I developing iPhone application. In this app i need to get device udid. In simulator working fine, but in iphone device not getting correct value, the values getting 0.
The code are following;
UIDevice *device = [UIDevice currentDevice];
NSString *uniqueIdentifier = [device uniqueIdentifier];
Thanks,
As we know uniqueIdentifier is deprecated in iOS 5.0 so docs recommend you to use CFUUID
instead. You can get CFUUID using
CFUUIDRef uuidRef = CFUUIDCreate(kCFAllocatorDefault);
NSString *uuidString = (NSString *)CFUUIDCreateString(NULL,uuidRef);
CFRelease(uuidRef);
Please save the uuidString in user defaults or in other place because you can not generate the same uuidString again.
You can use mac address also in place of this as an alternative how-can-i-programmatically-get-the-mac-address-of-an-iphone
Hope it helps you.
UDID is deprecated. From 1st May 2013, Apple is not approving any app that access uniqueIdentifier. Instead you can use ASIIDentifier or NSUUID.Or MAC address.
I have followed this approach in IDManager class,
This is a collection from different solutions. KeyChainUtil is a wrapper to read from keychain.
#define kBuggyASIID #"00000000-0000-0000-0000-000000000000"
+ (NSString *) getUniqueID {
if (NSClassFromString(#"ASIdentifierManager")) {
NSString * asiID = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
if ([asiID compare:kBuggyASIID] == NSOrderedSame) {
NSLog(#"Error: This device return buggy advertisingIdentifier.");
return [IDManager getUniqueID];
} else {
return asiID;
}
} else {
return [IDManager getUniqueUUID];
}
}
+ (NSString *) getUniqueUUID {
NSError * error;
NSString * uuid = [KeychainUtils getPasswordForUsername:kBuyassUser andServiceName:kIdOgBetilngService error:&error];
if (error) {
NSLog(#"Error geting unique UUID for this device! %#", [error localizedDescription]);
return nil;
}
if (!uuid) {
DLog(#"No UUID found. Creating a new one.");
uuid = [IDManager GetUUID];
uuid = [Util md5String:uuid];
[KeychainUtils storeUsername:kBuyassUser andPassword:uuid forServiceName:kIdOgBetilngService updateExisting:YES error:&error];
if (error) {
NSLog(#"Error geting unique UUID for this device! %#", [error localizedDescription]);
return nil;
}
}
return uuid;
}
/* NSUUID is after iOS 6. */
+ (NSString *)GetUUID
{
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return [(NSString *)string autorelease];
}
#pragma mark - MAC address
// Return the local MAC addy
// Courtesy of FreeBSD hackers email list
// Last fallback for unique identifier
+ (NSString *) getMACAddress
{
int mib[6];
size_t len;
char *buf;
unsigned char *ptr;
struct if_msghdr *ifm;
struct sockaddr_dl *sdl;
mib[0] = CTL_NET;
mib[1] = AF_ROUTE;
mib[2] = 0;
mib[3] = AF_LINK;
mib[4] = NET_RT_IFLIST;
if ((mib[5] = if_nametoindex("en0")) == 0) {
printf("Error: if_nametoindex error\n");
return NULL;
}
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 1\n");
return NULL;
}
if ((buf = malloc(len)) == NULL) {
printf("Error: Memory allocation error\n");
return NULL;
}
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 2\n");
free(buf); // Thanks, Remy "Psy" Demerest
return NULL;
}
ifm = (struct if_msghdr *)buf;
sdl = (struct sockaddr_dl *)(ifm + 1);
ptr = (unsigned char *)LLADDR(sdl);
NSString *outstring = [NSString stringWithFormat:#"%02X:%02X:%02X:%02X:%02X:%02X", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
free(buf);
return outstring;
}
I have been using the following code for a few years now and it has always worked, but it looks like with iOS 6 it doesn't anymore. How do I get a list of all contacts on an iOS 6 device?
