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server_cors.go
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/
server_cors.go
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// Copyright © 2023 Kaleido, Inc.
//
// SPDX-License-Identifier: Apache-2.0
//
// 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 httpserver
import (
"context"
"net/http"
"github.com/hyperledger/firefly-common/pkg/config"
"github.com/hyperledger/firefly-common/pkg/log"
"github.com/rs/cors"
)
func WrapCorsIfEnabled(ctx context.Context, conf config.Section, chain http.Handler) http.Handler {
if !conf.GetBool(CorsEnabled) {
return chain
}
corsOptions := cors.Options{
AllowedOrigins: conf.GetStringSlice(CorsAllowedOrigins),
AllowedMethods: conf.GetStringSlice(CorsAllowedMethods),
AllowedHeaders: conf.GetStringSlice(CorsAllowedHeaders),
AllowCredentials: conf.GetBool(CorsAllowCredentials),
MaxAge: conf.GetInt(CorsMaxAge),
Debug: conf.GetBool(CorsDebug),
}
log.L(ctx).Debugf("CORS origins=%v methods=%v headers=%v creds=%t maxAge=%d",
corsOptions.AllowedOrigins,
corsOptions.AllowedMethods,
corsOptions.AllowedHeaders,
corsOptions.AllowCredentials,
corsOptions.MaxAge,
)
c := cors.New(corsOptions)
return c.Handler(chain)
}