| 1 |
<?php |
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/** |
| 3 |
* Abstract class used for handling audit events in the WP_Defender plugin. |
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* |
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* @package WP_Defender\Component\Audit |
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*/ |
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|
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namespace WP_Defender\Component\Audit; |
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|
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use Countable; |
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use ReflectionMethod; |
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use ReflectionException; |
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use WP_Defender\Component; |
| 14 |
use WP_Defender\Traits\IP; |
| 15 |
use WP_Defender\Traits\User; |
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use Calotes\Helper\Array_Cache; |
| 17 |
use WP_Defender\Model\Setting\Audit_Logging; |
| 18 |
|
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/** |
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* Base class for all audit events. |
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*/ |
| 22 |
abstract class Audit_Event extends Component { |
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|
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use User; |
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use IP; |
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|
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public const ACTION_DELETED = 'deleted', ACTION_TRASHED = 'trashed', ACTION_RESTORED = 'restored', ACTION_UPDATED = 'updated'; |
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|
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/** |
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* Return an array of hooks. |
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* |
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* @return mixed |
| 33 |
*/ |
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abstract public function get_hooks(); |
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|
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/** |
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* Loop through the arguments array and process each argument based on its type. |
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* |
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* @param array $args The array of arguments to process. |
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* @param array $params The parameters array to update with processed arguments. |
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* @param mixed $leftover Additional leftover parameter. |
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*/ |
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private static function get_custom_args( $args, &$params, &$leftover ) { |
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foreach ( $args as $key => $arg ) { |
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if ( is_string( $arg ) && preg_match( '/{{.*}}/', $arg ) ) { |
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$search = str_replace( array( '{{', '}}' ), '', $arg ); |
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$found = self::recursive_look_array( $params, $search ); |
| 48 |
if ( false !== $found ) { |
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$params[ $key ] = $found; |
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} |
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} else { |
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$params[ $key ] = $arg; |
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} |
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} |
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} |
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|
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/** |
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* Loop through the arguments array and process each argument based on its type. |
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* |
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* @param mixed $args The array of arguments to process. |
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* @param array $params The parameters array to update with processed arguments. |
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* @param mixed $leftover Additional leftover parameter. |
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* |
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* @throws ReflectionException If the class or method does not exist. |
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*/ |
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private static function get_program_args( $args, &$params, &$leftover ) { |
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foreach ( $args as $key => $arg ) { |
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// Loop through each. |
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$func_args = array(); |
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if ( isset( $arg['params'] ) && is_array( $arg['params'] ) ) { |
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foreach ( $arg['params'] as $value ) { |
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if ( is_string( $value ) && preg_match( '/{{.*}}/', $value ) ) { |
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$search = str_replace( array( '{{', '}}' ), '', $value ); |
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$found = self::recursive_look_array( $params, $search ); |
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if ( false !== $found ) { |
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$func_args[] = $found; |
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} |
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} else { |
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$func_args[] = $value; |
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} |
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} |
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} |
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// Call the function. |
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if ( ! is_array( $arg['callable'] ) ) { |
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$ret = call_user_func_array( $arg['callable'], $func_args ); |
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} else { |
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$reflection_method = new ReflectionMethod( $arg['callable'][0], $arg['callable'][1] ); |
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$ret = $reflection_method->invokeArgs( new $arg['callable'][0](), $func_args ); |
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} |
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if ( isset( $arg['result_property'] ) ) { |
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$ret = self::recursive_look( $ret, explode( '->', $arg['result_property'] ) ); |
