/*
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* Copyright (c) 2010-2020 Belledonne Communications SARL.
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*
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* This file is part of linphone-iphone
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import Foundation
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import CallKit
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import UIKit
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import linphonesw
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import AVFoundation
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import os
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@objc class CallInfo: NSObject {
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var callId: String = ""
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var toAddr: Address?
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var isOutgoing = false
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var sasEnabled = false
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var connected = false
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var reason: Reason = Reason.None
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var displayName: String?
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static func newIncomingCallInfo(callId: String) -> CallInfo {
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let callInfo = CallInfo()
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callInfo.callId = callId
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return callInfo
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}
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static func newOutgoingCallInfo(addr: Address, isSas: Bool, displayName: String) -> CallInfo {
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let callInfo = CallInfo()
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callInfo.isOutgoing = true
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callInfo.sasEnabled = isSas
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callInfo.toAddr = addr
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callInfo.displayName = displayName
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return callInfo
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}
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}
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/*
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* A delegate to support callkit.
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*/
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class ProviderDelegate: NSObject {
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private let provider: CXProvider
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var uuids: [String : UUID] = [:]
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var callInfos: [UUID : CallInfo] = [:]
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override init() {
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provider = CXProvider(configuration: ProviderDelegate.providerConfiguration)
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super.init()
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provider.setDelegate(self, queue: nil)
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}
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static var providerConfiguration: CXProviderConfiguration = {
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let providerConfiguration = CXProviderConfiguration(localizedName: Bundle.main.infoDictionary!["CFBundleName"] as! String)
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providerConfiguration.ringtoneSound = "notes_of_the_optimistic.caf"
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providerConfiguration.supportsVideo = true
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providerConfiguration.iconTemplateImageData = UIImage(named: "callkit_logo")?.pngData()
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providerConfiguration.supportedHandleTypes = [.generic, .phoneNumber, .emailAddress]
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providerConfiguration.maximumCallsPerCallGroup = 10
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providerConfiguration.maximumCallGroups = 2
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//not show app's calls in tel's history
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//providerConfiguration.includesCallsInRecents = YES;
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return providerConfiguration
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}()
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func reportIncomingCall(call:Call?, uuid: UUID, handle: String, hasVideo: Bool, displayName:String) {
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let update = CXCallUpdate()
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update.remoteHandle = CXHandle(type:.generic, value: handle)
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update.hasVideo = hasVideo
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update.localizedCallerName = displayName
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let callInfo = callInfos[uuid]
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let callId = callInfo?.callId
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: report new incoming call with call-id: [\(String(describing: callId))] and UUID: [\(uuid.description)]")
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//CallManager.instance().setHeldOtherCalls(exceptCallid: callId ?? "")
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provider.reportNewIncomingCall(with: uuid, update: update) { error in
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if error == nil {
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if CallManager.instance().endCallkit {
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let call = CallManager.instance().lc?.getCallByCallid(callId: callId!)
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if (call?.state == .PushIncomingReceived) {
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try? call?.terminate()
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}
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}
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} else {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: cannot complete incoming call with call-id: [\(String(describing: callId))] and UUID: [\(uuid.description)] from [\(handle)] caused by [\(error!.localizedDescription)]")
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let code = (error as NSError?)?.code
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switch code {
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case CXErrorCodeIncomingCallError.filteredByDoNotDisturb.rawValue:
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callInfo?.reason = Reason.DoNotDisturb
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case CXErrorCodeIncomingCallError.filteredByBlockList.rawValue:
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callInfo?.reason = Reason.DoNotDisturb
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default:
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callInfo?.reason = Reason.Unknown
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}
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self.callInfos.updateValue(callInfo!, forKey: uuid)
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try? call?.decline(reason: callInfo!.reason)
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}
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}
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}
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func updateCall(uuid: UUID, handle: String, hasVideo: Bool = false, displayName:String) {
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let update = CXCallUpdate()
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update.remoteHandle = CXHandle(type:.generic, value:handle)
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update.localizedCallerName = displayName
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update.hasVideo = hasVideo
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provider.reportCall(with:uuid, updated:update);
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}
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func reportOutgoingCallStartedConnecting(uuid:UUID) {
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provider.reportOutgoingCall(with: uuid, startedConnectingAt: nil)
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}
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func reportOutgoingCallConnected(uuid:UUID) {
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provider.reportOutgoingCall(with: uuid, connectedAt: nil)
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}
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func endCall(uuid: UUID) {
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provider.reportCall(with: uuid, endedAt: .init(), reason: .failed)
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}
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func endCallNotExist(uuid: UUID, timeout: DispatchTime) {
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DispatchQueue.main.asyncAfter(deadline: timeout) {
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let callId = CallManager.instance().providerDelegate.callInfos[uuid]?.callId
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if (callId == nil) {
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// callkit already ended
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return
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}
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let call = CallManager.instance().callByCallId(callId: callId)
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if (call == nil) {
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: terminate call with call-id: \(String(describing: callId)) and UUID: \(uuid) which does not exist.")
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CallManager.instance().providerDelegate.endCall(uuid: uuid)
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}
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}
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}
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}
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// MARK: - CXProviderDelegate
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extension ProviderDelegate: CXProviderDelegate {
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func provider(_ provider: CXProvider, perform action: CXEndCallAction) {
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let uuid = action.callUUID
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let callId = callInfos[uuid]?.callId
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// remove call infos first, otherwise CXEndCallAction will be called more than onece
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if (callId != nil) {
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uuids.removeValue(forKey: callId!)
