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334 lines (304 loc) · 9.19 KB
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<?php
/**
* Utilities for collecting data from config files
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Harry Fuecks <hfuecks@gmail.com>
*/
/**
* Returns the (known) extension and mimetype of a given filename
*
* If $knownonly is true (the default), then only known extensions
* are returned.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function mimetype($file, $knownonly=true){
$mtypes = getMimeTypes(); // known mimetypes
$ext = strrpos($file, '.');
if ($ext === false) {
return array(false, false, false);
}
$ext = strtolower(substr($file, $ext + 1));
if (!isset($mtypes[$ext])){
if ($knownonly) {
return array(false, false, false);
} else {
return array($ext, 'application/octet-stream', true);
}
}
if($mtypes[$ext][0] == '!'){
return array($ext, substr($mtypes[$ext],1), true);
}else{
return array($ext, $mtypes[$ext], false);
}
}
/**
* returns a hash of mimetypes
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function getMimeTypes() {
static $mime = null;
if ( !$mime ) {
$mime = retrieveConfig('mime','confToHash');
}
return $mime;
}
/**
* returns a hash of acronyms
*
* @author Harry Fuecks <hfuecks@gmail.com>
*/
function getAcronyms() {
static $acronyms = null;
if ( !$acronyms ) {
$acronyms = retrieveConfig('acronyms','confToHash');
}
return $acronyms;
}
/**
* returns a hash of smileys
*
* @author Harry Fuecks <hfuecks@gmail.com>
*/
function getSmileys() {
static $smileys = null;
if ( !$smileys ) {
$smileys = retrieveConfig('smileys','confToHash');
}
return $smileys;
}
/**
* returns a hash of entities
*
* @author Harry Fuecks <hfuecks@gmail.com>
*/
function getEntities() {
static $entities = null;
if ( !$entities ) {
$entities = retrieveConfig('entities','confToHash');
}
return $entities;
}
/**
* returns a hash of interwikilinks
*
* @author Harry Fuecks <hfuecks@gmail.com>
*/
function getInterwiki() {
static $wikis = null;
if ( !$wikis ) {
$wikis = retrieveConfig('interwiki','confToHash',array(true));
}
//add sepecial case 'this'
$wikis['this'] = DOKU_URL.'{NAME}';
return $wikis;
}
/**
* returns array of wordblock patterns
*
*/
function getWordblocks() {
static $wordblocks = null;
if ( !$wordblocks ) {
$wordblocks = retrieveConfig('wordblock','file');
}
return $wordblocks;
}
function getSchemes() {
static $schemes = null;
if ( !$schemes ) {
$schemes = retrieveConfig('scheme','file');
}
$schemes = array_map('trim', $schemes);
$schemes = preg_replace('/^#.*/', '', $schemes);
$schemes = array_filter($schemes);
return $schemes;
}
/**
* Builds a hash from an array of lines
*
* If $lower is set to true all hash keys are converted to
* lower case.
*
* @author Harry Fuecks <hfuecks@gmail.com>
* @author Andreas Gohr <andi@splitbrain.org>
* @author Gina Haeussge <gina@foosel.net>
*/
function linesToHash($lines, $lower=false) {
$conf = array();
foreach ( $lines as $line ) {
//ignore comments (except escaped ones)
$line = preg_replace('/(?<![&\\\\])#.*$/','',$line);
$line = str_replace('\\#','#',$line);
$line = trim($line);
if(empty($line)) continue;
$line = preg_split('/\s+/',$line,2);
// Build the associative array
if($lower){
$conf[strtolower($line[0])] = $line[1];
}else{
$conf[$line[0]] = $line[1];
}
}
return $conf;
}
/**
* Builds a hash from a configfile
*
* If $lower is set to true all hash keys are converted to
* lower case.
