后台账号体系改造：接入t_admin_数据库账号与前端改密

变更项：
1. 新增 db/admin_account_db.py，提供 t_admin_accounts 表初始化、PBKDF2口令哈希、登录校验、登录信息回写与密码更新能力。
2. DashboardServer 启动时接入账号数据层，自动建表并把旧配置默认账号迁移为数据库账号种子。
3. 重构 auth 登录逻辑：优先走数据库账号鉴权，保留旧配置账号回退；新增 /api/auth/change_password 接口支持在线修改密码。
4. base.html 增加顶部修改密码入口与弹窗表单，前端可直接提交旧密码与新密码完成改密。
5. login.html 增强小屏适配：允许纵向滚动、768以下隐藏展示侧栏并优化输入区间距与字号，修复移动端登录体验。
6. 新增迁移脚本 db/scripts/migrations/20260423_add_admin_account_table.sql，便于独立数据库升级。

admin/dashboard/blueprints/auth.py

@@ -1,4 +1,4 @@
-from flask import Blueprint, render_template, request, redirect, url_for, session, current_app
+from flask import Blueprint, render_template, request, redirect, url_for, session, current_app, jsonify
 from functools import wraps
 from loguru import logger
 
@@ -22,13 +22,29 @@ def login_required(f):
 def login():
     error = None
     if request.method == 'POST':
-        username = request.form['username']
+        # 使用 strip 规避用户误输入首尾空格导致的误判。
-        password = request.form['password']
+        username = str(request.form.get('username', '') or '').strip()
+        password = str(request.form.get('password', '') or '')
 
         # 从应用上下文获取服务器实例，而不是从蓝图对象
         server = current_app.dashboard_server
+        admin_db = getattr(server, "admin_account_db", None)
 
-        if username == server.username and password == server.password:
+        # 优先使用数据库账号体系鉴权；若不可用则回退旧配置模式，保证兼容存量部署。
+        login_ok = False
+        if admin_db:
+            try:
+                login_ok = admin_db.verify_admin_password(username, password)
+                if login_ok:
+                    admin_db.mark_login_success(username, request.remote_addr or "")
+            except Exception as e:
+                logger.error(f"数据库账号登录校验异常，回退配置模式: {e}")
+                login_ok = False
+
+        if not login_ok:
+            login_ok = (username == server.username and password == server.password)
+
+        if login_ok:
             session['logged_in'] = True
             session['username'] = username  # 存储用户名到session
             logger.debug(f"Login successful. Session after login: {dict(session)}")
@@ -45,3 +61,56 @@ def logout():
     session.pop('logged_in', None)
     session.pop('username', None)  # 同时删除username
     return redirect(url_for('auth.login'))
+
+
+@auth_bp.route('/api/auth/change_password', methods=['POST'])
+@login_required
+def change_password():
+    """修改当前登录管理员密码。
+
+    前端请求参数：
+    {
+      "old_password": "旧密码",
+      "new_password": "新密码",
+      "confirm_password": "确认新密码"
+    }
+    """
+    server = current_app.dashboard_server
+    admin_db = getattr(server, "admin_account_db", None)
+    if not admin_db:
+        return jsonify({"success": False, "error": "账号数据库未初始化，无法修改密码"}), 500
+
+    payload = request.get_json(silent=True) or {}
+    old_password = str(payload.get("old_password", "") or "")
+    new_password = str(payload.get("new_password", "") or "")
+    confirm_password = str(payload.get("confirm_password", "") or "")
+    username = str(session.get("username", "") or "").strip()
+
+    if not username:
+        return jsonify({"success": False, "error": "会话失效，请重新登录"}), 401
+
+    if not old_password or not new_password or not confirm_password:
+        return jsonify({"success": False, "error": "请完整填写旧密码与新密码"}), 400
+
+    if new_password != confirm_password:
+        return jsonify({"success": False, "error": "两次输入的新密码不一致"}), 400
+
+    # 密码长度做基础约束，避免过弱口令。
+    if len(new_password) < 6:
+        return jsonify({"success": False, "error": "新密码长度不能少于6位"}), 400
+
+    if new_password == old_password:
+        return jsonify({"success": False, "error": "新密码不能与旧密码相同"}), 400
+
+    try:
+        if not admin_db.verify_admin_password(username, old_password):
+            return jsonify({"success": False, "error": "旧密码错误"}), 400
+
+        updated = admin_db.update_password(username, new_password)
+        if not updated:
+            return jsonify({"success": False, "error": "密码更新失败，请稍后重试"}), 500
+
+        return jsonify({"success": True, "message": "密码修改成功"})
+    except Exception as e:
+        logger.error(f"修改后台密码失败: username={username}, error={e}")
+        return jsonify({"success": False, "error": "密码修改失败，请检查日志"}), 500

