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/* Copyright (C) 2014 J.F.Dockes
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <unordered_map>
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#include <string>
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#include "libupnpp/log.hxx"
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#include "upmpd.hxx"
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#include "upmpdutils.hxx"
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#include "httpfs.hxx"
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using namespace std;
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using namespace UPnPP;
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// The description XML document is the first thing downloaded by
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// clients and tells them what services we export, and where to find
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// them. The base data is in /usr/shared/upmpdcli/description.xml, it
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// has a number of substitutable fields for optional data, like the
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// description of OpenHome services
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static string ohDesc(
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Product:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Product</serviceId>"
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" <SCPDURL>/upmpd/OHProduct.xml</SCPDURL>"
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" <controlURL>/ctl/OHProduct</controlURL>"
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" <eventSubURL>/evt/OHProduct</eventSubURL>"
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"</service>"
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Info:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Info</serviceId>"
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" <SCPDURL>/upmpd/OHInfo.xml</SCPDURL>"
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" <controlURL>/ctl/OHInfo</controlURL>"
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" <eventSubURL>/evt/OHInfo</eventSubURL>"
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"</service>"
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Time:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Time</serviceId>"
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" <SCPDURL>/upmpd/OHTime.xml</SCPDURL>"
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" <controlURL>/ctl/OHTime</controlURL>"
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" <eventSubURL>/evt/OHTime</eventSubURL>"
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"</service>"
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Volume:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Volume</serviceId>"
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" <SCPDURL>/upmpd/OHVolume.xml</SCPDURL>"
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" <controlURL>/ctl/OHVolume</controlURL>"
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" <eventSubURL>/evt/OHVolume</eventSubURL>"
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"</service>"
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Playlist:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Playlist</serviceId>"
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" <SCPDURL>/upmpd/OHPlaylist.xml</SCPDURL>"
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" <controlURL>/ctl/OHPlaylist</controlURL>"
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" <eventSubURL>/evt/OHPlaylist</eventSubURL>"
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"</service>"
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);
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// We only advertise the Openhome Receiver service if the sc2mpd
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// songcast-to-mpd gateway command is available
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static string ohDescReceive(
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"<service>"
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" <serviceType>urn:av-openhome-org:service:Receiver:1</serviceType>"
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" <serviceId>urn:av-openhome-org:serviceId:Receiver</serviceId>"
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" <SCPDURL>/upmpd/OHReceiver.xml</SCPDURL>"
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" <controlURL>/ctl/OHReceiver</controlURL>"
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" <eventSubURL>/evt/OHReceiver</eventSubURL>"
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"</service>"
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);
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static const string iconDesc(
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"<iconList>"
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" <icon>"
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" <mimetype>image/png</mimetype>"
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" <width>64</width>"
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" <height>64</height>"
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" <depth>32</depth>"
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" <url>/upmpd/icon.png</url>"
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" </icon>"
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"</iconList>"
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);
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static const string presDesc(
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"<presentationURL>/upmpd/presentation.html</presentationURL>"
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);
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// The base XML description files. !Keep description.xml first!
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static vector<const char *> xmlfilenames =
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{
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/* keep first */ "description.xml", /* keep first */
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"RenderingControl.xml", "AVTransport.xml", "ConnectionManager.xml",
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};
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// Optional OpenHome service description files
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static vector<const char *> ohxmlfilenames =
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{
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"OHProduct.xml", "OHInfo.xml", "OHTime.xml", "OHVolume.xml",
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"OHPlaylist.xml",
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};
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/** Read protocol info file. This contains the connection manager
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* protocol info data
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*
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* We strip white-space from beginning/ends of lines, and allow
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* #-started comments (on a line alone only, comments after data not allowed).
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*/
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static bool read_protocolinfo(const string& fn, string& out)
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{
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ifstream input;
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input.open(fn, ios::in);
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if (!input.is_open()) {
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return false;
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}
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bool eof = false;
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for (;;) {
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string line;
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getline(input, line);
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if (!input.good()) {
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if (input.bad()) {
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return false;
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}
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// Must be eof ? But maybe we have a partial line which
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// must be processed. This happens if the last line before
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// eof ends with a backslash, or there is no final \n
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eof = true;
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}
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trimstring(line, " \t\n\r");
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if (line[0] == '#')
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continue;
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out += line;
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if (eof)
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break;
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}
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return true;
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}
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// Read and setup our (mostly XML) data to make it available from the
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// virtual directory
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bool initHttpFs(unordered_map<string, VDirContent>& files,
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const string& datadir,
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const string& UUID, const string& friendlyname,
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bool openhome, const string& iconpath,
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const string& presentationhtml)
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{
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if (openhome) {
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if (!g_sc2mpd_path.empty()) {
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ohxmlfilenames.push_back("OHReceiver.xml");
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}
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xmlfilenames.insert(xmlfilenames.end(), ohxmlfilenames.begin(),
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ohxmlfilenames.end());
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}
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string protofile(path_cat(datadir, "protocolinfo.txt"));
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if (!read_protocolinfo(protofile, g_protocolInfo)) {
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LOGFAT("Failed reading protocol info from " << protofile << endl);
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return false;
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}
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string reason;
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string icondata;
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if (!iconpath.empty()) {
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if (!file_to_string(iconpath, icondata, &reason)) {
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LOGERR("Failed reading " << iconpath << " : " << reason << endl);
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}
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}
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string presentationdata;
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if (!presentationhtml.empty()) {
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if (!file_to_string(presentationhtml, presentationdata, &reason)) {
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LOGERR("Failed reading " << iconpath << " : " << reason << endl);
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}
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}
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string dir("/upmpd/");
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for (unsigned int i = 0; i < xmlfilenames.size(); i++) {
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string filename = path_cat(datadir, xmlfilenames[i]);
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string data;
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if (!file_to_string(filename, data, &reason)) {
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LOGFAT("Failed reading " << filename << " : " << reason << endl);
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return false;
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}
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if (i == 0) {
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// Special for description: set UUID and friendlyname
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data = regsub1("@UUID@", data, UUID);
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data = regsub1("@FRIENDLYNAME@", data, friendlyname);
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if (openhome) {
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if (!g_sc2mpd_path.empty()) {
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ohDesc += ohDescReceive;
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}
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data = regsub1("@OPENHOME@", data, ohDesc);
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} else {
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data = regsub1("@OPENHOME@", data, "");
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}
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if (!icondata.empty())
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data = regsub1("@ICONLIST@", data, iconDesc);
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else
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data = regsub1("@ICONLIST@", data, "");
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if (!presentationdata.empty())
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data = regsub1("@PRESENTATION@", data, presDesc);
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else
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data = regsub1("@PRESENTATION@", data, "");
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}
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files.insert(pair<string, VDirContent>
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(dir + xmlfilenames[i],
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VDirContent(data, "application/xml")));
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}
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if (!icondata.empty()) {
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files.insert(pair<string, VDirContent>
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(dir + "icon.png",
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VDirContent(icondata, "image/png")));
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}
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if (!presentationdata.empty()) {
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files.insert(pair<string, VDirContent>
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(dir + "presentation.html",
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VDirContent(presentationdata, "text/html")));
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}
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return true;
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}
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