From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- .../sandbox/test/browser_content_sandbox_fs.js | 169 +++++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100644 security/sandbox/test/browser_content_sandbox_fs.js (limited to 'security/sandbox/test/browser_content_sandbox_fs.js') diff --git a/security/sandbox/test/browser_content_sandbox_fs.js b/security/sandbox/test/browser_content_sandbox_fs.js new file mode 100644 index 000000000..946f86bb9 --- /dev/null +++ b/security/sandbox/test/browser_content_sandbox_fs.js @@ -0,0 +1,169 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/publicdomain/zero/1.0/ */ + +var prefs = Cc["@mozilla.org/preferences-service;1"] + .getService(Ci.nsIPrefBranch); + +Services.scriptloader.loadSubScript("chrome://mochitests/content/browser/" + + "security/sandbox/test/browser_content_sandbox_utils.js", this); + +/* + * This test exercises file I/O from the content process using OS.File + * methods to validate that calls that are meant to be blocked by content + * sandboxing are blocked. + */ + +// Creates file at |path| and returns a promise that resolves with true +// if the file was successfully created, otherwise false. Include imports +// so this can be safely serialized and run remotely by ContentTask.spawn. +function createFile(path) { + Components.utils.import("resource://gre/modules/osfile.jsm"); + let encoder = new TextEncoder(); + let array = encoder.encode("WRITING FROM CONTENT PROCESS"); + return OS.File.writeAtomic(path, array).then(function(value) { + return true; + }, function(reason) { + return false; + }); +} + +// Deletes file at |path| and returns a promise that resolves with true +// if the file was successfully deleted, otherwise false. Include imports +// so this can be safely serialized and run remotely by ContentTask.spawn. +function deleteFile(path) { + Components.utils.import("resource://gre/modules/osfile.jsm"); + return OS.File.remove(path, {ignoreAbsent: false}).then(function(value) { + return true; + }).catch(function(err) { + return false; + }); +} + +// Returns true if the current content sandbox level, passed in +// the |level| argument, supports filesystem sandboxing. +function isContentFileIOSandboxed(level) { + let fileIOSandboxMinLevel = 0; + + // Set fileIOSandboxMinLevel to the lowest level that has + // content filesystem sandboxing enabled. For now, this + // varies across Windows, Mac, Linux, other. + switch (Services.appinfo.OS) { + case "WINNT": + fileIOSandboxMinLevel = 1; + break; + case "Darwin": + fileIOSandboxMinLevel = 1; + break; + case "Linux": + fileIOSandboxMinLevel = 2; + break; + default: + Assert.ok(false, "Unknown OS"); + } + + return (level >= fileIOSandboxMinLevel); +} + +// +// Drive tests for a single content process. +// +// Tests attempting to write to a file in the home directory from the +// content process--expected to fail. +// +// Tests attempting to write to a file in the content temp directory +// from the content process--expected to succeed. On Mac and Windows, +// use "ContentTmpD", but on Linux use "TmpD" until Linux uses the +// content temp dir key. +// +add_task(function*() { + // This test is only relevant in e10s + if (!gMultiProcessBrowser) { + ok(false, "e10s is enabled"); + info("e10s is not enabled, exiting"); + return; + } + + let level = 0; + let prefExists = true; + + // Read the security.sandbox.content.level pref. + // If the pref isn't set and we're running on Linux on !isNightly(), + // exit without failing. The Linux content sandbox is only enabled + // on Nightly at this time. + try { + level = prefs.getIntPref("security.sandbox.content.level"); + } catch (e) { + prefExists = false; + } + + // Special case Linux on !isNightly + if (isLinux() && !isNightly()) { + todo(prefExists, "pref security.sandbox.content.level exists"); + if (!prefExists) { + return; + } + } + + ok(prefExists, "pref security.sandbox.content.level exists"); + if (!prefExists) { + return; + } + + // Special case Linux on !isNightly + if (isLinux() && !isNightly()) { + todo(level > 0, "content sandbox enabled for !nightly."); + return; + } + + info(`security.sandbox.content.level=${level}`); + ok(level > 0, "content sandbox is enabled."); + if (level == 0) { + info("content sandbox is not enabled, exiting"); + return; + } + + let isFileIOSandboxed = isContentFileIOSandboxed(level); + + // Special case Linux on !isNightly + if (isLinux() && !isNightly()) { + todo(isFileIOSandboxed, "content file I/O sandbox enabled for !nightly."); + return; + } + + // Content sandbox enabled, but level doesn't include file I/O sandboxing. + ok(isFileIOSandboxed, "content file I/O sandboxing is enabled."); + if (!isFileIOSandboxed) { + info("content sandbox level too low for file I/O tests, exiting\n"); + return; + } + + let browser = gBrowser.selectedBrowser; + + { + // test if the content process can create in $HOME, this should fail + let homeFile = fileInHomeDir(); + let path = homeFile.path; + let fileCreated = yield ContentTask.spawn(browser, path, createFile); + ok(fileCreated == false, "creating a file in home dir is not permitted"); + if (fileCreated == true) { + // content process successfully created the file, now remove it + homeFile.remove(false); + } + } + + { + // test if the content process can create a temp file, should pass + let path = fileInTempDir().path; + let fileCreated = yield ContentTask.spawn(browser, path, createFile); + if (!fileCreated && isWin()) { + // TODO: fix 1329294 and enable this test for Windows. + // Not using todo() because this only fails on automation. + info("ignoring failure to write to content temp due to 1329294\n"); + return; + } + ok(fileCreated == true, "creating a file in content temp is permitted"); + // now delete the file + let fileDeleted = yield ContentTask.spawn(browser, path, deleteFile); + ok(fileDeleted == true, "deleting a file in content temp is permitted"); + } +}); -- cgit v1.2.3