def get_asset_info(asset, at_dt=None):
asset_info = config.mongo_db.tracked_assets.find_one({'asset': asset})
if asset not in (config.XCP, config.BTC) and at_dt and asset_info['_at_block_time'] > at_dt:
# get the asset info at or before the given at_dt datetime
for e in reversed(asset_info['_history']): # newest to oldest
if e['_at_block_time'] <= at_dt:
asset_info = e
break
else: # asset was created AFTER at_dt
asset_info = None
if asset_info is None:
return None
assert asset_info['_at_block_time'] <= at_dt
# modify some of the properties of the returned asset_info for BTC and XCP
if asset == config.BTC:
if at_dt:
start_block_index, end_block_index = database.get_block_indexes_for_dates(end_dt=at_dt)
asset_info['total_issued'] = blockchain.get_gasp_supply(normalize=False, at_block_index=end_block_index)
asset_info['total_issued_normalized'] = blockchain.normalize_quantity(asset_info['total_issued'])
else:
asset_info['total_issued'] = blockchain.get_gasp_supply(normalize=False)
asset_info['total_issued_normalized'] = blockchain.normalize_quantity(asset_info['total_issued'])
elif asset == config.XCP:
# BUG: this does not take end_dt (if specified) into account. however, the deviation won't be too big
# as XCP doesn't deflate quickly at all, and shouldn't matter that much since there weren't any/much trades
# before the end of the burn period (which is what is involved with how we use at_dt with currently)
asset_info['total_issued'] = util.call_jsonrpc_api("get_supply", {'asset': 'ASP'}, abort_on_error=True)['result']
asset_info['total_issued_normalized'] = blockchain.normalize_quantity(asset_info['total_issued'])
if not asset_info:
raise Exception("Invalid asset: %s" % asset)
return asset_info
def make_book(orders, isBidBook):
book = {}
for o in orders:
if o['give_asset'] == base_asset:
if base_asset == config.BTC and o[
'give_quantity'] <= config.ORDER_BTC_DUST_LIMIT_CUTOFF:
continue # filter dust orders, if necessary
give_quantity = blockchain.normalize_quantity(
o['give_quantity'], base_asset_info['divisible'])
get_quantity = blockchain.normalize_quantity(
o['get_quantity'], quote_asset_info['divisible'])
unit_price = float((D(get_quantity) / D(give_quantity)))
remaining = blockchain.normalize_quantity(
o['give_remaining'], base_asset_info['divisible'])
else:
if quote_asset == config.BTC and o[
'give_quantity'] <= config.ORDER_BTC_DUST_LIMIT_CUTOFF:
continue # filter dust orders, if necessary
give_quantity = blockchain.normalize_quantity(
o['give_quantity'], quote_asset_info['divisible'])
get_quantity = blockchain.normalize_quantity(
o['get_quantity'], base_asset_info['divisible'])
unit_price = float((D(give_quantity) / D(get_quantity)))
remaining = blockchain.normalize_quantity(
o['get_remaining'], base_asset_info['divisible'])
id = "%s_%s_%s" % (base_asset, quote_asset, unit_price)
#^ key = {base}_{bid}_{unit_price}, values ref entries in book
book.setdefault(id, {
'unit_price': unit_price,
'quantity': 0,
'count': 0
})
book[id]['quantity'] += remaining # base quantity outstanding
book[id]['count'] += 1 # num orders at this price level
book = sorted(iter(book.values()),
key=operator.itemgetter('unit_price'),
reverse=isBidBook)
#^ convert to list and sort -- bid book = descending, ask book = ascending
return book
def parse_trade_book(msg, msg_data):
# book trades
if (msg['category'] == 'order_matches' and
((msg['command'] == 'update' and msg_data['status'] == 'completed')
or # for a trade with BTC involved, but that is settled (completed)
('forward_asset' in msg_data
and msg_data['forward_asset'] != config.BTC
