nextcloud/inc/MDB2/Schema/Parser2.php

625 lines
22 KiB
PHP

<?php
/**
* PHP versions 4 and 5
*
* Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,
* Stig. S. Bakken, Lukas Smith, Igor Feghali
* All rights reserved.
*
* MDB2_Schema enables users to maintain RDBMS independant schema files
* in XML that can be used to manipulate both data and database schemas
* This LICENSE is in the BSD license style.
*
* 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 Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,
* Lukas Smith, Igor Feghali nor the names of his 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
* REGENTS 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.
*
* Author: Igor Feghali <ifeghali@php.net>
*
* @category Database
* @package MDB2_Schema
* @author Igor Feghali <ifeghali@php.net>
* @license BSD http://www.opensource.org/licenses/bsd-license.php
* @version CVS: $Id: Parser2.php,v 1.12 2008/11/30 03:34:00 clockwerx Exp $
* @link http://pear.php.net/packages/MDB2_Schema
*/
require_once 'XML/Unserializer.php';
require_once 'MDB2/Schema/Validate.php';
/**
* Parses an XML schema file
*
* @category Database
* @package MDB2_Schema
* @author Lukas Smith <smith@pooteeweet.org>
* @author Igor Feghali <ifeghali@php.net>
* @license BSD http://www.opensource.org/licenses/bsd-license.php
* @link http://pear.php.net/packages/MDB2_Schema
*/
class MDB2_Schema_Parser2 extends XML_Unserializer
{
var $database_definition = array();
var $database_loaded = array();
var $variables = array();
var $error;
var $structure = false;
var $val;
var $options = array();
var $table = array();
var $table_name = '';
var $field = array();
var $field_name = '';
var $index = array();
var $index_name = '';
var $constraint = array();
var $constraint_name = '';
var $sequence = array();
var $sequence_name = '';
var $init = array();
function __construct($variables, $fail_on_invalid_names = true, $structure = false, $valid_types = array(), $force_defaults = true)
{
// force ISO-8859-1 due to different defaults for PHP4 and PHP5
// todo: this probably needs to be investigated some more and cleaned up
$this->options['encoding'] = 'ISO-8859-1';
$this->options['XML_UNSERIALIZER_OPTION_ATTRIBUTES_PARSE'] = true;
$this->options['XML_UNSERIALIZER_OPTION_ATTRIBUTES_ARRAYKEY'] = false;
$this->options['forceEnum'] = array('table', 'field', 'index', 'foreign', 'insert', 'update', 'delete', 'sequence');
/*
* todo: find a way to force the following items not to be parsed as arrays
* as it cause problems in functions with multiple arguments
*/
//$this->options['forceNEnum'] = array('value', 'column');
$this->variables = $variables;
$this->structure = $structure;
$this->val =& new MDB2_Schema_Validate($fail_on_invalid_names, $valid_types, $force_defaults);
parent::XML_Unserializer($this->options);
}
function MDB2_Schema_Parser2($variables, $fail_on_invalid_names = true, $structure = false, $valid_types = array(), $force_defaults = true)
{
$this->__construct($variables, $fail_on_invalid_names, $structure, $valid_types, $force_defaults);
}
function parse()
{
$result = $this->unserialize($this->filename, true);
if (PEAR::isError($result)) {
return $result;
} else {
$this->database_loaded = $this->getUnserializedData();
return $this->fixDatabaseKeys($this->database_loaded);
}
}
function setInputFile($filename)
{
$this->filename = $filename;
return MDB2_OK;
}
function renameKey(&$arr, $oKey, $nKey)
{
$arr[$nKey] = &$arr[$oKey];
unset($arr[$oKey]);
}
function fixDatabaseKeys($database)
{
$this->database_definition = array(
'name' => '',
'create' => '',
'overwrite' => '',
'charset' => '',
'description' => '',
'comments' => '',
'tables' => array(),
'sequences' => array()
);
if (!empty($database['name'])) {
$this->database_definition['name'] = $database['name'];
}
if (!empty($database['create'])) {
$this->database_definition['create'] = $database['create'];
