cschantz
5e517b9858
- Added per-user analysis (select cPanel user from list) - Added per-domain analysis (enter specific domain) - ModSecurity audit log integration - Detects SQL injection, XSS, command injection blocks by ModSec - Filters logs by user or domain when specified - Shows ModSecurity blocks in error report - Provides specific recommendations for ModSec false positives - Matches bot analyzer's filtering capabilities
568 lines
21 KiB
Bash
Executable File
568 lines
21 KiB
Bash
Executable File
#!/bin/bash
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################################################################################
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# Intelligent Website Error Analyzer
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################################################################################
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# Purpose: Find REAL website issues affecting REAL users
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# Filters out: Bots, plugin warnings, deprecation notices, minor issues
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# Focuses on: Critical errors that break sites for actual visitors
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################################################################################
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
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source "$SCRIPT_DIR/lib/common-functions.sh"
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source "$SCRIPT_DIR/lib/system-detect.sh"
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source "$SCRIPT_DIR/lib/user-manager.sh"
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# Configuration
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APACHE_ERROR_LOG="/var/log/apache2/error_log"
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DOMLOGS_DIR="/var/log/apache2/domlogs"
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MODSEC_AUDIT_LOG="/usr/local/apache/logs/modsec_audit.log"
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HOURS_TO_ANALYZE=24
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FILTER_USER=""
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FILTER_DOMAIN=""
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print_banner "Intelligent Website Error Analyzer"
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echo ""
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echo "Finding REAL issues affecting REAL users..."
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echo ""
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echo "What we filter out:"
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echo " ✗ Bot/scanner activity"
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echo " ✗ Plugin deprecation warnings"
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echo " ✗ PHP notices (non-critical)"
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echo " ✗ Random 404s for missing favicons/assets"
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echo " ✗ Security probe attempts"
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echo ""
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echo "What we focus on:"
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echo " ✓ 500 errors users actually see"
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echo " ✓ Fatal PHP errors breaking functionality"
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echo " ✓ Database connection failures"
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echo " ✓ Permission issues blocking access"
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echo " ✓ Memory exhaustion affecting performance"
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echo ""
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# Ask for filtering scope
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echo -e "${CYAN}Analysis Scope:${NC}"
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echo " 1) All users/domains (default)"
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echo " 2) Specific cPanel user"
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echo " 3) Specific domain"
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echo ""
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read -p "Select option [1]: " scope_choice
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scope_choice=${scope_choice:-1}
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case $scope_choice in
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2)
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# Select specific user
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select_user_interactive "Select cPanel user to analyze"
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if [ -n "$SELECTED_USER" ]; then
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FILTER_USER="$SELECTED_USER"
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echo "→ Filtering for user: $FILTER_USER"
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fi
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;;
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3)
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# Enter specific domain
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echo ""
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read -p "Enter domain name (e.g., example.com): " FILTER_DOMAIN
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if [ -n "$FILTER_DOMAIN" ]; then
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echo "→ Filtering for domain: $FILTER_DOMAIN"
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fi
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;;
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*)
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echo "→ Analyzing all users/domains"
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;;
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esac
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echo ""
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# Ask for time range
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echo -e "${CYAN}How far back should we analyze?${NC}"
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echo " 1) Last 1 hour"
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echo " 2) Last 6 hours"
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echo " 3) Last 24 hours (default)"
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echo " 4) Last 7 days"
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echo " 5) Last 30 days"
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echo ""
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read -p "Select option [3]: " time_choice
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time_choice=${time_choice:-3}
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case $time_choice in
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1) HOURS_TO_ANALYZE=1 ;;
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2) HOURS_TO_ANALYZE=6 ;;
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3) HOURS_TO_ANALYZE=24 ;;
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4) HOURS_TO_ANALYZE=168 ;;
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5) HOURS_TO_ANALYZE=720 ;;
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*) HOURS_TO_ANALYZE=24 ;;
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esac
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echo ""
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echo "→ Analyzing last $HOURS_TO_ANALYZE hours..."
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echo ""
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# Temporary files
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TEMP_DIR="/tmp/website-error-analysis-$$"
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mkdir -p "$TEMP_DIR"
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trap "rm -rf $TEMP_DIR" EXIT
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CRITICAL_ERRORS="$TEMP_DIR/critical.txt"
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USER_IMPACT_ERRORS="$TEMP_DIR/user_impact.txt"
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LOG_FILES_LIST="$TEMP_DIR/log_files.txt"
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# Discover all log file locations
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echo "→ Discovering log file locations..."
