如何在Python上使用selenium webdriver和browsermob代理捕获网络流量？

Question

我想通过在Python上使用Selenium Webdriver来捕获网络流量。因此，我必须使用代理（如BrowserMobProxy）

当我使用webdriver.Chrome时：

from browsermobproxy import Server

server = Server("~/browsermob-proxy")

server.start()
proxy = server.create_proxy()

from selenium import webdriver
co = webdriver.ChromeOptions()
co.add_argument('--proxy-server={host}:{port}'.format(host='localhost', port=proxy.port))

driver = webdriver.Chrome(executable_path = "~/chromedriver", chrome_options=co)

proxy.new_har
driver.get(url)
proxy.har # returns a HAR 

for ent in proxy.har['log']['entries']:
    print ent['request']['url']

网页已正确加载，所有请求都在HAR文件中可用和可访问。 但是当我使用webdriver.Firefox时：

# The same as above
# ...
from selenium import webdriver
profile  = webdriver.FirefoxProfile()
driver = webdriver.Firefox(firefox_profile=profile, proxy = proxy.selenium_proxy())

proxy.new_har
driver.get(url)
proxy.har # returns a HAR

for ent in proxy.har['log']['entries']:
    print ent['request']['url']

无法正确加载网页，并且HAR文件中的请求数小于应加载的请求数。

你知道第二段代码中的代理设置有什么问题吗？为了我的目的，我应该如何正确地使用webdriver.Firefox？

Answer 1

I am sharing my solution, this would not write any logs to any file
but you can collect all sort of messages such as Errors, 
Warnings, Logs, Info, Debug , CSS, XHR as well as Requests(traffic)

1. We are going to create Firefox profile so that we can enable option of 
"Persist Logs" on Firefox (you can try it to enable on your default browser and see 
if it launches with "Persist Logs" without creating firefox profile )

2. we need to modify the Firefox initialize code 
where this line will do magic : options.AddArgument("--jsconsole");

so complete Selenium Firefox code would be,  this will open Browser Console
everytime you execute your automation :

 else if (browser.Equals(Constant.Firefox))
            {

                var profileManager = new FirefoxProfileManager();
                FirefoxProfile profile = profileManager.GetProfile("ConsoleLogs");
                FirefoxDriverService service = FirefoxDriverService.CreateDefaultService(DrivePath);
                service.FirefoxBinaryPath = DrivePath;                
                profile.SetPreference("security.sandbox.content.level", 5);
                profile.SetPreference("dom.webnotifications.enabled", false);
                profile.AcceptUntrustedCertificates = true;
                FirefoxOptions options = new FirefoxOptions();
                options.AddArgument("--jsconsole");
                options.AcceptInsecureCertificates = true;
                options.Profile = profile;
                options.SetPreference("browser.popups.showPopupBlocker", false);
                driver = new FirefoxDriver(service.FirefoxBinaryPath, options, TimeSpan.FromSeconds(100));
                driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);               

            }

3. Now you can write your logic since you have traffic/ logging window open so don't 
go to next execution if test fails. That way Browser Console will keep your errors 
messages and help you to troubleshoot further 

Browser : Firefox  v 61 

How can you launch Browser Console for firefox:
1. open firefox (and give any URL )
2. Press Ctrl+Shift+J (or Cmd+Shift+J on a Mac) 

Link : https://developer.mozilla.org/en-US/docs/Tools/Browser_Console  

Answer 2

刚刚偶然发现这个项目https://github.com/derekargueta/selenium-profiler。吐出URL的所有网络数据。不应该很难破解并集成到你正在运行的任何测试中。

原始源：https://www.openhub.net/p/selenium-profiler

Answer 3

对我来说，下面的代码组件工作得很好。

profile = webdriver.FirefoxProfile()
profile.set_proxy(proxy.selenium_proxy())
driver = webdriver.Firefox(firefox_profile=profile)