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/*
 * Copyright 2011 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.models;

import java.io.Serializable;
import java.security.Principal;
import java.util.HashSet;
import java.util.Set;

import com.gitblit.utils.StringUtils;

/**
 * UserModel is a serializable model class that represents a user and the user's
 * restricted repository memberships. Instances of UserModels are also used as
 * servlet user principals.
 * 
 * @author James Moger
 * 
 */
public class UserModel implements Principal, Serializable, Comparable<UserModel> {

	private static final long serialVersionUID = 1L;

	// field names are reflectively mapped in EditUser page
	public String username;
	public String password;
	public boolean canAdmin;
	public boolean excludeFromFederation;
	public final Set<String> repositories = new HashSet<String>();
	public final Set<TeamModel> teams = new HashSet<TeamModel>();

	public UserModel(String username) {
		this.username = username;
	}

	/**
	 * This method does not take into consideration Ownership where the
	 * administrator has not explicitly granted access to the owner.
	 * 
	 * @param repositoryName
	 * @return
	 */
	@Deprecated
	public boolean canAccessRepository(String repositoryName) {
		return canAdmin || repositories.contains(repositoryName.toLowerCase())
				|| hasTeamAccess(repositoryName);
	}

	public boolean canAccessRepository(RepositoryModel repository) {
		boolean isOwner = !StringUtils.isEmpty(repository.owner)
				&& repository.owner.equals(username);
		return canAdmin || isOwner || repositories.contains(repository.name.toLowerCase())
				|| hasTeamAccess(repository.name);
	}

	public boolean hasTeamAccess(String repositoryName) {
		for (TeamModel team : teams) {
			if (team.hasRepository(repositoryName)) {
				return true;
			}
		}
		return false;
	}

	public boolean hasRepository(String name) {
		return repositories.contains(name.toLowerCase());
	}

	public void addRepository(String name) {
		repositories.add(name.toLowerCase());
	}

	public void removeRepository(String name) {
		repositories.remove(name.toLowerCase());
	}

	public boolean isTeamMember(String teamname) {
		for (TeamModel team : teams) {
			if (team.name.equalsIgnoreCase(teamname)) {
				return true;
			}
		}
		return false;
	}

	@Override
	public String getName() {
		return username;
	}

	@Override
	public String toString() {
		return username;
	}

	@Override
	public int compareTo(UserModel o) {
		return username.compareTo(o.username);
	}
}