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#
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# The MIT License (MIT)
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import abc
import copy
from typing import (
Any,
AsyncIterable,
AsyncIterator,
Iterable,
Iterator,
Optional,
Union,
MutableMapping,
Dict,
AsyncContextManager,
)
from ..utils._utils import case_insensitive_dict
from ._helpers import (
ParamsType,
FilesType,
set_json_body,
set_multipart_body,
set_urlencoded_body,
_format_parameters_helper,
HttpRequestBackcompatMixin,
set_content_body,
)
ContentType = Union[str, bytes, Iterable[bytes], AsyncIterable[bytes]]
################################## CLASSES ######################################
class HttpRequest(HttpRequestBackcompatMixin):
"""An HTTP request.
It should be passed to your client's `send_request` method.
>>> from azure.core.rest import HttpRequest
>>> request = HttpRequest('GET', 'http://www.example.com')
<HttpRequest [GET], url: 'http://www.example.com'>
>>> response = client.send_request(request)
<HttpResponse: 200 OK>
:param str method: HTTP method (GET, HEAD, etc.)
:param str url: The url for your request
:keyword mapping params: Query parameters to be mapped into your URL. Your input
should be a mapping of query name to query value(s).
:keyword mapping headers: HTTP headers you want in your request. Your input should
be a mapping of header name to header value.
:keyword any json: A JSON serializable object. We handle JSON-serialization for your
object, so use this for more complicated data structures than `data`.
:keyword content: Content you want in your request body. Think of it as the kwarg you should input
if your data doesn't fit into `json`, `data`, or `files`. Accepts a bytes type, or a generator
that yields bytes.
:paramtype content: str or bytes or iterable[bytes] or asynciterable[bytes]
:keyword dict data: Form data you want in your request body. Use for form-encoded data, i.e.
HTML forms.
:keyword mapping files: Files you want to in your request body. Use for uploading files with
multipart encoding. Your input should be a mapping of file name to file content.
Use the `data` kwarg in addition if you want to include non-file data files as part of your request.
:ivar str url: The URL this request is against.
:ivar str method: The method type of this request.
:ivar mapping headers: The HTTP headers you passed in to your request
:ivar any content: The content passed in for the request
"""
def __init__(
self,
method: str,
url: str,
*,
params: Optional[ParamsType] = None,
headers: Optional[MutableMapping[str, str]] = None,
json: Any = None,
content: Optional[ContentType] = None,
data: Optional[Dict[str, Any]] = None,
files: Optional[FilesType] = None,
**kwargs: Any
):
self.url = url
self.method = method
if params:
_format_parameters_helper(self, params)
self._files = None
self._data: Any = None
default_headers = self._set_body(
content=content,
data=data,
files=files,
json=json,
)
self.headers: MutableMapping[str, str] = case_insensitive_dict(default_headers)
self.headers.update(headers or {})
if kwargs:
raise TypeError(
"You have passed in kwargs '{}' that are not valid kwargs.".format("', '".join(list(kwargs.keys())))
)
def _set_body(
self,
content: Optional[ContentType] = None,
data: Optional[Dict[str, Any]] = None,
files: Optional[FilesType] = None,
json: Any = None,
) -> MutableMapping[str, str]:
"""Sets the body of the request, and returns the default headers.
:param content: Content you want in your request body.
:type content: str or bytes or iterable[bytes] or asynciterable[bytes]
:param dict data: Form data you want in your request body.
:param dict files: Files you want to in your request body.
:param any json: A JSON serializable object.
:return: The default headers for the request
:rtype: MutableMapping[str, str]
"""
default_headers: MutableMapping[str, str] = {}
if data is not None and not isinstance(data, dict):
# should we warn?
content = data
if content is not None:
default_headers, self._data = set_content_body(content)
return default_headers
if json is not None:
default_headers, self._data = set_json_body(json)
return default_headers
if files:
default_headers, self._files = set_multipart_body(files)
if data:
default_headers, self._data = set_urlencoded_body(data, has_files=bool(files))
return default_headers
@property
def content(self) -> Any:
"""Get's the request's content
:return: The request's content
:rtype: any
"""
return self._data or self._files
def __repr__(self) -> str:
return "<HttpRequest [{}], url: '{}'>".format(self.method, self.url)
def __deepcopy__(self, memo: Optional[Dict[int, Any]] = None) -> "HttpRequest":
try:
request = HttpRequest(
method=self.method,
url=self.url,
headers=self.headers,
)
request._data = copy.deepcopy(self._data, memo)
request._files = copy.deepcopy(self._files, memo)
self._add_backcompat_properties(request, memo)
return request
except (ValueError, TypeError):
return copy.copy(self)
class _HttpResponseBase(abc.ABC):
"""Base abstract base class for HttpResponses."""
@property
@abc.abstractmethod
def request(self) -> HttpRequest:
"""The request that resulted in this response.
:rtype: ~azure.core.rest.HttpRequest
:return: The request that resulted in this response.
"""
@property
@abc.abstractmethod
def status_code(self) -> int:
"""The status code of this response.
:rtype: int
:return: The status code of this response.
"""
@property
@abc.abstractmethod
def headers(self) -> MutableMapping[str, str]:
"""The response headers. Must be case-insensitive.
:rtype: MutableMapping[str, str]
:return: The response headers. Must be case-insensitive.
"""
@property
@abc.abstractmethod
def reason(self) -> str:
"""The reason phrase for this response.
