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Hemang Thakur
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·
e0ab505
1
Parent(s):
83e870c
commented out crawl4ai
Browse files- src/crawl/crawler.py +566 -566
src/crawl/crawler.py
CHANGED
@@ -1,17 +1,17 @@
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from crawl4ai import AsyncWebCrawler
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from urllib.parse import urlparse
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import aiohttp
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import asyncio
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from asyncio.exceptions import TimeoutError as async_timeout
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from fast_async import make_async
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from bs4 import BeautifulSoup, NavigableString
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import secrets
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from datetime import datetime
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import random
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import os
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import re
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import uuid
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from typing import List, Dict, Tuple
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from io import BytesIO
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import PyPDF2
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from fake_useragent import FakeUserAgent
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import torch
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import time
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class Crawler:
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window.scrollTo(0, document.body.scrollHeight);
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await new Promise(resolve => setTimeout(resolve, 1000));
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const button = Array.from(document.querySelectorAll('button, a, div, span')).find(
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if (button) {
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}
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if (nextPage) {
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}
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if (window.__INITIAL_STATE__ || window.__REDUX_STATE__ || window.__NUXT__ || window.__NEXT_DATA__) {
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}
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if (window.__INITIAL_STATE__ || window.__REDUX_STATE__ || window.__NUXT__ || window.__NEXT_DATA__) {
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console.log('API requests detected. Use browser devtools to inspect network activity for specific endpoints.');
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class CustomCrawler:
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def __init__(
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1 |
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# from crawl4ai import AsyncWebCrawler
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2 |
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# from urllib.parse import urlparse
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3 |
import aiohttp
|
4 |
import asyncio
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5 |
+
# from asyncio.exceptions import TimeoutError as async_timeout
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6 |
from fast_async import make_async
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7 |
from bs4 import BeautifulSoup, NavigableString
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8 |
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# import secrets
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9 |
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# from datetime import datetime
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10 |
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# import random
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11 |
import os
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12 |
import re
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13 |
import uuid
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14 |
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from typing import List, Dict, Optional #, Tuple
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15 |
from io import BytesIO
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16 |
import PyPDF2
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17 |
from fake_useragent import FakeUserAgent
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import torch
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21 |
import time
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# class Crawler:
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# def __init__(self, user_dir=None, rate_limit=1, headless=True, verbose=False):
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# self.session_pool = {} # Track active sessions
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# self.verbose = verbose
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# self.rate_limit = rate_limit
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# self.user_dir = user_dir
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# self.headless = headless
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# self.crawler = AsyncWebCrawler(
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# context_options={"userDataDir": self.user_dir},
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# headless=self.headless,
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# verbose=self.verbose
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# )
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# # Browser context management
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# self._browser_contexts = {}
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# self._context_locks = {}
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# async def get_browser_context(self, session_id):
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# """Get or create a browser context with proper locking"""
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# if session_id not in self._context_locks:
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# self._context_locks[session_id] = asyncio.Lock()
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# async with self._context_locks[session_id]:
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# if session_id not in self._browser_contexts:
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# context = await self.crawler.new_context()
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# self._browser_contexts[session_id] = context
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# return self._browser_contexts[session_id]
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# async def cleanup_browser_context(self, session_id):
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# """Safely cleanup browser context"""
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# if session_id in self._context_locks:
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# async with self._context_locks[session_id]:
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# if session_id in self._browser_contexts:
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# try:
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# await asyncio.shield(
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# self._browser_contexts[session_id].close()
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# )
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# except Exception as e:
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# print(f"Error cleaning up browser context: {e}")
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# finally:
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# del self._browser_contexts[session_id]
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# def create_session(self):
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# """Create a new session with secure ID"""
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# session_id = secrets.token_urlsafe(32) # Secure session ID
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# self.session_pool[session_id] = {
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# 'created_at': datetime.now(),
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# 'last_used': datetime.now(),
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# 'requests_count': 0
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# }
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# return session_id
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# def rotate_session(self, session_id):
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# """Implement session rotation logic"""
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# if self.session_pool[session_id]['requests_count'] > 100:
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# self.cleanup_session(session_id)
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# return self.create_session()
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# return session_id
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# def is_dynamic_page(self, html_content: str) -> Tuple[bool, Optional[str]]:
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# """Analyzes HTML content to determine if a webpage is dynamically loaded"""
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84 |
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# def _check_structural_indicators(soup: BeautifulSoup) -> Dict[str, int]:
