peliprint/app/BlueprintFramework/Libraries/ExtensionLibrary/Client/BlueprintClientLibrary.php

<?php

// Core file for the client-side library for Blueprint Extensions


namespace Pterodactyl\BlueprintFramework\Libraries\ExtensionLibrary\Client;

use Pterodactyl\Contracts\Repository\SettingsRepositoryInterface;

class BlueprintClientLibrary
{
  // Construct core
  public function __construct(
    private SettingsRepositoryInterface $settings,
  ) {
  }
  
  /**
   * Fetch a record from the database.
   * 
   * @param string $table Database table
   * @param string $record Database record
   * @return mixed Database value
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function dbGet($table, $record) {
    return $this->settings->get($table."::".$record);
  }

  /**
   * Set a database record.
   * 
   * @param string $table Database table
   * @param string $record Database record
   * @param string $value Value to store
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function dbSet($table, $record, $value) {
    return $this->settings->set($table."::".$record, $value);
  }

  /**
   * Read and returns the content of a given file.
   * 
   * @param string $path Path to file
   * @return string File contents
   * @throws string Errors encountered by `cat` shell utility
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function fileRead($path) {
    return shell_exec("cat ".escapeshellarg($path).";");
  }

  /**
   * Attempts to (non-recursively) create a file.
   * 
   * @param string $path File name/path
   * @return string Empty string unless error
   * @throws string Errors encountered by `touch` shell utility
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function fileMake($path) {
    return shell_exec("touch ".escapeshellarg($path).";");
  }

  /**
   * Attempts to (recursively) remove a file/folder.
   * It's good practice to terminate this function after a certain timeout, to prevent infinite page loads upon input. Blueprint attempts to use `yes` as an input for all questions, but might not succeed.
   * 
   * @param string $path Path to file/folder
   * @return string Empty string unless error
   * @throws string Errors encountered by `rm` shell utility
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function fileWipe($path) {
    return shell_exec("yes | rm -r ".escapeshellarg($path).";");
  }

  /**
   * Check if an extension is installed based on it's identifier.
   * 
   * @param string $identifier Extension identifier
   * @return bool Boolean
   * 
   * [BlueprintExtensionLibrary documentation](https://blueprint.zip/docs/?page=documentation/$blueprint)
   */
  public function extension($identifier): bool {
    if(str_contains($this->fileRead("::f/.blueprint/extensions/blueprint/private/db/installed_extensions"), $identifier.',')) {
      return true;
    } else {
      return false;
    }
  }
}