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c5f9050 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 | ## used to manage browser navigation with intelligent anti-bot detection and proxy rotation
import asyncio
import time
from urllib.parse import urlparse
from backend.browser_controller import BrowserController
from backend.proxy_manager import SmartProxyManager
from backend.anti_bot_detection import AntiBotVisionModel
import logging
import base64
logger = logging.getLogger(__name__)
class SmartBrowserController(BrowserController):
def __init__(self, headless: bool, proxy: dict | None, enable_streaming: bool = False):
super().__init__(headless, proxy, enable_streaming)
# Initialize smart proxy management
self.vision_model = AntiBotVisionModel()
self.proxy_manager = SmartProxyManager(self.vision_model)
self.current_proxy = proxy
self.max_proxy_retries = 5
self.proxy_retry_count = 0
self.max_captcha_solve_attempts = 3
self.captcha_solve_count = 0
async def smart_navigate(self, url: str, wait_until: str = "domcontentloaded", timeout: int = 30000) -> bool:
"""Navigate with intelligent anti-bot detection and proxy rotation"""
site_domain = urlparse(url).netloc
for attempt in range(self.max_proxy_retries):
try:
logger.info(f"🌐 Smart navigation attempt {attempt + 1}/{self.max_proxy_retries} to: {url}")
start_time = time.time()
# Navigate to the page
response = await self.page.goto(url, wait_until=wait_until, timeout=timeout)
response_time = time.time() - start_time
# Wait a moment for page to fully load
await asyncio.sleep(2)
# Use vision model to detect anti-bot systems
is_antibot, detection_type, suggested_action = await self.proxy_manager.detect_anti_bot_with_vision(
self.page, f"navigate to {url}"
)
if is_antibot:
logger.warning(f"🚫 Anti-bot detected: {detection_type}, suggested action: {suggested_action}")
# Handle based on suggested action
if suggested_action == "solve_captcha" and self.captcha_solve_count < self.max_captcha_solve_attempts:
success = await self._attempt_captcha_solve(url, detection_type)
if success:
logger.info("✅ CAPTCHA solved successfully!")
if self.current_proxy:
proxy_info = next((p for p in self.proxy_manager.proxies if p.to_playwright_dict() == self.current_proxy), None)
if proxy_info:
self.proxy_manager.mark_proxy_success(proxy_info, response_time)
return True
else:
self.captcha_solve_count += 1
if suggested_action in ["rotate_proxy", "retry"] or self.captcha_solve_count >= self.max_captcha_solve_attempts:
# Mark current proxy as failed
if self.current_proxy:
proxy_info = next((p for p in self.proxy_manager.proxies if p.to_playwright_dict() == self.current_proxy), None)
if proxy_info:
self.proxy_manager.mark_proxy_failure(proxy_info, site_domain, detection_type)
# Try with new proxy
if attempt < self.max_proxy_retries - 1:
new_proxy_info = self.proxy_manager.get_best_proxy(exclude_blocked_for=site_domain)
if new_proxy_info:
new_proxy = new_proxy_info.to_playwright_dict()
logger.info(f"🔄 Rotating to new proxy: {new_proxy['server']}")
await self._restart_browser_with_proxy(new_proxy)
await asyncio.sleep(3) # Wait before retry
continue
else:
logger.error("❌ No available proxies for rotation")
return False
if suggested_action == "abort":
logger.error(f"❌ Aborting navigation due to unresolvable anti-bot: {detection_type}")
return False
else:
# Success! No anti-bot detected
logger.info(f"✅ Successfully navigated to: {url}")
if self.current_proxy:
proxy_info = next((p for p in self.proxy_manager.proxies if p.to_playwright_dict() == self.current_proxy), None)
if proxy_info:
self.proxy_manager.mark_proxy_success(proxy_info, response_time)
self.proxy_retry_count = 0
self.captcha_solve_count = 0
return True
except Exception as e:
logger.error(f"❌ Navigation failed on attempt {attempt + 1}: {e}")
# Mark proxy failure and try another
if self.current_proxy:
proxy_info = next((p for p in self.proxy_manager.proxies if p.to_playwright_dict() == self.current_proxy), None)
if proxy_info:
self.proxy_manager.mark_proxy_failure(proxy_info, site_domain, "connection_error")
if attempt < self.max_proxy_retries - 1:
new_proxy_info = self.proxy_manager.get_best_proxy(exclude_blocked_for=site_domain)
if new_proxy_info:
new_proxy = new_proxy_info.to_playwright_dict()
logger.info(f"🔄 Retrying with new proxy due to connection error")
await self._restart_browser_with_proxy(new_proxy)
await asyncio.sleep(3)
continue
logger.error(f"❌ Failed to navigate to {url} after all retries")
return False
async def _attempt_captcha_solve(self, url: str, detection_type: str) -> bool:
"""Attempt to solve CAPTCHA using vision model"""
try:
logger.info(f"🧩 Attempting to solve {detection_type} CAPTCHA...")
