-
Notifications
You must be signed in to change notification settings - Fork 91
/
http_server.py
153 lines (112 loc) · 4.45 KB
/
http_server.py
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
import socket
import sys
import traceback
def response_ok(body=b"This is a minimal response", mimetype=b"text/plain"):
"""
returns a basic HTTP response
Ex:
response_ok(
b"<html><h1>Welcome:</h1></html>",
b"text/html"
) ->
b'''
HTTP/1.1 200 OK\r\n
Content-Type: text/html\r\n
\r\n
<html><h1>Welcome:</h1></html>\r\n
'''
"""
# TODO: Implement response_ok
return b""
def response_method_not_allowed():
"""Returns a 405 Method Not Allowed response"""
# TODO: Implement response_method_not_allowed
return b""
def response_not_found():
"""Returns a 404 Not Found response"""
# TODO: Implement response_not_found
return b""
def parse_request(request):
"""
Given the content of an HTTP request, returns the path of that request.
This server only handles GET requests, so this method shall raise a
NotImplementedError if the method of the request is not GET.
"""
# TODO: implement parse_request
return ""
def response_path(path):
"""
This method should return appropriate content and a mime type.
If the requested path is a directory, then the content should be a
plain-text listing of the contents with mimetype `text/plain`.
If the path is a file, it should return the contents of that file
and its correct mimetype.
If the path does not map to a real location, it should raise an
exception that the server can catch to return a 404 response.
Ex:
response_path('/a_web_page.html') -> (b"<html><h1>North Carolina...",
b"text/html")
response_path('/images/sample_1.png')
-> (b"A12BCF...", # contents of sample_1.png
b"image/png")
response_path('/') -> (b"images/, a_web_page.html, make_type.py,...",
b"text/plain")
response_path('/a_page_that_doesnt_exist.html') -> Raises a NameError
"""
# TODO: Raise a NameError if the requested content is not present
# under webroot.
# TODO: Fill in the appropriate content and mime_type give the path.
# See the assignment guidelines for help on "mapping mime-types", though
# you might need to create a special case for handling make_time.py
#
# If the path is "make_time.py", then you may OPTIONALLY return the
# result of executing `make_time.py`. But you need only return the
# CONTENTS of `make_time.py`.
content = b"not implemented"
mime_type = b"not implemented"
return content, mime_type
def server(log_buffer=sys.stderr):
address = ('127.0.0.1', 10000)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
print("making a server on {0}:{1}".format(*address), file=log_buffer)
sock.bind(address)
sock.listen(1)
try:
while True:
print('waiting for a connection', file=log_buffer)
conn, addr = sock.accept() # blocking
try:
print('connection - {0}:{1}'.format(*addr), file=log_buffer)
request = ''
while True:
data = conn.recv(1024)
request += data.decode('utf8')
if '\r\n\r\n' in request:
break
print("Request received:\n{}\n\n".format(request))
# TODO: Use parse_request to retrieve the path from the request.
# TODO: Use response_path to retrieve the content and the mimetype,
# based on the request path.
# TODO; If parse_request raised a NotImplementedError, then let
# response be a method_not_allowed response. If response_path raised
# a NameError, then let response be a not_found response. Else,
# use the content and mimetype from response_path to build a
# response_ok.
response = response_ok(
body=b"Welcome to my web server",
mimetype=b"text/plain"
)
conn.sendall(response)
except:
traceback.print_exc()
finally:
conn.close()
except KeyboardInterrupt:
sock.close()
return
except:
traceback.print_exc()
if __name__ == '__main__':
server()
sys.exit(0)