luci-app-51ddns: add remote access agent interface

applications/luci-app-51ddns/Makefile

@@ -0,0 +1,14 @@
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=LuCI support for 51DDNS remote access
+LUCI_URL:=https://github.com/21hkcloud/51ddns-openwrt
+LUCI_DESCRIPTION:=Configure and monitor the 51DDNS remote access agent.
+LUCI_DEPENDS:=+luci-base +51ddns-agent
+LUCI_PKGARCH:=all
+
+PKG_LICENSE:=Apache-2.0
+PKG_MAINTAINER:=Jinshuan Wang <21hkcloud@gmail.com>
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature

applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js

@@ -0,0 +1,141 @@
+'use strict';
+'require view';
+'require form';
+'require rpc';
+'require uci';
+
+const callServiceList = rpc.declare({
+	object: 'service',
+	method: 'list',
+	params: [ 'name' ],
+	expect: { '': {} },
+});
+
+const callLocalStatus = rpc.declare({
+	object: 'luci.51ddns',
+	method: 'status',
+	expect: { '': {} },
+});
+
+const callAgentInfo = rpc.declare({
+	object: 'luci.51ddns',
+	method: 'info',
+	expect: { '': {} },
+});
+
+function serviceState(data) {
+	const instances = data?.['51ddns-agent']?.instances || {};
+	const running = Object.values(instances).some(instance => instance?.running);
+
+	return {
+		running,
+		label: running ? _('Running') : _('Not running'),
+		className: running ? 'alert-message success' : 'alert-message warning',
+	};
+}
+
+function formatDate(value) {
+	const date = new Date(value || '');
+
+	if (Number.isNaN(date.getTime()))
+		return _('Synchronizing');
+
+	return date.toLocaleString([], {
+		year: 'numeric',
+		month: '2-digit',
+		day: '2-digit',
+		hour: '2-digit',
+		minute: '2-digit',
+	});
+}
+
+function remainingState(value) {
+	const expires = new Date(value || '');
+
+	if (Number.isNaN(expires.getTime()))
+		return { label: _('Synchronizing'), className: 'alert-message notice' };
+
+	const milliseconds = expires.getTime() - Date.now();
+	if (milliseconds <= 0)
+		return { label: _('Expired'), className: 'alert-message error' };
+
+	const hours = Math.ceil(milliseconds / 3600000);
+	const days = Math.ceil(hours / 24);
+	const label = hours > 48
+		? N_(days, 'About %d day', 'About %d days').format(days)
+		: N_(hours, '%d hour', '%d hours').format(hours);
+
+	return {
+		label,
+		className: milliseconds <= 3 * 86400000
+			? 'alert-message warning'
+			: 'alert-message success',
+	};
+}
+
+return view.extend({
+	load() {
+		return Promise.all([
+			uci.load('51ddns'),
+			L.resolveDefault(callServiceList('51ddns-agent'), {}),
+			L.resolveDefault(callLocalStatus(), {}),
+			L.resolveDefault(callAgentInfo(), {}),
+		]);
+	},
+
+	render(data) {
+		const state = serviceState(data[1]);
+		const local = data[2] || {};
+		const info = data[3] || {};
+		const plan = local.plan || null;
+		const remaining = remainingState(plan?.expires_at);
+		const map = new form.Map(
+			'51ddns',
+			_('51DDNS Remote Access'),
+			_('Enter the account token once to register this router automatically. Device identity and relay settings are managed by the 51DDNS control plane.'),
+		);
+		const section = map.section(form.NamedSection, 'main', 'agent', _('Quick setup'));
+		section.addremove = false;
+
+		const status = section.option(form.DummyValue, '_status', _('Service status'));
+		status.rawhtml = true;
+		status.cfgvalue = () =>
+			`<span class="${state.className}"><strong>${state.label}</strong></span>`;
+
+		const version = section.option(form.DummyValue, '_version', _('Agent version'));
+		version.cfgvalue = () => info.version || _('Unavailable');
+
+		const planName = section.option(form.DummyValue, '_plan_name', _('Current plan'));
+		planName.cfgvalue = () => plan?.product_name || _('No active plan');
+
+		const expiresAt = section.option(form.DummyValue, '_expires_at', _('Expires at'));
+		expiresAt.cfgvalue = () => plan ? formatDate(plan.expires_at) : _('Not bound');
+
+		const remainingTime = section.option(form.DummyValue, '_remaining_time', _('Time remaining'));
+		remainingTime.rawhtml = true;
+		remainingTime.cfgvalue = () => {
+			if (!plan)
+				return `<span class="alert-message warning"><strong>${_('Bind or purchase a plan')}</strong></span>`;
+
+			return `<span class="${remaining.className}"><strong>${remaining.label}</strong></span>`;
+		};
+
+		const consoleButton = section.option(form.Button, '_console', _('Console'));
+		consoleButton.inputtitle = _('Open 51DDNS Console');
+		consoleButton.inputstyle = 'apply';
+		consoleButton.onclick = () =>
+			window.open('https://console.51ddns.com/console#/workbench', '_blank', 'noopener,noreferrer');
+
+		const enabled = section.option(form.Flag, 'enabled', _('Enable'));
+		enabled.rmempty = false;
+		enabled.default = enabled.disabled;
+
+		const token = section.option(form.Value, 'account_token', _('Account token'));
+		token.password = true;
+		token.rmempty = false;
+		token.placeholder = '51d_...';
+		token.description = _('Copy the token from the 51DDNS console. All devices in the same account share this token.');
+
+		return map.render();
+	},
+});

