From 7dba81efb5f4a4a583a39040ad079f0be0b57d30 Mon Sep 17 00:00:00 2001
From: Joseph Lewis III <joseph@josephlewis.net>
Date: Wed, 11 Dec 2024 20:31:50 -0800
Subject: [PATCH 1/3] Started adding session termination event #39

---
 cmd/playground.go          |   3 +-
 core/honeypot.go           |  19 ++-
 core/logger/log.pb.go      | 332 ++++++++++++++++++++++++-------------
 core/logger/log.pb.json.go |  16 ++
 core/logger/log.proto      |  13 ++
 core/logger/report.go      |   8 +
 core/vos/io.go             |  41 +++++
 7 files changed, 316 insertions(+), 116 deletions(-)

diff --git a/cmd/playground.go b/cmd/playground.go
index 4710640..4b730f5 100644
--- a/cmd/playground.go
+++ b/cmd/playground.go
@@ -3,7 +3,6 @@ package cmd
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net"
 	"os"
@@ -72,7 +71,7 @@ var playgroundCmd = &cobra.Command{
 	RunE: func(cmd *cobra.Command, args []string) error {
 		cmd.SilenceUsage = true
 
-		dir, err := ioutil.TempDir("", "playground")
+		dir, err := os.MkdirTemp("", "playground")
 		if err != nil {
 			return err
 		}
diff --git a/core/honeypot.go b/core/honeypot.go
index 48c247f..2d7a6d4 100644
--- a/core/honeypot.go
+++ b/core/honeypot.go
@@ -148,7 +148,8 @@ func (h *Honeypot) Close() error {
 }
 
 func (h *Honeypot) HandleConnection(s ssh.Session) error {
-	sessionID := fmt.Sprintf("%d", time.Now().UnixNano())
+	sessionStartTime := time.Now()
+	sessionID := fmt.Sprintf("%d", sessionStartTime.UnixNano())
 	sessionLogger := h.logger.NewSession(sessionID)
 
 	// Log panics to prevent a single connection from bringing down the whole
@@ -194,7 +195,21 @@ func (h *Honeypot) HandleConnection(s ssh.Session) error {
 	defer logFd.Close()
 
 	// Start logging the terminal interactions
-	vio := ttylog.NewRecorder(vos.NewVIOAdapter(s, s, s), ttylog.NewAsciicastLogSink(logFd))
+	readCounter := vos.NewCounter(s, func(b byte) bool {
+		return b == 127 || // Delete
+			b == 8 // Backspace
+	})
+	vio := ttylog.NewRecorder(vos.NewVIOAdapter(readCounter, s, s), ttylog.NewAsciicastLogSink(logFd))
+
+	defer func() {
+		sessionLogger.Record(&logger.LogEntry_SessionEnded{
+			SessionEnded: &logger.SessionEnded{
+				DurationMs:         time.Since(sessionStartTime).Milliseconds(),
+				HumanKeypressCount: int64(readCounter.MatchedTotal),
+				StdinByteCount:     int64(readCounter.Total),
+			},
+		})
+	}()
 
 	procName := h.configuration.OS.DefaultShell
 	procArgs := []string{procName}
diff --git a/core/logger/log.pb.go b/core/logger/log.pb.go
index 7aa1432..7085108 100644
--- a/core/logger/log.pb.go
+++ b/core/logger/log.pb.go
@@ -194,6 +194,7 @@ type LogEntry struct {
 	//	*LogEntry_Download
 	//	*LogEntry_Panic
 	//	*LogEntry_HoneypotEvent
+	//	*LogEntry_SessionEnded
 	LogType isLogEntry_LogType `protobuf_oneof:"log_type"`
 }
 
@@ -341,6 +342,13 @@ func (x *LogEntry) GetHoneypotEvent() *HoneypotEvent {
 	return nil
 }
 
