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ravencoin: expose Core backend capability #3

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ravencoin: expose Core backend capability #3

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35 changes: 34 additions & 1 deletion src/electrumx/server/env.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,39 @@ def __init__(self, coin=None):
network = self.default('NET', 'mainnet').strip()
self.coin = Coin.lookup_coin_class(coin_name, network)

# Ravencoin backend capability is installed only for RVN. This keeps
# generic ElectrumX and every other coin on their existing daemon,
# session and protocol paths. The new RPC is additive, so legacy
# Electrum clients continue to use the inherited handlers unchanged.
self.ravencoin_backend_identity = None
self.ravencoin_backend_info_max_age = 5
if self.coin.NAME == 'Ravencoin':
from electrumx.server.ravencoin_backend import (
BackendIdentity,
configure_ravencoin_coin,
)

configure_ravencoin_coin(self.coin)
self.ravencoin_backend_info_max_age = self.integer(
'RAVENCOIN_BACKEND_INFO_MAX_AGE', 5
)
if not 0 <= self.ravencoin_backend_info_max_age <= 60:
raise self.Error(
'RAVENCOIN_BACKEND_INFO_MAX_AGE must be between 0 and 60 seconds'
)
try:
self.ravencoin_backend_identity = BackendIdentity.from_config(
repository=self.default('RAVENCOIN_SOURCE_REPOSITORY', ''),
tag=self.default('RAVENCOIN_SOURCE_TAG', ''),
commit=self.default('RAVENCOIN_SOURCE_COMMIT', ''),
artifact_sha256=self.default('RAVENCOIN_ARTIFACT_SHA256', ''),
evidence=self.default('RAVENCOIN_IDENTITY_EVIDENCE', ''),
)
except ValueError as exc:
raise self.Error(
f'invalid Ravencoin backend identity configuration: {exc}'
) from exc

# Peer discovery

self.peer_discovery = self.peer_discovery_enum()
Expand Down Expand Up @@ -141,7 +174,7 @@ def sane_max_sessions(self):
f'{nofile_limit:,d}'
)
except ImportError:
value = 512 # that is what returned by stdio's _getmaxstdio()
value = 512 # that is what returned by stdio's maxstdio()
return value

def _check_and_fix_cost_limits(self):
Expand Down
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