The Tor Browser: js/src/jsapi-tests/testTrap.cpp@129ffea94266

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * vim: set ts=8 sts=4 et sw=4 tw=99:

     3  */

     4 /* This Source Code Form is subject to the terms of the Mozilla Public

     5  * License, v. 2.0. If a copy of the MPL was not distributed with this

     6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     8 #include "js/OldDebugAPI.h"

     9 #include "jsapi-tests/tests.h"

    11 static int emptyTrapCallCount = 0;

    13 static JSTrapStatus

    14 EmptyTrapHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,

    15                  jsval closureArg)

    16 {

    17     JS::RootedValue closure(cx, closureArg);

    18     JS_GC(JS_GetRuntime(cx));

    19     if (JSVAL_IS_STRING(closure))

    20         ++emptyTrapCallCount;

    21     return JSTRAP_CONTINUE;

    22 }

    24 BEGIN_TEST(testTrap_gc)

    25 {

    26     static const char source[] =

    27 "var i = 0;\n"

    28 "var sum = 0;\n"

    29 "while (i < 10) {\n"

    30 "    sum += i;\n"

    31 "    ++i;\n"

    32 "}\n"

    33 "({ result: sum });\n"

    34         ;

    36     // compile

    37     JS::CompileOptions options(cx);

    38     options.setFileAndLine(__FILE__, 1);

    39     JS::RootedScript script(cx, JS_CompileScript(cx, global, source,

    40                                                  strlen(source), options));

    41     CHECK(script);

    43     // execute

    44     JS::RootedValue v2(cx);

    45     CHECK(JS_ExecuteScript(cx, global, script, &v2));

    46     CHECK(v2.isObject());

    47     CHECK_EQUAL(emptyTrapCallCount, 0);

    49     // Enable debug mode

    50     CHECK(JS_SetDebugMode(cx, true));

    52     static const char trapClosureText[] = "some trap closure";

    54     // scope JSScript  usage to make sure that it is not used after

    55     // JS_ExecuteScript. This way we avoid using Anchor.

    56     JS::RootedString trapClosure(cx);

    57     {

    58         jsbytecode *line2 = JS_LineNumberToPC(cx, script, 1);

    59         CHECK(line2);

    61         jsbytecode *line6 = JS_LineNumberToPC(cx, script, 5);

    62         CHECK(line2);

    64         trapClosure = JS_NewStringCopyZ(cx, trapClosureText);

    65         CHECK(trapClosure);

    66         JS::RootedValue closureValue(cx, JS::StringValue(trapClosure));

    67         JS_SetTrap(cx, script, line2, EmptyTrapHandler, closureValue);

    68         JS_SetTrap(cx, script, line6, EmptyTrapHandler, closureValue);

    70         JS_GC(rt);

    72         CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));

    73     }

    75     // execute

    76     CHECK(JS_ExecuteScript(cx, global, script, &v2));

    77     CHECK_EQUAL(emptyTrapCallCount, 11);

    79     JS_GC(rt);

    81     CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));

    83     return true;

    84 }

    85 END_TEST(testTrap_gc)

The Tor Browser / file revision

js/src/jsapi-tests/testTrap.cpp@129ffea94266

js/src/jsapi-tests/testTrap.cpp