| | |
| | | // Copyright (C) 2009 The Android Open Source Project |
| | | // |
| | | // Licensed under the Apache License, Version 2.0 (the "License"); |
| | | // you may not use this file except in compliance with the License. |
| | | // You may obtain a copy of the License at |
| | | // |
| | | // http://www.apache.org/licenses/LICENSE-2.0 |
| | | // |
| | | // Unless required by applicable law or agreed to in writing, software |
| | | // distributed under the License is distributed on an "AS IS" BASIS, |
| | | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| | | // See the License for the specific language governing permissions and |
| | | // limitations under the License. |
| | | |
| | | /* |
| | | * Copyright (C) 2009 The Android Open Source Project |
| | | * Copyright 2014 gitblit.com. |
| | | * |
| | | * Licensed under the Apache License, Version 2.0 (the "License"); |
| | | * you may not use this file except in compliance with the License. |
| | | * You may obtain a copy of the License at |
| | | * |
| | | * http://www.apache.org/licenses/LICENSE-2.0 |
| | | * |
| | | * Unless required by applicable law or agreed to in writing, software |
| | | * distributed under the License is distributed on an "AS IS" BASIS, |
| | | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| | | * See the License for the specific language governing permissions and |
| | | * limitations under the License. |
| | | */ |
| | | package com.gitblit.transport.ssh.commands; |
| | | |
| | | import java.io.IOException; |
| | |
| | | import com.google.common.base.Strings; |
| | | import com.google.common.collect.Maps; |
| | | |
| | | /** |
| | | * Parses an SSH command-line and dispatches the command to the appropriate |
| | | * BaseCommand instance. |
| | | * |
| | | * @since 1.5.0 |
| | | */ |
| | | public abstract class DispatchCommand extends BaseCommand implements ExtensionPoint { |
| | | |
| | | private Logger log = LoggerFactory.getLogger(getClass()); |
| | |
| | | dispatchers.clear(); |
| | | } |
| | | |
| | | protected void registerDispatcher(UserModel user, Class<? extends DispatchCommand> cmd) { |
| | | /** |
| | | * Setup this dispatcher. Commands and nested dispatchers are normally |
| | | * registered within this method. |
| | | * |
| | | * @since 1.5.0 |
| | | */ |
| | | protected abstract void setup(); |
| | | |
| | | /** |
| | | * Register a command or a dispatcher by it's class. |
| | | * |
| | | * @param clazz |
| | | */ |
| | | @SuppressWarnings("unchecked") |
| | | protected final void register(Class<? extends BaseCommand> clazz) { |
| | | if (DispatchCommand.class.isAssignableFrom(clazz)) { |
| | | registerDispatcher((Class<? extends DispatchCommand>) clazz); |
| | | return; |
| | | } |
| | | |
| | | registerCommand(clazz); |
| | | } |
| | | |
| | | /** |
| | | * Register a command or a dispatcher instance. |
| | | * |
| | | * @param cmd |
| | | */ |
| | | protected final void register(BaseCommand cmd) { |
| | | if (cmd instanceof DispatchCommand) { |
| | | registerDispatcher((DispatchCommand) cmd); |
| | | return; |
| | | } |
| | | registerCommand(cmd); |
| | | } |
| | | |
| | | private void registerDispatcher(Class<? extends DispatchCommand> clazz) { |
| | | try { |
| | | DispatchCommand dispatcher = cmd.newInstance(); |
| | | registerDispatcher(user, dispatcher); |
| | | DispatchCommand dispatcher = clazz.newInstance(); |
| | | registerDispatcher(dispatcher); |
| | | } catch (Exception e) { |
| | | log.error("failed to instantiate {}", cmd.getName()); |
| | | log.error("failed to instantiate {}", clazz.getName()); |
| | | } |
| | | } |
| | | |
| | | protected void registerDispatcher(UserModel user, DispatchCommand dispatcher) { |
| | | private void registerDispatcher(DispatchCommand dispatcher) { |
| | | Class<? extends DispatchCommand> dispatcherClass = dispatcher.getClass(); |
| | | if (!dispatcherClass.isAnnotationPresent(CommandMetaData.class)) { |
| | | throw new RuntimeException(MessageFormat.format("{0} must be annotated with {1}!", dispatcher.getName(), |
| | | CommandMetaData.class.getName())); |
| | | } |
| | | |
| | | UserModel user = getContext().getClient().getUser(); |
| | | CommandMetaData meta = dispatcherClass.getAnnotation(CommandMetaData.class); |
| | | if (meta.admin() && !user.canAdmin()) { |
| | | log.debug(MessageFormat.format("excluding admin dispatcher {0} for {1}", meta.name(), user.username)); |
| | | log.debug(MessageFormat.format("excluding admin dispatcher {0} for {1}", |
| | | meta.name(), user.username)); |
| | | return; |
| | | } |
| | | |
| | | log.debug("registering {} dispatcher", meta.name()); |
