commit 51141d860c7f45c6d4b18571ace600094d648e1c
Author: licsber <admin@licsber.site>
Date:   Wed Jan 22 11:28:06 2025 +0800

    init commit.

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..da8b189
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,3 @@
+.git/
+docker-compose.yaml
+README.md
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c65ee56
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+sqlite.db
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..8be5ccb
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM golang:alpine AS builder
+WORKDIR /licsber
+COPY . .
+RUN go env -w GOPROXY=https://goproxy.cn,direct
+RUN go build -ldflags="-w -s" .
+
+FROM scratch
+COPY --from=builder /licsber/myfakessh /licsber/myfakessh
+EXPOSE 22
+ENTRYPOINT ["/licsber/myfakessh"]
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f2aab13
--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+# MyFakeSSH
+
+```bash
+go mod init myfakessh
+go mod tidy
+```
+
+## 参考
+
+https://github.com/fffaraz/fakessh
diff --git a/db.go b/db.go
new file mode 100644
index 0000000..451ca9b
--- /dev/null
+++ b/db.go
@@ -0,0 +1,79 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"net"
+	"strconv"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+	_ "modernc.org/sqlite"
+)
+
+var (
+	db     *sql.DB
+	dbPath = "./sqlite.db"
+)
+
+func initDB() {
+	_db, err := sql.Open("sqlite", dbPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+	db = _db
+
+	createTableSQL := `
+    CREATE TABLE IF NOT EXISTS connect_attempts (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        time TEXT NOT NULL,
+        ip TEXT NOT NULL,
+        port INTEGER NOT NULL
+    );
+    CREATE TABLE IF NOT EXISTS login_attempts (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        time TEXT NOT NULL,
+        ip TEXT NOT NULL,
+        port INTEGER NOT NULL,
+        client_version TEXT NOT NULL,
+        username TEXT NOT NULL,
+        password TEXT NOT NULL
+    );`
+	_, err = db.Exec(createTableSQL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println("Table created successfully")
+}
+
+func logConnect(conn net.Conn) {
+	currentTime := time.Now().Format("2006-01-02 15:04:05")
+	remoteAddr := conn.RemoteAddr().String()
+	host, port, _ := net.SplitHostPort(remoteAddr)
+	portInt, _ := strconv.Atoi(port)
+
+	insertSQL := `INSERT INTO connect_attempts (time, ip, port) VALUES (?, ?, ?)`
+	_, err := db.Exec(insertSQL, currentTime, host, portInt)
+	if err != nil {
+		log.Println("Failed to insert connect attempt:", err)
+		return
+	}
+}
+
+func logLogin(conn ssh.ConnMetadata, password []byte) {
+	currentTime := time.Now().Format("2006-01-02 15:04:05")
+	remoteAddr := conn.RemoteAddr().String()
+	host, port, _ := net.SplitHostPort(remoteAddr)
+	portInt, _ := strconv.Atoi(port)
+	clientVersion := string(conn.ClientVersion())
+	username := conn.User()
+	passwordStr := string(password)
+
+	insertSQL := `INSERT INTO login_attempts (time, ip, port, client_version, username, password) VALUES (?, ?, ?, ?, ?, ?)`
+	_, err := db.Exec(insertSQL, currentTime, host, portInt, clientVersion, username, passwordStr)
+	if err != nil {
+		log.Fatal("Failed to insert login attempt:", err)
+		return
+	}
+}
diff --git a/docker-compose.yaml b/docker-compose.yaml
new file mode 100644
index 0000000..67c3850
--- /dev/null
+++ b/docker-compose.yaml
@@ -0,0 +1,13 @@
+services:
+  MyFakeSSH:
+    build: .
