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							142 lines
						
					
					
						
							4.2 KiB
						
					
					
				
			
		
		
	
	
							142 lines
						
					
					
						
							4.2 KiB
						
					
					
				#include "selfdrive/ui/qt/api.h"
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#include <openssl/pem.h>
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#include <openssl/rsa.h>
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#include <QApplication>
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#include <QCryptographicHash>
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#include <QDateTime>
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#include <QDebug>
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#include <QJsonDocument>
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#include <QNetworkRequest>
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#include <memory>
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#include <string>
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#include "common/util.h"
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#include "system/hardware/hw.h"
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#include "selfdrive/ui/qt/util.h"
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namespace CommaApi {
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RSA *get_rsa_private_key() {
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  static std::unique_ptr<RSA, decltype(&RSA_free)> rsa_private(nullptr, RSA_free);
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  if (!rsa_private) {
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    FILE *fp = fopen(Path::rsa_file().c_str(), "rb");
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    if (!fp) {
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      qDebug() << "No RSA private key found, please run manager.py or registration.py";
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      return nullptr;
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    }
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    rsa_private.reset(PEM_read_RSAPrivateKey(fp, NULL, NULL, NULL));
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    fclose(fp);
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  }
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  return rsa_private.get();
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}
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QByteArray rsa_sign(const QByteArray &data) {
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  RSA *rsa_private = get_rsa_private_key();
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  if (!rsa_private) return {};
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  QByteArray sig(RSA_size(rsa_private), Qt::Uninitialized);
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  unsigned int sig_len;
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  int ret = RSA_sign(NID_sha256, (unsigned char*)data.data(), data.size(), (unsigned char*)sig.data(), &sig_len, rsa_private);
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  assert(ret == 1);
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  assert(sig.size() == sig_len);
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  return sig;
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}
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QString create_jwt(const QJsonObject &payloads, int expiry) {
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  QJsonObject header = {{"alg", "RS256"}};
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  auto t = QDateTime::currentSecsSinceEpoch();
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  QJsonObject payload = {{"identity", getDongleId().value_or("")}, {"nbf", t}, {"iat", t}, {"exp", t + expiry}};
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  for (auto it = payloads.begin(); it != payloads.end(); ++it) {
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    payload.insert(it.key(), it.value());
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  }
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  auto b64_opts = QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals;
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  QString jwt = QJsonDocument(header).toJson(QJsonDocument::Compact).toBase64(b64_opts) + '.' +
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                QJsonDocument(payload).toJson(QJsonDocument::Compact).toBase64(b64_opts);
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  auto hash = QCryptographicHash::hash(jwt.toUtf8(), QCryptographicHash::Sha256);
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  return jwt + "." + rsa_sign(hash).toBase64(b64_opts);
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}
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}  // namespace CommaApi
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HttpRequest::HttpRequest(QObject *parent, bool create_jwt, int timeout) : create_jwt(create_jwt), QObject(parent) {
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  networkTimer = new QTimer(this);
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  networkTimer->setSingleShot(true);
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  networkTimer->setInterval(timeout);
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  connect(networkTimer, &QTimer::timeout, this, &HttpRequest::requestTimeout);
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}
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bool HttpRequest::active() const {
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  return reply != nullptr;
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}
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bool HttpRequest::timeout() const {
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  return reply && reply->error() == QNetworkReply::OperationCanceledError;
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}
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void HttpRequest::sendRequest(const QString &requestURL, const HttpRequest::Method method) {
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  if (active()) {
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    qDebug() << "HttpRequest is active";
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    return;
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  }
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  QString token;
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  if (create_jwt) {
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    token = CommaApi::create_jwt();
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  } else {
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    QString token_json = QString::fromStdString(util::read_file(util::getenv("HOME") + "/.comma/auth.json"));
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    QJsonDocument json_d = QJsonDocument::fromJson(token_json.toUtf8());
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    token = json_d["access_token"].toString();
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  }
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  QNetworkRequest request;
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  request.setUrl(QUrl(requestURL));
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  request.setRawHeader("User-Agent", getUserAgent().toUtf8());
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  if (!token.isEmpty()) {
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    request.setRawHeader(QByteArray("Authorization"), ("JWT " + token).toUtf8());
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  }
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  if (method == HttpRequest::Method::GET) {
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    reply = nam()->get(request);
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  } else if (method == HttpRequest::Method::DELETE) {
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    reply = nam()->deleteResource(request);
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  }
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  networkTimer->start();
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  connect(reply, &QNetworkReply::finished, this, &HttpRequest::requestFinished);
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}
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void HttpRequest::requestTimeout() {
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  reply->abort();
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}
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void HttpRequest::requestFinished() {
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  networkTimer->stop();
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  if (reply->error() == QNetworkReply::NoError) {
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    emit requestDone(reply->readAll(), true, reply->error());
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  } else {
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    QString error;
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    if (reply->error() == QNetworkReply::OperationCanceledError) {
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      nam()->clearAccessCache();
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      nam()->clearConnectionCache();
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      error = "Request timed out";
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    } else {
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      error = reply->errorString();
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    }
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    emit requestDone(error, false, reply->error());
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  }
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  reply->deleteLater();
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  reply = nullptr;
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}
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QNetworkAccessManager *HttpRequest::nam() {
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  static QNetworkAccessManager *networkAccessManager = new QNetworkAccessManager(qApp);
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  return networkAccessManager;
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}
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