diff options
Diffstat (limited to 'wp-admin/includes/misc.php')
| -rw-r--r-- | wp-admin/includes/misc.php | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/wp-admin/includes/misc.php b/wp-admin/includes/misc.php new file mode 100644 index 0000000..db28014 --- /dev/null +++ b/wp-admin/includes/misc.php @@ -0,0 +1,178 @@ +<?php + +function got_mod_rewrite() { + global $is_apache; + + // take 3 educated guesses as to whether or not mod_rewrite is available + if ( !$is_apache ) + return false; + + if ( function_exists( 'apache_get_modules' ) ) { + if ( !in_array( 'mod_rewrite', apache_get_modules() ) ) + return false; + } + + return true; +} + +// Returns an array of strings from a file (.htaccess ) from between BEGIN +// and END markers. +function extract_from_markers( $filename, $marker ) { + $result = array (); + + if (!file_exists( $filename ) ) { + return $result; + } + + if ( $markerdata = explode( "\n", implode( '', file( $filename ) ) )); + { + $state = false; + foreach ( $markerdata as $markerline ) { + if (strpos($markerline, '# END ' . $marker) !== false) + $state = false; + if ( $state ) + $result[] = $markerline; + if (strpos($markerline, '# BEGIN ' . $marker) !== false) + $state = true; + } + } + + return $result; +} + +// Inserts an array of strings into a file (.htaccess ), placing it between +// BEGIN and END markers. Replaces existing marked info. Retains surrounding +// data. Creates file if none exists. +// Returns true on write success, false on failure. +function insert_with_markers( $filename, $marker, $insertion ) { + return; + if (!file_exists( $filename ) || is_writeable( $filename ) ) { + if (!file_exists( $filename ) ) { + $markerdata = ''; + } else { + $markerdata = explode( "\n", implode( '', file( $filename ) ) ); + } + + $f = fopen( $filename, 'w' ); + $foundit = false; + if ( $markerdata ) { + $state = true; + foreach ( $markerdata as $n => $markerline ) { + if (strpos($markerline, '# BEGIN ' . $marker) !== false) + $state = false; + if ( $state ) { + if ( $n + 1 < count( $markerdata ) ) + fwrite( $f, "{$markerline}\n" ); + else + fwrite( $f, "{$markerline}" ); + } + if (strpos($markerline, '# END ' . $marker) !== false) { + fwrite( $f, "# BEGIN {$marker}\n" ); + if ( is_array( $insertion )) + foreach ( $insertion as $insertline ) + fwrite( $f, "{$insertline}\n" ); + fwrite( $f, "# END {$marker}\n" ); + $state = true; + $foundit = true; + } + } + } + if (!$foundit) { + fwrite( $f, "# BEGIN {$marker}\n" ); + foreach ( $insertion as $insertline ) + fwrite( $f, "{$insertline}\n" ); + fwrite( $f, "# END {$marker}\n" ); + } + fclose( $f ); + return true; + } else { + return false; + } +} + +/** + * Updates the htaccess file with the current rules if it is writable. + * + * Always writes to the file if it exists and is writable to ensure that we blank out old rules. + */ + +function save_mod_rewrite_rules() { + global $wp_rewrite; + + $home_path = get_home_path(); + $htaccess_file = $home_path.'.htaccess'; + + // If the file doesn't already exists check for write access to the directory and whether of not we have some rules. + // else check for write access to the file. + if ((!file_exists($htaccess_file) && is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks()) || is_writable($htaccess_file)) { + if ( got_mod_rewrite() ) { + $rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() ); + return insert_with_markers( $htaccess_file, 'WordPress', $rules ); + } + } + + return false; +} + +function update_recently_edited( $file ) { + $oldfiles = (array ) get_option( 'recently_edited' ); + if ( $oldfiles ) { + $oldfiles = array_reverse( $oldfiles ); + $oldfiles[] = $file; + $oldfiles = array_reverse( $oldfiles ); + $oldfiles = array_unique( $oldfiles ); + if ( 5 < count( $oldfiles )) + array_pop( $oldfiles ); + } else { + $oldfiles[] = $file; + } + update_option( 'recently_edited', $oldfiles ); +} + +// If siteurl or home changed, reset cookies and flush rewrite rules. +function update_home_siteurl( $old_value, $value ) { + global $wp_rewrite, $user_login, $user_pass_md5; + + if ( defined( "WP_INSTALLING" ) ) + return; + + // If home changed, write rewrite rules to new location. + $wp_rewrite->flush_rules(); + // Clear cookies for old paths. + wp_clearcookie(); + // Set cookies for new paths. + wp_setcookie( $user_login, $user_pass_md5, true, get_option( 'home' ), get_option( 'siteurl' )); +} + +add_action( 'update_option_home', 'update_home_siteurl', 10, 2 ); +add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 ); + +function url_shorten( $url ) { + $short_url = str_replace( 'http://', '', stripslashes( $url )); + $short_url = str_replace( 'www.', '', $short_url ); + if ('/' == substr( $short_url, -1 )) + $short_url = substr( $short_url, 0, -1 ); + if ( strlen( $short_url ) > 35 ) + $short_url = substr( $short_url, 0, 32 ).'...'; + return $short_url; +} + +function wp_reset_vars( $vars ) { + for ( $i=0; $i<count( $vars ); $i += 1 ) { + $var = $vars[$i]; + global $$var; + + if (!isset( $$var ) ) { + if ( empty( $_POST["$var"] ) ) { + if ( empty( $_GET["$var"] ) ) + $$var = ''; + else + $$var = $_GET["$var"]; + } else { + $$var = $_POST["$var"]; + } + } + } +} + +?> |