diff options
Diffstat (limited to 'tools/addon-sdk-1.12/lib/sdk/loader/sandbox.js')
-rw-r--r-- | tools/addon-sdk-1.12/lib/sdk/loader/sandbox.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.12/lib/sdk/loader/sandbox.js b/tools/addon-sdk-1.12/lib/sdk/loader/sandbox.js new file mode 100644 index 0000000..3c085aa --- /dev/null +++ b/tools/addon-sdk-1.12/lib/sdk/loader/sandbox.js @@ -0,0 +1,50 @@ +/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +"use strict"; + +module.metadata = { + "stability": "experimental" +}; + +const { Cc, Ci, CC, Cu } = require('chrome'); +const systemPrincipal = CC('@mozilla.org/systemprincipal;1', 'nsIPrincipal')(); +const scriptLoader = Cc['@mozilla.org/moz/jssubscript-loader;1']. + getService(Ci.mozIJSSubScriptLoader); + +/** + * Make a new sandbox that inherits given `source`'s principals. Source can be + * URI string, DOMWindow or `null` for system principals. + */ +function sandbox(target, options) { + return Cu.Sandbox(target || systemPrincipal, options || {}); +} +exports.sandbox = sandbox + +/** + * Evaluates given `source` in a given `sandbox` and returns result. + */ +function evaluate(sandbox, code, uri, line, version) { + return Cu.evalInSandbox(code, sandbox, version || '1.8', uri || '', line || 1); +} +exports.evaluate = evaluate; + +/** + * Evaluates code under the given `uri` in the given `sandbox`. + * + * @param {String} uri + * The URL pointing to the script to load. + * It must be a local chrome:, resource:, file: or data: URL. + */ +function load(sandbox, uri) { + if (uri.indexOf('data:') === 0) { + let source = uri.substr(uri.indexOf(',') + 1); + + return evaluate(sandbox, decodeURIComponent(source), '1.8', uri, 0); + } else { + return scriptLoader.loadSubScript(uri, sandbox, 'UTF-8'); + } +} +exports.load = load;
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