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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Forms\Config\Resource;
use Icinga\Application\Icinga;
use Icinga\Data\ConfigObject;
use Icinga\Forms\Config\ResourceConfigForm;
use Icinga\Web\Form;
use Icinga\Util\File;
use Zend_Validate_Callback;
/**
* Form class for adding/modifying ssh identity resources
*/
class SshResourceForm extends Form
{
/**
* Initialize this form
*/
public function init()
{
$this->setName('form_config_resource_ssh');
}
/**
* @see Form::createElements()
*/
public function createElements(array $formData)
{
$this->addElement(
'text',
'name',
array(
'required' => true,
'label' => $this->translate('Resource Name'),
'description' => $this->translate('The unique name of this resource')
)
);
$this->addElement(
'text',
'user',
array(
'required' => true,
'label' => $this->translate('User'),
'description' => $this->translate(
'User to log in as on the remote Icinga instance. Please note that key-based SSH login must be'
. ' possible for this user'
)
)
);
if ($this->getRequest()->getActionName() != 'editresource') {
$callbackValidator = new Zend_Validate_Callback(function ($value) {
if (substr(ltrim($value), 0, 7) === 'file://'
|| openssl_pkey_get_private($value) === false
) {
return false;
}
return true;
});
$callbackValidator->setMessage(
$this->translate('The given SSH key is invalid'),
Zend_Validate_Callback::INVALID_VALUE
);
$this->addElement(
'textarea',
'private_key',
array(
'required' => true,
'label' => $this->translate('Private Key'),
'description' => $this->translate('The private key which will be used for the SSH connections'),
'class' => 'resource ssh-identity',
'validators' => array($callbackValidator)
)
);
} else {
$resourceName = $formData['name'];
$this->addElement(
'note',
'private_key_note',
array(
'escape' => false,
'label' => $this->translate('Private Key'),
'value' => sprintf(
'<a href="%1$s" data-base-target="_next" title="%2$s" aria-label="%2$s">%3$s</a>',
$this->getView()->url('config/removeresource', array('resource' => $resourceName)),
$this->getView()->escape(sprintf($this->translate(
'Remove the %s resource'
), $resourceName)),
$this->translate('To modify the private key you must recreate this resource.')
)
)
);
}
return $this;
}
/**
* Remove the assigned key to the resource
*
* @param ConfigObject $config
*
* @return bool
*/
public static function beforeRemove(ConfigObject $config)
{
$file = $config->private_key;
if (file_exists($file)) {
unlink($file);
return true;
}
return false;
}
/**
* Creates the assigned key to the resource
*
* @param ResourceConfigForm $form
*
* @return bool
*/
public static function beforeAdd(ResourceConfigForm $form)
{
$configDir = Icinga::app()->getConfigDir();
$user = $form->getElement('user')->getValue();
$filePath = join(DIRECTORY_SEPARATOR, [$configDir, 'ssh', sha1($user)]);
if (! file_exists($filePath)) {
$file = File::create($filePath, 0600);
} else {
$form->error(
sprintf($form->translate('The private key for the user "%s" already exists.'), $user)
);
return false;
}
$file->fwrite($form->getElement('private_key')->getValue());
$form->getElement('private_key')->setValue($filePath);
return true;
}
}
|
