Swiftgram/submodules/TelegramCallsUI/Sources/PresentationCallManager.swift
2020-08-04 23:08:27 +04:00

570 lines
27 KiB
Swift

import Foundation
import Postbox
import TelegramCore
import SyncCore
import SwiftSignalKit
import Display
import DeviceAccess
import TelegramPresentationData
import TelegramAudio
import TelegramVoip
import TelegramUIPreferences
import AccountContext
private func callKitIntegrationIfEnabled(_ integration: CallKitIntegration?, settings: VoiceCallSettings?) -> CallKitIntegration? {
let enabled = settings?.enableSystemIntegration ?? true
return enabled ? integration : nil
}
private func auxiliaryServers(appConfiguration: AppConfiguration) -> [CallAuxiliaryServer] {
guard let data = appConfiguration.data else {
return []
}
guard let servers = data["rtc_servers"] as? [[String: Any]] else {
return []
}
var result: [CallAuxiliaryServer] = []
for server in servers {
guard let host = server["host"] as? String else {
continue
}
guard let portString = server["port"] as? String else {
continue
}
guard let username = server["username"] as? String else {
continue
}
guard let password = server["password"] as? String else {
continue
}
guard let port = Int(portString) else {
continue
}
result.append(CallAuxiliaryServer(
host: host,
port: port,
connection: .stun
))
result.append(CallAuxiliaryServer(
host: host,
port: port,
connection: .turn(
username: username,
password: password
)
))
}
return result
}
private enum CurrentCall {
case none
case incomingRinging(CallSessionRingingState)
case ongoing(CallSession, OngoingCallContext)
var internalId: CallSessionInternalId? {
switch self {
case .none:
return nil
case let .incomingRinging(ringingState):
return ringingState.id
case let .ongoing(session, _):
return session.id
}
}
}
public final class PresentationCallManagerImpl: PresentationCallManager {
private let getDeviceAccessData: () -> (presentationData: PresentationData, present: (ViewController, Any?) -> Void, openSettings: () -> Void)
private let isMediaPlaying: () -> Bool
private let resumeMediaPlayback: () -> Void
private let accountManager: AccountManager
private let audioSession: ManagedAudioSession
private let callKitIntegration: CallKitIntegration?
private var currentCallValue: PresentationCallImpl?
private var currentCall: PresentationCallImpl? {
return self.currentCallValue
}
private var currentCallDisposable = MetaDisposable()
private let removeCurrentCallDisposable = MetaDisposable()
private var ringingStatesDisposable: Disposable?
private let hasActiveCallsPromise = ValuePromise<Bool>(false, ignoreRepeated: true)
public var hasActiveCalls: Signal<Bool, NoError> {
return self.hasActiveCallsPromise.get()
}
private let currentCallPromise = Promise<PresentationCall?>(nil)
public var currentCallSignal: Signal<PresentationCall?, NoError> {
return self.currentCallPromise.get()
}
private let startCallDisposable = MetaDisposable()
private var proxyServer: ProxyServerSettings?
private var proxyServerDisposable: Disposable?
private var callSettings: VoiceCallSettings?
private var callSettingsDisposable: Disposable?
private var resumeMedia: Bool = false
public static var voipMaxLayer: Int32 {
return OngoingCallContext.maxLayer
}
public static func voipVersions(includeExperimental: Bool, includeReference: Bool) -> [(version: String, supportsVideo: Bool)] {
return OngoingCallContext.versions(includeExperimental: includeExperimental, includeReference: includeReference)
}
public init(accountManager: AccountManager, getDeviceAccessData: @escaping () -> (presentationData: PresentationData, present: (ViewController, Any?) -> Void, openSettings: () -> Void), isMediaPlaying: @escaping () -> Bool, resumeMediaPlayback: @escaping () -> Void, audioSession: ManagedAudioSession, activeAccounts: Signal<[Account], NoError>) {
self.getDeviceAccessData = getDeviceAccessData
self.accountManager = accountManager
self.audioSession = audioSession
self.isMediaPlaying = isMediaPlaying
self.resumeMediaPlayback = resumeMediaPlayback
var startCallImpl: ((Account, UUID, String, Bool) -> Signal<Bool, NoError>)?
var answerCallImpl: ((UUID) -> Void)?
var endCallImpl: ((UUID) -> Signal<Bool, NoError>)?
var setCallMutedImpl: ((UUID, Bool) -> Void)?
var audioSessionActivationChangedImpl: ((Bool) -> Void)?