}
if (!empty($database['overwrite'])) {
$this->database_definition['overwrite'] = $database['overwrite'];
}
if (!empty($database['charset'])) {
$this->database_definition['charset'] = $database['charset'];
}
if (!empty($database['description'])) {
$this->database_definition['description'] = $database['description'];
}
if (!empty($database['comments'])) {
$this->database_definition['comments'] = $database['comments'];
}
if (!empty($database['table']) && is_array($database['table'])) {
foreach ($database['table'] as $table) {
$this->fixTableKeys($table);
}
}
if (!empty($database['sequence']) && is_array($database['sequence'])) {
foreach ($database['sequence'] as $sequence) {
$this->fixSequenceKeys($sequence);
}
}
$result = $this->val->validateDatabase($this->database_definition);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
}
return MDB2_OK;
}
function fixTableKeys($table)
{
$this->table = array(
'was' => '',
'description' => '',
'comments' => '',
'fields' => array(),
'indexes' => array(),
'constraints' => array(),
'initialization' => array()
);
if (!empty($table['name'])) {
$this->table_name = $table['name'];
} else {
$this->table_name = '';
}
if (!empty($table['was'])) {
$this->table['was'] = $table['was'];
}
if (!empty($table['description'])) {
$this->table['description'] = $table['description'];
}
if (!empty($table['comments'])) {
$this->table['comments'] = $table['comments'];
}
if (!empty($table['declaration']) && is_array($table['declaration'])) {
if (!empty($table['declaration']['field']) && is_array($table['declaration']['field'])) {
foreach ($table['declaration']['field'] as $field) {
$this->fixTableFieldKeys($field);
}
}
if (!empty($table['declaration']['index']) && is_array($table['declaration']['index'])) {
foreach ($table['declaration']['index'] as $index) {
$this->fixTableIndexKeys($index);
}
}
if (!empty($table['declaration']['foreign']) && is_array($table['declaration']['foreign'])) {
foreach ($table['declaration']['foreign'] as $constraint) {
$this->fixTableConstraintKeys($constraint);
}
}
}
if (!empty($table['initialization']) && is_array($table['initialization'])) {
if (!empty($table['initialization']['insert']) && is_array($table['initialization']['insert'])) {
foreach ($table['initialization']['insert'] as $init) {
$this->fixTableInitializationKeys($init, 'insert');
}
}
if (!empty($table['initialization']['update']) && is_array($table['initialization']['update'])) {
foreach ($table['initialization']['update'] as $init) {
$this->fixTableInitializationKeys($init, 'update');
}
}
if (!empty($table['initialization']['delete']) && is_array($table['initialization']['delete'])) {
foreach ($table['initialization']['delete'] as $init) {
$this->fixTableInitializationKeys($init, 'delete');
}
}
}
$result = $this->val->validateTable($this->database_definition['tables'], $this->table, $this->table_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
} else {
$this->database_definition['tables'][$this->table_name] = $this->table;
}
return MDB2_OK;
}
function fixTableFieldKeys($field)
{
$this->field = array();
if (!empty($field['name'])) {
$this->field_name = $field['name'];
} else {
$this->field_name = '';
}
if (!empty($field['was'])) {
$this->field['was'] = $field['was'];
}
if (!empty($field['type'])) {
$this->field['type'] = $field['type'];
}
if (!empty($field['fixed'])) {
$this->field['fixed'] = $field['fixed'];
}
if (isset($field['default'])) {
$this->field['default'] = $field['default'];
}
if (!empty($field['notnull'])) {
$this->field['notnull'] = $field['notnull'];
}
if (!empty($field['autoincrement'])) {
$this->field['autoincrement'] = $field['autoincrement'];
}
if (!empty($field['unsigned'])) {
$this->field['unsigned'] = $field['unsigned'];
}
if (!empty($field['length'])) {
$this->field['length'] = $field['length'];
}
if (!empty($field['description'])) {
