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#!/usr/bin/env python3
import os, sys
from urllib import parse
import multipart # https://github.com/andrew-d/python-multipart (`apt install python3-multipart`)
def get_request_params():
oforms = {}
ofiles = {}
if "REQUEST_URI" in os.environ:
qforms = parse.parse_qs(parse.urlsplit(os.environ["REQUEST_URI"]).query)
for name, values in qforms.items():
oforms[name] = values[0]
if "HTTP_CONTENT_TYPE" in os.environ:
ctype = os.environ["HTTP_CONTENT_TYPE"]
if ctype == "application/x-www-form-urlencoded":
qforms = parse.parse_qs(parse.urlsplit(sys.stdin.read()).query)
for name, values in qforms.items():
oforms[name] = values[0]
elif ctype.startswith("multipart/"):
def on_field(field):
oforms[field.field_name] = field.value
def on_file(file):
ofiles[field.field_name] = field.value
multipart.parse_form(headers={"Content-Type": ctype}, input_stream=sys.stdin.buffer, on_field=on_field, on_file=on_file)
return oforms, ofiles
forms, files = get_request_params()
status = '200 Ok'
try:
# A nested FieldStorage instance holds the file
name = forms['name']
value = ''
try:
value = forms['value']
except KeyError:
value = os.environ.get("HTTP_"+name, "unset")
# Test if a value was given
if name:
print("Status: 200")
print("%s: %s" % (name, value,))
print ("""\
Content-Type: text/plain\n""")
else:
print("Status: 400 Parameter Missing")
print("""\
Content-Type: text/html\n
<html><body>
<p>No name and value was specified: %s %s</p>
</body></html>""" % (name, value))
except KeyError:
print("Status: 200 Ok")
print("""\
Content-Type: text/html\n
<html><body>
Echo <form method="POST" enctype="application/x-www-form-urlencoded">
<input type="text" name="name">
<input type="text" name="value">
<button type="submit">Echo</button></form>
</body></html>""")
pass
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