linphone-iphone/Classes/LinphoneManager.m

/*
 * 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/>.
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <sys/sysctl.h>

#import <AudioToolbox/AudioToolbox.h>
#import <CoreTelephony/CTCallCenter.h>
#import <CoreTelephony/CTTelephonyNetworkInfo.h>
#import <SystemConfiguration/CaptiveNetwork.h>
#import <SystemConfiguration/SystemConfiguration.h>

#import "LinphoneCoreSettingsStore.h"
#import "LinphoneAppDelegate.h"
#import "LinphoneManager.h"
#import "Utils/AudioHelper.h"
#import "Utils/FileTransferDelegate.h"

#include "linphone/factory.h"
#include "linphone/linphonecore_utils.h"
#include "linphone/lpconfig.h"
#include "mediastreamer2/mscommon.h"

#import "LinphoneIOSVersion.h"

#import "Utils.h"
#import "PhoneMainView.h"
#import "ChatsListView.h"
#import "ChatConversationView.h"
#import <UserNotifications/UserNotifications.h>

#define LINPHONE_LOGS_MAX_ENTRY 5000

static LinphoneCore *theLinphoneCore = nil;
static LinphoneManager *theLinphoneManager = nil;

NSString *const LINPHONERC_APPLICATION_KEY = @"app";

NSString *const kLinphoneCoreUpdate = @"LinphoneCoreUpdate";
NSString *const kLinphoneDisplayStatusUpdate = @"LinphoneDisplayStatusUpdate";
NSString *const kLinphoneMessageReceived = @"LinphoneMessageReceived";
NSString *const kLinphoneTextComposeEvent = @"LinphoneTextComposeStarted";
NSString *const kLinphoneCallUpdate = @"LinphoneCallUpdate";
NSString *const kLinphoneRegistrationUpdate = @"LinphoneRegistrationUpdate";
NSString *const kLinphoneAddressBookUpdate = @"LinphoneAddressBookUpdate";
NSString *const kLinphoneMainViewChange = @"LinphoneMainViewChange";
NSString *const kLinphoneLogsUpdate = @"LinphoneLogsUpdate";
NSString *const kLinphoneSettingsUpdate = @"LinphoneSettingsUpdate";
NSString *const kLinphoneBluetoothAvailabilityUpdate = @"LinphoneBluetoothAvailabilityUpdate";
NSString *const kLinphoneConfiguringStateUpdate = @"LinphoneConfiguringStateUpdate";
NSString *const kLinphoneGlobalStateUpdate = @"LinphoneGlobalStateUpdate";
NSString *const kLinphoneNotifyReceived = @"LinphoneNotifyReceived";
NSString *const kLinphoneNotifyPresenceReceivedForUriOrTel = @"LinphoneNotifyPresenceReceivedForUriOrTel";
NSString *const kLinphoneCallEncryptionChanged = @"LinphoneCallEncryptionChanged";
NSString *const kLinphoneFileTransferSendUpdate = @"LinphoneFileTransferSendUpdate";
NSString *const kLinphoneFileTransferRecvUpdate = @"LinphoneFileTransferRecvUpdate";
NSString *const kLinphoneQRCodeFound = @"LinphoneQRCodeFound";
NSString *const kLinphoneChatCreateViewChange = @"LinphoneChatCreateViewChange";

NSString *const kLinphoneMsgNotificationAppGroupId = @"group.org.linphone.phone.msgNotification";

const int kLinphoneAudioVbrCodecDefaultBitrate = 36; /*you can override this from linphonerc or linphonerc-factory*/

extern void libmsamr_init(MSFactory *factory);
extern void libmsx264_init(MSFactory *factory);
extern void libmsopenh264_init(MSFactory *factory);
extern void libmssilk_init(MSFactory *factory);
extern void libmswebrtc_init(MSFactory *factory);
extern void libmscodec2_init(MSFactory *factory);

#define FRONT_CAM_NAME							\
	"AV Capture: com.apple.avfoundation.avcapturedevice.built-in_video:1" /*"AV Capture: Front Camera"*/
#define BACK_CAM_NAME							\
	"AV Capture: com.apple.avfoundation.avcapturedevice.built-in_video:0" /*"AV Capture: Back Camera"*/

NSString *const kLinphoneOldChatDBFilename = @"chat_database.sqlite";
NSString *const kLinphoneInternalChatDBFilename = @"linphone_chats.db";

@interface LinphoneManager ()
	@property(strong, nonatomic) AVAudioPlayer *messagePlayer;
@end

@implementation LinphoneManager

struct codec_name_pref_table {
	const char *name;
	int rate;
	const char *prefname;
};

struct codec_name_pref_table codec_pref_table[] = {{"speex", 8000, "speex_8k_preference"},
						   {"speex", 16000, "speex_16k_preference"},
						   {"silk", 24000, "silk_24k_preference"},
						   {"silk", 16000, "silk_16k_preference"},
						   {"amr", 8000, "amr_preference"},
						   {"gsm", 8000, "gsm_preference"},
						   {"ilbc", 8000, "ilbc_preference"},
						   {"isac", 16000, "isac_preference"},
						   {"pcmu", 8000, "pcmu_preference"},
						   {"pcma", 8000, "pcma_preference"},
						   {"g722", 8000, "g722_preference"},
						   {"g729", 8000, "g729_preference"},
						   {"mp4v-es", 90000, "mp4v-es_preference"},
						   {"h264", 90000, "h264_preference"},
						   {"h265", 90000, "h265_preference"},
						   {"vp8", 90000, "vp8_preference"},
						   {"mpeg4-generic", 16000, "aaceld_16k_preference"},
						   {"mpeg4-generic", 22050, "aaceld_22k_preference"},
						   {"mpeg4-generic", 32000, "aaceld_32k_preference"},
						   {"mpeg4-generic", 44100, "aaceld_44k_preference"},
						   {"mpeg4-generic", 48000, "aaceld_48k_preference"},
						   {"opus", 48000, "opus_preference"},
						   {"BV16", 8000, "bv16_preference"},
						   {"CODEC2", 8000, "codec2_preference"},
						   {NULL, 0, Nil}};

+ (NSString *)getPreferenceForCodec:(const char *)name withRate:(int)rate {
	int i;
	for (i = 0; codec_pref_table[i].name != NULL; ++i) {
		if (strcasecmp(codec_pref_table[i].name, name) == 0 && codec_pref_table[i].rate == rate)
			return [NSString stringWithUTF8String:codec_pref_table[i].prefname];
	}
	return Nil;
}

+ (NSSet *)unsupportedCodecs {
	NSMutableSet *set = [NSMutableSet set];
	for (int i = 0; codec_pref_table[i].name != NULL; ++i) {
		PayloadType *available = linphone_core_find_payload_type(
									 theLinphoneCore, codec_pref_table[i].name, codec_pref_table[i].rate, LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS);
		if ((available == NULL)
		    // these two codecs should not be hidden, even if not supported
		    && strcmp(codec_pref_table[i].prefname, "h264_preference") != 0 &&
		    strcmp(codec_pref_table[i].prefname, "mp4v-es_preference") != 0) {
			[set addObject:[NSString stringWithUTF8String:codec_pref_table[i].prefname]];
		}
	}
	return set;
}

+ (BOOL)isCodecSupported:(const char *)codecName {
	return (codecName != NULL) &&
		(NULL != linphone_core_find_payload_type(theLinphoneCore, codecName, LINPHONE_FIND_PAYLOAD_IGNORE_RATE,
							 LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS));
}

+ (BOOL)runningOnIpad {
	return ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad);
}

+ (BOOL)isRunningTests {
	NSDictionary *environment = [[NSProcessInfo processInfo] environment];
	NSString *injectBundle = environment[@"XCInjectBundle"];
	return [[injectBundle pathExtension] isEqualToString:@"xctest"];
}

+ (BOOL)isNotIphone3G {
	static BOOL done = FALSE;
	static BOOL result;
	if (!done) {
		size_t size;
		sysctlbyname("hw.machine", NULL, &size, NULL, 0);
		char *machine = malloc(size);
		sysctlbyname("hw.machine", machine, &size, NULL, 0);
		NSString *platform = [[NSString alloc] initWithUTF8String:machine];
		free(machine);

		result = ![platform isEqualToString:@"iPhone1,2"];

		done = TRUE;
	}
	return result;
}

+ (NSString *)getUserAgent {
	return
		[NSString stringWithFormat:@"LinphoneIphone/%@ (Linphone/%s; Apple %@/%@)",
		 [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString *)kCFBundleVersionKey],
		 linphone_core_get_version(), [UIDevice currentDevice].systemName,
		 [UIDevice currentDevice].systemVersion];
}

+ (LinphoneManager *)instance {
	@synchronized(self) {
		if (theLinphoneManager == nil) {
			theLinphoneManager = [[LinphoneManager alloc] init];
		}
	}
	return theLinphoneManager;
}

#ifdef DEBUG
+ (void)instanceRelease {
	if (theLinphoneManager != nil) {
		theLinphoneManager = nil;
	}
}
#endif

+ (BOOL)langageDirectionIsRTL {
	static NSLocaleLanguageDirection dir = NSLocaleLanguageDirectionLeftToRight;
	static dispatch_once_t onceToken;
	dispatch_once(&onceToken, ^{
			dir = [NSLocale characterDirectionForLanguage:[[NSLocale currentLocale] objectForKey:NSLocaleLanguageCode]];
		});
	return dir == NSLocaleLanguageDirectionRightToLeft;
}

#pragma mark - Lifecycle Functions

- (id)init {
	if ((self = [super init])) {
		[NSNotificationCenter.defaultCenter addObserver:self
		 selector:@selector(audioRouteChangeListenerCallback:)
		 name:AVAudioSessionRouteChangeNotification
		 object:nil];

		NSString *path = [[NSBundle mainBundle] pathForResource:@"msg" ofType:@"wav"];
		self.messagePlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL URLWithString:path] error:nil];

		_sounds.vibrate = kSystemSoundID_Vibrate;

		_logs = [[NSMutableArray alloc] init];
		_pushDict = [[NSMutableDictionary alloc] init];
		_database = NULL;
		_conf = FALSE;
		_canConfigurePushTokenForProxyConfigs = FALSE;
		_fileTransferDelegates = [[NSMutableArray alloc] init];
		_linphoneManagerAddressBookMap = [[OrderedDictionary alloc] init];
		pushCallIDs = [[NSMutableArray alloc] init];
		_isTesting = [LinphoneManager isRunningTests];
		[self migrateImportantFiles];
		[self renameDefaultSettings];
		[self copyDefaultSettings];
		[self overrideDefaultSettings];

        [self lpConfigSetString:[LinphoneManager dataFile:@"linphone.db"] forKey:@"uri" inSection:@"storage"];
        [self lpConfigSetString:[LinphoneManager dataFile:@"x3dh.c25519.sqlite3"] forKey:@"x3dh_db_path" inSection:@"lime"];
		// set default values for first boot
		if ([self lpConfigStringForKey:@"debugenable_preference"] == nil) {
#ifdef DEBUG
			[self lpConfigSetInt:1 forKey:@"debugenable_preference"];
#else
			[self lpConfigSetInt:0 forKey:@"debugenable_preference"];
#endif
		}

		// by default if handle_content_encoding is not set, we use plain text for debug purposes only
		if ([self lpConfigStringForKey:@"handle_content_encoding" inSection:@"misc"] == nil) {
#ifdef DEBUG
			[self lpConfigSetString:@"none" forKey:@"handle_content_encoding" inSection:@"misc"];
#else
			[self lpConfigSetString:@"conflate" forKey:@"handle_content_encoding" inSection:@"misc"];
#endif
		}

