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Serve a Thing Description for the gateway - closes #2927
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| /** | ||
| * API Root Controller. | ||
| * | ||
| * Handles requests to /. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
|
|
||
| import express from 'express'; | ||
| import Gateway from '../models/gateway'; | ||
|
|
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| function build(): express.Router { | ||
| const controller = express.Router(); | ||
|
|
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| /** | ||
| * WoT Thing Description Directory | ||
| * https://www.w3.org/TR/wot-discovery/#exploration-directory | ||
| */ | ||
| controller.get('/', (request, response) => { | ||
| const host = request.headers.host; | ||
| const secure = request.secure; | ||
| const td = Gateway.getDescription(host, secure); | ||
| response.set('Content-type', 'application/td+json'); | ||
| response.status(200).send(td); | ||
| }); | ||
|
|
||
| return controller; | ||
| } | ||
|
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| export default build; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,244 @@ | ||
| /** | ||
| * Gateway Model. | ||
| * | ||
| * Represents the gateway and its interaction affordances, including | ||
| * acting as a Thing Description Directory. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
|
|
||
| import * as Constants from '../constants'; | ||
| import { ThingDescription } from './thing'; | ||
|
|
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| export default class Gateway { | ||
|
|
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| /** | ||
| * | ||
| * Get a JSON Thing Description for this gateway. | ||
| * | ||
| * @param {String} reqHost request host, if coming via HTTP | ||
| * @param {Boolean} reqSecure whether or not the request is secure, i.e. TLS | ||
| * @returns {ThingDescription} A Thing Description describing the gateway. | ||
| */ | ||
| static getDescription(reqHost?: string, reqSecure?: boolean): ThingDescription { | ||
| const origin = `${reqSecure ? 'https' : 'http'}://${reqHost}`; | ||
| const desc: ThingDescription = { | ||
| '@context': [ | ||
| 'https://www.w3.org/2022/wot/td/v1.1', | ||
| 'https://www.w3.org/2022/wot/discovery' | ||
| ], | ||
| '@type': 'ThingDirectory', | ||
| 'id': origin, | ||
| 'base': origin, | ||
| 'title': 'WebThings Gateway', | ||
| 'securityDefinitions': { | ||
| 'oauth2_sc': { | ||
| 'scheme': 'oauth2', | ||
| 'flow': 'code', | ||
| 'authorization': `${origin}${Constants.OAUTH_PATH}/authorize`, | ||
| 'token': `${origin}${Constants.OAUTH_PATH}/token`, | ||
| 'scopes': [Constants.THINGS_PATH, `${Constants.THINGS_PATH}:readwrite`], | ||
| } | ||
| }, | ||
| 'security': 'oauth2_sc', | ||
| 'properties': { | ||
| 'things': { | ||
| 'title': 'Things', | ||
| 'description': 'Retrieve all Thing Descriptions', | ||
| 'type': 'array', | ||
| 'items': { | ||
| 'type': 'object' | ||
| }, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things', | ||
| 'htv:methodName': 'GET', | ||
| 'response': { | ||
| 'description': 'Success response', | ||
| 'htv:statusCodeValue': 200, | ||
| 'contentType': 'application/json' | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'Token must contain scope', | ||
| 'htv:statusCodeValue': 400 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| }, | ||
| 'actions': { | ||
| 'createAnonymousThing': { | ||
| 'description': 'Create a Thing Description', | ||
| 'input': { | ||
| 'type': 'object' | ||
| }, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things', | ||
| 'htv:methodName': 'POST', | ||
| 'contentType': 'application/json', | ||
| 'response': { | ||
| 'htv:statusCodeValue': 201 | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'Invalid or duplicate Thing Description', | ||
| 'htv:statusCodeValue': 400 | ||
| }, | ||
| { | ||
| 'description': 'Internal error saving new Thing Description', | ||
| 'htv:statusCodeValue': 500 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| }, | ||
| 'retrieveThing': { | ||
| 'description': 'Retrieve a Thing Description', | ||
| 'uriVariables': { | ||
| 'id': { | ||
| '@type': 'ThingID', | ||
| 'title': 'Thing Description ID', | ||
| 'type': 'string', | ||
| 'format': 'iri-reference' | ||
| } | ||
| }, | ||
| 'output': { | ||
| 'description': 'The schema is implied by the content type', | ||
| 'type': 'object' | ||
| }, | ||
| 'safe': true, | ||
| 'idempotent': true, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things/{id}', | ||
| 'htv:methodName': 'GET', | ||
| 'response': { | ||
| 'description': 'Success response', | ||
| 'htv:statusCodeValue': 200, | ||
| 'contentType': 'application/json' | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'TD with the given id not found', | ||
| 'htv:statusCodeValue': 404 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| }, | ||
| 'updateThing': { | ||
| 'description': 'Update a Thing Description', | ||
| 'uriVariables': { | ||
| 'id': { | ||
| '@type': 'ThingID', | ||
| 'title': 'Thing Description ID', | ||
| 'type': 'string', | ||
| 'format': 'iri-reference' | ||
| } | ||
| }, | ||
| 'input': { | ||
| 'type': 'object' | ||
| }, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things/{id}', | ||
| 'htv:methodName': 'PUT', | ||
| 'contentType': 'application/json', | ||
| 'response': { | ||
| 'description': 'Success response', | ||
| 'htv:statusCodeValue': 200 | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'Invalid serialization or TD', | ||
| 'htv:statusCodeValue': 400 | ||
| }, | ||
| { | ||
| 'description': 'Failed to update Thing', | ||
| 'htv:statusCodeValue': 500 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| }, | ||
| 'partiallyUpdateThing': { | ||
| 'description': 'Partially update a Thing Description', | ||
| 'uriVariables': { | ||
| 'id': { | ||
| '@type': 'ThingID', | ||
| 'title': 'Thing Description ID', | ||
| 'type': 'string', | ||
| 'format': 'iri-reference' | ||
| } | ||
| }, | ||
| 'input': { | ||
| 'type': 'object' | ||
| }, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things/{id}', | ||
| 'htv:methodName': 'PATCH', | ||
| 'contentType': 'application/merge-patch+json', | ||
| 'response': { | ||
| 'description': 'Success response', | ||
| 'htv:statusCodeValue': 200 | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'Request body missing required parameters', | ||
| 'htv:statusCodeValue': 400 | ||
| }, | ||
| { | ||
| 'description': 'TD with the given id not found', | ||
| 'htv:statusCodeValue': 404 | ||
| }, | ||
| { | ||
| 'description': 'Failed to update Thing', | ||
| 'htv:statusCodeValue': 500 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| }, | ||
| 'deleteThing': { | ||
| 'description': 'Delete a Thing Description', | ||
| 'uriVariables': { | ||
| 'id': { | ||
| '@type': 'ThingID', | ||
| 'title': 'Thing Description ID', | ||
| 'type': 'string', | ||
| 'format': 'iri-reference' | ||
| } | ||
| }, | ||
| 'forms': [ | ||
| { | ||
| 'href': '/things/{id}', | ||
| 'htv:methodName': 'DELETE', | ||
| 'response': { | ||
| 'description': 'Success response', | ||
| 'htv:statusCodeValue': 204 | ||
| }, | ||
| 'additionalResponses': [ | ||
| { | ||
| 'description': 'TD with the given id not found', | ||
| 'htv:statusCodeValue': 404 | ||
| }, | ||
| { | ||
| 'description': 'Failed to remove Thing', | ||
| 'htv:statusCodeValue': 500 | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return desc; | ||
| } | ||
| } |
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