2016-01-17 15:20:49 +00:00
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// +build json
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package rules
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import (
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"encoding/json"
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"errors"
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"strings"
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router "github.com/v2ray/v2ray-core/app/router"
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"github.com/v2ray/v2ray-core/common/log"
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v2net "github.com/v2ray/v2ray-core/common/net"
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"github.com/v2ray/v2ray-core/common/serial"
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)
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type JsonRule struct {
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Type string `json:"type"`
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OutboundTag string `json:"outboundTag"`
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}
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func parseFieldRule(msg json.RawMessage) (*Rule, error) {
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type RawFieldRule struct {
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JsonRule
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Domain *serial.StringLiteralList `json:"domain"`
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IP *serial.StringLiteralList `json:"ip"`
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Port *v2net.PortRange `json:"port"`
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Network *v2net.NetworkList `json:"network"`
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}
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rawFieldRule := new(RawFieldRule)
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err := json.Unmarshal(msg, rawFieldRule)
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if err != nil {
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return nil, err
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}
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conds := NewConditionChan()
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if rawFieldRule.Domain != nil && rawFieldRule.Domain.Len() > 0 {
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2016-01-24 13:40:46 +00:00
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anyCond := NewAnyCondition()
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2016-01-17 15:20:49 +00:00
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for _, rawDomain := range *(rawFieldRule.Domain) {
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var matcher Condition
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if strings.HasPrefix(rawDomain.String(), "regexp:") {
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rawMatcher, err := NewRegexpDomainMatcher(rawDomain.String()[7:])
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if err != nil {
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return nil, err
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}
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matcher = rawMatcher
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} else {
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matcher = NewPlainDomainMatcher(rawDomain.String())
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}
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2016-01-24 13:40:46 +00:00
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anyCond.Add(matcher)
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2016-01-17 15:20:49 +00:00
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}
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2016-01-24 13:40:46 +00:00
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conds.Add(anyCond)
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2016-01-17 15:20:49 +00:00
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}
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if rawFieldRule.IP != nil && rawFieldRule.IP.Len() > 0 {
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2016-01-24 13:40:46 +00:00
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anyCond := NewAnyCondition()
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2016-01-17 15:20:49 +00:00
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for _, ipStr := range *(rawFieldRule.IP) {
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cidrMatcher, err := NewCIDRMatcher(ipStr.String())
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if err != nil {
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2016-01-18 11:24:33 +00:00
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log.Error("Router: Invalid IP range in router rule: ", err)
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2016-01-17 15:20:49 +00:00
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return nil, err
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}
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2016-01-24 13:40:46 +00:00
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anyCond.Add(cidrMatcher)
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2016-01-17 15:20:49 +00:00
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}
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2016-01-24 13:40:46 +00:00
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conds.Add(anyCond)
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2016-01-17 15:20:49 +00:00
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}
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if rawFieldRule.Port != nil {
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conds.Add(NewPortMatcher(*rawFieldRule.Port))
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}
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if rawFieldRule.Network != nil {
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conds.Add(NewNetworkMatcher(rawFieldRule.Network))
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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 &Rule{
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Tag: rawFieldRule.OutboundTag,
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Condition: conds,
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}, nil
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}
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2016-01-24 13:40:46 +00:00
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func ParseRule(msg json.RawMessage) *Rule {
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2016-01-17 15:20:49 +00:00
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rawRule := new(JsonRule)
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err := json.Unmarshal(msg, rawRule)
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if err != nil {
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2016-01-18 11:24:33 +00:00
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log.Error("Router: Invalid router rule: ", err)
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2016-01-17 15:20:49 +00:00
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return nil
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}
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if rawRule.Type == "field" {
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fieldrule, err := parseFieldRule(msg)
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if err != nil {
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2016-01-18 11:24:33 +00:00
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log.Error("Invalid field rule: ", err)
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2016-01-17 15:20:49 +00:00
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return nil
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}
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return fieldrule
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}
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if rawRule.Type == "chinaip" {
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chinaiprule, err := parseChinaIPRule(msg)
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if err != nil {
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2016-01-18 11:24:33 +00:00
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log.Error("Router: Invalid chinaip rule: ", err)
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2016-01-17 15:20:49 +00:00
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return nil
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}
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return chinaiprule
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}
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if rawRule.Type == "chinasites" {
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chinasitesrule, err := parseChinaSitesRule(msg)
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if err != nil {
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2016-01-18 11:24:33 +00:00
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log.Error("Invalid chinasites rule: ", err)
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2016-01-17 15:20:49 +00:00
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return nil
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}
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return chinasitesrule
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}
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2016-01-18 11:24:33 +00:00
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log.Error("Unknown router rule type: ", rawRule.Type)
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2016-01-17 15:20:49 +00:00
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return nil
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}
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func init() {
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router.RegisterRouterConfig("rules", func(data []byte) (interface{}, error) {
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type JsonConfig struct {
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2016-02-01 22:21:54 +00:00
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RuleList []json.RawMessage `json:"rules"`
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ResolveDomain bool `json:"resolveDomain"`
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2016-01-17 15:20:49 +00:00
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}
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jsonConfig := new(JsonConfig)
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if err := json.Unmarshal(data, jsonConfig); err != nil {
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return nil, err
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}
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2016-02-01 22:21:54 +00:00
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config := &RouterRuleConfig{
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Rules: make([]*Rule, len(jsonConfig.RuleList)),
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ResolveDomain: jsonConfig.ResolveDomain,
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}
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for idx, rawRule := range jsonConfig.RuleList {
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2016-01-24 13:40:46 +00:00
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rule := ParseRule(rawRule)
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2016-02-01 22:21:54 +00:00
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config.Rules[idx] = rule
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2016-01-17 15:20:49 +00:00
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}
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return config, nil
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})
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}
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