| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| * vim: set ts=8 sts=4 et sw=4 tw=99: |
| * 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/. */ |
| |
| #include "tests.h" |
| |
| JSPrincipals system_principals = { |
| 1 |
| }; |
| |
| JSClass global_class = { |
| "global", |
| JSCLASS_IS_GLOBAL | JSCLASS_GLOBAL_FLAGS, |
| JS_PropertyStub, |
| JS_DeletePropertyStub, |
| JS_PropertyStub, |
| JS_StrictPropertyStub, |
| JS_EnumerateStub, |
| JS_ResolveStub, |
| JS_ConvertStub |
| }; |
| |
| JSObject *trusted_glob = NULL; |
| JSObject *trusted_fun = NULL; |
| |
| JSBool |
| CallTrusted(JSContext *cx, unsigned argc, jsval *vp) |
| { |
| if (!JS_SaveFrameChain(cx)) |
| return JS_FALSE; |
| |
| JSBool ok = JS_FALSE; |
| { |
| JSAutoCompartment ac(cx, trusted_glob); |
| ok = JS_CallFunctionValue(cx, NULL, JS::ObjectValue(*trusted_fun), |
| 0, NULL, vp); |
| } |
| JS_RestoreFrameChain(cx); |
| return ok; |
| } |
| |
| BEGIN_TEST(testChromeBuffer) |
| { |
| JS_SetTrustedPrincipals(rt, &system_principals); |
| |
| trusted_glob = JS_NewGlobalObject(cx, &global_class, &system_principals); |
| CHECK(trusted_glob); |
| |
| if (!JS_AddNamedObjectRoot(cx, &trusted_glob, "trusted-global")) |
| return false; |
| if (!JS_AddNamedObjectRoot(cx, &trusted_fun, "trusted-function")) |
| return false; |
| |
| JSFunction *fun; |
| |
| /* |
| * Check that, even after untrusted content has exhausted the stack, code |
| * compiled with "trusted principals" can run using reserved trusted-only |
| * buffer space. |
| */ |
| { |
| { |
| JSAutoCompartment ac(cx, trusted_glob); |
| const char *paramName = "x"; |
| const char *bytes = "return x ? 1 + trusted(x-1) : 0"; |
| JS::HandleObject global = JS::HandleObject::fromMarkedLocation(&trusted_glob); |
| CHECK(fun = JS_CompileFunctionForPrincipals(cx, global, &system_principals, |
| "trusted", 1, ¶mName, bytes, strlen(bytes), |
| "", 0)); |
| trusted_fun = JS_GetFunctionObject(fun); |
| } |
| |
| JS::RootedValue v(cx, JS::ObjectValue(*trusted_fun)); |
| CHECK(JS_WrapValue(cx, v.address())); |
| |
| const char *paramName = "trusted"; |
| const char *bytes = "try { " |
| " return untrusted(trusted); " |
| "} catch (e) { " |
| " try { " |
| " return trusted(100); " |
| " } catch(e) { " |
| " return -1; " |
| " } " |
| "} "; |
| CHECK(fun = JS_CompileFunction(cx, global, "untrusted", 1, ¶mName, |
| bytes, strlen(bytes), "", 0)); |
| |
| JS::RootedValue rval(cx); |
| CHECK(JS_CallFunction(cx, NULL, fun, 1, v.address(), rval.address())); |
| CHECK(JSVAL_TO_INT(rval) == 100); |
| } |
| |
| /* |
| * Check that content called from chrome in the reserved-buffer space |
| * immediately ooms. |
| */ |
| { |
| { |
| JSAutoCompartment ac(cx, trusted_glob); |
| const char *paramName = "untrusted"; |
| const char *bytes = "try { " |
| " untrusted(); " |
| "} catch (e) { " |
| " return 'From trusted: ' + e; " |
| "} "; |
| JS::HandleObject global = JS::HandleObject::fromMarkedLocation(&trusted_glob); |
| CHECK(fun = JS_CompileFunctionForPrincipals(cx, global, &system_principals, |
| "trusted", 1, ¶mName, bytes, strlen(bytes), |
| "", 0)); |
| trusted_fun = JS_GetFunctionObject(fun); |
| } |
| |
| JS::RootedValue v(cx, JS::ObjectValue(*trusted_fun)); |
| CHECK(JS_WrapValue(cx, v.address())); |
| |
| const char *paramName = "trusted"; |
| const char *bytes = "try { " |
| " return untrusted(trusted); " |
| "} catch (e) { " |
| " return trusted(untrusted); " |
| "} "; |
| CHECK(fun = JS_CompileFunction(cx, global, "untrusted", 1, ¶mName, |
| bytes, strlen(bytes), "", 0)); |
| |
| JS::RootedValue rval(cx); |
| CHECK(JS_CallFunction(cx, NULL, fun, 1, v.address(), rval.address())); |
| JSBool match; |
| CHECK(JS_StringEqualsAscii(cx, JSVAL_TO_STRING(rval), "From trusted: InternalError: too much recursion", &match)); |
| CHECK(match); |
| } |
| |
| /* |
| * Check that JS_SaveFrameChain called on the way from content to chrome |
| * (say, as done by XPCJSContextSTack::Push) works. |
| */ |
| { |
| { |
| JSAutoCompartment ac(cx, trusted_glob); |
| const char *bytes = "return 42"; |
| JS::HandleObject global = JS::HandleObject::fromMarkedLocation(&trusted_glob); |
| CHECK(fun = JS_CompileFunctionForPrincipals(cx, global, &system_principals, |
| "trusted", 0, NULL, bytes, strlen(bytes), |
| "", 0)); |
| trusted_fun = JS_GetFunctionObject(fun); |
| } |
| |
| JS::RootedFunction fun(cx, JS_NewFunction(cx, CallTrusted, 0, 0, global, "callTrusted")); |
| JS::RootedObject callTrusted(cx, JS_GetFunctionObject(fun)); |
| |
| const char *paramName = "f"; |
| const char *bytes = "try { " |
| " return untrusted(trusted); " |
| "} catch (e) { " |
| " return f(); " |
| "} "; |
| CHECK(fun = JS_CompileFunction(cx, global, "untrusted", 1, ¶mName, |
| bytes, strlen(bytes), "", 0)); |
| |
| JS::RootedValue arg(cx, JS::ObjectValue(*callTrusted)); |
| JS::RootedValue rval(cx); |
| CHECK(JS_CallFunction(cx, NULL, fun, 1, arg.address(), rval.address())); |
| CHECK(JSVAL_TO_INT(rval) == 42); |
| } |
| |
| return true; |
| } |
| virtual void uninit() { |
| JS_RemoveObjectRoot(cx, &trusted_glob); |
| JS_RemoveObjectRoot(cx, &trusted_fun); |
| JSAPITest::uninit(); |
| } |
| END_TEST(testChromeBuffer) |