Show if optional PHP extensions are loaded on Admin -> About page

dev/Remote/Admin/Fetch.js

@@ -203,6 +203,12 @@ class RemoteAdminFetch extends AbstractFetchRemote {
 		this.defaultRequest(fCallback, 'AdminPasswordUpdate', oData);
 	}
 
+	/**
+	 * @param {?Function} fCallback
+	 */
+	phpExtensions(fCallback) {
+		this.defaultRequest(fCallback, 'AdminPHPExtensions');
+	}
 }
 
 export default new RemoteAdminFetch();

dev/Settings/Admin/About.js

@@ -1,8 +1,15 @@
 import ko from 'ko';
 import { Settings } from 'Common/Globals';
+import Remote from 'Remote/Admin/Fetch';
 
 export class AboutAdminSettings /*extends AbstractViewSettings*/ {
 	constructor() {
 		this.version = ko.observable(Settings.app('version'));
+		this.phpextensions = ko.observableArray();
 	}
+
+	onBuild() {
+		Remote.phpExtensions((iError, data) => iError || this.phpextensions(data.Result));
+	}
+
 }

snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Admin.php

@@ -694,6 +694,18 @@ trait Admin
 			('plugin' !== $sType ? array('Reload' => true) : true) : false);
 	}
 
+	public function DoAdminPHPExtensions() : array
+	{
+		$aResult = [];
+		foreach (['curl','gd','gmagick','imagick','intl','ldap','pdo_mysql','pdo_pgsql','pdo_sqlite','xxtea','zip'] as $name) {
+			$aResult[] = [
+				'name' => $name,
+				'loaded' => extension_loaded($name)
+			];
+		}
+		return $this->DefaultResponse(__FUNCTION__, $aResult);
+	}
+
 	private function pluginEnable(string $sName, bool $bEnable = true) : bool
 	{
 		if (!\strlen($sName))

snappymail/v/0.0.0/app/templates/Views/Admin/AdminSettingsAbout.html

@@ -10,11 +10,23 @@
 					<a class="g-ui-link" href="https://snappymail.eu/" target="_blank" style="padding-left: 0">https://snappymail.eu/</a>
 				</div>
 			</div>
-			<div class="rl-desc span6">
+			<div class="span6">
 				<h1 style="margin-bottom: 0;">SnappyMail</h1>
 				<h4 style="margin-top: 0;" data-bind="text: version"></h4>
 				<h4 style="color: #aaa; font-weight: normal;">An advanced fork of <a href="https://www.rainloop.net/" target="_blank">RainLoop</a></h4>
 				<h4 style="color: #aaa; font-weight: normal;" data-i18n="TAB_ABOUT/LABEL_TAG_HINT"></h4>
+
+				<h3>PHP optional extensions</h3>
+				<table class="table table-hover table-bordered"><thead><tr>
+					<th>Extension</th>
+					<th>Loaded</th>
+				</tr></thead><tbody data-bind="foreach: phpextensions">
+					<tr>
+						<td data-bind="text: name"></td>
+						<td data-bind="text: loaded ? '✔' : '❌'"></td>
+					</tr>
+				</tbody>
+				</table>
 			</div>
 		</div>
 	</div>