxy_auth or None
self.default_timeout = timeout
self.default_headers = headers or {}
self.default_retries = retries
self.default_retry_delay = retry_delay
self.default_follow_redirects = follow_redirects
self.default_max_redirects = max_redirects
self.default_verify = verify
self.default_cert = cert
self.default_http3 = http3
self.adaptor_arguments = adaptor_arguments or {}
self._curl_session: Optional[CurlSession] = None
self._async_curl_session: Optional[AsyncCurlSession] = None
def _merge_request_args(self, **kwargs) -> Dict[str, Any]:
"""Merge request-specific arguments with default session arguments."""
url = kwargs.pop("url")
request_args = {}
if kwargs.pop("http3", False) or self.default_http3:
request_args["http_version"] = CurlHttpVersion.V3ONLY
if kwargs.get("impersonate"):
log.warning(
"The argument `http3` might cause errors if used with `impersonate` argument, try switching it off if you encounter any curl errors."
)
request_args.update(
{
"url": url,
"headers": self._headers_job(
url, kwargs.pop("headers"), kwargs.pop("stealth")
),
"proxies": kwargs.pop("proxies", self.default_proxies),
"proxy": kwargs.pop("proxy", self.default_proxy),
"proxy_auth": kwargs.pop("proxy_auth", self.default_proxy_auth),
"timeout": kwargs.pop("timeout", self.default_timeout),
"allow_redirects": kwargs.pop(
"follow_redirects", self.default_follow_redirects
),
"max_redirects": kwargs.pop(
"max_redirects", self.default_max_redirects
),
"verify": kwargs.pop("verify", self.default_verify),
"cert": kwargs.pop("cert", self.default_cert),
"impersonate": kwargs.pop("impersonate", self.default_impersonate),
**kwargs,
}
)
return request_args
def _headers_job(
self, url, headers: Optional[Dict], stealth: Optional[bool]
) -> Dict:
"""Adds useragent to headers if it doesn't exist, generates real headers and append it to current headers, and
finally generates a referer header that looks like if this request came from Google's search of the current URL's domain.
:param headers: Current headers in the request if the user passed any
:param stealth: Whether to enable the `stealthy_headers` argument to this request or not. If `None`, it defaults to the session default value.
:return: A dictionary of the new headers.
"""
headers = {**self.default_headers, **(headers or {})}
headers_keys = set(map(str.lower, headers.keys()))
if stealth:
extra_headers = generate_headers(browser_mode=False)
# Don't overwrite user-supplied headers
extra_headers = {
key: value
for key, value in extra_headers.items()
if key.lower() not in headers_keys
}
headers.update(extra_headers)
if "referer" not in headers_keys:
headers.update({"referer": generate_convincing_referer(url)})
elif "user-agent" not in headers_keys:
headers["User-Agent"] = __default_useragent__
log.debug(
f"Can't find useragent in headers so '{headers['User-Agent']}' was used."
)
return headers
def __enter__(self):
"""Creates and returns a new synchronous Fetcher Session"""
if self._curl_session:
raise RuntimeError(
"This FetcherSession instance already has an active synchronous session. "
"Create a new FetcherSession instance for a new independent session, "
"or use the current instance sequentially after the previous context has exited."
)
if (
self._async_curl_session
): # Prevent mixing if async is active from this instance
raise RuntimeError(
"This FetcherSession instance has an active asynchronous session. "
"Cannot enter a synchronous context simultaneously with the same manager instance."
)
self._curl_session = CurlSession()
return self
def __exit__(self, exc_type, exc_val, exc_tb):
"""Closes the active synchronous session managed by this instance, if any."""
if self._curl_session:
self._curl_session.close()
self._curl_session = None
async def __aenter__(self):
"""Creates and returns a new asynchronous Session."""
if self._async_curl_session:
raise RuntimeError(
"This FetcherSession instance already has an active asynchronous session. "
"Create a new FetcherSession instance for a new independent session, "
"or use the current instance sequentially after the previous context has exited."
)
if self._curl_session: # Prevent mixing if sync is active from this instance
raise RuntimeError(
"This FetcherSession instance has an active synchronous session. "
"Cannot enter an asynchronous context simultaneously with the same manager instance."
