# 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.
openapi: 3.1.0
info:
  title: Matrix Application Service API
  version: 1.0.0
paths:
  "/thirdparty/protocol/{protocol}":
    get:
      summary: Retrieve metadata about a specific protocol that the application
        service supports.
      description: |-
        This API is called by the homeserver when it wants to present clients
        with specific information about the various third-party networks that
        an application service supports.
      operationId: getProtocolMetadata
      security:
        - homeserverAccessToken: []
      parameters:
        - in: path
          name: protocol
          description: The protocol ID.
          required: true
          example: irc
          schema:
            type: string
      responses:
        "200":
          description: The protocol was found and metadata returned.
          content:
            application/json:
              schema:
                $ref: definitions/protocol.yaml
        "401":
          description: |-
            The homeserver has not supplied credentials to the application service.
            Optional error information can be included in the body of this response.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "403":
          description: The credentials supplied by the homeserver were rejected.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_FORBIDDEN"
                  }
        "404":
          description: No protocol was found with the given path.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_NOT_FOUND"
                  }
  "/thirdparty/user/{protocol}":
    get:
      summary: Retrieve the Matrix User ID of a corresponding third-party user.
      description: |-
        This API is called by the homeserver in order to retrieve a Matrix
        User ID linked to a user on the third-party network, given a set of
        user parameters.
      operationId: queryUserByProtocol
      security:
        - homeserverAccessToken: []
      parameters:
        - in: path
          name: protocol
          description: The protocol ID.
          required: true
          example: irc
          schema:
            type: string
        - in: query
          name: fields...
          description: |-
            One or more custom fields that are passed to the application
            service to help identify the user.
          schema:
            type: string
      responses:
        "200":
          description: The Matrix User IDs found with the given parameters.
          content:
            application/json:
              schema:
                $ref: definitions/user_batch.yaml
        "401":
          description: |-
            The homeserver has not supplied credentials to the application service.
            Optional error information can be included in the body of this response.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "403":
          description: The credentials supplied by the homeserver were rejected.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_FORBIDDEN"
                  }
        "404":
          description: No users were found with the given parameters.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_NOT_FOUND"
                  }
  "/thirdparty/location/{protocol}":
    get:
      summary: Retrieve Matrix-side portal rooms leading to a third-party location.
      description: Retrieve a list of Matrix portal rooms that lead to the matched
        third-party location.
      operationId: queryLocationByProtocol
      security:
        - homeserverAccessToken: []
      parameters:
        - in: path
          name: protocol
          description: The protocol ID.
          required: true
          example: irc
          schema:
            type: string
        - in: query
          name: fields...
          description: |-
            One or more custom fields that are passed to the application
            service to help identify the third-party location.
          schema:
            type: string
      responses:
        "200":
          description: At least one portal room was found.
          content:
            application/json:
              schema:
                $ref: definitions/location_batch.yaml
        "401":
          description: |-
            The homeserver has not supplied credentials to the application service.
            Optional error information can be included in the body of this response.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "403":
          description: The credentials supplied by the homeserver were rejected.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_FORBIDDEN"
                  }
        "404":
          description: No mappings were found with the given parameters.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_NOT_FOUND"
                  }
  /thirdparty/location:
    get:
      summary: Reverse-lookup third-party locations given a Matrix room alias.
      description: |-
        Retrieve an array of third-party network locations from a Matrix room
        alias.
      operationId: queryLocationByAlias
      security:
        - homeserverAccessToken: []
      parameters:
        - in: query
          name: alias
          description: The Matrix room alias to look up.
          schema:
            type: string
      responses:
        "200":
          description: All found third-party locations.
          content:
            application/json:
              schema:
                $ref: definitions/location_batch.yaml
        "401":
          description: |-
            The homeserver has not supplied credentials to the application service.
            Optional error information can be included in the body of this response.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "403":
          description: The credentials supplied by the homeserver were rejected.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_FORBIDDEN"
                  }
        "404":
          description: No mappings were found with the given parameters.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_NOT_FOUND"
                  }
  /thirdparty/user:
    get:
      summary: Reverse-lookup third-party users given a Matrix User ID.
      description: Retrieve an array of third-party users from a Matrix User ID.
      operationId: queryUserByID
      security:
        - homeserverAccessToken: []
      parameters:
        - in: query
          name: userid
          description: The Matrix User ID to look up.
          schema:
            type: string
      responses:
        "200":
          description: An array of third-party users.
          content:
            application/json:
              schema:
                $ref: definitions/user_batch.yaml
        "401":
          description: |-
            The homeserver has not supplied credentials to the application service.
            Optional error information can be included in the body of this response.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "403":
          description: The credentials supplied by the homeserver were rejected.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_UNAUTHORIZED"
                  }
        "404":
          description: No mappings were found with the given parameters.
          content:
            application/json:
              schema:
                $ref: ../client-server/definitions/errors/error.yaml
              examples:
                response:
                  value: {
                    "errcode": "COM.EXAMPLE.MYAPPSERVICE_NOT_FOUND"
                  }
servers:
  - url: "{protocol}://{hostname}{basePath}"
    variables:
      protocol:
        enum:
          - http
          - https
        default: https
      hostname:
        default: localhost:8008
      basePath:
        default: /_matrix/app/v1
components:
  securitySchemes:
    $ref: definitions/security.yaml