Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2015, Google Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 34 | /* |
| 35 | A command line tool to talk to any grpc server. |
| 36 | Example of talking to grpc interop server: |
| 37 | 1. Prepare request binary file: |
| 38 | a. create a text file input.txt, containing the following: |
| 39 | response_size: 10 |
| 40 | payload: { |
| 41 | body: "hello world" |
| 42 | } |
| 43 | b. under grpc/ run |
| 44 | protoc --proto_path=test/cpp/interop/ \ |
| 45 | --encode=grpc.testing.SimpleRequest test/cpp/interop/messages.proto \ |
| 46 | < input.txt > input.bin |
| 47 | 2. Start a server |
| 48 | make interop_server && bins/opt/interop_server --port=50051 |
| 49 | 3. Run the tool |
| 50 | make grpc_cli && bins/opt/grpc_cli call localhost:50051 \ |
| 51 | /grpc.testing.TestService/UnaryCall --enable_ssl=false \ |
| 52 | --input_binary_file=input.bin --output_binary_file=output.bin |
| 53 | 4. Decode response |
| 54 | protoc --proto_path=test/cpp/interop/ \ |
| 55 | --decode=grpc.testing.SimpleResponse test/cpp/interop/messages.proto \ |
| 56 | < output.bin > output.txt |
| 57 | 5. Now the text form of response should be in output.txt |
| 58 | */ |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 59 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 60 | #include <fstream> |
| 61 | #include <iostream> |
| 62 | #include <sstream> |
| 63 | |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 64 | #include <gflags/gflags.h> |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 65 | #include <grpc++/byte_buffer.h> |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 66 | #include <grpc++/channel_arguments.h> |
| 67 | #include <grpc++/channel_interface.h> |
| 68 | #include <grpc++/client_context.h> |
| 69 | #include <grpc++/create_channel.h> |
| 70 | #include <grpc++/credentials.h> |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 71 | #include <grpc++/generic_stub.h> |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 72 | #include <grpc++/status.h> |
| 73 | #include <grpc++/stream.h> |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 74 | |
| 75 | #include <grpc/grpc.h> |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 76 | #include <grpc/support/log.h> |
| 77 | #include <grpc/support/slice.h> |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 78 | |
| 79 | // In some distros, gflags is in the namespace google, and in some others, |
| 80 | // in gflags. This hack is enabling us to find both. |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 81 | namespace google {} |
| 82 | namespace gflags {} |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 83 | using namespace google; |
| 84 | using namespace gflags; |
| 85 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 86 | DEFINE_bool(enable_ssl, true, "Whether to use ssl/tls."); |
| 87 | DEFINE_bool(use_auth, false, "Whether to create default google credentials."); |
| 88 | DEFINE_string(input_binary_file, "", |
| 89 | "Path to input file containing serialized request."); |
| 90 | DEFINE_string(output_binary_file, "output.bin", |
| 91 | "Path to output file to write serialized response."); |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 92 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 93 | void* tag(int i) { return (void*)(gpr_intptr) i; } |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 94 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 95 | void Call(std::shared_ptr<grpc::ChannelInterface> channel, |
| 96 | const grpc::string& method) { |
| 97 | std::unique_ptr<grpc::GenericStub> stub(new grpc::GenericStub(channel)); |
| 98 | grpc::ClientContext ctx; |
| 99 | grpc::CompletionQueue cq; |
| 100 | std::unique_ptr<grpc::GenericClientAsyncReaderWriter> call( |
| 101 | stub->Call(&ctx, method, &cq, tag(1))); |
