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127 lines
3.7 KiB
TypeScript
127 lines
3.7 KiB
TypeScript
/**
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* Class representing a script file.
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*
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* This does NOT represent a script that is actively running and
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* being evaluated. See RunningScript for that
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*/
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import { calculateRamUsage } from "./RamCalculations";
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import { ScriptUrl } from "./ScriptUrl";
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import { Generic_fromJSON, Generic_toJSON, Reviver } from "../utils/JSONReviver";
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import { roundToTwo } from "../utils/helpers/roundToTwo";
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let globalModuleSequenceNumber = 0;
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export class Script {
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// Code for this script
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code = "";
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// Filename for the script file
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filename = "";
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// url of the script if any, only for NS2.
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url = "";
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// The dynamic module generated for this script when it is run.
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// This is only applicable for NetscriptJS
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module: any = "";
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// The timestamp when when the script was last updated.
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moduleSequenceNumber: number;
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// Only used with NS2 scripts; the list of dependency script filenames. This is constructed
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// whenever the script is first evaluated, and therefore may be out of date if the script
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// has been updated since it was last run.
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dependencies: ScriptUrl[] = [];
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// Amount of RAM this Script requres to run
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ramUsage = 0;
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// hostname of server that this script is on.
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server = "";
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constructor(fn = "", code = "", server = "", otherScripts: Script[] = []) {
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this.filename = fn;
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this.code = code;
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this.ramUsage = 0;
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this.server = server; // hostname of server this script is on
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this.module = "";
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this.moduleSequenceNumber = ++globalModuleSequenceNumber;
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if (this.code !== "") {
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this.updateRamUsage(otherScripts);
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}
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}
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/**
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* Download the script as a file
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*/
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download(): void {
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const filename = this.filename + ".js";
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const file = new Blob([this.code], { type: "text/plain" });
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if (window.navigator.msSaveOrOpenBlob) {
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// IE10+
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window.navigator.msSaveOrOpenBlob(file, filename);
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} else {
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// Others
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const a = document.createElement("a"),
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url = URL.createObjectURL(file);
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a.href = url;
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a.download = filename;
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document.body.appendChild(a);
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a.click();
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setTimeout(function () {
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document.body.removeChild(a);
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window.URL.revokeObjectURL(url);
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}, 0);
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}
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}
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/**
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* Marks this script as having been updated. It will be recompiled next time something tries
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* to exec it.
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*/
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markUpdated(): void {
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this.module = "";
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this.moduleSequenceNumber = ++globalModuleSequenceNumber;
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}
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/**
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* Save a script from the script editor
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* @param {string} code - The new contents of the script
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* @param {Script[]} otherScripts - Other scripts on the server. Used to process imports
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*/
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saveScript(filename: string, code: string, hostname: string, otherScripts: Script[]): void {
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// Update code and filename
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this.code = code.replace(/^\s+|\s+$/g, "");
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this.filename = filename;
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this.server = hostname;
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this.updateRamUsage(otherScripts);
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this.markUpdated();
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}
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/**
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* Calculates and updates the script's RAM usage based on its code
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* @param {Script[]} otherScripts - Other scripts on the server. Used to process imports
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*/
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async updateRamUsage(otherScripts: Script[]): Promise<void> {
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const res = await calculateRamUsage(this.code, otherScripts);
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if (res > 0) {
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this.ramUsage = roundToTwo(res);
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}
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}
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// Serialize the current object to a JSON save state
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toJSON(): any {
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return Generic_toJSON("Script", this);
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}
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// Initializes a Script Object from a JSON save state
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// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
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static fromJSON(value: any): Script {
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return Generic_fromJSON(Script, value.data);
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}
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}
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Reviver.constructors.Script = Script;
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