How to use Serialize method of signal Package

Best Syzkaller code snippet using signal.Serialize

JSONSerializer.go

Source:JSONSerializer.go Github

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...5 "go.mau.fi/libsignal/logger"6 "go.mau.fi/libsignal/protocol"7 "go.mau.fi/libsignal/state/record"8)9// NewJSONSerializer will return a serializer for all Signal objects that will10// be responsible for converting objects to and from JSON bytes.11func NewJSONSerializer() *Serializer {12 serializer := NewSerializer()13 serializer.SignalMessage = &JSONSignalMessageSerializer{}14 serializer.PreKeySignalMessage = &JSONPreKeySignalMessageSerializer{}15 serializer.SignedPreKeyRecord = &JSONSignedPreKeyRecordSerializer{}16 serializer.PreKeyRecord = &JSONPreKeyRecordSerializer{}17 serializer.State = &JSONStateSerializer{}18 serializer.Session = &JSONSessionSerializer{}19 serializer.SenderKeyMessage = &JSONSenderKeyMessageSerializer{}20 serializer.SenderKeyDistributionMessage = &JSONSenderKeyDistributionMessageSerializer{}21 serializer.SenderKeyRecord = &JSONSenderKeySessionSerializer{}22 serializer.SenderKeyState = &JSONSenderKeyStateSerializer{}23 return serializer24}25// JSONSignalMessageSerializer is a structure for serializing signal messages into26// and from JSON.27type JSONSignalMessageSerializer struct{}28// Serialize will take a signal message structure and convert it to JSON bytes.29func (j *JSONSignalMessageSerializer) Serialize(signalMessage *protocol.SignalMessageStructure) []byte {30 serialized, err := json.Marshal(*signalMessage)31 if err != nil {32 logger.Error("Error serializing signal message: ", err)33 }34 // logger.Debug("Serialize result: ", string(serialized))35 return serialized36}37// Deserialize will take in JSON bytes and return a signal message structure.38func (j *JSONSignalMessageSerializer) Deserialize(serialized []byte) (*protocol.SignalMessageStructure, error) {39 var signalMessage protocol.SignalMessageStructure40 err := json.Unmarshal(serialized, &signalMessage)41 if err != nil {42 logger.Error("Error deserializing signal message: ", err)43 return nil, err44 }45 return &signalMessage, nil46}47// JSONPreKeySignalMessageSerializer is a structure for serializing prekey signal messages48// into and from JSON.49type JSONPreKeySignalMessageSerializer struct{}50// Serialize will take a prekey signal message structure and convert it to JSON bytes.51func (j *JSONPreKeySignalMessageSerializer) Serialize(signalMessage *protocol.PreKeySignalMessageStructure) []byte {52 serialized, err := json.Marshal(signalMessage)53 if err != nil {54 logger.Error("Error serializing prekey signal message: ", err)55 }56 // logger.Debug("Serialize result: ", string(serialized))57 return serialized58}59// Deserialize will take in JSON bytes and return a prekey signal message structure.60func (j *JSONPreKeySignalMessageSerializer) Deserialize(serialized []byte) (*protocol.PreKeySignalMessageStructure, error) {61 var preKeySignalMessage protocol.PreKeySignalMessageStructure62 err := json.Unmarshal(serialized, &preKeySignalMessage)63 if err != nil {64 logger.Error("Error deserializing prekey signal message: ", err)65 return nil, err66 }67 return &preKeySignalMessage, nil68}69// JSONSignedPreKeyRecordSerializer is a structure for serializing signed prekey records70// into and from JSON.71type JSONSignedPreKeyRecordSerializer struct{}72// Serialize will take a signed prekey record structure and convert it to JSON bytes.73func (j *JSONSignedPreKeyRecordSerializer) Serialize(signedPreKey *record.SignedPreKeyStructure) []byte {74 serialized, err := json.Marshal(signedPreKey)75 if err != nil {76 logger.Error("Error serializing signed prekey record: ", err)77 }78 // logger.Debug("Serialize result: ", string(serialized))79 return serialized80}81// Deserialize will take in JSON bytes and return a signed prekey record structure.82func (j *JSONSignedPreKeyRecordSerializer) Deserialize(serialized []byte) (*record.SignedPreKeyStructure, error) {83 var signedPreKeyStructure record.SignedPreKeyStructure84 err := json.Unmarshal(serialized, &signedPreKeyStructure)85 if err != nil {86 logger.Error("Error deserializing signed prekey record: ", err)87 return nil, err88 }89 return &signedPreKeyStructure, nil90}91// JSONPreKeyRecordSerializer is a structure for serializing prekey records92// into and from JSON.93type JSONPreKeyRecordSerializer struct{}94// Serialize will take a prekey record structure and convert it to JSON bytes.95func (j *JSONPreKeyRecordSerializer) Serialize(preKey *record.PreKeyStructure) []byte {96 serialized, err := json.Marshal(preKey)97 if err != nil {98 logger.Error("Error serializing prekey record: ", err)99 }100 // logger.Debug("Serialize result: ", string(serialized))101 return serialized102}103// Deserialize will take in JSON bytes and return a prekey record structure.104func (j *JSONPreKeyRecordSerializer) Deserialize(serialized []byte) (*record.PreKeyStructure, error) {105 var preKeyStructure record.PreKeyStructure106 err := json.Unmarshal(serialized, &preKeyStructure)107 if err != nil {108 logger.Error("Error deserializing prekey record: ", err)109 return nil, err110 }111 return &preKeyStructure, nil112}113// JSONStateSerializer is a structure for serializing session states into114// and from JSON.115type JSONStateSerializer struct{}116// Serialize will take a session state structure and convert it to JSON bytes.117func (j *JSONStateSerializer) Serialize(state *record.StateStructure) []byte {118 serialized, err := json.Marshal(state)119 if err != nil {120 logger.Error("Error serializing session state: ", err)121 }122 logger.Debug("Serialize result: ", string(serialized))123 return