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<?php/*** BENNU - PHP iCalendar library* (c) 2005-2006 Ioannis Papaioannou (pj@moodle.org). All rights reserved.** Released under the LGPL.** See http://bennu.sourceforge.net/ for more information and downloads.** @author Ioannis Papaioannou* @version $Id$* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License*/class iCalendar_parameter {static function multiple_values_allowed($parameter) {switch($parameter) {case 'DELEGATED-FROM':case 'DELEGATED-TO':case 'MEMBER':return true;default:return false;}}static function default_value($parameter) {switch($parameter) {case 'CUTYPE': return 'INDIVIDUAL';case 'FBTYPE': return 'BUSY';case 'PARTSTAT': return 'NEEDS-ACTION';case 'RELATED': return 'START';case 'RELTYPE': return 'PARENT';case 'ROLE': return 'REQ-PARTICIPANT';case 'RSVP': return 'FALSE';default: return NULL;}}static function is_valid_value(&$parent_property, $parameter, $value) {switch($parameter) {// These must all be a URIcase 'ALTREP':case 'DIR':return rfc2445_is_valid_value($value, RFC2445_TYPE_URI);break;// These must be CAL-ADDRESS, which is equivalent to URIcase 'DELEGATED-FROM':case 'DELEGATED-TO':case 'MEMBER':case 'SENT-BY':return rfc2445_is_valid_value($value, RFC2445_TYPE_CAL_ADDRESS);break;// RFC-2445: can contain quotes.case 'CN':return true;break;// These have enumerated legal valuescase 'CUTYPE':$value = strtoupper($value);return ($value == 'INDIVIDUAL' || $value == 'GROUP' || $value == 'RESOURCE' || $value == 'ROOM' || $value == 'UNKNOWN' || rfc2445_is_xname($value));break;case 'ENCODING':$value = strtoupper($value);return ($value == '8BIT' || $value == 'BASE64' || rfc2445_is_xname($value));break;case 'FBTYPE':$value = strtoupper($value);return ($value == 'FREE' || $value == 'BUSY' || $value == 'BUSY-UNAVAILABLE' || $value == 'BUSY-TENTATIVE' || rfc2445_is_xname($value));break;case 'FMTTYPE':$fmttypes = array('TEXT' => array('PLAIN', 'RICHTEXT', 'ENRICHED', 'TAB-SEPARATED-VALUES', 'HTML', 'SGML','VND.LATEX-Z', 'VND.FMI.FLEXSTOR'),'MULTIPART' => array('MIXED', 'ALTERNATIVE', 'DIGEST', 'PARALLEL', 'APPLEDOUBLE', 'HEADER-SET','FORM-DATA', 'RELATED', 'REPORT', 'VOICE-MESSAGE', 'SIGNED', 'ENCRYPTED','BYTERANGES'),'MESSAGE' => array('RFC822', 'PARTIAL', 'EXTERNAL-BODY', 'NEWS', 'HTTP'),'APPLICATION' => array('OCTET-STREAM', 'POSTSCRIPT', 'ODA', 'ATOMICMAIL', 'ANDREW-INSET', 'SLATE','WITA', 'DEC-DX', 'DCA-RFT', 'ACTIVEMESSAGE', 'RTF', 'APPLEFILE','MAC-BINHEX40', 'NEWS-MESSAGE-ID', 'NEWS-TRANSMISSION', 'WORDPERFECT5.1','PDF', 'ZIP', 'MACWRITEII', 'MSWORD', 'REMOTE-PRINTING', 'MATHEMATICA','CYBERCASH', 'COMMONGROUND', 'IGES', 'RISCOS', 'ESHOP', 'X400-BP', 'SGML','CALS-1840', 'PGP-ENCRYPTED', 'PGP-SIGNATURE', 'PGP-KEYS', 'VND.FRAMEMAKER','VND.MIF', 'VND.MS-EXCEL', 'VND.MS-POWERPOINT', 'VND.MS-PROJECT','VND.MS-WORKS', 'VND.MS-TNEF', 'VND.SVD', 'VND.MUSIC-NIFF', 'VND.MS-ARTGALRY','VND.TRUEDOC', 'VND.KOAN', 'VND.STREET-STREAM', 'VND.FDF','SET-PAYMENT-INITIATION', 'SET-PAYMENT', 'SET-REGISTRATION-INITIATION','SET-REGISTRATION', 'VND.SEEMAIL', 'VND.BUSINESSOBJECTS','VND.MERIDIAN-SLINGSHOT', 'VND.XARA', 'SGML-OPEN-CATALOG', 'VND.RAPID','VND.ENLIVEN', 'VND.JAPANNET-REGISTRATION-WAKEUP','VND.JAPANNET-VERIFICATION-WAKEUP', 'VND.JAPANNET-PAYMENT-WAKEUP','VND.JAPANNET-DIRECTORY-SERVICE', 'VND.INTERTRUST.DIGIBOX', 'VND.INTERTRUST.NNCP'),'IMAGE' => array('JPEG', 'GIF', 'IEF', 'G3FAX', 'TIFF', 'CGM', 'NAPLPS', 'VND.DWG', 'VND.SVF','VND.DXF', 'PNG', 'VND.FPX', 'VND.NET-FPX'),'AUDIO' => array('BASIC', '32KADPCM', 'VND.QCELP'),'VIDEO' => array('MPEG', 'QUICKTIME', 'VND.VIVO', 'VND.MOTOROLA.VIDEO', 'VND.MOTOROLA.VIDEOP'));$value = strtoupper($value);// Mimetype is enumerated above and anything else results in false.