79 lines
2.4 KiB
JavaScript
79 lines
2.4 KiB
JavaScript
const {
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MIME_JSON,
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MIME_OCTET_STREAM,
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ENCODING_BASE64,
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BINARY_HEADERS_1,
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HEADER_CONTENT_TYPE,
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SPEC_V1
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} = require("./constants.js");
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const Spec = require("../../specs/spec_1.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 {
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isString,
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isBase64
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} = require("../../utils/fun.js");
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const parserByType = {
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[MIME_JSON] : new JSONParser(),
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[MIME_OCTET_STREAM] : { parse(payload) { return payload; } }
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};
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const parsersByEncoding = { [null] : parserByType, [undefined] : parserByType, [ENCODING_BASE64] : {} };
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parsersByEncoding[ENCODING_BASE64][MIME_JSON] = new JSONParser(new Base64Parser());
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parsersByEncoding[ENCODING_BASE64][MIME_OCTET_STREAM] = {
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parse(payload) { return payload; }
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};
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const allowedContentTypes = [MIME_JSON, MIME_OCTET_STREAM];
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const requiredHeaders = [BINARY_HEADERS_1.TYPE, BINARY_HEADERS_1.SPEC_VERSION,
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BINARY_HEADERS_1.SOURCE, BINARY_HEADERS_1.ID];
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const setterByHeader = {
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[BINARY_HEADERS_1.TYPE] : { name: "type", parser: (v) => v },
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[BINARY_HEADERS_1.SPEC_VERSION] : { name: "specversion", parser: () => "1.0" },
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[BINARY_HEADERS_1.SOURCE] : { name: "source", parser: (v) => v },
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[BINARY_HEADERS_1.ID] : { name: "id", parser: (v) => v },
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[BINARY_HEADERS_1.TIME] : { name: "time", parser: (v) => new Date(Date.parse(v)) },
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[BINARY_HEADERS_1.DATA_SCHEMA] : { name: "dataschema", parser: (v) => v },
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[HEADER_CONTENT_TYPE] : { name: "dataContentType", parser: (v) => v },
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[BINARY_HEADERS_1.SUBJECT] : { name: "subject", parser: (v) => v }
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};
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// Leaving these 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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// 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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SPEC_V1,
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BINARY_HEADERS_1.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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payload = isString(payload) && isBase64(payload)
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? Buffer.from(payload, "base64").toString()
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: payload;
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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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