182 lines
5.2 KiB
PHP
182 lines
5.2 KiB
PHP
<?php
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function pressable_cache_extend()
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{
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}
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// http://www.php.net/is_writable
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function is_writeable_wp_config($path)
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{
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if ((defined('PHP_OS_FAMILY') && 'Windows' !== constant('PHP_OS_FAMILY')) || stristr(PHP_OS, 'DAR') || !stristr(PHP_OS, 'WIN'))
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{
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return is_writeable($path);
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}
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// PHP's is_writable does not work with Win32 NTFS
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if ($path[strlen($path) - 1] == '/')
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{ // recursively return a temporary file path
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return is_writeable_wp_config($path . uniqid(mt_rand()) . '.tmp');
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}
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elseif (is_dir($path))
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{
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return is_writeable_wp_config($path . '/' . uniqid(mt_rand()) . '.tmp');
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}
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// check tmp file for read/write capabilities
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$rm = file_exists($path);
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$f = @fopen($path, 'a');
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if ($f === false) return false;
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fclose($f);
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if (!$rm)
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{
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unlink($path);
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}
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return true;
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}
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// function wp_cache_setting( $field, $value ) {
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// global $wp_cache_config_file;
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// $GLOBALS[ $field ] = $value;
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// if ( is_numeric( $value ) ) {
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// return wp_config_file_replace_line( '^ *\$' . $field, "\$$field = $value;", $wp_cache_config_file );
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// } elseif ( is_bool( $value ) ) {
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// $output_value = $value === true ? 'true' : 'false';
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// return wp_config_file_replace_line( '^ *\$' . $field, "\$$field = $output_value;", $wp_cache_config_file );
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// } elseif ( is_object( $value ) || is_array( $value ) ) {
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// $text = var_export( $value, true );
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// $text = preg_replace( '/[\s]+/', ' ', $text );
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// return wp_config_file_replace_line( '^ *\$' . $field, "\$$field = $text;", $wp_cache_config_file );
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// } else {
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// return wp_config_file_replace_line( '^ *\$' . $field, "\$$field = '$value';", $wp_cache_config_file );
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// }
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// }
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function wp_config_file_replace_line($old, $new, $my_file)
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{
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if (@is_file($my_file) == false)
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{
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if (function_exists('set_transient'))
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{
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set_transient('wpsc_config_error', 'config_file_missing', 10);
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}
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return false;
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}
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if (!is_writeable_wp_config($my_file))
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{
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if (function_exists('set_transient'))
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{
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set_transient('wpsc_config_error', 'config_file_ro', 10);
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}
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trigger_error("Error: file $my_file is not writable.");
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return false;
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}
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$found = false;
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$loaded = false;
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$c = 0;
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$lines = array();
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while (!$loaded)
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{
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$lines = file($my_file);
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if (!empty($lines) && is_array($lines))
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{
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$loaded = true;
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}
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else
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{
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$c++;
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if ($c > 100)
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{
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if (function_exists('set_transient'))
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{
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set_transient('wpsc_config_error', 'config_file_not_loaded', 10);
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}
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trigger_error("wp_config_file_replace_line: Error - file $my_file could not be loaded.");
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return false;
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}
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}
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}
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foreach ((array)$lines as $line)
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{
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if (trim($new) != '' && trim($new) == trim($line))
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{
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pressable_cache_extend("wp_config_file_replace_line: setting not changed - $new");
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return true;
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}
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elseif (preg_match("/$old/", $line))
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{
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pressable_cache_extend("wp_config_file_replace_line: changing line " . trim($line) . " to *$new*");
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$found = true;
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}
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}
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global $cache_path;
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$tmp_config_filename = tempnam($GLOBALS['cache_path'], 'wpsc');
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rename($tmp_config_filename, $tmp_config_filename . ".php");
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$tmp_config_filename .= ".php";
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pressable_cache_extend('wp_config_file_replace_line: writing to ' . $tmp_config_filename);
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$fd = fopen($tmp_config_filename, 'w');
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if (!$fd)
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{
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if (function_exists('set_transient'))
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{
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set_transient('wpsc_config_error', 'config_file_ro', 10);
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}
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trigger_error("wp_config_file_replace_line: Error - could not write to $my_file");
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return false;
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}
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if ($found)
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{
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foreach ((array)$lines as $line)
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{
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if (!preg_match("/$old/", $line))
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{
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fputs($fd, $line);
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}
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elseif ($new != '')
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{
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fputs($fd, "$new\n");
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}
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}
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}
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else
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{
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$done = false;
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foreach ((array)$lines as $line)
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{
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// if ( $done || ! preg_match( '/\brequire_once\b/i', $line ) ) {
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if ($done || !preg_match('/\b(require_once)\b/', $line))
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{
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fputs($fd, $line);
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}
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else
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{
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//add fputs($fd, "$new\n"); here to write function above require_once
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fputs($fd, $line);
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//Write function at the button of require_once
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fputs($fd, "$new\n");
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$done = true;
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}
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}
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}
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fclose($fd);
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rename($tmp_config_filename, $my_file);
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pressable_cache_extend('wp_config_file_replace_line: moved ' . $tmp_config_filename . ' to ' . $my_file);
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// if (function_exists("opcache_invalidate"))
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// {
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// @opcache_invalidate($my_file);
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// }
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if (function_exists("wp_opcache_invalidate"))
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{
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wp_opcache_invalidate($my_file);
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}
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return true;
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}
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