Files
Linux-Server-Management-Too…/modules/website/website-error-analyzer.sh
T
cschantz 941d624f7a Fix CRITICAL and HIGH priority QA issues
CRITICAL FIXES (7 → 0):
- Fixed 6 dangerous rm -rf commands with unvalidated variables
  - lib/common-functions.sh:176 - Added validation before rm
  - tools/erase-toolkit-traces.sh:167,184,194 - Added validations
  - modules/website/website-error-analyzer.sh:131 - Fixed trap
  - modules/website/500-error-tracker.sh:56 - Fixed trap
- Fixed eval command injection risk in malware-scanner.sh
  - Replaced eval with direct find command execution
  - Properly escaped parentheses for complex find patterns

HIGH FIXES (10 → 0):
- Fixed 70+ integer comparison issues across 10 files
  - Used ${var:-0} syntax to prevent "integer expression expected" errors
  - Applied to: lib/ip-reputation.sh, lib/user-manager.sh, launcher.sh,
    modules/security/bot-analyzer.sh, modules/security/live-attack-monitor.sh,
    modules/security/malware-scanner.sh, modules/security/optimize-ct-limit.sh,
    modules/performance/hardware-health-check.sh,
    modules/performance/mysql-query-analyzer.sh,
    modules/website/500-error-tracker.sh
- Added parameter validation to 10 functions in lib/mysql-analyzer.sh:
  - map_database_to_user_domain(), get_database_owner(), get_database_domain()
  - identify_plugin_from_table(), get_table_size(), get_database_tables()
  - analyze_table_structure(), extract_database_from_query()
  - capture_live_queries() (already had validation via file existence check)
  - parse_slow_query_log() (already had validation via file existence check)

PROGRESS: 106 issues → 100 issues (-6 issues fixed)
- CRITICAL: 7 → 0 (100% fixed)
- HIGH: 10 → 0 (100% fixed)
- MEDIUM: 63 (unchanged)
- LOW: 26 (unchanged)
2025-12-04 16:17:59 -05:00

1001 lines
40 KiB
Bash
Executable File

#!/bin/bash
################################################################################
# Intelligent Website Error Analyzer
################################################################################
# Purpose: Find REAL website issues affecting REAL users
# Filters out: Bots, plugin warnings, deprecation notices, minor issues
# Focuses on: Critical errors that break sites for actual visitors
################################################################################
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
source "$SCRIPT_DIR/lib/common-functions.sh"
source "$SCRIPT_DIR/lib/system-detect.sh"
source "$SCRIPT_DIR/lib/user-manager.sh"
source "$SCRIPT_DIR/lib/ip-reputation.sh"
# Configuration - Use system-detected paths
APACHE_ERROR_LOG="/var/log/apache2/error_log" # Will be auto-detected
DOMLOGS_DIR="${SYS_LOG_DIR}" # From system-detect.sh
MODSEC_AUDIT_LOG="/usr/local/apache/logs/modsec_audit.log" # Will be auto-detected
HOURS_TO_ANALYZE=24
FILTER_USER=""
FILTER_DOMAIN=""
# Multi-panel support
CONTROL_PANEL="${SYS_CONTROL_PANEL}"
print_banner "Intelligent Website Error Analyzer"
echo ""
echo "Finding REAL issues affecting REAL users..."
echo ""
echo "What we filter out:"
echo " ✗ Bot/scanner activity"
echo " ✗ Plugin deprecation warnings"
echo " ✗ PHP notices (non-critical)"
echo " ✗ Random 404s for missing favicons/assets"
echo " ✗ Security probe attempts"
echo ""
echo "What we focus on:"
echo " ✓ 500 errors users actually see"
echo " ✓ Fatal PHP errors breaking functionality"
echo " ✓ Database connection failures"
echo " ✓ Permission issues blocking access"
echo " ✓ Memory exhaustion affecting performance"
echo ""
# Ask for filtering scope
echo -e "${CYAN}Analysis Scope:${NC}"
echo " 1) All users/domains (default)"
echo " 2) Specific cPanel user"
echo " 3) Specific domain"
echo " 0) Cancel and return to menu"
echo ""
read -p "Select option [1]: " scope_choice
scope_choice=${scope_choice:-1}
case $scope_choice in
0)
echo ""
echo "Analysis cancelled."
echo ""
exit 0
;;
2)
# Select specific user
select_user_interactive "Select cPanel user to analyze"
if [ -n "$SELECTED_USER" ]; then
FILTER_USER="$SELECTED_USER"
echo "→ Filtering for user: $FILTER_USER"
else
echo ""
echo "No user selected. Analysis cancelled."
echo ""
exit 0
fi
;;
3)
# Enter specific domain
echo ""
read -p "Enter domain name (e.g., example.com) or 0 to cancel: " FILTER_DOMAIN
if [ "$FILTER_DOMAIN" = "0" ] || [ -z "$FILTER_DOMAIN" ]; then
echo ""
echo "Analysis cancelled."
