越獄APP清理

- (void)clearTrace
{
        // Kill all App Store Apps
        NSFileManager *fileManager = [NSFileManager defaultManager];
        if ([fileManager fileExistsAtPath:@"/var/mobile/Library/Caches/com.apple.mobile.installation.plist"])
        {
                NSDictionary *dictionary1 = [NSDictionary dictionaryWithContentsOfFile:@"/var/mobile/Library/Caches/com.apple.mobile.installation.plist"];
                NSDictionary *dictionary2 = [dictionary1 objectForKey:@"User"];
                NSEnumerator *enumerator = [dictionary2 keyEnumerator];
                NSString *key;
                while ((key = [enumerator nextObject]))
                {
                        NSDictionary *dictionary3 = [dictionary2 objectForKey:key];
                        NSString *targetApp = [dictionary3 objectForKey:@"CFBundleExecutable"];
                        system([NSString stringWithFormat:@"killall -9 %@", targetApp] UTF8String]);
                }
        }

        // Kill Safari
        system("killall -9 MobileSafari");

        // Enumerate all App Store Apps' directories and delete /Documents, /Library, /tmp, /StoreKit
        NSDirectoryEnumerator *dirEnum = [fileManager enumeratorAtPath:@"/var/mobile/Applications/"];
        NSString *file;
        while ((file = [dirEnum nextObject]))
                if ([file hasSuffix:@"/Documents"] || [file hasSuffix:@"/Library"] || [file hasSuffix:@"/tmp"] || [file hasSuffix:@"/StoreKit"])
                {
                        [fileManager removeItemAtPath:[NSString stringWithFormat:@"/var/mobile/Applications/%@", file] error:nil];
                        [fileManager createDirectoryAtPath:[NSString stringWithFormat:@"/var/mobile/Applications/%@", file] withIntermediateDirectories:NO attributes:[NSDictionary dictionaryWithObjectsAndKeys:@"mobile", NSFileOwnerAccountName, @"mobile", NSFileGroupOwnerAccountName, nil] error:nil];
                }

        // Delete cookies
        [fileManager removeItemAtPath:@"/var/mobile/Library/Cookies/Cookies.binarycookies" error:nil];
        [fileManager removeItemAtPath:@"/private/var/root/Library/Cookies/Cookies.binarycookies" error:nil];
        [fileManager removeItemAtPath:@"/var/mobile/Library/Safari/History.plist" error:nil];
        [fileManager removeItemAtPath:@"/var/mobile/Library/Safari/SuspendState.plist" error:nil];

        // Delete pasteboard contents and relaunch pasteboardd
        system("launchctl unload -w /System/Library/LaunchDaemons/com.apple.UIKit.pasteboardd.plist");

        dirEnum = [fileManager enumeratorAtPath:@"/var/mobile/Library/Caches/com.apple.UIKit.pboard/"];
        while ((file = [dirEnum nextObject]))
                [fileManager removeItemAtPath:[NSString stringWithFormat:@"/var/mobile/Library/Caches/com.apple.UIKit.pboard/%@", file] error:nil];

        system("launchctl load -w /System/Library/LaunchDaemons/com.apple.UIKit.pasteboardd.plist");

        // Delete entries in keychain-2.db
        sqlite3 *database;
        int openResult = sqlite3_open("/var/Keychains/keychain-2.db", &database);
        if (openResult == SQLITE_OK)
        {
                int execResult = sqlite3_exec(database, "DELETE FROM genp WHERE agrp<>'apple'", NULL, NULL, NULL);
                if (execResult != SQLITE_OK) NSLog(@"iOSRE: Failed to exec DELETE FROM genp WHERE agrp<>'apple', error %d", execResult);

                execResult = sqlite3_exec(database, "DELETE FROM cert WHERE agrp<>'lockdown-identities'", NULL, NULL, NULL);
                if (execResult != SQLITE_OK) NSLog(@"iOSRE: Failed to exec DELETE FROM cert WHERE agrp<>'lockdown-identities', error %d", execResult);

                execResult = sqlite3_exec(database, "DELETE FROM keys WHERE agrp<>'lockdown-identities'", NULL, NULL, NULL);
                if (execResult != SQLITE_OK) NSLog(@"iOSRE: Failed to exec DELETE FROM keys WHERE agrp<>'lockdown-identities'', error %d", execResult);

                execResult = sqlite3_exec(database, "DELETE FROM inet", NULL, NULL, NULL);
                if (execResult != SQLITE_OK) NSLog(@"iOSRE: Failed to exec DELETE FROM inet, error %d", execResult);

                execResult = sqlite3_exec(database, "DELETE FROM sqlite_sequence", NULL, NULL, NULL);
                if (execResult != SQLITE_OK) NSLog(@"iOSRE: Failed to exec DELETE FROM sqlite_sequence, error %d", execResult);

                sqlite3_close(database);
        }
        else NSLog(@"iOSRE: Failed to open /var/Keychains/keychain-2.db, error %d", openResult);
}
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