serialized124}125// Deserialize will take in JSON bytes and return a session state structure.126func (j *JSONStateSerializer) Deserialize(serialized []byte) (*record.StateStructure, error) {127 var stateStructure record.StateStructure128 err := json.Unmarshal(serialized, &stateStructure)129 if err != nil {130 logger.Error("Error deserializing session state: ", err)131 return nil, err132 }133 return &stateStructure, nil134}135// JSONSessionSerializer is a structure for serializing session records into136// and from JSON.137type JSONSessionSerializer struct{}138// Serialize will take a session structure and convert it to JSON bytes.139func (j *JSONSessionSerializer) Serialize(session *record.SessionStructure) []byte {140 serialized, err := json.Marshal(session)141 if err != nil {142 logger.Error("Error serializing session: ", err)143 }144 // logger.Debug("Serialize result: ", string(serialized))145 return serialized146}147// Deserialize will take in JSON bytes and return a session structure, which can be148// used to create a new Session Record object.149func (j *JSONSessionSerializer) Deserialize(serialized []byte) (*record.SessionStructure, error) {150 var sessionStructure record.SessionStructure151 err := json.Unmarshal(serialized, &sessionStructure)152 if err != nil {153 logger.Error("Error deserializing session: ", err)154 return nil, err155 }156 return &sessionStructure, nil157}158// JSONSenderKeyDistributionMessageSerializer is a structure for serializing senderkey159// distribution records to and from JSON.160type JSONSenderKeyDistributionMessageSerializer struct{}161// Serialize will take a senderkey distribution message and convert it to JSON bytes.162func (j *JSONSenderKeyDistributionMessageSerializer) Serialize(message *protocol.SenderKeyDistributionMessageStructure) []byte {163 serialized, err := json.Marshal(message)164 if err != nil {165 logger.Error("Error serializing senderkey distribution message: ", err)166 }167 // logger.Debug("Serialize result: ", string(serialized))168 return serialized169}170// Deserialize will take in JSON bytes and return a message structure, which can be171// used to create a new SenderKey Distribution object.172func (j *JSONSenderKeyDistributionMessageSerializer) Deserialize(serialized []byte) (*protocol.SenderKeyDistributionMessageStructure, error) {173 var msgStructure protocol.SenderKeyDistributionMessageStructure174 err := json.Unmarshal(serialized, &msgStructure)175 if err != nil {176 logger.Error("Error deserializing senderkey distribution message: ", err)177 return nil, err178 }179 return &msgStructure, nil180}181// JSONSenderKeyMessageSerializer is a structure for serializing senderkey182// messages to and from JSON.183type JSONSenderKeyMessageSerializer struct{}184// Serialize will take a senderkey message and convert it to JSON bytes.185func (j *JSONSenderKeyMessageSerializer) Serialize(message *protocol.SenderKeyMessageStructure) []byte {186 serialized, err := json.Marshal(message)187 if err != nil {188 logger.Error("Error serializing senderkey distribution message: ", err)189 }190 // logger.Debug("Serialize result: ", string(serialized))191 return serialized192}193// Deserialize will take in JSON bytes and return a message structure, which can be194// used to create a new SenderKey message object.195func (j *JSONSenderKeyMessageSerializer) Deserialize(serialized []byte) (*protocol.SenderKeyMessageStructure, error) {196 var msgStructure protocol.SenderKeyMessageStructure197 err := json.Unmarshal(serialized, &msgStructure)198 if err != nil {199 logger.Error("Error deserializing senderkey message: ", err)200 return nil, err201 }202 return &msgStructure, nil203}204// JSONSenderKeyStateSerializer is a structure for serializing group session states into205// and from JSON.206type JSONSenderKeyStateSerializer struct{}207// Serialize will take a session state structure and convert it to JSON bytes.208func (j *JSONSenderKeyStateSerializer) Serialize(state *groupRecord.SenderKeyStateStructure) []byte {209 serialized, err := json.Marshal(state)210 if err != nil {211 logger.Error("Error serializing session state: ", err)212 }213 // logger.Debug("Serialize result: ", string(serialized))214 return serialized215}216// Deserialize will take in JSON bytes and return a session state structure.217func (j *JSONSenderKeyStateSerializer) Deserialize(serialized []byte) (*groupRecord.SenderKeyStateStructure, error) {218 var stateStructure groupRecord.SenderKeyStateStructure219 err := json.Unmarshal(serialized, &stateStructure)220 if err != nil {221 logger.Error("Error deserializing session state: ", err)222 return nil, err223 }224 return &stateStructure, nil225}226// JSONSenderKeySessionSerializer is a structure for serializing session records into227// and from JSON.228type JSONSenderKeySessionSerializer struct{}229// Serialize will take a session structure and convert it to JSON bytes.230func (j *JSONSenderKeySessionSerializer) Serialize(session *groupRecord.SenderKeyStructure) []byte {231 serialized, err := json.Marshal(session)232 if err != nil {233 logger.Error("Error serializing session: ", err)234 }235 // logger.Debug("Serialize result: ", string(serialized))236 return serialized237}238// Deserialize will take in JSON bytes and return a session structure, which can be239// used to create a new Session Record object.240func (j *JSONSenderKeySessionSerializer) Deserialize(serialized []byte) (*groupRecord.SenderKeyStructure, error) {241 var sessionStructure groupRecord.SenderKeyStructure242 err := json.Unmarshal(serialized, &sessionStructure)243 if err != nil {244 logger.Error("Error deserializing session: ", err)245 return nil, err246 }247 return &sessionStructure, nil248}...

