Karim shoair
145c03daff
- Moved most of the parser functions/files to the core package. - Converted tools file to a package and made separate files for similar functions. - Now all fetcher engines return a Response object - Instead of selecting an engine to use and passing config to it, we have separate fetcher classes so the user can choose what to use while importing. - I added a new custom fetcher so the user can create and use an engine. - More...
85 lines
3.2 KiB
Python
85 lines
3.2 KiB
Python
import logging
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from scrapling.core._types import Union, Callable, Optional, Dict
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from scrapling.engines.toolbelt import (
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Response,
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do_nothing,
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get_os_name,
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check_type_validity,
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generate_convincing_referer,
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)
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from camoufox.sync_api import Camoufox
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class CamoufoxEngine:
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def __init__(
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self, headless: Union[bool, str] = True,
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block_images: Optional[bool] = False,
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block_webrtc: Optional[bool] = False,
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network_idle: Optional[bool] = False,
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timeout: Optional[float] = 30000,
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page_action: Callable = do_nothing,
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wait_selector: Optional[str] = None,
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wait_selector_state: str = 'attached',
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adaptor_arguments: Dict = None
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):
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self.headless = headless
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self.block_images = bool(block_images)
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self.block_webrtc = bool(block_webrtc)
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self.network_idle = bool(network_idle)
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self.timeout = check_type_validity(timeout, [int, float], 30000)
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if callable(page_action):
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self.page_action = page_action
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else:
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self.page_action = do_nothing
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logging.error('[Ignored] Argument "page_action" must be callable')
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self.wait_selector = wait_selector
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self.wait_selector_state = wait_selector_state
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self.adaptor_arguments = adaptor_arguments if adaptor_arguments else {}
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def fetch(self, url: str) -> Response:
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with Camoufox(
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headless=self.headless,
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block_images=self.block_images, # Careful! it makes some websites doesn't finish loading at all like stackoverflow even in headful
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os=get_os_name(),
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block_webrtc=self.block_webrtc,
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) as browser:
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page = browser.new_page()
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page.set_default_navigation_timeout(self.timeout)
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page.set_default_timeout(self.timeout)
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res = page.goto(url, referer=generate_convincing_referer(url))
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page.wait_for_load_state(state="load")
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page.wait_for_load_state(state="domcontentloaded")
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if self.network_idle:
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page.wait_for_load_state('networkidle')
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page = self.page_action(page)
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if self.wait_selector and type(self.wait_selector) is str:
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waiter = page.locator(self.wait_selector)
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waiter.wait_for(state=self.wait_selector_state)
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content_type = res.headers.get('content-type', '')
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# Parse charset from content-type
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encoding = 'utf-8' # default encoding
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if 'charset=' in content_type.lower():
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encoding = content_type.lower().split('charset=')[-1].split(';')[0].strip()
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response = Response(
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url=res.url,
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text=res.text(),
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content=res.body(),
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status=res.status,
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reason=res.status_text,
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encoding=encoding,
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cookies={cookie['name']: cookie['value'] for cookie in page.context.cookies()},
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headers=res.all_headers(),
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request_headers=res.request.all_headers(),
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adaptor_arguments=self.adaptor_arguments
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)
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page.close()
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return response
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