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<?php
/**************************************************************************
* This file is part of the WebIssues Server program
* Copyright (C) 2006 Michał Męciński
* Copyright (C) 2007-2008 WebIssues Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
**************************************************************************/
function wi_verify_definition( $definition )
{
$info = wi_parse_definition( $definition );
wi_verify_definition_info( $info );
}
function wi_verify_value( $definition, $value, $project_id )
{
$info = wi_parse_definition( $definition );
return wi_verify_value_info( $info, $value, $project_id );
}
function wi_get_default_value( $definition )
{
$info = wi_parse_definition( $definition );
return $info[ 'default' ];
}
function wi_parse_definition( $definition )
{
$reg_num = '-?\d+';
$reg_str = '"(?:\\\\["\\\\]|[^"\\\\\\n])*"';
$reg_arr = "\{$reg_str(?:,$reg_str)*}";
$reg_def = "/^([A-Z]+)(( ([-a-z]+)=($reg_num|$reg_str|$reg_arr))*)$/";
if ( !preg_match( $reg_def, $definition, $parts ) )
wi_error( 343 );
$info[ 'type' ] = $parts[ 1 ];
$meta = array();
$count = preg_match_all( "/([-a-z]+)=($reg_num|$reg_str|$reg_arr)/", $parts[ 2 ], $matches );
for ( $i = 0; $i < $count; $i++ ) {
$value = $matches[ 2 ][ $i ];
$letter = $value{ 0 };
if ( $letter == '"' ) {
$value = wi_string( wi_unquote( $value ), 80, false );
} else if ( $letter == '{' ) {
preg_match_all( "/$reg_str/", $value, $items );
$value = array();
foreach ( $items[ 0 ] as $item )
$value[] = wi_string( wi_unquote( $item ), 80, false );
} else {
if ( !wi_check_integer( $value ) )
wi_error( 343 );
$value = (int)$value;
}
$meta[ $matches[ 1 ][ $i ] ] = $value;
}
if ( isset( $meta[ 'default' ] ) ) {
$info[ 'default' ] = $meta[ 'default' ];
unset( $meta[ 'default' ] );
} else {
$info[ 'default' ] = '';
}
if ( isset( $meta[ 'required' ] ) ) {
$info[ 'required' ] = $meta[ 'required' ];
unset( $meta[ 'required' ] );
} else {
$info[ 'required' ] = 0;
}
$info[ 'metadata' ] = $meta;
return $info;
}
function wi_verify_definition_info( $info )
{
switch ( $info[ 'type' ] ) {
case 'TEXT':
wi_verify_text_definition_info( $info );
break;
case 'ENUM':
wi_verify_enum_definition_info( $info );
break;
case 'NUMERIC':
wi_verify_numeric_definition_info( $info );
break;
case 'DATETIME':
wi_verify_datetime_definition_info( $info );
break;
case 'USER':
wi_verify_user_definition_info( $info );
break;
default:
wi_error( 343 );
}
$required = $info[ 'required' ];
if ( !is_int( $required ) || $required < 0 || $required > 1 )
wi_error( 343 );
wi_verify_value_info( $info, $info[ 'default' ], 0 );
}
function wi_verify_text_definition_info( $info )
{
foreach ( $info[ 'metadata' ] as $meta => $value ) {
switch ( $meta ) {
case 'max-length':
if ( !is_int( $value ) || $value < 1 || $value > 80 )
wi_error( 343 );
break;
default:
wi_error( 343 );
}
}
}
function wi_verify_enum_definition_info( $info )
{
if ( !wi_metadata( $info, 'items', false ) )
wi_error( 343 );
foreach ( $info[ 'metadata' ] as $meta => $value ) {
switch ( $meta ) {
case 'items':
if ( !is_array( $value ) )
wi_error( 343 );
if ( array_search( '', $value ) !== false )
wi_error( 343 );
if ( count( array_unique( $value ) ) != count( $value ) )
wi_error( 343 );
break;
case 'editable':
if ( !is_int( $value ) || $value < 0 || $value > 1 )
wi_error( 343 );
break;
default:
wi_error( 343 );
}
}
}
function wi_verify_numeric_definition_info( $info )
{
foreach ( $info[ 'metadata' ] as $meta => $value ) {
switch ( $meta ) {
case 'decimal':
if ( !is_int( $value ) || $value < 0 || $value > 6 )
wi_error( 343 );
break;
case 'min-value':
case 'max-value':
if ( !is_string( $value ) )
wi_error( 343 );
break;
default:
wi_error( 343 );
}
}
