Bilibili-Evolved/min/download-audio.min.js
2019-11-01 12:47:01 +08:00

1 line
1.9 KiB
JavaScript

(()=>{return(e,t)=>{class n{constructor(){this.sid=null;this.progress=null}async getDownloadUrl(){const e=`https://www.bilibili.com/audio/music-service-c/web/url?sid=${this.sid}&privilege=2&quality=2`;const t=await Ajax.getJsonWithCredentials(e);if(t.code===0){return t.data.cdns.shift()}else{logError("获取下载链接失败, 请确保当前账号有下载权限.","下载音频",1e4);return null}}async download(){const e=await this.getDownloadUrl();return new Promise((t,n)=>{const s=new XMLHttpRequest;s.open("GET",e);s.responseType="blob";s.addEventListener("load",()=>t(s.response));s.addEventListener("error",()=>n(s.status));s.addEventListener("progress",e=>this.progress&&this.progress(100*e.loaded/e.total));s.send()})}}const s="下载音频";return{export:n,widget:{content:`\n<button\n disabled\n class="gui-settings-flat-button"\n id="download-audio">\n<i class="icon-download"></i>\n<span>${s}</span>\n<a id="download-audio-link" style="display: none"></a>\n</button>`,condition:()=>document.URL.includes("bilibili.com/audio"),success:async()=>{await SpinQuery.select(()=>document.querySelector("#app"));const e=document.querySelector("#download-audio");const t=e.querySelector("span");const o=new n;o.progress=(e=>{t.innerHTML=`${Math.round(e)}%`});const i=document.querySelector("#download-audio-link");e.addEventListener("click",async e=>{if(o.sid===null||e.target===i){return}const n=await o.download();t.innerHTML=s;const r=i.getAttribute("href");if(r){URL.revokeObjectURL(r)}i.setAttribute("href",URL.createObjectURL(n));const d=(()=>{const e=document.querySelector(".song-title");if(e){return e.getAttribute("title")}else{return"神秘音频"}})();i.setAttribute("download",d+".m4a");i.click()});Observer.childList("#app",()=>{const t=document.URL.match(/bilibili\.com\/audio\/au([\d]+)/);if(t&&t[1]){e.disabled=false;o.sid=t[1]}else{e.disabled=true}})}}}}})();