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- /*
- Copyright (c) 2021 Sogou, Inc.
- 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 <errno.h>
- #include <vector>
- #include <string>
- #include <google/protobuf/util/json_util.h>
- #include <google/protobuf/util/type_resolver_util.h>
- #include <google/protobuf/io/zero_copy_stream_impl_lite.h>
- #include <workflow/HttpUtil.h>
- #include <workflow/StringUtil.h>
- #include <workflow/json_parser.h>
- #include "rpc_message_trpc.h"
- #include "rpc_meta_trpc.pb.h"
- #include "rpc_basic.h"
- #include "rpc_compress.h"
- #include "rpc_zero_copy_stream.h"
- #include "rpc_module.h"
- namespace srpc
- {
- namespace TRPCHttpHeaders
- {
- const std::string CompressType = "Content-Encoding";
- const std::string DataType = "Content-Type";
- const std::string CallType = "trpc-call-type";
- const std::string RequestId = "trpc-request-id";
- const std::string Timeout = "trpc-timeout";
- const std::string Caller = "trpc-caller";
- const std::string Callee = "trpc-callee";
- const std::string Func = "trpc-func";
- const std::string Ret = "trpc-ret";
- const std::string FuncRet = "trpc-func-ret";
- const std::string ErrorMsg = "trpc-error-msg";
- const std::string MessageType = "trpc-message-type";
- const std::string TransInfo = "trpc-trans-info";
- const std::string SRPCStatus = "SRPC-Status";
- const std::string SRPCError = "SRPC-Error";
- }
- namespace TRPCHttpHeadersCode
- {
- enum
- {
- Unknown = 0,
- CompressType,
- DataType,
- CallType,
- RequestId,
- Timeout,
- Caller,
- Callee,
- Func,
- Ret,
- FuncRet,
- ErrorMsg,
- MessageType,
- TransInfo,
- SRPCStatus,
- SRPCError
- };
- }
- struct CaseCmp
- {
- bool operator()(const std::string& lhs, const std::string& rhs) const
- {
- return strcasecmp(lhs.c_str(), rhs.c_str()) < 0;
- }
- };
- static int GetHttpHeadersCode(const std::string& header)
- {
- static const std::map<std::string, int, CaseCmp> M =
- {
- {TRPCHttpHeaders::CompressType, TRPCHttpHeadersCode::CompressType},
- {TRPCHttpHeaders::DataType, TRPCHttpHeadersCode::DataType},
- {TRPCHttpHeaders::CallType, TRPCHttpHeadersCode::CallType},
- {TRPCHttpHeaders::RequestId, TRPCHttpHeadersCode::RequestId},
- {TRPCHttpHeaders::Timeout, TRPCHttpHeadersCode::Timeout},
- {TRPCHttpHeaders::Caller, TRPCHttpHeadersCode::Caller},
- {TRPCHttpHeaders::Callee, TRPCHttpHeadersCode::Callee},
- {TRPCHttpHeaders::Func, TRPCHttpHeadersCode::Func},
- {TRPCHttpHeaders::Ret, TRPCHttpHeadersCode::Ret},
- {TRPCHttpHeaders::FuncRet, TRPCHttpHeadersCode::FuncRet},
- {TRPCHttpHeaders::ErrorMsg, TRPCHttpHeadersCode::ErrorMsg},
- {TRPCHttpHeaders::MessageType, TRPCHttpHeadersCode::MessageType},
- {TRPCHttpHeaders::TransInfo, TRPCHttpHeadersCode::TransInfo},
- {TRPCHttpHeaders::SRPCStatus, TRPCHttpHeadersCode::SRPCStatus},
- {TRPCHttpHeaders::SRPCError, TRPCHttpHeadersCode::SRPCError}
- };
- auto it = M.find(header);
- return it == M.end() ? TRPCHttpHeadersCode::Unknown : it->second;
- }
- static int GetHttpDataType(const std::string &type)
- {
- static const std::unordered_map<std::string, int> M =
- {
- {"application/json", RPCDataJson},
- {"application/x-protobuf", RPCDataProtobuf},
- {"application/protobuf", RPCDataProtobuf},
- {"application/pb", RPCDataProtobuf},
- {"application/proto", RPCDataProtobuf}
- };
- auto it = M.find(type);
- return it == M.end() ? RPCDataUndefined : it->second;
- }
- static std::string GetHttpDataTypeStr(int type)
- {
- switch (type)
- {
- case RPCDataJson:
- return "application/json";
- case RPCDataProtobuf:
- return "application/proto";
- }
- return "";
- }
- static int GetHttpCompressType(const std::string &type)
- {
- static const std::unordered_map<std::string, int> M =
- {
- {"identity", RPCCompressNone},
- {"x-snappy", RPCCompressSnappy},
- {"gzip", RPCCompressGzip},
- {"deflate", RPCCompressZlib},
- {"x-lz4", RPCCompressLz4}
- };
- auto it = M.find(type);
- return it == M.end() ? RPCCompressNone : it->second;
- }
- static std::string GetHttpCompressTypeStr(int type)
- {
- switch (type)
- {
- case RPCCompressNone:
- return "identity";
- case RPCCompressSnappy:
- return "x-snappy";
- case RPCCompressGzip:
- return "gzip";
- case RPCCompressZlib:
- return "deflate";
- case RPCCompressLz4:
- return "x-lz4";
- }
- return "";
- }
- static int Base64Encode(const std::string& in, std::string& out)
- {
- size_t len = in.length();
- size_t base64_len = (len + 2) / 3 * 4;
- const unsigned char *f = (const unsigned char *)in.c_str();
- out.resize(base64_len + 1);
- EVP_EncodeBlock((unsigned char *)&out[0], f, len);
- out.pop_back();
- return 0;
- }
