Initial xposed support

A lot still needs to be fixed/implemented
- I need to get the wifi info on a different thread, so the UI isn't blocked
- I could probable show more on the wifi info screen
- I need to find a way to show ads

app/build.gradle

@@ -25,9 +25,13 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+    //noinspection GradleCompatible
     implementation 'com.android.support:appcompat-v7:27.1.0'
     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    compileOnly 'de.robv.android.xposed:api:82'
+    compileOnly 'de.robv.android.xposed:api:82:sources'
     implementation 'com.github.kenglxn.QRGen:android:2.4.0'
+    implementation 'com.crossbowffs.remotepreferences:remotepreferences:0.5'
 
     // START AD SERVICES
     implementation('com.mopub:mopub-sdk:4.20.0@aar') {

app/proguard-rules.pro

@@ -19,3 +19,4 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+-keep class tk.superl2.xwifi.xposed.** { *; }

app/src/main/AndroidManifest.xml

@@ -19,6 +19,16 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
 
+        <meta-data
+            android:name="xposedmodule"
+            android:value="true" />
+        <meta-data
+            android:name="xposeddescription"
+            android:value="Adds an option to share a saved wifi network as a QR code in the system settings" />
+        <meta-data
+            android:name="xposedminversion"
+            android:value="82" />
+
         <meta-data android:name="applovin.sdk.key"
             android:value="NaAFA-JFGfuBZTVkWkZi7La8TdiU3vrRU_he-0uEfnPDJwyqdVWms6uPkauoUkDzkvbhvUxTFLnTFiNtDvc4_V"  />
 
@@ -32,7 +42,9 @@
         <activity
             android:name=".SettingsActivity"
             android:label="@string/title_activity_settings"
-            android:parentActivityName=".MainActivity">
+            android:parentActivityName=".MainActivity" tools:ignore="UnusedAttribute"
+            android:exported="true"
+            >
             <meta-data
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value="tk.superl2.xwifi.MainActivity" />
@@ -45,6 +57,11 @@
         <activity android:name="com.mopub.mobileads.MraidVideoPlayerActivity" android:configChanges="keyboardHidden|orientation|screenSize"/>
         <activity android:name="com.applovin.adview.AppLovinInterstitialActivity" android:configChanges="orientation|screenSize"/>
         <activity android:name="com.applovin.adview.AppLovinConfirmationActivity" android:configChanges="orientation|screenSize"/>
+
+        <provider
+            android:name=".PreferenceProvider"
+            android:authorities="tk.superl2.xwifi.preferences"
+            android:exported="true" tools:ignore="ExportedContentProvider" />
     </application>
 
 </manifest>

app/src/main/assets/xposed_init

@@ -0,0 +1 @@
+tk.superl2.xwifi.xposed.XposedModule

app/src/main/java/tk/superl2/xwifi/MainActivity.kt

@@ -1,12 +1,15 @@
 package tk.superl2.xwifi
 
+import android.Manifest
 import android.app.AlertDialog
 import android.content.Intent
-import android.content.SharedPreferences
+import android.content.pm.PackageManager
 import android.os.AsyncTask
 import android.os.Build
 import android.os.Bundle
 import android.preference.PreferenceManager
+import android.support.v4.app.ActivityCompat
+import android.support.v4.content.ContextCompat
 import android.support.v7.app.AppCompatActivity
 import android.support.v7.app.AppCompatDelegate
 import android.text.Html
@@ -18,28 +21,26 @@ import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.Toast
 import com.applovin.sdk.AppLovinSdk
-import com.mopub.mobileads.MoPubView
 import kotlinx.android.synthetic.main.activity_main.*
 import net.glxn.qrgen.android.QRCode
 import net.glxn.qrgen.core.scheme.Wifi
 
 private const val TAG = "MainActivity"
-private const val DEFAULT_QR_GENERATION_RESOLUTION = "300"
-private const val QR_CODE_DIALOG_BOTTOM_IMAGE_MARGIN = 0
 const val PERMISSION_CODE_GROUP_ADS = 0
 
