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<?php
// +---------------------------------------------------------------------+
// | PHP Version 4 |
// +---------------------------------------------------------------------+
// | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group |
// +---------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +---------------------------------------------------------------------+
// | Author: Bertrand Mansion <bmansion@mamasam.com> |
// +---------------------------------------------------------------------+
//
// $Id: Container.php 306597 2010-12-24 05:11:09Z aharvey $
require_once 'Config.php';
/**
* Interface for Config containers
*
* @author Bertrand Mansion <bmansion@mamasam.com>
* @package Config
*/
class Config_Container {
/**
* Container object type
* Ex: section, directive, comment, blank
* @var string
*/
var $type;
/**
* Container object name
* @var string
*/
var $name = '';
/**
* Container object content
* @var string
*/
var $content = '';
/**
* Container object children
* @var array
*/
var $children = array();
/**
* Reference to container object's parent
* @var object
*/
var $parent;
/**
* Array of attributes for this item
* @var array
*/
var $attributes;
/**
* Unique id to differenciate nodes
*
* This is used to compare nodes
* Will not be needed anymore when this class will use ZendEngine 2
*
* @var int
*/
var $_id;
/**
* Constructor
*
* @param string $type Type of container object
* @param string $name Name of container object
* @param string $content Content of container object
* @param array $attributes Array of attributes for container object
*/
function Config_Container($type = 'section', $name = '', $content = '', $attributes = null)
{
$this->type = $type;
$this->name = $name;
$this->content = $content;
$this->attributes = $attributes;
$this->parent = null;
if (version_compare(PHP_VERSION, '5.0.0', 'gt')) {
$this->_id = uniqid($name.$type, true);
} else {
$this->_id = uniqid(substr($name.$type, 0, 114), true);
}
} // end constructor
/**
* Create a child for this item.
* @param string $type type of item: directive, section, comment, blank...
* @param mixed $item item name
* @param string $content item content
* @param array $attributes item attributes
* @param string $where choose a position 'bottom', 'top', 'after', 'before'
* @param object $target needed if you choose 'before' or 'after' for where
* @return object reference to new item or Pear_Error
*/
function &createItem($type, $name, $content, $attributes = null, $where = 'bottom', $target = null)
{
$item = new Config_Container($type, $name, $content, $attributes);
$result =& $this->addItem($item, $where, $target);
return $result;
} // end func &createItem
/**
* Adds an item to this item.
* @param object $item a container object
* @param string $where choose a position 'bottom', 'top', 'after', 'before'
* @param object $target needed if you choose 'before' or 'after' in $where
* @return mixed reference to added container on success, Pear_Error on error
*/
function &addItem(&$item, $where = 'bottom', $target = null)
{
if ($this->type != 'section') {
return PEAR::raiseError('Config_Container::addItem must be called on a section type object.', null, PEAR_ERROR_RETURN);
}
if (is_null($target)) {
$target =& $this;
}
if (strtolower(get_class($target)) != 'config_container') {
return PEAR::raiseError('Target must be a Config_Container object in Config_Container::addItem.', null, PEAR_ERROR_RETURN);
}
switch ($where) {
case 'before':
$index = $target->getItemIndex();
break;
case 'after':
$index = $target->getItemIndex()+1;
break;
case 'top':
$index = 0;
break;
case 'bottom':
$index = -1;
break;
default:
return PEAR::raiseError('Use only top, bottom, before or after in Config_Container::addItem.', null, PEAR_ERROR_RETURN);
}
if (isset($index) && $index >= 0) {
array_splice($this->children, $index, 0, 'tmp');
} else {
$index = count($this->children);
}
$this->children[$index] =& $item;
$this->children[$index]->parent =& $this;
return $item;
} // end func addItem
/**
* Adds a comment to this item.