+func (x *LogEntry) GetSessionEnded() *SessionEnded {
+	if x, ok := x.GetLogType().(*LogEntry_SessionEnded); ok {
+		return x.SessionEnded
+	}
+	return nil
+}
+
 type isLogEntry_LogType interface {
 	isLogEntry_LogType()
 }
@@ -398,6 +406,10 @@ type LogEntry_HoneypotEvent struct {
 	HoneypotEvent *HoneypotEvent `protobuf:"bytes,27,opt,name=honeypot_event,json=honeypotEvent,proto3,oneof"`
 }
 
+type LogEntry_SessionEnded struct {
+	SessionEnded *SessionEnded `protobuf:"bytes,28,opt,name=session_ended,json=sessionEnded,proto3,oneof"`
+}
+
 func (*LogEntry_LoginAttempt) isLogEntry_LogType() {}
 
 func (*LogEntry_FilesystemOperation) isLogEntry_LogType() {}
@@ -424,6 +436,8 @@ func (*LogEntry_Panic) isLogEntry_LogType() {}
 
 func (*LogEntry_HoneypotEvent) isLogEntry_LogType() {}
 
+func (*LogEntry_SessionEnded) isLogEntry_LogType() {}
+
 type FilesystemOp struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1255,10 +1269,77 @@ func (x *HoneypotEvent) GetEventType() HoneypotEvent_Type {
 	return HoneypotEvent_UNKNOWN
 }
 
+// Summary reported at the end of a session.
+type SessionEnded struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Session duration in milliseconds.
+	DurationMs int64 `protobuf:"varint,1,opt,name=duration_ms,json=durationMs,proto3" json:"duration_ms,omitempty"`
+	// Number of characters that looked "human" passed through stdin.
+	HumanKeypressCount int64 `protobuf:"varint,2,opt,name=human_keypress_count,json=humanKeypressCount,proto3" json:"human_keypress_count,omitempty"`
+	// Number of bytes written through stdin.
+	StdinByteCount int64 `protobuf:"varint,3,opt,name=stdin_byte_count,json=stdinByteCount,proto3" json:"stdin_byte_count,omitempty"`
+}
+
+func (x *SessionEnded) Reset() {
+	*x = SessionEnded{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_log_proto_msgTypes[14]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SessionEnded) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SessionEnded) ProtoMessage() {}
+
+func (x *SessionEnded) ProtoReflect() protoreflect.Message {
+	mi := &file_log_proto_msgTypes[14]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SessionEnded.ProtoReflect.Descriptor instead.
+func (*SessionEnded) Descriptor() ([]byte, []int) {
+	return file_log_proto_rawDescGZIP(), []int{14}
+}
+
+func (x *SessionEnded) GetDurationMs() int64 {
+	if x != nil {
+		return x.DurationMs
+	}
+	return 0
+}
+
+func (x *SessionEnded) GetHumanKeypressCount() int64 {
+	if x != nil {
+		return x.HumanKeypressCount
+	}
+	return 0
+}
+
+func (x *SessionEnded) GetStdinByteCount() int64 {
+	if x != nil {
+		return x.StdinByteCount
+	}
+	return 0
+}
+
 var File_log_proto protoreflect.FileDescriptor
 