self.callKitIntegration = CallKitIntegration(startCall: { account, uuid, handle, isVideo in
if let startCallImpl = startCallImpl {
return startCallImpl(account, uuid, handle, isVideo)
} else {
return .single(false)
}
}, answerCall: { uuid in
answerCallImpl?(uuid)
}, endCall: { uuid in
if let endCallImpl = endCallImpl {
return endCallImpl(uuid)
} else {
return .single(false)
}
}, setCallMuted: { uuid, isMuted in
setCallMutedImpl?(uuid, isMuted)
}, audioSessionActivationChanged: { value in
audioSessionActivationChangedImpl?(value)
})
let enableCallKit = accountManager.sharedData(keys: [ApplicationSpecificSharedDataKeys.voiceCallSettings])
|> map { sharedData -> Bool in
let settings = sharedData.entries[ApplicationSpecificSharedDataKeys.voiceCallSettings] as? VoiceCallSettings ?? .defaultSettings
return settings.enableSystemIntegration
}
|> distinctUntilChanged
let enabledMicrophoneAccess = Signal<Bool, NoError> { subscriber in
subscriber.putNext(DeviceAccess.isMicrophoneAccessAuthorized() == true)
subscriber.putCompletion()
return EmptyDisposable
}
|> runOn(Queue.mainQueue())
let ringingStatesByAccount: Signal<[(Account, CallSessionRingingState, NetworkType)], NoError> = activeAccounts
|> mapToSignal { accounts -> Signal<[(Account, CallSessionRingingState, NetworkType)], NoError> in
return combineLatest(accounts.map { account -> Signal<(Account, [CallSessionRingingState], NetworkType), NoError> in
return combineLatest(account.callSessionManager.ringingStates(), account.networkType)
|> map { ringingStates, networkType -> (Account, [CallSessionRingingState], NetworkType) in
return (account, ringingStates, networkType)
}
})
|> map { ringingStatesByAccount -> [(Account, CallSessionRingingState, NetworkType)] in
var result: [(Account, CallSessionRingingState, NetworkType)] = []
for (account, states, networkType) in ringingStatesByAccount {
for state in states {
result.append((account, state, networkType))
}
}
return result
}
}
self.ringingStatesDisposable = (combineLatest(ringingStatesByAccount, enableCallKit, enabledMicrophoneAccess)
|> mapToSignal { ringingStatesByAccount, enableCallKit, enabledMicrophoneAccess -> Signal<([(Account, Peer, CallSessionRingingState, Bool, NetworkType)], Bool), NoError> in
if ringingStatesByAccount.isEmpty {
return .single(([], enableCallKit && enabledMicrophoneAccess))
} else {
return combineLatest(ringingStatesByAccount.map { account, state, networkType -> Signal<(Account, Peer, CallSessionRingingState, Bool, NetworkType)?, NoError> in
return account.postbox.transaction { transaction -> (Account, Peer, CallSessionRingingState, Bool, NetworkType)? in
if let peer = transaction.getPeer(state.peerId) {
return (account, peer, state, transaction.isPeerContact(peerId: state.peerId), networkType)
} else {
return nil
}
}
})
|> map { ringingStatesByAccount -> ([(Account, Peer, CallSessionRingingState, Bool, NetworkType)], Bool) in
return (ringingStatesByAccount.compactMap({ $0 }), enableCallKit && enabledMicrophoneAccess)
}
}
}
|> deliverOnMainQueue).start(next: { [weak self] ringingStates, enableCallKit in
self?.ringingStatesUpdated(ringingStates, enableCallKit: enableCallKit)
})
startCallImpl = { [weak self] account, uuid, handle, isVideo in
if let strongSelf = self, let userId = Int32(handle) {
return strongSelf.startCall(account: account, peerId: PeerId(namespace: Namespaces.Peer.CloudUser, id: userId), isVideo: isVideo, internalId: uuid)
|> take(1)
|> map { result -> Bool in
return result
}
} else {
return .single(false)
}
}
answerCallImpl = { [weak self] uuid in
if let strongSelf = self {
strongSelf.currentCall?.answer()
}
}
endCallImpl = { [weak self] uuid in
if let strongSelf = self, let currentCall = strongSelf.currentCall {
return currentCall.hangUp()
} else {
return .single(false)
}
}
setCallMutedImpl = { [weak self] uuid, isMuted in
if let strongSelf = self, let currentCall = strongSelf.currentCall {
