mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-16 13:03:12 +01:00
382 lines
14 KiB
PHP
Executable File
382 lines
14 KiB
PHP
Executable File
<?php
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/**
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* eGroupWare
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package importexport
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* @link http://www.egroupware.org
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* @author Cornelius Weiss <nelius@cwtech.de>
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* @copyright Cornelius Weiss <nelius@cwtech.de>
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* @version $Id$
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*/
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/**
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* class importexport_helper_functions (only static methods)
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* use importexport_helper_functions::method
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*/
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class importexport_helper_functions {
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/**
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* Plugins are scanned and cached for all instances using this source path for given time (in seconds)
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*/
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const CACHE_EXPIRATION = 3600;
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/**
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* Files known to cause problems, and will be skipped in a plugin scan
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* If you put appname => true, the whole app will be skipped.
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*/
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protected static $blacklist_files = array(
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'news_admin' => array(
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'class.news_admin_import.inc.php',
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),
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);
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/**
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* Class used to provide extra conversion functions
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*
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* Passed in as a param to conversion()
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*/
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protected static $cclass = null;
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/**
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* nothing to construct here, only static functions!
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*/
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/**
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* Converts a custom time string to to unix timestamp
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* The format of the time string is given by the argument $_format
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* which takes the same parameters as the php date() function.
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*
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* @abstract supportet formatstrings: d,m,y,Y,H,h,i,s,O,a,A
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* If timestring is empty, php strtotime is used.
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* @param string $_string time string to convert
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* @param string $_format format of time string e.g.: d.m.Y H:i
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* @param int $_is_dst is day light saving time? 0 = no, 1 = yes, -1 = system default
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*/
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public static function custom_strtotime( $_string, $_format='', $_is_dst = -1) {
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if ( empty( $_format ) ) return strtotime( $_string );
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$fparams = explode( ',', chunk_split( $_format, 1, ',' ) );
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$spos = 0;
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foreach ( $fparams as $fparam ) {
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switch ( $fparam ) {
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case 'd': (int)$day = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'm': (int)$mon = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'y': (int)$year = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'Y': (int)$year = substr( $_string, $spos, 4 ); $spos += 4; break;
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case 'H': (int)$hour = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'h': (int)$hour = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'i': (int)$min = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 's': (int)$sec = substr( $_string, $spos, 2 ); $spos += 2; break;
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case 'O': (int)$offset = $year = substr( $_string, $spos, 5 ); $spos += 5; break;
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case 'a': (int)$hour = $fparam == 'am' ? $hour : $hour + 12; break;
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case 'A': (int)$hour = $fparam == 'AM' ? $hour : $hour + 12; break;
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default: $spos++; // seperator
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}
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}
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print_debug("hour:$hour; min:$min; sec:$sec; mon:$mon; day:$day; year:$year;\n");
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$timestamp = mktime($hour, $min, $sec, $mon, $day, $year, $_is_dst);
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// offset given?
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if ( isset( $offset ) && strlen( $offset == 5 ) ) {
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$operator = $offset{0};
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$ohour = 60 * 60 * (int)substr( $offset, 1, 2 );
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$omin = 60 * (int)substr( $offset, 3, 2 );
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if ( $operator == '+' ) $timestamp += $ohour + $omin;
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else $timestamp -= $ohour + $omin;
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}
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return $timestamp;
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}
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/**
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* converts accound_lid to account_id
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*
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* @param mixed $_account_lid comma seperated list or array with lids
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* @return mixed comma seperated list or array with ids
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*/
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public static function account_name2id( $_account_lids ) {
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$account_lids = is_array( $_account_lids ) ? $_account_lids : explode( ',', $_account_lids );
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foreach ( $account_lids as $account_lid ) {
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if ( $account_id = $GLOBALS['egw']->accounts->name2id( $account_lid )) {
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$account_ids[] = $account_id;
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}
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}
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return is_array( $_account_lids ) ? $account_ids : implode( ',', (array)$account_ids );
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} // end of member function account_lid2id
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/**
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* converts account_ids to account_lids
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*
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* @param mixed $_account_ids comma seperated list or array with ids
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* @return mixed comma seperated list or array with lids
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*/
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public static function account_id2name( $_account_id ) {
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$account_ids = is_array( $_account_id ) ? $_account_id : explode( ',', $_account_id );
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foreach ( $account_ids as $account_id ) {
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if ( $account_lid = $GLOBALS['egw']->accounts->id2name( $account_id )) {
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$account_lids[] = $account_lid;
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}
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}
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return is_array( $_account_id ) ? $account_lids : implode( ',', (array)$account_lids );
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} // end of member function account_id2lid
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/**
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* converts cat_id to a cat_name
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*
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* @param mixed _cat_ids comma seperated list or array
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* @return mixed comma seperated list or array with cat_names
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*/
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public static function cat_id2name( $_cat_ids ) {
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$cat_ids = is_array( $_cat_ids ) ? $_cat_ids : explode( ',', $_cat_ids );
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foreach ( $cat_ids as $cat_id ) {
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$cat_names[] = categories::id2name( (int)$cat_id );
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}
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return is_array( $_cat_ids ) ? $cat_names : implode(',',(array)$cat_names);
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} // end of member function category_id2name
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/**
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* converts cat_name to a cat_id.
