<?php
// $Header: /cvsroot/phpldapadmin/phpldapadmin/functions.php,v 1.275 2005/09/25 16:11:44 wurley Exp $
/**
* A collection of functions used throughout phpLDAPadmin.
* @author The phpLDAPadmin development team
* @package phpLDAPadmin
*/
@DEFINE(LANGDIR,sprintf('%s/',realpath(LIBDIR.'./lang/')));
@DEFINE(CONFDIR,sprintf('%s/',realpath(LIBDIR.'./')));
@DEFINE(TMPLDIR,sprintf('%s/',realpath(LIBDIR.'./templates/')));
@DEFINE(DOCDIR,sprintf('%s/',realpath(LIBDIR.'./doc/')));
@DEFINE(CSSDIR,'./');
@DEFINE(JSDIR,'./');
/* Supplimental functions
* This list is a list of supplimental functions that are used throughout PLA. The
* order here IS important - so that files that refer to functions defined in other files
* need to be listed after those files.*/
$pla_function_files = array(
# Functions for talking to LDAP servers.
LIBDIR.'server_functions.php',
# Functions for sending syslog messages
LIBDIR.'syslog.php',
# The base English language strings
LANGDIR.'recoded/en.php',
# Functions for managing the session (pla_session_start(), etc.)
LIBDIR.'session_functions.php',
# Functions for reading the server schema (get_schema_object_classes(), etc.)
LIBDIR.'schema_functions.php',
# Functions that can be defined by the user (preEntryDelete(), postEntryDelete(), etc.)
LIBDIR.'custom_functions.php',
# Functions for template manipulation.
LIBDIR.'template_functions.php',
# Functions for hashing passwords with OpenSSL binary (only if mhash not present)
LIBDIR.'emuhash_functions.php',
# Functions for running various hooks
LIBDIR.'hooks.php',
# Functions for timeout and automatic logout feature
LIBDIR.'timeout_functions.php'
);
/**
* Determines if an attribute's value can contain multiple lines. Attributes that fall
* in this multi-line category may be configured in config.php. Hence, this function
* accesses the global variable $config->custom->appearance['multi_line_attributes'];
*
* Usage example:
* <code>
* if( is_muli_line_attr( "postalAddress" ) )
* echo "<textarea name=\"postalAddress\"></textarea>";
* else
* echo "<input name=\"postalAddress\" type=\"text\">";
* </code>
*
* @param string $attr_name The name of the attribute of interestd (case insensivite)
* @param string $val (optional) The current value of the attribute (speeds up the
* process by searching for carriage returns already in the attribute value)
* @param int $server_id (optional) The ID of the server of interest. If specified,
* is_multi_line_attr() will read the schema from the server to determine if
* the attr is multi-line capable. (note that schema reads can be expensive,
* but that impact is lessened due to PLA's new caching mechanism)
* @return bool
* @todo Move this to an LDAPServer object method.
*/
function is_multi_line_attr( $attr_name, $val=null, $server_id=null ) {
debug_log(sprintf('is_multi_line_attr(): Entered with (%s,%s,%s)',$attr_name,$val,$server_id),2);
global $config, $ldapservers;
$multi_line_attributes = $config->GetValue('appearance','multi_line_attributes');
$multi_line_syntax_oids = $config->GetValue('appearance','multi_line_syntax_oids');
# Set default return
$return = false;
// First, check the optional val param for a \n or a \r
if (! is_null($val) && (false !== strpos($val,"\n") || false !== strpos($val,"\r")))
$return = true;
// Next, compare strictly by name first
else
foreach ($multi_line_attributes as $multi_line_attr_name)
if (strcasecmp($multi_line_attr_name,$attr_name) == 0) {
$return = true;
break;
}
// If unfound, compare by syntax OID
if (! $return && ! is_null($server_id)) {
$ldapserver = $ldapservers->Instance($server_id);
$schema_attr = get_schema_attribute($ldapserver,$attr_name);
if ($schema_attr) {
$syntax_oid = $schema_attr->getSyntaxOID();
if ($syntax_oid)
foreach($multi_line_syntax_oids as $multi_line_syntax_oid)
if ($multi_line_syntax_oid == $syntax_oid) {
$return = true;
break;
}
}
}
debug_log(sprintf('is_multi_line_attr(): Returning (%s)',$return),1);
return $return;
}
/**
* Fetches the user setting for $view_deref from config.php. The returned value
* will be one of the four LDAP_DEREF_* constancts defined by the PHP LDAP API. If
* the user has failed to configure this setting or configured an inappropriate
* value, the constant DEFAULT_VIEW_DEREF_SETTING is returned.
*
* @return int
* @deprecated
*/
function get_view_deref_setting() {
global $config;
return $config->GetValue('deref','view');
}
/**
* Fetches whether the user has configured phpLDAPadmin to obfuscate passwords
* with "*********" when displaying them.
*
* This is configured in config.php thus:
* <code>
* $obfuscate_password_display = true;
* </code>
*
* @param string $enc Password encoding type
* @return bool
*/
function obfuscate_password_display($enc=null) {
debug_log(sprintf('obfuscate_password_display(): Entered with ()'),2);
global $config;
if ($config->GetValue('appearance','obfuscate_password_display'))
$return = true;
elseif (! $config->GetValue('appearance','show_clear_password') && (is_null($enc) || $enc == 'clear'))
$return = true;
else
$return = false;
debug_log(sprintf('obfuscate_password_display(): Returning (%s)',$return),1);
return $return;
}
/**
* Returns an HTML-beautified version of a DN.
* Internally, this function makes use of pla_explode_dn() to break the
* the DN into its components. It then glues them back together with
* "pretty" HTML. The returned HTML is NOT to be used as a real DN, but
* simply displayed.
*
* @param string $dn The DN to pretty-print.
* @return string
*/
function pretty_print_dn( $dn ) {
debug_log(sprintf('pretty_print_dn(): Entered with (%s)',$dn),2);
$dn = pla_explode_dn( $dn );
foreach( $dn as $i => $element ) {
$element = htmlspecialchars( $element );
$element = explode( '=', $element, 2 );
$element = implode( '<span style="color: blue; font-family: courier; font-weight: bold">=</span>', $element );
$dn[$i] = $element;
}
$dn = implode( '<span style="color:red; font-family:courier; font-weight: bold;">,</span>', $dn );
return $dn;
}
/**
* Returns true if the attribute specified is required to take as input a DN.
* Some examples include 'distinguishedName', 'member' and 'uniqueMember'.
* @param int $server_id The ID of the server of interest
* (required since this operation demands a schema lookup)
* @param string $attr_name The name of the attribute of interest (case insensitive)
* @return bool
* @todo Move this to an LDAPServer object method.
*/
function is_dn_attr( $ldapserver, $attr_name ) {
debug_log(sprintf('is_dn_attr(): Entered with (%s,%s)',$ldapserver->server_id,$attr_name),2);
// Simple test first
$dn_attrs = array( "aliasedObjectName" );
foreach( $dn_attrs as $dn_attr )
if( 0 == strcasecmp( $attr_name, $dn_attr ) )
return true;
// Now look at the schema OID
$attr_schema = get_schema_attribute( $ldapserver, $attr_name );
if( ! $attr_schema )
return false;
$syntax_oid = $attr_schema->getSyntaxOID();
if( '1.3.6.1.4.1.1466.115.121.1.12' == $syntax_oid )
return true;
if( '1.3.6.1.4.1.1466.115.121.1.34' == $syntax_oid )
return true;
$syntaxes = get_schema_syntaxes( $ldapserver );
if( ! isset( $syntaxes[ $syntax_oid ] ) )
return false;
$syntax_desc = $syntaxes[ $syntax_oid ]->getDescription();
if( false !== strpos( strtolower($syntax_desc), 'distinguished name' ) )
return true;
return false;
}
/**
* Given a string, this function returns true if the string has the format
* of a DN (ie, looks like "cn=Foo,dc=example,dc=com"). Returns false otherwise.
* The purpose of this function is so that developers can examine a string and
* know if it looks like a DN, and draw a hyperlink as needed.
*
* (See unit_test.php for test cases)
*
* @param string $attr The attribute to examine for "DNness"
* @see unit_test.php
* @return bool
*/
function is_dn_string( $str ) {
debug_log(sprintf('is_dn_string(): Entered with (%s)',$str),2);
// Try to break the string into its component parts if it can be done
// ie, "uid=Manager" "dc=example" and "dc=com"
$parts = pla_explode_dn( $str );
if( ! is_array( $parts ) )
return false;
if( 0 == count( $parts ) )
return false;
// Foreach of the "parts", look for an "=" character,
// and make sure neither the left nor the right is empty
foreach( $parts as $part ) {
if( false === strpos( $part, "=" ) )
return false;
$sub_parts = explode( "=", $part, 2 );
$left = $sub_parts[0];
$right = $sub_parts[1];
if( 0 == strlen( trim( $left ) ) || 0 == strlen( trim( $right ) ) )
return false;
if( false !== strpos( $left, '#' ) )
return false;
}
// We survived the above rigor. This is a bonified DN string.
return true;
}
/**
* Get whether a string looks like an email address (user@example.com).
*
* @param string $str The string to analyze.
* @return bool Returns true if the specified string looks like
* an email address or false otherwise.
*/
function is_mail_string( $str ) {
debug_log(sprintf('is_mail_string(): Entered with (%s)',$str),2);
$mail_regex = "/^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9-]+)*$/";
if( preg_match( $mail_regex, $str ) )
return true;
else
return false;
}
/**
* Get whether a string looks like a web URL (http://www.example.com/)
*
* @param string $str The string to analyze.
* @return bool Returns true if the specified string looks like
* a web URL or false otherwise.
*/
function is_url_string( $str ) {
debug_log(sprintf('is_url_string(): Entered with (%s)',$str),2);
$url_regex = '/(ftp|https?):\/\/+[\w\.\-\/\?\=\&]*\w+/';
if( preg_match( $url_regex, $str ) )
return true;
else
return false;
}
/**
* Utility wrapper for setting cookies, which takes into consideration
* phpLDAPadmin configuration values. On success, true is returned. On
* failure, false is returned.
*
* @param string $name The name of the cookie to set.
* @param string $val The value of the cookie to set.
* @param int $expire (optional) The duration in seconds of this cookie. If unspecified, $cookie_time
* is used from config.php
* @param string $dir (optional) The directory value of this cookie (see php.net/setcookie)
*
* @see setcookie
* @return bool
*/
function pla_set_cookie( $name, $val, $expire=null, $dir=null ) {
debug_log(sprintf('pla_set_cookie(): Entered with (%s,%s,%s,%s)',$name,$val,$expire,$dir),2);
global $config;
# Set default return
$return = false;
if ($expire == null) {
$cookie_time = $config->GetValue('session','cookie_time');
$expire = $cookie_time == 0 ? null : time() + $cookie_time;
}
if ($dir == null)
$dir = dirname( $_SERVER['PHP_SELF'] );
if (@setcookie($name,$val,$expire,$dir)) {
$_COOKIE[$name] = $val;
$return = true;
}
debug_log(sprintf('pla_set_cookie(): Returning (%s)',$return),1);
return $return;
}
/**
* Responsible for setting two cookies/session-vars to indicate that a user has logged in,
* one for the logged in DN and one for the logged in password.
*
* This function is only used if 'auth_type' is set to 'cookie' or 'session'. The values
* written have the name "pla_login_dn_X" and "pla_login_pass_X" where X is the
* ID of the server to which the user is attempting login.
*
* Note that as with all cookie/session operations this function must be called BEFORE
* any output is sent to the browser.
*
* On success, true is returned. On failure, false is returned.
*
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @param string $dn The DN with which the user has logged in.
* @param string $password The password of the user logged in.
* @param bool $anon_bind Indicates that this is an anonymous bind such that
* a password of "0" is stored.
* @return bool
* @see unset_login_dn
*/
function set_login_dn($ldapserver,$dn,$password,$anon_bind) {
debug_log(sprintf('set_login_dn(): Entered with (%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$password,$anon_bind),2);
if (! $ldapserver->auth_type)
return false;
switch( $ldapserver->auth_type )
{
case 'cookie':
$cookie_dn_name = sprintf("pla_login_dn_%s",$ldapserver->server_id);
$cookie_pass_name = sprintf("pla_login_pass_%s",$ldapserver->server_id);
// we set the cookie password to 0 for anonymous binds.
if( $anon_bind ) {
$dn = 'anonymous';
$password = '0';
}
$res1 = pla_set_cookie( $cookie_dn_name, pla_blowfish_encrypt( $dn ) );
$res2 = pla_set_cookie( $cookie_pass_name, pla_blowfish_encrypt( $password ) );
if( $res1 && $res2 )
return true;
else
return false;
break;
case 'session':
$sess_var_dn_name = sprintf("pla_login_dn_%s",$ldapserver->server_id);
$sess_var_pass_name = sprintf("pla_login_pass_%s",$ldapserver->server_id);
// we set the cookie password to 0 for anonymous binds.
if( $anon_bind ) {
$dn = 'anonymous';
$password = '0';
}
$_SESSION[ $sess_var_dn_name ] = pla_blowfish_encrypt( $dn );
$_SESSION[ $sess_var_pass_name ] = pla_blowfish_encrypt ( $password );
return true;
break;
default:
global $lang;
pla_error( sprintf( $lang['unknown_auth_type'], htmlspecialchars( $ldapserver->auth_type ) ) );
break;
}
}
/**
* Log a user out of the LDAP server.
*
* Removes the cookies/session-vars set by set_login_dn()
* after a user logs out using "auth_type" of "session" or "cookie".
* Returns true on success, false on failure.
*
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @return bool True on success, false on failure.
* @see set_login_dn
*/
function unset_login_dn( $ldapserver ) {
debug_log(sprintf('unset_login_dn(): Entered with (%s)',$ldapserver->server_id),2);
if (! $ldapserver->auth_type)
return false;
switch( $ldapserver->auth_type )
{
case 'cookie':
$logged_in_dn = get_logged_in_dn( $ldapserver );
if( ! $logged_in_dn )
return false;
$logged_in_pass = get_logged_in_pass( $ldapserver );
$anon_bind = $logged_in_dn == 'anonymous' ? true : false;
// set cookie with expire time already passed to erase cookie from client
$expire = time()-3600;
$cookie_dn_name = sprintf("pla_login_dn_%s",$ldapserver->server_id);
$cookie_pass_name = sprintf("pla_login_pass_%s",$ldapserver->server_id);
if( $anon_bind ) {
$res1 = pla_set_cookie( $cookie_dn_name, 'anonymous', $expire );
$res2 = pla_set_cookie( $cookie_pass_name, '0', $expire );
} else {
$res1 = pla_set_cookie( $cookie_dn_name, pla_blowfish_encrypt( $logged_in_dn ), $expire );
$res2 = pla_set_cookie( $cookie_pass_name, pla_blowfish_encrypt( $logged_in_pass ), $expire );
}
# Need to unset the cookies too, since they are still set if further processing occurs (eg: Timeout)
unset($_COOKIE[$cookie_dn_name]);
unset($_COOKIE[$cookie_pass_name]);
if( ! $res1 || ! $res2 )
return false;
else
return true;
break;
case 'session':
// unset session variables
$session_var_dn_name = sprintf("pla_login_dn_%s",$ldapserver->server_id);
$session_var_pass_name = sprintf("pla_login_pass_%s",$ldapserver->server_id);
if( array_key_exists( $session_var_dn_name, $_SESSION ) )
unset( $_SESSION[ $session_var_dn_name ] );
if( array_key_exists( $session_var_pass_name, $_SESSION ) )
unset( $_SESSION[ "$session_var_pass_name" ] );
session_write_close();
return true;
break;
default:
global $lang;
pla_error( sprintf( $lang['unknown_auth_type'], htmlspecialchars( $auth_type ) ) );
break;
}
}
/**
* Get a customized file for a server
* We don't need any caching, because it's done by PHP
*
* @param int $server_id The ID of the server
* @param string $filename The requested filename
*
* @return string The customized filename, if exists, or the standard one
*/
function get_custom_file($server_id,$filename,$path) {
debug_log(sprintf('get_custom_file(): Entered with (%s,%s,%s)',$server_id,$filename,$path),2);
global $ldapservers;
# Set default return
$return = $path.$filename;
$custom = $ldapservers->GetValue($server_id,'custom','pages_prefix');
if (! is_null($custom) && is_file(realpath($path.$custom.$filename)))
$return = $path.$custom.$filename;
debug_log(sprintf('get_custom_file(): Returning (%s)',$return),1);
return $return;
}
/**
* Call a customized function
*
* @param int $server_id The ID of the server
* @param string $filename The requested function
*
* @return any The result of the called function
*/
function call_custom_function( $server_id, $function ) {
debug_log(sprintf('call_custom_function(): Entered with (%s,%s)',$server_id,$function),2);
global $ldapservers;
# Set default return
$return = $function;
$custom = $ldapservers->GetValue($server_id,'custom','pages_prefix');
if (! is_null($custom) && function_exists($custom.$function))
$return = $custom.$filename;
debug_log(sprintf('get_custom_file(): Returning (%s)',$return),1);
return call_user_func($return );
}
/**
* Compares 2 DNs. If they are equivelant, returns 0, otherwise,
* returns their sorting order (similar to strcmp()):
* Returns < 0 if dn1 is less than dn2.
* Returns > 0 if dn1 is greater than dn2.