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> "$LOG_FILES_LIST"
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# Apache main error log (only if not filtering by user)
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if [ -z "$FILTER_USER" ] && [ -z "$FILTER_DOMAIN" ]; then
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for log in /var/log/apache2/error_log /usr/local/apache/logs/error_log /var/log/httpd/error_log; do
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[ -f "$log" ] && echo "$log|apache_main" >> "$LOG_FILES_LIST"
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done
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fi
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# Per-domain PHP error logs in public_html
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if [ -n "$FILTER_USER" ]; then
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# Specific user
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find "/home/$FILTER_USER" -name "error_log" -type f 2>/dev/null | while read -r log; do
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echo "$log|php_$FILTER_USER" >> "$LOG_FILES_LIST"
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done
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elif [ -n "$FILTER_DOMAIN" ]; then
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# Try to find domain's user and error logs
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user=$(grep -l "DNS.*$FILTER_DOMAIN" /var/cpanel/users/* 2>/dev/null | head -1 | xargs basename 2>/dev/null)
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if [ -n "$user" ]; then
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find "/home/$user" -name "error_log" -type f 2>/dev/null | while read -r log; do
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echo "$log|php_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
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done
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fi
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else
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# All users
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find /home/*/public_html -name "error_log" -type f 2>/dev/null | while read -r log; do
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username=$(echo "$log" | grep -oE '/home/[^/]+' | sed 's|/home/||')
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echo "$log|php_$username" >> "$LOG_FILES_LIST"
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done
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fi
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# Per-domain Apache logs in domlogs
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if [ -d "$DOMLOGS_DIR" ]; then
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if [ -n "$FILTER_DOMAIN" ]; then
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# Specific domain
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for log in "$DOMLOGS_DIR/$FILTER_DOMAIN" "$DOMLOGS_DIR/$FILTER_DOMAIN-"*; do
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[ -f "$log" ] && echo "$log|domlog_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
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done
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elif [ -n "$FILTER_USER" ]; then
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# Specific user - find their domains
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if [ -f "/var/cpanel/users/$FILTER_USER" ]; then
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grep "^DNS" "/var/cpanel/users/$FILTER_USER" | awk '{print $2}' | while read -r domain; do
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for log in "$DOMLOGS_DIR/$domain" "$DOMLOGS_DIR/$domain-"*; do
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[ -f "$log" ] && echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
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done
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done
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fi
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else
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# All domains
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for log in "$DOMLOGS_DIR"/*; do
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[ -f "$log" ] && ! [[ "$log" =~ (bytes_log|offset|error_log)$ ]] && \
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echo "$log|domlog_$(basename "$log")" >> "$LOG_FILES_LIST"
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done
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fi
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fi
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# ModSecurity audit log (only if not filtering or matches filter)
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if [ -f "$MODSEC_AUDIT_LOG" ]; then
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if [ -z "$FILTER_USER" ] && [ -z "$FILTER_DOMAIN" ]; then
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echo "$MODSEC_AUDIT_LOG|modsec_audit" >> "$LOG_FILES_LIST"
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elif [ -n "$FILTER_DOMAIN" ]; then
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# Will filter ModSec entries during processing
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echo "$MODSEC_AUDIT_LOG|modsec_audit" >> "$LOG_FILES_LIST"
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fi
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fi
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log_count=$(wc -l < "$LOG_FILES_LIST" 2>/dev/null || echo "0")
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echo " Found $log_count log files to analyze"
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if [ -n "$FILTER_USER" ]; then
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echo " Scope: User '$FILTER_USER'"
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elif [ -n "$FILTER_DOMAIN" ]; then
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echo " Scope: Domain '$FILTER_DOMAIN'"
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fi
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echo ""
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################################################################################
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# Intelligent Filtering
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################################################################################
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is_noise() {
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local line="$1"
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# Bot/Scanner patterns
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if echo "$line" | grep -qiE "bot|crawler|spider|scanner|nikto|nmap|masscan|sqlmap|nessus|acunetix|burp|shodan|censys|zgrab|nuclei|semrush|ahrefs|mj12"; then
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return 0
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fi
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# Known scanner IPs
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if echo "$line" | grep -qE "45\.148\.|185\.220\.|89\.248\.165\."; then
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return 0
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fi
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# WordPress plugin deprecation warnings (not user-facing)
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if echo "$line" | grep -qiE "PHP Deprecated|Deprecated.*plugin|call_user_func_array.*deprecated"; then
