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<?php
/**
* Class representing a parsed pxelinux menu entry. Members
* will be set to their annotated type if present or
* be null otherwise, except for present-only boolean
* options, which will default to false.
*/
class PxeSection
{
/**
* @var ?string label used internally in PXEMENU definition to address this entry
*/
public $label;
/**
* @var string MENU LABEL of PXEMENU - title of entry displayed to the user
*/
public $title;
/**
* @var int Number of spaces to prefix the title with
*/
public $indent;
/**
* @var string help text to display when the entry is highlighted
*/
public $helpText;
/**
* @var string Kernel to load
*/
public $kernel;
/**
* @var string|string[] initrd to load for the kernel.
* If mangle() has been called this will be an array,
* otherwise it's a comma separated list.
*/
public $initrd;
/**
* @var string command line options to pass to the kernel
*/
public $append;
/**
* @var int IPAPPEND from PXEMENU. Bitmask of valid options 1 and 2.
*/
public $ipAppend;
/**
* @var string Password protecting the entry. This is most likely in encrypted form.
*/
public $passwd;
/**
* @var bool whether this section is marked as default (booted after timeout)
*/
public $isDefault = false;
/**
* @var bool Menu entry is not visible (can only be triggered by timeout)
*/
public $isHidden = false;
/**
* @var bool Disable this entry, making it unselectable
*/
public $isDisabled = false;
/**
* @var int|false Value of the LOCALBOOT field, false if not set
*/
public $localBoot = false;
/**
* @var string hotkey to trigger item. Only valid after calling mangle()
*/
public $hotkey;
public function __construct(?string $label) { $this->label = $label; }
public function mangle()
{
if (($i = strpos($this->title, '^')) !== false) {
$this->hotkey = strtoupper($this->title[$i + 1]);
$this->title = substr($this->title, 0, $i) . substr($this->title, $i + 1);
}
if (strpos($this->append, 'initrd=') !== false) {
$parts = preg_split('/\s+/', $this->append);
$this->append = '';
for ($i = 0; $i < count($parts); ++$i) {
if (preg_match('/^initrd=(.*)$/', $parts[$i], $out)) {
if (!empty($this->initrd)) {
$this->initrd .= ',';
}
$this->initrd .= $out[1];
} else {
$this->append .= ' ' . $parts[$i];
}
}
$this->append = trim($this->append);
}
if (is_string($this->initrd)) {
$this->initrd = explode(',', $this->initrd);
} elseif (!is_array($this->initrd)) {
$this->initrd = [];
}
}
/**
* Does this appear to be an entry that triggers localboot?
*/
public function isLocalboot(): bool
{
return $this->localBoot !== false || preg_match('/chain\.c32$/i', $this->kernel);
}
/**
* Is this (most likely) a separating entry only that cannot be selected?
*/
public function isTextOnly(): bool
{
return ($this->label === null || empty($this->kernel)) && !$this->isHidden && !empty($this->title);
}
}
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