- static int Base64Decode(const char *in, size_t len, std::string& out)
- {
- size_t origin_len = (len + 3) / 4 * 3;
- const unsigned char *f = (const unsigned char *)in;
- int ret;
- int zeros = 0;
- out.resize(origin_len);
- ret = EVP_DecodeBlock((unsigned char *)&out[0], f, len);
- if (ret < 0)
- return ret;
- while (len != 0 && in[--len] == '=')
- zeros++;
- if (zeros > 2)
- return -1;
- out.resize(ret - zeros);
- return 0;
- }
- static std::string JsonEscape(const std::string& in)
- {
- std::string out;
- out.reserve(in.size());
- for (char c : in)
- {
- switch (c)
- {
- case '\"':
- out.append("\\\"");
- break;
- case '\\':
- out.append("\\\\");
- break;
- case '/':
- out.append("\\/");
- break;
- case '\b':
- out.append("\\b");
- break;
- case '\f':
- out.append("\\f");
- break;
- case '\n':
- out.append("\\n");
- break;
- case '\r':
- out.append("\\r");
- break;
- case '\t':
- out.append("\\t");
- break;
- default:
- out.push_back(c);
- break;
- }
- }
- return out;
- }
- using TransInfoMap = ::google::protobuf::Map<::std::string, ::std::string>;
- static int DecodeTransInfo(const std::string& content, TransInfoMap& map)
- {
- json_value_t *json;
- json_object_t *obj;
- const json_value_t *value;
- const char *name, *str;
- size_t len;
- std::string decoded;
- int errno_bak = errno;
- errno = EBADMSG;
- json = json_value_parse(content.c_str());
- if (json == nullptr)
- return -1;
- errno = errno_bak;
- if (json_value_type(json) != JSON_VALUE_OBJECT)
- {
- json_value_destroy(json);
- return -1;
- }
- obj = json_value_object(json);
- json_object_for_each(name, value, obj)
- {
- str = json_value_string(value);
- if (!name || !str)
- continue;
- len = strlen(str);
- if (Base64Decode(str, len, decoded) == 0)
- map[name].assign(std::move(decoded));
- else
- map[name].assign(str, len);
- }
- json_value_destroy(json);
- return 0;
- }
- static std::string EncodeTransInfo(const TransInfoMap& map)
- {
- std::string s;
- std::string encoded;
- s.append("{");
- for (const auto& kv : map)
- {
- Base64Encode(kv.second, encoded);
- s.append("\"").append(JsonEscape(kv.first)).append("\":");
- s.append("\"").append(encoded).append("\",");
- }
- if (s.back() == ',')
- s.back() = '}';
- else
- s.push_back('}');
- return s;
- }
- static constexpr const char *kTypePrefix = "type.googleapis.com";
- class ResolverInstance
- {
- public:
- static google::protobuf::util::TypeResolver *get_resolver()
- {
- static ResolverInstance kInstance;
- return kInstance.resolver_;
- }
- private:
- ResolverInstance()
- {
- resolver_ = google::protobuf::util::NewTypeResolverForDescriptorPool(
- kTypePrefix, google::protobuf::DescriptorPool::generated_pool());
- }
- ~ResolverInstance() { delete resolver_; }
- google::protobuf::util::TypeResolver *resolver_;
- };
- static inline std::string GetTypeUrl(const ProtobufIDLMessage *pb_msg)
- {
- return std::string(kTypePrefix) + "/" + pb_msg->GetDescriptor()->full_name();
- }
- TRPCMessage::TRPCMessage()
- {
- this->nreceived = 0;
- this->meta_buf = NULL;
- this->meta_len = 0;
- this->message_len = 0;
- memset(this->header, 0, TRPC_HEADER_SIZE);
- this->message = new RPCBuffer();
- }
- TRPCMessage::~TRPCMessage()
- {
- delete this->message;
- delete []this->meta_buf;
- delete this->meta;
- }
- TRPCRequest::TRPCRequest()
- {
- this->meta = new RequestProtocol();
- }
- TRPCResponse::TRPCResponse()
- {
- this->meta = new ResponseProtocol();
- }
- int TRPCMessage::encode(struct iovec vectors[], int max, size_t size_limit)
- {
- size_t sz = TRPC_HEADER_SIZE + this->meta_len + this->message_len;
- if (sz > 0x7FFFFFFF)
- {
- errno = EOVERFLOW;
- return -1;
- }
- int ret;
- char *p = this->header;
- *(uint16_t *)p = ntohs((uint16_t)TrpcMagic::TRPC_MAGIC_VALUE);
- p += 2;
- p += 1; // TrpcDataFrameType
- p += 1; // TrpcDataFrameState
- *(uint32_t *)(p) = htonl((uint32_t)sz);
- p += 4;
- *(uint16_t *)(p) = htons((uint16_t)this->meta_len);
- // 2: stream_id + 4 : reserved
- vectors[0].iov_base = this->header;
- vectors[0].iov_len = TRPC_HEADER_SIZE;
- vectors[1].iov_base = this->meta_buf;
- vectors[1].iov_len = this->meta_len;
- ret = this->message->encode(vectors + 2, max - 2);
- if (ret < 0)
- return ret;
- return 2 + ret;
- }
- int TRPCMessage::append(const void *buf, size_t *size, size_t size_limit)
- {
- uint32_t *p;
- uint16_t *sp;
- size_t header_left, body_received, buf_len;
- if (this->nreceived < TRPC_HEADER_SIZE)
- {
- //receive header
- header_left = TRPC_HEADER_SIZE - this->nreceived;
- if (*size >= header_left)
- {
- //receive the whole header and ready to recieve body
- memcpy(this->header + this->nreceived, buf, header_left);
