1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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 typeutils
import (
"context"
"net/url"
"github.com/go-fed/activity/streams/vocab"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/cache"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
const (
asPublicURI = "https://www.w3.org/ns/activitystreams#Public"
)
// TypeConverter is an interface for the common action of converting between apimodule (frontend, serializable) models,
// internal gts models used in the database, and activitypub models used in federation.
//
// It requires access to the database because many of the conversions require pulling out database entries and counting them etc.
// That said, it *absolutely should not* manipulate database entries in any way, only examine them.
type TypeConverter interface {
/*
INTERNAL (gts) MODEL TO FRONTEND (mastodon) MODEL
*/
// AccountToMastoSensitive takes a db model account as a param, and returns a populated mastotype account, or an error
// if something goes wrong. The returned account should be ready to serialize on an API level, and may have sensitive fields,
// so serve it only to an authorized user who should have permission to see it.
AccountToMastoSensitive(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
// AccountToMastoPublic takes a db model account as a param, and returns a populated mastotype account, or an error
// if something goes wrong. The returned account should be ready to serialize on an API level, and may NOT have sensitive fields.
// In other words, this is the public record that the server has of an account.
AccountToMastoPublic(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
// AccountToMastoBlocked takes a db model account as a param, and returns a mastotype account, or an error if
// something goes wrong. The returned account will be a bare minimum representation of the account. This function should be used
// when someone wants to view an account they've blocked.
AccountToMastoBlocked(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
// AppToMastoSensitive takes a db model application as a param, and returns a populated mastotype application, or an error
// if something goes wrong. The returned application should be ready to serialize on an API level, and may have sensitive fields
// (such as client id and client secret), so serve it only to an authorized user who should have permission to see it.
AppToMastoSensitive(ctx context.Context, application *gtsmodel.Application) (*model.Application, error)
// AppToMastoPublic takes a db model application as a param, and returns a populated mastotype application, or an error
// if something goes wrong. The returned application should be ready to serialize on an API level, and has sensitive
// fields sanitized so that it can be served to non-authorized accounts without revealing any private information.
AppToMastoPublic(ctx context.Context, application *gtsmodel.Application) (*model.Application, error)
// AttachmentToMasto converts a gts model media attacahment into its mastodon representation for serialization on the API.
AttachmentToMasto(ctx context.Context, attachment *gtsmodel.MediaAttachment) (model.Attachment, error)
// MentionToMasto converts a gts model mention into its mastodon (frontend) representation for serialization on the API.
MentionToMasto(ctx context.Context, m *gtsmodel.Mention) (model.Mention, error)
// EmojiToMasto converts a gts model emoji into its mastodon (frontend) representation for serialization on the API.
EmojiToMasto(ctx context.Context, e *gtsmodel.Emoji) (model.Emoji, error)
// TagToMasto converts a gts model tag into its mastodon (frontend) representation for serialization on the API.
TagToMasto(ctx context.Context, t *gtsmodel.Tag) (model.Tag, error)
// StatusToMasto converts a gts model status into its mastodon (frontend) representation for serialization on the API.
//
// Requesting account can be nil.
StatusToMasto(ctx context.Context, s *gtsmodel.Status, requestingAccount *gtsmodel.Account) (*model.Status, error)
// VisToMasto converts a gts visibility into its mastodon equivalent
VisToMasto(ctx context.Context, m gtsmodel.Visibility) model.Visibility
// InstanceToMasto converts a gts instance into its mastodon equivalent for serving at /api/v1/instance
InstanceToMasto(ctx context.Context, i *gtsmodel.Instance) (*model.Instance, error)
// RelationshipToMasto converts a gts relationship into its mastodon equivalent for serving in various places
RelationshipToMasto(ctx context.Context, r *gtsmodel.Relationship) (*model.Relationship, error)
// NotificationToMasto converts a gts notification into a mastodon notification
NotificationToMasto(ctx context.Context, n *gtsmodel.Notification) (*model.Notification, error)
// DomainBlockTomasto converts a gts model domin block into a mastodon domain block, for serving at /api/v1/admin/domain_blocks
DomainBlockToMasto(ctx context.Context, b *gtsmodel.DomainBlock, export bool) (*model.DomainBlock, error)
/*
FRONTEND (mastodon) MODEL TO INTERNAL (gts) MODEL
*/
// MastoVisToVis converts a mastodon visibility into its gts equivalent.
MastoVisToVis(m model.Visibility) gtsmodel.Visibility
/*
ACTIVITYSTREAMS MODEL TO INTERNAL (gts) MODEL
*/
// ASPersonToAccount converts a remote account/person/application representation into a gts model account.
//
// If update is false, and the account is already known in the database, then the existing account entry will be returned.
// If update is true, then even if the account is already known, all fields in the accountable will be parsed and a new *gtsmodel.Account
// will be generated. This is useful when one needs to force refresh of an account, eg., during an Update of a Profile.
ASRepresentationToAccount(ctx context.Context, accountable ap.Accountable, update bool) (*gtsmodel.Account, error)
// ASStatus converts a remote activitystreams 'status' representation into a gts model status.
