93 lines
3.3 KiB
C#
93 lines
3.3 KiB
C#
using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Caching.Memory;
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using Shared;
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using System;
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using System.IO;
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namespace WatchTogether
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{
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/// <summary>
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/// Static file service: the Lampa plugin (adapted lparty.js) and the web
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/// guest page (adapted lparty-web), with lampac hosts injected as
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/// placeholders. The relay itself lives at /c/ (RelayStartupFilter).
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/// </summary>
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[Route("watchtogether")]
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public class WatchTogetherController : BaseController
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{
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private bool CheckAuth()
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{
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if (ModInit.conf.allow_anonymous) return true;
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if (!CoreInit.conf.accsdb.enable) return true;
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return requestInfo.user != null;
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}
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[AllowAnonymous]
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[HttpGet]
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[Route("/watchtogether.js")]
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public ActionResult GetPlugin()
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{
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if (!CheckAuth()) return StatusCode(401);
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return ServeFile("plugin.js", "application/javascript; charset=utf-8", js =>
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js.Replace("{relay}", RelayAddress())
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.Replace("{invite}", InviteAddress()));
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}
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[AllowAnonymous]
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[HttpGet]
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[Route("/watch_together")]
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[Route("/watch_together/{file}")]
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public ActionResult GetWebPlayer(string file)
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{
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if (!CheckAuth()) return StatusCode(401);
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switch (file ?? string.Empty)
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{
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case "":
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case "index.html":
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return ServeFile("web/index.html", "text/html; charset=utf-8", html =>
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html.Replace("{relay}", RelayAddress()));
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case "lparty-web.js":
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return ServeFile("web/lparty-web.js", "application/javascript; charset=utf-8", js =>
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js.Replace("{relay}", RelayAddress()));
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case "i18n.js":
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return ServeFile("web/i18n.js", "application/javascript; charset=utf-8", null);
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case "names.js":
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return ServeFile("web/names.js", "application/javascript; charset=utf-8", null);
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default:
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return NotFound();
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}
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}
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string RelayAddress()
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{
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return (host.StartsWith("https", StringComparison.Ordinal) ? "wss://" : "ws://") +
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host.Replace("https://", "").Replace("http://", "").TrimEnd('/') + "/wt/c/";
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}
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string InviteAddress()
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{
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return host.TrimEnd('/') + "/watch_together/";
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}
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ActionResult ServeFile(string name, string contentType, Func<string, string> transform)
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{
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string path = Path.Combine(ModInit.modpath, name);
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if (!System.IO.File.Exists(path))
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return Content("<html><body><h2>" + name + " not found</h2></body></html>", "text/html; charset=utf-8");
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long mtime = System.IO.File.GetLastWriteTimeUtc(path).Ticks;
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string memKey = "watchtogether:file:" + name + ":" + mtime;
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if (!memoryCache.TryGetValue(memKey, out string raw))
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{
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raw = System.IO.File.ReadAllText(path);
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memoryCache.Set(memKey, raw, TimeSpan.FromMinutes(10));
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}
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string result = transform != null ? transform(raw) : raw;
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return Content(result, contentType);
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}
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}
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}
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