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// DTTJailbreakDetection.m
//
// Copyright (c) 2014 Doan Truong Thi
//
// 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.
//
#import "DTTJailbreakDetection.h"
@implementation DTTJailbreakDetection
+ (BOOL)isJailbroken
{
#if !(TARGET_IPHONE_SIMULATOR)
FILE *file = fopen("/Applications/Cydia.app", "r");
if (file) {
fclose(file);
return YES;
}
file = fopen("/Library/MobileSubstrate/MobileSubstrate.dylib", "r");
if (file) {
fclose(file);
return YES;
}
file = fopen("/bin/bash", "r");
if (file) {
fclose(file);
return YES;
}
file = fopen("/usr/sbin/sshd", "r");
if (file) {
fclose(file);
return YES;
}
file = fopen("/etc/apt", "r");
if (file) {
fclose(file);
return YES;
}
file = fopen("/usr/bin/ssh", "r");
if (file) {
fclose(file);
return YES;
}
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:@"/Applications/Cydia.app"]) {
return YES;
} else if ([fileManager fileExistsAtPath:@"/Library/MobileSubstrate/MobileSubstrate.dylib"]) {
return YES;
} else if ([fileManager fileExistsAtPath:@"/bin/bash"]) {
return YES;
} else if ([fileManager fileExistsAtPath:@"/usr/sbin/sshd"]) {
return YES;
} else if ([fileManager fileExistsAtPath:@"/etc/apt"]) {
return YES;
} else if ([fileManager fileExistsAtPath:@"/usr/bin/ssh"]) {
return YES;
}
// Check if the app can access outside of its sandbox
NSError *error = nil;
NSString *string = @".";
[string writeToFile:@"/private/jailbreak.txt" atomically:YES encoding:NSUTF8StringEncoding error:&error];
if (!error) {
return YES;
} else {
[fileManager removeItemAtPath:@"/private/jailbreak.txt" error:nil];
}
// Check if the app can open a Cydia's URL scheme
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"cydia://package/com.example.package"]]) {
return YES;
}
#endif
return NO;
}
@end