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My internet connection is provided by the university. It is protected to a username/password combination. This means when I start up my computer, I have to start a web browser and open an arbitrary website. I am then redirected to a page, which (among other things) contains two forms. In these I have to input username and password. I managed to do this with firefox (which can save the password) and also with links (which loads faster and from the command line).

Is there any way to automate the login process using a bash script? This would allow doing the login when booting, so that it is already there when I start the X server.

Tim
  • 2,202

6 Answers6

21

You can try it out with curl, you can Simply use curl like this to login to web page :

curl --user name:password http://somesite.com -v

You can pass Data to website like this from Stackoverflow answer 

    curl -b cookies.txt -c cookies.txt --data "Username=xx&Password=xx&Login=Login" [urlthatyour form submits]

you need cookies if you want to make another curl request after logging in. the session id in cookies will help next curl request authorized.

If you don't want cookies you can use

curl --data "Username=xx&Password=xx&Login=Login" [url that your form submits]

You can additionally refer here for Special Commands

Community
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BlueBerry - Vignesh4303
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7

I finally found a way to automatically log in using elinks. It works and it is even easy to configure!

Two options need to be set. This can done by adding the following lines in ~/.elinks/elinks.conf (if the file is not there, create one) or by changing the values at the respective positions in the options dialog within elinks:

    # Save username and password for later use
set document.browse.forms.show_formhist = 1
    # Do not ask for confirmation before a form is submitted
set document.browse.forms.confirm_submit = 0

Steps for a scriptable autologin are then:

  • Set those two options
  • Open the login page in elinks, fill the forms and submit them.
  • Choose to remember name and password for later use.
  • Close elinks
  • Run elinks -auto-submit http://somesite.com

The latter command should perform the automatic login without further user interaction.

I actually use timeout 1m elinks -auto-submit http://somesite.com &, so that I do not have an idling elinks process running in the background all the time.

Uttam Pal
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Tim
  • 2,202
3

A simple way to script this is with Selenium.

You can use their Firefox "Test Recorder" plugin to record a test of yourself logging in to the network, and then play back the test.

Moshe Katz
  • 3,488
1

Yes, there is a very simple way to login to your university's internet.You can use the 'Lynx' web browser which is a text-based browser, designed for use on terminal. So, here is the way:

$ echo "username=myname&password=mypassword" | lynx "url of the form" -post_data

where, 'username' is the name of the field corresponding to the user name in the form and 'password' is the name of the field corresponding to the password field and 'myname' and 'mypassword' are the corresponding values to be filled in the form. You can find field name by using 'Inspect Element' from any browser. I tried with curl as directed in the answer by BlueBerry - Vignesh4303 but didn't work.

Kushagra Sharma
  • 11
0

You can get an add-on for your browser which will auto log-in to websites with saved passwords. I used AutoAuth with firefox. Then you login once and save your credentials, then write a script that just has

#!/bin/bash
firefox https://website address goes here

When executed, it will go and auto login. I tried with multiple sites and it worked well.

myfavoritenoisemaker
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-1

to access quicker to your login url web without remembering username or password

#make a script below

echo "username" |xclip -sel clip |chromium-browser (input url address for login here https://...)

sleep 5

echo "password" |xclip -sel clip

Explanation of the script above

  1. echo "username" |xclip -sel clip <-- will copy to clipboard your username

  2. .... |chromium-browser` (input url address for login https://...) <-- the second part of the first line will open the login url https://.... in the chromium browser.

or open with another version of google chrome browser use below command:

google-chrome (input url address for login https://...)

to open in firefox

firefox (input url address for login https://...)

  1. sleep 5 <------ will wait for 5 seconds until execute the next command

In sleep 5 seconds can be arrange longer if the usual login loading in browser will take more than 5 seconds

  1. echo "password" |xclip -sel clip <---- will copy the password in clipboard

So When the command is executed:

  1. it will copy username in the clipboard

  2. will open the url login to the browser

  3. if cursor already in the login box, press in keyboard Ctrl-v to paste the username

  4. wait for 5 seconds (usually i count 1, 2, 3 .. to 10)

  5. tab to the password box and Ctrl-V will input the password

  6. press enter to login.

To make it simple you can separately make a script for the copy to clipboard command as explain on my other tutorial below.

https://hopelinux.blogspot.com/2022/05/copy-to-clipboard-from-command-line.html

Joe Jacobs
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