From 0cb719a40447e30011142714d5e5ce55c051a118 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Wed, 3 Mar 2021 19:35:11 +0300
Subject: add basic local plugin uninstaller

---
 classes/pluginhost.php |  6 ++++++
 classes/pref/prefs.php | 35 ++++++++++++++++++++++++++++++++++-
 js/PrefHelpers.js      | 16 ++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/classes/pluginhost.php b/classes/pluginhost.php
index bd0e9f4d8..746b780e4 100755
--- a/classes/pluginhost.php
+++ b/classes/pluginhost.php
@@ -623,4 +623,10 @@ class PluginHost {
 			user_error("get_public_method_url: requested method '$method' of '" . get_class($sender) . "' is private.");
 		}
 	}
+
+	function is_local(Plugin $plugin) {
+		$ref = new ReflectionClass(get_class($plugin));
+
+		return basename(dirname(dirname($ref->getFileName()))) == "plugins.local";
+	}
 }
diff --git a/classes/pref/prefs.php b/classes/pref/prefs.php
index 275f41656..09fbce9a1 100644
--- a/classes/pref/prefs.php
+++ b/classes/pref/prefs.php
@@ -796,6 +796,7 @@ class Pref_Prefs extends Handler_Protected {
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
 			$about = $plugin->about();
+			$is_local = $tmppluginhost->is_local($plugin);
 			$version = htmlspecialchars($this->_get_plugin_version($plugin));
 
 			if ($about[3] ?? false) {
@@ -822,6 +823,14 @@ class Pref_Prefs extends Handler_Protected {
 								<i class='material-icons'>open_in_new</i> <?= __("More info...") ?></button>
 					<?php } ?>
 
+					<?php if ($_SESSION["access_level"] >= 10 && $is_local) { ?>
+						<button dojoType='dijit.form.Button'
+								onclick='Helpers.Plugins.uninstall("<?= htmlspecialchars($name) ?>")'>
+							<?= \Controls\icon("delete") ?>
+							<?= __("Uninstall") ?>
+						</button>
+					<?php } ?>
+
 					<?php if ($version) { ?>
 						<div dojoType='dijit.Tooltip' connectId='PLABEL-<?= htmlspecialchars($name) ?>' position='after'>
 							<?= $version ?>
@@ -842,6 +851,7 @@ class Pref_Prefs extends Handler_Protected {
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
 			$about = $plugin->about();
+			$is_local = $tmppluginhost->is_local($plugin);
 			$version = htmlspecialchars($this->_get_plugin_version($plugin));
 
 			if (empty($about[3]) || $about[3] == false) {
@@ -889,6 +899,14 @@ class Pref_Prefs extends Handler_Protected {
 									<i class='material-icons'>open_in_new</i> <?= __("More info...") ?></button>
 					<?php } ?>
 
+					<?php if ($_SESSION["access_level"] >= 10 && $is_local) { ?>
+						<button dojoType='dijit.form.Button'
+								onclick='Helpers.Plugins.uninstall("<?= htmlspecialchars($name) ?>")'>
+							<?= \Controls\icon("delete") ?>
+							<?= __("Uninstall") ?>
+						</button>
+					<?php } ?>
+
 					<?php if ($version) { ?>
 						<div dojoType='dijit.Tooltip' connectId='PLABEL-<?= htmlspecialchars($name) ?>' position='after'>
 							<?= $version ?>
@@ -1235,9 +1253,24 @@ class Pref_Prefs extends Handler_Protected {
 		}
 	}
 
+	function uninstallPlugin() {
+		if ($_SESSION["access_level"] >= 10) {
+			$plugin_name = basename(clean($_REQUEST['plugin']));
+			$status = 0;
+
+			$plugin_dir = dirname(dirname(__DIR__)) . "/plugins.local/$plugin_name";
+
+			if (is_dir($plugin_dir)) {
+				$status = $this->_recursive_rmdir($plugin_dir);
+			}
+
+			print json_encode(['status' => $status]);
+		}
+	}
+
 	function installPlugin() {
 		if ($_SESSION["access_level"] >= 10 && Config::get(Config::ENABLE_PLUGIN_INSTALLER)) {
-			$plugin_name = clean($_REQUEST['plugin']);
+			$plugin_name = basename(clean($_REQUEST['plugin']));
 			$all_plugins = $this->_get_available_plugins();
 			$plugin_dir = dirname(dirname(__DIR__)) . "/plugins.local";
 
diff --git a/js/PrefHelpers.js b/js/PrefHelpers.js
index e6a37c6e8..241bb6e71 100644
--- a/js/PrefHelpers.js
+++ b/js/PrefHelpers.js
@@ -349,6 +349,22 @@ const	Helpers = {
 				}
 			});
 		},
+		uninstall: function(plugin) {
+			const msg = __("Uninstall plugin %s?").replace("%s", plugin);
+
+			if (confirm(msg)) {
+				Notify.progress("Loading, please wait...");
+
+				xhr.json("backend.php", {op: "pref-prefs", method: "uninstallPlugin", plugin: plugin}, (reply) => {
+					if (reply && reply.status == 1)
+						Helpers.Prefs.refresh();
+					else {
+						Notify.error("Plugin uninstallation failed.");
+					}
+				});
+
+			}
+		},
 		install: function() {
 			const dialog = new fox.SingleUseDialog({
 				PI_RES_ALREADY_INSTALLED: "PI_RES_ALREADY_INSTALLED",
-- 
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