Stub key pair screen

AndroidManifest.xml

@@ -441,6 +441,11 @@
               android:windowSoftInputMode="stateUnchanged"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".loki.KeyPairActivity"
+              android:launchMode="singleTask"
+              android:theme="@style/TextSecure.LightRegistrationTheme"
+              android:windowSoftInputMode="stateUnchanged"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <service android:enabled="true" android:name="org.thoughtcrime.securesms.service.WebRtcCallService"/>
     <service android:enabled="true" android:name=".service.ApplicationMigrationService"/>

res/layout/activity_key_pair.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/white"
+    android:fillViewport="true"
+    tools:context=".loki.KeyPairActivity">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="32dp"
+        android:layout_marginEnd="32dp"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/titleTextView"
+            style="@style/Signal.Text.Headline.Registration"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="40dp"
+            android:text="@string/activity_key_pair_title"
+            android:textAlignment="center" />
+
+        <TextView
+            android:id="@+id/subtitleTextView"
+            style="@style/Signal.Text.Body"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:text="@string/activity_key_pair_subtitle"
+            android:textStyle="bold"
+            android:textAlignment="center" />
+
+        <TextView
+            android:id="@+id/mnemonicTextView"
+            style="@style/Signal.Text.Body"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:alpha="0.8"
+            android:textStyle="italic"
+            android:textAlignment="center" />
+
+        <com.dd.CircularProgressButton
+            android:id="@+id/nextButton"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:layout_marginTop="20dp"
+            android:layout_gravity="center_horizontal"
+            android:background="@color/signal_primary"
+            android:textColor="@color/white"
+            app:cpb_colorIndicator="@color/white"
+            app:cpb_colorProgress="@color/textsecure_primary"
+            app:cpb_cornerRadius="4dp"
+            app:cpb_selectorIdle="@drawable/progress_button_state"
+            app:cpb_textIdle="@string/activity_key_pair_button_title" />
+
+    </LinearLayout>
+
+</ScrollView>

res/values/strings.xml

@@ -1518,8 +1518,14 @@
     <!-- EOF -->
 
     <!-- Loki -->
+
+    <!-- Account details activity -->
     <string name="activity_account_details_title">Create Your Loki Messenger Account</string>
     <string name="activity_account_details_subtitle">Enter a name to be shown to your contacts</string>
     <string name="activity_account_details_button_title">Next</string>
+    <!-- Key pair activity -->
+    <string name="activity_key_pair_title">Create Your Loki Messenger Account</string>
+    <string name="activity_key_pair_subtitle">Please save the seed below in a safe location. It can be used to restore your account if you lose access, or to migrate to a new device.</string>
+    <string name="activity_key_pair_button_title">Register</string>
 
 </resources>

src/org/thoughtcrime/securesms/jobs/RefreshPreKeysJob.java

@@ -12,14 +12,11 @@ import org.thoughtcrime.securesms.jobmanager.impl.NetworkConstraint;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.whispersystems.libsignal.IdentityKeyPair;
-import org.whispersystems.libsignal.state.PreKeyRecord;
-import org.whispersystems.libsignal.state.SignedPreKeyRecord;
 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
 import org.whispersystems.signalservice.api.push.exceptions.NonSuccessfulResponseCodeException;
 import org.whispersystems.signalservice.api.push.exceptions.PushNetworkException;
 
 import java.io.IOException;
-import java.util.List;
 
 import javax.inject.Inject;
 
@@ -60,7 +57,7 @@ public class RefreshPreKeysJob extends BaseJob implements InjectableType {
     if (!TextSecurePreferences.isPushRegistered(context)) return;
 
     if (TextSecurePreferences.isSignedPreKeyRegistered(context)) {
-      Log.i(TAG, "Already have a signed pre key set");
+      Log.i(TAG, "Already have a signed pre key registered.");
       return;
     }
 
@@ -69,12 +66,10 @@ public class RefreshPreKeysJob extends BaseJob implements InjectableType {
     PreKeyUtil.generateSignedPreKey(context, identityKey, true);
     TextSecurePreferences.setSignedPreKeyRegistered(context, true);
 
