fix: 修复邮箱绑定验证错误及多项改进

1. 修复email_verified字段缺失导致的500错误
2. 将邮件主题从"知识管理平台"改为"自动化学习"
3. 增大验证码字体（28->42）和图片尺寸（120x40->160x60）

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app.py

@@ -1045,34 +1045,34 @@ def generate_captcha():
         from PIL import Image, ImageDraw, ImageFont
         import io
 
-        # 创建图片
+        # 创建图片 - 增大尺寸以便显示更大的字体
-        width, height = 120, 40
+        width, height = 160, 60
         image = Image.new('RGB', (width, height), color=(255, 255, 255))
         draw = ImageDraw.Draw(image)
 
         # 添加干扰线
-        for _ in range(5):
+        for _ in range(6):
             x1 = random.randint(0, width)
             y1 = random.randint(0, height)
             x2 = random.randint(0, width)
             y2 = random.randint(0, height)
-            draw.line([(x1, y1), (x2, y2)], fill=(random.randint(0, 200), random.randint(0, 200), random.randint(0, 200)))
+            draw.line([(x1, y1), (x2, y2)], fill=(random.randint(0, 200), random.randint(0, 200), random.randint(0, 200)), width=1)
 
         # 添加干扰点
-        for _ in range(50):
+        for _ in range(80):
             x = random.randint(0, width)
             y = random.randint(0, height)
             draw.point((x, y), fill=(random.randint(0, 200), random.randint(0, 200), random.randint(0, 200)))
 
-        # 绘制验证码文字
+        # 绘制验证码文字 - 增大字体
         try:
-            font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 28)
+            font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 42)
         except:
             font = ImageFont.load_default()
 
         for i, char in enumerate(code):
-            x = 10 + i * 25 + random.randint(-3, 3)
+            x = 12 + i * 35 + random.randint(-3, 3)
-            y = random.randint(2, 8)
+            y = random.randint(5, 12)
             color = (random.randint(0, 150), random.randint(0, 150), random.randint(0, 150))
             draw.text((x, y), char, font=font, fill=color)
 
@@ -2169,7 +2169,8 @@ def run_task(user_id, account_id, browse_type, enable_screenshot=True, source="m
                             # 发送任务完成邮件通知（不截图时在此发送）
                             try:
                                 user_info = database.get_user_by_id(user_id)
-                                if user_info and user_info.get('email'):
+                                # 检查用户是否开启了邮件通知
+                                if user_info and user_info.get('email') and database.get_user_email_notify(user_id):
                                     account_name = account.remark if account.remark else account.username
                                     email_service.send_task_complete_email_async(
                                         user_id=user_id,
@@ -2538,7 +2539,8 @@ def take_screenshot_for_account(user_id, account_id, browse_type="应读", sourc
                 # 发送任务完成邮件通知
                 try:
                     user_info = database.get_user_by_id(user_id)
-                    if user_info and user_info.get('email'):
+                    # 检查用户是否开启了邮件通知
+                    if user_info and user_info.get('email') and database.get_user_email_notify(user_id):
                         screenshot_path = None
                         if result and result.get('success') and result.get('filename'):
                             screenshot_path = os.path.join(SCREENSHOTS_DIR, result['filename'])
@@ -2967,6 +2969,27 @@ def unbind_user_email():
         return jsonify({"error": "解绑失败"}), 500
 
 
+@app.route('/api/user/email-notify', methods=['GET'])
+@login_required
+def get_user_email_notify():
+    """获取用户邮件通知偏好"""
+    enabled = database.get_user_email_notify(current_user.id)
+    return jsonify({"enabled": enabled})
+
+
+@app.route('/api/user/email-notify', methods=['POST'])
+@login_required
+def update_user_email_notify():
+    """更新用户邮件通知偏好"""
+    data = request.get_json()
+    enabled = data.get('enabled', True)
+
+    if database.update_user_email_notify(current_user.id, enabled):
+        return jsonify({"success": True})
+    else:
+        return jsonify({"error": "更新失败"}), 500
+
+
 @app.route('/api/run_stats', methods=['GET'])
 @login_required
 def get_run_stats():

database.py

@@ -834,6 +834,13 @@ def update_user_email(user_id, email, verified=False):
     """更新用户邮箱"""
     with db_pool.get_db() as conn:
         cursor = conn.cursor()
+        # 先检查email_verified字段是否存在，不存在则添加
+        try:
+            cursor.execute('SELECT email_verified FROM users LIMIT 1')
+        except:
+            cursor.execute('ALTER TABLE users ADD COLUMN email_verified INTEGER DEFAULT 0')
+            conn.commit()
+
         cursor.execute('''
             UPDATE users
             SET email = ?, email_verified = ?
@@ -843,6 +850,41 @@ def update_user_email(user_id, email, verified=False):
         return cursor.rowcount > 0
 
