org.kercoin.magrit.core.user.UserIdentityServiceImpl.java Source code

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Here is the source code for org.kercoin.magrit.core.user.UserIdentityServiceImpl.java

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/*
Copyright 2011 Frederic Menou
    
This file is part of Magrit.
    
Magrit is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
    
Magrit is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.
    
You should have received a copy of the GNU Affero General Public
License along with Magrit.
If not, see <http://www.gnu.org/licenses/>.
*/
package org.kercoin.magrit.core.user;

import java.io.IOException;
import java.io.StringReader;
import java.security.AccessControlException;
import java.util.Properties;

import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.kercoin.magrit.core.Configuration;
import org.kercoin.magrit.core.Context;
import org.kercoin.magrit.core.utils.GitUtils;

import com.google.inject.Inject;
import com.google.inject.Singleton;

@Singleton
public class UserIdentityServiceImpl implements UserIdentityService {

    private final GitUtils gitUtils;
    private final Configuration configuration;

    private final Properties data;

    private Repository datasource;

    private ObjectId lastVersion;

    @Inject
    public UserIdentityServiceImpl(Context ctx) {
        gitUtils = ctx.getGitUtils();
        configuration = ctx.configuration();
        data = new Properties();
    }

    private void open() throws IOException {
        if (this.datasource == null) {
            this.datasource = Git.open(configuration.getPublickeyRepositoryDir()).getRepository();
        }
    }

    @Override
    public UserIdentity find(String login) throws AccessControlException {
        try {
            open();
            ObjectId v = datasource.resolve("HEAD:users.properties");
            if (v == null) {
                throw new AccessControlException(
                        String.format("User '%s' not found in authentication database.", login));
            }
            if (!v.equals(lastVersion)) {
                data.clear();
                data.load(new StringReader(gitUtils.show(datasource, "HEAD:users.properties")));
            }

            String email = data.getProperty(String.format("user.%s.email", login));
            String name = data.getProperty(String.format("user.%s.name", login));
            if (email != null && name != null) {
                return new UserIdentity(email, name);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {

        }
        return new UserIdentity(login + "@localhost", login);
    }

}