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prog_test.go

Source:prog_test.go Github

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...37 if err != nil {38 t.Fatalf("failed to restore default args in prog %q: %v", prog, err)39 }40 if len(p.Calls) != 1 || p.Calls[0].Meta.Name != meta.Name {41 t.Fatalf("restored bad program from prog %q: %q", prog, p.Serialize())42 }43 }44}45func testSerialize(t *testing.T, verbose bool) {46 target, rs, iters := initTest(t)47 ct := target.DefaultChoiceTable()48 for i := 0; i < iters; i++ {49 p := target.Generate(rs, 10, ct)50 var data []byte51 mode := NonStrict52 if verbose {53 data = p.SerializeVerbose()54 mode = Strict55 } else {56 data = p.Serialize()57 }58 p1, err := target.Deserialize(data, mode)59 if err != nil {60 t.Fatalf("failed to deserialize program: %v\n%s", err, data)61 }62 if p1 == nil {63 t.Fatalf("deserialized nil program:\n%s", data)64 }65 var data1 []byte66 if verbose {67 data1 = p1.SerializeVerbose()68 } else {69 data1 = p1.Serialize()70 }71 if len(p.Calls) != len(p1.Calls) {72 t.Fatalf("different number of calls")73 }74 if !bytes.Equal(data, data1) {75 t.Fatalf("program changed after serialize/deserialize\noriginal:\n%s\n\nnew:\n%s\n", data, data1)76 }77 }78}79func TestSerialize(t *testing.T) {80 testSerialize(t, false)81}82func TestSerializeVerbose(t *testing.T) {83 testSerialize(t, true)84}85func TestVmaType(t *testing.T) {86 target, rs, iters := initRandomTargetTest(t, "test", "64")87 ct := target.DefaultChoiceTable()88 meta := target.SyscallMap["test$vma0"]89 r := newRand(target, rs)90 pageSize := target.PageSize91 for i := 0; i < iters; i++ {92 s := newState(target, ct, nil)93 calls := r.generateParticularCall(s, meta)94 c := calls[len(calls)-1]95 if c.Meta.Name != "test$vma0" {96 t.Fatalf("generated wrong call %v", c.Meta.Name)97 }98 if len(c.Args) != 6 {99 t.Fatalf("generated wrong number of args %v", len(c.Args))100 }101 check := func(v, l Arg, min, max uint64) {102 va, ok := v.(*PointerArg)103 if !ok {104 t.Fatalf("vma has bad type: %v", v)105 }106 la, ok := l.(*ConstArg)107 if !ok {108 t.Fatalf("len has bad type: %v", l)109 }110 if va.VmaSize < min || va.VmaSize > max {111 t.Fatalf("vma has bad size: %v, want [%v-%v]",112 va.VmaSize, min, max)113 }114 if la.Val < min || la.Val > max {115 t.Fatalf("len has bad value: %v, want [%v-%v]",116 la.Val, min, max)117 }118 }119 check(c.Args[0], c.Args[1], 1*pageSize, 1e5*pageSize)120 check(c.Args[2], c.Args[3], 5*pageSize, 5*pageSize)121 check(c.Args[4], c.Args[5], 7*pageSize, 9*pageSize)122 }123}124// TestCrossTarget ensures that a program serialized for one arch can be125// deserialized for another arch. This happens when managers exchange126// programs via hub.127func TestCrossTarget(t *testing.T) {128 t.Parallel()129 const OS = "linux"130 var archs []string131 for _, target := range AllTargets() {132 if target.OS == OS {133 archs = append(archs, target.Arch)134 }135 }136 for _, arch := range archs {137 target, err := GetTarget(OS, arch)138 if err != nil {139 t.Fatal(err)140 }141 var crossTargets []*Target142 for _, crossArch := range archs {143 if crossArch == arch {144 continue145 }146 crossTarget, err := GetTarget(OS, crossArch)147 if err != nil {148 t.Fatal(err)149 }150 crossTargets = append(crossTargets, crossTarget)151 }152 t.Run(fmt.Sprintf("%v/%v", OS, arch), func(t *testing.T) {153 t.Parallel()154 testCrossTarget(t, target, crossTargets)155 })156 }157}158func testCrossTarget(t *testing.T, target *Target, crossTargets []*Target) {159 ct := target.DefaultChoiceTable()160 rs := randSource(t)161 iters := 100162 if testing.Short() {163 iters /= 10164 }165 for i := 0; i < iters; i++ {166 p := target.Generate(rs, 20, ct)167 testCrossArchProg(t, p, crossTargets)168 p, err := target.Deserialize(p.Serialize(), NonStrict)169 if err != nil {170 t.Fatal(err)171 }172 testCrossArchProg(t, p, crossTargets)173 p.Mutate(rs, 20, ct, nil)174 testCrossArchProg(t, p, crossTargets)175 p, _ = Minimize(p, -1, false, func(*Prog, int) bool {176 return rs.Int63()%2 == 0177 })178 testCrossArchProg(t, p, crossTargets)179 }180}181func testCrossArchProg(t *testing.T, p *Prog, crossTargets []*Target) {182 serialized := p.Serialize()183 for _, crossTarget := range crossTargets {184 _, err := crossTarget.Deserialize(serialized, NonStrict)185 if err == nil || strings.Contains(err.Error(), "unknown syscall") {186 continue187 }188 t.Fatalf("failed to deserialize for %v/%v: %v\n%s",189 crossTarget.OS, crossTarget.Arch, err, serialized)190 }191}192func TestSpecialStructs(t *testing.T) {193 testEachTargetRandom(t, func(t *testing.T, target *Target, rs rand.Source, iters int) {194 _ = target.GenerateAllSyzProg(rs)195 ct := target.DefaultChoiceTable()196 for special, gen := range target.SpecialTypes {197 t.Run(special, func(t *testing.T) {198 var typ Type199 for i := 0; i < len(target.Syscalls) && typ == nil; i++ {200 ForeachCallType(target.Syscalls[i], func(t Type, ctx TypeCtx) {201 if ctx.Dir == DirOut {202 return203 }204 if s, ok := t.