and msg_data['backward_asset'] != config.BTC))
): # or for a trade without BTC on either end
if msg['command'] == 'update' and msg_data['status'] == 'completed':
# an order is being updated to a completed status (i.e. a BTCpay has completed)
tx0_hash, tx1_hash = msg_data['order_match_id'][:64], msg_data[
'order_match_id'][65:]
# get the order_match this btcpay settles
order_match = util.jsonrpc_api("get_order_matches", {
'filters': [{
'field': 'tx0_hash',
'op': '==',
'value': tx0_hash
}, {
'field': 'tx1_hash',
'op': '==',
'value': tx1_hash
}]
},
abort_on_error=False)['result'][0]
else:
assert msg_data[
'status'] == 'completed' # should not enter a pending state for non BTC matches
order_match = msg_data
forward_asset_info = config.mongo_db.tracked_assets.find_one(
{'asset': order_match['forward_asset']})
backward_asset_info = config.mongo_db.tracked_assets.find_one(
{'asset': order_match['backward_asset']})
assert forward_asset_info and backward_asset_info
base_asset, quote_asset = util.assets_to_asset_pair(
order_match['forward_asset'], order_match['backward_asset'])
# don't create trade records from order matches with BTC that are under the dust limit
if ((order_match['forward_asset'] == config.BTC
and order_match['forward_quantity'] <=
config.ORDER_BTC_DUST_LIMIT_CUTOFF)
or (order_match['backward_asset'] == config.BTC
and order_match['backward_quantity'] <=
config.ORDER_BTC_DUST_LIMIT_CUTOFF)):
logger.debug("Order match %s ignored due to %s under dust limit." %
(order_match['tx0_hash'] + order_match['tx1_hash'],
config.BTC))
return 'ABORT_THIS_MESSAGE_PROCESSING'
# take divisible trade quantities to floating point
forward_quantity = blockchain.normalize_quantity(
order_match['forward_quantity'], forward_asset_info['divisible'])
backward_quantity = blockchain.normalize_quantity(
order_match['backward_quantity'], backward_asset_info['divisible'])
# compose trade
trade = {
'block_index':
config.state['cur_block']['block_index'],
'block_time':
config.state['cur_block']['block_time_obj'],
'message_index':
msg['message_index'], # secondary temporaral ordering off of when
'order_match_id':
order_match['tx0_hash'] + '_' + order_match['tx1_hash'],
'order_match_tx0_index':
order_match['tx0_index'],
'order_match_tx1_index':
order_match['tx1_index'],
'order_match_tx0_address':
order_match['tx0_address'],
'order_match_tx1_address':
order_match['tx1_address'],
'base_asset':
base_asset,
'quote_asset':
quote_asset,
'base_quantity':
order_match['forward_quantity'] if order_match['forward_asset']
== base_asset else order_match['backward_quantity'],
'quote_quantity':
order_match['backward_quantity'] if order_match['forward_asset']
== base_asset else order_match['forward_quantity'],
'base_quantity_normalized':
forward_quantity if order_match['forward_asset'] == base_asset else
backward_quantity,
'quote_quantity_normalized':
backward_quantity if order_match['forward_asset'] == base_asset
else forward_quantity,
}
d = D(trade['quote_quantity_normalized']) / D(
trade['base_quantity_normalized'])
d = d.quantize(EIGHT_PLACES,
rounding=decimal.ROUND_HALF_EVEN,
context=decimal.Context(prec=30))
trade['unit_price'] = float(d)
d = D(trade['base_quantity_normalized']) / D(
trade['quote_quantity_normalized'])
d = d.quantize(EIGHT_PLACES,
rounding=decimal.ROUND_HALF_EVEN,
context=decimal.Context(prec=30))
trade['unit_price_inverse'] = float(d)
config.mongo_db.trades.insert(trade)
logger.info("Procesed Trade from tx %s :: %s" %
(msg['message_index'], trade))
def compile_asset_pair_market_info():
"""Compiles the pair-level statistics that show on the View Prices page of aspirewallet, for instance"""
