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| 1 | +// Copyright 2016 The go-ethereum Authors |
| 2 | +// This file is part of go-ethereum. |
| 3 | +// |
| 4 | +// go-ethereum is free software: you can redistribute it and/or modify |
| 5 | +// it under the terms of the GNU General Public License as published by |
| 6 | +// the Free Software Foundation, either version 3 of the License, or |
| 7 | +// (at your option) any later version. |
| 8 | +// |
| 9 | +// go-ethereum is distributed in the hope that it will be useful, |
| 10 | +// but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | +// GNU General Public License for more details. |
| 13 | +// |
| 14 | +// You should have received a copy of the GNU General Public License |
| 15 | +// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. |
| 16 | + |
| 17 | +package mailserver |
| 18 | + |
| 19 | +import ( |
| 20 | + "crypto/ecdsa" |
| 21 | + "encoding/binary" |
| 22 | + "io/ioutil" |
| 23 | + "math/rand" |
| 24 | + "testing" |
| 25 | + "time" |
| 26 | + |
| 27 | + "github.com/ethereum/go-ethereum/common" |
| 28 | + "github.com/ethereum/go-ethereum/crypto" |
| 29 | + whisper "github.com/ethereum/go-ethereum/whisper/whisperv5" |
| 30 | +) |
| 31 | + |
| 32 | +const powRequirement = 0.00001 |
| 33 | +const keyName = "6d604bac5401ce9a6b995f1b45a4ab" |
| 34 | + |
| 35 | +var shh *whisper.Whisper |
| 36 | +var seed = time.Now().Unix() |
| 37 | + |
| 38 | +type ServerTestParams struct { |
| 39 | + topic whisper.TopicType |
| 40 | + low uint32 |
| 41 | + upp uint32 |
| 42 | + key *ecdsa.PrivateKey |
| 43 | +} |
| 44 | + |
| 45 | +func assert(statement bool, text string, t *testing.T) { |
| 46 | + if !statement { |
| 47 | + t.Fatal(text) |
| 48 | + } |
| 49 | +} |
| 50 | + |
| 51 | +func TestDBKey(t *testing.T) { |
| 52 | + var h common.Hash |
| 53 | + i := uint32(time.Now().Unix()) |
| 54 | + k := NewDbKey(i, h) |
| 55 | + assert(len(k.raw) == common.HashLength+4, "wrong DB key length", t) |
| 56 | + assert(byte(i%0x100) == k.raw[3], "raw representation should be big endian", t) |
| 57 | + assert(byte(i/0x1000000) == k.raw[0], "big endian expected", t) |
| 58 | +} |
| 59 | + |
| 60 | +func generateEnvelope(t *testing.T) *whisper.Envelope { |
| 61 | + params := &whisper.MessageParams{ |
| 62 | + KeySym: []byte("test key"), |
| 63 | + Topic: whisper.TopicType{}, |
| 64 | + Payload: []byte("test payload"), |
| 65 | + PoW: powRequirement, |
| 66 | + WorkTime: 2, |
| 67 | + } |
| 68 | + |
| 69 | + msg := whisper.NewSentMessage(params) |
| 70 | + env, err := msg.Wrap(params) |
| 71 | + if err != nil { |
| 72 | + t.Fatalf("failed to wrap with seed %d: %s.", seed, err) |
| 73 | + } |
| 74 | + return env |
| 75 | +} |
| 76 | + |
| 77 | +func TestMailServer(t *testing.T) { |
| 78 | + const password = "password_for_this_test" |
| 79 | + const dbPath = "whisper-server-test" |
| 80 | + |
| 81 | + _, err := ioutil.TempDir("", dbPath) |
| 82 | + if err != nil { |
| 83 | + t.Fatal(err) |
| 84 | + } |
| 85 | + |
| 86 | + var server WMailServer |
| 87 | + shh = whisper.NewWhisper(&server) |
| 88 | + server.Init(shh, dbPath, password, powRequirement) |
| 89 | + defer server.Close() |
| 90 | + |
| 91 | + err = shh.AddSymKey(keyName, []byte(password)) |
| 92 | + if err != nil { |
