mirror of
https://github.com/bckelley/cgm-remote-monitor.git
synced 2026-08-24 03:14:12 -05:00
Sulka HaroandGitHub
6ad4ef1814
* This commit updates the uuid and socket.io packages to latest versions and enables compression over websocket * Drop the compression threshold down to 512 bytes * Enable http compression down to 512 bytes and request long poll transport only, as per current release * Add the socket.io-client back in * Use polling with the NS client * Update express to latest in 4.x line, fix tests
136 lines
2.7 KiB
JavaScript
136 lines
2.7 KiB
JavaScript
'use strict';
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const apiConst = require('../const.json')
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, stringTools = require('./stringTools')
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, uuid = require('uuid')
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, uuidNamespace = [...Buffer.from("NightscoutRocks!", "ascii")] // official namespace for NS :-)
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;
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function sendJSON ({ res, result, status, fields }) {
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const json = {
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status: status || apiConst.HTTP.OK,
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result: result
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};
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if (result) {
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json.result = result
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}
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if (fields) {
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Object.assign(json, fields);
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}
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res.status(json.status).json(json);
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}
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function sendJSONStatus (res, status, title, description, warning) {
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const json = {
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status: status
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};
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if (title) { json.message = title }
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if (description) { json.description = description }
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// Add optional warning message.
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if (warning) { json.warning = warning; }
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res.status(status)
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.json(json);
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return title;
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}
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/**
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* Validate document's common fields
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* @param {Object} doc
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* @param {any} res
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* @param {Object} options
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* @returns {any} - string with error message if validation fails, true in case of success
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*/
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function validateCommon (doc, res, options) {
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const { isPatching } = options || {};
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if ((!isPatching || typeof(doc.date) !== 'undefined')
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&& (typeof(doc.date) !== 'number'
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|| doc.date <= apiConst.MIN_TIMESTAMP)
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) {
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return sendJSONStatus(res, apiConst.HTTP.BAD_REQUEST, apiConst.MSG.HTTP_400_BAD_FIELD_DATE);
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}
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if ((!isPatching || typeof(doc.utcOffset) !== 'undefined')
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&& (typeof(doc.utcOffset) !== 'number'
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|| doc.utcOffset < apiConst.MIN_UTC_OFFSET
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|| doc.utcOffset > apiConst.MAX_UTC_OFFSET)
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) {
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return sendJSONStatus(res, apiConst.HTTP.BAD_REQUEST, apiConst.MSG.HTTP_400_BAD_FIELD_UTC);
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}
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if ((!isPatching || typeof(doc.app) !== 'undefined')
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&& (typeof(doc.app) !== 'string'
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|| stringTools.isNullOrWhitespace(doc.app))
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) {
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return sendJSONStatus(res, apiConst.HTTP.BAD_REQUEST, apiConst.MSG.HTTP_400_BAD_FIELD_APP);
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}
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return true;
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}
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/**
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* Calculate identifier for the document
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* @param {Object} doc
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* @returns string
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*/
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function calculateIdentifier (doc) {
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if (!doc)
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return undefined;
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let key = doc.device + '_' + doc.date;
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if (doc.eventType) {
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key += '_' + doc.eventType;
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}
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return uuid.v5(key, uuidNamespace);
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}
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/**
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* Validate identifier in the document
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* @param {Object} doc
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*/
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function resolveIdentifier (doc) {
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let identifier = calculateIdentifier(doc);
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if (doc.identifier) {
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if (doc.identifier !== identifier) {
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console.warn(`APIv3: Identifier mismatch (expected: ${identifier}, received: ${doc.identifier})`);
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console.log(doc);
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}
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}
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else {
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doc.identifier = identifier;
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}
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}
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module.exports = {
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sendJSON,
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sendJSONStatus,
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validateCommon,
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calculateIdentifier,
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resolveIdentifier
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};
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