def api_service_node_stats():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
stakinginfo = FutureJSON(lmq, oxend, 'rpc.get_staking_requirement', 30)
sns = get_sns_future(lmq, oxend)
sns = sns.get()
if 'service_node_states' not in sns:
return flask.jsonify({"status": "Error retrieving SN stats"}), 500
sns = sns['service_node_states']
stats = {'active': 0, 'funded': 0, 'awaiting_contribution': 0, 'decommissioned': 0, 'staked': 0}
for sn in sns:
if sn['funded']:
stats['funded'] += 1
if sn['active']:
stats['active'] += 1
else:
stats['decommissioned'] += 1
else:
stats['awaiting_contribution'] += 1
stats['staked'] += sn['total_contributed']
stats['staked'] /= 1_000_000_000
stats['sn_reward'] = 16.5
stats['sn_reward_interval'] = stats['active']
stakinginfo = stakinginfo.get()
stats['sn_staking_requirement_full'] = stakinginfo['staking_requirement'] / 1_000_000_000
stats['sn_staking_requirement_min'] = stats['sn_staking_requirement_full'] / 4
info = info.get()
stats['height'] = info['height']
return flask.jsonify({"data": stats, "status": "OK"})
def show_sn(pubkey):
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
hfinfo = FutureJSON(lmq, oxend, 'rpc.hard_fork_info', 10)
sn = sn_req(lmq, oxend, pubkey).get()
if 'service_node_states' not in sn or not sn['service_node_states']:
return flask.render_template(
'not_found.html',
info=info.get(),
type='sn',
id=pubkey,
)
sn = sn['service_node_states'][0]
# These are a bit non-trivial to properly calculate:
# Number of staked contributions
sn['num_contributions'] = sum(
len(x["locked_contributions"]) for x in sn["contributors"]
if "locked_contributions" in x)
# Number of unfilled, reserved contribution spots:
sn['num_reserved_spots'] = sum(x["amount"] < x["reserved"]
for x in sn["contributors"])
# Available open contribution spots:
sn['num_open_spots'] = 0 if sn['total_reserved'] >= sn[
'staking_requirement'] else max(
0, 4 - sn['num_contributions'] - sn['num_reserved_spots'])
return flask.render_template(
'sn.html',
info=info.get(),
hf=hfinfo.get(),
sn=sn,
)
def show_quorums():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
quos = get_quorums_future(lmq, oxend, info.get()['height'])
return flask.render_template('quorums.html',
info=info.get(),
quorums=get_quorums(quos))
def api_networkinfo():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
hfinfo = FutureJSON(lmq, oxend, 'rpc.hard_fork_info', 10)
info = info.get()
data = {**info}
hfinfo = hfinfo.get()
data['current_hf_version'] = hfinfo['version']
data['next_hf_height'] = hfinfo['earliest_height'] if 'earliest_height' in hfinfo else None
return flask.jsonify({"data": data, "status": "OK"})
def show_block(height=None, hash=None, more_details=False):
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
hfinfo = FutureJSON(lmq, oxend, 'rpc.hard_fork_info', 10)
if height is not None:
val = height
elif hash is not None:
val = hash
block = None if val is None else block_with_txs_req(lmq, oxend, val).get()
if block is None:
return flask.render_template("not_found.html",
info=info.get(),
hfinfo=hfinfo.get(),
type='block',
height=height,
id=hash)
next_block = None
block_height = block['block_header']['height']
txs = get_block_txs_future(lmq, oxend, block)
if info.get()['height'] > 1 + block_height:
next_block = block_header_req(lmq, oxend,
'{}'.format(block_height + 1))
if more_details:
formatter = HtmlFormatter(cssclass="syntax-highlight", style="native")
more_details = {
'details_css':
formatter.get_style_defs('.syntax-highlight'),
'details_html':
highlight(json.dumps(block, indent="\t", sort_keys=True),
JsonLexer(), formatter),
}
else:
more_details = {}
transactions = [] if txs is None else parse_txs(txs.get()).copy()
miner_tx = transactions.pop() if transactions else []
