mycdp

import subprocess import time import os from mycdp import cdp # --- This quickstart requires a Chrome/Chromium browser executable in your PATH --- # Start Chrome in headless mode with remote debugging enabled on port 9222 # Adjust 'google-chrome' to 'chromium', 'chrome', or the full path to your browser chrome_executable = os.environ.get('CHROME_EXECUTABLE', 'google-chrome') remote_debugging_port = os.environ.get('REMOTE_DEBUGGING_PORT', '9222') chrome_process = None ws_url = f"ws://localhost:{remote_debugging_port}" session = None try: print(f"Launching {chrome_executable} with remote debugging on port {remote_debugging_port}...") # Note: stderr/stdout are redirected to PIPE to avoid polluting the console chrome_process = subprocess.Popen( [chrome_executable, '--headless=new', f'--remote-debugging-port={remote_debugging_port}'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True ) time.sleep(3) # Give Chrome a moment to start and open the debugging port # Connect to the running Chrome instance print(f"Connecting to Chrome at {ws_url}...") session = cdp.browser.connect(ws_url) print("Successfully connected to Chrome.") # Enable the Page domain to receive events and navigate cdp.page.enable(session) # Navigate to a URL target_url = "https://www.example.com" print(f"Navigating to {target_url}...") cdp.page.navigate(session, url=target_url) # Wait for the page to finish loading (load event) cdp.page.wait_for_load_event(session) print(f"Successfully navigated to {target_url}") # Execute a JavaScript expression to get the page title title_response = cdp.runtime.evaluate(session, expression="document.title") if title_response and title_response.result: print(f"Page title: {title_response.result.value}") # Example: Get all cookies cookies_response = cdp.storage.get_cookies(session) if cookies_response and cookies_response.cookies: print(f"Found {len(cookies_response.cookies)} cookies.") # for cookie in cookies_response.cookies: # print(f" - {cookie.name}: {cookie.value}") except Exception as e: print(f"An error occurred: {e}") # Print stderr if Chrome process is available and has output if chrome_process: try: _, stderr_output = chrome_process.communicate(timeout=1) if stderr_output: print("Chrome stderr:", stderr_output) except subprocess.TimeoutExpired: chrome_process.kill() print("Chrome stderr: Process timed out during communicate, killed.") finally: # Always close the CDP session and terminate the Chrome process if session: print("Closing CDP session...") cdp.browser.close(session) if chrome_process and chrome_process.poll() is None: print("Terminating Chrome process...") chrome_process.terminate() try: chrome_process.wait(timeout=5) except subprocess.TimeoutExpired: chrome_process.kill() print("Chrome process did not terminate gracefully, killed.") print("Quickstart finished.")