*
* The comparison is performed starting with the top-most element
* of the DN. Thus, the following list:
* <code>
* ou=people,dc=example,dc=com
* cn=Admin,ou=People,dc=example,dc=com
* cn=Joe,ou=people,dc=example,dc=com
* dc=example,dc=com
* cn=Fred,ou=people,dc=example,dc=org
* cn=Dave,ou=people,dc=example,dc=org
* </code>
* Will be sorted thus using usort( $list, "pla_compare_dns" ):
* <code>
* dc=com
* dc=example,dc=com
* ou=people,dc=example,dc=com
* cn=Admin,ou=People,dc=example,dc=com
* cn=Joe,ou=people,dc=example,dc=com
* cn=Dave,ou=people,dc=example,dc=org
* cn=Fred,ou=people,dc=example,dc=org
* </code>
*
* @param string $dn1 The first of two DNs to compare
* @param string $dn2 The second of two DNs to compare
* @return int
*/
function pla_compare_dns( $dn1, $dn2 ) {
debug_log(sprintf('pla_compare_dns(): Entered with (%s,%s)',$dn1,$dn2),2);
// If they are obviously the same, return immediately
if( 0 === strcasecmp( $dn1, $dn2 ) )
return 0;
$dn1_parts = pla_explode_dn( pla_reverse_dn($dn1) );
$dn2_parts = pla_explode_dn( pla_reverse_dn($dn2) );
assert( is_array( $dn1_parts ) );
assert( is_array( $dn2_parts ) );
// Foreach of the "parts" of the smaller DN
for( $i=0; $i<count( $dn1_parts ) && $i<count( $dn2_parts ); $i++ )
{
// dnX_part is of the form: "cn=joe" or "cn = joe" or "dc=example"
// ie, one part of a multi-part DN.
$dn1_part = $dn1_parts[$i];
$dn2_part = $dn2_parts[$i];
// Each "part" consists of two sub-parts:
// 1. the attribute (ie, "cn" or "o")
// 2. the value (ie, "joe" or "example")
$dn1_sub_parts = explode( '=', $dn1_part, 2 );
$dn2_sub_parts = explode( '=', $dn2_part, 2 );
$dn1_sub_part_attr = trim( $dn1_sub_parts[0] );
$dn2_sub_part_attr = trim( $dn2_sub_parts[0] );
if( 0 != ( $cmp = strcasecmp( $dn1_sub_part_attr, $dn2_sub_part_attr ) ) )
return $cmp;
$dn1_sub_part_val = trim( $dn1_sub_parts[1] );
$dn2_sub_part_val = trim( $dn2_sub_parts[1] );
if( 0 != ( $cmp = strcasecmp( $dn1_sub_part_val, $dn2_sub_part_val ) ) )
return $cmp;
}
// If we iterated through all entries in the smaller of the two DNs
// (ie, the one with fewer parts), and the entries are different sized,
// then, the smaller of the two must be "less than" than the larger.
if( count($dn1_parts) > count($dn2_parts) ) {
return 1;
} elseif( count( $dn2_parts ) > count( $dn1_parts ) ) {
return -1;
} else {
return 0;
}
}
/**
* Prunes off anything after the ";" in an attr name. This is useful for
* attributes that may have ";binary" appended to their names. With
* real_attr_name(), you can more easily fetch these attributes' schema
* with their "real" attribute name.
*
* @param string $attr_name The name of the attribute to examine.
* @return string
*/
function real_attr_name( $attr_name ) {
debug_log(sprintf('real_attr_name(): Entered with (%s)',$attr_name),2);
$attr_name = preg_replace( "/;.*$/U", "", $attr_name );
return $attr_name;
}
/**
* Returns true if the user has configured PLA to show
* helpful hints with the $show_hints setting.
* This is configured in config.php thus:
* <code>
* $show_hints = true;
* </code>
*
* @return bool
* @deprecated
*/
function show_hints() {
global $config;
return $config->GetValue('appearance','show_hints');
}
/**
* Determines if the user has enabled auto uidNumbers for the specified server ID.
*
* @param int $server_id The id of the server of interest.
* @return bool True if auto uidNumbers are enabled, false otherwise.
*/
function auto_uid_numbers_enabled($server_id) {
debug_log(sprintf('auto_uid_numbers_enabled(): Entered with (%s)',$server_id),2);
global $ldapservers;
return $ldapservers->GetValue($server_id,'auto_number','enable');
}
/**
* For hosts who have 'enable_auto_uid_numbers' set to true, this function will
* get the next available uidNumber using the host's preferred mechanism
* (uidpool or search). The uidpool mechanism uses a user-configured entry in
* the LDAP server to store the last used uidNumber. This mechanism simply fetches
* and increments and returns that value. The search mechanism is more complicated
* and slow. It searches all entries that have uidNumber set, finds the smalles and
* "fills in the gaps" by incrementing the smallest uidNumber until an unused value
* is found. Both mechanisms do NOT prevent race conditions or toe-stomping, so
* care must be taken when actually creating the entry to check that the uidNumber
* returned here has not been used in the mean time. Note that the two different
* mechanisms may (will!) return different values as they use different algorithms
* to arrive at their result. Do not be alarmed if (when!) this is the case.
*
* Also note that both algorithms are susceptible to a race condition. If two admins
* are adding users simultaneously, the users may get identical uidNumbers with this
* function.
*
* See config.php.example for more notes on the two auto uidNumber mechanisms.
*
* @param object $ldapserver The LDAP Server Object of interest.
* @return int
*
* @todo take advantage of multiple connections with new LDAPServer object.
* @todo rename this function as its a generic get_next_number function now.
* @todo Must turn off auto_uid|gid in template if config is disabled.
*/
function get_next_uid_number($ldapserver,$startbase='',$type='uid') {
global $config; $config->custom->debug['level'] = 9; $config->custom->debug['syslog'] = true;
debug_log(sprintf('get_next_uid_number(): Entered with (%s,%s,%s)',$ldapserver->server_id,$startbase,$type),2);
global $ldapservers,$servers,$lang;
if (! auto_uid_numbers_enabled($ldapserver->server_id))
return false;
# Based on the configured mechanism, go get the next available uidNumber!
$mechanism = $ldapservers->GetValue($ldapserver->server_id,'auto_number','mechanism');
switch ($mechanism) {
// @todo: This is being deprecated - unless somebody wants it?
case 'uidpool' :
if( ! isset( $servers[ $ldapserver->server_id ][ 'auto_uid_number_uid_pool_dn' ] ) )
pla_error( sprintf( $lang['uidpool_not_set'], $ldapserver->name ) );
$uid_pool_dn = $servers[ $ldapserver->server_id ][ 'auto_uid_number_uid_pool_dn' ];
if( ! dn_exists( $ldapserver, $uid_pool_dn ) )
pla_error( sprintf( $lang['uidpool_not_exist'] , $uid_pool_dn ) );
$next_uid_number = get_object_attr( $ldapserver, $uid_pool_dn, 'uidNumber' );
$next_uid_number = intval( $next_uid_number[ 0 ] );
$next_uid_number++;
return $next_uid_number;
break;
case 'search' :
if (! $startbase) {
$base_dn = $ldapservers->GetValue($ldapserver->server_id,'auto_number','search_base');
if (is_null($base_dn))
pla_error( sprintf( $lang['specified_uidpool'] , $ldapserver->name ) );
} else {
$base_dn = $startbase;
}
$filter = "(|(uidNumber=*)(gidNumber=*))";
$results = array();
# Check see and use our alternate uid_dn and password if we have it.
if (! is_null($ldapservers->GetValue($ldapserver->server_id,'auto_number','dn')) &&
! is_null($ldapservers->GetValue($ldapserver->server_id,'auto_number','pass'))) {
$con = @ldap_connect($ldapserver->host,$ldapserver->port);
@ldap_set_option($con,LDAP_OPT_PROTOCOL_VERSION,3);
@ldap_set_option($con,LDAP_OPT_REFERRALS,0);
# Bind with the alternate ID.
$res = @ldap_bind($con,
$ldapservers->GetValue($ldapserver->server_id,'auto_number','dn'),
$ldapservers->GetValue($ldapserver->server_id,'auto_number','pass'));
if (! $res)
pla_error(sprintf($lang['auto_uid_invalid_credential'],$ldapserver->name));
$search = @ldap_search($con,$base_dn,$filter,array('uidNumber','gidNumber'),0,0,0,
$config->GetValue('deref','search'));
if (! $search)
pla_error(sprintf($lang['bad_auto_uid_search_base'],$ldapserver->name));
$search = @ldap_get_entries($con,$search);
$res = @ldap_unbind($con);
for ($i = 0;$i < $search['count']; $i++ ) {
$attrs = $search[$i];
switch ($type) {
case 'uid' :
if (isset($attrs['uidnumber'])) {
$entry['dn'] = $attrs['dn'];
$entry['uniqnumber'] = $attrs['uidnumber'][0];
}
break;
case 'gid' :
if (isset($attrs['gidnumber'])) {
$entry['dn'] = $attrs['dn'];
$entry['uniqnumber'] = $attrs['gidnumber'][0];
}
break;
}
$results[] = $entry;
}
} else {
$search = pla_ldap_search( $ldapserver, $filter, $base_dn, array('uidNumber','gidNumber'));
foreach ($search as $dn => $attrs) {
switch ($type) {
case 'uid' :
if (isset($attrs['uidNumber'])) {
$entry['dn'] = $attrs['dn'];
$entry['uniqnumber'] = $attrs['uidNumber'];
}
break;
case 'gid' :
if (isset($attrs['gidNumber'])) {
$entry['dn'] = $attrs['dn'];
$entry['uniqnumber'] = $attrs['gidNumber'];
}
break;
}
$results[] = $entry;
}
}
# construct a list of used numbers
$autonum = array();
foreach ($results as $result)
$autonum[] = $result['uniqnumber'];
$autonum = array_unique($autonum);
if (count($autonum) == 0)
return false;
sort($autonum);
foreach($autonum as $uid)
$uid_hash[$uid] = 1;
# start with the least existing autoNumber and add 1
if ($ldapservers->GetValue($ldapserver->server_id,'auto_number','min'))
$minNumber = $ldapservers->GetValue($ldapserver->server_id,'auto_number','min');
else
$minNumber = intval($autonum[0]) + 1;
# this loop terminates as soon as we encounter the next available minNumber
while (isset($uid_hash[$minNumber]))
$minNumber++;
return $minNumber;
break;
# No other cases allowed. The user has an error in the configuration
default :
pla_error( sprintf( $lang['auto_uid_invalid_value'] , $mechanism) );
}
}
/**
* Used to determine if the specified attribute is indeed a jpegPhoto. If the
* specified attribute is one that houses jpeg data, true is returned. Otherwise
* this function returns false.
*
* @param int $server_id The ID of the server hosuing the attribute of interest
* @param string $attr_name The name of the attribute to test.
* @return bool
* @see draw_jpeg_photos
* @todo Move this to an LDAPServer object method.
*/
function is_jpeg_photo( $ldapserver, $attr_name ) {
debug_log(sprintf('is_jpeg_photo(): Entered with (%s,%s)',$ldapserver->server_id,$attr_name),2);
// easy quick check
if( 0 == strcasecmp( $attr_name, 'jpegPhoto' ) ||
0 == strcasecmp( $attr_name, 'photo' ) )
return true;
// go to the schema and get the Syntax OID
// require_once realpath( 'schema_functions.php' );
$schema_attr = get_schema_attribute( $ldapserver, $attr_name );
if( ! $schema_attr )
return false;
$oid = $schema_attr->getSyntaxOID();
$type = $schema_attr->getType();
if( 0 == strcasecmp( $type, 'JPEG' ) )
return true;
if( $oid == '1.3.6.1.4.1.1466.115.121.1.28' )
return true;
return false;
}
/**
* Given an attribute name and server ID number, this function returns
* whether the attrbiute contains boolean data. This is useful for
* developers who wish to display the contents of a boolean attribute
* with a drop-down.
*
* @param int $server_id The ID of the server of interest (required since
* this action requires a schema lookup on the server)
* @param string $attr_name The name of the attribute to test.
* @return bool
* @todo Move this to an LDAPServer object method.
*/
function is_attr_boolean( $ldapserver, $attr_name ) {
debug_log(sprintf('is_attr_boolean(): Entered with (%s,%s)',$ldapserver->server_id,$attr_name),2);
$type = ( $schema_attr = get_schema_attribute( $ldapserver, $attr_name ) ) ?
$schema_attr->getType() : null;
if( 0 == strcasecmp( 'boolean', $type ) ||
0 == strcasecmp( 'isCriticalSystemObject', $attr_name ) ||
0 == strcasecmp( 'showInAdvancedViewOnly', $attr_name ) )
return true;
else
return false;
}
/**
* Given an attribute name and server ID number, this function returns
* whether the attrbiute may contain binary data. This is useful for
* developers who wish to display the contents of an arbitrary attribute
* but don't want to dump binary data on the page.
*
* @param int $server_id The ID of the server of interest (required since
* this action requires a schema lookup on the server)
* @param string $attr_name The name of the attribute to test.
* @return bool
*
* @see is_jpeg_photo
* @todo Move this to an LDAPServer object method.
*/
function is_attr_binary( $ldapserver, $attr_name ) {
debug_log(sprintf('is_attr_binary(): Entered with (%s,%s)',$ldapserver->server_id,$attr_name),2);
$attr_name = strtolower( $attr_name );
/**
* Determining if an attribute is binary can be an expensive operation.
* We cache the results for each attr name on each server in the $attr_cache
* to speed up subsequent calls. The $attr_cache looks like this:
*
* Array
* 0 => Array
* 'objectclass' => false
* 'cn' => false
* 'usercertificate' => true
* 1 => Array
* 'jpegphoto' => true
* 'cn' => false
*/
static $attr_cache;
if( isset( $attr_cache[ $ldapserver->server_id ][ $attr_name ] ) )
return $attr_cache[ $ldapserver->server_id ][ $attr_name ];
if( $attr_name == 'userpassword' ) {
$attr_cache[ $ldapserver->server_id ][ $attr_name ] = false;
return false;
}
// Quick check: If the attr name ends in ";binary", then it's binary.
if( 0 == strcasecmp( substr( $attr_name, strlen( $attr_name ) - 7 ), ";binary" ) ) {
$attr_cache[ $ldapserver->server_id ][ $attr_name ] = true;
return true;
}
// See what the server schema says about this attribute
$schema_attr = get_schema_attribute( $ldapserver, $attr_name );
if( ! $schema_attr ) {
// Strangely, some attributeTypes may not show up in the server
// schema. This behavior has been observed in MS Active Directory.
$type = null;
$syntax = null;
} else {
$type = $schema_attr->getType();
$syntax = $schema_attr->getSyntaxOID();
}
if( 0 == strcasecmp( $type, 'Certificate' ) ||
0 == strcasecmp( $type, 'Binary' ) ||
0 == strcasecmp( $attr_name, 'usercertificate' ) ||
0 == strcasecmp( $attr_name, 'usersmimecertificate' ) ||
0 == strcasecmp( $attr_name, 'networkaddress' ) ||
0 == strcasecmp( $attr_name, 'objectGUID' ) ||
0 == strcasecmp( $attr_name, 'objectSID' ) ||
$syntax == '1.3.6.1.4.1.1466.115.121.1.10' ||
$syntax == '1.3.6.1.4.1.1466.115.121.1.28' ||
$syntax == '1.3.6.1.4.1.1466.115.121.1.5' ||
$syntax == '1.3.6.1.4.1.1466.115.121.1.8' ||
$syntax == '1.3.6.1.4.1.1466.115.121.1.9' ) {
$attr_cache[ $ldapserver->server_id ][ $attr_name ] = true;
return true;
} else {
$attr_cache[ $ldapserver->server_id ][ $attr_name ] = false;
return false;
}
}
/**
* Returns true if the specified attribute is configured as read only
* in config.php with the $read_only_attrs array.
* Attributes are configured as read-only in config.php thus:
* <code>
* $read_only_attrs = array( "objectClass", "givenName" );
* </code>
*
* @param string $attr The name of the attribute to test.
* @return bool
* @todo Move this to an LDAPServer object method.
*/
function is_attr_read_only( $ldapserver, $attr ) {
debug_log(sprintf('is_attr_read_only(): Entered with (%s,%s)',$ldapserver->server_id,$attr),2);
global $read_only_attrs, $read_only_except_dn;
$attr = trim( $attr );
if( '' === $attr )
return false;
if( ! isset( $read_only_attrs ) )
return false;
if( ! is_array( $read_only_attrs) )
return false;
// Is the user excluded?
if (isset($read_only_except_dn) && userIsMember($ldapserver, get_logged_in_dn( $ldapserver ),$read_only_except_dn))
return false;
foreach( $read_only_attrs as $attr_name )
if( 0 == strcasecmp( $attr, trim($attr_name) ) )
return true;
return false;
}
/**
* Returns true if the specified attribute is configured as hidden
* in config.php with the $hidden_attrs array or the $hidden_attrs_ro
* array.
* Attributes are configured as hidden in config.php thus:
* <code>
* $hidden_attrs = array( "objectClass", "givenName" );
* </code>
* or
* <code>
* $hidden_attrs_ro = array( "objectClass", "givenName", "shadowWarning",
* "shadowLastChange", "shadowMax", "shadowFlag",
* "shadowInactive", "shadowMin", "shadowExpire" );
* </code>
*
* @param string $attr The name of the attribute to test.