ASStatusToStatus(ctx context.Context, statusable ap.Statusable) (*gtsmodel.Status, error)
// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow request.
ASFollowToFollowRequest(ctx context.Context, followable ap.Followable) (*gtsmodel.FollowRequest, error)
// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow.
ASFollowToFollow(ctx context.Context, followable ap.Followable) (*gtsmodel.Follow, error)
// ASLikeToFave converts a remote activitystreams 'like' representation into a gts model status fave.
ASLikeToFave(ctx context.Context, likeable ap.Likeable) (*gtsmodel.StatusFave, error)
// ASBlockToBlock converts a remote activity streams 'block' representation into a gts model block.
ASBlockToBlock(ctx context.Context, blockable ap.Blockable) (*gtsmodel.Block, error)
// ASAnnounceToStatus converts an activitystreams 'announce' into a status.
//
// The returned bool indicates whether this status is new (true) or not new (false).
//
// In other words, if the status is already in the database with the ID set on the announceable, then that will be returned,
// the returned bool will be false, and no further processing is necessary. If the returned bool is true, indicating
// that this is a new announce, then further processing will be necessary, because the returned status will be bareboned and
// require further dereferencing.
//
// This is useful when multiple users on an instance might receive the same boost, and we only want to process the boost once.
//
// NOTE -- this is different from one status being boosted multiple times! In this case, new boosts should indeed be created.
ASAnnounceToStatus(ctx context.Context, announceable ap.Announceable) (status *gtsmodel.Status, new bool, err error)
/*
INTERNAL (gts) MODEL TO ACTIVITYSTREAMS MODEL
*/
// AccountToAS converts a gts model account into an activity streams person, suitable for federation
AccountToAS(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
// AccountToASMinimal converts a gts model account into an activity streams person, suitable for federation.
//
// The returned account will just have the Type, Username, PublicKey, and ID properties set. This is
// suitable for serving to requesters to whom we want to give as little information as possible because
// we don't trust them (yet).
AccountToASMinimal(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
// StatusToAS converts a gts model status into an activity streams note, suitable for federation
StatusToAS(ctx context.Context, s *gtsmodel.Status) (vocab.ActivityStreamsNote, error)
// FollowToASFollow converts a gts model Follow into an activity streams Follow, suitable for federation
FollowToAS(ctx context.Context, f *gtsmodel.Follow, originAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (vocab.ActivityStreamsFollow, error)
// MentionToAS converts a gts model mention into an activity streams Mention, suitable for federation
MentionToAS(ctx context.Context, m *gtsmodel.Mention) (vocab.ActivityStreamsMention, error)
// AttachmentToAS converts a gts model media attachment into an activity streams Attachment, suitable for federation
AttachmentToAS(ctx context.Context, a *gtsmodel.MediaAttachment) (vocab.ActivityStreamsDocument, error)
// FaveToAS converts a gts model status fave into an activityStreams LIKE, suitable for federation.
FaveToAS(ctx context.Context, f *gtsmodel.StatusFave) (vocab.ActivityStreamsLike, error)
// BoostToAS converts a gts model boost into an activityStreams ANNOUNCE, suitable for federation
BoostToAS(ctx context.Context, boostWrapperStatus *gtsmodel.Status, boostingAccount *gtsmodel.Account, boostedAccount *gtsmodel.Account) (vocab.ActivityStreamsAnnounce, error)
// BlockToAS converts a gts model block into an activityStreams BLOCK, suitable for federation.
BlockToAS(ctx context.Context, block *gtsmodel.Block) (vocab.ActivityStreamsBlock, error)
// StatusToASRepliesCollection converts a gts model status into an activityStreams REPLIES collection.
StatusToASRepliesCollection(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool) (vocab.ActivityStreamsCollection, error)
// StatusURIsToASRepliesPage returns a collection page with appropriate next/part of pagination.
StatusURIsToASRepliesPage(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool, minID string, replies map[string]*url.URL) (vocab.ActivityStreamsCollectionPage, error)
/*
INTERNAL (gts) MODEL TO INTERNAL MODEL
*/
// FollowRequestToFollow just converts a follow request into a follow, that's it! No bells and whistles.
FollowRequestToFollow(ctx context.Context, f *gtsmodel.FollowRequest) *gtsmodel.Follow
// StatusToBoost wraps the given status into a boosting status.
StatusToBoost(ctx context.Context, s *gtsmodel.Status, boostingAccount *gtsmodel.Account) (*gtsmodel.Status, error)
/*
WRAPPER CONVENIENCE FUNCTIONS
*/
// WrapPersonInUpdate
WrapPersonInUpdate(person vocab.ActivityStreamsPerson, originAccount *gtsmodel.Account) (vocab.ActivityStreamsUpdate, error)
}
type converter struct {
config *config.Config
db db.DB
log *logrus.Logger
frontendCache cache.Cache
asCache cache.Cache
}
// NewConverter returns a new Converter
func NewConverter(config *config.Config, db db.DB, log *logrus.Logger) TypeConverter {
return &converter{
config: config,
db: db,
log: log,
frontendCache: cache.New(),
asCache: cache.New(),
}
}
|
