How to detect downloaded file in selenium

Add a comment. Here are my two cents: According to the article Browser detection using the user agent serving different webpages or services to different browsers is usually not among the best of ideas. Considerations for browser detection The idea behind detecting the browser can be either of the following: Trying to work around a specific bug in some specific variant or specific version of a webbrowser.

Trying to check for the existence of a specific feature that some browsers don't yet support. Trying to provide different HTML depending on which browser is being used.

Alternative of browser detection through UserAgents Some of the alternatives of browser detection are as follows: Implementing a test to detect how the browser implements the API of a feature and determine how to use it from that. An example was Chrome unflagged experimental lookbehind support in regular expressions. Adapting the design technique of Progressive enhancement which would involve developing a website in layers , using a bottom-up approach, starting with a simpler layer and improving the capabilities of the site in successive layers, each using more features.

Adapting the top-down approach of Graceful degradation in which we build the best possible site using all the features we want and then tweak it to make it work on older browsers. DebanjanB DebanjanB k 30 30 gold badges silver badges bronze badges. I tested your python code on bloomberg. Still recognize me as bot. Example of how it's implemented on wellsfargo.

Shubham Jain Obfuscating JavaScripts result I have checked the chromedriver source code. Maybe they check the modifications that are caused by chromedriver js execution : Edit 1: Chrome 'navigator' parameters modification I discovered there are some parameters in 'navigator' that briefly uncover using of chromedriver. These are the parameters: "navigator. On automated mode it's 'true'. So I added some fake elements to fool the plugin length checking process.

ChromeOptions options. Kobi K Kobi K 6, 5 5 gold badges 36 36 silver badges 77 77 bronze badges. I meant without the website in question's source code.

It's hard to tell what they are checking against. MDN The variable is managed by the flag --enable-automation in chrome. For instance Go : package main import "github. NewRemote caps, fmt. I just tested webdriver with Firefox 55 and I can confirm this is not true. The variable window. Update: I tested with Firefox 65, and this is true: window. Chrome driver. Usman Gani Usman Gani 2 2 silver badges 7 7 bronze badges.

Applying colossatr0n 's answer doesn't fix, I applied yours after colossatr0n's. Now it works! The workaround for that will be to override the user agent value, for example in Java: chromeOptions. Adi Ohana Adi Ohana 2 2 gold badges 13 13 silver badges 18 18 bronze badges. I've already used that website and the fingerprint is identical to my normal browser. Also I'm not automating anything. I'm just browsing as normal.

The mouse is already at a specific location where I know a link will appear once the page loads. I never move the mouse. I press the left mouse button once this is necessary to take focus from the console where Python is running to the browser. I press the left mouse button again remember, cursor is above a given link.

The link opens normally, as it should. The link doesn't open, but I am taken to a sign up page. My belief is that Selenium injects something into the page via javascript to find and access elements. This injection is what I believe they are detecting. I had done similar test with same results. I could send Enter tab or send keys.

The moment I access elements the page stoped working. So If driver injects some javascript into the browser. We could just encrypt that javascript using chrome extension and decrypt on next page using same extension. I will try to look at it following days. Could you provide a link to test this behavior?

A website can use a variety of services and methods to detect bots. The best way is just detect selenium through the fingerprints. But there are many others. Bassel Samman Bassel Samman 4 4 silver badges 11 11 bronze badges. I think you are on the correct path. I tested with my setup and replaced the User Agent with a valid user agent string that successfully went through and received the same result, stubhub blocked the request.

This topic is very vast, I would say if you don't understand it, and you want to understand it, here is not the right place. Start with owasp. Look into penetration testing and web security. Also, like I said before, look into modsecurity and WAF for specifically this topic. If it was an HTTP header issue then wouldn't the normal browser get blocked?

The HTTP headers are exactly the same. Also what exactly am I looking at with that github link? Have you tried using selenium to go on stubhub? Something is very very off. I'm sorry for the confusion. I'll look into that and you don't have to help me anymore if you don't want to. Most of my experience is in programming systems applications, so I was not familiar with these modsecurity rules that you're talking about. I'll take a look and try to educate myself.

