Add m-esr52 at 52.6.0

1 files changed, 232 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testStructuredClone.cpp b/js/src/jsapi-tests/testStructuredClone.cpp
new file mode 100644
index 000000000..a01afccad
--- /dev/null
+++ b/js/src/jsapi-tests/testStructuredClone.cpp
@@ -0,0 +1,232 @@
+/* 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 "builtin/TestingFunctions.h"
+#include "js/StructuredClone.h"
+
+#include "jsapi-tests/tests.h"
+
+using namespace js;
+
+BEGIN_TEST(testStructuredClone_object)
+{
+    JS::RootedObject g1(cx, createGlobal());
+    JS::RootedObject g2(cx, createGlobal());
+    CHECK(g1);
+    CHECK(g2);
+
+    JS::RootedValue v1(cx);
+
+    {
+        JSAutoCompartment ac(cx, g1);
+        JS::RootedValue prop(cx, JS::Int32Value(1337));
+
+        JS::RootedObject obj(cx, JS_NewPlainObject(cx));
+        v1 = JS::ObjectOrNullValue(obj);
+        CHECK(v1.isObject());
+        CHECK(JS_SetProperty(cx, obj, "prop", prop));
+    }
+
+    {
+        JSAutoCompartment ac(cx, g2);
+        JS::RootedValue v2(cx);
+
+        CHECK(JS_StructuredClone(cx, v1, &v2, nullptr, nullptr));
+        CHECK(v2.isObject());
+        JS::RootedObject obj(cx, &v2.toObject());
+
+        JS::RootedValue prop(cx);
+        CHECK(JS_GetProperty(cx, obj, "prop", &prop));
+        CHECK(prop.isInt32());
+        CHECK(&v1.toObject() != obj);
+        CHECK_EQUAL(prop.toInt32(), 1337);
+    }
+
+    return true;
+}
+END_TEST(testStructuredClone_object)
+
+BEGIN_TEST(testStructuredClone_string)
+{
+    JS::RootedObject g1(cx, createGlobal());
+    JS::RootedObject g2(cx, createGlobal());
+    CHECK(g1);
+    CHECK(g2);
+
+    JS::RootedValue v1(cx);
+
+    {
+        JSAutoCompartment ac(cx, g1);
+        JS::RootedValue prop(cx, JS::Int32Value(1337));
+
+        v1 = JS::StringValue(JS_NewStringCopyZ(cx, "Hello World!"));
+        CHECK(v1.isString());
+        CHECK(v1.toString());
+    }
+
+    {
+        JSAutoCompartment ac(cx, g2);
+        JS::RootedValue v2(cx);
+
+        CHECK(JS_StructuredClone(cx, v1, &v2, nullptr, nullptr));
+        CHECK(v2.isString());
+        CHECK(v2.toString());
+
+        JS::RootedValue expected(cx, JS::StringValue(
+            JS_NewStringCopyZ(cx, "Hello World!")));
+        CHECK_SAME(v2, expected);
+    }
+
+    return true;
+}
+END_TEST(testStructuredClone_string)
+
+struct StructuredCloneTestPrincipals final : public JSPrincipals {
+    uint32_t rank;
+
+    explicit StructuredCloneTestPrincipals(uint32_t rank, int32_t rc = 1) : rank(rank) {
+        this->refcount = rc;
+    }
+
+    bool write(JSContext* cx, JSStructuredCloneWriter* writer) override {
+        return JS_WriteUint32Pair(writer, rank, 0);
+    }
+
+    static bool read(JSContext* cx, JSStructuredCloneReader *reader, JSPrincipals** outPrincipals) {
+        uint32_t rank;
+        uint32_t unused;
+        if (!JS_ReadUint32Pair(reader, &rank, &unused))
+            return false;
+
+        *outPrincipals = new StructuredCloneTestPrincipals(rank);
+        return !!*outPrincipals;
+    }
+
+    static void destroy(JSPrincipals* p) {
+        auto p1 = static_cast<StructuredCloneTestPrincipals*>(p);
+        delete p1;
+    }
+
+    static uint32_t getRank(JSPrincipals* p) {
+        if (!p)
+            return 0;
+        return static_cast<StructuredCloneTestPrincipals*>(p)->rank;
+    }
+
+    static bool subsumes(JSPrincipals* a, JSPrincipals* b) {
+        return getRank(a) > getRank(b);
+    }
+
+    static JSSecurityCallbacks securityCallbacks;
+
+    static StructuredCloneTestPrincipals testPrincipals;
+};
+
+JSSecurityCallbacks StructuredCloneTestPrincipals::securityCallbacks = {
+    nullptr, // contentSecurityPolicyAllows
+    subsumes
+};
+
+BEGIN_TEST(testStructuredClone_SavedFrame)
+{
+    JS_SetSecurityCallbacks(cx, &StructuredCloneTestPrincipals::securityCallbacks);
+    JS_InitDestroyPrincipalsCallback(cx, StructuredCloneTestPrincipals::destroy);
