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#include "js.h"
#include "cachedhttp.h"
#include "jsvm.h"
namespace {
Http &cachedHttp() {
static Http *h = [] {
CachedHttp *cachedHttp = new CachedHttp(Http::instance(), "js");
cachedHttp->setMaxSeconds(3600);
// Avoid expiring the cached js
cachedHttp->setMaxSize(0);
cachedHttp->getValidators().insert("application/javascript", [](const auto &reply) -> bool {
return !reply.body().isEmpty();
});
return cachedHttp;
}();
return *h;
}
} // namespace
JS &JS::instance() {
static thread_local JS i;
return i;
}
JS::JS(QObject *parent) : QObject(parent), engine(nullptr) {}
void JS::initialize(const QUrl &url) {
this->url = url;
initialize();
}
bool JS::checkError(const QJSValue &value) {
if (value.isError()) {
qWarning() << "Error" << value.toString();
qDebug() << value.property("stack").toString().splitRef('\n');
return true;
}
return false;
}
bool JS::isInitialized() {
if (ready) return true;
initialize();
return false;
}
JSResult &JS::callFunction(JSResult *result, const QString &name, const QJSValueList &args) {
if (!isInitialized()) {
qDebug() << "Not initialized";
QTimer::singleShot(1000, this,
[this, result, name, args] { callFunction(result, name, args); });
return *result;
}
auto function = engine->evaluate(name);
if (!function.isCallable()) {
qWarning() << function.toString() << " is not callable";
QTimer::singleShot(0, result, [result, function] { result->setError(function); });
return *result;
}
auto args2 = args;
args2.prepend(engine->newQObject(result));
qDebug() << "Calling" << function.toString();
auto v = function.call(args2);
if (checkError(v)) QTimer::singleShot(0, result, [result, v] { result->setError(v); });
return *result;
}
void JS::resetNAM() {
class MyCookieJar : public QNetworkCookieJar {
bool insertCookie(const QNetworkCookie &cookie) {
if (cookie.name().contains("CONSENT")) {
qDebug() << "Fixing CONSENT cookie" << cookie;
auto cookie2 = cookie;
cookie2.setValue(cookie.value().replace("PENDING", "YES"));
return QNetworkCookieJar::insertCookie(cookie2);
}
return QNetworkCookieJar::insertCookie(cookie);
}
};
auto nam = getEngine().networkAccessManager();
nam->clearAccessCache();
nam->setCookieJar(new MyCookieJar());
}
void JS::initialize() {
if (url.isEmpty()) {
qDebug() << "No js url set";
return;
}
if (initializing) return;
initializing = true;
qDebug() << "Initializing";
if (engine) engine->deleteLater();
engine = new QQmlEngine(this);
engine->setNetworkAccessManagerFactory(&namFactory);
engine->globalObject().setProperty("global", engine->globalObject());
QJSValue timer = engine->newQObject(new JSTimer(engine));
engine->globalObject().setProperty("setTimeoutQt", timer.property("setTimeout"));
QJSValue setTimeoutWrapperFunction =
engine->evaluate("function setTimeout(cb, delay) {"
"const args = Array.prototype.slice.call(arguments, 2);"
"return setTimeoutQt(cb, delay, args);"
"}");
checkError(setTimeoutWrapperFunction);
engine->globalObject().setProperty("clearTimeout", timer.property("clearTimeout"));
QJSValue vm = engine->newQObject(new JSVM(engine));
engine->globalObject().setProperty("runInContextQt", vm.property("runInContext"));
connect(cachedHttp().get(url), &HttpReply::finished, this, [this](auto &reply) {
if (!reply.isSuccessful()) {
emit initFailed("Cannot load JS");
qDebug() << "Cannot load JS";
initializing = false;
return;
}
auto value = engine->evaluate(reply.body());
if (!checkError(value)) {
qDebug() << "Initialized";
resetNAM();
ready = true;
emit initialized();
}
initializing = false;
});
}
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