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Add more Trusted Types enforcement tests testing a source text transformed by the default policy.
This verifies that the source text transformed by the default policy is used for various steps of "prepare the script element": https://html.spec.whatwg.org/#prepare-the-script-element PR w3c/trusted-types#579 Differential Revision: https://phabricator.services.mozilla.com/D251456 bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1968383 gecko-commit: b40ba3e6cd668c9890ed7e4c6bdfdf2ee60cbcc4 gecko-reviewers: smaug
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‎trusted-types/script-enforcement-005.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/namespaces.js"></script>
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<script src="support/passthroughpolicy.js"></script>
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<script src="support/script-messages.js"></script>
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<link rel="help" href="https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-scripts">
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<link rel="help" href="https://html.spec.whatwg.org/#prepare-the-script-element">
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<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">
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<!-- This test covers the following step from the "prepare the script element"
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algorithm, verifying that "source text" is the one after application of
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the default policy: "If el has no src attribute, and source text is the
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empty string, then return." -->
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<div id="htmlContainer">
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<script id="scriptToCreateNonEmptyHTMLScript" type="unknown">;</script>
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</div>
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<svg id="svgContainer">
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<script id="scriptToCreateNonEmptySVGScript" type="unknown">;</script>
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</svg>
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<script>
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// Define a default policy that transforms empty script string to some source
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// logging a RUN message and other script strings to empty.
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trustedTypes.createPolicy("default", {
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createScript: (value, _, sink) => {
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window.log_message("CREATE_SCRIPT");
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window.log_message(sink);
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return value.length ? "" : LOG_RUN_MESSAGE;
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}
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});
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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// Current version of the specification requires the script text to change
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// in order to force a call to the default policy callback with sink
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// "HTMLScriptElement text". If the following PR is accepted, this could
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// be simplified to create_html_script_with_untrusted_source_text("").
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// https://github.com/w3c/trusted-types/pull/579
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let script = document.getElementById("scriptToCreateNonEmptyHTMLScript");
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script.remove();
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script.removeAttribute("type");
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script.firstChild.remove();
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htmlContainer.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "RUN"]);
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}, "Empty HTMLScriptElement is executed if the default policy makes it non-empty.");
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_html_script_with_untrusted_source_text(LOG_RUN_MESSAGE);
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htmlContainer.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text"]);
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}, "Non-empty HTMLScriptElement is not executed if the default policy makes it empty.");
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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// Note: Using create_html_script_with_untrusted_source_text("") may not
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// guarantee the script to be untrusted for implementations using a
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// script-based enforcement mechanism. So make sure we do modify the text.
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let script = document.getElementById("scriptToCreateNonEmptySVGScript");
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script.remove();
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script.removeAttribute("type");
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script.firstChild.remove();
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svgContainer.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "RUN"]);
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}, "Empty SVGScriptElement is executed if the default policy makes it non-empty.");
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_svg_script_with_untrusted_source_text(LOG_RUN_MESSAGE);
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svgContainer.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text"]);
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}, "Non-empty SVGScriptElement is not executed if the default policy makes it empty.");
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</script>

