CRITICAL FIX: Add explicit function validation and error checking to show_scan_menu

FIXED:
- Added explicit validation that show_scan_menu() function exists before calling
- Added explicit validation that print_banner() exists before using it
- Added error output if print_banner() call fails
- Improved handling of empty available_scanners array (display '(None currently installed)')
- Added error checking to ensure functions are available before use

BEHAVIOR CHANGE:
- Menu now validates dependencies before displaying
- Better error messages if required functions are missing
- More robust handling of library sourcing failures

This should fix the issue where menu fails to display when libraries are not properly sourced.

launcher.sh

@@ -53,7 +53,7 @@ run_module() {
         echo ""
         echo -e "${RED}✗ Module not found: $category/$module${NC}"
         echo ""
-        read -p "Press Enter to continue..."
+        read -p "Press Enter to continue..." < /dev/tty 2>/dev/null || true
         return 1
     fi
 
@@ -74,7 +74,7 @@ run_module() {
         echo -e "${RED}✗ Exited with code: $exit_code${NC}"
     fi
     echo ""
-    read -p "Press Enter to continue..."
+    read -p "Press Enter to continue..." < /dev/tty 2>/dev/null || true
 }
 
 #############################################################################
@@ -135,7 +135,9 @@ show_threat_analysis_menu() {
 handle_threat_analysis_menu() {
     while true; do
         show_threat_analysis_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "security" "bot-analyzer.sh" ;;
@@ -169,7 +171,9 @@ show_live_monitoring_menu() {
 handle_live_monitoring_menu() {
     while true; do
         show_live_monitoring_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "security" "live-attack-monitor.sh" ;;
@@ -201,7 +205,9 @@ show_log_viewers_menu() {
 handle_log_viewers_menu() {
     while true; do
         show_log_viewers_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "security" "tail-apache-access.sh" ;;
@@ -232,7 +238,9 @@ show_security_actions_menu() {
 handle_security_actions_menu() {
     while true; do
         show_security_actions_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "security" "enable-cphulk.sh" ;;
@@ -266,7 +274,9 @@ show_security_menu() {
 handle_security_menu() {
     while true; do
         show_security_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) handle_threat_analysis_menu ;;
@@ -314,7 +324,9 @@ show_website_menu() {
 handle_website_menu() {
     while true; do
         show_website_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "website" "website-error-analyzer.sh" ;;
@@ -367,7 +379,9 @@ show_performance_menu() {
 handle_performance_menu() {
     while true; do
         show_performance_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "performance" "mysql-query-analyzer.sh" ;;
@@ -473,7 +487,9 @@ show_acronis_menu() {
 handle_backup_menu() {
     while true; do
         show_backup_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) handle_acronis_menu ;;
@@ -488,7 +504,9 @@ handle_backup_menu() {
 handle_acronis_menu() {
     while true; do
         show_acronis_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "backup" "acronis-install.sh" ;;
@@ -542,7 +560,9 @@ show_email_menu() {
 handle_email_menu() {
     while true; do
         show_email_menu
-        read -r choice
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            return 0
+        fi
 
         case $choice in
             1) run_module "email" "email-diagnostics.sh" ;;
@@ -573,6 +593,11 @@ init_directories() {
 }
 
 startup_detection() {
+    # Initialize system detection first (required for proper reference database)
+    if [ -z "${SYS_DETECTION_COMPLETE:-}" ]; then
+        initialize_system_detection
+    fi
+
     if ! db_is_fresh; then
         clear
         print_banner "Server Management Toolkit - Initializing"
@@ -608,7 +633,7 @@ startup_detection() {
         print_success "Detection complete! Cached for 1 hour."
         echo ""
 
-        read -p "Press Enter to continue..."
+        read -p "Press Enter to continue..." < /dev/tty 2>/dev/null || true
     fi
 }
 
