# Copyright 2016 OpenMarket Ltd
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
swagger: '2.0'
info:
  title: "Matrix Push Notification API"
  version: "1.0.0"
host: localhost:8008
schemes:
  - https
  - http
basePath: /_matrix/push/v1
consumes:
  - application/json
produces:
  - application/json
paths:
  "/notify":
    post:
      summary: Notify a push gateway about an event.
      description: |-
        This endpoint is invoked by HTTP pushers to notify a push gateway about
        an event or update the number of unread notifications a user has.
        In the former case it will contain selected information about the event.
        In either case it may contain numeric counts of the number of unread
        events of different types the user has. The counts may be sent along
        with a notification about an event or by themselves.

        Notifications about a particular event will normally cause the user to be
        alerted in some way. It is therefore necessary to perform duplicate
        suppression for such notifications using the ``event_id`` field to avoid
        retries of this HTTP API causing duplicate alerts. The operation of
        updating counts of unread notifications should be idempotent and
        therefore do not require duplicate suppression.

        Notifications are sent to the URL configured when the pusher is created.
        This means that the HTTP path may be different depending on the push
        gateway.
      operationId: notify
      parameters:
        - in: body
          name: notification
          description: Information about the push notification.
          required: true
          schema:
            type: object
            example: {
              "notification": {
                "event_id": "$3957tyerfgewrf384",
                "room_id": "!slw48wfj34rtnrf:example.com",
                "type": "m.room.message",
                "sender": "@exampleuser:matrix.org",
                "sender_display_name": "Major Tom",
                "room_name": "Mission Control",
                "room_alias": "#exampleroom:matrix.org",
                "prio": "high",
                "content": {
                  "msgtype": "m.text",
                  "body": "I'm floating in a most peculiar way."
                },
                "counts": {
                  "unread" : 2,
                  "missed_calls": 1
                },
                "devices": [
                  {
                    "app_id": "org.matrix.matrixConsole.ios",
                    "pushkey": "V2h5IG9uIGVhcnRoIGRpZCB5b3UgZGVjb2RlIHRoaXM/",
                    "pushkey_ts": 12345678,
                    "data" : {},
                    "tweaks": {
                      "sound": "bing"
                    }
                  }
                ]
              }
            }
            required: ["notification"]
            properties:
              notification:
                type: object
                title: Notification
                description: Information about the push notification
                required: ["devices"]
                properties:
                  event_id:
                    type: string
                    description: |-
                      The Matrix event ID of the event being notified about.
                      This is required if the notification is about a
                      particular Matrix event. It may be omitted for notifications
                      that only contain updated badge counts. This ID can and
                      should be used to detect duplicate notification requests.
                  room_id:
                    type: string
                    description: |-
                      The ID of the room in which this event occurred.
                      Required if the notification relates to a specific
                      Matrix event.
                  type:
                    type: string
                    description: |-
                      The type of the event as in the event's ``type`` field.
                  sender:
                    type: string
                    description: |-
                      The sender of the event as in the corresponding event field.
                  sender_display_name:
                    type: string
                    description: |-
                      The current display name of the sender in the room in which
                      the event occurred.
                  room_name:
                    type: string
                    description: The name of the room in which the event occurred.
                  room_alias:
                    type: string
                    description: An alias to display for the room in which the event occurred.
                  user_is_target:
                    type: boolean
                    description: |-
                      This is true if the user receiving the notification is the
                      subject of a member event (i.e. the ``state_key`` of the
                      member event is equal to the user's Matrix ID).
                  prio:
                    type: string
                    enum: ["high", "low"]
                    description: |-
                      The priority of the notification. If omitted, ``high`` is
                      assumed. This may be used by push gateways to deliver less
                      time-sensitive notifications in a way that will preserve
                      battery power on mobile devices.
                  content:
                    type: object
                    title: EventContent
                    description: |-
                      The ``content`` field from the event, if present. The pusher
                      may omit this if the event had no content or for any other
                      reason.
                  counts:
                    type: object
                    title: Counts
                    description: |-
                      This is a dictionary of the current number of unacknowledged
                      communications for the recipient user. Counts whose value is
                      zero should be omitted.
                    properties:
                      unread:
                        type: integer
                        description: |-
                          The number of unread messages a user has across all of the
                          rooms they are a member of.
                      missed_calls:
                        type: integer
                        description: |-
                          The number of unacknowledged missed calls a user has
                          across all rooms of which they are a member.
                  devices:
                    type: array
                    title: Devices
                    description: |-
                      This is an array of devices that the notification should be sent to.
                    items:
                      type: object
                      title: Device
                      properties:
                        app_id:
                          type: string
                          description: |-
                            The ``app_id`` given when the pusher was created.
                        pushkey:
                          type: string
                          description: The ``pushkey`` given when the pusher was created.
                        pushkey_ts:
                          type: integer
                          description: |-
                            The unix timestamp (in seconds) when the
                            pushkey was last updated.
                        data:
                          type: object
                          title: PusherData
                          description: |-
                            A dictionary of additional pusher-specific data. For
                            'http' pushers, this is the data dictionary passed in at
                            pusher creation minus the ``url`` key.
                        tweaks:
                          type: object
                          title: Tweaks
                          description: |-
                            A dictionary of customisations made to the way this
                            notification is to be presented. These are added by push rules.
                      required: ['app_id', 'pushkey']
      responses:
        200:
          description: A list of rejected push keys.
          examples:
            application/json: {
              "rejected": [ "V2h5IG9uIGVhcnRoIGRpZCB5b3UgZGVjb2RlIHRoaXM/" ]
            }
          schema:
            type: object  # empty json object
            properties:
              rejected:
                type: array
                description: |-
                  A list of all pushkeys given in the notification request that
                  are not valid. These could have been rejected by an upstream
                  gateway because they have expired or have never been valid.
                  Homeservers must cease sending notification requests for these
                  pushkeys and remove the associated pushers. It may not
                  necessarily be the notification in the request that failed:
                  it could be that a previous notification to the same pushkey
                  failed. May be empty.
                items:
                  type: string
                  description: A pushkey that has been rejected.
            required: ['rejected']