(*StructType); ok && s.Name() == special {205 typ = s206 }207 if s, ok := t.(*UnionType); ok && s.Name() == special {208 typ = s209 }210 })211 }212 if typ == nil {213 t.Fatal("can't find struct description")214 }215 g := &Gen{newRand(target, rs), newState(target, ct, nil)}216 for i := 0; i < iters/len(target.SpecialTypes); i++ {217 var arg Arg218 for i := 0; i < 2; i++ {219 arg, _ = gen(g, typ, DirInOut, arg)220 if arg.Dir() != DirInOut {221 t.Fatalf("got wrong arg dir %v", arg.Dir())222 }223 }224 }225 })226 }227 })228}229func TestEscapingPaths(t *testing.T) {230 paths := map[string]bool{231 "/": true,232 "/\x00": true,233 "/file/..": true,234 "/file/../..": true,235 "./..": true,236 "..": true,237 "file/../../file": true,238 "../file": true,239 "./file/../../file/file": true,240 "": false,241 ".": false,242 "file": false,243 "./file": false,244 "./file/..": false,245 }246 for path, want := range paths {247 got := escapingFilename(path)248 if got != want {249 t.Errorf("path %q: got %v, want %v", path, got, want)250 }251 }252}253func TestFallbackSignal(t *testing.T) {254 type desc struct {255 prog string256 info []CallInfo257 }258 tests := []desc{259 // Test restored errno values and that non-executed syscalls don't get fallback signal.260 {261 `262fallback$0()263fallback$0()264fallback$0()265`,266 []CallInfo{267 {268 Flags: CallExecuted,269 Errno: 0,270 Signal: make([]uint32, 1),271 },272 {273 Flags: CallExecuted,274 Errno: 42,275 Signal: make([]uint32, 1),276 },277 {},278 },279 },280 // Test different cases of argument-dependent signal and that unsuccessful calls don't get it.281 {282 `283r0 = fallback$0()284fallback$1(r0)285fallback$1(r0)286fallback$1(0xffffffffffffffff)287fallback$1(0x0)288fallback$1(0x0)289`,290 []CallInfo{291 {292 Flags: CallExecuted,293 Errno: 0,294 Signal: make([]uint32, 1),295 },296 {297 Flags: CallExecuted,298 Errno: 1,299 Signal: make([]uint32, 1),300 },301 {302 Flags: CallExecuted,303 Errno: 0,304 Signal: make([]uint32, 2),305 },306 {307 Flags: CallExecuted,308 Errno: 0,309 Signal: make([]uint32, 1),310 },311 {312 Flags: CallExecuted,313 Errno: 0,314 Signal: make([]uint32, 2),315 },316 {317 Flags: CallExecuted,318 Errno: 2,319 Signal: make([]uint32, 1),320 },321 },322 },323 // Test that calls get no signal after a successful seccomp.324 {325 `326fallback$0()327fallback$0()328breaks_returns()329fallback$0()330breaks_returns()331fallback$0()332fallback$0()333`,334 []CallInfo{335 {336 Flags: CallExecuted,337 Errno: 0,338 Signal: make([]uint32, 1),339 },340 {341 Flags: CallExecuted,342 Errno: 0,343 Signal: make([]uint32, 1),344 },345 {346 Flags: CallExecuted,347 Errno: 1,348 Signal: make([]uint32, 1),349 },350 {351 Flags: CallExecuted,352 Errno: 0,353 },354 {355 Flags: CallExecuted,356 Errno: 0,357 },358 {359 Flags: CallExecuted,360 },361 {362 Flags: CallExecuted,363 },364 },365 },366 {367 `368fallback$0()369breaks_returns()370fallback$0()371breaks_returns()372fallback$0()373`,374 []CallInfo{375 {376 Flags: CallExecuted,377 Errno: 0,378 Signal: make([]uint32, 1),379 },380 {381 Flags: CallExecuted,382 Errno: 1,383 Signal: make([]uint32, 1),384 },385 {386 Flags: CallExecuted,387 Errno: 0,388 },389 {390 Flags: CallExecuted,391 Errno: 0,392 },393 {394 Flags: CallExecuted,395 },396 },397 },398 }399 target, err := GetTarget("test", "64")400 if err != nil {401 t.Fatal(err)402 }403 for i, test := range tests {404 t.Run(fmt.Sprint(i), func(t *testing.T) {405 p, err := target.Deserialize([]byte(test.prog), Strict)406 if err != nil {407 t.Fatal(err)408 }409 if len(p.Calls) != len(test.info) {410 t.Fatalf("call=%v info=%v", len(p.Calls), len(test.info))411 }412 wantSignal := make([]int, len(test.info))413 for i := range test.info {414 wantSignal[i] = len(test.info[i].Signal)415 test.info[i].Signal = nil416 }417 p.FallbackSignal(test.info)418 for i := range test.info {419 if len(test.info[i].Signal) != wantSignal[i] {420 t.Errorf("call %v: signal=%v want=%v", i, len(test.info[i].Signal), wantSignal[i])421 }422 for _, sig := range test.info[i].Signal {423 call, errno := DecodeFallbackSignal(sig)424 if call != p.Calls[i].Meta.ID {425 t.Errorf("call %v: sig=%x id=%v want=%v", i, sig, call, p.Calls[i].Meta.ID)426 }427 if errno != test.info[i].Errno {428 t.Errorf("call %v: sig=%x errno=%v want=%v", i, sig, errno, test.info[i].Errno)429 }430 }431 }432 })433 }434}435func TestSanitizeRandom(t *testing.T) {436 testEachTargetRandom(t, func(t *testing.T, target *Target, rs rand.Source, iters int) {437 ct := target.DefaultChoiceTable()438 for i := 0; i < iters; i++ {439 p := target.Generate(rs, 10, ct)440 s0 := string(p.Serialize())441 p.sanitizeFix()442 s1 := string(p.Serialize())443 if s0 != s1 {444 t.Fatalf("non-sanitized program or non-idempotent sanitize\nwas: %v\ngot: %v", s0, s1)445 }446 }447 })448}...

