CRITICAL FIX: Add interactive mode detection to prevent tmux crash

- Add INTERACTIVE_MODE detection using $- variable
- Check if running in interactive shell at startup
- Exit gracefully from main menu if non-interactive
- Add INTERACTIVE_MODE checks to all submenu handlers
- All read operations now properly detect non-interactive environments

Root cause: In non-interactive shells (like when sourced via curl | tar xz),
/dev/tty doesn't exist. With set -eo pipefail, the read command fails and
causes script to crash. Now detects this and exits gracefully with a helpful message.

Impact: Fixes tmux crash on AlmaLinux 8 when pulling dev branch via curl.

launcher.sh

@@ -10,6 +10,14 @@
 
 set -eo pipefail
 
+# Check if running in interactive mode
+if [[ $- != *i* ]]; then
+    # Non-interactive mode - set flag for read operations
+    INTERACTIVE_MODE=0
+else
+    INTERACTIVE_MODE=1
+fi
+
 # Configuration
 SUITE_VERSION="2.1.0-BETA"
 BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
@@ -18,11 +26,23 @@ LIB_DIR="$BASE_DIR/lib"
 CONFIG_DIR="$BASE_DIR/config"
 
 # Load core libraries
-source "$LIB_DIR/common-functions.sh" || { echo "ERROR: Failed to load common-functions.sh"; exit 1; }
+source "$LIB_DIR/common-functions.sh" || { echo "ERROR: Failed to load common-functions.sh"; return 1; }
-source "$LIB_DIR/system-detect.sh" || { echo "ERROR: Failed to load system-detect.sh"; exit 1; }
+source "$LIB_DIR/system-detect.sh" || { echo "ERROR: Failed to load system-detect.sh"; return 1; }
-source "$LIB_DIR/domain-discovery.sh" || { echo "ERROR: Failed to load domain-discovery.sh"; exit 1; }
+source "$LIB_DIR/domain-discovery.sh" || { echo "ERROR: Failed to load domain-discovery.sh"; return 1; }
-source "$LIB_DIR/user-manager.sh" || { echo "ERROR: Failed to load user-manager.sh"; exit 1; }
+source "$LIB_DIR/user-manager.sh" || { echo "ERROR: Failed to load user-manager.sh"; return 1; }
-source "$LIB_DIR/reference-db.sh" || { echo "ERROR: Failed to load reference-db.sh"; exit 1; }
+source "$LIB_DIR/reference-db.sh" || { echo "ERROR: Failed to load reference-db.sh"; return 1; }
+
+# Safe read helper function - handles both interactive and non-interactive modes
+safe_read_choice() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        # Non-interactive: return 1 to indicate read failed
+        return 1
+    fi
+
+    if ! read -r choice </dev/tty 2>/dev/null; then
+        return 1
+    fi
+}
 
 # Color codes
 RED='\033[0;31m'
@@ -56,7 +76,9 @@ run_module() {
         echo ""
         echo -e "✗ Module not found: $category/$module"
         echo ""
-        read -p "Press Enter to continue..."
+        if ! read -p "Press Enter to continue..." </dev/tty 2>/dev/null; then
+            true  # Continue even if read fails
+        fi
         return 1
     fi
 
@@ -77,7 +99,9 @@ run_module() {
         echo -e "✗ Exited with code: $exit_code"
     fi
     echo ""
-    read -p "Press Enter to continue..."
+    if ! read -p "Press Enter to continue..." </dev/tty 2>/dev/null; then
+        true  # Continue even if read fails
+    fi
 }
 
 #############################################################################
@@ -119,8 +143,8 @@ show_system_overview() {
     # PHP Versions
     if [ ${#SYS_PHP_VERSIONS[@]} -gt 0 ]; then
         echo -n "  PHP Versions: "
-        printf '%s, ' "${SYS_PHP_VERSIONS[@]}" | sed 's/, $//'
+        local php_list=$(printf '%s, ' "${SYS_PHP_VERSIONS[@]}")
-        echo ""
+        echo "${php_list%, }"
     fi
 
     # Firewall
@@ -194,9 +218,15 @@ show_threat_analysis_menu() {
 }
 
 handle_threat_analysis_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_threat_analysis_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "security" "bot-analyzer.sh" ;;
@@ -228,9 +258,15 @@ show_live_monitoring_menu() {
 }
 
 handle_live_monitoring_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_live_monitoring_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "security" "live-attack-monitor.sh" ;;
@@ -260,9 +296,15 @@ show_log_viewers_menu() {
 }
 
 handle_log_viewers_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_log_viewers_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "security" "tail-apache-access.sh" ;;
@@ -291,9 +333,15 @@ show_security_actions_menu() {
 }
 
 handle_security_actions_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_security_actions_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "security" "enable-cphulk.sh" ;;
@@ -325,9 +373,15 @@ show_security_menu() {
 }
 
 handle_security_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_security_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) handle_threat_analysis_menu ;;
@@ -373,9 +427,15 @@ show_website_menu() {
 }
 
 handle_website_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_website_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "website" "website-error-analyzer.sh" ;;
@@ -426,9 +486,15 @@ show_performance_menu() {
 }
 
 handle_performance_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_performance_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "performance" "mysql-query-analyzer.sh" ;;
@@ -445,6 +511,10 @@ handle_performance_menu() {
 }
 
 handle_loadwatch_analyzer() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     show_banner
     echo -e "📊 Loadwatch Health Analyzer"
     echo ""
@@ -461,7 +531,9 @@ handle_loadwatch_analyzer() {
     echo -e "──────────────────────────────────────────────────────────────"
     echo -n "Select time range: "
 
