/*
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* Copyright 2014 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.transport.ssh.gitblit;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import org.kohsuke.args4j.Argument;
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import org.kohsuke.args4j.Option;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.gitblit.models.UserModel;
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import com.gitblit.transport.ssh.IPublicKeyManager;
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import com.gitblit.transport.ssh.SshKey;
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import com.gitblit.transport.ssh.commands.CommandMetaData;
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import com.gitblit.transport.ssh.commands.DispatchCommand;
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import com.gitblit.transport.ssh.commands.SshCommand;
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import com.gitblit.utils.FlipTable;
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import com.gitblit.utils.FlipTable.Borders;
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/**
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* The dispatcher and it's commands for SSH public key management.
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*
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* @author James Moger
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*
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*/
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@CommandMetaData(name = "keys", description = "SSH public key management commands")
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public class KeysDispatcher extends DispatchCommand {
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@Override
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protected void setup(UserModel user) {
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register(user, AddKey.class);
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register(user, RemoveKey.class);
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register(user, ListKeys.class);
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}
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@CommandMetaData(name = "add", description = "Add an SSH public key to your account")
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public static class AddKey extends BaseKeyCommand {
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protected final Logger log = LoggerFactory.getLogger(getClass());
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@Argument(metaVar = "<stdin>|KEY", usage = "the key to add")
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private List<String> addKeys = new ArrayList<String>();
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@Override
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public void run() throws IOException, UnloggedFailure {
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String username = getContext().getClient().getUsername();
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List<String> keys = readKeys(addKeys);
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for (String key : keys) {
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SshKey sshKey = parseKey(key);
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getKeyManager().addKey(username, sshKey);
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log.info("added SSH public key for {}", username);
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}
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}
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}
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@CommandMetaData(name = "remove", aliases = { "rm" }, description = "Remove an SSH public key from your account")
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public static class RemoveKey extends BaseKeyCommand {
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protected final Logger log = LoggerFactory.getLogger(getClass());
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private final String ALL = "ALL";
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@Argument(metaVar = "-|<INDEX>|<KEY>|ALL", usage = "the key to remove", required = true)
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private List<String> removeKeys = new ArrayList<String>();
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@Override
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public void run() throws IOException, UnloggedFailure {
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String username = getContext().getClient().getUsername();
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// remove a key that has been piped to the command
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// or remove all keys
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List<SshKey> currentKeys = getKeyManager().getKeys(username);
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if (currentKeys == null || currentKeys.isEmpty()) {
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throw new UnloggedFailure(1, "There are no registered keys!");
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}
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List<String> keys = readKeys(removeKeys);
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if (keys.contains(ALL)) {
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if (getKeyManager().removeAllKeys(username)) {
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stdout.println("Removed all keys.");
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log.info("removed all SSH public keys from {}", username);
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} else {
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log.warn("failed to remove all SSH public keys from {}", username);
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}
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} else {
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for (String key : keys) {
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try {
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// remove a key by it's index (1-based indexing)
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int index = Integer.parseInt(key);
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if (index > keys.size()) {
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if (keys.size() == 1) {
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throw new UnloggedFailure(1, "Invalid index specified. There is only 1 registered key.");
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}
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throw new UnloggedFailure(1, String.format("Invalid index specified. There are %d registered keys.", keys.size()));
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}
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SshKey sshKey = currentKeys.get(index - 1);
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if (getKeyManager().removeKey(username, sshKey)) {
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stdout.println(String.format("Removed %s", sshKey.getFingerprint()));
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} else {
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throw new UnloggedFailure(1, String.format("failed to remove #%s: %s", key, sshKey.getFingerprint()));
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}
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} catch (Exception e) {
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// remove key by raw key data
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SshKey sshKey = parseKey(key);
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if (getKeyManager().removeKey(username, sshKey)) {
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stdout.println(String.format("Removed %s", sshKey.getFingerprint()));
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log.info("removed SSH public key {} from {}", sshKey.getFingerprint(), username);
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} else {
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log.warn("failed to remove SSH public key {} from {}", sshKey.getFingerprint(), username);
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throw new UnloggedFailure(1, String.format("failed to remove %s", sshKey.getFingerprint()));
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}
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}
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}
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}
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}
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}
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@CommandMetaData(name = "list", aliases = { "ls" }, description = "List your registered public keys")
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public static class ListKeys extends SshCommand {
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@Option(name = "-L", usage = "list complete public key parameters")
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private boolean showRaw;
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@Override
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public void run() {
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IPublicKeyManager keyManager = getContext().getGitblit().getPublicKeyManager();
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String username = getContext().getClient().getUsername();
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List<SshKey> keys = keyManager.getKeys(username);
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if (showRaw) {
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asRaw(keys);
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} else {
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asTable(keys);
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}
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}
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/* output in the same format as authorized_keys */
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protected void asRaw(List<SshKey> keys) {
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if (keys == null) {
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return;
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}
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for (SshKey key : keys) {
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stdout.println(key.getRawData());
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}
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}
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protected void asTable(List<SshKey> keys) {
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String[] headers = { "#", "Fingerprint", "Comment", "Type" };
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int len = keys == null ? 0 : keys.size();
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Object[][] data = new Object[len][];
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for (int i = 0; i < len; i++) {
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// show 1-based index numbers with the fingerprint
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// this is useful for comparing with "ssh-add -l"
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SshKey k = keys.get(i);
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data[i] = new Object[] { (i + 1), k.getFingerprint(), k.getComment(), k.getAlgorithm() };
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}
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stdout.println(FlipTable.of(headers, data, Borders.BODY_HCOLS));
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}
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}
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}
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