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151 lines
4.1 KiB
151 lines
4.1 KiB
from . import six
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from .base import JSONRPCBaseRequest, JSONRPCBaseResponse
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from .exceptions import JSONRPCInvalidRequestException, JSONRPCError
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class JSONRPC10Request(JSONRPCBaseRequest):
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""" JSON-RPC 1.0 Request.
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A remote method is invoked by sending a request to a remote service.
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The request is a single object serialized using json.
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:param str method: The name of the method to be invoked.
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:param list params: An Array of objects to pass as arguments to the method.
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:param _id: This can be of any type. It is used to match the response with
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the request that it is replying to.
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:param bool is_notification: whether request notification or not.
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"""
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JSONRPC_VERSION = "1.0"
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REQUIRED_FIELDS = set(["method", "params", "id"])
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POSSIBLE_FIELDS = set(["method", "params", "id"])
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@property
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def data(self):
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data = dict((k, v) for k, v in self._data.items())
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data["id"] = None if self.is_notification else data["id"]
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return data
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@data.setter
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def data(self, value):
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if not isinstance(value, dict):
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raise ValueError("data should be dict")
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self._data = value
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@property
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def method(self):
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return self._data.get("method")
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@method.setter
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def method(self, value):
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if not isinstance(value, six.string_types):
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raise ValueError("Method should be string")
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self._data["method"] = str(value)
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@property
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def params(self):
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return self._data.get("params")
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@params.setter
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def params(self, value):
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if not isinstance(value, (list, tuple)):
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raise ValueError("Incorrect params {0}".format(value))
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self._data["params"] = list(value)
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@property
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def _id(self):
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return self._data.get("id")
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@_id.setter
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def _id(self, value):
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self._data["id"] = value
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@property
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def is_notification(self):
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return self._data["id"] is None or self._is_notification
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@is_notification.setter
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def is_notification(self, value):
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if value is None:
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value = self._id is None
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if self._id is None and not value:
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raise ValueError("Can not set attribute is_notification. " +
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"Request id should not be None")
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self._is_notification = value
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@classmethod
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def from_json(cls, json_str):
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data = cls.deserialize(json_str)
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return cls.from_data(data)
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@classmethod
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def from_data(cls, data):
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if not isinstance(data, dict):
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raise ValueError("data should be dict")
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if cls.REQUIRED_FIELDS <= set(data.keys()) <= cls.POSSIBLE_FIELDS:
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return cls(
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method=data["method"], params=data["params"], _id=data["id"]
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)
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else:
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extra = set(data.keys()) - cls.POSSIBLE_FIELDS
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missed = cls.REQUIRED_FIELDS - set(data.keys())
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msg = "Invalid request. Extra fields: {0}, Missed fields: {1}"
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raise JSONRPCInvalidRequestException(msg.format(extra, missed))
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class JSONRPC10Response(JSONRPCBaseResponse):
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JSONRPC_VERSION = "1.0"
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@property
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def data(self):
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data = dict((k, v) for k, v in self._data.items())
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return data
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@data.setter
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def data(self, value):
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if not isinstance(value, dict):
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raise ValueError("data should be dict")
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self._data = value
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@property
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def result(self):
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return self._data.get("result")
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@result.setter
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def result(self, value):
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if self.error:
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raise ValueError("Either result or error should be used")
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self._data["result"] = value
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@property
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def error(self):
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return self._data.get("error")
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@error.setter
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def error(self, value):
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self._data.pop('value', None)
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if value:
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self._data["error"] = value
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# Test error
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JSONRPCError(**value)
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@property
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def _id(self):
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return self._data.get("id")
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@_id.setter
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def _id(self, value):
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if value is None:
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raise ValueError("id could not be null for JSON-RPC1.0 Response")
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self._data["id"] = value
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