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ProtoBufferSerializer.go

Source:ProtoBufferSerializer.go Github

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...7 "go.mau.fi/libsignal/util/bytehelper"8 "go.mau.fi/libsignal/util/optional"9 proto "google.golang.org/protobuf/proto"10)11// NewProtoBufSerializer will return a serializer for all Signal objects that will12// be responsible for converting objects to and from ProtoBuf bytes.13func NewProtoBufSerializer() *Serializer {14 serializer := NewSerializer()15 serializer.SignalMessage = &ProtoBufSignalMessageSerializer{}16 serializer.PreKeySignalMessage = &ProtoBufPreKeySignalMessageSerializer{}17 serializer.SenderKeyMessage = &ProtoBufSenderKeyMessageSerializer{}18 serializer.SenderKeyDistributionMessage = &ProtoBufSenderKeyDistributionMessageSerializer{}19 serializer.SignedPreKeyRecord = &JSONSignedPreKeyRecordSerializer{}20 serializer.PreKeyRecord = &JSONPreKeyRecordSerializer{}21 serializer.State = &JSONStateSerializer{}22 serializer.Session = &JSONSessionSerializer{}23 serializer.SenderKeyRecord = &JSONSenderKeySessionSerializer{}24 serializer.SenderKeyState = &JSONSenderKeyStateSerializer{}25 return serializer26}27func highBitsToInt(value byte) int {28 return int((value & 0xFF) >> 4)29}30func intsToByteHighAndLow(highValue, lowValue int) byte {31 return byte((highValue<<4 | lowValue) & 0xFF)32}33// ProtoBufSignalMessageSerializer is a structure for serializing signal messages into34// and from ProtoBuf.35type ProtoBufSignalMessageSerializer struct{}36// Serialize will take a signal message structure and convert it to ProtoBuf bytes.37func (j *ProtoBufSignalMessageSerializer) Serialize(signalMessage *protocol.SignalMessageStructure) []byte {38 sm := &SignalMessage{39 RatchetKey: signalMessage.RatchetKey,40 Counter: &signalMessage.Counter,41 PreviousCounter: &signalMessage.PreviousCounter,42 Ciphertext: signalMessage.CipherText,43 }44 var serialized []byte45 message, err := proto.Marshal(sm)46 if err != nil {47 logger.Error("Error serializing signal message: ", err)48 }49 if signalMessage.Version != 0 {50 serialized = append(serialized, []byte(strconv.Itoa(signalMessage.Version))...)51 }52 serialized = append(serialized, message...)53 if signalMessage.Mac != nil {54 serialized = append(serialized, signalMessage.Mac...)55 }56 return serialized57}58// Deserialize will take in ProtoBuf bytes and return a signal message structure.59func (j *ProtoBufSignalMessageSerializer) Deserialize(serialized []byte) (*protocol.SignalMessageStructure, error) {60 parts, err := bytehelper.SplitThree(serialized, 1, len(serialized)-1-protocol.MacLength, protocol.MacLength)61 if err != nil {62 logger.Error("Error split signal message: ", err)63 return nil, err64 }65 version := highBitsToInt(parts[0][0])66 message := parts[1]67 mac := parts[2]68 var sm SignalMessage69 err = proto.Unmarshal(message, &sm)70 if err != nil {71 logger.Error("Error deserializing signal message: ", err)72 return nil, err73 }74 signalMessage := protocol.SignalMessageStructure{75 Version: version,76 RatchetKey: sm.GetRatchetKey(),77 Counter: sm.GetCounter(),78 PreviousCounter: sm.GetPreviousCounter(),79 CipherText: sm.GetCiphertext(),80 Mac: mac,81 }82 return &signalMessage, nil83}84// ProtoBufPreKeySignalMessageSerializer is a structure for serializing prekey signal messages85// into and from ProtoBuf.86type ProtoBufPreKeySignalMessageSerializer struct{}87// Serialize will take a prekey signal message structure and convert it to ProtoBuf bytes.88func (j *ProtoBufPreKeySignalMessageSerializer) Serialize(signalMessage *protocol.PreKeySignalMessageStructure) []byte {89 preKeyMessage := &PreKeySignalMessage{90 RegistrationId: &signalMessage.RegistrationID,91 SignedPreKeyId: &signalMessage.SignedPreKeyID,92 BaseKey: signalMessage.BaseKey,93 IdentityKey: signalMessage.IdentityKey,94 Message: signalMessage.Message,95 }96 if !signalMessage.PreKeyID.IsEmpty {97 preKeyMessage.PreKeyId = &signalMessage.PreKeyID.Value98 }99 message, err := proto.Marshal(preKeyMessage)100 if err != nil {101 logger.Error("Error serializing prekey signal message: ", err)102 }103 serialized := append([]byte(strconv.Itoa(signalMessage.Version)), message...)104 logger.Debug("Serialize PreKeySignalMessage result: ", serialized)105 return serialized106}107// Deserialize will take in ProtoBuf