/* Fannyapp - Application to view the cover plan of the Fanny-Leicht-Gymnasium ins Stuttgart Vaihingen, Germany Copyright (C) 2019 Itsblue Development This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . */ #include "headers/serverconn.h" ServerConn * pGlobalServConn = nullptr; ServerConn::ServerConn(QObject *parent) : QObject(parent) { qDebug("+----- ServerConn konstruktor -----+"); pGlobalServConn = this; this->networkManager = new QNetworkAccessManager(); this->refreshNetworkManager = new QNetworkAccessManager(); // check login state int perm = pGlobalAppSettings->loadSetting("permanent").toInt(); qDebug() << "+----- login state: " << perm << " -----+"; if(perm == 1){ // permanent login -> restore login this->username = pGlobalAppSettings->loadSetting("username"); this->password = pGlobalAppSettings->loadSetting("password"); this->setState("loggedIn"); } else { this->setState("notLoggedIn"); } this->checkConnTimer = new QTimer(); this->checkConnTimer->setInterval(1000); this->checkConnTimer->setSingleShot(true); connect(checkConnTimer, SIGNAL(timeout()), this, SLOT(checkConn())); this->checkConnTimer->start(); } int ServerConn::login(QString username, QString password, bool permanent) { // add the data to the request QUrlQuery pdata; pdata.addQueryItem("username", username); pdata.addQueryItem("password", password); // send the request ReturnData_t ret = this->senddata(QUrl("http://www.fanny-leicht.de/j34/templates/g5_helium/intern/events.php"), pdata); if(ret.status_code == 200){ // if not 200 was returned -> user data was correct // store username and password in the class variables this->username = username; this->password = password; if(permanent){ // if the user wants to say logged in, store the username and password to the settings file pGlobalAppSettings->writeSetting("permanent", "1"); pGlobalAppSettings->writeSetting("username", username); pGlobalAppSettings->writeSetting("password", password); } // set state to loggedIn this->setState("loggedIn"); qDebug() << "+----- logged in -----+"; // return success return(200); } else { // if not 200 was returned -> error -> return the return code this->setState("notLoggedIn"); return(ret.status_code); } } int ServerConn::logout() { // reset the data stored in the class this->username = ""; this->password = ""; // reset the data stored in the settings pGlobalAppSettings->writeSetting("permanent", "0"); pGlobalAppSettings->writeSetting("username", ""); pGlobalAppSettings->writeSetting("password", ""); this->setState("notLoggedIn"); qDebug() << "+----- logout -----+"; // return success return(200); } int ServerConn::checkConn() { if(this->state == "notLoggedIn"){ return(903); } // add the data to the request QUrlQuery pdata; pdata.addQueryItem("username", this->username); pdata.addQueryItem("password", this->password); // send the request ReturnData_t ret = this->senddata(QUrl("http://www.fanny-leicht.de/j34/templates/g5_helium/intern/events.php"), pdata); if(ret.status_code == 401){ // if the stats code is 401 -> userdata is incorrect authErrorCount ++; if(authErrorCount > 3){ qDebug() << "+----- checkconn: user data is incorrect -----+"; logout(); } } this->checkConnTimer->start(); return(ret.status_code); } int ServerConn::getEvents(QString day) { if(this->state != "loggedIn"){ return(401); } // add the data to the request QUrlQuery pdata; pdata.addQueryItem("username", this->username); pdata.addQueryItem("password", this->password); pdata.addQueryItem("day", day); // send the request ReturnData_t ret = this->senddata(QUrl("http://www.fanny-leicht.de/j34/templates/g5_helium/intern/events.php"), pdata); if(ret.status_code != 200){ // if the request didn't result in a success, clear the old events, as they are probaply incorrect and return the error code this->m_events.clear(); return(ret.status_code); } // get the filers list for later usage QList filtersList = pGlobalAppSettings->readFilters(); // remove all elements from the filters list, that do not match the current mode ( teacher / student ) of the app for(int i = 0; i < filtersList.length(); i++){ QStringList filterList = filtersList[i]; if( !