/// <summary>
/// Action: Browse
/// </summary>
/// <param name="objectId">Associated State Variable: A_ARG_TYPE_ObjectID</param>
/// <param name="browseFlag">Associated State Variable: A_ARG_TYPE_BrowseFlag</param>
/// <param name="filter">Associated State Variable: A_ARG_TYPE_Filter</param>
/// <param name="startingIndex">Associated State Variable: A_ARG_TYPE_Index</param>
/// <param name="requestedCount">Associated State Variable: A_ARG_TYPE_Count</param>
/// <param name="sortCriteria">Associated State Variable: A_ARG_TYPE_SortCriteria</param>
/// <param name="result">Associated State Variable: A_ARG_TYPE_Result</param>
/// <param name="numberReturned">Associated State Variable: A_ARG_TYPE_Count</param>
/// <param name="totalMatches">Associated State Variable: A_ARG_TYPE_Count</param>
/// <param name="updateID">Associated State Variable: A_ARG_TYPE_UpdateID</param>
public override void Browse(String objectId, Enum_A_ARG_TYPE_BrowseFlag browseFlag, String filter, UInt32 startingIndex,
UInt32 requestedCount, String sortCriteria, out String result, out UInt32 numberReturned, out UInt32 totalMatches,
out UInt32 updateID)
{
updateID = 0;
numberReturned = 0;
totalMatches = 0;
StringBuilder sb = new StringBuilder();
sb.AppendLine(@"<DIDL-Lite xmlns:dc=""http://purl.org/dc/elements/1.1/"" " +
@"xmlns:upnp=""urn:schemas-upnp-org:metadata-1-0/upnp/"" " +
@"xmlns=""urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"">");
try
{
FolderBase folder = (objectId == "0" || objectId == "-1") ? new MainEntry() : GetFolder(objectId);
var userAgent = GetUserAgent();
switch (browseFlag)
{
case Enum_A_ARG_TYPE_BrowseFlag.BROWSEDIRECTCHILDREN:
bool isFreeboxV5 = (userAgent == UserAgent.FreeboxV5);
if (isFreeboxV5)
{
// In order to enchain the audio files on the Freebox V5
IPAddress address = GetCaller().Address;
if (Files.ContainsKey(address))
{
Files.Remove(address);
}
}
FolderBase subFolder;
BrowseResult browseResult;
bool exit = false;
do
{
// Browse the folder
browseResult = folder.Browse(startingIndex, requestedCount, userAgent);
if (browseResult != null && browseResult.TotalCount == 1 && browseResult.Entries.Count > 0)
{
// If there is only 1 folder, we will browse the subfolder
subFolder = browseResult.Entries[0] as FolderBase;
if (subFolder == null)
{
exit = true;
}
else
{
folder = subFolder;
}
}
else
{
exit = true;
}
}while (!exit);
if (browseResult != null)
{
bool v6Workaround = (userAgent == UserAgent.FreeboxV6 && !folder.UsePathAsId && String.IsNullOrEmpty(folder.Path));
string line;
string dcTitle = "<dc:title>";
var format = dcTitle + Podcast.GetLinesNumberingFormat(browseResult.TotalCount);
int i = 1;
foreach (var entry in browseResult.Entries)
{
if (entry is Shutdown && Application.IsMono)
{
// Unable to shutdown on Linux, Mac
browseResult.TotalCount -= 1;
continue;
}
line = entry.ToString(GetReceiver(), objectId, userAgent);
if (line == null)
{
browseResult.TotalCount -= 1;
continue;
}
if (v6Workaround)
{
// To keep the order of the folders
line = line.Replace(dcTitle, String.Format(format, i + startingIndex, String.Empty));
i += 1;
}
sb.AppendLine(line);
numberReturned += 1;
AddToFileList(entry, isFreeboxV5);
}
totalMatches = (uint)browseResult.TotalCount;
}
break;
default:
sb.AppendLine((folder ?? (Entry) new Entries.File()
{
Path = HttpUtility.UrlDecode(objectId)
}).ToString(GetReceiver(), "-1", userAgent));
numberReturned = 1;
totalMatches = 1;
break;
}
}
catch (Exception ex)
{
Utils.WriteException(ex);
}
sb.Append(@"</DIDL-Lite>");
result = sb.ToString();
}
