forked from TrueCloudLab/neoneo-go
44 lines
961 B
Go
44 lines
961 B
Go
package oracle
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import (
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"bytes"
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"errors"
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"unicode/utf8"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/services/oracle/jsonpath"
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json "github.com/virtuald/go-ordered-json"
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)
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func filter(value []byte, path string) ([]byte, error) {
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if !utf8.Valid(value) {
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return nil, errors.New("not an UTF-8")
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}
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buf := bytes.NewBuffer(value)
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d := json.NewDecoder(buf)
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d.UseOrderedObject()
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var v interface{}
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if err := d.Decode(&v); err != nil {
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return nil, err
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}
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result, ok := jsonpath.Get(path, v)
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if !ok {
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return nil, errors.New("invalid filter")
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}
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return json.Marshal(result)
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}
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func filterRequest(result []byte, req *state.OracleRequest) (transaction.OracleResponseCode, []byte) {
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if req.Filter != nil {
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var err error
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result, err = filter(result, *req.Filter)
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if err != nil {
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return transaction.Error, nil
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}
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}
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return transaction.Success, result
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}
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