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gnu-social/extlib/Net/LDAP2/LDIF.php

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Added Net_LDAP2 to extlib, and add a skeleton LDAP plugin
2009-11-04 18:39:56 +00:00
<?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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