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* If a cat isn't found, it will be created.
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*
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* @param mixed $_cat_names comma seperated list or array.
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* @return mixed comma seperated list or array with cat_ids
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*/
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public static function cat_name2id( $_cat_names ) {
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$cats = new categories(); // uses current user and app (egw_info[flags][currentapp])
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$cat_names = is_array( $_cat_names ) ? $_cat_names : explode( ',', $_cat_names );
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foreach ( $cat_names as $cat_name ) {
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if ( $cat_name == '' ) continue;
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if ( ( $cat_id = $cats->name2id( $cat_name ) ) == 0 ) {
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$cat_id = $cats->add( array(
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'name' => $cat_name,
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'access' => 'public',
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'descr' => $cat_name. ' ('. lang('Automatically created by importexport'). ')'
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));
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}
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$cat_ids[] = $cat_id;
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}
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return is_array( $_cat_names ) ? $cat_ids : implode( ',', (array)$cat_ids );
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} // end of member function category_name2id
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/**
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* conversion
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*
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* Conversions enable you to change / adapt the content of each _record field for your needs.
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* General syntax is: pattern1 |> replacement1 || ... || patternN |> replacementN
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* If the pattern-part of a pair is ommited it will match everything ('^.*$'), which
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* is only usefull for the last pair, as they are worked from left to right.
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* Example: 1|>private||public
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* This will translate a '1' in the _record field to 'privat' and everything else to 'public'.
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*
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* In addintion to the fields assign by the pattern of the reg.exp.
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* you can use all other _record fields, with the syntax |[FIELDINDEX].
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* Example:
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* Your record is:
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* array( 0 => Company, 1 => NFamily, 2 => NGiven
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* Your conversion string for field 0 (Company):
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* .+|>|[0]: |[1], |[2]|||[1], |[2]
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* This constructs something like
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* Company: FamilyName, GivenName or FamilyName, GivenName if 'Company' is empty.
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*
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* Moreover the two helper function cat() and account() can be used.
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* cat(Cat1,...,CatN) returns a (','-separated) list with the cat_id's. If a
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* category isn't found, it will be automaticaly added.
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*
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* Patterns as well as the replacement can be regular expressions (the replacement is done
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* via ereg_replace).
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*
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* @param array _record reference with record to do the conversion with
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* @param array _conversion array with conversion description
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* @param object &$cclass calling class to process the '@ evals'
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* @return bool
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*/
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public static function conversion( &$_record, $_conversion, &$_cclass = null ) {
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if (empty( $_conversion ) ) return $_record;
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self::$cclass =& $_cclass;
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$PSep = '||'; // Pattern-Separator, separats the pattern-replacement-pairs in conversion
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$ASep = '|>'; // Assignment-Separator, separats pattern and replacesment
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$CPre = '|['; $CPos = ']'; // |[_record-idx] is expanded to the corespondig value
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$TPre = '|T{'; $TPos = '}'; // |{_record-idx} is trimmed
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$CntlPre = '|TC{'; // Filter all cntl-chars \x01-\x1f and trim
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$CntlnCLPre = '|TCnCL{'; // Like |C{ but allowes CR and LF
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$INE = '|INE{'; // Only insert if stuff in ^^ is not empty
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foreach ( $_conversion as $idx => $conversion_string ) {
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if ( empty( $conversion_string ) ) continue;
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// fetch patterns ($rvalues)
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$pat_reps = explode( $PSep, stripslashes( $conversion_string ) );
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foreach( $pat_reps as $k => $pat_rep ) {
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list( $pattern, $replace ) = explode( $ASep, $pat_rep, 2 );
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if( $replace == '' ) {
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$replace = $pattern; $pattern = '^.*$';
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}
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$rvalues[$pattern] = $replace; // replace two with only one, added by the form
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}
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// conversion list may be longer than $_record aka (no_csv)
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$val = array_key_exists( $idx, $_record ) ? $_record[$idx] : '';
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$c_functions = array('cat', 'account', 'strtotime');
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if($_cclass) {
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// Add in additional methods
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$reflection = new ReflectionClass(get_class($_cclass));
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$methods = $reflection->getMethods(ReflectionMethod::IS_STATIC);
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foreach($methods as $method) {
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$c_functions[] = $method->name;
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}
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}
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$c_functions = implode('|', $c_functions);
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foreach ( $rvalues as $pattern => $replace ) {
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if( ereg( (string)$pattern, $val) ) {
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$val = ereg_replace( (string)$pattern, $replace, (string)$val );
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$reg = '\|\[([a-zA-Z_0-9]+)\]';
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while( ereg( $reg, $val, $vars ) ) {
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// expand all _record fields
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$val = str_replace(
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$CPre . $vars[1] . $CPos,
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$_record[array_search($vars[1], array_keys($_record))],
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$val
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);
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}
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$val = preg_replace_callback( "/($c_functions)\(([^)]*)\)/i", array( self, 'c2_dispatcher') , $val );
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}
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}
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// clean each field
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$val = preg_replace_callback("/(\|T\{|\|TC\{|\|TCnCL\{|\|INE\{)(.*)\}/", array( self, 'strclean'), $val );
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$_record[$idx] = $val;
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}
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return $_record;
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} // end of member function conversion
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/**
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* callback for preg_replace_callback from self::conversion.