echo ""
exit 0
fi
echo "→ Filtering for domain: $FILTER_DOMAIN"
;;
*)
echo "→ Analyzing all users/domains"
;;
esac
echo ""
# Ask for time range
echo -e "${CYAN}How far back should we analyze?${NC}"
echo " 1) Last 1 hour"
echo " 2) Last 6 hours"
echo " 3) Last 24 hours (default)"
echo " 4) Last 7 days"
echo " 5) Last 30 days"
echo " 0) Cancel and return to menu"
echo ""
read -p "Select option [3]: " time_choice
time_choice=${time_choice:-3}
case $time_choice in
0)
echo ""
echo "Analysis cancelled."
echo ""
exit 0
;;
1) HOURS_TO_ANALYZE=1 ;;
2) HOURS_TO_ANALYZE=6 ;;
3) HOURS_TO_ANALYZE=24 ;;
4) HOURS_TO_ANALYZE=168 ;;
5) HOURS_TO_ANALYZE=720 ;;
*) HOURS_TO_ANALYZE=24 ;;
esac
echo ""
echo "→ Analyzing last $HOURS_TO_ANALYZE hours..."
echo ""
# Temporary files
TEMP_DIR="/tmp/website-error-analysis-$$"
mkdir -p "$TEMP_DIR"
trap '[ -n "$TEMP_DIR" ] && rm -rf "$TEMP_DIR"' EXIT
CRITICAL_ERRORS="$TEMP_DIR/critical.txt"
USER_IMPACT_ERRORS="$TEMP_DIR/user_impact.txt"
LOG_FILES_LIST="$TEMP_DIR/log_files.txt"
# Discover all log file locations
echo "→ Discovering log file locations..."
> "$LOG_FILES_LIST"
# Apache main error log (only if not filtering by user)
if [ -z "$FILTER_USER" ] && [ -z "$FILTER_DOMAIN" ]; then
for log in /var/log/apache2/error_log /usr/local/apache/logs/error_log /var/log/httpd/error_log; do
[ -f "$log" ] && echo "$log|apache_main" >> "$LOG_FILES_LIST"
done
fi
# Per-domain PHP error logs - Multi-panel support
if [ -n "$FILTER_USER" ]; then
# Specific user
find "/home/$FILTER_USER" -name "error_log" -type f 2>/dev/null | while read -r log; do
echo "$log|php_$FILTER_USER" >> "$LOG_FILES_LIST"
done
elif [ -n "$FILTER_DOMAIN" ]; then
# Try to find domain's user using multi-panel method
user=""
case "$CONTROL_PANEL" in
cpanel)
user=$(grep "^${FILTER_DOMAIN}:" /etc/userdatadomains 2>/dev/null | cut -d: -f2 | awk -F'==' '{print $1}' | head -1)
;;
interworx)
user=$(grep -l "ServerName ${FILTER_DOMAIN}" /etc/httpd/conf.d/vhost_*.conf 2>/dev/null | head -1 | \
xargs grep "SuexecUserGroup" 2>/dev/null | awk '{print $2}')
;;
plesk)
# Plesk domain-to-user lookup would require DB query
user=$(plesk bin subscription --info "$FILTER_DOMAIN" 2>/dev/null | grep "Owner" | awk '{print $2}')
;;
esac
if [ -n "$user" ]; then
find "/home/$user" -name "error_log" -type f 2>/dev/null | while read -r log; do
echo "$log|php_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
done
fi
else
# All users - Search based on control panel structure
case "$CONTROL_PANEL" in
cpanel)
find /home/*/public_html -name "error_log" -type f 2>/dev/null | while read -r log; do
username=$(echo "$log" | grep -oE '/home/[^/]+' | sed 's|/home/||')
echo "$log|php_$username" >> "$LOG_FILES_LIST"
done
;;
interworx)
find /home/*/*/html -name "error_log" -type f 2>/dev/null | while read -r log; do
username=$(echo "$log" | grep -oE '/home/[^/]+' | sed 's|/home/||')
echo "$log|php_$username" >> "$LOG_FILES_LIST"
done
;;
plesk)
find /var/www/vhosts/*/httpdocs -name "error_log" -type f 2>/dev/null | while read -r log; do
domain=$(echo "$log" | grep -oE '/vhosts/[^/]+' | sed 's|/vhosts/||')
echo "$log|php_$domain" >> "$LOG_FILES_LIST"
done
;;
*)
# Standalone - try common locations
find /var/www/html -name "error_log" -type f 2>/dev/null | while read -r log; do
echo "$log|php_standalone" >> "$LOG_FILES_LIST"
done
;;
esac
fi
# Per-domain Apache logs - Multi-panel support
case "$CONTROL_PANEL" in
cpanel)
# cPanel: Centralized domlogs directory
if [ -d "$DOMLOGS_DIR" ]; then
if [ -n "$FILTER_DOMAIN" ]; then
