QISPOSParser [Part 1]

* get the grades url from qispos
2020-08-13 21:01:21 +02:00 · 2020-08-13 21:01:21 +02:00 · ff0c4ad1a7
parent ea0caea91e
commit ff0c4ad1a7
14 changed files with 356 additions and 243 deletions
--- a/app/build.gradle
+++ b/app/build.gradle
@ -63,6 +63,7 @@ dependencies {
    implementation 'de.psdev.licensesdialog:licensesdialog:2.1.0'

    implementation 'org.apache.commons:commons-lang3:3.10'
+    implementation 'org.jsoup:jsoup:1.13.1'

    testImplementation 'junit:junit:4.13'
    androidTestImplementation 'androidx.test:core:1.2.0'
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt
@ -43,12 +43,13 @@ import com.afollestad.aesthetic.NavigationViewMode
 import com.google.android.material.navigation.NavigationView
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.app_bar_main.*
-import org.mosad.seil0.projectlaogai.controller.cache.CacheController
 import org.mosad.seil0.projectlaogai.controller.NFCMensaCard
-import org.mosad.seil0.projectlaogai.controller.PreferencesController
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorAccent
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorPrimary
-import org.mosad.seil0.projectlaogai.controller.login.LoginController
+import org.mosad.seil0.projectlaogai.controller.QISPOSParser
+import org.mosad.seil0.projectlaogai.controller.cache.CacheController
+import org.mosad.seil0.projectlaogai.controller.preferences.EncryptedPreferences
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cColorAccent
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cColorPrimary
 import org.mosad.seil0.projectlaogai.fragments.*
 import kotlin.system.measureTimeMillis

@ -173,9 +174,13 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
     */
    private fun load() {
        val startupTime = measureTimeMillis {
-            PreferencesController.load(this) // load the settings, must be finished before doing anything else
+            Preferences.load(this) // load the settings, must be finished before doing anything else
            CacheController(this) // load the cache
-            LoginController.load(this)
+            EncryptedPreferences.load(this)
+
+            val parser = QISPOSParser()
+            parser.test(applicationContext)
+
        }
        Log.i(className, "startup completed in $startupTime ms")
    }
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/NFCMensaCard.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/NFCMensaCard.kt
@ -35,6 +35,7 @@ import com.codebutler.farebot.card.desfire.DesfireFileSettings
 import com.codebutler.farebot.card.desfire.DesfireProtocol
 import kotlinx.android.synthetic.main.dialog_mensa_credit.*
 import org.mosad.seil0.projectlaogai.R
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences
 import java.lang.Exception

 class NFCMensaCard {
@ -84,13 +85,13 @@ class NFCMensaCard {
            val dialog = MaterialDialog(context)
                .customView(R.layout.dialog_mensa_credit)

-            val current = if (!PreferencesController.oGiants) {
+            val current = if (!Preferences.oGiants) {
                String.format("%.2f €", (currentRaw.toFloat() / 1000))
            } else {
                String.format("%.4f shm", (currentRaw.toFloat() * 0.0000075))
            }

