1 Commits

Author SHA1 Message Date
laktionov-as 3099949f6c Написали класс для сканирования 2026-06-10 19:40:24 +03:00
+75 -15
View File
@@ -1,19 +1,79 @@
import requests
from bs4 import BeautifulSoup
import re
import sqlite3
from datetime import datetime
class Spyder:
def __init__(self):
self.db_name = 'database.db'
self.conn = sqlite3.connect(self.db_name)
self.cursor = self.conn.cursor()
def init_db(self):
query = '''CREATE TABLE links(
id INTEGER PRIMARY KEY AUTOINCREMENT,
link TEXT NOT NULL,
last_scan INTEGER DEFAULT 0,
title TEXT DEFAULT ''
)'''
self.cursor.execute(query)
def scan(self,url):
if url.endswith('.pdf'):
return
headers = {
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36'
}
try:
response = requests.get(
url,
headers=headers,
timeout=5
)
except:
self.update_url(url,'Scan error')
return
html = response.text
soup = BeautifulSoup(html,'html.parser')
result = soup.find_all("a", href=True)
title = soup.title.text
self.update_url(url,title)
for el in result:
if el['href'].endswith('.pdf'):
continue
if not el['href'].startswith('http'):
match = re.findall(r'https?://[A-Za-z0-9.-]+',url)
link = f"{match[0]}{el['href']}"
else:
link = el['href']
query = f'SELECT id FROM links WHERE link = ?'
self.cursor.execute(query,(link,))
if self.cursor.fetchone():
continue
query = f'INSERT INTO links(link) VALUES(?)'
self.cursor.execute(query,(link,))
self.conn.commit()
def update_url(self,url,title):
query = "SELECT id FROM links WHERE link = ?"
self.cursor.execute(query,(url,))
link_id = self.cursor.fetchone()
if link_id:
query = "UPDATE links SET title=?, last_scan=? WHERE id=?"
self.cursor.execute(query,(title,datetime.now().timestamp(),link_id[0]))
self.conn.commit()
def get_url(self):
query = "SELECT link FROM links ORDER BY last_scan LIMIT 1"
self.cursor.execute(query)
return self.cursor.fetchone()
def close(self):
self.conn.close()
if __name__ == '__main__':
spyder = Spyder()
#spyder.init_db()
#spyder.scan('https://habr.com/ru/news/1046177/')
for _ in range(5):
url = spyder.get_url()
print(url[0])
spyder.scan(url[0])
spyder.close()
headers = {
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36'
}
response = requests.get(
'https://online.top-academy.ru/education/ochno',
headers=headers
)
html = response.text
soup = BeautifulSoup(html,'html.parser')
result = soup.find_all("a", class_='styles_container__Yf7Qk')
for el in result:
name = el.find("span")
name = re.search(r'<span>([^<>]+)</span>',str(name))
if name:
print(name.group(1))