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+
# """Check structural indicators of dynamic content loading."""
|
86 |
+
# scores = {
|
87 |
+
# 'empty_containers': 0,
|
88 |
+
# 'repeated_structures': 0,
|
89 |
+
# 'api_endpoints': 0,
|
90 |
+
# 'state_management': 0
|
91 |
+
# }
|
92 |
|
93 |
+
# # 1. Check for empty content containers
|
94 |
+
# main_containers = soup.find_all(['main', 'div', 'section'],
|
95 |
+
# class_=lambda x: x and any(term in str(x).lower()
|
96 |
+
# for term in ['content', 'main', 'feed', 'list', 'container']))
|
97 |
|
98 |
+
# for container in main_containers:
|
99 |
+
# # Check if container is empty or has minimal content
|
100 |
+
# if len(container.find_all()) < 3:
|
101 |
+
# scores['empty_containers'] += 1
|
102 |
|
103 |
+
# # Check for repeated similar structures (common in dynamic lists)
|
104 |
+
# children = container.find_all(recursive=False)
|
105 |
+
# if children:
|
106 |
+
# first_child_class = children[0].get('class', [])
|
107 |
+
# similar_siblings = [c for c in children[1:]
|
108 |
+
# if c.get('class', []) == first_child_class]
|
109 |
+
# if len(similar_siblings) > 0:
|
110 |
+
# scores['repeated_structures'] += 1
|
111 |
+
|
112 |
+
# # 2. Check for API endpoints in scripts
|
113 |
+
# scripts = soup.find_all('script', {'src': True})
|
114 |
+
# api_patterns = ['/api/', '/graphql', '/rest/', '/v1/', '/v2/']
|
115 |
+
# for script in scripts:
|
116 |
+
# if any(pattern in script['src'] for pattern in api_patterns):
|
117 |
+
# scores['api_endpoints'] += 1
|
118 |
+
|
119 |
+
# # 3. Look for state management setup
|
120 |
+
# state_patterns = [
|
121 |
+
# r'window\.__INITIAL_STATE__',
|
122 |
+
# r'window\.__PRELOADED_STATE__',
|
123 |
+
# r'__REDUX_STATE__',
|
124 |
+
# r'__NUXT__',
|
125 |
+
# r'__NEXT_DATA__',
|
126 |
+
# r'window\.__data'
|
127 |
+
# ]
|
128 |
|
129 |
+
# inline_scripts = soup.find_all('script')
|
130 |
+
# for script in inline_scripts:
|
131 |
+
# if script.string:
|
132 |
+
# for pattern in state_patterns:
|
133 |
+
# if re.search(pattern, script.string):
|
134 |
+
# scores['state_management'] += 1
|
135 |
+
|
136 |
+
# return scores
|
137 |
+
|
138 |
+
# def _check_modern_framework_indicators(soup: BeautifulSoup) -> Dict[str, int]:
|
139 |
+
# """Check for indicators of modern web frameworks and dynamic loading patterns."""
|
140 |
+
# scores = {
|
141 |
+
# 'framework_roots': 0,
|
142 |
+
# 'hydration': 0,
|
143 |
+
# 'routing': 0
|
144 |
+
# }
|
145 |
|
146 |
+
# # 1. Framework-specific root elements
|
147 |
+
# framework_roots = {
|
148 |
+
# 'react': ['react-root', 'react-app', 'root', '__next'],
|
149 |
+
# 'angular': ['ng-version', 'ng-app'],
|
150 |
+
# 'vue': ['v-app', '#app', 'nuxt-app'],
|
151 |
+
# 'modern': ['app-root', 'application', 'spa-root']
|
152 |
+
# }
|
153 |
|
154 |
+
# for framework, identifiers in framework_roots.items():
|
155 |
+
# for id_value in identifiers:
|
156 |
+
# if (soup.find(attrs={'id': re.compile(id_value, re.I)}) or
|
157 |
+
# soup.find(attrs={'class': re.compile(id_value, re.I)}) or
|
158 |
+
# soup.find(attrs={'data-': re.compile(id_value, re.I)})):
|
159 |
+
# scores['framework_roots'] += 1
|
160 |
+
|
161 |
+
# # 2. Check for hydration indicators
|
162 |
+
# hydration_patterns = [
|
163 |