* @return bool
*/
function is_attr_hidden( $ldapserver, $attr ) {
debug_log(sprintf('is_attr_hidden(): Entered with (%s,%s)',$ldapserver->server_id,$attr),2);
global $hidden_attrs, $hidden_attrs_ro, $hidden_except_dn;
$attr = trim( $attr );
if( '' === $attr )
return false;
if( ! isset( $hidden_attrs ) )
return false;
if( ! is_array( $hidden_attrs) )
return false;
if( ! isset( $hidden_attrs_ro ) )
$hidden_attrs_ro = $hidden_attrs;
if( ! is_array( $hidden_attrs_ro) )
$hidden_attrs_ro = $hidden_attrs;
// Is the user excluded?
if (isset($hidden_except_dn) && userIsMember($ldapserver, get_logged_in_dn( $ldapserver ),$hidden_except_dn))
return false;
if( $ldapserver->isReadOnly() ) {
foreach( $hidden_attrs_ro as $attr_name )
if( 0 == strcasecmp( $attr, trim($attr_name) ) )
return true;
} else {
foreach( $hidden_attrs as $attr_name )
if( 0 == strcasecmp( $attr, trim($attr_name) ) )
return true;
}
return false;
}
/**
* Returns true if the specified server is configured to be displayed
* in read only mode. If a user has logged in via anonymous bind, and
* config.php specifies anonymous_bind_implies_read_only as true, then
* this also returns true. Servers can be configured read-only in
* config.php thus:
* <code>
* $server[$i]['read_only'] = true;
* </code>
*
* @param int $server_id The ID of the server of interest from the $servers array in config.php
* @return bool
* @deprecated
*/
function is_server_read_only( $server_id ) {
global $servers;
if( isset( $servers[$server_id]['read_only'] ) &&
$servers[$server_id]['read_only'] == true )
return true;
global $anonymous_bind_implies_read_only;
if( "anonymous" == get_logged_in_dn( $server_id ) &&
isset( $anonymous_bind_implies_read_only ) &&
$anonymous_bind_implies_read_only == true )
return true;
return false;
}
/**
* Given a DN and server ID, this function reads the DN's objectClasses and
* determines which icon best represents the entry. The results of this query
* are cached in a session variable so it is not run every time the tree
* browser changes, just when exposing new DNs that were not displayed
* previously. That means we can afford a little bit of inefficiency here
* in favor of coolness. :)
*
* This function returns a string like "country.png". All icon files are assumed
* to be contained in the /images/ directory of phpLDAPadmin.
*
* Developers are encouraged to add new icons to the images directory and modify
* this function as needed to suit their types of LDAP entries. If the modifications
* are general to an LDAP audience, the phpLDAPadmin team will gladly accept them
* as a patch.
*
* @param int $server_id The ID of the LDAP server housing the DN of interest.
* @param string $dn The DN of the entry whose icon you wish to fetch.
*
* @return string
*/
function get_icon( $ldapserver, $dn ) {
debug_log(sprintf('get_icon(): Entered with (%s,%s)',$ldapserver->server_id,$dn),2);
// fetch and lowercase all the objectClasses in an array
$object_classes = get_object_attr( $ldapserver, $dn, 'objectClass', true );
if( $object_classes === null || $object_classes === false || ! is_array( $object_classes ) )
$object_classes = array();
foreach( $object_classes as $i => $class )
$object_classes[$i] = strtolower( $class );
$rdn = get_rdn( $dn );
$rdn_parts = explode( '=', $rdn, 2 );
$rdn_value = isset( $rdn_parts[0] ) ? $rdn_parts[0] : null;
$rdn_attr = isset( $rdn_parts[1] ) ? $rdn_parts[1] : null;
unset( $rdn_parts );
// return icon filename based upon objectClass value
if( in_array( 'sambaaccount', $object_classes ) &&
'$' == $rdn{ strlen($rdn) - 1 } )
return 'nt_machine.png';
if( in_array( 'sambaaccount', $object_classes ) )
return 'nt_user.png';
elseif( in_array( 'person', $object_classes ) ||
in_array( 'organizationalperson', $object_classes ) ||
in_array( 'inetorgperson', $object_classes ) ||
in_array( 'account', $object_classes ) ||
in_array( 'posixaccount', $object_classes ) )
return 'user.png';
elseif( in_array( 'organization', $object_classes ) )
return 'o.png';
elseif( in_array( 'organizationalunit', $object_classes ) )
return 'ou.png';
elseif( in_array( 'organizationalrole', $object_classes ) )
return 'uid.png';
elseif( in_array( 'dcobject', $object_classes ) ||
in_array( 'domainrelatedobject', $object_classes ) ||
in_array( 'domain', $object_classes ) ||
in_array( 'builtindomain', $object_classes ))
return 'dc.png';
elseif( in_array( 'alias', $object_classes ) )
return 'go.png';
elseif( in_array( 'room', $object_classes ) )
return 'door.png';
elseif( in_array( 'device', $object_classes ) )
return 'device.png';
elseif( in_array( 'document', $object_classes ) )
return 'document.png';
elseif( in_array( 'country', $object_classes ) ) {
$tmp = pla_explode_dn( $dn );
$cval = explode( '=', $tmp[0], 2 );
$cval = isset( $cval[1] ) ? $cval[1] : false;
if( $cval && false === strpos( $cval, ".." ) &&
file_exists( realpath( sprintf("./images/countries/%s.png",strtolower($cval)) ) ) )
return sprintf("countries/%s.png",strtolower($cval));
else
return 'country.png';
}
elseif( in_array( 'jammvirtualdomain', $object_classes ) )
return 'mail.png';
elseif( in_array( 'locality', $object_classes ) )
return 'locality.png';
elseif( in_array( 'posixgroup', $object_classes ) ||
in_array( 'groupofnames', $object_classes ) ||
in_array( 'group', $object_classes ) )
return 'ou.png';
elseif( in_array( 'applicationprocess', $object_classes ) )
return 'process.png';
elseif( in_array( 'groupofuniquenames', $object_classes ) )
return 'uniquegroup.png';
elseif( in_array( 'iphost', $object_classes ) )
return 'host.png';
elseif( in_array( 'nlsproductcontainer', $object_classes ) )
return 'n.png';
elseif( in_array( 'ndspkikeymaterial', $object_classes ) )
return 'lock.png';
elseif( in_array( 'server', $object_classes ) )
return 'server-small.png';
elseif( in_array( 'volume', $object_classes ) )
return 'hard-drive.png';
elseif( in_array( 'ndscatcatalog', $object_classes ) )
return 'catalog.png';
elseif( in_array( 'resource', $object_classes ) )
return 'n.png';
elseif( in_array( 'ldapgroup', $object_classes ) )
return 'ldap-server.png';
elseif( in_array( 'ldapserver', $object_classes ) )
return 'ldap-server.png';
elseif( in_array( 'nisserver', $object_classes ) )
return 'ldap-server.png';
elseif( in_array( 'rbscollection', $object_classes ) )
return 'ou.png';
elseif( in_array( 'dfsconfiguration', $object_classes ) )
return 'nt_machine.png';
elseif( in_array( 'applicationsettings', $object_classes ) )
return 'server-settings.png';
elseif( in_array( 'aspenalias', $object_classes ) )
return 'mail.png';
elseif( in_array( 'container', $object_classes ) )
return 'folder.png';
elseif( in_array( 'ipnetwork', $object_classes ) )
return 'network.png';
elseif( in_array( 'samserver', $object_classes ) )
return 'server-small.png';
elseif( in_array( 'lostandfound', $object_classes ) )
return 'find.png';
elseif( in_array( 'infrastructureupdate', $object_classes ) )
return 'server-small.png';
elseif( in_array( 'filelinktracking', $object_classes ) )
return 'files.png';
elseif( in_array( 'automountmap', $object_classes ) ||
in_array( 'automount', $object_classes ) )
return 'hard-drive.png';
elseif( 0 === strpos( $rdn_value, "ipsec" ) ||
0 == strcasecmp( $rdn_value, "IP Security" ) ||
0 == strcasecmp( $rdn_value, "MSRADIUSPRIVKEY Secret" ) ||
0 === strpos( $rdn_value, "BCKUPKEY_" ) )
return 'lock.png';
elseif( 0 == strcasecmp( $rdn_value, "MicrosoftDNS" ) )
return 'dc.png';
// Oh well, I don't know what it is. Use a generic icon.
else
return 'object.png';
}
/**
* Does the same thing as get_icon(), but it tries to fetch the icon name from the
* tree_icons session variable first. If not found, resorts to get_icon() and stores
* the icon nmae in the tree_icons session before returing the icon.
*
* @param int $server_id The ID of the server housing the DN of interest.
* @param string $dn The DN of the entry of interest.
*
* @return string
*
* @see get_icon
*/
function get_icon_use_cache( $ldapserver, $dn ) {
debug_log(sprintf('get_icon_use_cache(): Entered with (%s,%s)',$ldapserver->server_id,$dn),2);
initialize_session_tree();
if( array_key_exists( 'tree_icons', $_SESSION ) ) {
if( array_key_exists( $ldapserver->server_id, $_SESSION['tree_icons'] ) &&
array_key_exists( $dn, $_SESSION['tree_icons'][$ldapserver->server_id] ) ) {
return $_SESSION['tree_icons'][ $ldapserver->server_id ][ $dn ];
} else {
$icon = get_icon( $ldapserver, $dn );
$_SESSION['tree_icons'][ $ldapserver->server_id ][ $dn ] = $icon;
return $icon;
}
}
}
/**
* Given a server_id, returns whether or not we have enough information
* to authenticate against the server. For example, if the user specifies
* auth_type of 'cookie' in the config for that server, it checks the $_COOKIE array to
* see if the cookie username and password is set for the server. If the auth_type
* is 'session', the $_SESSION array is checked.
*
* There are three cases for this function depending on the auth_type configured for
* the specified server. If the auth_type is form or http, then get_logged_in_dn() is
* called to verify that the user has logged in. If the auth_type is config, then the
* $servers array in config.php is checked to ensure that the user has specified
* login information. In any case, if phpLDAPadmin has enough information to login
* to the server, true is returned. Otherwise false is returned.
*
* @param int $server_id
* @return bool
* @see get_logged_in_dn
* @deprecated
*/
function have_auth_info( $server_id )
{
global $servers, $ldapservers;
$ldapserver = $ldapservers->Instance($server_id);
$server = $servers[$server_id];
// For session or cookie auth_types, we check the session or cookie to see if a user has logged in.
if( isset( $server['auth_type'] ) && ( in_array( $server['auth_type'], array( 'session', 'cookie' ) ) ) ) {
// we don't look at get_logged_in_pass() cause it may be null for anonymous binds
// get_logged_in_dn() will never return null if someone is really logged in.
if( get_logged_in_dn( $ldapserver ) )
return true;
else
return false;
}
// whether or not the login_dn or pass is specified, we return
// true here. (if they are blank, we do an anonymous bind anyway)
elseif( ! isset( $server['auth_type'] ) || $server['auth_type'] == 'config' ) {
return true;
}
else {
global $lang;
pla_error( sprintf( $lang['error_auth_type_config'],
htmlspecialchars( $server[ 'auth_type' ] ) ) );
}
}
/**
* Fetches the password of the currently logged in user (for auth_types "form" and "http" only)
* or false if the current login is anonymous.
*
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @return string
* @see have_auth_info
* @see get_logged_in_dn
*/
function get_logged_in_pass( $ldapserver ) {
debug_log(sprintf('get_logged_in_pass(): Entered with (%s)',$ldapserver->server_id),2);
if (! $ldapserver->auth_type)
return false;
switch( $ldapserver->auth_type )
{
case 'cookie':
$cookie_name = sprintf('pla_login_pass_%s',$ldapserver->server_id);
$pass = isset( $_COOKIE[ $cookie_name ] ) ? $_COOKIE[ $cookie_name ] : false;
if( $pass == '0' )
return null;
else
return pla_blowfish_decrypt( $pass );
break;
case 'session':
$session_var_name = sprintf('pla_login_pass_%s',$ldapserver->server_id);
$pass = isset( $_SESSION[ $session_var_name ] ) ? $_SESSION[ $session_var_name ] : false;
if( $pass == '0' )
return null;
else
return pla_blowfish_decrypt ( $pass );
break;
case 'config':
return $ldapserver->login_pass;
break;
default:
global $lang;
pla_error( sprintf( $lang['unknown_auth_type'], htmlspecialchars( $ldapserver->auth_type ) ) );
}
}
/**
* Returns the DN who is logged in currently to the given server, which may
* either be a DN or the string 'anonymous'. This applies only for auth_types
* "form" and "http".
*
* One place where this function is used is the tree viewer:
* After a user logs in, the text "Logged in as: " is displayed under the server
* name. This information is retrieved from this function.
*
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @return string
* @see have_auth_info
* @see get_logged_in_pass
*/
function get_logged_in_dn($ldapserver) {
debug_log(sprintf('get_logged_in_dn(): Entered with (%s)',$ldapserver->server_id),2);
# Set default return
$return = false;
if ($ldapserver->auth_type) {
switch ($ldapserver->auth_type) {
case 'cookie':
$cookie_name = sprintf('pla_login_dn_%s',$ldapserver->server_id);
if (isset($_COOKIE[$cookie_name]))
$return = pla_blowfish_decrypt($_COOKIE[$cookie_name]);
else
$return = false;
break;
case 'session':
$session_var_name = sprintf('pla_login_dn_%s',$ldapserver->server_id);
if (isset($_SESSION[$session_var_name]))
$return = pla_blowfish_decrypt($_SESSION[$session_var_name]);
else
$return = false;
break;
case 'config':
$return = $ldapserver->login_dn;
break;
default:
global $lang;
pla_error(sprintf($lang['unknown_auth_type'],htmlspecialchars($auth_type)));
}
}
debug_log(sprintf('get_logged_in_dn(): Returning (%s)',$return),1);
return $return;
}
/**
* Appends a servers base to a "sub" dn or returns the base.
*
* If $get_base is true, return at least the base, otherwise null.
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @return string|null
* @todo This function no longer return the base, since the LDAP server could have multiple bases.
*/
function expand_dn_with_base( $ldapserver,$sub_dn,$get_base=true ) {
debug_log(sprintf('expand_dn_with_base(): Entered with (%s,%s,%s)',$ldapserver->server_id,$sub_dn,$get_base),2);
$empty_str = ( is_null($sub_dn) || ( ( $len = strlen( trim( $sub_dn ) ) ) == 0 ) );
if ( $empty_str ) {
// If we have no string and want not base
if ( ! $get_base )
return null;
} elseif ( $sub_dn[$len - 1] != ',' )
// If we have a string which doesn't need a base
return $sub_dn;
if( ( $empty_str && $get_base ) || ! $empty_str ) {
if ( $ldapserver->getBaseDN() )
return ( ! $empty_str ) ? $sub_dn . $ldapserver->getBaseDN() : $ldapserver->getBaseDN();
}
return null;
}
/**
* Gets a list of child entries for an entry. Given a DN, this function fetches the list of DNs of
* child entries one level beneath the parent. For example, for the following tree:
*
* <code>
* dc=example,dc=com
* ou=People
* cn=Dave
* cn=Fred
* cn=Joe
* ou=More People
* cn=Mark
* cn=Bob
* </code>
*
* Calling <code>get_container_contents( $server_id, "ou=people,dc=example,dc=com" )</code>
* would return the following list:
*
* <code>
* cn=Dave
* cn=Fred
* cn=Joe
* ou=More People
* </code>
*
* @param object $ldapserver The LDAP Server Object housing the entry of interest
* @param string $dn The DN of the entry whose children to return.
* @param int $size_limit (optional) The maximum number of entries to return.
* If unspecified, no limit is applied to the number of entries in the returned.
* @param string $filter (optional) An LDAP filter to apply when fetching children, example: "(objectClass=inetOrgPerson)"
* @return array An array of DN strings listing the immediate children of the specified entry.
* @todo Move this to an LDAPServer object method.
*/
function get_container_contents( $ldapserver, $dn, $size_limit=0, $filter='(objectClass=*)', $deref=LDAP_DEREF_ALWAYS ) {
debug_log(sprintf('get_container_contents(): Entered with (%s,%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$size_limit,$filter,$deref),2);
$search = @ldap_list( $ldapserver->connect(), $dn, $filter, array( 'dn' ), 1, $size_limit, 0, $deref );
if( ! $search )
return array();
$search = ldap_get_entries( $ldapserver->connect(), $search );
$return = array();
for( $i=0; $i<$search['count']; $i++ ) {
$entry = $search[$i];
$dn = $entry['dn'];
$return[] = $dn;
}
return $return;
}
/**
* Builds the initial tree that is stored in the session variable 'tree'.
* Simply returns an array with an entry for each active server in
* config.php. The structure of the returned array is simple, and looks like
* this:
* <code>
* Array (
* 0 => Array ( )
* 1 => Array ( )
* )
* </code>
* This function is not meant as a user callable function, but rather a convenient,
* automated method for setting up the initial structure for the tree viewer.
*/
function build_initial_tree() {
debug_log(sprintf('build_initial_tree(): Entered with ()'),2);
global $ldapservers;
$return = array();
foreach ($ldapservers->GetServerList() as $id) {
if( $ldapservers->GetValue($id,'server','host') == '' )
continue;
$return[$id] = array();
}
debug_log(sprintf('build_initial_tree(): Returning (%s)',serialize($return)),1);
return $return;
}
/**
* Builds the initial array that stores the icon-lookup for each server's DN in the tree browser. The returned
* array is then stored in the current session. The structure of the returned array is simple, and looks like
* this:
* <code>
* Array
* (
* [0] => Array
* (
* [dc=example,dc=com] => "dcobject.png"
* )
* [1] => Array
* (
* [o=Corporation] => "o.png"
* )
* )
* </code>
* This function is not meant as a user-callable function, but rather a convenient, automated method for
* setting up the initial data structure for the tree viewer's icon cache.
