1use std::fmt::{Debug, Formatter};
2
3use anyhow::Context;
4use serde::{Deserialize, Serialize};
5
6use crate::StdError;
7use crate::entities::{
8 Certificate, CertificateMetadata, CertificateSignature, Epoch, ProtocolMessage,
9 SignedEntityType,
10};
11use crate::messages::CertificateMetadataMessagePart;
12#[cfg(any(test, feature = "test_tools"))]
13use crate::{entities::ProtocolMessagePartKey, test_utils::fake_keys};
14
15#[derive(Clone, PartialEq, Serialize, Deserialize)]
17pub struct CertificateMessage {
18 pub hash: String,
22
23 pub previous_hash: String,
28
29 pub epoch: Epoch,
31
32 pub signed_entity_type: SignedEntityType,
35
36 pub metadata: CertificateMetadataMessagePart,
39
40 pub protocol_message: ProtocolMessage,
43
44 pub signed_message: String,
47
48 pub aggregate_verification_key: String,
52
53 pub multi_signature: String,
56
57 pub genesis_signature: String,
60}
61
62impl CertificateMessage {
63 cfg_test_tools! {
64 pub fn dummy() -> Self {
66 let mut protocol_message = ProtocolMessage::new();
67 protocol_message.set_message_part(
68 ProtocolMessagePartKey::SnapshotDigest,
69 "snapshot-digest-123".to_string(),
70 );
71 protocol_message.set_message_part(
72 ProtocolMessagePartKey::NextAggregateVerificationKey,
73 fake_keys::aggregate_verification_key()[1].to_owned(),
74 );
75 let epoch = Epoch(10);
76
77 Self {
78 hash: "hash".to_string(),
79 previous_hash: "previous_hash".to_string(),
80 epoch,
81 signed_entity_type: SignedEntityType::MithrilStakeDistribution(epoch),
82 metadata: CertificateMetadataMessagePart::dummy(),
83 protocol_message: protocol_message.clone(),
84 signed_message: "signed_message".to_string(),
85 aggregate_verification_key: fake_keys::aggregate_verification_key()[0].to_owned(),
86 multi_signature: fake_keys::multi_signature()[0].to_owned(),
87 genesis_signature: String::new(),
88 }
89 }
90 }
91
92 pub fn match_message(&self, message: &ProtocolMessage) -> bool {
94 message.compute_hash() == self.signed_message
95 }
96}
97
98impl Debug for CertificateMessage {
99 fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
100 let should_be_exhaustive = f.alternate();
101 let mut debug = f.debug_struct("Certificate");
102 debug
103 .field("hash", &self.hash)
104 .field("previous_hash", &self.previous_hash)
105 .field("epoch", &format_args!("{:?}", self.epoch))
106 .field(
107 "signed_entity_type",
108 &format_args!("{:?}", self.signed_entity_type),
109 )
110 .field("metadata", &format_args!("{:?}", self.metadata))
111 .field(
112 "protocol_message",
113 &format_args!("{:?}", self.protocol_message),
114 )
115 .field("signed_message", &self.signed_message);
116
117 match should_be_exhaustive {
118 true => debug
119 .field(
120 "aggregate_verification_key",
121 &self.aggregate_verification_key,
122 )
123 .field("multi_signature", &self.multi_signature)
124 .field("genesis_signature", &self.genesis_signature)
125 .finish(),
126 false => debug.finish_non_exhaustive(),
127 }
128 }
129}
130
131impl TryFrom<CertificateMessage> for Certificate {
132 type Error = StdError;
133
134 fn try_from(certificate_message: CertificateMessage) -> Result<Self, Self::Error> {
135 let metadata = CertificateMetadata {
136 network: certificate_message.metadata.network,
137 protocol_version: certificate_message.metadata.protocol_version,
138 protocol_parameters: certificate_message.metadata.protocol_parameters,
139 initiated_at: certificate_message.metadata.initiated_at,
140 sealed_at: certificate_message.metadata.sealed_at,
141 signers: certificate_message.metadata.signers,
142 };
143
144 let certificate = Certificate {
145 hash: certificate_message.hash,
146 previous_hash: certificate_message.previous_hash,
147 epoch: certificate_message.epoch,
148 metadata,
149 protocol_message: certificate_message.protocol_message,
150 signed_message: certificate_message.signed_message,
151 aggregate_verification_key: certificate_message
152 .aggregate_verification_key
153 .try_into()
154 .with_context(|| {
155 "Can not convert message to certificate: can not decode the aggregate verification key"
