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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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 "jsapi-tests/tests.h"
static TestJSPrincipals system_principals(1);
static const JSClassOps global_classOps = {
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
JS_GlobalObjectTraceHook
};
static const JSClass global_class = {
"global",
JSCLASS_IS_GLOBAL | JSCLASS_GLOBAL_FLAGS,
&global_classOps
};
static JS::PersistentRootedObject trusted_glob;
static JS::PersistentRootedObject trusted_fun;
static bool
CallTrusted(JSContext* cx, unsigned argc, JS::Value* vp)
{
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
bool ok = false;
{
JSAutoCompartment ac(cx, trusted_glob);
JS::RootedValue funVal(cx, JS::ObjectValue(*trusted_fun));
ok = JS_CallFunctionValue(cx, nullptr, funVal, JS::HandleValueArray::empty(), args.rval());
}
return ok;
}
BEGIN_TEST(testChromeBuffer)
{
JS_SetTrustedPrincipals(cx, &system_principals);
JS::CompartmentOptions options;
trusted_glob.init(cx, JS_NewGlobalObject(cx, &global_class, &system_principals,
JS::FireOnNewGlobalHook, options));
CHECK(trusted_glob);
JS::RootedFunction fun(cx);
/*
* Check that, even after untrusted content has exhausted the stack, code
* compiled with "trusted principals" can run using reserved trusted-only
* buffer space.
*/
{
// Disable the JIT because if we don't this test fails. See bug 1160414.
JS::ContextOptions oldOptions = JS::ContextOptionsRef(cx);
JS::ContextOptionsRef(cx).setIon(false).setBaseline(false);
{
JSAutoCompartment ac(cx, trusted_glob);
const char* paramName = "x";
const char* bytes = "return x ? 1 + trusted(x-1) : 0";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "trusted",
1, ¶mName, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, trusted_glob, "trusted", fun, JSPROP_ENUMERATE));
trusted_fun.init(cx, JS_GetFunctionObject(fun));
}
JS::RootedValue v(cx, JS::ObjectValue(*trusted_fun));
CHECK(JS_WrapValue(cx, &v));
const char* paramName = "trusted";
const char* bytes = "try { "
" return untrusted(trusted); "
"} catch (e) { "
" try { "
" return trusted(100); "
" } catch(e) { "
" return -1; "
" } "
"} ";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "untrusted", 1,
¶mName, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, global, "untrusted", fun, JSPROP_ENUMERATE));
JS::RootedValue rval(cx);
CHECK(JS_CallFunction(cx, nullptr, fun, JS::HandleValueArray(v), &rval));
CHECK(rval.toInt32() == 100);
JS::ContextOptionsRef(cx) = oldOptions;
}
/*
* 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) { "
" /* "
" * Careful! We must not reenter JS "
" * that might try to push a frame. "
" */ "
" return 'From trusted: ' + "
" e.name + ': ' + e.message; "
"} ";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "trusted",
1, ¶mName, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, trusted_glob, "trusted", fun, JSPROP_ENUMERATE));
trusted_fun = JS_GetFunctionObject(fun);
}
JS::RootedValue v(cx, JS::ObjectValue(*trusted_fun));
CHECK(JS_WrapValue(cx, &v));
const char* paramName = "trusted";
const char* bytes = "try { "
" return untrusted(trusted); "
"} catch (e) { "
" return trusted(untrusted); "
"} ";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "untrusted", 1,
¶mName, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, global, "untrusted", fun, JSPROP_ENUMERATE));
JS::RootedValue rval(cx);
CHECK(JS_CallFunction(cx, nullptr, fun, JS::HandleValueArray(v), &rval));
bool match;
CHECK(JS_StringEqualsAscii(cx, rval.toString(), "From trusted: InternalError: too much recursion", &match));
CHECK(match);
}
{
{
JSAutoCompartment ac(cx, trusted_glob);
const char* bytes = "return 42";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "trusted",
0, nullptr, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, trusted_glob, "trusted", fun, JSPROP_ENUMERATE));
trusted_fun = JS_GetFunctionObject(fun);
}
JS::RootedFunction fun(cx, JS_NewFunction(cx, CallTrusted, 0, 0, "callTrusted"));
JS::RootedObject callTrusted(cx, JS_GetFunctionObject(fun));
const char* paramName = "f";
const char* bytes = "try { "
" return untrusted(trusted); "
"} catch (e) { "
" return f(); "
"} ";
JS::CompileOptions options(cx);
options.setFileAndLine("", 0);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "untrusted", 1,
¶mName, bytes, strlen(bytes), &fun));
CHECK(JS_DefineProperty(cx, global, "untrusted", fun, JSPROP_ENUMERATE));
JS::RootedValue arg(cx, JS::ObjectValue(*callTrusted));
JS::RootedValue rval(cx);
CHECK(JS_CallFunction(cx, nullptr, fun, JS::HandleValueArray(arg), &rval));
CHECK(rval.toInt32() == 42);
}
return true;
}
END_TEST(testChromeBuffer)
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