Update

.github/workflows/pr-check.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: golangci/golangci-lint-action@v3
+      - uses: golangci/golangci-lint-action@v6
   test:
     name: Test
     strategy:
@@ -21,7 +21,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@v5
         with:
-          go-version: ^1.18
+          go-version: ^1.22
       - run: go test -race -timeout 1m

.github/workflows/release.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@v5
         with:
-          go-version: "^1.18"
+          go-version: "^1.22"
       - run: go build -o sshesame-linux-amd64
         env:
           GOOS: linux

config.go

@@ -11,7 +11,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"path"
@@ -148,14 +147,14 @@ func generateKey(dataDir string, signature keySignature) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	if err := ioutil.WriteFile(keyFile, pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: keyBytes}), 0600); err != nil {
+	if err := os.WriteFile(keyFile, pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: keyBytes}), 0600); err != nil {
 		return "", err
 	}
 	return keyFile, nil
 }
 
 func loadKey(keyFile string) (ssh.Signer, error) {
-	keyBytes, err := ioutil.ReadFile(keyFile)
+	keyBytes, err := os.ReadFile(keyFile)
 	if err != nil {
 		return nil, err
 	}

config_test.go

@@ -3,8 +3,8 @@ package main
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"log"
+	"os"
 	"path"
 	"reflect"
 	"testing"
@@ -114,7 +114,7 @@ func verifyConfig(t *testing.T, cfg *config, expected *config) {
 }
 
 func verifyDefaultKeys(t *testing.T, dataDir string) {
-	files, err := ioutil.ReadDir(dataDir)
+	files, err := os.ReadDir(dataDir)
 	if err != nil {
 		t.Fatalf("Faield to list directory: %v", err)
 	}
@@ -125,7 +125,7 @@ func verifyDefaultKeys(t *testing.T, dataDir string) {
 	}
 	keys := map[string]string{}
 	for _, file := range files {
-		keyBytes, err := ioutil.ReadFile(path.Join(dataDir, file.Name()))
+		keyBytes, err := os.ReadFile(path.Join(dataDir, file.Name()))
 		if err != nil {
 			t.Fatalf("Failed to read key: %v", err)
 		}
@@ -281,7 +281,7 @@ server:
 	expectedConfig.SSHProto.Version = "SSH-2.0-sshesame"
 	expectedConfig.SSHProto.Banner = "This is an SSH honeypot. Everything is logged and monitored."
 	verifyConfig(t, cfg, expectedConfig)
-	files, err := ioutil.ReadDir(dataDir)
+	files, err := os.ReadDir(dataDir)
 	if err != nil {
 		t.Fatalf("Failed to read directory: %v", err)
 	}
@@ -316,7 +316,7 @@ func TestLogReloadSameFile(t *testing.T) {
 	if err := cfg.logFileHandle.Close(); err != nil {
 		t.Fatalf("Failed to close log file: %v", err)
 	}
-	logs, err := ioutil.ReadFile(cfg.Logging.File)
+	logs, err := os.ReadFile(cfg.Logging.File)
 	if err != nil {
 		t.Fatalf("Failed to read log file: %v", err)
 	}
@@ -344,15 +344,15 @@ func TestLogReloadDifferentFile(t *testing.T) {
 	if err := cfg.logFileHandle.Close(); err != nil {
 		t.Fatalf("Failed to close log file: %v", err)
 	}
-	logs1, err := ioutil.ReadFile(logFile1)
+	logs1, err := os.ReadFile(logFile1)
 	if err != nil {
 		t.Fatalf("Failed to read log file: %v", err)
 	}
 	expectedLogs1 := "test1\n"
 	if string(logs1) != expectedLogs1 {
 		t.Errorf("logs1=%v, want %v", string(logs1), expectedLogs1)
 	}
-	logs2, err := ioutil.ReadFile(logFile2)
+	logs2, err := os.ReadFile(logFile2)
 	if err != nil {
 		t.Fatalf("Failed to read log file: %v", err)
 	}
@@ -368,15 +368,15 @@ func TestExistingKey(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Failed to generate key: %v", err)
 	}
-	oldKey, err := ioutil.ReadFile(oldKeyFile)
+	oldKey, err := os.ReadFile(oldKeyFile)
 	if err != nil {
 		t.Fatalf("Failed to read key: %v", err)
 	}
 	newKeyFile, err := generateKey(dataDir, ed25519_key)
 	if err != nil {
 		t.Fatalf("Failed to generate key: %v", err)
 	}
-	newKey, err := ioutil.ReadFile(newKeyFile)
+	newKey, err := os.ReadFile(newKeyFile)
 	if err != nil {
 		t.Fatalf("Failed to read key: %v", err)
 	}
@@ -386,7 +386,7 @@ func TestExistingKey(t *testing.T) {
 }
 
 func TestDefaultConfigFile(t *testing.T) {
-	configBytes, err := ioutil.ReadFile("sshesame.yaml")
+	configBytes, err := os.ReadFile("sshesame.yaml")
 	if err != nil {
 		t.Fatalf("Failed to read config file: %v", err)
 	}