*/
function build_initial_tree_icons() {
debug_log(sprintf('build_initial_tree_icons(): Entered with ()'),2);
global $ldapservers;
$return = array();
# initialize an empty array for each server
foreach ($ldapservers->GetServerList() as $id) {
if( $ldapservers->GetValue($id,'server','host') == '' )
continue;
$ldapserver = $ldapservers->Instance($id);
$return[$id] = array();
foreach ($ldapserver->getBaseDN() as $base_dn)
$return[$id][$base_dn] = get_icon($ldapserver,$base_dn);
}
debug_log(sprintf('build_initial_tree_icons(): Returning (%s)',serialize($return)),1);
return $return;
}
/*
* Checks and fixes an initial session's tree cache if needed.
*
* This function is not meant as a user-callable function, but rather a convenient,
* automated method for checking the initial data structure of the session.
*/
function initialize_session_tree() {
debug_log(sprintf('initialize_session_tree(): Entered with ()'),2);
// From the PHP manual: If you use $_SESSION don't use
// session_register(), session_is_registered() or session_unregister()!
if( ! array_key_exists( 'tree', $_SESSION ) )
$_SESSION['tree'] = build_initial_tree();
if( ! array_key_exists( 'tree_icons', $_SESSION ) )
$_SESSION['tree_icons'] = build_initial_tree_icons();
// Make sure that the tree index is indeed well formed.
if( ! is_array( $_SESSION['tree'] ) )
$_SESSION['tree'] = build_initial_tree();
if( ! is_array( $_SESSION['tree_icons'] ) )
$_SESSION['tree_icons'] = build_initial_tree_icons();
}
/**
* Gets the operational attributes for an entry. Given a DN, this function fetches that entry's
* operational (ie, system or internal) attributes. These attributes include "createTimeStamp",
* "creatorsName", and any other attribute that the LDAP server sets automatically. The returned
* associative array is of this form:
* <code>
* Array
* (
* [creatorsName] => Array
* (
* [0] => "cn=Admin,dc=example,dc=com"
* )
* [createTimeStamp]=> Array
* (
* [0] => "10401040130"
* )
* [hasSubordinates] => Array
* (
* [0] => "FALSE"
* )
* )
* </code>
*
* @param object $ldapserver The LDAP Server Object of interest
* @param string $dn The DN of the entry whose interal attributes are desired.
* @param int $deref For aliases and referrals, this parameter specifies whether to
* follow references to the referenced DN or to fetch the attributes for
* the referencing DN. See http://php.net/ldap_search for the 4 valid
* options.
* @return array An associative array whose keys are attribute names and whose values
* are arrays of values for the aforementioned attribute.
* @todo Move this to an LDAPServer object method.
*/
function get_entry_system_attrs( $ldapserver, $dn, $deref=LDAP_DEREF_NEVER ) {
debug_log(sprintf('get_entry_system_attrs(): Entered with (%s,%s,%s)',$ldapserver->server_id,$dn,$deref),2);
$attrs = array( 'creatorsname', 'createtimestamp', 'modifiersname',
'structuralObjectClass', 'entryUUID', 'modifytimestamp',
'subschemaSubentry', 'hasSubordinates', '+' );
$search = @ldap_read( $ldapserver->connect(), $dn, '(objectClass=*)', $attrs, 0, 0, 0, $deref );
if( ! $search )
return false;
$entry = ldap_first_entry( $ldapserver->connect(), $search );
if( ! $entry)
return false;
$attrs = ldap_get_attributes( $ldapserver->connect(), $entry );
if( ! $attrs )
return false;
if( ! isset( $attrs['count'] ) )
return false;
$count = $attrs['count'];
unset( $attrs['count'] );
$return_attrs = array();
for( $i=0; $i<$count; $i++ ) {
$attr_name = $attrs[$i];
unset( $attrs[$attr_name]['count'] );
$return_attrs[$attr_name] = $attrs[$attr_name];
}
return $return_attrs;
}
/**
* Gets the attributes/values of an entry. Returns an associative array whose
* keys are attribute value names and whose values are arrays of values for
* said attribute. Optionally, callers may specify true for the parameter
* $lower_case_attr_names to force all keys in the associate array (attribute
* names) to be lower case.
*
* Sample return value of <code>get_object_attrs( 0, "cn=Bob,ou=pepole,dc=example,dc=com" )</code>
*
* <code>
* Array
* (
* [objectClass] => Array
* (
* [0] => person
* [1] => top
* )
* [cn] => Array
* (
* [0] => Bob
* )
* [sn] => Array
* (
* [0] => Jones
* )
* [dn] => Array
* (
* [0] => cn=Bob,ou=pepole,dc=example,dc=com
* )
* )
* </code>
*
* @param object $ldapserver The LDAP Server Object of interest
* @param string $dn The distinguished name (DN) of the entry whose attributes/values to fetch.
* @param bool $lower_case_attr_names (optional) If true, all keys of the returned associative
* array will be lower case. Otherwise, they will be cased as the LDAP server returns
* them.
* @param int $deref For aliases and referrals, this parameter specifies whether to
* follow references to the referenced DN or to fetch the attributes for
* the referencing DN. See http://php.net/ldap_search for the 4 valid
* options.
* @return array
* @see get_entry_system_attrs
* @see get_object_attr
* @todo Move this to an LDAPServer object method.
*/
function get_object_attrs( $ldapserver, $dn, $lower_case_attr_names=false, $deref=LDAP_DEREF_NEVER ) {
debug_log(sprintf('get_object_attrs(): Entered with (%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$lower_case_attr_names,$deref),2);
$search = @ldap_read( $ldapserver->connect(), $dn, '(objectClass=*)', array( ), 0, 0, 0, $deref );
if( ! $search )
return false;
$entry = ldap_first_entry( $ldapserver->connect(), $search );
if( ! $entry )
return false;
$attrs = ldap_get_attributes( $ldapserver->connect(), $entry );
if( ! $attrs || $attrs['count'] == 0 )
return false;
$num_attrs = $attrs['count'];
unset( $attrs['count'] );
// strip numerical inices
for( $i=0; $i<$num_attrs; $i++ )
unset( $attrs[$i] );
$return_array = array();
foreach( $attrs as $attr => $vals ) {
if( $lower_case_attr_names )
$attr = strtolower( $attr );
if( is_attr_binary( $ldapserver, $attr ) )
$vals = ldap_get_values_len( $ldapserver->connect(), $entry, $attr );
unset( $vals['count'] );
$return_array[ $attr ] = $vals;
}
ksort( $return_array );
return $return_array;
}
/**
* Returns true if the passed string $temp contains all printable
* ASCII characters. Otherwise (like if it contains binary data),
* returns false.
*/
function is_printable_str($temp) {
debug_log(sprintf('is_printable_str(): Entered with (%s)',$temp),2);
$len = strlen($temp);
for ($i=0; $i<$len; $i++) {
$ascii_val = ord( substr( $temp,$i,1 ) );
if( $ascii_val < 32 || $ascii_val > 126 )
return false;
}
return true;
}
/**
* Much like get_object_attrs(), but only returns the values for
* one attribute of an object. Example calls:
*
* <code>
* print_r( get_object_attr( 0, "cn=Bob,ou=people,dc=example,dc=com", "sn" ) );
* // prints:
* // Array
* // (
* // [0] => "Smith"
* // )
*
* print_r( get_object_attr( 0, "cn=Bob,ou=people,dc=example,dc=com", "objectClass" ) );
* // prints:
* // Array
* // (
* // [0] => "top"
* // [1] => "person"
* // )
* </code>
*
* @param int $server_id The ID of the server of interest
* @param string $dn The distinguished name (DN) of the entry whose attributes/values to fetch.
* @param string $attr The attribute whose value(s) to return (ie, "objectClass", "cn", "userPassword")
* @param bool $lower_case_attr_names (optional) If true, all keys of the returned associative
* array will be lower case. Otherwise, they will be cased as the LDAP server returns
* them.
* @param int $deref For aliases and referrals, this parameter specifies whether to
* follow references to the referenced DN or to fetch the attributes for
* the referencing DN. See http://php.net/ldap_search for the 4 valid
* options.
* @see get_object_attrs
* @todo Move this to an LDAPServer object method.
*/
function get_object_attr( $ldapserver, $dn, $attr, $lower_case_attr_names=false, $deref=LDAP_DEREF_NEVER ) {
debug_log(sprintf('get_object_attr(): Entered with (%s,%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$attr,$lower_case_attr_names,$deref),2);
if ($lower_case_attr_names)
$attr = strtolower( $attr );
$attrs = get_object_attrs( $ldapserver, $dn, $lower_case_attr_names, $deref );
if( isset( $attrs[$attr] ) )
return $attrs[$attr];
else
return false;
//echo "get_object_attr( $server_id, $dn, $attr )<br />";
/*
$search = @ldap_read( $ldapesrver->connect(), $dn, '(objectClass=*)', array( $attr ), 0, 0, 0, $deref );
if( ! $search )
return false;
$entry = ldap_first_entry( $ldapesrver->connect(), $search );
if( ! $entry )
return false;
$attrs = ldap_get_attributes( $ldapesrver->connect(), $entry );
if( ! $attrs || $attrs['count'] == 0 )
return false;
if( is_attr_binary( $ldapserver, $attr ) )
$vals = ldap_get_values_len( $ldapesrver->connect(), $entry, $attr );
else
$vals = ldap_get_values( $ldapesrver->connect(), $entry, $attr );
unset( $vals['count'] );
return $vals;
*/
}
/**
* A handy ldap searching function very similar to PHP's ldap_search() with the
* following exceptions: Callers may specify a search scope and the return value
* is an array containing the search results rather than an LDAP result resource.
*
* Example usage:
* <code>
* $samba_users = ldap_search( 0, "(&(objectClass=sambaAccount)(objectClass=posixAccount))",
* "ou=People,dc=example,dc=com", array( "uid", "homeDirectory" ) );
* print_r( $samba_users );
* // prints (for example):
* // Array
* // (
* // [uid=jsmith,ou=People,dc=example,dc=com] => Array
* // (
* // [dn] => "uid=jsmith,ou=People,dc=example,dc=com"
* // [uid] => "jsmith"
* // [homeDirectory] => "\\server\jsmith"
* // )
* // [uid=byoung,ou=People,dc=example,dc=com] => Array
* // (
* // [dn] => "uid=byoung,ou=Samba,ou=People,dc=example,dc=com"
* // [uid] => "byoung"
* // [homeDirectory] => "\\server\byoung"
* // )
* // )
* </code>
*
* WARNING: This function will use a lot of memory on large searches since the entire result set is
* stored in a single array. For large searches, you should consider sing the less memory intensive
* PHP LDAP API directly (ldap_search(), ldap_next_entry(), ldap_next_attribute(), etc).
*
* @param int $server_id The ID of the server to search on.
* @param string $filter The LDAP filter to use when searching (example: "(objectClass=*)") (see RFC 2254)
* @param string $base_dn The DN of the base of search.
* @param array $attrs An array of attributes to include in the search result (example: array( "objectClass", "uid", "sn" )).
* @param string $scope The LDAP search scope. Must be one of "base", "one", or "sub". Standard LDAP search scope.
* @param bool $sort_results Specify false to not sort results by DN or true to have the
* returned array sorted by DN (uses ksort)
* @param int $deref When handling aliases or referrals, this specifies whether to follow referrals. Must be one of
* LDAP_DEREF_ALWAYS, LDAP_DEREF_NEVER, LDAP_DEREF_SEARCHING, or LDAP_DEREF_FINDING. See the PHP LDAP API for details.
* @todo Move this to an LDAPServer object method.
*/
function pla_ldap_search( $ldapserver, $filter, $base_dn=null, $attrs=array(), $scope='sub', $sort_results=true, $deref=LDAP_DEREF_ALWAYS ) {
debug_log(sprintf('pla_ldap_search(): Entered with (%s,%s,%s,%s,%s,%s,%s)',
$ldapserver->server_id,$filter,$base_dn,count($attrs),$scope,$sort_results,$deref),2);
if( is_null($base_dn))
$base_dn = $ldapserver->getBaseDN();
switch( $scope ) {
case 'base':
$search = @ldap_read( $ldapserver->connect(false), $base_dn, $filter, $attrs, 0, 0, 0, $deref );
break;
case 'one':
$search = @ldap_list( $ldapserver->connect(false), $base_dn, $filter, $attrs, 0, 0, 0, $defef );
break;
case 'sub':
default:
$search = @ldap_search( $ldapserver->connect(false), $base_dn, $filter, $attrs, 0, 0, 0, $deref );
break;
}
if( ! $search )
return array();
$return = array();
//get the first entry identifier
if( $entry_id = ldap_first_entry($ldapserver->connect(false),$search) )
//iterate over the entries
while($entry_id) {
//get the distinguished name of the entry
$dn = ldap_get_dn($ldapserver->connect(false),$entry_id);
//get the attributes of the entry
$attrs = ldap_get_attributes($ldapserver->connect(false),$entry_id);
$return[$dn]['dn'] = $dn;
//get the first attribute of the entry
if($attr = ldap_first_attribute($ldapserver->connect(false),$entry_id,$attrs))
//iterate over the attributes
while($attr) {
if( is_attr_binary($ldapserver,$attr))
$values = ldap_get_values_len($ldapserver->connect(false),$entry_id,$attr);
else
$values = ldap_get_values($ldapserver->connect(false),$entry_id,$attr);
//get the number of values for this attribute
$count = $values['count'];
unset($values['count']);
if($count==1)
$return[$dn][$attr] = $values[0];
else
$return[$dn][$attr] = $values;
$attr = ldap_next_attribute($ldapserver->connect(false),$entry_id,$attrs);
}// end while attr
$entry_id = ldap_next_entry($ldapserver->connect(false),$entry_id);
} // end while entry_id
if( $sort_results && is_array( $return ) )
ksort( $return );
return $return;
}
/**
* Reads the query, checks all values and sets defaults.
*
* @param int $query_id The ID of the predefined query.
* @return array The fixed query or null on error
* @todo Fix base_dn processing and use getBaseDN()
* @todo expand_dn_with_base no longer knows what the base_dn is, so you need to pass it the base, need to fix this function.
*/
function get_cleaned_up_predefined_search( $query_id ) {
debug_log(sprintf('get_cleaned_up_predefined_search(): Entered with (%s)',$query_id),2);
global $ldapservers,$queries;
if( ! isset( $queries[$query_id] ) )
return null;
$query = $queries[$query_id];
if( isset( $query['server'] ) && ( is_numeric( $query['server'] ) ) )
$server_id = $query['server'];
else $server_id = 0;
$ldapserver = $ldapservers->Instance($server_id);
$base = ( isset( $query['base'] ) ) ? $query['base'] : null;
$base = expand_dn_with_base( $ldapserver, $base );
if( isset( $query['filter'] ) && strlen( trim( $query['filter'] ) ) > 0 )
$filter = $query['filter'];
else
$filter = 'objectclass=*';
$scope = isset( $query['scope'] )
&& ( in_array( $query['scope'], array( 'base', 'sub', 'one' ) ) )
? $query['scope'] : 'sub';
if( isset( $query['attributes'] ) && strlen( trim( $query['filter'] ) ) > 0 )
$attrib = $query['attributes'];
else
$attrib = "dn, cn, sn, objectClass";
return array (
'server' => $server_id, 'base' => $base,
'filter' => $filter, 'scope' => $scope, 'attributes' => $attrib );
}
/**
* Checks the specified server id for sanity. Ensures that the server is indeed in the configured
* list and active. This is used by many many scripts to ensure that valid server ID values
* are passed in POST and GET.
* @deprecated
*/
function check_server_id( $server_id ) {
global $ldapservers;
$ldapserver = $ldapservers->Instance($server_id);
if(! isset( $ldapserver->host ) || $ldapserver->host == '' )
return false;
else
return true;
}
/**
* Used to generate a random salt for crypt-style passwords. Salt strings are used
* to make pre-built hash cracking dictionaries difficult to use as the hash algorithm uses
* not only the user's password but also a randomly generated string. The string is
* stored as the first N characters of the hash for reference of hashing algorithms later.
*
* --- added 20021125 by bayu irawan <bayuir@divnet.telkom.co.id> ---
* --- ammended 20030625 by S C Rigler <srigler@houston.rr.com> ---
*
* @param int $length The length of the salt string to generate.
* @return string The generated salt string.
*/
function random_salt( $length ) {
debug_log(sprintf('random_salt(): Entered with (%s)',$length),2);
$possible = '0123456789'.
'abcdefghijklmnopqrstuvwxyz'.
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
'./';
$str = "";
mt_srand((double)microtime() * 1000000);
while( strlen( $str ) < $length )
$str .= substr( $possible, ( rand() % strlen( $possible ) ), 1 );
/**
* Commented out following line because of problem
* with crypt function in update.php
* --- 20030625 by S C Rigler <srigler@houston.rr.com> ---
*/
//$str = "\$1\$".$str."\$";
return $str;
}
/**
* Given a DN string, this returns the 'RDN' portion of the string.
