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优化WAF中前缀和后缀相关操作符性能

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This commit is contained in:
GoEdgeLab
2023-12-07 12:05:08 +08:00
parent f55a49bb0d
commit 4f96c72212
2 changed files with 78 additions and 33 deletions
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18
internal/waf/rule.go
View File

@@ -510,13 +510,27 @@ func (this *Rule) Test(value any) bool {
}
case RuleOperatorPrefix:
if this.IsCaseInsensitive {
return strings.HasPrefix(strings.ToLower(this.stringifyValue(value)), strings.ToLower(this.Value))
var s = this.stringifyValue(value)
var sl = len(s)
var vl = len(this.Value)
if sl < vl {
return false
}
s = s[:vl]
return strings.HasPrefix(strings.ToLower(s), strings.ToLower(this.Value))
} else {
return strings.HasPrefix(this.stringifyValue(value), this.Value)
}
case RuleOperatorSuffix:
if this.IsCaseInsensitive {
return strings.HasSuffix(strings.ToLower(this.stringifyValue(value)), strings.ToLower(this.Value))
var s = this.stringifyValue(value)
var sl = len(s)
var vl = len(this.Value)
if sl < vl {
return false
}
s = s[sl-vl:]
return strings.HasSuffix(strings.ToLower(s), strings.ToLower(this.Value))
} else {
return strings.HasSuffix(this.stringifyValue(value), this.Value)
}

93
internal/waf/rule_test.go
View File

@@ -49,10 +49,10 @@ func TestRule_Init_Composite(t *testing.T) {
}
func TestRule_Test(t *testing.T) {
a := assert.NewAssertion(t)
var a = assert.NewAssertion(t)
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorGt
rule.Value = "123"
err := rule.Init()
@@ -66,7 +66,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorGte
rule.Value = "123"
err := rule.Init()
@@ -79,7 +79,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorLt
rule.Value = "123"
err := rule.Init()
@@ -92,7 +92,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorLte
rule.Value = "123"
err := rule.Init()
@@ -105,7 +105,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorEq
rule.Value = "123"
err := rule.Init()
@@ -118,7 +118,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNeq
rule.Value = "123"
err := rule.Init()
@@ -131,7 +131,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorEqString
rule.Value = "123"
err := rule.Init()
@@ -144,7 +144,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorEqString
rule.Value = "abc"
err := rule.Init()
@@ -156,7 +156,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorEqString
rule.IsCaseInsensitive = true
rule.Value = "abc"
@@ -169,7 +169,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNeqString
rule.Value = "abc"
err := rule.Init()
@@ -182,7 +182,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNeqString
rule.IsCaseInsensitive = true
rule.Value = "abc"
@@ -194,7 +194,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorMatch
rule.Value = "^\\d+"
err := rule.Init()
@@ -230,7 +230,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorMatch
rule.Value = "abc"
rule.IsCaseInsensitive = true
@@ -242,7 +242,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorMatch
rule.Value = "^\\d+"
err := rule.Init()
@@ -254,7 +254,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNotMatch
rule.Value = "\\d+"
err := rule.Init()
@@ -266,7 +266,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNotMatch
rule.Value = "abc"
rule.IsCaseInsensitive = true
@@ -278,7 +278,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNotMatch
rule.Value = "^\\d+"
err := rule.Init()
@@ -303,7 +303,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorMatch
rule.Value = "^(?i)[a-z]+$"
err := rule.Init()
@@ -314,7 +314,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorContains
rule.Value = "Hello"
err := rule.Init()
@@ -325,7 +325,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorContains
rule.Value = "hello"
rule.IsCaseInsensitive = true
@@ -337,7 +337,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorContains
rule.Value = "Hello"
err := rule.Init()
@@ -354,7 +354,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNotContains
rule.Value = "Hello"
err := rule.Init()
@@ -366,7 +366,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorNotContains
rule.Value = "hello"
rule.IsCaseInsensitive = true
@@ -379,7 +379,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorPrefix
rule.Value = "Hello"
err := rule.Init()
@@ -387,11 +387,12 @@ func TestRule_Test(t *testing.T) {
t.Fatal(err)
}
a.IsTrue(rule.Test("Hello, World"))
a.IsFalse(rule.Test("hello"))
a.IsFalse(rule.Test("World, Hello"))
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorPrefix
rule.Value = "hello"
rule.IsCaseInsensitive = true
@@ -400,11 +401,13 @@ func TestRule_Test(t *testing.T) {
t.Fatal(err)
}
a.IsTrue(rule.Test("Hello, World"))
a.IsTrue(rule.Test("hello, World"))
a.IsFalse(rule.Test("hell"))
a.IsFalse(rule.Test("World, Hello"))
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorSuffix
rule.Value = "Hello"
err := rule.Init()
@@ -416,7 +419,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorSuffix
rule.Value = "hello"
rule.IsCaseInsensitive = true
@@ -425,11 +428,13 @@ func TestRule_Test(t *testing.T) {
t.Fatal(err)
}
a.IsFalse(rule.Test("Hello, World"))
a.IsTrue(rule.Test("Hello"))
a.IsFalse(rule.Test("llo"))
a.IsTrue(rule.Test("World, Hello"))
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorHasKey
rule.Value = "Hello"
err := rule.Init()
@@ -446,7 +451,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorHasKey
rule.Value = "hello"
rule.IsCaseInsensitive = true
@@ -464,7 +469,7 @@ func TestRule_Test(t *testing.T) {
}
{
rule := NewRule()
var rule = NewRule()
rule.Operator = RuleOperatorHasKey
rule.Value = "3"
err := rule.Init()
@@ -477,6 +482,32 @@ func TestRule_Test(t *testing.T) {
}))
a.IsTrue(rule.Test([]int{1, 2, 3, 4}))
}
{
var rule = NewRule()
rule.Operator = RuleOperatorContainsAnyWord
rule.Value = "How\nare\nyou"
rule.IsCaseInsensitive = true
err := rule.Init()
if err != nil {
t.Fatal(err)
}
a.IsTrue(rule.Test("how"))
a.IsTrue(rule.Test("How doing"))
a.IsFalse(rule.Test("doing"))
}
{
var rule = NewRule()
rule.Operator = RuleOperatorContainsAllWords
rule.Value = "How\nare\nyou"
rule.IsCaseInsensitive = true
err := rule.Init()
if err != nil {
t.Fatal(err)
}
a.IsTrue(rule.Test("how are you"))
a.IsTrue(rule.Test("How are you doing"))
a.IsFalse(rule.Test("How are dare"))
}
}
func TestRule_MatchStar(t *testing.T) {