 var file_log_proto_rawDesc = []byte{
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+	0x52, 0x0a, 0x70, 0x72, 0x69, 0x76, 0x61, 0x74, 0x65, 0x4b, 0x65, 0x79, 0x22, 0x50, 0x0a, 0x08,
+	0x44, 0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x16, 0x0a, 0x06,
+	0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x73, 0x6f,
+	0x75, 0x72, 0x63, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x18,
+	0x03, 0x20, 0x03, 0x28, 0x09, 0x52, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x22, 0x41,
+	0x0a, 0x05, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x12, 0x18, 0x0a, 0x07, 0x63, 0x6f, 0x6e, 0x74, 0x65,
+	0x78, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x78,
+	0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x73, 0x74, 0x61, 0x63, 0x6b, 0x74, 0x72, 0x61, 0x63, 0x65, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x73, 0x74, 0x61, 0x63, 0x6b, 0x74, 0x72, 0x61, 0x63,
+	0x65, 0x22, 0x72, 0x0a, 0x0d, 0x48, 0x6f, 0x6e, 0x65, 0x79, 0x70, 0x6f, 0x74, 0x45, 0x76, 0x65,
+	0x6e, 0x74, 0x12, 0x32, 0x0a, 0x0a, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x5f, 0x74, 0x79, 0x70, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x13, 0x2e, 0x48, 0x6f, 0x6e, 0x65, 0x79, 0x70, 0x6f,
+	0x74, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x2e, 0x54, 0x79, 0x70, 0x65, 0x52, 0x09, 0x65, 0x76, 0x65,
+	0x6e, 0x74, 0x54, 0x79, 0x70, 0x65, 0x22, 0x2d, 0x0a, 0x04, 0x54, 0x79, 0x70, 0x65, 0x12, 0x0b,
+	0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x09, 0x0a, 0x05, 0x53,
+	0x54, 0x41, 0x52, 0x54, 0x10, 0x01, 0x12, 0x0d, 0x0a, 0x09, 0x54, 0x45, 0x52, 0x4d, 0x49, 0x4e,
+	0x41, 0x54, 0x45, 0x10, 0x02, 0x22, 0x8b, 0x01, 0x0a, 0x0c, 0x53, 0x65, 0x73, 0x73, 0x69, 0x6f,
+	0x6e, 0x45, 0x6e, 0x64, 0x65, 0x64, 0x12, 0x1f, 0x0a, 0x0b, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x5f, 0x6d, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x0a, 0x64, 0x75, 0x72,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4d, 0x73, 0x12, 0x30, 0x0a, 0x14, 0x68, 0x75, 0x6d, 0x61, 0x6e,
+	0x5f, 0x6b, 0x65, 0x79, 0x70, 0x72, 0x65, 0x73, 0x73, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x12, 0x68, 0x75, 0x6d, 0x61, 0x6e, 0x4b, 0x65, 0x79, 0x70,
+	0x72, 0x65, 0x73, 0x73, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x28, 0x0a, 0x10, 0x73, 0x74, 0x64,
+	0x69, 0x6e, 0x5f, 0x62, 0x79, 0x74, 0x65, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x03, 0x52, 0x0e, 0x73, 0x74, 0x64, 0x69, 0x6e, 0x42, 0x79, 0x74, 0x65, 0x43, 0x6f,
+	0x75, 0x6e, 0x74, 0x2a, 0x38, 0x0a, 0x0f, 0x4f, 0x70, 0x65, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e,
+	0x52, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57,
+	0x4e, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07, 0x53, 0x55, 0x43, 0x43, 0x45, 0x53, 0x53, 0x10, 0x01,
+	0x12, 0x0b, 0x0a, 0x07, 0x46, 0x41, 0x49, 0x4c, 0x55, 0x52, 0x45, 0x10, 0x02, 0x42, 0x2f, 0x5a,
+	0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6a, 0x6f, 0x73, 0x65,
+	0x70, 0x68, 0x6c, 0x65, 0x77, 0x69, 0x73, 0x34, 0x32, 0x2f, 0x68, 0x6f, 0x6e, 0x65, 0x79, 0x73,
+	0x73, 0x68, 0x2f, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x6c, 0x6f, 0x67, 0x67, 0x65, 0x72, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1424,7 +1517,7 @@ func file_log_proto_rawDescGZIP() []byte {
 }
 
