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feat: 支持连接 Last.fm（记录播放、正在播放、喜欢同步） #25
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| Original file line number | Diff line number | Diff line change |
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| .eslintcache | ||
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| .agents | ||
| docs/superpowers | ||
| skills-lock.json | ||
| *.log* | ||
| .vscode/settings.json | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| import { ipcMain } from "electron"; | ||
| import * as lastfm from "@main/services/lastfm"; | ||
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| /** 注册 Last.fm 相关 IPC */ | ||
| export const registerLastfmIpc = (): void => { | ||
| ipcMain.handle("lastfm:connect", () => lastfm.connect()); | ||
| ipcMain.handle("lastfm:cancelConnect", () => lastfm.cancelConnect()); | ||
| ipcMain.handle("lastfm:disconnect", () => lastfm.disconnect()); | ||
| ipcMain.handle("lastfm:getStatus", () => lastfm.getStatus()); | ||
| ipcMain.handle("lastfm:love", (_event, artist: string, track: string, loved: boolean) => | ||
| lastfm.love(artist, track, loved), | ||
| ); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| import { createHash } from "node:crypto"; | ||
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| /** | ||
| * Last.fm 底层签名 HTTP 客户端 | ||
| * API 文档: https://www.last.fm/api | ||
| */ | ||
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| const API_URL = "https://ws.audioscrobbler.com/2.0/"; | ||
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| // 应用级凭证 | ||
| const LASTFM_API_KEY = "79fa364d995b13c2b21bdd65b7e7054f"; | ||
| const LASTFM_API_SECRET = "6d2ecc338d0a0802669e529f14b8034f"; | ||
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| /** Last.fm JSON 响应中我们关心的字段 */ | ||
| interface LastfmResponse { | ||
| error?: number; | ||
| message?: string; | ||
| token?: string; | ||
| session?: { name: string; key: string }; | ||
| } | ||
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| /** | ||
| * 生成浏览器授权地址 | ||
| * @param token - auth.getToken 拿到的临时令牌 | ||
| * @returns 授权页 URL | ||
| */ | ||
| export const getAuthUrl = (token: string): string => | ||
| `https://www.last.fm/api/auth/?api_key=${LASTFM_API_KEY}&token=${token}`; | ||
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| /** | ||
| * 生成 api_sig：除 format 外按字母序拼 key+value，末尾接 secret 后取 md5 | ||
| * 注意：MD5 是 Last.fm 签名协议的强制要求（服务端同样以 md5 校验），并非用于 | ||
| * 加密/防篡改的安全用途，无法替换为更强算法，否则所有请求会被 Last.fm 拒绝。 | ||
| * @param params - 待签名参数（不含 api_sig / format） | ||
| * @returns 32 位十六进制签名 | ||
| */ | ||
| const sign = (params: Record<string, string>): string => { | ||
| const base = Object.keys(params) | ||
| .filter((key) => key !== "format") | ||
| .sort() | ||
| .map((key) => `${key}${params[key]}`) | ||
| .join(""); | ||
| return createHash("md5") | ||
| .update(base + LASTFM_API_SECRET, "utf-8") | ||
Check failureCode scanning / CodeQL Use of a broken or weak cryptographic algorithm High A broken or weak cryptographic algorithm Error loading related location Loading sensitive data from an access to LASTFM_API_SECRET Error loading related location Loading |
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imsyy marked this conversation as resolved.
