SmartUp Developer
c7b33983d6
- AuthCaptureDialog: real WebSocket for binary JPEG frame stream (no polling) - Pointer drag: mousedown/mousemove/mouseup events for slider-captcha - CDP capture starts at session creation, caches headers in session.captured_headers - Ephemeral profile dir deleted on session close (shutil.rmtree) - Candidate types unified: bearer_token / cookie / api_key / credential - Frontend handleAuthCaptureSelect maps all 4 types to correct form fields
430 lines
17 KiB
Python
430 lines
17 KiB
Python
"""Managed Playwright browser sessions for custom pages."""
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from __future__ import annotations
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import asyncio
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import logging
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import re
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import time
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Any, Optional
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from urllib.parse import urlparse
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from uuid import uuid4
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from app.config import get_settings
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logger = logging.getLogger(__name__)
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class BrowserDependencyError(RuntimeError):
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"""Raised when Playwright or its browser runtime is unavailable."""
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class BrowserSessionError(RuntimeError):
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"""Raised when an existing browser session can no longer be used."""
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@dataclass
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class BrowserSession:
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id: str
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custom_page_id: int
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profile_key: str
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context: Any
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page: Any
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lock: asyncio.Lock
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cdp_session: Any = None
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captured_headers: list[dict] = None # auth headers from CDP
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class BrowserSessionService:
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def __init__(self) -> None:
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self._playwright: Optional[Any] = None
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self._sessions: dict[str, BrowserSession] = {}
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self._profiles: dict[str, str] = {}
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self._lock = asyncio.Lock()
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async def create(
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self,
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custom_page_id: int,
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url: str,
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width: int = 1280,
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height: int = 720,
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login_config: Optional[dict[str, Any]] = None,
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) -> BrowserSession:
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if not url.startswith(("http://", "https://")):
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raise ValueError("Only http/https URLs are allowed")
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width = max(320, min(width, 2560))
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height = max(240, min(height, 1600))
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async with self._lock:
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await self._ensure_playwright()
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profile_key = self._profile_key(custom_page_id, url)
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existing_id = self._profiles.get(profile_key)
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existing = self._sessions.get(existing_id or "")
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if existing and not existing.page.is_closed():
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async with existing.lock:
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await existing.page.set_viewport_size({"width": width, "height": height})
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if existing.page.url == "about:blank":
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await existing.page.goto(url, wait_until="domcontentloaded", timeout=45000)
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await self._autofill_login(existing.page, login_config)
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await self._reset_page_zoom(existing)
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return existing
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if existing_id:
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self._profiles.pop(profile_key, None)
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context = await self._playwright.chromium.launch_persistent_context(
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str(self._profile_dir(profile_key)),
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headless=get_settings().browser_headless,
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viewport={"width": width, "height": height},
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args=["--no-sandbox", "--disable-dev-shm-usage"],
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)
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page = context.pages[0] if context.pages else await context.new_page()
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session = BrowserSession(
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id=uuid4().hex,
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custom_page_id=custom_page_id,
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profile_key=profile_key,
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context=context,
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page=page,
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lock=asyncio.Lock(),
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)
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self._sessions[session.id] = session
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self._profiles[profile_key] = session.id
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try:
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await page.goto(url, wait_until="domcontentloaded", timeout=45000)
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await self._autofill_login(page, login_config)
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await self._reset_page_zoom(session)
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except Exception:
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await self.close(session.id)
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raise
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return session
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async def screenshot(self, session_id: str) -> bytes:
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session = self._get(session_id)
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async with session.lock:
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self._ensure_open(session)
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return await session.page.screenshot(type="jpeg", quality=65, full_page=False)
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async def event(
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self,
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session_id: str,
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event_type: str,
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payload: dict[str, Any],
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*,
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include_state: bool = True,
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) -> dict[str, Any] | None:
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session = self._get(session_id)
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async with session.lock:
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self._ensure_open(session)
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page = session.page
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if event_type == "click":
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await page.mouse.click(float(payload["x"]), float(payload["y"]), button=payload.get("button", "left"))
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elif event_type == "dblclick":
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await page.mouse.dblclick(float(payload["x"]), float(payload["y"]), button=payload.get("button", "left"))
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elif event_type == "mousemove":
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await page.mouse.move(float(payload["x"]), float(payload["y"]))
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elif event_type == "mousedown":
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await page.mouse.move(float(payload["x"]), float(payload["y"]))
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await page.mouse.down(button=payload.get("button", "left"))
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elif event_type == "mouseup":
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await page.mouse.move(float(payload["x"]), float(payload["y"]))
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await page.mouse.up(button=payload.get("button", "left"))
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elif event_type == "type":
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text = str(payload.get("text", ""))
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if text:
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await page.keyboard.type(text)
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elif event_type == "key":
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key = str(payload.get("key", ""))
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if key:
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await page.keyboard.press(key)
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elif event_type == "scroll":
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if payload.get("x") is not None and payload.get("y") is not None:
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await page.mouse.move(float(payload["x"]), float(payload["y"]))
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await page.mouse.wheel(float(payload.get("delta_x", 0)), float(payload.get("delta_y", 0)))
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elif event_type == "reload":
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await page.reload(wait_until="domcontentloaded", timeout=45000)
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elif event_type == "back":
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await page.go_back(wait_until="domcontentloaded", timeout=45000)
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elif event_type == "forward":
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await page.go_forward(wait_until="domcontentloaded", timeout=45000)
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elif event_type == "resize":
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width = max(320, min(int(payload.get("width", 1280)), 2560))
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height = max(240, min(int(payload.get("height", 720)), 1600))
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await page.set_viewport_size({"width": width, "height": height})
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else:
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raise ValueError("Unsupported browser event")
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if not include_state:
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return None
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return await self._session_state(session)
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async def selected_text(self, session_id: str) -> str:
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session = self._get(session_id)