-            val last = if (!PreferencesController.oGiants) {
+            val last = if (!Preferences.oGiants) {
                String.format("%.2f €", (lastRaw.toFloat() / 1000))
            } else {
                String.format("%.4f shm", (lastRaw.toFloat() * 0.0000075))
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/PreferencesController.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/PreferencesController.kt
@ -1,189 +0,0 @@
-/**
- * ProjectLaogai
- *
- * Copyright 2019-2020  <seil0@mosad.xyz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301, USA.
- *
- */
-
-package org.mosad.seil0.projectlaogai.controller
-
-import android.content.Context
-import android.graphics.Color
-import org.mosad.seil0.projectlaogai.R
-import org.mosad.seil0.projectlaogai.util.Course
-
-/**
- * The PreferencesController class
- * contains all preferences and global variables that exist in this app
- */
-class PreferencesController {
-
-    companion object {
-        var coursesCacheTime: Long = 0
-        var mensaCacheTime: Long = 0
-        var timetableCacheTime: Long = 0
-        var cColorPrimary: Int = Color.parseColor("#009688")
-        var cColorAccent: Int = Color.parseColor("#0096ff")
-        var cCourse = Course(
-            "https://www.hs-offenburg.de/index.php?id=6627&class=class&iddV=DA64F6FE-9DDB-429E-A677-05D0D40CB636&week=0",
-            "AI3"
-        )
-        var cShowBuffet = true
-        var oGiants = false
-
-        // the save function
-        fun save(context: Context) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            // save the update times (cache)
-            with (sharedPref.edit()) {
-                putLong(context.getString(R.string.save_key_coursesCacheTime),
-                    coursesCacheTime
-                )
-                putLong(context.getString(R.string.save_key_mensaCacheTime),
-                    mensaCacheTime
-                )
-                putLong(context.getString(R.string.save_key_timetableCacheTime),
-                    timetableCacheTime
-                )
-                apply()
-            }
-
-        }
-
-        /**
-         * save the course locally
-         */
-        fun saveCourse(context: Context, course: Course) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            with (sharedPref.edit()) {
-                putString(context.getString(R.string.save_key_course), course.courseName)
-                putString(context.getString(R.string.save_key_courseTTLink), course.courseLink)
-                apply()
-            }
-
-            cCourse = course
-        }
-
-        /**
-         * save the primary color
-         */
-        fun saveColorPrimary(context: Context, colorPrimary: Int) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            with (sharedPref.edit()) {
-                putInt(context.getString(R.string.save_key_colorPrimary),
-                    colorPrimary
-                )
-                apply()
-            }
-
-            cColorPrimary = colorPrimary
-        }
-
-        /**
-         * save the accent color
-         */
-        fun saveColorAccent(context: Context, colorAccent: Int) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            with (sharedPref.edit()) {
-                putInt(context.getString(R.string.save_key_colorAccent),
-                    colorAccent
-                )
-                apply()
-            }
-
-            cColorAccent = colorAccent
-        }
-
-        /**
-         * save showBuffet
-         */
-        fun saveShowBuffet(context: Context, showBuffet: Boolean) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            with (sharedPref.edit()) {
-                putBoolean(context.getString(R.string.save_key_showBuffet),
-                    showBuffet
-                )
-                apply()
-            }
-
-            cShowBuffet = showBuffet
-        }
-
-        // the load function
-        fun load(context: Context) {
-            val sharedPref = context.getSharedPreferences(
-                context.getString(R.string.preference_file_key),
-                Context.MODE_PRIVATE
-            )
-
-            // load the update times (cache)
-            coursesCacheTime = sharedPref.getLong(context.getString(
-                R.string.save_key_coursesCacheTime
-            ), 0)
-            mensaCacheTime = sharedPref.getLong(context.getString(
-                R.string.save_key_mensaCacheTime
-            ), 0)
-            timetableCacheTime = sharedPref.getLong(context.getString(
-                R.string.save_key_timetableCacheTime
-            ), 0)
-
-            // load saved course
-            cCourse = Course(
-                sharedPref.getString(
-                    context.getString(R.string.save_key_courseTTLink),
-                    "https://www.hs-offenburg.de/index.php?id=6627&class=class&iddV=DA64F6FE-9DDB-429E-A677-05D0D40CB636&week=0"
-                )!!,
-                sharedPref.getString(context.getString(R.string.save_key_course), "AI3")!!
-            )
-
-            // load saved colors
-            cColorPrimary = sharedPref.getInt(context.getString(
-                R.string.save_key_colorPrimary
-            ), cColorPrimary)
-            cColorAccent = sharedPref.getInt(context.getString(
-                R.string.save_key_colorAccent
-            ), cColorAccent)
-
-            // load showBuffet
-            cShowBuffet = sharedPref.getBoolean(context.getString(
-                R.string.save_key_showBuffet
-            ), true)
-        }
-    }
-
-}
