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376
apps/SeleniumService/deltains_browser_manager.py
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376
apps/SeleniumService/deltains_browser_manager.py
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"""
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Browser manager for Delta Dental Ins - handles persistent profile, cookie
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save/restore (for Okta session-only cookies), and keeping browser alive.
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Tracks credentials to detect changes mid-session.
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"""
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import os
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import json
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import shutil
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import hashlib
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import threading
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import subprocess
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import time
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from selenium import webdriver
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from selenium.webdriver.chrome.service import Service
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from webdriver_manager.chrome import ChromeDriverManager
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if not os.environ.get("DISPLAY"):
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os.environ["DISPLAY"] = ":0"
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DELTAINS_DOMAIN = ".deltadentalins.com"
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OKTA_DOMAINS = [".okta.com", ".oktacdn.com"]
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class DeltaInsBrowserManager:
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"""
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Singleton that manages a persistent Chrome browser instance for Delta Dental Ins.
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- Uses --user-data-dir for persistent profile
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- Saves/restores Okta session cookies to survive browser restarts
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- Tracks credentials to detect changes mid-session
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"""
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_instance = None
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_lock = threading.Lock()
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def __new__(cls):
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with cls._lock:
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if cls._instance is None:
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cls._instance = super().__new__(cls)
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cls._instance._driver = None
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cls._instance.profile_dir = os.path.abspath("chrome_profile_deltains")
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cls._instance.download_dir = os.path.abspath("seleniumDownloads")
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cls._instance._credentials_file = os.path.join(cls._instance.profile_dir, ".last_credentials")
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cls._instance._cookies_file = os.path.join(cls._instance.profile_dir, ".saved_cookies.json")
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cls._instance._needs_session_clear = False
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os.makedirs(cls._instance.profile_dir, exist_ok=True)
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os.makedirs(cls._instance.download_dir, exist_ok=True)
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return cls._instance
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# ── Cookie save / restore ──────────────────────────────────────────
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def save_cookies(self):
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"""Save all browser cookies to a JSON file so they survive browser restart."""
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try:
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if not self._driver:
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return
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cookies = self._driver.get_cookies()
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if not cookies:
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return
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with open(self._cookies_file, "w") as f:
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json.dump(cookies, f)
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print(f"[DeltaIns BrowserManager] Saved {len(cookies)} cookies to disk")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Failed to save cookies: {e}")
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def restore_cookies(self):
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"""Restore saved cookies into the current browser session."""
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if not os.path.exists(self._cookies_file):
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print("[DeltaIns BrowserManager] No saved cookies file found")
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return False
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try:
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with open(self._cookies_file, "r") as f:
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cookies = json.load(f)
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if not cookies:
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print("[DeltaIns BrowserManager] Saved cookies file is empty")
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return False
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# Navigate to the DeltaIns domain first so we can set cookies for it
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try:
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self._driver.get("https://www.deltadentalins.com/favicon.ico")
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time.sleep(2)
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except Exception:
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self._driver.get("https://www.deltadentalins.com")
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time.sleep(3)
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restored = 0
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for cookie in cookies:
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try:
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# Remove problematic fields that Selenium doesn't accept
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for key in ["sameSite", "storeId", "hostOnly", "session"]:
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cookie.pop(key, None)
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# sameSite must be one of: Strict, Lax, None
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cookie["sameSite"] = "None"
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self._driver.add_cookie(cookie)
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restored += 1
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except Exception:
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pass
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print(f"[DeltaIns BrowserManager] Restored {restored}/{len(cookies)} cookies")
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return restored > 0
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Failed to restore cookies: {e}")
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return False
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def clear_saved_cookies(self):
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"""Delete the saved cookies file."""
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try:
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if os.path.exists(self._cookies_file):
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os.remove(self._cookies_file)
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print("[DeltaIns BrowserManager] Cleared saved cookies file")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Failed to clear saved cookies: {e}")
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# ── Session clear ──────────────────────────────────────────────────
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def clear_session_on_startup(self):
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"""
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Clear session cookies from Chrome profile on startup.
