通过SSH的交互式Java应用开发和管理

BSD License, 需要 JDK 6.0 或者 JRE 6.0 + OpenJDK Javac 运行.
附件为代码包 (请到 http://sjsh.dev.java.net 下载最新代码包, 此处附件以后不再更新)

参照代码包中 demo/src 目录下的示例, 就可以很简单的写成包装自己应用对象的 SSH Server 了

启动演示 SSH Shell Server

引用

D:\workspace\SecureJSH>ant demo
Buildfile: build.xml

build:

compile-demo:

run-java-demo:
     [java] SSH-2.0-SJSHD-1.0: Generating an authorized key for user 'sjsh'...
     [java] SSH-2.0-SJSHD-1.0: New authorized private key for user 'sjsh' stored to D:\workspace\SecureJSH\SJSH-Demo-Root\home\sjsh\.ssh\id_rsa
     [java] SSH-2.0-SJSHD-1.0: Updated authorized public keys for user 'sjsh' stored to D:\workspace\SecureJSH\SJSH-Demo-Root\home\sjsh\.ssh\authorized_keys
     [java] SSH-2.0-SJSHD-1.0(@localhost/127.0.0.1:22022): Starting...
     [java] SSH-2.0-SJSHD-1.0: Generating Host DSA Key...
     [java] SSH-2.0-SJSHD-1.0: Host DSA Key Stored to: D:\workspace\SecureJSH\SJSH-Demo-Root\etc\ssh\ssh_host_dsa_key
     [java] SSH-2.0-SJSHD-1.0: Host DSA Public Key Stored to: D:\workspace\SecureJSH\SJSH-Demo-Root\etc\ssh\ssh_host_dsa_key.pub
     [java] SSH-2.0-SJSHD-1.0: Generating Host RSA Key...
     [java] SSH-2.0-SJSHD-1.0: Host RSA Key Stored to: D:\workspace\SecureJSH\SJSH-Demo-Root\etc\ssh\ssh_host_rsa_key
     [java] SSH-2.0-SJSHD-1.0: Host RSA Public Key Stored to: D:\workspace\SecureJSH\SJSH-Demo-Root\etc\ssh\ssh_host_rsa_key.pub
     [java] SSH-2.0-SJSHD-1.0(@localhost/127.0.0.1:22022): Started.
     [java] Now you can login using an SSH client, with:
     [java]  User Name: sjsh
     [java]  Private Key: D:\workspace\SecureJSH\SJSH-Demo-Root\home\sjsh\.ssh\id_rsa
     [java]
     [java] Type in anything to stop:

然后通过任意SSH客户端连接上去:
(注意OpenSSH客户端需要更改 SJSH-Root\home\sjsh\.ssh\id_rsa 的权限属性为 600, 其他客户端不支持PEM格式私钥的需要转换其格式,  PuTTY 带的 PUTTYGEN 工具转换比较好用)

引用

Using username "sjsh".
Authenticating with public key "imported-openssh-key"

This is an interactive Java(TM) shell, type in Java(TM)
statements to get them executed.

Type in Ctrl^D to logout.

Type in ? or help for a list of available commands.

Type in <Tab> to complete commands.

Use UP/DOWN arrow keys for command history.

Here you are in the demo shell.

There are two demo built-in commands: 'msg' and 'msgs',
and one built-in field: 'msgs', those are added by this demo.

Try them out and write your own shell similarly.

SecueJSH Java(TM) Compiler Ready.

[jsh ]$ ?
Built-in commands:

class <class-name> +<class-code>
   Start defining a new class in current package
def <field-name> [ <type> [<comment> | -] | - ]
   Define a field that persists across statements
feedback [ on | off ]
   Control display of feedbacks
fields
   Show all fields currently defined
import <package-name>.* | static <qualified-class-name>.*
   Add an import
imports
   Show all imports in current import list
lineNo [ on | off ]
   Control display of line numbers
msg <message> | +<multi-line message>
   Leave a message
msgs
   Show all messages in demo shell 'msgs' list
package [ <package-name> ]
   Specify current package
preview [ on | off ]
   Control display of previews
redef <field-name> [ <type> [<comment> | -] | - ]
   Redefine a field that persists across statements
undef <field-name>
   Undefine an existing field
unimport <existing-import> | *
   Remove specified import

Type in:   help | ? <cmd-name> [<topic>]
for more details of a built-in command.

The following built-in methods:
  void javap(Class<?> c); void javap(Class<?> c,int depth);
  void javap(Object o); void javap(Object o,int depth);
can be used to examine the structure of any Java class (of an
Java object), where <depth> specifies how many classes up the
inheritance hierarchy should be printed, 0 for infinite.

Type in:   javap(this);
to see all built-in methods and fields listed.

[jsh ]$ fields
// builtin
protected java.util.Map<java.lang.String, java.lang.String> env; //= {USER=sjsh, SSH_CLIENT=127 ...
// builtin
protected java.io.PrintWriter out; //= java.io.PrintWriter@cfad31
// builtin
protected java.io.PrintWriter err; //= java.io.PrintWriter@73a5d3
// All Messages
protected java.util.Vector<java.lang.String> msgs; //= []

[jsh ]$ javap(this);
public class $JSH$
--- Constructors:
- public $JSH$()
--- Methods:
- public void run()
--- Fields:
- protected java.util.Vector<java.lang.String> msgs
extends public abstract class sjsh.jsh.JSHRunner
  implements java.lang.Runnable
--- Constructors:
- public JSHRunner()
--- Methods:
- public java.lang.String getEnv(java.lang.String)
- public void javap(java.lang.Object,int)
- public void javap(java.lang.Class<?>)
- public void javap(java.lang.Object)
- public void javap(java.lang.Class<?>,int)
- public void println(java.lang.Object)
- public void println()
- public void print(java.lang.Object)
- public java.io.PrintWriter printf(java.lang.String,java.lang.Object[])
--- Fields:
- protected java.util.Map<java.lang.String, java.lang.String> env
- protected java.io.PrintWriter out
- protected java.io.PrintWriter err

[jsh ]$ for(Map.Entry<Object,Object> en : System.getProperties().entrySet())
002: printf("%s = %s\n", en.getKey(), en.getValue());
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Java\jdk1.6.0_02\jre\bin
java.vm.version = 1.6.0_02-b05
ant.library.dir = D:\apps\apache-ant-1.7.0\lib
java.vm.vendor = Sun Microsystems Inc.
  .....
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
sun.desktop = windows
sun.cpu.isalist =

[jsh ]$