121 lines
3.4 KiB
JavaScript
121 lines
3.4 KiB
JavaScript
const Constants = require("./constants.js");
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const Spec = require("../../specs/spec_0_3.js");
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const JSONParser = require("../../formats/json/parser.js");
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const Base64Parser = require("../../formats/base64.js");
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const BinaryHTTPReceiver = require("./receiver_binary.js");
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const parserByType = {};
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parserByType[Constants.MIME_JSON] = new JSONParser();
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parserByType[Constants.MIME_OCTET_STREAM] = {
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parse(payload) { return payload; }
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};
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const parsersByEncoding = {};
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parsersByEncoding.null = parserByType;
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parsersByEncoding[undefined] = parserByType;
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// base64
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parsersByEncoding[Constants.ENCODING_BASE64] = {};
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parsersByEncoding[Constants.ENCODING_BASE64][Constants.MIME_JSON] =
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new JSONParser(new Base64Parser());
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parsersByEncoding[Constants.ENCODING_BASE64][Constants.MIME_OCTET_STREAM] = {
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parse(payload) { return payload; }
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};
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const allowedContentTypes = [];
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allowedContentTypes.push(Constants.MIME_JSON);
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allowedContentTypes.push(Constants.MIME_OCTET_STREAM);
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const allowedEncodings = [];
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allowedEncodings.push(Constants.ENCODING_BASE64);
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const requiredHeaders = [];
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requiredHeaders.push(Constants.BINARY_HEADERS_03.TYPE);
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requiredHeaders.push(Constants.BINARY_HEADERS_03.SPEC_VERSION);
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requiredHeaders.push(Constants.BINARY_HEADERS_03.SOURCE);
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requiredHeaders.push(Constants.BINARY_HEADERS_03.ID);
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const setterByHeader = {};
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setterByHeader[Constants.BINARY_HEADERS_03.TYPE] = {
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name: "type",
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parser: (v) => v
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};
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setterByHeader[Constants.BINARY_HEADERS_03.SPEC_VERSION] = {
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name: "specversion",
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parser: () => "0.3"
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};
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setterByHeader[Constants.BINARY_HEADERS_03.SOURCE] = {
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name: "source",
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parser: (v) => v
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};
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setterByHeader[Constants.BINARY_HEADERS_03.ID] = {
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name: "id",
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parser: (v) => v
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};
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setterByHeader[Constants.BINARY_HEADERS_03.TIME] = {
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name: "time",
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parser: (v) => new Date(Date.parse(v))
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};
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setterByHeader[Constants.BINARY_HEADERS_03.SCHEMA_URL] = {
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name: "schemaurl",
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parser: (v) => v
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};
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setterByHeader[Constants.HEADER_CONTENT_TYPE] = {
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name: "dataContentType",
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parser: (v) => v
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};
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setterByHeader[Constants.BINARY_HEADERS_03.CONTENT_ENCONDING] = {
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name: "dataContentEncoding",
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parser: (v) => v
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};
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setterByHeader[Constants.BINARY_HEADERS_03.SUBJECT] = {
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name: "subject",
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parser: (v) => v
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};
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// Leaving this in place for now. TODO: fixme
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// eslint-disable-next-line
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function checkDecorator(payload, headers) {
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Object.keys(headers)
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.map((header) => header.toLocaleLowerCase("en-US"))
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.filter((header) =>
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header === Constants.BINARY_HEADERS_03.CONTENT_ENCONDING)
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.filter((header) => !allowedEncodings.includes(headers[header]))
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.forEach((header) => {
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// TODO: using forEach here seems off
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const err = new TypeError("unsupported datacontentencoding");
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err.errors = [headers[header]];
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throw err;
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});
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}
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// Leaving this in place for now. TODO: fixme
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// eslint-disable-next-line
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function Receiver(configuration) {
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this.receiver = new BinaryHTTPReceiver(
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parsersByEncoding,
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setterByHeader,
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allowedContentTypes,
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requiredHeaders,
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Spec,
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Constants.SPEC_V03,
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Constants.BINARY_HEADERS_03.EXTENSIONS_PREFIX,
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checkDecorator
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);
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}
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Receiver.prototype.check = function(payload, headers) {
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this.receiver.check(payload, headers);
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};
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Receiver.prototype.parse = function(payload, headers) {
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// firstly specific local checks
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this.check(payload, headers);
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return this.receiver.parse(payload, headers);
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};
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module.exports = Receiver;
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