admin/dashboard/server.py

@@ -11,6 +11,7 @@ from flask import Flask, send_from_directory
 from loguru import logger
 
 from db.contacts_db import ContactsDBOperator
+from db.admin_account_db import AdminAccountDBOperator
 from db.member_context_db import MemberContextDBOperator
 from db.message_storage import MessageStorageDB
 from db.stats_db import StatsDBOperator
@@ -46,6 +47,8 @@ class DashboardServer:
             self.contact_db: ContactsDBOperator = ContactsDBOperator(self.db_manager)
             self.member_context_db = MemberContextDBOperator(self.db_manager)
             self.task_db: TaskDBOperator = TaskDBOperator(self.db_manager)
+            # 后台管理员账号数据层：用于登录鉴权与修改密码。
+            self.admin_account_db = AdminAccountDBOperator(self.db_manager)
             self.system_job_db = robot_instance.system_job_db
             self.system_job_loader = robot_instance.system_job_loader
             self.plugin_schedule_db = robot_instance.plugin_schedule_db
@@ -63,6 +66,20 @@ class DashboardServer:
             self.member_context_service = getattr(self.member_context_plugin, "service", None)
 
             self.LOG.info("使用Robot实例的对象进行初始化")
+
+            # 初始化后台管理员账号表，并将旧配置中的默认账号平滑迁移进数据库。
+            try:
+                table_ok = self.admin_account_db.init_tables()
+                if not table_ok:
+                    self.LOG.warning("初始化后台账号表失败，将回退旧配置账号模式")
+                else:
+                    seed_ok = self.admin_account_db.ensure_default_admin(self.username, self.password, "系统管理员")
+                    if seed_ok:
+                        self.LOG.info("后台账号体系初始化完成（数据库账号模式已可用）")
+                    else:
+                        self.LOG.warning("后台账号种子初始化失败，请检查配置中的默认账号信息")
+            except Exception as e:
+                self.LOG.error(f"初始化后台账号体系失败，将回退旧配置账号模式: {e}")
         else:
             self.LOG.error("未提供Robot实例，Dashboard无法正常工作")
             raise ValueError("必须提供Robot实例")

admin/dashboard/templates/base.html

@@ -224,6 +224,18 @@
             transition: all .18s ease !important;
         }
 
+        .account-btn {
+            color: var(--text-soft) !important;
+            padding: 10px 14px !important;
+            border-radius: 999px !important;
+            transition: all .18s ease !important;
+        }
+
+        .account-btn:hover {
+            color: var(--primary) !important;
+            background: var(--primary-soft) !important;
+        }
+
         .logout-btn:hover {
             color: var(--primary) !important;
             background: var(--primary-soft) !important;
@@ -699,6 +711,13 @@
                 display: none;
             }
         }
+
+        .password-dialog-tip {
+            margin-top: 8px;
+            color: var(--text-faint);
+            font-size: 12px;
+            line-height: 1.7;
+        }
     </style>
 