- this->nreceived += header_left;
- sp = (uint16_t *)this->header;
- uint16_t magic_value = ntohs(*sp);
- if (magic_value != TrpcMagic::TRPC_MAGIC_VALUE ||
- this->header[2] || this->header[3])
- {
- errno = EBADMSG;
- return -1;
- }
- p = (uint32_t *)this->header + 1;
- buf_len = ntohl(*p);
- sp = (uint16_t *)this->header + 4;
- this->meta_len = ntohs(*sp);
- this->message_len = buf_len - TRPC_HEADER_SIZE - this->meta_len;
- buf_len -= TRPC_HEADER_SIZE;
- if (buf_len >= size_limit)
- {
- errno = EMSGSIZE;
- return -1;
- }
- else if (buf_len > 0)
- {
- if (*size - header_left > buf_len)
- *size = header_left + buf_len;
- this->meta_buf = new char[this->meta_len];
- if (*size - header_left <= this->meta_len)
- {
- memcpy(this->meta_buf, (const char *)buf + header_left,
- *size - header_left);
- } else {
- memcpy(this->meta_buf, (const char *)buf + header_left,
- this->meta_len);
- this->message->append((const char *)buf + header_left + this->meta_len,
- *size - header_left - this->meta_len,
- BUFFER_MODE_COPY);
- }
- this->nreceived += *size - header_left;
- if (this->nreceived == TRPC_HEADER_SIZE + buf_len)
- return 1;
- else
- return 0;
- }
- else if (*size == header_left)
- {
- return 1; // means body_size == 0 and finish recieved header
- }
- else
- {
- // means buf_len < 0
- errno = EBADMSG;
- return -1;
- }
- }
- else
- {
- // only receive header
- memcpy(this->header + this->nreceived, buf, *size);
- this->nreceived += *size;
- return 0;
- }
- }
- else
- {
- // have already received the header and now is for body only
- body_received = this->nreceived - TRPC_HEADER_SIZE;
- buf_len = this->meta_len + this->message_len;
- if (body_received + *size > buf_len)
- *size = buf_len - body_received;
- if (body_received + *size <= this->meta_len)
- {
- memcpy(this->meta_buf + body_received, buf, *size);
- } else if (body_received < this->meta_len) {
- memcpy(this->meta_buf + body_received, buf,
- this->meta_len - body_received);
- if (body_received + *size > this->meta_len)// useless. always true
- this->message->append((const char *)buf + this->meta_len - body_received,
- *size - this->meta_len + body_received,
- BUFFER_MODE_COPY);
- } else {
- this->message->append((const char *)buf, *size, BUFFER_MODE_COPY);
- }
- this->nreceived += *size;
- return this->nreceived == TRPC_HEADER_SIZE + buf_len;
- }
- }
- bool TRPCRequest::deserialize_meta()
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- if (!meta->ParseFromArray(this->meta_buf, (int)this->meta_len))
- return false;
- if (meta->version() != TrpcProtoVersion::TRPC_PROTO_V1 ||
- meta->call_type() != TrpcCallType::TRPC_UNARY_CALL ||
- meta->content_type() != TrpcContentEncodeType::TRPC_PROTO_ENCODE)
- {
- // this->trpc_error = ST_ERR_UNSUPPORTED_PROTO_TYPE;
- return false;
- }
- // this->timeout = meta->timeout();
- return true;
- }
- bool TRPCResponse::deserialize_meta()
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- if (!meta->ParseFromArray(this->meta_buf, (int)this->meta_len))
- return false;
- this->srpc_status_code = this->status_code_trpc_srpc(meta->ret());
- if (!meta->error_msg().empty())
- this->srpc_error_msg = meta->error_msg().data();
- return true;
- }
- bool TRPCRequest::serialize_meta()
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_content_type(TrpcContentEncodeType::TRPC_PROTO_ENCODE);
- meta->set_version(TrpcProtoVersion::TRPC_PROTO_V1);
- meta->set_call_type(TrpcCallType::TRPC_UNARY_CALL);
- this->meta_len = meta->ByteSizeLong();
- this->meta_buf = new char[this->meta_len];
- return this->meta->SerializeToArray(this->meta_buf, (int)this->meta_len);
- }
- bool TRPCResponse::serialize_meta()
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- meta->set_version(TrpcProtoVersion::TRPC_PROTO_V1);
- meta->set_call_type(TrpcCallType::TRPC_UNARY_CALL);
- meta->set_ret(this->status_code_srpc_trpc(this->srpc_status_code));
- // meta->set_error_msg(this->error_msg_srpc_trpc(this->srpc_status_code));
- meta->set_error_msg(this->srpc_error_msg);
- this->meta_len = meta->ByteSizeLong();
- this->meta_buf = new char[this->meta_len];
- return meta->SerializeToArray(this->meta_buf, (int)this->meta_len);
- }
- inline int TRPCMessage::compress_type_trpc_srpc(int trpc_content_encoding) const
- {
- switch (trpc_content_encoding)
- {
- case TrpcCompressType::TRPC_DEFAULT_COMPRESS :
- return RPCCompressNone;
- case TrpcCompressType::TRPC_GZIP_COMPRESS :
- return RPCCompressGzip;
- case TrpcCompressType::TRPC_SNAPPY_COMPRESS :
- return RPCCompressSnappy;
- default :
- return -1;
- }
- }
- inline int TRPCMessage::compress_type_srpc_trpc(int srpc_compress_type) const
- {
