Merge pull request #1327 from thelounge/xpaw/view-changelog

Changelog viewer and updater checker in the client

client/css/style.css

@@ -80,6 +80,7 @@ button {
 
 code,
 kbd,
+pre,
 .irc-monospace,
 textarea#user-specified-css-input {
 	font-family: Consolas, Menlo, Monaco, "Lucida Console", "DejaVu Sans Mono", "Courier New", monospace;
@@ -93,6 +94,19 @@ code {
 	border-radius: 2px;
 }
 
+pre {
+	display: block;
+	padding: 9.5px;
+	margin: 0 0 10px;
+	font-size: 13px;
+	line-height: 1.42857143;
+	color: #333;
+	word-break: break-all;
+	word-wrap: break-word;
+	background-color: #f5f5f5;
+	border-radius: 4px;
+}
+
 kbd {
 	display: inline-block;
 	font-size: 11px;
@@ -140,12 +154,25 @@ kbd {
 	opacity: 0.6;
 }
 
+.btn-sm {
+	padding: 4px 8px;
+	border-width: 1px;
+	letter-spacing: 0;
+	word-spacing: 0;
+	text-transform: none;
+}
+
 .container {
 	margin: 80px auto;
 	max-width: 480px;
 	touch-action: pan-y;
 }
 
+#help .container,
+#changelog .container {
+	max-width: 600px;
+}
+
 ::-moz-placeholder {
 	color: rgba(0, 0, 0, 0.35);
 	opacity: 1;
@@ -208,7 +235,11 @@ kbd {
 #chat .nick .from::before,
 #chat .action .from::before,
 #chat .toggle-button::after,
+.changelog-version::before,
 .context-menu-item::before,
+#help .website-link::before,
+#help .documentation-link::before,
+#help .report-issue-link::before,
 #nick button::before,
 #image-viewer .previous-image-btn::before,
 #image-viewer .next-image-btn::before {
@@ -259,6 +290,21 @@ kbd {
 	color: #7f8c8d;
 }
 
+#help .website-link::before,
+#help .documentation-link::before,
+#help .report-issue-link::before,
+#chat .toggle-button {
+	display: inline-block;
+	margin-right: 5px;
+	/* These 2 directives are loosely taken from .fa-fw */
+	width: 1.35em;
+	text-align: center;
+}
+
+#help .website-link::before { content: "\f0ac"; /* http://fontawesome.io/icon/globe/ */ }
+#help .documentation-link::before { content: "\f19d"; /* http://fontawesome.io/icon/graduation-cap/ */ }
+#help .report-issue-link::before { content: "\f188"; /* http://fontawesome.io/icon/bug/ */ }
+
 .session-list strong {
 	display: block;
 }
@@ -704,6 +750,7 @@ kbd {
 	width: 100%;
 }
 
+#windows li,
 #windows p,
 #windows label,
 #settings .error {
@@ -761,6 +808,11 @@ kbd {
 	padding-bottom: 7px;
 }
 
+#windows .window h2 small {
+	color: inherit;
+	line-height: 30px;
+}
+
 #windows .window h3 {
 	color: #7f8c8d;
 	font-size: 18px;
@@ -1520,8 +1572,7 @@ part/quit messages where we don't load previews (adds a blank line otherwise) */
 	display: table-row;
 }
 
-#help .help-item,
-#help .about {
+#help .help-item {
 	font-size: 14px;
 }
 
@@ -1540,10 +1591,6 @@ part/quit messages where we don't load previews (adds a blank line otherwise) */
 	margin-bottom: 0;
 }
 
-#help .about {
-	line-height: 1.8;
-}
-
 .is-apple #help .key-all,
 #help .key-apple {
 	display: none;
@@ -1572,6 +1619,66 @@ part/quit messages where we don't load previews (adds a blank line otherwise) */
 	grid-column-start: 2;
 }
 