)
self._async_curl_session = AsyncCurlSession()
return self
async def __aexit__(self, exc_type, exc_val, exc_tb):
"""Closes the active asynchronous session managed by this instance, if any."""
if self._async_curl_session:
await self._async_curl_session.close()
self._async_curl_session = None
def __make_request(
self,
method: SUPPORTED_HTTP_METHODS,
request_args: Dict[str, Any],
max_retries: int,
retry_delay: int,
adaptor_arguments: Optional[Dict] = None,
) -> Response:
"""
Perform an HTTP request using the configured session.
:param method: HTTP method to be used, supported methods are ["GET", "POST", "PUT", "DELETE"]
:param url: Target URL for the request.
:param request_args: Arguments to be passed to the session's `request()` method.
:param max_retries: Maximum number of retries for the request.
:param retry_delay: Number of seconds to wait between retries.
:param adaptor_arguments: Arguments passed when creating the final Adaptor class.
:return: A `Response` object for synchronous requests or an awaitable for asynchronous.
"""
if self._curl_session:
for attempt in range(max_retries):
try:
response = self._curl_session.request(method, **request_args)
# response.raise_for_status() # Retry responses with a status code between 200-400
return ResponseFactory.from_http_request(
response, adaptor_arguments
)
except CurlError as e:
if attempt < max_retries - 1:
log.error(
f"Attempt {attempt + 1} failed: {e}. Retrying in {retry_delay} seconds..."
)
time_sleep(retry_delay)
else:
log.error(f"Failed after {max_retries} attempts: {e}")
raise # Raise the exception if all retries fail
raise RuntimeError("No active session available.")
async def __make_async_request(
self,
method: SUPPORTED_HTTP_METHODS,
request_args: Dict[str, Any],
max_retries: int,
retry_delay: int,
adaptor_arguments: Optional[Dict] = None,
) -> Response:
"""
Perform an HTTP request using the configured session.
:param method: HTTP method to be used, supported methods are ["GET", "POST", "PUT", "DELETE"]
:param url: Target URL for the request.
:param request_args: Arguments to be passed to the session's `request()` method.
:param max_retries: Maximum number of retries for the request.
:param retry_delay: Number of seconds to wait between retries.
:param adaptor_arguments: Arguments passed when creating the final Adaptor class.
:return: A `Response` object for synchronous requests or an awaitable for asynchronous.
"""
if self._async_curl_session:
for attempt in range(max_retries):
try:
response = await self._async_curl_session.request(
method, **request_args
)
# response.raise_for_status() # Retry responses with a status code between 200-400
return ResponseFactory.from_http_request(
response, adaptor_arguments
)
except CurlError as e:
if attempt < max_retries - 1:
log.error(
f"Attempt {attempt + 1} failed: {e}. Retrying in {retry_delay} seconds..."
)
await asyncio_sleep(retry_delay)
else:
log.error(f"Failed after {max_retries} attempts: {e}")
raise # Raise the exception if all retries fail
raise RuntimeError("No active session available.")
def __prepare_and_dispatch(
self,
method: SUPPORTED_HTTP_METHODS,
stealth: Optional[bool] = None,
**kwargs,
) -> Union[Response, Awaitable[Response]]:
"""
Internal dispatcher. Prepares arguments and calls sync or async request helper.
:param method: HTTP method to be used, supported methods are ["GET", "POST", "PUT", "DELETE"]
:param stealth: Whether to enable the `stealthy_headers` argument to this request or not. If `None`, it defaults to the session default value.
:param url: Target URL for the request.
:param kwargs: Additional request-specific arguments.
:return: A `Response` object for synchronous requests or an awaitable for asynchronous.