*
* @author Harry Fuecks <hfuecks@gmail.com>
* @author Andreas Gohr <andi@splitbrain.org>
* @author Gina Haeussge <gina@foosel.net>
*/
function confToHash($file,$lower=false) {
$conf = array();
$lines = @file( $file );
if ( !$lines ) return $conf;
return linesToHash($lines, $lower);
}
/**
* Retrieve the requested configuration information
*
* @author Chris Smith <chris@jalakai.co.uk>
*
* @param string $type the configuration settings to be read, must correspond to a key/array in $config_cascade
* @param callback $fn the function used to process the configuration file into an array
* @param array $param optional additional params to pass to the callback
* @return array configuration values
*/
function retrieveConfig($type,$fn,$params=null) {
global $config_cascade;
if(!is_array($params)) $params = array();
$combined = array();
if (!is_array($config_cascade[$type])) trigger_error('Missing config cascade for "'.$type.'"',E_USER_WARNING);
foreach (array('default','local','protected') as $config_group) {
if (empty($config_cascade[$type][$config_group])) continue;
foreach ($config_cascade[$type][$config_group] as $file) {
if (@file_exists($file)) {
$config = call_user_func_array($fn,array_merge(array($file),$params));
$combined = array_merge($combined, $config);
}
}
}
return $combined;
}
/**
* Include the requested configuration information
*
* @author Chris Smith <chris@jalakai.co.uk>
*
* @param string $type the configuration settings to be read, must correspond to a key/array in $config_cascade
* @return array list of files, default before local before protected
*/
function getConfigFiles($type) {
global $config_cascade;
$files = array();
if (!is_array($config_cascade[$type])) trigger_error('Missing config cascade for "'.$type.'"',E_USER_WARNING);
foreach (array('default','local','protected') as $config_group) {
if (empty($config_cascade[$type][$config_group])) continue;
$files = array_merge($files, $config_cascade[$type][$config_group]);
}
return $files;
}
/**
* check if the given action was disabled in config
*
* @author Andreas Gohr <andi@splitbrain.org>
* @returns boolean true if enabled, false if disabled
*/
function actionOK($action){
static $disabled = null;
if(is_null($disabled)){
global $conf;
global $auth;
// prepare disabled actions array and handle legacy options
$disabled = explode(',',$conf['disableactions']);
$disabled = array_map('trim',$disabled);
if((isset($conf['openregister']) && !$conf['openregister']) || is_null($auth) || !$auth->canDo('addUser')) {
$disabled[] = 'register';
}
if((isset($conf['resendpasswd']) && !$conf['resendpasswd']) || is_null($auth) || !$auth->canDo('modPass')) {
$disabled[] = 'resendpwd';
}
if((isset($conf['subscribers']) && !$conf['subscribers']) || is_null($auth)) {
$disabled[] = 'subscribe';
}
if (is_null($auth) || !$auth->canDo('Profile')) {
$disabled[] = 'profile';
}
if (is_null($auth)) {
$disabled[] = 'login';
}
if (is_null($auth) || !$auth->canDo('logout')) {
$disabled[] = 'logout';
}
$disabled = array_unique($disabled);
}
return !in_array($action,$disabled);
}
/**
* check if headings should be used as link text for the specified link type
*
* @author Chris Smith <chris@jalakai.co.uk>
*
* @param string $linktype 'content'|'navigation', content applies to links in wiki text
* navigation applies to all other links
* @returns boolean true if headings should be used for $linktype, false otherwise
*/
function useHeading($linktype) {
static $useHeading = null;
if (is_null($useHeading)) {
global $conf;
if (!empty($conf['useheading'])) {
switch ($conf['useheading']) {
case 'content':
$useHeading['content'] = true;
break;
case 'navigation':
$useHeading['navigation'] = true;
break;
default:
$useHeading['content'] = true;
$useHeading['navigation'] = true;
}
} else {
$useHeading = array();
}
}
return (!empty($useHeading[$linktype]));
}
/**
* obscure config data so information isn't plain text
*
* @param string $str data to be encoded
* @param string $code encoding method, values: plain, base64, uuencode.
* @return string the encoded value
*/
function conf_encodeString($str,$code) {
switch ($code) {
case 'base64' : return '<b>'.base64_encode($str);
case 'uuencode' : return '<u>'.convert_uuencode($str);
case 'plain':
default:
return $str;
}
}
/**
* return obscured data as plain text
*
* @param string $str encoded data
* @return string plain text
*/
function conf_decodeString($str) {
switch (substr($str,0,3)) {
case '<b>' : return base64_decode(substr($str,3));
case '<u>' : return convert_uudecode(substr($str,3));
default: // not encode (or unknown)
return $str;
}
}
//Setup VIM: ex: et ts=4 :