luci-app-p910nd: convert to JS

Simple p910nd printer management, and some level of automation that
detects whether the typically necessary kmods are installed, and if not
provides quick links to install those.

Tested on: 21.02.1, 22.03.6, 23.05.2

Signed-off-by: Paul Donald <newtwen@gmail.com>

applications/luci-app-p910nd/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2008-2014 The LuCI Team <luci@lists.subsignal.org>
+# Copyright (C) 2024 systemcrash
 #
 # This is free software, licensed under the Apache License, Version 2.0 .
 #

applications/luci-app-p910nd/htdocs/luci-static/resources/view/p910nd.js

@@ -0,0 +1,268 @@
+//
+// Copyright (c) 2024 systemcrash
+//
+
+'use strict';
+'require fs';
+'require form';
+'require uci';
+'require ui';
+'require view';
+'require network';
+
+var pkg = {
+	get Name() { return 'p910nd'; },
+	get Description() { return _('Port 910n print daemon'); },
+	get URL() { return 'https://openwrt.org/packages/pkgdata/' + pkg.Name + '/'; }
+};
+
+return view.extend({
+
+	option_install_kmod_lp: function() {	
+		window.open(L.url('admin/system/opkg') +
+			'?query=kmod-lp', '_blank', 'noopener');
+	},
+	option_install_kmod_usb: function() {	
+		window.open(L.url('admin/system/opkg') +
+			'?query=kmod-usb-printer', '_blank', 'noopener');
+	},
+
+	load: function () {
+
+		return Promise.all([
+			network.getDevices(),
+			// data[0]
+
+			//	# find -L /dev -maxdepth 3 -type c -name lp[0-9]
+			fs.exec_direct('/usr/bin/find', [ '-L', '/dev', '-maxdepth', '3', '-type', 'c', '-name', 'lp[0-9]' ]).catch(function(err) {
+				ui.addNotification(null, E('p', {}, _('Error executing "find" command: ' + err.message)));
+					return '';
+			}).then(data => {
+				if(data)
+					return data.trim().split('\n').sort();
+				else
+					return null;
+			}),
+			// data[1]
+
+			fs.exec_direct('/usr/libexec/opkg-call', [ 'list-installed' ], 'text').catch(function(err) {
+				ui.addNotification(null, E('p', {}, _('Error calling "opkg list-installed": ' + err.message)));
+				console.log(err);
+					return '';
+			}).then(data => {return data.trim().split('\n').sort().filter((string) => string.includes(': kmod-'));}),
+			// data[2]
+
+		]);
+	},
+
+	render: function (data) {
+
+		var m, d, s, o;
+
+		const have_kmod_lp = data[2] ? data[2].find((string) => string.includes('kmod-lp')) ? true: false : false;
+		const have_kmod_usb_printer = data[2] ? data[2].find((string) => string.includes('kmod-usb-printer')) ? true: false : false;
+
+		m = new form.Map(pkg.Name, pkg.Description, _('map ports 9100-9109 to local printers.'));
+		m.readonly = !L.hasViewPermission();
+
+		if ( !have_kmod_usb_printer || !have_kmod_lp ) {			
+			s = m.section(form.NamedSection, 'kmods', 'kmods', _(),
+				_('One of these kernel modules is needed for p910nd to find your printer.') + '<br />' +
+				_('It is safe to install both, even if only one is needed.')
+				);
+			s.render = L.bind(function(view /*, ... */) {
+				return form.NamedSection.prototype.render.apply(this, this.varargs(arguments, 1))
+					.then(L.bind(function(node) {
+						node.appendChild(E('div', { 'class': 'control-group' }, [
+							E('button', {
+								'class': 'btn cbi-button-action',
+								'click': ui.createHandlerFn(view, 'option_install_kmod_lp', this.map),
+								'disabled': have_kmod_lp || null,
