def Chrome(headless=True, agent=None, proxy=None):
import requests, subprocess, base64
try: requests.get(f'http://localhost:9222', timeout=.1)
except: subprocess.Popen(['chrome', f'--remote-debugging-port={9222}',
*([f'--user-agent={agent}'] if agent else []),
*([f'--proxy-server={proxy}'] if proxy else []),
*(['--headless=new'] if headless else []),
'--disable-web-security', '--disable-translate',
'--ignore-certificate-errors', '--remote-allow-origins=*',
'--disable-backgrounding-occluded-windows',])
browser = requests.get(f'http://localhost:9222/json/version').json()['webSocketDebuggerUrl']
def new_page(self):
def send(url, request):
import websocket, json; ws = websocket.create_connection(url)
try: ws.send(json.dumps(request)); return json.loads(ws.recv())
finally: ws.close()
page = 'ws://localhost:9222/devtools/page/' + (targetId := send(browser,
dict(id=1, method='Target.createTarget',
params=dict(url='about:blank', newWindow=True))
)['result']['targetId'])
def evaluate(self, javascript):
try: return (res := self('Runtime.evaluate',
expression=javascript, returnByValue=True)['result'])['value']
except: raise Exception(res)
def wait_element(self, selector, timeout=30, check_interval=0.5):
import time; start_time = time.time()
while time.time() - start_time < timeout:
if self.evaluate(
f"document.querySelector('{selector}') ? true : false"):
return
time.sleep(check_interval)
raise TimeoutError(f"Element '{selector}' not found within {timeout} seconds")
def cookies(self, cookies=None):
if cookies is None: return self('Network.getAllCookies')['cookies']
self('Network.clearBrowserCookies')
for cookie in cookies: self('Network.setCookie', **cookie)
def screenshot(self):
from IPython.display import HTML
display(HTML(f'<img src="data:image/png;base64,{self('Page.captureScreenshot')['data']}">'))
def goto(self, url):
self('Page.navigate', url=url if '://' in url else f'https://{url}')
while self.evaluate('document.readyState') != 'complete':
self.sleep(0.1)
return True
return type('', (), dict(__call__=lambda _, method, **params:
send(page, {"id": 1, "method": method, "params": params})['result'],
goto=goto,
close=lambda self: self('Target.closeTarget', targetId=targetId)['success'],
sleep=lambda _, seconds: __import__('time').sleep(seconds),
evaluate=evaluate,
wait_element=wait_element,
cookies=cookies,
screenshot=screenshot,
source=lambda self: self.evaluate('document.documentElement.outerHTML'),
))()
return type('', (), dict(new_page=new_page))()