return flask.render_template(
"block.html",
info=info.get(),
hfinfo=hfinfo.get(),
block_header=block['block_header'],
block=block,
miner_tx=miner_tx,
transactions=transactions,
next_block=next_block.get() if next_block else None,
**more_details,
)
def api_emission():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
coinbase = FutureJSON(lmq,
oxend,
'admin.get_coinbase_tx_sum',
10,
timeout=1,
fail_okay=True,
args={
"height": 0,
"count": 2**31 - 1
}).get()
if not coinbase:
return flask.jsonify(None)
info = info.get()
return flask.jsonify({
"data": {
"blk_no":
info['height'] - 1,
"burn":
coinbase["burn_amount"],
"circulating_supply":
coinbase["emission_amount"] - coinbase["burn_amount"],
"coinbase":
coinbase["emission_amount"] - coinbase["burn_amount"],
"emission":
coinbase["emission_amount"],
"fee":
coinbase["fee_amount"]
},
"status": "success"
})
def mempool():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
mempool = get_mempool_future(lmq, oxend)
return flask.render_template('mempool.html',
info=info.get(),
mempool=parse_mempool(mempool),
)
def search():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
val = (flask.request.args.get('value') or '').strip()
if val and len(val) < 10 and val.isdigit(): # Block height
return flask.redirect(flask.url_for('show_block', height=val), code=301)
if val and len(val) == 58 and val.endswith(".snode") and val[51] in 'yoYO' and all(c in base32z_dict for c in val[0:52].lower()):
v, bits = 0, 0
for x in val[0:52].lower():
v = (v << 5) | base32z_map[x] # Arbitrary precision integers hurray!
# The above loads 260 bytes (5 bits per char * 52 chars), but we only want 256:
v >>= 4
val = "{:64x}".format(v)
elif not val or len(val) != 64 or any(c not in string.hexdigits for c in val):
return flask.render_template('not_found.html',
info=info.get(),
type='bad_search',
id=val,
)
# Initiate all the lookups at once, then redirect to whichever one responds affirmatively
snreq = sn_req(lmq, oxend, val)
blreq = block_header_req(lmq, oxend, val, fail_okay=True)
txreq = tx_req(lmq, oxend, [val])
sn = snreq.get()
if sn and 'service_node_states' in sn and sn['service_node_states']:
return flask.redirect(flask.url_for('show_sn', pubkey=val), code=301)
bl = blreq.get()
if bl and 'block_header' in bl and bl['block_header']:
return flask.redirect(flask.url_for('show_block', hash=val), code=301)
tx = txreq.get()
if tx and 'txs' in tx and tx['txs']:
return flask.redirect(flask.url_for('show_tx', txid=val), code=301)
return flask.render_template('not_found.html',
info=info.get(),
type='search',
id=val,
)
def sns():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
awaiting, active, inactive = get_sns(get_sns_future(lmq, oxend), info)
return flask.render_template('service_nodes.html',
info=info.get(),
active_sns=active,
awaiting_sns=awaiting,
inactive_sns=inactive,
)
def search():
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
val = (flask.request.args.get('value') or '').strip()
if val and len(val) < 10 and val.isdigit(): # Block height
return flask.redirect(flask.url_for('show_block', height=val),
code=301)
if not val or len(val) != 64 or any(c not in string.hexdigits
for c in val):
return flask.render_template(
'not_found.html',
info=info.get(),
type='bad_search',
id=val,
)
# Initiate all the lookups at once, then redirect to whichever one responds affirmatively
snreq = sn_req(lmq, oxend, val)
blreq = block_header_req(lmq, oxend, val, fail_okay=True)
txreq = tx_req(lmq, oxend, [val])
sn = snreq.get()
if 'service_node_states' in sn and sn['service_node_states']:
return flask.redirect(flask.url_for('show_sn', pubkey=val), code=301)
bl = blreq.get()
if bl and 'block_header' in bl and bl['block_header']:
