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python.rest.mustache Maven / Gradle / Ivy
# coding: utf-8
{{>partial_header}}
import io
import json
import re
import ssl
import urllib3
from {{packageName}}.exceptions import ApiException, ApiValueError
SUPPORTED_SOCKS_PROXIES = {"socks5", "socks5h", "socks4", "socks4a"}
RESTResponseType = urllib3.HTTPResponse
def is_socks_proxy_url(url):
if url is None:
return False
split_section = url.split("://")
if len(split_section) < 2:
return False
else:
return split_section[0].lower() in SUPPORTED_SOCKS_PROXIES
class RESTResponse(io.IOBase):
def __init__(self, resp) -> None:
self.response = resp
self.status = resp.status
self.reason = resp.reason
self.data = None
def read(self):
if self.data is None:
self.data = self.response.data
return self.data
def getheaders(self):
"""Returns a dictionary of the response headers."""
return self.response.headers
def getheader(self, name, default=None):
"""Returns a given response header."""
return self.response.headers.get(name, default)
class RESTClientObject:
def __init__(self, configuration) -> None:
# urllib3.PoolManager will pass all kw parameters to connectionpool
# https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/poolmanager.py#L75 # noqa: E501
# https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/connectionpool.py#L680 # noqa: E501
# Custom SSL certificates and client certificates: http://urllib3.readthedocs.io/en/latest/advanced-usage.html # noqa: E501
# cert_reqs
if configuration.verify_ssl:
cert_reqs = ssl.CERT_REQUIRED
else:
cert_reqs = ssl.CERT_NONE
pool_args = {
"cert_reqs": cert_reqs,
"ca_certs": configuration.ssl_ca_cert,
"cert_file": configuration.cert_file,
"key_file": configuration.key_file,
}
if configuration.assert_hostname is not None:
pool_args['assert_hostname'] = (
configuration.assert_hostname
)
if configuration.retries is not None:
pool_args['retries'] = configuration.retries
if configuration.tls_server_name:
pool_args['server_hostname'] = configuration.tls_server_name
if configuration.socket_options is not None:
pool_args['socket_options'] = configuration.socket_options
if configuration.connection_pool_maxsize is not None:
pool_args['maxsize'] = configuration.connection_pool_maxsize
# https pool manager
self.pool_manager: urllib3.PoolManager
if configuration.proxy:
if is_socks_proxy_url(configuration.proxy):
from urllib3.contrib.socks import SOCKSProxyManager
pool_args["proxy_url"] = configuration.proxy
pool_args["headers"] = configuration.proxy_headers
self.pool_manager = SOCKSProxyManager(**pool_args)
else:
pool_args["proxy_url"] = configuration.proxy
pool_args["proxy_headers"] = configuration.proxy_headers
self.pool_manager = urllib3.ProxyManager(**pool_args)
else:
self.pool_manager = urllib3.PoolManager(**pool_args)
def request(
self,
method,
url,
headers=None,
body=None,
post_params=None,
_request_timeout=None
):
"""Perform requests.
:param method: http request method
:param url: http request url
:param headers: http request headers
:param body: request json body, for `application/json`
:param post_params: request post parameters,
`application/x-www-form-urlencoded`
and `multipart/form-data`
:param _request_timeout: timeout setting for this request. If one
number provided, it will be total request
timeout. It can also be a pair (tuple) of
(connection, read) timeouts.
"""
method = method.upper()
assert method in [
'GET',
'HEAD',
'DELETE',
'POST',
'PUT',
'PATCH',
'OPTIONS'
]
if post_params and body:
raise ApiValueError(
"body parameter cannot be used with post_params parameter."
)
post_params = post_params or {}
headers = headers or {}
timeout = None
if _request_timeout:
if isinstance(_request_timeout, (int, float)):
timeout = urllib3.Timeout(total=_request_timeout)
elif (
isinstance(_request_timeout, tuple)
and len(_request_timeout) == 2
):
timeout = urllib3.Timeout(
connect=_request_timeout[0],
read=_request_timeout[1]
)
try:
# For `POST`, `PUT`, `PATCH`, `OPTIONS`, `DELETE`
if method in ['POST', 'PUT', 'PATCH', 'OPTIONS', 'DELETE']:
# no content type provided or payload is json
content_type = headers.get('Content-Type')
if (
not content_type
or re.search('json', content_type, re.IGNORECASE)
):
request_body = None
if body is not None:
request_body = json.dumps(body)
r = self.pool_manager.request(
method,
url,
body=request_body,
timeout=timeout,
headers=headers,
preload_content=False
)
elif content_type == 'application/x-www-form-urlencoded':
r = self.pool_manager.request(
method,
url,
fields=post_params,
encode_multipart=False,
timeout=timeout,
headers=headers,
preload_content=False
)
elif content_type == 'multipart/form-data':
# must del headers['Content-Type'], or the correct
# Content-Type which generated by urllib3 will be
# overwritten.
del headers['Content-Type']
r = self.pool_manager.request(
method,
url,
fields=post_params,
encode_multipart=True,
timeout=timeout,
headers=headers,
preload_content=False
)
# Pass a `string` parameter directly in the body to support
# other content types than JSON when `body` argument is
# provided in serialized form.
elif isinstance(body, str) or isinstance(body, bytes):
r = self.pool_manager.request(
method,
url,
body=body,
timeout=timeout,
headers=headers,
preload_content=False
)
elif headers['Content-Type'] == 'text/plain' and isinstance(body, bool):
request_body = "true" if body else "false"
r = self.pool_manager.request(
method,
url,
body=request_body,
preload_content=False,
timeout=timeout,
headers=headers)
else:
# Cannot generate the request from given parameters
msg = """Cannot prepare a request message for provided
arguments. Please check that your arguments match
declared content type."""
raise ApiException(status=0, reason=msg)
# For `GET`, `HEAD`
else:
r = self.pool_manager.request(
method,
url,
fields={},
timeout=timeout,
headers=headers,
preload_content=False
)
except urllib3.exceptions.SSLError as e:
msg = "\n".join([type(e).__name__, str(e)])
raise ApiException(status=0, reason=msg)
return RESTResponse(r)
