Template
97 lines
3.1 KiB
Bash
97 lines
3.1 KiB
Bash
#!/bin/bash
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# ==============================================================================
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# 1. SETTINGS & GLOBALS
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# ==============================================================================
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# Exit immediately if a command exits with a non-zero status
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set -e
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# Determine the directory where this script resides
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$SCRIPT_DIR"
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# Global variables
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server_pubkey=""
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ips=""
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users=""
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# ==============================================================================
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# 2. HELPER FUNCTIONS
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# ==============================================================================
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# Load environment variable of the script
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environment_var() {
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echo "--- Starting Environment & Pre-flight Checks ---"
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# --- .env LOADING ---
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# This safely loads the variables from .env without touching other files
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if [ -f "$SCRIPT_DIR/.env" ]; then
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set -a
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source "$SCRIPT_DIR/.env"
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set +a
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echo "[✔] Environment variables loaded."
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else
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echo "[!] No .env file found. Using defaults."
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fi
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# --- Variable Checks ---
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server_pubkey=$(cat ${WG0_DIR}/publickey)
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ips=$(grep -i '^\s*AllowedIPs\s*=\s*' "${WG0_DIR}/wg0.conf" | sed 's/^\s*AllowedIPs\s*=\s*//I; s/\s*$//')
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users=$(grep -i '^\s*# BEGIN_PEER \s*' "${WG0_DIR}/wg0.conf" | sed 's/^\s*# BEGIN_PEER \s*//i; s/\s*$//')
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}
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# Find the last registered client IP
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find_last_ip() {
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# Find the last ip an create the next ip
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if [ -n "$ips" ]; then
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last=$(printf "%s\n" "$ips" | tail -1)
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addr=${last%/*} # strip /32 if present
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IFS=. read -r a b c d <<< "$addr"
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next_ip="10.0.0.$((d + 1))"
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printf "Last CIDR: %s\nNext IP: %s/32\n" "$last" "$next_ip"
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else
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next_ip="10.0.0.2"
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printf "No peers found, starting at %s/32\n" "$next_ip"
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fi
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}
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# Show the template of the client's configuration file
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client_show_template() {
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# Show template from .client_template file
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template_file="${TOOLS_DIR}/client_template"
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if [ -f "$template_file" ]; then
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printf "\n--- Wireguard client template (generated from %s) ---\n" "$template_file"
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# Process template: replace placeholders
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sed -e "s|<%CLIENT_IP%>|${next_ip}|g" \
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-e "s|<%SERVER_PUBLIC_KEY%>|${server_pubkey}|g" \
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-e "s|<%DOMAIN_NAME%>|${DOMAIN_NAME}|g" \
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"$template_file"
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else
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printf "\n--- Error: Template file %s not found ---\n" "$template_file"
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exit 1
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fi
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}
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# ==============================================================================
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# 3. MAIN LOGIC
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# ==============================================================================
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main() {
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# Load environment variables first
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environment_var
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# Print current values
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printf "Public Key of the server: %s\n" "$server_pubkey"
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printf "List of current clients:\n"
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paste -d '|' <(echo "$users") <(echo "$ips") | while IFS='|' read -r user ip; do
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echo "User: $user -> IP: $ip"
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done
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printf "\n"
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# Find the last IP
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find_last_ip
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# Show client template
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client_show_template
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}
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# Invoke main
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main "$@" |