 var file_log_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
-var file_log_proto_msgTypes = make([]protoimpl.MessageInfo, 14)
+var file_log_proto_msgTypes = make([]protoimpl.MessageInfo, 15)
 var file_log_proto_goTypes = []interface{}{
 	(OperationResult)(0),                     // 0: OperationResult
 	(UnknownCommand_UnknownCommandStatus)(0), // 1: UnknownCommand.UnknownCommandStatus
@@ -1443,6 +1536,7 @@ var file_log_proto_goTypes = []interface{}{
 	(*Download)(nil),                         // 14: Download
 	(*Panic)(nil),                            // 15: Panic
 	(*HoneypotEvent)(nil),                    // 16: HoneypotEvent
+	(*SessionEnded)(nil),                     // 17: SessionEnded
 }
 var file_log_proto_depIdxs = []int32{
 	5,  // 0: LogEntry.login_attempt:type_name -> LoginAttempt
@@ -1458,14 +1552,15 @@ var file_log_proto_depIdxs = []int32{
 	14, // 10: LogEntry.download:type_name -> Download
 	15, // 11: LogEntry.panic:type_name -> Panic
 	16, // 12: LogEntry.honeypot_event:type_name -> HoneypotEvent
-	0,  // 13: LoginAttempt.result:type_name -> OperationResult
-	1,  // 14: UnknownCommand.status:type_name -> UnknownCommand.UnknownCommandStatus
-	2,  // 15: HoneypotEvent.event_type:type_name -> HoneypotEvent.Type
-	16, // [16:16] is the sub-list for method output_type
-	16, // [16:16] is the sub-list for method input_type
-	16, // [16:16] is the sub-list for extension type_name
-	16, // [16:16] is the sub-list for extension extendee
-	0,  // [0:16] is the sub-list for field type_name
+	17, // 13: LogEntry.session_ended:type_name -> SessionEnded
+	0,  // 14: LoginAttempt.result:type_name -> OperationResult
+	1,  // 15: UnknownCommand.status:type_name -> UnknownCommand.UnknownCommandStatus
+	2,  // 16: HoneypotEvent.event_type:type_name -> HoneypotEvent.Type
+	17, // [17:17] is the sub-list for method output_type
+	17, // [17:17] is the sub-list for method input_type
+	17, // [17:17] is the sub-list for extension type_name
+	17, // [17:17] is the sub-list for extension extendee
+	0,  // [0:17] is the sub-list for field type_name
 }
 
 func init() { file_log_proto_init() }
@@ -1642,6 +1737,18 @@ func file_log_proto_init() {
 				return nil
 			}
 		}
+		file_log_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SessionEnded); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	file_log_proto_msgTypes[0].OneofWrappers = []interface{}{
 		(*LogEntry_LoginAttempt)(nil),
@@ -1657,6 +1764,7 @@ func file_log_proto_init() {
 		(*LogEntry_Download)(nil),
 		(*LogEntry_Panic)(nil),
 		(*LogEntry_HoneypotEvent)(nil),
+		(*LogEntry_SessionEnded)(nil),
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -1664,7 +1772,7 @@ func file_log_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_log_proto_rawDesc,
 			NumEnums:      3,
-			NumMessages:   14,
+			NumMessages:   15,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/core/logger/log.pb.json.go b/core/logger/log.pb.json.go
index dfd16b1..9871f1c 100644
--- a/core/logger/log.pb.json.go
+++ b/core/logger/log.pb.json.go
@@ -230,3 +230,19 @@ func (msg *HoneypotEvent) UnmarshalJSON(b []byte) error {
 		DiscardUnknown: false,
 	}.Unmarshal(b, msg)
 }
+
+// MarshalJSON implements json.Marshaler
+func (msg *SessionEnded) MarshalJSON() ([]byte, error) {
+	return protojson.MarshalOptions{
+		UseEnumNumbers:  false,
+		EmitUnpopulated: false,
+		UseProtoNames:   false,
+	}.Marshal(msg)
+}
+
+// UnmarshalJSON implements json.Unmarshaler
+func (msg *SessionEnded) UnmarshalJSON(b []byte) error {
+	return protojson.UnmarshalOptions{
+		DiscardUnknown: false,
+	}.Unmarshal(b, msg)
+}
diff --git a/core/logger/log.proto b/core/logger/log.proto
index b9a53af..8ee608d 100644
--- a/core/logger/log.proto
+++ b/core/logger/log.proto
@@ -28,6 +28,7 @@ message LogEntry {
     Download download = 25;
     Panic panic = 26;
     HoneypotEvent honeypot_event = 27;
+    SessionEnded session_ended = 28;
   };
 }
 
