Files
pyasic/API/__init__.py

208 lines
7.4 KiB
Python

import asyncio
import json
import ipaddress
import warnings
import logging
class APIError(Exception):
def __init__(self, *args):
if args:
self.message = args[0]
else:
self.message = None
def __str__(self):
if self.message:
return f"{self.message}"
else:
return "Incorrect API parameters."
class APIWarning(Warning):
def __init__(self, *args):
if args:
self.message = args[0]
else:
self.message = None
def __str__(self):
if self.message:
return f"{self.message}"
else:
return "Incorrect API parameters."
class BaseMinerAPI:
def __init__(self, ip: str, port: int = 4028) -> None:
# api port, should be 4028
self.port = port
# ip address of the miner
self.ip = ipaddress.ip_address(ip)
def get_commands(self) -> list:
"""Get a list of command accessible to a specific type of API on the miner."""
return [
func
for func in
# each function in self
dir(self)
if callable(getattr(self, func)) and
# no __ methods
not func.startswith("__") and
# remove all functions that are in this base class
func
not in [
func
for func in dir(BaseMinerAPI)
if callable(getattr(BaseMinerAPI, func))
]
]
async def multicommand(
self, *commands: str, ignore_x19_error: bool = False
) -> dict:
"""Creates and sends multiple commands as one command to the miner."""
logging.debug(f"{self.ip}: Sending multicommand: {[*commands]}")
# split the commands into a proper list
user_commands = [*commands]
allowed_commands = self.get_commands()
# make sure we can actually run the command, otherwise it will fail
commands = [command for command in user_commands if command in allowed_commands]
for item in list(set(user_commands) - set(commands)):
warnings.warn(
f"""Removing incorrect command: {item}
If you are sure you want to use this command please use API.send_command("{item}", ignore_errors=True) instead.""",
APIWarning,
)
# standard multicommand format is "command1+command2"
# doesnt work for S19 which is dealt with in the send command function
command = "+".join(commands)
data = None
try:
data = await self.send_command(command, x19_command=ignore_x19_error)
except APIError:
try:
data = {}
# S19 handler, try again
for cmd in command.split("+"):
data[cmd] = []
data[cmd].append(await self.send_command(cmd))
except APIError as e:
raise APIError(e)
except Exception as e:
logging.warning(f"{self.ip}: API Multicommand Error: {e}")
if data:
logging.debug(f"{self.ip}: Received multicommand data.")
return data
async def send_command(
self,
command: str or bytes,
parameters: str or int or bool = None,
ignore_errors: bool = False,
x19_command: bool = False,
) -> dict:
"""Send an API command to the miner and return the result."""
try:
# get reader and writer streams
reader, writer = await asyncio.open_connection(str(self.ip), self.port)
# handle OSError 121
except OSError as e:
if e.winerror == "121":
logging.warning("Semaphore Timeout has Expired.")
return {}
# create the command
cmd = {"command": command}
if parameters is not None:
cmd["parameter"] = parameters
# send the command
writer.write(json.dumps(cmd).encode("utf-8"))
await writer.drain()
# instantiate data
data = b""
# loop to receive all the data
try:
while True:
d = await reader.read(4096)
if not d:
break
data += d
except Exception as e:
logging.warning(f"{self.ip}: API Command Error: {e}")
data = self.load_api_data(data)
# close the connection
writer.close()
await writer.wait_closed()
# check for if the user wants to allow errors to return
if not ignore_errors:
# validate the command succeeded
validation = self.validate_command_output(data)
if not validation[0]:
if not x19_command:
logging.warning(f"{self.ip}: API Command Error: {validation[1]}")
raise APIError(validation[1])
return data
@staticmethod
def validate_command_output(data: dict) -> tuple:
"""Check if the returned command output is correctly formatted."""
# check if the data returned is correct or an error
# if status isn't a key, it is a multicommand
if "STATUS" not in data.keys():
for key in data.keys():
# make sure not to try to turn id into a dict
if not key == "id":
# make sure they succeeded
if "STATUS" in data[key][0].keys():
if data[key][0]["STATUS"][0]["STATUS"] not in ["S", "I"]:
# this is an error
return False, f"{key}: " + data[key][0]["STATUS"][0]["Msg"]
elif "id" not in data.keys():
if data["STATUS"] not in ["S", "I"]:
return False, data["Msg"]
else:
# make sure the command succeeded
if data["STATUS"][0]["STATUS"] not in ("S", "I"):
# this is an error
if data["STATUS"][0]["STATUS"] not in ("S", "I"):
return False, data["STATUS"][0]["Msg"]
return True, None
@staticmethod
def load_api_data(data: bytes) -> dict:
"""Convert API data from JSON to dict"""
str_data = None
try:
# some json from the API returns with a null byte (\x00) on the end
if data.endswith(b"\x00"):
# handle the null byte
str_data = data.decode("utf-8")[:-1]
else:
# no null byte
str_data = data.decode("utf-8")
# fix an error with a btminer return having an extra comma that breaks json.loads()
str_data = str_data.replace(",}", "}")
# fix an error with a btminer return having a newline that breaks json.loads()
str_data = str_data.replace("\n", "")
# fix an error with a bmminer return not having a specific comma that breaks json.loads()
str_data = str_data.replace("}{", "},{")
# fix an error with a bmminer return having a specific comma that breaks json.loads()
str_data = str_data.replace("[,{", "[{")
# fix an error with a btminer return having a specific comma that breaks json.loads()
str_data = str_data.replace("inf", "0")
# parse the json
parsed_data = json.loads(str_data)
# handle bad json
except json.decoder.JSONDecodeError as e:
raise APIError(f"Decode Error {e}: {str_data}")
return parsed_data