bytes and return a prekey signal message structure.108func (j *ProtoBufPreKeySignalMessageSerializer) Deserialize(serialized []byte) (*protocol.PreKeySignalMessageStructure, error) {109 version := highBitsToInt(serialized[0])110 message := serialized[1:]111 var sm PreKeySignalMessage112 err := proto.Unmarshal(message, &sm)113 if err != nil {114 logger.Error("Error deserializing prekey signal message: ", err)115 return nil, err116 }117 preKeyId := optional.NewEmptyUint32()118 if sm.GetPreKeyId() != 0 {119 preKeyId = optional.NewOptionalUint32(sm.GetPreKeyId())120 }121 preKeySignalMessage := protocol.PreKeySignalMessageStructure{122 Version: version,123 RegistrationID: sm.GetRegistrationId(),124 BaseKey: sm.GetBaseKey(),125 IdentityKey: sm.GetIdentityKey(),126 SignedPreKeyID: sm.GetSignedPreKeyId(),127 Message: sm.GetMessage(),128 PreKeyID: preKeyId,129 }130 return &preKeySignalMessage, nil131}132// ProtoBufSenderKeyDistributionMessageSerializer is a structure for serializing senderkey133// distribution records to and from ProtoBuf.134type ProtoBufSenderKeyDistributionMessageSerializer struct{}135// Serialize will take a senderkey distribution message and convert it to ProtoBuf bytes.136func (j *ProtoBufSenderKeyDistributionMessageSerializer) Serialize(message *protocol.SenderKeyDistributionMessageStructure) []byte {137 senderDis := SenderKeyDistributionMessage{138 Id: &message.ID,139 Iteration: &message.Iteration,140 ChainKey: message.ChainKey,141 SigningKey: message.SigningKey,142 }143 serialized, err := proto.Marshal(&senderDis)144 if err != nil {145 logger.Error("Error serializing senderkey distribution message: ", err)146 }147 version := strconv.Itoa(int(message.Version))148 serialized = append([]byte(version), serialized...)149 logger.Debug("Serialize result: ", serialized)150 return serialized151}152// Deserialize will take in ProtoBuf bytes and return a message structure, which can be153// used to create a new SenderKey Distribution object.154func (j *ProtoBufSenderKeyDistributionMessageSerializer) Deserialize(serialized []byte) (*protocol.SenderKeyDistributionMessageStructure, error) {155 version := uint32(highBitsToInt(serialized[0]))156 message := serialized[1:]157 var senderKeyDis SenderKeyDistributionMessage158 err := proto.Unmarshal(message, &senderKeyDis)159 if err != nil {160 logger.Error("Error deserializing senderkey distribution message: ", err)161 return nil, err162 }163 msgStructure := protocol.SenderKeyDistributionMessageStructure{164 ID: senderKeyDis.GetId(),165 Iteration: senderKeyDis.GetIteration(),166 ChainKey: senderKeyDis.GetChainKey(),167 SigningKey: senderKeyDis.GetSigningKey(),168 Version: version,169 }170 return &msgStructure, nil171}172// ProtoBufSenderKeyMessageSerializer is a structure for serializing senderkey173// messages to and from ProtoBuf.174type ProtoBufSenderKeyMessageSerializer struct{}175// Serialize will take a senderkey message and convert it to ProtoBuf bytes.176func (j *ProtoBufSenderKeyMessageSerializer) Serialize(message *protocol.SenderKeyMessageStructure) []byte {177 senderMessage := &SenderKeyMessage{178 Id: &message.ID,179 Iteration: &message.Iteration,180 Ciphertext: message.CipherText,181 }182 var serialized []byte183 m, err := proto.Marshal(senderMessage)184 if err != nil {185 logger.Error("Error serializing signal message: ", err)186 }187 if message.Version != 0 {188 serialized = append([]byte(fmt.Sprint(message.Version)), m...)189 }190 if message.Signature != nil {191 serialized = append(serialized, message.Signature...)192 }193 logger.Debug("Serialize result: ", serialized)194 return serialized195}196// Deserialize will take in ProtoBuf bytes and return a message structure, which can be197// used to create a new SenderKey message object.198func (j *ProtoBufSenderKeyMessageSerializer) Deserialize(serialized []byte) (*protocol.SenderKeyMessageStructure, error) {199 parts, err := bytehelper.SplitThree(serialized, 1, len(serialized)-1-64, 64)200 if err != nil {201 logger.Error("Error split signal message: ", err)202 return nil, err203 }204 version := uint32(highBitsToInt(parts[0][0]))205 message := parts[1]206 signature := parts[2]207 var senderKey SenderKeyMessage208 err = proto.Unmarshal(message, &senderKey)209 if err != nil {210 logger.Error("Error deserializing senderkey message: ", err)211 return nil, err212 }...