"""
stealth = self.stealth if stealth is None else stealth
adaptor_arguments = (
kwargs.pop("adaptor_arguments", {}) or self.adaptor_arguments
)
max_retries = kwargs.pop("retries", self.default_retries)
retry_delay = kwargs.pop("retry_delay", self.default_retry_delay)
request_args = self._merge_request_args(stealth=stealth, **kwargs)
if self._curl_session:
return self.__make_request(
method, request_args, max_retries, retry_delay, adaptor_arguments
)
elif self._async_curl_session:
# The returned value is a Coroutine
return self.__make_async_request(
method, request_args, max_retries, retry_delay, adaptor_arguments
)
raise RuntimeError("No active session available.")
def get(
self,
url: str,
params: Optional[Union[Dict, List, Tuple]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
http3: Optional[bool] = False,
stealthy_headers: Optional[bool] = True,
**kwargs,
) -> Union[Response, Awaitable[Response]]:
"""
Perform a GET request.
:param url: Target URL for the request.
:param params: Query string parameters for the request.
:param headers: Headers to include in the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the [`curl_cffi.requests.Session().request()`, `curl_cffi.requests.AsyncSession().request()`] method.
:return: A `Response` object or an awaitable for async.
"""
request_args = {
"url": url,
"params": params,
"headers": headers,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy": proxy,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"impersonate": impersonate,
"http3": http3,
**kwargs,
}
return self.__prepare_and_dispatch(
"GET", stealth=stealthy_headers, **request_args
)
def post(
self,
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
http3: Optional[bool] = False,
stealthy_headers: Optional[bool] = True,
**kwargs,
) -> Union[Response, Awaitable[Response]]:
"""
Perform a POST request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the [`curl_cffi.requests.Session().request()`, `curl_cffi.requests.AsyncSession().request()`] method.
:return: A `Response` object or an awaitable for async.
"""
request_args = {
"url": url,
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
return self.__prepare_and_dispatch(
"POST", stealth=stealthy_headers, **request_args
)
def put(
self,
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
http3: Optional[bool] = False,
stealthy_headers: Optional[bool] = True,
**kwargs,
) -> Union[Response, Awaitable[Response]]:
"""
Perform a PUT request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the [`curl_cffi.requests.Session().request()`, `curl_cffi.requests.AsyncSession().request()`] method.
:return: A `Response` object or an awaitable for async.
"""
request_args = {
"url": url,
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
return self.__prepare_and_dispatch(
"PUT", stealth=stealthy_headers, **request_args
)
def delete(
self,
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
http3: Optional[bool] = False,
stealthy_headers: Optional[bool] = True,
**kwargs,
) -> Union[Response, Awaitable[Response]]:
"""
Perform a DELETE request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the [`curl_cffi.requests.Session().request()`, `curl_cffi.requests.AsyncSession().request()`] method.
:return: A `Response` object or an awaitable for async.
"""
request_args = {
"url": url,
# Careful of sending a body in a DELETE request, it might cause some websites to reject the request as per https://www.rfc-editor.org/rfc/rfc7231#section-4.3.5,
# But some websites accept it, it depends on the implementation used.
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
return self.__prepare_and_dispatch(
"DELETE", stealth=stealthy_headers, **request_args
)
class FetcherClient(FetcherSession):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Using one session for all requests is faster than using stateless `curl_cffi.get`
self.__enter__ = None
self.__exit__ = None
self.__aenter__ = None
self.__aexit__ = None
self._curl_session = CurlSession()
class AsyncFetcherClient:
# Since curl_cffi doesn't support making async requests without sessions
# And using a single session for many requests at the same time in async doesn't sit well with curl_cffi.
# We do this
@staticmethod
async def get(
url: str,
params: Optional[Union[Dict, List, Tuple]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
stealthy_headers: Optional[bool] = True,
http3: Optional[bool] = False,
**kwargs,
) -> Response:
"""
Perform a GET request.
:param url: Target URL for the request.
:param params: Query string parameters for the request.
:param headers: Headers to include in the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the `curl_cffi.requests.AsyncSession().request()` method.
:return: An awaitable `Response` object.
"""
request_args = {
"url": url,
"params": params,
"headers": headers,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy": proxy,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"impersonate": impersonate,
"http3": http3,
**kwargs,
}
async with FetcherSession(stealthy_headers=stealthy_headers) as client:
return await client.get(**request_args)
@staticmethod
async def post(
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
stealthy_headers: Optional[bool] = True,
http3: Optional[bool] = False,
**kwargs,
) -> Response:
"""
Perform a POST request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the `curl_cffi.requests.AsyncSession().request()` method.