ABAddressBookRef myAddressBook = ABAddressBookCreate();
NSMutableArray *people = (__bridge_transfer NSMutableArray *)ABAddressBookCopyArrayOfAllPeople(myAddressBook);
CFRelease(myAddressBook);
// repeat through all contacts in the inital array we loaded
for(int i=0; i<[people count]; i++)
{
NSString *aName;
NSString *firstName = (__bridge_transfer NSString *)ABRecordCopyValue((__bridge ABRecordRef)([people objectAtIndex:i]), kABPersonFirstNameProperty);
NSString *lastName = (__bridge_transfer NSString *)ABRecordCopyValue((__bridge ABRecordRef)([people objectAtIndex:i]), kABPersonLastNameProperty);
if (([firstName isEqualToString:#""] || [firstName isEqualToString:#"(null)"] || firstName == nil) &&
([lastName isEqualToString:#""] || [lastName isEqualToString:#"(null)"] || lastName == nil))
{
// do nothing
}
else
{
aName = [NSString stringWithFormat:#"%# %#", firstName, lastName];
if ([firstName isEqualToString:#""] || [firstName isEqualToString:#"(null)"] || firstName == nil)
{
aName = [NSString stringWithFormat:#"%#", lastName];
}
if ([lastName isEqualToString:#""] || [lastName isEqualToString:#"(null)"] || lastName == nil)
{
aName = [NSString stringWithFormat:#"%#", firstName];
}
[self.tableItems addObject:aName];
}
}
[self.tableItems sortUsingSelector:#selector(compare:)];
In ios6 you need to ask for permission to read the AddressBook, otherwise you'll get nil. Use something like this:
- (BOOL)askContactsPermission {
__block BOOL ret = NO;
if (ABAddressBookRequestAccessWithCompletion != NULL) { // we're on iOS6
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
ABAddressBookRef addressBook = ABAddressBookCreate();
ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
ret = granted;
dispatch_semaphore_signal(sema);
});
if (addressBook) {
CFRelease(addressBook);
}
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
dispatch_release(sema);
}
else { // we're on iOS5 or older
ret = YES;
}
return ret;
}
If this method returns NO, bad luck, you won't be able to access the AB. I'm locking with a semaphore here because I don't want to continue with my app if the user does not allow the AB. There other methods, just check the API.
You do need to ask the user for permission which will trigger a prompt to the user when you do so. Here's another way to do this using execution blocks to handle the result, also makes the usage of it version agnostic if you need to query your current access status from common code.
I implement an access manager like so
AppContactsAccessManager.h
#import <AddressBook/AddressBook.h>
typedef enum
{
kABAuthStatusNotDetermined = 0,
kABAuthStatusRestricted,
kABAuthStatusDenied,
kABAuthStatusAuthorized,
kABAuthStatusPending,
}AddressBookAuthStatus;
typedef void (^AddressbookRequestHandler)(ABAddressBookRef addressBookRef, BOOL available);
#interface AppContactsAccessManager : NSObject
{
AddressBookAuthStatus status;
}
- (void) requestAddressBookWithCompletionHandler:(AddressbookRequestHandler)handler;
- (AddressBookAuthStatus) addressBookAuthLevel;
#end
AppContactsAccessManager.m
#implementation AppContactsAccessManager
- (BOOL) isStatusAvailable:(AddressBookAuthStatus)theStatus
{
return (theStatus == kABAuthStatusAuthorized || theStatus == kABAuthStatusRestricted);
}
- (void) requestAddressBookWithCompletionHandler:(AddressbookRequestHandler)handler
{
ABAddressBookRef addressBookRef = NULL;
if([self isiOS6]){
addressBookRef = ABAddressBookCreateWithOptions(nil, nil);
ABAuthorizationStatus curStatus = ABAddressBookGetAuthorizationStatus();
if(curStatus == kABAuthorizationStatusNotDetermined)
{
status = kABAuthStatusPending;
ABAddressBookRequestAccessWithCompletion(addressBookRef, ^(bool granted, CFErrorRef error) {
status = ABAddressBookGetAuthorizationStatus();
if(handler != NULL){
handler(addressBookRef, [self isStatusAvailable:status]);
}
});
}else
{
status = curStatus;
dispatch_async(dispatch_get_current_queue(), ^{
if(handler != NULL){
handler(addressBookRef, [self isStatusAvailable:status]);
}
});
}
}else
{
addressBookRef = ABAddressBookCreate();
status = kABAuthStatusAuthorized;
dispatch_async(dispatch_get_current_queue(), ^{
if(handler != NULL){
handler(addressBookRef, [self isStatusAvailable:status]);
}
});
}
}
- (AddressBookAuthStatus) addressBookAuthLevel
{
return status;
}
#end
usage would look something like:
AppContactsAccessManager* accessMgr = [AppContactsAccessManager new];
[accessMgr requestAddressBookWithCompletionHandler:^(ABAddressBookRef theAddressBookRef, BOOL available) {
// do your addressbook stuff in here
}];
I am having issues implementing the code from the answer on this question: iPhone get SSID without private library
I have xcode 4.2 and iOS 5.1.
