WAF增加包含任一字符串、包含所有字符串操作符

internal/waf/rule.go

@@ -49,8 +49,7 @@ type Rule struct {
 	ipValue net.IP
 
 	ipRangeListValue *values.IPRangeList
-	numberListValue  *values.NumberList
+	stringValues     []string
-	stringListValue  *values.StringList
 
 	floatValue float64
 	reg        *re.Regexp
@@ -75,6 +74,21 @@ func (this *Rule) Init() error {
 		this.floatValue = types.Float64(this.Value)
 	case RuleOperatorNeq:
 		this.floatValue = types.Float64(this.Value)
+	case RuleOperatorContainsAny, RuleOperatorContainsAll:
+		this.stringValues = []string{}
+		if len(this.Value) > 0 {
+			var lines = strings.Split(this.Value, "\n")
+			for _, line := range lines {
+				line = strings.TrimSpace(line)
+				if len(line) > 0 {
+					if this.IsCaseInsensitive {
+						this.stringValues = append(this.stringValues, strings.ToLower(line))
+					} else {
+						this.stringValues = append(this.stringValues, line)
+					}
+				}
+			}
+		}
 	case RuleOperatorMatch:
 		v := this.Value
 		if this.IsCaseInsensitive && !strings.HasPrefix(v, "(?i)") {
@@ -452,6 +466,33 @@ func (this *Rule) Test(value interface{}) bool {
 		} else {
 			return strings.HasSuffix(types.String(value), this.Value)
 		}
+	case RuleOperatorContainsAny:
+		var stringValue = types.String(value)
+		if this.IsCaseInsensitive {
+			stringValue = strings.ToLower(stringValue)
+		}
+		if len(stringValue) > 0 && len(this.stringValues) > 0 {
+			for _, v := range this.stringValues {
+				if strings.Contains(stringValue, v) {
+					return true
+				}
+			}
+		}
+		return false
+	case RuleOperatorContainsAll:
+		var stringValue = types.String(value)
+		if this.IsCaseInsensitive {
+			stringValue = strings.ToLower(stringValue)
+		}
+		if len(stringValue) > 0 && len(this.stringValues) > 0 {
+			for _, v := range this.stringValues {
+				if !strings.Contains(stringValue, v) {
+					return false
+				}
+			}
+			return true
+		}
+		return false
 	case RuleOperatorContainsBinary:
 		data, _ := base64.StdEncoding.DecodeString(types.String(this.Value))
 		if this.IsCaseInsensitive {

internal/waf/rule_operator.go

@@ -18,6 +18,8 @@ const (
 	RuleOperatorNotContains  RuleOperator = "not contains"
 	RuleOperatorPrefix       RuleOperator = "prefix"
 	RuleOperatorSuffix       RuleOperator = "suffix"
+	RuleOperatorContainsAny  RuleOperator = "containsAny"
+	RuleOperatorContainsAll  RuleOperator = "containsAll"
 	RuleOperatorHasKey       RuleOperator = "has key" // has key in slice or map
 	RuleOperatorVersionGt    RuleOperator = "version gt"
 	RuleOperatorVersionLt    RuleOperator = "version lt"

internal/waf/values/ip_list.go

@@ -3,5 +3,5 @@
 package values
 
 func ParseIPList(v string) *StringList {
-	return ParseStringList(v)
+	return ParseStringList(v, false)
 }

internal/waf/values/string_list.go

@@ -9,16 +9,18 @@ import (
 
 type StringList struct {
 	ValueMap        map[string]zero.Zero
+	CaseInsensitive bool
 }
 
-func NewStringList() *StringList {
+func NewStringList(caseInsensitive bool) *StringList {
 	return &StringList{
 		ValueMap:        map[string]zero.Zero{},
+		CaseInsensitive: caseInsensitive,
 	}
 }
 
-func ParseStringList(v string) *StringList {
+func ParseStringList(v string, caseInsensitive bool) *StringList {
-	var list = NewStringList()
+	var list = NewStringList(caseInsensitive)
 	if len(v) == 0 {
 		return list
 	}
@@ -34,6 +36,9 @@ func ParseStringList(v string) *StringList {
 		for _, value := range values {
 			value = strings.TrimSpace(value)
 			if len(value) > 0 {
+				if caseInsensitive {
+					value = strings.ToLower(value)
+				}
 				list.ValueMap[value] = zero.Zero{}
 			}
 		}
@@ -42,6 +47,9 @@ func ParseStringList(v string) *StringList {
 }
 
 func (this *StringList) Contains(f string) bool {
+	if this.CaseInsensitive {
+		f = strings.ToLower(f)
+	}
 	_, ok := this.ValueMap[f]
 	return ok
 }

internal/waf/values/string_list_test.go

@@ -12,7 +12,7 @@ func TestParseStringList(t *testing.T) {
 	var a = assert.NewAssertion(t)
 
 	{
-		var list = values.ParseStringList("")
+		var list = values.ParseStringList("", false)
 		a.IsFalse(list.Contains("hello"))
 	}
 
@@ -22,9 +22,22 @@ func TestParseStringList(t *testing.T) {
 world
 hi
 
-people`)
+people`, false)
 		a.IsTrue(list.Contains("hello"))
 		a.IsFalse(list.Contains("hello1"))
+		a.IsFalse(list.Contains("Hello"))
 		a.IsTrue(list.Contains("hi"))
 	}
+	{
+		var list = values.ParseStringList(`Hello
+
+world
+hi
+
+people`, true)
+		a.IsTrue(list.Contains("hello"))
+		a.IsTrue(list.Contains("Hello"))
+		a.IsTrue(list.Contains("HELLO"))
+		a.IsFalse(list.Contains("How"))
+	}
 }