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}
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callInfos.removeValue(forKey: uuid)
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let call = CallManager.instance().callByCallId(callId: callId)
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if let call = call {
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CallManager.instance().terminateCall(call: call.getCobject);
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: Call ended with call-id: \(String(describing: callId)) an UUID: \(uuid.description).")
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}
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action.fulfill()
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}
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func provider(_ provider: CXProvider, perform action: CXAnswerCallAction) {
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let uuid = action.callUUID
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let callInfo = callInfos[uuid]
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let callId = callInfo?.callId
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: answer call with call-id: \(String(describing: callId)) and UUID: \(uuid.description).")
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let call = CallManager.instance().callByCallId(callId: callId)
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if (UIApplication.shared.applicationState != .active) {
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CallManager.instance().backgroundContextCall = call
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CallManager.instance().backgroundContextCameraIsEnabled = call!.params?.videoEnabled ?? false
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call?.cameraEnabled = false // Disable camera while app is not on foreground
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}
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CallManager.instance().lc?.configureAudioSession()
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CallManager.instance().acceptCall(call: call!, hasVideo: call!.params?.videoEnabled ?? false)
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action.fulfill()
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}
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func provider(_ provider: CXProvider, perform action: CXSetHeldCallAction) {
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let uuid = action.callUUID
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let callId = callInfos[uuid]?.callId
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let call = CallManager.instance().callByCallId(callId: callId)
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action.fulfill()
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if (call == nil) {
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return
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}
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do {
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if (call?.conference != nil && action.isOnHold) {
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try CallManager.instance().lc?.leaveConference()
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Log.directLog(BCTBX_LOG_DEBUG, text: "CallKit: call-id: [\(String(describing: callId))] leaving conference")
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NotificationCenter.default.post(name: Notification.Name("LinphoneCallUpdate"), object: self)
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return
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}
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let state = action.isOnHold ? "Paused" : "Resumed"
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Log.directLog(BCTBX_LOG_DEBUG, text: "CallKit: Call with call-id: [\(String(describing: callId))] and UUID: [\(uuid)] paused status changed to: [\(state)]")
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if (action.isOnHold) {
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if (call!.params?.localConferenceMode ?? false) {
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return
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}
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CallManager.instance().speakerBeforePause = CallManager.instance().isSpeakerEnabled()
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try call!.pause()
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} else {
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if (call?.conference != nil && CallManager.instance().lc?.callsNb ?? 0 > 1) {
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try CallManager.instance().lc?.enterConference()
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NotificationCenter.default.post(name: Notification.Name("LinphoneCallUpdate"), object: self)
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} else {
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try call!.resume()
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}
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}
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} catch {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: Call set held (paused or resumed) \(uuid) failed because \(error)")
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}
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}
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func provider(_ provider: CXProvider, perform action: CXStartCallAction) {
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do {
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let uuid = action.callUUID
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let callInfo = callInfos[uuid]
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let update = CXCallUpdate()
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update.remoteHandle = action.handle
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update.localizedCallerName = callInfo?.displayName
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self.provider.reportCall(with: action.callUUID, updated: update)
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let addr = callInfo?.toAddr
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if (addr == nil) {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: can not call a null address!")
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action.fail()
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}
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CallManager.instance().lc?.configureAudioSession()
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try CallManager.instance().doCall(addr: addr!, isSas: callInfo?.sasEnabled ?? false)
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} catch {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: Call started failed because \(error)")
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action.fail()
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}
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action.fulfill()
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}
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func provider(_ provider: CXProvider, perform action: CXSetGroupCallAction) {
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: Call grouped callUUid : \(action.callUUID) with callUUID: \(String(describing: action.callUUIDToGroupWith)).")
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do {
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try CallManager.instance().lc?.addAllToConference()
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} catch {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: Call grouped failed because \(error)")
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}
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action.fulfill()
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}
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func provider(_ provider: CXProvider, perform action: CXSetMutedCallAction) {
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let uuid = action.callUUID
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let callId = callInfos[uuid]?.callId
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: Call muted with call-id: \(String(describing: callId)) an UUID: \(uuid.description).")
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CallManager.instance().lc!.micEnabled = !CallManager.instance().lc!.micEnabled
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action.fulfill()
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}
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func provider(_ provider: CXProvider, perform action: CXPlayDTMFCallAction) {
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let uuid = action.callUUID
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let callId = callInfos[uuid]?.callId
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: Call send dtmf with call-id: \(String(describing: callId)) an UUID: \(uuid.description).")
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let call = CallManager.instance().callByCallId(callId: callId)
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if (call != nil) {
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let digit = (action.digits.cString(using: String.Encoding.utf8)?[0])!
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do {
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try call!.sendDtmf(dtmf: digit)
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} catch {
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Log.directLog(BCTBX_LOG_ERROR, text: "CallKit: Call send dtmf \(uuid) failed because \(error)")
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}
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}
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action.fulfill()
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}
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func provider(_ provider: CXProvider, timedOutPerforming action: CXAction) {
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let uuid = action.uuid
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let callId = callInfos[uuid]?.callId
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: Call time out with call-id: \(String(describing: callId)) an UUID: \(uuid.description).")
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action.fulfill()
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}
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func providerDidReset(_ provider: CXProvider) {
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: did reset.")
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}
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func provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession) {
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: audio session activated.")
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CallManager.instance().lc?.activateAudioSession(actived: true)
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}
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func provider(_ provider: CXProvider, didDeactivate audioSession: AVAudioSession) {
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Log.directLog(BCTBX_LOG_MESSAGE, text: "CallKit: audio session deactivated.")
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CallManager.instance().lc?.activateAudioSession(actived: false)
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}
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}
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