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This commit is contained in:
308
mail-status.sh
308
mail-status.sh
@@ -1,241 +1,203 @@
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#!/bin/bash
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#!/bin/bash
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# Postfix Mail Summary Script (Hardened, Secure & Memory-Safe Version)
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# Postfix Mail Summary Tool - Hardened & Domain-Focused Version (v2026.1.1)
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# ==============================================================================
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# ==============================================================================
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# 0. RESOURCE LIMITS
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# 1. RESOURCE LIMITS & ENVIRONMENT
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# ==============================================================================
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# ==============================================================================
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ulimit -t 15
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ulimit -t 15
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ulimit -v 500000
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ulimit -v 500000
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ulimit -f 102400
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ulimit -f 102400
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# ==============================================================================
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# 1. LOCKFILE & PRE-FLIGHT CHECKS
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# ==============================================================================
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LOCKFILE="/tmp/postfix_summary.lock"
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if [ -f "$LOCKFILE" ]; then
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PID=$(cat "$LOCKFILE" 2>/dev/null)
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if [ -n "$PID" ] && ps -p "$PID" > /dev/null 2>&1; then
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echo "Error: Another instance (PID $PID) is already running." >&2
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exit 1
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else
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rm -f "$LOCKFILE"
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fi
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fi
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find /tmp -name "postfix_log.*" -mmin +10 -user root -delete 2>/dev/null || true
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TMP_DATA=$(mktemp /tmp/postfix_log.XXXXXX)
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trap 'rm -f "$LOCKFILE" "$TMP_DATA" 2>/dev/null' EXIT
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echo $$ > "$LOCKFILE"
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set -euo pipefail
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set -euo pipefail
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IFS=$'\n\t'
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IFS=$'\n\t'
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# ==============================================================================
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# ==============================================================================
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# 2. HELP MESSAGE
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# 2. LOCKFILE & PRE-FLIGHT CHECKS
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# ==============================================================================
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# Lockfile fallback if /var/lock is not writable
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LOCKFILE="/var/lock/postfix_summary.lock"
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[ -w /var/lock ] || LOCKFILE="/tmp/postfix_summary.lock"
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exec 9>>"$LOCKFILE"
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if ! flock -n 9; then
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echo "Error: Another instance is already running." >&2
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exit 1
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fi
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TMP_DATA=$(mktemp /tmp/postfix_log.XXXXXX)
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trap 'rm -f "$TMP_DATA" 2>/dev/null' EXIT
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export USE_COLOR=0
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[[ -t 1 ]] && USE_COLOR=1
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readonly USE_COLOR
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# ==============================================================================
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# 3. HELP MENU
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# ==============================================================================
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# ==============================================================================
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show_help() {
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show_help() {
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echo "Usage: $0 [OPTIONS]"
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echo "Usage: $0 [OPTIONS]"