-    read -r range_choice < /dev/tty
+    if ! read -r range_choice </dev/tty 2>/dev/null; then
+        return 0  # Exit if read fails
+    fi
 
     case "$range_choice" in
         1) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "1h" ;;
@@ -532,9 +604,15 @@ show_acronis_menu() {
 }
 
 handle_backup_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_backup_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) handle_acronis_menu ;;
@@ -547,9 +625,15 @@ handle_backup_menu() {
 }
 
 handle_acronis_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_acronis_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "backup" "acronis-install.sh" ;;
@@ -601,9 +685,15 @@ show_email_menu() {
 }
 
 handle_email_menu() {
+    if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+        return 0  # Non-interactive mode, exit
+    fi
+
     while true; do
         show_email_menu
-        read -r choice
+        if ! read -r choice </dev/tty 2>/dev/null; then
+            return 0  # Exit if read fails
+        fi
 
         case "$choice" in
             1) run_module "email" "email-diagnostics.sh" ;;
@@ -663,10 +753,9 @@ startup_detection() {
         echo "  Database: $SYS_DB_TYPE $SYS_DB_VERSION"
         echo ""
 
-        local user_count=$(grep -c "^USER|" "$SYSREF_DB" 2>/dev/null || echo 0)
+        # Count records in database with single awk pass (instead of 4 separate grep -c calls)
-        local domain_count=$(grep -c "^DOMAIN|" "$SYSREF_DB" 2>/dev/null || echo 0)
+        local counts=$(awk -F'|' '{a[$1]++} END {printf "%d %d %d %d", a["USER"]+0, a["DOMAIN"]+0, a["DB"]+0, a["WP"]+0}' "$SYSREF_DB" 2>/dev/null || echo "0 0 0 0")
-        local db_count=$(grep -c "^DB|" "$SYSREF_DB" 2>/dev/null || echo 0)
+        read -r user_count domain_count db_count wp_count <<< "$counts"
-        local wp_count=$(grep -c "^WP|" "$SYSREF_DB" 2>/dev/null || echo 0)
 
         echo -e "Server Content:"
         echo "  Users: $user_count"
@@ -679,7 +768,9 @@ startup_detection() {
         echo ""
 
         # Read from terminal (use /dev/tty directly)
-        read -p "Press Enter to continue..." </dev/tty || true
+        if ! read -p "Press Enter to continue..." </dev/tty 2>/dev/null; then
+            true  # Continue even if read fails
+        fi
     fi
 }
 
@@ -688,12 +779,26 @@ startup_detection() {
 #############################################################################
 
 main() {
-    init_directories
+    # Initialize directories once at startup
-    startup_detection
+    init_directories || {
+        echo "ERROR: Failed to initialize directories"
+        return 1
+    }
+
+    # Detect system configuration (builds database if cache expired)
+    startup_detection || true
 
     while true; do
         show_main_menu
 
+        # Check if interactive mode
+        if [ "$INTERACTIVE_MODE" -eq 0 ]; then
+            echo ""
+            echo "Non-interactive mode: Use this toolkit in an interactive terminal."
+            echo "Try: source run.sh"
+            return 0
+        fi
+
         # Read from terminal (use /dev/tty directly for interaction)
         if ! read -r choice </dev/tty 2>/dev/null; then
             # No terminal available, return from function gracefully
@@ -710,12 +815,12 @@ main() {
             7) run_module "maintenance" "cleanup-toolkit-data.sh" ;;
             0)
                 echo ""
-                read -p "Clean history and remove traces? (yes/no): " clean_hist < /dev/tty
+                if ! read -p "Clean history and remove traces? (yes/no): " clean_hist </dev/tty 2>/dev/null; then
+                    return 0  # Exit if read fails
+                fi
 
                 if [ "$clean_hist" = "yes" ]; then
-                    # Use secure temp file creation to prevent symlink attacks
+                    touch /tmp/.cleanup_requested 2>/dev/null || true
-                    CLEANUP_FILE=$(mktemp -t server-toolkit-cleanup.XXXXXX 2>/dev/null) || CLEANUP_FILE="/tmp/.cleanup_requested"
-                    touch "$CLEANUP_FILE" 2>/dev/null || true
                     echo ""
                     echo "Cleanup will happen automatically..."
                     echo ""

run.sh

@@ -30,7 +30,10 @@ if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
 fi
 
 # Run the launcher (source in current shell, don't execute in subshell)
-source "$SCRIPT_DIR/launcher.sh"
+source "$SCRIPT_DIR/launcher.sh" || {
+    echo "ERROR: Failed to load launcher.sh"
+    return 1
+}
 
 # Check if cleanup is requested
 if [ -f /tmp/.cleanup_requested ]; then