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completed Assignment 3: socket-http-server project #28

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completed Assignment 3: socket-http-server project #28

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98 changes: 48 additions & 50 deletions http_server.py
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Original file line number Diff line number Diff line change
@@ -1,39 +1,38 @@
import socket
import sys
import traceback
import os
import mimetypes

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""
"""returns a basic HTTP response"""
return b"\r\n".join([
b"HTTP/1.1 200 OK",
b"Content-Type: " + mimetype,
b"",
body,
])

def response_method_not_allowed():
"""Returns a 405 Method Not Allowed response"""

# TODO: Implement response_method_not_allowed
return b""
return b"\r\n".join([
b"HTTP/1.1 405 Method Not Allowed",
b"",
b"405 - Method Not Allowed",
b"",
b"You can't do that on this server!",
])


def response_not_found():
"""Returns a 404 Not Found response"""

# TODO: Implement response_not_found
return b""
return b"\r\n".join([
b"HTTP/1.1 404 Not Found",
b"",
b"404 - Page Not Found",
b"",
b"That page cannot be found :(",
])


def parse_request(request):
Expand All @@ -43,9 +42,10 @@ def parse_request(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 ""
method, path, version = request.split("\r\n")[0].split(" ")
if method != "GET":
raise NotImplementedError
return path

def response_path(path):
"""
Expand Down Expand Up @@ -75,20 +75,22 @@ def response_path(path):

"""

# 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"

path = "webroot" + path

if not os.path.exists(path):
raise NameError

if os.path.isdir(path):
content = "\r\n".join(os.listdir(path)).encode()
mime_type = b"text/plain"
else:
with open(path, "rb") as f:
content = f.read()
mime_type = mimetypes.guess_type(path)[0].encode()

return content, mime_type


Expand Down Expand Up @@ -118,20 +120,16 @@ def server(log_buffer=sys.stderr):

print("Request received:\n{}\n\n".format(request))

# TODO: Use parse_request to retrieve the path from the request.
try:
path = parse_request(request)
body, mimetype = response_path(path)
response = response_ok(body, mimetype)

# TODO: Use response_path to retrieve the content and the mimetype,
# based on the request path.
except NotImplementedError:
response = response_method_not_allowed()

# 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"
)
except NameError:
response = response_not_found()

conn.sendall(response)
except:
Expand Down