$this->field['description'] = $field['description'];
}
if (!empty($field['comments'])) {
$this->field['comments'] = $field['comments'];
}
$result = $this->val->validateField($this->table['fields'], $this->field, $this->field_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
} else {
$this->table['fields'][$this->field_name] = $this->field;
}
return MDB2_OK;
}
function fixTableIndexKeys($index)
{
$this->index = array(
'was' => '',
'unique' =>'',
'primary' => '',
'fields' => array()
);
if (!empty($index['name'])) {
$this->index_name = $index['name'];
} else {
$this->index_name = '';
}
if (!empty($index['was'])) {
$this->index['was'] = $index['was'];
}
if (!empty($index['unique'])) {
$this->index['unique'] = $index['unique'];
}
if (!empty($index['primary'])) {
$this->index['primary'] = $index['primary'];
}
if (!empty($index['field'])) {
foreach ($index['field'] as $field) {
if (!empty($field['name'])) {
$this->field_name = $field['name'];
} else {
$this->field_name = '';
}
$this->field = array(
'sorting' => '',
'length' => ''
);
if (!empty($field['sorting'])) {
$this->field['sorting'] = $field['sorting'];
}
if (!empty($field['length'])) {
$this->field['length'] = $field['length'];
}
$result = $this->val->validateIndexField($this->index['fields'], $this->field, $this->field_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
}
$this->index['fields'][$this->field_name] = $this->field;
}
}
$result = $this->val->validateIndex($this->table['indexes'], $this->index, $this->index_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
} else {
$this->table['indexes'][$this->index_name] = $this->index;
}
return MDB2_OK;
}
function fixTableConstraintKeys($constraint)
{
$this->constraint = array(
'was' => '',
'match' => '',
'ondelete' => '',
'onupdate' => '',
'deferrable' => '',
'initiallydeferred' => '',
'foreign' => true,
'fields' => array(),
'references' => array('table' => '', 'fields' => array())
);
if (!empty($constraint['name'])) {
$this->constraint_name = $constraint['name'];
} else {
$this->constraint_name = '';
}
if (!empty($constraint['was'])) {
$this->constraint['was'] = $constraint['was'];
}
if (!empty($constraint['match'])) {
$this->constraint['match'] = $constraint['match'];
}
if (!empty($constraint['ondelete'])) {
$this->constraint['ondelete'] = $constraint['ondelete'];
}
if (!empty($constraint['onupdate'])) {
$this->constraint['onupdate'] = $constraint['onupdate'];
}
if (!empty($constraint['deferrable'])) {
$this->constraint['deferrable'] = $constraint['deferrable'];
}
if (!empty($constraint['initiallydeferred'])) {
$this->constraint['initiallydeferred'] = $constraint['initiallydeferred'];
}
if (!empty($constraint['field']) && is_array($constraint['field'])) {
foreach ($constraint['field'] as $field) {
$result = $this->val->validateConstraintField($this->constraint['fields'], $field);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
}
$this->constraint['fields'][$field] = '';
}
}
if (!empty($constraint['references']) && is_array($constraint['references'])) {
/**
* As we forced 'table' to be enumerated
* we have to fix it on the foreign-references-table context
*/
if (!empty($constraint['references']['table']) && is_array($constraint['references']['table'])) {
$this->constraint['references']['table'] = $constraint['references']['table'][0];
}
if (!empty($constraint['references']['field']) && is_array($constraint['references']['field'])) {
foreach ($constraint['references']['field'] as $field) {
$result = $this->val->validateConstraintReferencedField($this->constraint['references']['fields'], $field);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
}
$this->constraint['references']['fields'][$field] = '';
}
}
}
$result = $this->val->validateConstraint($this->table['constraints'], $this->constraint, $this->constraint_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
} else {