currentCall.setIsMuted(isMuted)
}
}
audioSessionActivationChangedImpl = { [weak self] value in
if value {
self?.audioSession.callKitActivatedAudioSession()
} else {
self?.audioSession.callKitDeactivatedAudioSession()
}
}
self.proxyServerDisposable = (accountManager.sharedData(keys: [SharedDataKeys.proxySettings])
|> deliverOnMainQueue).start(next: { [weak self] sharedData in
if let strongSelf = self, let settings = sharedData.entries[SharedDataKeys.proxySettings] as? ProxySettings {
if settings.enabled && settings.useForCalls {
strongSelf.proxyServer = settings.activeServer
} else {
strongSelf.proxyServer = nil
}
}
})
self.callSettingsDisposable = (accountManager.sharedData(keys: [ApplicationSpecificSharedDataKeys.voiceCallSettings])
|> deliverOnMainQueue).start(next: { [weak self] sharedData in
if let strongSelf = self {
strongSelf.callSettings = sharedData.entries[ApplicationSpecificSharedDataKeys.voiceCallSettings] as? VoiceCallSettings ?? .defaultSettings
}
})
}
deinit {
self.currentCallDisposable.dispose()
self.ringingStatesDisposable?.dispose()
self.removeCurrentCallDisposable.dispose()
self.startCallDisposable.dispose()
self.proxyServerDisposable?.dispose()
self.callSettingsDisposable?.dispose()
}
private func ringingStatesUpdated(_ ringingStates: [(Account, Peer, CallSessionRingingState, Bool, NetworkType)], enableCallKit: Bool) {
if let firstState = ringingStates.first {
if self.currentCall == nil {
self.currentCallDisposable.set((combineLatest(firstState.0.postbox.preferencesView(keys: [PreferencesKeys.voipConfiguration, ApplicationSpecificPreferencesKeys.voipDerivedState, PreferencesKeys.appConfiguration]) |> take(1), accountManager.sharedData(keys: [SharedDataKeys.autodownloadSettings, ApplicationSpecificSharedDataKeys.experimentalUISettings]) |> take(1))
|> deliverOnMainQueue).start(next: { [weak self] preferences, sharedData in
guard let strongSelf = self else {
return
}
let configuration = preferences.values[PreferencesKeys.voipConfiguration] as? VoipConfiguration ?? .defaultValue
let derivedState = preferences.values[ApplicationSpecificPreferencesKeys.voipDerivedState] as? VoipDerivedState ?? .default
let autodownloadSettings = sharedData.entries[SharedDataKeys.autodownloadSettings] as? AutodownloadSettings ?? .defaultSettings
let experimentalSettings = sharedData.entries[ApplicationSpecificSharedDataKeys.experimentalUISettings] as? ExperimentalUISettings ?? .defaultSettings
let appConfiguration = preferences.values[PreferencesKeys.appConfiguration] as? AppConfiguration ?? AppConfiguration.defaultValue
let call = PresentationCallImpl(
account: firstState.0,
audioSession: strongSelf.audioSession,
callSessionManager: firstState.0.callSessionManager,
callKitIntegration: enableCallKit ? callKitIntegrationIfEnabled(strongSelf.callKitIntegration, settings: strongSelf.callSettings) : nil,
serializedData: configuration.serializedData,
dataSaving: effectiveDataSaving(for: strongSelf.callSettings, autodownloadSettings: autodownloadSettings),
derivedState: derivedState,
getDeviceAccessData: strongSelf.getDeviceAccessData,
initialState: nil,
internalId: firstState.2.id,
peerId: firstState.2.peerId,
isOutgoing: false,
peer: firstState.1,
proxyServer: strongSelf.proxyServer,
auxiliaryServers: auxiliaryServers(appConfiguration: appConfiguration),
currentNetworkType: firstState.4,
updatedNetworkType: firstState.0.networkType,
startWithVideo: firstState.2.isVideo,
isVideoPossible: firstState.2.isVideoPossible,
enableHighBitrateVideoCalls: experimentalSettings.enableHighBitrateVideoCalls
)
strongSelf.updateCurrentCall(call)
strongSelf.currentCallPromise.set(.single(call))
strongSelf.hasActiveCallsPromise.set(true)
strongSelf.removeCurrentCallDisposable.set((call.canBeRemoved
|> deliverOnMainQueue).start(next: { [weak self, weak call] value in
if value, let strongSelf = self, let call = call {
if strongSelf.currentCall === call {