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echo ""
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echo ""
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echo "Options:"
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echo "Options:"
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echo " -h, --help Display this help message"
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echo " -h, --help Display this help message"
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echo " -l, --list NUMBER Show the last X records (default: 10, max: 1000)"
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echo " -l, --list NUMBER Number of records to show (1-1000, default: 10)"
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echo " -f, --from EMAIL/DOMAIN Filter by SENDER"
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echo " -f, --from EMAIL/DOMAIN Filter by sender address"
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echo " -t, --to EMAIL/DOMAIN Filter by RECIPIENT"
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echo " -t, --to EMAIL/DOMAIN Filter by recipient address"
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echo " -i, --id QUEUE_ID Search for a specific ID (Shows Detail View)"
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echo " -i, --id QUEUE_ID Search for a specific ID (Detail View)"
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echo " -d, --date \"MMM DD\" Filter by date (e.g., \"Mar 27\")"
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echo " -d, --date \"MMM DD\" Filter by date (e.g., \"Mar 27\")"
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echo " Use \"\" to search through all available logs"
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exit 0
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exit 0
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}
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}
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# ==============================================================================
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# ==============================================================================
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# 3. INITIALIZATION & ARGUMENT PARSING
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# 4. ARGUMENT PARSING
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# ==============================================================================
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# ==============================================================================
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export USE_COLOR=0
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LIMIT=10; readonly MAX_LIMIT=1000; readonly MAX_INPUT_LEN=100
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[[ -t 1 ]] && USE_COLOR=1
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FROM_FILTER=""; TO_FILTER=""; ID_FILTER=""; DATE_FILTER=""; DATE_SET=0
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LIMIT=10
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MAX_LIMIT=1000
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FROM_FILTER=""
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TO_FILTER=""
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ID_FILTER=""
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DATE_FILTER=""
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MAX_INPUT_LEN=100
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# Helper function to validate arguments
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check_arg() {
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check_arg() {
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if [[ -z "${2:-}" || "$2" == -* ]]; then
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local opt="$1"
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echo "Error: Option '$1' requires an argument." >&2
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shift
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if [[ "$#" -lt 1 ]]; then
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echo "Error: Option '$opt' requires an argument (can be \"\")." >&2
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exit 1
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exit 1
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fi
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fi
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}
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}
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sanitize() {
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echo "${1:0:$MAX_INPUT_LEN}" | tr -cd '[:alnum:]@._ -'
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}
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while [[ "$#" -gt 0 ]]; do
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while [[ "$#" -gt 0 ]]; do
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case $1 in
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case $1 in
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-h|--help) show_help ;;
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-h|--help) show_help ;;
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-l|--list)
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-l|--list) check_arg "$1" "${2:-}"; if [[ "$2" =~ ^[0-9]+$ ]]; then LIMIT="$2"; fi; shift ;;
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check_arg "$1" "${2:-}"
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-f|--from) check_arg "$1" "${2:-}"; FROM_FILTER=$(sanitize "${2:-}"); shift ;;
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if [[ "$2" =~ ^[0-9]+$ ]]; then LIMIT="$2"; else LIMIT=10; fi
