File: /home/mirz4654/.trash/debug-log-manager/classes/class-wp-config-transformer.php
<?php
namespace DLM\Classes;
use Exception;
/**
* Class with methods to manipulate wp-config.php
*
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
class WP_Config_Transformer {
/**
* The wp-config.php source file
*
* @since 1.0.0
* @access private
* @var string $version The current version of this plugin.
*/
private $wp_config_src;
/**
* The configs defined in wp-config.php
*
* @since 1.0.0
* @access private
* @var string $version The current version of this plugin.
*/
private $wp_configs;
/**
* Get wp-config.php file path
*
* @since 1.0.0
*/
public function wpconfig_file( $type = 'path' ) {
// From wp-load.php
if ( file_exists( ABSPATH . 'wp-config.php' ) ) {
/** The config file resides in ABSPATH */
$file = ABSPATH . 'wp-config.php';
$location = 'WordPress root directory';
} elseif ( @file_exists( dirname( ABSPATH ) . '/wp-config.php' ) && ! @file_exists( dirname( ABSPATH ) . '/wp-settings.php' ) ) {
/** The config file resides one level above ABSPATH but is not part of another installation */
$file = dirname( ABSPATH ) . '/wp-config.php';
$location = 'parent directory of WordPress root';
} else {
$file = 'Undetectable.';
$location = 'not in WordPress root or it\'s parent directory';
}
if ( !is_writable( $file ) ) {
$writeability = 'not writeable';
} else {
$writeability = 'writeable';
}
if ( $type == 'path' ) {
return $file;
} elseif ( $type == 'location' ) {
return $location;
} elseif ( $type == 'writeability' ) {
return $writeability;
} elseif ( $type == 'status' ) {
return '<div class="dlm-wpconfig-status" style="display: none;">The wp-config.php file is located in ' . $location . ' ('. $file . ') and is ' . $writeability .'.</div>';
}
}
/**
* Get configs in wp-config.php
*
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function configs( $return_type = 'raw' ) {
$src = file_get_contents( $this->wpconfig_file( 'path' ) );
$configs = array();
$configs['constant'] = array();
$configs['variable'] = array();
// Strip comments.
foreach ( token_get_all( $src ) as $token ) {
if ( in_array( $token[0], array( T_COMMENT, T_DOC_COMMENT ), true ) ) {
$src = str_replace( $token[1], '', $src );
}
}
preg_match_all( '/(?<=^|;|<\?php\s|<\?\s)(\h*define\s*\(\s*[\'"](\w*?)[\'"]\s*)(,\s*(\'\'|""|\'.*?[^\\\\]\'|".*?[^\\\\]"|.*?)\s*)((?:,\s*(?:true|false)\s*)?\)\s*;)/ims', $src, $constants );
preg_match_all( '/(?<=^|;|<\?php\s|<\?\s)(\h*\$(\w+)\s*=)(\s*(\'\'|""|\'.*?[^\\\\]\'|".*?[^\\\\]"|.*?)\s*;)/ims', $src, $variables );
if ( ! empty( $constants[0] ) && ! empty( $constants[1] ) && ! empty( $constants[2] ) && ! empty( $constants[3] ) && ! empty( $constants[4] ) && ! empty( $constants[5] ) ) {
foreach ( $constants[2] as $index => $name ) {
$configs['constant'][ $name ] = array(
'src' => $constants[0][ $index ],
'value' => $constants[4][ $index ],
'parts' => array(
$constants[1][ $index ],
$constants[3][ $index ],
$constants[5][ $index ],
),
);
}
}
if ( ! empty( $variables[0] ) && ! empty( $variables[1] ) && ! empty( $variables[2] ) && ! empty( $variables[3] ) && ! empty( $variables[4] ) ) {
// Remove duplicate(s), last definition wins.
$variables[2] = array_reverse( array_unique( array_reverse( $variables[2], true ) ), true );
foreach ( $variables[2] as $index => $name ) {
$configs['variable'][ $name ] = array(
'src' => $variables[0][ $index ],
'value' => $variables[4][ $index ],
'parts' => array(
$variables[1][ $index ],
$variables[3][ $index ],
),
);
}
}
$this->wp_configs = $configs;
if ( $return_type == 'raw' ) {
return $configs;
} elseif ( $return_type == 'print_r' ) {
return '<pre>' . print_r( $configs, true ) . '</pre>';
}
}
/**
* Checks if a config exists in the wp-config.php file.
