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