forked from google/trillian
-
Notifications
You must be signed in to change notification settings - Fork 0
/
validate.go
155 lines (140 loc) · 5.44 KB
/
validate.go
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
// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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 server
import (
"fmt"
"github.com/google/trillian"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func validateGetInclusionProofRequest(req *trillian.GetInclusionProofRequest) error {
if req.TreeSize <= 0 {
return status.Errorf(codes.InvalidArgument, "GetInclusionProofRequest.TreeSize: %v, want > 0", req.TreeSize)
}
if req.LeafIndex < 0 {
return status.Errorf(codes.InvalidArgument, "GetInclusionProofRequest.LeafIndex: %v, want >= 0", req.LeafIndex)
}
if req.LeafIndex >= req.TreeSize {
return status.Errorf(codes.InvalidArgument, "GetInclusionProofRequest.LeafIndex: %v >= TreeSize: %v, want < ", req.LeafIndex, req.TreeSize)
}
return nil
}
func validateGetInclusionProofByHashRequest(req *trillian.GetInclusionProofByHashRequest) error {
if req.TreeSize <= 0 {
return status.Errorf(codes.InvalidArgument, "GetInclusionProofByHashRequest.TreeSize: %v, want > 0", req.TreeSize)
}
if err := validateLeafHash(req.LeafHash); err != nil {
return status.Errorf(codes.InvalidArgument, "GetInclusionProofByHashRequest.LeafHash: %v", err)
}
return nil
}
func validateGetLeavesByHashRequest(req *trillian.GetLeavesByHashRequest) error {
if len(req.LeafHash) == 0 {
return status.Error(codes.InvalidArgument, "GetLeavesByHashRequest.LeafHash empty")
}
for i, hash := range req.LeafHash {
if err := validateLeafHash(hash); err != nil {
return status.Errorf(codes.InvalidArgument, "GetLeavesByHashRequest.LeafHash[%v]: %v", i, err)
}
}
return nil
}
func validateGetLeavesByIndexRequest(req *trillian.GetLeavesByIndexRequest) error {
if len(req.LeafIndex) == 0 {
return status.Error(codes.InvalidArgument, "GetLeavesByIndexRequest.LeafIndex empty")
}
for i, leafIndex := range req.LeafIndex {
if leafIndex < 0 {
return status.Errorf(codes.InvalidArgument, "GetLeavesByIndexRequest.LeafIndex[%v]: %v, want >= 0", i, leafIndex)
}
}
return nil
}
func validateGetLeavesByRangeRequest(req *trillian.GetLeavesByRangeRequest) error {
if req.StartIndex < 0 {
return status.Errorf(codes.InvalidArgument, "GetLeavesByRangeRequest.StartIndex: %v, want >= 0", req.StartIndex)
}
if req.Count <= 0 {
return status.Errorf(codes.InvalidArgument, "GetLeavesByRangeRequest.Count: %v, want > 0", req.Count)
}
return nil
}
func validateGetConsistencyProofRequest(req *trillian.GetConsistencyProofRequest) error {
if req.FirstTreeSize <= 0 {
return status.Errorf(codes.InvalidArgument, "GetConsistencyProofRequest.FirstTreeSize: %v, want > 0", req.FirstTreeSize)
}
if req.SecondTreeSize <= 0 {
return status.Errorf(codes.InvalidArgument, "GetConsistencyProofRequest.SecondTreeSize: %v, want > 0", req.SecondTreeSize)
}
if req.SecondTreeSize < req.FirstTreeSize {
return status.Errorf(codes.InvalidArgument, "GetConsistencyProofRequest.FirstTreeSize: %v < GetConsistencyProofRequest.SecondTreeSize: %v, want >= ", req.FirstTreeSize, req.SecondTreeSize)
}
return nil
}
func validateGetEntryAndProofRequest(req *trillian.GetEntryAndProofRequest) error {
if req.TreeSize <= 0 {
return status.Errorf(codes.InvalidArgument, "GetEntryAndProofRequest.TreeSize: %v, want > 0", req.TreeSize)
}
if req.LeafIndex < 0 {
return status.Errorf(codes.InvalidArgument, "GetEntryAndProofRequest.LeafIndex: %v, want >= 0", req.LeafIndex)
}
if req.LeafIndex >= req.TreeSize {
return status.Errorf(codes.InvalidArgument, "GetEntryAndProofRequest.LeafIndex: %v >= TreeSize: %v, want < ", req.LeafIndex, req.TreeSize)
}
return nil
}
func validateAddSequencedLeavesRequest(req *trillian.AddSequencedLeavesRequest) error {
prefix := "AddSequencedLeavesRequest"
if err := validateLogLeaves(req.Leaves, prefix); err != nil {
return err
}
// Note: Not empty, as verified by validateLogLeaves.
nextIndex := req.Leaves[0].LeafIndex
for i, leaf := range req.Leaves {
if leaf.LeafIndex != nextIndex {
return status.Errorf(codes.FailedPrecondition, "%v.Leaves[%v].LeafIndex=%v, want %v", prefix, i, leaf.LeafIndex, nextIndex)
}
nextIndex++
}
return nil
}
func validateLogLeaves(leaves []*trillian.LogLeaf, errPrefix string) error {
if len(leaves) == 0 {
return status.Errorf(codes.InvalidArgument, "%v.Leaves empty", errPrefix)
}
for i, leaf := range leaves {
if err := validateLogLeaf(leaf, ""); err != nil {
return status.Errorf(codes.InvalidArgument, "%v.Leaves[%v]%v", errPrefix, i, err)
}
}
return nil
}
func validateLogLeaf(leaf *trillian.LogLeaf, errPrefix string) error {
if leaf == nil {
return status.Errorf(codes.InvalidArgument, "%v empty", errPrefix)
}
switch {
case len(leaf.LeafValue) == 0:
return status.Errorf(codes.InvalidArgument, "%v.LeafValue: empty", errPrefix)
case leaf.LeafIndex < 0:
return status.Errorf(codes.InvalidArgument, "%v.LeafIndex: %v, want >= 0", errPrefix, leaf.LeafIndex)
}
return nil
}
func validateLeafHash(hash []byte) error {
if len(hash) == 0 {
return fmt.Errorf("leaf hash empty")
}
return nil
}