UPnP database plugin

[mk: renamed source files, applied coding style, reduced bloat, using
MPD's threading library, using MPD's error reporting and logging
library and refactoring, fixed lots of bugs]

1 files changed, 144 insertions, 0 deletions

diff --git a/src/db/upnp/upnpplib.cxx b/src/db/upnp/upnpplib.cxx
new file mode 100644
index 000000000..27dd9557a
--- /dev/null
+++ b/src/db/upnp/upnpplib.cxx
@@ -0,0 +1,144 @@
+/*
+ * 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 "upnpplib.hxx"
+#include "Domain.hxx"
+#include "Util.hxx"
+#include "Log.hxx"
+
+#include <string>
+#include <sstream>
+#include <map>
+#include <vector>
+#include <set>
+
+#include <upnp/ixml.h>
+#include <upnp/upnpdebug.h>
+
+static LibUPnP *theLib;
+
+LibUPnP *
+LibUPnP::getLibUPnP(Error &error)
+{
+	if (theLib == nullptr)
+		theLib = new LibUPnP;
+
+	if (!theLib->ok()) {
+		error.Set(theLib->GetInitError());
+		return nullptr;
+	}
+
+	return theLib;
+}
+
+LibUPnP::LibUPnP()
+{
+	auto code = UpnpInit(0, 0);
+	if (code != UPNP_E_SUCCESS) {
+		init_error.Format(upnp_domain, code,
+				  "UpnpInit() failed: %s",
+				  UpnpGetErrorMessage(code));
+		return;
+	}
+
+	setMaxContentLength(2000*1024);
+#ifdef DEBUG
+	UpnpCloseLog();
+#endif
+
+	code = UpnpRegisterClient(o_callback, (void *)this, &m_clh);
+	if (code != UPNP_E_SUCCESS) {
+		init_error.Format(upnp_domain, code,
+				  "UpnpRegisterClient() failed: %s",
+				  UpnpGetErrorMessage(code));
+		return;
+	}
+
+	// Servers sometimes make error (e.g.: minidlna returns bad utf-8)
+	ixmlRelaxParser(1);
+}
+
+void LibUPnP::setMaxContentLength(int bytes)
+{
+	UpnpSetMaxContentLength(bytes);
+}
+
+bool LibUPnP::setLogFileName(const std::string& fn)
+{
+	const ScopeLock protect(m_mutex);
+
+	if (fn.empty()) {
+		UpnpCloseLog();
+	} else {
+		UpnpSetLogLevel(UPNP_INFO);
+		UpnpSetLogFileNames(fn.c_str(), fn.c_str());
+		int code = UpnpInitLog();
+		if (code != UPNP_E_SUCCESS) {
+			FormatError(upnp_domain, "UpnpInitLog() failed: %s",
+				    UpnpGetErrorMessage(code));
+			return false;
+		}
+	}
+
+	return true;
+}
+
+void
+LibUPnP::registerHandler(Upnp_EventType et, Upnp_FunPtr handler, void *cookie)
+{
+	const ScopeLock protect(m_mutex);
+
+	if (handler == nullptr)
+		m_handlers.erase(et);
+	else
+		m_handlers.emplace(et, Handler(handler, cookie));
+}
+
+std::string
+LibUPnP::errAsString(const std::string& who, int code)
+{
+	std::ostringstream os;
+	os << who << " :" << code << ": " << UpnpGetErrorMessage(code);
+	return os.str();
+}
+
+int
+LibUPnP::o_callback(Upnp_EventType et, void* evp, void* cookie)
+{
+	LibUPnP *ulib = (LibUPnP *)cookie;
+	if (ulib == nullptr) {
+		// Because the asyncsearch calls uses a null cookie.
+		ulib = theLib;
+	}
+
+	auto it = ulib->m_handlers.find(et);
+	if (it != ulib->m_handlers.end()) {
+		(it->second.handler)(et, evp, it->second.cookie);
+	}
+	return UPNP_E_SUCCESS;
+}
+
+LibUPnP::~LibUPnP()
+{
+	int error = UpnpFinish();
+	if (error != UPNP_E_SUCCESS)
+		FormatError(upnp_domain, "UpnpFinish() failed: %s",
+			    UpnpGetErrorMessage(error));
+}