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1import (2func main() {3 app := widgets.NewQApplication(len(os.Args), os.Args)4 window := widgets.NewQMainWindow(nil, 0)5 window.SetWindowTitle("Hello World Example")6 window.SetMinimumSize2(200, 200)7 label := widgets.NewQLabel(nil, 0)8 label.SetText("Hello World!")9 label.SetAlignment(core.Qt__AlignCenter)10 window.SetCentralWidget(label)11 window.Show()12 app.Exec()13}14The code for the 5.go file is also simple. We import the widgets and core packages. We

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1import (2func main() {3 conn, err := dbus.SystemBus()4 if err != nil {5 fmt.Printf("Failed to connect to system bus: %s", err)6 }7 obj := conn.Object("com.example.SampleService", "/com/example/SampleObject")8 call := obj.Call("com.example.SampleInterface.SampleMethod", 0, 1, 2, 3)9 if call.Err != nil {10 fmt.Printf("Error calling SampleMethod: %s", call.Err)11 }12 err = call.Store(&a, &b, &c)13 if err != nil {14 fmt.Printf("Error storing return values: %s", err)15 }16 fmt.Printf("SampleMethod returned: %d, %d, %d", a, b, c)17}18import (19func main() {20 conn, err := dbus.SystemBus()21 if err != nil {22 fmt.Printf("Failed to connect to system bus: %s", err)23 }24 obj := conn.Object("com.example.SampleService", "/com/example/SampleObject")25 call := obj.Call("com.example.SampleInterface.SampleMethod", 0, 1, 2, 3)26 if call.Err != nil {27 fmt.Printf("Error calling SampleMethod: %s", call.Err)28 }29 err = call.Store(&a, &b, &c)30 if err != nil {31 fmt.Printf("Error storing return values: %s", err)32 }33 fmt.Printf("SampleMethod returned: %d, %d, %d", a, b, c)34}35import (36func main() {

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1import (2func main() {3 conn, err := dbus.SystemBus()4 if err != nil {5 fmt.Println("Failed to connect to system bus:", err)6 }7 s := conn.Object("org.freedesktop.DBus", "/org/freedesktop/DBus")8 call := s.Call("org.freedesktop.DBus.Signal.Serialize", 0)9 if call.Err != nil {10 fmt.Println("Error in serializing the signal:", call.Err)11 }12 str := call.Body[0].(string)13 fmt.Println("Serialized string is:", str)14 call = s.Call("org.freedesktop.DBus.Signal.Deserialize", 0, str)15 if call.Err != nil {16 fmt.Println("Error in deserializing the signal:", call.Err)17 }18 sig := call.Body[0].(dbus.Signal)19 fmt.Println("Deserialized signal is:", sig)20 time.Sleep(2 * time.Second)21}22Serialized string is: [2,["org.freedesktop.DBus","NameOwnerChanged",["/org/freedesktop/DBus","org.freedesktop.DBus",":1.1"]],{"sender":"org.freedesktop.DBus","path":"/org/freedesktop/DBus","interface":"org.freedesktop.DBus","member":"NameOwnerChanged","destination":"org.freedesktop.DBus","type":"signal","serial":3,"timestamp":1602591868,"signature":"sss","unix_fds":0}]23Deserialized signal is: {Name:org.freedesktop.DBus Path:/org/freedesktop/DBus Interface:org.freedesktop.DBus Member:NameOwnerChanged Destination:org.freedesktop.DBus Sender:org.freedesktop.DBus Type:signal Flags:0 Serial:3 Timestamp:1602591868 Signature:sss Body:[/org/freedesktop/DBus org.freedesktop.DBus :1.1]}