 
+def update_user_email_notify(user_id, enabled):
+    """更新用户邮件通知偏好"""
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        # 先检查字段是否存在
+        try:
+            cursor.execute('SELECT email_notify_enabled FROM users LIMIT 1')
+        except:
+            cursor.execute('ALTER TABLE users ADD COLUMN email_notify_enabled INTEGER DEFAULT 1')
+            conn.commit()
+
+        cursor.execute('''
+            UPDATE users
+            SET email_notify_enabled = ?
+            WHERE id = ?
+        ''', (int(enabled), user_id))
+        conn.commit()
+        return cursor.rowcount > 0
+
+
+def get_user_email_notify(user_id):
+    """获取用户邮件通知偏好（默认开启）"""
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        # 先检查字段是否存在
+        try:
+            cursor.execute('SELECT email_notify_enabled FROM users WHERE id = ?', (user_id,))
+            row = cursor.fetchone()
+            if row is None:
+                return True
+            return bool(row[0]) if row[0] is not None else True
+        except:
+            return True  # 字段不存在时默认开启
+
+
 def get_all_users():
     """获取所有用户"""
     with db_pool.get_db() as conn:

email_service.py

@@ -100,7 +100,7 @@ def init_email_tables():
                 password TEXT DEFAULT '',
                 use_ssl INTEGER DEFAULT 1,
                 use_tls INTEGER DEFAULT 0,
-                sender_name TEXT DEFAULT '知识管理平台',
+                sender_name TEXT DEFAULT '自动化学习',
                 sender_email TEXT DEFAULT '',
                 daily_limit INTEGER DEFAULT 0,
                 daily_sent INTEGER DEFAULT 0,
@@ -411,7 +411,7 @@ def create_smtp_config(data: Dict[str, Any]) -> int:
             password,
             int(data.get('use_ssl', True)),
             int(data.get('use_tls', False)),
-            data.get('sender_name', '知识管理平台'),
+            data.get('sender_name', '自动化学习'),
             data.get('sender_email', ''),
             data.get('daily_limit', 0)
         ))
@@ -829,7 +829,7 @@ def test_smtp_config(config_id: int, test_email: str) -> Dict[str, Any]:
         sender.connect()
         sender.send(
             test_email,
-            '知识管理平台 - SMTP配置测试',
+            '自动化学习 - SMTP配置测试',
             f'这是一封测试邮件。\n\n配置名称: {config["name"]}\nSMTP服务器: {config["host"]}:{config["port"]}\n\n如果您收到此邮件，说明SMTP配置正确。',
             None,
             None
@@ -1211,7 +1211,7 @@ def send_register_verification_email(
     text_body = f"""
 您好，{username}！
 
-感谢您注册知识管理平台。请点击下面的链接验证您的邮箱地址：
+感谢您注册自动化学习。请点击下面的链接验证您的邮箱地址：
 
 {verify_url}
 
@@ -1223,7 +1223,7 @@ def send_register_verification_email(
     # 发送邮件
     result = send_email(
         to_email=email,
-        subject='【知识管理平台】邮箱验证',
+        subject='【自动化学习】邮箱验证',
         body=text_body,
         html_body=html_body,
         email_type=EMAIL_TYPE_REGISTER,
@@ -1355,7 +1355,7 @@ def send_password_reset_email(
     # 发送邮件
     result = send_email(
         to_email=email,
-        subject='【知识管理平台】密码重置',
+        subject='【自动化学习】密码重置',
         body=text_body,
         html_body=html_body,
         email_type=EMAIL_TYPE_RESET,
@@ -1515,7 +1515,7 @@ def send_bind_email_verification(
     # 发送邮件
     result = send_email(
         to_email=email,
-        subject='【知识管理平台】邮箱绑定验证',
+        subject='【自动化学习】邮箱绑定验证',
         body=text_body,
         html_body=html_body,
         email_type=EMAIL_TYPE_BIND,
@@ -1832,7 +1832,7 @@ def send_task_complete_email(
 
         result = send_email(
             to_email=email,
-            subject=f'【知识管理平台】任务完成 - {account_name}',
+            subject=f'【自动化学习】任务完成 - {account_name}',
             body=text_body,
             html_body=html_body,
             email_type=EMAIL_TYPE_TASK_COMPLETE,
@@ -1851,7 +1851,7 @@ def send_task_complete_email(
         attachment = [{'filename': screenshot_filename, 'data': screenshot_data}]
         result2 = send_email(
             to_email=email,
-            subject=f'【知识管理平台】任务截图 - {account_name}',
+            subject=f'【自动化学习】任务截图 - {account_name}',
             body=f'这是 {account_name} 的任务截图。',
             attachments=attachment,
             email_type=EMAIL_TYPE_TASK_COMPLETE,
@@ -1898,7 +1898,7 @@ def send_task_complete_email(
 
