獲取唯一標識UUID UDID
阿新 • • 發佈：2019-01-30
#import "SvUDIDTools.h"
#import <Security/Security.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_dl.h>
// replace the identity with your company's domain
static const char kKeychainUDIDItemIdentifier[] = "UUID";
static const char kKeyChainUDIDAccessGroup[] = "YOURAPPID.com.cnblogs.smileEvday";
@implementation SvUDIDTools
+ (NSString*)UDID
{
NSString *udid = [SvUDIDTools getUDIDFromKeyChain];
if (!udid) {
NSString *sysVersion = [UIDevice currentDevice].systemVersion;
CGFloat version = [sysVersion floatValue];
if (version >= 7.0) {
udid = [SvUDIDTools _UDID_iOS7];
}
else if (version >= 2.0) {
udid = [SvUDIDTools _UDID_iOS6];
}
[SvUDIDTools settUDIDToKeyChain:udid];
}
return udid;
}
/*
* iOS 6.0
* use wifi's mac address
*/
+ (NSString*)_UDID_iOS6
{
return [SvUDIDTools getMacAddress];
}
/*
* iOS 7.0
* Starting from iOS 7, the system always returns the value 02:00:00:00:00:00
* when you ask for the MAC address on any device.
* use identifierForVendor + keyChain
* make sure UDID consistency atfer app delete and reinstall
*/
+ (NSString*)_UDID_iOS7
{
//IOS7就差keychain了，因為identifierforvendor只要不刪除程式都 是唯一 的
//keychain是隻要不重灌都 是唯一，弄起來麻煩耗時
return [[UIDevice currentDevice].identifierForVendor UUIDString];
}
#pragma mark -
#pragma mark Helper Method for Get Mac Address
// from http://stackoverflow.com/questions/677530/how-can-i-programmatically-get-the-mac-address-of-an-iphone
+ (NSString *)getMacAddress
{
int mgmtInfoBase[6];
char *msgBuffer = NULL;
size_t length;
unsigned char macAddress[6];
struct if_msghdr *interfaceMsgStruct;
struct sockaddr_dl *socketStruct;
NSString *errorFlag = nil;
// Setup the management Information Base (mib)
mgmtInfoBase[0] = CTL_NET; // Request network subsystem
mgmtInfoBase[1] = AF_ROUTE; // Routing table info
mgmtInfoBase[2] = 0;
mgmtInfoBase[3] = AF_LINK; // Request link layer information
mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces
// With all configured interfaces requested, get handle index
if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
errorFlag = @"if_nametoindex failure";
else
{
// Get the size of the data available (store in len)
if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
errorFlag = @"sysctl mgmtInfoBase failure";
else
{
// Alloc memory based on above call
if ((msgBuffer = malloc(length)) == NULL)
errorFlag = @"buffer allocation failure";
else
{
// Get system information, store in buffer
if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
errorFlag = @"sysctl msgBuffer failure";
}
}
}
// Befor going any further...
if (errorFlag != NULL)
{
NSLog(@"Error: %@", errorFlag);
if (msgBuffer) {
free(msgBuffer);
}
return errorFlag;
}
// Map msgbuffer to interface message structure
interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
// Map to link-level socket structure
socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
// Copy link layer address data in socket structure to an array
memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
// Read from char array into a string object, into traditional Mac address format
NSString *macAddressString = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
macAddress[0], macAddress[1], macAddress[2],
macAddress[3], macAddress[4], macAddress[5]];
NSLog(@"Mac Address: %@", macAddressString);
// Release the buffer memory
free(msgBuffer);
return macAddressString;
}
#pragma mark -
#pragma mark Helper Method for make identityForVendor consistency
+ (NSString*)getUDIDFromKeyChain
{
NSMutableDictionary *dictForQuery = [[NSMutableDictionary alloc] init];
[dictForQuery setValue:(id)kSecClassGenericPassword forKey:(id)kSecClass];
// set Attr Description for query
[dictForQuery setValue:[NSString stringWithUTF8String:kKeychainUDIDItemIdentifier]
forKey:kSecAttrDescription];
// set Attr Identity for query
NSData *keychainItemID = [NSData dataWithBytes:kKeychainUDIDItemIdentifier
length:strlen(kKeychainUDIDItemIdentifier)];
[dictForQuery setObject:keychainItemID forKey:(id)kSecAttrGeneric];
// The keychain access group attribute determines if this item can be shared
// amongst multiple apps whose code signing entitlements contain the same keychain access group.