‎trusted-types/script-enforcement-006.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/namespaces.js"></script>
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<script src="support/passthroughpolicy.js"></script>
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<script src="support/script-messages.js"></script>
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<link rel="help" href="https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-scripts">
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<link rel="help" href="https://html.spec.whatwg.org/#prepare-the-script-element">
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<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
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<!-- This test covers the following step from the "prepare the script element"
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algorithm, verifying that "source text" is the one after application of
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the default policy: "If el does not have a src content attribute: ...
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Switch on el's type:" -->
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<div id="container"></div>
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<script>
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const logMessageModulePath = "./support/logMessage-module.sub.js";
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// Define a default policy that transforms the script's type to some valid
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// source content.
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trustedTypes.createPolicy("default", {
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createScript: (value, _, sink) => {
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window.log_message("CREATE_SCRIPT");
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window.log_message(sink);
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switch (value) {
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case "classic":
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return `window.log_message('CLASSIC');`;
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case "module":
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return `window.log_message('MODULE');`;
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case "importmap":
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return `{ "imports": { "${logMessageModulePath}?message=UNMAPPED": "${logMessageModulePath}?message=IMPORTMAP" }}`;
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}
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}
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});
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_html_script_with_untrusted_source_text("classic");
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script.setAttribute("type", "application/ecmascript");
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// Appending the script will log "CLASSIC".
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "CLASSIC"]);
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}, "Untrusted HTMLScriptElement with classic type uses the source text returned by the default policy.");
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// Firefox disallows import map after a module load, so place this promise
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// test before the module test.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1916277#c4
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_html_script_with_untrusted_source_text("importmap");
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script.setAttribute("type", "importmap");
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// Appending the script sets up an import map for logMessageModulePath.
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container.appendChild(script);
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// Importing logMessageModulePath will log message "IMPORTMAP"
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await import(`${logMessageModulePath}?message=UNMAPPED`);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "IMPORTMAP"]);
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}, "Untrusted HTMLScriptElement of importmap type uses the source text returned by the default policy.");
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_html_script_with_untrusted_source_text("module");
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script.setAttribute("type", "module");
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// Appending the script will log message "MODULE"
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "MODULE"]);
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}, "Untrusted HTMLScriptElement of module type uses the source text returned by the default policy.");
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</script>

‎trusted-types/script-enforcement-007.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/namespaces.js"></script>
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<script src="support/passthroughpolicy.js"></script>
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<script src="support/script-messages.js"></script>
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<link rel="help" href="https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-scripts">
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<link rel="help" href="https://html.spec.whatwg.org/#prepare-the-script-element">
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<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
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<!-- This is the same test as script-enforcement-006 but for SVGScriptElement. -->
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<svg id="container"></svg>
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<script>
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const logMessageModulePath = "./support/logMessage-module.sub.js";
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// Define a default policy that transforms the script's type to some valid
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// source content.
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trustedTypes.createPolicy("default", {
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createScript: (value, _, sink) => {
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window.log_message("CREATE_SCRIPT");
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window.log_message(sink);
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switch (value) {
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case "classic":
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return `window.log_message('CLASSIC');`;
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case "module":
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return `window.log_message('MODULE');`;
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case "importmap":
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return `{ "imports": { "${logMessageModulePath}?message=UNMAPPED": "${logMessageModulePath}?message=IMPORTMAP" }}`;
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}
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}
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});
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_svg_script_with_untrusted_source_text("classic");
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script.setAttribute("type", "application/ecmascript");
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// Appending the script will log "CLASSIC".
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "CLASSIC"]);
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}, "Untrusted SVGScriptElement with classic type uses the source text returned by the default policy.");
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// Firefox disallows import map after a module load, so place this promise
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// test before the module test.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1916277#c4
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_svg_script_with_untrusted_source_text("importmap");
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script.setAttribute("type", "importmap");
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// Appending the script sets up an import map for logMessageModulePath.
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container.appendChild(script);
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// Importing logMessageModulePath will log message "IMPORTMAP".
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await import(`${logMessageModulePath}?message=UNMAPPED`);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "IMPORTMAP"]);
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}, "Untrusted SVGScriptElement of importmap type uses the source text returned by the default policy.");
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_svg_script_with_untrusted_source_text("module");
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script.setAttribute("type", "module");
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// Appending the script will log message "MODULE".
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "MODULE"]);
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}, "Untrusted SVGScriptElement of module type uses the source text returned by the default policy.");
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</script>