# loop through all open orders, and compile a listing of pairs, with a count of open orders for each pair
end_dt = datetime.datetime.utcnow()
start_dt = end_dt - datetime.timedelta(days=1)
start_block_index, end_block_index = database.get_block_indexes_for_dates(start_dt=start_dt, end_dt=end_dt)
open_orders = util.call_jsonrpc_api(
"get_orders",
{'filters': [
{'field': 'give_remaining', 'op': '>', 'value': 0},
{'field': 'get_remaining', 'op': '>', 'value': 0},
{'field': 'fee_required_remaining', 'op': '>=', 'value': 0},
{'field': 'fee_provided_remaining', 'op': '>=', 'value': 0},
],
'status': 'open',
'show_expired': False,
}, abort_on_error=True)['result']
pair_data = {}
asset_info = {}
def get_price(base_quantity_normalized, quote_quantity_normalized):
return float(D(quote_quantity_normalized / base_quantity_normalized))
# COMPOSE order depth, lowest ask, and highest bid column data
for o in open_orders:
(base_asset, quote_asset) = util.assets_to_asset_pair(o['give_asset'], o['get_asset'])
pair = '%s/%s' % (base_asset, quote_asset)
base_asset_info = asset_info.get(base_asset, config.mongo_db.tracked_assets.find_one({'asset': base_asset}))
if base_asset not in asset_info:
asset_info[base_asset] = base_asset_info
quote_asset_info = asset_info.get(quote_asset, config.mongo_db.tracked_assets.find_one({'asset': quote_asset}))
if quote_asset not in asset_info:
asset_info[quote_asset] = quote_asset_info
pair_data.setdefault(
pair,
{'open_orders_count': 0, 'lowest_ask': None, 'highest_bid': None,
'completed_trades_count': 0, 'vol_base': 0, 'vol_quote': 0})
#^ highest ask = open order selling base, highest bid = open order buying base
#^ we also initialize completed_trades_count, vol_base, vol_quote because every pair inited here may
# not have cooresponding data out of the trades_data_by_pair aggregation below
pair_data[pair]['open_orders_count'] += 1
base_quantity_normalized = blockchain.normalize_quantity(o['give_quantity'] if base_asset == o['give_asset'] else o['get_quantity'], base_asset_info['divisible'])
quote_quantity_normalized = blockchain.normalize_quantity(o['give_quantity'] if quote_asset == o['give_asset'] else o['get_quantity'], quote_asset_info['divisible'])
order_price = get_price(base_quantity_normalized, quote_quantity_normalized)
if base_asset == o['give_asset']: # selling base
if pair_data[pair]['lowest_ask'] is None or order_price < pair_data[pair]['lowest_ask']:
pair_data[pair]['lowest_ask'] = order_price
elif base_asset == o['get_asset']: # buying base
if pair_data[pair]['highest_bid'] is None or order_price > pair_data[pair]['highest_bid']:
pair_data[pair]['highest_bid'] = order_price
# COMPOSE volume data (in XCP and BTC), and % change data
# loop through all trade volume over the past 24h, and match that to the open orders
trades_data_by_pair = config.mongo_db.trades.aggregate([
{"$match": {
"block_time": {"$gte": start_dt, "$lte": end_dt}}
},
{"$project": {
"base_asset": 1,
"quote_asset": 1,
"base_quantity_normalized": 1, # to derive base volume
"quote_quantity_normalized": 1 # to derive quote volume
}},
{"$group": {
"_id": {"base_asset": "$base_asset", "quote_asset": "$quote_asset"},
"vol_base": {"$sum": "$base_quantity_normalized"},
"vol_quote": {"$sum": "$quote_quantity_normalized"},
"count": {"$sum": 1},
}}
])
for e in trades_data_by_pair:
pair = '%s/%s' % (e['_id']['base_asset'], e['_id']['quote_asset'])
pair_data.setdefault(pair, {'open_orders_count': 0, 'lowest_ask': None, 'highest_bid': None})
#^ initialize an empty pair in the event there are no open orders for that pair, but there ARE completed trades for it