return flask.redirect(flask.url_for('show_block', hash=val), code=301)
tx = txreq.get()
if tx and 'txs' in tx and tx['txs']:
return flask.redirect(flask.url_for('show_tx', txid=val), code=301)
return flask.render_template(
'not_found.html',
info=info.get(),
type='search',
id=val,
)
def show_tx(txid, more_details=False):
lmq, oxend = lmq_connection()
info = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
txs = tx_req(lmq, oxend, [txid]).get()
if 'txs' not in txs or not txs['txs']:
return flask.render_template(
'not_found.html',
info=info.get(),
type='tx',
id=txid,
)
tx = parse_txs(txs)[0]
# If this is a state change, see if we have the quorum stored to provide context
testing_quorum = None
if tx['info']['version'] >= 4 and 'sn_state_change' in tx['extra']:
testing_quorum = FutureJSON(
lmq,
oxend,
'rpc.get_quorum_state',
60,
cache_key='tx_state_change',
args={
'quorum_type': 0,
'start_height': tx['extra']['sn_state_change']['height']
})
kindex_info = {} # { amount => { keyindex => {output-info} } }
block_info_req = None
if 'vin' in tx['info']:
if len(tx['info']['vin']) == 1 and 'gen' in tx['info']['vin'][0]:
tx['coinbase'] = True
elif tx['info']['vin'] and config.enable_mixins_details:
# Load output details for all outputs contained in the inputs
outs_req = []
for inp in tx['info']['vin']:
# Key positions are stored as offsets from the previous index rather than indices,
# so de-delta them back into indices:
if 'key_offsets' in inp['key'] and 'key_indices' not in inp[
'key']:
kis = []
inp['key']['key_indices'] = kis
kbase = 0
for koff in inp['key']['key_offsets']:
kbase += koff
kis.append(kbase)
del inp['key']['key_offsets']
outs_req = [{
"amount": inp['key']['amount'],
"index": ki
} for inp in tx['info']['vin'] for ki in inp['key']['key_indices']]
outputs = FutureJSON(lmq,
oxend,
'rpc.get_outs',
args={
'get_txid': True,
'outputs': outs_req,
}).get()
if outputs and 'outs' in outputs and len(
outputs['outs']) == len(outs_req):
outputs = outputs['outs']
# Also load block details for all of those outputs:
block_info_req = FutureJSON(
lmq,
oxend,
'rpc.get_block_header_by_height',
args={'heights': [o["height"] for o in outputs]})
i = 0
for inp in tx['info']['vin']:
amount = inp['key']['amount']
if amount not in kindex_info:
kindex_info[amount] = {}
ki = kindex_info[amount]
for ko in inp['key']['key_indices']:
ki[ko] = outputs[i]
i += 1
if more_details:
formatter = HtmlFormatter(cssclass="syntax-highlight",
style="paraiso-dark")
more_details = {
'details_css':
formatter.get_style_defs('.syntax-highlight'),
'details_html':
highlight(json.dumps(tx, indent="\t", sort_keys=True), JsonLexer(),
formatter),
}
else:
more_details = {}
block_info = {} # { height => {block-info} }
if block_info_req:
bi = block_info_req.get()
if 'block_headers' in bi:
for bh in bi['block_headers']:
block_info[bh['height']] = bh
if testing_quorum:
testing_quorum = testing_quorum.get()
if testing_quorum:
if 'quorums' in testing_quorum and testing_quorum['quorums']:
testing_quorum = testing_quorum['quorums'][0]['quorum']
else:
testing_quorum = None
return flask.render_template(
'tx.html',
info=info.get(),
tx=tx,
kindex_info=kindex_info,
block_info=block_info,
testing_quorum=testing_quorum,
**more_details,
)
def main(refresh=None, page=0, per_page=None, first=None, last=None):
lmq, oxend = lmq_connection()
inforeq = FutureJSON(lmq, oxend, 'rpc.get_info', 1)
stake = FutureJSON(lmq, oxend, 'rpc.get_staking_requirement', 10)
base_fee = FutureJSON(lmq, oxend, 'rpc.get_fee_estimate', 10)
hfinfo = FutureJSON(lmq, oxend, 'rpc.hard_fork_info', 10)
mempool = get_mempool_future(lmq, oxend)
sns = get_sns_future(lmq, oxend)
checkpoints = FutureJSON(lmq,
oxend,
'rpc.get_checkpoints',
args={"count": 3})
