Merge pull request #460 from nathanielmanistaatgoogle/server_credentials_wrapping

Add a wrapping of grpc_server_credentials.

src/python/setup.py

@@ -38,6 +38,7 @@ _EXTENSION_SOURCES = (
     'src/_adapter/_completion_queue.c',
     'src/_adapter/_error.c',
     'src/_adapter/_server.c',
+    'src/_adapter/_server_credentials.c',
 )
 
 _EXTENSION_INCLUDE_DIRECTORIES = (

src/python/src/_adapter/_c.c

@@ -38,6 +38,7 @@
 #include "_adapter/_channel.h"
 #include "_adapter/_call.h"
 #include "_adapter/_server.h"
+#include "_adapter/_server_credentials.h"
 
 static PyObject *init(PyObject *self, PyObject *args) {
   grpc_init();
@@ -74,4 +75,7 @@ PyMODINIT_FUNC init_c(void) {
   if (pygrpc_add_server(module) == -1) {
     return;
   }
+  if (pygrpc_add_server_credentials(module) == -1) {
+    return;
+  }
 }

src/python/src/_adapter/_c_test.py

@@ -136,6 +136,32 @@ class _CTest(unittest.TestCase):
 
     _c.shut_down()
 
+  def test_server_credentials(self):
+    root_certificates = b'Trust starts here. Really.'
+    first_private_key = b'This is a really bad private key, yo.'
+    first_certificate_chain = b'Trust me! Do I not look trustworty?'
+    second_private_key = b'This is another bad private key, yo.'
+    second_certificate_chain = b'Look into my eyes; you can totes trust me.'
+
+    _c.init()
+
+    server_credentials = _c.ServerCredentials(
+        None, ((first_private_key, first_certificate_chain),))
+    del server_credentials
+    server_credentials = _c.ServerCredentials(
+        root_certificates, ((first_private_key, first_certificate_chain),))
+    del server_credentials
+    server_credentials = _c.ServerCredentials(
+        root_certificates,
+        ((first_private_key, first_certificate_chain),
+         (second_private_key, second_certificate_chain),))
+    del server_credentials
+    with self.assertRaises(TypeError):
+      _c.ServerCredentials(
+          root_certificates, first_private_key, second_certificate_chain)
+
+    _c.shut_down()
+
 
 if __name__ == '__main__':
   unittest.main()

