com.google.gerrit.httpd.rpc.SystemInfoServiceImpl.java Source code

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Here is the source code for com.google.gerrit.httpd.rpc.SystemInfoServiceImpl.java

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// Copyright (C) 2008 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.

package com.google.gerrit.httpd.rpc;

import com.google.common.collect.Lists;
import com.google.gerrit.common.data.ContributorAgreement;
import com.google.gerrit.common.data.GerritConfig;
import com.google.gerrit.common.data.SshHostKey;
import com.google.gerrit.common.data.SystemInfoService;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.ssh.SshInfo;
import com.google.gwtjsonrpc.common.AsyncCallback;
import com.google.gwtjsonrpc.common.VoidResult;
import com.google.inject.Inject;
import com.google.inject.Provider;

import com.jcraft.jsch.HostKey;
import com.jcraft.jsch.JSch;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

class SystemInfoServiceImpl implements SystemInfoService {
    private static final Logger log = LoggerFactory.getLogger(SystemInfoServiceImpl.class);

    private static final JSch JSCH = new JSch();

    private final List<HostKey> hostKeys;
    private final Provider<HttpServletRequest> httpRequest;
    private final Provider<GerritConfig> config;
    private final ProjectCache projectCache;

    @Inject
    SystemInfoServiceImpl(final SshInfo daemon, final Provider<HttpServletRequest> hsr,
            final Provider<GerritConfig> cfg, final ProjectCache pc) {
        hostKeys = daemon.getHostKeys();
        httpRequest = hsr;
        config = cfg;
        projectCache = pc;
    }

    public void contributorAgreements(final AsyncCallback<List<ContributorAgreement>> callback) {
        Collection<ContributorAgreement> agreements = projectCache.getAllProjects().getConfig()
                .getContributorAgreements();
        List<ContributorAgreement> cas = Lists.newArrayListWithCapacity(agreements.size());
        for (ContributorAgreement ca : agreements) {
            cas.add(ca.forUi());
        }
        callback.onSuccess(cas);
    }

    public void daemonHostKeys(final AsyncCallback<List<SshHostKey>> callback) {
        final ArrayList<SshHostKey> r = new ArrayList<SshHostKey>(hostKeys.size());
        for (final HostKey hk : hostKeys) {
            String host = hk.getHost();
            if (host.startsWith("*:")) {
                final String port = host.substring(2);
                host = "[" + httpRequest.get().getServerName() + "]:" + port;
            }
            final String fp = hk.getFingerPrint(JSCH);
            r.add(new SshHostKey(host, hk.getType() + " " + hk.getKey(), fp));
        }
        callback.onSuccess(r);
    }

    @Override
    public void clientError(String message, AsyncCallback<VoidResult> callback) {
        HttpServletRequest r = httpRequest.get();
        String ua = r.getHeader("User-Agent");
        message = message.replaceAll("\n", "\n  ");
        log.error("Client UI JavaScript error: User-Agent=" + ua + ": " + message);
        callback.onSuccess(VoidResult.INSTANCE);
    }

    @Override
    public void gerritConfig(final AsyncCallback<GerritConfig> callback) {
        callback.onSuccess(config.get());
    }
}