$decimal = wi_metadata( $info, 'decimal', 0 );
$min = wi_metadata( $info, 'min-value', false );
$max = wi_metadata( $info, 'max-value', false );
if ( $min !== false && !wi_check_decimal( $min, $decimal ) )
wi_error( 342 );
if ( $max !== false && !wi_check_decimal( $max, $decimal ) )
wi_error( 342 );
if ( $min !== false && $max !== false && (float)$min > (float)$max )
wi_error( 342 );
}
function wi_verify_datetime_definition_info( $info )
{
foreach ( $info[ 'metadata' ] as $meta => $value ) {
switch ( $meta ) {
case 'time':
if ( !is_int( $value ) || $value < 0 || $value > 1 )
wi_error( 343 );
break;
default:
wi_error( 343 );
}
}
}
function wi_verify_user_definition_info( $info )
{
foreach ( $info[ 'metadata' ] as $meta => $value ) {
switch ( $meta ) {
case 'members':
if ( !is_int( $value ) || $value < 0 || $value > 1 )
wi_error( 343 );
break;
default:
wi_error( 343 );
}
}
}
function wi_verify_value_info( $info, $value, $project_id )
{
$value = wi_string( $value, 80, $info[ 'required' ] );
if ( $value == '' )
return $value;
switch ( $info[ 'type' ] ) {
case 'TEXT':
return wi_verify_text_value_info( $info, $value );
case 'ENUM':
return wi_verify_enum_value_info( $info, $value );
case 'NUMERIC':
return wi_verify_numeric_value_info( $info, $value );
case 'DATETIME':
return wi_verify_datetime_value_info( $info, $value );
case 'USER':
return wi_verify_user_value_info( $info, $value, $project_id );
default:
wi_error( 343 );
}
}
function wi_verify_text_value_info( $info, $value )
{
if ( wi_metadata( $info, 'max-length', 0 ) ) {
if ( wi_length( $value ) > $info[ 'metadata' ][ 'max-length' ] )
wi_error( 342 );
}
return $value;
}
function wi_verify_enum_value_info( $info, $value )
{
if ( !wi_metadata( $info, 'editable', 0 ) ) {
$items = wi_metadata( $info, 'items', array() );
if ( array_search( $value, $items ) === false )
wi_error( 342 );
}
return $value;
}
function wi_verify_numeric_value_info( $info, $value )
{
$decimal = wi_metadata( $info, 'decimal', 0 );
if ( !wi_check_decimal( $value, $decimal ) )
wi_error( 342 );
$numeric = (float)$value;
$min = wi_metadata( $info, 'min-value', false );
if ( $min !== false && $numeric < (float)$min )
wi_error( 342 );
$max = wi_metadata( $info, 'max-value', false );
if ( $max !== false && $numeric > (float)$max )
wi_error( 342 );
return number_format( $numeric, $decimal, '.', '' );
}
function wi_verify_datetime_value_info( $info, $value )
{
$reg_date = '(\d\d\d\d)-(\d\d)-(\d\d)';
$reg_time = '(\d\d):(\d\d)';
$time = wi_metadata( $info, 'time', 0 );
if ( $time )
$reg = "/^$reg_date $reg_time$/";
else
$reg = "/^$reg_date$/";
if ( !preg_match( $reg, $value, $matches ) )
wi_error( 342 );
if ( !checkdate( $matches[ 2 ], $matches[ 3 ], $matches[ 1 ] ) )
wi_error( 342 );
if ( $time ) {
if ( $matches[ 4 ] < 0 || $matches[ 4 ] > 23 || $matches[ 5 ] < 0 || $matches[ 5 ] > 59 )
wi_error( 342 );
}
return $value;
}
function wi_verify_user_value_info( $info, $value, $project_id )
{
$query = 'SELECT u.user_id FROM {users} AS u';
if ( wi_metadata( $info, 'members', 0 ) && $project_id != 0 )
$query .= ' JOIN {rights} AS r ON r.user_id = u.user_id AND r.project_id = %2$d';
$query .= ' WHERE u.user_name = %1$s';
if ( !wi_query_row( $query, $value, $project_id ) )
wi_error( 342 );
return $value;
}
function wi_metadata( $info, $name, $default )
{
if ( isset( $info[ 'metadata' ][ $name ] ) )
return $info[ 'metadata' ][ $name ];
return $default;
}
function wi_check_decimal( $value, $decimal )
{
if ( $decimal == 0 )
$reg = '/^-?\d+$/';
else
$reg = '/^-?\d+(?:\.(\d+))?$/';
if ( !preg_match( $reg, $value, $matches ) )
return false;
if ( $decimal > 0 && isset( $matches[ 1 ] ) && strlen( $matches[ 1 ] ) > $decimal )
return false;
return true;
}
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