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} |
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|
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$params[ $key ] = $ret; |
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} |
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} |
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|
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/** |
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* Recursively looks up a value within a nested array or object based on provided links. |
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* |
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* This method takes an object or an array and an array of links. It iterates over the links |
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* and uses each link to access a nested property or array element of the $obj. For example, |
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* if the $obj is an array ['a' => ['b' => 'c']], and the links are ['a', 'b'], the method will |
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* return 'c'. If the link does not exist in the object or array, the method will return false. |
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* |
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* @param mixed $obj The object or array to access nested properties or array elements. |
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* @param array $links The array of links to access nested properties or array elements of the $obj. |
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* |
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* @return mixed The final value of $obj if the iteration is successful, false otherwise. |
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*/ |
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private static function recursive_look( $obj, array $links ) { |
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// We will iterate over the links and use each link to access a nested property or array element of the $obj. |
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foreach ( $links as $link ) { |
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if ( is_array( $obj ) && array_key_exists( $link, $obj ) ) { |
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$obj = $obj[ $link ]; |
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} elseif ( is_object( $obj ) && isset( $obj->$link ) ) { |
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$obj = $obj->$link; |
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} else { |
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return false; |
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} |
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} |
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// If the iteration is successful, we return the final value of $obj. |
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return $obj; |
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} |
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|
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/** |
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* Performs a recursive lookup in an array based on a given set of links. |
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* |
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* @param array $data The array to perform the lookup on. |
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* @param string $links The links to follow in the array, separated by '->'. |
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* |
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* @return mixed The value found at the end of the links, or null if not found. |
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*/ |
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private static function recursive_look_array( $data, $links ) { |
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$links_array = explode( '->', $links ); |
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|
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// Check if the first link exists and is valid. |
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if ( empty( $links_array ) || ! isset( $data[ $links_array[0] ] ) ) { |
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return false; |
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} |
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|
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// If the first link exists and is valid, retrieve the value of the first link from the data array. |
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$obj = $data[ $links_array[0] ]; |
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|
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// If there are more links to process, pass them to recursive_look. |
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if ( count( $links_array ) > 1 ) { |
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// Pass the remaining links starting from index 1 to the recursive_look method. |
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$remaining_links = array_slice( $links_array, 1 ); |
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$obj = self::recursive_look( $obj, $remaining_links ); |
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} |
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|
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// Finally, return the final value found at the end of the links. |
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return $obj; |
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} |
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|
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/** |
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* This is a private method that is used to get the text based on the provided parameters. |
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* In many case, text can be condition, example an array contain text 1, text 2, text 3, |
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* if 2 matched, we get the first. |
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* |
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* @param mixed $text The text to be processed. It can be either a string or an array. |
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* @param array $params The parameters used to replace placeholders in the text. |
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* |
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* @return mixed The processed text or false if no match is found. |
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*/ |
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private function get_text( $text, $params ) { |
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if ( ! is_array( $text ) ) { |
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return $text; |
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} |