pair_data[pair]['completed_trades_count'] = e['count']
pair_data[pair]['vol_base'] = e['vol_base']
pair_data[pair]['vol_quote'] = e['vol_quote']
# compose price data, relative to BTC and XCP
mps_xcp_btc, xcp_btc_price, btc_xcp_price = get_price_primatives()
for pair, e in pair_data.items():
base_asset, quote_asset = pair.split('/')
_24h_vol_in_btc = None
_24h_vol_in_xcp = None
# derive asset price data, expressed in BTC and XCP, for the given volumes
if base_asset == config.XCP:
_24h_vol_in_xcp = e['vol_base']
_24h_vol_in_btc = blockchain.round_out(e['vol_base'] * xcp_btc_price) if xcp_btc_price else 0
elif base_asset == config.BTC:
_24h_vol_in_xcp = blockchain.round_out(e['vol_base'] * btc_xcp_price) if btc_xcp_price else 0
_24h_vol_in_btc = e['vol_base']
else: # base is not XCP or BTC
price_summary_in_xcp, price_summary_in_btc, price_in_xcp, price_in_btc, aggregated_price_in_xcp, aggregated_price_in_btc = \
get_xcp_btc_price_info(base_asset, mps_xcp_btc, xcp_btc_price, btc_xcp_price, with_last_trades=0, start_dt=start_dt, end_dt=end_dt)
if price_in_xcp:
_24h_vol_in_xcp = blockchain.round_out(e['vol_base'] * price_in_xcp)
if price_in_btc:
_24h_vol_in_btc = blockchain.round_out(e['vol_base'] * price_in_btc)
if _24h_vol_in_xcp is None or _24h_vol_in_btc is None:
# the base asset didn't have price data against BTC or XCP, or both...try against the quote asset instead
price_summary_in_xcp, price_summary_in_btc, price_in_xcp, price_in_btc, aggregated_price_in_xcp, aggregated_price_in_btc = \
get_xcp_btc_price_info(quote_asset, mps_xcp_btc, xcp_btc_price, btc_xcp_price, with_last_trades=0, start_dt=start_dt, end_dt=end_dt)
if _24h_vol_in_xcp is None and price_in_xcp:
_24h_vol_in_xcp = blockchain.round_out(e['vol_quote'] * price_in_xcp)
if _24h_vol_in_btc is None and price_in_btc:
_24h_vol_in_btc = blockchain.round_out(e['vol_quote'] * price_in_btc)
pair_data[pair]['24h_vol_in_{}'.format(config.XCP.lower())] = _24h_vol_in_xcp # might still be None
pair_data[pair]['24h_vol_in_{}'.format(config.BTC.lower())] = _24h_vol_in_btc # might still be None
# get % change stats -- start by getting the first trade directly before the 24h period starts
prev_trade = config.mongo_db.trades.find({
"base_asset": base_asset,
"quote_asset": quote_asset,
"block_time": {'$lt': start_dt}}).sort('block_time', pymongo.DESCENDING).limit(1)
latest_trade = config.mongo_db.trades.find({
"base_asset": base_asset,
"quote_asset": quote_asset}).sort('block_time', pymongo.DESCENDING).limit(1)
if not prev_trade.count(): # no previous trade before this 24hr period
pair_data[pair]['24h_pct_change'] = None
else:
prev_trade = prev_trade[0]
latest_trade = latest_trade[0]
prev_trade_price = get_price(prev_trade['base_quantity_normalized'], prev_trade['quote_quantity_normalized'])
latest_trade_price = get_price(latest_trade['base_quantity_normalized'], latest_trade['quote_quantity_normalized'])
pair_data[pair]['24h_pct_change'] = ((latest_trade_price - prev_trade_price) / prev_trade_price) * 100
pair_data[pair]['last_updated'] = end_dt
# print "PRODUCED", pair, pair_data[pair]
config.mongo_db.asset_pair_market_info.update({'base_asset': base_asset, 'quote_asset': quote_asset}, {"$set": pair_data[pair]}, upsert=True)
# remove any old pairs that were not just updated
config.mongo_db.asset_pair_market_info.remove({'last_updated': {'$lt': end_dt}})
logger.info("Recomposed 24h trade statistics for %i asset pairs: %s" % (len(pair_data), ', '.join(list(pair_data.keys()))))
def decorate_message(message, for_txn_history=False):
