linphone-ios/Linphone/UI/Call/ViewModel/CallViewModel.swift
2024-01-25 12:14:14 +01:00

410 lines
12 KiB
Swift

/*
* Copyright (c) 2010-2020 Belledonne Communications SARL.
*
* This file is part of linphone-iphone
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import SwiftUI
import linphonesw
import AVFAudio
import Combine
class CallViewModel: ObservableObject {
var coreContext = CoreContext.shared
var telecomManager = TelecomManager.shared
@Published var displayName: String = "Example Linphone"
@Published var direction: Call.Dir = .Outgoing
@Published var remoteAddressString: String = "example.linphone@sip.linphone.org"
@Published var remoteAddress: Address?
@Published var avatarModel: ContactAvatarModel?
@Published var micMutted: Bool = false
@Published var isRecording: Bool = false
@Published var isRemoteRecording: Bool = false
@Published var isPaused: Bool = false
@Published var timeElapsed: Int = 0
@Published var zrtpPopupDisplayed: Bool = false
@Published var upperCaseAuthTokenToRead = ""
@Published var upperCaseAuthTokenToListen = ""
@Published var isMediaEncrypted: Bool = false
@Published var isZrtpPq: Bool = false
@Published var isRemoteDeviceTrusted: Bool = false
@Published var selectedCall: Call? = nil
var calls: [Call] = []
let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
var currentCall: Call?
private var callSuscriptions = Set<AnyCancellable?>()
init() {
do {
try AVAudioSession.sharedInstance().setCategory(.playAndRecord, mode: .voiceChat, options: .allowBluetooth)
} catch _ {
}
resetCallView()
}
func enableAVAudioSession() {
do {
try AVAudioSession.sharedInstance().setActive(true)
} catch _ {
}
}
func disableAVAudioSession(){
do {
try AVAudioSession.sharedInstance().setActive(false)
} catch _ {
}
}
func resetCallView() {
coreContext.doOnCoreQueue { core in
if core.currentCall != nil && core.currentCall!.remoteAddress != nil {
self.currentCall = core.currentCall
DispatchQueue.main.async {
self.direction = self.currentCall!.dir
self.remoteAddressString = String(self.currentCall!.remoteAddress!.asStringUriOnly().dropFirst(4))
self.remoteAddress = self.currentCall!.remoteAddress!
let friend = ContactsManager.shared.getFriendWithAddress(address: self.currentCall!.remoteAddress!)
if friend != nil && friend!.address != nil && friend!.address!.displayName != nil {
self.displayName = friend!.address!.displayName!
} else {
if self.currentCall!.remoteAddress!.displayName != nil {
self.displayName = self.currentCall!.remoteAddress!.displayName!
} else if self.currentCall!.remoteAddress!.username != nil {
self.displayName = self.currentCall!.remoteAddress!.username!
}
}
//self.avatarModel = ???
self.micMutted = self.currentCall!.microphoneMuted
self.isRecording = self.currentCall!.params!.isRecording
self.isPaused = self.isCallPaused()
self.timeElapsed = self.currentCall?.duration ?? 0
let authToken = self.currentCall!.authenticationToken
let isDeviceTrusted = self.currentCall!.authenticationTokenVerified && authToken != nil
self.isRemoteDeviceTrusted = self.telecomManager.callInProgress ? isDeviceTrusted : false
self.getCallsList()
}
self.callSuscriptions.insert(self.currentCall!.publisher?.onEncryptionChanged?.postOnMainQueue {(cbVal: (call: Call, on: Bool, authenticationToken: String?)) in
_ = self.updateEncryption()
})
}
}
}
func getCallsList() {
coreContext.doOnCoreQueue { core in
self.calls = core.calls
}
}
func terminateCall() {
coreContext.doOnCoreQueue { core in
if self.currentCall != nil {
self.telecomManager.terminateCall(call: self.currentCall!)