| | | try { |
| | | dispatcher.registerCommands(user); |
| | | dispatcher.setContext(getContext()); |
| | | dispatcher.setWorkQueue(getWorkQueue()); |
| | | dispatcher.setup(); |
| | | if (dispatcher.commands.isEmpty() && dispatcher.dispatchers.isEmpty()) { |
| | | // exclude because there are no commands available to the user |
| | | log.debug(MessageFormat.format("excluding dispatcher {0} for {1}", meta.name(), user.username)); |
| | | log.debug(MessageFormat.format("excluding empty dispatcher {0} for {1}", |
| | | meta.name(), user.username)); |
| | | return; |
| | | } |
| | | |
| | | log.debug("registering {} dispatcher", meta.name()); |
| | | dispatchers.put(meta.name(), dispatcher); |
| | | for (String alias : meta.aliases()) { |
| | | aliasToCommand.put(alias, meta.name()); |
| | |
| | | } |
| | | } |
| | | |
| | | |
| | | protected abstract void registerCommands(UserModel user); |
| | | |
| | | /** |
| | | * Registers a command as long as the user is permitted to execute it. |
| | | * |
| | | * @param user |
| | | * @param cmd |
| | | * @param clazz |
| | | */ |
| | | protected void registerCommand(UserModel user, Class<? extends BaseCommand> cmd) { |
| | | if (!cmd.isAnnotationPresent(CommandMetaData.class)) { |
| | | throw new RuntimeException(MessageFormat.format("{0} must be annotated with {1}!", cmd.getName(), |
| | | private void registerCommand(Class<? extends BaseCommand> clazz) { |
| | | if (!clazz.isAnnotationPresent(CommandMetaData.class)) { |
| | | throw new RuntimeException(MessageFormat.format("{0} must be annotated with {1}!", clazz.getName(), |
| | | CommandMetaData.class.getName())); |
| | | } |
| | | CommandMetaData meta = cmd.getAnnotation(CommandMetaData.class); |
| | | |
| | | UserModel user = getContext().getClient().getUser(); |
| | | CommandMetaData meta = clazz.getAnnotation(CommandMetaData.class); |
| | | if (meta.admin() && !user.canAdmin()) { |
| | | log.debug(MessageFormat.format("excluding admin command {0} for {1}", meta.name(), user.username)); |
| | | return; |
| | | } |
| | | commands.add(cmd); |
| | | commands.add(clazz); |
| | | } |
| | | |
| | | /** |
| | | * Registers a command as long as the user is permitted to execute it. |
| | | * |
| | | * @param user |
| | | * @param cmd |
| | | */ |
| | | protected void registerCommand(UserModel user, BaseCommand cmd) { |
| | | private void registerCommand(BaseCommand cmd) { |
| | | if (!cmd.getClass().isAnnotationPresent(CommandMetaData.class)) { |
| | | throw new RuntimeException(MessageFormat.format("{0} must be annotated with {1}!", cmd.getName(), |
| | | CommandMetaData.class.getName())); |
| | | } |
| | | |
| | | UserModel user = getContext().getClient().getUser(); |
| | | CommandMetaData meta = cmd.getClass().getAnnotation(CommandMetaData.class); |
| | | if (meta.admin() && !user.canAdmin()) { |
| | | log.debug(MessageFormat.format("excluding admin command {0} for {1}", meta.name(), user.username)); |
| | |
| | | } |
| | | |
| | | for (Map.Entry<String, DispatchCommand> entry : dispatchers.entrySet()) { |
| | | DispatchCommand dispatcher = entry.getValue(); |
| | | map.put(entry.getKey(), entry.getValue().getClass()); |
| | | } |
| | | } |
| | |
| | | return false; |
| | | } |
| | | |
| | | public String getDescription() { |
| | | return getClass().getAnnotation(CommandMetaData.class).description(); |
| | | } |
| | | |
| | | @Override |
| | | public String usage() { |
| | | Set<String> cmds = new TreeSet<String>(); |
| | |
| | | continue; |
| | | } |
| | | |
| | | String displayName = name; |
| | | String displayName = name + (meta.admin() ? "*" : ""); |
| | | if (commandToAliases.containsKey(meta.name())) { |
| | | displayName = name + " (" + Joiner.on(',').join(commandToAliases.get(meta.name())) + ")"; |
| | | displayName = name + (meta.admin() ? "*" : "")+ " (" + Joiner.on(',').join(commandToAliases.get(meta.name())) + ")"; |
| | | } |
| | | displayNames.put(name, displayName); |
| | | |
| | |
| | | String format = "%-" + maxLength + "s %s"; |
| | | |
| | | final StringBuilder usage = new StringBuilder(); |
| | | if (!StringUtils.isEmpty(getName())) { |
| | | String title = getName().toUpperCase() + ": " + getDescription(); |
| | | String b = com.gitblit.utils.StringUtils.leftPad("", title.length() + 2, '═'); |
| | | usage.append('\n'); |
| | | usage.append(b).append('\n'); |
| | | usage.append(' ').append(title).append('\n'); |
| | | usage.append(b).append('\n'); |
| | | usage.append('\n'); |
| | | } |
| | | |
| | | if (!cmds.isEmpty()) { |
| | | usage.append("Available commands"); |
| | | if (!getName().isEmpty()) { |