diff --git a/plugins/kolab_files/kolab_files.js b/plugins/kolab_files/kolab_files.js
index 04453647..e523f5a2 100644
--- a/plugins/kolab_files/kolab_files.js
+++ b/plugins/kolab_files/kolab_files.js
@@ -190,6 +190,9 @@ function kolab_files_init()
       // get ongoing sessions
       file_api.request('folder_info', {folder: file_api.file_path(rcmail.env.file), sessions: 1}, 'folder_info_response');
     }
+    else if (rcmail.env.action == 'share') {
+      // do nothing
+    }
     else {
       file_api.env.init_folder = rcmail.env.folder;
       file_api.env.init_collection = rcmail.env.collection;
@@ -518,6 +521,18 @@ function kolab_files_folder_edit_dialog()
   file_api.folder_select_element(select, {selected: path, empty: true});
 };
 
+// folder sharing dialog
+function kolab_files_folder_share_dialog()
+{
+  var dialog = $('<iframe>').attr('src', rcmail.url('share', {folder: file_api.env.folder, _framed: 1}));
+
+  rcmail.simple_dialog(dialog, rcmail.gettext('kolab_files.foldershare'), null, {
+    cancel_button: 'close',
+    width: 600,
+    height: 500
+  });
+};
+
 // folder mounting dialog
 function kolab_files_folder_mount_dialog()
 {
@@ -1945,6 +1960,12 @@ rcube_webmail.prototype.folder_rename = function(prop, elem, event)
   kolab_files_folder_edit_dialog();
 };
 
+rcube_webmail.prototype.folder_share = function(prop, elem, event)
+{
+  this.hide_menu('folderoptions', event);
+  kolab_files_folder_share_dialog();
+};
+
 rcube_webmail.prototype.folder_mount = function(prop, elem, event)
 {
   this.hide_menu('folderoptions', event);
@@ -2022,6 +2043,21 @@ function kolab_files_ui()
     return true;
   };
 
+  // Check if specified folder (hierarchy) supports sharing
+  this.is_shareable = function(folder)
+  {
+    if (!folder)
+      folder = this.env.folder;
+
+    if (!folder)
+      return false;
+
+    var root = folder.split(this.env.directory_separator)[0],
+      caps = this.env.caps.MOUNTPOINTS && this.env.caps.MOUNTPOINTS[root] ? this.env.caps.MOUNTPOINTS[root] : this.env.caps;
+
+    return !!caps.ACL;
+  };
+
   // folders list request
   this.folder_list = function(params)
   {
@@ -2199,6 +2235,7 @@ function kolab_files_ui()
     rcmail.enable_command('files-list', true);
     rcmail.enable_command('files-folder-delete', 'folder-rename', !is_collection);
     rcmail.enable_command('files-upload', !is_collection && this.is_writable());
+    rcmail.enable_command('folder-share', !is_collection && this.is_shareable());
     rcmail.command('files-list', is_collection ? {collection: collection} : {folder: folder});
 
     this.quota();
diff --git a/plugins/kolab_files/kolab_files.php b/plugins/kolab_files/kolab_files.php
index 15b285e6..ccbcb4e8 100644
--- a/plugins/kolab_files/kolab_files.php
+++ b/plugins/kolab_files/kolab_files.php
@@ -50,6 +50,7 @@ class kolab_files extends rcube_plugin
         $this->register_action('prefs', array($this, 'actions'));
         $this->register_action('open',  array($this, 'actions'));
         $this->register_action('edit',  array($this, 'actions'));
+        $this->register_action('share',  array($this, 'actions'));
         $this->register_action('autocomplete', array($this, 'autocomplete'));
 
         // we use libkolab::http_request() from libkolab with its configuration
diff --git a/plugins/kolab_files/lib/kolab_files_engine.php b/plugins/kolab_files/lib/kolab_files_engine.php
index 97c62885..32f1e452 100644
--- a/plugins/kolab_files/lib/kolab_files_engine.php
+++ b/plugins/kolab_files/lib/kolab_files_engine.php
@@ -106,7 +106,7 @@ class kolab_files_engine
             $this->get_external_storage_drivers();
 
