drogon/drogon_ctl/create_controller.cc

309 lines
12 KiB
C++
Executable File

/**
*
* create_controller.cc
* An Tao
*
* Copyright 2018, An Tao. All rights reserved.
* https://github.com/an-tao/drogon
* Use of this source code is governed by a MIT license
* that can be found in the License file.
*
* Drogon
*
*/
#include "create_controller.h"
#include "cmd.h"
#include <iostream>
#include <fstream>
#include <regex>
using namespace drogon_ctl;
void create_controller::handleCommand(std::vector<std::string> &parameters)
{
//std::cout<<"create!"<<std::endl;
ControllerType type = Simple;
for (auto iter = parameters.begin(); iter != parameters.end(); iter++)
{
if ((*iter)[0] == '-')
{
if (*iter == "-s" || (*iter == "--simple"))
{
parameters.erase(iter);
break;
}
else if (*iter == "-a" || *iter == "-h" || *iter == "--http")
{
type = Http;
parameters.erase(iter);
break;
}
else if (*iter == "-w" || *iter == "--websocket")
{
type = WebSocket;
parameters.erase(iter);
break;
}
else
{
std::cout << ARGS_ERROR_STR << std::endl;
return;
}
}
}
createController(parameters, type);
}
void create_controller::newSimpleControllerHeaderFile(std::ofstream &file, const std::string &className)
{
file << "#pragma once\n";
file << "#include <drogon/HttpSimpleController.h>\n";
file << "using namespace drogon;\n";
std::string indent = "";
std::string class_name = className;
std::string namepace_path = "/";
auto pos = class_name.find("::");
while (pos != std::string::npos)
{
auto namespaceName = class_name.substr(0, pos);
class_name = class_name.substr(pos + 2);
file << indent << "namespace " << namespaceName << "\n";
namepace_path.append(namespaceName).append("/");
file << indent << "{\n";
indent.append(" ");
pos = class_name.find("::");
}
file << indent << "class " << class_name << ":public drogon::HttpSimpleController<" << class_name << ">\n";
file << indent << "{\n";
file << indent << "public:\n";
file << indent << " virtual void asyncHandleHttpRequest(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback) override;\n";
file << indent << " PATH_LIST_BEGIN\n";
file << indent << " //list path definitions here;\n";
file << indent << " //PATH_ADD(\"/path\",\"filter1\",\"filter2\",HttpMethod1,HttpMethod2...);\n";
file << indent << " PATH_LIST_END\n";
file << indent << "};\n";
if (indent == "")
return;
do
{
indent.resize(indent.length() - 4);
file << indent << "}\n";
} while (indent != "");
}
void create_controller::newSimpleControllerSourceFile(std::ofstream &file, const std::string &className, const std::string &filename)
{
file << "#include \"" << filename << ".h\"\n";
auto pos = className.rfind("::");
auto class_name = className;
if (pos != std::string::npos)
{
auto namespacename = className.substr(0, pos);
file << "using namespace " << namespacename << ";\n";
class_name = className.substr(pos + 2);
}
file << "void " << class_name << "::asyncHandleHttpRequest(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback)\n";
file << "{\n";
file << " //write your application logic here\n";
file << "}";
}
void create_controller::newWebsockControllerHeaderFile(std::ofstream &file, const std::string &className)
{
file << "#pragma once\n";
file << "#include <drogon/WebSocketController.h>\n";
file << "using namespace drogon;\n";
std::string indent = "";
std::string class_name = className;
std::string namepace_path = "/";
auto pos = class_name.find("::");
while (pos != std::string::npos)
{
auto namespaceName = class_name.substr(0, pos);
class_name = class_name.substr(pos + 2);
file << indent << "namespace " << namespaceName << "\n";
namepace_path.append(namespaceName).append("/");
file << indent << "{\n";
indent.append(" ");
pos = class_name.find("::");
}
file << indent << "class " << class_name << ":public drogon::WebSocketController<" << class_name << ">\n";
file << indent << "{\n";
file << indent << "public:\n";
file << indent << " virtual void handleNewMessage(const WebSocketConnectionPtr&,\n";
file << indent << " std::string &&,\n";
file << indent << " const WebSocketMessageType &) override;\n";
file << indent << " virtual void handleNewConnection(const HttpRequestPtr &,\n";
file << indent << " const WebSocketConnectionPtr&)override;\n";
file << indent << " virtual void handleConnectionClosed(const WebSocketConnectionPtr&)override;\n";
file << indent << " WS_PATH_LIST_BEGIN\n";
file << indent << " //list path definitions here;\n";
file << indent << " //WS_PATH_ADD(\"/path\",\"filter1\",\"filter2\",...);\n";
file << indent << " WS_PATH_LIST_END\n";
file << indent << "};\n";
if (indent == "")
return;
do
{
indent.resize(indent.length() - 4);
file << indent << "}\n";
} while (indent != "");
}
void create_controller::newWebsockControllerSourceFile(std::ofstream &file, const std::string &className, const std::string &filename)
{
file << "#include \"" << filename << ".h\"\n";
auto pos = className.rfind("::");
auto class_name = className;
if (pos != std::string::npos)
{
auto namespacename = className.substr(0, pos);
file << "using namespace " << namespacename << ";\n";
class_name = className.substr(pos + 2);
}
