JwtUser JwtAuthenticationEntryPoint JwtAuthorizationTokenFilter JwtUserDetailsService

package me.zhengjie.core.security;

import com.fasterxml.jackson.annotation.JsonIgnore;
import lombok.AllArgsConstructor;
import lombok.Getter;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.sql.Timestamp;
import java.util.*;

/**
 * @author jie
 * @date 2018-11-23
 */
@Getter
@AllArgsConstructor
public class JwtUser implements UserDetails {

    @JsonIgnore
    private final Long id;

    private final String username;

    @JsonIgnore
    private final String password;

    private final String avatar;

    private final String email;

    @JsonIgnore
    private final Collection<? extends GrantedAuthority> authorities;

    private final boolean enabled;

    private Timestamp createTime;

    @JsonIgnore
    private final Date lastPasswordResetDate;

    @JsonIgnore
    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @JsonIgnore
    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @JsonIgnore
    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @JsonIgnore
    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public boolean isEnabled() {
        return enabled;
    }

    /**
     * 在我们保存权限的时候加上了前缀ROLE_，因此在这里需要处理下数据
     * @return
     */
    public Collection getRoles() {
        Set<String> roles = new LinkedHashSet<>();
        for (GrantedAuthority authority : authorities) {
            roles.add(authority.getAuthority().substring(5));
        }
        return roles;
    }
}

package me.zhengjie.core.security;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;

@Component
public class
JwtAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {

    private static final long serialVersionUID = -8970718410437077606L;

    @Override
    public void commence(HttpServletRequest request,
                         HttpServletResponse response,
                         AuthenticationException authException) throws IOException {
        /**
         * 当用户尝试访问安全的REST资源而不提供任何凭据时，将调用此方法发送401 响应
         */
        response.sendError(HttpServletResponse.SC_UNAUTHORIZED, authException==null?"Unauthorized":authException.getMessage());
    }
}

package me.zhengjie.core.security;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;

@Component
public class
JwtAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {

    private static final long serialVersionUID = -8970718410437077606L;

    @Override
    public void commence(HttpServletRequest request,
                         HttpServletResponse response,
                         AuthenticationException authException) throws IOException {
        /**
         * 当用户尝试访问安全的REST资源而不提供任何凭据时，将调用此方法发送401 响应
         */
        response.sendError(HttpServletResponse.SC_UNAUTHORIZED, authException==null?"Unauthorized":authException.getMessage());
    }
}

package me.zhengjie.core.security;

import io.jsonwebtoken.ExpiredJwtException;
import me.zhengjie.core.utils.JwtTokenUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class JwtAuthorizationTokenFilter extends OncePerRequestFilter {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    private final UserDetailsService userDetailsService;
    private final JwtTokenUtil jwtTokenUtil;
    private final String tokenHeader;

    public JwtAuthorizationTokenFilter(@Qualifier("jwtUserDetailsService") UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil, @Value("${jwt.header}") String tokenHeader) {
        this.userDetailsService = userDetailsService;
        this.jwtTokenUtil = jwtTokenUtil;
        this.tokenHeader = tokenHeader;
    }

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {
        logger.debug("processing authentication for ‘{}‘", request.getRequestURL());

        final String requestHeader = request.getHeader(this.tokenHeader);

        String username = null;
        String authToken = null;
        if (requestHeader != null && requestHeader.startsWith("Bearer ")) {
            authToken = requestHeader.substring(7);
            try {
                username = jwtTokenUtil.getUsernameFromToken(authToken);
            } catch (ExpiredJwtException e) {
               logger.error(e.getMessage());
            }
        }

        logger.debug("checking authentication for user ‘{}‘", username);

        if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
            logger.debug("security context was null, so authorizating user");

            // It is not compelling necessary to load the use details from the database. You could also store the information
            // in the token and read it from it. It‘s up to you ;)
            UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);