     <link rel="stylesheet" href="/static/css/element-ui/theme-chalk/index.min.css">
@@ -741,7 +760,10 @@
                 </div>
                 <div class="user-pill">
                     <span class="user-dot"></span>
-                    <span>管理员已登录</span>
+                    <span>{{ session.get('username', '管理员') }} 已登录</span>
+                </div>
+                <el-button type="text" class="account-btn" @click="openPasswordDialog">
+                    <i class="el-icon-lock"></i> 修改密码
                 </div>
                 <el-button type="text" class="logout-btn" @click="logout">
                     <i class="el-icon-switch-button"></i> 退出
@@ -785,6 +807,35 @@
                 </div>
             </main>
         </div>
+
+        <el-dialog
+            title="修改后台登录密码"
+            :visible.sync="passwordDialogVisible"
+            width="460px"
+            :close-on-click-modal="false">
+            <el-form
+                ref="passwordFormRef"
+                :model="passwordForm"
+                :rules="passwordRules"
+                label-width="96px">
+                <el-form-item label="旧密码" prop="old_password">
+                    <el-input v-model="passwordForm.old_password" type="password" show-password autocomplete="off" placeholder="请输入当前密码"></el-input>
+                </el-form-item>
+                <el-form-item label="新密码" prop="new_password">
+                    <el-input v-model="passwordForm.new_password" type="password" show-password autocomplete="off" placeholder="至少6位"></el-input>
+                </el-form-item>
+                <el-form-item label="确认新密码" prop="confirm_password">
+                    <el-input v-model="passwordForm.confirm_password" type="password" show-password autocomplete="off" placeholder="请再次输入新密码"></el-input>
+                </el-form-item>
+            </el-form>
+            <div class="password-dialog-tip">
+                提示：修改成功后将立即生效，建议使用强密码（字母、数字、符号组合）。
+            </div>
+            <span slot="footer" class="dialog-footer">
+                <el-button @click="passwordDialogVisible = false">取消</el-button>
+                <el-button type="primary" :loading="passwordSubmitting" @click="submitPasswordChange">确认修改</el-button>
+            </span>
+        </el-dialog>
     </div>
 
 <script>
@@ -870,7 +921,37 @@
                 currentView: '1',
                 timeRange: '7',
                 showTimeRangeSelector: false,
-                navGroups: NAV_GROUPS
+                navGroups: NAV_GROUPS,
+                // 账号密码修改弹窗状态。
+                passwordDialogVisible: false,
+                passwordSubmitting: false,
+                passwordForm: {
+                    old_password: '',
+                    new_password: '',
+                    confirm_password: ''
+                },
+                passwordRules: {
+                    old_password: [
+                        { required: true, message: '请输入旧密码', trigger: 'blur' }
+                    ],
+                    new_password: [
+                        { required: true, message: '请输入新密码', trigger: 'blur' },
+                        { min: 6, message: '新密码长度至少6位', trigger: 'blur' }
+                    ],
+                    confirm_password: [
+                        { required: true, message: '请再次输入新密码', trigger: 'blur' },
+                        {
+                            validator: (rule, value, callback) => {
+                                if (value !== this.passwordForm.new_password) {
+                                    callback(new Error('两次输入的新密码不一致'));
+                                    return;
+                                }
+                                callback();
+                            },
+                            trigger: 'blur'
+                        }
+                    ]
+                }
             }
         },
         computed: {
@@ -948,6 +1029,49 @@
                 }).then(() => {
                     window.location.href = '/logout';
                 });
+            },
+            openPasswordDialog() {
+                // 打开弹窗前重置表单，避免上次输入残留。
+                this.passwordDialogVisible = true;
+                this.passwordSubmitting = false;
+                this.passwordForm = {
+                    old_password: '',
+                    new_password: '',
+                    confirm_password: ''
+                };
+                this.$nextTick(() => {
+                    if (this.$refs.passwordFormRef) {
+                        this.$refs.passwordFormRef.clearValidate();
+                    }
+                });
+            },
+            submitPasswordChange() {
+                if (!this.$refs.passwordFormRef) {
+                    return;
+                }
+                this.$refs.passwordFormRef.validate((valid) => {
+                    if (!valid) {
+                        return;
+                    }
+                    this.passwordSubmitting = true;
+                    axios.post('/api/auth/change_password', this.passwordForm)
+                        .then((response) => {
+                            const data = response.data || {};
+                            if (!data.success) {
+                                this.$message.error(data.error || '修改密码失败');
+                                return;
+                            }
+                            this.$message.success(data.message || '密码修改成功');
+                            this.passwordDialogVisible = false;
+                        })
+                        .catch((error) => {
+                            const errorMsg = error?.response?.data?.error || '修改密码失败，请稍后重试';
+                            this.$message.error(errorMsg);
+                        })
+                        .finally(() => {
+                            this.passwordSubmitting = false;
+                        });
+                });
             }
         }
     };

