Files
Scrapling/scrapling/engines/pw.py
T
2024-10-31 02:11:33 +03:00

210 lines
11 KiB
Python

import json
import logging
from scrapling._types import Union, Callable, Optional, List, Dict
from .tools import check_type_validity, generate_headers, js_bypass_path, construct_websocket_url, generate_convincing_referer
# Disable loading these resources for speed
DEFAULT_DISABLED_RESOURCES = ['beacon', 'csp_report', 'font', 'image', 'imageset', 'media', 'object', 'texttrack', 'stylesheet', 'websocket']
DEFAULT_STEALTH_FLAGS = [
# Explanation: https://peter.sh/experiments/chromium-command-line-switches/
# Generally this will make the browser faster and less detectable
'--incognito', '--accept-lang=en-US', '--lang=en-US', '--no-pings', '--mute-audio', '--no-first-run', '--no-default-browser-check', '--disable-cloud-import',
'--disable-gesture-typing', '--disable-offer-store-unmasked-wallet-cards', '--disable-offer-upload-credit-cards', '--disable-print-preview', '--disable-voice-input',
'--disable-wake-on-wifi', '--disable-cookie-encryption', '--ignore-gpu-blocklist', '--enable-async-dns', '--enable-simple-cache-backend', '--enable-tcp-fast-open',
'--prerender-from-omnibox=disabled', '--enable-web-bluetooth', '--disable-features=AudioServiceOutOfProcess,IsolateOrigins,site-per-process,TranslateUI,BlinkGenPropertyTrees',
'--aggressive-cache-discard', '--disable-ipc-flooding-protection', '--disable-blink-features=AutomationControlled', '--test-type',
'--enable-features=NetworkService,NetworkServiceInProcess,TrustTokens,TrustTokensAlwaysAllowIssuance',
'--disable-breakpad', '--disable-component-update', '--disable-domain-reliability', '--disable-sync', '--disable-client-side-phishing-detection',
'--disable-hang-monitor', '--disable-popup-blocking', '--disable-prompt-on-repost', '--metrics-recording-only', '--safebrowsing-disable-auto-update', '--password-store=basic',
'--autoplay-policy=no-user-gesture-required', '--use-mock-keychain', '--force-webrtc-ip-handling-policy=disable_non_proxied_udp',
'--webrtc-ip-handling-policy=disable_non_proxied_udp', '--disable-session-crashed-bubble', '--disable-crash-reporter', '--disable-dev-shm-usage', '--force-color-profile=srgb',
'--disable-translate', '--disable-background-networking', '--disable-background-timer-throttling', '--disable-backgrounding-occluded-windows', '--disable-infobars',
'--hide-scrollbars', '--disable-renderer-backgrounding', '--font-render-hinting=none', '--disable-logging', '--enable-surface-synchronization',
'--run-all-compositor-stages-before-draw', '--disable-threaded-animation', '--disable-threaded-scrolling', '--disable-checker-imaging',
'--disable-new-content-rendering-timeout', '--disable-image-animation-resync', '--disable-partial-raster',
'--blink-settings=primaryHoverType=2,availableHoverTypes=2,primaryPointerType=4,availablePointerTypes=4',
'--disable-layer-tree-host-memory-pressure',
'--window-position=0,0',
'--disable-features=site-per-process',
'--disable-default-apps',
'--disable-component-extensions-with-background-pages',
'--disable-extensions',
# "--disable-reading-from-canvas", # For Firefox
'--start-maximized' # For headless check bypass
]
def _do_nothing(page):
# Anything
return page
class PlaywrightEngine:
def __init__(
self, headless: Union[bool, str] = True,
disable_resources: Optional[List] = None,
useragent: Optional[str] = None,
network_idle: Optional[bool] = False,
timeout: Optional[float] = 30000,
page_action: Callable = _do_nothing,
wait_selector: Optional[str] = None,
wait_selector_state: Optional[str] = 'attached',
stealth: bool = False,
hide_canvas: bool = True,
disable_webgl: bool = False,
cdp_url: Optional[str] = None,
nstbrowser_mode: bool = False,
nstbrowser_config: Optional[Dict] = None,
):
self.headless = headless
self.disable_resources = disable_resources
self.network_idle = bool(network_idle)
self.stealth = bool(stealth)
self.hide_canvas = bool(hide_canvas)
self.disable_webgl = bool(disable_webgl)
self.cdp_url = cdp_url
self.useragent = useragent
self.timeout = check_type_validity(timeout, [int, float], 30000)
if callable(page_action):
self.page_action = page_action
else:
self.page_action = _do_nothing
logging.error('[Ignored] Argument "page_action" must be callable')
self.wait_selector = wait_selector
