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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package trans
import (
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
"time"
"github.com/mitchellh/mapstructure"
transmodel "github.com/superseriousbusiness/gotosocial/internal/trans/model"
)
func newDecoder(target interface{}) (*mapstructure.Decoder, error) {
decoderConfig := &mapstructure.DecoderConfig{
DecodeHook: mapstructure.StringToTimeHookFunc(time.RFC3339), // this is needed to decode time.Time entries serialized as string
Result: target,
}
return mapstructure.NewDecoder(decoderConfig)
}
func (i *importer) accountDecode(e transmodel.Entry) (*transmodel.Account, error) {
a := &transmodel.Account{}
if err := i.simpleDecode(e, a); err != nil {
return nil, err
}
// extract public key
publicKeyBlock, _ := pem.Decode([]byte(a.PublicKeyString))
if publicKeyBlock == nil {
return nil, errors.New("accountDecode: error decoding account public key")
}
publicKey, err := x509.ParsePKCS1PublicKey(publicKeyBlock.Bytes)
if err != nil {
return nil, fmt.Errorf("accountDecode: error parsing account public key: %s", err)
}
a.PublicKey = publicKey
if a.Domain == "" {
// extract private key (local account)
privateKeyBlock, _ := pem.Decode([]byte(a.PrivateKeyString))
if privateKeyBlock == nil {
return nil, errors.New("accountDecode: error decoding account private key")
}
privateKey, err := x509.ParsePKCS1PrivateKey(privateKeyBlock.Bytes)
if err != nil {
return nil, fmt.Errorf("accountDecode: error parsing account private key: %s", err)
}
a.PrivateKey = privateKey
}
return a, nil
}
func (i *importer) blockDecode(e transmodel.Entry) (*transmodel.Block, error) {
b := &transmodel.Block{}
if err := i.simpleDecode(e, b); err != nil {
return nil, err
}
return b, nil
}
func (i *importer) domainBlockDecode(e transmodel.Entry) (*transmodel.DomainBlock, error) {
b := &transmodel.DomainBlock{}
if err := i.simpleDecode(e, b); err != nil {
return nil, err
}
return b, nil
}
func (i *importer) followDecode(e transmodel.Entry) (*transmodel.Follow, error) {
f := &transmodel.Follow{}
if err := i.simpleDecode(e, f); err != nil {
return nil, err
}
return f, nil
}
func (i *importer) followRequestDecode(e transmodel.Entry) (*transmodel.FollowRequest, error) {
f := &transmodel.FollowRequest{}
if err := i.simpleDecode(e, f); err != nil {
return nil, err
}
return f, nil
}
func (i *importer) instanceDecode(e transmodel.Entry) (*transmodel.Instance, error) {
inst := &transmodel.Instance{}
if err := i.simpleDecode(e, inst); err != nil {
return nil, err
}
return inst, nil
}
func (i *importer) userDecode(e transmodel.Entry) (*transmodel.User, error) {
u := &transmodel.User{}
if err := i.simpleDecode(e, u); err != nil {
return nil, err
}
return u, nil
}
func (i *importer) simpleDecode(entry transmodel.Entry, target interface{}) error {
decoder, err := newDecoder(target)
if err != nil {
return fmt.Errorf("simpleDecode: error creating decoder: %s", err)
}
if err := decoder.Decode(&entry); err != nil {
return fmt.Errorf("simpleDecode: error decoding: %s", err)
}
return nil
}
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