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-<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4: */
-/**
-* File containing the Net_LDAP2_LDIF interface class.
-*
-* PHP version 5
-*
-* @category Net
-* @package Net_LDAP2
-* @author Benedikt Hallinger <beni@php.net>
-* @copyright 2009 Benedikt Hallinger
-* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
-* @version SVN: $Id: LDIF.php 286718 2009-08-03 07:30:49Z beni $
-* @link http://pear.php.net/package/Net_LDAP2/
-*/
-
-/**
-* Includes
-*/
-require_once 'PEAR.php';
-require_once 'Net/LDAP2.php';
-require_once 'Net/LDAP2/Entry.php';
-require_once 'Net/LDAP2/Util.php';
-
-/**
-* LDIF capabilitys for Net_LDAP2, closely taken from PERLs Net::LDAP
-*
-* It provides a means to convert between Net_LDAP2_Entry objects and LDAP entries
-* represented in LDIF format files. Reading and writing are supported and may
-* manipulate single entries or lists of entries.
-*
-* Usage example:
-* <code>
-* // Read and parse an ldif-file into Net_LDAP2_Entry objects
-* // and print out the DNs. Store the entries for later use.
-* require 'Net/LDAP2/LDIF.php';
-* $options = array(
-* 'onerror' => 'die'
-* );
-* $entries = array();
-* $ldif = new Net_LDAP2_LDIF('test.ldif', 'r', $options);
-* do {
-* $entry = $ldif->read_entry();
-* $dn = $entry->dn();
-* echo " done building entry: $dn\n";
-* array_push($entries, $entry);
-* } while (!$ldif->eof());
-* $ldif->done();
-*
-*
-* // write those entries to another file
-* $ldif = new Net_LDAP2_LDIF('test.out.ldif', 'w', $options);
-* $ldif->write_entry($entries);
-* $ldif->done();
-* </code>
-*
-* @category Net
-* @package Net_LDAP2
-* @author Benedikt Hallinger <beni@php.net>
-* @license http://www.gnu.org/copyleft/lesser.html LGPL
-* @link http://pear.php.net/package/Net_LDAP22/
-* @see http://www.ietf.org/rfc/rfc2849.txt
-* @todo Error handling should be PEARified
-* @todo LDAPv3 controls are not implemented yet
-*/
-class Net_LDAP2_LDIF extends PEAR
-{
- /**
- * Options
- *
- * @access protected
- * @var array
- */
- protected $_options = array('encode' => 'base64',
- 'onerror' => null,
- 'change' => 0,
- 'lowercase' => 0,
- 'sort' => 0,
- 'version' => null,
- 'wrap' => 78,
- 'raw' => ''
- );
-
- /**
- * Errorcache
- *
- * @access protected
- * @var array
- */
- protected $_error = array('error' => null,
- 'line' => 0
- );
-
- /**
- * Filehandle for read/write
- *
- * @access protected
- * @var array
- */
- protected $_FH = null;
-
- /**
- * Says, if we opened the filehandle ourselves
- *
- * @access protected
- * @var array
- */
- protected $_FH_opened = false;
-
- /**
- * Linecounter for input file handle
- *
- * @access protected
- * @var array
- */
- protected $_input_line = 0;
-
- /**
- * counter for processed entries
- *
- * @access protected
- * @var int
- */
- protected $_entrynum = 0;
-
- /**
- * Mode we are working in
- *
- * Either 'r', 'a' or 'w'
- *
- * @access protected
- * @var string
- */
- protected $_mode = false;
-
- /**
- * Tells, if the LDIF version string was already written
- *
- * @access protected
- * @var boolean
- */
- protected $_version_written = false;
-
- /**
- * Cache for lines that have build the current entry
- *
- * @access protected
- * @var boolean
- */
- protected $_lines_cur = array();
-
- /**
- * Cache for lines that will build the next entry
- *
- * @access protected
- * @var boolean
- */
- protected $_lines_next = array();
-
- /**
- * Open LDIF file for reading or for writing
- *
- * new (FILE):
- * Open the file read-only. FILE may be the name of a file
- * or an already open filehandle.
