这个可以翻译到tcp服务器和客户端,我比较websocekt顺手
先安装protobuf和libhv
vcpkg install libhv[ssl]:x86-windows-static-md libhv[ssl]:x86-windows-static
安装protubuf
vcpkg install protobuf:x86-windows-static-md protobuf:x86-windows-static
protobuf文件定义,做了2个RPC的请求,遍历服务器文件和获取服务器某个文件的校验值
syntax = "proto3";
enum TYPE_protobuf_CodeType{//内容类型 枚举不能用下划线
CodeType_getver = 0;
CodeType_rpc = 1;
}
message _protobuf_CodeRequest{//请求内容
TYPE_protobuf_CodeType cmd = 1;//
repeated bytes params = 2;
bytes methed = 3;//方法名 RPC才有效
uint64 Rpcindex=4;//RPC编号可选
}
message _protobuf_CodeResult{//返回结果
repeated bytes result = 1;
uint64 Rpcindex=2;//RPC编号可选
repeated bytes messageFromServer = 3;//服务器返回的消息
}
message _protobuf_RPC_GetFilesByDir{
bytes Dir=2;//枚举的目录
bytes ExtensionName=3;//扩展名
bool deep=4;//是否深度遍历
}
.h文件定义代码:可以不用,遇到没定义的从这里翻下
namespace GServer{
inline bool isHtmlFromDisk = false;
inline int port_HuaWeiHttpServer = 9001;
//版本
inline string gVersion = "1.0.0";
extern webview::webview* pWebview;
extern void initEdge();
extern void initHttpServer();
inline bool isRun_WebsocketServer = false;
extern void initWebsocketServer();
extern void initGameWebsocketServer();
inline std::mutex mutex_fileRpc;//文件rpc锁,防止磁盘扛不住,httpFilecache也用这个锁
struct FilecacheData{
std::string md5;
std::string data;
};
extern std::unordered_map<std::string,FilecacheData> httpFilecache;
extern void clearFileCache();
inline std::mutex mutex_edgeWs;//浏览器WS锁
inline std::vector<WebSocketChannelPtr> clientWsClientSocket_edge;//因爲可能有多個瀏覽器連接,所以用vector
inline std::mutex mutex_clinetWs;//客户端WS锁
inline std::map<int,WebSocketChannelPtr> clinetWsPtrMap;//因爲可能有多個瀏覽器連接,所以用vector
}
cpp服务端的代码 ,一些变量没用到,我是贴的
namespace GServer{
hv::WebSocketService _wsGameServer;
websocket_server_t _wsGameServer_t;
constexpr DWORD port_GamewebSocket = 55552;
static _protobuf_CodeResult doWebSocketRpc(_protobuf_CodeRequest&,const WebSocketChannelPtr& channel);
//Rpc分类
static void doGetDir(_protobuf_CodeRequest&,_protobuf_CodeResult& res);
static void doGetHash(_protobuf_CodeRequest&,_protobuf_CodeResult& res);
}
初始化服务端websocket代码
void GServer::initGameWebsocketServer(){
hlog_disable();
_wsGameServer.onopen = [] (const WebSocketChannelPtr& channel,const HttpRequestPtr& req){
printf("onopen: GET %s id:%d\n",req->Path().c_str(),channel->id());
};
_wsGameServer.onclose = [] (const WebSocketChannelPtr& channel){
printf("onclose:id:%d\n",channel->id());
std::lock_guard<std::mutex> lok(GServer::mutex_clinetWs);
for(auto it = clinetWsPtrMap.begin(); it != clinetWsPtrMap.end(); ++it){
if(it->second->id() == channel->id()){
GServer::removeClient(it->first);
sendClientChanged();
clinetWsPtrMap.erase(it);
break;
}
}
};
_wsGameServer.onmessage = [] (const WebSocketChannelPtr& channel,std::string msg){
_protobuf_CodeRequest req;
req.ParseFromString(msg);
safePrintfLine("onmessage:{}",req.DebugString());
if (req.rpcindex()>0) {
_protobuf_CodeResult res = doWebSocketRpc(req,channel);
channel->send(res.SerializeAsString(),ws_opcode::WS_OPCODE_BINARY);
return;
}
else{
MySdk::ErrorOut("未定义的行为:{}",req.methed());
}
};
_wsGameServer_t.port = port_GamewebSocket;
_wsGameServer_t.ws = &_wsGameServer;
websocket_server_run(&_wsGameServer_t,0);
}
实现rpc函数判断
_protobuf_CodeResult GServer::doWebSocketRpc(_protobuf_CodeRequest&req,const WebSocketChannelPtr& channel){
_protobuf_CodeResult res;
