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<?php |
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|
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if (!defined('UPDRAFTCENTRAL_CLIENT_DIR')) die('No access.'); |
| 4 |
|
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/** |
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* - A container for RPC commands (core UpdraftCentral commands). Commands map exactly onto method names (and hence this class should not implement anything else, beyond the constructor, and private methods) |
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* - Return format is array('response' => (string - a code), 'data' => (mixed)); |
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* |
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* RPC commands are not allowed to begin with an underscore. So, any private methods can be prefixed with an underscore. |
| 10 |
*/ |
| 11 |
class UpdraftCentral_Core_Commands extends UpdraftCentral_Commands { |
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|
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/** |
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* Executes a list of submitted commands (multiplexer) |
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* |
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* @param Array $query An array containing the commands to execute and a flag to indicate how to handle command execution failure. |
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* @return Array An array containing the results of the process. |
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*/ |
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public function execute_commands($query) { |
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|
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try { |
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|
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$commands = $query['commands']; |
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$command_results = array(); |
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$error_count = 0; |
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|
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/** |
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* Should be one of the following options: |
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* 1 = Abort on first failure |
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* 2 = Abort if any command fails |
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* 3 = Abort if all command fails (default) |
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*/ |
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$error_flag = isset($query['error_flag']) ? (int) $query['error_flag'] : 3; |
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|
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|
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foreach ($commands as $command => $params) { |
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$command_info = apply_filters('updraftcentral_get_command_info', false, $command); |
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if (!$command_info) { |
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list($_prefix, $_command) = explode('.', $command); |
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$command_results[$_prefix][$_command] = array('response' => 'rpcerror', 'data' => array('code' => 'unknown_rpc_command', 'data' => $command)); |
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|
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$error_count++; |
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if (1 === $error_flag) break; |
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} else { |
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|
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$class_prefix = $command_info['class_prefix']; |
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$action = $command_info['command']; |
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$command_php_class = $command_info['command_php_class']; |
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|
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// Instantiate the command class and execute the needed action |
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if (class_exists($command_php_class)) { |
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$instance = new $command_php_class($this->rc); |
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|
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if (method_exists($instance, $action)) { |
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$params = empty($params) ? array() : $params; |
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$call_result = call_user_func_array(array($instance, $action), $params); |
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|
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$command_results[$command] = $call_result; |
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if ('rpcerror' === $call_result['response'] || (isset($call_result['data']['error']) && $call_result['data']['error'])) { |
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$error_count++; |
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if (1 === $error_flag) break; |
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} |
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} |
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} |
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} |
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} |
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|
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if (0 !== $error_count) { |
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// N.B. These error messages should be defined in UpdraftCentral's translation file (dashboard-translations.php) |
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// before actually using this multiplexer function. |
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$message = 'general_command_execution_error'; |
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|
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switch ($error_flag) { |
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case 1: |
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$message = 'command_execution_aborted'; |
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break; |
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case 2: |
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$message = 'failed_to_execute_some_commands'; |
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break; |
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case 3: |
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if (count($commands) === $error_count) { |
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$message = 'failed_to_execute_all_commands'; |
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} |
