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				|  |  | +/*
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				|  |  | + *
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				|  |  | + * Copyright 2015, Google Inc.
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				|  |  | + * All rights reserved.
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				|  |  | + *
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				|  |  | + * Redistribution and use in source and binary forms, with or without
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				|  |  | + * modification, are permitted provided that the following conditions are
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				|  |  | + * met:
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				|  |  | + *
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				|  |  | + *     * Redistributions of source code must retain the above copyright
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				|  |  | + * notice, this list of conditions and the following disclaimer.
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				|  |  | + *     * Redistributions in binary form must reproduce the above
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				|  |  | + * copyright notice, this list of conditions and the following disclaimer
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				|  |  | + * in the documentation and/or other materials provided with the
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				|  |  | + * distribution.
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				|  |  | + *     * Neither the name of Google Inc. nor the names of its
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				|  |  | + * contributors may be used to endorse or promote products derived from
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				|  |  | + * this software without specific prior written permission.
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				|  |  | + *
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				|  |  | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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				|  |  | + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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				|  |  | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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				|  |  | + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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				|  |  | + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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				|  |  | + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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				|  |  | + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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				|  |  | + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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				|  |  | + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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				|  |  | + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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				|  |  | + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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				|  |  | + *
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				|  |  | + */
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				|  |  | +
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				|  |  | +#include "grpc/_adapter/_client_credentials.h"
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				|  |  | +
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				|  |  | +#include <Python.h>
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				|  |  | +#include <grpc/grpc_security.h>
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				|  |  | +#include <grpc/support/alloc.h>
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				|  |  | +
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				|  |  | +static int pygrpc_client_credentials_init(ClientCredentials *self,
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				|  |  | +                                          PyObject *args, PyObject *kwds) {
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				|  |  | +  char *root_certificates;
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				|  |  | +  grpc_ssl_pem_key_cert_pair key_certificate_pair;
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				|  |  | +  static char *kwlist[] = {"root_certificates", "private_key",
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				|  |  | +                           "certificate_chain", NULL};
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				|  |  | +
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				|  |  | +  if (!PyArg_ParseTupleAndKeywords(args, kwds, "zzz:ClientCredentials", kwlist,
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				|  |  | +                                   &root_certificates,
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				|  |  | +                                   &key_certificate_pair.private_key,
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				|  |  | +                                   &key_certificate_pair.cert_chain)) {
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				|  |  | +    return -1;
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  if (key_certificate_pair.private_key != NULL && key_certificate_pair.cert_chain != NULL) {
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				|  |  | +    self->c_client_credentials =
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				|  |  | +        grpc_ssl_credentials_create(root_certificates, &key_certificate_pair);
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				|  |  | +  } else {
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				|  |  | +    self->c_client_credentials =
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				|  |  | +        grpc_ssl_credentials_create(root_certificates, NULL);
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				|  |  | +  }
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				|  |  | +}
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				|  |  | +
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				|  |  | +static void pygrpc_client_credentials_dealloc(ClientCredentials *self) {
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				|  |  | +  if (self->c_client_credentials != NULL) {
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				|  |  | +    grpc_credentials_release(self->c_client_credentials);
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				|  |  | +  }
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				|  |  | +  self->ob_type->tp_free((PyObject *)self);
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				|  |  | +}
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				|  |  | +
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				|  |  | +PyTypeObject pygrpc_ClientCredentialsType = {
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				|  |  | +    PyVarObject_HEAD_INIT(NULL, 0)
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				|  |  | +    "_grpc.ClientCredencials",                      /*tp_name*/
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				|  |  | +    sizeof(ClientCredentials),                      /*tp_basicsize*/
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				|  |  | +    0,                                              /*tp_itemsize*/
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				|  |  | +    (destructor)pygrpc_client_credentials_dealloc,  /*tp_dealloc*/
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				|  |  | +    0,                                              /*tp_print*/
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				|  |  | +    0,                                              /*tp_getattr*/
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				|  |  | +    0,                                              /*tp_setattr*/
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				|  |  | +    0,                                              /*tp_compare*/
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				|  |  | +    0,                                              /*tp_repr*/
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				|  |  | +    0,                                              /*tp_as_number*/
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				|  |  | +    0,                                              /*tp_as_sequence*/
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				|  |  | +    0,                                              /*tp_as_mapping*/
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				|  |  | +    0,                                              /*tp_hash */
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				|  |  | +    0,                                              /*tp_call*/
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				|  |  | +    0,                                              /*tp_str*/
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				|  |  | +    0,                                              /*tp_getattro*/
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				|  |  | +    0,                                              /*tp_setattro*/
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				|  |  | +    0,                                              /*tp_as_buffer*/
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				|  |  | +    Py_TPFLAGS_DEFAULT,                             /*tp_flags*/
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				|  |  | +    "Wrapping of grpc_credentials.",                /* tp_doc */
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				|  |  | +    0,                                              /* tp_traverse */
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				|  |  | +    0,                                              /* tp_clear */
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				|  |  | +    0,                                              /* tp_richcompare */
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				|  |  | +    0,                                              /* tp_weaklistoffset */
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				|  |  | +    0,                                              /* tp_iter */
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				|  |  | +    0,                                              /* tp_iternext */
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				|  |  | +    0,                                              /* tp_methods */
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				|  |  | +    0,                                              /* tp_members */
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				|  |  | +    0,                                              /* tp_getset */
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				|  |  | +    0,                                              /* tp_base */
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				|  |  | +    0,                                              /* tp_dict */
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				|  |  | +    0,                                              /* tp_descr_get */
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				|  |  | +    0,                                              /* tp_descr_set */
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				|  |  | +    0,                                              /* tp_dictoffset */
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				|  |  | +    (initproc)pygrpc_client_credentials_init,       /* tp_init */
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				|  |  | +    0,                                              /* tp_alloc */
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				|  |  | +    PyType_GenericNew,                              /* tp_new */
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				|  |  | +};
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				|  |  | +
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				|  |  | +int pygrpc_add_client_credentials(PyObject *module) {
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				|  |  | +  if (PyType_Ready(&pygrpc_ClientCredentialsType) < 0) {
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				|  |  | +    return -1;
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				|  |  | +  }
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				|  |  | +  if (PyModule_AddObject(module, "ClientCredentials",
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				|  |  | +                         (PyObject *)&pygrpc_ClientCredentialsType) == -1) {
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				|  |  | +    return -1;
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				|  |  | +  }
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				|  |  | +  return 0;
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				|  |  | +}
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