install.sh

#!/data/data/com.termux/files/usr/bin/bash
# termux-reverse-ssh by ustcpetergu
# License: GPLv3

function fail
{
    echo "Failed. "
    exit 255
}

echo "Gather information..."
read -p "Enter remote server username: " user
read -p "Enter remote server address: " address
read -p "Enter remote server port: " port
read -p "Enter trigger URL: " url

echo ""

echo "Generate ssh key..."
idrsa="/data/data/com.termux/files/home/.ssh/id_rsa_trs"
ssh-keygen -t rsa -f "$idrsa" -q -P "" || fail

echo "Upload key(you'll need to enter password)..."
ssh-copy-id -i $idrsa ${user}@${address} -p $port || fail

cat > ~/.trs_config << EOF
# this trs config is generated by install.sh
user="$user"
address="$address"
port="$port"
idrsa="$idrsa"
url="$url"
EOF

echo "Install auto start script..."
cdir=$(pwd)
mkdir -p ~/.termux/boot 2>/dev/null
cat > ~/.termux/boot/90trs.sh << EOF
#!/data/data/com.termux/files/usr/bin/bash
# this trs auto-launch script is generated by install.sh
setsid bash $cdir/trs.sh >/dev/null 2>&1 < /dev/null &
sleep 1
EOF

echo "Finished. "