CPYNET — Online Clipboard for Copy-Paste Sharing via curl

# cpynet installer - fetches the cpy/pst shell functions from https://cpynet.com/alias,
# adds a source line to your shell's rc file (once, never duplicated), and
# loads them into this session right now.
#
# Dot-sourced (". install.sh"), not run as a subprocess - that's what makes
# cpy/pst usable immediately in this terminal, not just in new ones.
CPYNET_RC=~/.bashrc
[ -n "$ZSH_VERSION" ] && CPYNET_RC=~/.zshrc
if curl -s https://cpynet.com/alias -o ~/.cpy.sh && bash -n ~/.cpy.sh; then
	grep -qxF 'source ~/.cpy.sh' "$CPYNET_RC" || echo 'source ~/.cpy.sh' >> "$CPYNET_RC"
	. ~/.cpy.sh
	echo "cpynet installed - cpy and pst are ready"
else
	echo "install failed, try again"
fi
unset CPYNET_RC

cpy() {
	local password="" ttl="" reads="" e2e="" a
	for a in "$@"; do case "$a" in
		-password=*) password="${a#-password=}" ;;
		-ttl=*) ttl="${a#-ttl=}" ;;
		-reads=*) reads="${a#-reads=}" ;;
		-e) e2e=1 ;;
	esac; done
	local qs=""
	[ -n "$ttl" ] && qs="ttl=$ttl"
	[ -n "$reads" ] && qs="${qs:+$qs&}reads=$reads"
	local target="https://llmtag.com/"
	[ -n "$qs" ] && target="https://llmtag.com/?$qs"
	local input key=""
	if [ -n "$e2e" ]; then
		key=$(openssl rand -base64 24)
		input=$(openssl enc -aes-256-cbc -pbkdf2 -salt -a -A -pass "pass:$key") || return 1
	else
		input=$(cat)
	fi
	local url
	if [ -n "$password" ]; then
		url=$(printf '%s' "$input" | curl -sS --fail-with-body -L -H "X-Password: $password" --data-binary @- "$target") || return 1
	else
		url=$(printf '%s' "$input" | curl -sS --fail-with-body -L --data-binary @- "$target") || return 1
	fi
	local bare="${url%%\?*}"
	echo "${bare##*/}"
	echo "curl \"$url\""
	if [ -n "$key" ]; then
		echo "key (share separately, never with the link/code): $key"
	fi
}
pst() {
	local password="" id="" key="" a
	for a in "$@"; do case "$a" in
		-password=*) password="${a#-password=}" ;;
		-key=*) key="${a#-key=}" ;;
		*) id="$a" ;;
	esac; done
	if [ -z "$id" ]; then echo "usage: pst <code> [-password=xxx] [-key=xxx]" >&2; return 1; fi
	local target="https://llmtag.com/$id"
	[ -n "$password" ] && target="$target?p=$password"
	local text
	text=$(curl -sS --fail-with-body "$target") || return 1
	if [ -n "$key" ]; then
		text=$(printf '%s' "$text" | openssl enc -d -aes-256-cbc -pbkdf2 -a -A -pass "pass:$key") || { echo "decrypt failed - wrong key?" >&2; return 1; }
	fi
	printf '%s\n' "$text"
	if command -v pbcopy >/dev/null 2>&1; then printf '%s' "$text" | pbcopy
	elif command -v wl-copy >/dev/null 2>&1; then printf '%s' "$text" | wl-copy
	elif command -v xclip >/dev/null 2>&1; then printf '%s' "$text" | xclip -selection clipboard
	elif command -v xsel >/dev/null 2>&1; then printf '%s' "$text" | xsel --clipboard
	elif command -v clip.exe >/dev/null 2>&1; then printf '%s' "$text" | clip.exe
	fi
}