60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
// Mgmt
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// Copyright (C) 2013-2017+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package resources
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import (
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"bytes"
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"encoding/base64"
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"encoding/gob"
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"fmt"
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errwrap "github.com/pkg/errors"
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)
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// ResToB64 encodes a resource to a base64 encoded string (after serialization).
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func ResToB64(res Res) (string, error) {
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b := bytes.Buffer{}
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e := gob.NewEncoder(&b)
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err := e.Encode(&res) // pass with &
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if err != nil {
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return "", errwrap.Wrapf(err, "gob failed to encode")
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}
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return base64.StdEncoding.EncodeToString(b.Bytes()), nil
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}
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// B64ToRes decodes a resource from a base64 encoded string (after deserialization).
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func B64ToRes(str string) (Res, error) {
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var output interface{}
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bb, err := base64.StdEncoding.DecodeString(str)
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if err != nil {
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return nil, errwrap.Wrapf(err, "base64 failed to decode")
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}
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b := bytes.NewBuffer(bb)
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d := gob.NewDecoder(b)
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err = d.Decode(&output) // pass with &
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if err != nil {
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return nil, errwrap.Wrapf(err, "gob failed to decode")
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}
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res, ok := output.(Res)
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if !ok {
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return nil, fmt.Errorf("Output %v is not a Res", res)
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}
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return res, nil
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}
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