- switch (srpc_compress_type)
- {
- case RPCCompressNone :
- return TrpcCompressType::TRPC_DEFAULT_COMPRESS;
- case RPCCompressGzip :
- return TrpcCompressType::TRPC_GZIP_COMPRESS;
- case RPCCompressSnappy :
- return TrpcCompressType::TRPC_SNAPPY_COMPRESS;
- case RPCCompressZlib :
- return TrpcCompressType::TRPC_ZLIB_COMPRESS;
- case RPCCompressLz4 :
- return TrpcCompressType::TRPC_LZ4_COMPRESS;
- default :
- return -1;
- }
- }
- inline int TRPCMessage::data_type_trpc_srpc(int trpc_content_type) const
- {
- switch (trpc_content_type)
- {
- case TrpcContentEncodeType::TRPC_PROTO_ENCODE :
- return RPCDataProtobuf;
- case TrpcContentEncodeType::TRPC_JSON_ENCODE :
- return RPCDataJson;
- default :
- return -1;
- }
- }
- inline int TRPCMessage::data_type_srpc_trpc(int srpc_data_type) const
- {
- switch (srpc_data_type)
- {
- case RPCDataProtobuf :
- return TrpcContentEncodeType::TRPC_PROTO_ENCODE;
- case RPCDataJson :
- return TrpcContentEncodeType::TRPC_JSON_ENCODE;
- default :
- return -1;
- }
- }
- inline int TRPCMessage::status_code_srpc_trpc(int srpc_status_code) const
- {
- switch (srpc_status_code)
- {
- case RPCStatusOK:
- return TrpcRetCode::TRPC_INVOKE_SUCCESS;
- case RPCStatusServiceNotFound:
- return TrpcRetCode::TRPC_SERVER_NOSERVICE_ERR;
- case RPCStatusMethodNotFound:
- return TrpcRetCode::TRPC_SERVER_NOFUNC_ERR;
- case RPCStatusURIInvalid:
- case RPCStatusMetaError:
- case RPCStatusReqCompressSizeInvalid:
- case RPCStatusReqCompressNotSupported:
- case RPCStatusReqCompressError:
- case RPCStatusReqSerializeError:
- return TrpcRetCode::TRPC_CLIENT_ENCODE_ERR;
- case RPCStatusReqDecompressSizeInvalid:
- case RPCStatusReqDecompressNotSupported:
- case RPCStatusReqDecompressError:
- case RPCStatusReqDeserializeError:
- return TrpcRetCode::TRPC_SERVER_DECODE_ERR;
- case RPCStatusRespCompressSizeInvalid:
- case RPCStatusRespCompressNotSupported:
- case RPCStatusRespCompressError:
- case RPCStatusRespSerializeError:
- return TrpcRetCode::TRPC_SERVER_ENCODE_ERR;
- case RPCStatusRespDecompressSizeInvalid:
- case RPCStatusRespDecompressNotSupported:
- case RPCStatusRespDecompressError:
- case RPCStatusRespDeserializeError:
- return TrpcRetCode::TRPC_CLIENT_DECODE_ERR;
- case RPCStatusUpstreamFailed:
- case RPCStatusDNSError:
- return TrpcRetCode::TRPC_CLIENT_ROUTER_ERR;
- case RPCStatusSystemError:
- return TrpcRetCode::TRPC_SERVER_SYSTEM_ERR;
- // return TrpcRetCode::TRPC_CLINET_NETWORK_ERR;
- default:
- return TrpcRetCode::TRPC_INVOKE_UNKNOWN_ERR;
- }
- }
- inline int TRPCMessage::status_code_trpc_srpc(int trpc_ret_code) const
- {
- switch (trpc_ret_code)
- {
- case TrpcRetCode::TRPC_INVOKE_SUCCESS:
- return RPCStatusOK;
- case TrpcRetCode::TRPC_SERVER_NOSERVICE_ERR:
- return RPCStatusServiceNotFound;
- case TrpcRetCode::TRPC_SERVER_NOFUNC_ERR:
- return RPCStatusMethodNotFound;
- case TrpcRetCode::TRPC_CLIENT_ENCODE_ERR:
- return RPCStatusReqSerializeError;
- case TrpcRetCode::TRPC_SERVER_DECODE_ERR:
- return RPCStatusReqDeserializeError;
- case TrpcRetCode::TRPC_SERVER_ENCODE_ERR:
- return RPCStatusRespSerializeError;
- case TrpcRetCode::TRPC_CLIENT_DECODE_ERR:
- return RPCStatusRespDeserializeError;
- case TrpcRetCode::TRPC_CLIENT_ROUTER_ERR:
- return RPCStatusUpstreamFailed;
- // return RPCStatusDNSError;
- default:
- return RPCStatusSystemError;
- }
- }
- const char *TRPCMessage::error_msg_srpc_trpc(int srpc_status_code) const
- {
- return "";//TODO
- }
- int TRPCRequest::get_compress_type() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return this->compress_type_trpc_srpc(meta->content_encoding());
- }
- void TRPCRequest::set_compress_type(int type)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_content_encoding(this->compress_type_srpc_trpc(type));
- }
- int TRPCRequest::get_data_type() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return this->data_type_trpc_srpc(meta->content_type());
- }
- void TRPCRequest::set_data_type(int type)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_content_type(this->data_type_srpc_trpc(type));
- }
- void TRPCRequest::set_request_id(int32_t req_id)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_request_id(req_id);
- }
- int32_t TRPCRequest::get_request_id() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return meta->request_id();
- }
- const std::string& TRPCRequest::get_service_name() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return meta->callee();
- }
- const std::string& TRPCRequest::get_method_name() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return meta->func();
- }
- // like p.service_name