#import <SystemConfiguration/CaptiveNetwork.h>
- (id)fetchSSIDInfo
{
NSArray *ifs = (id)CNCopySupportedInterfaces();
NSLog(#"%s: Supported interfaces: %#", __func__, ifs);
id info = nil;
for (NSString *ifnam in ifs) {
info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);
NSLog(#"%s: %# => %#", __func__, ifnam, info);
if (info && [info count]) {
break;
}
[info release];
}
[ifs release];
return [info autorelease];
}
I get the following errors:
What am I doing wrong?
You need to add CFNetwork.framework to your project.
You can do it by selecting Targets > Summary> Linked Framework and Libraries.
I was wondering if anyone that was using the SFHFKeychainUtils managed to modify them to be compatible for ARC. More exactly the
NSDictionary *attributeResult = NULL;
NSMutableDictionary *attributeQuery = [query mutableCopy];
[attributeQuery setObject: (id) kCFBooleanTrue forKey:(__bridge id) kSecReturnAttributes];
OSStatus status = SecItemCopyMatching((CFDictionaryRef) attributeQuery,(CFTypeRef *)(attributeResult));
I tried
OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef) attributeQuery,(CFTypeRef *)(attributeResult));
also
CFTypeRef subAttributeResult = (CFTypeRef *)(objc_unretainedPointer(attributeResult));
OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef) attributeQuery,(CFTypeRef *)(subAttributeResult));
These 2 being the only 2 approaches I managed to get no errors for. Any other approach by adding objc_XXX instead of CFTypeRef here and there gets me errors(from implicit conversions from obj-c pointer to CFTypeRef is disallowed in ARC, to passing x parameter to y parameter discards qualifiers). Obviously the first snip of code gives an error too. Although I get no errors when building, app crashes with EXC_BAD_ACCESS when reaching this part of code.
The link for the full SFHFKeychainUtils: https://github.com/ldandersen/scifihifi-iphone/tree/master/security
Any help, please?
Thank you.
here is the ARC compatible SFHFKeychainUtils,
SFHFKeychainUtils.h
//
// SFHFKeychainUtils.h
//
// Created by Buzz Andersen on 10/20/08.
// Based partly on code by Jonathan Wight, Jon Crosby, and Mike Malone.
// Copyright 2008 Sci-Fi Hi-Fi. All rights reserved.
//
// 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 <UIKit/UIKit.h>
#interface SFHFKeychainUtils : NSObject {
}
+ (NSString *) getPasswordForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error;
+ (BOOL) storeUsername: (NSString *) username andPassword: (NSString *) password forServiceName: (NSString *) serviceName updateExisting: (BOOL) updateExisting error: (NSError **) error;
+ (BOOL) deleteItemForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error;
#end
SFHFKeychainUtils.m
//
// SFHFKeychainUtils.m
//
// Created by Buzz Andersen on 10/20/08.
// Based partly on code by Jonathan Wight, Jon Crosby, and Mike Malone.
// Copyright 2008 Sci-Fi Hi-Fi. All rights reserved.
//
// 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 "SFHFKeychainUtils.h"
#import <Security/Security.h>
static NSString *SFHFKeychainUtilsErrorDomain = #"SFHFKeychainUtilsErrorDomain";
#if __IPHONE_OS_VERSION_MIN_REQUIRED < 30000 && TARGET_IPHONE_SIMULATOR
#interface SFHFKeychainUtils (PrivateMethods)
(SecKeychainItemRef) getKeychainItemReferenceForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error;
#end
#endif
#implementation SFHFKeychainUtils
#if __IPHONE_OS_VERSION_MIN_REQUIRED < 30000 && TARGET_IPHONE_SIMULATOR
+(NSString *) getPasswordForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error {
if (!username || !serviceName) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
return nil;
}
SecKeychainItemRef item = [SFHFKeychainUtils getKeychainItemReferenceForUsername: username andServiceName: serviceName error: error];
if (*error || !item) {
return nil;
}
// from Advanced Mac OS X Programming, ch. 16
UInt32 length;
char *password;
SecKeychainAttribute attributes[8];
SecKeychainAttributeList list;
attributes[0].tag = kSecAccountItemAttr;
attributes[1].tag = kSecDescriptionItemAttr;
attributes[2].tag = kSecLabelItemAttr;
attributes[3].tag = kSecModDateItemAttr;
list.count = 4;
list.attr = attributes;
OSStatus status = SecKeychainItemCopyContent(item, NULL, &list, &length, (void **)&password);
if (status != noErr) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
return nil;
}
NSString *passwordString = nil;
if (password != NULL) {
char passwordBuffer[1024];
if (length > 1023) {
length = 1023;
}
strncpy(passwordBuffer, password, length);
