92 lines
3.4 KiB
Swift
92 lines
3.4 KiB
Swift
//
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// Copyright 2026 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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private extension String {
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/// The path at which remote megaphone manifests are listed.
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static let manifestUrlPath = "dynamic/release-notes/release-notes-v2.json"
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}
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public protocol RemoteReleaseNotesServiceProtocol {
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/// Fetches release-notes manifest from manifestUrlPath
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func fetchManifests() async throws -> ([RemoteMegaphoneModel.Manifest], [RemoteAnnouncementModel.Manifest])
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/// Fetches release-notes for a specific translation and manifest Id
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func fetchTranslationParser(translationUrlPath: String) async throws -> ParamParser
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/// Downloads media included in a release notes manifest
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func downloadMedia(
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mediaRemoteUrlPath: String,
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mediaFileUrl: URL,
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translationId: String,
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) async throws -> Bool
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}
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class RemoteReleaseNotesService: RemoteReleaseNotesServiceProtocol {
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let signalService: any OWSSignalServiceProtocol
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init(signalService: any OWSSignalServiceProtocol) {
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self.signalService = signalService
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}
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func getUrlSession() -> OWSURLSessionProtocol {
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signalService.urlSessionForUpdates2()
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}
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func fetchManifests() async throws -> ([RemoteMegaphoneModel.Manifest], [RemoteAnnouncementModel.Manifest]) {
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let response = try await getUrlSession().performRequest(
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.manifestUrlPath,
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method: .get,
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)
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guard let parser = response.responseBodyParamParser else {
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throw OWSAssertionError("Missing or invalid body JSON for manifest!")
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}
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return try (RemoteMegaphoneModel.Manifest.parseFrom(parser: parser), RemoteAnnouncementModel.Manifest.parseFrom(parser: parser))
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}
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func fetchTranslationParser(translationUrlPath: String) async throws -> ParamParser {
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Logger.info("Fetching remote megaphone translation")
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let response = try await getUrlSession().performRequest(translationUrlPath, method: .get)
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guard let parser = response.responseBodyParamParser else {
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throw OWSAssertionError("Missing or invalid body JSON for translation!")
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}
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return parser
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}
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func downloadMedia(
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mediaRemoteUrlPath: String,
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mediaFileUrl: URL,
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translationId: String,
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) async throws -> Bool {
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do {
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if !FileManager.default.fileExists(atPath: mediaFileUrl.path) {
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Logger.info("Fetching remote release notes image")
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let response = try await getUrlSession().performDownload(
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mediaRemoteUrlPath,
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method: .get,
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)
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do {
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try FileManager.default.moveItem(
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at: response.downloadUrl,
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to: mediaFileUrl,
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)
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} catch let error {
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throw OWSAssertionError("Failed to move downloaded image! \(error)")
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}
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}
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return true
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} catch where error.httpStatusCode == 404 {
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owsFailDebug("Unexpectedly got 404 while fetching remote megaphone image for ID \(translationId)!")
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return false
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} catch let error as OWSHTTPError {
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owsFailDebug("Unexpectedly got error status code \(error.responseStatusCode) while fetching remote megaphone image for ID \(translationId)!")
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throw error
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}
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}
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}
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