| 93 | + t.Fatalf("Failed to create symmetric key for mail request: %s", err) |
| 94 | + } |
| 95 | + |
| 96 | + rand.Seed(seed) |
| 97 | + env := generateEnvelope(t) |
| 98 | + server.Archive(env) |
| 99 | + deliverTest(t, &server, env) |
| 100 | +} |
| 101 | + |
| 102 | +func deliverTest(t *testing.T, server *WMailServer, env *whisper.Envelope) { |
| 103 | + testPeerID := shh.NewIdentity() |
| 104 | + birth := env.Expiry - env.TTL |
| 105 | + p := &ServerTestParams{ |
| 106 | + topic: env.Topic, |
| 107 | + low: birth - 1, |
| 108 | + upp: birth + 1, |
| 109 | + key: testPeerID, |
| 110 | + } |
| 111 | + singleRequest(t, server, env, p, true) |
| 112 | + |
| 113 | + p.low, p.upp = birth+1, 0xffffffff |
| 114 | + singleRequest(t, server, env, p, false) |
| 115 | + |
| 116 | + p.low, p.upp = 0, birth-1 |
| 117 | + singleRequest(t, server, env, p, false) |
| 118 | + |
| 119 | + p.low = birth - 1 |
| 120 | + p.upp = birth + 1 |
| 121 | + p.topic[0]++ |
| 122 | + singleRequest(t, server, env, p, false) |
| 123 | +} |
| 124 | + |
| 125 | +func singleRequest(t *testing.T, server *WMailServer, env *whisper.Envelope, p *ServerTestParams, expect bool) { |
| 126 | + request := createRequest(t, p) |
| 127 | + src := crypto.FromECDSAPub(&p.key.PublicKey) |
| 128 | + ok, lower, upper, topic := server.validateRequest(src, request) |
| 129 | + if !ok { |
| 130 | + t.Fatalf("request validation failed, seed: %d.", seed) |
| 131 | + } |
| 132 | + if lower != p.low { |
| 133 | + t.Fatalf("request validation failed (lower bound), seed: %d.", seed) |
| 134 | + } |
| 135 | + if upper != p.upp { |
| 136 | + t.Fatalf("request validation failed (upper bound), seed: %d.", seed) |
| 137 | + } |
| 138 | + if topic != p.topic { |
| 139 | + t.Fatalf("request validation failed (topic), seed: %d.", seed) |
| 140 | + } |
| 141 | + |
| 142 | + var exist bool |
| 143 | + mail := server.processRequest(nil, p.low, p.upp, p.topic) |
| 144 | + for _, msg := range mail { |
| 145 | + if msg.Hash() == env.Hash() { |
| 146 | + exist = true |
| 147 | + break |
| 148 | + } |
| 149 | + } |
| 150 | + |
| 151 | + if exist != expect { |
| 152 | + t.Fatalf("error: exist = %v, seed: %d.", exist, seed) |
| 153 | + } |
| 154 | + |
| 155 | + src[0]++ |
| 156 | + ok, lower, upper, topic = server.validateRequest(src, request) |
| 157 | + if ok { |
| 158 | + t.Fatalf("request validation false positive, seed: %d.", seed) |
| 159 | + } |
| 160 | +} |
| 161 | + |
| 162 | +func createRequest(t *testing.T, p *ServerTestParams) *whisper.Envelope { |
| 163 | + data := make([]byte, 8+whisper.TopicLength) |
| 164 | + binary.BigEndian.PutUint32(data, p.low) |
| 165 | + binary.BigEndian.PutUint32(data[4:], p.upp) |
| 166 | + copy(data[8:], p.topic[:]) |
| 167 | + |
| 168 | + params := &whisper.MessageParams{ |
| 169 | + KeySym: shh.GetSymKey(keyName), |
| 170 | + Topic: p.topic, |
| 171 | + Payload: data, |
| 172 | + PoW: powRequirement * 2, |
| 173 | + WorkTime: 2, |
| 174 | + Src: p.key, |
| 175 | + } |
| 176 | + |
| 177 | + msg := whisper.NewSentMessage(params) |
| 178 | + env, err := msg.Wrap(params) |
| 179 | + if err != nil { |
| 180 | + t.Fatalf("failed to wrap with seed %d: %s.", seed, err) |
| 181 | + } |
| 182 | + return env |
| 183 | +} |
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