cpprestsdk實作通過阿裡雲移動推送

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srand(time(0));//初始化的時候使用

static char dec2hex(short int c)
{
    if (0 <= c && c <= 9)
    {
        return c + '0';
    }
    else if (10 <= c && c <= 15)
    {
        return c + 'A' - 10;
    }
    else
    {
        return -1;
    }
}

static char* change(char* str)
{
//    assert(str != NULL);//斷言，判斷str知否指向空
    char* pstr = str;//由于str要進行變化，以後還要用到，是以先把他用pstr存起來
    int space_count = 0;//計數器
    char* end = NULL;
    char* end_new = NULL;
    while(*str++!='\0')
    {
        if(*str == '+' || *str == '*')
            space_count++;//進行空格計數
        else if(*str == '~')
            space_count--;
    }
    end = str;
    end_new = end + 2*space_count;
    str = pstr;
    while(end != end_new)//當新結束指針和原結束指針不相等時
    {
        if(*end == '+')
        {
            *end_new-- = '0';
            *end_new-- = '2';
            *end_new-- = '%';
            end--;
        }
        else if(*end == '*')
        {
            *end_new-- = 'A';
            *end_new-- = '2';
            *end_new-- = '%';
            end--;
        }
        else if(*end == 'E' && *end - 1 == '7' && *end - 2 == '%')
        {
            *end_new-- = '~';
            end -= 3;
        }
        else//否則進行指派
        {
            *end_new-- = *end--;
        }
    }
    return pstr;//将變化後的字元串的首位址傳回
}

static void urlencode_v30(char url[])
{
    int i = 0;
    int len = strlen(url);
    int res_len = 0;
    char res[1024*5];
    for (i = 0; i < len; ++i)
    {
        char c = url[i];
        if (    ('0' <= c && c <= '9') ||
                ('a' <= c && c <= 'z') ||
                ('A' <= c && c <= 'Z') ||
                c == '/' || c == '.' || c == '-' || c == '_')
        {
            res[res_len++] = c;
        }
        else
        {
            int j = (short int)c;
            if (j < 0)
                j += 256;
            int i1, i0;
            i1 = j / 16;
            i0 = j - i1 * 16;
            res[res_len++] = '%';
            res[res_len++] = dec2hex(i1);
            res[res_len++] = dec2hex(i0);
        }
    }
    res[res_len] = '\0';
//    printf("%s,Line=%d,res=%s,res_len=%d\n", __FUNCTION__,__LINE__,res,res_len);
    strcpy(url, res);
}

static char* SpecialUrlEncode(const char *pSrc)
{
    char pTempSrc[1024*5];
    memset(pTempSrc,0,sizeof(pTempSrc));
    strcpy(pTempSrc,pSrc);

    printf("%s,Line=%d,pTempSrc=%s\n", __FUNCTION__,__LINE__,pTempSrc);
    urlencode_v30(pTempSrc);

    char *pChange = change(pTempSrc);
    return pChange;
}

int HtRestSDKDll_ALIPush(const char *pAccessKey,const char *pAccessKeySecret,const char *pAppKey,const char *pTarget,const char *pTitle,const char *pBody)
{
    m_nReqID = rand();
    struct timespec time;
    clock_gettime(CLOCK_REALTIME, &time);  //擷取相對于1970到現在的秒數
    struct tm nowTime;
    gmtime_r(&time.tv_sec, &nowTime);


    char pTime[64],pUrlEncode_Time[256];
    char pUrlEncode_Title[1024];
    char pUrlEncode_Body[1024];
    memset(pTime,0,sizeof(pTime));
    memset(pUrlEncode_Time,0,sizeof(pUrlEncode_Time));
    memset(pUrlEncode_Title,0,sizeof(pUrlEncode_Title));
    memset(pUrlEncode_Body,0,sizeof(pUrlEncode_Body));
    sprintf(pTime,"%04d-%02d-%02dT%02d:%02d:%02dZ",nowTime.tm_year + 1900,nowTime.tm_mon+1,nowTime.tm_mday,nowTime.tm_hour,nowTime.tm_min,nowTime.tm_sec);

    strcpy(pUrlEncode_Time,pTime);
    strcpy(pUrlEncode_Title,pTitle);
    strcpy(pUrlEncode_Body,pBody);
    urlencode_v30(pUrlEncode_Time);
    urlencode_v30(pUrlEncode_Title);
    urlencode_v30(pUrlEncode_Body);
    printf("%s,Line=%d,pUrlEncode_Time=%s,pUrlEncode_Title=%s,pUrlEncode_Body=%s\n", __FUNCTION__,__LINE__,pUrlEncode_Time,pUrlEncode_Title,pUrlEncode_Body);
    char pSign[1024*5];
    sprintf(pSign,"AccessKeyId=%s&Action=Push&AppKey=%s&Body=%s&DeviceType=ALL&Format=XML&PushType=NOTICE&RegionId=cn-hangzhou&SignatureMethod=HMAC-SHA1&SignatureNonce=%d&SignatureVersion=1.0&Target=TAG&TargetValue=%s&Timestamp=%s&Title=%s&Version=2016-08-01",
        pAccessKey,pAppKey,pUrlEncode_Body,m_nReqID,pTarget,
        pUrlEncode_Time,
        pUrlEncode_Title);

    sprintf(pSign,"GET&%s&%s","%2F",SpecialUrlEncode(pSign));

    unsigned char digest[64] = {'\0'};
    unsigned int digest_len = 0;

    char pTempSecret[128];
    memset(pTempSecret,0,sizeof(pTempSecret));
    sprintf(pTempSecret,"%s&",pAccessKeySecret);
    HMAC(EVP_sha1(), pTempSecret, strlen(pTempSecret), (unsigned char*)pSign, strlen(pSign), digest, &digest_len);

    std::string pBase64Rlt = base64_encode(digest, digest_len);

    sprintf(pSign,"http://cloudpush.aliyuncs.com/?Signature=%s&AccessKeyId=%s&Action=Push&AppKey=%s&Body=%s&DeviceType=ALL&Format=XML&PushType=NOTICE&RegionId=cn-hangzhou&SignatureMethod=HMAC-SHA1&SignatureNonce=%d&SignatureVersion=1.0&Target=TAG&TargetValue=%s&Timestamp=%s&Title=%s&Version=2016-08-01",
    SpecialUrlEncode(pBase64Rlt.c_str()),pAccessKey,pAppKey,pUrlEncode_Body,m_nReqID,pTarget,
        pUrlEncode_Time,
        pUrlEncode_Title);
    printf("%s,Line=%d,Sign=%s\n", __FUNCTION__,__LINE__,pSign);

    http_client_config config;
    config.set_timeout(utility::seconds(90)); //設定為90秒逾時
    http_client client(pSign, config);

    http_request request(methods::GET);
    request.headers().add(U("Content-Type"), U("application/json"));
    client.request(request).get();


    return 0;
}