- void TRPCRequest::set_service_name(const std::string& service_name)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_callee(service_name); // useless in transfer protocol
- }
- // like /p.service_name/method_name
- void TRPCRequest::set_method_name(const std::string& method_name)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_func(method_name); // use this prefix as service_name for route
- }
- void TRPCRequest::set_callee_timeout(int timeout)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_timeout(timeout);
- }
- void TRPCRequest::set_caller_name(const std::string& caller_name)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- meta->set_caller(caller_name);
- }
- const std::string& TRPCRequest::get_caller_name() const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- return meta->caller();
- }
- int TRPCResponse::get_compress_type() const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- return this->compress_type_trpc_srpc(meta->content_encoding());
- }
- int TRPCResponse::get_data_type() const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- return this->data_type_trpc_srpc(meta->content_type());
- }
- void TRPCResponse::set_compress_type(int type)
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- meta->set_content_encoding(this->compress_type_srpc_trpc(type));
- }
- void TRPCResponse::set_data_type(int type)
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- meta->set_content_type(this->data_type_srpc_trpc(type));
- }
- void TRPCResponse::set_request_id(int32_t req_id)
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- meta->set_request_id(req_id);
- }
- int32_t TRPCResponse::get_request_id() const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- return meta->request_id();
- }
- int TRPCResponse::get_status_code() const
- {
- return this->srpc_status_code;
- }
- void TRPCResponse::set_status_code(int code)
- {
- this->srpc_status_code = code;
- if (code != RPCStatusOK)
- this->srpc_error_msg = this->get_errmsg();
- }
- int TRPCResponse::get_error() const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- return meta->ret();//TODO
- }
- void TRPCResponse::set_error(int error)
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- meta->set_ret(error);
- }
- const char *TRPCResponse::get_errmsg() const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- return meta->error_msg().c_str();
- }
- int TRPCMessage::serialize(const ProtobufIDLMessage *pb_msg)
- {
- if (!pb_msg) //TODO: make sure trpc is OK to send a NULL user pb_msg
- return RPCStatusOK;
- using namespace google::protobuf;
- ResponseProtocol *meta = dynamic_cast<ResponseProtocol *>(this->meta);
- bool is_resp = (meta != NULL);
- int data_type = this->get_data_type();
- RPCOutputStream output_stream(this->message, pb_msg->ByteSizeLong());
- int ret;
- if (data_type == RPCDataProtobuf)
- ret = pb_msg->SerializeToZeroCopyStream(&output_stream) ? 0 : -1;
- else if (data_type == RPCDataJson)
- {
- std::string binary_input = pb_msg->SerializeAsString();
- io::ArrayInputStream input_stream(binary_input.data(),
- (int)binary_input.size());
- const auto *pool = pb_msg->GetDescriptor()->file()->pool();
- auto *resolver = (pool == DescriptorPool::generated_pool() ?
- ResolverInstance::get_resolver() :
- util::NewTypeResolverForDescriptorPool(kTypePrefix, pool));
- util::JsonOptions options;
- options.add_whitespace = this->get_json_add_whitespace();
- options.always_print_enums_as_ints = this->get_json_enums_as_ints();
- options.preserve_proto_field_names = this->get_json_preserve_names();
- options.always_print_primitive_fields = this->get_json_print_primitive();
- ret = BinaryToJsonStream(resolver, GetTypeUrl(pb_msg), &input_stream,
- &output_stream, options).ok() ? 0 : -1;
- if (pool != DescriptorPool::generated_pool())
- delete resolver;
- }
- else
- ret = -1;
- this->message_len = this->message->size();
- if (ret < 0)
- return is_resp ? RPCStatusRespSerializeError :
- RPCStatusReqSerializeError;
- return RPCStatusOK;
- }
- int TRPCMessage::deserialize(ProtobufIDLMessage *pb_msg)
- {
- using namespace google::protobuf;
- ResponseProtocol *meta = dynamic_cast<ResponseProtocol *>(this->meta);
- bool is_resp = (meta != NULL);
- int data_type = this->get_data_type();
- int ret;
- RPCInputStream input_stream(this->message);
- if (data_type == RPCDataProtobuf)
- ret = pb_msg->ParseFromZeroCopyStream(&input_stream) ? 0 : -1;
- else if (data_type == RPCDataJson)
- {
- std::string binary_output;
- io::StringOutputStream output_stream(&binary_output);
- const auto *pool = pb_msg->GetDescriptor()->file()->pool();
- auto *resolver = (pool == DescriptorPool::generated_pool() ?
