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1
2
29
30 package com.jcraft.jsch;
31
32 public class HostKey{
33 private static final byte[] sshdss="ssh-dss".getBytes();
34 private static final byte[] sshrsa="ssh-rsa".getBytes();
35
36 protected static final int GUESS=0;
37 public static final int SSHDSS=1;
38 public static final int SSHRSA=2;
39 static final int UNKNOWN=3;
40
41 protected String  host;
42 protected int type;
43 protected byte[] key;
44
45 public HostKey(String host, byte[] key) throws JSchException {
46 this(host, GUESS, key);
47 }
48
49 public HostKey(String host, int type, byte[] key) throws JSchException {
50 this.host=host;
51 if(type==GUESS){
52 if(key[8]=='d'){ this.type=SSHDSS; }
53 else if(key[8]=='r'){ this.type=SSHRSA; }
54 else { throw new JSchException("invalid key type");}
55 }
56 else{
57 this.type=type;
58 }
59 this.key=key;
60 }
61
62 public String getHost(){ return host; }
63 public String getType(){
64 if(type==SSHDSS){ return new String (sshdss); }
65 if(type==SSHRSA){ return new String (sshrsa);}
66 return "UNKNOWN";
67 }
68 public String getKey(){
69 return new String (Util.toBase64(key, 0, key.length));
70 }
71 public String getFingerPrint(JSch jsch){
72 HASH hash=null;
73 try{
74 Class c=Class.forName(jsch.getConfig("md5"));
75 hash=(HASH)(c.newInstance());
76 }
77 catch(Exception e){ System.err.println("getFingerPrint: "+e); }
78 return Util.getFingerPrint(hash, key);
79 }
80
81 boolean isMatched(String _host){
82 return isIncluded(_host);
83 }
84
85 private boolean isIncluded(String _host){
86 int i=0;
87 String hosts=this.host;
88 int hostslen=hosts.length();
89 int hostlen=_host.length();
90 int j;
91 while(i<hostslen){
92 j=hosts.indexOf(',', i);
93 if(j==-1){
94 if(hostlen!=hostslen-i) return false;
95 return hosts.regionMatches(true, i, _host, 0, hostlen);
96 }
97 if(hostlen==(j-i)){
98 if(hosts.regionMatches(true, i, _host, 0, hostlen)) return true;
99 }
100 i=j+1;
101 }
102 return false;
103 }
104 }
105 |
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