feature: implement password policies to avoid weak passwords

CHANGES.md

@@ -16,6 +16,7 @@ Apollo 1.10.0
 * [refactor: let open api more easier to use and development](https://github.com/apolloconfig/apollo/pull/3943)
 * [feat(scripts): use bash to call openapi](https://github.com/apolloconfig/apollo/pull/3980)
 * [Support search by item](https://github.com/apolloconfig/apollo/pull/3977)
+* [Implement password policies to avoid weak passwords](https://github.com/apolloconfig/apollo/pull/4008)
 
 ------------------
 All issues and pull requests are [here](https://github.com/ctripcorp/apollo/milestone/8?closed=1)

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/controller/UserInfoController.java

@@ -24,6 +24,12 @@
 import com.ctrip.framework.apollo.portal.spi.UserInfoHolder;
 import com.ctrip.framework.apollo.portal.spi.UserService;
 import com.ctrip.framework.apollo.portal.spi.springsecurity.SpringSecurityUserService;
+import com.ctrip.framework.apollo.portal.util.checker.AuthUserPasswordChecker;
+import com.ctrip.framework.apollo.portal.util.checker.CheckResult;
+import java.io.IOException;
+import java.util.List;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -32,41 +38,42 @@
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.util.List;
-
 @RestController
 public class UserInfoController {
 
   private final UserInfoHolder userInfoHolder;
   private final LogoutHandler logoutHandler;
   private final UserService userService;
+  private final AuthUserPasswordChecker passwordChecker;
 
   public UserInfoController(
       final UserInfoHolder userInfoHolder,
       final LogoutHandler logoutHandler,
-      final UserService userService) {
+      final UserService userService,
+      final AuthUserPasswordChecker passwordChecker) {
     this.userInfoHolder = userInfoHolder;
     this.logoutHandler = logoutHandler;
     this.userService = userService;
+    this.passwordChecker = passwordChecker;
   }
 
-
   @PreAuthorize(value = "@permissionValidator.isSuperAdmin()")
   @PostMapping("/users")
   public void createOrUpdateUser(@RequestBody UserPO user) {
     if (StringUtils.isContainEmpty(user.getUsername(), user.getPassword())) {
       throw new BadRequestException("Username and password can not be empty.");
     }
 
+    CheckResult pwdCheckRes = passwordChecker.checkWeakPassword(user.getPassword());
+    if (!pwdCheckRes.isSuccess()) {
+      throw new BadRequestException(pwdCheckRes.getMessage());
+    }
+
     if (userService instanceof SpringSecurityUserService) {
       ((SpringSecurityUserService) userService).createOrUpdate(user);
     } else {
       throw new UnsupportedOperationException("Create or update user operation is unsupported");
     }
-
   }
 
   @GetMapping("/user")
@@ -81,8 +88,8 @@ public void logout(HttpServletRequest request, HttpServletResponse response) thr
 
   @GetMapping("/users")
   public List<UserInfo> searchUsersByKeyword(@RequestParam(value = "keyword") String keyword,
-                                             @RequestParam(value = "offset", defaultValue = "0") int offset,
-                                             @RequestParam(value = "limit", defaultValue = "10") int limit) {
+      @RequestParam(value = "offset", defaultValue = "0") int offset,
+      @RequestParam(value = "limit", defaultValue = "10") int limit) {
     return userService.searchUsers(keyword, offset, limit);
   }
 
@@ -91,5 +98,4 @@ public UserInfo getUserByUserId(@PathVariable String userId) {
     return userService.findByUserId(userId);
   }
 
-
 }

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/util/checker/AuthUserPasswordChecker.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2021 Apollo Authors
+ *
+ * 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.ctrip.framework.apollo.portal.util.checker;
+
+import com.google.common.base.Strings;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+import org.springframework.stereotype.Component;
+
+@Component
+public class AuthUserPasswordChecker implements UserPasswordChecker {
+
+  private static final Pattern PWD_PATTERN = Pattern
+      .compile("^(?=.*[0-9].*)(?=.*[a-zA-Z].*).{8,20}$");
+
+  private static final List<String> LIST_OF_CODE_FRAGMENT = Arrays.asList(
+      "111", "222", "333", "444", "555", "666", "777", "888", "999", "000",
+      "001122", "112233", "223344", "334455", "445566", "556677", "667788", "778899", "889900",
+      "009988", "998877", "887766", "776655", "665544", "554433", "443322", "332211", "221100",
+      "0123", "1234", "2345", "3456", "4567", "5678", "6789", "7890",
+      "0987", "9876", "8765", "7654", "6543", "5432", "4321", "3210",
+      "1q2w", "2w3e", "3e4r", "5t6y", "abcd", "qwer", "asdf", "zxcv"
+  );
+
+  @Override
+  public CheckResult checkWeakPassword(String password) {
+    if (!PWD_PATTERN.matcher(password).matches()) {
+      return new CheckResult(Boolean.FALSE,
+          "Password needs a number and letter and between 8~20 characters");
+    }
+    if (isCommonlyUsed(password)) {
+      return new CheckResult(Boolean.FALSE,
+          "Passwords cannot be consecutive, regular letters or numbers. And cannot be commonly used. "
+              + "e.g: abcd1234, 1234qwer, 1q2w3e4r, 1234asdfghjk, ...");
+    }
+    return new CheckResult(Boolean.TRUE, null);
+  }
+
+  /**
+   * @return The password contains code fragment or is blank.
+   */
+  private boolean isCommonlyUsed(String password) {
+    if (Strings.isNullOrEmpty(password)) {
+      return true;
+    }
+    for (String s : LIST_OF_CODE_FRAGMENT) {
+      if (password.toLowerCase().contains(s)) {
+        return true;
+      }
+    }
+    return false;
+  }
+}

