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Merge pull request #376 from Psiphon-Labs/master
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MobileLibrary/iOS/PsiphonTunnel/PsiphonTunnel/JailbreakCheck/JailbreakCheck.h
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| // | ||
| // JailbreakCheck.h | ||
| // JailbreakCheck | ||
| // | ||
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| /* | ||
| * Copyright (c) 2017, Psiphon Inc. | ||
| * All rights reserved. | ||
| * | ||
| * 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/>. | ||
| * | ||
| */ | ||
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| @interface JailbreakCheck : NSObject | ||
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| + (BOOL)isDeviceJailbroken; | ||
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| @end |
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MobileLibrary/iOS/PsiphonTunnel/PsiphonTunnel/JailbreakCheck/JailbreakCheck.m
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| // Adapted from https://github.com/olxios/JailbreakCheck | ||
| /* | ||
| MIT License | ||
| Copyright (c) 2016 olxios | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| SOFTWARE. | ||
| */ | ||
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| #import <Foundation/Foundation.h> | ||
| #import "UIKit/UIKit.h" | ||
| #import <sys/stat.h> | ||
| #import "JailbreakCheck.h" | ||
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| @implementation JailbreakCheck | ||
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| BOOL checkReadWritePermissions() | ||
| { | ||
| // UIApplication:sharedApplication is disallowed in an application exetension | ||
| // (such as would be used by a whole-device Psiphon VPN). We may re-enable | ||
| // this code later, but leave it out for now to avoid confusion. | ||
| /* | ||
| if([[UIApplication sharedApplication] canOpenURL: | ||
| [NSURL URLWithString:@"cydia://package/com.com.com"]]) | ||
| { | ||
| return TRUE; | ||
| } | ||
| NSError *error; | ||
| NSString *stringToBeWritten = @"0"; | ||
| [stringToBeWritten writeToFile:@"/private/jailbreak.test" | ||
| atomically:YES | ||
| encoding:NSUTF8StringEncoding error:&error]; | ||
| if (error == nil) | ||
| { | ||
| return TRUE; | ||
| } | ||
| */ | ||
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| return FALSE; | ||
| } | ||
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| BOOL checkJailbreakSymLink(NSString *checkPath) | ||
| { | ||
| struct stat s; | ||
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| if (lstat([checkPath UTF8String], &s) == 0) | ||
| { | ||
| if (S_ISLNK(s.st_mode) == 1) | ||
| { | ||
| return TRUE; | ||
| } | ||
| } | ||
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| return FALSE; | ||
| } | ||
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| BOOL checkJailbreakSymlinks() | ||
| { | ||
| NSArray *linksChecks = @[@"/Applications", | ||
| @"/usr/libexec", | ||
| @"/usr/share", | ||
| @"/Library/Wallpaper", | ||
| @"/usr/include"]; | ||
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| for (NSString *checkPath in linksChecks) | ||
| { | ||
| if (checkJailbreakSymLink(checkPath)) { | ||
| return TRUE; | ||
| } | ||
| } | ||
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| return FALSE; | ||
| } | ||
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| BOOL checkJailbreakFile(NSString *checkPath) | ||
| { | ||
| struct stat s; | ||
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| if (stat([checkPath UTF8String], &s) == 0) | ||
| { | ||
| return TRUE; | ||
| } | ||
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| return FALSE; | ||
| } | ||
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| BOOL checkJailbreakFiles() | ||
| { | ||
| NSArray *fileChecks = @[@"/bin/bash", | ||
| @"/etc/apt", | ||
| @"/usr/sbin/sshd", | ||
| @"/Library/MobileSubstrate/MobileSubstrate.dylib", | ||
| @"/Applications/Cydia.app", | ||
| @"/bin/sh", | ||
| @"/var/cache/apt", | ||
| @"/var/tmp/cydia.log"]; | ||
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| for (NSString *checkPath in fileChecks) | ||
| { | ||
| if (checkJailbreakFile(checkPath)) { | ||
| return TRUE; | ||
| } | ||
| } | ||
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| return FALSE; | ||
| } | ||
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| + (BOOL)isDeviceJailbroken | ||
| { | ||
| return | ||
| checkJailbreakSymlinks() | ||
| || checkJailbreakFiles() | ||
| || checkReadWritePermissions(); | ||
| } | ||
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| @end |
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