def handle_escrow(self, tx, current_ledger_id):
print('called handle_escrow {}'.format(tx['id']))
ilp_header = tx['transaction']['data']['payload']['ilp_header']
if 'hops' not in ilp_header:
ilp_header['hops'] = []
ilp_header['hops'].append({
'ledger': current_ledger_id,
'txid': tx['id']
})
destination_ledger_id = ilp_header['ledger']
ledger = get_bigchain(ledger_id=destination_ledger_id)
source = self.accounts[destination_ledger_id]['vk']
to = ilp_header['account']
asset_id = ledger.get_owned_ids(source).pop()
sk = self.accounts[destination_ledger_id]['sk']
condition = cc.Fulfillment.from_dict(tx['transaction']['conditions'][0]['condition']['details'])
timelocks, _ = get_subcondition_indices_from_type(condition, cc.TimeoutFulfillment.TYPE_ID)
expires_at = timelocks[0].expire_time.decode()
hashlocks, _ = get_subcondition_indices_from_type(condition, cc.PreimageSha256Fulfillment.TYPE_ID)
execution_condition = hashlocks[0].serialize_uri()
escrow_asset(bigchain=ledger,
source=source,
to=to,
asset_id=asset_id,
sk=sk,
expires_at=expires_at,
ilp_header=ilp_header,
execution_condition=execution_condition)
def handle_escrow(self, tx, current_ledger_id):
print('called handle_escrow {}'.format(tx['id']))
ilp_header = tx['transaction']['data']['payload']['ilp_header']
if 'hops' not in ilp_header:
ilp_header['hops'] = []
ilp_header['hops'].append({
'ledger': current_ledger_id,
'txid': tx['id']
})
destination_ledger_id = ilp_header['ledger']
ledger = get_bigchain(ledger_id=destination_ledger_id)
source = self.accounts[destination_ledger_id]['vk']
to = ilp_header['account']
asset_id = ledger.get_owned_ids(source).pop()
sk = self.accounts[destination_ledger_id]['sk']
condition = cc.Fulfillment.from_dict(
tx['transaction']['conditions'][0]['condition']['details'])
timelocks, _ = get_subcondition_indices_from_type(
condition, cc.TimeoutFulfillment.TYPE_ID)
expires_at = timelocks[0].expire_time.decode()
hashlocks, _ = get_subcondition_indices_from_type(
condition, cc.PreimageSha256Fulfillment.TYPE_ID)
execution_condition = hashlocks[0].serialize_uri()
escrow_asset(bigchain=ledger,
source=source,
to=to,
asset_id=asset_id,
sk=sk,
expires_at=expires_at,
ilp_header=ilp_header,
execution_condition=execution_condition)
def escrow_asset(asset_id, cid):
json_payload = request.get_json(force=True)
source = json_payload.pop('source')
expires_at = json_payload.pop('expiresAt')
ilp_header = json_payload.pop('ilpHeader', None)
execution_condition = json_payload.pop('executionCondition')
to = json_payload.pop('to')
tx = assets.escrow_asset(bigchain=bigchain,
source=source['vk'],
to=to['vk'],
asset_id={
'txid': asset_id,
'cid': int(cid)
},
sk=source['sk'],
expires_at=expires_at,
ilp_header=ilp_header,
execution_condition=execution_condition)
return flask.jsonify(**tx)