plugins/cvs/cvs-core/src/com/intellij/cvsSupport2/connections/ssh/SshPublicKeyAuthentication.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.cvsSupport2.connections.ssh;
  17
  18 import com.intellij.openapi.util.io.FileUtil;
  19 import com.trilead.ssh2.Connection;
  20 import org.netbeans.lib.cvsclient.connection.AuthenticationException;
  21
  22 import java.io.File;
  23 import java.io.IOException;
  24
  25 public class SshPublicKeyAuthentication implements SshAuthentication {
  26   private final String myLogin;
  27   private final File myFile;
  28   private final SSHPasswordProvider myPasswordProvider;
  29   private final String myCvsRootAsString;
  30
  31   public SshPublicKeyAuthentication(final File file, final String login, final SSHPasswordProvider passwordProvider,
  32                                     final String cvsRootAsString) {
  33     myFile = file;
  34     myLogin = login;
  35     myPasswordProvider = passwordProvider;
  36     myCvsRootAsString = cvsRootAsString;
  37   }
  38
  39   public void authenticate(final Connection connection) throws AuthenticationException, SolveableAuthenticationException {
  40     char[] keyChars;
  41     try {
  42       keyChars = FileUtil.loadFileText(myFile);
  43     }
  44     catch (IOException e) {
  45       throw new SolveableAuthenticationException("Cannot load public key file.");
  46     }
  47
  48     try {
  49       final String password = myPasswordProvider.getPPKPasswordForCvsRoot(myCvsRootAsString);
  50       if (! connection.authenticateWithPublicKey(myLogin, keyChars, password)) {
  51         throw new SolveableAuthenticationException("Authentication rejected.");
  52       }
  53     }
  54     catch (IOException e) {
  55       throw new SolveableAuthenticationException(e.getMessage(), e);
  56     }
  57   }
  58 }