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442 lines
18 KiB
C++
442 lines
18 KiB
C++
//
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// DomainServerSettingsManager.cpp
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// domain-server/src
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//
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// Created by Stephen Birarda on 2014-06-24.
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// Copyright 2014 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include <QtCore/QCoreApplication>
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#include <QtCore/QDir>
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#include <QtCore/QFile>
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#include <QtCore/QJsonArray>
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#include <QtCore/QJsonObject>
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#include <QtCore/QStandardPaths>
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#include <QtCore/QUrl>
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#include <QtCore/QUrlQuery>
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#include <Assignment.h>
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#include <HifiConfigVariantMap.h>
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#include <HTTPConnection.h>
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#include "DomainServerSettingsManager.h"
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const QString SETTINGS_DESCRIPTION_RELATIVE_PATH = "/resources/describe-settings.json";
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const QString DESCRIPTION_SETTINGS_KEY = "settings";
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const QString SETTING_DEFAULT_KEY = "default";
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const QString DESCRIPTION_NAME_KEY = "name";
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const QString SETTING_DESCRIPTION_TYPE_KEY = "type";
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const QString DESCRIPTION_COLUMNS_KEY = "columns";
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const QString SETTINGS_VIEWPOINT_KEY = "viewpoint";
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DomainServerSettingsManager::DomainServerSettingsManager() :
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_descriptionArray(),
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_configMap()
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{
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// load the description object from the settings description
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QFile descriptionFile(QCoreApplication::applicationDirPath() + SETTINGS_DESCRIPTION_RELATIVE_PATH);
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descriptionFile.open(QIODevice::ReadOnly);
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_descriptionArray = QJsonDocument::fromJson(descriptionFile.readAll()).array();
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}
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void DomainServerSettingsManager::setupConfigMap(const QStringList& argumentList) {
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_configMap.loadMasterAndUserConfig(argumentList);
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// for now we perform a temporary transition from http-username and http-password to http_username and http_password
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const QVariant* oldUsername = valueForKeyPath(_configMap.getUserConfig(), "security.http-username");
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const QVariant* oldPassword = valueForKeyPath(_configMap.getUserConfig(), "security.http-password");
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if (oldUsername || oldPassword) {
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QVariantMap& settingsMap = *reinterpret_cast<QVariantMap*>(_configMap.getUserConfig()["security"].data());
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// remove old keys, move to new format
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if (oldUsername) {
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settingsMap["http_username"] = oldUsername->toString();
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settingsMap.remove("http-username");
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}
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if (oldPassword) {
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settingsMap["http_password"] = oldPassword->toString();
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settingsMap.remove("http-password");
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}
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// save the updated settings
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persistToFile();
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}
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}
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QVariant DomainServerSettingsManager::valueOrDefaultValueForKeyPath(const QString &keyPath) {
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const QVariant* foundValue = valueForKeyPath(_configMap.getMergedConfig(), keyPath);
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if (foundValue) {
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return *foundValue;
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} else {
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int dotIndex = keyPath.indexOf('.');
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QString groupKey = keyPath.mid(0, dotIndex);
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QString settingKey = keyPath.mid(dotIndex + 1);
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foreach(const QVariant& group, _descriptionArray.toVariantList()) {
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QVariantMap groupMap = group.toMap();
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if (groupMap[DESCRIPTION_NAME_KEY].toString() == groupKey) {
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foreach(const QVariant& setting, groupMap[DESCRIPTION_SETTINGS_KEY].toList()) {
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QVariantMap settingMap = setting.toMap();
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if (settingMap[DESCRIPTION_NAME_KEY].toString() == settingKey) {
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return settingMap[SETTING_DEFAULT_KEY];
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}
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}
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return QVariant();
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}
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}
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}
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return QVariant();
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}
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const QString SETTINGS_PATH = "/settings.json";
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bool DomainServerSettingsManager::handlePublicHTTPRequest(HTTPConnection* connection, const QUrl &url) {
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if (connection->requestOperation() == QNetworkAccessManager::GetOperation && url.path() == SETTINGS_PATH) {
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// this is a GET operation for our settings
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// check if there is a query parameter for settings affecting a particular type of assignment
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const QString SETTINGS_TYPE_QUERY_KEY = "type";
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QUrlQuery settingsQuery(url);
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QString typeValue = settingsQuery.queryItemValue(SETTINGS_TYPE_QUERY_KEY);
