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-rw-r--r--src/db/upnp/Device.cxx140
1 files changed, 140 insertions, 0 deletions
diff --git a/src/db/upnp/Device.cxx b/src/db/upnp/Device.cxx
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+++ b/src/db/upnp/Device.cxx
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+/*
+ * Copyright (C) 2003-2014 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 "Expat.hxx"
+#include "Log.hxx"
+#include "util/Error.hxx"
+
+#include <stdlib.h>
+
+#include <string.h>
+
+/**
+ * An XML parser which constructs an UPnP device object from the
+ * device descriptor.
+ */
+class UPnPDeviceParser final : public CommonExpatParser {
+ UPnPDevice &m_device;
+ std::string m_tabs;
+ std::vector<std::string> m_path;
+ UPnPService m_tservice;
+
+public:
+ UPnPDeviceParser(UPnPDevice& device)
+ :m_device(device) {}
+
+protected:
+ virtual void StartElement(const XML_Char *name, const XML_Char **) {
+ m_tabs.push_back('\t');
+ m_path.push_back(name);
+ }
+
+ virtual void EndElement(const XML_Char *name) {
+ if (!strcmp(name, "service")) {
+ m_device.services.push_back(m_tservice);
+ m_tservice.clear();
+ }
+ if (m_tabs.size())
+ m_tabs.erase(m_tabs.size()-1);
+ m_path.pop_back();
+ }
+
+ virtual void CharacterData(const XML_Char *s, int len) {
+ if (len == 0)
+ return;
+
+ std::string str(s, len);
+ trimstring(str);
+ switch (m_path.back()[0]) {
+ case 'c':
+ if (!m_path.back().compare("controlURL"))
+ m_tservice.controlURL += str;
+ break;
+ case 'd':
+ if (!m_path.back().compare("deviceType"))
+ m_device.deviceType += str;
+ break;
+ case 'e':
+ if (!m_path.back().compare("eventSubURL"))
+ m_tservice.eventSubURL += str;
+ break;
+ case 'f':
+ if (!m_path.back().compare("friendlyName"))
+ m_device.friendlyName += str;
+ break;
+ case 'm':
+ if (!m_path.back().compare("manufacturer"))
+ m_device.manufacturer += str;
+ else if (!m_path.back().compare("modelName"))
+ m_device.modelName += str;
+ break;
+ case 's':
+ if (!m_path.back().compare("serviceType"))
+ m_tservice.serviceType = str;
+ else if (!m_path.back().compare("serviceId"))
+ m_tservice.serviceId += str;
+ case 'S':
+ if (!m_path.back().compare("SCPDURL"))
+ m_tservice.SCPDURL = str;
+ break;
+ case 'U':
+ if (!m_path.back().compare("UDN"))
+ m_device.UDN = str;
+ else if (!m_path.back().compare("URLBase"))
+ m_device.URLBase += str;
+ break;
+ }
+ }
+};
+
+UPnPDevice::UPnPDevice(const std::string &url, const std::string &description)
+ :ok(false)
+{
+ UPnPDeviceParser mparser(*this);
+ Error error;
+ if (!mparser.Parse(description.data(), description.length(), true,
+ error)) {
+ // TODO: pass Error to caller
+ LogError(error);
+ return;
+ }
+
+ 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);
+ }
+ }
+ }
+ ok = true;
+}