# Specific domain
for log in "$DOMLOGS_DIR/$FILTER_DOMAIN" "$DOMLOGS_DIR/$FILTER_DOMAIN-"*; do
[ -f "$log" ] && echo "$log|domlog_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
done
elif [ -n "$FILTER_USER" ]; then
# Specific user - use get_user_domains from user-manager.sh
local user_domains=$(get_user_domains "$FILTER_USER" 2>/dev/null)
if [ -n "$user_domains" ]; then
while IFS= read -r domain; do
for log in "$DOMLOGS_DIR/$domain" "$DOMLOGS_DIR/$domain-"*; do
[ -f "$log" ] && echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
done
done <<< "$user_domains"
fi
else
# All domains
for log in "$DOMLOGS_DIR"/*; do
[ -f "$log" ] && ! [[ "$log" =~ (bytes_log|offset|error_log|ftpxferlog)$ ]] && \
echo "$log|domlog_$(basename "$log")" >> "$LOG_FILES_LIST"
done
fi
fi
;;
interworx)
# InterWorx: Per-domain logs in user home directories
if [ -n "$FILTER_DOMAIN" ]; then
# Specific domain - find its user
local user=$(grep -l "ServerName ${FILTER_DOMAIN}" /etc/httpd/conf.d/vhost_*.conf 2>/dev/null | head -1 | \
xargs grep "SuexecUserGroup" 2>/dev/null | awk '{print $2}')
if [ -n "$user" ]; then
local log="/home/${user}/var/${FILTER_DOMAIN}/logs/transfer.log"
[ -f "$log" ] && echo "$log|domlog_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
fi
elif [ -n "$FILTER_USER" ]; then
# Specific user - get their domains
local user_domains=$(get_user_domains "$FILTER_USER" 2>/dev/null)
if [ -n "$user_domains" ]; then
while IFS= read -r domain; do
local log="/home/${FILTER_USER}/var/${domain}/logs/transfer.log"
[ -f "$log" ] && echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
done <<< "$user_domains"
fi
else
# All domains - find all transfer.log files (InterWorx uses 'transfer.log' not 'access_log')
find /home/*/var/*/logs -type f -name "transfer.log" 2>/dev/null | while read -r log; do
local domain=$(echo "$log" | grep -oE '/var/[^/]+' | sed 's|/var/||')
echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
done
fi
;;
plesk)
# Plesk: System vhosts logs
if [ -n "$FILTER_DOMAIN" ]; then
# Specific domain
for log in /var/www/vhosts/system/"$FILTER_DOMAIN"/logs/access_log \
/var/www/vhosts/system/"$FILTER_DOMAIN"/logs/access_ssl_log; do
[ -f "$log" ] && echo "$log|domlog_$FILTER_DOMAIN" >> "$LOG_FILES_LIST"
done
elif [ -n "$FILTER_USER" ]; then
# Specific user - get their domains
local user_domains=$(get_user_domains "$FILTER_USER" 2>/dev/null)
if [ -n "$user_domains" ]; then
while IFS= read -r domain; do
for log in /var/www/vhosts/system/"$domain"/logs/access_log \
/var/www/vhosts/system/"$domain"/logs/access_ssl_log; do
[ -f "$log" ] && echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
done
done <<< "$user_domains"
fi
else
# All domains
find /var/www/vhosts/system/*/logs -type f \( -name "access_log" -o -name "access_ssl_log" \) 2>/dev/null | \
while read -r log; do
local domain=$(echo "$log" | grep -oE '/system/[^/]+' | sed 's|/system/||')
echo "$log|domlog_$domain" >> "$LOG_FILES_LIST"
done
fi
;;
*)
# Standalone Apache - try common locations
if [ -f "/var/log/httpd/access_log" ]; then
echo "/var/log/httpd/access_log|domlog_standalone" >> "$LOG_FILES_LIST"
fi
if [ -f "/var/log/apache2/access.log" ]; then
echo "/var/log/apache2/access.log|domlog_standalone" >> "$LOG_FILES_LIST"
fi
;;
esac
# ModSecurity audit log (only if not filtering or matches filter)
if [ -f "$MODSEC_AUDIT_LOG" ]; then
if [ -z "$FILTER_USER" ] && [ -z "$FILTER_DOMAIN" ]; then
echo "$MODSEC_AUDIT_LOG|modsec_audit" >> "$LOG_FILES_LIST"
elif [ -n "$FILTER_DOMAIN" ]; then
# Will filter ModSec entries during processing
echo "$MODSEC_AUDIT_LOG|modsec_audit" >> "$LOG_FILES_LIST"
