#!/bin/sh

## Author:  druckdev
## Created: 2020-06-05
##
## A script that modifies Zoom links for the use in browsers, opens it then in a
## private chromium window and puts the password into the clipboard. If no
## argument is given the link is taken out of the clipboard.
##
## The reason behind the choice of Chromium is that my Firefox does weird things
## when used in scripts and that I wanted to run Zoom separately from my normal
## Firefox instances. (although this should be solvable by separate Firefox
## profiles.)

# Check if necessary commands exist
command -v firefox >/dev/null 2>&1 || return 1
command -v xclip >/dev/null 2>&1 || return 1

# If no argument is given, set the clipboard as argument
[ $# -gt 0 ] || set "$(xclip -selection c -o)"
# Check for right format
echo "$1" | grep -Eq "^https://tu-berlin.zoom.us/(j|wc/join)/[0-9]*\?pwd=.+" \
|| return 1

# Make link work for browser joining
link="$(echo "${1%?pwd=*}" | sed 's_/j/_/wc/join/_')"
# Open link in private browser
firefox --no-remote -P zoom --private-window "$link" >/dev/null 2>&1 &
# Put password in clipboard if successful
(( $? )) || echo -n "${1##*pwd=}" | xclip -selection c