//
//  HttpManager.m
//  myhome
//
//  Created by hkh on 16/11/6.
//

#import "Pub.h"
#import <CommonCrypto/CommonDigest.h>

@interface Pub (){
}


@end
@implementation Pub{

}
+ (AppDelegate *)getApp{
    AppDelegate *app = (AppDelegate *)[[UIApplication sharedApplication]delegate];
    return app;
}
+ (sysInfo *)getSysInfo{
    AppDelegate *app = (AppDelegate *)[[UIApplication sharedApplication]delegate];
    return app.sysinfo;
}
+ (BaseNavigationController*)getNav{
    UITabBarController *tab = (UITabBarController *)[Pub getApp].window.rootViewController;
    if(tab){
        UINavigationController *nav = tab.viewControllers[tab.selectedIndex];
        return nav;
    }
    return nil;
}

+ (NSString *)MD5:(NSString *)input     //大写
{
    const char *cStr = [input UTF8String];
    unsigned char digest[16];
    CC_MD5( cStr, (CC_LONG)strlen(cStr), digest ); // This is the md5 call
    
    NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
    
    for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
        [output appendFormat:@"%02X", digest[i]];
    
    return  output;
}

+ (NSString *)md5_:(NSString *)input     //大写
{
    const char *cStr = [input UTF8String];
    unsigned char digest[16];
    CC_MD5( cStr, (CC_LONG)strlen(cStr), digest ); // This is the md5 call
    
    NSMutableString *output = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
    
    for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
        [output appendFormat:@"%02x", digest[i]];
    
    return  output;
}

+ (NSDictionary *)DictionaryWithJsonString:(NSString *)jsonString {
    if (jsonString == nil) { return nil; }
    NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
    NSError *err;
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&err];
    if(err) {
        NSLog(@"json解析失败：%@",err);
        return nil;
    }
    return dic;
}

+ (void)addHead:(NSString *)head toByte:(Byte *)bb
{
    Byte *tempbb;
    NSString *tempS;
    NSData *tempData;
    tempS = @"XXXCID";
    tempData = [tempS dataUsingEncoding:NSUTF8StringEncoding];
    tempbb = (Byte *)[tempData bytes];
    memcpy(bb, tempbb, 6);
}

+ (void)addEquid:(NSString *)equId toByte:(Byte *)bb at:(int)pos
{
    Byte *tempbb;
    NSString *tempS;
    NSData *tempData;
    //本地
    tempS = equId;
    tempData = [tempS dataUsingEncoding:NSUTF8StringEncoding];
    tempbb = (Byte *)[tempData bytes];
    memcpy(bb+pos, tempbb, [tempData length]);
    for (int i=(int)[tempData length]; i<20; i++){
        bb[i+pos] = 0;
    }
}

+ (int)getBBlen:(Byte *)bb Len:(int)len{
    for(int i=0; i<len; i++){
        if (bb[i] == 0){
            return i;
        }
    }
    return len;
}

+ (int)addGKB:(NSString *)equId toByte:(Byte *)bb at:(int)pos
{
    Byte *tempbb;
    NSString *tempS;
    NSData *tempData;
    //本地
    
    NSStringEncoding gbkEncoding =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
    tempS = equId;
    tempData = [tempS dataUsingEncoding:gbkEncoding];
    tempbb = (Byte *)[tempData bytes];
    memcpy(bb+pos, tempbb, [tempData length]);
    return (int)[tempData length]  ;
}

+ (void)addIp:(NSString *)ip toByte:(Byte *)bb at:(int)pos
{
    NSArray *tempA = [ip componentsSeparatedByString:@"."];
    for (int i=0; i<tempA.count; i++){
        bb[i+pos] = [(NSString *)[tempA objectAtIndex:i] intValue];
    }
}

+ (void)addMac:(NSString *)mac toByte:(Byte *)bb at:(int)pos
{
    NSArray *tempA = [mac componentsSeparatedByString:@":"];
    for (int i=0; i<tempA.count; i++){
        bb[i+pos] = [self Ox:(NSString *)[tempA objectAtIndex:i]];
        bb[i+pos] = [self Ox:(NSString *)[tempA objectAtIndex:i]];
    }
}