* For example. given 'cn=Manager,dc=example,dc=com', this function returns
* 'cn=Manager' (it is really the exact opposite of get_container()).
*
* @param string $dn The DN whose RDN to return.
* @param bool $include_attrs If true, include attributes in the RDN string.
* See http://php.net/ldap_explode_dn for details
*
* @return string The RDN
* @see get_container
*/
function get_rdn( $dn, $include_attrs=0 ) {
debug_log(sprintf('get_rdn(): Entered with (%s,%s)',$dn,$include_attrs),2);
if( $dn == null )
return null;
$rdn = pla_explode_dn( $dn, $include_attrs );
if( 0 == count($rdn) )
return $dn;
if( ! isset( $rdn[0] ) )
return $dn;
$rdn = $rdn[0];
return $rdn;
}
/**
* Given a DN string, this returns the parent container portion of the string.
* For example. given 'cn=Manager,dc=example,dc=com', this function returns
* 'dc=example,dc=com'.
*
* @param string $dn The DN whose container string to return.
*
* @return string The container
* @see get_rdn
*/
function get_container( $dn ) {
debug_log(sprintf('get_container(): Entered with (%s)',$dn),2);
$parts = pla_explode_dn( $dn );
if( count( $parts ) <= 1 )
return null;
$container = $parts[1];
for( $i=2; $i<count($parts); $i++ )
$container .= ',' . $parts[$i];
return $container;
}
/**
* Given a DN string, this returns the top container portion of the string.
* @param string $dn The DN whose container string to return.
* @return string The container
* @see get_rdn
* @see get_container
* @todo: need to fix this, it should just produce the base_dn for the DN entered, not the top .
*/
function get_container_top ( $dn ) {
debug_log(sprintf('get_container_top(): Entered with (%s)',$dn),2);
$parts = pla_explode_dn( $dn );
if( count( $parts ) <= 1 )
return $dn;
$container = $parts[count($parts)-1];
return $container;
}
/**
* Given a DN string and a path like syntax, this returns the parent container portion of the string.
* @param string $dn The DN whose container string to return.
* @param string $path Either '/', '.' or a series of '../'
* @return string The container
* @see get_rdn
* @see get_container
*/
function get_container_parent ( $container, $path ) {
debug_log(sprintf('get_container_parent(): Entered with (%s,%s)',$container,$path),2);
if ($path == '/') {
return get_container_top($container);
} elseif ($path == '.') {
return $container;
} else {
$parenttree = explode('/',$path);
foreach ($parenttree as $index => $value) {
if ($value == '..') {
if (get_container($container))
$container = get_container($container);
} else {
break;
}
}
return $container;
}
}
/**
* Given an LDAP error number, returns a verbose description of the error.
* This function parses ldap_error_codes.txt and looks up the specified
* ldap error number, and returns the verbose message defined in that file.
*
* @param string $err_no The hex error number (ie, "0x42") of the LDAP error of interest.
* @return array An associative array contianing the error title and description like so:
* <code>
* Array
* (
* [title] => "Invalid Credentials"
* [description] => "An invalid username and/or password was supplied to the LDAP server."
* )
* </code>
*/
function pla_verbose_error( $err_no ) {
debug_log(sprintf('pla_verbose_error(): Entered with (%s)',$err_no),2);
static $err_codes;
if( count($err_codes) > 0 ) {
if( isset( $err_codes[ $err_no ] ) )
return $err_codes[ $err_no ];
else
return array( 'title' => null, 'desc' => null );
}
$err_codes_file = LIBDIR.'ldap_error_codes.txt';
if( ! file_exists($err_codes_file))
return false;
if( ! is_readable($err_codes_file))
return false;
if( ! ($f = fopen($err_codes_file,'r')))
return false;
$contents = fread( $f, filesize( $err_codes_file ) );
fclose( $f );
$entries = array();
preg_match_all( "/0x[A-Fa-f0-9][A-Za-z0-9]\s+[0-9A-Za-z_]+\s+\"[^\"]*\"\n/", $contents, $entries );
$err_codes = array();
foreach( $entries[0] as $e ) {
$entry = array();
preg_match( "/(0x[A-Za-z0-9][A-Za-z0-9])\s+([0-9A-Za-z_]+)\s+\"([^\"]*)\"/", $e, $entry );
$hex_code = isset( $entry[1] ) ? $entry[1] : null;
$title = isset( $entry[2] ) ? $entry[2] : null;
$desc = isset( $entry[3] ) ? $entry[3] : null;
$desc = preg_replace( "/\s+/", " ", $desc );
$err_codes[ "$hex_code" ] = array( 'title' => $title, 'desc' => $desc );
}
// Sanity check
if( isset( $err_codes[ $err_no ] ) )
return $err_codes[ $err_no ];
else
return array( 'title' => null, 'desc' => null );
}
// @todo: describe this function
function support_oid_to_text($oid_id) {
debug_log(sprintf('support_oid_to_text(): Entered with (%s)',$oid_id),2);
static $oid;
if( count($oid) > 0 ) {
if( isset( $oid[ $oid_id ] ) )
return $oid[ $oid_id ];
else
return null;
}
$oid_codes_file = LIBDIR.'ldap_supported_oids.txt';
if( ! file_exists($oid_codes_file))
return false;
if( ! is_readable($oid_codes_file))
return false;
if( ! ($f = fopen($oid_codes_file,'r')))
return false;
$contents = fread( $f, filesize( $oid_codes_file ) );
fclose( $f );
$entries = array();
preg_match_all( "/[0-9]\..+\s+\"[^\"]*\"\n/", $contents, $entries );
$err_codes = array();
foreach( $entries[0] as $e ) {
$entry = array();
preg_match( "/([0-9]\.([0-9]+\.)*[0-9]+)(\s+\"([^\"]*)\")?(\s+\"([^\"]*)\")?(\s+\"([^\"]*)\")?/", $e, $entry );
$oid_id_a = isset( $entry[1] ) ? $entry[1] : null;
if ($oid_id_a) {
$oid[$oid_id_a]['title'] = isset( $entry[4] ) ? $entry[4] : null;
$oid[$oid_id_a]['ref'] = isset( $entry[6] ) ? $entry[6] : null;
$desc = isset( $entry[8] ) ? $entry[8] : null;
$oid[$oid_id_a]['desc'] = preg_replace( "/\s+/", " ", $desc );
}
}
// Sanity check
if( isset( $oid[ $oid_id ] ) )
return $oid[ $oid_id ];
else
return null;
}
/**
* Prints an HTML-formatted error string. If you specify the optional
* parameters $ldap_err_msg and $ldap_err_no, this function will
* lookup the error number and display a verbose message in addition
* to the message you pass it.
*
* @param string $msg The error message to display.
* @param string $ldap_err_msg (optional) The error message supplied by the LDAP server
* @param string $ldap_err_no (optional) The hexadecimal error number string supplied by the LDAP server
* @param bool $fatal (optional) If true, phpLDAPadmin will terminate execution with the PHP die() function.
*
* @see die
* @see ldap_errno
* @see pla_verbose_error
*/
function pla_error( $msg, $ldap_err_msg=null, $ldap_err_no=-1, $fatal=true ) {
debug_log(sprintf('pla_error(): Entered with (%s,%s,%s,%s)',$msg,$ldap_err_msg,$ldap_err_no,$fatal),2);
@include_once './header.php';
global $lang, $config;
?>
<center>
<table class="error"><tr><td class="img"><img src="images/warning.png" /></td>
<td><center><h2><?php echo $lang['ferror_error'];?></h2></center>
<?php echo $msg; ?>
<br />
<br />
<?php
syslog_err ( $msg );
if( $ldap_err_msg ) {
echo sprintf($lang['ldap_said'], htmlspecialchars( $ldap_err_msg ));
echo '<br />';
}
if( $ldap_err_no != -1 ) {
$ldap_err_no = ( '0x' . str_pad( dechex( $ldap_err_no ), 2, 0, STR_PAD_LEFT ) );
$verbose_error = pla_verbose_error( $ldap_err_no );
if( $verbose_error ) {
echo sprintf( $lang['ferror_number'], $ldap_err_no, $verbose_error['title']);
echo '<br />';
echo sprintf( $lang['ferror_discription'], $verbose_error['desc']);
} else {
echo sprintf($lang['ferror_number_short'], $ldap_err_no);
echo '<br />';
echo $lang['ferror_discription_short'];
}
syslog_err ( sprintf($lang['ferror_number_short'], $ldap_err_no) );
}
?>
<br />
<!-- Commented out due to too many false bug reports. :)
<br />
<center>
<small>
<?php echo sprintf($lang['ferror_submit_bug'] , get_href( 'add_bug' ));?>
<?php
if( function_exists( "debug_print_backtrace" ) )
debug_print_backtrace();
?>
</small>
</center>
-->
</td></tr></table>
</center>
<?php
if( $fatal ) {
echo "</body>\n</html>";
die();
}
}
/**
* phpLDAPadmin's custom error handling function. When a PHP error occurs,
* PHP will call this function rather than printing the typical PHP error string.
* This provides phpLDAPadmin the ability to format an error message more "pretty"
* and provide a link for users to submit a bug report. This function is not to
* be called by users. It is exclusively for the use of PHP internally. If this
* function is called by PHP from within a context where error handling has been
* disabled (ie, from within a function called with "@" prepended), then this
* function does nothing.
*
* @param int $errno The PHP error number that occurred (ie, E_ERROR, E_WARNING, E_PARSE, etc).
* @param string $errstr The PHP error string provided (ie, "Warning index "foo" is undefined)
* @param string $file The file in which the PHP error ocurred.
* @param int $lineno The line number on which the PHP error ocurred
*
* @see set_error_handler
*/
function pla_error_handler( $errno, $errstr, $file, $lineno ) {
debug_log(sprintf('pla_error_handler(): Entered with (%s,%s,%s,%s)',$errno,$errstr,$file,$lineno),2);
global $lang;
// error_reporting will be 0 if the error context occurred
// within a function call with '@' preprended (ie, @ldap_bind() );
// So, don't report errors if the caller has specifically
// disabled them with '@'
if( 0 == ini_get( 'error_reporting' ) || 0 == error_reporting() )
return;
$file = basename( $file );
$caller = basename( $_SERVER['PHP_SELF'] );
$errtype = "";
switch( $errno ) {
case E_STRICT: $errtype = "E_STRICT"; break;
case E_ERROR: $errtype = "E_ERROR"; break;
case E_WARNING: $errtype = "E_WARNING"; break;
case E_PARSE: $errtype = "E_PARSE"; break;
case E_NOTICE: $errtype = "E_NOTICE"; break;
case E_CORE_ERROR: $errtype = "E_CORE_ERROR"; break;
case E_CORE_WARNING: $errtype = "E_CORE_WARNING"; break;
case E_COMPILE_ERROR: $errtype = "E_COMPILE_ERROR"; break;
case E_COMPILE_WARNING: $errtype = "E_COMPILE_WARNING"; break;
case E_USER_ERROR: $errtype = "E_USER_ERROR"; break;
case E_USER_WARNING: $errtype = "E_USER_WARNING"; break;
case E_USER_NOTICE: $errtype = "E_USER_NOTICE"; break;
case E_ALL: $errtype = "E_ALL"; break;
default: $errtype = $lang['ferror_unrecognized_num'] . $errno;
}
$errstr = preg_replace("/\s+/"," ",$errstr);
if( $errno == E_NOTICE ) {
echo sprintf($lang['ferror_nonfatil_bug'], $errstr, $errtype, $file,
$lineno, $caller, pla_version(), phpversion(), php_sapi_name(),
$_SERVER['SERVER_SOFTWARE'], get_href('search_bug',"&summary_keyword=".htmlspecialchars($errstr)),get_href('add_bug'));
return;
}
$server = isset( $_SERVER['SERVER_SOFTWARE'] ) ? $_SERVER['SERVER_SOFTWARE'] : 'undefined';
$phpself = isset( $_SERVER['PHP_SELF'] ) ? basename( $_SERVER['PHP_SELF'] ) : 'undefined';
pla_error( sprintf($lang['ferror_congrats_found_bug'], $errstr, $errtype, $file,
$lineno, $phpself, pla_version(),
phpversion(), php_sapi_name(), $server ));
}
/**
* Reads the friendly_attrs array as defined in config.php and lower-cases all
* the keys. Will return an empty array if the friendly_attrs array is not defined
* in config.php. This is simply used so we can more easily lookup user-friendly
* attributes configured by the admin.
*/
function process_friendly_attr_table() {
debug_log(sprintf('process_friendly_attr_table(): Entered with ()'),2);
// require 'config.php';
global $friendly_attrs;
$attrs_table = array();
if( isset( $friendly_attrs ) && is_array( $friendly_attrs ) )
foreach( $friendly_attrs as $old_name => $new_name )
$attrs_table[ strtolower( $old_name ) ] = $new_name;
else
return array();
return $attrs_table;
}
/**
* Show friendly attribute.
*/
function show_friendly_attribute($attr) {
debug_log(sprintf('show_friendly_attribute(): Entered with (%s)',$attr),2);
$friendly_attrs = process_friendly_attr_table();
if (isset($friendly_attrs[strtolower($attr)]))
$return = $friendly_attrs[strtolower($attr)];
else
$return = $attr;
debug_log(sprintf('show_friendly_attribute(): Returning (%s)',$return),1);
return $return;
}
/**
* Gets whether an entry exists based on its DN. If the entry exists,
* returns true. Otherwise returns false.
*
* @param object $ldapserver The LDAP Server Object of interest
* @param string $dn The DN\of the entry of interest.
*
* @return bool
* @todo Move this to an LDAPServer object method.
*/
function dn_exists($ldapserver,$dn) {
debug_log(sprintf('dn_exists(): Entered with (%s,%s)',$ldapserver->server_id,$dn),2);
$search_result = @ldap_read($ldapserver->connect(false),$dn,'objectClass=*',array('dn'));
# Set default return
$return = false;
if ($search_result) {
$num_entries = ldap_count_entries($ldapserver->connect(false),$search_result);
if ($num_entries > 0)
$return = true;
else
$return = false;
}
debug_log(sprintf('dn_exists(): Returning (%s)',$return),1);
return $return;
}
/**
* Draw the jpegPhoto image(s) for an entry wrapped in HTML. Many options are available to
* specify how the images are to be displayed.
*
* Usage Examples:
* <code>
* draw_jpeg_photos( 0, "cn=Bob,ou=People,dc=example,dc=com", "jpegPhoto" true, false, "border: 1px; width: 150px" );
* draw_jpeg_photos( 1, "cn=Fred,ou=People,dc=example,dc=com" );
* </code>
*
* @param int $server_id The ID of the server of interest.
* @param string $dn The DN of the entry that contains the jpeg attribute you want to draw.
* @param string $attr_name The name of the attribute containing the jpeg data (usually 'jpegPhoto').
* @param bool $draw_delete_buttons If true, draws a button beneath the image titled 'Delete' allowing the user
* to delete the jpeg attribute by calling JavaScript function deleteAttribute() provided
* in the default modification template.
* @param bool $draw_bytes_and_size If true, draw text below the image indicating the byte size and dimensions.
* @param string $table_html_attrs Specifies optional CSS style attributes for the table tag.
*
* @return void
*/
function draw_jpeg_photos( $ldapserver, $dn, $attr_name='jpegPhoto', $draw_delete_buttons=false,
$draw_bytes_and_size=true, $table_html_attrs='align="left"', $img_html_attrs='' ) {
debug_log(sprintf('draw_jpeg_photos(): Entered with (%s,%s,%s,%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$attr_name,$draw_delete_buttons,$draw_bytes_and_size,
$table_html_attrs,$img_html_attrs),2);
global $config, $lang;
$fixed_width = false;
$fixed_height = false;
if (eregi(" width",$img_html_attrs) || eregi("^width",$img_html_attrs))
$fixed_width = true;
if (eregi(" height=",$img_html_attrs) || eregi("^height=",$img_html_attrs))
$fixed_height = true;
$search_result = ldap_read( $ldapserver->connect(), $dn, 'objectClass=*', array( $attr_name ) );
$entry = ldap_first_entry( $ldapserver->connect(), $search_result );
if (isset($table_html_attrs) && $table_html_attrs != "" )
echo "<table $table_html_attrs><td><center>\n\n";
// for each jpegPhoto in the entry, draw it (there may be only one, and that's okay)
$jpeg_data = @ldap_get_values_len( $ldapserver->connect(), $entry, $attr_name );
if( ! is_array( $jpeg_data ) ) {
printf( $lang['jpeg_unable_toget'], htmlspecialchars( $attr_name ));
return;
}
for( $i=0; $i<$jpeg_data['count']; $i++ ) {
// ensures that the photo is written to the specified jpeg['tmpdir']
$jpeg_temp_dir = realpath($config->GetValue('jpeg','tmpdir').'/');
if( ! is_writable( $jpeg_temp_dir ) )
pla_error( $lang['jpeg_dir_not_writable'] );
$jpeg_filename = tempnam($jpeg_temp_dir.'/', 'pla');
$outjpeg = @fopen($jpeg_filename, "wb");
if( ! $outjpeg )
pla_error( sprintf( $lang['jpeg_dir_not_writable_error'],$jpeg_temp_dir ));
fwrite($outjpeg, $jpeg_data[$i]);
fclose ($outjpeg);
$jpeg_data_size = filesize( $jpeg_filename );
if( $jpeg_data_size < 6 && $draw_delete_buttons ) {
echo $lang['jpeg_contains_errors'];
echo '<a href="javascript:deleteAttribute( \'' . $attr_name . '\' );" style="color:red; font-size: 75%">'. $lang['delete_photo'] .'</a>';
continue;
}
if( function_exists( 'getimagesize' ) ) {
$jpeg_dimensions = @getimagesize( $jpeg_filename );
$width = $jpeg_dimensions[0];
$height = $jpeg_dimensions[1];
} else {
$width = 0;
$height = 0;
}
if( $width > 300 ) {
$scale_factor = 300 / $width;
$img_width = 300;
$img_height = $height * $scale_factor;
} else {
$img_width = $width;
$img_height = $height;
}
print "<img ".
