hyperion.ng/libsrc/leddevice/dev_net/ProviderRestApi.cpp
2020-08-08 13:09:15 +02:00

248 lines
5.5 KiB
C++

// Local-Hyperion includes
#include "ProviderRestApi.h"
// Qt includes
#include <QEventLoop>
#include <QNetworkReply>
#include <QByteArray>
//std includes
#include <iostream>
// Constants
namespace {
const QChar ONE_SLASH = '/';
} //End of constants
ProviderRestApi::ProviderRestApi(const QString &host, int port, const QString &basePath)
:_log(Logger::getInstance("LEDDEVICE"))
,_networkManager(nullptr)
,_scheme("http")
,_hostname(host)
,_port(port)
{
_networkManager = new QNetworkAccessManager();
_apiUrl.setScheme(_scheme);
_apiUrl.setHost(host);
_apiUrl.setPort(port);
_basePath = basePath;
}
ProviderRestApi::ProviderRestApi(const QString &host, int port)
: ProviderRestApi(host, port, "") {}
ProviderRestApi::ProviderRestApi()
: ProviderRestApi("", -1) {}
ProviderRestApi::~ProviderRestApi()
{
if ( _networkManager != nullptr )
{
delete _networkManager;
}
}
void ProviderRestApi::setBasePath(const QString &basePath)
{
_basePath.clear();
appendPath (_basePath, basePath );
}
void ProviderRestApi::setPath ( const QString &path )
{
_path.clear();
appendPath (_path, path );
}
void ProviderRestApi::appendPath ( const QString &path )
{
appendPath (_path, path );
}
void ProviderRestApi::appendPath ( QString& path, const QString &appendPath) const
{
if ( !appendPath.isEmpty() && appendPath != ONE_SLASH )
{
if (path.isEmpty() || path == ONE_SLASH )
{
path.clear();
if (appendPath[0] != ONE_SLASH )
{
path.push_back(ONE_SLASH);
}
}
else if (path[path.size()-1] == ONE_SLASH && appendPath[0] == ONE_SLASH)
{
path.chop(1);
}
else if (path[path.size()-1] != ONE_SLASH && appendPath[0] != ONE_SLASH)
{
path.push_back(ONE_SLASH);
}
else
{
// Only one slash.
}
path.append(appendPath);
}
}
void ProviderRestApi::setFragment(const QString &fragment)
{
_fragment = fragment;
}
void ProviderRestApi::setQuery(const QUrlQuery &query)
{
_query = query;
}
QUrl ProviderRestApi::getUrl() const
{
QUrl url = _apiUrl;
QString fullPath = _basePath;
appendPath (fullPath, _path );
url.setPath(fullPath);
url.setFragment( _fragment );
url.setQuery( _query );
return url;
}
httpResponse ProviderRestApi::get()
{
return get( getUrl() );
}
httpResponse ProviderRestApi::get(const QUrl &url)
{
Debug(_log, "GET: [%s]", QSTRING_CSTR( url.toString() ));
// Perform request
QNetworkRequest request(url);
QNetworkReply* reply = _networkManager->get(request);
// Connect requestFinished signal to quit slot of the loop.
QEventLoop loop;
loop.connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
// Go into the loop until the request is finished.
loop.exec();
httpResponse response;
if(reply->operation() == QNetworkAccessManager::GetOperation)
{
response = getResponse(reply );
}
// Free space.
reply->deleteLater();
// Return response
return response;
}
httpResponse ProviderRestApi::put(const QString &body)
{
return put( getUrl(), body );
}
httpResponse ProviderRestApi::put(const QUrl &url, const QString &body)
{
Debug(_log, "PUT: [%s] [%s]", QSTRING_CSTR( url.toString() ), QSTRING_CSTR( body ) );
// Perform request
QNetworkRequest request(url);
QNetworkReply* reply = _networkManager->put(request, body.toUtf8());
// Connect requestFinished signal to quit slot of the loop.
QEventLoop loop;
loop.connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
// Go into the loop until the request is finished.
loop.exec();
httpResponse response;
if(reply->operation() == QNetworkAccessManager::PutOperation)
{
response = getResponse(reply);
}
// Free space.
reply->deleteLater();
// Return response
return response;
}
httpResponse ProviderRestApi::getResponse(QNetworkReply* const &reply)
{
httpResponse response;
int httpStatusCode = reply->attribute( QNetworkRequest::HttpStatusCodeAttribute ).toInt();
response.setHttpStatusCode(httpStatusCode);
Debug(_log, "Reply.httpStatusCode [%d]", httpStatusCode );
response.setNetworkReplyError(reply->error());
if(reply->error() == QNetworkReply::NoError)
{
if ( httpStatusCode != 204 ){
QByteArray replyData = reply->readAll();
if ( !replyData.isEmpty())
{
QJsonParseError error;
QJsonDocument jsonDoc = QJsonDocument::fromJson(replyData, &error);
if (error.error != QJsonParseError::NoError)
{
//Received not valid JSON response
//std::cout << "Response: [" << replyData.toStdString() << "]" << std::endl;
response.setError(true);
response.setErrorReason(error.errorString());
}
else
{
//std::cout << "Response: [" << QString (jsonDoc.toJson(QJsonDocument::Compact)).toStdString() << "]" << std::endl;
response.setBody( jsonDoc );
}
}
else
{ // Create valid body which is empty
response.setBody( QJsonDocument() );
}
}
}
else
{
QString errorReason;
if ( httpStatusCode > 0 ) {
QString httpReason = reply->attribute( QNetworkRequest::HttpReasonPhraseAttribute ).toString();
QString advise;
switch ( httpStatusCode ) {
case 400:
advise = "Check Request Body";
break;
case 401:
advise = "Check Authentication Token (API Key)";
break;
case 404:
advise = "Check Resource given";
break;
default:
break;
}
errorReason = QString ("[%3 %4] - %5").arg(QString(httpStatusCode) , httpReason, advise);
}
else {
errorReason = reply->errorString();
}
response.setError(true);
response.setErrorReason(errorReason);
// Create valid body which is empty
response.setBody( QJsonDocument() );
}
return response;
}