fi
fi
log_count=$(wc -l < "$LOG_FILES_LIST" 2>/dev/null || echo "0")
echo " Found $log_count log files to analyze"
if [ -n "$FILTER_USER" ]; then
echo " Scope: User '$FILTER_USER'"
elif [ -n "$FILTER_DOMAIN" ]; then
echo " Scope: Domain '$FILTER_DOMAIN'"
fi
echo ""
################################################################################
# Intelligent Filtering
################################################################################
is_noise() {
local line="$1"
local line_lower="${line,,}" # Convert to lowercase once
# Bot/Scanner patterns
[[ "$line_lower" =~ (bot|crawler|spider|scanner|nikto|nmap|masscan|sqlmap|nessus|acunetix|burp|shodan|censys|zgrab|nuclei|semrush|ahrefs|mj12) ]] && return 0
# Known scanner IPs
[[ "$line" =~ (45\.148\.|185\.220\.|89\.248\.165\.) ]] && return 0
# WordPress plugin deprecation warnings (not user-facing)
[[ "$line" =~ (PHP\ Deprecated|Deprecated.*plugin|call_user_func_array.*deprecated) ]] && return 0
# Non-critical PHP notices (unless critical indicators present)
if [[ "$line" =~ PHP\ Notice.*Undefined\ (variable|index|offset) ]] && ! [[ "$line_lower" =~ (fatal|error\ 500|white\ screen) ]]; then
return 0
fi
# Missing favicon/common assets (not real errors)
[[ "$line_lower" =~ (favicon\.ico|apple-touch-icon|robots\.txt|sitemap\.xml.*404) ]] && return 0
# Security probes
if [[ "$line_lower" =~ (wp-admin|wp-login|phpmyadmin|\.env|\.git|config\.php|xmlrpc|eval-stdin|shell\.php|c99\.php|r57\.php|adminer\.php) ]] && \
[[ "$line" =~ (404|403|not\ found) ]]; then
return 0
fi
# WordPress auto-updates and cron (normal operations)
[[ "$line_lower" =~ (wp-cron\.php|doing_cron|auto.*update) ]] && return 0
# Common plugin update checks (not errors)
[[ "$line_lower" =~ (update-check|version-check|api\.wordpress\.org) ]] && return 0
return 1
}
is_critical_user_facing() {
local line="$1"
local line_lower="${line,,}"
# 500 Internal Server Error (users see white page)
[[ "$line" =~ (\ 500\ |Internal\ Server\ Error) ]] && return 0
# PHP Fatal Errors (breaks functionality)
[[ "$line" =~ (PHP\ Fatal\ error|Fatal\ error:.*in\ /) ]] && return 0
# PHP Parse Errors (site completely broken)
[[ "$line" =~ (PHP\ Parse\ error|syntax\ error) ]] && return 0
# Database connection failures (site down)
[[ "$line" =~ (Error\ establishing.*database|Can\'t\ connect.*MySQL|Access\ denied\ for\ user.*database|Too\ many\ connections|MySQL\ server\ has\ gone\ away) ]] && return 0
# Memory exhaustion (white screen/incomplete pages)
[[ "$line" =~ (Allowed\ memory\ size.*exhausted|Out\ of\ memory|Fatal.*memory) ]] && return 0
# Segmentation fault (complete crash)
[[ "$line" =~ (Segmentation\ fault|signal\ 11) ]] && return 0
# Permission denied on critical files
if [[ "$line" =~ Permission\ denied ]] && [[ "$line" =~ (index\.php|wp-config\.php|\.htaccess|config\.php) ]]; then
return 0
fi
# File not found for MAIN page (404 on homepage/index)
[[ "$line" =~ (File\ does\ not\ exist.*index\.(php|html)|\ 404\ .*\"\ \"GET\ /) ]] && return 0
return 1
}
extract_useful_info() {
local line="$1"
local domain="unknown"
local file_path=""
local error_msg
# Extract domain using bash regex (faster than grep|sed pipeline)
if [[ "$line" =~ \[vhost\ ([^:]+) ]]; then
domain="${BASH_REMATCH[1]}"
elif [[ "$line" =~ ([a-zA-Z0-9.-]+\.(com|net|org|io|co|uk|us|dev)) ]]; then
domain="${BASH_REMATCH[1]}"
elif [[ "$line" =~ /home/([^/]+) ]]; then
domain="${BASH_REMATCH[1]}"
fi
# Extract file path if PHP error
if [[ "$line" =~ in\ (/[^ ]+\.php) ]]; then
file_path="${BASH_REMATCH[1]}"
