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vcrpy/vcr/filters.py
2015-11-07 17:05:25 -05:00

69 lines
2.6 KiB
Python

from six import BytesIO, text_type
from six.moves.urllib.parse import urlparse, urlencode, urlunparse
import json
from .compat import collections
def replace_headers(request, replacements):
"""
Replace headers in request according to replacements. The replacements
should be a list of (key, value) pairs where the value can be any of:
1. A simple replacement string value.
2. None to remove the given header.
3. A callable which accepts (key, value, request) and returns a string
value or None.
"""
new_headers = request.headers.copy()
for k, rv in replacements:
if k in new_headers:
ov = new_headers.pop(k)
if callable(rv):
rv = rv(key=k, value=ov, request=request)
if rv is not None:
new_headers[k] = rv
request.headers = new_headers
return request
def remove_headers(request, headers_to_remove):
"""
Wrap replace_headers() for API backward compatibility.
"""
replacements = [(k, None) for k in headers_to_remove]
return replace_headers(request, replacements)
def remove_query_parameters(request, query_parameters_to_remove):
query = request.query
new_query = [(k, v) for (k, v) in query
if k not in query_parameters_to_remove]
if len(new_query) != len(query):
uri_parts = list(urlparse(request.uri))
uri_parts[4] = urlencode(new_query)
request.uri = urlunparse(uri_parts)
return request
def remove_post_data_parameters(request, post_data_parameters_to_remove):
if request.method == 'POST' and not isinstance(request.body, BytesIO):
if request.headers.get('Content-Type') == 'application/json':
json_data = json.loads(request.body.decode('utf-8'))
for k in list(json_data.keys()):
if k in post_data_parameters_to_remove:
del json_data[k]
request.body = json.dumps(json_data).encode('utf-8')
else:
post_data = collections.OrderedDict()
if isinstance(request.body, text_type):
request.body = request.body.encode('utf-8')
for k, sep, v in (p.partition(b'=') for p in request.body.split(b'&')):
if k in post_data:
post_data[k].append(v)
elif len(k) > 0 and k.decode('utf-8') not in post_data_parameters_to_remove:
post_data[k] = [v]
request.body = b'&'.join(
b'='.join([k, v])
for k, vals in post_data.items() for v in vals)
return request