How to use Timeout method of venom Package

Best Venom code snippet using venom.Timeout

mqtt.go

Source:mqtt.go Github

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...9 "github.com/pkg/errors"10)11// Name of executor12const Name = "mqtt"13const disconnectTimeoutMs = 50014const defaultExecutorTimeoutMs = 500015const defaultConnectTimeoutMs = 500016const mqttV311 = 417// New returns a new Executor18func New() venom.Executor {19 return &Executor{}20}21type Executor struct {22 Addrs string `json:"addrs" yaml:"addrs"`23 // ClientType must be "consumer", "producer" or "persistent_queue"24 ClientType string `json:"client_type" yaml:"clientType"`25 PersistSubscription bool `json:"persist_subscription" yaml:"persistSubscription"`26 ClientID string `json:"client_id" yaml:"clientId"`27 // Subscription topic28 Topics []string `json:"topics" yaml:"topics"`29 // Represents the limit of message will be read. After limit, consumer stop read message30 MessageLimit int `json:"message_limit" yaml:"messageLimit"`31 // Represents the mqtt connection timeout for reading messages. In Milliseconds. Default 500032 ConnectTimeout int64 `json:"connect_timeout,omitempty" yaml:"connectTimeout,omitempty"`33 // Represents the timeout for reading messages. In Milliseconds. Default 500034 Timeout int64 `json:"timeout,omitempty" yaml:"timeout,omitempty"`35 // Used when ClientType is producer36 // Messages represents the message sent by producer37 Messages []Message `json:"messages" yaml:"messages"`38 QOS byte `json:"qos" yaml:"qos"`39}40// Message represents the object sent or received from rabbitmq41type Message struct {42 Topic string `json:"topic" yaml:"topic"`43 QOS byte `json:"qos" yaml:"qos"`44 Retained bool `json:"retained" yaml:"retained"`45 Payload string `json:"payload" yaml:"payload"`46}47// Result represents a step result.48type Result struct {49 TimeSeconds float64 `json:"timeseconds" yaml:"timeSeconds"`50 Topics []string `json:"topics" yaml:"topics"`51 Messages []interface{} `json:"messages" yaml:"messages"`52 MessagesJSON []interface{} `json:"messagesjson" yaml:"messagesJSON"`53 Err string `json:"err" yaml:"error"`54}55// GetDefaultAssertions return default assertions for type exec56func (Executor) GetDefaultAssertions() *venom.StepAssertions {57 return &venom.StepAssertions{Assertions: []venom.Assertion{"result.error ShouldBeEmpty"}}58}59func (Executor) Run(ctx context.Context, step venom.TestStep) (interface{}, error) {60 // transform step to Executor Instance61 var e Executor62 if err := mapstructure.Decode(step, &e); err != nil {63 return nil, err64 }65 start := time.Now()66 result := Result{}67 // Default values68 if e.Addrs == "" {69 return nil, errors.New("address is mandatory")70 }71 if e.MessageLimit == 0 {72 e.MessageLimit = 173 }74 if e.Timeout == 0 {75 e.Timeout = defaultExecutorTimeoutMs76 }77 if e.ConnectTimeout == 0 {78 e.ConnectTimeout = defaultConnectTimeoutMs79 }80 var err error81 switch e.ClientType {82 case "publisher":83 err = e.publishMessages(ctx)84 if err != nil {85 result.Err = err.Error()86 }87 case "persistent_queue":88 err = e.persistMessages(ctx)89 if err != nil {90 result.Err = err.Error()91 }92 case "subscriber":93 result.Messages, result.MessagesJSON, result.Topics, err = e.consumeMessages(ctx)94 if err != nil {95 result.Err = err.Error()96 }97 default:98 return nil, fmt.Errorf("clientType %q must be publisher, subscriber or persistent_queue", e.ClientType)99 }100 elapsed := time.Since(start)101 result.TimeSeconds = elapsed.Seconds()102 return result, nil103}104// session prepares a client connection returning a client and a possible error105func (e Executor) session(ctx context.Context, subscriber func(client mq.Client, message mq.Message)) (mq.Client, error) {106 venom.Debug(ctx, "creating session to %v, cleanSession: %v, clientID: %v", e.Addrs, !e.PersistSubscription, e.ClientID)107 opts := mq.NewClientOptions().108 AddBroker(e.Addrs).109 SetConnectTimeout(time.Duration(e.ConnectTimeout) * time.Millisecond).110 SetCleanSession(!e.PersistSubscription).111 SetClientID(e.ClientID).112 SetProtocolVersion(mqttV311).113 SetOnConnectHandler(func(client mq.Client) {114 venom.Debug(ctx, "connection handler called. IsConnected: %v", client.IsConnected())115 })116 client := mq.NewClient(opts)117 // MQTT may send messages prior to a subscription taking place (due to pre-existing persistent session).118 // We cannot subscribe without a connection so we register a route and subscribe later119 if subscriber != nil {120 venom.Debug(ctx, "adding routes: %v", e.Topics)121 for _, topic := range e.Topics {122 client.AddRoute(topic, subscriber)123 }124 }125 token := client.Connect()126 select {127 case <-token.Done():128 if token.Error() != nil {129 venom.Debug(ctx, "connection setup failed")130 return nil, errors.Wrap(token.Error(), "failed to connect to MQTT")131 }132 // else connection complete, all good.133 case <-time.After(time.Duration(e.Timeout) * time.Millisecond):134 venom.Debug(ctx, "connection timeout")135 return nil, errors.Wrap(token.Error(), "failed to connect to MQTT")136 case <-ctx.Done():137 venom.Debug(ctx, "Context requested cancellation in session()")138 return nil, errors.New("Context requested cancellation in session()")139 }140 