+
# r'hydrate',
|
164 |
+
# r'createRoot',
|
165 |
+
# r'reactive',
|
166 |
+
# r'observable'
|
167 |
+
# ]
|
168 |
|
169 |
+
# scripts = soup.find_all('script')
|
170 |
+
# for script in scripts:
|
171 |
+
# if script.string:
|
172 |
+
# for pattern in hydration_patterns:
|
173 |
+
# if re.search(pattern, script.string):
|
174 |
+
# scores['hydration'] += 1
|
175 |
+
|
176 |
+
# # 3. Check for dynamic routing setup
|
177 |
+
# router_patterns = [
|
178 |
+
# 'router-view',
|
179 |
+
# 'router-link',
|
180 |
+
# 'route-link',
|
181 |
+
# 'history.push',
|
182 |
+
# 'navigation'
|
183 |
+
# ]
|
184 |
|
185 |
+
# for pattern in router_patterns:
|
186 |
+
# if soup.find(class_=re.compile(pattern, re.I)) or \
|
187 |
+
# soup.find(id=re.compile(pattern, re.I)):
|
188 |
+
# scores['routing'] += 1
|
189 |
+
|
190 |
+
# return scores
|
191 |
+
|
192 |
+
# def _check_dynamic_loading_patterns(soup: BeautifulSoup) -> Dict[str, int]:
|
193 |
+
# """Check for various dynamic content loading patterns."""
|
194 |
+
# scores = {
|
195 |
+
# 'infinite_scroll': 0,
|
196 |
+
# 'load_more_buttons': 0,
|
197 |
+
# 'pagination': 0,
|
198 |
+
# 'lazy_loading': 0,
|
199 |
+
# 'loading_indicators': 0
|
200 |
+
# }
|
201 |
|
202 |
+
# # 1. Check for infinite scroll indicators
|
203 |
+
# scroll_indicators = [
|
204 |
+
# 'infinite-scroll',
|
205 |
+
# 'data-infinite',
|
206 |
+
# 'data-virtualized',
|
207 |
+
# 'virtual-scroll',
|
208 |
+
# 'scroll-container',
|
209 |
+
# 'scroll-viewport'
|
210 |
+
# ]
|
211 |
|
212 |
+
# for indicator in scroll_indicators:
|
213 |
+
# elements = soup.find_all(
|
214 |
+
# lambda tag: any(indicator.lower() in str(v).lower()
|
215 |
+
# for v in tag.attrs.values())
|
216 |
+
# )
|
217 |
+
# if elements:
|
218 |
+
# scores['infinite_scroll'] += len(elements)
|
219 |
+
|
220 |
+
# # 2. Check for load more buttons
|
221 |
+
# button_patterns = [
|
222 |
+
# r'load[_-]?more',
|
223 |
+
# r'show[_-]?more',
|
224 |
+
# r'view[_-]?more',
|
225 |
+
# r'see[_-]?more',
|
226 |
+
# r'more[_-]?posts',
|
227 |
+
# r'more[_-]?results'
|
228 |
+
# ]
|
229 |
|
230 |
+
# for pattern in button_patterns:
|
231 |
+
# elements = soup.find_all(
|
232 |
+
# ['button', 'a', 'div', 'span'],
|
233 |
+
# text=re.compile(pattern, re.I)
|
234 |
+
# )
|
235 |
+
# if elements:
|
236 |
+
# scores['load_more_buttons'] += len(elements)
|
237 |
+
|
238 |
+
# # 3. Check for pagination
|
239 |
+
# pagination_patterns = [
|
240 |
+
# 'pagination',
|
241 |
+
# 'page-numbers',
|
242 |
+
# 'page-nav',
|
243 |
+
# 'page-links'
|
244 |
+
# ]
|
245 |
|
246 |
+
# for pattern in pagination_patterns:
|
247 |
+
# elements = soup.find_all(class_=re.compile(pattern, re.I))
|
248 |
+
# if elements:
|
249 |
+
# scores['pagination'] += len(elements)
|
250 |
+
|
251 |
+
# # 4. Check for lazy loading
|
252 |
+
# lazy_patterns = ['lazy', 'data-src', 'data-lazy']
|
253 |
+
# for pattern in lazy_patterns:
|
254 |
+
# elements = soup.find_all(
|
255 |
+
# lambda tag: any(pattern.lower() in str(v).lower()
|
256 |
+
# for v in tag.attrs.values())
|
257 |
+
# )
|
258 |
+
# if elements:
|
259 |
+
# scores['lazy_loading'] += len(elements)
|
260 |
+
|
261 |
+
# # 5. Check for loading indicators
|
262 |
+
# loading_patterns = [
|
263 |
+
# 'loading',
|
264 |
+
# 'spinner',
|
