diff --git a/.idea/gradle.xml b/.idea/gradle.xml
deleted file mode 100644
index 746a8013b6b0721699966bcc7eb17c25fd0f68c1..0000000000000000000000000000000000000000
--- a/.idea/gradle.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <compositeConfiguration>
-          <compositeBuild compositeDefinitionSource="SCRIPT" />
-        </compositeConfiguration>
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-            <option value="$PROJECT_DIR$/nextcloud-android-lib" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000000000000000000000000000000000000..1f8383260e3f109391ac21306ab15d7c68f5529d
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="$USER_HOME$/Android/Sdk/extras/google/m2repository" />
+      <option name="name" value="$USER_HOME$/Android/Sdk/extras/google/m2repository" />
+      <option name="url" value="file:$USER_HOME$/Android/Sdk/extras/google/m2repository" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="$USER_HOME$/Android/Sdk/extras/android/m2repository" />
+      <option name="name" value="$USER_HOME$/Android/Sdk/extras/android/m2repository" />
+      <option name="url" value="file:$USER_HOME$/Android/Sdk/extras/android/m2repository" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="$USER_HOME$/Android/Sdk/extras/m2repository" />
+      <option name="name" value="$USER_HOME$/Android/Sdk/extras/m2repository" />
+      <option name="url" value="file:$USER_HOME$/Android/Sdk/extras/m2repository" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/src/main/java/foundation/e/drive/utils/AppConstants.java b/app/src/main/java/foundation/e/drive/utils/AppConstants.java
index 2b9f36a3bf0551b574861c5a4fa97814130746c0..1e180424b8cb05744a5e37cb6f1d72a6f92d46a6 100644
--- a/app/src/main/java/foundation/e/drive/utils/AppConstants.java
+++ b/app/src/main/java/foundation/e/drive/utils/AppConstants.java
@@ -6,10 +6,18 @@
  * http://www.gnu.org/licenses/gpl.html
  */
 
-
 package foundation.e.drive.utils;
 
 
+import android.os.Build;
+import foundation.e.drive.BuildConfig;
+
+import java.text.SimpleDateFormat;
+import java.util.Locale;
+
+import foundation.e.drive.BuildConfig;
+
+
 /**
  * @author Vincent Bourgmayer
  */
@@ -33,4 +41,18 @@ public abstract class AppConstants {
     public final static String notificationChannelID ="3310";
     public final static String notificationChannelName="eDrive channel";
 
+
+    public final static String USER_AGENT = "eos("+getBuildTime()+")-eDrive("+ BuildConfig.VERSION_NAME +")";
+
+    /**
+     * Get a readable OS's build date String
+     * @return Os'build date
+     */
+    private static String getBuildTime(){
+        long ts = Build.TIME;
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd", Locale.getDefault());
+        return sdf.format(ts);
+    }
+
+
 }
diff --git a/app/src/main/java/foundation/e/drive/utils/CommonUtils.java b/app/src/main/java/foundation/e/drive/utils/CommonUtils.java
index 1cf1d029c3f89cc6c1da6677210d801baebe9153..2d1c16e2075583f573ec17e3d5845d66938b3a93 100644
--- a/app/src/main/java/foundation/e/drive/utils/CommonUtils.java
+++ b/app/src/main/java/foundation/e/drive/utils/CommonUtils.java
@@ -26,6 +26,7 @@ import android.webkit.MimeTypeMap;
 import com.owncloud.android.lib.common.OwnCloudBasicCredentials;
 import com.owncloud.android.lib.common.OwnCloudClient;
 import com.owncloud.android.lib.common.OwnCloudClientFactory;
+import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
 import com.owncloud.android.lib.common.accounts.AccountUtils;
 import com.owncloud.android.lib.resources.files.FileUtils;
 
@@ -159,6 +160,11 @@ public abstract class CommonUtils {
             oc = OwnCloudClientFactory.createOwnCloudClient(serverUri, context, true);
             oc.setCredentials(new OwnCloudBasicCredentials(account.name, AccountManager.get(context).getPassword(account)));
 
+            Log.d(TAG, "user agent: "+AppConstants.USER_AGENT);
+            if(!AppConstants.USER_AGENT.equals(OwnCloudClientManagerFactory.getUserAgent())) {
+                OwnCloudClientManagerFactory.setUserAgent(AppConstants.USER_AGENT);
+            }
+
         } catch (Exception e) {
             Log.e(TAG, "Can\'t parse serverPath to Uri : " + e.toString());
             oc = null;
@@ -167,6 +173,7 @@ public abstract class CommonUtils {
 
     }
 
+
     /** methods relative to file **/
 
     /**
diff --git a/nextcloud-android-lib b/nextcloud-android-lib
index c6b717a01c2f84015357cd9dfa8b48155ff01045..880099c889253f30969b81c5e07750f070bfb65c 160000
--- a/nextcloud-android-lib
+++ b/nextcloud-android-lib
@@ -1 +1 @@
-Subproject commit c6b717a01c2f84015357cd9dfa8b48155ff01045
+Subproject commit 880099c889253f30969b81c5e07750f070bfb65c