@@ -163,3 +164,15 @@ message HoneypotEvent {
   // Context about what was going on before the panic.
   Type event_type = 1;
 }
+
+// Summary reported at the end of a session.
+message SessionEnded {
+  // Session duration in milliseconds.
+  int64 duration_ms = 1;
+
+  // Number of characters that looked "human" passed through stdin.
+  int64 human_keypress_count = 2;
+
+  // Number of bytes written through stdin.
+  int64 stdin_byte_count = 3;
+}
\ No newline at end of file
diff --git a/core/logger/report.go b/core/logger/report.go
index 742bfce..50c28d5 100644
--- a/core/logger/report.go
+++ b/core/logger/report.go
@@ -77,6 +77,10 @@ type InteractiveSession struct {
 	TerminalName string `json:"terminal_name"`
 	IsPty        bool   `json:"is_pty"`
 
+	DurationMs         int64 `json:"duration_ms,omitempty"`
+	HumanKeypressCount int64 `json:"human_keypress_count,omitempty"`
+	StdinByteCount     int64 `json:"stdin_byte_count,omitempty"`
+
 	Commands  []string `json:"commands"`
 	Downloads []string `json:"downloads"`
 }
@@ -101,6 +105,10 @@ func (i *InteractiveSession) Update(le *LogEntry) {
 		i.IsPty = event.TerminalUpdate.GetIsPty()
 	case *LogEntry_OpenTtyLog:
 		i.TTYLog = event.OpenTtyLog.GetName()
+	case *LogEntry_SessionEnded:
+		i.DurationMs = event.SessionEnded.DurationMs
+		i.HumanKeypressCount = event.SessionEnded.HumanKeypressCount
+		i.StdinByteCount = event.SessionEnded.StdinByteCount
 	}
 }
 
diff --git a/core/vos/io.go b/core/vos/io.go
index b42e46c..441807a 100644
--- a/core/vos/io.go
+++ b/core/vos/io.go
@@ -85,3 +85,44 @@ func (*devNull) Close() error {
 func (*devNull) Write(b []byte) (int, error) {
 	return len(b), nil
 }
+
+// Counter counts the number of matching and total bytes through a reader.
+type Counter struct {
+	test    func(byte) bool
+	wrapped io.ReadCloser
+
+	// Total number of bytes read.
+	Total int
+	// Total number of matched bytes.
+	MatchedTotal int
+}
+
+// NewCounter creates a new counter over the wrapped stream applying test to
+// each byte to update the TestTotal property.
+func NewCounter(wrapped io.ReadCloser, test func(byte) bool) *Counter {
+	return &Counter{
+		test:    test,
+		wrapped: wrapped,
+	}
+}
+
+var _ io.ReadCloser = (*Counter)(nil)
+
+// Read implements io.Reader.
+func (c *Counter) Read(data []byte) (int, error) {
+	cnt, err := c.wrapped.Read(data)
+	c.Total += cnt
+
+	for i := 0; i < cnt; i++ {
+		if c.test(data[i]) {
+			c.MatchedTotal++
+		}
+	}
+
+	return cnt, err
+}
+
+// Close implemnts io.Closer.
+func (c *Counter) Close() error {
+	return c.wrapped.Close()
+}

From ed60fefaaad7e89dec6c65642e0e24fa8aca5c10 Mon Sep 17 00:00:00 2001
From: Joseph Lewis III <joseph@josephlewis.net>
Date: Wed, 11 Dec 2024 21:45:22 -0800
Subject: [PATCH 2/3] Made playground use session

---
 cmd/playground.go         | 118 +++++++++++++++++++++++++-------------
 core/config/initialize.go |   2 +-
 core/honeypot.go          |  18 +++++-
 3 files changed, 96 insertions(+), 42 deletions(-)

diff --git a/cmd/playground.go b/cmd/playground.go
index 4b730f5..19f73ec 100644
--- a/cmd/playground.go
+++ b/cmd/playground.go
@@ -1,27 +1,37 @@
 package cmd
 
 import (
-	"fmt"
+	"context"
 	"io"
 	"log"
 	"net"
 	"os"
 	"path/filepath"
 	"strings"
-	"time"
 
