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46 lines
1.1 KiB
46 lines
1.1 KiB
2 years ago
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function encodeCharacter (character) {
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return character.charCodeAt(0).toString(32)
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}
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function encodeFilename (name) {
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let suffix = ''
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return name.replace(/[^A-Z0-9]/ig, (character) => {
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suffix += `-${encodeCharacter(character)}`
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return '/'
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}) + suffix
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}
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/**
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* Takes a file object and turns it into fileID, by converting file.name to lowercase,
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* removing extra characters and adding type, size and lastModified
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*
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* @param {object} file
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* @returns {string} the fileID
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*/
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export default function generateFileID (file) {
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// It's tempting to do `[items].filter(Boolean).join('-')` here, but that
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// is slower! simple string concatenation is fast
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let id = 'uppy'
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if (typeof file.name === 'string') {
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id += `-${encodeFilename(file.name.toLowerCase())}`
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}
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if (file.type !== undefined) {
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id += `-${file.type}`
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}
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if (file.meta && typeof file.meta.relativePath === 'string') {
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id += `-${encodeFilename(file.meta.relativePath.toLowerCase())}`
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}
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if (file.data.size !== undefined) {
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id += `-${file.data.size}`
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}
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if (file.data.lastModified !== undefined) {
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id += `-${file.data.lastModified}`
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}
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return id
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}
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