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+/*
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+ * Copyright (c) 2021, Psiphon Inc.
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+ * All rights reserved.
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ *
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+ */
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+
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+#import "PsiphonClientPlatform.h"
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+#import <UIKit/UIKit.h>
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+#import "JailbreakCheck.h"
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+
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+@implementation PsiphonClientPlatform
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+
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++ (NSString *)getClientPlatform {
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+ // ClientPlatform must not contain:
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+ // - underscores, which are used by us to separate the constituent parts
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+ // - spaces, which are considered invalid by the server
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+ // Like "iOS". Older iOS reports "iPhone OS", which we will convert.
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+ NSString *systemName = [[UIDevice currentDevice] systemName];
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+
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+ if ([systemName isEqual: @"iPhone OS"]) {
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+ systemName = @"iOS";
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+ }
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+ systemName = [[systemName
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+ stringByReplacingOccurrencesOfString:@"_" withString:@"-"]
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+ stringByReplacingOccurrencesOfString:@" " withString:@"-"];
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+
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+ // Like "10.2.1"
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+ NSString *systemVersion = [[[[UIDevice currentDevice]systemVersion]
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+ stringByReplacingOccurrencesOfString:@"_" withString:@"-"]
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+ stringByReplacingOccurrencesOfString:@" " withString:@"-"];
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+
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+ // The value of this property is YES only when the process is an iOS app running on a Mac.
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+ // The value of the property is NO for all other apps on the Mac, including Mac apps built
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+ // using Mac Catalyst. The property is also NO for processes running on platforms other than macOS.
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+ BOOL isiOSAppOnMac = FALSE;
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+ if (@available(iOS 14.0, *)) {
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+ isiOSAppOnMac = [[NSProcessInfo processInfo] isiOSAppOnMac];
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+ }
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+
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+ // The value of this property is true when the process is:
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+ // - A Mac app built with Mac Catalyst, or an iOS app running on Apple silicon.
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+ // - Running on a Mac.
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+ BOOL isMacCatalystApp = FALSE;
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+ if (@available(iOS 14.0, *)) {
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+ isMacCatalystApp = [[NSProcessInfo processInfo] isMacCatalystApp];
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+ }
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+
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+ // Possible values are: "unjailbroken"/"jailbroken"/"iOSAppOnMac"/"MacCatalystApp"
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+ // Note that on Macs, users have root access, unlike iOS, where
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+ // the user has to jailbreak the device to get root access.
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+ NSString *detail = @"unjailbroken";
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+
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+ if (isiOSAppOnMac == TRUE && isMacCatalystApp == TRUE) {
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+ detail = @"iOSAppOnMac";
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+ } else if (isiOSAppOnMac == FALSE && isMacCatalystApp == TRUE) {
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+ detail = @"MacCatalystApp";
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+ } else {
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+ // App is an iOS app running on iOS.
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+ if ([JailbreakCheck isDeviceJailbroken] == TRUE) {
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+ detail = @"jailbroken";
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+ }
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+ }
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+
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+ // Like "com.psiphon3.browser"
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+ NSString *bundleIdentifier = [[[[NSBundle mainBundle] bundleIdentifier]
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+ stringByReplacingOccurrencesOfString:@"_" withString:@"-"]
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+ stringByReplacingOccurrencesOfString:@" " withString:@"-"];
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+
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+ NSString *clientPlatform = [NSString stringWithFormat:@"%@_%@_%@_%@",
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+ systemName,
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+ systemVersion,
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+ detail,
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+ bundleIdentifier];
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+
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+ return clientPlatform;
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+}
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+
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+@end
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Rod Hynes