605 lines
16 KiB
PHP
605 lines
16 KiB
PHP
<?php
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/**
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* Classes and functions for importing data to LDAP
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*
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* These classes provide differnet import formats.
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*
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* @author The phpLDAPadmin development team
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* @package phpLDAPadmin
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* @see import.php and import_form.php
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*/
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/**
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* Importer Class
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*
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* This class serves as a top level importer class, which will return
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* the correct Import class.
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*
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* @package phpLDAPadmin
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* @subpackage Import
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*/
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class Importer {
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# Server ID that the export is linked to
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private $server_id;
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# Import Type
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private $template_id;
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private $template;
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public function __construct($server_id,$template_id) {
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$this->server_id = $server_id;
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$this->template_id = $template_id;
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$this->accept();
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}
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static function types() {
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$type = array();
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$details = ImportLDIF::getType();
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$type[$details['type']] = $details;
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return $type;
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}
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private function accept() {
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switch($this->template_id) {
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case 'LDIF':
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$this->template = new ImportLDIF($this->server_id);
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break;
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default:
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die();
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}
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$this->template->accept();
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}
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public function getTemplate() {
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return $this->template;
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}
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}
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/**
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* Import Class
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*
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* This abstract classes provides all the common methods and variables for the
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* custom import classes.
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*
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* @package phpLDAPadmin
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* @subpackage Import
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*/
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abstract class Import {
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protected $server_id = null;
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protected $input = null;
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protected $source = array();
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public function __construct($server_id) {
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$this->server_id = $server_id;
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}
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public function accept() {
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if (get_request('ldif','REQUEST')) {
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$this->input = explode("\n",get_request('ldif','REQUEST'));
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$this->source['name'] = 'STDIN';
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$this->source['size'] = strlen(get_request('ldif','REQUEST'));
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} elseif (isset($_FILES['ldif_file']) && is_array($_FILES['ldif_file']) && ! $_FILES['ldif_file']['error']) {
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$input = file_get_contents($_FILES['ldif_file']['tmp_name']);
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$this->input = preg_split("/\n|\r\n|\r/",$input);
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$this->source['name'] = $_FILES['ldif_file']['name'];
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$this->source['size'] = $_FILES['ldif_file']['size'];
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} else {
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system_message(array(
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'title'=>_('No import input'),
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'body'=>_('You must either upload a file or provide an import in the text box.'),
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'type'=>'error'),sprintf('cmd.php?cmd=import_form&server_id=%s',get_request('server_id','REQUEST')));
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die();
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}
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}
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public function getSource($attr) {
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if (isset($this->source[$attr]))
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return $this->source[$attr];
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else
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return null;
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}
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# @todo integrate hooks
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public function LDAPimport() {
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$template = $this->getTemplate();
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$server = $this->getServer();
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switch ($template->getType()) {
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case 'add':
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return $server->add($template->getDN(),$template->getLDAPadd());
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case 'modify':
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return $server->modify($template->getDN(),$template->getLDAPmodify());
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case 'moddn':
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case 'modrdn':
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return $server->rename($template->getDN(),$template->modrdn['newrdn'],$template->modrdn['newsuperior'],$template->modrdn['deleteoldrdn']);
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default:
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debug_dump_backtrace(sprintf('Unknown template type %s',$template->getType()),1);
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}
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return true;
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}
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}
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/**
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* Import entries from LDIF
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*
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* The LDIF spec is described by RFC2849
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* http://www.ietf.org/rfc/rfc2849.txt
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*
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* @package phpLDAPadmin
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* @subpackage Import
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*/
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class ImportLDIF extends Import {
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private $_currentLineNumber = 0;
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private $_currentLine = '';
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private $template;
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public $error = array();
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static public function getType() {
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return array('type'=>'LDIF','description' => _('LDIF import'),'extension'=>'ldif');
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}
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protected function getTemplate() {
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return $this->template;
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}
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protected function getServer() {
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return $_SESSION[APPCONFIG]->getServer($this->server_id);
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}
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public function readEntry() {
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static $haveVersion = false;
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if ($lines = $this->nextLines()) {
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# If we have a version line.
