Add subscription management, mixin, and tun support

clashctl

@@ -32,6 +32,7 @@ resolve_clash_home() {
 CLASH_HOME=$(resolve_clash_home)
 ENV_FILE="$CLASH_HOME/.env"
 PID_FILE="$CLASH_HOME/temp/clash.pid"
+SUBSCRIPTION_FILE="$CLASH_HOME/conf/subscriptions.list"
 
 use_systemd() {
 	command -v systemctl >/dev/null 2>&1
@@ -58,30 +59,157 @@ Commands:
   status                Show Clash service status
   update                Refresh subscription config
   set-url <url>          Update CLASH_URL in .env
+  sub add <name> <url> [headers]   Add subscription entry
+  sub del <name>                   Delete subscription entry
+  sub use <name>                   Activate subscription entry
+  sub update [name]                Update subscription config by entry
+  sub list                         List subscriptions
+  sub log                          Show subscription update logs
 
 Environment:
   CLASH_HOME             Override Clash installation directory
 USAGE
 }
 
+set_env_var() {
+	local key="$1"
+	local value="${2:-}"
+	if [ ! -f "$ENV_FILE" ]; then
+		echo "[ERROR] 未找到 .env 文件: $ENV_FILE" >&2
+		exit 1
+	fi
+	local escaped
+	escaped=$(printf "%s" "$value" | sed "s/'/'\"'\"'/g")
+	if grep -q "^export ${key}=" "$ENV_FILE"; then
+		sed -i "s@^export ${key}=.*@export ${key}='${escaped}'@" "$ENV_FILE"
+	else
+		echo "export ${key}='${escaped}'" >> "$ENV_FILE"
+	fi
+}
+
 set_url() {
 	local url="$1"
 	if [ -z "$url" ]; then
 		echo "[ERROR] 请提供订阅地址" >&2
 		exit 1
 	fi
-	if [ ! -f "$ENV_FILE" ]; then
-		echo "[ERROR] 未找到 .env 文件: $ENV_FILE" >&2
+	set_env_var "CLASH_URL" "$url"
+	set_env_var "CLASH_SUBSCRIPTION" ""
+	echo "[OK] 已更新 CLASH_URL"
+}
+
+ensure_subscription_file() {
+	mkdir -p "$(dirname "$SUBSCRIPTION_FILE")"
+	if [ ! -f "$SUBSCRIPTION_FILE" ]; then
+		touch "$SUBSCRIPTION_FILE"
+	fi
+}
+
+subscription_lookup() {
+	local name="$1"
+	awk -F'|' -v target="$name" '$1 == target {print; exit}' "$SUBSCRIPTION_FILE"
+}
+
+subscription_add() {
+	local name="$1"
+	local url="$2"
+	local headers="${3:-}"
+	if [ -z "$name" ] || [ -z "$url" ]; then
+		echo "[ERROR] 用法: clashctl sub add <name> <url> [headers]" >&2
 		exit 1
 	fi
-	local escaped
-	escaped=$(printf "%s" "$url" | sed "s/'/'\"'\"'/g")
-	if grep -q '^export CLASH_URL=' "$ENV_FILE"; then
-		sed -i "s@^export CLASH_URL=.*@export CLASH_URL='${escaped}'@" "$ENV_FILE"
-	else
-		echo "export CLASH_URL='${escaped}'" >> "$ENV_FILE"
+	ensure_subscription_file
+	if subscription_lookup "$name" >/dev/null; then
+		echo "[ERROR] 订阅已存在: $name" >&2
+		exit 1
 	fi
-	echo "[OK] 已更新 CLASH_URL"
+	printf "%s|%s|%s|-\n" "$name" "$url" "$headers" >> "$SUBSCRIPTION_FILE"
+	echo "[OK] 已添加订阅: $name"
+}
+
+subscription_del() {
+	local name="$1"
+	if [ -z "$name" ]; then
+		echo "[ERROR] 用法: clashctl sub del <name>" >&2
+		exit 1
+	fi
+	ensure_subscription_file
+	if ! subscription_lookup "$name" >/dev/null; then