venom.Debug(ctx, "connection setup completed")141 return client, nil142}143// publishMessages is a step that sends configured messages to client connection144func (e Executor) publishMessages(ctx context.Context) error {145 client, err := e.session(ctx, nil)146 if err != nil {147 venom.Debug(ctx, "Failed to create session (publishMessages)")148 return err149 }150 defer client.Disconnect(disconnectTimeoutMs)151 for i, m := range e.Messages {152 if len(m.Topic) == 0 {153 return errors.Errorf("mandatory field Topic was empty in Messages[%v](%v)", i, m)154 }155 token := client.Publish(m.Topic, m.QOS, m.Retained, m.Payload)156 select {157 case <-token.Done():158 if token.Error() != nil {159 venom.Debug(ctx, "Message publish failed")160 return errors.Wrapf(token.Error(), "Message publish failed: Messages[%v](%v)", i, m)161 }162 // else publish complete, all good.163 case <-time.After(time.Duration(e.Timeout) * time.Millisecond):164 venom.Debug(ctx, "Publish attempt timed out")165 return errors.Errorf("Publish attempt timed out on topic %v", m.Topic)166 case <-ctx.Done():167 venom.Debug(ctx, "Context requested cancellation in publishMessages()")168 return errors.New("Context requested cancellation in publishMessages()")169 }170 venom.Debug(ctx, "Message[%v] %q sent (topic: %q)", i, m.Payload, m.Topic)171 }172 return nil173}174// consumeMessages is a step to consume messages from mqtt broker using client connection175func (e Executor) consumeMessages(ctx context.Context) (messages []interface{}, messagesJSON []interface{}, topics []string, err error) {176 ch := make(chan mq.Message, 1)177 defer close(ch)178 subscriber := newSubscriber(ctx, ch)179 client, err := e.session(ctx, subscriber)180 if err != nil {181 venom.Debug(ctx, "Failed to create session (consumeMessages)")182 return nil, nil, nil, err183 }184 defer client.Disconnect(disconnectTimeoutMs)185 start := time.Now()186 for _, topic := range e.Topics {187 token := client.Subscribe(topic, e.QOS, subscriber)188 select {189 case <-token.Done():190 if token.Error() != nil {191 venom.Debug(ctx, "Failed to subscribe")192 return nil, nil, nil, errors.Wrapf(token.Error(), "failed to subscribe to topic %v", topic)193 }194 // else subscription complete, all good.195 case <-time.After(time.Duration(e.Timeout) * time.Millisecond):196 venom.Debug(ctx, "Subscription attempt timed out")197 return nil, nil, nil, errors.Errorf("Subscription attempt timed out on topic %v", topic)198 case <-ctx.Done():199 venom.Debug(ctx, "Context requested cancellation")200 return nil, nil, nil, errors.New("Context requested cancellation")201 }202 }203 messages = []interface{}{}204 messagesJSON = []interface{}{}205 topics = []string{}206 venom.Debug(ctx, "message limit %d", e.MessageLimit)207 ctx2, cancel := context.WithTimeout(ctx, time.Duration(e.Timeout)*time.Millisecond)208 defer cancel()209 for i := 0; i < e.MessageLimit; i++ {210 venom.Debug(ctx, "Reading message n° %d", i)211 var t string212 var m []byte213 select {214 case msg := <-ch:215 m = msg.Payload()216 t = msg.Topic()217 case <-ctx2.Done():218 break219 }220 messages = append(messages, m)221 topics = append(topics, t)222 s := string(m)223 venom.Debug(ctx, "message received. topic: %s len(%d), %s", t, len(m), s)224 var bodyJSONArray []interface{}225 if err := venom.JSONUnmarshal(m, &bodyJSONArray); err != nil {226 bodyJSONMap := map[string]interface{}{}227 err := venom.JSONUnmarshal(m, &bodyJSONMap)228 if err != nil {229 venom.Debug(ctx, "unable to decode message as json")230 }231 messagesJSON = append(messagesJSON, bodyJSONMap)232 } else {233 messagesJSON = append(messagesJSON, bodyJSONArray)234 }235 }236 d := time.Since(start)237 venom.Debug(ctx, "read(s) took %v msec", d.Milliseconds())238 return messages, messagesJSON, topics, nil239}240// persistMessages is a step that registers or un-registers persistent topic subscriptions against a given client id241func (e Executor) persistMessages(ctx context.Context) error {242 client, err := e.session(ctx, nil)243 if err != nil {244 venom.Debug(ctx, "Failed to create session (persistMessages)")245 return err246 }247 defer client.Disconnect(disconnectTimeoutMs)248 for _, topic := range e.Topics {249 token := client.Subscribe(topic, e.QOS, func(client mq.Client, message mq.Message) {250 venom.Debug(ctx, "msg received in persist request: %v", string(message.Payload()))251 })252 select {253 case <-token.Done():254 if token.Error() != nil {255 venom.Debug(ctx, "Failed to subscribe")256 return errors.Wrapf(token.Error(), "failed to subscribe to topic %v", topic)257 }258 // else subscription complete, all good.259 case <-time.After(time.Duration(e.Timeout) * time.Millisecond):260 venom.Debug(ctx, "Subscription attempt timed out")261 return errors.Errorf("Subscription attempt timed out on topic %v", topic)262 case <-ctx.Done():263 venom.Debug(ctx, "Context requested cancellation")264 return errors.New("Context requested cancellation")265 }266 }267 return nil268}269// newSubscriber is a topic subscription handler that forwards onto the passed channel270func newSubscriber(ctx context.Context, ch chan mq.Message) func(client mq.Client, message mq.Message) {271 return func(client mq.Client, message mq.Message) {272 t := message.Topic()273 m := message.Payload()...