-    ApplicationContext.getInstance(context)
-            .getJobManager()
-            .add(new CleanPreKeysJob());
+    ApplicationContext.getInstance(context).getJobManager().add(new CleanPreKeysJob());
   }
 
-  /* Loki - Original Code
+  /* Loki - Original code
   @Override
   public void onRun() throws IOException {
     if (!TextSecurePreferences.isPushRegistered(context)) return;

src/org/thoughtcrime/securesms/loki/AccountDetailsActivity.kt

@@ -1,13 +1,26 @@
 package org.thoughtcrime.securesms.loki
 
+import android.content.Intent
 import android.os.Bundle
+import kotlinx.android.synthetic.main.activity_account_details.*
 import org.thoughtcrime.securesms.BaseActionBarActivity
 import org.thoughtcrime.securesms.R
+import org.whispersystems.signalservice.api.crypto.ProfileCipher
 
 class AccountDetailsActivity : BaseActionBarActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_account_details)
+        nextButton.setOnClickListener { continueIfPossible() }
+    }
+
+    private fun continueIfPossible() {
+        val uncheckedName = nameEditText.text.toString()
+        val name = if (uncheckedName.isNotEmpty()) { uncheckedName.trim() } else { null }
+        if (name != null && name.toByteArray().size > ProfileCipher.NAME_PADDED_LENGTH) {
+            return nameEditText.input.setError("Too Long")
+        }
+        startActivity(Intent(this, KeyPairActivity::class.java))
     }
 }

src/org/thoughtcrime/securesms/loki/KeyPairActivity.kt

@@ -0,0 +1,67 @@
+package org.thoughtcrime.securesms.loki
+
+import android.os.Bundle
+import kotlinx.android.synthetic.main.activity_key_pair.*
+import org.thoughtcrime.securesms.BaseActionBarActivity
+import org.thoughtcrime.securesms.R
+import org.thoughtcrime.securesms.crypto.IdentityKeyUtil
+import org.whispersystems.libsignal.IdentityKeyPair
+import org.whispersystems.signalservice.loki.crypto.MnemonicCodec
+import java.io.File
+import java.io.FileOutputStream
+
+class KeyPairActivity : BaseActionBarActivity() {
+    private lateinit var languageFileDirectory: File
+    private var keyPair: IdentityKeyPair? = null
+        set(newValue) { field = newValue; updateMnemonic() }
+    private var mnemonic: String? = null
+        set(newValue) { field = newValue; updateMnemonicTextView() }
+
+    // region Lifecycle
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_key_pair)
+        setUpLanguageFileDirectory()
+        updateKeyPair()
+    }
+    // endregion
+
+    // region General
+    private fun setUpLanguageFileDirectory() {
+        val languages = listOf( "english", "japanese", "portuguese", "spanish" )
+        val directory = File(applicationInfo.dataDir)
+        for (language in languages) {
+            val fileName = "$language.txt"
+            if (directory.list().contains(fileName)) { continue }
+            val inputStream = assets.open("mnemonic/$fileName")
+            val file = File(directory, fileName)
+            val outputStream = FileOutputStream(file)
+            val buffer = ByteArray(1024)
+            while (true) {
+                val count = inputStream.read(buffer)
+                if (count < 0) { break }
+                outputStream.write(buffer, 0, count)
+            }
+            inputStream.close()
+            outputStream.close()
+        }
+        languageFileDirectory = directory
+    }
+    // endregion
+
+    // region Updating
+    private fun updateKeyPair() {
+        IdentityKeyUtil.generateIdentityKeys(this)
+        keyPair = IdentityKeyUtil.getIdentityKeyPair(this)
+    }
+
+    private fun updateMnemonic() {
+        val hexEncodedPrivateKey = ("67982927" + "aaaabbbb" + "8926bfgd" + "0bfbba33" + "67982927" + "aaaabbbb" + "8926bfgd" + "0bfbba33").toUpperCase() // Hex.toString(keyPair!!.privateKey.serialize())
+        mnemonic = MnemonicCodec(languageFileDirectory).encode(hexEncodedPrivateKey)
+    }
+
+    private fun updateMnemonicTextView() {
+        mnemonicTextView.text = mnemonic!!
+    }
+    // endregion
+}