public async Task Invoke(OwinEnvironment ctx)
{
var cancel_token = ctx.Request.CallCancelled;
var localpath = Path.GetFullPath(CombinePath(LocalPath, ctx.Request.Path));
if (Directory.Exists(localpath))
{
localpath = Path.Combine(localpath, "index.html");
if (!File.Exists(localpath))
{
ctx.Response.StatusCode = HttpStatusCode.Forbidden;
return;
}
}
if (File.Exists(localpath))
{
var contents = File.ReadAllBytes(localpath);
var content_desc = GetFileDesc(Path.GetExtension(localpath));
ctx.Response.ContentType = content_desc.MimeType;
ctx.Response.ContentLength = contents.LongLength;
var acinfo = ctx.GetAccessControlInfo();
if (acinfo?.AuthenticationKey != null)
{
ctx.Response.Headers.Add("Set-Cookie", $"auth={acinfo.AuthenticationKey.GetToken()}; Path=/");
}
await ctx.Response.WriteAsync(contents, cancel_token).ConfigureAwait(false);
}
else
{
ctx.Response.StatusCode = HttpStatusCode.NotFound;
}
}
public async Task Invoke(OwinEnvironment ctx)
{
var cancel_token = ctx.Request.CallCancelled;
ctx.Response.ContentType = "application/javascript";
ctx.Response.ContentLength = contents.LongLength;
var acinfo = ctx.GetAccessControlInfo();
if (acinfo?.AuthenticationKey != null)
{
ctx.Response.Headers.Add("Set-Cookie", $"auth={acinfo.AuthenticationKey.GetToken()}; Path=/");
}
await ctx.Response.WriteAsync(contents, cancel_token).ConfigureAwait(false);
}
private static async Task InvokeRedirect(OwinEnvironment ctx)
{
var cancel_token = ctx.Request.CallCancelled;
ctx.Response.ContentType = "text/plain;charset=utf-8";
ctx.Response.Headers.Set("Location", "/html/index.html");
var acinfo = ctx.GetAccessControlInfo();
if (acinfo?.AuthenticationKey != null)
{
ctx.Response.Headers.Add("Set-Cookie", $"auth={acinfo.AuthenticationKey.GetToken()}; Path=/");
}
ctx.Response.StatusCode = HttpStatusCode.Moved;
await ctx.Response.WriteAsync("Moving...", cancel_token).ConfigureAwait(false);
}
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 async Task Invoke(OwinEnvironment ctx)
{
var cancel_token = ctx.Request.CallCancelled;
var channel_list = await GetYPChannelsAsync(cancel_token).ConfigureAwait(false);
var contents = System.Text.Encoding.UTF8.GetBytes(ChannelsToIndex(channel_list));
ctx.Response.ContentType = "text/plain;charset=utf-8";
ctx.Response.ContentLength = contents.LongLength;
var acinfo = ctx.GetAccessControlInfo();
if (acinfo?.AuthenticationKey != null)
{
ctx.Response.Headers.Add("Set-Cookie", $"auth={acinfo.AuthenticationKey.GetToken()}; Path=/");
}
await ctx.Response.WriteAsync(contents, cancel_token).ConfigureAwait(false);
}
private async Task PlayListHandler(OwinEnvironment ctx, ParsedRequest req, Channel channel)
{
var ct = ctx.Request.CallCancelled;
var session = req.Session;
if (String.IsNullOrWhiteSpace(session))
{
var source = new IPEndPoint(IPAddress.Parse(ctx.Request.RemoteIpAddress), ctx.Request.RemotePort ?? 0).ToString();
using (var md5 = System.Security.Cryptography.MD5.Create()) {
session =
md5
.ComputeHash(System.Text.Encoding.ASCII.GetBytes(source))
.Aggregate(new System.Text.StringBuilder(), (builder, v) => builder.Append(v.ToString("X2")))
.ToString();
}
var location = new UriBuilder(ctx.Request.Uri);
if (String.IsNullOrEmpty(location.Query))
{
location.Query = $"session={session}";
}
else
{
location.Query = location.Query.Substring(1) + $"&session={session}";
}
ctx.Response.Redirect(location.Uri.ToString());
return;
}
var pls = new M3U8PlayList(ctx.Request.Query.Get("scheme"), channel);
ctx.Response.StatusCode = HttpStatusCode.OK;
ctx.Response.Headers.Add("Cache-Control", "private");
ctx.Response.Headers.Add("Cache-Disposition", "inline");
