this repo has no description
Support unsigned label cborgen for signature validation (#612)
There's definitely got to be a better place to put this but I'm just
gonna stick it here for now.
+377
+5
gen/main.go
+5
gen/main.go
···
11
11
lexutil "github.com/bluesky-social/indigo/lex/util"
12
12
"github.com/bluesky-social/indigo/mst"
13
13
"github.com/bluesky-social/indigo/repo"
14
+
"github.com/bluesky-social/indigo/util/labels"
14
15
15
16
cbg "github.com/whyrusleeping/cbor-gen"
16
17
)
···
29
30
}
30
31
31
32
if err := cbg.WriteMapEncodersToFile("api/cbor_gen.go", "api", api.CreateOp{}); err != nil {
33
+
panic(err)
34
+
}
35
+
36
+
if err := cbg.WriteMapEncodersToFile("util/labels/cbor_gen.go", "labels", labels.UnsignedLabel{}); err != nil {
32
37
panic(err)
33
38
}
34
39
+337
util/labels/cbor_gen.go
+337
util/labels/cbor_gen.go
···
1
+
// Code generated by github.com/whyrusleeping/cbor-gen. DO NOT EDIT.
2
+
3
+
package labels
4
+
5
+
import (
6
+
"fmt"
7
+
"io"
8
+
"math"
9
+
"sort"
10
+
11
+
cid "github.com/ipfs/go-cid"
12
+
cbg "github.com/whyrusleeping/cbor-gen"
13
+
xerrors "golang.org/x/xerrors"
14
+
)
15
+
16
+
var _ = xerrors.Errorf
17
+
var _ = cid.Undef
18
+
var _ = math.E
19
+
var _ = sort.Sort
20
+
21
+
func (t *UnsignedLabel) MarshalCBOR(w io.Writer) error {
22
+
if t == nil {
23
+
_, err := w.Write(cbg.CborNull)
24
+
return err
25
+
}
26
+
27
+
cw := cbg.NewCborWriter(w)
28
+
fieldCount := 6
29
+
30
+
if t.CID == nil {
31
+
fieldCount--
32
+
}
33
+
34
+
if t.Neg == nil {
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+
fieldCount--
36
+
}
37
+
38
+
if _, err := cw.Write(cbg.CborEncodeMajorType(cbg.MajMap, uint64(fieldCount))); err != nil {
39
+
return err
40
+
}
41
+
42
+
// t.CID (string) (string)
43
+
if t.CID != nil {
44
+
45
+
if uint64(len("cid")) > cbg.MaxLength {
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+
return xerrors.Errorf("Value in field \"cid\" was too long")
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+
}
48
+
49
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("cid"))); err != nil {
50
+
return err
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+
}
52
+
if _, err := cw.WriteString(string("cid")); err != nil {
53
+
return err
54
+
}
55
+
56
+
if t.CID == nil {
57
+
if _, err := cw.Write(cbg.CborNull); err != nil {
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+
return err
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+
}
60
+
} else {
61
+
if uint64(len(*t.CID)) > cbg.MaxLength {
62
+
return xerrors.Errorf("Value in field t.CID was too long")
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+
}
64
+
65
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len(*t.CID))); err != nil {
66
+
return err
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+
}
68
+
if _, err := cw.WriteString(string(*t.CID)); err != nil {
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+
return err
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+
}
71
+
}
72
+
}
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+
74
+
// t.CTS (string) (string)
75
+
if uint64(len("cts")) > cbg.MaxLength {
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+
return xerrors.Errorf("Value in field \"cts\" was too long")
77
+
}
78
+
79
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("cts"))); err != nil {
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+
return err
81
+
}
82
+
if _, err := cw.WriteString(string("cts")); err != nil {
83
+
return err
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+
}
85
+
86
+
if uint64(len(t.CTS)) > cbg.MaxLength {
87
+
return xerrors.Errorf("Value in field t.CTS was too long")