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/QISPOSParser.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/QISPOSParser.kt
@ -0,0 +1,107 @@
+package org.mosad.seil0.projectlaogai.controller
+
+import android.content.Context
+import android.util.Log
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withContext
+import org.jsoup.Jsoup
+import org.mosad.seil0.projectlaogai.R
+import org.mosad.seil0.projectlaogai.controller.preferences.EncryptedPreferences
+import java.security.KeyStore
+import java.security.cert.CertificateFactory
+import java.security.cert.X509Certificate
+import javax.net.ssl.SSLContext
+import javax.net.ssl.SSLSocketFactory
+import javax.net.ssl.TrustManagerFactory
+
+class QISPOSParser {
+
+    private val className = this.javaClass.name
+    private val baseURL = "https://notenverwaltung.hs-offenburg.de"
+    private val loginPath = "/qispos/rds?state=user&type=1&category=auth.login&startpage=portal.vm&breadCrumbSource=portal"
+    private val rootPath = "/qispos/rds?state=change&type=1&moduleParameter=studyPOSMenu&nextdir=change&next=menu.vm&subdir=applications&xml=menu&purge=y&navigationPosition=functions%2CstudyPOSMenu&breadcrumb=studyPOSMenu&topitem=functions&subitem=studyPOSMenu"
+
+    fun test(context: Context) {
+
+        val credentials = EncryptedPreferences.readCredentials(context)
+        val username = credentials.first.substringBefore("@")
+        val password = credentials.second
+
+        runBlocking {
+            withContext(Dispatchers.IO) {
+                try {
+                    println("querying qispos ...")
+                    println("using $username with ********")
+
+                    val socketFactory = createSSLSocketFactory(context)
+
+                    // login, asdf = username, fdsa = password, wtf
+                    val list = mapOf(
+                        Pair("asdf", username),
+                        Pair("fdsa", password),
+                        Pair("submit", "Anmelden")
+                    )
+
+                    // login and get session cookies
+                    val res = Jsoup.connect(baseURL + loginPath)
+                        .sslSocketFactory(socketFactory)
+                        .followRedirects(true)
+                        .referrer("https://notenverwaltung.hs-offenburg.de/qispos/rds?state=user&type=0")
+                        .data(list)
+                        .postDataCharset("UTF-8")
+                        .execute()
+
+                    val loginCookies = res.cookies()
+
+                    println("cookies: $loginCookies")
+                    println("status is: ${res.statusMessage()}: ${res.statusCode()}")
+                    println(res.body())
+
+                    // grades url
+                    val test = Jsoup.parse(res.body()).select("li.menueListStyle").select("a.auflistung").last()
+                    println(test)
+
+                } catch (ex: Exception) {
+                    Log.e(className, "could not load qispos", ex)
+                }
+            }
+        }
+
+    }
+
+    private fun createSSLSocketFactory(context: Context): SSLSocketFactory {
+        // Load CAs from an InputStream
+        // (could be from a resource or ByteArrayInputStream or ...)
+        val cf: CertificateFactory = CertificateFactory.getInstance("X.509")
+        val caInput = context.resources.openRawResource(R.raw.notenverwaltung_hs_offenburg_de)
+        val ca = caInput.use {
+            cf.generateCertificate(it) as X509Certificate
+        }
+        println("ca=" + ca.subjectDN)
+
+        // Create a KeyStore containing our trusted CAs
+        val keyStoreType = KeyStore.getDefaultType()
+        val keyStore = KeyStore.getInstance(keyStoreType).apply {
+            load(null, null)
+            setCertificateEntry("ca", ca)
+        }
+
+        // Create a TrustManager that trusts the CAs inputStream our KeyStore
+        val tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm()
+        val tmf = TrustManagerFactory.getInstance(tmfAlgorithm).apply {
+            init(keyStore)
+        }
+
+        // Create an SSLContext that uses our TrustManager
+        val sslContext = SSLContext.getInstance("TLS").apply {
+            init(null, tmf.trustManagers, null)
+        }
+
+        return sslContext.socketFactory
+    }
+
+
+
+
+}
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/cache/CacheController.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/cache/CacheController.kt
@ -29,12 +29,12 @@ import com.google.gson.GsonBuilder
 import com.google.gson.JsonParser
 import com.google.gson.reflect.TypeToken
 import kotlinx.coroutines.*
-import org.mosad.seil0.projectlaogai.controller.PreferencesController
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.coursesCacheTime
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.mensaCacheTime
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.timetableCacheTime
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences
 import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cCourse
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.coursesCacheTime
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.mensaCacheTime
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.timetableCacheTime
 import org.mosad.seil0.projectlaogai.util.*
 import java.io.*
 import java.util.*
@ -122,7 +122,7 @@ class CacheController(cont: Context) {
                // save cache file and update time
                save(file, Gson().toJson(courseListUp))
                coursesCacheTime = System.currentTimeMillis() / 1000
-                PreferencesController.save(context)
+                Preferences.save(context)
            }
        }