applications/luci-app-51ddns/po/templates/51ddns.pot

@@ -0,0 +1,108 @@
+msgid ""
+msgstr "Content-Type: text/plain; charset=UTF-8"
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:66
+msgid "%d hour"
+msgid_plural "%d hours"
+msgstr[0] ""
+msgstr[1] ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:94
+#: applications/luci-app-51ddns/root/usr/share/luci/menu.d/luci-app-51ddns.json:3
+msgid "51DDNS Remote Access"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:65
+msgid "About %d day"
+msgid_plural "About %d days"
+msgstr[0] ""
+msgstr[1] ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:133
+msgid "Account token"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:105
+msgid "Agent version"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:118
+msgid "Bind or purchase a plan"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:123
+msgid "Console"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:137
+msgid ""
+"Copy the token from the 51DDNS console. All devices in the same account "
+"share this token."
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:108
+msgid "Current plan"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:129
+msgid "Enable"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:95
+msgid ""
+"Enter the account token once to register this router automatically. Device "
+"identity and relay settings are managed by the 51DDNS control plane."
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:60
+msgid "Expired"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:111
+msgid "Expires at"
+msgstr ""
+
+#: applications/luci-app-51ddns/root/usr/share/rpcd/acl.d/luci-app-51ddns.json:3
+msgid "Grant access to the 51DDNS configuration"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:109
+msgid "No active plan"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:112
+msgid "Not bound"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:32
+msgid "Not running"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:124
+msgid "Open 51DDNS Console"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:97
+msgid "Quick setup"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:32
+msgid "Running"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:100
+msgid "Service status"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:41
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:56
+msgid "Synchronizing"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:114
+msgid "Time remaining"
+msgstr ""
+
+#: applications/luci-app-51ddns/htdocs/luci-static/resources/view/51ddns/overview.js:106
+msgid "Unavailable"
+msgstr ""

applications/luci-app-51ddns/root/usr/libexec/rpcd/luci.51ddns

@@ -0,0 +1,59 @@
+#!/bin/sh
+
+. /usr/share/libubox/jshn.sh
+
+print_status() {
+	status_has_plan=0
+	status_product_name=''
+	status_expires_at=''
+	status_payload=''
+
+	if [ -s /var/lib/51ddns/status.json ]; then
+		status_payload="$(cat /var/lib/51ddns/status.json 2>/dev/null)"
+		json_load "$status_payload" 2>/dev/null
+
+		if json_select plan >/dev/null 2>&1; then
+			status_has_plan=1
+			json_get_var status_product_name product_name
+			json_get_var status_expires_at expires_at
+		fi
+		json_cleanup
+	fi
+
+	json_init
+	if [ "$status_has_plan" = 1 ]; then
+		json_add_object plan
+		json_add_string product_name "$status_product_name"
+		json_add_string expires_at "$status_expires_at"
+		json_close_object
+	fi
+	json_dump
+	json_cleanup
+}
+
+case "$1" in
+	list)
+		echo '{"status":{},"info":{}}'
+		;;
+	call)
+		case "$2" in
+			status)
+				print_status
+				;;
+			info)
+				version="$(/usr/bin/51ddns-agent --version 2>/dev/null | head -n 1)"
+				json_init
+				json_add_string version "$version"
+				json_dump
+				json_cleanup
+				;;
+			*)
+				echo '{"error":"method not found"}'
+				exit 1
+				;;
+		esac
+		;;
+	*)
+		exit 1
+		;;
+esac

applications/luci-app-51ddns/root/usr/share/luci/menu.d/luci-app-51ddns.json

@@ -0,0 +1,13 @@
+{
+	"admin/services/51ddns": {
+		"title": "51DDNS Remote Access",
+		"order": 35,
+		"action": {
+			"type": "view",
+			"path": "51ddns/overview"
+		},
+		"depends": {
+			"acl": [ "luci-app-51ddns" ]
+		}
+	}
+}

applications/luci-app-51ddns/root/usr/share/rpcd/acl.d/luci-app-51ddns.json

@@ -0,0 +1,15 @@
+{
+	"luci-app-51ddns": {
+		"description": "Grant access to the 51DDNS configuration",
+		"read": {
+			"ubus": {
+				"luci.51ddns": [ "status", "info" ],
+				"service": [ "list" ]
+			},
+			"uci": [ "51ddns" ]
+		},
+		"write": {
+			"uci": [ "51ddns" ]
+		}
+	}
+}