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58 lines
1.4 KiB
58 lines
1.4 KiB
3 years ago
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using UnityEngine;
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#if UNITY_2017_3_OR_NEWER
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using UnityEngine.Networking;
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#endif
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namespace ZenFulcrum.EmbeddedBrowser {
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/**
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* WebResources implementation that grabs resources directly from Assets/../BrowserAssets.
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*/
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class EditorWebResources : WebResources {
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protected string basePath;
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public EditorWebResources() {
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//NB: If you try to read Application.dataPath later you may not be on the main thread and it won't work.
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basePath = Path.GetDirectoryName(Application.dataPath) + "/BrowserAssets";
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}
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/// <summary>
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/// Looks for "../asdf", "asdf/..\asdf", etc.
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/// </summary>
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private readonly Regex matchDots = new Regex(@"(^|[/\\])\.[2,]($|[/\\])");
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public override void HandleRequest(int id, string url) {
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var parsedURL = new Uri(url);
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#if UNITY_2017_3_OR_NEWER
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var path = UnityWebRequest.UnEscapeURL(parsedURL.AbsolutePath);
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#else
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var path = WWW.UnEscapeURL(parsedURL.AbsolutePath);
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#endif
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if (matchDots.IsMatch(path)) {
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SendError(id, "Invalid path", 400);
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return;
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}
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var file = new FileInfo(Application.dataPath + "/../BrowserAssets/" + path);
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if (!file.Exists) {
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SendError(id, "Not found", 404);
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return;
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}
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//fixme: send 404 if file capitalization doesn't match. (Unfortunately, not a quick one-liner)
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SendFile(id, file);
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}
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}
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}
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