68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
/**
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* 根据支持的文件类型生成 accept 属性值
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*
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* @param supportedFileTypes 支持的文件类型数组，如 ['PDF', 'DOC', 'DOCX']
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* @returns 用于文件上传组件 accept 属性的字符串
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*/
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export const generateAcceptedFileTypes = (
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supportedFileTypes: string[],
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): string => {
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const allowedExtensions = supportedFileTypes.map((ext) => ext.toLowerCase());
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const mimeTypes: string[] = [];
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// 添加常见的 MIME 类型映射
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if (allowedExtensions.includes('txt')) {
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mimeTypes.push('text/plain');
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}
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if (allowedExtensions.includes('pdf')) {
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mimeTypes.push('application/pdf');
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}
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if (allowedExtensions.includes('html') || allowedExtensions.includes('htm')) {
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mimeTypes.push('text/html');
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}
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if (allowedExtensions.includes('csv')) {
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mimeTypes.push('text/csv');
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}
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if (allowedExtensions.includes('xlsx') || allowedExtensions.includes('xls')) {
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mimeTypes.push(
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'application/vnd.ms-excel',
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'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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);
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}
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if (allowedExtensions.includes('docx') || allowedExtensions.includes('doc')) {
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mimeTypes.push(
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'application/msword',
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'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
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);
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}
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if (allowedExtensions.includes('pptx') || allowedExtensions.includes('ppt')) {
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mimeTypes.push(
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'application/vnd.ms-powerpoint',
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'application/vnd.openxmlformats-officedocument.presentationml.presentation',
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);
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}
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if (allowedExtensions.includes('xml')) {
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mimeTypes.push('application/xml', 'text/xml');
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}
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if (
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allowedExtensions.includes('md') ||
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allowedExtensions.includes('markdown')
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) {
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mimeTypes.push('text/markdown');
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}
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if (allowedExtensions.includes('epub')) {
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mimeTypes.push('application/epub+zip');
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}
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if (allowedExtensions.includes('eml')) {
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mimeTypes.push('message/rfc822');
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}
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if (allowedExtensions.includes('msg')) {
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mimeTypes.push('application/vnd.ms-outlook');
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}
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// 添加文件扩展名
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const extensions = allowedExtensions.map((ext) => `.${ext}`);
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return [...mimeTypes, ...extensions].join(',');
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};
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