java - org.apache.zookeeper.KeeperException$InvalidACLException : KeeperErrorCode = InvalidACL for/f

Question

我正在使用zookeeper 3.4.6，我使用acl来通过zookeeper服务器进行身份验证。我有自己的实现 ZooKeeperSupport，它支持创建、删除和验证 znode。我正在尝试使用 acl 创建一个 znode，但在这部分代码 zooKeeperSupport.create("/f", DATA_F);

我正在做这个项目zookeeper-acl-sample ，但我想使用 digest 身份验证，因为使用 user 和 password

BasicMockZookeeperSecurity

public class BasicMockZookeeperSecurity {

@Resource (name = "zooKeeperSupportFactory")
protected ZooKeeperSupportFactory zooKeeperSupportFactory;

public static final byte[] DATA_F = "data for znode /f".getBytes(Charsets.UTF_8);
public static final byte[] DATA_B = "data for znode /b".getBytes(Charsets.UTF_8);

@Before
public void setup() throws Exception {

    System.setProperty("curator-dont-log-connection-problems", "true");
    System.setProperty("zookeeper.security.user", "user");
    System.setProperty("zookeeper.security.password", "pass");
    System.setProperty("zookeeper.authProvider.1","com.e.product.fraud.common.zookeeper.security.CustomUserAuthenticationProvider");

    zooKeeperSupport = CuratorFrameworkFactory.builder().connectString(connectionPath).retryPolicy(retryPolicy).aclProvider(new ACLProvider()).build();
    zooKeeperSupport.create("/f", DATA_F);
    zooKeeperSupport.create("/b", DATA_B);
}

}

Zookeeper安全测试

public class ZookeeperSecurtyTest extends BasicMockZookeeperSecurity {

@Test
public void securityTester() throws Exception {

    final CuratorFramework curatorFramework = CuratorFrameworkFactory.builder().connectString(connectionPath).retryPolicy(retryPolicy).aclProvider(new ACLProvider()).authorization(ZookeeperSecurityUtil.getCredentialsFromSystemProperties()).build();
    curatorFramework.getData().forPath("/f");

}

@After
public void teardown() throws Exception {
    System.clearProperty("zookeeeper.authProvider.1");
    System.clearProperty("zookeeper.security.user");
    System.clearProperty("zookeeper.security.password");
}

}

ZooKeeper支持

@SuppressWarnings ("unchecked")
public class ZooKeeperSupport implements AutoCloseable {

private CuratorFramework curatorClient;

private Builder builder;

public ZooKeeperSupport(final Builder builder) {
    this.setBuilder(builder);
    this.curatorClient = builder.build();
}

public <T> T getData(final String path) throws Exception {
    startConnection();

    return (T) curatorClient.getData().forPath(path);
}

public <T> T create(final String path, final byte[] data) throws Exception {
    startConnection();

    return (T) curatorClient.create().forPath(path, data);
}

public <T> T create(final String path) throws Exception {
    startConnection();

    return (T) curatorClient.create().forPath(path);
}

public <T> T delete(final String path) throws Exception {
    startConnection();

    return (T) curatorClient.delete().forPath(path);
}

public boolean exists(final String path) throws Exception {
    startConnection();

    final Stat stat = curatorClient.checkExists().forPath(StringUtils.trim(path));

    return stat != null ? true : false;
}

public void startConnection() {
    if (curatorClient.getState() == CuratorFrameworkState.LATENT) {
        curatorClient.start();
    }
}

public List<String> getChildrenNames(final String path) throws Exception {
    startConnection();

    return curatorClient.getChildren().forPath(path);
}

@Override
public void close() throws Exception {
    curatorClient.close();
    curatorClient = null;
}

public Builder getBuilder() {
    return builder;
}

public void setBuilder(final Builder builder) {
    this.builder = builder;
}

public CuratorFramework getCuratorClient() {
    return curatorClient;
}

public void setCuratorClient(final CuratorFramework curatorClient) {
    this.curatorClient = curatorClient;
}

}

ZookeeperSecurityUtil

public class ZookeeperSecurityUtil {

public static List<AuthInfo> getCredentialsFromSystemProperties() {
    final List<AuthInfo> authInfo = new ArrayList<>();

    final String user = System.getProperty("zookeeper.security.user");
    final String password = System.getProperty("zookeeper.security.password");

    authInfo.add(new AuthInfo("digest", new String(user + ":" + password).getBytes(Charsets.UTF_8)));

    return authInfo;

