| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.aws.ec2.functions; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkArgument; |
| 22 | import static com.google.common.base.Preconditions.checkNotNull; |
| 23 | |
| 24 | import javax.inject.Singleton; |
| 25 | |
| 26 | import org.jclouds.crypto.CryptoStreams; |
| 27 | |
| 28 | import com.google.common.base.Charsets; |
| 29 | import com.google.common.base.Function; |
| 30 | import com.google.common.base.Predicate; |
| 31 | import com.google.common.base.Predicates; |
| 32 | |
| 33 | /** |
| 34 | * @see <a href= |
| 35 | * "http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-query-ImportKeyPair.html" |
| 36 | * /> |
| 37 | * @author Adrian Cole |
| 38 | */ |
| 39 | @Singleton |
| 40 | public class EncodedRSAPublicKeyToBase64 implements Function<Object, String> { |
| 41 | private static Predicate<Object> startsWith(String value) { |
| 42 | return new ToStringStartsWith(value); |
| 43 | } |
| 44 | |
| 45 | private static final class ToStringStartsWith implements Predicate<Object> { |
| 46 | private final String value; |
| 47 | |
| 48 | private ToStringStartsWith(String value) { |
| 49 | this.value = value; |
| 50 | } |
| 51 | |
| 52 | @Override |
| 53 | public boolean apply(Object input) { |
| 54 | return input.toString().startsWith(value); |
| 55 | } |
| 56 | |
| 57 | public String toString() { |
| 58 | return "toStringStartsWith(" + value + ")"; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | @SuppressWarnings("unchecked") |
| 63 | private static final Predicate<Object> ALLOWED_MARKERS = Predicates.or(startsWith("ssh-rsa"), |
| 64 | startsWith("-----BEGIN CERTIFICATE-----"), startsWith("---- BEGIN SSH2 PUBLIC KEY ----")); |
| 65 | |
| 66 | @Override |
| 67 | public String apply(Object from) { |
| 68 | checkNotNull(from, "input"); |
| 69 | checkArgument(ALLOWED_MARKERS.apply(from), "must be a ssh public key, conforming to %s ", ALLOWED_MARKERS); |
| 70 | return CryptoStreams.base64(from.toString().getBytes(Charsets.UTF_8)); |
| 71 | } |
| 72 | } |