265 |
+
# 'skeleton',
|
266 |
+
# 'placeholder',
|
267 |
+
# 'shimmer'
|
268 |
+
# ]
|
269 |
|
270 |
+
# for pattern in loading_patterns:
|
271 |
+
# elements = soup.find_all(class_=re.compile(pattern, re.I))
|
272 |
+
# if elements:
|
273 |
+
# scores['loading_indicators'] += len(elements)
|
274 |
+
|
275 |
+
# return scores
|
276 |
+
|
277 |
+
# def _evaluate_dynamic_indicators(
|
278 |
+
# structural: Dict[str, int],
|
279 |
+
# framework: Dict[str, int],
|
280 |
+
# loading: Dict[str, int]
|
281 |
+
# ) -> Tuple[bool, Optional[str]]:
|
282 |
+
# """Evaluate dynamic indicators and return JavaScript instructions."""
|
283 |
+
# methods = []
|
284 |
+
# js_snippets = []
|
285 |
+
|
286 |
+
# # Infinite Scroll
|
287 |
+
# if loading['infinite_scroll'] > 0:
|
288 |
+
# methods.append("scroll")
|
289 |
+
# js_snippets.append(
|
290 |
+
# """
|
291 |
+
# window.scrollTo(0, document.body.scrollHeight);
|
292 |
+
# await new Promise(resolve => setTimeout(resolve, 1000));
|
293 |
+
# """.strip().replace('\n', '')
|
294 |
+
# )
|
295 |
+
|
296 |
+
# # Load More Buttons
|
297 |
+
# if loading['load_more_buttons'] > 0:
|
298 |
+
# methods.append("button")
|
299 |
+
# js_snippets.append(
|
300 |
+
# """
|
301 |
+
# const button = Array.from(document.querySelectorAll('button, a, div, span')).find(
|
302 |
+
# el => /load[_-]?more|show[_-]?more/i.test(el.textContent)
|
303 |
+
# );
|
304 |
+
# if (button) {
|
305 |
+
# button.click();
|
306 |
+
# await new Promise(resolve => setTimeout(resolve, 1000));
|
307 |
+
# } else {
|
308 |
+
# console.warn("No 'Load More' button found.");
|
309 |
+
# }
|
310 |
+
# """.strip().replace('\n', '')
|
311 |
+
# )
|
312 |
+
|
313 |
+
# # Paginated Interfaces
|
314 |
+
# if loading.get('pagination', 0) > 0:
|
315 |
+
# methods.append("pagination")
|
316 |
+
# js_snippets.append(
|
317 |
+
# """
|
318 |
+
# const nextPage = document.querySelector('a[rel="next"], .pagination-next, .page-next');
|
319 |
+
# if (nextPage) {
|
320 |
+
# nextPage.click();
|
321 |
+
# await new Promise(resolve => setTimeout(resolve, 1000));
|
322 |
+
# } else {
|
323 |
+
# console.warn("No pagination link found.");
|
324 |
+
# }
|
325 |
+
# """.strip().replace('\n', '')
|
326 |
+
# )
|
327 |
+
|
328 |
+
# # Lazy Loading
|
329 |
+
# if loading.get('lazy_loading', 0) > 0:
|
330 |
+
# methods.append("lazy")
|
331 |
+
# js_snippets.append(
|
332 |
+
# """
|
333 |
+
# if (window.__INITIAL_STATE__ || window.__REDUX_STATE__ || window.__NUXT__ || window.__NEXT_DATA__) {
|
334 |
+
# console.log('Framework state detected. Consider monitoring network requests for further actions.');
|
335 |
+
# }
|
336 |
+
# """.strip().replace('\n', '')
|
337 |
+
# )
|
338 |
+
|
339 |
+
# # Framework and State Management Indicators
|
340 |
+
# if framework['framework_roots'] > 0 or structural['state_management'] > 0:
|
341 |
+
# methods.append("stateful")
|
342 |
+
# js_snippets.append(
|
343 |
+
# """
|
344 |
+
# if (window.__INITIAL_STATE__ || window.__REDUX_STATE__ || window.__NUXT__ || window.__NEXT_DATA__) {
|
345 |
+
# console.log('Detected stateful framework data loading.');
|
346 |
+
# }
|
347 |
+
# """.strip().replace('\n', '')
|
348 |
+
# )
|
349 |
+
|
350 |
+
# # API-Driven Content
|
351 |
+
# if structural['api_endpoints'] > 0:
|
