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<?php
namespace Kanboard\Core\Plugin;
use ZipArchive;
use Kanboard\Core\Tool;
/**
* Class Installer
*
* @package Kanboard\Core\Plugin
* @author Frederic Guillot
*/
class Installer extends \Kanboard\Core\Base
{
/**
* Return true if Kanboard is configured to install plugins
*
* @static
* @access public
* @return bool
*/
public static function isConfigured()
{
return PLUGIN_INSTALLER && is_writable(PLUGINS_DIR) && extension_loaded('zip');
}
/**
* Install a plugin
*
* @access public
* @param string $archiveUrl
* @throws PluginInstallerException
*/
public function install($archiveUrl)
{
$zip = $this->downloadPluginArchive($archiveUrl);
if (! $zip->extractTo(PLUGINS_DIR)) {
$this->cleanupArchive($zip);
throw new PluginInstallerException(t('Unable to extract plugin archive.'));
}
$this->cleanupArchive($zip);
}
/**
* Uninstall a plugin
*
* @access public
* @param string $pluginId
* @throws PluginInstallerException
*/
public function uninstall($pluginId)
{
$pluginFolder = PLUGINS_DIR.DIRECTORY_SEPARATOR.basename($pluginId);
if (! file_exists($pluginFolder)) {
throw new PluginInstallerException(t('Plugin not found.'));
}
if (! is_writable($pluginFolder)) {
throw new PluginInstallerException(e('You don\'t have the permission to remove this plugin.'));
}
Tool::removeAllFiles($pluginFolder);
}
/**
* Update a plugin
*
* @access public
* @param string $archiveUrl
* @throws PluginInstallerException
*/
public function update($archiveUrl)
{
$zip = $this->downloadPluginArchive($archiveUrl);
$firstEntry = $zip->statIndex(0);
$this->uninstall($firstEntry['name']);
if (! $zip->extractTo(PLUGINS_DIR)) {
$this->cleanupArchive($zip);
throw new PluginInstallerException(t('Unable to extract plugin archive.'));
}
$this->cleanupArchive($zip);
}
/**
* Download archive from URL
*
* @access protected
* @param string $archiveUrl
* @return ZipArchive
* @throws PluginInstallerException
*/
protected function downloadPluginArchive($archiveUrl)
{
$zip = new ZipArchive();
$archiveData = $this->httpClient->get($archiveUrl);
$archiveFile = tempnam(sys_get_temp_dir(), 'kb_plugin');
if (empty($archiveData)) {
unlink($archiveFile);
throw new PluginInstallerException(t('Unable to download plugin archive.'));
}
if (file_put_contents($archiveFile, $archiveData) === false) {
unlink($archiveFile);
throw new PluginInstallerException(t('Unable to write temporary file for plugin.'));
}
if ($zip->open($archiveFile) !== true) {
unlink($archiveFile);
throw new PluginInstallerException(t('Unable to open plugin archive.'));
}
if ($zip->numFiles === 0) {
unlink($archiveFile);
throw new PluginInstallerException(t('There is no file in the plugin archive.'));
}
return $zip;
}
/**
* Remove archive file
*
* @access protected
* @param ZipArchive $zip
*/
protected function cleanupArchive(ZipArchive $zip)
{
unlink($zip->filename);
$zip->close();
}
}
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