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if (! $haveVersion && preg_match('/^version:/',$lines[0])) {
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list($text,$version) = $this->getAttrValue(array_shift($lines));
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if ($version != 1)
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return $this->error(sprintf('%s %s',_('LDIF import only suppports version 1'),$version),$lines);
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$haveVersion = true;
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$lines = $this->nextLines();
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}
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$server = $this->getServer();
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# The first line should be the DN
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if (preg_match('/^dn:/',$lines[0])) {
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list($text,$dn) = $this->getAttrValue(array_shift($lines));
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# The second line should be our changetype
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if (preg_match('/^changetype:[ ]*(delete|add|modrdn|moddn|modify)/i',$lines[0])) {
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$attrvalue = $this->getAttrValue($lines[0]);
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$changetype = $attrvalue[1];
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array_shift($lines);
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} else
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$changetype = 'add';
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$this->template = new Template($this->server_id,null,null,$changetype);
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switch ($changetype) {
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case 'add':
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$rdn = get_rdn($dn);
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$container = $server->getContainer($dn);
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$this->template->setContainer($container);
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$this->template->accept();
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$this->getAddDetails($lines);
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$this->template->setRDNAttributes($rdn);
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return $this->template;
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break;
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case 'modify':
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if (! $server->dnExists($dn))
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return $this->error(sprintf('%s %s',_('DN does not exist'),$dn),$lines);
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$this->template->setDN($dn);
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$this->template->accept();
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return $this->getModifyDetails($lines);
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break;
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case 'moddn':
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case 'modrdn':
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if (! $server->dnExists($dn))
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return $this->error(sprintf('%s %s',_('DN does not exist'),$dn),$lines);
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$this->template->setDN($dn);
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$this->template->accept();
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return $this->getModRDNAttributes($lines);
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break;
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default:
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if (! $server->dnExists($dn))
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return $this->error(_('Unkown change type'),$lines);
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}
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} else
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return $this->error(_('A valid dn line is required'),$lines);
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} else
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return false;
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}
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/**
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* Get the Attribute and Decoded Value
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*/
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private function getAttrValue($line) {
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list($attr,$value) = explode(':',$line,2);
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# Get the DN
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if (substr($value,0,1) == ':')
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$value = base64_decode(trim(substr($value,1)));
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else
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$value = trim($value);
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return array($attr,$value);
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}
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/**
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* Get the lines of the next entry
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*
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* @return The lines (unfolded) of the next entry
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*/
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private function nextLines() {
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$current = array();
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$endEntryFound = false;
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if ($this->hasMoreEntries() && ! $this->eof()) {
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# The first line is the DN one
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$current[0]= trim($this->_currentLine);
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# While we end on a blank line, fetch the attribute lines
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$count = 0;
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while (! $this->eof() && ! $endEntryFound) {
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# Fetch the next line
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$this->nextLine();
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/* If the next line begin with a space, we append it to the current row
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* else we push it into the array (unwrap)*/
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if ($this->isWrappedLine())
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$current[$count] .= trim($this->_currentLine);
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elseif ($this->isCommentLine()) {}
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# Do nothing
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elseif (! $this->isBlankLine())
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$current[++$count] = trim($this->_currentLine);
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else
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$endEntryFound = true;
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}
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# Return the LDIF entry array
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return $current;
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} else
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return array();
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}
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/**
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* Private method to check if there is more entries in the input.
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*
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* @return boolean true if an entry was found, false otherwise.
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*/
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private function hasMoreEntries() {
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$entry_found = false;
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while (! $this->eof() && ! $entry_found) {
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# If it's a comment or blank line, switch to the next line
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if ($this->isCommentLine() || $this->isBlankLine()) {
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# Do nothing
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$this->nextLine();
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} else {
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$this->_currentDnLine = $this->_currentLine;
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$this->dnLineNumber = $this->_currentLineNumber;
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$entry_found = true;
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}
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}
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return $entry_found;
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}
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/**
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* Helper method to switch to the next line
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*/
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private function nextLine() {
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$this->_currentLineNumber++;
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$this->_currentLine = array_shift($this->input);
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}
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/**
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* Check if it's a comment line.
