45 lines
1 KiB
JavaScript
45 lines
1 KiB
JavaScript
"use strict";
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const IMG_BYTES = atob(
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"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAA" +
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"DUlEQVQImWNgY2P7DwABOgESJhRQtgAAAABJRU5ErkJggg=="
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);
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function handleRequest(request, response) {
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response.processAsync();
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getObjectState("context", function (obj) {
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let ctx;
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if (obj == null) {
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ctx = {
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QueryInterface: function (iid) {
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if (iid.equals(Ci.nsISupports)) {
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return this;
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}
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throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
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},
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};
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ctx.wrappedJSObject = ctx;
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ctx.promise = new Promise(resolve => {
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ctx.resolve = resolve;
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});
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setObjectState("context", ctx);
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} else {
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ctx = obj.wrappedJSObject;
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}
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Promise.resolve(ctx).then(next);
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});
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function next(ctx) {
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if (request.queryString.indexOf("continue") >= 0) {
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ctx.resolve();
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}
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ctx.promise.then(() => {
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response.setHeader("Content-Type", "image/png");
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response.write(IMG_BYTES);
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response.finish();
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});
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}
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}
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