NS_IMETHODIMP
AutoMounterSetting::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (strcmp(aTopic, MOZSETTINGS_CHANGED) != 0) {
return NS_OK;
}
// Note that this function gets called for any and all settings changes,
// so we need to carefully check if we have the one we're interested in.
//
// The string that we're interested in will be a JSON string that looks like:
// {"key":"ums.autoMount","value":true}
nsCOMPtr<nsIThreadJSContextStack> stack =
do_GetService("@mozilla.org/js/xpc/ContextStack;1");
if (!stack) {
ERR("Failed to get JSContextStack");
return NS_OK;
}
JSContext* cx = stack->GetSafeJSContext();
if (!cx) {
ERR("Failed to GetSafeJSContext");
return NS_OK;
}
nsDependentString dataStr(aData);
JS::Value val;
if (!JS_ParseJSON(cx, dataStr.get(), dataStr.Length(), &val) ||
!val.isObject()) {
return NS_OK;
}
JSObject& obj(val.toObject());
JS::Value key;
if (!JS_GetProperty(cx, &obj, "key", &key) ||
!key.isString()) {
return NS_OK;
}
JSBool match;
if (!JS_StringEqualsAscii(cx, key.toString(), UMS_MODE, &match) ||
(match != JS_TRUE)) {
return NS_OK;
}
JS::Value value;
if (!JS_GetProperty(cx, &obj, "value", &value) ||
!value.isInt32()) {
return NS_OK;
}
int32_t mode = value.toInt32();
SetAutoMounterMode(mode);
return NS_OK;
}
bool IdWrapper::equalsAscii(StringData sd) const {
if (isString()) {
auto str = JSID_TO_STRING(_value);
if (!str) {
uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JSID_TO_STRING");
}
bool matched;
if (!JS_StringEqualsAscii(_context, str, sd.rawData(), &matched)) {
uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_StringEqualsAscii");
}
return matched;
}
if (isInt()) {
JSStringWrapper jsstr(toInt32());
return jsstr.toStringData().compare(sd) == 0;
}
uasserted(ErrorCodes::BadValue, "Cannot equalsAscii non-string non-integer jsid");
}
static bool
CheckVector(JSContext* cx, Handle<ShapeVec> shapes)
{
for (size_t i = 0; i < 10; ++i) {
// Check the shape to ensure it did not get collected.
char buffer[2];
buffer[0] = 'a' + i;
buffer[1] = '\0';
bool match;
if (!JS_StringEqualsAscii(cx, JSID_TO_STRING(shapes[i]->propid()), buffer, &match))
return false;
if (!match)
return false;
}
// Ensure iterator enumeration works through the handle.
for (auto shape : shapes) {
if (!shape)
return false;
}
return true;
}
static void
TestArgFormatter(JSContext* jscontext, JSObject* glob, nsIXPConnect* xpc)
{
JSBool ok = JS_TRUE;
const char* a_in = "some string";
nsCOMPtr<nsITestXPCFoo> b_in = new nsTestXPCFoo();
nsCOMPtr<nsIWritableVariant> c_in = do_CreateInstance("@mozilla.org/variant;1");
static NS_NAMED_LITERAL_STRING(d_in, "foo bar");
const char* e_in = "another meaningless chunck of text";
JSBool a_match;
nsCOMPtr<nsISupports> b_out;
nsCOMPtr<nsIVariant> c_out;
nsAutoString d_out;
JSBool e_match;
nsCOMPtr<nsITestXPCFoo> specified;
PRInt32 val;
printf("ArgumentFormatter test: ");
if(!b_in || !c_in || NS_FAILED(c_in->SetAsInt32(5)))
{
printf(" failed to construct test objects -- FAILED!\n");
return;
}
do {
JSAutoRequest ar(jscontext);
// Prepare an array of arguments for JS_ConvertArguments
jsval argv[5];
js::AutoArrayRooter tvr(jscontext, JS_ARRAY_LENGTH(argv), argv);
if (!PushArguments(jscontext, 5, argv,
"s %ip %iv %is s",
a_in,
&NS_GET_IID(nsITestXPCFoo2), b_in.get(),
c_in.get(),
static_cast<const nsAString*>(&d_in),
e_in))
{
printf(" could not convert from native to JS -- FAILED!\n");
return;
}
JSString *a_out, *e_out;
ok = JS_ConvertArguments(jscontext, 5, argv, "S %ip %iv %is S",
&a_out,
static_cast<nsISupports**>(getter_AddRefs(b_out)),
static_cast<nsIVariant**>(getter_AddRefs(c_out)),
static_cast<nsAString*>(&d_out),
&e_out);
TAF_CHECK(ok, " could not convert from JS to native -- FAILED!\n");
TAF_CHECK(b_out, " JS to native for %%ip returned NULL -- FAILED!\n");
specified = do_QueryInterface(b_out);
TAF_CHECK(specified, " could not QI value JS to native returned -- FAILED!\n");
ok = specified.get() == b_in.get();
TAF_CHECK(ok, " JS to native returned wrong value -- FAILED!\n");
TAF_CHECK(c_out, " JS to native for %%iv returned NULL -- FAILED!\n");
TAF_CHECK(NS_SUCCEEDED(c_out->GetAsInt32(&val)) && val == 5, " JS to native for %%iv holds wrong value -- FAILED!\n");
TAF_CHECK(d_in.Equals(d_out), " JS to native for %%is returned the wrong value -- FAILED!\n");
TAF_CHECK(JS_StringEqualsAscii(jscontext, a_out, a_in, &a_match), " oom -- FAILED!\n");
TAF_CHECK(JS_StringEqualsAscii(jscontext, e_out, e_in, &e_match), " oom -- FAILED!\n");
} while (0);
if (!ok)
return;
if(a_match && e_match)
printf("passed\n");
else
printf(" conversion OK, but surrounding was mangled -- FAILED!\n");
}