res.set_rpcindex(req.rpcindex());
safePrintfLine("doWebSocketRpc 方法:{}",req.methed());
if (req.methed()=="GetDir"){
doGetDir(req,res);
}
else if(req.methed() == "GetHash"){
doGetHash(req,res);
}
else{
MySdk::ErrorOut("未定义的行为Rpc methed:{}",req.methed());
}
//res.add_result().assign()
return res;
}
实现具体的Rpc功能
void GServer::doGetDir(_protobuf_CodeRequest& req,_protobuf_CodeResult&res){
std::lock_guard<std::mutex> lock(mutex_fileRpc); // 使用lock_guard自动管理锁的生命周期
if(req.params_size() != 1){
MySdk::ErrorOut("GetDir 参数未写");
}
std::string dirCode = req.params(0);
_protobuf_RPC_GetFilesByDir param;
param.ParseFromString(dirCode);
safePrintfLine("GetDir: 目录{} 扩展名:{}",param.dir(),param.extensionname());
auto arr = param.deep()==true? PathApi::getDirFilesEx(param.dir(),param.extensionname()):PathApi::getDirFiles(param.dir(),param.extensionname());
for(auto& v : arr){
res.add_result()->assign(v);
}
}
void GServer::doGetHash(_protobuf_CodeRequest& req,_protobuf_CodeResult& res){
std::lock_guard<std::mutex> lock(mutex_fileRpc); // 使用lock_guard自动管理锁的生命周期
if(req.params_size() != 2){
MySdk::ErrorOut("doGetHash 参数未写");
}
std::string dirCode = req.params(0);
std::string hashType = req.params(1);
if (!PathApi::Exist(dirCode)) {
res.add_result()->assign("文件不存在");
MySdk::ErrorOut("获取哈希值失败,文件不存在:{}",dirCode);
}else{
std::string hashret = {};
if(hashType == "tiger"){
auto str = MyFileApi::readBigFile(dirCode);
hashret = SDK_Crppto::TigerHash(str);
}
else if(hashType == "md5"){
if (GServer::httpFilecache.find(dirCode)!= GServer::httpFilecache.end()) {
hashret = GServer::httpFilecache[dirCode].md5;
}
else{
auto str = MyFileApi::readBigFile(dirCode);
hashret = SDK_Crppto::MD5Hash(str);
//GServer::httpFilecache[dirCode] = { .md5=hashret,.data=str };
}
}
else if(hashType == "sha256"){
auto str = MyFileApi::readBigFile(dirCode);
hashret = SDK_Crppto::sha256Hash(str);
}else{
MySdk::ErrorOut("未知的哈希类型:{}",hashType);
}
res.add_result()->assign(hashret);
}
}
客户端代码:
头文件 删减下很多垃圾代码:
#pragma once
namespace gameSocket{
class cmdhttp{
public:
static inline std::string cmd_getProtobufCmd = "/getProtobufCmd";
};
typedef std::function<void(std::string_view) > onOfflineCallback;//掉线回调
extern void setOnOfflineCallback(onOfflineCallback callback);
extern inline void CheckGameVersion();
/**
* @brief 安全的post,如果失败会调用 onRestart
* @param ph 路径,以本地路径显示,会自动处理 比如"./a.txt"
*/
extern std::string safeDownLoad(std::string ph);
extern hv::WebSocketClient wsClient;
extern void initializationWebSocket();
//接收websocket消息,对rpc的消息进行分流
extern void onRpcMessage(_protobuf_CodeResult& res);
//调用远程过程的第二层封装,具体参数实现的函数
/**
* @brief 获取目录下的文件
* @param dir 目录
* @param extension 扩展名,如.dll,.exe,*则代表所有文件
* @param deep 是否深度遍历,也就是是否遍历子目录
* @return vector<std::string> 文件名
*
*/
extern vector<std::string> call_GetDir(std::string_view dir,std::string_view extension,bool deep);
/**
* @brief 获取文件的hash值
* @param file 文件路径
* @param hashType hash类型,支持3个,注意小写:md5,tiger,sha256
*/
extern std::string call_GetHash(std::string_view file,std::string_view hashType);
extern void clearServerFileCache();
}
cpp
namespace gameSocket{
typedef std::shared_ptr<_protobuf_CodeRequest> RequestPtr;
typedef std::shared_ptr<_protobuf_CodeResult> ResponsePtr;
std::mutex g_ctxs_mutex;
//一个类,保存上下文
class ProtoRpcContext{
public:
RequestPtr req;