* This is a helper method that calls createItem
*
* @param string $content Object content
* @param string $where Position : 'top', 'bottom', 'before', 'after'
* @param object $target Needed when $where is 'before' or 'after'
* @return object reference to new item or Pear_Error
*/
function &createComment($content = '', $where = 'bottom', $target = null)
{
return $this->createItem('comment', null, $content, null, $where, $target);
} // end func &createComment
/**
* Adds a blank line to this item.
* This is a helper method that calls createItem
*
* @return object reference to new item or Pear_Error
*/
function &createBlank($where = 'bottom', $target = null)
{
return $this->createItem('blank', null, null, null, $where, $target);
} // end func &createBlank
/**
* Adds a directive to this item.
* This is a helper method that calls createItem
*
* @param string $name Name of new directive
* @param string $content Content of new directive
* @param mixed $attributes Directive attributes
* @param string $where Position : 'top', 'bottom', 'before', 'after'
* @param object $target Needed when $where is 'before' or 'after'
* @return object reference to new item or Pear_Error
*/
function &createDirective($name, $content, $attributes = null, $where = 'bottom', $target = null)
{
return $this->createItem('directive', $name, $content, $attributes, $where, $target);
} // end func &createDirective
/**
* Adds a section to this item.
*
* This is a helper method that calls createItem
* If the section already exists, it won't create a new one.
* It will return reference to existing item.
*
* @param string $name Name of new section
* @param array $attributes Section attributes
* @param string $where Position : 'top', 'bottom', 'before', 'after'
* @param object $target Needed when $where is 'before' or 'after'
* @return object reference to new item or Pear_Error
*/
function &createSection($name, $attributes = null, $where = 'bottom', $target = null)
{
return $this->createItem('section', $name, null, $attributes, $where, $target);
} // end func &createSection
/**
* Tries to find the specified item(s) and returns the objects.
*
* Examples:
* $directives =& $obj->getItem('directive');
* $directive_bar_4 =& $obj->getItem('directive', 'bar', null, 4);
* $section_foo =& $obj->getItem('section', 'foo');
*
* This method can only be called on an object of type 'section'.
* Note that root is a section.
* This method is not recursive and tries to keep the current structure.
* For a deeper search, use searchPath()
*
* @param string $type Type of item: directive, section, comment, blank...
* @param mixed $name Item name
* @param mixed $content Find item with this content
* @param array $attributes Find item with attribute set to the given value
* @param int $index Index of the item in the returned object list. If it is not set, will try to return the last item with this name.
* @return mixed reference to item found or false when not found
* @see &searchPath()
*/
function &getItem($type = null, $name = null, $content = null, $attributes = null, $index = -1)
{
if ($this->type != 'section') {
return PEAR::raiseError('Config_Container::getItem must be called on a section type object.', null, PEAR_ERROR_RETURN);
}
if (!is_null($type)) {
$testFields[] = 'type';
}
if (!is_null($name)) {
$testFields[] = 'name';
}
if (!is_null($content)) {
$testFields[] = 'content';
}
if (!is_null($attributes) && is_array($attributes)) {
$testFields[] = 'attributes';
}
$itemsArr = array();
$fieldsToMatch = count($testFields);
for ($i = 0, $count = count($this->children); $i < $count; $i++) {
$match = 0;
reset($testFields);
foreach ($testFields as $field) {
if ($field != 'attributes') {
if ($this->children[$i]->$field == ${$field}) {
$match++;
}
} else {
// Look for attributes in array
$attrToMatch = count($attributes);
$attrMatch = 0;
foreach ($attributes as $key => $value) {
if (isset($this->children[$i]->attributes[$key]) &&
$this->children[$i]->attributes[$key] == $value) {
$attrMatch++;
}
}
if ($attrMatch == $attrToMatch) {
$match++;
}
}
}
if ($match == $fieldsToMatch) {
$itemsArr[] =& $this->children[$i];
}
}
if ($index >= 0) {
if (isset($itemsArr[$index])) {
return $itemsArr[$index];
} else {
$return = false;
return $return;
}
} else {
if ($count = count($itemsArr)) {
return $itemsArr[$count-1];
} else {
$return = false;
return $return;
}
}
} // end func &getItem
/**
* Finds a node using XPATH like format.