-	"github.com/josephlewis42/honeyssh/commands"
+	"github.com/anmitsu/go-shlex"
+	"github.com/gliderlabs/ssh"
+	"github.com/josephlewis42/honeyssh/core"
 	"github.com/josephlewis42/honeyssh/core/config"
-	"github.com/josephlewis42/honeyssh/core/logger"
 	"github.com/josephlewis42/honeyssh/core/vos"
 	"github.com/spf13/cobra"
 )
 
 type playgroundSession struct {
-	user string
-	out  io.Writer
+	user       string
+	out        io.Writer
+	in         io.Reader
+	rawCommand string
+	subsystem  string
+	environ    []string
+	pty        ssh.Pty
+
+	exitCalled bool
+	exitCode   int
 }
 
+var _ core.SessionInfo = (*playgroundSession)(nil)
+
 func (p *playgroundSession) User() string {
 	return p.user
 }
@@ -31,7 +41,8 @@ func (p *playgroundSession) RemoteAddr() net.Addr {
 }
 
 func (p *playgroundSession) Exit(code int) error {
-	os.Exit(code)
+	p.exitCalled = true
+	p.exitCode = code
 	return nil
 }
 
@@ -39,6 +50,41 @@ func (p *playgroundSession) Write(b []byte) (int, error) {
 	return p.out.Write(b)
 }
 
+func (p *playgroundSession) Command() []string {
+	// Ignore the error, it doesn't matter for the playground.
+	cmd, _ := shlex.Split(p.rawCommand, true)
+	return cmd
+}
+
+func (p *playgroundSession) RawCommand() string {
+	return p.rawCommand
+}
+func (p *playgroundSession) Subsystem() string {
+	return p.subsystem
+}
+
+func (p *playgroundSession) Context() context.Context {
+	return context.Background()
+}
+
+func (p *playgroundSession) Environ() []string {
+	return p.environ
+}
+
+func (p *playgroundSession) Pty() (ssh.Pty, <-chan ssh.Window, bool) {
+	output := make(<-chan ssh.Window)
+	return p.pty, output, true
+}
+
+func (p *playgroundSession) Read(b []byte) (int, error) {
+	return p.in.Read(b)
+}
+
+func (p *playgroundSession) Close() error {
+	// Close does nothing in playground
+	return nil
+}
+
 type SSHSession interface {
 	User() string
 	RemoteAddr() net.Addr
@@ -87,48 +133,42 @@ var playgroundCmd = &cobra.Command{
 		// a real one -- it's surprisingly convincing.
 		cfg.Uname.Nodename = "playground🍯"
 
-		fs, err := vos.NewVFSFromConfig(cfg)
+		playgroundLogger.Printf("Logging to: file://%s\n", dir)
+		playgroundLogger.Printf("See logs with: tail -f %s\n", filepath.Join(dir, config.AppLogName))
+		playgroundLogger.Println(strings.Repeat("=", 80))
+
+		honeypot, err := core.NewHoneypot(cfg, io.Discard)
 		if err != nil {
 			return err
 		}
 
-		logFd, err := cfg.OpenAppLog()
-		if err != nil {
+		session := &playgroundSession{
+			out:        cmd.OutOrStdout(),
+			in:         cmd.InOrStdin(),
+			user:       "root",
+			rawCommand: "/bin/sh",
+			subsystem:  "",
+			environ:    []string{},
+			pty: ssh.Pty{
+				Term: "playground",
+				Window: ssh.Window{
+					Width:  80,
+					Height: 40,
+				},
+			},
+		}
+
+		if err := honeypot.HandleConnection(session); err != nil {
 			return err
 		}
-		defer logFd.Close()
-		logRecorder := logger.NewJsonLinesLogRecorder(logFd)
 
