修改了下载站点配置的按钮，修改了增加静态文件配置的按钮

nginx_tab.py

@@ -258,7 +258,7 @@ class NginxSiteThread(QThread):
         self.site_config = site_config
         self.site_name = site_name
         self.password = password
-        self.operation = operation  # "create" 或 "enable"
+        self.operation = operation  # "create" 或 "enable" 或 "download"
         
     def run(self):
         try:
@@ -326,6 +326,22 @@ class NginxSiteThread(QThread):
                     self.result_ready.emit(False, f"站点配置启用失败: {error}")
                     logger.error(f"站点配置启用失败: {error}")
                     
+            elif self.operation == "download":
+                # 下载站点配置文件
+                site_path = f"/etc/nginx/sites-enabled/{self.site_name}"
+                download_cmd = f"bash -c 'echo \"{self.password}\" | sudo -S cat {site_path}'"
+                stdin, stdout, stderr = self.ssh_client.exec_command(download_cmd)
+                exit_status = stdout.channel.recv_exit_status()
+                
+                if exit_status == 0:
+                    config_content = stdout.read().decode()
+                    self.result_ready.emit(True, config_content)
+                    logger.info(f"站点配置文件下载成功: {site_path}")
+                else:
+                    error = stderr.read().decode()
+                    self.result_ready.emit(False, f"站点配置文件下载失败: {error}")
+                    logger.error(f"站点配置文件下载失败: {error}")
+                    
         except Exception as e:
             error_msg = str(e)
             self.result_ready.emit(False, error_msg)
@@ -400,6 +416,11 @@ class NginxTab(QWidget):
         self.enable_site_config_btn.clicked.connect(self.enable_site_config)
         site_config_btn_layout.addWidget(self.enable_site_config_btn)
         
+        # 下载站点配置按钮
+        self.download_site_config_btn = QPushButton("下载站点配置")
+        self.download_site_config_btn.clicked.connect(self.download_site_config)
+        site_config_btn_layout.addWidget(self.download_site_config_btn)
+        
         site_config_layout.addLayout(site_config_btn_layout)
         layout.addLayout(site_config_layout)
         
@@ -783,6 +804,99 @@ http {
             logger.error(f"Nginx站点配置启用后语法检查失败: {message}")
             QMessageBox.warning(self, "错误", f"Nginx配置文件语法检查失败: {message}")
     
+    def download_site_config(self):
+        """下载站点配置文件"""
+        if not self.ssh_client:
+            self.append_output("错误: 未连接到服务器")
+            return
+            
+        if not self.project_name:
+            self.append_output("错误: 未设置项目名")
+            return
+            
+        # 请求用户输入sudo密码
+        dialog = PasswordDialog(self)
+        if dialog.exec_() == QDialog.Accepted:
+            password = dialog.get_password()
+            self.append_output(f"正在下载站点配置文件: {self.project_name}...")
+            
+            # 创建并启动站点配置下载线程
+            self.site_thread = NginxSiteThread(self.ssh_client, "", self.project_name, password, "download")
+            self.site_thread.result_ready.connect(self.on_download_site_config_result)
+            self.site_thread.start()
+        else:
+            self.append_output("用户取消了密码输入")
+    
+    def on_download_site_config_result(self, success, message):
+        """处理下载站点配置结果"""
+        if success:
+            # 将下载的配置内容显示在站点配置编辑器中
+            self.site_config_editor.setPlainText(message)
+            self.append_output("站点配置文件下载成功")
+            logger.info("Nginx站点配置文件下载成功")
+            
+            # 尝试添加静态文件映射配置
+            self.add_static_mappings()
+        else:
+            self.append_output(f"下载失败: {message}")
+            logger.error(f"Nginx站点配置文件下载失败: {message}")
+            QMessageBox.warning(self, "错误", f"Nginx站点配置文件下载失败: {message}")
+    
+    def add_static_mappings(self):
+        """添加静态文件映射配置"""
+        # 读取config.json文件获取项目信息
+        try:
+            with open('config.json', 'r', encoding='utf-8') as f:
+                config = json.load(f)
+                
+            # 获取第一个服务器配置（假设只有一个服务器配置）
+            server_config = next(iter(config.values()))
+            username = server_config.get('username', '')
+            project_name = server_config.get('project', '')
+            remote_dir = server_config.get('remote_dir', '')
+            
+            # 构建静态文件路径
+            static_path = f"{remote_dir}/{project_name}/static"
+            media_path = f"{remote_dir}/{project_name}/media"
+            
+            # 获取当前配置内容
+            current_config = self.site_config_editor.toPlainText()
+            
+            # 检查是否已经包含静态文件映射
+            if "location /static/" not in current_config:
+                # 添加静态文件映射配置
+                static_mapping = f"\n    # 静态文件映射\n"
+                static_mapping += f"    location /static/ {{\n"
+                static_mapping += f"        alias {static_path}/;\n"
+                static_mapping += f"        expires 30d;\n"
+                static_mapping += f"    }}\n"
+                
+                # 添加媒体文件映射配置
+                static_mapping += f"\n    # 媒体文件映射\n"
+                static_mapping += f"    location /media/ {{\n"
+                static_mapping += f"        alias {media_path}/;\n"
+                static_mapping += f"        expires 30d;\n"
+                static_mapping += f"    }}\n"
+                
+                # 在server块的末尾添加静态文件映射（在最后一个}之前）
+                last_brace_pos = current_config.rfind('}')
+                if last_brace_pos != -1:
+                    new_config = current_config[:last_brace_pos] + static_mapping + current_config[last_brace_pos:]
+                    self.site_config_editor.setPlainText(new_config)
+                    self.append_output("已添加静态文件映射配置")
+                    logger.info("已添加静态文件映射配置")
+                else:
+                    self.append_output("无法添加静态文件映射配置：未找到server块的结束位置")
+                    logger.warning("无法添加静态文件映射配置：未找到server块的结束位置")
+            else:
+                self.append_output("配置文件已包含静态文件映射")
+                logger.info("配置文件已包含静态文件映射")
+                
+        except Exception as e:
+            error_msg = str(e)
+            self.append_output(f"添加静态文件映射失败: {error_msg}")
+            logger.error(f"添加静态文件映射失败: {error_msg}")
+    
     def restart_nginx(self):
         """重启Nginx"""
         if not self.ssh_client: