[zeppelin] 支持多组LdapRealm登录

需求：

zeppelin（v:0.8.0） 目前接入了单个邮箱的Ldap验证，公司资源整合之后，需要支持多个邮箱Ldap验证，经研究发现，zeppelin使用的是shiro进行权限验证，shiro配置是支持多组Realm验证，配置上筛选器就可以。

shiro 多Realm

配置解析

zeppelindir/conf/shiro.ini 为zepplin中shiro 配置路径

• 简单示例：

用户
[users]
#用户zhang的密码是123，此用户具有role1和role2两个角色
zhang=123,role1,role2
wang=123,role2 
#权限
[roles]
#角色role1对资源user拥有create、update权限
role1=user:create,user:update
#角色role2对资源user拥有create、delete权限
role2=user:create,user:delete
#角色role3对资源user拥有create权限
role3=user:create

• ini配置中主要配置有四大类：main，users，roles，urls

[main]
#提供了对根对象 securityManager 及其依赖的配置
securityManager=org.apache.shiro.mgt.DefaultSecurityManager
…………
securityManager.realms=$jdbcRealm
 
[users]
#提供了对用户/密码及其角色的配置，用户名=密码，角色 1，角色 2
username=password,role1,role2
 
 
[roles]
#提供了角色及权限之间关系的配置，角色=权限 1，权限 2
role1=permission1,permission2
 
 
[urls]
#用于 web，提供了对 web url 拦截相关的配置，url=拦截器[参数]，拦截器
/index.html = anon
/admin/** = authc, roles[admin], perms["permission1"]

main主要配置shiro的一些对象，例如securityManager ，Realm，authenticator，authcStrategy 等等,例如

[main]
#声明一个realm  
MyRealm1=com.shiro.mutilrealm.MyRealm1
MyRealm2=com.shiro.mutilrealm.MyRealm2
 
#配置验证器
authenticator = org.apache.shiro.authc.pam.ModularRealmAuthenticator
 
# AllSuccessfulStrategy 表示 MyRealm1和MyRealm2 认证都通过才算通过
#配置策略
#authcStrategy = org.apache.shiro.authc.pam.AllSuccessfulStrategy
authcStrategy = com.shiro.authenticationstrategy.MyAuthenticationStrategy
 
 
#将验证器和策略关联起来
authenticator.authenticationStrategy = $authcStrategy
 
 
#配置验证器所使用的Realm
authenticator.realms=$MyRealm2,$MyRealm1
 
#把Authenticator设置给securityManager
securityManager.authenticator = $authenticator

在这里我们就找到了想要的

配置多Ldap Realm

示例：

[main]
### @ucarinc.com Ldap Realm
ucarRealm = org.apache.shiro.realm.activedirectory.ActiveDirectoryRealm
ucarRealm.systemUsername = ucarinc\ldapZeppelin

#use either systemPassword or hadoopSecurityCredentialPath, more details in http://zeppelin.apache.org/docs/latest/security/shiroauthentication.html
ucarRealm.systemPassword = abcd.1234
ucarRealm.searchBase = OU=总部集团,OU=神州优车集团,DC=ucarinc,DC=com
ucarRealm.url = ldap://10.100.20.26:389
ucarRealm.groupRolesMap = "CN=tech_plat_zeppelin_admin,OU=group,OU=邮件组,DC=ucarinc,DC=com":"admin"

### @test1.com Ldap Realm 
zucheRealm = org.apache.shiro.realm.activedirectory.ActiveDirectoryRealm
zucheRealm.systemUsername = [email protected]
zucheRealm.systemPassword = test1PED
zucheRealm.searchBase = ou=Test1,dc=test1,dc=com
zucheRealm.url = ldap://test1host:test1port
zucheRealm.groupRolesMap = "CN=admin,OU=group,DC=test1,DC=com":"admin"

### @test1.com Ldap Realm 
test1Realm = org.apache.shiro.realm.activedirectory.ActiveDirectoryRealm
test1Realm.systemUsername = [email protected]
test1Realm.systemPassword = test1PED
test1Realm.searchBase = ou=Test1,dc=test1,dc=com
test1Realm.url = ldap://test1host:test1port
test1Realm.groupRolesMap = "CN=admin,OU=group,DC=test1,DC=com":"admin"

### @test2.com Ldap Realm 
test2Realm = org.apache.shiro.realm.activedirectory.ActiveDirectoryRealm
test2Realm.systemUsername = [email protected]
test2Realm.systemPassword = test2PED
test2Realm.searchBase = ou=Test2,dc=test2,dc=com
test2Realm.url = ldap://test2host:test2port
test2Realm.groupRolesMap = "CN=admin,OU=group,DC=test2,DC=com":"admin"
#配置验证器
ucarauthenticator = org.apache.shiro.authc.pam.ModularRealmAuthenticator

#配置验证器所使用的Realm
ucarauthenticator.realms=$test1Realm,$test2Realm

#配置策略
ucarauthcStrategy = org.apache.shiro.authc.pam.AtLeastOneSuccessfulStrategy

#将验证器和策略关联起来
ucarauthenticator.authenticationStrategy = $ucarauthcStrategy

 
#把Authenticator设置给securityManager
securityManager.authenticator = $ucarauthenticator

bug 解决

部署zeppelin 发现，在登录时不对，有错误发生，经排查发现在SecurityUtils.getRoles();

经查询发现，是没有捕获找不到ldaprole错误导致：

改成如下：

public static HashSet getRoles() {
    if (!isEnabled) {
      return EMPTY_HASHSET;
    }
    Subject subject = org.apache.shiro.SecurityUtils.getSubject();
    HashSet roles = new HashSet<>();
    Map allRoles = null;

    try {
      if (subject.isAuthenticated()) {
        Collection realmsList = SecurityUtils.getRealmsList();
        for (Iterator iterator = realmsList.iterator(); iterator.hasNext(); ) {
          Realm realm = iterator.next();
          String name = realm.getClass().getName();
          if (name.equals("org.apache.shiro.realm.text.IniRealm")) {
            allRoles = ((IniRealm) realm).getIni().get("roles");
            break;
          } else if (name.equals("org.apache.zeppelin.realm.LdapRealm")) {
            try {
              AuthorizationInfo auth = ((LdapRealm) realm).queryForAuthorizationInfo(
                      new SimplePrincipalCollection(subject.getPrincipal(), realm.getName()),
                      ((LdapRealm) realm).getContextFactory()
              );
              if (auth != null) {
                roles = new HashSet<>(auth.getRoles());
              }
            } catch (NamingException e) {
              log.error("Can't fetch roles", e);
            }
            break;
          } else if (name.equals("org.apache.zeppelin.realm.ActiveDirectoryGroupRealm")) {
            allRoles = ((ActiveDirectoryGroupRealm) realm).getListRoles();
            break;
          }
        }
        if (allRoles != null) {
          Iterator it = allRoles.entrySet().iterator();
          while (it.hasNext()) {
            Map.Entry pair = (Map.Entry) it.next();
            if (subject.hasRole((String) pair.getKey())) {
              roles.add((String) pair.getKey());
            }
          }
        }
      }
    } catch (Exception ex){
      log.error("getRoles error: " , ex);
    }
    return roles;
  }

部署成功！