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return 0
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fi
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# Non-critical PHP notices
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if echo "$line" | grep -qiE "PHP Notice.*Undefined (variable|index|offset)" && \
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! echo "$line" | grep -qiE "fatal|error 500|white screen"; then
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return 0
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fi
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# Missing favicon/common assets (not real errors)
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if echo "$line" | grep -qiE "favicon\.ico|apple-touch-icon|robots\.txt|sitemap\.xml.*404"; then
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return 0
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fi
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# Security probes
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if echo "$line" | grep -qiE "wp-admin|wp-login|phpMyAdmin|phpmyadmin|\.env|\.git|config\.php|xmlrpc|eval-stdin|shell\.php|c99\.php|r57\.php|adminer\.php" && \
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echo "$line" | grep -qiE "404|403|not found"; then
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return 0
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fi
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# WordPress auto-updates and cron (normal operations)
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if echo "$line" | grep -qiE "wp-cron\.php|doing_cron|auto.*update"; then
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return 0
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fi
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# Common plugin update checks (not errors)
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if echo "$line" | grep -qiE "update-check|version-check|api\.wordpress\.org"; then
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return 0
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fi
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return 1
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}
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is_critical_user_facing() {
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local line="$1"
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# 500 Internal Server Error (users see white page)
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if echo "$line" | grep -qiE " 500 |Internal Server Error"; then
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return 0
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fi
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# PHP Fatal Errors (breaks functionality)
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if echo "$line" | grep -qiE "PHP Fatal error|Fatal error:.*in /"; then
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return 0
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fi
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# PHP Parse Errors (site completely broken)
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if echo "$line" | grep -qiE "PHP Parse error|syntax error"; then
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return 0
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fi
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# Database connection failures (site down)
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if echo "$line" | grep -qiE "Error establishing.*database|Can't connect.*MySQL|Access denied for user.*database|Too many connections|MySQL server has gone away"; then
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return 0
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fi
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# Memory exhaustion (white screen/incomplete pages)
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if echo "$line" | grep -qiE "Allowed memory size.*exhausted|Out of memory|Fatal.*memory"; then
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return 0
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fi
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# Segmentation fault (complete crash)
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if echo "$line" | grep -qiE "Segmentation fault|signal 11"; then
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return 0
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fi
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# Permission denied on critical files
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if echo "$line" | grep -qiE "Permission denied" && \
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echo "$line" | grep -qE "index\.php|wp-config\.php|\.htaccess|config\.php"; then
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return 0
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fi
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# File not found for MAIN page (404 on homepage/index)
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if echo "$line" | grep -qiE "File does not exist.*index\.(php|html)" || \
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echo "$line" | grep -qE " 404 .*\" \"GET / "; then
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return 0
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fi
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return 1
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}
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extract_useful_info() {
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local line="$1"
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# Extract domain
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domain=$(echo "$line" | grep -oE '\[vhost [^:]+' | sed 's/\[vhost //' || \
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echo "$line" | grep -oE '[a-zA-Z0-9.-]+\.(com|net|org|io|co|uk|us|dev)' | head -1 || \
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echo "$line" | grep -oE '/home/[^/]+' | sed 's|/home/||' || echo "unknown")
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# Extract file path if PHP error
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file_path=$(echo "$line" | grep -oE "in /[^ ]+\.php" | sed 's/in //' || echo "")
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# Extract error message (simplified)
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error_msg=$(echo "$line" | sed 's/^\[.*\] //' | sed 's/\[client [^]]*\] //' | cut -c1-100)
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echo "$domain|$file_path|$error_msg"
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}
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################################################################################
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# Main Analysis
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################################################################################
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo " SCANNING FOR USER-IMPACTING ERRORS"
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo ""
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total_lines=0
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filtered_out=0
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critical_found=0
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# Analyze all discovered log files
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while IFS='|' read -r log_path log_type; do
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echo " Analyzing: $(basename "$log_path")..."