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-t|--to) check_arg "$1" "${2:-}"; TO_FILTER=$(sanitize "${2:-}"); shift ;;
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(( LIMIT > MAX_LIMIT )) && LIMIT=$MAX_LIMIT
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-i|--id) check_arg "$1" "${2:-}"; ID_FILTER=$(sanitize "${2:-}"); shift ;;
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shift ;;
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-f|--from)
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check_arg "$1" "${2:-}"
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FROM_FILTER="${2:0:$MAX_INPUT_LEN}"; shift ;;
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-t|--to)
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check_arg "$1" "${2:-}"
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TO_FILTER="${2:0:$MAX_INPUT_LEN}"; shift ;;
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-i|--id)
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check_arg "$1" "${2:-}"
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ID_FILTER="${2:0:$MAX_INPUT_LEN}"; shift ;;
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-d|--date)
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-d|--date)
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check_arg "$1" "${2:-}"
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if [[ "$#" -lt 2 ]]; then echo "Error: Option '$1' requires an argument."; exit 1; fi
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DATE_FILTER="${2:0:$MAX_INPUT_LEN}"; shift ;;
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DATE_FILTER=$(sanitize "${2:-}"); DATE_SET=1; shift ;;
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*) echo "Unknown parameter: $1. Use -h for help." >&2; exit 1 ;;
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*) echo "Unknown option: $1" >&2; exit 1 ;;
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esac
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esac
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shift
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shift
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done
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done
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DETAIL_VIEW=0
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# Limit validation
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if [[ -n "$ID_FILTER" && "$ID_FILTER" != "NOQUEUE" ]]; then DETAIL_VIEW=1; fi
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(( LIMIT < 1 )) && LIMIT=1
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(( LIMIT > MAX_LIMIT )) && LIMIT=$MAX_LIMIT
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if [ "$DATE_SET" -eq 0 ]; then DATE_FILTER=$(date '+%b %e'); fi
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readonly DATE_FILTER
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DETAIL_VIEW=0; [[ -n "$ID_FILTER" && "$ID_FILTER" != "NOQUEUE" ]] && DETAIL_VIEW=1
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# ==============================================================================
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# ==============================================================================
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# 4. LOG FILE COLLECTION
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# 5. LOG FILE DISCOVERY
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# ==============================================================================
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# ==============================================================================
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LOG_FILES=()
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LOG_FILES=()
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while IFS= read -r -d '' file; do
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while IFS= read -r -d '' file; do LOG_FILES+=("$file"); done < <(find /var/log -maxdepth 1 -name 'maillog*' -type f -print0 2>/dev/null | sort -z -r)
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LOG_FILES+=("$file")
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[ ${#LOG_FILES[@]} -eq 0 ] && { echo "Error: No Postfix logs found." >&2; exit 1; }
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done < <(find /var/log -maxdepth 1 -name 'maillog*' -type f -print0 2>/dev/null | sort -z)
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if [ ${#LOG_FILES[@]} -eq 0 ]; then
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echo "Error: No Postfix logs found in /var/log/." >&2
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exit 1
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fi
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# ==============================================================================
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# ==============================================================================
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# 5. OPTIMIZED LOG READING
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# 6. LOG PROCESSING (AWK ENGINE)
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# ==============================================================================
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# ==============================================================================
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read_logs() {
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process_logs() {
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if [[ -z "$DATE_FILTER" ]]; then DATE_FILTER=$(date '+%b %e'); fi
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for log in "${LOG_FILES[@]}"; do
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for log in "${LOG_FILES[@]}"; do
