108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "Device.hxx"
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#include "Util.hxx"
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#include "lib/expat/ExpatParser.hxx"
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#include <string.h>
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/* this destructor exists here just so it won't get inlined */
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UPnPDevice::~UPnPDevice() noexcept = default;
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/**
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* An XML parser which constructs an UPnP device object from the
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* device descriptor.
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*/
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class UPnPDeviceParser final : public CommonExpatParser {
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UPnPDevice &m_device;
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std::string *value;
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UPnPService m_tservice;
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public:
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explicit UPnPDeviceParser(UPnPDevice& device)
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:m_device(device),
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value(nullptr) {}
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protected:
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void StartElement(const XML_Char *name, const XML_Char **) override {
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value = nullptr;
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switch (name[0]) {
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case 'c':
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if (strcmp(name, "controlURL") == 0)
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value = &m_tservice.controlURL;
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break;
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case 'd':
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if (strcmp(name, "deviceType") == 0)
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value = &m_device.deviceType;
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break;
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case 'f':
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if (strcmp(name, "friendlyName") == 0)
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value = &m_device.friendlyName;
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break;
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case 'm':
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if (strcmp(name, "manufacturer") == 0)
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value = &m_device.manufacturer;
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else if (strcmp(name, "modelName") == 0)
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value = &m_device.modelName;
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break;
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case 's':
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if (strcmp(name, "serviceType") == 0)
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value = &m_tservice.serviceType;
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break;
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case 'U':
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if (strcmp(name, "UDN") == 0)
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value = &m_device.UDN;
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else if (strcmp(name, "URLBase") == 0)
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value = &m_device.URLBase;
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break;
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}
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}
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void EndElement(const XML_Char *name) override {
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if (value != nullptr) {
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trimstring(*value);
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value = nullptr;
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} else if (!strcmp(name, "service")) {
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m_device.services.emplace_back(std::move(m_tservice));
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m_tservice = {};
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}
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}
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void CharacterData(const XML_Char *s, int len) override {
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if (value != nullptr)
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value->append(s, len);
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}
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};
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void
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UPnPDevice::Parse(const std::string_view url, const std::string_view description)
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{
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{
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UPnPDeviceParser mparser(*this);
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mparser.Parse(description, true);
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}
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if (URLBase.empty()) {
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// The standard says that if the URLBase value is empty, we should use
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// the url the description was retrieved from. However this is
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// sometimes something like http://host/desc.xml, sometimes something
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// like http://host/
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if (url.size() < 8) {
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// ???
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URLBase = url;
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} else {
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auto hostslash = url.find('/', 7);
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if (hostslash == std::string::npos || hostslash == url.size()-1) {
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URLBase = url;
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} else {
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URLBase = path_getfather(url);
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}
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}
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}
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}
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