		[self migrateFromUserPrefs];
		[self loadAvatar];
	}
	return self;
}

- (void)dealloc {
	[NSNotificationCenter.defaultCenter removeObserver:self];
}

#pragma mark - AddressBookMap

- (void) setLinphoneManagerAddressBookMap:(OrderedDictionary*) addressBook{
	_linphoneManagerAddressBookMap = addressBook;
}

- (OrderedDictionary*) getLinphoneManagerAddressBookMap{
	return _linphoneManagerAddressBookMap;
}

- (void) setContactsUpdated:(BOOL) updated{
	_contactsUpdated = updated;
}
- (BOOL) getContactsUpdated{
	return _contactsUpdated;
}

#pragma deploymate push "ignored-api-availability"
- (void)silentPushFailed:(NSTimer *)timer {
	if (_silentPushCompletion) {
		LOGI(@"silentPush failed, silentPushCompletion block: %p", _silentPushCompletion);
		_silentPushCompletion(UIBackgroundFetchResultNoData);
		_silentPushCompletion = nil;
	}
}
#pragma deploymate pop

#pragma mark - Migration

- (void)migrationAllPost {
	[self migrationLinphoneSettings];
	[self migrationPerAccount];
}

- (void)migrationAllPre {
	// migrate xmlrpc URL if needed
	if ([self lpConfigBoolForKey:@"migration_xmlrpc"] == NO) {
		[self lpConfigSetString:@"https://subscribe.linphone.org:444/wizard.php"
		 forKey:@"xmlrpc_url"
		 inSection:@"assistant"];
		[self lpConfigSetString:@"sip:rls@sip.linphone.org" forKey:@"rls_uri" inSection:@"sip"];
		[self lpConfigSetBool:YES forKey:@"migration_xmlrpc"];
	}
	[self lpConfigSetBool:NO forKey:@"store_friends" inSection:@"misc"]; //so far, storing friends in files is not needed. may change in the future.
    
}

static int check_should_migrate_images(void *data, int argc, char **argv, char **cnames) {
	*((BOOL *)data) = TRUE;
	return 0;
}

- (void)migrateFromUserPrefs {
	static NSString *migration_flag = @"userpref_migration_done";

	if (_configDb == nil)
		return;

	if ([self lpConfigIntForKey:migration_flag withDefault:0]) {
		return;
	}

	NSDictionary *defaults = [[NSUserDefaults standardUserDefaults] dictionaryRepresentation];
	NSArray *defaults_keys = [defaults allKeys];
	NSDictionary *values =
		@{ @"backgroundmode_preference" : @NO,
		   @"debugenable_preference" : @NO,
		   @"start_at_boot_preference" : @YES };
	BOOL shouldSync = FALSE;

	LOGI(@"%lu user prefs", (unsigned long)[defaults_keys count]);

	for (NSString *userpref in values) {
		if ([defaults_keys containsObject:userpref]) {
			LOGI(@"Migrating %@ from user preferences: %d", userpref, [[defaults objectForKey:userpref] boolValue]);
			[self lpConfigSetBool:[[defaults objectForKey:userpref] boolValue] forKey:userpref];
			[[NSUserDefaults standardUserDefaults] removeObjectForKey:userpref];
			shouldSync = TRUE;
		} else if ([self lpConfigStringForKey:userpref] == nil) {
			// no default value found in our linphonerc, we need to add them
			[self lpConfigSetBool:[[values objectForKey:userpref] boolValue] forKey:userpref];
		}
	}

	if (shouldSync) {
		LOGI(@"Synchronizing...");
		[[NSUserDefaults standardUserDefaults] synchronize];
	}
	// don't get back here in the future
	[self lpConfigSetBool:YES forKey:migration_flag];
}

- (void)migrationLinphoneSettings {
	/* AVPF migration */
	if ([self lpConfigBoolForKey:@"avpf_migration_done"] == FALSE) {
		const MSList *proxies = linphone_core_get_proxy_config_list(theLinphoneCore);
		while (proxies) {
			LinphoneProxyConfig *proxy = (LinphoneProxyConfig *)proxies->data;
			const char *addr = linphone_proxy_config_get_addr(proxy);
			// we want to enable AVPF for the proxies
			if (addr &&
			    strstr(addr, [LinphoneManager.instance lpConfigStringForKey:@"domain_name"
					  inSection:@"app"
					  withDefault:@"sip.linphone.org"]
				   .UTF8String) != 0) {
				LOGI(@"Migrating proxy config to use AVPF");
				linphone_proxy_config_set_avpf_mode(proxy, LinphoneAVPFEnabled);
			}
			proxies = proxies->next;
		}
		[self lpConfigSetBool:TRUE forKey:@"avpf_migration_done"];
	}
	/* Quality Reporting migration */
	if ([self lpConfigBoolForKey:@"quality_report_migration_done"] == FALSE) {
		const MSList *proxies = linphone_core_get_proxy_config_list(theLinphoneCore);
		while (proxies) {
			LinphoneProxyConfig *proxy = (LinphoneProxyConfig *)proxies->data;
			const char *addr = linphone_proxy_config_get_addr(proxy);
			// we want to enable quality reporting for the proxies that are on linphone.org
			if (addr &&
			    strstr(addr, [LinphoneManager.instance lpConfigStringForKey:@"domain_name"
					  inSection:@"app"
					  withDefault:@"sip.linphone.org"]
				   .UTF8String) != 0) {
				LOGI(@"Migrating proxy config to send quality report");
				linphone_proxy_config_set_quality_reporting_collector(
										      proxy, "sip:voip-metrics@sip.linphone.org;transport=tls");
				linphone_proxy_config_set_quality_reporting_interval(proxy, 180);
				linphone_proxy_config_enable_quality_reporting(proxy, TRUE);
			}
			proxies = proxies->next;
		}
		[self lpConfigSetBool:TRUE forKey:@"quality_report_migration_done"];
	}
	/* File transfer migration */
	if ([self lpConfigBoolForKey:@"file_transfer_migration_done"] == FALSE) {
		const char *newURL = "https://www.linphone.org:444/lft.php";
		LOGI(@"Migrating sharing server url from %s to %s", linphone_core_get_file_transfer_server(LC), newURL);
		linphone_core_set_file_transfer_server(LC, newURL);
		[self lpConfigSetBool:TRUE forKey:@"file_transfer_migration_done"];
	}
	
	if ([self lpConfigBoolForKey:@"lime_migration_done"] == FALSE) {
		const MSList *proxies = linphone_core_get_proxy_config_list(LC);
		while (proxies) {
			if (!strcmp(linphone_proxy_config_get_domain((LinphoneProxyConfig *)proxies->data),"sip.linphone.org")) {
				linphone_core_set_lime_x3dh_server_url(LC, "https://lime.linphone.org/lime-server/lime-server.php");
				break;
			}
			proxies = proxies->next;
		}
		[self lpConfigSetBool:TRUE forKey:@"lime_migration_done"];
	}

	if ([self lpConfigBoolForKey:@"push_notification_migration_done"] == FALSE) {
		const MSList *proxies = linphone_core_get_proxy_config_list(LC);
		bool_t pushEnabled;
		while (proxies) {
			const char *refkey = linphone_proxy_config_get_ref_key(proxies->data);
			if (refkey) {
				pushEnabled = (strcmp(refkey, "push_notification") == 0);
			} else {
				pushEnabled = true;
			}
			linphone_proxy_config_set_push_notification_allowed(proxies->data, pushEnabled);
			proxies = proxies->next;
		}
		[self lpConfigSetBool:TRUE forKey:@"push_notification_migration_done"];
	}
}

- (void)migrationPerAccount {
	const bctbx_list_t * proxies = linphone_core_get_proxy_config_list(LC);
	NSString *appDomain  = [LinphoneManager.instance lpConfigStringForKey:@"domain_name"
				inSection:@"app"
				withDefault:@"sip.linphone.org"];
	while (proxies) {
		LinphoneProxyConfig *config = proxies->data;
		// can not create group chat without conference factory
		if (!linphone_proxy_config_get_conference_factory_uri(config)) {
			if (strcmp(appDomain.UTF8String, linphone_proxy_config_get_domain(config)) == 0) {
				linphone_proxy_config_set_conference_factory_uri(config, "sip:conference-factory@sip.linphone.org");
			}
		}
		proxies = proxies->next;
	}
	
	NSString *s = [self lpConfigStringForKey:@"pushnotification_preference"];
	if (s && s.boolValue) {
		LOGI(@"Migrating push notification per account, enabling for ALL");
		[self lpConfigSetBool:NO forKey:@"pushnotification_preference"];
		const MSList *proxies = linphone_core_get_proxy_config_list(LC);
		while (proxies) {
			linphone_proxy_config_set_push_notification_allowed(proxies->data, true);
			[self configurePushTokenForProxyConfig:proxies->data];
			proxies = proxies->next;
		}
	}
}

static void migrateWizardToAssistant(const char *entry, void *user_data) {
	LinphoneManager *thiz = (__bridge LinphoneManager *)(user_data);
	NSString *key = [NSString stringWithUTF8String:entry];
	[thiz lpConfigSetString:[thiz lpConfigStringForKey:key inSection:@"wizard"] forKey:key inSection:@"assistant"];
}

#pragma mark - Linphone Core Functions

+ (LinphoneCore *)getLc {
	if (theLinphoneCore == nil) {
		@throw([NSException exceptionWithName:@"LinphoneCoreException"
			reason:@"Linphone core not initialized yet"
			userInfo:nil]);
	}
	return theLinphoneCore;
}

+ (BOOL)isLcInitialized {
    if (theLinphoneCore == nil) {
        return NO;
    }
    return YES;
}

#pragma mark Debug functions

+ (void)dumpLcConfig {
	if (theLinphoneCore) {
		LpConfig *conf = LinphoneManager.instance.configDb;
		char *config = linphone_config_dump(conf);
		LOGI(@"\n%s", config);
		ms_free(config);
	}
}

#pragma mark - Logs Functions handlers
static void linphone_iphone_log_user_info(struct _LinphoneCore *lc, const char *message) {
	linphone_iphone_log_handler(NULL, ORTP_MESSAGE, message, NULL);
}
static void linphone_iphone_log_user_warning(struct _LinphoneCore *lc, const char *message) {
	linphone_iphone_log_handler(NULL, ORTP_WARNING, message, NULL);
}

#pragma mark - Display Status Functions

- (void)displayStatus:(NSString *)message {
	// Post event
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneDisplayStatusUpdate
	 object:self
	 userInfo:@{
			@"message" : message
				}];
}

static void linphone_iphone_display_status(struct _LinphoneCore *lc, const char *message) {
	NSString *status = [[NSString alloc] initWithCString:message encoding:[NSString defaultCStringEncoding]];
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) displayStatus:status];
}

#pragma mark - Call State Functions

- (void)localNotifContinue:(NSTimer *)timer {
	UILocalNotification *notif = [timer userInfo];
	if (notif) {
		LOGI(@"cancelling/presenting local notif");
		[[UIApplication sharedApplication] cancelAllLocalNotifications];
		[[UIApplication sharedApplication] presentLocalNotificationNow:notif];
	}
}

- (void)userNotifContinue:(NSTimer *)timer {
	UNNotificationContent *content = [timer userInfo];
	if (content && [UIApplication sharedApplication].applicationState != UIApplicationStateActive) {
		LOGI(@"cancelling/presenting user notif");
		UNNotificationRequest *req =
			[UNNotificationRequest requestWithIdentifier:@"call_request" content:content trigger:NULL];
		[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:req
		 withCompletionHandler:^(NSError *_Nullable error) {
				// Enable or disable features based on authorization.
				if (error) {
					LOGD(@"Error while adding notification request :");
					LOGD(error.description);
				}
			}];
	}
}