+.changelog-text {
+	line-height: 1.5;
+}
+
+.changelog-text p {
+	margin-bottom: 16px;
+}
+
+.window#changelog h3 {
+	font-size: 20px;
+	border-bottom: 1px solid #7f8c8d;
+	color: #7f8c8d;
+	margin: 30px 0 10px;
+	padding-bottom: 7px;
+}
+
+.changelog-version {
+	display: block;
+	padding: 16px;
+	margin-bottom: 16px;
+	border-radius: 2px;
+	background-color: #d9edf7;
+	color: #31708f;
+	transition: color 0.2s, background-color 0.2s;
+}
+
+.changelog-version::before {
+	margin-right: 6px;
+	content: "\f250"; /* http://fontawesome.io/icon/hourglass-o/ */
+}
+
+.changelog-version.new-version {
+	color: #8a6d3b;
+	background-color: #fcf8e3;
+}
+
+.changelog-version.new-version::before {
+	content: "\f087"; /* http://fontawesome.io/icon/thumbs-o-up/ */
+}
+
+.changelog-version.error {
+	color: #a94442;
+	background-color: #f2dede;
+}
+
+.changelog-version.error::before {
+	margin-right: 6px;
+	content: "\f06a"; /* http://fontawesome.io/icon/exclamation-circle/ */
+}
+
+.changelog-version.up-to-date {
+	background-color: #dff0d8;
+	color: #3c763d;
+}
+
+.changelog-version.up-to-date::before {
+	margin-right: 6px;
+	content: "\f00c"; /* http://fontawesome.io/icon/check/ */
+}
+
 #form {
 	background: #eee;
 	border-top: 1px solid #ddd;
@@ -2055,7 +2162,6 @@ part/quit messages where we don't load previews (adds a blank line otherwise) */
 	#windows .header .topic,
 	#settings .error,
 	#help .help-item,
-	#help .about,
 	#loading,
 	#context-menu,
 	#form #input,

client/index.html

@@ -85,6 +85,7 @@
 				<div id="connect" class="window"></div>
 				<div id="settings" class="window"></div>
 				<div id="help" class="window"></div>
+				<div id="changelog" class="window"></div>
 			</div>
 		</div>
 	</div>

client/js/lounge.js

@@ -332,65 +332,43 @@ $(function() {
 		$(this).closest(".msg.condensed").toggleClass("closed");
 	});
 
-	sidebar.on("click", ".chan, button", function(e, data) {
-		// Pushes states to history web API when clicking elements with a data-target attribute.
-		// States are very trivial and only contain a single `clickTarget` property which
-		// contains a CSS selector that targets elements which takes the user to a different view
-		// when clicked. The `popstate` event listener will trigger synthetic click events using that
-		// selector and thus take the user to a different view/state.
-		if (data && data.pushState === false) {
-			return;
-		}
-		const self = $(this);
-		const target = self.data("target");
-		if (!target) {
-			return;
-		}
-		const state = {};
+	let changelogRequestedAt = 0;
 
-		if (self.hasClass("chan")) {
-			state.clickTarget = `#sidebar .chan[data-id="${self.data("id")}"]`;
-		} else {
-			state.clickTarget = `#footer button[data-target="${target}"]`;
-		}
-
-		if (history && history.pushState) {
-			if (data && data.replaceHistory && history.replaceState) {
-				history.replaceState(state, null, target);
-			} else {
-				history.pushState(state, null, target);
-			}
-		}
-	});
-
-	sidebar.on("click", ".chan, button", function() {
+	const openWindow = function openWindow(e, data) {
 		var self = $(this);
 		var target = self.data("target");
 		if (!target) {
 			return;
 		}
 
-		chat.data(
-			"id",
-			self.data("id")
-		);
-		socket.emit(
-			"open",
-			self.data("id")
-		);
+		// This is a rather gross hack to account for sources that are in the
+		// sidebar specifically. Needs to be done better when window management gets
+		// refactored.
+		const inSidebar = self.parents("#sidebar").length > 0;
 
-		sidebar.find(".active").removeClass("active");
-		self.addClass("active")
-			.find(".badge")
-			.removeClass("highlight")
-			.empty();
+		if (inSidebar) {
+			chat.data(
+				"id",
+				self.data("id")
+			);
+			socket.emit(
+				"open",
+				self.data("id")
+			);
 
