feat: add pseudonymous users and question visibility control

.vscode/settings.json

@@ -4,6 +4,18 @@
   ],
   "explorer.autoReveal": "focusNoScroll",
   "cSpell.words": [
-    "grecaptcha"
+    "activityqueue",
+    "answercommon",
+    "collectioncommon",
+    "errorlist",
+    "grecaptcha",
+    "metacommon",
+    "noticequeue",
+    "questioncommon",
+    "siteinfo",
+    "tagcommon",
+    "tagerr",
+    "taglist",
+    "usercommon"
   ]
 }

i18n/en_US.yaml

@@ -1323,6 +1323,7 @@ ui:
       notification: Notifications
       account: Account
       interface: Interface
+      anonymity: Anonymity
     profile:
       heading: Profile
       btn_name: Save
@@ -1365,6 +1366,19 @@ ui:
       all_new_question_for_following_tags:
         label: All new questions for following tags
         description: Get notified of new questions for following tags.
+    anonymity:
+      heading: Pseudo-Anonymity
+      intro: >-
+        When enabled, your questions and answers will be published without
+        displaying your real username. An alias (pseudonym) will be used instead,
+        your user ID will be hidden in API responses, and links to your author
+        profile will be disabled.
+      turn_on: Turn on
+      enabled:
+        label: Enable pseudo-anonymity
+        description: >-
+          Publish questions and answers without displaying your real user data.
+          Uses an alias instead of your username.
     account:
       heading: Account
       change_email_btn: Change email
@@ -2482,5 +2496,3 @@ ui:
     copy: Copy to clipboard
     copied: Copied
     external_content_warning: External images/media are not displayed.
-
-

internal/controller/user_controller.go

@@ -35,6 +35,7 @@ import (
 	"github.com/apache/answer/internal/service/content"
 	"github.com/apache/answer/internal/service/export"
 	"github.com/apache/answer/internal/service/siteinfo_common"
+	"github.com/apache/answer/internal/service/user_anonymity_config"
 	"github.com/apache/answer/internal/service/user_notification_config"
 	"github.com/apache/answer/pkg/checker"
 	"github.com/gin-gonic/gin"
@@ -50,6 +51,7 @@ type UserController struct {
 	emailService                  *export.EmailService
 	siteInfoCommonService         siteinfo_common.SiteInfoCommonService
 	userNotificationConfigService *user_notification_config.UserNotificationConfigService
+	userAnonymityConfigService    *user_anonymity_config.UserAnonymityConfigService
 }
 
 // NewUserController new controller
@@ -60,6 +62,7 @@ func NewUserController(
 	emailService *export.EmailService,
 	siteInfoCommonService siteinfo_common.SiteInfoCommonService,
 	userNotificationConfigService *user_notification_config.UserNotificationConfigService,
+	userAnonymityConfigService *user_anonymity_config.UserAnonymityConfigService,
 ) *UserController {
 	return &UserController{
 		authService:                   authService,
@@ -68,6 +71,7 @@ func NewUserController(
 		emailService:                  emailService,
 		siteInfoCommonService:         siteInfoCommonService,
 		userNotificationConfigService: userNotificationConfigService,
+		userAnonymityConfigService:    userAnonymityConfigService,
 	}
 }
 
@@ -547,6 +551,42 @@ func (uc *UserController) UpdateUserNotificationConfig(ctx *gin.Context) {
 	handler.HandleResponse(ctx, err, nil)
 }
 