+ (void)addInt:(int)port toByte:(Byte *)bb at:(int)pos
{
    bb[pos+3] = (Byte)((port & 0xFF000000) >> 24);
    bb[pos+2] = (Byte)((port & 0x00FF0000) >> 16);
    bb[pos+1] = (Byte)((port & 0x0000FF00) >> 8);
    bb[pos] = (Byte)((port & 0x000000FF) );
    
}
+ (void)addShort:(int)port toByte:(Byte *)bb at:(int)pos
{
    bb[pos+1] = (Byte)((port & 0x0000FF00) >> 8);
    bb[pos] = (Byte)((port & 0x000000FF) );
    
}
+ (short)getShortFromByte:(Byte *)bb at:(int)pos
{
    return bb[pos] + bb[pos+1]*256;
}

+ (int)Ox:(NSString *)v
{
    int n = 0;
    int p = 0;
    NSString *s;
    for (int i=0; i<v.length; i++){
        s = [v substringWithRange:NSMakeRange(i, 1)];
        if ([s isEqualToString:@"A"]|[s isEqualToString:@"a"]) p=10;
        else if ([s isEqualToString:@"B"]|[s isEqualToString:@"b"]) p=11;
        else if ([s isEqualToString:@"C"]|[s isEqualToString:@"c"]) p=12;
        else if ([s isEqualToString:@"D"]|[s isEqualToString:@"d"]) p=13;
        else if ([s isEqualToString:@"E"]|[s isEqualToString:@"e"]) p=14;
        else if ([s isEqualToString:@"F"]|[s isEqualToString:@"f"]) p=15;
        else p = [s intValue];
        for (int j=i+1; j<v.length; j++){
            p = p*16;
        }
        n += p;
    }
    return n;
}
+ (NSString *)getLocalIP
{
    dispatch_async(dispatch_get_main_queue(), ^{//转到主线程处理
        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);
        [Pub getApp].sysinfo.equip = address;
    });
    return [Pub getApp].sysinfo.equip;
 
}

//针对ipv6网络环境下适配，ipv4环境直接使用原来的地址

+ (NSString *)getMac
{
    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;
    }
    buf = malloc(len);
    if (buf == NULL) {
        printf("Could not allocate memory. error!/n");
        return NULL;
    }
    if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
        //printf("Error: sysctl, take 2");
        free(buf);
        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 uppercaseString];
}
+ (NSString *)getEquidFrombb:(Byte *)bb at:(int)pos {
    NSString *equid = nil;
    int equlen=8;
    if (bb[pos]==77) {//M
        equlen=8;
    }
    else if(bb[pos]==87) {//W
        equlen=5;
    }
    else if(bb[pos]==72){//H
        equlen=12;
    }
    else if(bb[pos]==83){//S
        equlen=12;
    }
    else if(bb[pos]==0x50){//P
        equlen=12;
    }
    else if(bb[pos]==0x54){//T
        equlen=16;
    }
    else{
        equlen=12;
    }
    
    Byte tempbb[equlen];
    memcpy(tempbb, bb+pos, equlen);
    NSData *aadata = [[NSData alloc] initWithBytes:tempbb length:equlen];
    NSStringEncoding gbkEncoding =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
    equid = [[NSString alloc] initWithData:aadata encoding:gbkEncoding];
    return equid;
}
+ (NSString *)NSdata2String:(NSData *)data{
    NSStringEncoding gbkEncoding =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
    return [[NSString alloc] initWithData:data encoding:gbkEncoding];
}
+ (NSData *)AES128_Encrypt:(NSString *)key encryptData:(NSData *)data{
    
    char keyPtr[kCCKeySizeAES128+1];
    bzero(keyPtr, sizeof(keyPtr));
    [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
    
    //无向量
//    char ivPtr[kCCKeySizeAES128+1];
//    memset(ivPtr, 0, sizeof(ivPtr));
//    [gIv getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
    