| 102 | void* got_tag; |
| 103 | bool ok; |
| 104 | cq.Next(&got_tag, &ok); |
| 105 | GPR_ASSERT(ok); |
| 106 | |
| 107 | std::ifstream input_file(FLAGS_input_binary_file, |
| 108 | std::ios::in | std::ios::binary); |
| 109 | std::stringstream input_stream; |
| 110 | input_stream << input_file.rdbuf(); |
| 111 | |
| 112 | gpr_slice s = gpr_slice_from_copied_string(input_stream.str().c_str()); |
| 113 | grpc::Slice req_slice(s, grpc::Slice::STEAL_REF); |
| 114 | grpc::ByteBuffer request(&req_slice, 1); |
| 115 | call->Write(request, tag(2)); |
| 116 | cq.Next(&got_tag, &ok); |
| 117 | GPR_ASSERT(ok); |
| 118 | call->WritesDone(tag(3)); |
| 119 | cq.Next(&got_tag, &ok); |
| 120 | GPR_ASSERT(ok); |
| 121 | grpc::ByteBuffer recv_buffer; |
| 122 | call->Read(&recv_buffer, tag(4)); |
| 123 | cq.Next(&got_tag, &ok); |
| 124 | if (!ok) { |
| 125 | std::cout << "Failed to read response." << std::endl; |
| 126 | return; |
| 127 | } |
| 128 | grpc::Status status; |
| 129 | call->Finish(&status, tag(5)); |
| 130 | cq.Next(&got_tag, &ok); |
| 131 | GPR_ASSERT(ok); |
| 132 | |
| 133 | if (status.IsOk()) { |
| 134 | std::cout << "RPC finished with OK status." << std::endl; |
| 135 | std::vector<grpc::Slice> slices; |
| 136 | recv_buffer.Dump(&slices); |
| 137 | |
| 138 | std::ofstream output_file(FLAGS_output_binary_file, |
| 139 | std::ios::trunc | std::ios::binary); |
| 140 | for (size_t i = 0; i < slices.size(); i++) { |
| 141 | output_file.write(reinterpret_cast<const char*>(slices[i].begin()), |
| 142 | slices[i].size()); |
| 143 | } |
| 144 | } else { |
| 145 | std::cout << "RPC finished with status code " << status.code() |
| 146 | << " details: " << status.details() << std::endl; |
| 147 | } |
| 148 | } |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 149 | |
| 150 | int main(int argc, char** argv) { |
| 151 | grpc_init(); |
| 152 | |
| 153 | ParseCommandLineFlags(&argc, &argv, true); |
| 154 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 155 | if (argc < 4 || grpc::string(argv[1]) != "call") { |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 156 | std::cout << "Usage: grpc_cli call server_host:port full_method_string\n" |
| 157 | << "Example: grpc_cli call service.googleapis.com " |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 158 | << "/grpc.testing.TestService/UnaryCall " |
| 159 | << "--input_binary_file=input.bin --output_binary_file=output.bin" |
| 160 | << std::endl; |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 161 | } |
| 162 | grpc::string server_address(argv[2]); |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 163 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 164 | if (FLAGS_input_binary_file.empty()) { |
| 165 | std::cout << "Missing --input_binary_file for serialized request." |
| 166 | << std::endl; |
| 167 | return 1; |
| 168 | } |
| 169 | std::cout << "connecting to " << server_address << std::endl; |
| 170 | |
| 171 | // TODO(yangg) basic check of method string |
| 172 | |
| 173 | std::unique_ptr<grpc::Credentials> creds; |
| 174 | if (!FLAGS_enable_ssl) { |
| 175 | creds = grpc::InsecureCredentials(); |
| 176 | } else { |
| 177 | if (FLAGS_use_auth) { |
| 178 | creds = grpc::GoogleDefaultCredentials(); |
| 179 | } else { |
| 180 | creds = grpc::SslCredentials(grpc::SslCredentialsOptions()); |
| 181 | } |
| 182 | } |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 183 | std::shared_ptr<grpc::ChannelInterface> channel = |
| 184 | grpc::CreateChannel(server_address, creds, grpc::ChannelArguments()); |
| 185 | |
Yang Gao | ced2b89 | 2015-03-26 22:59:54 -0700 | [diff] [blame^] | 186 | Call(channel, method); |
Yang Gao | a5e20d3 | 2015-03-25 09:55:20 -0700 | [diff] [blame] | 187 | |
| 188 | channel.reset(); |
| 189 | grpc_shutdown(); |
| 190 | return 0; |
| 191 | } |