- * If the file doesn't exist, it will be created if in write mode.
- *
- * new (FILE, MODE, OPTIONS):
- * Open the file with the given MODE (see PHPs fopen()), eg "w" or "a".
- * FILE may be the name of a file or an already open filehandle.
- * PERLs Net_LDAP2 "FILE|" mode does not work curently.
- *
- * OPTIONS is an associative array and may contain:
- * encode => 'none' | 'canonical' | 'base64'
- * Some DN values in LDIF cannot be written verbatim and have to be encoded in some way:
- * 'none' No encoding.
- * 'canonical' See "canonical_dn()" in Net::LDAP::Util.
- * 'base64' Use base64. (default, this differs from the Perl interface.
- * The perl default is "none"!)
- *
- * onerror => 'die' | 'warn' | NULL
- * Specify what happens when an error is detected.
- * 'die' Net_LDAP2_LDIF will croak with an appropriate message.
- * 'warn' Net_LDAP2_LDIF will warn (echo) with an appropriate message.
- * NULL Net_LDAP2_LDIF will not warn (default), use error().
- *
- * change => 1
- * Write entry changes to the LDIF file instead of the entries itself. I.e. write LDAP
- * operations acting on the entries to the file instead of the entries contents.
- * This writes the changes usually carried out by an update() to the LDIF file.
- *
- * lowercase => 1
- * Convert attribute names to lowercase when writing.
- *
- * sort => 1
- * Sort attribute names when writing entries according to the rule:
- * objectclass first then all other attributes alphabetically sorted by attribute name
- *
- * version => '1'
- * Set the LDIF version to write to the resulting LDIF file.
- * According to RFC 2849 currently the only legal value for this option is 1.
- * When this option is set Net_LDAP2_LDIF tries to adhere more strictly to
- * the LDIF specification in RFC2489 in a few places.
- * The default is NULL meaning no version information is written to the LDIF file.
- *
- * wrap => 78
- * Number of columns where output line wrapping shall occur.
- * Default is 78. Setting it to 40 or lower inhibits wrapping.
- *
- * raw => REGEX
- * Use REGEX to denote the names of attributes that are to be
- * considered binary in search results if writing entries.
- * Example: raw => "/(?i:^jpegPhoto|;binary)/i"
- *
- * @param string|ressource $file Filename or filehandle
- * @param string $mode Mode to open filename
- * @param array $options Options like described above
- */
- public function __construct($file, $mode = 'r', $options = array())
- {
- $this->PEAR('Net_LDAP2_Error'); // default error class
-
- // First, parse options
- // todo: maybe implement further checks on possible values
- foreach ($options as $option => $value) {
- if (!array_key_exists($option, $this->_options)) {
- $this->dropError('Net_LDAP2_LDIF error: option '.$option.' not known!');
- return;
- } else {
- $this->_options[$option] = strtolower($value);
- }
- }
-
- // setup LDIF class
- $this->version($this->_options['version']);
-
- // setup file mode
- if (!preg_match('/^[rwa]\+?$/', $mode)) {
- $this->dropError('Net_LDAP2_LDIF error: file mode '.$mode.' not supported!');
- } else {
- $this->_mode = $mode;
-
- // setup filehandle
- if (is_resource($file)) {
- // TODO: checks on mode possible?
- $this->_FH =& $file;
- } else {
- $imode = substr($this->_mode, 0, 1);
- if ($imode == 'r') {
- if (!file_exists($file)) {
- $this->dropError('Unable to open '.$file.' for read: file not found');
- $this->_mode = false;
- }
- if (!is_readable($file)) {
- $this->dropError('Unable to open '.$file.' for read: permission denied');
- $this->_mode = false;
- }
- }
-
- if (($imode == 'w' || $imode == 'a')) {
- if (file_exists($file)) {
- if (!is_writable($file)) {
- $this->dropError('Unable to open '.$file.' for write: permission denied');
- $this->_mode = false;
- }
- } else {
- if (!@touch($file)) {
- $this->dropError('Unable to create '.$file.' for write: permission denied');
- $this->_mode = false;
- }
- }
- }
-
- if ($this->_mode) {
- $this->_FH = @fopen($file, $this->_mode);
- if (false === $this->_FH) {
- // Fallback; should never be reached if tests above are good enough!