@ -142,7 +142,7 @@ class CacheController(cont: Context) {
                // save cache file and update time
                save(file, Gson().toJson(mensaMenu))
                mensaCacheTime = System.currentTimeMillis() / 1000
-                PreferencesController.save(context)
+                Preferences.save(context)
            }
        }

@ -173,7 +173,7 @@ class CacheController(cont: Context) {
                // save cache file and update time
                save(file, Gson().toJson(timetable))
                timetableCacheTime = System.currentTimeMillis() / 1000
-                PreferencesController.save(context)
+                Preferences.save(context)
            }
        }

--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/cache/TimetableController.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/cache/TimetableController.kt
@ -24,8 +24,8 @@ package org.mosad.seil0.projectlaogai.controller.cache

 import android.content.Context
 import kotlinx.coroutines.Job
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse
 import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cCourse
 import org.mosad.seil0.projectlaogai.util.Lesson
 import org.mosad.seil0.projectlaogai.util.TimetableWeek

--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/preferences/EncryptedPreferences.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/preferences/EncryptedPreferences.kt
@ -20,7 +20,7 @@
 *
 */

-package org.mosad.seil0.projectlaogai.controller.login
+package org.mosad.seil0.projectlaogai.controller.preferences

 import android.content.Context
 import android.content.SharedPreferences
@ -31,23 +31,11 @@ import androidx.security.crypto.EncryptedSharedPreferences
 import androidx.security.crypto.MasterKey
 import org.mosad.seil0.projectlaogai.R

-object LoginController {
+object EncryptedPreferences {

    var email = ""
        internal set

-    /**
-     * initially load the users email
-     */
-    fun load(context: Context) {
-        with(getEncryptedPreferences(context)) {
-            email = this?.getString(
-                context.getString(R.string.save_key_user_email),
-                context.getString(R.string.sample_user)
-            ).toString()
-        }
-    }
-
    /**
     * save user email and password to encrypted preference
     */
@ -64,6 +52,7 @@ object LoginController {

    /**
     * read user email and password from encrypted preference
+     * @return Pair(email, password)
     */
    fun readCredentials(context: Context): Pair<String, String> {
        return with (getEncryptedPreferences(context)) {
@ -76,6 +65,18 @@ object LoginController {
        }
    }