‎trusted-types/script-enforcement-008.https.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/namespaces.js"></script>
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<script src="support/passthroughpolicy.js"></script>
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<script src="support/script-messages.js"></script>
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<link rel="help" href="https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-scripts">
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<link rel="help" href="https://html.spec.whatwg.org/#prepare-the-script-element">
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<link rel="help" href="https://w3c.github.io/webappsec-csp/#should-block-inline">
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<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
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<meta id="metaTagForScriptSrc" http-equiv="Content-Security-Policy" content="script-src 'nonce-script-messages' 'nonce-self' 'sha256-IpCtvKVFQbqDBhwCvQEsZoqgVXvAd6T2uRWd/Pz7FuI=' 'sha256-xanaWuoRdfLzI0+K8zpwr8eHi4RK2P6GglgCFXv0r00=' 'sha256-BPWjrQT1GMyyQ+6Fmycn7pSqh8L945ToMJ/nfGClLBc='">
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<!-- This test covers the following step from the "prepare the script element"
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algorithm, verifying that "source text" is the one after application of
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the default policy: "If el does not have a src content attribute, and the
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Should element's inline behavior be blocked by Content Security Policy?
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algorithm returns "Blocked" when given el, "script", and source text, then
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return." -->
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<div id="container"></div>
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<script nonce="self">
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const logMessageModulePath = "./support/logMessage-module.sub.js";
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// Define a default policy that transforms the script's type to some valid
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// source content.
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function scriptTypeToValue(value) {
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switch (value) {
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case "classic":
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return `window.log_message('CLASSIC');`;
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case "module":
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return `window.log_message('MODULE');`;
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case "importmap":
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return `{ "imports": { "${logMessageModulePath}?message=UNMAPPED": "${logMessageModulePath}?message=IMPORTMAP" }}`;
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}
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}
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trustedTypes.createPolicy("default", {
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createScript: (value, _, sink) => {
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window.log_message("CREATE_SCRIPT");
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window.log_message(sink);
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return scriptTypeToValue(value);
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}
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});
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promise_test(async t => {
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let classicHash = await base64_hash_for_inline_script(scriptTypeToValue("classic"), "SHA-256");
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let moduleHash = await base64_hash_for_inline_script(scriptTypeToValue("module"), "SHA-256");
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let importmapHash = await base64_hash_for_inline_script(scriptTypeToValue("importmap"), "SHA-256");
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let metaTagContent = document.getElementById("metaTagForScriptSrc").getAttribute("content");
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assert_equals(metaTagContent, `script-src 'nonce-script-messages' 'nonce-self' 'sha256-${classicHash}' 'sha256-${moduleHash}' 'sha256-${importmapHash}'`);
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}, "script-src CSP directive is properly set.");
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_html_script_with_untrusted_source_text("classic");
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script.setAttribute("type", "application/ecmascript");
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// Appending the script will log "CLASSIC".
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "CLASSIC"]);
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}, "Untrusted HTMLScriptElement with classic type uses the source text returned by the default policy for inline CSP check.");
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// Firefox disallows import map after a module load, so place this promise
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// test before the module test.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1916277#c4
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_html_script_with_untrusted_source_text("importmap");
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script.setAttribute("type", "importmap");
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// Appending the script sets up an import map for logMessageModulePath.
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container.appendChild(script);
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// Importing logMessageModulePath will log message "IMPORTMAP"
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await import(`${logMessageModulePath}?message=UNMAPPED`);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "IMPORTMAP"]);
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}, "Untrusted HTMLScriptElement of importmap type uses the source text returned by the default policy for inline CSP check.");
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_html_script_with_untrusted_source_text("module");
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script.setAttribute("type", "module");
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// Appending the script will log message "MODULE"
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "HTMLScriptElement text", "MODULE"]);
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}, "Untrusted HTMLScriptElement of module type uses the source text returned by the default policy for inline CSP check.");
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</script>

‎trusted-types/script-enforcement-009.https.html‎

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<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/namespaces.js"></script>
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<script src="support/passthroughpolicy.js"></script>
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<script src="support/script-messages.js"></script>
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<link rel="help" href="https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-scripts">
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<link rel="help" href="https://html.spec.whatwg.org/#prepare-the-script-element">
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<link rel="help" href="https://w3c.github.io/webappsec-csp/#should-block-inline">
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<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'">
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<meta id="metaTagForScriptSrc" http-equiv="Content-Security-Policy" content="script-src 'nonce-script-messages' 'nonce-self' 'sha256-IpCtvKVFQbqDBhwCvQEsZoqgVXvAd6T2uRWd/Pz7FuI=' 'sha256-xanaWuoRdfLzI0+K8zpwr8eHi4RK2P6GglgCFXv0r00=' 'sha256-BPWjrQT1GMyyQ+6Fmycn7pSqh8L945ToMJ/nfGClLBc='">
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<!-- This is the same test as script-enforcement-008 but for SVGScriptElement. -->
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<svg id="container"></svg>
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<script nonce="self">
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const logMessageModulePath = "./support/logMessage-module.sub.js";
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// Define a default policy that transforms the script's type to some valid
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// source content.
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function scriptTypeToValue(value) {
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switch (value) {
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case "classic":
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return `window.log_message('CLASSIC');`;
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case "module":
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return `window.log_message('MODULE');`;
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case "importmap":
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return `{ "imports": { "${logMessageModulePath}?message=UNMAPPED": "${logMessageModulePath}?message=IMPORTMAP" }}`;
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}
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}
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trustedTypes.createPolicy("default", {
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createScript: (value, _, sink) => {
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window.log_message("CREATE_SCRIPT");
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window.log_message(sink);
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return scriptTypeToValue(value);
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}
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});
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promise_test(async t => {
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let classicHash = await base64_hash_for_inline_script(scriptTypeToValue("classic"), "SHA-256");
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let moduleHash = await base64_hash_for_inline_script(scriptTypeToValue("module"), "SHA-256");
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let importmapHash = await base64_hash_for_inline_script(scriptTypeToValue("importmap"), "SHA-256");
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let metaTagContent = document.getElementById("metaTagForScriptSrc").getAttribute("content");
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assert_equals(metaTagContent, `script-src 'nonce-script-messages' 'nonce-self' 'sha256-${classicHash}' 'sha256-${moduleHash}' 'sha256-${importmapHash}'`);
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}, "script-src CSP directive is properly set.");
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promise_test(async t => {
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let messages = await script_messages_for(_ => {
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let script = create_svg_script_with_untrusted_source_text("classic");
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script.setAttribute("type", "application/ecmascript");
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// Appending the script will log "CLASSIC".
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "CLASSIC"]);
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}, "Untrusted SVGScriptElement with classic type uses the source text returned by the default policy for inline CSP check.");
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// Firefox disallows import map after a module load, so place this promise
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// test before the module test.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1916277#c4
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_svg_script_with_untrusted_source_text("importmap");
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script.setAttribute("type", "importmap");
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// Appending the script sets up an import map for logMessageModulePath.
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container.appendChild(script);
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// Importing logMessageModulePath will log message "IMPORTMAP"
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await import(`${logMessageModulePath}?message=UNMAPPED`);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "IMPORTMAP"]);
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}, "Untrusted SVGScriptElement of importmap type uses the source text returned by the default policy for inline CSP check.");
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promise_test(async t => {
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let messages = await script_messages_for(async _ => {
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let script = create_svg_script_with_untrusted_source_text("module");
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script.setAttribute("type", "module");
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// Appending the script will log message "MODULE"
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container.appendChild(script);
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});
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assert_array_equals(messages, ["CREATE_SCRIPT", "SVGScriptElement text", "MODULE"]);
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}, "Untrusted SVGScriptElement of module type uses the source text returned by the default policy for inline CSP check.");
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</script>

‎trusted-types/support/logMessage-module.sub.js‎

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window.log_message("{{GET[message]}}");

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