:rtype: str
:return: The reason phrase for this response.
"""
@property
@abc.abstractmethod
def content_type(self) -> Optional[str]:
"""The content type of the response.
:rtype: str
:return: The content type of the response.
"""
@property
@abc.abstractmethod
def is_closed(self) -> bool:
"""Whether the network connection has been closed yet.
:rtype: bool
:return: Whether the network connection has been closed yet.
"""
@property
@abc.abstractmethod
def is_stream_consumed(self) -> bool:
"""Whether the stream has been consumed.
:rtype: bool
:return: Whether the stream has been consumed.
"""
@property
@abc.abstractmethod
def encoding(self) -> Optional[str]:
"""Returns the response encoding.
:return: The response encoding. We either return the encoding set by the user,
or try extracting the encoding from the response's content type. If all fails,
we return `None`.
:rtype: optional[str]
"""
@encoding.setter
def encoding(self, value: Optional[str]) -> None:
"""Sets the response encoding.
:param optional[str] value: The encoding to set
"""
@property
@abc.abstractmethod
def url(self) -> str:
"""The URL that resulted in this response.
:rtype: str
:return: The URL that resulted in this response.
"""
@property
@abc.abstractmethod
def content(self) -> bytes:
"""Return the response's content in bytes.
:rtype: bytes
:return: The response's content in bytes.
"""
@abc.abstractmethod
def text(self, encoding: Optional[str] = None) -> str:
"""Returns the response body as a string.
:param optional[str] encoding: The encoding you want to decode the text with. Can
also be set independently through our encoding property
:return: The response's content decoded as a string.
:rtype: str
"""
@abc.abstractmethod
def json(self) -> Any:
"""Returns the whole body as a json object.
:return: The JSON deserialized response body
:rtype: any
:raises json.decoder.JSONDecodeError or ValueError (in python 2.7) if object is not JSON decodable:
"""
@abc.abstractmethod
def raise_for_status(self) -> None:
"""Raises an HttpResponseError if the response has an error status code.
If response is good, does nothing.
:raises ~azure.core.HttpResponseError if the object has an error status code.:
"""
class HttpResponse(_HttpResponseBase):
"""Abstract base class for HTTP responses.
Use this abstract base class to create your own transport responses.
Responses implementing this ABC are returned from your client's `send_request` method
if you pass in an :class:`~azure.core.rest.HttpRequest`
>>> from azure.core.rest import HttpRequest
>>> request = HttpRequest('GET', 'http://www.example.com')
<HttpRequest [GET], url: 'http://www.example.com'>
>>> response = client.send_request(request)
<HttpResponse: 200 OK>
"""
@abc.abstractmethod
def __enter__(self) -> "HttpResponse":
...
@abc.abstractmethod
def __exit__(self, *args: Any) -> None:
...
@abc.abstractmethod
def close(self) -> None:
...
@abc.abstractmethod
def read(self) -> bytes:
"""Read the response's bytes.
:return: The read in bytes
:rtype: bytes
"""
@abc.abstractmethod
def iter_raw(self, **kwargs: Any) -> Iterator[bytes]:
"""Iterates over the response's bytes. Will not decompress in the process.
:return: An iterator of bytes from the response
:rtype: Iterator[str]
"""
@abc.abstractmethod
def iter_bytes(self, **kwargs: Any) -> Iterator[bytes]:
"""Iterates over the response's bytes. Will decompress in the process.
:return: An iterator of bytes from the response
:rtype: Iterator[str]
"""
def __repr__(self) -> str:
content_type_str = ", Content-Type: {}".format(self.content_type) if self.content_type else ""
return "<HttpResponse: {} {}{}>".format(self.status_code, self.reason, content_type_str)
class AsyncHttpResponse(_HttpResponseBase, AsyncContextManager["AsyncHttpResponse"]):
"""Abstract base class for Async HTTP responses.
Use this abstract base class to create your own transport responses.
Responses implementing this ABC are returned from your async client's `send_request`
method if you pass in an :class:`~azure.core.rest.HttpRequest`
>>> from azure.core.rest import HttpRequest
>>> request = HttpRequest('GET', 'http://www.example.com')
<HttpRequest [GET], url: 'http://www.example.com'>
>>> response = await client.send_request(request)
<AsyncHttpResponse: 200 OK>
"""
@abc.abstractmethod
async def read(self) -> bytes:
"""Read the response's bytes into memory.
:return: The response's bytes
:rtype: bytes
"""
@abc.abstractmethod
async def iter_raw(self, **kwargs: Any) -> AsyncIterator[bytes]:
"""Asynchronously iterates over the response's bytes. Will not decompress in the process.
:return: An async iterator of bytes from the response
:rtype: AsyncIterator[bytes]
"""
raise NotImplementedError()
# getting around mypy behavior, see https://github.com/python/mypy/issues/10732
yield # pylint: disable=unreachable
@abc.abstractmethod
async def iter_bytes(self, **kwargs: Any) -> AsyncIterator[bytes]:
"""Asynchronously iterates over the response's bytes. Will decompress in the process.
:return: An async iterator of bytes from the response
:rtype: AsyncIterator[bytes]
"""
raise NotImplementedError()
# getting around mypy behavior, see https://github.com/python/mypy/issues/10732
yield # pylint: disable=unreachable
@abc.abstractmethod
async def close(self) -> None:
...