metona-ai-desktop/electron/ipc/config.ts

/**
 * IPC Config Handlers — 配置管理域（P2-9 从 handlers.ts 拆分）
 *
 * config:get / config:set / config:setBatch。
 * P2-9: set 与 setBatch 共享 applyConfigSideEffects（消除原 300 行重复逻辑）。
 */

import { ipcMain } from 'electron';
import type { IPCContext } from './context';
import {
  LLM_CONFIG_KEYS,
  applyConfigSideEffects,
  clearApiKeyOnProviderChange,
  maskSensitive,
  assertSafeConfigUrls,
} from './shared';
import log from 'electron-log';

export function registerConfigHandlers(ctx: IPCContext): void {
  const { configService, auditService } = ctx;

  ipcMain.handle('config:get', async (_event, key) => {
    return configService.get(key);
  });

  ipcMain.handle('config:set', async (_event, key: unknown, value: unknown) => {
    // M-42 修复: 参数校验
    if (typeof key !== 'string' || !key.trim()) {
      return { success: false, error: 'Invalid config key' };
    }
    // value 必须是可序列化的基本类型（string|number|boolean|null）
    if (
      value !== null &&
      typeof value !== 'string' &&
      typeof value !== 'number' &&
      typeof value !== 'boolean'
    ) {
      return {
        success: false,
        error: 'Invalid config value: must be string, number, boolean, or null',
      };
    }

    // v0.7.4 P2-9-C: URL 类配置键高危目标校验（llm.baseURL/searxng.url/updateFeedUrl）
    try {
      assertSafeConfigUrls([{ key, value }]);
    } catch (err) {
      log.warn(`[CONFIG] config:set rejected URL for ${key}: ${(err as Error).message}`);
      return { success: false, error: (err as Error).message };
    }

    // C-1 修复: Provider 切换时清空 API key（P2-9: 统一走共享函数）
    clearApiKeyOnProviderChange(ctx, [{ key, value }]);

    configService.set(key, value);

    // M-42 修复: 敏感配置项脱敏后再写入审计日志
    auditService.log({
      sessionId: '',
      eventType: 'config_change',
      actor: 'user',
      target: key,
      details: { value: maskSensitive(key, value) },
      outcome: 'success',
    });

    // P2-9: 统一副作用（reloadAdapter + Engine 同步 + 广播 + 工作空间路径）
    const sideEffectError = await applyConfigSideEffects(ctx, [{ key, value }]);
    if (sideEffectError) {
      return { success: false, error: sideEffectError };
    }
    if (LLM_CONFIG_KEYS.includes(key)) {
      log.info(`[CONFIG] LLM config changed (${key}), adapter reloaded`);
    }

    return { success: true };
  });

  // ===== v0.3.9: 批量保存配置（P2-9: 复用共享副作用逻辑） =====
  // 设计原因：前端设置页一次保存多个字段，串行 config:set 会在中间态（如 provider
  // 已改但 apiKey 还没保存）触发 reloadAdapter 失败。批量保存：先写入所有字段，
  // 最后统一触发一次 reloadAdapter 和 Engine/Orchestrator 同步。
  ipcMain.handle('config:setBatch', async (_event, entries: unknown) => {
    // 参数校验：必须是 {key, value}[] 非空数组
    if (!Array.isArray(entries) || entries.length === 0) {
      return { success: false, error: 'Invalid entries: must be non-empty array of {key, value}' };
    }
    // 逐条校验每个元素的结构和类型
    for (const entry of entries) {
      if (!entry || typeof entry !== 'object') {
        return { success: false, error: 'Invalid entry: must be {key, value} object' };
      }
      const e = entry as { key?: unknown; value?: unknown };
      if (typeof e.key !== 'string' || !e.key.trim()) {
        return { success: false, error: 'Invalid config key in batch' };
      }
      const v = e.value;
      if (v !== null && typeof v !== 'string' && typeof v !== 'number' && typeof v !== 'boolean') {
        return {
          success: false,
          error: `Invalid config value for key "${e.key}": must be string, number, boolean, or null`,
        };
      }
    }

    // v0.7.4 P2-9-C: 批量写入同样校验 URL 类配置键
    try {
      assertSafeConfigUrls(entries as Array<{ key: string; value: unknown }>);
    } catch (err) {
      log.warn(`[CONFIG] config:setBatch rejected URL entry: ${(err as Error).message}`);
      return { success: false, error: (err as Error).message };
    }

    // v0.3.10 防御性修复: Provider 切换清空 apiKey 必须在循环前执行（共享函数内含说明）
    clearApiKeyOnProviderChange(ctx, entries as Array<{ key: string; value: unknown }>);

    // 第一步：批量写入 configService（单事务 + 全局层一次落盘，v0.7.4 P3-6）+ 审计日志（脱敏）
    for (const entry of entries) {
      const { key, value } = entry as { key: string; value: unknown };
      auditService.log({
        sessionId: '',
        eventType: 'config_change',
        actor: 'user',
        target: key,
        details: { value: maskSensitive(key, value) },
        outcome: 'success',
      });
    }
    configService.setBatch(entries as Array<{ key: string; value: unknown }>);

    // 第二步：统一副作用（reloadAdapter + Engine 同步 + 日志级别 + 广播 + 工作空间路径）
    const sideEffectError = await applyConfigSideEffects(
      ctx,
      entries as Array<{ key: string; value: unknown }>,
    );
    if (sideEffectError) {
      log.warn('[CONFIG] Config batch save side effects failed');
      return { success: false, error: sideEffectError };
    }
    log.info(`[CONFIG] Config batch saved (${entries.length} keys)`);

    return { success: true };
  });
}