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3.9 KiB
Python

"""BrowserManager: manages Playwright persistent Chrome profile contexts."""
from __future__ import annotations
from pathlib import Path
from typing import Optional
from loguru import logger
class BrowserManager:
"""Manages Playwright browser contexts using persistent Chrome profiles."""
def __init__(
self,
profile_name: str = "JobAgent",
headless: bool = True,
slow_mo: int = 0,
):
self.profile_name = profile_name
self.headless = headless
self.slow_mo = slow_mo
self._playwright = None
self._context = None
def open_context(
self,
profile_name: Optional[str] = None,
headless: Optional[bool] = None,
slow_mo: Optional[int] = None,
):
"""Open a persistent browser context. Returns the BrowserContext."""
from playwright.sync_api import sync_playwright
from gimme_job.utils.paths import chrome_profile_dir
name = profile_name or self.profile_name
hl = headless if headless is not None else self.headless
sm = slow_mo if slow_mo is not None else self.slow_mo
profile_path = chrome_profile_dir(name)
profile_path.mkdir(parents=True, exist_ok=True)
logger.info(f"Opening browser context: profile={name}, headless={hl}")
self._playwright = sync_playwright().start()
self._context = self._playwright.chromium.launch_persistent_context(
user_data_dir=str(profile_path),
headless=hl,
slow_mo=sm,
channel="chrome",
args=[
"--disable-blink-features=AutomationControlled",
"--no-sandbox",
"--disable-infobars",
"--disable-dev-shm-usage",
],
ignore_default_args=["--enable-automation"],
viewport={"width": 1280, "height": 900},
locale="en-US",
user_agent=(
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) "
"AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/134.0.0.0 Safari/537.36"
),
)
# Apply stealth patches to every new page
try:
from playwright_stealth import stealth_sync
self._context.add_init_script("""
Object.defineProperty(navigator, 'webdriver', { get: () => undefined });
""")
# stealth_sync works per-page; store reference for use in open_page()
self._stealth_fn = stealth_sync
except ImportError:
self._stealth_fn = None
return self._context
def new_page(self):
"""Open a new page with stealth applied."""
page = self._context.new_page()
if getattr(self, "_stealth_fn", None):
try:
self._stealth_fn(page)
except Exception as e:
logger.debug(f"Stealth apply failed: {e}")
return page
def close(self) -> None:
if self._context:
try:
self._context.close()
except Exception:
pass
self._context = None
if self._playwright:
try:
self._playwright.stop()
except Exception:
pass
self._playwright = None
def save_trace(self, trace_path: Path) -> None:
if self._context:
try:
self._context.tracing.stop(path=str(trace_path))
logger.debug(f"Trace saved: {trace_path}")
except Exception as e:
logger.warning(f"Failed to save trace: {e}")
def start_tracing(self) -> None:
if self._context:
try:
self._context.tracing.start(screenshots=True, snapshots=True)
except Exception as e:
logger.warning(f"Failed to start tracing: {e}")
def __enter__(self):
return self
def __exit__(self, *args):
self.close()