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rpc-msf.go

Source:rpc-msf.go Github

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...52 Encoder: "raw",53 Data: rawPayload,54 RWXPages: true,55 })56 timeout := rpc.getTimeout(req)57 _, err = session.Request(sliverpb.MsgTaskReq, timeout, data)58 if err != nil {59 return nil, err60 }61 return &commonpb.Empty{}, nil62}63// MsfRemote - Inject an MSF payload into a remote process64func (rpc *Server) MsfRemote(ctx context.Context, req *clientpb.MSFRemoteReq) (*commonpb.Empty, error) {65 session := core.Sessions.Get(req.Request.SessionID)66 if session == nil {67 return nil, ErrInvalidSessionID68 }69 config := msf.VenomConfig{70 Os: session.Os,71 Arch: msf.Arch(session.Arch),72 Payload: req.Payload,73 LHost: req.LHost,74 LPort: uint16(req.LPort),75 Encoder: req.Encoder,76 Iterations: int(req.Iterations),77 Format: "raw",78 }79 rawPayload, err := msf.VenomPayload(config)80 if err != nil {81 return nil, err82 }83 data, _ := proto.Marshal(&sliverpb.TaskReq{84 Pid: req.PID,85 Encoder: "raw",86 Data: rawPayload,87 RWXPages: true,88 })89 timeout := rpc.getTimeout(req)90 _, err = session.Request(sliverpb.MsgTaskReq, timeout, data)91 if err != nil {92 return nil, err93 }94 return &commonpb.Empty{}, nil95}96// MsfStage - Generate a MSF compatible stage97func (rpc *Server) MsfStage(ctx context.Context, req *clientpb.MsfStagerReq) (*clientpb.MsfStager, error) {98 var (99 MSFStage = &clientpb.MsfStager{100 File: &commonpb.File{},101 }102 payload string103 arch string...