*
* @throws Exception If the wp-config.php file is empty.
* @throws Exception If the requested config type is invalid.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
*
* @return bool
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function exists( $type, $name ) {
$wp_config_src = file_get_contents( $this->wpconfig_file( 'path' ) );
if ( ! trim( $wp_config_src ) ) {
throw new Exception( 'Config file is empty.' );
}
// Normalize the newline to prevent an issue coming from OSX.
$this->wp_config_src = str_replace( array( "\n\r", "\r" ), "\n", $wp_config_src );
$this->wp_configs = $this->configs( 'raw' );
if ( ! isset( $this->wp_configs[ $type ] ) ) {
throw new Exception( esc_html( "Config type '{$type}' does not exist." ) );
}
return isset( $this->wp_configs[ $type ][ $name ] );
}
/**
* Get the value of a config in the wp-config.php file.
*
* @throws Exception If the wp-config.php file is empty.
* @throws Exception If the requested config type is invalid.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
*
* @return array
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function get_value( $type, $name ) {
$wp_config_src = file_get_contents( $this->wpconfig_file( 'path' ) );
if ( ! trim( $wp_config_src ) ) {
throw new Exception( 'Config file is empty.' );
}
$this->wp_config_src = $wp_config_src;
$this->wp_configs = $this->configs( 'raw' );
if ( ! isset( $this->wp_configs[ $type ] ) ) {
throw new Exception( esc_html( "Config type '{$type}' does not exist." ) );
}
return $this->wp_configs[ $type ][ $name ]['value'];
}
/**
* Adds a config to the wp-config.php file.
*
* @throws Exception If the config value provided is not a string.
* @throws Exception If the config placement anchor could not be located.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
* @param string $value Config value.
* @param array $options (optional) Array of special behavior options.
*
* @return bool
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function add( $type, $name, $value, array $options = array() ) {
if ( ! is_string( $value ) ) {
throw new Exception( 'Config value must be a string.' );
}
if ( $this->exists( $type, $name ) ) {
return false;
}
if ( in_array( $value, array( 'true', 'false' ), true ) ) {
$raw_input = true;
} else {
$raw_input = false;
}
$wp_config_src = file_get_contents( $this->wpconfig_file( 'path' ) );
if ( false !== strpos( $wp_config_src, "Happy publishing" ) ) {
$anchor = "/* That's all, stop editing! Happy publishing. */";
} elseif ( false !== strpos( $wp_config_src, "Happy blogging" ) ) {
$anchor = "/* That's all, stop editing! Happy blogging. */";
} else {}
$defaults = array(
'raw' => $raw_input, // Display value in raw format without quotes.
'anchor' => $anchor, // Config placement anchor string.
'separator' => PHP_EOL, // Separator between config definition and anchor string.
'placement' => 'before', // Config placement direction (insert before or after).
);
// list( $raw, $anchor, $separator, $placement ) = array_values( $options );
list( $raw, $anchor, $separator, $placement ) = array_values( array_merge( $defaults, $options ) );;
$raw = (bool) $raw;
$anchor = (string) $anchor;
$separator = (string) $separator;
$placement = (string) $placement;
if ( 'EOF' === $anchor ) {
$contents = $this->wp_config_src . $this->normalize( $type, $name, $this->format_value( $value, $raw ) );
} else {
if ( false === strpos( $this->wp_config_src, $anchor ) ) {
throw new Exception( 'Unable to locate placement anchor.' );
}
$new_src = $this->normalize( $type, $name, $this->format_value( $value, $raw ) );
$new_src = ( 'after' === $placement ) ? $anchor . $separator . $new_src : $new_src . $separator . $anchor;
$contents = str_replace( $anchor, $new_src, $this->wp_config_src );
}
return $this->save( $contents );
}
/**
* Updates an existing config in the wp-config.php file.
*
* @throws Exception If the config value provided is not a string.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
* @param string $value Config value.
* @param array $options (optional) Array of special behavior options.
