mirror of
https://github.com/wnlen/clash-for-linux.git
synced 2026-02-04 10:11:28 +08:00
103 lines
2.1 KiB
Bash
103 lines
2.1 KiB
Bash
#!/bin/bash
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PORT_CHECK_WARNED=${PORT_CHECK_WARNED:-0}
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is_port_in_use() {
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local port="$1"
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if command -v ss >/dev/null 2>&1; then
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ss -lnt | awk '{print $4}' | grep -E "(:|\.)${port}$" >/dev/null 2>&1
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return $?
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fi
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if command -v netstat >/dev/null 2>&1; then
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netstat -lnt | awk '{print $4}' | grep -E "(:|\.)${port}$" >/dev/null 2>&1
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return $?
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fi
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if command -v lsof >/dev/null 2>&1; then
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lsof -iTCP -sTCP:LISTEN -P -n | awk '{print $9}' | grep -E "(:|\.)${port}$" >/dev/null 2>&1
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return $?
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fi
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if [ "$PORT_CHECK_WARNED" -eq 0 ]; then
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echo -e "\033[33m[WARN] 未找到端口检测工具，端口冲突检测可能不准确\033[0m" >&2
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PORT_CHECK_WARNED=1
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fi
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return 1
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}
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find_available_port() {
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local start_port=${1:-20000}
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local end_port=${2:-65000}
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local port
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if command -v shuf >/dev/null 2>&1; then
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for _ in {1..50}; do
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port=$(shuf -i "${start_port}-${end_port}" -n 1)
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if ! is_port_in_use "$port"; then
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echo "$port"
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return 0
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fi
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done
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fi
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for port in $(seq "$start_port" "$end_port"); do
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if ! is_port_in_use "$port"; then
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echo "$port"
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return 0
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fi
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done
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return 1
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}
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resolve_port_value() {
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local name="$1"
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local value="$2"
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local resolved
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if [ -z "$value" ] || [ "$value" = "auto" ]; then
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resolved=$(find_available_port)
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if [ -z "$resolved" ]; then
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return 1
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fi
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echo -e "\033[33m[WARN] ${name} 端口已自动分配为 ${resolved}\033[0m" >&2
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echo "$resolved"
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return 0
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fi
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if [[ "$value" =~ ^[0-9]+$ ]]; then
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if is_port_in_use "$value"; then
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resolved=$(find_available_port)
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if [ -n "$resolved" ]; then
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echo -e "\033[33m[WARN] ${name} 端口 ${value} 已被占用，已自动切换为 ${resolved}\033[0m" >&2
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echo "$resolved"
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return 0
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fi
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fi
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fi
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echo "$value"
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}
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resolve_host_port() {
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local name="$1"
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local raw="$2"
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local default_host="$3"
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local host
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local port
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if [ "$raw" = "auto" ] || [ -z "$raw" ]; then
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host="$default_host"
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port="auto"
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else
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if [[ "$raw" == *:* ]]; then
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host="${raw%:*}"
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port="${raw##*:}"
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else
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host="$default_host"
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port="$raw"
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fi
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fi
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port=$(resolve_port_value "$name" "$port") || return 1
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echo "${host}:${port}"
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}
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