88
+
}
89
+
90
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len(t.CTS))); err != nil {
91
+
return err
92
+
}
93
+
if _, err := cw.WriteString(string(t.CTS)); err != nil {
94
+
return err
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+
}
96
+
97
+
// t.Neg (bool) (bool)
98
+
if t.Neg != nil {
99
+
100
+
if uint64(len("neg")) > cbg.MaxLength {
101
+
return xerrors.Errorf("Value in field \"neg\" was too long")
102
+
}
103
+
104
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("neg"))); err != nil {
105
+
return err
106
+
}
107
+
if _, err := cw.WriteString(string("neg")); err != nil {
108
+
return err
109
+
}
110
+
111
+
if t.Neg == nil {
112
+
if _, err := cw.Write(cbg.CborNull); err != nil {
113
+
return err
114
+
}
115
+
} else {
116
+
if err := cbg.WriteBool(w, *t.Neg); err != nil {
117
+
return err
118
+
}
119
+
}
120
+
}
121
+
122
+
// t.Src (string) (string)
123
+
if uint64(len("src")) > cbg.MaxLength {
124
+
return xerrors.Errorf("Value in field \"src\" was too long")
125
+
}
126
+
127
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("src"))); err != nil {
128
+
return err
129
+
}
130
+
if _, err := cw.WriteString(string("src")); err != nil {
131
+
return err
132
+
}
133
+
134
+
if uint64(len(t.Src)) > cbg.MaxLength {
135
+
return xerrors.Errorf("Value in field t.Src was too long")
136
+
}
137
+
138
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len(t.Src))); err != nil {
139
+
return err
140
+
}
141
+
if _, err := cw.WriteString(string(t.Src)); err != nil {
142
+
return err
143
+
}
144
+
145
+
// t.URI (string) (string)
146
+
if uint64(len("uri")) > cbg.MaxLength {
147
+
return xerrors.Errorf("Value in field \"uri\" was too long")
148
+
}
149
+
150
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("uri"))); err != nil {
151
+
return err
152
+
}
153
+
if _, err := cw.WriteString(string("uri")); err != nil {
154
+
return err
155
+
}
156
+
157
+
if uint64(len(t.URI)) > cbg.MaxLength {
158
+
return xerrors.Errorf("Value in field t.URI was too long")
159
+
}
160
+
161
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len(t.URI))); err != nil {
162
+
return err
163
+
}
164
+
if _, err := cw.WriteString(string(t.URI)); err != nil {
165
+
return err
166
+
}
167
+
168
+
// t.Val (string) (string)
169
+
if uint64(len("val")) > cbg.MaxLength {
170
+
return xerrors.Errorf("Value in field \"val\" was too long")
171
+
}
172
+
173
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("val"))); err != nil {
174
+
return err
175
+
}
176
+
if _, err := cw.WriteString(string("val")); err != nil {
177
+
return err
178
+
}
179
+
180
+
if uint64(len(t.Val)) > cbg.MaxLength {
181
+
return xerrors.Errorf("Value in field t.Val was too long")
182
+
}
183
+
184
+
if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len(t.Val))); err != nil {
185
+
return err
186
+
}
187
+
if _, err := cw.WriteString(string(t.Val)); err != nil {
188
+
return err
189
+
}
190
+
return nil
191
+
}
192
+
193
+
func (t *UnsignedLabel) UnmarshalCBOR(r io.Reader) (err error) {
194
+
*t = UnsignedLabel{}
195
+
196
+
cr := cbg.NewCborReader(r)
197
+
198
+
maj, extra, err := cr.ReadHeader()
199
+
if err != nil {
200
+
return err
201
+
}
202
+
defer func() {
203
+
if err == io.EOF {
204
+
err = io.ErrUnexpectedEOF
205
+
}
206
+
}()
207
+
208
+
if maj != cbg.MajMap {
209
+
return fmt.Errorf("cbor input should be of type map")
210
+
}
211
+
212
+
if extra > cbg.MaxLength {
213
+
return fmt.Errorf("UnsignedLabel: map struct too large (%d)", extra)
214
+
}
215
+
216
+
var name string
217
+
n := extra
218
+
219
+
for i := uint64(0); i < n; i++ {
220
+
221
+
{
222
+
sval, err := cbg.ReadString(cr)
