refac: new logic to detecting a Wireguard interface

docker/entrypoint.sh

@@ -13,15 +13,15 @@ hash_password() {
 set_ini() {
   local section="$1" key="$2" value="$3"
   local current_value
-  
+
   # Add section if it doesn't exist
   grep -q "^\[${section}\]" "$config_file" \
     || printf "\n[%s]\n" "${section}" >> "$config_file"
-  
+
   # Check current value if key exists
   if grep -q "^[[:space:]]*${key}[[:space:]]*=" "$config_file"; then
     current_value=$(grep "^[[:space:]]*${key}[[:space:]]*=" "$config_file" | cut -d= -f2- | xargs)
-    
+
     # Don't display actual value if it's a password field
     if [[ "$key" == *"password"* ]]; then
       if [ "$current_value" = "$value" ]; then
@@ -40,7 +40,7 @@ set_ini() {
     fi
   else
     sed -i "/^\[${section}\]/a ${key} = ${value}" "$config_file"
-    
+
     # Don't display actual value if it's a password field
     if [[ "$key" == *"password"* ]]; then
       echo "- Added new setting $key (value hidden)"
@@ -61,58 +61,58 @@ echo "Starting the WGDashboard Docker container."
 
 ensure_installation() {
   echo "Quick-installing..."
-  
+
   # Make the wgd.sh script executable.
   chmod +x "${WGDASH}"/src/wgd.sh
   cd "${WGDASH}"/src || exit
-  
+
   # Github issue: https://github.com/donaldzou/WGDashboard/issues/723
   echo "Checking for stale pids..."
   if [[ -f ${WGDASH}/src/gunicorn.pid ]]; then
     echo "Found stale pid, removing..."
     rm ${WGDASH}/src/gunicorn.pid
   fi
-  
+
   # Removing clear shell command from the wgd.sh script to enhance docker logging.
   echo "Removing clear command from wgd.sh for better Docker logging."
   sed -i '/clear/d' ./wgd.sh
-  
+
   # Create required directories and links
   if [ ! -d "/data/db" ]; then
     echo "Creating database dir"
     mkdir -p /data/db
   fi
-  
+
   if [ ! -d "${WGDASH}/src/db" ]; then
     ln -s /data/db "${WGDASH}/src/db"
   fi
-  
+
   if [ ! -f "${config_file}" ]; then
     echo "Creating wg-dashboard.ini file"
     touch "${config_file}"
   fi
-  
+
   if [ ! -f "${WGDASH}/src/wg-dashboard.ini" ]; then
     ln -s "${config_file}" "${WGDASH}/src/wg-dashboard.ini"
   fi
 
   # Create the Python virtual environment.
   . "${WGDASH}/src/venv/bin/activate"
-  
+
   # Use the bash interpreter to install WGDashboard according to the wgd.sh script.
   /bin/bash ./wgd.sh install
-  
+
   echo "Looks like the installation succeeded. Moving on."
-  
+
   # Setup WireGuard if needed
-  if [ ! -f "/etc/wireguard/wg0.conf" ]; then
+  if [ -z "$(ls -A /etc/wireguard)" ]; then
     cp -a "/configs/wg0.conf.template" "/etc/wireguard/wg0.conf"
-    
+
     echo "Setting a secure private key."
     local privateKey
     privateKey=$(wg genkey)
     sed -i "s|^PrivateKey *=.*$|PrivateKey = ${privateKey}|g" /etc/wireguard/wg0.conf
-    
+
     echo "Done setting template."
   else
     echo "Existing wg0 configuration file found, using that."
@@ -121,51 +121,51 @@ ensure_installation() {
 
 set_envvars() {
   printf "\n------------- SETTING ENVIRONMENT VARIABLES ----------------\n"
-  
+
   # Check if config file is empty
   if [ ! -s "${config_file}" ]; then
     echo "Config file is empty. Creating initial structure."
   fi
-  
+
   echo "Checking basic configuration:"
   set_ini Peers peer_global_dns "${global_dns}"
-  
+
   if [ -z "${public_ip}" ]; then
     public_ip=$(curl -s ifconfig.me)
     echo "Automatically detected public IP: ${public_ip}" 
   fi
-  
+
   set_ini Peers remote_endpoint "${public_ip}"
   set_ini Server app_port "${wgd_port}"
-  
+
   # Account settings - process all parameters
   [[ -n "$username" ]] && echo "Configuring user account:"
   # Basic account variables
   [[ -n "$username" ]] && set_ini Account username "${username}"
-  
+
   if [[ -n "$password" ]]; then
     echo "- Setting password"
     set_ini Account password "$(hash_password "${password}")"
   fi
-  
+
   # Additional account variables
   [[ -n "$enable_totp" ]] && set_ini Account enable_totp "${enable_totp}"
   [[ -n "$totp_verified" ]] && set_ini Account totp_verified "${totp_verified}"
   [[ -n "$totp_key" ]] && set_ini Account totp_key "${totp_key}"
-  
+
   # Welcome session
   [[ -n "$welcome_session" ]] && set_ini Other welcome_session "${welcome_session}"
   # If username and password are set but welcome_session isn't, disable it
   if [[ -n "$username" && -n "$password" && -z "$welcome_session" ]]; then
     set_ini Other welcome_session "false"
   fi
-  
+
   # Autostart WireGuard
   if [[ -n "$wg_autostart" ]]; then
     echo "Configuring WireGuard autostart:"
     set_ini WireGuardConfiguration autostart "${wg_autostart}"
   fi
-  
+
   # Email (check if any settings need to be configured)
   email_vars=("email_server" "email_port" "email_encryption" "email_username" "email_password" "email_from" "email_template")
   for var in "${email_vars[@]}"; do
@@ -174,12 +174,12 @@ set_envvars() {
       break
     fi
   done
-  
+
   # Email (iterate through all possible fields)
   email_fields=("server:email_server" "port:email_port" "encryption:email_encryption" 
                 "username:email_username" "email_password:email_password" 
                 "send_from:email_from" "email_template:email_template")
-  
+
   for field_pair in "${email_fields[@]}"; do
     IFS=: read -r field var <<< "$field_pair"
     [[ -n "${!var}" ]] && set_ini Email "$field" "${!var}"
@@ -189,7 +189,7 @@ set_envvars() {
 # Start service and monitor logs
 start_and_monitor() {
   printf "\n---------------------- STARTING CORE -----------------------\n"
-  
+
   # Due to some instances complaining about this, making sure its there every time.
   mkdir -p /dev/net
   mknod /dev/net/tun c 10 200
@@ -198,15 +198,15 @@ start_and_monitor() {
   # Actually starting WGDashboard
   echo "Activating Python venv and executing the WireGuard Dashboard service."
   bash ./wgd.sh start
-  
+
   # Wait a second before continuing, to give the python program some time to get ready.
   sleep 1
   echo -e "\nEnsuring container continuation."
-  
+
   # Find and monitor log file
   local logdir="${WGDASH}/src/log"
   latestErrLog=$(find "$logdir" -name "error_*.log" -type f -print | sort -r | head -n 1)
-  
+
   # Only tail the logs if they are found
   if [ -n "$latestErrLog" ]; then
     tail -f "$latestErrLog" &
@@ -221,4 +221,4 @@ start_and_monitor() {
 # Main execution flow
 ensure_installation
 set_envvars
-start_and_monitor
+start_and_monitor