最近因为公司项目需要接入短信验证码功能，在网上转了几圈，最终选定了2家公司；一家是腾讯云的短信业务，这个是收费的。另一个是Mob的短信业务，这个是免费的。
本篇文章主要是介绍腾讯云的接入，后面一章节会介绍Mob的接入方法。
腾讯云的接入文档参考地址：
https://cloud.tencent.com/document/product/382/5976
参数问题和错误码等直接看文档，下面我们说说流程。
首先是需要去腾讯云注册账号，然后做个人或者公司的实名认证。通过之后再注册应用，应用也是需要通过认证来申请短信模板的；
注册地址如下：https://console.cloud.tencent.com/sms/smslist
创建应用之后如下：https://console.cloud.tencent.com/sms/smsinfo/1400248333/0
这里是应用的管理后台，可以查看很多信息。管理短信模板等。一样的是ID和key：
验证流程是，手机端生成验证码，并本地保存，好后面做验证；然后把手机号和验证码通过Http的json格式的数据发生给TX，TX校验通过之后，会把验证码发给对应手机号。TX本身是不生成验证码和做校验的。验证码生成和校验都是需要我们自己做的。手机端收到验证码之后，和之前的缓存做对比，本地判断是否验证成功。TX的作用就是一个短信息的发送。我们的测试环境是cocos2dx3.16，用的是cocos的http和json解析。
下面我们看看详细的接入代码：
引入头文件：
#include "network/HttpClient.h"
#include "json/rapidjson.h"
#include "json/document.h"
#include "json/stringbuffer.h"
#include "json/writer.h"
//------------函数声明------------
//生成本地验证码
int CreateCode();
//发送TX短信验证码
void SendSMSCode();
//拼接TX需要的JSON格式的数据，并做哈希加密
std::string getJsonData();
//TX回复的消息处理
void onRequestCompleted(cocos2d::network::HttpClient* sender, cocos2d::network::HttpResponse* response);
//哈希函数
char* StrSHA256(const char* str, long long length, char* sha256);
int m_smsCode;
std::string m_phoneNum;
//------------函数实现------------
//生成本地验证码
int LoginScene::CreateCode()
{
srand(time(NULL));
int _num = 100000 + rand() % 999999;
log("-----SMS Code:%d", _num);
return _num;
}
//拼接json数据
std::string LoginScene::getJsonData()
{
auto _now = system_clock::to_time_t(system_clock::now());
int _time = (int)_now;//UNIX 时间戳
string strMobile = m_phoneNum; //tel 的 mobile 字段的内容
string strAppKey = "3687c053222838ef80a00b2e4cc6ba"; //sdkappid 对应的 appkey，需要业务方高度保密
string strRand = "7326249334"; //URL 中的 random 字段的值
string strTime = std::to_string(_time); //UNIX 时间戳
string sig = ""; //string sig = sha256(appkey=3687c053222838ef80a00b2e4cc6ba85&random=7226249334&time=1457336869&mobile=18012345678)
char buf[93] = "";
char sha256[65];
sprintf(buf, "appkey=%s&random=%s&time=%s&mobile=%s", strAppKey.c_str(), strRand.c_str(), strTime.c_str(), m_phoneNum.c_str());
StrSHA256(buf, sizeof(buf) - 1, sha256);
sig = sha256;
rapidjson::Document document;
document.SetObject();
rapidjson::Document::AllocatorType& allocator = document.GetAllocator();
document.AddMember("ext", "llh", allocator); //"ext": "",
document.AddMember("extend", "", allocator); //"extend": "",
rapidjson::Value params(rapidjson::kArrayType); //"params": ["Code","1234","4"],
params.PushBack("Code", allocator);
params.PushBack("123456", allocator);
params.PushBack("1", allocator);
document.AddMember("params", params, allocator);
//document.AddMember("params", rapidjson::Value(params.SetArray(), allocator), allocator);
//document.AddMember("sig", sig, allocator); //"sig":"sha256()",
document.AddMember("sig", rapidjson::Value(sig.c_str(), allocator), allocator);
document.AddMember("sign", "TencentYun", allocator);//"sign": "TencentYun",
rapidjson::Value objTel(rapidjson::kObjectType);//"tel": {"mobile": "13788888888","nationcode": "86"},
//objTel.AddMember("mobile", strMobile, allocator);
objTel.AddMember("mobile", rapidjson::Value(strMobile.c_str(), allocator), allocator);
objTel.AddMember("nationcode", "86", allocator);
document.AddMember("tel", objTel, allocator);
//document.AddMember("time", strTime, allocator); //"time": 1457336869,
document.AddMember("time", rapidjson::Value(strTime.c_str(), allocator), allocator);
document.AddMember("tpl_id", 19, allocator); //"tpl_id": 19
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
document.Accept(writer);
std::string strJson = buffer.GetString();
log("-----生成的Json:\n%s", strJson.c_str());
return buffer.GetString();
}
//发送TX短信验证码
void LoginScene::SendSMSCode()
{
m_phoneNum = "18012345678";
m_smsCode = CreateCode();
HttpRequest* request = new (std::nothrow) HttpRequest();
//
request->setUrl("https://yun.tim.qq.com/v5/tlssmssvr/sendsms?sdkappid=1400248333&random=7326249334");
request->setRequestType(HttpRequest::Type::POST);
// 设置请求完成之后的响应方法
request->setResponseCallback(CC_CALLBACK_2(LoginScene::onRequestCompleted, this));
//
auto postData = getJsonData();
std::vector<std::string> headers;
headers.push_back("Content-Type: application/json; charset=utf-8");
