1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // https://developers.google.com/protocol-buffers/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are 7 // met: 8 // 9 // * Redistributions of source code must retain the above copyright 10 // notice, this list of conditions and the following disclaimer. 11 // * Redistributions in binary form must reproduce the above 12 // copyright notice, this list of conditions and the following disclaimer 13 // in the documentation and/or other materials provided with the 14 // distribution. 15 // * Neither the name of Google Inc. nor the names of its 16 // contributors may be used to endorse or promote products derived from 17 // this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 #include <errno.h> 32 #include <stdarg.h> 33 #include <unistd.h> 34 35 #include "conformance.pb.h" 36 #include <google/protobuf/util/json_util.h> 37 #include <google/protobuf/util/type_resolver_util.h> 38 39 using conformance::ConformanceRequest; 40 using conformance::ConformanceResponse; 41 using conformance::TestAllTypes; 42 using google::protobuf::Descriptor; 43 using google::protobuf::DescriptorPool; 44 using google::protobuf::internal::scoped_ptr; 45 using google::protobuf::util::BinaryToJsonString; 46 using google::protobuf::util::JsonToBinaryString; 47 using google::protobuf::util::NewTypeResolverForDescriptorPool; 48 using google::protobuf::util::Status; 49 using google::protobuf::util::TypeResolver; 50 using std::string; 51 52 static const char kTypeUrlPrefix[] = "type.googleapis.com"; 53 54 static string GetTypeUrl(const Descriptor* message) { 55 return string(kTypeUrlPrefix) + "/" + message->full_name(); 56 } 57 58 int test_count = 0; 59 bool verbose = false; 60 TypeResolver* type_resolver; 61 string* type_url; 62 63 64 bool CheckedRead(int fd, void *buf, size_t len) { 65 size_t ofs = 0; 66 while (len > 0) { 67 ssize_t bytes_read = read(fd, (char*)buf + ofs, len); 68 69 if (bytes_read == 0) return false; 70 71 if (bytes_read < 0) { 72 GOOGLE_LOG(FATAL) << "Error reading from test runner: " << strerror(errno); 73 } 74 75 len -= bytes_read; 76 ofs += bytes_read; 77 } 78 79 return true; 80 } 81 82 void CheckedWrite(int fd, const void *buf, size_t len) { 83 if (write(fd, buf, len) != len) { 84 GOOGLE_LOG(FATAL) << "Error writing to test runner: " << strerror(errno); 85 } 86 } 87 88 void DoTest(const ConformanceRequest& request, ConformanceResponse* response) { 89 TestAllTypes test_message; 90 91 switch (request.payload_case()) { 92 case ConformanceRequest::kProtobufPayload: 93 if (!test_message.ParseFromString(request.protobuf_payload())) { 94 // Getting parse details would involve something like: 95 // http://stackoverflow.com/questions/22121922/how-can-i-get-more-details-about-errors-generated-during-protobuf-parsing-c 96 response->set_parse_error("Parse error (no more details available)."); 97 return; 98 } 99 break; 100 101 case ConformanceRequest::kJsonPayload: { 102 string proto_binary; 103 Status status = JsonToBinaryString(type_resolver, *type_url, 104 request.json_payload(), &proto_binary); 105 if (!status.ok()) { 106 response->set_parse_error(string("Parse error: ") + 107 status.error_message().as_string()); 108 return; 109 } 110 111 if (!test_message.ParseFromString(proto_binary)) { 112 response->set_runtime_error( 113 "Parsing JSON generates invalid proto output."); 114 return; 115 } 116 break; 117 } 118 119 case ConformanceRequest::PAYLOAD_NOT_SET: 120 GOOGLE_LOG(FATAL) << "Request didn't have payload."; 121 break; 122 } 123 124 switch (request.requested_output_format()) { 125 case conformance::UNSPECIFIED: 126 GOOGLE_LOG(FATAL) << "Unspecified output format"; 127 break; 128 129 case conformance::PROTOBUF: 130 GOOGLE_CHECK( 131 test_message.SerializeToString(response->mutable_protobuf_payload())); 132 break; 133 134 case conformance::JSON: { 135 string proto_binary; 136 GOOGLE_CHECK(test_message.SerializeToString(&proto_binary)); 137 Status status = BinaryToJsonString(type_resolver, *type_url, proto_binary, 138 response->mutable_json_payload()); 139 if (!status.ok()) { 140 response->set_serialize_error( 141 string("Failed to serialize JSON output: ") + 142 status.error_message().as_string()); 143 return; 144 } 145 break; 146 } 147 148 default: 149 GOOGLE_LOG(FATAL) << "Unknown output format: " 150 << request.requested_output_format(); 151 } 152 } 153 154 bool DoTestIo() { 155 string serialized_input; 156 string serialized_output; 157 ConformanceRequest request; 158 ConformanceResponse response; 159 uint32_t bytes; 160 161 if (!CheckedRead(STDIN_FILENO, &bytes, sizeof(uint32_t))) { 162 // EOF. 163 return false; 164 } 165 166 serialized_input.resize(bytes); 167 168 if (!CheckedRead(STDIN_FILENO, (char*)serialized_input.c_str(), bytes)) { 169 GOOGLE_LOG(ERROR) << "Unexpected EOF on stdin. " << strerror(errno); 170 } 171 172 if (!request.ParseFromString(serialized_input)) { 173 GOOGLE_LOG(FATAL) << "Parse of ConformanceRequest proto failed."; 174 return false; 175 } 176 177 DoTest(request, &response); 178 179 response.SerializeToString(&serialized_output); 180 181 bytes = serialized_output.size(); 182 CheckedWrite(STDOUT_FILENO, &bytes, sizeof(uint32_t)); 183 CheckedWrite(STDOUT_FILENO, serialized_output.c_str(), bytes); 184 185 if (verbose) { 186 fprintf(stderr, "conformance-cpp: request=%s, response=%s\n", 187 request.ShortDebugString().c_str(), 188 response.ShortDebugString().c_str()); 189 } 190 191 test_count++; 192 193 return true; 194 } 195 196 int main() { 197 type_resolver = NewTypeResolverForDescriptorPool( 198 kTypeUrlPrefix, DescriptorPool::generated_pool()); 199 type_url = new string(GetTypeUrl(TestAllTypes::descriptor())); 200 while (1) { 201 if (!DoTestIo()) { 202 fprintf(stderr, "conformance-cpp: received EOF from test runner " 203 "after %d tests, exiting\n", test_count); 204 return 0; 205 } 206 } 207 } 208