ResponsePtr res;
private:
std::mutex _mutex;
std::condition_variable _cond;
public:
void notify(){
_cond.notify_one();
}
bool wait(int timeout_ms){
std::unique_lock<std::mutex> locker(_mutex);
return _cond.wait_for(locker,std::chrono::milliseconds(timeout_ms)) != std::cv_status::timeout;
}
};
typedef std::shared_ptr<ProtoRpcContext> ProtoRpcContextPtr;
//当前正在远程过程调用的上下文
static std::map<eg::uint64,ProtoRpcContextPtr> g_ctxs;
/**
* @brief 调用远程过程的第一层封装,超时返回空指针
*/
static ResponsePtr callRpc(const RequestPtr& req,int timeoutMs = 10 * 1000);
}
gameSocket::initGameWebsocketServer();//启动
cpp中实现rpc具体功能:
void gameSocket::onRpcMessage(_protobuf_CodeResult& res){
std::lock_guard<std::mutex> lock(g_ctxs_mutex); // 使用lock_guard自动管理锁的生命周期
auto it = g_ctxs.find(res.rpcindex());
if(it != g_ctxs.end()){
it->second->res = std::make_shared<_protobuf_CodeResult>(res);
it->second->notify();
return;
}
}
gameSocket::ResponsePtr gameSocket::callRpc(const RequestPtr& req,int timeoutMs){
static std::atomic<uint64_t> s_id = ATOMIC_VAR_INIT(1);
req->set_rpcindex(++s_id);
auto ctx = std::make_shared<gameSocket::ProtoRpcContext>();
ctx->req = req;
{
std::lock_guard<std::mutex> lock(g_ctxs_mutex);
g_ctxs[req->rpcindex()] = ctx;
}
std::string messageReq = req->SerializeAsString();
safePrintfLine("callRpc debugString:{}",req->DebugString());
gameSocket::wsClient.send(messageReq);
if (!ctx->wait(timeoutMs)) {
//AfxMessageBox("大概超时了");
}
//可能超时
ResponsePtr res = ctx->res;
std::lock_guard<std::mutex> lock(g_ctxs_mutex);
eg::uint64 rpcindex = req->rpcindex();
gameSocket::g_ctxs.erase(rpcindex);
return res;
}
vector<std::string> gameSocket::call_GetDir(std::string_view dir,std::string_view extension,bool deep){
try{
_protobuf_CodeRequest req;
req.set_cmd(TYPE_protobuf_CodeType::CodeType_rpc);
req.set_methed("GetDir");
_protobuf_RPC_GetFilesByDir params;
params.set_dir(dir.data());
params.set_extensionname(extension.data());
params.set_deep(deep);
//参数1,直接传入_protobuf_RPC_GetFilesByDir的序列化文本得了
req.add_params()->assign(params.SerializeAsString());
RequestPtr reqPtr = std::make_shared<_protobuf_CodeRequest>(req);
auto s = callRpc(reqPtr,10*1000);
if(!s){
return {};//超时也要返回空数组 不返回的话编译器不报错但是会崩溃
}
std::vector<std::string> result;
for(int i = 0; i < s->result_size(); i++){
result.emplace_back(s->result(i));
}
return result;
} catch(std::exception& e){
MySdk::ErrorOutExit("call_GetDir Error:{}",e.what());
}
return {};//超时也要返回空数组 不返回的话编译器不报错但是会崩溃
}
std::string gameSocket::call_GetHash(std::string_view file,std::string_view hashType){
try{
if (hashType!="md5"&&hashType!="tiger"&&hashType!="sha256"){
MySdk::ErrorOutExit("call_GetHash 获取服务器哈希值 方法错误:{}",hashType);
}
_protobuf_CodeRequest req;
req.set_cmd(TYPE_protobuf_CodeType::CodeType_rpc);
req.set_methed("GetHash");
//参数1,直接传入_protobuf_RPC_GetFilesByDir的序列化文本得了
req.add_params()->assign(file);
req.add_params()->assign(hashType);
RequestPtr reqPtr = std::make_shared<_protobuf_CodeRequest>(req);
auto s = callRpc(reqPtr,10 * 1000);
if(!s){
return {};//超时也要返回空数组 不返回的话编译器不报错但是会崩溃
}
if (s->result_size()==0) {
return {};//超时也要返回空数组 不返回的话编译器不报错但是会崩溃
}
return s->result(0);
} catch(std::exception& e){
MySdk::ErrorOutExit("GetHash Error:{}",e.what());
}
return {};//超时也要返回空数组 不返回的话编译器不报错但是会崩溃
}
启动客户端websocket
void gameSocket::initializationWebSocket(){