NSString *accessGroup = [NSString stringWithUTF8String:kKeyChainUDIDAccessGroup];
if (accessGroup != nil)
{
#if TARGET_IPHONE_SIMULATOR
// Ignore the access group if running on the iPhone simulator.
//
// Apps that are built for the simulator aren't signed, so there's no keychain access group
// for the simulator to check. This means that all apps can see all keychain items when run
// on the simulator.
//
// If a SecItem contains an access group attribute, SecItemAdd and SecItemUpdate on the
// simulator will return -25243 (errSecNoAccessForItem).
#else
[dictForQuery setObject:accessGroup forKey:(id)kSecAttrAccessGroup];
#endif
}
[dictForQuery setValue:(id)kCFBooleanTrue forKey:(id)kSecMatchCaseInsensitive];
[dictForQuery setValue:(id)kSecMatchLimitOne forKey:(id)kSecMatchLimit];
[dictForQuery setValue:(id)kCFBooleanTrue forKey:(id)kSecReturnData];
OSStatus queryErr = noErr;
NSData *udidValue = nil;
NSString *udid = nil;
queryErr = SecItemCopyMatching((CFDictionaryRef)dictForQuery, (CFTypeRef*)&udidValue);
NSMutableDictionary *dict = nil;
[dictForQuery setValue:(id)kCFBooleanTrue forKey:(id)kSecReturnAttributes];
queryErr = SecItemCopyMatching((CFDictionaryRef)dictForQuery, (CFTypeRef*)&dict);
if (queryErr == errSecItemNotFound) {
NSLog(@"KeyChain Item: %@ not found!!!", [NSString stringWithUTF8String:kKeychainUDIDItemIdentifier]);
}
else if (queryErr != errSecSuccess) {
NSLog(@"KeyChain Item query Error!!! Error code:%ld", queryErr);
}
if (queryErr == errSecSuccess) {
NSLog(@"KeyChain Item: %@", udidValue);
if (udidValue) {
udid = [NSString stringWithUTF8String:udidValue.bytes];
}
}
[dictForQuery release];
return udid;
}
+ (BOOL)settUDIDToKeyChain:(NSString*)udid
{
NSMutableDictionary *dictForAdd = [[NSMutableDictionary alloc] init];
[dictForAdd setValue:(id)kSecClassGenericPassword forKey:(id)kSecClass];
[dictForAdd setValue:[NSString stringWithUTF8String:kKeychainUDIDItemIdentifier] forKey:kSecAttrDescription];
[dictForAdd setValue:@"UUID" forKey:(id)kSecAttrGeneric];
// Default attributes for keychain item.
[dictForAdd setObject:@"" forKey:(id)kSecAttrAccount];
[dictForAdd setObject:@"" forKey:(id)kSecAttrLabel];
// The keychain access group attribute determines if this item can be shared
// amongst multiple apps whose code signing entitlements contain the same keychain access group.
NSString *accessGroup = [NSString stringWithUTF8String:kKeyChainUDIDAccessGroup];
if (accessGroup != nil)
{
#if TARGET_IPHONE_SIMULATOR
// Ignore the access group if running on the iPhone simulator.
//
// Apps that are built for the simulator aren't signed, so there's no keychain access group
// for the simulator to check. This means that all apps can see all keychain items when run
// on the simulator.
//
// If a SecItem contains an access group attribute, SecItemAdd and SecItemUpdate on the
// simulator will return -25243 (errSecNoAccessForItem).
