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