:return: An awaitable `Response` object.
"""
request_args = {
"url": url,
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
async with FetcherSession(stealthy_headers=stealthy_headers) as client:
return await client.post(**request_args)
@staticmethod
async def put(
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
stealthy_headers: Optional[bool] = True,
http3: Optional[bool] = False,
**kwargs,
) -> Response:
"""
Perform a PUT request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the `curl_cffi.requests.AsyncSession().request()` method.
:return: An awaitable `Response` object.
"""
request_args = {
"url": url,
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
async with FetcherSession(stealthy_headers=stealthy_headers) as client:
return await client.put(**request_args)
@staticmethod
async def delete(
url: str,
data: Optional[Union[Dict, str]] = None,
json: Optional[Union[Dict, List]] = None,
headers: Optional[Mapping[str, Optional[str]]] = None,
params: Optional[Union[Dict, List, Tuple]] = None,
cookies: Optional[CookieTypes] = None,
timeout: Optional[Union[int, float]] = 30,
follow_redirects: Optional[bool] = True,
max_redirects: Optional[int] = 30,
retries: Optional[int] = 3,
retry_delay: Optional[int] = 1,
proxies: Optional[ProxySpec] = None,
proxy: Optional[str] = None,
proxy_auth: Optional[Tuple[str, str]] = None,
auth: Optional[Tuple[str, str]] = None,
verify: Optional[bool] = True,
cert: Optional[Union[str, Tuple[str, str]]] = None,
impersonate: Optional[BrowserTypeLiteral] = DEFAULT_CHROME,
stealthy_headers: Optional[bool] = True,
http3: Optional[bool] = False,
**kwargs,
) -> Response:
"""
Perform a DELETE request.
:param url: Target URL for the request.
:param data: Form data to include in the request body.
:param json: A JSON serializable object to include in the body of the request.
:param headers: Headers to include in the request.
:param params: Query string parameters for the request.
:param cookies: Cookies to use in the request.
:param timeout: Number of seconds to wait before timing out.
:param follow_redirects: Whether to follow redirects. Defaults to True.
:param max_redirects: Maximum number of redirects. Default 30, use -1 for unlimited.
:param retries: Number of retry attempts. Defaults to 3.
:param retry_delay: Number of seconds to wait between retry attempts. Defaults to 1 second.
:param proxies: Dict of proxies to use. Format: {"http": proxy_url, "https": proxy_url}.
:param proxy: Proxy URL to use. Format: "http://username:password@localhost:8030".
Cannot be used together with the `proxies` parameter.
:param proxy_auth: HTTP basic auth for proxy, tuple of (username, password).
:param auth: HTTP basic auth tuple of (username, password). Only basic auth is supported.
:param verify: Whether to verify HTTPS certificates. Defaults to True.
:param cert: Tuple of (cert, key) filenames for the client certificate.
:param impersonate: Browser version to impersonate. Automatically defaults to the latest available Chrome version.
:param http3: Whether to use HTTP3. Defaults to False. It might be problematic if used it with `impersonate`.
:param stealthy_headers: If enabled (default), it creates and adds real browser headers. It also sets the referer header as if this request came from a Google search of URL's domain.
:param kwargs: Additional keyword arguments to pass to the `curl_cffi.requests.AsyncSession().request()` method.
:return: An awaitable `Response` object.
"""
request_args = {
"url": url,
# Careful of sending a body in a DELETE request, it might cause some websites to reject the request as per https://www.rfc-editor.org/rfc/rfc7231#section-4.3.5,
# But some websites accept it, it depends on the implementation used.
"data": data,
"json": json,
"headers": headers,
"params": params,
"cookies": cookies,
"timeout": timeout,
"retry_delay": retry_delay,
"proxy": proxy,
"impersonate": impersonate,
"allow_redirects": follow_redirects,
"max_redirects": max_redirects,
"retries": retries,
"proxies": proxies,
"proxy_auth": proxy_auth,
"auth": auth,
"verify": verify,
"cert": cert,
"http3": http3,
**kwargs,
}
async with FetcherSession(stealthy_headers=stealthy_headers) as client:
return await client.delete(**request_args)