156 })?,
157 signature: if certificate_message.genesis_signature.is_empty() {
158 CertificateSignature::MultiSignature(
159 certificate_message.signed_entity_type,
160 certificate_message
161 .multi_signature
162 .try_into()
163 .with_context(|| {
164 "Can not convert message to certificate: can not decode the multi-signature"
165 })?,
166 )
167 } else {
168 CertificateSignature::GenesisSignature(
169 certificate_message
170 .genesis_signature
171 .try_into()
172 .with_context(|| {
173 "Can not convert message to certificate: can not decode the genesis signature"
174 })?,
175 )
176 },
177 };
178
179 Ok(certificate)
180 }
181}
182
183impl TryFrom<Certificate> for CertificateMessage {
184 type Error = StdError;
185
186 fn try_from(certificate: Certificate) -> Result<Self, Self::Error> {
187 let signed_entity_type = certificate.signed_entity_type();
188 let metadata = CertificateMetadataMessagePart {
189 network: certificate.metadata.network,
190 protocol_version: certificate.metadata.protocol_version,
191 protocol_parameters: certificate.metadata.protocol_parameters,
192 initiated_at: certificate.metadata.initiated_at,
193 sealed_at: certificate.metadata.sealed_at,
194 signers: certificate.metadata.signers,
195 };
196
197 let (multi_signature, genesis_signature) = match certificate.signature {
198 CertificateSignature::GenesisSignature(signature) => (
199 String::new(),
200 signature.to_bytes_hex().with_context(|| {
201 "Can not convert certificate to message: can not encode the genesis signature"
202 })?,
203 ),
204 CertificateSignature::MultiSignature(_, signature) => (
205 signature.to_json_hex().with_context(|| {
206 "Can not convert certificate to message: can not encode the multi-signature"
207 })?,
208 String::new(),
209 ),
210 };
211
212 let message = CertificateMessage {
213 hash: certificate.hash,
214 previous_hash: certificate.previous_hash,
215 epoch: certificate.epoch,
216 signed_entity_type,
217 metadata,
218 protocol_message: certificate.protocol_message,
219 signed_message: certificate.signed_message,
220 aggregate_verification_key: certificate
221 .aggregate_verification_key
222 .to_json_hex()
223 .with_context(|| {
224 "Can not convert certificate to message: can not encode aggregate verification key"
225 })?,
226 multi_signature,
227 genesis_signature,
228 };
229
230 Ok(message)
231 }
232}
233
234#[cfg(test)]
235mod tests {
236 use chrono::{DateTime, Utc};
237
238 use crate::entities::{CardanoDbBeacon, ProtocolParameters, StakeDistributionParty};
239
240 use super::*;
241
242 fn golden_certificate_message() -> CertificateMessage {
243 CertificateMessage {
244 hash: "hash".to_string(),
245 previous_hash: "previous_hash".to_string(),
246 epoch: Epoch(10),
247 signed_entity_type: SignedEntityType::CardanoImmutableFilesFull(CardanoDbBeacon::new(
248 *Epoch(10),
249 1728,
250 )),
251 metadata: CertificateMetadataMessagePart {
252 network: "testnet".to_string(),
253 protocol_version: "0.1.0".to_string(),
254 protocol_parameters: ProtocolParameters::new(1000, 100, 0.123),
255 initiated_at: DateTime::parse_from_rfc3339("2024-02-12T13:11:47Z")
256 .unwrap()
257 .with_timezone(&Utc),
258 sealed_at: DateTime::parse_from_rfc3339("2024-02-12T13:12:57Z")
259 .unwrap()
260 .with_timezone(&Utc),
261 signers: vec![
262 StakeDistributionParty {
263 party_id: "1".to_string(),
264 stake: 10,
265 },
266 StakeDistributionParty {
267 party_id: "2".to_string(),
268 stake: 20,
269 },
270 ],
271 },
272 protocol_message: {
273 let mut protocol_message = ProtocolMessage::new();
274 protocol_message.set_message_part(
275 ProtocolMessagePartKey::SnapshotDigest,
276 "snapshot-digest-123".to_string(),
277 );
278 protocol_message.set_message_part(
279 ProtocolMessagePartKey::NextAggregateVerificationKey,
280 "next-avk-123".to_string(),
281 );
282
283 protocol_message
284 },
285 signed_message: "signed_message".to_string(),
286 aggregate_verification_key: "aggregate_verification_key".to_string(),
287 multi_signature: "multi_signature".to_string(),