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break; |
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default: |
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break; |
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} |
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|
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$result = array('error' => true, 'message' => $message, 'values' => $command_results); |
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} else { |
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$result = $command_results; |
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} |
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|
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} catch (Exception $e) { |
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$result = array('error' => true, 'message' => $e->getMessage()); |
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} |
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|
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return $this->_response($result); |
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} |
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|
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/** |
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* Validates the credentials entered by the user |
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* |
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* @param array $creds an array of filesystem credentials |
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* @return array An array containing the result of the validation process. |
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*/ |
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public function validate_credentials($creds) { |
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|
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try { |
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|
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$entity = $creds['entity']; |
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if (isset($creds['filesystem_credentials'])) { |
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parse_str($creds['filesystem_credentials'], $filesystem_credentials); |
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if (is_array($filesystem_credentials)) { |
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foreach ($filesystem_credentials as $key => $value) { |
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// Put them into $_POST, which is where request_filesystem_credentials() checks for them. |
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$_POST[$key] = $value; |
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} |
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} |
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} |
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|
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// Include the needed WP Core file(s) |
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// template.php needed for submit_button() which is called by request_filesystem_credentials() |
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$this->_admin_include('file.php', 'template.php'); |
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|
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// Directory entities that we currently need permissions |
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// to update. |
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$entity_directories = array( |
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'plugins' => WP_PLUGIN_DIR, |
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'themes' => WP_CONTENT_DIR.'/themes', |
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'core' => untrailingslashit(ABSPATH) |
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); |
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|
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$url = wp_nonce_url(site_url()); |
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$directory = $entity_directories[$entity]; |
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|
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// Check if credentials are valid and have sufficient |
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// privileges to create and delete (e.g. write) |
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$credentials = request_filesystem_credentials($url, '', false, $directory); |
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if (WP_Filesystem($credentials, $directory)) { |
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|
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global $wp_filesystem; |
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$path = $entity_directories[$entity].'/.updraftcentral'; |
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|
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if (!$wp_filesystem->put_contents($path, '', 0644)) { |
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$result = array('error' => true, 'message' => 'failed_credentials', 'values' => array()); |
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} else { |
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$wp_filesystem->delete($path); |
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$result = array('error' => false, 'message' => 'credentials_ok', 'values' => array()); |
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} |
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|
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} else { |
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$result = array('error' => true, 'message' => 'failed_credentials', 'values' => array()); |
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} |
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|
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} catch (Exception $e) { |
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$result = array('error' => true, 'message' => $e->getMessage(), 'values' => array()); |
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} |
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|
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return $this->_response($result); |
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} |
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|
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/** |
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* Gets the FileSystem Credentials |
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* |
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* Extract the needed filesystem credentials (permissions) to be used |
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* to update/upgrade the plugins, themes and the WP core. |
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* |
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* @return array $result - An array containing the creds form and some flags |
