/usr/share/xul-ext/greasemonkey/modules/sandbox.js is in xul-ext-greasemonkey 3.8-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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var Cu = Components.utils;
var Ci = Components.interfaces;
var Cc = Components.classes;
Cu.import('chrome://greasemonkey-modules/content/GM_openInTab.js');
Cu.import('chrome://greasemonkey-modules/content/GM_setClipboard.js');
Cu.import("chrome://greasemonkey-modules/content/menucommand.js");
Cu.import("chrome://greasemonkey-modules/content/miscapis.js");
Cu.import("chrome://greasemonkey-modules/content/storageFront.js");
Cu.import("chrome://greasemonkey-modules/content/util.js");
Cu.import("chrome://greasemonkey-modules/content/xmlhttprequester.js");
Cu.import("chrome://greasemonkey-modules/content/extractMeta.js");
var gStringBundle = Cc["@mozilla.org/intl/stringbundle;1"]
.getService(Ci.nsIStringBundleService)
.createBundle("chrome://greasemonkey/locale/greasemonkey.properties");
var gInvalidAccesskeyErrorStr = gStringBundle
.GetStringFromName('error.menu-invalid-accesskey');
var subLoader = Components.classes["@mozilla.org/moz/jssubscript-loader;1"]
.getService(Components.interfaces.mozIJSSubScriptLoader);
// Only a particular set of strings are allowed. See: http://goo.gl/ex2LJ
var gMaxJSVersion = "ECMAv5";
function createSandbox(aScript, aContentWin, aUrl, aFrameScope) {
if (GM_util.inArray(aScript.grants, 'none')) {
// If there is an explicit none grant, use a plain unwrapped sandbox
// with no other content.
var contentSandbox = new Components.utils.Sandbox(
aContentWin,
{
'sameZoneAs': aContentWin,
'sandboxName': aScript.id,
'sandboxPrototype': aContentWin,
'wantXrays': false,
});
// GM_info is always provided.
injectGMInfo(aScript, contentSandbox, aContentWin);
// Alias unsafeWindow for compatibility.
Components.utils.evalInSandbox(
'const unsafeWindow = window;', contentSandbox);
return contentSandbox;
}
var sandbox = new Components.utils.Sandbox(
[aContentWin],
{
'sameZoneAs': aContentWin,
'sandboxName': aScript.id,
'sandboxPrototype': aContentWin,
'wantXrays': true,
'wantExportHelpers': true
});
// Note that because waivers aren't propagated between origins, we need the
// unsafeWindow getter to live in the sandbox. See http://bugzil.la/1043958
var unsafeWindowGetter = new sandbox.Function(
'return window.wrappedJSObject || window;');
Object.defineProperty(sandbox, 'unsafeWindow', {get: unsafeWindowGetter});
if (GM_util.inArray(aScript.grants, 'GM_addStyle')) {
sandbox.GM_addStyle = GM_util.hitch(null, GM_addStyle, aContentWin.document);
}
if (GM_util.inArray(aScript.grants, 'GM_log')) {
sandbox.GM_log = GM_util.hitch(new GM_ScriptLogger(aScript), 'log');
}
if (GM_util.inArray(aScript.grants, 'GM_registerMenuCommand')) {
Components.utils.evalInSandbox(
'this._MenuCommandSandbox = ' + MenuCommandSandbox.toSource(), sandbox);
sandbox._MenuCommandSandbox(
aScript.uuid, aScript.name, MenuCommandRespond,
gInvalidAccesskeyErrorStr, MenuCommandEventNameSuffix);
Components.utils.evalInSandbox(
'delete this._MenuCommandSandbox;', sandbox);
}
var scriptStorage = new GM_ScriptStorageFront(aScript, aFrameScope, sandbox);
if (GM_util.inArray(aScript.grants, 'GM_deleteValue')) {
sandbox.GM_deleteValue = GM_util.hitch(scriptStorage, 'deleteValue');
}
if (GM_util.inArray(aScript.grants, 'GM_getValue')) {
sandbox.GM_getValue = GM_util.hitch(scriptStorage, 'getValue');
}
if (GM_util.inArray(aScript.grants, 'GM_setValue')) {
sandbox.GM_setValue = GM_util.hitch(scriptStorage, 'setValue');
}
if (GM_util.inArray(aScript.grants, 'GM_setClipboard')) {
sandbox.GM_setClipboard = GM_util.hitch(null, GM_setClipboard);
}
var scriptResources = new GM_Resources(aScript);
if (GM_util.inArray(aScript.grants, 'GM_getResourceURL')) {
sandbox.GM_getResourceURL = GM_util.hitch(scriptResources, 'getResourceURL', aScript);
}
if (GM_util.inArray(aScript.grants, 'GM_getResourceText')) {
sandbox.GM_getResourceText = GM_util.hitch(scriptResources, 'getResourceText');
}
if (GM_util.inArray(aScript.grants, 'GM_listValues')) {
// Return plain (JSON) string from chrome, parse it in the sandbox,
// to avoid issues with objects (Array) crossing security boundaries.