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*
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* @return boolean true if it's a comment line,false otherwise
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*/
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private function isCommentLine() {
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return substr(trim($this->_currentLine),0,1) == '#' ? true : false;
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}
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/**
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* Check if it's a wrapped line.
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*
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* @return boolean true if it's a wrapped line,false otherwise
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*/
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private function isWrappedLine() {
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return substr($this->_currentLine,0,1) == ' ' ? true : false;
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}
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/**
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* Check if is the current line is a blank line.
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*
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* @return boolean if it is a blank line,false otherwise.
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*/
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private function isBlankLine() {
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return(trim($this->_currentLine) == '') ? true : false;
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}
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/**
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* Returns true if we reached the end of the input.
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*
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* @return boolean true if it's the end of file, false otherwise.
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*/
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public function eof() {
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return count($this->input) > 0 ? false : true;
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}
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private function error($msg,$data) {
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$this->error['message'] = sprintf('%s [%s]',$msg,$this->template ? $this->template->getDN() : '');
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$this->error['line'] = $this->_currentLineNumber;
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$this->error['data'] = $data;
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$this->error['changetype'] = $this->template ? $this->template->getType() : 'Not set';
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return false;
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}
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/**
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* Method to retrieve the attribute value of a ldif line,
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* and get the base 64 decoded value if it is encoded
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*/
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private function getAttributeValue($value) {
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$return = '';
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if (substr($value,0,1) == '<') {
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$url = trim(substr($value,1));
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if (preg_match('^file://',$url)) {
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$filename = substr(trim($url),7);
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if ($fh = @fopen($filename,'rb')) {
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if (! $return = @fread($fh,filesize($filename)))
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return $this->error(_('Unable to read file.'),$value);
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@fclose($fh);
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} else
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return $this->error(_('Unable to read file.'),$value);
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} else
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return $this->error(_('The url attribute value should begin with file://.'),$value);
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# It's a string
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} else
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$return = $value;
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return trim($return);
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}
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/**
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* Build the attributes array when the change type is add.
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*/
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private function getAddDetails($lines) {
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foreach ($lines as $line) {
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list($attr,$value) = $this->getAttrValue($line);
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if (is_null($attribute = $this->template->getAttribute($attr))) {
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$attribute = $this->template->addAttribute($attr,array('values'=>array($value)));
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$attribute->justModified();
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} else
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if ($attribute->hasBeenModified())
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$attribute->addValue($value);
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else
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$attribute->setValue(array($value));
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}
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}
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/**
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* Build the attributes array for the entry when the change type is modify
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*/
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private function getModifyDetails($lines) {
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if (! count($lines))
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return $this->error(_('Missing attributes for'),$lines);
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# While the array is not empty
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while (count($lines)) {
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$processline = false;
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$deleteattr = false;
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# Get the current line with the action
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$currentLine = array_shift($lines);
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$attrvalue = $this->getAttrValue($currentLine);
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$action_attribute = $attrvalue[0];
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$action_attribute_value = $attrvalue[1];
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if (! in_array($action_attribute,array('add','delete','replace')))
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return $this->error(_('Missing modify command add, delete or replace'),array_merge(array($currentLine),$lines));
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$processline = true;
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switch ($action_attribute) {
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case 'add':
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break;
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case 'delete':
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$attribute = $this->template->getAttribute($action_attribute_value);
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if (is_null($attribute))
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return $this->error(sprintf('%s %s',_('Attempting to delete a non existent attribute'),$action_attribute_value),