             // these labels may be needed even if fetching ext sources failed
-            $this->plugin->add_label('folderauthtitle', 'authenticating');
+            $this->plugin->add_label('folderauthtitle', 'authenticating', 'foldershare');
         }
 
         if ($list_widget) {
@@ -358,6 +358,19 @@ class kolab_files_engine
         );
     }
 
+    /**
+     * Template object for sharing form
+     */
+    public function folder_share_form($attrib)
+    {
+        $folder = rcube_utils::get_input_value('folder', rcube_utils::INPUT_POST, true);
+
+        $form = $this->get_share_form($folder);
+
+print_r($form);
+        $this->rc->output->set_env('folder', $folder);
+    }
+
     /**
      * Template object for file edit dialog/warnings
      */
@@ -1073,6 +1086,16 @@ class kolab_files_engine
         $this->file_opener(intval($_GET['_viewer']));
     }
 
+    /**
+     * Handler for folder sharing action
+     */
+    protected function action_share()
+    {
+        $this->rc->output->add_handler('share-form', array($this, 'folder_share_form'));
+
+        $this->rc->output->send('kolab_files.share');
+    }
+
     /**
      * Handler for "save all attachments into cloud" action
      */
@@ -1555,6 +1578,36 @@ class kolab_files_engine
         $this->rc->output->set_env('external_sources', $sources);
     }
 
+    /**
+     * Get list of available external storage drivers
+     */
+    protected function get_share_form($folder)
+    {
+        // first get configured sources from Chwala
+        $token   = $this->get_api_token();
+        $request = $this->get_request(array('method' => 'sharing', 'folder' => $folder), $token);
+
+        // send request to the API
+        try {
+            $response = $request->send();
+            $status   = $response->getStatus();
+            $body     = @json_decode($response->getBody(), true);
+
+            if ($status == 200 && $body['status'] == 'OK') {
+                $form = $body['result'];
+            }
+            else {
+                throw new Exception($body['reason'] ?: "Failed to get sharing form information. Status: $status");
+            }
+        }
+        catch (Exception $e) {
+            rcube::raise_error($e, true, false);
+            return;
+        }
+
+        return $form;
+    }
+
     /**
      * Registers translation labels for folder lists in UI
      */
diff --git a/plugins/kolab_files/localization/en_US.inc b/plugins/kolab_files/localization/en_US.inc
index 8a8915b7..821fcd39 100644
--- a/plugins/kolab_files/localization/en_US.inc
+++ b/plugins/kolab_files/localization/en_US.inc
@@ -21,12 +21,15 @@ $labels['selectfiles'] = 'Select file(s) to attach...';
 $labels['attachsel'] = 'Attach selected';
 $labels['foldercreate'] = 'Create folder';
 $labels['addfolder'] = 'Add folder';
+$labels['foldershare'] = 'Share folder';
 $labels['folderedit'] = 'Edit folder';
+$labels['folderrename'] = 'Rename folder';
 $labels['foldermount'] = 'Add storage';
 $labels['folderdelete'] = 'Delete folder';
 $labels['folderoptions'] = 'Folder options';
 $labels['findfolders'] = 'Find folders';
 $labels['findfiles'] = 'Find files';
+$labels['share'] = 'Share';
 
 $labels['folderinside'] = 'Insert inside';
 $labels['foldername'] = 'Folder name';
diff --git a/plugins/kolab_files/skins/elastic/templates/files.html b/plugins/kolab_files/skins/elastic/templates/files.html
index 111d52a9..1af6c7dd 100644
--- a/plugins/kolab_files/skins/elastic/templates/files.html
+++ b/plugins/kolab_files/skins/elastic/templates/files.html
@@ -132,12 +132,13 @@
 	<h3 id="aria-label-folderoptions" class="voice"><roundcube:label name="kolab_files.folderoptions" /></h3>
 	<ul class="toolbarmenu listing" role="menu" aria-labelledby="aria-label-folderoptions">
 		<roundcube:button type="link-menuitem" command="folder-create" label="kolab_files.addfolder" class="create disabled" classAct="create active" />
-		<roundcube:button type="link-menuitem" command="folder-rename" label="rename" class="rename" classAct="rename active" />
-		<roundcube:button type="link-menuitem" command="files-folder-delete" label="delete" class="delete" classAct="delete active" />
+		<roundcube:button type="link-menuitem" command="folder-rename" label="kolab_files.folderrename" class="rename" classAct="rename active" />
+		<roundcube:button type="link-menuitem" command="folder-share" label="kolab_files.foldershare" class="share" classAct="share active" />
+		<roundcube:button type="link-menuitem" command="files-folder-delete" label="kolab_files.folderdelete" class="delete" classAct="delete active" />
+		<roundcube:button type="link-menuitem" command="folders" task="settings" label="managefolders" class="folders" classAct="folders active" />
 		<roundcube:if condition="!empty(env:external_sources)" />
 			<roundcube:button type="link-menuitem" command="folder-mount" label="kolab_files.foldermount" class="mount storage" classAct="mount storage active" />
 		<roundcube:endif />
-		<roundcube:button type="link-menuitem" command="folders" task="settings" label="managefolders" class="folders" classAct="folders active" />
 	</ul>
 </div>
 
