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install.sh

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+#!/bin/bash
+
+set -e
+
+# Ensure the script is run as root
+if [[ $EUID -ne 0 ]]; then
+    echo "Error: This script must be run as root."
+    exit 1
+fi
+
+# Determine the directory where the script and associated files are located
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+echo "=== Installing autossh ==="
+if ! command -v autossh &>/dev/null; then
+    if command -v apt-get &>/dev/null; then
+        apt-get update
+        apt-get install -y autossh
+    elif command -v yum &>/dev/null; then
+        yum install -y autossh
+    elif command -v dnf &>/dev/null; then
+        dnf install -y autossh
+    else
+        echo "No supported package manager found. Please install autossh manually."
+        exit 1
+    fi
+    echo "autossh installed successfully."
+else
+    echo "autossh is already installed."
+fi
+
+echo "=== Creating group 'wra' ==="
+if ! getent group wra > /dev/null; then
+    groupadd wra
+    echo "Group 'wra' created."
+else
+    echo "Group 'wra' already exists."
+fi
+
+echo "=== Creating user 'wra' ==="
+if ! id -u wra >/dev/null 2>&1; then
+    useradd -m -g wra -s /bin/bash wra
+    echo "User 'wra' created."
+else
+    echo "User 'wra' already exists."
+fi
+
+echo "=== Creating /etc/wormhole-ra directory ==="
+mkdir -p /etc/wormhole-ra
+
+echo "=== Copying tunnel.conf and tunnel.sh to /etc/wormhole-ra ==="
+if [[ -f "$SCRIPT_DIR/tunnel.conf" ]]; then
+    mv "$SCRIPT_DIR/tunnel.conf" /etc/wormhole-ra/
+    echo "tunnel.conf copied."
+else
+    echo "Warning: tunnel.conf not found in $SCRIPT_DIR. Skipping..."
+fi
+
+if [[ -f "$SCRIPT_DIR/tunnel.sh" ]]; then
+    mv "$SCRIPT_DIR/tunnel.sh" /etc/wormhole-ra/
+    echo "tunnel.sh copied."
+else
+    echo "Warning: tunnel.sh not found in $SCRIPT_DIR. Skipping..."
+fi
+
+echo "=== Changing ownership of /etc/wormhole-ra to user 'wra' ==="
+chown -R wra:wra /etc/wormhole-ra
+
+echo "=== Copying wormhole-ra.service to /etc/systemd/system/ ==="
+if [[ -f "$SCRIPT_DIR/wormhole-ra.service" ]]; then
+    mv "$SCRIPT_DIR/wormhole-ra.service" /etc/systemd/system/
+    echo "wormhole-ra.service copied."
+else
+    echo "Warning: wormhole-ra.service not found in $SCRIPT_DIR. Skipping..."
+fi
+
+echo "=== Generating SSH key pair for user 'wra' ==="
+SSH_DIR="/home/wra/.ssh"
+if [[ ! -d "$SSH_DIR" ]]; then
+    mkdir -p "$SSH_DIR"
+    chown wra:wra "$SSH_DIR"
+    chmod 700 "$SSH_DIR"
+fi
+
+# Use ed25519 algorithm for the SSH key pair.
+if [[ ! -f "$SSH_DIR/id_ed25519.pub" ]]; then
+    su - wra -c "ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519 -N '' -q"
+    echo "SSH key pair generated for user 'wra'."
+else
+    echo "SSH key pair for user 'wra' already exists."
+fi
+
+echo "---------------------------------------------"
+echo "SSH Public Key for user 'wra':"
+cat "$SSH_DIR/id_ed25519.pub"
+echo "---------------------------------------------"
+echo "/!\ Please copy the above public key and add it to the .ssh/authorized_keys file in the home folder of the sshuser on your VPS."
+echo "[i] You'll also have to change GatewayPorts to yes in /etc/ssh/sshd_config to allow external ips to access the tunnel."
+echo "Installation complete."