mirror of https://github.com/v2ray/v2ray-core
170 lines
3.3 KiB
Go
170 lines
3.3 KiB
Go
package rules
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import (
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"net"
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"regexp"
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"strings"
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v2net "v2ray.com/core/common/net"
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)
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type Condition interface {
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Apply(dest v2net.Destination) bool
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}
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type ConditionChan []Condition
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func NewConditionChan() *ConditionChan {
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var condChan ConditionChan = make([]Condition, 0, 8)
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return &condChan
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}
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func (this *ConditionChan) Add(cond Condition) *ConditionChan {
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*this = append(*this, cond)
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return this
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}
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func (this *ConditionChan) Apply(dest v2net.Destination) bool {
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for _, cond := range *this {
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if !cond.Apply(dest) {
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return false
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}
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}
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return true
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}
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func (this *ConditionChan) Len() int {
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return len(*this)
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}
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type AnyCondition []Condition
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func NewAnyCondition() *AnyCondition {
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var anyCond AnyCondition = make([]Condition, 0, 8)
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return &anyCond
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}
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func (this *AnyCondition) Add(cond Condition) *AnyCondition {
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*this = append(*this, cond)
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return this
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}
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func (this *AnyCondition) Apply(dest v2net.Destination) bool {
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for _, cond := range *this {
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if cond.Apply(dest) {
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return true
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}
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}
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return false
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}
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func (this *AnyCondition) Len() int {
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return len(*this)
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}
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type PlainDomainMatcher struct {
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pattern string
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}
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func NewPlainDomainMatcher(pattern string) *PlainDomainMatcher {
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return &PlainDomainMatcher{
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pattern: pattern,
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}
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}
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func (this *PlainDomainMatcher) Apply(dest v2net.Destination) bool {
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if !dest.Address.Family().IsDomain() {
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return false
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}
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domain := dest.Address.Domain()
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return strings.Contains(domain, this.pattern)
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}
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type RegexpDomainMatcher struct {
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pattern *regexp.Regexp
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}
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func NewRegexpDomainMatcher(pattern string) (*RegexpDomainMatcher, error) {
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r, err := regexp.Compile(pattern)
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if err != nil {
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return nil, err
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}
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return &RegexpDomainMatcher{
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pattern: r,
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}, nil
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}
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func (this *RegexpDomainMatcher) Apply(dest v2net.Destination) bool {
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if !dest.Address.Family().IsDomain() {
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return false
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}
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domain := dest.Address.Domain()
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return this.pattern.MatchString(strings.ToLower(domain))
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}
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type CIDRMatcher struct {
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cidr *net.IPNet
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}
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func NewCIDRMatcher(ip []byte, mask uint32) (*CIDRMatcher, error) {
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cidr := &net.IPNet{
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IP: net.IP(ip),
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Mask: net.CIDRMask(int(mask), len(ip)),
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}
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return &CIDRMatcher{
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cidr: cidr,
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}, nil
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}
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func (this *CIDRMatcher) Apply(dest v2net.Destination) bool {
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if !dest.Address.Family().Either(v2net.AddressFamilyIPv4, v2net.AddressFamilyIPv6) {
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return false
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}
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return this.cidr.Contains(dest.Address.IP())
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}
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type IPv4Matcher struct {
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ipv4net *v2net.IPNet
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}
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func NewIPv4Matcher(ipnet *v2net.IPNet) *IPv4Matcher {
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return &IPv4Matcher{
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ipv4net: ipnet,
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}
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}
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func (this *IPv4Matcher) Apply(dest v2net.Destination) bool {
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if !dest.Address.Family().Either(v2net.AddressFamilyIPv4) {
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return false
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}
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return this.ipv4net.Contains(dest.Address.IP())
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}
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type PortMatcher struct {
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port v2net.PortRange
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}
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func NewPortMatcher(portRange v2net.PortRange) *PortMatcher {
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return &PortMatcher{
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port: portRange,
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}
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}
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func (this *PortMatcher) Apply(dest v2net.Destination) bool {
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return this.port.Contains(dest.Port)
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}
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type NetworkMatcher struct {
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network *v2net.NetworkList
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}
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func NewNetworkMatcher(network *v2net.NetworkList) *NetworkMatcher {
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return &NetworkMatcher{
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network: network,
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}
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}
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func (this *NetworkMatcher) Apply(dest v2net.Destination) bool {
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return this.network.HasNetwork(dest.Network)
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}
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