admin/dashboard/templates/login.html

@@ -36,7 +36,8 @@
             display: flex;
             align-items: center;
             justify-content: center;
-            overflow: hidden;
+            overflow-x: hidden;
+            overflow-y: auto;
         }
         .login-shell {
             width: min(1120px, calc(100vw - 48px));
@@ -200,12 +201,53 @@
             width: 8px; height: 8px; border-radius: 50%; background: #10b981; box-shadow: 0 0 0 4px rgba(16,185,129,0.12);
         }
         @media (max-width: 960px) {
-            .login-shell { grid-template-columns: 1fr; min-height: auto; }
+            body { align-items: flex-start; padding: 18px 14px; }
+            .login-shell { grid-template-columns: 1fr; min-height: auto; width: 100%; border-radius: 24px; }
             .login-showcase { padding: 34px 28px; }
             .hero-title { font-size: 34px; }
             .showcase-metrics { grid-template-columns: 1fr; }
             .login-panel { padding: 32px 24px; }
         }
+        @media (max-width: 768px) {
+            .login-shell {
+                box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
+                border-radius: 18px;
+                min-height: 0;
+            }
+            .login-showcase {
+                display: none;
+            }
+            .login-panel {
+                padding: 22px 16px;
+            }
+            .login-card {
+                max-width: none;
+            }
+            .panel-title {
+                font-size: 24px;
+            }
+            .panel-desc {
+                font-size: 13px;
+                margin-bottom: 18px;
+            }
+            .el-input__inner,
+            .login-button {
+                height: 44px;
+                border-radius: 12px;
+            }
+            .panel-footer {
+                flex-direction: column;
+                align-items: flex-start;
+                gap: 6px;
+            }
+        }
+        @media (max-width: 420px) {
+            body { padding: 12px; }
+            .login-shell { width: 100%; }
+            .login-panel { padding: 16px 12px; }
+            .panel-eyebrow { margin-bottom: 12px; }
+            .panel-title { font-size: 22px; }
+        }
     </style>
 </head>
 <body>

