/
util.go
247 lines (220 loc) · 8.17 KB
/
util.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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build java android
package security
import (
"v.io/v23/security"
"v.io/v23/uniqueid"
"v.io/v23/vom"
jutil "v.io/x/jni/util"
)
// #include "jni.h"
import "C"
// JavaBlessings converts the provided Go Blessings into Java Blessings.
func JavaBlessings(env jutil.Env, blessings security.Blessings) (jutil.Object, error) {
ref := jutil.GoNewRef(&blessings) // Un-refed when the Java Blessings object is finalized.
jBlessings, err := jutil.NewObject(env, jBlessingsClass, []jutil.Sign{jutil.LongSign}, int64(ref))
if err != nil {
jutil.GoDecRef(ref)
return jutil.NullObject, err
}
return jBlessings, nil
}
// GoBlessings converts the provided Java Blessings into Go Blessings.
func GoBlessings(env jutil.Env, jBlessings jutil.Object) (security.Blessings, error) {
if jBlessings.IsNull() {
return security.Blessings{}, nil
}
ref, err := jutil.CallLongMethod(env, jBlessings, "nativeRef", nil)
if err != nil {
return security.Blessings{}, err
}
return (*(*security.Blessings)(jutil.GoRefValue(jutil.Ref(ref)))), nil
}
// GoBlessingsArray converts the provided Java Blessings array into a Go
// Blessings slice.
func GoBlessingsArray(env jutil.Env, jBlessingsArr jutil.Object) ([]security.Blessings, error) {
barr, err := jutil.GoObjectArray(env, jBlessingsArr)
if err != nil {
return nil, err
}
ret := make([]security.Blessings, len(barr))
for i, jBlessings := range barr {
var err error
if ret[i], err = GoBlessings(env, jBlessings); err != nil {
return nil, err
}
}
return ret, nil
}
// JavaWireBlessings converts the provided Go WireBlessings into Java WireBlessings.
func JavaWireBlessings(env jutil.Env, wire security.WireBlessings) (jutil.Object, error) {
return jutil.JVomCopy(env, wire, jWireBlessingsClass)
}
// JavaCaveat converts the provided Go Caveat into a Java Caveat.
func JavaCaveat(env jutil.Env, caveat security.Caveat) (jutil.Object, error) {
// NOTE(spetrovic): We could call JVomCopy here, but it's painfully slow and this code is
// on the critical path.
// Copy the Id field.
jId, err := jutil.NewObject(env, jIdClass, []jutil.Sign{jutil.ByteArraySign}, []byte(caveat.Id[:]))
if err != nil {
return jutil.NullObject, err
}
return jutil.NewObject(env, jCaveatClass, []jutil.Sign{idSign, jutil.ByteArraySign}, jId, caveat.ParamVom)
}
// GoCaveat converts the provided Java Caveat into a Go Caveat.
func GoCaveat(env jutil.Env, jCav jutil.Object) (security.Caveat, error) {
// NOTE(spetrovic): We could call GoVomCopy here, but it's painfully slow and this code is
// on the critical path.
// Copy the Id field.
jId, err := jutil.CallObjectMethod(env, jCav, "getId", nil, idSign)
if err != nil {
return security.Caveat{}, err
}
idBytes, err := jutil.CallByteArrayMethod(env, jId, "toPrimitiveArray", nil)
if err != nil {
return security.Caveat{}, err
}
var id uniqueid.Id
copy(id[:], idBytes[:len(id)])
// Copy the ParamVom field.
paramVom, err := jutil.CallByteArrayMethod(env, jCav, "getParamVom", nil)
if err != nil {
return security.Caveat{}, err
}
return security.Caveat{
Id: id,
ParamVom: paramVom,
}, nil
}
// JavaCaveatArray converts the provided Go Caveat slice into a Java Caveat array.
func JavaCaveatArray(env jutil.Env, caveats []security.Caveat) (jutil.Object, error) {
if caveats == nil {
return jutil.NullObject, nil
}
cavArr := make([]jutil.Object, len(caveats))
for i, caveat := range caveats {
var err error
if cavArr[i], err = JavaCaveat(env, caveat); err != nil {
return jutil.NullObject, err
}
}
return jutil.JObjectArray(env, cavArr, jCaveatClass)
}
// GoCaveats converts the provided Java Caveat array into a Go Caveat slice.
func GoCaveats(env jutil.Env, jCaveats jutil.Object) ([]security.Caveat, error) {
cavArr, err := jutil.GoObjectArray(env, jCaveats)
if err != nil {
return nil, err
}
ret := make([]security.Caveat, len(cavArr))
for i, jCav := range cavArr {
var err error
if ret[i], err = GoCaveat(env, jCav); err != nil {
return nil, err
}
}
return ret, nil
}
// JavaBlessingPattern converts the provided Go BlessingPattern into Java
// BlessingPattern.
