Import x-panel source
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289
dnsjc.sh
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289
dnsjc.sh
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#!/usr/bin/env bash
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set -u
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set -o pipefail
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COUNT=${COUNT:-10}
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TOPN=${TOPN:-30}
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SLEEP_META=${SLEEP_META:-0.15}
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META_CACHE_DIR="${META_CACHE_DIR:-/tmp/dns_meta_cache}"
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mkdir -p "$META_CACHE_DIR" >/dev/null 2>&1 || true
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# deps
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require_cmd() { command -v "$1" >/dev/null 2>&1 || { echo "missing dependency: $1"; exit 1; }; }
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require_cmd curl
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require_cmd awk
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require_cmd sed
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require_cmd tr
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require_cmd grep
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require_cmd ping
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PING_BIN="ping"
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PING6_BIN="ping -6"
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if command -v ping6 >/dev/null 2>&1; then
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PING6_BIN="ping6"
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fi
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# color banner (red)
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if [ -t 1 ] && [ "${TERM:-}" != "dumb" ]; then
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RED=$'\033[1;31m'
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RESET=$'\033[0m'
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else
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RED=""
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RESET=""
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fi
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echo ""
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printf "%b\n\n" "${RED}〔X-Panel-Pro 面板〕专属 “服务器 DNS 检测”${RESET}"
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# extract valid IPs (IPv4 strict / IPv6 loose)
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extract_ips() {
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sed -E 's/<[^>]+>/ /g' \
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| tr -c '0-9A-Fa-f:.' '\n' \
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| grep -E '(^([0-9]{1,3}\.){3}[0-9]{1,3}$)|(^([0-9A-Fa-f]{0,4}:){2,7}[0-9A-Fa-f]{0,4}$)' \
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| awk '!seen[$0]++' \
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| awk -F. '
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$0 ~ /:/ { print; next }
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NF==4 {
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ok=1
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for(i=1;i<=4;i++){
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if($i !~ /^[0-9]+$/ || $i<0 || $i>255){ ok=0; break }
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}
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if(ok) print $0
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}
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'
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}
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# filter private/reserved IPv4
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is_public_ipv4() {
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local ip="$1"; IFS=. read -r a b c d <<<"$ip" || return 1
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if ((a==10)) || ((a==127)) || ((a==192 && b==168)) || ((a==169 && b==254)) \
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|| ((a==172 && b>=16 && b<=31)) || ((a==100 && b>=64 && b<=127)) \
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|| ((a==0)) || ((a>=224)); then
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return 1
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fi
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return 0
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}
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# normalize country to slug
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normalize_country_to_slug() {
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local raw="$1"
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local x compact
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x=$(printf '%s' "$raw" | tr '[:upper:]' '[:lower:]')
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x=$(printf '%s' "$x" | sed -E 's/^[[:space:]]+|[[:space:]]+$//g')
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compact=$(printf '%s' "$x" | sed -E 's/[^a-z0-9]+//g')
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case "$compact" in
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jp) echo "japan"; return;;
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kr|rok) echo "southkorea"; return;;
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us|usa) echo "unitedstates"; return;;
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uk|gb) echo "unitedkingdom"; return;;
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ae|uae) echo "unitedarabemirates"; return;;
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hk) echo "hongkong"; return;;
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tw) echo "taiwan"; return;;
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cn) echo "china"; return;;
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de) echo "germany"; return;;
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fr) echo "france"; return;;
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it) echo "italy"; return;;
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es) echo "spain"; return;;
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ru) echo "russia"; return;;
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sg) echo "singapore"; return;;
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th) echo "thailand"; return;;
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vn) echo "vietnam"; return;;
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ph) echo "philippines"; return;;
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id) echo "indonesia"; return;;
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my) echo "malaysia"; return;;
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au) echo "australia"; return;;
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nz) echo "newzealand"; return;;
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nl) echo "netherlands"; return;;
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be) echo "belgium"; return;;
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pl) echo "poland"; return;;
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cz) echo "czechia"; return;;
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ch) echo "switzerland"; return;;
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at) echo "austria"; return;;
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se) echo "sweden"; return;;
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no) echo "norway"; return;;
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fi) echo "finland"; return;;
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pt) echo "portugal"; return;;
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ro) echo "romania"; return;;
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hu) echo "hungary"; return;;
