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Enable search-based intelligence for Objective C. #197
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| Original file line number | Diff line number | Diff line change |
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| ////////////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // B L I N K | ||
| // | ||
| // Copyright (C) 2016-2018 Blink Mobile Shell Project | ||
| // | ||
| // This file is part of Blink. | ||
| // | ||
| // Blink 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. | ||
| // | ||
| // Blink 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 Blink. If not, see <http://www.gnu.org/licenses/>. | ||
| // | ||
| // In addition, Blink is also subject to certain additional terms under | ||
| // GNU GPL version 3 section 7. | ||
| // | ||
| // You should have received a copy of these additional terms immediately | ||
| // following the terms and conditions of the GNU General Public License | ||
| // which accompanied the Blink Source Code. If not, see | ||
| // <http://www.github.com/blinksh/blink>. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////////// | ||
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| #import "GeoManager.h" | ||
| #import <CoreLocation/CoreLocation.h> | ||
| #import <ImageIO/ImageIO.h> | ||
| #import <UIKit/UIKit.h> | ||
| #import <UserNotifications/UserNotifications.h> | ||
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| NSString * BLGeoLockNotification = @"BLGeoLockNotification"; | ||
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| @interface GeoManager() <CLLocationManagerDelegate> | ||
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| @end | ||
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| // https://gist.github.com/rsattar/b06060df7ea293b398d1 | ||
| NSDictionary *__locationToJson(CLLocation * location) { | ||
| NSMutableDictionary *gps = [NSMutableDictionary dictionary]; | ||
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| // Example: | ||
| /* | ||
| "{GPS}" = { | ||
| Altitude = "41.28771929824561"; | ||
| AltitudeRef = 0; | ||
| DateStamp = "2014:07:21"; | ||
| ImgDirection = "68.2140221402214"; | ||
| ImgDirectionRef = T; | ||
| Latitude = "37.74252"; | ||
| LatitudeRef = N; | ||
| Longitude = "122.42035"; | ||
| LongitudeRef = W; | ||
| TimeStamp = "15:53:24"; | ||
| }; | ||
| */ | ||
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| // GPS tag version | ||
| // According to http://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf, | ||
| // this value is 2.3.0.0 | ||
| [gps setObject:@"2.3.0.0" forKey:(NSString *)kCGImagePropertyGPSVersion]; | ||
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| // Time and date must be provided as strings, not as an NSDate object | ||
| NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; | ||
| formatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"UTC"]; | ||
| formatter.dateFormat = @"HH:mm:ss.SSSSSS"; | ||
| gps[(NSString *)kCGImagePropertyGPSTimeStamp] = [formatter stringFromDate:location.timestamp]; | ||
| formatter.dateFormat = @"yyyy:MM:dd"; | ||
| gps[(NSString *)kCGImagePropertyGPSDateStamp] = [formatter stringFromDate:location.timestamp]; | ||
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| // Latitude | ||
| CLLocationDegrees latitude = location.coordinate.latitude; | ||
| gps[(NSString *)kCGImagePropertyGPSLatitudeRef] = (latitude < 0) ? @"S" : @"N"; | ||
| gps[(NSString *)kCGImagePropertyGPSLatitude] = @(fabs(latitude)); | ||
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| // Longitude | ||
| CLLocationDegrees longitude = location.coordinate.longitude; | ||
| gps[(NSString *)kCGImagePropertyGPSLongitudeRef] = (longitude < 0) ? @"W" : @"E"; | ||
| gps[(NSString *)kCGImagePropertyGPSLongitude] = @(fabs(longitude)); | ||
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| // Degree of Precision | ||
| gps[(NSString *)kCGImagePropertyGPSDOP] = @(location.horizontalAccuracy); | ||
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| // Altitude | ||
| CLLocationDistance altitude = location.altitude; | ||
| if (!isnan(altitude)) { | ||
| gps[(NSString *)kCGImagePropertyGPSAltitudeRef] = (altitude < 0) ? @(1) : @(0); | ||
| gps[(NSString *)kCGImagePropertyGPSAltitude] = @(fabs(altitude)); | ||
| } | ||
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| // Speed, must be converted from m/s to km/h | ||
| if (location.speed >= 0) { | ||
| gps[(NSString *)kCGImagePropertyGPSSpeedRef] = @"K"; | ||
| gps[(NSString *)kCGImagePropertyGPSSpeed] = @(location.speed * (3600.0/1000.0)); | ||
| } | ||
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| // Direction of movement | ||
| if (location.course >= 0) { | ||
| gps[(NSString *)kCGImagePropertyGPSTrackRef] = @"T"; | ||
| gps[(NSString *)kCGImagePropertyGPSTrack] = @(location.course); | ||
| } | ||
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| return gps; | ||
| } | ||
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| @implementation GeoManager { | ||
| CLLocationManager * _locManager; | ||
| NSMutableArray<CLLocation *> *_recentLocations; | ||
| NSNumber *_lockDistanceInMeters; | ||
| CLLocation *_lockCenter; | ||
| } | ||
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| - (instancetype)init { | ||
| if (self = [super init]) { | ||
| _recentLocations = [[NSMutableArray alloc] init]; | ||
| _locManager = [[CLLocationManager alloc] init]; | ||
