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1# Copyright (C) 2010 Google Inc. All rights reserved.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10# copyright notice, this list of conditions and the following disclaimer
11# in the documentation and/or other materials provided with the
12# distribution.
13#     * Neither the name of Google Inc. nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29from google.appengine.ext import webapp, db
30from google.appengine.ext.webapp import template
31
32from handlers.updatebase import UpdateBase
33from model.attachment import Attachment
34from model.queues import Queue
35
36
37class SubmitToEWS(UpdateBase):
38    def get(self):
39        self.response.out.write(template.render("templates/submittoews.html", None))
40
41    def _should_add_to_ews_queue(self, queue, attachment):
42        # This assert() is here to make sure we're not submitting to the commit-queue.
43        # The commit-queue clients check each patch anyway, but there is not sense
44        # in adding things to the commit-queue when they won't be processed by it.
45        assert(queue.is_ews())
46        latest_status = attachment.status_for_queue(queue)
47        if not latest_status:
48            return True
49        # Only ever re-submit to the EWS if the EWS specifically requested a retry.
50        # This allows us to restart the EWS feeder queue, without all r? patches
51        # being retried as a result of that restart!
52        # In some future version we might add a "force" button to allow the user
53        # to override this restriction.
54        return latest_status.is_retry_request()
55
56    def _add_attachment_to_ews_queues(self, attachment):
57        for queue in Queue.all_ews():  # all_ews() currently includes the style-queue
58            if self._should_add_to_ews_queue(queue, attachment):
59                queue.work_items().add_work_item(attachment.id)
60
61    def post(self):
62        attachment_id = self._int_from_request("attachment_id")
63        attachment = Attachment(attachment_id)
64        self._add_attachment_to_ews_queues(attachment)
65