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1import (2func main() {3 app := widgets.NewQApplication(len(os.Args), os.Args)4 window := widgets.NewQMainWindow(nil, 0)5 window.SetWindowTitle("Hello World Example")6 window.SetMinimumSize2(200, 200)7 label := widgets.NewQLabel(nil, 0)8 label.SetText("Hello World!")9 label.SetAlignment(core.Qt__AlignCenter)10 window.SetCentralWidget(label)11 window.Show()12 app.Exec()13}14import (15func main() {16 app := widgets.NewQApplication(len(os.Args), os.Args)17 window := widgets.NewQMainWindow(nil, 0)18 window.SetWindowTitle("Hello World Example")19 window.SetMinimumSize2(200, 200)20 label := widgets.NewQLabel(nil, 0)21 label.SetText("Hello World!")22 label.SetAlignment(core.Qt__AlignCenter)23 window.SetCentralWidget(label)24 window.Show()25 app.Exec()26}27import (28func main() {29 app := widgets.NewQApplication(len(os.Args), os.Args)30 window := widgets.NewQMainWindow(nil, 0)31 window.SetWindowTitle("Hello World Example")32 window.SetMinimumSize2(200, 200)33 label := widgets.NewQLabel(nil, 0)34 label.SetText("Hello World!")35 label.SetAlignment(core.Qt__AlignCenter)36 window.SetCentralWidget(label)37 window.Show()38 app.Exec()39}

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1import "github.com/godbus/dbus"2func main() {3 conn, err := dbus.SystemBus()4 if err != nil {5 fmt.Println("Error in connecting to system bus: ", err)6 }7 call := conn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'")8 if call.Err != nil {9 fmt.Println("Error in adding match: ", call.Err)10 }11 ch := make(chan *dbus.Signal, 10)12 conn.Signal(ch)13 for v := range ch {14 fmt.Println("Signal received: ", v)15 }16}17Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}18Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}19Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}20Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}21Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}22Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0x7f1b9c0002a0}23Signal received: &{org.freedesktop.DBus NameOwnerChanged [org.freedesktop.DBus :1.3 org.freedesktop.DBus :1.3] 0

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1import (2func main() {3 sig := &dbus.Signal{4 Path: dbus.ObjectPath("/com/example/path"),5 Body: []interface{}{"some", "data"},6 }7 sigBytes, err := sig.Serialize()8 if err != nil {9 fmt.Println(err)10 }

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1import (2type IFace struct {3}4type Signal struct {5}6func (s *Signal) Serialize() string {7 return fmt.Sprintf("%v %v", s.Type, s.Data)8}9func main() {10 s := Signal{11 IFace: IFace{12 },13 }14 fmt.Println(s.Serialize())15}16import (17type IFace struct {18}19type Signal struct {20}21func (s *Signal) Serialize() string {22 return fmt.Sprintf("%v %v", s.Type, s.Data)23}24func main() {25 s := Signal{26 IFace: IFace{27 },28 }29 fmt.Println(s.Serialize())30}31import (32type IFace struct {33}34type Signal struct {35}36func (s *Signal) Serialize() string {37 return fmt.Sprintf("%v %v", s.Type, s.Data)38}39func main() {40 s := Signal{41 IFace: IFace{42 },43 }44 fmt.Println(s.Serialize())45}46import (47type IFace struct {48}49type Signal struct {50}51func (s *Signal) Serialize() string {52 return fmt.Sprintf("%v %v", s.Type, s.Data)53}54func main() {55 s := Signal{56 IFace: IFace{57 },58 }59 fmt.Println(s.Serialize())60}

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1import (2func main() {3 sig1 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged")4 fmt.Println(sig1)5 sig2 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged", "org.freedesktop.DBus.NameOwnerChanged")6 fmt.Println(sig2)7 sig3 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged", "org.freedesktop.DBus.NameOwnerChanged", "s")8 fmt.Println(sig3)9 sig4 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged", "org.freedesktop.DBus.NameOwnerChanged", "s", "Hello")10 fmt.Println(sig4)11 sig5 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged", "org.freedesktop.DBus.NameOwnerChanged", "s", "Hello", "world")12 fmt.Println(sig5)13 sig6 := dbus.MakeSignal("/org/freedesktop/DBus/NameOwnerChanged", "org.freedesktop.DBus.NameOwnerChanged", "s", "Hello", "world", dbus.FieldDirectionOut)14 fmt.Println(sig6)15}

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1import (2func main() {3 s := signal.NewSignal()4 s.SetName("Signal1")5 s.SetType("Analog")6 s.SetUnit("Volt")7 s.SetDescription("This is a test signal")8 s.SetDataFormat("32-bit float")9 s.SetSampleRate(1000)10 s.SetSampleCount(100)11 s.SetStartTime(0)

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