Split the lib in smaller libs to ease unit tests

2020-02-13 18:04:35 +01:00
parent 1e2c1caeed
commit 15e53caa2d
131 changed files with 382 additions and 138 deletions
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2019 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "SubsonicResponse.hpp"
+
+#include <Wt/Json/Array.h>
+#include <Wt/Json/Object.h>
+#include <Wt/Json/Value.h>
+#include <Wt/Json/Serializer.h>
+
+#include <boost/property_tree/json_parser.hpp>
+#include <boost/property_tree/xml_parser.hpp>
+
+#include "utils/Exception.hpp"
+
+namespace API::Subsonic
+{
+
+std::string
+ResponseFormatToMimeType(ResponseFormat format)
+{
+	switch (format)
+	{
+		case ResponseFormat::xml: return "text/xml";
+		case ResponseFormat::json: return "application/json";
+	}
+
+	return "";
+}
+
+void
+Response::Node::setValue(std::string_view value)
+{
+	if (!_children.empty() || !_childrenArrays.empty())
+		throw LmsException {"Node already has children"};
+
+	_value = value;
+}
+
+void
+Response::Node::setAttribute(std::string_view key, std::string_view value)
+{
+	_attributes[std::string {key}] = value;
+}
+
+void
+Response::Node::addChild(const std::string& key, Node node)
+{
+	if (!_value.empty())
+		throw LmsException {"Node already has a value"};
+
+	_children[key].emplace_back(std::move(node));
+}
+
+void
+Response::Node::addArrayChild(const std::string& key, Node node)
+{
+	if (!_value.empty())
+		throw LmsException {"Node already has a value"};
+
+	_childrenArrays[key].emplace_back(std::move(node));
+}
+
+
+Response::Node&
+Response::Node::createChild(const std::string& key)
+{
+	_children[key].emplace_back();
+	return _children[key].back();
+}
+
+Response::Node&
+Response::Node::createArrayChild(const std::string& key)
+{
+	_childrenArrays[key].emplace_back();
+	return _childrenArrays[key].back();
+}
+
+Response
+Response::createOkResponse()
+{
+	Response response;
+	Node& responseNode {response._root.createChild("subsonic-response")};
+
+	responseNode.setAttribute("status", "ok");
+	responseNode.setAttribute("version", API_VERSION_STR);
+
+	return response;
+}
+
+Response
+Response::createFailedResponse(const Error& error)
+{
+	Response response;
+	Node& responseNode {response._root.createChild("subsonic-response")};
+
+	responseNode.setAttribute("status", "failed");
+	responseNode.setAttribute("version", API_VERSION_STR);
+
+	Node& errorNode {responseNode.createChild("error")};
+	errorNode.setAttribute("code", std::to_string(static_cast<int>(error.getCode())));
+	errorNode.setAttribute("message", error.getMessage());
+
+	return response;
+}
+
+void
+Response::addNode(const std::string& key, Node node)
+{
+	return _root._children["subsonic-response"].front().addChild(key, std::move(node));
+}
+
+Response::Node&
+Response::createNode(const std::string& key)
+{
+	return _root._children["subsonic-response"].front().createChild(key);
+}
+
+Response::Node&
+Response::createArrayNode(const std::string& key)
+{
+	return _root._children["subsonic-response"].front().createArrayChild(key);
+}
+
+void
+Response::write(std::ostream& os, ResponseFormat format)
+{
+	switch (format)
+	{
+		case ResponseFormat::xml:
+			writeXML(os);
+			break;
+		case ResponseFormat::json:
+			writeJSON(os);
+			break;
+	}
+}
+
+void
+Response::writeXML(std::ostream& os)
+{
+	std::function<boost::property_tree::ptree(const Response::Node&)> nodeToPropertyTree = [&] (const Response::Node& node)
+	{
+		boost::property_tree::ptree res;
+
+		for (auto itAttribute : node._attributes)
+			res.put("<xmlattr>." + itAttribute.first, itAttribute.second);
+
+		if (!node._value.empty())
+		{
+			res.put_value(node._value);
+		}
+		else
+		{
+			for (auto itChildNode : node._children)
+			{
+				for (const Response::Node& childNode : itChildNode.second)
+					res.add_child(itChildNode.first, nodeToPropertyTree(childNode));
+			}
+
+			for (auto itChildArrayNode : node._childrenArrays)
+			{
+				const std::vector<Response::Node>& childArrayNodes {itChildArrayNode .second};
+
+				for (const Response::Node& childNode : childArrayNodes )
+					res.add_child(itChildArrayNode.first, nodeToPropertyTree(childNode));
+			}
+		}
+
+		return res;
+	};
+
+	boost::property_tree::ptree root {nodeToPropertyTree(_root)};
+	boost::property_tree::write_xml(os, root);
+}
+
+void
+Response::writeJSON(std::ostream& os)
+{
+	namespace Json = Wt::Json;
+
+	std::function<Json::Object(const Response::Node&)> nodeToJsonObject = [&] (const Response::Node& node)
+	{
+		Json::Object res;
+
+		for (auto itAttribute : node._attributes)
+			res[itAttribute.first] = Json::Value {itAttribute.second};
+
+		if (!node._value.empty())
+		{
+			res["value"] = Json::Value {node._value};
+		}
+		else
+		{
+			for (auto itChildNode : node._children)
+			{
+				for (const Response::Node& childNode : itChildNode.second)
+					res[itChildNode.first] = nodeToJsonObject(childNode);
+			}
+
+			for (auto itChildArrayNode : node._childrenArrays)
+			{
+				const std::vector<Response::Node>& childArrayNodes {itChildArrayNode .second};
+
+				Json::Array array;
+				for (const Response::Node& childNode : childArrayNodes )
+					array.emplace_back(nodeToJsonObject(childNode));
+
+				res[itChildArrayNode.first] = std::move(array);
+			}
+		}
+
+		return res;
+	};
+
+	Json::Object root {nodeToJsonObject(_root)};
+	os << Json::serialize(root);
+}
+
+} // namespace
+