($fixed_width ? '' : "width=\"$img_width\" ").
($fixed_height ? '' : "height=\"$img_height\" ").
" $img_html_attrs src=\"view_jpeg_photo.php?file=" . basename($jpeg_filename) . "\" /><br />\n";
if( $draw_bytes_and_size ) {
echo "<small>" . number_format($jpeg_data_size) . " bytes. ";
echo "$width x $height pixels.<br /></small>\n\n";
}
if( $draw_delete_buttons ) { ?>
<!-- JavaScript function deleteJpegPhoto() to be defined later by calling script -->
<a href="javascript:deleteAttribute( '<?php echo $attr_name; ?>' );" style="color:red; font-size: 75%"><?php echo $lang['jpeg_delete'] ?></a>
<?php }
}
if (isset($table_html_attrs) && $table_html_attrs != "" )
echo "</center></td></table>\n\n";
// delete old jpeg files.
$jpegtmp_wildcard = "/^pla/";
$handle = opendir($jpeg_temp_dir);
while( ($file = readdir($handle) ) != false ) {
if( preg_match( $jpegtmp_wildcard, $file ) ) {
$file = "$jpeg_temp_dir/$file";
if ((time() - filemtime($file)) > $config->GetValue('jpeg','tmp_keep_time'))
@unlink( $file );
}
}
closedir($handle);
}
/**
* Hashes a password and returns the hash based on the specified enc_type.
*
* @param string $password_clear The password to hash in clear text.
* @param string $enc_type Standard LDAP encryption type which must be one of
* crypt, ext_des, md5crypt, blowfish, md5, sha, smd5, ssha, or clear.
* @return string The hashed password.
*/
function password_hash( $password_clear, $enc_type ) {
debug_log(sprintf('password_hash(): Entered with (%s,%s)',$password_clear,$enc_type),2);
global $lang;
$enc_type = strtolower( $enc_type );
switch( $enc_type ) {
case 'crypt':
$new_value = '{CRYPT}' . crypt( $password_clear, random_salt(2) );
break;
case 'ext_des':
// extended des crypt. see OpenBSD crypt man page.
if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 )
pla_error( $lang['install_not_support_ext_des'] );
$new_value = '{CRYPT}' . crypt( $password_clear, '_' . random_salt(8) );
break;
case 'md5crypt':
if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 )
pla_error( $lang['install_not_support_md5crypt'] );
$new_value = '{CRYPT}' . crypt( $password_clear , '$1$' . random_salt(9) );
break;
case 'blowfish':
if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 )
pla_error( $lang['install_not_support_blowfish'] );
// hardcoded to second blowfish version and set number of rounds
$new_value = '{CRYPT}' . crypt( $password_clear , '$2a$12$' . random_salt(13) );
break;
case 'md5':
$new_value = '{MD5}' . base64_encode( pack( 'H*' , md5( $password_clear) ) );
break;
case 'sha':
if( function_exists('sha1') ) {
// use php 4.3.0+ sha1 function, if it is available.
$new_value = '{SHA}' . base64_encode( pack( 'H*' , sha1( $password_clear) ) );
} elseif( function_exists( 'mhash' ) ) {
$new_value = '{SHA}' . base64_encode( mhash( MHASH_SHA1, $password_clear) );
} else {
pla_error( $lang['install_no_mash'] );
}
break;
case 'ssha':
if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
mt_srand( (double) microtime() * 1000000 );
$salt = mhash_keygen_s2k( MHASH_SHA1, $password_clear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
$new_value = "{SSHA}".base64_encode( mhash( MHASH_SHA1, $password_clear.$salt ).$salt );
} else {
pla_error( $lang['install_no_mash'] );
}
break;
case 'smd5':
if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
mt_srand( (double) microtime() * 1000000 );
$salt = mhash_keygen_s2k( MHASH_MD5, $password_clear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
$new_value = "{SMD5}".base64_encode( mhash( MHASH_MD5, $password_clear.$salt ).$salt );
} else {
pla_error( $lang['install_no_mash'] );
}
break;
case 'clear':
default:
$new_value = $password_clear;
}
return $new_value;
}
/**
* Given a clear-text password and a hash, this function determines if the clear-text password
* is the password that was used to generate the hash. This is handy to verify a user's password
* when all that is given is the hash and a "guess".
* @param String $hash The hash.
* @param String $clear The password in clear text to test.
* @return Boolean True if the clear password matches the hash, and false otherwise.
*/
function password_check( $cryptedpassword, $plainpassword ) {
debug_log(sprintf('password_check(): Entered with (%s,%s)',$cryptedpassword,$plainpassword),2);
global $lang;
//echo "password_check( $cryptedpassword, $plainpassword )\n";
if( preg_match( "/{([^}]+)}(.*)/", $cryptedpassword, $cypher ) ) {
$cryptedpassword = $cypher[2];
$_cypher = strtolower($cypher[1]);
} else {
$_cypher = NULL;
}
switch( $_cypher ) {
// SSHA crypted passwords
case 'ssha':
// check php mhash support before using it
if( function_exists( 'mhash' ) ) {
$hash = base64_decode($cryptedpassword);
$salt = substr($hash, -4);
$new_hash = base64_encode( mhash( MHASH_SHA1, $plainpassword.$salt).$salt );
if( strcmp( $cryptedpassword, $new_hash ) == 0 )
return true;
else
return false;
} else {
pla_error( $lang['install_no_mash'] );
}
break;
// Salted MD5
case 'smd5':
// check php mhash support before using it
if( function_exists( 'mhash' ) ) {
$hash = base64_decode($cryptedpassword);
$salt = substr($hash, -4);
$new_hash = base64_encode( mhash( MHASH_MD5, $plainpassword.$salt).$salt );
if( strcmp( $cryptedpassword, $new_hash ) == 0)
return true;
else
return false;
} else {
pla_error( $lang['install_no_mash'] );
}
break;
// SHA crypted passwords
case 'sha':
if( strcasecmp( password_hash($plainpassword,'sha' ), "{SHA}".$cryptedpassword ) == 0 )
return true;
else
return false;
break;
// MD5 crypted passwords
case 'md5':
if( strcasecmp( password_hash( $plainpassword,'md5' ), "{MD5}".$cryptedpassword ) == 0 )
return true;
else
return false;
break;
// Crypt passwords
case 'crypt':
// Check if it's blowfish crypt
if( preg_match("/^\\$2+/",$cryptedpassword ) ) {
// make sure that web server supports blowfish crypt
if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 )
pla_error( $lang['install_not_support_blowfish'] );
list(,$version,$rounds,$salt_hash) = explode('$',$cryptedpassword);
if( crypt( $plainpassword, '$'. $version . '$' . $rounds . '$' .$salt_hash ) == $cryptedpassword )
return true;
else
return false;
}
// Check if it's an crypted md5
elseif( strstr( $cryptedpassword, '$1$' ) ) {
// make sure that web server supports md5 crypt
if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 )
pla_error( $lang['install_not_support_md5crypt'] );
list(,$type,$salt,$hash) = explode('$',$cryptedpassword);
if( crypt( $plainpassword, '$1$' .$salt ) == $cryptedpassword )
return true;
else
return false;
}
// Check if it's extended des crypt
elseif (strstr( $cryptedpassword, '_' ) ) {
// make sure that web server supports ext_des
if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 )
pla_error( $lang['install_not_support_ext_des'] );
if( crypt($plainpassword, $cryptedpassword ) == $cryptedpassword )
return true;
else
return false;
}
// Password is plain crypt
else {
if( crypt($plainpassword, $cryptedpassword ) == $cryptedpassword )
return true;
else
return false;
}
break;
// No crypt is given assume plaintext passwords are used
default:
if( $plainpassword == $cryptedpassword )
return true;
else
return false;
break;
}
}
/**
* Detects password encryption type
*
* Returns crypto string listed in braces. If it is 'crypt' password,
* returns crypto detected in password hash. Function should detect
* md5crypt, blowfish and extended DES crypt. If function fails to detect
* encryption type, it returns NULL.
* @param string hashed password
* @return string
*/
function get_enc_type( $user_password ) {
debug_log(sprintf('get_enc_type(): Entered with (%s)',$user_password),2);
/* Capture the stuff in the { } to determine if this is crypt, md5, etc. */
$enc_type = null;
if( preg_match( "/{([^}]+)}/", $user_password, $enc_type) )
$enc_type = strtolower( $enc_type[1] );
else
return null;
/* handle crypt types */
if( strcasecmp( $enc_type, 'crypt') == 0 ) {
if( preg_match( "/{[^}]+}\\$1\\$+/", $user_password) ) {
$enc_type = "md5crypt";
} elseif ( preg_match( "/{[^}]+}\\$2+/", $user_password) ) {
$enc_type = "blowfish";
} elseif ( preg_match( "/{[^}]+}_+/", $user_password) ) {
$enc_type = "ext_des";
}
/*
* No need to check for standard crypt,
* because enc_type is already equal to 'crypt'.
*/
}
return $enc_type;
}
/**
* Gets the default enc_type configured in config.php for the server indicated by $server_id;
* @param int $server_id The ID of the server of interest.
* @return String The enc_type, like 'sha', 'md5', 'ssha', 'md5crypt', for example.
*/
function get_default_hash($server_id) {
debug_log(sprintf('get_default_hash(): Entered with (%s)',$server_id),2);
global $ldapservers;
return $ldapservers->GetValue($server_id,'appearance','password_hash');
}
/**
* Returns the phpLDAPadmin version currently running. The version
* is read from the file named VERSION.
*
* @return string The current version as read from the VERSION file.
*/
function pla_version() {
debug_log(sprintf('pla_version(): Entered with ()'),2);
$version_file = realpath('./VERSION');
if (! file_exists($version_file))
return 'unknown version';
$f = fopen($version_file,'r');
$version = fread($f, filesize($version_file));
fclose($f);
return trim($version);
}
/**
* Draws an HTML browse button which, when clicked, pops up a DN chooser dialog.
* @param string $form_element The name of the form element to which this chooser
* dialog will publish the user's choice. The form element must be a member
* of a form with the "name" or "id" attribute set in the form tag, and the element
* must also define "name" or "id" for JavaScript to uniquely identify it.
* Example $form_element values may include "creation_form.container" or
* "edit_form.member_uid". See /templates/modification/default.php for example usage.
* @param bool $include_choose_text (optional) If true, the function draws the localized text "choose" to the right of the button.
*/
function draw_chooser_link( $form_element, $include_choose_text=true, $rdn="none" ) {
debug_log(sprintf('draw_chooser_link(): Entered with (%s,%s,%s)',$form_element,$include_choose_text,$rdn),2);
global $lang;
if ($rdn == "none") {
$href = "javascript:dnChooserPopup('$form_element', '');";
} else {
$href = "javascript:dnChooserPopup('$form_element', '$rdn');";
}
$title = $lang['chooser_link_tooltip'];
printf('<nobr><a href="%s" title="%s"><img class="chooser" src="images/find.png" /></a>',$href,$title);
if ($include_choose_text)
printf('<span class="x-small"><a href="%s" title="%s">%s</a></span>',$href,$title,$lang['fbrowse']);
echo "</nobr>";
}
/**
* Explode a DN into an array of its RDN parts. This function is UTF-8 safe
* and replaces the buggy PHP ldap_explode_dn() which does not properly
* handle UTF-8 DNs and also causes segmentation faults with some inputs.
*
* @param string $dn The DN to explode.
* @param int $with_attriutes (optional) Whether to include attribute names (see http://php.net/ldap_explode_dn for details)
*
* @return array An array of RDN parts of this format:
* <code>
* Array
* (
* [0] => uid=ppratt
* [1] => ou=People
* [2] => dc=example
* [3] => dc=com
* )
* </code>
*/
function pla_explode_dn( $dn, $with_attributes=0 ) {
debug_log(sprintf('pla_explode_dn(): Entered with (%s,%s)',$dn,$with_attributes),2);
// replace "\," with the hexadecimal value for safe split
$var = preg_replace("/\\\,/","\\\\\\\\2C",$dn);
// split the dn
$result = explode(",",$var);
//translate hex code into ascii for display
foreach( $result as $key => $value )
$result[$key] = preg_replace("/\\\([0-9A-Fa-f]{2})/e", "''.chr(hexdec('\\1')).''", $value);
return $result;
}
/**
* Fetches the URL for the specified item. This is a convenience function for
* fetching project HREFs (like bugs)
*
* @param string $type One of "open_bugs", "add_bug", "donate", or "add_rfe"
* (rfe = request for enhancement)
* @return string The URL to the requested item.
*/
function get_href( $type, $extra_info='' ) {
debug_log(sprintf('get_href(): Entered with (%s,%s)',$type,$extra_info),2);
$group_id = "61828";
$bug_atid = "498546";
$rfe_atid = "498549";
$forum_id = "34809";
switch( $type ) {
case 'open_bugs': return "https://sourceforge.net/tracker/?group_id=$group_id&atid=$bug_atid";
case 'add_bug': return "https://sourceforge.net/tracker/?func=add&group_id=$group_id&atid=$bug_atid";
case 'add_rfe': return "https://sourceforge.net/tracker/?func=add&group_id=$group_id&atid=$rfe_atid";
case 'forum': return "http://sourceforge.net/mailarchive/forum.php?forum_id=$forum_id";
case 'search_bug': return "https://sourceforge.net/tracker/?func=search&group_id=$group_id&atid=$bug_atid&set=custom&_status=100&_group=100&order=summary$extra_info";
case 'donate': return "donate.php";
case 'help': return "help.php";
default: return null;
}
}
/**
* Returns the current time as a double (including micro-seconds).
*
* @return double The current time in seconds since the beginning of the UNIX epoch (Midnight Jan. 1, 1970)
*/
function utime () {
debug_log(sprintf('utime(): Entered with ()'),2);
$time = explode( " ", microtime());
$usec = (double)$time[0];
$sec = (double)$time[1];
return $sec + $usec;
}
/**
* Converts an array to a query-string with the option to exclude certain variables
* from the returned query string. This is convenient if callers want to convert the
* current GET query string or POST array into a string and replace certain
* variables with their own.
*
* @param array $array The associate array to convert whose form is such that the keys are the
* names of the variables and the values are said variables' values like this:
* <code>
* Array
* (
* [server_id] = 0,
* [dn] = "dc=example,dc=com",
* [attr] = "sn"
* )
* </code>
* This will produce a string like this: "server_id=0&dn=dc=example,dc=com&attr=sn"
* @param array $exclude_vars (optional) An array of variables to exclude in the resulting string
* @param bool $url_encode_ampersands (optional) By default, this function encodes all ampersand-separators
* as & but callers may dislabe this by specifying false here. For example, URLs on HTML
* pages should encode the ampersands but URLs in header( "Location: http://example.com" ) should
* not be encoded.
* @return string The string created from the array.
*/
function array_to_query_string( $array, $exclude_vars=array(), $url_encode_ampersands=true ) {
debug_log(sprintf('array_to_query_string(): Entered with (%s,%s,%s)',
count($array),count($exclude_vars),$url_encode_ampersands),2);
if( ! is_array( $array ) )
return '';
if( ! $array )
return '';
$str = '';
$i=0;
foreach( $array as $name => $val ) {
if( ! in_array( $name, $exclude_vars ) ) {
if( $i>0 )
if( $url_encode_ampersands )
$str .= '&';
else
$str .= '&';
$str .= urlencode( $name ) . '=' . urlencode( $val );
$i++;
}
}
return $str;
}
/**
* Reverses a DN such that the top-level RDN is first and the bottom-level RDN is last
* For example:
* <code>
* cn=Brigham,ou=People,dc=example,dc=com
* </code>
* Becomes:
* <code>
* dc=com,dc=example,ou=People,cn=Brigham
* </code>
* This makes it possible to sort lists of DNs such that they are grouped by container.
*
* @param string $dn The DN to reverse
*
* @return string The reversed DN
*
* @see pla_compare_dns
*/
function pla_reverse_dn($dn) {
debug_log(sprintf('pla_reverse_dn(): Entered with (%s)',$dn),2);
foreach (pla_explode_dn($dn) as $key => $branch) {
// pla_expode_dn returns the array with an extra count attribute, we can ignore that.
if ( $key === "count" ) continue;
if (isset($rev)) {
$rev = $branch.",".$rev;
} else {
$rev = $branch;
}
}
return $rev;
}
/**
* Determins if the specified attribute is contained in the $unique_attrs list
* configured in config.php.
* @return Bool True if the specified attribute is in the $unique_attrs list and false
* otherwise.
*/
function is_unique_attr( $attr_name ) {
debug_log(sprintf('is_unique_attr(): Entered with (%s)',$attr_name),2);
global $unique_attrs;
if( isset( $unique_attrs ) && is_array( $unique_attrs ) ) {
foreach( $unique_attrs as $attr )
if( 0 === strcasecmp( $attr_name, $attr ) )
return true;
}
return false;
}
/**
* This function will check whether the value for an attribute being changed
* is already assigned to another DN.
