15 lines
629 B
TypeScript
15 lines
629 B
TypeScript
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const allowedTypes = new Set(['image/jpeg', 'image/png'])
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const allowedExtensions = new Set(['jpg', 'jpeg', 'png'])
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export const PRODUCT_IMAGE_MAX_SIZE = 5 * 1024 * 1024
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export function validateProductImageFile(file: Pick<File, 'name' | 'size' | 'type'>) {
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const extension = file.name.split('.').pop()?.toLowerCase() ?? ''
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if (!allowedTypes.has(file.type.toLowerCase()) || !allowedExtensions.has(extension)) {
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return '产品图片仅支持 JPG、JPEG、PNG 格式'
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}
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if (file.size <= 0) return '产品图片内容为空'
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if (file.size > PRODUCT_IMAGE_MAX_SIZE) return '产品图片不能超过 5MB'
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return ''
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}
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