# insert custom fields in certain events...
# even invalid actions need these extra fields for proper reporting to the client (as the reporting message
# is produced via PendingActionViewModel.calcText) -- however make it able to deal with the queried data not existing in this case
assert '_category' in message
if for_txn_history:
message['_command'] = 'insert' # history data doesn't include this
block_index = message[
'block_index'] if 'block_index' in message else message[
'tx1_block_index']
message['_block_time'] = database.get_block_time(block_index)
message['_tx_index'] = message[
'tx_index'] if 'tx_index' in message else message.get(
'tx1_index', None)
if message['_category'] in [
'bet_expirations', 'order_expirations',
'bet_match_expirations', 'order_match_expirations'
]:
message[
'_tx_index'] = 0 # add tx_index to all entries (so we can sort on it secondarily in history view), since these lack it
# include asset extended information (longname and divisible)
for attr in ('asset', 'get_asset', 'give_asset', 'forward_asset',
'backward_asset', 'dividend_asset'):
if attr not in message:
continue
asset_info = config.mongo_db.tracked_assets.find_one(
{'asset': message[attr]})
message['_{}_longname'.format(
attr)] = asset_info['asset_longname'] if asset_info else None
message['_{}_divisible'.format(
attr)] = asset_info['divisible'] if asset_info else None
if message['_category'] in ['credits', 'debits']:
# find the last balance change on record
bal_change = config.mongo_db.balance_changes.find_one(
{
'address': message['address'],
'asset': message['asset']
},
sort=[("block_time", pymongo.DESCENDING)])
message['_quantity_normalized'] = abs(
bal_change['quantity_normalized']) if bal_change else None
message['_balance'] = bal_change['new_balance'] if bal_change else None
message['_balance_normalized'] = bal_change[
'new_balance_normalized'] if bal_change else None
if message['_category'] in [
'orders',
'order_matches',
]:
message['_btc_below_dust_limit'] = (
('forward_asset' in message
and message['forward_asset'] == config.BTC and
message['forward_quantity'] <= config.ORDER_BTC_DUST_LIMIT_CUTOFF)
or ('backward_asset' in message
and message['backward_asset'] == config.BTC
and message['backward_quantity'] <=
config.ORDER_BTC_DUST_LIMIT_CUTOFF))
if message['_category'] in [
'issuances',
]:
message['_quantity_normalized'] = blockchain.normalize_quantity(
message['quantity'], message['divisible'])
return message
def process_rollback(max_block_index):
if not max_block_index: # full reparse
config.mongo_db.balance_changes.drop()
config.mongo_db.tracked_assets.drop()
config.mongo_db.asset_extended_info.drop()
# create XCP and BTC assets in tracked_assets
for asset in [(config.XCP, config.XCP_NAME),
(config.BTC, config.BTC_NAME)]:
tracked_asset = {
'_change_type':
'created',
'_at_block':
config.BLOCK_FIRST,
'_at_block_time':
datetime.datetime.utcfromtimestamp(1532325354),
'asset':
asset[0],
'asset_longname':
asset[1],
'owner':
None,
'description':
asset[1],
'divisible':
8,
'locked':
False,
'total_issued':
int(1000000000 * 10**8),
'total_issued_normalized':
blockchain.normalize_quantity(int(1000000000 * 10**8), 8),
'_history': [] # to allow for block rollbacks
}
config.mongo_db.tracked_assets.insert(tracked_asset)
else: # rollback
config.mongo_db.balance_changes.remove(
{"block_index": {
"$gt": max_block_index
}})
# to roll back the state of the tracked asset, dive into the history object for each asset that has
# been updated on or after the block that we are pruning back to
assets_to_prune = config.mongo_db.tracked_assets.find(
{'_at_block': {
"$gt": max_block_index
}})
for asset in assets_to_prune:
prev_ver = None
while len(asset['_history']):
prev_ver = asset['_history'].pop()
if prev_ver['_at_block'] <= max_block_index:
break
if not prev_ver or prev_ver['_at_block'] > max_block_index:
# even the first history version is newer than max_block_index.
# in this case, just remove the asset tracking record itself
logger.info(
"Pruning asset %s (last modified @ block %i, removing as no older state available that is <= block %i)"
% (asset['asset'], asset['_at_block'], max_block_index))
config.mongo_db.tracked_assets.remove(
{'asset': asset['asset']})
else:
# if here, we were able to find a previous version that was saved at or before max_block_index
# (which should be prev_ver ... restore asset's values to its values
logger.info(
"Pruning asset %s (last modified @ block %i, pruning to state at block %i)"
% (asset['asset'], asset['_at_block'], max_block_index))
prev_ver['_id'] = asset['_id']
prev_ver['_history'] = asset['_history']
config.mongo_db.tracked_assets.save(prev_ver)
def parse_balance_change(msg, msg_data):
# track balance changes for each address
bal_change = None
if msg['category'] in [
'credits',
'debits',
]:
actionName = 'credit' if msg['category'] == 'credits' else 'debit'
address = msg_data['address']
asset_info = config.mongo_db.tracked_assets.find_one(
{'asset': msg_data['asset']})
if asset_info is None:
logger.warn(
"Credit/debit of %s where asset ('%s') does not exist. Ignoring..."
% (msg_data['quantity'], msg_data['asset']))
return 'ABORT_THIS_MESSAGE_PROCESSING'
quantity = msg_data['quantity'] if msg[
'category'] == 'credits' else -msg_data['quantity']
quantity_normalized = blockchain.normalize_quantity(
quantity, asset_info['divisible'])
# look up the previous balance to go off of
last_bal_change = config.mongo_db.balance_changes.find_one(
{
'address': address,
'asset': asset_info['asset']
},
sort=[("block_index", pymongo.DESCENDING),
("_id", pymongo.DESCENDING)])
if last_bal_change \
and last_bal_change['block_index'] == config.state['cur_block']['block_index']:
# modify this record, as we want at most one entry per block index for each (address, asset) pair
last_bal_change['quantity'] += quantity
last_bal_change['quantity_normalized'] += quantity_normalized
last_bal_change['new_balance'] += quantity
last_bal_change['new_balance_normalized'] += quantity_normalized
config.mongo_db.balance_changes.save(last_bal_change)
logger.info("%s (UPDATED) %s %s %s %s (new bal: %s, msgID: %s)" % (
actionName.capitalize(),
('%f' % last_bal_change['quantity_normalized']
).rstrip('0').rstrip('.'),
last_bal_change['asset'],
'from' if actionName == 'debit' else 'to',
last_bal_change['address'],
('%f' % last_bal_change['new_balance_normalized']
).rstrip('0').rstrip('.'),
msg['message_index'],
))
bal_change = last_bal_change
else: # new balance change record for this block
bal_change = {
'address':
address,
'asset':
asset_info['asset'],
'asset_longname':
asset_info['asset_longname'],
'block_index':
config.state['cur_block']['block_index'],
'block_time':
config.state['cur_block']['block_time_obj'],
'quantity':
quantity,
'quantity_normalized':
quantity_normalized,
'new_balance':
last_bal_change['new_balance'] +
quantity if last_bal_change else quantity,
'new_balance_normalized':
last_bal_change['new_balance_normalized'] + quantity_normalized
if last_bal_change else quantity_normalized,
}
config.mongo_db.balance_changes.insert(bal_change)
logger.info("%s %s %s %s %s (new bal: %s, msgID: %s)" % (
actionName.capitalize(),
('%f' %
bal_change['quantity_normalized']).rstrip('0').rstrip('.'),
bal_change['asset'],
'from' if actionName == 'debit' else 'to',
bal_change['address'],
('%f' %