}
if core.callsNb == 0 {
self.timer.upstream.connect().cancel()
}
}
}
func acceptCall() {
withAnimation {
telecomManager.outgoingCallStarted = false
telecomManager.callInProgress = true
telecomManager.callStarted = true
}
coreContext.doOnCoreQueue { core in
if self.currentCall != nil {
self.telecomManager.acceptCall(core: core, call: self.currentCall!, hasVideo: false)
}
}
timer.upstream.connect().cancel()
}
func toggleMuteMicrophone() {
coreContext.doOnCoreQueue { _ in
if self.currentCall != nil {
self.currentCall!.microphoneMuted = !self.currentCall!.microphoneMuted
self.micMutted = self.currentCall!.microphoneMuted
Log.info(
"[CallViewModel] Microphone mute switch \(self.micMutted)"
)
}
}
}
func toggleVideo() {
coreContext.doOnCoreQueue { core in
if self.currentCall != nil {
do {
let params = try core.createCallParams(call: self.currentCall)
params.videoEnabled = !params.videoEnabled
Log.info(
"[CallViewModel] Updating call with video enabled set to \(params.videoEnabled)"
)
try self.currentCall!.update(params: params)
} catch {
}
}
}
}
func switchCamera() {
coreContext.doOnCoreQueue { core in
let currentDevice = core.videoDevice
Log.info("[CallViewModel] Current camera device is \(currentDevice)")
core.videoDevicesList.forEach { camera in
if camera != currentDevice && camera != "StaticImage: Static picture" {
Log.info("[CallViewModel] New camera device will be \(camera)")
do {
try core.setVideodevice(newValue: camera)
} catch _ {
}
}
}
}
}
func toggleRecording() {
coreContext.doOnCoreQueue { _ in
if self.currentCall != nil && self.currentCall!.params != nil {
if self.currentCall!.params!.isRecording {
Log.info("[CallViewModel] Stopping call recording")
self.currentCall!.stopRecording()
} else {
Log.info("[CallViewModel] Starting call recording \(self.currentCall!.params!.isRecording)")
self.currentCall!.startRecording()
}
self.isRecording = self.currentCall!.params!.isRecording
}
}
}
func togglePause() {
coreContext.doOnCoreQueue { _ in
if self.currentCall != nil && self.currentCall!.remoteAddress != nil {
do {
if self.isCallPaused() {
Log.info("[CallViewModel] Resuming call \(self.currentCall!.remoteAddress!.asStringUriOnly())")
try self.currentCall!.resume()
self.isPaused = false
} else {
Log.info("[CallViewModel] Pausing call \(self.currentCall!.remoteAddress!.asStringUriOnly())")
try self.currentCall!.pause()
self.isPaused = true
}
} catch _ {
}
}
}
}
func isCallPaused() -> Bool {
var result = false
if self.currentCall != nil {
switch self.currentCall!.state {
case Call.State.Paused, Call.State.Pausing:
result = true
default:
result = false
}
}
return result
}
func counterToMinutes() -> String {
let currentTime = timeElapsed
let seconds = currentTime % 60
let minutes = String(format: "%02d", Int(currentTime / 60))
let hours = String(format: "%02d", Int(currentTime / 3600))
if Int(currentTime / 3600) > 0 {
return "\(hours):\(minutes):\(seconds < 10 ? "0" : "")\(seconds)"
} else {
return "\(minutes):\(seconds < 10 ? "0" : "")\(seconds)"
}
}
func isHeadPhoneAvailable() -> Bool {
guard let availableInputs = AVAudioSession.sharedInstance().availableInputs else {return false}
for inputDevice in availableInputs {
if inputDevice.portType == .headsetMic || inputDevice.portType == .headphones {
return true
}
}
return false
}
func getAudioRoute() -> Int {
if AVAudioSession.sharedInstance().currentRoute.outputs.filter({ $0.portType.rawValue == "Speaker" }).isEmpty {
