def runAsync():
index = 0
while index < len(config.nodes):
crawlerSeed = config.nodes[index]
sourceEndpoint = NodeEndpoint.from_parameters('http', crawlerSeed,
7890)
crawler = NetworkCrawler(config.network == 'testnet')
try:
d = yield from crawler.crawl(sourceEndpoint)
except Exception as e:
print("MAIN Exception: {0}".format(e))
crawler.reset()
result = getResults(crawler.counter.values())
end = datetime.utcnow()
index += 1
if not result:
continue
with open('nodes_dump-' + config.network + '.json', 'w') as output:
output.write(
json.dumps({
'nodes_last_time': end,
'active_nodes': result
}))
break
def runAsync():
sourceEndpoint = NodeEndpoint.from_parameters('http', config.crawlerSeed, 7890)
crawler = NetworkCrawler(config.network == 'testnet')
if True:
d = yield from crawler.crawl(sourceEndpoint)
crawler.reset()
result = getResults(crawler.counter.values())
end = datetime.utcnow()
with open('nodes_dump-'+config.network+'.json', 'w') as output:
output.write(json.dumps({'nodes_last_time':end, 'active_nodes':result}))
def crawl(self, endpoint):
endpointUrl = endpoint.url()
if endpointUrl in self.allNodes and endpointUrl in self.allInfo:
return
if not endpointUrl in self.allInfo:
#print('getting info {0}'.format(endpointUrl))
self.allInfo[endpointUrl] = True
try:
response = yield from asyncio.wait_for(aiohttp.request('GET', '{0}/node/extended-info'.format(endpointUrl)), 2)
info = yield from response.json()
version = info['node']['metaData']['version']
network = info['node']['metaData']['networkId']
if (self.isTest and network == -104) or (not self.isTest and network != -104):
self.allInfo[endpointUrl] = info
response = yield from asyncio.wait_for(aiohttp.request('GET', '{0}/chain/height'.format(endpointUrl)), 2)
info = yield from response.json()
self.allInfo[endpointUrl]['node']['metaData']['height'] = info['height']
yield from asyncio.wait([self.crawl(endpoint)], return_when=ALL_COMPLETED)
except aiohttp.errors.ClientOSError as err:
print('error detected:', str(err))
except aiohttp.errors.ServerDisconnectedError as err:
print('error detected:', str(err))
except Exception as e:
#print("Exceptionxxxx:", str(e))
pass
if not endpointUrl in self.allNodes:
#print('processing {0}'.format(endpointUrl))
self.allNodes[endpointUrl] = True
try:
response = yield from asyncio.wait_for(aiohttp.request('GET', '{0}/node/peer-list/active'.format(endpoint.url())), 2)
peers = yield from response.json()
futures = []
for peer in peers['data']:
peer_endpoint = NodeEndpoint.from_json(peer['endpoint'])
futures.append(self.crawl(peer_endpoint))
yield from asyncio.wait(futures, return_when=ALL_COMPLETED)
except aiohttp.errors.ClientOSError as err:
print('error detected:', str(err))
except aiohttp.errors.ServerDisconnectedError as err:
print('error detected:', str(err))
except Exception as e:
#print("Exceptionxxxx:", str(e))
pass
def getNodes(self, endpoint, attempt):
endpointUrl = endpoint.url()
if endpointUrl in self.allNodes:
#if attempt == 1:
return
self.allNodes[endpointUrl] = True
try:
response = yield from asyncio.wait_for(
aiohttp.request(
'GET', '{0}/node/peer-list/all'.format(endpoint.url())),
10 * attempt)
peers = yield from response.json()
futures = []
for peer in peers['active']:
peer_endpoint = NodeEndpoint.from_json(peer['endpoint'])
if peer_endpoint.url() not in self.allFutures:
#print(peer_endpoint.url())
self.allFutures[peer_endpoint.url()] = True
futures.append(self.crawl(peer_endpoint))
#print('yield, added', len(futures), len(self.allFutures))
if futures:
yield from asyncio.wait(futures, return_when=ALL_COMPLETED)
except aiohttp.errors.ClientOSError as err:
logging.warning('peerList, error detected: {0} {1}'.format(
endpointUrl, str(err)))
except aiohttp.errors.ServerDisconnectedError as err:
logging.warning('peerList, error detected: {0} {1}'.format(
endpointUrl, str(err)))
except asyncio.TimeoutError as err:
# retry two times and log if fail
if attempt <= 0:
yield from asyncio.wait([self.getNodes(endpoint, attempt + 1)],
return_when=ALL_COMPLETED)
else:
logging.warning(
'peerList, timeout attempt {2}: {0} {1}'.format(
endpointUrl, str(err), attempt))
except Exception as err:
logging.warning('peerList, exception: {0} {1}'.format(
endpointUrl, str(err)))
