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/*
*
* Copyright 2015-2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "test/cpp/util/create_test_channel.h"
#include <grpc/support/log.h>
#include <grpcpp/create_channel.h>
#include <grpcpp/security/credentials.h>
#include "test/cpp/util/test_credentials_provider.h"
namespace grpc {
namespace {
const char kProdTlsCredentialsType[] = "prod_ssl";
class SslCredentialProvider : public testing::CredentialTypeProvider {
public:
std::shared_ptr<ChannelCredentials> GetChannelCredentials(
grpc::ChannelArguments* args) override {
return SslCredentials(SslCredentialsOptions());
}
std::shared_ptr<ServerCredentials> GetServerCredentials() override {
return nullptr;
}
};
gpr_once g_once_init_add_prod_ssl_provider = GPR_ONCE_INIT;
// Register ssl with non-test roots type to the credentials provider.
void AddProdSslType() {
testing::GetCredentialsProvider()->AddSecureType(
kProdTlsCredentialsType, std::unique_ptr<testing::CredentialTypeProvider>(
new SslCredentialProvider));
}
} // namespace
// When cred_type is 'ssl', if server is empty, override_hostname is used to
// create channel. Otherwise, connect to server and override hostname if
// override_hostname is provided.
// When cred_type is not 'ssl', 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 cred_type is 'ssl'.
// Use examples:
// CreateTestChannel(
// "1.1.1.1:12345", "ssl", "override.hostname.com", false, creds);
// CreateTestChannel("test.google.com:443", "ssl", "", true, creds);
// same as above
// CreateTestChannel("", "ssl", "test.google.com:443", true, creds);
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, const grpc::string& cred_type,
const grpc::string& override_hostname, bool use_prod_roots,
const std::shared_ptr<CallCredentials>& creds,
const ChannelArguments& args) {
ChannelArguments channel_args(args);
std::shared_ptr<ChannelCredentials> channel_creds;
if (cred_type.empty()) {
return CreateCustomChannel(server, InsecureChannelCredentials(), args);
} else if (cred_type == testing::kTlsCredentialsType) { // cred_type == "ssl"
if (use_prod_roots) {
gpr_once_init(&g_once_init_add_prod_ssl_provider, &AddProdSslType);
channel_creds = testing::GetCredentialsProvider()->GetChannelCredentials(
kProdTlsCredentialsType, &channel_args);
if (!server.empty() && !override_hostname.empty()) {
channel_args.SetSslTargetNameOverride(override_hostname);
}
} else {
// override_hostname is discarded as the provider handles it.
channel_creds = testing::GetCredentialsProvider()->GetChannelCredentials(
testing::kTlsCredentialsType, &channel_args);
}
GPR_ASSERT(channel_creds != nullptr);
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 {
channel_creds = testing::GetCredentialsProvider()->GetChannelCredentials(
cred_type, &channel_args);
GPR_ASSERT(channel_creds != nullptr);
return CreateCustomChannel(server, channel_creds, args);
}
}
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, const grpc::string& override_hostname,
testing::transport_security security_type, bool use_prod_roots,
const std::shared_ptr<CallCredentials>& creds,
const ChannelArguments& args) {
grpc::string type =
security_type == testing::ALTS
? testing::kAltsCredentialsType
: (security_type == testing::TLS ? testing::kTlsCredentialsType
: testing::kInsecureCredentialsType);
return CreateTestChannel(server, type, override_hostname, use_prod_roots,
creds, args);
}
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, const grpc::string& override_hostname,
testing::transport_security security_type, bool use_prod_roots,
const std::shared_ptr<CallCredentials>& creds) {
return CreateTestChannel(server, override_hostname, security_type,
use_prod_roots, creds, ChannelArguments());
}
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, const grpc::string& override_hostname,
testing::transport_security security_type, bool use_prod_roots) {
return CreateTestChannel(server, override_hostname, security_type,
use_prod_roots, std::shared_ptr<CallCredentials>());
}
// Shortcut for end2end and interop tests.
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, testing::transport_security security_type) {
return CreateTestChannel(server, "foo.test.google.fr", security_type, false);
}
std::shared_ptr<Channel> CreateTestChannel(
const grpc::string& server, const grpc::string& credential_type,
const std::shared_ptr<CallCredentials>& creds) {
ChannelArguments channel_args;
std::shared_ptr<ChannelCredentials> channel_creds =
testing::GetCredentialsProvider()->GetChannelCredentials(credential_type,
&channel_args);
GPR_ASSERT(channel_creds != nullptr);
if (creds.get()) {
channel_creds = CompositeChannelCredentials(channel_creds, creds);
}
return CreateCustomChannel(server, channel_creds, channel_args);
}
} // namespace grpc
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