86 lines
2.1 KiB
Go
86 lines
2.1 KiB
Go
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// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package uplink
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import (
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"github.com/btcsuite/btcutil/base58"
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"github.com/gogo/protobuf/proto"
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"github.com/zeebo/errs"
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"storj.io/storj/pkg/pb"
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)
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// Scope is a serializable type that represents all of the credentials you need
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// to open a project and some amount of buckets
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type Scope struct {
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SatelliteAddr string
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APIKey APIKey
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EncryptionAccess *EncryptionAccess
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}
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// ParseScope unmarshals a base58 encoded scope protobuf and decodes
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// the fields into the Scope convenience type. It will return an error if the
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// protobuf is malformed or field validation fails.
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func ParseScope(scopeb58 string) (*Scope, error) {
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data, version, err := base58.CheckDecode(scopeb58)
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if err != nil || version != 0 {
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return nil, errs.New("invalid scope format")
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}
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p := new(pb.Scope)
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if err := proto.Unmarshal(data, p); err != nil {
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return nil, errs.New("unable to unmarshal scope: %v", err)
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}
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if len(p.SatelliteAddr) == 0 {
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return nil, errs.New("scope missing satellite URL")
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}
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apiKey, err := parseRawAPIKey(p.ApiKey)
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if err != nil {
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return nil, errs.New("scope has malformed api key: %v", err)
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}
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access, err := parseEncryptionAccessFromProto(p.EncryptionAccess)
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if err != nil {
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return nil, errs.New("scope has malformed encryption access: %v", err)
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}
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return &Scope{
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SatelliteAddr: p.SatelliteAddr,
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APIKey: apiKey,
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EncryptionAccess: access,
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}, nil
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}
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// Serialize serializes a Scope to a base58-encoded string
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func (s *Scope) Serialize() (string, error) {
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switch {
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case len(s.SatelliteAddr) == 0:
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return "", errs.New("scope missing satellite URL")
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case s.APIKey.IsZero():
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return "", errs.New("scope missing api key")
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case s.EncryptionAccess == nil:
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return "", errs.New("scope missing encryption access")
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}
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access, err := s.EncryptionAccess.toProto()
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if err != nil {
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return "", err
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}
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data, err := proto.Marshal(&pb.Scope{
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SatelliteAddr: s.SatelliteAddr,
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ApiKey: s.APIKey.serializeRaw(),
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EncryptionAccess: access,
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})
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if err != nil {
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return "", errs.New("unable to marshal scope: %v", err)
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}
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return base58.CheckEncode(data, 0), nil
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}
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