self.wait_selector_state = wait_selector_state
self.nstbrowser_mode = bool(nstbrowser_mode)
self.nstbrowser_config = nstbrowser_config
def _cdp_url_logic(self, flags: Optional[dict] = None):
cdp_url = self.cdp_url
if self.nstbrowser_mode:
if self.nstbrowser_config and type(self.nstbrowser_config) is Dict:
config = self.nstbrowser_config
else:
# Defaulting to the docker mode, token doesn't matter in it as it's passed for the container
query = {
"once": True,
"headless": True,
"autoClose": True,
"fingerprint": {
"flags": {
"timezone": "BasedOnIp",
"screen": "Custom"
},
"platform": 'linux', # support: windows, mac, linux
"kernel": 'chromium', # only support: chromium
"kernelMilestone": '128',
"hardwareConcurrency": 8,
"deviceMemory": 8,
},
}
if flags:
query.update({
"args": dict(zip(flags, [''] * len(flags))), # browser args should be a dictionary
})
config = {
'config': json.dumps(query),
# 'token': ''
}
cdp_url = construct_websocket_url(cdp_url, config)
return cdp_url
def fetch(self, url):
if not self.stealth:
from playwright.sync_api import sync_playwright
else:
from rebrowser_playwright.sync_api import sync_playwright
with sync_playwright() as p:
# Handle the UserAgent early
if self.useragent:
extra_headers = {}
useragent = self.useragent
else:
extra_headers = generate_headers(browser_mode=True)
useragent = extra_headers.get('User-Agent')
# Prepare the flags before diving
flags = DEFAULT_STEALTH_FLAGS
if self.hide_canvas:
flags += ['--fingerprinting-canvas-image-data-noise']
if self.disable_webgl:
flags += ['--disable-webgl', '--disable-webgl-image-chromium', '--disable-webgl2']
# Creating the browser
if self.cdp_url:
cdp_url = self._cdp_url_logic(flags if self.stealth else None)
browser = p.chromium.connect_over_cdp(endpoint_url=cdp_url)
else:
if self.stealth:
browser = p.chromium.launch(headless=self.headless, args=flags, ignore_default_args=['--enable-automation'], chromium_sandbox=True)
else:
browser = p.chromium.launch(headless=self.headless, ignore_default_args=['--enable-automation'])
# Creating the context
if self.stealth:
context = browser.new_context(
locale='en-US',
is_mobile=False,
has_touch=False,
color_scheme='dark', # Bypasses the 'prefersLightColor' check in creepjs
user_agent=useragent,
device_scale_factor=2,
# I'm thinking about disabling it to rest from all Service Workers headache but let's keep it as it is for now
service_workers="allow",
ignore_https_errors=True,
extra_http_headers=extra_headers,
screen={"width": 1920, "height": 1080},
viewport={"width": 1920, "height": 1080},
permissions=["geolocation", 'notifications'],
)
else:
context = browser.new_context(
color_scheme='dark',
user_agent=useragent,
device_scale_factor=2,
extra_http_headers=extra_headers
)
# Finally we are in business
page = context.new_page()
page.set_default_navigation_timeout(self.timeout)
page.set_default_timeout(self.timeout)
if self.stealth:
# Basic bypasses nothing fancy as I'm still working on it
# But with adding these bypasses to the above config, it bypasses many online tests like
# https://bot.sannysoft.com/
# https://kaliiiiiiiiii.github.io/brotector/
# https://pixelscan.net/
# https://iphey.com/
# https://www.browserscan.net/bot-detection <== this one also checks for the CDP runtime fingerprint
# https://arh.antoinevastel.com/bots/areyouheadless/
# https://prescience-data.github.io/execution-monitor.html
page.add_init_script(path=js_bypass_path('webdriver_fully.js'))
page.add_init_script(path=js_bypass_path('window_chrome.js'))
page.add_init_script(path=js_bypass_path('navigator_plugins.js'))
page.add_init_script(path=js_bypass_path('pdf_viewer.js'))
page.add_init_script(path=js_bypass_path('notification_permission.js'))
page.add_init_script(path=js_bypass_path('screen_props.js'))
page.add_init_script(path=js_bypass_path('playwright_fingerprint.js'))
page.goto(url, referer=generate_convincing_referer(url) if self.stealth else None)
page.wait_for_load_state(state="load")
page.wait_for_load_state(state="domcontentloaded")
if self.network_idle:
page.wait_for_load_state('networkidle')
page = self.page_action(page)
if self.wait_selector and type(self.wait_selector) is str:
waiter = page.locator(self.wait_selector)
waiter.wait_for(state=self.wait_selector_state)
html = page.content()
page.close()
return html