         result = send_email(
             to_email=email,
-            subject=f'【知识管理平台】任务完成 - {account_name}',
+            subject=f'【自动化学习】任务完成 - {account_name}',
             body=text_body,
             html_body=html_body,
             attachments=attachments,

templates/index.html

@@ -768,6 +768,20 @@
                             <button class="btn btn-text" onclick="unbindEmail()" style="color: #e74c3c;">解绑</button>
                         </div>
                     </div>
+                    <!-- 邮件通知开关 -->
+                    <div id="emailNotifySection" style="margin-top: 15px; padding-top: 15px; border-top: 1px dashed #ddd; display: none;">
+                        <div style="display: flex; justify-content: space-between; align-items: center;">
+                            <div>
+                                <span style="color: #333;">任务完成通知</span>
+                                <div style="font-size: 12px; color: #666; margin-top: 3px;">定时任务完成后发送邮件</div>
+                            </div>
+                            <label style="position: relative; display: inline-block; width: 50px; height: 26px;">
+                                <input type="checkbox" id="emailNotifySwitch" onchange="toggleEmailNotify()" style="opacity: 0; width: 0; height: 0;">
+                                <span style="position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .3s; border-radius: 26px;"></span>
+                                <span id="emailNotifySlider" style="position: absolute; content: ''; height: 20px; width: 20px; left: 3px; bottom: 3px; background-color: white; transition: .3s; border-radius: 50%;"></span>
+                            </label>
+                        </div>
+                    </div>
                 </div>
 
                 <!-- 修改密码 -->
@@ -2081,6 +2095,7 @@
                 .then(data => {
                     const bindSection = document.getElementById('emailBindSection');
                     const boundSection = document.getElementById('emailBoundSection');
+                    const notifySection = document.getElementById('emailNotifySection');
                     const statusSpan = document.getElementById('emailStatus');
                     const boundEmail = document.getElementById('boundEmail');
                     const bindInput = document.getElementById('bindEmail');
@@ -2088,16 +2103,21 @@
                     if (data.email && data.email_verified) {
                         bindSection.style.display = 'none';
                         boundSection.style.display = 'block';
+                        notifySection.style.display = 'block';
                         boundEmail.textContent = data.email;
                         statusSpan.innerHTML = '<span style="color: #27ae60;">已验证</span>';
+                        // 加载邮件通知偏好
+                        loadEmailNotify();
                     } else if (data.email) {
                         bindSection.style.display = 'block';
                         boundSection.style.display = 'none';
+                        notifySection.style.display = 'none';
                         bindInput.value = data.email;
                         statusSpan.innerHTML = '<span style="color: #f39c12;">待验证</span>';
                     } else {
                         bindSection.style.display = 'block';
                         boundSection.style.display = 'none';
+                        notifySection.style.display = 'none';
                         bindInput.value = '';
                         statusSpan.innerHTML = '<span style="color: #999;">未绑定</span>';
                     }
@@ -2105,6 +2125,63 @@
                 .catch(() => {});
         }
 
+        function loadEmailNotify() {
+            fetch('/api/user/email-notify')
+                .then(r => r.json())
+                .then(data => {
+                    const checkbox = document.getElementById('emailNotifySwitch');
+                    const slider = document.getElementById('emailNotifySlider');
+                    const bg = checkbox.nextElementSibling;
+                    checkbox.checked = data.enabled;
+                    if (data.enabled) {
+                        bg.style.backgroundColor = '#27ae60';
+                        slider.style.transform = 'translateX(24px)';
+                    } else {
+                        bg.style.backgroundColor = '#ccc';
+                        slider.style.transform = 'translateX(0)';
+                    }
+                })
+                .catch(() => {});
+        }
+
+        function toggleEmailNotify() {
+            const checkbox = document.getElementById('emailNotifySwitch');
+            const slider = document.getElementById('emailNotifySlider');
+            const bg = checkbox.nextElementSibling;
+            const enabled = checkbox.checked;
+
+            // 立即更新UI
+            if (enabled) {
+                bg.style.backgroundColor = '#27ae60';
+                slider.style.transform = 'translateX(24px)';
+            } else {
+                bg.style.backgroundColor = '#ccc';
+                slider.style.transform = 'translateX(0)';
+            }
+
+            fetch('/api/user/email-notify', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ enabled: enabled })
+            })
+            .then(r => r.json())
+            .then(data => {
+                if (data.success) {
+                    showToast(enabled ? '已开启邮件通知' : '已关闭邮件通知', 'success');
+                } else {
+                    // 恢复状态
+                    checkbox.checked = !enabled;
+                    loadEmailNotify();
+                    showToast('设置失败', 'error');
+                }
+            })
+            .catch(() => {
+                checkbox.checked = !enabled;
+                loadEmailNotify();
+                showToast('网络错误', 'error');
+            });
+        }
+
         function bindEmail() {
             const email = document.getElementById('bindEmail').value.trim();
             if (!email) {