if AVAudioSession.sharedInstance().currentRoute.outputs.filter({ $0.portType.rawValue.contains("Bluetooth") }).isEmpty {
return 1
} else {
return 3
}
} else {
return 2
}
}
func orientationUpdate(orientation: UIDeviceOrientation) {
coreContext.doOnCoreQueue { core in
let oldLinphoneOrientation = core.deviceRotation
var newRotation = 0
switch orientation {
case .portrait:
newRotation = 0
case .portraitUpsideDown:
newRotation = 180
case .landscapeRight:
newRotation = 90
case .landscapeLeft:
newRotation = 270
default:
newRotation = oldLinphoneOrientation
}
if oldLinphoneOrientation != newRotation {
core.deviceRotation = newRotation
}
}
}
func lettersClicked(letters: String) {
let verified = letters == self.upperCaseAuthTokenToListen
Log.info(
"[ZRTPPopup] User clicked on \(verified ? "right" : "wrong") letters"
)
if verified {
coreContext.doOnCoreQueue { core in
if core.currentCall != nil {
core.currentCall!.authenticationTokenVerified = verified
}
}
}
}
private func updateEncryption() -> Bool {
if currentCall != nil && currentCall!.currentParams != nil {
switch currentCall!.currentParams!.mediaEncryption {
case MediaEncryption.ZRTP:
let authToken = currentCall!.authenticationToken
let isDeviceTrusted = currentCall!.authenticationTokenVerified && authToken != nil
Log.info(
"[CallViewModel] Current call media encryption is ZRTP, auth token is \(isDeviceTrusted ? "trusted" : "not trusted yet")"
)
isRemoteDeviceTrusted = isDeviceTrusted
if isDeviceTrusted {
ToastViewModel.shared.toastMessage = "Info_call_securised"
ToastViewModel.shared.displayToast = true
}
/*
let securityLevel = isDeviceTrusted ? SecurityLevel.Safe : SecurityLevel.Encrypted
let avatarModel = contact
if (avatarModel != nil) {
avatarModel.trust.postValue(securityLevel)
contact.postValue(avatarModel!!)
} else {
Log.error("$TAG No avatar model found!")
}
*/
isMediaEncrypted = true
// When Post Quantum is available, ZRTP is Post Quantum
isZrtpPq = Core.getPostQuantumAvailable
if !isDeviceTrusted && authToken != nil && !authToken!.isEmpty {
Log.info("[CallViewModel] Showing ZRTP SAS confirmation dialog")
showZrtpSasDialog(authToken: authToken!)
}
return isDeviceTrusted
case MediaEncryption.SRTP, MediaEncryption.DTLS:
isMediaEncrypted = true
isZrtpPq = false
return false
default:
isMediaEncrypted = false
isZrtpPq = false
return false
}
}
return false
}
func showZrtpSasDialogIfPossible() {
if currentCall != nil && currentCall!.currentParams != nil && currentCall!.currentParams!.mediaEncryption == MediaEncryption.ZRTP {
let authToken = currentCall!.authenticationToken
let isDeviceTrusted = currentCall!.authenticationTokenVerified && authToken != nil
Log.info(
"[CallViewModel] Current call media encryption is ZRTP, auth token is \(isDeviceTrusted ? "trusted" : "not trusted yet")"
)
if (authToken != nil && !authToken!.isEmpty) {
showZrtpSasDialog(authToken: authToken!)
}
}
}
private func showZrtpSasDialog(authToken: String) {
if self.currentCall != nil {
let upperCaseAuthToken = authToken.localizedUppercase
let mySubstringPrefix = upperCaseAuthToken.prefix(2)
let mySubstringSuffix = upperCaseAuthToken.suffix(2)
switch self.currentCall!.dir {
case Call.Dir.Incoming:
self.upperCaseAuthTokenToRead = String(mySubstringPrefix)
self.upperCaseAuthTokenToListen = String(mySubstringSuffix)
default:
self.upperCaseAuthTokenToRead = String(mySubstringSuffix)
self.upperCaseAuthTokenToListen = String(mySubstringPrefix)
}
self.zrtpPopupDisplayed = true
}
}
}