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* This function gets called when 2nd level conversions are made,
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* like the cat() and account() statements in the conversions.
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*
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* @param array $_matches
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*/
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private static function c2_dispatcher( $_matches ) {
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$action = &$_matches[1]; // cat or account ...
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$data = &$_matches[2]; // datas for action
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switch ( $action ) {
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case 'strtotime' :
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list( $string, $format ) = explode( ',', $data );
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return self::custom_strtotime( trim( $string ), trim( $format ) );
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default :
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if(self::$cclass && method_exists(self::$cclass, $action)) {
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$class = get_class(self::$cclass);
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return call_user_func("$class::$action", $data);
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}
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$method = (string)$action. ( is_int( $data ) ? '_id2name' : '_name2id' );
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if(self::$cclass && method_exists(self::$cclass, $method)) {
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$class = get_class(self::$cclass);
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return call_user_func("$class::$action", $data);
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} else {
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return self::$method( $data );
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}
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}
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}
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private static function strclean( $_matches ) {
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switch( $_matches[1] ) {
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case '|T{' : return trim( $_matches[2] );
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case '|TC{' : return trim( preg_replace( '/[\x01-\x1F]+/', '', $_matches[2] ) );
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case '|TCnCL{' : return trim( preg_replace( '/[\x01-\x09\x11\x12\x14-\x1F]+/', '', $_matches[2] ) );
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case '|INE{' : return preg_match( '/\^.+\^/', $_matches[2] ) ? $_matches[2] : '';
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default:
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throw new Exception('Error in conversion string! "'. substr( $_matches[1], 0, -1 ). '" is not valid!');
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}
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}
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/**
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* returns a list of importexport plugins
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*
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* @param string $_tpye {import | export | all}
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* @param string $_appname {<appname> | all}
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* @return array(<appname> => array( <type> => array(<plugin> => <title>)))
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*/
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public static function get_plugins( $_appname = 'all', $_type = 'all' ) {
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$plugins = egw_cache::getTree(
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__CLASS__,
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'plugins',
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array('importexport_helper_functions','_get_plugins'),
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array(array_keys($GLOBALS['egw_info']['apps']), array('import', 'export')),
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self::CACHE_EXPIRATION
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);
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$appnames = $_appname == 'all' ? array_keys($GLOBALS['egw_info']['apps']) : (array)$_appname;
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$types = $_type == 'all' ? array('import','export') : (array)$_type;
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foreach($plugins as $appname => $types) {
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if(!in_array($appname, $appnames)) unset($plugins['appname']);
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}
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foreach($plugins as $appname => $types) {
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$plugins[$appname] = array_intersect_key($plugins[$appname], $types);
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}
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return $plugins;
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}
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public static function _get_plugins(Array $appnames, Array $types) {
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$plugins = array();
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foreach ($appnames as $appname) {
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if(array_key_exists($appname, self::$blacklist_files) && self::$blacklist_files[$appname] === true) continue;
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$appdir = EGW_INCLUDE_ROOT. "/$appname/inc";
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if(!is_dir($appdir)) continue;
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$d = dir($appdir);
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// step through each file in appdir
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while (false !== ($entry = $d->read())) {
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// Blacklisted?
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if(is_array(self::$blacklist_files[$appname]) && in_array($entry, self::$blacklist_files[$appname])) continue;
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list( ,$classname, ,$extension) = explode('.',$entry);
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$file = $appdir. '/'. $entry;
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foreach ($types as $type) {
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if( !is_file($file) || strpos($entry, $type) === false || $extension != 'php' ) continue;
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require_once($file);
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$reflectionClass = new ReflectionClass($classname);
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if($reflectionClass->IsInstantiable() &&
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$reflectionClass->implementsInterface('importexport_iface_'.$type.'_plugin')) {
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try {
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$plugin_object = new $classname;
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}
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catch (Exception $exception) {
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continue;
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}
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$plugins[$appname][$type][$classname] = $plugin_object->get_name();
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unset ($plugin_object);
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}
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}
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}
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$d->close();
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}
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//error_log(__CLASS__.__FUNCTION__.print_r($plugins,true));
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return $plugins;
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}
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/**
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* returns list of apps which have plugins of given type.
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*
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* @param string $_type
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* @return array $num => $appname
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*/
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public static function get_apps($_type) {
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return array_keys(self::get_plugins('all',$_type));
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}
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public static function guess_filetype( $_file ) {
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}
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} // end of importexport_helper_functions
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