+								'title': _('Parallel port line printer device support'),
+							}, [ 'kmod-lp' ]),
+							' ',
+							E('button', {
+								'class': 'btn cbi-button-action',
+								'click': ui.createHandlerFn(view, 'option_install_kmod_usb', this.map),
+								'disabled': have_kmod_usb_printer || null,
+								'title': _('For USB connected printers'),
+							}, [ 'kmod-usb-printer' ])
+						]));
+						node.appendChild(E('br'));
+						node.appendChild(E('br'));
+						return node;
+					}, this));
+			}, s, this);
+		}
+
+		s = m.section(form.GridSection, pkg.Name);
+		s.addremove = true;
+		s.nodescriptions = true;
+		s.anonymous = true;
+		s.sortable = true;
+		s.rowcolors = true;
+		s.addbtntitle = _('Add printer config');
+		s.modaltitle = _('Settings');
+
+		o = s.option(form.Flag, 'enabled', _('Enabled'));
+		o.default = true;
+
+		o = s.option(form.Value, 'device', _('Device'),
+			_('Note: character device assignment can change upon reboot/reconnect with multiple USB devices.') + '<br />' +
+			_('Connected %s devices show in this list.').format('<code>lpX</code>'));
+		o.placeholder = '/dev/usb/lp*';
+		if (data[1]) {
+			for (const chardev of data[1]) {
+				o.value(chardev);
+			}
+		}
+		o.rmempty = true;
+
+		o = s.option(form.ListValue, 'port', _('Port'),
+			_('Local TCP listen port for this printer.') + '<br />' +
+			_('Be aware: %s also listens on port 9100.').format('<code>node_exporter</code>'));
+		for (var i = 0; i < 10; i++) {
+			o.value(i, 9100+i);
+		}
+		o.rmempty = true;
+
+		o = s.option(form.Value, 'bind', _('Listen IP'),
+			_('Listen on a specific IP.'));
+		o.datatype = 'ipaddr("nomask")';
+		o.placeholder = _('any');
+		var net_devices = data[0];
+		net_devices.forEach(net_dev => {
+			net_dev.getIPAddrs().forEach(addr => o.value(addr.split('/')[0], E([], [addr.split('/')[0], ' (', E('strong', {}, net_dev.getName()), ')'])));
+			net_dev.getIP6Addrs().forEach(addr => o.value(addr.split('/')[0], E([], [addr.split('/')[0], ' (', E('strong', {}, net_dev.getName()), ')'])));
+		});
+
+		o = s.option(form.Flag, 'bidirectional',
+			_('Bidirectional mode'),
+			_('Whether this print port is bi-directional.')  + '<br />' +
+			_('Note: USB hotplug correctly detects this.'));
+		o.modalonly = true;
+
+		o = s.option(form.Flag, 'runas_root', _('Run as root'),
+			_('Overrides default of %s.').format('<code>user p910nd, group lp</code>'));
+		o.modalonly = true;
+
+		o = s.option(form.Flag, 'mdns', 'mDNS',
+			_('Whether to advertise this printer via %s.', 'mDNS/Bonjour/ZeroConf').format('mDNS/Bonjour/ZeroConf') + '<br />' +
+			_('Note: %s only advertises one (the first) printer on this host.', 'mDNS').format('mDNS') + '<br />' +
+			_('Note: USB hotplug attempts to provide some of the values below.'));
+
+		/* See https://developer.apple.com/bonjour/printing-specification/ ( -> bonjourprinting-1.2.1.pdf ) for
+		 * a description of the Bonjour fields a la Apple.
+		 */
+		o = s.option(form.Value, 'mdns_ty', 'mdns_ty',
+			_('The %s type element.').format('mDNS') + '<br />' +
+			_('User readable description of maker and model.'));
+		o.placeholder = 'HP Color LaserJet CP2025dn';
+		o.rmempty = true;
+		o.optional = true;
+		o.depends({mdns: '1'});
+
+		o = s.option(form.Value, 'mdns_note', 'mdns_note',
+			_('Serves as Location in Apple standards.'));
