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Ensure that the ini writer deletes properties properly

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The fix for #5958 introduced with commit 6aaff6b3 caused the property
deletion of the PreservingIniWriter be even more faulty than before. The
actual fix for this issue is an improved procedure for how properties are
deleted as the initial implementation suffered from a few
misunderstandings in how properties in Zend_Ini files need to be handled.

fixes #6599
fixes #6601
fixes #6600
fixes #6598
fixes #6614
This commit is contained in:
Johannes Meyer 2014-07-01 14:55:45 +02:00
parent 87e72961e8
commit 920c027990
1 changed files with 34 additions and 21 deletions
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55
library/Icinga/Config/PreservingIniWriter.php
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@ -177,29 +177,42 @@ class PreservingIniWriter extends Zend_Config_Writer_FileAbstract
// Iterate over all properties in the old configuration file and search for deleted properties
foreach ($oldconfig as $key => $value) {
$nextParents = array_merge($parents, array($key));
$newvalue = $newconfig->get($key);
$keyIdentifier = empty($parents) ? array($key) : array_slice($nextParents, 1, null, true);
if ($newvalue === null) {
if ($value instanceof Zend_Config) {
// The deleted value is a nested Zend_Config, handle it recursively
$this->diffConfigs($value, new Zend_Config(array()), $editor, $nextParents);
if ($section === null) {
$editor->removeSection($key);
}
} else {
// The deleted value is a plain value, use the editor to delete it
if (is_numeric($key)) {
$editor->resetArrayElement($keyIdentifier, $section);
} elseif (!empty($parents)) {
// Drop nested properties, fixes #5958
$editor->resetArrayElement($nextParents, $section);
} else {
$editor->reset($keyIdentifier, $section);
}
if ($newconfig->get($key) === null) {
$nextParents = array_merge($parents, array($key));
$keyIdentifier = empty($parents) ? array($key) : array_slice($nextParents, 1, null, true);
foreach ($this->getPropertyIdentifiers($value, $keyIdentifier) as $propertyIdentifier) {
$editor->reset($propertyIdentifier, $section);
}
}
}
}
/**
* Return all possible combinations of property identifiers for the given value
*
* @param mixed $value The value to return all combinations for
* @param array $key The root property identifier, if any
*
* @return array All property combinations that are possible
*
* @todo Cannot handle array properties yet (e.g. a.b[]='c')
*/
protected function getPropertyIdentifiers($value, array $key = null)
{
$combinations = array();
$rootProperty = $key !== null ? $key : array();
if ($value instanceof Zend_Config) {
foreach ($value as $subProperty => $subValue) {
$combinations = array_merge(
$combinations,
$this->getPropertyIdentifiers($subValue, array_merge($rootProperty, array($subProperty)))
);
}
} elseif (is_string($value)) {
$combinations[] = $rootProperty;
}
return $combinations;
}
}