352 |
+
# methods.append("api")
|
353 |
+
# js_snippets.append(
|
354 |
+
# """
|
355 |
+
# console.log('API requests detected. Use browser devtools to inspect network activity for specific endpoints.');
|
356 |
+
# """.strip().replace('\n', '')
|
357 |
+
# )
|
358 |
+
|
359 |
+
# # Aggregate and finalize
|
360 |
+
# if methods:
|
361 |
+
# js_code = "\n".join(js_snippets)
|
362 |
+
# return True, js_code
|
363 |
|
364 |
+
# return False, None
|
365 |
|
366 |
+
# # Main execution
|
367 |
+
# soup = BeautifulSoup(html_content, 'html.parser')
|
368 |
|
369 |
+
# # Run all checks
|
370 |
+
# structural_scores = _check_structural_indicators(soup)
|
371 |
+
# framework_scores = _check_modern_framework_indicators(soup)
|
372 |
+
# loading_scores = _check_dynamic_loading_patterns(soup)
|
373 |
|
374 |
+
# # Evaluate results
|
375 |
+
# return _evaluate_dynamic_indicators(structural_scores, framework_scores, loading_scores)
|
376 |
+
|
377 |
+
# async def crawl(
|
378 |
+
# self,
|
379 |
+
# url,
|
380 |
+
# depth=2,
|
381 |
+
# max_pages=5,
|
382 |
+
# session_id=None,
|
383 |
+
# human_simulation=True,
|
384 |
+
# rotate_user_agent=True,
|
385 |
+
# rotate_proxy=True,
|
386 |
+
# return_html=False
|
387 |
+
# ):
|
388 |
+
# if not session_id:
|
389 |
+
# session_id = self.create_session()
|
390 |
+
|
391 |
+
# session_id = self.rotate_session(session_id)
|
392 |
+
|
393 |
+
# # List of rotating user agents
|
394 |
+
# user_agents = [
|
395 |
+
# 'Chrome/115.0.0.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36',
|
396 |
+
# 'Chrome/115.0.0.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36',
|
397 |
+
# 'Chrome/115.0.0.0 (iPad; CPU OS 12_2 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36',
|
398 |
+
# 'Chrome/115.0.0.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36',
|
399 |
+
# 'Chrome/115.0.0.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36'
|
400 |
+
# ]
|
401 |
+
|
402 |
+
# # List of rotating proxies
|
403 |
+
# proxies = [
|
404 |
+
# "http://50.62.183.123:80",
|
405 |
+
# "http://104.129.60.84:6516",
|
406 |
+
# "http://156.228.118.163:3128",
|
407 |
+
# "http://142.111.104.97:6107",
|
408 |
+
# "http://156.228.99.99:3128"
|
409 |
+
# ]
|
410 |
+
|
411 |
+
# try:
|
412 |
+
# async with self.crawler as crawler:
|
413 |
+
# # Rotate user agent and optimize headers for each attempt
|
414 |
+
# headers = {
|
415 |
+
# "User-Agent": random.choice(user_agents) if rotate_user_agent else user_agents[0],
|
416 |
+
# "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
|
417 |
+
# "Accept-Language": "en-US,en;q=0.5",
|
418 |
+
# "Accept-Encoding": "gzip, deflate",
|
419 |
+
# "Connection": "keep-alive",
|
420 |
+
# "Upgrade-Insecure-Requests": "1",
|
421 |
+
# "Sec-Fetch-Dest": "document",
|
422 |
+
# "Sec-Fetch-Mode": "navigate",
|
423 |
+
# "Sec-Fetch-Site": "none",
|
424 |
+
# "Sec-Fetch-User": "?1",
|
425 |
+
# "Cache-Control": "max-age=0"
|
426 |
+
# }
|
427 |
|
428 |
+
# # Update crawler headers for rotation
|
429 |
+
# crawler.crawler_strategy.headers = headers
|
430 |
+
|
431 |
+
# if rotate_proxy:
|
432 |
+
# # Update crawler proxy for rotation
|
433 |
+
# crawler.crawler_strategy.proxy = random.choice(proxies)
|
434 |
+
|
435 |
+
# result_1 = await crawler.arun(
|
436 |
+