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This forces a fresh login after PC restart.
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"""
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print("[DeltaIns BrowserManager] Clearing session on startup...")
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try:
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if os.path.exists(self._credentials_file):
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os.remove(self._credentials_file)
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print("[DeltaIns BrowserManager] Cleared credentials tracking file")
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# Also clear saved cookies
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self.clear_saved_cookies()
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session_files = [
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"Cookies",
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"Cookies-journal",
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"Login Data",
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"Login Data-journal",
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"Web Data",
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"Web Data-journal",
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]
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for filename in session_files:
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filepath = os.path.join(self.profile_dir, "Default", filename)
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if os.path.exists(filepath):
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try:
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os.remove(filepath)
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print(f"[DeltaIns BrowserManager] Removed {filename}")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not remove {filename}: {e}")
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for filename in session_files:
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filepath = os.path.join(self.profile_dir, filename)
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if os.path.exists(filepath):
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try:
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os.remove(filepath)
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print(f"[DeltaIns BrowserManager] Removed root {filename}")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not remove root {filename}: {e}")
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session_storage_dir = os.path.join(self.profile_dir, "Default", "Session Storage")
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if os.path.exists(session_storage_dir):
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try:
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shutil.rmtree(session_storage_dir)
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print("[DeltaIns BrowserManager] Cleared Session Storage")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not clear Session Storage: {e}")
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local_storage_dir = os.path.join(self.profile_dir, "Default", "Local Storage")
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if os.path.exists(local_storage_dir):
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try:
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shutil.rmtree(local_storage_dir)
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print("[DeltaIns BrowserManager] Cleared Local Storage")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not clear Local Storage: {e}")
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indexeddb_dir = os.path.join(self.profile_dir, "Default", "IndexedDB")
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if os.path.exists(indexeddb_dir):
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try:
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shutil.rmtree(indexeddb_dir)
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print("[DeltaIns BrowserManager] Cleared IndexedDB")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not clear IndexedDB: {e}")
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cache_dirs = [
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os.path.join(self.profile_dir, "Default", "Cache"),
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os.path.join(self.profile_dir, "Default", "Code Cache"),
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os.path.join(self.profile_dir, "Default", "GPUCache"),
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os.path.join(self.profile_dir, "Default", "Service Worker"),
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os.path.join(self.profile_dir, "Cache"),
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os.path.join(self.profile_dir, "Code Cache"),
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os.path.join(self.profile_dir, "GPUCache"),
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os.path.join(self.profile_dir, "Service Worker"),
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os.path.join(self.profile_dir, "ShaderCache"),
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]
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for cache_dir in cache_dirs:
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if os.path.exists(cache_dir):
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try:
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shutil.rmtree(cache_dir)
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print(f"[DeltaIns BrowserManager] Cleared {os.path.basename(cache_dir)}")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Could not clear {os.path.basename(cache_dir)}: {e}")
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self._needs_session_clear = True
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print("[DeltaIns BrowserManager] Session cleared - will require fresh login")
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Error clearing session: {e}")
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# ── Credential tracking ────────────────────────────────────────────
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def _hash_credentials(self, username: str) -> str:
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return hashlib.sha256(username.encode()).hexdigest()[:16]
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def get_last_credentials_hash(self) -> str | None:
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try:
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if os.path.exists(self._credentials_file):
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with open(self._credentials_file, 'r') as f:
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return f.read().strip()
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except Exception:
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pass
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return None
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def save_credentials_hash(self, username: str):
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try:
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cred_hash = self._hash_credentials(username)
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with open(self._credentials_file, 'w') as f:
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f.write(cred_hash)
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Failed to save credentials hash: {e}")
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def credentials_changed(self, username: str) -> bool:
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last_hash = self.get_last_credentials_hash()
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if last_hash is None:
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return False
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current_hash = self._hash_credentials(username)
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changed = last_hash != current_hash
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if changed:
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print("[DeltaIns BrowserManager] Credentials changed - logout required")
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return changed
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def clear_credentials_hash(self):
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try:
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if os.path.exists(self._credentials_file):
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os.remove(self._credentials_file)
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except Exception as e:
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print(f"[DeltaIns BrowserManager] Failed to clear credentials hash: {e}")
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# ── Chrome process management ──────────────────────────────────────
