public Selector(string str)
{
string[] parts = str.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
Source = new HostPredicate(parts[0]);
Destination = new HostPredicate(parts[1]);
Type = parts[2] == "*" ? TypePredicate.All : (TypePredicate)Enum.Parse(typeof(TypePredicate), parts[2], true);
}
private bool IsSubDomainCore(HostPredicate other)
{
if (other.HostType == UriHostNameType.Basic)
{
return(false);
}
if (IsIP)
{
return(Value == other.Value);
}
if (IsDomain)
{
//可能一个主机谓词是com，另一个是google.com，则后者被会判断为前者的子域名。
//如果要严谨一点，需要调用DomainParser，这个调用很慢。
var longSubDomainSegments = Value.Split('.');
var shortSubDomainSegments = other.Value.Split('.');
for (int i = longSubDomainSegments.Length - 1, j = shortSubDomainSegments.Length - 1; i >= 0 && j >= 0; i--, j--)
{
if (longSubDomainSegments[i] != shortSubDomainSegments[j])
{
return(false);
}
}
return(true);
}
throw new NotSupportedException($"不能对{Value}调用{nameof(IsSubDomain)}()。");
}
/// <summary>
/// 返回null表示部分包含。*和1st-party是这种情况。
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool?Covers(HostPredicate other)
{
if (Value == "1st-party" || other.Value == "1st-party")
{
return(null);
}
return(Value == "*" || other.Value.EndsWith(Value));
}
public UMatrixRule(string line)
{
string[] parts = line.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
var source = new HostPredicate(parts[0]);
var destination = new HostPredicate(parts[1]);
var type = parts[2] == "*" ? uMatrixCleaner.TypePredicate.All : (TypePredicate)Enum.Parse(typeof(TypePredicate), parts[2], true);
Selector = new Selector(source, destination, type);
IsAllow = parts[3] == "allow";
}
public UMatrixRule(HostPredicate source, HostPredicate destination, TypePredicate type, bool isAllow)
{
if (HostPredicate.N1stParty.Equals(source))
{
throw new ArgumentException("source不能为1st-party。");
}
Selector = new Selector(source, destination, type);
IsAllow = isAllow;
}
/// <summary>
/// 自己是自己的子域名
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool IsSubDomain(HostPredicate other)
{
Debug.Assert(IsDomain == false || this.IsSubDomainCore(this));
return(IsSubDomainCore(other));
}
public Selector(HostPredicate source, HostPredicate destination, TypePredicate type)
{
Source = source;
Destination = destination;
Type = type;
}
public Selector(HostPredicate source, HostPredicate destination, TypePredicate type, Selector selector) : this(source, destination, type)
{
this.originalRule = selector;
}