494 lines
12 KiB
C++
494 lines
12 KiB
C++
// Local-Hyperion includes
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#include "ProviderRestApi.h"
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// Qt includes
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#include <QObject>
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#include <QEventLoop>
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#include <QNetworkReply>
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#include <QByteArray>
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#include <QJsonObject>
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#include <QList>
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#include <QHash>
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#include <QFile>
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#include <QSslSocket>
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//std includes
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#include <iostream>
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#include <chrono>
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// Constants
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namespace {
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const QChar ONE_SLASH = '/';
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enum HttpStatusCode {
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NoContent = 204,
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BadRequest = 400,
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UnAuthorized = 401,
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Forbidden = 403,
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NotFound = 404
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};
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} //End of constants
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ProviderRestApi::ProviderRestApi(const QString& scheme, const QString& host, int port, const QString& basePath)
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: _log(Logger::getInstance("LEDDEVICE"))
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, _networkManager(nullptr)
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, _requestTimeout(DEFAULT_REST_TIMEOUT)
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,_isSeflSignedCertificateAccpeted(false)
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{
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_networkManager = new QNetworkAccessManager();
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 9, 0))
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_networkManager->setRedirectPolicy(QNetworkRequest::NoLessSafeRedirectPolicy);
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#endif
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_apiUrl.setScheme(scheme);
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_apiUrl.setHost(host);
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_apiUrl.setPort(port);
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_basePath = basePath;
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}
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ProviderRestApi::ProviderRestApi(const QString& scheme, const QString& host, int port)
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: ProviderRestApi(scheme, host, port, "") {}
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ProviderRestApi::ProviderRestApi(const QString& host, int port, const QString& basePath)
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: ProviderRestApi((port == 443) ? "https" : "http", host, port, basePath) {}
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ProviderRestApi::ProviderRestApi(const QString& host, int port)
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: ProviderRestApi(host, port, "") {}
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ProviderRestApi::ProviderRestApi()
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: ProviderRestApi("", -1) {}
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ProviderRestApi::~ProviderRestApi()
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{
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delete _networkManager;
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}
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void ProviderRestApi::setScheme(const QString& scheme)
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{
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_apiUrl.setScheme(scheme);
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}
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void ProviderRestApi::setUrl(const QUrl& url)
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{
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_apiUrl = url;
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_basePath = url.path();
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}
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void ProviderRestApi::setBasePath(const QStringList& pathElements)
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{
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setBasePath(pathElements.join(ONE_SLASH));
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}
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void ProviderRestApi::setBasePath(const QString& basePath)
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{
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_basePath.clear();
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appendPath(_basePath, basePath);
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}
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void ProviderRestApi::clearBasePath()
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{
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_basePath.clear();
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}
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void ProviderRestApi::setPath(const QStringList& pathElements)
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{
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_path.clear();
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appendPath(_path, pathElements.join(ONE_SLASH));
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}
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void ProviderRestApi::setPath(const QString& path)
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{
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_path.clear();
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appendPath(_path, path);
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}
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void ProviderRestApi::clearPath()
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{
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_path.clear();
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}
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void ProviderRestApi::appendPath(const QString& path)
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{
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appendPath(_path, path);
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}
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void ProviderRestApi::appendPath(const QStringList& pathElements)
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{
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appendPath(_path, pathElements.join(ONE_SLASH));
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}
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void ProviderRestApi::appendPath ( QString& path, const QString &appendPath)
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{
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if (!appendPath.isEmpty() && appendPath != ONE_SLASH)
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{
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if (path.isEmpty() || path == ONE_SLASH)
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{
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path.clear();
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if (appendPath[0] != ONE_SLASH)
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{
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path.push_back(ONE_SLASH);
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}
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}
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else if (path[path.size() - 1] == ONE_SLASH && appendPath[0] == ONE_SLASH)
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{
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path.chop(1);
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}
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else if (path[path.size() - 1] != ONE_SLASH && appendPath[0] != ONE_SLASH)
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{
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path.push_back(ONE_SLASH);
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}
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else
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{
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// Only one slash.