std::call_once(gameSocket::flagWebSOcket,[] (){
try{
auto [ip,_] = GameConfigs::getHttpServerIp();
std::string s_websocket_url = "ws://" + ip + ":" + std::to_string(GameConfigs::port_webSocket);
gameSocket::wsClient.onopen = [&] (){
isWsLinked = true;
printf("onopen\n");
};
gameSocket::wsClient.onclose = [] (){
printf("onclose\n");//设置断线回调,可有可无
if(isWsLinked&&onOfflineCallbackFunc){
(*onOfflineCallbackFunc)("onclose");
}
};
gameSocket::wsClient.onmessage = [] (const std::string& msg){
//printf("客户端 onmessage: %s\n",msg.c_str());
Try_Begin();
_protobuf_CodeResult res;
res.ParseFromString(msg);
if(res.rpcindex() > 0){
gameSocket::onRpcMessage(res);
return;
}
else if(res.messagefromserver().size()<= 0){
MySdk::ErrorOut("服务器消息尺寸为0 消息是:{}",msg);
}
//其他非rpc的回应
Try_End();
};
gameSocket::wsClient.onConnection = [] (const hv::SocketChannelPtr&){
printf("onConnection\n");
};
//设置断线自动重连和心跳包
reconn_setting_t reconn;
reconn.min_delay = 1000;
reconn.max_delay = 2000;
reconn.delay_policy = 2;
gameSocket::wsClient.setReconnect(&reconn);
gameSocket::wsClient.setPingInterval(1000 * 10);
gameSocket::wsClient.open(s_websocket_url.c_str());
gameSocket::wsClient.setConnectTimeout(10*1000);
while(true){
if(isWsLinked){
break;
}
else{
printf("!正在连接服务器.... \n");
}
Sleep(1000);
}
std::string ret = call_addClient();
if (ret!="ok"){
MySdk::ErrorOutExit("连接服务器未知错误:{}",ret);
}
addClient("号刚启动,没上线");
} catch(std::exception& e){
MySdk::ErrorOutExit("initializationWebSocket Error:{}",e.what());
}
});
setClientLog("ws服务器初始化完成");
}
gameSocket::initializationWebSocket();启动
附上编译protobuf的py脚本,调用cmd还是麻烦
import subprocess,shutil
commad = "protoc --cpp_out=. ./HttpCode.proto"
#commadJs = "protoc --js_out=. ./HttpCode.proto"
result = subprocess.call(commad, shell=True)
print("生成完成")
source_files = ["HttpCode.pb.cc", "HttpCode.pb.h"]
# 拷贝到目标目录
target_directoryClient = "Q:\\项目源码\\MyFrameWork\\xxxClient\\" # 客户端目录
target_directoryServer = "Q:\\项目源码\\MyFrameWork\\xxxServer\\" # 服务端目录
print("开始拷贝")
# 遍历要拷贝的文件执行操作
for file in source_files:
shutil.copy(file, target_directoryClient)
shutil.copy(file, target_directoryServer)
print("protobuf文件生成完成,已拷贝到目标目录")
#result2 = subprocess.call(commadJs, shell=True)
其他有用到的函数参考
#define FPrintf fmt::print
#define FFormat fmt::format
template <typename... ARG>
inline std::string safeFmt(const char* fmt,ARG... args){
try{
string re = FFormat(fmt,args...);
return re;
} catch(fmt::v9::format_error& e){
std::string errorCode = FFormat("safeFmt format_error:{} Fmt Char*= \"{}\"",e.what(),fmt);
::MessageBox(NULL,errorCode.c_str(),"提示:",MB_OK | MB_ICONERROR | MB_SYSTEMMODAL);
}
return "null";
}
template <typename... ARG>
void ErrorOut(const char* fmt,ARG... args){
string s = safeFmt(fmt,args...);
::MessageBox(NULL,s.c_str(),"提示",
MB_OK | MB_ICONERROR | MB_SYSTEMMODAL);
}
template <typename... ARG>
void ErrorOutExit(const char* fmt,ARG... args){
ErrorOut(fmt,args...);
::ExitProcess(0); // exit会调用析构函数 ExitProcess是立即结束
}
#define Constu8(method) (const char*)u8##method
#define Try_Begin() try{
#define Try_End() } catch(const std::exception& e){SPDLOG_DEBUG("Error:{}",e.what());MySdk::ErrorOutExit("Error:\n\t函数:<{}><{}>\n\t文件:{}\n\t行:{}\n\t异常信息{}\n\t详情可看调试输出",__FUNCTION__,__func__,__FILE__,__LINE__, e.what());}
[招生]科锐逆向工程师培训(2024年11月15日实地,远程教学同时开班, 第51期)