288 genesis_signature: "genesis_signature".to_string(),
289 }
290 }
291
292 mod golden_json_serialization {
293
294 use super::*;
295
296 const CURRENT_JSON: &str = r#"{
297 "hash": "hash",
298 "previous_hash": "previous_hash",
299 "epoch": 10,
300 "signed_entity_type": {
301 "CardanoImmutableFilesFull": {
302 "epoch": 10,
303 "immutable_file_number": 1728
304 }
305 },
306 "metadata": {
307 "network": "testnet",
308 "version": "0.1.0",
309 "parameters": {
310 "k": 1000,
311 "m": 100,
312 "phi_f": 0.123
313 },
314 "initiated_at": "2024-02-12T13:11:47Z",
315 "sealed_at": "2024-02-12T13:12:57Z",
316 "signers": [
317 {
318 "party_id": "1",
319 "verification_key": "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",
320 "stake": 10
321 },
322 {
323 "party_id": "2",
324 "verification_key": "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",
325 "stake": 20
326 }
327 ]
328 },
329 "protocol_message": {
330 "message_parts": {
331 "snapshot_digest": "snapshot-digest-123",
332 "next_aggregate_verification_key": "next-avk-123"
333 }
334 },
335 "signed_message": "signed_message",
336 "aggregate_verification_key": "aggregate_verification_key",
337 "multi_signature": "multi_signature",
338 "genesis_signature": "genesis_signature"
339 }"#;
340
341 fn golden_current_message() -> CertificateMessage {
342 golden_certificate_message()
343 }
344
345 #[test]
346 fn test_current_json_deserialized_into_current_message() {
347 let json = CURRENT_JSON;
348 let message: CertificateMessage = serde_json::from_str(json).unwrap();
349
350 assert_eq!(golden_current_message(), message);
351 }
352 }
353
354 mod golden_protocol_key_encodings {
355 use super::*;
356
357 mod standard_certificate {
358 use super::*;
359
360 fn golden_message_with_json_hex_encoding() -> CertificateMessage {
361 CertificateMessage {
362 aggregate_verification_key: "7b226d745f636f6d6d69746d656e74223a7b22726f6f74223a5b3234312c3235352c35332c3133352c3231322c3134322c33372c3131342c3133302c3131372c3135342c3230382c34392c3134352c31362c3132382c3230392c37352c3137392c32392c35392c3136352c3134352c3235302c34372c332c3233312c3134302c3137382c35302c3231322c3131345d2c226e725f6c6561766573223a342c22686173686572223a6e756c6c7d2c22746f74616c5f7374616b65223a33303337393438363730323339327d".to_string(),
363 multi_signature: "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".to_string(),
364 genesis_signature: "".to_string(),
365 ..golden_certificate_message()
366 }
367 }
368
369 fn golden_message_with_bytes_hex_encoding() -> CertificateMessage {
370 CertificateMessage {
371 aggregate_verification_key: "20f1ff3587d48e257282759ad031911080d14bb31d3ba591fa2f03e78cb232d47204fd386b8346a11b0000".to_string(),
372 multi_signature: "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".to_string(),
373 genesis_signature: "".to_string(),
374 ..golden_certificate_message()
375 }
376 }
377
378 #[test]
379 fn restorations_from_json_hex_and_bytes_hex_give_same_certificate() {
380 let certificate_from_json_hex: Certificate =
381 golden_message_with_json_hex_encoding().try_into().unwrap();
382 let certificate_from_bytes_hex: Certificate =
383 golden_message_with_bytes_hex_encoding().try_into().unwrap();
384
385 assert_eq!(certificate_from_json_hex, certificate_from_bytes_hex);
386 }
387 }
388
389 mod genesis_certificate {
390 use super::*;
391
392 fn golden_message_with_bytes_hex_encoding() -> CertificateMessage {
393 CertificateMessage {
394 aggregate_verification_key: "20f1ff3587d48e257282759ad031911080d14bb31d3ba591fa2f03e78cb232d47204fd386b8346a11b0000".to_string(),
395 multi_signature: "".to_string(),
396 genesis_signature: "c21f77fb812a8111b547c2145d765f854ca224b17e883d6483b668a8c4d095fd893efd2a2ba1d41da9f49d82bf02d8ee603791998b64436000e49184c000170b".to_string(),
397 ..golden_certificate_message()
398 }
399 }
400
401 #[test]
402 fn restorations_from_bytes_hex_succeeds() {
403 let _certificate_from_bytes_hex: Certificate =
404 golden_message_with_bytes_hex_encoding().try_into().unwrap();
405 }
406 }
407 }
408}