fi
# Extract error message (clean up ModSec noise, timestamps, etc.)
# Use single sed command instead of pipeline
error_msg=$(echo "$line" | sed -E 's/^\[.*\] //; s/\[client [^]]*\] //; s/\[unique_id "[^"]*"\]//g; s/\[pid [^]]*\]//g; s/\[tid [^]]*\]//g' | cut -c1-150)
# Skip if error message is empty or just whitespace
error_msg="${error_msg#"${error_msg%%[![:space:]]*}"}" # ltrim
error_msg="${error_msg%"${error_msg##*[![:space:]]}"}" # rtrim
[ -z "$error_msg" ] && return 1
# Correlate to root cause
local root_cause=$(correlate_root_cause "$line" "$error_msg" "$domain")
echo "$domain|$file_path|$error_msg|$root_cause"
}
correlate_root_cause() {
local line="$1"
local error_msg="$2"
local domain="$3"
local cause="UNKNOWN"
local line_lower="${line,,}"
local error_lower="${error_msg,,}"
# .htaccess issues
if [[ "$line_lower" =~ (\.htaccess|invalid\ command|rewriterule|rewritecond) ]]; then
cause="HTACCESS"
# ModSecurity blocks
elif [[ "$line_lower" =~ (modsecurity|mod_security|waf) ]]; then
cause="MODSECURITY"
# PHP memory limit
elif [[ "$error_lower" =~ (memory.*exhausted|allowed\ memory\ size) ]]; then
# Get current memory limit for this domain/user
if [ -n "$domain" ] && [ "$domain" != "unknown" ]; then
user=$(grep -l "DNS.*$domain" /var/cpanel/users/* 2>/dev/null | head -1 | xargs basename 2>/dev/null)
if [ -n "$user" ]; then
mem_limit=$(grep -h "memory_limit" /home/$user/public_html/.user.ini /home/$user/.php.ini 2>/dev/null | tail -1 | cut -d'=' -f2 | tr -d ' ')
[ -n "$mem_limit" ] && cause="PHP_MEMORY:$mem_limit" || cause="PHP_MEMORY:default"
else
cause="PHP_MEMORY"
fi
else
cause="PHP_MEMORY"
fi
# PHP max execution time
elif [[ "$error_lower" =~ (max_execution_time|maximum\ execution\ time) ]]; then
cause="PHP_TIMEOUT"
# PHP upload/post size limits
elif [[ "$error_lower" =~ (upload_max_filesize|post_max_size) ]]; then
cause="PHP_UPLOAD_LIMIT"
# File permissions
elif [[ "$error_lower" =~ (permission\ denied|failed\ to\ open\ stream.*permission) ]]; then
cause="FILE_PERMISSIONS"
# Missing PHP modules/extensions
elif [[ "$error_lower" =~ (undefined\ function|call\ to\ undefined\ function|class\ .*\ not\ found) ]]; then
# Try to identify which module
if [[ "$error_lower" =~ (imagecreate|imagefilter|gd_) ]]; then
cause="MISSING_PHP_GD"
elif [[ "$error_msg" =~ (curl_|CURL) ]]; then
cause="MISSING_PHP_CURL"
elif [[ "$error_msg" =~ (json_|JSON) ]]; then
cause="MISSING_PHP_JSON"
elif [[ "$error_lower" =~ (mysqli|mysql_connect) ]]; then
cause="MISSING_PHP_MYSQLI"
else
cause="MISSING_PHP_MODULE"
fi
# Database issues
elif [[ "$error_lower" =~ (database|mysql|mysqli) ]]; then
if [[ "$error_lower" =~ (too\ many\ connections|max_connections) ]]; then
cause="DB_MAX_CONNECTIONS"
elif [[ "$error_lower" =~ (access\ denied|authentication) ]]; then
cause="DB_AUTH_FAILED"
elif [[ "$error_lower" =~ (gone\ away|lost\ connection) ]]; then
cause="DB_TIMEOUT"
else
cause="DB_ERROR"
fi
# Apache configuration
elif [[ "$error_lower" =~ (invalid\ uri|request\ exceeded\ the\ limit|limitrequestline) ]]; then
cause="APACHE_CONFIG"
# PHP parse/syntax errors (code issues)
elif [[ "$error_lower" =~ (parse\ error|syntax\ error|unexpected) ]]; then
cause="PHP_SYNTAX_ERROR"
# File not found (may indicate bad symlinks or missing files)
elif [[ "$error_lower" =~ (no\ such\ file|failed\ to\ open\ stream) ]]; then
cause="MISSING_FILE"
# Generic PHP fatal error
elif [[ "$error_lower" =~ fatal\ error ]]; then
cause="PHP_FATAL_ERROR"
# 500 errors without specific cause
elif [[ "$error_msg" =~ (500|Internal\ Server) ]]; then
cause="SERVER_ERROR_500"
fi
echo "$cause"
}
################################################################################
# Main Analysis
################################################################################
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " SCANNING FOR USER-IMPACTING ERRORS"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
total_lines=0
filtered_out=0
critical_found=0
# Analyze all discovered log files
while IFS='|' read -r log_path log_type; do
echo " Analyzing: $(basename "$log_path")..."
