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// +build !confonly
package router
import (
"v2ray.com/core/common/net"
"v2ray.com/core/features/outbound"
"v2ray.com/core/features/routing"
)
// CIDRList is an alias of []*CIDR to provide sort.Interface.
type CIDRList []*CIDR
// Len implements sort.Interface.
func (l *CIDRList) Len() int {
return len(*l)
}
// Less implements sort.Interface.
func (l *CIDRList) Less(i int, j int) bool {
ci := (*l)[i]
cj := (*l)[j]
if len(ci.Ip) < len(cj.Ip) {
return true
}
if len(ci.Ip) > len(cj.Ip) {
return false
}
for k := 0; k < len(ci.Ip); k++ {
if ci.Ip[k] < cj.Ip[k] {
return true
}
if ci.Ip[k] > cj.Ip[k] {
return false
}
}
return ci.Prefix < cj.Prefix
}
// Swap implements sort.Interface.
func (l *CIDRList) Swap(i int, j int) {
(*l)[i], (*l)[j] = (*l)[j], (*l)[i]
}
type Rule struct {
Tag string
Balancer *Balancer
Condition Condition
}
func (r *Rule) GetTag() (string, error) {
if r.Balancer != nil {
return r.Balancer.PickOutbound()
}
return r.Tag, nil
}
// Apply checks rule matching of current routing context.
func (r *Rule) Apply(ctx routing.Context) bool {
return r.Condition.Apply(ctx)
}
func (rr *RoutingRule) BuildCondition() (Condition, error) {
conds := NewConditionChan()
if len(rr.Domain) > 0 {
matcher, err := NewDomainMatcher(rr.Domain)
if err != nil {
return nil, newError("failed to build domain condition").Base(err)
}
conds.Add(matcher)
}
if len(rr.UserEmail) > 0 {
conds.Add(NewUserMatcher(rr.UserEmail))
}
if len(rr.InboundTag) > 0 {
conds.Add(NewInboundTagMatcher(rr.InboundTag))
}
if rr.PortList != nil {
conds.Add(NewPortMatcher(rr.PortList, false))
} else if rr.PortRange != nil {
conds.Add(NewPortMatcher(&net.PortList{Range: []*net.PortRange{rr.PortRange}}, false))
}
if rr.SourcePortList != nil {
conds.Add(NewPortMatcher(rr.SourcePortList, true))
}
if len(rr.Networks) > 0 {
conds.Add(NewNetworkMatcher(rr.Networks))
} else if rr.NetworkList != nil {
conds.Add(NewNetworkMatcher(rr.NetworkList.Network))
}
if len(rr.Geoip) > 0 {
cond, err := NewMultiGeoIPMatcher(rr.Geoip, false)
if err != nil {
return nil, err
}
conds.Add(cond)
} else if len(rr.Cidr) > 0 {
cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.Cidr}}, false)
if err != nil {
return nil, err
}
conds.Add(cond)
}
if len(rr.SourceGeoip) > 0 {
cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, true)
if err != nil {
return nil, err
}
conds.Add(cond)
} else if len(rr.SourceCidr) > 0 {
cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.SourceCidr}}, true)
if err != nil {
return nil, err
}
conds.Add(cond)
}
if len(rr.Protocol) > 0 {
conds.Add(NewProtocolMatcher(rr.Protocol))
}
if len(rr.Attributes) > 0 {
cond, err := NewAttributeMatcher(rr.Attributes)
if err != nil {
return nil, err
}
conds.Add(cond)
}
if conds.Len() == 0 {
return nil, newError("this rule has no effective fields").AtWarning()
}
return conds, nil
}
func (br *BalancingRule) Build(ohm outbound.Manager) (*Balancer, error) {
return &Balancer{
selectors: br.OutboundSelector,
strategy: &RandomStrategy{},
ohm: ohm,
}, nil
}
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