77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// Package read implements request object readers.
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package read
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import (
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"encoding/json"
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"errors"
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"io"
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"net/http"
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"google.golang.org/protobuf/encoding/protojson"
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"google.golang.org/protobuf/proto"
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"github.com/smallstep/certificates/errs"
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)
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// JSON reads JSON from the request body and stores it in the value
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// pointed by v.
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func JSON(r io.Reader, v interface{}) error {
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if err := json.NewDecoder(r).Decode(v); err != nil {
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return errs.BadRequestErr(err, "error decoding json")
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}
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return nil
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}
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// ProtoJSON reads JSON from the request body and stores it in the value
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// pointed to by v.
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func ProtoJSON(r io.Reader, m proto.Message) error {
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data, err := io.ReadAll(r)
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if err != nil {
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return errs.BadRequestErr(err, "error reading request body")
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}
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if err := protojson.Unmarshal(data, m); err != nil {
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if errors.Is(err, proto.Error) {
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return newBadProtoJSONError(err)
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}
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}
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return err
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}
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// BadProtoJSONError is an error type that is used when a proto
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// message cannot be unmarshaled. Usually this is caused by an error
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// in the request body.
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type BadProtoJSONError struct {
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err error
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Type string `json:"type"`
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Detail string `json:"detail"`
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Message string `json:"message"`
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}
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// newBadProtoJSONError returns a new instance of BadProtoJSONError
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// This error type is always caused by an error in the request body.
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func newBadProtoJSONError(err error) *BadProtoJSONError {
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return &BadProtoJSONError{
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err: err,
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Type: "badRequest",
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Detail: "bad request",
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Message: err.Error(),
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}
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}
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// Error implements the error interface
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func (e *BadProtoJSONError) Error() string {
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return e.err.Error()
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}
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// Render implements render.RenderableError for BadProtoError
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func (e *BadProtoJSONError) Render(w http.ResponseWriter) {
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errData, err := json.Marshal(e)
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if err != nil {
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panic(err)
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusBadRequest)
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w.Write(errData)
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}
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