*
* Inputs:
* @param object $ldapserver The LDAP Server Object of interest
* @param dn $dn DN that is being changed
* @param string $attr_name Attribute being changed
* @param string|array $new values New values for the attribute
*
* Returns the bad value, or null if all values are OK
* @todo Implement alternate conection with LDAPserver object
* @todo Move this to an LDAPServer object method.
*/
function checkUniqueAttr( $ldapserver, $dn, $attr_name, $new_value ) {
debug_log(sprintf('checkUniqueAttr(): Entered with (%s,%s,%s,%s)',
$ldapserver->server_id,$dn,$attr_name,count($new_value)),2);
global $ldapservers,$lang;
// Is this attribute in the unique_attrs list?
if ( is_unique_attr( $attr_name ) ) {
// Search the tree and make sure that attribute doesnt already exist to somebody else.
// Check see and use our alternate uid_dn and password if we have it.
$unique_attrs_dn = $ldapservers->GetValue($ldapserver->server_id,'unique_attrs','dn');
$unique_attrs_pass = $ldapservers->GetValue($ldapserver->server_id,'unique_attrs','pass');
$need_to_unbind = false;
if ( isset( $unique_attrs_dn ) && $unique_attrs_dn != '' && isset( $uniqe_attrs_pass ) )
{
$con = @ldap_connect( $ldapserver->host, $ldapserver->port );
@ldap_set_option( $con, LDAP_OPT_PROTOCOL_VERSION, 3 );
// Bind with the alternate ID.
$res = @ldap_bind( $con, $unuque_attrs_dn, $unique_attrs_pass );
if (! $res) pla_error( sprintf( $lang['unique_attrs_invalid_credential'] , $ldapserver->name ) );
$need_to_unbind = true;
} else {
$con = $ldapserver->connect();
}
// Build our search filter to double check each attribute.
$searchfilter = "(|";
if ( is_array( $new_value ) ) {
foreach ($new_value as $val) {
$searchfilter .= sprintf("($attr_name=%s)",clean_search_vals($val));
}
} elseif ( $new_value ) {
$searchfilter .= sprintf("($attr_name=%s)",clean_search_vals($new_value));
}
$searchfilter .= ")";
// Do we need a sanity check to just in case $new_value was null and hence the search string is bad?
foreach ($ldapserver->getBaseDN() as $base_dn) {
// Do the search
$search = @ldap_search( $con, $base_dn, $searchfilter, array('dn',$attr_name), 0, 0, 0, LDAP_DEREF_ALWAYS);
if (! $search)
continue;
$search = ldap_get_entries( $con, $search );
foreach ($search as $result) {
// Skip the count result and go to the array.
if (! is_array($result)) continue;
// If one of the attributes is owned to somebody else, then we may as well die here.
if ($result['dn'] != $dn) {
// Find which attribute matched.
foreach ($result[strtolower($attr_name)] as $attr) {
foreach ($new_value as $new_value_attr) {
if ($attr == $new_value_attr)
return $attr;
}
}
}
}
}
if ( $need_to_unbind ) {
$res = @ldap_unbind( $con );
}
// If we get here, then it must be OK?
return;
} else {
return;
}
}
/**
*
*/
function sortAttrs($a,$b) {
debug_log(sprintf('sortAttrs(): Entered with (%s,%s)',$a,$b),2);
global $friendly_attrs, $attrs_display_order;
// If $attrs_display_order is not set, make it a blank array.
if (! isset($attrs_display_order))
$attrs_display_order = array();
if ( $a == $b ) return 0;
// Check if $a is in $attrs_display_order, get its key
$a_key = array_search($a, $attrs_display_order);
// If not, check if its friendly name is $attrs_display_order, get its key
// If not, assign one greater than number of elements.
if ( $a_key == '' ) {
if (isset($friendly_attrs[ strtolower( $a ) ])) {
$a_key = array_search( $friendly_attrs[ strtolower( $a ) ], $attrs_display_order);
if ( $a_key == '' ) $a_key = count($attrs_display_order)+1;
}
else {
$a_key = count($attrs_display_order)+1;
}
}
$b_key = array_search($b, $attrs_display_order);
if ( $b_key == '' ) {
if (isset($friendly_attrs[ strtolower( $b ) ])) {
$b_key = array_search( $friendly_attrs[ strtolower( $b ) ], $attrs_display_order);
if ( $b_key == '' ) $b_key = count($attrs_display_order)+1;
}
else {
$b_key = count($attrs_display_order)+1;
}
}
// Case where neither $a, nor $b are in $attrs_display_order, $a_key = $b_key = one greater than num elements.
// So we sort them alphabetically
if ( $a_key == $b_key ) {
$a = strtolower( (isset($friendly_attrs[ strtolower( $a ) ]) ? $friendly_attrs[ strtolower( $a ) ] : $a));
$b = strtolower( (isset($friendly_attrs[ strtolower( $b ) ]) ? $friendly_attrs[ strtolower( $b ) ] : $b));
return strcmp ($a, $b);
}
// Case where at least one attribute or its friendly name is in $attrs_display_order
// return -1 if $a before $b in $attrs_display_order
return ( $a_key < $b_key ) ? -1 : 1;
}
/**
* @todo Move this to an LDAPServer object method.
*/
function userIsMember($ldapserver,$user,$group) {
debug_log(sprintf('userIsMember(): Entered with (%s,%s,%s)',$ldapserver->server_id,$user,$group),2);
$group = get_object_attrs( $ldapserver, $group, false, $deref=LDAP_DEREF_NEVER );
if( is_array($group) ) {
// If you are using groupOfNames objectClass
if ( array_key_exists('member',$group) and in_array(strtolower($user),arrayLower($group['member'])) )
return true;
// If you are using groupOfUniqueNames objectClass
if ( array_key_exists('uniqueMember',$group) and in_array(strtolower($user),arrayLower($group['uniqueMember'])) )
return true;
return false;
}
}
/**
* @todo Move this to an LDAPServer object method.
*/
function userIsAllowedLogin($ldapserver,$user) {
debug_log(sprintf('userIsAllowedLogin(): Entered with (%s,%s)',$ldapserver->server_id,$user),2);
global $ldapservers;
$user = strtolower($user);
if (! $ldapservers->GetValue($ldapserver->server_id,'login','allowed_dns'))
return true;
foreach ($ldapservers->GetValue($ldapserver->server_id,'login','allowed_dns') as $login_allowed_dn) {
debug_log(sprintf('userIsAllowedLogin: Working through (%s)',$login_allowed_dn),9);
// Check if $login_allowed_dn is an ldap search filter
// Is first occurence of 'filter=' (case ensitive) at position 0 ?
if ( preg_match('/^\([&|]\(/',$login_allowed_dn) ) {
$filter = $login_allowed_dn;
foreach($ldapserver->getBaseDN() as $base_dn) {
$results = array();
$results = pla_ldap_search( $ldapserver, $filter, $base_dn, array('dn') );
debug_log(sprintf('userIsAllowedLogin: Search, Filter [%s], BaseDN [%s] Results [%s]',
$filter, $base_dn, is_array($results)),9);
$dn_array = array();
if ($results) {
foreach ($results as $result)
$dn_array[] = $result['dn'];
$dn_array = array_unique( $dn_array );
if( count( $dn_array ) !== 0 )
foreach($dn_array as $result_dn) {
debug_log(sprintf('userIsAllowedLogin: Comparing with [%s]',
$result_dn),9);
// Check if $result_dn is a user DN
if ( 0 == strcasecmp( trim($user), trim(strtolower($result_dn)) ) )
return true;
// Check if $result_dn is a group DN
if ( userIsMember($ldapserver,$user,$result_dn) )
return true;
}
}
}
}
// Check if $login_allowed_dn is a user DN
if ( 0 == strcasecmp( trim($user), trim(strtolower($login_allowed_dn)) ) )
return true;
// Check if $login_allowed_dn is a group DN
if ( userIsMember($ldapserver,$user,$login_allowed_dn) )
return true;
}
return false;
}
/**
* Reads an array and returns the array values back in lower case
* @param array $array The array to convert the values to lowercase.
* @returns array Array with values converted to lowercase.
*/
function arrayLower($array) {
debug_log(sprintf('arrayLower(): Entered with (%s)',serialize($array)),2);
if (! is_array($array))
return $array;
$newarray = array();
foreach ($array as $key => $value) {
$newarray[$key] = strtolower($value);
}
return $newarray;
}
/**
* Strips all slashes from the specified array in place (pass by ref).
* @param Array $array The array to strip slashes from, typically one of
* $_GET, $_POST, or $_COOKIE.
*/
function array_stripslashes(&$array) {
debug_log(sprintf('array_stripslashes(): Entered with (%s)',serialize($array)),2);
if (is_array($array))
while (list($key) = each($array))
if (is_array($array[$key]) && $key != $array)
array_stripslashes($array[$key]);
else
$array[$key] = stripslashes($array[$key]);
}
/**
* Gets the USER_AGENT string from the $_SERVER array, all in lower case in
* an E_NOTICE safe manner.
* @return string|false The user agent string as reported by the browser.
*/
function get_user_agent_string() {
debug_log(sprintf('get_user_agent_string(): Entered with ()'),2);
if( isset( $_SERVER['HTTP_USER_AGENT'] ) )
$return = strtolower( $_SERVER['HTTP_USER_AGENT'] );
else
$return = false;
debug_log(sprintf('get_user_agent_string(): Returning (%s)',$return),1);
return $return;
}
/**
* Determines whether the browser's operating system is UNIX (or something like UNIX).
* @return boolean True if the brower's OS is UNIX, false otherwise.
*/
function is_browser_os_unix() {
debug_log(sprintf('is_browser_os_unix(): Entered with ()'),2);
$agent_strs = array(
'sunos','sunos 4','sunos 5',
'i86',
'irix','irix 5','irix 6','irix6',
'hp-ux','09.','10.',
'aix','aix 1','aix 2','aix 3','aix 4',
'inux',
'sco',
'unix_sv','unix_system_v','ncr','reliant','dec','osf1',
'dec_alpha','alphaserver','ultrix','alphastation',
'sinix',
'freebsd','bsd',
'x11','vax','openvms'
);
$return = string_in_array_value(get_user_agent_string(),$agent_strs);
debug_log(sprintf('is_browser_os_unix(): Returning (%s)',$return),1);
return $return;
}
/**
* Determines whether the browser's operating system is Windows.
* @return boolean True if the brower's OS is Windows, false otherwise.
*/
function is_browser_os_windows() {
debug_log(sprintf('is_browser_os_windows(): Entered with ()'),2);
$agent_strs = array(
'win','win95','windows 95',
'win16','windows 3.1','windows 16-bit','windows','win31','win16','winme',
'win2k','winxp',
'win98','windows 98','win9x',
'winnt','windows nt','win32',
'32bit'
);
$return = string_in_array_value(get_user_agent_string(),$agent_strs);
debug_log(sprintf('is_browser_os_windows(): Returning (%s)',$return),1);
return $return;
}
/**
* Determines whether the browser's operating system is Macintosh.
* @return boolean True if the brower's OS is mac, false otherwise.
*/
function is_browser_os_mac() {
debug_log(sprintf('is_browser_os_mac(): Entered with ()'),2);
$agent_strs = array(
'mac','68000','ppc','powerpc'
);
$return = string_in_array_value(get_user_agent_string(),$agent_strs);
debug_log(sprintf('is_browser_os_windows(): Returning (%s)',$return),1);
return $return;
}
/**
* Return posix group entries.
* @return Array An associative array of posix group entries with attributes as keys, and values as values.
* @param int $server_id The ID of the server to search.
* @param string $base_dn The base of the search.
* @deprecated
*/
function get_posix_groups($ldapserver,$base_dn=null) {
debug_log(sprintf('get_posix_groups(): Entered with (%s,%s)',$ldapserver->server_id,$base_dn),2);
if (is_null($base_dn))
$base_dn = $ldapserver->getBaseDN();
$results = pla_ldap_search($ldapserver,"objectclass=posixGroup",$base_dn,array());
if (!$results)
return array();
else
return $results;
}
/**
* Return the default format for search results.
*
* @return string The format to use.
*/
function get_default_search_display() {
debug_log(sprintf('get_default_search_display(): Entered with ()'),2);
global $default_search_display, $lang;
if( ! isset( $default_search_display ) || is_null( $default_search_display ) )
return 'list';
elseif( 0 == strcasecmp( $default_search_display, 'list' ) )
return 'list';
elseif( 0 == strcasecmp( $default_search_display, 'table' ) )
return 'table';
else
pla_error( sprintf( $lang['bad_search_display'], htmlspecialchars( $default_search_display ) ) );
}
/**
* Checks if a string exists in an array, ignoring case.
*
* @param string $needle What you are looking for
* @param array $haystack The array that you think it is in.
* @return bool True if its there, false if its not.
*/
function in_array_ignore_case( $needle, $haystack ) {
debug_log(sprintf('in_array_ignore_case(): Entered with (%s,%s)',$needle,serialize($haystack)),2);
if( ! is_array( $haystack ) )
return false;
if( ! is_string( $needle ) )
return false;
foreach( $haystack as $element )
if( is_string( $element ) && 0 == strcasecmp( $needle, $element ) )
return true;
return false;
}
/**
* Checks if a string exists in part in an array value, ignoring case.
*
* @param string $needle What you are looking for
* @param array $haystack The array that you think it is in.
* @return bool True if its there, false if its not.
*/
function string_in_array_value( $needle, $haystack ) {
debug_log(sprintf('string_in_array_value(): Entered with (%s,%s)',$needle,serialize($haystack)),2);
# Set default return
$return = false;
if (! is_string($needle)) return $return;
if (! is_array($haystack)) return $return;
foreach ($haystack as $element)
if (is_string($element) && (strpos($needle,$element) !== false)) {
$return = true;
break;
}
debug_log(sprintf('string_in_array_value(): Returning (%s)',$return),1);
return $return;
}
/**
* String padding
*
* @param string input string
* @param integer length of the result
* @param string the filling string
* @param integer padding mode
*
* @return string the padded string
*/
function full_str_pad($input, $pad_length, $pad_string = '', $pad_type = 0) {
debug_log(sprintf('full_str_pad(): Entered with (%s,%s,%s,%s)',$input,$pad_length,$pad_string,$pad_type),2);
$str = '';
$length = $pad_length - strlen($input);
if ($length > 0) { // str_repeat doesn't like negatives
if ($pad_type == STR_PAD_RIGHT) { // STR_PAD_RIGHT == 1
$str = $input.str_repeat($pad_string, $length);
} elseif ($pad_type == STR_PAD_BOTH) { // STR_PAD_BOTH == 2
$str = str_repeat($pad_string, floor($length/2));
$str .= $input;
$str .= str_repeat($pad_string, ceil($length/2));
} else { // defaults to STR_PAD_LEFT == 0
$str = str_repeat($pad_string, $length).$input;
}
} else { // if $length is negative or zero we don't need to do anything
$str = $input;
}
return $str;
}
/**
* Gets the user configured session blowfish secret from config.php.
*
* @return string|error Return the blowfish secret, or jump to an error.
*/
function get_blowfish_secret() {
debug_log(sprintf('get_blowfish_secret(): Entered with ()'),2);
global $config, $lang;
$return = $config->GetValue('session','blowfish');
# If our default is blank, then generate an error.
if (! trim($return))
pla_error( $lang['no_blowfish_secret'] );
debug_log(sprintf('get_blowfish_secret(): Returned (%s)',is_null($return)),2);
return $return;
}
/**
* Encryption using blowfish algorithm
*
* @param string original data
* @param string the secret
*
* @return string the encrypted result
*
* @access public
*
* @author lem9 (taken from the phpMyAdmin source)
*/
function pla_blowfish_encrypt( $data, $secret=null ) {
debug_log(sprintf('pla_blowfish_encrypt(): Entered with (%s,%s)',$data,$secret),2);
# If our secret is null or blank, get the default.
if( $secret === null || ! trim($secret))
$secret = get_blowfish_secret();
require_once LIBDIR.'blowfish.php';
$pma_cipher = new Horde_Cipher_blowfish;
$encrypt = '';
for ($i=0; $i<strlen($data); $i+=8) {
$block = substr($data, $i, 8);
if (strlen($block) < 8)
$block = full_str_pad($block,8,"\0", 1);
$encrypt .= $pma_cipher->encryptBlock($block, $secret);
}
return base64_encode($encrypt);
}
/**
* Decryption using blowfish algorithm
*
* @param string encrypted data
* @param string the secret
*
* @return string original data
*
* @access public
*
* @author lem9 (taken from the phpMyAdmin source)
*/
function pla_blowfish_decrypt( $encdata, $secret=null ) {
debug_log(sprintf('pla_blowfish_decrypt(): Entered with (%s,%s)',$encdata,$secret),2);
// This cache gives major speed up for stupid callers :)
static $cache = array();
if( isset( $cache[$encdata] ) )
return $cache[$encdata];
# If our secret is null or blank, get the default.
if( $secret === null || ! trim($secret))
$secret = get_blowfish_secret();
require_once LIBDIR.'blowfish.php';
$pma_cipher = new Horde_Cipher_blowfish;
$decrypt = '';
$data = base64_decode($encdata);
for ($i=0; $i<strlen($data); $i+=8) {
$decrypt .= $pma_cipher->decryptBlock(substr($data, $i, 8), $secret);
}
$return = trim($decrypt);
$cache[$encdata] = $return;
return $return;
}
/**
* Gets a DN string using the user-configured tree_display_format string to format it.
