I have the following code in Python
:
from selenium.webdriver import Firefox
from contextlib import closing
with closing(Firefox()) as browser:
browser.get(url)
I would like to print the user-agent HTTP header and possibly change it. Is it possible?
This question is related to
python
selenium
http-headers
user-agent
To build on Louis's helpful answer...
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
...
caps = DesiredCapabilities.PHANTOMJS
caps["phantomjs.page.settings.userAgent"] = "whatever you want"
driver = webdriver.PhantomJS(desired_capabilities=caps)
The only minor issue is that, unlike for Firefox and Chrome, this does not return your custom setting:
driver.execute_script("return navigator.userAgent")
So, if anyone figures out how to do that in PhantomJS, please edit my answer or add a comment below! Cheers.
This is a short solution to change the request UserAgent on the fly.
Change UserAgent of a request with Chrome
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
driver = webdriver.Chrome(driver_path)
driver.execute_cdp_cmd('Network.setUserAgentOverride', {"userAgent":"python 2.7", "platform":"Windows"})
driver.get('http://amiunique.org')
then return your useragent:
agent = driver.execute_script("return navigator.userAgent")
Some sources
The source code of webdriver.py from SeleniumHQ (https://github.com/SeleniumHQ/selenium/blob/11c25d75bd7ed22e6172d6a2a795a1d195fb0875/py/selenium/webdriver/chrome/webdriver.py) extends its functionalities through the Chrome Devtools Protocol
def execute_cdp_cmd(self, cmd, cmd_args):
"""
Execute Chrome Devtools Protocol command and get returned result
We can use the Chrome Devtools Protocol Viewer to list more extended functionalities (https://chromedevtools.github.io/devtools-protocol/tot/Network#method-setUserAgentOverride) as well as the parameters type to use.
To build on JJC's helpful answer that builds on Louis's helpful answer...
With PhantomJS 2.1.1-windows this line works:
driver.execute_script("return navigator.userAgent")
If it doesn't work, you can still get the user agent via the log (to build on Mma's answer):
from selenium import webdriver
import json
from fake_useragent import UserAgent
dcap = dict(DesiredCapabilities.PHANTOMJS)
dcap["phantomjs.page.settings.userAgent"] = (UserAgent().random)
driver = webdriver.PhantomJS(executable_path=r"your_path", desired_capabilities=dcap)
har = json.loads(driver.get_log('har')[0]['message']) # get the log
print('user agent: ', har['log']['entries'][0]['request']['headers'][1]['value'])
Source: Stackoverflow.com