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1
16 package org.mortbay.util;
17 import java.io.IOException  ;
18
19 import org.apache.commons.logging.Log;
20 import org.mortbay.log.LogFactory;
21
22
23
48 public class Password extends Credential
49 {
50 private static Log log = LogFactory.getLog(Password.class);
51
52 private String _pw;
53
54
55
58 public Password(String password)
59 {
60 _pw=password;
61
62 while (_pw!=null && _pw.startsWith("OBF:"))
64 _pw=deobfuscate(_pw);
65 }
66
67
68 public String toString()
69 {
70 return _pw;
71 }
72
73
74 public String toStarString()
75 {
76 return "*****************************************************"
77 .substring(0,_pw.length());
78 }
79
80
81 public boolean check(Object credentials)
82 {
83 if (this == credentials)
84 return true;
85
86 if (credentials instanceof Password)
87 return credentials.equals(_pw);
88
89 if (credentials instanceof String )
90 return credentials.equals(_pw);
91
92 if (credentials instanceof Credential)
93 return ((Credential)credentials).check(_pw);
94
95 return false;
96 }
97
98
99 public boolean equals(Object o)
100 {
101 if (this == o)
102 return true;
103
104 if (null == o)
105 return false;
106
107 if (o instanceof Password)
108 {
109 Password p=(Password)o;
110 return p._pw == _pw || (null != _pw && _pw.equals(p._pw));
111 }
112
113 if (o instanceof String )
114 return o.equals(_pw);
115
116 return false;
117 }
118
119
120 public int hashCode() {
121 return null == _pw ? super.hashCode() : _pw.hashCode();
122 }
123
124
125 public static String obfuscate(String s)
126 {
127 StringBuffer buf = new StringBuffer ();
128 byte[] b = s.getBytes();
129
130 synchronized(buf)
131 {
132 buf.append("OBF:");
133 for (int i=0;i<b.length;i++)
134 {
135 byte b1 = b[i];
136 byte b2 = b[s.length()-(i+1)];
137 int i1= (int)b1+(int)b2+127;
138 int i2= (int)b1-(int)b2+127;
139 int i0=i1*256+i2;
140 String x=Integer.toString(i0,36);
141
142 switch(x.length())
143 {
144 case 1:buf.append('0');
145 case 2:buf.append('0');
146 case 3:buf.append('0');
147 default:buf.append(x);
148 }
149 }
150 return buf.toString();
151 }
152 }
153
154
155 public static String deobfuscate(String s)
156 {
157 if (s.startsWith("OBF:"))
158 s=s.substring(4);
159
160 byte[] b=new byte[s.length()/2];
161 int l=0;
162 for (int i=0;i<s.length();i+=4)
163 {
164 String x=s.substring(i,i+4);
165 int i0 = Integer.parseInt(x,36);
166 int i1=(i0/256);
167 int i2=(i0%256);
168 b[l++]=(byte)((i1+i2-254)/2);
169 }
170
171 return new String (b,0,l);
172 }
173
174
175
186 public static Password getPassword(String realm,String dft, String promptDft)
187 {
188 String passwd=System.getProperty(realm,dft);
189 if (passwd==null || passwd.length()==0)
190 {
191 try
192 {
193 System.out.print(realm+
194 ((promptDft!=null && promptDft.length()>0)
195 ?" [dft]":"")+" : ");
196 System.out.flush();
197 byte[] buf = new byte[512];
198 int len=System.in.read(buf);
199 if (len>0)
200 passwd=new String (buf,0,len).trim();
201 }
202 catch(IOException e)
203 {
204 log.warn(LogSupport.EXCEPTION,e);
205 }
206 if (passwd==null || passwd.length()==0)
207 passwd=promptDft;
208 }
209 return new Password(passwd);
210 }
211
212
213
214
217 public static void main(String [] arg)
218 {
219 if (arg.length!=1 && arg.length!=2 )
220 {
221 System.err.println("Usage - java org.mortbay.util.Password [<user>] <password>");
222 System.err.println("If the password is ?, the user will be prompted for the password");
223 System.exit(1);
224 }
225 String p=arg[arg.length==1?0:1];
226 Password pw = "?".equals(p)?new Password(p):new Password(p);
227 System.err.println(pw.toString());
228 System.err.println(obfuscate(pw.toString()));
229 System.err.println(Credential.MD5.digest(p));
230 if (arg.length==2)
231 System.err.println(Credential.Crypt.crypt(arg[0],pw.toString()));
232 }
233 }
234
235
236 |
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