file << "void " << class_name << "::handleNewMessage(const WebSocketConnectionPtr& wsConnPtr, std::string &&message, const WebSocketMessageType &type)\n";
file << "{\n";
file << " //write your application logic here\n";
file << "}\n";
file << "void " << class_name << "::handleNewConnection(const HttpRequestPtr &req,const WebSocketConnectionPtr& wsConnPtr)\n";
file << "{\n";
file << " //write your application logic here\n";
file << "}\n";
file << "void " << class_name << "::handleConnectionClosed(const WebSocketConnectionPtr& wsConnPtr)\n";
file << "{\n";
file << " //write your application logic here\n";
file << "}\n";
}
void create_controller::newHttpControllerHeaderFile(std::ofstream &file, const std::string &className)
{
file << "#pragma once\n";
file << "#include <drogon/HttpController.h>\n";
file << "using namespace drogon;\n";
std::string indent = "";
std::string class_name = className;
std::string namepace_path = "/";
auto pos = class_name.find("::");
while (pos != std::string::npos)
{
auto namespaceName = class_name.substr(0, pos);
class_name = class_name.substr(pos + 2);
file << indent << "namespace " << namespaceName << "\n";
namepace_path.append(namespaceName).append("/");
file << indent << "{\n";
indent.append(" ");
pos = class_name.find("::");
}
file << indent << "class " << class_name << ":public drogon::HttpController<" << class_name << ">\n";
file << indent << "{\n";
file << indent << "public:\n";
indent.append(" ");
file << indent << "METHOD_LIST_BEGIN\n";
file << indent << "//use METHOD_ADD to add your custom processing function here;\n";
file << indent << "//METHOD_ADD(" << class_name << "::get,\"/get/{2}/{1}\",Get);"
"//path is "
<< namepace_path << class_name << "/get/{arg2}/{arg1}\n";
file << indent << "//METHOD_ADD(" << class_name << "::your_method_name,\"/{1}/{2}/list\",Get);"
"//path is "
<< namepace_path << class_name << "/{arg1}/{arg2}/list\n";
file << indent << "//ADD_METHOD_TO(" << class_name << "::your_method_name,\"/absolute/path/{1}/{2}/list\",Get);"
"//path is "
<< namepace_path << "/absolute/path/{arg1}/{arg2}/list\n";
file << indent << "\n";
file << indent << "METHOD_LIST_END\n";
file << indent << "//your declaration of processing function maybe like this:\n";
file << indent << "//void get(const HttpRequestPtr& req,"
"std::function<void (const HttpResponsePtr &)> &&callback,int p1,std::string p2);\n";
file << indent << "//void your_method_name(const HttpRequestPtr& req,"
"std::function<void (const HttpResponsePtr &)> &&callback,double p1,int p2) const;\n";
indent.resize(indent.length() - 4);
file << indent << "};\n";
if (indent == "")
return;
do
{
indent.resize(indent.length() - 4);
file << indent << "}\n";
} while (indent != "");
}
void create_controller::newHttpControllerSourceFile(std::ofstream &file, const std::string &className, const std::string &filename)
{
file << "#include \"" << filename << ".h\"\n";
auto pos = className.rfind("::");
auto class_name = className;
if (pos != std::string::npos)
{
auto namespacename = className.substr(0, pos);
file << "using namespace " << namespacename << ";\n";
class_name = className.substr(pos + 2);
}
file << "//add definition of your processing function here\n";
}
void create_controller::createController(std::vector<std::string> &httpClasses, ControllerType type)
{
for (auto iter = httpClasses.begin(); iter != httpClasses.end(); iter++)
{
if ((*iter)[0] == '-')
{
std::cout << ARGS_ERROR_STR << std::endl;
return;
}
}
for (auto const &className : httpClasses)
{
createController(className, type);
}
}
void create_controller::createController(const std::string &className, ControllerType type)
{
std::regex regex("::");
std::string ctlName = std::regex_replace(className, regex, std::string("_"));
std::string headFileName = ctlName + ".h";
std::string sourceFilename = ctlName + ".cc";
{
std::ifstream iHeadFile(headFileName.c_str(), std::ifstream::in);
std::ifstream iSourceFile(sourceFilename.c_str(), std::ifstream::in);
if (iHeadFile || iSourceFile)
{
std::cout << "The file you want to create already exists, overwrite it(y/n)?" << std::endl;
auto in = getchar();
(void)getchar(); //get the return key
if (in != 'Y' && in != 'y')
{
std::cout << "Abort!" << std::endl;
exit(0);
}
}
}
std::ofstream oHeadFile(headFileName.c_str(), std::ofstream::out);
std::ofstream oSourceFile(sourceFilename.c_str(), std::ofstream::out);
if (!oHeadFile || !oSourceFile)
{
perror("");
exit(-1);
}
if (type == Http)
{
std::cout << "create a http controller:" << className << std::endl;
newHttpControllerHeaderFile(oHeadFile, className);
newHttpControllerSourceFile(oSourceFile, className, ctlName);
}
else if (type == Simple)
{
std::cout << "create a http simple controller:" << className << std::endl;
newSimpleControllerHeaderFile(oHeadFile, className);
newSimpleControllerSourceFile(oSourceFile, className, ctlName);
}
else if (type == WebSocket)
{
std::cout << "create a websocket controller:" << className << std::endl;
newWebsockControllerHeaderFile(oHeadFile, className);
newWebsockControllerSourceFile(oSourceFile, className, ctlName);
}
}