Refactor get_api_token.py to be K8s and docker friendly.

Author: poikilotherm

get_api_token.py

@@ -1,14 +1,33 @@
 from pyDataverse.api import Api
 import json
 import dvconfig
+from pathlib import Path
+import os
+import sys
+
 base_url = dvconfig.base_url
-api_token = dvconfig.api_token
-api = Api(base_url, api_token)
-username = 'dataverseAdmin'
-password = 'admin1'
+api = Api(base_url, '')
+
+username = os.getenv('DATAVERSE_USER', 'dataverseAdmin')
+password = os.getenv('DATAVERSE_PASSWORD', 'admin1')
+# On K8s or with Docker we should get secrets from files, not env vars
+if Path(password).is_file():
+    f = open(Path(password), 'r')
+    password = f.read().strip()
+    f.close()
+
 endpoint = '/builtin-users/' + username + '/api-token'
 params = {}
 params['password'] = password
-resp = api.get_request(endpoint, params=params, auth=True)
-api_token = resp.json()['data']['message']
-print(api_token)
+
+resp = api.get_request(endpoint, params=params, auth=False)
+if resp.json()['status'] == "OK":
+    api_token = resp.json()['data']['message']
+    print(api_token)
+    sys.exit(0)
+else:
+    print("ERROR receiving API token:", file=sys.stderr)
+    print(resp.json(), file=sys.stderr)
+    print("Did you enable :AllowApiTokenLookupViaApi configuration option?", file=sys.stderr)
+    print("See http://guides.dataverse.org/en/latest/installation/config.html#allowapitokenlookupviaapi", file=sys.stderr)
+    sys.exit(1)