passwordBuffer[length] = '\0';
passwordString = [NSString stringWithCString:passwordBuffer];
}
SecKeychainItemFreeContent(&list, password);
CFRelease(item);
return passwordString;
}
+ (void) storeUsername: (NSString *) username andPassword: (NSString *) password forServiceName: (NSString *) serviceName updateExisting: (BOOL) updateExisting error: (NSError **) error {
if (!username || !password || !serviceName) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
return;
}
OSStatus status = noErr;
SecKeychainItemRef item = [SFHFKeychainUtils getKeychainItemReferenceForUsername: username andServiceName: serviceName error: error];
if (*error && [*error code] != noErr) {
return;
}
*error = nil;
if (item) {
status = SecKeychainItemModifyAttributesAndData(item,NULL,strlen([password UTF8String]),[password UTF8String]);
CFRelease(item);
}
else {
status = SecKeychainAddGenericPassword(NULL,strlen([serviceName UTF8String]),[serviceName UTF8String],strlen([username UTF8String]),[username UTF8String],strlen([password UTF8String]),[password UTF8String],NULL);
}
if (status != noErr) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
}
}
+ (void) deleteItemForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error {
if (!username || !serviceName) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: 2000 userInfo: nil];
return;
}
*error = nil;
SecKeychainItemRef item = [SFHFKeychainUtils getKeychainItemReferenceForUsername: username andServiceName: serviceName error: error];
if (*error && [*error code] != noErr) {
return;
}
OSStatus status;
if (item) {
status = SecKeychainItemDelete(item);
CFRelease(item);
}
if (status != noErr) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
}
}
+ (SecKeychainItemRef) getKeychainItemReferenceForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error {
if (!username || !serviceName) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
return nil;
}
*error = nil;
SecKeychainItemRef item;
OSStatus status = SecKeychainFindGenericPassword(NULL,strlen([serviceName UTF8String]),[serviceName UTF8String],strlen([username UTF8String]),[username UTF8String], NULL,NULL,&item);
if (status != noErr) {
if (status != errSecItemNotFound) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
}
return nil;
}
return item;
}
#else
+ (NSString *) getPasswordForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error {
if (!username || !serviceName) {
if (error != nil) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
}
return nil;
}
if (error != nil) {
*error = nil;
}
// Set up a query dictionary with the base query attributes: item type (generic), username, and service
NSArray *keys = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClass, kSecAttrAccount, kSecAttrService, nil];
NSArray *objects = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClassGenericPassword, username, serviceName, nil];
NSMutableDictionary *query = [[NSMutableDictionary alloc] initWithObjects: objects forKeys: keys];
// First do a query for attributes, in case we already have a Keychain item with no password data set.
// One likely way such an incorrect item could have come about is due to the previous (incorrect)
// version of this code (which set the password as a generic attribute instead of password data).
NSMutableDictionary *attributeQuery = [query mutableCopy];
[attributeQuery setObject: (id) kCFBooleanTrue forKey:(__bridge_transfer id) kSecReturnAttributes];
CFTypeRef attrResult = NULL;
OSStatus status = SecItemCopyMatching((__bridge_retained CFDictionaryRef) attributeQuery, &attrResult);
//NSDictionary *attributeResult = (__bridge_transfer NSDictionary *)attrResult;
if (status != noErr) {
// No existing item found--simply return nil for the password
if (error != nil && status != errSecItemNotFound) {
//Only return an error if a real exception happened--not simply for "not found."
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
}
return nil;
}
// We have an existing item, now query for the password data associated with it.
NSMutableDictionary *passwordQuery = [query mutableCopy];
[passwordQuery setObject: (id) kCFBooleanTrue forKey: (__bridge_transfer id) kSecReturnData];
CFTypeRef resData = NULL;
status = SecItemCopyMatching((__bridge_retained CFDictionaryRef) passwordQuery, (CFTypeRef *) &resData);
NSData *resultData = (__bridge_transfer NSData *)resData;
if (status != noErr) {
if (status == errSecItemNotFound) {
// We found attributes for the item previously, but no password now, so return a special error.