strongSelf.updateCurrentCall(nil)
strongSelf.currentCallPromise.set(.single(nil))
strongSelf.hasActiveCallsPromise.set(false)
}
}
}))
}))
} else {
for (account, _, state, _, _) in ringingStates {
if state.id != self.currentCall?.internalId {
account.callSessionManager.drop(internalId: state.id, reason: .missed, debugLog: .single(nil))
}
}
}
}
}
public func requestCall(context: AccountContext, peerId: PeerId, isVideo: Bool, endCurrentIfAny: Bool) -> RequestCallResult {
let account = context.account
if let call = self.currentCall, !endCurrentIfAny {
return .alreadyInProgress(call.peerId)
}
if let _ = callKitIntegrationIfEnabled(self.callKitIntegration, settings: self.callSettings) {
let begin: () -> Void = { [weak self] in
guard let strongSelf = self else {
return
}
let (presentationData, present, openSettings) = strongSelf.getDeviceAccessData()
let accessEnabledSignal: Signal<Bool, NoError> = Signal { subscriber in
DeviceAccess.authorizeAccess(to: .microphone(.voiceCall), presentationData: presentationData, present: { c, a in
present(c, a)
}, openSettings: {
openSettings()
}, { value in
if isVideo {
DeviceAccess.authorizeAccess(to: .camera, presentationData: presentationData, present: { c, a in
present(c, a)
}, openSettings: {
openSettings()
}, { value in
subscriber.putNext(value)
subscriber.putCompletion()
})
} else {
subscriber.putNext(value)
subscriber.putCompletion()
}
})
return EmptyDisposable
}
|> runOn(Queue.mainQueue())
let postbox = account.postbox
strongSelf.startCallDisposable.set((accessEnabledSignal
|> mapToSignal { accessEnabled -> Signal<Peer?, NoError> in
if !accessEnabled {
return .single(nil)
}
return postbox.loadedPeerWithId(peerId)
|> take(1)
|> map(Optional.init)
}
|> deliverOnMainQueue).start(next: { peer in
guard let strongSelf = self, let peer = peer else {
return
}
strongSelf.callKitIntegration?.startCall(account: account, peerId: peerId, isVideo: isVideo, displayTitle: peer.debugDisplayTitle)
}))
}
if let currentCall = self.currentCall {
self.callKitIntegration?.dropCall(uuid: currentCall.internalId)
self.startCallDisposable.set((currentCall.hangUp()
|> deliverOnMainQueue).start(next: { _ in
begin()
}))
} else {
begin()
}
} else {
let begin: () -> Void = { [weak self] in
guard let strongSelf = self else {
return
}
let _ = strongSelf.startCall(account: account, peerId: peerId, isVideo: isVideo).start()
}
if let currentCall = self.currentCall {
self.startCallDisposable.set((currentCall.hangUp()
|> deliverOnMainQueue).start(next: { _ in
begin()
}))
} else {
begin()
}
}
return .requested
}
private func startCall(
account: Account,
peerId: PeerId,
isVideo: Bool,
internalId: CallSessionInternalId = CallSessionInternalId()
) -> Signal<Bool, NoError> {
let (presentationData, present, openSettings) = self.getDeviceAccessData()
let accessEnabledSignal: Signal<Bool, NoError> = Signal { subscriber in
DeviceAccess.authorizeAccess(to: .microphone(.voiceCall), presentationData: presentationData, present: { c, a in
present(c, a)
}, openSettings: {
openSettings()
}, { value in
if isVideo {
DeviceAccess.authorizeAccess(to: .camera, presentationData: presentationData, present: { c, a in
present(c, a)
}, openSettings: {
openSettings()
}, { value in
subscriber.putNext(value)
subscriber.putCompletion()
})
} else {
subscriber.putNext(value)
subscriber.putCompletion()
}
})
return EmptyDisposable
}
|> runOn(Queue.mainQueue())
let networkType = account.networkType
let accountManager = self.accountManager
return accessEnabledSignal
|> mapToSignal { [weak self] accessEnabled -> Signal<Bool, NoError> in
if !accessEnabled {
return .single(false)
}
let request = account.postbox.transaction { transaction -> VideoCallsConfiguration in
let appConfiguration: AppConfiguration = transaction.getPreferencesEntry(key: PreferencesKeys.appConfiguration) as? AppConfiguration ?? AppConfiguration.defaultValue
