refactor(typescript): utils.GetCoverFromFile & utils.GetMetaFromFile

src/decrypt/kgm.js

@@ -1,5 +1,11 @@
-import {GetFileInfo, GetMetaCoverURL} from "./util";
-import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, SniffAudioExt} from "@/decrypt/utils.ts";
+import {
+    AudioMimeType,
+    BytesHasPrefix,
+    GetArrayBuffer,
+    GetCoverFromFile,
+    GetMetaFromFile,
+    SniffAudioExt
+} from "@/decrypt/utils.ts";
 
 const musicMetadata = require("music-metadata-browser");
 const VprHeader = [
@@ -66,17 +72,16 @@ export async function Decrypt(file, raw_filename, raw_ext) {
     const mime = AudioMimeType[ext];
     let musicBlob = new Blob([audioData], {type: mime});
     const musicMeta = await musicMetadata.parseBlob(musicBlob);
-    const info = GetFileInfo(musicMeta.common.artist, musicMeta.common.title, raw_filename);
-    const imgUrl = GetMetaCoverURL(musicMeta);
+    const {title, artist} = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
     return {
         status: true,
-        title: info.title,
-        artist: info.artist,
         album: musicMeta.common.album,
-        picture: imgUrl,
+        picture: GetCoverFromFile(musicMeta),
         file: URL.createObjectURL(musicBlob),
         ext,
-        mime
+        mime,
+        title,
+        artist
     }
 }
 

src/decrypt/kwm.ts

@@ -1,5 +1,11 @@
-import {GetFileInfo, GetMetaCoverURL} from "./util";
-import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, SniffAudioExt} from "@/decrypt/utils.ts";
+import {
+    AudioMimeType,
+    BytesHasPrefix,
+    GetArrayBuffer,
+    GetCoverFromFile,
+    GetMetaFromFile,
+    SniffAudioExt
+} from "@/decrypt/utils.ts";
 import {Decrypt as RawDecrypt} from "@/decrypt/raw.ts";
 
 import {parseBlob as metaParseBlob} from "music-metadata-browser";
@@ -32,19 +38,16 @@ export async function Decrypt(file: File, raw_filename: string, _: string) {
     let musicBlob = new Blob([audioData], {type: mime});
 
     const musicMeta = await metaParseBlob(musicBlob);
-    const info = GetFileInfo(musicMeta.common.artist, musicMeta.common.title, raw_filename);
-
-    const imgUrl = GetMetaCoverURL(musicMeta);
-
+    const {title, artist} = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
     return {
         status: true,
-        title: info.title,
-        artist: info.artist,
-        ext: ext,
         album: musicMeta.common.album,
-        picture: imgUrl,
+        picture: GetCoverFromFile(musicMeta),
         file: URL.createObjectURL(musicBlob),
-        mime: mime
+        mime,
+        title,
+        artist,
+        ext
     }
 }
 

src/decrypt/ncm.js

@@ -1,4 +1,4 @@
-import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, SniffAudioExt} from "@/decrypt/utils.ts";
+import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, GetMetaFromFile, SniffAudioExt} from "@/decrypt/utils.ts";
 
 const CryptoJS = require("crypto-js");
 const MetaFlac = require('metaflac-js');
@@ -9,7 +9,6 @@ const musicMetadata = require("music-metadata-browser");
 import jimp from 'jimp';
 
 import {
-    GetFileInfo,
     GetWebImage,
     WriteMp3Meta
 } from "./util"
@@ -36,11 +35,10 @@ export async function Decrypt(file, raw_filename, _) {
 
     const artists = [];
     if (!!musicMeta.artist) musicMeta.artist.forEach(arr => artists.push(arr[0]));
-    const info = GetFileInfo(artists.join("; "), musicMeta.musicName, raw_filename);
+    const info = GetMetaFromFile(raw_filename, musicMeta.musicName, artists.join("; "))
     if (artists.length === 0) artists.push(info.artist);
 
     if (musicMeta.format === undefined) musicMeta.format = SniffAudioExt(audioData);
-    console.log(musicMeta)
 
     const imageInfo = await GetWebImage(musicMeta.albumPic);
     while (!!imageInfo.buffer && imageInfo.buffer.byteLength >= 16 * 1024 * 1024) {
@@ -48,12 +46,10 @@ export async function Decrypt(file, raw_filename, _) {
         await img.resize(Math.round(img.getHeight() / 2), jimp.AUTO)
         imageInfo.buffer = await img.getBufferAsync("image/jpeg")
     }
-    console.log(imageInfo)
     const mime = AudioMimeType[musicMeta.format]
     try {
         let musicBlob = new Blob([audioData], {type: mime});
         const originalMeta = await musicMetadata.parseBlob(musicBlob);
-        console.log(originalMeta)
         let shouldWrite = !originalMeta.common.album && !originalMeta.common.artists && !originalMeta.common.title
         if (musicMeta.format === "mp3") {
             audioData = await WriteMp3Meta(

src/decrypt/qmc.js

@@ -1,13 +1,11 @@
 import {
-    GetFileInfo,
-    GetMetaCoverURL,
     GetWebImage,
     IXAREA_API_ENDPOINT,
     WriteMp3Meta
 } from "./util";
 import {QmcMaskCreate58, QmcMaskDetectMflac, QmcMaskDetectMgg, QmcMaskGetDefault} from "./qmcMask";
 import {fromByteArray as Base64Encode, toByteArray as Base64Decode} from 'base64-js'
-import {AudioMimeType, GetArrayBuffer, SniffAudioExt} from "@/decrypt/utils.ts";
+import {AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt} from "@/decrypt/utils.ts";
 
 const MetaFlac = require('metaflac-js');
 