bal_change['new_balance_normalized']).rstrip('0').rstrip('.'),
msg['message_index'],
))
def parse_issuance(msg, msg_data):
if msg['category'] != 'issuances':
return
if msg_data['status'] != 'valid':
return
cur_block_index = config.state['cur_block']['block_index']
cur_block = config.state['cur_block']
def modify_extended_asset_info(asset, description):
"""adds an asset to asset_extended_info collection if the description is a valid json link. or, if the link
is not a valid json link, will remove the asset entry from the table if it exists"""
if util.is_valid_url(description,
suffix='.json',
allow_no_protocol=True):
config.mongo_db.asset_extended_info.update(
{'asset': asset},
{
'$set': {
'info_url': description,
'info_status': 'needfetch',
'fetch_info_retry':
0, # retry ASSET_MAX_RETRY times to fetch info from info_url
'info_data': {},
'errors': []
}
},
upsert=True)
# ^ valid info_status settings: needfetch, valid, invalid, error
# additional fields will be added later in events, once the asset info is pulled
else:
config.mongo_db.asset_extended_info.remove({'asset': asset})
# remove any saved asset image data
imagePath = os.path.join(config.data_dir,
config.SUBDIR_ASSET_IMAGES,
asset + '.png')
if os.path.exists(imagePath):
os.remove(imagePath)
tracked_asset = config.mongo_db.tracked_assets.find_one(
{'asset': msg_data['asset']}, {
'_id': 0,
'_history': 0
})
# ^ pulls the tracked asset without the _id and history fields. This may be None
if msg_data['locked']: # lock asset
assert tracked_asset is not None
config.mongo_db.tracked_assets.update({'asset': msg_data['asset']}, {
"$set": {
'_at_block': cur_block_index,
'_at_block_time': cur_block['block_time_obj'],
'_change_type': 'locked',
'locked': True,
},
"$push": {
'_history': tracked_asset
}
},
upsert=False)
logger.info("Locking asset {}{}".format(
msg_data['asset'], ' ({})'.format(msg_data['asset_longname'])
if msg_data.get('asset_longname', None) else ''))
elif msg_data['transfer']: # transfer asset
assert tracked_asset is not None
config.mongo_db.tracked_assets.update({'asset': msg_data['asset']}, {
"$set": {
'_at_block': cur_block_index,
'_at_block_time': cur_block['block_time_obj'],
'_change_type': 'transferred',
'owner': msg_data['issuer'],
},
"$push": {
'_history': tracked_asset
}
},
upsert=False)
logger.info("Transferring asset {}{} to address {}".format(
msg_data['asset'],
' ({})'.format(msg_data['asset_longname']) if msg_data.get(
'asset_longname', None) else '', msg_data['issuer']))
elif msg_data[
'quantity'] == 0 and tracked_asset is not None: # change description
config.mongo_db.tracked_assets.update({'asset': msg_data['asset']}, {
"$set": {
'_at_block': cur_block_index,
'_at_block_time': cur_block['block_time_obj'],
'_change_type': 'changed_description',
'description': msg_data['description'],
},
"$push": {
'_history': tracked_asset
}
},
upsert=False)
modify_extended_asset_info(msg_data['asset'], msg_data['description'])
logger.info("Changing description for asset {}{} to '{}'".format(
msg_data['asset'],
' ({})'.format(msg_data['asset_longname']) if msg_data.get(
'asset_longname', None) else '', msg_data['description']))
else: # issue new asset or issue addition qty of an asset
if not tracked_asset: # new issuance
tracked_asset = {
'_change_type':
'created',
'_at_block':
cur_block_index, # the block ID this asset is current for
'_at_block_time':
cur_block['block_time_obj'],
