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;
}
Esempio n. 2
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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");
}
Esempio n. 3
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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;
}
Esempio n. 4
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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");
}