- ResolverInstance::get_resolver() :
- util::NewTypeResolverForDescriptorPool(kTypePrefix, pool));
- if (JsonToBinaryStream(resolver, GetTypeUrl(pb_msg),
- &input_stream, &output_stream).ok())
- {
- ret = pb_msg->ParseFromString(binary_output) ? 0 : -1;
- }
- else
- ret = -1;
- if (pool != DescriptorPool::generated_pool())
- delete resolver;
- }
- else
- ret = -1;
- if (ret < 0)
- return is_resp ? RPCStatusRespDeserializeError :
- RPCStatusReqDeserializeError;
- return RPCStatusOK;
- }
- int TRPCMessage::compress()
- {
- ResponseProtocol *meta = dynamic_cast<ResponseProtocol *>(this->meta);
- bool is_resp = (meta != NULL);
- int type = this->get_compress_type();
- size_t buflen = this->message_len;
- int status_code = RPCStatusOK;
- if (buflen == 0)
- return status_code;
- if (type == RPCCompressNone)
- return status_code;
- static RPCCompressor *compressor = RPCCompressor::get_instance();
- int ret = compressor->lease_compressed_size(type, buflen);
- if (ret == -2)
- return is_resp ? RPCStatusReqCompressNotSupported :
- RPCStatusRespCompressNotSupported;
- else if (ret <= 0)
- return is_resp ? RPCStatusRespCompressSizeInvalid :
- RPCStatusReqCompressSizeInvalid;
- //buflen = ret;
- RPCBuffer *dst_buf = new RPCBuffer();
- ret = compressor->serialize_to_compressed(this->message, dst_buf, type);
- if (ret == -2)
- {
- status_code = is_resp ? RPCStatusRespCompressNotSupported :
- RPCStatusReqCompressNotSupported;
- }
- else if (ret == -1)
- {
- status_code = is_resp ? RPCStatusRespCompressError :
- RPCStatusReqCompressError;
- }
- else if (ret <= 0)
- {
- status_code = is_resp ? RPCStatusRespCompressSizeInvalid :
- RPCStatusReqCompressSizeInvalid;
- }
- else
- buflen = ret;
- if (status_code == RPCStatusOK)
- {
- delete this->message;
- this->message = dst_buf;
- this->message_len = buflen;
- }
- else
- delete dst_buf;
- return status_code;
- }
- int TRPCMessage::decompress()
- {
- ResponseProtocol *meta = dynamic_cast<ResponseProtocol *>(this->meta);
- bool is_resp = (meta != NULL);
- int type = this->get_compress_type();
- int status_code = RPCStatusOK;
- if (this->message_len == 0 || type == RPCCompressNone)
- return status_code;
- RPCBuffer *dst_buf = new RPCBuffer();
- static RPCCompressor *compressor = RPCCompressor::get_instance();
- int ret = compressor->parse_from_compressed(this->message, dst_buf, type);
- if (ret == -2)
- {
- status_code = is_resp ? RPCStatusRespDecompressNotSupported :
- RPCStatusReqDecompressNotSupported;
- }
- else if (ret == -1)
- {
- status_code = is_resp ? RPCStatusRespDecompressError :
- RPCStatusReqDecompressError;
- }
- else if (ret <= 0)
- {
- status_code = is_resp ? RPCStatusRespDecompressSizeInvalid :
- RPCStatusReqDecompressSizeInvalid;
- }
- if (status_code == RPCStatusOK)
- {
- delete this->message;
- this->message = dst_buf;
- this->message_len = ret;
- }
- else
- delete dst_buf;
- return status_code;
- }
- static std::string set_trace_parent(std::string& trace, std::string& span,
- const RPCModuleData& data)
- {
- std::string str = "00-"; // set version
- char trace_id_buf[SRPC_TRACEID_SIZE * 2 + 1];
- TRACE_ID_BIN_TO_HEX((uint64_t *)trace.data(), trace_id_buf);
- str.append(trace_id_buf);
- str.append("-");
- char span_id_buf[SRPC_SPANID_SIZE * 2 + 1];
- SPAN_ID_BIN_TO_HEX((uint64_t *)span.data(), span_id_buf);
- str.append(span_id_buf);
- str.append("-");
- str.append("01"); // set traceflag : sampled
- return str;
- }
- bool TRPCRequest::set_meta_module_data(const RPCModuleData& data)
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- std::string trace;
- std::string span;
- int flag = 0;
- for (const auto & pair : data)
- {
- if (pair.first.compare(SRPC_TRACE_ID) == 0)
- {
- trace = pair.second;
- flag |= 1;
- }
- else if (pair.first.compare(SRPC_SPAN_ID) == 0)
- {
- span = pair.second;
- flag |= (1 << 1);
- }
- else
- meta->mutable_trans_info()->insert({pair.first, pair.second});
- }
- if (flag == 3)
- meta->mutable_trans_info()->insert({OTLP_TRACE_PARENT,
- set_trace_parent(trace, span, data)});
- return true;
- }
- static bool get_trace_parent(const std::string& str, RPCModuleData& data)
- {
- // only support version = 00 : "00-" trace-id "-" parent-id "-" trace-flags
- size_t begin = OTLP_TRACE_VERSION_SIZE;
- if (str.length() < 55 || str.substr(0, begin).compare("00") != 0)
- return false;
- // data[OTLP_TRACE_VERSION] = "00";
- uint64_t trace[2];
- begin += 1;
- TRACE_ID_HEX_TO_BIN(str.substr(begin, SRPC_TRACEID_SIZE * 2).data(), trace);
- data[SRPC_TRACE_ID] = std::string((char *)trace, SRPC_TRACEID_SIZE);
- uint64_t span[1];
- begin += SRPC_TRACEID_SIZE * 2 + 1;
- SPAN_ID_HEX_TO_BIN(str.substr(begin, SRPC_SPANID_SIZE * 2).data(), span);
- data[SRPC_SPAN_ID] = std::string((char *)span, SRPC_SPANID_SIZE);
- // begin += SRPC_SPANID_SIZE + 1;
- // data[OTLP_TRACE_FLAG] = str.substr(begin);
- return true;
- }
- bool TRPCRequest::get_meta_module_data(RPCModuleData& data) const
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- for (const auto & pair : meta->trans_info())
- {
- if (pair.first.compare(OTLP_TRACE_PARENT) == 0)
- get_trace_parent(pair.second, data);
- else if (pair.first.compare(OTLP_TRACE_STATE) == 0)
- ;// TODO: support tracestate
- else
- data.insert(pair);
- }
- return true;
- }