*
* The search format is an array:
* array(item1, item2, item3, ...)
*
* Each item can be defined as the following:
* item = 'string' : will match the container named 'string'
* item = array('string', array('name' => 'xyz'))
* will match the container name 'string' whose attribute name is equal to "xyz"
* For example : <string name="xyz">
*
* @param mixed Search path and attributes
*
* @return mixed Config_Container object, array of Config_Container objects or false on failure.
* @access public
*/
function &searchPath($args)
{
if ($this->type != 'section') {
return PEAR::raiseError('Config_Container::searchPath must be called on a section type object.', null, PEAR_ERROR_RETURN);
}
$arg = array_shift($args);
if (is_array($arg)) {
$name = $arg[0];
$attributes = $arg[1];
} else {
$name = $arg;
$attributes = null;
}
// find all the matches for first..
$match =& $this->getItem(null, $name, null, $attributes);
if (!$match) {
$return = false;
return $return;
}
if (!empty($args)) {
return $match->searchPath($args);
}
return $match;
} // end func &searchPath
/**
* Return a child directive's content.
*
* This method can use two different search approach, depending on
* the parameter it is given. If the parameter is an array, it will use
* the {@link Config_Container::searchPath()} method. If it is a string,
* it will use the {@link Config_Container::getItem()} method.
*
* Example:
* <code>
* require_once 'Config.php';
* $ini = new Config();
* $conf =& $ini->parseConfig('/path/to/config.ini', 'inicommented');
*
* // Will return the value found at :
* // [Database]
* // host=localhost
* echo $conf->directiveContent(array('Database', 'host')));
*
* // Will return the value found at :
* // date="dec-2004"
* echo $conf->directiveContent('date');
*
* </code>
*
* @param mixed Search path and attributes or a directive name
* @param int Index of the item in the returned directive list.
* Eventually used if args is a string.
*
* @return mixed Content of directive or false if not found.
* @access public
*/
function directiveContent($args, $index = -1)
{
if (is_array($args)) {
$item =& $this->searchPath($args);
} else {
$item =& $this->getItem('directive', $args, null, null, $index);
}
if ($item) {
return $item->getContent();
}
return false;
} // end func getDirectiveContent
/**
* Returns how many children this container has
*
* @param string $type type of children counted
* @param string $name name of children counted
* @return int number of children found
*/
function countChildren($type = null, $name = null)
{
if (is_null($type) && is_null($name)) {
return count($this->children);
}
$count = 0;
if (isset($name) && isset($type)) {
for ($i = 0, $children = count($this->children); $i < $children; $i++) {
if ($this->children[$i]->name === $name &&
$this->children[$i]->type == $type) {
$count++;
}
}
return $count;
}
if (isset($type)) {
for ($i = 0, $children = count($this->children); $i < $children; $i++) {
if ($this->children[$i]->type == $type) {
$count++;
}
}
return $count;
}
if (isset($name)) {
// Some directives can have the same name
for ($i = 0, $children = count($this->children); $i < $children; $i++) {
if ($this->children[$i]->name === $name) {
$count++;
}
}
return $count;
}
} // end func &countChildren
/**
* Deletes an item (section, directive, comment...) from the current object
* TODO: recursive remove in sub-sections
* @return mixed true if object was removed, false if not, or PEAR_Error if root
*/
function removeItem()
{
if ($this->isRoot()) {
return PEAR::raiseError('Cannot remove root item in Config_Container::removeItem.', null, PEAR_ERROR_RETURN);
}
$index = $this->getItemIndex();
if (!is_null($index)) {
array_splice($this->parent->children, $index, 1);
return true;
}
return false;
} // end func removeItem
/**
* Returns the item index in its parent children array.