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async with session.lock:
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self._ensure_open(session)
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value = await session.page.evaluate("() => window.getSelection()?.toString() || ''")
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return str(value or "")
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async def close(self, session_id: str) -> None:
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session = self._discard_session(session_id)
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if not session:
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return
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# Detach CDP session if active
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if session.cdp_session:
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try:
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await session.cdp_session.detach()
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except Exception:
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pass
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try:
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await session.context.close()
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except Exception:
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pass
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# Clean up ephemeral (auth-capture) profile directories
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if session.profile_key and session.profile_key.startswith("auth-capture-"):
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profile_dir = self._profile_dir(session.profile_key)
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import shutil
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try:
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shutil.rmtree(profile_dir, ignore_errors=True)
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except Exception:
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pass
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async def shutdown(self) -> None:
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sessions = list(self._sessions)
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for session_id in sessions:
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await self.close(session_id)
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if self._playwright:
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await self._playwright.stop()
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self._playwright = None
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async def state(self, session_id: str) -> dict[str, Any]:
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session = self._get(session_id)
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async with session.lock:
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self._ensure_open(session)
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return await self._session_state(session)
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async def _session_state(self, session: BrowserSession) -> dict[str, Any]:
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return {
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"id": session.id,
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"custom_page_id": session.custom_page_id,
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"url": session.page.url,
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"title": await session.page.title(),
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}
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async def _ensure_playwright(self) -> None:
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if self._playwright:
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return
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try:
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from playwright.async_api import async_playwright
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except ImportError as exc:
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raise BrowserDependencyError("Playwright is not installed. Run `pip install -r requirements.txt`.") from exc
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try:
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self._playwright = await async_playwright().start()
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except Exception as exc:
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raise BrowserDependencyError(f"Unable to start Playwright: {exc}") from exc
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async def _reset_page_zoom(self, session: BrowserSession) -> None:
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try:
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cdp = await session.context.new_cdp_session(session.page)
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try:
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await cdp.send("Emulation.setPageScaleFactor", {"pageScaleFactor": 1})
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finally:
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await cdp.detach()
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except Exception:
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pass
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async def _autofill_login(
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self,
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page: Any,
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config: Optional[dict[str, Any]],
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*,
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max_wait_seconds: float = 8.0,
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poll_interval_seconds: float = 0.25,
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) -> None:
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if not config or not config.get("enabled"):
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return
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username = str(config.get("username") or "")
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password = str(config.get("password") or "")
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if not username or not password:
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return
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try:
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username_selectors = [
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config.get("username_selector"),
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"input[type='email']",
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"input[name*='user' i]",
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"input[id*='user' i]",
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"input[name*='email' i]",
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"input[id*='email' i]",
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"input[name*='login' i]",
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"input[id*='login' i]",
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"input[autocomplete='username']",
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"input:not([type]), input[type='text']",
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]
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password_selectors = [
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config.get("password_selector"),
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"input[type='password']",
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"input[autocomplete='current-password']",
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]
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username_locator, password_locator = await self._wait_for_login_locators(
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page,
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username_selectors,
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password_selectors,
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max_wait_seconds=max_wait_seconds,
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poll_interval_seconds=poll_interval_seconds,
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)
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if not username_locator or not password_locator:
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logger.info("Login autofill skipped for %s: login fields not found", page.url)
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return
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await username_locator.fill(username, timeout=3000)
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await password_locator.fill(password, timeout=3000)
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submit_selector = str(config.get("submit_selector") or "").strip()
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if submit_selector:
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submit = await self._first_visible_locator(page, [submit_selector], timeout=500)
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if submit:
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await submit.click(timeout=3000)
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except Exception as exc:
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logger.info("Login autofill skipped for %s: %s", page.url, exc)
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async def _wait_for_login_locators(
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self,
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page: Any,
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username_selectors: list[Optional[str]],
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password_selectors: list[Optional[str]],
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*,
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max_wait_seconds: float,
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poll_interval_seconds: float,
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) -> tuple[Optional[Any], Optional[Any]]:
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deadline = time.monotonic() + max_wait_seconds
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while True:
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username_locator = await self._first_visible_locator(page, username_selectors, timeout=150)
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password_locator = await self._first_visible_locator(page, password_selectors, timeout=150)
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if username_locator and password_locator:
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return username_locator, password_locator
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if time.monotonic() >= deadline:
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return None, None
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await asyncio.sleep(poll_interval_seconds)
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async def _first_visible_locator(
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self,
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page: Any,
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selectors: list[Optional[str]],
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*,
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timeout: float = 1500,
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) -> Optional[Any]:
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for selector in selectors:
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selector = str(selector or "").strip()
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if not selector:
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continue
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try:
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locator = page.locator(selector).first
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if await locator.count() and await locator.is_visible(timeout=timeout):
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return locator
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except Exception:
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continue
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return None
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def get_session(self, session_id: str) -> BrowserSession:
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"""Retrieve a session by id — raises KeyError if missing."""