$this->table['constraints'][$this->constraint_name] = $this->constraint;
}
return MDB2_OK;
}
function fixTableInitializationKeys($element, $type = '')
{
if (!empty($element['select']) && is_array($element['select'])) {
$this->fixTableInitializationDataKeys($element['select']);
$this->init = array( 'select' => $this->init );
} else {
$this->fixTableInitializationDataKeys($element);
}
$this->table['initialization'][] = array( 'type' => $type, 'data' => $this->init );
}
function fixTableInitializationDataKeys($element)
{
$this->init = array();
if (!empty($element['field']) && is_array($element['field'])) {
foreach ($element['field'] as $field) {
$name = $field['name'];
unset($field['name']);
$this->setExpression($field);
$this->init['field'][] = array( 'name' => $name, 'group' => $field );
}
}
/**
* As we forced 'table' to be enumerated
* we have to fix it on the insert-select context
*/
if (!empty($element['table']) && is_array($element['table'])) {
$this->init['table'] = $element['table'][0];
}
if (!empty($element['where']) && is_array($element['where'])) {
$this->init['where'] = $element['where'];
$this->setExpression($this->init['where']);
}
}
function setExpression(&$arr)
{
$element = each($arr);
$arr = array( 'type' => $element['key'] );
$element = $element['value'];
switch ($arr['type']) {
case 'null':
break;
case 'value':
case 'column':
$arr['data'] = $element;
break;
case 'function':
if (!empty($element)
&& is_array($element)
) {
$arr['data'] = array( 'name' => $element['name'] );
unset($element['name']);
foreach ($element as $type => $value) {
if (!empty($value)) {
if (is_array($value)) {
foreach ($value as $argument) {
$argument = array( $type => $argument );
$this->setExpression($argument);
$arr['data']['arguments'][] = $argument;
}
} else {
$arr['data']['arguments'][] = array( 'type' => $type, 'data' => $value );
}
}
}
}
break;
case 'expression':
$arr['data'] = array( 'operants' => array(), 'operator' => $element['operator'] );
unset($element['operator']);
foreach ($element as $k => $v) {
$argument = array( $k => $v );
$this->setExpression($argument);
$arr['data']['operants'][] = $argument;
}
break;
}
}
function fixSequenceKeys($sequence)
{
$this->sequence = array(
'was' => '',
'start' => '',
'description' => '',
'comments' => '',
'on' => array('table' => '', 'field' => '')
);
if (!empty($sequence['name'])) {
$this->sequence_name = $sequence['name'];
} else {
$this->sequence_name = '';
}
if (!empty($sequence['was'])) {
$this->sequence['was'] = $sequence['was'];
}
if (!empty($sequence['start'])) {
$this->sequence['start'] = $sequence['start'];
}
if (!empty($sequence['description'])) {
$this->sequence['description'] = $sequence['description'];
}
if (!empty($sequence['comments'])) {
$this->sequence['comments'] = $sequence['comments'];
}
if (!empty($sequence['on']) && is_array($sequence['on'])) {
/**
* As we forced 'table' to be enumerated
* we have to fix it on the sequence-on-table context
*/
if (!empty($sequence['on']['table']) && is_array($sequence['on']['table'])) {
$this->sequence['on']['table'] = $sequence['on']['table'][0];
}
/**
* As we forced 'field' to be enumerated
* we have to fix it on the sequence-on-field context
*/
if (!empty($sequence['on']['field']) && is_array($sequence['on']['field'])) {
$this->sequence['on']['field'] = $sequence['on']['field'][0];
}
}
$result = $this->val->validateSequence($this->database_definition['sequences'], $this->sequence, $this->sequence_name);
if (PEAR::isError($result)) {
return $this->raiseError($result->getUserinfo());
} else {
$this->database_definition['sequences'][$this->sequence_name] = $this->sequence;
}
return MDB2_OK;
}
function &raiseError($msg = null, $ecode = MDB2_SCHEMA_ERROR_PARSE)
{
if (is_null($this->error)) {
$error = 'Parser error: '.$msg."\n";
$this->error =& MDB2_Schema::raiseError($ecode, null, null, $error);
}
return $this->error;
}
}
?>