| 37 | } |
| 38 | |
| 39 | async function getSecret() { |
| 40 | let secret, expiration; |
| 41 | config.extra[services.yiyan] && ({secret, expiration} = config.extra[services.yiyan]); |
| 42 | |
| 43 | // 检查 secret 是否存在且未过期 |
| 44 | if (secret && config.ak && config.sk && expiration > Date.now()) return secret; |
| 45 | |
| 46 | // 构建请求参数 |
| 47 | let params = new URLSearchParams({ |
| 48 | 'grant_type': 'client_credentials', |
| 49 | 'client_id': config.ak, |
| 50 | 'client_secret': config.sk, |
| 51 | }); |
| 52 | |
| 53 | // 发起 fetch 请求 |
| 54 | const resp = await fetch(urls[config.service].tokenUrl, { |
| 55 | method: method.POST, |
| 56 | body: params |
| 57 | }); |
| 58 | |
| 59 | const res = await resp.json(); |
| 60 | if (resp.ok && res.access_token) { |
| 61 | // 获取有效时间范围，有效期30天（单位秒），需 x1000 转换为毫秒 |
| 62 | let expiration = new Date().getTime() + res.expires_in * 1000; |
| 63 | // 缓存 secret 和 expiration |
| 64 | config.extra[services.yiyan] = {secret: res.access_token, expiration: expiration}; |
| 65 | storage.setItem('local:config', JSON.stringify(config)); |
| 66 | return res.access_token; |
| 67 | } else throw new Error(res.error_description || '文心一言获取 token 失败'); |
| 68 | } |
| 69 | |
| 70 | export default yiyan; |