mirror of
https://github.com/vector-im/element-ios.git
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125 lines
5.4 KiB
Swift
125 lines
5.4 KiB
Swift
//
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// Copyright 2020 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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/// `HomeserverConfigurationBuilder` build `HomeserverConfiguration` objects according to injected inputs
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@objcMembers
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final class HomeserverConfigurationBuilder: NSObject {
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// MARK: - Properties
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private let vectorWellKnownParser = VectorWellKnownParser()
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// MARK: - Public
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/// Create an `HomeserverConfiguration` from an HS Well-Known when possible otherwise it takes hardcoded values from BuildSettings by default.
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func build(from wellKnown: MXWellKnown?) -> HomeserverConfiguration {
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let isE2EEByDefaultEnabled: Bool
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let jitsiPreferredDomain: String
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var vectorWellKnownEncryptionConfiguration: VectorWellKnownEncryptionConfiguration?
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var vectorWellKnownJitsiConfiguration: VectorWellKnownJitsiConfiguration?
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if let wellKnown = wellKnown, let vectorWellKnown = self.vectorWellKnownParser.parse(jsonDictionary: wellKnown.jsonDictionary()) {
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vectorWellKnownEncryptionConfiguration = self.getEncryptionConfiguration(from: vectorWellKnown)
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vectorWellKnownJitsiConfiguration = self.getJitsiConfiguration(from: vectorWellKnown)
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}
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// Encryption configuration
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if let vectorWellKnownEncryptionConfig = vectorWellKnownEncryptionConfiguration {
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isE2EEByDefaultEnabled = vectorWellKnownEncryptionConfig.isE2EEByDefaultEnabled
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} else {
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// Enable E2EE by default when there is no value
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isE2EEByDefaultEnabled = true
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}
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// Jitsi configuration
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let jitsiServerURL: URL
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let hardcodedJitsiServerURL: URL = BuildSettings.jitsiServerUrl
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if let vectorWellKnownJitsiConfig = vectorWellKnownJitsiConfiguration {
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jitsiPreferredDomain = vectorWellKnownJitsiConfig.preferredDomain
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jitsiServerURL = self.jitsiServerURL(from: jitsiPreferredDomain) ?? hardcodedJitsiServerURL
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} else {
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guard let hardcodedJitsiDomain = hardcodedJitsiServerURL.host else {
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fatalError("[HomeserverConfigurationBuilder] Fail to get Jitsi domain from hardcoded Jitsi URL")
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}
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jitsiPreferredDomain = hardcodedJitsiDomain
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jitsiServerURL = hardcodedJitsiServerURL
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}
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// Create HomeserverConfiguration
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let jitsiConfiguration = HomeserverJitsiConfiguration(serverDomain: jitsiPreferredDomain,
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serverURL: jitsiServerURL)
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return HomeserverConfiguration(jitsi: jitsiConfiguration, isE2EEByDefaultEnabled: isE2EEByDefaultEnabled)
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}
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// MARK: - Private
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private func getJitsiConfiguration(from vectorWellKnown: VectorWellKnown) -> VectorWellKnownJitsiConfiguration? {
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let jitsiConfiguration: VectorWellKnownJitsiConfiguration?
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if let lastJitsiConfiguration = vectorWellKnown.jitsi {
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jitsiConfiguration = lastJitsiConfiguration
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} else if let deprecatedJitsiConfiguration = vectorWellKnown.deprecatedJitsi {
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NSLog("[HomeserverConfigurationBuilder] getJitsiConfiguration - Use deprecated configuration")
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jitsiConfiguration = deprecatedJitsiConfiguration
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} else {
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NSLog("[HomeserverConfigurationBuilder] getJitsiConfiguration - No configuration found")
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jitsiConfiguration = nil
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}
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return jitsiConfiguration
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}
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private func getEncryptionConfiguration(from vectorWellKnown: VectorWellKnown) -> VectorWellKnownEncryptionConfiguration? {
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let encryptionConfiguration: VectorWellKnownEncryptionConfiguration?
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if let lastEncryptionConfiguration = vectorWellKnown.encryption {
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encryptionConfiguration = lastEncryptionConfiguration
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} else if let deprecatedEncryptionConfiguration = vectorWellKnown.deprecatedEncryption {
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NSLog("[HomeserverConfigurationBuilder] getEncryptionConfiguration - Use deprecated configuration")
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encryptionConfiguration = deprecatedEncryptionConfiguration
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} else {
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NSLog("[HomeserverConfigurationBuilder] getEncryptionConfiguration - No configuration found")
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encryptionConfiguration = nil
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}
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return encryptionConfiguration
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}
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private func jitsiServerURL(from jitsiServerDomain: String) -> URL? {
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let jitsiStringURL: String
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if jitsiServerDomain.starts(with: "http") {
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jitsiStringURL = jitsiServerDomain
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} else {
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jitsiStringURL = "https://\(jitsiServerDomain)"
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}
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guard let jitsiServerURL = URL(string: jitsiStringURL) else {
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NSLog("[HomeserverConfigurationBuilder] Jitsi server URL is not valid")
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return nil
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}
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return jitsiServerURL
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}
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}
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