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|
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$matched = array(); |
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foreach ( $text as $row ) { |
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$t = $row[0]; |
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// This will be inside parameters. |
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$value_placeholder = str_replace( array( '{{', '}}' ), '', $row[1] ); |
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// No need to validate here, all should be passed by hardcode. |
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$value = self::recursive_look_array( $params, $value_placeholder ); |
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|
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$compare = $row[2]; |
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if ( is_string( $compare ) && preg_match( '/{{.*}}/', $compare ) ) { |
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$search = str_replace( array( '{{', '}}' ), '', $compare ); |
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$compare = self::recursive_look_array( $params, $search ); |
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} |
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|
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$comparison = $row[3] ?? '=='; |
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|
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if ( is_array( $value ) && is_array( $compare ) ) { |
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// Compare 2 arrays. |
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$map = array( |
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'==' => count( self::array_recursive_diff( $value, $compare ) ) === 0, |
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'!=' => count( self::array_recursive_diff( $value, $compare ) ) !== 0, |
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); |
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} elseif ( is_array( $compare ) ) { |
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// In or not in array. |
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$map = array( |
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'in' => in_array( $value, $compare, true ), |
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'not_in' => in_array( $value, $compare, true ) === false, |
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); |
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} else { |
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$map = array( |
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'===' => $value === $compare, |
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'!==' => $value !== $compare, |
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'>' => $value > $compare, |
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'>=' => $value >= $compare, |
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'<' => $value < $compare, |
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'<=' => $value <= $compare, |
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'==' => $value === $compare, |
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'!=' => $value !== $compare, |
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); |
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} |
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|
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if ( $map[ $comparison ] ) { |
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$matched[] = $t; |
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} |
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} |
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|
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return array_shift( $matched ); |
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} |
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|
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/** |
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* Recursively finds the difference between two arrays. |
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* |
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* @param array $array1 The first array to compare. |
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* @param array $array2 The second array to compare against. |
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* |
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* @return array Difference between the two arrays. |
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*/ |
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protected static function array_recursive_diff( $array1, $array2 ): array { |
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$result = array(); |
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|
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foreach ( $array1 as $key => $value ) { |
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if ( array_key_exists( $key, $array2 ) ) { |
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if ( is_array( $value ) ) { |
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$recursive_diff = self::array_recursive_diff( $value, $array2[ $key ] ); |
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if ( count( $recursive_diff ) ) { |
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$result[ $key ] = $recursive_diff; |
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} |
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} elseif ( $value !== $array2[ $key ] ) { |
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$result[ $key ] = $value; |
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} |
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} else { |
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$result[ $key ] = $value; |
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} |
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} |
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|
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return $result; |
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} |
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|
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/** |
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* Check conditions against parameters and return a boolean result. |
| 251 |
* |
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* @param mixed $conditions The conditions to check against. |
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* @param array $params The parameters to use for comparison. |
| 254 |
* |
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* @return bool The boolean result of the condition check. |
| 256 |
*/ |
| 257 |
private static function check_condition( $conditions, $params ): bool { |
| 258 |
$good = true; |
| 259 |
foreach ( $conditions as $condition ) { |
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$links = $condition[0]; |