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# Determine log type
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is_access_log=false
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is_modsec_log=false
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[[ "$log_type" == domlog_* ]] && ! [[ "$log_path" =~ error ]] && is_access_log=true
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[[ "$log_type" == modsec_* ]] && is_modsec_log=true
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if $is_modsec_log; then
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# ModSecurity audit log - parse for blocks/denials
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while IFS= read -r line; do
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((total_lines++))
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# Skip if not a security event
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echo "$line" | grep -qiE "ModSecurity.*Action.*Intercepted|status: (403|406|500)" || continue
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# Extract domain/host if filtering
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if [ -n "$FILTER_DOMAIN" ]; then
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echo "$line" | grep -q "$FILTER_DOMAIN" || continue
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fi
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# Extract useful info
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if echo "$line" | grep -qiE "SQL Injection|XSS|Command Injection|Path Traversal"; then
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((critical_found++))
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attack_type=$(echo "$line" | grep -oiE "SQL Injection|XSS|Command Injection|Path Traversal" | head -1)
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uri=$(echo "$line" | grep -oE "uri: [^ ]+" | sed 's/uri: //' || echo "")
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domain=$(echo "$line" | grep -oE "hostname: [^ ]+" | sed 's/hostname: //' || echo "unknown")
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echo "$domain||ModSecurity blocked: $attack_type $uri" >> "$CRITICAL_ERRORS"
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fi
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done < <(tail -n 5000 "$log_path" 2>/dev/null)
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elif $is_access_log; then
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# Access log - look for 5xx status codes
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while IFS= read -r line; do
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((total_lines++))
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# Skip if bot/scanner
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if is_noise "$line"; then
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((filtered_out++))
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continue
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fi
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# Extract status code and URL
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if echo "$line" | grep -qE '" 5[0-9]{2} '; then
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status=$(echo "$line" | grep -oE '" 5[0-9]{2} ' | tr -d '" ')
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url=$(echo "$line" | awk '{print $7}' | cut -c1-80)
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ip=$(echo "$line" | awk '{print $1}')
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domain=$(basename "$log_path" | sed 's/-.*//')
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# Apply domain filter if set
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if [ -n "$FILTER_DOMAIN" ] && [ "$domain" != "$FILTER_DOMAIN" ]; then
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continue
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fi
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((critical_found++))
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echo "$domain||HTTP $status - $url (from $ip)" >> "$CRITICAL_ERRORS"
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fi
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done < <(tail -n 5000 "$log_path" 2>/dev/null)
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else
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# Error log - look for critical errors
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while IFS= read -r line; do
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((total_lines++))
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# Skip noise
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if is_noise "$line"; then
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((filtered_out++))
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continue
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fi
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# Apply user/domain filter if set
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if [ -n "$FILTER_USER" ]; then
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echo "$line" | grep -q "/home/$FILTER_USER" || continue
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fi
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if [ -n "$FILTER_DOMAIN" ]; then
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echo "$line" | grep -q "$FILTER_DOMAIN" || continue
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fi
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# Check if it's critical and user-facing
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if is_critical_user_facing "$line"; then
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((critical_found++))
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extract_useful_info "$line" >> "$CRITICAL_ERRORS"
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fi
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done < <(tail -n 10000 "$log_path" 2>/dev/null)
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fi
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done < "$LOG_FILES_LIST"
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echo ""
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echo "Scanned: $total_lines log entries"
