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import json
import time
import urllib.error
import urllib.request
from abc import ABC, abstractmethod
from logging import getLogger
from typing import Optional
from defence360agent.contracts.config import Core
from defence360agent.contracts.messages import Message
from defence360agent.internals.iaid import (
IndependentAgentIDAPI,
IAIDTokenError,
)
from defence360agent.utils.json import ServerJSONEncoder
from defence360agent.api.server import API, APIError, APITokenError
logger = getLogger(__name__)
class BaseSendMessageAPI(API, ABC):
URL = "/api/v2/send-message/{method}"
@abstractmethod
async def _send_request(self, message_method, headers, post_data) -> dict:
pass # pragma: no cover
def check_response(self, result: dict) -> None:
if "status" not in result:
raise APIError("unexpected server response: {!r}".format(result))
if result["status"] != "ok":
raise APIError("server error: {}".format(result.get("msg")))
async def send_data(self, method: str, post_data: bytes) -> None:
try:
token = await IndependentAgentIDAPI.get_token()
except IAIDTokenError as e:
raise APITokenError(f"IAID token error occurred {e}")
headers = {
"Content-Type": "application/json",
"X-Auth": token,
}
result = await self._send_request(method, headers, post_data)
self.check_response(result)
class SendMessageAPI(BaseSendMessageAPI):
_SOCKET_TIMEOUT = Core.DEFAULT_SOCKET_TIMEOUT
def __init__(self, rpm_ver: str, base_url: str = None, executor=None):
self._executor = executor
self.rpm_ver = rpm_ver
self.product_name = ""
self.server_id = None # type: Optional[str]
self.license = {} # type: dict
if base_url:
self.base_url = base_url
else:
self.base_url = self._BASE_URL
def set_product_name(self, product_name: str) -> None:
self.product_name = product_name
def set_server_id(self, server_id: Optional[str]) -> None:
self.server_id = server_id
def set_license(self, license: dict) -> None:
self.license = license
async def _send_request(self, message_method, headers, post_data):
request = urllib.request.Request(
self.base_url + self.URL.format(method=message_method),
data=post_data,
headers=headers,
method="POST",
)
return await self.async_request(request, executor=self._executor)
async def send_message(self, message: Message) -> None:
# add message handling time if it does not exist, so that
# the server does not depend on the time it was received
if "timestamp" not in message:
message["timestamp"] = time.time()
data2send = {
"payload": message.payload,
"rpm_ver": self.rpm_ver,
"message_id": message.message_id,
"server_id": self.server_id,
"name": self.product_name,
}
post_data = json.dumps(data2send, cls=ServerJSONEncoder).encode()
await self.send_data(message.method, post_data)
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