func JavaBlessingPattern(env jutil.Env, pattern security.BlessingPattern) (jutil.Object, error) {
ref := jutil.GoNewRef(&pattern) // Un-refed when the Java BlessingRootsImpl is finalized.
jPattern, err := jutil.NewObject(env, jBlessingPatternClass, []jutil.Sign{jutil.LongSign, jutil.StringSign}, int64(ref), string(pattern))
if err != nil {
jutil.GoDecRef(ref)
return jutil.NullObject, err
}
return jPattern, nil
}
// GoBlessingPattern converts the provided Java BlessingPattern into Go BlessingPattern.
func GoBlessingPattern(env jutil.Env, jPattern jutil.Object) (pattern security.BlessingPattern, err error) {
if jPattern.IsNull() {
return "", nil
}
ref, err := jutil.CallLongMethod(env, jPattern, "nativeRef", nil)
if err != nil {
return "", err
}
return (*(*security.BlessingPattern)(jutil.GoRefValue(jutil.Ref(ref)))), nil
}
// JavaPublicKey converts the provided Go PublicKey into Java PublicKey.
func JavaPublicKey(env jutil.Env, key security.PublicKey) (jutil.Object, error) {
if key == nil {
return jutil.NullObject, nil
}
der, err := key.MarshalBinary()
if err != nil {
return jutil.NullObject, err
}
return JavaPublicKeyFromDER(env, der)
}
// JavaPublicKeyFromDER converts a DER-encoded public key into a Java PublicKey object.
func JavaPublicKeyFromDER(env jutil.Env, der []byte) (jutil.Object, error) {
jPublicKey, err := jutil.CallStaticObjectMethod(env, jUtilClass, "decodePublicKey", []jutil.Sign{jutil.ArraySign(jutil.ByteSign)}, publicKeySign, der)
if err != nil {
return jutil.NullObject, err
}
return jPublicKey, nil
}
// JavaPublicKeyToDER returns the DER-encoded representations of a Java PublicKey object.
func JavaPublicKeyToDER(env jutil.Env, jKey jutil.Object) ([]byte, error) {
return jutil.CallStaticByteArrayMethod(env, jUtilClass, "encodePublicKey", []jutil.Sign{publicKeySign}, jKey)
}
// GoPublicKey converts the provided Java PublicKey into Go PublicKey.
func GoPublicKey(env jutil.Env, jKey jutil.Object) (security.PublicKey, error) {
der, err := JavaPublicKeyToDER(env, jKey)
if err != nil {
return nil, err
}
return security.UnmarshalPublicKey(der)
}
// JavaSignature converts the provided Go Signature into a Java VSignature.
func JavaSignature(env jutil.Env, sig security.Signature) (jutil.Object, error) {
encoded, err := vom.Encode(sig)
if err != nil {
return jutil.NullObject, err
}
jSignature, err := jutil.CallStaticObjectMethod(env, jUtilClass, "decodeSignature", []jutil.Sign{jutil.ByteArraySign}, signatureSign, encoded)
if err != nil {
return jutil.NullObject, err
}
return jSignature, nil
}
// GoSignature converts the provided Java VSignature into a Go Signature.
func GoSignature(env jutil.Env, jSignature jutil.Object) (security.Signature, error) {
encoded, err := jutil.CallStaticByteArrayMethod(env, jUtilClass, "encodeSignature", []jutil.Sign{signatureSign}, jSignature)
if err != nil {
return security.Signature{}, err
}
var sig security.Signature
if err := vom.Decode(encoded, &sig); err != nil {
return security.Signature{}, err
}
return sig, nil
}
// GoDischarge converts the provided Java Discharge into a Go Discharge.
func GoDischarge(env jutil.Env, jDischarge jutil.Object) (security.Discharge, error) {
var discharge security.Discharge
if err := jutil.GoVomCopy(env, jDischarge, jDischargeClass, &discharge); err != nil {
return security.Discharge{}, err
}
return discharge, nil
}
// JavaDischarge converts the provided Go Discharge into a Java discharge.
func JavaDischarge(env jutil.Env, discharge security.Discharge) (jutil.Object, error) {
return jutil.JVomCopy(env, discharge, jDischargeClass)
}
func javaDischargeMap(env jutil.Env, discharges map[string]security.Discharge) (jutil.Object, error) {
objectMap := make(map[jutil.Object]jutil.Object)
for key, discharge := range discharges {
jKey := jutil.JString(env, key)
jDischarge, err := JavaDischarge(env, discharge)
if err != nil {
return jutil.NullObject, err
}
objectMap[jKey] = jDischarge
}
return jutil.JObjectMap(env, objectMap)
}