- $this->dropError('Net_LDAP2_LDIF error: Could not open file '.$file);
- } else {
- $this->_FH_opened = true;
- }
- }
- }
- }
- }
-
- /**
- * Read one entry from the file and return it as a Net::LDAP::Entry object.
- *
- * @return Net_LDAP2_Entry
- */
- public function read_entry()
- {
- // read fresh lines, set them as current lines and create the entry
- $attrs = $this->next_lines(true);
- if (count($attrs) > 0) {
- $this->_lines_cur = $attrs;
- }
- return $this->current_entry();
- }
-
- /**
- * Returns true when the end of the file is reached.
- *
- * @return boolean
- */
- public function eof()
- {
- return feof($this->_FH);
- }
-
- /**
- * Write the entry or entries to the LDIF file.
- *
- * If you want to build an LDIF file containing several entries AND
- * you want to call write_entry() several times, you must open the filehandle
- * in append mode ("a"), otherwise you will always get the last entry only.
- *
- * @param Net_LDAP2_Entry|array $entries Entry or array of entries
- *
- * @return void
- * @todo implement operations on whole entries (adding a whole entry)
- */
- public function write_entry($entries)
- {
- if (!is_array($entries)) {
- $entries = array($entries);
- }
-
- foreach ($entries as $entry) {
- $this->_entrynum++;
- if (!$entry instanceof Net_LDAP2_Entry) {
- $this->dropError('Net_LDAP2_LDIF error: entry '.$this->_entrynum.' is not an Net_LDAP2_Entry object');
- } else {
- if ($this->_options['change']) {
- // LDIF change mode
- // fetch change information from entry
- $entry_attrs_changes = $entry->getChanges();
- $num_of_changes = count($entry_attrs_changes['add'])
- + count($entry_attrs_changes['replace'])
- + count($entry_attrs_changes['delete']);
-
- $is_changed = ($num_of_changes > 0 || $entry->willBeDeleted() || $entry->willBeMoved());
-
- // write version if not done yet
- // also write DN of entry
- if ($is_changed) {
- if (!$this->_version_written) {
- $this->write_version();
- }
- $this->writeDN($entry->currentDN());
- }
-
- // process changes
- // TODO: consider DN add!
- if ($entry->willBeDeleted()) {
- $this->writeLine("changetype: delete".PHP_EOL);
- } elseif ($entry->willBeMoved()) {
- $this->writeLine("changetype: modrdn".PHP_EOL);
- $olddn = Net_LDAP2_Util::ldap_explode_dn($entry->currentDN(), array('casefold' => 'none')); // maybe gives a bug if using multivalued RDNs
- $oldrdn = array_shift($olddn);
- $oldparent = implode(',', $olddn);
- $newdn = Net_LDAP2_Util::ldap_explode_dn($entry->dn(), array('casefold' => 'none')); // maybe gives a bug if using multivalued RDNs
- $rdn = array_shift($newdn);
- $parent = implode(',', $newdn);
- $this->writeLine("newrdn: ".$rdn.PHP_EOL);
- $this->writeLine("deleteoldrdn: 1".PHP_EOL);
- if ($parent !== $oldparent) {
- $this->writeLine("newsuperior: ".$parent.PHP_EOL);
- }
- // TODO: What if the entry has attribute changes as well?