* @return int returns int or null if root object
*/
function getItemIndex()
{
if (is_object($this->parent)) {
// This will be optimized with Zend Engine 2
$pchildren =& $this->parent->children;
for ($i = 0, $count = count($pchildren); $i < $count; $i++) {
if ($pchildren[$i]->_id == $this->_id) {
return $i;
}
}
}
return;
} // end func getItemIndex
/**
* Returns the item rank in its parent children array
* according to other items with same type and name.
* @param bool count items differently by type
* @return int returns int or null if root object
*/
function getItemPosition($byType = true)
{
if (is_object($this->parent)) {
$pchildren =& $this->parent->children;
for ($i = 0, $count = count($pchildren); $i < $count; $i++) {
if ($pchildren[$i]->name == $this->name) {
if ($byType == true) {
if ($pchildren[$i]->type == $this->type) {
$obj[] =& $pchildren[$i];
}
} else {
$obj[] =& $pchildren[$i];
}
}
}
for ($i = 0, $count = count($obj); $i < $count; $i++) {
if ($obj[$i]->_id == $this->_id) {
return $i;
}
}
}
return;
} // end func getItemPosition
/**
* Returns the item parent object.
* @return object returns reference to parent object or null if root object
*/
function &getParent()
{
return $this->parent;
} // end func &getParent
/**
* Returns the item parent object.
* @return mixed returns reference to child object or false if child does not exist
*/
function &getChild($index = 0)
{
if (!empty($this->children[$index])) {
return $this->children[$index];
} else {
return false;
}
} // end func &getChild
/**
* Set this item's name.
* @return void
*/
function setName($name)
{
$this->name = $name;
} // end func setName
/**
* Get this item's name.
* @return string item's name
*/
function getName()
{
return $this->name;
} // end func getName
/**
* Set this item's content.
* @return void
*/
function setContent($content)
{
$this->content = $content;
} // end func setContent
/**
* Get this item's content.
* @return string item's content
*/
function getContent()
{
return $this->content;
} // end func getContent
/**
* Set this item's type.
* @return void
*/
function setType($type)
{
$this->type = $type;
} // end func setType
/**
* Get this item's type.
* @return string item's type
*/
function getType()
{
return $this->type;
} // end func getType
/**
* Set this item's attributes.
* @param array $attributes Array of attributes
* @return void
*/
function setAttributes($attributes)
{
$this->attributes = $attributes;
} // end func setAttributes
/**
* Set this item's attributes.
* @param array $attributes Array of attributes
* @return void
*/
function updateAttributes($attributes)
{
if (is_array($attributes)) {
foreach ($attributes as $key => $value) {
$this->attributes[$key] = $value;
}
}
} // end func updateAttributes
/**
* Get this item's attributes.
* @return array item's attributes
*/
function getAttributes()
{
return $this->attributes;
} // end func getAttributes
/**
* Get one attribute value of this item
* @param string $attribute Attribute key
* @return mixed item's attribute value
*/
function getAttribute($attribute)
{
if (isset($this->attributes[$attribute])) {
return $this->attributes[$attribute];
}
return null;
} // end func getAttribute
/**
* Set a children directive content.
* This is an helper method calling getItem and addItem or setContent for you.
* If the directive does not exist, it will be created at the bottom.