*/
function draw_formatted_dn( $ldapserver, $dn ) {
debug_log(sprintf('draw_formatted_dn(): Entered with (%s,%s)',$ldapserver->server_id,$dn),2);
global $config;
$format = $config->GetValue('appearance','tree_display_format');
preg_match_all( "/%[a-zA-Z_0-9]+/", $format, $tokens );
$tokens = $tokens[0];
foreach( $tokens as $token ) {
if( 0 == strcasecmp( $token, '%dn' ) )
$format = str_replace( $token, pretty_print_dn( $dn ), $format );
elseif( 0 == strcasecmp( $token, '%rdn' ) )
$format = str_replace( $token, pretty_print_dn( get_rdn( $dn ) ), $format );
elseif( 0 == strcasecmp( $token, '%rdnvalue' ) ) {
$rdn = get_rdn( $dn );
$rdn_value = explode( '=', $rdn, 2 );
$rdn_value = $rdn_value[1];
$format = str_replace( $token, $rdn_value, $format );
} else {
$attr_name = str_replace( '%', '', $token );
$attr_values = get_object_attr( $ldapserver, $dn, $attr_name );
if( null == $attr_values )
$display = 'none';
elseif( is_array( $attr_values ) )
$display = htmlspecialchars( implode( ', ', $attr_values ) );
else
$display = htmlspecialchars( $attr_values );
$format = str_replace( $token, $display, $format );
}
}
echo $format;
}
/**
* Gets the date format from the config - default locale if none.
* @deprecated
*/
function get_date_format() {
debug_log(sprintf('get_date_format(): Entered with ()'),2);
global $config;
return $config->GetValue('appearance','date');
}
/**
* Takes a shadow* attribute and returns the date as an integer.
*/
function shadow_date( $attrs, $attr) {
debug_log(sprintf('shadow_date(): Entered with (%s,%s)',serialize($attrs),$attr),2);
$shadowLastChange = isset($attrs['shadowLastChange']) ? $attrs['shadowLastChange'][0] : null;
$shadowMax = isset($attrs['shadowMax']) ? $attrs['shadowMax'][0] : null;
if( 0 == strcasecmp( $attr, 'shadowLastChange' ) && $shadowLastChange)
$shadow_date = $shadowLastChange;
elseif ( 0 == strcasecmp( $attr, 'shadowMax' ) && ($shadowMax > 0) && $shadowLastChange )
$shadow_date = $shadowLastChange+$shadowMax;
elseif ( 0 == strcasecmp( $attr, 'shadowWarning' ) && ($attrs[$attr][0] > 0) && $shadowLastChange && $shadowMax && $shadowMax > 0)
$shadow_date = $shadowLastChange+$shadowMax-$attrs[$attr][0];
elseif ( 0 == strcasecmp( $attr, 'shadowInactive' ) && ($attrs[$attr][0] > 0) && $shadowLastChange && $shadowMax && $shadowMax > 0)
$shadow_date = $shadowLastChange+$shadowMax+$attrs[$attr][0];
elseif ( 0 == strcasecmp( $attr, 'shadowMin' ) && ($attrs[$attr][0] > 0) && $shadowLastChange)
$shadow_date = $shadowLastChange+$attrs[$attr][0];
elseif ( 0 == strcasecmp( $attr, 'shadowExpire' ) && ($attrs[$attr][0] > 0))
$shadow_date = $attrs[$attr][0];
else // Couldn't interpret the shadow date (could be 0 or -1 or something)
return false;
return $shadow_date*24*3600;
}
/**
* This function will clean up the values use during a search - namely, values that have brackets
* as that messes up the search filter.
* @param string $val String that will be used in the search filter.
* @return string $result String that is ready for the search filter.
*/
function clean_search_vals( $val ) {
debug_log(sprintf('clean_search_vals(): Entered with (%s)',$val),2);
# Remove any escaped brackets already.
$val = preg_replace("/\\\\([\(\)])/","$1",$val);
# The string might be a proper search filter
if (preg_match("/^\([&\|]\(/",$val))
return $val;
else
return preg_replace("/([\(\)])/","\\\\$1",$val);
}
/**
* Server html select list
*/
function server_select_list ($select_id=null,$only_logged_on=true,$select_name='server_id',$js_script=null) {
debug_log(sprintf('server_select_list(): Entered with (%s,%s,%s,%s)',
$select_id,$only_logged_on,$select_name,$js_script),2);
global $ldapservers;
$count = 0;
$server_menu_html = sprintf('<select name="%s" %s>',$select_name,$js_script);
foreach ($ldapservers->GetServerList() as $id) {
$ldapserver = $ldapservers->Instance($id);
if ($ldapserver->isVisible()) {
if ($only_logged_on && ! $ldapserver->haveAuthInfo())
continue;
$count++;
$server = $ldapserver;
$server_menu_html .= sprintf('<option value="%s" %s>%s</option>',
$ldapserver->server_id,( $ldapserver->server_id == $select_id ? 'selected' : '' ),$ldapserver->name);
}
}
$server_menu_html .= '</select>';
if ($count > 1)
return $server_menu_html;
elseif ($count)
return sprintf('%s <input type="hidden" name="%s" value="%s">',
$server->name,$select_name,$server->server_id);
else
return null;
}
function server_info_list() {
debug_log(sprintf('server_info_list(): Entered with ()'),2);
global $ldapservers;
$server_info_list = array();
foreach ($ldapservers->GetServerList() as $id) {
$ldapserver = $ldapservers->Instance($id);
if (! $ldapserver->haveAuthInfo() || ! $ldapserver->isValidServer($id))
continue;
$server_info_list[$id]['id'] = $id;
$server_info_list[$id]['name'] = $ldapserver->name;
$server_info_list[$id]['base_dn'] = $ldapserver->getBaseDN();
}
debug_log(sprintf('server_info_list(): Returning (%s)',serialize($server_info_list)),1);
return $server_info_list;
}
/**
* Debug Logging to Syslog
*
* If the log level of the message is less than the log level of the debug setting in the config file
* then log the message to syslog.
*
* Suggested logging level messages:
* 1 = Return results from function calls.
* 2 = Entry parameters to function calls.
* 3 = CACHE returning indications
* 4 = High level processing
* 5 = 2nd level processing
* 9 = Very verbose (describing what the code is doing)
* @param string $msg Message to send to syslog
* @param int $level Log level of this message.
* @see syslog.php
*/
function debug_log($msg,$level=0) {
global $config;
# In case we are called before we are fully initialised.
if (! isset($config))
return false;
$debug_level = $config->GetValue('debug','level');
$caller = basename( $_SERVER['PHP_SELF'] );
if (! $debug_level)
$debug_level = -1;
if ($level <= $debug_level)
return syslog_notice( sprintf('%s(%s): %s',$caller,$level,$msg) );
}
function enc_type_select_list($enc_type) {
debug_log(sprintf('enc_type_select_list(): Entered with (%s)',$enc_type),2);
$html = '<select name="enc_type">';
$html .= '<option>clear</option>';
foreach (array('crypt','ext_des','md5crypt','blowfish','md5','smd5','sha','ssha') as $option)
$html .= sprintf('<option%s>%s</option>',($enc_type == $option ? ' selected="true"' : ''),$option);
$html .= "</select>";
return $html;
}
// Converts a little-endia hex-number to one, that 'hexdec' can convert
function littleEndian($hex) {
debug_log(sprintf('littleEndian(): Entered with (%s)',$hex),2);
$result = '';
for ($x=strlen($hex)-2; $x >= 0; $x=$x-2)
$result .= substr($hex,$x,2);
return $result;
}
function binSIDtoText($binsid) {
debug_log(sprintf('binSIDtoText(): Entered with (%s)',$binsid),2);
$hex_sid=bin2hex($binsid);
$rev = hexdec(substr($hex_sid,0,2)); // Get revision-part of SID
$subcount = hexdec(substr($hex_sid,2,2)); // Get count of sub-auth entries
$auth = hexdec(substr($hex_sid,4,12)); // SECURITY_NT_AUTHORITY
$result = "$rev-$auth";
for ($x=0;$x < $subcount; $x++) {
$subauth[$x] =
hexdec(littleEndian(substr($hex_sid,16+($x*8),8))); // get all SECURITY_NT_AUTHORITY
$result .= "-".$subauth[$x];
}
return $result;
}
if (! function_exists('session_cache_expire')) {
/**
* session_cache_expire is a php 4.2.0 function, we'll emulate it if we are using php <4.2.0
*/
function session_cache_expire() {
debug_log(sprintf('session_cache_expire(): Entered with ()'),2);
return 180;
}
}
/**
* Sort a multi dimensional array.
* @param array $data Multi demension array passed by reference
* @param string $sortby Comma delimited string of sort keys.
* @param bool $rev Whether to reverse sort.
* @returnn array $data Sorted multi demension array.
*/
function masort(&$data, $sortby, $rev=0) {
debug_log(sprintf('masort(): Entered with (%s,%s,%s)',serialize($data),$sortby,$rev),2);
static $sort_funcs = array();
if (empty($sort_funcs[$sortby])) {
$code = "\$c=0;\n";
foreach (split(',', $sortby) as $key) {
$code .= "if ((! isset(\$a['$key'])) && (! isset(\$b['$key']))) return 0;\n";
$code .= "if ((! isset(\$a['$key'])) && isset(\$b['$key'])) return -1;\n";
$code .= "if (isset(\$a['$key']) && (! isset(\$b['$key']))) return 1;\n";
$code .= "if (is_numeric(\$a['$key']) && is_numeric(\$b['$key'])) {\n";
$code .= " if (\$a['$key'] != \$b['$key'])\n";
if ($rev)
$code .= " return (\$a['$key'] < \$b['$key'] ? -1 : 1);\n";
else
$code .= " return (\$a['$key'] > \$b['$key'] ? -1 : 1);\n";
$code .= "} else {\n";
if ($rev)
$code .= " if ( (\$c = strcasecmp(\$b['$key'],\$a['$key'])) != 0 ) return \$c;\n";
else
$code .= " if ( (\$c = strcasecmp(\$a['$key'],\$b['$key'])) != 0 ) return \$c;\n";
$code .= "}\n";
}
$code .= 'return $c;';
$sort_func = $sort_funcs[$sortby] = create_function('$a, $b', $code);
} else {
$sort_func = $sort_funcs[$sortby];
}
$sort_func = $sort_funcs[$sortby];
uasort($data, $sort_func);
}
/**
* Query LDAP and return a hash.
* @param object $ldapserver The LDAPServer object of the server which the user hsa logged in.
* @param string $base_dn The base DN to use.
* @param string $filter LDAP Query filter.
* @param string $key LDAP attribute to use as key.
* @param array $attrs LDAP attributes to use as values.
* @return array $results Array of values keyed by $key.
*/
function return_ldap_hash($ldapserver,$base_dn,$filter,$key,$attrs) {
debug_log(sprintf('return_ldap_hash(): Entered with (%s,%s,%s,%s,%s)',
$ldapserver->server_id,$base_dn,$filter,$key,count($attrs)),2);
$ldapquery = pla_ldap_search($ldapserver,$filter,$base_dn,$attrs);
$results = array();
foreach ($ldapquery as $dn => $dnattrs) {
foreach ($attrs as $attr) {
if (isset($dnattrs[$attr]))
$results[$dnattrs[$key]][$attr] = $dnattrs[$attr];
}
}
return $results;
}
// @todo: document this function
function debug_dump($variable,$die=false) {
print "<PRE>";
print_r($variable);
if ($die)
die();
}
/**
* This function returns a string automatically generated
* based on the criteria defined in the array $criteria in config.php
*/
function password_generate() {
debug_log(sprintf('password_generate(): Entered with ()'),2);
global $config;
$no_use_similiar = ! $config->GetValue('password','use_similar');
$lowercase = $config->GetValue('password','lowercase');
$uppercase = $config->GetValue('password','uppercase');
$digits = $config->GetValue('password','numbers');
$punctuation = $config->GetValue('password','punctuation');
$length = $config->GetValue('password','length');
$outarray = array();
if ($no_use_similiar) {
$raw_lower = "a b c d e f g h k m n p q r s t u v w x y z";
$raw_numbers = "2 3 4 5 6 7 8 9";
$raw_punc = "# $ % ^ & * ( ) _ - + = . , [ ] { } :";
} else {
$raw_lower = "a b c d e f g h i j k l m n o p q r s t u v w x y z";
$raw_numbers = "1 2 3 4 5 6 7 8 9 0";
$raw_punc = "# $ % ^ & * ( ) _ - + = . , [ ] { } : |";
}
$llower = explode(" ", $raw_lower);
shuffle($llower);
$lupper = explode(" ", strtoupper($raw_lower));
shuffle($lupper);
$numbers = explode(" ", $raw_numbers);
shuffle($numbers);
$punc = explode(" ", $raw_punc);
shuffle($punc);
if ($lowercase > 0)
$outarray = array_merge($outarray,a_array_rand($llower,$lowercase));
if ($uppercase > 0)
$outarray = array_merge($outarray,a_array_rand($lupper,$uppercase));
if ($digits > 0)
$outarray = array_merge($outarray,a_array_rand($numbers,$digits));
if ($punctuation > 0)
$outarray = array_merge($outarray,a_array_rand($punc,$punctuation));
$num_spec = $lowercase + $uppercase + $digits + $punctuation;
if ($num_spec < $length) {
$leftover = array();
if ($lowercase > 0)
$leftover = array_merge($leftover, $llower);
if ($uppercase > 0)
$leftover = array_merge($leftover, $lupper);
if ($digits > 0)
$leftover = array_merge($leftover, $numbers);
if ($punctuation > 0)
$leftover = array_merge($leftover, $punc);
if (count($leftover) == 0)
$leftover = array_merge($leftover,$llower,$lupper,$numbers,$punc);
shuffle($leftover);
$outarray = array_merge($outarray, a_array_rand($leftover, $criteria['num'] - $num_spec));
}
shuffle($outarray);
$return = implode('', $outarray);
debug_log(sprintf('password_generate(): Returning (%s)',$return),1);
return $return;
}
/**
* This function returns an array of $num_req values
* randomly picked from the $input array
*
* @param array of values
* @param integer, number of values in returned array
* @return string the padded string
*/
function a_array_rand($input,$num_req) {
debug_log(sprintf('a_array_rand(): Entered with (%s,%s)',serialize($input),$num_req),2);
if (count($input) == 0)
return array();
if ($num_req < 1)
return array();
$return = array();
if ($num_req > count($input)) {
for($i = 0; $i < $num_req; $i++) {
$idx = array_rand($input, 1);
$return[] = $input[$idx];
}
} else {
$idxlist = array_rand($input, $num_req);
if ($num_req == 1)
$idxlist = array($idxlist);
for($i = 0; $i < count($idxlist); $i++)
$return[] = $input[$idxlist[$i]];
}
debug_log(sprintf('a_array_rand(): Returning (%s)',serialize($return)),1);
return $return;
}
/**
* Returns the cached array of LDAP resources.
*
* Note that internally, this function utilizes a two-layer cache,
* one in memory using a static variable for multiple calls within
* the same page load, and one in a session for multiple calls within
* the same user session (spanning multiple page loads).
*
* @return Returns the cached attributed requested,
* or null if there is nothing cached..
*/
function get_cached_item($server_id,$item,$subitem='null') {
debug_log(sprintf('get_cached_item(): Entered with (%s,%s,%s)',$server_id,$item,$subitem),2);
global $config;
# Set default return
$return = null;
# Check config to make sure session-based caching is enabled.
if ($config->GetValue('cache',$item)) {
static $cache;
if (isset($cache[$server_id][$item][$subitem])) {
debug_log(sprintf('get_cached_item(): Returning MEMORY cached [%s] (%s)',$item,$subitem),3);
$return = $cache[$server_id][$item][$subitem];
} elseif (isset($_SESSION['cache'][$server_id][$item][$subitem])) {
debug_log(sprintf('get_cached_item(): Returning SESSION cached [%s] (%s)',$item,$subitem),3);
$return = $_SESSION['cache'][$server_id][$item][$subitem];
$cache[$server_id][$item][$subitem] = $return;
}
}
debug_log(sprintf('get_cached_item(): Returning (%s)',serialize($return)),1);
return $return;
}
/**
* Caches the specified $item for the specified $server_id.
*
* Returns true on success of false on failure.
*/
function set_cached_item($server_id,$item,$subitem='null',$data) {
debug_log(sprintf('set_cached_item(): Entered with (%s,%s,%s,%s)',$server_id,$item,$subitem,serialize($data)),2);
global $config;
# Check config to make sure session-based caching is enabled.
if ($config->GetValue('cache',$item)) {
static $cache;
$cache[$server_id][$item][$subitem] = $data;
$_SESSION['cache'][$server_id][$item][$subitem] = $data;
return true;
} else
return false;
}
/**
* Get the LDAP base DN for a named DN.
*
* @param string $dn DN in question
* @param object $ldapserver Server ID where DN is located
* @return string $base_dn
*/
function dn_get_base($ldapserver,$dn) {
foreach ($ldapserver->getBaseDN() as $base_dn) {
if (preg_match("/".$base_dn."$/",$dn))
return $base_dn;
}
return null;
}
?>