def make_request(self, method, params, packet_type=ChannelPack.TYPE_RPC,
response_type=ChannelPack.TYPE_RPC):
rpc_data = self.encode_rpc_request(method, params)
self.logger.debug("request rpc_data : {}".format(rpc_data))
seq = ChannelPack.make_seq32()
request_pack = ChannelPack(packet_type, seq, 0, rpc_data)
self.send_pack(request_pack)
onresponse_emitter_str = ChannelHandler.getEmitterStr(self.onResponsePrefix,
seq, response_type)
# register onResponse emitter
self.lock.acquire()
self.callbackEmitter.on(onresponse_emitter_str, self.onResponse)
self.lock.release()
self.requests.append(onresponse_emitter_str)
emitter_str = ChannelHandler.getEmitterStr(self.getResultPrefix,
seq, response_type)
def resolve_promise(resolve, reject):
"""
resolve promise
"""
# register getResult emitter
self.lock.acquire()
self.callbackEmitter.on(emitter_str, (lambda result, is_error: resolve(
result) if is_error is False else reject(result)))
self.lock.release()
p = Promise(resolve_promise)
return p.get()
def check_heatbeat(self):
if time.time() - self.lastheatbeattime < self.heatbeatStamp:
return
pack = ChannelPack(ChannelPack.TYPE_HEATBEAT,
ChannelPack.make_seq32(), 0, bytes("", "utf-8"))
self.sendpack(pack)
self.lastheatbeattime = time.time()
def send_hello(self, ):
# 与服务端建立socket连接
with socket.create_connection((host, port)) as sock:
#sock.send(bytes(testreq,"utf-8") )
# print("sent",testreq)
#reply = sock.recv(4096)
# print(reply)
# 将socket打包成SSL socket
print("connect {}:{},as socket {}".format(host, port, sock))
with context.wrap_socket(sock) as ssock:
print(ssock)
# 向服务端发送信息
buffer = ChannelPack.pack_all(ChannelPack.TYPE_RPC, testreq)
ssock.send(buffer)
# 接收服务端返回的信息
responsePack = None
respbuffer = bytearray()
for i in [0, 3]:
msg = ssock.recv(1024 * 10)
respbuffer += msg
(code, len,
responsePack) = ChannelPack.unpack(bytes(respbuffer))
i += 1
if code != 0:
continue
if len > 0:
respbuffer = respbuffer[len:]
if code == 0:
break
print(responsePack.result, responsePack.data)
ssock.close()
def register_event_callback(addresses, event_name, indexed_value):
topics = []
topic0 = parser.topic_from_event_name(event_name)
topics.append(topic0)
event_abi = parser.event_name_map[event_name]
print("event abi:", event_abi)
if len(indexed_value) > 0:
indexedinput = []
for input in event_abi["inputs"]:
if input["indexed"] is True:
indexedinput.append((input['name'], input['type']))
print(indexedinput)
i = 0
for v in indexed_value:
itype = indexedinput[i][1]
topic = DatatypeParser.topic_from_type(itype, v)
if not (topic is None):
topics.append(topic)
i = i + 1
requestJson = format_event_register_request("latest", "latest", addresses,
topics)
requestbytes = ChannelPack.pack_amop_topic_message("", requestJson)
client.channel_handler.pushDispacher.add_handler(
ChannelPack.EVENT_LOG_PUSH, eventHandler01)
client.channel_handler.pushDispacher.add_handler(
ChannelPack.EVENT_LOG_PUSH, eventHandler02)
response = client.channel_handler.make_channel_request(
requestbytes, ChannelPack.CLIENT_REGISTER_EVENT_LOG,
ChannelPack.CLIENT_REGISTER_EVENT_LOG)
(topic, result) = ChannelPack.unpack_amop_topic_message(response)
dataobj = json.loads(result)
print("after register ,event_name:{},topic:{},result:{}".format(
event_name, topic, dataobj['result']))
def make_channel_request(self, data, packet_type, response_type=None):
seq = ChannelPack.make_seq32()
request_pack = ChannelPack(packet_type, seq, 0, data)
self.send_pack(request_pack)
onresponse_emitter_str = ChannelHandler.getEmitterStr(
self.onResponsePrefix, seq, response_type)
# register onResponse emitter
self.lock.acquire()
self.callbackEmitter.on(onresponse_emitter_str, self.onResponse)
self.lock.release()
self.requests.append(onresponse_emitter_str)
# register onResponse emitter of RPC
rpc_onresponse_emitter_str = None
rpc_result_emitter_str = None