+    JS_InitReadPrincipalsCallback(cx, StructuredCloneTestPrincipals::read);
+
+    auto testPrincipals = new StructuredCloneTestPrincipals(42, 0);
+    CHECK(testPrincipals);
+
+    auto DONE = (JSPrincipals*) 0xDEADBEEF;
+
+    struct {
+        const char* name;
+        JSPrincipals* principals;
+    } principalsToTest[] = {
+        { "IsSystem", &js::ReconstructedSavedFramePrincipals::IsSystem },
+        { "IsNotSystem", &js::ReconstructedSavedFramePrincipals::IsNotSystem },
+        { "testPrincipals", testPrincipals },
+        { "nullptr principals", nullptr },
+        { "DONE", DONE }
+    };
+
+    const char* FILENAME = "filename.js";
+
+    for (auto* pp = principalsToTest; pp->principals != DONE; pp++) {
+        fprintf(stderr, "Testing with principals '%s'\n", pp->name);
+
+	JS::CompartmentOptions options;
+        JS::RootedObject g(cx, JS_NewGlobalObject(cx, getGlobalClass(), pp->principals,
+                                                  JS::FireOnNewGlobalHook, options));
+        CHECK(g);
+        JSAutoCompartment ac(cx, g);
+
+        CHECK(js::DefineTestingFunctions(cx, g, false, false));
+
+        JS::RootedValue srcVal(cx);
+        CHECK(evaluate("(function one() {                      \n"  // 1
+                       "  return (function two() {             \n"  // 2
+                       "    return (function three() {         \n"  // 3
+                       "      return saveStack();              \n"  // 4
+                       "    }());                              \n"  // 5
+                       "  }());                                \n"  // 6
+                       "}());                                  \n", // 7
+                       FILENAME,
+                       1,
+                       &srcVal));
+
+        CHECK(srcVal.isObject());
+        JS::RootedObject srcObj(cx, &srcVal.toObject());
+
+        CHECK(srcObj->is<js::SavedFrame>());
+        js::RootedSavedFrame srcFrame(cx, &srcObj->as<js::SavedFrame>());
+
+        CHECK(srcFrame->getPrincipals() == pp->principals);
+
+        JS::RootedValue destVal(cx);
+        CHECK(JS_StructuredClone(cx, srcVal, &destVal, nullptr, nullptr));
+
+        CHECK(destVal.isObject());
+        JS::RootedObject destObj(cx, &destVal.toObject());
+
+        CHECK(destObj->is<js::SavedFrame>());
+        auto destFrame = &destObj->as<js::SavedFrame>();
+
+        size_t framesCopied = 0;
+        for (auto& f : *destFrame) {
+            framesCopied++;
+
+            CHECK(&f != srcFrame);
+
+            if (pp->principals == testPrincipals) {
+                // We shouldn't get a pointer to the same
+                // StructuredCloneTestPrincipals instance since we should have
+                // serialized and then deserialized it into a new instance.
+                CHECK(f.getPrincipals() != pp->principals);
+
+                // But it should certainly have the same rank.
+                CHECK(StructuredCloneTestPrincipals::getRank(f.getPrincipals()) ==
+                      StructuredCloneTestPrincipals::getRank(pp->principals));
+            } else {
+                // For our singleton principals, we should always get the same
+                // pointer back.
+                CHECK(js::ReconstructedSavedFramePrincipals::is(pp->principals) ||
+                      pp->principals == nullptr);
+                CHECK(f.getPrincipals() == pp->principals);
+            }
+
+            CHECK(EqualStrings(f.getSource(), srcFrame->getSource()));
+            CHECK(f.getLine() == srcFrame->getLine());
+            CHECK(f.getColumn() == srcFrame->getColumn());
+            CHECK(EqualStrings(f.getFunctionDisplayName(), srcFrame->getFunctionDisplayName()));
+
+            srcFrame = srcFrame->getParent();
+        }
+
+        // Four function frames + one global frame.
+        CHECK(framesCopied == 4);
+    }
+
+    return true;
+}
+END_TEST(testStructuredClone_SavedFrame)