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Quellcode-Bibliothek test_data_uri.htmlSprache: HTML |
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<html> <head> <title>Tests for Data URI</title> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"> <script src="/tests/SimpleTest/SimpleTest.js"></script> <script src="/tests/SimpleTest/EventUtils.js"></script> <style> @font-face { font-family: 'DataFont'; src: url(data:font/opentype;base64,AAEAAAANAIAAAwBQRkZUTU6u6MkAAAXcAAAAHE9TLzJWYW } </style> <script> SimpleTest.waitForExplicitFinish(); SpecialPowers.setBoolPref("security.data_uri.block_toplevel_data_uri_navigations SimpleTest.registerCleanupFunction(() => { SpecialPowers.clearUserPref("security.data_uri.block_toplevel_data_uri_navigatio }); function imgListener(img) { return new Promise((resolve, reject) => { img.addEventListener("load", () => resolve()); img.addEventListener("error", () => reject()); }); } function runTests() { var iframe = document.getElementById("iframe"); iframe.src="data:text/html,hello"; let p1 = new Promise((resolve, reject) => { iframe.onload = function() { ok(SpecialPowers.wrap(iframe).contentDocument.nodePrincipal.isNullPrincipal, "iframe should have NullPrincipal."); resolve(); } }); var iframe1 = document.getElementById("iframe1"); iframe1.src="data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%18%00%00 let p2 = new Promise((resolve, reject) => { iframe1.onload = function() { ok(SpecialPowers.wrap(iframe1).contentDocument.nodePrincipal.isNullPrincipal, "iframe1 should have NullPrincipal."); resolve(); } }); var canvas = document.getElementById('canvas'); var ctx = canvas.getContext('2d'); ctx.fillRect(0, 0, canvas.height, canvas.width); ctx.fillStyle = '#000'; var data = canvas.toDataURL('image/png'); var img = new Image(); img.src = data; let p3 = imgListener(img).then(() => { dump("img onload\n"); ctx.drawImage(img, 0, 0); return new Promise((resolve, reject) => { try { ctx.getImageData(0, 0, 1, 1); ok(true, "data:image should be same origin."); resolve(); } catch (e) { ok(false, "data:image is cross-origin."); reject(); }}); }).then(() => { ctx.clearRect(0, 0, canvas.height, canvas.width); ctx.drawImage(document.getElementById('img'), 0, 0); return new Promise((resolve, reject) => { try { canvas.toDataURL(); ok(true, "data:image should be same origin."); resolve(); } catch (e) { ok(false, "data:image is cross-origin."); reject(); }}); }).then(() => { var win = window.open("data:text/html,<script>parent.opener.postMessage('ok', '*');<\/s return new Promise(resolve => { window.onmessage = function (evt) { is(evt.origin, "null", "The origin of data:text/html should be null."); win.close(); resolve(); }}); }); var obj_doc = document.getElementById("obj_doc"); obj_doc.data="data:text/html,%3Cbody%3E%3Cbutton%3EChild%3C/button%3E%3C/body%3E let p4 = new Promise((resolve, reject) => { obj_doc.onload = function() { ok(SpecialPowers.wrap(obj_doc).contentDocument.nodePrincipal.isNullPrincipal, "obj_doc.document should have NullPrincipal."); resolve(); } }); var obj_svg = document.getElementById("obj_svg"); obj_svg.data='data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewbox="0 let p5 = new Promise((resolve, reject) => { obj_svg.onload = function() { ok(SpecialPowers.wrap(obj_svg).contentDocument.nodePrincipal.isNullPrincipal, "obj_svg.contentDocument should have NullPrincipal."); ok(SpecialPowers.wrap(obj_svg).getSVGDocument().nodePrincipal.isNullPrincipal, "obj_svg.getSVGDocument() should have NullPrincipal."); resolve(); } }); // Test if data:stylesheet is considered same origin. let p6 = new Promise((resolve, reject) => { // 1. Dynamically include a css by inserting a <link> tag. let link = document.createElement('link'); link.rel = 'stylesheet'; link.href = "data:text/css,.green-text{color:rgb(0, 255, 0)}"; link.onload = function() { let dataStyleSheet; for (let i = 0; i < document.styleSheets.length; i++) { let sheet = document.styleSheets[i]; if (sheet.href === link.href) { dataStyleSheet = sheet; break; } } ok(dataStyleSheet, "Should have found data:stylesheet"); // 2. Try to access the rule. If data:stylesheet is not considered // same origin, an exception will be thrown. try { let rule = dataStyleSheet.cssRules; ok(true, "data:stylesheet is considered same origin."); } catch (ex) { ok(false, "data:stylesheet is NOT considered same origin: " + ex); } resolve(); }; document.head.appendChild(link); }); // Test if data:font is same-origin. let p7 = new Promise((resolve, reject) => { let text = document.createElement('p'); // Cross-domain font will not load according to [1] so we try to apply // data:font to this text and see if the font can be loaded. // [1] https://www.w3.org/TR/css-fonts-3/#same-origin-restriction text.style = 'font-family: DataFont'; text.innerHTML = "This text should trigger 'TestFont' to load."; document.body.appendChild(text); document.fonts.ready.then(fontFaces => { is(fontFaces.size, 1, "should FontFace entry for data:font"); fontFaces.forEach(fontFace => { is(fontFace.status, "loaded", "data:font should be same-origin"); }); resolve(); }, _ => { ok(false, "data:font is not same-origin."); reject(); }); }); Promise.all([p1, p2, p3, p4, p5, p6, p7]).then(() => { SimpleTest.finish(); }).catch((e) => { ok(false, "throwing " + e); SimpleTest.finish(); }); } </script> <body onload="runTests()"> <img style="width: 100px; height: 100px;" src="data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%18%00%00%00%18%0 id="img"> <iframe id="iframe"></iframe> <iframe id="iframe1" ></iframe> <canvas id="canvas" class="output" width="100" height="50"></canvas> <object id="obj_doc"></object> <object id="obj_svg"></object> </body> </html>
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2026-05-26