Files
advanced-camera-card/src/utils/download.ts
T

64 lines
2.2 KiB
TypeScript

import { CameraManager } from '../camera-manager/manager';
import { localize } from '../localize/localize';
import { ExtendedHomeAssistant, FrigateCardError } from '../types';
import { ViewMedia } from '../view/media';
import { errorToConsole } from './basic';
import { homeAssistantSignPath } from './ha';
export const downloadURL = (url: string, filename = 'download'): void => {
// The download attribute only works on the same origin.
// See: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attributes
const isSameOrigin = new URL(url).origin === window.location.origin;
const dataURL = url.startsWith('data:');
if (
navigator.userAgent.startsWith('Home Assistant/') ||
navigator.userAgent.startsWith('HomeAssistant/') ||
(!isSameOrigin && !dataURL)
) {
// Home Assistant companion apps cannot download files without opening a
// new browser window.
//
// User-agents are specified here:
// - Android: https://github.com/home-assistant/android/blob/b285c9525dd4837a82db931c1b2321c0511494e6/common/src/main/java/io/homeassistant/companion/android/common/data/HomeAssistantApis.kt#L23
// - iOS: https://github.com/home-assistant/iOS/blob/master/Sources/Shared/API/HAAPI.swift#L75
window.open(url, '_blank');
} else {
// Use the HTML5 download attribute to prevent a new window from
// temporarily opening.
const link = document.createElement('a');
link.setAttribute('download', filename);
link.href = url;
link.click();
link.remove();
}
};
export const downloadMedia = async (
hass: ExtendedHomeAssistant,
cameraManager: CameraManager,
media: ViewMedia,
): Promise<void> => {
const download = await cameraManager.getMediaDownloadPath(media);
if (!download) {
throw new FrigateCardError(localize('error.download_no_media'));
}
let finalURL = download.endpoint;
if (download.sign) {
let response: string | null | undefined;
try {
response = await homeAssistantSignPath(hass, download.endpoint);
} catch (e) {
errorToConsole(e as Error);
}
if (!response) {
throw new FrigateCardError(localize('error.download_sign_failed'));
}
finalURL = response;
}
downloadURL(finalURL);
};