- // I think we should check for that and make a dummy
- // entry with the changes that is written to the LDIF file
- } elseif ($num_of_changes > 0) {
- // write attribute change data
- $this->writeLine("changetype: modify".PHP_EOL);
- foreach ($entry_attrs_changes as $changetype => $entry_attrs) {
- foreach ($entry_attrs as $attr_name => $attr_values) {
- $this->writeLine("$changetype: $attr_name".PHP_EOL);
- if ($attr_values !== null) $this->writeAttribute($attr_name, $attr_values, $changetype);
- $this->writeLine("-".PHP_EOL);
- }
- }
- }
-
- // finish this entrys data if we had changes
- if ($is_changed) {
- $this->finishEntry();
- }
- } else {
- // LDIF-content mode
- // fetch attributes for further processing
- $entry_attrs = $entry->getValues();
-
- // sort and put objectclass-attrs to first position
- if ($this->_options['sort']) {
- ksort($entry_attrs);
- if (array_key_exists('objectclass', $entry_attrs)) {
- $oc = $entry_attrs['objectclass'];
- unset($entry_attrs['objectclass']);
- $entry_attrs = array_merge(array('objectclass' => $oc), $entry_attrs);
- }
- }
-
- // write data
- if (!$this->_version_written) {
- $this->write_version();
- }
- $this->writeDN($entry->dn());
- foreach ($entry_attrs as $attr_name => $attr_values) {
- $this->writeAttribute($attr_name, $attr_values);
- }
- $this->finishEntry();
- }
- }
- }
- }
-
- /**
- * Write version to LDIF
- *
- * If the object's version is defined, this method allows to explicitely write the version before an entry is written.
- * If not called explicitely, it gets called automatically when writing the first entry.
- *
- * @return void
- */
- public function write_version()
- {
- $this->_version_written = true;
- if (!is_null($this->version())) {
- return $this->writeLine('version: '.$this->version().PHP_EOL, 'Net_LDAP2_LDIF error: unable to write version');
- }
- }
-
- /**
- * Get or set LDIF version
- *
- * If called without arguments it returns the version of the LDIF file or NULL if no version has been set.
- * If called with an argument it sets the LDIF version to VERSION.
- * According to RFC 2849 currently the only legal value for VERSION is 1.
- *
- * @param int $version (optional) LDIF version to set
- *
- * @return int
- */
- public function version($version = null)
- {
- if ($version !== null) {
- if ($version != 1) {
- $this->dropError('Net_LDAP2_LDIF error: illegal LDIF version set');
- } else {
- $this->_options['version'] = $version;
- }
- }
- return $this->_options['version'];
- }
-
- /**
- * Returns the file handle the Net_LDAP2_LDIF object reads from or writes to.
- *
- * You can, for example, use this to fetch the content of the LDIF file yourself
- *
- * @return null|resource
- */
- public function &handle()
- {
- if (!is_resource($this->_FH)) {
- $this->dropError('Net_LDAP2_LDIF error: invalid file resource');
- $null = null;
- return $null;
- } else {
- return $this->_FH;
- }
- }
-
- /**
- * Clean up
- *
- * This method signals that the LDIF object is no longer needed.
- * You can use this to free up some memory and close the file handle.
- * The file handle is only closed, if it was opened from Net_LDAP2_LDIF.
- *
- * @return void
- */
- public function done()
- {
- // close FH if we opened it
- if ($this->_FH_opened) {
- fclose($this->handle());
- }
-
- // free variables
- foreach (get_object_vars($this) as $name => $value) {
- unset($this->$name);
- }
- }
-
- /**
- * Returns last error message if error was found.
- *
- * Example:
- * <code>
- * $ldif->someAction();
- * if ($ldif->error()) {
- * echo "Error: ".$ldif->error()." at input line: ".$ldif->error_lines();
- * }
- * </code>
- *
- * @param boolean $as_string If set to true, only the message is returned
- *
- * @return false|Net_LDAP2_Error
- */
- public function error($as_string = false)
- {
- if (Net_LDAP2::isError($this->_error['error'])) {
- return ($as_string)? $this->_error['error']->getMessage() : $this->_error['error'];
- } else {
- return false;
- }
- }
-
- /**
- * Returns lines that resulted in error.
- *
- * Perl returns an array of faulty lines in list context,
- * but we always just return an int because of PHPs language.
- *
- * @return int
- */
- public function error_lines()
- {
- return $this->_error['line'];
- }
-
- /**
- * Returns the current Net::LDAP::Entry object.
