one-way clipboard sharing under restriction

use case

assume your are working with 2 different computers in 2 different networks with one has root permissions and the other one is restricted as much as possible, like you aren't able:

• to install your own applications
• to visit websites for sharing content
• to call urls which tunnels to your localhost via e.g. ngrok

in adition, you aren't able to configure your router to accept trafic from outsite. beside that, you only want to share your clipboard in one-way from high privileged computer to low privileged computer.

in such a confusing situation this script will make your day.

how it works

• a c++ application based on Qt will watch your clipboard
• a clipboard can hold 3 types of data. this are: image, html, text
• the c++ application will render predefined templates on clipboard change depending on the data type. difined in: ./assets/in/*
• the output will be exposed via simple http server to your localhost on port 8082.
• over ssh.localhost.run your localhost will be ssh tunneled to outsite with a generic url, so you will be able to connect with your second computer over this url

authentification

change basic auth information under run.sh. per defaul your authentification data is echo $(whoami):$(whoami)

usage

first of all: change in ./run.sh your OS_NAME=linux # supported: macos, linux.

for privileged computer: just run: ./run.sh

for restricted computer: open the url given by ./run.sh. for now, you need to refresh via F5 / ctrl+R manually. it will refresh automatically, if it detects changes (checks every 0.5 second)

information: limitation on macOS: you need to put the application clipboard_transport to the foreground. more information click here.

special information:

under linux you can have an application for adding that to the favorits by running:

please update the last line of ./Clipboard_Transport.desktop

sudo mv ./Clipboard_Transport.desktop ~/.local/share/applications/
sudo update-desktop-database

under unix based systems you can add it to your binaries by running:

ln -s ~/clipboard_transport/run.sh /usr/local/bin/clipboard_transport -f

todos:

• automatically copying in clipboard via browser
• add binaries for linux
• image: support different image formats (works only with png now)
• auto reload
• add codemirror to data type text
• add galery template for data type image
• add download button for data type image
• add template for data type html