// Users of this API will probably want to detect this error and prompt the user to
// re-enter their credentials. When you attempt to store the re-entered credentials
// using storeUsername:andPassword:forServiceName:updateExisting:error
// the old, incorrect entry will be deleted and a new one with a properly encrypted
// password will be added.
if (error != nil) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -1999 userInfo: nil];
}
}
else {
// Something else went wrong. Simply return the normal Keychain API error code.
if (error != nil) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
}
}
return nil;
}
NSString *password = nil;
if (resultData) {
password = [[NSString alloc] initWithData: resultData encoding: NSUTF8StringEncoding];
}
else {
// There is an existing item, but we weren't able to get password data for it for some reason,
// Possibly as a result of an item being incorrectly entered by the previous code.
// Set the -1999 error so the code above us can prompt the user again.
if (error != nil) {
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -1999 userInfo: nil];
}
}
return password;
}
+ (BOOL) storeUsername: (NSString *) username andPassword: (NSString *) password forServiceName: (NSString *) serviceName updateExisting: (BOOL) updateExisting error: (NSError **) error
{
if (!username || !password || !serviceName)
{
if (error != nil)
{
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
}
return NO;
}
// See if we already have a password entered for these credentials.
NSError *getError = nil;
NSString *existingPassword = [SFHFKeychainUtils getPasswordForUsername: username andServiceName: serviceName error:&getError];
if ([getError code] == -1999)
{
// There is an existing entry without a password properly stored (possibly as a result of the previous incorrect version of this code.
// Delete the existing item before moving on entering a correct one.
getError = nil;
[self deleteItemForUsername: username andServiceName: serviceName error: &getError];
if ([getError code] != noErr)
{
if (error != nil)
{
*error = getError;
}
return NO;
}
}
else if ([getError code] != noErr)
{
if (error != nil)
{
*error = getError;
}
return NO;
}
if (error != nil)
{
*error = nil;
}
OSStatus status = noErr;
if (existingPassword)
{
// We have an existing, properly entered item with a password.
// Update the existing item.
if (![existingPassword isEqualToString:password] && updateExisting)
{
//Only update if we're allowed to update existing. If not, simply do nothing.
NSArray *keys = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClass,kSecAttrService,kSecAttrLabel,kSecAttrAccount,nil];
NSArray *objects = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClassGenericPassword,serviceName,serviceName,username,nil];
NSDictionary *query = [[NSDictionary alloc] initWithObjects: objects forKeys: keys];
status = SecItemUpdate((__bridge_retained CFDictionaryRef) query, (__bridge_retained CFDictionaryRef) [NSDictionary dictionaryWithObject: [password dataUsingEncoding: NSUTF8StringEncoding] forKey: (__bridge_transfer NSString *) kSecValueData]);
}
}
else
{
// No existing entry (or an existing, improperly entered, and therefore now
// deleted, entry). Create a new entry.
NSArray *keys = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClass,kSecAttrService,kSecAttrLabel,kSecAttrAccount,kSecValueData,nil];
NSArray *objects = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClassGenericPassword,serviceName,serviceName,username,[password dataUsingEncoding: NSUTF8StringEncoding],nil];
NSDictionary *query = [[NSDictionary alloc] initWithObjects: objects forKeys: keys];
status = SecItemAdd((__bridge_retained CFDictionaryRef) query, NULL);
}
if (error != nil && status != noErr)
{
// Something went wrong with adding the new item. Return the Keychain error code.
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
return NO;
}
return YES;
}
+ (BOOL) deleteItemForUsername: (NSString *) username andServiceName: (NSString *) serviceName error: (NSError **) error
{
if (!username || !serviceName)
{
if (error != nil)
{
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: -2000 userInfo: nil];
}
return NO;
}
if (error != nil)
{
*error = nil;
}
NSArray *keys = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClass, kSecAttrAccount, kSecAttrService, kSecReturnAttributes, nil];
NSArray *objects = [[NSArray alloc] initWithObjects: (__bridge_transfer NSString *) kSecClassGenericPassword, username, serviceName, kCFBooleanTrue, nil];
NSDictionary *query = [[NSDictionary alloc] initWithObjects: objects forKeys: keys];
OSStatus status = SecItemDelete((__bridge_retained CFDictionaryRef) query);
if (error != nil && status != noErr)
{
*error = [NSError errorWithDomain: SFHFKeychainUtilsErrorDomain code: status userInfo: nil];
return NO;
}
return YES;
}
#endif
#end
I had the same issue - and don't know who properly to credit this to - but the version of SFHFKeychainUtils in this github project works with ARC as a drop in replacement.
