95 lines
3.1 KiB
JavaScript
95 lines
3.1 KiB
JavaScript
(function () {
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"use strict";
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var BAD_HOST = ["HOST", "EXAMPLE"].join("-");
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var DEFAULT_HOST = "SHARKON2025";
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function decode(value) {
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try {
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return decodeURIComponent(value);
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} catch (error) {
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return value;
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}
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}
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function hostFromHash() {
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var hash = window.location.hash || "";
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var match = hash.match(/#?\/activity\/([^/]+)/i) || hash.match(/#?\/trends\/([^/?#]+)/i);
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var host = match && match[1] ? decode(match[1]) : "";
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if (host && host !== BAD_HOST && host !== "unknown" && host !== "undefined") return host;
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return DEFAULT_HOST;
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}
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function rewriteText(value) {
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if (typeof value !== "string" || value.indexOf(BAD_HOST) === -1) return value;
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return value.split(BAD_HOST).join(hostFromHash());
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}
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function sanitizeStorage(storage) {
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if (!storage) return;
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try {
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for (var i = 0; i < storage.length; i += 1) {
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var key = storage.key(i);
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if (!key) continue;
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var value = storage.getItem(key);
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var next = rewriteText(value);
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if (next !== value) storage.setItem(key, next);
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}
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if (storage.landingpage && storage.landingpage.indexOf(BAD_HOST) !== -1) {
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storage.landingpage = "/activity/" + hostFromHash() + "/view/";
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}
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} catch (error) {
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}
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}
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function sanitizeRoute() {
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var hash = window.location.hash || "";
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var next = rewriteText(hash);
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if (next !== hash) window.location.replace(next);
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}
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sanitizeStorage(window.localStorage);
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sanitizeStorage(window.sessionStorage);
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sanitizeRoute();
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var originalFetch = window.fetch;
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if (typeof originalFetch === "function" && !originalFetch.__awHostSanitizePatched) {
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var patchedFetch = function (input, init) {
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var nextInput = input;
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var nextInit = init;
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try {
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if (typeof nextInput === "string") {
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nextInput = rewriteText(nextInput);
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} else if (nextInput && typeof nextInput.url === "string") {
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var nextUrl = rewriteText(nextInput.url);
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if (nextUrl !== nextInput.url && typeof Request === "function") {
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nextInput = new Request(nextUrl, nextInput);
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}
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}
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if (nextInit && typeof nextInit.body === "string") {
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nextInit = Object.assign({}, nextInit, { body: rewriteText(nextInit.body) });
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}
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} catch (error) {
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}
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return originalFetch.call(this, nextInput, nextInit);
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};
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patchedFetch.__awHostSanitizePatched = true;
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window.fetch = patchedFetch;
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}
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if (window.XMLHttpRequest && window.XMLHttpRequest.prototype && !window.XMLHttpRequest.prototype.__awHostSanitizePatched) {
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var proto = window.XMLHttpRequest.prototype;
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var originalOpen = proto.open;
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var originalSend = proto.send;
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proto.open = function (method, url) {
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if (typeof url === "string") arguments[1] = rewriteText(url);
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return originalOpen.apply(this, arguments);
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};
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proto.send = function (body) {
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if (typeof body === "string") body = rewriteText(body);
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return originalSend.call(this, body);
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};
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proto.__awHostSanitizePatched = true;
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}
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})();
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