-		playgroundLogger.Printf("Logging to: file://%s\n", dir)
-		playgroundLogger.Printf("See logs with: tail -f %s\n", filepath.Join(dir, logFd.Name()))
 		playgroundLogger.Println(strings.Repeat("=", 80))
-
-		sharedOS := vos.NewSharedOS(fs, commands.BuiltinProcessResolver, cfg, time.Now)
-		tenantOS := vos.NewTenantOS(sharedOS, logRecorder.NewSession("playground"), &playgroundSession{
-			out:  cmd.OutOrStdout(),
-			user: "root",
-		})
-		// TODO: Connect to the real PTY
-		tenantOS.SetPTY(vos.PTY{
-			Width:  80,
-			Height: 40,
-			Term:   "playground",
-			IsPTY:  true,
-		})
-
-		initProc := tenantOS.LoginProc()
-
-		runner, err := initProc.StartProcess("/bin/sh", []string{}, &vos.ProcAttr{
-			Dir:   "/",
-			Env:   initProc.Environ(),
-			Files: &osVIO{},
-		})
-		if err != nil {
-			return err
+		if session.exitCalled {
+			playgroundLogger.Printf("Session ended, exit code: %d\n", session.exitCode)
+		} else {
+			playgroundLogger.Println("Session ended, exit not called")
 		}
 
-		exitCode := runner.Run()
-		fmt.Fprintf(cmd.OutOrStdout(), "Exit code: %d\n", exitCode)
 		return nil
 	},
 }
diff --git a/core/config/initialize.go b/core/config/initialize.go
index dc09a46..9c7880a 100644
--- a/core/config/initialize.go
+++ b/core/config/initialize.go
@@ -16,7 +16,7 @@ import (
 	"github.com/spf13/afero"
 )
 
-// Initialize creates the honeypot configuartion in the given directory.
+// Initialize creates the honeypot configuration in the given directory.
 func Initialize(path string, logger *log.Logger) (*Configuration, error) {
 	// Make sure path exists
 	full, err := filepath.Abs(path)
diff --git a/core/honeypot.go b/core/honeypot.go
index 2d7a6d4..0afee8d 100644
--- a/core/honeypot.go
+++ b/core/honeypot.go
@@ -147,7 +147,21 @@ func (h *Honeypot) Close() error {
 	return h.toClose.Close()
 }
 
-func (h *Honeypot) HandleConnection(s ssh.Session) error {
+// Minimal properties from ssh.Session needed for the honeypot.
+type SessionInfo interface {
+	Context() context.Context
+	Environ() []string
+	RawCommand() string
+	Subsystem() string
+	Command() []string
+	Pty() (ssh.Pty, <-chan ssh.Window, bool)
+	vos.SSHSession
+	io.ReadCloser
+}
+
+var _ SessionInfo = (ssh.Session)(nil)
+
+func (h *Honeypot) HandleConnection(s SessionInfo) error {
 	sessionStartTime := time.Now()
 	sessionID := fmt.Sprintf("%d", sessionStartTime.UnixNano())
 	sessionLogger := h.logger.NewSession(sessionID)
@@ -180,7 +194,7 @@ func (h *Honeypot) HandleConnection(s ssh.Session) error {
 		},
 	})
 
-	// Set up I/O and loging.
+	// Set up I/O and logging.
 	logFileName := fmt.Sprintf("%s.%s", time.Now().Format(time.RFC3339Nano), ttylog.AsciicastFileExt)
 	sessionLogger.Record(&logger.LogEntry_OpenTtyLog{
 		OpenTtyLog: &logger.OpenTTYLog{

From 1e742a3d0a3c4cee0e9ff501affeb232c3ab86f3 Mon Sep 17 00:00:00 2001
From: Joseph Lewis III <joseph@josephlewis.net>
Date: Wed, 11 Dec 2024 21:55:18 -0800
Subject: [PATCH 3/3] Ran gofmt

