JSCExecutor::JSCExecutor(
Bridge *bridge,
int workerId,
JSCExecutor *owner,
const std::string& script,
const std::unordered_map<std::string, std::string>& globalObjAsJSON,
const folly::dynamic& jscConfig) :
m_bridge(bridge),
m_workerId(workerId),
m_owner(owner),
m_deviceCacheDir(owner->m_deviceCacheDir),
m_messageQueueThread(MessageQueues::getCurrentMessageQueueThread()),
m_jscConfig(jscConfig) {
// We post initOnJSVMThread here so that the owner doesn't have to wait for
// initialization on its own thread
m_messageQueueThread->runOnQueue([this, script, globalObjAsJSON] () {
initOnJSVMThread();
installGlobalFunction(m_context, "postMessage", nativePostMessage);
for (auto& it : globalObjAsJSON) {
setGlobalVariable(it.first, it.second);
}
// TODO(9604438): Protect against script does not exist
std::string scriptSrc = WebWorkerUtil::loadScriptFromAssets(script);
// TODO(9994180): Throw on error
loadApplicationScript(scriptSrc, script);
});
}
void JSCExecutor::loadApplicationUnbundle(
std::unique_ptr<JSModulesUnbundle> unbundle,
const std::string& startupCode,
const std::string& sourceURL) {
if (!m_unbundle) {
installGlobalFunction(m_context, "nativeRequire", nativeRequire);
}
m_unbundle = std::move(unbundle);
loadApplicationScript(startupCode, sourceURL);
}
JSCExecutor::JSCExecutor(
Bridge *bridge,
std::shared_ptr<MessageQueueThread> messageQueueThread,
int workerId,
JSCExecutor *owner,
const std::string& script,
const std::unordered_map<std::string, std::string>& globalObjAsJSON,
const folly::dynamic& jscConfig) :
m_bridge(bridge),
m_workerId(workerId),
m_owner(owner),
m_deviceCacheDir(owner->m_deviceCacheDir),
m_messageQueueThread(messageQueueThread),
m_jscConfig(jscConfig) {
// We post initOnJSVMThread here so that the owner doesn't have to wait for
// initialization on its own thread
m_messageQueueThread->runOnQueue([this, script, globalObjAsJSON] () {
initOnJSVMThread();
installGlobalFunction(m_context, "postMessage", nativePostMessage);
for (auto& it : globalObjAsJSON) {
setGlobalVariable(it.first, it.second);
}
// Try to load the script from the network if script is a URL
// NB: For security, this will only work in debug builds
std::string scriptSrc;
if (script.find("http://") == 0 || script.find("https://") == 0) {
std::stringstream outfileBuilder;
outfileBuilder << m_deviceCacheDir << "/workerScript" << m_workerId << ".js";
scriptSrc = WebWorkerUtil::loadScriptFromNetworkSync(script, outfileBuilder.str());
} else {
// TODO(9604438): Protect against script does not exist
scriptSrc = WebWorkerUtil::loadScriptFromAssets(script);
}
// TODO(9994180): Throw on error
loadApplicationScript(scriptSrc, script);
});
}
