def __call__(self, r):
"""Add OAuth parameters to the request.
Parameters may be included from the body if the content-type is
urlencoded, if no content type is set a guess is made.
"""
# Overwriting url is safe here as request will not modify it past
# this point.
log.debug('Signing request %s using client %s', r, self.client)
content_type = r.headers.get('Content-Type', '')
if (not content_type and extract_params(r.body)
or self.client.signature_type == SIGNATURE_TYPE_BODY):
content_type = CONTENT_TYPE_FORM_URLENCODED
if not isinstance(content_type, unicode):
content_type = content_type.decode('utf-8')
is_form_encoded = (CONTENT_TYPE_FORM_URLENCODED in content_type)
log.debug('Including body in call to sign: %s',
is_form_encoded or self.force_include_body)
if is_form_encoded:
r.headers['Content-Type'] = CONTENT_TYPE_FORM_URLENCODED
r.url, headers, r.body = self.client.sign(
unicode(r.url), unicode(r.method), r.body or '', r.headers)
elif self.force_include_body:
# To allow custom clients to work on non form encoded bodies.
r.url, headers, r.body = self.client.sign(
unicode(r.url), unicode(r.method), r.body or '', r.headers)
else:
# Omit body data in the signing of non form-encoded requests
r.url, headers, _ = self.client.sign(
unicode(r.url), unicode(r.method), None, r.headers)
r.prepare_headers(headers)
r.url = to_native_string(r.url)
log.debug('Updated url: %s', r.url)
log.debug('Updated headers: %s', headers)
log.debug('Updated body: %r', r.body)
return r
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