*
* @return bool
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function update( $type, $name, $value, array $options = array() ) {
if ( ! is_string( $value ) ) {
throw new Exception( 'Config value must be a string.' );
}
// $defaults = array(
// 'add' => true, // Add the config if missing.
// 'raw' => false, // Display value in raw format without quotes.
// 'normalize' => false, // Normalize config output using WP Coding Standards.
// );
// list( $add, $raw, $normalize ) = array_values( array_merge( $defaults, $options ) );
list( $add, $raw, $normalize ) = array_values( $options );
$add = (bool) $add;
$raw = (bool) $raw;
$normalize = (bool) $normalize;
if ( ! $this->exists( $type, $name ) ) {
return ( $add ) ? $this->add( $type, $name, $value ) : false;
}
$old_src = $this->wp_configs[ $type ][ $name ]['src'];
$old_value = $this->wp_configs[ $type ][ $name ]['value'];
$new_value = $this->format_value( $value, $raw );
if ( $normalize ) {
$new_src = $this->normalize( $type, $name, $new_value );
} else {
$new_parts = $this->wp_configs[ $type ][ $name ]['parts'];
$new_parts[1] = str_replace( $old_value, $new_value, $new_parts[1] ); // Only edit the value part.
$new_src = implode( '', $new_parts );
}
$contents = preg_replace(
sprintf( '/(?<=^|;|<\?php\s|<\?\s)(\s*?)%s/m', preg_quote( trim( $old_src ), '/' ) ),
'$1' . str_replace( '$', '\$', trim( $new_src ) ),
$this->wp_config_src
);
return $this->save( $contents );
}
/**
* Removes a config from the wp-config.php file.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
*
* @return bool
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function remove( $type, $name ) {
if ( ! $this->exists( $type, $name ) ) {
return false;
}
$wp_config_src = file_get_contents( $this->wpconfig_file( 'path' ) );
$this->wp_config_src = str_replace( array( "\n\r", "\r" ), "\n", $wp_config_src );
$this->wp_configs = $this->configs( 'raw' );
$pattern = sprintf( '/(?<=^|;|<\?php\s|<\?\s)%s\s*(\S|$)/m', preg_quote( $this->wp_configs[$type][$name]['src'], '/' ) );
$contents = preg_replace( $pattern, '$1', $this->wp_config_src );
return $this->save( $contents );
}
/**
* Applies formatting to a config value.
*
* @throws Exception When a raw value is requested for an empty string.
*
* @param string $value Config value.
* @param bool $raw Display value in raw format without quotes.
*
* @return mixed
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function format_value( $value, $raw ) {
if ( $raw && '' === trim( $value ) ) {
throw new Exception( 'Raw value for empty string not supported.' );
}
return ( $raw ) ? $value : var_export( $value, true );
}
/**
* Normalizes the source output for a name/value pair.
*
* @throws Exception If the requested config type does not support normalization.
*
* @param string $type Config type (constant or variable).
* @param string $name Config name.
* @param mixed $value Config value.
*
* @return string
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function normalize( $type, $name, $value ) {
if ( 'constant' === $type ) {
$placeholder = "define( '%s', %s );";
} elseif ( 'variable' === $type ) {
$placeholder = '$%s = %s;';
} else {
throw new Exception( esc_html( "Unable to normalize config type '{$type}'." ) );
}
return sprintf( $placeholder, $name, $value );
}
/**
* Saves new contents to the wp-config.php file.
*
* @throws Exception If the config file content provided is empty.
* @throws Exception If there is a failure when saving the wp-config.php file.
*
* @param string $contents New config contents.
*
* @return bool
* @since 1.0.0
* @link https://plugins.svn.wordpress.org/debug-log-config-tool/tags/1.1/src/Classes/vendor/WPConfigTransformer.php
*/
public function save( $contents ) {
if ( ! trim( $contents ) ) {
throw new Exception( 'Cannot save the config file with empty contents.' );
}
if ( $contents === $this->wp_config_src ) {
return false;
}
$result = file_put_contents( $this->wpconfig_file( 'path' ), $contents, LOCK_EX );
if ( false === $result ) {
throw new Exception( 'Failed to update the config file.' );
}
return true;
}
}