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| .digest("hex"); | ||
| }; | ||
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| /** | ||
| * 组装请求参数：补 method/api_key，按需签名，最后补 format | ||
| * @param method - API 方法名 | ||
| * @param params - 业务参数 | ||
| * @param signed - 是否需要签名 | ||
| * @returns URLSearchParams | ||
| */ | ||
| const buildParams = ( | ||
| method: string, | ||
| params: Record<string, string>, | ||
| signed: boolean, | ||
| ): URLSearchParams => { | ||
| const base: Record<string, string> = { method, api_key: LASTFM_API_KEY, ...params }; | ||
| if (signed) base.api_sig = sign(base); | ||
| base.format = "json"; | ||
| return new URLSearchParams(base); | ||
| }; | ||
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| /** GET 请求（读操作） */ | ||
| const get = async ( | ||
| method: string, | ||
| params: Record<string, string> = {}, | ||
| signed = false, | ||
| ): Promise<LastfmResponse> => { | ||
| const qs = buildParams(method, params, signed); | ||
| const res = await fetch(`${API_URL}?${qs.toString()}`); | ||
| const data = (await res.json()) as LastfmResponse; | ||
| if (data.error) throw new Error(`Last.fm ${data.error}: ${data.message ?? "未知错误"}`); | ||
| return data; | ||
| }; | ||
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| /** POST 请求（写操作，必签名） */ | ||
| const post = async ( | ||
| method: string, | ||
| params: Record<string, string> = {}, | ||
| ): Promise<LastfmResponse> => { | ||
| const body = buildParams(method, params, true); | ||
| const res = await fetch(API_URL, { | ||
| method: "POST", | ||
| headers: { "Content-Type": "application/x-www-form-urlencoded" }, | ||
| body: body.toString(), | ||
| }); | ||
| const data = (await res.json()) as LastfmResponse; | ||
| if (data.error) throw new Error(`Last.fm ${data.error}: ${data.message ?? "未知错误"}`); | ||
| return data; | ||
| }; | ||
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| /** 已授权会话 */ | ||
| export interface LastfmSession { | ||
| /** 用户名 */ | ||
| name: string; | ||
| /** 会话密钥（不过期） */ | ||
| key: string; | ||
| } | ||
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| /** | ||
| * 获取临时授权令牌 | ||
| * @returns token 字符串 | ||
| */ | ||
| export const getToken = async (): Promise<string> => { | ||
| const data = await get("auth.getToken", {}, true); | ||
| if (!data.token) throw new Error("无法获取 Last.fm token"); | ||
| return data.token; | ||
| }; | ||
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| /** | ||
| * 用授权令牌换取会话（用户在浏览器授权后才会成功） | ||
| * @param token - getToken 拿到的令牌 | ||
| * @returns 会话信息 | ||
| */ | ||
| export const getSession = async (token: string): Promise<LastfmSession> => { | ||
| const data = await get("auth.getSession", { token }, true); | ||
| if (!data.session?.key) throw new Error("尚未授权"); | ||
| return { name: data.session.name, key: data.session.key }; | ||
| }; | ||
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| /** | ||
| * 上报「正在播放」 | ||
| * @param sessionKey - 会话密钥 | ||
| * @param track - 歌曲名 | ||
| * @param artist - 主艺人名 | ||
| * @param album - 专辑名 | ||
| * @param durationSec - 时长（秒） | ||
| */ | ||
| export const updateNowPlaying = async ( | ||
| sessionKey: string, | ||
| track: string, | ||
| artist: string, | ||
| album?: string, | ||
| durationSec?: number, | ||
| ): Promise<void> => { | ||
| const params: Record<string, string> = { sk: sessionKey, track, artist }; | ||
| if (album) params.album = album; | ||
| if (durationSec) params.duration = String(durationSec); | ||
| await post("track.updateNowPlaying", params); | ||
| }; | ||
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| /** | ||
| * 记录播放（scrobble） | ||
| * @param sessionKey - 会话密钥 | ||
| * @param track - 歌曲名 | ||
| * @param artist - 主艺人名 | ||
| * @param timestamp - 开始播放的 Unix 时间戳（秒） | ||
| * @param album - 专辑名 | ||
| * @param durationSec - 时长（秒） | ||
| */ | ||
| export const scrobble = async ( | ||
| sessionKey: string, | ||
| track: string, | ||
| artist: string, | ||
| timestamp: number, | ||
| album?: string, | ||
| durationSec?: number, | ||
| ): Promise<void> => { | ||
| const params: Record<string, string> = { | ||
| sk: sessionKey, | ||
| track, | ||
| artist, | ||
| timestamp: String(timestamp), | ||
| }; | ||
| if (album) params.album = album; | ||
| if (durationSec) params.duration = String(durationSec); | ||
| await post("track.scrobble", params); | ||
| }; | ||
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| /** | ||
| * 喜欢 / 取消喜欢 | ||
| * @param sessionKey - 会话密钥 | ||
| * @param track - 歌曲名 | ||
| * @param artist - 主艺人名 | ||
| * @param loved - true 为 Love，false 为 Unlove | ||
| */ | ||
| export const love = async ( | ||
| sessionKey: string, | ||
| track: string, | ||
| artist: string, | ||
| loved: boolean, | ||
| ): Promise<void> => { | ||
| await post(loved ? "track.love" : "track.unlove", { sk: sessionKey, track, artist }); | ||
| }; | ||
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