support option pause for http-request and http-response keywords

Signed-off-by: Vincent Gramer <vgramer@haproxy.com>

Author: vgramer

config-parser/parsers/http/actions/pause.go

@@ -0,0 +1,73 @@
+/*
+Copyright 2025 HAProxy Technologies
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package actions
+
+import (
+	stderrors "errors"
+	"strings"
+
+	"github.com/haproxytech/client-native/v6/config-parser/common"
+	"github.com/haproxytech/client-native/v6/config-parser/errors"
+	"github.com/haproxytech/client-native/v6/config-parser/types"
+)
+
+type Pause struct {
+	Pause    common.Expression
+	Cond     string
+	CondTest string
+	Comment  string
+}
+
+func (f *Pause) Parse(parts []string, parserType types.ParserType, comment string) error {
+	if comment != "" {
+		f.Comment = comment
+	}
+	if len(parts) >= 3 {
+		command, condition := common.SplitRequest(parts[2:])
+		if len(command) == 0 {
+			return errors.ErrInvalidData
+		}
+		pauseExpr := common.Expression{}
+		if err := pauseExpr.Parse(command); err != nil {
+			return stderrors.New("not enough params")
+		}
+		f.Pause = pauseExpr
+		if len(condition) > 1 {
+			f.Cond = condition[0]
+			f.CondTest = strings.Join(condition[1:], " ")
+		}
+		return nil
+	}
+	return stderrors.New("not enough params")
+}
+
+func (f *Pause) String() string {
+	var result strings.Builder
+	result.WriteString("pause ")
+	result.WriteString(f.Pause.String())
+	if f.Cond != "" {
+		result.WriteString(" ")
+		result.WriteString(f.Cond)
+		result.WriteString(" ")
+		result.WriteString(f.CondTest)
+	}
+	return result.String()
+}
+
+func (f *Pause) GetComment() string {
+	return f.Comment
+}

config-parser/parsers/http/http-request.go

@@ -71,6 +71,8 @@ func (h *Requests) Parse(line string, parts []string, comment string) (string, e
 			err = h.ParseHTTPRequest(&httpActions.EarlyHint{}, parts, comment)
 		case "normalize-uri":
 			err = h.ParseHTTPRequest(&httpActions.NormalizeURI{}, parts, comment)
+		case "pause":
+			err = h.ParseHTTPRequest(&httpActions.Pause{}, parts, comment)
 		case "redirect":
 			err = h.ParseHTTPRequest(&httpActions.Redirect{}, parts, comment)
 		case "reject":

config-parser/parsers/http/http-response.go

@@ -63,6 +63,8 @@ func (h *Responses) Parse(line string, parts []string, comment string) (string,
 			err = h.ParseHTTPResponse(&httpActions.DelHeader{}, parts, comment)
 		case "deny":
 			err = h.ParseHTTPResponse(&httpActions.Deny{}, parts, comment)
+		case "pause":
+			err = h.ParseHTTPResponse(&httpActions.Pause{}, parts, comment)
 		case "redirect":
 			err = h.ParseHTTPResponse(&httpActions.Redirect{}, parts, comment)
 		case "replace-header":