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if [[ ! -r "$log" ]]; then continue; fi
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[ ! -r "$log" ] && continue
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if [[ "$log" =~ \.gz$ ]]; then
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if [[ "$log" =~ \.gz$ ]]; then
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zcat -f -- "$log" | awk -v d_filt="$DATE_FILTER" 'substr($0,1,length(d_filt)) == d_filt'
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gzip -t "$log" 2>/dev/null && zcat -- "$log"
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else
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else
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cat -- "$log" | awk -v d_filt="$DATE_FILTER" 'substr($0,1,length(d_filt)) == d_filt'
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cat -- "$log"
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fi
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fi
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done
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done
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}
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}
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# ==============================================================================
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process_logs | awk -v d_filt="$DATE_FILTER" -v f_filt="$FROM_FILTER" -v t_filt="$TO_FILTER" -v i_filt="$ID_FILTER" '
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# 6. LOG ANALYSIS (AWK)
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# ==============================================================================
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read_logs | awk -v f_filt="$FROM_FILTER" -v t_filt="$TO_FILTER" -v i_filt="$ID_FILTER" -v d_mode="$DETAIL_VIEW" '
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function shorten(addr, max_len) {
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if (d_mode == 1) return addr;
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if (length(addr) <= max_len) return addr;
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return substr(addr, 1, max_len-3) "...";
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}
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BEGIN {
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BEGIN {
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blue="\033[1;34m"; bold="\033[1m"; reset="\033[0m"; green="\033[1;32m"; red="\033[1;31m"; yellow="\033[1;33m"; gray="\033[0;90m"; cyan="\033[0;36m";
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split("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec", n);
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if (ENVIRON["USE_COLOR"] != "1") { blue=""; bold=""; reset=""; green=""; red=""; yellow=""; gray=""; cyan=""; }
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for(i in n) { m[n[i]]=sprintf("%02d",i); months[n[i]]=1; }
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db_count = 0;
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if (d_mode == 0)
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printf "%-16s %-12s %-16s %-36s %-31s %-12s %s\n", "DATE-TIME", "ID", "CLIENT_IP", "SENDER", "RECIPIENT", "STATUS", "REASON"
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}
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}
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!($1 in months) { next }
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{ if (length($0) < 20 || length($0) > 2048) next; }
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(d_filt != "" && substr($0, 1, length(d_filt)) != d_filt) { next }
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{
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{
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if (length($0) < 20 || length($0) > 2000) next;
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if (db_count > 100000) { split("", db_from); split("", db_time); split("", db_in_ip); db_count = 0; }
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full_time = $1 "-" $2 "-" $3;
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qid = ""; for(i=1; i<=9; i++) if($i ~ /^[A-F0-9]+:$/) { qid=$i; gsub(/:/,"",qid); break; }
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qid = "";
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curr_t = $1"-"$2"_"$3;
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if ($6 ~ /^[A-F0-9]+:$/) { qid = $6; gsub(/:/, "", qid); }
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if (qid != "" && !(qid in db_from)) { db_count++; }
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else if ($5 ~ /^[A-F0-9]+:$/) { qid = $5; gsub(/:/, "", qid); }
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if (index($0, "amavis") > 0 && index($0, "queued_as:") > 0) {
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match($0, /queued_as: [A-F0-9]+/); aqid = substr($0, RSTART+11, RLENGTH-11);
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if (qid == "" && index($0, "NOQUEUE") == 0) next;
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if (match($0, /\[[0-9]{1,3}\.[0-9.]+/)) db_in_ip[aqid] = substr($0, RSTART+1, RLENGTH-1);
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if (index($0, "client=") > 0) {
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match($0, /\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\]/);
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if (RLENGTH > 0) client_ip[qid] = substr($0, RSTART+1, RLENGTH-2);
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}
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}
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if (index($0, "from=<") > 0) {