    NSUInteger dataLength = [data length];
    size_t bufferSize = dataLength + kCCBlockSizeAES128;
    void *buffer = malloc(bufferSize);
    size_t numBytesEncrypted = 0;
    CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
                                          kCCAlgorithmAES128,
                                          kCCOptionPKCS7Padding,
                                          keyPtr,
                                          kCCBlockSizeAES128,
                                          nil,
                                          [data bytes],
                                          dataLength,
                                          buffer,
                                          bufferSize,
                                          &numBytesEncrypted);
    if (cryptStatus == kCCSuccess) {
        return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];
    }
    free(buffer);
    return nil;
}
+ (NSData *)AES128_Decrypt:(NSString *)key encryptData:(NSData *)data{
    char keyPtr[kCCKeySizeAES128+1];
    bzero(keyPtr, sizeof(keyPtr));
    [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
    
    //无向量
//    char ivPtr[kCCKeySizeAES128+1];
//    memset(ivPtr, 0, sizeof(ivPtr));
//    [gIv getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
    
    NSUInteger dataLength = [data length];
    size_t bufferSize = dataLength + kCCBlockSizeAES128;
    void *buffer = malloc(bufferSize);
    size_t numBytesDecrypted = 0;
    CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
                                          kCCAlgorithmAES128,
                                          kCCOptionPKCS7Padding,
                                          keyPtr,
                                          kCCBlockSizeAES128,
                                          nil,
                                          [data bytes],
                                          dataLength,
                                          buffer,
                                          bufferSize,
                                          &numBytesDecrypted);
    if (cryptStatus == kCCSuccess) {
        return [NSData dataWithBytesNoCopy:buffer length:numBytesDecrypted];
    }
    free(buffer);
    return nil;
}

//将NSData转换成十六进制的字符串则可使用如下方式:
+ (NSString *)convertDataToHexStr:(NSData *)data {
    if (!data || [data length] == 0) {
        return @"";
    }
    NSMutableString *string = [[NSMutableString alloc] initWithCapacity:[data length]];
    
    [data enumerateByteRangesUsingBlock:^(const void *bytes, NSRange byteRange, BOOL *stop) {
        unsigned char *dataBytes = (unsigned char*)bytes;
        for (NSInteger i = 0; i < byteRange.length; i++) {
            NSString *hexStr = [NSString stringWithFormat:@"%x", (dataBytes[i]) & 0xff];
            if ([hexStr length] == 2) {
                [string appendString:hexStr];
            } else {
                [string appendFormat:@"0%@", hexStr];
            }
        }
    }];
    
    return string;
}

//将十六进制字符串转换为二进制数据
+ (NSData *)dataFromHexString:(NSString *)hexString {
    // 去除字符串中的空格和换行符
    NSString *cleanedString = [hexString stringByReplacingOccurrencesOfString:@" " withString:@""];
    cleanedString = [cleanedString stringByReplacingOccurrencesOfString:@"\n" withString:@""];
    
    // 检查字符串长度是否为偶数
    if (cleanedString.length % 2 != 0) {
        // 如果长度为奇数，可以根据需要选择在字符串前面添加或去除一个字符
        // 例如，你可以选择在前面添加一个零，或者去除最后一个字符
        // cleanedString = [@"0" stringByAppendingString:cleanedString];
        // 或者
        // cleanedString = [cleanedString substringToIndex:cleanedString.length - 1];
    }
    
    // 使用一个循环将每两个字符转换为一个字节
    NSMutableData *data = [NSMutableData data];
    for (NSInteger i = 0; i < cleanedString.length; i += 2) {
        NSString *byteString = [cleanedString substringWithRange:NSMakeRange(i, 2)];
        NSScanner *scanner = [NSScanner scannerWithString:byteString];
        unsigned int byteValue;
        [scanner scanHexInt:&byteValue];
        uint8_t byte = (uint8_t)byteValue;
        [data appendBytes:&byte length:1];
    }
    
    return data;
}
@end