- *
- * @return Net_LDAP2_Entry|false
- */
- public function current_entry()
- {
- return $this->parseLines($this->current_lines());
- }
-
- /**
- * Parse LDIF lines of one entry into an Net_LDAP2_Entry object
- *
- * @param array $lines LDIF lines for one entry
- *
- * @return Net_LDAP2_Entry|false Net_LDAP2_Entry object for those lines
- * @todo what about file inclusions and urls? "jpegphoto:< file:///usr/local/directory/photos/fiona.jpg"
- */
- public function parseLines($lines)
- {
- // parse lines into an array of attributes and build the entry
- $attributes = array();
- $dn = false;
- foreach ($lines as $line) {
- if (preg_match('/^(\w+)(:|::|:<)\s(.+)$/', $line, $matches)) {
- $attr =& $matches[1];
- $delim =& $matches[2];
- $data =& $matches[3];
-
- if ($delim == ':') {
- // normal data
- $attributes[$attr][] = $data;
- } elseif ($delim == '::') {
- // base64 data
- $attributes[$attr][] = base64_decode($data);
- } elseif ($delim == ':<') {
- // file inclusion
- // TODO: Is this the job of the LDAP-client or the server?
- $this->dropError('File inclusions are currently not supported');
- //$attributes[$attr][] = ...;
- } else {
- // since the pattern above, the delimeter cannot be something else.
- $this->dropError('Net_LDAP2_LDIF parsing error: invalid syntax at parsing entry line: '.$line);
- continue;
- }
-
- if (strtolower($attr) == 'dn') {
- // DN line detected
- $dn = $attributes[$attr][0]; // save possibly decoded DN
- unset($attributes[$attr]); // remove wrongly added "dn: " attribute
- }
- } else {
- // line not in "attr: value" format -> ignore
- // maybe we should rise an error here, but this should be covered by
- // next_lines() already. A problem arises, if users try to feed data of
- // several entries to this method - the resulting entry will
- // get wrong attributes. However, this is already mentioned in the
- // methods documentation above.
- }
- }
-
- if (false === $dn) {
- $this->dropError('Net_LDAP2_LDIF parsing error: unable to detect DN for entry');
- return false;
- } else {
- $newentry = Net_LDAP2_Entry::createFresh($dn, $attributes);
- return $newentry;
- }
- }
-
- /**
- * Returns the lines that generated the current Net::LDAP::Entry object.
- *
- * Note that this returns an empty array if no lines have been read so far.
- *
- * @return array Array of lines
- */
- public function current_lines()
- {
- return $this->_lines_cur;
- }
-
- /**
- * Returns the lines that will generate the next Net::LDAP::Entry object.
- *
- * If you set $force to TRUE then you can iterate over the lines that build
- * up entries manually. Otherwise, iterating is done using {@link read_entry()}.
- * Force will move the file pointer forward, thus returning the next entries lines.
- *
- * Wrapped lines will be unwrapped. Comments are stripped.
- *
- * @param boolean $force Set this to true if you want to iterate over the lines manually
- *
- * @return array
- */
- public function next_lines($force = false)
- {
- // if we already have those lines, just return them, otherwise read
- if (count($this->_lines_next) == 0 || $force) {
- $this->_lines_next = array(); // empty in case something was left (if used $force)
- $entry_done = false;
- $fh = &$this->handle();
- $commentmode = false; // if we are in an comment, for wrapping purposes
- $datalines_read = 0; // how many lines with data we have read
-
- while (!$entry_done && !$this->eof()) {
- $this->_input_line++;
- // Read line. Remove line endings, we want only data;
- // this is okay since ending spaces should be encoded
- $data = rtrim(fgets($fh));
- if ($data === false) {
- // error only, if EOF not reached after fgets() call
- if (!$this->eof()) {
- $this->dropError('Net_LDAP2_LDIF error: error reading from file at input line '.$this->_input_line, $this->_input_line);
- }
- break;
- } else {
- if (count($this->_lines_next) > 0 && preg_match('/^$/', $data)) {
- // Entry is finished if we have an empty line after we had data
- $entry_done = true;
-
- // Look ahead if the next EOF is nearby. Comments and empty
- // lines at the file end may cause problems otherwise
- $current_pos = ftell($fh);
- $data = fgets($fh);
- while (!feof($fh)) {
- if (preg_match('/^\s*$/', $data) || preg_match('/^#/', $data)) {
- // only empty lines or comments, continue to seek
- // TODO: Known bug: Wrappings for comments are okay but are treaten as
- // error, since we do not honor comment mode here.