---
 cmd/builtins.go      | 2 +-
 cmd/init.go          | 2 +-
 cmd/root.go          | 2 +-
 cmd/serve.go         | 2 +-
 commands/env_test.go | 2 +-
 core/vos/fs.go       | 2 +-
 core/vos/fs_test.go  | 2 +-
 core/vos/sharedos.go | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/cmd/builtins.go b/cmd/builtins.go
index 13e7c49..4119f99 100644
--- a/cmd/builtins.go
+++ b/cmd/builtins.go
@@ -5,8 +5,8 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/spf13/cobra"
 	"github.com/josephlewis42/honeyssh/commands"
+	"github.com/spf13/cobra"
 )
 
 // serveCmd represents the serve command
diff --git a/cmd/init.go b/cmd/init.go
index 32d7e4e..1a48737 100644
--- a/cmd/init.go
+++ b/cmd/init.go
@@ -3,8 +3,8 @@ package cmd
 import (
 	"log"
 
-	"github.com/spf13/cobra"
 	"github.com/josephlewis42/honeyssh/core/config"
+	"github.com/spf13/cobra"
 )
 
 // initCmd intializes the honeypot configuration
diff --git a/cmd/root.go b/cmd/root.go
index b2c092a..1a493fb 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -5,8 +5,8 @@ import (
 	"io/fs"
 	"log"
 
-	"github.com/spf13/cobra"
 	"github.com/josephlewis42/honeyssh/core/config"
+	"github.com/spf13/cobra"
 )
 
 var cfgPath string
diff --git a/cmd/serve.go b/cmd/serve.go
index f798fd8..68e4f1e 100644
--- a/cmd/serve.go
+++ b/cmd/serve.go
@@ -8,8 +8,8 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/spf13/cobra"
 	"github.com/josephlewis42/honeyssh/core"
+	"github.com/spf13/cobra"
 )
 
 // serveCmd represents the serve command
diff --git a/commands/env_test.go b/commands/env_test.go
index 6c496e8..c86ea60 100644
--- a/commands/env_test.go
+++ b/commands/env_test.go
@@ -3,8 +3,8 @@ package commands
 import (
 	"testing"
 
-	"github.com/stretchr/testify/assert"
 	"github.com/josephlewis42/honeyssh/core/vos/vostest"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestEnv(t *testing.T) {
diff --git a/core/vos/fs.go b/core/vos/fs.go
index 732e54e..f910457 100644
--- a/core/vos/fs.go
+++ b/core/vos/fs.go
@@ -12,11 +12,11 @@ import (
 	"strings"
 	"time"
 
-	"github.com/spf13/afero"
 	"github.com/josephlewis42/honeyssh/core/config"
 	"github.com/josephlewis42/honeyssh/third_party/cowfs"
 	"github.com/josephlewis42/honeyssh/third_party/memmapfs"
 	"github.com/josephlewis42/honeyssh/third_party/realpath"
+	"github.com/spf13/afero"
 )
 
 func NewVFSFromConfig(configuration *config.Configuration) (VFS, error) {
diff --git a/core/vos/fs_test.go b/core/vos/fs_test.go
index 8208711..369fd81 100644
--- a/core/vos/fs_test.go
+++ b/core/vos/fs_test.go
@@ -7,9 +7,9 @@ import (
 	"testing"
 	"time"
 
+	"github.com/josephlewis42/honeyssh/third_party/memmapfs"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
-	"github.com/josephlewis42/honeyssh/third_party/memmapfs"
 )
 
 func FSTestCase(t *testing.T, suite FSTestSuite, testPath string) *FSTestCaseSetup {
diff --git a/core/vos/sharedos.go b/core/vos/sharedos.go
index 05fce0b..a1c304d 100644
--- a/core/vos/sharedos.go
+++ b/core/vos/sharedos.go
@@ -4,8 +4,8 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/spf13/afero"
 	"github.com/josephlewis42/honeyssh/core/config"
+	"github.com/spf13/afero"
 )
 
 // ProcessFunc is a "process" that can be run.