Initial checkin of gRPC to third_party/

third_party/grpc/src/cpp/client/secure_credentials.h

+/*
+ *
+ * Copyright 2015-2016, 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 GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H
+#define GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H
+
+#include <grpc/grpc_security.h>
+
+#include <grpc++/support/config.h>
+#include <grpc++/security/credentials.h>
+
+#include "src/cpp/server/thread_pool_interface.h"
+
+namespace grpc {
+
+class SecureChannelCredentials GRPC_FINAL : public ChannelCredentials {
+ public:
+  explicit SecureChannelCredentials(grpc_channel_credentials* c_creds);
+  ~SecureChannelCredentials() { grpc_channel_credentials_release(c_creds_); }
+  grpc_channel_credentials* GetRawCreds() { return c_creds_; }
+
+  std::shared_ptr<grpc::Channel> CreateChannel(
+      const string& target, const grpc::ChannelArguments& args) GRPC_OVERRIDE;
+  SecureChannelCredentials* AsSecureCredentials() GRPC_OVERRIDE { return this; }
+
+ private:
+  grpc_channel_credentials* const c_creds_;
+};
+
+class SecureCallCredentials GRPC_FINAL : public CallCredentials {
+ public:
+  explicit SecureCallCredentials(grpc_call_credentials* c_creds);
+  ~SecureCallCredentials() { grpc_call_credentials_release(c_creds_); }
+  grpc_call_credentials* GetRawCreds() { return c_creds_; }
+
+  bool ApplyToCall(grpc_call* call) GRPC_OVERRIDE;
+  SecureCallCredentials* AsSecureCredentials() GRPC_OVERRIDE { return this; }
+
+ private:
+  grpc_call_credentials* const c_creds_;
+};
+
+class MetadataCredentialsPluginWrapper GRPC_FINAL {
+ public:
+  static void Destroy(void* wrapper);
+  static void GetMetadata(void* wrapper, grpc_auth_metadata_context context,
+                          grpc_credentials_plugin_metadata_cb cb,
+                          void* user_data);
+
+  explicit MetadataCredentialsPluginWrapper(
+      std::unique_ptr<MetadataCredentialsPlugin> plugin);
+
+ private:
+  void InvokePlugin(grpc_auth_metadata_context context,
+                    grpc_credentials_plugin_metadata_cb cb, void* user_data);
+  std::unique_ptr<ThreadPoolInterface> thread_pool_;
+  std::unique_ptr<MetadataCredentialsPlugin> plugin_;
+};
+
+}  // namespace grpc
+
+#endif  // GRPC_INTERNAL_CPP_CLIENT_SECURE_CREDENTIALS_H