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// -
// ========================LICENSE_START=================================
// Copyright (C) 2024: Deutsche Telecom
//
// 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.
// ========================LICENSE_END===================================
// Package bundleserver provides functionalities for serving and building OPA bundles.
// This package includes functions to handle HTTP requests for bundles and
// to build OPA bundles using specified commands
package bundleserver
import (
"net/http"
"os"
"os/exec"
"policy-opa-pdp/consts"
"policy-opa-pdp/pkg/log"
"time"
)
// handles HTTP requests to serve the OPA bundle
func GetBundle(res http.ResponseWriter, req *http.Request) {
log.Debugf("PDP received a Bundle request.")
file, err := os.Open(consts.BundleTarGzFile)
if err != nil {
log.Warnf("Bundle server could not serve the request ::: %s", err)
res.WriteHeader(http.StatusInternalServerError)
return
}
defer file.Close()
res.Header().Set("Content-Type", "application/octet-stream")
res.Header().Set("Content-Disposition", "attachment; filename="+consts.BundleTarGz)
res.Header().Set("Content-Transfer-Encoding", "binary")
res.Header().Set("Expires", "0")
http.ServeContent(res, req, "Bundle Request Response", time.Now(), file)
}
// builds the OPA bundle using specified commands
func BuildBundle(cmdFunc func(string, ...string) *exec.Cmd) error {
cmd := cmdFunc(consts.Opa, consts.BuildBundle, consts.V1_COMPATIBLE, consts.Policies, consts.Data, consts.Output, consts.BundleTarGzFile)
log.Debugf("Before calling combinedoutput")
output, err := cmd.CombinedOutput()
if err != nil {
log.Warnf("Error output : %s", string(output))
log.Warnf("Failed to build Bundle: %v", err)
return err
}
log.Debug("Bundle Built Sucessfully....")
return nil
}
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