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65 lines
2 KiB
JavaScript
65 lines
2 KiB
JavaScript
/**
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* @author GCHQ Contributor [3]
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* @copyright Crown Copyright 2019
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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import OperationError from "../errors/OperationError.mjs";
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import Protobuf from "../lib/Protobuf.mjs";
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/**
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* Protobuf Decode operation
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*/
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class ProtobufDecode extends Operation {
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/**
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* ProtobufDecode constructor
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*/
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constructor() {
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super();
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this.name = "Protobuf Decode";
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this.module = "Protobuf";
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this.description = "Decodes any Protobuf encoded data to a JSON representation of the data using the field number as the field key.<br><br>If a .proto schema is defined, the encoded data will be decoded with reference to the schema. Only one message instance will be decoded. <br><br><u>Show Unknown Fields</u><br>When a schema is used, this option shows fields that are present in the input data but not defined in the schema.<br><br><u>Show Types</u><br>Show the type of a field next to its name. For undefined fields, the wiretype and example types are shown instead.";
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this.infoURL = "https://wikipedia.org/wiki/Protocol_Buffers";
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this.inputType = "ArrayBuffer";
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this.outputType = "JSON";
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this.args = [
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{
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name: "Schema (.proto text)",
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type: "text",
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value: "",
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rows: 8,
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hint: "Drag and drop is enabled on this ingredient"
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},
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{
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name: "Show Unknown Fields",
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type: "boolean",
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value: false
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},
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{
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name: "Show Types",
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type: "boolean",
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value: false
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}
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];
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}
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/**
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* @param {ArrayBuffer} input
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* @param {Object[]} args
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* @returns {JSON}
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*/
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run(input, args) {
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input = new Uint8Array(input);
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try {
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return Protobuf.decode(input, args);
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} catch (err) {
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throw new OperationError(err);
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}
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}
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}
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export default ProtobufDecode;
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