#pragma mark - Transfert State Functions

static void linphone_iphone_transfer_state_changed(LinphoneCore *lc, LinphoneCall *call, LinphoneCallState state) {
}

#pragma mark - Global state change

static void linphone_iphone_global_state_changed(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onGlobalStateChanged:gstate withMessage:message];
}

- (void)onGlobalStateChanged:(LinphoneGlobalState)state withMessage:(const char *)message {
	LOGI(@"onGlobalStateChanged: %d (message: %s)", state, message);

	NSDictionary *dict = [NSDictionary
			      dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:state], @"state",
			      [NSString stringWithUTF8String:message ? message : ""], @"message", nil];

	if (theLinphoneCore && linphone_core_get_global_state(theLinphoneCore) == LinphoneGlobalOff) {
		[CoreManager.instance stopIterateTimer];
	}
	// dispatch the notification asynchronously
	dispatch_async(dispatch_get_main_queue(), ^(void) {
		if (theLinphoneCore && linphone_core_get_global_state(theLinphoneCore) != LinphoneGlobalOff)
			[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneGlobalStateUpdate object:self userInfo:dict];
	});
}

- (void)globalStateChangedNotificationHandler:(NSNotification *)notif {
	if ((LinphoneGlobalState)[[[notif userInfo] valueForKey:@"state"] integerValue] == LinphoneGlobalOn) {
		[self finishCoreConfiguration];
	}
}

#pragma mark - Configuring status changed

static void linphone_iphone_configuring_status_changed(LinphoneCore *lc, LinphoneConfiguringState status,
						       const char *message) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onConfiguringStatusChanged:status withMessage:message];
}

- (void)onConfiguringStatusChanged:(LinphoneConfiguringState)status withMessage:(const char *)message {
	LOGI(@"onConfiguringStatusChanged: %s %@", linphone_configuring_state_to_string(status),
	     message ? [NSString stringWithFormat:@"(message: %s)", message] : @"");
	NSDictionary *dict = [NSDictionary
			      dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:status], @"state",
			      [NSString stringWithUTF8String:message ? message : ""], @"message", nil];

	// dispatch the notification asynchronously
	dispatch_async(dispatch_get_main_queue(), ^(void) {
			[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneConfiguringStateUpdate
			 object:self
			 userInfo:dict];
		});
}

- (void)configuringStateChangedNotificationHandler:(NSNotification *)notif {
	_wasRemoteProvisioned = ((LinphoneConfiguringState)[[[notif userInfo] valueForKey:@"state"] integerValue] ==
				 LinphoneConfiguringSuccessful);
	if (_wasRemoteProvisioned) {
		LinphoneProxyConfig *cfg = linphone_core_get_default_proxy_config(LC);
		if (cfg) {
			[self configurePushTokenForProxyConfig:cfg];
		}
	}
}

#pragma mark - Registration State Functions

- (void)onRegister:(LinphoneCore *)lc
cfg:(LinphoneProxyConfig *)cfg
state:(LinphoneRegistrationState)state
message:(const char *)cmessage {
	LOGI(@"New registration state: %s (message: %s)", linphone_registration_state_to_string(state), cmessage);

	LinphoneReason reason = linphone_proxy_config_get_error(cfg);
	NSString *message = nil;
	switch (reason) {
	case LinphoneReasonBadCredentials:
		message = NSLocalizedString(@"Bad credentials, check your account settings", nil);
		break;
	case LinphoneReasonNoResponse:
		message = NSLocalizedString(@"No response received from remote", nil);
		break;
	case LinphoneReasonUnsupportedContent:
		message = NSLocalizedString(@"Unsupported content", nil);
		break;
	case LinphoneReasonIOError:
		message = NSLocalizedString(
					    @"Cannot reach the server: either it is an invalid address or it may be temporary down.", nil);
		break;

	case LinphoneReasonUnauthorized:
		message = NSLocalizedString(@"Operation is unauthorized because missing credential", nil);
		break;
	case LinphoneReasonNoMatch:
		message = NSLocalizedString(@"Operation could not be executed by server or remote client because it "
					    @"didn't have any context for it",
					    nil);
		break;
	case LinphoneReasonMovedPermanently:
		message = NSLocalizedString(@"Resource moved permanently", nil);
		break;
	case LinphoneReasonGone:
		message = NSLocalizedString(@"Resource no longer exists", nil);
		break;
	case LinphoneReasonTemporarilyUnavailable:
		message = NSLocalizedString(@"Temporarily unavailable", nil);
		break;
	case LinphoneReasonAddressIncomplete:
		message = NSLocalizedString(@"Address incomplete", nil);
		break;
	case LinphoneReasonNotImplemented:
		message = NSLocalizedString(@"Not implemented", nil);
		break;
	case LinphoneReasonBadGateway:
		message = NSLocalizedString(@"Bad gateway", nil);
		break;
	case LinphoneReasonServerTimeout:
		message = NSLocalizedString(@"Server timeout", nil);
		break;
	case LinphoneReasonNotAcceptable:
	case LinphoneReasonDoNotDisturb:
	case LinphoneReasonDeclined:
	case LinphoneReasonNotFound:
	case LinphoneReasonNotAnswered:
	case LinphoneReasonBusy:
	case LinphoneReasonNone:
	case LinphoneReasonUnknown:
		message = NSLocalizedString(@"Unknown error", nil);
		break;
	}

	// Post event
	NSDictionary *dict =
		[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:state], @"state",
		 [NSValue valueWithPointer:cfg], @"cfg", message, @"message", nil];
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneRegistrationUpdate object:self userInfo:dict];
}

static void linphone_iphone_registration_state(LinphoneCore *lc, LinphoneProxyConfig *cfg,
					       LinphoneRegistrationState state, const char *message) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onRegister:lc cfg:cfg state:state message:message];
}

#pragma mark - Auth info Function

static void linphone_iphone_popup_password_request(LinphoneCore *lc, LinphoneAuthInfo *auth_info, LinphoneAuthMethod method) {
	// let the wizard handle its own errors
	if ([PhoneMainView.instance currentView] != AssistantView.compositeViewDescription) {
		const char * realmC = linphone_auth_info_get_realm(auth_info);
		const char * usernameC = linphone_auth_info_get_username(auth_info) ? : "";
		const char * domainC = linphone_auth_info_get_domain(auth_info) ? : "";
		static UIAlertController *alertView = nil;
		
		// InstantMessageDeliveryNotifications from previous accounts can trigger some pop-up spam asking for indentification
		// Try to filter the popup password request to avoid displaying those that do not matter and can be handled through a simple warning
		const MSList *configList = linphone_core_get_proxy_config_list(LC);
		bool foundMatchingConfig = false;
		while (configList && !foundMatchingConfig) {
			const char * configUsername = linphone_proxy_config_get_identity(configList->data);
			const char * configDomain = linphone_proxy_config_get_domain(configList->data);
			foundMatchingConfig = (strcmp(configUsername, usernameC) == 0) && (strcmp(configDomain, domainC) == 0);
			configList = configList->next;
		}
		if (!foundMatchingConfig) {
			LOGW(@"Received an authentication request from %s@%s, but ignored it did not match any current user", usernameC, domainC);
			return;
		}
		
		// avoid having multiple popups
		[PhoneMainView.instance dismissViewControllerAnimated:YES completion:nil];

		// dont pop up if we are in background, in any case we will refresh registers when entering
		// the application again
		if ([[UIApplication sharedApplication] applicationState] != UIApplicationStateActive) {
			return;
		}

		NSString *realm = [NSString stringWithUTF8String:realmC?:domainC];
		NSString *username = [NSString stringWithUTF8String:usernameC];
		NSString *domain = [NSString stringWithUTF8String:domainC];
		alertView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Authentification needed", nil)
			     message:[NSString stringWithFormat:NSLocalizedString(@"Connection failed because authentication is "
										  @"missing or invalid for %@@%@.\nYou can "
										  @"provide password again, or check your "
										  @"account configuration in the settings.", nil), username, realm]
			     preferredStyle:UIAlertControllerStyleAlert];

		UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil)
						style:UIAlertActionStyleDefault
						handler:^(UIAlertAction * action) {}];

		[alertView addTextFieldWithConfigurationHandler:^(UITextField *textField) {
				textField.placeholder = NSLocalizedString(@"Password", nil);
				textField.clearButtonMode = UITextFieldViewModeWhileEditing;
				textField.borderStyle = UITextBorderStyleRoundedRect;
				textField.secureTextEntry = YES;
			}];

		UIAlertAction* continueAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Confirm password", nil)
						 style:UIAlertActionStyleDefault
						 handler:^(UIAlertAction * action) {
				NSString *password = alertView.textFields[0].text;
				LinphoneAuthInfo *info =
				linphone_auth_info_new(username.UTF8String, NULL, password.UTF8String, NULL,
						       realm.UTF8String, domain.UTF8String);
				linphone_core_add_auth_info(LC, info);
				[LinphoneManager.instance refreshRegisters];
			}];

		UIAlertAction* settingsAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Go to settings", nil)
						 style:UIAlertActionStyleDefault
						 handler:^(UIAlertAction * action) {
				[PhoneMainView.instance changeCurrentView:SettingsView.compositeViewDescription];
			}];

		[alertView addAction:defaultAction];
		[alertView addAction:continueAction];
		[alertView addAction:settingsAction];
		[PhoneMainView.instance presentViewController:alertView animated:YES completion:nil];
	}
}

#pragma mark - Text Received Functions

- (void)onMessageReceived:(LinphoneCore *)lc room:(LinphoneChatRoom *)room message:(LinphoneChatMessage *)msg {
#pragma deploymate push "ignored-api-availability"
	if (_silentPushCompletion) {
		// we were woken up by a silent push. Call the completion handler with NEWDATA
		// so that the push is notified to the user
		LOGI(@"onMessageReceived - handler %p", _silentPushCompletion);
		_silentPushCompletion(UIBackgroundFetchResultNewData);
		_silentPushCompletion = nil;
	}
#pragma deploymate pop
	NSString *callID = [NSString stringWithUTF8String:linphone_chat_message_get_custom_header(msg, "Call-ID")];

	int index = [(NSNumber *)[_pushDict objectForKey:callID] intValue] - 1;
	LOGI(@"Decrementing index of long running task for call id : %@ with index : %d", callID, index);
	[_pushDict setValue:[NSNumber numberWithInt:index] forKey:callID];
	BOOL need_bg_task = FALSE;
	for (NSString *key in [_pushDict allKeys]) {
		int value = [(NSNumber *)[_pushDict objectForKey:key] intValue];
		if (value > 0) {
			need_bg_task = TRUE;
			break;
		}
	}
	if (pushBgTaskMsg && !need_bg_task) {
		LOGI(@"Message received, stopping message background task for call-id [%@]", callID);
		[[UIApplication sharedApplication] endBackgroundTask:pushBgTaskMsg];
		pushBgTaskMsg = 0;
	}
    
	BOOL hasFile = FALSE;
	// if auto_download is available and file is downloaded
	if ((linphone_core_get_max_size_for_auto_download_incoming_files(LC) > -1) && linphone_chat_message_get_file_transfer_information(msg))
		hasFile = TRUE;

	if (!linphone_chat_message_is_file_transfer(msg) && !linphone_chat_message_is_text(msg) && !hasFile)
		return;
    
	if (hasFile) {
		if (PhoneMainView.instance.currentView == ChatConversationView.compositeViewDescription && room == PhoneMainView.instance.currentRoom)
			return;
		[ChatConversationView autoDownload:msg];
	}