# This call is slow the first time it gets called in oxend but will be fast after that, so call
# it with a very short timeout. It's also an admin-only command, so will always fail if we're
# using a restricted RPC interface.
coinbase = FutureJSON(lmq,
oxend,
'admin.get_coinbase_tx_sum',
10,
timeout=1,
fail_okay=True,
args={
"height": 0,
"count": 2**31 - 1
})
custom_per_page = ''
if per_page is None or per_page <= 0 or per_page > config.max_blocks_per_page:
per_page = config.blocks_per_page
else:
custom_per_page = '/{}'.format(per_page)
# We have some chained request dependencies here and below, so get() them as needed; all other
# non-dependent requests should already have a future initiated above so that they can
# potentially run in parallel.
info = inforeq.get()
height = info['height']
# Permalinked block range:
if first is not None and last is not None and 0 <= first <= last and last <= first + 99:
start_height, end_height = first, last
if end_height - start_height + 1 != per_page:
per_page = end_height - start_height + 1
custom_per_page = '/{}'.format(per_page)
# We generally can't get a perfect page number because our range (e.g. 5-14) won't line up
# with pages (e.g. 10-19, 0-19), so just get as close as we can. Next/Prev page won't be
# quite right, but they'll be within half a page.
page = round((height - 1 - end_height) / per_page)
else:
end_height = max(0, height - per_page * page - 1)
start_height = max(0, end_height - per_page + 1)
blocks = FutureJSON(lmq,
oxend,
'rpc.get_block_headers_range',
cache_key='main',
args={
'start_height': start_height,
'end_height': end_height,
'get_tx_hashes': True,
}).get()['headers']
# If 'txs' is already there then it is probably left over from our cached previous call through
# here.
if blocks and 'txs' not in blocks[0]:
txids = []
for b in blocks:
b['txs'] = []
txids.append(b['miner_tx_hash'])
if 'tx_hashes' in b:
txids += b['tx_hashes']
txs = parse_txs(tx_req(lmq, oxend, txids, cache_key='mempool').get())
i = 0
for tx in txs:
# TXs should come back in the same order so we can just skip ahead one when the block
# height changes rather than needing to search for the block
if blocks[i]['height'] != tx['block_height']:
i += 1
while i < len(
blocks) and blocks[i]['height'] != tx['block_height']:
print("Something getting wrong: missing txes?",
file=sys.stderr)
i += 1
if i >= len(blocks):
print("Something getting wrong: have leftover txes")
break
blocks[i]['txs'].append(tx)
# Clean up the SN data a bit to make things easier for the templates
awaiting_sns, active_sns, inactive_sns = get_sns(sns, inforeq)
return flask.render_template(
'index.html',
info=info,
stake=stake.get(),
fees=base_fee.get(),
emission=coinbase.get(),
hf=hfinfo.get(),
active_sns=active_sns,
inactive_sns=inactive_sns,
awaiting_sns=awaiting_sns,
blocks=blocks,
block_size_median=statistics.median(b['block_size'] for b in blocks),
page=page,
per_page=per_page,
custom_per_page=custom_per_page,
mempool=parse_mempool(mempool),
checkpoints=checkpoints.get(),
refresh=refresh,
)