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}
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path.append(appendPath);
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}
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}
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void ProviderRestApi::setFragment(const QString& fragment)
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{
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_fragment = fragment;
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}
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void ProviderRestApi::setQuery(const QUrlQuery& query)
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{
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_query = query;
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}
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QUrl ProviderRestApi::getUrl() const
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{
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QUrl url = _apiUrl;
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QString fullPath = _basePath;
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appendPath(fullPath, _path);
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url.setPath(fullPath);
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url.setFragment(_fragment);
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url.setQuery(_query);
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return url;
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}
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httpResponse ProviderRestApi::get()
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{
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return get(getUrl());
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}
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httpResponse ProviderRestApi::get(const QUrl& url)
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{
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return executeOperation(QNetworkAccessManager::GetOperation, url);
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}
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httpResponse ProviderRestApi::put(const QJsonObject &body)
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{
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return put( getUrl(), QJsonDocument(body).toJson(QJsonDocument::Compact));
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}
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httpResponse ProviderRestApi::put(const QString &body)
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{
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return put( getUrl(), body.toUtf8() );
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}
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httpResponse ProviderRestApi::put(const QUrl &url, const QByteArray &body)
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{
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return executeOperation(QNetworkAccessManager::PutOperation, url, body);
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}
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httpResponse ProviderRestApi::post(const QJsonObject& body)
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{
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return post( getUrl(), QJsonDocument(body).toJson(QJsonDocument::Compact));
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}
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httpResponse ProviderRestApi::post(const QString& body)
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{
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return post( getUrl(), body.toUtf8() );
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}
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httpResponse ProviderRestApi::post(const QUrl& url, const QByteArray& body)
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{
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return executeOperation(QNetworkAccessManager::PostOperation, url, body);
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}
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httpResponse ProviderRestApi::deleteResource(const QUrl& url)
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{
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return executeOperation(QNetworkAccessManager::DeleteOperation, url);
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}
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httpResponse ProviderRestApi::executeOperation(QNetworkAccessManager::Operation operation, const QUrl& url, const QByteArray& body)
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{
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// Perform request
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QNetworkRequest request(_networkRequestHeaders);
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request.setUrl(url);
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request.setOriginatingObject(this);
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
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_networkManager->setTransferTimeout(_requestTimeout.count());
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#endif
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QDateTime start = QDateTime::currentDateTime();
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QString opCode;
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QNetworkReply* reply;
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switch (operation) {
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case QNetworkAccessManager::GetOperation:
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opCode = "GET";
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reply = _networkManager->get(request);
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break;
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case QNetworkAccessManager::PutOperation:
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opCode = "PUT";
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reply = _networkManager->put(request, body);
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break;
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case QNetworkAccessManager::PostOperation:
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opCode = "POST";
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reply = _networkManager->post(request, body);
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break;
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case QNetworkAccessManager::DeleteOperation:
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opCode = "DELETE";
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reply = _networkManager->deleteResource(request);
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break;
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default:
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Error(_log, "Unsupported operation");
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return httpResponse();
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}
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// Connect requestFinished signal to quit slot of the loop.
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QEventLoop loop;
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QEventLoop::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 0))
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ReplyTimeout* timeout = ReplyTimeout::set(reply, _requestTimeout.count());
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#endif
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// Go into the loop until the request is finished.
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loop.exec();
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QDateTime end = QDateTime::currentDateTime();
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httpResponse response = (reply->operation() == operation) ? getResponse(reply) : httpResponse();
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Debug(_log, "%s took %lldms, HTTP %d: [%s] [%s]", QSTRING_CSTR(opCode), start.msecsTo(end), response.getHttpStatusCode(), QSTRING_CSTR(url.toString()), body.constData());
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// Free space.
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reply->deleteLater();
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return response;
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}
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httpResponse ProviderRestApi::getResponse(QNetworkReply* const& reply)
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{
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httpResponse response;
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HttpStatusCode httpStatusCode = static_cast<HttpStatusCode>(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt());
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response.setHttpStatusCode(httpStatusCode);
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response.setNetworkReplyError(reply->error());
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response.setHeaders(reply->rawHeaderPairs());
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if (reply->error() == QNetworkReply::NoError)
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{
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QByteArray replyData = reply->readAll();
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if (!replyData.isEmpty())
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{
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QJsonParseError error;
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QJsonDocument jsonDoc = QJsonDocument::fromJson(replyData, &error);
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if (error.error != QJsonParseError::NoError)
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{
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//Received not valid JSON response
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response.setError(true);
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response.setErrorReason(error.errorString());
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}
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else
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{
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response.setBody(jsonDoc);
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}
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}
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else
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{ // Create valid body which is empty
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response.setBody(QJsonDocument());
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}
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}
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else
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{
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QString errorReason;
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if (reply->error() == QNetworkReply::OperationCanceledError)
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{
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errorReason = "Network request timeout error";
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}
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else
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{
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qDebug() << "httpStatusCode: "<< httpStatusCode;
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if (httpStatusCode > 0) {