go.mod

@@ -1,10 +1,10 @@
 module github.com/jaksi/sshesame
 
-go 1.18
+go 1.22
 
 require (
 	github.com/adrg/xdg v0.5.0
-	github.com/jaksi/sshutils v0.0.11
+	github.com/jaksi/sshutils v0.0.13
 	github.com/prometheus/client_golang v1.19.1
 	golang.org/x/crypto v0.25.0
 	golang.org/x/term v0.22.0

go.sum

@@ -6,13 +6,17 @@ github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/jaksi/sshutils v0.0.11 h1:MNFPPHkDD+FQJl+SPTL1U8LQ9AJrx87lArEyR35yvsk=
-github.com/jaksi/sshutils v0.0.11/go.mod h1:H1/OsmZrqUwTydEeQVT4cTMXO7IDUDb2ClYvGQNg5Ss=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/jaksi/sshutils v0.0.13 h1:0XKYoXU4xzeur8q5uCAerjkcLh9DaEe9OQOhVKuSSJ0=
+github.com/jaksi/sshutils v0.0.13/go.mod h1:H1/OsmZrqUwTydEeQVT4cTMXO7IDUDb2ClYvGQNg5Ss=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v1.19.1 h1:wZWJDwK+NameRJuPGDhlnFgx8e8HN3XHQeLaYJFJBOE=
 github.com/prometheus/client_golang v1.19.1/go.mod h1:mP78NwGzrVks5S2H6ab8+ZZGJLZUq1hoULYBAYBw1Ho=
 github.com/prometheus/client_model v0.5.0 h1:VQw1hfvPvk3Uv6Qf29VrPF32JB6rtbgI6cYPYQjL0Qw=
@@ -22,7 +26,9 @@ github.com/prometheus/common v0.48.0/go.mod h1:0/KsvlIEfPQCQ5I2iNSAWKPZziNCvRs5E
 github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k6Bo=
 github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 golang.org/x/crypto v0.25.0 h1:ypSNr+bnYL2YhwoMt2zPxHFmbAN1KZs/njMG3hxUp30=
 golang.org/x/crypto v0.25.0/go.mod h1:T+wALwcMOSE0kXgUAnPAHqTLW+XHgcELELW8VaDgm/M=
 golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
@@ -33,6 +39,8 @@ google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGm
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"flag"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
@@ -35,7 +34,7 @@ func main() {
 	cfg := &config{}
 	configString := ""
 	if *configFile != "" {
-		configBytes, err := ioutil.ReadFile(*configFile)
+		configBytes, err := os.ReadFile(*configFile)
 		if err != nil {
 			errorLogger.Fatalf("Failed to read config file: %v", err)
 		}
@@ -50,7 +49,7 @@ func main() {
 	go func() {
 		for signal := range reloadSignals {
 			infoLogger.Printf("Reloading config due to %s", signal)
-			configBytes, err := ioutil.ReadFile(*configFile)
+			configBytes, err := os.ReadFile(*configFile)
 			if err != nil {
 				warningLogger.Printf("Failed to read config file: %v", err)
 			}

replay_test.go

@@ -5,8 +5,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
+	"os"
 	"path"
 	"path/filepath"
 	"reflect"
@@ -520,7 +520,7 @@ func TestReplay(t *testing.T) {
 			}
 			t.Run(testName, func(t *testing.T) {
 				logBuffer := setupLogBuffer(t, cfg)
-				testCaseBytes, err := ioutil.ReadFile(testFile)
+				testCaseBytes, err := os.ReadFile(testFile)
 				if err != nil {
 					t.Fatal(err)
 				}

testproxy/main.go

@@ -6,8 +6,8 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
+	"os"
 
 	"golang.org/x/crypto/ssh"
 )
@@ -479,7 +479,7 @@ func main() {
 		NoClientAuth:  true,
 		ServerVersion: "SSH-2.0-OpenSSH_7.2",
 	}
-	hostKeyBytes, err := ioutil.ReadFile(*hostKeyFile)
+	hostKeyBytes, err := os.ReadFile(*hostKeyFile)
 	if err != nil {
 		panic(err)
 	}
@@ -489,7 +489,7 @@ func main() {
 	}
 	serverConfig.AddHostKey(hostKey)
 
-	clientKeyBytes, err := ioutil.ReadFile(*clientKeyFile)
+	clientKeyBytes, err := os.ReadFile(*clientKeyFile)
 	if err != nil {
 		panic(err)
 	}

testutils.go

@@ -2,8 +2,8 @@ package main
 
 import (
 	"bytes"
-	"io/ioutil"
 	"log"
+	"os"
 	"path/filepath"
 	"testing"
 )
@@ -75,7 +75,7 @@ func writeTestKeys(t *testing.T, dataDir string) {
 		"host_ecdsa_key":   testECDSAKey,
 		"host_ed25519_key": testEd25519Key,
 	} {
-		if err := ioutil.WriteFile(filepath.Join(dataDir, fileName), []byte(content), 0600); err != nil {
+		if err := os.WriteFile(filepath.Join(dataDir, fileName), []byte(content), 0600); err != nil {
 			t.Fatal(err)
 		}
 	}