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sk) echo "slovakia"; return;;
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si) echo "slovenia"; return;;
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gr) echo "greece"; return;;
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ie) echo "ireland"; return;;
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mx) echo "mexico"; return;;
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ca) echo "canada"; return;;
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br) echo "brazil"; return;;
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ar) echo "argentina"; return;;
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cl) echo "chile"; return;;
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za) echo "southafrica"; return;;
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esac
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x=$(printf '%s' "$x" | sed -E 's/[[:space:]]+//g')
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echo "$x"
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}
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# fetch IPs from publicdnsserver page
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fetch_country_ips() {
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local slug="$1"
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local url="https://publicdnsserver.com/${slug}/"
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local html
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html=$(curl -sL --max-time 15 "$url" || true)
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[ -z "$html" ] && { echo ""; return 0; }
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printf '%s' "$html" | extract_ips
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}
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# metadata (ip-api) with 1h cache
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get_meta_json() {
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local ip="$1"
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local cache="$META_CACHE_DIR/$ip.json"
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local epoch mtime age
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if [ -s "$cache" ]; then
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epoch=$(date +%s)
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if mtime=$(stat -c %Y "$cache" 2>/dev/null); then
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age=$((epoch - mtime))
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if [ "$age" -lt 3600 ]; then
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cat "$cache"; return 0
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fi
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fi
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fi
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local resp
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resp=$(curl -s --max-time 5 "http://ip-api.com/json/$ip?fields=status,message,country,city,as,asname,org,isp,query")
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if [ -n "$resp" ]; then
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printf '%s' "$resp" >"$cache" 2>/dev/null || true
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printf '%s' "$resp"
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else
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printf '{"status":"fail","country":"","city":"","as":"","asname":"","org":"","isp":"","query":"%s"}' "$ip"
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fi
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sleep "$SLEEP_META"
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}
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# poor-man's json getter (no jq)
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json_get() {
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echo "$1" | sed -n "s/.*\"$2\":\"\([^\"]*\)\".*/\1/p"
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}
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# parse ping output (returns: loss,min,avg,max,mdev)
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parse_ping() {
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local out; out=$(cat)
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local loss min avg max mdev rtt
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loss=$(printf '%s\n' "$out" | LC_ALL=C grep -Eo '[0-9]+(\.[0-9]+)?% packet loss' | sed -E 's/%.*//')
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[ -z "$loss" ] && loss="100.0"
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rtt=$(printf '%s\n' "$out" | LC_ALL=C grep -E 'min/avg/max' | tail -n1 | awk -F'=' '{print $2}' | awk '{print $1}')
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if [ -n "$rtt" ]; then
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IFS=/ read -r min avg max mdev <<<"$rtt"
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else
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min="N/A"; avg="N/A"; max="N/A"; mdev="N/A"
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fi
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printf '%s,%s,%s,%s,%s\n' "$loss" "$min" "$avg" "$max" "$mdev"
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}
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# main
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read -rp "请输入英文国家名（如 Japan / United States / South Korea；或 ISO 两字母，如 JP）： " USER_REGION || USER_REGION=""
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SLUG=$(normalize_country_to_slug "${USER_REGION:-}")
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[ -z "$SLUG" ] && SLUG="japan"
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MAP_IPS_RAW=$(fetch_country_ips "$SLUG")
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declare -a TARGETS TMP_LIST RESULTS
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declare -A seen
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while IFS= read -r ip; do
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[ -z "$ip" ] && continue
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if [[ "$ip" == *:* ]]; then
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TARGETS+=("$ip")
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else
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if is_public_ipv4 "$ip"; then
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TARGETS+=("$ip")
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fi
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fi
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done < <(printf '%s\n' "$MAP_IPS_RAW" | awk 'NF{if(!seen[$0]++){print}}')
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for ip in "${TARGETS[@]}"; do
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if [ -z "${seen[$ip]+x}" ]; then
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TMP_LIST+=("$ip"); seen["$ip"]=1
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fi
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[ "${#TMP_LIST[@]}" -ge "$TOPN" ] && break
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done
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TARGETS=("${TMP_LIST[@]}")
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for must in 1.1.1.1 8.8.8.8; do
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if [ -z "${seen[$must]+x}" ]; then
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TARGETS+=("$must"); seen["$must"]=1
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fi
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done
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N=${#TARGETS[@]}
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printf "地区: %s（slug: %s）| 目标数: %d | 每个目标 ping 次数: %d\n" "${USER_REGION:-N/A}" "$SLUG" "$N" "$COUNT"
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printf "将测试的目标：%s\n" "$(printf '%s ' "${TARGETS[@]}")"
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echo "开始测试 ......"