ctx.Response.Headers.Add("Access-Control-Allow-Origin", "*");
ctx.Response.ContentType = pls.MIMEType;
using (var subscription = HLSChannelSink.GetSubscription(this, channel, ctx, session)) {
subscription.Stopped.ThrowIfCancellationRequested();
byte[] body;
try {
var baseuri = new Uri(
new Uri(ctx.Request.Uri.GetComponents(UriComponents.SchemeAndServer | UriComponents.UserInfo, UriFormat.UriEscaped)),
"hls/");
var acinfo = ctx.GetAccessControlInfo();
using (var cts = CancellationTokenSource.CreateLinkedTokenSource(ct, subscription.Stopped)) {
cts.CancelAfter(10000);
if (acinfo.AuthorizationRequired)
{
var parameters = new Dictionary <string, string>()
{
{ "auth", acinfo.AuthenticationKey.GetToken() },
{ "session", subscription.SessionId },
};
body = await pls.CreatePlayListAsync(baseuri, parameters, subscription.Segmenter, cts.Token).ConfigureAwait(false);
}
else
{
var parameters = new Dictionary <string, string>()
{
{ "session", subscription.SessionId },
};
body = await pls.CreatePlayListAsync(baseuri, parameters, subscription.Segmenter, cts.Token).ConfigureAwait(false);
}
}
}
catch (OperationCanceledException) {
ctx.Response.StatusCode = HttpStatusCode.GatewayTimeout;
return;
}
ctx.Response.StatusCode = HttpStatusCode.OK;
await ctx.Response.WriteAsync(body, ct).ConfigureAwait(false);
}
}
private static async Task PlayListHandler(OwinEnvironment ctx)
{
var ct = ctx.Request.CallCancelled;
var req = ParsedRequest.Parse(ctx);
if (!req.IsValid) {
ctx.Response.StatusCode = req.Status;
return;
}
Channel channel;
try {
channel = await GetChannelAsync(ctx, req, ct).ConfigureAwait(false);
}
catch (TaskCanceledException) {
ctx.Response.StatusCode = HttpStatusCode.GatewayTimeout;
return;
}
if (channel==null) {
ctx.Response.StatusCode = HttpStatusCode.NotFound;
return;
}
var fmt = ctx.Request.Query.Get("pls") ?? req.Extension;
//m3u8のプレイリストを要求された時はHLS用のパスに転送する
if (fmt?.ToLowerInvariant()=="m3u8") {
var location = new UriBuilder(ctx.Request.Uri);
location.Path = $"/hls/{req.ChannelId:N}";
if (location.Query.Contains("pls=m3u8")) {
var queries = location.Query.Substring(1).Split('&').Where(seg => seg!="pls=m3u8").ToArray();
if (queries.Length>0) {
location.Query = String.Join("&", queries);
}
else {
location.Query = null;
}
}
ctx.Response.Redirect(HttpStatusCode.MovedPermanently, location.Uri.ToString());
return;
}
var scheme = ctx.Request.Query.Get("scheme");
var pls = CreatePlaylist(channel, fmt, scheme);
ctx.Response.StatusCode = HttpStatusCode.OK;
ctx.Response.Headers.Add("Cache-Control", "private");
ctx.Response.Headers.Add("Cache-Disposition", "inline");
ctx.Response.Headers.Add("Access-Control-Allow-Origin", "*");
ctx.Response.ContentType = pls.MIMEType;
byte[] body;
try {
var baseuri = new Uri(
new Uri(ctx.Request.Uri.GetComponents(UriComponents.SchemeAndServer | UriComponents.UserInfo, UriFormat.UriEscaped)),
"stream/");
var acinfo = ctx.GetAccessControlInfo();
using (var cts=CancellationTokenSource.CreateLinkedTokenSource(ct)) {
cts.CancelAfter(10000);
if (acinfo.AuthorizationRequired) {
var parameters = new Dictionary<string, string>() {
{ "auth", acinfo.AuthenticationKey.GetToken() },
};
body = await pls.CreatePlayListAsync(baseuri, parameters, cts.Token).ConfigureAwait(false);
}
else {
body = await pls.CreatePlayListAsync(baseuri, Enumerable.Empty<KeyValuePair<string,string>>(), cts.Token).ConfigureAwait(false);
}
}
}
catch (OperationCanceledException) {
ctx.Response.StatusCode = HttpStatusCode.GatewayTimeout;
return;
}
ctx.Response.StatusCode = HttpStatusCode.OK;
await ctx.Response.WriteAsync(body, ct).ConfigureAwait(false);
}