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if (!typeValue.isEmpty()) {
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QJsonObject responseObject = responseObjectForType(typeValue);
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connection->respond(HTTPConnection::StatusCode200, QJsonDocument(responseObject).toJson(), "application/json");
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return true;
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} else {
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return false;
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}
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}
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return false;
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}
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bool DomainServerSettingsManager::handleAuthenticatedHTTPRequest(HTTPConnection *connection, const QUrl &url) {
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if (connection->requestOperation() == QNetworkAccessManager::PostOperation && url.path() == SETTINGS_PATH) {
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// this is a POST operation to change one or more settings
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QJsonDocument postedDocument = QJsonDocument::fromJson(connection->requestContent());
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QJsonObject postedObject = postedDocument.object();
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qDebug() << "DomainServerSettingsManager postedObject -" << postedObject;
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// we recurse one level deep below each group for the appropriate setting
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recurseJSONObjectAndOverwriteSettings(postedObject, _configMap.getUserConfig());
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// store whatever the current _settingsMap is to file
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persistToFile();
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// return success to the caller
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QString jsonSuccess = "{\"status\": \"success\"}";
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connection->respond(HTTPConnection::StatusCode200, jsonSuccess.toUtf8(), "application/json");
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// defer a restart to the domain-server, this gives our HTTPConnection enough time to respond
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const int DOMAIN_SERVER_RESTART_TIMER_MSECS = 1000;
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QTimer::singleShot(DOMAIN_SERVER_RESTART_TIMER_MSECS, qApp, SLOT(restart()));
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return true;
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} else if (connection->requestOperation() == QNetworkAccessManager::GetOperation && url.path() == SETTINGS_PATH) {
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// setup a JSON Object with descriptions and non-omitted settings
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const QString SETTINGS_RESPONSE_DESCRIPTION_KEY = "descriptions";
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const QString SETTINGS_RESPONSE_VALUE_KEY = "values";
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const QString SETTINGS_RESPONSE_LOCKED_VALUES_KEY = "locked";
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QJsonObject rootObject;
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rootObject[SETTINGS_RESPONSE_DESCRIPTION_KEY] = _descriptionArray;
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rootObject[SETTINGS_RESPONSE_VALUE_KEY] = responseObjectForType("", true);
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rootObject[SETTINGS_RESPONSE_LOCKED_VALUES_KEY] = QJsonDocument::fromVariant(_configMap.getMasterConfig()).object();
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connection->respond(HTTPConnection::StatusCode200, QJsonDocument(rootObject).toJson(), "application/json");
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}
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return false;
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}
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QJsonObject DomainServerSettingsManager::responseObjectForType(const QString& typeValue, bool isAuthenticated) {
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QJsonObject responseObject;
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if (!typeValue.isEmpty() || isAuthenticated) {
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// convert the string type value to a QJsonValue
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QJsonValue queryType = typeValue.isEmpty() ? QJsonValue() : QJsonValue(typeValue.toInt());
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const QString AFFECTED_TYPES_JSON_KEY = "assignment-types";
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// enumerate the groups in the description object to find which settings to pass
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foreach(const QJsonValue& groupValue, _descriptionArray) {
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QJsonObject groupObject = groupValue.toObject();
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QString groupKey = groupObject[DESCRIPTION_NAME_KEY].toString();
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QJsonArray groupSettingsArray = groupObject[DESCRIPTION_SETTINGS_KEY].toArray();
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QJsonObject groupResponseObject;
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foreach(const QJsonValue& settingValue, groupSettingsArray) {
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const QString VALUE_HIDDEN_FLAG_KEY = "value-hidden";
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QJsonObject settingObject = settingValue.toObject();
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if (!settingObject[VALUE_HIDDEN_FLAG_KEY].toBool()) {
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QJsonArray affectedTypesArray = settingObject[AFFECTED_TYPES_JSON_KEY].toArray();
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if (affectedTypesArray.isEmpty()) {
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affectedTypesArray = groupObject[AFFECTED_TYPES_JSON_KEY].toArray();
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}
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if (affectedTypesArray.contains(queryType) ||
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(queryType.isNull() && isAuthenticated)) {
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// this is a setting we should include in the responseObject
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QString settingName = settingObject[DESCRIPTION_NAME_KEY].toString();
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// we need to check if the settings map has a value for this setting
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QVariant variantValue;
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if (!groupKey.isEmpty()) {
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QVariant settingsMapGroupValue = _configMap.getMergedConfig().value(groupKey);
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if (!settingsMapGroupValue.isNull()) {
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variantValue = settingsMapGroupValue.toMap().value(settingName);
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}
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} else {
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variantValue = _configMap.getMergedConfig().value(settingName);
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}
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QJsonValue result;
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if (variantValue.isNull()) {
