forked from mirrors/gecko-dev
94 lines
2.4 KiB
JavaScript
94 lines
2.4 KiB
JavaScript
/* Copyright 2020 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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"use strict";
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const { SandboxSupportBase } = ChromeUtils.import(
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"resource://pdf.js/build/pdf.sandbox.external.js"
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);
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const EXPORTED_SYMBOLS = ["PdfSandbox"];
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class SandboxSupport extends SandboxSupportBase {
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constructor(win, sandbox) {
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super(win);
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this.sandbox = sandbox;
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}
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exportValueToSandbox(val) {
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return Cu.cloneInto(val, this.sandbox);
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}
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importValueFromSandbox(val) {
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return Cu.cloneInto(val, this.win);
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}
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createErrorForSandbox(errorMessage) {
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return new this.sandbox.Error(errorMessage);
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}
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}
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class PdfSandbox {
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constructor(window, data) {
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this.window = window;
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const sandbox = Cu.Sandbox(null, {
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sandboxName: "PDF.js scripting sandbox",
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sameZoneAs: window,
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wantXrays: true,
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wantGlobalProperties: [],
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wantComponents: false,
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wantExportHelpers: false,
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});
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this.sandbox = sandbox;
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this.support = new SandboxSupport(window, sandbox);
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const sandboxInit = Cu.createObjectIn(sandbox);
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sandboxInit.data = Cu.cloneInto(data, sandbox);
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sandbox.callExternalFunction = Cu.exportFunction(
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this.support.createSandboxExternals(),
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sandbox
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);
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try {
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// Run the code in the bundle
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Services.scriptloader.loadSubScript(
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"resource://pdf.js/build/pdf.scripting.js",
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sandbox
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);
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this.support.commFun = sandbox.pdfjsScripting.wrappedJSObject.initSandbox(
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sandboxInit
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);
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} catch (error) {
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// error belongs to the sandbox so create a new one
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const msg = error.message;
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this.destroy();
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throw new Error(msg);
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}
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}
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dispatchEvent(event) {
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this.support.callSandboxFunction("dispatchEvent", event);
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}
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destroy() {
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if (this.sandbox) {
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this.support.destroy();
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this.support = null;
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Cu.nukeSandbox(this.sandbox);
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this.sandbox = null;
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}
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}
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}
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