return VideoCallsConfiguration(appConfiguration: appConfiguration)
}
|> mapToSignal { callsConfiguration -> Signal<CallSessionInternalId, NoError> in
let isVideoPossible: Bool
switch callsConfiguration.videoCallsSupport {
case .disabled:
isVideoPossible = isVideo
case .full:
isVideoPossible = true
case .onlyVideo:
isVideoPossible = isVideo
}
return account.callSessionManager.request(peerId: peerId, isVideo: isVideo, enableVideo: isVideoPossible, internalId: internalId)
}
return (combineLatest(queue: .mainQueue(), request, networkType |> take(1), account.postbox.peerView(id: peerId) |> map { peerView -> Bool in
return peerView.peerIsContact
} |> take(1), account.postbox.preferencesView(keys: [PreferencesKeys.voipConfiguration, ApplicationSpecificPreferencesKeys.voipDerivedState, PreferencesKeys.appConfiguration]) |> take(1), accountManager.sharedData(keys: [SharedDataKeys.autodownloadSettings, ApplicationSpecificSharedDataKeys.experimentalUISettings]) |> take(1))
|> deliverOnMainQueue
|> beforeNext { internalId, currentNetworkType, isContact, preferences, sharedData in
if let strongSelf = self, accessEnabled {
if let currentCall = strongSelf.currentCall {
currentCall.rejectBusy()
}
let configuration = preferences.values[PreferencesKeys.voipConfiguration] as? VoipConfiguration ?? .defaultValue
let derivedState = preferences.values[ApplicationSpecificPreferencesKeys.voipDerivedState] as? VoipDerivedState ?? .default
let autodownloadSettings = sharedData.entries[SharedDataKeys.autodownloadSettings] as? AutodownloadSettings ?? .defaultSettings
let appConfiguration = preferences.values[PreferencesKeys.appConfiguration] as? AppConfiguration ?? AppConfiguration.defaultValue
let callsConfiguration = VideoCallsConfiguration(appConfiguration: appConfiguration)
let isVideoPossible: Bool
switch callsConfiguration.videoCallsSupport {
case .disabled:
isVideoPossible = isVideo
case .full:
isVideoPossible = true
case .onlyVideo:
isVideoPossible = isVideo
}
let experimentalSettings = sharedData.entries[ApplicationSpecificSharedDataKeys.experimentalUISettings] as? ExperimentalUISettings ?? .defaultSettings
let call = PresentationCallImpl(
account: account,
audioSession: strongSelf.audioSession,
callSessionManager: account.callSessionManager,
callKitIntegration: callKitIntegrationIfEnabled(
strongSelf.callKitIntegration,
settings: strongSelf.callSettings
),
serializedData: configuration.serializedData,
dataSaving: effectiveDataSaving(for: strongSelf.callSettings, autodownloadSettings: autodownloadSettings),
derivedState: derivedState,
getDeviceAccessData: strongSelf.getDeviceAccessData,
initialState: nil,
internalId: internalId,
peerId: peerId,
isOutgoing: true,
peer: nil,
proxyServer: strongSelf.proxyServer,
auxiliaryServers: auxiliaryServers(appConfiguration: appConfiguration),
currentNetworkType: currentNetworkType,
updatedNetworkType: account.networkType,
startWithVideo: isVideo,
isVideoPossible: isVideoPossible,
enableHighBitrateVideoCalls: experimentalSettings.enableHighBitrateVideoCalls
)
strongSelf.updateCurrentCall(call)
strongSelf.currentCallPromise.set(.single(call))
strongSelf.hasActiveCallsPromise.set(true)
strongSelf.removeCurrentCallDisposable.set((call.canBeRemoved
|> deliverOnMainQueue).start(next: { [weak call] value in
if value, let strongSelf = self, let call = call {
if strongSelf.currentCall === call {
strongSelf.updateCurrentCall(nil)
strongSelf.currentCallPromise.set(.single(nil))
strongSelf.hasActiveCallsPromise.set(false)
}
}
}))
}
})
|> mapToSignal { value -> Signal<Bool, NoError> in
return .single(true)
}
}
}
private func updateCurrentCall(_ value: PresentationCallImpl?) {
let wasEmpty = self.currentCallValue == nil
let isEmpty = value == nil
if wasEmpty && !isEmpty {
self.resumeMedia = self.isMediaPlaying()
}
self.currentCallValue = value
if !wasEmpty && isEmpty && self.resumeMedia {
self.resumeMedia = false
self.resumeMediaPlayback()
}
}
}