--- a/ckanext/ga_report/ga_auth.py
+++ b/ckanext/ga_report/ga_auth.py
@@ -1,1 +1,45 @@
+import httplib2
+from apiclient.discovery import build
+from oauth2client.client import flow_from_clientsecrets
+from oauth2client.file import Storage
+from oauth2client.tools import run
 
+from pylons import config
+
+
+def _prepare_credentials( token_filename, credentials_filename ):
+    storage = Storage( token_filename )
+    credentials = storage.get()
+
+    if credentials is None or credentials.invalid:
+        flow = flow_from_clientsecrets(credentials_filename,
+                scope='https://www.googleapis.com/auth/analytics.readonly',
+                message="Can't find the credentials file")
+        credentials = run(flow, storage)
+
+    return credentials
+
+def initialize_service( token_file, credentials_file ):
+    http = httplib2.Http()
+
+    credentials = _prepare_credentials(token_file, credentials_file)
+    http = credentials.authorize(http)  # authorize the http object
+
+    return build('analytics', 'v3', http=http)
+
+def get_profile_id(service):
+    # Get a list of all Google Analytics accounts for this user
+    accounts = service.management().accounts().list().execute()
+
+    if accounts.get('items'):
+        firstAccountId = accounts.get('items')[0].get('id')
+        webPropertyId = config.get('googleanalytics.id')
+        profiles = service.management().profiles().list(
+                    accountId=firstAccountId,
+                    webPropertyId=webPropertyId).execute()
+
+        if profiles.get('items'):
+            # return the first Profile ID
+            return profiles.get('items')[0].get('id')
+
+    return None