#else
[dictForAdd setObject:accessGroup forKey:(id)kSecAttrAccessGroup];
#endif
}
const char *udidStr = [udid UTF8String];
NSData *keyChainItemValue = [NSData dataWithBytes:udidStr length:strlen(udidStr)];
[dictForAdd setValue:keyChainItemValue forKey:(id)kSecValueData];
OSStatus writeErr = noErr;
if ([SvUDIDTools getUDIDFromKeyChain]) { // there is item in keychain
[SvUDIDTools updateUDIDInKeyChain:udid];
[dictForAdd release];
return YES;
}
else { // add item to keychain
writeErr = SecItemAdd((CFDictionaryRef)dictForAdd, NULL);
if (writeErr != errSecSuccess) {
NSLog(@"Add KeyChain Item Error!!! Error Code:%ld", writeErr);
[dictForAdd release];
return NO;
}
else {
NSLog(@"Add KeyChain Item Success!!!");
[dictForAdd release];
return YES;
}
}
[dictForAdd release];
return NO;
}
+ (BOOL)removeUDIDFromKeyChain
{
NSMutableDictionary *dictToDelete = [[NSMutableDictionary alloc] init];
[dictToDelete setValue:(id)kSecClassGenericPassword forKey:(id)kSecClass];
NSData *keyChainItemID = [NSData dataWithBytes:kKeychainUDIDItemIdentifier length:strlen(kKeychainUDIDItemIdentifier)];
[dictToDelete setValue:keyChainItemID forKey:(id)kSecAttrGeneric];
OSStatus deleteErr = noErr;
deleteErr = SecItemDelete((CFDictionaryRef)dictToDelete);
if (deleteErr != errSecSuccess) {
NSLog(@"delete UUID from KeyChain Error!!! Error code:%ld", deleteErr);
[dictToDelete release];
return NO;
}
else {
NSLog(@"delete success!!!");
}
[dictToDelete release];
return YES;
}
+ (BOOL)updateUDIDInKeyChain:(NSString*)newUDID
{
NSMutableDictionary *dictForQuery = [[NSMutableDictionary alloc] init];
[dictForQuery setValue:(id)kSecClassGenericPassword forKey:(id)kSecClass];
NSData *keychainItemID = [NSData dataWithBytes:kKeychainUDIDItemIdentifier
length:strlen(kKeychainUDIDItemIdentifier)];
[dictForQuery setValue:keychainItemID forKey:(id)kSecAttrGeneric];
[dictForQuery setValue:(id)kCFBooleanTrue forKey:(id)kSecMatchCaseInsensitive];
[dictForQuery setValue:(id)kSecMatchLimitOne forKey:(id)kSecMatchLimit];
[dictForQuery setValue:(id)kCFBooleanTrue forKey:(id)kSecReturnAttributes];
NSDictionary *queryResult = nil;
SecItemCopyMatching((CFDictionaryRef)dictForQuery, (CFTypeRef*)&queryResult);
if (queryResult) {
NSMutableDictionary *dictForUpdate = [[NSMutableDictionary alloc] init];
[dictForUpdate setValue:[NSString stringWithUTF8String:kKeychainUDIDItemIdentifier] forKey:kSecAttrDescription];
[dictForUpdate setValue:keychainItemID forKey:(id)kSecAttrGeneric];
const char *udidStr = [newUDID UTF8String];
NSData *keyChainItemValue = [NSData dataWithBytes:udidStr length:strlen(udidStr)];
[dictForUpdate setValue:keyChainItemValue forKey:(id)kSecValueData];
OSStatus updateErr = noErr;
// First we need the attributes from the Keychain.
NSMutableDictionary *updateItem = [NSMutableDictionary dictionaryWithDictionary:queryResult];
// Second we need to add the appropriate search key/values.
// set kSecClass is Very important
[updateItem setObject:(id)kSecClassGenericPassword forKey:(id)kSecClass];
updateErr = SecItemUpdate((CFDictionaryRef)updateItem, (CFDictionaryRef)dictForUpdate);
if (updateErr != errSecSuccess) {
NSLog(@"Update KeyChain Item Error!!! Error Code:%ld", updateErr);
[dictForQuery release];
[dictForUpdate release];
return NO;
}
else {
NSLog(@"Update KeyChain Item Success!!!");
[dictForQuery release];
[dictForUpdate release];
return YES;
}
}
[dictForQuery release];
return NO;
}
@end