-		if (sidebar.find(".highlight").length === 0) {
-			utils.toggleNotificationMarkers(false);
+			sidebar.find(".active").removeClass("active");
+			self.addClass("active")
+				.find(".badge")
+				.removeClass("highlight")
+				.empty();
+
+			if (sidebar.find(".highlight").length === 0) {
+				utils.toggleNotificationMarkers(false);
+			}
+
+			sidebarSlide.toggle(false);
 		}
 
-		sidebarSlide.toggle(false);
-
 		var lastActive = $("#windows > .active");
 
 		lastActive
@@ -447,8 +425,49 @@ $(function() {
 			socket.emit("sessions:get");
 		}
 
+		if (target === "#help" || target === "#changelog") {
+			const now = Date.now();
+			// Don't check more than once an hour
+			if (now - changelogRequestedAt > 3600 * 1000) {
+				changelogRequestedAt = now;
+				socket.emit("changelog");
+			}
+		}
+
 		focus();
-	});
+
+		// Pushes states to history web API when clicking elements with a data-target attribute.
+		// States are very trivial and only contain a single `clickTarget` property which
+		// contains a CSS selector that targets elements which takes the user to a different view
+		// when clicked. The `popstate` event listener will trigger synthetic click events using that
+		// selector and thus take the user to a different view/state.
+		if (data && data.pushState === false) {
+			return;
+		}
+		const state = {};
+
+		if (self.attr("id")) {
+			state.clickTarget = `#${self.attr("id")}`;
+		} else if (self.hasClass("chan")) {
+			state.clickTarget = `#sidebar .chan[data-id="${self.data("id")}"]`;
+		} else {
+			state.clickTarget = `#footer button[data-target="${target}"]`;
+		}
+
+		if (history && history.pushState) {
+			if (data && data.replaceHistory && history.replaceState) {
+				history.replaceState(state, null, target);
+			} else {
+				history.pushState(state, null, target);
+			}
+		}
+
+		return false;
+	};
+
+	sidebar.on("click", ".chan, button", openWindow);
+	$("#help").on("click", "#view-changelog, #back-to-help", openWindow);
+	$("#changelog").on("click", "#back-to-help", openWindow);
 
 	sidebar.on("click", "#sign-out", function() {
 		socket.emit("sign-out");

client/js/socket-events/changelog.js

@@ -0,0 +1,22 @@
+"use strict";
+
+const $ = require("jquery");
+const socket = require("../socket");
+const templates = require("../../views");
+
+socket.on("changelog", function(data) {
+	const container = $("#changelog-version-container");
+
+	if (data.latest) {
+		container.addClass("new-version");
+		container.html(templates.new_version(data));
+	} else if (data.current.changelog) {
+		container.addClass("up-to-date");
+		container.text("The Lounge is up to date!");
+	} else {
+		container.addClass("error");
+		container.text("An error has occurred, try to reload the page.");
+	}
+
+	$("#changelog").html(templates.windows.changelog(data));
+});

client/js/socket-events/configuration.js

@@ -14,6 +14,7 @@ socket.on("configuration", function(data) {
 	$("#settings").html(templates.windows.settings(data));
 	$("#connect").html(templates.windows.connect(data));
 	$("#help").html(templates.windows.help(data));
+	$("#changelog").html(templates.windows.changelog());
 