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def _kill_existing_chrome_for_profile(self):
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try:
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result = subprocess.run(
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["pgrep", "-f", f"user-data-dir={self.profile_dir}"],
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capture_output=True, text=True
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)
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if result.stdout.strip():
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pids = result.stdout.strip().split('\n')
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for pid in pids:
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try:
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subprocess.run(["kill", "-9", pid], check=False)
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except:
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pass
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time.sleep(1)
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except Exception:
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pass
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for lock_file in ["SingletonLock", "SingletonSocket", "SingletonCookie"]:
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lock_path = os.path.join(self.profile_dir, lock_file)
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try:
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if os.path.islink(lock_path) or os.path.exists(lock_path):
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os.remove(lock_path)
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except:
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pass
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# ── Driver lifecycle ───────────────────────────────────────────────
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def get_driver(self, headless=False):
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with self._lock:
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need_cookie_restore = False
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if self._driver is None:
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print("[DeltaIns BrowserManager] Driver is None, creating new driver")
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self._kill_existing_chrome_for_profile()
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self._create_driver(headless)
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need_cookie_restore = True
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elif not self._is_alive():
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print("[DeltaIns BrowserManager] Driver not alive, recreating")
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# Save cookies from the dead session if possible (usually can't)
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self._kill_existing_chrome_for_profile()
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self._create_driver(headless)
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need_cookie_restore = True
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else:
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print("[DeltaIns BrowserManager] Reusing existing driver")
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if need_cookie_restore and os.path.exists(self._cookies_file):
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print("[DeltaIns BrowserManager] Restoring saved cookies into new browser...")
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self.restore_cookies()
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return self._driver
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def _is_alive(self):
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try:
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if self._driver is None:
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return False
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_ = self._driver.current_url
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return True
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except Exception:
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return False
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def _create_driver(self, headless=False):
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if self._driver:
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try:
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self._driver.quit()
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except:
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pass
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self._driver = None
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time.sleep(1)
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options = webdriver.ChromeOptions()
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if headless:
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options.add_argument("--headless")
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options.add_argument(f"--user-data-dir={self.profile_dir}")
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options.add_argument("--no-sandbox")
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options.add_argument("--disable-dev-shm-usage")
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options.add_argument("--disable-blink-features=AutomationControlled")
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options.add_experimental_option("excludeSwitches", ["enable-automation"])
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options.add_experimental_option("useAutomationExtension", False)
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options.add_argument("--disable-infobars")
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prefs = {
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"download.default_directory": self.download_dir,
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"plugins.always_open_pdf_externally": True,
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"download.prompt_for_download": False,
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"download.directory_upgrade": True,
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"credentials_enable_service": False,
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"profile.password_manager_enabled": False,
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"profile.password_manager_leak_detection": False,
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}
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options.add_experimental_option("prefs", prefs)
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service = Service(ChromeDriverManager().install())
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self._driver = webdriver.Chrome(service=service, options=options)
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self._driver.maximize_window()
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try:
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self._driver.execute_script("Object.defineProperty(navigator, 'webdriver', {get: () => undefined})")
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except Exception:
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pass
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self._needs_session_clear = False
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def quit_driver(self):
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with self._lock:
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if self._driver:
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try:
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self._driver.quit()
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except:
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pass
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self._driver = None
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self._kill_existing_chrome_for_profile()
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_manager = None
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def get_browser_manager():
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global _manager
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if _manager is None:
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_manager = DeltaInsBrowserManager()
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return _manager
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def clear_deltains_session_on_startup():
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"""Called by agent.py on startup to clear session."""
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manager = get_browser_manager()
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manager.clear_session_on_startup()
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