+    /**
+     * initially load the stored values
+     */
+    fun load(context: Context) {
+        with(getEncryptedPreferences(context)) {
+            email = this?.getString(
+                context.getString(R.string.save_key_user_email),
+                context.getString(R.string.sample_user)
+            ).toString()
+        }
+    }
+
    /**
     * create a encrypted shared preference
     */
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/controller/preferences/Preferences.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/controller/preferences/Preferences.kt
@ -0,0 +1,188 @@
+/**
+ * ProjectLaogai
+ *
+ * Copyright 2019-2020  <seil0@mosad.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
+
+package org.mosad.seil0.projectlaogai.controller.preferences
+
+import android.content.Context
+import android.graphics.Color
+import org.mosad.seil0.projectlaogai.R
+import org.mosad.seil0.projectlaogai.util.Course
+
+/**
+ * The PreferencesController class
+ * contains all preferences and global variables that exist in this app
+ */
+object Preferences {
+
+    var coursesCacheTime: Long = 0
+    var mensaCacheTime: Long = 0
+    var timetableCacheTime: Long = 0
+    var cColorPrimary: Int = Color.parseColor("#009688")
+    var cColorAccent: Int = Color.parseColor("#0096ff")
+    var cCourse = Course(
+        "https://www.hs-offenburg.de/index.php?id=6627&class=class&iddV=DA64F6FE-9DDB-429E-A677-05D0D40CB636&week=0",
+        "AI3"
+    )
+    var cShowBuffet = true
+    var oGiants = false
+
+    // the save function
+    fun save(context: Context) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        // save the update times (cache)
+        with (sharedPref.edit()) {
+            putLong(context.getString(R.string.save_key_coursesCacheTime),
+                coursesCacheTime
+            )
+            putLong(context.getString(R.string.save_key_mensaCacheTime),
+                mensaCacheTime
+            )
+            putLong(context.getString(R.string.save_key_timetableCacheTime),
+                timetableCacheTime
+            )
+            apply()
+        }
+
+    }
+
+    /**
+     * save the course locally
+     */
+    fun saveCourse(context: Context, course: Course) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        with (sharedPref.edit()) {
+            putString(context.getString(R.string.save_key_course), course.courseName)
+            putString(context.getString(R.string.save_key_courseTTLink), course.courseLink)
+            apply()
+        }
+
+        cCourse = course
+    }
+
+    /**
+     * save the primary color
+     */
+    fun saveColorPrimary(context: Context, colorPrimary: Int) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        with (sharedPref.edit()) {
+            putInt(context.getString(R.string.save_key_colorPrimary),
+                colorPrimary
+            )
+            apply()
+        }
+
+        cColorPrimary = colorPrimary
+    }
+
+    /**
+     * save the accent color
+     */
+    fun saveColorAccent(context: Context, colorAccent: Int) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        with (sharedPref.edit()) {
+            putInt(context.getString(R.string.save_key_colorAccent),
+                colorAccent
+            )
+            apply()
+        }
+
+        cColorAccent = colorAccent
+    }
+
+    /**
+     * save showBuffet
+     */
+    fun saveShowBuffet(context: Context, showBuffet: Boolean) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        with (sharedPref.edit()) {
+            putBoolean(context.getString(R.string.save_key_showBuffet),
+                showBuffet
+            )
+            apply()
+        }
+
+        cShowBuffet = showBuffet
+    }
+
+    /**
+     * initially load the stored values
+     */
+    fun load(context: Context) {
+        val sharedPref = context.getSharedPreferences(
+            context.getString(R.string.preference_file_key),
+            Context.MODE_PRIVATE
+        )
+
+        // load the update times (cache)
+        coursesCacheTime = sharedPref.getLong(context.getString(
+                R.string.save_key_coursesCacheTime
+            ), 0)
+        mensaCacheTime = sharedPref.getLong(context.getString(
+                R.string.save_key_mensaCacheTime
+            ), 0)
+        timetableCacheTime = sharedPref.getLong(context.getString(
+                R.string.save_key_timetableCacheTime
+            ), 0)
+
+        // load saved course
+        cCourse = Course(
+            sharedPref.getString(context.getString(R.string.save_key_courseTTLink),
+                "https://www.hs-offenburg.de/index.php?id=6627&class=class&iddV=DA64F6FE-9DDB-429E-A677-05D0D40CB636&week=0"
+            )!!,
+            sharedPref.getString(context.getString(R.string.save_key_course), "AI3")!!
+        )
+
+        // load saved colors
+        cColorPrimary = sharedPref.getInt(context.getString(
+                R.string.save_key_colorPrimary
+            ), cColorPrimary)
+        cColorAccent = sharedPref.getInt(context.getString(
+                R.string.save_key_colorAccent
+            ), cColorAccent)
+
+        // load showBuffet
+        cShowBuffet = sharedPref.getBoolean(context.getString(
+                R.string.save_key_showBuffet
+            ), true)
+    }
+
+}
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/MensaFragment.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/MensaFragment.kt
@ -35,7 +35,7 @@ import kotlinx.coroutines.withContext
 import org.mosad.seil0.projectlaogai.R
 import org.mosad.seil0.projectlaogai.controller.cache.CacheController
 import org.mosad.seil0.projectlaogai.controller.cache.CacheController.Companion.mensaMenu
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cShowBuffet
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cShowBuffet
 import org.mosad.seil0.projectlaogai.util.MensaWeek
 import org.mosad.seil0.projectlaogai.uicomponents.DayCardView
 import org.mosad.seil0.projectlaogai.uicomponents.MealLinearLayout
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/SettingsFragment.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/fragments/SettingsFragment.kt
@ -49,13 +49,13 @@ import org.mosad.seil0.projectlaogai.BuildConfig
 import org.mosad.seil0.projectlaogai.R
 import org.mosad.seil0.projectlaogai.controller.cache.CacheController
 import org.mosad.seil0.projectlaogai.controller.cache.CacheController.Companion.coursesList
-import org.mosad.seil0.projectlaogai.controller.PreferencesController
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorAccent
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorPrimary
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse
-import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cShowBuffet
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences
 import org.mosad.seil0.projectlaogai.controller.cache.TimetableController
-import org.mosad.seil0.projectlaogai.controller.login.LoginController
+import org.mosad.seil0.projectlaogai.controller.preferences.EncryptedPreferences
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cColorAccent
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cColorPrimary
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cCourse
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences.cShowBuffet
 import org.mosad.seil0.projectlaogai.uicomponents.dialogs.LoginDialog
 import org.mosad.seil0.projectlaogai.util.DataTypes
 import java.util.*
@ -105,7 +105,7 @@ class SettingsFragment : Fragment() {
        super.onViewCreated(view, savedInstanceState)

