async def respond_proof_of_space(
self, response: harvester_protocol.RespondProofOfSpace):
"""
This is a response from the harvester with a proof of space. We check it's validity,
and request a pool partial, a header signature, or both, if the proof is good enough.
"""
if response.proof.pool_pubkey not in self.pool_public_keys:
raise RuntimeError("Pool pubkey not in list of approved keys")
challenge_hash: bytes32 = self.harvester_responses_challenge[
response.quality_string]
challenge_weight: uint128 = self.challenge_to_weight[challenge_hash]
challenge_height: uint32 = self.challenge_to_height[challenge_hash]
new_proof_height: uint32 = uint32(challenge_height + 1)
difficulty: uint64 = uint64(0)
for posf in self.challenges[challenge_weight]:
if posf.challenge_hash == challenge_hash:
difficulty = posf.difficulty
if difficulty == 0:
raise RuntimeError("Did not find challenge")
computed_quality_string = response.proof.verify_and_get_quality_string(
)
if response.quality_string != computed_quality_string:
raise RuntimeError("Invalid quality for proof of space")
self.harvester_responses_proofs[
response.quality_string] = response.proof
self.harvester_responses_proof_hash_to_qual[
response.proof.get_hash()] = response.quality_string
estimate_min = (self.proof_of_time_estimate_ips *
self.constants["BLOCK_TIME_TARGET"] /
self.constants["MIN_ITERS_PROPORTION"])
number_iters: uint64 = calculate_iterations_quality(
computed_quality_string,
response.proof.size,
difficulty,
estimate_min,
)
estimate_secs: float = number_iters / self.proof_of_time_estimate_ips
if estimate_secs < self.config["pool_share_threshold"]:
request1 = harvester_protocol.RequestPartialProof(
response.quality_string,
self.wallet_target,
)
yield OutboundMessage(
NodeType.HARVESTER,
Message("request_partial_proof", request1),
Delivery.RESPOND,
)
if estimate_secs < self.config["propagate_threshold"]:
pool_pk = bytes(response.proof.pool_pubkey)
if pool_pk not in self.pool_sks_map:
log.error(
f"Don't have the private key for the pool key used by harvester: {pool_pk.hex()}"
)
return
sk = self.pool_sks_map[pool_pk]
coinbase_reward = uint64(
calculate_block_reward(uint32(new_proof_height)))
coinbase, signature = create_coinbase_coin_and_signature(
new_proof_height,
self.pool_target,
coinbase_reward,
sk,
)
request2 = farmer_protocol.RequestHeaderHash(
challenge_hash,
coinbase,
signature,
self.wallet_target,
response.proof,
)
yield OutboundMessage(
NodeType.FULL_NODE,
Message("request_header_hash", request2),
Delivery.BROADCAST,
)
async def respond_proof_of_space(
self, response: harvester_protocol.RespondProofOfSpace):
"""
This is a response from the harvester with a proof of space. We check it's validity,
and request a pool partial, a header signature, or both, if the proof is good enough.
"""
pool_sks: List[PrivateKey] = [
PrivateKey.from_bytes(bytes.fromhex(ce))
for ce in self.key_config["pool_sks"]
]
assert response.proof.pool_pubkey in [
sk.get_public_key() for sk in pool_sks
]
challenge_hash: bytes32 = self.harvester_responses_challenge[
response.quality]
challenge_weight: uint64 = self.challenge_to_weight[challenge_hash]
challenge_height: uint32 = self.challenge_to_height[challenge_hash]
new_proof_height: uint32 = uint32(challenge_height + 1)
difficulty: uint64 = uint64(0)
for posf in self.challenges[challenge_weight]:
if posf.challenge_hash == challenge_hash:
difficulty = posf.difficulty
if difficulty == 0:
raise RuntimeError("Did not find challenge")
computed_quality = response.proof.verify_and_get_quality()
assert response.quality == computed_quality
self.harvester_responses_proofs[response.quality] = response.proof
self.harvester_responses_proof_hash_to_qual[
response.proof.get_hash()] = response.quality
number_iters: uint64 = calculate_iterations_quality(
computed_quality,
response.proof.size,
difficulty,
self.proof_of_time_estimate_ips,
constants["MIN_BLOCK_TIME"],
)
estimate_secs: float = number_iters / self.proof_of_time_estimate_ips
if estimate_secs < self.config["pool_share_threshold"]:
request1 = harvester_protocol.RequestPartialProof(
response.quality,
sha256(bytes.fromhex(
self.key_config["farmer_target"])).digest(),
)
yield OutboundMessage(
NodeType.HARVESTER,
Message("request_partial_proof", request1),
Delivery.RESPOND,
)
if estimate_secs < self.config["propagate_threshold"]:
if new_proof_height not in self.coinbase_rewards:
log.error(
f"Don't have coinbase transaction for height {new_proof_height}, cannot submit PoS"
)
return
coinbase, signature = self.coinbase_rewards[new_proof_height]
request2 = farmer_protocol.RequestHeaderHash(
challenge_hash,
coinbase,
signature,
bytes.fromhex(self.key_config["farmer_target"]),
response.proof,
)
yield OutboundMessage(
NodeType.FULL_NODE,
Message("request_header_hash", request2),
Delivery.BROADCAST,
)
async def respond_proof_of_space(
self, response: harvester_protocol.RespondProofOfSpace
):
"""
This is a response from the harvester with a proof of space. We check it's validity,
and request a pool partial, a header signature, or both, if the proof is good enough.
"""
challenge_hash: bytes32 = response.proof.challenge_hash
challenge_weight: uint128 = self.challenge_to_weight[challenge_hash]
difficulty: uint64 = uint64(0)
for posf in self.challenges[challenge_weight]:
if posf.challenge_hash == challenge_hash:
difficulty = posf.difficulty
if difficulty == 0:
raise RuntimeError("Did not find challenge")
computed_quality_string = response.proof.verify_and_get_quality_string(
self.constants.NUMBER_ZERO_BITS_CHALLENGE_SIG
)
if computed_quality_string is None:
raise RuntimeError("Invalid proof of space")
self.harvester_responses_proofs[
(response.proof.challenge_hash, response.plot_id, response.response_number)
] = response.proof
self.harvester_responses_proof_hash_to_info[response.proof.get_hash()] = (
response.proof.challenge_hash,
response.plot_id,
response.response_number,
)
estimate_min = (
self.proof_of_time_estimate_ips
* self.constants.BLOCK_TIME_TARGET
/ self.constants.MIN_ITERS_PROPORTION
)
estimate_min = uint64(int(estimate_min))
number_iters: uint64 = calculate_iterations_quality(
computed_quality_string,
response.proof.size,
difficulty,
estimate_min,
)
estimate_secs: float = number_iters / self.proof_of_time_estimate_ips
if estimate_secs < self.config["pool_share_threshold"]:
# TODO: implement pooling
pass
if estimate_secs < self.config["propagate_threshold"]:
pool_pk = bytes(response.proof.pool_public_key)
if pool_pk not in self.pool_sks_map:
log.error(
f"Don't have the private key for the pool key used by harvester: {pool_pk.hex()}"
)
return
pool_target: PoolTarget = PoolTarget(self.pool_target, uint32(0))
pool_target_signature: G2Element = AugSchemeMPL.sign(
self.pool_sks_map[pool_pk], bytes(pool_target)
)
request2 = farmer_protocol.RequestHeaderHash(
challenge_hash,
response.proof,
pool_target,
pool_target_signature,
self.wallet_target,
)
yield OutboundMessage(
NodeType.FULL_NODE,
Message("request_header_hash", request2),
Delivery.BROADCAST,
)