private static async Task OnViewXML(OwinEnvironment ctx, CancellationToken cancel_token)
{
var data = BuildViewXml(ctx.GetPeerCast());
ctx.Response.StatusCode = HttpStatusCode.OK;
ctx.Response.ContentType = "text/xml;charset=utf-8";
ctx.Response.ContentLength = data.LongLength;
await ctx.Response.WriteAsync(data, cancel_token).ConfigureAwait(false);
}
private static async Task<Channel> GetChannelAsync(OwinEnvironment ctx, ParsedRequest req, CancellationToken ct)
{
var tip = ctx.Request.Query.Get("tip");
var channel = ctx.GetPeerCast().RequestChannel(req.ChannelId, OutputStreamBase.CreateTrackerUri(req.ChannelId, tip), true);
if (channel==null) {
return null;
}
using (var cts=CancellationTokenSource.CreateLinkedTokenSource(ct)) {
cts.CancelAfter(10000);
await channel.WaitForReadyContentTypeAsync(cts.Token).ConfigureAwait(false);
}
return channel;
}
private static async Task InvokeIndexTXT(OwinEnvironment ctx)
{
var cancel_token = ctx.Request.CallCancelled;
ctx.Response.ContentType = "text/plain;charset=utf-8";
var acinfo = ctx.GetAccessControlInfo();
if (acinfo?.AuthenticationKey != null)
{
ctx.Response.Headers.Add("Set-Cookie", $"auth={acinfo.AuthenticationKey.GetToken()}; Path=/");
}
var peercast = ctx.GetPeerCast();
var indextxt = String.Join("\r\n", peercast.Channels.Select(c => BuildIndexTXTEntry(peercast, c)));
await ctx.Response.WriteAsync(indextxt, cancel_token).ConfigureAwait(false);
}
private static async Task OnStop(OwinEnvironment ctx, CancellationToken cancel_token)
{
var peercast = ctx.GetPeerCast();
var channel = FindChannelFromQuery(ctx);
if (channel != null)
{
peercast.CloseChannel(channel);
ctx.Response.StatusCode = HttpStatusCode.OK;
await ctx.Response.WriteAsync("OK", cancel_token).ConfigureAwait(false);
}
else
{
ctx.Response.StatusCode = HttpStatusCode.NotFound;
await ctx.Response.WriteAsync("Channel NotFound", cancel_token).ConfigureAwait(false);
}
}
private static Channel FindChannelFromQuery(OwinEnvironment ctx)
{
var peercast = ctx.GetPeerCast();
var idstr = ctx.Request.Query.Get("id");
if (peercast != null && idstr != null)
{
var md = System.Text.RegularExpressions.Regex.Match(idstr, @"([A-Fa-f0-9]{32})(\.\S+)?");
var channel_id = Guid.Empty;
if (md.Success)
{
try {
channel_id = new Guid(md.Groups[1].Value);
}
catch (Exception) {
}
}
return(peercast.Channels.FirstOrDefault(c => c.ChannelID == channel_id));
}
else
{
return(null);
}
}