// 设置请求头，如果数据为键值对则不需要设置
request->setHeaders(headers);
// 传入发送的数据及数据chng
request->setRequestData(postData.c_str(), postData.size());
request->setTag("POST GetSMSCode");
HttpClient::getInstance()->send(request);
}
//响应处理
void LoginScene::onRequestCompleted(cocos2d::network::HttpClient* sender, cocos2d::network::HttpResponse* response)
{
if (!response){
return;
}
log("%s completed", response->getHttpRequest()->getTag());
int statusCode = response->getResponseCode();
log("response code: %d", statusCode);
if (!response->isSucceed()){
log("response failed");
log("error buffer: %s", response->getErrorBuffer());
return;
}
std::vector<char>* responseData = response->getResponseData();
std::string responseStr = std::string(responseData->begin(), responseData->end());
log("response data:%s", responseStr.c_str());
rapidjson::Document m_document;
m_document.Parse<0>(responseStr.c_str());
CCASSERT(!m_document.HasParseError(), "Parsing to document failed");
if (m_document.HasParseError())
{
return;
}
if (m_document.IsObject())
{
//错误码，0表示成功（计费依据），非0表示失败
if (m_document.HasMember("result") && m_document["result"].IsNumber()){
const rapidjson::Value& val_data = m_document["result"];
rapidjson::Type _ty = val_data.GetType();
log("result: %d \n", val_data.GetInt());
}
//错误消息，result 非0时的具体错误信息
if (m_document.HasMember("errmsg") && m_document["errmsg"].IsString()){
const rapidjson::Value& val_data = m_document["errmsg"];
log("err msg: %s \n", val_data.GetString());
}
if (m_document.HasMember("ext") && m_document["ext"].IsString()){
const rapidjson::Value& val_data = m_document["ext"];
log("ext: %s \n", val_data.GetString());
}
//短信计费的条数
if (m_document.HasMember("fee") && m_document["fee"].IsNumber()){
const rapidjson::Value& val_data = m_document["fee"];
log("fee: %d \n", val_data.GetInt());
}
}
}
//---------------------------------------------------------------------------------------------------------
#define SHA256_ROTL(a,b) (((a>>(32-b))&(0x7fffffff>>(31-b)))|(a<<b))
#define SHA256_SR(a,b) ((a>>b)&(0x7fffffff>>(b-1)))
#define SHA256_Ch(x,y,z) ((x&y)^((~x)&z))
#define SHA256_Maj(x,y,z) ((x&y)^(x&z)^(y&z))
#define SHA256_E0(x) (SHA256_ROTL(x,30)^SHA256_ROTL(x,19)^SHA256_ROTL(x,10))
#define SHA256_E1(x) (SHA256_ROTL(x,26)^SHA256_ROTL(x,21)^SHA256_ROTL(x,7))
#define SHA256_O0(x) (SHA256_ROTL(x,25)^SHA256_ROTL(x,14)^SHA256_SR(x,3))
#define SHA256_O1(x) (SHA256_ROTL(x,15)^SHA256_ROTL(x,13)^SHA256_SR(x,10))
//哈希256加密
char* LoginScene::StrSHA256(const char* str, long long length, char* sha256){
/*
计算字符串SHA-256
参数说明：
str 字符串指针
length 字符串长度
sha256 用于保存SHA-256的字符串指针
返回值为参数sha256
*/
char *pp, *ppend;
long l, i, W[64], T1, T2, A, B, C, D, E, F, G, H, H0, H1, H2, H3, H4, H5, H6, H7;
H0 = 0x6a09e667, H1 = 0xbb67ae85, H2 = 0x3c6ef372, H3 = 0xa54ff53a;
H4 = 0x510e527f, H5 = 0x9b05688c, H6 = 0x1f83d9ab, H7 = 0x5be0cd19;
long K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
};
l = length + ((length % 64 >= 56) ? (128 - length % 64) : (64 - length % 64));
if (!(pp = (char*)malloc((unsigned long)l))) return 0;
for (i = 0; i < length; pp[i + 3 - 2 * (i % 4)] = str[i], i++);
for (pp[i + 3 - 2 * (i % 4)] = 128, i++; i < l; pp[i + 3 - 2 * (i % 4)] = 0, i++);
*((long*)(pp + l - 4)) = length << 3;
*((long*)(pp + l - 8)) = length >> 29;
for (ppend = pp + l; pp < ppend; pp += 64){
for (i = 0; i < 16; W[i] = ((long*)pp)[i], i++);
for (i = 16; i < 64; W[i] = (SHA256_O1(W[i - 2]) + W[i - 7] + SHA256_O0(W[i - 15]) + W[i - 16]), i++);
A = H0, B = H1, C = H2, D = H3, E = H4, F = H5, G = H6, H = H7;
for (i = 0; i < 64; i++){
T1 = H + SHA256_E1(E) + SHA256_Ch(E, F, G) + K[i] + W[i];
T2 = SHA256_E0(A) + SHA256_Maj(A, B, C);
H = G, G = F, F = E, E = D + T1, D = C, C = B, B = A, A = T1 + T2;
}
H0 += A, H1 += B, H2 += C, H3 += D, H4 += E, H5 += F, H6 += G, H7 += H;
}
free(pp - l);
sprintf(sha256, "%08x%08x%08x%08x%08x%08x%08x%08x", H0, H1, H2, H3, H4, H5, H6, H7);
return sha256;
}
//---------------------------------------------------------------------------------------------------------
VS2013加密输出信息：
经过第三方网站加密输出对比：http://www.atool9.com/hash.php
我们加密出来的哈希值和三方网站的是相同的。剩下的就是本地保存的验证码，和手机收到的码做比较，判断校验是否通过。