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array_merge(array($currentLine),$lines));
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$deleteattr = true;
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break;
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case 'replace':
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$attribute = $this->template->getAttribute($action_attribute_value);
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if (is_null($attribute))
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return $this->error(sprintf('%s %s',_('Attempting to replace a non existant attribute'),$action_attribute_value),
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array_merge(array($currentLine),$lines));
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break;
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default:
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debug_dump_backtrace(sprintf('Unknown action %s',$action_attribute),1);
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}
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# Fetch the attribute for the following line
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$currentLine = array_shift($lines);
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while ($processline && trim($currentLine) && (trim($currentLine) != '-')) {
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$processline = false;
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# If there is a valid line
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if (preg_match('/:/',$currentLine)) {
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$attrvalue = $this->getAttrValue($currentLine);
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$attr = $attrvalue[0];
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$attribute_value_part = $attrvalue[1];
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# Check that it correspond to the one specified before
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if ($attr == $action_attribute_value) {
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# Get the value part of the attribute
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$attribute_value = $this->getAttributeValue($attribute_value_part);
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$attribute = $this->template->getAttribute($attr);
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# This should be a add/replace operation
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switch ($action_attribute) {
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case 'add':
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if (is_null($attribute))
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$attribute = $this->template->addAttribute($attr,array('values'=>array($attribute_value_part)));
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else
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$attribute->addValue($attribute_value_part,-1);
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$attribute->justModified();
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break;
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case 'delete':
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$deleteattr = false;
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if ($key = array_search($attribute_value_part,$attribute->getValues()))
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$attribute->delValue($key);
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else
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return $this->error(sprintf('%s %s',_('Delete value doesnt exist in DN'),$attribute_value_part),
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array_merge(array($currentLine),$lines));
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break;
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case 'replace':
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if ($attribute->hasBeenModified())
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$attribute->addValue($attribute_value_part,-1);
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else
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$attribute->setValue(array($attribute_value_part));
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break;
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default:
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debug_dump_backtrace(sprintf('Unexpected operation %s',$action_attribute));
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}
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} else
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return $this->error(sprintf(_('The attribute to modify doesn\'t match the one specified by %s.'),$action_attribute),
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array_merge(array($currentLine),$lines));
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} else
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return $this->error(sprintf('%s %s',_('Attribute not valid'),$currentLine),
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array_merge(array($currentLine),$lines));
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$currentLine = array_shift($lines);
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if (trim($currentLine))
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$processline = true;
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}
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if ($action_attribute == 'delete' && $deleteattr)
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$attribute->setValue(array());
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}
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return $this->template;
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}
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/**
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* Build the attributes for the entry when the change type is modrdn
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*/
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function getModRDNAttributes($lines) {
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$server = $this->getServer();
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$attrs = array();
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# MODRDN MODDN should only be 2 or 3 lines.
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if (count($lines) != 2 && count($lines) !=3)
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return $this->error(_('Invalid entry'),$lines);
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else {
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$currentLine = array_shift($lines);
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# First we need to check if there is an new rdn specified
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if (preg_match('/^newrdn:(:?)/',$currentLine)) {
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$attrvalue = $this->getAttrValue($currentLine);
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$attrs['newrdn'] = $attrvalue[1];
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$currentLine = array_shift($lines);
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if (preg_match('/^deleteoldrdn:[ ]*(0|1)/',$currentLine)) {
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$attrvalue = $this->getAttrValue($currentLine);
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$attrs['deleteoldrdn'] = $attrvalue[1];
|
|
|
|
# Switch to the possible new superior attribute
|
|
if (count($lines)) {
|
|
$currentLine = array_shift($lines);
|
|
|
|
# then the possible new superior attribute
|
|
if (preg_match('/^newsuperior:/',$currentLine)) {
|
|
$attrvalue = $this->getAttrValue($currentLine);
|
|
$attrs['newsuperior'] = $attrvalue[1];
|
|
|
|
} else
|
|
return $this->error(_('A valid newsuperier attribute should be specified'),$lines);
|
|
|
|
} else
|
|
$attrs['newsuperior'] = $server->getContainer($this->template->getDN());
|
|
|
|
} else
|
|
return $this->error(_('A valid deleteoldrdn attribute should be specified'),$lines);
|
|
|
|
} else
|
|
return $this->error(_('A valid newrdn attribute should be specified'),$lines);
|
|
}
|
|
|
|
# Well do something out of the ordinary here, since our template doesnt handle mod[r]dn yet.
|
|
$this->template->modrdn = $attrs;
|
|
return $this->template;
|
|
}
|
|
}
|
|
?>
|