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85b5ec4579
## Summary Allows attachments to be loaded on-the-fly in the content extension if they are not present. ## Link to pull request in Documentation repository Documentation: home-assistant/companion.home-assistant#510 ## Any other notes - Adds `lazy` as an option to the `attachment` dictionary. When true, this prevents the attachment from being downloaded except when displayed in the content extension. This is similar, but not identical, to hide-thumbnail. Hiding the thumbnail still uses the internal storage of the notifications which are limited to e.g. 50mb. However, we'd still want to pre-load those attachments even if the thumbnail is hidden. - Retries non-lazy attachments which failed due to a network error when the content extension opens.
45 lines
1.5 KiB
Swift
45 lines
1.5 KiB
Swift
import Foundation
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import PromiseKit
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import UserNotifications
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final class NotificationAttachmentParserURL: NotificationAttachmentParser {
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enum URLError: LocalizedError {
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case noURL
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case invalidURL
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var errorDescription: String? {
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switch self {
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case .noURL: return L10n.NotificationService.Parser.Url.noUrl
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case .invalidURL: return L10n.NotificationService.Parser.Url.invalidUrl
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}
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}
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}
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func attachmentInfo(from content: UNNotificationContent) -> Guarantee<NotificationAttachmentParserResult> {
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guard let attachment = content.userInfo["attachment"] as? [String: Any] else {
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return .value(.missing)
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}
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guard let urlString = attachment["url"] as? String else {
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return .value(.rejected(URLError.noURL))
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}
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guard let url = URL(string: urlString) else {
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return .value(.rejected(URLError.invalidURL))
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}
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let needsAuth: Bool = urlString.hasPrefix("/")
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let contentType = (attachment["content-type"] as? String).flatMap(NotificationAttachmentInfo.contentType(for:))
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let hideThumbnail = attachment["hide-thumbnail"] as? Bool
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let lazy = attachment["lazy"] as? Bool == true
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return .value(.fulfilled(.init(
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url: url,
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needsAuth: needsAuth,
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typeHint: contentType,
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hideThumbnail: hideThumbnail,
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lazy: lazy
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)))
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}
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}
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