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/util/checker/CheckResult.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2021 Apollo Authors
+ *
+ * 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.ctrip.framework.apollo.portal.util.checker;
+
+public class CheckResult {
+
+  private final boolean success;
+  private final String message;
+
+  public CheckResult(boolean success, String message) {
+    this.success = success;
+    this.message = message;
+  }
+
+  public boolean isSuccess() {
+    return success;
+  }
+
+  public String getMessage() {
+    return message;
+  }
+}

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/util/checker/UserPasswordChecker.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2021 Apollo Authors
+ *
+ * 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.ctrip.framework.apollo.portal.util.checker;
+
+public interface UserPasswordChecker {
+
+  CheckResult checkWeakPassword(String password);
+}

apollo-portal/src/test/java/com/ctrip/framework/apollo/portal/controller/UserInfoControllerTest.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2021 Apollo Authors
+ *
+ * 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.ctrip.framework.apollo.portal.controller;
+
+import com.ctrip.framework.apollo.common.exception.BadRequestException;
+import com.ctrip.framework.apollo.portal.entity.po.UserPO;
+import com.ctrip.framework.apollo.portal.spi.springsecurity.SpringSecurityUserService;
+import com.ctrip.framework.apollo.portal.util.checker.AuthUserPasswordChecker;
+import com.ctrip.framework.apollo.portal.util.checker.CheckResult;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+
+@RunWith(MockitoJUnitRunner.class)
+public class UserInfoControllerTest {
+
+  @InjectMocks
+  private UserInfoController userInfoController;
+  @Mock
+  private SpringSecurityUserService userService;
+  @Mock
+  private AuthUserPasswordChecker userPasswordChecker;
+
+  @Test
+  public void testCreateOrUpdateUser() {
+    UserPO user = new UserPO();
+    user.setUsername("username");
+    user.setPassword("password");
+
+    Mockito.when(userPasswordChecker.checkWeakPassword(Mockito.anyString()))
+        .thenReturn(new CheckResult(Boolean.TRUE, ""));
+
+    userInfoController.createOrUpdateUser(user);
+  }
+
+  @Test(expected = BadRequestException.class)
+  public void testCreateOrUpdateUserFailed() {
+    UserPO user = new UserPO();
+    user.setUsername("username");
+    user.setPassword("password");
+
+    String msg = "fake error message";
+
+    Mockito.when(userPasswordChecker.checkWeakPassword(Mockito.anyString()))
+        .thenReturn(new CheckResult(Boolean.FALSE, msg));
+
+    try {
+      userInfoController.createOrUpdateUser(user);
+    } catch (BadRequestException e) {
+      Assert.assertEquals(msg, e.getMessage());
+      throw e;
+    }
+  }
+
+}

apollo-portal/src/test/java/com/ctrip/framework/apollo/portal/util/AuthUserPasswordCheckerTest.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2021 Apollo Authors
+ *
+ * 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.ctrip.framework.apollo.portal.util;
+
+import com.ctrip.framework.apollo.portal.util.checker.AuthUserPasswordChecker;
+import com.ctrip.framework.apollo.portal.util.checker.CheckResult;
+import java.util.Arrays;
+import java.util.List;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class AuthUserPasswordCheckerTest {
+
+  private AuthUserPasswordChecker checker;
+
+  @Before
+  public void setup() {
+    checker = new AuthUserPasswordChecker();
+  }
+
+  @Test
+  public void testRegexMatch() {
+    List<String> unMatchList = Arrays.asList(
+        "11111111",
+        "oibjdiel",
+        "oso87b6",
+        "0vb9xibowkd8bz9dsxbef"
+    );
+    String exceptedErrMsg = "Password needs a number and letter and between 8~20 characters";
+
+    for (String p : unMatchList) {
+      CheckResult res = checker.checkWeakPassword(p);
+      Assert.assertFalse(res.isSuccess());
+      Assert.assertEquals(exceptedErrMsg, res.getMessage());
+    }
+
+    List<String> matchList = Arrays.asList(
+        "pziv0g87",
+        "8f7zjpf8sci93",
+        "Upz4jF8u2yjV3wn8zp6c"
+    );
+
+    for (String p : matchList) {
+      CheckResult res = checker.checkWeakPassword(p);
+      Assert.assertTrue(res.isSuccess());
+    }
+  }
+
+  @Test
+  public void testIsWeakPassword() {
+    List<String> weakPwdList = Arrays.asList(
+        "a1234567", "b98765432", "c11111111", "d2222222", "e3333333", "f4444444",
+        "g5555555", "h6666666", "i7777777", "j8888888", "k9999999", "l0000000",
+        "1q2w3e4r", "qwertyuiop1", "asdfghjkl2", "asdfghjkl3", "abcd1234"
+    );
+    String exceptedErrMsg =
+        "Passwords cannot be consecutive, regular letters or numbers. And cannot be commonly used.";
+
+    for (String p : weakPwdList) {
+      CheckResult res = checker.checkWeakPassword(p);
+      Assert.assertFalse(res.isSuccess());
+      Assert.assertTrue(res.getMessage().startsWith(exceptedErrMsg));
+    }
+
+    CheckResult res = checker.checkWeakPassword("1s39gvisk");
+    Assert.assertTrue(res.isSuccess());
+  }
+
+}