- // This should be a very theoretically case, however
- // i am willing to fix this if really necessary.
- $this->_input_line++;
- $current_pos = ftell($fh);
- $data = fgets($fh);
- } else {
- // Data found if non emtpy line and not a comment!!
- // Rewind to position prior last read and stop lookahead
- fseek($fh, $current_pos);
- break;
- }
- }
- // now we have either the file pointer at the beginning of
- // a new data position or at the end of file causing feof() to return true
-
- } else {
- // build lines
- if (preg_match('/^version:\s(.+)$/', $data, $match)) {
- // version statement, set version
- $this->version($match[1]);
- } elseif (preg_match('/^\w+::?\s.+$/', $data)) {
- // normal attribute: add line
- $commentmode = false;
- $this->_lines_next[] = trim($data);
- $datalines_read++;
- } elseif (preg_match('/^\s(.+)$/', $data, $matches)) {
- // wrapped data: unwrap if not in comment mode
- if (!$commentmode) {
- if ($datalines_read == 0) {
- // first line of entry: wrapped data is illegal
- $this->dropError('Net_LDAP2_LDIF error: illegal wrapping at input line '.$this->_input_line, $this->_input_line);
- } else {
- $last = array_pop($this->_lines_next);
- $last = $last.trim($matches[1]);
- $this->_lines_next[] = $last;
- $datalines_read++;
- }
- }
- } elseif (preg_match('/^#/', $data)) {
- // LDIF comments
- $commentmode = true;
- } elseif (preg_match('/^\s*$/', $data)) {
- // empty line but we had no data for this
- // entry, so just ignore this line
- $commentmode = false;
- } else {
- $this->dropError('Net_LDAP2_LDIF error: invalid syntax at input line '.$this->_input_line, $this->_input_line);
- continue;
- }
-
- }
- }
- }
- }
- return $this->_lines_next;
- }
-
- /**
- * Convert an attribute and value to LDIF string representation
- *
- * It honors correct encoding of values according to RFC 2849.
- * Line wrapping will occur at the configured maximum but only if
- * the value is greater than 40 chars.
- *
- * @param string $attr_name Name of the attribute
- * @param string $attr_value Value of the attribute
- *
- * @access protected
- * @return string LDIF string for that attribute and value
- */
- protected function convertAttribute($attr_name, $attr_value)
- {
- // Handle empty attribute or process
- if (strlen($attr_value) == 0) {
- $attr_value = " ";
- } else {
- $base64 = false;
- // ASCII-chars that are NOT safe for the
- // start and for being inside the value.
- // These are the int values of those chars.
- $unsafe_init = array(0, 10, 13, 32, 58, 60);
- $unsafe = array(0, 10, 13);
-
- // Test for illegal init char
- $init_ord = ord(substr($attr_value, 0, 1));
- if ($init_ord > 127 || in_array($init_ord, $unsafe_init)) {
- $base64 = true;
- }
-
- // Test for illegal content char
- for ($i = 0; $i < strlen($attr_value); $i++) {
- $char_ord = ord(substr($attr_value, $i, 1));
- if ($char_ord > 127 || in_array($char_ord, $unsafe)) {
- $base64 = true;
- }
- }
-
- // Test for ending space
- if (substr($attr_value, -1) == ' ') {
- $base64 = true;
- }
-
- // If converting is needed, do it
- // Either we have some special chars or a matching "raw" regex
- if ($base64 || ($this->_options['raw'] && preg_match($this->_options['raw'], $attr_name))) {
- $attr_name .= ':';
- $attr_value = base64_encode($attr_value);
- }
-
- // Lowercase attr names if requested
- if ($this->_options['lowercase']) $attr_name = strtolower($attr_name);
-
- // Handle line wrapping
- if ($this->_options['wrap'] > 40 && strlen($attr_value) > $this->_options['wrap']) {
- $attr_value = wordwrap($attr_value, $this->_options['wrap'], PHP_EOL." ", true);
- }
- }
-
- return $attr_name.': '.$attr_value;
- }
-
- /**
- * Convert an entries DN to LDIF string representation
- *
- * It honors correct encoding of values according to RFC 2849.