diff --git a/plugins/kolab_files/skins/elastic/templates/share.html b/plugins/kolab_files/skins/elastic/templates/share.html
new file mode 100644
index 00000000..36fba1f4
--- /dev/null
+++ b/plugins/kolab_files/skins/elastic/templates/share.html
@@ -0,0 +1,9 @@
+<roundcube:include file="includes/layout.html" />
+
+<h1 class="voice"><roundcube:label name="kolab_files.foldershare" /></h1>
+
+<div class="formcontent">
+	<roundcube:object name="share-form" id="shareform" class="tabbed propform" />
+</div>
+
+<roundcube:include file="includes/footer.html" />
diff --git a/plugins/kolab_files/skins/larry/templates/files.html b/plugins/kolab_files/skins/larry/templates/files.html
index 05772770..2a45b0db 100644
--- a/plugins/kolab_files/skins/larry/templates/files.html
+++ b/plugins/kolab_files/skins/larry/templates/files.html
@@ -76,6 +76,7 @@
     <h3 id="aria-label-folderoptions" class="voice"><roundcube:label name="kolab_files.folderoptions" /></h3>
     <ul id="folderoptionsmenu" class="toolbarmenu" role="menu" aria-labelledby="aria-label-folderoptions">
         <li role="menuitem"><roundcube:button type="link" command="folder-rename" label="rename" classAct="active" /></li>
+        <li role="menuitem"><roundcube:button type="link" command="folder-share" label="kolab_files.share" classAct="active" /></li>
         <li role="menuitem"><roundcube:button type="link" command="files-folder-delete" label="delete" classAct="active" /></li>
         <roundcube:if condition="!empty(env:external_sources)" />
         <li role="menuitem"><roundcube:button type="link" command="folder-mount" label="kolab_files.foldermount" classAct="active" /></li>
diff --git a/plugins/kolab_files/skins/larry/templates/share.html b/plugins/kolab_files/skins/larry/templates/share.html
new file mode 100644
index 00000000..ee3067ec
--- /dev/null
+++ b/plugins/kolab_files/skins/larry/templates/share.html
@@ -0,0 +1,18 @@
+<roundcube:object name="doctype" value="html5" />
+<html>
+<head>
+<title><roundcube:object name="pagetitle" /></title>
+<roundcube:include file="/includes/links.html" />
+</head>
+<body class="iframe fullheight">
+
+<h1 class="voice"><roundcube:label name="kolab_files.foldershare" /></h1>
+
+<div id="folder-share" class="boxcontent">
+	<roundcube:object name="share-form" id="folder-shareform" class="tabbed" />
+</div>
+
+<roundcube:include file="/includes/footer.html" />
+
+</body>
+</html>
diff --git a/plugins/libkolab/skins/elastic/include/kolab_files.less b/plugins/libkolab/skins/elastic/include/kolab_files.less
index fa949740..ff2a4cac 100644
--- a/plugins/libkolab/skins/elastic/include/kolab_files.less
+++ b/plugins/libkolab/skins/elastic/include/kolab_files.less
@@ -45,6 +45,10 @@ a.button.saveas:before {
     content: @fa-var-times;
 }
 
+.listing li a.share:before {
+    content: @fa-var-share-alt;
+}
+
 .ui-dialog .ui-dialog-buttonpane .ui-dialog-buttonset a.btn-link.options.add-folder {
     order: -1;