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QString httpReason = reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toString();
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QString advise;
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switch ( httpStatusCode ) {
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case HttpStatusCode::BadRequest:
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advise = "Check Request Body";
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break;
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case HttpStatusCode::UnAuthorized:
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advise = "Check Authentication Token (API Key)";
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break;
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case HttpStatusCode::Forbidden:
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advise = "No permission to access the given resource";
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break;
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case HttpStatusCode::NotFound:
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advise = "Check Resource given";
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break;
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default:
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advise = httpReason;
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break;
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}
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errorReason = QString ("[%3 %4] - %5").arg(httpStatusCode).arg(httpReason, advise);
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}
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else
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{
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errorReason = reply->errorString();
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}
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}
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response.setError(true);
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response.setErrorReason(errorReason);
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}
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return response;
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}
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void ProviderRestApi::setHeader(QNetworkRequest::KnownHeaders header, const QVariant& value)
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{
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QVariant headerValue = _networkRequestHeaders.header(header);
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if (headerValue.isNull())
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{
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_networkRequestHeaders.setHeader(header, value);
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}
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else
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{
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if (!headerValue.toString().contains(value.toString()))
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{
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_networkRequestHeaders.setHeader(header, headerValue.toString() + "," + value.toString());
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}
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}
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}
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void ProviderRestApi::setHeader(const QByteArray &headerName, const QByteArray &headerValue)
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{
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_networkRequestHeaders.setRawHeader(headerName, headerValue);
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}
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void httpResponse::setHeaders(const QList<QNetworkReply::RawHeaderPair>& pairs)
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{
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_responseHeaders.clear();
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for (const auto &item: pairs)
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{
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_responseHeaders[item.first] = item.second;
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}
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}
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QByteArray httpResponse::getHeader(const QByteArray header) const
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{
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return _responseHeaders.value(header);
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}
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bool ProviderRestApi::setCaCertificate(const QString& caFileName)
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{
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bool rc {false};
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/// Add our own CA to the default SSL configuration
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QSslConfiguration configuration = QSslConfiguration::defaultConfiguration();
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QFile caFile (caFileName);
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if (!caFile.open(QIODevice::ReadOnly))
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{
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Error(_log,"Unable to open CA-Certificate file: %s", QSTRING_CSTR(caFileName));
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return false;
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}
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QSslCertificate cert (&caFile);
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caFile.close();
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QList<QSslCertificate> allowedCAs;
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allowedCAs << cert;
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configuration.setCaCertificates(allowedCAs);
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QSslConfiguration::setDefaultConfiguration(configuration);
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#ifndef QT_NO_SSL
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if (QSslSocket::supportsSsl())
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{
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QObject::connect( _networkManager, &QNetworkAccessManager::sslErrors, this, &ProviderRestApi::onSslErrors, Qt::UniqueConnection );
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_networkManager->connectToHostEncrypted(_apiUrl.host(), _apiUrl.port(), configuration);
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rc = true;
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}
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#endif
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return rc;
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}
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void ProviderRestApi::acceptSelfSignedCertificates(bool isAccepted)
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{
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_isSeflSignedCertificateAccpeted = isAccepted;
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}
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void ProviderRestApi::setAlternateServerIdentity(const QString& serverIdentity)
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{
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_serverIdentity = serverIdentity;
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}
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QString ProviderRestApi::getAlternateServerIdentity() const
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{
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return _serverIdentity;
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}
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bool ProviderRestApi::checkServerIdentity(const QSslConfiguration& sslConfig) const
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{
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bool isServerIdentified {false};
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// Perform common name validation
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QSslCertificate serverCertificate = sslConfig.peerCertificate();
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QStringList commonName = serverCertificate.subjectInfo(QSslCertificate::CommonName);
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if ( commonName.contains(getAlternateServerIdentity(), Qt::CaseInsensitive) )
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{
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isServerIdentified = true;
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}
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return isServerIdentified;
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}
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void ProviderRestApi::onSslErrors(QNetworkReply* reply, const QList<QSslError>& errors)
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{
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int ignoredErrorCount {0};
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for (const QSslError &error : errors)
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{
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bool ignoreSslError{false};
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switch (error.error()) {
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case QSslError::HostNameMismatch :
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if (checkServerIdentity(reply->sslConfiguration()) )
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{
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ignoreSslError = true;
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}
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break;
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case QSslError::SelfSignedCertificate :
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if (_isSeflSignedCertificateAccpeted)
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{
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ignoreSslError = true;
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}
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break;
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default:
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break;
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}
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if (ignoreSslError)
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{
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++ignoredErrorCount;
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}
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else
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{
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Debug (_log,"SSL Error occured: [%d] %s ",error.error(), QSTRING_CSTR(error.errorString()));
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}
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}
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if (ignoredErrorCount == errors.size())
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{
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reply->ignoreSslErrors();
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}
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}
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