Elijah
724d70e58b
Some checks failed
Automated Container Build / build-and-push (push) Failing after 12s
41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import isReactNative from './isReactNative.js'
|
|
|
|
// TODO: Differenciate between input types
|
|
|
|
/**
|
|
* Generate a fingerprint for a file which will be used the store the endpoint
|
|
*
|
|
* @param {File} file
|
|
* @param {Object} options
|
|
* @param {Function} callback
|
|
*/
|
|
export default function fingerprint(file, options) {
|
|
if (isReactNative()) {
|
|
return Promise.resolve(reactNativeFingerprint(file, options))
|
|
}
|
|
|
|
return Promise.resolve(
|
|
['tus-br', file.name, file.type, file.size, file.lastModified, options.endpoint].join('-'),
|
|
)
|
|
}
|
|
|
|
function reactNativeFingerprint(file, options) {
|
|
const exifHash = file.exif ? hashCode(JSON.stringify(file.exif)) : 'noexif'
|
|
return ['tus-rn', file.name || 'noname', file.size || 'nosize', exifHash, options.endpoint].join(
|
|
'/',
|
|
)
|
|
}
|
|
|
|
function hashCode(str) {
|
|
// from https://stackoverflow.com/a/8831937/151666
|
|
let hash = 0
|
|
if (str.length === 0) {
|
|
return hash
|
|
}
|
|
for (let i = 0; i < str.length; i++) {
|
|
const char = str.charCodeAt(i)
|
|
hash = (hash << 5) - hash + char
|
|
hash &= hash // Convert to 32bit integer
|
|
}
|
|
return hash
|
|
}
|