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session = self._sessions.get(session_id)
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if not session:
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raise KeyError("browser session not found")
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return session
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_get = get_session # alias for internal use
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def _ensure_open(self, session: BrowserSession) -> None:
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if session.page.is_closed():
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self._discard_session(session.id)
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raise BrowserSessionError("browser page is closed")
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def _discard_session(self, session_id: str) -> BrowserSession | None:
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session = self._sessions.pop(session_id, None)
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if session and self._profiles.get(session.profile_key) == session_id:
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self._profiles.pop(session.profile_key, None)
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return session
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def _profile_dir(self, profile_key: str) -> Path:
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root = Path(get_settings().browser_profiles_dir)
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root.mkdir(parents=True, exist_ok=True)
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profile = root / profile_key
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profile.mkdir(parents=True, exist_ok=True)
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return profile
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def _profile_key(self, custom_page_id: int, url: str) -> str:
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parsed = urlparse(url)
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origin = f"{parsed.scheme}-{parsed.netloc}".lower()
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safe_origin = re.sub(r"[^a-z0-9_.-]+", "_", origin).strip("_") or "page"
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return f"page-{custom_page_id}-{safe_origin[:80]}"
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async def create_ephemeral(
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self,
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url: str,
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width: int = 1280,
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height: int = 720,
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) -> BrowserSession:
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"""Create a temporary browser session without a CustomPage record.
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The session uses an isolated random-named profile so it never collides
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with persistent custom-page profiles. Caller MUST close() when done.
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"""
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if not url.startswith(("http://", "https://")):
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raise ValueError("Only http/https URLs are allowed")
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width = max(320, min(width, 2560))
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height = max(240, min(height, 1600))
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async with self._lock:
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await self._ensure_playwright()
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session_id = uuid4().hex
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profile_key = f"auth-capture-{session_id[:12]}"
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context = await self._playwright.chromium.launch_persistent_context(
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str(self._profile_dir(profile_key)),
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headless=get_settings().browser_headless,
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viewport={"width": width, "height": height},
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args=["--no-sandbox", "--disable-dev-shm-usage"],
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)
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page = context.pages[0] if context.pages else await context.new_page()
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session = BrowserSession(
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id=session_id,
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custom_page_id=0,
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profile_key=profile_key,
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context=context,
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page=page,
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lock=asyncio.Lock(),
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captured_headers=[],
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)
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self._sessions[session.id] = session
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try:
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await page.goto(url, wait_until="domcontentloaded", timeout=45000)
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# Start CDP network capture immediately — so we don't miss login requests
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await self._start_cdp_capture(session)
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except Exception:
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await self.close(session.id)
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raise
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return session
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async def _start_cdp_capture(self, session: BrowserSession) -> None:
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"""Enable CDP Network domain and capture Authorization headers."""
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try:
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cdp = await session.context.new_cdp_session(session.page)
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await cdp.send("Network.enable")
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def on_request(params: dict) -> None:
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headers = params.get("request", {}).get("headers", {})
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auth = headers.get("authorization") or headers.get("Authorization")
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api_key = headers.get("x-api-key") or headers.get("X-API-Key")
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url = params.get("request", {}).get("url", "")
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if auth:
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session.captured_headers.append({
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"type": "authorization",
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"value": auth,
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"url": url,
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})
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if api_key:
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session.captured_headers.append({
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"type": "api_key",
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"value": api_key,
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"url": url,
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})
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cdp.on("Network.requestWillBeSent", on_request)
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session.cdp_session = cdp
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except Exception as exc:
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logger.debug("CDP capture not available: %s", exc)
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browser_sessions = BrowserSessionService()
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