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$value = self::recursive_look_array( $params, str_replace( array( '{{', '}}' ), '', $links ) ); |
| 262 |
$compare = $condition[1]; |
| 263 |
if ( is_string( $compare ) && preg_match( '/{{.*}}/', $compare ) ) { |
| 264 |
$search = str_replace( array( '{{', '}}' ), '', $compare ); |
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$compare = self::recursive_look_array( $params, $search ); |
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} |
| 267 |
|
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if ( is_array( $compare ) && in_array( $value, $compare, true ) ) { |
| 269 |
$good = false; |
| 270 |
} elseif ( $value === $compare ) { |
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$good = false; |
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} |
| 273 |
} |
| 274 |
|
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return $good; |
| 276 |
} |
| 277 |
|
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/** |
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* Build log data based on the provided hook data and parameters. |
| 280 |
* |
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* @return mixed Returns false if the log data cannot be built, otherwise an array of log data. |
| 282 |
* @throws ReflectionException If the class or method does not exist. |
| 283 |
*/ |
| 284 |
public function build_log_data() { |
| 285 |
$args = func_get_args(); |
| 286 |
$hook_name = $args[0]; |
| 287 |
$params = $args[1]; |
| 288 |
$user_id = get_current_user_id(); |
| 289 |
$hook_data = $args[2]; |
| 290 |
// Have to build iup params first. |
| 291 |
if ( ( is_array( $hook_data['args'] ) || $hook_data['args'] instanceof Countable ? count( $hook_data['args'] ) : 0 ) !== ( is_array( $params ) || $params instanceof Countable ? count( $params ) : 0 ) ) { |
| 292 |
return false; |
| 293 |
} elseif ( empty( $hook_data['args'] ) && empty( $params ) ) { |
| 294 |
$params = array(); |
| 295 |
} else { |
| 296 |
$params = array_combine( $hook_data['args'], $params ); |
| 297 |
} |
| 298 |
|
| 299 |
if ( isset( $hook_data['callback'] ) && ! empty( $hook_data['callback'] ) ) { |
| 300 |
// Custom callback provided, call it. |
| 301 |
$reflection_method = new ReflectionMethod( $hook_data['callback'][0], $hook_data['callback'][1] ); |
| 302 |
$ret = $reflection_method->invokeArgs( |
| 303 |
new $hook_data['callback'][0](), |
| 304 |
array( |
| 305 |
$hook_name, |
| 306 |
$params, |
| 307 |
) |
| 308 |
); |
| 309 |
|
| 310 |
if ( is_array( $ret ) && 2 === count( $ret ) ) { |
| 311 |
[ $text, $context ] = $ret; |
| 312 |
} elseif ( is_array( $ret ) && 3 === count( $ret ) ) { |
| 313 |
[ $text, $context, $action ] = $ret; |
| 314 |
} else { |
| 315 |
$text = false; |
| 316 |
} |
| 317 |
} else { |
| 318 |
/** |
| 319 |
* First we need to query all parameters, |
| 320 |
* we have to loop around custom args, program args to queries and maintain the params list, |
| 321 |
* then we will check the left over, till all done, |
| 322 |
* then we will build up the text. |
| 323 |
*/ |
| 324 |
$leftover = array(); |
| 325 |
if ( isset( $hook_data['custom_args'] ) ) { |
| 326 |
self::get_custom_args( $hook_data['custom_args'], $params, $leftover ); |
| 327 |
} |
| 328 |
|
| 329 |
if ( isset( $hook_data['program_args'] ) ) { |
| 330 |
self::get_program_args( $hook_data['program_args'], $params, $leftover ); |
| 331 |
} |
| 332 |
$params = array_merge( $this->get_default_params(), $params ); |
| 333 |
// Still need to check if this condition okay. |
| 334 |
if ( isset( $hook_data['false_when'] ) && self::check_condition( |
| 335 |
$hook_data['false_when'], |
| 336 |
$params |
| 337 |
) === false ) { |
| 338 |
return false; |
| 339 |
} |
| 340 |
// Now we got all params as key=>value, just build the text. |
| 341 |
$text = self::get_text( $hook_data['text'], $params ); |
| 342 |
|
| 343 |
if ( empty( $text ) ) { |
| 344 |
return false; |
| 345 |
} |
| 346 |
|
| 347 |
foreach ( $params as $key => $val ) { |
| 348 |
$replacer = $val; |
| 349 |
if ( is_array( $replacer ) || is_object( $replacer ) ) { |
| 350 |
continue; |
| 351 |
} |
| 352 |
$text = str_replace( '{{' . $key . '}}', $replacer, $text ); |
| 353 |
} |
| 354 |
|
| 355 |
$context = ''; |
| 356 |
if ( isset( $hook_data['context'] ) ) { |
| 357 |
if ( is_array( $hook_data['context'] ) && is_callable( $hook_data['context'] ) ) { |
| 358 |
$reflection_method = new ReflectionMethod( $hook_data['context'][0], $hook_data['context'][1] ); |
| 359 |
$context = $reflection_method->invokeArgs( |
| 360 |
new $hook_data['context'][0](), |
| 361 |
array( |
| 362 |
$hook_name, |
| 363 |
$params, |
| 364 |
) |
| 365 |
); |
| 366 |
} elseif ( preg_match( '/{{.*}}/', $hook_data['context'] ) ) { |
| 367 |
$context = self::recursive_look_array( |
| 368 |
$params, |
| 369 |
str_replace( |
| 370 |
array( |
| 371 |
'{{', |
| 372 |
'}}', |
| 373 |
), |
| 374 |
'', |
| 375 |
$hook_data['context'] |
| 376 |
) |
| 377 |
); |
| 378 |
} else { |
| 379 |
$context = $hook_data['context']; |
| 380 |
} |
| 381 |
} |
| 382 |
} |
| 383 |
|
| 384 |
$anonymous_override_list = array( |
| 385 |
'wp_login', |
| 386 |
'wp_logout', |
| 387 |
'retrieve_password', |
| 388 |
'after_password_reset', |
| 389 |
); |
| 390 |
if ( 0 === $user_id && in_array( $hook_name, $anonymous_override_list, true ) ) { |
| 391 |
// In this state, user id still 0, we have to get the id via hooks param. |
| 392 |
if ( isset( $params['user'] ) ) { |
| 393 |
$user = $params['user']; |
| 394 |
$user_id = $user->ID; |
| 395 |
} elseif ( isset( $params['user_id'] ) ) { |
| 396 |
$user_id = $params['user_id']; |
| 397 |
} else { |
| 398 |
// Incorrect data. Return. |
| 399 |
return false; |
| 400 |
} |
| 401 |
} |
| 402 |
|
| 403 |
// We don't get text. Return. |
| 404 |
if ( ! $text ) { |
| 405 |
return false; |
| 406 |
} |
| 407 |
|
| 408 |
// Build data. |
| 409 |
$settings = new Audit_Logging(); |
| 410 |
$time = time(); |
| 411 |
$event_type = $hook_data['event_type']; |
| 412 |
$action_type = $action ?? $hook_data['action_type']; |
| 413 |
$site_url = network_site_url(); |
| 414 |
$msg = wp_strip_all_tags( $text ); |
| 415 |
$blog_id = get_current_blog_id(); |
| 416 |
$ttl = strtotime( '+ ' . $settings->storage_days ); |
| 417 |
foreach ( $this->get_user_ip() as $ip ) { |
| 418 |
$post = array( |
| 419 |
'timestamp' => $time, |
| 420 |
'event_type' => $event_type, |
| 421 |
'action_type' => $action_type, |
| 422 |
'site_url' => $site_url, |
| 423 |
'user_id' => $user_id, |
| 424 |
'context' => $context, |
| 425 |
'ip' => $ip, |
| 426 |
'msg' => $msg, |
| 427 |
'blog_id' => $blog_id, |
| 428 |
'ttl' => $ttl, |
| 429 |
); |
| 430 |
Array_Cache::append( 'logs', $post, 'audit' ); |
| 431 |
} |
| 432 |
} |
| 433 |
|
| 434 |
/** |
| 435 |
* Retrieves default parameters for building log data. |
| 436 |
* |
| 437 |
* @return array default parameters. |
| 438 |
*/ |
| 439 |
private function get_default_params(): array { |
| 440 |
return array( |
| 441 |
'wp_user' => $this->get_source_of_action(), |
| 442 |
'wp_user_id' => get_current_user_id(), |
| 443 |
'blog_name' => is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : '', |
| 444 |
); |
| 445 |
} |
| 446 |
} |
| 447 |
|