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Timeout

Using AI Code Generation

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1import "fmt"2import "time"3func main() {4c1 := make(chan string, 1)5go func() {6time.Sleep(time.Second * 2)7}()8select {9fmt.Println(res)10case <-time.After(time.Second * 1):11fmt.Println("timeout 1")12}13c2 := make(chan string, 1)14go func() {15time.Sleep(time.Second * 2)16}()17select {18fmt.Println(res)19case <-time.After(time.Second * 3):20fmt.Println("timeout 2")21}22}

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Timeout

Using AI Code Generation

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1import (2func main() {3 c1 := make(chan string, 1)4 go func() {5 time.Sleep(time.Second * 2)6 }()7 select {8 fmt.Println(res)9 case <-time.After(time.Second * 1):10 fmt.Println("timeout 1")11 }12 c2 := make(chan string, 1)13 go func() {14 time.Sleep(time.Second * 2)15 }()16 select {17 fmt.Println(res)18 case <-time.After(time.Second * 3):19 fmt.Println("timeout 2")20 }21}22import (23func main() {24 c1 := make(chan string, 1)25 go func() {26 time.Sleep(time.Second * 2)27 }()28 select {29 fmt.Println(res)30 case <-time.After(time.Second * 1):31 fmt.Println("timeout 1")32 }33 c2 := make(chan string, 1)34 go func() {35 time.Sleep(time.Second * 2)36 }()37 select {38 fmt.Println(res)39 case <-time.After(time.Second * 3):40 fmt.Println("timeout 2")41 }42}43import (44func main() {45 ticker := time.NewTicker(time.Millisecond * 500)46 go func() {47 for t := range ticker.C {48 fmt.Println("Tick at", t

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Timeout

Using AI Code Generation

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1import (2func main() {3 c1 := make(chan string, 1)4 go func() {5 time.Sleep(time.Second * 2)6 }()7 select {8 fmt.Println(res)9 case <-time.After(time.Second * 1):10 fmt.Println("timeout 1")11 }12 c2 := make(chan string, 1)13 go func() {14 time.Sleep(time.Second * 2)15 }()16 select {17 fmt.Println(res)18 case <-time.After(time.Second * 3):19 fmt.Println("timeout 2")20 }21}22import "time"23import "fmt"24func main() {25 c1 := make(chan string, 1)26 go func() {27 time.Sleep(time.Second * 2)28 }()29 select {30 fmt.Println(res)31 case <-time.After(time.Second * 2):32 fmt.Println("timeout 1")33 }34 c2 := make(chan string, 1)35 go func() {36 time.Sleep(time.Second * 2)37 }()38 select {39 fmt.Println(res)40 case <-time.After(time.Second * 3):41 fmt.Println("timeout 2")42 }43}44Non-blocking channel operations are important to prevent goroutine deadlock. We saw this for example with worker pools. There we used non-blocking sends to

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Timeout

Using AI Code Generation

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1import (2func main() {3 c := make(chan string, 1)4 go func() {5 time.Sleep(4 * time.Second)6 }()7 select {8 fmt.Println(res)9 case <-time.After(2 * time.Second):10 fmt.Println("timeout 1")11 }12 c2 := make(chan string, 1)13 go func() {14 time.Sleep(2 * time.Second)15 }()16 select {17 fmt.Println(res)18 case <-time.After(4 * time.Second):19 fmt.Println("timeout 2")20 }21}22import (23func main() {24 c1 := make(chan string, 1)25 go func() {26 time.Sleep(2 * time.Second)27 }()28 select {29 fmt.Println(res)30 case <-time.After(3 * time.Second):31 fmt.Println("timeout 1")32 }33 c2 := make(chan string, 1)34 go func() {35 time.Sleep(2 * time.Second)36 }()37 select {38 fmt.Println(res)39 case <-time.After(1 * time.Second):40 fmt.Println("timeout 2")41 }42}

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Timeout

Using AI Code Generation

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1import (2func main() {3 c := make(chan string, 1)4 go func() {5 time.Sleep(2 * time.Second)6 }()7 select {8 fmt.Println(res)9 case <-time.After(1 * time.Second):10 fmt.Println("timeout 1")11 }12}13func main() {14 c := make(chan string, 1)15 go func() {16 time.Sleep(2 * time.Second)17 }()18 select {19 fmt.Println(res)20 case <-time.After(3 * time.Second):21 fmt.Println("timeout 2")22 }23}24import (25func main() {26 c1 := make(chan string, 1)27 c2 := make(chan string, 1)28 go func() {29 time.Sleep(1 * time.Second)30 }()31 go func() {32 time.Sleep(2 * time.Second)33 }()34 for i := 0; i < 2; i++ {35 select {36 fmt.Println(res)37 fmt.Println(res)38 }39 }40}41import (42func main() {43 c1 := make(chan string, 1)44 c2 := make(chan string, 1)45 go func() {46 time.Sleep(1 * time.Second)47 }()48 go func() {49 time.Sleep(2 * time.Second)50 }()51 for i := 0; i < 2; i++ {52 select {53 fmt.Println(res)54 fmt.Println(res)55 case <-time.After(3 * time.Second):56 fmt.Println("timeout")57 }58 }59}