223
+
if err != nil {
224
+
return err
225
+
}
226
+
227
+
name = string(sval)
228
+
}
229
+
230
+
switch name {
231
+
// t.CID (string) (string)
232
+
case "cid":
233
+
234
+
{
235
+
b, err := cr.ReadByte()
236
+
if err != nil {
237
+
return err
238
+
}
239
+
if b != cbg.CborNull[0] {
240
+
if err := cr.UnreadByte(); err != nil {
241
+
return err
242
+
}
243
+
244
+
sval, err := cbg.ReadString(cr)
245
+
if err != nil {
246
+
return err
247
+
}
248
+
249
+
t.CID = (*string)(&sval)
250
+
}
251
+
}
252
+
// t.CTS (string) (string)
253
+
case "cts":
254
+
255
+
{
256
+
sval, err := cbg.ReadString(cr)
257
+
if err != nil {
258
+
return err
259
+
}
260
+
261
+
t.CTS = string(sval)
262
+
}
263
+
// t.Neg (bool) (bool)
264
+
case "neg":
265
+
266
+
{
267
+
b, err := cr.ReadByte()
268
+
if err != nil {
269
+
return err
270
+
}
271
+
if b != cbg.CborNull[0] {
272
+
if err := cr.UnreadByte(); err != nil {
273
+
return err
274
+
}
275
+
276
+
maj, extra, err = cr.ReadHeader()
277
+
if err != nil {
278
+
return err
279
+
}
280
+
if maj != cbg.MajOther {
281
+
return fmt.Errorf("booleans must be major type 7")
282
+
}
283
+
284
+
var val bool
285
+
switch extra {
286
+
case 20:
287
+
val = false
288
+
case 21:
289
+
val = true
290
+
default:
291
+
return fmt.Errorf("booleans are either major type 7, value 20 or 21 (got %d)", extra)
292
+
}
293
+
t.Neg = &val
294
+
}
295
+
}
296
+
// t.Src (string) (string)
297
+
case "src":
298
+
299
+
{
300
+
sval, err := cbg.ReadString(cr)
301
+
if err != nil {
302
+
return err
303
+
}
304
+
305
+
t.Src = string(sval)
306
+
}
307
+
// t.URI (string) (string)
308
+
case "uri":
309
+
310
+
{
311
+
sval, err := cbg.ReadString(cr)
312
+
if err != nil {
313
+
return err
314
+
}
315
+
316
+
t.URI = string(sval)
317
+
}
318
+
// t.Val (string) (string)
319
+
case "val":
320
+
321
+
{
322
+
sval, err := cbg.ReadString(cr)
323
+
if err != nil {
324
+
return err
325
+
}
326
+
327
+
t.Val = string(sval)
328
+
}
329
+
330
+
default:
331
+
// Field doesn't exist on this type, so ignore it
332
+
cbg.ScanForLinks(r, func(cid.Cid) {})
333
+
}
334
+
}
335
+
336
+
return nil
337
+
}
+35
util/labels/labels.go
+35
util/labels/labels.go
···
1
+
package labels
2
+
3
+
import (
4
+
"bytes"
5
+
6
+
"github.com/bluesky-social/indigo/api/atproto"
7
+
)
8
+
9
+
// UnsignedLabel is a label without the signature so we can validate it
10
+
type UnsignedLabel struct {
11
+
// cid: Optionally, CID specifying the specific version of 'uri' resource this label applies to.
12
+
CID *string `json:"cid,omitempty" cborgen:"cid,omitempty"`
13
+
// cts: Timestamp when this label was created.
14
+
CTS string `json:"cts" cborgen:"cts"`
15
+
// neg: If true, this is a negation label, overwriting a previous label.
16
+
Neg *bool `json:"neg,omitempty" cborgen:"neg,omitempty"`
17
+
// src: DID of the actor who created this label.
18
+
Src string `json:"src" cborgen:"src"`
19
+
// uri: AT URI of the record, repository (account), or other resource that this label applies to.
20
+
URI string `json:"uri" cborgen:"uri"`
21
+
// val: The short string name of the value or type of this label.
22
+
Val string `json:"val" cborgen:"val"`
23
+
}
24
+
25
+
// SignedLabel is a label with a signature, this type is generated via lexgen but aliased here for convenience
26
+
type SignedLabel atproto.LabelDefs_Label
27
+
28
+
// BytesForSigning returns bytes of the DAG-CBOR representation of object
29
+
func (ul *UnsignedLabel) BytesForSigning() ([]byte, error) {
30
+
buf := new(bytes.Buffer)
31
+
if err := ul.MarshalCBOR(buf); err != nil {
32
+
return []byte{}, err
33
+
}
34
+
return buf.Bytes(), nil
35
+
}