- bool TRPCRequest::trim_method_prefix()
- {
- RequestProtocol *meta = static_cast<RequestProtocol *>(this->meta);
- std::string *func = meta->mutable_func();
- if ((*func)[0] == '/')
- {
- size_t pos = func->find('/', 1);
- if (pos != std::string::npos)
- {
- // callee is not guaranteed being set as service_name in transfer protocol
- // so server need to get from func and set on callee for local use
- meta->set_callee(func->substr(1, pos - 1));
- meta->set_func(func->substr(pos + 1, func->length()));
- return true;
- }
- }
- meta->set_callee(""); // make it fail in find_service()
- return false;
- }
- bool TRPCResponse::set_meta_module_data(const RPCModuleData& data)
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- for (const auto & pair : data)
- meta->mutable_trans_info()->insert({pair.first, pair.second});
- return true;
- }
- bool TRPCResponse::get_meta_module_data(RPCModuleData& data) const
- {
- ResponseProtocol *meta = static_cast<ResponseProtocol *>(this->meta);
- for (const auto & pair : meta->trans_info())
- data.insert(pair);
- return true;
- }
- bool TRPCHttpRequest::serialize_meta()
- {
- if (this->message->size() > 0x7FFFFFFF)
- return false;
- int data_type = this->get_data_type();
- int compress_type = this->get_compress_type();
- std::string uri("/");
- uri += this->get_service_name();
- uri += "/";
- uri += this->get_method_name();
- set_http_version("HTTP/1.1");
- set_method("POST");
- set_request_uri(uri);
- //set header
- set_header_pair(TRPCHttpHeaders::DataType,
- GetHttpDataTypeStr(data_type));
- set_header_pair(TRPCHttpHeaders::CompressType,
- GetHttpCompressTypeStr(compress_type));
- set_header_pair("Connection", "Keep-Alive");
- set_header_pair("Content-Length", std::to_string(this->message_len));
- set_header_pair(TRPCHttpHeaders::CallType, "0");
- set_header_pair(TRPCHttpHeaders::RequestId,
- std::to_string(this->get_request_id()));
- set_header_pair(TRPCHttpHeaders::Callee, this->get_method_name());
- set_header_pair(TRPCHttpHeaders::Func, this->get_service_name());
- set_header_pair(TRPCHttpHeaders::Caller, this->get_caller_name());
- auto *req_meta = (RequestProtocol *)this->meta;
- set_header_pair(TRPCHttpHeaders::TransInfo,
- EncodeTransInfo(req_meta->trans_info()));
- const void *buffer;
- size_t buflen;
- while (buflen = this->message->fetch(&buffer), buffer && buflen > 0)
- this->append_output_body_nocopy(buffer, buflen);
- return true;
- }
- bool TRPCHttpRequest::deserialize_meta()
- {
- const char *request_uri = this->get_request_uri();
- protocol::HttpHeaderCursor header_cursor(this);
- auto *meta = (RequestProtocol *)this->meta;
- std::string key, value;
- this->set_data_type(RPCDataJson);
- this->set_compress_type(RPCCompressNone);
- while (header_cursor.next(key, value))
- {
- switch (GetHttpHeadersCode(key))
- {
- case TRPCHttpHeadersCode::DataType:
- this->set_data_type(GetHttpDataType(value));
- break;
- case TRPCHttpHeadersCode::CompressType:
- this->set_compress_type(GetHttpCompressType(value));
- break;
- case TRPCHttpHeadersCode::CallType:
- meta->set_call_type(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::RequestId:
- meta->set_request_id(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::Timeout:
- meta->set_timeout(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::Caller:
- meta->set_caller(value);
- break;
- case TRPCHttpHeadersCode::Callee:
- meta->set_callee(value);
- break;
- case TRPCHttpHeadersCode::MessageType:
- meta->set_message_type(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::TransInfo:
- DecodeTransInfo(value, *meta->mutable_trans_info());
- break;
- default:
- break;
- }
- }
- if (request_uri && request_uri[0] == '/')
- {
- std::string str = request_uri + 1;
- auto pos = str.find_first_of("?#");
- if (pos != std::string::npos)
- str.erase(pos);
- if (!str.empty() && str.back() == '/')
- str.pop_back();
- pos = str.find_last_of('/');
- if (pos != std::string::npos)
- {
- this->set_service_name(str.substr(0, pos));
- this->set_method_name(str.substr(pos + 1));
- }
- }
- const void *ptr;
- size_t len;
- this->get_parsed_body(&ptr, &len);
- if (len > 0x7FFFFFFF)
- return false;
- protocol::HttpChunkCursor chunk_cursor(this);
- RPCBuffer *buf = this->get_buffer();
- size_t msg_len = 0;
- while (chunk_cursor.next(&ptr, &len))
- {
- msg_len += len;
- buf->append((const char *)ptr, len, BUFFER_MODE_NOCOPY);
- }
- if (this->get_compress_type() == RPCCompressNone &&
- msg_len == 0 && this->get_data_type() == RPCDataJson)
- {
- buf->append("{}", 2, BUFFER_MODE_NOCOPY);
- msg_len = 2;
- }
- this->message_len = msg_len;
- return true;
- }
- bool TRPCHttpResponse::serialize_meta()
- {
- if (this->message->size() > 0x7FFFFFFF)
- return false;
- auto *meta = (ResponseProtocol *)this->meta;
- int data_type = this->get_data_type();
- int compress_type = this->get_compress_type();
- int rpc_status_code = this->get_status_code();
- int rpc_error = this->get_error();
- const char *http_status_code = this->protocol::HttpResponse::get_status_code();
- set_http_version("HTTP/1.1");
- if (rpc_status_code == RPCStatusOK)
- {
- if (http_status_code)
- protocol::HttpUtil::set_response_status(this, atoi(http_status_code));
- else
- protocol::HttpUtil::set_response_status(this, HttpStatusOK);
- }