- *
- * @param string $dn UTF8-Encoded DN
- *
- * @access protected
- * @return string LDIF string for that DN
- * @todo I am not sure, if the UTF8 stuff is correctly handled right now
- */
- protected function convertDN($dn)
- {
- $base64 = false;
- // ASCII-chars that are NOT safe for the
- // start and for being inside the dn.
- // These are the int values of those chars.
- $unsafe_init = array(0, 10, 13, 32, 58, 60);
- $unsafe = array(0, 10, 13);
-
- // Test for illegal init char
- $init_ord = ord(substr($dn, 0, 1));
- if ($init_ord >= 127 || in_array($init_ord, $unsafe_init)) {
- $base64 = true;
- }
-
- // Test for illegal content char
- for ($i = 0; $i < strlen($dn); $i++) {
- $char = substr($dn, $i, 1);
- if (ord($char) >= 127 || in_array($init_ord, $unsafe)) {
- $base64 = true;
- }
- }
-
- // Test for ending space
- if (substr($dn, -1) == ' ') {
- $base64 = true;
- }
-
- // if converting is needed, do it
- return ($base64)? 'dn:: '.base64_encode($dn) : 'dn: '.$dn;
- }
-
- /**
- * Writes an attribute to the filehandle
- *
- * @param string $attr_name Name of the attribute
- * @param string|array $attr_values Single attribute value or array with attribute values
- *
- * @access protected
- * @return void
- */
- protected function writeAttribute($attr_name, $attr_values)
- {
- // write out attribute content
- if (!is_array($attr_values)) {
- $attr_values = array($attr_values);
- }
- foreach ($attr_values as $attr_val) {
- $line = $this->convertAttribute($attr_name, $attr_val).PHP_EOL;
- $this->writeLine($line, 'Net_LDAP2_LDIF error: unable to write attribute '.$attr_name.' of entry '.$this->_entrynum);
- }
- }
-
- /**
- * Writes a DN to the filehandle
- *
- * @param string $dn DN to write
- *
- * @access protected
- * @return void
- */
- protected function writeDN($dn)
- {
- // prepare DN
- if ($this->_options['encode'] == 'base64') {
- $dn = $this->convertDN($dn).PHP_EOL;
- } elseif ($this->_options['encode'] == 'canonical') {
- $dn = Net_LDAP2_Util::canonical_dn($dn, array('casefold' => 'none')).PHP_EOL;
- } else {
- $dn = $dn.PHP_EOL;
- }
- $this->writeLine($dn, 'Net_LDAP2_LDIF error: unable to write DN of entry '.$this->_entrynum);
- }
-
- /**
- * Finishes an LDIF entry
- *
- * @access protected
- * @return void
- */
- protected function finishEntry()
- {
- $this->writeLine(PHP_EOL, 'Net_LDAP2_LDIF error: unable to close entry '.$this->_entrynum);
- }
-
- /**
- * Just write an arbitary line to the filehandle
- *
- * @param string $line Content to write
- * @param string $error If error occurs, drop this message
- *
- * @access protected
- * @return true|false
- */
- protected function writeLine($line, $error = 'Net_LDAP2_LDIF error: unable to write to filehandle')
- {
- if (is_resource($this->handle()) && fwrite($this->handle(), $line, strlen($line)) === false) {
- $this->dropError($error);
- return false;
- } else {
- return true;
- }
- }
-
- /**
- * Optionally raises an error and pushes the error on the error cache
- *
- * @param string $msg Errortext
- * @param int $line Line in the LDIF that caused the error
- *
- * @access protected
- * @return void
- */
- protected function dropError($msg, $line = null)
- {
- $this->_error['error'] = new Net_LDAP2_Error($msg);
- if ($line !== null) $this->_error['line'] = $line;
-
- if ($this->_options['onerror'] == 'die') {
- die($msg.PHP_EOL);
- } elseif ($this->_options['onerror'] == 'warn') {
- echo $msg.PHP_EOL;
- }
- }
-}
-?>
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