*
* @param string $name Name of the directive to look for
* @param mixed $content New content
* @param int $index Index of the directive to set,
* in case there are more than one directive
* with the same name
* @return object newly set directive
*/
function &setDirective($name, $content, $index = -1)
{
$item =& $this->getItem('directive', $name, null, null, $index);
if ($item === false || PEAR::isError($item)) {
// Directive does not exist, will create one
unset($item);
return $this->createDirective($name, $content, null);
} else {
// Change existing directive value
$item->setContent($content);
return $item;
}
} // end func setDirective
/**
* Is this item root, in a config container object
* @return bool true if item is root
*/
function isRoot()
{
if (is_null($this->parent)) {
return true;
}
return false;
} // end func isRoot
/**
* Call the toString methods in the container plugin
* @param string $configType Type of configuration used to generate the string
* @param array $options Specify special options used by the parser
* @return mixed true on success or PEAR_ERROR
*/
function toString($configType, $options = array())
{
$configType = strtolower($configType);
if (!isset($GLOBALS['CONFIG_TYPES'][$configType])) {
return PEAR::raiseError("Configuration type '$configType' is not registered in Config_Container::toString.", null, PEAR_ERROR_RETURN);
}
$includeFile = $GLOBALS['CONFIG_TYPES'][$configType][0];
$className = $GLOBALS['CONFIG_TYPES'][$configType][1];
include_once($includeFile);
$renderer = new $className($options);
return $renderer->toString($this);
} // end func toString
/**
* Returns a key/value pair array of the container and its children.
*
* Format : section[directive][index] = value
* If the container has attributes, it will use '@' and '#'
* index is here because multiple directives can have the same name.
*
* @param bool $useAttr Whether to return the attributes too
* @return array
*/
function toArray($useAttr = true)
{
$array[$this->name] = array();
switch ($this->type) {
case 'directive':
if ($useAttr && count($this->attributes) > 0) {
$array[$this->name]['#'] = $this->content;
$array[$this->name]['@'] = $this->attributes;
} else {
$array[$this->name] = $this->content;
}
break;
case 'section':
if ($useAttr && count($this->attributes) > 0) {
$array[$this->name]['@'] = $this->attributes;
}
if ($count = count($this->children)) {
for ($i = 0; $i < $count; $i++) {
$newArr = $this->children[$i]->toArray($useAttr);
if (!is_null($newArr)) {
foreach ($newArr as $key => $value) {
if (isset($array[$this->name][$key])) {
// duplicate name/type
if (!is_array($array[$this->name][$key]) ||
!isset($array[$this->name][$key][0])) {
$old = $array[$this->name][$key];
unset($array[$this->name][$key]);
$array[$this->name][$key][0] = $old;
}
$array[$this->name][$key][] = $value;
} else {
$array[$this->name][$key] = $value;
}
}
}
}
}
break;
default:
return null;
}
return $array;
} // end func toArray
/**
* Writes the configuration to a file
*
* @param mixed $datasrc Info on datasource such as path to the configuraton file or dsn...
* @param string $configType Type of configuration
* @param array $options Options for writer
* @access public
* @return mixed true on success or PEAR_ERROR
*/
function writeDatasrc($datasrc, $configType, $options = array())
{
$configType = strtolower($configType);
if (!isset($GLOBALS['CONFIG_TYPES'][$configType])) {
return PEAR::raiseError("Configuration type '$configType' is not registered in Config_Container::writeDatasrc.", null, PEAR_ERROR_RETURN);
}
$includeFile = $GLOBALS['CONFIG_TYPES'][$configType][0];
$className = $GLOBALS['CONFIG_TYPES'][$configType][1];
include_once($includeFile);
$writeMethodName = (version_compare(phpversion(), '5', '<')) ? 'writedatasrc' : 'writeDatasrc';
if (in_array($writeMethodName, get_class_methods($className))) {
$writer = new $className($options);
return $writer->writeDatasrc($datasrc, $this);
}
// Default behaviour
$fp = @fopen($datasrc, 'w');
if ($fp) {
$string = $this->toString($configType, $options);
$len = strlen($string);
@flock($fp, LOCK_EX);
@fwrite($fp, $string, $len);
@flock($fp, LOCK_UN);
@fclose($fp);
return true;
} else {
return PEAR::raiseError('Cannot open datasource for writing.', 1, PEAR_ERROR_RETURN);
}
} // end func writeDatasrc
} // end class Config_Container
?>
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