diff --git a/.gitignore b/.gitignore
index d2ae2edc..ed7fbffa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules
 .idea
-.sass-cache
\ No newline at end of file
+.sass-cache
+npm-debug.log
diff --git a/lib/Db/SharingACL.php b/lib/Db/SharingACL.php
new file mode 100644
index 00000000..6e19675c
--- /dev/null
+++ b/lib/Db/SharingACL.php
@@ -0,0 +1,62 @@
+<?php
+/**
+ * User: Marcos Zuriaga
+ * Date: 24/09/16
+ * Time: 14:19
+ */
+
+namespace OCA\passman\lib\Db;
+
+use OCP\AppFramework\Db\Entity;
+
+/**
+ * @method void setId(integer $value)
+ * @method integer getId()
+ * @method void setItemId(integer $value)
+ * @method integer getItemId()
+ * @method void setItemGuid(string $value)
+ * @method string getItemGuid()
+ * @method void setUserId(string $value)
+ * @method string getUserid()
+ * @method void setGroupId(string $value)
+ * @method string getGroupId()
+ * @method void setCreated(integer $value)
+ * @method integer getCreated()
+ * @method void setExpire(integer $value)
+ * @method integer getExpire()
+ * @method void setPermissions(integer $value)
+ * @method integer getPermissions()
+ */
+
+class SharingACL extends Entity implements \JsonSerializable
+{
+
+    public function __construct() {
+        // add types in constructor
+        $this->addType('itemId', 'integer');
+        $this->addType('created', 'integer');
+        $this->addType('expire', 'integer');
+        $this->addType('permissions', 'integer');
+    }
+
+    /**
+     * Specify data which should be serialized to JSON
+     * @link http://php.net/manual/en/jsonserializable.jsonserialize.php
+     * @return mixed data which can be serialized by <b>json_encode</b>,
+     * which is a value of any type other than a resource.
+     * @since 5.4.0
+     */
+    function jsonSerialize()
+    {
+        return [
+            'acl_id' => $this->getId(),
+            'item_id' => $this->getItemId(),
+            'item_guid' => $this->getItemGuid(),
+            'user_id' => $this->getUserid(),
+            'group_id' => $this->getGroupId(),
+            'created' => $this->getCreated(),
+            'expire' => $this->getExpire(),
+            'permissions' => $this->getPermissions(),
+        ];
+    }
+}
\ No newline at end of file
diff --git a/lib/Db/SharingACLMapper.php b/lib/Db/SharingACLMapper.php
new file mode 100644
index 00000000..db48937e
--- /dev/null
+++ b/lib/Db/SharingACLMapper.php
@@ -0,0 +1,37 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: wolfi
+ * Date: 24/09/16
+ * Time: 14:20
+ */
+
+namespace OCA\passman\lib\Db;
+
+
+use OCP\AppFramework\Db\Mapper;
+use OCP\IGroup;
+use OCP\IUser;
+use OCA\Passman\Utility\Utils;
+
+class SharingACLMapper extends Mapper
+{
+    const TABLE_NAME = '`*PREFIX*passman_sharing_acl`';
+
+    public function __construct(IDBConnection $db, Utils $utils) {
+        parent::__construct($db, 'passman_vaults');
+        $this->utils = $utils;
+    }
+
+    /**
+     * Gets all the credential data for the given user
+     * @param $userId
+     * @param $item_guid
+     * @return SharingACL[]
+     */
+    public function getCredentialPermissions(IUser $userId, $item_guid){
+        $sql = "SELECT * FROM {{self::TABLE_NAME}} WHERE user_id = ? AND item_guid = ?";
+
+        return $this->findEntities($sql, [$userId, $item_guid]);
+    }
+}
\ No newline at end of file