# session_id=session_id,
|
437 |
+
# url=url,
|
438 |
+
# magic=True if human_simulation else False,
|
439 |
+
# simulate_user=True if human_simulation else False,
|
440 |
+
# override_navigator=True if human_simulation else False,
|
441 |
+
# depth=depth,
|
442 |
+
# max_pages=max_pages,
|
443 |
+
# bypass_cache=True,
|
444 |
+
# remove_overlay_elements=True,
|
445 |
+
# delay_before_retrieve_html=1.0,
|
446 |
+
# verbose=self.verbose
|
447 |
+
# )
|
448 |
+
|
449 |
+
# # Update session metrics
|
450 |
+
# self.session_pool[session_id]['requests_count'] += 1
|
451 |
+
# self.session_pool[session_id]['last_used'] = datetime.now()
|
452 |
+
|
453 |
+
# if result_1.success:
|
454 |
+
# if hasattr(result_1, 'html'):
|
455 |
+
# success, js_code = self.is_dynamic_page(result_1.html)
|
456 |
+
|
457 |
+
# if success:
|
458 |
+
# async with crawler as crawler:
|
459 |
+
# # Update crawler headers for rotation
|
460 |
+
# crawler.crawler_strategy.headers = headers
|
461 |
+
|
462 |
+
# if rotate_proxy:
|
463 |
+
# # Update crawler proxy for rotation
|
464 |
+
# crawler.crawler_strategy.proxy = random.choice(proxies)
|
465 |
+
|
466 |
+
# print(f"Executing JS code: {js_code}")
|
467 |
+
# result_2 = await crawler.arun(
|
468 |
+
# session_id=session_id,
|
469 |
+
# url=url,
|
470 |
+
# magic=True if human_simulation else False,
|
471 |
+
# simulate_user=True if human_simulation else False,
|
472 |
+
# override_navigator=True if human_simulation else False,
|
473 |
+
# depth=depth,
|
474 |
+
# max_pages=max_pages,
|
475 |
+
# js_code=js_code,
|
476 |
+
# bypass_cache=True,
|
477 |
+
# remove_overlay_elements=True,
|
478 |
+
# delay_before_retrieve_html=1.0,
|
479 |
+
# verbose=self.verbose
|
480 |
+
# )
|
481 |
+
|
482 |
+
# if result_2.success:
|
483 |
+
# result = result_2
|
484 |
+
# else:
|
485 |
+
# result = result_1
|
486 |
+
|
487 |
+
# # Update session metrics
|
488 |
+
# self.session_pool[session_id]['requests_count'] += 1
|
489 |
+
# self.session_pool[session_id]['last_used'] = datetime.now()
|
490 |
+
|
491 |
+
# else:
|
492 |
+
# result = result_1
|
493 |
|
494 |
+
# if return_html and hasattr(result, 'html'):
|
495 |
+
# return result.html
|
496 |
+
# elif hasattr(result, 'fit_markdown'):
|
497 |
+
# return result.fit_markdown
|
498 |
+
# elif hasattr(result, 'markdown'):
|
499 |
+
# return self.extract_content(result.markdown)
|
500 |
|
501 |
+
# except Exception as e:
|
502 |
+
# print(f"Error crawling {url}: {str(e)}")
|
503 |
|
504 |
+
# return None
|
505 |
|
506 |
+
# async def crawl_with_retry(
|
507 |
+
# self,
|
508 |
+
# url,
|
509 |
+
# depth=2,
|
510 |
+
# max_pages=5,
|
511 |
+
# max_retries=3,
|
512 |
+
# backoff_factor=1,
|
513 |
+
# session_id=None,
|
514 |
+
# human_simulation=True,
|
515 |
+
# rotate_user_agent=True,
|
516 |
+
# rotate_proxy=True,
|
517 |
+
# return_html=False,
|
518 |
+
# timeout=10.0
|
519 |
+
# ):
|
520 |
+
# """Crawl with retry logic and anti-blocking measures"""
|
521 |
+
|
522 |
+
# async def attempt_crawl(attempt):
|
523 |
+
# try:
|
524 |
+
# async with async_timeout.timeout(timeout):
|
525 |
+
# context = await self.get_browser_context(session_id)
|
526 |
+
# return await self.crawl(
|
527 |
+
# context,
|
528 |
+
# url,
|
529 |
+
# depth,
|
530 |
+
# max_pages,
|
531 |
