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fix: npe when parse rule

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This commit is contained in:
Skyxim
2022-04-16 00:21:08 +08:00
parent 36a719e2f8
commit 45fe6e996b
6 changed files with 86 additions and 42 deletions
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31
rule/logic/common.go
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@ -2,20 +2,19 @@ package logic
import (
"fmt"
"io"
"net/http"
"os"
"regexp"
"strings"
"github.com/Dreamacro/clash/common/collections"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/log"
RC "github.com/Dreamacro/clash/rule/common"
"github.com/Dreamacro/clash/rule/provider"
"io"
"net/http"
"os"
"regexp"
"strings"
)
func parseRuleByPayload(payload string, skip bool) ([]C.Rule, error) {
func parseRuleByPayload(payload string) ([]C.Rule, error) {
regex, err := regexp.Compile("\\(.*\\)")
if err != nil {
return nil, err
@ -28,7 +27,7 @@ func parseRuleByPayload(payload string, skip bool) ([]C.Rule, error) {
}
rules := make([]C.Rule, 0, len(subAllRanges))
subRanges := findSubRuleRange(payload, subAllRanges, skip)
subRanges := findSubRuleRange(payload, subAllRanges)
for _, subRange := range subRanges {
subPayload := payload[subRange.start+1 : subRange.end]
@ -53,7 +52,7 @@ func containRange(r Range, preStart, preEnd int) bool {
func payloadToRule(subPayload string) (C.Rule, error) {
splitStr := strings.SplitN(subPayload, ",", 2)
if len(splitStr) < 2 {
return nil, fmt.Errorf("The logic rule contain a rule of error format")
return nil, fmt.Errorf("[%s] format is error", subPayload)
}
tp := splitStr[0]
@ -91,9 +90,9 @@ func parseRule(tp, payload string, params []string) (C.Rule, error) {
parsed, parseErr = RC.NewGEOIP(payload, "", noResolve)
case "IP-CIDR", "IP-CIDR6":
noResolve := RC.HasNoResolve(params)
parsed, parseErr = RC.NewIPCIDR(payload, "", nil, RC.WithIPCIDRNoResolve(noResolve))
parsed, parseErr = RC.NewIPCIDR(payload, "", RC.WithIPCIDRNoResolve(noResolve))
case "SRC-IP-CIDR":
parsed, parseErr = RC.NewIPCIDR(payload, "", nil, RC.WithIPCIDRSourceIP(true), RC.WithIPCIDRNoResolve(true))
parsed, parseErr = RC.NewIPCIDR(payload, "", RC.WithIPCIDRSourceIP(true), RC.WithIPCIDRNoResolve(true))
case "SRC-PORT":
parsed, parseErr = RC.NewPort(payload, "", true)
case "DST-PORT":
@ -113,7 +112,7 @@ func parseRule(tp, payload string, params []string) (C.Rule, error) {
case "NETWORK":
parsed, parseErr = RC.NewNetworkType(payload, "")
default:
parseErr = fmt.Errorf("unsupported rule type %s", tp)
parsed, parseErr = nil, fmt.Errorf("unsupported rule type %s", tp)
}
if parseErr != nil {
@ -151,6 +150,10 @@ func format(payload string) ([]Range, error) {
num++
stack.Push(sr)
} else if c == ')' {
if stack.Len() == 0 {
return nil, fmt.Errorf("missing '('")
}
sr := stack.Pop().(Range)
sr.end = i
subRanges = append(subRanges, sr)
@ -169,11 +172,11 @@ func format(payload string) ([]Range, error) {
return sortResult, nil
}
func findSubRuleRange(payload string, ruleRanges []Range, skip bool) []Range {
func findSubRuleRange(payload string, ruleRanges []Range) []Range {
payloadLen := len(payload)
subRuleRange := make([]Range, 0)
for _, rr := range ruleRanges {
if rr.start == 0 && rr.end == payloadLen-1 && skip {
if rr.start == 0 && rr.end == payloadLen-1 {
// 最大范围跳过
continue
}