mere-lock

mere-lock is a utility program to lock screen ( and system wise locking is in the plan). When the user invoked the program, it locks the screen and wais for user interaction - any key press or mouse activity. The program then prompts for the secret, usually the user's password, to unlock the screen. When the program is invoked without --password argument, it will match the password with the logged-in user password using the pam service.

User may wish to NOT using the system's user password, instead using a different one to unlock the screen - it can be done using --password argument.

The lock screen is quite configurable, such as

• change the background of the screen
  • color code
  • image path
• change or hide the logo used on the screen
  • image path
• change the background of the password prompt screen
  • color code or image path can
• change or hide the logo used in the password prompt screen
  • image path
• change the font color and size of the messages

TODOs:

• Restrict on wrong attempts (but why and how?)
  • Record the person who made false attemps? maybe capturing the face using webcam?
• VT locking
• System locking

Screenshots

more screenshots are available here.

Usage

Simply invoke the 'mere-lock' command. To get out of it, use your current login password.

$ mere-lock --strict

note: --strict option will force to validate the configuration used.

If the user wishes to use a temporary password, then the invocation command would be:

$ mere-lock --strict --password secret

If the user wishes to use a onetime password requested by screen locker, then the invocation command would be:

$ mere-lock --strict --password

note: onetime password is helpful for indirect invocation using any shortcut keys.

If the user wishes to use a calculated password or password generated by other program of choice, then the invocation command would be:

$ date "+%d%m%Y" | xargs mere-lock --strict --password

note: above command will set the passowrd return by date command at the time of invocation.

If the user wish to lock the screen for 15 minutes, and require the user's login password to unlock:

$ mere-lock --strict --timeout 15

Tips: you can generate a password while invoking, and pass it using xargs!

Dependencies

mere-lock requires following componnets

• C++11
• QtCore
• X11
• mere-utils
• mere-auth
• mere-config-lite
• mere-widgets

Build

$ git clone https://github.com/merelabs/mere-lock.git
$ cd mere-lock
$ qmake
$ make release

note: check all the dependencies are installed before building mere-lock.

Install

$ sudo make install

Support

If you find a bug, or have a feature suggestion, please log an issue. If you'd like to contribute, please read How to Contribute.

License

All the code in this repository is licensed under a BSD-2-Clause License.