feat: web component enhancements

emhttp/plugins/dynamix.plugin.manager/include/UnraidUpdateCancel.php

@@ -0,0 +1,60 @@
+<?php
+
+class UnraidUpdateCancel
+{
+  private $PLG_FILENAME;
+  private $PLG_BOOT;
+  private $PLG_VAR;
+  private $USR_LOCAL_PLUGIN_UNRAID_PATH;
+
+  public function __construct() {
+    $this->PLG_FILENAME = "unRAIDServer.plg";
+    $this->PLG_BOOT = "/boot/config/plugins/{$this->PLG_FILENAME}";
+    $this->PLG_VAR = "/var/log/plugins/{$this->PLG_FILENAME}";
+    $this->USR_LOCAL_PLUGIN_UNRAID_PATH = "/usr/local/emhttp/plugins/unRAIDServer";
+
+    // Handle the cancellation
+    $revertResult = $this->revertFiles();
+    // Return JSON response for front-end client
+    $statusCode = $revertResult['success'] ? 200 : 500;
+    http_response_code($statusCode);
+    header('Content-Type: application/json');
+    echo json_encode($revertResult);
+  }
+
+  public function revertFiles() {
+    try {
+      $command = '/sbin/mount | grep -q "/boot/previous/bz"';
+      exec($command, $output, $returnCode);
+
+      if ($returnCode !== 0) {
+        return ['success' => true]; // Nothing to revert
+      }
+
+      // Clear the results of previous unraidcheck run
+      @unlink("/tmp/unraidcheck/result.json");
+
+      // Revert changes made by unRAIDServer.plg
+      shell_exec("mv -f /boot/previous/* /boot");
+      unlink($this->PLG_BOOT);
+      unlink($this->PLG_VAR);
+      symlink("{$this->USR_LOCAL_PLUGIN_UNRAID_PATH}/{$this->PLG_FILENAME}", $this->PLG_VAR);
+
+      // Restore README.md by echoing the content into the file
+      $readmeFile = "{$this->USR_LOCAL_PLUGIN_UNRAID_PATH}/README.md";
+      $readmeContent = "**Unraid OS**\n\n";
+      $readmeContent .= "Unraid OS by [Lime Technology, Inc.](https://lime-technology.com).\n";
+      file_put_contents($readmeFile, $readmeContent);
+
+      return ['success' => true]; // Upgrade handled successfully
+    } catch (\Throwable $th) {
+      return [
+        'success' => false,
+        'message' => $th->getMessage(),
+      ];
+    }
+  }
+}
+
+// Self instantiate the class and handle the cancellation
+new UnraidUpdateCancel();