+		echo "[ERROR] 未找到订阅: $name" >&2
+		exit 1
+	fi
+	awk -F'|' -v target="$name" 'BEGIN{OFS=FS} $1 != target {print}' "$SUBSCRIPTION_FILE" > "${SUBSCRIPTION_FILE}.tmp"
+	mv "${SUBSCRIPTION_FILE}.tmp" "$SUBSCRIPTION_FILE"
+	echo "[OK] 已删除订阅: $name"
+}
+
+subscription_use() {
+	local name="$1"
+	if [ -z "$name" ]; then
+		echo "[ERROR] 用法: clashctl sub use <name>" >&2
+		exit 1
+	fi
+	ensure_subscription_file
+	local line
+	line=$(subscription_lookup "$name")
+	if [ -z "$line" ]; then
+		echo "[ERROR] 未找到订阅: $name" >&2
+		exit 1
+	fi
+	local url headers
+	url=$(echo "$line" | awk -F'|' '{print $2}')
+	headers=$(echo "$line" | awk -F'|' '{print $3}')
+	set_env_var "CLASH_URL" "$url"
+	set_env_var "CLASH_HEADERS" "$headers"
+	set_env_var "CLASH_SUBSCRIPTION" "$name"
+	echo "[OK] 已切换订阅: $name"
+}
+
+subscription_touch() {
+	local name="$1"
+	local timestamp
+	timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+	awk -F'|' -v target="$name" -v ts="$timestamp" 'BEGIN{OFS=FS} {if ($1==target) {$4=ts} print}' "$SUBSCRIPTION_FILE" > "${SUBSCRIPTION_FILE}.tmp"
+	mv "${SUBSCRIPTION_FILE}.tmp" "$SUBSCRIPTION_FILE"
+}
+
+subscription_update() {
+	local name="${1:-}"
+	if [ -z "$name" ]; then
+		name=$(awk -F= '/^export CLASH_SUBSCRIPTION=/{print $2}' "$ENV_FILE" | tr -d "'" | tr -d '"')
+	fi
+	if [ -z "$name" ]; then
+		echo "[ERROR] 未指定订阅名称，且 CLASH_SUBSCRIPTION 未设置" >&2
+		exit 1
+	fi
+	subscription_use "$name"
+	run_script update.sh
+	subscription_touch "$name"
+	echo "[OK] 订阅已更新: $name"
+}
+
+subscription_list() {
+	ensure_subscription_file
+	local active
+	active=$(awk -F= '/^export CLASH_SUBSCRIPTION=/{print $2}' "$ENV_FILE" | tr -d "'" | tr -d '"')
+	printf "%-20s %-6s %s\n" "NAME" "ACTIVE" "URL"
+	while IFS='|' read -r name url headers updated; do
+		[ -z "$name" ] && continue
+		if [ "$name" = "$active" ]; then
+			printf "%-20s %-6s %s\n" "$name" "yes" "$url"
+		else
+			printf "%-20s %-6s %s\n" "$name" "no" "$url"
+		fi
+	done < "$SUBSCRIPTION_FILE"
+}
+
+subscription_log() {
+	ensure_subscription_file
+	printf "%-20s %s\n" "NAME" "LAST_UPDATE"
+	while IFS='|' read -r name url headers updated; do
+		[ -z "$name" ] && continue
+		printf "%-20s %s\n" "$name" "${updated:--}"
+	done < "$SUBSCRIPTION_FILE"
 }
 
 status_fallback() {
@@ -135,6 +263,34 @@ case "$command" in
 	set-url)
 		set_url "${2:-}"
 		;;
+	sub)
+		subcommand="${2:-}"
+		case "$subcommand" in
+			add)
+				subscription_add "${3:-}" "${4:-}" "${5:-}"
+				;;
+			del|delete|rm|remove)
+				subscription_del "${3:-}"
+				;;
+			use)
+				subscription_use "${3:-}"
+				;;
+			update)
+				subscription_update "${3:-}"
+				;;
+			list|ls)
+				subscription_list
+				;;
+			log)
+				subscription_log
+				;;
+			*)
+				echo "[ERROR] 未知订阅命令: $subcommand" >&2
+				print_usage
+				exit 1
+				;;
+		esac
+		;;
 	-h|--help|help|'')
 		print_usage
 		;;