Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/util/create_test_channel.cc

+/*
+ *
+ * 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 "test/cpp/util/create_test_channel.h"
+
+#include <grpc++/create_channel.h>
+#include <grpc++/security/credentials.h>
+
+#include "test/core/end2end/data/ssl_test_data.h"
+
+namespace grpc {
+
+// When ssl is enabled, if server is empty, override_hostname is used to
+// create channel. Otherwise, connect to server and override hostname if
+// override_hostname is provided.
+// When ssl is not enabled, override_hostname is ignored.
+// Set use_prod_root to true to use the SSL root for connecting to google.
+// In this case, path to the roots pem file must be set via environment variable
+// GRPC_DEFAULT_SSL_ROOTS_FILE_PATH.
+// Otherwise, root for test SSL cert will be used.
+// creds will be used to create a channel when enable_ssl is true.
+// Use examples:
+//   CreateTestChannel(
+//       "1.1.1.1:12345", "override.hostname.com", true, false, creds);
+//   CreateTestChannel("test.google.com:443", "", true, true, creds);
+//   same as above
+//   CreateTestChannel("", "test.google.com:443", true, true, creds);
+std::shared_ptr<Channel> CreateTestChannel(
+    const grpc::string& server, const grpc::string& override_hostname,
+    bool enable_ssl, bool use_prod_roots,
+    const std::shared_ptr<CallCredentials>& creds) {
+  ChannelArguments channel_args;
+  if (enable_ssl) {
+    const char* roots_certs = use_prod_roots ? "" : test_root_cert;
+    SslCredentialsOptions ssl_opts = {roots_certs, "", ""};
+
+    std::shared_ptr<ChannelCredentials> channel_creds =
+        SslCredentials(ssl_opts);
+
+    if (!server.empty() && !override_hostname.empty()) {
+      channel_args.SetSslTargetNameOverride(override_hostname);
+    }
+    const grpc::string& connect_to =
+        server.empty() ? override_hostname : server;
+    if (creds.get()) {
+      channel_creds = CompositeChannelCredentials(channel_creds, creds);
+    }
+    return CreateCustomChannel(connect_to, channel_creds, channel_args);
+  } else {
+    return CreateChannel(server, InsecureChannelCredentials());
+  }
+}
+
+std::shared_ptr<Channel> CreateTestChannel(
+    const grpc::string& server, const grpc::string& override_hostname,
+    bool enable_ssl, bool use_prod_roots) {
+  return CreateTestChannel(server, override_hostname, enable_ssl,
+                           use_prod_roots, std::shared_ptr<CallCredentials>());
+}
+
+// Shortcut for end2end and interop tests.
+std::shared_ptr<Channel> CreateTestChannel(const grpc::string& server,
+                                           bool enable_ssl) {
+  return CreateTestChannel(server, "foo.test.google.fr", enable_ssl, false);
+}
+
+}  // namespace grpc