diff --git a/imports/seafapi.py b/imports/seafapi.py
index c8d9353..eafe320 100644
--- a/imports/seafapi.py
+++ b/imports/seafapi.py
@@ -111,11 +111,14 @@ class SeafileFile:
         self.size = size
 
     # curl -v  -X PUT -d "p=/foo.md" -H 'Authorization: Token f2210dacd9c6ccb8133606d94ff8e61d99b477fd' -H 'Accept: application/json; indent=4' https://cloud.seafile.com/api2/repos/afc3b694-7d4c-4b8a-86a4-89c9f3261b12/file/shared-link/
-    def share(self):
+    def share(self,expire_days=None):
+        data = {'p': self.path}
+        if expire_days and not expire_days == 0:
+            data['expire'] = expire_days
         resp = self.session.put("%s/repos/%s/file/shared-link/" % (self.library.client.api_endpoint(), self.library.id),
                                 headers={'Authorization': "Token %s" % self.library.client.token.token,
                                          'Accept': 'application/json; indent=4'},
-                                data={'p': self.path}
+                                data = data
                                 )
         return resp.headers.get("location")
 
diff --git a/imports/settings.py b/imports/settings.py
index 4d0f8b8..1b13d6f 100644
--- a/imports/settings.py
+++ b/imports/settings.py
@@ -11,6 +11,7 @@ class SeafScreencloudSettings:
         self.token = None  # SefileToken
         self.upload_scheme = "regular"
         self.url = None
+        self.link_expiry = None
 
     def _client(self):
         if self.token and self.url:
@@ -28,6 +29,7 @@ class SeafScreencloudSettings:
         self.client = self._client
 
         self.url = settings.value("seafile-url", None)
+        self.link_expiry = int(settings.value("link-expiry", None))
         lib = tuple(settings.value("library", "/").split("/"))
         (id, name) = lib
         if len(id) == 0 or self.client() == None:
@@ -64,6 +66,8 @@ class SeafScreencloudSettings:
         if self.library is not None:
             settings.setValue("library", "%s/%s" %
                               (self.library.id, self.library.name))
+        if self.link_expiry is not None:
+            settings.setValue("link-expiry", self.link_expiry)                    
         settings.setValue("library-path", self.library_path)
         if self.token != None:
             settings.setValue("auth-username", self.token.username)