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54 lines
1.5 KiB
54 lines
1.5 KiB
3 years ago
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import { warning } from '../vc-util/warning';
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import type { RcFile } from './interface';
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export default (file: RcFile, acceptedFiles: string | string[]) => {
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if (file && acceptedFiles) {
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const acceptedFilesArray = Array.isArray(acceptedFiles)
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? acceptedFiles
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: acceptedFiles.split(',');
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const fileName = file.name || '';
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const mimeType = file.type || '';
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const baseMimeType = mimeType.replace(/\/.*$/, '');
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return acceptedFilesArray.some(type => {
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const validType = type.trim();
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// This is something like */*,* allow all files
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if (/^\*(\/\*)?$/.test(type)) {
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return true;
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}
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// like .jpg, .png
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if (validType.charAt(0) === '.') {
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const lowerFileName = fileName.toLowerCase();
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const lowerType = validType.toLowerCase();
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let affixList = [lowerType];
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if (lowerType === '.jpg' || lowerType === '.jpeg') {
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affixList = ['.jpg', '.jpeg'];
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}
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return affixList.some(affix => lowerFileName.endsWith(affix));
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}
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// This is something like a image/* mime type
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if (/\/\*$/.test(validType)) {
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return baseMimeType === validType.replace(/\/.*$/, '');
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}
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// Full match
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if (mimeType === validType) {
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return true;
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}
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// Invalidate type should skip
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if (/^\w+$/.test(validType)) {
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warning(false, `Upload takes an invalidate 'accept' type '${validType}'.Skip for check.`);
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return true;
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}
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return false;
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});
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}
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return true;
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};
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