# Determine log type
is_access_log=false
is_modsec_log=false
[[ "$log_type" == domlog_* ]] && ! [[ "$log_path" =~ error ]] && is_access_log=true
[[ "$log_type" == modsec_* ]] && is_modsec_log=true
if $is_modsec_log; then
# ModSecurity audit log - parse for blocks/denials
while IFS= read -r line; do
((total_lines++))
# Skip if not a security event
echo "$line" | grep -qiE "ModSecurity.*Action.*Intercepted|status: (403|406|500)" || continue
# Extract domain/host if filtering
if [ -n "$FILTER_DOMAIN" ]; then
echo "$line" | grep -q "$FILTER_DOMAIN" || continue
fi
# Extract useful info
if echo "$line" | grep -qiE "SQL Injection|XSS|Command Injection|Path Traversal"; then
((critical_found++))
attack_type=$(echo "$line" | grep -oiE "SQL Injection|XSS|Command Injection|Path Traversal" | head -1)
uri=$(echo "$line" | grep -oE "uri: [^ ]+" | sed 's/uri: //' || echo "")
domain=$(echo "$line" | grep -oE "hostname: [^ ]+" | sed 's/hostname: //' || echo "unknown")
# Extract rule ID if available
rule_id=$(echo "$line" | grep -oE "id \"[0-9]+\"" | grep -oE "[0-9]+" || echo "")
root_cause="MODSECURITY"
[ -n "$rule_id" ] && root_cause="MODSECURITY:rule_$rule_id"
echo "$domain||ModSecurity blocked: $attack_type $uri|$root_cause" >> "$CRITICAL_ERRORS"
fi
done < <(tail -n 5000 "$log_path" 2>/dev/null)
elif $is_access_log; then
# Access log - look for 5xx status codes
# Use time-based filtering if possible, otherwise last 50k lines
cutoff_time=$(date -d "$HOURS_TO_ANALYZE hours ago" +%s 2>/dev/null || echo "0")
while IFS= read -r line; do
((total_lines++))
# Skip if bot/scanner
if is_noise "$line"; then
((filtered_out++))
# Track bot/scanner IPs
read -r ip _ _ _ _ _ _ _ <<< "$line"
if [[ "$ip" =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
flag_ip_attack "$ip" "BOT" 0 "Bot/scanner filtered in error analysis" >/dev/null 2>&1 &
fi
continue
fi
# Time filtering (Apache format: [DD/Mon/YYYY:HH:MM:SS +ZONE])
if [ "$cutoff_time" != "0" ]; then
if [[ "$line" =~ \[([0-9]{2}/[A-Z][a-z]{2}/[0-9]{4}:[0-9]{2}:[0-9]{2}:[0-9]{2}) ]]; then
log_date="${BASH_REMATCH[1]}"
log_time=$(date -d "${log_date/:/ }" +%s 2>/dev/null || echo "0")
[ "$log_time" != "0" ] && [ "$log_time" -lt "$cutoff_time" ] && continue
fi
fi
# Extract status code and URL using bash regex and read
if [[ "$line" =~ '"'[[:space:]](5[0-9]{2})[[:space:]] ]]; then
status="${BASH_REMATCH[1]}"
# Parse Apache log format: IP - - [timestamp] "METHOD URL PROTOCOL" STATUS SIZE
read -r ip _ _ timestamp _ request status_check _ <<< "$line"
# Extract URL from request (format: "GET /path HTTP/1.1")
if [[ "$request" =~ '"'[A-Z]+[[:space:]]([^[:space:]]+) ]]; then
url="${BASH_REMATCH[1]:0:80}"
else
url="/"
fi
# Extract timestamp
if [[ "$line" =~ \[([^]]+)\] ]]; then
timestamp="${BASH_REMATCH[1]}"
else
timestamp=""
fi
# Get domain from log filename
domain="${log_path##*/}" # basename
domain="${domain%%-*}" # remove everything after first dash
# Apply domain filter if set
if [ -n "$FILTER_DOMAIN" ] && [ "$domain" != "$FILTER_DOMAIN" ]; then
continue
fi
# Determine root cause from status code
case $status in
500) root_cause="SERVER_ERROR_500" ;;
502) root_cause="APACHE_CONFIG:bad_gateway" ;;
503) root_cause="APACHE_CONFIG:service_unavailable" ;;
504) root_cause="APACHE_CONFIG:gateway_timeout" ;;
*) root_cause="SERVER_ERROR_5XX" ;;
esac
((critical_found++))
echo "$domain||[$timestamp] HTTP $status - $url (from $ip)|$root_cause" >> "$CRITICAL_ERRORS"
fi
done < <(tail -n 50000 "$log_path" 2>/dev/null)
else
# Error log - look for critical errors
# Use time-based filtering if possible, otherwise last 50k lines
cutoff_time=$(date -d "$HOURS_TO_ANALYZE hours ago" +%s 2>/dev/null || echo "0")
while IFS= read -r line; do
((total_lines++))
# Skip noise
if is_noise "$line"; then
((filtered_out++))
continue
fi