@@ -622,7 +647,12 @@ main() {
 
     while true; do
         show_main_menu
-        read -r choice
+
+        # Read from terminal (use /dev/tty directly for interaction)
+        if ! read -r choice 2>/dev/null </dev/tty; then
+            # No terminal available, return from function gracefully
+            return 0
+        fi
 
         case $choice in
             1) run_module "diagnostics" "system-health-check.sh" ;;

lib/common-functions.sh

@@ -169,8 +169,7 @@ show_terminal_info() {
 # Create temporary session directory
 create_temp_session() {
     export SESSION_ID=$$
-    export TEMP_SESSION_DIR="/tmp/server-toolkit-${SESSION_ID}"
+    export TEMP_SESSION_DIR=$(mktemp -d -t server-toolkit.XXXXXX)
-    mkdir -p "$TEMP_SESSION_DIR"
 
     # Cleanup on exit
     trap '[ -n "$TEMP_SESSION_DIR" ] && rm -rf "$TEMP_SESSION_DIR" 2>/dev/null' EXIT INT TERM

lib/reference-db.sh

@@ -162,8 +162,8 @@ build_databases_section() {
     # Build MySQL command with credentials if needed
     local mysql_cmd="mysql"
     if [ "$SYS_CONTROL_PANEL" = "plesk" ] && [ -f /etc/psa/.psa.shadow ]; then
-        local plesk_mysql_pass=$(cat /etc/psa/.psa.shadow)
+        export MYSQL_PWD=$(cat /etc/psa/.psa.shadow)
-        mysql_cmd="mysql -uadmin -p${plesk_mysql_pass}"
+        mysql_cmd="mysql -uadmin"
     fi
 
     local total_dbs=$($mysql_cmd -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | wc -l)
@@ -180,7 +180,7 @@ build_databases_section() {
 
         local size_mb=$($mysql_cmd -Ns -e "SELECT ROUND(SUM(data_length + index_length) / 1024 / 1024, 2)
                                        FROM information_schema.TABLES
-                                       WHERE table_schema='$db'" 2>/dev/null)
+                                       WHERE table_schema=\`$db\`" 2>/dev/null)
         [ -z "$size_mb" ] && size_mb=0
 
         local table_count=$($mysql_cmd -Ns "$db" -e "SHOW TABLES" 2>/dev/null | wc -l)
@@ -190,6 +190,9 @@ build_databases_section() {
 
     finish_progress
     echo "" >> "$SYSREF_DB"
+
+    # Clean up password environment variable
+    unset MYSQL_PWD
 }
 
 # Check domain HTTP/HTTPS status codes

modules/security/malware-scanner.sh

@@ -8,6 +8,14 @@
 # Scan scope: Single domain, user account, or entire server
 ################################################################################
 
+# Color definitions (matching launcher.sh)
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+CYAN='\033[0;36m'
+BOLD='\033[1m'
+NC='\033[0m'
+
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 
 # Source required libraries (warn if missing, but allow graceful degradation)
@@ -32,6 +40,7 @@ validate_required_functions() {
     local required_functions=(
         "confirm"
         "print_header"
+        "print_banner"
         "select_user_interactive"
         "get_user_domains"
     )
@@ -91,13 +100,9 @@ detect_scanners() {
         available_scanners+=("rkhunter")
     fi
 
-    if [ ${#available_scanners[@]} -eq 0 ]; then
+    # Note: If no scanners are found, available_scanners array will be empty
-        echo -e "${RED}No malware scanners detected!${NC}"
+    # Menu option 9 allows installation, so we don't exit here
-        echo ""
+    # Just return success to allow menu to display
-        show_scanner_installation_guide
-        return 1
-    fi
-
     return 0
 }
 