if response_type is ChannelPack.TYPE_TX_COMMITTED \
or response_type is ChannelPack.CLIENT_REGISTER_EVENT_LOG:
rpc_onresponse_emitter_str = ChannelHandler.getEmitterStr(
self.onResponsePrefix, seq, packet_type)
self.requests.append(rpc_onresponse_emitter_str)
rpc_result_emitter_str = ChannelHandler.getEmitterStr(
self.getResultPrefix, seq, packet_type)
self.lock.acquire()
self.callbackEmitter.on(rpc_onresponse_emitter_str,
self.onResponse)
self.lock.release()
emitter_str = ChannelHandler.getEmitterStr(self.getResultPrefix, seq,
response_type)
def resolve_promise(resolve, reject):
"""
resolve promise
"""
# register getResult emitter
self.lock.acquire()
self.callbackEmitter.on(emitter_str,
(lambda result, is_error: resolve(result)))
# 1. if send transaction failed, return the error message directly
# and erase the registered 0x1002 emitter
# 2. if send transaction success, remove the registered 0x12 emitter
if rpc_result_emitter_str is not None:
self.callbackEmitter.on(
rpc_result_emitter_str,
(lambda result, is_error: resolve(result) and self.requests
.remove(onresponse_emitter_str) if is_error is True else
self.requests.remove(rpc_onresponse_emitter_str) if self.
requests.count(rpc_onresponse_emitter_str) else None))
self.lock.release()
p = Promise(resolve_promise)
# default timeout is 60s
return p.get(60)
def getBlockNumber(self, groupId):
"""
get block number notify
"""
block_notify_emitter = ChannelHandler.getEmitterStr(self.onResponsePrefix,
ChannelPack.get_seq_zero(),
ChannelPack.TYPE_TX_BLOCKNUM)
self.callbackEmitter.on(block_notify_emitter, self.onResponse)
self.logger.debug("block notify emitter: {}".format(block_notify_emitter))
self.requests.append(block_notify_emitter)
seq = ChannelPack.make_seq32()
topic = json.dumps(["_block_notify_{}".format(groupId)])
request_pack = ChannelPack(ChannelPack.TYPE_TOPIC_REPORT, seq, 0, topic)
self.send_pack(request_pack)
def make_request(self, method, params, type=ChannelPack.TYPE_RPC):
stat = StatTool.begin()
rpc_data = self.encode_rpc_request(method,params)
self.logger.debug("request rpc_data : {}".format(rpc_data) )
#print("request rpc_data", rpc_data)
request_pack = ChannelPack(type,ChannelPack.make_seq32(), 0,rpc_data)
res = self.send_pack(request_pack)
starttime = time.time()
responsematch = False
while time.time() - starttime < 10: # spend max 10 sec to wait a correct response
try:
theQueue = self.recvThread.getQueue(ChannelPack.TYPE_RPC)
responsepack = theQueue.get(block=True, timeout=3) # pop msg from queue
except Empty as e:
continue
#print("got a pack from queue, detail:{}".format(responsepack.detail()))
self.logger.debug("got a pack from queue, detail:{}".format(responsepack.detail()))
if responsepack.type == ChannelPack.TYPE_RPC and responsepack.seq == request_pack.seq:
responsematch = True
break
else:
#print("*******SKIP!!!! pack ", responsepack.detail())
self.logger.debug("*******SKIP!!!! pack {}".format( responsepack.detail() ))
responsepack = None
continue
if responsematch == False:
raise BcosError(102,None,"timeout")
result = responsepack.result
data = responsepack.data.decode("utf-8")
msg = "success"
if(result!=0):
if result in self.errorMsg:
msg = "unknow error %d"%result
msg = self.errorMsg[result]
raise BcosError(result,msg)
response = FriendlyJsonSerde().json_decode(data)
stat.done()
stat.debug("make_request:{}".format(method) )
self.logger.debug("GetResponse. %s, Response: %s",
method, response)
#print("response from server:",response)
self.logger.debug("response from server: {}".format( response) )
if "result" not in response:
tempresp =dict()
tempresp["result"] = response
response =tempresp
return response
def read_channel(self):
# 接收服务端返回的信息
try:
self.logger.debug("{} channelHandler.ssock.recv begin.".format(
self.name))
msg = self.channelHandler.ssock.recv(1024 * 1024 * 10)