| _locManager.delegate = self; | ||
| _traking = NO; | ||
| } | ||
| return self; | ||
| } | ||
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| + (GeoManager *)shared { | ||
| static GeoManager *manager = nil; | ||
| static dispatch_once_t onceToken; | ||
| dispatch_once(&onceToken, ^{ | ||
| manager = [[self alloc] init]; | ||
| }); | ||
| return manager; | ||
| } | ||
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| - (void)authorize { | ||
| [_locManager requestWhenInUseAuthorization]; | ||
| } | ||
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| - (void)start { | ||
| if (_traking) { | ||
| return; | ||
| } | ||
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| _locManager.desiredAccuracy = 100000; | ||
| _locManager.allowsBackgroundLocationUpdates = YES; | ||
| _locManager.pausesLocationUpdatesAutomatically = NO; | ||
| [_locManager startUpdatingLocation]; | ||
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| _traking = YES; | ||
| } | ||
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| - (void)lockInDistance:(NSNumber *)meters { | ||
| if (_traking) { | ||
| return; | ||
| } | ||
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| _lockDistanceInMeters = meters; | ||
| _locManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation; | ||
| _locManager.allowsBackgroundLocationUpdates = YES; | ||
| _locManager.pausesLocationUpdatesAutomatically = NO; | ||
| [_locManager startUpdatingLocation]; | ||
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| _traking = YES; | ||
| } | ||
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| - (void)_postLockNotifications { | ||
| [[NSNotificationCenter defaultCenter] postNotificationName:BLGeoLockNotification object:nil]; | ||
| UNUserNotificationCenter * center = [UNUserNotificationCenter currentNotificationCenter]; | ||
| [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) { | ||
| if (settings.authorizationStatus != UNAuthorizationStatusAuthorized) { | ||
| return; | ||
| } | ||
| if (settings.alertSetting != UNNotificationSettingEnabled) { | ||
| return; | ||
| } | ||
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| UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init]; | ||
| content.title = @"Geo lock"; | ||
| content.body = @"Your device get out of geo range lock.\nAll session are terminated."; | ||
| UNNotificationRequest *req = [UNNotificationRequest requestWithIdentifier:@"geo.lock" content:content trigger:nil]; | ||
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| [center addNotificationRequest:req withCompletionHandler:^(NSError * _Nullable error) { | ||
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| }]; | ||
| }]; | ||
| } | ||
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| - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations { | ||
| [_recentLocations addObjectsFromArray:locations]; | ||
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| if (_lockDistanceInMeters) { | ||
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| if (_lockCenter) { | ||
| CLLocationDistance distance = [_lockCenter distanceFromLocation:[_recentLocations lastObject]]; | ||
| if (distance > _lockDistanceInMeters.doubleValue) { | ||
| [self stop]; | ||
| [self _postLockNotifications]; | ||
| } | ||
| } else if (_recentLocations.count > 10) { | ||
| _lockCenter = [_recentLocations lastObject]; | ||
| } | ||
| } | ||
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| int maxHistory = 200; | ||
| if (_recentLocations.count > maxHistory) { | ||
| [_recentLocations removeObjectsInRange:NSMakeRange(0, _recentLocations.count - maxHistory)]; | ||
| } | ||
| } | ||
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| - (CLLocation * __nullable)lastLocation { | ||
| return [_recentLocations lastObject]; | ||
| } | ||
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| - (NSString *)currentJSON { | ||
| CLLocation * loc = [_recentLocations lastObject]; | ||
| if (!loc) { | ||
| return @"{}"; | ||
| } | ||
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| NSData *data = [NSJSONSerialization dataWithJSONObject:__locationToJson(loc) options:NSJSONWritingPrettyPrinted error:nil]; | ||
| return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; | ||
| } | ||
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| - (NSString *)lastJSONN:(int)n { | ||
| if (n <= 0) { | ||
| n = 1; | ||
| } | ||
| NSMutableArray *result = [[NSMutableArray alloc] init]; | ||
| NSArray *locs = [_recentLocations copy]; | ||
| if (locs.count == 0) { | ||
| return @"[]"; | ||
| } | ||
| int i = (int)locs.count; | ||
| while (n > 0 && i > 0) { | ||
| i--; | ||
| n--; | ||
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| CLLocation *loc = locs[i]; | ||
| NSDictionary *json = __locationToJson(loc); | ||
| [result addObject: json]; | ||
| } | ||
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| NSData *data = [NSJSONSerialization dataWithJSONObject:result options:NSJSONWritingPrettyPrinted error:nil]; | ||
| return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; | ||
| } | ||
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| - (void)stop { | ||
| if (_lockCenter) { | ||
| [_recentLocations removeAllObjects]; | ||
| } | ||
| _lockDistanceInMeters = nil; | ||
| _lockCenter = nil; | ||
| [_locManager stopUpdatingLocation]; | ||
| _traking = NO; | ||
| } | ||
|
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| @end |
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