In case anybody lands on this page with the same question, I would recommend you have a look at Sam Soffes SSKeychain component.
Not only is it ARC compatible, its well documented, maintained and has more features than SFHFKeychainUtils.
You can always make that one file non-ARC.
I just moved another framework (MPOAuth) to ARC, this is how I solved this issue:
NSString *foundPassword = nil;
NSData *foundValue = nil;
CFTypeRef foundDict;
status = SecItemCopyMatching((__bridge CFDictionaryRef)attributeQuery, &foundDict);
if (status == noErr) {
attributesDictionary = (__bridge_transfer NSDictionary *)foundDict;
foundValue = [attributesDictionary objectForKey:(__bridge id)kSecValueData];
if (foundValue) {
foundPassword = [[NSString alloc] initWithData:foundValue
encoding:NSUTF8StringEncoding];
}
}
I'll have to verify whether this causes foundDict to leak or not..
See this question:
iPhone fetch data dictionary from keychain
I haven't tested it yet, but it sounds right. You won't need to disable ARC. It also has notes on how to get rid of the
Cast of an indirect pointer to an Objective-C pointer to 'CFTypeRef*'
(aka 'const void**') is disallowed with ARC.
error.
The developer specifically mentions in his Github page that SFHFKeychainUtils should be considered deprecated, and to look at STKeychain instead in STUtils:
https://github.com/ldandersen/STUtils/tree/master/Security
getting problem is that and how can solve this .I trying the internet is On than my must go for SYNC process .but i was work how can do this.
[TDatasyncmanager chekNetworkStatus:]':
:incompatible types in initialization
:switch quantity not an integer
I am trying to check the internet connection and host network connection like this
TDatasyncmanager.h file
#import "Reachability.h"
#interface TDatasyncmanager : UIViewController
{
Reachability *internetReachable;
Reachability *hostReachable;
BOOL internetActive;
NSMutableData *webData;
}
-(void)chekNetworkStatus:(NSNotification*)notice;
#end
And in TDatasyncmanager.m file
#import "TDatasyncmanager.h"
#import "Reachability.h"
#implementation TDatasyncmanager
#synthesize internetActive;
- (void)viewDidLoad {
[super viewDidLoad];
//check for internet connection
[[NSNotification defaultCenter] addObserver:self selector:#selector(checkNetworkStatus:) name:kReachabilityChangedNotification object:nil];
[internetReachable startNotifier];
//check for apathwa to arandom host exits
hostReachable = [[Reachability reachabilityWithHostName:#"http://www.google.com"]retain];
[hostReachable startNotifier];
if(internetActive == YES)
{
NSLog(#"tokenapi:%# annan %#",tokenapi,Contentid);
NSString *post;
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSLog(#"%#",postLength);
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"http://192.168.0.1:88/"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (theConnection) {
webData = [[NSMutableData data] retain];
NSLog(#"%#",webData);
//[theConnection start];
}
}
}
-(void)chekNetworkStatus:(NSNotification *)notice
{
**//called after network status changes
NetworkStatus *internetStatus = [internetReachable currentReachabilityStatus];//:incompatible types in initialization
switch(internetStatus)//:switch quantity not an integer**
{
case NotReachable:
{
NSLog(#"The internet is down.");
self.internetActive = NO;
break;
}
case ReachableViaWiFi:
{
NSLog(#"The internet is working via WIFI.");
self.internetActive = YES;
break;
}
case ReachableViaWWAN:
{
NSLog(#"The internet is working via WWAN.");
self.internetActive = YES;
break;
}
default:
{
NSLog(#"The internet by defualt is Not working.");
self.internetActive = NO;
break;
}
}
NetworkStatus hostStatus = [hostReachable currentReachabilityStatus];
switch (hostStatus)
{
case NotReachable:
{
NSLog(#"The internet is down.");
self.internetActive = NO;
break;
}
case ReachableViaWiFi:
{
NSLog(#"The internet is working Via WIFI.");
self.internetActive = YES;
break;
}
case ReachableViaWWAN:
{
NSLog(#"The internet is working Via WWAN.");
self.internetActive = YES;
break;
}
default:
{
NSLog(#"the internet is down.");
self.internetActive= NO;
}
}
}
for Checking Network Present Status We Need Two Classes
Reachability.h
#import <Foundation/Foundation.h>
#import <SystemConfiguration/SystemConfiguration.h>
typedef enum {
NotReachable = 0,
ReachableViaWiFi,
ReachableViaWWAN
} NetworkStatus;
#define kReachabilityChangedNotification #"kNetworkReachabilityChangedNotification"
#interface Reachability: NSObject
{
BOOL localWiFiRef;
SCNetworkReachabilityRef reachabilityRef;
}
//reachabilityWithHostName- Use to check the reachability of a particular host name.