# Take screenshot for CAPTCHA analysis
screenshot_bytes = await self.page.screenshot(type='png')
screenshot_b64 = base64.b64encode(screenshot_bytes).decode('utf-8')
# Use vision model to solve CAPTCHA
solution = await self.vision_model.solve_captcha(screenshot_b64, url, detection_type)
if solution.get("can_solve", False) and solution.get("confidence", 0) > 0.7:
logger.info(f"🎯 CAPTCHA solution found: {solution.get('solution', 'N/A')}")
# Implement CAPTCHA solving logic based on solution type
success = await self._apply_captcha_solution(solution)
return success
else:
logger.warning(f"❌ Could not solve CAPTCHA: {solution.get('instructions', 'Unknown reason')}")
return False
except Exception as e:
logger.error(f"❌ Error attempting CAPTCHA solve: {e}")
return False
async def _apply_captcha_solution(self, solution: dict) -> bool:
"""Apply the CAPTCHA solution to the page"""
try:
solution_type = solution.get("solution_type", "unknown")
solution_value = solution.get("solution", "")
if solution_type == "text":
# Find text input and enter solution
text_inputs = await self.page.query_selector_all('input[type="text"], input:not([type])')
for input_elem in text_inputs:
if await input_elem.is_visible():
await input_elem.fill(solution_value)
await asyncio.sleep(1)
# Look for submit button
submit_buttons = await self.page.query_selector_all('button, input[type="submit"]')
for button in submit_buttons:
if await button.is_visible():
await button.click()
await asyncio.sleep(3)
return True
elif solution_type == "selection":
# Handle image selection CAPTCHAs
logger.warning("🚧 Image selection CAPTCHA solving not fully implemented")
return False
elif solution_type == "math":
# Similar to text but specifically for math solutions
text_inputs = await self.page.query_selector_all('input[type="text"], input:not([type])')
for input_elem in text_inputs:
if await input_elem.is_visible():
await input_elem.fill(str(solution_value))
await asyncio.sleep(1)
submit_buttons = await self.page.query_selector_all('button, input[type="submit"]')
for button in submit_buttons:
if await button.is_visible():
await button.click()
await asyncio.sleep(3)
return True
return False
except Exception as e:
logger.error(f"❌ Error applying CAPTCHA solution: {e}")
return False
async def _restart_browser_with_proxy(self, new_proxy: dict):
"""Restart browser with new proxy"""
try:
# Close current browser
if self.browser:
await self.browser.close()
# Update proxy
self.current_proxy = new_proxy
# Launch new browser with new proxy
launch_options = {
"headless": self.headless,
"args": [
"--no-sandbox",
"--disable-dev-shm-usage",
"--disable-gpu",
"--disable-web-security",
"--disable-features=VizDisplayCompositor",
"--window-size=1280,800",
"--window-position=0,0",
"--disable-blink-features=AutomationControlled",
"--disable-extensions",
"--no-first-run",
"--disable-default-apps",
"--remote-debugging-port=0"
]
}
if new_proxy:
launch_options["proxy"] = new_proxy
self.browser = await self.play.chromium.launch(**launch_options)
self.page = await self.browser.new_page(viewport={"width": 1280, "height": 800})
# Re-setup CDP streaming if enabled
if self.enable_streaming:
await self._setup_cdp_streaming()
# Set headers with randomization
await self.page.set_extra_http_headers({
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
})
logger.info("✅ Browser restarted with new proxy")
except Exception as e:
logger.error(f"❌ Failed to restart browser with new proxy: {e}")
raise
def get_proxy_stats(self) -> dict:
"""Get current proxy statistics"""
stats = self.proxy_manager.get_proxy_stats()
stats.update({
"current_proxy": self.current_proxy.get("server", "None") if self.current_proxy else "None",
"retry_count": self.proxy_retry_count,
"captcha_solve_count": self.captcha_solve_count
})
return stats
# Override the goto method to use smart navigation
async def goto(self, url: str, wait_until: str = "domcontentloaded", timeout: int = 30000):
"""Navigate to a URL with smart anti-bot detection"""
success = await self.smart_navigate(url, wait_until, timeout)
if not success:
raise Exception(f"Failed to navigate to {url} after intelligent retry attempts")
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