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echo "Filtered: $filtered_out noise entries (bots, warnings, etc.)"
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echo "Found: $critical_found critical user-facing errors"
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echo ""
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################################################################################
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# Generate Report
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################################################################################
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if [ ! -f "$CRITICAL_ERRORS" ] || [ ! -s "$CRITICAL_ERRORS" ]; then
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echo ""
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echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "${GREEN} ✓ NO CRITICAL USER-FACING ERRORS FOUND!${NC}"
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echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo ""
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echo "Your websites appear to be functioning normally for real users."
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echo "All errors found were from bots, scanners, or non-critical warnings."
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echo ""
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exit 0
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fi
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo " ⚠️ CRITICAL ERRORS AFFECTING REAL USERS"
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo ""
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# Group by domain and count
|
|
echo -e "${RED}${BOLD}AFFECTED WEBSITES:${NC}"
|
|
echo ""
|
|
|
|
cat "$CRITICAL_ERRORS" | cut -d'|' -f1 | sort | uniq -c | sort -rn | head -10 | while read -r count domain; do
|
|
printf " ${RED}●${NC} %-40s ${BOLD}%4d errors${NC}\n" "$domain" "$count"
|
|
done
|
|
|
|
echo ""
|
|
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
|
|
echo " ERROR DETAILS"
|
|
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
|
|
echo ""
|
|
|
|
# Show errors grouped by domain
|
|
current_domain=""
|
|
domain_count=0
|
|
|
|
sort "$CRITICAL_ERRORS" | while IFS='|' read -r domain file_path error_msg; do
|
|
if [ "$domain" != "$current_domain" ]; then
|
|
if [ -n "$current_domain" ]; then
|
|
echo ""
|
|
fi
|
|
|
|
((domain_count++))
|
|
[ $domain_count -gt 5 ] && break
|
|
|
|
echo -e "${YELLOW}▼ $domain${NC}"
|
|
current_domain="$domain"
|
|
fi
|
|
|
|
if [ -n "$file_path" ]; then
|
|
echo " File: $file_path"
|
|
fi
|
|
|
|
echo " Error: $error_msg"
|
|
echo ""
|
|
done
|
|
|
|
################################################################################
|
|
# Intelligent Recommendations
|
|
################################################################################
|
|
|
|
echo ""
|
|
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
|
|
echo " 🔧 RECOMMENDED ACTIONS"
|
|
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
|
|
echo ""
|
|
|
|
# Detect issue types and provide specific recommendations
|
|
if grep -qiE "500|Internal Server" "$CRITICAL_ERRORS"; then
|
|
echo -e "${RED}● 500 Internal Server Errors detected${NC}"
|
|
echo " Priority: URGENT - Users see broken pages"
|
|
echo ""
|
|
echo " Actions:"
|
|
echo " 1. Check PHP error logs for affected domains:"
|
|
for domain in $(grep -iE "500|Internal Server" "$CRITICAL_ERRORS" | cut -d'|' -f1 | sort -u | head -3); do
|
|
echo " tail -100 /home/$domain/public_html/error_log"
|
|
done
|
|
echo ""
|
|
echo " 2. Common causes:"
|
|
echo " - PHP syntax errors (check recent file changes)"
|
|
echo " - .htaccess syntax errors"
|
|
echo " - Incorrect file permissions"
|
|
echo " - Missing PHP modules"
|
|
echo ""
|
|
fi
|
|
|
|
if grep -qiE "Fatal error|Parse error" "$CRITICAL_ERRORS"; then
|
|
echo -e "${RED}● PHP Fatal/Parse Errors detected${NC}"
|
|
echo " Priority: URGENT - Site functionality broken"
|
|
echo ""
|
|
echo " Actions:"
|
|
echo " 1. Review recent plugin/theme updates"
|
|
echo " 2. Check PHP version compatibility"
|
|
echo " 3. Look for syntax errors in custom code"
|
|
echo " 4. Temporarily disable recently added plugins"
|
|
echo ""
|
|
fi
|
|
|
|
if grep -qiE "database|MySQL|Connection" "$CRITICAL_ERRORS"; then
|
|
echo -e "${RED}● Database Connection Errors detected${NC}"
|
|
echo " Priority: CRITICAL - Site may be completely down"
|
|
echo ""
|
|
echo " Actions:"
|
|
echo " 1. Check MySQL service: systemctl status mysql"
|
|
echo " 2. Verify database credentials in config files"
|
|
echo " 3. Check max_connections: mysql -e 'SHOW VARIABLES LIKE \"max_connections\"'"
|
|
echo " 4. Review current connections: mysql -e 'SHOW PROCESSLIST'"
|
|
echo ""
|
|
fi
|
|
|
|
if grep -qiE "memory.*exhausted|Out of memory" "$CRITICAL_ERRORS"; then
|
|
echo -e "${RED}● Memory Exhaustion detected${NC}"
|
|
echo " Priority: HIGH - Pages loading slowly or incompletely"
|
|
echo ""
|
|
echo " Current PHP memory limit: $(php -r 'echo ini_get("memory_limit");' 2>/dev/null)"
|
|
echo ""
|
|
echo " Actions:"
|
|
echo " 1. Increase memory_limit in php.ini or .user.ini"
|
|
echo " 2. Recommended: 256M minimum, 512M for WooCommerce"
|
|
echo " 3. Check for memory leaks in plugins"
|
|
echo " 4. Optimize database queries"
|
|
echo ""
|
|
fi
|
|
|
|
if grep -qiE "ModSecurity" "$CRITICAL_ERRORS"; then
|
|
echo -e "${YELLOW}● ModSecurity Blocks detected${NC}"
|
|
echo " Priority: MEDIUM - Security rules blocking requests"
|
|
echo ""
|
|
echo " Actions:"
|
|
echo " 1. Review ModSecurity audit log for false positives"
|
|
echo " 2. Check if legitimate functionality is being blocked"
|
|
echo " 3. Consider whitelisting specific rules if needed"
|
|
echo " 4. Review blocked attack types to understand threats"
|
|
echo " 5. ModSecurity log: $MODSEC_AUDIT_LOG"
|
|
echo ""
|
|
fi
|
|
|
|
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
|
|
echo ""
|
|
echo "Full analysis saved to: $CRITICAL_ERRORS"
|
|
echo ""
|
|
echo "Next steps:"
|
|
echo " 1. Address critical errors first (500s, database, fatal errors)"
|
|
echo " 2. Check error_log files for affected domains"
|
|
echo " 3. Test affected pages after fixes"
|
|
echo " 4. Re-run this tool to verify issues are resolved"
|
|
echo ""
|
|
|
|
press_enter
|