--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/primsfilters.py	Fri Jan 31 12:21:51 2014 +0100
@@ -0,0 +1,42 @@
+import logging
+log = logging.getLogger( __name__ )
+
+
+def restrict_prims_metabolomics( context, tool ):
+    """
+    This tool filter will hide prims_metabolomics tools for non-metabolomics users. 
+    This can be enabled by adding the following to the
+     ``app:main`` section of ``universe_wsgi.ini``::
+
+        tool_filters = primsfilters:restrict_prims_metabolomics
+        
+    and by adding this file to the folder:
+    
+        <galaxy-dist>/lib/galaxy/tools/filters
+        
+    This is optional and can be used in case some control is desired on whom 
+    gets to see the prims_metabolomics tools. When not using this file and the 
+    settings mentioned above, all prims_metabolomics tools will be visible to 
+    all users.  
+    """
+    # for debugging: import pydevd;pydevd.settrace("L0136815.wurnet.nl")
+    user = context.trans.user
+    metabolomics_tools = [ "msclust2", "combine_output", "create_poly_model", "lookup_library", "NDIStext2tabular", "rankfilterGCMS_tabular", "filter_on_rank" ]
+    found_match = False
+    # iterate over the tool (partial)ids and look for a match (this is compatible with tool shed given ids):
+    for partial_id in metabolomics_tools:
+        if tool.id.find("/"+ partial_id + "/") >= 0:
+            found_match = True
+            break
+    # the second part of this if is compatible with the ids when NOT using tool shed:    
+    if found_match or tool.id in metabolomics_tools: 
+        # logging.warn( 'FILTER MATCHED: %s' %(tool.name))        
+    
+        for user_role in user.roles:
+            if user_role.role.name == "PRIMS_METABOLOMICS":
+                return True
+        # not found to have the role, return false:
+        return False
+    else:
+        # return true for any other tool
+        return True
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