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This commit is contained in:
Adnan Hajdarevic 2021-04-03 18:01:13 +02:00
parent e329b6d9ff
commit 568c711625
138 changed files with 22876 additions and 90497 deletions
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41
internal/hook/hook.go
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@ -26,6 +26,7 @@ import (
"text/template"
"time"
"github.com/antonmedv/expr"
"github.com/ghodss/yaml"
)
@ -316,6 +317,29 @@ func CheckIPWhitelist(remoteAddr, ipRange string) (bool, error) {
return false, nil
}
type ExpressionEnv struct {
Headers, Query, Payload map[string]interface{}
}
func CheckExpression(request *Request, expression string) (bool, error) {
program, err := expr.Compile(expression, expr.Env(ExpressionEnv{}))
if err != nil {
return false, err
}
out, err := expr.Run(program, ExpressionEnv{
Headers: request.Headers,
Query: request.Query,
Payload: request.Payload,
})
if err != nil {
return false, err
}
return out == true, nil
}
// ReplaceParameter replaces parameter value with the passed value in the passed map
// (please note you should pass pointer to the map, because we're modifying it)
// based on the passed string
@ -886,18 +910,20 @@ func (r NotRule) Evaluate(req *Request) (bool, error) {
// MatchRule will evaluate to true based on the type
type MatchRule struct {
Type string `json:"type,omitempty"`
Regex string `json:"regex,omitempty"`
Secret string `json:"secret,omitempty"`
Value string `json:"value,omitempty"`
Parameter Argument `json:"parameter,omitempty"`
IPRange string `json:"ip-range,omitempty"`
Type string `json:"type,omitempty"`
Regex string `json:"regex,omitempty"`
Expression string `json:"expression,omitempty"`
Secret string `json:"secret,omitempty"`
Value string `json:"value,omitempty"`
Parameter Argument `json:"parameter,omitempty"`
IPRange string `json:"ip-range,omitempty"`
}
// Constants for the MatchRule type
const (
MatchValue string = "value"
MatchRegex string = "regex"
MatchExpression string = "expression"
MatchHMACSHA1 string = "payload-hmac-sha1"
MatchHMACSHA256 string = "payload-hmac-sha256"
MatchHMACSHA512 string = "payload-hmac-sha512"
@ -916,6 +942,9 @@ func (r MatchRule) Evaluate(req *Request) (bool, error) {
if r.Type == ScalrSignature {
return CheckScalrSignature(req, r.Secret, true)
}
if r.Type == MatchExpression {
return CheckExpression(req, r.Expression)
}
arg, err := r.Parameter.Get(req)
if err == nil {