+internal const val QR_CODE_DIALOG_BOTTOM_IMAGE_MARGIN = 0
+
 class MainActivity: AppCompatActivity() {
     // This variable holds an ArrayList of WifiEntry objects that each contain a saved wifi SSID and
     // password. It is updated whenever focus returns to the app (onResume).
     private lateinit var wifiEntries: ArrayList<WifiEntry>
     private val wifiEntrySSIDs = ArrayList<String>()
     private lateinit var loadWifiEntriesInBackgroundTask: LoadWifiEntriesInBackground
-    private lateinit var prefs: SharedPreferences
-
     private lateinit var qrDialog: AlertDialog
+
     override fun onCreate(savedInstanceState: Bundle?) {
         PreferenceManager.setDefaultValues(this, R.xml.preferences, false)
-        prefs = PreferenceManager.getDefaultSharedPreferences(this)
+        val prefs = PreferenceManager.getDefaultSharedPreferences(this)
 
         setThemeFromSharedPrefs(prefs)
         super.onCreate(savedInstanceState)
@@ -61,7 +62,7 @@ class MainActivity: AppCompatActivity() {
             qrCodeView.setImageBitmap(QRCode
                     .from(Wifi()
                             .withSsid(wifiEntrySSIDs[position])
-                            .withPsk(wifiEntries[position].getPassword(true))
+                            .withPsk(wifiEntries[position].password)
                             .withAuthentication(wifiEntries[position].type.asQRCodeAuth()))
                     .withColor((if (AppCompatDelegate.getDefaultNightMode() != AppCompatDelegate.MODE_NIGHT_YES) 0xFF000000 else 0xFFE0E0E0).toInt(), 0x00000000) //TODO Better colour handling - atm, the colours may be wrong if the theme is set to system or auto.
                     .withSize(prefs.getString("qr_code_resolution", DEFAULT_QR_GENERATION_RESOLUTION).toInt(), prefs.getString("qr_code_resolution", DEFAULT_QR_GENERATION_RESOLUTION).toInt())
@@ -78,14 +79,14 @@ class MainActivity: AppCompatActivity() {
             builder.setMessage(if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                 Html.fromHtml(
                         "<b>SSID</b>: ${wifiEntries[position].title}<br>" +
-                                (if (wifiEntries[position].getPassword(true) != "") "<b>Password</b>: ${if (wifiEntries[position].type != WifiEntry.Type.WEP) wifiEntries[position].getPassword(true) else wifiEntries[position].getPassword(true).removePrefix("\"").removeSuffix("\"")}<br>" else { "" }) +
+                                (if (wifiEntries[position].password != "") "<b>Password</b>: ${if (wifiEntries[position].type != WifiEntry.Type.WEP) wifiEntries[position].password else wifiEntries[position].password.removePrefix("\"").removeSuffix("\"")}<br>" else { "" }) +
                                 "<b>Type</b>: ${wifiEntries[position].type}",
                         Html.FROM_HTML_MODE_LEGACY)
             } else {
                 @Suppress("DEPRECATION")
                 Html.fromHtml(
                         "<b>SSID</b>: ${wifiEntries[position].title}<br>" +
-                                (if (wifiEntries[position].getPassword(true) != "") "<b>Password</b>: ${if (wifiEntries[position].type != WifiEntry.Type.WEP) wifiEntries[position].getPassword(true) else wifiEntries[position].getPassword(true).removePrefix("\"").removeSuffix("\"")}<br>" else { "" }) +
+                                (if (wifiEntries[position].password != "") "<b>Password</b>: ${if (wifiEntries[position].type != WifiEntry.Type.WEP) wifiEntries[position].password else wifiEntries[position].password.removePrefix("\"").removeSuffix("\"")}<br>" else { "" }) +
                                 "<b>Type</b>: ${wifiEntries[position].type}"
                 )
             }
@@ -126,14 +127,14 @@ class MainActivity: AppCompatActivity() {
     private lateinit var errorDialog: AlertDialog
     private lateinit var loadingDialog: AlertDialog
 
-    private inner class LoadWifiEntriesInBackground : AsyncTask<Unit, Unit, Unit>() {
+    private inner class LoadWifiEntriesInBackground: AsyncTask<Unit, Unit, Unit>() {
         override fun onPreExecute() {
             val loadingDialogBuilder = AlertDialog.Builder(this@MainActivity)
             loadingDialogBuilder.setCancelable(false)
             loadingDialogBuilder.setMessage(R.string.wifi_loading_message)
             loadingDialogBuilder.setView(ProgressBar(this@MainActivity))
             loadingDialog = loadingDialogBuilder.create()
-            loadingDialog.show()
+            runOnUiThread { loadingDialog.show() }
         }
 
         override fun doInBackground(vararg params: Unit?) {
@@ -194,7 +195,7 @@ class MainActivity: AppCompatActivity() {
     override fun onOptionsItemSelected(item: MenuItem?): Boolean {
         return when (item!!.itemId) {
             R.id.settingsItem -> {
-                startActivity(Intent(this, SettingsActivity::class.java))
+                startActivity(Intent(this, SettingsActivity::class.java).putExtra("xposed", false))
                 true
             }
             else -> super.onOptionsItemSelected(item)