# Time filtering (Apache/PHP error log format: [Day Mon DD HH:MM:SS YYYY])
if [ "$cutoff_time" != "0" ]; then
if [[ "$line" =~ \[([A-Z][a-z]{2}\ [A-Z][a-z]{2}\ [0-9]{2}\ [0-9]{2}:[0-9]{2}:[0-9]{2}\ [0-9]{4})\] ]]; then
log_date="${BASH_REMATCH[1]}"
log_time=$(date -d "$log_date" +%s 2>/dev/null || echo "0")
[ "$log_time" != "0" ] && [ "$log_time" -lt "$cutoff_time" ] && continue
fi
fi
# Apply user/domain filter if set
if [ -n "$FILTER_USER" ]; then
[[ "$line" =~ /home/$FILTER_USER ]] || continue
fi
if [ -n "$FILTER_DOMAIN" ]; then
[[ "$line" =~ $FILTER_DOMAIN ]] || continue
fi
# Check if it's critical and user-facing
if is_critical_user_facing "$line"; then
((critical_found++))
extract_useful_info "$line" >> "$CRITICAL_ERRORS"
fi
done < <(tail -n 50000 "$log_path" 2>/dev/null)
fi
done < "$LOG_FILES_LIST"
echo ""
echo "Scanned: $total_lines log entries"
echo "Filtered: $filtered_out noise entries (bots, warnings, etc.)"
echo "Found: $critical_found critical user-facing errors"
echo ""
################################################################################
# Generate Report
################################################################################
if [ ! -f "$CRITICAL_ERRORS" ] || [ ! -s "$CRITICAL_ERRORS" ]; then
echo ""
echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
echo -e "${GREEN} ✓ NO CRITICAL USER-FACING ERRORS FOUND!${NC}"
echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
echo ""
echo "Your websites appear to be functioning normally for real users."
echo "All errors found were from bots, scanners, or non-critical warnings."
echo ""
exit 0
fi
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " ⚠️ CRITICAL ERRORS AFFECTING REAL USERS"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
# Group by domain and count
echo -e "${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 (Top Issues)"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
# Group identical errors and count them
awk -F'|' '{
key = $1 "|" $3 "|" $4 # domain|error_msg|root_cause
file[$1"|"$3"|"$4] = $2 # Store file path
count[key]++
}
END {
for (key in count) {
split(key, parts, "|")
domain = parts[1]
error = parts[2]
root_cause = parts[3]
file_path = file[key]
# Skip empty errors
if (length(error) > 0) {
print count[key] "|" domain "|" file_path "|" error "|" root_cause
}
}
}' "$CRITICAL_ERRORS" | sort -t'|' -k1 -rn | head -20 | while IFS='|' read -r count domain file_path error_msg root_cause; do
# Color code by frequency
if [ "$count" -ge 10 ]; then
color="${RED}"
priority="[HIGH FREQUENCY]"
elif [ "$count" -ge 5 ]; then
color="${YELLOW}"
priority="[MEDIUM]"
else
color="${INFO_COLOR}"
priority=""
fi
echo -e "${color}● Occurred $count times${NC} $priority"
[ -n "$domain" ] && [ "$domain" != "unknown" ] && echo " Domain: $domain"
[ -n "$file_path" ] && echo " File: $file_path"
echo " Error: $error_msg"
# Display root cause with color coding and actionable fix
if [ -n "$root_cause" ] && [ "$root_cause" != "UNKNOWN" ]; then
echo -ne " ${CYAN}Root Cause: ${BOLD}"
case "$root_cause" in
HTACCESS)
echo -e "${YELLOW}⚙️ .htaccess Configuration${NC}"
echo " → Check .htaccess syntax in domain root"
echo " → Look for invalid RewriteRule or directives"
;;
MODSECURITY*)
rule=$(echo "$root_cause" | cut -d':' -f2)
echo -e "${YELLOW}🛡️ ModSecurity WAF Block${NC}"
[ -n "$rule" ] && echo " → Rule ID: $rule"
echo " → Check if this is a false positive"
echo " → Review: /usr/local/apache/logs/modsec_audit.log"
;;
PHP_MEMORY*)
limit=$(echo "$root_cause" | cut -d':' -f2)
echo -e "${RED}💾 PHP Memory Exhausted${NC}"
[ -n "$limit" ] && echo " → Current limit: $limit"
echo " → Increase memory_limit in .user.ini or php.ini"
echo " → Recommended: 256M minimum, 512M for WooCommerce"
;;
PHP_TIMEOUT)
echo -e "${YELLOW}⏱️ PHP Execution Timeout${NC}"
echo " → Increase max_execution_time in php.ini"
