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The following commit(s) were added to refs/heads/master by this push:
     new adda30b  Set longer CSRF token duration (one week) (#4741)
adda30b is described below

commit adda30bf6653084757f4f1a093dce6898c1bb35f
Author: Maxime Beauchemin <maximebeauche...@gmail.com>
AuthorDate: Wed Apr 4 15:55:32 2018 -0700

    Set longer CSRF token duration (one week) (#4741)
    
    Default is one hour (3600), also this entry makes the setting a bit more
    discoverable
    http://flask-wtf.readthedocs.io/en/stable/config.html?highlight=csrf
---
 docs/installation.rst | 20 ++++++++++++++++----
 superset/config.py    |  3 +++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/docs/installation.rst b/docs/installation.rst
index 725dd9c..3036255 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -242,17 +242,29 @@ of the parameters you can copy / paste in that 
configuration module: ::
     WTF_CSRF_ENABLED = True
     # Add endpoints that need to be exempt from CSRF protection
     WTF_CSRF_EXEMPT_LIST = []
+    # A CSRF token that expires in 1 year
+    WTF_CSRF_TIME_LIMIT = 60 * 60 * 24 * 365
 
     # Set this API key to enable Mapbox visualizations
     MAPBOX_API_KEY = ''
 
-This file also allows you to define configuration parameters used by
-Flask App Builder, the web framework used by Superset. Please consult
+All the parameters and default values defined in
+https://github.com/apache/incubator-superset/blob/master/superset/config.py
+can be altered in your local ``superset_config.py`` .
+Administrators will want to
+read through the file to understand what can be configured locally
+as well as the default values in place.
+
+Since ``superset_config.py`` acts as a Flask configuration module, it
+can be used to alter the settings Flask itself,
+as well as Flask extensions like ``flask-wtf``, ``flask-cache``,
+``flask-migrate``, and ``flask-appbuilder``. Flask App Builder, the web
+framework used by Superset offers many configuration settings. Please consult
 the `Flask App Builder Documentation
 <http://flask-appbuilder.readthedocs.org/en/latest/config.html>`_
-for more information on how to configure Superset.
+for more information on how to configure it.
 
-Please make sure to change:
+Make sure to change:
 
 * *SQLALCHEMY_DATABASE_URI*, by default it is stored at 
*~/.superset/superset.db*
 * *SECRET_KEY*, to a long random string
diff --git a/superset/config.py b/superset/config.py
index 34788b4..6075352 100644
--- a/superset/config.py
+++ b/superset/config.py
@@ -357,6 +357,9 @@ SILENCE_FAB = True
 # It will be appended at the bottom of sql_lab errors.
 TROUBLESHOOTING_LINK = ''
 
+# CSRF token timeout, set to None for a token that never expires
+WTF_CSRF_TIME_LIMIT = 60 * 60 * 24 * 7
+
 # This link should lead to a page with instructions on how to gain access to a
 # Datasource. It will be placed at the bottom of permissions errors.
 PERMISSION_INSTRUCTIONS_LINK = ''

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