(pGlobalAppSettings->loadSetting("teacherMode") == "true" ? filterList[2] == "t":filterList[2] == "s") ){ filtersList.removeAt(i); i = i-1; } } // list to be returned QList tmpEvents; QStringList tmpEventHeader; //qDebug() << jsonString; QJsonDocument jsonFilters = QJsonDocument::fromJson(ret.text.toUtf8()); // array with all filters in it QJsonObject dataArray = jsonFilters.object(); // get the version of the json format QString version = dataArray.value("version").toString(); // get the header data tmpEventHeader.append(dataArray.value("targetDate").toString()); tmpEventHeader.append(dataArray.value("stewardingClass").toString()); // expand the length of the header list to seven to prevent list out of range errors while (tmpEventHeader.length() < 7) { tmpEventHeader.append(""); } // append the header to the temporyry event list tmpEvents.append(tmpEventHeader); // get the event data QJsonArray eventsArray = dataArray.value("events").toArray(); for(int i=0; i not needed when there is no data) tmpEvents.takeLast(); // set return code to 'no data' (901) ret.status_code = 901; } this->m_events = tmpEvents; return(ret.status_code); } int ServerConn::getFoodPlan() { QUrlQuery pdata; ReturnData_t ret = this->senddata(QUrl("http://www.treffpunkt-fanny.de/fuer-schueler-und-lehrer/speiseplan.html"), pdata); if(ret.status_code != 200){ // if the request didn't result in a success, return the error code // if the request failed but there is still old data available if(!this->m_weekplan.isEmpty()){ // set the status code to 902 (old data) ret.status_code = 902; } return(ret.status_code); } // initialize the weekplan to store information to it QList> temp_weekplan; // m_weekplan is a list, that contains a list for each day, which contains: cookteam, date, main dish, vagi main dish, garnish(Beilage) and Dessert. // read the whole website QString returnedData = ret.text; // remove unnecessary stuff returnedData.replace("\n",""); returnedData.replace("\r",""); returnedData.replace("\t",""); // workaround for changing html syntax returnedData.replace("style=\"width: 25%;\"", "width=\"25%\""); // split the string at the beginning of the tables QStringList documentList = returnedData.split( "" ); // enshure that the data is valid if(documentList.length() < 2){ return(900); } //---------- prepare the table of the first week ---------- QString table1 = documentList[1]; // enshure that the data is valid if(table1.split( "
" ).length() < 1){ return(900); } // remove everything after "" table1 = table1.split( "" )[0]; // remove "" at the beginning table1.remove(0,71); //remove "" at the end table1 = table1.left(table1.length() - 13); //split at the days to get a list of all days QStringList table1list = table1.split(""); // enshure that the data is valid if(table1list.length() < 5){ return(900); } //remove the first item, as it is empty table1list.takeFirst(); //---------- prepare the table of the second week ---------- QString table2 = documentList[2]; // enshure that the data is valid if(table2.split( "" ).length() < 1){ return(900); } //remove everything after "" table2 = table2.split( "" )[0]; //remove "" at the beginning table2.remove(0,39); //remove "" at the end table2.remove(table2.length() - 13, table2.length()); //split at the days to get a list of all days QStringList table2list = table2.split(""); // enshure that the data is valid if(table2list.length() < 5){ return(900); } //remove the first item, as it is empty table2list.takeFirst(); //---------- put both weeks into one big list ---------- QStringList weeklist = table1list + table2list; //---------- go through all days and split the day-string into the different types of information ---------- for (int i = 0; i <=7; i ++){ if(i > weeklist.length()){ // if the loop exceeds the length of the wweklist some kind of eror occured return 900; } // store item temporarly to edit it QString day = weeklist[i]; // remove "" at the and of the Item day = day.left(day.length()-5); // table list[i] looks now like: | clould be: // cookteam | Red Hot Chili Peppers //
