From 34dd9f4b014cf1421c8abe428b4e893ac932821b Mon Sep 17 00:00:00 2001
From: Jan Andrle <andrle.jan@centrum.cz>
Date: Wed, 6 Mar 2024 09:39:06 +0100
Subject: [PATCH] :zap: kwallet from cli

---
 bin/§kwallet.mjs | 142 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100755 bin/§kwallet.mjs

diff --git a/bin/§kwallet.mjs b/bin/§kwallet.mjs
new file mode 100755
index 0000000..175c877
--- /dev/null
+++ b/bin/§kwallet.mjs
@@ -0,0 +1,142 @@
+#!/usr/bin/env nodejsscript
+/* jshint esversion: 11,-W097, -W040, module: true, node: true, expr: true, undef: true *//* global echo, $, pipe, s, fetch, cyclicLoop */
+const css= echo.css`
+	.error{ color: lightred; }
+	.code, .method{ color: lightblue; }
+	.code::before, .code::after{ content: "\`"; }
+	.li{ padding-left: 2ch; }
+`;
+const cmd= "qdbus";
+if(!s.which(cmd))
+	$.exit(1, echo([
+		`%cError: ${cmd} not found.`,
+		`%cInstall it with: %csudo apt install ${cmd}`,
+	].join("\n"), css.error, css.unset, css.code));
+
+import { EventEmitter } from "node:events";
+const events= new EventEmitter();
+const exit_event= "exit";
+events.on(exit_event, $.exit);
+
+$.api("", true)
+.version("2024-03-05")
+.describe([
+	`KWallet CLI using ${cmd}.`,
+	"Call with no arguments to list all methods.",
+])
+.example("--wallet kdewallet folderList")
+.example("--wallet kdewallet readPassword folder entry")
+.option("--wallet, -w", "Wallet name", "kdewallet")
+.action(function({ _, wallet }){
+	const qdbus= qdbusGenerator({
+		service: "org.kde.kwalletd6",
+		methods: "/modules/kwalletd6",
+		wallet,
+		exit_event
+	});
+	if(!_.length)
+		echoLs(qdbus());
+	else{
+		//TODO: Map (`--literal` in qdbus and decode the result `echoMap`)
+		const result= qdbus(_);
+		echo(result);
+	}
+	events.emit(exit_event);
+})
+.parse();
+
+function qdbusGenerator({ service, methods, wallet, exit_event }){
+	const name= getScriptName();
+	const no_id= [
+		'allWalletsClosed',
+		'applicationDisconnected',
+		'folderListUpdated',
+		'folderUpdated',
+		'walletClosed',
+		'walletCreated',
+		'walletDeleted',
+		'walletListDirty',
+		'walletOpened',
+		'changePassword',
+		'close',
+		'closeAllWallets',
+		'deleteWallet',
+		'disconnectApplication',
+		'folderDoesNotExist',
+		'isEnabled',
+		'isOpen',
+		'keyDoesNotExist',
+		'localWallet',
+		'networkWallet',
+		'open',
+		'openAsync',
+		'openPath',
+		'openPathAsync',
+		'pamOpen',
+		'reconfigure',
+		'users',
+		'wallets'
+	];
+
+	let id;
+	const qdbus= (...args)=> s.$().run`${cmd} ${service} ${methods} ${args}`;
+	events.on(exit_event, ()=>{
+		if(!id) return;
+		qdbus("close", id, false, name);
+		id= null;
+	});
+	return function([ method, ...args ]= []){
+		if(!method) return qdbus();
+		if(no_id.includes(method)) return qdbus(method, ...args);
+		if(!id) open();
+		return qdbus(method, id, ...args, name);
+	};
+	function open(){
+		id= qdbus("open", wallet, 0, name).trim();
+		return id;
+	}
+}
+function echoMap(map){
+	map= map.slice(1, -1).split(", ").map(n=> Number.parseInt(n));
+	const ab= new ArrayBuffer(map.length);
+	const view= new Uint8Array(ab);
+	for(let i= 0; i<map.length; i++)
+		view[i]= map[i];
+
+	const words= [];
+	for(let i= 0; i<map.length; i+= 4){
+		words.push(String.fromCharCode.apply(null, view.subarray(i, i+4)));
+	}
+	pipe(
+		echo
+	)(words);
+}
+function echoLs(list){
+	const ns= "org.kde.KWallet.";
+	pipe(
+		list=> list.split("\n").filter(l=> l.startsWith("method") && -1!==l.indexOf(ns)),
+		list=> list.map(l=> l.slice(l.indexOf(" ")+1)).map(l=> l.replace(ns, "")),
+		list=> list.reduce((o, l)=> (o[Number(l.indexOf("int handle")!==-1)].push(l), o), [ [], [] ]),
+		([ no_wallet, wallet ])=> [
+			"Methods available without wallet:",
+			...no_wallet.map(formatMethod),
+			"Methods available with wallet (" + echo.format("%c--wallet", css.code) + " option):",
+			...wallet.map(formatMethod)
+		].join("\n"),
+		echo
+	)(list);
+	function formatMethod(line){
+		const ch_type= line.indexOf(" ")+1;
+		const ch_name= line.indexOf("(", ch_type);
+		return echo.format([
+			"",
+			line.slice(0, ch_type),
+			line.slice(ch_type, ch_name),
+			line.slice(ch_name)
+		].join("%c"), css.li, css.method, css.unset);
+	}
+}
+function getScriptName(){
+	const { url }= import.meta;
+	return (new URL(url)).href.slice((new URL("./", url).href.length));
+}