        // initialize the settings gui
-        txtView_User.text = LoginController.email
+        txtView_User.text = EncryptedPreferences.email
        txtView_Course.text = cCourse.courseName
        txtView_AboutDesc.text =  resources.getString(R.string.about_version, BuildConfig.VERSION_NAME, getString(R.string.build_time))
        switch_buffet.isChecked = cShowBuffet // init switch
@ -141,16 +141,16 @@ class SettingsFragment : Fragment() {
            LoginDialog(context!!)
                .positiveButton {
                    println("Test: $password")
-                    LoginController.saveCredentials(email, password, context)
+                    EncryptedPreferences.saveCredentials(email, password, context)
                }
                .show {
-                    email = LoginController.email
+                    email = EncryptedPreferences.email
                    password = ""
                }
        }

        linLayoutUser.setOnLongClickListener {
-            PreferencesController.oGiants = true // enable easter egg
+            Preferences.oGiants = true // enable easter egg
            return@setOnLongClickListener true
        }

@ -181,7 +181,6 @@ class SettingsFragment : Fragment() {
                    items.forEach {
                        val list = it.split(" - ")
                        TimetableController.removeSubject(list[0], list[1], context)
-                        // TODO save
                    }
                }
            }
@ -254,7 +253,7 @@ class SettingsFragment : Fragment() {
                        colorPrimaryDark(color)
                        apply()
                    }
-                    PreferencesController.saveColorPrimary(context!!, color)
+                    Preferences.saveColorPrimary(context!!, color)
                }
                .show {
                    title(R.string.primary_color)
@ -274,7 +273,7 @@ class SettingsFragment : Fragment() {
                        apply()
                    }