+		o.placeholder = _('By the router');
+		o.rmempty = true;
+		o.optional = true;
+		o.modalonly = true;
+		o.depends({mdns: '1'});
+
+		o = s.option(form.Value, 'mdns_product', 'mdns_product',
+			_('The %s value.').format('<code>IEEE1284 Product</code>') + '<br />' +
+			_('Note: must be %s.').format('<code>(</code>' + _('enclosed within parentheses') + '<code>)</code>'));
+		o.placeholder = '(Color LaserJet CP2025dn)';
+		o.rmempty = true;
+		o.optional = true;
+		o.modalonly = true;
+		o.depends({mdns: '1'});
+		o.write = function(section_id, value) {
+			if (value){
+				if (!value.startsWith('('))
+					value = '(' + value;
+				if (!value.endsWith(')'))
+					value = value + ')';
+				if (value === '()')
+					return;
+				uci.set(pkg.Name, section_id, 'mdns_product', value);
+			}
+		}
+
+		const string_to_array = function(string, uppercase=false) {
+			if (string && !Array.isArray(string)) {				
+				return [...new Set(string.split(',')
+				.map(element => uppercase? element.toUpperCase().trim(): element.trim() )
+				.filter(el => el!=' ' && el!='')
+				.sort() ) ];
+			}
+		};
+
+		o = s.option(form.Value, 'mdns_mfg', 'mdns_mfg',
+			_('The %s value.').format('<code>IEEE1284 MANUFACTURER/MFG</code>'));
+		o.placeholder = _('Manufacturer');
+		const mfrs = string_to_array('Apple,Brother,Canon,Deli,Epson,\
+		Hewlett-Packard,HP,Hitachi,Kyocera,Lexmark,OKI,Ricoh,Samsung,Xerox,\
+		Xprinter,Zebra');
+		for(var mfr in mfrs){
+			o.value(mfrs[mfr]);
+		}
+
+		o.rmempty = true;
+		o.optional = true;
+		o.modalonly = true;
+		o.depends({mdns: '1'});
+
+		o = s.option(form.Value, 'mdns_mdl', 'mdns_mdl',
+			_('The %s value.').format('<code>IEEE1284 MODEL/MDL</code>'));
+		o.placeholder = 'CP2025dn';
+		o.rmempty = true;
+		o.optional = true;
+		o.modalonly = true;
+		o.depends({mdns: '1'});
+
+		o = s.option(form.DynamicList, 'mdns_cmd', 'mdns_cmd',
+			_('The %s value.').format('<code>IEEE1284 CMD/COMMAND SET</code>') + '<br />' +
+			_('Some examples: ') +
+			'<code>ACL</code>, <code>ESC/P</code>, <code>PCL</code>, <code>PDF17</code>,' +
+			'<code>PJL</code>, <code>POSTSCRIPT</code>, <code>PS</code>' +
+			'<br />'+
+			_('Note: Set only CMD languages that your printer understands.'));
+
+		o.cfgvalue = function(section_id) {
+			var value = uci.get(pkg.Name, section_id, 'mdns_cmd');
+			if (value && !Array.isArray(value))
+				value = value.split(',').map(el => el.trim());
+			return value;
+		}
+		o.rmempty = true;
+		o.optional = true;
+		o.modalonly = true;
+		o.modalonly = true;
+		o.depends({mdns: '1'});
+		o.write = function(section_id, value) {
+			if(value){
+				var newvalue = value.map(element => element.toUpperCase().trim())
+					.filter(el => el!=' ')
+					.filter(el => el!='')
+					.sort().join(',');
+				uci.set(pkg.Name, section_id, 'mdns_cmd', newvalue);
+			}
+		}
+		const cmds = string_to_array('ACL,BDC,BIDI-ECP,BSCCe,CAPT,CEZD,CPCA,CPCL,\
+		D4,D4PX,DESKJET,DPL,DW-PCL,DYN,\
+		END4,EPL,EPSONFX,ESC/P,ESCPL2,EXT,FWV,GDI,HAPS,\
+		HBP,HIPERMIP,IBMPPR,IPL,LIPSLX,MLC,\
+		PCL,PCL3,PCL3GUI,PCL5c,PCL5e,PCL6,PCLXL,\
+		PDF,PDF17,\
+		PJL,PML,\
+		POSTSCRIPT,PostScript Emulation,PS,\
+		PWG_RASTER,RCS,URF,URP,XL,XPP,XPS,ZPL');
+		for(var cmd in cmds){
+			o.value(cmds[cmd]);
+		}
+
+		return Promise.all([m.render()]);
+	}
+});