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// no value for this setting, pass the default
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if (settingObject.contains(SETTING_DEFAULT_KEY)) {
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result = settingObject[SETTING_DEFAULT_KEY];
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} else {
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// users are allowed not to provide a default for string values
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// if so we set to the empty string
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result = QString("");
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}
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} else {
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result = QJsonValue::fromVariant(variantValue);
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}
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if (!groupKey.isEmpty()) {
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// this belongs in the group object
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groupResponseObject[settingName] = result;
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} else {
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// this is a value that should be at the root
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responseObject[settingName] = result;
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}
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}
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}
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}
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if (!groupKey.isEmpty() && !groupResponseObject.isEmpty()) {
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// set this group's object to the constructed object
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responseObject[groupKey] = groupResponseObject;
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}
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}
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}
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return responseObject;
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}
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void DomainServerSettingsManager::updateSetting(const QString& key, const QJsonValue& newValue, QVariantMap& settingMap,
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const QJsonObject& settingDescription) {
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if (newValue.isString()) {
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if (newValue.toString().isEmpty()) {
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// this is an empty value, clear it in settings variant so the default is sent
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settingMap.remove(key);
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} else {
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// make sure the resulting json value has the right type
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QString settingType = settingDescription[SETTING_DESCRIPTION_TYPE_KEY].toString();
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const QString INPUT_DOUBLE_TYPE = "double";
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const QString INPUT_INTEGER_TYPE = "int";
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if (settingType == INPUT_DOUBLE_TYPE) {
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settingMap[key] = newValue.toString().toDouble();
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} else if (settingType == INPUT_INTEGER_TYPE) {
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settingMap[key] = newValue.toString().toInt();
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} else {
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QString sanitizedValue = newValue.toString();
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// we perform special handling for viewpoints here
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// we do not want them to be prepended with a slash
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if (key == SETTINGS_VIEWPOINT_KEY && !sanitizedValue.startsWith('/')) {
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sanitizedValue.prepend('/');
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}
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qDebug() << "Setting" << key << "in" << settingMap << "to" << sanitizedValue;
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settingMap[key] = sanitizedValue;
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}
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}
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} else if (newValue.isBool()) {
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settingMap[key] = newValue.toBool();
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} else if (newValue.isObject()) {
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if (!settingMap.contains(key)) {
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// we don't have a map below this key yet, so set it up now
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settingMap[key] = QVariantMap();
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}
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QVariant& possibleMap = settingMap[key];
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if (!possibleMap.canConvert(QMetaType::QVariantMap)) {
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// if this isn't a map then we need to make it one, otherwise we're about to crash
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qDebug() << "Value at" << key << "was not the expected QVariantMap while updating DS settings"
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<< "- removing existing value and making it a QVariantMap";
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possibleMap = QVariantMap();
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}
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QVariantMap& thisMap = *reinterpret_cast<QVariantMap*>(possibleMap.data());
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foreach(const QString childKey, newValue.toObject().keys()) {
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QJsonObject childDescriptionObject = settingDescription;
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// is this the key? if so we have the description already
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if (key != settingDescription[DESCRIPTION_NAME_KEY].toString()) {
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// otherwise find the description object for this childKey under columns
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foreach(const QJsonValue& column, settingDescription[DESCRIPTION_COLUMNS_KEY].toArray()) {
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if (column.isObject()) {
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QJsonObject thisDescription = column.toObject();
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if (thisDescription[DESCRIPTION_NAME_KEY] == childKey) {
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childDescriptionObject = column.toObject();
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break;
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}
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}
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}
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}
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QString sanitizedKey = childKey;
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if (key == SETTINGS_PATHS_KEY && !sanitizedKey.startsWith('/')) {
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// We perform special handling for paths here.
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// If we got sent a path without a leading slash then we add it.