src/python/src/_adapter/_server_credentials.c

+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "_adapter/_server_credentials.h"
+
+#include <Python.h>
+#include <grpc/grpc_security.h>
+#include <grpc/support/alloc.h>
+
+static int pygrpc_server_credentials_init(ServerCredentials *self,
+                                          PyObject *args, PyObject *kwds) {
+  char *root_certificates;
+  PyObject *pair_sequence;
+  Py_ssize_t pair_count;
+  grpc_ssl_pem_key_cert_pair *pairs;
+  int error;
+  PyObject *iterator;
+  int i;
+  PyObject *pair;
+
+  if (!(PyArg_ParseTuple(args, "zO", &root_certificates, &pair_sequence))) {
+    self->c_server_credentials = NULL;
+    return -1;
+  }
+
+  pair_count = PySequence_Length(pair_sequence);
+  if (pair_count == -1) {
+    self->c_server_credentials = NULL;
+    return -1;
+  }
+
+  iterator = PyObject_GetIter(pair_sequence);
+  if (iterator == NULL) {
+    self->c_server_credentials = NULL;
+    return -1;
+  }
+  pairs = gpr_malloc(pair_count * sizeof(grpc_ssl_pem_key_cert_pair));
+  error = 0;
+  for (i = 0; i < pair_count; i++) {
+    pair = PyIter_Next(iterator);
+    if (pair == NULL) {
+      error = 1;
+      break;
+    }
+    if (!(PyArg_ParseTuple(pair, "ss", &pairs[i].private_key,
+                           &pairs[i].cert_chain))) {
+      error = 1;
+      Py_DECREF(pair);
+      break;
+    }
+    Py_DECREF(pair);
+  }
+  Py_DECREF(iterator);
+
+  if (error) {
+    self->c_server_credentials = NULL;
+    gpr_free(pairs);
+    return -1;
+  } else {
+    self->c_server_credentials = grpc_ssl_server_credentials_create(
+        root_certificates, pairs, pair_count);
+    gpr_free(pairs);
+    return 0;
+  }
+}
+
+static void pygrpc_server_credentials_dealloc(ServerCredentials *self) {
+  if (self->c_server_credentials != NULL) {
+    grpc_server_credentials_release(self->c_server_credentials);
+  }
+  self->ob_type->tp_free((PyObject *)self);
+}
+
+PyTypeObject pygrpc_ServerCredentialsType = {
+    PyObject_HEAD_INIT(NULL)0,                     /*ob_size*/
+    "_grpc.ServerCredencials",                     /*tp_name*/
+    sizeof(ServerCredentials),                     /*tp_basicsize*/
+    0,                                             /*tp_itemsize*/
+    (destructor)pygrpc_server_credentials_dealloc, /*tp_dealloc*/
+    0,                                             /*tp_print*/
+    0,                                             /*tp_getattr*/
+    0,                                             /*tp_setattr*/
+    0,                                             /*tp_compare*/
+    0,                                             /*tp_repr*/
+    0,                                             /*tp_as_number*/
+    0,                                             /*tp_as_sequence*/
+    0,                                             /*tp_as_mapping*/
+    0,                                             /*tp_hash */
+    0,                                             /*tp_call*/
+    0,                                             /*tp_str*/
+    0,                                             /*tp_getattro*/
+    0,                                             /*tp_setattro*/
+    0,                                             /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT,                            /*tp_flags*/
+    "Wrapping of grpc_server_credentials.",        /* tp_doc */
+    0,                                             /* tp_traverse */
+    0,                                             /* tp_clear */
+    0,                                             /* tp_richcompare */
+    0,                                             /* tp_weaklistoffset */
+    0,                                             /* tp_iter */
+    0,                                             /* tp_iternext */
+    0,                                             /* tp_methods */
+    0,                                             /* tp_members */
+    0,                                             /* tp_getset */
+    0,                                             /* tp_base */
+    0,                                             /* tp_dict */
+    0,                                             /* tp_descr_get */
+    0,                                             /* tp_descr_set */
+    0,                                             /* tp_dictoffset */
+    (initproc)pygrpc_server_credentials_init,      /* tp_init */
+};
+
+int pygrpc_add_server_credentials(PyObject *module) {
+  pygrpc_ServerCredentialsType.tp_new = PyType_GenericNew;
+  if (PyType_Ready(&pygrpc_ServerCredentialsType) < 0) {
+    PyErr_SetString(PyExc_RuntimeError,
+                    "Error defining pygrpc_ServerCredentialsType!");
+    return -1;
+  }
+  if (PyModule_AddObject(module, "ServerCredentials",
+                         (PyObject *)&pygrpc_ServerCredentialsType) == -1) {
+    PyErr_SetString(PyExc_ImportError,
+                    "Couldn't add ServerCredentials type to module!");
+    return -1;
+  }
+  return 0;
+}

src/python/src/_adapter/_server_credentials.h

+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef _ADAPTER__SERVER_CREDENTIALS_H_
+#define _ADAPTER__SERVER_CREDENTIALS_H_
+
+#include <Python.h>
+#include <grpc/grpc_security.h>
+
+typedef struct {
+  PyObject_HEAD grpc_server_credentials *c_server_credentials;
+} ServerCredentials;
+
+PyTypeObject pygrpc_ServerCredentialsType;
+
+int pygrpc_add_server_credentials(PyObject *module);
+
+#endif /* _ADAPTER__SERVER_CREDENTIALS_H_ */