}
}

CustomUserAuthenticationProvider

public class CustomUserAuthenticationProvider implements AuthenticationProvider {

@Override
public String getScheme() {
    return "digest";
}

@Override
public Code handleAuthentication(final ServerCnxn cnxn, final byte[] authData) {
    final String userName = new String(authData, Charsets.UTF_8);
    if (StringUtils.isNotBlank(userName)) {
        cnxn.addAuthInfo(new Id(getScheme(), userName));
        return Code.OK;
    }
    return Code.AUTHFAILED;
}

@Override
public boolean isAuthenticated() {
    return true;
}

@Override
public boolean isValid(final String arg0) {
    return true;
}

@Override
public boolean matches(final String id, final String aclExpr) {
    if (Strings.isNullOrEmpty(id) || Strings.isNullOrEmpty(aclExpr)) {
        return false;
    }
    return id.charAt(0) == aclExpr.charAt(0);
}

}

ACLProvider

public class ACLProvider implements org.apache.curator.framework.api.ACLProvider {

@Override
public List<ACL> getAclForPath(final String path) {

    final String firstLetter = String.valueOf(path.charAt(1));
    final Id FIRST_USER_LETTER = new Id("digest", firstLetter);

    final ACL acl = new ACL(Perms.ALL, FIRST_USER_LETTER);
    return Collections.singletonList(acl);
}

@Override
public List<ACL> getDefaultAcl() {
    throw new NotImplementedException();
}

}

堆栈

org.apache.zookeeper.KeeperException$InvalidACLException: KeeperErrorCode = InvalidACL for /f
at org.apache.zookeeper.KeeperException.create(KeeperException.java:121)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:696)
at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:679)
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:676)
at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:453)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:443)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44)
at com.equifax.product.fraud.common.zookeeper.support.ZooKeeperSupport.create(ZooKeeperSupport.java:35)
at com.equifax.product.fraud.common.zookeeper.authentication.BasicMockZookeeperSecurity.setup(BasicMockZookeeperSecurity.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:224)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

出了什么问题？

Answer 1

我已经找到解决办法了。基本上问题是使用digest方案创建带有密码的用户的方法。根据zookeeper文档，摘要身份验证使用base64编码SHA1中的ID和密码，显然当您将使用添加到ACL时，ACL不会自动执行此操作，因此我必须自己完成。

public class ZookeeperSecurityUtil {

private static final String SHA1 = "SHA1";
private static final String COLON = ":";
private static final String DIGEST_SCHEME = "digest";

public static List<AuthInfo> getCredentialsFromSystemProperties() {
    final List<AuthInfo> authInfo = new ArrayList<>();

    final String user = System.getProperty("zookeeper.security.user");
    final String password = System.getProperty("zookeeper.security.password");

    authInfo.add(new AuthInfo(DIGEST_SCHEME, new String(user + COLON + password).getBytes(Charsets.UTF_8)));

    return authInfo;
}
public static String generateDigest(final String idPassword) throws NoSuchAlgorithmException {
    final String parts[] = idPassword.split(COLON, 2);
    final byte digest[] = MessageDigest.getInstance(SHA1).digest(idPassword.getBytes());
    return parts[0] + COLON + base64Encode(digest);
}
private static String base64Encode(final byte byteDigest[]) {

    return new String(Base64.getEncoder().encode(byteDigest));
}
}

和

public class ACLProvider implements org.apache.curator.framework.api.ACLProvider {

private static final String ZK_DIGEST_SCHEME = "digest";

@Override
public List<ACL> getAclForPath(final String path) {

    final String user = System.getProperty("zookeeper.security.user");
    final String password = System.getProperty("zookeeper.security.password");

    Id zkId = null;
    try {
        zkId = new Id(ZK_DIGEST_SCHEME, ZookeeperSecurityUtil.generateDigest(user + ":" + password));
    } catch(final NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    final ACL acl = new ACL(Perms.ALL, zkId);
    return Collections.singletonList(acl);
}

@Override
public List<ACL> getDefaultAcl() {
    throw new NotImplementedException();
}

}