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parsel.py
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parsel.py
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from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as ec
from selenium.webdriver.common.proxy import Proxy, ProxyType
import logging
from joblib import Parallel, delayed
from proxybroker import Broker
import asyncio
import random
import json
from tqdm import tqdm
WEBDRIVER_PATH = 'webdrivers/chromedriver'
FIREFOX = 'webdrivers/geckodriver'
OUTFILE = 'parsed/paras.json'
URL = 'https://otvet.mail.ru/'
PROXY_NUM = 30
JOBS = 4
PROXY = ''
user_agent_list = [
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36',
'Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36',
'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36']
class Parser:
def __init__(self):
self.logger = logging.getLogger(__name__)
self.update_ua()
self.current_proxy = ''
self.valid_proxys = self.get_vaild_proxy_list()
def update_ua(self):
self.cur_ua = random.choice(user_agent_list)
self.logger.info(f"UserAgent updated: {self.cur_ua}")
def get_firefox(self, proxy):
options = webdriver.FirefoxOptions()
options.add_argument('--headless')
proxy = Proxy({
'proxyType': ProxyType.MANUAL,
'httpProxy': proxy,
'ftpProxy': proxy,
'sslProxy': proxy,
'noProxy': ''
})
driver = webdriver.Firefox(executable_path='webdrivers/geckodriver', options=options, proxy=proxy)
return driver
#
# def get_webdriver(self, proxy):
# options = webdriver.ChromeOptions()
# options.add_argument('--headless')
# options.add_argument('--no-sandbox')
# options.add_argument('--disable-dev-shm-usage')
#
# caps = webdriver.DesiredCapabilities.CHROME
# caps['marionette'] = True
#
# caps['proxy'] = {
# "proxyType": "MANUAL",
# "httpProxy": proxy,
# "ftpProxy": proxy,
# "sslProxy": proxy
# }
#
# driver = webdriver.Chrome(WEBDRIVER_PATH, options=options)#, desired_capabilities=caps)
#
# return driver
def get_vaild_proxy_list(self):
proxy = self.getProxies(PROXY_NUM)
# valid_proxys = []
# i = 0
# pr = ''
# while i < len(proxy):
# pr = proxy[i]
# self.logger.debug(f'check {i} proxy: {pr}')
# driver = self.get_firefox(pr)
# driver.get(URL)
# page_text = driver.page_source
# i += 1
# if len(page_text) > 50:
# valid_proxys.append(pr)
# # break
# if pr == '':
# raise TimeoutError('Not find proxy!')
return proxy
def update_proxy(self):
self.current_proxy = self.valid_proxys.pop()
self.logger.info(f"proxy updated {self.current_proxy}")
def getProxies(self, n):
async def show(proxies):
p = []
while True:
proxy = await proxies.get()
if proxy is None: break
a = f"{proxy.host}:{proxy.port}"
p.append(a)
return p
proxies = asyncio.Queue()
broker = Broker(proxies)
tasks = asyncio.gather(broker.find(types=['HTTP', 'HTTPS'],
countries=['CZ', 'DE', 'RU', 'FR', 'IT'],
limit=n), show(proxies))
loop = asyncio.get_event_loop()
return loop.run_until_complete(tasks)[1]
def get_search_res(self, request):
driver = self.get_firefox(self.current_proxy)
'''можно ускорить поиск если создать пул воркеров и не пересоздавать каждый раз браузер'''
driver.get(URL)
'''
тут проверка если заблочили, условие (какой-то элемент на странице обычно, что слишком много заросов с ip)
если заблочили, меняешь ip на новый и перезагружаешь
'''
# if len(driver.page_source < 50):
# self.update_proxy()
# driver = self.get_firefox(self.current_proxy)
# driver.get(get_firefox)
'''
тут функционал selenium как находить элементы страницы
'''
search = driver.find_element_by_name('q')
search.click()
search.clear()
search.send_keys(request)
search.submit()
timeout = 5
samples = []
for i in range(1, 6):
'''
тут функционал selenium как находить элементы страницы, на странице сайта через инструмент разработчик
находишь нужный xpath
'''
xpath = f'//*[@id="ColumnCenter"]/div/div/div[3]/div/div[{i}]/a[2]'
driver.wait = WebDriverWait(driver, timeout)
try:
'''
ждет пока загрузится нужный элемент'''
element = driver.wait.until(
ec.presence_of_element_located(
(By.XPATH, xpath)
))
except:
self.logger.info(f'error for {driver.current_url}')
break
samples.append(element.text)
driver.close()
return {request: samples}
def main():
logger = logging.getLogger(__name__)
tr = Parser()
sents = list(range(12))
paras = Parallel(n_jobs=JOBS)(delayed(tr.get_search_res)(chunk) for chunk in tqdm(sents))
#paras = [tr.get_search_res(chunk) for chunk in tqdm(sents)]
with open(OUTFILE, 'w') as out:
json.dump(paras, out, indent=4, ensure_ascii=False)
logger.info("Done.")
if __name__ == "__main__":
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', handlers=[
# logging.FileHandler("debug.log"),
logging.StreamHandler()
], level=logging.INFO)
main()