|
// date | 26.06.2018 //
mainDish |
Gulasch mit Kartoffeln //
mainDishVeg |
Pellkartoffeln mit Quark //
garnish |
Gemischter Salat //
dessert |
Eaton Mess ( Erdbeer-Nachtisch ) // split item at strong, to get the cookteam and the date QStringList daylist = day.split(""); day = ""; // convert the list to a big string for (int i = 0; i <= 2; i ++){ if(i <= daylist.length()){ day += daylist[i]; } } day.replace("
",""); daylist = day.split("
"); // store cookteam and date in the temp_weekplan //temp_weekplan.append({daylist[0], daylist[1]}); // store information in day // (looks like: "
MainDish
MainDishVeg
Garnish
Dessert") // (could be: "
Gulasch mit Kartoffeln
Pellkartoffeln mit Quark
Gemischter Salat
Eaton Mess ( Erdbeer-Nachtisch )") day = daylist.takeLast(); // seperate the information daylist.append(day.split("
")); // remove the item that is emplty from the list daylist.removeAt(2); //---------- check if the day is aleady over ---------- // get the datestring QString dateString = daylist[1]; // convert it to a valid QDate QDateTime date = QDateTime::fromString(dateString,"dd.MM.yyyy"); // get the current date and time QDateTime currentDateTime = QDateTime::currentDateTimeUtc(); // check if the given day is still in the future or today (then it is valid) if(date.toTime_t() > currentDateTime.toTime_t() || date.date() == currentDateTime.date()){ // add the rest of the information to the temp_weekplan qDebug() << "day valid:" << daylist; //---------- convert the date to a readable string ---------- QString readableDateString; if(date.date() == currentDateTime.date()){ // the given day is today readableDateString = "Heute"; } else if (date.toTime_t() < ( currentDateTime.toTime_t() + ( 24 * 60 * 60 ))) { // the given day is tomorrow readableDateString = "Morgen"; } else { readableDateString = date.toString("dddd, d.M.yy"); } qDebug() << readableDateString; // insert the redable tring into the daylist daylist[1] = readableDateString; // append the day to the weeklist temp_weekplan.append({daylist[0], daylist[1], daylist[2], daylist[3], daylist[4], daylist[5]}); } } // write data to global foodplan this->m_weekplan = temp_weekplan; // check if there is any valid data if(this->m_weekplan.isEmpty()){ // no data return(901); } // success return(200); } ReturnData_t ServerConn::senddata(QUrl serviceUrl, QUrlQuery pdata) { ReturnData_t ret; //this is a custom type to store the return-data // Create network request QNetworkRequest request(serviceUrl); request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded"); //set ssl configuration //send a POST request with the given url and data to the server QNetworkReply* reply; reply = this->networkManager->post(request, pdata.toString(QUrl::FullyEncoded).toUtf8()); // loop to wait until the request has finished before processing the data QEventLoop loop; // timer to cancel the request after 3 seconds QTimer timer; timer.setSingleShot(true); // quit the loop when the request finised loop.connect(this->networkManager, SIGNAL(finished(QNetworkReply*)), SLOT(quit())); // or the timer timed out loop.connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit())); // start the timer timer.start(4000); // start the loop loop.exec(); //get the status code QVariant status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute); ret.status_code = status_code.toInt(); //get the full text response ret.text = QString::fromUtf8(reply->readAll()); if(reply->isOpen()){ delete reply; } //return the data return(ret); } QString ServerConn::getState() { return(this->state); } void ServerConn::setState(QString state) { if(state != this->state){ qDebug() << "+----- serverconn has new state: " + state + " -----+"; this->state = state; this->stateChanged(this->state); } } ServerConn::~ServerConn() { qDebug("+----- ServerConn destruktor -----+"); delete this->networkManager; delete this->refreshNetworkManager; }