<?php
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/*
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Copyright (c) 2009, Scott Barr <gsbarr@gmail.com>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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class validate_datetime
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{
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/**
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* Check if the parsed datetime selectors are not set
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* to it's default value (zero).
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*
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* @param array $field_value
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* @return bool
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*/
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function _datetime_selected($field_value)
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{
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if (is_array($field_value) && count($field_value) >= 5)
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{
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$result = array_filter($field_value, create_function('$dt_unit', 'return ($dt_unit > 0);'));
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return (count($result) !== 0);
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}
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return false;
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}
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/**
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* Check wordbook for the existence of an
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* error message. If not found will return
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* the parsed error message with line break.
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*
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* @param $errmsg
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* @return string
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*/
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function _get_error($errmsg)
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{
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global $app;
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$errmsg = (isset($app->tform->wordbook[$errmsg])) ? $app->tform->wordbook[$errmsg] : $errmsg;
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$errmsg .= '<br />' . PHP_EOL;
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return $errmsg;
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}
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/**
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* Helper function - filter the contents of the
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* selectors and return the resulting unix timestamp.
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*
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* @param $field_value
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* @return int Unix timestamp
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*/
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function _get_timestamp_value($field_value)
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{
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$second = 0;
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$filtered_values = array_map(create_function('$item','return (int)$item;'), $field_value);
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extract($filtered_values, EXTR_OVERWRITE);
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return mktime($hour, $minute, $second, $month, $day, $year);
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}
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/**
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* The minimum requirement to submit a datetime field
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* is to set the day, month and year values. Check that
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* these values are not zero (default).
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*
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* @param string $field_name
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* @param array $field_value
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* @param array $validator
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* @return string|void Error message if found
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*/
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function not_empty($field_name, $field_value, $validator)
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{
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extract($field_value);
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if ( !($day > 0 && $month > 0 && $year > 0) ) {
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return $this->_get_error($validator['errmsg']);
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}
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}
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/**
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* Check that the selected datetime is in the future.
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*
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* @param string $field_name
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* @param array $field_value
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* @param array $validator
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* @return string|void Error message if found
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*/
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function is_future($field_name, $field_value, $validator)
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{
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$validator['compare'] = mktime(date('H'), (date('i')-30), 0, date('m'), date('d'), date('Y')); // Turn back the clock 30 minutes for slow posters.
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return $this->is_greater($field_name, $field_value, $validator);
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}
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/**
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* Compare the selected datetime to a timestamp
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* parsed via the validator array (key: compare).
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*
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* @param string $field_name
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* @param array $field_value
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* @param array $validator
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* @return string|void Error message if found
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*/
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function is_greater($field_name, $field_value, $validator)
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{
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if ( !isset($validator['compare']) || !is_numeric($validator['compare']) || (date('d/m/Y', $validator['compare']) == '01/01/1970') ) {
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return $this->_get_error('Could not find a unix timestamp to compare datetime with.');
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}
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$dt_stamp = $this->_get_timestamp_value($field_value);
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if ($dt_stamp < $validator['compare']) {
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return $this->_get_error($validator['errmsg']);
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}
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}
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}
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