            // For simple validation it is completely sufficient to just check the token integrity. You don‘t have to call
            // the database compellingly. Again it‘s up to you ;)
            if (jwtTokenUtil.validateToken(authToken, userDetails)) {
                UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
                authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                logger.info("authorizated user ‘{}‘, setting security context", username);
                SecurityContextHolder.getContext().setAuthentication(authentication);
            }
        }
        chain.doFilter(request, response);
    }
}

package me.zhengjie.core.service;

import me.zhengjie.common.exception.EntityNotFoundException;
import me.zhengjie.common.utils.ValidationUtil;
import me.zhengjie.core.security.JwtUser;
import me.zhengjie.system.domain.Permission;
import me.zhengjie.system.domain.Role;
import me.zhengjie.system.domain.User;
import me.zhengjie.system.repository.PermissionRepository;
import me.zhengjie.system.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * @author jie
 * @date 2018-11-22
 */
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
public class JwtUserDetailsService implements UserDetailsService {

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private PermissionRepository permissionRepository;

    @Override
    public UserDetails loadUserByUsername(String username){

        User user = null;
        if(ValidationUtil.isEmail(username)){
            user = userRepository.findByEmail(username);
        } else {
            user = userRepository.findByUsername(username);
        }

        if (user == null) {
            throw new EntityNotFoundException(User.class, "name", username);
        } else {
            return create(user);
        }
    }

    public UserDetails create(User user) {
        return new JwtUser(
                user.getId(),
                user.getUsername(),
                user.getPassword(),
                user.getAvatar(),
                user.getEmail(),
                mapToGrantedAuthorities(user.getRoles(),permissionRepository),
                user.getEnabled(),
                user.getCreateTime(),
                user.getLastPasswordResetTime()
        );
    }

    private static List<GrantedAuthority> mapToGrantedAuthorities(Set<Role> roles,PermissionRepository permissionRepository) {

        Set<Permission> permissions = new HashSet<>();
        for (Role role : roles) {
            Set<Role> roleSet = new HashSet<>();
            roleSet.add(role);
            permissions.addAll(permissionRepository.findByRoles(roleSet));
        }

        return permissions.stream()
                .map(permission -> new SimpleGrantedAuthority("ROLE_"+permission.getName()))
                .collect(Collectors.toList());
    }
}

package me.zhengjie.core.service;

import me.zhengjie.common.exception.EntityNotFoundException;
import me.zhengjie.common.utils.ValidationUtil;
import me.zhengjie.core.security.JwtUser;
import me.zhengjie.system.domain.Permission;
import me.zhengjie.system.domain.Role;
import me.zhengjie.system.domain.User;
import me.zhengjie.system.repository.PermissionRepository;
import me.zhengjie.system.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * @author jie
 * @date 2018-11-22
 */
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
public class JwtUserDetailsService implements UserDetailsService {

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private PermissionRepository permissionRepository;

    @Override
    public UserDetails loadUserByUsername(String username){

        User user = null;
        if(ValidationUtil.isEmail(username)){
            user = userRepository.findByEmail(username);
        } else {
            user = userRepository.findByUsername(username);
        }

        if (user == null) {
            throw new EntityNotFoundException(User.class, "name", username);
        } else {
            return create(user);
        }
    }

    public UserDetails create(User user) {
        return new JwtUser(
                user.getId(),
                user.getUsername(),
                user.getPassword(),
                user.getAvatar(),
                user.getEmail(),
                mapToGrantedAuthorities(user.getRoles(),permissionRepository),
                user.getEnabled(),
                user.getCreateTime(),
                user.getLastPasswordResetTime()
        );
    }

    private static List<GrantedAuthority> mapToGrantedAuthorities(Set<Role> roles,PermissionRepository permissionRepository) {

        Set<Permission> permissions = new HashSet<>();
        for (Role role : roles) {
            Set<Role> roleSet = new HashSet<>();
            roleSet.add(role);
            permissions.addAll(permissionRepository.findByRoles(roleSet));
        }

        return permissions.stream()
                .map(permission -> new SimpleGrantedAuthority("ROLE_"+permission.getName()))
                .collect(Collectors.toList());
    }
}