- else if (rpc_status_code == RPCStatusServiceNotFound
- || rpc_status_code == RPCStatusMethodNotFound
- || rpc_status_code == RPCStatusMetaError
- || rpc_status_code == RPCStatusURIInvalid)
- {
- protocol::HttpUtil::set_response_status(this, HttpStatusBadRequest);
- }
- else if (rpc_status_code == RPCStatusRespCompressNotSupported
- || rpc_status_code == RPCStatusRespDecompressNotSupported
- || rpc_status_code == RPCStatusIDLSerializeNotSupported
- || rpc_status_code == RPCStatusIDLDeserializeNotSupported)
- {
- protocol::HttpUtil::set_response_status(this, HttpStatusNotImplemented);
- }
- else if (rpc_status_code == RPCStatusUpstreamFailed)
- {
- protocol::HttpUtil::set_response_status(this,
- HttpStatusServiceUnavailable);
- }
- else
- {
- protocol::HttpUtil::set_response_status(this,
- HttpStatusInternalServerError);
- }
- //set header
- set_header_pair(TRPCHttpHeaders::SRPCStatus,
- std::to_string(rpc_status_code));
- set_header_pair(TRPCHttpHeaders::SRPCError,
- std::to_string(rpc_error));
- set_header_pair(TRPCHttpHeaders::DataType,
- GetHttpDataTypeStr(data_type));
- set_header_pair(TRPCHttpHeaders::CompressType,
- GetHttpCompressTypeStr(compress_type));
- set_header_pair(TRPCHttpHeaders::CallType,
- std::to_string(meta->call_type()));
- set_header_pair(TRPCHttpHeaders::RequestId,
- std::to_string(meta->request_id()));
- set_header_pair(TRPCHttpHeaders::Ret,
- std::to_string(meta->ret()));
- set_header_pair(TRPCHttpHeaders::FuncRet,
- std::to_string(meta->func_ret()));
- set_header_pair(TRPCHttpHeaders::ErrorMsg,
- meta->error_msg());
- set_header_pair(TRPCHttpHeaders::MessageType,
- std::to_string(meta->message_type()));
- set_header_pair("Content-Length", std::to_string(this->message_len));
- set_header_pair("Connection", "Keep-Alive");
- set_header_pair(TRPCHttpHeaders::TransInfo,
- EncodeTransInfo(meta->trans_info()));
- const void *buffer;
- size_t buflen;
- while (buflen = this->message->fetch(&buffer), buffer && buflen > 0)
- this->append_output_body_nocopy(buffer, buflen);
- return true;
- }
- bool TRPCHttpResponse::deserialize_meta()
- {
- protocol::HttpHeaderCursor header_cursor(this);
- auto *meta = (ResponseProtocol *)this->meta;
- std::string key, value;
- this->set_data_type(RPCDataJson);
- this->set_compress_type(RPCCompressNone);
- while (header_cursor.next(key, value))
- {
- switch (GetHttpHeadersCode(key))
- {
- case TRPCHttpHeadersCode::DataType:
- this->set_data_type(GetHttpDataType(value));
- break;
- case TRPCHttpHeadersCode::CompressType:
- this->set_compress_type(GetHttpCompressType(value));
- break;
- case TRPCHttpHeadersCode::CallType:
- meta->set_call_type(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::RequestId:
- meta->set_request_id(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::Ret:
- meta->set_ret(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::FuncRet:
- meta->set_func_ret(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::ErrorMsg:
- meta->set_error_msg(value);
- break;
- case TRPCHttpHeadersCode::MessageType:
- meta->set_message_type(std::atoi(value.c_str()));
- break;
- case TRPCHttpHeadersCode::TransInfo:
- DecodeTransInfo(value, *meta->mutable_trans_info());
- break;
- default:
- break;
- }
- }
- const void *ptr;
- size_t len;
- this->get_parsed_body(&ptr, &len);
- if (len > 0x7FFFFFFF)
- return false;
- protocol::HttpChunkCursor chunk_cursor(this);
- RPCBuffer *buf = this->get_buffer();
- size_t msg_len = 0;
- while (chunk_cursor.next(&ptr, &len))
- {
- buf->append((const char *)ptr, len, BUFFER_MODE_NOCOPY);
- msg_len += len;
- }
- this->message_len = msg_len;
- return true;
- }
- bool TRPCHttpRequest::set_meta_module_data(const RPCModuleData& data)
- {
- return this->TRPCRequest::set_meta_module_data(data);
- }
- bool TRPCHttpRequest::get_meta_module_data(RPCModuleData& data) const
- {
- return this->TRPCRequest::get_meta_module_data(data);
- }
- bool TRPCHttpResponse::set_meta_module_data(const RPCModuleData& data)
- {
- return this->TRPCResponse::set_meta_module_data(data);
- }
- bool TRPCHttpResponse::get_meta_module_data(RPCModuleData& data) const
- {
- return this->TRPCResponse::get_meta_module_data(data);
- }
- bool TRPCHttpRequest::set_http_header(const std::string& name,
- const std::string& value)
- {
- return this->protocol::HttpMessage::set_header_pair(name, value);
- }
- bool TRPCHttpRequest::add_http_header(const std::string& name,
- const std::string& value)
- {
- return this->protocol::HttpMessage::add_header_pair(name, value);
- }
- bool TRPCHttpRequest::get_http_header(const std::string& name,
- std::string& value) const
- {
- protocol::HttpHeaderCursor cursor(this);
- return cursor.find(name, value);
- }
- bool TRPCHttpResponse::set_http_header(const std::string& name,
- const std::string& value)
- {
- return this->protocol::HttpMessage::set_header_pair(name, value);
- }
- bool TRPCHttpResponse::add_http_header(const std::string& name,
- const std::string& value)
- {
- return this->protocol::HttpMessage::add_header_pair(name, value);
- }
- bool TRPCHttpResponse::get_http_header(const std::string& name,
- std::string& value) const
- {
- protocol::HttpHeaderCursor cursor(this);
- return cursor.find(name, value);
- }
- } // namespace srpc
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