	// Post event
	NSDictionary *dict = @{
		@"room" : [NSValue valueWithPointer:room],
		@"from_address" : [NSValue valueWithPointer:linphone_chat_message_get_from_address(msg)],
		@"message" : [NSValue valueWithPointer:msg],
		@"call-id" : callID
	};

	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneMessageReceived object:self userInfo:dict];
}

static void linphone_iphone_message_received(LinphoneCore *lc, LinphoneChatRoom *room, LinphoneChatMessage *message) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onMessageReceived:lc room:room message:message];
}

static void linphone_iphone_message_received_unable_decrypt(LinphoneCore *lc, LinphoneChatRoom *room,
							    LinphoneChatMessage *message) {

	NSString *callId = [NSString stringWithUTF8String:linphone_chat_message_get_custom_header(message, "Call-ID")];
	int index = [(NSNumber *)[LinphoneManager.instance.pushDict objectForKey:callId] intValue] - 1;
	LOGI(@"Decrementing index of long running task for call id : %@ with index : %d", callId, index);
	[LinphoneManager.instance.pushDict setValue:[NSNumber numberWithInt:index] forKey:callId];
	BOOL need_bg_task = FALSE;
	for (NSString *key in [LinphoneManager.instance.pushDict allKeys]) {
		int value = [(NSNumber *)[LinphoneManager.instance.pushDict objectForKey:key] intValue];
		if (value > 0) {
			need_bg_task = TRUE;
			break;
		}
	}
	if (theLinphoneManager->pushBgTaskMsg && !need_bg_task) {
		LOGI(@"Message received, stopping message background task for call-id [%@]", callId);
		[[UIApplication sharedApplication] endBackgroundTask:theLinphoneManager->pushBgTaskMsg];
		theLinphoneManager->pushBgTaskMsg = 0;
	}
	const LinphoneAddress *address = linphone_chat_message_get_peer_address(message);
	NSString *strAddr = [FastAddressBook displayNameForAddress:address];
	NSString *title = NSLocalizedString(@"LIME warning", nil);
	NSString *body = [NSString
			  stringWithFormat:NSLocalizedString(@"You have received an encrypted message you are unable to decrypt from "
							     @"%@.\nYou need to call your correspondant in order to exchange your ZRTP "
							     @"keys if you want to decrypt the future messages you will receive.",
							     nil),
			  strAddr];
	NSString *action = NSLocalizedString(@"Call", nil);

	if ([UIApplication sharedApplication].applicationState != UIApplicationStateActive) {
		if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_9_x_Max) {
			UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
			content.title = title;
			content.body = body;
			UNNotificationRequest *req =
				[UNNotificationRequest requestWithIdentifier:@"decrypt_request" content:content trigger:NULL];
			[[UNUserNotificationCenter currentNotificationCenter]
			 addNotificationRequest:req
			 withCompletionHandler:^(NSError *_Nullable error) {
					// Enable or disable features based on authorization.
					if (error) {
						LOGD(@"Error while adding notification request :");
						LOGD(error.description);
					}
				}];
		} else {
			UILocalNotification *notification = [[UILocalNotification alloc] init];
			notification.repeatInterval = 0;
			notification.alertTitle = title;
			notification.alertBody = body;
			[[UIApplication sharedApplication] presentLocalNotificationNow:notification];
		}
	} else {
		UIAlertController *errView =
			[UIAlertController alertControllerWithTitle:title message:body preferredStyle:UIAlertControllerStyleAlert];

		UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"OK", nil)
						style:UIAlertActionStyleDefault
						handler:^(UIAlertAction *action){
			}];

		UIAlertAction *callAction = [UIAlertAction actionWithTitle:action
					     style:UIAlertActionStyleDefault
					     handler:^(UIAlertAction *action) {
				[LinphoneManager.instance call:address];
			}];

		[errView addAction:defaultAction];
		[errView addAction:callAction];
		[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
	}
}

- (void)onNotifyReceived:(LinphoneCore *)lc
event:(LinphoneEvent *)lev
notifyEvent:(const char *)notified_event
content:(const LinphoneContent *)body {
	// Post event
	NSMutableDictionary *dict = [NSMutableDictionary dictionary];
	[dict setObject:[NSValue valueWithPointer:lev] forKey:@"event"];
	[dict setObject:[NSString stringWithUTF8String:notified_event] forKey:@"notified_event"];
	if (body != NULL) {
		[dict setObject:[NSValue valueWithPointer:body] forKey:@"content"];
	}
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneNotifyReceived object:self userInfo:dict];
}

static void linphone_iphone_notify_received(LinphoneCore *lc, LinphoneEvent *lev, const char *notified_event,
					    const LinphoneContent *body) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onNotifyReceived:lc
	 event:lev
	 notifyEvent:notified_event
	 content:body];
}

- (void)onNotifyPresenceReceivedForUriOrTel:(LinphoneCore *)lc
friend:(LinphoneFriend *)lf
uri:(const char *)uri
presenceModel:(const LinphonePresenceModel *)model {
	// Post event
	NSMutableDictionary *dict = [NSMutableDictionary dictionary];
	[dict setObject:[NSValue valueWithPointer:lf] forKey:@"friend"];
	[dict setObject:[NSValue valueWithPointer:uri] forKey:@"uri"];
	[dict setObject:[NSValue valueWithPointer:model] forKey:@"presence_model"];
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneNotifyPresenceReceivedForUriOrTel
	 object:self
	 userInfo:dict];
}

static void linphone_iphone_notify_presence_received_for_uri_or_tel(LinphoneCore *lc, LinphoneFriend *lf,
								    const char *uri_or_tel,
								    const LinphonePresenceModel *presence_model) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onNotifyPresenceReceivedForUriOrTel:lc
	 friend:lf
	 uri:uri_or_tel
	 presenceModel:presence_model];
}

static void linphone_iphone_call_encryption_changed(LinphoneCore *lc, LinphoneCall *call, bool_t on,
						    const char *authentication_token) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onCallEncryptionChanged:lc
	 call:call
	 on:on
	 token:authentication_token];
}

- (void)onCallEncryptionChanged:(LinphoneCore *)lc
call:(LinphoneCall *)call
on:(BOOL)on
token:(const char *)authentication_token {
	// Post event
	NSMutableDictionary *dict = [NSMutableDictionary dictionary];
	[dict setObject:[NSValue valueWithPointer:call] forKey:@"call"];
	[dict setObject:[NSNumber numberWithBool:on] forKey:@"on"];
	if (authentication_token) {
		[dict setObject:[NSString stringWithUTF8String:authentication_token] forKey:@"token"];
	}
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneCallEncryptionChanged object:self userInfo:dict];
}

void linphone_iphone_chatroom_state_changed(LinphoneCore *lc, LinphoneChatRoom *cr, LinphoneChatRoomState state) {
    if (state == LinphoneChatRoomStateCreated) {
        [NSNotificationCenter.defaultCenter postNotificationName:kLinphoneMessageReceived object:nil];
    }
}

void linphone_iphone_version_update_check_result_received (LinphoneCore *lc, LinphoneVersionUpdateCheckResult result, const char *version, const char *url) {
	if (result == LinphoneVersionUpdateCheckUpToDate || result == LinphoneVersionUpdateCheckError) {
		return;
	}
	NSString *title = NSLocalizedString(@"Outdated Version", nil);
	NSString *body = NSLocalizedString(@"A new version of your app is available, use the button below to download it.", nil);

	UIAlertController *versVerifView = [UIAlertController alertControllerWithTitle:title
					    message:body
					    preferredStyle:UIAlertControllerStyleAlert];

	NSString *ObjCurl = [NSString stringWithUTF8String:url];
	UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Download", nil)
					style:UIAlertActionStyleDefault
					handler:^(UIAlertAction * action) {
			[[UIApplication sharedApplication] openURL:[NSURL URLWithString:ObjCurl]];
		}];

	[versVerifView addAction:defaultAction];
	[PhoneMainView.instance presentViewController:versVerifView animated:YES completion:nil];
}

void linphone_iphone_qr_code_found(LinphoneCore *lc, const char *result) {
	NSDictionary *eventDic = [NSDictionary dictionaryWithObject:[NSString stringWithCString:result encoding:[NSString defaultCStringEncoding]] forKey:@"qrcode"];
	LOGD(@"QRCODE FOUND");
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneQRCodeFound object:nil userInfo:eventDic];
}

static void linphone_iphone_call_log_updated(LinphoneCore *lc, LinphoneCallLog *newcl) {
	if (linphone_call_log_get_status(newcl) == LinphoneCallEarlyAborted) {
		const char *cid = linphone_call_log_get_call_id(newcl);
		if (cid) {
			[CallManager.instance markCallAsDeclinedWithCallId:[NSString stringWithUTF8String:cid]];
		}
	}
}

static void linphone_iphone_call_id_updated(LinphoneCore *lc, const char *previous_call_id, const char *current_call_id) {
	[CallManager.instance updateCallIdWithPrevious:[NSString stringWithUTF8String:previous_call_id] current:[NSString stringWithUTF8String:current_call_id]];
}
#pragma mark - Message composition start
- (void)onMessageComposeReceived:(LinphoneCore *)core forRoom:(LinphoneChatRoom *)room {
	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneTextComposeEvent
	 object:self
	 userInfo:@{
			@"room" : [NSValue valueWithPointer:room]
				}];
}

static void linphone_iphone_is_composing_received(LinphoneCore *lc, LinphoneChatRoom *room) {
	[(__bridge LinphoneManager *)linphone_core_cbs_get_user_data(linphone_core_get_current_callbacks(lc)) onMessageComposeReceived:lc forRoom:room];
}

#pragma mark - Network Functions


- (NetworkType)network {
	if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7) {
		UIApplication *app = [UIApplication sharedApplication];
		NSArray *subviews = [[[app valueForKey:@"statusBar"] valueForKey:@"foregroundView"] subviews];
		NSNumber *dataNetworkItemView = nil;

		for (id subview in subviews) {
			if ([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
				dataNetworkItemView = subview;
				break;
			}
		}

		NSNumber *number = (NSNumber *)[dataNetworkItemView valueForKey:@"dataNetworkType"];
		return [number intValue];
	} else {
#pragma deploymate push "ignored-api-availability"
		CTTelephonyNetworkInfo *info = [[CTTelephonyNetworkInfo alloc] init];
		NSString *currentRadio = info.currentRadioAccessTechnology;
		if ([currentRadio isEqualToString:CTRadioAccessTechnologyEdge]) {
			return network_2g;
		} else if ([currentRadio isEqualToString:CTRadioAccessTechnologyLTE]) {
			return network_4g;
		}
#pragma deploymate pop
		return network_3g;
	}
}

#pragma mark -

// scheduling loop
- (void)iterate {
	linphone_core_iterate(theLinphoneCore);
}

/** Should be called once per linphone_core_new() */
- (void)finishCoreConfiguration {
	//Force keep alive to workaround push notif on chat message
	linphone_core_enable_keep_alive([LinphoneManager getLc], true);

	// get default config from bundle
	NSString *zrtpSecretsFileName = [LinphoneManager dataFile:@"zrtp_secrets"];
	NSString *chatDBFileName = [LinphoneManager dataFile:kLinphoneInternalChatDBFilename];
	NSString *device = [[NSMutableString alloc] initWithString:[NSString stringWithFormat:@"%@iOS/%@ (%@) LinphoneSDK",
								    [NSBundle.mainBundle objectForInfoDictionaryKey:@"CFBundleDisplayName"],
								    [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"],
								    [[UIDevice currentDevice] name]]];

	linphone_core_set_user_agent(theLinphoneCore, device.UTF8String, LINPHONE_SDK_VERSION);

