常用的正则表达式 身份证信息和银行卡信息的判断

Posted 2020-07-30 Darren-chen

//邮箱
+ (BOOL) validateEmail:(NSString *)email
{
    NSString *emailRegex = @"[A-Z0-9a-z._%+-][email protected][A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    return [emailTest evaluateWithObject:email];
}

//手机号码验证。YES 是手机号
+ (BOOL) validateMobile:(NSString *)mobile
{
    //手机号以13，14， 15，17,18开头，八个 \d 数字字符
    NSString *phoneRegex = @"(^1[3|4|5|7|8][0-9]{9}$)";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    return [phoneTest evaluateWithObject:mobile];
}

//用户名   判断是否包含汉字
+ (BOOL) validateUserName:(NSString *)name{
    for(int i=0; i< [name length];i++){
        int a = [name characterAtIndex:i];
        if( a > 0x4e00 && a < 0x9fff){
            return YES;
        }
    } return NO;
    
}

//身份证号
+ (BOOL) validateIdentityCard: (NSString *)identityCard{
    
    BOOL flag;
    if (identityCard.length <= 0)
    {
        flag = NO;
        return flag;
    }
    
    NSString *regex2 = @"^(^[1-9]\\d{7}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}$)|(^[1-9]\\d{5}[1-9]\\d{3}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])((\\d{4})|\\d{3}[Xx])$)$";
    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];
    flag = [identityCardPredicate evaluateWithObject:identityCard];
    
    
    //如果通过该验证，说明身份证格式正确，但准确性还需计算
    if(flag)
    {
        if(identityCard.length==18)
        {
            //将前17位加权因子保存在数组里
            NSArray * idCardWiArray = @[@"7", @"9", @"10", @"5", @"8", @"4", @"2", @"1", @"6", @"3", @"7", @"9", @"10", @"5", @"8", @"4", @"2"];
            
            //这是除以11后，可能产生的11位余数、验证码，也保存成数组
            NSArray * idCardYArray = @[@"1", @"0", @"10", @"9", @"8", @"7", @"6", @"5", @"4", @"3", @"2"];
            
            //用来保存前17位各自乖以加权因子后的总和
            
            NSInteger idCardWiSum = 0;
            for(int i = 0;i < 17;i++)
            {
                NSInteger subStrIndex = [[identityCard substringWithRange:NSMakeRange(i, 1)] integerValue];
                NSInteger idCardWiIndex = [[idCardWiArray objectAtIndex:i] integerValue];
                
                idCardWiSum+= subStrIndex * idCardWiIndex;
                
            }
            
            //计算出校验码所在数组的位置
            NSInteger idCardMod=idCardWiSum%11;
            
            //得到最后一位身份证号码
            NSString * idCardLast= [identityCard substringWithRange:NSMakeRange(17, 1)];
            
            //如果等于2，则说明校验码是10，身份证号码最后一位应该是X
            if(idCardMod==2)
            {
                if([idCardLast isEqualToString:@"X"]||[idCardLast isEqualToString:@"x"])
                {
                    return flag;
                }else
                {
                    flag =  NO;
                    return flag;
                }
            }else
            {
                //用计算出的验证码与最后一位身份证号码匹配，如果一致，说明通过，否则是无效的身份证号码
                if([idCardLast isEqualToString: [idCardYArray objectAtIndex:idCardMod]])
                {
                    return flag;
                }
                else
                {
                    flag =  NO;
                    return flag;
                }
            }
        }
        else
        {
            flag =  NO;
            return flag;
        }
    }
    else
    {
        return flag;
    }
}

// 银行卡号
+ (BOOL) validateBankCard: (NSString *)bankCard
{
    if (bankCard.length == 0) {
        return NO;
    }
    NSString *digitsOnly = @"";
    char c;
    for (int i = 0; i < bankCard.length; i++)
    {
        c = [bankCard characterAtIndex:i];
        if (isdigit(c))
        {
            digitsOnly =[digitsOnly stringByAppendingFormat:@"%c",c];
        }
    }
    int sum = 0;
    int digit = 0;
    int addend = 0;
    BOOL timesTwo = false;
    for (NSInteger i = digitsOnly.length - 1; i >= 0; i--)
    {
        digit = [digitsOnly characterAtIndex:i] - ‘0‘;
        if (timesTwo)
        {
            addend = digit * 2;
            if (addend > 9) {
                addend -= 9;
            }
        }
        else {
            addend = digit;
        }
        sum += addend;
        timesTwo = !timesTwo;
    }
    int modulus = sum % 10;
    return modulus == 0;
}
//获取手机IP
+ (NSString *)getPhoneIP {
    NSString *address = @"error";
    struct ifaddrs *interfaces = NULL;
    struct ifaddrs *temp_addr = NULL;
    int success = 0;
    // retrieve the current interfaces - returns 0 on success
    success = getifaddrs(&interfaces);
    if (success == 0) {
        // Loop through linked list of interfaces
        temp_addr = interfaces;
        while(temp_addr != NULL) {
            if(temp_addr->ifa_addr->sa_family == AF_INET) {
                // Check if interface is en0 which is the wifi connection on the iPhone
                if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {
                    // Get NSString from C String
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            }
            temp_addr = temp_addr->ifa_next;
        }
    }
    // Free memory
    freeifaddrs(interfaces);
    if ([address isEqualToString:@"error"])
    {
        address = @"192.168.1.1";
    }
    return address;
    
}

//第一次进App
+ (BOOL)isFirstTimeEnterApp
{
    static NSString *fristTimeEnterAppKey = @"fristTimeEnterAppKey";
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    if([userDefaults objectForKey:fristTimeEnterAppKey])
    {
        return (NO);
    }
    [userDefaults setValue:@"" forKey:fristTimeEnterAppKey];
    return (YES);
}

/**
 *  MD5 加密字符串
 */
+ (NSString *)MD5NSString:(NSString *)string{
    
    if (string == nil || [string length] == 0) {
        return nil;
    }
    unsigned char digest[CC_MD5_DIGEST_LENGTH], i;
    CC_MD5([string UTF8String], (int)[string lengthOfBytesUsingEncoding:NSUTF8StringEncoding], digest);
    NSMutableString *ms = [NSMutableString string];
    
    for (i = 0; i < CC_MD5_DIGEST_LENGTH; i++) {
        [ms appendFormat:@"%02x", (int)(digest[i])];
    }
    
    return [ms copy];
    
}