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* to determine whether we need to extract the creds |
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* manually from the user. |
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*/ |
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public function get_credentials() { |
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|
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try { |
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|
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// Check whether user has enough permission to update entities |
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if (!current_user_can('update_plugins') && !current_user_can('update_themes') && !current_user_can('update_core')) return $this->_generic_error_response('updates_permission_denied'); |
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|
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// Include the needed WP Core file(s) |
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$this->_admin_include('file.php', 'template.php'); |
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|
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// A container that will hold the state (in this case, either true or false) of |
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// each directory entities (plugins, themes, core) that will be used to determine |
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// whether or not there's a need to show a form that will ask the user for their credentials |
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// manually. |
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$request_filesystem_credentials = array(); |
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|
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// A container for the filesystem credentials form if applicable. |
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$filesystem_form = ''; |
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|
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// Directory entities that we currently need permissions |
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// to update. |
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$check_fs = array( |
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'plugins' => WP_PLUGIN_DIR, |
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'themes' => WP_CONTENT_DIR.'/themes', |
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'core' => untrailingslashit(ABSPATH) |
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); |
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|
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// Here, we're looping through each entities and find output whether |
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// we have sufficient permissions to update objects belonging to them. |
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foreach ($check_fs as $entity => $dir) { |
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|
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// We're determining which method to use when updating |
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// the files in the filesystem. |
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$filesystem_method = get_filesystem_method(array(), $dir); |
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|
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// Buffering the output to pull the actual credentials form |
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// currently being used by this WP instance if no sufficient permissions |
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// is found. |
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$url = wp_nonce_url(site_url()); |
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|
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ob_start(); |
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$filesystem_credentials_are_stored = request_filesystem_credentials($url, $filesystem_method); |
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$form = strip_tags(ob_get_contents(), '<div><h2><p><input><label><fieldset><legend><span><em>'); |
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|
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if (!empty($form)) { |
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$filesystem_form = $form; |
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} |
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ob_end_clean(); |
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|
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// Save the state whether or not there's a need to show the |
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// credentials form to the user. |
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$request_filesystem_credentials[$entity] = ('direct' !== $filesystem_method && !$filesystem_credentials_are_stored); |
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} |
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|
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// Wrapping the credentials info before passing it back |
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// to the client issuing the request. |
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$result = array( |
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'request_filesystem_credentials' => $request_filesystem_credentials, |
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'filesystem_form' => $filesystem_form |
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); |
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|
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} catch (Exception $e) { |
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$result = array('error' => true, 'message' => $e->getMessage(), 'values' => array()); |
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} |
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|
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return $this->_response($result); |
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} |
| 240 |
|
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/** |
| 242 |
* Fetches a browser-usable URL which will automatically log the user in to the site |
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* |
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* @param String $redirect_to - the URL to got to after logging in |
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* @param Array $extra_info - valid keys are user_id, which should be a numeric user ID to log in as. |
| 246 |
*/ |
| 247 |
public function get_login_url($redirect_to, $extra_info) { |
| 248 |
if (is_array($extra_info) && !empty($extra_info['user_id']) && is_numeric($extra_info['user_id'])) { |
| 249 |
|
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$user_id = $extra_info['user_id']; |
