Elijah
724d70e58b
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Automated Container Build / build-and-push (push) Failing after 12s
71 lines
2 KiB
JavaScript
71 lines
2 KiB
JavaScript
let hasStorage = false
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try {
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// Note: localStorage does not exist in the Web Worker's context, so we must use window here.
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hasStorage = 'localStorage' in window
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// Attempt to store and read entries from the local storage to detect Private
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// Mode on Safari on iOS (see #49)
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// If the key was not used before, we remove it from local storage again to
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// not cause confusion where the entry came from.
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const key = 'tusSupport'
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const originalValue = localStorage.getItem(key)
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localStorage.setItem(key, originalValue)
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if (originalValue === null) localStorage.removeItem(key)
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} catch (e) {
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// If we try to access localStorage inside a sandboxed iframe, a SecurityError
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// is thrown. When in private mode on iOS Safari, a QuotaExceededError is
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// thrown (see #49)
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if (e.code === e.SECURITY_ERR || e.code === e.QUOTA_EXCEEDED_ERR) {
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hasStorage = false
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} else {
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throw e
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}
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}
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export const canStoreURLs = hasStorage
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export class WebStorageUrlStorage {
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findAllUploads() {
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const results = this._findEntries('tus::')
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return Promise.resolve(results)
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}
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findUploadsByFingerprint(fingerprint) {
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const results = this._findEntries(`tus::${fingerprint}::`)
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return Promise.resolve(results)
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}
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removeUpload(urlStorageKey) {
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localStorage.removeItem(urlStorageKey)
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return Promise.resolve()
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}
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addUpload(fingerprint, upload) {
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const id = Math.round(Math.random() * 1e12)
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const key = `tus::${fingerprint}::${id}`
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localStorage.setItem(key, JSON.stringify(upload))
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return Promise.resolve(key)
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}
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_findEntries(prefix) {
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const results = []
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for (let i = 0; i < localStorage.length; i++) {
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const key = localStorage.key(i)
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if (key.indexOf(prefix) !== 0) continue
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try {
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const upload = JSON.parse(localStorage.getItem(key))
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upload.urlStorageKey = key
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results.push(upload)
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} catch (_e) {
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// The JSON parse error is intentionally ignored here, so a malformed
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// entry in the storage cannot prevent an upload.
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}
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}
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return results
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}
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}
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