def send_message(self, sender, to, text, callback):
"""
Sends a message through the GTX Pro HTTP Gateway.
"""
url = self.assamble_url(sender, to, text)
logging.debug('Requesting GTX service: ' + url)
request = HTTPRequest(url=url, method='GET')
if self.ssl:
request.ca_certs = os.path.join(os.path.dirname(__file__),
'VenistaRoot.crt')
# Define response callback.
def handle_request(response):
if response.error:
logging.warning("Request failed: " + str(response.error))
callback(False)
else: callback(True)
# Start request.
self.http_client.fetch(request, handle_request)
def _curl_setup_request(
self,
curl: pycurl.Curl,
request: HTTPRequest,
buffer: BytesIO,
headers: httputil.HTTPHeaders,
) -> None:
curl.setopt(pycurl.URL, native_str(request.url))
# libcurl's magic "Expect: 100-continue" behavior causes delays
# with servers that don't support it (which include, among others,
# Google's OpenID endpoint). Additionally, this behavior has
# a bug in conjunction with the curl_multi_socket_action API
# (https://sourceforge.net/tracker/?func=detail&atid=100976&aid=3039744&group_id=976),
# which increases the delays. It's more trouble than it's worth,
# so just turn off the feature (yes, setting Expect: to an empty
# value is the official way to disable this)
if "Expect" not in request.headers:
request.headers["Expect"] = ""
# libcurl adds Pragma: no-cache by default; disable that too
if "Pragma" not in request.headers:
request.headers["Pragma"] = ""
curl.setopt(
pycurl.HTTPHEADER,
[
"%s: %s" % (native_str(k), native_str(v))
for k, v in request.headers.get_all()
],
)
curl.setopt(
pycurl.HEADERFUNCTION,
functools.partial(self._curl_header_callback, headers,
request.header_callback),
)
if request.streaming_callback:
def write_function(b: Union[bytes, bytearray]) -> int:
assert request.streaming_callback is not None
self.io_loop.add_callback(request.streaming_callback, b)
return len(b)
else:
write_function = buffer.write
curl.setopt(pycurl.WRITEFUNCTION, write_function)
curl.setopt(pycurl.FOLLOWLOCATION, request.follow_redirects)
curl.setopt(pycurl.MAXREDIRS, request.max_redirects)
assert request.connect_timeout is not None
curl.setopt(pycurl.CONNECTTIMEOUT_MS,
int(1000 * request.connect_timeout))
assert request.request_timeout is not None
curl.setopt(pycurl.TIMEOUT_MS, int(1000 * request.request_timeout))
if request.user_agent:
curl.setopt(pycurl.USERAGENT, native_str(request.user_agent))
else:
curl.setopt(pycurl.USERAGENT, "Mozilla/5.0 (compatible; pycurl)")
if request.network_interface:
curl.setopt(pycurl.INTERFACE, request.network_interface)
if request.decompress_response:
curl.setopt(pycurl.ENCODING, "gzip,deflate")
else:
curl.setopt(pycurl.ENCODING, None)
if request.proxy_host and request.proxy_port:
curl.setopt(pycurl.PROXY, request.proxy_host)
curl.setopt(pycurl.PROXYPORT, request.proxy_port)
if request.proxy_username:
assert request.proxy_password is not None
credentials = httputil.encode_username_password(
request.proxy_username, request.proxy_password)
curl.setopt(pycurl.PROXYUSERPWD, credentials)
if request.proxy_auth_mode is None or request.proxy_auth_mode == "basic":
curl.setopt(pycurl.PROXYAUTH, pycurl.HTTPAUTH_BASIC)
elif request.proxy_auth_mode == "digest":
curl.setopt(pycurl.PROXYAUTH, pycurl.HTTPAUTH_DIGEST)
else:
raise ValueError("Unsupported proxy_auth_mode %s" %
request.proxy_auth_mode)
else:
try:
curl.unsetopt(pycurl.PROXY)
except TypeError: # not supported, disable proxy
curl.setopt(pycurl.PROXY, "")
curl.unsetopt(pycurl.PROXYUSERPWD)
if request.validate_cert:
curl.setopt(pycurl.SSL_VERIFYPEER, 1)
curl.setopt(pycurl.SSL_VERIFYHOST, 2)
else:
curl.setopt(pycurl.SSL_VERIFYPEER, 0)
curl.setopt(pycurl.SSL_VERIFYHOST, 0)
if request.ca_certs is not None:
cafile, capath, cadata = None, None, None
if callable(request.ca_certs):
cafile, capath, cadata = request.ca_certs()
else:
cafile = request.ca_certs
if cafile is not None:
curl.setopt(pycurl.CAINFO, cafile)
if capath is not None:
curl.setopt(pycurl.CAPATH, capath)
if cadata is not None:
curl.set_ca_certs(cadata)
else:
# There is no way to restore pycurl.CAINFO to its default value
# (Using unsetopt makes it reject all certificates).
# I don't see any way to read the default value from python so it
# can be restored later. We'll have to just leave CAINFO untouched
# if no ca_certs file was specified, and require that if any
# request uses a custom ca_certs file, they all must.
pass
if request.allow_ipv6 is False:
# Curl behaves reasonably when DNS resolution gives an ipv6 address
# that we can't reach, so allow ipv6 unless the user asks to disable.
curl.setopt(pycurl.IPRESOLVE, pycurl.IPRESOLVE_V4)
else:
curl.setopt(pycurl.IPRESOLVE, pycurl.IPRESOLVE_WHATEVER)
# Set the request method through curl's irritating interface which makes
# up names for almost every single method
curl_options = {
"GET": pycurl.HTTPGET,
"POST": pycurl.POST,
"PUT": pycurl.UPLOAD,
"HEAD": pycurl.NOBODY,
}
custom_methods = set(["DELETE", "OPTIONS", "PATCH"])
for o in curl_options.values():
curl.setopt(o, False)
if request.method in curl_options:
curl.unsetopt(pycurl.CUSTOMREQUEST)
curl.setopt(curl_options[request.method], True)
elif request.allow_nonstandard_methods or request.method in custom_methods:
curl.setopt(pycurl.CUSTOMREQUEST, request.method)
else:
raise KeyError("unknown method " + request.method)
body_expected = request.method in ("POST", "PATCH", "PUT")
body_present = request.body is not None
if not request.allow_nonstandard_methods:
# Some HTTP methods nearly always have bodies while others
# almost never do. Fail in this case unless the user has
# opted out of sanity checks with allow_nonstandard_methods.
if (body_expected and not body_present) or (body_present
and not body_expected):
raise ValueError(
"Body must %sbe None for method %s (unless "
"allow_nonstandard_methods is true)" %
("not " if body_expected else "", request.method))
if body_expected or body_present:
if request.method == "GET":
# Even with `allow_nonstandard_methods` we disallow
# GET with a body (because libcurl doesn't allow it
# unless we use CUSTOMREQUEST). While the spec doesn't
# forbid clients from sending a body, it arguably
# disallows the server from doing anything with them.
raise ValueError("Body must be None for GET request")
request_buffer = BytesIO(utf8(request.body or ""))
def ioctl(cmd: int) -> None:
if cmd == curl.IOCMD_RESTARTREAD: # type: ignore
request_buffer.seek(0)
curl.setopt(pycurl.READFUNCTION, request_buffer.read)
curl.setopt(pycurl.IOCTLFUNCTION, ioctl)
if request.method == "POST":
curl.setopt(pycurl.POSTFIELDSIZE, len(request.body or ""))
else:
curl.setopt(pycurl.UPLOAD, True)
curl.setopt(pycurl.INFILESIZE, len(request.body or ""))
if request.auth_username is not None:
assert request.auth_password is not None
if request.auth_mode is None or request.auth_mode == "basic":
curl.setopt(pycurl.HTTPAUTH, pycurl.HTTPAUTH_BASIC)
elif request.auth_mode == "digest":
curl.setopt(pycurl.HTTPAUTH, pycurl.HTTPAUTH_DIGEST)
else:
raise ValueError("Unsupported auth_mode %s" %
request.auth_mode)
userpwd = httputil.encode_username_password(
request.auth_username, request.auth_password)
curl.setopt(pycurl.USERPWD, userpwd)
curl_log.debug(
"%s %s (username: %r)",
request.method,
request.url,
request.auth_username,
)
else:
curl.unsetopt(pycurl.USERPWD)
curl_log.debug("%s %s", request.method, request.url)
if request.client_cert is not None:
curl.setopt(pycurl.SSLCERT, request.client_cert)
if request.client_key is not None:
curl.setopt(pycurl.SSLKEY, request.client_key)
if request.ssl_options is not None:
raise ValueError("ssl_options not supported in curl_httpclient")
if threading.active_count() > 1:
# libcurl/pycurl is not thread-safe by default. When multiple threads
# are used, signals should be disabled. This has the side effect
# of disabling DNS timeouts in some environments (when libcurl is
# not linked against ares), so we don't do it when there is only one
# thread. Applications that use many short-lived threads may need
# to set NOSIGNAL manually in a prepare_curl_callback since
# there may not be any other threads running at the time we call
# threading.activeCount.
curl.setopt(pycurl.NOSIGNAL, 1)
if request.prepare_curl_callback is not None:
request.prepare_curl_callback(curl)
