46 lines
1.4 KiB
TypeScript
46 lines
1.4 KiB
TypeScript
export async function fetchAuthenticatedMediaBlob(accessUrl: string, token: string, mimeType?: string) {
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const response = await fetch(accessUrl, {
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headers: { Authorization: `Bearer ${token}` }
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});
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if (!response.ok) {
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throw new Error('Не удалось загрузить файл');
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}
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const raw = await response.blob();
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if (mimeType && (!raw.type || raw.type === 'application/octet-stream')) {
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return new Blob([await raw.arrayBuffer()], { type: mimeType });
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}
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return raw;
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}
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export function createBlobObjectUrl(blob: Blob) {
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return URL.createObjectURL(blob);
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}
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export function revokeBlobObjectUrl(url?: string) {
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if (url?.startsWith('blob:')) {
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URL.revokeObjectURL(url);
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}
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}
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export function triggerBlobDownload(blob: Blob, fileName: string) {
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const objectUrl = URL.createObjectURL(blob);
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const anchor = document.createElement('a');
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anchor.href = objectUrl;
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anchor.download = fileName;
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anchor.rel = 'noopener';
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document.body.appendChild(anchor);
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anchor.click();
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anchor.remove();
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URL.revokeObjectURL(objectUrl);
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}
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export function mediaExpiresAtMs(expiresAt?: string) {
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if (!expiresAt) return Date.now() + 14 * 60_000;
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const parsed = Date.parse(expiresAt);
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return Number.isFinite(parsed) ? parsed : Date.now() + 14 * 60_000;
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}
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export function shouldRefreshMedia(expiresAtMs: number, bufferMs = 60_000) {
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return expiresAtMs - Date.now() <= bufferMs;
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}
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