+ (Reachability*) reachabilityWithHostName: (NSString*) hostName;
//reachabilityWithAddress- Use to check the reachability of a particular IP address.
+ (Reachability*) reachabilityWithAddress: (const struct sockaddr_in*) hostAddress;
//reachabilityForInternetConnection- checks whether the default route is available.
// Should be used by applications that do not connect to a particular host
+ (Reachability*) reachabilityForInternetConnection;
//reachabilityForLocalWiFi- checks whether a local wifi connection is available.
+ (Reachability*) reachabilityForLocalWiFi;
//Start listening for reachability notifications on the current run loop
- (BOOL) startNotifer;
- (void) stopNotifer;
- (NetworkStatus) currentReachabilityStatus;
//WWAN may be available, but not active until a connection has been established.
//WiFi may require a connection for VPN on Demand.
- (BOOL) connectionRequired;
#end
Reachability.m
#import <sys/socket.h>
#import <netinet/in.h>
#import <netinet6/in6.h>
#import <arpa/inet.h>
#import <ifaddrs.h>
#import <netdb.h>
#import <CoreFoundation/CoreFoundation.h>
#import "Reachability.h"
#define kShouldPrintReachabilityFlags 1
static void PrintReachabilityFlags(SCNetworkReachabilityFlags flags, const char* comment)
{
#if kShouldPrintReachabilityFlags
NSLog(#"Reachability Flag Status: %c%c %c%c%c%c%c%c%c %s\n",
(flags & kSCNetworkReachabilityFlagsIsWWAN) ? 'W' : '-',
(flags & kSCNetworkReachabilityFlagsReachable) ? 'R' : '-',
(flags & kSCNetworkReachabilityFlagsTransientConnection) ? 't' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionRequired) ? 'c' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionOnTraffic) ? 'C' : '-',
(flags & kSCNetworkReachabilityFlagsInterventionRequired) ? 'i' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionOnDemand) ? 'D' : '-',
(flags & kSCNetworkReachabilityFlagsIsLocalAddress) ? 'l' : '-',
(flags & kSCNetworkReachabilityFlagsIsDirect) ? 'd' : '-',
comment
);
#endif
}
#implementation Reachability
static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info)
{
#pragma unused (target, flags)
NSCAssert(info != NULL, #"info was NULL in ReachabilityCallback");
NSCAssert([(NSObject*) info isKindOfClass: [Reachability class]], #"info was wrong class in ReachabilityCallback");
//We're on the main RunLoop, so an NSAutoreleasePool is not necessary, but is added defensively
// in case someon uses the Reachablity object in a different thread.
NSAutoreleasePool* myPool = [[NSAutoreleasePool alloc] init];
Reachability* noteObject = (Reachability*) info;
// Post a notification to notify the client that the network reachability changed.