@@ -70,12 +68,12 @@ export async function Decrypt(file, raw_filename, raw_ext) {
         }
     }
 
-    const info = GetFileInfo(musicMeta.common.artist, musicMeta.common.title, raw_filename);
+    const info = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
     if (handler.detect) reportKeyUsage(keyData, seed.Matrix128,
         info.artist, info.title, musicMeta.common.album, raw_filename, raw_ext);
 
-    let imgUrl = GetMetaCoverURL(musicMeta);
-    if (imgUrl === "") {
+    let imgUrl = GetCoverFromFile(musicMeta);
+    if (!imgUrl) {
         imgUrl = await queryAlbumCoverImage(info.artist, info.title, musicMeta.common.album);
         if (imgUrl !== "") {
             const imageInfo = await GetWebImage(imgUrl);

src/decrypt/raw.ts

@@ -1,8 +1,7 @@
-import {AudioMimeType, GetArrayBuffer, SniffAudioExt} from "@/decrypt/utils.ts";
+import {AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt} from "@/decrypt/utils.ts";
 
 
 import {parseBlob as metaParseBlob} from "music-metadata-browser";
-import {GetMetaCoverURL, GetFileInfo} from "./util";
 
 export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string, detect: boolean = true) {
     let ext = raw_ext;
@@ -12,14 +11,15 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string,
         if (ext !== raw_ext) file = new Blob([buffer], {type: AudioMimeType[ext]})
     }
     const tag = await metaParseBlob(file);
-    const info = GetFileInfo(tag.common.artist, tag.common.title, raw_filename);
+    const {title, artist} = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist)
+
     return {
         status: true,
-        title: info.title,
-        artist: info.artist,
-        ext: ext,
+        title,
+        artist,
+        ext,
         album: tag.common.album,
-        picture: GetMetaCoverURL(tag),
+        picture: GetCoverFromFile(tag),
         file: URL.createObjectURL(file),
         mime: AudioMimeType[ext]
     }

src/decrypt/util.js

@@ -19,17 +19,6 @@ export function GetFileInfo(artist, title, filenameNoExt, separator = "-") {
     return {artist: newArtist, title: newTitle};
 }
 
-/**
- * @return {string}
- */
-export function GetMetaCoverURL(metadata) {
-    let pic_url = "";
-    if (metadata.common.picture !== undefined && metadata.common.picture.length > 0) {
-        let pic = new Blob([metadata.common.picture[0].data], {type: metadata.common.picture[0].format});
-        pic_url = URL.createObjectURL(pic);
-    }
-    return pic_url;
-}
 
 
 export async function GetWebImage(pic_url) {

src/decrypt/utils.ts

@@ -1,3 +1,5 @@
+import {IAudioMetadata} from "music-metadata-browser";
+
 export const FLAC_HEADER = [0x66, 0x4C, 0x61, 0x43];
 export const MP3_HEADER = [0x49, 0x44, 0x33];
 export const OGG_HEADER = [0x4F, 0x67, 0x67, 0x53];
@@ -58,3 +60,32 @@ export function GetArrayBuffer(obj: Blob): Promise<ArrayBuffer> {
         reader.readAsArrayBuffer(obj);
     });
 }
+
+export function GetCoverFromFile(metadata: IAudioMetadata): string {
+    if (metadata.common?.picture && metadata.common.picture.length > 0) {
+        return URL.createObjectURL(new Blob(
+            [metadata.common.picture[0].data],
+            {type: metadata.common.picture[0].format}
+        ));
+    }
+    return "";
+}
+
+export interface IMusicMetaBasic {
+    title: string
+    artist?: string
+}
+
+export function GetMetaFromFile(filename: string, exist_title?: string, exist_artist?: string, separator = "-")
+    : IMusicMetaBasic {
+    const meta: IMusicMetaBasic = {title: exist_title ?? "", artist: exist_artist}
+
+    const items = filename.split(separator);
+    if (items.length > 1) {
+        if (!meta.artist) meta.artist = items[0].trim();
+        if (!meta.title) meta.title = items[1].trim();
+    } else if (items.length === 1) {
+        if (!meta.title) meta.title = items[0].trim();
+    }
+    return meta
+}

src/decrypt/xm.js

@@ -1,7 +1,5 @@
-import {GetFileInfo, GetMetaCoverURL} from "./util";
-
 import {Decrypt as RawDecrypt} from "./raw";
-import {AudioMimeType, BytesHasPrefix, GetArrayBuffer} from "@/decrypt/utils.ts";
+import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile} from "@/decrypt/utils.ts";
 
 const musicMetadata = require("music-metadata-browser");
 const MagicHeader = [0x69, 0x66, 0x6D, 0x74]
@@ -47,20 +45,19 @@ export async function Decrypt(file, raw_filename, raw_ext) {
         musicMeta.common.artist = "";
         musicMeta.common.title = "";
     }
-    let _sep = raw_filename.indexOf("_") === -1 ? "-" : "_"
-    const info = GetFileInfo(musicMeta.common.artist, musicMeta.common.title, raw_filename, _sep);
-
-    const imgUrl = GetMetaCoverURL(musicMeta);
+    const {title, artist} = GetMetaFromFile(raw_filename,
+        musicMeta.common.title, musicMeta.common.artist,
+        raw_filename.indexOf("_") === -1 ? "-" : "_")
 
     return {
         status: true,
-        title: info.title,
-        artist: info.artist,
-        ext: ext,
+        title,
+        artist,
+        ext,
+        mime,
         album: musicMeta.common.album,
-        picture: imgUrl,
+        picture: GetCoverFromFile(musicMeta),
         file: URL.createObjectURL(musicBlob),
-        mime: mime,
         rawExt: "xm"
     }
 }