@list($type, $subtype) = explode('/', $value);if(empty($type) || empty($subtype)) {return false;}if(!isset($fmttypes[$type]) || !in_array($subtype, $fmttypes[$type])) {return false;}return true;break;case 'LANGUAGE':$value = strtoupper($value);$parts = explode('-', $value);foreach($parts as $part) {if(empty($part)) {return false;}if(strspn($part, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789') != strlen($part)) {return false;}}return true;break;case 'PARTSTAT':$value = strtoupper($value);switch($parent_property->parent_component) {case 'VEVENT':return ($value == 'NEEDS-ACTION' || $value == 'ACCEPTED' || $value == 'DECLINED' || $value == 'TENTATIVE'|| $value == 'DELEGATED' || rfc2445_is_xname($value));break;case 'VTODO':return ($value == 'NEEDS-ACTION' || $value == 'ACCEPTED' || $value == 'DECLINED' || $value == 'TENTATIVE'|| $value == 'DELEGATED' || $value == 'COMPLETED' || $value == 'IN-PROCESS' || rfc2445_is_xname($value));break;case 'VJOURNAL':return ($value == 'NEEDS-ACTION' || $value == 'ACCEPTED' || $value == 'DECLINED' || rfc2445_is_xname($value));break;}return false;break;case 'RANGE':$value = strtoupper($value);return ($value == 'THISANDPRIOR' || $value == 'THISANDFUTURE');break;case 'RELATED':$value = strtoupper($value);return ($value == 'START' || $value == 'END');break;case 'RELTYPE':$value = strtoupper($value);return ($value == 'PARENT' || $value == 'CHILD' || $value == 'SIBLING' || rfc2445_is_xname($value));break;case 'ROLE':$value = strtoupper($value);return ($value == 'CHAIR' || $value == 'REQ-PARTICIPANT' || $value == 'OPT-PARTICIPANT' || $value == 'NON-PARTICIPANT' || rfc2445_is_xname($value));break;case 'RSVP':$value = strtoupper($value);return ($value == 'TRUE' || $value == 'FALSE');break;case 'TZID':if(empty($value)) {return false;}return (strcspn($value, ';:,') == strlen($value));break;case 'VALUE':$value = strtoupper($value);return ($value == 'BINARY' || $value == 'BOOLEAN' || $value == 'CAL-ADDRESS' || $value == 'DATE' ||$value == 'DATE-TIME' || $value == 'DURATION' || $value == 'FLOAT' || $value == 'INTEGER' ||$value == 'PERIOD' || $value == 'RECUR' || $value == 'TEXT' || $value == 'TIME' ||$value == 'URI' || $value == 'UTC-OFFSET' || rfc2445_is_xname($value));break;}}static function do_value_formatting($parameter, $value) {switch($parameter) {// Parameters of type CAL-ADDRESS or URI MUST be double-quotedcase 'ALTREP':case 'DIR':case 'DELEGATED-FROM':case 'DELEGATED-TO':case 'MEMBER':case 'SENT-BY':return '"'.$value.'"';break;// Textual parameter types must be double quoted if they contain COLON, SEMICOLON// or COMMA. Quoting always sounds easier and standards-conformant though.case 'CN':return '"'.$value.'"';break;// Parameters with enumerated legal values, just make them all capscase 'CUTYPE':case 'ENCODING':case 'FBTYPE':case 'FMTTYPE':case 'LANGUAGE':case 'PARTSTAT':case 'RANGE':case 'RELATED':case 'RELTYPE':case 'ROLE':case 'RSVP':case 'VALUE':return strtoupper($value);break;// Parameters we shouldn't be messing withcase 'TZID':return str_replace('"', '', $value);break;}}static function undo_value_formatting($parameter, $value) {}}