mirror of https://github.com/v2fly/v2ray-core.git
85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package router
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import (
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"errors"
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"net"
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v2net "v2ray.com/core/common/net"
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)
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type Rule struct {
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Tag string
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Condition Condition
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}
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func (this *Rule) Apply(dest v2net.Destination) bool {
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return this.Condition.Apply(dest)
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}
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func (this *RoutingRule) BuildCondition() (Condition, error) {
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conds := NewConditionChan()
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if len(this.Domain) > 0 {
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anyCond := NewAnyCondition()
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for _, domain := range this.Domain {
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if domain.Type == Domain_Plain {
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anyCond.Add(NewPlainDomainMatcher(domain.Value))
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} else {
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matcher, err := NewRegexpDomainMatcher(domain.Value)
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if err != nil {
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return nil, err
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}
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anyCond.Add(matcher)
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}
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}
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conds.Add(anyCond)
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}
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if len(this.Cidr) > 0 {
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ipv4Net := v2net.NewIPNet()
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ipv6Cond := NewAnyCondition()
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hasIpv6 := false
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for _, ip := range this.Cidr {
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switch len(ip.Ip) {
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case net.IPv4len:
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ipv4Net.AddIP(ip.Ip, byte(ip.Prefix))
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case net.IPv6len:
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hasIpv6 = true
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matcher, err := NewCIDRMatcher(ip.Ip, ip.Prefix)
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if err != nil {
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return nil, err
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}
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ipv6Cond.Add(matcher)
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default:
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return nil, errors.New("Router: Invalid IP length.")
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}
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}
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if !ipv4Net.IsEmpty() && hasIpv6 {
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cond := NewAnyCondition()
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cond.Add(NewIPv4Matcher(ipv4Net))
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cond.Add(ipv6Cond)
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conds.Add(cond)
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} else if !ipv4Net.IsEmpty() {
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conds.Add(NewIPv4Matcher(ipv4Net))
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} else if hasIpv6 {
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conds.Add(ipv6Cond)
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}
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}
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if this.PortRange != nil {
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conds.Add(NewPortMatcher(*this.PortRange))
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}
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if this.NetworkList != nil {
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conds.Add(NewNetworkMatcher(this.NetworkList))
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}
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if conds.Len() == 0 {
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return nil, errors.New("Router: This rule has no effective fields.")
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}
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return conds, nil
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}
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