Support for policy upload/download

Plus a small bugfix for groups

app/views/rest.py

@@ -4,11 +4,14 @@ from flask import Blueprint, request
 from flask import redirect, url_for
 from app import auth
 
-from flask import jsonify
+from flask import jsonify, make_response
 
-from hsapi_client import Node, User, Route, PreAuthKey
+from hsapi_client import Node, User, Route, PreAuthKey, Policy
 from hsapi_client.preauthkeys import (v1CreatePreAuthKeyRequest,
                                       v1ExpirePreAuthKeyRequest)
+from hsapi_client.policies import v1Policy
+
+from hsapi_client.config import HTTPException
 
 from app.lib import remote_ip
 
@@ -111,3 +114,21 @@ def expirePKA(userName: str, key: str):
 def backfillips():
     response = Node().backfillips()
     return jsonify(response.changes)
+
+
+@rest_blueprint.route('/policy/upload', methods=['POST'])
+@auth.authorize_admins('default')
+def policyUpload():
+    file = request.files['file']
+    try:
+        acl = ''.join(map(bytes.decode, file.readlines()))
+    except UnicodeDecodeError as e:
+        log.debug(e)
+        return jsonify(message=str(e)), 422
+
+    policy = Policy()
+    try:
+        policy.put(acl)
+    except HTTPException as e:
+        return jsonify(message=str(e.message)), 422
+    return jsonify(message="acl updated"), 200