问题
I am trying to retrieve the html code of a site using a headless chrome driver. However I get a "permission denied" message. If I use a "regular" driver it all works fine.
Is there any way to bypass that?
It's my first post so I do apologize for any potential mistakes in formatting
from selenium import webdriver
#Headless driver
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--no-sandbox')
driver1 = webdriver.Chrome(executable_path='./chromedriver', options=chrome_options,
service_args=['--verbose', '--log-path=/tmp/chromedriver.log'])
driver1.get('https://www.size.co.uk/')
html = driver1.page_source
html
The message I get is:
<html xmlns="http://www.w3.org/1999/xhtml"><head>\n<title>Access Denied</title>\n</head><body>\n<h1>Access Denied</h1>\n \nYou don\'t have permission to access "http://www.size.co.uk/" on this server.<p>\nReference #18.ac81655f.1548818550.73b12da\n\n\n</p></body></html>
Regular driver:
driver = webdriver.Chrome('./chromedriver')
driver.get('https://www.size.co.uk/')
html = driver.page_source
driver.quit()
html
Ideally, I'd like the output to be as in the latter case without having new windows popping up every couple seconds.
回答1:
Adding in the following code snippet got the page to return for me:
user_agent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.50 Safari/537.36'
chrome_options.add_argument('user-agent={0}'.format(user_agent))
The site is obviously checking for headless browsers and then denying them access. Here's an article on avoiding detection: Making Chrome Headless Undetectable
To get the user agent being used by the driver you can run the following command:
driver.execute_script("return navigator.userAgent")
Chromes headless user agent is something like this:
u'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/71.0.3578.98 Safari/537.36'
来源：https://stackoverflow.com/questions/54432980/how-to-access-a-site-via-a-headless-driver-without-being-denied-permission