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if (qid != "" && index($0, "client=") > 0) {
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match($0, /from=<[^>]+>/);
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if (match($0, /\[[0-9]{1,3}\.[0-9.]+/)) {
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if (RLENGTH > 0) from[qid] = substr($0, RSTART+6, RLENGTH-7);
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cip = substr($0, RSTART+1, RLENGTH-1);
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if (cip != "127.0.0.1" && db_in_ip[qid] == "") db_in_ip[qid] = cip;
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}
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}
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db_time[qid] = curr_t;
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if (index($0, "to=<") > 0 && index($0, "status=") > 0) {
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}
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s_ip = (client_ip[qid] != "") ? client_ip[qid] : "local";
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if (qid != "" && index($0, "from=<") > 0) {
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if (s_ip == "127.0.0.1") { delete client_ip[qid]; delete from[qid]; next; }
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match($0, /from=<[^>]*>/); if (RLENGTH > 0) db_from[qid] = substr($0, RSTART+6, RLENGTH-7);
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}
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s_from = (from[qid] != "") ? from[qid] : "-";
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if (qid != "" && index($0, "to=<") > 0 && index($0, "status=") > 0) {
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match($0, /to=<[^>]+>/); s_to = (RLENGTH > 0) ? substr($0, RSTART+4, RLENGTH-5) : "-";
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if (index($0, "relay=127.0.0.1") > 0 || index($0, "10025") > 0) next;
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match($0, /status=[a-z]+/); s_stat = (RLENGTH > 0) ? substr($0, RSTART+7, RLENGTH-7) : "unknown";
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match($0, /to=<[^>]*>/); s_to = substr($0, RSTART+4, RLENGTH-5);
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match($0, /status=[a-z]+/); s_st = substr($0, RSTART+7, RLENGTH-7);
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s_reason = "OK"; scol = green; r_col = cyan;
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rip = ""; if (match($0, /relay=[^ ]+\[[0-9]{1,3}\.[0-9.]+/)) {
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if (s_stat != "sent") {
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temp_m = substr($0, RSTART, RLENGTH); match(temp_m, /\[[0-9.]+/); rip = substr(temp_m, RSTART+1, RLENGTH-1);
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if (s_stat == "deferred") { scol = yellow; r_col = yellow; }
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}
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else { scol = red; r_col = red; }
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final_ip = (rip != "" && rip != "127.0.0.1") ? rip : (db_in_ip[qid] != "" ? db_in_ip[qid] : "local");
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if (match($0, /\([^)]*\)/)) {
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s_re = "OK"; if (match($0, /\([^)]*\)/)) { s_re = substr($0, RSTART+1, RLENGTH-2); gsub(/ /,"_",s_re); }
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s_reason = substr($0, RSTART+1, RLENGTH-2);
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s_f = (db_from[qid] != "") ? db_from[qid] : "-";
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if (d_mode == 0 && length(s_reason) > 30) s_reason = substr(s_reason, 1, 27) "..";
|
s_tm = (db_time[qid] != "") ? db_time[qid] : curr_t;
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||||||
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if ((f_filt == "" || index(s_f, f_filt) > 0) && (t_filt == "" || index(s_to, t_filt) > 0) && (i_filt == "" || index(qid, i_filt) > 0)) {
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sort_k = m[$1] sprintf("%02d", $2); tm_tmp=$3; gsub(/:/,"",tm_tmp); sort_k = sort_k tm_tmp;
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print sort_k " " s_tm " " qid " " final_ip " " s_f " " s_to " " s_st " " s_re;
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}
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}
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}
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}
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if (index($0, "NOQUEUE: reject:") > 0 && (i_filt == "" || i_filt == "NOQUEUE")) {
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if ((f_filt == "" || index(s_from, f_filt) > 0) && (t_filt == "" || index(s_to, t_filt) > 0) && (i_filt == "" || index(qid, i_filt) > 0)) {
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match($0, /from=<[^>]*>/); f=(RLENGTH>0)?substr($0, RSTART+6, RLENGTH-7):"-";
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if (d_mode == 1) {
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match($0, /to=<[^>]*>/); t=(RLENGTH>0)?substr($0, RSTART+4, RLENGTH-5):"-";
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printf "\n%s%s--- Detail for ID: %s ---%s\n", bold, blue, qid, reset;
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if (match($0, /\[[0-9]{1,3}\.[0-9.]+/)) nip = substr($0, RSTART+1, RLENGTH-1); else nip = "unknown";
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printf "%-12s : %s\n", "Date", full_time;
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s_st = (index($0, "Greylisted") > 0) ? "GREYLIST" : "REJECT";
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printf "%-12s : %s\n", "Client IP", s_ip;
