/// <summary>
/// 初始化 <see cref="IPInfo"/> 实例
/// </summary>
/// <param name="rule">Block规则</param>
public IPInfo(IPRule rule)
{
if (rule == null)
throw new ArgumentNullException("rule");
this.rule = rule;
}
/// <summary>
/// 解析规则字符串并返回 <see cref="IPRule"/> 实例
/// </summary>
/// <param name="value">规则字符串</param>
/// <returns></returns>
public static IPRule Parse(string value)
{
var vals = value.Split(',');
if (vals.Length != 3)
throw new ArgumentException("The value is not a valid format.", "value");
var rule = new IPRule();
if (string.IsNullOrWhiteSpace(vals[1])) //Mask默认为32，表示单个IP
{
rule.IP = uint.Parse(vals[0]);
rule.MaskLevel = 32;
rule.Rate = int.Parse(vals[2]);
}
else //表示IP段
{
int level = int.Parse(vals[1]);
rule.IP = uint.Parse(vals[0]);
rule.MaskLevel = level;
rule.Rate = int.Parse(vals[2]);
}
if (rule.Rate == -1)
rule.BlockType = BlockType.Block;
else if (rule.Rate == 0)
rule.BlockType = BlockType.Validate;
else if (rule.Rate >= 1 && rule.Rate <= 9)
rule.BlockType = BlockType.RateLimit;
else
rule.BlockType = BlockType.Unknown;
return rule;
}