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phorge/src/applications/auth/sshkey/PhabricatorAuthSSHPublicKey.php
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PhabricatorAuthSSHPublicKey.php
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<?php
/**
* Data structure representing a raw public key.
*/
final class PhabricatorAuthSSHPublicKey extends Phobject {
private $type;
private $body;
private $comment;
private function __construct() {
// <internal>
}
public static function newFromStoredKey(PhabricatorAuthSSHKey $key) {
$public_key = new PhabricatorAuthSSHPublicKey();
$public_key->type = $key->getKeyType();
$public_key->body = $key->getKeyBody();
$public_key->comment = $key->getKeyComment();
return $public_key;
}
public static function newFromRawKey($entire_key) {
$entire_key = trim($entire_key);
if (!strlen($entire_key)) {
throw new Exception(pht('No public key was provided.'));
}
$parts = str_replace("\n", '', $entire_key);
// The third field (the comment) can have spaces in it, so split this
// into a maximum of three parts.
$parts = preg_split('/\s+/', $parts, 3);
if (preg_match('/private\s*key/i', $entire_key)) {
// Try to give the user a better error message if it looks like
// they uploaded a private key.
throw new Exception(pht('Provide a public key, not a private key!'));
}
switch (count($parts)) {
case 1:
throw new Exception(
pht('Provided public key is not properly formatted.'));
case 2:
// Add an empty comment part.
$parts[] = '';
break;
case 3:
// This is the expected case.
break;
}
list($type, $body, $comment) = $parts;
$recognized_keys = array(
'ssh-dsa',
'ssh-dss',
'ssh-rsa',
'ecdsa-sha2-nistp256',
'ecdsa-sha2-nistp384',
'ecdsa-sha2-nistp521',
);
if (!in_array($type, $recognized_keys)) {
$type_list = implode(', ', $recognized_keys);
throw new Exception(
pht(
'Public key type should be one of: %s',
$type_list));
}
$public_key = new PhabricatorAuthSSHPublicKey();
$public_key->type = $type;
$public_key->body = $body;
$public_key->comment = $comment;
return $public_key;
}
public function getType() {
return $this->type;
}
public function getBody() {
return $this->body;
}
public function getComment() {
return $this->comment;
}
public function getHash() {
$body = $this->getBody();
$body = trim($body);
$body = rtrim($body, '=');
return PhabricatorHash::digestForIndex($body);
}
}

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