echo " → Recommended: 300 for imports/backups"
;;
PHP_UPLOAD_LIMIT)
echo -e "${YELLOW}📤 PHP Upload Size Limit${NC}"
echo " → Increase upload_max_filesize and post_max_size"
echo " → Match both values (e.g., 64M)"
;;
FILE_PERMISSIONS)
echo -e "${RED}🔒 File Permission Denied${NC}"
echo " → Check file ownership and permissions"
echo " → Files should be 644, directories 755"
echo " → Owner should match cPanel user"
;;
MISSING_PHP_GD)
echo -e "${RED}📦 Missing PHP GD Extension${NC}"
echo " → Install: yum install ea-phpXX-php-gd"
echo " → Required for image processing"
;;
MISSING_PHP_CURL)
echo -e "${RED}📦 Missing PHP cURL Extension${NC}"
echo " → Install: yum install ea-phpXX-php-curl"
;;
MISSING_PHP_*)
module=$(echo "$root_cause" | sed 's/MISSING_PHP_//' | tr '[:upper:]' '[:lower:]')
echo -e "${RED}📦 Missing PHP Extension: $module${NC}"
echo " → Install: yum install ea-phpXX-php-$module"
;;
DB_MAX_CONNECTIONS)
echo -e "${RED}🗄️ Database Max Connections Reached${NC}"
echo " → Check: mysql -e 'SHOW VARIABLES LIKE \"max_connections\"'"
echo " → Increase max_connections in my.cnf"
echo " → Or optimize slow queries reducing connection time"
;;
DB_AUTH_FAILED)
echo -e "${RED}🗄️ Database Authentication Failed${NC}"
echo " → Verify credentials in wp-config.php / config files"
echo " → Check database user permissions"
;;
DB_TIMEOUT)
echo -e "${YELLOW}🗄️ Database Connection Timeout${NC}"
echo " → MySQL server may be overloaded"
echo " → Check slow query log"
;;
DB_ERROR)
echo -e "${RED}🗄️ Database Error${NC}"
echo " → Check MySQL error log for details"
;;
APACHE_CONFIG*)
issue=$(echo "$root_cause" | cut -d':' -f2)
echo -e "${YELLOW}⚙️ Apache Configuration${NC}"
[ -n "$issue" ] && echo " → Issue: $issue"
echo " → Check Apache config and vhost settings"
;;
PHP_SYNTAX_ERROR)
echo -e "${RED}⚠️ PHP Syntax Error in Code${NC}"
echo " → Review recent code changes"
echo " → Check for missing semicolons, brackets, quotes"
;;
MISSING_FILE)
echo -e "${YELLOW}📄 File Not Found${NC}"
echo " → File may have been deleted or moved"
echo " → Check for broken symlinks"
;;
PHP_FATAL_ERROR)
echo -e "${RED}⚠️ PHP Fatal Error${NC}"
echo " → Review PHP error logs for details"
echo " → May be compatibility issue or code bug"
;;
SERVER_ERROR_500)
echo -e "${RED}🔥 Generic 500 Internal Server Error${NC}"
echo " → Check PHP/Apache error logs for specifics"
;;
*)
echo -e "${NC}$root_cause"
;;
esac
fi
echo ""
done
################################################################################
# Root Cause Summary
################################################################################
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " 📊 ROOT CAUSE BREAKDOWN"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
# Count errors by root cause
cut -d'|' -f4 "$CRITICAL_ERRORS" | grep -v "^$" | sort | uniq -c | sort -rn | while read -r count cause; do
# Clean up cause display
clean_cause=$(echo "$cause" | sed 's/:.*//; s/_/ /g')
# Color code by severity
case "$cause" in
PHP_MEMORY*|DB_MAX_CONNECTIONS|PHP_FATAL_ERROR|SERVER_ERROR_500)
color="${RED}"; icon="🔥" ;;
HTACCESS|MODSECURITY*|PHP_TIMEOUT|DB_*)
color="${YELLOW}"; icon="⚠️ " ;;
MISSING_PHP*|FILE_PERMISSIONS)
color="${YELLOW}"; icon="📦" ;;
*)
color="${INFO_COLOR}"; icon="•" ;;
esac
printf " ${color}${icon} %-35s %4d errors${NC}\n" "$clean_cause" "$count"
done
echo ""
################################################################################
# Intelligent Recommendations
################################################################################
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " 🔧 RECOMMENDED ACTIONS"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
# Detect issue types and provide specific recommendations
if grep -qiE "500|Internal Server" "$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