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Timeout

Using AI Code Generation

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1import (2func main() {3 ch := make(chan int)4 go func() {5 time.Sleep(3 * time.Second)6 }()7 select {8 fmt.Println("received")9 case <-time.After(2 * time.Second):10 fmt.Println("timeout")11 }12}

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Timeout

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello World")4 c1 := make(chan string, 1)5 go func() {6 time.Sleep(time.Second * 2)7 }()8 select {9 fmt.Println(res)10 case <-time.After(time.Second * 1):11 fmt.Println("timeout 1")12 }13 c2 := make(chan string, 1)14 go func() {15 time.Sleep(time.Second * 2)16 }()17 select {18 fmt.Println(res)19 case <-time.After(time.Second * 3):20 fmt.Println("timeout 2")21 }22}

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Timeout

Using AI Code Generation

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1import (2type Venom struct {3}4func (v Venom) Timeout() {5 time.Sleep(5 * time.Second)6 fmt.Println(v.Name, "is", v.Age, "years old")7}8func main() {9 v := Venom{"Venom", 5}10 go v.Timeout()11 time.Sleep(1 * time.Second)12 fmt.Println("Hello")13}14import (15type Venom struct {16}17func (v Venom) Timeout() {18 time.Sleep(5 * time.Second)19 fmt.Println(v.Name, "is", v.Age, "years old")20}21func main() {22 v := Venom{"Venom", 5}23 go v.Timeout()24 time.Sleep(10 * time.Second)25 fmt.Println("Hello")26}27import (28type Venom struct {29}30func (v Venom) Timeout() {31 time.Sleep(5 * time.Second)32 fmt.Println(v.Name, "is", v.Age, "years old")33}34func main() {35 v := Venom{"Venom", 5}36 go v.Timeout()37 time.Sleep(1 * time.Second)38 fmt.Println("Hello")39 time.Sleep(10 * time.Second)40 fmt.Println("Hello")41}42import (43type Venom struct {44}45func (v Venom) Timeout() {46 time.Sleep(5 * time.Second)47 fmt.Println(v.Name, "is", v.Age, "years old")48}49func main() {50 v := Venom{"Venom", 5}51 go v.Timeout()52 time.Sleep(1 * time.Second)

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Timeout

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1import (2func main() {3 fmt.Println("Hello, playground")4 var c = make(chan int)5 go func() {6 time.Sleep(10 * time.Second)7 }()8 select {9 fmt.Println(res)10 case <-time.After(5 * time.Second):11 fmt.Println("timeout")12 }13}14import (15func main() {16 fmt.Println("Hello, playground")17 var c = make(chan int)18 go func() {19 time.Sleep(10 * time.Second)20 }()21 select {22 fmt.Println(res)23 case <-time.After(5 * time.Second):24 fmt.Println("timeout")25 }26}27import (28func main() {29 fmt.Println("Hello, playground")30 var c = make(chan int)31 go func() {32 time.Sleep(10 * time.Second)33 }()34 select {35 fmt.Println(res)36 case <-time.After(5 * time.Second):37 fmt.Println("timeout")38 }39}40import (41func main() {42 fmt.Println("Hello, playground")43 var c = make(chan int)44 go func() {45 time.Sleep(10 * time.Second)46 }()47 select {48 fmt.Println(res)49 case <-time.After(5 * time.Second):50 fmt.Println("timeout")51 }52}53import (54func main() {55 fmt.Println("Hello, playground")56 var c = make(chan int)57 go func() {58 time.Sleep(10 * time.Second)59 }()60 select {61 fmt.Println(res)62 case <-time.After(5 * time.Second):63 fmt.Println("timeout")64 }65}

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Timeout

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1import (2func main() {3 v := venom.New()4 v.Timeout(time.Second)5 _, err := v.Run("sleep 2")6 if err == venom.ErrTimeout {7 fmt.Println("Command timed out")8 }9}10import (11func main() {12 v := venom.New()13 v.Timeout(time.Second)14 _, err := v.Run("sleep 2")15 if err == venom.ErrTimeout {16 fmt.Println("Command timed out")17 }18}19import (20func main() {21 v := venom.New()22 v.Timeout(time.Second)23 _, err := v.Run("sleep 2")24 if err == venom.ErrTimeout {25 fmt.Println("Command timed out")26 }27}28import (29func main() {30 v := venom.New()31 v.Timeout(time.Second)32 _, err := v.Run("sleep 2")33 if err == venom.ErrTimeout {34 fmt.Println("Command timed out")35 }36}37import (

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