# ^ NOTE: (if there are multiple asset tracked changes updates in a single block for the same
# asset, the last one with _at_block == that block id in the history array is the
# final version for that asset at that block
'asset':
msg_data['asset'],
'asset_longname':
msg_data.get(
'asset_longname', None
), # for subassets, this is the full subasset name of the asset, e.g. PIZZA.DOMINOSBLA
'owner':
msg_data['issuer'],
'description':
msg_data['description'],
'divisible':
msg_data['divisible'],
'locked':
False,
'total_issued':
int(msg_data['quantity']),
'total_issued_normalized':
blockchain.normalize_quantity(msg_data['quantity'],
msg_data['divisible']),
'_history': [] # to allow for block rollbacks
}
config.mongo_db.tracked_assets.insert(tracked_asset)
logger.info("Tracking new asset: {}{}".format(
msg_data['asset'], ' ({})'.format(msg_data['asset_longname'])
if msg_data.get('asset_longname', None) else ''))
modify_extended_asset_info(msg_data['asset'],
msg_data['description'])
else: # issuing additional of existing asset
assert tracked_asset is not None
config.mongo_db.tracked_assets.update(
{'asset': msg_data['asset']}, {
"$set": {
'_at_block': cur_block_index,
'_at_block_time': cur_block['block_time_obj'],
'_change_type': 'issued_more',
},
"$inc": {
'total_issued':
msg_data['quantity'],
'total_issued_normalized':
blockchain.normalize_quantity(msg_data['quantity'],
msg_data['divisible'])
},
"$push": {
'_history': tracked_asset
}
},
upsert=False)
logger.info("Adding additional {} quantity for asset {}{}".format(
blockchain.normalize_quantity(msg_data['quantity'],
msg_data['divisible']),
msg_data['asset'], ' ({})'.format(msg_data['asset_longname'])
if msg_data.get('asset_longname', None) else ''))
return True
def get_normalized_balances(addresses):
"""
This call augments aspire's get_balances with a normalized_quantity field. It also will include any owned
assets for an address, even if their balance is zero.
NOTE: Does not retrieve GASP balance. Use get_address_info for that.
"""
if not isinstance(addresses, list):
raise Exception(
"addresses must be a list of addresses, even if it just contains one address"
)
if not len(addresses):
raise Exception("Invalid address list supplied")
filters = []
for address in addresses:
filters.append({'field': 'address', 'op': '==', 'value': address})
mappings = {}
result = util.call_jsonrpc_api("get_balances", {
'filters': filters,
'filterop': 'or'
},
abort_on_error=True)['result']
isowner = {}
owned_assets = config.mongo_db.tracked_assets.find(
{'$or': [{
'owner': a
} for a in addresses]}, {
'_history': 0,
'_id': 0
})
for o in owned_assets:
isowner[o['owner'] + o['asset']] = o
data = []
for d in result:
if not d['quantity'] and ((d['address'] + d['asset']) not in isowner):
continue # don't include balances with a zero asset value
asset_info = config.mongo_db.tracked_assets.find_one(
{'asset': d['asset']})
divisible = True # ASP and GASP
if asset_info and 'divisible' in asset_info:
divisible = asset_info['divisible']
d['normalized_quantity'] = blockchain.normalize_quantity(
d['quantity'], divisible)
d['owner'] = (d['address'] + d['asset']) in isowner
d['asset_longname'] = asset_info['asset_longname']
mappings[d['address'] + d['asset']] = d
data.append(d)
# include any owned assets for each address, even if their balance is zero
for key in isowner:
if key not in mappings:
o = isowner[key]
data.append({
'address': o['owner'],
'asset': o['asset'],
'quantity': 0,
'normalized_quantity': 0,
'owner': True,
})
return data