-                    PreferencesController.saveColorAccent(context!!, color)
+                    Preferences.saveColorAccent(context!!, color)
                }
                .show{
                    title(R.string.accent_color)
@ -284,7 +283,7 @@ class SettingsFragment : Fragment() {
        }

        switchBuffet.setOnClickListener {
-            PreferencesController.saveShowBuffet(context!!, switchBuffet.isChecked)
+            Preferences.saveShowBuffet(context!!, switchBuffet.isChecked)
        }

    }
@ -306,7 +305,7 @@ class SettingsFragment : Fragment() {
                loadingDialog.show()

                GlobalScope.launch(Dispatchers.Default) {
-                    PreferencesController.saveCourse(context, coursesList[index]) // save the course
+                    Preferences.saveCourse(context, coursesList[index]) // save the course

                    // update current & next weeks timetable
                    val threads = listOf(
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/uicomponents/dialogs/AddSubjectDialog.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/uicomponents/dialogs/AddSubjectDialog.kt
@ -37,7 +37,7 @@ import com.afollestad.materialdialogs.customview.customView
 import com.afollestad.materialdialogs.customview.getCustomView
 import kotlinx.coroutines.runBlocking
 import org.mosad.seil0.projectlaogai.R
-import org.mosad.seil0.projectlaogai.controller.PreferencesController
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences
 import org.mosad.seil0.projectlaogai.controller.cache.CacheController
 import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
 import org.mosad.seil0.projectlaogai.util.Course
@ -71,8 +71,8 @@ class AddSubjectDialog(val context: Context) {
        spinnerSubjects = dialog.getCustomView().findViewById(R.id.spinner_Lessons)

        // fix not working accent color
-        dialog.getActionButton(WhichButton.POSITIVE).updateTextColor(PreferencesController.cColorAccent)
-        dialog.getActionButton(WhichButton.NEGATIVE).updateTextColor(PreferencesController.cColorAccent)
+        dialog.getActionButton(WhichButton.POSITIVE).updateTextColor(Preferences.cColorAccent)
+        dialog.getActionButton(WhichButton.NEGATIVE).updateTextColor(Preferences.cColorAccent)

        initSpinners()
    }
--- a/app/src/main/java/org/mosad/seil0/projectlaogai/uicomponents/dialogs/LoginDialog.kt
+++ b/app/src/main/java/org/mosad/seil0/projectlaogai/uicomponents/dialogs/LoginDialog.kt
@ -32,7 +32,7 @@ import com.afollestad.materialdialogs.bottomsheets.setPeekHeight
 import com.afollestad.materialdialogs.customview.customView
 import com.afollestad.materialdialogs.customview.getCustomView
 import org.mosad.seil0.projectlaogai.R
-import org.mosad.seil0.projectlaogai.controller.PreferencesController
+import org.mosad.seil0.projectlaogai.controller.preferences.Preferences

 class LoginDialog(val context: Context) {

@ -56,8 +56,8 @@ class LoginDialog(val context: Context) {
        editTextPassword = dialog.getCustomView().findViewById(R.id.editText_password)

        // fix not working accent color
-        dialog.getActionButton(WhichButton.POSITIVE).updateTextColor(PreferencesController.cColorAccent)
-        dialog.getActionButton(WhichButton.NEGATIVE).updateTextColor(PreferencesController.cColorAccent)
+        dialog.getActionButton(WhichButton.POSITIVE).updateTextColor(Preferences.cColorAccent)
+        dialog.getActionButton(WhichButton.NEGATIVE).updateTextColor(Preferences.cColorAccent)
    }

    fun positiveButton(func: LoginDialog.() -> Unit): LoginDialog = apply {
--- a/app/src/main/res/raw/notenverwaltung_hs_offenburg_de.crt
+++ b/app/src/main/res/raw/notenverwaltung_hs_offenburg_de.crt