android: Show an error if a profile without a password is initiated

This could happen if an incomplete profile is used with Always-on VPN.

src/frontends/android/app/src/main/java/org/strongswan/android/logic/CharonVpnService.java

@@ -274,6 +274,14 @@ public class CharonVpnService extends VpnService implements Runnable, VpnStateSe
 						if (initializeCharon(builder, mLogFile, mAppDir, mCurrentProfile.getVpnType().has(VpnTypeFeature.BYOD)))
 						{
 							Log.i(TAG, "charon started");
+
+							if (mCurrentProfile.getVpnType().has(VpnTypeFeature.USER_PASS) &&
+								mCurrentProfile.getPassword() == null)
+							{	/* this can happen if Always-on VPN is enabled with an incomplete profile */
+								setError(ErrorState.PASSWORD_MISSING);
+								continue;
+							}
+
 							SettingsWriter writer = new SettingsWriter();
 							writer.setValue("global.language", Locale.getDefault().getLanguage());
 							writer.setValue("global.mtu", mCurrentProfile.getMTU());

src/frontends/android/app/src/main/java/org/strongswan/android/logic/VpnStateService.java

@@ -61,6 +61,7 @@ public class VpnStateService extends Service
 		LOOKUP_FAILED,
 		UNREACHABLE,
 		GENERIC_ERROR,
+		PASSWORD_MISSING,
 	}
 
 	/**
@@ -191,6 +192,8 @@ public class VpnStateService extends Service
 				return R.string.error_lookup_failed;
 			case UNREACHABLE:
 				return R.string.error_unreachable;
+			case PASSWORD_MISSING:
+				return R.string.error_password_missing;
 			default:
 				return R.string.error_generic;
 		}

src/frontends/android/app/src/main/res/values-de/strings.xml

@@ -187,6 +187,7 @@
     <string name="error_auth_failed">Benutzerauthentifizierung ist fehlgeschlagen</string>
     <string name="error_assessment_failed">Sicherheitsassessment ist fehlgeschlagen</string>
     <string name="error_generic">Unbekannter Fehler während des Verbindens</string>
+    <string name="error_password_missing">Passwort nicht verfügbar</string>
     <string name="vpn_connected">VPN verbunden</string>
     <string name="vpn_profile_connected">Dieses VPN Profil ist momentan verbunden!</string>
     <string name="reconnect">Neu verbinden</string>

src/frontends/android/app/src/main/res/values-pl/strings.xml

@@ -187,6 +187,7 @@
     <string name="error_auth_failed">Błąd przy autoryzacji użytkownika</string>
     <string name="error_assessment_failed">Security assessment failed</string>
     <string name="error_generic">Nieznany błąd w czasie połączenia</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">Połączenie z VPN</string>
     <string name="vpn_profile_connected">Ten profil VPN jest obecnie połaczony!</string>
     <string name="reconnect">Połączyć ponownie</string>

src/frontends/android/app/src/main/res/values-ru/strings.xml

@@ -184,6 +184,7 @@
     <string name="error_auth_failed">Ошибка авторизации пользователя</string>
     <string name="error_assessment_failed">Security assessment failed</string>
     <string name="error_generic">Неизвестная ошибка</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">Соединение с VPN установлено</string>
     <string name="vpn_profile_connected">Подключение к этому профилю VPN уже существует!</string>
     <string name="reconnect">Переподключить</string>

src/frontends/android/app/src/main/res/values-ua/strings.xml

@@ -185,6 +185,7 @@
     <string name="error_auth_failed">Помилка аутентифікації користувача</string>
     <string name="error_assessment_failed">Security assessment failed</string>
     <string name="error_generic">Невідома помилка під час підключення</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">VPN підключено</string>
     <string name="vpn_profile_connected">Цей VPN профіль зараз підключений!</string>
     <string name="reconnect">Перепідключитися</string>

src/frontends/android/app/src/main/res/values-zh-rCN/strings.xml

@@ -184,6 +184,7 @@
     <string name="error_auth_failed">用户鉴权失败</string>
     <string name="error_assessment_failed">可靠性评估失败</string>
     <string name="error_generic">连接中遭遇未知失败</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">VPN已连接</string>
     <string name="vpn_profile_connected">此VPN配置目前已连接。</string>
     <string name="reconnect">重连</string>

src/frontends/android/app/src/main/res/values-zh-rTW/strings.xml

@@ -184,6 +184,7 @@
     <string name="error_auth_failed">用戶授權失敗</string>
     <string name="error_assessment_failed">穩定性評估失敗</string>
     <string name="error_generic">連線中遇到不明錯誤</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">VPN已連線</string>
     <string name="vpn_profile_connected">這個VPN設定檔目前已經連線。</string>
     <string name="reconnect">重新連線</string>

src/frontends/android/app/src/main/res/values/strings.xml

@@ -187,6 +187,7 @@
     <string name="error_auth_failed">User authentication failed</string>
     <string name="error_assessment_failed">Security assessment failed</string>
     <string name="error_generic">Unspecified failure while connecting</string>
+    <string name="error_password_missing">Password unavailable</string>
     <string name="vpn_connected">VPN connected</string>
     <string name="vpn_profile_connected">This VPN profile is currently connected!</string>
     <string name="reconnect">Reconnect</string>