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WebAI2API/src/utils/config.js
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/**
* @fileoverview 配置加载模块
* @description 负责读取/解析 `config.yaml`,并提供 API Key 生成能力(供脚本使用)。
*
* 约定:
* - 该模块只负责“读取 + 校验 + 默认值补全”,不负责创建/写入配置文件。
* - 初始化/拷贝配置请使用 `config.example.yaml` + `scripts/config-init.js`。
*/
import fs from 'fs';
import path from 'path';
import yaml from 'yaml';
import { logger } from './logger.js';
const CONFIG_PATH = path.join(process.cwd(), 'config.yaml');
const EXAMPLE_CONFIG_PATH = path.join(process.cwd(), 'config.example.yaml');
// 模块级缓存:确保配置只从磁盘读取一次
let cachedConfig = null;
/**
* 加载并校验配置(只读)
* @returns {object} 配置对象
*/
export function loadConfig() {
// 如果已有缓存,直接返回
if (cachedConfig) return cachedConfig;
if (!fs.existsSync(CONFIG_PATH)) {
const hint = fs.existsSync(EXAMPLE_CONFIG_PATH)
? `请复制 ${EXAMPLE_CONFIG_PATH}${CONFIG_PATH}`
: `请创建 ${CONFIG_PATH}(仓库根目录通常提供 config.example.yaml 作为模板)`;
throw new Error(`未找到配置文件: ${CONFIG_PATH}${hint}`);
}
const configFile = fs.readFileSync(CONFIG_PATH, 'utf8');
const config = yaml.parse(configFile);
if (!config || typeof config !== 'object') {
throw new Error(`配置文件解析失败: ${CONFIG_PATH}`);
}
// Docker 路径兼容处理
if ((!config.browser?.path || !fs.existsSync(config.browser.path)) &&
fs.existsSync('/app/camoufox/camoufox')) {
logger.info('配置器', '检测到容器环境,自动修正浏览器路径为 /app/camoufox/camoufox');
if (!config.browser) config.browser = {};
config.browser.path = '/app/camoufox/camoufox';
}
// 基础配置校验
if (!config.server || !config.server.port) {
throw new Error('配置文件缺少必需字段: server.port');
}
if (!config.server.auth) {
throw new Error('配置文件缺少必需字段: server.auth');
}
// 设置队列配置默认值
if (!config.queue) {
config.queue = {
maxConcurrent: 1,
maxQueueSize: 2,
imageLimit: 5
};
} else {
// 强制 maxConcurrent 为 1
config.queue.maxConcurrent = 1;
if (config.queue.maxQueueSize === undefined) config.queue.maxQueueSize = 2;
if (config.queue.imageLimit === undefined) config.queue.imageLimit = 5;
}
// 设置 keepalive 配置默认值(兼容旧字段:keepalive.enable
if (!config.server.keepalive) {
config.server.keepalive = { mode: 'comment' };
} else {
if (config.server.keepalive.mode === undefined) config.server.keepalive.mode = 'comment';
// 验证 mode 值
if (!['comment', 'content'].includes(config.server.keepalive.mode)) {
logger.warn('配置器', `无效的 keepalive.mode: ${config.server.keepalive.mode},使用默认值 comment`);
config.server.keepalive.mode = 'comment';
}
}
// 设置 backend 配置默认值
if (!config.backend) {
config.backend = {
type: 'lmarena',
geminiBiz: { entryUrl: '' }
};
}
// 新增:Merge 配置初始化
if (!config.backend.merge) {
config.backend.merge = {
enable: false,
type: ['zai_is', 'lmarena']
};
}
// 校验 GeminiBiz 配置
if (config.backend.type === 'gemini_biz') {
if (!config.backend.geminiBiz || !config.backend.geminiBiz.entryUrl) {
throw new Error('backend.type = gemini_biz requires backend.geminiBiz.entryUrl');
}
}
logger.debug('配置器', '已加载 config.yaml');
logger.debug('配置器', '后端类型:', config.backend.type);
logger.debug('配置器', '流式心跳模式:', config.server.keepalive.mode);
if (config.backend.type === 'gemini_biz') {
logger.debug('配置器', `GeminiBiz 入口: ${config.backend.geminiBiz.entryUrl}`);
}
// 设置日志级别
if (config.logLevel) {
logger.setLevel(config.logLevel);
}
// 缓存配置
cachedConfig = config;
return config;
}
// 默认导出为函数
export default loadConfig;