sandbox._GM_listValues = GM_util.hitch(scriptStorage, 'listValues');
Components.utils.evalInSandbox(
'function GM_listValues() { return JSON.parse(_GM_listValues()); }',
sandbox);
}
if (GM_util.inArray(aScript.grants, 'GM_openInTab')) {
sandbox.GM_openInTab = GM_util.hitch(null, GM_openInTab, aFrameScope, aUrl);
}
if (GM_util.inArray(aScript.grants, 'GM_xmlhttpRequest')) {
sandbox.GM_xmlhttpRequest = GM_util.hitch(
new GM_xmlhttpRequester(aContentWin, aUrl, sandbox),
'contentStartRequest');
}
injectGMInfo(aScript, sandbox, aContentWin);
return sandbox;
}
function injectGMInfo(aScript, sandbox, aContentWin) {
var rawInfo = aScript.info();
var scriptURL = aScript.fileURL;
rawInfo.isIncognito = GM_util.windowIsPrivate(aContentWin);
rawInfo.isPrivate = rawInfo.isIncognito;
// TODO: also delay top level clone via lazy getter? XPCOMUtils.defineLazyGetter
sandbox.GM_info = Cu.cloneInto(rawInfo, sandbox);
var waivedInfo = Components.utils.waiveXrays(sandbox.GM_info);
var fileCache = new Map();
function getScriptSource() {
var content = fileCache.get("scriptSource");
if (content === undefined) {
content = GM_util.fileXhr(scriptURL, "application/javascript");
fileCache.set("scriptSource", content);
}
return content;
}
function getMeta() {
var meta = fileCache.get("meta");
if (meta === undefined) {
meta = extractMeta(getScriptSource());
fileCache.set("meta", meta);
}
return meta;
}
// lazy getters for heavyweight strings that aren't sent down through IPC
Object.defineProperty(waivedInfo, "scriptSource", {
get: Cu.exportFunction(getScriptSource, sandbox)
});
// meta depends on content, so we need a lazy one here too
Object.defineProperty(waivedInfo, 'scriptMetaStr', {
get: Cu.exportFunction(getMeta, sandbox)
});
}
function runScriptInSandbox(script, sandbox) {
// Eval the code, with anonymous wrappers when/if appropriate.
function evalWithWrapper(url) {
try {
subLoader.loadSubScript(url, sandbox, "UTF-8");
} catch (e) {
if ("return not in function" == e.message) {
// See #1592; we never anon wrap anymore, unless forced to by a return
// not in a function.
GM_util.logError(
gStringBundle.GetStringFromName('return-not-in-func-deprecated'),
true, // is a warning
e.fileName,
e.lineNumber
);
var code = GM_util.fileXhr(url, "application/javascript");
Components.utils.evalInSandbox(
'(function(){ '+code+'\n})()', sandbox, gMaxJSVersion, url, 1);
} else {
// Otherwise raise.
throw e;
}
}
}
// Eval the code, with a try/catch to report errors cleanly.
function evalWithCatch(url) {
try {
evalWithWrapper(url);
} catch (e) {
// Log it properly.
GM_util.logError(e, false, e.fileName, e.lineNumber);
// Stop the script, in the case of requires, as if it was one big script.
return false;
}
return true;
}
for (var i = 0, require = null; require = script.requires[i]; i++) {
if (!evalWithCatch(require.fileURL)) {
return;
}
}
evalWithCatch(script.fileURL);
}
function urlToString(url) {
var channel = NetUtil.newChannel({
uri: NetUtil.newURI(url, "UTF-8"),
loadUsingSystemPrincipal: true,
});
var stream = channel.open();
var count = stream.available();
var data = NetUtil.readInputStreamToString(
stream, count, { charset : "utf-8" });
return data;
}
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