	_contactSipField = [self lpConfigStringForKey:@"contact_im_type_value" inSection:@"sip" withDefault:@"SIP"];

	if (_fastAddressBook == nil) {
		_fastAddressBook = [[FastAddressBook alloc] init];
	}

	linphone_core_set_zrtp_secrets_file(theLinphoneCore, [zrtpSecretsFileName UTF8String]);
	//linphone_core_set_chat_database_path(theLinphoneCore, [chatDBFileName UTF8String]);
	linphone_core_set_call_logs_database_path(theLinphoneCore, [chatDBFileName UTF8String]);

	NSString *path = [LinphoneManager bundleFile:@"nowebcamCIF.jpg"];
	if (path) {
		const char *imagePath = [path UTF8String];
		LOGI(@"Using '%s' as source image for no webcam", imagePath);
		linphone_core_set_static_picture(theLinphoneCore, imagePath);
	}

	/*DETECT cameras*/
	_frontCamId = _backCamId = nil;
	char **camlist = (char **)linphone_core_get_video_devices(theLinphoneCore);
	if (camlist) {
		for (char *cam = *camlist; *camlist != NULL; cam = *++camlist) {
			if (strcmp(FRONT_CAM_NAME, cam) == 0) {
				_frontCamId = cam;
				// great set default cam to front
				LOGI(@"Setting default camera [%s]", _frontCamId);
				linphone_core_set_video_device(theLinphoneCore, _frontCamId);
			}
			if (strcmp(BACK_CAM_NAME, cam) == 0) {
				_backCamId = cam;
			}
		}
	} else {
		LOGW(@"No camera detected!");
	}

	if (![LinphoneManager isNotIphone3G]) {
		PayloadType *pt = linphone_core_find_payload_type(theLinphoneCore, "SILK", 24000, -1);
		if (pt) {
			linphone_core_enable_payload_type(theLinphoneCore, pt, FALSE);
			LOGW(@"SILK/24000 and video disabled on old iPhone 3G");
		}
		linphone_core_enable_video_display(theLinphoneCore, FALSE);
		linphone_core_enable_video_capture(theLinphoneCore, FALSE);
	}

	[self enableProxyPublish:([UIApplication sharedApplication].applicationState == UIApplicationStateActive)];

	LOGI(@"Linphone [%s] started on [%s]", linphone_core_get_version(), [[UIDevice currentDevice].model UTF8String]);

	// Post event
	NSDictionary *dict = [NSDictionary dictionaryWithObject:[NSValue valueWithPointer:theLinphoneCore] forKey:@"core"];

	[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneCoreUpdate
	 object:LinphoneManager.instance
	 userInfo:dict];
}

static BOOL libStarted = FALSE;

- (void)launchLinphoneCore {

	if (libStarted) {
		LOGE(@"Liblinphone is already initialized!");
		return;
	}

	libStarted = TRUE;

	signal(SIGPIPE, SIG_IGN);

	// create linphone core
	[self createLinphoneCore];
	_iapManager = [[InAppProductsManager alloc] init];

	// - Security fix - remove multi transport migration, because it enables tcp or udp, if by factoring settings only
	// tls is enabled. 	This is a problem for new installations.
	// linphone_core_migrate_to_multi_transport(theLinphoneCore);

	// init audio session (just getting the instance will init)
	AVAudioSession *audioSession = [AVAudioSession sharedInstance];
	BOOL bAudioInputAvailable = audioSession.inputAvailable;
	NSError *err = nil;

	if (![audioSession setActive:NO error:&err] && err) {
		LOGE(@"audioSession setActive failed: %@", [err description]);
		err = nil;
	}
	if (!bAudioInputAvailable) {
		UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"No microphone", nil)
					      message:NSLocalizedString(@"You need to plug a microphone to your device to use the application.", nil)
					      preferredStyle:UIAlertControllerStyleAlert];

		UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"OK", nil)
						style:UIAlertActionStyleDefault
						handler:^(UIAlertAction * action) {}];

		[errView addAction:defaultAction];
		[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
	}
}

void popup_link_account_cb(LinphoneAccountCreator *creator, LinphoneAccountCreatorStatus status, const char *resp) {
	if (status == LinphoneAccountCreatorStatusAccountLinked) {
		[LinphoneManager.instance lpConfigSetInt:0 forKey:@"must_link_account_time"];
	} else {
		LinphoneProxyConfig *cfg = linphone_core_get_default_proxy_config(LC);
		if (cfg &&
		    strcmp(linphone_proxy_config_get_domain(cfg),
			   [LinphoneManager.instance lpConfigStringForKey:@"domain_name"
			    inSection:@"app"
			    withDefault:@"sip.linphone.org"]
			   .UTF8String) == 0) {
			UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Link your account", nil)
						      message:[NSString stringWithFormat:NSLocalizedString(@"Link your Linphone.org account %s to your phone number.", nil),
							       linphone_address_get_username(linphone_proxy_config_get_identity_address(cfg))]
						      preferredStyle:UIAlertControllerStyleAlert];

			UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Maybe later", nil)
							style:UIAlertActionStyleDefault
							handler:^(UIAlertAction * action) {}];

			UIAlertAction* continueAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Let's go", nil)
							 style:UIAlertActionStyleDefault
							 handler:^(UIAlertAction * action) {
					[PhoneMainView.instance changeCurrentView:AssistantLinkView.compositeViewDescription];
				}];
			defaultAction.accessibilityLabel = @"Later";
			[errView addAction:defaultAction];
			[errView addAction:continueAction];
			[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];

			[LinphoneManager.instance
			 lpConfigSetInt:[[NSDate date] dateByAddingTimeInterval:[LinphoneManager.instance
										 lpConfigIntForKey:@"link_account_popup_time"
										 withDefault:84200]]
			 .timeIntervalSince1970
			 forKey:@"must_link_account_time"];
		}
	}
}

- (void)shouldPresentLinkPopup {
	NSDate *nextTime =
		[NSDate dateWithTimeIntervalSince1970:[self lpConfigIntForKey:@"must_link_account_time" withDefault:1]];
	NSDate *now = [NSDate date];
	if (nextTime.timeIntervalSince1970 > 0 && [now earlierDate:nextTime] == nextTime) {
		LinphoneProxyConfig *cfg = linphone_core_get_default_proxy_config(LC);
		if (cfg) {
			const char *username = linphone_address_get_username(linphone_proxy_config_get_identity_address(cfg));
			LinphoneAccountCreator *account_creator = linphone_account_creator_new(
											       LC,
											       [LinphoneManager.instance lpConfigStringForKey:@"xmlrpc_url" inSection:@"assistant" withDefault:@""]
											       .UTF8String);
			linphone_account_creator_set_user_data(account_creator, (__bridge void *)(self));
			linphone_account_creator_cbs_set_is_account_linked(linphone_account_creator_get_callbacks(account_creator),
									   popup_link_account_cb);
			linphone_account_creator_set_username(account_creator, username);
			linphone_account_creator_is_account_linked(account_creator);
		}
	}
}

- (void)startLinphoneCore {
    linphone_core_start([LinphoneManager getLc]);
	[CoreManager.instance startIterateTimer];
}

- (void)createLinphoneCore {
	[self migrationAllPre];
	if (theLinphoneCore != nil) {
		LOGI(@"linphonecore is already created");
		return;
	}


	// Set audio assets
	NSString *ring =
		([LinphoneManager bundleFile:[self lpConfigStringForKey:@"local_ring" inSection:@"sound"].lastPathComponent]
		 ?: [LinphoneManager bundleFile:@"notes_of_the_optimistic.caf"])
		.lastPathComponent;
	NSString *ringback =
		([LinphoneManager bundleFile:[self lpConfigStringForKey:@"remote_ring" inSection:@"sound"].lastPathComponent]
		 ?: [LinphoneManager bundleFile:@"ringback.wav"])
		.lastPathComponent;
	NSString *hold =
		([LinphoneManager bundleFile:[self lpConfigStringForKey:@"hold_music" inSection:@"sound"].lastPathComponent]
		 ?: [LinphoneManager bundleFile:@"hold.mkv"])
		.lastPathComponent;
	[self lpConfigSetString:[LinphoneManager bundleFile:ring] forKey:@"local_ring" inSection:@"sound"];
	[self lpConfigSetString:[LinphoneManager bundleFile:ringback] forKey:@"remote_ring" inSection:@"sound"];
	[self lpConfigSetString:[LinphoneManager bundleFile:hold] forKey:@"hold_music" inSection:@"sound"];

	LinphoneFactory *factory = linphone_factory_get();
	LinphoneCoreCbs *cbs = linphone_factory_create_core_cbs(factory);
	linphone_core_cbs_set_registration_state_changed(cbs,linphone_iphone_registration_state);
	linphone_core_cbs_set_notify_presence_received_for_uri_or_tel(cbs, linphone_iphone_notify_presence_received_for_uri_or_tel);
	linphone_core_cbs_set_authentication_requested(cbs, linphone_iphone_popup_password_request);
	linphone_core_cbs_set_message_received(cbs, linphone_iphone_message_received);
	linphone_core_cbs_set_message_received_unable_decrypt(cbs, linphone_iphone_message_received_unable_decrypt);
	linphone_core_cbs_set_transfer_state_changed(cbs, linphone_iphone_transfer_state_changed);
	linphone_core_cbs_set_is_composing_received(cbs, linphone_iphone_is_composing_received);
	linphone_core_cbs_set_configuring_status(cbs, linphone_iphone_configuring_status_changed);
	linphone_core_cbs_set_global_state_changed(cbs, linphone_iphone_global_state_changed);
	linphone_core_cbs_set_notify_received(cbs, linphone_iphone_notify_received);
	linphone_core_cbs_set_call_encryption_changed(cbs, linphone_iphone_call_encryption_changed);
	linphone_core_cbs_set_chat_room_state_changed(cbs, linphone_iphone_chatroom_state_changed);
	linphone_core_cbs_set_version_update_check_result_received(cbs, linphone_iphone_version_update_check_result_received);
	linphone_core_cbs_set_qrcode_found(cbs, linphone_iphone_qr_code_found);
	linphone_core_cbs_set_call_log_updated(cbs, linphone_iphone_call_log_updated);
	linphone_core_cbs_set_call_id_updated(cbs, linphone_iphone_call_id_updated);
	linphone_core_cbs_set_user_data(cbs, (__bridge void *)(self));

	theLinphoneCore = linphone_factory_create_shared_core_with_config(factory, _configDb, NULL, [kLinphoneMsgNotificationAppGroupId UTF8String], true);
	linphone_core_add_callbacks(theLinphoneCore, cbs);

	[CallManager.instance setCoreWithCore:theLinphoneCore];
	[CoreManager.instance setCoreWithCore:theLinphoneCore];
	[ConfigManager.instance setDbWithDb:_configDb];

	linphone_core_start(theLinphoneCore);

	// Let the core handle cbs
	linphone_core_cbs_unref(cbs);

	LOGI(@"Create linphonecore %p", theLinphoneCore);

	// Load plugins if available in the linphone SDK - otherwise these calls will do nothing
	MSFactory *f = linphone_core_get_ms_factory(theLinphoneCore);
	libmssilk_init(f);
	libmsamr_init(f);
	libmsx264_init(f);
	libmsopenh264_init(f);
	libmswebrtc_init(f);
	libmscodec2_init(f);

	linphone_core_reload_ms_plugins(theLinphoneCore, NULL);
	[self migrationAllPost];