+    image: licsber/myfakessh:latest
+    restart: always
+    container_name: myfakessh
+    command: /log
+    volumes:
+      - /licsber/docker/myfakessh:/log
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
+    ports:
+      - '22:22'
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..889b1b7
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,20 @@
+module git.licsber.site/go/myfakessh
+
+go 1.23
+
+require (
+	golang.org/x/crypto v0.32.0
+	modernc.org/sqlite v1.34.5
+)
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v0.1.9 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	modernc.org/libc v1.55.3 // indirect
+	modernc.org/mathutil v1.6.0 // indirect
+	modernc.org/memory v1.8.0 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..56eed10
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,47 @@
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd h1:gbpYu9NMq8jhDVbvlGkMFWCjLFlqqEZjEmObmhUy6Vo=
+github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
+github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
+golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
+golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
+golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/term v0.28.0 h1:/Ts8HFuMR2E6IP/jlo7QVLZHggjKQbhu/7H0LJFr3Gg=
+golang.org/x/term v0.28.0/go.mod h1:Sw/lC2IAUZ92udQNf3WodGtn4k/XoLyZoh8v/8uiwek=
+golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
+golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
+modernc.org/cc/v4 v4.21.4 h1:3Be/Rdo1fpr8GrQ7IVw9OHtplU4gWbb+wNgeoBMmGLQ=
+modernc.org/cc/v4 v4.21.4/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ=
+modernc.org/ccgo/v4 v4.19.2 h1:lwQZgvboKD0jBwdaeVCTouxhxAyN6iawF3STraAal8Y=
+modernc.org/ccgo/v4 v4.19.2/go.mod h1:ysS3mxiMV38XGRTTcgo0DQTeTmAO4oCmJl1nX9VFI3s=
+modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE=
+modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ=
+modernc.org/gc/v2 v2.4.1 h1:9cNzOqPyMJBvrUipmynX0ZohMhcxPtMccYgGOJdOiBw=
+modernc.org/gc/v2 v2.4.1/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU=
+modernc.org/libc v1.55.3 h1:AzcW1mhlPNrRtjS5sS+eW2ISCgSOLLNyFzRh/V3Qj/U=
+modernc.org/libc v1.55.3/go.mod h1:qFXepLhz+JjFThQ4kzwzOjA/y/artDeg+pcYnY+Q83w=
+modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
+modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
+modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
+modernc.org/memory v1.8.0/go.mod h1:XPZ936zp5OMKGWPqbD3JShgd/ZoQ7899TUuQqxY+peU=
+modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
+modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc=
+modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss=
+modernc.org/sqlite v1.34.5 h1:Bb6SR13/fjp15jt70CL4f18JIN7p7dnMExd+UFnF15g=
+modernc.org/sqlite v1.34.5/go.mod h1:YLuNmX9NKs8wRNK2ko1LW1NGYcc9FkBO69JOt1AR9JE=
+modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=
+modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..3d5b038
--- /dev/null
+++ b/main.go
@@ -0,0 +1,69 @@
+package main
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"errors"
+	"log"
+	"net"
+	"os"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+var (
+	errBadPassword = errors.New("permission denied")
+	serverVersions = []string{
+		"SSH-2.0-OpenSSH_9.9",
+	}
+)
+
+func main() {
+	if len(os.Args) > 1 {
+		dbPath = os.Args[1] + "/sqlite.db"
+	}
+
+	initDB()
+	defer db.Close()
+
+	serverConfig := &ssh.ServerConfig{
+		MaxAuthTries:     6,
+		PasswordCallback: passwordCallback,
+		ServerVersion:    serverVersions[0],
+	}
+
+	privateKey, _ := rsa.GenerateKey(rand.Reader, 2048)
+	signer, _ := ssh.NewSignerFromSigner(privateKey)
+	serverConfig.AddHostKey(signer)
+
+	listener, err := net.Listen("tcp", ":22")
+	if err != nil {
+		log.Fatal("Failed to listen:", err)
+		return
+	}
+	defer listener.Close()
+
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			log.Fatal("Failed to accept:", err)
+			break
+		}
+		go handleConn(conn, serverConfig)
+	}
+}
+
+func passwordCallback(conn ssh.ConnMetadata, password []byte) (*ssh.Permissions, error) {
+	log.Println(conn.RemoteAddr(), string(conn.ClientVersion()), conn.User(), string(password))
+	logLogin(conn, password)
+	time.Sleep(100 * time.Millisecond)
+	return nil, errBadPassword
+}
+
+func handleConn(conn net.Conn, serverConfig *ssh.ServerConfig) {
+	defer conn.Close()
+	log.Println(conn.RemoteAddr())
+	logConnect(conn)
+	ssh.NewServerConn(conn, serverConfig)
+}