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#include "umosapi.h"
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <bsoncxx/builder/stream/document.hpp>
#include <bsoncxx/json.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/stdx.hpp>
#include <mongocxx/uri.hpp>
#include <json-c/json.h>
#include <nlohmann/json.hpp>
#include "clara.hpp"
#include "shared.h"
#include "config.h"
std::map<std::string, std::string> config;
using namespace std;
using namespace Pistache;
using bsoncxx::builder::stream::close_array;
using bsoncxx::builder::stream::close_document;
using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::finalize;
using bsoncxx::builder::stream::open_array;
using bsoncxx::builder::stream::open_document;
using json = nlohmann::json;
using namespace clara;
namespace Generic {
void handleReady(const Rest::Request&, Http::ResponseWriter response) {
response.send(Http::Code::Ok, "1");
}
}
UmosapiService::UmosapiService(Address addr)
: httpEndpoint(std::make_shared<Http::Endpoint>(addr))
, desc("Unity Mongo Save API", "0.1")
{ }
void UmosapiService::init(size_t thr = 2) {
auto opts = Http::Endpoint::options()
.threads(thr);
httpEndpoint->init(opts);
createDescription();
}
void UmosapiService::start(std::string swaggerui) {
router.initFromDescription(desc);
Rest::Swagger swagger(desc);
swagger
.uiPath("/doc")
.uiDirectory(swaggerui)
.apiPath("/api")
.serializer(&Rest::Serializer::rapidJson)
.install(router);
httpEndpoint->setHandler(router.handler());
httpEndpoint->serve();
}
void UmosapiService::createDescription() {
desc
.info()
.license("Apache", "https://neodarz.net");
auto backendErrorResponse =
desc.response(Http::Code::Internal_Server_Error, "Backend is dead, it's the end of the world");
desc
.schemes(Rest::Scheme::Http)
.basePath("/v1")
.produces(MIME(Application, Json))
.consumes(MIME(Application, Json));
desc
.route(desc.get("/ready"))
.bind(&Generic::handleReady)
.response(Http::Code::Ok, "Api started")
.response(backendErrorResponse);
auto versionPath = desc.path("/v1");
versionPath
.route(desc.get("/:mcollection"))
.bind(&UmosapiService::UmosapiService::retrieveAll, this)
.produces(MIME(Application, Json))
.parameter<Rest::Type::String>("mcollection", "Name of the collection where the uobjects are located")
.response(Http::Code::Ok, "List of uobjects")
.response(backendErrorResponse);
versionPath
.route(desc.post("/:mcollection"))
.bind(&UmosapiService::UmosapiService::addUObject, this)
.produces(MIME(Application, Json))
.parameter<Rest::Type::String>("mcollection", "Name of the collection where the uobjects are located")
.response(Http::Code::Ok, "Uobject created")
.response(backendErrorResponse);
}
void UmosapiService::retrieveAll(const Rest::Request& request, Http::ResponseWriter response) {
mongocxx::client conn{mongocxx::uri{config["mongoURI"]}};
auto collection = conn[config["mongo_db"]][request.param(":mcollection").as<string>()];
auto cursor = collection.find({});
auto jsonObjects = json_object_new_array();
for (auto&& doc : cursor) {
json_object_array_add(jsonObjects, json_tokener_parse(bsoncxx::to_json(doc).c_str()));
}
response.send(Http::Code::Ok, json_object_to_json_string_ext(jsonObjects, JSON_C_TO_STRING_SPACED | JSON_C_TO_STRING_PRETTY), MIME(Application, Json));
json_object_put(jsonObjects);
}
void UmosapiService::addUObject(const Rest::Request& request, Http::ResponseWriter response) {
mongocxx::client conn{mongocxx::uri{config["mongoURI"]}};
auto collection = conn[config["mongo_db"]][request.param(":mcollection").as<string>()];
auto document = bsoncxx::from_json(request.body().c_str());
auto result = collection.insert_one(document.view());
std::string oid = result->inserted_id().get_oid().value.to_string();
auto jsonObject = json_object_new_object();
int stringlen = 0;
stringlen = strlen( request.body().c_str());
struct json_tokener *tok = json_tokener_new();
enum json_tokener_error jerr;
json_object *json_datas = NULL;
do {
json_datas = json_tokener_parse_ex(tok, request.body().c_str(), stringlen);
} while ((jerr = json_tokener_get_error(tok)) == json_tokener_continue);
if (jerr != json_tokener_success)
{
fprintf(stderr, "Error: %s\n", json_tokener_error_desc(jerr));
}
if (json_object_get_type(json_datas) == json_type_object) {
/* Create an object with the following template:
* {
* "_id": {
* "$oid": "5d484d371ec4865f767d8424"
* },
* "datas": {
* [...]
* }
* }
*/
auto json_id = json_object_new_object();
auto json_oid = json_object_new_string(oid.c_str());
json_object_object_add(json_id, "$oid", json_oid);
json_object_object_add(jsonObject, "_id", json_id);
json_object_object_add(jsonObject, "datas", json_datas);
} else {
cout << typeid(json_datas).name() << endl;
cout << "json_datas type: " << json_type_to_name(json_object_get_type(json_datas)) << endl;
}
json_tokener_reset(tok);
response.send(Http::Code::Ok, json_object_to_json_string_ext(jsonObject, JSON_C_TO_STRING_SPACED | JSON_C_TO_STRING_PRETTY), MIME(Application, Json));
json_object_put(jsonObject);
}
int main(int argc, char *argv[]) {
string config_path = "";
const char *homedir;
if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || (homedir = getenv("HOME")) == NULL) {
homedir = getpwuid(getuid())->pw_dir;
}
config_path.append(homedir);
config_path.append("/.config/umosapi/config.txt");
bool showHelp = false;
int config_port = 9080;
int thr = 2;
auto cli = clara::detail::Help(showHelp)
| clara::detail::Opt( config_path, "config" )["-c"]["--config"]("Config file path. Default `~/.config/umosapi/config.txt`.")
| clara::detail::Opt( config_port, "port" )["-p"]["--port"]("Port to listen. Default: `9080`.")
| clara::detail::Opt( thr, "treads" )["-t"]["--threads"]("Number of threads. Default: `2`.");
auto result = cli.parse( clara::detail::Args( argc, argv ) );
if( !result )
{
std::cerr << "Error in command line: " << result.errorMessage() << std::endl;
std::cerr << cli << std::endl;
exit(1);
}
if ( showHelp ) {
std::cerr << cli << std::endl;
exit(1);
}
Address addr(Ipv4::any(), Port(config_port));
cout << "Using " << hardware_concurrency() << " cores";
cout << " - " << thr << " threads" << endl;
cout << "Listen on 0.0.0.0:" << config_port << endl;
cout << "Using config file '" << config_path << "'" << endl;
if (!std::filesystem::exists(config_path)) {
cout << "Error fatal : config file '" << config_path << "' not found" << endl;
cout << "config.txt is search here: ~/.config/umosapi/config.txt" << endl;
exit (EXIT_FAILURE);
}
load_config(config_path);
cout << "Using swaggerui " << config["swaggerui"] << " path" << endl;
cout << "Using mongoURI " << config["mongoURI"] << endl;
UmosapiService umosapi(addr);
umosapi.init(thr);
umosapi.start(config["swaggerui"]);
}
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