- Added possibility to export and import accounts.

app/src/main/kotlin/com/tutpro/baresip/AccountsActivity.kt

@@ -3,9 +3,14 @@ package com.tutpro.baresip
 import android.app.Activity
 import android.content.Intent
 import android.os.Bundle
+import android.os.Environment
 import android.support.v7.app.AppCompatActivity
+import android.view.Menu
 import android.view.MenuItem
 import android.widget.*
+import android.app.AlertDialog
+import android.view.ViewGroup
+import android.view.LayoutInflater
 
 import java.io.File
 import java.util.ArrayList
@@ -13,8 +18,8 @@ import java.util.ArrayList
 class AccountsActivity : AppCompatActivity() {
 
     internal lateinit var alAdapter: AccountListAdapter
-
     internal var aor = ""
+    internal var password = ""
 
     public override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -73,8 +78,25 @@ class AccountsActivity : AppCompatActivity() {
         }
     }
 
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.accounts_menu, menu)
+        return true
+    }
+
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
+            R.id.export_accounts -> {
+                if (Utils.requestPermission(this,
+                                android.Manifest.permission.WRITE_EXTERNAL_STORAGE))
+                    askPassword("Encrypt Password")
+            }
+            R.id.import_accounts -> {
+                if (Utils.requestPermission(this,
+                                android.Manifest.permission.READ_EXTERNAL_STORAGE)) {
+                    askPassword("Decrypt Password")
+
+                }
+            }
             android.R.id.home -> {
                 Log.d("Baresip", "Back array was pressed at Accounts")
                 val i = Intent()
@@ -85,6 +107,45 @@ class AccountsActivity : AppCompatActivity() {
         return true
     }
 
+    private fun askPassword(title: String) {
+        val dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+        val builder = AlertDialog.Builder(this)
+        builder.setTitle(title)
+        val viewInflated = LayoutInflater.from(this)
+                .inflate(R.layout.password_dialog, findViewById(android.R.id.content) as ViewGroup,
+                        false)
+        val input = viewInflated.findViewById(R.id.password) as EditText
+        builder.setView(viewInflated)
+        builder.setPositiveButton(android.R.string.ok) { dialog, _ ->
+            dialog.dismiss()
+            password = input.text.toString()
+            if (password != "") {
+                if (title == "Encrypt Password") {
+                    if (exportAccounts(dir, password))
+                        Utils.alertView(this, "Info",
+                                "Exported accounts to Download folder as 'accounts.bs'")
+                    else
+                        Utils.alertView(this, "Error",
+                                "Failed to export accounts to Download folder.")
+                } else {
+                    if (importAccounts(dir, password))
+                        Utils.alertView(this, "Info",
+                                "Imported accounts from Download folder " +
+                                        "'accounts.bs'. You need to restart baresip.")
+                    else
+                        Utils.alertView(this, "Error",
+                                "Failed to import accounts from Download folder. " +
+                                        "Either file 'accounts.bs' doesn't exist or " +
+                                        "you gave wrong Decrypt Password.")
+                }
+            }
+        }
+        builder.setNegativeButton(android.R.string.cancel) { dialog, _ ->
+            dialog.cancel()
+        }
+        builder.show()
+    }
+
     companion object {
 
         internal var filesPath = ""
@@ -104,6 +165,22 @@ class AccountsActivity : AppCompatActivity() {
             Utils.putFileContents(File(filesPath + "/accounts"), accounts)
             // Log.d("Baresip", "Saved accounts '${accounts}' to '${filesPath}/accounts'")
         }
+
+        fun exportAccounts(path: File, password: String): Boolean {
+            var accounts = ""
+            for (a in Account.accounts())
+                accounts = accounts + a.print() + "\n"
+            return Utils.putFileContents(File(path, "accounts.bs"),
+                    Utils.encrypt(accounts, password))
+        }
+
+        fun importAccounts(path: File, password: String): Boolean {
+            val content = Utils.getFileContents(File(path, "accounts.bs"))
+            if (content == "Failed") return false
+            val accounts = Utils.decrypt(content, password)
+            if (accounts == "") return false
+            return Utils.putFileContents(File(filesPath + "/accounts"), accounts)
+        }
     }
 
 }