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Diffstat (limited to 'lib/dokuwiki/inc/confutils.php')
-rw-r--r-- | lib/dokuwiki/inc/confutils.php | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/lib/dokuwiki/inc/confutils.php b/lib/dokuwiki/inc/confutils.php new file mode 100644 index 000000000..9ec7a551e --- /dev/null +++ b/lib/dokuwiki/inc/confutils.php @@ -0,0 +1,320 @@ +<?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){ + $ret = array(false,false,false); // return array + $mtypes = getMimeTypes(); // known mimetypes + $exts = join('|',array_keys($mtypes)); // known extensions (regexp) + if(!$knownonly){ + $exts = $exts.'|[_\-A-Za-z0-9]+'; // any extension + } + if(preg_match('#\.('.$exts.')$#i',$file,$matches)){ + $ext = strtolower($matches[1]); + } + + if($ext){ + if (isset($mtypes[$ext])){ + if($mtypes[$ext][0] == '!'){ + $ret = array($ext, substr($mtypes[$ext],1), true); + }else{ + $ret = array($ext, $mtypes[$ext], false); + } + }elseif(!$knownonly){ + $ret = array($ext, 'application/octet-stream', true); + } + } + + return $ret; +} + +/** + * 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) { + 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; + + // prepare disabled actions array and handle legacy options + $disabled = explode(',',$conf['disableactions']); + $disabled = array_map('trim',$disabled); + if(isset($conf['openregister']) && !$conf['openregister']) $disabled[] = 'register'; + if(isset($conf['resendpasswd']) && !$conf['resendpasswd']) $disabled[] = 'resendpwd'; + if(isset($conf['subscribers']) && !$conf['subscribers']) { + $disabled[] = 'subscribe'; + $disabled[] = 'subscribens'; + } + $disabled = array_unique($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=2 enc=utf-8 : |