update 2026-05-25 00:55:59

luci-app-passwall/root/usr/share/passwall/clash_subconverter.lua

@@ -509,3 +509,46 @@ function parseClashNode(raw, remark)
 
 	return #links > 0 and table.concat(links, "\n") or ""
 end
+
+function parse_clash_sub_info(headers)
+	local userinfo = headers:match("[Ss]ubscription%-userinfo:%s*([^\r\n]+)")
+	if not userinfo then return nil end
+
+	local upload = tonumber(userinfo:match("upload=(%d+)")) or 0
+	local download = tonumber(userinfo:match("download=(%d+)")) or 0
+	local total = tonumber(userinfo:match("total=(%d+)")) or 0
+	local expire = tonumber(userinfo:match("expire=(%d+)"))
+	local remain = total - (upload + download)
+	if remain < 0 then remain = 0 end
+
+	local function format_size(bytes)
+		local units = { "B", "KB", "MB", "GB", "TB", "PB" }
+		local i = 1
+		while bytes >= 1024 and i < #units do
+			bytes = bytes / 1024
+			i = i + 1
+		end
+		if bytes >= 100 then
+			return string.format("%.0f%s", bytes, units[i])
+		elseif bytes >= 10 then
+			return string.format("%.1f%s", bytes, units[i])
+		else
+			return string.format("%.2f%s", bytes, units[i])
+		end
+	end
+
+	local rem_traffic = format_size(remain)
+
+	local expired_date
+	if expire and expire > 0 then
+		local t = os.date("*t", expire)
+		expired_date = string.format("%d-%d-%d", t.year, t.month, t.day)
+	else
+		expired_date = "长期有效"
+	end
+
+	return {
+		rem_traffic = rem_traffic,
+		expired_date = expired_date
+	}
+end