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|
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if (false == ($login_key = $this->_get_autologin_key($user_id))) return $this->_generic_error_response('user_key_failure'); |
| 253 |
|
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// Default value |
| 255 |
$redirect_url = network_admin_url(); |
| 256 |
if (is_array($redirect_to) && !empty($redirect_to['module'])) { |
| 257 |
switch ($redirect_to['module']) { |
| 258 |
case 'updraftplus': |
| 259 |
if ('initiate_restore' == $redirect_to['action'] && class_exists('UpdraftPlus_Options')) { |
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$redirect_url = UpdraftPlus_Options::admin_page_url().'?page=updraftplus&udaction=initiate_restore&entities='.urlencode($redirect_to['data']['entities']).'&showdata='.urlencode($redirect_to['data']['showdata']).'&backup_timestamp='.(int) $redirect_to['data']['backup_timestamp']; |
| 261 |
} elseif ('download_file' == $redirect_to['action']) { |
| 262 |
$findex = empty($redirect_to['data']['findex']) ? 0 : (int) $redirect_to['data']['findex']; |
| 263 |
// e.g. ?udcentral_action=dl&action=updraftplus_spool_file&backup_timestamp=1455101696&findex=0&what=plugins |
| 264 |
$redirect_url = site_url().'?udcentral_action=spool_file&action=updraftplus_spool_file&findex='.$findex.'&what='.urlencode($redirect_to['data']['what']).'&backup_timestamp='.(int) $redirect_to['data']['backup_timestamp']; |
| 265 |
} |
| 266 |
break; |
| 267 |
case 'direct_url': |
| 268 |
$redirect_url = $redirect_to['url']; |
| 269 |
break; |
| 270 |
} |
| 271 |
} |
| 272 |
|
| 273 |
$login_key = apply_filters('updraftplus_remotecontrol_login_key', array( |
| 274 |
'key' => $login_key, |
| 275 |
'created' => time(), |
| 276 |
'redirect_url' => $redirect_url |
| 277 |
), $redirect_to, $extra_info); |
| 278 |
|
| 279 |
// Over-write any previous value - only one can be valid at a time) |
| 280 |
update_user_meta($user_id, 'updraftcentral_login_key', $login_key); |
| 281 |
|
| 282 |
return $this->_response(array( |
| 283 |
'login_url' => network_site_url('?udcentral_action=login&login_id='.$user_id.'&login_key='.$login_key['key']) |
| 284 |
)); |
| 285 |
|
| 286 |
} else { |
| 287 |
return $this->_generic_error_response('user_unknown'); |
| 288 |
} |
| 289 |
} |
| 290 |
|
| 291 |
/** |
| 292 |
* Get information derived from phpinfo() |
| 293 |
* |
| 294 |
* @return Array |
| 295 |
*/ |
| 296 |
public function phpinfo() { |
| 297 |
$phpinfo = $this->_get_phpinfo_array(); |
| 298 |
|
| 299 |
if (!empty($phpinfo)) { |
| 300 |
return $this->_response($phpinfo); |
| 301 |
} |
| 302 |
|
| 303 |
return $this->_generic_error_response('phpinfo_fail'); |
| 304 |
} |
| 305 |
|
| 306 |
/** |
| 307 |
* The key obtained is only intended to be short-lived. Hence, there's no intention other than that it is random and only used once - only the most recent one is valid. |
| 308 |
* |
| 309 |
* @param Integer $user_id Specific user ID to get the autologin key |
| 310 |
* @return Array |
| 311 |
*/ |
| 312 |
public function _get_autologin_key($user_id) { |
| 313 |
$secure_auth_key = defined('SECURE_AUTH_KEY') ? SECURE_AUTH_KEY : hash('sha256', DB_PASSWORD).'_'.rand(0, 999999999); |
| 314 |
if (!defined('SECURE_AUTH_KEY')) return false; |
| 315 |
$hash_it = $user_id.'_'.microtime(true).'_'.rand(0, 999999999).'_'.$secure_auth_key; |
| 316 |
$hash = hash('sha256', $hash_it); |
| 317 |
return $hash; |
| 318 |
} |
| 319 |
|
| 320 |
public function site_info() { |
| 321 |
|
| 322 |
global $wpdb; |
| 323 |
@include(ABSPATH.WPINC.'/version.php'); |
| 324 |
|
| 325 |
$ud_version = is_a($this->ud, 'UpdraftPlus') ? $this->ud->version : 'none'; |
| 326 |
|
| 327 |
return $this->_response(array( |
| 328 |
'versions' => array( |
| 329 |
'ud' => $ud_version, |
| 330 |
'php' => PHP_VERSION, |
| 331 |
'wp' => $wp_version, |
| 332 |
'mysql' => $wpdb->db_version(), |
| 333 |
'udrpc_php' => $this->rc->udrpc_version, |
| 334 |
), |
| 335 |
'bloginfo' => array( |
| 336 |
'url' => network_site_url(), |
| 337 |
'name' => get_bloginfo('name'), |
| 338 |
) |
| 339 |
)); |
| 340 |
} |
| 341 |
|
| 342 |
/** |
| 343 |
* This calls the WP_Action within WP |
| 344 |
* |
| 345 |
* @param array $data Array of Data to be used within call_wp_action |
| 346 |
* @return array |
| 347 |
*/ |
| 348 |
public function call_wordpress_action($data) { |
| 349 |
if (false === ($updraftplus_admin = $this->_load_ud_admin())) return $this->_generic_error_response('no_updraftplus'); |
| 350 |
|
| 351 |
$response = $updraftplus_admin->call_wp_action($data); |
| 352 |
|
| 353 |
if (empty($data["wpaction"])) { |
| 354 |
return $this->_generic_error_response("error", "no command sent"); |
| 355 |
} |
| 356 |
|
| 357 |
return $this->_response(array( |
| 358 |
"response" => $response['response'], |
| 359 |
"status" => $response['status'], |
| 360 |
"log" => $response['log'] |
| 361 |
)); |
| 362 |
} |
| 363 |
|
| 364 |
/** |
| 365 |
* Get disk space used |
| 366 |
* |
| 367 |
* @uses UpdraftPlus_Filesystem_Functions::get_disk_space_used() |
| 368 |
* |
| 369 |
* @param String $entity - the entity to count (e.g. 'plugins', 'themes') |
| 370 |
* |
| 371 |
* @return Array - response |
| 372 |
*/ |
| 373 |
public function count($entity) { |
| 374 |
|
| 375 |
if (!class_exists('UpdraftPlus_Filesystem_Functions')) return $this->_generic_error_response('no_updraftplus'); |
| 376 |
|
| 377 |
$response = UpdraftPlus_Filesystem_Functions::get_disk_space_used($entity); |
| 378 |
|
| 379 |
return $this->_response($response); |
| 380 |
} |
| 381 |
|
| 382 |
/** |
| 383 |
* https://secure.php.net/phpinfo |
| 384 |
* |
| 385 |
* @return null|array |
| 386 |
*/ |
| 387 |
private function _get_phpinfo_array() { |
| 388 |
ob_start(); |
| 389 |
phpinfo(INFO_GENERAL|INFO_CREDITS|INFO_MODULES); |
| 390 |
$phpinfo = array('phpinfo' => array()); |
| 391 |
|
| 392 |
if (preg_match_all('#(?:<h2>(?:<a name=".*?">)?(.*?)(?:</a>)?</h2>)|(?:<tr(?: class=".*?")?><t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>)?)?</tr>)#s', ob_get_clean(), $matches, PREG_SET_ORDER)) { |
| 393 |
foreach ($matches as $match) { |
| 394 |
if (strlen($match[1])) { |
| 395 |
$phpinfo[$match[1]] = array(); |
| 396 |
} elseif (isset($match[3])) { |
| 397 |
$keys1 = array_keys($phpinfo); |
| 398 |
$phpinfo[end($keys1)][$match[2]] = isset($match[4]) ? array($match[3], $match[4]) : $match[3]; |
| 399 |
} else { |
| 400 |
$keys1 = array_keys($phpinfo); |
| 401 |
$phpinfo[end($keys1)][] = $match[2]; |
| 402 |
|
| 403 |
} |
| 404 |
|
| 405 |
} |
| 406 |
return $phpinfo; |
| 407 |
} |
| 408 |
return false; |
| 409 |
} |
| 410 |
|
| 411 |
/** |
| 412 |
* Return an UpdraftPlus_Admin object |
| 413 |
* |
| 414 |
* @return UpdraftPlus_Admin|Boolean - false in case of failure |
| 415 |
*/ |
| 416 |
private function _load_ud_admin() { |
| 417 |
if (!defined('UPDRAFTPLUS_DIR') || !is_file(UPDRAFTPLUS_DIR.'/admin.php')) return false; |
| 418 |
include_once(UPDRAFTPLUS_DIR.'/admin.php'); |
| 419 |
global $updraftplus_admin; |
| 420 |
return $updraftplus_admin; |
| 421 |
} |
| 422 |
} |
| 423 |
|