	/* Use the rootca from framework, which is already set*/
	//linphone_core_set_root_ca(theLinphoneCore, [LinphoneManager bundleFile:@"rootca.pem"].UTF8String);
	linphone_core_set_user_certificates_path(theLinphoneCore, [LinphoneManager cacheDirectory].UTF8String);

	/* The core will call the linphone_iphone_configuring_status_changed callback when the remote provisioning is loaded
	   (or skipped).
	   Wait for this to finish the code configuration */

	[NSNotificationCenter.defaultCenter addObserver:self
	 selector:@selector(globalStateChangedNotificationHandler:)
	 name:kLinphoneGlobalStateUpdate
	 object:nil];
	[NSNotificationCenter.defaultCenter addObserver:self
	 selector:@selector(configuringStateChangedNotificationHandler:)
	 name:kLinphoneConfiguringStateUpdate
	 object:nil];
	[NSNotificationCenter.defaultCenter addObserver:self selector:@selector(inappReady:) name:kIAPReady object:nil];

	/*call iterate once immediately in order to initiate background connections with sip server or remote provisioning
	 * grab, if any */
	[self iterate];
	// start scheduler
	[CoreManager.instance startIterateTimer];
}

- (void)destroyLinphoneCore {
	[CoreManager.instance stopIterateTimer];
	// just in case
	[self removeCTCallCenterCb];

	if (theLinphoneCore != nil) { // just in case application terminate before linphone core initialization

		// rare case, remove duplicated fileTransferDelegates to avoid crash
		[_fileTransferDelegates setArray:[[NSSet setWithArray:_fileTransferDelegates] allObjects]];
		for (FileTransferDelegate *ftd in _fileTransferDelegates) {
			// Not remove here, avoid array mutated while being enumerated
			[ftd stopAndDestroyAndRemove:FALSE];
		}
		[_fileTransferDelegates removeAllObjects];

		linphone_core_destroy(theLinphoneCore);
		LOGI(@"Destroy linphonecore %p", theLinphoneCore);
		theLinphoneCore = nil;

		// Post event
		NSDictionary *dict =
			[NSDictionary dictionaryWithObject:[NSValue valueWithPointer:theLinphoneCore] forKey:@"core"];
		[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneCoreUpdate
		 object:LinphoneManager.instance
		 userInfo:dict];
	}
	libStarted = FALSE;
	[[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)resetLinphoneCore {
	[self destroyLinphoneCore];
	[self createLinphoneCore];
	// reload friends
	[self.fastAddressBook fetchContactsInBackGroundThread];
}

static int comp_call_id(const LinphoneCall *call, const char *callid) {
	if (linphone_call_log_get_call_id(linphone_call_get_call_log(call)) == nil) {
		ms_error("no callid for call [%p]", call);
		return 1;
	}
	return strcmp(linphone_call_log_get_call_id(linphone_call_get_call_log(call)), callid);
}

- (void)acceptCallForCallId:(NSString *)callid {
	// first, make sure this callid is not already involved in a call
	const bctbx_list_t *calls = linphone_core_get_calls(theLinphoneCore);
	bctbx_list_t *call = bctbx_list_find_custom(calls, (bctbx_compare_func)comp_call_id, [callid UTF8String]);
	if (call != NULL) {
		const LinphoneVideoPolicy *video_policy = linphone_core_get_video_policy(theLinphoneCore);
		bool with_video = video_policy->automatically_accept;
		[CallManager.instance acceptCallWithCall:(LinphoneCall *)call->data hasVideo:with_video];
		return;
	};
}

- (void)addPushCallId:(NSString *)callid {
	// first, make sure this callid is not already involved in a call
	const bctbx_list_t *calls = linphone_core_get_calls(theLinphoneCore);
	if (bctbx_list_find_custom(calls, (bctbx_compare_func)comp_call_id, [callid UTF8String])) {
		LOGW(@"Call id [%@] already handled", callid);
		return;
	};
	if ([pushCallIDs count] > 10 /*max number of pending notif*/)
		[pushCallIDs removeObjectAtIndex:0];

	[pushCallIDs addObject:callid];
}

- (BOOL)popPushCallID:(NSString *)callId {
	for (NSString *pendingNotif in pushCallIDs) {
		if ([pendingNotif compare:callId] == NSOrderedSame) {
			[pushCallIDs removeObject:pendingNotif];
			return TRUE;
		}
	}
	return FALSE;
}

- (BOOL)resignActive {
	linphone_core_stop_dtmf_stream(theLinphoneCore);

	return YES;
}

- (void)playMessageSound {
	BOOL success = [self.messagePlayer play];
	if (!success) {
		LOGE(@"Could not play the message sound");
	}
	AudioServicesPlaySystemSound(LinphoneManager.instance.sounds.vibrate);
}

static int comp_call_state_paused(const LinphoneCall *call, const void *param) {
	return linphone_call_get_state(call) != LinphoneCallPaused;
}

- (void)startCallPausedLongRunningTask {
	pausedCallBgTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
			LOGW(@"Call cannot be paused any more, too late");
			[[UIApplication sharedApplication] endBackgroundTask:pausedCallBgTask];
		}];
	LOGI(@"Long running task started, remaining [%@] because at least one call is paused",
	     [LinphoneUtils intervalToString:[[UIApplication sharedApplication] backgroundTimeRemaining]]);
}

- (void)enableProxyPublish:(BOOL)enabled {
	if (linphone_core_get_global_state(LC) != LinphoneGlobalOn || !linphone_core_get_default_friend_list(LC)) {
		LOGW(@"Not changing presence configuration because linphone core not ready yet");
		return;
	}

	linphone_core_enable_friend_list_subscription(LC, enabled && [LinphoneManager.instance lpConfigBoolForKey:@"use_rls_presence"]);
}

- (void)becomeActive {
	linphone_core_enter_foreground(LC);

	[self checkNewVersion];

	if (pausedCallBgTask) {
		[[UIApplication sharedApplication] endBackgroundTask:pausedCallBgTask];
		pausedCallBgTask = 0;
	}
	if (incallBgTask) {
		[[UIApplication sharedApplication] endBackgroundTask:incallBgTask];
		incallBgTask = 0;
	}

	/*IOS specific*/
	[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo
	 completionHandler:^(BOOL granted){
		}];

	/*start the video preview in case we are in the main view*/
	if (linphone_core_video_display_enabled(theLinphoneCore) && [self lpConfigBoolForKey:@"preview_preference"]) {
		linphone_core_enable_video_preview(theLinphoneCore, TRUE);
	}
}

- (void)refreshRegisters {
	linphone_core_refresh_registers(theLinphoneCore); // just to make sure REGISTRATION is up to date
}

- (void)migrateImportantFiles {
	if ([LinphoneManager copyFile:[LinphoneManager oldPreferenceFile:@"linphonerc"] destination:[LinphoneManager preferenceFile:@"linphonerc"] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager oldPreferenceFile:@"linphonerc"]
		error:nil];
	} else if ([LinphoneManager copyFile:[LinphoneManager documentFile:@"linphonerc"] destination:[LinphoneManager preferenceFile:@"linphonerc"] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager documentFile:@"linphonerc"]
		error:nil];
	}

	if ([LinphoneManager copyFile:[LinphoneManager oldDataFile:@"linphone.db"] destination:[LinphoneManager dataFile:@"linphone.db"] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager oldDataFile:@"linphone.db"]
		error:nil];
	}

	if ([LinphoneManager copyFile:[LinphoneManager oldDataFile:@"x3dh.c25519.sqlite3"] destination:[LinphoneManager dataFile:@"x3dh.c25519.sqlite3"] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager oldDataFile:@"x3dh.c25519.sqlite3"]
		error:nil];
	}

	// call history
	if ([LinphoneManager copyFile:[LinphoneManager oldDataFile:kLinphoneInternalChatDBFilename] destination:[LinphoneManager dataFile:kLinphoneInternalChatDBFilename] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager oldDataFile:kLinphoneInternalChatDBFilename]
		error:nil];
	}

	if ([LinphoneManager copyFile:[LinphoneManager oldDataFile:@"zrtp_secrets"] destination:[LinphoneManager dataFile:@"zrtp_secrets"] override:TRUE ignore:TRUE]) {
		[NSFileManager.defaultManager
		removeItemAtPath:[LinphoneManager oldDataFile:@"zrtp_secrets"]
		error:nil];
	}
}

- (void)renameDefaultSettings {
	// rename .linphonerc to linphonerc to ease debugging: when downloading
	// containers from MacOSX, Finder do not display hidden files leading
	// to useless painful operations to display the .linphonerc file
	NSString *src = [LinphoneManager documentFile:@".linphonerc"];
	NSString *dst = [LinphoneManager preferenceFile:@"linphonerc"];
	NSFileManager *fileManager = [NSFileManager defaultManager];
	NSError *fileError = nil;
	if ([fileManager fileExistsAtPath:src]) {
		if ([fileManager fileExistsAtPath:dst]) {
			[fileManager removeItemAtPath:src error:&fileError];
			LOGW(@"%@ already exists, simply removing %@ %@", dst, src,
			     fileError ? fileError.localizedDescription : @"successfully");
		} else {
			[fileManager moveItemAtPath:src toPath:dst error:&fileError];
			LOGI(@"%@ moving to %@ %@", dst, src, fileError ? fileError.localizedDescription : @"successfully");
		}
	}
}

- (void)copyDefaultSettings {
	NSString *src = [LinphoneManager bundleFile:@"linphonerc"];
	NSString *srcIpad = [LinphoneManager bundleFile:@"linphonerc~ipad"];
	if (IPAD && [[NSFileManager defaultManager] fileExistsAtPath:srcIpad]) {
		src = srcIpad;
	}
	NSString *dst = [LinphoneManager preferenceFile:@"linphonerc"];
	[LinphoneManager copyFile:src destination:dst override:FALSE ignore:FALSE];
}

- (void)overrideDefaultSettings {
	NSString *factory = [LinphoneManager bundleFile:@"linphonerc-factory"];
	NSString *factoryIpad = [LinphoneManager bundleFile:@"linphonerc-factory~ipad"];
	if (IPAD && [[NSFileManager defaultManager] fileExistsAtPath:factoryIpad]) {
		factory = factoryIpad;
	}
	_configDb = linphone_config_new_for_shared_core(kLinphoneMsgNotificationAppGroupId.UTF8String, @"linphonerc".UTF8String, factory.UTF8String);
	linphone_config_clean_entry(_configDb, "misc", "max_calls");
}
#pragma mark - Audio route Functions

- (void)audioRouteChangeListenerCallback:(NSNotification *)notif {
	if (IPAD)
		return;

	// there is at least one bug when you disconnect an audio bluetooth headset
	// since we only get notification of route having changed, we cannot tell if that is due to:
	// -bluetooth headset disconnected or
	// -user wanted to use earpiece
	// the only thing we can assume is that when we lost a device, it must be a bluetooth one (strong hypothesis though)
	if ([[notif.userInfo valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue] == AVAudioSessionRouteChangeReasonOldDeviceUnavailable)
		_bluetoothAvailable = NO;

	AVAudioSessionRouteDescription *newRoute = [AVAudioSession sharedInstance].currentRoute;

	if (newRoute && newRoute.outputs.count > 0) {
		NSString *route = newRoute.outputs[0].portType;
		LOGI(@"Current audio route is [%s]", [route UTF8String]);
		linphone_core_audio_route_changed(theLinphoneCore);

		CallManager.instance.speakerEnabled = [route isEqualToString:AVAudioSessionPortBuiltInSpeaker];
		if (([[AudioHelper bluetoothRoutes] containsObject:route]) && !CallManager.instance.speakerEnabled) {
			_bluetoothAvailable = TRUE;
			CallManager.instance.bluetoothEnabled = TRUE;
		} else
			CallManager.instance.bluetoothEnabled = FALSE;

		NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:_bluetoothAvailable], @"available", nil];
		[NSNotificationCenter.defaultCenter postNotificationName:kLinphoneBluetoothAvailabilityUpdate
		 object:self
		 userInfo:dict];
	}
}

- (void)setBluetoothEnabled:(BOOL)enable {
	if (_bluetoothAvailable) {
		// The change of route will be done in enableSpeaker
		CallManager.instance.bluetoothEnabled = enable;
		if (CallManager.instance.bluetoothEnabled) {
			NSError *err = nil;
			AVAudioSessionPortDescription *_bluetoothPort = [AudioHelper bluetoothAudioDevice];
			[[AVAudioSession sharedInstance] setPreferredInput:_bluetoothPort error:&err];
			// if setting bluetooth failed, it must be because the device is not available
			// anymore (disconnected), so deactivate bluetooth.
			if (err) {
				CallManager.instance.bluetoothEnabled = FALSE;
				LOGE(@"Failed to enable bluetooth: err %@", err.localizedDescription);
				err = nil;
			} else {
				CallManager.instance.speakerEnabled = FALSE;
				return;
			}
		}
	}
	[CallManager.instance enableSpeakerWithEnable:CallManager.instance.speakerEnabled];
}

#pragma mark - Call Functions
- (void)send:(NSString *)replyText toChatRoom:(LinphoneChatRoom *)room {
	LinphoneChatMessage *msg = linphone_chat_room_create_message(room, replyText.UTF8String);
	linphone_chat_message_send(msg);

	[ChatConversationView markAsRead:room];
}

- (void)call:(const LinphoneAddress *)iaddr {
	// First verify that network is available, abort otherwise.
	if (!linphone_core_is_network_reachable(theLinphoneCore)) {
		[PhoneMainView.instance presentViewController:[LinphoneUtils networkErrorView] animated:YES completion:nil];
		return;
	}

	// Then check that no GSM calls are in progress, abort otherwise.
	CTCallCenter *callCenter = [[CTCallCenter alloc] init];
	if ([callCenter currentCalls] != nil && floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_9_x_Max) {
		LOGE(@"GSM call in progress, cancelling outgoing SIP call request");
		UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Cannot make call", nil)
					      message:NSLocalizedString(@"Please terminate GSM call first.", nil)
					      preferredStyle:UIAlertControllerStyleAlert];

		UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"OK", nil)
						style:UIAlertActionStyleDefault
						handler:^(UIAlertAction * action) {}];

		[errView addAction:defaultAction];
		[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
		return;
	}

	// Then check that the supplied address is valid
	if (!iaddr) {
		UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Invalid SIP address", nil)
					      message:NSLocalizedString(@"Either configure a SIP proxy server from settings prior to place a "
									@"call or use a valid SIP address (I.E sip:john@example.net)", nil)
					      preferredStyle:UIAlertControllerStyleAlert];

		UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"OK", nil)
						style:UIAlertActionStyleDefault
						handler:^(UIAlertAction * action) {}];

		[errView addAction:defaultAction];
		[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
		return;
	}

	// For OutgoingCall, show CallOutgoingView
	[CallManager.instance startCallWithAddr:iaddr isSas:FALSE];
}

#pragma mark - Property Functions

- (void)setPushKitToken:(NSData *)pushKitToken {
	if (pushKitToken == _pushKitToken) {
		return;
	}
	_pushKitToken = pushKitToken;

    [self configurePushTokenForProxyConfigs];
}

- (void)setRemoteNotificationToken:(NSData *)remoteNotificationToken {
    if (remoteNotificationToken == _remoteNotificationToken) {
        return;
    }
    _remoteNotificationToken = remoteNotificationToken;

    [self configurePushTokenForProxyConfigs];
}

- (void)configurePushTokenForProxyConfigs {
    // we register only when the second token is set
    if (_canConfigurePushTokenForProxyConfigs) {
        @try {
            const MSList *proxies = linphone_core_get_proxy_config_list(LC);
            while (proxies) {
                [self configurePushTokenForProxyConfig:proxies->data];
                proxies = proxies->next;
            }
        } @catch (NSException* e) {
            LOGW(@"%s: linphone core not ready yet, ignoring push token", __FUNCTION__);
        }
    } else {
        _canConfigurePushTokenForProxyConfigs = YES;
    }

}

- (void)configurePushTokenForProxyConfig:(LinphoneProxyConfig *)proxyCfg {
	linphone_proxy_config_edit(proxyCfg);

	NSData *remoteTokenData = _remoteNotificationToken;
    NSData *PKTokenData = _pushKitToken;
	BOOL pushNotifEnabled = linphone_proxy_config_is_push_notification_allowed(proxyCfg);
	if ((remoteTokenData != nil || PKTokenData != nil) && pushNotifEnabled) {

        const unsigned char *remoteTokenBuffer = [remoteTokenData bytes];
        NSMutableString *remoteTokenString = [NSMutableString stringWithCapacity:[remoteTokenData length] * 2];
		for (int i = 0; i < [remoteTokenData length]; ++i) {
			[remoteTokenString appendFormat:@"%02X", (unsigned int)remoteTokenBuffer[i]];
		}

        const unsigned char *PKTokenBuffer = [PKTokenData bytes];
        NSMutableString *PKTokenString = [NSMutableString stringWithCapacity:[PKTokenData length] * 2];
        for (int i = 0; i < [PKTokenData length]; ++i) {
            [PKTokenString appendFormat:@"%02X", (unsigned int)PKTokenBuffer[i]];
        }

        NSString *token;
        NSString *services;
        if (remoteTokenString && PKTokenString) {
            token = [NSString stringWithFormat:@"%@:remote&%@:voip", remoteTokenString, PKTokenString];
            services = @"remote&voip";
        } else if (remoteTokenString) {
            token = [NSString stringWithFormat:@"%@:remote", remoteTokenString];
            services = @"remote";
        } else {
            token = [NSString stringWithFormat:@"%@:voip", PKTokenString];
            services = @"voip";
        }

		// NSLocalizedString(@"IC_MSG", nil); // Fake for genstrings
		// NSLocalizedString(@"IM_MSG", nil); // Fake for genstrings
		// NSLocalizedString(@"IM_FULLMSG", nil); // Fake for genstrings
#ifdef DEBUG
#define APPMODE_SUFFIX @".dev"
#else
#define APPMODE_SUFFIX @""
#endif
		NSString *ring =
			([LinphoneManager bundleFile:[self lpConfigStringForKey:@"local_ring" inSection:@"sound"].lastPathComponent]
			 ?: [LinphoneManager bundleFile:@"notes_of_the_optimistic.caf"])
			.lastPathComponent;

		NSString *timeout;
		if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_9_x_Max) {
			timeout = @";pn-timeout=0";
		} else {
			timeout = @"";
		}

		// dummy value, for later use
		NSString *teamId = @"ABCD1234";

        NSString *params = [NSString
                    stringWithFormat:@"pn-provider=apns%@;pn-prid=%@;pn-param=%@.%@.%@;pn-msg-str=IM_MSG;pn-call-str=IC_MSG;pn-groupchat-str=GC_MSG;pn-"
                    @"call-snd=%@;pn-msg-snd=msg.caf%@;pn-silent=1",
                    APPMODE_SUFFIX, token, teamId, [[NSBundle mainBundle] bundleIdentifier], services, ring, timeout];

		LOGI(@"Proxy config %s configured for push notifications with contact: %@",
		linphone_proxy_config_get_identity(proxyCfg), params);
		linphone_proxy_config_set_contact_uri_parameters(proxyCfg, [params UTF8String]);
		linphone_proxy_config_set_contact_parameters(proxyCfg, NULL);
	} else {
		LOGI(@"Proxy config %s NOT configured for push notifications", linphone_proxy_config_get_identity(proxyCfg));
		// no push token:
		linphone_proxy_config_set_contact_uri_parameters(proxyCfg, NULL);
		linphone_proxy_config_set_contact_parameters(proxyCfg, NULL);
	}

	linphone_proxy_config_done(proxyCfg);
}

#pragma mark - Misc Functions
+ (PHFetchResult *)getPHAssets:(NSString *)key {
	PHFetchResult<PHAsset *> *assets;
	if ([key hasPrefix:@"assets-library"]) {
		// compability with previous linphone version
		assets = [PHAsset fetchAssetsWithALAssetURLs:@[[NSURL URLWithString:key]] options:nil];
	} else {
		assets = [PHAsset fetchAssetsWithLocalIdentifiers:[NSArray arrayWithObject:key] options:nil];
	}
	return assets;
}

+ (NSString *)bundleFile:(NSString *)file {
	return [[NSBundle mainBundle] pathForResource:[file stringByDeletingPathExtension] ofType:[file pathExtension]];
}

+ (NSString *)documentFile:(NSString *)file {
	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
	NSString *documentsPath = [paths objectAtIndex:0];
	return [documentsPath stringByAppendingPathComponent:file];
}

+ (NSString *)preferenceFile:(NSString *)file {
	LinphoneFactory *factory = linphone_factory_get();
	NSString *fullPath = [NSString stringWithUTF8String:linphone_factory_get_config_dir(factory, kLinphoneMsgNotificationAppGroupId.UTF8String)];
	return [fullPath stringByAppendingPathComponent:file];
}

+ (NSString *)dataFile:(NSString *)file {
	LinphoneFactory *factory = linphone_factory_get();
	NSString *fullPath = [NSString stringWithUTF8String:linphone_factory_get_data_dir(factory, kLinphoneMsgNotificationAppGroupId.UTF8String)];
	return [fullPath stringByAppendingPathComponent:file];
}

+ (NSString *)cacheDirectory {
	LinphoneFactory *factory = linphone_factory_get();
	NSString *cachePath = [NSString stringWithUTF8String:linphone_factory_get_download_dir(factory, kLinphoneMsgNotificationAppGroupId.UTF8String)];
	BOOL isDir = NO;
	NSError *error;
	// cache directory must be created if not existing
	if (![[NSFileManager defaultManager] fileExistsAtPath:cachePath isDirectory:&isDir] && isDir == NO) {
		[[NSFileManager defaultManager] createDirectoryAtPath:cachePath
		 withIntermediateDirectories:NO
		 attributes:nil
		 error:&error];
	}
	return cachePath;
}

+ (NSString *)oldPreferenceFile:(NSString *)file {
	// migration
	LinphoneFactory *factory = linphone_factory_get();
	NSString *fullPath = [NSString stringWithUTF8String:linphone_factory_get_config_dir(factory, nil)];
	return [fullPath stringByAppendingPathComponent:file];
}

+ (NSString *)oldDataFile:(NSString *)file {
	// migration
	LinphoneFactory *factory = linphone_factory_get();
	NSString *fullPath = [NSString stringWithUTF8String:linphone_factory_get_data_dir(factory, nil)];
	return [fullPath stringByAppendingPathComponent:file];
}