+
# session_id,
|
532 |
+
# human_simulation,
|
533 |
+
# rotate_user_agent,
|
534 |
+
# rotate_proxy,
|
535 |
+
# return_html
|
536 |
+
# )
|
537 |
+
# except asyncio.TimeoutError:
|
538 |
+
# print(f"Timeout on attempt {attempt} for {url}")
|
539 |
+
# raise
|
540 |
+
# except Exception as e:
|
541 |
+
# print(f"Error on attempt {attempt} for {url}: {e}")
|
542 |
+
# raise
|
543 |
+
|
544 |
+
# if not self.is_valid_url(url) and not self.is_html_url(url):
|
545 |
+
# print(f"Invalid URL: {url}")
|
546 |
+
# return f"No web results found for query: {url}"
|
547 |
+
|
548 |
+
# for attempt in range(max_retries):
|
549 |
+
# try:
|
550 |
+
# if attempt > 0:
|
551 |
+
# # Add delay between retries with exponential backoff
|
552 |
+
# delay = backoff_factor * (2 ** (attempt - 1))
|
553 |
+
# await asyncio.sleep(delay)
|
554 |
|
555 |
+
# return await attempt_crawl(attempt + 1)
|
556 |
+
# except Exception as e:
|
557 |
+
# if attempt == max_retries - 1:
|
558 |
+
# print(f"Max retries ({max_retries}) reached for {url}")
|
559 |
+
# return f"Failed to crawl after {max_retries} attempts: {url}"
|
560 |
+
# continue
|
561 |
+
|
562 |
+
# return f"No content found after {max_retries} attempts for: {url}"
|
563 |
+
|
564 |
+
# def extract_content(self, html_content):
|
565 |
+
# soup = BeautifulSoup(html_content, 'html.parser')
|
566 |
+
# for script in soup(["script", "style"]):
|
567 |
+
# script.decompose()
|
568 |
+
# text = soup.get_text()
|
569 |
+
# lines = (line.strip() for line in text.splitlines())
|
570 |
+
# chunks = (phrase.strip() for line in lines for phrase in line.split(" "))
|
571 |
+
# text = '\n'.join(chunk for chunk in chunks if chunk)
|
572 |
+
# return text
|
573 |
|
574 |
+
# def cleanup_session(self, session_id):
|
575 |
+
# """Clean up a session"""
|
576 |
+
# print(f"Cleaning up session {session_id}")
|
577 |
+
# if session_id in self.session_pool:
|
578 |
+
# self.crawler.crawler_strategy.kill_session(session_id)
|
579 |
+
# del self.session_pool[session_id]
|
580 |
+
|
581 |
+
# def cleanup_expired_sessions(self):
|
582 |
+
# """Regular cleanup of expired sessions using proper time calculation"""
|
583 |
+
# try:
|
584 |
+
# current_time = datetime.now()
|
585 |
+
# expired_sessions = []
|
586 |
|
587 |
+
# for sid, data in self.session_pool.items():
|
588 |
+
# # Calculate time difference in seconds
|
589 |
+
# time_diff = (current_time - data['last_used']).total_seconds()
|
590 |
|
591 |
+
# # Check if more than 1 hour (3600 seconds)
|
592 |
+
# if time_diff > 3600:
|
593 |
+
# expired_sessions.append(sid)
|
594 |
|
595 |
+
# # Cleanup expired sessions
|
596 |
+
# for session_id in expired_sessions:
|
597 |
+
# self.cleanup_session(session_id)
|
598 |
|
599 |
+
# except Exception as e:
|
600 |
+
# if self.verbose:
|
601 |
+
# print(f"Error during session cleanup: {str(e)}")
|
602 |
|
603 |
+
# @staticmethod
|
604 |
+
# def is_valid_url(url):
|
605 |
+
# try:
|
606 |
+
# result = urlparse(url)
|
607 |
+
# return all([result.scheme, result.netloc])
|
608 |
+
# except ValueError:
|
609 |
+
# return False
|
610 |
|
611 |
+
# @staticmethod
|
612 |
+
# def is_html_url(url):
|
613 |
+
# return url.endswith(".html") or url.endswith(".htm")
|
614 |
|
615 |
class CustomCrawler:
|
616 |
def __init__(
|