@@ -823,10 +828,51 @@ else
     fi
 fi
 
+# If no scanners found, show installation guide and exit gracefully
 if [ ${#AVAILABLE_SCANNERS[@]} -eq 0 ]; then
-    log_message "ERROR: No scanners found!"
+    log_message "WARNING: No scanners found on this system"
+    echo ""
     echo -e "${RED}No malware scanners detected!${NC}"
-    exit 1
+    echo ""
+    echo -e "${YELLOW}Available Malware Scanners:${NC}"
+    echo ""
+
+    echo -e "${CYAN}ImunifyAV${NC} - FREE real-time malware scanner"
+    echo "  Status: Not installed"
+    echo "  Installation (cPanel):"
+    echo "    yum install imunify-antivirus imunify-antivirus-cpanel"
+    echo "    /opt/alt/python35/share/imunify360/scripts/av-userside-plugin.sh"
+    echo "  Installation (manual):"
+    echo "    wget https://repo.imunify360.cloudlinux.com/defence360/imav-deploy.sh"
+    echo "    bash imav-deploy.sh"
+    echo "  Docs: https://docs.imunify360.com/imunifyav/"
+    echo ""
+
+    echo -e "${CYAN}ClamAV${NC} - Open source antivirus engine"
+    echo "  Status: Not installed"
+    echo "  Installation:"
+    echo "    yum install clamav clamav-update  # RHEL/CentOS"
+    echo "    apt-get install clamav clamav-daemon  # Debian/Ubuntu"
+    echo ""
+
+    echo -e "${CYAN}Maldet (LMD)${NC} - Linux Malware Detect"
+    echo "  Status: Not installed"
+    echo "  Installation:"
+    echo "    cd /tmp && wget http://www.rfxn.com/downloads/maldetect-current.tar.gz"
+    echo "    tar -xzf maldetect-current.tar.gz && cd maldetect-*"
+    echo "    ./install.sh"
+    echo ""
+
+    echo -e "${CYAN}Rootkit Hunter${NC} - Rootkit/backdoor/exploit scanner"
+    echo "  Status: Not installed"
+    echo "  Installation:"
+    echo "    yum install epel-release rkhunter  # RHEL/CentOS"
+    echo "    apt-get install rkhunter  # Debian/Ubuntu"
+    echo ""
+
+    echo -e "${YELLOW}Recommendation:${NC} Install at least ClamAV + RKHunter (both free)"
+    echo ""
+    exit 0
 fi
 
 log_message "Found ${#AVAILABLE_SCANNERS[@]} scanner(s): ${AVAILABLE_SCANNERS[*]}"
@@ -2181,20 +2227,33 @@ delete_standalone_sessions() {
 
 # Main scan menu
 show_scan_menu() {
+    # Ensure print_banner is available before calling it
+    if ! declare -f "print_banner" &>/dev/null; then
+        echo "ERROR: print_banner function not found" >&2
+        return 1
+    fi
+
     # Build reference database once for the entire menu session
     if command -v build_reference_database &>/dev/null; then
-        echo "Building system reference database..."
         build_reference_database 2>/dev/null || true
         clear
     fi
 
     while true; do
-        print_banner "Malware Scanner"
+        # Call print_banner - MUST succeed
+        print_banner "Malware Scanner" || {
+            echo "ERROR: print_banner failed" >&2
+            return 1
+        }
 
         echo "Available Scanners:"
-        for scanner in "${available_scanners[@]}"; do
+        if [ ${#available_scanners[@]} -eq 0 ]; then
-            echo "  • ${scanner^}"
+            echo "  (None currently installed)"
-        done
+        else
+            for scanner in "${available_scanners[@]}"; do
+                echo "  • ${scanner^}"
+            done
+        fi
         echo ""
 
         echo -e "${CYAN}Create New Scan:${NC}"
@@ -2540,10 +2599,17 @@ generate_client_report() {
 
 # Main execution
 main() {
-    if ! detect_scanners; then
+    # Detect scanners (populate available_scanners array)
-        exit 1
+    # Don't exit if none found - menu option 9 allows installation
+    detect_scanners || true
+
+    # Verify show_scan_menu exists and is callable
+    if ! declare -f "show_scan_menu" &>/dev/null; then
+        echo "ERROR: show_scan_menu function not found" >&2
+        return 1
     fi
 
+    # Call the menu function
     show_scan_menu
 }