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refactor(validation): abstract MIME type validation in validateAudioFile; check supported extensions in fileService; enhance docs and error logging

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xtrullor73
2024-05-27 15:20:12 -07:00
parent f8f6ae688e
commit f63bab30f0
4 changed files with 64 additions and 20 deletions
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41
src/utils/validateAudioFiles.js
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@@ -1,34 +1,49 @@
import fs from 'fs/promises';
import path from 'path';
import mime from 'mime-types';
/**
* Validates whether a given file path points to a supported audio file.
* Logs an error for each file that is not an audio file or not a file at all and ignores it.
* Validates whether a given file path points to an audio file by checking its MIME type.
* Logs an error if the path is not a file or if the file is not a recognized audio type.
*
* @param {string} filePath - The absolute path to the file to validate.
* @returns {Promise<string|null>} - The file path if it is a supported audio file, otherwise null.
* @returns {Promise<string|null>} - The file path if it is a recognized audio file, otherwise null.
*/
export default async function validateAudioFile(filePath) {
try {
// Ensure that the path points to a file
const stats = await fs.lstat(filePath);
if (!stats.isFile()) {
console.error(`The path ${filePath} is not an audio file and is ignored.`);
console.error(`The path ${filePath} is not a file and is ignored.`);
return null; // Stop further checks and return null
}
// List of supported audio file extensions
const audioExtensions = ['.mp3', '.wav', '.aac', '.flac', '.ogg', '.aiff', '.m4a'];
// MIME type checking
const mimeType = mime.lookup(filePath);
console.log(`MIME type of ${filePath} is ${mimeType}`); // Log the MIME type
// Check if the file extension is in the list of supported audio formats
const fileExtension = path.extname(filePath).toLowerCase();
if (!audioExtensions.includes(fileExtension)) {
console.error(`File ${path.basename(filePath)} is not an audio file and is ignored.`);
return null; // Not an audio file, return null
// Set of recognized audio MIME types
const validAudioMimeTypes = new Set([
'audio/mpeg', // .mp3
'audio/wav', // .wav
'audio/x-wav', // .wav
'audio/flac', // .flac
'audio/x-flac', // .flac
'audio/ogg', // .ogg
'audio/aac', // .aac
'audio/aiff', // .aiff
'audio/x-aiff', // .aiff
'audio/x-m4a', // .m4a
]);
// Perform the MIME type validation
if (!validAudioMimeTypes.has(mimeType)) {
console.error(`File ${filePath} is not an audio file and is ignored.`);
return null; // Not a recognized audio file type, return null
}
return filePath; // The file is a supported audio file
return filePath; // The file is a recognized audio file
} catch (e) {
console.error(`Error validating file ${filePath}: ${e}`);
return null; // Return null on error to maintain a consistent return type
}
}