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if [ "$N" -eq 0 ]; then
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echo "未找到可用目标。"
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exit 0
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fi
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idx=0
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for ip in "${TARGETS[@]}"; do
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idx=$((idx+1))
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pct=$(( idx * 100 / (N==0 ? 1 : N) ))
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printf "进度: [%d/%d | %3d%%] #%d 正在测试: %s\r" "$idx" "$N" "$pct" "$idx" "$ip"
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if [[ "$ip" == *:* ]]; then
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out=$(LC_ALL=C $PING6_BIN -n -c "$COUNT" -i 0.2 -w $((COUNT+4)) "$ip" 2>&1 || true)
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else
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out=$(LC_ALL=C $PING_BIN -n -c "$COUNT" -i 0.2 -w $((COUNT+4)) "$ip" 2>&1 || true)
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fi
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stats=$(printf '%s' "$out" | parse_ping)
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IFS=, read -r loss min avg max mdev <<<"$stats"
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meta=$(get_meta_json "$ip")
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country=$(json_get "$meta" country); [ -z "$country" ] && country="N/A"
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city=$(json_get "$meta" city); [ -z "$city" ] && city="N/A"
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asfull=$(json_get "$meta" as); [ -z "$asfull" ] && asfull="N/A"
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asname=$(json_get "$meta" asname); [ -z "$asname" ] && asname="N/A"
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org=$(json_get "$meta" org)
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isp=$(json_get "$meta" isp)
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asn=$(printf '%s' "$asfull" | sed -n 's/.*\(AS[0-9][0-9]*\).*/\1/p')
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[ -z "$asn" ] && asn="N/A"
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company="$asname"
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[ -z "$company" ] || [ "$company" = "N/A" ] && company="$org"
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[ -z "$company" ] || [ "$company" = "N/A" ] && company="$isp"
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[ -z "$company" ] && company="N/A"
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printf "进度: [%d/%d | %3d%%] #%d 正在测试: %-39s | 丢包 %s%% | 最小 %sms | 平均 %sms | 最大 %sms | 抖动 %sms\n" \
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"$idx" "$N" "$pct" "$idx" "$ip" "$loss" "$min" "$avg" "$max" "$mdev"
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sortkey="$avg"; [[ "$sortkey" == "N/A" || -z "$sortkey" ]] && sortkey=999999999
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RESULTS+=("$sortkey\t$idx\t$ip\t$country/$city\t$asn\t$company\t$loss\t$min\t$avg\t$max\t$mdev")
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done
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echo
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HEADER=$'编号\t目标\t地区\tASN\t公司\t丢包\t最小(ms)\t平均(ms)\t最大(ms)\t抖动'
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BODY=$(
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printf '%b\n' "${RESULTS[@]}" \
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| LC_ALL=C sort -t$'\t' -k1,1n \
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| cut -f2- \
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| while IFS=$'\t' read -r idx0 ip region asn company loss min avg max mdev; do
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printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n' \
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"$idx0" "$ip" "$region" "$asn" "$company" \
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"$(printf '%.1f%%' "${loss:-0}")" \
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"${min:-N/A}" "${avg:-N/A}" "${max:-N/A}" "${mdev:-N/A}"
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done
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)
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if command -v column >/dev/null 2>&1; then
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{ printf '%s\n' "$HEADER"; printf '%s\n' "$BODY"; } | column -t -s $'\t'
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else
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printf "%-4s %-39s %-18s %-8s %-28s %-6s %-9s %-9s %-9s %-7s\n" \
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"编号" "目标" "地区" "ASN" "公司" "丢包" "最小(ms)" "平均(ms)" "最大(ms)" "抖动"
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printf -- "-----------------------------------------------------------------------------------------------\n"
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printf '%s\n' "$BODY" | while IFS=$'\t' read -r idx0 ip region asn company loss min avg max mdev; do
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printf "%-4s %-39s %-18s %-8s %-28s %-6s %-9s %-9s %-9s %-7s\n" \
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"$idx0" "$ip" "$region" "$asn" "$company" \
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"$loss" "$min" "$avg" "$max" "$mdev"
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done
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fi
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