app/src/main/java/tk/superl2/xwifi/PreferenceProvider.kt

@@ -0,0 +1,12 @@
+package tk.superl2.xwifi
+
+class PreferenceProvider: com.crossbowffs.remotepreferences.RemotePreferenceProvider("tk.superl2.xwifi.preferences", arrayOf("tk.superl2.xwifi_preferences")) {
+    override fun checkAccess(prefName: String, prefKey: String, write: Boolean): Boolean {
+        if (write) return false
+        return when (prefKey) {
+            "theme" -> false
+            "qr_code_resolution" -> true
+            else -> false
+        }
+    }
+}

app/src/main/java/tk/superl2/xwifi/SettingsActivity.kt

@@ -1,32 +1,28 @@
 package tk.superl2.xwifi
 
-import android.content.SharedPreferences
-import android.os.Build
 import android.os.Bundle
-import android.preference.Preference
-import android.preference.PreferenceActivity
 import android.preference.PreferenceFragment
+import android.preference.PreferenceManager
 import android.support.v7.app.AppCompatActivity
 import android.support.v7.app.AppCompatDelegate
 import android.widget.Toast
 
+internal const val DEFAULT_QR_GENERATION_RESOLUTION = "300"
 
-/**
- * A [PreferenceActivity] that presents a set of application settings. On
- * handset devices, settings are presented as a single list. On tablets,
- * settings are split by category, with category headers shown to the left of
- * the list of settings.
- *
- * See [Android Design: Settings](http://developer.android.com/design/patterns/settings.html)
- * for design guidelines and the [Settings API Guide](http://developer.android.com/guide/topics/ui/settings.html)
- * for more information on developing a Settings UI.
- */
 class SettingsActivity: AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
+        PreferenceManager.setDefaultValues(this, R.xml.preferences, false)
+
+        if (intent.extras.getBoolean("xposed")) {
+            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+        } else {
+            setThemeFromSharedPrefs(PreferenceManager.getDefaultSharedPreferences(this))
+        }
+
         super.onCreate(savedInstanceState)
 
         // Display the fragment as the main context
-        fragmentManager.beginTransaction().replace(android.R.id.content, SettingsFragment()).commit()
+        fragmentManager.beginTransaction().replace(android.R.id.content, if (intent.extras.getBoolean("xposed")) XposedSettingsFragment() else SettingsFragment()).commit()
     }
 }
 
@@ -44,4 +40,11 @@ class SettingsFragment: PreferenceFragment() {
             true
         }
     }
+}
+
+class XposedSettingsFragment: PreferenceFragment() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        addPreferencesFromResource(R.xml.xposed_preferences)
+    }
 }

app/src/main/java/tk/superl2/xwifi/WifiDataUtils.kt

@@ -10,6 +10,15 @@ import java.io.IOException
 import java.io.InputStreamReader
 import java.util.*
 
+const val ANDROID_SECURITY_NONE = 0
+const val ANDROID_SECURITY_WEP = 1
+const val ANDROID_SECURITY_PSK = 2
+const val ANDROID_SECURITY_EAP = 3
+const val ANDROID_PSK_UNKNOWN = 0
+const val ANDROID_PSK_WPA = 1
+const val ANDROID_PSK_WPA2 = 2
+const val ANDROID_PSK_WPA_WPA2 = 3
+
 data class WifiEntry(var title: String = "", var password: String = "", var type: Type = Type.NONE) {
     enum class Type {
         WPA {
@@ -28,16 +37,23 @@ data class WifiEntry(var title: String = "", var password: String = "", var type
         };
 
         abstract fun asQRCodeAuth(): Wifi.Authentication
-    }
 
-    fun getPassword(showAll: Boolean): String =
-            if (showAll) {
-                password
-            } else {
-                val fill = CharArray(password.length)
-                Arrays.fill(fill, '*')
-                String(fill)
+        companion object {
+            fun fromAndroidSecurityInt(security: Int, pskType: Int): WifiEntry.Type = when (security) {
+                ANDROID_SECURITY_WEP -> WEP
+                ANDROID_SECURITY_PSK -> {
+                    when (pskType) {
+                        ANDROID_PSK_WPA -> WPA
+                        ANDROID_PSK_WPA2 -> WPA
+                        ANDROID_PSK_WPA_WPA2 -> WPA
+                        else -> WPA
+                    }
+                }
+//                ANDROID_SECURITY_EAP -> EAP
+                else -> NONE
             }
+        }
+    }
 }
 
 private const val mOreoLocation = "/data/misc/wifi/WifiConfigStore.xml"