db/admin_account_db.py

@@ -0,0 +1,166 @@
+# -*- coding: utf-8 -*-
+"""
+后台管理员账号数据访问层。
+
+设计目标：
+1. 用数据库表承载后台账号，替代“固定配置文件账号密码”；
+2. 提供安全的密码散列存储与校验能力；
+3. 支持登录成功后的登录信息回写与在线修改密码。
+"""
+
+import base64
+import hashlib
+import hmac
+import secrets
+from typing import Any, Dict, Optional
+
+from db.base import BaseDBOperator
+
+
+class AdminAccountDBOperator(BaseDBOperator):
+    """后台管理员账号数据访问对象。"""
+
+    # 口令哈希算法版本前缀，便于将来平滑升级算法。
+    HASH_SCHEME = "pbkdf2_sha256"
+    # PBKDF2 迭代次数：在安全性与计算开销之间做平衡。
+    HASH_ITERATIONS = 150_000
+
+    def init_tables(self) -> bool:
+        """初始化后台管理员表。
+
+        表名使用 t_admin_ 前缀，满足后台账号体系命名约定。
+        """
+        sql = """
+        CREATE TABLE IF NOT EXISTS t_admin_accounts (
+            id BIGINT AUTO_INCREMENT PRIMARY KEY,
+            username VARCHAR(64) NOT NULL COMMENT '登录用户名',
+            password_hash VARCHAR(255) NOT NULL COMMENT '口令哈希',
+            display_name VARCHAR(64) NULL COMMENT '展示名称',
+            status TINYINT NOT NULL DEFAULT 1 COMMENT '状态：1启用，0禁用',
+            last_login_at DATETIME NULL COMMENT '最近登录时间',
+            last_login_ip VARCHAR(64) NULL COMMENT '最近登录IP',
+            create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+            update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+            UNIQUE KEY uk_admin_username (username)
+        ) COMMENT='后台管理员账号表'
+        """
+        return self.execute_update(sql)
+
+    def get_admin_by_username(self, username: str) -> Optional[Dict[str, Any]]:
+        """按用户名读取管理员信息。"""
+        return self.execute_query(
+            """
+            SELECT id, username, password_hash, display_name, status, last_login_at, last_login_ip
+            FROM t_admin_accounts
+            WHERE username = %s
+            LIMIT 1
+            """,
+            (str(username or "").strip(),),
+            fetch_one=True,
+        )
+
+    def ensure_default_admin(self, username: str, password: str, display_name: str = "系统管理员") -> bool:
+        """确保默认管理员存在。
+
+        行为约束：
+        1. 若用户名已存在，不覆盖既有密码；
+        2. 仅在“表里不存在该账号”时创建初始账号；
+        3. 方便从旧配置平滑迁移到数据库账号体系。
+        """
+        normalized_username = str(username or "").strip()
+        normalized_password = str(password or "").strip()
+        if not normalized_username or not normalized_password:
+            return False
+
+        existing = self.get_admin_by_username(normalized_username)
+        if existing:
+            return True
+
+        password_hash = self.hash_password(normalized_password)
+        return self.execute_update(
+            """
+            INSERT INTO t_admin_accounts (username, password_hash, display_name, status)
+            VALUES (%s, %s, %s, 1)
+            """,
+            (normalized_username, password_hash, str(display_name or "").strip() or normalized_username),
+        )
+
+    def verify_admin_password(self, username: str, password: str) -> bool:
+        """校验账号口令是否正确。"""
+        row = self.get_admin_by_username(username)
+        if not row:
+            return False
+        if int(row.get("status") or 0) != 1:
+            return False
+        password_hash = str(row.get("password_hash") or "")
+        return self.verify_password(password, password_hash)
+
+    def mark_login_success(self, username: str, login_ip: str = "") -> bool:
+        """记录登录成功信息。"""
+        return self.execute_update(
+            """
+            UPDATE t_admin_accounts
+            SET last_login_at = NOW(),
+                last_login_ip = %s
+            WHERE username = %s
+            """,
+            (str(login_ip or "").strip(), str(username or "").strip()),
+        )
+
+    def update_password(self, username: str, new_password: str) -> bool:
+        """更新指定用户口令。"""
+        password_hash = self.hash_password(new_password)
+        return self.execute_update(
+            """
+            UPDATE t_admin_accounts
+            SET password_hash = %s
+            WHERE username = %s
+              AND status = 1
+            """,
+            (password_hash, str(username or "").strip()),
+        )
+
+    @classmethod
+    def hash_password(cls, raw_password: str) -> str:
+        """生成口令哈希。
+
+        存储格式：
+        pbkdf2_sha256$迭代次数$盐(HEX)$哈希(base64)
+        """
+        password_text = str(raw_password or "")
+        salt_bytes = secrets.token_bytes(16)
+        digest = hashlib.pbkdf2_hmac(
+            "sha256",
+            password_text.encode("utf-8"),
+            salt_bytes,
+            cls.HASH_ITERATIONS,
+        )
+        salt_hex = salt_bytes.hex()
+        digest_b64 = base64.b64encode(digest).decode("utf-8")
+        return f"{cls.HASH_SCHEME}${cls.HASH_ITERATIONS}${salt_hex}${digest_b64}"
+
+    @classmethod
+    def verify_password(cls, raw_password: str, stored_hash: str) -> bool:
+        """校验口令哈希。
+
+        安全细节：
+        1. 使用 hmac.compare_digest，避免时序侧信道问题；
+        2. 对格式异常统一返回 False，避免抛错打断登录流程。
+        """
+        try:
+            scheme, iterations_text, salt_hex, digest_b64 = str(stored_hash or "").split("$", 3)
+            if scheme != cls.HASH_SCHEME:
+                return False
+            iterations = int(iterations_text)
+            salt_bytes = bytes.fromhex(salt_hex)
+            expected_digest = base64.b64decode(digest_b64.encode("utf-8"))
+            actual_digest = hashlib.pbkdf2_hmac(
+                "sha256",
+                str(raw_password or "").encode("utf-8"),
+                salt_bytes,
+                iterations,
+            )
+            return hmac.compare_digest(actual_digest, expected_digest)
+        except Exception:
+            return False
+

db/scripts/migrations/20260423_add_admin_account_table.sql

@@ -0,0 +1,19 @@
+-- 后台管理员账号体系：数据库账号表
+-- 说明：
+-- 1. 使用 t_admin_ 前缀，便于后台管理相关表快速定位；
+-- 2. 密码字段保存的是哈希值（非明文）；
+-- 3. status 可用于后续封禁/停用后台账号。
+
+CREATE TABLE IF NOT EXISTS message_archive.t_admin_accounts (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    username VARCHAR(64) NOT NULL COMMENT '登录用户名',
+    password_hash VARCHAR(255) NOT NULL COMMENT '口令哈希',
+    display_name VARCHAR(64) NULL COMMENT '展示名称',
+    status TINYINT NOT NULL DEFAULT 1 COMMENT '状态：1启用，0禁用',
+    last_login_at DATETIME NULL COMMENT '最近登录时间',
+    last_login_ip VARCHAR(64) NULL COMMENT '最近登录IP',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    UNIQUE KEY uk_admin_username (username)
+) COMMENT='后台管理员账号表';
+