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s_re = "Rejected"; if (match($0, /: [^;]+; /)) s_re = substr($0, RSTART+2, RLENGTH-4); gsub(/ /,"_",s_re);
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printf "%-12s : %s\n", "Sender", s_from;
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sort_k = m[$1] sprintf("%02d", $2); tm_tmp=$3; gsub(/:/,"",tm_tmp); sort_k = sort_k tm_tmp;
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||||||
printf "%-12s : %s\n", "Recipient", s_to;
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if ((f_filt == "" || index(f, f_filt) > 0) && (t_filt == "" || index(t, t_filt) > 0)) {
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||||||
printf "%-12s : %s%s%s\n", "Status", scol, s_stat, reset;
|
print sort_k " " curr_t " NOQUEUE " nip " " f " " t " " s_st " " s_re;
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printf "%-12s : %s%s%s\n", "Reason", r_col, s_reason, reset;
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||||||
printf "%s--------------------------------%s\n", gray, reset;
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|
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} else {
|
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printf "%s%-16s %s%-12s%s %s%-16s%s %-36s %-31s %s%-12s%s %s[%s]%s\n",
|
|
||||||
reset, full_time, blue, qid, reset, gray, s_ip, reset, shorten(s_from, 35), shorten(s_to, 30), scol, s_stat, reset, r_col, s_reason, reset;
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||||||
}
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|
||||||
}
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|
||||||
delete client_ip[qid]; delete from[qid];
|
|
||||||
}
|
|
||||||
|
|
||||||
if (index($0, "NOQUEUE: reject:") > 0) {
|
|
||||||
match($0, /from=<[^>]+>/); f = (RLENGTH > 0) ? substr($0, RSTART+6, RLENGTH-7) : "-";
|
|
||||||
match($0, /to=<[^>]+>/); t = (RLENGTH > 0) ? substr($0, RSTART+4, RLENGTH-5) : "-";
|
|
||||||
n_ip = "unknown";
|
|
||||||
if (match($0, /\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\]/)) n_ip = substr($0, RSTART+1, RLENGTH-2);
|
|
||||||
|
|
||||||
s_reason = "Blocked";
|
|
||||||
if (match($0, /[0-9](\.[0-9])+ [^;]+/)) s_reason = substr($0, RSTART, RLENGTH);
|
|
||||||
else if (match($0, /[0-9]{3} [^;]+/)) s_reason = substr($0, RSTART, RLENGTH);
|
|
||||||
|
|
||||||
# --- NOVÁ LOGIKA PRE GREYLIST ---
|
|
||||||
s_stat = "REJECT"; scol = red;
|
|
||||||
if (index($0, "Greylisted") > 0) {
|
|
||||||
s_stat = "GREYLIST";
|
|
||||||
scol = yellow;
|
|
||||||
}
|
|
||||||
# --------------------------------
|
|
||||||
|
|
||||||
if (d_mode == 0 && length(s_reason) > 30) s_reason = substr(s_reason, 1, 27) "..";
|
|
||||||
|
|
||||||
if ((f_filt == "" || index(f, f_filt) > 0) && (t_filt == "" || index(t, t_filt) > 0) && (i_filt == "" || i_filt == "NOQUEUE" || index("NOQUEUE", i_filt) > 0)) {
|
|
||||||
printf "%s%-16s %s%-12s%s %s%-16s%s %-36s %-31s %s%-12s%s %s[%s]%s\n",
|
|
||||||
reset, full_time, red, "NOQUEUE", reset, gray, n_ip, reset, shorten(f, 35), shorten(t, 30), scol, s_stat, reset, yellow, s_reason, reset;
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}' > "$TMP_DATA"
|
}' > "$TMP_DATA"
|
||||||
|
|
||||||
# ==============================================================================
|
# ==============================================================================
|
||||||
# 7. FINAL OUTPUT
|
# 7. FINAL OUTPUT RENDERING
|
||||||
# ==============================================================================
|
# ==============================================================================
|
||||||
if [[ "$DETAIL_VIEW" -eq 1 ]]; then
|
if [[ "$DETAIL_VIEW" -eq 1 ]]; then
|
||||||
# If Detail View was requested but no matching ID was found
|
if [ ! -s "$TMP_DATA" ]; then echo "No records found for ID: $ID_FILTER"; exit 0; fi
|
||||||
if [ ! -s "$TMP_DATA" ]; then
|
sort -n "$TMP_DATA" | awk -v u_col="$USE_COLOR" '{
|
||||||
echo "No records found for ID: $ID_FILTER"
|
blue=(u_col=="1"?"\033[1;34m":""); reset=(u_col=="1"?"\033[0m":"");
|
||||||
else
|
tm=$2; gsub(/_/," ",tm); qid=$3; ip=$4;
|
||||||
cat "$TMP_DATA"
|
f=$5; gsub(/[^[:print:]]/, "", f);
|
||||||
fi
|
t=$6; gsub(/[^[:print:]]/, "", t);
|
||||||
|
st=$7;
|
||||||
|
r=$8; gsub(/[^[:print:]]/, "", r); gsub(/_/," ",r);
|
||||||
|
printf "\n%s--- Detail for ID: %s ---%s\nDate: %s\nExternal IP: %s\nFrom: %s\nTo: %s\nStatus: %s\nReason: %s\n", blue,qid,reset,tm,ip,f,t,st,r
|
||||||
|
}'
|
||||||
else
|
else
|
||||||
head -n 1 "$TMP_DATA"
|
[[ "$USE_COLOR" -eq 1 ]] && printf "\033[1m"
|
||||||
sed '1d' "$TMP_DATA" | tail -n "$LIMIT"
|
printf "%-16s %-12s %-16s %-36s %-31s %-12s %s\n" "DATE-TIME" "QUEUE_ID" "EXT_IP" "SENDER" "RECIPIENT" "STATUS" "REASON"
|
||||||
|
[[ "$USE_COLOR" -eq 1 ]] && printf "\033[0m"
|
||||||
|
|
||||||
|
sort -n "$TMP_DATA" | tail -n "$LIMIT" | awk -v u_col="$USE_COLOR" '
|
||||||
|
function d_cut(e, m) { if(length(e)<=m)return e; return ".." substr(e, length(e)-m+2); }
|
||||||
|
BEGIN { b="\033[1;34m"; r="\033[0m"; g="\033[1;32m"; rd="\033[1;31m"; y="\033[1;33m"; gr="\033[0;90m"; c="\033[0;36m"; if(u_col!="1")b=r=g=rd=y=gr=c=""; }
|
||||||
|
{
|
||||||
|
tm=$2; gsub(/_/," ",tm); id=$3; ip=$4;
|
||||||
|
from=$5; gsub(/[^[:print:]]/, "", from);
|
||||||
|
to=$6; gsub(/[^[:print:]]/, "", to);
|
||||||
|
st=$7;
|
||||||
|
re_f=$8; gsub(/[^[:print:]]/, "", re_f); gsub(/_/," ",re_f);
|
||||||
|
re = (match(re_f, /[0-9]{3} [0-9]\.[0-9]\.[0-9]/)) ? substr(re_f, RSTART, RLENGTH) : substr(re_f, 1, 15);
|
||||||
|
scol = (st == "sent") ? g : (st == "deferred" || st == "GREYLIST" ? y : rd);
|
||||||
|
printf "%-16s %s%-12s%s %s%-16s%s %-36s %-31s %s%-12s%s %s[%s]%s\n", tm, (id=="NOQUEUE"?rd:b), id, r, gr, sprintf("%.15s", ip), r, d_cut(from, 35), d_cut(to, 30), scol, st, r, (st=="sent"?c:scol), re, r;
|
||||||
|
}'
|
||||||
fi
|
fi
|
||||||
Reference in New Issue
Block a user