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GeezerVison is showing github.com — CovenantSQL/types/request_type.go at develop · CovenantSQL/CovenantSQL Expand file tree/ Copy pathrequest_type.goMore file actions 160 lines (136 loc) · 4.28 KB / Copy pathrequest_type.goFile metadata and controls160 lines (136 loc) · 4.28 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 /* * Copyright 2018 The CovenantSQL 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. */ package types import ( "fmt" "time" "github.com/CovenantSQL/CovenantSQL/crypto/asymmetric" "github.com/CovenantSQL/CovenantSQL/crypto/hash" "github.com/CovenantSQL/CovenantSQL/crypto/verifier" "github.com/CovenantSQL/CovenantSQL/proto" ) //go:generate hsp // QueryType enumerates available query type, currently read/write. type QueryType int32 const ( // ReadQuery defines a read query type. ReadQuery QueryType = iota // WriteQuery defines a write query type. WriteQuery // NumberOfQueryType defines the number of query type. NumberOfQueryType ) // NamedArg defines the named argument structure for database. type NamedArg struct { Name string Value interface{} } // Query defines single query. type Query struct { Pattern string Args []NamedArg } // RequestPayload defines a queries payload. type RequestPayload struct { Queries []Query `json:"qs"` } // RequestHeader defines a query request header. type RequestHeader struct { QueryType QueryType `json:"qt"` NodeID proto.NodeID `json:"id"` // request node id DatabaseID proto.DatabaseID `json:"dbid"` // request database id ConnectionID uint64 `json:"cid"` SeqNo uint64 `json:"seq"` Timestamp time.Time `json:"t"` // time in UTC zone BatchCount uint64 `json:"bc"` // query count in this request QueriesHash hash.Hash `json:"qh"` // hash of query payload } // GetQueryKey returns a unique query key of this request. func (h *RequestHeader) GetQueryKey() QueryKey { return QueryKey{ NodeID: h.NodeID, ConnectionID: h.ConnectionID, SeqNo: h.SeqNo, } } // QueryKey defines an unique query key of a request. type QueryKey struct { NodeID proto.NodeID `json:"id"` ConnectionID uint64 `json:"cid"` SeqNo uint64 `json:"seq"` } // String implements fmt.Stringer for logging purpose. func (k QueryKey) String() string { return fmt.Sprintf("%s#%016x#%016x", string(k.NodeID[len(k.NodeID)-8:]), k.ConnectionID, k.SeqNo) } // SignedRequestHeader defines a signed query request header. type SignedRequestHeader struct { RequestHeader verifier.DefaultHashSignVerifierImpl } // Request defines a complete query request. type Request struct { proto.Envelope Header SignedRequestHeader `json:"h"` Payload RequestPayload `json:"p"` _marshalCache []byte `json:"-"` } // String implements fmt.Stringer for logging purpose. func (t QueryType) String() string { switch t { case ReadQuery: return "read" case WriteQuery: return "write" default: return "unknown" } } // Verify checks hash and signature in request header. func (sh *SignedRequestHeader) Verify() (err error) { return sh.DefaultHashSignVerifierImpl.Verify(&sh.RequestHeader) } // Sign the request. func (sh *SignedRequestHeader) Sign(signer *asymmetric.PrivateKey) (err error) { return sh.DefaultHashSignVerifierImpl.Sign(&sh.RequestHeader, signer) } // Verify checks hash and signature in whole request. func (r *Request) Verify() (err error) { // verify payload hash in signed header if err = verifyHash(&r.Payload, &r.Header.QueriesHash); err != nil { return } // verify header sign return r.Header.Verify() } // Sign the request. func (r *Request) Sign(signer *asymmetric.PrivateKey) (err error) { // set query count r.Header.BatchCount = uint64(len(r.Payload.Queries)) // compute payload hash if err = buildHash(&r.Payload, &r.Header.QueriesHash); err != nil { return } return r.Header.Sign(signer) } // SetMarshalCache sets _marshalCache. func (r *Request) SetMarshalCache(buf []byte) { r._marshalCache = buf } // GetMarshalCache gets _marshalCache. func (r *Request) GetMarshalCache() (buf []byte) { return r._marshalCache } |
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