+ (int)unreadMessageCount {
	int count = 0;
	const MSList *rooms = linphone_core_get_chat_rooms(LC);
	const MSList *item = rooms;
	while (item) {
		LinphoneChatRoom *room = (LinphoneChatRoom *)item->data;
		if (room) {
			count += linphone_chat_room_get_unread_messages_count(room);
		}
		item = item->next;
	}

	return count;
}

+ (BOOL)copyFile:(NSString *)src destination:(NSString *)dst override:(BOOL)override ignore:(BOOL)ignore {
	NSFileManager *fileManager = NSFileManager.defaultManager;
	NSError *error = nil;
	if ([fileManager fileExistsAtPath:src] == NO) {
		if (!ignore)
			LOGE(@"Can't find \"%@\": %@", src, [error localizedDescription]);
		return FALSE;
	}
	if ([fileManager fileExistsAtPath:dst] == YES) {
		if (override) {
			[fileManager removeItemAtPath:dst error:&error];
			if (error != nil) {
				LOGE(@"Can't remove \"%@\": %@", dst, [error localizedDescription]);
				return FALSE;
			}
		} else {
			LOGW(@"\"%@\" already exists", dst);
			return FALSE;
		}
	}
	[fileManager copyItemAtPath:src toPath:dst error:&error];
	if (error != nil) {
		LOGE(@"Can't copy \"%@\" to \"%@\": %@", src, dst, [error localizedDescription]);
		return FALSE;
	}
	return TRUE;
}

- (void)configureVbrCodecs {
	PayloadType *pt;
	int bitrate = linphone_config_get_int(
					_configDb, "audio", "codec_bitrate_limit",
					kLinphoneAudioVbrCodecDefaultBitrate); /*default value is in linphonerc or linphonerc-factory*/
	const MSList *audio_codecs = linphone_core_get_audio_codecs(theLinphoneCore);
	const MSList *codec = audio_codecs;
	while (codec) {
		pt = codec->data;
		if (linphone_core_payload_type_is_vbr(theLinphoneCore, pt)) {
			linphone_core_set_payload_type_bitrate(theLinphoneCore, pt, bitrate);
		}
		codec = codec->next;
	}
}

+ (id)getMessageAppDataForKey:(NSString *)key inMessage:(LinphoneChatMessage *)msg {

	if (msg == nil)
		return nil;

	id value = nil;
	const char *appData = linphone_chat_message_get_appdata(msg);
	if (appData) {
		NSDictionary *appDataDict =
			[NSJSONSerialization JSONObjectWithData:[NSData dataWithBytes:appData length:strlen(appData)]
			 options:0
			 error:nil];
		value = [appDataDict objectForKey:key];
	}
	return value;
}

+ (void)setValueInMessageAppData:(id)value forKey:(NSString *)key inMessage:(LinphoneChatMessage *)msg {
        NSMutableDictionary *appDataDict = [NSMutableDictionary dictionary];
        const char *appData = linphone_chat_message_get_appdata(msg);
        if (appData) {
		appDataDict = [NSJSONSerialization JSONObjectWithData:[NSData dataWithBytes:appData length:strlen(appData)]
			       options:NSJSONReadingMutableContainers
			       error:nil];
        }

        [appDataDict setValue:value forKey:key];

        NSData *data = [NSJSONSerialization dataWithJSONObject:appDataDict options:0 error:nil];
        NSString *appdataJSON = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        linphone_chat_message_set_appdata(msg, [appdataJSON UTF8String]);
}

#pragma mark - LPConfig Functions

- (void)lpConfigSetString:(NSString *)value forKey:(NSString *)key {
	[self lpConfigSetString:value forKey:key inSection:LINPHONERC_APPLICATION_KEY];
}
- (void)lpConfigSetString:(NSString *)value forKey:(NSString *)key inSection:(NSString *)section {
	if (!key)
		return;
	linphone_config_set_string(_configDb, [section UTF8String], [key UTF8String], value ? [value UTF8String] : NULL);
}
- (NSString *)lpConfigStringForKey:(NSString *)key {
	return [self lpConfigStringForKey:key withDefault:nil];
}
- (NSString *)lpConfigStringForKey:(NSString *)key withDefault:(NSString *)defaultValue {
	return [self lpConfigStringForKey:key inSection:LINPHONERC_APPLICATION_KEY withDefault:defaultValue];
}
- (NSString *)lpConfigStringForKey:(NSString *)key inSection:(NSString *)section {
	return [self lpConfigStringForKey:key inSection:section withDefault:nil];
}
- (NSString *)lpConfigStringForKey:(NSString *)key inSection:(NSString *)section withDefault:(NSString *)defaultValue {
	if (!key)
		return defaultValue;
	const char *value = linphone_config_get_string(_configDb, [section UTF8String], [key UTF8String], NULL);
	return value ? [NSString stringWithUTF8String:value] : defaultValue;
}

- (void)lpConfigSetInt:(int)value forKey:(NSString *)key {
	[self lpConfigSetInt:value forKey:key inSection:LINPHONERC_APPLICATION_KEY];
}
- (void)lpConfigSetInt:(int)value forKey:(NSString *)key inSection:(NSString *)section {
	if (!key)
		return;
	linphone_config_set_int(_configDb, [section UTF8String], [key UTF8String], (int)value);
}
- (int)lpConfigIntForKey:(NSString *)key {
	return [self lpConfigIntForKey:key withDefault:-1];
}
- (int)lpConfigIntForKey:(NSString *)key withDefault:(int)defaultValue {
	return [self lpConfigIntForKey:key inSection:LINPHONERC_APPLICATION_KEY withDefault:defaultValue];
}
- (int)lpConfigIntForKey:(NSString *)key inSection:(NSString *)section {
	return [self lpConfigIntForKey:key inSection:section withDefault:-1];
}
- (int)lpConfigIntForKey:(NSString *)key inSection:(NSString *)section withDefault:(int)defaultValue {
	if (!key)
		return defaultValue;
	return linphone_config_get_int(_configDb, [section UTF8String], [key UTF8String], (int)defaultValue);
}

- (void)lpConfigSetBool:(BOOL)value forKey:(NSString *)key {
	[self lpConfigSetBool:value forKey:key inSection:LINPHONERC_APPLICATION_KEY];
}
- (void)lpConfigSetBool:(BOOL)value forKey:(NSString *)key inSection:(NSString *)section {
	[self lpConfigSetInt:(int)(value == TRUE) forKey:key inSection:section];
}
- (BOOL)lpConfigBoolForKey:(NSString *)key {
	return [self lpConfigBoolForKey:key withDefault:FALSE];
}
- (BOOL)lpConfigBoolForKey:(NSString *)key withDefault:(BOOL)defaultValue {
	return [self lpConfigBoolForKey:key inSection:LINPHONERC_APPLICATION_KEY withDefault:defaultValue];
}
- (BOOL)lpConfigBoolForKey:(NSString *)key inSection:(NSString *)section {
	return [self lpConfigBoolForKey:key inSection:section withDefault:FALSE];
}
- (BOOL)lpConfigBoolForKey:(NSString *)key inSection:(NSString *)section withDefault:(BOOL)defaultValue {
	if (!key)
		return defaultValue;
	int val = [self lpConfigIntForKey:key inSection:section withDefault:-1];
	return (val != -1) ? (val == 1) : defaultValue;
}

#pragma mark - GSM management

- (void)removeCTCallCenterCb {
	if (mCallCenter != nil) {
		LOGI(@"Removing CT call center listener [%p]", mCallCenter);
		mCallCenter.callEventHandler = NULL;
	}
	mCallCenter = nil;
}

- (BOOL)isCTCallCenterExist {
	return mCallCenter != nil;
}

- (void)setupGSMInteraction {

	[self removeCTCallCenterCb];
	mCallCenter = [[CTCallCenter alloc] init];
	LOGI(@"Adding CT call center listener [%p]", mCallCenter);
	__block __weak LinphoneManager *weakSelf = self;
	__block __weak CTCallCenter *weakCCenter = mCallCenter;
	mCallCenter.callEventHandler = ^(CTCall *call) {
		// post on main thread
		[weakSelf performSelectorOnMainThread:@selector(handleGSMCallInteration:)
		 withObject:weakCCenter
		 waitUntilDone:YES];
	};
}

- (void)handleGSMCallInteration:(id)cCenter {
	if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_9_x_Max) {
		CTCallCenter *ct = (CTCallCenter *)cCenter;
		// pause current call, if any
		LinphoneCall *call = linphone_core_get_current_call(theLinphoneCore);
		if ([ct currentCalls] != nil) {
			if (call) {
				LOGI(@"Pausing SIP call because GSM call");
				CallManager.instance.speakerBeforePause = CallManager.instance.speakerEnabled;
				linphone_call_pause(call);
				[self startCallPausedLongRunningTask];
			} else if (linphone_core_is_in_conference(theLinphoneCore)) {
				LOGI(@"Leaving conference call because GSM call");
				linphone_core_leave_conference(theLinphoneCore);
				[self startCallPausedLongRunningTask];
			}
		} // else nop, keep call in paused state
	}
}

- (NSString *)contactFilter {
	NSString *filter = @"*";
	if ([self lpConfigBoolForKey:@"contact_filter_on_default_domain"]) {
		LinphoneProxyConfig *proxy_cfg = linphone_core_get_default_proxy_config(theLinphoneCore);
		if (proxy_cfg && linphone_proxy_config_get_addr(proxy_cfg)) {
			return [NSString stringWithCString:linphone_proxy_config_get_domain(proxy_cfg)
				encoding:[NSString defaultCStringEncoding]];
		}
	}
	return filter;
}

#pragma mark - InApp Purchase events

- (void)inappReady:(NSNotification *)notif {
	// Query our in-app server to retrieve InApp purchases
	//[_iapManager retrievePurchases];
}

#pragma mark -

- (void)removeAllAccounts {
	linphone_core_clear_proxy_config(LC);
	linphone_core_clear_all_auth_info(LC);
}

+ (BOOL)isMyself:(const LinphoneAddress *)addr {
	if (!addr)
		return NO;

	const MSList *it = linphone_core_get_proxy_config_list(LC);
	while (it) {
		if (linphone_address_weak_equal(addr, linphone_proxy_config_get_identity_address(it->data))) {
			return YES;
		}
		it = it->next;
	}
	return NO;
}

// ugly hack to export symbol from liblinphone so that they are available for the linphoneTests target
// linphoneTests target do not link with liblinphone but instead dynamically link with ourself which is
// statically linked with liblinphone, so we must have exported required symbols from the library to
// have them available in linphoneTests
// DO NOT INVOKE THIS METHOD
- (void)exportSymbolsForUITests {
	linphone_address_set_header(NULL, NULL, NULL);
}

- (void)checkNewVersion {
	if (!CHECK_VERSION_UPDATE)
		return;
	if (theLinphoneCore == nil)
		return;
	NSString *curVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
	const char *curVersionCString = [curVersion cStringUsingEncoding:NSUTF8StringEncoding];
	linphone_core_check_for_update(theLinphoneCore, curVersionCString);
}

- (void)loadAvatar {
	NSString *assetId = [self lpConfigStringForKey:@"avatar"];
	__block UIImage *ret = nil;
	if (assetId) {
		PHFetchResult<PHAsset *> *assets = [PHAsset fetchAssetsWithLocalIdentifiers:[NSArray arrayWithObject:assetId] options:nil];
		if (![assets firstObject]) {
			LOGE(@"Can't fetch avatar image.");
		}
		PHAsset *asset = [assets firstObject];
		// load avatar synchronously so that we can return UIIMage* directly - since we are
		// only using thumbnail, it must be pretty fast to fetch even without cache.
		PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init];
		options.synchronous = TRUE;
		[[PHImageManager defaultManager] requestImageForAsset:asset targetSize:PHImageManagerMaximumSize contentMode:PHImageContentModeDefault options:options
		 resultHandler:^(UIImage *image, NSDictionary * info) {
				if (image)
					ret = [UIImage UIImageThumbnail:image thumbSize:150];
				else
					LOGE(@"Can't read avatar");
			}];
	}
    
	if (!ret) {
		ret = [UIImage imageNamed:@"avatar.png"];
	}
	_avatar = ret;
}

@end