#!/bin/bash

################################################################################
# IP Blacklist Checker
################################################################################
# Purpose: Check if server IP is blacklisted
################################################################################

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
source "$SCRIPT_DIR/lib/common-functions.sh"
source "$SCRIPT_DIR/lib/system-detect.sh"

show_banner "IP Blacklist Checker"

# Get server's public IP
print_info "Detecting server IP address..."
SERVER_IP=$(curl -s ifconfig.me || curl -s icanhazip.com || curl -s ipecho.net/plain)

if [ -z "$SERVER_IP" ]; then
    print_error "Could not detect server IP address"
    exit 1
fi

print_success "Server IP: $SERVER_IP"
echo ""

# Common blacklists to check
BLACKLISTS=(
    "zen.spamhaus.org"
    "bl.spamcop.net"
    "b.barracudacentral.org"
    "dnsbl.sorbs.net"
    "bl.spameatingmonkey.net"
    "dnsbl-1.uceprotect.net"
    "cbl.abuseat.org"
    "psbl.surriel.com"
)

print_header "Checking Blacklists"
echo ""

LISTED=0
NOT_LISTED=0

for bl in "${BLACKLISTS[@]}"; do
    # Reverse IP for DNS lookup
    REVERSED_IP=$(echo $SERVER_IP | awk -F. '{print $4"."$3"."$2"."$1}')

    # Check if listed
    if host "$REVERSED_IP.$bl" &>/dev/null; then
        print_error "✗ LISTED on $bl"
        ((LISTED++))
    else
        print_success "✓ Not listed on $bl"
        ((NOT_LISTED++))
    fi
done

echo ""
print_header "Summary"

if [ "$LISTED" -eq 0 ]; then
    print_success "✓ Server IP is not blacklisted ($NOT_LISTED blacklists checked)"
else
    print_warning "⚠ Server IP is listed on $LISTED blacklist(s)"
    echo ""
    print_info "To delist your IP:"
    echo "  1. Fix the underlying issue (spam, malware, etc.)"
    echo "  2. Visit each blacklist's removal page"
    echo "  3. Request delisting with justification"
    echo ""
    echo "Common delisting links:"
    echo "  Spamhaus: https://www.spamhaus.org/lookup/"
    echo "  SpamCop: https://www.spamcop.net/bl.shtml"
    echo "  Barracuda: https://www.barracudacentral.org/rbl/removal-request"
fi

echo ""