[[NSNotificationCenter defaultCenter] postNotificationName: kReachabilityChangedNotification object: noteObject];
[myPool release];
}
- (BOOL) startNotifer
{
BOOL retVal = NO;
SCNetworkReachabilityContext context = {0, self, NULL, NULL, NULL};
if(SCNetworkReachabilitySetCallback(reachabilityRef, ReachabilityCallback, &context))
{
if(SCNetworkReachabilityScheduleWithRunLoop(reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode))
{
retVal = YES;
}
}
return retVal;
}
- (void) stopNotifer
{
if(reachabilityRef!= NULL)
{
SCNetworkReachabilityUnscheduleFromRunLoop(reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
}
}
- (void) dealloc
{
[self stopNotifer];
if(reachabilityRef!= NULL)
{
CFRelease(reachabilityRef);
}
[super dealloc];
}
+ (Reachability*) reachabilityWithHostName: (NSString*) hostName;
{
Reachability* retVal = NULL;
SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(NULL, [hostName UTF8String]);
if(reachability!= NULL)
{
retVal= [[[self alloc] init] autorelease];
if(retVal!= NULL)
{
retVal->reachabilityRef = reachability;
retVal->localWiFiRef = NO;
}
}
return retVal;
}
+ (Reachability*) reachabilityWithAddress: (const struct sockaddr_in*) hostAddress;
{
SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithAddress(kCFAllocatorDefault, (const struct sockaddr*)hostAddress);
Reachability* retVal = NULL;
if(reachability!= NULL)
{
retVal= [[[self alloc] init] autorelease];
if(retVal!= NULL)
{
retVal->reachabilityRef = reachability;
retVal->localWiFiRef = NO;
}
}
return retVal;
}
+ (Reachability*) reachabilityForInternetConnection;
{
struct sockaddr_in zeroAddress;
bzero(&zeroAddress, sizeof(zeroAddress));
zeroAddress.sin_len = sizeof(zeroAddress);
zeroAddress.sin_family = AF_INET;
return [self reachabilityWithAddress: &zeroAddress];
}
+ (Reachability*) reachabilityForLocalWiFi;
{
[super init];
struct sockaddr_in localWifiAddress;
bzero(&localWifiAddress, sizeof(localWifiAddress));
localWifiAddress.sin_len = sizeof(localWifiAddress);
localWifiAddress.sin_family = AF_INET;
// IN_LINKLOCALNETNUM is defined in <netinet/in.h> as 169.254.0.0
localWifiAddress.sin_addr.s_addr = htonl(IN_LINKLOCALNETNUM);
Reachability* retVal = [self reachabilityWithAddress: &localWifiAddress];
if(retVal!= NULL)
{
retVal->localWiFiRef = YES;
}
return retVal;
}
#pragma mark Network Flag Handling
- (NetworkStatus) localWiFiStatusForFlags: (SCNetworkReachabilityFlags) flags
{
PrintReachabilityFlags(flags, "localWiFiStatusForFlags");
BOOL retVal = NotReachable;
if((flags & kSCNetworkReachabilityFlagsReachable) && (flags & kSCNetworkReachabilityFlagsIsDirect))
{
retVal = ReachableViaWiFi;
}
return retVal;
}
- (NetworkStatus) networkStatusForFlags: (SCNetworkReachabilityFlags) flags
{
PrintReachabilityFlags(flags, "networkStatusForFlags");
if ((flags & kSCNetworkReachabilityFlagsReachable) == 0)
{
// if target host is not reachable
return NotReachable;
}
BOOL retVal = NotReachable;
if ((flags & kSCNetworkReachabilityFlagsConnectionRequired) == 0)
{
// if target host is reachable and no connection is required
// then we'll assume (for now) that your on Wi-Fi
retVal = ReachableViaWiFi;
}
if ((((flags & kSCNetworkReachabilityFlagsConnectionOnDemand ) != 0) ||
(flags & kSCNetworkReachabilityFlagsConnectionOnTraffic) != 0))
{
// ... and the connection is on-demand (or on-traffic) if the
// calling application is using the CFSocketStream or higher APIs
if ((flags & kSCNetworkReachabilityFlagsInterventionRequired) == 0)
{
// ... and no [user] intervention is needed
retVal = ReachableViaWiFi;
}
}
if ((flags & kSCNetworkReachabilityFlagsIsWWAN) == kSCNetworkReachabilityFlagsIsWWAN)
{
// ... but WWAN connections are OK if the calling application
// is using the CFNetwork (CFSocketStream?) APIs.
retVal = ReachableViaWWAN;
}
return retVal;
}
- (BOOL) connectionRequired;
{
NSAssert(reachabilityRef != NULL, #"connectionRequired called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags))
{
return (flags & kSCNetworkReachabilityFlagsConnectionRequired);
}
return NO;
}
- (NetworkStatus) currentReachabilityStatus
{
NSAssert(reachabilityRef != NULL, #"currentNetworkStatus called with NULL reachabilityRef");
NetworkStatus retVal = NotReachable;
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags))
{
if(localWiFiRef)
{
retVal = [self localWiFiStatusForFlags: flags];
}
else
{
retVal = [self networkStatusForFlags: flags];
}
}
return retVal;
}
#end
After That In Which Class You Want To Know STATUS ....
.H
#class Reachability
Reachability* internetReachable;
Reachability* hostReachable;
.m
internetReachable =[Reachability reachabilityForInternetConnection];
NetworkStatus internetStatus = [internetReachable currentReachabilityStatus];
switch (internetStatus)
{
case Not Reachable:
{
// No Internet Connection
}
default:
{ // Internet Available
}
}
NOTE - it's NSNotificationCenter you want to be referencing - not just NSNotification.