140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
#include <QDateTime>
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#include <QDebug>
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#include <QFile>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QNetworkReply>
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#include <QNetworkRequest>
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#include <QString>
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#include <QWidget>
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#include <QTimer>
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#include <QRandomGenerator>
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#include "api.hpp"
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#include "common/params.h"
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#include "common/util.h"
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#if defined(QCOM) || defined(QCOM2)
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const std::string private_key_path = "/persist/comma/id_rsa";
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#else
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const std::string private_key_path = util::getenv_default("HOME", "/.comma/persist/comma/id_rsa", "/persist/comma/id_rsa");
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#endif
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QByteArray CommaApi::rsa_sign(QByteArray data) {
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auto file = QFile(private_key_path.c_str());
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if (!file.open(QIODevice::ReadOnly)) {
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qDebug() << "No RSA private key found, please run manager.py or registration.py";
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return QByteArray();
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}
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auto key = file.readAll();
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file.close();
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file.deleteLater();
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BIO* mem = BIO_new_mem_buf(key.data(), key.size());
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assert(mem);
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RSA* rsa_private = PEM_read_bio_RSAPrivateKey(mem, NULL, NULL, NULL);
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assert(rsa_private);
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auto sig = QByteArray();
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sig.resize(RSA_size(rsa_private));
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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_len == sig.size());
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BIO_free(mem);
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RSA_free(rsa_private);
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return sig;
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}
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QString CommaApi::create_jwt(QVector<QPair<QString, QJsonValue>> payloads, int expiry) {
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QString dongle_id = QString::fromStdString(Params().get("DongleId"));
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QJsonObject header;
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header.insert("alg", "RS256");
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QJsonObject payload;
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payload.insert("identity", dongle_id);
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auto t = QDateTime::currentSecsSinceEpoch();
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payload.insert("nbf", t);
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payload.insert("iat", t);
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payload.insert("exp", t + expiry);
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for (auto load : payloads) {
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payload.insert(load.first, load.second);
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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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auto sig = rsa_sign(hash);
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jwt += '.' + sig.toBase64(b64_opts);
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return jwt;
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}
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HttpRequest::HttpRequest(QObject *parent, QString requestURL, const QString &cache_key) : cache_key(cache_key), QObject(parent) {
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networkAccessManager = new QNetworkAccessManager(this);
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reply = NULL;
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networkTimer = new QTimer(this);
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networkTimer->setSingleShot(true);
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networkTimer->setInterval(20000);
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connect(networkTimer, SIGNAL(timeout()), this, SLOT(requestTimeout()));
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sendRequest(requestURL);
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if (!cache_key.isEmpty()) {
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if (std::string cached_resp = Params().get(cache_key.toStdString()); !cached_resp.empty()) {
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QTimer::singleShot(0, [=]() { emit receivedResponse(QString::fromStdString(cached_resp)); });
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}
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}
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}
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void HttpRequest::sendRequest(QString requestURL){
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QString token = CommaApi::create_jwt();
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QNetworkRequest request;
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request.setUrl(QUrl(requestURL));
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request.setRawHeader(QByteArray("Authorization"), ("JWT " + token).toUtf8());
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#ifdef QCOM
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QSslConfiguration ssl = QSslConfiguration::defaultConfiguration();
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ssl.setCaCertificates(QSslCertificate::fromPath("/usr/etc/tls/cert.pem",
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QSsl::Pem, QRegExp::Wildcard));
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request.setSslConfiguration(ssl);
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#endif
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reply = networkAccessManager->get(request);
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networkTimer->start();
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connect(reply, SIGNAL(finished()), this, SLOT(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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// This function should always emit something
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void HttpRequest::requestFinished(){
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if (reply->error() != QNetworkReply::OperationCanceledError) {
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networkTimer->stop();
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QString response = reply->readAll();
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if (reply->error() == QNetworkReply::NoError) {
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// save to cache
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if (!cache_key.isEmpty()) {
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Params().put(cache_key.toStdString(), response.toStdString());
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}
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emit receivedResponse(response);
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} else {
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if (!cache_key.isEmpty()) {
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Params().remove(cache_key.toStdString());
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}
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emit failedResponse(reply->errorString());
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}
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} else {
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emit timeoutResponse("timeout");
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}
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reply->deleteLater();
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reply = NULL;
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}
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