 	$("#play").on("click", () => {
 		const pop = new Audio();

client/js/socket-events/index.js

@@ -19,3 +19,4 @@ require("./users");
 require("./sign_out");
 require("./sessions_list");
 require("./configuration");
+require("./changelog");

client/views/index.js

@@ -26,10 +26,12 @@ module.exports = {
 		settings: require("./windows/settings.tpl"),
 		connect: require("./windows/connect.tpl"),
 		help: require("./windows/help.tpl"),
+		changelog: require("./windows/changelog.tpl"),
 	},
 
 	chan: require("./chan.tpl"),
 	chat: require("./chat.tpl"),
+	new_version: require("./new_version.tpl"),
 	contextmenu_divider: require("./contextmenu_divider.tpl"),
 	contextmenu_item: require("./contextmenu_item.tpl"),
 	date_marker: require("./date-marker.tpl"),

client/views/new_version.tpl

@@ -0,0 +1,6 @@
+The Lounge <b>{{latest.version}}</b>{{#if latest.prerelease}} (pre-release){{/if}}
+is now available.
+
+<a href="{{latest.url}}" target="_blank" rel="noopener">
+	Read more on GitHub
+</a>

client/views/windows/changelog.tpl

@@ -0,0 +1,20 @@
+<div class="header">
+	<button class="lt" aria-label="Toggle channel list"></button>
+</div>
+<div class="container">
+	<a href="#" id="back-to-help" data-target="#help">« Help</a>
+
+	{{#if current}}
+		<h1 class="title">Release notes for {{current.version}}</h1>
+
+		{{#if current.changelog}}
+			<h3>Introduction</h3>
+			<div class="changelog-text">{{{current.changelog}}}</div>
+		{{else}}
+			<p>Unable to retrieve releases from GitHub.</p>
+			<p><a href="https://github.com/thelounge/lounge/releases/tag/v{{current.version}}" target="_blank" rel="noopener">View release notes for this version on GitHub</a></p>
+		{{/if}}
+	{{else}}
+		<p>Loading changelog…</p>
+	{{/if}}
+</div>

client/views/windows/help.tpl

@@ -4,6 +4,51 @@
 <div class="container">
 	<h1 class="title">Help</h1>
 
+	<h2>
+		<small class="pull-right">
+			v{{version}}
+			(<a href="#" id="view-changelog" data-target="#changelog">release notes</a>)
+		</small>
+		About The Lounge
+	</h2>
+
+	<div class="about">
+		{{#unless public}}
+			<p id="changelog-version-container" class="changelog-version">
+				Checking for updates...
+			</p>
+		{{/unless}}
+
+		{{#if gitCommit}}
+			<p>
+				The Lounge is running from source
+				(<a href="https://github.com/thelounge/lounge/tree/{{gitCommit}}" target="_blank" rel="noopener">commit <code>{{gitCommit}}</code></a>).
+			</p>
+
+			<ul>
+				<li>
+					Compare
+					<a href="https://github.com/thelounge/lounge/compare/{{gitCommit}}...master" target="_blank" rel="noopener">between <code>{{gitCommit}}</code> and <code>master</code></a>
+					to see what you are missing
+				</li>
+				<li>
+					Compare
+					<a href="https://github.com/thelounge/lounge/compare/{{version}}...{{gitCommit}}" target="_blank" rel="noopener">between <code>{{version}}</code> and <code>{{gitCommit}}</code></a>
+					to see your local changes</li>
+			</ul>
+		{{/if}}
+
+		<p>
+			<a href="https://thelounge.github.io/" target="_blank" rel="noopener" class="website-link">Website</a>
+		</p>
+		<p>
+			<a href="https://thelounge.github.io/docs/" target="_blank" rel="noopener" class="documentation-link">Documentation</a>
+		</p>
+		<p>
+			<a href="https://github.com/thelounge/lounge/issues/new" target="_blank" rel="noopener" class="report-issue-link">Report an issue…</a>
+		</p>
+	</div>
+
 	<h2>Keyboard Shortcuts</h2>
 
 	<div class="help-item">
@@ -11,7 +56,7 @@
 			<kbd class="key-all">Ctrl</kbd><kbd class="key-apple">⌘</kbd> + <kbd>↑</kbd> / <kbd>↓</kbd>
 		</div>
 		<div class="description">
-			<p>Switch to the previous/next window in the channel list</p>
+			<p>Switch to the previous/next window in the channel list.</p>
 		</div>
 	</div>
 
