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server_errors.go
54 lines (48 loc) · 1.44 KB
/
server_errors.go
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// Copyright © 2021 The Things Network Foundation, The Things Industries B.V.
//
// 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 interop
import (
"encoding/json"
"net/http"
ttnerrors "go.thethings.network/lorawan-stack/v3/pkg/errors"
)
func writeError(w http.ResponseWriter, r *http.Request, header MessageHeader, err error) {
answerHeader, headerErr := header.AnswerHeader()
if headerErr != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
code, desc := ResultOther, err.Error()
for errDef, protocolCode := range errorResultCodes {
if ttnerrors.Resemble(errDef, err) {
if c, ok := protocolCode[header.ProtocolVersion]; ok {
code = c
if cause := ttnerrors.Cause(err); cause != nil {
desc = cause.Error()
} else {
desc = ""
}
}
break
}
}
msg := ErrorMessage{
MessageHeader: answerHeader,
Result: Result{
ResultCode: code,
Description: desc,
},
}
json.NewEncoder(w).Encode(msg)
}