self.logger.debug("channelHandler.ssock.recv len:{}".format(
len(msg)))
if msg is None:
return -1
if len(msg) == 0:
return 0
except Exception as e:
self.logger.error("{}:ssock read error {}".format(self.name, e))
return -1
self.respbuffer += msg
# if no enough data even for header ,continue to read
if len(self.respbuffer) < ChannelPack.getheaderlen():
return len(msg)
code = 0
# decode all packs in buffer from node,maybe got N packs on one read
# -1 means no enough bytes for decode, should break to continue read and wait
while code != -1:
(code, decodelen,
responsePack) = ChannelPack.unpack(bytes(self.respbuffer))
# print("respbuffer:",self.respbuffer)
if decodelen > 0:
# cut the buffer from last decode pos
self.respbuffer = self.respbuffer[decodelen:]
if code != -1 and responsePack is not None: # got a pack
# print("get a pack from node, put to queue {}".format(responsePack.detail()))
self.logger.debug(
"{}:pack from node, put queue(qsize{}),detail {}".format(
self.name, self.recvQueue.qsize(),
responsePack.detail()))
if self.recvQueue.full():
self.recvQueue.get(
) # if queue full ,pop the head item ,!! the item LOST
self.logger.error(
"{}:queue {} FULL pop and LOST: {}".format(
self.name, responsePack.type,
responsePack.detail()))
self.recvQueue.put(responsePack)
# self.print_queue()
return len(msg)
def on_push(self, packmsg: ChannelPack):
print("EventPushHandler", packmsg.detail())
strmsg = packmsg.data.decode("utf-8")
response = json.loads(strmsg)
print("response filterID:", response['filterID'])
#print("response:", json.dumps(response,indent=4))
loglist = parser.parse_event_logs(response["logs"])
print(json.dumps(loglist, indent=4))
def on_push(self, packmsg: ChannelPack):
print(">>>>>>>>>>>>>>>>>>EventPushHandler02", packmsg.detail())
strmsg = packmsg.data.decode("utf-8")
response = json.loads(strmsg)
loglist = parser.parse_event_logs(response["logs"])
print("FilterID ", response["filterID"])
print(">>>>>>>>>>>>>>>>>>EventPushHandler02",
json.dumps(loglist, indent=4))
def register_eventlog_filter(
self,
eventcallback,
abiparser,
addresses,
event_name,
indexed_value=None,
fromblock="latest",
to_block="latest"):
topics = []
if event_name is not None:
topic0 = abiparser.topic_from_event_name(event_name)
topics.append(topic0)
event_abi = abiparser.event_name_map[event_name]
#print("event abi:", event_abi)
if indexed_value is not None and len(indexed_value) > 0:
indexedinput = []
for event_input in event_abi["inputs"]:
if event_input["indexed"] is True:
indexedinput.append((event_input['name'], event_input['type']))
# print(indexedinput)
i = 0
for v in indexed_value:
itype = indexedinput[i][1]
topic = DatatypeParser.topic_from_type(itype, v)
if not (topic is None):
topics.append(topic)
i = i + 1
# create new filterid by uuid
seq = uuid.uuid1()
filterid = seq.hex
requestJson = self.format_event_register_request(
fromblock, to_block, addresses, topics, self.client.groupid, filterid)
requestbytes = ChannelPack.pack_amop_topic_message("", requestJson)
response = self.client.channel_handler.make_channel_request(
requestbytes, ChannelPack.CLIENT_REGISTER_EVENT_LOG, ChannelPack.CLIENT_REGISTER_EVENT_LOG)
(topic, result) = ChannelPack.unpack_amop_topic_message(response)
dataobj = json.loads(result)
# print(dataobj)
if dataobj["result"] == 0:
self.ecb_manager.set_callback(filterid, eventcallback)
return dataobj
from client.channelpack import ChannelPack
from eth_utils import encode_hex
import json
seq = b"123456789012345678900123456789012"
data = "{\"jsonrpc\":\"2.0\",\"method\":\"getClientVersion\",\"params\":[],\"id\":1}"
json.loads(data)
print("datalen ", len(data))
pack = ChannelPack(0x12, seq, 0, data)
packres = pack.pack()
print(encode_hex(packres))
aa = []
b = dict()
aa.append({"test", 1})
aa.append({"test", 2})
print(b)
print(json.dumps(b))