@@ -481,20 +526,4 @@
 			</p>
 		</div>
 	</div>
-
-	<h2>About The Lounge</h2>
-
-	<p class="about">
-		{{#if gitCommit}}
-			The Lounge is running from source
-			(<a href="https://github.com/thelounge/lounge/tree/{{ gitCommit }}" target="_blank" rel="noopener"><code>{{ gitCommit }}</code></a>).<br>
-		{{else}}
-			The Lounge is in version <strong>{{version}}</strong>
-			(<a href="https://github.com/thelounge/lounge/releases/tag/v{{ version }}" target="_blank" rel="noopener">See release notes</a>).<br>
-		{{/if}}
-
-		<a href="https://thelounge.github.io/" target="_blank" rel="noopener">Website</a><br>
-		<a href="https://thelounge.github.io/docs/" target="_blank" rel="noopener">Documentation</a><br>
-		<a href="https://github.com/thelounge/lounge/issues/new" target="_blank" rel="noopener">Report a bug</a>
-	</p>
 </div>

src/plugins/changelog.js

@@ -0,0 +1,79 @@
+"use strict";
+
+const pkg = require("../../package.json");
+const request = require("request");
+
+module.exports = {
+	fetch,
+};
+
+const versions = {
+	current: {
+		version: `v${pkg.version}`,
+	},
+};
+
+function fetch(callback) {
+	// Serving information from cache
+	if (versions.current.changelog) {
+		callback(versions);
+		return;
+	}
+
+	request.get({
+		uri: "https://api.github.com/repos/thelounge/lounge/releases",
+		headers: {
+			Accept: "application/vnd.github.v3.html", // Request rendered markdown
+			"User-Agent": pkg.name + "; +" + pkg.repository.git, // Identify the client
+		},
+	}, (error, response, body) => {
+		if (error || response.statusCode !== 200) {
+			callback(versions);
+			return;
+		}
+
+		let i;
+		let release;
+		let prerelease = false;
+
+		body = JSON.parse(body);
+
+		// Find the current release among releases on GitHub
+		for (i = 0; i < body.length; i++) {
+			release = body[i];
+			if (release.tag_name === versions.current.version) {
+				versions.current.changelog = release.body_html;
+				prerelease = release.prerelease;
+
+				break;
+			}
+		}
+
+		// Find the latest release made after the current one if there is one
+		if (i > 0) {
+			for (let j = 0; j < i; j++) {
+				release = body[j];
+
+				// Find latest release or pre-release if current version is also a pre-release
+				if (!release.prerelease || release.prerelease === prerelease) {
+					versions.latest = {
+						prerelease: release.prerelease,
+						version: release.tag_name,
+						url: release.html_url,
+					};
+
+					break;
+				}
+			}
+		}
+
+		// Emptying cached information after 15 minutes
+		setTimeout(() => {
+			delete versions.current.changelog;
+			delete versions.latest;
+		}, 15 * 60 * 1000
+		);
+
+		callback(versions);
+	});
+}

src/server.js

@@ -14,6 +14,7 @@ var colors = require("colors/safe");
 const net = require("net");
 const Identification = require("./identification");
 const themes = require("./plugins/themes");
+const changelog = require("./plugins/changelog");
 
 // The order defined the priority: the first available plugin is used
 // ALways keep local auth in the end, which should always be enabled.
@@ -217,7 +218,7 @@ function index(req, res, next) {
 
 	// If prefetch is enabled, but storage is not, we have to allow mixed content
 	if (Helper.config.prefetchStorage || !Helper.config.prefetch) {
-		policies.push("img-src 'self'");
+		policies.push("img-src 'self' https://user-images.githubusercontent.com");
 		policies.unshift("block-all-mixed-content");
 	} else {
 		policies.push("img-src http: https:");
@@ -340,6 +341,12 @@ function initializeClient(socket, client, token, lastMessage) {
 		}
 	);
 
+	socket.on("changelog", function() {
+		changelog.fetch((data) => {
+			socket.emit("changelog", data);
+		});
+	});
+
 	socket.on("msg:preview:toggle", function(data) {
 		const networkAndChan = client.find(data.target);
 		if (!networkAndChan) {