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# SPDX-License-Identifier: GPL-3.0-or-later
# Classes/protocols for representing HTTP requests and responses data.
#
# This file is part of Hydrilla&Haketilo.
#
# Copyright (C) 2022 Wojtek Kosior
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
#
# I, Wojtek Kosior, thereby promise not to sue for violation of this
# file's license. Although I request that you do not make use of this
# code in a proprietary program, I am not going to enforce this in
# court.
"""
.....
"""
import dataclasses as dc
import typing as t
import sys
if sys.version_info >= (3, 8):
from typing import Protocol
else:
from typing_extensions import Protocol
from .. import url_patterns
DefaultGetValue = t.TypeVar('DefaultGetValue', str, None)
class IHeaders(Protocol):
"""...."""
def __getitem__(self, key: str) -> str: ...
def get_all(self, key: str) -> t.Iterable[str]: ...
@t.overload
def get(self, key: str) -> t.Optional[str]:
...
@t.overload
def get(self, key: str, default: DefaultGetValue) \
-> t.Union[str, DefaultGetValue]:
...
def items(self) -> t.Iterable[tuple[str, str]]: ...
def encode_headers_items(headers: t.Iterable[tuple[str, str]]) \
-> t.Iterable[tuple[bytes, bytes]]:
"""...."""
for name, value in headers:
yield name.encode(), value.encode()
@dc.dataclass(frozen=True)
class ProducedRequest:
"""...."""
url: str
method: str
headers: t.Iterable[tuple[bytes, bytes]]
body: bytes
@dc.dataclass(frozen=True)
class BodylessRequestInfo:
url: url_patterns.ParsedUrl
method: str
headers: IHeaders
def with_body(self, body: bytes) -> 'RequestInfo':
return RequestInfo(self.url, self.method, self.headers, body)
@dc.dataclass(frozen=True)
class RequestInfo(BodylessRequestInfo):
body: bytes
def make_produced_request(self) -> ProducedRequest:
return ProducedRequest(
url = self.url.orig_url,
method = self.method,
headers = encode_headers_items(self.headers.items()),
body = self.body
)
@dc.dataclass(frozen=True)
class ProducedResponse:
"""...."""
status_code: int
headers: t.Iterable[tuple[bytes, bytes]]
body: bytes
@dc.dataclass(frozen=True)
class BodylessResponseInfo:
"""...."""
url: url_patterns.ParsedUrl
status_code: int
headers: IHeaders
def with_body(self, body: bytes) -> 'ResponseInfo':
return ResponseInfo(self.url, self.status_code, self.headers, body)
@dc.dataclass(frozen=True)
class ResponseInfo(BodylessResponseInfo):
body: bytes
def make_produced_response(self) -> ProducedResponse:
return ProducedResponse(
status_code = self.status_code,
headers = encode_headers_items(self.headers.items()),
body = self.body
)
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