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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "Device.hxx"
#include "Util.hxx"
#include "lib/expat/ExpatParser.hxx"
#include "util/Error.hxx"
#include <stdlib.h>
#include <string.h>
UPnPDevice::~UPnPDevice()
{
/* this destructor exists here just so it won't get inlined */
}
/**
* An XML parser which constructs an UPnP device object from the
* device descriptor.
*/
class UPnPDeviceParser final : public CommonExpatParser {
UPnPDevice &m_device;
std::string *value;
UPnPService m_tservice;
public:
UPnPDeviceParser(UPnPDevice& device)
:m_device(device),
value(nullptr) {}
protected:
virtual void StartElement(const XML_Char *name, const XML_Char **) {
value = nullptr;
switch (name[0]) {
case 'c':
if (strcmp(name, "controlURL") == 0)
value = &m_tservice.controlURL;
break;
case 'd':
if (strcmp(name, "deviceType") == 0)
value = &m_device.deviceType;
break;
case 'f':
if (strcmp(name, "friendlyName") == 0)
value = &m_device.friendlyName;
break;
case 'm':
if (strcmp(name, "manufacturer") == 0)
value = &m_device.manufacturer;
else if (strcmp(name, "modelName") == 0)
value = &m_device.modelName;
break;
case 's':
if (strcmp(name, "serviceType") == 0)
value = &m_tservice.serviceType;
break;
case 'U':
if (strcmp(name, "UDN") == 0)
value = &m_device.UDN;
else if (strcmp(name, "URLBase") == 0)
value = &m_device.URLBase;
break;
}
}
virtual void EndElement(const XML_Char *name) {
if (value != nullptr) {
trimstring(*value);
value = nullptr;
} else if (!strcmp(name, "service")) {
m_device.services.emplace_back(std::move(m_tservice));
m_tservice.clear();
}
}
virtual void CharacterData(const XML_Char *s, int len) {
if (value != nullptr)
value->append(s, len);
}
};
bool
UPnPDevice::Parse(const std::string &url, const char *description,
Error &error)
{
{
UPnPDeviceParser mparser(*this);
if (!mparser.Parse(description, strlen(description),
true, error))
return false;
}
if (URLBase.empty()) {
// The standard says that if the URLBase value is empty, we should use
// the url the description was retrieved from. However this is
// sometimes something like http://host/desc.xml, sometimes something
// like http://host/
if (url.size() < 8) {
// ???
URLBase = url;
} else {
auto hostslash = url.find_first_of("/", 7);
if (hostslash == std::string::npos || hostslash == url.size()-1) {
URLBase = url;
} else {
URLBase = path_getfather(url);
}
}
}
return true;
}
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