icingaweb2/library/Icinga/User/Preferences/Store/IniStore.php

147 lines
4.4 KiB
PHP

<?php
// {{{ICINGA_LICENSE_HEADER}}}
// {{{ICINGA_LICENSE_HEADER}}}
namespace Icinga\User\Preferences\Store;
use Zend_Config;
use Icinga\Application\Config as IcingaConfig;
use Icinga\Config\PreservingIniWriter;
use Icinga\Exception\NotReadableError;
use Icinga\Exception\NotWritableError;
use Icinga\User;
use Icinga\User\Preferences\PreferencesStore;
use Icinga\Util\File;
/**
* Load and save user preferences from and to INI files
*
* Usage example:
* <code>
* <?php
*
* use Zend_Config;
* use Icinga\User\Preferences;
* use Icinga\User\Preferences\PreferencesStore;
* use Icinga\User\Preferences\Store\IniStore;
*
* // Create the store from the factory (preferred approach)
* $store = new PreferencesStore(
* new Zend_Config(
* 'type' => 'ini',
* 'configPath' => '/path/to/preferences'
* ),
* $user // Instance of \Icinga\User
* );
*
* // Create the store directly
* $store = new IniStore(
* new Zend_Config(
* 'configPath' => '/path/to/preferences'
* ),
* $user // Instance of \Icinga\User
* );
*
* $preferences = new Preferences($store->load());
* $preferences->aPreference = 'value';
* $store->save($preferences);
* </code>
*/
class IniStore extends PreferencesStore
{
/**
* Preferences file of the given user
*
* @var string
*/
private $preferencesFile;
/**
* Stored preferences
*
* @var array
*/
private $preferences;
/**
* Writer which stores the preferences
*
* @var PreservingIniWriter
*/
private $writer;
/**
* Initialize the store
*
* @throws NotReadableError When the preferences INI file of the given user is not readable
*/
public function init()
{
$this->preferencesFile = sprintf(
'%s/%s.ini',
IcingaConfig::resolvePath($this->getStoreConfig()->configPath),
$this->getUser()->getUsername()
);
if (file_exists($this->preferencesFile)) {
if (!is_readable($this->preferencesFile)) {
throw new NotReadableError('Preferences INI file ' . $this->preferencesFile . ' for user '
. $this->getUser()->getUsername() . ' is not readable');
} else {
$this->preferences = parse_ini_file($this->preferencesFile);
}
}
}
/**
* Load preferences from source
*
* @return array
*/
public function load()
{
return $this->preferences !== null ? $this->preferences : array();
}
/**
* Create, update and delete the given preferences
*
* @param array $newPreferences Key-value array of preferences to create
* @param array $updatedPreferences Key-value array of preferences to update
* @param array $deletedPreferences An array of preference names to delete
*
* @throws NotWritableError When either the path to the preferences INI files is not writable or the
* preferences INI file for the given user is not writable
*/
public function cud($newPreferences, $updatedPreferences, $deletedPreferences)
{
if ($this->preferences === null) {
// Preferences INI file does not yet exist
if (!is_writable($this->getStoreConfig()->configPath)) {
throw new NotWritableError('Path to the preferences INI files ' . $this->getStoreConfig()->configPath
. ' is not writable');
}
File::create($this->preferencesFile);
$this->preferences = array();
}
if (!is_writable($this->preferencesFile)) {
throw new NotWritableError('Preferences INI file ' . $this->preferencesFile . ' for user '
. $this->getUser()->getUsername() . ' is not writable');
}
foreach ($newPreferences as $name => $value) {
$this->preferences[$name] = $value;
}
foreach ($updatedPreferences as $name => $value) {
$this->preferences[$name] = $value;
}
foreach ($deletedPreferences as $name) {
unset($this->preferences[$name]);
}
if ($this->writer === null) {
$this->writer = new PreservingIniWriter(
array('config' => new Zend_Config($this->preferences), 'filename' => $this->preferencesFile)
);
}
$this->writer->write();
}
}