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sanitizedKey.prepend("/");
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}
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updateSetting(sanitizedKey, newValue.toObject()[childKey], thisMap, childDescriptionObject);
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}
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}
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if (settingMap[key].toMap().isEmpty()) {
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// we've cleared all of the settings below this value, so remove this one too
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settingMap.remove(key);
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}
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}
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QJsonObject DomainServerSettingsManager::settingDescriptionFromGroup(const QJsonObject& groupObject, const QString& settingName) {
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foreach(const QJsonValue& settingValue, groupObject[DESCRIPTION_SETTINGS_KEY].toArray()) {
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QJsonObject settingObject = settingValue.toObject();
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if (settingObject[DESCRIPTION_NAME_KEY].toString() == settingName) {
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return settingObject;
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}
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}
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return QJsonObject();
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}
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void DomainServerSettingsManager::recurseJSONObjectAndOverwriteSettings(const QJsonObject& postedObject,
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QVariantMap& settingsVariant) {
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// Iterate on the setting groups
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foreach(const QString& rootKey, postedObject.keys()) {
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QJsonValue rootValue = postedObject[rootKey];
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if (!settingsVariant.contains(rootKey)) {
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// we don't have a map below this key yet, so set it up now
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settingsVariant[rootKey] = QVariantMap();
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}
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QVariantMap* thisMap = &settingsVariant;
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QJsonObject groupDescriptionObject;
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// we need to check the description array to see if this is a root setting or a group setting
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foreach(const QJsonValue& groupValue, _descriptionArray) {
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if (groupValue.toObject()[DESCRIPTION_NAME_KEY] == rootKey) {
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// we matched a group - keep this since we'll use it below to update the settings
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groupDescriptionObject = groupValue.toObject();
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// change the map we will update to be the map for this group
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thisMap = reinterpret_cast<QVariantMap*>(settingsVariant[rootKey].data());
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break;
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}
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}
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if (groupDescriptionObject.isEmpty()) {
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// this is a root value, so we can call updateSetting for it directly
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// first we need to find our description value for it
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QJsonObject matchingDescriptionObject;
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foreach(const QJsonValue& groupValue, _descriptionArray) {
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// find groups with root values (they don't have a group name)
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QJsonObject groupObject = groupValue.toObject();
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if (!groupObject.contains(DESCRIPTION_NAME_KEY)) {
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// this is a group with root values - check if our setting is in here
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matchingDescriptionObject = settingDescriptionFromGroup(groupObject, rootKey);
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if (!matchingDescriptionObject.isEmpty()) {
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break;
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}
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}
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}
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if (!matchingDescriptionObject.isEmpty()) {
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updateSetting(rootKey, rootValue, *thisMap, matchingDescriptionObject);
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} else {
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qDebug() << "Setting for root key" << rootKey << "does not exist - cannot update setting.";
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}
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} else {
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// this is a group - iterate on the settings in the group
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foreach(const QString& settingKey, rootValue.toObject().keys()) {
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// make sure this particular setting exists and we have a description object for it
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QJsonObject matchingDescriptionObject = settingDescriptionFromGroup(groupDescriptionObject, settingKey);
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// if we matched the setting then update the value
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if (!matchingDescriptionObject.isEmpty()) {
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QJsonValue settingValue = rootValue.toObject()[settingKey];
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updateSetting(settingKey, settingValue, *thisMap, matchingDescriptionObject);
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} else {
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qDebug() << "Could not find description for setting" << settingKey << "in group" << rootKey <<
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"- cannot update setting.";
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}
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}
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}
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if (settingsVariant[rootKey].toMap().empty()) {
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// we've cleared all of the settings below this value, so remove this one too
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settingsVariant.remove(rootKey);
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}
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}
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}
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void DomainServerSettingsManager::persistToFile() {
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// make sure we have the dir the settings file is supposed to live in
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QFileInfo settingsFileInfo(_configMap.getUserConfigFilename());
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if (!settingsFileInfo.dir().exists()) {
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settingsFileInfo.dir().mkpath(".");
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}
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QFile settingsFile(_configMap.getUserConfigFilename());
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if (settingsFile.open(QIODevice::WriteOnly)) {
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settingsFile.write(QJsonDocument::fromVariant(_configMap.getUserConfig()).toJson());
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} else {
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qCritical("Could not write to JSON settings file. Unable to persist settings.");
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}
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}
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