1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
from typing import Any, Generator
from src.config import BUFFER_LENGTH
from src.status_code import StatusCode
class Request:
"""
Just a request
"""
def __init__(self):
self.type: str = ""
self.path: str = ""
self.path_args: dict[str, str | None] = dict()
@staticmethod
def create(raw_request: bytes):
"""
Creates self class from raw request
:param raw_request: bytes
:return: self
"""
# new request
request = Request()
# change type and path
request.type = raw_request[:raw_request.find(b' ')].decode("utf8")
raw_path = raw_request[len(request.type)+1:raw_request.find(b' ', len(request.type)+1)].decode("utf8")
# remove path args from path
request.path = raw_path.split("?")[0]
# decode path args
raw_args = raw_path.split("/")[-1].split("?")
raw_args = raw_args[1] if len(raw_args) == 2 else ""
for raw_arg in raw_args.split("&"):
split = raw_arg.split("=")
# if there is a key value pair present
if len(split) == 2:
request.path_args[split[0]] = split[1]
# if there is only a key present (and it's a valid key)
elif len(split) == 1 and split[0] != "":
request.path_args[split[0]] = None
# decode headers
for raw_header in raw_request.split(b'\r\n'):
if len(pair := raw_header.decode("utf8").split(":")) == 2:
key, val = pair
val = val.strip()
# set attribute to key value pair
setattr(request, key, val)
# return request
return request
def __str__(self):
return '\n'.join([f"{key}: {val}" for key, val in self.__dict__.items()])
class Response:
"""
Server response
"""
def __init__(self, data: bytes, status: StatusCode, headers: dict[str, Any] = None, **kwargs):
"""
:param data: response data
:param status: response status code
:param headers: headers to include
:key compress: compress data or not
:key data_stream: stream of data
"""
self.data: bytes = data
self.data_stream: Generator[bytes, None, None] | None = kwargs.get("data_stream")
self.status: StatusCode = status
self.headers: dict[str, Any] = headers if headers is not None else dict()
self.compress: bool = kwargs.get("compress", True)
# # check for content-length when using data_stream
# if self.data_stream is not None and self.headers.get("Content-Length") is None:
# raise Exception("Undefined length for data stream")
def get_data_stream(self):
if self.data_stream is None:
def generator() -> bytes:
for i in range(0, len(self.data), BUFFER_LENGTH):
yield self.data[i:i+BUFFER_LENGTH]
return generator()
else:
return self.data_stream
|