I'm not trying to bypass anything, I was just interested in knowing how these websites detect a user using selenium. If you want to advance your web scraping skills, the below courses will definitely be valuable for you, check them out:.

Check the full code here. Learn how to perform automated browser testing with Microsoft Edge browser and Selenium library in Python. Learn how you can scrape forms from web pages, as well as filling and submitting them using requests html and beautiful soup in Python. Learn how you can use IMAP protocol to extract, parse and read emails from outlook, gmail and other email providers as well as downloading attachments using imaplib module in Python. Sharing is caring!

How to Extract and Submit Web Forms from a URL using Python Learn how you can scrape forms from web pages, as well as filling and submitting them using requests html and beautiful soup in Python. How to Read Emails in Python Learn how you can use IMAP protocol to extract, parse and read emails from outlook, gmail and other email providers as well as downloading attachments using imaplib module in Python.

I am getting this error selenium. Anyone got the solution for this issue? Missing one, any one, would cause me to get the same error. I was using selenium in a docker FROM python As stated in this other answer : This error message Piercarlo Slavazza Piercarlo Slavazza 1 1 gold badge 3 3 silver badges 9 9 bronze badges.

OMG Thank you. I was making a few changes to our docker container and I accidentally left out xvfb. I never would have found this if you hadn't had left this here This is almost exactly that worked for me, see my answer here stackoverflow. Chris Moschini Chris Moschini Thank you! This was the bug I was looking for, it's headless not --headless — Scout It happens when chromedriver fails to figure out what debugging port chrome is using. Is it a constant port?

Or where can I look for it? Sergiy Konoplyaniy Sergiy Konoplyaniy 3 3 silver badges 9 9 bronze badges. In my case it happened when I've tried to use my default user profile Resolution: kill all chrome.

I had a similar issue, but in linux - my chrome processes were not properly exited after the script crashed, and they were being reused incorrectly.

Where do we add this code? I see no C code in my. Google Chrome Version Osanda Deshan Osanda Deshan 1, 2 2 gold badges 11 11 silver badges 25 25 bronze badges.

Non-root user worked for me, I had the correct chrome driver version for the chromium. No solution worked for my. Alex Alex In our case, the error happened because we had the following two lines in code: System. In our setBinary, we tried to set chrome driver, which seems a mistake. Where did you have this code? All I have is a. Hahahaha, this solved issue for me, but not removing this line and adding it!

Thank you Seems driver couldn't find my executable using a default path. But why id didn't just say this, showing strange messages Install latest opera driver if you already have an opera driver install, you have to remove it first use sudo rm Sample selenium code from selenium import webdriver from selenium. Opera driver. Adrian Jimenez Adrian Jimenez 4 4 silver badges 15 15 bronze badges. Codev Codev 13 13 silver badges 26 26 bronze badges. Eric Dauenhauer Eric Dauenhauer 5 5 silver badges 16 16 bronze badges.

Could you describe how you used goog:chromeOptions a little more? Unfortunately I recently left the company where I implemented this CPak so I don't have a code example in front of me. I was using the Ruby driver and I believe it was just a hash passed to ChromeOptions. I'm sorry I don't have an exact snippet for the syntax.

Had the same issue. I am running the selenium script on Google cloud VM. Tejas Saini Tejas Saini 11 4 4 bronze badges. I see two possible reasons for this message: Chrome is really slow during startup - for example due to lack of system resources - mainly CPU or memory. In this case it can happen that sometimes chrome manage to start in time limit and sometimes not. There is another issue which prevents chrome to start - missing or broken dependency, wrong configuration etc.

In such case this error message is not really helpful and you should find another log message which explain the true reason of the failure. Jortega Jortega 2, 1 1 gold badge 15 15 silver badges 18 18 bronze badges. JUnit has been important in the development of test-driven development, and is one of a family of unit testing frameworks, which is collectively known as xUnit that originated with SUnit.

JUnit allows the developer to incrementally build test suites to measure progress and detect unintended side effects. By now, we have seen the benefits of using JUnit, but the reason we are discussing it right now is Cucumber framework. On one hand, Cucumber is providing a way for non-technical person to define test cases for a product, and on the other hand, our expectation is for smooth and timely execution of such test cases.

JUnit acts as a bridge between these two.