+// GetUserAnonymityConfig get user's anonymity config
+// @Summary get user's anonymity config
+// @Description get user's anonymity config
+// @Tags User
+// @Accept json
+// @Produce json
+// @Security ApiKeyAuth
+// @Success 200 {object} handler.RespBody{data=schema.GetUserAnonymityConfigResp}
+// @Router /answer/api/v1/user/anonymity/config [post]
+func (uc *UserController) GetUserAnonymityConfig(ctx *gin.Context) {
+	userID := middleware.GetLoginUserIDFromContext(ctx)
+	resp, err := uc.userAnonymityConfigService.GetUserAnonymityConfig(ctx, userID)
+	handler.HandleResponse(ctx, err, resp)
+}
+
+// UpdateUserAnonymityConfig update user's anonymity config
+// @Summary update user's anonymity config
+// @Description update user's anonymity config
+// @Tags User
+// @Accept json
+// @Produce json
+// @Security ApiKeyAuth
+// @Param data body schema.UpdateUserAnonymityConfigReq true "UpdateUserAnonymityConfigReq"
+// @Success 200 {object} handler.RespBody{}
+// @Router /answer/api/v1/user/anonymity/config [put]
+func (uc *UserController) UpdateUserAnonymityConfig(ctx *gin.Context) {
+	req := &schema.UpdateUserAnonymityConfigReq{}
+	if handler.BindAndCheck(ctx, req) {
+		return
+	}
+
+	req.UserID = middleware.GetLoginUserIDFromContext(ctx)
+	err := uc.userAnonymityConfigService.UpdateUserAnonymityConfig(ctx, req)
+	handler.HandleResponse(ctx, err, nil)
+}
+
 // UserChangeEmailSendCode send email to the user email then change their email
 // @Summary send email to the user email then change their email
 // @Description send email to the user email then change their email

internal/entity/fake_username_entity.go

@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 entity
+
+import "time"
+
+// FakeUsername fake username
+type FakeUsername struct {
+	ID         string    `xorm:"pk autoincr BIGINT(20) id"`
+	CreatedAt  time.Time `xorm:"created TIMESTAMP created_at"`
+	UpdatedAt  time.Time `xorm:"updated TIMESTAMP updated_at"`
+	UserID     string    `xorm:"not null default 0 BIGINT(20) user_id"`
+	QuestionID string    `xorm:"not null default 0 BIGINT(20) question_id"`
+	FakeName   string    `xorm:"not null VARCHAR(50) fake_name"`
+}
+
+// TableName fake username table name
+func (FakeUsername) TableName() string {
+	return "fake_username"
+}

internal/entity/question_entity.go

@@ -32,6 +32,10 @@ const (
 	QuestionPin             = 2
 	QuestionShow            = 1
 	QuestionHide            = 2
+
+	QuestionPrivateLevelPublic        = "public"
+	QuestionPrivateLevelAuthenticated = "authenticated"
+	QuestionPrivateLevelPrivate       = "private"
 )
 
 var AdminQuestionSearchStatus = map[string]int{
@@ -74,6 +78,7 @@ type Question struct {
 	PostUpdateTime   time.Time `xorm:"post_update_time TIMESTAMP"`
 	RevisionID       string    `xorm:"not null default 0 BIGINT(20) revision_id"`
 	LinkedCount      int       `xorm:"not null default 0 INT(11) linked_count"`
+	PrivateLevel     string    `xorm:"not null default 'public' VARCHAR(20) private_level"`
 }
 
 // TableName question table name

internal/entity/user_anonymity_config_entity.go

@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 entity
+
+import "time"
+
+type UserAnonymityConfig struct {
+	ID        string    `xorm:"not null pk autoincr BIGINT(20) id"`
+	CreatedAt time.Time `xorm:"created TIMESTAMP created_at"`
+	UpdatedAt time.Time `xorm:"updated TIMESTAMP updated_at"`
+	UserID    string    `xorm:"not null default 0 BIGINT(20) INDEX UNIQUE user_id"`
+	Enabled   bool      `xorm:"not null default false BOOL enabled"`
+}
+
+func (UserAnonymityConfig) TableName() string {
+	return "user_anonymity_config"
+}

internal/migrations/init_data.go

@@ -79,6 +79,8 @@ var (
 		&entity.APIKey{},
 		&entity.AIConversation{},
 		&entity.AIConversationRecord{},
+		&entity.FakeUsername{},
+		&entity.UserAnonymityConfig{},
 	}
 
 	roles = []*entity.Role{